CN115789583B - Detachable portable lighting device - Google Patents
Detachable portable lighting device Download PDFInfo
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- CN115789583B CN115789583B CN202310061603.1A CN202310061603A CN115789583B CN 115789583 B CN115789583 B CN 115789583B CN 202310061603 A CN202310061603 A CN 202310061603A CN 115789583 B CN115789583 B CN 115789583B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a detachable portable lighting device which comprises a top plate, wherein a shell is arranged at the edge of the bottom of the top plate, a rotating handle is rotatably arranged at the middle position of the top plate, a first gear is arranged at the bottom of the rotating handle, threaded rods are arranged on two sides of the bottom of the top plate, and fourth gears are arranged at the tops of the outer sides of the two groups of threaded rods. According to the invention, the connecting components are arranged on the two sides of the lamp holder, so that the clamping rod can be separated from the inside of the clamping groove under the pushing of the wedge-shaped block, the limit of the clamping rod is released, the lamp holder can be rotated at the moment, the T-shaped connecting rod and the T-shaped sliding groove slide mutually, the T-shaped connecting rod is rotated to the jack, the clamping rod is moved to the extreme end of the slot, the lamp holder can be moved downwards at the moment, the T-shaped connecting rod is separated from the inside of the jack, the clamping rod is separated from the inside of the slot, the lamp holder is detached, and the illuminating lamp in the lamp holder can be replaced and cleaned.
Description
Technical Field
The invention relates to the technical field of lighting devices, in particular to a detachable portable lighting device.
Background
The mine is a generic term for forming a roadway, a chamber, equipment, a ground building and a structure of an underground coal mine production system, and inclined shafts, galleries and the like in underground development of the mine are sometimes also called as mines, and determination of the size of a well Tian Fanwei, the production capacity and the service life of each mine is one of key problems which must be solved in the self design of the mine.
However, the prior lighting device has certain defects when in use:
1. when the lighting device is used, the lighting device is fixedly installed in the mine because the lighting device is simple in structure, and poor contact can occur in the lighting device because of large dust in the mine, and even a large amount of dust enters the lighting device, so that the lighting device is poor in lighting effect.
2. Meanwhile, when the lighting device is used, a large amount of heat can be generated in the lighting device, the heat can be collected in the lighting device, ageing and cracking of a circuit of the lighting device can be caused, short circuit or short circuit of the gold of the circuit can be caused, and even accidental combustion of the lighting device can be caused.
3. When the lighting device is idle, the bulbs of the general lighting device are exposed outside the shell, so that the lighting device can wear the glass cover during transportation and installation, and meanwhile, the glass cover and the bulbs are easy to crack due to collision of the outside.
Disclosure of Invention
The present invention is directed to a detachable portable lighting apparatus, which solves the above-mentioned problems associated with the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: can dismantle lightweight lighting device, which comprises a top plate, the edge of roof bottom is provided with the shell, the intermediate position department of roof top rotates and is provided with the rotating handle, the bottom of rotating handle is provided with first gear, the both sides of roof bottom are provided with the threaded rod, two sets of the top in the threaded rod outside is provided with the fourth gear, two sets of the outside cover of fourth gear and first gear is equipped with the hold-in range, two sets of threaded rod outside threaded connection has the mounting panel, two sets of the bottom of threaded rod is provided with the second gear, the both ends of shell inside are provided with ventilative subassembly, the bottom of shell both sides is provided with the third gear, the intermediate position department at mounting panel top is provided with the filter screen, the bottom of filter screen is provided with radiator fan, the both sides at mounting panel top are provided with the fixed block, the intermediate position department at fixed block top is provided with the draw-in groove, one side at mounting panel both ends is provided with the connecting block, the slot has been seted up to the inside both sides of mounting panel bottom, two sets of T type connecting rod's outside cover is equipped with the lamp stand, the lamp stand is provided with the lamp stand, the inside the multiunit is provided with the jack, the inside is provided with the jack, the multiunit is provided with the heat dissipation piece, the lamp stand is provided with the heat dissipation piece.
