Multi-way valve

Abstract

The utility model provides a multi-way valve which comprises a valve body and a valve element arranged in the valve body, the valve body is provided with a plurality of circulation holes distributed at intervals, the valve element is provided with a plurality of circulation channels arranged at intervals, openings in the two ends of each circulation channel correspond to the circulation holes in different positions respectively, and the valve element is arranged in a rotatable mode. The multi-way valve is switched to any circulation working condition; the valve element comprises a plurality of fan-shaped areas which are equally divided in the circumferential direction. The circulation channel comprises a first circulation channel and a second circulation channel; in the circumferential direction of the valve element, openings in the two ends of the first circulation channel stretch across one fan-shaped area, and openings in the two ends of the second circulation channel stretch across the two fan-shaped areas. According to the technical scheme, the first circulation channel and the second circulation channel can be switched among different circulation working conditions through rotation of the valve element, a flow path formed by the multiple circulation channels can be adjusted through one valve element, use is convenient, and control is easy and reliable.

Description

Technical Field

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

[0002] The multi-way valve in the prior art usually adopts a three-way valve or a four-way valve or a combination of a three-way valve and a four-way valve, but the switching conditions are still relatively small, and the pipelines and control procedures are relatively complicated. Utility Model Content

[0003] The utility model provides a multi-way valve to solve the problem that the various valves in the prior art can switch to fewer working conditions.

[0004] In order to solve the above problems, the utility model provides a multi-way valve, which includes a valve body and a valve core arranged in the valve body, the valve body having a plurality of flow holes distributed at intervals, the valve core having a plurality of flow channels spaced from each other, the openings at both ends of the flow channels respectively corresponding to the flow holes at different positions, and the valve core being rotatably arranged to switch the multi-way valve to any one flow condition; the valve core includes a plurality of sector-shaped areas equally divided along the circumferential direction; the flow channel includes a first flow channel and a second flow channel; in the circumferential direction of the valve core, the openings at both ends of the first flow channel are arranged across a sector-shaped area, and the openings at both ends of the second flow channel are arranged across two sector-shaped areas.

[0005] Furthermore, the valve core includes 9 equally divided sectors along the circumferential direction. Every 40° rotation of the valve core corresponds to switching to a flow condition. The connection conditions of the multiple flow holes with the multiple flow channels are different under different flow conditions.

[0006] Furthermore, at least one flow hole forms a flow area, and multiple flow areas are distributed at intervals on the wall of the valve body, and multiple flow holes used to form the same flow area are connected to each other. When the openings at both ends of the flow channel are respectively connected to two flow holes in different flow areas, the two flow areas are connected to each other.

[0007] Further, the circulation area includes a first circulation area, a second circulation area, a third circulation area, a fourth circulation area, a fifth circulation area and a sixth circulation area, the first circulation area is formed by two adjacent circulation holes, the second circulation area is formed by three sequentially adjacent circulation holes, the third circulation area, the fourth circulation area, the fifth circulation area and the sixth circulation area are each formed by one circulation hole, and the third circulation area, the fourth circulation area, the fifth circulation area and the sixth circulation area are symmetrically distributed between the first circulation area and the second circulation area.

[0008] Furthermore, the openings at both ends of the first circulation channel and the second circulation channel are respectively arranged on four sector-shaped areas, and one end opening of the first circulation channel and one end opening of the second circulation channel adjacent thereto are arranged across a sector-shaped area; the other end opening of the first circulation channel and one end opening of the second circulation channel adjacent thereto are arranged across a sector-shaped area.

[0009] Furthermore, the multi-way valve also includes a valve core sealing gasket, which has avoidance ports corresponding to the multiple flow holes one by one, and the valve core sealing gasket is arranged between the valve core and the valve body to seal the periphery of the flow hole.

[0010] Furthermore, the openings at both ends of any one of the flow channels extend to the bottom of the valve core, and the valve core sealing gasket is a plane sealing gasket correspondingly arranged between the bottom of the valve core and the valve core.

[0011] Furthermore, both end openings of any one of the flow channels extend to the side wall of the valve core in the circumferential direction, and the valve core sealing gasket is an annular sealing gasket arranged around the valve core in the circumferential direction between the valve core and the side wall of the valve body.

[0012] Furthermore, a plurality of flow holes are arranged at the bottom of the valve body.

[0013] Furthermore, the plurality of flow holes are all arranged on the side wall of the valve body in the circumferential direction.

