Anti-drawing hydraulic hose assembly

Abstract

The utility model discloses an anti-drawing hydraulic hose assembly which comprises a hydraulic cylinder and a hose body, an outer connector is arranged on the side wall of the hydraulic cylinder, a fixing ring is fixedly connected to the interior of the outer connector, a sliding ring is slidably connected to the interior of the outer connector, an inner connector is fixedly connected to the inner wall of the sliding ring, and an outer connector is fixedly connected to the inner wall of the inner connector. Four sliding rods distributed at equal intervals in the circumferential direction are fixedly connected to the side wall of the inner connector, the sliding rods penetrate through the fixing ring and are in sliding connection with the fixing ring, the ends, away from the sliding ring, of the multiple sliding rods are fixedly connected with fixing blocks, and the side walls of the multiple fixing blocks are elastically connected with the side wall of the fixing ring through springs. And the plurality of springs are respectively arranged on the plurality of sliding rods in a sleeving manner. The anti-pulling hose is reasonable in structure, through the arrangement of the sliding ring, the fixed ring and the sliding rod, under the action of the spring, the hose body is buffered, the situation that a connector or the hose body is damaged during pulling due to rigid connection is avoided, and the anti-pulling performance of the hose body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical field especially relates to a kind of hydraulic hose assembly of anti-pulling. BACKGROUND

[0002] Hydraulic hose assembly is widely used in engineering machinery, mining machinery, metallurgical machinery and other fields, for conveying hydraulic oil, existing hydraulic hose assembly is usually composed of hose, joint and sealing element, is connected by screw thread mode.

[0003] However, in actual use, hydraulic hose assembly often bears greater axial tension, is prone to hydraulic hose fracture or joint damage, resulting in hydraulic oil leakage, even cause safety accident, therefore the utility model proposes a kind of hydraulic hose assembly of anti-pulling, solves the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a kind of hydraulic hose assembly of anti-pulling.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of hydraulic hose assembly of anti-pulling, including hydraulic cylinder and hose main body, the side wall of the hydraulic cylinder is provided with outer joint, the inside of the outer joint is fixedly connected with fixed ring, the outer joint is slidably connected with sliding ring, the inner wall of the sliding ring is fixedly connected with inner joint, the side wall of the inner joint is fixedly connected with four sliding rods that are circumferentially equidistantly distributed, the sliding rod passes through fixed ring and is slidably connected with it, the end of the plurality of sliding rods away from sliding ring is fixedly connected with fixed block, the side wall between the plurality of fixed blocks and the side wall of fixed ring is elastically connected by spring, and the plurality of springs are respectively sleeved on the plurality of sliding rods.

[0007] Preferably, the outer wall of the sliding ring is sleeved with sealing ring, and the sealing ring cooperates with the outer joint.

[0008] Preferably, the inner wall of the end of the inner joint close to the hose main body is provided with internal thread.

[0009] Preferably, the end of the hose main body close to the outer joint is provided with inner fitting joint, and the outer wall of the inner fitting joint is provided with external thread matched with the internal thread.

[0010] Preferably, the material of the hose main body is nitrile rubber, and the inner wall of the hose main body is provided with anticorrosive paint.

[0011] Preferably, the material of the sealing ring is hydrogenated nitrile rubber, and the sealing ring is designed as circular ring.

[0012] Compared with the prior art, the utility model has the advantages of

[0013] 1、 Through setting up sliding ring, fixed ring and sliding rod, when the hose body is pulled, make the inner fitting joint move, can drive sliding ring and inner joint move, the movement of sliding ring can drive sliding rod move, make fixed block move, can stretch spring, realize buffering to hose body, avoid rigid connection, cause damage when pulling, interface or hose body, improve the anti-pulling performance of hose body.

[0014] 2、 Through setting up inner joint and inner fitting joint, when the hose body needs to be replaced for long time use, the hose body can be pulled to drive the inner joint to move to the outer joint, so that the inner fitting joint is exposed to the outer joint, at this time, the inner fitting joint can be rotated, so that the inner thread and the outer thread are separated, so that the inner joint and the inner fitting joint are separated, after replacing the hose body, the inner joint is loosened, so that the hose body is reset, which is convenient for quick disassembly and assembly of the hose body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective view of the hydraulic hose assembly of the utility model is provided;

[0016] Figure 2 A right side view perspective view of the hydraulic hose assembly of the utility model is provided;

[0017] Figure 3 A cross-sectional front view of the hydraulic hose assembly of the utility model is provided;

[0018] Figure 4 A structure enlarged view of A in Figure 2

[0019] Figure 5 A structure enlarged view of B in Figure 3

[0020] In the drawing: 1 hydraulic cylinder, 2 outer joint, 3 hose body, 4 inner joint, 5 outer thread, 6 inner fitting joint, 7 sliding ring, 8 sealing ring, 9 fixed ring, 10 spring, 11 fixed block, 12 inner thread, 13 sliding rod. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from the description, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific implementation.​​

