Detachable high-flow oil way one-way valve

Abstract

The utility model discloses a detachable large-flow oil way one-way valve which is installed in an oil supply pipeline of an oil way system and comprises a valve body, an oil inlet and an oil outlet are formed in the two ends of the valve body, the hole diameter of the oil inlet and the hole diameter of the oil outlet are enlarged, and the periphery of the valve body is in interference fit with the oil supply pipeline through a sealing assembly. And the spring base is detachably installed at the end, close to the oil outlet, of the valve cavity, the spring base is connected with one end of a spring, the other end of the spring base is connected with a steel ball, and the spring is used for pressing the steel ball to the oil inlet so as to seal the oil inlet. According to the one-way valve, the oil inlet and the oil outlet with the enlarged hole diameter are formed, the requirement for large flow in an oil way system of a diesel vehicle can be met, the spring base is detachably installed in the valve cavity, assembly and disassembly of assemblies in the one-way valve are easy, the one-way valve is in interference fit with an oil supply pipeline through the sealing assembly, the one-way valve is convenient to disassemble from the oil supply pipeline, and the service life of the one-way valve is prolonged. The maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic equipment technology. More specifically, this utility model relates to a detachable, high-flow-rate oil circuit check valve. Background Technology

[0002] The core function of a check valve is to control the flow direction of liquid, ensuring that the fluid can only flow in one direction and cannot flow in the opposite direction. It has two basic working modes: forward conduction mode and reverse cut-off mode. In forward conduction mode, the fluid flows in from the inlet end, overcomes the preload of the spring, pushes open the valve core, and flows through the valve port to the outlet end. In reverse cut-off mode, the fluid flows in from the outlet end in the opposite direction, and the preload of the spring closes the valve core, preventing the fluid from flowing in the opposite direction.

[0003] Check valves are widely used in hydraulic systems, pneumatic systems, and fluid transmission systems. However, the flow rate of check valves currently on the market is small, which is difficult to meet the high flow rate requirements of diesel vehicle fuel circuit systems, resulting in low fuel delivery efficiency. In addition, check valves are often fixed and installed by means of metal thread expansion or welding, which cannot be disassembled and has high maintenance costs. Therefore, there is an urgent need to provide a detachable high-flow-rate fuel circuit check valve to meet the needs of diesel vehicle fuel circuit systems for high-flow-rate and easy-to-disassemble check valves. Summary of the Invention

[0004] Another objective of this invention is to provide a detachable, high-flow-rate oil circuit check valve that is easy to install and disassemble.

[0005] To achieve these objectives and other advantages according to this utility model, a detachable high-flow-rate oil circuit check valve is provided, which is installed in the oil supply line of an oil circuit system, comprising:

[0006] The valve body has a valve cavity inside. Both ends of the valve body have an enlarged orifice and an oil inlet and an oil outlet that communicate with the valve cavity. Both the oil inlet and the oil outlet are connected to the oil supply pipeline. A sealing assembly is provided on the outer periphery of the valve body. The sealing assembly is interference-fitted with the oil supply pipeline.

[0007] A spring base is detachably mounted on one end of the valve chamber near the oil outlet. The spring base is connected to one end of a spring, and the other end of the spring is connected to a steel ball. The diameter of the steel ball is larger than the diameter of the oil inlet. The spring is used to press the steel ball against the oil inlet to seal the oil inlet.

[0008] Preferably, a ball bearing seat is installed between the spring and the ball bearing, one end of the ball bearing seat is locked inside the spring, and the other end is connected to the ball bearing, and the outer periphery of the ball bearing seat does not contact the inner periphery of the valve cavity.

[0009] Preferably, the oil inlet has a ramp surface at the end near the steel ball, and the ramp surface fits tightly with the steel ball.

[0010] Preferably, the sealing assembly includes a plurality of first annular grooves formed on the outer periphery of the valve body, a first rubber sealing ring is sleeved in the first annular groove, and the first rubber sealing ring is interference-fitted with the oil supply line.

