CN104110654B - A kind of light fixture with built-in lock - Google Patents

A kind of light fixture with built-in lock Download PDF

Info

Publication number
CN104110654B
CN104110654B CN201310132295.3A CN201310132295A CN104110654B CN 104110654 B CN104110654 B CN 104110654B CN 201310132295 A CN201310132295 A CN 201310132295A CN 104110654 B CN104110654 B CN 104110654B
Authority
CN
China
Prior art keywords
breach
upper cover
cannelure
light fixture
top cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201310132295.3A
Other languages
Chinese (zh)
Other versions
CN104110654A (en
Inventor
周明杰
曾伟锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Original Assignee
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oceans King Lighting Science and Technology Co Ltd, Oceans King Dongguan Lighting Technology Co Ltd, Shenzhen Oceans King Lighting Engineering Co Ltd filed Critical Oceans King Lighting Science and Technology Co Ltd
Priority to CN201310132295.3A priority Critical patent/CN104110654B/en
Publication of CN104110654A publication Critical patent/CN104110654A/en
Application granted granted Critical
Publication of CN104110654B publication Critical patent/CN104110654B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The present invention provides a kind of light fixture with built-in lock, comprising: housing;Transparent Parts;Trim ring;Upper cover;Sealing ring;Top cover;It is characterized in that, be additionally provided with in described upper cover: two the first breach, it is arranged at the bottom surface of described upper cover, and is upwardly extended by the bottom surface of upper cover, and the centrage of the most described upper cover of said two the first breach is mutually symmetrical with;One cannelure, described cannelure is positioned at inside described upper cover, and first breach described with two is connected;With two the second breach, it is downwardly extended by described cannelure, and is connected with described cannelure;Wherein, the height that the height that described second breach extends extends less than described first breach, and said two the second breach is mutually symmetrical with relative to the centrage of upper cover;Described light fixture also includes: the first locking mechanism being connected on described top cover, and described first locking mechanism initial position is positioned at two the first indentation, there, and is locked with described upper cover by described top cover when turning to two the second breach along described cannelure.

