CN116146751A

CN116146751A - Control valve

Info

Publication number: CN116146751A
Application number: CN202110566545.9A
Authority: CN
Inventors: 周小伟; 沙海建; 王傅钢; 王俊杰
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2023-05-23

Abstract

The invention provides a control valve. The control valve includes: the valve seat is provided with a first valve cavity, a second valve cavity, a communication port, a plurality of first valve ports and a plurality of second valve ports, wherein the first valve cavity is communicated with the plurality of first valve ports, the second valve cavity is communicated with the plurality of second valve ports, and the first valve cavity is communicated with the second valve cavity through the communication port; the first valve core is movably arranged in the first valve cavity, the first valve core comprises a plurality of channels, two ends of at least one channel are respectively communicated with two first valve ports, and at least one first valve port is communicated with the communication port through the channels; the second valve core is movably arranged in the second valve cavity and comprises a communication part, and the communication part is used for controlling the communication quantity of the second valve port and the communication port. The invention effectively solves the problem that the control valve in the prior art is complex in controlling a plurality of flow paths.

Description

Control valve

Technical Field

The invention relates to the technical field of fluid control, in particular to a control valve.

Background

Conventionally, in the field of fluid control technology, a plurality of control valves are generally used to control a plurality of flow paths for a device to be controlled having a plurality of flow paths, and each control valve controls the flow path corresponding to the control valve to be in a flow state or a flow-off state.

However, the above arrangement not only increases the difficulty of controlling the control valve by the fluid system, but also increases the overall cost of the fluid system.

Disclosure of Invention

The invention mainly aims to provide a control valve to solve the problem that the control valve in the prior art is complex in controlling a plurality of flow paths.

In order to achieve the above object, the present invention provides a control valve comprising: the valve seat is provided with a first valve cavity, a second valve cavity, a communication port, a plurality of first valve ports and a plurality of second valve ports, wherein the first valve cavity is communicated with the plurality of first valve ports, the second valve cavity is communicated with the plurality of second valve ports, and the first valve cavity is communicated with the second valve cavity through the communication port; the first valve core is movably arranged in the first valve cavity, the first valve core comprises a plurality of channels, two ends of at least one channel are respectively communicated with two first valve ports, and at least one first valve port is communicated with the communication port through the channels; the second valve core is movably arranged in the second valve cavity and comprises a communication part, and the communication part is used for controlling the communication quantity of the second valve port and the communication port.

By applying the technical scheme of the invention, the valve seat is provided with the first valve cavity and the second valve cavity, and the first valve cavity is communicated with the second valve cavity through the communication port. The control valve comprises a first valve core and a second valve core, wherein the first valve core is movably arranged in the first valve cavity and used for controlling the on-off of a plurality of first valve ports and a plurality of second valve ports. The second valve core is movably arranged in the second valve cavity and used for controlling the communication quantity of the second valve port and the communication ports so as to control a plurality of flow paths. Meanwhile, the communication part can also be used for adjusting the flow entering each second valve port.

Like this, compare with need using a plurality of control valves to control a plurality of flow paths among the prior art, the control valve in this application can control a plurality of flow paths simultaneously to reduce the use quantity of control valve, and then solved the control valve in the prior art and comparatively complicated problem of control to a plurality of flow paths, reduced the control degree of difficulty of fluid system and reduced the manufacturing cost of system.

Further, the control valve further includes: the first driving device is in driving connection with the first valve core to drive the first valve core to rotate around the central axis of the first valve core, and a plurality of first valve ports are arranged at intervals around the central axis of the first valve core; and/or the second driving device is in driving connection with the second valve core to drive the second valve core to rotate around the central axis of the second valve core, and a plurality of second valve ports are arranged at intervals around the central axis of the second valve core. The first driving device is in driving connection with the first valve core to drive the first valve core to rotate, and then the first valve ports and the second valve ports are controlled to be communicated with each other, so that intelligent control of the control valve is realized.

Further, the central axis of the first valve port and the central axis of the second valve port are arranged in parallel. The arrangement enables the first valve core and the second valve core to be arranged at intervals along the length direction or the width direction of the control valve, so that the overall height and thickness of the control valve are reduced.

Further, the valve seat includes: a valve seat body having a plurality of first flow holes and a plurality of second flow holes; the coaming is arranged on the valve seat body and is positioned at the inner sides of the first flow holes and the second flow holes, the first valve ports and the second valve ports are all arranged on the coaming, the first flow holes and the first valve ports are arranged in one-to-one correspondence, and the second flow holes and the second valve ports are arranged in one-to-one correspondence. The first valve ports and the second valve ports are arranged on the coaming, and the first flow holes and the second flow holes are arranged on the valve seat body, so that on one hand, the first valve ports are convenient to communicate through channels, the first valve ports are convenient to communicate with the second valve ports through the communication ports, and the control reliability of the control valve is improved; on the other hand, the valve seat has simpler structure, is easy to process and realize, and reduces the processing cost of the valve seat.

Further, the coaming includes: the first enclosing plate section is an arc-shaped plate section, and the first valve port is arranged on the side wall of the arc-shaped plate section; the first transition plate section and the second transition plate section are oppositely arranged, two sides of the arc-shaped plate section are respectively connected with the first transition plate section and the second transition plate section, and a communication port is formed between the first transition plate section and the second transition plate section; the second encloses and establishes the board section, and the board section is enclosed to the second and establishes the board section and enclose and form the second valve pocket. The structure of the coaming is simpler, the coaming is easy to process and realize, and the processing cost of the coaming is reduced.

Further, the first flow hole is a sector hole. The arrangement increases the area of the first flow hole on one hand and improves the flow efficiency of the control valve; on the other hand, the structure of the first flow hole is simpler, the processing and the realization are easy, and the processing cost of the control valve is reduced.

Further, the control valve further includes: the first sealing structure is arranged between the first surrounding plate section and the first valve core and is provided with a plurality of first through holes, and the first through holes and the first valve ports are arranged in one-to-one correspondence. The first sealing structure is used for sealing between the first surrounding plate section and the first valve core so as to prevent fluid from leaking out of the first valve port. Optionally, the first sealing structure is arc-shaped, and the first sealing structure further has an opening, and the opening is opposite to the communication port.

Further, the control valve further includes: the second sealing structure is arranged between the second surrounding plate section and the second valve core; the second sealing structure is provided with a second through hole, and the communication part is communicated with the second valve port through the second through hole. The second sealing structure is used for sealing between the second surrounding plate section and the second valve core so as to prevent fluid from leaking out of the second valve port. Optionally, the second sealing structure is annular.

Further, the plurality of passages includes a first passage, and the first spool further includes: a first plate body; the second plate body is arranged opposite to the first plate body; the third plate body is arranged between the first plate body and the second plate body and is connected with the first plate body and the second plate body, and the third plate body, part of the first plate body and part of the second plate body surround to form a first channel. An installation space is formed between the first plate body and the second plate body, and the third plate body is arranged in the installation space, so that the third plate body, part of the first plate body and part of the second plate body surround to form a first channel. The two ends of the first channel can be respectively communicated with the two first valve ports, and can also be respectively communicated with the first valve ports and the communication ports.

Further, the first plate body and the second plate body are circular plates, and the third plate body comprises: a fourth plate section extending in a radial direction of the circular plate; a fifth plate segment; the sixth plate section extends along the radial direction of the circular plate and is arranged at a first included angle A with the fourth plate section; and two ends of the fifth plate section are respectively connected with the fourth plate section and the sixth plate section. The arrangement ensures that the third plate body can surround the first channel, so that the structure of the third plate body is simpler, the processing and realization are easy, and the processing cost of the third plate body is reduced.

