Intercepting valve head, valve and valve assembly

Abstract

The utility model relates to the technical field of valves, in particular to a shutoff valve head, a valve and a valve assembly, the shutoff valve head comprises a first main body part and a second main body part, and the second main body part is arranged on the first main body part; the second main body part has a cylinder structure, and a notch part is arranged on the side wall of the second main body part; one end, close to the first main body part, of the notch part is provided with a reduction part. According to the shutoff valve head, the fluid flow is adjusted through the opening length of the notch part relative to the valve element, when the opening degree of the valve is small, the flow is adjusted through the reduction part, the adjusting precision of the flow section is remarkably improved, and the flow can be accurately adjusted under the condition that the opening degree of the valve using the shutoff valve head is small.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, in particular to a stop valve head, a valve and a valve assembly. BACKGROUND

[0002] The stop valve is a valve for controlling fluid flow by changing the throttling section or the throttling length. The stop valve is widely used in many fields. The existing technology is common in adjusting fluid flow as the most basic function of the stop valve. However, the existing stop valve has poor accuracy when adjusting fluid flow. When the valve opening is opened, it is difficult to further accurately control the fluid flow. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide a stop valve head, a valve and a valve assembly to solve the technical problem of poor accuracy of the existing stop valve in the prior art to some extent.

[0004] The present application provides a stop valve head, comprising:

[0005] A first body part;

[0006] A second body part, which is arranged on the first body part;

[0007] The second body part has a cylindrical structure, and the side wall of the second body part is provided with a notch part;

[0008] The notch part is in the shape of a long strip, and one end of the notch part close to the first body part is provided with a tapering part.

[0009] In the above technical solution, further, along the direction from the second body part to the first body part, the width of the tapering part gradually decreases.

[0010] In any of the above technical solutions, further, the number of the notch parts is at least one. When the number of the notch parts is more than one, the plurality of notch parts are distributed at intervals around the axis of the second body part.

[0011] In any of the above technical solutions, further, the diameter of the first body part is smaller than the diameter of the second body part, and the first body part and the second body part are coaxially arranged.

[0012] The present application also provides a valve comprising the stop valve head of any of the above technical solutions, thus having all the beneficial technical effects of the stop valve head, which will not be repeated here.

[0013] In the above technical solution, further, the valve further comprises:

[0014] A valve body, and the stop valve head is arranged in the valve body;

[0015] a valve rod, the valve rod being arranged in the valve body and capable of reciprocating along the axial direction of the valve body;

[0016] One end of the valve rod is provided with a connecting head, the connecting head being arranged in the valve body and connected with the first body part of the shut-off valve head.

[0017] In any of the above technical solutions, further, the valve body is internally provided with a valve core plate, the valve core plate separating the internal space of the valve body into a first cavity and a second cavity;

[0018] The valve core plate is provided with a communication channel, the shut-off valve head being arranged in the communication channel and capable of reciprocating relative to the communication channel.

[0019] In any of the above technical solutions, further, the number of the shut-off valve heads is at least one;

[0020] When the number of the shut-off valve heads is more than one, all the shut-off valve heads move synchronously with the valve rod.

[0021] In any of the above technical solutions, further, the valve body is provided with a first interface and a second interface, one of the first interface and the second interface being in communication with the first cavity and the other being in communication with the second cavity;

[0022] The number of the first interfaces is one, and the number of the second interfaces is more than the number of the interfaces; or, the number of the second interfaces is one, and the number of the first interfaces is more than the number of the second interfaces.

[0023] The application also provides a valve assembly comprising the valve according to any of the above technical solutions, thus having all the beneficial technical effects of the shut-off valve head, which will not be described herein again.

[0024] Compared with the prior art, the application has the following beneficial effects:

[0025] The shut-off valve head provided by the application comprises a first body part and a second body part, the second body part being arranged in the first body part; the second body part has a cylindrical structure, and the side wall of the second body part is provided with a notch part; the notch part is in a strip shape, and one end of the notch part close to the first body part is provided with a tapering part.

[0026] The shut-off valve head provided by the application adjusts the fluid flow rate relative to the opening length of the valve core through the notch part, and adjusts the flow rate through the tapering part when the valve opening is small, thus significantly improving the adjustment accuracy of the flow cross section, so that the valve using the shut-off valve head can also accurately adjust the flow rate when the opening is small.

