Dustproof and anti-corrosion engineering telescopic rod sealing kit

Abstract

The utility model discloses a dustproof anti-corrosion engineering telescopic rod sealing kit which comprises a sealing kit body arranged between a hydraulic cylinder body and a piston rod, and the sealing kit body comprises a fixing disc fixed to the top end of the piston rod, a sealing sleeve connected to the bottom of the fixing disc and a fixing ring fixed to the outer side of the top end of the hydraulic cylinder body. The sealing sleeve covers the piston rod, and the bottom end of the sealing sleeve is located on the outer side of the fixing ring. The sealing sleeve piece made of rigid materials is designed between the hydraulic cylinder body and the piston rod, when the hydraulic cylinder body stretches out and draws back, the fixing disc and the sealing sleeve can move along with the hydraulic cylinder body, in the whole moving process, the sealing sleeve can always sleeve the outer side of the connecting position of the hydraulic cylinder body and the piston rod, and the dustproof and waterproof effects are achieved; and the rigid sealing sleeve further has good strength and impact resistance and is not prone to damage, a good sealing environment is guaranteed, and meanwhile the good anti-collision protection effect on the connecting position of the hydraulic cylinder body and the piston rod can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of telescopic pole technology, specifically relating to a sealing kit for a dustproof and corrosion-resistant engineering telescopic pole. Background Technology

[0002] Hydraulic telescopic rods are a common type of telescopic rod used in engineering. They are mechanical components driven by a hydraulic system. Hydraulic oil generates pressure within a sealed cylinder to push a piston rod in reciprocating motion, achieving length adjustment. They are characterized by their compact structure, large thrust, and precise control, and are widely used in engineering machinery, industrial equipment, and other fields to meet the telescopic needs of different engineering scenarios. Hydraulic telescopic rods consist of a hydraulic cylinder at the bottom and a piston rod. Since the piston rod repeatedly moves in and out of the hydraulic cylinder during use, if dust or water stains adhere to the surface of the piston rod, these contaminants can easily be brought into the hydraulic cylinder during retraction. Therefore, existing models often incorporate a sealing kit between the hydraulic cylinder and the piston rod.

[0003] To accommodate the extension and retraction of the piston rod, existing sealing kits mostly use flexible materials such as rubber. Although flexible sealing sleeves have good deformation adaptability, their own strength is often insufficient. During long-term outdoor use, the sealing sleeves are easily damaged and lose their sealing effect, which will have an adverse effect on the extension rod. Therefore, a new extension rod sealing kit needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a dustproof and corrosion-resistant engineering telescopic pole sealing kit to solve the problem that the flexible material sealing kit mentioned in the background art is easily damaged and loses its sealing performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dustproof and corrosion-resistant engineering telescopic rod sealing kit, comprising a sealing kit disposed between a hydraulic cylinder body and a piston rod, the sealing kit comprising...

[0006] A fixed plate is fixed to the top of the piston rod, a sealing sleeve is connected to the bottom of the fixed plate, and a fixing ring is fixed to the outside of the top of the hydraulic cylinder body. The sealing sleeve covers the outside of the piston rod, and its bottom end is located outside the fixing ring.

[0007] The sealing kit also includes a rubber ring fixed to the outside of the fixing ring, the rubber ring being located directly below the bottom end of the sealing sleeve.

[0008] Preferably, the sealing sleeve and the fixing ring are both annular in cross-section when viewed from above, and the inner surface of the sealing sleeve is in contact with the outer surface of the fixing ring.

[0009] Preferably, the sealing sleeve includes an inner sleeve and a ceramic coating, wherein the ceramic coating completely covers the outer layer of the inner sleeve.

[0010] Preferably, the sealing kit further includes anti-slip textures formed on the outer surface of the sealing sleeve.

[0011] Preferably, the sealing kit further includes a bottom ring, which is fixed to the bottom surface of the fixed plate and threadedly connected to the top of the sealing sleeve.

[0012] Preferably, the sealing kit further includes threads, which are respectively disposed on the outer surface of the bottom ring and the top inner surface of the inner sleeve.

[0013] Preferably, the sealing kit further includes a rubber gasket, which is fixed to the bottom surface of the mounting plate and located outside the bottom ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By designing a rigid sealing kit between the hydraulic cylinder body and the piston rod, the fixed plate and sealing sleeve can move together when the hydraulic cylinder body extends or retracts. Throughout the movement, the sealing sleeve can always be fitted on the outside of the connection between the hydraulic cylinder body and the piston rod, playing a role in dust and water protection. The rigid sealing sleeve also has good strength and impact resistance, and is not easily damaged. While ensuring a good sealing environment, it can also provide good impact protection for the connection between the hydraulic cylinder body and the piston rod. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a front sectional view of the sealing kit of this utility model;

[0018] Figure 3 This utility model Figure 1 Enlarged view of area A in the middle;

[0019] Figure 4 This utility model Figure 1 Enlarged diagram of area B in the middle;

[0020] In the diagram: 100, hydraulic cylinder body; 200, piston rod; 300, sealing kit; 301, fixed plate; 302, sealing sleeve; 3021, inner sleeve; 3022, ceramic coating; 303, retaining ring; 304, rubber ring; 305, anti-slip texture; 306, bottom ring; 307, thread; 308, rubber pad. Detailed Implementation

[0021] 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.