Further, the plurality of passages further includes a second passage, and the first spool further includes: the fourth plate body is arranged between the first plate body and the second plate body and is connected with the first plate body and the second plate body, and the fourth plate body and the fifth plate section are arranged at intervals; and a second channel is formed among the fourth plate body, part of the first plate body, part of the second plate body and the third plate body in a surrounding mode. The fourth plate body is arranged in the installation space, so that a second channel is formed among the fourth plate body, part of the first plate body, part of the second plate body and the third plate body in a surrounding mode. The two ends of the second channel can be respectively communicated with the two first valve ports, and also can be respectively communicated with the first valve ports and the communication ports.

Further, the fourth plate body and the fifth plate section are arranged in parallel; and/or the fourth plate body passes through the central axis of the second plate body. The arrangement makes the arrangement of the fourth plate body more flexible so as to meet different use requirements and working conditions.

Further, the plurality of passages further includes a third passage, and the first spool further includes: the fifth plate body is arranged between the first plate body and the second plate body and is connected with the first plate body and the second plate body, one end of the fifth plate body is connected with the fourth plate body and is arranged at a second included angle B with the fourth plate body; the sixth plate body is arranged between the first plate body and the second plate body and is connected with the first plate body and the second plate body, the sixth plate body extends along the radial direction of the circular plate and is connected with the other end of the fifth plate body, and a third included angle C is formed between the sixth plate body and the fourth plate body; and a third channel is formed between part of the fourth plate body, the fifth plate body, at least part of the sixth plate body, part of the first plate body and part of the second plate body in a surrounding mode. The fifth plate body and the sixth plate body are arranged in the installation space, so that a third channel is formed between part of the fourth plate body, the fifth plate body, at least part of the sixth plate body, part of the first plate body and part of the second plate body in a surrounding mode. The two ends of the third channel can be respectively communicated with the two first valve ports, and also can be respectively communicated with the first valve ports and the communication ports.

Further, the plurality of passages further includes a fourth passage, and the first spool further includes: the seventh plate body is arranged between the first plate body and the second plate body and is connected with the first plate body and the second plate body, two ends of the seventh plate body are respectively connected with the fourth plate body and the sixth plate body, and a fourth included angle D is formed between the seventh plate body and the fourth plate body; and a fourth channel is formed between part of the fourth plate body, the seventh plate body, at least part of the sixth plate body, part of the first plate body and part of the second plate body in a surrounding manner. The seventh plate body is arranged in the installation space, so that a fourth channel is formed between part of the fourth plate body, the seventh plate body, at least part of the sixth plate body, part of the first plate body and part of the second plate body in a surrounding manner. The two ends of the fourth channel can be respectively communicated with the two first valve ports, and also can be respectively communicated with the first valve ports and the communication ports.

Further, a first distance L is arranged between the fifth plate section and the central axis of the circular plate ₁ A second distance L is arranged between the central axes of the fifth plate body and the circular plate ₂ A third distance L is arranged between the seventh plate body and the central axis of the circular plate ₃ The method comprises the steps of carrying out a first treatment on the surface of the Wherein L is ₁ ＝L ₂ ＝L ₃ . The arrangement ensures that the flow rates of the first channel, the second channel, the third channel and the fourth channel are consistent, so as to ensure that the fluid discharged from the first flow hole and the second flow hole is consistent and uniform.

Further, the plurality of passages further includes a fifth passage and a sixth passage, and the first spool further includes: the eighth plate body is arranged between the first plate body and the second plate body and is connected with the first plate body and the second plate body, the eighth plate body, part of the first plate body and part of the second plate body surround to form a fifth channel, and the eighth plate body, the fourth plate body, part of the first plate body and part of the second plate body surround to form a sixth channel. The eighth plate body is arranged in the installation space, so that the eighth plate body, part of the first plate body and part of the second plate body surround to form a fifth channel, and the eighth plate body, the fourth plate body, part of the first plate body and part of the second plate body surround to form a sixth channel. The two ends of the fifth channel can be respectively communicated with the two first valve ports, and also can be respectively communicated with the first valve ports and the communication ports. The two ends of the sixth channel can be respectively communicated with the two first valve ports, and also can be respectively communicated with the first valve ports and the communication ports.

Further, the first plate body and the second plate body are circular plates, and the eighth plate body comprises: a seventh plate section extending in a radial direction of the circular plate; an eighth plate segment; and the ninth plate section extends along the radial direction of the circular plate and is arranged at a fifth included angle E with the seventh plate section, and two ends of the eighth plate section are respectively connected with the seventh plate section and the ninth plate section. The arrangement ensures that the eighth plate body can surround the fifth channel and the sixth channel, so that the structure of the eighth plate body is simpler, the processing and realization are easy, and the processing cost of the eighth plate body is reduced.

Further, the second valve core is one; or the plurality of second valve cores are provided, the plurality of communication ports are provided, and the plurality of second valve cores are arranged in one-to-one correspondence with the plurality of communication ports. The arrangement ensures that the second valve core is more flexible to meet different use requirements and working conditions, and improves the universality of the control valve; and/or the first valve core is one; or, the plurality of first valve cores are communicated through the communication part.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic perspective view of a first embodiment of a control valve according to the invention;

FIG. 2 illustrates a bottom view of the control valve of FIG. 1;

FIG. 3 shows an exploded view of the control valve of FIG. 1;

FIG. 4 shows a schematic perspective view of a first spool of the control valve of FIG. 3;

FIG. 5 shows a F-F cross-sectional view of the first valve spool of FIG. 4;

FIG. 6 shows a top view of the first valve spool of FIG. 5;

FIG. 7 is a schematic perspective view showing the assembled first valve element and first seal structure of the control valve of FIG. 3;

FIG. 8 shows a G-G cutaway view of the first valve spool and first seal arrangement of FIG. 7 assembled;

fig. 9 is a schematic perspective view showing the first sealing structure in fig. 7;

FIG. 10 is a schematic perspective view showing the second valve element and the second seal structure of the control valve of FIG. 3 assembled;

FIG. 11 is a schematic perspective view showing a second spool of the control valve of FIG. 3;

FIG. 12 shows a schematic perspective view of a valve seat of the control valve of FIG. 3;

FIG. 13 is a schematic perspective view showing a valve seat body of the valve seat of FIG. 12;

FIG. 14 shows a partial cross-sectional view of the valve seat of FIG. 12;

FIG. 15 shows a schematic perspective view of the control valve of FIG. 3 in a first mode of operation;

FIG. 16 illustrates a bottom view of the control valve of FIG. 15 in a first mode of operation;

FIG. 17 shows a schematic perspective view of the control valve of FIG. 3 in a second mode of operation;

FIG. 18 illustrates a bottom view of the control valve of FIG. 17 in a second mode of operation;

FIG. 19 shows a schematic perspective view of the control valve of FIG. 3 in a third mode of operation;

FIG. 20 illustrates a bottom view of the control valve of FIG. 19 in a third mode of operation;

FIG. 21 shows a schematic perspective view of the control valve of FIG. 3 in a fourth mode of operation;

FIG. 22 illustrates a bottom view of the control valve of FIG. 21 in a fourth mode of operation;

FIG. 23 shows a schematic perspective view of the control valve of FIG. 3 in a fifth mode of operation;

FIG. 24 illustrates a bottom view of the control valve of FIG. 23 in a fifth mode of operation;

FIG. 25 shows a schematic perspective view of the control valve of FIG. 3 in a sixth mode of operation;

FIG. 26 illustrates a bottom view of the control valve of FIG. 25 in a sixth mode of operation;

FIG. 27 shows a schematic perspective view of the control valve of FIG. 3 in a seventh mode of operation;

FIG. 28 illustrates a bottom view of the control valve of FIG. 27 in a seventh mode of operation;

FIG. 29 shows a schematic perspective view of the control valve of FIG. 3 in an eighth mode of operation;

FIG. 30 illustrates a bottom view of the control valve of FIG. 29 in an eighth mode of operation;

FIG. 31 shows a cross-sectional view of a first spool of a second embodiment of a control valve according to the present invention;

fig. 32 is a schematic perspective view showing a first spool of a third embodiment of a control valve according to the present invention; and

Fig. 33 shows a top view of the first spool of fig. 32.