Preferably, the connecting assembly comprises an arc-shaped groove, a first sliding block, arc-shaped blocks, arc-shaped racks, wedge-shaped blocks, clamping rods, reset springs, a first sliding groove and a second sliding block, wherein the arc-shaped grooves are located at the bottoms of two sides of a lamp holder, the first sliding grooves are located at the tops of two sides of the lamp holder, the first sliding blocks are arranged in the arc-shaped grooves in a sliding mode, two groups of the first sliding blocks are arranged on one sides, away from each other, of the first sliding blocks, the wedge-shaped blocks are arranged on the tops of the two groups of the arc-shaped blocks, the arc-shaped racks are arranged on one sides, away from each other, of the arc-shaped blocks, the second sliding blocks are arranged in the first sliding grooves in a sliding mode, the reset springs are arranged on the tops of the second sliding blocks, and the clamping rods are arranged on one sides, away from each other, of the second sliding blocks.
Preferably, the ventilation assembly comprises a ventilation groove, a fifth gear, a second sliding groove, a rack and blades, wherein three groups of the ventilation grooves are arranged at one end of the inside of the shell, the blades are arranged at one side of the inside of the ventilation groove, the fifth gear is arranged at one side of the blades, the rack is arranged at one side of two ends of the inside of the shell, and the second sliding groove is formed in one end of the front face of the rack.
Preferably, one end of the connecting sliding block extends to the inside of the second sliding groove, and the connecting sliding block and the second sliding groove slide mutually.
Preferably, the second gear and the third gear are meshed with each other, and the second gear and the arc-shaped rack are meshed with each other.
Preferably, the wedge block is located at the bottom of the clamping rod, and the top of the wedge block and the bottom of the clamping rod slide mutually.
Preferably, the top of the clamping rod penetrates through the inside of the slot, and the slot and the clamping rod slide mutually.
Preferably, dustproof grooves are formed in two ends of the lamp holder, and dustproof nets are arranged in the dustproof grooves.
Preferably, grooves are formed in two ends of the mounting plate, and the grooves are located right in front of the blades.
Preferably, a heat dissipation cavity is arranged at the middle position of the top of the lamp holder, and the heat dissipation fin is positioned in the heat dissipation cavity.
Compared with the prior art, the invention provides a detachable portable lighting device, which has the following beneficial effects:
1. according to the invention, the connecting components are arranged on the two sides of the lamp holder, so that the clamping rod can be separated from the inside of the clamping groove under the pushing of the wedge-shaped block, the limit of the clamping rod is released, the lamp holder can be rotated at the moment, the T-shaped connecting rod and the T-shaped sliding groove slide mutually, the T-shaped connecting rod is rotated to the jack, the clamping rod is moved to the extreme end of the slot, the lamp holder can be moved downwards at the moment, the T-shaped connecting rod is separated from the inside of the jack, the clamping rod is separated from the inside of the slot, the lamp holder is detached, and the illuminating lamp in the lamp holder can be replaced and cleaned.
2. The heat dissipation device has the advantages that the heat dissipation fan is arranged in the mounting plate, so that heat generated in the heat dissipation cavity of the lamp holder can be quickly dissipated through the heat dissipation holes, the lighting device can be ensured to always keep within a certain temperature range when in operation, the aging of a circuit caused by heat collection is prevented, and the service life of the lighting device is effectively prolonged.
3. According to the invention, through the rotation of the two groups of threaded rods, the mounting plate can be driven to move in the shell, so that the mounting plate drives the illuminating lamp to move in the shell, and at the moment, the illuminating lamp and the lamp holder can be integrally contained in the shell, so that the illuminating lamp and the glass cover can be protected, and the glass cover can be effectively prevented from being exposed to the outside to cause the surface to be ground, and the illumination intensity is affected.
