Door cover edge folding device
By designing a door cover folding device and utilizing a worm gear and annular airbag suction cup mechanism, the disassembly of the car door cover is made time-saving and labor-saving, solving the problems of time-consuming, labor-intensive, and wear-prone disassembly in existing technologies and improving disassembly efficiency.
Patent Information
- Application Number
- CN202423207778.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing technology for disassembling and repairing car door covers is time-consuming, labor-intensive, and prone to wear and tear, resulting in low efficiency.
A door cover folding device was designed, including a rotating rod, a worm gear mechanism and a support mechanism. The worm gear is driven to rotate by a crank handle, and the door cover is fixed by a ring airbag and a suction cup, so as to realize the time-saving and labor-saving disassembly of the door cover.
It improves the efficiency of door cover removal, avoids door cover wear, and provides a convenient removal method.
Smart Images

Figure CN223543833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding device technology, and in particular to a door cover folding device. Background Technology
[0002] In automobile manufacturing, doors and hoods typically refer to important components of the vehicle body assembly, including the left and right front doors, left and right rear doors, engine hood, and trunk lid, collectively known as "four doors and two hoods." These door and hood components not only protect the internal structure of the vehicle body and the engine, but also affect the overall aesthetics and safety of the car.
[0003] In the existing technology, during the disassembly and repair of car door covers, it is necessary to disassemble the edge components of the car door cover. Currently, repair personnel need to place the car door cover on a workbench to disassemble the edge components. This requires repair personnel to disassemble around the car door cover or rotate the car door cover to disassemble it. This method is not only time-consuming and labor-intensive, resulting in low efficiency in disassembling the edges of the car door cover, but may also cause wear and tear on the car door cover. Utility Model Content
[0004] The purpose of this utility model is to solve the problem in the existing technology that, during the disassembly and repair of car door covers, it is necessary to disassemble the edge parts of the car door cover. Currently, repair personnel need to place the car door cover on a workbench to disassemble the edge parts of the car door cover. This requires repair personnel to disassemble around the car door cover or rotate the car door cover to disassemble it. This method is not only time-consuming and labor-intensive, resulting in low efficiency in disassembling the car door cover, but may also cause wear and tear on the car door cover.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a door cover folding device, comprising: a workbench, and further comprising:
[0006] Rotary rod one is rotatably connected to the center of the top of the workbench. One end of the rotary rod one is fixedly connected to a worm gear. Two fixed blocks are symmetrically fixedly connected to the bottom of the workbench. A worm gear is rotatably connected to the opposite side of the two fixed blocks. A crank handle is fixedly connected to both ends of the worm gear. A support mechanism is provided above the workbench. The support mechanism includes a rotating disk. The rotating disk is fixedly connected to rotary rod one.
[0007] Preferably, the support mechanism further includes multiple U-shaped blocks, one side of which is fixedly connected to the outer surface of the rotating disk in a circumferential array. A rotating rod is rotatably connected to the opposite side of each U-shaped block, and a movable strip is fixedly connected to the outer surface of the rotating rod. The movable strip can be rotated by the cooperation of the rotating rod.
[0008] Preferably, one side of the U-shaped block has multiple limiting holes arranged in a circumferential array. One end of the rotating rod is fixedly connected to a limiting disk, and one side of the limiting disk is slidably connected to a limiting rod. One end of the limiting rod is slidably connected inside one of the limiting holes. By pulling the limiting rod outward by hand, it is disengaged from the inside of the limiting hole, thus releasing the limiting disk from its position.
[0009] Preferably, the outer surface of the limiting rod is provided with a spring, which is fixedly connected to the limiting plate and the limiting rod respectively. Under the restoring force of the spring, the limiting rod can be inserted into the interior of another limiting hole to limit the limiting plate and keep the movable strip in a relatively fixed state.
[0010] Preferably, a round rod is fixedly connected to the opposite side of the movable strip near the top, a movable block is fixedly connected to the outer surface of the round rod, and a suction cup is fixedly connected to the top of the movable block. By rotating the movable block at an appropriate angle, the suction cup contacts the surface of the car door cover, and is pressed down to make the suction cup adhere to the car door cover.
