CN113154088A

CN113154088A - Multi-way valve

Info

Publication number: CN113154088A
Application number: CN202110458629.0A
Authority: CN
Inventors: 马俊; 王宏伟; 陈开星; 严爱秀; 盛祥曦
Original assignee: Zhejiang Yinlun Machinery Co Ltd
Current assignee: Zhejiang Yinlun Machinery Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-07-23

Abstract

A multi-way valve relates to the technical field of valves and comprises a valve body device, a valve core device and a sealing element; the valve core device comprises a first end and a second end which correspond to each other along the axial direction of the valve core device, and the valve body device comprises a first end and a second end which correspond to each other; the first end of the valve core device is matched with the first end of the valve body device through a sealing element; the first end of the valve core device is provided with a plurality of valve core runners which are not communicated with each other; the first end of the valve body device is provided with a plurality of external flow passage ports which can be communicated with the valve core flow passage; a sealing runner through hole corresponding to the external runner port is arranged on the sealing element; the multi-way valve is provided with a plurality of rotary working positions; when the valve core device rotates to each rotating working position, at least two external flow passage ports can be communicated with one valve core flow passage. The invention aims to provide a multi-way valve to solve the technical problems of complex pipeline and high cost caused by a large number of valves in the prior art to a certain extent.

Description

Multi-way valve

Technical Field

The invention relates to the technical field of valves, in particular to a multi-way valve.

Background

With the integration of heat exchange systems such as motor cooling, battery heating and cooling, passenger cabin heating and the like of a new energy automobile, the requirement on a cooling liquid control valve of the heat exchange system is more and more; the number of control valves on a new energy automobile may need 3 to 5, and the pipelines are complex and high in cost.

Disclosure of Invention

The invention aims to provide a multi-way valve to solve the technical problems of complex pipeline and high cost caused by a large number of valves in the prior art to a certain extent.

In order to achieve the purpose, the invention provides the following technical scheme:

a multi-way valve comprises a valve body device, a valve core device and a sealing element; the valve core device is rotatably arranged in the inner cavity of the valve body device, and the sealing element is relatively and fixedly arranged in the inner cavity of the valve body device;

the valve core device comprises a first end and a second end which correspond to each other along the axial direction of the valve core device, and the valve body device comprises a first end and a second end which correspond to each other; the first end of the valve core device is matched with the first end of the valve body device through the sealing piece, and the second end of the valve core device is matched with the second end of the valve body device;

the first end of the valve core device is provided with a plurality of valve core runners which are not communicated with each other; a plurality of external flow passage ports which can be communicated with the valve core flow passage are arranged at the first end of the valve body device; a sealing runner through hole corresponding to the external runner port is formed in the sealing element;

the multi-way valve is provided with a plurality of rotary working positions; when the valve core device rotates to each rotating working position, at least two external flow passage ports can be communicated with one valve core flow passage.

Optionally, the cartridge device comprises a cartridge body; a plurality of valve core flow passages are arranged at the first end of the valve core body along the axial direction of the valve core device; the corresponding second end of the valve core body is matched with the second end of the valve body device.

Optionally, the valve core device further comprises a valve core cover; the valve core cover body is fixedly connected with the first end of the valve core body in a sealing way;

a plurality of cover body flow passage through holes are formed in the valve core cover body; each valve core flow passage is at least communicated with two cover body flow passage through holes;

the sealing element is arranged between the first end of the valve body device and the valve core cover body;

when the valve core device rotates to each rotating working position, at least two external flow passage ports can be communicated with at least two mutually communicated cover body flow passage through holes.

Optionally, a valve core rotation limiting structure for limiting a rotation angle of the valve core device is arranged between the valve body device and the valve core body;

the valve core rotation limiting structure comprises a valve body rotation limiting stop block arranged on the valve body device and a valve core rotation limiting stop block arranged on the valve core body; one end of the valve core rotation limiting stop block can be abutted against one end of the valve body rotation limiting stop block along the circumferential direction of the valve core device, and the other end of the valve core rotation limiting stop block can be abutted against the other end of the valve body rotation limiting stop block.

Optionally, a rotation stopping structure for preventing the sealing member from rotating is arranged between the valve body device and the sealing member.

