Self-locking type lamp hook

By designing a limiting, adjusting, and disassembling mechanism for a self-locking lamp hook, the problem of low safety in existing lamp hooks is solved, achieving stable connection and flexible adjustment, thus improving safety and convenience.

CN121761284APending Publication Date: 2026-03-31GUANGZHOU HUADU DISTRICT SANJIE STAGE LIGHTING & SOUND EQUIP FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing lamp hooks have low safety during the fixing process with lamp holders and lamps, and may wobble or loosen, posing a safety hazard.

Method used

A self-locking lamp hook was designed, comprising a first retaining ring, a connecting cylinder, a main hook, and a second retaining ring. Through the combination of a limiting mechanism, an adjusting mechanism, and a disassembly and assembly mechanism, the hook and lamp holder are stably locked and flexibly adjusted, enhancing connection stability and convenience.

Benefits of technology

It improves the safety and stability of the connection between the hook and the light fixture, enhances the flexibility and practicality of the hook, and improves the convenience of inspection and maintenance.

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Abstract

The invention discloses a self-locking type lamp hook, and relates to the technical field of lamp hooks, the self-locking type lamp hook comprises a connecting cylinder, the connecting cylinder is located at the center position of the left side of the bottom end of a first embracing ring, an adjusting cylinder is slidably connected to the interior of the bottom end of the connecting cylinder, and a first adjusting mechanism is arranged on the left side of the joint of the connecting cylinder and the adjusting cylinder. The lamp holder has the advantages that limiting mechanisms are arranged in the first holding ring and the main hook, when a push block in the first holding ring makes contact with the lamp holder, the push block can extrude a first spring through a first movable block, and meanwhile, the first movable block unwinds a first pull rope; the second spring can push out the first limiting rod from the interior of the first embracing ring through the second movable block to complete locking with the lamp holder, meanwhile, when the lamp connecting part presses the pressing block in the main hook, the second limiting rod can stretch out of the main hook, and locking of the main hook and the lamp is rapidly conducted.
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Description

Technical Field

[0001] This invention relates to the field of lamp hook technology, and more particularly to a self-locking lamp hook. Background Technology

[0002] The lighting fixtures commonly used in stage performances are hung on lamp poles or lamp frames using lamp hooks. Lamp hooks are a type of fixing device used to safely suspend lighting equipment such as chandeliers and decorative lights. They are usually made of metal or high-strength plastic, which can bear the weight of the lamp and facilitate adjustment of the hanging height and angle.

[0003] A search revealed that Chinese Patent CN223036312U discloses an outdoor lighting hook, which includes a hook, a hanging part and a snap-fit ​​part. The snap-fit ​​part is fixed to one end of the hanging part, and the other end of the hanging part has a hanging hole. A suspension hook is fixedly connected to the front outer wall of the hanging part, and a through hole is provided at the bottom of the hanging part.

[0004] While the aforementioned lamp hooks are convenient and quick to install, they have limited functionality and low safety. During the process of fixing them to the lamp holder and lamp, external forces may cause the lamp to sway or the connection to loosen, thus posing certain safety hazards. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a self-locking lamp hook, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-locking lamp hook, comprising:

[0008] The first retaining ring has a fitting mechanism at the center of the left side interior and a first limiting mechanism at the bottom right side interior.

[0009] A connecting cylinder is located at the center of the left side of the bottom end of the first retaining ring. An adjusting cylinder is slidably connected inside the bottom end of the connecting cylinder. A first adjusting mechanism is provided on the left side of the connection between the connecting cylinder and the adjusting cylinder, and a disassembly and assembly mechanism is provided on the right side of the connection between the connecting cylinder and the adjusting cylinder.

[0010] The main hook is located outside the bottom end of the adjusting cylinder. A second adjusting mechanism is provided at the top left side inside the main hook, and a second limiting mechanism is provided at the right side of the bottom end inside the main hook.

[0011] The second retaining ring is installed on the top of the connecting cylinder, and a lever buckle is rotatably connected to the center position of the left side inside the second retaining ring.

