CN204534289U - A kind of advertising lamp - Google Patents

A kind of advertising lamp Download PDF

Info

Publication number
CN204534289U
CN204534289U CN201520101358.3U CN201520101358U CN204534289U CN 204534289 U CN204534289 U CN 204534289U CN 201520101358 U CN201520101358 U CN 201520101358U CN 204534289 U CN204534289 U CN 204534289U
Authority
CN
China
Prior art keywords
coupling
nipple
hole
fluorescent tube
advertising lamp
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
CN201520101358.3U
Other languages
Chinese (zh)
Inventor
李高
黄漄静
黄用国
陈桂成
田阳
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.)
Guangzhou Ledia Lighting Co Ltd
Original Assignee
Guangzhou Ledia Lighting Technology 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 Guangzhou Ledia Lighting Technology Co Ltd filed Critical Guangzhou Ledia Lighting Technology Co Ltd
Priority to CN201520101358.3U priority Critical patent/CN204534289U/en
Application granted granted Critical
Publication of CN204534289U publication Critical patent/CN204534289U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The utility model discloses a kind of advertising lamp, comprise support and fluorescent tube assembly; Support comprises fixture and bindiny mechanism; Described fixture comprises lamp box and fixation clip, and fixation clip is connected on lamp box by connector, is formed with holding tank between fixation clip and lamp box; Bindiny mechanism connects on the securing means; Described fluorescent tube assembly comprises push pipe seat and fluorescent tube; Described tube face comprises nipple and coupling, coupling is enclosed within outside nipple, nipple can rotate relative to coupling, bindiny mechanism is fixed in coupling, stopper slot is provided with in the radial direction at nipple, also comprise locating part relatively-stationary with coupling position, locating part stretches into stopper slot; Described fluorescent tube is connected on nipple.Structure of the present utility model is easy for installation and removal advertising lamp, can regulate the rising angle of fluorescent tube.

