Control valve

Abstract

The invention discloses a control valve which comprises a valve element and a sealing piece. The sealing piece is provided with a notch and a through hole, and the notch and the through hole are arranged in a spaced mode in the circumferential direction of the control valve. At least part of the valve element is rotationally arranged in the sealing piece, the valve element comprises an abutting rib, and in any mode of the control valve, the abutting rib abuts against the portion, between the notch and the through hole, of the sealing piece. The abutting rib can abut against the sealing piece between the notch and the through hole, so that the notch is conveniently isolated from the through hole, and the situation of streaming between the through hole and the notch is improved.

Description

Technical Field

[0001] The present invention relates to the field of fluid control, and in particular to a control valve. Background Art

[0002] Typically, the valve core of the control valve rotates under the drive of a driving member to achieve fluid control of multiple flow paths by the control valve. A sealing gasket is provided between the existing valve body and the valve core to enhance the sealing performance, but the gap in the sealing gasket itself may cause cross-flow between the through hole. Summary of the Invention

[0003] The object of the present invention is to provide a control valve which can improve the cross-flow between the notch and the through hole.

[0004] An embodiment of the present invention provides a control valve, including a valve core and a sealing member; the sealing member has a notch and a through hole, and the notch and the through hole are spaced apart along the circumference of the control valve; at least a portion of the valve core is rotatably disposed in the sealing member, and the valve core includes an abutment rib, and in any mode of the control valve, the abutment rib abuts against the sealing member between the notch and the through hole.

[0005] According to the control valve provided by the embodiment of the present invention, the abutment rib can abut against the sealing member between the notch and the through hole, thereby isolating the notch from the through hole and improving the cross-flow between the through hole and the notch. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 1 is a schematic structural diagram of a control valve provided by an embodiment of the present invention;

[0007] Figure 2 1 is a schematic diagram of an exploded structure of a control valve provided in an embodiment of the present invention;

[0008] Figure 3 Schematic diagram of the structure of the valve body provided by an embodiment of the present invention;

[0009] Figure 4 1 is a schematic structural diagram of a sealing member provided by an embodiment of the present invention;

[0010] Figure 5 Schematic diagram of the structure of the valve core provided by an embodiment of the present invention;

[0011] Figure 6 This is a schematic structural diagram of the valve core provided by an embodiment of the present invention from another perspective;

[0012] Figure 7 2 is a schematic cross-sectional structural diagram of the first conducting cavity portion and the second conducting cavity portion of the valve core provided by an embodiment of the present invention;

[0013] Figure 82 is a schematic cross-sectional structural diagram of the third and fourth conducting cavities of the valve core provided by an embodiment of the present invention;

[0014] Figure 9 Schematic diagram of the exploded structure of the valve cover and the sealing ring provided in an embodiment of the present invention;

[0015] Figure 10 This is a schematic diagram of the assembly of the valve body, the first pipeline, and the second pipeline provided in an embodiment of the present invention;

[0016] Figure 11 1 is a schematic diagram of a partial cross-sectional structure of a control valve in a first working mode provided by an embodiment of the present invention;

[0017] Figure 12 is a schematic diagram of another partial cross-sectional structure of the control valve in the first working mode provided by an embodiment of the present invention;

[0018] Figure 13 is a schematic diagram of a partial cross-sectional structure of a control valve in a second working mode provided by an embodiment of the present invention;

[0019] Figure 14 is another partial cross-sectional structural diagram of the control valve in the second working mode provided by an embodiment of the present invention;

[0020] Figure 15 is a schematic diagram of a partial cross-sectional structure of a control valve in a third working mode provided by an embodiment of the present invention;

[0021] Figure 16 is another partial cross-sectional structural diagram of the control valve in the third working mode provided by an embodiment of the present invention;

[0022] Figure 17 is a schematic diagram of a partial cross-sectional structure of a control valve in a fourth working mode provided by an embodiment of the present invention;

[0023] Figure 18 It is a schematic diagram of another partial cross-sectional structure of the control valve in the fourth working mode provided by an embodiment of the present invention.