[0012] Furthermore, the fitting mechanism includes a push block slidably connected inside the left side of the first retaining ring, a first movable block fixedly connected to the left side of the push block, a first spring fixedly connected to the left side of the first movable block, airbags fixedly connected to the upper and lower ends of the left side of the first movable block, a first wear-resistant air cushion fixedly connected to the bottom end inside the push block, and a second wear-resistant air cushion fixedly connected to the top end inside the push block. The first wear-resistant air cushion and the second wear-resistant air cushion are connected to the airbags through an air supply pipe.

[0013] Furthermore, the first limiting mechanism includes a first movable groove opened at the bottom inner end of the right side of the first retaining ring, a second movable block slidably connected inside the first movable groove, a first limiting rod fixedly connected to the top of the second movable block, a second spring fixedly connected to the bottom end of the second movable block, a first pull rope fixedly connected to the left side of the lower surface of the second movable block, and the end of the first pull rope away from the second movable block fixedly connected to the bottom end of the left side of the first movable block.

[0014] Furthermore, the second spring force is less than the first spring force, and the bottom end of the first retaining ring is provided with multiple rollers for the first pull rope to be turned.

[0015] Furthermore, the first adjusting mechanism includes a screw threaded to the bottom left end of the connecting cylinder, a movable disc fixed to the right side of the screw, a positioning rod fixed to the center of the right side of the movable disc, and a plurality of first positioning holes evenly and vertically opened at equal intervals on the left side of the adjusting cylinder, one of which is inserted into the positioning rod.

[0016] Furthermore, the disassembly and assembly mechanism includes a second movable groove opened at the top right side inside the adjusting cylinder, a third movable block slidably connected inside the second movable groove, a third spring fixedly connected to the left side of the third movable block, a sliding block fixedly connected to the right side of the third movable block, a second magnetic block fixedly connected inside the right side of the sliding block, a sliding groove opened on the right side inside the connecting cylinder, a sliding block vertically slidably connected inside the sliding groove, and a first magnetic block fixedly connected to the bottom right side of the sliding groove.

[0017] Furthermore, the contact surfaces of the first and second magnetic blocks are magnetically repelled.

[0018] Furthermore, the second adjustment mechanism includes a turntable fixed to the bottom end of the adjustment cylinder. The turntable has multiple second positioning holes equidistantly spaced around its interior. A circular groove is provided on the left side of the top end of the main hook. The turntable is slidably connected inside the circular groove. Two positioning blocks are fixed to the left and right sides of the top end of the circular groove. The outside of the two positioning blocks is inserted into the second positioning holes.

[0019] Furthermore, the second limiting mechanism includes a third movable groove at the center of the bottom end inside the main hook, a fourth movable block fixedly connected to the top of the third movable groove, a plurality of fourth springs fixedly connected to the bottom of the fourth movable block, a pressing block fixedly connected to the center of the top of the fourth movable block, a fourth movable groove inside the right side of the main hook, a fifth movable block slidably connected inside the fourth movable groove, a second limiting rod fixedly connected to the center of the top of the fifth movable block, a fifth spring fixedly connected to the bottom of the fifth movable block, a second pull rope fixedly connected to the left side of the lower surface of the fifth movable block, and the end of the second pull rope away from the fifth movable block fixedly connected to the right side of the lower surface of the fourth movable block.

[0020] Compared with existing technologies, the advantages of this invention are:

[0021] 1. This type of self-locking lamp hook features limiting mechanisms inside both the first retaining ring and the main hook. When the push block inside the first retaining ring contacts the lamp holder, the push block pushes the first movable block to compress the first spring. Simultaneously, the first movable block releases the first pull rope, causing the second spring to push the second movable block, pushing the first limiting rod out of the first retaining ring to lock it with the lamp holder. At the same time, when the lamp connecting part presses the pressing block inside the main hook, the second limiting rod can extend from the main hook to quickly lock the main hook with the lamp, effectively improving the safety and stability of the connection between the hook and the lamp holder.

[0022] 2. This type of self-locking lamp hook features a first adjustment mechanism at the connection between the adjusting cylinder and the connecting cylinder. By inserting a positioning rod on the first adjustment mechanism into the first positioning hole at different positions on the adjusting cylinder, the lengths of the connecting cylinder and the adjusting cylinder can be adjusted, increasing the distance between the first retaining ring and the hook. Simultaneously, a second adjustment mechanism is provided inside the adjusting cylinder and the main hook. When the positioning block on the main hook is inserted into the second positioning hole at different positions on the turntable at the bottom of the adjusting cylinder, the angle of use of the main hook can be adjusted, thereby improving the overall flexibility and practicality of the hook.

