A drawing device for repairing automobile body

Abstract

The utility model discloses a kind of drawing device for automobile body repair, comprising: square bar, its outer side left side is integrally provided with protruding part, its top left side is provided with clamping groove;Bonding block is used to apply hot melt adhesive and the inner recess of the outer side of automobile body bonding, and is connected in square bar left end;Square guide sleeve, it is set in square bar outer side.The utility model is provided with a series of structures, it is convenient to be directly outward shock and pull outside after bonding connection by simple transverse movement mode, using the instantaneous high pressure generated by impact, it can better exert larger instantaneous external pulling force to effectively pull and repair work, compared with directly exerting pulling force hand easy to slip phenomenon, avoid falling phenomenon caused by hand slip due to instantaneous exertion larger pulling force, improve pulling use effect;And square guide sleeve can be locked after use conveniently and quickly, prevent not using time square guide sleeve random slip and lead to collision noise phenomenon when carrying.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair equipment technology, specifically a pull-out device for automotive body repair. Background Technology

[0002] With the rapid development of my country's automobile industry and the continuous high-speed growth of car ownership, traffic accidents are also increasing year by year. When a car is involved in a collision or scrape, the external panels of the car body will be dented and deformed. After an accident, the vehicle needs to be repaired and restored. When the external dent and deformation of the car body is not serious, the repair work can be carried out by external pulling and resetting without disassembly. Compared with the method of disassembling the shell and other structures to repair the inside by hammering, this method has a faster and more convenient repair effect when the external panel dent is not serious. Existing pull-out methods for minor dents on the exterior of car bodies typically involve bonding multiple hot melt adhesive strips to the dented area and then pulling outwards by applying force to the strips. Alternatively, a pull rod can be bonded to the dented area using hot melt adhesive. However, these methods have several drawbacks: applying force directly outwards after bonding makes it difficult to apply significant instantaneous pulling force effectively, and it is prone to hand slippage, potentially leading to falls due to slippage when applying significant instantaneous pulling force. Consequently, the pull-out effect is unsatisfactory. Therefore, this application proposes a pull-out device for automotive body repair to address the aforementioned problems. Summary of the Invention

[0003] The purpose of this invention is to provide a pull-out device for automobile body repair, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pull-out device for automobile body repair, comprising: The square rod has a protrusion integrally formed on the left side of its outer side and a slot opened on the left side of its top. The adhesive block is used to apply hot melt adhesive to the recessed area on the outside of the car body and to connect to the left end of the square bar; the adhesive block is provided so that personnel can apply hot melt adhesive with a hot melt glue gun on its left side and bond it to the recessed area on the outside of the car body using hot melt adhesive for convenient bonding. A square guide sleeve is fitted on the outside of a square rod. Two anti-wear balls that movably contact the outside of the square rod are movably embedded on the inner walls of its four sides. Two L-shaped support rods are fixedly connected to its top, and a T-shaped handle is fixedly connected between the two L-shaped support rods. The shock-traction assembly is fixedly connected to the right end of the square rod and the right side of the square guide sleeve; The elastic locking component is embedded and fixed on the top of the square guide sleeve and is movably locked in the slot. The elastic locking component is used to conveniently lock and restrict the square guide sleeve when not in use, preventing the square guide sleeve from sliding randomly when not in use. It is also used to allow personnel to easily and quickly unlock the T-shaped handle by hooking it with their fingers. The shock-pulling component is used to generate a rightward impact force when the square guide sleeve is unlocked and slid to the right by the personnel. The rightward impact force effectively shocks and moves the square rod to the right, so that it can pull the concave part of the car body outward and reset through the adhesive block and the adhesive point.

[0005] Preferably, the adhesive block is welded to the left end of the square rod.

[0006] Preferably, the adhesive block is detachably connected to the left end of the square rod.

[0007] Preferably, the adhesive block is in movable contact with the left end of the square rod, the left end of the square rod is provided with a threaded groove, an elastic rubber block in a compressed state is bonded and fixed on the inner wall of the right side of the threaded groove, and a threaded column is welded to the center of the right side of the adhesive block, the threaded column is threaded into the threaded groove and squeezed into contact with the left side of the elastic rubber block.

[0008] Preferably, the shock-pulling assembly includes an impact sleeve and a shock block. The shock block is fixedly connected to the right end of the square rod, and the impact sleeve is fixedly connected to the right side of the square guide sleeve. The impact sleeve is located on the left side of the shock block and cooperates with it. The impact sleeve is sleeved on the outside of the square rod but does not contact the outside of it.

[0009] Preferably, the elastic locking assembly includes a rectangular sleeve, a rectangular slider, a locking post, a spring, and a U-shaped handle. The bottom of the rectangular sleeve is set as an opening and is embedded and fixed to the top of the square guide sleeve. The rectangular slider is slidably fitted inside the rectangular sleeve. The bottom end of the locking post is movably fitted into the locking groove and is set as an arc structure. The rectangular slider is fixedly fitted on the locking post. The rectangular sleeve is slidably fitted on the locking post. The spring is fixedly connected between the top of the rectangular slider and the inner wall of the top of the rectangular sleeve. The spring is movably fitted on the locking post. The top of the U-shaped handle is set as an arc structure and is located below the T-shaped handle. The U-shaped handle is fixedly connected to the top of the locking post.

[0010] Preferably, a rubber pad is glued and fixed to the right side of the protrusion on the left side of the outer side of the square rod, and the right side of the rubber pad is in movable contact with the left side of the square guide sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the combination of the set adhesive block, square rod, square guide sleeve, anti-wear ball, T-shaped handle, shock-pulling component and elastic locking component, it can directly shock-pull outward from the outside by simple lateral movement after the adhesive connection. Utilizing the instantaneous high pressure generated by the impact, it can better apply a larger instantaneous external pulling force for effective pull-out repair work. Compared with the phenomenon of easy hand slippage when directly applying pulling force, it avoids the phenomenon of falling due to hand slippage when applying a large instantaneous pulling force, thus improving the pull-out effect; It can also be easily and quickly locked after use, preventing the square guide sleeve from sliding around randomly when not in use, which would cause collision noise when carrying it. It can also be easily unlocked by hooking with your fingers during use, making it convenient for personnel to operate and apply. 2. By using a different design for the threaded post, threaded groove, and elastic rubber block, the adhesive block can be easily disassembled and replaced by simple rotation. The detachable design allows personnel to easily replace the adhesive block of the appropriate size according to different recesses of the car body, further improving the flexibility of use.

[0012] This utility model features a series of structures that allow for easy outward shock and pull after bonding by simple lateral movement. Utilizing the instantaneous high pressure generated by the impact, it can better apply a larger instantaneous external pulling force for effective pull-out repair work. Compared to directly applying pulling force, which can easily cause hand slippage, this design avoids the possibility of falls due to hand slippage when applying a large instantaneous pulling force, thus improving the pull-out effect. Furthermore, it allows for convenient and quick locking of the square guide sleeve after use, preventing the square guide sleeve from sliding around and causing collision noise when not in use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a pull-out device for automobile body repair according to Embodiment 1 of this utility model; Figure 2 This is a cross-sectional structural schematic diagram of a pull-out device for automobile body repair according to Embodiment 1 of this utility model; Figure 3 This is a partial cross-sectional view of a pull-out device for repairing automobile bodies, as proposed in Embodiment 2 of this utility model.

[0014] In the diagram: 1. Square rod; 101. Vibration block; 102. Impact sleeve; 103. Rubber pad; 104. Slot; 105. Threaded groove; 106. Elastic rubber block; 2. Adhesive block; 201. Threaded post; 3. Square guide sleeve; 301. Anti-wear ball; 302. T-shaped handle; 4. Rectangular sleeve; 401. Rectangular slider; 402. Slot; 403. Spring; 404. U-shaped handle. Detailed Implementation

[0015] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1 like Figures 1 to 2 As shown in this embodiment, a pull-out device for automobile body repair includes: The square rod 1 has a protrusion integrally provided on the left side of its outer side and a slot 104 opened on the left side of its top; Adhesive block 2 is used to apply hot melt adhesive and bond it to the inner recess of the outer side of the car body, and is connected to the left end of square rod 1; the adhesive block 2 is provided so that personnel can apply hot melt adhesive with a hot melt glue gun on its left side and bond it to the inner recess of the outer side of the car body using hot melt adhesive for convenient bonding. Square guide sleeve 3 is sleeved on the outside of square rod 1. Two anti-wear balls 301 that are in contact with the outside of square rod 1 are movably embedded on the inner walls of its four sides. Two L-shaped support rods are fixedly connected to its top. The same T-shaped handle 302 is fixedly connected between the two L-shaped support rods. The shock-traction assembly is fixedly connected to the right end of the square rod 1 and the right side of the square guide sleeve 3; The elastic locking component is embedded and fixed on the top of the square guide sleeve 3 and is movably locked in the slot 104. The elastic locking component is used to conveniently lock and restrict the square guide sleeve 3 when not in use through the slot 104, preventing the square guide sleeve 3 from sliding randomly when not in use. It is also used to allow personnel to easily and quickly unlock the T-shaped handle 302 by hooking it with their fingers. The shock-pulling component is used to generate a rightward impact force when the square guide sleeve 3 is unlocked and slid to the right by the personnel. The rightward impact force effectively shocks and moves the square rod 1 to the right, so that it can be pulled outward and reset the concave part of the car body through the adhesive block 2 using the adhesive point. In this embodiment, a rubber pad 103 is glued and fixed to the right side of the protrusion on the left side of the outer side of the square rod 1. The right side of the rubber pad 103 is in active contact with the left side of the square guide sleeve 3, which serves to flexibly block the square guide sleeve 3 when it moves back to the left, preventing the square guide sleeve 3 from directly impacting the left side structure.

[0017] Furthermore, the adhesive block 2 is welded to the left end of the square rod 1.

[0018] Furthermore, such as Figure 1 and 2As shown, the shock-shock traction assembly includes an impact sleeve 102 and a shock block 101. The shock block 101 is fixedly connected to the right end of the square rod 1, and the impact sleeve 102 is fixedly connected to the right side of the square guide sleeve 3. The impact sleeve 102 is located on the left side of the shock block 101 and cooperates with it. The impact sleeve 102 is sleeved on the outside of the square rod 1 and does not contact the outside of it. In this implementation scheme, the impact sleeve 102 and the shock block 101 work together. When the personnel push the square guide sleeve 3 to the right quickly, the square guide sleeve 3 drives the impact sleeve 102 to impact the shock block 101 to the right. Under the impact force, there is a large rightward driving force. Then, the shock block 101 drives the square rod 1 to shock and move to the right, so that it pulls the concave part of the car body outward through the adhesive block 2. The personnel can also move the square guide sleeve 3 back and forth according to the pulling and resetting situation, so that it drives the impact sleeve 102 to intermittently impact the shock block 101, so as to gradually pull and reset the concave part of the car body. By directly shocking and pulling outward from the outside, the instantaneous high pressure generated by the impact can better perform the force pulling and repair work compared with the phenomenon of easy hand slippage when directly applying the pulling force, thus improving the use effect.

[0019] Furthermore, such as Figure 1 and 2 As shown, the elastic locking assembly includes a rectangular sleeve 4, a rectangular slider 401, a locking post 402, a spring 403, and a U-shaped handle 404. The bottom of the rectangular sleeve 4 is set as an opening and is embedded and fixed to the top of the square guide sleeve 3. The rectangular slider 401 is slidably sleeved in the rectangular sleeve 4. The bottom end of the locking post 402 is movably locked in the locking groove 104 and is set as an arc structure. The rectangular slider 401 is fixedly sleeved on the locking post 402. The rectangular sleeve 4 is slidably sleeved on the locking post 402. The spring 403 is fixedly connected between the top of the rectangular slider 401 and the inner wall of the top of the rectangular sleeve 4. The spring 403 is movably sleeved on the locking post 402. The top of the U-shaped handle 404 is set as an arc structure and is located below the T-shaped handle 302. The U-shaped handle 404 is fixedly connected to the top of the locking post 402. In this embodiment, the top inner wall of the square guide sleeve 3 is provided with an insert hole that is fixedly connected to the outer side of the rectangular sleeve 4; the top inner wall of the rectangular sleeve 4 is provided with a circular through hole that slides and fits with the outer side of the locking post 402, so as to allow the locking post 402 to pass through and guide its vertical sliding; the top of the rectangular slider 401 is provided with a fitting hole that is fixedly connected to the outer side of the locking post 402. In this implementation scheme, the rectangular sleeve 4, rectangular slider 401, locking post 402, spring 403, and U-shaped handle 404 work together. The locking post 402 engages with the slot 104, allowing the guide sleeve 3 to be horizontally secured and restricted when not in use. This prevents the guide sleeve 3 from sliding freely and causing collision noise during transport. When unlocking is needed, the user simply uses one finger to pull the U-shaped handle 404 upwards while holding the T-shaped handle 302. The U-shaped handle 404 then moves the locking post 402 upwards to engage with the slot 104. When separated, the locking post 402 drives the rectangular slider 401 upward to compress the spring 403, releasing the locking connection. Personnel can then directly operate the square guide sleeve 3 to move laterally for impact work via the T-shaped handle 302, achieving the effect of conveniently unlocking by hooking with their fingers during use, making it convenient for personnel to operate and apply. After subsequent use, moving the square guide sleeve 3 to the far left will release the hooking force on the loop handle 404. At this time, the elastic force of the spring 403, which is in a compressed state, drives the locking post 402 downward through the rectangular slider 401 and locks it into the slot 104, restricting the square guide sleeve 3 again.