[0024] 100, valve body; 110, valve cavity; 120, first group of interfaces; 121, first interface; 122, second interface; 123, sixth interface; 124, fourth interface; 125, third interface; 126, seventh interface; 130, second group of interfaces; 131, fifth interface; 132, eighth interface; 140, first stopper; 150, mounting portion; 160, annular portion; 200, valve core; 210, first group of conducting cavities; 211, first conducting cavity; 212, second conducting cavity; 213, third conducting cavity; 220, second group of conducting cavities; 221, fourth conducting cavity; 222, fifth conducting cavity; 223, sixth conducting cavity ;230, partition part;231, first partition part;232, second partition part;233, third partition part;240, conducting cavity part;241, first conducting cavity part;242, second conducting cavity part;243, third conducting cavity part;244, fourth conducting cavity part;250, reinforcing rib;260, transmission part;270, second stop part;280, rotating part;290, sealing rib;300, first pipeline;400, second pipeline;500, sealing element;510, inner surface;520, outer surface;530, through hole;540, convex rib part;550, plug-in part;560, notch;600, valve cover;700, sealing ring. DETAILED DESCRIPTION

[0025] The features and exemplary embodiments of various aspects of the present invention are described below. To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below with reference to the accompanying drawings and specific embodiments. In this document, relational terms such as "first" and "second" are used merely to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0026] See also Figures 1 to 10 The control valve includes a valve body 100 , a valve core 200 , a first pipe 300 , a second pipe 400 , a sealing member 500 , a valve cover 600 , and a sealing ring 700 .

[0027] Please refer to 1 to Figure 3 The valve body 100 is hollow, with one axial end open and the other axial end closed. The space within the valve body 100 and the valve cover 600 together define a valve cavity 110, into which the valve core 200, the seal 500, and the like can be installed through the opening. To facilitate the provision of circumferentially arranged interfaces on the valve body 100, the valve body 100 can be cylindrical. Furthermore, to facilitate the rotation of the valve core 200 within the valve cavity 110, the valve cavity 110 can also be cylindrical.

[0028] It should be noted that, since the valve body 100 is cylindrical, the valve body 100 has a central axis, and the direction of the central axis is defined as the axial direction.

[0029] The valve body 200 is provided with at least two groups of interfaces. In this embodiment, two groups of interfaces are preferably provided, specifically a first group of interfaces 120 and a second group of interfaces 130. The first group of interfaces 120 and the second group of interfaces 130 are both provided on the annular inner side surface of the valve body 100, and are spaced apart from each other along the axial direction. Importantly, the number of the first group of interfaces 120 and the number of the second group of interfaces 130 are not equal, and the angles between at least some of the interfaces in the first group of interfaces 120 and at least some of the interfaces in the second group of interfaces 130 are different.

[0030] The valve core 200 is rotatably disposed in the valve cavity 110. The valve core 200 has at least two groups of conducting cavities. In this embodiment, two groups of conducting cavities are preferably used, specifically a first group of conducting cavities 210 and a second group of conducting cavities 220. Axially, the first group of conducting cavities 210 and the second group of conducting cavities 220 are spaced apart. The first group of conducting cavities 210 can be used to not conduct or conduct at least part of the first group of interfaces 120, and the second group of conducting cavities 220 can be used to close or conduct at least part of the second group of interfaces 130. Moreover, since the number of the first group of interfaces 120 is not equal to the number of the second group of interfaces 130, and the angles between at least part of the interfaces of the first group of interfaces 120 are different from the angles between at least part of the interfaces of the second group of interfaces 130, it is possible to achieve different numbers of interfaces that are conducted in each group, thereby achieving multiple passage modes. In this article, interface closure means that the interface is not connected to other interfaces.

[0031] Specifically, the first group of interfaces 120 includes a first interface 121, a second interface 122, a sixth interface 123, a fourth interface 124, a third interface 125, and a seventh interface 126. The first interface 121, the second interface 122, the sixth interface 123, the fourth interface 124, the third interface 125, and the seventh interface 126 are sequentially spaced along the circumference. It is worth noting that the angles between adjacent interfaces of the six interfaces can be the same or different, so that the same conductive cavity can conduct different numbers of interfaces at different locations, thereby achieving multiple flow modes.

[0032] The second group of interfaces 130 includes a fifth interface 131 and an eighth interface 132 , and the fifth interface 131 and the eighth interface 132 are sequentially spaced apart along the circumferential direction.

[0033] More specifically, in a clockwise direction, the angles between the first interface 121 and the second interface 122, the angle between the second interface 122 and the sixth interface 123, and the angle between the seventh interface 126 and the first interface 121 are all 40°. The angle between the fourth interface 124 and the third interface 125 is 40°, the angle between the sixth interface 123 and the fourth interface 124 is 80°, and the angle between the third interface 125 and the seventh interface 126 is 120°.

[0034] The included angle between the fifth interface (131) and the eighth interface (132) is 160°.

[0035] It should be noted that the angle mentioned here refers to the central angle between the axial center lines of the interface.

[0036] See also Figures 5 to 8 The valve core 200 includes a first baffle portion 231, a second baffle portion 232, and a third baffle portion 233. The first baffle portion 231, the second baffle portion 232, and the third baffle portion 233 are spaced apart in the axial direction. To facilitate rotation within the valve cavity 110, the first baffle portion 231, the second baffle portion 232, and the third baffle portion 233 have circular cross-sections perpendicular to the axial direction. It should be noted that the distance between the first baffle portion 231 and the second baffle portion 232, and the distance between the second baffle portion 232 and the third baffle portion 233 can be the same or different.

[0037] The valve core 200 further includes a first conducting cavity 241, a second conducting cavity 242, a third conducting cavity 243, and a fourth conducting cavity 244. The first conducting cavity 241 and the second conducting cavity 242 are disposed between the first baffle 231 and the second baffle 232. Specifically, the first conducting cavity 241 and the second conducting cavity 242 are spaced apart from each other, and along the axial direction, the ends of the first conducting cavity 241 are respectively fixed to the first baffle 231 and the second baffle 232, while the ends of the second conducting cavity 242 are respectively fixed to the first baffle 231 and the second baffle 232. The first conducting cavity 241 and the second conducting cavity 242 can separate the space between the first baffle 231 and the second baffle 232 into a first group of conducting cavities 210.

[0038] The third and fourth conducting cavities 243 and 244 are disposed between the second and third partitions 232 and 233. Specifically, the third and fourth conducting cavities 243 and 244 are spaced apart from each other, and along the axial direction, the ends of the third conducting cavities 243 are respectively fixed to the second and third partitions 232 and 233, while the ends of the fourth conducting cavities 244 are respectively fixed to the second and third partitions 232 and 233. The third and fourth conducting cavities 243 and 244 can separate the space between the second and third partitions 232 and 233 into a second group of conducting cavities 220.

[0039] It should be noted that in this embodiment, along the axial direction, the first and third conductive cavities 241, 243 are positioned in the same or similar positions and shapes, and the second and fourth conductive cavities 242, 244 are positioned in the same or similar positions and shapes. Therefore, it can be seen that the positions and shapes, etc., of the first and second groups of conductive cavities 210, 220 are also positioned in the same or similar positions. Specifically, the first conductive cavity 241 includes a first end and a second end, and the third conductive cavity 243 includes a fifth end and a sixth end. The first and fifth ends are located in the same axial direction, and the second and sixth ends are located in the same axial direction. The second conductive cavity 242 includes a third end and a fourth end, and the fourth conductive cavity 244 includes a seventh end and an eighth end. The third and seventh ends are located in the same axial direction, and the fourth and eighth ends are located in the same axial direction.

[0040] However, the first group of interfaces 120 and the second group of interfaces 130 have different numbers of interfaces. Therefore, even if the first group of conductive cavities 210 and the second group of conductive cavities 220 are the same, the first group of conductive cavities 210 and the second group of conductive cavities 220 may conduct different numbers of interfaces.

[0041] Of course, in other embodiments, along the axial direction, the setting position and shape of the first conductive cavity 241 and the third conductive cavity 243 and the setting position and shape of the second conductive cavity 242 and the fourth conductive cavity 244 may also be different, thereby forming different first groups of conductive cavities 210 and second groups of conductive cavities 220, thereby realizing different passage modes.

[0042] Specifically, the first group of conducting cavities 210 includes a first conducting cavity 211 , a second conducting cavity 212 , and a third conducting cavity 213 , and for the valve core 200 , the first conducting cavity 211 , the second conducting cavity 212 , and the third conducting cavity 213 are not connected to each other.

[0043] The first and second conductive cavities 241, 242 are both elongated, with both ends of the first and second conductive cavities 241, 242 located at the edges of the first and second baffles 231, 232, respectively. The middle portions of the first and second conductive cavities 241, 242 are located between the first and second baffles 231, 232. In other words, because the cross-sections of the first and second baffles 231, 232 perpendicular to the axial direction are circular, both ends of the first and second conductive cavities 241, 242 are located on the circle, and the middle portions of the first and second conductive cavities 241, 242 are located within the circle.

[0044] In addition, the first conductive cavity portion 241, the first partition portion 231, and the second partition portion 232 surround at least a portion of the first conductive cavity 211; the first conductive cavity portion 241, the second conductive cavity portion 242, the first partition portion 231, and the second partition portion 232 surround at least a portion of the second conductive cavity 212; and the second conductive cavity portion 242, the first partition portion 231, and the second partition portion 232 surround at least the third conductive cavity 213. It is conceivable that because both ends of the first conductive cavity portion 241 and the second conductive cavity portion 242 are located at the edges of the first partition portion 231 and the second partition portion 232, the first conductive cavity 211, the second conductive cavity 212, and the third conductive cavity 213 can be separated from each other and are not connected to each other.

[0045] The second group of conducting cavities 220 includes a fourth conducting cavity 221 , a fifth conducting cavity 222 , and a sixth conducting cavity 223 , and the fourth conducting cavity 221 , the fifth conducting cavity 222 , and the sixth conducting cavity 223 are not connected to each other.

[0046] The third and fourth conductive cavities 243 and 244 are both elongated, with both ends of the third and fourth conductive cavities 243 and 244 located at the edges of the second and third partitions 232 and 233, respectively. The middle portions of the third and fourth conductive cavities 243 and 244 are located between the second and third partitions 232 and 233. In other words, because the cross-sections of the second and third partitions 232 and 233 perpendicular to the axial direction are circular, both ends of the third and fourth conductive cavities 243 and 244 are located on the circle, and the middle portions of the third and fourth conductive cavities 243 and 244 are located within the circle.

[0047] In addition, the third conductive cavity portion 243, the second partition portion 232, and the third partition portion 233 surround at least a portion of the fourth conductive cavity 221, the third conductive cavity portion 243, the fourth conductive cavity portion 244, the second partition portion 232, and the third partition portion 233 surround at least a portion of the fifth conductive cavity 222, and the fourth conductive cavity portion 244, the second partition portion 232, and the third partition portion 233 surround at least a portion of the sixth conductive cavity 223.

[0048] The first conducting cavity 241 , the second conducting cavity 242 , the third conducting cavity 243 , and the fourth conducting cavity 244 may be symmetrically arranged with the diameter of the second partition 232 as the center line.

[0049] The area enclosed between the two ends of the first conductive cavity 241 is the first conductive cavity 211. In this embodiment, the area enclosed between the two ends of the first conductive cavity 241 can include at most three interfaces. In other words, the first conductive cavity 211 can conduct at most three interfaces.

[0050] In this embodiment, the first conducting cavity portion 241 and the second conducting cavity portion 242 may be symmetrically arranged with the diameter of the second partition portion 232 as the center line.

[0051] The first conductive cavity 241 and the second conductive cavity 242 may have at most one interface between their two symmetrical ends. The first conductive cavity 241 and the second conductive cavity 242 may have at most two interfaces between their other two symmetrical ends. In other words, the second conductive cavity 212 may have at most three interfaces.

[0052] Since the first conductive cavity 241 and the second conductive cavity 242 can be symmetrically arranged with the diameter of the second partition portion 232 as the center line, the area enclosed between the two ends of the second conductive cavity 242 can also include at most three interfaces, that is, the third conductive cavity 213 can conduct three interfaces at most.

[0053] It can be imagined that, along the axial direction, the setting position, shape, etc. of the first conductive cavity 241 and the third conductive cavity 243 are the same, and the setting position, shape, etc. of the second conductive cavity 242 and the fourth conductive cavity 244 are the same. Therefore, it can be seen that the fourth conductive cavity 221 can conduct at most three interfaces, the fifth conductive cavity 222 can conduct at most three interfaces, and the sixth conductive cavity 223 can conduct at most three interfaces.

[0054] Of course, in other embodiments, according to actual needs, the angles between the interfaces can be changed, as well as the sizes of the areas enclosed by the first conductive cavity 241, the second conductive cavity 242, the third conductive cavity 243 and the fourth conductive cavity 244 at both ends, so as to achieve different passage modes.

[0055] See also Figures 3 and 4 In order to enhance the sealing between the valve body 100 and the valve core 200, a sealing member 500 is further provided between the valve body 100 and the valve core 200. Specifically, the sealing member 500 is generally annular, with the side of the sealing member 500 facing the valve core 200 being an inner surface 510 and the side of the sealing member 500 facing the valve body 100 being an outer surface 520.

[0056] The seal 500 is provided with a plurality of through holes 530, which are divided into two groups along the axial direction. The two groups of through holes 530 correspond one to one with the first group of interfaces 120 and the second group of interfaces 130. In other words, each interface of the first group of interfaces 120 and the second group of interfaces 130 corresponds to a through hole 530, and the interfaces can communicate with the corresponding conduction cavity through the corresponding through hole 530.

[0057] In order to further enhance the sealing performance, a rib portion 540 is provided on the outer surface 520 of the seal 500. The rib portion 540 protrudes from the outer surface 520. When the seal 500 is installed in the valve cavity 110, the rib portion 540 abuts against and deforms the inner wall surface of the valve body 100, thereby achieving a better sealing effect.

[0058] A plurality of ribs 540 are provided, with some ribs 540 spaced apart circumferentially of the seal 500, while others are spaced apart axially of the seal 500. The two ribs 540 are arranged in a staggered manner. Specifically, a rib 540 is provided between adjacent through-holes 530 in the axial direction, and a rib 540 is provided between adjacent through-holes 530 in the circumferential direction. This arrangement ensures that each through-hole 530 is surrounded by a circle of ribs 540, which isolates each through-hole 530. In other words, when fluid flows, it can only flow within a specific through-hole 530, the conducting cavity, and the interface connected to that through-hole 530, and cannot flow into other interfaces or conducting cavities.

[0059] To facilitate installation of the seal 500 within the valve cavity 110, the seal 500 has an incomplete annular shape. Plug-in sections 550 are formed at each circumferential end of the seal 500. Correspondingly, a T-shaped mounting section 150 is provided on the inner wall of the valve body 100. One end of the mounting section 150 is fixed to the inner wall of the valve body 100, while the other end forms two retaining spaces with the inner wall of the valve body 100. The two plug-in sections 550 can be correspondingly retained in the two retaining spaces, thereby achieving installation of the seal 500.

[0060] See also Figure 3 and Figure 6 In order to facilitate the rotation of the valve core 200 in the valve cavity 110, an annular portion 160 is provided on the axial inner wall surface of the valve body 100, and a rotating portion 280 is provided on the axial end surface of the valve core 200. The rotating portion 280 can be inserted into the annular portion 160. The annular portion 160 can limit the rotating portion 280, so that the valve core 200 can only rotate along the axial direction, thereby enhancing the stability of the valve core 200 during installation and rotation.

[0061] In order to limit the rotation angle of the valve core 200, a first stop portion 140 is provided on the axial inner wall surface of the valve body 100, and a second stop portion 270 is provided on the axial end face of the valve core 200. When the valve core 200 rotates, the second stop portion 270 abuts against the first stop portion 140 to limit the valve core 200 from continuing to rotate.

[0062] See also Figure 5 and Figure 9 When the valve core 200 and the sealing member 500 are both arranged in the valve cavity 110, the valve cover 600 can be fixed to the opening edge of the valve body 100, thereby fixing the valve core 200 and the sealing member 500 in the valve cavity 110. The fixing method of the valve cover 600 and the valve body 100 is preferably welding, which has good stability and sealing. In order to facilitate the external power equipment to drive the valve core 200 to rotate, a transmission part 260 is provided on the other axial end face of the valve core 200, and the transmission part 260 can be provided with teeth for meshing along the circumference. Correspondingly, the valve cover 600 is provided with a connecting hole, and the transmission part 26 can extend to the outside of the valve cover 600 through the connecting hole and be connected to the external power equipment.

[0063] It is conceivable that the provision of the communicating hole reduces the sealing between the valve cover 600 and the valve core 200. Therefore, to enhance the sealing between the valve cover 600 and the valve core 200, the valve cover 600 is provided with an annular sealing portion on the axial end surface facing the valve core 200. The diameter of the annular sealing portion is larger than the diameter of the transmission portion 260. A sealing ring 700 is provided on the outer sleeve of the transmission portion 260 and is interference fit between the transmission portion 260 and the annular sealing portion, thereby enhancing the sealing between the transmission portion 260 and the annular sealing portion.

[0064] See also Figure 8 To enhance the structural strength of the valve core 200, a reinforcing rib 250 is provided on the valve core 200. Specifically, multiple reinforcing ribs 250 are provided. At least one reinforcing rib 250 is provided on the side of the third conducting cavity 243 facing away from the fourth conducting cavity 244. Axially, the two ends of the reinforcing rib 250 are connected to the second baffle 232 and the third baffle 233, respectively. At least one reinforcing rib 250 is provided on the side of the fourth conducting cavity 244 facing away from the third conducting cavity 243. Axially, the two ends of the reinforcing rib 250 are connected to the second baffle 232 and the third baffle 233, respectively.

