Coal mine high-pressure rubber hose connector
Through innovative design of assembly components and anti-slip components, the problems of unstable connection and poor sealing performance of high-pressure hose joints in coal mines have been solved, achieving stable connection, reliable sealing and simplified operation, thereby improving the efficiency and safety of coal mine operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHI ZETAI RUBBER & PLASTIC PRODS
- Filing Date
- 2025-06-19
- Publication Date
- 2026-04-28
AI Technical Summary
Existing high-pressure hose fittings in coal mines use traditional threaded or snap-fit connections, resulting in unstable connections, poor sealing performance, easy leakage under high pressure, and cumbersome installation and disassembly operations, which affect work efficiency.
The design incorporates a locking mechanism and anti-slip components, including a socket, plug, locking slot, locking plate, double-headed telescopic pin, and sealing ring, forming a stable locking mechanism and a double sealing structure. The friction between the hose and the connector is enhanced by protrusions, rings, and anti-slip teeth.
It achieves stable connection and reliable sealing of hose fittings, prevents leakage, simplifies installation and disassembly operations, and improves work efficiency and safety.
Smart Images

Figure CN224174742U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hose fitting technology, and in particular to a high-pressure hose fitting for coal mines. Background Technology
[0002] In coal mining operations, high-pressure hoses are key components for transmitting media such as hydraulic oil and emulsions. The reliability of their joints directly affects the efficiency and safety of coal mining. They enable the hoses to connect with various components such as coal mining equipment, conveying systems, and drainage systems, ensuring the normal operation of the entire coal mine hydraulic system.
[0003] High-pressure hose fittings for coal mines are an important component of high-pressure hoses and hydraulic hoses used in coal mines. Currently, most high-pressure hose fittings for coal mines use traditional threaded or snap-fit connections.
[0004] Existing high-pressure hose fittings for coal mines, while enabling hose connection, typically employ traditional threaded or snap-fit connections, which can easily lead to unstable connections, poor sealing performance, and leaks under high pressure. Furthermore, their installation and disassembly are cumbersome, affecting operational efficiency and making them inconvenient to use. Therefore, a new high-pressure hose fitting for coal mines is proposed to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a high-pressure hose connector for coal mines, which aims to solve the problems of unstable connection and poor sealing performance caused by traditional threaded or snap-fit connection methods in the prior art, leakage under high pressure environment, and cumbersome installation and disassembly operations that affect work efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-pressure hose connector for coal mines, comprising a first connector and a second connector, wherein an assembly assembly is provided between the first connector and the second connector;
[0007] The assembly assembly includes an assembly socket and an assembly plug. The lower surface of the assembly socket is fixedly connected to the upper surface of the first connector, and the upper surface of the assembly plug is fixedly connected to the lower surface of the second connector. The surface of the assembly socket is provided with a locking slot. A locking plate is fixedly connected to the outer surface of the assembly socket. A locking element is fixedly connected to the outer surface of the assembly plug. A double-headed telescopic latch is fixedly connected to the inner surface of the locking element. A sealing ring is fixedly fitted to the outer surface of the assembly plug. A plug-in component is fixedly connected to the end of the first connector and the second connector away from the assembly assembly. An anti-slip component is provided on the outer surface of the plug-in component.
[0008] As a further description of the above technical solution:
[0009] The locking slot has an L-shaped slot structure, and there are two locking slots, which are mirror images of each other along the central axis of the assembly socket.
[0010] As a further description of the above technical solution:
[0011] The telescopic end of the double-headed telescopic pin is movably engaged with the inner surface of the locking plate, and the inner wall of the locking plate is adapted to the outer wall size of the telescopic end of the double-headed telescopic pin.
[0012] As a further description of the above technical solution:
[0013] There are two sealing rings, and the two sealing rings are mirror images of each other along the central axis of the sealing ring.
[0014] As a further description of the above technical solution:
[0015] The anti-slip component includes a protrusion, a convex ring, and anti-slip teeth. The outer wall of the protrusion is fixedly connected to the outer surface of the connector, the inner wall of the convex ring is fixedly connected to the outer surface of the connector, and the outer wall of the anti-slip teeth is fixedly connected to the outer surface of the connector.
[0016] As a further description of the above technical solution:
[0017] The convex rings are arranged in a ring around the outer surface of the connector, and the convex rings are arranged in multiple groups at equal intervals along the length of the connector.
[0018] As a further description of the above technical solution:
[0019] The protrusions are arranged in multiple groups at equal intervals along the length of the connector.
[0020] As a further description of the above technical solution:
[0021] The anti-slip teeth are arranged in a ring along the outer surface of the connector, and multiple sets of the anti-slip teeth are evenly distributed along the length direction of the connector.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the assembly socket and the assembly plug cooperate with each other through the assembly components, and the locking part rotates and snaps together along the locking slot direction. The locking plate cooperates with the double-headed telescopic pin to form a locking mechanism to prevent the assembly plug and the assembly socket from separating. Two sealing rubber rings are set to form a double sealing structure, which further improves the sealing effect after the assembly socket and the assembly plug are snapped together. The whole forms a detachable quick-connect structure, which facilitates the safe and sealed installation and disassembly of the two-section hose joint.