Wherein the above figures include the following reference numerals:

10. a valve seat; 11. a first valve chamber; 12. a first valve port; 13. a second valve port; 14. a valve seat body; 141. a first flow hole; 1411. a first sub-via; 1412. a second sub-via; 1413. a third sub-via; 1414. a fourth sub-via; 1415. a fifth sub-via; 1416. a sixth sub-via; 1417. a seventh sub-via; 1418. an eighth sub-via; 1419. a ninth sub-via; 142. a second flow hole; 15. coaming plate; 151. a first enclosing plate section; 152. a first transition plate segment; 153. a second transition plate segment; 154. a first plate segment; 155. a second plate segment; 156. a third plate segment; 16. a communication port; 17. a second valve chamber; 20. a first valve core; 21. a channel; 211. a first channel; 2111. a first sub-channel; 2112. a second sub-channel; 212. a second channel; 2121. a third sub-channel; 2122. a fourth sub-channel; 213. a third channel; 2131. a fifth sub-channel; 2132. a sixth sub-channel; 214. a fourth channel; 2141. a seventh sub-channel; 2142. an eighth sub-channel; 215. a fifth channel; 216. a sixth channel; 22. a first plate body; 23. a second plate body; 24. a third plate body; 241. a fourth plate segment; 242. a fifth plate segment; 243. a sixth plate segment; 25. a fourth plate body; 26. a fifth plate body; 27. a sixth plate body; 28. a seventh plate body; 29. an eighth plate body; 291. a seventh plate segment; 292. an eighth plate segment; 293. a ninth plate segment; 30. a second valve core; 31. a communication section; 32. a tenth sub-channel; 40. a valve cover; 50. a first sealing structure; 51. a first through hole; 60. a second sealing structure; 61. a second through hole; 62. a ninth sub-channel; 63. an eleventh sub-channel; 70. a ninth plate body; 71. a tenth plate segment; 72. an eleventh plate segment; 73. a twelfth plate segment; 74. a seventh channel; 75. and an eighth channel.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.

In order to solve the problem that the control valve is complex in control of a plurality of flow paths in the prior art, the application provides a control valve.

Example 1

As shown in fig. 1 to 30, the control valve includes a valve seat 10, a first valve element 20, and a second valve element 30. The valve seat 10 has a first valve cavity 11, a second valve cavity 17, a communication port 16, a plurality of first valve ports 12 and a plurality of second valve ports 13, the first valve cavity 11 is communicated with the plurality of first valve ports 12, the second valve cavity 17 is communicated with the plurality of second valve ports 13, and the first valve cavity 11 is communicated with the second valve cavity 17 through the communication port 16. The first valve element 20 is movably disposed in the first valve chamber 11, the first valve element 20 includes a plurality of passages 21, two ends of at least one passage 21 are respectively communicated with two first valve ports 12, and at least one first valve port 12 is communicated with the communication port 16 through the passage 21. The second valve spool 30 is movably disposed in the second valve chamber 17, and the second valve spool 30 includes a communication portion 31, and the communication portion 31 is used for controlling the communication quantity of the second valve port 13 and the communication port 16.

With the technical solution of the present embodiment, the valve seat 10 has a first valve cavity 11 and a second valve cavity 17, and the first valve cavity 11 and the second valve cavity 17 are communicated through a communication port 16. The control valve includes a first spool 20 and a second spool 30, the first spool 20 being movably disposed in the first valve chamber 11 for controlling on/off between the plurality of first valve ports 12, between the first valve ports 12 and the second valve ports 13. The second valve spool 30 is movably disposed in the second valve chamber 17 for controlling the number of the

communication ports

13 and 16, and thus controlling the plurality of flow paths. At the same time, the communication portion 31 may also be used to regulate the flow rate into each of the second valve ports 13.

Therefore, compared with the prior art that a plurality of control valves are required to control a plurality of flow paths, the control valve in the embodiment can control a plurality of flow paths simultaneously, so that the number of the control valves is reduced, the problem that the control valve is complex in control of a plurality of flow paths in the prior art is solved, the control difficulty of a fluid system is reduced, and the manufacturing cost of the system is reduced.

In this embodiment, the control valve further comprises a first driving means. The first driving device is in driving connection with the first valve core 20 to drive the first valve core 20 to rotate around the central axis thereof, and the plurality of first valve ports 12 are arranged at intervals around the central axis of the first valve core 20. Thus, the first driving device is in driving connection with the first valve core 20 to drive the first valve core 20 to rotate, so as to control the mutual communication between the plurality of first valve ports 12 and between the first valve ports 12 and the second valve ports 13, thereby realizing the intelligent control of the control valve.

In this embodiment, the control valve further comprises a second driving means. The second driving device is in driving connection with the second valve core 30 to drive the second valve core 30 to rotate around the central axis of the second valve core 30, and a plurality of second valve ports 13 are arranged at intervals around the central axis of the second valve core 30. In this way, the second driving device is in driving connection with the second valve core 30 to drive the second valve core 30 to rotate, so as to control the mutual communication between the plurality of second valve ports 13 and between the first valve port 12 and the second valve port 13, thereby realizing the intelligent control of the control valve.

It should be noted that the number of driving devices included in the control valve is not limited thereto, and may be adjusted according to the working condition and the use requirement. In other embodiments not shown in the drawings, the control valve comprises a first driving device and a transmission assembly, the transmission assembly is connected with the driving end of the first driving device, and the transmission assembly is connected with both the first valve core 20 and the second valve core 30 to drive the first valve core 20 and the second valve core 30 to synchronously move so as to control the on-off among the plurality of first valve ports 12, the first valve ports 12 and the second valve ports 13 and the plurality of second valve ports 13.

In other embodiments not shown in the drawings, the control valve comprises a second driving device and a transmission assembly, the transmission assembly is connected with the driving end of the second driving device, and the transmission assembly is connected with both the first valve core 20 and the second valve core 30 to drive the second valve core 30 and the first valve core 20 to synchronously move, so as to control the on-off among the plurality of first valve ports 12, the first valve ports 12 and the second valve ports 13 and the plurality of second valve ports 13.

Specifically, during the process of the driving device driving the first valve core 20 to rotate, the channel 21 can communicate with the plurality of first valve ports 12 and the second valve ports 13, so as to control the plurality of flow paths.

In the present embodiment, the center axis of the first valve port 12 and the center axis of the second valve port 13 are disposed parallel to each other. In this way, the above arrangement allows the first spool 20 and the second spool 30 to be disposed at intervals in the length direction or the width direction of the control valve to reduce the overall height and thickness of the control valve.

In the present embodiment, the second valve element 30 can control the flow direction of the fluid flowing into the second valve element 30 from the first valve element 20 and the flow rate ratio in each flow direction.

In the present embodiment, the bottom surface of the valve seat 10 is connected to a mounting member (not shown), specifically, the bottom surface of the valve seat 10 may be connected to the mounting member by soft sealing, or may be connected by laser welding or ultrasonic welding.

Optionally, the second valve element 30 is one; alternatively, the number of the second valve elements 30 is plural, the number of the communication ports 16 is plural, and the plurality of the second valve elements 30 are provided in one-to-one correspondence with the plurality of the communication ports 16. Like this, above-mentioned setting makes the setting of second case 30 more nimble to satisfy different user demands and operating mode, promoted the commonality of control valve.

In the present embodiment, the communication ports 16 are one, the second valve spool 30 is one, and the second valve spool 30 is a three-way valve spool.

