CN103170947A - Push-and-pull device for assembling and disassembling lamp - Google Patents
Push-and-pull device for assembling and disassembling lamp Download PDFInfo
- Publication number
- CN103170947A CN103170947A CN2011104302134A CN201110430213A CN103170947A CN 103170947 A CN103170947 A CN 103170947A CN 2011104302134 A CN2011104302134 A CN 2011104302134A CN 201110430213 A CN201110430213 A CN 201110430213A CN 103170947 A CN103170947 A CN 103170947A
- Authority
- CN
- China
- Prior art keywords
- push
- screw rod
- pull device
- fixed
- hangoff receptacle
- 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.)
- Granted
Links
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a push-and-pull device for assembling and disassembling a lamp. The push-and-pull device for assembling and disassembling the lamp comprises a clamp jaw, a supporting seat cylinder, a screw rod, a rotary handle and a hanging component with hanging tools replaceable. The upper end of the clamp jaw is hinged on an outer wall of the supporting seat cylinder. The screw rod is matched with the supporting seat cylinder in a threaded mode. The hanging component is hung at the lower end of the screw rod and is capable rotating around an axis of the screw rod. The replaceable hanging tools comprise a hook used for dragging and pulling, an ejection cone and an ejection rod, wherein the ejection cone and the ejection rod are used for pushing and pressing. The hanging component comprises a hanging seat. The lower end of the screw rod is connected with the upper portion of the hanging seat so that the screw rod is used for bearing pulling force or pushing force of the hanging seat. The lower portion of the hanging seat is capable of being connected with the upper portion of the hook so that the hanging seat is used for bearing pulling force of the hook. The lower portion of the hanging seat is further connected with the upper portion of the ejection cone or the ejection rod so that the hanging seat is used for bearing pushing force of the ejection cone or the ejection rod. The lower end of the screw rod is matched with the upper portion of the hanging seat in a reversed-T type and a rotary mode. The push-and-pull device for assembling and disassembling the lamp has the advantages of being capable of obviously improving opening speed of an explosion-proof lamp and reducing maintaining time of the lamp.
Description
Technical field
The present invention relates to lighting technical field, especially relate to a kind of rapid-maintenance instrument of light fixture.
Background technology
In the explosion-proof light field, the tight fit of cylindrical shape light fixture makes light fixture be difficult to open and safeguards light source.In order to improve the reliability of light fixture, the easy care problem more and more comes into one's own.Yet the servomechanism that also there is no supporting light fixture special use at present, manually pulling out the light fixture inner core need to more than 70 kgfs, increase the extra work amount of safeguarding.
The mating surface of explosion-proof lamp needs strictly to seal and coordinate closely, and lamp interior is subjected to high heat to produce negative pressure for a long time; The aging rear bonding possibility that increased of sealing ring; The factors such as the long-term corrosion of mating surface make the internal overhaul workload surprising.
Lack special-purpose instrument in the maintenance technique of existing light fixture, especially in the maintenance of IIC place explosion-proof lamp, lack the specific purpose tool of dismounting wick.
Summary of the invention
The technical problem to be solved in the present invention is: more difficult for the dismounting light fixture that above-mentioned existing light fixture maintenance technique exists, a kind of specific purpose tool that can reduce maintenance load is provided.
The present invention addresses the above problem the technical scheme that proposes to be: a kind of push-pull device at fixed of installing and removing light fixture comprises catching, bearing cylinder, screw rod, rotary handle; The upper end of described catching is hinged on the outer wall of bearing cylinder, and the endoporus of described bearing cylinder is provided with internal thread, and described screw rod is provided with the external screw thread that the internal thread with the bearing cylinder matches, and the rotary handle vertical with the axis of screw rod crossed on the top of screw rod; Described push-pull device at fixed also comprises the suspension assembly that can change hanging tool, and described suspension assembly is suspended on the lower end of screw rod and can rotates around the axis of screw rod.
In a preferred embodiment, the hanging tool that can change of described suspension assembly comprises hook for tractive, is used for addendum cone and the push rod of pushing.
