A paint protection device for a vehicle part
By designing a protective device that adapts to bearing caps of different specifications, the problems of insufficient sealing and cumbersome operation were solved, achieving efficient paint protection and improving the efficiency and versatility of the paint spraying process.
Patent Information
- Application Number
- CN202620202063.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2036-02-11
AI Technical Summary
Existing protective devices for automotive parts painting have insufficient sealing, leading to paint leakage. They also have limited compatibility, only matching specific types of bearing caps, and are cumbersome to operate, increasing the time required for the painting process.
A protective device was designed, comprising a bearing cap support frame, an extended platform, a flexible connecting sleeve, a positioning plug, an operating handle, an end face shield, and a buffer pad. Through the combination of an integrated structure and flexible materials, it achieves all-round sealing and quick loading and unloading, and is compatible with bearing caps of different specifications.
It improves sealing performance, enhances the versatility of the device, simplifies the operation process, reduces the time spent on the painting process, and improves processing efficiency.
Smart Images
Figure CN224926286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary equipment for automotive parts processing, specifically a protective device for paint spraying on automotive parts. Background Technology
[0002] In the existing technology system of automotive parts painting process, it is clear that the cross-section and inner surface of automotive bearing cap are areas that cannot be painted. When painting this part, its silver parts need to be protected by a special masking device. Based on this requirement, a suitable paint protection cap device has been designed. This device can be fitted onto the part of the bearing cap that needs protection to achieve masking of non-painted areas. It is a commonly used auxiliary protective structure in this process to prevent non-target areas from being contaminated by paint.
[0003] In actual use, the protective device is prone to paint leakage into the protected area due to insufficient sealing between the protective structure and the bearing cap, resulting in contamination of non-painted areas. Furthermore, the existing structure has limited compatibility, only matching specific models of automotive bearing caps, and has poor versatility for different parts. In addition, the existing protective device has a cumbersome installation and removal process, which further increases the time required for the painting process. Utility Model Content
[0004] The purpose of this utility model is to provide a protective device for paint spraying on automotive parts, in order to solve the problems mentioned in the background art, such as insufficient sealing between the protective structure and the bearing cap, which easily leads to paint leakage into the protected area, resulting in contamination of non-painted areas. In addition, the existing structure has limited compatibility, only matching specific models of automotive bearing caps, and has poor universality for parts of different specifications. Furthermore, the existing protective device has a cumbersome installation and removal process, which further increases the time spent on the painting process.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for paint spraying on automotive parts, including a bearing cap support frame, which has a disc-shaped structure and is used to support the bottom area of the automotive bearing cap to be protected; An extension platform is provided in the middle of the top surface of the bearing cap support frame. The extension platform is a support structure for passing through the hole of the automotive bearing cap. A limiting groove is provided inside the extension platform, and a positioning plug is adapted to be installed in the limiting groove. An operating handle is fixed to the top of the positioning plug, and a connecting hole is provided at the top of the operating handle. A positioning thread end is provided on the surface of the operating handle, and the positioning thread end is close to one end of the positioning plug. The positioning threaded end is threadedly connected to the inner wall of the end face shielding plate, and the end face shielding plate has an annular structure. The bottom end of the end face shielding plate has an annular hole, and a buffer pad is installed in the annular hole.
[0006] By adopting the above technical solution, the bearing cap bottom, inner hole and end face are protected in all directions through the coordinated operation of the extended platform cylinder, positioning plug, operating handle, end face shielding plate and buffer pad.
[0007] Preferably, the bearing cap support frame and the extension platform are an integrated structure, and the shape of the bearing cap support frame and the extension platform is adapted to the internal cavity contour of the automotive bearing cap.
[0008] By adopting the above technical solution, the bearing cap support frame and the extended platform are integrated into a single structure, which improves the overall strength and stability of the device. At the same time, it adapts to the inner contour of the bearing cap, ensuring accurate positioning during assembly and reducing sealing failure caused by assembly deviation.
[0009] Preferably, the outer wall of the extension stage is provided with positioning grooves at equal intervals, and a flexible connecting sleeve is fitted on the outer wall of the extension stage, with the outer wall of the flexible connecting sleeve abutting against the inner wall of the bearing cap.
[0010] By adopting the above technical solution, the positioning groove on the outer wall of the extended platform cylinder is matched with the flexible connecting sleeve to achieve stable fixation of the flexible connecting sleeve. Its outer wall abuts against the inner wall of the bearing cap, fills the gap, enhances the sealing performance of the inner hole area, and avoids paint leakage.
[0011] Preferably, the flexible connecting sleeve is made of rubber material that is resistant to paint corrosion, and the inner wall of the flexible connecting sleeve is provided with a protruding structure that is adapted to the positioning groove of the extension platform cylinder.
[0012] By adopting the above technical solution, the flexible connecting sleeve made of paint-resistant rubber can avoid paint erosion and damage.
[0013] Preferably, the lower end of the positioning plug has a frustum-shaped structure, and the sidewall of the positioning plug is provided with a flexible wear-resistant layer.
[0014] By adopting the above technical solution, the lower end of the positioning plug has a truncated cone-shaped structure and a flexible wear-resistant layer on the side wall, which can be adapted to the inner hole of bearing caps with different inner diameters, improving the versatility of the device. At the same time, it can achieve precise sealing of the inner hole, enhance the sealing effect, and extend the service life of the wear-resistant layer.
[0015] Preferably, the diameter of the end face shield is larger than the maximum diameter of the end face of the automotive bearing cap, and the edge of the end face shield extends towards the bottom surface to form an annular retaining edge.
[0016] Using the above technical solution, the diameter of the end face shielding plate is larger than that of the bearing cap end face. Combined with the edge ring guard, it can fully cover the end face area to be protected, prevent paint from seeping along the edge of the end face, and improve the reliability of end face protection.
[0017] Preferably, the buffer pad is an annular structure coaxial with the end face shielding plate, and the buffer pad is made of elastic silicone.
[0018] Using the above technical solution, the annular buffer pad made of elastic silicone material can buffer the contact force between the end face shielding plate and the bearing cap, thus avoiding damage to the surface of the parts.
[0019] Compared with the prior art, the beneficial effects of this utility model are: This automotive parts surface paint protection device: 1. The flexible connecting sleeve of this device, which is fitted on the outer wall of the extended stage, is made of rubber material that is resistant to paint corrosion. Its inner wall protrusion is adapted and fixed to the positioning groove of the extended stage. The outer wall can be tightly abutted against the inner wall of the bearing cap to fill the gap. The cone-shaped structure at the lower end of the positioning plug, together with the flexible wear-resistant layer on the side wall, can accurately seal the inner hole channel of the bearing cap. At the same time, the elastic silicone buffer pad at the bottom of the end face shielding plate can be tightly fitted to the end face of the bearing cap, and the edge ring-shaped baffle further covers the edge gap of the end face. 2. The truncated cone structure of the positioning plug can be adapted to the inner bore of bearing caps with different inner diameters. The flexible wear-resistant layer on its sidewall has elastic deformation capability, which can further adapt to the slight differences in bore diameter. At the same time, the rubber material of the flexible connecting sleeve has good deformation characteristics. Combined with the integrated structure design of the extension cylinder and bearing cap support frame that adapts to the inner cavity contour of the bearing cap, the device can stably adapt to various models of automotive bearing caps, effectively improving the versatility of the protective device and reducing the equipment replacement cost when processing parts of different specifications. 3. The connecting hole at the top of the operating handle facilitates hand gripping or operation with tools. The positioning thread end on its surface is threaded to the inner wall of the end face shield. Rotating the operating handle can quickly lock and unlock the end face shield without complicated disassembly and assembly steps. At the same time, the integrated structure of the bearing cap support frame and the extension cylinder ensures the stability of the overall disassembly and assembly of the device, reduces the step-by-step operation process, effectively shortens the operation time of the painting process, and improves the overall processing efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model; Figure 3 This is a schematic diagram of the overall internal side section of the present invention. Figure 4 This is a top-section three-dimensional structural diagram of the overall internal structure of this utility model; Figure 5 This is a three-dimensional structural diagram of the bearing cap support frame and operating handle of this utility model. Figure 6 This is a three-dimensional structural diagram of the positioning plug and buffer pad of this utility model.