As shown in fig. 12 and 14, the valve seat 10 includes a valve seat body 14 and a shroud 15. Wherein the valve seat body 14 has a plurality of first flow holes 141 and a plurality of second flow holes 142. The shroud 15 is disposed on the valve seat body 14 and is located inside the plurality of first flow holes 141 and the plurality of second flow holes 142, the first valve ports 12 and the second valve ports 13 are disposed on the shroud 15, the plurality of first flow holes 141 are disposed in one-to-one correspondence with the plurality of first valve ports 12, and the plurality of second flow holes 142 are disposed in one-to-one correspondence with the plurality of second valve ports 13. Thus, the first valve port 12 and the second valve port 13 are both arranged on the coaming 15, and the first flow hole 141 and the second flow hole 142 are both arranged on the valve seat body 14, so that on one hand, the first valve ports 12 are convenient to communicate through the channels 21, the first valve ports 12 are convenient to communicate with the second valve port 13 through the communication ports 16, and the control reliability of the control valve is improved; on the other hand, the valve seat 10 has simpler structure, is easy to process and realize, and reduces the processing cost of the valve seat 10.

Specifically, the plurality of first through-holes 141 includes a first sub-through hole 1411, a second sub-through hole 1412, a third sub-through hole 1413, a fourth sub-through hole 1414, a sixth sub-through hole 1416, a seventh sub-through hole 1417, and an eighth sub-through hole 1418. The plurality of second through-holes 142 includes a fifth sub-through hole 1415 and a ninth sub-through hole 1419. The number of the first valve ports 12 is seven, and the seven first valve ports 12 are respectively arranged in one-to-one correspondence with the first sub-through hole 1411, the second sub-through hole 1412, the third sub-through hole 1413, the fourth sub-through hole 1414, the sixth sub-through hole 1416, the seventh sub-through hole 1417 and the eighth sub-through hole 1418. The number of the second valve ports 13 is two, and the two second valve ports 13 are respectively arranged corresponding to the fifth sub through hole 1415 and the ninth sub through hole 1419. Among them, the second spool 30 has a first communication state in which the fifth sub-through hole 1415 and the ninth sub-through hole 1419 communicate, a second communication state in which the fifth sub-through hole 1415 communicates with the communication port 16, and a third communication state in which the ninth sub-through hole 1419 communicates with the communication port 16.

As shown in fig. 12, the coaming 15 includes a first enclosing plate section 151, first and second

transition plate sections

152 and 153 disposed opposite to each other, and a second enclosing plate section. Wherein, the first enclosing plate segment 151 is an arc plate segment, and the first valve port 12 is disposed on a sidewall of the arc plate segment. Both sides of the arc plate section are respectively connected with a first transition plate section 152 and a second transition plate section 153, and a communication port 16 is formed between the first transition plate section 152 and the second transition plate section 153. The second surrounding plate section surrounds the second valve chamber 17. Like this, above-mentioned setting makes the structure of bounding wall 15 simpler, easy processing, realization have reduced the processing cost of bounding wall 15.

In this embodiment, the shroud 15 is an integrally formed structure.

As shown in fig. 12, the second surrounding plate section includes a first plate section 154, a second plate section 155, and a third plate section 156. One side of the first plate section 154 is connected to the first transition plate section 152. One side of the third plate section 156 is connected to the second transition plate section 153 and is disposed opposite the first plate section 154. The second plate section 155 is connected on both sides to the first plate section 154 and the third plate section 156, respectively. Wherein the second valve port 13 is disposed on the first plate segment 154 and/or the third plate segment 156. Like this, above-mentioned setting makes the second enclose and establishes the structure of board section simpler, easy processing, realization, has reduced the second and has enclosed the processing cost of establishing the board section.

In the present embodiment, the second valve ports 13 are two and are respectively provided on the first plate section 154 and the third plate section 156, and the second plate section 155 is provided opposite to the communication port 16. The first transition plate section 152 and the second transition plate section 153 are disposed opposite to each other and are horn-shaped.

In the present embodiment, the first flow holes 141 are sector holes. Thus, the above arrangement increases the area of the first flow hole 141 on the one hand, and improves the flow efficiency of the control valve; on the other hand, the structure of the first flow hole 141 is simpler, the processing and implementation are easy, and the processing cost of the control valve is reduced.

As shown in fig. 3, 7-9, the control valve further includes a first sealing structure 50. The first sealing structure 50 is disposed between the first surrounding plate segment 151 and the first valve core 20, and the first sealing structure 50 has a plurality of first through holes 51, where the plurality of first through holes 51 are disposed in one-to-one correspondence with the plurality of first valve ports 12. Thus, the first sealing structure 50 is configured to seal between the first surrounding plate segment 151 and the first valve spool 20 to prevent leakage of fluid out of the first valve port 12. Optionally, the first sealing structure 50 has an arc shape, and the first sealing structure 50 further has an opening, and the opening is disposed opposite to the communication port 16.

In the present embodiment, the number of the first through holes 51 is seven, the seven first through holes 51 are arranged in one-to-one correspondence with the seven first valve ports 12, and the seven first through holes 51 are arranged at intervals around the central axis of the first sealing structure 50.

Optionally, the control valve further comprises a second sealing structure 60. The second sealing structure 60 is disposed between the second surrounding plate segment and the second valve spool 30. Wherein the second sealing structure 60 has a second through hole 61, and the communication portion 31 communicates with the second valve port 13 through the second through hole 61. Thus, the second sealing structure 60 is configured to seal between the second surrounding plate segment and the second valve core 30 to prevent leakage of fluid out of the second valve port 13. Optionally, the second sealing structure 60 is annular.

In the present embodiment, there are two second sealing structures 60, and the two second sealing structures 60 are disposed in one-to-one correspondence with the two second valve ports 13. Thus, when the second valve element 30 is in the first flow state, fluid can enter the communication portion 31 through the communication port 16, and flow into the two second valve ports 13 through the two second through holes 61, respectively; when the second valve element 30 is in the second communication state, fluid can enter the communication portion 31 through the communication port 16 and flow into one of the second valve ports 13 through one of the second through holes 61 corresponding to the fifth sub through hole 1415; when the second valve element 30 is in the third flow state, fluid may enter the communication portion 31 through the communication port 16, and then flow into one of the second valve ports 13 through one of the second through holes 61 corresponding to the ninth through holes 1419.

As shown in fig. 4 to 6, the plurality of passages 21 includes a first passage 211, and the first valve core 20 further includes a first plate 22, a second plate 23, and a third plate 24. Wherein the second plate 23 is disposed opposite to the first plate 22. The third plate 24 is disposed between the first plate 22 and the second plate 23 and connected to both the first plate 22 and the second plate 23, and the third plate 24, a portion of the first plate 22, and a portion of the second plate 23 surround the first channel 211. In this way, an installation space is formed between the first plate 22 and the second plate 23, and the third plate 24 is disposed in the installation space, so that the third plate 24, a part of the first plate 22, and a part of the second plate 23 surround and form the first channel 211. Both ends of the first passage 211 may communicate with the two first valve ports 12, respectively, or may communicate with the first valve ports 12 and the communication port 16, respectively.

As shown in fig. 8, 15, 17, 19, 21, 23, 25, 27, and 29, the first channel 211 includes a first sub-channel 2111 and a second sub-channel 2112, the second channel 212 includes a third sub-channel 2121 and a fourth sub-channel 2122, the third channel 213 includes a fifth sub-channel 2131 and a sixth sub-channel 2132, and the fourth channel 214 includes a seventh sub-channel 2141 and an eighth sub-channel 2142.

As shown in fig. 4 to 6, the first plate 22 and the second plate 23 are circular plates, and the third plate 24 includes a fourth plate segment 241, a fifth plate segment 242, and a sixth plate segment 243. Wherein the fourth plate segment 241 extends in the radial direction of the circular plate. The sixth plate segment 243 extends along the radial direction of the circular plate and forms a first included angle a with the fourth plate segment 241. Both ends of the fifth plate segment 242 are connected to the fourth plate segment 241 and the sixth plate segment 243, respectively. In this way, the above arrangement ensures that the third plate 24 can surround the first channel 211, so that the structure of the third plate 24 is simpler, easy to process and implement, and the processing cost of the third plate 24 is reduced.

Optionally, the first included angle a satisfies:

wherein the number of channels 21 is n. In this embodiment, n is four, and the first included angle a is 90 °.

