Valve core and multi-way valve

Abstract

This invention provides a valve core and a multi-way valve. The valve core includes: a main body, which has a columnar structure, with multiple cavities distributed on its outer periphery, each cavity opening towards the outside of the valve core; and multiple arc-shaped ribs arranged side-by-side on the solid structure of the outer periphery of the main body, each arc-shaped rib extending circumferentially along the main body. Through the technical solution provided by this invention, the multiple arc-shaped surfaces formed by the outer edges of the arc-shaped ribs form a rotating mating surface along the circumferential direction. The rotating mating surface is in contact with an external rotating limiting surface and rotates within the rotating limiting surface. Compared with the prior art where the rotating mating surface of the valve core is directly in contact with the rotating limiting surface, the contact area between the rotating mating surface formed by the arc-shaped ribs and the rotating limiting surface is smaller than the contact area formed directly between the outer wall of the main body and the rotating limiting surface. This reduces the friction and rotational resistance generated between the valve core body and the rotating limiting surface during rotation, thereby improving the rotational efficiency of the valve core.

Description

Technical Field

[0001] This invention relates to the field of multi-way valve technology, and more specifically, to a valve core and a multi-way valve. Background Technology

[0002] Currently, multi-way valves in existing technologies mainly achieve multi-condition switching or flow regulation by rotating the valve core within the main body. However, in existing multi-way valves, taking a five-way valve as an example, the outer wall of the valve core is the rotation mating surface, and the inner wall of the main body is the rotation limiting surface. The outer wall of the valve core and the inner wall of the main body are in a limiting fit. During the rotation of the valve core, the contact area between the outer wall of the valve core and the inner wall of the main body, i.e., the contact area between the rotation mating surface and the rotation limiting surface, is relatively large. This increases the friction between the valve core and the main body, which in turn increases the rotation resistance of the valve core and affects the rotation efficiency. Summary of the Invention

[0003] This invention provides a valve core and a multi-way valve to solve the problem of high rotational resistance of valve cores in the prior art.

[0004] To address the aforementioned problems, according to one aspect of the present invention, a valve core is provided, comprising: a main body having a columnar structure, a plurality of cavities distributed on the outer periphery of the main body, each cavity having an opening facing the outside of the valve core; and a plurality of arc-shaped ribs arranged side-by-side on the solid structure on the outer periphery of the main body, each arc-shaped rib extending circumferentially along the main body.

[0005] Furthermore, the main body includes a bushing, two circular end plates, multiple axial partitions, multiple sector partitions, a first arc plate, and a second arc plate. The two circular end plates are arranged in parallel and are fixedly connected to the bushing. The two circular end plates and the bushing are coaxial. The first arc plate, the second arc plate, the multiple axial partitions, and the multiple sector partitions are distributed in the space between the two circular end plates to divide the space between the two circular end plates into multiple cavities. Multiple arc-shaped ribs are distributed on the first arc plate and the second arc plate.

[0006] Furthermore, the axes of the first arc-shaped plate and the second arc-shaped plate are both coaxially arranged with the bushing, and the multiple arc-shaped ribs include: multiple first ribs, which are arranged side by side on the outer side of the first arc-shaped plate, and each first rib extends circumferentially along the main body; and multiple second ribs, which are arranged side by side on the outer side of the second arc-shaped plate, and each second rib extends circumferentially along the main body.

[0007] Furthermore, the multiple cavities include a first cavity, a second cavity, a third cavity, and a fourth cavity. The first cavity includes a first main cavity and a first second main cavity that are interconnected. The third cavity includes a third main cavity and a third second main cavity that are interconnected. The second cavity includes a second main cavity and a second second main cavity that are interconnected. The fourth cavity includes a fourth main cavity and a fourth second main cavity that are interconnected. The main body includes a first axial region, a second axial region, and a third axial region arranged sequentially in the axial direction. The first main cavity and the second main cavity are both located in the first axial region. The first second main cavity, the third first main cavity, the fourth first main cavity, and the second second main cavity are all located in the second axial region. The third second main cavity and the fourth second main cavity are both located in the third axial region.