In a preferred embodiment, described suspension assembly comprises hangoff receptacle; The lower end of screw rod is connected with the top of hangoff receptacle and is used for accepting pulling force or the thrust of hangoff receptacle; The bottom of hangoff receptacle can be connected with the top of hook and be used for accepting the pulling force of hook, and the bottom of hangoff receptacle can also be connected with the top of addendum cone or push rod and be used for accepting the thrust of addendum cone or push rod.
In a preferred embodiment, the lower end of described screw rod is the step cutting pattern shape of inverted T shape rotary body; The top of hangoff receptacle is provided with the step cutting pattern hole of the inverted T shape that the step cutting pattern with the screw rod lower end matches.
In a preferred embodiment, the bottom of described hangoff receptacle is provided with the T-shaped groove that hanging tool can be installed; The top of described hook is provided with the T-shaped rectangle step that the T-shaped groove with the hangoff receptacle bottom matches.
In a preferred embodiment, the both sides of the narrow section of the T-shaped groove of described hangoff receptacle bottom are respectively arranged with for the locating hole that elastic positioning member is installed, and two sides of the narrow section of the rectangle step on described hook top are provided with the positioning pit corresponding with elastic positioning member.
In a preferred embodiment, described hangoff receptacle comprises two somatotype bodies that are fixed as one by bolt-locking, and its die joint is through the axis in step cutting pattern hole and overlap with the cross section of T-shaped groove center.
In a preferred embodiment, described step cutting pattern hole is blind hole, and the die joint of the seat that is draped is divided into the semicircular step groove of two lower end closed.Described locating hole is blind hole, and the die joint of the seat that is draped is divided into the semicircular elongated slot of two outer end sealings.
In a preferred embodiment, the bottom of described catching is provided be used to the coupler body that catches on lamp casing; The lower surface of described catching is provided be used to the projection that is supported on the lamp casing end face or indenture.
Compared with prior art, adopt the advantage of technical scheme of the present invention to be: can significantly improve the opening speed of explosion-proof lamp, reduce the maintenance time of light fixture; Increase light fixture maintainable, avoided the client can't open because of light fixture the economic loss that can not keep in repair; By the Support Position of adjusting catching on the housing of light fixture, can satisfy the needs of different lamps dismounting.
Description of drawings
Fig. 1 is the structural representation that the present invention installs and removes the push-pull device at fixed embodiment of light fixture.
Fig. 2 is the schematic perspective view that the present invention installs and removes the push-pull device at fixed embodiment of light fixture.
Fig. 3 is the explosive view that the present invention installs and removes the push-pull device at fixed embodiment of light fixture.
Fig. 4 is the structural representation of the suspension assembly of the present invention push-pull device at fixed embodiment of installing and removing light fixture.
Fig. 5 is the explosive view of the suspension assembly of the present invention push-pull device at fixed embodiment of installing and removing light fixture.
Fig. 6 is that the present invention installs and removes the push-pull device at fixed embodiment of light fixture for the schematic diagram of dismounting explosion-proof lamp.
The specific embodiment
In order to make those skilled in the art person understand better technical scheme of the present invention, be described in further detail below in conjunction with drawings and Examples.
The present invention installs and removes the push-pull device at fixed of light fixture from drawing the slope of thread principle of horse, and the factors such as practical set environment in conjunction with special lamp have been integrated in a device with having adopted each Function in Order.The maintenance personal only needs turning handle, just can extract wick out 20CM with the power of 5 kilograms, completes and opens the most difficult step of light fixture.
The present invention install and remove light fixture push-pull device at fixed embodiment structure as shown in Figure 1, figure comprises catching 6, bearing cylinder 5, screw rod 4, rotary handle 3 and suspension assembly 7.Fig. 2 is the stereogram of embodiment, and Fig. 3 is the explosive view of embodiment.
