Hydraulic pipe joint with protective structure

Abstract

The utility model discloses a hydraulic pipe joint with a protective structure, relates to the technical field of hydraulic pipe joints, and aims to solve the problems that when the hydraulic pipe joint is collided by broken stones and accidentally collided during tool operation at present, due to the fact that the thicknesses of the inner walls of the hydraulic pipe joint are different, when a thin part is collided by the broken stones, cracks and sunken deformation occur, sealing fails, and the service life of the hydraulic pipe joint is prolonged. The hydraulic oil leakage protection device comprises a first connector, a second connector arranged at one end of the first connector, a connecting assembly arranged on the second connector and a protection assembly arranged on the connecting assembly. The protection plate structure is arranged, when broken stone collides with the protection sleeve, external force is firstly contacted, the protection sleeve rotates under the action of the rotating shaft under the action of the external force, the S-shaped sliding groove in the clamping sleeve interacts with the moving block, the protection plate is pushed to be attached to the inner wall of the protection sleeve, an additional protection layer is formed, and the external force is effectively dispersed and buffered; the problems that the second connector cracks, depressed and deformed due to stress, sealing fails and hydraulic oil leaks are solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipe fitting technology, and more specifically, to a hydraulic pipe fitting with a protective structure. Background Technology

[0002] Hydraulic pipe fittings are components that connect hydraulic pipelines and are used to transmit hydraulic oil. They come in various types, such as compression fittings and welded fittings, and must have sealing and pressure resistance. They are mostly made of metal.

[0003] In high-intensity operating scenarios such as construction machinery and mining equipment, hydraulic pipe joints often face complex physical impact environments, such as impacts from gravel, accidental bumps during tool operation, or hard compression between equipment components. These factors directly load the protective structure of the pipe joint. If the protective structure is insufficiently strong and develops micro-cracks, due to the varying thickness of the inner wall of the hydraulic pipe joint, cracks will occur when the thinner section is impacted by gravel. As the operating conditions intensify, the cracks will rapidly propagate until structural failure occurs, resulting in dented deformation, leading to seal failure and hydraulic oil leakage. Therefore, we propose a hydraulic pipe joint with a protective structure. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a hydraulic pipe joint with a protective structure to solve the technical problem that when the hydraulic pipe joint is hit by gravel or accidentally bumped during tool operation, the inner wall thickness of the hydraulic pipe joint is different. When the thinner part is hit by gravel, cracks and dents will occur, resulting in sealing failure and hydraulic oil leakage.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hydraulic pipe connector with a protective structure, including a first connector and a second connector disposed at one end of the first connector, a connecting component disposed on the second connector, and a protective component disposed on the connecting component. The connecting component includes a ferrule and a sliding groove. The ferrule is threadedly connected to the second connector. A plurality of sliding grooves are formed on the annular outer wall of the ferrule. The protective component includes a protective sleeve and a protective plate. The protective sleeve is fitted onto the ferrule, and the protective plate is disposed between the protective sleeve and the ferrule.

[0006] Preferably, the ferrule has an internal thread that is adapted to the second connector.

[0007] Preferably, the plurality of slides are arranged in an S-shape, the beginning and end of the plurality of slides are arranged in a straight line, and a plurality of movable blocks are slidably connected inside the plurality of slides.

[0008] Preferably, a rotating shaft is fixedly connected inside the end of the protective sleeve, and a limiting ring is fixedly connected inside the protective sleeve, with the limiting ring forming a rotating cavity inside the protective sleeve.

[0009] Preferably, the two ends of the limiting ring are slidably connected to a plurality of protective plates, the plurality of protective plates are located inside the rotating cavity, the plurality of protective plates are located above a plurality of moving blocks, the top of the plurality of protective plates is fixedly connected to a plurality of springs, and the other end of the plurality of springs is fixedly connected to the inner wall of the protective sleeve.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model, by setting a protective plate structure, ensures that when gravel impacts the protective sleeve, it first comes into contact with the external force. The external force causes the protective sleeve to rotate under the action of the rotating shaft. The S-shaped groove on the sleeve interacts with the moving block, pushing the protective plate to fit against the inner wall of the protective sleeve, forming an additional protective layer. This effectively disperses and buffers the external force, solving the problems of cracks and dents in the second joint due to stress, sealing failure, and hydraulic oil leakage.