Drawings
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a top view of the mounting plate of the present invention;
FIG. 3 is an enlarged view of FIG. 1 at A in accordance with the present invention;
FIG. 4 is a top cross-sectional view of the lamp socket of the present invention;
FIG. 5 is a perspective view of a wedge block of the present invention;
fig. 6 is a top cross-sectional view of the housing of the present invention.
In the figure: 1. a top plate; 2. a connection assembly; 201. an arc-shaped groove; 202. a first slider; 203. an arc-shaped block; 204. an arc-shaped rack; 205. wedge blocks; 206. a clamping rod; 207. a return spring; 208. a first chute; 209. a second slider; 3. a ventilation assembly; 301. a ventilation groove; 302. a fifth gear; 303. a second chute; 304. a rack; 305. a blade; 4. a first gear; 5. a synchronous belt; 6. the connecting slide block; 7. a housing; 8. a mounting plate; 9. a second gear; 10. a third gear; 11. a lamp holder; 12. a glass cover; 13. a heat sink; 14. a heat radiation fan; 15. a lighting lamp; 16. a filter screen; 17. a threaded rod; 18. a fourth gear; 19. a fixed block; 20. a clamping groove; 21. a rotating handle; 22. a heat radiation hole; 23. a slot; 24. a jack; 25. a T-shaped chute; 26. t-shaped connecting rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: can dismantle lightweight lighting device, including roof 1, roof 1 bottom's edge is provided with shell 7, roof 1 top's intermediate position department rotates and is provided with rotary handle 21, rotary handle 21's bottom is provided with first gear 4, roof 1 bottom's both sides are provided with threaded rod 17, two sets of threaded rod 17 outside's top is provided with fourth gear 18, two sets of outside cover of fourth gear 18 and first gear 4 is equipped with hold-in range 5, two sets of threaded rod 17 outside threaded connection have mounting panel 8, two sets of threaded rod 17's bottom is provided with second gear 9, shell 7 inside both ends are provided with ventilative subassembly 3, shell 7 both sides's bottom is provided with third gear 10, mounting panel 8 top's intermediate position department is provided with filter screen 16, filter screen 16's bottom is provided with radiator fan 14, mounting panel 8 top's both sides are provided with fixed block 19, fixed block 19 top's intermediate position department is provided with draw-in groove 20, mounting panel 8 both ends's one side is provided with connecting slider 6, mounting panel 8 inside both sides have been seted up slot 23, 8 bottom both sides are provided with T type connecting rod 26, two sets of T type connecting rod 26's outside cover are equipped with mounting panel 11, lamp socket 11 both sides are provided with the jack-shaped 11, the inside of multiunit 11 is provided with jack 11, lamp socket 11 is provided with the jack 11, the jack-shaped 11 is provided with the jack-shaped 11, the both sides of multiunit 11, the lamp socket 11 is provided with the jack 11, the jack 11 is provided with the jack-shaped 11, the inside is provided with the jack-shaped lamp 11, the top 11.
As a preferable scheme of the present embodiment: the connecting assembly 2 comprises an arc-shaped groove 201, a first sliding block 202, arc-shaped blocks 203, arc-shaped racks 204, wedge-shaped blocks 205, clamping rods 206, reset springs 207, first sliding grooves 208 and second sliding blocks 209, wherein the arc-shaped groove 201 is located at the bottom of two sides of the lamp holder 11, the first sliding grooves 208 are located at the tops of two sides of the lamp holder 11, the first sliding blocks 202 are arranged in the arc-shaped groove 201 in a sliding mode, the arc-shaped blocks 203 are arranged on one sides, away from each other, of the two groups of the first sliding blocks 202, the wedge-shaped blocks 205 are arranged on the tops of the two groups of the arc-shaped blocks 203, the arc-shaped racks 204 are arranged on one sides, away from each other, of the two groups of the arc-shaped blocks 203, the second sliding blocks 209 are arranged on the tops of the two groups of the second sliding blocks 209, the reset springs 207 are arranged on the sides, away from each other, and the clamping rods 206 are arranged on one sides, so that the lamp holder 11 can be quickly disassembled.