Optionally, the rotation stopping structure comprises a valve body rib arranged on the inner surface of the valve body device and a sealing protrusion arranged on one surface of the sealing element, and the other surface of the sealing element is a plane;

the adjacent valve body convex ribs form valve body rotation stopping grooves for accommodating the sealing bulges;

one or more sealing convex ribs are arranged on the inner surface of the sealing bulge corresponding to the sealing runner through hole; the plurality of sealing convex ribs are sequentially arranged along the axial direction of the valve core device; the sealing convex rib extends along the circumferential direction of the sealing runner through hole and forms a ring; the inner surface of the sealing bulge corresponding to the sealing runner through hole is one surface of the sealing bulge close to the sealing runner through hole;

the inner surface of the sealing bulge corresponding to the sealing runner through hole is an inclined surface;

a plurality of reinforcing ribs are arranged on the outer surface of the sealing bulge corresponding to the sealing runner through hole; and the reinforcing ribs are trapezoidal, triangular or rectangular along the radial direction of the valve core device.

Optionally, the multi-way valve further comprises a rotating shaft; the rotating shaft is fixedly connected with the valve core device;

one end of the rotating shaft penetrates through the sealing element and abuts against the first end of the valve body device, and the other end of the rotating shaft extends out of the second end of the valve body device; and a sealing ring is arranged between the rotating shaft and the second end of the valve body device.

Optionally, the multi-way valve further comprises an actuator;

the actuator is connected with the valve core device through the rotating shaft in a driving mode so as to drive the valve core device to rotate.

Optionally, the valve body means comprises a valve seat and an end cap; the valve seat and the end cover are fixedly connected and form an inner cavity for accommodating the valve core device; a first end of the valve body device is arranged on the valve seat, and a second end of the valve body device is arranged on the end cover;

the external flow passage port is arranged on the valve seat;

the valve seat is connected with the end cover through a screw or a hoop, or the valve seat is welded with the end cover.

Optionally, the multi-way valve is a five-way valve.

The invention has the following beneficial effects:

the multi-way valve provided by the invention comprises a valve body device, a valve core device and a sealing piece, wherein when the valve core device rotates to each rotating working position, at least two external flow passage ports can be communicated with one valve core flow passage to realize a multi-way control function, so that the existing multiple control valves can be integrated, the number of the control valves is reduced to a certain extent, the pipelines are simplified, and the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1-1 is a schematic perspective view of a multi-way valve according to an embodiment of the present invention;

FIGS. 1-2 are schematic perspective views of another multi-way valve provided in accordance with embodiments of the present invention;

FIGS. 1-3 are front views of multi-way valves provided in accordance with embodiments of the present invention;

FIGS. 1-4 are bottom views of the multi-way valve of FIGS. 1-3;

FIGS. 1-5 are cross-sectional views A-A of the multi-way valve of FIGS. 1-3;

FIGS. 1-6 are exploded views of a multi-way valve provided in accordance with an embodiment of the present invention;

FIG. 2-1 is a schematic perspective view of a valve core device and a rotating shaft according to an embodiment of the present invention;

2-2 is another perspective view of the valve core device and the rotating shaft according to the embodiment of the invention;

FIGS. 2-3 are front views of a valve cartridge assembly and a rotatable shaft provided in accordance with an embodiment of the present invention;

2-4 are B-B cross-sectional views of the valve cartridge assembly and rotating shaft shown in FIGS. 2-3;

FIGS. 2-5 and 2-6 are exploded views of a valve cartridge assembly and a rotatable shaft provided in accordance with embodiments of the present invention;

2-7 to 2-10 are schematic structural views of a valve core body and a rotating shaft provided by the embodiment of the invention;

fig. 2-11 to fig. 2-14 are schematic structural views of a valve core cover body according to an embodiment of the present invention;

3-1 to 3-5 are schematic structural views of a valve body device provided by an embodiment of the invention;

3-6 through 3-9 are schematic structural views of a valve seat provided by an embodiment of the invention;

3-10 through 3-13 are schematic structural views of end caps provided by embodiments of the present invention;

FIGS. 4-1 to 4-6 are schematic structural views of a sealing member according to an embodiment of the present invention;

fig. 5-1 to 5-6 are schematic views illustrating operation modes of the multi-way valve according to the embodiment of the invention.

Icon: 100-a valve body arrangement; 110-external flow channel openings; 111-a first external sub-stream port; 112-a second external sub-runner port; 113-a third external sub-stream port; 114-a fourth external sub-runner port; 115-a fifth external sub-stream junction; 120-valve seat; 121-valve body ribs; 122-valve body rotation stop groove; 130-an end cap; 131-a valve body rotation limiting stop block; 200-a cartridge device; 210-a spool flow passage; 211-a first valve cartridge flow channel; 212-a second valve core flow channel; 213-third valve cartridge flow channel; 220-a cartridge body; 221-valve core rotation limiting stop block; 230-a valve core cover body; 231-cover body flow passage through holes; 300-a seal; 310-sealing the runner through hole; 320-sealing protrusion; 330-sealing convex ribs; 340-reinforcing ribs; 400-rotation axis; 500-sealing ring; 600-actuator.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Examples