As shown in fig. 4 to 6, the plurality of passages 21 further includes a second passage 212, and the first spool 20 further includes a fourth plate 25. The fourth plate 25 is disposed between the first plate 22 and the second plate 23 and is connected to both the first plate 22 and the second plate 23, and the fourth plate 25 is disposed at intervals to the fifth plate 242. The fourth plate 25, a portion of the first plate 22, a portion of the second plate 23, and the third plate 24 form a second channel 212 therebetween. In this way, the fourth plate 25 is disposed in the installation space such that the second channel 212 is formed around the fourth plate 25, part of the first plate 22, part of the second plate 23, and the third plate 24. The second passage 212 may be connected to the two first ports 12 at both ends thereof, and may be connected to the first ports 12 and the communication port 16 at both ends thereof.

Optionally, the fourth plate 25 and the fifth plate segment 242 are arranged parallel to each other; and/or the fourth plate 25 passes through the central axis of the second plate 23. Thus, the arrangement of the fourth plate 25 is more flexible to meet different use requirements and working conditions.

In the present embodiment, the fourth plate body 25 and the fifth plate segment 242 are disposed parallel to each other.

As shown in fig. 4 to 6, the plurality of passages 21 further includes a third passage 213, and the first spool 20 further includes a fifth plate 26 and a sixth plate 27. The fifth plate 26 is disposed between the first plate 22 and the second plate 23 and connected to both the first plate 22 and the second plate 23, and one end of the fifth plate 26 is connected to the fourth plate 25 and disposed at a second included angle B with the fourth plate 25. The sixth plate 27 is disposed between the first plate 22 and the second plate 23 and connected to both the first plate 22 and the second plate 23, the sixth plate 27 extends along the radial direction of the circular plate and is connected to the other end of the fifth plate 26, and a third included angle C is formed between the sixth plate 27 and the fourth plate 25. Wherein, a third channel 213 is formed between a part of the fourth plate 25, the fifth plate 26, at least a part of the sixth plate 27, a part of the first plate 22 and a part of the second plate 23. In this way, the fifth plate 26 and the sixth plate 27 are disposed in the installation space, so that a third channel 213 is formed between a portion of the fourth plate 25, the fifth plate 26, at least a portion of the sixth plate 27, a portion of the first plate 22, and a portion of the second plate 23. Both ends of the third passage 213 may communicate with the two first valve ports 12, respectively, or may communicate with the first valve ports 12 and the communication port 16, respectively.

Optionally, the second included angle B satisfies:

the third included angle C satisfies: />

The number of channels 21 is n. In this embodiment, the second angle B is 45 ° and the third angle C is 90 °.

As shown in fig. 4 to 6, the plurality of passages 21 further includes a fourth passage 214, and the first spool 20 further includes a seventh plate 28. The seventh plate 28 is disposed between the first plate 22 and the second plate 23 and connected to both the first plate 22 and the second plate 23, two ends of the seventh plate 28 are connected to the fourth plate 25 and the sixth plate 27, and a fourth included angle D is formed between the seventh plate 28 and the fourth plate 25. Wherein a fourth channel 214 is formed between a portion of the fourth plate 25, the seventh plate 28, at least a portion of the sixth plate 27, a portion of the first plate 22, and a portion of the second plate 23. In this way, the seventh plate 28 is disposed in the installation space such that the fourth channel 214 is formed around a portion of the fourth plate 25, the seventh plate 28, at least a portion of the sixth plate 27, a portion of the first plate 22, and a portion of the second plate 23. Both ends of the fourth passage 214 may be respectively communicated with the two first valve ports 12, or may be respectively communicated with the first valve ports 12 and the communication port 16.

Optionally, the fourth included angle D satisfies:

the number of channels 21 is n. In this embodiment, the fourth included angle D is 90 °.

As shown in fig. 6, the fifth plate segment 242 has a first distance L from the center axis of the circular plate ₁ The fifth plate 26 has a second distance L from the central axis of the circular plate ₂ The seventh plate 28 has a third distance L from the central axis of the circular plate ₃ . Wherein L is ₁ ＝L ₂ ＝L ₃ . In this way, the above arrangement makes the flow rates of the first passage 211, the second passage 212, the third passage 213, and the fourth passage 214 uniform to ensure uniform and uniform discharge of the fluid from the first and second flow holes 141 and 142.

Alternatively, the number of first ports 12 is 2n-1 and the number of passages 21 is n. In this embodiment, the number of passages 21 is four, and the number of first ports 12 is seven.

Specifically, the first spool 20 rotates with a gradient of 45 ° to achieve 8 flow patterns at the first flow hole 141. The second spool 30 rotates to achieve 3 flow patterns at the second flow orifice 142, and the control valve can achieve 24 flow patterns in total. The second spool 30 cooperates with two second sealing structures 60 to form a tenth sub-passage 32, a ninth sub-passage 62, and an eleventh sub-passage 63. Wherein, when the second spool 30 is in the first communication state, the tenth sub-passage 32, the ninth sub-passage 62, and the eleventh sub-passage 63 are communicated with each other; when the second spool 30 is in the second communication state, the eleventh sub-passage 63 is in communication with the tenth sub-passage 32, and the tenth sub-passage 32 is out of communication with the ninth sub-passage 62; when the second spool 30 is in the third communication state, the eleventh sub-passage 63 is disconnected from the tenth sub-passage 32, and the tenth sub-passage 32 communicates with the ninth sub-passage 62.

As shown in fig. 15 and 16, the control valve is in the first operation mode, the first sub-through hole 1411 and the second sub-through hole 1412 communicate, the third sub-through hole 1413 and the fourth sub-through hole 1414 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, the eighth sub-through hole 1418 and the fifth sub-through hole 1415 communicate, or the eighth sub-through hole 1418 and the ninth sub-through hole 1419 communicate. Among them, the first sub-through hole 1411 and the eighth sub-passage 2142 communicate, the second sub-through hole 1412 and the seventh sub-passage 2141 communicate, the third sub-through hole 1413 and the sixth sub-passage 2132 communicate, the fourth sub-through hole 1414 and the fifth sub-passage 2131 communicate, the sixth sub-through hole 1416 and the first sub-passage 2111 communicate, the seventh sub-through hole 1417 and the second sub-passage 2112 communicate, the eighth sub-through hole 1418 and the fourth sub-passage 2122 communicate, and the third sub-passage 2121 and the communication port 16 communicate.

When the second spool 30 rotates 90 ° counterclockwise, the first sub-through hole 1411 and the second sub-through hole 1412 communicate, the third sub-through hole 1413 and the fourth sub-through hole 1414 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, and the eighth sub-through hole 1418 and the ninth sub-through hole 1419 communicate. When the second spool 30 rotates 90 ° clockwise, the first sub-through hole 1411 and the second sub-through hole 1412 communicate, the third sub-through hole 1413 and the fourth sub-through hole 1414 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, and the eighth sub-through hole 1418 and the fifth sub-through hole 1415 communicate.

Specifically, when the first spool 20 is rotated 45 ° clockwise, the control valve is in the position shown in fig. 17 and 18 (the control valve is in the second operation mode), the first sub-through hole 1411 and the sixth sub-through hole 1416 communicate, the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the seventh sub-through hole 1417 and the eighth sub-through hole 1418 communicate, the fourth sub-through hole 1414 and the fifth sub-through hole 1415 communicate, or the fourth sub-through hole 1414 and the ninth sub-through hole 1419 communicate. Among them, the first sub-through hole 1411 communicates with the fourth sub-passage 2122, the second sub-through hole 1412 communicates with the eighth sub-passage 2142, the third sub-through hole 1413 communicates with the seventh sub-passage 2141, the fourth sub-through hole 1414 communicates with the sixth sub-passage 2132, the sixth sub-through hole 1416 communicates with the third sub-passage 2121, the seventh sub-through hole 1417 communicates with the first sub-passage 2111, the eighth sub-through hole 1418 communicates with the second sub-passage 2112, and the fifth sub-passage 2131 communicates with the communication port 16.