Description

A kind of advertising lamp
Technical field
The utility model relates to advertising lamp.
Background technology
Because LED has the advantages such as energy-conservation, light efficiency is high, the life-span is long, LED lamp instead of traditional light fixture gradually.For existing advertising lamp, it is fixing is all utilize bolt or suspending way, makes the fixing inconvenience of advertising lamp, and after advertising lamp fixes, its light direction is just fixed, and cannot adjust the bright dipping of advertising lamp as required, and the scope applied is restricted.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of advertising lamp.
The technical scheme solved the problems of the technologies described above is: a kind of advertising lamp, comprises support and fluorescent tube assembly; Support comprises fixture and bindiny mechanism; Described fixture comprises lamp box and fixation clip, and fixation clip is connected on lamp box by connector, is formed with holding tank between fixation clip and lamp box; Bindiny mechanism connects on the securing means; Described fluorescent tube assembly comprises push pipe seat and fluorescent tube; Described tube face comprises nipple and coupling, coupling is enclosed within outside nipple, nipple can rotate relative to coupling, bindiny mechanism is fixed in coupling, stopper slot is provided with in the radial direction at nipple, also comprise locating part relatively-stationary with coupling position, locating part stretches into stopper slot; Described fluorescent tube is connected on nipple.
Said structure, before installing advertisement lamp, first fixes a bearing support, and this bearing support is by support and buckle plate and form.When installing advertisement lamp, first unclamp connector, allow holding tank open, allow buckling plate and be inserted in holding tank, then, locking connector, allow fixation clip and lamp box clamp and buckle plate, realize the installation of advertising lamp, like this, not only be easy for installation and removal advertising lamp, and the fixation of advertising lamp, reliable.Owing to being realized the connection between bindiny mechanism and fluorescent tube by tube face of the present utility model, and tube face is made up of coupling and nipple, nipple can rotate relative to coupling, like this, when fixture and bindiny mechanism and coupling fixing, fluorescent tube can be allowed to follow by rotating nipple and rotate together, therefore, the convenient light direction regulating fluorescent tube, makes the wider general of use.Owing to being provided with stopper slot and locating part, therefore, nipple can not only be allowed to rotate, and the angle of nipple rotation can be controlled.
Further, the flanging that described fixation clip comprises plate body and upwards turns down from plate body edge; Plate body is provided with at least one row's group of bumps, and described group of bumps comprises more than two salient points to lower convexity.Described flanging can improve the intensity of fixation clip, makes fixation clip be not easy distortion, thus improves chucking power; Owing to being provided with salient point, like this, when utilizing fixation clip and the clamping of lamp box buckles plate, salient point can act directly on and buckle on plate, and advertising lamp is not easy landing, further increases the fixing fastness of advertising lamp.
Further, described connector is screw.
Further, described bindiny mechanism is fixed with respectively at the two ends of lamp box; Described bindiny mechanism comprises fixed leg and connecting rod; Fixed leg is fixed on lamp box; The periphery of connecting rod one end is provided with cannelure, and the connecting rod end with cannelure extend in fixed leg, and fixed leg is provided with axial limiting screw, and axial limiting screw extend in cannelure; The other end of joint pin is connected in coupling.Utilize the bindiny mechanism of this structure, fluorescent tube can be allowed to be in suspension status, avoid fluorescent tube bright dipping to be blocked; Owing to being provided with cannelure and stop screw, like this, utilize stop screw can carry out axial location to connecting rod, can prevent on the one hand connecting rod to slip away fixed leg, conveniently connecting rod is installed on the other hand.
Further, what connecting rod slided is provided with support column, and support column is provided with the lock-screw be applied on connecting rod; The lower surface of support column is bearing-surface.Described bearing-surface is bearing in and buckles on plate, and like this, buckle after on plate when fixture is fixed to, support column forms a supporting-point, and when fluorescent tube is in suspension status, whole advertising lamp is not easy to rotate, and makes the fixing more reliable of advertising lamp.
Further, described coupling has the accommodating hole extended from an end face axial, has step accommodating hole in accommodating hole; Coupling has radial extend and the through hole communicated with accommodating hole, through hole stretches into for bindiny mechanism; Described nipple comprises link and is connected to the installation end on link one end face, and the external diameter of link is greater than the external diameter of installation end, and installation end is engaged in accommodating through hole, and link is engaged in step accommodating hole, and described stopper slot is located on installation end; Described locating part is connected in the bindiny mechanism that extend in through hole.This structure, when installation end is engaged in accommodating through hole, link is engaged in step accommodating hole, then coupling and nipple energy axial limiting, make interior coupling easier for installation, use more reliable.
Further, installation end is provided with locating slot, locating slot overlaps flexible circle, elastic ring contacts with the accommodating hole hole wall of coupling.Owing to being provided with elastic ring, when nipple rotates relative to coupling, the feel of rotation is better, and noise is little.