[0012] 2. This utility model also features a sliding groove structure. Since the beginning and end of the S-shaped sliding groove are symmetrically arranged in a straight line, the sliding trajectory of the moving block is stable. During the process of pushing the protective plate upward, the concentrated impact force can be dispersed to the inner wall of the protective sleeve and the entire contact surface of the protective plate, further optimizing the effect of lifting the protective plate by rotating the protective sleeve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the protective component structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the connecting component structure of this utility model.

[0018] The following are the labels in the diagram: 1. First connector; 2. Second connector; 3. Connecting assembly; 301. Compression sleeve; 302. Internal thread; 303. Slide groove; 304. Moving block; 4. Protective assembly; 401. Protective sleeve; 402. Rotating shaft; 403. Limiting ring; 404. Protective plate; 405. Spring. Detailed Implementation

[0019] like Figures 1 to 5As shown, the present invention relates to a hydraulic pipe connector with a protective structure, including a first connector 1, a second connector 2 disposed at one end of the first connector 1, a connecting component 3 disposed on the second connector 2, and a protective component 4 disposed on the connecting component 3. The connecting component 3 includes a retaining sleeve 301 and a sliding groove 303. The retaining sleeve 301 is threadedly connected to the second connector 2. A plurality of sliding grooves 303 are provided on the annular outer wall of the retaining sleeve 301. The protective component 4 includes a protective sleeve 401 and a protective plate 404. The protective sleeve 401 is sleeved on the retaining sleeve 301, and the protective plate 404 is disposed between the protective sleeve 401 and the retaining sleeve 301.

[0020] This utility model, by setting up a protective plate 404 structure, ensures that when gravel impacts the protective sleeve 401, it first comes into contact with the external force. The external force causes the protective sleeve 401 to rotate under the action of the rotating shaft 402. The S-shaped sliding groove 303 on the ferrule 301 interacts with the moving block 304, pushing the protective plate 404 to fit against the inner wall of the protective sleeve 401, forming an additional protective layer. This effectively disperses and buffers the external force, solving the problems of cracks and dents in the second joint 2 due to stress, as well as sealing failure and hydraulic oil leakage.

[0021] In embodiments of this utility model, such as Figure 3 , Figure 5 As shown, the ferrule 301 has an internal thread 302, which is adapted to the second connector 2. The ferrule 301 protects the second connector 2, and the internal thread 302, due to its adaptation to the second connector 2, ensures a tight fixation between the ferrule 301 and the second connector 2.

[0022] In embodiments of this utility model, such as Figure 3 , Figure 5 As shown, several slids 303 are arranged in an S-shape, with their beginning and end points aligned in a straight line. Several movable blocks 304 are slidably connected inside the slids 303. When the movable blocks 304 move along the trajectory of the slids 303, the slids 303, being S-shaped and symmetrically arranged at their beginning and end points, ensure that the movable blocks 304 remain straight before and after movement. When the movable blocks 304 move, they push the protective plate 404 to lift it, thus protecting the components inside the protective sleeve 401 by fitting the protective plate 404 against the inside of the protective sleeve 401. This prevents the second joint 2 from cracking and denting due to impact from gravel, which could lead to sealing failure.

[0023] In embodiments of this utility model, such as Figure 4 , Figure 5As shown, a rotating shaft 402 is fixedly connected to the inner end of the protective sleeve 401, and a limiting ring 403 is fixedly connected inside the protective sleeve 401, forming a rotating cavity inside the protective sleeve 401. The rotating shaft 402 facilitates the rotation of the protective sleeve 401. When the protective sleeve 401 rotates, it drives the retaining sleeve 301 to rotate synchronously. The limiting ring 403 limits the position of the protective plate 404, which helps the protective plate 404 to fit more closely to the inner wall of the protective sleeve 401 when it is lifted.