[0027] The valve provided by the present application comprises the above-mentioned stop valve head, and thus the flow regulating precision of the valve at small opening degree can be improved by the stop valve head.

[0028] The valve assembly provided by the present application further enriches the number of flow paths on the basis of the above-mentioned valve, thereby expanding the application range of the valve assembly. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0030] Figure 1 A structural schematic view of the stop valve head provided by the first embodiment of the present application;

[0031] Figure 2 Another structural schematic view of the stop valve head provided by the first embodiment of the present application;

[0032] Figure 3 A structural schematic view of a valve provided by the second embodiment of the present application;

[0033] Figure 4 Another structural schematic view of the valve provided by the second embodiment of the present application;

[0034] Figure 5 A structural schematic view of Figure 4 A sectional view along A-A;

[0035] Figure 6 A partial structural schematic view of the valve provided by the second embodiment of the present application;

[0036] Figure 7 Another partial structural schematic view of the valve provided by the second embodiment of the present application;

[0037] Figure 8 A structural schematic view of another valve provided by the third embodiment of the present application;

[0038] Figure 9 A structural schematic view of a valve assembly provided by the fourth embodiment of the present application.

[0039] LIST OF REFERENCE NUMERALS

[0040] 100 - intercept valve head, 1 - first main body part, 2 - second main body part, 201 - notch part, 202 - reduced part, 3 - connecting port, a - first direction, 200 - two-way valve, 4 - valve body, 401 - valve core plate, 402 - first cavity, 403 - second cavity, 5 - valve rod, 501 - connecting head, 502 - sliding groove, 6 - limiting rod, 7 - connecting member, 8 - first interface, 9 - second interface, 10 - driving assembly, 1001 - speed reducer, 1002 - driving magnet group, 1003 - motor shell, 1004 - power interface, 300 - three-way valve, 11 - first valve rod, 12 - second valve rod, 13 - connecting rod, 14 - first valve core plate, 15 - second valve core plate, 16 - cavity one, 17 - valve core cavity, 18 - cavity two, 19 - first intercept valve head, 20 - second intercept valve head, 21 - first connecting head, 22 - second connecting head, 400 - valve assembly, 23 - first valve body, 24 - second valve body, 25 - third valve rod, 26 - third intercept valve head, 27 - fourth intercept valve head, 28 - first connecting rod, 29 - second connecting rod, 30 - third connecting head, 31 - fourth connecting head. DETAILED DESCRIPTION

[0041] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0042] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0043] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] The following refers to Figures 1 to 9 The valve head, the valve and the valve assembly described in the embodiments of the present application are described.

[0047] Embodiment one, see Figure 1 and Figure 2 The embodiments of the present application provide a valve head, the valve head 100 is used for a valve, especially suitable for a stop valve. The valve head 100 includes a first body part 1 and a second body part 2, the second body part 2 is arranged on the first body part 1, or the second body part 2 is connected with the first body part 1, preferably, the first body part 1 and the second body part 2 are integrally processed and formed to have an integral structure.

[0048] The first body part 1 has a cylindrical structure, the first body part 1 is provided with a connecting port 3, preferably, the connecting port 3 is a hole structure arranged at the center of the first body part 1, preferably, the connecting port 3 is coaxially arranged with the first body part 1, the connecting port 3 is used for connecting with the connecting head 501, and the connecting mode between the connecting port 3 and the connecting head 501 can be but not limited to riveting.

[0049] The diameter of the first body part 1 is smaller than the diameter of the second body part 2, so that a stepped part is formed between the first body part 1 and the second body part 2, which facilitates the assembly of the valve head 100 on the valve stem 5 of the stop valve, so that the valve head 100 can move synchronously with the valve stem 5, and the specific connection mode can be seen from the following embodiment.

