CN117869626A - Multi-way valve - Google Patents

Abstract

The invention discloses a multi-way valve, comprising: the valve body is internally provided with an installation cavity and is provided with a plurality of first flow passage openings and a plurality of second flow passage openings; the valve core is rotationally arranged in the installation cavity, the valve core comprises a first core section and a second core section along the axial direction of the valve core, a plurality of first channels which are not communicated with each other are arranged on the first core section, each first channel is communicated with at least two first channel ports, a plurality of second channels which are not communicated with each other are arranged on the second core section, each second channel is communicated with at least two second channel ports, a second rotating shaft is arranged on one side, deviating from the first core section, of the second core section, the second rotating shaft extends out of the installation cavity, a first rotating shaft is arranged on one side, facing the second core section, of the first core section, and the first rotating shaft is rotationally arranged in the second core section and the second rotating shaft in a penetrating mode. According to the multi-way valve, the control precision of the rotation angles of the first core section and the second core section can be improved, the space utilization rate can be improved, and the cost is reduced.

Description

Multi-way valve

Technical Field

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

Background

In the related art, in order to solve the requirement of the multi-way water valve in the market, two valve cores can be used for realizing the multi-way water channel, when the existing multi-way water valve is controlled and driven by two actuators, the cost of the multi-way valve is higher, the space utilization rate is low, or the existing multi-way valve only controls and drives one valve core, and the other valve core is controlled by a driven switch, so that the control precision is low and the multi-way water valve is easy to fail.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the multi-way valve which has high control precision and high space utilization rate.

According to an embodiment of the invention, a multi-way valve includes: the valve body is internally provided with an installation cavity, and is provided with a plurality of first flow passage openings and a plurality of second flow passage openings; the valve core is rotatably arranged in the mounting cavity, the valve core comprises a first core section and a second core section along the axial direction of the valve core, a plurality of first channels which are not communicated with each other are arranged on the first core section, each first channel is communicated with at least two first flow ports, a plurality of second channels which are not communicated with each other are arranged on the second core section, each second channel is communicated with at least two second flow ports, a second rotating shaft is arranged on one side, deviating from the first core section, of the second core section, the second rotating shaft extends out of the mounting cavity, a first rotating shaft is arranged on one side, facing the second core section, of the first core section, and the first rotating shaft rotatably penetrates through the second core section and the second rotating shaft.

According to the multi-way valve provided by the embodiment of the invention, the second rotating shaft is arranged on one side, away from the first core section, of the second core section, and extends out of the mounting cavity, the first rotating shaft is arranged on one side, facing the second core section, of the first core section, and rotatably penetrates into the second core section and the second rotating shaft, and the first rotating shaft and the second rotating shaft can be driven to rotate through the actuator, so that the first core section and the second core section are respectively driven to rotate. The first core section and the second core section are all actively driven, so that the control accuracy of the rotation angle of the first core section and the second core section can be improved, meanwhile, the first core section and the second core section are integrated in one installation cavity, the first rotation shaft and the second rotation shaft extend towards the valve body in one axial direction, the space utilization rate can be improved, and the cost is reduced.

According to some embodiments of the invention, an end of the first rotational axis remote from the first core segment passes out of the second rotational axis.

According to some embodiments of the invention, further comprising: the third rotating shaft is positioned outside the mounting cavity, is rotatably arranged on the axial end face of the valve body far away from the first core section, and is in transmission connection with the second rotating shaft, and the axis of the third rotating shaft is arranged at intervals with the axis of the first rotating shaft.

In some embodiments of the present invention, an axis of the third rotating shaft is parallel to an axis of the second rotating shaft, a first gear is sleeved and fixed on the second rotating shaft, a second gear is sleeved and fixed on the third rotating shaft, and the first gear and the second gear are meshed.

In some embodiments of the invention, the first gear and the second gear have a gear ratio of 1:1.

in some embodiments of the invention, the first gear and the second rotational shaft are separate pieces; and/or the second gear and the third rotating shaft are integrated.

According to some embodiments of the invention, the first rotation shaft and the first core segment are one piece; and/or the second rotating shaft and the second core segment are a single piece.

According to some embodiments of the present invention, a plurality of flow channel cavities are further provided in the valve body, the plurality of flow channel cavities are located at the radial outer side of the installation cavity and are distributed at intervals along the circumferential direction of the installation cavity, the first flow channel opening and the second flow channel opening are provided on an axial end surface of the valve body, which is far away from the first rotating shaft and passes out, the plurality of second flow channel openings are respectively communicated with the plurality of flow channel cavities, a plurality of third flow channel openings respectively communicated with the plurality of flow channel cavities are provided on the inner wall of the installation cavity, and each second channel is communicated with at least two third flow channel openings.

In some embodiments of the present invention, a plurality of third fluid passages are provided on a peripheral wall of the installation cavity and are arranged at intervals along a circumferential direction of the installation cavity, and openings at two ends of each second passage are located on an outer peripheral wall of the second core section.