[0065] It is very important that when at least one reinforcing rib 250 is provided on the side of the third conductive cavity 243 facing away from the fourth conductive cavity 244, the fourth conductive cavity 221 will have the effect of hindering the flow of fluid, so the fourth conductive cavity 221 can not be used as a conductive cavity. Similarly, the sixth conductive cavity 223 is not used as a conductive cavity. At this time, only the fifth conductive cavity 222 of the second group of conductive cavities 220 is normally connected. Correspondingly, the second group of interfaces 130 also has only two interfaces, the fifth interface 131 and the eighth interface 132, and the angle between the fifth interface 131 and the eighth interface 132 is 160°, that is, the fifth interface 131 and the eighth interface 132 can be connected through the fifth conductive cavity 222.

[0066] Along the circumference of the control valve, one of the through holes 530 is arranged adjacent to the notch 560. In one mode of the control valve, the through hole 530 adjacent to the notch 560 is closed, and the abutting rib 290 abuts against the seal 500 between the notch 560 and the through hole 530.

[0067] It should be noted that since the sealing member 500 is provided with plug-in portions 550 at both ends of the circumference, the plug-in portions 550 need to be respectively clamped in two clamping spaces, so the two plug-in portions 550 cannot be connected, that is, there must be a gap 560 between the two plug-in portions 550, and the gap 560 extends along the axial direction of the control valve. Figures 15 and 16 , the third conductive cavity 213 connects to the seventh interface 126 and the notch 560, the sixth conductive cavity 223 connects to the notch 560 and the fifth interface 131, and the notch 560 connects to the seventh interface 126 and the fifth interface 131. In other words, in this mode, the third conductive cavity 213 can connect to the seventh interface 126 and also include the notch 560. Because the notch 560 extends axially and the fifth interface 131 is located near the notch 560, the notch 560 may cause cross-flow between the seventh interface 126 and the fifth interface 131. To limit or even eliminate the occurrence of cross-flow, in this embodiment, a sealing rib 290 is provided on the side of the third conductive cavity 243 facing away from the fourth conductive cavity 244. In the axial direction, the two ends of the sealing rib 290 respectively abut against the second partition portion 232 and the third partition portion 233. In the radial direction, one end of the sealing rib 290 is connected to the third conductive cavity portion 243, and the other end abuts against the sealing member 500 between the notch 560 and the fifth port 131. In other words, the sealing rib 290 separates the notch 560 and the fifth port 131, thereby preventing fluid at the notch 560 from flowing into the fifth port 131.

[0068] It can be imagined that since each through hole 530 is connected to each interface one by one, the sealing rib 290 can separate the gap 560 and the fifth interface 131, which is equivalent to the sealing rib 290 being able to separate the gap 560 and the through hole 530 corresponding to the fifth interface 131.

[0069] See also Figure 10 The first pipe 300 and the second pipe 400 are both fixedly disposed on the outer surface of the valve body 100. Specifically, there are six first pipes 300, which are connected to the first port 121, the second port 122, the fourth port 124, the third port 125, the seventh port 126, and the fifth port 131, respectively.

[0070] Along the axial direction, the sixth port 123 and the eighth port 132 are located in the same axial direction. One second pipe 400 is provided, and the second pipe 400 can communicate with the sixth port 123 and the eighth port 132 .

[0071] It is conceivable that, on the one hand, the second pipeline 400 can merge the sixth interface 123 and the eighth interface 132 into one interface, thereby reducing the number of interfaces. In this embodiment, the control valve has eight interfaces and can be used as an eight-way valve, but since a second pipeline 400 is provided, the control valve can be used as a seven-way valve; on the other hand, the second pipeline 400 can connect one interface in the first group of interfaces 120 and one interface in the second group of interfaces 130, that is, at least some of the interfaces in the first group of interfaces 120 can not only be connected with the interfaces in the first group of interfaces 120, but can also be connected with the interfaces in the second group of interfaces 130, thereby making the connection relationship between the interfaces more varied and having better adaptability.

[0072] It is conceivable that, in other embodiments, the number of the second pipes 400 is not limited to one, and the number of interfaces that the second pipes 400 can connect to is not limited to two, but may be multiple.

[0073] It is very important that, due to limitations of existing processes, the inner wall surface of the valve body 100 forming the valve cavity 110 cannot be completely parallel to the axial direction, that is, there is a certain draft angle, which will affect the installation of the seal 500 and the valve core 200.

