An energy-saving lighting device convenient for hoisting

Abstract

The present invention discloses an energy-saving lighting device convenient for hoisting, which relates to the field of lighting devices and includes a fixed mounting plate, a lamp connecting rod, a top lamp shade, a bottom lamp shade, a lamp core and a hoisting mounting plate. Four of the lamp connecting rods are located outside the fixed mounting plate. The top lamp shade is fixedly mounted at the lower end of the lamp connecting rod, and the bottom lamp shade is movably mounted at the lower end of the top lamp shade. The energy-saving lighting device convenient for hoisting according to the present invention enables quick hoisting of the device, eliminating the trouble of screwing for disassembly of the device and also eliminating the trouble of operating on the installation position, realizing simultaneous angular adjustment of multiple lamp cores, enabling the lifting screw rod to rotate up and down for adjusting the lighting height of the lower lamp core, and the lifting drive rod operates below the device, not only realizing a single-rod multi-functional operation adjustment method but also not affecting the lighting use of the device.

Description

Technical Field

[0001] The present invention relates to the field of lighting devices, and particularly to an energy-saving lighting device convenient for hoisting. Background Art

[0002] The energy-saving lighting device for hoisting is a type of lighting device, which is installed on the wall top by means of hoisting, and uses a low-power energy-saving lamp core to conduct electricity and emit light to illuminate the indoor space, so it is widely used in various indoor buildings.

[0003] The Chinese patent with the application number "CN202321451520.5" discloses "a hoisting type fire emergency lighting lamp, which relates to the technical field of emergency lighting lamps. Among them, the hoisting type fire emergency lighting lamp includes an adjusting component and a connecting component. The adjusting component includes a protective cover, an external threaded pipe, a sleeve pipe and an internal threaded sleeve". Although it can achieve the effect of "by rotating the internal threaded sleeve, the internal threaded sleeve drives the sleeve pipe to move axially along the external threaded pipe. The sleeve pipe is sleeved on the external threaded pipe, so that the length adjustment of the two can be conveniently carried out. The fire emergency lighting lamp is installed by means of clamping, avoiding bolt connection. When replacing the new fire emergency lighting lamp in the future, the cost of the fire emergency lighting lamp is also reduced", when the lighting device is in use, in order to facilitate the hoisting of the lighting device, a split structure is generally adopted. First, the fixed part is installed on the wall top, and then the device body is installed on the fixed part. However, when installing the device body, screw locking operation is also required, and when the device is removed, manual removal operation of the fixed position is also required. Therefore, it is not convenient for the hoisting, fixing and removal of the device. At the same time, since the device is installed at a high place, after the device is installed, it is more difficult to adjust the lighting angle and height, and the operator needs to move to a high place again for operation, which brings inconvenience to the adjustment of the lighting angle and height. Summary of the Invention

[0004] The main purpose of the present invention is to provide an energy-saving lighting device convenient for hoisting, which can effectively solve the technical problems raised in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] An energy-saving lighting device convenient for hoisting, comprising a fixed mounting plate, a lamp connecting rod, a top lamp shade, a bottom lamp shade, a lamp core and a hoisting mounting plate. Four said lamp connecting rods are located outside the fixed mounting plate. The top lamp shade is fixedly mounted at the lower end of the lamp connecting rod. The bottom lamp shade is movably mounted at the lower end of the top lamp shade. The lamp core is fixedly embedded inside the top lamp shade. The hoisting mounting plate is located above the fixed mounting plate. Four groups of gear mounting brackets are fixedly mounted at the upper edge of the fixed mounting plate. A worm gear is movably mounted at the top of the gear mounting bracket. A gear connecting frame fixedly connected to the upper end of the lamp connecting rod is fixedly mounted on the outside of the worm gear. A worm gear meshed with the worm gear is movably mounted at the center of the upper end of the fixed mounting plate. A bottom transmission gear is fixedly mounted at the upper end of the worm gear. A screw structure is fixedly mounted between the gear mounting bracket and the worm gear at the upper end of the fixed mounting plate. A driving structure movably penetrates through the center of the fixed mounting plate. A fixed sleeve is arranged at the upper end of the screw structure. Two torsion spring seats are fixedly mounted at the outer top of the fixed sleeve. A docking clamping ring is movably mounted on the outside of the torsion spring seat. A docking structure is welded at the lower end of the hoisting mounting plate.

