A desktop cable storage power cord arrangement fixing device

Abstract

The present application relates to the technical field of wire arrangement, in particular to a desktop wire arrangement and storage power cord arrangement and fixing device, which comprises a storage box, the inner side of the storage box is provided with a closed structure, the two ends of the storage box are provided with mounting structures, the inner side of the mounting structure is provided with a fastening structure, and the mounting structure and the storage box are connected with a telescopic structure; the closed structure can centrally store and arrange the desktop power cable and adapter, etc., while ensuring the heat dissipation effect of the cable; the mounting structure can fix the storage box to different positions on the desktop through the clamping block according to the needs to store and arrange the cable; the fastening structure can ensure the firmness of clamping and mounting, and provide stable support effect for the stored cable; and the telescopic structure can adapt to different lengths of the desktop to place the storage box, and the use is more flexible.

Description

Technical Field

[0001] This invention relates to the field of cable management technology, specifically a desktop cable management and power cord organization and fixing device. Background Technology

[0002] In daily office and home life scenarios, desktops are often equipped with various electronic devices such as computers, monitors, desk lamps, chargers, and routers. The numerous and cluttered power cords, data cables, and adapters not only affect the neatness and aesthetics of the desktop but also easily lead to tangled, pulled, and knotted cables, increasing the difficulty of use and organization. Furthermore, the long-term accumulation of messy cables easily accumulates dust, hinders heat dissipation, and poses safety hazards; some cables are directly exposed, making them susceptible to being stepped on or scratched, accelerating insulation damage and shortening their lifespan.

[0003] Existing desktop cable management products are mostly simple cable boxes, adhesive cable clips, or open cable trays, which have significant drawbacks: First, the storage space is fixed, making it unable to accommodate adapters of different sizes and resulting in poor versatility; second, the fixing methods are limited, relying mainly on adhesive or placement, which lacks stability, is prone to displacement, and is difficult to adapt to installation needs in various locations such as desktop edges, under desks, and shelves; third, they lack flexible opening and locking structures, making cable access inconvenient and compromising both sealing and heat dissipation; fourth, their length is not adjustable, making them unsuitable for desktops of different widths and limiting their application scenarios. Therefore, developing a desktop power cord organization and fixing device that is efficient in storage, secure in fixation, flexible in installation, and highly adaptable is of significant practical importance. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a desktop cable management and power cord organization and fixing device.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a desktop cable management and power cord organization and fixing device, including a storage box, the inner side of the storage box is provided with a closed structure, both ends of the storage box are provided with mounting structures, the inner side of the mounting structure is provided with a fastening structure, and a telescopic structure connects the mounting structure and the storage box.

[0006] Specifically, the enclosed structure includes a retractable component and a locking component. The retractable component is provided on the inside of the storage box to store and organize cables. The locking component is connected between the retractable component and the storage box to control the opening and closing of the retractable component.

[0007] Specifically, the storage assembly includes an opening and closing slot and a cable outlet slot. The opening and closing slot is rotatably connected to the inner side of the storage box. Both ends of the opening and closing slot are fan-shaped. The surface of the storage box is porous. Multiple cable outlet slots are respectively opened on both sides of the opening and closing slot.

[0008] Specifically, the locking assembly includes a locking block, a first spring, a limiting block, and a locking groove. The limiting block is fixedly connected to the middle of the storage box. The side of the limiting block abuts against the opening and closing groove. The locking block is slidably connected to the middle of the opening and closing groove. The first spring is fixedly connected between the locking block and the opening and closing groove. The locking groove is provided on the bottom side of the limiting block. The end of the locking block engages with the limiting block through the locking groove.

[0009] Specifically, the installation structure includes a connecting plate, with a connecting plate at each end of the storage box, a reversing block rotatably connected to the side of the connecting plate, and a clamping block slidably connected to the side of the reversing block, the clamping block having an "L" shaped structure.

[0010] Specifically, the reversing block has four positioning grooves arranged in a ring at equal intervals on its side. Multiple positioning slide rods are slidably connected to the inner side of the connecting plate. A second spring is fixedly connected between the positioning slide rods and the connecting plate. The ends of the positioning slide rods abut against the reversing block through the positioning grooves.

