multi-way valve

Abstract

This invention provides a multi-way valve, comprising: a valve body having a receptacle and an opening communicating with each other; an end cap disposed at the opening of the valve body; a valve core rotatably disposed within the receptacle; and an anti-rotation structure disposed between the valve body and the valve core, the anti-rotation structure being used to limit the rotation angle of the valve core within the valve body. The technical solution provided by this application can solve the problem of easy damage to the end cap of existing multi-way valves.

Description

Technical Field

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

[0002] Existing multi-way valves typically include a valve body, an end cap, a valve core, and a drive mechanism. The end cap is located at the end of the valve body, which has a cavity for accommodating the valve core. The valve core is rotatably mounted within the cavity. The drive mechanism is connected to the valve core to enable the multi-way valve to switch between multiple operating states. Multi-way valves also typically include a first anti-rotation part and a second anti-rotation part, respectively located at the end of the valve core and on the end cap. These two parts cooperate to limit the rotation angle of the valve core. When the valve core rotates, it drives the first anti-rotation part to rotate. When the first and second anti-rotation parts contact each other, the valve core stops rotating. With this technical solution, when the first and second anti-rotation parts contact each other, the first anti-rotation part exerts a significant force on the second anti-rotation part. Since the second anti-rotation part is located on the end cap, the force acting on the second anti-rotation part is transmitted to the end cap. After prolonged use, this may damage the end cap, affecting the service life of the multi-way valve. Summary of the Invention

[0003] This invention provides a multi-way valve to solve the problem of easy damage to the end cap in the prior art.

[0004] The present invention provides a multi-way valve, comprising: a valve body having a receiving cavity and an opening that are in communication with each other; an end cap disposed at the opening of the valve body; a valve core rotatably disposed within the receiving cavity; and an anti-rotation structure disposed between the valve body and the valve core, the anti-rotation structure being used to limit the rotation angle of the valve core within the valve body.

[0005] By applying the technical solution of this invention, an anti-rotation structure can be set to limit the rotation angle of the valve core within the valve body, ensuring that the valve core rotates within a preset angle range and guaranteeing the accuracy of the valve core rotation. This, in turn, ensures that the multi-way valve can smoothly switch between multiple operating states. Specifically, this solution places the anti-rotation structure between the valve body and the valve core. When the anti-rotation structure limits the rotation angle of the valve core, the force exerted by the anti-rotation structure is transmitted to both the valve body and the valve core. Compared with the traditional technical solution where the anti-rotation structure is placed on the end cap and valve core of the multi-way valve, the valve body has a greater capacity to withstand force than the end cap. The probability of the valve body being damaged is lower than that of the end cap, resulting in higher overall structural strength and thus ensuring the service life of the multi-way valve.

[0006] Furthermore, the anti-rotation structure includes: a first anti-rotation part disposed at the end of the valve core; and a second anti-rotation part disposed on the valve housing and located within the receiving cavity. The second anti-rotation part has a first side surface and a second side surface disposed opposite to each other along the rotation direction of the valve core. The first anti-rotation part can engage with the first side surface and the second side surface to limit the rotation angle of the valve core. This arrangement improves the ease of engagement between the first and second anti-rotation parts. Furthermore, the first and second side surfaces are in surface contact with the first anti-rotation part, ensuring the contact area between the first and second anti-rotation parts and guaranteeing the structural strength when the two parts are in contact.

[0007] Furthermore, the second anti-rotation part is detachably connected to the valve body. This design improves the ease of assembly of the multi-way valve and allows for the connection of second anti-rotation parts of different specifications to the valve body, thereby limiting different rotation angles of the valve core and improving the adaptability of the multi-way valve.

[0008] Furthermore, the second anti-rotation part includes: a connecting part, detachably connected to the valve body and located on the outer periphery of the valve core; and an abutting part, disposed on the connecting part, the abutting part and the connecting part being radially distributed along the valve body, and the abutting part being located at one end of the valve core, the abutting part being in a limiting fit with the first anti-rotation part. This arrangement ensures the compact structure of the multi-way valve.