Referring to fig. 1-1 to 5-6, the present embodiment provides a multi-way valve. Fig. 1-1 to 1-6 are schematic structural views of a multi-way valve provided in this embodiment, where fig. 1-1 and 1-2 are schematic structural views of a three-view perspective structure of the multi-way valve, fig. 1-3 are front views of the multi-way valve provided in this embodiment, fig. 1-4 are bottom views of the multi-way valve shown in fig. 1-3, fig. 1-5 are sectional views of the multi-way valve shown in fig. 1-3 taken from a-a direction, and fig. 1-6 are exploded views of the multi-way valve provided in this embodiment.

2-1 to 2-6 are schematic structural views of the valve core device and the rotating shaft provided by the embodiment; fig. 2-1 and 2-2 are schematic perspective views of a valve core device and a rotating shaft from two viewing angles, fig. 2-3 are front views of the valve core device and the rotating shaft provided in the present embodiment, fig. 2-4 are sectional views of the valve core device and the rotating shaft shown in fig. 2-3 from direction B-B, and fig. 2-5 and 2-6 are exploded views of the valve core device and the rotating shaft from two viewing angles; fig. 2-7 to 2-10 are schematic structural views of a valve core body and a rotating shaft provided in the present embodiment, where fig. 2-7 are perspective views of the valve core body and the rotating shaft provided in the present embodiment, fig. 2-8 are front views of the valve core body and the rotating shaft, fig. 2-9 are top views of the valve core body and the rotating shaft shown in fig. 2-8, and fig. 2-10 are bottom views of the valve core body and the rotating shaft shown in fig. 2-8; fig. 2-11 to fig. 2-14 are schematic structural diagrams of the valve core cover provided in this embodiment, where fig. 2-11 are perspective views of the valve core cover provided in this embodiment, fig. 2-12 are front views of the valve core cover, fig. 2-13 are top views of the valve core cover shown in fig. 2-12, and fig. 2-14 are bottom views of the valve core cover shown in fig. 2-12.

Fig. 3-1 to 3-5 are schematic structural views of a valve body device provided in this embodiment, wherein fig. 3-1 and 3-2 are schematic structural views of a three-dimensional structure from two viewing angles of the valve body device, fig. 3-3 is a front view of the valve body device provided in this embodiment, fig. 3-4 is a top view of the valve body device shown in fig. 3-3, and fig. 3-5 is a bottom view of the valve body device shown in fig. 3-3; fig. 3-6 to 3-9 are schematic structural views of the valve seat provided in the present embodiment, wherein fig. 3-6 are schematic perspective structural views of the valve seat, fig. 3-7 are front views of the valve seat provided in the present embodiment, fig. 3-8 are sectional views of the valve seat shown in fig. 3-7 taken along the direction C-C, and fig. 3-9 are rear views of the valve seat shown in fig. 3-7; fig. 3-10 to fig. 3-13 are schematic structural diagrams of the end cap provided in this embodiment, where fig. 3-10 are schematic perspective structural diagrams of the end cap, fig. 3-11 are front views of the end cap provided in this embodiment, fig. 3-12 are top views of the end cap shown in fig. 3-11, and fig. 3-13 are bottom views of the end cap shown in fig. 3-11.

Fig. 4-1 to 4-6 are schematic structural views of the sealing member provided in the present embodiment, wherein fig. 4-1 and 4-2 are schematic perspective structural views of two viewing angles of the sealing member, fig. 4-3 is an enlarged view of a region D of the sealing member shown in fig. 4-2, fig. 4-4 is a front view of the sealing member provided in the present embodiment, fig. 4-5 is a rear view of the sealing member shown in fig. 4-4, and fig. 4-6 is a sectional view of the sealing member shown in fig. 4-5 taken along direction E-E.

Fig. 5-1 to 5-6 are schematic views of six working modes of the multi-way valve provided by the embodiment.

It should be noted that, the numbers 1-5 shown in the diagrams of fig. 1-1 to 5-6 are identification layers respectively identifying different external flow ports, so as to facilitate the different external flow ports to connect the pipelines.

Referring to fig. 1-1 to 2-14, the multi-way valve provided in this embodiment may be used in a cooling and heat exchanging system of a new energy vehicle; the multi-way valve comprises a valve body device 100 and a valve core device 200; the valve core device 200 is rotatably disposed in the inner cavity of the valve body device 100, and the valve core device 200 can rotate around its own axis relative to the valve body device 100.