As a preferable scheme of the present embodiment: the ventilation assembly 3 comprises a ventilation groove 301, a fifth gear 302, a second sliding groove 303, racks 304 and blades 305, wherein the ventilation groove 301 is provided with three groups of one ends located in the shell 7, the blades 305 are arranged on one side in the ventilation groove 301, the fifth gear 302 is arranged on one side of the blades 305, the racks 304 are located on one side of two ends in the shell 7, the second sliding groove 303 is formed in one end of the front face of each rack 304, and cold air is conveniently conveyed to the shell 7.
As a preferable scheme of the present embodiment: one end of the connecting sliding block 6 extends into the second sliding groove 303, and the connecting sliding block 6 and the second sliding groove 303 slide mutually, so that the rack 304 can be driven to simultaneously drive the three groups of fifth gears 302 to rotate.
As a preferable scheme of the present embodiment: the second gear 9 is meshed with the third gear 10, and the second gear 9 is meshed with the arc-shaped rack 204, so that the arc-shaped rack 204 can be conveniently moved.
As a preferable scheme of the present embodiment: the wedge 205 is located at the bottom of the stem 206, and the top of the wedge 205 and the bottom of the stem 206 slide against each other, so that the stem 206 moves up and down.
As a preferable scheme of the present embodiment: the top of the clamping rod 206 penetrates through the inside of the slot 23, and the slot 23 and the clamping rod 206 slide mutually, so that the clamping rod 206 can be ensured to move stably.
As a preferable scheme of the present embodiment: the both ends of lamp stand 11 are provided with dustproof groove, and the inside in dustproof groove is provided with the dust screen, prevents that the dust from getting into the inside of lamp stand 11.
As a preferable scheme of the present embodiment: grooves are formed in two ends of the mounting plate 8, and the grooves are located right in front of the blades 305.
As a preferable scheme of the present embodiment: the middle position at the top of the lamp holder 11 is provided with a heat dissipation cavity, and the heat dissipation fin 13 is positioned in the heat dissipation cavity and dissipates heat rapidly.
In embodiment 1, as shown in fig. 1-4, during installation, the jack 24 on the lamp holder 11 is aligned with the clamping rod 206 on the mounting plate 8, meanwhile, the clamping rod 206 is inserted into the slot 23, the arc-shaped rack 204 and the second gear 9 are meshed with each other again, the lamp holder 11 is rotated at this time, the T-shaped connecting rod 26 moves into the T-shaped chute 25, meanwhile, the clamping rod 206 slides in the slot 23, the clamping rod 206 moves to the upper side of the fixed block 19, at this time, the third gear 10 is shifted, the arc-shaped rack 204 is driven to rotate by the transmission of the second gear 9, the wedge-shaped block 205 is moved away from the bottom of the clamping rod 206, and the clamping rod 206 moves downwards under the elasticity of the return spring 207, so that the clamping rod 206 is clamped in the inside of the clamping groove 20, and the installation of the lamp holder 11 is completed.
In embodiment 2, as shown in fig. 6, during storage, the mounting plate 8 drives the connecting slide block 6 to slide in the second slide groove 303, and when the connecting slide block 6 slides to the top of the second slide groove 303, the rack 304 is driven to move upwards at this time, so that the fifth gear 302 rotates, the blade 305 is driven to rotate, the ventilation groove 301 is sealed, and sundries are prevented from entering the inside of the housing 7 through the ventilation groove 301.
