Multi-way valve

Abstract

The utility model provides a multi-way valve which comprises a valve seat, a valve core, a valve core, a valve core and a valve core. The valve element assembly abuts against the valve seat and can rotate relative to the valve seat, the valve element assembly comprises a valve disc and a sealing gasket, the sealing gasket is located between the valve disc and the valve seat, and a flow channel through hole used for being communicated with a valve seat flow channel is formed in the sealing gasket; a sealing gasket is arranged between the two adjacent partition walls, a guide rib is arranged between the two adjacent partition walls and extends between the two adjacent partition walls, the tops of the partition walls abut against the sealing gasket, the tops of the guide ribs at least partially abut against the sealing gasket, and the tops of the guide ribs are at least partially lower than the tops of the partition walls. And by arranging the guide ribs, movement of the sealing gasket is effectively guided, the deformation problem caused by uneven stress is avoided, and the service life of the sealing gasket is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of flow control, in particular to a multi-way valve. Background Art

[0002] In the existing new energy thermal management integrated system, multi-way valves, as key fluid control components, are widely used in various circulating fluid systems, such as cooling systems, heating systems, etc. The function of the multi-way valve is to achieve stable operation of the system by controlling the switching of multiple fluid flow channels. In order to ensure that the fluid does not leak in the flow channel where it should not flow, sealing performance is crucial. In the prior art, an interference fit between the sealing gasket and the valve body partition wall is usually used to ensure the sealing effect, that is, the elastic deformation of the sealing gasket is used to fill the gap to prevent fluid leakage. This sealing method can achieve a relatively ideal sealing effect in the short term, but in long-term high and low temperature environments, especially in the frequent alternation of high-temperature coolant and low-temperature working conditions in new energy systems, the performance of the sealing gasket is prone to deterioration.

[0003] Existing multi-way valves are sealed by an interference fit method between the partition wall and the sealing gasket. However, the multi-way valve works in a high and low temperature environment for a long time. During the long high and low temperature cycle, the sealing gasket will expand and shrink due to temperature changes. The interference between the sealing gasket and the partition wall cannot be kept within a reasonable range, and the sealing effect is difficult to maintain stably. In addition, the sealing gasket material is prone to plastic deformation when subjected to force. Especially after multiple valve operations, the sealing gasket is unevenly stressed between the flow channel and the partition wall, and may deform downward and contact the side of the partition wall in a normal direction, eventually causing the sealing gasket to collapse and be damaged. Such damage will not only cause internal leakage problems, but also cause the entire multi-way valve to fail, seriously affecting the normal operation of the system. Summary of the invention

[0004] The utility model aims to provide a multi-way valve which is reliable in use.

[0005] In order to achieve one of the above-mentioned purposes of the utility model, the utility model provides a multi-way valve, comprising:

[0006] A valve seat, the valve seat comprising a partition wall for forming a plurality of valve seat flow channels; and

[0007] A spool assembly, the spool assembly abuts against the valve seat and is rotatable relative to the valve seat. Wherein, the spool assembly includes a valve disc and a gasket, the gasket is located between the valve disc and the valve seat, and a flow channel through hole for communicating with the valve seat flow channel is provided on the gasket; a guiding rib is arranged between two adjacent partition walls, the guiding rib extends between the two adjacent partition walls, the top of the partition wall abuts against the gasket, and at least part of the top of the guiding rib abuts against the gasket, wherein at least part of the top of the guiding rib is lower than the top of the partition wall.

[0008] As a further improvement of an embodiment of the present invention, the top of each guiding rib extends along the circumferential direction of the valve seat and towards the direction of any one of the partition walls, from a first position lower than the top of any one of the partition walls to a second position lower than the top of any one of the partition walls, wherein the first position is lower than the second position, and the second position is lower than the top of the partition wall.

[0009] As a further improvement of an embodiment of the present invention, at least part of the top of each guiding rib is flush with the top of the adjacent partition wall on any one side.

[0010] As a further improvement of an embodiment of the present invention, the top of the guiding rib has a guiding surface, the guiding surface extends in an arc shape around the rotation axis of the valve seat, and the guiding surfaces on both sides of at least one partition wall are located on the same circular ring track.

[0011] As a further improvement of an embodiment of the present invention, the guiding rib is respectively joined to the two adjacent partition walls, and the guiding ribs on both sides of each partition wall are located on the same circular ring track.

