Automobile metal plate dent repairing device

By using a combination of silicone suction cup heating and vibration blocks in the automotive sheet metal dent repair device, the problems of repair difficulties and unstable movement caused by the high hardness of the device at room temperature are solved, achieving efficient and stable dent repair results.

CN224222363UActive Publication Date: 2026-05-12SICHUAN VOCATIONAL & TECHN COLLEGE OF COMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN VOCATIONAL & TECHN COLLEGE OF COMM
Filing Date
2025-03-11
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing automotive sheet metal dent repair devices require significant suction to remove dents at room temperature, making the repair process cumbersome. Furthermore, the bottom wheels of the device are prone to slipping and unstable, affecting the repair results.

Method used

The repair process employs a combination of silicone suction cups, heating rods, and vibration blocks to enhance the softening effect on the metal. Furthermore, the stability and adaptability of the device are improved through the use of moving and lifting components.

Benefits of technology

It simplifies the repair process, improves the efficiency and effectiveness of dent repair, avoids damage to the paint, and ensures the stability and accuracy of the device during movement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile metal plates, and particularly relates to an automobile metal plate dent repairing device which comprises an automobile dent repairing assembly, a lifting assembly is installed at the bottom of the automobile dent repairing assembly, a moving assembly is installed at the bottom of the lifting assembly, and the automobile dent repairing assembly comprises a supporting square block. A hydraulic push rod is installed on one side of the supporting square block, a silica gel suction cup is fixedly connected to the end of the hydraulic push rod, a first spring is fixedly connected to the inner wall of the silica gel suction cup, an electric heating rod is installed at the end of the first spring, the top of the silica gel suction cup communicates with an air extraction opening, and an air extraction hose communicates with the end of the air extraction opening. The other end of the air suction hose is communicated with an air suction pump; according to the automobile metal plate repairing device, metal plate repairing is carried out on dents of an automobile through suction of the suction cup, the heating and vibrating mechanism is arranged in an auxiliary mode, more labor is saved during repairing, and the flatness after repairing is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive sheet metal technology, specifically an automotive sheet metal dent repair device. Background Technology

[0002] Using suction cups to repair sheet metal on a car involves placing a suction cup on the dented area, using a vacuum pump to remove the air from the suction cup, then pulling the suction cup to pull out the dented area, and finally tapping it back into place. This method is suitable for smaller dents, is simple to operate, and has good results.

[0003] In Chinese Patent 202321259462.6, this utility model provides a device for repairing dents in the sheet metal of a new energy vehicle door. It includes a movable base, with electric telescopic rods at the four corners of the top of the movable base. The tops of the electric telescopic rods are fixedly connected to the bottom of a mounting plate via support rods. A through groove is formed on one side of the top of the mounting plate, and a repair component is provided on one side of the inner wall of the through groove. Auxiliary components are provided on both sides of the inner wall of the through groove. A cylinder, in conjunction with an output rod, drives a mounting plate to move. The mounting plate, in conjunction with a connecting rod, drives a reset suction cup to move until it contacts and is subjected to force on the dented area of ​​the door. An intake and exhaust valve then expels internal gas. During movement, the mounting plate, in conjunction with a fixed plate, compresses several movable telescopic rods and springs. When repair begins, the cylinder, in conjunction with the output rod, mounting plate, and connecting rod, drives the reset suction cup to repair the damaged area of ​​the door. Simultaneously, the elasticity of several springs drives the reset suction cup to reset, improving the repair effect on the dents in the sheet metal of the door.

[0004] Existing automotive dent repair devices rely solely on suction to repair the car's surface. Since metal is relatively hard at room temperature, significant suction is required to pull the dent outwards. Even after pulling, creases remain around the dent, necessitating manual hammering to level it, making the process cumbersome. Furthermore, while the device is equipped with casters for mobility, even with the brakes applied, the small contact area between the wheels and the ground can cause slippage during repair. Additionally, pulling on the dent generates a backward reaction force, making the chassis unstable and the overall support insufficient, leading to displacement that can hinder the repair process.