[0011] Preferably, a connecting assembly is provided on the outer periphery of the valve body, and the valve body is installed in the oil supply pipeline through the connecting assembly. The connecting assembly includes a first sleeve that is interference-fitted with the first rubber sealing ring, and a second sleeve that communicates with the first sleeve. A second annular groove is formed on the outer periphery of the first sleeve, and the second annular groove is interference-fitted with the oil supply pipeline through the second rubber sealing ring. A communicating channel communicating with the oil supply pipeline is formed on the second sleeve. A plug is integrally formed on the end of the second sleeve away from the first sleeve. The outer periphery of the plug is in close contact with the inner periphery of the oil supply pipeline, and one end of the plug extends out of the outside of the oil supply pipeline.

[0012] Preferably, the plug is connected to the oil supply line via a thread.

[0013] This utility model has at least the following beneficial effects: By opening oil inlet and oil outlet with enlarged apertures at both ends of the valve body, this utility model can meet the requirements of large flow rate in the fuel system of diesel vehicles. The spring base is detachably installed in the valve cavity by bolt connection, which is convenient for the assembly and disassembly of the components inside the one-way valve, which is beneficial for cleaning and maintenance. Furthermore, the one-way valve is interference-fitted with the fuel supply line through the sealing component. When the one-way valve is damaged, it is easy to remove the one-way valve from the fuel supply line, resulting in low maintenance costs.

[0014] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of a detachable high-flow-rate oil circuit check valve according to one embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the connection component described in the above embodiments;

[0017] Figure 3 This is a schematic diagram of the installation structure of the detachable high-flow-rate oil circuit check valve described in the above embodiments;

[0018] Explanation of reference numerals in the instruction manual:

[0019] 1. Steel ball, 2. Steel ball seat, 3. Spring, 4. Spring base, 5. Valve body, 6. Valve cavity, 7. Oil inlet, 8. Oil outlet, 9. Sloping surface, 10. First annular groove, 11. First sleeve, 12. Second sleeve, 13. Second annular groove, 14. Connecting channel, 15. Plug, 16. Oil supply line. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0021] It should be noted that in the description of this utility model, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figure 1-3 As shown, this utility model provides a detachable high-flow-rate oil circuit check valve, which is installed in the oil supply pipeline of the oil circuit system, and includes:

[0023] The valve body 5 has a valve cavity 6 inside. The valve body 5 has an oil inlet 7 and an oil outlet 8 with enlarged apertures at both ends, which are connected to the valve cavity 6. The oil inlet 7 and the oil outlet 8 are both connected to the oil supply line 16. A sealing assembly is provided on the outer periphery of the valve body 5. The sealing assembly is interference-fitted with the oil supply line 16.

[0024] A spring base 4 is detachably installed at one end of the valve chamber 6 near the oil outlet 8. The spring base 4 is connected to one end of the spring 3, and the other end of the spring 3 is connected to a steel ball 1. The diameter of the steel ball 1 is larger than the diameter of the oil inlet 7. The spring 3 is used to press the steel ball 1 against the oil inlet 7 to seal the oil inlet 7.

[0025] In the above technical solutions, such as Figure 1As shown, the one-way valve includes a valve body 5, a spring base 4, a spring 3, and a steel ball 1. The valve body 5 has an inlet 7 and an outlet 8 at both ends. The inlet 7 and outlet 8 are enlarged in diameter, increasing the valve body 5's diameter and effectively increasing the flow rate of the one-way valve to meet the high flow rate requirements of diesel vehicle fuel systems. The valve cavity 6 of the valve body 5 has an internal thread on its inner circumference near the outlet 8, and the spring base 4 has an external thread on its outer circumference. The spring base 4 is detachably mounted on the internal thread of the valve cavity 6 via the external thread. One end of the spring 3 is secured to the spring base 4. One end is connected to the steel ball 1. The channel hole on the spring base 4 can connect the valve chamber 6 and the oil outlet 8. Under the action of the spring 3, the steel ball 1 can move axially along the valve body 5 in the valve chamber 6 to control the opening and closing of the one-way valve. In use, after the one-way valve is assembled, it is installed into the oil supply line 16. The one-way valve is installed into the liquid supply line through the sealing assembly and achieves a sealed connection with the oil supply line 16. In the initial state, the spring 3 presses the steel ball 1 against the oil inlet 7, and the oil inlet 7 is in a sealed state. When oil enters the oil supply line 16, the oil applies pressure to the steel ball 1 from the oil inlet 7. When the oil pressure in the oil supply line 16 is greater than the preload of the spring 3, the oil will push open the steel ball 1, and the one-way valve will be in the open state. The oil in the oil supply line 16 will enter the valve chamber 6 through the oil inlet 7, and flow into the oil outlet 8 through the gap between the valve chamber 6 and the spring 3 and the channel hole on the spring base 4, and flow out through the oil outlet 8, thus realizing the oil circuit connection. The preload of the spring 3 is greater than one atmosphere. When the external force of the oil decreases to less than the preload of the spring 3, the steel ball 1 will re-tighten and seal the oil inlet 7, and the one-way valve will be in the closed state. The spring base of this utility model The seat 4 is detachably installed in the valve chamber 6 by bolt connection, which facilitates the assembly and disassembly of the internal components of the check valve, and is conducive to cleaning and maintenance. In addition, the check valve is interference-fitted with the oil supply line 16 through the sealing component. When the check valve is damaged, it is easy to remove the check valve from the oil supply line 16, resulting in low maintenance costs. The steel ball 1 is made of stainless steel, which greatly improves the service life compared with plastic materials during frequent opening and closing. The overall service life can reach more than 100,000 times, and the stainless steel material has excellent corrosion resistance to various fluids.

