Polishing and derusting tool for rusting of inner cavity of supporting rod

Abstract

The utility model relates to the field of supporting rod inner cavity rust removal, in particular to a supporting rod inner cavity rust polishing and rust removing tool which comprises a polishing plate, one end of the polishing plate is connected with a handheld rod, one side of the polishing plate is connected with a plurality of bolts, and fixing nuts are installed on the outer portions of the bolts in a threaded mode. The polishing plate with the size matched with the inner diameter of the inner cavity of the supporting rod is adopted, and the outer portion of the polishing plate is coated with the detachable polishing abrasive paper, so that after the polishing plate enters the inner cavity of the supporting rod, the position to be polished and derusted can be precisely derusted and polished through the polishing abrasive paper. And the grinding plate is manually operated to move, the controllability is better controlled, and the inner cavity wall of the supporting rod is not prone to being damaged. And the polishing abrasive paper can be replaced according to actual requirements in use, the polishing effect of the polishing abrasive paper is good, and the use cost is low.

Description

Technical Field

[0001] This utility model relates to a rust removal tool, specifically a tool for grinding and removing rust from the inner cavity of a support rod, belonging to the field of rust removal from the inner cavity of a support rod. Background Technology

[0002] The support rod is used to mount the speed sensor, which is installed inside the rod's inner cavity. Frequent disassembly and reassembly of the speed sensor has caused wear and tear on the surface plating, leading to corrosion within the cavity. To effectively ensure product quality and the reliability of the speed sensor assembly, the inner cavity needs to be ground to remove rust and undergo resurfacing. Currently, there are no suitable tools for grinding and removing rust from the support rod's inner cavity. The length of the support rod's inner cavity is typically 600mm, and the diameter is usually 30-40mm. Furthermore, the location of rust spots within the inner cavity varies, usually requiring only light grinding for rust removal. Before grinding, the location of rust spots can be identified by shining a light into the inner cavity. Due to the long length of the inner cavity, there is no suitable electric grinding tool. Using an electric grinding tool makes it difficult to control the grinding force, easily leading to over-grinding and significant damage to the inner cavity. Moreover, electric grinding tools are difficult to adapt to inner cavities of different diameters, resulting in significant limitations and high operating costs. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides a tooling for grinding and removing rust from the inner cavity of a support rod.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A tooling for grinding and removing rust from the inner cavity of a support rod includes a grinding plate, one end of which is connected to a hand handle, and a plurality of bolts are connected to one side of the grinding plate, with fixing nuts installed on the external threads of the bolts.

[0006] Optionally, the grinding plate is arranged in an arc shape.

[0007] Optionally, the fixing nut is installed on the inner side of the arc of the grinding plate.

[0008] Optionally, one end of the bolt extends from the outer arc of the grinding plate to the inner arc, and the bolt is welded to the grinding plate for fixation.

[0009] Optionally, one end of the bolt is embedded on the outer side of the arc of the grinding plate.

[0010] The beneficial effects of this utility model are:

[0011] This fixture uses a grinding plate whose size is matched to the inner diameter of the support rod's cavity, and a removable sandpaper is installed on the outside of the grinding plate. This allows the grinding plate to be inserted into the support rod's cavity, and the sandpaper can precisely target the areas requiring rust removal. The grinding plate is manually operated, offering better control and minimizing damage to the support rod's inner wall. The sandpaper can be replaced as needed, providing good polishing results at a low cost. The length of the handheld lever can be adjusted to suit different requirements; it can be selected to match the support rod's length, exceeding 600mm. This allows for precise control of the grinding plate's position within the support rod's cavity, adapting to various polishing positions. This fixture is simple to operate, highly practical, and offers significant economic benefits. Attached Figure Description

[0012] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This utility model Figure 1 The left view.

[0015] Figure 3 This is a schematic diagram of the installation structure of the grinding plate and support rod of this utility model.

[0016] Figure 4 This is a schematic diagram of the installation structure of the grinding plate and sandpaper of this utility model.

[0017] In the picture: 1. Bolt; 2. Grinding plate; 3. Fixing nut; 4. Hand handle; 5. Sandpaper; 6. Support rod. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please see Figure 1-4 As shown, a tooling for grinding and removing rust from the inner cavity of a support rod includes a grinding plate 2. One end of the grinding plate 2 is connected to a hand handle 4, and a plurality of bolts 1 are connected to one side of the grinding plate 2. The external threads of the bolts 1 are fitted with fixing nuts 3. The grinding plate 2 is arc-shaped.

