Hydraulic joint with good anti-leakage effect

By introducing structures such as guide grooves, rubber blocks, and check valves into the hydraulic joint, the problems of leakage and complex installation of the hydraulic joint are solved, achieving higher sealing performance and simplified installation, while reducing maintenance and costs.

CN223782285UActive Publication Date: 2026-01-09PEFAS (NINGBO) FLUID POWER CO LTD
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Patent Information

Application Number
CN202520616960.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-01-09
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing hydraulic joints are prone to leakage during connection and are complex to install, resulting in shortened service life and increased costs.

Method used

A hydraulic connector with good leakage prevention effect was designed. By setting the flow guide groove, rubber block, one-way valve and limit block in the connector body, the sealing performance is enhanced and the installation process is simplified.

Benefits of technology

It reduces the risk of leakage, simplifies installation steps, reduces maintenance frequency, lowers usage costs, and improves sealing performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223782285U_ABST
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Abstract

The utility model relates to the technical field of hydraulic joints, and discloses a hydraulic joint with a good anti-leakage effect, which comprises a joint body, a through hole is arranged at the front end of the joint body, a mounting groove is arranged at the front end of the joint body, a connecting pipe is fixedly arranged in the mounting groove, and a flow guide pipe is arranged at the rear end of the connecting pipe. A limiting block is arranged at the rear end of the connecting pipe, a flow guide groove is formed in the middle of the connector body, a rubber block is fixedly mounted at the end, close to the mounting groove, of the flow guide groove, a connecting groove is formed in the top of the flow guide groove, and a mounting pipe is arranged at the end, away from the flow guide groove, of the connecting groove. The hydraulic connector with the good anti-leakage effect is simple in structure, the installation time is shortened, the installation difficulty is reduced, great convenience is brought to a user, meanwhile, the possible leakage of oil is utilized, the sealing effect of the connector is enhanced, the risk of environmental pollution is reduced, the frequency of maintaining and replacing a sealing element is reduced, and the use cost is saved.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic connector technology, specifically a hydraulic connector with good anti-leakage effect. Background Technology

[0002] A hydraulic coupling is an important component of a hydraulic system that connects different hydraulic components to form a closed loop. Hydraulic couplings are widely used in the driving of various pumps, valves, cylinders, and hydraulic motors, serving to connect, seal, and dampen vibrations. Hydraulic couplings typically have two main functions: retention and sealing. They help contain hydraulic fluid, prevent fluid from escaping from the system, and help guide flow and maintain system pressure.

[0003] Existing hydraulic joints and hydraulic pipes rely on simple sealing structures for connection, which can easily lead to leakage after prolonged use, rendering them unusable. Furthermore, the installation process of these joints is quite complex, increasing the difficulty and cost of installation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a hydraulic connector with good leak-proof performance, thereby solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic connector with good leak-proof effect, comprising a connector body, a through hole at the front end of the connector body, an installation groove at the front end of the connector body, a connecting pipe fixedly installed inside the installation groove, a guide pipe at the rear end of the connecting pipe, a limit block at the rear end of the connecting pipe, a guide groove in the middle of the connector body, a rubber block fixedly installed at one end of the guide groove near the installation groove, a connecting groove at the top of the guide groove, an installation pipe at the end of the connecting groove away from the guide groove, a one-way valve fixedly installed inside the installation pipe, a valve port at the top of the one-way valve, a bracket at the top of the one-way valve, a top plate at the top of the bracket, an installation platform at the bottom of the top plate, a telescopic rod installed inside the installation platform, and a baffle fixedly installed at the bottom of the telescopic rod.

[0008] Preferably, the diameter of the through hole is the same as the outer diameter of the guide tube, and the guide tube, after being installed inside the through hole, is longer than the position of the guide groove.

[0009] Preferably, the bottom of the mounting groove is provided with an external thread, the inner side of the limiting block is provided with an internal thread, and the mounting groove and the limiting block are threadedly connected.

[0010] Preferably, the guide groove is an annular hollow groove, and the guide groove is connected to the through hole.

[0011] Preferably, the end of the mounting tube furthest from the connecting groove is connected to the through hole.

[0012] Preferably, the diameter of the baffle is larger than the diameter of the valve port.

[0013] Compared with the prior art, this utility model provides a hydraulic joint with good anti-leakage effect, which has the following beneficial effects:

[0014] This leak-proof hydraulic connector has a simple structure that reduces installation time and difficulty, bringing great convenience to users. At the same time, it utilizes the potential for oil leakage to enhance the sealing effect of the connector, reduce the risk of environmental pollution, and also reduce the frequency of maintenance and replacement of sealing elements, thus saving operating costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a cross-sectional view of the connector body of this utility model;

[0018] Figure 4 This is a cross-sectional view of the connecting pipe of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the one-way valve of this utility model.

