High-pressure anti-static hydraulic rubber hose connecting structure
The snap-fit connection structure of the connector and plug solves the problem of cumbersome disassembly of existing high-pressure anti-static hydraulic rubber hoses, enabling quick connection and disassembly, and enhancing sealing and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI CONGXIN HYDRAULIC TECH GRP CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-14
AI Technical Summary
The existing threaded connection structure of high-pressure antistatic hydraulic rubber hoses is cumbersome to disassemble, making it difficult to use in confined spaces or dense pipeline scenarios. Furthermore, the threads are prone to corrosion and deformation, which increases the difficulty of disassembly and maintenance.
It adopts a snap-fit connection structure of connectors and plugs, combined with flexible connection and sealing ring design, to achieve quick fixing and disassembly, and enhance sealing performance.
It enables quick connection and disconnection of high-pressure hydraulic rubber hoses, improving maintenance efficiency and enhancing sealing and durability.
Smart Images

Figure CN224497880U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of high-pressure antistatic hydraulic rubber hoses, specifically relating to a connection structure for high-pressure antistatic hydraulic rubber hoses. Background Technology
[0002] In modern industry, high-pressure anti-static hydraulic rubber hose connection structures play a crucial role. As a core pipeline connection component for transmitting high-pressure liquids or gases, its importance is self-evident. In many industrial production scenarios, hydraulic systems often need to operate stably under harsh conditions of high pressure and high temperature. This requires the matching hose connection structure to have excellent pressure resistance and high temperature resistance to ensure the normal operation of the system.
[0003] Existing high-pressure antistatic hydraulic rubber hoses generally use multiple bolts or threaded joints to connect and fix two sections of hose. However, the two ends of the threaded connection need to be disassembled with tools such as wrenches, which is cumbersome and not conducive to operation in confined spaces or dense pipeline scenarios. Furthermore, after long-term use, the threads may "seize" due to corrosion and deformation, which further increases the difficulty of disassembly and maintenance. Utility Model Content
[0004] The purpose of this utility model is to provide a connection structure for a high-pressure antistatic hydraulic rubber hose, which aims to solve the problem that existing high-pressure antistatic hydraulic rubber hoses generally use multiple bolts or threaded joints to connect and fix two sections of hose. However, when disassembling the two ends of the threaded connection, tools such as wrenches are required, which is cumbersome and not conducive to operation in confined spaces or dense pipeline scenarios. Furthermore, after long-term use, the threads may "seize" due to corrosion and deformation, further increasing the difficulty of disassembly and maintenance.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure antistatic hydraulic rubber hose connection structure, comprising a first hose, a connector connected to the surface of the first hose, a spring connected to the annular groove surface of the connector, the other side surface of the spring connected to the inner wall of a sleeve, the surface of the sleeve movably fitted onto the annular groove surface of the connector, a limiting groove annularly formed on the surface of the connector away from the spring, a movable ball movably fitted onto the surface of the limiting groove, the other side surface of the movable ball movably fitted into a slot formed on the surface of a plug, a top block connected to the surface of the plug adjacent to the slot, the surface of the top block slidably connected to the surface of a trapezoidal groove, the trapezoidal groove being formed at the open end of the inner wall of the sleeve away from the spring, a second hose connected to one side surface of the plug, a first sealing ring adhered to the other side surface of the plug, a second sealing ring movably fitted onto the inner wall surface of the first sealing ring, and the surface of the second sealing ring connected to the inner wall of the connector.
[0006] As a preferred embodiment of the high-pressure antistatic hydraulic rubber hose connection structure of this utility model, the connector, spring and sleeve form an elastic connection structure.
[0007] As a preferred embodiment of the high-pressure antistatic hydraulic rubber hose connection structure of this utility model, the six sets of limiting grooves and movable balls are distributed at equal intervals in an annular shape on the surface of the connector.
[0008] As a preferred embodiment of the high-pressure antistatic hydraulic rubber hose connection structure of this utility model, the trapezoidal groove shape and size are adapted to the top block, and the six sets of the slots and top blocks are distributed in a ring on the surface of the connector.
[0009] As a preferred embodiment of the high-pressure antistatic hydraulic rubber hose connection structure of this utility model, the movable ball, the plug, the slot and the top block form a movable interlocking connection structure.
