Dustproof and leakproof hydraulic cylinder sealing structure

Abstract

The utility model discloses a dustproof leakproof hydraulic cylinder sealing structure, which relates to the technical field of hydraulic cylinder sealing, and comprises a cylinder body and a joint, the outer wall of the joint is buckled with a sealing mechanism, the sealing mechanism comprises a first fitting piece, a second fitting piece and a first limiting piece, according to the utility model, the two first attaching pieces are symmetrically distributed on the two sides of the joint in the sealing mechanism, and the bent plates at the two ends of the two first attaching pieces and the second attaching piece embedded in the middle are spliced into a closed frame-shaped structure; the frame-shaped structure and the fitting design of the sealing mechanism can effectively prevent dust and other impurities from entering the hydraulic cylinder, prevent the impurities from affecting normal operation of the hydraulic cylinder, conduct targeted protection on connecting seams, and are simple in structure, convenient to install and maintain, capable of adapting to the working environment of the hydraulic cylinder, and capable of prolonging the service life of the hydraulic cylinder. And the stability and the safety of the hydraulic cylinder during working are ensured.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder sealing technology, and in particular to a dustproof and leak-proof hydraulic cylinder sealing structure. Background Technology

[0002] Hydraulic cylinders, as energy conversion devices that transform hydraulic energy into mechanical energy, are widely used in industrial production. The sealing performance of hydraulic cylinders directly affects their working efficiency and service life.

[0003] However, in the existing technology, the traditional hydraulic cylinder sealing structure is prone to wear of the seals due to the intrusion of dust and impurities during long-term use, which can lead to leakage. Moreover, the existing sealing structure often has problems such as complicated installation, poor sealing performance, and difficulty in effectively protecting key parts such as hydraulic cylinder joints. This not only affects the normal operation of the hydraulic cylinder, but may also cause equipment failure, reduce production efficiency, and even bring safety hazards. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of poor dustproof effect of existing hydraulic cylinder sealing structures, easy wear of seals and leakage caused by dust and impurities, and complex structure installation, making it difficult to effectively protect key connection parts. Therefore, a dustproof and leak-proof hydraulic cylinder sealing structure is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dustproof and leak-proof hydraulic cylinder sealing structure, comprising a cylinder body and a connector, wherein a sealing mechanism is fastened to the outer wall of the connector, the sealing mechanism comprising a first fitting piece, a second fitting piece and a first limiting piece, the first limiting piece being fixedly installed on one side of the first fitting piece, both ends of the two first fitting pieces being fixedly connected to a bending plate, the two first fitting pieces being symmetrically distributed on both sides of the connector, the second fitting piece being fitted between the two first fitting pieces, the first limiting piece being fastened to the upper surface of the connector, a threaded rod being threadedly connected between the first fitting piece and the second fitting piece, the first fitting piece, the second fitting piece and the bending plate being spliced ​​together to form a closed frame structure, and both the first fitting piece and the second fitting piece being fitted to the joint seam of the connector.

[0006] Preferably, a second limiting piece is fixedly connected to the other side of the first bonding piece, and the second limiting piece is fastened to the lower surface of the connector.

[0007] Preferably, extension rods are fixedly installed at each of the four corners of the second bonding piece, and the extension rods are located on both sides of the bent plate.

[0008] Preferably, the two oppositely arranged extension rods form a limiting mechanism for the bent plate.

[0009] Preferably, a recess is formed between the two extension rods, and the end of the bent plate is inserted into the inside of the recess.

[0010] Preferably, the second bonding piece forms an anti-detachment plate above the recess, and the anti-detachment plate is fastened to the surface of the bent plate.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, two first bonding pieces symmetrically distributed on both sides of the joint in the sealing mechanism are spliced ​​together with the bent plates at both ends and the second bonding piece embedded in the middle to form a closed frame structure, so that the first bonding pieces and the second bonding pieces are bonded to the joint connection seam. The frame structure and bonding design of the sealing mechanism can effectively prevent dust and other impurities from entering the hydraulic cylinder, avoid impurities from affecting the normal operation of the hydraulic cylinder, provide targeted protection for the connection seam, have a simple structure and are easy to install and maintain, can adapt to the working environment of the hydraulic cylinder, extend its service life, and ensure the stability and safety of the hydraulic cylinder during operation.