Further, described fluorescent tube comprises lamp socket, lampshade and LED light source; Lamp socket comprises the housing that cross section is arc and the lamp pearl plate be located in housing, and lamp pearl plate is provided with slot, and the limit, two opposite sides of slot has the groove being less than slot side height, and two relative edges of housing are inwardly formed with buckle; Two relative edges of lampshade have first extend internally after outward extending fastening part, the outer side edges of fastening part forms draw-in groove, and buckle holding is in draw-in groove; Described LED light source comprises substrate and is located at the LED on substrate, and substrate is plugged in slot, the side of substrate and the contact aside of slot.In the structure shown here, be buckled in lampshade on lamp socket, make the fixing more firm of lampshade.Owing to being provided with groove, like this, the contact area of substrate and slot side is little, reduces the frictional force of substrate and slot side, and like this, be easy for installation and removal LED light source.
Further, lamp socket is fixed on link, and the position corresponding with lampshade at link is provided with shield bars, and shield bars is positioned at lampshade.When manufacturing advertising lamp, be difficult to ensure the gap between lampshade and link, therefore, the part light that LED light source sends is easy to expose between lampshade and link, and for solving this technical problem, the utility model is provided with the shield bars of said structure and position.
Further, the inwall of coupling is provided with the crossed beam trunking communicated with through hole, to facilitate at the inner cabling of advertising lamp.
Accompanying drawing explanation
Fig. 1 is the stereogram of advertising lamp.
Fig. 2 is the exploded view of advertising lamp.
Fig. 3 is the enlarged drawing of A in Fig. 2.
Fig. 4 is the schematic diagram of fixation clip.
Fig. 5 is the schematic diagram at another visual angle of fixation clip.
Fig. 6 is the schematic diagram be installed to by advertising lamp on bearing support.
Fig. 7 is the enlarged drawing of B in Fig. 2.
Fig. 8 is the decomposing schematic representation of tube face.
Fig. 9 is the schematic diagram of coupling.
Figure 10 is the schematic diagram at another visual angle of coupling.
Figure 11 is the schematic diagram of nipple.
Figure 12 is the schematic diagram at another visual angle of nipple.
Figure 13 is the schematic diagram of fluorescent tube.
Figure 14 is the exploded view of fluorescent tube.
Figure 15 is the side schematic view after fluorescent tube decomposes.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
As depicted in figs. 1 and 2, advertising lamp comprises support 1000 and fluorescent tube assembly 2000.
As depicted in figs. 1 and 2, described support 1000 comprises fixture 10 and bindiny mechanism 100.
As depicted in figs. 1 and 2, described fixture 10 comprises lamp box 11 and fixation clip 12.As shown in Figures 2 and 3, lamp box 11 comprises lower box body 111 and upper cover 112; Two relatively short sides of lower box body 111 bend inwards and form bending edge 1111, and to improve the intensity of lower box body 111, be provided with string holes in the bottom of lower box body 111, be provided with water joint 113 in string holes, water joint 113 is through there being power line 114; In lower box body 111, be provided with power supply 115, one end and the power supply 115 of power line 114 are electrically connected.Described upper cover 112 covers on lower box body 111, and upper cover 112 has flanging 1121, fixes lower box body 111 and upper cover 112 by screw through flanging 1121 and lower box body side.The two ends of upper cover 112 are provided with installing hole 1122, have been upward through bolt 116 through installing hole 1122.As shown in Figures 2 to 5, the flanging 122 that described fixation clip 12 comprises plate body 121 and upwards turns down from plate body 121 edge; Plate body 121 is provided with at least one row's group of bumps, and described group of bumps comprises more than two salient points 1211 to lower convexity, and this salient point 1211 is shaping by Pressing Deformation; Plate body 121 is provided with bar hole 1212, connector 117 is connected the connection realizing fixation clip 12 and lamp box 11 with the upper cover 112 of lamp box 11 through bar hole 1212, described connector 117 is screw preferably, owing to being provided with bar hole, therefore, after being connected to screw, fixation clip 12 also can move relative to lamp box 11, realizes fine position between the two.Holding tank is formed between fixation clip 12 and lamp box 11, as shown in Figure 6, advertising lamp is installed on bearing support 3000, wherein bearing support 3000 comprises support 3001 and buckle hanging unit 3002, when advertising lamp is mounted well, be fixed pressing plate 12 and lamp box 11 of buckle hanging unit 3002 clamps, and utilize salient point 1211 to act in buckle hanging unit 3002, like this, can effectively prevent bearing support 3000 and fixture from departing from, described holding tank is used for accommodating buckle hanging unit 3002, be convenient to installing advertisement lamp, work as adjustment screw, the then width of adjustable holding groove, install with the buckle hanging unit of applicable different-thickness.