[0010] As a preferred embodiment of the high-pressure antistatic hydraulic rubber hose connection structure of this utility model, both the first sealing ring and the second sealing ring have a "T" shaped cross-section, and the shape and size of the through groove on the inner wall of the first sealing ring are adapted to the surface of the second sealing ring.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] The connector and plug between the two hose sections are interlocked, which can quickly fix the connection between the two hose sections, thereby improving the efficiency of maintenance when disassembly and maintenance are required. At the same time, the first and second sealing rings between the connector and plug are interlocked, so that the two work together to provide three-dimensional protection. The second sealing ring fills the gap by compression deformation, and the first sealing ring forms a secondary seal by the tight contact between the two, which enhances the sealing performance between the two hose sections. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model;
[0016] Figure 3 This is an exploded structural diagram of the connector and plug portion of this utility model;
[0017] Figure 4This is a cross-sectional structural diagram of the connector part of this utility model.
[0018] In the figure: 1. First hose; 2. Connector; 3. Spring; 4. Sleeve; 5. Limiting groove; 6. Moving ball; 7. Plug; 8. Slot; 9. Top block; 10. Trapezoidal groove; 11. Second hose; 12. First sealing ring; 13. Second sealing ring. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1-4 This utility model provides the following technical solution: a high-pressure antistatic hydraulic rubber hose connection structure, including a first hose 1, a connector 2 connected to the surface of the first hose 1, a spring 3 connected to the annular groove surface of the connector 2, the other side surface of the spring 3 connected to the inner wall of the sleeve 4, the surface of the sleeve 4 movably sleeved on the annular groove surface of the connector 2, a limiting groove 5 annularly opened on the surface of the connector 2 away from the spring 3, a movable ball 6 movably sleeved on the surface of the limiting groove 5, the other side surface of the movable ball 6 movably fitted into a slot 8 opened on the surface of the plug 7, a top block 9 connected to the surface of the plug 7 located beside the slot 8, the surface of the top block 9 slidably connected to the surface of the trapezoidal groove 10, the surface of the trapezoidal groove 10 opened at the open end of the inner wall of the sleeve 4 away from the spring 3, a second hose 11 connected to one side surface of the plug 7, a first sealing ring 12 bonded to the other side surface of the plug 7, a second sealing ring 13 movably sleeved on the inner wall surface of the first sealing ring 12, and the surface of the second sealing ring 13 connected to the inner wall of the connector 2.
[0021] In use: The first hose 1 and the first sealing ring 12 in this design are both existing Italian Manuli Rockmaster series hydraulic hoses. Their outer layer is "SD" type high wear-resistant, ozone-resistant, weather-resistant, antistatic, and high-temperature resistant synthetic rubber. It has the characteristics of antistatic and anti-toxic corrosion properties, and is suitable for high-pressure hydraulic systems. Different specifications and models are available to meet different pressure levels such as ultra-high pressure and medium-high pressure.
[0022] Preferably, the connector 2, spring 3, and sleeve 4 form an elastic connection structure.
[0023] In practical use, when connecting or disconnecting connector 2 and plug 7, the connection between the two can be fixed by moving the sleeve 4 that is elastically connected to connector 2, or the parts that are locked together can be separated.
[0024] Preferably, six sets of limiting grooves 5 and moving balls 6 are distributed in a ring at equal intervals on the surface of the connector 2.
[0025] In practical use, the six sets of limiting grooves 5 on the surface of the connector 2 are used to facilitate the movable ball 6 to be inserted and fixed by moving the ball 6.
[0026] Preferably, the trapezoidal groove 10 is adapted to the shape and size of the top block 9, and six sets of slots 8 and top blocks 9 are distributed in a ring on the surface of the connector 7.
[0027] In practical use, the sleeve 4, which is elastically fitted onto the surface of the connector 2, is pushed so that the trapezoidal groove 10 on its surface can abut against the surface of the movable ball 6. This makes it easier to pull out the plug 7 inserted into the connector 2. The movable ball 6, which is engaged in the slot 8, can be pushed into the trapezoidal groove 10 by the top block 9, thereby separating the connector 2 and the plug 7 that are engaged together.
[0028] Preferably, the movable ball 6, the plug connector 7, the slot 8, and the top block 9 form a movable interlocking connection structure.
[0029] In practical use, the sleeve 4, which is fitted onto the surface of the connector 2, moves toward the plug 7 under the rebound of the spring 3. This causes the movable ball 6, which is abutted by the trapezoidal groove 10 on the inner wall of the sleeve 4, to move again toward the plug 7 under the push of the sleeve 4 and fit into the slot 8, thereby fixing the connection between the connector 2 and the plug 7.
[0030] Preferably, both the first sealing ring 12 and the second sealing ring 13 have a "T" shaped cross-section, and the shape and size of the through groove on the inner wall of the first sealing ring 12 are adapted to the surface of the second sealing ring 13.