[0007] As a further scheme of the present invention, the worm gear is located above the fixed mounting plate, and the four worm gears are arranged in a cross shape around the center of the worm gear.

[0008] As a further scheme of the present invention, the screw structure includes a support frame, a support ring, a lifting screw rod, a top transmission gear and an expansion head. A plurality of support frames are fixedly mounted between the gear mounting bracket and the worm gear at the upper end of the fixed mounting plate. The support ring is welded to the upper end of the support frame. The lifting screw rod is movably mounted inside the support ring. The top transmission gear is welded to the lower end of the lifting screw rod. The expansion head is welded to the upper end of the lifting screw rod.

[0009] As a further scheme of the present invention, the top transmission gear is located below the support ring and is in fit connection with it. The bottom transmission gear is located below the top transmission gear and is vertically arranged with it. The lifting screw rod is threadedly mounted inside the fixed sleeve, and the expansion head is located inside the fixed sleeve.

[0010] As a further scheme of the present invention, the driving structure includes a lifting driving rod, a docking head, a gear mounting block, a driving gear and a limiting frame. The limiting frame is movably mounted outside the support frame. The gear mounting block is movably mounted inside the limiting frame. Two driving gears are respectively welded to the upper end and the lower end of the gear mounting block. The lifting driving rod is fixedly mounted at the lower end of the gear mounting block and penetrates through the driving gear. The docking head is welded to the lower end of the lifting driving rod.

[0011] As a further solution of the present invention, the lifting drive rod sequentially passes downward through the bottom transmission gear, the worm gear, and the fixedly installed plate. The docking head is located below the fixedly installed plate. The gear mounting block is located between the bottom transmission gear and the top transmission gear. When the gear mounting block rises, the driving gear above it meshes with the top transmission gear. When the gear mounting block falls, the driving gear below it meshes with the bottom transmission gear.

[0012] As a further solution of the present invention, a docking sleeve is sleeved outside the docking head. The lower end of the docking sleeve is welded with an operating rod, and the lower end of the operating rod is welded with an operating handle.

[0013] As a further solution of the present invention, the docking structure includes a hoisting connection block, a docking convex block, a splitting block, and an expanding block. The hoisting connection block is welded to the lower end of the hoisting mounting plate. The docking convex block is integrally formed in front of and behind the outside of the hoisting connection block. Two splitting blocks are movably installed above the inside of the docking convex block. The expanding block is integrally formed below the splitting block.

[0014] As a further solution of the present invention, the docking convex block communicates with the inside of the fixed sleeve. The expanding block is located inside the docking convex block and is movably connected to it. The expanding block is triangularly arranged, and the two expanding blocks are symmetrically arranged between them.

[0015] As a further solution of the present invention, the bottom of the docking snap ring rotates around the torsion spring seat. The top of the docking snap ring is sleeved outside the docking convex block, and the splitting block is attached to the top of the docking snap ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When installing the device, the connection between the docking snap ring and the docking convex block is used to install and fix the fixed sleeve and the hoisting connection block, thereby quickly hoisting the device, saving the trouble of screwing and making it more convenient for the device to be hoisted and fixed;

[0017] When removing the device, through the rotation operation of the lifting drive rod, the expanding head is used to push the expanding block and the splitting block to expand, so that the docking snap ring is separated from the docking convex block, and the fixed sleeve can be quickly split from the hoisting connection block to remove the device, saving the trouble of operating the installation position and making it more convenient for the device to be hoisted, fixed, and removed;

[0018] When it is necessary to adjust the lighting angle of the device, through the rotation operation of the lifting drive rod, the meshing connection between the worm gear and the worm wheel is used to drive its rotation to adjust the lighting angle of the lower lamp wick. At the same time, the connection structure of the worm and worm wheel is used to position the angle of the lamp wick after adjustment, realizing the simultaneous angle adjustment of multiple lamp wicks. And the lifting drive rod is operated below the device, saving the trouble of operating at a high place and facilitating the lighting use of the device in different ranges;

[0019] When it is necessary to adjust the lighting height of the device, through the rotation operation of the lifting drive rod, the lifting screw rotates up and down by using the threaded connection in the fixed sleeve, so as to adjust the lighting height of the lower wick. And the lifting drive rod is operated below the device, saving the trouble of operating at a high place and facilitating the lighting use at different heights of the device;

