Bolt ash and rust removal device
By designing a sliding connection cleaning brush and adjustment mechanism suitable for bolts of different diameters, the problem that existing devices cannot adapt to bolts of various sizes has been solved, achieving efficient and low-cost bolt cleaning results.
Patent Information
- Application Number
- CN202520447999.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing bolt rust removal devices are not suitable for bolts of various diameters, and the internal brush wears down after prolonged use, resulting in reduced cleaning quality.
A bolt cleaning and rust removal device was designed, which adopts a sliding connection of cleaning brush and adjustment mechanism. The cleaning brush can be adjusted by adjusting spring or adjusting screw to adapt to bolts of different diameters, and the cleaning brush is driven by a drive motor to rotate. Combined with limit seat and chip discharge port, stable connection and cleaning effect are achieved.
It enables efficient cleaning of bolts of different diameters, avoids brush bristle wear, improves cleaning quality and tool applicability, and reduces maintenance costs.
Smart Images

Figure CN223889701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt maintenance technology, specifically a bolt cleaning and rust removal device. Background Technology
[0002] For a long time, bolts on various facilities have been exposed to the outside world for a long time, and they are quickly oxidized and rusted due to wind and rain. This has caused many inconveniences to the maintenance and repair of various facilities. In particular, after rusting, it is difficult to disassemble, which is time-consuming and laborious. Therefore, it is even more necessary to carry out regular rust removal and maintenance on bolts.
[0003] Existing rust removal devices, such as the railway sleeper bolt rust removal device in application number CN201510627480.9, include an outer sleeve and several inner brushes. The outer sleeve has through holes for accommodating bolts, and the inner brushes are located on the side walls of the outer sleeve with their brush strips extending into the through holes. Rotation of the outer sleeve causes the inner brushes to rotate around the bolts and brush them. This technology can reduce labor intensity and improve the speed and quality of cleaning railway sleeper bolts. However, existing bolt rust removal devices are not suitable for bolts of various diameters, and their cleaning effect is poor for bolts larger or smaller than the inner brush diameter. Furthermore, the inner brushes wear down after prolonged use, reducing the cleaning quality. Therefore, providing a bolt cleaning and rust removal device that is simple in structure, easy to operate, has good rust removal effect, and is applicable to bolts of various sizes is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bolt cleaning and rust removal device that is simple in structure, easy to operate, has a good rust removal effect, and can be applied to bolts of various sizes.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A bolt cleaning and rust removal device includes an outer sleeve, a connecting seat detachably connected to the top of the outer sleeve, and a connecting sleeve detachably connected to the lower end of the outer sleeve. The output shaft of a drive motor is connected to the outer sleeve via the connecting seat, and the drive motor output shaft, the outer sleeve, and the connecting sleeve are coaxially arranged. A plurality of cleaning brushes for cleaning bolts are arranged circumferentially at intervals on the inner side of the connecting sleeve. A sliding rod is provided on the side of each cleaning brush away from the axis of the connecting sleeve, and the cleaning brush is slidably connected to the connecting sleeve via the sliding rod. A limiting seat is provided on the outer side of the connecting sleeve for each cleaning brush, and the end of the sliding rod away from the brush head extends through the connecting sleeve and connects to the limiting seat. An adjustment mechanism is provided for each cleaning brush, which allows the cleaning brush to press tightly against the bolt to be cleaned.
[0007] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:
[0008] By adjusting the various cleaning brushes that are slidably connected within the connecting sleeve, the cleaning brushes can be adapted to bolts of different diameters. During the cleaning process, they remain firmly pressed against the bolts, ensuring cleaning effectiveness and improving tool applicability while avoiding the problem of brush bristle wear and reduced cleaning quality after long-term use.
[0009] As a preferred embodiment, a further technical solution of this utility model is:
[0010] Preferably, the adjusting mechanism includes an adjusting spring, one end of which abuts against the cleaning brush and the other end against the inner wall of the connecting sleeve. The adjusting spring is always in a compressed state, so that the bolt to be cleaned is always located between several cleaning brushes. By adjusting the spring, several cleaning brushes can adapt to bolts of different diameters. The adjusting spring is always in a compressed state, so that the cleaning brushes are always tightly pressed against the bolt to be cleaned during the cleaning process, ensuring the cleaning quality.
[0011] Preferably, the adjusting mechanism includes an adjusting screw threaded onto the limiting seat. One end of the adjusting screw is rotatably connected to the connecting sleeve, and the other end is provided with a rotating handle. By rotating the adjusting screw with the rotating handle, the position of the limiting seat on the adjusting screw is adjusted, thereby driving the slide bar to slide outward or inward, thereby adjusting the position of the cleaning brush and enabling the cleaning brush to adapt to bolts of different diameters to be cleaned.