[0024] In embodiments of this utility model, such as Figure 2 , Figure 4 , Figure 5 As shown, several protective plates 404 are slidably connected to both ends of the limiting ring 403. These protective plates 404 are located within the rotating cavity and above several moving blocks 304. Several springs 405 are fixedly connected to the top of each protective plate 404, and the other ends of the springs 405 are fixedly connected to the inner wall of the protective sleeve 401. When the protective sleeve 401 is being protected, as the moving block 304 moves along the track of the slide groove 303 from the beginning to the end, the slide groove 303 is set in a straight line, causing the moving block 304 to push the protective plates 404 upwards. When the protective plates 404 move to the inner wall of the protective sleeve 401, they protect the internal components of the protective sleeve 401. The springs 405, due to their own elasticity, also reset the protective sleeve 401.

[0025] Working Principle: This embodiment provides a hydraulic pipe connector with a protective structure. In use, the first connector 1 and the second connector 2 are first connected to the required hydraulic pipeline. The internal thread 302 of the ferrule 301 engages with the threaded connection of the second connector 2, tightly fixing the ferrule 301 onto the second connector 2, achieving initial connection and protection. When the hydraulic pipe connector is impacted by external forces such as gravel or tool impacts, the protective sleeve 401 first contacts the external force. If the direction of the external force causes the protective sleeve 401 to rotate, the protective sleeve 401 rotates via the rotating shaft 402. During the rotation of the protective sleeve 401, the S-shaped sliding groove 303 on the annular outer wall of the ferrule 301 interacts with the moving block 304. Because the beginning and end of the sliding groove 303 are symmetrically arranged in a straight line, the moving block 304... Block 304 moves from the beginning to the end along the track of slide 303, pushing the protective plate 404 upward during the movement. Under the push of the moving block 304, the protective plate 404 is lifted upward along the sliding track at both ends of the limiting ring 403 until it fits against the inner wall of the protective sleeve 401, forming an additional protective layer for the internal components of the protective sleeve 401, as well as the ferrule 301 and the second connector 2. This effectively disperses and buffers external forces, preventing the second connector 2 from cracking and denting due to stress, which could lead to sealing failure. At the same time, the spring 405 connected to the top of the protective plate 404 is compressed when the protective plate 404 moves upward. When the external force disappears, the spring 405 uses its own elasticity to reset the protective plate 404 back to its initial position, continuing to maintain the protective state in order to cope with the next possible impact.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A hydraulic pipe joint with a protective structure, characterized in that: The device includes a first connector (1), a second connector (2) disposed at one end of the first connector (1), a connecting component (3) disposed on the second connector (2), and a protective component (4) disposed on the connecting component (3). The connecting component (3) includes a ferrule (301) and a groove (303). The ferrule (301) is threaded onto the second connector (2). Several grooves (303) are provided on the annular outer wall of the ferrule (301). The protective component (4) includes a protective sleeve (401) and a protective plate (404). The protective sleeve (401) is fitted onto the ferrule (301), and the protective plate (404) is disposed between the protective sleeve (401) and the ferrule (301).

2. A hydraulic pipe joint with a protective structure according to claim 1, characterized in that: The sleeve (301) has an internal thread (302) that is compatible with the second connector (2).

3. A hydraulic pipe joint with a protective structure according to claim 2, characterized in that: The slides (303) are arranged in an S-shape, and the beginning and end of the slides (303) are arranged in a straight line. The slides (303) are slidably connected to the interior of the slides (303) by a number of moving blocks (304).

4. A hydraulic pipe joint with a protective structure according to claim 1, characterized in that: A rotating shaft (402) is fixedly connected inside the end of the protective sleeve (401), and a limiting ring (403) is fixedly connected inside the protective sleeve (401). The limiting ring (403) is located inside the protective sleeve (401) to form a rotating cavity.

5. A hydraulic pipe joint with a protective structure according to claim 4, characterized in that: The two ends of the limiting ring (403) are slidably connected to a plurality of protective plates (404), the plurality of protective plates (404) are located in the rotating cavity, the plurality of protective plates (404) are located above a plurality of moving blocks (304), the top of the plurality of protective plates (404) is fixedly connected to a plurality of springs (405), and the other end of the plurality of springs (405) is fixedly connected to the inner wall of the protective sleeve (401).

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