[0020] By disassembling and assembling the docking sleeve, the docking sleeve can be quickly installed and separated from the docking head. When performing adjustment operations, the docking sleeve is sleeved with the docking head to operate the lifting drive rod. When not in use, the docking sleeve is removed and the lifting drive rod is removed, which not only realizes the single-rod multi-functional operation and adjustment method, but also does not affect the lighting use of the device. Brief Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of an energy-saving lighting device that is convenient for hoisting according to the present invention;

[0022] Figure 2 It is a structural diagram after the worm gear rotates in an energy-saving lighting device that is convenient for hoisting according to the present invention;

[0023] Figure 3 It is a bottom view of an energy-saving lighting device that is convenient for hoisting according to the present invention;

[0024] Figure 4 It is an enlarged view of the fixed mounting plate in an energy-saving lighting device that is convenient for hoisting according to the present invention;

[0025] Figure 5 It is an enlarged view of the worm gear in an energy-saving lighting device that is convenient for hoisting according to the present invention;

[0026] Figure 6 It is an enlarged view of the drive structure in an energy-saving lighting device that is convenient for hoisting according to the present invention;

[0027] Figure 7 It is an enlarged view of the fixed sleeve in an energy-saving lighting device that is convenient for hoisting according to the present invention;

[0028] Figure 8 It is an anatomical view of the fixed sleeve in an energy-saving lighting device that is convenient for hoisting according to the present invention.

[0029] In the figure: 1, fixed mounting plate; 2, gear mounting bracket; 3, worm gear teeth; 4, gear connecting bracket; 5, lamp connecting rod; 6, top lamp cover; 7, bottom lamp cover; 8, lamp wick; 9, worm teeth; 10, bottom drive teeth; 11, screw structure; 12, support frame; 13, support ring; 14, lifting screw; 15, top drive teeth; 16, expansion head; 17, drive structure; 18, lifting drive rod; 19, docking head; 20, gear mounting block; 21, drive gear; 22, limit frame; 23, fixed sleeve; 24, torsion spring shaft seat; 25, docking snap ring; 26, docking structure; 27, hoisting connection block; 28, docking convex block; 29, splitting block; 30, expansion block; 31, hoisting mounting plate; 32, docking sleeve; 33, operating rod; 34, operating handle. Detailed implementation manners

[0030] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0031] As Figures 1-8 shown, an energy-saving lighting device convenient for hoisting includes a fixed mounting plate 1, a lamp connecting rod 5, a top lamp cover 6, a bottom lamp cover 7, a lamp wick 8 and a hoisting mounting plate 31. Four lamp connecting rods 5 are located outside the fixed mounting plate 1. The top lamp cover 6 is fixedly installed at the lower end of the lamp connecting rod 5. The bottom lamp cover 7 is movably installed at the lower end of the top lamp cover 6. The lamp wick 8 is fixedly embedded inside the top lamp cover 6. The hoisting mounting plate 31 is located above the fixed mounting plate 1. Four groups of gear mounting brackets 2 are fixedly installed at the upper end edge of the fixed mounting plate 1. A worm gear tooth 3 is movably installed at the top of the gear mounting bracket 2. A gear connecting bracket 4 fixedly connected to the upper end of the lamp connecting rod 5 is fixedly installed outside the worm gear tooth 3. A worm tooth 9 meshed with the worm gear tooth 3 is movably installed at the center of the upper end of the fixed mounting plate 1. A bottom drive tooth 10 is fixedly installed at the upper end of the worm tooth 9. A screw structure 11 is fixedly installed between the gear mounting bracket 2 and the worm tooth 9 at the upper end of the fixed mounting plate 1. A drive structure 17 movably penetrates through the center of the fixed mounting plate 1. A fixed sleeve 23 is arranged at the upper end of the screw structure 11. Two torsion spring shaft seats 24 are fixedly installed at the outer top of the fixed sleeve 23. A docking snap ring 25 is movably installed outside the torsion spring shaft seat 24. A docking structure 26 is welded at the lower end of the hoisting mounting plate 31.

[0032] In this embodiment, the worm gear teeth 3 are located above the fixed mounting plate 1. The four worm gear teeth 3 are arranged in a cross shape around the center of the worm tooth 9, and the worm tooth 9 drives the worm gear teeth 3 to rotate and move simultaneously.