[0005] Therefore, a device for repairing automotive sheet metal dents is proposed to address the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this paper solves the problem that current automotive sheet metal dent repair devices rely solely on suction to repair the car surface. Metal is relatively hard at room temperature, requiring significant suction to pull the dent outwards. Even after pulling, creases remain around the dent, necessitating manual hammering to level it, making the process cumbersome. Furthermore, while the device is equipped with casters for mobility, even with the brakes applied, the small contact area between the wheels and the ground during repair can lead to slippage. Additionally, pulling on the dent causes a backward reaction force, resulting in unstable chassis and insufficient support, making the device prone to displacement during the pulling process and affecting the repair.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The automotive dent repair device of this utility model includes an automotive dent repair component. A lifting component is installed at the bottom of the automotive dent repair component, and a moving component is installed at the bottom of the lifting component. The automotive dent repair component includes a support block. A hydraulic push rod is installed on one side of the support block, and a silicone suction cup is fixedly connected to the end of the hydraulic push rod. A first spring is fixedly connected to the inner wall of the silicone suction cup, and a heating rod is installed at the end of the first spring. An air extraction port is connected to the top of the silicone suction cup, and an air extraction hose is connected to the end of the air extraction port. The other end of the air extraction hose is connected to an air extraction pump. An operation panel is installed on the top of the support block, and a support crossbar is provided on the side of the support block. A second spring is installed at the end of the support crossbar, and a vibrator is fixedly connected to the other end of the second spring. A vibration block is fixedly connected to the side of the vibrator.

[0008] Preferably, the heating rod forms an elastic structure with the silicone suction cup via a first spring, and the inner cavity of the silicone suction cup is connected to the suction pump via an air extraction port and a suction hose.

[0009] Preferably, the vibrating block forms an elastic structure with the supporting crossbar via the second spring, and two supporting crossbars are symmetrically arranged about the vertical central axis of the hydraulic push rod.

[0010] Preferably, the mobile component includes a repair device chassis, with movable wheels installed at the bottom of the repair device chassis, and a side sliding opening fixedly connected to the side of the repair device chassis. A lifting block is slidably connected inside the side sliding opening, a top limiting block is fixedly connected to the top of the lifting block, and a pressing fixing plate is fixedly connected to the bottom of the lifting block. A connecting block is fixedly connected to the side of the pressing fixing plate, and a third spring is fixedly connected to the top of the connecting block.

[0011] Preferably, the pressing and fixing plate and the lifting block are arranged vertically, and the pressing and fixing plate forms an elastic structure with the side sliding opening through the third spring.

[0012] Preferably, the lifting assembly includes a threaded support column, a limiting groove is formed on the side of the threaded support column, and a limiting slider is slidably connected inside the limiting groove. A lifting cylinder is fixedly connected to the side of the limiting slider, and a rotating ring is integrally connected to the bottom end of the lifting cylinder. A lifting nut is rotatably connected to the outside of the rotating ring.

[0013] Preferably, the lifting cylinder forms a lifting structure through a lifting nut and a threaded support, and the lifting cylinder forms a rotating structure through a limiting slider and a lifting nut, and the lifting cylinder forms a sliding structure through a limiting groove, a limiting slider and a threaded support.

[0014] The advantages of this utility model are:

[0015] 1. This utility model is equipped with a car dent repair component. An electric heating rod is installed inside the suction cup to heat the dent during the repair process, which helps to reduce the hardness of the metal in the dent and makes it easier to pull out and smooth it. Two vibrating blocks are set on both sides of the suction cup. While pulling outward, they vibrate the dent, similar to tapping, to assist in the repair and make the pulled-out surface smoother. The silicone vibrating blocks will not damage the paint on the car surface.

[0016] 2. This utility model is equipped with a movable component. The bottom of the device is equipped with movable wheels to facilitate the movement of the entire device. Two pressing and fixing plates are provided on the side. During the movement, the pressing and fixing plates are pulled upward by the action of the third spring without affecting the movement. When it is moved to the designated position, it can be pressed down to fix the pressing and fixing plates to the ground, which facilitates the limitation and fixation of the entire device and improves the stability of the entire device when the recessed part is pulled.

[0017] 3. This utility model is equipped with a lifting component. By rotating the lifting nut, the lifting cylinder can adjust the height of the car dent repair component on top, so that it can be aligned with the dent at different heights for repair. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a three-dimensional structural schematic diagram of the overall side view of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention from the overall front view;

[0021] Figure 3 This is an exploded structural diagram of the lifting component of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the automotive dent repair component of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the mobile component part of this utility model.

[0024] In the diagram: 1. Car dent repair component; 2. Lifting component; 3. Moving component; 101. Support block; 102. Hydraulic push rod; 103. Silicone suction cup; 104. First spring; 105. Heating rod; 106. Air extraction port; 107. Air extraction hose; 108. Air extraction pump; 109. Control panel; 110. Support crossbar; 111. Second spring; 112. Vibrator; 113. Vibrating block; 201. Threaded support column; 202. Limiting slide groove; 203. Limiting slider; 204. Lifting cylinder; 205. Rotating ring; 206. Lifting nut; 301. Repair device chassis; 302. Moving wheel; 303. Side slide; 304. Lifting block; 305. Top limiting block; 306. Pressing and fixing plate; 307. Connecting block; 308. Third spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figure 1 As shown, an automotive dent repair device includes an automotive dent repair component 1, a lifting component 2 installed at the bottom of the automotive dent repair component 1, and a moving component 3 installed at the bottom of the lifting component 2.