[0074] To facilitate installation, in this embodiment, along the axial direction, the angle between the inner surface 510 and the outer surface 520 of the seal 500 and the axial direction is 0.4°, and the diameter of the end of the seal 500 that first extends into the valve cavity 110 is smaller, and the diameter of the end that extends into the valve cavity 110 later is larger. The conical seal 500 can be more easily inserted into the valve cavity 110, thereby facilitating the installation of the seal 500.

[0075] Similarly, the shortest connecting line between the outer edge of the first partition portion 231 and the outer edge of the third partition portion 233 is defined as the connecting axis, the angle between the connecting axis and the axial direction is 0.4°, and the diameter of the end of the valve core 200 that first extends into the seal 500 is smaller, and the diameter of the end that extends into the seal 500 later is larger. The conical seal 500 can be more easily inserted into the seal 500, thereby facilitating the installation of the valve core 200.

[0076] The control valve provided by the present invention has at least one of four modes:

[0077] First working mode: the fifth interface 131 , the sixth interface 123 , and the eighth interface 132 are connected, the first interface 121 , the second interface 122 , and the seventh interface 126 are connected, and the fourth interface 124 is connected to the third interface 125 ;

[0078] It should be noted that if the second pipeline 400 is not set, the control valve can be used as an eight-way valve. If the sixth interface 123 and the eighth interface 132 are merged into one interface through the second pipeline 400, although the eight interfaces are connected, the control valve can actually be used as a seven-way valve.

[0079] Second working mode: the first interface 121 is connected to the seventh interface 126 , the second interface 122 is connected to the sixth interface 123 , and the fourth interface 124 is connected to the third interface 125 ;

[0080] Third working mode: the first interface 121, the second interface 122, and the third interface 125 are connected, and the fourth interface 124 is connected to the sixth interface 123;

[0081] Fourth working mode: the first interface 121 , the second interface 122 , and the sixth interface 123 are connected, and the fourth interface 124 is connected to the third interface 125 .

[0082] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. For example, with respect to the directional definitions of “front”, “back”, “left”, “right”, “up” and “down”, although this specification has described the present invention with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified, combined or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A control valve, characterized in that: The control valve comprises a valve core (200) and a sealing member (500); the sealing member (500) has a notch (560) and a through hole (530); and along the circumference of the control valve, the notch (560) and the through hole (530) are spaced apart. At least a portion of the valve core (200) is rotatably disposed within the sealing member (500), and the valve core (200) includes an abutment rib (290). In any mode of the control valve, the abutment rib (290) abuts against the sealing member (500) between the notch (560) and the through hole (530).

2. The control valve according to claim 1, characterized in that The valve core (200) comprises a conducting cavity (240) and a plurality of partition portions (230) spaced apart along the axial direction of the control valve, at least one conducting cavity (240) is provided between adjacent partition portions (230), and both ends of the conducting cavity (240) have the abutting ribs (290).

3. The control valve according to any one of claims 1 to 2, characterized in that: The valve core (200) includes a conducting cavity (240), and along the circumference of the control valve, the notch (560) and the through hole (530) are located between the two ends of the conducting cavity (240); one end of the abutting rib (290) is connected to the conducting cavity (240), and the other end abuts against the sealing member (500) between the notch (560) and the through hole (530).

4. The control valve according to claim 1, wherein: Along the circumference of the control valve, one of the through holes (530) is arranged adjacent to the notch (560). In one mode of the control valve, the through hole (530) arranged adjacent to the notch (560) is closed, and the abutting rib (290) abuts against the sealing member (500) between the notch (560) and the through hole (530).

5. The control valve according to any one of claims 1 to 3, characterized in that: The control valve further comprises a valve body (100), the valve body (100) comprising a first group of interfaces (120) and a second group of interfaces (130); the first group of interfaces (120) comprises a first interface (121), a second interface (122), a sixth interface (123), a fourth interface (124), a third interface (125), and a seventh interface (126) which are sequentially spaced along the circumference of the control valve; The second group of interfaces (130) comprises a fifth interface (131) and an eighth interface (132) arranged at intervals along the circumference of the control valve, and the angle between the fifth interface (131) and the eighth interface (132) is different from the angle between the interfaces of the first group of interfaces (120).

6. The control valve according to claim 5, characterized in that The control valve further comprises six first pipes (300) and one second pipe (400) fixed on the outer surface of the valve body (100), and each of the first pipes (300) is connected to the first interface (121), the second interface (122), the fourth interface (124), the third interface (125), the seventh interface (126), and the fifth interface (131) in a one-to-one correspondence; The sixth interface (123) and the eighth interface (132) are located in the same axial direction, and the second pipe (400) is connected to the sixth interface (123) and the eighth interface (132).