[0011] Specifically, the fastening structure includes a drive screw, the drive screw is rotatably connected to the middle of the reversing block, the end of the clamping block is slidably connected to the middle of the reversing block through a square groove, and the end of the drive screw is threadedly connected to the clamping block.

[0012] Specifically, a positioning ring is rotatably connected to the inner side of the reversing block, a third spring is fixedly connected between the positioning ring and the clamping block, an adjusting cap is slidably connected to the end of the driving screw away from the clamping block, and a fourth spring is fixedly connected between the adjusting cap and the driving screw.

[0013] Specifically, the telescopic structure includes a first insertion hole and a second insertion hole. The storage box has a first insertion hole and a second insertion hole at each end. The first insertion hole and the second insertion hole located on the same side are diagonally opposite each other. The side of the connecting plate is provided with a first insertion rod and a second insertion rod corresponding to the first insertion hole and the second insertion hole, respectively. The first insertion rod and the second insertion rod are slidably connected to the storage box through the first insertion hole and the second insertion hole, respectively.

[0014] Specifically, a protrusion is fixedly connected to the end of the first insertion rod, and a comb-shaped tooth groove is provided on the inner side of the first insertion hole. The protrusion engages with the storage box through the groove structure in the first insertion hole.

[0015] Specifically, the second insertion rod is fixedly connected to the connecting plate, the first insertion rod is rotatably connected to the connecting plate, a torsion spring is fixedly connected between the end of the first insertion rod and the connecting plate, the end of the first insertion rod has an "L" shaped structure, a limiting groove is opened on the side of the connecting plate, and the end of the first insertion rod is slidably connected to the connecting plate through the limiting groove.

[0016] The beneficial effects of this invention are:

[0017] (1) The desktop cable management and power cord organization and fixing device of the present invention has a closed structure on the inside of the storage box. The closed structure can centrally store and organize desktop power cables and adapters, while ensuring the heat dissipation effect of the cables.

[0018] (2) The desktop cable management and power cord organization and fixing device of the present invention has an installation structure at both ends of the storage box. The installation structure can be used to fix the storage box to different positions on the desktop for cable management as needed by clamping blocks.

[0019] (3) The desktop cable management and power cord organization and fixing device of the present invention has a fastening structure on the inner side of the installation structure. The fastening structure can ensure the firmness of the clamping installation and provide a stable support effect for the stored cables.

[0020] (4) The desktop cable management and power cord organization and fixing device of the present invention has an installation structure at both ends of the storage box, a fastening structure on the inner side of the installation structure, and a telescopic structure connecting the installation structure and the storage box. The telescopic structure can adapt to desktops of different lengths for the placement of the storage box, making it more flexible to use. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection structure between the storage box and the opening / closing slot of the present invention;

[0024] Figure 3 This is a schematic diagram of the opening and closing groove of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure between the locking block and the limiting block of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the storage box of the present invention;

[0027] Figure 6 This is a schematic diagram of the connection structure between the connecting plate and the first insertion rod of the present invention;

[0028] Figure 7 This is a schematic diagram of the connection structure between the storage box and the first insertion hole of the present invention;

[0029] Figure 8 This is a schematic diagram of the connection structure between the first insert and the protrusion of the present invention;

[0030] Figure 9 This is a schematic diagram of the connection structure between the connecting plate and the clamping block of the present invention;

[0031] Figure 10 This is a schematic diagram of the connection structure between the commutator block and the clamping block of the present invention.

