A fluid regulating valve

Abstract

This invention discloses a fluid regulating valve, belonging to the field of fluid regulating valves, comprising a valve body and valve assemblies. The valve body contains an inner cylinder with a first cavity and a second cavity inside. An outer cavity is formed between the inner wall of the valve body and the outer wall of the inner cylinder, and the outer cavity communicates with both the first and second cavities. Two valve assemblies are respectively disposed on the inner cylinder, one between the first cavity and the outer cavity, and the other between the second cavity and the outer cavity. The valve assemblies adjust the communication area between the first cavity or the second cavity and the outer cavity. This invention groups the multiple cavities within the valve body, allowing different groups of inner cavities to connect to the outer cavity through different communication interfaces. The two moving plates independently control the two groups of cavities, eliminating torque transmission caused by frictional contact between the two moving plates, preventing unintended follow-up movements, and improving the precise control of the flow state and flow rate in different pathways.

Description

Technical Field

[0001] This utility model relates to the field of fluid regulating valve technology, and in particular to a fluid regulating valve. Background Technology

[0002] Fluid control valves are key components used to control the switching or distribution of fluids between multiple channels, and are widely used in many fields such as HVAC, water treatment, industrial process control, and medical devices. Traditional fluid control valves, such as plug valves or ball valves, typically achieve the opening and closing of the flow path and switching by aligning or misaligning the flow channels on the valve body through the rotation of a single valve core (such as a conical plug, cylindrical plug, or ball).

[0003] Currently, some fluid control valves employ a design with fixed and moving vanes working together. The two moving vanes rotate in opposite directions through mirror-sealed contact, connecting different through-holes on the fixed and moving vanes to control the opening and closing of each water passage and the flow rate within each passage. However, the drawback of these valves is that they cannot simultaneously control the opening and closing of multiple water passages and their flow rates; they can only control the opening and closing of a single passage and its flow rate. