A device for flattening a door depression

CN224600216UActive Publication Date: 2026-08-07CHANGCHUN DAZHENG AUTOMATIC EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN DAZHENG AUTOMATIC EQUIP
Filing Date
2025-07-28
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

但是,发明人在实现本实用新型的过程中发现现有技术存在如下问题:上述的车门凹陷拉平装置,在对车门进行拉平操作时,是通过对黏贴在车门上的胶棒进行夹持后,再通过手动拉动的方式进行拉平操作,其存在劳动强度高的缺陷,且在对黏贴在车门上的胶棒进行夹持拉伸时,只能够进行水平方向拉伸,而车门整体呈弧形,因而在针对不同位置的车门进行拉伸时,存在难以对拉伸角度进行适配调整的缺陷

Benefits of technology

[0022] 1. Compared with existing technologies, this car door dent leveling device, when in use, pushes the movable base plate to move the entire device to the front of the car door. The lifting motor drives the vertical screw to rotate, thereby driving the lifting frame to adjust the height. The clamping assembly clamps the adhesive sticks attached to the dent of the car door. By controlling the retraction of the hydraulic rod, the leveling column moves into the mounting cylinder, achieving the purpose of leveling the dent of the car door. The leveling process requires less labor intensity. By setting up a tilt adjustment assembly, the hydraulic telescopic rod extends and retracts to drive the rack to move. Based on the meshing of the rack and the gear plate, the shaft can be deflected to adjust the angle of the mounting cylinder, thereby adjusting the leveling angle. This meets the needs of leveling car door dents at different angles and positions, and has strong applicability.

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Abstract

The utility model relates to the technical field of the automobile repair, and disclose a kind of vehicle door concave flattening device, including mobile base plate, the upper surface of mobile base plate is fixedly installed with mounting bracket, the inner wall of mounting bracket is rotatably connected with vertical screw rod, the top coaxial fixed mounting of mounting bracket is equipped with lift motor of driving vertical screw rod rotation, the surface of vertical screw rod is threadedly connected with lifting frame, and the surface of lifting frame is provided with mounting cylinder.The vehicle door concave flattening device is when using, by control hydraulic rod contraction drives flattening column to move to mounting cylinder interior, realize the purpose of the flattening operation to vehicle door concave, labor intensity is small in flattening process, by setting up inclination adjusting component, utilize hydraulic telescopic rod telescopic drive rack to move, based on rack and pinion engagement, it can drive shaft lever deflection adjust the angle of mounting cylinder, to be able to adjust the angle of flattening, satisfy the demand of the concave flattening treatment of the vehicle door of different angle positions, and strong applicability.
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Description

Technical Field

[0001] This utility model relates to the field of automotive repair technology, and more specifically to a device for smoothing out dents in car doors. Background Technology

[0002] Automotive repair is a general term for car maintenance and repair. In automotive repair, it is often necessary to flatten concave car doors to facilitate subsequent repair operations such as painting and detailing. When flattening, a door concavity flattening device is required.

[0003] A search revealed an existing patent (publication number: CN219357464U) that discloses a door recess flattening device. During use, a rubber rod is placed between a pressure plate and a support block, and then a screw is tightened. The screw then moves the pressure plate to fix the rubber rod, achieving a convenient and limited fixation of the rubber rod. This facilitates subsequent door flattening operations and avoids interfering with the door flattening process, ensuring the device's normal operation. Furthermore, by having a telescopic rod move a sliding plate, which in turn moves a square rod upwards, the square rod moves the clamping block on the limiting rod, achieving height adjustment. This allows for flattening of recessed areas at different heights, improving the device's efficiency and simplifying the door flattening process. However, in the process of realizing this utility model, the inventors discovered the following problems with the prior art: the above-mentioned door recess flattening device, when flattening the door, is to clamp the glue sticks attached to the door and then pull them manually. This has the disadvantage of high labor intensity. Moreover, when clamping and stretching the glue sticks attached to the door, it can only stretch horizontally. Since the door is curved, it is difficult to adjust the stretching angle when stretching the door at different positions.