[0008] Furthermore, the valve core includes, in the circumferential direction, a first sector area, a second sector area, a third sector area, a fourth sector area, a fifth sector area, a sixth sector area, a seventh sector area, and an eighth sector area arranged sequentially; wherein, the first main cavity is distributed in the first and second sector areas, the first and second main cavities are distributed in the first and second sector areas, the third main cavity is distributed in the third and fourth sector areas, the third and second main cavities are distributed in the second and third sector areas, the second main cavity is distributed in the seventh and eighth sector areas, the second and second main cavities are distributed in the seventh and eighth sector areas, the fourth main cavity is distributed in the fifth and sixth sector areas, and the fourth and second main cavities are distributed in the sixth and seventh sector areas.

[0009] Furthermore, in the axial direction of the valve core, the lengths of the first axial region, the second axial region, and the third axial region are equal; in the circumferential direction of the valve core, the arcs of the first sector region, the second sector region, the third sector region, the fourth sector region, the fifth sector region, the sixth sector region, the seventh sector region, and the eighth sector region are equal.

[0010] Furthermore, the valve core also includes: a rotating shaft, a portion of which is located inside the bushing and the rotating shaft and the bushing are fixedly connected, with one end of the rotating shaft located outside the bushing; and a limiting block, which protrudes from a circular end plate and is used to cooperate with the limiting structure in the multi-way valve to limit the rotation range of the valve core.

[0011] According to another aspect of the present invention, a multi-way valve is provided, the multi-way valve including a main body and the valve core described above, the main body having a valve cavity and a plurality of inlets and outlets, and the valve core being rotatably disposed within the valve cavity to switch the connection status of the plurality of inlets and outlets.

[0012] Furthermore, the main body includes a valve body and a sealing gasket. The valve body has a valve cavity, and the sealing gasket is disposed inside the valve cavity. Multiple inlets and outlets are disposed inside the sealing gasket.

[0013] Furthermore, the sealing gasket includes a third arc-shaped plate, axial ribs, and circumferential ribs. Multiple inlets and outlets are distributed on the third arc-shaped plate. Multiple axial ribs extend axially along the valve core and are arranged side by side on the side of the third arc-shaped plate facing the inner wall of the valve cavity. Multiple circumferential ribs extend circumferentially along the valve core and are arranged side by side on the side of the third arc-shaped plate facing the inner wall of the valve cavity.

[0014] Furthermore, the spacing between two adjacent circumferential ribs is greater than the spacing between two adjacent axial ribs; each inlet and outlet is surrounded by two circumferential ribs and two axial ribs.

[0015] The present invention provides a valve core comprising: a main body, which is a columnar structure, with multiple cavities distributed on its outer periphery, each cavity opening towards the outside of the valve core; and multiple arc-shaped ribs arranged side-by-side on the solid structure of the outer periphery of the main body, each arc-shaped rib extending circumferentially along the main body. This design involves arc-shaped ribs on the main body of the valve core. On a plane perpendicular to the axial direction of the main body, the arc-shaped ribs are wavy. Multiple arc-shaped surfaces formed along the outer edges of the arc-shaped ribs form a rotating mating surface along the circumferential direction. This rotating mating surface is in contact with an external rotating limiting surface and rotates within the rotating limiting surface. Compared to the prior art where the rotating mating surface of the valve core directly contacts the rotating limiting surface, the contact area between the rotating mating surface formed by the arc-shaped ribs and the rotating limiting surface is smaller than the contact area formed directly between the outer wall of the main body and the rotating limiting surface. This reduces the frictional force generated between the valve core body and the rotating limiting surface during rotation, lowers the rotational resistance of the valve core, and improves the rotational efficiency of the valve core. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the valve core provided in an embodiment of the present invention is shown;

[0018] Figure 2 It shows Figure 1 A structural schematic diagram of the valve core from another perspective;