[0021] In the diagram: 1. Bearing cap support frame; 2. Extended platform cylinder; 3. Flexible connecting sleeve; 4. Positioning plug; 5. Operating handle; 6. Positioning thread end; 7. End face shielding plate; 8. Buffer pad. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-6 This utility model provides a technical solution: a protective device for paint spraying on automotive parts, including a bearing cap support frame 1, an extension platform 2, a flexible connecting sleeve 3, a positioning plug 4, an operating handle 5, a positioning threaded end 6, an end face shielding plate 7, and a buffer pad 8. Among them, the bearing cap support frame 1 has a disc-shaped structure and is used to support the bottom area of the automotive bearing cap to be protected; The bearing cap support frame 1 and the extension platform 2 are an integrated structure, and the shape of the bearing cap support frame 1 and the extension platform 2 is adapted to the internal cavity contour of the automotive bearing cap. The outer wall of the extension platform 2 is provided with positioning grooves at equal intervals, and the outer wall of the extension platform 2 is fitted with a flexible connecting sleeve 3, and the outer wall of the flexible connecting sleeve 3 abuts against the inner wall of the bearing cap. The flexible connecting sleeve 3 is made of rubber material that is resistant to paint corrosion, and the inner wall of the flexible connecting sleeve 3 is provided with a protrusion structure that is adapted to the positioning groove of the extension platform 2. The extension platform 2 is provided in the middle of the top surface of the bearing cap support frame 1, and the extension platform 2 is a support structure for passing through the hole of the automotive bearing cap. The extension platform 2 is provided with a limiting groove, and a positioning plug 4 is adapted to be installed in the limiting groove. The top of the positioning plug 4 is fixed with an operating handle 5, and the top of the operating handle 5 is provided with a connecting hole. The surface of the operating handle 5 is provided with a positioning thread end 6, and the positioning thread end 6 is close to the end of the positioning plug 4. Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, the flexible connecting sleeve 3 is inserted into the positioning grooves equidistantly opened on the outer wall of the extension platform cylinder 2 through the pre-set protrusion structure on its inner wall. By utilizing the matching relationship between the protrusion and the positioning groove, the flexible connecting sleeve 3 and the extension platform cylinder 2 are stably fixed. Holding the operating handle 5, the device is aligned with the car bearing cap to be protected, and the extension platform cylinder 2 is slowly inserted into the hole of the car bearing cap until the top surface of the bearing cap support frame 1 is completely in contact with the bottom area of the car bearing cap to be protected. Since the bearing cap support frame 1 and the extension platform cylinder 2 are an integrated structure and their shapes are adapted to the internal cavity contour of the car bearing cap, bottom support positioning can be quickly achieved. Meanwhile, the outer wall of the flexible connecting sleeve 3, which is sleeved on the outside of the extension platform 2, is in close contact with the inner wall of the car bearing cap. The rubber material of the flexible connecting sleeve 3, which is resistant to paint corrosion, fills the gap between the two to achieve a preliminary seal. Finally, the positioning plug 4 is aligned with the limiting groove opened inside the extension platform 2 and is fitted into the groove. The cone-shaped structure at the lower end of the positioning plug 4, together with the flexible wear-resistant layer on its side wall, further seals the inner hole channel of the car bearing cap, completing the sealing and positioning of the inner hole area. While holding the operating handle 5, the positioning thread end 6 near the positioning plug 4 is rotated. Since the positioning thread end 6 is threadedly connected to the inner wall of the end face shield 7, the rotation can drive the annular end face shield 7 to move downward along the axis of the operating handle 5 until the bottom surface of the end face shield 7 is completely in contact with the end face of the car bearing cap to be protected. At this time, the buffer pad 8 installed in the annular hole at the bottom of the end face shielding plate 7 simultaneously contacts the end face of the automotive bearing cap, which not only buffers the contact force between the end face shielding plate 7 and the bearing cap to avoid damage to the surface of the parts, but also further enhances the end face sealing effect. At the same time, the annular baffle formed by the edge of the end face shielding plate 7 extending to the bottom can completely cover the end face edge area of the automotive bearing cap, achieving full locking of end face protection. The positioning thread end 6 is threadedly connected to the inner wall of the end face shield 7, and the end face shield 7 is a ring structure. The bottom end of the end face shield 7 is provided with an annular hole, and a buffer pad 8 is installed in the annular hole. The diameter of the end face shield 7 is larger than the maximum diameter of the end face of the automobile bearing cap, and the edge of the end face shield 7 extends to the bottom to form an annular retaining edge. The buffer pad 8 is a ring structure coaxial with the end face shield 7, and the material of the buffer pad 8 is elastic silicone. Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, after the protective device is installed and locked, the area to be painted on the car bearing cap can be painted. During this process, the components of the device form a collaborative protection system. The bearing cap support frame 1 covers the non-painted area at the bottom of the car bearing cap. The extension platform 2, flexible connecting sleeve 3 and positioning plug 4 work together to seal the non-painted area of the inner hole. The end face shielding plate 7 and buffer pad 8 cover the non-painted area of the end face. The three work together precisely to expose only the area to be painted, effectively preventing paint from seeping into the non-painted area and ensuring the painting accuracy. After the painting operation is completed, rotate the operating lever 5 in the opposite direction to drive the positioning thread end 6 to rotate, so that the end face shielding plate 7 moves upward along the axis of the operating lever 5, releasing the contact lock with the end face of the car bearing cap. Then, hold the operating lever 5 and pull it upward to remove the positioning plug 4 from the limiting groove of the extension stage 2. Finally, continue to pull the operating lever 5 to pull the extension stage 2 and the flexible connecting sleeve 3 sleeved on it out of the hole of the car bearing cap, so that the bearing cap support frame 1 is separated from the bottom of the car bearing cap, completing the disassembly of the entire device. The disassembled device can be cleaned and prepared for the next painting protection operation of the car bearing cap.