When the second spool 30 rotates 90 ° counterclockwise, the first sub-through hole 1411 and the sixth sub-through hole 1416 communicate, the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the seventh sub-through hole 1417 and the eighth sub-through hole 1418 communicate, and the fourth sub-through hole 1414 and the ninth sub-through hole 1419 communicate; when the second spool 30 rotates 90 ° clockwise, the first sub-through hole 1411 and the sixth sub-through hole 1416 communicate, the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the seventh sub-through hole 1417 and the eighth sub-through hole 1418 communicate, and the fourth sub-through hole 1414 and the fifth sub-through hole 1415 communicate.

Specifically, when the first spool 20 is rotated 90 ° clockwise, the control valve is in the position shown in fig. 19 and 20 (the control valve is in the third operation mode), the second sub-through hole 1412 and the seventh sub-through hole 1417 communicate, the third sub-through hole 1413 and the fourth sub-through hole 1414 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the fifth sub-through hole 1415 communicate, or the sixth sub-through hole 1416 and the ninth sub-through hole 1419 communicate. Wherein the first sub-through hole 1411 communicates with the second sub-passage 2112, the second sub-through hole 1412 communicates with the fourth sub-passage 2122, the third sub-through hole 1413 communicates with the eighth sub-passage 2142, the fourth sub-through hole 1414 communicates with the seventh sub-passage 2141, the sixth sub-through hole 1416 communicates with the fifth sub-passage 2131, the seventh sub-through hole 1417 communicates with the third sub-passage 2121, the eighth sub-through hole 1418 communicates with the first sub-passage 2111, and the communication port 16 communicates with the sixth sub-passage 2132.

When the second spool 30 rotates 90 ° counterclockwise, the second sub-through hole 1412 and the seventh sub-through hole 1417 communicate, the third sub-through hole 1413 and the fourth sub-through hole 1414 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, and the sixth sub-through hole 1416 and the ninth sub-through hole 1419 communicate; when the second spool 30 rotates 90 ° clockwise, the second sub-through hole 1412 and the seventh sub-through hole 1417 communicate, the third sub-through hole 1413 and the fourth sub-through hole 1414 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, and the sixth sub-through hole 1416 and the fifth sub-through hole 1415 communicate.

Specifically, when the first spool 20 is rotated 135 ° clockwise, the control valve is in the position shown in fig. 21 and 22 (the control valve is in the fourth operation mode), the first sub-through hole 1411 and the second sub-through hole 1412 communicate, the third sub-through hole 1413 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, the fourth sub-through hole 1414 and the fifth sub-through hole 1415 communicate, or the fourth sub-through hole 1414 and the ninth sub-through hole 1419 communicate. Wherein the first sub-through hole 1411 communicates with the first sub-channel 2111, the second sub-through hole 1412 communicates with the second sub-channel 2112, the third sub-through hole 1413 communicates with the fourth sub-channel 2122, the fourth sub-through hole 1414 communicates with the eighth sub-channel 2142, the sixth sub-through hole 1416 communicates with the sixth sub-channel 2132, the seventh sub-through hole 1417 communicates with the fifth sub-channel 2131, the eighth sub-through hole 1418 communicates with the third sub-channel 2121, and the communication port 16 communicates with the seventh sub-channel 2141.

When the second spool 30 rotates 90 ° counterclockwise, the first sub-through hole 1411 and the second sub-through hole 1412 communicate, the third sub-through hole 1413 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, and the fourth sub-through hole 1414 and the ninth sub-through hole 1419 communicate; when the second spool 30 rotates 90 ° clockwise, the first sub-through hole 1411 and the second sub-through hole 1412 communicate, the third sub-through hole 1413 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, and the fourth sub-through hole 1414 and the fifth sub-through hole 1415 communicate.

Specifically, when the first spool 20 is rotated 180 ° clockwise, the control valve is in the position shown in fig. 23 and 24 (the control valve is in the fifth operation mode), the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the first sub-through hole 1411 and the fourth sub-through hole 1414 communicate, the seventh sub-through hole 1417 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the fifth sub-through hole 1415 communicate, or the sixth sub-through hole 1416 and the ninth sub-through hole 1419 communicate. Wherein the first sub-through hole 1411 communicates with the third sub-passage 2121, the second sub-through hole 1412 communicates with the first sub-passage 2111, the third sub-through hole 1413 communicates with the second sub-passage 2112, the fourth sub-through hole 1414 communicates with the fourth sub-passage 2122, the sixth sub-through hole 1416 communicates with the seventh sub-passage 2141, the seventh sub-through hole 1417 communicates with the sixth sub-passage 2132, the eighth sub-through hole 1418 communicates with the fifth sub-passage 2131, and the communication port 16 communicates with the eighth sub-passage 2142.

When the second spool 30 rotates 90 ° counterclockwise, the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the first sub-through hole 1411 and the fourth sub-through hole 1414 communicate, the seventh sub-through hole 1417 and the eighth sub-through hole 1418 communicate, and the sixth sub-through hole 1416 and the ninth sub-through hole 1419 communicate; when the second spool 30 rotates 90 ° clockwise, the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the first sub-through hole 1411 and the fourth sub-through hole 1414 communicate, the seventh sub-through hole 1417 and the eighth sub-through hole 1418 communicate, and the sixth sub-through hole 1416 and the fifth sub-through hole 1415 communicate.

Specifically, when the first spool 20 rotates 225 ° clockwise, the control valve is in the position shown in fig. 25 and 26 (the control valve is in the sixth operation mode), the fourth sub-through hole 1414 and the third sub-through hole 1413 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, the second sub-through hole 1412 and the fifth sub-through hole 1415 communicate, or the second sub-through hole 1412 and the ninth sub-through hole 1419 communicate. Wherein the first sub-through hole 1411 communicates with the fifth sub-passage 2131, the second sub-through hole 1412 communicates with the third sub-passage 2121, the third sub-through hole 1413 communicates with the first sub-passage 2111, the fourth sub-through hole 1414 communicates with the second sub-passage 2112, the sixth sub-through hole 1416 communicates with the eighth sub-passage 2142, the seventh sub-through hole 1417 communicates with the seventh sub-passage 2141, the eighth sub-through hole 1418 communicates with the sixth sub-passage 2132, and the communication port 16 communicates with the fourth sub-passage 2122.

When the second spool 30 rotates 90 ° counterclockwise, the fourth sub-through hole 1414 and the third sub-through hole 1413 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, and the second sub-through hole 1412 and the ninth sub-through hole 1419 communicate; when the second spool 30 rotates 90 ° clockwise, the fourth sub-through hole 1414 and the third sub-through hole 1413 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the seventh sub-through hole 1417 communicate, and the second sub-through hole 1412 and the fifth sub-through hole 1415 communicate.

Specifically, when the first spool 20 is rotated 270 ° clockwise, the control valve is in the position shown in fig. 27 and 28 (the control valve is in the seventh operation mode), the second sub-through hole 1412 communicates with the first sub-through hole 1411, the eighth sub-through hole 1418 communicates with the seventh sub-through hole 1417, the sixth sub-through hole 1416 communicates with the third sub-through hole 1413, the fourth sub-through hole 1414 communicates with the fifth sub-through hole 1415, or the fourth sub-through hole 1414 communicates with the ninth sub-through hole 1419. Wherein the first sub-through hole 1411 and the sixth sub-passage 2132 communicate, the second sub-through hole 1412 and the fifth sub-passage 2131 communicate, the third sub-through hole 1413 and the third sub-passage 2121 communicate, the fourth sub-through hole 1414 and the first sub-passage 2111 communicate, the sixth sub-through hole 1416 and the fourth sub-passage 2122 communicate, the seventh sub-through hole 1417 and the eighth sub-passage 2142 communicate, the eighth sub-through hole 1418 and the seventh sub-passage 2141 communicate, and the communication port 16 and the second sub-passage 2112 communicate.

