Oil cylinder maintenance device with built-in cleaning brush

By incorporating a built-in cleaning brush and filter assembly into the hydraulic cylinder, the problem of dirt and impurities accumulating inside the cylinder is solved, achieving efficient cleaning and filtration without disassembly, thus improving the working efficiency and lifespan of the hydraulic cylinder.

CN223894609UActive Publication Date: 2026-02-10CHANGZHOU AOSAILIN HYDRAULIC & PNEUMATIC COMPONENTS CO LTD
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Patent Information

Application Number
CN202520230978.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-02-10
Estimated Expiration
2035-02-13

AI Technical Summary

Technical Problem

During use, the accumulation of dirt, metal shavings and other impurities inside existing hydraulic cylinders leads to decreased work efficiency and equipment failure. Existing cleaning methods require disassembling the hydraulic cylinders and may introduce new sources of pollution.

Method used

It features a built-in patented hydraulic cylinder maintenance device with a built-in cleaning brush and filter assembly for cleaning the inner wall of the hydraulic cylinder and filtering the oil without disassembling the cylinder.

Benefits of technology

It achieves efficient cleaning of the inner wall of the hydraulic cylinder, removes dirt and impurities, improves the working efficiency and smoothness of the hydraulic cylinder, and extends the service life of the hydraulic cylinder.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223894609U_ABST
Patent Text Reader

Abstract

The utility model discloses an oil cylinder maintenance device with a built-in cleaning brush, which comprises an oil cylinder body, one end of the oil cylinder body is provided with a first processing component, the outside of the oil cylinder body is provided with an oil inlet and an oil outlet from bottom to top, one end of the oil inlet and one end of the oil outlet are connected with a second processing component, and the second processing component is provided with a cleaning brush. Through the arrangement of the first processing assembly, the inner wall of the oil cylinder can be effectively cleaned under the condition that the oil cylinder is not disassembled, the time-consuming and labor-consuming disassembling process in an existing cleaning method is avoided, the maintenance efficiency is remarkably improved, the cleaning brush and the cleaning scraper make close contact with the inner wall of the oil cylinder, and the cleaning efficiency is improved. Accumulated dirt, metal chips and other impurities can be effectively removed, it is ensured that the interior of the oil cylinder is clean, the working efficiency and action smoothness of the oil cylinder are improved, in addition, impurities in oil can be further filtered through a filter screen and a one-way valve in the second treatment assembly, pollutants are prevented from entering the oil cylinder, and the service life of the oil cylinder is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to oil cylinder technical field, specifically, relate to an oil cylinder maintenance device with built-in cleaning brush. BACKGROUND

[0002] Oil cylinder is the execution element in hydraulic system, is used for converting hydraulic energy into mechanical energy, realizes linear motion or reciprocating motion, it is mainly composed of cylinder, piston, piston rod, sealing element and end cover and other components.

[0003] In industrial equipment and mechanical system, oil cylinder as key assembly is widely used in various actuating mechanisms and power transmission system, however along with the increase of use time, the oil cylinder inside will inevitably accumulate dirt, metal chips and other impurities, these pollutants can affect the working efficiency of oil cylinder, cause action not smooth, even cause equipment failure, the existing cleaning method usually needs to disassemble oil cylinder, this not only time -consuming and labor -intensive, and in the reassembly process can also introduce new pollution source. SUMMARY

[0004] In view of the problems in the prior art, the utility model provides an oil cylinder maintenance device with built-in cleaning brush to overcome the above technical problems existing in the prior art.

[0005] Therefore, the utility model adopts the specific technical scheme as follows:

[0006] An oil cylinder maintenance device with built-in cleaning brush, including oil cylinder body, the one end of oil cylinder body is provided with first processing assembly, the outside of oil cylinder body is equipped with oil inlet and oil outlet from bottom to top, the one end of oil inlet is connected with second processing assembly, the first processing assembly includes multiple processing grooves, the processing grooves are symmetrically set up in the inner wall of oil cylinder body, the upper end of oil cylinder body is fixedly provided with motor through bolt, the output shaft of motor is provided with threaded rod through shaft coupling.