[0019] Figure 3 It shows Figure 1 A schematic diagram of the circumferential unfolding of the valve core;

[0020] Figure 4 It shows Figure 3 A schematic diagram of the valve core's regional division;

[0021] Figure 5A schematic diagram of the structure of a multi-way valve provided in another embodiment of the present invention is shown;

[0022] Figure 6 It shows Figure 5 Exploded view of a portion of the structure of a multi-way valve;

[0023] Figure 7 It shows Figure 5 A schematic diagram of the main body of a multi-way valve;

[0024] Figure 8 It shows Figure 5 A schematic diagram of the sealing gasket structure of a multi-way valve;

[0025] Figure 9 It shows Figure 5 A cross-sectional view of the main body and valve core of a multi-way valve;

[0026] Figure 10 It shows Figure 9 A magnified view of the selected location;

[0027] Figure 11 It shows Figure 5 Another cross-sectional view of the body and valve core of the multi-way valve;

[0028] Figure 12 It shows Figure 11 A magnified view of the selected location.

[0029] The above figures include the following reference numerals:

[0030] 10. Main body; 111. Second outlet; 112. First outlet; 113. First inlet; 114. Second inlet; 115. Third outlet; 116. Fourth outlet; 12. Valve cavity; 13. Arc-shaped groove; 14. Valve body; 15. Sealing gasket; 151. Arc-shaped plate; 152. Axial rib; 153. Circumferential rib; 16. Arc-shaped baffle;

[0031] 20. Valve core; 21. Body; 211. First cavity; 2111. First main cavity; 2112. First and second main cavities; 212. Second cavity; 2121. Second main cavity; 2122. Second and second main cavities; 213. Third cavity; 2131. Third main cavity; 2132. Third and second main cavities; 214. Fourth cavity; 2141. Fourth main cavity; 2142. Fourth and second main cavities; 22. Arc-shaped rib; 23. Rotating shaft; 24. Limiting block; 251 252. First axial region; 253. Second axial region; 254. Third axial region; 265. First sector region; 266. Second sector region; 267. Third sector region; 268. Fourth sector region; 269. Fifth sector region; 260. Sixth sector region; 261. Seventh sector region; 262. Eighth sector region; 271. Bushing; 272. Circular end plate; 273. Axial partition; 274. Sector partition; 285. First arc plate; 286. Second arc plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 4 As shown, an embodiment of the present invention provides a valve core 20, which includes: a main body 21, the main body 21 having a columnar structure, a plurality of cavities distributed on the outer periphery of the main body 21, the opening of each cavity facing the outside of the valve core; a plurality of arc-shaped ribs 22, the plurality of arc-shaped ribs 22 being arranged side by side on the solid structure on the outer periphery of the main body 21, each arc-shaped rib 22 extending along the circumference of the main body 21.

[0034] In this embodiment, an arc-shaped rib 22 is provided on the main body 21 of the valve core. On a plane perpendicular to the axial direction of the main body 21, the arc-shaped rib 22 is wavy. Multiple arc-shaped surfaces formed by the outer edges of the arc-shaped rib 22 form a rotating mating surface along the circumferential direction. The rotating mating surface is in contact with the external rotating limiting surface and rotates within the rotating limiting surface. Compared to the prior art where the rotating mating surface of the valve core is directly in contact with the rotating limiting surface, the contact area between the rotating mating surface formed by the arc-shaped rib 22 and the rotating limiting surface is smaller than the contact area formed directly between the outer wall of the main body 21 and the rotating limiting surface. This reduces the frictional force generated between the valve core main body 21 and the rotating limiting surface during rotation, lowers the rotational resistance of the valve core, and improves the rotational efficiency of the valve core. In this embodiment, the arc-shaped rib 22 is integrally formed with the main body 21.

