Protective device for preventing dust of air cylinder

By designing a combination of rollers, bristles, gears, and rubber sleeves, the problem of piston rod wear in dusty environments was solved, achieving efficient dust prevention and a convenient cleaning process.

CN223952962UActive Publication Date: 2026-02-27SHAANXI PUXIN EQUIP ENG CO LTD
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Patent Information

Application Number
CN202520694753.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-02-27
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

When a cylinder is used in a dusty environment, the piston rod is prone to becoming covered in dust, which can cause wear on parts and affect the cylinder's service life.

Method used

A dustproof protection device was designed, comprising a roller, brush bristles, gears, a transmission ring, and a rubber sleeve. The roller rotates to clean the dust on the piston rod surface, and the gears and gear ring work together to improve cleaning efficiency. The rubber sleeve prevents dust from adhering.

Benefits of technology

It effectively prevents dust from entering the cylinder, extends the cylinder's service life, improves cleaning efficiency, and facilitates the disassembly and cleaning of components.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223952962U_ABST
    Figure CN223952962U_ABST
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Abstract

The utility model relates to the field of air cylinder dust prevention, in particular to a protection device for air cylinder dust prevention. A mounting groove is formed in a fixing support, a roller is movably arranged on the inner wall of the mounting groove, bristles are fixed to the outer surface of the roller, a gear is fixed to the upper end of the roller, a rubber sleeve movably sleeves the outer surface of the fixing support, a storage groove and an inner groove are formed in a transmission ring, a transmission rod is movably arranged in the storage groove, and a pull rod is fixed to the end of the transmission rod. The device has the beneficial effects that the piston rod can drive the roller to rotate when doing linear motion, so that the rotating roller can clean dust on the surface of the piston rod through the bristles, and the diameter of the gear ring is far larger than that of the gear, so that the dust on the surface of the piston rod is removed, and the service life of the piston rod is prolonged. And when the transmission ring drives the roller to rotate, the rotating speed of the roller is very high, so that the piston rod is cleaned more completely, and the situation that dust is brought into the air cylinder main body when the piston rod shrinks is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cylinder dust prevention, and specifically relates to a protection device for cylinder dust prevention. BACKGROUND

[0002] The cylinder is a device for converting the pressure energy of compressed air into mechanical energy, and is widely used in industrial automation and mechanical equipment.

[0003] In the prior art, the cylinder is a device for converting the energy of compressed air into mechanical energy, and belongs to a pneumatic actuator. The cylinder is composed of a cylinder body, a piston, a piston rod and a sealing element. Compressed air enters the cylinder through an air inlet and acts on one side of the piston. The pressure difference between the two sides of the piston generates a thrust force, which drives the piston to move to the low-pressure side and drives the piston rod to extend or retract.

[0004] However, when the cylinder is used in an environment with a lot of dust, the piston rod is easily covered with dust. The piston rod extends and retracts back and forth, and dust easily falls into the cylinder, causing wear and tear of the parts and affecting the use and service life of the cylinder. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a protection device for cylinder dust prevention to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a protection device for cylinder dust prevention, which comprises:

[0007] A cylinder main body is provided with a fixed support at the upper end. An installation slot is formed in the fixed support. A roller is movably arranged on the inner wall of the installation slot. Brush hairs are fixed on the outer surface of the roller. A gear is fixed on the upper end of the roller. A rubber sleeve is movably arranged on the outer surface of the fixed support.

[0008] A transmission ring is provided with a receiving slot and an inner slot. A transmission rod is movably arranged in the receiving slot. A pull rod is fixed at the end of the transmission rod. A spring is movably arranged on the outer surface of the pull rod. A tooth ring is fixed on the inner wall of the inner slot.

[0009] Preferably, a piston rod is movably arranged in the cylinder main body. A transmission slot is formed on the outer surface of the piston rod. The fixed support, the piston rod and the transmission ring are coaxial. Shafts are fixed at both ends of the roller. The gear is fixed on the end of the shaft arranged on the upper end of the roller.

[0010] Preferably, a scraper is fixed on the outer surface of the fixed support. The scraper corresponds to the installation slot. The scraper is located in the rubber sleeve. A limiting slot is formed on the upper end of the cylinder main body. The transmission ring is movably arranged on the upper end of the fixed support.