[0007] Further, in order to better guarantee the cleaning effect of oil cylinder inner wall and moving end, one end of threaded rod extends to the inside of one of processing grooves, and is connected with the inside of processing groove through bearing, the inside of another processing groove is provided with guide rod.

[0008] Further, in order to better guarantee cleaning effect, the threaded rod and the guide rod are connected with the adjusting plate, the outer wall and the inner wall of the adjusting plate are provided with cleaning brush and cleaning scraper.

[0009] Further, in order to better guarantee effective removal of accumulated dirt, metal chips and other impurities, the cleaning brush and the cleaning scraper are in contact with the inner wall of the oil cylinder body.

[0010] Further, in order to better guarantee the buffering effect of the moving end of the oil cylinder, the bottom end of the adjusting plate is provided with a plurality of telescopic rods, the periphery of the telescopic rod is provided with a spring, and the spring and one end of the telescopic rod are provided with a buffer block.

[0011] Further, in order to better guarantee the filtering of the entering and output oil, the second processing assembly comprises a shunt pipe, one end of the shunt pipe is connected to one end of the oil inlet and the oil outlet respectively, a filter cartridge is connected to the shunt pipe, and a filter screen is arranged in the filter cartridge.

[0012] Further, in order to better avoid the reverse flow of the entering and output oil, a one-way valve is arranged on the shunt pipe, and the shunt pipe is in communication with the oil inlet and the oil outlet.

[0013] The beneficial effects of the utility model are that: through setting first processing assembly, can effectively clean the oil cylinder inner wall without disassembling oil cylinder, avoid the time-consuming and laborious disassembly process in prior art cleaning method, significantly improve the maintenance efficiency, through the cleaning brush and cleaning scraper and oil cylinder inner wall close contact, can effectively remove accumulated dirt, metal chips and other impurities, ensure the oil cylinder internal cleaning, improve the working efficiency and action smoothness of oil cylinder, in addition, through setting filter screen and one-way valve in second processing assembly can further filter the impurities in oil, prevent the pollutants from entering the oil cylinder, prolong the service life of the oil cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0015] Figure 1 It is a structure diagram of an oil cylinder maintenance device with built-in cleaning brush according to the utility model embodiment;

[0016] Figure 2 It is a structure side sectional view of an oil cylinder maintenance device with built-in cleaning brush according to the utility model embodiment;

[0017] Figure 3 It is a first processing assembly structure decomposition of an oil cylinder maintenance device with built-in cleaning brush according to the utility model embodiment; Figure 1 ;

[0018] Figure 4 It is a first processing assembly structure decomposition of an oil cylinder maintenance device with built-in cleaning brush according to the utility model embodiment;Figure 2 ;

[0019] Figure 5 yes Figure 4 Enlarged view of point a in the middle;

[0020] Figure 6 yes Figure 4 Enlarged view at point b in the middle;

[0021] Figure 7 This is a structural diagram of the second processing component of a hydraulic cylinder maintenance device with a built-in cleaning brush according to an embodiment of the present utility model;

[0022] Figure 8 yes Figure 7 Enlarged view of point c in the middle.

[0023] In the picture:

[0024] 1. Cylinder body; 2. First processing component; 201. Processing tank; 202. Motor; 203. Threaded rod; 204. Guide rod; 205. Adjusting plate; 206. Cleaning brush; 207. Cleaning scraper; 208. Telescopic rod; 209. Spring; 210. Buffer block; 3. Oil inlet; 4. Oil outlet; 5. Second processing component; 501. Diverter pipe; 502. Filter cartridge; 503. Filter screen; 504. Check valve. Detailed Implementation

[0025] 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.

[0026] Example 1:

[0027] like Figures 1-8 As shown, a hydraulic cylinder maintenance device with a built-in cleaning brush according to an embodiment of the present utility model includes a hydraulic cylinder body 1. The hydraulic cylinder body 1 is an existing conventional hydraulic cylinder (usually composed of a cylinder barrel, piston, piston rod, end cap, seal, guide sleeve, exhaust valve, dust seal, etc.). A first processing component 2 is provided at one end of the hydraulic cylinder body 1 for cleaning the inside of the hydraulic cylinder body 1. The outside of the hydraulic cylinder body 1 is provided with an oil inlet 3 and an oil outlet 4 from bottom to top.

