A tension-adjustable invisible car cover fitting auxiliary device

Abstract

The utility model discloses a kind of invisible car cover fitting auxiliary devices with adjustable tension, belong to car cover fitting field, including limiting component, the top of limiting component is provided with tension adjusting assembly;Limiting component includes fixed seat;Tension adjusting assembly includes support leg fixedly installed in the top of fixed seat, the top of support leg is fixedly connected with arc limiting block, its technical scheme main point is, through electric push rod drive conical cylinder, the displacement of multiple movable rods can be controlled synchronously and accurately, and then the pitch of rolling rod is flexibly adjusted, realize the dynamic regulation of car cover tension, effectively avoid the problem that car cover appears wrinkle or overstretching, substantially improve car cover fitting quality, and cooperate rolling rod with car cover surface as rotary contact, cooperate the rolling auxiliary of rolling roller, sliding friction in the process of fitting is converted into rolling friction, significantly reduce the wear of car cover, protect car cover surface from being scratched, ensure the aesthetic and protective performance after car cover fitting.

Description

Technical Field

[0001] This utility model relates to the field of car wrap application, and in particular to an auxiliary device for applying invisible car wrap with adjustable tension. Background Technology

[0002] Paint protection film, also known as "invisible car wrap," is a high-performance, environmentally friendly new type of film. The main materials used are: PVC: a second-generation material, relatively thin and soft, but also relatively hard, prone to yellowing, orange peel texture, and cracking; TPH: essentially still PVC, but with added plasticizers. TPH also suffers from the drawbacks of PVC, though these issues appeared later; TPU: currently the mainstream material for car wraps on the market, capable of heat-healing scratches, and offering excellent impact and puncture resistance, but at a higher price. Because paint protection film is a thin film, an auxiliary device is usually used during the application process.

[0003] Chinese Patent Application Publication No. CN202322122974.4 discloses an auxiliary device for applying invisible car wraps. This solution uses the movement of a pull rod to move a positioning block outwards, which in turn moves a positioning rod outwards. The movement of the positioning rod disengages from the inner cavity of the slot, thus releasing the fixing of the block. This allows operators to change different sized scrapers according to different application positions and usage needs. However, when applying the car wrap, it is necessary to ensure that the wrap tightly covers the curved surface of the car body while avoiding excessive stretching that could damage the material. Since car models vary, insufficient tension in the wrap can lead to an uneven surface and affect the appearance. Excessive tension, exceeding its tolerance, may cause the wrap to tear. The auxiliary device for applying the car wrap mentioned in the aforementioned patent does not facilitate the adjustment of the wrap tension according to the car model.

[0004] To address this, we propose a tension-adjustable paint protection film application aid. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide an adjustable tension paint protection film application aid device. By driving a conical cylinder with an electric push rod, the displacement of multiple movable rods can be controlled synchronously and precisely, thereby flexibly adjusting the spacing of the rolling rods to achieve dynamic adjustment of the paint protection film tension. This effectively avoids wrinkles or overstretching of the paint protection film, significantly improving the application quality. Furthermore, the rolling rods make rotational contact with the paint protection film surface, and with the assistance of the rolling rollers, the sliding friction during the application process is converted into rolling friction, significantly reducing wear on the paint protection film, protecting the surface from scratches, and ensuring the aesthetics and protective performance of the applied paint protection film.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] An adjustable tension paint protection film application aid includes a limiting component, with a tension adjusting component at its top. The limiting component includes a fixed base. The tension adjusting component includes a support leg fixedly mounted on the top of the fixed base. An arc-shaped limiting block is fixedly connected to the top of the support leg. An arc-shaped guide block is fixedly connected to the top of the arc-shaped limiting block. Multiple equidistant movable rods penetrating the arc-shaped guide block are slidably connected inside the arc-shaped limiting block. A connecting block is fixedly connected to the top of each movable rod. A rolling rod is rotatably connected to the outer wall of the connecting block.

[0008] Furthermore, the top of the fixed base and both sides of the support leg are rotatably connected to a rotating shaft, and a roller is fixedly connected to the outer wall of the rotating shaft.

[0009] Furthermore, the bottom end of the fixed base is fixedly connected to two symmetrical support legs.

[0010] Furthermore, two symmetrical support arms are fixedly connected to the bottom end of the movable rod, and a semi-column block is fixedly connected to the end of the support arm away from the movable rod.

[0011] Furthermore, a spring is fixedly connected to the top of the semi-cylindrical block, and the top of the spring is fixedly connected to the bottom wall of the arc-shaped guide block.