[0011] Preferably, the lower end of the transmission ring is fixed with a limiting block, the limiting groove is correspondingly and movably clamped with the limiting block, and the transmission groove is correspondingly and movably clamped with the transmission rod.

[0012] Preferably, the receiving groove is located above the inner groove, the end of the transmission rod is fixed with a baffle, the end of the baffle is fixed with a pull rod, the pull rod is inserted into the outer side surface of the transmission ring, and the transmission rod is inserted into the inner side surface of the transmission ring.

[0013] Preferably, the spring is located in the receiving groove, the diameter of the baffle is greater than the diameter of the pull rod and the transmission rod, and the diameter of the baffle is equal to the diameter of the inner wall of the receiving groove.

[0014] Preferably, the gear is movably located in the inner groove, the width of the inner groove is greater than the diameter of the gear, and the gear is correspondingly clamped with the tooth ring.

[0015] Compared with the prior art, the piston rod drives the roller to rotate when the piston rod moves linearly, so that the rotating roller can clean the dust on the surface of the piston rod through the bristles, and the diameter of the tooth ring is much greater than the diameter of the gear, so that the rotating speed of the roller is very fast when the transmission ring drives the roller to rotate, thereby making the cleaning of the piston rod more complete, thereby avoiding the situation that the dust is brought into the cylinder body when the piston rod is retracted, and since the rubber sleeve exists, the dust in the outside cannot be directly adsorbed on the surface of the bristles, and when the cleaning assembly needs to be disassembled and cleaned, the transmission rod is no longer clamped with the transmission groove by pulling the pull rod, at this time, the cleaning assembly can be disassembled from the cylinder body.

[0016] The piston rod drives the roller to rotate when the piston rod moves linearly, so that the rotating roller can clean the dust on the surface of the piston rod through the bristles, and the diameter of the tooth ring is much greater than the diameter of the gear, so that the rotating speed of the roller is very fast when the transmission ring drives the roller to rotate, thereby making the cleaning of the piston rod more complete, thereby avoiding the situation that the dust is brought into the cylinder body when the piston rod is retracted, and since the rubber sleeve exists, the dust in the outside cannot be directly adsorbed on the surface of the bristles, and when the cleaning assembly needs to be disassembled and cleaned, the transmission rod is no longer clamped with the transmission groove by pulling the pull rod, at this time, the cleaning assembly can be disassembled from the cylinder body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure perspective view of the utility model;

[0018] Figure 2 It is a cleaning assembly structure perspective view of the utility model;

[0019] Figure 3 It is an explosion perspective view of the cleaning assembly structure of the utility model;

[0020] Figure 4 It is another side explosion perspective view of the cleaning assembly structure of the utility model;

[0021] Figure 5 It is a fixed support structure perspective view of the utility model;

[0022] Figure 6 It is a brush assembly structure perspective view of the utility model;

[0023] Figure 7This is an exploded three-dimensional schematic diagram of the transmission component structure of this utility model.

[0024] In the diagram: 1. Cylinder body; 2. Fixed bracket; 3. Transmission groove; 4. Piston rod; 5. Transmission ring; 6. Roller; 7. Rubber sleeve; 8. Mounting groove; 9. Limiting groove; 10. Scraper; 11. Gear; 12. Shaft; 13. Brush bristles; 14. Tie rod; 15. Spring; 16. Baffle; 17. Transmission rod; 18. Storage groove;

[0025] 19. Inner groove; 20. Limiting block; 21. Gear ring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1, please refer to Figures 1-7 This utility model provides a technical solution: a protective device for cylinder dust prevention. A fixed bracket 2 is fixed to the upper end of the cylinder body 1. An installation groove 8 is opened inside the fixed bracket 2. A roller 6 is movably installed on the inner wall of the installation groove 8. Brush bristles 13 are fixed to the outer surface of the roller 6. The rotating roller 6 will clean the dust on the surface of the piston rod 4 through the brush bristles 13. A gear 11 is fixed to the upper end of the roller 6. A rubber sleeve 7 is movably fitted on the outer surface of the fixed bracket 2. Due to the presence of the rubber sleeve 7, external dust will not be directly adsorbed on the surface of the brush bristles 13, avoiding the accumulation of more dust on the surface of the piston rod 4 due to external influences.