Description

A kind of light fixture with built-in lock
Technical field
The present invention relates to lighting field, in particular it relates to a kind of light fixture with built-in lock.
Background technology
Existing general locking light fixture is made up of trim ring, Transparent Parts, housing, upper cover, screw, sealing ring, top cover, latch hook. Typically first Transparent Parts is loaded housing, then trim ring is screwed in housing and fix Transparent Parts;The top again upper cover being placed on housing Portion, is screwed;Then sealing ring is put into the groove of upper cover;Subsequently break the both sides of that end of opening of latch hook into two with one's hands set Enter in the preformed hole of top cover, top cover is put upper tops;Groove is reserved in the outside finally other end of latch hook being inserted in upper cover.
The generally lockset of these light fixtures there is problems in that (1). because one end of latch hook is opening, when it is broken into two with one's hands set When entering the preformed hole of top cover, latch hook is easily deformed;When the dynamics broken into two with one's hands is slightly larger, latch hook will be ineffective, needs again to change Latch hook;(2). the elastic force of latch hook is limited, and the power that is locked making lamp casing is less than normal, and seal failure causes light fixture easily to be intake; (3). there is the outer surface of light fixture in latch hook, have impact on the attractive in appearance of light fixture entirety, feel that Design of Luminaires must be more popular to client.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of light fixture with built-in lock.
According to an aspect of the present invention, it is provided that a kind of light fixture with built-in lock, comprising: housing;Transparent Parts, described Bright part is installed on described housing;Trim ring, described trim ring screws in described housing, and is positioned over described from the top of described Transparent Parts Described Transparent Parts is fixed in Transparent Parts;Upper cover, described top cap is connected to the lower section of described housing;Sealing ring, described sealing ring is put In described upper cover;Top cover, described top cover is positioned at the lower section of described upper cover;It is characterized in that, be additionally provided with in described upper cover: two First breach, it is arranged at the bottom surface of described upper cover, and is upwardly extended by the bottom surface of described upper cover, said two the first breach phase Mutually symmetrical with to the centrage of described upper cover;One cannelure, described cannelure is positioned at inside described upper cover, and described with two first Breach is connected;With two the second breach, it is downwardly extended by described cannelure, and is connected with described cannelure;Wherein, institute State the height that the second breach downwardly extends by described cannelure upwardly extending by described upper cover bottom surface less than described first breach Highly, and the centrage of the most described upper cover of said two the second breach is mutually symmetrical with;Described light fixture also includes: be connected to described The first locking mechanism on top cover, described first locking mechanism initial position is positioned at two the first indentation, there, and along described Cannelure turns to be locked with described upper cover by described top cover during two the second breach.
Preferably, described first locking mechanism includes: lock box, described lock box between described upper cover and described top cover, It screws in described top cover;Spring, described spring is positioned at the inside of described lock box;And lock core, described lock core is positioned at described spring Lower section, described lock core adapts with described first breach and described second breach;Wherein, the sidewall of described lock box is additionally provided with Two corresponding grooves, the two ends of described lock core pass two described grooves, and described groove respectively inside described lock box Longitudinal section height more than the longitudinal section height of described lock core, described lock core moves up and down in described groove, described lock core from Described first breach penetrates described cannelure, and slips into described second breach, described top cover and institute after the rotation of described cannelure State upper cover locking.
Preferably, the outside bottom described lock box is provided with an external screw thread, the inner side of described top cover be provided with one with described outer spiral shell The female thread that stricture of vagina adapts, is connected by described external screw thread and described female thread between described lock box with described top cover.
Preferably, described female thread and described external screw thread are the screw thread of M85.
Preferably, between described first breach and described second breach, angle is arbitrary less than or equal to 90 degree more than 0 degree Angle.
Preferably, lead between described first breach and described cannelure and between described second breach and described cannelure Cross a chamfered transition connection.
Preferably, lead between described first breach and described cannelure and between described second breach and described cannelure Cross an arc transition connection.
Preferably, the longitudinal section of described groove is rectangle.
Preferably, it is connected by some screws between described upper cover with described housing.
Preferably, being provided with a groove bottom described upper cover, described sealing ring is placed in described groove.
The present invention is by providing a kind of light fixture with built-in lock, and it arranges locking mechanism between upper cover and top cover, thus Solve production fraction defective when tradition latch hook is applied on light fixture higher, light fixture seal failure, easily intake and affect client U.S. The problem of sense.This built-in lock light fixture is easy to make, produces and using method is simple, and the lock construction element of built-in lock light fixture, whole devices exist Inside lamp casing, not only improve the production efficiency of light fixture, it is to avoid light fixture deperssurization emergency, also allow the client meet it Requirement to light fixture overall aesthetic.
