A novel three-way valve with a valve core structure

Abstract

This application relates to the field of three-way valves, disclosing a novel three-way valve with a valve core structure, including a valve body, a valve core, an arc-shaped retaining plate, and a wrench lever. The valve core is rotatably disposed inside the valve body. Both the valve body and the valve core have a cylindrical structure. Three connecting pipes for connecting pipelines are provided on the side of the valve body. The valve core has corresponding connecting pipes with mating holes. A control post is provided on the top of the valve core, and the control post extends sealingly to the outside of the valve body and is connected to the wrench lever. An arc-shaped mounting groove is provided on one side of the valve core, and a sealing frame is placed in the mounting groove. A fitting groove is opened on the outside of the sealing frame, and an arc-shaped retaining plate is attached in the fitting groove. The size of the arc-shaped retaining plate is adapted to the size of the port of the valve body connected to the connecting pipe. This application solves the problem of complex valve core manufacturing process and avoids the risk of internal leakage due to sealing issues.

Description

Technical Field

[0001] This application relates to the field of three-way valve technology, and for example to a three-way valve with a novel valve core structure. Background Technology

[0002] A three-way valve is a valve device with three ports, one inlet and two outlets. When the internal valve core is in different positions, the outlets are different. For example, when the lower part of the valve core is blocked, the left and right ports are connected. When the right part of the valve core is blocked, the left and lower ports are connected. The most obvious difference between a three-way valve and an ordinary valve is that it has an extra flow channel. Its main function is to change the flow direction of the medium fluid.

[0003] Three-way valves are classified into confluence valves and diverter valves according to their fluid action. Confluence valves have two inlets, and the fluid flows out from one outlet after merging. Diverter valves have one fluid inlet, and the fluid flows out from two outlets after being divided. Most of the three-way valves on the market are ball valve cores. The valve core is spherical with through holes on the corresponding connecting pipe surface. The through holes are blocked by the side without through holes to achieve fluid interruption or diversion. However, since the valve core is spherical, after manufacturing and demolding, spherical grinding is required to ensure the quality of use. Spherical grinding is relatively complex and time-consuming. In addition, the ball core is a sphere with one perfect spherical surface and three perfect circular holes, while the sealing ring is a regular annular ring. Therefore, the seal between the sealing ring and the ball core may not be tight, which may easily lead to the risk of internal leakage of the valve. Utility Model Content

[0004] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0005] This disclosure provides a novel three-way valve with a new valve core structure to solve the problem of complex valve core manufacturing process and avoid internal leakage due to sealing risks.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A novel three-way valve with a valve core structure includes a valve body, a valve core, an arc-shaped retaining plate, and a wrench lever. The valve core is rotatably mounted inside the valve body and controls the direction change and flow interruption of the fluid passing through the valve. Both the valve body and the valve core are cylindrical in shape. Three connecting pipes for connecting to pipelines are provided on the side of the valve body. The valve core has corresponding connecting pipes with mating holes to facilitate fluid diversion. A control post is located on the top of the valve core, extending sealingly to the outside of the valve body and connected to the wrench lever. Operators can control the rotation of the valve core using the wrench lever to control the opening and closing of the connecting pipes. An arc-shaped mounting groove is provided on one side of the valve core, within which a sealing frame is placed. A fitting groove is formed on the outside of the sealing frame, within which an arc-shaped retaining plate is attached. The size of the arc-shaped retaining plate is adapted to the size of the port connecting the valve body to the connecting pipe. Furthermore, the arc-shaped buckle plate can effectively block the connecting pipe and ensure flow interruption. The sealing frame ensures the seal between the arc-shaped buckle plate and the valve core body, preventing the buckle plate from loosening due to fluid pressure inside the valve body. The cylindrical structure of both the valve body and valve core ensures their fit. The arc-shaped buckle plate, in conjunction with the sealing frame, ensures a complete seal at the port of the connecting pipe, preventing leakage caused by incomplete sealing between the water passage of the spherical valve core and the circular sealing ring. Moreover, the cylindrical structure is simpler to manufacture, eliminating the need for complex spherical grinding and saving on mass production costs. During valve operation, the operator uses a wrench lever to rotate the valve core via the control column. When the valve core, along with the arc-shaped buckle plate, completely covers the port of the connecting pipe, the flow in the corresponding connecting pipe is interrupted. The flow rate can be adjusted by controlling the degree of overlap between the arc-shaped buckle plate and the port of the connecting pipe.

[0008] Furthermore, the outer diameter of the valve core body is adapted to the inner diameter of the valve body body, which facilitates the stability and sealing between the valve core and the valve body.

