Oil way joint

Abstract

The utility model provides an oil way joint, which belongs to the technical field of oil way joints, and is characterized in that the oil way joint comprises a male head and a female head, a fixing sleeve is arranged at one end, connected with an oil pipe, of the bottom of a main body of the male head and the female head, and the fixing sleeve is fixedly connected with the main body. The inner diameter of the top of the fixing sleeve is smaller than that of the main body, the top of the fixing sleeve is provided with a spring and is fixedly connected with the bottom of the spring, the top of the spring is fixedly connected with the valve element, the valve element is columnar and is located in the center of the main body, and the top of the valve element makes contact with the main body and is movably connected with the main body; wherein the valve core can prevent liquid from flowing out when the male head and the female head are disconnected, and the valve core is higher than the maximum radius part of the main body, so that when the male head and the female head are connected, the valve core moves downwards, and the liquid flows; the check valve has a check function, does not need to be installed again, and is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil circuit joints, and in particular relates to an oil circuit joint. Background Art

[0002] Oil pipe fittings are important components of piping systems used to connect different components or pipes. They are commonly used in hydraulic systems, lubrication systems, and other liquid transmission systems. These fittings allow oil to flow in the pipe system and may have a sealing function to prevent leakage.

[0003] The oil circuit check valve is a valve used in hydraulic systems, usually installed in the oil circuit of the hydraulic system. Its function is to prevent the oil in the hydraulic system from flowing back when the system stops working, and to prevent the oil in the system from flowing back when working. The oil circuit check valve can ensure the normal operation of the hydraulic system and prevent the system from pressure loss and damage to hydraulic components.

[0004] However, during installation and use, the oil circuit pipe joint needs to be separately installed with an oil circuit check valve, which is cumbersome to install and inconvenient to use. Utility Model Content

[0005] In view of this, the utility model provides an oil circuit joint with a check function, which does not need to reinstall the check valve and is convenient to use.

[0006] The utility model is achieved in this way:

[0007] The utility model provides an oil circuit joint, which comprises a male head and a female head, wherein a fixing sleeve is provided at one end of the main body bottom of the male head and the female head connected to the oil pipe, the fixing sleeve is fixedly connected to the main body, the inner diameter of the top of the fixing sleeve is smaller than the inner diameter of the main body, a spring is provided at the top of the fixing sleeve, which is fixedly connected to the bottom of the spring, the top of the spring is fixedly connected to a valve core, the valve core is columnar and located at the center of the main body, the top of the valve core is in contact with the main body and is movably connected to the main body.

[0008] On the basis of the above technical solution, an oil circuit connector of the utility model can also be improved as follows:

[0009] Wherein, a recess is provided on the top side wall of the valve core, and the recess is used to accommodate an O-ring.

[0010] Furthermore, the top of the valve core is higher than the portion of the main body with a hexagonal cross-section.

[0011] Furthermore, the valve core is a cylinder with an opening at one end toward the bottom of the main body, and a side wall of the valve core is provided with an opening.

[0012] The side wall opening of the cylinder with an opening at the bottom of the valve core is provided to facilitate the flow of liquid through the opening of the valve core.

[0013] Furthermore, the fixing sleeve is riveted to the main body.

[0014] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: riveting has a good tolerance for the deviation of the joint size, and even if there are some alignment errors between the parts, the connection can be achieved through riveting; since riveting will not produce obvious local defects during construction, the stress concentration is small and there is no obvious fatigue source, which makes the riveted structure have good fatigue resistance; riveting processing is suitable for metals such as aluminum that are not suitable for welding; riveting is one of the processing methods that utilizes the plastic deformation of metals to achieve connection through the deformation of metals. This method can achieve rapid processing and does not require complex welding equipment; riveting usually does not cause water seepage problems, avoiding leakage of joints.

[0015] Furthermore, the material of the O-ring is rubber.

[0016] Furthermore, the top inner wall of the fixing sleeve contacts the bottom outer wall of the valve core.

[0017] Compared with the prior art, the oil circuit joint provided by the utility model has the following beneficial effects:

[0018] Efficient connection and disassembly: As the male and female connectors are designed with movable connections, the oil circuit can be quickly connected and disassembled, which is convenient for maintenance, repair and replacement, and significantly improves the operating efficiency of the oil circuit system;

[0019] Flexibility of spring and valve core: A spring is installed on the top of the connection between the fixed sleeve and the main body, and the spring is connected to the valve core, which makes the valve core have a certain flexibility. This design helps to prevent the flow of liquid when the joint is not connected, and allows the liquid to pass after connection, which improves the reliability and safety of the oil circuit joint;

[0020] Effective sealing: The side wall of the valve core is recessed, and an O-ring is set in the recess to ensure the sealing between the male and female heads. The rubber material of the O-ring can effectively prevent liquid leakage and ensure the stability and safety of the oil system;