[0050] The second body part 2 has a cylindrical structure, preferably, the second body part 2 is coaxially arranged with the first body part 1, one end of the second body part 2 close to the first body part 1 is provided with an annular cover, and the first body part 1 is arranged on the annular cover. The side wall of the second body part 2 is provided with a notch part 201, the notch part 201 is in a strip shape, the length direction of the notch part 201 extends along the height direction of the second body part 2, one end of the notch part 201 extends to one end of the second body part 2 away from the first body part 1, the other end of the notch part 201 extends to the annular cover and approaches the first body part 1, and the notch part 201 forms a reduced part 202 at the end close to the first body part 1. As Figure 2As shown, the direction from bottom to top, that is, the direction from the second body part 2 to the first body part 1 is defined as the first direction a, the notch part 201 has a first width, the maximum width of the tapering part 202 is the first width, along the first direction a, the width of the tapering part 202 gradually decreases, so that the tapering part 202 as a whole has a shape of triangle or arc or arch, etc. with a pointed end or pointed end tendency compared with the notch part 201.

[0051] Further, the number of the notch part 201 is at least one, the inner and outer spaces of the second body part 2 are communicated at the notch part 201 and the tapering part 202 for fluid to pass, it is to be noted that the fluid mentioned in the embodiment can be gas or liquid. Preferably, in the embodiment, the number of the notch part 201 is multiple, which can be but not limited to 4, the multiple notch parts 201 are arranged at equal intervals around the axis of the second body part 2, each notch part 201 is used for fluid to pass, and each notch part 201 is provided with the tapering part 202.

[0052] In use, the shut-off valve head 100 is installed to the valve stem 5 of the valve, as the valve stem 5 is screwed clockwise or counterclockwise, the valve stem 5 can reciprocate relative to the valve body 4 of the stop valve, the shut-off valve head 100 moves synchronously with the valve stem 5, the valve core of the valve body 4 adjusts the cross section by different degrees of shielding the length of the notch part 201, thereby adjusting the fluid flow, when the opening of the stop valve is small, the local part of the valve body 4 corresponds to the tapering part 202, at this time, continue to screw the valve stem 5, the tapering part 202 moves relative to the local part of the valve body 4, thereby fine adjustment is performed, thereby improving the control accuracy of the fluid flow.

[0053] In summary, the shut-off valve head 100 provided by the application can be used for existing valves, the fluid flow is adjusted by the opening length of the notch part 201 relative to the valve core, when the opening of the valve is small, the flow is adjusted by the tapering part 202, which significantly improves the adjustment accuracy of the flow cross section, so that the valve using the shut-off valve head 100 can also accurately adjust the flow when the opening is small.

[0054] Embodiment two, see Figures 3 to 7As shown, the embodiment of the present application provides a valve, in particular, the valve provided by the embodiment is a two-way valve 200. The valve comprises the shutoff valve head 100 of the above-mentioned embodiment, a valve body 4, a valve rod 5, and an adjusting knob. The inside of the valve body 4 is hollow to form a valve cavity, the valve cavity is provided with a mounting port, the adjusting knob is arranged in the mounting port, the valve rod 5 is arranged in the valve cavity, one end of the valve rod 5 is connected with the adjusting knob, and the other end of the valve rod 5 is provided with a connecting head 501. The connecting head 501 is provided with a sliding groove 502, the length of the sliding groove 502 extends along the length direction of the valve rod 5, the cavity inner wall of the valve cavity is provided with a limiting rod 6, one end of the limiting rod 6 is fixedly connected with the inner wall of the valve cavity, and the other end of the limiting rod 6 is located in the sliding groove 502.

[0055] Preferably, the inside of the adjusting knob is provided with a connecting member 7, and the end of the valve rod 5 away from the connecting head 501 is threadedly connected with the connecting member 7. When the adjusting knob is screwed, the connecting member 7 rotates synchronously with the adjusting knob. The limiting rod 6 is connected with the connecting head 501 to limit the rotary motion of the connecting head 501 and the valve rod 5, so that the rotary motion of the connecting member 7 can be converted into the linear motion of the valve rod 5. The connecting head 501 moves synchronously with the valve rod 5, and the first main body part 1 of the above-mentioned shutoff valve head 100 is connected with the connecting head 501, so that the shutoff valve head 100 can move synchronously with the valve rod 5 and the connecting head 501. In the movement process, the position of the shutoff valve head 100 relative to the valve body 4 changes, and the exposed length of the notch part 201 changes, so as to realize the opening degree adjustment.