In some embodiments of the present invention, the opening of the second channel is located on an axial end face of the second core section facing away from the first core section, an axial end of the valve body facing away from the first core section is provided with a plurality of communication channels, one ends of the communication channels are respectively communicated with the flow channel cavities, and the other ends of the communication channels are provided with third flow channel ports communicated with the mounting cavity.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a perspective view of a multi-way valve according to a first embodiment of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is another angular perspective view of the multi-way valve according to the first embodiment of the present invention;

FIG. 4 is a top view of a multi-way valve according to a first embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is an enlarged view at C in FIG. 5;

fig. 7 is a bottom view of the multi-way valve according to the first embodiment of the present invention;

fig. 8 is a perspective view of a valve body of a multi-way valve according to a first embodiment of the present invention;

fig. 9 is a perspective view of a spool of a multi-way valve according to a first embodiment of the present invention;

FIG. 10 is a perspective view of a second spool section of the spool of the multi-way valve according to the first embodiment of the present invention;

FIG. 11 is a front view of a second spool section of the spool of the multi-way valve according to the first embodiment of the present invention;

FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11;

FIG. 13 is a perspective view of a first spool section of a spool of a multi-way valve according to a first embodiment of the present invention;

FIG. 14 is a front view of a first spool section of a spool of a multi-way valve according to a first embodiment of the present invention;

FIG. 15 is a cross-sectional view taken along line E-E of FIG. 14;

fig. 16 is a perspective view of a multi-way valve according to a second embodiment of the present invention;

FIG. 17 is a top view of a multi-way valve according to a second embodiment of the present invention;

FIG. 18 is a cross-sectional view taken along line F-F of FIG. 17;

FIG. 19 is a perspective view of a multi-way valve according to a second embodiment of the present invention with a valve cover hidden;

fig. 20 is a perspective view of a spool of a multi-way valve according to a second embodiment of the present invention;

fig. 21 is a perspective view of a multi-way valve according to a third embodiment of the present invention;

fig. 22 is a perspective view of a spool of a multi-way valve according to a third embodiment of the present invention;

fig. 23 is a perspective view of a multi-way valve according to a fourth embodiment of the present invention;

FIG. 24 is a perspective view of a multi-way valve according to a fourth embodiment of the present invention with a valve cover hidden;

fig. 25 is a perspective view of a spool of a multi-way valve according to a fourth embodiment of the present invention.

Reference numerals:

100. a multi-way valve;

1. a valve body; 11. a mounting cavity; 12. a flow channel cavity; 13. a first fluid port; 14. a second fluid port; 15. a third fluid port; 151. reinforcing ribs; 16. a valve body; 17. a valve cover; 18. a communication passage;

2. a valve core; 21. a first core segment; 211. a first channel; 212. a first rotation shaft; 22. a second core segment; 221. a second channel; 222. a second rotation shaft; 223. a first gear;

3. a third rotation shaft; 31. and a second gear.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

A multi-way valve 100 according to an embodiment of the present invention is described below with reference to fig. 1-15.

As shown in fig. 1, 5 and 9, a multi-way valve 100 according to an embodiment of the present invention includes a valve body 1 and a valve spool 2.

As shown in fig. 1, 5 and 8, the outer contour of the valve body 1 is generally cylindrical, the valve body 1 has a mounting chamber 11 therein, and the mounting chamber 11 has a circular cross section. As shown in fig. 3 and 7, the valve body 1 is provided with a plurality of first fluid passage openings 13 and a plurality of second fluid passage openings 14, and specifically, the first fluid passage openings 13 and the second fluid passage openings 14 are provided on an end face of one axial end of the valve body 1.

As shown in fig. 5 and 9, the valve core 2 is rotatably disposed in the mounting cavity 11, and along the axial direction of the valve core 2, the valve core 2 includes a first core section 21 and a second core section 22, as shown in fig. 11 and 12, a plurality of first channels 211 which are not communicated with each other are disposed on the first core section 21, each first channel 211 is communicated with at least two first channel ports 13, as shown in fig. 14 and 15, a plurality of second channels 221 which are not communicated with each other are disposed on the second core section 22, and each second channel 221 is communicated with at least two second channel ports 14.

Wherein the communication state of the first passage 211 can be changed by rotating the spool 2 and the first passage 211 can be made to communicate with different first fluid ports 13, thereby changing the flow direction of the liquid, while the communication state of the second passage 221 can also be changed and the second passage 221 can be made to communicate with different second fluid ports 14, thereby changing the flow direction of the liquid.

As shown in fig. 1, 9, 10 and 13, a second rotation shaft 222 is disposed on a side of the second core section 22 facing away from the first core section 21, the second rotation shaft 222 extends out of the mounting cavity 11, a first rotation shaft 212 is disposed on a side of the first core section 21 facing toward the second core section 22, the first rotation shaft 212 rotatably penetrates through the second core section 22 and the second rotation shaft 222, and an axis of the first rotation shaft 212 and an axis of the second rotation shaft 222 may be coincident. The first core segment 21 and the second core segment 22 each have an independent rotation axis, and the first rotation axis 212 and the second rotation axis 222 may be driven to rotate by one actuator connected to both the first rotation axis 212 and the second rotation axis 222; the first rotation shaft 212 and the second rotation shaft 222 may be driven to rotate by two independent actuators, which are respectively connected to the first rotation shaft 212 and the second rotation shaft 222 to respectively drive the first core segment 21 and the second core segment 22 to rotate.