[0028] The transmission ring 5 has a storage groove 18 and an inner groove 19 inside. The transmission rod 17 is movably installed inside the storage groove 18. Since the transmission rod 17 is locked to the transmission groove 3 and the transmission groove 3 is spiral in shape, while the piston rod 4 can only move linearly and does not rotate, the piston rod 4 will drive the transmission ring 5 to rotate on the upper surface of the fixed bracket 2 through the transmission rod 17 when it moves. A pull rod 14 is fixed to the end of the transmission rod 17. A spring 15 is movably sleeved on the outer surface of the pull rod 14. Pulling the pull rod 14 will make the transmission rod 17 no longer locked to the transmission groove 3. At this time, the cleaning component can be removed from the cylinder body 1. A toothed ring 21 is fixed to the inner wall side surface of the inner groove 19.

[0029] On the basis of embodiment one, in order to realize the cleaning of the dust on the surface of the piston rod 4, the piston rod 4 is movably arranged inside the cylinder body 1, the transmission groove 3 is arranged on the outer surface of the piston rod 4, the fixed support 2, the piston rod 4 and the transmission ring 5 are coaxial, the two ends of the roller 6 are fixedly connected with the shaft 12, the gear 11 is fixedly connected with the end of the shaft 12 arranged on the upper end of the roller 6, the scraper 10 is fixedly arranged on the outer surface of the fixed support 2, the scraper 10 can clean the dust adsorbed on the surface of the brush 13 during the cleaning of the piston rod 4, so as to ensure the cleanliness of the surface of the brush 13, the scraper 10 corresponds to the installation groove 8, the scraper 10 is arranged inside the rubber sleeve 7, the limiting groove 9 is arranged on the upper end of the cylinder body 1, and the transmission ring 5 is movably arranged on the upper end of the fixed support 2.

[0030] The limiting block 20 is fixedly arranged on the lower end of the transmission ring 5, the limiting groove 9 corresponds to the limiting block 20 and is movably arranged, and the transmission groove 3 corresponds to the transmission rod 17 and is movably arranged. Since the transmission rod 17 and the transmission groove 3 are movably arranged, the shape of the transmission groove 3 is spiral, and the piston rod 4 cannot rotate but can only move linearly, so that the piston rod 4 can drive the transmission ring 5 to rotate on the surface of the upper end of the fixed support 2 when the piston rod 4 moves.

[0031] The receiving groove 18 is arranged above the inner groove 19, the baffle 16 is fixedly arranged on the end of the transmission rod 17, the pull rod 14 is fixedly arranged on the end of the baffle 16, the pull rod 14 penetrates through the outer surface of the transmission ring 5, the transmission rod 17 penetrates through the inner surface of the transmission ring 5, and the spring 15 is arranged inside the receiving groove 18. The elasticity of the spring 15 can always make the transmission rod 17 movably arranged in the transmission groove 3 by supporting the baffle 16, the diameter of the baffle 16 is greater than the diameter of the pull rod 14 and the transmission rod 17, and the diameter of the baffle 16 is equal to the diameter of the inner wall of the receiving groove 18, so that the transmission rod 17 cannot be separated from the receiving groove 18.

[0032] The gear 11 is movably arranged inside the inner groove 19, the width of the inner groove 19 is greater than the diameter of the gear 11, the gear 11 corresponds to the gear ring 21 and is movably arranged. Since the gear 11 and the gear ring 21 are movably arranged, the transmission ring 5 can drive the roller 6 to rotate on the inner wall of the installation groove 8 while rotating, and the diameter of the gear ring 21 is much greater than the diameter of the gear 11, so that the rotation speed of the roller 6 is very fast when the transmission ring 5 drives the roller 6 to rotate, so that the cleaning of the piston rod 4 is more complete.

[0033] In actual use, before the cylinder body 1 is used, the cleaning assembly is fixed on the cylinder body 1 and coaxial with the piston rod 4, that is, the fixed support 2 is fixed on the cylinder body 1 by means of bolts and other detachable components, and the transmission rod 17 is movably arranged in the transmission groove 3;

[0034] When the cylinder body 1 is used, the piston rod 4 comes out from the inside of the cylinder body 1, since the transmission rod 17 is mutually clamped with the transmission groove 3, and the transmission groove 3 is in the shape of a spiral, the piston rod 4 cannot rotate and can only move linearly, so when the piston rod 4 moves, it will drive the transmission ring 5 to rotate on the end surface of the fixed support 2 through the transmission rod 17;