[0023] 3. This type of self-locking lamp hook has a fitting mechanism inside the first retaining ring. When the push block contacts the lamp holder, the movement of the first movable block can simultaneously squeeze the two airbags on the left side. At this time, the gas in the airbags can be introduced into the first wear-resistant air cushion and the second wear-resistant air cushion through the air supply pipe, causing the first wear-resistant air cushion and the second wear-resistant air cushion to inflate and expand, thereby fitting against the outer surface of the lamp holder. This effectively increases the friction between the first retaining ring and the lamp holder, preventing the first retaining ring from sliding left and right and affecting stability.

[0024] 4. This type of self-locking lamp hook is equipped with a disassembly and assembly mechanism. When the adjusting cylinder moves the sliding block to the bottom of the inner groove of the connecting cylinder, the first magnetic block in the groove generates a repulsive magnetic force that can push the second magnetic block in the sliding block and cause the sliding block to retract into the interior of the adjusting cylinder. This allows for quick disassembly of the first retaining ring and the main hook. The modular design improves the convenience of hook inspection and maintenance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A;

[0028] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B;

[0029] Figure 5 This is a schematic diagram of the overall structure of the regulating cylinder of the present invention;

[0030] Figure 6 This is a schematic diagram of the right-side side view structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the installation structure of the present invention (10).

[0032] In the diagram: 1. First retaining ring; 2. Push block; 201. First movable block; 202. First spring; 203. Airbag; 204. First wear-resistant air cushion; 205. Second wear-resistant air cushion; 3. First movable groove; 301. Second movable block; 302. First limiting rod; 303. Second spring; 304. First pull rope; 4. Connecting cylinder; 401. Slide groove; 402. First magnetic block; 5. Screw; 501. Movable disc; 502. Positioning rod; 6. Adjusting cylinder; 601. First positioning hole; 602. Second movable... 603. Moving groove; 604. Third movable block; 605. Third spring; 606. Sliding block; 607. Second magnetic block; 608. Turntable; 609. Second positioning hole; 700. Main hook; 701. Circular groove; 702. Positioning block; 801. Third movable groove; 802. Fourth movable block; 803. Pressing block; 904. Fourth spring; 905. Fourth movable groove; 906. Fifth movable block; 907. Second limiting rod; 908. Fifth spring; 909. Second pull rope; 1000. Second retaining ring; 1001. Lever buckle. Detailed Implementation

[0033] like Figures 1-6As shown, the present invention has the following two specific embodiments.

[0034] Example 1

[0035] A self-locking lamp hook, comprising:

[0036] The first retaining ring 1 has a fitting mechanism at the center of the left side interior and a first limiting mechanism at the bottom right side interior.

[0037] Connecting cylinder 4 is located at the center of the left side of the bottom end of the first retaining ring 1, and an adjusting cylinder 6 is slidably connected inside the bottom end of the connecting cylinder 4.

[0038] The main hook 7 is located outside the bottom end of the adjusting cylinder 6, and a second limiting mechanism is provided on the right side of the bottom end inside the main hook 7.

[0039] The fitting mechanism includes a push block 2 that is slidably connected to the left side of the first retaining ring 1. A first movable block 201 is fixed to the left side of the push block 2. A first spring 202 is fixed to the left side of the first movable block 201. Airbags 203 are fixed to the upper and lower ends of the left side of the first movable block 201. A first wear-resistant air cushion 204 is fixed to the bottom end inside the push block 2. A second wear-resistant air cushion 205 is fixed to the top end inside the push block 2. The first wear-resistant air cushion 204 and the second wear-resistant air cushion 205 are connected to the airbag 203 through an air supply pipe.

[0040] When the push block 2 comes into contact with the lamp holder, the first movable block 201 can compress the first spring 202 and the air bag 203. At the same time, the air bag 203 can inflate the first wear-resistant air cushion 204 and the second wear-resistant air cushion 205 through the air supply pipe. Thus, the first wear-resistant air cushion 204 and the second wear-resistant air cushion 205 can expand and fit against the outer surface of the lamp holder.

