A new built-in check valve

Abstract

The utility model relates to one -way valve technical field discloses a novel built -in one -way valve, include: valve shell, the middle part is equipped with cavity, valve seat, sets up one end at valve shell, spring, sets up in the cavity, and one end of spring is connected with valve seat, bearing steel ball, sets up in the cavity, and one side of bearing steel ball is contacted with the side of spring far away from valve seat, one side of bearing steel ball far away from spring is located one end in the cavity to control the opening and closure of cavity oil inlet, O ring, the recess in the lower part of valve shell is covered, and the recess and the end of valve shell between setting up have the isolation section, oil outlet, set up on valve seat, oil outlet communicates with the cavity, the O ring of the utility model sets up in the recess, compares to pad in one end of valve shell, can improve the installation sealing property of one -way valve to the reliability of one -way valve is guaranteed, the utility model will old -fashioned one -way valve need to use special structure installation change for internal hexagonal spanner rotation installation, and the torsion is big, makes the installation simple and reliable.

Description

Technical Field

[0001] This utility model relates to the field of one-way valve technology, and more specifically, to a novel built-in one-way valve. Background Technology

[0002] An internal check valve is a valve device installed inside specific equipment to control the unidirectional flow of fluid. Its structural design allows for compact integration within the relevant equipment system, occupying no additional external space and thus making the overall equipment layout more rational and concise. Compared to external check valves, internal check valves offer better sealing performance because their internal installation avoids corrosion and damage to the seals from external environmental factors. Simultaneously, they reduce flow resistance in pipelines; their tight integration with the internal structure of the equipment results in smoother pipeline connections and more stable fluid flow. Furthermore, internal check valves offer a cleaner and more aesthetically pleasing overall appearance, eliminating the need for additional external piping to connect the check valve, thus enhancing the overall compactness and integration of the equipment.

[0003] In the old-style built-in check valves of the prior art, the sealing gasket is located at the end of the check valve, which is a flat seal. This seal has poor sealing performance and is easily invaded by external impurities, leading to seal failure.

[0004] Therefore, there is an urgent need for a new type of built-in check valve to solve the problem of poor sealing performance of the old built-in check valve. At the same time, since the old check valve requires special tools for installation, and the diameter of the force-bearing parts of the tool is small and cannot withstand large screwing torque, the installation efficiency is not high. Therefore, the design needs to be improved and the structure optimized. Utility Model Content

[0005] In view of this, this utility model proposes a novel built-in check valve, which aims to solve the problems of poor sealing performance, low installation efficiency, and the need for customized installation tools in the old built-in check valve.

[0006] This utility model provides a novel built-in one-way valve, comprising: The valve body has a cavity in the middle; A valve seat is disposed at one end of the valve body; A spring is disposed within the cavity, and one end of the spring is connected to the valve seat; A bearing ball is disposed in the cavity, and one side of the bearing ball contacts the side of the spring away from the valve seat. The side of the bearing ball away from the spring is located at one end of the cavity to control the opening and closing of the oil inlet of the cavity. An O-ring is fitted into a groove in the lower part of the valve body, and an isolation section is provided between the groove and the end of the valve body; An oil outlet is provided on the valve seat, and the oil outlet communicates with the cavity.

[0007] The valve seat includes a seat body and an internal hexagonal socket; the seat body is disposed within the cavity and is located at one end of the cavity; the internal hexagonal socket is formed through the middle of the seat body; and a plurality of oil outlets are formed around the periphery of the internal hexagonal socket.

[0008] Furthermore, the valve seat is U-shaped, and the spring is placed in the groove of the valve seat.

[0009] Furthermore, the valve housing includes: A housing, wherein the cavity is formed in the middle of the housing; External thread, located at the end of the housing furthest from the O-ring.

[0010] Furthermore, the cavity includes: The first cavity is located inside the end of the valve body where the external thread is provided, and the first cavity is used to install the valve seat; The second cavity is located at the end of the first cavity near the O-ring, and the second cavity is used to place the bearing steel ball; The third cavity is located at the end of the second cavity that is furthest from the first cavity.

[0011] Furthermore, the inner diameter of the first cavity is larger than the inner diameter of the second cavity, and the inner diameter of the second cavity is larger than the inner diameter of the third cavity.

[0012] Furthermore, the inner diameter of the third cavity is smaller than the diameter of the bearing steel ball.

[0013] Furthermore, the O-ring has a circular cross-section.

[0014] Furthermore, the inner diameter of the O-ring is smaller than the outer diameter of the groove.

[0015] Furthermore, the circular diameter of the O-ring cross-section is greater than the depth of the groove.

[0016] Compared with the prior art, the beneficial effect of this utility model is that the O-ring of this utility model is set in the groove, which can improve the installation sealing of the one-way valve compared with padding one end of the valve body, thereby ensuring the reliability of the one-way valve. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the structure of a conventional built-in check valve provided in an embodiment of this utility model; Figure 2 A cross-sectional view of the novel built-in check valve provided in an embodiment of this utility model; Figure 3 A schematic diagram of the structure of the novel built-in one-way valve provided in the embodiment of this utility model.

