A paint polishing device for car care

Abstract

This utility model discloses a paint polishing device for automotive care, including a polishing body and a first polishing disc. The first polishing disc is rotatably connected to the bottom of the polishing body, and a disc carrier is fixed to the top of the polishing body. Connecting rod assemblies are rotatably connected to both sides of the polishing body. A positioning ring is fixed to one end of each connecting rod assembly. A ball bearing is fitted to the inner wall of the positioning ring, and a shaft is rotatably connected to the inner wall of the positioning ring. A second polishing disc is fixed to one end of the shaft, and a connector is fixed to the end of the shaft away from the second polishing disc. Integrated coarse and fine polishing: This device, through a detachable linkage design of the first and second polishing discs, allows for quick switching to fine polishing mode after coarse polishing without replacing the entire machine or requiring additional disassembly tools. Combined with the locking structure of the limiting block and elastic element, it ensures stable transmission after the dual discs are installed, significantly improving polishing efficiency and reducing process changeover time.

Description

Technical Field

[0001] This utility model relates to the field of automotive care technology, specifically to a paint polishing device for automotive care. Background Technology

[0002] In the field of automotive care, paint polishing is a key process for restoring the gloss of car paint and removing minor scratches, and the performance of the equipment directly affects the polishing efficiency and effect. Currently, most automotive paint polishing devices on the market use a single polishing disc structure, requiring manual replacement of polishing discs of different materials to switch between coarse and fine polishing processes. This operation is cumbersome and time-consuming, resulting in low work efficiency.

[0003] Existing technologies generally suffer from technical defects. For example, the power transmission structure of multi-polishing discs is complex, making it difficult to achieve coaxial power distribution. Power loss can easily lead to unstable polishing disc rotation speed. At the same time, the reliability of the polishing disc installation and disassembly mechanism is insufficient, and loosening or jamming can easily occur when frequently switching processes, affecting the continuity of operation. Utility Model Content

[0004] The purpose of this invention is to provide a paint polishing device for automobile care, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a polishing machine body and a first polishing disc. The first polishing disc is rotatably connected to the bottom end of the polishing machine body, and a disc carrier is fixed to the top end of the polishing machine body. Connecting rod assemblies are rotatably connected to both sides of the polishing machine body. A positioning ring is fixed to one end of each connecting rod assembly. A ball bearing is fitted to the inner wall of the positioning ring. A shaft is rotatably connected to the inner wall of the positioning ring. A second polishing disc is fixed to one end of the shaft, and a connector is fixed to the end of the shaft away from the second polishing disc.

[0006] Preferably, the connecting rod assembly includes a first connecting member, which is fixedly connected to both sides of the polishing machine body. A first connecting rod is rotatably connected to the end of the first connecting member away from the polishing machine body. A second connecting rod is rotatably connected to one end of the first connecting rod. A second connecting member is rotatably connected to one end of the second connecting rod. A positioning ring is fixed to one end of the second connecting member.

[0007] Preferably, the connector includes a fixing member, which is fixedly connected to the top end of the shaft. The fixing member has grooves on both the left and right sides, and an elastic element is fixed to the inner wall of the groove. A limit block is fixed to one end of the elastic element.

[0008] Preferably, a groove is provided at the center of the bottom end of the first polishing disc, the groove matches the shaft, a tooth groove is provided at the top of the groove, and a tooth block is provided at the top of the shaft, the tooth block matches the tooth groove.

[0009] Preferably, the top of the groove of the first polishing disc is provided with a slot, which matches the limiting block.

[0010] Preferably, an arc-shaped block is fixed to the top of the groove of the first polishing disc, and an arc-shaped groove is opened at the top of the fixing member, the arc-shaped groove matching the arc-shaped block.