[0014] Furthermore, the multi-way valve has at least nine flow conditions. The multi-way valve includes a valve body and a valve core rotatably arranged in the valve body. The valve body has a plurality of flow holes distributed at intervals. The valve core has a plurality of flow channels spaced apart from each other. The openings at both ends of the flow channels correspond to the flow holes arranged at different positions respectively. The valve core is rotatably arranged to switch the multi-way valve to any flow condition. The flow channels include a first flow channel and a second flow channel. The flow holes include hole A1, hole A2, hole E, hole F, hole B3, hole B2, hole B1, hole D, and hole C arranged in sequence.

[0015] Furthermore, the nine flow conditions are respectively the first flow condition, the second flow condition, the third flow condition, the fourth flow condition, the fifth flow condition, the sixth flow condition, the seventh flow condition, the eighth flow condition and the ninth flow condition; when the valve core is in the first flow condition, hole A1 is connected to hole E through the first flow channel, and hole D is connected to hole B3 through the second flow channel; when the valve core is in the second flow condition, hole A2 is connected to hole C through the first flow channel, and hole F is connected to hole B1 through the second flow channel; when the valve core is in the third flow condition, hole A1 is connected to hole D through the first flow channel, and hole B2 is connected to hole E through the second flow channel; when the valve core is in the fourth flow condition, hole B1 is connected to hole C through the first flow channel, and hole F is connected to hole B1 through the second flow channel. B3 is connected with hole A2 through the second flow channel; when the valve core is in the fifth flow condition, hole B2 is connected with hole D through the first flow channel, and hole F is connected with hole A1 through the second flow channel; when the valve core is in the sixth flow condition, hole B3 is connected with hole B1 through the first flow channel, and hole E is connected with hole C through the second flow channel; when the valve core is in the seventh flow condition, hole B2 is connected with hole F through the first flow channel, and hole D is connected with hole A2 through the second flow channel; when the valve core is in the eighth flow condition, hole B2 is connected with hole F through the first flow channel, and hole D is connected with hole A2 through the second flow channel; when the valve core is in the ninth flow condition, hole A2 is connected with hole F through the first flow channel, and hole C is connected with hole B2 through the second flow channel.

[0016] Furthermore, the rotation angles of the valve core in the first flow condition, the second flow condition, the third flow condition, the fourth flow condition, the fifth flow condition, the sixth flow condition, the seventh flow condition, the eighth flow condition, and the ninth flow condition are 0°, 40°, 80°, 120°, 160°, 200°, 240°, 280°, and 320°, respectively.

[0017] By applying the technical solution of the utility model, a multi-way valve is provided. The multi-way valve includes a valve body and a valve core arranged in the valve body. The valve body has a plurality of flow holes spaced apart along its circumference. The valve core has a plurality of flow channels spaced apart from each other. The openings at both ends of the flow channels correspond to the flow holes at different positions respectively. The valve core is rotatably arranged to switch the multi-way valve to any flow condition. The valve core includes a plurality of fan-shaped areas equally divided along the circumference. The flow channel includes a first flow channel and a second flow channel. In the circumference of the valve core, the openings at both ends of the first flow channel are arranged across a fan-shaped area, and the openings at both ends of the second flow channel are arranged across two fan-shaped areas. By adopting this solution, the conversion of the first flow channel and the second flow channel to different flow conditions can be realized by rotating the valve core. The flow path formed by the plurality of flow channels can be adjusted by a valve core. It is convenient to use and simple and reliable to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 A schematic structural diagram of a multi-way valve provided in an embodiment of the utility model is shown;

[0020] Figure 2 Shows Figure 1 Exploded diagram of a multi-port valve;

[0021] Figure 3 Shows Figure 1 A cross-sectional view of a multi-way valve;

[0022] Figure 4 Shows Figure 1 A schematic diagram of the structure of a valve core of a multi-way valve;

[0023] Figure 5 Shows Figure 1 A schematic diagram of the structure of the valve core of the multi-way valve from another perspective;

[0024] Figure 6 Shows Figure 4 A top view of the valve core;

[0025] Figure 7 Shows Figure 5 A bottom view of the valve core;

[0026] Figure 8 Shows Figure 1 A bottom view of a multi-way valve;

[0027] Fig. 9 A schematic structural diagram of a multi-way valve provided in another embodiment of the utility model is shown;

[0028] Fig.10 Shows Fig. 9 Exploded diagram of a multi-port valve;

[0029] Fig.11 Shows Fig. 9 Schematic diagram of the structure of the valve body of a multi-way valve.