[0012] As a further improvement of an embodiment of the present invention, at least two guiding ribs are arranged between two adjacent partition walls, and the at least two guiding ribs are arranged at intervals along the radial direction of the valve seat.

[0013] As a further improvement of an embodiment of the present invention, the valve seat further includes side walls forming the plurality of valve seat flow channels, the guiding rib includes an arc portion and a support portion connected to the arc portion, one end of the arc portion is connected to the partition wall, one end of the support portion is connected to the side wall, and the guiding surface is arranged on the arc portion.

[0014] As a further improvement of an embodiment of the present invention, the valve seat further includes side walls forming the plurality of valve seat flow channels, the guiding rib includes an arc portion and a support portion, there is a gap between the arc portion and the two adjacent partition walls, the support portion is connected between the arc portion and the side wall, and the guiding surface is arranged on the arc portion.

[0015] As a further improvement of an embodiment of the present utility model, the top of the guiding rib includes a guiding surface adjacent to the partition wall and a flat surface away from the partition wall, and the sealing gasket is guided by the guiding surface to turn over the top of the partition wall;

[0016] The top of the partition wall includes a top surface and guiding surfaces located on both sides of the top surface. The guiding surface is configured as an inclined surface or an arc surface, and the inclined surface or the arc surface is joined with the guiding surface.

[0017] As a further improvement of an embodiment of the present utility model, the guiding rib includes a transition portion and abutting portions located at both ends of the transition portion. The abutting portions at both ends are respectively connected to two adjacent partition walls, and the height of the abutting portion along the axial direction of the valve seat is greater than the height of the transition portion along the axial direction of the valve seat.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing the guiding rib, the movement of the sealing gasket is effectively guided, avoiding the deformation problem caused by uneven force, and improving the service life of the sealing gasket. The design of the guiding rib avoids the warping deformation caused by excessive contact between the sealing gasket and other surfaces of the partition wall except the top surface, and can control the deformation amount of the sealing gasket within a certain range, thereby reducing the risk of damage to the sealing gasket. The structural design is simple, convenient for processing and production, and reduces the manufacturing cost. The setting of the guiding rib improves the sealing performance of the multi-way valve. Especially in the high and low temperature cycling environment, it can stably control the internal leakage and enhance the reliability and competitiveness of the product. Description of the Drawings

[0019] Figure 1 is a cross-sectional view of a multi-way valve according to an embodiment of the present utility model.

[0020] Figure 2 is Figure 1 a three-dimensional exploded view of the valve seat of the multi-way valve in

[0021] Figure 3 is Figure 1 a top view of the valve seat of the multi-way valve in

[0022] Figure 4 is Figure 3 a cross-sectional view of the valve seat along line A-A in

[0023] Figure 5 is Figure 3 a three-dimensional view of the valve seat in

[0024] Figure 6 is Figure 1 a schematic diagram of another structural form of the valve seat of the multi-way valve in

[0025] Figure 7 is Figure 1 a schematic diagram of another structural form of the valve seat of the multi-way valve in

[0026] Figure 8 is Figure 1 a schematic diagram of yet another structural form of the valve seat of the multi-way valve in

[0027] Figure 9 is Figure 1 a schematic diagram of another structural form of the valve seat of the multi-way valve in

[0028] Figure 10 is Figure 1 a schematic diagram of yet another structural form of the valve seat of the multi-way valve in

[0029] Explanation of the reference numerals in the drawings:

[0030] 100, multi-way valve; 10, valve seat; 11, valve seat flow channel; 12, partition wall; 13, guide rib; 20, valve core assembly; 201, valve core flow channel; 21, valve disc; 22, gasket; 221, flow channel through hole; 131, guide surface; 132, arc portion; 133, support portion; 134, plane; 41, flow channel base; 42, seal; 43, sealing ring; 51, upper cover; 55, output gear; 23, thin film; 223, flange; 123, top surface; 124, guiding surface; 135, transition portion; 136, abutting portion; 101, outer side wall; 102, inner side wall. Detailed implementation manners

[0031] The following will describe the present utility model in detail in conjunction with the specific implementation manners shown in the drawings. However, these implementation manners do not limit the present utility model, and structural, method, or functional transformations made by those of ordinary skill in the art based on these implementation manners are all included within the protection scope of the present utility model.

