Auxiliary positioning device for automobile skylight guide rail

By designing an integrated automotive sunroof guide rail auxiliary positioning device, the existing magnetic suction fixtures have solved the problems of poor stability and cumbersome processes during the installation process, and the rapid and stable installation of the guide rails has been achieved, and the work efficiency and practicality have been improved.

CN222832941UActive Publication Date: 2025-05-06NANTONG INST OF TECH
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Patent Information

Application Number
CN202421642660.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2025-05-06
Estimated Expiration
2034-07-11

AI Technical Summary

Technical Problem

The existing magnetic suction fixtures have poor stability and cumbersome positioning process when installing car sunroof guide rails, resulting in low working efficiency and poor practicality.

Method used

An auxiliary positioning device for automobile sunroof guide rails is designed to reduce installation processes and improve work efficiency by integrating the clamping and positioning of the guide rails. The device includes a magnetic suction head, an adjustment device, a support device, a mounting mechanism, a telescopic device and a clamping mechanism. Through the coordinated work of these components, the stable positioning and rapid installation of the guide rails are achieved.

Benefits of technology

Through the integrated design of auxiliary positioning device, the installation process is simplified, the work efficiency and practicality of the equipment are improved, and the operation complexity and time consumption are reduced for workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fixture equipment accessory devices, in particular to an auxiliary positioning device for an automobile sunroof guide rail, which can reduce installation procedures through integrated design of guide rail clamping and guide rail positioning, so that the working efficiency of equipment is improved, the practicability is improved, and the auxiliary positioning device comprises a magnetic suction head and a positioning device, the positioning devices are evenly installed on the magnetic suction head, each positioning device further comprises an adjusting device, a supporting device, a clamping mechanism, a telescopic device and a clamping mechanism, the connecting end of each adjusting device is rotationally connected with the output end of the magnetic suction head, a sliding groove is formed in each adjusting device, and each supporting device penetrates through the corresponding sliding groove to be slidably connected with the corresponding adjusting device. A mounting groove is formed in the adjusting device, the clamping mechanism penetrates through the mounting groove and is rotationally connected with the adjusting device, a hinge seat is arranged on the adjusting device, the telescopic device penetrates through the hinge seat and is rotationally connected with the adjusting device, and the clamping mechanisms are uniformly mounted on the adjusting device.
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Description

Technical Field

[0001] The utility model relates to the technical field of fixture equipment attachments, in particular to an auxiliary positioning device for a sunroof guide rail of an automobile. Background Art

[0002] In the process of daily life, cars are a common means of transportation. With the development of the times and the progress of the industrial process, the functions of cars have also changed with each passing day. Among them, the car sunroof can help to quickly replace the air in the car, especially when the vehicle is stationary or driving at a low speed. The negative pressure principle is used to extract the dirty air in the car and introduce fresh air, which helps to reduce the accumulation of harmful gases in the car, such as benzene and formaldehyde. As a high-end configuration of the vehicle, the sunroof not only beautifies the appearance of the car, but also improves the grade of the vehicle. For many consumers, it is a factor to consider when buying a car, which increases the market competitiveness and second-hand value of the car. The sunroof rail system is to ensure the sunroof The key component for smooth opening and closing, its design and production have been continuously improved along with the development of automobile sunroof technology; early sunroofs may adopt a relatively simple opening mechanism. With the advancement of technology, in order to achieve smooth, quiet, durable and well-sealed opening and closing of the sunroof, higher requirements are put forward for the material selection, precision processing and durability testing of the sunroof rails. During the installation of the sunroof rails, the sunroof rails need to be pressed and positioned. The most common sunroof installation equipment currently available is the magnetic clamp; the magnetic clamp is a device used to install the automobile sunroof rails in daily life, and it has been widely used in industrial production processes;

[0003] When using the existing magnetic clamp, the clamp is first sucked onto the top of the car, and after pressing the guide rail through the output end of the clamp, the drilling position is located and drilled with the help of measuring tools such as a tape measure to install the guide rail. It is found in the use of the existing suction cup clamp that the suction cup clamp has poor stability, and after fixing the guide rail during the positioning process, subsequent processes are required for drilling and assembly, which makes the process more cumbersome, resulting in low working efficiency of the equipment, and thus poor practicality. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an automobile sunroof guide rail auxiliary positioning device which can reduce the installation process by integrating guide rail clamping and guide rail positioning, thereby improving the working efficiency of the equipment and increasing the practicality.