[0009] Furthermore, an axial positioning structure is provided between the valve body and the connecting part, which can position the connecting part axially on the valve body; and / or, a circumferential positioning structure is also provided between the valve body and the connecting part, which is used to position the connecting part circumferentially on the valve body. The axial positioning part and the circumferential positioning structure cooperate to position the second anti-rotation part on the valve body, thereby avoiding the need for additional fasteners to install the second anti-rotation part on the valve body and ensuring the structural strength of the second anti-rotation part.

[0010] Furthermore, two positioning protrusions are provided on the inner wall of the valve housing. These two protrusions are spaced apart circumferentially around the valve housing and located on the outer periphery of the valve core, forming a snap-fit ​​gap between them. The connecting portion extends circumferentially around the valve housing and includes a first positioning portion and a second positioning portion arranged sequentially along the axial direction of the valve housing. Along the circumferential direction of the valve housing, the first positioning portion has a first end and a second end positioned opposite each other, and the second positioning portion has a third end and a fourth end positioned opposite each other. The third end is positioned closer to the first end, and the fourth end is positioned closer to the second end. The first and second ends protrude from the third and fourth ends respectively in the circumferential direction of the valve housing. The sides of the first and second ends facing the second positioning portion abut against the positioning protrusions to form an axial positioning structure. The second positioning portion is located within the snap-fit ​​gap, and both ends of the second positioning portion are respectively press-fitted with the two positioning protrusions to form a circumferential positioning structure. This configuration is simple in structure and facilitates the assembly of the second anti-rotation portion.

[0011] Furthermore, both the third and fourth ends have interconnected limiting surfaces and mating ramps. These limiting surfaces and mating ramps are arranged along the axial direction of the valve body, with the limiting surfaces positioned close to the first positioning portion. The circumferential dimensions of the two mating ramps at the third and fourth ends gradually decrease in the direction away from the first positioning portion. This arrangement improves the smoothness of assembly of the second anti-rotation portion.

[0012] Furthermore, the positioning protrusion is formed by recessing from the side wall of the valve body into the receiving cavity. This design improves the ease of machining the valve body.

[0013] Furthermore, the second anti-rotation part is equipped with a weight-reducing structure. The weight-reducing structure can reduce the amount of raw materials used in processing the second anti-rotation part, thus saving processing costs.

[0014] Furthermore, the valve housing has multiple valve ports on its side wall, which are connected to the receiving cavity. The valve core has multiple flow channels on its side wall, with each valve port corresponding to a flow channel. Attached Figure Description

[0015] 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:

[0016] Figure 1 A schematic diagram of the structure of the multi-way valve provided by the present invention is shown;

[0017] Figure 2 An exploded view of the multi-way valve provided by the present invention is shown;

[0018] Figure 3 A schematic diagram of the structure of the second anti-rotation part provided by the present invention is shown;

[0019] Figure 4 This invention provides a second anti-rotation portion, which is shown in a structural schematic diagram from another perspective.

[0020] Figure 5 A front view of the second anti-rotation part provided by the present invention is shown;

[0021] Figure 6 A schematic diagram of the valve housing provided by the present invention is shown;

[0022] Figure 7 A schematic diagram of the valve core and valve body assembly provided by the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 10. Valve housing; 101. Receiving cavity; 102. Valve port;

[0025] 11. Locating the protrusion;

[0026] 20. Valve core; 201. Flow passage;

[0027] 30. First anti-rotation part;

[0028] 40. Second anti-rotation part; 401. First side surface; 402. Second side surface; 403. Weight reduction structure;

[0029] 41. Connecting part;

[0030] 411, First positioning part; 4111, First end; 4112, Second end;

[0031] 412. Second positioning part; 4121. Third end; 4122. Fourth end; 4123. Limiting surface; 4124. Mating inclined surface;

[0032] 42. Contact part;

[0033] 43. Transition connection; 431. Fifth end; 432. Sixth end. Detailed Implementation

[0034] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1 to 7As shown, the present invention provides a multi-way valve, comprising: a valve housing 10, an end cap, a valve core 20, and an anti-rotation structure. The valve housing 10 has a receiving cavity 101 and an opening that communicate with each other. The end cap is disposed at the opening of the valve housing 10. The valve core 20 is rotatably disposed within the receiving cavity 101. The anti-rotation structure is disposed between the valve housing 10 and the valve core 20, and the anti-rotation structure is used to limit the rotation angle of the valve core 20 within the valve housing 10.