[0020] This embodiment allows for direct outward shock and pull after bonding by simple lateral movement. Utilizing the instantaneous high pressure generated by the impact, it can apply a larger instantaneous external pulling force for effective pull-out repair. Compared to directly applying pulling force, which can easily cause hand slippage, this embodiment avoids the possibility of slipping and falling due to the instantaneous application of large pulling force, thus improving the pull-out effect. Furthermore, it allows for convenient and quick locking of the square guide sleeve 3 after use, preventing it from sliding around and causing collision noise when not in use. It can also be easily unlocked by hooking with fingers during use, making it convenient for personnel to operate and apply.

[0021] The usage method of this embodiment is as follows: When using the pull-out device for car body repair, the operator applies hot melt adhesive to the left side of the adhesive block 2 using a hot melt glue gun, and then directly presses the adhesive block 2 against the concave area on the outer side of the car body using the hot melt adhesive. After the hot melt adhesive has fully solidified and bonded, the operator holds the T-shaped handle 302 and directly hooks the U-shaped handle 404 upward with one finger. The U-shaped handle 404 causes the locking post 402 to move upward and separate from the locking groove 104. The locking post 402 causes the rectangular slider 401 to move upward and compress the spring 403, releasing the spring. In the snap-fit ​​connection state, personnel can directly operate the square guide sleeve 3 to move laterally to the right via the T-shaped handle 302. The square guide sleeve 3 drives the impact sleeve 102 to impact the shock block 101 to the right. Under the impact force, it has a large rightward driving force, which in turn uses the shock block 101 to drive the square rod 1 to move to the right, so that it pulls the concave part of the car body outward through the adhesive block 2 using the adhesive point. Personnel can also move the square guide sleeve 3 back and forth laterally according to the pulling and reset situation, so that it drives the impact sleeve 102 to intermittently impact the shock block 101, so as to gradually reduce the concavity of the car body. After the repair is completed, the square guide sleeve 3 is moved to the far left, which relaxes the hooking force on the loop handle 404. At this time, the elastic force of the spring 403, which is in a compressed state, drives the locking post 402 to move downward and lock into the locking groove 104 through the rectangular slider 401, thus restricting the square guide sleeve 3 again. This achieves the effect of direct outward shock and pull by simple lateral movement after the adhesive connection. The instantaneous high pressure generated by the impact can better perform the force pulling repair work, which is easier to slip on the hand compared to directly applying the pulling force. This design avoids slippage and falls caused by sudden large pulling forces, improving the pulling effect. It also allows for quick and easy locking of the guide sleeve 3 after use, preventing it from sliding around and causing collision noise when not in use. The easy-to-unlock mechanism using fingers facilitates convenient operation. After use, the device can be separated from the car's exterior by heating the hot melt adhesive with an external heat gun or similar device, and then the melted adhesive can be wiped or scraped off.

[0022] Example 2 like Figure 3 As shown, this embodiment differs from Embodiment 1 in that: the adhesive block 2 is detachably connected to the left end of the square rod 1; wherein the adhesive block 2 is in movable contact with the left end of the square rod 1, the left end of the square rod 1 is provided with a threaded groove 105, an elastic rubber block 106 in a compressed state is bonded and fixed on the inner wall of the right side of the threaded groove 105, and a threaded post 201 is welded to the center of the right side of the adhesive block 2, the threaded post 201 is threaded into the threaded groove 105 and squeezed into contact with the left side of the elastic rubber block 106.

[0023] It should be noted that the threaded post 201 is preferably made of stainless steel. The threaded post 201 has a high wear-resistant and load-bearing specification with a thread gap of 1-2mm on the outer side. The stainless steel material has the advantages of high hardness, high wear resistance and good maintenance-free effect, which ensures long-term application stability.