[0028] like Figure 4As shown, an automotive dent repair device is disclosed. The automotive dent repair component 1 is used for repairing dents on a vehicle. The automotive dent repair component 1 includes a support block 101. A hydraulic push rod 102 is mounted on one side of the support block 101, and a silicone suction cup 103 is fixedly connected to the end of the hydraulic push rod 102. A first spring 104 is fixedly connected to the inner wall of the silicone suction cup 103, and a heating rod 105 is mounted on the end of the first spring 104. An air extraction port 106 is connected to the top of the silicone suction cup 103, and an air extraction hose 107 is connected to the end of the air extraction port 106. An air extraction pump 108 is connected to the other end of the air extraction hose 107. An operation panel 109 is mounted on the top of the support block 101, and a support crossbar 110 is provided on the side of the support block 101. A second spring 111 is mounted on the end of the support crossbar 110, and a vibrator 112 is fixedly connected to the other end of the second spring 111. Furthermore, a vibrating block 113 is fixedly connected to the side of the vibrator 112. The heating rod 105 forms an elastic structure with the silicone suction cup 103 through the first spring 104. The inner cavity of the silicone suction cup 103 is connected to the air pump 108 through the air extraction port 106 and the air extraction hose 107. The vibrating block 113 forms an elastic structure with the support crossbar 110 through the second spring 111. Two support crossbars 110 are symmetrically arranged about the vertical central axis of the hydraulic push rod 102. The heating rod 105 is installed inside the suction cup, which can heat the dent during the repair process, which can reduce the hardness of the metal in the dent and make it easier to pull out and smooth it. Two vibrating blocks 113 are set on both sides of the suction cup. While pulling outward, they vibrate it, similar to knocking to assist in the repair, which makes the pulled-out surface smoother. Furthermore, the silicone vibrating block 113 will not damage the paint on the car surface.

[0029] like Figure 5As shown, an automotive sheet metal dent repair device includes a movable component 3 for moving and fixing the device. The movable component 3 includes a repair device chassis 301, with movable wheels 302 mounted on the bottom of the chassis 301. A side sliding opening 303 is fixedly connected to the side of the chassis 301, and a lifting block 304 is slidably connected inside the side sliding opening 303. A top limiting block 305 is fixedly connected to the top of the lifting block 304, and a pressing and fixing plate 306 is fixedly connected to the bottom of the lifting block 304. A connecting block 307 is fixedly connected to the side of the pressing and fixing plate 306, and a third spring is fixedly connected to the top of the connecting block 307. The spring 308, the pressing and fixing plate 306, and the lifting block 304 are vertically arranged. The pressing and fixing plate 306 forms an elastic structure with the side sliding opening 303 through the third spring 308. The bottom of the device is provided with a moving wheel 302 to facilitate the movement of the entire device. There are two pressing and fixing plates 306 on the side. During the movement, the pressing and fixing plates 306 are pulled upward by the action of the third spring 308 without affecting the movement. When it is moved to the designated position, it can be pressed down to fix the pressing and fixing plate 306 to the ground, which can facilitate the limitation and fixation of the entire device and improve the stability of the entire device when the recess is pulled.

[0030] like Figure 3 As shown, an automotive sheet metal dent repair device includes a lifting assembly 2 for adaptively adjusting the height of the suction cup. The lifting assembly 2 includes a threaded support column 201, with a limiting groove 202 on its side. A limiting slider 203 is slidably connected inside the limiting groove 202. A lifting cylinder 204 is fixedly connected to the side of the limiting slider 203. A rotating ring 205 is integrally connected to the bottom end of the lifting cylinder 204, and a lifting nut 206 is rotatably connected to the outside of the rotating ring 205. The lifting cylinder 204 and the threaded support column 201 form a lifting structure through the lifting nut 206. The lifting cylinder 204 and the lifting nut 206 form a rotating structure through the limiting slider 203. The lifting cylinder 204 and the threaded support column 201 form a sliding structure through the limiting groove 202, the limiting slider 203, and the lifting nut 206. By rotating the lifting nut 206, the lifting cylinder 204 can adjust the height of the automotive dent repair assembly 1 on its top, allowing it to be aligned with dents at different heights for repair.

[0031] Working principle: Move this device near the car that needs sheet metal repair. During the movement, the third spring 308 will pull the pressing and fixing plate 306 upward, so that the pressing and fixing plate 306 will not touch the ground. After moving to the designated position, first press the brake pad of the moving wheel 302. At the same time, the operator can step on the two pressing and fixing plates 306 with both feet to limit and fix the device. Then rotate the lifting nut 206. Since the lifting nut 206 and the threaded support 201 are threadedly connected, when the lifting nut 206 is rotated, the lifting cylinder 204 will rise or fall on the threaded support 201, thereby adjusting the height of the car dent repair component 1 on top so that the height of its end is aligned with the dent on the car surface.