[0012] Preferably, a connecting key is provided at the lower end of the drive motor output shaft; a connecting groove is provided on the connecting seat corresponding to the output shaft and the connecting key, and an expansion groove is provided on one side of the top of the connecting groove. A stop block is connected in the expansion groove by a return spring; this ensures a stable connection between the drive motor output shaft and the outer sleeve body, and makes connection and disassembly simple and convenient.
[0013] Preferably, the cleaning brush includes a brush base and a brush head bolted and fixed on the brush base, with a slide rod fixed to the brush base; this facilitates brush head replacement and reduces device maintenance costs.
[0014] Preferably, the outer sleeve body has several chip discharge ports arranged circumferentially on its side wall; this facilitates the removal of iron filings, impurities, etc., from inside the outer sleeve body. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the bolt cleaning and rust removal device in use according to an embodiment of this utility model;
[0016] Figure 2 This is an exploded structural diagram of the bolt cleaning and rust removal device in an embodiment of this utility model;
[0017] Figure 3 yes Figure 2 Enlarged structural diagram at point A;
[0018] Figure 4This is a schematic diagram of the connection structure of the stop block in an embodiment of this utility model;
[0019] Figure 5 This is a schematic diagram of the connection structure between the cleaning brush and the adjustment mechanism in an embodiment of this utility model;
[0020] Figure 6 This is a schematic diagram of another connection structure between the cleaning brush and the adjustment mechanism in an embodiment of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Outer sleeve; 101. Chip discharge port; 2. Connecting seat; 201. Connecting groove; 202. Expansion groove; 3. Connecting sleeve; 4. Drive motor; 5. Bolt; 6. Cleaning brush; 601. Brush seat; 602. Brush head; 7. Slide rod; 8. Limit seat; 9. Adjusting spring; 10. Adjusting screw; 11. Rotating handle; 12. Stop block; 13. Return spring. Detailed Implementation
[0022] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0023] like Figure 1 , Figure 2 As shown, this embodiment provides a bolt cleaning and rust removal device, including an outer sleeve 1, a connecting seat 2 bolted to the top of the outer sleeve 1, and a connecting sleeve 3 bolted to the lower end of the outer sleeve 1; the output shaft of the drive motor 4 is connected to the outer sleeve 1 through the connecting seat 2, and the output shaft of the drive motor 4, the outer sleeve 1, and the connecting sleeve 3 are coaxially arranged; a plurality of cleaning brushes 6 for cleaning bolts 5 are arranged circumferentially at intervals on the inner side of the connecting sleeve 3, and a sliding rod 7 is provided on the side of the cleaning brush 6 away from the axis of the connecting sleeve 3, and the cleaning brush 6 is slidably connected to the connecting sleeve 3 through the sliding rod 7; a limiting seat 8 is provided on the outer side of the connecting sleeve 3 for each cleaning brush 6, and the end of the sliding rod 7 away from the brush head 602 passes through the connecting sleeve 3 and is connected to the limiting seat 8; an adjustment mechanism is provided for each cleaning brush 6, and the cleaning brush 6 can be pressed tightly against the bolt 5 to be cleaned by the adjustment mechanism. In this embodiment, two cleaning brushes 6 are provided, which are symmetrically arranged about the axis of the connecting sleeve 3. Two limit seats 8 are provided accordingly. Each cleaning brush 6 is provided with two sliding rods 7. The overall structure is simpler and easier to assemble and maintain. The two sliding rods 7 make the cleaning brush 6 more stable when sliding.
[0024] In use, place the bolt 5 between several cleaning brushes 6, connect the drive motor 4 to the connecting sleeve 3, start the drive motor 4, and the cleaning brushes 6 will rotate to clean the bolt 5 and remove rust. When the bolt 5 is long, manually move the drive motor 4 up and down to move the device up and down to ensure the overall cleaning effect of the bolt 5.
[0025] The output shaft of the drive motor 4 can be connected to the connecting seat 2 via a flange connection plate; since installation and disassembly are inconvenient when connected via the flange connection plate, this embodiment provides another connection method, specifically, as follows: Figures 1 to 4 A connecting key is provided at the lower end of the output shaft of the drive motor 4; a connecting groove 201 is provided on the connecting seat 2 corresponding to the output shaft and the connecting key, and an expansion groove 202 is provided on one side of the top of the connecting groove 201. A stop block 12 is connected in the expansion groove 202 by a return spring 13, and the upper end of the stop block 12 protrudes from the connecting seat 2; when inserting the output shaft of the drive motor 4 into the connecting groove 201, the stop block 12 is manually retracted into the expansion groove 202 through the protruding part, and the output shaft and the connecting key are inserted into the connecting groove 201. After insertion, the stop block 12 is released, and the stop block 12 protrudes into the connecting groove 201, pressing tightly against the output shaft, and limiting the connecting key, ensuring that the output shaft of the drive motor 4 is stably connected to the connecting seat 2 during the up and down movement of the hand-held drive motor 4 and the cleaning of the bolt 5; after all the cleaning work is completed, the stop block 12 is manually retracted into the expansion groove 202, and the output shaft of the drive motor 4 is slid out of the connecting groove 201.