As depicted in figs. 1 and 2, described bindiny mechanism comprises 100 and comprises fixed leg 101, connecting rod 102 and support column 103.Be respectively equipped with described fixed leg 101 at the two ends of lamp box 11, and fixed leg 101 is fixed on bolt 116, utilize the fixed leg 101 that is threaded, be easy for installation and removal fixed leg 101; The radial installing hole 1011 extended is provided with in the upper end of fixed leg 101.Connecting rod 102 is cylindrical, and one end periphery of connecting rod 102 is provided with cannelure 1021, and the other end of connecting rod 102 has the smaller step section 1022 of diameter, and the end face of step section is provided with locating part 106; The connecting rod one end being provided with cannelure extend in installing hole 1011; Fixed leg 101 is provided with stop screw 104, and one end holding of stop screw 104, in cannelure 1021, to carry out axial limiting to connecting rod 102, after stop screw 104 is locked, can prevent connecting rod 102 unexpected disengaging fixed leg 101.The middle part of support column 103 is provided with the radial perforation 1031 extended, the lower surface of support column is bearing-surface, connecting rod 102 is through perforation 1031, support column 103 relative to connecting rod 102 slidably, to regulate position between the two, support column 103 is provided with lock-screw 105, after position adjustments between support column 103 and connecting rod 102 is good, tighten lock-screw 105, allow lock-screw be applied on connecting rod 102, prevent from moving between support column 103 and connecting rod 102.As shown in Figure 6, after utilizing fixture that advertising lamp is installed to bearing support 3000, the bearing-surface of support column 103 be bearing in buckle plate 3002 upper surface on, like this, advertising lamp be not easy upset, the installation reliability of advertising lamp can be improved.In addition, the position of support column 103 can be adjusted according to the bearing area buckling plate 3002, make support column 103 have better bearing performance.
As depicted in figs. 1 and 2, described fluorescent tube assembly 2000 comprises tube face 20 and fluorescent tube 200.
As shown in Fig. 2 and Tu and Fig. 8, described tube face 20 comprises coupling 21, nipple 22 and elastic ring 23.
As shown in Figure 9 and Figure 10, described coupling 21 has the accommodating hole 211 extended from an end face axial, has step accommodating hole 212 in accommodating hole 211; Coupling 21 has radial extend and the through hole 213 communicated with accommodating hole 211, in the outer end of through hole 213, there is stepped hole 214, through hole 213 is for the step section 1022 of connecting rod of planting, the part of connecting rod is contained in stepped hole 214, utilize the cooperation of ledge structure, the spacing effect of axis can be played to connecting rod 102 and coupling.The inwall of coupling 21 is provided with the crossed beam trunking 215 communicated with through hole, and power line and holding wire are electrically connected through crossed beam trunking 215 and fluorescent tube 200 after connecting rod 102 passes.
As is illustrated by figs. 11 and 12, described nipple 22 comprises link 221 and is connected to the installation end 222 on link 221 1 end face, the external diameter of link 221 is greater than the external diameter of installation end 222, and the end face of link 221 is provided with the shield bars 2211 corresponding with lampshade position; Installation end 222 is provided with stopper slot 2221, installation end 222 is provided with locating slot 2222; Installation end 222 cooperation is inserted in accommodating through hole 211, make stopper slot 2221 corresponding with locating part 106, after advertising lamp installs, locating part 106 extend in stopper slot 2221, and link 221 cooperation is stretched in step accommodating hole 212, when nipple 22 rotates, due to locating part 106 coupling 21 invariant position relatively, and locating part 106 is inserted in stopper slot 2221, therefore, the anglec of rotation of nipple 22 can be limited.Locating slot 2222 overlaps flexible circle 23, described elastic ring preferred rubber circle, elastic ring 23 contacts with the accommodating through hole 211 hole hole wall of coupling 21; When nipple 22 rotates relative to coupling 21, the feel of rotation is better, and noise is little.
As shown in FIG. 13 to 15, described fluorescent tube 200 comprises lamp socket 201, lampshade 202 and LED light source 203; Lamp socket 201 comprises the housing 2011 that cross section is arc and the lamp pearl plate 2012 be located in housing 2011, lamp pearl plate 2012 is provided with slot 2013, the limit, two opposite sides of slot 2013 has the groove 2014 being less than slot side height, and two relative edges of housing 2011 are inwardly formed with buckle 2015; Two relative edges of lampshade 202 have first extend internally after outward extending fastening part 2021, the outer side edges of fastening part 2021 forms draw-in groove 2022, and buckle 2015 holding is in draw-in groove 2022; Described LED light source 203 comprises substrate 2031 and is located at the LED 2032 on substrate 2031, and substrate 2031 is plugged in slot 2013, the side of substrate 2031 and the contact aside of slot 2013.In the structure shown here, be buckled in lampshade 202 on lamp socket 201, make the fixing more firm of lampshade 202.Owing to being provided with groove 2014, like this, substrate 2031 is little with the contact area of slot 2013 side, and reduce the frictional force of substrate and slot side, like this, be easy for installation and removal LED light source.Described shield bars 2211 is positioned at lampshade 202, and the part light that LED light source sends is not easy to expose between lampshade 202 and link, improves the utilization rate of light.
As shown in Figure 6, when installing advertisement lamp, first unclamp screw, allow holding tank open, allow and buckle plate 3002 and be inserted in holding tank, then, lock-screw, allows fixation clip 12 and lamp box 11 clamp and buckles plate 3002, realize the installation of advertising lamp, like this, be not only easy for installation and removal advertising lamp, and the fixation of advertising lamp, reliable.Owing to being realized the connection between bindiny mechanism 100 and fluorescent tube 200 by tube face 20 of the present utility model, and tube face 20 is made up of coupling 21 and nipple 22, nipple 22 can rotate relative to coupling 21, like this, when fixture 10 and bindiny mechanism 100 and coupling 21 fixing, fluorescent tube 200 can be allowed to follow by rotating nipple 22 and rotate together, therefore, the convenient light direction regulating fluorescent tube 200, makes the wider general of use.

