Auxiliary frame for quickly positioning and paving paint protective film

Abstract

The utility model relates to the technical field of automobile care, and discloses a paint surface protective film rapid positioning paving auxiliary frame which comprises a film pasting frame, a positioning mechanism is slidably connected in the film pasting frame, a film fixing mechanism is slidably connected in the film pasting frame, a film fixing groove is formed in the film pasting frame, the positioning mechanism comprises a plurality of lead screws, and the lead screws are connected with the positioning mechanism. The outer sides of a plurality of lead screws are slidably connected to the interior of the film pasting frame, the tops of the lead screws are fixedly connected with limiting blocks, the outer sides of the lead screws are in threaded connection with adjusting rings, the bottoms of the lead screws are fixedly connected with rotating seats, and the bottoms of the rotating seats are rotationally connected with rotating balls. According to the vehicle shell film pasting tool, the auxiliary frame can conduct self-adaptive attaching and fixing on the outer surfaces of different vehicle shells, so that the universality of the film pasting tool is improved, the cost that various special tools need to be arranged due to the difference of the vehicle shells is reduced, and the problems of film pasting wrinkles, bubbles or gaps and the like caused by poor attaching are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive care technology, and in particular to an auxiliary frame for quick positioning and application of paint protection film. Background Technology

[0002] Paint protection film is a transparent film applied to the surface of a car's paint, often made of TPU. It plays multiple crucial roles, such as blocking ultraviolet rays to prevent fading and aging of the paint due to prolonged sun exposure; protecting against damage from stones and branches encountered during daily driving; and even self-healing minor scratches, keeping the paint looking brand new. When applying the film, the installation guide frame is a vital step, as it precisely positions the film, assisting installers in quickly aligning it and ensuring a precise and seamless fit between the film and various parts of the car body, thereby improving efficiency and the final result.

[0003] A paint protection film quick-positioning and application aid frame typically consists of a frame body, positioning marks, and an adsorption device. The frame body defines the approximate application area and boundaries of the protective film. The positioning marks help the installer precisely align the protective film with the vehicle body, ensuring accurate placement. The adsorption device ensures the aid frame adheres tightly to the vehicle body, preventing it from shifting easily during application. Its working principle is to create a stable positioning area on the vehicle surface through adsorption. During application, based on the positioning marks and frame boundaries, the paint protection film can be quickly and accurately applied to the corresponding positions on the vehicle body, thereby improving application efficiency and quality.

[0004] In existing technologies, due to aesthetic and practical considerations, the exterior of car bodies is often designed with a curved streamline shape, making it difficult for some auxiliary frames to adaptively adjust and fix to different shapes of car body exteriors. This results in inaccurate film placement and poor adhesion, making it difficult for the protective film to effectively protect the car paint. To address this issue, a quick positioning and application auxiliary frame for paint protection film is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick positioning and application auxiliary frame for paint protection film, which aims to improve the problem of adaptive adjustment and fixation of some auxiliary frames in the prior art for different shaped car body surfaces.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quick positioning and application auxiliary frame for paint protection film includes an application frame, a positioning mechanism slidably connected inside the application frame, a film fixing mechanism slidably connected inside the application frame, and a film fixing groove opened inside the application frame.

[0008] The positioning mechanism includes multiple lead screws, the outer sides of which are slidably connected to the inside of the film-applying frame. A limit block is fixedly connected to the top of each lead screw, an adjusting ring is threadedly connected to the outer side of each lead screw, a rotating seat is fixedly connected to the bottom of each lead screw, a rotating ball is rotatably connected to the bottom of the rotating seat, a connecting rod is fixedly connected to the outer wall of the rotating ball, and a suction cup is fixedly connected to the other end of the connecting rod.

[0009] As a further description of the above technical solution:

[0010] The film-fixing mechanism includes multiple extrusion columns, the outer walls of which are slidably connected to the inside of the film-applying frame. A fixing ring is fixedly connected to the outer bottom of each extrusion column, a spring is sleeved on the outer side of each extrusion column, and a pressure plate is fixedly connected to the bottom of each extrusion column.

