Novel hydraulic rubber hose connector

By designing a hydraulic hose connector with a high-strength alloy steel pipe body and a locking structure, the problem of loosening of traditional connectors has been solved, achieving stable connection and convenient disassembly, thus improving the reliability and efficiency of the connection.

CN224150398UActive Publication Date: 2026-04-21NORTHWESTERN POLYTECHNICAL UNIV MING DE COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV MING DE COLLEGE
Filing Date
2025-06-16
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional hydraulic hose fittings are prone to loosening under long-term working vibration and pressure changes, resulting in unstable connections, time-consuming repairs, and huge economic losses.

Method used

A novel hydraulic hose connector has been designed, which uses a high-strength alloy steel pipe body, a limiting ring, an internal threaded rod, and a locking structure. Through the cooperation of the limiting ring and the internal threaded rod, combined with the spring and sliding block of the locking structure, a stable connection and anti-loosening are achieved.

Benefits of technology

This achieves a stable connection of the hydraulic hose, preventing loosening and detachment, improving connection reliability and disassembly efficiency, and reducing maintenance time and economic losses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a novel hydraulic rubber hose connector which comprises a hose body, two limiting rings are arranged in the hose body, a built-in threaded rod is arranged on the outer surface of the hose body, the bottom of the built-in threaded rod is fixedly connected with a fixed arc block, the fixed arc block extrudes a hydraulic rubber hose, and connecting pipe sleeves are arranged at the two ends of the hose body. A sealing gasket is arranged in the pipe body, and the top of the connecting pipe sleeve is fixedly connected with a hexagonal wrench. The pipe body is arranged to be connected with the hydraulic rubber pipe, one end of the hydraulic rubber pipe penetrates through the connecting pipe sleeve to be led into the pipe body, when the top end of the hydraulic rubber pipe makes contact with the limiting ring, the internal threaded rod starts to be screwed through a hexagon wrench, and then the fixing arcs on the two sides get close to each other to extrude the hydraulic rubber pipe so that the hydraulic rubber pipe can be stably fixed; the threads on the inner wall of the connecting pipe sleeve are matched with the threads on the outer wall of the pipe body, a wrench is clamped on the hexagonal wrench at the top of the connecting pipe sleeve for sealing work, and sealing is completed when the bottom is screwed to touch the sealing gasket in the connecting pipe sleeve.
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Description

Technical Field

[0001] This utility model relates to the field of hose fitting technology, specifically a novel hydraulic hose fitting. Background Technology

[0002] In the industrial production field, hydraulic systems are widely used in various mechanical equipment. As an indispensable component of the hydraulic system, hydraulic hoses are responsible for transmitting high-pressure liquids to ensure the normal operation of the equipment. However, traditional hydraulic hose fittings have revealed many problems in actual use.

[0003] Due to prolonged working vibrations and pressure changes, traditional hose fitting fixing methods gradually fail, unable to withstand the tension and pressure on the hose, easily causing loosening. Each failure not only requires a lot of time and manpower for repair, but also causes huge economic losses. Therefore, a new type of hydraulic hose that can effectively prevent hose slippage and is easy to disassemble is needed to provide a more reliable and efficient connection solution for industrial production. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel hydraulic hose connector, which has advantages such as good sealing performance, stable hydraulic hose connection, and convenient disassembly, thus solving the problems of long-term detachment and low replacement efficiency of traditional hydraulic hose connectors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel hydraulic hose connector, comprising a pipe body, two limiting rings inside the pipe body, an internal threaded rod on the outer surface of the pipe body, a fixed arc block fixedly connected to the bottom of the internal threaded rod, the fixed arc block extruding the hydraulic hose, connecting sleeves at both ends of the pipe body, a sealing gasket inside the pipe body, a hexagonal wrench fixedly connected to the top of the connecting sleeve, and a locking structure on the outer surface of the connecting sleeve;

[0006] The locking structure includes a cylinder with a sliding groove on its outer surface, a connecting post inside the cylinder, a spring on the bottom outer surface of the connecting post, a sliding block fixedly connected to the upper outer surface of the connecting post, and a handle fixedly connected to the top of the connecting post.