[0041] The first limiting mechanism includes a first movable groove 3 opened at the bottom right side of the first retaining ring 1. A second movable block 301 is slidably connected inside the first movable groove 3. A first limiting rod 302 is fixedly connected to the top of the second movable block 301. A second spring 303 is fixedly connected to the bottom of the second movable block 301. A first pull rope 304 is fixedly connected to the left side of the lower surface of the second movable block 301. The end of the first pull rope 304 away from the second movable block 301 is fixedly connected to the bottom left side of the first movable block 201. The elastic force of the second spring 303 is less than that of the first spring 202. Multiple rollers are provided at the bottom inside the first retaining ring 1 for turning the first pull rope 304.

[0042] Under normal conditions, the first spring 202 pushes the push block 2 through the first movable block 201. The first movable block 201 can then pull the second movable block 301 through the first pull rope 304. At this time, the second movable block 301 squeezes the second spring 303 and simultaneously pulls the first limiting rod 302 into the first retaining ring 1. When the push block 2 is squeezed, it causes the first movable block 201 to move. At this time, due to the reaction force of the second spring 303 being squeezed, the first limiting rod 302 can be extended out of the first retaining ring 1 through the second movable block 301.

[0043] The second limiting mechanism includes a third movable groove 8 opened at the center of the bottom of the main hook 7. A fourth movable block 801 is fixedly connected to the top of the third movable groove 8. Multiple fourth springs 803 are fixedly connected to the bottom of the fourth movable block 801. A pressing block 802 is fixedly connected to the center of the top of the fourth movable block 801. A fourth movable groove 9 is opened inside the right side of the main hook 7. A fifth movable block 901 is slidably connected inside the fourth movable groove 9. A second limiting rod 902 is fixedly connected to the center of the top of the fifth movable block 901. A fifth spring 903 is fixedly connected to the bottom of the fifth movable block 901. A second pull rope 904 is fixedly connected to the left side of the lower surface of the fifth movable block 901. The end of the second pull rope 904 away from the fifth movable block 901 is fixedly connected to the right side of the lower surface of the fourth movable block 801.

[0044] When the lamp presses the pressing block 802 inside the main hook 7, the pressing block 802 can squeeze the fourth spring 803 through the fourth movable block 801. At the same time, the fourth movable block 801 releases the line through the second pull rope 904 to the fifth movable block 901. Thus, the fifth spring 903 can push the second limit rod 902 out of the main hook 7 through the fifth movable block 901, completing the self-locking of the main hook 7.

[0045] Example 2

[0046] The difference from Embodiment 1 is that this embodiment discloses a first adjustment mechanism provided on the left side of the connection between the connecting cylinder 4 and the adjusting cylinder 6, and a second adjustment mechanism provided at the top left side of the main hook 7.

[0047] The first adjustment mechanism includes a screw 5 threaded to the bottom left side of the connecting cylinder 4, a movable disc 501 fixed to the right side of the screw 5, a positioning rod 502 fixed to the center of the right side of the movable disc 501, and a plurality of first positioning holes 601 evenly and vertically opened at equal intervals on the left side of the adjustment cylinder 6, and one of the first positioning holes 601 is inserted into the positioning rod 502.

[0048] The rotation of screw 5 can push positioning rod 502 through movable disc 501. When positioning rod 502 is inserted into the first positioning hole 601 at different positions on adjusting cylinder 6, the length adjustment of connecting cylinder 4 and adjusting cylinder 6 can be completed.

[0049] The second adjustment mechanism includes a turntable 607 fixed to the bottom end of the adjustment cylinder 6. The turntable 607 has multiple second positioning holes 608 equidistantly spaced around its interior. A circular groove 701 is provided on the left side of the top end of the main hook 7. The turntable 607 is slidably connected inside the circular groove 701. Two positioning blocks 702 are fixed to the left and right sides of the top end of the circular groove 701. The exterior of the two positioning blocks 702 is inserted into the second positioning holes 608.

[0050] By lifting the main hook 7, the main hook 7 can drive the positioning block 702 to be pulled out from the second positioning hole 608 on the turntable 607. At this time, the main hook 7 can be rotated, and the angle of the main hook 7 can be adjusted by inserting the circular groove 701 on the main hook 7 into the second positioning hole 608 at different positions on the turntable 607.