In this application, first core section 21 and second core section 22 are respectively through first axis of rotation 212 and second axis of rotation 222 by the initiative drive of executor, can improve the control accuracy to the rotation angle of first core section 21 and second core section 22, simultaneously, first core section 21 and second core section 22 integrate in an installation cavity 11, and first axis of rotation 212 and second axis of rotation 222 all towards an axial extension of valve body 1 can improve space utilization, reduce cost.

According to the multi-way valve 100 of the embodiment of the present invention, the second rotation shaft 222 is disposed on the side of the second core segment 22 facing away from the first core segment 21, the second rotation shaft 222 extends out of the installation cavity 11, the first rotation shaft 212 is disposed on the side of the first core segment 21 facing towards the second core segment 22, the first rotation shaft 212 rotatably penetrates into the second core segment 22 and the second rotation shaft 222, and the first rotation shaft 212 and the second rotation shaft 222 can be driven to rotate by an actuator, so that the first core segment 21 and the second core segment 22 are driven to rotate respectively. Wherein, first core section 21 and second core section 22 are initiative drive, can improve the control accuracy to the rotation angle of first core section 21 and second core section 22, simultaneously, first core section 21 and second core section 22 integrate in an installation cavity 11, and first axis of rotation 212 and second axis of rotation 222 all towards an axial extension of valve body 1 can improve space utilization, reduce cost.

In some embodiments of the present invention, as shown in fig. 1, 2, 5 and 6, the end of the first rotational shaft 212 remote from the first core segment 21 passes out of the second rotational shaft 222. Thereby facilitating the connection of the actuator to the first rotation shaft 212 and thus facilitating the rotation of the first rotation shaft 212 and thus the first core segment 21.

Further, a sealing ring is disposed between the outer circumferential wall of the first rotating shaft 212 and the inner circumferential wall of the second rotating shaft 222, so that sealing between the outer circumferential wall of the first rotating shaft 212 and the inner circumferential wall of the second rotating shaft 222 can be achieved, and leakage of the liquid in the first channel 211 or the second channel 221 through the gap between the outer circumferential wall of the first rotating shaft 212 and the inner circumferential wall of the second rotating shaft 222 is avoided, thereby ensuring the reliability of the operation of the multi-way valve 100. Still further, the seal ring is a plurality of seal rings spaced apart in the axial direction of the first rotating shaft 212.

Optionally, the outer peripheral wall of the first rotating shaft 212 is provided with a sealing groove, which is an annular groove extending along the circumferential direction of the first rotating shaft 212, and the sealing ring is arranged in the sealing groove.

In some embodiments of the present invention, as shown in fig. 1, 2, 5, 6 and 9, the multi-way valve 100 further includes a third rotation shaft 3, where the third rotation shaft 3 is located outside the mounting cavity 11 and is rotatably disposed on an axial end surface of the valve body 1 away from the first core segment 21, the third rotation shaft 3 is in driving connection with the second rotation shaft 222, and an axis of the third rotation shaft 3 is spaced from an axis of the first rotation shaft 212. The actuator can be connected with the third rotating shaft 3, and the second rotating shaft 222 is driven by the transmission between the third rotating shaft 3 and the second rotating shaft 222, so that the problem that the actuator is inconvenient to drive the first rotating shaft 212 and the second rotating shaft 222 due to the fact that the axes of the first rotating shaft 212 and the second rotating shaft 222 are overlapped is avoided.

Alternatively, as shown in fig. 1, 2, 5, 6 and 9, the axis of the third rotating shaft 3 is parallel to the axis of the second rotating shaft 222, the second rotating shaft 222 is sleeved and fixed with the first gear 223, the third rotating shaft 3 is sleeved and fixed with the second gear 31, and the first gear 223 is meshed with the second gear 31. The gear transmission precision is high, the stability is high, and the transmission precision between the third rotating shaft 3 and the second rotating shaft 222 can be improved, so that the control precision of the rotating angle of the second core section 22 is improved.

Specifically, the transmission ratio of the first gear 223 and the second gear 31 may be 1:1. it is thereby ensured that the rotational speeds of the first gear 223 and the second gear 31 are the same, facilitating control of the second rotation shaft 222 by the third rotation shaft 3. Wherein the number of teeth of the first gear 223 and the second gear 31 may be the same, so as to ensure that the transmission ratio of the first gear 223 and the second gear 31 is 1:1. of course, the present invention is not limited thereto, and the transmission ratio of the first gear 223 and the second gear 31 may be greater than 1 or less than 1.

Of course, the present invention is not limited thereto, and the transmission connection between the third rotation shaft 3 and the second rotation shaft 222 may be a worm gear structure transmission connection, a chain or a belt, or the like.

Alternatively, as shown in fig. 6, the first gear 223 and the second rotation shaft 222 are separate members, when the second core segment 22 and the second rotation shaft 222 are assembled, the second core segment 22 and the second rotation shaft 222 may be assembled into the installation cavity 11, then the second rotation shaft 222 is penetrated out of the installation cavity 11, and the first gear 223 is sleeved and fixed on the second rotation shaft 222, so that the second core segment 22 is installed into the installation cavity 11.