[0035] like Figure 1 and Figure 2 As shown, the main body 21 includes a bushing 271, two circular end plates 272, multiple axial partitions 273, multiple fan-shaped partitions 274, a first arc plate 281, and a second arc plate 282. The two circular end plates 272 are arranged in parallel and are fixedly connected to the bushing 271. The two circular end plates 272 and the bushing 271 are coaxially arranged. The first arc plate 281, the second arc plate 282, the multiple axial partitions 273, and the multiple fan-shaped partitions 274 are distributed in the space between the two circular end plates 272 to divide the space between the two circular end plates 272 into multiple cavities. Multiple arc-shaped ribs 22 are distributed on the first arc plate 281 and the second arc plate 282.

[0036] In this embodiment, the main body 21 frame is formed by the bushing 271 and the circular end plates 272 at both ends. Multiple axial partitions 273 and multiple sector-shaped partitions 274 divide the internal space of the main body 21 frame in the axial and radial directions, forming multiple cavities. This arrangement ensures that the multiple cavities are spaced apart in the axial and radial directions of the main body 21, guaranteeing the performance of the valve core. Multiple arc-shaped ribs 22 provided on the first arc-shaped plate 281 and the second arc-shaped plate 282 improve the structural strength and sealing effect of the valve core, and reduce the rotational resistance of the valve core.

[0037] Optionally, each axial partition 273 and each sector partition 274 is connected to the bushing 271, and each sector partition 274 is connected to at least two axial partitions 273. This arrangement facilitates the installation and positioning of the axial partitions 273 and sector partitions 274, and the connection of each sector partition 274 to at least two axial partitions 273 ensures the limiting and support of the sector partition 274, thereby guaranteeing the stability and reliability of the structure.

[0038] Specifically, the axes of the first arc-shaped plate 281 and the second arc-shaped plate 282 are both coaxially arranged with the bushing 271. The plurality of arc-shaped ribs 22 include: a plurality of first ribs, arranged side-by-side on the outer side of the first arc-shaped plate 281, each extending circumferentially along the main body 21; and a plurality of second ribs, arranged side-by-side on the outer side of the second arc-shaped plate 282, each extending circumferentially along the main body 21. This arrangement ensures that the first arc-shaped plate 281, the second arc-shaped plate 282, and the bushing 271 can rotate coaxially.

[0039] Optionally, the outer diameter of the first rib is equal to the outer diameter of the fan-shaped partition 274 and the outer diameter of the circular end plate 272, and the outer diameter of the second rib is equal to the outer diameter of the fan-shaped partition 274 and the outer diameter of the circular end plate 272. This ensures that the rotational mating surface formed by the first rib and the second rib is flush with the outer wall of the main body 21.

[0040] Furthermore, the multiple cavities include a first cavity 211, a second cavity 212, a third cavity 213, and a fourth cavity 214. The first cavity 211 includes a first main cavity 2111 and a first second main cavity 2112 that are interconnected. The third cavity 213 includes a third main cavity 2131 and a third second main cavity 2132 that are interconnected. The second cavity 212 includes a second main cavity 2121 and a second second main cavity 2122 that are interconnected. The fourth cavity 214 includes a fourth main cavity 214 that is interconnected. 1 and the fourth main cavity 2142; the main body 21 includes a first axial region 251, a second axial region 252 and a third axial region 253 arranged sequentially in the axial direction, wherein the first main cavity 2111 and the second main cavity 2121 are both located in the first axial region 251, the first second main cavity 2112, the third first main cavity 2131, the fourth first main cavity 2141 and the second second main cavity 2122 are all located in the second axial region 252, and the third second main cavity 2132 and the fourth second main cavity 2142 are both arranged in the third axial region 253.

[0041] In this embodiment, the main body 21 includes three layers: a first axial region 251, a second axial region 252, and a third axial region 253. Multiple cavities with flow relationships, namely the first cavity 211, the second cavity 212, the third cavity 213, and the fourth cavity 214, are confined within the first axial region 251, the second axial region 252, and the third axial region 253. This arrangement ensures that the two interconnected segments within each cavity are axially spaced. Rotation of the main body 21 enables communication between different cavities and different inlets / outlets, thereby achieving the purpose of operating condition switching and flow regulation, integrating the multi-operating condition switching and flow regulation functions of the valve core.