[0036] By applying the technical solution of this invention, an anti-rotation structure can be set to limit the rotation angle of the valve core 20 within the valve housing 10, ensuring that the valve core 20 rotates within a preset angle range and guaranteeing the accuracy of the valve core 20's rotation. This, in turn, ensures that the multi-way valve can smoothly switch between multiple operating states. Specifically, this solution sets the anti-rotation structure between the valve housing 10 and the valve core 20. When the anti-rotation structure limits the rotation angle of the valve core 20, the force of the anti-rotation structure is transmitted to both the valve housing 10 and the valve core 20. Compared with the conventional solution where the anti-rotation structure is set between the end cap and the valve core 20 of the multi-way valve, the valve housing 10 has a higher force-bearing capacity than the end cap. The probability of the valve housing 10 being damaged is lower than that of the end cap, resulting in higher overall structural strength and thus ensuring the service life of the multi-way valve. Furthermore, the above-mentioned arrangement avoids interference between the anti-rotation structure and the end cap during assembly of the end cap and valve housing 10, improving the ease of end cap assembly.

[0037] like Figures 1 to 3 As shown, the anti-rotation structure includes a first anti-rotation part 30 and a second anti-rotation part 40. The first anti-rotation part 30 is disposed at the end of the valve core 20. The second anti-rotation part 40 is disposed on the valve housing 10 and located within the receiving cavity 101. The second anti-rotation part 40 has a first side surface 401 and a second side surface 402 disposed opposite to each other along the rotation direction of the valve core 20. The first anti-rotation part 30 can engage with the first side surface 401 and the second side surface 402 to limit the rotation angle of the valve core 20. When the multi-way valve is in operation, the rotation of the valve core 20 drives the first anti-rotation part 30 to rotate. When the valve core 20 rotates to a preset angle, the first anti-rotation part 30 contacts the first side surface 401 or the second side surface 402 of the second anti-rotation part 40, and the valve core 20 stops rotating. Specifically, there is a certain gap between the valve core 20 and the inner wall of the valve housing 10. The first anti-rotation part 30 is set at the end of the valve core 20 to prevent the first anti-rotation part 30 from occupying the gap between the valve core 20 and the valve housing 10, thereby ensuring the compact structure of the entire multi-way valve.

[0038] Furthermore, the second anti-rotation part 40 is detachably connected to the valve housing 10. This design avoids interference between the second anti-rotation part 40 and the valve core 20 during assembly, improving the ease of assembly. Moreover, since the rotation angle of the valve core 20 is limited by the first side 401 and the second side 402 of the second anti-rotation part 40, when a change in the rotation angle of the valve core 20 is required, simply replace the second anti-rotation part 40 with one of different sizes. This allows for a wider range of rotation angles for the valve core 20, enhancing the adaptability of the multi-way valve.

[0039] Furthermore, the first anti-rotation part 30 is fixedly connected to the end of the valve core 20, and the first anti-rotation part 30 and the end of the valve core 20 are integrally formed. This configuration ensures the stability of the connection between the first anti-rotation part 30 and the valve core 20, and also ensures the ease of processing the first anti-rotation part 30 and the valve core 20.

[0040] Optionally, the first anti-rotation part 30 is detachably connected to the end of the valve core 20. This detachable connection can be achieved through snap-fit ​​or fasteners; the specific method of detachable connection is not limited in this design. This configuration improves the flexibility of the interaction between the first anti-rotation parts 30 and 20.