In the axial direction of the valve core device 200, the valve core device 200 includes a first end and a second end corresponding to each other, and the valve body device 100 includes a first end and a second end corresponding to each other; a first end of the valve cartridge assembly 200 is engaged with a first end of the valve body assembly 100 and a second end of the valve cartridge assembly 200 is engaged with a second end of the valve body assembly 100. Alternatively, the valve cartridge device 200 is disposed coaxially with the valve body device 100.

A first end of the valve core device 200 is provided with a plurality of valve core flow passages 210 which are not communicated with each other; the first end of the valve body device 100 is provided with a plurality of external flow port openings 110 that can communicate with the spool flow passage 210. That is, when the valve element device 200 is rotated, the external flow passage port 110 can be connected to or disconnected from the valve element flow passage 210. The external flow passage port 110 is used to communicate with external pipelines, such as pipelines connecting a water pump, a motor cooling pipeline, a battery heating pipeline and a cooling pipeline, and a passenger compartment heating pipeline.

The multi-way valve further includes a seal 300, the seal 300 being relatively fixedly disposed within the interior cavity of the valve body assembly 100. The first end of the valve cartridge assembly 200 is coupled to the first end of the valve body assembly 100 by a seal 300. Optionally, the sealing member 300 is provided with a sealing flow passage through hole 310 corresponding to the external flow passage opening 110; that is, the number of the sealing flow passage through holes 310 is the same as that of the external flow passage openings 110, and the sealing flow passage through holes correspond to one another.

The multi-way valve is provided with a plurality of rotary working positions; when the valve core device 200 rotates to each rotating working position, at least two external flow passage ports 110 can be simultaneously communicated with one valve core flow passage 210; that is, when the valve core device 200 rotates to each rotational operating position, at least two external flow port openings 110 are communicated, and the other external flow port openings 110 are not communicated because of being blocked by the sealing member 300, so that the multi-way valve realizes the function of communicating two pipelines or communicating a plurality of pipelines at the rotational operating position.

In this embodiment, the multi-way valve includes a valve body device 100, a valve core device 200, and a sealing member 300, when the valve core device 200 rotates to each rotational working position, at least two external channel ports 110 can communicate with one of the valve core channels 210 to realize a multi-way control function, so that a plurality of existing control valves can be integrated, the number of control valves is reduced to a certain extent, a pipeline is simplified, and cost is reduced.

In this embodiment, the multi-way valve is provided with a plurality of valve core flow channels 210 that are not communicated with each other through the first end of the valve core device 200, and the first end of the valve body device 100 is provided with a plurality of external flow channel ports 110 that can be communicated with the valve core flow channels 210, so as to realize water inlet and water outlet at the same end of the multi-way valve, thereby further simplifying the structure for connecting the multi-way valve, making the volume of the multi-way valve smaller, and making the control more convenient.

Referring to fig. 2-1 to 2-10, in an alternative of the present embodiment, a cartridge device 200 includes a cartridge body 220; a first end of the valve body 220 is provided with a plurality of valve body flow passages 210 along an axial direction of the valve body device 200; a corresponding second end of the cartridge body 220 mates with a second end of the valve body assembly 100. Wherein, along the axial direction of the valve core device 200, the valve core body 220 comprises a first end and a second end corresponding to each other. Alternatively, the first end of the spool device 200 is a first end of the spool body 220 and the second end of the spool device 200 is a second end of the spool body 220. The plurality of valve core flow channels 210 are arranged on the valve core body 220, so that the structure of the multi-way valve is simplified, and the multi-way valve can conveniently realize the communication of different external flow channel openings 110.

Referring to fig. 2-1 to 2-14, in an alternative of the present embodiment, the valve core device 200 further includes a valve core cover 230; the valve core cover 230 is fixedly connected with the first end of the valve core body 220 in a sealing manner; optionally, the valve core cover 230 and the valve core body 220 are fixedly connected by gluing, screws, laser welding, or the like. Optionally, the valve core body 220 and the valve core cover 230 are coaxially disposed.

A plurality of cover body flow passage through holes 231 are formed in the valve core cover body 230; each valve core flow channel 210 is at least communicated with two cover body flow channel through holes 231, wherein one cover body flow channel through hole 231 is used as a liquid outlet hole, and the other cover body flow channel through hole 231 is used as a liquid inlet hole.

The seal 300 is disposed between the first end of the valve body apparatus 100 and the spool cover 230. That is, the sealing member 300 is fixedly disposed at the first end of the valve body assembly 100 and does not rotate with the rotation of the valve core assembly 200.