[0056] The inside of the valve cavity is provided with a valve core plate 401, the edge of the valve core plate 401 is connected with the inner wall of the valve cavity, and the valve core plate 401 divides the valve cavity into two cavities which are independent of each other, i.e., a first cavity 402 and a second cavity 403. Figure 5 In the state shown, the first cavity 402 is located above the second cavity 403, the first cavity 402 serves as an inflow cavity, and the second cavity 403 serves as an outflow cavity. A valve core hole is arranged at the center position of the valve core plate 401, and the second main body part 2 of the shutoff valve head 100 is arranged in the valve core hole. When the shutoff valve head 100 moves with the valve rod 5, the second main body part 2 reciprocates relative to the valve core plate 401. In the movement process, the notch part 201 rises or falls relative to the valve core hole, so that the length of the notch part 201 located in the inflow cavity changes, thereby adjusting the flow of fluid. Figure 5 In the state shown, the reducing part 202 is arranged close to the valve core hole.

[0057] The side wall of the valve body 4 is provided with a first interface 8 and a second interface 9, one of which is an inlet and the other is an outlet, for example, the first interface 8 is connected with the first cavity 402 as an inlet, and the second interface 9 is connected with the second cavity 403 as an outlet, the fluid medium flows into the first cavity 402 through the first interface 8, when the tip of the reduced part 202 is not higher than the upper surface of the valve core plate 401, at this time, the valve is in a closed state, the first cavity 402 is not connected with the second cavity 403; when the adjusting knob is screwed to make the intercepting valve head 100 rise, the reduced part 202 and the notch part 201 gradually rise, so that the fluid in the first cavity 402 can flow into the second main body part 2 through the reduced part 202 and the notch part 201 and flow into the second cavity 403, and the fluid in the second cavity 403 can flow out through the second interface 9.

[0058] Further, the valve further comprises a driving assembly 10, the driving assembly 10 is arranged on the adjusting knob, or the adjusting assembly and the connection, or, the driving assembly 10 acts on the connecting member 7, by arranging the driving assembly 10, the adjusting knob or the connecting member 7 can be driven to rotate in an electrically controlled manner. The driving assembly 10 comprises: a motor, a speed reducer 1001 and a driving magnet group 1002, the speed reducer 1001 is connected with the motor, the speed reducer 1001 has a driving shaft, the driving magnet group 1002 is divided into an inner ring layer and an outer ring layer, the outer ring layer surrounds the inner ring layer and is arranged at intervals, the inner ring layer and the outer ring layer each comprise a plurality of magnets, the connecting member 7 is located in the inner ring layer, the inner ring layer surrounds the connecting member 7, the driving shaft, the inner ring layer and the outer ring layer are coaxially arranged, the driving shaft extends towards the connecting member 7, at this time, the connecting member 7 can act as a driven part, when the motor and the speed reducer 1001 are powered on, the driving shaft rotates, under the coupling action of the driving magnet group 1002, the connecting member 7 rotates synchronously, thereby realizing the lifting of the valve stem 5. It should be noted that this part of the principle is a mature technology in the prior art, and those skilled in the art can fully understand it.

[0059] The driving assembly 10 further comprises a motor shell 1003 and a power interface 1004, the power interface 1004 is arranged on the motor shell 1003, the power interface 1004 is used for supplying power to the motor and the speed reducer 1001 and other electrical components, the motor shell 1003 covers the motor, the speed reducer 1001 and the driving magnet group 1002, and the motor shell 1003 is connected with the valve body 4. It should be noted that the speed reducer 1001 in the embodiment can be a planetary speed reducer 1001.

[0060] It can be seen that the valve provided in the embodiment can improve the flow regulation accuracy of the valve at small opening degree by using the above-mentioned intercepting valve head 100.