[0051] Example 3

[0052] The difference from Embodiment 1 is that this embodiment discloses a disassembly and assembly mechanism provided on the right side of the connection between the connecting cylinder 4 and the adjusting cylinder 6:

[0053] The disassembly and assembly mechanism includes a second movable groove 602 opened at the top right side inside the adjusting cylinder 6. A third movable block 603 is slidably connected inside the second movable groove 602. A third spring 604 is fixedly connected to the left side of the third movable block 603. A sliding block 605 is fixedly connected to the right side of the third movable block 603. A second magnetic block 606 is fixedly connected inside the right side of the sliding block 605. A sliding groove 401 is opened on the right side inside the connecting cylinder 4. The sliding block 605 is vertically slidably connected inside the sliding groove 401. A first magnetic block 402 is fixedly connected to the bottom right side inside the sliding groove 401. The contact surfaces of the first magnetic block 402 and the second magnetic block 606 are magnetically repelled.

[0054] The movement of the adjusting cylinder 6 can cause the sliding block 605 to slide in the groove 401 on the connecting cylinder 4. When the sliding block 605 moves to the bottom of the groove 401, the first magnetic block 402 in the groove 401 generates a repulsive magnetic force, which can push the sliding block 605 into the second movable groove 602 through the second magnetic block 606, thereby allowing the adjusting cylinder 6 to be pulled out from the bottom of the connecting cylinder 4.

[0055] Example 4

[0056] The difference from Embodiment 1 is that this embodiment discloses a second retaining ring 10 installed on the top of the connecting cylinder 4.

[0057] The second retaining ring 10 is installed on the top of the connecting cylinder 4. A lever buckle 1001 is rotatably connected to the center position on the left side inside the second retaining ring 10. When the lever buckle 1001 inside the second retaining ring 10 contacts the lamp post, the bottom of the lever buckle 1001 can lock with the top of the second retaining ring 10 due to the lever principle, thus completing the stable connection.

[0059] In this embodiment, during installation, the first retaining ring 1 is placed on the lamp holder and the push block 2 is pushed, causing the first movable block 201 to compress the first spring 202 and the air bag 203. Gas is filled into the first wear-resistant air cushion 204 and the second wear-resistant air cushion 205 to expand and fit the lamp holder to increase friction. At the same time, the first movable block 201 moves to loosen the first pull rope 304, and the second spring 303 pushes the second movable block 301 to cause the first limiting rod 302 to extend out and lock the lamp holder.

[0060] The length of the hook is adjusted by rotating the screw 5 to insert the positioning rod 502 into the first positioning hole 601 at different positions on the adjusting cylinder 6. The angle is adjusted by lifting the main hook 7 to disengage the positioning block 702 from the second positioning hole 608, rotating it and then re-engaging it.

[0061] The locking of the lamp is achieved by pressing the pressing block 802 of the lamp to release the fourth movable block 801 and the second pull rope 904. The fifth spring 903 pushes the fifth movable block 901 to extend the second limit rod 902. Modular disassembly and assembly are achieved by the sliding block 605 sliding along the slide groove 401 when the adjusting cylinder 6 is inserted into the connecting cylinder 4. The magnetic repulsion between the second magnetic block 606 and the first magnetic block 402 completes the engagement. Pushing down the adjusting cylinder 6 will cause the sliding block 605 to retract for quick separation.

[0062] The foregoing 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A self-locking lamp hook, characterized in that, include: The first retaining ring (1) has a fitting mechanism at the center of the left side of the first retaining ring (1) and a first limiting mechanism at the bottom right side of the first retaining ring (1). Connecting cylinder (4), the connecting cylinder (4) is located at the center of the left side of the bottom end of the first retaining ring (1), the bottom end of the connecting cylinder (4) is slidably connected to the adjusting cylinder (6), the left side of the connection between the connecting cylinder (4) and the adjusting cylinder (6) is provided with a first adjusting mechanism, and the right side of the connection between the connecting cylinder (4) and the adjusting cylinder (6) is provided with a disassembly and assembly mechanism. The main hook (7) is located outside the bottom end of the adjusting cylinder (6). The top left side of the main hook (7) is provided with a second adjusting mechanism, and the bottom right side of the main hook (7) is provided with a second limiting mechanism. The second retaining ring (10) is installed on the top of the connecting cylinder (4), and a lever buckle (1001) is rotatably connected to the center position on the left side inside the second retaining ring (10).