[0024] 2. In this utility model, the anti-slip component utilizes the multi-angle and multi-structure design of protrusions, protruding rings and anti-slip teeth to jointly enhance the anti-slip effect, increase the friction between the hose and the connector, prevent the hose from falling off during use, and effectively resist external forces. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a high-pressure hose connector for coal mines proposed in this utility model.
[0026] Figure 2 This is a schematic diagram showing the disassembled structure of the assembly components of a high-pressure hose connector for coal mines proposed in this utility model.
[0027] Figure 3 This utility model provides a schematic diagram of the assembly components and anti-slip components at the first and second joints of a high-pressure hose connector for coal mines.
[0028] Figure 4 This is a schematic diagram of the overall cross-sectional internal structure of a high-pressure hose connector for coal mines proposed in this utility model.
[0029] Figure 5 This utility model proposes a high-pressure hose connector for coal mines. Figure 4 A magnified structural diagram of point A in the middle.
[0030] Legend:
[0031] 1. First connector; 2. Second connector; 3. Assembly component; 31. Assembly socket; 32. Assembly plug; 33. Locking slot; 34. Locking plate; 35. Locking element; 36. Double-headed telescopic pin; 37. Sealing ring; 4. Connector; 5. Anti-slip component; 51. Protrusion; 52. Protruding ring; 53. Anti-slip teeth. Detailed Implementation
[0032] 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.
[0033] Reference Figures 3-5This utility model provides an embodiment of a high-pressure hose connector for coal mines, comprising a first connector 1 and a second connector 2. The first connector 1 and the second connector 2 serve as basic components for hose connection, respectively used to connect to different hose ends to achieve hose mating. An assembly component 3 is provided between the first connector 1 and the second connector 2. The assembly component 3 plays a crucial role in connecting and fixing the first connector 1 and the second connector 2, ensuring the stability and reliability of the connector connection. The assembly component 3 includes an assembly socket 31 and an assembly plug 32. The lower surface of the assembly socket 31 is fixedly connected to the upper surface of the first connector 1, and the upper surface of the assembly plug 32 is fixedly connected to the lower surface of the second connector 2. A locking slot 33 is provided on the surface of the assembly socket 31. The locking slot 33 has an L-shaped slot structure, and there are two locking slots 33. The two locking slots 33 are mirror images of each other along the central axis of the assembly socket 31. The locking slots 33 provide a locking mechanism for subsequent locking operations. The structural foundation is an important structure for achieving a stable connection of the connector. A locking plate 34 is fixedly connected to the outer surface of the assembly socket 31, and a locking element 35 is fixedly connected to the outer surface of the assembly plug 32. A double-headed telescopic pin 36 is fixedly connected to the inner surface of the locking element 35. The telescopic end of the double-headed telescopic pin 36 is movably engaged with the inner surface of the locking plate 34. The inner wall of the locking plate 34 is adapted to the outer wall of the telescopic end of the double-headed telescopic pin 36. The locking element 35 is rotated and engaged along the structural direction of the locking slot 33, and is used by the locking plate 34 to cooperate with the double-headed telescopic pin 36 to form a locking mechanism to prevent the assembly plug 32 from separating from the assembly socket 31. A sealing ring 37 is fixedly fitted on the outer surface of the assembly plug 32. There are two sealing rings 37, and the two sealing rings 37 are mirror images of each other along the central axis of the sealing ring 37. The sealing rings 37 play a sealing role to prevent the leakage of fluid medium in the high-pressure hose of the coal mine, ensuring operational safety and efficiency.
[0034] Reference Figures 1-3Both the first connector 1 and the second connector 2 have a plug-in 4 fixedly connected to their ends away from the assembly component 3. The plug-in 4 is used for quick insertion and connection with the hose, facilitating the connection between the hose and the connector and improving installation efficiency. The outer surface of the plug-in 4 is provided with an anti-slip component 5, which increases the friction between the hose and the plug-in 4 and prevents the hose from falling off the plug-in 4 during use. The anti-slip component 5 includes a protrusion 51, a protruding ring 52, and anti-slip teeth 53. The outer wall of the protrusion 51 is fixedly connected to the outer surface of the plug-in 4. The protrusion 51 increases the contact friction with the inner wall of the hose by partially protruding, thus providing initial anti-slip effect. The inner wall of the protruding ring 52 is fixedly connected to the outer surface of the plug-in 4. The outer surface of the connector 4 is fixedly connected to the outer surface of the connector 4, and the outer wall of the anti-slip teeth 53 is fixedly connected to the outer surface of the connector 4. Multiple convex rings 52 are arranged in a ring along the outer surface of the connector 4, and multiple sets of multiple convex rings 52 are arranged at equal intervals along the length direction of the connector 4. Multiple sets of protrusions 51 are arranged at equal intervals along the length direction of the connector 4. Multiple anti-slip teeth 53 are arranged in a ring along the outer surface of the connector 4, and multiple sets of multiple anti-slip teeth 53 are arranged at equal intervals along the length direction of the connector 4. The convex rings 52 and anti-slip teeth 53 further supplement and enhance the anti-slip function. The convex rings 52 increase the contact area through the ring structure, and the anti-slip teeth 53 increase the friction through the sharp tooth structure.