[0011] As a further description of the above technical solution:

[0012] The bottom of the adjusting ring is rotatably connected to the top of the film-applying frame, and the outer diameter of the limiting block is larger than the outer diameter of the lead screw;

[0013] As a further description of the above technical solution:

[0014] The bottom of the rotating seat is provided with a cross groove, and the outer wall of the connecting rod is slidably connected to the inside of the cross groove;

[0015] As a further description of the above technical solution:

[0016] The top of the film-applying frame is fixedly connected to multiple fixing posts, and a cam is rotatably connected to the adjacent side of two adjacent fixing posts.

[0017] As a further description of the above technical solution:

[0018] A contact plate is fixedly connected to the top of the extrusion column, and the top of the contact plate contacts the outer side of the cam.

[0019] As a further description of the above technical solution:

[0020] One end of the spring is fixedly connected to the top of the fixing ring, and the other end of the spring is fixedly connected to the top inner wall of the film-applying frame.

[0021] As a further description of the above technical solution:

[0022] The shape of the pressure plate matches the shape of the solidification groove, and the outer wall of the pressure plate is slidably connected to the inside of the solidification groove.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by placing the film-applying frame on the exterior of the car body and pressing it down, the suction cup is used to adsorb and fix it to the surface of the car body. When encountering uneven areas of the car body, the rotating ball rotates and drives the connecting rod to slide in the cross groove, adjusting the angle of the suction cup to adapt to the car body and achieving initial stability. Then, the adjusting ring is rotated, and the adjusting ring is moved vertically downward with the help of the lead screw, which moves the film-applying frame closer to the car body. This enables the auxiliary frame to adaptively fit and fix to different car body surfaces, thereby improving the versatility of the film-applying tool, reducing the cost of equipping multiple special tools due to differences in car bodies, and ensuring a tight and stable connection between the auxiliary frame and the car body during the film-applying process, effectively avoiding problems such as film wrinkles, bubbles, or gaps caused by poor fit.

[0025] 2. In this utility model, by placing the protective film into the film-fixing groove, and then rotating the cam, the cam's raised surface pushes the contact plate, driving the extrusion column and fixing ring downwards to stretch the spring and store energy. At the same time, the extrusion column pushes the pressure plate down, thereby pressing and fixing the protective film. After the film is applied, the cam can be rotated in the opposite direction, and the pressure plate can be released by the spring force, which makes it easier to replace the protective film for the next film application operation, improving the efficiency and flexibility of the film application work, and reducing the time and labor costs of a single film application. Attached Figure Description

[0026] Figure 1 A three-dimensional schematic diagram of the auxiliary frame for rapid positioning and application of the paint protection film proposed in this utility model;

[0027] Figure 2 A schematic diagram of the film-applying frame of the paint protection film quick positioning and application auxiliary frame proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Film application frame; 2. Lead screw; 3. Limiting block; 4. Adjusting ring; 5. Rotating seat; 6. Cross groove; 7. Rotating ball; 8. Connecting rod; 9. Suction cup; 10. Film fixing groove; 11. Fixing post; 12. Cam; 13. Extrusion column; 14. Contact plate; 15. Fixing ring; 16. Spring; 17. Pressure plate. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a paint protection film quick positioning and application auxiliary frame, including an application frame 1. The application frame 1 has a certain degree of elasticity to adapt to the surface of the car body with different flatness, and allows the application process to be carried out in an orderly space, avoiding application errors caused by unstable application environment, thereby improving the success rate and quality of application. A positioning mechanism is slidably connected inside the application frame 1 to ensure that the auxiliary frame can accurately adhere to the car body surface. A film fixing mechanism is slidably connected inside the application frame 1, and a film fixing groove 10 is formed inside the application frame 1.

[0034] The positioning mechanism includes multiple lead screws 2, the outer sides of which are slidably connected to the inside of the film frame 1, allowing the film frame 1 to slide along the lead screws 2 and thus ensuring the entire film frame 1 is close to the exterior of the car body. A limiting block 3 is fixedly connected to the top of each lead screw 2. The outer diameter of the limiting block 3 is larger than the outer diameter of the lead screw 2. The function of the limiting block 3 is to prevent the lead screw 2 from detaching from the top of the film frame 1 during its up-and-down sliding process, thus avoiding disruption to the continuity and accuracy of the entire film application process due to the lead screw 2 falling off. An adjusting ring 4 is threadedly connected to the outer side of each lead screw 2. The bottom of the adjusting ring 4 is rotatably connected to the top of the film frame 1. By rotating the adjusting ring 4, the adjusting ring 4 can perform linear motion along the axial direction of the lead screw 2, thereby causing the film frame 1 to move synchronously along the axial direction of the lead screw 2, ensuring the film frame 1 is tightly fitted to the exterior of the car body. The bottom of the lead screw 2 is fixedly connected to a rotating seat 5, and the bottom of the rotating seat 5 is rotatably connected to a rotating ball 7. The rotating seat 5 provides a rotating support base for the rotating ball 7, so that the rotating ball 7 can rotate freely inside the rotating seat 5, thereby driving the subsequent structure to make corresponding angle changes.