[0061] Embodiment three, see Figure 8As shown, the embodiment of the present application provides another valve, in particular, the valve provided by the embodiment is a three-way valve 300, which comprises the shutoff valve head 100 and the valve body 4, the first valve rod 11, the second valve rod 12 and the adjusting knob (not shown), the valve body 4 is cylindrical, and along the axial direction of the valve body 4, the inside of the valve body 4 is spaced apart to be provided with the first valve core plate 14 and the second valve core plate 15, and the two valve core plates 401 sequentially form a cavity one 16, a valve core cavity 17 and a cavity two 18 along the axial direction of the inside of the valve body 4. The side wall of the valve body 4 is provided with the first interface 8 and the second interface 9, the number of the first interface 8 is one, the number of the second interface 9 is two, the first interface 8 communicates with the valve core cavity 17, one of the second interfaces 9 communicates with the cavity one 16, and the other second interface 9 communicates with the cavity two 18. In this embodiment, the first interface 8 can be used as an inlet, and the two second interfaces 9 are both outlets, at this time, the valve is a diverging valve, or the first interface 8 is used as an outlet, and the two second interfaces 9 are both inlets, at this time, the valve is a converging valve.

[0062] The first valve rod 11 is arranged in the valve body 4 through one end of the valve body 4, and the second valve rod 12 is arranged in the valve body 4 through the other end of the valve body 4, and the first valve rod 11 and the second valve rod 12 are coaxially arranged with the valve body 4. Preferably, one end of the first valve rod 11 is arranged out of the valve body 4 through one end of the valve body 4, and the end of the first valve rod 11 located outside the valve body 4 is threadedly connected with a connecting sleeve, the connecting sleeve is fixedly connected with an adjusting knob (not shown in the figure), and when the adjusting knob is screwed, the connecting sleeve rotates synchronously with the adjusting knob; one end of the second valve rod 12 is arranged out of the valve body 4 through the other end of the valve body 4 and is threadedly connected with another connecting sleeve, the connecting sleeve is connected with another adjusting knob (not shown in the figure), and when the adjusting knob is screwed, the connecting sleeve can rotate synchronously with the adjusting knob.

[0063] In this embodiment, the number of the shutoff valve head 100 is two, which are the first shutoff valve head 19 and the second shutoff valve head 20. One end of the first valve rod 11 located in the valve body 4 is provided with a first connecting head 21, the first shutoff valve head 19 is connected with the first connecting head 21, one end of the second valve rod 12 located in the valve body 4 is provided with a second connecting head 22, the second shutoff valve head 20 is connected with the second connecting head 22, and the first shutoff valve head 19 and the second shutoff valve head 20 are connected through the connecting rod 13, and the length of the connecting rod 13 is greater than the distance between the first valve core plate 14 and the second valve core plate 15.

[0064] The first connecting head 21 is located in the cavity one 16, the second connecting head 22 is located in the cavity two 18, the side wall of the first connecting head 21 is provided with a sliding groove 502, the length of the sliding groove 502 extends along the length direction of the valve rod 5, the inner wall of the cavity one 16 is provided with a limiting rod 6, one end of the limiting rod 6 is fixedly connected with the inner wall of the cavity one 16, the other end of the limiting rod 6 is located in the sliding groove 502; correspondingly, the side wall of the second connecting head 22 is also provided with a sliding groove 502, the length of the sliding groove 502 extends along the length direction of the valve rod 5, the inner wall of the cavity two 18 is fixedly provided with another limiting rod 6, the end of the limiting rod 6 is located in the sliding groove 502 on the second connecting head 22, so that the valve rod 5 cannot rotate, and because the two ends of the valve rod 5 are respectively threadedly connected with the connecting sleeves, when one of the adjusting knobs is screwed, the rotating movement of the connecting sleeve can be converted into the linear movement of the valve rod 5, so that the valve rod 5 can reciprocate along the axial direction.

[0065] In the state as shown in the figure, Figure 8 In the state as shown in the figure, part of the first intercepting valve head 19 is located in the valve core cavity 17, and the other part is located in the cavity one 16, the first valve core plate 14 blocks the notch part 201 of the first intercepting valve head 19, part of the second intercepting valve head 20 is located in the valve core cavity 17, and the other part is located in the cavity two 18, the second valve core plate 15 blocks the notch part 201 of the second intercepting valve head 20, and at this time, the lengths of the first intercepting valve head 19 and the second intercepting valve head 20 located in the valve core cavity 17 are the same, at this time, the cavity one 16 and the cavity two 18 are respectively communicated with the valve core cavity 17, and the openings of the cavity one 16 and the second cavity 403 each account for 50%. When one end or both ends of the adjusting knob is screwed, the first valve rod 11 and the second valve rod 12 move to the left, the first intercepting valve head 19 and the second intercepting valve head 20 are synchronously moved to the left, part or all of the notch part 201 of the first intercepting valve head 19 enters the cavity one 16, when the two valve rods 5 move to the left to the limit position, the notch part 201 and the reduced part 202 of the first intercepting valve head 19 are all located in the cavity, and the notch part 201 and the reduced part 202 of the second intercepting valve head 20 are all moved to the valve core cavity 17, at this time, the first interface 8, the cavity one 16 and the left second interface 9 are sequentially communicated, the cavity two 18 is not communicated with the valve core cavity 17, and at the same time, the first interface 8 is not communicated with the right second interface 9, when the adjusting knob is screwed to synchronously move the two valve rods 5 to the right, the cavity two 18 is communicated with the valve core cavity 17, and the cavity one 16 is not communicated with the valve core cavity 17.