[0032] In the diagram: 1. Storage box; 2. Enclosed structure; 201. Opening groove; 202. Locking block; 203. Limiting block; 204. Cable outlet groove; 205. Engaging groove; 206. First spring; 3. Mounting structure; 301. Connecting plate; 302. Reversing block; 303. Clamping block; 304. Positioning groove; 305. Positioning slide rod; 306. Second spring; 4. Fastening structure; 401. Adjusting cap; 402. Drive screw; 403. Third spring; 404. Positioning ring; 405. Fourth spring; 5. Telescopic structure; 501. First insertion hole; 502. Second insertion hole; 503. First insertion rod; 504. Second insertion rod; 505. Protrusion; 506. Limiting groove; 507. Torsion spring. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figure 1 , Figure 2 , Figure 6 , Figure 10 As shown, the desktop cable management and power cord organization and fixing device of the present invention includes a storage box 1, a closed structure 2 on the inner side of the storage box 1, mounting structures 3 at both ends of the storage box 1, a fastening structure 4 on the inner side of the mounting structure 3, and a telescopic structure 5 connecting the mounting structure 3 and the storage box 1.

[0035] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the enclosed structure 2 includes a cable retraction component and a locking component. The cable retraction component is provided on the inner side of the storage box 1 to store and organize cables. The locking component connects the cable retraction component and the storage box 1 to control the opening and closing of the cable retraction component. The cable retraction component includes an opening and closing groove 201 and a cable outlet groove 204. The opening and closing groove 201 is rotatably connected to the inner side of the storage box 1. Both ends of the opening and closing groove 201 are fan-shaped. The surface of the storage box 1 has a porous structure. Multiple cable outlet grooves 204 are respectively opened on both sides of the opening and closing groove 201. The locking component includes a locking block 202, a first spring 206, a limit stop 203, and a locking groove 205. The limit stop 203 is fixedly connected to the middle of the storage box 1. The side of the limiting block 203 abuts against the opening and closing groove 201. A locking block 202 is slidably connected to the middle of the opening and closing groove 201. A first spring 206 is fixedly connected between the locking block 202 and the opening and closing groove 201. A locking groove 205 is provided on the bottom side of the limiting block 203. The end of the locking block 202 is engaged with the limiting block 203 through the locking groove 205. The closed structure 2 allows for centralized storage and organization of desktop power cables and adapters, while ensuring the heat dissipation of the cables. Specifically, the opening and closing groove 201 is rotatably connected to the inside of the storage box 1. The two ends of the opening and closing groove 201 are fan-shaped structures, facilitating smooth rotation and opening and closing. The surface of the storage box 1 adopts a porous structure to ensure internal heat dissipation and prevent heat accumulation. Multiple cable outlet grooves 204 are provided on both sides of the opening and closing groove 201 to classify and lead out different cables, preventing tangling. When locked, the limiting block 203 in the middle of the storage box 1 restricts the rotation angle of the opening and closing slot 201, facilitating the unscrewing of the opening and closing slot 201 for cable placement. A locking block 202 is slidably mounted in the middle of the opening and closing slot 201, with a first spring 206 providing elastic thrust between the locking block 202 and the opening and closing slot 201. A locking groove 205 is formed on the bottom side of the limiting block 203, and the end of the locking block 202 automatically engages with the locking groove 205 under the action of the first spring 206, achieving a closed lock. To open, press the locking block 202 to compress the first spring 206, releasing the engagement with the locking groove 205, allowing the opening and closing slot 201 to be rotated to open the storage space and complete the placement and removal of cables and adapters.

[0036] Specifically, such as Figure 1 , Figure 6 , Figure 9 , Figure 10As shown, the mounting structure 3 includes a connecting plate 301. A connecting plate 301 is provided at each end of the storage box 1. A reversing block 302 is rotatably connected to the side of the connecting plate 301. A clamping block 303 is slidably connected to the side of the reversing block 302. The clamping block 303 has an "L"-shaped structure. Four positioning grooves 304 are equidistantly spaced in a ring on the side of the reversing block 302. Multiple positioning slide rods 305 are slidably connected to the inner side of the connecting plate 301. The positioning slide rods 305 are connected to the connecting plate 301. A second spring 306 is fixedly connected between the two. The end of the positioning slide rod 305 abuts against the reversing block 302 through the positioning groove 304. The installation structure 3 can fix the storage box 1 to different positions on the desktop for cable storage and organization as needed by using the clamping block 303. That is, the storage box 1 is provided with connecting plates 301 at both ends. The side of the connecting plate 301 is rotatably connected to the reversing block 302. The side of the reversing block 302 is slidably connected to the L-shaped clamping block 303, which can adapt to different installation surfaces such as desktop edges, under the table, and vertical partitions. Four positioning grooves 304 are equidistantly provided on the side of the reversing block 302. Multiple positioning slide rods 305 are slidably arranged on the inner side of the connecting plate 301. The positioning slide rods 305 are connected to the connecting plate 301 by the second spring 306. After rotating the reversing block 302 to the target angle, the positioning slide rods 305 abut against the positioning grooves 304 under the elastic force of the second spring 306, realizing angle positioning and fixation, and meeting the needs of different installation scenarios.

