Multi-way valve
By providing anti-rotation ribs on the seal and opening grooves on the inner wall of the shell, the problem of twisting of the multi-way valve sealing structure during rotation is solved, and better sealing effect and stability are achieved.
Patent Information
- Application Number
- CN202422403981.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The sealing structure of the existing multi-way valve is prone to twisting during the rotation of the valve core, resulting in poor sealing effect.
An anti-rotation rib is provided on the seal, and a groove is provided on the inner wall of the shell. The anti-rotation rib is located in the groove to provide torsional resistance and prevent the seal from rotating with the valve core.
It effectively prevents relative movement between the seal and the housing, improves the sealing effect, and ensures the stability and reliability of the multi-way valve.
Smart Images
Figure CN223375168U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of fluid control, and in particular to a multi-way valve. Background Art
[0002] Conventional multi-way valves typically consist of a housing and a valve core, which is rotatably mounted within the housing. To ensure internal leakage, a sealing structure is employed between the housing and the valve core that conforms to the cylindrical curve of the valve core. This seal is achieved by compressing the gap between the valve core and the housing. However, since the valve core rotates continuously during operation, the sealing structure can easily twist with the rotation of the valve core, causing relative movement between the sealing structure and the housing, resulting in poor sealing effectiveness.
[0003] Therefore, it is necessary to provide an improved multi-way valve to solve the above problems. Summary of the Invention
[0004] The present application provides a multi-way valve with improved sealing effect.
[0005] The present application discloses a multi-way valve, comprising a housing, a valve core and a sealing member, wherein the valve core is rotatably arranged in the housing, and the sealing member is installed between the housing and the valve core; the sealing member is provided with an anti-rotation rib protruding toward a side away from the valve core, and a groove is correspondingly provided on the inner wall of the housing, and the anti-rotation rib is located in the groove.
[0006] Furthermore, a receiving groove is provided on the inner wall of the shell, and the sealing member is accommodated in the receiving groove; the receiving groove has a sealing surface, and the sealing surface is arranged in an arc shape along a direction perpendicular to the axial direction, and the groove is connected to the receiving groove and is recessed from the sealing surface to the side away from the valve core.
[0007] Furthermore, the shell is provided with a plurality of circulation holes, the sealing member is provided with a plurality of avoidance holes corresponding one to one with the circulation holes, the anti-rotation rib is located between two adjacent avoidance holes, and the groove is located between two adjacent circulation holes.
[0008] Furthermore, the plurality of flow holes and the plurality of avoidance holes are distributed in an array, and the anti-rotation ribs and the grooves extend in the axial direction.
[0009] Furthermore, the sealing member is provided with a plurality of sealing ribs protruding toward a side away from the valve core, the thickness of the sealing ribs in the radial direction is smaller than the thickness of the anti-rotation ribs in the radial direction, and the sealing ribs abut against the inner wall of the shell.
[0010] Furthermore, the sealing ribs include axial sealing ribs and circumferential sealing ribs, and the circumferential sealing ribs are respectively arranged alternately with the anti-rotation ribs and the axial sealing ribs.
[0011] Furthermore, the circumferential sealing rib is provided with a reinforcement portion at an intersection with the anti-rotation rib, and the thickness of the reinforcement portion in the radial direction is equal to the thickness of the anti-rotation rib in the radial direction.
[0012] Furthermore, the number of the axial sealing ribs is four groups, the number of the circumferential sealing ribs is four groups, the number of the anti-rotation ribs is one group, and the axial sealing ribs are symmetrically distributed on both sides of the anti-rotation ribs.
[0013] Furthermore, the thickness of the anti-rotation rib in the radial direction gradually decreases from one side to the other side in the axial direction.
[0014] Furthermore, a valve cover is included, and the output end of the valve core extends out of the valve cover.
[0015] The multi-way valve of this application utilizes an anti-rotation rib protruding from the sealing element toward the side away from the valve core, and a groove formed on the inner wall of the housing, with the anti-rotation rib located within the groove. The arrangement of the anti-rotation rib and the groove provides resistance to twisting of the sealing element, effectively preventing the sealing element from rotating with the valve core during operation. This prevents relative movement between the sealing element and the housing, maintains the sealing effect, and enhances the stability and reliability of the multi-way valve.