Working principle: when the device is disassembled, the rotary handle 21 drives the first gear 4 to rotate at the moment, the first gear 4 is matched with the fourth gear 18 through the synchronous belt 5, the threaded rod 17 rotates, the mounting plate 8 is driven to move downwards, the arc-shaped rack 204 moves to the same horizontal height as the second gear 9 and is meshed with the second gear, the third gear 10 is stirred at the moment to drive the second gear 9 to rotate, the arc-shaped rack 204 is driven to move, the arc-shaped block 203 slides in the arc-shaped groove 201 through the first sliding block 202, the wedge-shaped block 205 is driven to move, the clamping rod 206 is pushed upwards, the clamping rod 206 is separated from the clamping groove 20, the lamp holder 11 is rotated at the moment, the T-shaped connecting rod 26 and the T-shaped sliding groove 25 slide mutually, the T-shaped connecting rod 26 rotates to the jack 24, the clamping rod 206 is moved to the tail end of the slot 23, the lamp holder 11 can be moved downwards at the moment, the T-shaped connecting rod 26 is separated from the jack 24, and the clamping rod 206 is separated from the inside of the slot 23, so that the disassembly of the lamp holder 11 is completed.
When the mounting plate 8 moves downwards, the mounting plate 8 drives the connecting sliding block 6 to slide in the second sliding groove 303, when the connecting sliding block 6 slides in the second sliding groove 303, the rack 304 is driven to move downwards, the fifth gear 302 rotates, the fifth gear 302 drives the blade 305 to rotate through transmission, the blade 305 and the ventilation groove 301 are mutually perpendicular, the ventilation groove 301 is opened, the air in the shell 7 flows, the cooling fan 14 blows the cooling fin 13, heat is blown out from the inside of the cooling hole 22, and cold air is conveyed to the inside of the lamp holder 11 through the ventilation groove 301.
Finally, it should be noted that the above description is only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and that the simple modification and equivalent substitution of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present invention.
Claims (9)
1. Can dismantle lightweight lighting device, including roof (1), its characterized in that: the edge of roof (1) bottom is provided with shell (7), the intermediate position department rotation of roof (1) top is provided with rotary handle (21), the bottom of rotary handle (21) is provided with first gear (4), the both sides of roof (1) bottom are provided with threaded rod (17), two sets of the top in threaded rod (17) outside is provided with fourth gear (18), two sets of the outside cover of fourth gear (18) and first gear (4) is equipped with hold-in range (5), two sets of threaded rod (17) outside threaded connection has mounting panel (8), two sets of the bottom of threaded rod (17) is provided with second gear (9), the both ends of shell (7) inside are provided with ventilation assembly (3), the bottom of shell (7) both sides is provided with third gear (10), the intermediate position department at mounting panel (8) top is provided with filter screen (16), the bottom of filter screen (16) is provided with fan (14), the both sides at mounting panel (8) top are provided with fixed block (19), the outside cover of fixed block (19) outside the outside is provided with holding down range (8), the both ends (20) are provided with slot (23) inside the inside of mounting panel (8), t-shaped connecting rods (26) are arranged on two sides of the bottom of the mounting plate (8), lamp holders (11) are sleeved on two groups of the outer sides of the T-shaped connecting rods (26), jacks (24) are formed on two sides of the top of the lamp holders (11), T-shaped sliding grooves (25) are formed in two groups of the jacks (24), a glass cover (12) is arranged at the edge of the bottom of the lamp holders (11), an illuminating lamp (15) is arranged at the bottom of the lamp holders (11), a plurality of groups of radiating fins (13) are arranged at the top of the illuminating lamp (15), a plurality of groups of radiating holes (22) are formed in two ends of the inner side of the lamp holders (11), connecting assemblies (2) are arranged on two sides of the lamp holders (11),
wherein, coupling assembling (2) include arc groove (201), first slider (202), arc piece (203), arc rack (204), wedge (205), draw-in bar (206), reset spring (207), first spout (208) and second slider (209), arc groove (201) are located the bottom of lamp stand (11) both sides, first spout (208) are located the top of lamp stand (11) both sides, the inside slip of arc groove (201) is provided with first slider (202), two sets of one side that first slider (202) kept away from each other is provided with arc piece (203), two sets of the top of arc piece (203) is provided with wedge (205), two sets of one side that arc piece (203) kept away from each other is provided with arc rack (204), the inside slip of first spout (208) is provided with second slider (209), two sets of the top of second slider (209) is provided with reset spring (207), two sets of one side that second slider (209) kept away from each other is provided with draw-in bar (206).