Wherein, the second rotation shaft 222 has a mounting section, the outer contour of the cross section of the mounting section is non-circular, the first gear 223 can be mounted on the mounting section, the cross section of the inner peripheral wall of the first gear 223 is non-circular matched with the mounting section, so that the rotation of the first gear 223 is transmitted to the second rotation shaft 222, and the coaxial rotation of the first gear 223 and the second rotation shaft 222 is realized.

Alternatively, as shown in fig. 6, the second gear 31 and the third rotation shaft 3 are one piece. Thereby, the assembling process between the second gear 31 and the third rotation shaft 3 can be simplified, and the production efficiency can be improved.

In some embodiments of the present invention, as shown in fig. 6, a mounting groove 171 is formed on an axially outer end surface of the valve body 1, and one end of the third rotating shaft 3 is rotatably disposed in the mounting groove 171, so that the third rotating shaft 3 is convenient to fix, and better support can be provided for the third rotating shaft 3, so that the third rotating shaft 3 is convenient to rotate.

In some embodiments of the present invention, as shown in fig. 4 to 6, the first rotation shaft 212 and the first core segment 21 are integrally formed, so that an assembling process between the first rotation shaft 212 and the first core segment 21 can be saved, and the production efficiency can be improved. The second rotation shaft 222 and the second core segment 22 are integrated, so that the assembly process between the second rotation shaft 222 and the second core segment 22 can be saved, and the production efficiency can be improved.

In some embodiments of the present invention, as shown in fig. 3, 5, 7, 8, 11, 12, 14 and 15, a plurality of flow channel cavities 12 are further disposed in the valve body 1, the plurality of flow channel cavities 12 are located radially outside the installation cavity 11 and are arranged at intervals along the circumferential direction of the installation cavity 11, and the flow channel cavities 12 may extend along the circumferential direction of the valve body 1. The first fluid passage opening 13 and the second fluid passage opening 14 are arranged on the axial end surface of the valve body 1, which is penetrated out from the first rotating shaft 212, the plurality of second fluid passage openings 14 are respectively communicated with the plurality of fluid passage cavities 12, a plurality of third fluid passage openings 15 respectively communicated with the plurality of fluid passage cavities 12 are arranged on the inner wall of the installation cavity 11, and each second channel 221 is communicated with at least two third fluid passage openings 15.

It will be appreciated that the number of the first fluid passage ports 13 is plural, the number of the second fluid passage ports 14 is plural, the number of the fluid passage chambers 12 may be the same as the number of the second fluid passage ports 14, the plurality of the second fluid passage ports 14 are respectively in one-to-one correspondence with the plurality of fluid passage chambers 12, the number of the third fluid passage ports 15 is plural, the number of the third fluid passage ports 15 may be the same as the number of the fluid passage chambers 12, the plurality of the third fluid passage ports 15 are respectively in one-to-one correspondence with the plurality of fluid passage chambers 12, the third fluid passage ports 15 are respectively in communication with the mounting chamber 11 and the fluid passage chamber 12, and the fluid passage chambers 12 are in communication with the second fluid passage ports 14 and the third fluid passage ports 15.

In this application, when the first channel 211 is in communication with two first fluid passages 13 at the same time, the liquid may enter one of the first fluid passages 13 from the axial end surface of the valve body 1, then enter the first channel 211, and finally flow out from the other first fluid passage 13 in communication with the first channel 211, and the outflow side of the liquid is on the same side as the inflow side of the liquid. When the second channel 221 is in communication with the two third fluid passage ports 15, the liquid may flow into the fluid passage chamber 12 from the second fluid passage port 14 in communication with the fluid passage chamber 12 in communication with the third fluid passage port 15, then flow into the second channel 221 through the third fluid passage port 15, finally flow into the corresponding fluid passage chamber 12 from the third fluid passage port 15 in communication with the second channel 221, and then flow out from the corresponding second fluid passage port 14, the outflow side of the liquid and the inflow side of the liquid are on the same side, and the outflow side of the liquid and the inflow side of the liquid of the first core section 21 and the outflow side of the liquid and the inflow side of the liquid of the second core section 22 are on the same side, thereby facilitating the arrangement of the piping connected to the multi-way valve 100 and facilitating space saving.

In some embodiments of the present invention, a second gasket is provided between an axial end surface of the valve element 2 facing the first flow passage opening 13 and an inner wall surface of an axial end of the installation cavity 11, and a relief opening which is opposite to and communicates with the plurality of first flow passage openings 13 is provided on the second gasket. Thus, when the first channel 211 and the first fluid passage opening 13 are communicated, the sealing between the first channel 211 and the first fluid passage opening 13 can be realized, and the reliability of the operation of the multi-way valve 100 can be improved.

Optionally, as shown in fig. 3 and fig. 7, the plurality of first fluid passages 13 are arranged at intervals along the circumferential direction of the valve body 1, so that the arrangement of the plurality of first fluid passages 13 is more compact and reasonable, the number of the first channels 211 can be relatively increased, the multi-way requirement of the multi-way valve 100 is realized, and the higher requirement is met. The plurality of second fluid passage openings 14 are located radially outside the first fluid passage opening 13 and are arranged at intervals in the circumferential direction of the valve body 1.