[0035] Working Principle: When this high-pressure hose connector for coal mines is in operation, the first connector 1 and the second connector 2 are first connected to the ends of different hoses via the plug-in 4. The protrusions 51, protruding rings 52, and anti-slip teeth 53 on the outer surface of the plug-in 4 work together to increase the friction with the inner wall of the hose by utilizing the local protrusions, ring structure, and sharp teeth, preventing the hose from falling off. Next, the connectors are connected by aligning the locking piece 35 on the assembly plug 32 with the locking slot 33 of the assembly socket 31 and rotating it along the L-shaped slot structure. At this time, the telescopic end of the double-headed telescopic pin 36 is tightly engaged with the inner wall of the locking plate 34 under the action of the locking piece 35. Because the inner wall of the locking plate 34 and the outer wall of the telescopic end of the double-headed telescopic pin 36 are sized to match, a stable locking mechanism is formed, ensuring a secure connection between the assembly plug 32 and the assembly socket 31. The two mirror-shaped locking slots 33 ensure balanced force during connection. Meanwhile, the two mirror-shaped sealing rings 37 on the outer surface of the assembly plug 32 fit tightly against the inner wall of the assembly socket 31, forming a double sealing structure. This effectively prevents leakage of fluid media inside the high-pressure hose in the coal mine, ensuring safe and efficient operation. Through the coordinated cooperation of the above components, a stable connection and reliable sealing of the high-pressure hose joint in the coal mine can be achieved.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-pressure hose connector for coal mines, comprising a first connector (1) and a second connector (2), characterized in that: An assembly assembly (3) is provided between the first connector (1) and the second connector (2); The assembly component (3) includes an assembly socket (31) and an assembly plug (32). The lower surface of the assembly socket (31) is fixedly connected to the upper surface of the first connector (1), and the upper surface of the assembly plug (32) is fixedly connected to the lower surface of the second connector (2). The surface of the assembly socket (31) is provided with a locking slot (33). The outer surface of the assembly socket (31) is fixedly connected with a locking plate (34). The outer surface of the assembly plug (32) is fixedly connected with a locking member (35). The inner surface of the locking member (35) is fixedly connected with a double-headed telescopic latch (36). The outer surface of the assembly plug (32) is fixedly fitted with a sealing ring (37). The ends of the first connector (1) and the second connector (2) away from the assembly component (3) are both fixedly connected with plugs (4). The outer surface of the plugs (4) is provided with an anti-slip component (5).
2. The coal mine high-pressure hose connector according to claim 1, characterized in that: The locking slot (33) has an L-shaped slot structure, and there are two locking slots (33) in total. The two locking slots (33) are mirrored along the central axis of the mounting socket (31).
3. A high-pressure hose connector for coal mines according to claim 1, characterized in that: The telescopic end of the double-headed telescopic pin (36) is movably engaged with the inner surface of the locking plate (34), and the inner wall of the locking plate (34) is adapted to the outer wall size of the telescopic end of the double-headed telescopic pin (36).
4. A high-pressure hose connector for coal mines according to claim 1, characterized in that: There are two sealing rings (37), and the two sealing rings (37) are mirror images of each other along the central axis of the sealing ring (37).
5. A high-pressure hose connector for coal mines according to claim 1, characterized in that: The anti-slip component (5) includes a protrusion (51), a protruding ring (52), and anti-slip teeth (53). The outer wall of the protrusion (51) is fixedly connected to the outer surface of the connector (4), the inner wall of the protruding ring (52) is fixedly connected to the outer surface of the connector (4), and the outer wall of the anti-slip teeth (53) is fixedly connected to the outer surface of the connector (4).
6. A high-pressure hose connector for coal mines according to claim 5, characterized in that: The convex rings (52) are arranged in a ring along the outer surface of the connector (4), and the convex rings (52) are arranged in multiple groups at equal intervals along the length direction of the connector (4).
7. A high-pressure hose connector for coal mines according to claim 5, characterized in that: The protrusions (51) are arranged in multiple groups at equal intervals along the length direction of the connector (4).
8. A high-pressure hose connector for coal mines according to claim 5, characterized in that: The anti-slip teeth (53) are arranged in a ring along the outer surface of the connector (4), and the anti-slip teeth (53) are arranged in multiple groups at equal intervals along the length direction of the connector (4).