[0021] Fatigue resistance: The fixed sleeve is connected to the main body by riveting, which not only has a high tolerance and allows a certain dimensional deviation, but also has the advantage of strong fatigue resistance. Riveting will not produce obvious local defects, avoid stress concentration, and reduce the risk of fatigue damage;

[0022] Wide applicability: Riveted structures are suitable for a variety of materials, such as aluminum and other metals that are not suitable for welding. Riveting uses the plastic deformation of metals for connection. The process is simple and fast, and is suitable for use in various industrial applications;

[0023] Reduce the risk of leakage: Riveting will not cause water seepage problems that may occur during welding, reducing the risk of leakage in the joint. At the same time, the design of the top of the fixed sleeve ensures close contact between the bottom of the valve core and the outer wall, further enhancing the sealing performance;

[0024] Easy to process: Since riveting does not require complex welding equipment, this processing method is quick and easy to implement, helping to reduce production costs and simplify the manufacturing process.

[0025] In summary, this utility model oil circuit connector has obvious advantages in terms of safety, reliability, sealing, and ease of processing, and is suitable for the connection and maintenance needs of various oil circuit systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a schematic diagram of an oil circuit joint;

[0028] Figure 2 A top schematic diagram of an oil line joint

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Main body; 2. Fixed sleeve; 3. Valve core; 4. Spring; 5. O-ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0032] like Figure 1 , Figure 2 As shown, it is a first embodiment of an oil circuit joint provided by the utility model. In this embodiment, it includes a male head and a female head. The bottom of the main body 1 of the male head and the female head is connected to the oil pipe and a fixing sleeve 2 is provided at one end. The fixing sleeve 2 is fixedly connected to the main body 1. The inner diameter of the top of the fixing sleeve 2 is smaller than the inner diameter of the main body 1. A spring 4 is provided on the top of the fixing sleeve 2 and is fixedly connected to the bottom of the spring 4. The top of the spring 4 is fixedly connected to the valve core 3. The valve core 3 is columnar and located at the center of the main body 1. The top of the valve core 3 is in contact with the main body 1 and is movably connected to the main body 1.

[0033] Among them, in the above technical solution, the top side wall of the valve core 3 is provided with a recess, and the recess is used to accommodate the O-ring 5.

[0034] Furthermore, in the above technical solution, the top of the valve core 3 is higher than the portion of the main body 1 with a hexagonal cross-section.

[0035] Furthermore, in the above technical solution, the valve core 3 is a cylinder with an opening at one end toward the bottom of the main body 1 , and a side wall of the valve core 3 is provided with an opening.

[0036] Furthermore, in the above technical solution, the fixing sleeve 2 is riveted to the main body 1 .

[0037] Furthermore, in the above technical solution, the material of the O-ring 5 is rubber.

[0038] Furthermore, in the above technical solution, the top inner wall of the fixing sleeve 2 is in contact with the bottom outer wall of the valve core 3 .

[0039] Specifically, the principle of the utility model is: when in use, the convex part of the male head is inserted into the concave part of the female head, the valve core 3 contacts each other, compresses the spring downward, the valve core 3 inside the male head and the female head moves downward, the O-ring 5 moves away from the main body 1, and the leaf enters the concave part of the valve core 3 and then passes through the opening of the side wall of the valve core 3 for liquid circulation; when disassembling, the male head and the female head move away from each other, the spring 4 relaxes, pushing the valve core 3 to move upward, and the O-ring 5 on the top of the valve core 3 contacts the main body 1 to form a closed environment for non-return.

Claims

1. An oil line joint, characterized in that: It comprises a male head and a female head, wherein a fixing sleeve (2) is provided at one end of the bottom of a main body (1) of the male head and the female head connected to an oil pipe, wherein the fixing sleeve (2) is fixedly connected to the main body (1), wherein the inner diameter of the top of the fixing sleeve (2) is smaller than the inner diameter of the main body (1), wherein a spring (4) is provided at the top of the fixing sleeve (2) and is fixedly connected to the bottom of the spring (4), wherein the top of the spring (4) is fixedly connected to a valve core (3), wherein the valve core (3) is columnar and is located at the center of the main body (1), wherein the top of the valve core (3) is in contact with the main body (1) and is movably connected to the main body (1).

2. An oil line joint according to claim 1, characterized in that: The top side wall of the valve core (3) is provided with a recess, and the recess is used to accommodate an O-ring (5).

3. An oil line joint according to claim 2, characterized in that: The top of the valve core (3) is higher than the portion of the main body (1) with a hexagonal cross section.

4. An oil line joint according to claim 3, characterized in that: The valve core (3) is a cylinder with an opening at one end facing the bottom of the main body (1), and a side wall of the valve core (3) is provided with an opening.

5. The oil circuit joint according to claim 4, characterized in that: The fixing sleeve (2) is riveted to the main body (1).

6. The oil line joint according to claim 5, characterized in that: The material of the O-ring (5) is rubber.

7. An oil line joint according to claim 6, characterized in that: The top inner wall of the fixing sleeve (2) is in contact with the bottom outer wall of the valve core (3).

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