In figure, the upper end of catching 6 is hinged on the hypomere of the outer wall of bearing cylinder 5 by bearing pin 8, the endoporus of bearing cylinder 5 is provided with the rectangle internal thread, and screw rod 4 is provided with the rectangle external screw thread that the internal thread with bearing cylinder 5 matches, and the rotary handle vertical with the axis of screw rod 43 crossed on the top of screw rod 4.Suspension assembly 7 is suspended on the lower end of screw rod 4 and can rotates around the axis of screw rod 4.The hanging tool that suspension assembly 7 can be changed comprises the hook 72 for tractive, and is used for addendum cone 75 and the push rod 76 of pushing.
The push-pull device at fixed embodiment of mounting or dismounting light fixture with the structural representation of hook 72 suspension assembly 7 as shown in Figure 4, suspension assembly 7 comprises hangoff receptacle 71, the lower end of screw rod 4 is connected with the top of hangoff receptacle 71 for pulling force or the thrust of accepting hangoff receptacle 71.The bottom of hangoff receptacle 71 can be connected with the top of hook 72 and be used for accepting the pulling force of hook 71, and the bottom of hangoff receptacle 71 can also be connected with the top of addendum cone 75 or push rod 76 and be used for accepting the thrust of addendum cone or push rod.Fig. 5 is the explosive view with the suspension assembly 7 of hook 72.
In figure, the lower end of screw rod 4 is the step cutting pattern 41 of inverted T shape rotary body; The top of hangoff receptacle 71 is provided with the round stepped hole 711 of the inverted T shape that the step cutting pattern 41 with screw rod 4 lower ends matches.Wherein hangoff receptacle 71 can be relative to rotating with pulling force screw rod 4 in 360 degree scopes.
The bottom of hangoff receptacle 71 is provided with the T-shaped groove 712 that hanging tool can be installed, and comprises the narrow groove 7122 of rectangle of rectangle sipes 7121 and rectangle sipes 7121 belows.Hook 72 top is provided with the T-shaped rectangle step 721 that the T-shaped groove 712 with hangoff receptacle 71 bottoms matches.The both sides of the narrow groove 7122 of the T-shaped groove 712 of hangoff receptacle 71 bottoms are respectively arranged with for the locating hole 713 that elastic positioning member 74 is installed, and two sides of the narrow section of the rectangle step 721 on hook 72 tops are provided with the positioning pit corresponding with elastic positioning member 74 722.
Hangoff receptacle 71 comprises two somatotype bodies that are locked and are integrated by bolt 73, and its die joint overlaps through the axis of circle stepped hole 711 and with the cross section at T-shaped groove 712 centers.Circle stepped hole 711 is blind hole, and the die joint of the seat 71 that is draped is divided into the semicircular step groove of two lower end closed.Locating hole 713 is also blind hole, and the die joint of the seat 71 that also is draped is divided into the semicircular elongated slot of two outer end sealings.Four angles of a somatotype body of hook base 71 are provided with screwed hole 714, and the correspondence of another somatotype body four angles are provided with bolt hole and and the counterbore 715 of through hole outer end receive bolts head.The step cutting pattern 41 of screw rod 4 lower ends in the time of two somatotype bodies of locking hangoff receptacle 71, is placed in two semicircular step grooves.74 of elasticity location groups comprise steel ball 741, spring 742; Steel ball 741, spring 742 are placed in two semicircular elongated slots in the time of two somatotype bodies of locking hangoff receptacle 71.
As shown in the figure, the two ends of the T-shaped groove 712 of hangoff receptacle 71 bottoms are sealing not, and the T-shaped rectangle step 721 on the top of hook 72 can insert in the T-shaped groove 712 of hangoff receptacle 71 bottoms.After being in place, steel ball 74 falls into positioning pit 722 chuckings on hook 72 tops automatically.After T-shaped rectangle step 721 inserts T-shaped groove 712, by 741 liang of point locations of spring 742 compressing steel balls, obtain relatively fixing.Retrieve and change hook 72 o'clock, need to release from the side hook 71, steel ball 741 will unclamp.