[0007] Furthermore, the connecting sleeve is in the shape of a hollow cylinder, and its inner diameter is precisely matched with the outer diameter of the tube body. The inner wall of the connecting sleeve is provided with high-precision threads.

[0008] Furthermore, the tube body is a hollow cylinder made of high-strength alloy steel, and the outer walls at both ends are provided with high-precision threads. The threads on the outer wall of the tube body and the threads on the inner wall of the connecting sleeve can be tightly rotated together.

[0009] Furthermore, the outer wall of the tube has four through threaded holes symmetrically arranged in pairs, and there are four built-in threaded rods. The threads of the built-in threaded rods are respectively matched with the threaded holes on the outer wall of the tube. The top of the built-in threaded rod is an embedded hexagon. The built-in threaded rod passes through the outer wall of the tube and is fixedly connected to the fixed arc block.

[0010] Furthermore, the hexagonal wrench has a hollow cylindrical shape in the middle, and its inner diameter is precisely matched with the outer diameter of the hydraulic hose.

[0011] Furthermore, the bottom of the spring is fixedly connected to the bottom of the connecting column, the top of the spring is fixedly connected to the bottom of the cylinder, the sliding groove penetrates the outer wall of the cylinder, the sliding block is cylindrical in shape, its diameter is the same as the diameter of the sliding groove and fits tightly therewith, and the sliding block moves inside the sliding groove.

[0012] Furthermore, the limiting ring has two symmetrical rings along the center of the front view of the tube body, and the sealing gasket is made of oil-resistant and high-pressure-resistant nitrile rubber material.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. This new type of hydraulic hose connector connects to a hydraulic hose via a hose body. One end of the hydraulic hose passes through a connecting sleeve and enters the hose body. When the top of the hydraulic hose touches the limiting ring, a hex wrench is used to turn the internal threaded rod. The fixed arcs on both sides inside the hose body are fixedly connected to the bottom of the internal threaded rod. Then, the fixed arcs on both sides move closer to each other, squeezing the hydraulic hose to keep it stable and fixed. This makes the threads on the inner wall of the connecting sleeve and the threads on the outer wall of the hose body fit together. A wrench is used to lock the hexagonal wrench at the top of the connecting sleeve for sealing. The seal is completed when the bottom touches the sealing gasket inside the connecting sleeve.

[0015] 2. This new type of hydraulic hose connector prevents the hydraulic hose from falling off by setting a locking structure. The sliding block is fixedly connected to the outer surface of the connecting column, and the handle is fixed to the top of the connecting column. When the handle is turned, the sliding block moves downward along the sliding groove. At this time, the connecting column also moves downward, driving the spring force downward. The bottom of the connecting column is directly opposite the top of the built-in threaded rod. The connecting column presses down to fix the built-in threaded rod, further preventing the connector from loosening due to vibration during long-term use, which could cause the hydraulic hose to loosen and fall off. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the explosion of this utility model;

[0018] Figure 3 This is a planed diagram of the tube body of this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting pipe sleeve of this utility model.

[0020] In the diagram: 1. Pipe body; 2. Connecting sleeve; 3. Hydraulic hose; 4. Locking structure; 401. Cylinder; 402. Sliding groove; 403. Connecting column; 404. Spring; 405. Handle; 406. Sliding block; 5. Internal threaded rod; 6. Limiting ring; 7. Fixing arc block; 8. Sealing gasket; 9. Hexagonal wrench. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 The novel hydraulic hose connector in this embodiment includes a tube body 1. The tube body 1 is a hollow cylinder made of high-strength alloy steel. After precision machining and heat treatment, it has good strength and toughness. The outer walls at both ends are provided with high-precision threads. The tube body 1 is provided with two limiting rings 6 inside for limiting the hydraulic hose 3. The limiting rings 6 are symmetrical about the center of the front view of the tube body 1.