[0026] In another technical solution, a steel ball seat 2 is installed between the spring 3 and the steel ball 1. One end of the steel ball seat 2 is locked inside the spring 3, and the other end is connected to the steel ball 1. The outer periphery of the steel ball seat 2 does not contact the inner periphery of the valve cavity 6.

[0027] In this technical solution, such as Figure 1As shown, the ball bearing seat 2 has a T-shaped cross-section. Its horizontal part has an arc-shaped concave surface, which forms a sealing surface with the outer circumference of the ball bearing 1. The vertical part is locked inside the spring 3. The ball bearing seat 2 facilitates the connection between the ball bearing 1 and the spring 3. On the other hand, the vertical part of the ball bearing seat 2 can control the compression stroke of the spring 3, avoiding the spring 3 from being over-compressed and causing permanent deformation, loss of preload, and changes in the opening pressure parameters of the one-way valve.

[0028] In another technical solution, the oil inlet 7 is provided with a ramp 9 at one end near the steel ball 1, and the ramp 9 is in close contact with the steel ball 1.

[0029] In this technical solution, such as Figure 1 As shown, the ramp 9 can further increase the flow rate of oil entering the valve chamber 6, and the slope angle of the ramp 9 can be set to 45°.

[0030] In another technical solution, the sealing assembly includes a plurality of first annular grooves 10 formed on the outer periphery of the valve body 5, and a first rubber sealing ring is sleeved inside the first annular groove 10, and the first rubber sealing ring is interference-fitted with the oil supply line 16.

[0031] In this technical solution, such as Figure 1 As shown, the valve body 5 is installed inside the oil supply line 16 through the first rubber sealing ring, which is convenient for disassembly. There are two sets of the first rubber sealing ring. The double-layer rubber sealing ring and the oil supply line 16 are used to seal the valve, ensuring the one-way sealing of the one-way valve. The first rubber sealing ring can be adjusted according to the size of the oil supply line 16 to adapt to different inner diameter sizes of the oil supply line 16.

[0032] In another technical solution, a connecting assembly is provided on the outer periphery of the valve body 5. The valve body 5 is installed in the oil supply pipeline 16 through the connecting assembly. The connecting assembly includes a first sleeve 11 that is interference-fitted with the first rubber sealing ring, and a second sleeve 12 that communicates with the first sleeve 11. A second annular groove 13 is formed on the outer periphery of the first sleeve 11. The second annular groove 13 is interference-fitted with the oil supply pipeline 16 through the second rubber sealing ring. A communicating channel 14 that communicates with the oil supply pipeline 16 is formed on the second sleeve 12. A plug 15 is integrally formed on the end of the second sleeve 12 away from the first sleeve 11. The outer periphery of the plug 15 is in close contact with the inner periphery of the oil supply pipeline 16, and one end of the plug 15 extends out of the outside of the oil supply pipeline 16.