[0009] Furthermore, the valve body has a base at its bottom, which is sealed and fixedly connected to the valve body. A positioning rod is provided at the center of the bottom of the valve core, and a positioning cylinder is provided on the inner side of the base corresponding to the positioning rod. The positioning rod is rotatably inserted into the positioning cylinder to facilitate the positioning and rotational stability of the valve core, while ensuring the convenience of assembly. After the valve core is placed in the valve body, the positioning cylinder of the base is directly aligned with the positioning rod of the valve core and fastened. Then, the base is sealed and fixed to the valve body to complete the assembly.

[0010] Furthermore, the base has several outer reinforcing ribs evenly arranged along the center of the bottom, and several inner reinforcing ribs evenly arranged along the center of the top. The inner and outer reinforcing ribs help to increase the sturdiness of the base and ensure its service life.

[0011] Furthermore, the connecting pipe is provided with a convex ring at both the end and the outer side. The convex ring facilitates the stable installation of the external pipe and connects the pipe to the connecting pipe. The convex ring helps to increase the damping between the pipe and the connecting pipe. When the pipe and the connecting pipe are fixed with wire, the convex ring can also prevent the wire from falling off.

[0012] Furthermore, the valve body is provided with an annular top sleeve, and a limit sleeve is rotatably provided on the inner side of the top sleeve. The limit sleeve is fixedly sleeved to the control column, and the end of the wrench is fastened to the top of the limit sleeve. The outer diameter of the limit sleeve is adapted to the inner diameter of the top sleeve, and the inner side of the limit sleeve is adapted to the outer side of the control column. The limit sleeve can ensure the sealing between the control column and the top sleeve, and can prevent leakage at the top of the valve body. When the wrench is turned, it will drive the limit sleeve and the control column to rotate synchronously, thereby driving the valve core to rotate to realize the opening and closing of the valve and the flow regulation.

[0013] Furthermore, a fixing hole is provided at the top of the control column, and a reserved hole is provided at the end of the wrench rod corresponding to the fixing hole. The wrench rod and the control column can be fixedly connected by threading screws through the reserved hole and the fixing hole.

[0014] Furthermore, the sealing frame structure is adapted to the mounting groove, the arc buckle plate has an arc-shaped structure and its inner side is adapted to the fitting groove, and the outer side of the arc buckle plate and the outer side of the valve core are on the same curved surface.

[0015] Furthermore, the inner side of the arc buckle plate is provided with several through rods, and the mounting groove is provided with through hole slots corresponding to the through rods. The through rods are inserted into the corresponding through hole slots with damping. The through rods and through hole slots facilitate convenient and stable connection between the arc buckle plate and the valve core.

[0016] The three-way valve with a novel valve core structure provided in this disclosure can achieve the following technical effects:

[0017] 1): The main body of the valve body and valve core of this utility model are both cylindrical. The outer diameter of the valve core body is adapted to the inner diameter of the valve body body, which facilitates the stability and sealing between the valve core and the valve body. The cylindrical structure has a simpler processing technology, does not require complex spherical grinding, and saves mass production costs.

[0018] 2): In this utility model, the valve body has a mounting groove in which a sealing frame is placed. The outer side of the sealing frame has a fitting groove, and an arc-shaped buckle plate is attached to the fitting groove. The size of the arc-shaped buckle plate is adapted to the size of the port of the valve body connected to the connecting pipe. The sealing frame ensures the sealing between the arc-shaped buckle plate and the valve core body, which can prevent the arc-shaped buckle plate from loosening due to fluid pressure in the valve body. The structure of both the valve body and the valve core is cylindrical, which can ensure the fit between the two. In addition, the arc-shaped buckle plate and the sealing frame can ensure the complete sealing of the port of the connecting pipe, and prevent the water passage hole of the spherical valve core from not being completely sealed with the circular sealing ring, which would cause leakage inside the valve.

[0019] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings are not scaled. Other drawings can be obtained by those skilled in the art based on these drawings.

[0021] Figure 1 This is a schematic diagram of a three-way valve structure with a novel valve core structure according to this utility model;

[0022] Figure 2 This is a schematic diagram of the bottom structure of a three-way valve with a novel valve core structure according to this utility model;

[0023] Figure 3 This is a schematic diagram of the valve body structure in a three-way valve with a novel valve core structure according to this utility model;

[0024] Figure 4 This is a schematic diagram of the base structure in a three-way valve with a novel valve core structure according to this utility model;

[0025] Figure 5 This is a schematic diagram of the valve core structure in a three-way valve with a novel valve core structure according to this utility model;

[0026] Figure 6 This is an exploded view of the valve core structure in a three-way valve with a novel valve core structure according to this utility model.