[0023] The outer surface of the tube body 1 is provided with an internal threaded rod 5. The bottom of the internal threaded rod 5 is fixedly connected to a fixed arc block 7. The arc block 7 is made of rust-proof and oil-proof stainless steel. The arc block 7 is used to compress the hydraulic hose 3. The outer wall of the tube body 1 is provided with four through threaded holes, which are symmetrical in pairs. There are four internal threaded rods 5. The threads of the internal threaded rods 5 are respectively matched with the threaded holes on the outer wall of the tube body 1. The top of the internal threaded rod 5 is an embedded hexagon. The internal threaded rod 5 passes through the outer wall of the tube body 1 and is fixedly connected to the fixed arc block 7. The internal threaded rod 5 can be rotated with a standard Allen wrench to move into the tube body 1 to compress the hydraulic hose 3.

[0024] The tube body 1 has connecting sleeves 2 at both ends. The connecting sleeves 2 are hollow cylinders with their inner diameter precisely matching the outer diameter of the tube body 1. The inner wall of the connecting sleeves 2 has high-precision threads, and the threads on the outer wall of the tube body 1 and the inner wall of the connecting sleeves 2 can be tightly rotated together. The tube body 1 has a sealing gasket 8 inside. The sealing gasket 8 is made of oil-resistant and high-pressure-resistant nitrile rubber material with good elasticity and sealing performance. A hexagonal wrench 9 is fixedly connected to the top of the connecting sleeves 2 for easy tightening and loosening operations. The hexagonal wrench 9 is hollow cylinder in the middle, and its inner diameter precisely matches the outer diameter of the hydraulic hose 3 for passing through the hydraulic hose 3.

[0025] The outer surface of the connecting sleeve 2 is provided with a locking structure 4, which includes a cylinder 401. The bottom of the cylinder 401 is fixedly connected to the outer surface of the connecting sleeve 2. The outer surface of the cylinder 401 is provided with a sliding groove 402, which penetrates the outer wall of the cylinder 401. The cylinder 401 is provided with a connecting post 403 inside. The bottom outer surface of the connecting post 403 is provided with a spring 404. The bottom of the spring 404 is fixedly connected to the bottom of the connecting post 403, and the top of the spring 404 is fixedly connected to the bottom of the cylinder 401. The upper half of the outer surface of the connecting post 403 is fixedly connected to a sliding block 406. The sliding block 406 is cylindrical in shape, and its diameter is the same as the diameter of the sliding groove 402, which fits tightly with it. The sliding block 406 moves inside the sliding groove 402. The top of the connecting post 403 is fixedly connected to a handle 405.

[0026] The sliding block 406 is fixedly connected to the outer surface of the connecting post 403, and the handle 405 is fixed to the top of the connecting post 403. When the handle 405 is rotated, the sliding block 406 moves downward along the sliding groove 402. At this time, the connecting post 403 also moves downward, driving the spring 404 to exert downward force. The bottom of the connecting post 403 is directly opposite the top of the built-in threaded rod 5. The connecting post 403 presses down to fix the built-in threaded rod 5, further preventing the connector from loosening due to vibration during long-term use, which could cause the hydraulic hose 3 to loosen and fall off.

[0027] When implementing this procedure, please follow these steps:

[0028] 1) First insert the hydraulic hose 3, then insert one end of the hydraulic hose 3 through the two connecting sleeves 2 into the pipe body 1, ensuring that the hydraulic hose 3 touches the limit ring 6.

[0029] 2) Then tighten the built-in threaded rod 5 inside the tube body 1 to make the fixed arc block 7 move inward to squeeze the hydraulic hose 3 for initial fixation. Use a wrench to turn the hexagonal wrench 9 to make the built-in thread of the tube body 1 and the external thread of the connecting sleeve 2 engage and lock together, and touch the sealing gasket 8 at the bottom of the connecting sleeve 2 to complete the seal.

[0030] 3) Finally, turn the handle 405. At this time, the connecting post 403 also moves downward, which drives the spring 404 downward. The bottom of the connecting post 403 is directly facing the top of the built-in threaded rod 5. The connecting post 403 presses down to fix the built-in threaded rod 5, and the connection is completed by further fixing.