[0004] In view of this, the present invention proposes a door recess flattening device to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a door recess flattening device to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a door recess leveling device, including a movable base plate, an mounting frame fixedly installed on the upper surface of the movable base plate, a vertical screw rotatably connected to the inner wall of the mounting frame, a lifting motor for driving the vertical screw to rotate coaxially fixedly installed on the top of the mounting frame, a lifting frame threadedly connected to the surface of the vertical screw, an mounting cylinder provided on the surface of the lifting frame, a leveling column slidably connected to the left end of the mounting cylinder through a limiting groove, a clamping component provided on the left end of the leveling column, a hydraulic rod embedded in the right end of the mounting cylinder, a connecting ring fixedly installed at one end of the leveling column inside the mounting cylinder, the telescopic end of the hydraulic rod engaging with the connecting ring, the mounting cylinder and the lifting frame being movably connected, and an tilt adjustment component provided on the surface of the lifting frame corresponding to the mounting cylinder;

[0007] The tilt adjustment assembly includes an adjustment box fixedly installed on the surface of the lifting frame. A shaft is fixedly installed on the outer wall of the mounting cylinder. The shaft is rotatably connected to the lifting frame and the adjustment box. A hydraulic telescopic rod is embedded in the side wall of the adjustment box. The telescopic end of the hydraulic telescopic rod extends into the interior of the adjustment box and is fixedly installed with a rack. A gear plate is fixedly installed on the surface of the shaft, and the rack meshes with the gear plate.

[0008] Furthermore, a hydraulic station is fixedly installed on the upper surface of the movable base plate, and a control panel is fixedly installed on the front of the mounting frame. The control panel is electrically connected to an external power source via wires.

[0009] Furthermore, a limiting slide rod is fixedly installed on the inner wall of the mounting frame, and the lifting frame is slidably connected to the surface of the limiting slide rod.

[0010] As a further description of the above technical solution: by setting a limit slide bar, the movement path of the lifting frame can be restricted, ensuring the stability of the lifting frame's movement.

[0011] Furthermore, the clamping assembly includes a clamping sleeve fixedly installed on the left end of the flattening column. The outer wall of the clamping sleeve is threaded with three clamping screws in a circumferential array, and the threaded ends of the three clamping screws are rotatably connected to jaws.

[0012] As a further description of the above technical solution: by setting up a clamping assembly, for the glue sticks adhering to the surface of the car door, the rod of the glue stick is inserted into the clamping sleeve, and by rotating the three clamping screws, the glue sticks can be firmly clamped by the jaws.

[0013] Furthermore, a guide slide rod is fixedly installed on the surface of the gripper, and the guide slide rod is slidably connected to the inner wall of the gripping sleeve.

[0014] As a further description of the above technical solution: by setting a guide slide bar, the movement path of the gripper can be restricted, ensuring the stability of the gripper movement.

[0015] Furthermore, a pressure sensor is fixedly installed on the inner wall of the connecting ring. The sensing end of the pressure sensor corresponds to the telescopic end of the hydraulic rod, and the pressure sensor is connected to the control panel via signal communication.

[0016] As a further description of the above technical solution: by setting a pressure sensor, when the hydraulic rod is controlled to retract and pull the flattening column, the pressure sensor and the connecting ring are pressed together, which can monitor the pulling force and avoid the situation where the door is damaged due to excessive pulling force.

[0017] Furthermore, an adjusting ring is threaded onto the outer wall of the left end of the mounting cylinder. The left end of the adjusting ring is rotatably connected to a rotating ring through an annular groove. Three support rods are evenly fixedly mounted on the left end of the rotating ring in a circumferential array, and rubber seats are attached to the ends of the three support rods.

[0018] As a further description of the above technical solution: During the leveling operation, by rotating the adjusting ring, the rubber seat can be pressed tightly against the car door, and the support rod can be used to support the entire device during the leveling process to ensure the stability of the entire device.

[0019] Furthermore, a locking ring is threaded onto the outer wall of the left end of the mounting cylinder, and the locking ring abuts against the right end face of the adjusting ring.

[0020] As a further description of the above technical solution: by setting a locking ring, the adjusting ring can be locked and positioned to prevent the adjusting ring from rotating on its own and shifting.