Accompanying drawing explanation
By the detailed description non-limiting example made with reference to the following drawings of reading, the further feature of the present invention, Purpose and advantage will become more apparent upon:
Fig. 1 illustrates the structural representation of the light fixture with built-in lock according to the first embodiment of the present invention;
Fig. 2 illustrates the vertical section structure schematic diagram of the light fixture with built-in lock according to the first embodiment of the present invention;
Fig. 3 illustrates the vertical section structure schematic diagram of the light fixture with built-in lock according to the first embodiment of the present invention;And
Fig. 4 illustrates the upward view of the light fixture with built-in lock according to the first embodiment of the present invention.
Detailed description of the invention
With embodiment, the technology contents of the present invention is described further below in conjunction with the accompanying drawings:
Fig. 1 shows the structural blast figure of the light fixture with built-in lock according to the first embodiment of the present invention.
As it is shown in figure 1, the light fixture with built-in lock includes: housing 110, Transparent Parts 120, trim ring 130, upper cover 140, sealing ring 150 and top cover 160.Wherein, Transparent Parts 120 is installed on housing 110.Trim ring 130 screws in housing from the top of Transparent Parts 120 110, and be positioned in Transparent Parts 120 for fixing Transparent Parts 120.Upper cover 140 is connected to the lower section of housing 110, it is preferable that on It is connected by some screws between lid 140 and housing 110.Sealing ring 150 is placed in upper cover 140, is used for sealing described light fixture. More specifically, upper cover 140 is provided preferably with a groove (not shown), sealing ring 150 puts into upper cover 140 from the lower section of upper cover Groove in.Top cover 160 is positioned at the lower section of upper cover 140, and it locks mutually thus sealed lamps with upper cover 140.
Further, the light fixture described in built-in lock also includes the first locking mechanism.Wherein, the first locking mechanism is connected to On top cover 160, and top cover 160 is locked in the lower section of upper cover 140.Specifically, the first locking mechanism includes: lock box 171, spring 172 and lock core 173.Wherein, lock box 171 between upper cover 140 and top cover 160, and lock box 171 screw in top cover 160 it In.More specifically, the outside bottom lock box 171 is provided with an external screw thread, the inner side of top cover 160 be provided with one with lock box 171 external screw thread The female thread adapted, lock box 171 is connected by described external screw thread and described female thread with top cover 160.Preferably, described Female thread and described external screw thread are the screw thread of M85.Further, spring 172 is positioned at the inside of lock box 171.Lock core 173 Lower section in spring 172.More specifically, be additionally provided with two corresponding grooves 174, the two of lock core 173 on the sidewall of lock box 171 End inside from lock box 171 respectively passes two grooves 174, and the height of groove 174 longitudinal section is more than lock core 173 longitudinal section Highly, lock core 173 can move up and down in groove 174.
More specifically, in the embodiment shown in fig. 1, it is preferable that the cross section of groove 174 is rectangle.And change at some In example, groove 174 can also be other shapes, only needs lock core 173 can move up and down in groove 174.This area skill Art personnel understand, these change case all can be achieved, and it will not go into details herein.
Fig. 2 shows the vertical section structure schematic diagram of the light fixture with built-in lock according to the first embodiment of the present invention.
Fig. 3 shows the vertical section structure schematic diagram of the light fixture with built-in lock according to the first embodiment of the present invention.
Fig. 2 and Fig. 3 has two mutually perpendicular cross sections of light fixture of built-in lock described in respectively illustrating.Further, See Fig. 2 and Fig. 3, in this embodiment, in upper cover 140, be additionally provided with two the first breach 181, cannelures 182 and two Individual second breach 183.First breach 181, cannelure 182 and the second breach 183 may be contained within the inwall of upper cover 140, and two Individual first breach 181 is extended downward the bottom surface of upper cover 140 by cannelure 182;Two the second breach 183 by cannelure 182 to Lower extension but not to the bottom surface of upper cover 140, the degree of depth that the second breach 183 is downwardly extended by cannelure 182 be less than the first breach 181 The degree of depth downwardly extended by cannelure 182.Wherein, the first breach 181 and the second breach 183 all adapt with lock core 173, and All it is connected with cannelure 182.And the height of groove 174 longitudinal section is more than or equal to the first breach 181 by cannelure on lock box 171 182 height downwardly extended.And then, lock core 173 penetrates cannelure 182 from the first breach 181 of upper cover 140 bottom surface, and edge can Slip in the second breach 183 after rotating with cannelure 182.
More specifically, the angle formed between the first breach 181 and the second breach 183 is less than or equal to 90 degree more than 0 degree.? In one preference, the angle formed between the first breach 181 and the second breach 183 is 90 degree, and i.e. lock core 173 is from the first breach After 181 penetrate cannelure 182, annularly can slip into the second breach 183 after groove 182 90-degree rotation.And two the first breach 181 The centrage of upper cover 140 relatively is mutually symmetrical with, and two the second breach 183 are also mutually symmetrical with relative to the centrage of upper cover 140.And In some change case, may not be vertical between the first breach 181 with the second breach 183.The most in one embodiment, Can be in the angle of 60 degree between first breach 181 and the second breach 183, in another embodiment, the first breach 181 and Can also be in the angle of 30 degree between two breach 183.In other are example, it will be understood by those skilled in the art that first lacks Angle between mouth 181 and the second breach 183 may be greater than 0 degree of any angle less than or equal to 90 degree.These change case are equal Can be achieved, it will not go into details herein.