[0018] In the diagram: 100, valve body; 110, cavity; 111, first cavity; 112, second cavity; 113, third cavity; 120, groove; 130, isolation section; 140, housing; 150, external thread; 200, valve seat; 210, oil outlet; 220, seat body; 230, internal hexagonal socket; 300, spring; 400, bearing ball; 500, O-ring. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 application 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 application.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] See Figure 1The sealing structure of the old-style built-in check valve in the prior art is located at the end of the check valve. It is a planar seal, which has poor sealing performance and is easily invaded by external impurities, leading to seal failure.

[0024] See Figure 2-3 As shown, this embodiment provides a novel built-in check valve, comprising: The valve housing 100 has a cavity 110 in the middle; Valve seat 200 is disposed at one end of valve body 100; Spring 300 is disposed in cavity 110, and one end of spring 300 is connected to valve seat 200; Bearing steel ball 400 is disposed in cavity 110, and one side of bearing steel ball 400 contacts the side of spring 300 away from valve seat 200. The side of bearing steel ball 400 away from spring 300 is located at one end of cavity 110 to control the opening and closing of oil inlet of cavity 110. An O-ring 500 is fitted into a groove 120 at the lower part of the valve housing 100, and an isolation section 130 is provided between the groove 120 and the end of the valve housing 100. Oil outlet 210 is located on valve seat 200 and is connected to cavity 110.

[0025] It is understood that the O-ring 500 of this utility model is set in the groove 120, which can improve the installation sealing of the check valve compared to it being placed on one end of the valve body 100, thereby ensuring the reliability of the check valve.

[0026] Furthermore, this utility model uses standard bearing steel balls 400 instead of the old valve core, which reduces the processing difficulty and simplifies the production process.

[0027] The valve seat 200 includes a seat body 220 and an internal hexagonal socket 230; the seat body 220 is disposed in the cavity 110 and is located at one end of the cavity 110; the internal hexagonal socket 230 is formed through the middle of the seat body 220; and a plurality of oil outlets 210 are formed around the periphery of the internal hexagonal socket 230.

[0028] It is understandable that this utility model has an internal hexagon 230 inside the seat 220, which changes the old one-way valve from needing a special structure for installation to an internal hexagon 230 wrench for screwing in, making installation simple, with high torque and higher efficiency.

[0029] In some embodiments of this application, the valve seat 200 is U-shaped, and a spring 300 is placed in the groove of the valve seat 200.

[0030] Understandably, the concave valve seat 200 design can better accommodate the spring 300, ensuring the stability and direction of the spring 300's force, thereby ensuring the normal operation of the check valve.

[0031] In some embodiments of this application, the valve housing 100 includes: The housing 140 has a cavity 110 in the middle. External thread 150 is located at the end of housing 140 away from O-ring 500.

[0032] Understandably, the cavity 110 in the middle of the housing 140 provides space for the flow of fluids and other substances or for the placement of related components, which helps the valve housing 100 achieve its specific function and ensures the normal operation of the check valve. Secondly, the external thread 150 located at the end of the housing 140 away from the O-ring 500 facilitates the connection of the valve housing 100 with other components with internal threads. This threaded connection method has good stability and sealing performance, ensuring that the valve housing 100 is tightly connected with other components during operation, preventing loosening and improving the reliability and stability of the entire system, thereby enhancing the working efficiency and performance of the built-in valve.

[0033] In some embodiments of this application, the cavity 110 includes: The first cavity 111 is located inside the end of the valve body 100 where the external thread 150 is provided, and the first cavity 111 is used to install the valve seat 200. The second cavity 112 is located at the end of the first cavity 111 near the O-ring 500, and the second cavity 112 is used to place the bearing steel ball 400. The third cavity 113 is located at the end of the second cavity 112 that is away from the first cavity 111.

[0034] Understandably, the first cavity 111 is located inside the end of the valve body 100 where the external thread 150 is provided, and is used to install the valve seat 200. This layout makes the installation position of the valve seat 200 clear and stable, which is conducive to the valve seat 200 playing its role in controlling fluids and other media in the whole device, ensuring that the media can flow according to the designed path. The second cavity 112 is located at the end of the first cavity 111 near the O-ring 500, and is used to place the bearing steel ball 400. This arrangement allows the bearing steel ball 400 to perform its function of opening or closing the cavity 110 in a specific position.

[0035] In some embodiments of this application, the inner diameter of the first cavity 111 is larger than the inner diameter of the second cavity 112, and the inner diameter of the second cavity 112 is larger than the inner diameter of the third cavity 113.

[0036] In some embodiments of this application, the inner diameter of the third cavity 113 is smaller than the diameter of the bearing steel ball 400.

[0037] Understandably, the inner diameter of the first cavity 111 is larger than that of the second cavity 112, which in turn is larger than that of the third cavity 113. Furthermore, the inner diameter of the third cavity 113 is smaller than the diameter of the bearing ball 400. This design of cavities 110 with different inner diameters creates a specific spatial structure layout, facilitating the rational placement and coordination of different components, and optimizing the overall structural compactness and stability. The smaller inner diameter of the third cavity 113, compared to the bearing ball 400, serves to limit the bearing ball 400, preventing it from dislodging and ensuring accurate relative positioning between components during operation. This, in turn, guarantees the precision and reliability of the equipment, improving overall performance and efficiency.