[0022] Reference Figures 1-5 A pull-out resistant hydraulic hose assembly includes a hydraulic cylinder 1 and a hose body 3. An external connector 2 is provided on the side wall of the hydraulic cylinder 1. A fixing ring 9 is fixedly connected inside the external connector 2. A sliding ring 7 is slidably connected inside the external connector 2. An internal connector 4 is fixedly connected to the inner wall of the sliding ring 7. Four sliding rods 13 distributed circumferentially at equal intervals are fixedly connected to the side wall of the internal connector 4. The sliding rods 13 pass through the fixing ring 9 and are slidably connected to it. A fixing block 11 is fixedly connected to the end of each sliding rod 13 away from the sliding ring 7. The side walls of the fixing blocks 11 and the side walls of the fixing ring 9 are elastically connected by springs 10. The springs are respectively sleeved on the sliding rods 13.

[0023] In this utility model, a sealing ring 8 is fitted on the outer wall of the sliding ring 7. The sealing ring 8 cooperates with the outer connector 2. The sealing ring 8 is made of hydrogenated nitrile rubber and has a circular design. Hydrogenated nitrile rubber has the characteristics of oil resistance, heat resistance and wear resistance, and is suitable for high temperature and high pressure environments.

[0024] In this utility model, the inner wall of the inner connector 4 near the hose body 3 is provided with an internal thread 12, the hose body 3 near the outer connector 2 is provided with an inner mating connector 6, and the outer wall of the inner mating connector 6 is provided with an external thread 5 that mates with the internal thread 12.

[0025] In this utility model, the material of the hose body 3 is nitrile rubber, and the inner wall of the hose body 3 is provided with an anti-corrosion coating. Nitrile rubber has excellent oil resistance and is suitable for hydraulic oil transportation. The anti-corrosion coating is epoxy resin.

[0026] When this utility model is in use, when the hose body 3 is pulled, the inner mating joint 6 moves, which in turn moves the sliding ring 7 and the inner joint 4. The movement of the sliding ring 7 moves the sliding rod 13, which in turn moves the fixing block 11, which stretches the spring 10. This buffers the hose body 3, preventing a rigid connection and damage to the interface or hose body 3 during pulling, thus improving the tensile strength of the hose body 3. When the hose body 3 needs to be replaced after long-term use, the hose body 3 can be pulled to move the inner joint 4 outside the outer joint 2, exposing the inner mating joint 6 to the outer joint 2. At this time, the inner mating joint 6 can be rotated to separate the inner thread 12 from the outer thread 5, thus separating the inner joint 4 from the inner mating joint 6. After replacing the hose body 3, the inner joint 4 can be loosened to reset the hose body 3, facilitating quick disassembly and assembly of the hose body 3.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pull-out resistant hydraulic hose assembly, comprising a hydraulic cylinder (1) and a hose body (3), characterized in that, An external connector (2) is provided on the side wall of the hydraulic cylinder (1). A fixed ring (9) is fixedly connected inside the external connector (2). A sliding ring (7) is slidably connected inside the external connector (2). An internal connector (4) is fixedly connected on the inner wall of the sliding ring (7). Four sliding rods (13) are fixedly connected on the side wall of the internal connector (4) at equal intervals in the circumferential direction. The sliding rods (13) pass through the fixed ring (9) and are slidably connected to it. A fixed block (11) is fixedly connected to the end of each sliding rod (13) away from the sliding ring (7). The side walls of the multiple fixed blocks (11) are elastically connected to the side walls of the fixed ring (9) through springs (10). The multiple springs are respectively sleeved on the multiple sliding rods (13).

2. The pull-out resistant hydraulic hose assembly according to claim 1, characterized in that, A sealing ring (8) is fitted on the outer wall of the sliding ring (7), and the sealing ring (8) cooperates with the outer connector (2).

3. A pull-out resistant hydraulic hose assembly according to claim 2, characterized in that, The inner connector (4) has an internal thread (12) on the inner wall of the end near the hose body (3).

4. A pull-out resistant hydraulic hose assembly according to claim 3, characterized in that, The hose body (3) is provided with an inner mating joint (6) at one end near the outer connector (2), and the outer wall of the inner mating joint (6) is provided with an outer thread (5) that mates with the inner thread (12).

5. A pull-out resistant hydraulic hose assembly according to claim 4, characterized in that, The hose body (3) is made of nitrile rubber, and the inner wall of the hose body (3) is provided with an anti-corrosion coating.

6. A pull-out resistant hydraulic hose assembly according to claim 5, characterized in that, The sealing ring (8) is made of hydrogenated nitrile rubber and has a circular design.

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