[0020] The arc-shaped grinding plate 2 is sized to match the inner diameter of the support rod 6 to be ground, allowing the outer arc of the grinding plate 2 to contact the inner wall of the support rod 6. When the inner cavity of the support rod 6 needs to be ground and rust removed, the sandpaper 5 to be used is wrapped around the outside of the grinding plate 2, with the sanding surface of the sandpaper 5 facing away from the grinding plate 2. The installation method is as follows: Figure 4 As shown, after the sandpaper 5 is wrapped around the outer wall of the sanding plate 2, the excess portion is folded over from the top and bottom sides of the sanding plate 2 towards the inner arc of the sanding plate 2, ensuring that the top and bottom edges of the sandpaper 5 contact the sides of the fixing nut 3. Then, the fixing nut 3 is tightened, moving towards the sanding plate 2. The end face of the fixing nut 3 presses against the folded top and bottom sides of the sandpaper 5, ultimately abutting against the inner arc of the sanding plate 2, thus fixing the sandpaper 5 to the sanding plate 2 and preventing it from falling off during subsequent sanding. Because there are multiple fixing nuts 3 on the inner arc of the sanding plate 2, the multiple fixing nuts 3 can effectively fix the sandpaper 5.

[0021] Specifically, the fixing nut 3 is installed on the inner side of the arc of the grinding plate 2. The fixing nut 3 can press and fix the side of the sandpaper 5 used for grinding on the inner side of the arc, so that the sandpaper 5 is not easy to fall off or shake during use, thus maintaining the accuracy of subsequent grinding.

[0022] Specifically, one end of bolt 1 extends from the outer side of the arc of grinding plate 2 to the inner side of the arc, and bolt 1 is welded and fixed to grinding plate 2. One end of bolt 1 is embedded on the outer side of the arc of grinding plate 2.

[0023] The welded connection between bolt 1 and grinding plate 2 ensures a more secure fit, reducing the likelihood of them falling off during use. This, in turn, allows for stable installation and use of the fixing nut 3 and sandpaper 5. The outer arc of grinding plate 2 forms the grinding end face. During subsequent grinding, sandpaper 5 needs to be wrapped around and installed on the outside. This embedded installation prevents any protrusions on the grinding end face, ensuring a smooth installation of sandpaper 5. When installing sandpaper 5, the grinding end face should remain smooth and wrinkle-free, allowing for even contact with the inner wall of the support rod 6 during grinding. The dimensions of grinding plate 2 can be customized according to the actual diameter of the inner cavity, ensuring thorough grinding and rust removal during use and maintaining high efficiency.

[0024] When the inner wall of the support rod 6 needs grinding, the inner cavity is a cylindrical cavity. Select a grinding plate 2 that matches the diameter of the inner cavity of the support rod 6, and cover the outside of the grinding plate 2 with sandpaper 5. Then, hold the handle 4 and insert the grinding plate 2 into the inner cavity of the support rod 6. After the grinding plate 2 is moved to the position to be ground, rotate the handle 4 or push and pull the handle 4 back and forth so that the sandpaper 5 on the outside of the grinding plate 2 can fully grind and remove rust from the rusted areas of the inner cavity. When the sandpaper 5 needs to be replaced, loosen the fixing nut 3, remove the old sandpaper 5, and replace it with a new sandpaper 5. The grit and size of the sandpaper 5 can be freely adjusted according to actual needs. The adjustment is simple and quick, and the operating cost is low.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tooling for grinding and removing rust from the inner cavity of a support rod, characterized in that, It includes a grinding plate (2), one end of which is connected to a hand handle (4), and a plurality of bolts (1) are connected to one side of the grinding plate (2), with a fixing nut (3) installed on the external thread of the bolts (1).

2. The tooling for grinding and removing rust from the inner cavity of a support rod according to claim 1, characterized in that, The grinding plate (2) is arranged in an arc shape.

3. The tooling for grinding and removing rust from the inner cavity of a support rod according to claim 2, characterized in that, The fixing nut (3) is installed on the inner side of the arc of the grinding plate (2).

4. The tooling for grinding and removing rust from the inner cavity of a support rod according to claim 3, characterized in that, One end of the bolt (1) extends from the outer arc of the grinding plate (2) to the inner arc, and the bolt (1) is welded and fixed to the grinding plate (2).

5. The tooling for grinding and removing rust from the inner cavity of a support rod according to claim 4, characterized in that, One end of the bolt (1) is embedded on the outer side of the arc of the grinding plate (2).

Images