7. The control valve according to any one of claims 2 to 3, characterized in that: The partition portion (230) includes a first partition portion (231), a second partition portion (232), and a third partition portion (233); the conductive cavity portion (240) includes a first conductive cavity portion (241), a second conductive cavity portion (242), a third conductive cavity portion (243), and a fourth conductive cavity portion (244); the first partition portion (231), the second partition portion (232), and the third partition portion (233) are spaced apart along the axial direction of the control valve; The first conducting cavity portion (241) and the second conducting cavity portion (242) are fixedly arranged between the first partition portion (231) and the second partition portion (232), and separate the space between the first partition portion (231) and the second partition portion (232) into a first group of conducting cavities (210); The third conducting cavity portion (243) and the fourth conducting cavity portion (244) are fixedly arranged between the second partition portion (232) and the third partition portion (233), and separate the space between the second partition portion (232) and the third partition portion (233) into a second group of conducting cavities (220).

8. The control valve according to claim 7, characterized in that The first group of conducting cavities (210) comprises a first conducting cavity (211), a second conducting cavity (212), and a third conducting cavity (213) which are not connected to each other; both ends of the first conducting cavity portion (241) and the second conducting cavity portion (242) are located at the edges of the first partition portion (231) and the second partition portion (232); the first conducting cavity portion (241), the first partition portion (231), and the second partition portion (232) surround at least a portion of the first conducting cavity (211); the first conducting cavity portion (241), the second conducting cavity portion (242), the first partition portion (231), and the second partition portion (232) surround at least a portion of the second conducting cavity (212); the second conducting cavity portion (242), the first partition portion (231), and the second partition portion (232) surround at least a portion of the third conducting cavity (213); The second group of conducting cavities (220) includes a fourth conducting cavity (221), a fifth conducting cavity (222), and a sixth conducting cavity (223) that are not connected to each other; both ends of the third conducting cavity portion (243) and the fourth conducting cavity portion (244) are located at the edges of the second partition portion (232) and the third partition portion (233); the third conducting cavity portion (243), the second partition portion (232), and the third partition portion (233) surround at least a portion of the fourth conducting cavity (221); the third conducting cavity portion (243), the fourth conducting cavity portion (244), the second partition portion (232), and the third partition portion (233) surround at least a portion of the fifth conducting cavity (222); and the fourth conducting cavity portion (244), the second partition portion (232), and the third partition portion (233) surround at least a portion of the sixth conducting cavity (223).

9. The control valve according to claim 8, characterized in that The shortest connecting line between the outer edge of the first partition portion (231) and the outer edge of the third partition portion (233) is defined as a connecting axis, and the angle between the connecting axis and the axial direction is 0.4°; the sealing member (500) has an inner surface (510) and an outer surface (520), and the angles between the inner surface (510) and the outer surface (520) and the axial direction are both 0.4°.

10. The control valve according to claim 9, characterized in that The valve core (200) further includes a plurality of reinforcing ribs (250), wherein the reinforcing ribs (250) are arranged on the side surfaces of the third conducting cavity portion (243) and the fourth conducting cavity portion (244) facing away from each other, and the reinforcing ribs (250) are also connected to the second partition portion (232) and the third partition portion (233).

11. The control valve according to claim 7, wherein: The first conducting cavity (241) includes a first end and a second end, the third conducting cavity (243) includes a fifth end and a sixth end, the first end and the fifth end are located in the same axial direction, and the second end and the sixth end are located in the same axial direction; The second conductive cavity (242) includes a third end and a fourth end, the fourth conductive cavity (244) includes a seventh end and an eighth end, the third end and the seventh end are located on the same axial direction, and the fourth end and the eighth end are located on the same axial direction.

12. The control valve according to any one of claims 5 to 11, characterized in that: The control valve includes at least one of four modes: First working mode: the fifth interface (131), the sixth interface (123), and the eighth interface (132) are connected, the first interface (121), the second interface (122), and the seventh interface (126) are connected, and the fourth interface (124) is connected to the third interface (125); Second working mode: the first interface (121) is in communication with the seventh interface (126), the second interface (122) is in communication with the sixth interface (123), and the fourth interface (124) is in communication with the third interface (125); Third working mode: the first interface (121), the second interface (122), and the third interface (125) are connected, and the fourth interface (124) is connected to the sixth interface (123); Fourth working mode: the first interface (121), the second interface (122), and the sixth interface (123) are connected, and the fourth interface (124) is connected to the third interface (125).

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