[0021] The technical effects and advantages of this utility model are as follows:

[0022] 1. Compared with existing technologies, this car door dent leveling device, when in use, pushes the movable base plate to move the entire device to the front of the car door. The lifting motor drives the vertical screw to rotate, thereby driving the lifting frame to adjust the height. The clamping assembly clamps the adhesive sticks attached to the dent of the car door. By controlling the retraction of the hydraulic rod, the leveling column moves into the mounting cylinder, achieving the purpose of leveling the dent of the car door. The leveling process requires less labor intensity. By setting up a tilt adjustment assembly, the hydraulic telescopic rod extends and retracts to drive the rack to move. Based on the meshing of the rack and the gear plate, the shaft can be deflected to adjust the angle of the mounting cylinder, thereby adjusting the leveling angle. This meets the needs of leveling car door dents at different angles and positions, and has strong applicability.

[0023] 2. Compared with existing technologies, this door recess flattening device, by setting a limiting slide bar, can restrict the movement path of the lifting frame, ensuring the stability of the lifting frame's movement; by setting a clamping assembly, for the adhesive rods adhering to the door surface, the rod part is inserted into the clamping sleeve, and by rotating the three clamping screws, the adhesive rods can be firmly clamped by the jaws; by setting a guide slide bar, the movement path of the jaws can be restricted, ensuring the stability of the jaws' movement; by setting a pressure sensor, when controlling the hydraulic rod to retract and pull the flattening column, the pressure sensor and the connecting ring are pressed together, which can monitor the pulling force and avoid excessive pulling force that could damage the door.

[0024] 3. Compared with the prior art, this door recess flattening device can make the rubber seat press tightly against the door by rotating the adjusting ring during the flattening operation. It can also use the support rod to support the whole device during the flattening process, ensuring the stability of the whole device. By setting a locking ring, the adjusting ring can be locked and positioned to prevent the adjusting ring from rotating on its own and shifting. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from one perspective;

[0026] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a different perspective;

[0027] Figure 3 This is a schematic diagram of the orthographic section of the mounting cylinder of this utility model;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the clamping sleeve of this utility model;

[0029] Figure 5 This is a schematic diagram of the orthographic section of the adjustment box of this utility model;

[0030] Figure 6 for Figure 1 Enlarged structural diagram at point A in the middle.

[0031] The attached diagram is labeled as follows: 1. Movable base plate; 2. Mounting frame; 3. Vertical lead screw; 4. Lifting motor; 5. Lifting frame; 6. Mounting cylinder; 7. Leveling column; 8. Hydraulic rod; 9. Connecting ring; 10. Adjusting box; 11. Shaft; 12. Hydraulic telescopic rod; 13. Rack; 14. Gear plate; 15. Hydraulic station; 16. Control panel; 17. Limiting slide bar; 18. Clamping sleeve; 19. Clamping screw; 20. Gripper; 21. Guide slide bar; 22. Pressure sensor; 23. Adjusting ring; 24. Rotary ring; 25. Support rod; 26. Rubber seat; 27. Locking ring. Detailed Implementation

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The door recess flattening device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] Reference Figures 1 to 6 This utility model provides a door recess flattening device, including a movable base plate 1, a hydraulic station 15 fixedly installed on the upper surface of the movable base plate 1, and a control panel 16 fixedly installed on the front of the mounting bracket 2. The control panel 16 is electrically connected to an external power source through wires.

[0034] A mounting frame 2 is fixedly installed on the upper surface of the movable base plate 1. A vertical screw 3 is rotatably connected to the inner wall of the mounting frame 2. A lifting motor 4 that drives the vertical screw 3 to rotate is coaxially fixedly installed on the top of the mounting frame 2. A lifting frame 5 is threadedly connected to the surface of the vertical screw 3. A mounting cylinder 6 is provided on the surface of the lifting frame 5. A leveling column 7 is slidably connected to the left end of the mounting cylinder 6 through a limiting slide groove. A clamping assembly is provided on the left end of the leveling column 7.

[0035] The clamping assembly includes a clamping sleeve 18 fixedly installed on the left end of the flattening column 7. The outer wall of the clamping sleeve 18 is connected to three clamping screws 19 in a circumferential array. The threaded ends of the three clamping screws 19 are rotatably connected to jaws 20.