The bottom of catching 6 is provided be used to the coupler body 61 that catches on lamp casing; The lower surface of catching 6 is provided be used to the projection that is supported on the lamp casing end face or indenture.Catching 6 is three, is distributed on three directions of bearing cylinder 5 outer walls.To make the quiet pulling force of straight line during work, convenient and labor-saving, stable performance.
The embodiment of the push-pull device at fixed of mounting or dismounting light fixture is used for the dismounting explosion-proof lamp, as shown in Figure 6.With the mode that screw rod 4 spirals of trapezoidal thread are pulled out, the structure of pulling back that coordination hinge supports in three catchings 6 at the adjustable folding angle of bearing cylinder 5 outer wall bottoms.During use, adopt the lower surface of catching 6 to withstand the bead of lamp casing, the hook 72 of suspension assembly 7 is caught on handle ring or the cover of light fixture inner core and fixedly fasten, screw handle 3, the light fixture inner core can be pulled out.By the Support Position of adjusting catching 6 on the housing of light fixture, can satisfy the needs of different lamps dismounting.
If the push-pull device at fixed of mounting or dismounting light fixture will be replaced by for the hook 72 of tractive addendum cone or push rod for pushing, but also reverse operating reinstalls inner core in the housing of light fixture, similar common function of drawing horse.
The push-pull device at fixed that the present invention installs and removes light fixture has solved the problem of uncapping of the maintenance of special lamp effectively, and the inner core of the especially sealing cover of IIC class light fixture, and extraction light fixture is difficult problem comparatively.Light fixture increase the light fixture maintainability, thereby the economic loss of having avoided the client can't dismantle because of light fixture will be brought greatest benefit to the user by coordinating this device can significantly reduce the maintenance time of light fixture.
The present invention will improve the explosion-proof lamp opening speed, especially coordinate IIC place explosion-proof lamp maintenance to use, and adopt specialized designs, and performance and function have raising greatly.
The advantage that the present invention installs and removes the push-pull device at fixed of light fixture has: 1, size is little portable, but the scope of application is large, is suitable for all cylindrical parts light fixtures of diameter 50mm~4mm scope; 2, there are various catchings 6 to match, are matched with various flange beads; 3, adopt the helical rotation of screw rod 4, the pulling force of generation is large, and good reliability is to do the quiet pulling force of straight line, convenient and labor-saving, stable performance during work.
Foregoing is only preferred embodiment of the present invention, is not the present invention is carried out the scope restriction.Those skilled in the art can carry out corresponding flexible or modification very easily according to main design of the present invention and spirit.Therefore protection scope of the present invention should be as the criterion with the covering scope of claim.
Claims (9)
1. a push-pull device at fixed of installing and removing light fixture, comprise catching, bearing cylinder, screw rod, rotary handle; The upper end of described catching is hinged on the outer wall of bearing cylinder, and the endoporus of described bearing cylinder is provided with internal thread, and described screw rod is provided with the external screw thread that the internal thread with the bearing cylinder matches, and the rotary handle vertical with the axis of screw rod crossed on the top of screw rod; It is characterized in that, described push-pull device at fixed also comprises the suspension assembly that can change hanging tool, and described suspension assembly is suspended on the lower end of screw rod and can rotates around the axis of screw rod.
2. according to push-pull device at fixed claimed in claim 1, it is characterized in that, the hanging tool that described suspension assembly can be changed comprises hook for tractive, is used for addendum cone and the push rod of pushing.
3. according to push-pull device at fixed claimed in claim 2, it is characterized in that, described suspension assembly comprises hangoff receptacle; The lower end of screw rod is connected with the top of hangoff receptacle and is used for accepting pulling force or the thrust of hangoff receptacle; The bottom of hangoff receptacle can be connected with the top of hook and be used for accepting the pulling force of hook, and the bottom of hangoff receptacle can also be connected with the top of addendum cone or push rod and be used for accepting the thrust of addendum cone or push rod.
4. according to push-pull device at fixed claimed in claim 3, it is characterized in that, the lower end of described screw rod is the step cutting pattern shape of inverted T shape rotary body; The top of hangoff receptacle is provided with the step cutting pattern hole of the inverted T shape that the step cutting pattern with the screw rod lower end matches.