[0005] The utility model discloses an auxiliary positioning device for a sunroof guide rail of an automobile, comprising a magnetic suction head and a positioning device, wherein the positioning device is evenly mounted on the magnetic suction head, the positioning device also comprises an adjusting device, a supporting device, a clamping mechanism, a telescopic device and a clamping mechanism, the connecting end of the adjusting device is rotatably connected with the output end of the magnetic suction head, a slide groove is provided on the adjusting device, the supporting device passes through the slide groove and is slidably connected with the adjusting device, an installation groove is provided on the adjusting device, the clamping mechanism passes through the installation groove and is rotatably connected with the adjusting device, a capstan is provided on the adjusting device, the telescopic device passes through the capstan and is rotatably connected with the adjusting device, and the clamping mechanism is evenly mounted on the adjusting device.

[0006] Preferably, the adjusting device also includes a rotating block, an elbow, a slider and a rotating knob. The connecting end of the rotating block is rotatably connected to the output end of the magnetic head. A mounting seat is provided on the rotating block. The elbow passes through the mounting seat and is rotatably connected to the rotating block. A long groove is provided on the elbow. The slider passes through the long groove and is slidably connected to the elbow. A rotating hole is provided on the slider. The rotating knob passes through the rotating hole and is threadedly connected to the slider.

[0007] Preferably, the supporting device also includes a spring, a supporting rod, a base and a rubber pad, the connecting end of the supporting rod passes through a slide groove and a sliding block for sliding connection, the connecting end of the spring and the connecting end of the supporting rod are fixedly mounted, the connecting end of the base is connected to the bottom end of the supporting rod, and the rubber pad is evenly installed on the base.

[0008] Preferably, the clamping mechanism also includes a motor, a reciprocating screw, an adjusting block, a screw, a support plate and a positioning rod. The reciprocating screw is evenly installed in the mounting groove and is rotatably connected to the slider. The mounting groove is equipped with a through hole. The connecting end of the motor is connected to the connecting end of the slider, and the output end of the motor is connected to the connecting end of the reciprocating screw through the through hole. A connecting seat is provided on the adjusting block. The support plate is rotatably connected to the adjusting block through the connecting seat. A clamping slot is provided on the adjusting block. The positioning rod is slidably connected to the adjusting block through the clamping slot. A screw hole is equipped on the connecting seat. The screw is threadedly connected to the connecting seat through the screw hole. The connecting end of the adjusting block is threadedly connected to the connecting end of the reciprocating screw.

[0009] Preferably, the telescopic device also includes a motor, an adjusting screw, a positioning plate, a telescopic block and a column. The positioning plate passes through the capstan and is rotatably connected to the slider. The positioning plate is provided with a positioning groove. The telescopic block passes through the positioning groove and is slidably connected to the positioning plate. The connecting end of the motor is connected to the connecting end of the positioning plate. A through hole is provided on the positioning plate. The output end of the motor passes through the through hole and is connected to the connecting end of the adjusting screw. A threaded hole is provided on the telescopic block. The adjusting screw passes through the threaded hole and is threadedly connected to the telescopic block. A groove is provided on the telescopic block. The column passes through the groove and is rotatably connected to the telescopic block.