[0033] In this technical solution, such as Figure 2As shown, the inner circumference of the first sleeve 11 is press-fitted with the first rubber sealing ring, facilitating the installation of the valve body 5 into the first sleeve 11. The outer circumference of the first sleeve 11 is press-fitted with the oil supply line 16 via the second rubber sealing ring, facilitating the installation of the connecting assembly into the oil supply line 16, thereby installing the one-way valve into the oil supply line 16. The connecting channel 14 opened on the second sleeve 12 is used to allow oil in the oil supply line 16 to flow into the one-way valve. Specifically: as shown... Figure 3 As shown, when oil enters the oil supply line 16, the oil flows from the connecting channel 14 into the second sleeve 12, and then into the first sleeve 11. Pressure is applied to the steel ball 1 through the oil inlet 7. When the oil pressure in the first sleeve 11 is greater than the preload of the spring 3, the oil pushes open the steel ball 1, and the one-way valve is in the open state. The oil enters the valve chamber 6 through the oil inlet 7, and flows into the oil outlet 8 through the gap between the valve chamber 6 and the spring 3 seat and the channel hole on the spring base 4. The oil flows out through the oil outlet 8, realizing the oil circuit connection. The plug 15 integrally formed on the second sleeve 12 facilitates the installation and disassembly of the one-way valve by the operator. During installation, the operator can push the one-way valve into the oil supply line 16 by applying force to the plug 15. During disassembly, the operator can slowly pull out the one-way valve by holding the plug 15 tightly.

[0034] In another technical solution, the plug 15 is connected to the oil supply line 16 by a thread.

[0035] In this technical solution, the first sleeve 11 of the connecting assembly is press-fitted with the oil supply line 16 through the second rubber sealing ring to install the one-way valve in the oil supply line 16. The outer circumference of the plug 15 is provided with external threads, and the plug 15 is connected to the internal threads on the oil supply line 16 through the external threads to further install and fix the connecting assembly in the oil supply line 16. The connection assembly is installed in the oil supply line 16 by using the second rubber sealing ring and threaded connection to ensure the installation stability of the one-way valve.

[0036] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A detachable, high-flow-rate oil circuit check valve, installed in the oil supply pipeline of an oil circuit system, characterized in that, The utility model provides a valve body, spring base and steel ball seat, and the valve body is provided with a valve cavity, oil inlet and oil outlet, and the spring base is provided with a spring, and the steel ball seat is provided with a steel ball, and the spring is used for sealing the oil inlet. The utility model discloses a valve body, spring base and steel ball seat, and the valve body is provided with a valve cavity, oil inlet and oil outlet, and the spring base is provided with a spring, and the steel ball seat is provided with a steel ball, and the spring is used for sealing the oil inlet. The utility model discloses a valve body, spring base and steel ball seat, and the valve body is provided with a valve cavity, oil inlet and oil outlet, and the spring base is provided with a spring, and the steel ball seat is provided with a steel ball, and the spring is used for sealing the oil inlet.

2. The removable high flow one-way valve of claim 1, wherein, The utility model discloses a valve body, spring base and steel ball seat, and the valve body is provided with a valve cavity, oil inlet and oil outlet, and the spring base is provided with a spring, and the steel ball seat is provided with a steel ball, and the spring is used for sealing the oil inlet.

3. The removable high flow one-way valve of claim 1, wherein, The utility model discloses a valve body, spring base and steel ball seat, and the valve body is provided with a valve cavity, oil inlet and oil outlet, and the spring base is provided with a spring, and the steel ball seat is provided with a steel ball, and the spring is used for sealing the oil inlet.

4. The removable high flow one-way valve of claim 1, wherein, The utility model discloses a valve body, spring base and steel ball seat, and the valve body is provided with a valve cavity, oil inlet and oil outlet, and the spring base is provided with a spring, and the steel ball seat is provided with a steel ball, and the spring is used for sealing the oil inlet.

5. The removable high flow one-way valve of claim 4, wherein, The utility model discloses a valve body, spring base and steel ball seat, and the valve body is provided with a valve cavity, oil inlet and oil outlet, and the spring base is provided with a spring, and the steel ball seat is provided with a steel ball, and the spring is used for sealing the oil inlet.

6. The removable high flow one-way valve of claim 5, wherein, ​

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