[0022] Example

[0023] Please see Figures 1 to 4 This embodiment provides a technical solution: a dustproof and corrosion-resistant engineering telescopic rod sealing kit, including a sealing kit 300 disposed between a hydraulic cylinder body 100 and a piston rod 200, the sealing kit 300 including...

[0024] The fixed plate 301 is fixed to the top of the piston rod 200, the sealing sleeve 302 is connected to the bottom of the fixed plate 301, and the fixed ring 303 is fixed to the outside of the top of the hydraulic cylinder body 100. The sealing sleeve 302 covers the outside of the piston rod 200. When the piston rod 200 is extended to the maximum extent, the bottom end of the sealing sleeve 302 still covers the outside of the connection between the piston rod 200 and the hydraulic cylinder body 100, thereby playing a protective role.

[0025] The sealing kit 300 also includes a rubber ring 304 fixed to the outside of the retaining ring 303. The rubber ring 304 is located directly below the bottom end of the sealing sleeve 302. When the piston rod 200 retracts, the bottom end of the sealing sleeve 302 also moves down. If it needs to move up again, the rubber ring 304 can scrape off any dust or water that may be stuck to the inner wall of the sealing sleeve 302, ensuring good dustproof and waterproof effect.

[0026] In this embodiment, preferably, the sealing sleeve 302 and the fixing ring 303 are both annular in cross-section when viewed from above, and the inner surface of the sealing sleeve 302 is in contact with the outer surface of the fixing ring 303 to ensure good sealing performance.

[0027] In this embodiment, preferably, the sealing sleeve 302 includes an inner sleeve 3021 and a ceramic coating 3022, with the ceramic coating 3022 completely covering the outer layer of the inner sleeve 3021, thereby improving corrosion resistance.

[0028] In this embodiment, preferably, the sealing kit 300 further includes anti-slip texture 305, which is formed on the outer surface of the sealing sleeve 302. The sealing kit 300 also includes a bottom ring 306, which is fixed to the bottom surface of the fixing plate 301 and threadedly connected to the top of the sealing sleeve 302. Personnel can disassemble the sealing sleeve 302 by rotating it from the fixing plate 301. The design of the anti-slip texture 305 makes it easy for personnel to rotate the sealing sleeve 302.

[0029] In this embodiment, preferably, the sealing kit 300 further includes threads 307, which are respectively disposed on the outer surface of the bottom ring 306 and the top inner surface of the inner sleeve 3021, thereby realizing the threaded connection between the sealing sleeve 302 and the bottom ring 306.

[0030] In this embodiment, preferably, the sealing kit 300 further includes a rubber pad 308, which is fixed to the bottom surface of the fixing plate 301 and located outside the bottom ring 306, thereby improving the sealing performance between the sealing sleeve 302 and the fixing plate 301.

[0031] Although embodiments of the present invention have been shown and described (see the detailed description above), 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 dust and corrosion proof engineering telescopic rod seal kit comprising a seal kit (300) disposed between a hydraulic cylinder barrel (100) and a piston rod (200), characterized in that: The sealing kit (300) comprises a fixing disc (301) fixed at the top end of the piston rod (200), a sealing sleeve (302) connected at the bottom of the fixing disc (301), and a fixing ring (303) fixed at the outside of the top end of the hydraulic cylinder body (100), wherein the sealing sleeve (302) covers the outside of the piston rod (200) and the bottom end is located outside the fixing ring (303); The sealing kit (300) further comprises a rubber ring (304) fixed outside the fixing ring (303), which is located directly below the bottom end of the sealing sleeve (302).

2. A dust and corrosion resistant telescopic pole sealing kit according to claim 1, characterized in that: The cross section of the sealing sleeve (302) and the fixing ring (303) in top view is annular, and the inner surface of the sealing sleeve (302) is in close contact with the outer surface of the fixing ring (303).

3. A dust and corrosion resistant telescopic pole sealing kit according to claim 2, characterized in that: The sealing sleeve (302) comprises an inner sleeve (3021) and a ceramic coating (3022), and the ceramic coating (3022) completely covers the outer layer of the inner sleeve (3021).

4. A dust and corrosion resistant extension pole sealing kit according to claim 3, wherein: The sealing kit (300) further comprises anti-skid lines (305) formed on the outer surface of the sealing sleeve (302).

5. A dust and corrosion resistant extension pole sealing kit according to claim 4, wherein: The sealing kit (300) further comprises a bottom ring (306) fixed at the bottom surface of the fixing disc (301) and screw-connected with the top end of the sealing sleeve (302).

6. A dust and corrosion resistant extension pole sealing kit according to claim 5, wherein: The sealing kit (300) further comprises threads (307) respectively formed on the outer surface of the bottom ring (306) and the inner surface of the top end of the inner sleeve (3021).

7. A dust and corrosion resistant extension pole sealing kit according to claim 6, wherein: The sealing kit (300) further comprises a rubber pad (308) fixed at the bottom surface of the fixing disc (301) and located outside the bottom ring (306).

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