[0010] Preferably, the clamping mechanism also includes a limit rod, a sliding sleeve and a bolt. The connecting ends of multiple groups of limit rods are connected to the output end of the telescopic block. The sliding sleeve is provided with limit holes. The multiple groups of limit rods pass through the corresponding limit holes and are slidably connected to the sliding sleeve. The sliding sleeve is provided with a tightening hole, and the bolt passes through the tightening hole and is threadedly connected to the sliding sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: in the process of installing the automobile sunroof guide rail, the sliding adjustment device adjusts its position and adjusts the height of the supporting device. During this process, the flipping adjustment device drives the supporting device to support the automobile, and cooperates with the magnetic suction head to adsorb the automobile, so as to support the equipment stably. During this process, the clamping mechanism is started to perform sliding adjustment, and the supporting end is inserted into the mounting hole of the guide rail for positioning, and the guide rail is pressed down to support with the support device. During this process, the drill bit is inserted into the clamping mechanism for fixing, and the telescopic device is started to slide horizontally along the horizontal position. By positioning and sliding, the convenience of drilling holes in the equipment is improved, the equipment process is simplified, thereby improving the working efficiency of the equipment, thereby increasing the practicality of an automobile sunroof guide rail auxiliary positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the connection structure of the magnetic suction head and the rotating block of the utility model;

[0014] Figure 3 It is a partial enlarged structural schematic diagram of A of the utility model;

[0015] Figure 4 It is a partial enlarged structural schematic diagram of B of the utility model;

[0016] Markings in the attached drawings: 1, magnetic head; 201, slide; 202, mounting groove; 203, capstan seat; 301, rotating block; 302, elbow; 303, slider; 304, knob; 305, mounting seat; 306, long slot; 307, rotating hole; 401, spring; 402, support rod; 403, base; 404, rubber pad; 501, motor; 502, reciprocating screw; 503, adjusting block; 504, screw; 505, Support plate; 506, positioning rod; 507, through hole; 508, connecting seat; 509, slot; 510, screw hole; 601, motor; 602, adjusting screw; 603, positioning plate; 604, telescopic block; 605, column; 606, positioning slot; 607, through hole; 608, threaded hole; 609, groove; 701, limiting rod; 702, sliding sleeve; 703, bolt; 704, limiting hole; 705, tightening hole. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] like Figures 1 to 4 As shown, the utility model is an auxiliary positioning device for a sunroof guide rail of an automobile, comprising a magnetic suction head 1 and a positioning device, the positioning device is evenly installed on the magnetic suction head 1, the positioning device also comprises an adjusting device, a supporting device, a clamping mechanism, a telescopic device and a clamping mechanism, the connecting end of the adjusting device is rotatably connected with the output end of the magnetic suction head 1, a slide groove 201 is provided on the adjusting device, the supporting device passes through the slide groove 201 and is slidably connected with the adjusting device, a mounting groove 202 is provided on the adjusting device, the clamping mechanism passes through the mounting groove 202 and is rotatably connected with the adjusting device, a hinge seat 203 is provided on the adjusting device, the telescopic device passes through the hinge seat 203 and is rotatably connected with the adjusting device, and the clamping mechanism is evenly installed on the adjusting device; by adjusting the sunroof guide rail of the automobile During the installation of the rail, the sliding adjustment device is used to adjust its position and the height of the supporting device. During this process, the flipping adjustment device is used to drive the supporting device to support the car, and the magnetic suction head is used to adsorb the car to support the equipment stably. During this process, the clamping mechanism is started to perform sliding adjustment, and the supporting end is inserted into the mounting hole of the guide rail for positioning, and the support device is used to press down the guide rail for support. During this process, the drill bit is inserted into the clamping mechanism for fixing, and the telescopic device is started to slide horizontally along the horizontal position. By positioning and sliding, the convenience of drilling holes in the equipment is improved, the equipment process is simplified, thereby improving the working efficiency of the equipment and increasing its practicality.

[0019] As a preferred embodiment of the above embodiment, the adjustment device also includes a rotating block 301, an elbow 302, a slider 303 and a knob 304. The connecting end of the rotating block 301 is rotatably connected to the output end of the magnetic head 1. A mounting seat 305 is provided on the rotating block 301. The elbow 302 passes through the mounting seat 305 and is rotatably connected to the rotating block 301. A long slot 306 is provided on the elbow 302. The slider 303 passes through the long slot 306 and is slidably connected to the elbow 302. A rotating hole 307 is provided on the slider 303. The knob 304 passes through the rotating hole 307 and is threadedly connected to the slider 303. In the process of adjusting the equipment, the rotating block is rotated to adjust the position of the elbow. The equipment is installed on the elbow as a whole, and the elbow rotating equipment rotates accordingly. In this process, the slider is slid to slide on the elbow to adjust the height, and the knob is rotated to fix it, so as to adjust the height of the supporting device, improve the adjustment performance of the equipment, thereby improving the working efficiency of the equipment and increasing practicality.