[0026] like Figure 5 The adjustment mechanism includes an adjustment spring 9. One end of the adjustment spring 9 abuts against the cleaning brush 6, and the other end abuts against the inner wall of the connecting sleeve 3. The adjustment spring 9 is always in a compressed state. When in use, first manually insert the bolt 5 to be cleaned into the space between several cleaning brushes 6. By adjusting the elasticity of the spring 9, the several cleaning brushes 6 are always tightly pressed against the outside of the bolt 5 to be cleaned, thus ensuring the cleaning quality.
[0027] like Figure 6 The adjustment mechanism includes an adjustment screw 10 threadedly connected to the limit seat 8. One end of the adjustment screw 10 is rotatably connected to the connecting sleeve 3 near the connecting sleeve 3, and the other end is provided with a rotating handle 11. By rotating the adjustment screw 10 through the rotating handle 11, the position of the limit seat 8 on the adjustment screw 10 is adjusted, thereby driving the slide rod 7 to slide outward or inward, thereby adjusting the position of the cleaning brush 6, so that the cleaning brush 6 can adapt to bolts 5 of different diameters to be cleaned.
[0028] When the brush head 602 wears down to a certain extent, in order to reduce the maintenance cost of the device, the cleaning brush 6 includes a brush base 601 and a brush head 602 bolted and fixed on the brush base 601, and the slide rod 7 is fixedly connected to the brush base 601.
[0029] like Figure 2 The outer sleeve 1 has several chip discharge ports 101 arranged circumferentially on its side wall to facilitate the discharge of iron filings, impurities, etc. from inside the outer sleeve 1.
[0030] After cleaning and removing rust from bolt 5 using this device, rust-preventive oil can be applied to the brush head 602 of the cleaning brush 6. This device can also be used to apply rust-preventive oil to bolt 5 to achieve comprehensive maintenance of bolt 5.
[0031] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.
Claims
1. A bolt cleaning and rust removal device, comprising an outer sleeve (1), characterized in that: The top of the outer sleeve (1) is detachably connected to a connecting seat (2), and the bottom of the outer sleeve (1) is detachably connected to a connecting sleeve (3); after the output shaft of the drive motor (4) is connected to the outer sleeve (1) through the connecting seat (2), the output shaft of the drive motor (4), the outer sleeve (1), and the connecting sleeve (3) are coaxially arranged. The inner side of the connecting sleeve (3) is provided with a number of cleaning brushes (6) for cleaning bolts (5) at intervals. A sliding rod (7) is provided on the side of the cleaning brush (6) away from the axis of the connecting sleeve (3). The cleaning brush (6) is slidably connected to the connecting sleeve (3) through the sliding rod (7). Located on the outside of the connecting sleeve (3), a limiting seat (8) is provided for each cleaning brush (6), and the end of the slide rod (7) away from the brush head (602) passes through the connecting sleeve (3) and is connected to the limiting seat (8); Each cleaning brush (6) is provided with an adjustment mechanism, which allows the cleaning brush (6) to be pressed tightly against the screw to be cleaned.
2. The bolt cleaning and rust removal device according to claim 1, characterized in that: The adjustment mechanism includes an adjustment spring (9), one end of which abuts against the cleaning brush (6) and the other end abuts against the inner wall of the connecting sleeve (3). The adjustment spring (9) is always in a compressed state.
3. The bolt cleaning and rust removal device according to claim 1, characterized in that: The adjustment mechanism includes an adjustment screw (10) threadedly connected to the limit seat (8). The adjustment screw (10) is rotatably connected to the connecting sleeve (3) at one end near the connecting sleeve (3), and a rotating handle (11) is provided at the other end.
4. The bolt cleaning and rust removal device according to claim 1, characterized in that: A connecting key is provided at the lower end of the output shaft of the drive motor (4); a connecting groove (201) is provided on the connecting seat (2) corresponding to the output shaft and the connecting key, and an expansion groove (202) is provided on one side of the top of the connecting groove (201). A stop block (12) is connected in the expansion groove (202) by a reset spring (13).
5. The bolt cleaning and rust removal device according to claim 1, characterized in that: The cleaning brush (6) includes a brush holder (601) and a brush head (602) bolted and fixed on the brush holder (601), and a slide rod (7) is fixedly connected to the brush holder (601).
6. The bolt cleaning and rust removal device according to claim 1, characterized in that: The outer sleeve (1) has several chip discharge ports (101) arranged circumferentially on its side wall.
Citation Information
Patent Citations
Railroad sleeper bolt rust removal device
CN105149259A