[0042] Optionally, such as Figure 3 and Figure 4The third main cavity 2132 shown includes a first sub-cavity C2 and a second sub-cavity C3 that are interconnected. The second sub-cavity C3 is connected to the third main cavity 2131. The fourth main cavity 2142 includes a third sub-cavity C6 and a fourth sub-cavity C7 that are interconnected. The third sub-cavity C6 is connected to the fourth main cavity 2141. In the circumferential direction of the valve core, the first arc plate 281, the first sub-cavity C2, the second sub-cavity C3, the second arc plate 282, the third sub-cavity C6, and the fourth sub-cavity C7 are arranged sequentially. The first main cavity 2111 includes interconnected sub-cavities A1 and A2; the first second main cavity 2112 includes interconnected sub-cavities B1 and B2; the third main cavity 2131 includes interconnected sub-cavities B3 and B4; the fourth main cavity 2141 includes interconnected sub-cavities B5 and B6; the second main cavity 2121 includes interconnected sub-cavities A7 and A8; and the second second main cavity 2122 includes interconnected sub-cavities B7 and B8.

[0043] Specifically, the valve core includes, in the circumferential direction, a first sector area 261, a second sector area 262, a third sector area 263, a fourth sector area 264, a fifth sector area 265, a sixth sector area 266, a seventh sector area 267, and an eighth sector area 268 arranged sequentially; wherein, the first main cavity 2111 is distributed in the first sector area 261 and the second sector area 262, the first second main cavity 2112 is distributed in the first sector area 261 and the second sector area 262, and the third main cavity 2131 is distributed in the third sector area 264. Sector 263 and fourth sector 264, third secondary main cavities 2132 are distributed in second sector 262 and third sector 263, second primary main cavities 2121 are distributed in seventh sector 267 and eighth sector 268, second secondary main cavities 2122 are distributed in seventh sector 267 and eighth sector 268, fourth primary main cavity 2141 is distributed in fifth sector 265 and sixth sector 266, and fourth secondary main cavities 2142 are distributed in sixth sector 266 and seventh sector 267. In this embodiment, the main body 21 includes eight columns of sector 261, second sector 262, third sector 263, fourth sector 264, fifth sector 265, sixth sector 266, seventh sector 267 and eighth sector 268, and the multiple cavities with flow relationships are defined within the multiple sector areas. This configuration allows the two interconnected segments within each cavity to be radially spaced apart. By rotating the main body 21, different cavities and different inlets / outlets can be connected, thereby achieving the purpose of switching operating conditions and regulating flow.

[0044] Furthermore, in the axial direction of the valve core, the lengths of the first axial region 251, the second axial region 252, and the third axial region 253 are equal; in the circumferential direction of the valve core, the curvatures of the first sector region 261, the second sector region 262, the third sector region 263, the fourth sector region 264, the fifth sector region 265, the sixth sector region 266, the seventh sector region 267, and the eighth sector region 268 are equal. In this embodiment, by limiting the lengths of the first axial region 251, the second axial region 252, and the third axial region 253 to be equal, the communication area between the cavity and the outside world in each axial region of the main body 21 is limited to be the same; by limiting the curvatures of multiple sector regions to be equal, the rotation angle of the main body 21 corresponding to each sector region is ensured to be the same, thus ensuring the reliability of the rotation of the valve core 20.

[0045] Optionally, the main body 21 also includes multiple reinforcing ribs, which are distributed on at least one circular end plate 272; wherein the bushing 271, the circular end plate 272, the axial partition 273, the fan-shaped partition 274 and the reinforcing ribs are an integral structure.