[0011] Preferably, the first polishing disc is a wool polishing disc, used for coarse polishing, and the second polishing disc is a sponge polishing disc or a velvet polishing disc, used for fine polishing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Integrated Rough and Fine Polishing Operation: This device features a detachable linkage design between the first and second polishing discs, allowing for quick switching from rough polishing to fine polishing mode without the need to replace the entire machine or use additional disassembly tools. A four-bar linkage mechanism consisting of the first connector, first connecting rod, second connecting rod, and second connector allows for flexible adjustment of the second polishing disc's position, ensuring it is precisely positioned directly below the first polishing disc. Combined with the locking structure of the limiting block and elastic element, this ensures stable transmission after the dual discs are installed, significantly improving polishing efficiency and reducing process changeover time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Detailed front view of the overall structure;

[0016] Figure 3 for Figure 1 Side view of the overall structure;

[0017] Figure 4 for Figure 1 Side view of the overall structure.

[0018] In the figure: 1. Polishing machine body, 2. First polishing disc, 3. Disc carrier, 4. First connecting piece, 5. First connecting rod, 6. Second connecting rod, 7. Second connecting piece, 8. Positioning ring, 9. Ball bearing, 10. Shaft, 11. Second polishing disc, 12. Fixing piece, 13. Elastic element, 14. Limiting block. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution for a paint polishing device for car care: it includes a polishing body 1 and a first polishing disc 2. The polishing body 1 is the power source and support structure of the entire device, providing power for the rotation of the first polishing disc 2 and the second polishing disc 11. A carrier plate 3 is fixed at the top of the polishing body 1. The carrier plate 3 mainly serves to support the second polishing disc 11. Both sides of the polishing body 1 are rotatably connected to a connecting rod assembly, which can drive the second polishing disc 11 to rotate.

[0021] The linkage assembly includes a first connector 4, which is fixedly connected to both sides of the polishing machine body 1. The first connector 4 serves as the connection point between the linkage assembly and the polishing machine body 1, providing support and rotation for the linkage assembly. The end of the first connector 4 away from the polishing machine body 1 is rotatably connected to a first connecting rod 5, and the end of the first connecting rod 5 is rotatably connected to a second connecting rod 6. The first connecting rod 5 and the second connecting rod 6 cooperate with each other through a rotatable connection to form a movable linkage structure, which allows for quick installation when the second polishing disc 11 is needed. The end of the second connecting rod 6 is rotatably connected to a second connector 7, which transmits the movement of the linkage assembly to the positioning ring 8, thereby driving the second polishing disc 11 to move.

[0022] One end of the second connector 7 is fixed with a positioning ring 8. The positioning ring 8 is connected to the connecting rod assembly through the second connector 7. A ball bearing 9 is fitted inside the positioning ring 8, providing a rotational support structure for the shaft 10. The ball bearing 9 is fitted to the inner wall of the positioning ring 8. When the shaft 10 rotates, the ball bearing 9 can reduce the friction between the shaft 10 and the positioning ring 8 and limit the vertical displacement of the shaft 10.

[0023] A shaft 10 is rotatably connected to the inner wall of the positioning ring 8. The shaft 10 rotates on the inner wall of the positioning ring 8, transmitting the power of the first polishing disc 2 to the second polishing disc 11, thereby driving the second polishing disc 11 to rotate. A toothed block is provided at the top of the shaft 10, which matches the toothed groove at the top of the groove of the first polishing disc 2. The second polishing disc 11 is fixed to one end of the shaft 10. The second polishing disc 11 rotates with the rotation of the shaft 10. Driven by the connecting rod assembly, it can be quickly installed and disassembled. The first polishing disc 2 is used for rough polishing, and the second polishing disc 11 is used for fine polishing.

[0024] A connector is fixed to the end of the shaft 10 away from the second polishing disc 11. The connector is used to rotate the second polishing disc 11 to the bottom of the first polishing disc 2. The connector includes a fixing member 12, which is fixedly connected to the top of the shaft 10. The fixing member 12 has grooves on both sides. An elastic element 13 is fixed to the inner wall of the groove. When the shaft 10 is inserted into the groove at the bottom of the first polishing disc 2, the elastic element 13 is compressed and generates elastic force. A limiting block 14 is fixed to one end of the elastic element 13. When the shaft 10 is inserted into the groove of the first polishing disc 2, the limiting block 14 will be inserted into the slot at the top of the groove of the first polishing disc 2 under the action of elasticity, so as to achieve connection and fixation. An arc-shaped groove is opened at the top of the fixing member 12. The arc-shaped groove matches the arc-shaped block at the top of the groove of the first polishing disc 10 to achieve the function of fixing the shaft 10.