[0012] Furthermore, an electric push rod is fixedly connected to the inner wall of the fixed base, and a conical cylinder is fixedly connected to the transmission end of the electric push rod. The end of the conical cylinder away from the electric push rod passes through an arc-shaped limiting block and is adapted to the movable rod.

[0013] In summary, this utility model has the following beneficial effects:

[0014] 1. By driving the conical cylinder with an electric push rod, the displacement of multiple moving rods can be controlled synchronously and precisely, thereby flexibly adjusting the spacing of the rolling rods and realizing dynamic adjustment of the car cover tension. This effectively avoids problems such as wrinkles or overstretching of the car cover and greatly improves the fit quality of the car cover.

[0015] 2. By using the rolling rod to make rotational contact with the surface of the car cover, and with the rolling assistance of the roller, the sliding friction during the application process is converted into rolling friction, which significantly reduces wear on the car cover, protects the surface of the car cover from scratches, and ensures the aesthetics and protective performance of the car cover after application. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0017] Figure 2This is a schematic diagram of the overall cross-section of the structure in this embodiment;

[0018] Figure 3 This is a schematic diagram of the disassembled tension adjustment component in this embodiment;

[0019] Figure 4 This is a cross-sectional structural diagram of the tension adjustment component in this embodiment;

[0020] Figure 5 This is a schematic diagram of the electric actuator in this embodiment;

[0021] Figure 6 This is a schematic diagram of the membrane travel in this embodiment.

[0022] In the diagram, 1 is the limiting component; 2 is the tension adjusting component; 101 is the fixed base; 102 is the support leg; 103 is the rotating shaft; 104 is the roller; 201 is the support leg; 202 is the arc-shaped limiting block; 203 is the arc-shaped guide block; 204 is the movable rod; 205 is the support arm; 206 is the semi-cylinder block; 207 is the spring; 208 is the connecting block; 209 is the rolling rod; 210 is the electric push rod; and 211 is the conical cylinder. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0025] Reference Figures 1-6 As shown, a tension-adjustable invisible car wrap application auxiliary device is provided in a preferred embodiment of the present invention. It includes a limiting component 1, and a tension adjusting component 2 is provided at the top of the limiting component 1. The limiting component 1 includes a fixed base 101. The tension adjusting component 2 includes a support leg 201 fixedly installed at the top of the fixed base 101. An arc-shaped limiting block 202 is fixedly connected to the top of the support leg 201. An arc-shaped guide block 203 is fixedly connected to the top of the arc-shaped limiting block 202. Multiple equidistant movable rods 204 that penetrate the arc-shaped guide block 203 are slidably connected inside the arc-shaped limiting block 202. A connecting block 208 is fixedly connected to the top of the movable rod 204. A rolling rod 209 is rotatably connected to the outer wall of the connecting block 208.

[0026] In the tension adjustment component 2 set at the top of the limiting component 1, the support leg 201 provides stable support for the entire component. The arc-shaped limiting block 202 and the arc-shaped guide block 203 conform to the curved surface of the car cover, restricting the movement direction of the car cover and providing a sliding track for the movable rod 204, so that the car cover is evenly stressed. The movable rod 204 can slide flexibly, which facilitates the subsequent adjustment of the tension of the car cover. The connecting block 208 at its top is rotatably connected to the rolling rod 209, which greatly reduces the frictional resistance when the car cover is applied and avoids the car cover being pulled and damaged during the application process.

[0027] The top of the fixed base 101 and both the left and right sides of the support leg 201 are rotatably connected to the rotating shaft 103, and the outer wall of the rotating shaft 103 is fixedly connected to the roller 104.

[0028] The rollers 104 are rotatably connected to the left and right rotating shafts 103 on the top of the fixed seat 101. The rollers 104 can roll along the surface of the car cover, which not only helps the limiting component 1 to move smoothly on the car cover, but also reduces the wear on the car cover by replacing sliding friction with rolling friction, making the car cover move more smoothly during the bonding process.

[0029] The bottom end of the fixed base 101 is fixedly connected to two symmetrical support legs 102;

[0030] The support legs 102, which are symmetrically arranged at the bottom of the fixed base 101, serve to support the entire device.

[0031] Two symmetrical support arms 205 are fixedly connected to the bottom end of the movable rod 204, and a semi-column block 206 is fixedly connected to the end of the support arm 205 away from the movable rod 204.

[0032] The half-column block 206 is connected by the support arm 205 at the bottom of the movable rod 204, and the support arm 205 and the half-column block 206 expand the force-bearing area.

[0033] A spring 207 is fixedly connected to the top of the semi-cylindrical block 206, and the top of the spring 207 is fixedly connected to the bottom wall of the arc-shaped guide block 203.