More specifically, in one embodiment, between the first breach 181 and cannelure 182 and the second breach 183 and ring Can be connected by a chamfered transition between shape groove 182.And in another embodiment, the first breach 181 and cannelure 182 it Between and the second breach 183 and cannelure 182 between can also be connected by an arc transition.
The most further, it will be appreciated by those skilled in the art that in a preference, described in there is light fixture each of built-in lock The manufacture of individual parts is: by trim ring 130 die cast on request, and trim ring 130 external diameter is 190mm, a height of 12.2mm, with The screw thread of M190;Transparent Parts 120 being cast on request and form, top spheroiding, base diameter is 187mm;By housing 110, on Lid 140 die cast on request, the screw thread of M190 is arranged at housing 110 top, and four counterbores have been done in bottom, and upper cover 140 has four to lead to Hole and the explosion-proof intake of wire, the first breach 181 that the centrage of two relative upper covers 140 is mutually symmetrical with, upper cover 140 are arranged at bottom Bottom, medial wall is provided with a ring shaped slot 182, does downwards the centrage of relative upper cover 140 along ring shaped slot 182 mutual in upper cover 140 The second symmetrical breach 183;Then make the screw of M8 on request with filature, existing standard type used by sealing ring 150 Sealing ring;Again by lock box 171 die cast on request, external diameter is 85mm, and internal diameter is 75mm, a height of 31mm, in relative lock box 171 The side of heart line symmetry is respectively arranged with a rectangle groove 174, and the screw thread of M85 is arranged at bottom;Then spring 172 is refined with coiling machine Forming, the line footpath of spring 172 is 0.8mm, and external thread diameter is 74mm, and lock core 173 is subsequently rushed by a length of 15mm on request Molded, a length of 97mm, wide 3.6mm, thickness is 2.5mm.Then by top cover 160 die cast on request, top cover 160 diameter For 126mm, inner circle side is with the screw thread of M85.
The most further, with reference to Fig. 1 and Fig. 2, it is preferable that described in there is built-in lock the assemble method of light fixture be: first Spring 172 is put into lock box 171, then lock core 173 is penetrated lock box outside the rectangle groove 174 of lock box 171 side 171, after dead spring 172, lock core 173 passes lock box 171 in the rectangle groove 174 of the opposite side of lock box 171, then will The above-mentioned lock box 171 assembled screws in the endoporus of top cover 160;Again Transparent Parts 120 is loaded housing 110, then by trim ring 130 Screw in housing 110 and fix Transparent Parts 120;Upper cover 140 is placed on the bottom of housing 110 again, with screw by upper cover 140 and housing 110 is fastened to each other;Then sealing ring 150 is put into the groove of upper cover 140;Again the top cover 160 assembled above is inserted in In lid 140, the lock core 173 that top cover 160 assembles penetrates in upper cover 140 from two the first breach 181 of upper cover 140, now, The height of cannelure 182 position is higher than the height of lock core 173, and owing to the first breach 181 is connected with cannelure 182, first lacks By an inclined-plane or a circular sliding slopes transition between mouth 181 and cannelure 182, lock core 173 is positioned at connection the first breach 181 and ring The inclined-plane of shape groove 182 or the lowest part of circular arc.Therefore, rotating cap 160, top cover 160 inserts the lock core 173 in lock box 171 Just and then rotating together, lock core 173 can proceed in cannelure 182 along inclined-plane or circular arc.Lock core 173 slips into cannelure 182 After, just give 172 1 pressure of spring inside lock box 171, make spring 172 produce counteracting force.When top cover 160 90-degree rotation After, during two the second breach 183 that lock core 173 connects with cannelure 182 in correspondingly arriving upper cover 140, the anti-work of spring 172 Firmly just lock core 173 is snapped into the second breach 183, lock described light fixture (as shown in FIG. 2 and 3).And then, when client needs When opening light fixture, rotating cap 160 of only need to slightly exerting oneself, due between the second breach 183 and cannelure 182 also by an inclined-plane Or an arc transition, therefore, similarly, lock core 173 enters cannelure 182 from the second breach 183, and then goes to the first breach When 181, lock core just can be untied, and opens light fixture.
Fig. 4 shows the upward view of the light fixture with built-in lock according to the first embodiment of the present invention.Fig. 4 shows housing 110, the size between upper cover 140 and top cover 160 and mutual position relationship.
The most further, complex chart 1 to embodiment illustrated in fig. 4, it will be appreciated by those skilled in the art that the present invention passes through at lamp Locking mechanism is set between upper cover and the top cover of tool, thus solves when tradition latch hook is applied on light fixture and produce fraction defective relatively Height, light fixture seal failure, the problem easily intake and affect client's aesthetic feeling.Plant built-in lock light fixture easy to make, produce and user Method is simple, the lock construction element of built-in lock light fixture, and whole devices, inside lamp casing, not only improve the production efficiency of light fixture, it is to avoid Light fixture deperssurization emergency, also allows the client meet its requirement to light fixture overall aesthetic.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned Particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims, this not shadow Ring the flesh and blood of the present invention.