[0030] The above drawings include the following reference numerals:

[0031] 10. Valve body; 101. Flow hole; 102. Flow cavity; 11. Valve seat; 12. Valve cover; 13. Connecting pipe;

[0032] 20, valve core; 201, first circulation channel; 202, second circulation channel;

[0033] 31. Valve core sealing gasket; 32. External sealing gasket; 33. Sealing ring;

[0034] 40. Elastic parts;

[0035] 50. Execution drive assembly; 51. Drive shaft. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0037] like Figures 1 to 8 As shown, an embodiment of the utility model provides a multi-way valve, including a valve body 10 and a valve core 20 arranged in the valve body 10, the valve body 10 has a plurality of flow holes 101 distributed at intervals along its circumference, the valve core 20 has a plurality of flow channels spaced from each other, the openings at both ends of the flow channels are respectively arranged corresponding to the flow holes 101 at different positions, and the valve core 20 is rotatably arranged to switch the multi-way valve to any flow condition; the valve core 20 includes a plurality of sector areas equally divided along the circumference; the flow channel includes a first flow channel 201 and a second flow channel 202; in the circumference of the valve core 20, the openings at both ends of the first flow channel 201 are arranged across a sector area, and the openings at both ends of the second flow channel 202 are arranged across two sector areas.

[0038] In this embodiment, the first circulation channel 201 and the second circulation channel 202 are switched to different circulation conditions by rotating the valve core 20. The flow path formed by multiple circulation channels can be adjusted by one valve core 20, which is convenient to use and simple and reliable to control.

[0039] Specifically, in the present embodiment, the valve core 20 includes 9 equally divided sectors along the circumferential direction. The valve core 20 switches to a flow condition every 40° rotation. The multiple flow holes 101 are connected differently with the multiple flow channels under different flow conditions. The number of flow holes 101 is at least nine. At least one flow hole 101 forms a flow zone. The multiple flow zones are distributed at intervals on the wall of the valve body 10. The multiple flow holes 101 used to form the same flow zone are connected to each other. When the openings at both ends of the flow channel are connected to the two flow holes 101 in different flow zones, the two flow zones are connected to each other. This arrangement makes it easy for the operator to adjust the number of external flow paths of the multi-way valve according to actual conditions, so as to realize the N-way of the multi-way valve. Wherein, N is the number of flow zones. In the present embodiment, the multiple flow zones are distributed at intervals on the bottom wall of the valve body 10 along the circumference of the valve body 10.

[0040] In this embodiment, the multi-way valve can be a six-way valve, in which case the flow area includes a first flow area, a second flow area, a third flow area, a fourth flow area, a fifth flow area and a sixth flow area, the first flow area is formed by two adjacent flow holes 101, the second flow area is formed by three sequentially adjacent flow holes 101, the third flow area, the fourth flow area, the fifth flow area and the sixth flow area are all formed by one flow hole 101, and the third flow area, the fourth flow area, the fifth flow area and the sixth flow area are symmetrically distributed between the first flow area and the second flow area. Figure 8 As shown, the two flow holes 101 used to form the first flow zone are respectively hole A1 and hole A2, the three flow holes 101 used to form the second flow zone are respectively holes B1, B2, and B3, one flow hole 101 used to form the third flow zone is hole C, one flow hole 101 used to form the fourth flow zone is hole D, one flow hole 101 used to form the fifth flow zone is hole E, and one flow hole 101 used to form the sixth flow zone is hole F, wherein hole C and hole D are adjacent and spaced apart, and hole E and hole F are adjacent and spaced apart.

[0041] Among them, Figures 4 to 7 As shown, the openings at both ends of the circulation channel are respectively arranged on two sector-shaped areas, the openings at both ends of the first circulation channel 201 and the second circulation channel 202 are respectively arranged on four sector-shaped areas, one end opening of the first circulation channel 201 and one end opening of the second circulation channel 202 adjacent thereto are arranged across one sector-shaped area; the other end opening of the first circulation channel 201 and one end opening of the second circulation channel 202 adjacent thereto are arranged across one sector-shaped area. This arrangement is conducive to improving the conversion effect of the first circulation channel 201 and the second circulation channel 202 on the working conditions when the valve core 20 rotates.