In some examples of the present invention, as shown in fig. 10 to 15, a plurality of third fluid passage ports 15 are provided on the peripheral wall of the installation cavity 11 and are arranged at intervals in the circumferential direction of the installation cavity 11, both end openings of each second channel 221 are located on the peripheral wall of the second core section 22, and both ends of the second channel 221 are adapted to be in direct communication with the two third fluid passage ports 15, respectively, so as to facilitate communication between the second channel 221 and the third fluid passage ports 15; as shown in fig. 13, the opening of the first channel 211 is located on the axial end face of the first core segment 21 facing away from the second core segment 22, facilitating communication of the first channel 211 with the first fluid passage opening 13.

The second core section 22 adopts a structure of a spool valve, and when the liquid in the flow channel cavity 12 flows into the second channel 221, the liquid directly flows into the second channel 221 along the radial direction of the valve body 1, so that the stroke is shorter, the bending is less, and the flow resistance is smaller. The first core section 21 adopts a structural form of a disc valve, improves the space utilization rate, is beneficial to the arrangement of multiple channels, and has lower cost. In this application, through making first core section 21 adopt the structural style of disk valve, second core section 22 adopts the structural style of column valve, not only can improve space utilization, is favorable to multichannel setting, and can reduce the flow resistance, and can satisfy complicated through way demand, and the volume is less.

For example, in the examples shown in fig. 3, 10 to 12, the flow passage chambers 12 are four spaced apart in the circumferential direction of the valve body 1, the second flow passage ports 14 are four spaced apart in the circumferential direction of the valve body 1, and correspondingly, as shown in fig. 8, the third flow passage ports 15 are four spaced apart in the circumferential direction of the valve body 1, the second passages 221 are two, each of the second passages 221 has two openings on the circumferential wall of the second core section 22, and the four openings are disposed at intervals in the circumferential direction of the second core section 22. Wherein, the four third fluid passage ports 15 are respectively No. 1, no. 2, no. 3 and No. 4 which are sequentially arranged along the circumferential direction of the valve body 1, in one state, each second channel 221 is communicated with two third fluid passage ports 15, one second channel 221 is communicated with No. 1 and No. 2, and the other second channel 221 is communicated with No. 3 and No. 4; the valve core 2 is rotated to another state, wherein one of the second passages 221 communicates with No. 2 and No. 3, and the other second passage 221 communicates with No. 4 and No. 1, whereby the flow direction of the liquid can be changed. Wherein at least one second fluid port 14 may be in a blocked state such that at least one of the plurality of second channels 221 may be blocked from communication when rotated into communication with the third fluid port 15 in communication with the fluid passage chamber 12 in communication with the second fluid port 14.

As another example, in the examples shown in fig. 3, 13 to 15, the first flow passages 13 are eight spaced apart in the circumferential direction of the valve body 1, the first passages 211 are four, each of the first passages 211 has two openings on the axial end face of the first core segment 21, there is one first passage 211 extending from one side of the first core segment 21 to the opposite side of the first core segment 21, that is, the two openings of the first passage 211 are located on the opposite sides of the first core segment 21, and the two openings of the remaining first passages 211 are adjacent and disposed in communication in the circumferential direction of the first core segment 21. Wherein eight first fluid passages 13 are respectively No. 1, no. 2, no. 3, no. 4, no. 5, no. 6, no. 7 and No. 8 along the circumferential direction of the valve body 1, in one of the states, one of the first passages 211 communicates No. 1 and No. 2, one of the first passages 211 communicates No. 3 and No. 8, one of the first passages 211 communicates No. 4 and No. 5, and one of the first passages 211 communicates No. 6 and No. 7; the valve core 2 is rotated to another state, wherein one of the first passages 211 communicates No. 2 and No. 3, one of the first passages 211 communicates No. 4 and No. 1, one of the first passages 211 communicates No. 5 and No. 6, and one of the first passages 211 communicates No. 7 and No. 8, whereby the flow direction of the liquid can be changed. Wherein at least one first fluid passage opening 13 may be in a blocked state such that an opening of at least one of the plurality of first channels 211 may be blocked from conduction when rotated to the first fluid passage opening 13.

Further, a plurality of first gaskets are provided between the outer peripheral wall of the spool 2 and the inner peripheral wall of the installation chamber 11, the plurality of first gaskets are in one-to-one correspondence with the plurality of third flow passage ports 15, and each first gasket is disposed around the corresponding third flow passage port 15. Thus, when the second channel 221 and the third channel port 15 communicate, sealing between the second channel 221 and the third channel port 15 can be achieved, and the reliability of the operation of the multi-way valve 100 can be improved.

Optionally, the plurality of first sealing gaskets are integrated, so that the first sealing gaskets are convenient to assemble, and the assembly efficiency is improved. Of course, the present invention is not limited thereto, and the plurality of first gaskets may be a plurality of independent split members, so that the structure and the processing process of the first gaskets may be simplified, and the production efficiency may be improved.