When the valve core device 200 rotates to each rotation working position, at least two external flow passage openings 110 can be communicated with at least two mutually communicated cover body flow passage through holes 231. That is, at least two external flow channel openings 110 can communicate with the valve core flow channel 210 through the cover body flow channel through hole 231, and it can be understood that at least one external flow channel opening 110 is an inlet and at least one external flow channel opening 110 is an outlet in at least two external flow channel openings 110. The valve core cover 230 and the cover flow passage through hole 231 reduce the contact area between the valve core flow passage 210 and the valve body device 100, improve the sealing performance between the valve body device 100 and the valve core device 200 to a certain extent, and facilitate the steering and control of the multi-way valve.

Referring to fig. 4-1 to 4-6, in an alternative of the present embodiment, a rotation stop structure for preventing rotation of the sealing member 300 is provided between the valve body assembly 100 and the sealing member 300. The sealing member 300 is fixed with respect to the valve body assembly 100 by the rotation stopping structure so as not to rotate with the rotation of the valve core assembly 200. The sealing member 300 improves the sealing performance between the valve body apparatus 100 and the valve body cover 230, and thus between the valve body apparatus 100 and the valve body apparatus 200.

Referring to fig. 3-6 to 3-9 and 4-1 to 4-6, in an alternative of the present embodiment, the rotation stopping structure includes a valve body rib 121 disposed on an inner surface of the valve body assembly 100 and a sealing protrusion 320 disposed on one surface of the sealing member 300, and the other surface of the sealing member 300 is a flat surface; the sealing member 300 includes a surface that is engaged with the valve body assembly 100 and another surface that is engaged with the valve core cover 230, that is, the surface of the sealing member 300 having the sealing protrusion 320 is engaged with the valve body assembly 100, so that the sealing member 300 is firmly fixed on the valve body assembly 100, and the surface of the sealing member 300 having a plane is engaged with the valve core cover 230, so as to improve the sealing performance between the sealing member 300 and the valve core cover 230 to a certain extent, and further improve the sealing performance between the valve body assembly 100 and the valve core cover 230. In addition, the sealing protrusion 320 can well support the plane of the sealing member 300, which is engaged with the valve core cover 230, to reduce the phenomena of deformation and recession of the plane, and further reduce the problems of resistance increase and sealing performance of the valve core device 200 in the rotation process due to the deformation and recession of the plane.

Alternatively, adjacent valve body ribs 121 form valve body rotation stop grooves 122 that receive sealing protrusions 320; the valve body rotation stopping groove 122 is used to further improve the fixing strength of the sealing member 300 on the valve body device 100, and prevent the sealing member 300 from rotating along with the rotation of the valve core device 200.

Optionally, the inner surface of the sealing protrusion 320 corresponding to the sealing runner through hole 310 is provided with one or more sealing ribs 330; the plurality of sealing ribs 330 are sequentially arranged along the axial direction of the valve core device 200; the sealing rib 330 extends along the circumferential direction of the sealing runner through hole 310 and forms a ring shape; the inner surface of the sealing protrusion 320 corresponding to the sealing runner through hole 310 is the surface of the sealing protrusion 320 close to the sealing runner through hole 310; the outer surface of the sealing protrusion 320 corresponding to the sealing runner through hole 310 is a surface of the sealing protrusion 320 far from the sealing runner through hole 310. The sealing rib 330 can improve the sealing performance between the sealing member 300 and the valve body assembly 100 at the sealing flow passage through hole 310, and can also improve the strength of the sealing member 300 at the sealing flow passage through hole 310 to some extent.

Optionally, the inner surface of the sealing protrusion 320 corresponding to the sealing flow passage through hole 310 is an inclined surface, that is, the matching surface between the inner surface of the sealing protrusion 320 corresponding to the sealing flow passage through hole 310 and the valve body rib 121 is an inclined surface. By providing the plurality of sealing ribs 330 on the inclined surface, the amount of compression of the plurality of sealing ribs 330 is different when the seal 300 is fitted to the valve body device 100, and the seal 300 tends to be displaced toward the valve body device 200 while ensuring the compressive seal between the seal 300 and the valve body device 100, thereby providing a better seal between the end surface of the valve body device 200 and the end surface of the seal 300. Alternatively, the chamfer is disposed at an acute angle to the plane of the seal 300, as shown in FIGS. 4-6.

Alternatively, the outer circumferential surface of the sealing member 300 is spaced apart from the inner circumferential surface of the valve body apparatus 100.