[0034] The spring 207 connected to the top of the semi-pillar 206 provides elastic support to the movable rod 204, so that it maintains its initial position and the basic tension of the car cover when there is no external force.

[0035] An electric push rod 210 is fixedly connected to the inner wall of the fixed base 101. A conical cylinder 211 is fixedly connected to the transmission end of the electric push rod 210. The end of the conical cylinder 211 away from the electric push rod 210 passes through the arc-shaped limiting block 202 and is adapted to the movable rod 204.

[0036] The electric push rod 210, which passes through the inner wall of the fixed base 101, passes through the arc-shaped limiting block 202 via the conical cylinder 211 at the transmission end. The conical structure of the conical cylinder 211 pushes the movable rod 204. The movable rod 204 drives the semi-cylinder block 206 to move axially synchronously. When the movable rod 204 moves outward, it can drive the connecting block 208 and the rolling rod 209 to move outward, increasing the tension of the car cover. If the conical cylinder 211 leaves the movable rod 204, the movable rod 204 is reset by the elastic force of the spring 207. At this time, the tension of the car cover decreases, realizing precise and synchronous adjustment of the tension of the car cover.

[0037] Specific implementation process: First, the device is placed on the operating platform to be covered with the car cover via the support leg 102 at the bottom of the fixed base 101. The car cover film roll is initially limited by the roller 104. The roller 104 can rotate freely with the car cover to reduce friction. Second, the electric push rod 210 is activated. The extension length of the conical cylinder 211 is adjusted according to the material and curvature of the car cover. When it is necessary to increase the tension, the electric push rod 210 pushes the conical cylinder 211 towards the arc-shaped limiting block 202. The conical outer wall of the conical cylinder 211 simultaneously pushes multiple movable rods 204 and overcomes the spring 202. 7. The elastic force causes the movable rod 204 to slide upward along the arc-shaped guide block 203, driving the top connecting block 208 and the rolling rod 209 to expand outward, thereby stretching the car wrap film to generate tension. When it is necessary to reduce the tension, the electric push rod 210 retracts, driving the conical cylinder 211 to retract. The movable rod 204 returns to its original position under the elastic force of the spring 207, and the rolling rod 209 moves inward, thereby reducing the tension of the car wrap film. During the bonding process, the rolling rod 209 contacts the surface of the car wrap film by rotating, which facilitates the movement of the car wrap. At the same time, the roller 104 assists the car wrap film in maintaining a constant tension during the dynamic bonding process.

[0038] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tension-adjustable paint protection film application aid device, characterized in that: Includes a limiting component (1), and a tension adjusting component (2) is provided at the top of the limiting component (1). The limiting component (1) includes a fixing base (101); The tension adjustment assembly (2) includes a support leg (201) fixedly installed on the top of the fixed base (101). An arc-shaped limiting block (202) is fixedly connected to the top of the support leg (201). An arc-shaped guide block (203) is fixedly connected to the top of the arc-shaped limiting block (202). Multiple equidistant movable rods (204) that pass through the arc-shaped guide block (203) are slidably connected inside the arc-shaped limiting block (202). A connecting block (208) is fixedly connected to the top of the movable rod (204). A rolling rod (209) is rotatably connected to the outer wall of the connecting block (208).

2. The adjustable tension paint protection film application aid device according to claim 1, characterized in that: The top of the fixed base (101) and the left and right sides of the support leg (201) are rotatably connected to a rotating shaft (103), and a roller (104) is fixedly connected to the outer wall of the rotating shaft (103).

3. The adjustable tension paint protection film application aid device according to claim 2, characterized in that: The bottom end of the fixed base (101) is fixedly connected to two symmetrical support legs (102).

4. The adjustable tension paint protection film application aid device according to claim 1, characterized in that: The bottom end of the movable rod (204) is fixedly connected to two symmetrical support arms (205), and a semi-column block (206) is fixedly connected to the end of the support arm (205) away from the movable rod (204).

5. The adjustable tension paint protection film application aid device according to claim 4, characterized in that: A spring (207) is fixedly connected to the top of the semi-cylinder block (206), and the top of the spring (207) is fixedly connected to the bottom wall of the arc-shaped guide block (203).

6. The adjustable tension paint protection film application aid device according to claim 1, characterized in that: An electric push rod (210) is fixedly connected to the inner wall of the fixed base (101). A conical cylinder (211) is fixedly connected to the transmission end of the electric push rod (210). The end of the conical cylinder (211) away from the electric push rod (210) passes through the arc-shaped limiting block (202) and is adapted to the movable rod (204).

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