[0028] The first processing component 2 includes two processing slots 201, which are symmetrically opened on the inner wall of the cylinder body 1. A motor 202 is fixedly installed at the upper end of the cylinder body 1 by bolts. In actual use, the motor 202 is electrically connected to an external controller and an external power supply. The output shaft of the motor 202 is provided with a threaded rod 203 through a coupling. The threaded rod 203 is a double-ended screw. One end of the threaded rod 203 extends into the interior of one of the processing slots 201 and is connected to the interior of the processing slot 201 through a bearing. A guide rod 204 is provided inside the other processing slot 201. A concentric adjustment plate 205 is connected to the threaded rod 203 and the guide rod 204 (the adjustment plate 205 can be set to be detachable in actual use for easy replacement). The adjustment plate 205 is threadedly connected to the threaded rod 203 and slidably connected to the guide rod 204.

[0029] The outer and inner walls of the adjusting plate 205 are provided with cleaning brushes 206 and cleaning scrapers 207. The cleaning brushes 206 and cleaning scrapers 207 are in contact with the inner wall of the cylinder body 1 and the outer wall of the piston rod. Eight telescopic rods 208 are fixedly provided at the bottom of the adjusting plate 205. Springs 209 are provided around the telescopic rods 208. Buffer blocks 210 are provided at one end of the springs 209 and the telescopic rods 208. The buffer blocks 210 are made of rubber.

[0030] Example 2:

[0031] like Figures 1-8 As shown, a hydraulic cylinder maintenance device with a built-in cleaning brush according to an embodiment of the present utility model includes a hydraulic cylinder body 1. The hydraulic cylinder body 1 is an existing conventional hydraulic cylinder (usually composed of a cylinder barrel, piston, piston rod, end cap, seal, guide sleeve, exhaust valve, dust seal, etc.). The exterior of the hydraulic cylinder body 1 is provided with an oil inlet 3 and an oil outlet 4 from bottom to top. One end of the oil inlet 3 and the oil outlet 4 is connected to a second processing component 5 for filtering the incoming oil.

[0032] The second processing component 5 includes a diverter pipe 501, which is configured as a three-way pipe. In actual use, the diverter pipe 501 is connected to an external oil inlet pipe and an oil outlet pipe (not shown in detail in the figure). One end of the diverter pipe 501 is connected to one end of the oil inlet 3 and the oil outlet 4, respectively. A filter cylinder 502 is connected to the diverter pipe 501. A filter screen 503 is installed inside the filter cylinder 502. The filter screen 503 has a conventional structure and can be made detachable for easy replacement. A one-way valve 504 is installed on the diverter pipe 501. The one-way valve 504 has a conventional valve body and is used to prevent the oil from flowing backward. The diverter pipe 501 is connected to the oil inlet 3 and the oil outlet 4.

[0033] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0034] In summary, with the help of the above-mentioned technical solution of this utility model, when the piston rod of the cylinder body 1 needs to be cleaned after retracting into the cylinder barrel, the motor 202 is first started. The motor 202 is powered by an external controller and power supply and begins to rotate. The output shaft of the motor 202 drives the threaded rod 203 to rotate through a coupling. Since the threaded rod 203 and the adjusting plate 205 are threadedly connected, the rotation of the threaded rod 203 will drive the adjusting plate 205 to move along the axial direction of the threaded rod 203. Under the drive of the threaded rod 203, the adjusting plate 205 moves along the threaded rod 203 and the guide rod 204. The function of the guide rod 204 is to ensure that the adjusting plate 205 remains stable during the movement and does not rotate. The outer and inner walls of the adjusting plate 205 are provided with cleaning brushes 206 and cleaning scrapers 207. As the adjusting plate 205 moves, the cleaning brushes 206 and cleaning scrapers 207 clean the inner wall of the cylinder body 1 and the piston rod. The cleaning process involves close contact with the outer wall of the cylinder. The cleaning brush 206 is used to remove dirt and impurities from the inner wall of the cylinder and the piston rod. The cleaning scraper 207 is used to scrape off dirt and metal shavings that are difficult to remove. Eight telescopic rods 208 are fixedly installed at the bottom of the adjusting plate 205. Springs 209 are installed around the telescopic rods 208. Buffer blocks 210 are installed at one end of the springs 209 and the telescopic rods 208. The buffer blocks 210 are made of rubber and can provide a buffering effect when the adjusting plate 205 moves, avoiding hard contact between the cleaning components and the inner wall of the cylinder and the piston rod, and reducing wear. When the adjusting plate 205 moves to the other end of the cylinder, the cleaning process is completed. At this time, the dirt, metal shavings and other impurities inside the cylinder have been effectively removed, and the inside of the cylinder is restored to a clean state. Then, the motor 202 is rotated in reverse by the external controller. Then the rotation of the threaded rod 203 drives the adjusting plate 205 to move to the initial position and then stops moving.