[0033] In this embodiment, the screw structure 11 includes a support frame 12, a support ring 13, a lifting screw 14, a top transmission gear 15, and an expansion head 16. A plurality of support frames 12 are fixedly installed at the upper end of the fixed mounting plate 1 between the gear mounting frame 2 and the worm gear 9. The support ring 13 is welded to the upper end of the support frame 12. The lifting screw 14 is movably installed inside the support ring 13. The top transmission gear 15 is welded to the lower end of the lifting screw 14. The expansion head 16 is welded to the upper end of the lifting screw 14. The support ring 13 serves to effect the movable installation of the lifting screw 14.

[0034] In this embodiment, the top transmission gear 15 is located below the support ring 13 and is in fit connection therewith. The bottom transmission gear 10 is located below the top transmission gear 15 and is vertically arranged therewith. The lifting screw 14 is threadedly installed inside the fixed sleeve 23. The expansion head 16 is located inside the fixed sleeve 23. The lifting screw 14 rotates and lifts inside the fixed sleeve 23 by means of threaded connection.

[0035] In this embodiment, the drive structure 17 includes a lifting drive rod 18, a docking head 19, a gear mounting block 20, a drive gear 21, and a limit frame 22. The limit frame 22 is movably installed outside the support frame 12. The gear mounting block 20 is movably installed inside the limit frame 22. Two drive gears 21 are respectively welded to the upper end and the lower end of the gear mounting block 20. The lifting drive rod 18 is fixedly installed at the lower end of the gear mounting block 20 and penetrates through the drive gear 21. The docking head 19 is welded to the lower end of the lifting drive rod 18. The limit frame 22 can lift and move outside the support frame 12 and is used in cooperation with the lifting movement of the lifting drive rod 18.

[0036] In this embodiment, the lifting drive rod 18 sequentially passes downward through the bottom transmission gear 10, the worm gear 9, and the fixed mounting plate 1. The docking head 19 is located below the fixed mounting plate 1. The gear mounting block 20 is located between the bottom transmission gear 10 and the top transmission gear 15. When the gear mounting block 20 rises, the upper drive gear 21 meshes with the top transmission gear 15. When the gear mounting block 20 falls, the lower drive gear 21 meshes with the bottom transmission gear 10. The upper and lower gear mounting blocks 20 mesh with the top transmission gear 15 and the bottom transmission gear 10 respectively at different positions to achieve a transmission effect.

[0037] In this embodiment, a docking sleeve 32 is sleeved outside the docking head 19. An operating rod 33 is welded to the lower end of the docking sleeve 32. An operating handle 34 is welded to the lower end of the operating rod 33. The docking sleeve 32 can be quickly installed and separated from the docking head 19. During adjustment operations, it can be used for operation and removed when not in use.

[0038] In this embodiment, the docking structure 26 includes a hoisting connection block 27, a docking convex block 28, a splitting block 29, and an expansion block 30. The hoisting connection block 27 is welded to the lower end of the hoisting mounting plate 31. The docking convex block 28 is integrally formed at the front and rear sides of the outside of the hoisting connection block 27. Two splitting blocks 29 are movably installed above the inside of the docking convex block 28. The expansion block 30 is integrally formed below the splitting block 29. The hoisting connection block 27 is used to connect the fixed sleeve 23.

[0039] In this embodiment, the docking convex block 28 penetrates through the inside of the fixed sleeve 23. The expansion block 30 is located inside the docking convex block 28 and is movably connected thereto. The expansion block 30 is arranged in a triangular shape. The two expansion blocks 30 are symmetrically arranged. Due to the triangular arrangement of the expansion block 30, the expansion head 16 can push the two expansion blocks 30 apart.

[0040] In this embodiment, the bottom of the docking snap ring 25 rotates around the torsion spring shaft seat 24. The top of the docking snap ring 25 is sleeved on the outside of the docking convex block 28. The splitting block 29 is attached and connected to the top of the docking snap ring 25. The torsion spring shaft seat 24 drives the docking snap ring 25 to always flip to one side through the setting of the torsion spring, so that the docking snap ring 25 is firmly stuck on the outside of the docking convex block 28 for fixation, and can also be pushed open for separation.