[0020] As a preferred embodiment of the above embodiment, the supporting device also includes a spring 401, a support rod 402, a base 403 and a rubber pad 404. The connecting end of the support rod 402 passes through the slide groove 201 and the slider 303 for sliding connection. The connecting end of the spring 401 and the connecting end of the support rod 402 are fixedly mounted, the connecting end of the base 403 is connected to the bottom end of the support rod 402, and the rubber pad 404 is evenly installed on the base 403. In the process of supporting the equipment, the elbow presses down the base connected to it to press down the top of the guide rail, and the support rod slides in the slide groove and the spring rebounds to provide support for the equipment. The rubber pad is installed to protect the bottom of the base to prevent the equipment from causing wear to the car, thereby improving the stability of the equipment processing, thereby improving the working efficiency of the equipment and increasing practicality.

[0021] As a preferred embodiment of the above embodiment, the clamping mechanism also includes a motor 501, a reciprocating screw rod 502, an adjusting block 503, a screw rod 504, a support plate 505 and a positioning rod 506. The reciprocating screw rod 502 is evenly installed in the installation groove 202 and is rotatably connected to the slider 303. The installation groove 202 is equipped with a through hole 507. The connecting end of the motor 501 is connected to the connecting end of the slider 303. The output end of the motor 501 is connected to the connecting end of the reciprocating screw rod 502 through the through hole 507. The adjusting block 503 is provided with a connecting seat 508. The support plate 505 is rotatably connected to the adjusting block 503 through the connecting seat 508. The adjusting block 503 is provided with a clamping slot 509. The positioning rod 506 is slidably connected to the adjusting block 503 through the clamping slot 509. The connecting seat 508 A screw hole 510 is provided on it, and the screw rod 504 passes through the screw hole 510 and is threadedly connected to the connecting seat 508, and the connecting end of the adjustment block 503 is threadedly connected to the connecting end of the reciprocating screw rod 502; in the process of positioning the guide rail, the motor is started to drive the reciprocating screw rod to rotate, and the adjustment block connected to the reciprocating screw rod slides in the installation groove, driving the position of the support plate connected to it to be adjusted, so that it drives the positioning rod to align with the longitudinal position of the installation guide rail, and performs horizontal alignment by sliding the positioning rod, and positioning is performed by inserting the positioning rod into the installation hole of the guide rail. When the installation hole is changed, there is no need to change the equipment, and only the position of the magnetic suction head needs to be changed, thereby improving the convenience of equipment positioning, thereby improving the working efficiency of the equipment and increasing practicality.

[0022] As a preferred embodiment of the above embodiment, the telescopic device also includes a motor 601, an adjusting screw rod 602, a positioning plate 603, a telescopic block 604 and a column 605. The positioning plate 603 passes through the capstan 203 and is rotatably connected to the slider 303. The positioning plate 603 is provided with a positioning groove 606. The telescopic block 604 passes through the positioning groove 606 and is slidably connected to the positioning plate 603. The connecting end of the motor 601 is connected to the connecting end of the positioning plate 603. The positioning plate 603 is provided with a through hole 607. The output end of the motor 601 is connected to the connecting end of the adjusting screw rod 602 through the through hole 607. The telescopic block 604 is provided with a threaded hole 608. The adjusting screw rod 602 passes through the threaded hole 608 is threadedly connected with the telescopic block 604, and a groove 609 is provided on the telescopic block 604. The column 605 passes through the groove 609 and is rotatably connected with the telescopic block 604; in the process of telescoping the equipment, the column is rotated to be rotated and pulled out from the groove, and the column and the support plate are supported in cooperation with the rotating positioning plate to provide support for the telescopic block when the drilling machine is pressed down. In this process, the starting motor drives the adjusting screw to slide in the telescopic block, drives the telescopic block to extend and retract on the positioning plate, aligns the output end of the clamping mechanism with the position where a hole needs to be punched, realizes short-distance adjustment, and improves the convenience of use of the equipment, thereby improving the working efficiency of the equipment and increasing practicality.