[0036] By setting up a clamping assembly, for the glue sticks adhering to the surface of the car door, the rod of the glue stick is inserted into the clamping sleeve 18, and by rotating the three clamping screws 19, the glue stick can be firmly clamped by the jaws 20.

[0037] A guide slide rod 21 is fixedly installed on the surface of the gripper 20, and the guide slide rod 21 is slidably connected to the inner wall of the clamping sleeve 18.

[0038] By setting the guide slide bar 21, the movement path of the gripper 20 can be restricted, ensuring the stability of the movement of the gripper 20.

[0039] A hydraulic rod 8 is embedded in the right end of the mounting cylinder 6. A connecting ring 9 is fixedly installed at one end of the flattening column 7 located inside the mounting cylinder 6. The telescopic end of the hydraulic rod 8 is engaged with the connecting ring 9.

[0040] When using this car door dent leveling device, push the movable base plate 1 to move the entire device to the front of the car door. The lifting motor 4 drives the vertical screw 3 to rotate, thereby driving the lifting frame 5 to adjust the height. The clamping assembly clamps the adhesive sticks attached to the dent of the car door. By controlling the hydraulic rod 8 to retract, the leveling column 7 moves into the mounting cylinder 6, thus achieving the purpose of leveling the dent of the car door. The leveling process is labor-intensive and simple to operate.

[0041] The inner wall of the mounting bracket 2 is fixedly installed with a limiting slide rod 17, and the lifting frame 5 is slidably connected to the surface of the limiting slide rod 17.

[0042] By setting the limit slide bar 17, the movement path of the lifting frame 5 can be restricted, ensuring the stability of the movement of the lifting frame 5.

[0043] A pressure sensor 22 is fixedly installed on the inner wall of the connecting ring 9. The sensing end of the pressure sensor 22 corresponds to the telescopic end of the hydraulic rod 8. The pressure sensor 22 is connected to the control panel 16 via signal.

[0044] It is worth noting that by setting up a pressure sensor 22, when the hydraulic rod 8 is contracted to pull the flattening column 7, the pressure sensor 22 and the connecting ring 9 are pressed together, which can monitor the pulling force and prevent the door from being damaged due to excessive pulling force, thus ensuring the safety of operation.

[0045] The mounting cylinder 6 and the lifting frame 5 are movably connected, and the surface of the lifting frame 5 is provided with a tilt adjustment component corresponding to the mounting cylinder 6.

[0046] The tilt adjustment assembly includes an adjustment box 10 fixedly installed on the surface of the lifting frame 5. A shaft 11 is fixedly installed on the outer wall of the mounting cylinder 6. The shaft 11 is rotatably connected to the lifting frame 5 and the adjustment box 10. A hydraulic telescopic rod 12 is embedded in the side wall of the adjustment box 10. The telescopic end of the hydraulic telescopic rod 12 extends into the interior of the adjustment box 10 and is fixedly installed with a rack 13. A gear plate 14 is fixedly installed on the surface of the shaft 11. The rack 13 meshes with the gear plate 14.

[0047] It is worth noting that by setting up a tilt adjustment component, the hydraulic telescopic rod 12 is used to drive the rack 13 to move. Based on the meshing of the rack 13 and the gear plate 14, the shaft 11 can be driven to deflect and adjust the angle of the mounting cylinder 6, thereby adjusting the flattening angle and meeting the needs of flattening the door at different angles. It has strong applicability.

[0048] An adjusting ring 23 is threaded onto the outer wall of the left end of the mounting cylinder 6. The left end of the adjusting ring 23 is rotatably connected to a rotating ring 24 through an annular groove. Three support rods 25 are evenly fixedly installed on the left end of the rotating ring 24 in a circumferential array. Rubber seats 26 are attached to the ends of the three support rods 25.

[0049] It is worth noting that during the leveling operation, by rotating the adjusting ring 23, the rubber seat 26 can be pressed tightly against the door. During the leveling process, the support rod 25 can be used to support the entire device, ensuring the stability and safety of the entire device during use.