Claims (9)

1. there is a light fixture for built-in lock, comprising:
Housing;
Transparent Parts, described Transparent Parts is installed on described housing;
Trim ring, described trim ring screws in described housing, and is positioned in described Transparent Parts fixing described from the top of described Transparent Parts Transparent Parts;
Upper cover, described top cap is connected to the lower section of described housing;
Sealing ring, described sealing ring is placed in described upper cover;
Top cover, described top cover is positioned at the lower section of described upper cover;
It is characterized in that, be additionally provided with in described upper cover:
Two the first breach, it is arranged at the bottom surface of described upper cover, and is upwardly extended by the bottom surface of described upper cover, said two The centrage of the one the most described upper cover of breach is mutually symmetrical with;
One cannelure, described cannelure is positioned at inside described upper cover, and first breach described with two is connected;With
Two the second breach, it is downwardly extended by described cannelure, and is connected with described cannelure;Wherein, described second lacks The height that downwardly extended by described cannelure of mouth less than described first breach by the upwardly extending height in described upper cover bottom surface, and institute The centrage stating two the second the most described upper covers of breach is mutually symmetrical with;
Described light fixture also includes:
The first locking mechanism being connected on described top cover, described first locking mechanism initial position is positioned at two the first breach Place, and when turning to two the second breach along described cannelure, described top cover is locked with described upper cover;
Described first locking mechanism includes:
Lock box, described lock box is between described upper cover and described top cover, and it screws in described top cover;
Spring, described spring is positioned at the inside of described lock box;With
Lock core, described lock core is positioned at the lower section of described spring, described lock core and described first breach and described second breach phase Adapt to;
Wherein, the sidewall of described lock box being additionally provided with two corresponding grooves, after described lock core depresses described spring, two ends are divided Inside described lock box, do not pass two described grooves, and the longitudinal section height of described groove is high more than the longitudinal section of described lock core Degree, described lock core moves up and down in described groove, and described lock core penetrates described cannelure from described first breach, and along described Cannelure slips into described second breach after rotating, described top cover locks with described upper cover.
Light fixture the most according to claim 1, it is characterised in that the outside bottom described lock box is provided with an external screw thread, described The inner side of top cover is provided with a female thread adapted with described external screw thread, by described outer spiral shell between described lock box and described top cover Stricture of vagina and described female thread are connected.
Light fixture the most according to claim 2, it is characterised in that described female thread and described external screw thread are the spiral shell of M85 Stricture of vagina.
Light fixture the most according to claim 1, it is characterised in that between described first breach and described second breach, angle is The unspecified angle of 90 degree it is less than or equal to more than 0 degree.
Light fixture the most according to claim 1, it is characterised in that between described first breach and described cannelure and described Connected by a chamfered transition between second breach with described cannelure.
Light fixture the most according to claim 1, it is characterised in that between described first breach and described cannelure and described Connected by an arc transition between second breach with described cannelure.
Light fixture the most according to claim 1, it is characterised in that the longitudinal section of described groove is rectangle.
Light fixture the most according to claim 1, it is characterised in that by some screw phases between described upper cover with described housing Connect.
Light fixture the most according to claim 1, it is characterised in that be provided with a groove bottom described upper cover, described sealing ring is put Insert in described groove.
CN201310132295.3A 2013-04-16 2013-04-16 A kind of light fixture with built-in lock Expired - Fee Related CN104110654B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310132295.3A CN104110654B (en) 2013-04-16 2013-04-16 A kind of light fixture with built-in lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310132295.3A CN104110654B (en) 2013-04-16 2013-04-16 A kind of light fixture with built-in lock