When the second spool 30 rotates 90 ° counterclockwise, the second sub-through hole 1412 communicates with the first sub-through hole 1411, the eighth sub-through hole 1418 communicates with the seventh sub-through hole 1417, the sixth sub-through hole 1416 communicates with the third sub-through hole 1413, and the fourth sub-through hole 1414 communicates with the ninth sub-through hole 1419; when the second spool 30 rotates 90 ° clockwise, the second sub-through hole 1412 communicates with the first sub-through hole 1411, the eighth sub-through hole 1418 communicates with the seventh sub-through hole 1417, the sixth sub-through hole 1416 communicates with the third sub-through hole 1413, and the fourth sub-through hole 1414 communicates with the fifth sub-through hole 1415.

Specifically, when the first spool 20 is rotated by 310 ° clockwise, the control valve is in the position shown in fig. 29 and 30 (the control valve is in the eighth operation mode), the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the fourth sub-through hole 1414 and the seventh sub-through hole 1417 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, the sixth sub-through hole 1416 and the fifth sub-through hole 1415 communicate, or the sixth sub-through hole 1416 and the ninth sub-through hole 1419 communicate. Wherein the first sub-through hole 1411 communicates with the seventh sub-passage 2141, the second sub-through hole 1412 communicates with the sixth sub-passage 2132, the third sub-through hole 1413 communicates with the fifth sub-passage 2131, the fourth sub-through hole 1414 communicates with the third sub-passage 2121, the sixth sub-through hole 1416 communicates with the second sub-passage 2112, the seventh sub-through hole 1417 communicates with the fourth sub-passage 2122, the eighth sub-through hole 1418 communicates with the eighth sub-passage 2142, and the communication port 16 communicates with the first sub-passage 2111.

When the second spool 30 rotates 90 ° counterclockwise, the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the fourth sub-through hole 1414 and the seventh sub-through hole 1417 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, and the sixth sub-through hole 1416 and the ninth sub-through hole 1419 communicate; when the second spool 30 rotates 90 ° clockwise, the second sub-through hole 1412 and the third sub-through hole 1413 communicate, the fourth sub-through hole 1414 and the seventh sub-through hole 1417 communicate, the first sub-through hole 1411 and the eighth sub-through hole 1418 communicate, and the sixth sub-through hole 1416 and the fifth sub-through hole 1415 communicate.

As shown in fig. 1, the control valve further includes a valve cover 40, and the valve cover 40 covers the valve seat 10 to protect the first and second valve spools 20 and 30.

Optionally, the second valve element 30 is one; alternatively, the number of the second valve cores 30 is plural, the number of the communication ports 16 is plural, and the plurality of the second valve cores 30 are arranged in one-to-one correspondence with the plurality of the communication ports 16; and/or the first spool 20 is one; alternatively, the plurality of first valve elements 20 are provided, and the plurality of first valve elements 20 are communicated with each other through the communication portion 31. Like this, above-mentioned setting makes the control valve further can control a plurality of flow paths to satisfy different user demands and operating mode, also promoted the commonality of control valve.

In this embodiment, the number of the first valve cores 20 is one, and the number of the second valve cores 30 is one, so that the structure of the control valve is simpler, the processing and implementation are easy, and the processing cost of the control valve is reduced.

It should be noted that the number of the second valve cores 30 is not limited thereto, and may be adjusted according to the working condition and the use requirement. Alternatively, the second spool 30 is two, or three, or four, or more.

It should be noted that the number of the first valve cores 20 is not limited thereto, and may be adjusted according to the working condition and the use requirement. Alternatively, the first valve spool 20 is two, or three, or four, or more.

Example two

The control valve in the second embodiment is different from the first embodiment in that: the first spool 20 is different in structure.

As shown in fig. 31, the plurality of passages 21 further includes a fifth passage 215 and a sixth passage 216, and the first spool 20 further includes an eighth plate 29. The eighth plate 29 is disposed between the first plate 22 and the second plate 23 and connected to both the first plate 22 and the second plate 23, the eighth plate 29, a portion of the first plate 22 and a portion of the second plate 23 surround to form a fifth channel 215, and the eighth plate 29, the fourth plate 25, a portion of the first plate 22 and a portion of the second plate 23 surround to form a sixth channel 216. In this way, the eighth plate 29 is disposed in the installation space, such that the eighth plate 29, a part of the first plate 22 and a part of the second plate 23 surround to form a fifth channel 215, and the eighth plate 29, the fourth plate 25, a part of the first plate 22 and a part of the second plate 23 surround to form a sixth channel 216. Both ends of the fifth passage 215 may communicate with the two first valve ports 12, respectively, or may communicate with the first valve ports 12 and the communication port 16, respectively. Both ends of the sixth passage 216 may communicate with the two first valve ports 12, respectively, or may communicate with the first valve ports 12 and the communication port 16, respectively.

As shown in fig. 31, the first plate 22 and the second plate 23 are circular plates, and the eighth plate 29 includes a seventh plate segment 291, an eighth plate segment 292, and a ninth plate segment 293. Wherein seventh plate segment 291 extends in the radial direction of the circular plate. The ninth plate segment 293 extends in the radial direction of the circular plate and is disposed at a fifth included angle E with the seventh plate segment 291, and two ends of the eighth plate segment 292 are connected to the seventh and

ninth plate segments

291 and 293, respectively. In this way, the arrangement ensures that the eighth plate 29 can surround the fifth channel 215 and the sixth channel 216, which also makes the structure of the eighth plate 29 simpler, easy to process and implement, and reduces the processing cost of the eighth plate 29.

Optionally, the fifth included angle E satisfies:

the number of channels 21 is n. In this embodiment, n is four, and the fifth included angle E is 90 °.

Example III

The control valve in the third embodiment is different from the first embodiment in that: the first spool 20 is different in structure.

As shown in fig. 32 and 33, the plurality of passages 21 further includes a seventh passage 74 and an eighth passage 75, the first valve core 20 further includes a ninth plate 70, the ninth plate 70 is disposed between the first plate 22 and the second plate 23 and is connected to both the first plate 22 and the second plate 23, the seventh passage 74 is formed around the ninth plate 70, a part of the first plate 22, a part of the second plate 23, and the third plate 24, and the eighth passage 75 is formed around the ninth plate 70, a part of the first plate 22, and a part of the second plate 23. Thus, the ninth plate 70 is disposed in the installation space, and both ends of the seventh passage 74 may communicate with the two first valve ports 12, respectively, or may communicate with the first valve ports 12 and the communication port 16, respectively. Both ends of the eighth passage 75 may communicate with the two first valve ports 12, respectively, or may communicate with the first valve ports 12 and the communication port 16, respectively.

As shown in fig. 32, the ninth plate 70 includes a tenth plate segment 71, an eleventh plate segment 72, and a twelfth plate segment 73. Wherein the tenth plate section 71 extends in the radial direction of the circular plate. The twelfth plate section 73 extends in the radial direction of the circular plate and is disposed at a predetermined angle with respect to the tenth plate section 71. Both ends of the eleventh plate section 72 are connected to the tenth plate section 71 and the twelfth plate section 73, respectively. In this way, the above arrangement ensures that the ninth plate 70 can surround the eighth channel 75, which also makes the structure of the ninth plate 70 simpler, easy to process and implement, and reduces the processing cost of the ninth plate 70.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

the valve seat is provided with a first valve cavity and a second valve cavity, and the first valve cavity is communicated with the second valve cavity through a communication port. The control valve comprises a first valve core and a second valve core, wherein the first valve core is movably arranged in the first valve cavity and used for controlling the on-off of a plurality of first valve ports and a plurality of second valve ports. The second valve core is movably arranged in the second valve cavity and used for controlling the communication quantity of the second valve port and the communication ports so as to control a plurality of flow paths. Meanwhile, the communication part can also be used for adjusting the flow entering each second valve port.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A control valve, comprising:

a valve seat (10) having a first valve chamber (11), a second valve chamber (17), a communication port (16), a plurality of first valve ports (12) and a plurality of second valve ports (13), wherein the first valve chamber (11) is communicated with the plurality of first valve ports (12), the second valve chamber (17) is communicated with the plurality of second valve ports (13), and the first valve chamber (11) is communicated with the second valve chamber (17) through the communication port (16);

A first valve core (20) movably arranged in the first valve cavity (11), wherein the first valve core (20) comprises a plurality of channels (21), two ends of at least one channel (21) are respectively communicated with two first valve ports (12), and at least one first valve port (12) is communicated with the communication port (16) through the channel (21);

the second valve core (30) is movably arranged in the second valve cavity (17), the second valve core (30) comprises a communication part (31), and the communication part (31) is used for controlling the communication quantity of the second valve port (13) and the communication port (16).