[0041] like Figures 1 to 5 As shown, the second anti-rotation part 40 includes a connecting part 41 and an abutting part 42. The connecting part 41 is detachably connected to the valve housing 10 and is located on the outer periphery of the valve core 20. The abutting part 42 is disposed on the connecting part 41, and the abutting part 42 and the connecting part 41 are distributed radially along the valve housing 10. The abutting part 42 is located at one end of the valve core 20 and engages with the first anti-rotation part 30 for limiting cooperation. Specifically, the second anti-rotation part 40 extends circumferentially along the valve housing 10, and the second anti-rotation part 40, the valve core 20, and the valve housing 10 are coaxially arranged. The connecting part 41 is located between the valve core 20 and the valve housing 10. Furthermore, along the axial direction of the valve housing 10, the connecting portion 41 has a first top end and a first bottom end disposed opposite to each other, and the abutting portion 42 has a second top end and a second bottom end disposed opposite to each other. The first top end and the second top end are flush, and the first bottom end protrudes beyond the second bottom end. The first bottom end of the connecting portion 41 is located between the valve core 20 and the valve housing 10. This arrangement rationally utilizes the gap between the inner circumferential surface of the valve housing 10 and the circumferential surface of the valve core 20, ensuring the compactness of the multi-way valve structure. Moreover, this arrangement allows for easy assembly of the multi-way valve by first assembling the valve core 20 into the valve housing 10 and then installing the connecting portion 41 onto the valve housing 10.

[0042] Furthermore, an axial positioning structure is provided between the valve housing 10 and the connecting part 41, which can position the connecting part 41 axially on the valve housing 10. A circumferential positioning structure is also provided between the valve housing 10 and the connecting part 41, which is used to position the connecting part 41 circumferentially on the valve housing 10. Since the second anti-rotation part 40 and the valve housing 10 are separate structures, the provision of the axial and circumferential positioning structures ensures the stability of the assembly between the second anti-rotation part 40 and the valve housing 10, thereby ensuring the stability of the multi-way valve's operation.

[0043] like Figure 1 and Figure 6 As shown, two positioning protrusions 11 are provided on the inner wall of the valve housing 10. The two positioning protrusions 11 are distributed circumferentially around the valve housing 10 and are located on the outer periphery of the valve core 20, forming a snap-fit ​​gap between the two positioning protrusions 11. The connecting part 41 extends circumferentially around the valve housing 10 and includes a first positioning part 411 and a second positioning part 412 arranged sequentially along the axial direction of the valve housing 10. The outer peripheral surfaces of the first positioning part 411 and the second positioning part 412 are both in contact with the inner peripheral surface of the valve housing 10. Along the circumferential direction of the valve housing 10, the first positioning portion 411 has a first end 4111 and a second end 4112 disposed opposite to each other, and the second positioning portion 412 has a third end 4121 and a fourth end 4122 disposed opposite to each other. The third end 4121 is disposed close to the first end 4111, and the fourth end 4122 is disposed close to the second end 4112. The first end 4111 and the second end 4112 protrude from the third end 4121 and the fourth end 4122 respectively in the circumferential direction of the valve housing 10. The sides of the first end 4111 and the second end 4112 facing the second positioning portion 412 abut against the positioning protrusion 11 to form an axial positioning structure. Furthermore, the second positioning portion 412 is located within the snap-fit ​​gap, and both ends of the second positioning portion 412 are respectively press-fitted with the two positioning protrusions 11 to form a circumferential positioning structure. When installing the second anti-rotation part 40, the second positioning part 412 is inserted into the snap-fit ​​gap until the first positioning part 411 abuts against the two positioning protrusions 11. This configuration eliminates the need for additional fasteners to secure the second anti-rotation part 40 to the valve housing 10 during installation, thereby further ensuring the structural strength of the second anti-rotation part 40 and the valve housing 10 and extending the service life of the multi-way valve. Furthermore, this configuration facilitates the assembly of the second anti-rotation part 40 and the valve housing 10.