[0032] It should be understood that spatial relative position terms such as "upper", "above", "lower", "below", etc. used herein are for the purpose of facilitating description to describe the relationship of one unit or feature relative to another unit or feature as shown in the drawings. The spatial relative position terms may be intended to include different orientations of the device in use or operation other than the orientation shown in the figures.

[0033] The multi-way valve in the specific implementation manner of the present utility model is used to control the switching of fluid flow. Refer to Figures 1 to 4As shown in the figure, the multi-way valve 100 includes a valve seat 10 and a valve core assembly 20. The valve seat 10 includes a plurality of valve seat flow channels 11 formed by being separated by partition walls 12. The partition walls 12 separate the flow channels to prevent the mixing of different fluids during the switching process. The valve core assembly 20 abuts against the valve seat 10 and is capable of rotating relative to the valve seat 10. The valve core assembly 20 is provided with a valve core flow channel 201. The rotation of the valve core assembly 20 relative to the valve seat 10 can connect the valve core flow channel 201 with different valve seat flow channels 11, thereby realizing the switching of the flow path. The valve core assembly 20 can be driven to rotate by a driving mechanism. Driven by the driving mechanism, the valve core assembly 20 can be driven to rotate to multiple positions, and each position corresponds to a different flow path, so that the switching of the circulation mode can be carried out.

[0034] Among them, one side of the valve seat 10 is connected to the flow channel base 41, and a seal 42 is provided between the valve seat 10 and the flow channel base 41. The seal 42 is used for the seal between the respective valve seat flow channels 11. The other side of the valve seat 10 is connected to the upper cover 51. The upper cover 51 and the valve seat 10 are connected together by fasteners. The fasteners can be screws, bolts, etc. A sealing ring 43 is provided between the upper cover 51 and the valve seat 10. The valve core assembly 20 is located in the space jointly defined by the upper cover 51 and the valve seat 10. The output end of the driving mechanism includes an output gear 55, and the output gear 55 drives the valve core assembly 20 to rotate relative to the valve seat 10.

[0035] The valve core assembly 20 includes a valve disc 21 and a gasket 22. The gasket 22 is located between the valve disc 21 and the valve seat 10. When switching different flow channels, the gasket 22 ensures the sealing between the flow channels by contacting the partition wall 12. The gasket 22 is provided with flow channel through holes 221 for connecting the valve seat flow channels 11 to ensure that the fluid does not leak when switching between different flow channels.

[0036] Referring to Figure 3 , guide ribs 13 are provided between two adjacent partition walls 12. The guide ribs 13 extend between two adjacent partition walls 12. The top of the partition wall 12 abuts against the gasket 22, and at least part of the top of the guide rib 13 abuts against the gasket 22. Among them, at least part of the top of the guide rib 13 is lower than the top of the partition wall 12.

[0037] By providing the guide ribs 13 between the partition walls 12 of the valve seat 10, and at least part of the top of the guide rib 13 being lower than the top of the partition wall 12, the cooperation between the gasket 22 and the partition wall 12 can not only achieve the sealing of the flow channels, but also limit the excessive deformation of the gasket 22 through the guide ribs 13, preventing the failure of the gasket 22 caused by high and low temperature environments, thereby improving the reliability and sealing performance of the multi-way valve 100.

[0038] A film 23 is provided on the surface of the gasket 22 on the side facing the valve seat 10. A flow passage through-hole 221 for communicating with the valve seat flow passage 11 is provided on the gasket 22. A flange 223 is formed at the edge of the flow passage through-hole 221 facing the partition wall 12. The flange 223 is inclined toward the side away from the partition wall 12, and the film 23 is attached to the flange 223. By providing the film 23, the frictional resistance of the gasket 22 relative to the valve seat 10 during rotation can be reduced, the working load of the driving mechanism can be lowered, and thus the service life of the multi-way valve 100 can be prolonged. The film 23 is attached to the flange 223, and the film 23 bends away from the partition wall 12, preventing the edge of the film 23 corresponding to the flow passage through-hole 221 from directly contacting and colliding with the guide rib 13, so that the edge of the film 23 corresponding to the flow passage through-hole 221 can be prevented from warping due to force.