[0020] In the diagram: 1. Connector body; 2. Connecting pipe; 3. One-way valve; 101. Through hole; 102. Mounting groove; 103. Flow guide groove; 104. Rubber block; 105. Connecting groove; 106. Mounting pipe; 201. Flow guide pipe; 202. Limiting block; 301. Valve port; 302. Bracket; 303. Top plate; 304. Mounting platform; 305. Telescopic rod; 306. Baffle. 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] like Figure 1-5As shown, this utility model provides a technical solution: a hydraulic connector with good leakage prevention effect, including a connector body 1. The connector body 1 has a through hole 101 at its front end and an installation groove 102 at its front end. A connecting pipe 2 is fixedly installed inside the installation groove 102. A guide pipe 201 is provided at the rear end of the connecting pipe 2, and a limit block 202 is provided at the rear end of the connecting pipe 2. A guide groove 103 is provided in the middle of the connector body 1, and a rubber block 104 is fixedly installed at one end of the guide groove 103 near the installation groove 102. The top of the flow guide trough 103 is provided with a connecting groove 105. The end of the connecting groove 105 away from the flow guide trough 103 is provided with an installation pipe 106. A one-way valve 3 is fixedly installed inside the installation pipe 106. A valve port 301 is provided on the top of the one-way valve 3. A bracket 302 is provided on the top of the one-way valve 3. A top plate 303 is provided on the top of the bracket 302. An installation platform 304 is provided at the bottom of the top plate 303. A telescopic rod 305 is installed inside the installation platform 304. A baffle 306 is fixedly installed at the bottom of the telescopic rod 305.

[0023] Furthermore, the diameter of the through hole 101 is the same as the outer diameter of the guide tube 201, and the guide tube 201 is longer than the position of the guide groove 103 after being installed inside the through hole 101.

[0024] The above technical solution facilitates the installation of the guide pipe 201 inside the through hole 101 and prevents the oil from entering the guide groove 103 when the guide pipe 201 delivers oil into the through hole 101.

[0025] Furthermore, the bottom of the mounting groove 102 is provided with an external thread, the inner side of the limiting block 202 is provided with an internal thread, and the mounting groove 102 and the limiting block 202 are threadedly connected.

[0026] The above technical solution facilitates the installation of the connector body 1 on the connecting pipe 2, while also enhancing the sealing between the connector body 1 and the connecting pipe 2.

[0027] Furthermore, the guide groove 103 is an annular hollow groove, and the guide groove 103 is connected to the through hole 101.

[0028] The above technical solution ensures that oil can enter the guide channel 103 regardless of the direction of leakage.

[0029] Furthermore, the end of the mounting tube 106 away from the connecting groove 105 is connected to the through hole 101.

[0030] The above technical solution allows leaked oil to easily re-enter the through hole 101 after passing through the guide groove 103, the connecting groove 105, and the installation pipe 106.

[0031] Furthermore, the diameter of the baffle 306 is larger than the diameter of the valve port 301.

[0032] The above technical solution ensures that only the oil in the mounting pipe 106 enters the through hole 101, and that no oil inside the through hole 101 enters the mounting pipe 106.

[0033] Working principle: First, the limiting block 202 of the connecting pipe 2 is installed inside the connector through the mounting groove 102. After a long period of use, oil leakage will occur at the contact point between the guide pipe 201 and the through hole 101. At this time, the leaked oil first enters the guide groove 103, and is guided by the guide groove 103 to the connecting groove 105 and then flows to the mounting pipe 106. Finally, it enters the through hole 101 again through the one-way valve 3. At the same time, the entry of oil will increase the pressure in the guide groove 103, causing the rubber block 104 to be squeezed against the limiting block 202, thereby strengthening the sealing between the connecting pipe 2 and the connector body 1.

[0034] 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 hydraulic connector with good leakage prevention effect, comprising a connector body (1), characterized in that: The connector body (1) has a through hole (101) at its front end and an installation groove (102) at its front end. A connecting pipe (2) is fixedly installed inside the installation groove (102). A guide pipe (201) is provided at the rear end of the connecting pipe (2). A limit block (202) is provided at the rear end of the connecting pipe (2). A guide groove (103) is provided in the middle of the connector body (1). A rubber block (104) is fixedly installed at one end of the guide groove (103) near the installation groove (102). A connecting groove (105) is provided at the top of the guide groove (103). An installation pipe (106) is provided at one end of the connecting groove (105) away from the guide groove (103). A one-way valve (3) is fixedly installed inside the installation pipe (106). A valve port (301) is provided at the top of the one-way valve (3). A bracket (302) is provided at the top of the one-way valve (3). A top plate (303) is provided at the top of the bracket (302). An installation platform (304) is provided at the bottom of the top plate (303). A telescopic rod (305) is installed inside the installation platform (304). A baffle (306) is fixedly installed at the bottom of the telescopic rod (305).

2. The hydraulic joint with good anti-leakage effect according to claim 1, characterized in that: The diameter of the through hole (101) is the same as the outer diameter of the guide tube (201), and the guide tube (201) is longer than the position of the guide groove (103) after it is installed inside the through hole (101).

3. The hydraulic joint with good anti-leakage effect according to claim 1, characterized in that: The bottom of the mounting groove (102) is provided with an external thread, the inner side of the limiting block (202) is provided with an internal thread, and the mounting groove (102) and the limiting block (202) are threadedly connected.

4. A hydraulic joint with good anti-leakage effect according to claim 1, characterized in that: The guide groove (103) is an annular hollow groove, and the guide groove (103) is connected to the through hole (101).

5. A hydraulic joint with good anti-leakage effect according to claim 1, characterized in that: The end of the mounting tube (106) away from the connecting groove (105) is connected to the through hole (101).

6. A hydraulic joint with good anti-leakage effect according to claim 1, characterized in that: The diameter of the baffle (306) is larger than the diameter of the valve port (301).