[0038] In some embodiments of this application, the cross-section of the O-ring 500 is circular.

[0039] In some embodiments of this application, the inner diameter of the O-ring 500 is smaller than the outer diameter of the groove 120.

[0040] In some embodiments of this application, the circular diameter of the O-ring 500 cross-section is greater than the depth of the groove 120.

[0041] Understandably, firstly, the circular cross-section of the O-ring 500 allows for more even stress distribution in all directions. Under pressure, the circular cross-section disperses the pressure, effectively preventing stress concentration and thus improving the sealing performance and service life of the O-ring 500. For example, in some pipe connections, the circular cross-section of the O-ring 500 better adapts to pressure changes in different directions, ensuring sealing stability. Secondly, the inner diameter of the O-ring 500 is smaller than the outer diameter of the groove 120. This design allows the O-ring 500 to be tightly embedded in the groove 120. It prevents displacement or detachment during use, ensuring the reliability of the sealing structure. Taking a hydraulic system as an example, the O-ring 500 is securely placed in the groove 120, effectively preventing liquid leakage and ensuring normal system operation. Furthermore, the circular diameter of the O-ring 500's cross-section is larger than the depth of the groove 120, resulting in a certain degree of compression deformation after installation. This compression deformation generates good elastic recovery force, further enhancing the sealing effect. In some high-temperature and high-pressure environments, this elastic restoring force can compensate for changes in the sealing gap caused by temperature and pressure variations, maintaining a good sealing condition at all times, thereby improving the safety and stability of the entire built-in valve.

[0042] The working principle of this utility model is as follows: This utility model achieves one-way fluid control through the cooperation of bearing steel ball 400 and spring 300. When the medium pressure is greater than the preload of spring 300, bearing steel ball 400 is pushed open, and the medium enters the cavity 110 and is discharged through the oil outlet 210 of valve seat 200. When the medium flows in reverse or the pressure is insufficient, spring 300 pushes bearing steel ball 400 back to its original position to close the oil inlet and prevent backflow. Its structure adopts a multi-stage cavity 110 partition layout, so that valve seat 200, steel ball and spring 300 are stably limited. The inner diameter of the third cavity 113 is smaller than the diameter of steel ball to prevent it from falling out. The concave valve seat 200 and internal hexagon 230 design simplify installation and improve fixation reliability. At the same time, O-ring 500 is embedded in groove 120 and enhances the sealing effect through compression deformation, thereby ensuring the sealing performance, stability and reliability of the one-way valve during operation.

[0043] It will be understood by those skilled in the art that the above description is merely 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 new type of built-in check valve, characterized in that, include: The valve body has a cavity in the middle; A valve seat is disposed at one end of the valve body; A spring is disposed within the cavity, and one end of the spring is connected to the valve seat; A bearing ball is disposed in the cavity, and one side of the bearing ball contacts the side of the spring away from the valve seat. The side of the bearing ball away from the spring is located at one end of the cavity to control the opening and closing of the oil inlet of the cavity. An O-ring is fitted into a groove in the lower part of the valve body, and an isolation section is provided between the groove and the end of the valve body; An oil outlet is provided on the valve seat, and the oil outlet communicates with the cavity; The valve seat includes a seat body and an internal hexagonal socket; the seat body is disposed within the cavity and is located at one end of the cavity; the internal hexagonal socket is formed through the middle of the seat body; and a plurality of oil outlets are formed around the periphery of the internal hexagonal socket.

2. The novel built-in check valve according to claim 1, characterized in that, The valve seat is U-shaped, and the spring is placed in the groove of the valve seat.

3. The novel built-in check valve according to claim 1, characterized in that, The valve body includes: A housing, wherein the cavity is formed in the middle of the housing; External thread, located at the end of the housing furthest from the O-ring.

4. The novel built-in check valve according to claim 3, characterized in that, The cavity includes: The first cavity is located inside the end of the valve body where the external thread is provided, and the first cavity is used to install the valve seat; The second cavity is located at the end of the first cavity near the O-ring, and the second cavity is used to place the bearing steel ball; The third cavity is located at the end of the second cavity that is furthest from the first cavity.

5. The novel built-in check valve according to claim 4, characterized in that, The inner diameter of the first cavity is larger than the inner diameter of the second cavity, and the inner diameter of the second cavity is larger than the inner diameter of the third cavity.

6. The novel built-in check valve according to claim 5, wherein The inner diameter of the third cavity is smaller than the diameter of the bearing steel ball.

7. The novel built-in check valve according to claim 1, wherein The O-ring has a circular cross-section.

8. The novel built-in check valve according to claim 1, characterized in that, The inner diameter of the O-ring is smaller than the outer diameter of the groove.

9. The novel built-in check valve according to claim 1, characterized in that, The diameter of the O-ring cross-section is greater than the depth of the groove.

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