[0046] Specifically, the valve core also includes: a rotating shaft 23, a portion of which is located within the bushing 271 and is fixedly connected to the bushing 271, with one end of the rotating shaft 23 located outside the bushing 271; and a limiting block 24, protruding from a circular end plate 272. The limiting block 24 is used to cooperate with the limiting structure in the multi-way valve to limit the rotation range of the valve core. With this configuration, the end of the rotating shaft 23 located outside the bushing 271 is connected to an external input device. The rotation of the rotating shaft 23 drives the bushing 271 to rotate, which in turn drives the main body 21 to rotate. By setting the limiting block 24, the rotation angle range of the main body 21 can be limited, preventing excessive rotation of the main body 21 that could cause the valve core 20 to fail.

[0047] like Figures 5 to 12 As shown, another embodiment of the present invention provides a multi-way valve, which includes a main body 10 and the valve core 20 described above. The main body 10 has a valve cavity 12 and multiple inlets and outlets. The valve core 20 is rotatably disposed in the valve cavity 12 to switch the connection status of the multiple inlets and outlets.

[0048] Optionally, the multi-way valve is a five-way valve with multiple inlets and outlets including a first inlet 113, a second inlet 114, a first outlet 112, a second outlet 111, a third outlet 115, and a fourth outlet 116. The five-way valve can be switched to any of the following operating conditions by rotating the valve core: First condition: the first inlet 113 is connected to the first outlet 112 via the first chamber 211; the second inlet 114 is connected to the third outlet 115 via the third chamber 213; the second outlet 111 and the fourth outlet 116 are disconnected. Second condition: the first inlet 113 is connected to the first outlet 112 via the first chamber 211; the second inlet 114 is connected to both the third outlet 115 and the fourth outlet 116 via the third chamber 213; the second outlet 111 is disconnected. Third condition: the first inlet 113 is connected to the first outlet 112 via the first chamber 211. In the first operating condition, the second inlet 114 is connected to the fourth outlet 116 through the third cavity 213, and the third outlet 115 and the second outlet 111 are disconnected; in the second operating condition, the second inlet 114 is connected to the second outlet 111 through the second cavity 212, and the first inlet 113 is connected to the third outlet 115 through the fourth cavity 214, and the first outlet 112 and the fourth outlet 116 are disconnected; in the fifth operating condition, the second inlet 114 is connected to the second outlet 111 through the second cavity 212, and the first inlet 113 is connected to both the third outlet 115 and the fourth outlet 116 through the fourth cavity 214, and the first outlet 112 is disconnected; in the sixth operating condition, the second inlet 114 is connected to the second outlet 111 through the second cavity 212, and the first inlet 113 is connected to the fourth outlet 116 through the fourth cavity 214, and the first outlet 112 and the third outlet 115 are disconnected.

[0049] Optionally, the bottom wall of the valve cavity 12 has an arc-shaped groove 13, which is arranged around the axis of the valve core 20, and the limiting block 24 is located within the arc-shaped groove 13. The rotation angle range of the limiting block 24 is greater than the angle of the arc-shaped groove 13, so as to ensure that the arc-shaped groove 13 and the limiting block 24 limit the rotation of the valve core 20 without affecting the rotation range of the valve core 20 within the arc-shaped groove 13.

[0050] like Figure 7 and Figure 8 As shown, the main body 10 includes a valve body 14 and a sealing gasket 15. The valve body 14 has a valve cavity 12, and the sealing gasket 15 is disposed in the valve cavity 12. Multiple inlets and outlets are disposed in the sealing gasket 15.

[0051] In this embodiment, the valve body 14 has six flow channels communicating with the valve cavity 12. These six flow channels are respectively connected to the first inlet 113, the second inlet 114, the first outlet 112, the second outlet 111, the third outlet 115, and the fourth outlet 116. This arrangement ensures that the six flow channels are connected to the six inlets and outlets, and further facilitates external connection to the five-way valve via external connecting pipes. Simultaneously, two arc-shaped baffles 16 on the inner wall of the valve cavity 12 limit the movement of the sealing gasket 15, ensuring communication between the flow channels and the inlets and outlets, and guaranteeing the reliability of the five-way valve.