Claims (10)

1. an advertising lamp, is characterized in that: comprise support and fluorescent tube assembly; Support comprises fixture and bindiny mechanism; Described fixture comprises lamp box and fixation clip, and fixation clip is connected on lamp box by connector, is formed with holding tank between fixation clip and lamp box; Bindiny mechanism connects on the securing means; Described fluorescent tube assembly comprises push pipe seat and fluorescent tube; Described tube face comprises nipple and coupling, coupling is enclosed within outside nipple, nipple can rotate relative to coupling, bindiny mechanism is fixed in coupling, stopper slot is provided with in the radial direction at nipple, also comprise locating part relatively-stationary with coupling position, locating part stretches into stopper slot; Described fluorescent tube is connected on nipple.
2. advertising lamp according to claim 1, is characterized in that: the flanging that described fixation clip comprises plate body and upwards turns down from plate body edge; Plate body is provided with at least one row's group of bumps, and described group of bumps comprises more than two salient points to lower convexity.
3. advertising lamp according to claim 1, is characterized in that: described connector is screw.
4. advertising lamp according to claim 1, is characterized in that: be fixed with described bindiny mechanism respectively at the two ends of lamp box; Described bindiny mechanism comprises fixed leg and connecting rod; Fixed leg is fixed on lamp box; The periphery of connecting rod one end is provided with cannelure, and the connecting rod end with cannelure extend in fixed leg, and fixed leg is provided with axial limiting screw, and axial limiting screw extend in cannelure; The other end of joint pin is connected in coupling.
5. advertising lamp according to claim 4, is characterized in that: that slides on connecting rod is provided with support column, and support column is provided with the lock-screw be applied on connecting rod; The lower surface of support column is bearing-surface.
6. advertising lamp according to claim 1, is characterized in that: described coupling has the accommodating hole extended from an end face axial, has step accommodating hole in accommodating hole; Coupling has radial extend and the through hole communicated with accommodating hole, through hole stretches into for bindiny mechanism; Described nipple comprises link and is connected to the installation end on link one end face, and the external diameter of link is greater than the external diameter of installation end, and installation end is engaged in accommodating through hole, and link is engaged in step accommodating hole, and described stopper slot is located on installation end; Described locating part is connected in the bindiny mechanism that extend in through hole.
7. advertising lamp according to claim 6, is characterized in that: on installation end, be provided with locating slot, locating slot overlaps flexible circle, and elastic ring contacts with the accommodating through hole hole wall of coupling.
8. advertising lamp according to claim 6, is characterized in that: described fluorescent tube comprises lamp socket, lampshade and LED light source; Lamp socket comprises the housing that cross section is arc and the lamp pearl plate be located in housing, and lamp pearl plate is provided with slot, and the limit, two opposite sides of slot has the groove being less than slot side height, and two relative edges of housing are inwardly formed with buckle; Two relative edges of lampshade have first extend internally after outward extending fastening part, the outer side edges of fastening part forms draw-in groove, and buckle holding is in draw-in groove; Described LED light source comprises substrate and is located at the LED on substrate, and substrate is plugged in slot, the side of substrate and the contact aside of slot.
9. advertising lamp according to claim 8, is characterized in that: lamp socket is fixed on link, and the position corresponding with lampshade at link is provided with shield bars, and shield bars is positioned at lampshade.
10. advertising lamp according to claim 6, is characterized in that: on the inwall of coupling, be provided with the crossed beam trunking communicated with through hole.
CN201520101358.3U 2015-02-12 2015-02-12 A kind of advertising lamp Expired - Fee Related CN204534289U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520101358.3U CN204534289U (en) 2015-02-12 2015-02-12 A kind of advertising lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520101358.3U CN204534289U (en) 2015-02-12 2015-02-12 A kind of advertising lamp