[0037] Specifically, such as Figure 1 , Figure 9 , Figure 10As shown, the fastening structure 4 includes a drive screw 402. The drive screw 402 is rotatably connected to the middle of the reversing block 302. The end of the clamping block 303 is slidably connected to the middle of the reversing block 302 through a square groove. The end of the drive screw 402 is threadedly connected to the clamping block 303. A positioning ring 404 is rotatably connected to the inner side of the reversing block 302. A third spring 403 is fixedly connected between the positioning ring 404 and the clamping block 303. The drive screw 402... An adjusting cap 401 is slidably connected to one end of the clamping block 303, and a fourth spring 405 is fixedly connected between the adjusting cap 401 and the drive screw 402. The fastening structure 4 ensures the firmness of the clamping installation and provides stable support for the stored cable. Specifically, the drive screw 402 is rotatably connected to the middle of the reversing block 302, the end of the clamping block 303 is slidably limited to the middle of the reversing block 302 through a square groove, and the end of the drive screw 402 is threadedly connected to the clamping block 303. Rotating the drive screw 402 drives the clamping block 303 to move linearly, achieving clamping or releasing. A positioning ring 404 is rotatably connected to the inner side of the reversing block 302. A third spring 403 connects the positioning ring 404 and the clamping block 303, providing traction for the clamping block 303. When the direction of the reversing block 302 needs to be adjusted, to ensure that the clamping block 303 does not interfere with the rotation of the reversing block 302, the user can unscrew the drive screw 402 from the clamping block 303, then pull the clamping block 303 out of the square slot and adjust its orientation for easy use. After releasing the clamping block 303, under the traction of the third spring 403, the clamping block 303 will automatically achieve a threaded connection with the drive screw 402 for easy clamping and fixing. An adjusting cap 401 is slidably connected to the outer end of the drive screw 402. A fourth spring 405 connects the adjusting cap 401 and the drive screw 402, allowing the adjusting cap 401 to automatically reset and maintain a pressed state, facilitating the rotation of the drive screw 402 while ensuring the flatness of the device's sides.

[0038] Specifically, such as Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the telescopic structure 5 includes a first insertion hole 501 and a second insertion hole 502. The storage box 1 has a first insertion hole 501 and a second insertion hole 502 at each end. The first insertion hole 501 and the second insertion hole 502, located on the same side, are diagonally opposite each other. The side of the connecting plate 301 has a first insertion rod 503 and a second insertion rod 504 corresponding to the first insertion hole 501 and the second insertion hole 502, respectively. The first insertion rod 503 and the second insertion rod 504 are slidably connected to the storage box 1 through the first insertion hole 501 and the second insertion hole 502, respectively. A protrusion 505 is fixedly connected to the end of the first insertion rod 503. The inner side of the first insertion hole 501 has a comb-like groove. The protrusion 505 is connected to the storage box 1 through the groove structure inside the first insertion hole 501. The second insertion rod 504 is fixedly connected to the connecting plate 301, and the first insertion rod 503 is rotatably connected to the connecting plate 301. A torsion spring 507 is fixedly connected between the end of the first insertion rod 503 and the connecting plate 301. The end of the first insertion rod 503 has an "L"-shaped structure. A limiting groove 506 is provided on the side of the connecting plate 301, and the end of the first insertion rod 503 is slidably connected to the connecting plate 301 through the limiting groove 506. The telescopic structure 5 can adapt to different lengths of desktops for the placement of the storage box 1, making it more flexible to use. That is, the storage box 1 has a first insertion hole 501 and a second insertion hole 502 diagonally provided at both ends. The first insertion rod 503 and the second insertion rod 504 are correspondingly provided on the side of the connecting plate 301. The two insertion rods slide and cooperate with the two insertion holes respectively to realize telescopic adjustment. A protrusion 505 is fixed at the end of the first insertion rod 503, and a comb-shaped tooth groove is provided on the inner side of the first insertion hole 501. The protrusion 505 engages with the tooth groove to achieve length positioning. The first insert rod 503 is rotatably connected to the connecting plate 301. Its end has an L-shaped structure and is connected to the connecting plate 301 by a torsion spring 507. It also works in conjunction with the limiting groove 506 on the side of the connecting plate 301. When the length needs to be adjusted, rotate the first insert rod 503 to disengage the protrusion 505 from the comb-shaped tooth groove, and then pull the connecting plate 301 to adjust the overall length. After the adjustment is in place, release the first insert rod 503, and the torsion spring 507 will cause it to automatically reset, and the protrusion 505 will re-engage into the tooth groove, thus completing the length locking.