5. according to push-pull device at fixed claimed in claim 4, it is characterized in that, the bottom of described hangoff receptacle is provided with the T-shaped groove that hanging tool can be installed; The top of described hook is provided with the T-shaped rectangle step that the T-shaped groove with the hangoff receptacle bottom matches.
6. according to push-pull device at fixed claimed in claim 5, it is characterized in that, the both sides of the narrow section of the T-shaped groove of described hangoff receptacle bottom are respectively arranged with for the locating hole that elastic positioning member is installed, and two sides of the narrow section of the rectangle step on described hook top are provided with the positioning pit corresponding with elastic positioning member.
7. according to push-pull device at fixed claimed in claim 5, it is characterized in that, described hangoff receptacle comprises two somatotype bodies that are fixed as one by bolt-locking, and its die joint is through the axis in step cutting pattern hole and overlap with the cross section of T-shaped groove center.
8. according to push-pull device at fixed claimed in claim 5, it is characterized in that, described step cutting pattern hole is blind hole, and the die joint of the seat that is draped is divided into the semicircular step groove of two lower end closed: described locating hole is blind hole, and the die joint of the seat that is draped is divided into the semicircular elongated slot of two outer end sealings.
9. according to push-pull device at fixed claimed in claim 5, it is characterized in that, the bottom of described catching is provided be used to the coupler body that catches on lamp casing; The lower surface of described catching is provided be used to the projection that is supported on the lamp casing end face or indenture.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110430213.4A CN103170947B (en) | 2011-12-20 | 2011-12-20 | The push-pull device at fixed of mounting or dismounting light fixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110430213.4A CN103170947B (en) | 2011-12-20 | 2011-12-20 | The push-pull device at fixed of mounting or dismounting light fixture |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103170947A true CN103170947A (en) | 2013-06-26 |
CN103170947B CN103170947B (en) | 2016-01-13 |
Family
ID=48631366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110430213.4A Expired - Fee Related CN103170947B (en) | 2011-12-20 | 2011-12-20 | The push-pull device at fixed of mounting or dismounting light fixture |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103170947B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481869A (en) * | 2015-08-27 | 2017-03-08 | 湖北兴瑞化工有限公司 | A kind of valve booster and its using method |
CN107838864A (en) * | 2017-12-08 | 2018-03-27 | 安徽安凯汽车股份有限公司 | A kind of car steering wheel plumbing arm extraction mechanism |
CN107962526A (en) * | 2017-11-23 | 2018-04-27 | 重庆思御科技有限公司 | A kind of new stiff sheet pull-up |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB370794A (en) * | 1931-08-24 | 1932-04-14 | Max Schaefer | Improvements in or relating to wheel pullers and the like tools |
CN2094416U (en) * | 1990-10-11 | 1992-01-29 | 内江市工具厂 | Top puller |
CN2134264Y (en) * | 1992-07-21 | 1993-05-26 | 张师云 | Hydraulic hook |
CN2215385Y (en) * | 1994-12-30 | 1995-12-20 | 张宏祥 | Rotary pressure-incresing wheel drawing device |
CN2247584Y (en) * | 1995-11-09 | 1997-02-19 | 孟令松 | Hydraulic self-clamp device for detaching wheel |
JPH10266119A (en) * | 1997-03-24 | 1998-10-06 | Hokkaido Supiritsuton Kogyo Kk | Pulling method for block |
CN2501649Y (en) * | 2001-10-18 | 2002-07-24 | 石油大学(华东) | Novel extractor |