[0050] A locking ring 27 is threaded onto the outer wall of the left end of the mounting cylinder 6, and the locking ring 27 abuts against the right end face of the adjusting ring 23.

[0051] Furthermore, by setting a locking ring 27, the adjusting ring 23 can be locked and positioned to prevent the adjusting ring 23 from rotating on its own and shifting.

[0052] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A door recess straightening device, comprising a movable base plate (1), characterized in that: A mounting frame (2) is fixedly installed on the upper surface of the movable base plate (1). A vertical screw (3) is rotatably connected to the inner wall of the mounting frame (2). A lifting motor (4) that drives the vertical screw (3) to rotate is coaxially fixedly installed on the top of the mounting frame (2). A lifting frame (5) is threadedly connected to the surface of the vertical screw (3). A mounting cylinder (6) is provided on the surface of the lifting frame (5). A leveling column (7) is slidably connected to the left end of the mounting cylinder (6) through a limiting groove. A clamping component is provided on the left end of the leveling column (7). A hydraulic rod (8) is embedded in the right end of the mounting cylinder (6). A connecting ring (9) is fixedly installed at one end of the leveling column (7) inside the mounting cylinder (6). The telescopic end of the hydraulic rod (8) is engaged with the connecting ring (9). The mounting cylinder (6) and the lifting frame (5) are movably connected. A tilt adjustment component is provided on the surface of the lifting frame (5) corresponding to the mounting cylinder (6). The tilt adjustment assembly includes an adjustment box (10) fixedly installed on the surface of the lifting frame (5). A shaft (11) is fixedly installed on the outer wall of the mounting cylinder (6). The shaft (11) is rotatably connected to the lifting frame (5) and the adjustment box (10). A hydraulic telescopic rod (12) is embedded in the side wall of the adjustment box (10). The telescopic end of the hydraulic telescopic rod (12) extends into the interior of the adjustment box (10) and is fixedly installed with a rack (13). A gear plate (14) is fixedly installed on the surface of the shaft (11). The rack (13) meshes with the gear plate (14).

2. The door recess smoothing device according to claim 1, characterized in that: A hydraulic station (15) is fixedly installed on the upper surface of the movable base plate (1), and a control panel (16) is fixedly installed on the front of the mounting frame (2). The control panel (16) is electrically connected to an external power source through wires.

3. The door recess smoothing device according to claim 1, characterized in that: The inner wall of the mounting bracket (2) is fixedly installed with a limiting slide rod (17), and the lifting frame (5) is slidably connected to the surface of the limiting slide rod (17).

4. The door recess smoothing device according to claim 1, characterized in that: The clamping assembly includes a clamping sleeve (18) fixedly installed on the left end of the flattening column (7). The outer wall of the clamping sleeve (18) is connected to three clamping screws (19) in a circumferential array. The threaded ends of the three clamping screws (19) are rotatably connected to jaws (20).

5. A door recess smoothing device according to claim 4, characterized in that: A guide slide rod (21) is fixedly installed on the surface of the gripper (20), and the guide slide rod (21) is slidably connected to the inner wall of the clamping sleeve (18).

6. A door recess smoothing device according to claim 1, characterized in that: A pressure sensor (22) is fixedly installed on the inner wall of the connecting ring (9). The sensing end of the pressure sensor (22) corresponds to the telescopic end of the hydraulic rod (8). The pressure sensor (22) is connected to the control panel (16) via signal.

7. A door recess smoothing device according to claim 1, characterized in that: An adjusting ring (23) is threaded onto the outer wall of the left end of the mounting cylinder (6). The left end of the adjusting ring (23) is rotatably connected to a rotating ring (24) through an annular groove. Three support rods (25) are evenly fixedly installed on the left end of the rotating ring (24) in a circular array. Rubber seats (26) are attached to the ends of the three support rods (25).

8. A door recess smoothing device according to claim 7, characterized in that: A locking ring (27) is threaded onto the outer wall of the left end of the mounting cylinder (6), and the locking ring (27) abuts against the right end face of the adjusting ring (23).

Citation Information

Patent Citations

  • Vehicle door recess leveling device

    CN219357464U