Further, as shown in fig. 8, the third flow passage opening 15 extends in the circumferential direction of the valve body 1, whereby the area of the third flow passage opening 15 can be increased, ensuring the smoothness of the flow of the liquid between the second passage 221 and the flow passage chamber 12. Further, as shown in fig. 8, the third flow passage opening 15 is provided therein with the reinforcing ribs 151, and both ends of the reinforcing ribs 151 are respectively connected to both inner walls of the third flow passage opening 15 opposite to each other in the axial direction of the valve body 1, whereby the structural strength of the valve body 1 at the third flow passage opening 15 can be enhanced.

Further, as shown in fig. 8, the length of the third fluid passage opening 15 in the circumferential direction of the valve body 1 is larger than the length of the opening of any one of the second passages 221 in the circumferential direction of the valve body 1, thereby facilitating alignment between the opening of the second passage 221 and the third fluid passage opening 15, facilitating communication between the opening of the second passage 221 and the third fluid passage opening 15, and ensuring the communication area between the second passage 221 and the fluid passage chamber 12 and smoothness of fluid flow.

In other embodiments of the present invention, as shown in fig. 16 to 20, the opening of the second channel 221 is located on the axial end surface of the second core segment 22 facing away from the first core segment 21, the axial end of the valve body 1 facing away from the first core segment 21 is provided with a plurality of communication channels 18, one ends of the plurality of communication channels 18 are respectively communicated with the plurality of runner chambers 12, the other ends of the plurality of communication channels 18 are provided with third runner ports 15 communicated with the mounting chamber 11, and each second channel 221 is communicated with at least two third runner ports 15. As shown in fig. 13, the opening of the first channel 211 is located on the axial end face of the first core segment 21 facing away from the second core segment 22, facilitating communication of the first channel 211 with the first fluid passage opening 13.

It will be appreciated that the number of the communication channels 18 may be the same as the number of the flow channel chambers 12, the plurality of communication channels 18 may be arranged at intervals along the circumferential direction of the valve body 1, the radially outer ends of the plurality of communication channels 18 are respectively in one-to-one correspondence with the plurality of flow channel chambers 12, one third flow channel opening 15 is formed on a side, facing the valve core 2, of the radially inner end of each communication channel 18, and each second channel 221 is communicated with at least two third flow channel openings 15.

Wherein, first core section 21 and second core section 22 all adopt the structural style of disk valve, and the opening of first passageway 211 and second passageway 221 is located the one side that first core section 21 and second core section 22 deviate from each other respectively and opening opposite direction, improves space utilization, is favorable to multichannel setting, and the cost is lower.

In some embodiments of the present invention, as shown in fig. 1, the valve body 1 includes a valve body 16 and a valve cover 17. The valve body 16 is an integral piece, the valve cover 17 is connected with the valve body 16 and jointly defines the mounting cavity 11, the flow passage cavity 12 is arranged in the valve body 16, and the first flow passage opening 13 and the second flow passage opening 14 are arranged on the axial end face of the valve body 16, which is away from the valve cover 17. This facilitates the assembly of the valve element 2 and also simplifies the assembly process of the multi-way valve 100 to a greater extent.

Further, a sealing gasket can be arranged between the valve body 16 and the valve cover 17, so that the tightness of the valve body 1 is ensured, and the leakage of the valve body 1 is avoided.

The following description of the multi-way valve 100 in accordance with four embodiments of the present invention is to be understood as exemplary only, and is not to be construed as limiting the invention.

Example 1

As shown in fig. 1 to 15, a multi-way valve 100 according to an embodiment of the present invention includes a valve body 1 and a valve spool 2.

As shown in fig. 1, 5 and 8, the valve body 1 has a mounting chamber 11 therein, and the mounting chamber 11 has a circular cross section. As shown in fig. 3 and 7, the valve body 1 is provided with a plurality of first fluid passage openings 13 and a plurality of second fluid passage openings 14, and specifically, the first fluid passage openings 13 and the second fluid passage openings 14 are provided on an end face of one axial end of the valve body 1.

As shown in fig. 5 and 9, the valve core 2 is rotatably disposed in the mounting cavity 11, and along the axial direction of the valve core 2, the valve core 2 includes a first core section 21 and a second core section 22, as shown in fig. 11 and 12, a plurality of first channels 211 which are not communicated with each other are disposed on the first core section 21, each first channel 211 is communicated with at least two first channel ports 13, as shown in fig. 14 and 15, a plurality of second channels 221 which are not communicated with each other are disposed on the second core section 22, and each second channel 221 is communicated with at least two second channel ports 14.

As shown in fig. 1, 9, 10 and 13, a second rotating shaft 222 is disposed on a side of the second core section 22 facing away from the first core section 21, the second rotating shaft 222 extends out of the mounting cavity 11, a first rotating shaft 212 is disposed on a side of the first core section 21 facing toward the second core section 22, the first rotating shaft 212 rotatably penetrates into the second core section 22 and the second rotating shaft 222, and an end of the first rotating shaft 212, far away from the first core section 21, penetrates out of the second rotating shaft 222, and an axis of the first rotating shaft 212 and an axis of the second rotating shaft 222 may be coincident. The first core segment 21 and the second core segment 22 each have an independent rotation axis, and the first rotation axis 212 and the second rotation axis 222 may be driven to rotate by one actuator connected to both the first rotation axis 212 and the second rotation axis 222; the first rotation shaft 212 and the second rotation shaft 222 may be driven to rotate by two independent actuators, which are respectively connected to the first rotation shaft 212 and the second rotation shaft 222 to respectively drive the first core segment 21 and the second core segment 22 to rotate.