[0041] It should be noted that the present invention is an energy-saving lighting device convenient for hoisting. When in use, the hoisting mounting plate 31 is first fixed to the wall top by passing through screws. The fixed sleeve 23 and the hoisting connection block 27 are initially in a separated state. Then, the upper end of the fixed sleeve 23 is connected to the hoisting connection block 27. At the same time, the docking snap rings 25 on both sides are sleeved on the outside of the docking convex block 28, and the torsion spring shaft seat 24 drives the docking snap rings 25 to always apply a force and move to one side, so that the docking snap rings 25 are firmly connected to the docking convex block 28, installing and fixing the fixed sleeve 23 and the hoisting connection block 27, and then hoisting the components below. Then, the lamp core 8 in the top lamp cover 6 is energized to emit light for lighting use;

[0042] When it is necessary to adjust the illumination angle of the device, the docking sleeve 32 at the upper end of the operating rod 33 is docked with the docking head 19. Therefore, by rotating the operating handle 34 and the operating rod 33, the docking sleeve 32 and the docking head 19 can be driven to rotate. The rotation of the docking head 19 simultaneously drives the lifting drive rod 18 and the gear mounting block 20 at the upper end to rotate. Affected by gravity, the gear mounting block 20 is initially located below, so that the lower drive gear 21 is meshed and connected with the bottom transmission gear 10. Therefore, the rotation of the gear mounting block 20 also drives the bottom transmission gear 10 to rotate through the drive gear 21, and the bottom transmission gear 10 then drives the worm gear 9 to rotate. The meshing connection between the worm gear 9 and the worm wheel gear 3 is used to drive its rotation, thereby driving the gear connecting frame 4 and the lamp connecting rod 5 outside the worm wheel gear 3 to rotate, and adjusting the illumination angle of the lower lamp wick 8. Moreover, the worm gear 9 and the worm wheel gear 3 are in a worm and worm wheel connection structure. When the worm gear 9 drives the worm wheel gear 3, the lead angle of the worm gear 9 is smaller than the equivalent friction angle of the meshing worm wheel gear 3, and reverse self-locking can be achieved, and the worm wheel gear 3 cannot drive the worm gear 9 to rotate to position the adjusted angle of the lamp wick 8.

[0043] When it is necessary to adjust the illumination height of the device, after the docking sleeve 32 is docked with the docking head 19, grasp the operating handle 34 and move it upward, so that the lifting drive rod 18 rises upward in the fixed mounting plate 1 and the worm gear 9, and then the gear mounting block 20 moves to the upper part. Then the upper drive gear 21 is meshed and connected with the top transmission gear 15. Therefore, when the operating rod 33 and the lifting drive rod 18 rotate again, the top transmission gear 15 is driven to rotate by the drive gear 21, and the top transmission gear 15 then drives the lifting screw 14 to rotate in the support ring 13. Then, through the threaded connection between the lifting screw 14 and the fixed sleeve 23, the lifting screw 14 rotates up and down to adjust the illumination height of the lower lamp wick 8.

[0044] When it is necessary to disassemble the device, continuously rotate the lifting screw 14 upward so that the lifting screw 14 rotates to the topmost part in the fixed sleeve 23. Therefore, the expansion head 16 enters the docking convex block 28 and contacts the centers of the two expansion blocks 30, and the conical structure of the expansion head 16 is used to push the two triangular expansion blocks 30 to expand and move, thereby driving the two split blocks 29 to expand, so that the split blocks 29 push the docking snap ring 25 to move outward from the docking convex block 28. Therefore, the docking snap ring 25 is separated from the docking convex block 28, and the fixed sleeve 23 can be quickly disassembled from the hoisting connection block 27 to disassemble the device.