[0039] The film 23 can be a PTFE film, an ETFE film, an FEP film, a PFA film, a PVDF film, etc. The film 23 can be attached to the gasket 22 through an adhesive, or can be formed on the gasket 22 through other processes. The film 23 is attached to the gasket 22. While guiding the gasket 22, the guide rib 13 can guide the film 23 to turn over the partition wall 12, preventing the edge of the film 23 corresponding to the flow passage through-hole 221 from being deflected by the partition wall 12 and warping or breaking.

[0040] In some embodiments, the top of each guide rib 13 extends along the circumferential direction of the valve seat 10 and toward the partition wall 12 on any one side, from a first position lower than the top of the partition wall 12 on any one side to a second position lower than the top of the partition wall 12 on any one side, wherein the first position is lower than the second position, and the second position is lower than the top of the partition wall 12. The design of the top of the guide rib 13 extending from low to high toward the partition wall 12 on any one side can better guide the movement of the gasket 22 between the partition walls 12, reduce the uneven force on the gasket 22 during rotation, and thus further reduce the deformation and wear of the gasket 22 and prolong the service life of the gasket 22.

[0041] Optionally, the top of each guide rib 13 is at least partially flush with the top of the adjacent partition wall 12 on any one side. The design of the top of the guide rib 13 being flush with the top of the partition wall 12 ensures uniform contact between the gasket 22 and the two, further enhancing the sealing stability and preventing sealing failure caused by excessive local force. This design can ensure that the product still has a good sealing effect under high-pressure or high-temperature working conditions.

[0042] Refer to Figure 5, the top of the guiding rib 13 has a guiding surface 131, the guiding surface 131 extends in an arc shape around the rotation axis of the valve seat 10, and the guiding surfaces 131 on both sides of at least one partition wall 12 are located on the same circular track. By providing the arc-shaped guiding surface 131, it can ensure that the gasket 22 is better guided during the rotational movement of the valve seat 10, reduce the movement resistance of the gasket 22, and improve the smoothness of the multi-way valve 100 during operation. In addition, the design of the arc-shaped guiding surface 131 can prevent the warping phenomenon caused by excessive force on the gasket 22, and further improve the sealing performance.

[0043] Furthermore, the guiding rib 13 is respectively joined to two adjacent partition walls 12, and the guiding ribs 13 on both sides of each partition wall 12 are located on the same circular track. In this way, the two ends of the guiding rib 13 are respectively connected to two adjacent partition walls 12, and the guiding rib 13 can form a circular ring joined at the partition wall 12. The guiding rib 13 is designed as a continuous rib, and the joining design of the guiding rib 13 with both sides of the partition wall 12 enhances the structural stability of the guiding rib 13, ensuring that the guiding rib 13 will not deform or shift when the multi-way valve 100 is switched. This helps to maintain the precise movement path of the gasket 22 and ensure the durability of the sealing performance.

[0044] Optionally, at least two guiding ribs 13 are provided between two adjacent partition walls 12, and the at least two guiding ribs 13 are arranged at intervals along the radial direction of the valve seat 10. In this way, the guiding ribs 13 can form at least two circular rings joined at the partition wall 12, which can further improve the stability of the gasket 22 and avoid the wear or deformation of the gasket 22 caused by excessive local contact. Moreover, the at least two guiding ribs 13 arranged at intervals in the radial direction can disperse the force on the gasket 22 and improve the compressive performance of the overall structure.

[0045] Refer to Figure 5 , the top of the guiding rib 13 includes a guiding surface 131 adjacent to the partition wall 12 and a flat surface 134 away from the partition wall 12, and the gasket 22 is turned over the top of the partition wall 12 under the guidance of the guiding surface 131; the top of the partition wall 12 includes a top surface 123 and guiding surfaces 124 on both sides of the top surface 123, and the guiding surface 131 is configured as an inclined surface or an arc surface, and the inclined surface or the arc surface is joined to the guiding surface 124. The gasket 22 is guided by the guiding surface 131 of the guiding rib 13 to ensure that it smoothly straddles the top of the partition wall 12 during rotation, avoiding the deformation of the gasket 22 caused by violent movement or uneven force. In addition, the inclined surface or arc surface design of the guiding surface 131 makes the force on the gasket 22 more uniform when straddling the partition wall 12, reducing the risk of seal failure.