In this application, first core section 21 and second core section 22 are respectively through first axis of rotation 212 and second axis of rotation 222 by the initiative drive of executor, can improve the control accuracy to the rotation angle of first core section 21 and second core section 22, simultaneously, first core section 21 and second core section 22 integrate in an installation cavity 11, and first axis of rotation 212 and second axis of rotation 222 all towards an axial extension of valve body 1 can improve space utilization, reduce cost.

In addition, as shown in fig. 1, 2, 5, 6 and 9, the multi-way valve 100 further includes a third rotation shaft 3, where the third rotation shaft 3 is located outside the installation cavity 11 and is rotatably disposed on an axial end surface of the valve body 1 away from the first core segment 21, the third rotation shaft 3 is in transmission connection with the second rotation shaft 222, and an axis of the third rotation shaft 3 is disposed at a distance from an axis of the first rotation shaft 212.

Specifically, the axis of the third rotating shaft 3 is parallel to the axis of the second rotating shaft 222, the second rotating shaft 222 is sleeved and fixed with the first gear 223, the third rotating shaft 3 is sleeved and fixed with the second gear 31, and the first gear 223 is meshed with the second gear 31. Wherein the transmission ratio of the first gear 223 and the second gear 31 may be 1:1, the first gear 223 and the second rotation shaft 222 are separate pieces, and the second gear 31 and the third rotation shaft 3 are an integral piece.

Further, as shown in fig. 3, 5, 7, 8, 11, 12, 14 and 15, a plurality of runner cavities 12 are further disposed in the valve body 1, the runner cavities 12 are located radially outside the installation cavity 11 and are arranged at intervals along the circumferential direction of the installation cavity 11, and the runner cavities 12 may extend along the circumferential direction of the valve body 1. The first fluid passage opening 13 and the second fluid passage opening 14 are arranged on the axial end face of the valve body 1, which is far away from the first rotating shaft 212 and penetrates out, the plurality of second fluid passage openings 14 are respectively communicated with the plurality of fluid passage cavities 12, a plurality of third fluid passage openings 15 which are respectively communicated with the plurality of fluid passage cavities 12 are arranged on the peripheral wall of the installation cavity 11, the plurality of third fluid passage openings 15 are arranged on the peripheral wall of the installation cavity 11 at intervals along the circumferential direction of the installation cavity 11, openings at two ends of each second channel 221 are positioned on the peripheral wall of the second core section 22, and each second channel 221 is communicated with at least two third fluid passage openings 15.

As shown in fig. 13, the opening of the first channel 211 is located on the axial end face of the first core segment 21 facing away from the second core segment 22, facilitating communication of the first channel 211 with the first fluid passage opening 13.

Further, as shown in fig. 8, the third flow passage opening 15 is provided therein with the reinforcing ribs 151, and both ends of the reinforcing ribs 151 are respectively connected to both inner walls of the third flow passage opening 15 opposite to each other in the axial direction of the valve body 1, whereby the structural strength of the valve body 1 at the third flow passage opening 15 can be enhanced.

In this embodiment, the second core section 22 adopts a cylindrical valve structure, and when the liquid in the flow channel cavity 12 flows into the second channel 221, the liquid directly flows into the second channel 221 along the radial direction of the valve body 1, so that the stroke is shorter, the bending is fewer, and the flow resistance is smaller. The first core section 21 adopts a structural form of a disc valve, improves the space utilization rate, is beneficial to the arrangement of multiple channels, and has lower cost. In this application, through making first core section 21 adopt the structural style of disk valve, second core section 22 adopts the structural style of column valve, not only can improve space utilization, is favorable to multichannel setting, and can reduce the flow resistance, and can satisfy complicated through way demand, and the volume is less.

Example two

As shown in fig. 16 to 20, the present embodiment is substantially the same as the first embodiment in that the same components are denoted by the same reference numerals, except that the second core section is in the form of a disk valve, the opening of the second channel 221 is located on the axial end face of the second core section 22 facing away from the first core section 21, the axial end of the valve body 1 facing away from the first core section 21 is provided with a plurality of communication channels 18, one ends of the plurality of communication channels 18 are respectively communicated with the plurality of flow channel cavities 12, the other ends of the plurality of communication channels 18 are provided with third flow channel ports 15 communicated with the mounting cavity 11, and each second channel 221 is communicated with at least two third flow channel ports 15. The structure of the first core segment 21 is identical to that of the first core segment 21 of the first embodiment, and is in the form of a disc valve structure, and the opening of the first channel 211 is located on the axial end surface of the first core segment 21, which is away from the second core segment 22, so that the first channel 211 is convenient to communicate with the first channel mouth 13.