[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.
[0018] Figure 1 It is a three-dimensional diagram of a multi-way valve according to an embodiment of the present application.
[0019] Figure 2 It is along Figure 1 Cross-sectional view at AA in the middle.
[0020] Figure 3 yes Figure 1 Exploded view of the multi-port valve.
[0021] Figure 4 yes Figure 1 Exploded view of the multi-port valve from another perspective.
[0022] Figure 5 It is along Figure 1 Cross-sectional view at the middle BB.
[0023] Figure 6 yes Figure 1 A perspective view of the middle seal.
[0024] Figure 7 It is along Figure 6 Cross-sectional view at CC.
[0025] Description of Figure Numbers:
[0026] 10. Shell; 11. Groove; 12. Accommodating groove; 121. Sealing surface; 13. Flow hole; 20. Valve core; 30. Seal; 31. Anti-rotation rib; 32. Avoidance hole; 33. Sealing rib; 331. Axial sealing rib; 332. Circumferential sealing rib; 333. Reinforcement; 40. Valve cover. DETAILED DESCRIPTION
[0027] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this specification. Rather, they are merely examples of apparatus and methods consistent with certain aspects of this specification, as detailed in the appended claims.
[0028] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this specification should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar words used in this specification and claims do not denote any order, quantity, or importance, but are simply used to distinguish different components. Similarly, the terms "a" or "an" and similar words do not denote a limitation of quantity, but rather indicate the presence of one. The terms "plurality" or "several" refer to two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper" are used for convenience only and are not intended to limit a position or spatial orientation. The terms "include," "comprising," and similar words mean that the elements or objects preceding the term "include" or "comprising" include the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. The terms "connected," "connected," and similar words are not limited to physical or mechanical connections and may include electrical connections, whether direct or indirect.
[0029] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0030] Next, the embodiments of the present application are described in detail.
[0031] like Figure 1 and Figure 2 As shown, the present application provides a multi-way valve, including a housing 10, a valve core 20, a seal 30 and a valve cover 40. The valve core 20 is cylindrical as a whole and is rotatably arranged in the housing 10. The seal 30 is installed between the housing 10 and the valve core 20. The valve cover 40 is covered at one end of the housing 10. The output end of the valve core 20 extends out of the valve cover 40, and rotates along its own axis under the drive of the actuator (not shown in the figure), cooperating with the housing 10 to realize switching of different flow channels. In the present application, the end where the valve cover 40 is located is defined as the top of the multi-way valve, and the end away from the valve cover 40 is defined as the bottom of the multi-way valve.
[0032] Please also refer to Figure 3 The housing 10 forms a cavity within which the valve core 20 is located. The housing 10 is provided with a plurality of flow holes 13, which connect the exterior of the housing 10 with the valve core 20. During operation, the multi-way valve rotates relative to the housing 10, engaging with different flow holes 13 to switch between different flow paths, thereby forming different liquid passages.
[0033] The seal 30 is an elastic member positioned between the housing 10 and the valve core 20. Specifically, the seal 30 is positioned near the flow hole 13. Several escape holes 32 are provided on the seal 30. These escape holes 32 correspond to and communicate with the flow holes 13, allowing liquid in the flow holes 13 to enter and exit the valve core 20 through the escape holes 32.
[0034] Please also refer to Figure 4 and Figure 5 The housing 10 has an inner wall formed with a receiving groove 12, which receives the seal 30. The receiving groove 12 has a sealing surface 121, which is arranged in an arc shape perpendicular to the axial direction. This allows the seal 30 to conform to the cylindrical surface of the valve core 20, thereby achieving a seal between the housing 10 and the valve core 20. The provision of the receiving groove 12 facilitates the secure position of the seal 30, effectively preventing the seal 30 from rotating with the valve core 20. In some cases, the seal 30 can also be arranged around the circumference of the valve core 20.
[0035] The seal 30 is provided with an anti-rotation rib 31, which protrudes toward the side away from the valve core 20. The rib 31 is located between two adjacent avoidance holes 32 and extends axially along the multi-way valve. A corresponding groove 11 is formed on the inner wall of the housing 10. The groove 11 communicates with the receiving groove 12 and is recessed from the sealing surface 121 toward the side away from the valve core 20. The groove 11 is located between two adjacent flow holes 13 and extends axially along the multi-way valve.