[0031] In summary, by connecting the hydraulic hose 3 to the pipe body 1, one end of the hydraulic hose 3 is passed through the connecting sleeve 2 and inserted into the pipe body 1. When the top of the hydraulic hose 3 touches the limiting ring 6, the internal threaded rod 5 is turned with a hex wrench. The fixing arcs 7 on both sides inside the pipe body 1 are fixedly connected to the bottom of the internal threaded rod 5. Then, the fixing arcs 7 on both sides move closer to each other and squeeze the hydraulic hose 3 to keep it stable and fixed. This makes the threads on the inner wall of the connecting sleeve 2 and the threads on the outer wall of the pipe body 1 fit together. The wrench is then used to lock the hexagonal wrench 9 at the top of the connecting sleeve 2 to perform the sealing work. The hose is turned until the bottom touches the seal inside the connecting sleeve 2. After the gasket 8 is sealed, the locking structure 4 is set to prevent the hydraulic hose 3 from falling off. The sliding block 406 is fixedly connected to the outer surface of the connecting post 403, and the handle 405 is fixed to the top of the connecting post 403. When the handle 405 is rotated, the sliding block 406 moves downward along the sliding groove 402. At this time, the connecting post 403 also moves downward, driving the spring 404 to exert downward force. The bottom of the connecting post 403 is directly facing the top of the built-in threaded rod 5. The connecting post 403 presses down to fix the built-in threaded rod 5, further preventing the connector from loosening due to vibration during long-term use, which could cause the hydraulic hose 3 to loosen and fall off.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of hydraulic hose joint comprising a hose body (1), characterized in that: The tube body (1) is provided with two limiting rings (6) inside, and the tube body (1) is provided with an internal threaded rod (5) on the outer surface. The bottom of the internal threaded rod (5) is fixedly connected to a fixed arc block (7). The fixed arc block (7) squeezes the hydraulic hose (3). The tube body (1) is provided with connecting sleeves (2) at both ends. The tube body (1) is provided with a sealing gasket (8) inside. The top of the connecting sleeve (2) is fixedly connected to a hexagonal wrench (9). The outer surface of the connecting sleeve (2) is provided with a locking structure (4). The locking structure (4) includes a cylinder (401), the outer surface of the cylinder (401) is provided with a sliding groove (402), the inside of the cylinder (401) is provided with a connecting post (403), the bottom outer surface of the connecting post (403) is provided with a spring (404), the upper half of the outer surface of the connecting post (403) is fixedly connected with a sliding block (406), and the top of the connecting post (403) is fixedly connected with a handle (405).

2. A new type of hydraulic hose joint according to claim 1, characterized in that: The connecting sleeve (2) is in the shape of a hollow cylinder, and its inner diameter is precisely matched with the outer diameter of the tube body (1). The inner wall of the connecting sleeve (2) is provided with high-precision threads.

3. A new type of hydraulic hose joint according to claim 1, characterized in that: The tube body (1) is a hollow cylinder made of high-strength alloy steel, and the outer walls at both ends are provided with high-precision threads. The outer wall threads of the tube body (1) and the inner wall threads of the connecting sleeve (2) can be tightly rotated together.

4. A new type of hydraulic hose joint according to claim 1, characterized in that: The outer wall of the tube body (1) is provided with four through threaded holes symmetrically arranged in pairs. There are four built-in threaded rods (5). The threads of the built-in threaded rods (5) are respectively matched with the threaded holes on the outer wall of the tube body (1). The top of the built-in threaded rods (5) is an embedded hexagon. The built-in threaded rods (5) penetrate the outer wall of the tube body (1) and are fixedly connected to the fixed arc block (7).

5. A new type of hydraulic hose joint according to claim 1, characterized in that: The hexagonal wrench (9) has a hollow cylindrical shape in the middle, and its inner diameter is precisely matched with the outer diameter of the hydraulic hose (3).

6. A new type of hydraulic hose joint according to claim 1, characterized in that: The bottom of the spring (404) is fixedly connected to the bottom of the connecting column (403), and the top of the spring (404) is fixedly connected to the bottom of the cylinder (401). The sliding groove (402) penetrates the outer wall of the cylinder (401). The sliding block (406) is cylindrical in shape, and its diameter is consistent with the diameter of the sliding groove (402) and fits tightly with it. The sliding block (406) moves inside the sliding groove (402).

7. A new type of hydraulic hose coupling as claimed in claim 1, wherein: The limiting ring (6) has two symmetrical rings along the front view of the tube body (1), and the sealing gasket (8) is made of oil-resistant and high-pressure resistant nitrile rubber material.