[0042] In this embodiment, the multi-way valve has at least nine flow conditions, and the nine flow conditions include a first flow condition, a second flow condition, a third flow condition, a fourth flow condition, a fifth flow condition, a sixth flow condition, a seventh flow condition, an eighth flow condition and a ninth flow condition;

[0043] like Figure 7 and Figure 8 As shown, at this time, the multi-way valve is in the first flow condition, and the rotation angle of the valve core 20 is set to the initial angle of 0°. At this time, the hole A1 is connected with the hole E through the first flow channel 201, that is, the first flow area is connected with the fifth flow area through the first flow channel 201, and the hole D is connected with the hole B3 through the second flow channel 202, that is, the second flow area is connected with the fourth flow area through the second flow channel 202;

[0044] Figure 7 After the valve core is rotated 40° clockwise, the multi-way valve switches to the second flow condition. At this time, the hole A2 is connected with the hole C through the first flow channel 201, that is, the first flow area is connected with the third flow area through the first flow channel 201, and the hole F is connected with the hole B1 through the second flow channel 202, that is, the second flow area is connected with the sixth flow area through the second flow channel 202;

[0045] Figure 7 After the valve core is rotated 80° clockwise, the multi-way valve is switched to the third flow condition. At this time, the hole A1 is connected with the hole D through the first flow channel 201, that is, the first flow area is connected with the fourth flow area through the first flow channel 201, and the hole B2 is connected with the hole E through the second flow channel 202, that is, the second flow area is connected with the fifth flow area through the second flow channel 202;

[0046] Figure 7 After the valve core is rotated 120° clockwise, the multi-way valve is switched to the fourth flow condition. At this time, the hole B1 is connected with the hole C through the first flow channel 201, that is, the second flow area is connected with the third flow area through the first flow channel 201, and the hole B3 is connected with the hole A2 through the second flow channel 202, that is, the second flow area is connected with the first flow area through the second flow channel 202. At this time, the second flow area is connected with the third flow area and the first flow area.

[0047] Figure 7 After the valve core is rotated 160° clockwise, the multi-way valve is switched to the fifth flow condition. At this time, the hole B2 is connected with the hole D through the first flow channel 201, that is, the second flow area is connected with the fourth flow area through the first flow channel 201, and the hole F is connected with the hole A1 through the second flow channel 202, that is, the first flow area is connected with the sixth flow area through the second flow channel 202;

[0048] Figure 7After the valve core is rotated 200° clockwise, the multi-way valve switches to the sixth flow condition. At this time, the hole B3 is connected with the hole B1 through the first flow channel 201. Since the two holes belong to the second flow area, the second flow area is not connected with other flow areas. The hole E is connected with the hole C through the second flow channel 202, that is, the fifth flow area is connected with the third flow area through the second flow channel 202.

[0049] Figure 7 After the valve core is rotated 240° clockwise, the multi-way valve is switched to the seventh flow condition. At this time, the hole B2 is connected with the hole F through the first flow channel 201, that is, the second flow area is connected with the sixth flow area through the first flow channel 201, and the hole D is connected with the hole A2 through the second flow channel 202, that is, the fourth flow area is connected with the first flow area through the second flow channel 202;

[0050] Figure 7 After the valve core is rotated 280° clockwise, the multi-way valve is switched to the eighth flow condition. At this time, the hole B3 is connected with the hole E through the first flow channel 201, that is, the second flow area is connected with the fifth flow area through the first flow channel 201, and the hole A1 is connected with the hole B1 through the second flow channel 202, that is, the second flow area is connected with the first flow area through the second flow channel 202. At this time, the second flow area is connected with the fifth flow area and the first flow area;

[0051] Figure 7 After the valve core shown rotates 320° clockwise, the multi-way valve switches to the ninth flow condition. At this time, hole A2 is connected to hole F through the first flow channel 201, that is, the first flow area is connected to the sixth flow area through the first flow channel 201, and hole C is connected to hole B2 through the second flow channel 202, that is, the third flow area is connected to the second flow area through the second flow channel 202.

[0052] It can be understood that the multi-way valve in this embodiment is not limited to six-way valves, and the flow area can be designed according to actual conditions to adjust the applicable scope of the multi-way valve.

[0053] like Figure 2 and Figure 3 As shown, the multi-way valve further includes a valve core sealing gasket 31, which has avoidance openings corresponding to the plurality of flow holes 101 one by one, and the valve core sealing gasket 31 is arranged between the valve core 20 and the valve body 10 to seal the periphery of the flow holes 101. This arrangement avoids internal leakage of the multi-way valve when in use, and ensures the sealing performance of the multi-way valve.