[0024] Working principle: When using this automotive parts surface paint protection device, the flexible connecting sleeve 3 is inserted into the positioning groove on the outer wall of the extension platform cylinder 2 through the inner wall protrusion structure to complete the stable fixation of the two, in preparation for the subsequent fitting of the bearing cap. Connect the device to the car bearing cap, so that the extended platform cylinder 2 is inserted into the bearing cap hole, the bearing cap support frame 1 fits against the bottom of the bearing cap to be protected area, and at the same time, the outer wall of the flexible connecting sleeve 3 is tightly abutted against the inner wall of the bearing cap, and the positioning plug 4 is embedded in the limiting groove of the extended platform cylinder 2. Its conical lower end cooperates with the flexible wear-resistant layer to seal the inner hole, so as to achieve the sealing and positioning of the inner hole area. Hold the operating lever 5 with the connecting hole, tighten the annular end face shield 7 through the positioning thread end 6, so that its bottom surface is in contact with the end face of the bearing cap. The buffer pad 8 in the bottom groove of the end face shield 7 simultaneously contacts the end face, which not only buffers the force but also strengthens the seal. Its annular edge covers the edge of the end face to complete the protection and locking. During painting, the bearing cap support bracket 1 blocks the bottom, the extension cylinder 2, the flexible connecting sleeve 3, the positioning plug 4 seals the inner hole, the end face shielding plate 7 and the buffer pad 8 cover the end face, accurately exposing the painting area; after painting, unscrew the positioning thread end 6 in the opposite direction, hold the operating lever 5 to remove the positioning plug 4, and the extraction device is disassembled, increasing the overall practicality.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A protective device for paint spraying on automotive parts, comprising: The bearing cap support frame (1) has a disc-shaped structure and is used to support the bottom area of the automotive bearing cap to be protected. The feature is that: an extension platform (2) is provided in the middle of the top surface of the bearing cap support frame (1), and the extension platform (2) is a support structure for passing through the hole of the automobile bearing cap. A limiting groove is opened inside the extension platform (2), and a positioning plug (4) is adapted to be installed in the limiting groove. An operating handle (5) is fixed at the top of the positioning plug (4), and a connecting hole is provided at the top of the operating handle (5). A positioning thread end (6) is provided on the surface of the operating handle (5), and the positioning thread end (6) is close to one end of the positioning plug (4). The positioning thread end (6) is threadedly connected to the inner wall of the end face shield (7), and the end face shield (7) is a ring structure. The bottom end of the end face shield (7) is provided with an annular hole, and a buffer pad (8) is installed in the annular hole.
2. The paint protection device for automotive parts according to claim 1, characterized in that: The bearing cap support frame (1) and the extension platform (2) are an integrated structure, and the shape of the bearing cap support frame (1) and the extension platform (2) is adapted to the internal cavity contour of the automobile bearing cap.
3. The paint protection device for automotive parts according to claim 1, characterized in that: The outer wall of the extension platform (2) is provided with positioning grooves at equal intervals, and the outer wall of the extension platform (2) is fitted with a flexible connecting sleeve (3), and the outer wall of the flexible connecting sleeve (3) abuts against the inner wall of the bearing cap.
4. The paint protection device for automotive parts according to claim 3, characterized in that: The flexible connecting sleeve (3) is made of rubber material that is resistant to paint corrosion, and the inner wall of the flexible connecting sleeve (3) is provided with a protruding structure that is compatible with the positioning groove of the extension platform (2).
5. The paint protection device for automotive parts according to claim 1, characterized in that: The lower end of the positioning plug (4) has a frustum-shaped structure, and the side wall of the positioning plug (4) is provided with a flexible wear-resistant layer.
6. The paint protection device for automotive parts according to claim 1, characterized in that: The diameter of the end face shield (7) is greater than the maximum diameter of the end face of the automobile bearing cap, and the edge of the end face shield (7) extends to the bottom surface to form an annular retaining edge.
7. The paint protection device for automotive parts according to claim 1, characterized in that: The buffer pad (8) is a ring structure coaxial with the end face shielding plate (7), and the material of the buffer pad (8) is elastic silicone.