[0027] Figure 7 This is a longitudinal cross-sectional view of a three-way valve with a novel valve core structure according to this utility model.

[0028] Figure 8 This is a schematic diagram of the arc-shaped buckle plate structure in a three-way valve with a novel valve core structure according to this utility model.

[0029] Figure label:

[0030] 1. Valve body; 11. Connecting pipe; 12. Raised ring; 13. Base; 14. Outer reinforcing rib; 15. Inner reinforcing rib; 16. Positioning cylinder; 17. Top sleeve; 2. Valve core; 21. Butt hole; 22. Positioning rod; 23. Control column; 24. Fixing hole; 25. Installation groove; 26. Through hole groove; 3. Sealing frame; 31. Fitting groove; 4. Arc buckle plate; 41. Through rod; 5. Limit sleeve; 6. Wrench rod; 7. Reserved hole. Detailed Implementation

[0031] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0032] A novel three-way valve with a valve core structure includes a valve body 1, a valve core 2, an arc-shaped retaining plate 4, and a wrench lever 6. The valve core 2 is rotatably disposed inside the valve body 1, controlling the direction change and flow interruption of the fluid passing through the valve. Both the valve body 1 and the valve core 2 are cylindrical in shape. The outer diameter of the valve core 2 is adapted to the inner diameter of the valve body 1, facilitating stability and sealing between the valve core 2 and the valve body 1. Three connecting pipes 11 are provided on the side of the valve body 1 for connecting pipelines. Each connecting pipe 11 has a raised ring 12 at its end and outer side, which facilitates stable fitting. An external pipe is connected to the connecting pipe 11. The convex ring 12 helps to increase the damping between the pipe and the connecting pipe 11. When the pipe and the connecting pipe 11 are fixed with wire, the convex ring 12 can also prevent the wire from falling off. The valve core 2 is provided with a docking hole 21 corresponding to the connecting pipe 11 to facilitate the diversion of fluid passing through the valve. The top of the valve core 2 is provided with a control post 23. The control post 23 extends to the outside of the valve body 1 and is connected to a wrench 6. The operator can control the rotation of the valve core 2 through the wrench 6 to control the opening and closing of the connecting pipe 11.

[0033] The valve body 1 has a base 13 at its bottom, which is sealed and fixedly connected to the valve body 1. The valve core 2 has a positioning rod 22 at its bottom center. The positioning cylinder 16 is provided on the inner side of the base 13 corresponding to the positioning rod 22. The positioning rod 22 is rotatably inserted into the positioning cylinder 16 to facilitate the positioning and rotational stability of the valve core 2, while ensuring ease of assembly. After the valve core 2 is placed in the valve body 1, the positioning cylinder 16 of the base 13 is directly aligned with the positioning rod 22 of the valve core 2 and fastened. Then, the base 13 is sealed and fixed to the valve body 1 to complete the assembly. The bottom of the base 13 has several outer reinforcing ribs 14 evenly arranged along its center, and the top of the base 13 has several inner reinforcing ribs 15 evenly arranged along its center. The inner and outer reinforcing ribs 14 help to increase the robustness of the base 13 and ensure its service life.

[0034] The valve body 1 has an annular top sleeve 17 on its top. A limit sleeve 5 is rotatably provided on the inner side of the top sleeve 17. The limit sleeve 5 is fixedly sleeved to the control column 23. The end of the wrench rod 6 is fastened to the top of the limit sleeve 5. The outer diameter of the limit sleeve 5 is adapted to the inner diameter of the top sleeve 17. The inner side of the limit sleeve 5 is adapted to the outer side of the control column 23. The limit sleeve 5 can ensure the sealing between the control column 23 and the top sleeve 17, and can prevent leakage at the top of the valve body 1. When the wrench rod 6 is turned, it will drive the limit sleeve 5 and the control column 23 to rotate synchronously. Thus, the control column 23 drives the valve core 2 to rotate, thereby realizing the opening and closing of the valve and the flow regulation. The top of the control column 23 has a fixing hole 24. The end of the wrench rod 6 has a reserved hole 7 corresponding to the position of the fixing hole 24. The reserved hole 7 and the fixing hole 24 can be threaded through the screw to realize the fixed connection between the wrench rod 6 and the control column 23.