[0036] Anti-rotation ribs 31 are located within groove 11, and their number is equal to that of grooves 11. When the valve core 20 rotates, the seal 30 tends to twist due to friction. The cooperation between the anti-rotation ribs 31 and the groove 11 provides resistance to the twisting of the seal 30, effectively preventing the seal 30 from rotating with the valve core 20 and ensuring that relative rotation between the seal 30 and the housing 10 does not occur. The end of the anti-rotation rib 31 facing away from the valve core 20 abuts the inner wall of the groove 11, further ensuring the seal between the seal 30 and the housing 10.
[0037] Please also refer to Figure 6 and Figure 7 In some cases, the wall thickness of the housing 10 on the side where the flow hole 13 is located gradually decreases from the bottom to the top of the housing 10. Accordingly, the depth of the multi-way valve's groove 11 also gradually decreases from the bottom to the top of the housing 10, and the radial thickness of the anti-rotation rib 31 also gradually decreases from one side to the other in the axial direction. In other words, the outer edge of the anti-rotation rib 31 gradually slopes toward the side closer to the valve core 20 from the bottom to the top. This ensures that the wall thickness of the housing 10 where the groove 11 is located is sufficient to support the normal operation of the multi-way valve, reduces the impact of the groove 11 on the structural strength of the housing 10, and improves the stability and reliability of the multi-way valve.
[0038] Furthermore, if Figure 5 and Figure 6 As shown, the sealing member 30 is also provided with a plurality of sealing ribs 33. The sealing ribs 33 protrude toward the side away from the valve core 20 and abut against the inner wall of the housing 10. Specifically, in this embodiment, the sealing ribs 33 abut against the sealing surface 121. The radial thickness of the sealing ribs 33 is less than the radial thickness of the anti-rotation ribs 31.
[0039] The sealing ribs 33 include axial sealing ribs 331 and circumferential sealing ribs 332. The circumferential sealing ribs 332 are interlaced with the anti-rotation ribs 31 and the axial sealing ribs 331. The axial sealing ribs 331, circumferential sealing ribs 332, and anti-rotation ribs 31 are all arranged around the avoidance holes 32, so that each avoidance hole 32 is surrounded by ribs protruding toward the housing 10. This forms a seal between the avoidance hole 32 and its corresponding flow hole 13, preventing liquid from flowing between adjacent flow holes 13. This improves the sealing performance of the multi-way valve and prevents liquid leakage between the seal 30 and the housing 10.
[0040] A reinforcement portion 333 is provided at the intersection of the circumferential sealing rib 332 and the anti-rotation rib 31. The radial thickness of the reinforcement portion 333 is equal to the radial thickness of the anti-rotation rib 31, further enhancing the friction between the anti-rotation rib 31 and the inner wall of the groove 11, improving the sealing and anti-twist performance of the anti-rotation rib 31 and the groove 11.
[0041] The plurality of flow holes 13 and the plurality of avoidance holes 32 are distributed in an array. Specifically, in this embodiment, the shell 10 is provided with three rows and four columns of twelve flow holes 13, and the seal 30 is correspondingly provided with three rows and four columns of twelve avoidance holes 32. The number of anti-rotation ribs 31 is one group, which is arranged between the two columns of avoidance holes 32 near the middle. The number of axial sealing ribs 331 is four groups, which are respectively arranged on both sides of the two columns of avoidance holes 32 near the edge, and the four groups of axial sealing ribs 331 are symmetrically distributed on both sides of the axial sealing ribs 331. The number of circumferential sealing ribs 332 is four groups, which are respectively arranged on both sides of the three rows of avoidance holes 32.
[0042] Each set of anti-rotation ribs 31 includes two ribs. These two adjacent ribs not only enhance the engagement between the anti-rotation ribs 31 and the grooves 11, thereby improving the anti-twist performance of the seal 30, but also form a good seal on both sides of the circumference of the anti-rotation ribs 31, further enhancing the stability and sealing of the multi-way valve's overall structure. Each set of sealing ribs 33 also includes two adjacent ribs.