In the multi-way valve of the embodiment, the sealing element 300 of the multi-way valve adopts a sealing principle similar to a lip-shaped sealing ring, and deforms under the action of hydraulic pressure, so that the sealing element 300 is tightly attached to the first end of the valve core device 200 to realize the sealing of the external flow passage port 110 in a non-communicating state; the higher the hydraulic pressure, the tighter the flat end of the seal 300 is against the first end of the cartridge assembly 200, and the ability to automatically compensate for the wear of the flat end of the seal 300 is provided. Specifically, when the multi-way valve is operated, the valve core device 200 is rotated to one of the rotation operation positions, at least two external flow port ports 110 (including the external flow port 110 as an inlet and the external flow port 110 as an outlet) are communicated with one valve core flow channel 210, and the flowing medium flows into the valve body device 100 from the external flow port 110 as an inlet, flows through the corresponding valve core flow channel 210, and flows out of the valve body device 100 from the external flow port 110 as an outlet; when the flowing medium flows into the valve core flow passage 210, the flowing medium also fills the gap between the planar end of the sealing member 300 and the first end of the valve core device 200, and then the gap between the outer circumferential surface of the sealing member 300 and the inner circumferential surface of the valve body device 100 fills the whole valve body device 100, and the hydraulic pressure of the flowing medium drives the sealing member 300 to cling to the valve core device 200, so that other external flow passage ports 110 are in a non-communicating state because of being blocked by the sealing member 300, and the sealing performance of other external flow passage ports 110 is improved to a certain extent.

Optionally, a plurality of reinforcing ribs 340 are disposed on the outer surface of the sealing protrusion 320 corresponding to the sealing runner through hole 310; alternatively, the rib 340 has a trapezoidal, triangular or rectangular shape in the radial direction of the valve core device 200. The reinforcing rib 340 supports the sealing protrusion 320 at the sealing runner through hole 310, so as to improve the strength of the sealing element 300 at the sealing runner through hole 310 to a certain extent, prevent the sealing element 300 from being expanded during installation to cause sealing failure, and further improve the sealing performance between the sealing element 300 at the sealing runner through hole 310 and the valve body device 100.

2-1-2-6, in an alternative version of this embodiment, the multi-way valve further comprises a rotating shaft 400; the rotation shaft 400 is fixedly connected to the valve core device 200. The rotation of the plug device 200 is facilitated by the rotation shaft 400.

Alternatively, one end of the rotating shaft 400 passes through the sealing member 300 and abuts a first end of the valve body device 100, and the other end of the rotating shaft 400 protrudes out of a second end of the valve body device 100; the sealing member 300 is connected through the rotating shaft 400, and the first end and the second end of the valve body device 100 are connected, so that the matching precision among the valve body device 100, the valve core device 200 and the sealing member 300 is improved to a certain extent, the radial swing is reduced, particularly the radial swing of the sealing member 300 is reduced, and the end face sealing performance of the multi-way valve is improved.

Optionally, a sealing ring 500 is disposed between the rotating shaft 400 and the second end of the valve body device 100. The sealing ring 500 further improves the sealing performance of the valve body device 100, and further improves the sealing performance of the multi-way valve.

1-6, in an alternative version of this embodiment, the multi-way valve further includes an actuator 600;

the actuator 600 is driven by the rotary shaft 400 to connect the valve core device 200 so as to drive the valve core device 200 to rotate. A power source is provided through the actuator 600 to rotate the valve core device 200. Optionally, actuator 600 is a motor.

Referring to fig. 3-1 through 3-13, in an alternative to the present embodiment, the valve body assembly 100 includes a valve seat 120 and an end cap 130; the valve seat 120 and the end cap 130 are fixedly connected and form an inner cavity for accommodating the valve core device 200; a first end of the valve body assembly 100 is disposed on the valve seat 120 and a second end of the valve body assembly 100 is disposed on the end cap 130.

The external flow port opening 110 is provided on the valve seat 120; optionally, a valve body bead 121 is disposed on the valve seat 120. Through the valve seat 120 and the end cap 130 to facilitate installation of the valve cartridge assembly 200 within the valve body assembly 100.

Alternatively, the valve seat 120 and the end cap 130 are connected by screws or hoops, or the valve seat 120 and the end cap 130 are welded, or the valve seat 120 and the end cap 130 are connected by other methods.

Referring to fig. 1 to 5, in an alternative of the present embodiment, a spool rotation limiting structure for limiting a rotation angle of the spool device 200 is provided between the valve body device 100 and the spool body 220. The valve core device 200 can rotate within a preset angle range through the valve core rotation limiting structure. Alternatively, the preset angle of rotation of the valve core device 200 is, for example, 160 °, 180 °, 195 °, or the like, wherein the preset angle of rotation of the valve core device 200 is a valve core angle.