[0011] Preferably, an annular airbag is fixedly connected to the top of the rotating disk, which can prevent wear and tear on the car door cover under the action of the annular airbag.
[0012] Preferably, the bottom of the rotating disk is movably connected with multiple balls in a circumferential array. By setting the balls, when the rotating disk rotates, the balls come into contact with the top of the worktable, causing the balls to roll and providing a certain support.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. This utility model allows for easy rotation of the car door cover by holding and rotating the crank handle. This rotation drives the worm gear, which in turn, under the meshing action of the worm gear and worm wheel, rotates the rotating rod, rotating disk, and annular airbag. This method not only saves time and effort, thus improving the efficiency of car door cover disassembly, but also prevents wear on the car door cover with the help of the annular airbag. Furthermore, the self-locking function of the worm gear and worm wheel prevents the door cover from rotating during the disassembly process.
[0015] 2. In this utility model, by pulling the limiting rod outward by hand, it disengages from the limiting hole, releasing the limiting plate. Simultaneously, the spring is stretched. At this time, the movable strip can be rotated upward at an appropriate angle, simultaneously driving the rotating rod and the limiting plate to rotate at an appropriate angle. Then, according to the curvature of the car door cover surface, the movable block is rotated at an appropriate angle, so that the suction cup contacts the surface of the car door cover and is pressed firmly to adhere to the car door cover. Then, the limiting rod is released, allowing it to be inserted into another limiting hole under the restoring force of the spring, thus limiting the limiting plate and keeping the movable strip in a relatively fixed state. Similarly, other suction cups are adhered to the car door cover, thus fixing the car door cover and facilitating subsequent edge removal operations. Attached Figure Description
[0016] Figure 1 A side view of a door cover folding device provided by this utility model;
[0017] Figure 2 This utility model provides a door cover folding device. Figure 1 Enlarged structural diagram at point A in the middle;
[0018] Figure 3 A front view structural diagram of a door cover folding device provided by this utility model;
[0019] Figure 4 This is a cross-sectional structural diagram of a door cover folding device provided by this utility model.
[0020] Legend:
[0021] 1. Workbench; 101. Rotating rod one; 102. Worm gear; 103. Worm; 104. Fixed block; 105. Handle; 2. Rotary disc; 201. Annular airbag; 202. U-shaped block; 203. Movable bar; 204. Suction cup; 205. Rotating rod two; 206. Limiting disc; 207. Limiting rod; 208. Spring; 209. Limiting hole; 210. Ball bearing; 211. Round rod; 212. Movable block. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] Examples, such as Figure 1-4 As shown, this utility model provides a door cover folding device, including: a workbench 1, and a rotating rod 101, which is rotatably connected to the center of the top of the workbench 1. One end of the rotating rod 101 is fixedly connected to a worm gear 102. Two fixing blocks 104 are symmetrically fixedly connected to the bottom of the workbench 1. A worm gear 103 is rotatably connected to the opposite side of the two fixing blocks 104. Both ends of the worm gear 103 are fixedly connected to a crank handle 105. A support mechanism is provided above the workbench 1. The support mechanism includes a rotating disk 2, which is fixedly connected to the rotating rod 101.
[0025] Furthermore, such as Figure 1-4 As shown, the support mechanism also includes multiple U-shaped blocks 202. One side of the multiple U-shaped blocks 202 is fixedly connected to the outer surface of the rotating disk 2 in a circumferential array. The opposite side of the U-shaped blocks 202 is rotatably connected to a rotating rod 205. The outer surface of the rotating rod 205 is fixedly connected to a movable strip 203.
[0026] Furthermore, such as Figure 1-4 As shown, one side of the U-shaped block 202 has multiple limiting holes 209 arranged in a circular array. One end of the rotating rod 205 is fixedly connected to the limiting disk 206. One side of the limiting disk 206 is slidably connected to the limiting rod 207. One end of the limiting rod 207 is slidably connected inside one of the limiting holes 209.
[0027] Furthermore, such as Figure 1-4 As shown, a spring 208 is provided on the outer surface of the limiting rod 207, and the spring 208 is fixedly connected to the limiting plate 206 and the limiting rod 207 respectively.