[0023] As a preferred embodiment of the above embodiment, the clamping mechanism also includes a limit rod 701, a sleeve 702 and a bolt 703. The connecting ends of multiple groups of limit rods 701 are connected to the output ends of the telescopic block 604. The sleeve 702 is provided with limit holes 704. The multiple groups of limit rods 701 pass through the corresponding limit holes 704 and are slidably connected to the sleeve 702. The sleeve 702 is provided with a tightening hole 705. The bolt 703 passes through the tightening hole 705 and is threadedly connected to the sleeve 702. In the process of clamping the equipment, the drilling machine is inserted into the sleeve, the bolt is turned to fix the drilling machine, and the sleeve is driven to slide along the predetermined position of the limit rod by manual downward pressure, so as to improve the drilling stability of the equipment, thereby improving the working efficiency of the equipment and increasing practicality.

[0024] The utility model discloses an auxiliary positioning device for automobile sunroof guide rails. When working, during the process of installing the automobile sunroof guide rails, the sliding adjustment device adjusts its position and adjusts the height of the supporting device. During this process, the flip adjustment device drives the supporting device to support the automobile, and cooperates with the magnetic suction head to adsorb the automobile, so as to support and stabilize the equipment. During this process, the clamping mechanism is started to slide and adjust, the supporting end is inserted into the installation hole of the guide rail for positioning, and the guide rail is pressed down to support with the support device. During this process, the drill bit is inserted into the clamping mechanism for fixing, the telescopic device is started to slide horizontally along the horizontal position, the rotating block is rotated to adjust the position of the elbow, the equipment is installed on the elbow as a whole, and the elbow rotating device rotates accordingly. During this process, the sliding slider slides on the elbow to adjust its height, the rotating knob is rotated to fix it, and the elbow presses down the base connected thereto to press down the top of the guide rail, and cooperates with the support rod to slide in the slide groove and the spring to rebound to adjust the equipment. The equipment provides support, and rubber pads are installed to protect the bottom of the base to prevent the equipment from causing wear to the car. The starting motor drives the reciprocating screw to rotate, and the adjusting block connected to the reciprocating screw slides in the mounting groove, driving the position of the supporting plate connected thereto to be adjusted, so that it drives the positioning rod to align with the longitudinal position of the mounting guide rail, and the lateral alignment is performed by sliding the positioning rod, and the positioning rod is inserted into the mounting hole of the guide rail for positioning. When the mounting hole is changed, there is no need to change the equipment, and only the position of the magnetic head needs to be changed. The column is rotated to be rotated and pulled out from the groove, and the column and the support plate are supported by rotating the positioning plate to provide support for the telescopic block when the drilling machine is pressed down. In this process, the starting motor drives the adjusting screw to slide in the telescopic block, and drives the telescopic block to extend and retract on the positioning plate, aligning the output end of the clamping mechanism with the position where a hole needs to be punched, realizing short-distance adjustment, inserting the drilling machine into the sliding sleeve, and fixing the drilling machine by rotating the bolt, and driving the sliding sleeve to slide along the predetermined position of the limit rod by manual downward pressure.

[0025] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

[0026] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An auxiliary positioning device for a sunroof rail of an automobile, comprising a magnetic suction head (1) and a positioning device, wherein the positioning device is evenly mounted on the magnetic suction head (1); characterized in that: The positioning device also includes an adjusting device, a supporting device, a clamping mechanism, a telescopic device and a clamping mechanism. The connecting end of the adjusting device is rotatably connected to the output end of the magnetic suction head (1). The adjusting device is provided with a slide groove (201). The supporting device passes through the slide groove (201) and is slidably connected to the adjusting device. The adjusting device is provided with a mounting groove (202). The clamping mechanism passes through the mounting groove (202) and is rotatably connected to the adjusting device. The adjusting device is provided with a capstan (203). The telescopic device passes through the capstan (203) and is rotatably connected to the adjusting device. The clamping mechanism is evenly mounted on the adjusting device.