Publications (2)

Publication Number Publication Date
CN104110654A CN104110654A (en) 2014-10-22
CN104110654B true CN104110654B (en) 2016-12-28

Family

ID=51707560

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310132295.3A Expired - Fee Related CN104110654B (en) 2013-04-16 2013-04-16 A kind of light fixture with built-in lock

Country Status (1)

Country Link
CN (1) CN104110654B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344118A (en) * 1979-03-20 1982-08-10 Studsvik Energiteknik Ab Lamp device for underwater use
US5704710A (en) * 1996-02-29 1998-01-06 The Genlyte Group, Incorporated Lighting fixture with a safety hook
CN102563396A (en) * 2010-12-31 2012-07-11 海洋王照明科技股份有限公司 Shockproof lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344118A (en) * 1979-03-20 1982-08-10 Studsvik Energiteknik Ab Lamp device for underwater use
US5704710A (en) * 1996-02-29 1998-01-06 The Genlyte Group, Incorporated Lighting fixture with a safety hook
CN102563396A (en) * 2010-12-31 2012-07-11 海洋王照明科技股份有限公司 Shockproof lamp

Also Published As

Publication number Publication date
CN104110654A (en) 2014-10-22

Similar Documents

Publication Publication Date Title
CN102805473B (en) A kind of minaudiere
CN104110654B (en) A kind of light fixture with built-in lock
CN206831445U (en) A kind of wiring construction of light fixture
CN106247286A (en) A kind of detachable lamp
CN205186863U (en) Double -layer antiforgery cap
CN207420269U (en) Electric cabinet lock
CN203336391U (en) Rotatable fireproof and waterproof LED embedded lamp
CN202580753U (en) LED-PAR (Light-Emitting Diode and Parabolic Aluminum Reflector) lamp with sealing structure
CN204477812U (en) A kind of IP65 LED wall lamp
CN102715813B (en) Portable water glass medicine box
CN201378567Y (en) Lamp holder of energy-saving lamp
CN208442785U (en) Mounting structure and lamp base
CN203421498U (en) Internally arranged tail cover of flashlight
CN207035006U (en) Adjustable light guide board fixing structure and light fixture
CN202229017U (en) Microwave induction lamp
CN205738763U (en) A kind of reagent bottle
CN206159913U (en) Mushroom lamp
CN201408738Y (en) Energy-saving lamp
CN205782200U (en) A kind of Combined, modularized LED
CN220707095U (en) Improved string lamp structure
CN205716712U (en) A kind of protection against electric shock fluorescent tube
CN217013071U (en) Hanging piece
CN204767430U (en) Take lamp bucket
CN204306692U (en) A kind of stainless steel vacuum flask
CN207555526U (en) A kind of quick assembling lamp cap

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161228

Termination date: 20190416

CF01 Termination of patent right due to non-payment of annual fee