Publications (1)

Publication Number Publication Date
CN204534289U true CN204534289U (en) 2015-08-05

Family

ID=53748291

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520101358.3U Expired - Fee Related CN204534289U (en) 2015-02-12 2015-02-12 A kind of advertising lamp

Country Status (1)

Country Link
CN (1) CN204534289U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104696822A (en) * 2015-02-12 2015-06-10 广州市莱帝亚照明科技有限公司 LED advertising lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104696822A (en) * 2015-02-12 2015-06-10 广州市莱帝亚照明科技有限公司 LED advertising lamp
CN104696822B (en) * 2015-02-12 2017-05-03 广州市莱帝亚照明科技有限公司 LED advertising lamp

Similar Documents

Publication Publication Date Title
CN106369497B (en) A kind of lamps and lanterns
CN105135296B (en) Fast-assembling ceiling lamp
CN204534289U (en) A kind of advertising lamp
CN204114647U (en) Rotatable lamp holder and rotating light tube
CN205372347U (en) Automobile -used LED headlight
CN204829576U (en) Fixed LED lamps and lanterns of centre gripping
CN104696822A (en) LED advertising lamp
CN105114916A (en) Mounting structure for light incidence end face of automobile light guide bar
CN208750495U (en) A kind of arm connection component freely adjusting angle
CN208418371U (en) A kind of track lamp mounting base
CN208967628U (en) A kind of downlight being easily installed
CN204534456U (en) A kind of advertising lamp lamp holder for tube
CN103363327B (en) Light fixture
CN202274436U (en) Lamp holder mounting structure for spotlight
CN202101185U (en) Studio lamp bracket mounting device
CN204534463U (en) A kind of advertising lamp coupling
CN210624476U (en) Line ball subassembly, lamps and lanterns base and lamps and lanterns
CN204127763U (en) A kind of LED height canopy lamp
CN204806085U (en) Projecting lamp
CN204358662U (en) Novel mounting structure tube stand
CN209084586U (en) Convenient for the lamps and lanterns of assembling
CN207486717U (en) A kind of lens carrier
CN209839754U (en) Lighting lamp and bulb structure thereof
CN202629665U (en) Conveniently-mounted lamp structure
CN205535447U (en) Plug -in type street lamp device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP03 Change of name, title or address

Address after: 510800 Guangzhou, Huadu District, Huadu District, Guangdong, SAST Road, No. 1, room No. 302

Patentee after: GUANGZHOU LEDIA LIGHTING Co.,Ltd.

Address before: 510800 Guangdong, Huadu District, Xinhua Street, commercial road, room No. 350, room 1, No.

Patentee before: GUANGZHOU LEDIA LIGHTING TECHNOLOGY Co.,Ltd.

CP03 Change of name, title or address
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150805

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