[0066] It should be noted that in the present embodiment, the first shutoff valve head 19 can be connected to the first valve rod 11 as described above, the second shutoff valve head 20 can be connected to the second valve rod 12, and the connecting rod 13 can be arranged between the first shutoff valve head 19 and the second shutoff valve head 20 to connect the first shutoff valve head 19 and the second shutoff valve head 20, so that the first shutoff valve head 19 and the second shutoff valve head 20 can move synchronously. Alternatively, the same valve rod 5 can pass through the first connecting head 21, the first shutoff valve head 19, the second shutoff valve head 20, and the second connecting head 22.

[0067] Further, the valve also includes a driving assembly 10 (not shown in the figure), and in the present embodiment, the number of the driving assembly 10 is two. One of the driving assembly 10 is arranged on the adjusting knob of the first valve rod 11 extending to the outside of the valve body 4, and the other driving assembly 10 is arranged on the adjusting knob of the second valve rod 12 extending to the outside of the valve body 4. The driving assembly 10 in the present embodiment has the same structure and installation method as the driving assembly 10 in the second embodiment described above, which can be fully understood by those skilled in the art, and the same or similar contents will not be described here.

[0068] It can be seen that the shutoff valve head 100 provided in the present embodiment enriches the inflow of fluid, thereby increasing the application range of the valve, and the valve also has the advantage of high adjustment precision.

[0069] Embodiment Four, referring to Figure 9 As shown in the figure, the present application provides a valve assembly 400, and the valve assembly 400 includes at least two valves in the third embodiment described above.

[0070] Preferably, the valve assembly 400 comprises two three-way valves 300 in the third embodiment, and the valve assembly 400 is a two-in-four-out valve. The valve assembly 400 comprises a first valve body 23, a second valve body 24, a first valve rod 11, a second valve rod 12, a third valve rod 25, and a plurality of shut-off valve heads 100. The first valve body 23 is coaxially arranged with the second valve body 24, and the specific structure of the first valve body 23 and the second valve body 24 can refer to the related description in the above embodiments. In this embodiment, the number of shut-off valve heads 100 is four, which are a first shut-off valve head 19, a second shut-off valve head 20, a third shut-off valve head 26, and a fourth shut-off valve head 27. The first valve rod 11 is arranged in the first valve body 23, and the first valve rod 11 is coaxially arranged with the first valve body 23. One end of the first valve rod 11 is located outside the first valve body 23, and the other end of the first valve rod 11 extends into the first valve body 23. The end of the first valve rod 11 located in the first valve body 23 is provided with a first connecting head 21 and the first shut-off valve head 19. The second valve rod 12 is arranged in the first valve body 23 and the second valve body 24 at the same time. One part of the second valve rod 12 is located in the first valve body 23, and the other part of the second valve rod 12 is located in the second valve body 24. The end of the second valve rod 12 located in the first valve body 23 is provided with a second connecting head 22 and the second shut-off valve head 20. The first shut-off valve head 19 and the second shut-off valve head 20 are connected by a first connecting rod 28. The length of the first connecting rod 28 is greater than the distance between the first valve core plate 14 and the second valve core plate 15 in the first valve body 23. The end of the second valve rod 12 located in the second valve body 24 is provided with a third connecting head 30 and the third shut-off valve head 26. The third valve rod 25 is arranged in the second valve body 24. One end of the third valve rod 25 is located outside the second valve body 24, and the other end of the third valve rod 25 is located in the second valve body 24. The end of the third valve rod 25 located in the second valve body 24 is provided with a fourth connecting head 31 and the fourth shut-off valve head 27. The third shut-off valve head 26 and the fourth shut-off valve head 27 are connected by a second connecting rod 29. The length of the second connecting rod 29 is greater than the distance between the first valve core plate 14 and the second valve core plate 15 in the second valve body 24. The first valve rod 11, the first connecting rod 28, the second valve rod 12, the second connecting rod 29, and the third valve rod 25 are coaxially arranged.