[0039] In use, first rotate the first insert rod 503 at the end of the storage box 1 to disengage the protrusion 505 on the insert rod from the comb-shaped groove in the first insertion hole 501 to release the length lock. Then, pull or push the connecting plates 301 at both ends outwards or inwards according to the length of the desktop. After adjusting the device to a suitable length, release the first insert rod 503. Under the action of the torsion spring 507, the protrusion 505 automatically engages with the corresponding groove to complete the length fixation. Next, rotate the drive screw 402 until it completely disengages from the threaded hole at the end of the clamping block 303. At this point, the clamping block... Block 303 slides out and rotates, adjusting the orientation of clamping block 303 to avoid interfering with the rotation of reversing block 302. Then, rotate reversing block 302 on connecting plate 301 to adjust the clamping angle of clamping block 303 to fit the installation position such as the edge of the table, under the table, or vertical partition. After reversing block 302 is in place, positioning slide rod 305 will automatically complete angle positioning by engaging positioning groove 304 under the action of second spring 306. At this time, restore the orientation of the end of clamping block 303, and then clamping clamping block 303 to the target installation position on the table. Rotating the adjusting cap 401 drives the drive screw 402 to rotate. Under the traction of the third spring 403, the clamping block 303 will actively connect to the end of the drive screw 402 via a thread. As the drive screw 402 continues to rotate, the clamping block 303 moves inward and clamps the tabletop. After fixing, press the locking block 202 on the opening and closing slot 201 to compress the first spring 206, causing it to disengage from the locking slot 205 of the limit stop block 203. Rotate the opening and closing slot 201 upward to open the storage space and put the power cord, adapter, etc. into the storage space. Inside the storage box 1, different cables are led out from the cable outlet slots 204 on both sides of the opening and closing slot 201 to prevent tangling. Then, the opening and closing slot 201 is closed, and the locking block 202 automatically engages with the locking slot 205 under the action of the first spring 206 to complete the locking. The porous structure on the surface of the storage box 1 can ensure internal heat dissipation. When it is necessary to add or replace cables, simply press the locking block 202 to open the opening and closing slot 201 for quick operation. After use, closing the opening and closing slot 201 will automatically lock it. The entire process does not require disassembling the equipment and is convenient to use.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A desktop cable management and power cord organization and fixing device, characterized in that, Includes a storage box (1), the inner side of which is provided with a closed structure (2); The closed structure (2) includes a retractable component and a locking component. The retractable component is provided on the inner side of the storage box (1) to store and organize the cables. The locking component is connected between the retractable component and the storage box (1) to control the opening and closing of the retractable component.

2. The desktop cable management and power cord organization and fixing device according to claim 1, characterized in that: The storage and dispensing assembly includes an opening and closing groove (201) and a cable outlet groove (204). The opening and closing groove (201) is rotatably connected to the inner side of the storage box (1). Both ends of the opening and closing groove (201) are fan-shaped structures. The surface of the storage box (1) is a porous structure. Multiple cable outlet grooves (204) are respectively opened on both sides of the opening and closing groove (201).