[0043] It is understandable that the arrangement of the circulation holes 13 and the avoidance holes 32, as well as the number, thickness, and distribution of the anti-rotation ribs 31 and the sealing ribs 33 can be flexibly designed according to actual needs, and this application does not impose any restrictions on this. For example, under the above-mentioned distribution of three rows and four columns with a total of twelve avoidance holes 32, the seal 30 can also be provided with anti-rotation ribs 31 on both sides of the two columns of avoidance holes 32 near the middle, and axial sealing ribs 331 on the outside of the two columns of avoidance holes 32 near the edge. In this case, the number of anti-rotation ribs 31 is three groups, and the number of axial sealing ribs 331 is two groups. Among the three groups of anti-rotation ribs 31, the thickness of the anti-rotation ribs 31 located in the middle is greater than the thickness of the two groups of anti-rotation ribs 31 located on both sides thereof, so as to facilitate the installation of the seal 30.
[0044] The multi-way valve of the present application is provided with an anti-rotation rib 31 on the sealing member 30, which protrudes toward the side away from the valve core 20, and a groove 11 is provided on the inner wall of the housing 10, with the anti-rotation rib 31 located within the groove 11. The arrangement of the anti-rotation rib 31 and the groove 11 provides resistance to the twisting of the sealing member 30, effectively preventing the sealing member 30 from rotating with the valve core 20 during operation of the multi-way valve, ensuring that relative movement between the sealing member 30 and the housing 10 does not occur, thereby maintaining a good sealing effect and improving the stability and reliability of the multi-way valve.
[0045] The above description is merely a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred embodiment as above, it is not intended to limit the present application. Any technician familiar with this profession can make some changes or modifications to the equivalent embodiment of the above-disclosed technical content without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present application that does not depart from the content of the technical solution of the present application still falls within the scope of the technical solution of the present application.
Claims
1. A multi-way valve, characterized in that: It includes a shell, a valve core and a sealing member, the valve core is rotatably arranged in the shell, and the sealing member is installed between the shell and the valve core; the sealing member is provided with an anti-rotation rib protruding toward the side away from the valve core, and a groove is correspondingly provided on the inner wall of the shell, and the anti-rotation rib is located in the groove; the inner wall of the shell is provided with a receiving groove, and the sealing member is accommodated in the receiving groove; the receiving groove has a sealing surface, and the sealing surface is arranged in an arc shape along a direction perpendicular to the axial direction, and the groove is connected to the receiving groove and is recessed from the sealing surface toward the side away from the valve core.
2. The multi-way valve according to claim 1, characterized in that The shell is further provided with a plurality of circulation holes, the sealing member is provided with a plurality of avoidance holes corresponding one to one with the circulation holes, the anti-rotation rib is located between two adjacent avoidance holes, and the groove is located between two adjacent circulation holes.
3. The multi-way valve according to claim 2, characterized in that: The plurality of flow holes and the plurality of avoidance holes are distributed in an array, and the anti-rotation ribs and the grooves extend in the axial direction.
4. The multi-way valve according to claim 2, characterized in that The sealing member is further provided with a plurality of sealing ribs protruding toward a side away from the valve core. The thickness of the sealing ribs in the radial direction is smaller than the thickness of the anti-rotation ribs in the radial direction. The sealing ribs abut against the inner wall of the housing.
5. The multi-way valve according to claim 4, characterized in that The sealing ribs include axial sealing ribs and circumferential sealing ribs, and the circumferential sealing ribs are respectively arranged alternately with the anti-rotation ribs and the axial sealing ribs.
6. The multi-way valve according to claim 5, characterized in that The circumferential sealing rib is provided with a reinforcement portion at an intersection with the anti-rotation rib, and a thickness of the reinforcement portion in the radial direction is equal to a thickness of the anti-rotation rib in the radial direction.
7. The multi-way valve according to claim 5, characterized in that The number of the axial sealing ribs is four groups, the number of the circumferential sealing ribs is four groups, the number of the anti-rotation ribs is one group, and the axial sealing ribs are symmetrically distributed on both sides of the anti-rotation ribs.
8. The multi-way valve according to claim 1, wherein: The thickness of the anti-rotation rib in the radial direction gradually decreases from one side to the other side in the axial direction.
9. The multi-way valve according to claim 1, wherein: A valve cover is also included, and the output end of the valve core extends out of the valve cover.