2. The vehicle sunroof guide rail auxiliary positioning device according to claim 1, characterized in that: The adjusting device further comprises a rotating block (301), an elbow (302), a slider (303) and a rotating knob (304); the connecting end of the rotating block (301) is rotatably connected to the output end of the magnetic head (1); a mounting seat (305) is provided on the rotating block (301); the elbow (302) passes through the mounting seat (305) and is rotatably connected to the rotating block (301); a long slot (306) is provided on the elbow (302); the slider (303) passes through the long slot (306) and is slidably connected to the elbow (302); a rotating hole (307) is provided on the slider (303); and the rotating knob (304) passes through the rotating hole (307) and is threadedly connected to the slider (303).

3. The vehicle sunroof guide rail auxiliary positioning device according to claim 2, characterized in that: The supporting device further comprises a spring (401), a supporting rod (402), a base (403) and a rubber pad (404); the connecting end of the supporting rod (402) passes through the slide groove (201) and is slidably connected to the slider (303); the connecting end of the spring (401) and the connecting end of the supporting rod (402) are fixedly mounted; the connecting end of the base (403) is connected to the bottom end of the supporting rod (402); and the rubber pad (404) is evenly mounted on the base (403).

4. The automobile sunroof guide rail auxiliary positioning device as claimed in claim 3, characterized in that: The clamping mechanism also includes a motor (501), a reciprocating screw rod (502), an adjusting block (503), a screw rod (504), a support plate (505) and a positioning rod (506). The reciprocating screw rod (502) is evenly installed in the installation groove (202) and is rotatably connected to the slider (303). The installation groove (202) is matched with a through hole (507). The connecting end of the motor (501) is connected to the connecting end of the slider (303). The output end of the motor (501) passes through the through hole (507) and is connected to the connecting end of the reciprocating screw rod (502). The node block (503) is provided with a connecting seat (508), the supporting plate (505) passes through the connecting seat (508) and is rotatably connected to the adjusting block (503), the adjusting block (503) is provided with a slot (509), the positioning rod (506) passes through the slot (509) and is slidably connected to the adjusting block (503), the connecting seat (508) is matched with a screw hole (510), the screw rod (504) passes through the screw hole (510) and is threadedly connected to the connecting seat (508), and the connecting end of the adjusting block (503) is threadedly connected to the connecting end of the reciprocating screw rod (502).

5. The automobile sunroof guide rail auxiliary positioning device according to claim 4, characterized in that: The telescopic device also includes a motor (601), an adjusting screw rod (602), a positioning plate (603), a telescopic block (604) and a column (605). The positioning plate (603) passes through the capstan seat (203) and the slider (303) to be rotatably connected. The positioning plate (603) is provided with a positioning groove (606). The telescopic block (604) passes through the positioning groove (606) and is slidably connected to the positioning plate (603). The connecting end of the motor (601) is connected to the connecting end of the positioning plate (603). The position plate (603) is provided with a through hole (607), the output end of the motor (601) passes through the through hole (607) and is connected to the connecting end of the adjusting screw rod (602), the telescopic block (604) is provided with a threaded hole (608), the adjusting screw rod (602) passes through the threaded hole (608) and is threadedly connected to the telescopic block (604), the telescopic block (604) is provided with a groove (609), and the column (605) passes through the groove (609) and is rotatably connected to the telescopic block (604).

6. The vehicle sunroof guide rail auxiliary positioning device as claimed in claim 5, characterized in that: The clamping mechanism also includes a limit rod (701), a sliding sleeve (702) and a bolt (703); the connection ends of the plurality of limit rods (701) are connected to the output end of the telescopic block (604); the sliding sleeve (702) is provided with a limit hole (704); the plurality of limit rods (701) respectively pass through the corresponding limit holes (704) and are slidably connected to the sliding sleeve (702); the sliding sleeve (702) is provided with a tightening hole (705); the bolt (703) passes through the tightening hole (705) and is threadedly connected to the sliding sleeve (702).