3. The desktop cable management and power cord organization and fixing device according to claim 2, characterized in that: The locking assembly includes a locking block (202), a first spring (206), a limiting block (203), and a locking groove (205). The limiting block (203) is fixedly connected to the middle of the storage box (1). The side of the limiting block (203) abuts against the opening and closing groove (201). The locking block (202) is slidably connected to the middle of the opening and closing groove (201). The first spring (206) is fixedly connected between the locking block (202) and the opening and closing groove (201). The locking groove (205) is opened on the bottom side of the limiting block (203). The end of the locking block (202) is engaged with the limiting block (203) through the locking groove (205).

4. The desktop cable management and power cord organization and fixing device according to claim 1, characterized in that: The storage box (1) has an installation structure (3) at both ends. The installation structure (3) includes a connecting plate (301). The storage box (1) has a connecting plate (301) at each end. The side of the connecting plate (301) is rotatably connected to a reversing block (302). The side of the reversing block (302) is slidably connected to a clamping block (303). The clamping block (303) has an "L" shaped structure.

5. A desktop cable management and power cord organization and fixing device according to claim 4, characterized in that: The reversing block (302) has four positioning grooves (304) arranged in a ring at equal intervals on its side. The inner side of the connecting plate (301) is slidably connected with multiple positioning slide rods (305). A second spring (306) is fixedly connected between the positioning slide rod (305) and the connecting plate (301). The end of the positioning slide rod (305) abuts against the reversing block (302) through the positioning groove (304).

6. A desktop cable management and power cord organization and fixing device according to claim 4, characterized in that: The mounting structure (3) has a fastening structure (4) on its inner side. The fastening structure (4) includes a drive screw (402). The drive screw (402) is rotatably connected to the middle part of the reversing block (302). The end of the clamping block (303) is slidably connected to the middle part of the reversing block (302) through a square groove. The end of the drive screw (402) is threadedly connected to the clamping block (303).

7. A desktop cable management and power cord organization and fixing device according to claim 6, characterized in that: A positioning ring (404) is rotatably connected to the inner side of the reversing block (302). A third spring (403) is fixedly connected between the positioning ring (404) and the clamping block (303). An adjusting cap (401) is slidably connected to one end of the drive screw (402) away from the clamping block (303). A fourth spring (405) is fixedly connected between the adjusting cap (401) and the drive screw (402).

8. A desktop cable management and power cord organization and fixing device according to claim 4, characterized in that: The mounting structure (3) is connected to the storage box (1) by a telescopic structure (5). The telescopic structure (5) includes a first insertion hole (501) and a second insertion hole (502). The storage box (1) has a first insertion hole (501) and a second insertion hole (502) at each end. The first insertion hole (501) and the second insertion hole (502) located on the same side are diagonally opposite each other. The side of the connecting plate (301) is provided with a first insertion rod (503) and a second insertion rod (504) corresponding to the first insertion hole (501) and the second insertion hole (502). The first insertion rod (503) and the second insertion rod (504) are slidably connected to the storage box (1) through the first insertion hole (501) and the second insertion hole (502) respectively.

9. A desktop cable management and power cord organization and fixing device according to claim 8, characterized in that: The end of the first insertion rod (503) is fixedly connected to a protrusion (505), and the inner side of the first insertion hole (501) is provided with a comb-shaped tooth groove. The protrusion (505) engages with the storage box (1) through the groove structure in the first insertion hole (501).

10. A desktop cable management and power cord organization and fixing device according to claim 9, characterized in that: The second insertion rod (504) is fixedly connected to the connecting plate (301), the first insertion rod (503) is rotatably connected to the connecting plate (301), a torsion spring (507) is fixedly connected between the end of the first insertion rod (503) and the connecting plate (301), the end of the first insertion rod (503) has an "L" shaped structure, a limiting groove (506) is opened on the side of the connecting plate (301), and the end of the first insertion rod (503) is slidably connected to the connecting plate (301) through the limiting groove (506).

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