2. The detachable portable lighting apparatus of claim 1, wherein: breathable subassembly (3) are including ventilative groove (301), fifth gear (302), second spout (303), rack (304) and blade (305), ventilative groove (301) are provided with three one end that is located shell (7) inside, ventilative groove (301) inside one side is provided with blade (305), one side of blade (305) is provided with fifth gear (302), rack (304) are located one side at the inside both ends of shell (7), second spout (303) have been seted up to positive one end of rack (304).
3. The detachable portable lighting apparatus of claim 1, wherein: one end of the connecting sliding block (6) extends to the inside of the second sliding groove (303), and the connecting sliding block (6) and the second sliding groove (303) slide mutually.
4. The detachable portable lighting apparatus of claim 1, wherein: the second gear (9) is meshed with the third gear (10), and the second gear (9) is meshed with the arc-shaped rack (204).
5. The detachable portable lighting apparatus of claim 1, wherein: the wedge-shaped block (205) is positioned at the bottom of the clamping rod (206), and the top of the wedge-shaped block (205) and the bottom of the clamping rod (206) slide mutually.
6. The detachable portable lighting apparatus of claim 1, wherein: the top of the clamping rod (206) penetrates through the inside of the slot (23), and the slot (23) and the clamping rod (206) slide mutually.
7. The detachable portable lighting apparatus of claim 1, wherein: the lamp holder (11) is provided with dustproof grooves at two ends, and dustproof nets are arranged in the dustproof grooves.
8. The detachable portable lighting apparatus of claim 1, wherein: grooves are formed in two ends of the mounting plate (8), and the grooves are located right in front of the blades (305).
9. The detachable portable lighting apparatus of claim 1, wherein: the middle position at the top of the lamp holder (11) is provided with a heat dissipation cavity, and the heat dissipation fin (13) is positioned in the heat dissipation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310061603.1A CN115789583B (en) | 2023-01-13 | 2023-01-13 | Detachable portable lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310061603.1A CN115789583B (en) | 2023-01-13 | 2023-01-13 | Detachable portable lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115789583A CN115789583A (en) | 2023-03-14 |
| CN115789583B true CN115789583B (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310061603.1A Active CN115789583B (en) | 2023-01-13 | 2023-01-13 | Detachable portable lighting device |
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| Country | Link |
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| CN (1) | CN115789583B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203500935U (en) * | 2013-09-17 | 2014-03-26 | 杭州赛源照明电器有限公司 | Portable energy saving bar-shaped lamp |
| CN205640663U (en) * | 2016-03-24 | 2016-10-12 | 深圳市十颗星科技有限公司 | Disconnect -type solar lamp and solar lamp subassembly |
| CN207796739U (en) * | 2018-01-31 | 2018-08-31 | 广东蜀华照明科技有限公司 | A kind of easy-to-dismount LED projector lamp |
| CN212961060U (en) * | 2020-06-16 | 2021-04-13 | 怀来县金帆机械制造有限公司 | Shell for traffic and transportation illumination |
| CN213649917U (en) * | 2020-11-11 | 2021-07-09 | 安徽徽光智能科技有限责任公司 | Military unmanned aerial vehicle searchlighting mechanism convenient to disassemble |
| CN112747275B (en) * | 2020-12-28 | 2021-10-08 | 宏泰智能科技(东莞)有限公司 | Lamps and lanterns that possess shock-absorbing function convenient to dismouting |
| CN214468164U (en) * | 2021-05-22 | 2021-10-22 | 深圳市中兆光电有限公司 | LED module easy to assemble |
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| CN115789583A (en) | 2023-03-14 |
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