[0052] Optionally, the main body 10 also includes two arc-shaped baffles 16 disposed on the inner wall of the valve cavity 12, the two arc-shaped baffles 16 respectively abutting against the two ends of the sealing gasket 15 in the circumferential direction. In this configuration, the sealing gasket 15 is limited by the two arc-shaped baffles 16 to prevent the sealing gasket 15 from rotating within the valve cavity 12.

[0053] like Figures 8 to 10 As shown, the sealing gasket 15 includes a third arc-shaped plate 151, axial ribs 152, and circumferential ribs 153. Multiple inlets and outlets are distributed on the third arc-shaped plate 151. Multiple axial ribs 152 extend axially along the valve core 20 and are arranged side-by-side on the side of the third arc-shaped plate 151 facing the inner wall of the valve cavity 12. Multiple circumferential ribs 153 extend circumferentially along the valve core 20 and are arranged side-by-side on the side of the third arc-shaped plate 151 facing the inner wall of the valve cavity 12. In this embodiment, by providing multiple axial ribs 152 and multiple circumferential ribs 153, an elastic margin can be provided to supplement the seal between the sealing gasket 15 and the valve cavity 12, making the sealing gasket 15 easier to compress, reducing the rebound force of the sealing gasket 15 on the internal valve core 20, thereby reducing the torque required for the rotation of the valve core 20, reducing wear on both sides of the sealing gasket 15, and improving the sealing reliability of the sealing gasket 15.

[0054] Optionally, the inner side of the third arc-shaped plate 151 is in contact with the outer peripheral surface of the valve core 20, and the axial ribs 152 and the circumferential ribs 153 are in contact with the inner wall of the valve cavity 12.

[0055] Specifically, such as Figure 11 and Figure 12 As shown, the multiple arc-shaped ribs 22 of the valve core 20 abut against the inner wall of the sealing gasket 15, reducing the contact area between the valve core 20 and the sealing gasket 15, reducing rotational friction and rotational torque, thereby reducing the wear of the valve core 20 and the sealing gasket 15 and extending the service life of the valve core 20 and the sealing gasket 15.

[0056] Furthermore, the spacing between two adjacent circumferential ribs 153 is greater than the spacing between two adjacent axial ribs 152; each inlet and outlet is surrounded by two circumferential ribs 153 and two axial ribs 152. This arrangement improves the reliability of the seal between the valve core 20, the sealing gasket 15, and the valve body 14.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A valve core, characterized in that, The valve core includes: The main body (21) is a columnar structure, and multiple cavities are distributed on the outer periphery of the main body (21), with the opening of each cavity facing the outside of the valve core; Multiple arc-shaped ribs (22) are arranged side by side on the solid structure on the outer periphery of the main body (21), and each arc-shaped rib (22) extends along the circumference of the main body (21); The main body (21) includes a bushing (271), two circular end plates (272), multiple axial partitions (273), multiple fan-shaped partitions (274), a first arc plate (281), and a second arc plate (282). The two circular end plates (272) are arranged in parallel and are fixedly connected to the bushing (271). The two circular end plates (272) and the bushing (271) are coaxially arranged. The first arc plate (281), the second arc plate (282), the multiple axial partitions (273), and the multiple fan-shaped partitions (274) are distributed in the space between the two circular end plates (272) to divide the space between the two circular end plates (272) into multiple cavities. Multiple arc-shaped ribs (22) are distributed on the first arc plate (281) and the second arc plate (282). The plurality of cavities include a first cavity (211), a second cavity (212), a third cavity (213), and a fourth cavity (214), wherein the first cavity (211) includes a first main cavity (2111) and a first second main cavity (2112) that are interconnected, the third cavity (213) includes a third main cavity (2131) and a third second main cavity (2132) that are interconnected, the second cavity (212) includes a second main cavity (2121) and a second second main cavity (2122) that are interconnected, and the fourth cavity (214) includes a fourth main cavity (2141) and a fourth second main cavity (2142) that are interconnected. The main body (21) includes a first axial region (251), a second axial region (252) and a third axial region (253) arranged sequentially in the axial direction. The first main cavity (2111) and the second main cavity (2121) are both located in the first axial region (251). The first second main cavity (2112), the third main cavity (2131), the fourth main cavity (2141) and the second second main cavity (2122) are all located in the second axial region (252). The third second main cavity (2132) and the fourth second main cavity (2142) are both located in the third axial region (253).