[0045] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving lighting device that is easy to hoist, comprising a fixed installation plate (1), a lamp connecting rod (5), a top lampshade (6), a bottom lampshade (7), a wick (8) and a hoisting installation plate (31), wherein the four lamp connecting rods (5) are located outside the fixed installation plate (1), the top lampshade (6) is fixedly mounted on the lower end of the lamp connecting rod (5), the bottom lampshade (7) is movably mounted on the lower end of the top lampshade (6), the wick (8) is fixedly embedded in the inner side of the top lampshade (6), and the hoisting installation plate (31) is located above the fixed installation plate (1), characterized in that: Four sets of gear mounting frames (2) are fixedly mounted on the upper edge of the fixed mounting plate (1); worm gears (3) are movably mounted on the top of the gear mounting frame (2); a gear connecting frame (4) fixedly connected to the upper end of the lamp connecting rod (5) is fixedly mounted on the outer side of the worm gears (3); worm gears (9) meshingly connected to the worm gears (3) are movably mounted on the upper center of the fixed mounting plate (1); bottom transmission gears (10) are fixedly mounted on the upper end of the worm gears (9); and the fixed mounting plate (1) is provided with a plurality of gears (2) disposed on the fixed mounting plate (1). The upper end of the fixed mounting plate (31) is located between the gear mounting frame (2) and the worm gear (9), and a screw structure (11) is fixedly installed thereon; a driving structure (17) is movably penetrated through the center of the fixed mounting plate (1); a fixed sleeve (23) is provided at the upper end of the screw structure (11); two torsion spring shaft seats (24) are fixedly installed at the top of the outer side of the fixed sleeve (23); a docking clamp (25) is movably installed at the outer side of the torsion spring shaft seat (24); and a docking structure (26) is welded to the lower end of the lifting mounting plate (31); The screw structure (11) comprises a support frame (12), a support ring (13), a lifting screw (14), a top transmission tooth (15) and an expansion head (16); the plurality of support frames (12) are fixedly mounted on the upper end of the fixed mounting plate (1) and are located between the gear mounting frame (2) and the worm gear (9); the support ring (13) is welded to the upper end of the support frame (12); the lifting screw (14) is movably mounted on the inner side of the support ring (13); the top transmission tooth (15) is welded to the lower end of the lifting screw (14); and the expansion head (16) is welded to the upper end of the lifting screw (14); The driving structure (17) comprises a lifting driving rod (18), a butt joint (19), a gear mounting block (20), a driving gear (21) and a limiting frame (22); the limiting frame (22) is movably mounted on the outside of the supporting frame (12); the gear mounting block (20) is movably mounted on the inside of the limiting frame (22); two driving gears (21) are respectively welded to the upper end and the lower end of the gear mounting block (20); the lifting driving rod (18) is fixedly mounted on the lower end of the gear mounting block (20) and penetrates the driving gear (21); and the butt joint (19) is welded to the lower end of the lifting driving rod (18); The outer side of the docking joint (19) is sleeved with a docking sleeve (32), the lower end of the docking sleeve (32) is welded with an operating rod (33), and the lower end of the operating rod (33) is welded with an operating handle (34); The docking structure (26) comprises a hoisting connection block (27), a docking protrusion (28), a split block (29) and an expansion block (30); the hoisting connection block (27) is welded to the lower end of the hoisting installation plate (31); the docking protrusion (28) is integrally formed at the front and rear of the outer side of the hoisting connection block (27); two split blocks (29) are movably mounted on the upper inner side of the docking protrusion (28); and the expansion block (30) is integrally formed below the split block (29).

2. The energy-saving lighting device that is easy to hoist according to claim 1 is characterized in that: The worm gear teeth (3) are located above the fixed mounting plate (1), and the four worm gear teeth (3) are arranged in a cross shape around the center of the worm gear teeth (9).

3. The energy-saving lighting device that is easy to hoist according to claim 1 is characterized in that: The top transmission teeth (15) are located below the support ring (13) and are closely connected thereto; the bottom transmission teeth (10) are located below the top transmission teeth (15) and are vertically arranged thereto; the lifting screw (14) is threadedly mounted inside the fixed sleeve (23); and the expansion head (16) is located inside the fixed sleeve (23).

4. The energy-saving lighting device that is easy to hoist according to claim 1 is characterized in that: The lifting drive rod (18) passes downward through the bottom transmission teeth (10), the worm gear teeth (9) and the fixed mounting plate (1) in sequence; the butt joint (19) is located below the fixed mounting plate (1); the gear mounting block (20) is located between the bottom transmission teeth (10) and the top transmission teeth (15); when the gear mounting block (20) is raised, the upper driving gear (21) is meshed and connected with the top transmission teeth (15); when the gear mounting block (20) is lowered, the lower driving gear (21) is meshed and connected with the bottom transmission teeth (10).

5. The energy-saving lighting device that is easy to hoist according to claim 1 is characterized in that: The docking protrusion (28) is connected to the interior of the fixed sleeve (23); the expansion block (30) is located inside the docking protrusion (28) and is movably connected thereto; the expansion block (30) is arranged in a triangular shape, and the two expansion blocks (30) are symmetrically arranged.

6. The energy-saving lighting device that is easy to hoist according to claim 5, characterized in that: The bottom of the docking snap ring (25) rotates around the torsion spring shaft seat (24), the top of the docking snap ring (25) is sleeved on the outside of the docking protrusion (28), and the split block (29) is fitted and connected to the top of the docking snap ring (25).

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