2. The control valve of claim 1, further comprising:

the first driving device is in driving connection with the first valve core (20) so as to drive the first valve core (20) to rotate around the central axis of the first valve core (20), and a plurality of first valve ports (12) are arranged at intervals around the central axis of the first valve core (20); and/or the number of the groups of groups,

and the second driving device is in driving connection with the second valve core (30) so as to drive the second valve core (30) to rotate around the central axis of the second valve core (30), and a plurality of second valve ports (13) are arranged at intervals around the central axis of the second valve core (30).

3. A control valve according to claim 2, characterized in that the centre axis of the first valve port (12) and the centre axis of the second valve port (13) are arranged parallel to each other.

4. The control valve according to claim 2, characterized in that the valve seat (10) comprises:

a valve seat body (14) having a plurality of first flow holes (141) and a plurality of second flow holes (142);

the coaming (15) is arranged on the valve seat body (14) and is positioned on the inner sides of the first flow holes (141) and the second flow holes (142), the first valve ports (12) and the second valve ports (13) are all arranged on the coaming (15), the first flow holes (141) and the first valve ports (12) are arranged in a one-to-one correspondence manner, and the second flow holes (142) and the second valve ports (13) are arranged in a one-to-one correspondence manner.

5. A control valve according to claim 4, characterized in that the shroud (15) comprises:

the first enclosing plate section (151), wherein the first enclosing plate section (151) is an arc-shaped plate section, and the first valve port (12) is arranged on the side wall of the arc-shaped plate section;

the first transition plate section (152) and the second transition plate section (153) are oppositely arranged, two sides of the arc-shaped plate section are respectively connected with the first transition plate section (152) and the second transition plate section (153), and the communication port (16) is formed between the first transition plate section (152) and the second transition plate section (153);

And the second surrounding plate section surrounds the second valve cavity (17).

6. The control valve of claim 4, wherein the first flow bore (141) is a scalloped bore.

7. The control valve of claim 5, further comprising:

the first sealing structure (50) is arranged between the first enclosing plate section (151) and the first valve core (20), the first sealing structure (50) is provided with a plurality of first through holes (51), and the first through holes (51) and the first valve ports (12) are arranged in a one-to-one correspondence mode.

8. The control valve of claim 5, further comprising:

a second sealing structure (60) arranged between the second surrounding plate section and the second valve core (30); wherein the second sealing structure (60) has a second through hole (61), and the communication portion (31) communicates with the second valve port (13) through the second through hole (61).

9. The control valve of claim 1, wherein the plurality of passages (21) includes a first passage (211), the first spool (20) further comprising:

a first plate body (22);

a second plate body (23) disposed opposite to the first plate body (22);

The third plate body (24) is arranged between the first plate body (22) and the second plate body (23) and is connected with the first plate body (22) and the second plate body (23), and the third plate body (24), part of the first plate body (22) and part of the second plate body (23) surround and form the first channel (211).

10. The control valve according to claim 9, characterized in that the first plate body (22) and the second plate body (23) are circular plates, the third plate body (24) comprising:

a fourth plate segment (241) extending in a radial direction of the circular plate;

a fifth plate segment (242);

a sixth plate section (243) extending in the radial direction of the circular plate and disposed at a first angle a with respect to the fourth plate section (241); both ends of the fifth plate section (242) are respectively connected with the fourth plate section (241) and the sixth plate section (243).

11. The control valve of claim 10, wherein the plurality of passages (21) further includes a second passage (212), the first spool (20) further including:

the fourth plate body (25) is arranged between the first plate body (22) and the second plate body (23) and is connected with the first plate body (22) and the second plate body (23), and the fourth plate body (25) and the fifth plate section (242) are arranged at intervals; the second channel (212) is formed between the fourth plate body (25), part of the first plate body (22), part of the second plate body (23) and the third plate body (24) in a surrounding mode.

12. The control valve according to claim 11, characterized in that the fourth plate body (25) and the fifth plate section (242) are arranged parallel to each other; and/or the fourth plate (25) passes through the central axis of the second plate (23).

13. The control valve of claim 11, wherein the plurality of passages (21) further includes a third passage (213), the first spool (20) further including:

the fifth plate body (26) is arranged between the first plate body (22) and the second plate body (23) and is connected with the first plate body (22) and the second plate body (23), and one end of the fifth plate body (26) is connected with the fourth plate body (25) and is arranged at a second included angle B with the fourth plate body (25);

the sixth plate body (27) is arranged between the first plate body (22) and the second plate body (23) and is connected with the first plate body (22) and the second plate body (23), the sixth plate body (27) extends along the radial direction of the circular plate and is connected with the other end of the fifth plate body (26), and a third included angle C is formed between the sixth plate body (27) and the fourth plate body (25);

wherein, part of the fourth plate body (25), the fifth plate body (26), at least part of the sixth plate body (27), part of the first plate body (22) and part of the second plate body (23) are surrounded to form the third channel (213).

14. The control valve of claim 13, wherein the plurality of passages (21) further includes a fourth passage (214), the first spool (20) further including:

the seventh plate body (28) is arranged between the first plate body (22) and the second plate body (23) and is connected with the first plate body (22) and the second plate body (23), two ends of the seventh plate body (28) are respectively connected with the fourth plate body (25) and the sixth plate body (27), and a fourth included angle D is formed between the seventh plate body (28) and the fourth plate body (25);

wherein a part of the fourth plate body (25), the seventh plate body (28), at least a part of the sixth plate body (27), a part of the first plate body (22) and a part of the second plate body (23) are surrounded to form the fourth channel (214).

15. According to claim 14The control valve is characterized in that a first distance L is arranged between the fifth plate section (242) and the central axis of the circular plate ₁ A second distance L is provided between the fifth plate body (26) and the central axis of the circular plate ₂ A third distance L is provided between the seventh plate body (28) and the central axis of the circular plate ₃ The method comprises the steps of carrying out a first treatment on the surface of the Wherein L is ₁ ＝L ₂ ＝L ₃ 。

16. The control valve of claim 11, wherein the plurality of passages (21) further includes a fifth passage (215) and a sixth passage (216), the first spool (20) further comprising:

Eighth plate body (29), set up between first plate body (22) with second plate body (23) and with first plate body (22) with second plate body (23) all are connected, eighth plate body (29), part first plate body (22) and part second plate body (23) are around forming fifth passageway (215), eighth plate body (29), fourth plate body (25), part first plate body (22) and part second plate body (23) are around forming sixth passageway (216).

17. The control valve according to claim 16, characterized in that the first plate body (22) and the second plate body (23) are circular plates, and the eighth plate body (29) comprises:

a seventh plate segment (291) extending in a radial direction of the circular plate;

an eighth plate segment (292);

and a ninth plate section (293) extending along the radial direction of the circular plate and forming a fifth included angle E with the seventh plate section (291), wherein two ends of the eighth plate section (292) are respectively connected with the seventh plate section (291) and the ninth plate section (293).

18. The control valve according to claim 1, characterized in that said second spool (30) is one; or, the number of the second valve cores (30) is multiple, the number of the communication ports (16) is multiple, and the second valve cores (30) are arranged in one-to-one correspondence with the communication ports (16); and/or, the first valve core (20) is one; alternatively, the number of the first valve cores (20) is plural, and the plural first valve cores (20) are communicated with each other through the communication part (31).