2. The valve core according to claim 1, characterized in that, The axes of the first arc-shaped plate (281) and the second arc-shaped plate (282) are both coaxially arranged with the bushing (271), and the plurality of arc-shaped ribs (22) include: Multiple first ribs are arranged side by side on the outside of the first arc plate (281), and each first rib extends circumferentially along the main body (21). Multiple second ribs are arranged side by side on the outside of the second arc-shaped plate (282), and each second rib extends circumferentially along the main body (21).

3. The valve core according to claim 1, characterized in that, The valve core includes, in the circumferential direction, a first sector area (261), a second sector area (262), a third sector area (263), a fourth sector area (264), a fifth sector area (265), a sixth sector area (266), a seventh sector area (267), and an eighth sector area (268) arranged sequentially. The first main cavity (2111) is distributed in the first sector area (261) and the second sector area (262), the first second main cavity (2112) is distributed in the first sector area (261) and the second sector area (262), the third main cavity (2131) is distributed in the third sector area (263) and the fourth sector area (264), and the third second main cavity (2132) is distributed in the second sector area (262) and the third sector area (263). The second main cavity (2121) is distributed in the seventh sector (267) and the eighth sector (268), the second secondary main cavity (2122) is distributed in the seventh sector (267) and the eighth sector (268), the fourth main cavity (2141) is distributed in the fifth sector (265) and the sixth sector (266), and the fourth secondary main cavity (2142) is distributed in the sixth sector (266) and the seventh sector (267).

4. The valve core according to claim 3, characterized in that, In the axial direction of the valve core, the lengths of the first axial region (251), the second axial region (252), and the third axial region (253) are equal; In the circumferential direction of the valve core, the first sector area (261), the second sector area (262), the third sector area (263), the fourth sector area (264), the fifth sector area (265), the sixth sector area (266), the seventh sector area (267), and the eighth sector area (268) have the same arc.

5. The valve core according to claim 1, characterized in that, The valve core also includes: A rotating shaft (23) is located inside the bushing (271) and the rotating shaft (23) and the bushing (271) are fixedly connected. One end of the rotating shaft (23) is located outside the bushing (271). A limiting block (24) protrudes from a circular end plate (272) and is used to cooperate with a limiting structure in a multi-way valve to limit the rotation range of the valve core.

6. A multi-way valve, characterized in that, The multi-way valve includes a main body (10) and a valve core (20) according to any one of claims 1 to 5. The main body (10) has a valve cavity (12) and a plurality of inlets and outlets. The valve core (20) is rotatably disposed in the valve cavity (12) to switch the connection status of the plurality of inlets and outlets.

7. The multi-way valve according to claim 6, characterized in that, The main body (10) includes a valve body (14) and a sealing gasket (15). The valve body (14) has a valve cavity (12). The sealing gasket (15) is disposed in the valve cavity (12). A plurality of the inlets and outlets are disposed in the sealing gasket (15).

8. The multi-way valve according to claim 7, characterized in that, The sealing gasket (15) includes a third arc-shaped plate (151), axial ribs (152) and circumferential ribs (153). Multiple inlets and outlets are distributed on the third arc-shaped plate (151). Multiple axial ribs (152) extend axially along the valve core (20) and are arranged side by side on the side of the third arc-shaped plate (151) facing the inner wall of the valve cavity (12). Multiple circumferential ribs (153) extend circumferentially along the valve core (20) and are arranged side by side on the side of the third arc-shaped plate (151) facing the inner wall of the valve cavity (12).

9. The multi-way valve according to claim 8, characterized in that, The spacing between two adjacent circumferential ribs (153) is greater than the spacing between two adjacent axial ribs (152); each inlet and outlet is surrounded by two circumferential ribs (153) and two axial ribs (152).

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