[0071] The valve assembly 400 further comprises a first adjusting knob and a second adjusting knob (not shown in the figure). The first adjusting knob is arranged at the end of the first valve rod 11 located outside the first valve body 23, and the second adjusting knob is arranged at the end of the second valve rod 12 located outside the second valve body 24.

[0072] Further, the valve assembly 400 further comprises two drive assemblies 10 (not shown in the figure), one of which is arranged at the first adjusting knob, and the other of which is arranged at the second adjusting knob. The drive assembly 10 in the embodiment has the same structure and installation mode as the drive assembly 10 in the above-mentioned embodiment, and those skilled in the art can fully understand it, and thus the same and similar contents will not be described in detail.

[0073] The valve assembly 400 provided in the embodiment can make the first shut-off valve head 19, the second shut-off valve head 20, the third shut-off valve head 26 and the fourth shut-off valve head 27 synchronously reciprocate along the axial direction of the valve stem 5 by adjusting the first adjusting knob and / or the second adjusting knob, so as to adjust the opening degree of each interface, so that the valve assembly 400 has multiple flow paths.

[0074] It should be noted that the number of the valve assembly 400 containing the above-mentioned three-way valve 300 is not limited to two, and those skilled in the art can fully increase the number of the valve according to the use scene to increase the flow path of the valve assembly 400.

[0075] Further, it should be noted that the valve assembly 400 can also be used as a four-in-two-out valve.

[0076] In summary, the valve assembly 400 further enriches the number of flow paths on the basis of the above-mentioned valve, thereby expanding the application range of the valve assembly 400.

[0077] Finally, it should be noted that: the above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above-mentioned embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A stop valve head, characterized in that The application relates to a valve head, comprising: a first body part; a second body part arranged on the first body part; the second body part has a cylindrical structure, and a side wall of the second body part is provided with a notch part; the notch part is in a strip shape, and one end of the notch part close to the first body part is provided with a tapering part.

2. The intercepting valve head according to claim 1, characterized in that The tapering part gradually decreases in width along a direction from the second body part to the first body part.

3. The intercepting valve head according to claim 1, characterized in that The number of the notch parts is at least one, and when the number of the notch parts is more than one, the notch parts are distributed at intervals around an axis of the second body part.

4. The intercepting valve head of claim 1, wherein, The diameter of the first body part is smaller than that of the second body part, and the first body part is coaxially arranged with the second body part.

5. A valve, characterized by The application further relates to a valve comprising the valve head according to any one of claims 1 to 4. The valve further comprises: a valve body, wherein the valve head is arranged in the valve body; a valve rod arranged in the valve body and capable of reciprocating along an axial direction of the valve body; one end of the valve rod is provided with a connecting head arranged in the valve body and connected with the first body part of the valve head.

6. The valve of claim 5, wherein The connecting head is provided with a sliding groove extending along a length direction of the valve rod.

7. The valve of claim 5, wherein An inner part of the valve body is provided with a valve core plate, which divides an inner space of the valve body into a first cavity and a second cavity; the valve core plate is provided with a communication channel, and the valve head is arranged in the communication channel and capable of reciprocating relative to the communication channel.

8. The valve of claim 5, wherein The number of the valve heads is at least one; when the number of the valve heads is more than one, all the valve heads move synchronously with the valve rod.

9. The valve of claim 7, wherein The valve body is provided with a first interface and a second interface, one of the first interface and the second interface is in communication with the first cavity, and the other is in communication with the second cavity; the number of the first interface is one, and the number of the second interface is more than that of the interface; or the number of the second interface is one, and the number of the first interface is more than that of the second interface.

10. A valve assembly comprising: The application further relates to a valve comprising at least two valve bodies according to claim 9.

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