In the present embodiment, the both ends of the reinforcing rib 151 in the third flow passage opening 15 are connected to the both inner walls of the third flow passage opening 15 facing each other in the radial direction of the valve body 1. A third sealing gasket is arranged between the axial end face of the valve core 2, which is far away from the first fluid passage opening 13, namely the axial end face of the second core section 22, which is far away from the first core section 21, and the inner wall face of the axial end of the installation cavity 11, and is provided with an avoidance opening which is opposite to and communicated with the third fluid passage openings 15.

Example III

As shown in fig. 21 and 22, the structure of the present embodiment is substantially the same as that of the first embodiment, wherein like reference numerals are used for like parts, and the difference is that the present embodiment is different from the first embodiment in that the third rotation shaft 3 is absent, and the second gear 31 sleeved on the third rotation shaft 3 and the first gear 223 sleeved on the second rotation shaft 222 are omitted, and the rest of the structures may be completely the same. Wherein the actuator may be directly coupled to the first and second rotational shafts 212, 222, or coupled through other structures.

Example IV

As shown in fig. 23 to 24, the structure of the present embodiment is substantially the same as that of the second embodiment, wherein like reference numerals are used for like parts, and the difference is that the present embodiment lacks the third rotation shaft 3, the second gear 31 sleeved on the third rotation shaft 3, and the first gear 223 sleeved on the second rotation shaft 222, and the rest of the structures may be completely the same. Wherein the actuator may be directly coupled to the first and second rotational shafts 212, 222, or coupled through other structures.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A multi-way valve, comprising:

the valve comprises a valve body (1), wherein an installation cavity (11) is formed in the valve body (1), and a plurality of first flow passage openings (13) and a plurality of second flow passage openings (14) are formed in the valve body (1);

the valve core (2) is rotatably arranged in the mounting cavity (11), along the axial direction of the valve core (2), the valve core (2) comprises a first core section (21) and a second core section (22), a plurality of first channels (211) which are not communicated with each other are arranged on the first core section (21), each first channel (211) is communicated with at least two first channel ports (13), a plurality of second channels (221) which are not communicated with each other are arranged on the second core section (22), each second channel (221) is communicated with at least two second channel ports (14),

one side of second core section (22) deviates from first core section (21) is equipped with second axis of rotation (222), second axis of rotation (222) stretch out installation cavity (11), first core section (21) orientation one side of second core section (22) is equipped with first axis of rotation (212), first axis of rotation (212) rotationally wears to locate second core section (22) with in second axis of rotation (222).

2. The multi-way valve according to claim 1, wherein an end of the first rotational axis (212) remote from the first core segment (21) passes out of the second rotational axis (222).

3. The multi-way valve of claim 1, further comprising:

the third rotating shaft (3), the third rotating shaft (3) is located outside the installation cavity (11), and rotationally locates on the axial terminal surface that is away from of valve body (1) first core section (21), third rotating shaft (3) with second rotating shaft (222) transmission is connected just the axis of third rotating shaft (3) with the axis interval setting of first rotating shaft (212).

4. A multiport valve according to claim 3, wherein the axis of the third rotation shaft (3) is parallel to the axis of the second rotation shaft (222), the second rotation shaft (222) is externally provided with a first gear (223), the third rotation shaft (3) is externally provided with a second gear (31), and the first gear (223) and the second gear (31) are meshed.

5. The multiway valve according to claim 4, wherein the transmission ratio of the first gear (223) and the second gear (31) is 1:1.

6. the multi-way valve according to claim 4, characterized in that the first gear (223) and the second rotation shaft (222) are one piece;

and/or the second gear (31) and the third rotating shaft (3) are split pieces.

7. The multi-way valve according to claim 1, characterized in that the first rotation shaft (212) and the first core segment (21) are one piece;

and/or the second rotation shaft (222) and the second core section (22) are a single piece.

8. The multi-way valve according to claim 1, wherein a plurality of runner cavities (12) are further arranged in the valve body (1), the runner cavities (12) are located on the radial outer side of the installation cavity (11) and are distributed at intervals along the circumferential direction of the installation cavity (11), the first runner ports (13) and the second runner ports (14) are arranged on the axial end face of the valve body (1) which is far away from the first rotating shaft (212) and penetrates out, the second runner ports (14) are respectively communicated with the runner cavities (12), a plurality of third runner ports (15) which are respectively communicated with the runner cavities (12) are formed in the inner wall of the installation cavity (11), and each second channel (221) is communicated with at least two third runner ports (15).

9. The multiway valve according to claim 8, wherein a plurality of said third flow openings (15) are provided on the peripheral wall of said mounting chamber (11) and are arranged at intervals in the circumferential direction of said mounting chamber (11), and both end openings of each of said second passages (221) are located on the peripheral wall of said second core section (22).

10. The multi-way valve according to claim 8, characterized in that the opening of the second channel (221) is located on the axial end face of the second core segment (22) facing away from the first core segment (21), the axial end of the valve body (1) facing away from the first core segment (21) is provided with a plurality of communication channels (18), one ends of the communication channels (18) are respectively communicated with a plurality of runner cavities (12), and the other ends of the communication channels (18) are provided with third runner ports (15) communicated with the mounting cavity (11).