[0046] Optionally, the guiding rib 13 includes a transition portion 135 and abutting portions 136 located at both ends of the transition portion 135. The abutting portions 136 at both ends are respectively connected to two adjacent partition walls 12. The height of the abutting portion 136 along the axial direction of the valve seat 10 is greater than the height of the transition portion 135 along the axial direction of the valve seat 10. By providing the abutting portion 136 and the transition portion 135, the structural stability of the guiding rib 13 is ensured. The connection between the abutting portion 136 and the partition wall 12 enhances the mechanical strength of the guiding rib 13, while the transition portion 135 can reduce the stress concentration on the guiding rib 13 during movement, thereby extending the service life of the entire valve structure, especially having higher durability in a high-load working environment. Refer to Figure 6 , in some embodiments, the valve seat 10 further includes side walls forming a plurality of valve seat flow channels 11. The guiding rib 13 includes an arc portion 132 and a supporting portion 133 connected to the arc portion 132. One end of the arc portion 132 is connected to the partition wall 12, and one end of the supporting portion 133 is connected to the side wall. The guiding surface 131 is provided on the arc portion 132, and the flat surface 134 can be provided on the supporting portion 133. The side wall can be the outer side wall 101 or the inner side wall 102. Through the combined design of the arc portion 132 and the supporting portion 133, the guiding rib 13 can not only provide good guidance for the gasket 22, but also enhance the mechanical strength of the guiding rib 13 through the connection between the supporting portion 133 and the side wall. One end of the guiding rib 13 is connected to the partition wall 12, and the other end of the guiding rib 13 is connected to the side wall, enhancing the stability of the overall structure, thereby reducing the detachment or deformation of the gasket 22 caused by external forces.

[0047] Refer to Figure 7 and Figure 8 , in some embodiments, the valve seat 10 further includes side walls forming a plurality of valve seat flow channels 11. The guiding rib 13 includes an arc portion 132 and a supporting portion 133. There is a gap between the arc portion 132 and each of the two adjacent partition walls 12. The supporting portion 133 is connected between the arc portion 132 and the side wall. The guiding surface 131 is provided on the arc portion 132, and the flat surface 134 can be provided between the supporting portion 133 and the arc portions 132 at both ends. The gap design between the arc portion 132 and the partition wall 12 allows the gasket 22 to obtain a more flexible movement space during the guiding process, reducing its friction with the guiding rib 13, thereby reducing the wear of the gasket 22 and extending its service life.

[0048] Among them, refer to Figure 7 as shown, the guiding rib 13 is U-shaped, and both ends of the guiding rib 13 are connected to the side wall on the same side. For example, both ends of the guiding rib 13 are connected to the outer side wall 101. The overall structure of the guiding rib 13 is stable and can provide good guidance for the gasket 22.

[0049] In addition, refer to Figure 8As shown, the guiding rib 13 is T-shaped, and both ends of the guiding rib 13 are set as free ends. The middle part of the guiding rib 13 extends to engage with a side wall, for example, the middle part of the guiding rib 13 extends to engage with the outer side wall 101. The setting of the guiding rib 13 allows the gasket 22 to obtain a more flexible movement space during the guiding process.

[0050] Referring to Figure 9 , in some embodiments, the valve seat 10 further includes side walls forming a plurality of valve seat flow channels 11. The guiding rib 13 is disposed between two adjacent partition walls 12, and there is a gap between the guiding rib 13 and each of the two adjacent partition walls 12. The guiding rib 13 is configured to extend along the radial direction of the valve seat 10. One end of the guiding rib 13 engages with the outer side wall 101, and the other end of the guiding rib 13 engages with the inner side wall 102. A plurality of guiding ribs 13 may be provided between two adjacent partition walls 12, and the plurality of guiding ribs 13 are spaced along the circumferential direction of the valve seat 10. At least a part of the top of the guiding rib 13 is flush with the top of the partition wall 12 on any adjacent side or lower than the top of the partition wall 12. The radially extending guiding rib 13 can provide a larger-span radial support for the gasket 22, thereby preventing the gasket 22 from deforming and extending its service life.