[0024] This embodiment allows for easy disassembly and replacement of the adhesive block 2 by simple rotation. The detachable design makes it convenient for personnel to replace the adhesive block 2 with the appropriate size according to different concave areas of the car body, further improving the flexibility of use.

[0025] The usage method of this embodiment is as follows: Unlike Embodiment 1, this embodiment also has the following functions: It utilizes a threaded post 201, a threaded groove 105, and an elastic block 106 arranged in another manner. The threaded post 201 and the threaded groove 105 are screwed together, and the elastic block 106 provides compression and tension, achieving a tight, meshing engagement of the threaded post 201, thereby fixing the adhesive block 2. Subsequently, the adhesive block 2 can be rotated in the reverse direction to gradually screw the threaded post 201 out of the threaded groove 105, thus disassembling the adhesive block 2. For installation, the adhesive block 2 is rotated in the forward direction to tighten the threaded post 201 into the threaded groove 105. This allows for convenient disassembly and replacement of the adhesive block 2 through simple rotation. The detachable design allows personnel to easily replace the adhesive block 2 with the appropriate size according to different recesses in the car body, improving usability.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pull-out device for automobile body repair, comprising a square rod (1), characterized in that: include: The square rod (1) has a protrusion integrally provided on the left side of its outer side and a slot (104) opened on the left side of its top. Adhesive block (2) is used to apply hot melt adhesive to the concave part of the outer side of the car body and to connect to the left end of the square rod (1); The square guide sleeve (3) is fitted on the outside of the square rod (1). Two anti-wear balls (301) are movably embedded on the inner walls of its four sides and are in contact with the outside of the square rod (1). Two L-shaped support rods are fixedly connected to its top, and the same T-shaped handle (302) is fixedly connected between the two L-shaped support rods. The shock-traction assembly is fixedly connected to the right end of the square rod (1) and the right side of the square guide sleeve (3); The elastic locking component is embedded and fixed on the top of the square guide sleeve (3) and is movably locked in the slot (104).

2. The pull-out device for automobile body repair according to claim 1, characterized in that: The adhesive block (2) is welded to the left end of the square rod (1).

3. The pull-out device for automobile body repair according to claim 1, characterized in that: The adhesive block (2) is detachably connected to the left end of the square rod (1).

4. The pull-out device for automobile body repair according to claim 3, characterized in that: The adhesive block (2) is in contact with the left end of the square rod (1). The left end of the square rod (1) is provided with a threaded groove (105). An elastic rubber block (106) in a compressed state is bonded and fixed on the inner wall of the right side of the threaded groove (105). A threaded column (201) is welded and connected to the center of the right side of the adhesive block (2). The threaded column (201) is threaded into the threaded groove (105) and squeezed and contacted with the left side of the elastic rubber block (106).

5. A pull-out device for automobile body repair according to claim 1, characterized in that: The shock-pulling assembly includes an impact sleeve (102) and a shock block (101). The shock block (101) is fixedly connected to the right end of the square rod (1), and the impact sleeve (102) is fixedly connected to the right side of the square guide sleeve (3). The impact sleeve (102) is located on the left side of the shock block (101) and cooperates with it. The impact sleeve (102) is sleeved on the outside of the square rod (1) and does not contact the outside of it.

6. A pull-out device for automobile body repair according to claim 1, characterized in that: The elastic locking assembly includes a rectangular sleeve (4), a rectangular slider (401), a locking post (402), a spring (403), and a loop handle (404). The bottom of the rectangular sleeve (4) is set as an opening and is embedded and fixed on the top of the square guide sleeve (3). The rectangular slider (401) is slidably fitted inside the rectangular sleeve (4). The bottom end of the locking post (402) is movably fitted into the locking groove (104) and is set as an arc structure. The rectangular slider (401) is fixedly fitted on the locking post (402). The rectangular sleeve (4) is slidably fitted on the locking post (402). The spring (403) is fixedly connected between the top of the rectangular slider (401) and the inner wall of the top of the rectangular sleeve (4). The spring (403) is movably fitted on the locking post (402). The top of the loop handle (404) is set as an arc structure and is located below the T-shaped handle (302). The loop handle (404) is fixedly connected to the top of the locking post (402).

7. A pull-out device for automobile body repair according to claim 1, characterized in that: A rubber pad (103) is glued and fixed to the right side of the protrusion on the left side of the outer side of the square rod (1), and the right side of the rubber pad (103) is in contact with the left side of the square guide sleeve (3).

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