[0035] A connecting rod 8 is fixedly connected to the outer wall of the rotating ball 7. The connecting rod 8 is used to transmit the rotation of the rotating ball 7 to the subsequent structure, enabling the subsequent structure to rotate accordingly. A cross groove 6 is provided at the bottom of the rotating seat 5. The outer wall of the connecting rod 8 is slidably connected to the inside of the cross groove 6, thereby limiting the rotation range of the connecting rod 8 through the cross groove 6, so that the connecting rod 8 can stably rotate at corresponding angles in the lateral and longitudinal directions. A suction cup 9 is fixedly connected to the other end of the connecting rod 8. When the film frame 1 is close to the surface of the car body, by pressing the film frame 1, the air in the suction cup 9 is expelled, forming a negative pressure, thereby firmly adhering the suction cup 9 to the surface of the car body, thus achieving precise and rapid positioning of the auxiliary frame.

[0036] Reference Figure 1 , Figure 2 , Figure 4 The film-fixing mechanism includes multiple extrusion columns 13, the outer walls of which are slidably connected to the inside of the film-applying frame 1. The sliding of the extrusion columns 13 within the film-applying frame 1 fixes the protective film, facilitating the application of the film along the inner side of the auxiliary frame. A fixing ring 15 is fixedly connected to the bottom outer side of each extrusion column 13, providing a foundation for the installation and movement of subsequent structures. A spring 16 is fitted onto the outer side of each extrusion column 13. One end of the spring 16 is fixedly connected to the top of the fixing ring 15, and the other end is fixedly connected to the top inner wall of the film-applying frame 1. The spring 16 provides a power foundation for the subsequent reset structure. When the extrusion column 13 drives the fixing ring 15 downwards, the spring 16 stretches and automatically resets after the external force is removed, thereby driving the extrusion column 13 and fixing ring 15 upwards for easy replacement of the protective film. Multiple extrusion columns 13 are fixedly connected to a pressure plate 17 at their bottom. The shape of the pressure plate 17 matches the shape of the film-fixing groove 10. The outer wall of the pressure plate 17 is slidably connected to the inside of the film-fixing groove 10. Driven by the extrusion columns 13, the pressure plate 17 can slide up and down in the film-fixing groove 10, pressing the film flatly onto the surface of the car body, ensuring that the film can completely cover the surface of the car body, and improving the integrity and aesthetics of the film application.

[0037] Multiple fixing posts 11 are fixedly connected to the top of the film-applying frame 1. The fixing posts 11 provide a rotational foundation for subsequent structures. A cam 12 is rotatably connected to the adjacent side of two adjacent fixing posts 11. The cam 12 provides power for the vertical movement of the extrusion column 13. Due to the convex shape of the cam 12, the entire extrusion column 13 can self-lock after descending, thereby ensuring the stability of the film-applying process. A contact plate 14 is fixedly connected to the top of the extrusion column 13. The contact plate 14 increases the contact area with the cam 12, thereby making the transmission smoother. The top of the contact plate 14 contacts the outer side of the cam 12. When the cam 12 rotates, its protruding part contacts the contact plate 14 on the top of the extrusion column 13 and pushes the contact plate 14 downward, thereby driving the extrusion column 13 and the pressure plate 17 to move downward to fix the film. The cam 12 can be rotated again during the next film application to remove the pressure on the contact plate 14, so that the pressure plate 17 can rise as the spring 16 returns to its original deformation, so as to fix the protective film required for the next film application again.