DE202004008523U1 (en) * | 2004-05-28 | 2004-07-29 | Hung, Chih Kuo | Triple claw tool for pulling and lifting workpiece has three arms with hooked ends on hinged linkage actuated by wing nut on spindle |
CN201940960U (en) * | 2011-03-04 | 2011-08-24 | 文登威力高档工具有限公司 | Automatic clamping puller |
-
2011
- 2011-12-20 CN CN201110430213.4A patent/CN103170947B/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB370794A (en) * | 1931-08-24 | 1932-04-14 | Max Schaefer | Improvements in or relating to wheel pullers and the like tools |
CN2094416U (en) * | 1990-10-11 | 1992-01-29 | 内江市工具厂 | Top puller |
CN2134264Y (en) * | 1992-07-21 | 1993-05-26 | 张师云 | Hydraulic hook |
CN2215385Y (en) * | 1994-12-30 | 1995-12-20 | 张宏祥 | Rotary pressure-incresing wheel drawing device |
CN2247584Y (en) * | 1995-11-09 | 1997-02-19 | 孟令松 | Hydraulic self-clamp device for detaching wheel |
JPH10266119A (en) * | 1997-03-24 | 1998-10-06 | Hokkaido Supiritsuton Kogyo Kk | Pulling method for block |
CN2501649Y (en) * | 2001-10-18 | 2002-07-24 | 石油大学(华东) | Novel extractor |
DE202004008523U1 (en) * | 2004-05-28 | 2004-07-29 | Hung, Chih Kuo | Triple claw tool for pulling and lifting workpiece has three arms with hooked ends on hinged linkage actuated by wing nut on spindle |
CN201940960U (en) * | 2011-03-04 | 2011-08-24 | 文登威力高档工具有限公司 | Automatic clamping puller |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481869A (en) * | 2015-08-27 | 2017-03-08 | 湖北兴瑞化工有限公司 | A kind of valve booster and its using method |
CN106481869B (en) * | 2015-08-27 | 2018-12-14 | 湖北兴瑞硅材料有限公司 | A kind of valve booster and its application method |
CN107962526A (en) * | 2017-11-23 | 2018-04-27 | 重庆思御科技有限公司 | A kind of new stiff sheet pull-up |
CN107962526B (en) * | 2017-11-23 | 2023-11-17 | 爱化身科技(北京)有限公司 | Novel hard sheet pulling device |
CN107838864A (en) * | 2017-12-08 | 2018-03-27 | 安徽安凯汽车股份有限公司 | A kind of car steering wheel plumbing arm extraction mechanism |
Also Published As
Publication number | Publication date |
---|---|
CN103170947B (en) | 2016-01-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103170947A (en) | Push-and-pull device for assembling and disassembling lamp | |
CN205712805U (en) | A kind of color steel tile roof attachments of solar energy photovoltaic panel | |
CN103527608B (en) | Bolt anti-rotation device and mounting method of bolt pair | |
CN104728928A (en) | Indoor unit of air conditioner | |
CN103170944A (en) | Lamp push-and-pull device and hook assembly thereof | |
CN102797980A (en) | Portable lamp | |
CN108692222A (en) | Wall lamp | |
CN201672471U (en) | Rotatable lamp cap | |
CN116480988A (en) | Lamp convenient for overhauling | |
CN103672672A (en) | Lamp | |
CN205690229U (en) | LED ceiling spotlight | |
CN206176194U (en) | Disconnect -type ceiling fan lamp | |
CN212987008U (en) | Detachable floodlight LED lamp | |
JPH09155656A (en) | Nut rotating device and assembly method | |
CN203442598U (en) | Work lamp | |
CN202221021U (en) | Multi-angle rotary embedded lamp | |
CN216897170U (en) | GU10 bulb mounting mechanism | |
CN201166340Y (en) | Explosion-proof lamp | |
CN202040706U (en) | Illuminating ceiling lamp | |
CN206527683U (en) | A kind of oil pump frock clamping device | |
CN205746653U (en) | A kind of suspended table lamp | |
CN205852195U (en) | A kind of device for installing common rail pump fixed cover | |
CN205618410U (en) | Draught fan | |
CN218295481U (en) | Structure is dismantled in quick installation of ceiling lamp | |
CN207298587U (en) | A kind of energy conservation and environmental protection lighting apparatus |
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: 20160113 Termination date: 20181220 |
|
CF01 | Termination of patent right due to non-payment of annual fee |