[0035] The valve core 2 has an arc-shaped mounting groove 25 on one side, and a sealing frame 3 is placed in the mounting groove 25. A fitting groove 31 is formed on the outer side of the sealing frame 3, and an arc-shaped buckle plate 4 is attached to the fitting groove 31. The structure of the sealing frame 3 is adapted to the mounting groove 25. The arc-shaped buckle plate 4 has an arc-shaped structure, and its inner side is adapted to the fitting groove 31. The outer side of the arc-shaped buckle plate 4 is on the same curved surface as the outer side of the valve core 2. The size of the arc-shaped buckle plate 4 is adapted to the size of the port of the valve body 1 connecting to the connecting pipe 11, thus enabling the arc-shaped buckle plate 4 to achieve [the desired effect]. The sealing of the connecting pipe 11 ensures the function of flow interception. The sealing frame 3 ensures the sealing between the arc plate 4 and the valve core 2 body, which can prevent the arc plate 4 from loosening due to fluid pressure inside the valve body 1. Several through rods 41 are provided on the inner side of the arc plate 4. Through hole slots 26 are provided in the mounting groove 25 corresponding to the through rods 41. The through rods 41 are inserted into the corresponding through hole slots 26 with damping. The through rods 41 and through hole slots 26 facilitate convenient and stable connection between the arc plate 4 and the valve core 2.

[0036] The cylindrical structure of both valve body 1 and valve core 2 ensures a close fit between them. Furthermore, the arc-shaped buckle plate 4, in conjunction with the sealing frame 3, ensures a complete seal on the port of the connecting pipe 11, preventing leakage caused by incomplete sealing between the water passage of the spherical valve core 2 and the circular sealing ring. The cylindrical structure also simplifies the manufacturing process, eliminating the need for complex spherical grinding and saving on mass production costs. During valve operation, the operator uses the wrench lever 6 to rotate the valve core 2 via the control column 23. When the valve core 2, along with the arc-shaped buckle plate 4, completely covers the port of the connecting pipe 11, the flow in the corresponding connecting pipe 11 is interrupted. The flow rate can be adjusted by controlling the degree of overlap between the arc-shaped buckle plate 4 and the port of the connecting pipe 11.

[0037] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Some parts and features of some embodiments may be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A novel three-way valve with a valve core structure, characterized in that, The valve includes a valve body, a valve core, an arc-shaped retaining plate, and a wrench lever. The valve core is rotatably mounted inside the valve body. Both the valve body and the valve core have a cylindrical structure. The valve body has three connecting pipes on its side for connecting to pipelines. The valve core has a mating hole corresponding to the connecting pipe. The top of the valve core has a control post. The control post extends to the outside of the valve body and is connected to a wrench lever. One side of the valve core has an arc-shaped mounting groove. A sealing frame is placed in the mounting groove. A fitting groove is opened on the outside of the sealing frame. An arc-shaped retaining plate is attached in the fitting groove. The size of the arc-shaped retaining plate is adapted to the size of the port of the valve body connecting to the connecting pipe.

2. The three-way valve with a novel valve core structure according to claim 1, characterized in that, The outer diameter of the valve core body is adapted to the inner diameter of the valve body body.

3. The three-way valve with a novel valve core structure according to claim 1, characterized in that, The valve body has a base at the bottom, and the base is fixedly connected to the valve body in a sealed manner. The valve core has a positioning rod at the center of the bottom, and a positioning cylinder is provided on the inner side of the base corresponding to the positioning rod. The positioning rod is rotatably inserted into the positioning cylinder.

4. A three-way valve with a novel valve core structure according to claim 3, characterized in that, The base has a number of outer reinforcing ribs evenly arranged along its center at the bottom, and a number of inner reinforcing ribs evenly arranged along its center at the top.

5. A three-way valve with a novel valve core structure according to claim 1, characterized in that, The connecting pipe is provided with a raised ring at both the end and the outer side.

6. A three-way valve with a novel valve core structure according to claim 1, characterized in that, The valve body is provided with an annular top sleeve, and a limit sleeve is rotatably provided on the inner side of the top sleeve. The limit sleeve is fixedly sleeved to the control column. The end of the wrench rod is fastened to the top of the limit sleeve. The outer diameter of the limit sleeve is adapted to the inner diameter of the top sleeve, and the inner side of the limit sleeve is adapted to the outer side of the control column.

7. A three-way valve with a novel valve core structure according to claim 1, characterized in that, The top of the control column has a fixing hole, and the end of the wrench lever has a reserved hole at the position corresponding to the fixing hole.

8. A three-way valve with a novel valve core structure according to claim 1, characterized in that, The sealing frame structure is adapted to the mounting groove, the arc buckle plate is an arc-shaped structure and its inner side is adapted to the fitting groove, and the outer side of the arc buckle plate and the outer side of the valve core are on the same curved surface.

9. A three-way valve with a novel valve core structure according to claim 1, characterized in that, The inner side of the arc-shaped buckle plate is provided with several through rods, and the mounting groove is provided with through hole slots corresponding to the through rods. The through rods are inserted into the corresponding through hole slots with damping.

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