[0044] Furthermore, both the third end 4121 and the fourth end 4122 have interconnected limiting surfaces 4123 and mating inclined surfaces 4124. The limiting surfaces 4123 and mating inclined surfaces 4124 are arranged along the axial direction of the valve housing 10, with the limiting surface 4123 positioned close to the first positioning part 411. The circumferential dimensions of the two mating inclined surfaces 4124 at the third end 4121 and the fourth end 4122 gradually decrease in the direction away from the first positioning part 411. Specifically, the limiting surface 4123 abuts against the positioning protrusion 11, and there is a certain gap between the mating inclined surface 4124 and the positioning protrusion 11. This arrangement facilitates the insertion of the second positioning part 412 into the engagement gap between the two positioning protrusions 11.

[0045] Furthermore, the abutment portion 42 is located at the center of the circumferential extension direction of the connecting portion 41, and the abutment portion 42 is disposed on the inner circumferential surface of the first positioning portion 411. This arrangement makes the second anti-rotation portion 40 a symmetrical structure, thereby ensuring the uniformity of the force on the second anti-rotation portion 40 and ensuring the service life of the second anti-rotation portion 40.

[0046] like Figure 4 As shown, the second anti-rotation portion 40 also includes a transition connection portion 43, which is disposed between the abutment portion 42 and the first positioning portion 411. The abutment portion 42, the transition connection portion 43, and the first positioning portion 411 are integrally formed. Along the circumferential direction of the valve housing 10, the transition connection portion 43 has a fifth end 431 and a sixth end 432 disposed opposite to each other. The fifth end 431 extends to the first end 4111 of the first positioning portion 411, and the sixth end 432 extends to the second end 4112 of the first positioning portion 411. Along the axial direction of the valve housing 10, the transition connection portion 43 has a third top end and a third bottom end disposed opposite to each other. The third top end of the transition connection portion 43 is flush with the second top end of the abutment portion 42, and the third bottom end of the transition connection portion 43 is flush with the second bottom end of the abutment portion 42. The height of the transition connection portion 43 along the axial direction is less than the height of the first positioning portion 411 along the axial direction. This configuration increases the thickness of the top of the second anti-rotation portion 40, further ensuring the structural strength of the second anti-rotation portion 40.

[0047] like Figure 2 As shown, the positioning protrusion 11 is formed by recessing from the side wall of the valve housing 10 into the receiving cavity 101. This design facilitates the machining and forming of the valve housing 10.

[0048] Optionally, the positioning protrusion 11 is disposed on the inner circumferential surface of the valve housing 10, and the positioning protrusion 11 and the valve housing 10 are integrally formed.

[0049] like Figure 3 and Figure 4As shown, the second anti-rotation portion 40 is provided with a weight-reducing structure 403. In this design, multiple first weight-reducing grooves are provided at intervals on the outer peripheral surface of the connecting portion 41, forming the weight-reducing structure 403. Furthermore, a second weight-reducing groove is provided on the end face of the second top end of the abutment portion 42, also forming the weight-reducing structure 403. The weight-reducing structure saves raw materials for the second anti-rotation portion 40, facilitates the processing and forming of the second anti-rotation portion 40, and increases the structural strength of the second anti-rotation portion 40.

[0050] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the valve housing 10 has multiple valve ports 102 on its side wall, which are connected to the receiving cavity 101. The valve core 20 has multiple flow channels 201 on its side wall, with each valve port 102 corresponding to a flow channel 201.