[0032] Next, the silicone suction cup 103 is attached to the dent, and the heating rod 105 is activated to heat the air inside the silicone suction cup 103. The heating rod 105 is equipped with a temperature control mechanism. After the surface of the silicone suction cup 103, i.e., the dent, is heated to a suitable temperature, the heating is stopped, and the air pump 108 is activated to extract the air from inside the silicone suction cup 103 through the air extraction port 106 and the air extraction hose 107, creating a negative pressure environment inside the silicone suction cup 103, which firmly adheres the silicone suction cup 103 to the dent. At the same time, vibration... Block 113 is attached to the side of the dent, and vibrator 112 is activated to vibrate and tap the dent with the vibrating block 113. The vibrating block 113 is made of silicone material, which will not damage the paint on the car surface. At the same time, the hydraulic push rod 102 moves the silicone suction cup 103 backward to pull the dent out of the car for repair. After pulling it out, the air pump 108 injects air into the silicone suction cup 103 through the air port 106 and the air suction hose 107, so that the silicone suction cup 103 can be removed from the car surface.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for repairing dents in automotive sheet metal, characterized in that: The vehicle includes a dent repair component (1), a lifting component (2) is installed at the bottom of the vehicle dent repair component (1), and a moving component (3) is installed at the bottom of the lifting component (2). The automotive dent repair component (1) includes a support block (101), a hydraulic push rod (102) is installed on one side of the support block (101), and a silicone suction cup (103) is fixedly connected to the end of the hydraulic push rod (102). A first spring (104) is fixedly connected to the inner wall of the silicone suction cup (103), and a heating rod (105) is installed at the end of the first spring (104). An air extraction port (106) is connected to the top of the silicone suction cup (103), and the end of the air extraction port (106) is connected to... There is a suction hose (107), and the other end of the suction hose (107) is connected to a suction pump (108). An operation panel (109) is installed on the top of the support block (101), and a support crossbar (110) is provided on the side of the support block (101). A second spring (111) is installed at the end of the support crossbar (110), and a vibrator (112) is fixedly connected to the other end of the second spring (111), and a vibrating block (113) is fixedly connected to the side of the vibrator (112).

2. The automotive sheet metal dent repair device according to claim 1, characterized in that: The heating rod (105) forms an elastic structure with the silicone suction cup (103) via the first spring (104), and the inner cavity of the silicone suction cup (103) forms a communication structure with the air extraction port (106), the air extraction hose (107) and the air extraction pump (108).

3. The automotive sheet metal dent repair device according to claim 1, characterized in that: The vibrating block (113) forms an elastic structure with the support crossbar (110) through the second spring (111), and there are two support crossbars (110) symmetrically arranged about the vertical central axis of the hydraulic push rod (102).

4. The automotive sheet metal dent repair device according to claim 1, characterized in that: The moving component (3) includes a repair device chassis (301), with a moving wheel (302) installed at the bottom of the repair device chassis (301), and a side sliding opening (303) fixedly connected to the side of the repair device chassis (301), and a lifting block (304) slidably connected inside the side sliding opening (303), a top limiting block (305) fixedly connected to the top of the lifting block (304), and a pressing fixing plate (306) fixedly connected to the bottom of the lifting block (304), a connecting block (307) fixedly connected to the side of the pressing fixing plate (306), and a third spring (308) fixedly connected to the top of the connecting block (307).

5. The automotive sheet metal dent repair device according to claim 4, characterized in that: The pressing and fixing plate (306) and the lifting block (304) are set vertically, and the pressing and fixing plate (306) forms an elastic structure with the side sliding opening (303) through the third spring (308).

6. The automotive sheet metal dent repair device according to claim 1, characterized in that: The lifting assembly (2) includes a threaded support column (201), a limiting groove (202) is provided on the side of the threaded support column (201), and a limiting slider (203) is slidably connected inside the limiting groove (202). A lifting cylinder (204) is fixedly connected to the side of the limiting slider (203), and a rotating ring (205) is integrally connected to the bottom end of the lifting cylinder (204), and a lifting nut (206) is rotatably connected to the outside of the rotating ring (205).

7. The automotive sheet metal dent repair device according to claim 6, characterized in that: The lifting cylinder (204) forms a lifting structure through the lifting nut (206) and the threaded support (201), and the lifting cylinder (204) forms a rotating structure through the limiting slider (203) and the lifting nut (206), and the lifting cylinder (204) forms a sliding structure through the limiting groove (202), the limiting slider (203) and the threaded support (201).