[0025] Working Principle: When using a car paint polishing device, the polishing body 1 must first be started. The polishing body 1 will drive the first polishing disc 2 to rotate, allowing for rough polishing of the car paint surface. After the rough polishing is complete, the polishing body 1 is turned off, stopping the first polishing disc 2 from rotating. The second polishing disc 11 is then removed from the tray holder 3. Through the coordinated rotation of the first connecting member 4, the first connecting rod 5, the second connecting rod 6, and the second connecting member 7, the second polishing disc 11 is positioned on the first polishing disc 2. Directly below, the second polishing disc 11 is pushed upwards along with the fixing member 12. During this pushing, the limiting block 14 inside the fixing member 12 contacts the groove of the first polishing disc 2. At the same time, the limiting block 14 causes the elastic element 13 to retract inwards. After the second polishing disc 11 and the fixing member 12 are pushed into the designated position, the elastic element 13 releases its elastic force, thereby causing the limiting block 14 to move outwards and enter the slot. The arc-shaped block inside the groove of the first polishing disc 2 also enters the arc-shaped groove at the top of the fixing member 12 for engagement. Thus, the installation of the second polishing disc 11 is completed.

[0026] At this point, the polishing machine body 1 is started again. The polishing machine body 1 drives the first polishing disc 2 to rotate. The first polishing disc 2 drives the second polishing disc 11 to rotate through the toothed blocks in its groove. At this time, the car paint surface can be finely polished and cared for through the second polishing disc 11.

[0027] 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 paint polishing device for automotive care, comprising a polishing body (1) and a first polishing disc (2), characterized in that, The bottom end of the polishing machine body (1) is rotatably connected to a first polishing disc (2), the top end of the polishing machine body (1) is fixed with a carrier plate seat (3), both sides of the polishing machine body (1) are rotatably connected to a connecting rod assembly, one end of the connecting rod assembly is fixed with a positioning ring (8), the inner wall of the positioning ring (8) is fitted with a ball (9), the inner wall of the positioning ring (8) is rotatably connected to a shaft (10), one end of the shaft (10) is fixed with a second polishing disc (11), and the end of the shaft (10) away from the second polishing disc (11) is fixed with a connector.

2. The paint polishing device for automobile care according to claim 1, characterized in that, The linkage assembly includes a first connector (4), which is fixedly connected to both sides of the polishing machine body (1). The end of the first connector (4) away from the polishing machine body (1) is rotatably connected to a first connecting rod (5). The end of the first connecting rod (5) is rotatably connected to a second connecting rod (6). The end of the second connecting rod (6) is rotatably connected to a second connector (7). The end of the second connector (7) is fixed with a positioning ring (8).

3. The paint polishing device for automobile care according to claim 1, characterized in that, The connector includes a fixing member (12), which is fixedly connected to the top end of the shaft (10). The fixing member (12) has grooves on both the left and right sides, and an elastic element (13) is fixed to the inner wall of the groove. A limit block (14) is fixed to one end of the elastic element (13).

4. The paint polishing device for automobile care according to claim 1, characterized in that, The first polishing disc (2) has a groove at the center of its bottom end, which matches the shaft (10). The top of the groove has a toothed groove, and the top of the shaft (10) has a toothed block that matches the toothed groove.

5. The paint polishing device for automobile care according to claim 1, characterized in that, The first polishing disc (2) has a slot at the top of its groove, which matches the limiting block (14).

6. The paint polishing device for automobile care according to claim 1, characterized in that, An arc-shaped block is fixed to the top of the groove of the first polishing disc (2), and an arc-shaped groove is opened at the top of the fixing member (12), which matches the arc-shaped block.

7. The paint polishing device for automobile care according to claim 1, characterized in that, The first polishing disc (2) is a wool polishing disc, used for coarse polishing, and the second polishing disc (11) is a sponge polishing disc or a velvet polishing disc, used for fine polishing.

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