[0051] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0052] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0053] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0054] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0055] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0056] 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 multi-way valve, characterized in that, The multi-way valve includes: The valve housing (10) has an interconnected receiving cavity (101) and an opening; An end cap is provided at the opening of the valve housing (10); The valve core (20) is rotatably disposed within the receiving cavity (101); An anti-rotation structure is provided between the valve housing (10) and the valve core (20), the anti-rotation structure being used to limit the rotation angle of the valve core (20) within the valve housing (10); The anti-rotation structure includes: A first anti-rotation part (30) is provided at the end of the valve core (20); The second anti-rotation part (40) is disposed on the valve housing (10) and the second anti-rotation part (40) is located in the receiving cavity (101). The second anti-rotation part (40) has a first side surface (401) and a second side surface (402) disposed opposite to each other along the rotation direction of the valve core (20). The first anti-rotation part (30) can be limited to cooperate with the first side surface (401) and the second side surface (402) to limit the rotation angle of the valve core (20). The second anti-rotation part (40) includes: The connecting part (41) is detachably connected to the valve housing (10) and is located on the outer periphery of the valve core (20); An abutment portion (42) is provided on the connecting portion (41). The abutment portion (42) and the connecting portion (41) are distributed radially along the valve housing (10), and the abutment portion (42) is located at one end of the valve core (20). The abutment portion (42) is in a limiting fit with the first anti-rotation portion (30). Furthermore, along the axial direction of the valve housing (10), the connecting part (41) has a first top end and a first bottom end disposed opposite to each other, and the abutting part (42) has a second top end and a second bottom end disposed opposite to each other, wherein the first top end and the second top end are flush with each other, the first bottom end protrudes from the second bottom end, and the first bottom end of the connecting part (41) is located between the valve core (20) and the valve housing (10).

2. The multi-way valve according to claim 1, characterized in that, An axial positioning structure is provided between the valve housing (10) and the connecting part (41), and the axial positioning structure can position the connecting part (41) on the valve housing (10) in an axial direction. And / or, a circumferential positioning structure is also provided between the valve housing (10) and the connecting part (41), the circumferential positioning structure being used to position the connecting part (41) on the valve housing (10) in a circumferential position.

3. The multi-way valve according to claim 2, characterized in that, Two positioning protrusions (11) are provided on the inner wall of the valve housing (10). The two positioning protrusions (11) are distributed circumferentially along the valve housing (10) and located on the outer periphery of the valve core (20). A snap-fit ​​gap is formed between the two positioning protrusions (11). The connecting portion (41) extends circumferentially along the valve housing (10), and the connecting portion (41) includes a first positioning portion (411) and a second positioning portion (412) arranged sequentially along the axial direction of the valve housing (10). Along the circumferential direction of the valve housing (10), the first positioning portion (411) has a first end (4111) and a second end (4112) arranged opposite to each other, and the second positioning portion (412) has a third end (4121) and a fourth end (4122) arranged opposite to each other. 1) The fourth end (4122) is located near the first end (4111) and near the second end (4112). The first end (4111) and the second end (4112) protrude from the third end (4121) and the fourth end (4122) respectively in the circumferential direction of the valve body (10). The sides of the first end (4111) and the second end (4112) facing the second positioning part (412) abut against the positioning protrusion (11) and form the axial positioning structure. The second positioning part (412) is located within the snap-fit ​​gap, and both ends of the second positioning part (412) are respectively press-fitted with the two positioning protrusions (11) to form the circumferential positioning structure.

4. The multi-way valve according to claim 3, characterized in that, The end faces of the third end (4121) and the fourth end (4122) each have a limiting surface (4123) and a mating inclined surface (4124) that are connected to each other. The limiting surface (4123) and the mating inclined surface (4124) are arranged along the axial direction of the valve body (10), and the limiting surface (4123) is arranged close to the first positioning part (411). The circumferential dimensions of the two mating inclined surfaces (4124) of the third end (4121) and the fourth end (4122) gradually decrease in the direction away from the first positioning part (411).

5. The multi-way valve according to claim 3, characterized in that, The positioning protrusion (11) is formed by recessing the side wall of the valve housing (10) into the receiving cavity (101).

6. The multi-way valve according to claim 1, characterized in that, The second anti-rotation part (40) is provided with a weight reduction structure (403).

7. The multi-way valve according to claim 1, characterized in that, The valve housing (10) has multiple valve ports (102) on its side wall, and the multiple valve ports (102) are connected to the receiving cavity (101). The valve core (20) has multiple flow channels (201) on its side wall, and the valve ports (102) and the flow channels (201) are arranged in a one-to-one correspondence.

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