[0051] Referring to Figure 10 , in some embodiments, the valve seat 10 further includes side walls forming a plurality of valve seat flow channels 11. The guiding rib 13 is disposed between two adjacent partition walls 12, and the guiding rib 13 is in a hollow shape between the two adjacent partition walls 12 and between the outer side wall 101 and the inner side wall 102, that is, the valve seat flow channels 11 are separated by the guiding rib 13 to form a plurality of pores, and the plurality of pores are spaced both along the radial direction and the circumferential direction of the valve seat 10. Among them, two adjacent pores along the radial direction may be arranged in a circumferential dislocation. In addition, two adjacent pores along the radial direction may have different sizes. At least a part of the top of the guiding rib 13 is flush with the top of the partition wall 12 on any adjacent side or lower than the top of the partition wall 12. The hollow guiding rib 13 can provide support at multiple positions for the gasket 22, thereby preventing the gasket 22 from deforming and extending its service life.

[0052] The multi-way valve 100 provided by the present utility model limits the excessive deformation of the gasket 22 by providing the guiding rib 13 between the partition walls 12 of the valve seat 10, prevents the damage of the gasket 22 caused by long-term working in high and low temperature environments, thereby improving the sealing performance and reliability of the multi-way valve 100. The multi-way valve 100 has a simple structure. Through a reasonable design of the guiding rib 13, the movement of the gasket 22 is guided, effectively avoiding the deformation and warping of the gasket 22 due to uneven force at the flow port, and ensuring the smoothness of the switching of the multi-way valve 100 and the effective control of the fluid.

[0053] It should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0054] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-way valve, comprising: A valve seat, the valve seat including partition walls that divide to form a plurality of valve seat flow channels; and A valve core assembly, the valve core assembly being in abutment with the valve seat and capable of rotating relative to the valve seat, wherein the valve core assembly includes a valve disc and a gasket, the gasket being located between the valve disc and the valve seat, and flow channel through holes for communicating the valve seat flow channels are provided on the gasket; characterized in that Guide ribs are provided between two adjacent partition walls, the guide ribs extending between the two adjacent partition walls, the top of the partition wall being in abutment with the gasket, and at least part of the top of the guide rib being in abutment with the gasket, wherein at least part of the top of the guide rib is lower than the top of the partition wall.

2. The multi-way valve according to claim 1, wherein The top of each guide rib extends along the circumferential direction of the valve seat and towards the direction of any one of the partition walls, from a first position lower than the top of any one of the partition walls to a second position lower than the top of any one of the partition walls, wherein the first position is lower than the second position, and the second position is lower than the top of the partition wall.

3. The multi-way valve according to claim 1, characterized in that, At least part of the top of each guide rib is flush with the top of the adjacent partition wall on any one side.

4. The multi-way valve according to claim 1, characterized in that, The top of the guide rib has a guide surface, the guide surface extending in an arc shape around the rotation axis of the valve seat, and the guide surfaces on both sides of at least one partition wall are located on the same circular ring track.

5. The multi-way valve according to claim 4, characterized in that, The guide rib is respectively joined to the two adjacent partition walls, and the guide ribs on both sides of each partition wall are located on the same circular ring track.

6. The multi-way valve according to claim 5, characterized in that At least two of the guide ribs are provided between two adjacent partition walls, and the at least two guide ribs are spaced apart along the radial direction of the valve seat.

7. The multi-way valve according to claim 4, characterized in that, The valve seat further includes side walls forming the plurality of valve seat flow channels, the guide rib including an arc portion and a support portion connected to the arc portion, one end of the arc portion being connected to the partition wall, and one end of the support portion being connected to the side wall, the guide surface being provided on the arc portion.

8. The multi-way valve according to claim 4, characterized in that, The valve seat further includes side walls forming the plurality of valve seat flow channels, the guide rib including an arc portion and a support portion, there being a gap between the arc portion and each of the two adjacent partition walls, the support portion being connected between the arc portion and the side wall, the guide surface being provided on the arc portion.

9. The multi-way valve according to any one of claims 1 to 8, characterized in that The top of the guide rib includes a guide surface adjacent to the partition wall and a flat surface away from the partition wall, and the gasket is guided by the guide surface to turn over the top of the partition wall; The top of the partition wall includes a top surface and guide surfaces on both sides of the top surface, the guide surface being configured as an inclined surface or an arc surface, and the inclined surface or the arc surface being joined to the guide surface.

10. The multi-way valve according to any one of claims 1 to 3, characterized in that, The guide rib includes a transition portion and abutting portions at both ends of the transition portion, the abutting portions at both ends being respectively connected to the two adjacent partition walls, and the height of the abutting portion along the axial direction of the valve seat is greater than the height of the transition portion along the axial direction of the valve seat.

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