[0013] 2. In this utility model, the extension rods at the four corners of the second bonding piece are distributed on both sides of the bending plate, and the opposite extension rods form a limiting mechanism. The end of the bending plate is inserted into the recess between the extension rods. At the same time, the anti-detachment plate of the second bonding piece above the recess holds the surface of the bending plate. In this way, the components cooperate with each other, and through limiting and fastening, the components of the sealing mechanism are tightly connected, forming a stable seal for the hydraulic cylinder joint connection seam. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a dustproof and leak-proof hydraulic cylinder sealing structure proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the end planar structure of a dustproof and leak-proof hydraulic cylinder sealing structure proposed in this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the sealing mechanism of a dustproof and leak-proof hydraulic cylinder sealing structure proposed in this utility model.

[0017] Figure 4 This is a schematic diagram showing the disassembled structure of the first and second bonding pieces of a dustproof and leak-proof hydraulic cylinder sealing structure proposed in this utility model.

[0018] Legend: 1. Cylinder body; 2. Connector; 3. Sealing mechanism; 31. First bonding piece; 32. Second bonding piece; 33. First limiting piece; 34. Threaded rod; 35. Extension rod; 36. Second limiting piece; 37. Bending plate; 38. Anti-detachment plate; 39. Recessed part. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a dustproof and leak-proof hydraulic cylinder sealing structure, including a cylinder body 1 and a connector 2. A sealing mechanism 3 is fastened to the outer wall of the connector 2. The sealing mechanism 3 includes a first fitting piece 31, a second fitting piece 32, and a first limiting piece 33. The first limiting piece 33 is fixedly installed on one side of the first fitting piece 31. Bending plates 37 are fixedly connected to both ends of the two first fitting pieces 31. The two first fitting pieces 31 are symmetrically distributed on both sides of the connector 2. The second fitting piece 32 is fitted between the two first fitting pieces 31. The first limiting piece 33 is fastened to the upper surface of the connector 2. A threaded rod 34 is threadedly connected between the first fitting piece 31 and the second fitting piece 32. The first fitting piece 31, the second fitting piece 32, and the bending plate 37 are spliced ​​together to form a closed frame structure. The first fitting piece 31 and the second fitting piece 32 are both fitted at the joint seam of the connector 2.

[0022] The specific settings and functions of this embodiment are described in detail below. Two first bonding pieces 31 symmetrically distributed on both sides of the joint 2 in the sealing mechanism 3 are joined by bent plates 37 at both ends and a second bonding piece 32 embedded in the middle to form a closed frame structure. This allows the first bonding pieces 31 and 32 to fit together at the joint seam of the joint 2. A threaded rod 34 then connects the first bonding pieces 31 and 32. Simultaneously, a first limiting piece 33 is fixedly installed on one side of the first bonding piece 31 and fastened to the upper surface of the joint 2, thereby sealing the joint seam. The frame structure and fitting design of the sealing mechanism 3 effectively prevent dust and other impurities from entering the hydraulic cylinder, avoiding any impact on its normal operation. The connection of the threaded rod 34 and the fastening of the first limiting piece 33 enhance the tightness of the sealing structure, reduce the risk of leakage, and improve the sealing performance and reliability of the hydraulic cylinder. This structure, installed on the outer wall of the joint 2, provides targeted protection for the joint seam. It is simple in structure, easy to install and maintain, adaptable to the working environment of the hydraulic cylinder, extends its service life, and ensures the stability and safety of the hydraulic cylinder during operation.

[0023] Example 2: Figure 3 and Figure 4 As shown, a second limiting piece 36 is fixedly connected to the other side of the first bonding piece 31. The second limiting piece 36 is fastened to the lower surface of the connector 2. An extension rod 35 is fixedly installed at each of the four corners of the second bonding piece 32. The extension rods 35 are located on both sides of the bent plate 37. The two oppositely arranged extension rods 35 form a limiting mechanism for the bent plate 37. A recess 39 is formed between the two extension rods 35. The end of the bent plate 37 is inserted into the inner side of the recess 39. An anti-detachment plate 38 is formed above the recess 39 on the second bonding piece 32. The anti-detachment plate 38 is fastened to the surface of the bent plate 37.

[0024] The overall effect of this embodiment is that the second limiting piece 36 on the other side of the first bonding piece 31 is fastened to the lower surface of the connector 2, forming an upper and lower clamping with the first limiting piece 33 on the upper surface, thus stabilizing the position of the first bonding piece 31. The extension rods 35 at the four corners of the second bonding piece 32 are distributed on both sides of the bending plate 37, and the opposing extension rods 35 constitute a limiting mechanism. The end of the bending plate 37 is inserted into the recess 39 between the extension rods 35. At the same time, the anti-detachment plate 38 of the second bonding piece 32 above the recess 39 fastens to the surface of the bending plate 37. In this way, the components cooperate with each other, through The limiting and fastening mechanisms ensure a tight fit between all components of the sealing mechanism 3, forming a stable seal on the connection seam of the hydraulic cylinder joint 2. The second limiting plate 36 enhances the stability of the sealing structure in the vertical direction of the joint 2. The limiting and anti-disengagement structure composed of the extension rod 35, the recessed part 39, and the anti-disengagement plate 38 prevents the bending plate 37 from loosening and shifting, enhances the overall robustness of the sealing mechanism 3, avoids seal failure due to component displacement, further improves dustproof and leak-proof performance, ensures a clean working environment for the hydraulic cylinder, reduces the risk of leakage, improves the stability and reliability of equipment operation, and extends service life.

[0025] The usage and working principle of this device are as follows: First, place two symmetrically distributed first bonding pieces 31 on both sides of the connector 2, so that the first limiting pieces 33 on the first bonding pieces 31 are fastened to the upper surface of the connector 2. Simultaneously, fasten the second limiting pieces 36 on the other side of the first bonding pieces 31 to the lower surface of the connector 2, thus initially fixing the position of the first bonding pieces 31. Next, fit the second bonding piece 32 between the two first bonding pieces 31, ensuring that the extension rods 35 at the four corners of the second bonding piece 32 are located on both sides of the bending plate 37. Insert the end of the bent plate 37 into the recess 39 formed by the two extension rods 35, so that the anti-detachment plate 38 of the second bonding piece 32 above the recess 39 is fastened to the surface of the bent plate 37. At this time, the first bonding piece 31, the second bonding piece 32 and the bent plate 37 are spliced ​​into a closed frame structure and are attached to the joint seam of the connector 2. Finally, the first bonding piece 31 and the second bonding piece 32 are threaded together by the threaded rod 34, and the threaded rod 34 is tightened to make the components of the sealing mechanism 3 tightly connected, thus completing the sealing installation of the joint seam of the hydraulic cylinder connector 2.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dustproof and leak-proof hydraulic cylinder sealing structure, comprising a cylinder body (1) and a connector (2), characterized in that: A sealing mechanism (3) is fastened to the outer wall of the connector (2). The sealing mechanism (3) includes a first fitting piece (31), a second fitting piece (32), and a first limiting piece (33). The first limiting piece (33) is fixedly installed on one side of the first fitting piece (31). Both ends of the two first fitting pieces (31) are fixedly connected to a bending plate (37). The two first fitting pieces (31) are symmetrically distributed on both sides of the connector (2). The second fitting piece (32) is fitted between the two first fitting pieces (31). The first limiting piece (33) is fastened to the upper surface of the connector (2). A threaded rod (34) is threaded between the first fitting piece (31) and the second fitting piece (32). The first fitting piece (31), the second fitting piece (32), and the bending plate (37) are spliced ​​together to form a closed frame structure. The first fitting piece (31) and the second fitting piece (32) are both fitted at the joint seam of the connector (2).

2. The dustproof and leak-proof hydraulic cylinder sealing structure according to claim 1, characterized in that: A second limiting piece (36) is fixedly connected to the other side of the first bonding piece (31), and the second limiting piece (36) is fastened to the lower surface of the connector (2).

3. The dustproof and leak-proof hydraulic cylinder sealing structure according to claim 1, characterized in that: Extension rods (35) are fixedly installed at the four corners of the second bonding piece (32), and the extension rods (35) are located on both sides of the bending plate (37).

4. The dustproof and leak-proof hydraulic cylinder sealing structure according to claim 3, characterized in that: The two opposing extension rods (35) form a limiting mechanism for the bent plate (37).

5. The dustproof and leak-proof hydraulic cylinder sealing structure according to claim 3, characterized in that: A recess (39) is formed between the two extension rods (35), and the end of the bent plate (37) is inserted into the inside of the recess (39).

6. The dustproof and leak-proof hydraulic cylinder sealing structure according to claim 5, characterized in that: The second bonding piece (32) forms an anti-detachment plate (38) above the recess (39), and the anti-detachment plate (38) is fastened to the surface of the bending plate (37).

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