[0035] Since the gear 11 is mutually clamped with the tooth ring 21, when the transmission ring 5 rotates, it will drive the roller 6 to rotate in the inner wall of the installation groove 8 through the gear 11, the rotating roller 6 will clean the dust on the surface of the piston rod 4 through the brush 13, and the dust adsorbed on the surface of the brush 13 will be removed through the scraper 10;

[0036] Whether the piston rod 4 is extended or retracted, the piston rod 4 will drive the roller 6 to rotate when it moves linearly, so that the rotating roller 6 will clean the dust on the surface of the piston rod 4 through the brush 13, and the diameter of the tooth ring 21 is much larger than the diameter of the gear 11, so when the transmission ring 5 drives the roller 6 to rotate, the rotating speed of the roller 6 will be very fast, so that the cleaning of the piston rod 4 is more complete, thereby avoiding the situation that the piston rod 4 brings dust into the cylinder body 1 when it is retracted, and since the rubber sleeve 7 exists, the dust in the outside world cannot be directly adsorbed on the surface of the brush 13, and when the cleaning assembly needs to be disassembled and cleaned, the transmission rod 17 is no longer clamped with the transmission groove 3 by pulling the pull rod 14, at this time the cleaning assembly can be disassembled from the cylinder body 1.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A protective device for dust protection of a cylinder, characterized in that: The protective device for dust prevention of the air cylinder comprises: The air cylinder body (1) is fixed with a fixed support (2) at the upper end, an installation groove (8) is arranged in the fixed support (2), a roller (6) is movably arranged on the inner wall of the installation groove (8), brush hairs (13) are fixed on the outer surface of the roller (6), a gear (11) is fixed on the upper end of the roller (6), and a rubber sleeve (7) is movably arranged on the outer surface of the fixed support (2). A transmission ring (5) is arranged, an accommodation groove (18) and an inner groove (19) are arranged in the transmission ring (5), a transmission rod (17) is movably arranged in the accommodation groove (18), a pull rod (14) is fixed on the end of the transmission rod (17), a spring (15) is movably arranged on the outer surface of the pull rod (14), and a tooth ring (21) is fixed on the inner wall of the inner groove (19).

2. A protective device for dustproofing of a cylinder according to claim 1, characterized in that: The air cylinder body (1) is movably arranged with a piston rod (4), a transmission groove (3) is arranged on the outer surface of the piston rod (4), the fixed support (2), the piston rod (4) and the transmission ring (5) are coaxial, the roller (6) is fixed with a rotating shaft (12) at both ends, and the gear (11) is fixed on the end of the rotating shaft (12) arranged on the upper end of the roller (6).

3. A protective device for dustproofing of a cylinder according to claim 2, characterized in that: The outer surface of the fixed support (2) is fixed with a scraper (10), the scraper (10) corresponds to the installation groove (8), the scraper (10) is located in the rubber sleeve (7), a limiting groove (9) is arranged on the upper end of the air cylinder body (1), and the transmission ring (5) is movably arranged on the upper end of the fixed support (2).

4. A protective device for dustproofing of a cylinder according to claim 3, characterized in that: The lower end of the transmission ring (5) is fixed with a limiting block (20), the limiting groove (9) corresponds to the limiting block (20) and is movably clamped, the transmission groove (3) corresponds to the transmission rod (17) and is movably clamped.

5. A protective device for cylinder dust prevention according to claim 4, characterized in that: The accommodation groove (18) is located above the inner groove (19), the end of the transmission rod (17) is fixed with a baffle (16), the end of the baffle (16) is fixed with a pull rod (14), the pull rod (14) penetrates the outer surface of the transmission ring (5), and the transmission rod (17) penetrates the inner surface of the transmission ring (5).

6. A protective device for cylinder dust prevention according to claim 5, characterized in that: The spring (15) is located in the accommodation groove (18), the diameter of the baffle (16) is greater than the diameter of the pull rod (14) and the transmission rod (17), and the diameter of the baffle (16) is equal to the diameter of the inner wall of the accommodation groove (18).

7. A protective device for the dustproof of a cylinder according to claim 6, characterized in that: The gear (11) is movably arranged in the inner groove (19), the width of the inner groove (19) is greater than the diameter of the gear (11), and the gear (11) corresponds to the tooth ring (21) and is clamped.