[0031] In practical use, the second sealing ring 13 is inserted into the inner wall of the first sealing ring 12 bonded to the side of the connector 7 near the first hose 1, thereby filling the gap at the intersection of the connector 2 and the connector 7 and ensuring the sealing of the connection between the first hose 1 and the second hose 11.
[0032] Working Principle: In applications requiring the transmission of high-pressure hydraulic fluid and where electrostatic risks exist, a first hose 1 and a second hose 11, respectively connected to two actuators, are used to ensure coordinated operation of the two actuators. Both the first hose 1 and the second hose 11 are composite rubber tubes made of high-pressure resistant and anti-static material. When the first hose 1 and the second hose 11 need to be connected and fixed, the sleeve 4, elastically fitted onto the annular groove surface of the connector 2, is pulled towards the first hose 1. Then, the connector 7 connected to one side of the second hose 11 is inserted into the connector 2. As the connector 7 is inserted into the connector 2, the annularly distributed top blocks 9 on the surface of the connector 7 abut against the surface of the movable ball 6, which is movably fitted onto the surface of the connector 2. As the movable ball 6 is continuously pushed towards the other side, it can be pushed into the trapezoidal groove 10 and limited by the sleeve 4, preventing it from being squeezed out. After the top blocks 9 push the movable ball 6, the connector 7 is further inserted into the inner wall of the connector 2. When the sleeve 4, which is fitted onto the surface of connector 2, moves toward connector 7 under the rebound of spring 3, the movable ball 6, which is abutted against by trapezoidal groove 10, moves again toward connector 7 under the push of sleeve 4 and fits into slot 8, thus fixing the connection between connector 2 and connector 7. At the same time, the second sealing ring 13 is inserted into the inner wall of the first sealing ring 12 bonded to the side of connector 7 near the first hose 1, thereby filling the gap at the intersection of connector 2 and connector 7 and ensuring the sealing of the connection between the first hose 1 and the second hose 11. When it is necessary to disassemble the connected first hose 1 and second hose 11 for maintenance, the above operation is repeated. The sleeve 4, which is elastically fitted onto the surface of connector 2, is pushed toward the first hose 1, so that connector 7 inserted into connector 2 can be easily pulled out. The movable ball 6 on slot 8 can be pushed into trapezoidal groove 10 by top block 9, so that connector 7 can be easily pulled out and the connected first hose 1 and second hose 11 can be disassembled.
[0033] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high-pressure antistatic hydraulic rubber hose connection structure, comprising a first hose (1), characterized in that: The first flexible tube (1) is connected to a connector (2). A spring (3) is connected to the annular groove of the connector (2). The other side of the spring (3) is connected to the inner wall of the sleeve (4). The surface of the sleeve (4) is movably fitted onto the annular groove of the connector (2). A limiting groove (5) is annularly opened on the side of the connector (2) away from the spring (3). A movable ball (6) is movably fitted onto the surface of the limiting groove (5). The other side of the movable ball (6) is movably fitted into the slot (8) opened on the surface of the plug (7). The surface of the head (7) is connected to the top block (9) on the side surface next to the slot (8). The surface of the top block (9) is slidably connected to the surface of the trapezoidal groove (10). The surface of the trapezoidal groove (10) is opened at the end of the inner wall of the sleeve (4) away from the spring (3). The surface of one side of the connector (7) is connected to the second hose (11). The surface of the other side of the connector (7) is bonded to the first sealing ring (12). The inner wall surface of the first sealing ring (12) is movably fitted with the second sealing ring (13). The surface of the second sealing ring (13) is connected to the inner wall of the connector (2).
2. The high-pressure antistatic hydraulic rubber hose connection structure according to claim 1, characterized in that: The connector (2), spring (3) and sleeve (4) form an elastic connection structure.
3. The high-pressure antistatic hydraulic rubber hose connection structure according to claim 2, characterized in that: The six sets of limiting grooves (5) and moving balls (6) are distributed in an annular shape at equal intervals on the surface of the connector (2).
4. The high-pressure antistatic hydraulic rubber hose connection structure according to claim 1, characterized in that: The trapezoidal groove (10) is adapted to the top block (9) in shape and size, and the six sets of slots (8) and top blocks (9) are distributed in a ring on the surface of the connector (7).
5. The high-pressure antistatic hydraulic rubber hose connection structure according to claim 4, characterized in that: The movable ball (6), the connector (7), the slot (8), and the top block (9) form a movable interlocking connection structure.
6. The high-pressure antistatic hydraulic rubber hose connection structure according to claim 1, characterized in that: The first sealing ring (12) and the second sealing ring (13) both have a "T" shaped cross-section, and the shape and size of the through groove on the inner wall of the first sealing ring (12) are adapted to the surface of the second sealing ring (13).