[0038] Working principle: First, place the entire film frame 1 on the surface of the car body, then press the film frame 1 down. The downward pressure of the film frame 1 will expel the air inside the suction cup 9, thereby stabilizing the entire film frame 1. When the suction cup 9 contacts the uneven surface of the car body, the rotation of the rotating ball 7 will allow the connecting rod 8 to slide along the cross groove 6, so that the angle of the entire suction cup 9 can fit the surface of the car body more closely. Thus, the entire film frame 1 can adapt to car bodies with different flatness.

[0039] During the application of the protective film, the protective film is placed in the film-fixing groove 10, and then the cam 12 is rotated. The rotation of the cam 12 causes the convex surface of the cam 12 to contact the contact plate 14, thereby generating a downward thrust on the contact plate 14. This drives the extrusion column 13 and the fixing ring 15 to move downward. During the descent, the fixing ring 15 stretches the spring 16, causing the spring 16 to accumulate potential energy. This energy, through the downward movement of the extrusion column 13, drives the pressure plate 17 to move downward, pressing and fixing the protective film.

[0040] Then, by rotating the adjusting ring 4, the rotation of the adjusting ring 4 causes the adjusting ring 4 to move vertically on the lead screw 2. The downward movement of the adjusting ring 4 drives the entire film frame 1 to move downward, that is, to move closer to the surface of the car body for bonding. Then, by flattening the protective film, the entire protective film can be stretched downward along the inner side of the film frame 1 and applied to the outer surface of the car body. Finally, it is cut along the inner edge of the film frame 1, thus achieving precise positioning of the entire film application process.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick positioning and application auxiliary frame for paint protection film, including an application frame (1), characterized in that: The film-applying frame (1) is slidably connected to a positioning mechanism, and the film-fixing mechanism is slidably connected to the inside of the film-applying frame (1). A film-fixing groove (10) is opened inside the film-applying frame (1). The positioning mechanism includes multiple lead screws (2), the outer sides of which are slidably connected to the inside of the film frame (1). A limit block (3) is fixedly connected to the top of the lead screw (2), an adjusting ring (4) is threadedly connected to the outer side of the lead screw (2), a rotating seat (5) is fixedly connected to the bottom of the lead screw (2), a rotating ball (7) is rotatably connected to the bottom of the rotating seat (5), a connecting rod (8) is fixedly connected to the outer wall of the rotating ball (7), and a suction cup (9) is fixedly connected to the other end of the connecting rod (8).

2. The paint protection film quick positioning and application auxiliary frame according to claim 1, characterized in that: The film-fixing mechanism includes multiple extrusion columns (13), the outer walls of the multiple extrusion columns (13) are slidably connected to the inside of the film-applying frame (1), a fixing ring (15) is fixedly connected to the bottom outer side of the extrusion column (13), a spring (16) is sleeved on the outer side of the extrusion column (13), and a pressure plate (17) is fixedly connected to the bottom of the multiple extrusion columns (13).

3. The paint protection film quick positioning and application auxiliary frame according to claim 1, characterized in that: The bottom of the adjusting ring (4) is rotatably connected to the top of the film frame (1), and the outer diameter of the limiting block (3) is larger than the outer diameter of the lead screw (2).

4. The paint protection film quick positioning and application auxiliary frame according to claim 1, characterized in that: The bottom of the rotating seat (5) is provided with a cross groove (6), and the outer wall of the connecting rod (8) is slidably connected to the inside of the cross groove (6).

5. The paint protection film quick positioning and application auxiliary frame according to claim 2, characterized in that: The top of the film frame (1) is fixedly connected to a plurality of fixing posts (11), and a cam (12) is rotatably connected to the adjacent side of two adjacent fixing posts (11).

6. The paint protection film quick positioning and application auxiliary frame according to claim 5, characterized in that: The top of the extrusion column (13) is fixedly connected to a contact plate (14), and the top of the contact plate (14) is in contact with the outer side of the cam (12).

7. The paint protection film quick positioning and application auxiliary frame according to claim 2, characterized in that: One end of the spring (16) is fixedly connected to the top of the fixing ring (15), and the other end of the spring (16) is fixedly connected to the top inner wall of the film frame (1).

8. The paint protection film quick positioning and application auxiliary frame according to claim 2, characterized in that: The shape of the pressure plate (17) matches the shape of the solid film groove (10), and the outer wall of the pressure plate (17) is slidably connected to the inside of the solid film groove (10).

Images