For example, the valve core rotation restricting structure includes a valve body rotation restricting stopper 131 provided on the valve body device 100 and a valve core rotation restricting stopper 221 provided on the valve core body 220; one end of the valve element rotation limiting stop block 221 can abut against one end of the valve body rotation limiting stop block 131 along the circumferential direction of the valve element device 200, and after the valve element device 200 rotates for a certain angle, the other end of the valve element rotation limiting stop block 221 can abut against the other end of the valve body rotation limiting stop block 131.

Optionally, a valve body rotation limit stop 131 is provided on the end cap 130.

The multi-way valve described in this embodiment may be a four-way valve, a five-way valve, a seven-way valve, etc., and the five-way valve is taken as an example for description below. 5-1-5-6, in an alternative to this embodiment, the multi-way valve is a five-way valve.

The number of the spool flow passages 210 is three, and the three spool flow passages are respectively a first spool flow passage 211, a second spool flow passage 212 and a third spool flow passage 213; the center axis of the spool device 200 is disposed in the first spool flow passage 211, and the second and third

spool flow passages

212 and 213 are disposed at both sides of the first spool flow passage 211, respectively.

The number of the external flow port ports 110 is five, and the number is a first external flow port 111, a second external flow port 112, a third external flow port 113, a fourth external flow port 114, and a fifth external flow port 115. Optionally, the flowing medium in the first, third and fourth external

sub-flow openings

111, 113 and 114 have the same direction, for example, the first, third and fourth external

sub-flow openings

111, 113 and 114 are outlets; optionally, the direction of the flowing medium in the second external sub-runner port 112 and the fifth external sub-runner port 115 is the same, for example, the second external sub-runner port 112 and the fifth external sub-runner port 115 are inlets; and vice versa.

Alternatively, the first, fourth, fifth, second and third external

sub-flow openings

111, 114, 115, 112 and 113 are sequentially provided at intervals in the circumferential direction of the valve body device 100.

Alternatively, the multi-way valve has six rotational operating positions, i.e., six operating modes, as shown in table 1.

TABLE 1 mode of operation of the multi-way valve

Mode of operation	Open	Close off	Angle/degree of valve core
				1	2.5 in → 3 out	1、4	72.5
2	2 in → 3 out, 5 in → 1 out	4	185
				3	2 advances → 1, 5 advances → 4	3	162.5
4	2 in → 3, 5 in → 4 out	1	27.5
				5	2.5 in → 4 out	1、3	117.5
6	2.5 in → 1 out	3、4	5

The spool angles of the spool devices in table 1 are relative values. In the table, 1 of the open/close bar indicates a first external sub-stream port 111, 2 indicates a second external sub-stream port 112, and so on; in table 1, the second external sub-stream port 112 and the fifth external sub-stream port 115 are inlets, and the first external sub-stream port 111, the third external sub-stream port 113 and the fourth external sub-stream port 114 are outlets.

Referring to fig. 5-1, when the valve core device 200 is rotated to the first rotational operating position, for example, the valve core angle is 72.5 °, the second external sub-flow port 112 and the fifth external sub-flow port 115 are respectively communicated with the third external sub-flow port 113 through the second valve core flow passage 212; the first outer sub-stream port 111 and the fourth outer sub-stream port 114 are closed.

Referring to fig. 5-2, when the valve core device 200 is rotated to a second rotational operating position, for example, the valve core angle is 185 °, the second external sub-flow passage port 112 communicates with the third external sub-flow passage port 113 through the third valve core flow passage 213; the fifth external sub-flow port 115 communicates with the first external sub-flow port 111 through the first valve core flow passage 211; the fourth external sub-flow port 114 is closed.

Referring to fig. 5-3, when the valve core device 200 is rotated to a third rotational operating position, for example, the valve core angle is 162.5 °, the second external sub-flow port 112 communicates with the first external sub-flow port 111 through the first valve core flow passage 211; the fifth external sub-crossing 115 communicates with the fourth external sub-crossing 114 through the second valve spool flow passage 212; the third external sub-stream port 113 is closed.

Referring to fig. 5-4, when the valve core device 200 is rotated to a fourth rotational operating position, for example, a valve core angle of 27.5 °, the second external sub-flow passage port 112 communicates with the third external sub-flow passage port 113 through the second valve core flow passage 212; the fifth external sub-crossing 115 communicates with the fourth external sub-crossing 114 through the first valve core flow passage 211; the first external sub-stream port 111 is closed.

Referring to fig. 5-5, when the valve core device 200 is rotated to a fifth rotational operating position, for example, the valve core angle is 117.5 °, the second external sub-flow port 112 and the fifth external sub-flow port 115 are respectively communicated with the fourth external sub-flow port 114 through the second valve core flow passage 212; the first outer sub-stream port 111 and the third outer sub-stream port 113 are closed.