[0054] In this embodiment, a plurality of flow holes 101 are arranged at the bottom of the valve body 10, and the openings at both ends of any flow channel extend to the bottom of the valve core 20, and the valve core sealing gasket 31 is a plane sealing gasket correspondingly arranged between the bottom of the valve core 20 and the valve core 20. This arrangement facilitates the correspondence between the opening of the flow channel of the valve core 20 and the flow hole 101.

[0055] Preferably, the valve body 10 in this embodiment includes a valve seat 11 and a valve cover 12, and multiple flow holes 101 are all arranged at the bottom of the valve seat 11. The multi-way valve also includes an elastic member 40 for pressing the valve core 20 on the bottom of the valve seat 11 and an actuator drive assembly 50 for driving the valve core 20 to rotate. The multi-way valve also includes a sealing ring 33 and an outer sealing gasket 32. The outer sealing gasket 32 ​​is a flat sealing gasket and is arranged on the side of the bottom of the valve seat 11 away from the valve core 20 and is arranged around the multiple flow holes 101. The sealing ring 33 is used to seal the gap between the drive shaft 51 of the actuator drive assembly 50 and the valve cover 12.

[0056] like Fig. 9 and Fig.11 As shown, another embodiment of the utility model provides a multi-way valve, which is different from the above embodiment in that, in this embodiment, the openings at both ends of any flow channel extend to the circumferential side wall of the valve core 20, and the valve core sealing gasket 31 is an annular sealing gasket arranged around the valve core 20 and between the side wall of the valve body 10, and multiple flow holes 101 are arranged on the circumferential side wall of the valve body 10. The valve body 10 in this embodiment is also connected to multiple connecting pipes 13 that are connected to the multiple flow areas in a one-to-one correspondence. The valve body 10 in this embodiment also has multiple flow cavities 102, and the multiple flow areas and the multiple flow cavities 102 are connected in a one-to-one correspondence, so as to connect the corresponding connecting pipes 13 and the flow holes 101 of the flow areas through the flow cavities 102. It should be noted that the valve core sealing gasket 31 is selected according to the opening direction of the circulation channel of the valve core 20, and the setting positions of the multiple circulation holes 101 can be adaptively adjusted according to actual conditions. For example, in other embodiments not shown in the figure, the openings at both ends of any circulation channel extend to the circumferential side wall of the valve core 20, and the multiple circulation holes 101 are all arranged at the bottom of the valve body 10.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0060] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0062] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

Claims

1. A multi-way valve, characterized in that: The multi-way valve comprises a valve body (10) and a valve core (20) arranged in the valve body (10), the valve body (10) having a plurality of flow holes (101) distributed at intervals, the valve core (20) having a plurality of flow channels spaced apart from each other, the openings at both ends of the flow channels corresponding to the flow holes (101) at different positions respectively, and the valve core (20) is rotatably arranged to switch the multi-way valve to any one of the flow conditions; the valve core (20) comprises a plurality of sector-shaped areas equally divided along the circumferential direction; the flow channels comprise a first flow channel (201) and a second flow channel (202); in the circumferential direction of the valve core (20), the openings at both ends of the first flow channel (201) are arranged across one of the sector-shaped areas, and the openings at both ends of the second flow channel (202) are arranged across two of the sector-shaped areas.

2. The multi-way valve according to claim 1, characterized in that: The valve core (20) comprises nine sector-shaped areas equally divided along the circumferential direction; each rotation of the valve core (20) by 40° corresponds to switching to one of the flow conditions, and the plurality of flow holes (101) have different communication conditions with the plurality of flow channels under different flow conditions.

3. The multi-way valve according to claim 1, characterized in that: At least one of the flow holes (101) forms a flow area, and a plurality of the flow areas are spaced apart and distributed on the wall surface of the valve body (10), so that the plurality of flow holes (101) used to form the same flow area are interconnected, and when the openings at both ends of the flow channel are respectively connected to two flow holes (101) of different flow areas, the two flow areas are interconnected.

4. The multi-way valve according to claim 3, characterized in that: The circulation area includes a first circulation area, a second circulation area, a third circulation area, a fourth circulation area, a fifth circulation area and a sixth circulation area, the first circulation area is formed by two adjacent circulation holes (101), the second circulation area is formed by three sequentially adjacent circulation holes (101), the third circulation area, the fourth circulation area, the fifth circulation area and the sixth circulation area are all formed by one circulation hole (101), and the third circulation area, the fourth circulation area, the fifth circulation area and the sixth circulation area are symmetrically distributed between the first circulation area and the second circulation area.