[0028] Furthermore, such as Figure 1-4 As shown, a round rod 211 is fixedly connected to the opposite side of the movable strip 203 near the top, a movable block 212 is fixedly connected to the outer surface of the round rod 211, and a suction cup 204 is fixedly connected to the top of the movable block 212.
[0029] Furthermore, such as Figure 1-4 As shown, an annular airbag 201 is fixedly connected to the top of the rotating disk 2.
[0030] Furthermore, such as Figure 1-4 As shown, the bottom of the rotating disk 2 is movably connected with multiple ball bearings 210 in a circular array.
[0031] Working principle: In use, the car door cover is placed upside down on top of the annular airbag 201. The annular airbag 201 prevents wear on the car door cover. The limiting rod 207 is then pulled outwards by hand, disengaging it from the limiting hole 209 and releasing the limiting plate 206. Simultaneously, the spring 208 is stretched. The movable bar 203 can then be rotated upwards at an appropriate angle, simultaneously rotating the rotating rod 205 and the limiting plate 206. Based on the curvature of the car door cover surface, the movable block 212 is rotated at an appropriate angle, causing the suction cup 204 to contact the surface of the car door cover. Pressing firmly, the suction cup 204 adheres to the car door cover. The limiting rod 207 is then released, allowing it to be inserted into another limiting hole 209 under the restoring force of the spring 208, thus limiting the limiting plate 206 and allowing the movable bar 206 to move. Strip 203 remains relatively fixed. Similarly, other suction cups 204 are attached to the car door cover, thus fixing the car door cover and facilitating subsequent disassembly. When the car door cover needs to be rotated during disassembly, the crank handle 105 is held and rotated to rotate the worm gear 103. Then, under the meshing action of the worm gear 103 and the worm wheel 102, the rotating rod 101, the rotating disk 2, and the annular airbag 201 can be rotated, making it easy to rotate the car door cover. This method is not only more time-saving and labor-saving, thus improving the efficiency of car door cover disassembly, but also avoids wear on the car door cover with the cooperation of the annular airbag 201. At the same time, the self-locking function of the worm gear 103 and the worm wheel 102 can prevent the door cover from rotating during the disassembly process.
[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A door cover folding device, comprising: The workbench (1) is characterized in that it further includes: Rotary rod 1 (101) is rotatably connected to the center of the top of the workbench (1). One end of the rotary rod 1 (101) is fixedly connected to a worm gear (102). Two fixed blocks (104) are symmetrically fixedly connected to the bottom of the workbench (1). A worm gear (103) is rotatably connected to the opposite side of the two fixed blocks (104). Both ends of the worm gear (103) are fixedly connected to a crank handle (105). A support mechanism is provided above the workbench (1). The support mechanism includes a rotating disk (2). The rotating disk (2) is fixedly connected to the rotary rod 1 (101).
2. The door cover folding device according to claim 1, characterized in that: The support mechanism also includes multiple U-shaped blocks (202), one side of which is fixedly connected to the outer surface of the rotating disk (2) in a circumferential array. The opposite side of each U-shaped block (202) is rotatably connected to a rotating rod (205), and the outer surface of the rotating rod (205) is fixedly connected to a movable strip (203).
3. A door cover folding device according to claim 2, characterized in that: The U-shaped block (202) has multiple limiting holes (209) arranged in a circular array on one side. One end of the rotating rod (205) is fixedly connected to a limiting disk (206). One side of the limiting disk (206) is slidably connected to a limiting rod (207). One end of the limiting rod (207) is slidably connected inside one of the limiting holes (209).
4. A door cover folding device according to claim 3, characterized in that: A spring (208) is provided on the outer surface of the limiting rod (207), and the spring (208) is fixedly connected to the limiting plate (206) and the limiting rod (207) respectively.
5. A door cover folding device according to claim 2, characterized in that: A round rod (211) is fixedly connected to the opposite side of the movable strip (203) near the top. A movable block (212) is fixedly connected to the outer surface of the round rod (211). A suction cup (204) is fixedly connected to the top of the movable block (212).
6. A door cover folding device according to claim 2, characterized in that: The top of the rotating disk (2) is fixedly connected to an annular airbag (201).
7. A door cover folding device according to claim 6, characterized in that: The bottom of the rotating disk (2) is movably connected with multiple balls (210) in a circumferential array.