2. The self-locking lamp hook according to claim 1, characterized in that: The fitting mechanism includes a push block (2) that is slidably connected to the left side of the first retaining ring (1). A first movable block (201) is fixed to the left side of the push block (2). A first spring (202) is fixed to the left side of the first movable block (201). Airbags (203) are fixed to the upper and lower ends of the left side of the first movable block (201). A first wear-resistant air cushion (204) is fixed to the bottom end inside the push block (2). A second wear-resistant air cushion (205) is fixed to the top end inside the push block (2). The first wear-resistant air cushion (204) and the second wear-resistant air cushion (205) are connected to the airbag (203) through an air supply pipe.

3. A self-locking lamp hook according to claim 2, characterized in that: The first limiting mechanism includes a first movable groove (3) opened at the bottom right side of the first retaining ring (1). A second movable block (301) is slidably connected inside the first movable groove (3). A first limiting rod (302) is fixedly connected to the top of the second movable block (301). A second spring (303) is fixedly connected to the bottom of the second movable block (301). A first pull rope (304) is fixedly connected to the left side of the lower surface of the second movable block (301). One end of the first pull rope (304) away from the second movable block (301) is fixedly connected to the bottom left side of the first movable block (201).

4. A self-locking lamp hook according to claim 3, characterized in that: The second spring (303) has a smaller elastic force than the first spring (202), and the bottom of the first retaining ring (1) is provided with multiple rollers for turning the first pull rope (304).

5. A self-locking lamp hook according to claim 1, characterized in that: The first adjustment mechanism includes a screw (5) threaded to the bottom left side of the connecting cylinder (4), a movable disc (501) fixed to the right side of the screw (5), a positioning rod (502) fixed to the center of the right side of the movable disc (501), and a plurality of first positioning holes (601) are evenly and vertically opened at equal intervals on the left side of the adjustment cylinder (6), and one of the first positioning holes (601) is inserted into the positioning rod (502).

6. A self-locking lamp hook according to claim 1, characterized in that: The disassembly and assembly mechanism includes a second movable groove (602) opened at the top right side inside the adjusting cylinder (6), a third movable block (603) is slidably connected inside the second movable groove (602), a third spring (604) is fixedly connected to the left side of the third movable block (603), a sliding block (605) is fixedly connected to the right side of the third movable block (603), a second magnetic block (606) is fixedly connected inside the right side of the sliding block (605), a sliding groove (401) is opened on the right side inside the connecting cylinder (4), a sliding block (605) is vertically slidably connected inside the sliding groove (401), and a first magnetic block (402) is fixedly connected to the bottom right side inside the sliding groove (401).

7. A self-locking lamp hook according to claim 6, characterized in that: The contact surfaces of the first magnetic block (402) and the second magnetic block (606) are magnetically repulsive.

8. A self-locking lamp hook according to claim 1, characterized in that: The second adjustment mechanism includes a turntable (607) fixed to the bottom end of the adjustment cylinder (6). The turntable (607) has multiple second positioning holes (608) equidistantly spaced around its interior. The main hook (7) has a circular groove (701) on the left side of its top end. The turntable (607) is slidably connected inside the circular groove (701). Two positioning blocks (702) are fixed to the left and right sides of the top end of the circular groove (701). The outside of the two positioning blocks (702) is inserted into the second positioning holes (608).

9. A self-locking lamp hook according to claim 1, characterized in that: The second limiting mechanism includes a third movable groove (8) opened at the center of the bottom end inside the main hook (7), a fourth movable block (801) fixedly connected to the top of the third movable groove (8), a plurality of fourth springs (803) fixedly connected to the bottom end of the fourth movable block (801), a pressing block (802) fixedly connected to the center of the top end of the fourth movable block (801), a fourth movable groove (9) opened inside the right side of the main hook (7), a fifth movable block (901) slidably connected inside the fourth movable groove (9), a second limiting rod (902) fixedly connected to the center of the top end of the fifth movable block (901), a fifth spring (903) fixedly connected to the bottom end of the fifth movable block (901), a second pull rope (904) fixedly connected to the left side of the lower surface of the fifth movable block (901), and the end of the second pull rope (904) away from the fifth movable block (901) fixedly connected to the right side of the lower surface of the fourth movable block (801).

Citation Information

Patent Citations

  • Outdoor lamp hook

    CN223036312U