Referring to fig. 5-6, when the valve core device 200 is rotated to a sixth rotational operating position, for example, the valve core angle is 5 °, the second external sub-flow passage 112 and the fifth external sub-flow passage 115 are respectively communicated with the first external sub-flow passage 111 through the first valve core flow passage 211; the third external sub-flow port 113 and the fourth external sub-flow port 114 are closed.

Optionally, the second and third valve core flow

passages

212, 213 are fan-shaped and symmetrically disposed. Optionally, the five external flow openings 110 are identical in shape.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-way valve is characterized by comprising a valve body device, a valve core device and a sealing piece; the valve core device is rotatably arranged in the inner cavity of the valve body device, and the sealing element is relatively and fixedly arranged in the inner cavity of the valve body device;

2. The multi-way valve of claim 1, wherein the cartridge device includes a cartridge body; a plurality of valve core flow passages are arranged at the first end of the valve core body along the axial direction of the valve core device; the corresponding second end of the valve core body is matched with the second end of the valve body device.

3. The multi-way valve of claim 2, wherein the cartridge assembly further comprises a cartridge cover; the valve core cover body is fixedly connected with the first end of the valve core body in a sealing way;

4. The multi-way valve of claim 2, wherein a spool rotation limiting structure is disposed between the valve body means and the spool body for limiting a rotation angle of the spool means;

5. The multi-way valve of claim 1, wherein a rotation stop structure is provided between the valve body assembly and the seal for preventing rotation of the seal.

6. The multi-way valve of claim 5, wherein the anti-rotation structure comprises a valve body rib disposed on an inner surface of the valve body assembly and a sealing protrusion disposed on one side of the sealing member, the other side of the sealing member being a flat surface;

the outer peripheral surface of the sealing element and the inner peripheral surface of the valve body device are arranged at intervals;

7. The multi-way valve of claim 1, further comprising a rotating shaft; the rotating shaft is fixedly connected with the valve core device;

8. The multi-way valve of claim 1, wherein the valve body means includes a valve seat and an end cap; the valve seat and the end cover are fixedly connected and form an inner cavity for accommodating the valve core device; a first end of the valve body device is arranged on the valve seat, and a second end of the valve body device is arranged on the end cover;

the external flow passage port is arranged on the valve seat;

9. The multi-way valve of claim 1, wherein the multi-way valve is a five-way valve;

the number of the valve core flow passages is three, and the three valve core flow passages are respectively a first valve core flow passage, a second valve core flow passage and a third valve core flow passage; the central shaft of the valve core device is arranged in the first valve core flow passage, and the second valve core flow passage and the third valve core flow passage are respectively arranged at two sides of the first valve core flow passage;

the number of the external runner ports is five, and the external runner ports are respectively a first external sub-runner port, a second external sub-runner port, a third external sub-runner port, a fourth external sub-runner port and a fifth external sub-runner port; the first external sub-runner port, the fourth external sub-runner port, the fifth external sub-runner port, the second external sub-runner port and the third external sub-runner port are sequentially arranged at intervals along the circumferential direction of the valve body device;

the multi-way valve is provided with six rotary working positions;

when the valve core device rotates to a first rotating working position, the second external sub-runner port and the fifth external sub-runner port are respectively communicated with the third external sub-runner port through the second valve core runner;

when the valve core device rotates to a second rotating working position, the second external sub-runner port is communicated with the third external sub-runner port through the third valve core runner; the fifth external sub-crossing is communicated with the first external sub-crossing through the first valve core flow passage;

when the valve core device rotates to a third rotating working position, the second external sub-runner port is communicated with the first external sub-runner port through the first valve core runner; the fifth external sub-crossing is communicated with the fourth external sub-crossing through the second valve core flow passage;

when the valve core device rotates to a fourth rotating working position, the second external sub-runner port is communicated with the third external sub-runner port through the second valve core runner; the fifth external sub-crossing is communicated with the fourth external sub-crossing through the first valve core flow passage;

when the valve core device rotates to a fifth rotating working position, the second external sub-runner port and the fifth external sub-runner port are respectively communicated with the fourth external sub-runner port through the second valve core runner;

when the valve core device rotates to a sixth rotating working position, the second external sub-runner port and the fifth external sub-runner port are respectively communicated with the first external sub-runner port through the first valve core sub-runner.

10. The multi-way valve of claim 9 wherein the direction of flow media in the first, third and fourth outer sub-flow openings is the same, and the direction of flow media in the second and fifth outer sub-flow openings is the same;

the second valve core flow passage and the third valve core flow passage are fan-shaped and are symmetrically arranged;

the five external flow passage openings have the same shape.