5. The multi-way valve according to claim 1, characterized in that: The openings at both ends of the first circulation channel (201) and the second circulation channel (202) are respectively arranged on the four sector-shaped areas, and one end opening of the first circulation channel (201) and one end opening of the second circulation channel (202) adjacent thereto are arranged across one sector-shaped area; the other end opening of the first circulation channel (201) and one end opening of the second circulation channel (202) adjacent thereto are arranged across one sector-shaped area.

6. The multi-way valve according to claim 1, characterized in that: The multi-way valve further comprises a valve core sealing gasket (31), wherein the valve core sealing gasket (31) has avoidance openings corresponding one-to-one to the plurality of flow holes (101), and the valve core sealing gasket (31) is arranged between the valve core (20) and the valve body (10) to seal the periphery of the flow holes (101).

7. The multi-way valve according to claim 6, characterized in that: The openings at both ends of any one of the circulation channels extend to the bottom of the valve core (20), and the valve core sealing gasket (31) is a plane sealing gasket correspondingly arranged between the bottom of the valve core (20) and the valve core (20).

8. The multi-way valve according to claim 6, characterized in that: The openings at both ends of any one of the circulation channels extend to the circumferential side wall of the valve core (20), and the valve core sealing gasket (31) is an annular sealing gasket arranged circumferentially around the valve core (20) and between the valve core (20) and the side wall of the valve body (10).

9. The multi-way valve according to claim 1, characterized in that: The plurality of flow holes (101) are all arranged at the bottom of the valve body (10).

10. The multi-way valve according to claim 1, characterized in that: The plurality of flow holes (101) are all arranged on the side wall of the valve body (10) in the circumferential direction.

11. A multi-way valve, characterized in that: The multi-way valve has at least nine flow conditions. The multi-way valve comprises a valve body (10) and a valve core (20) rotatably arranged in the valve body (10). The valve body (10) has a plurality of flow holes (101) distributed at intervals. The valve core (20) has a plurality of flow channels spaced apart from each other. The openings at both ends of the flow channels correspond to the flow holes (101) at different positions. The valve core (20) is rotatably arranged to switch the multi-way valve to any flow condition. The flow channels comprise a first flow channel (201) and a second flow channel (202). The flow holes (101) comprise hole A1, hole A2, hole E, hole F, hole B3, hole B2, hole B1, hole D, and hole C arranged in sequence.

12. The multi-way valve according to claim 11, characterized in that: The nine circulation conditions are respectively a first circulation condition, a second circulation condition, a third circulation condition, a fourth circulation condition, a fifth circulation condition, a sixth circulation condition, a seventh circulation condition, an eighth circulation condition and a ninth circulation condition: When the valve core (20) is in the first circulation working state, the hole A1 is communicated with the hole E through the first circulation channel (201), and the hole D is communicated with the hole B3 through the second circulation channel (202); When the valve core (20) is in the second circulation working state, the hole A2 is connected to the hole C through the first circulation channel (201), and the hole F is connected to the hole B1 through the second circulation channel (202); When the valve core (20) is in the third flow condition, the hole A1 is connected to the hole D through the first flow channel (201), and the hole B2 is connected to the hole E through the second flow channel (202); When the valve core (20) is in the fourth flow condition, the hole B1 is connected to the hole C through the first flow channel (201), and the hole B3 is connected to the hole A2 through the second flow channel (202); When the valve core (20) is in the fifth flow condition, the hole B2 is connected to the hole D through the first flow channel (201), and the hole F is connected to the hole A1 through the second flow channel (202); When the valve core (20) is in the sixth flow condition, the hole B3 is connected to the hole B1 through the first flow channel (201), and the hole E is connected to the hole C through the second flow channel (202); When the valve core (20) is in the seventh flow condition, the hole B2 is connected to the hole F through the first flow channel (201), and the hole D is connected to the hole A2 through the second flow channel (202); When the valve core (20) is in the eighth flow condition, the hole B2 is connected to the hole F through the first flow channel (201), and the hole D is connected to the hole A2 through the second flow channel (202); When the valve core (20) is in the ninth circulation operating state, the hole A2 is communicated with the hole F through the first circulation channel (201), and the hole C is communicated with the hole B2 through the second circulation channel (202).

13. The multi-way valve according to claim 12, characterized in that: The rotation angles of the valve core (20) in the first flow condition, the second flow condition, the third flow condition, the fourth flow condition, the fifth flow condition, the sixth flow condition, the seventh flow condition, the eighth flow condition, and the ninth flow condition are 0°, 40°, 80°, 120°, 160°, 200°, 240°, 280°, and 320°, respectively.

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