[0035] When filtration of the incoming oil is required, the oil first enters the distributor pipe 501 connected to the cylinder through the oil inlet 3. The distributor pipe 501 is a three-way pipe that distributes the oil to the filter cylinder 502. The filter cylinder 502 is equipped with a filter screen 503. When the oil passes through the filter screen 503, impurities and contaminants are filtered out, thus ensuring that the oil entering the cylinder body 1 is clean. The distributor pipe 501 is equipped with a one-way valve 504, which ensures that the oil can only flow in one direction. The oil flows from the inlet 3 to the outlet 4 to prevent backflow of oil and avoid contaminants from flowing back into the oil cylinder. The filtered clean oil enters the oil cylinder body 1 through the outlet 4. The piston, piston rod and other components inside the oil cylinder body 1 work under the lubrication and protection of the clean oil, reducing the possibility of wear and failure. The filter screen 503 is designed to be detachable. When the impurities on the filter screen 503 accumulate to a certain extent, it can be easily removed for cleaning or replacement to ensure that the filtration effect is continuously effective.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 hydraulic cylinder maintenance device with a built-in cleaning brush, characterized in that, Includes a cylinder body (1), one end of which is provided with a first processing component (2), and the outside of the cylinder body (1) is provided with an oil inlet (3) and an oil outlet (4) from bottom to top. One end of the oil inlet (3) and the oil outlet (4) are connected to a second processing component (5). The first processing component (2) includes a plurality of processing slots (201), which are symmetrically opened on the inner wall of the cylinder body (1). A motor (202) is fixedly installed at the upper end of the cylinder body (1) by bolts, and the output shaft of the motor (202) is provided with a threaded rod (203) through a coupling.

2. The hydraulic cylinder maintenance device with a built-in cleaning brush according to claim 1, characterized in that, One end of the threaded rod (203) extends into the interior of one of the processing grooves (201) and is connected to the interior of the processing groove (201) via a bearing. A guide rod (204) is provided inside the other processing groove (201).

3. A hydraulic cylinder maintenance device with a built-in cleaning brush according to claim 2, characterized in that, An adjusting plate (205) is connected to the threaded rod (203) and the guide rod (204). The outer and inner walls of the adjusting plate (205) are provided with a cleaning brush (206) and a cleaning scraper (207).

4. A hydraulic cylinder maintenance device with a built-in cleaning brush according to claim 3, characterized in that, The cleaning brush (206) and the cleaning scraper (207) are in contact with the inner wall of the cylinder body (1).

5. A hydraulic cylinder maintenance device with a built-in cleaning brush according to claim 4, characterized in that, The bottom end of the adjusting plate (205) is provided with a plurality of telescopic rods (208), and a spring (209) is provided around the telescopic rod (208). A buffer block (210) is provided at one end of the spring (209) and the telescopic rod (208).

6. A hydraulic cylinder maintenance device with a built-in cleaning brush according to claim 1, characterized in that, The second processing component (5) includes a diversion pipe (501), one end of which is connected to one end of the oil inlet (3) and the oil outlet (4), and a filter cylinder (502) is connected to the diversion pipe (501), and a filter screen (503) is provided inside the filter cylinder (502).

7. A hydraulic cylinder maintenance device with a built-in cleaning brush according to claim 6, characterized in that, A one-way valve (504) is provided on the diversion pipe (501), and the diversion pipe (501) is connected to the oil inlet (3) and the oil outlet (4).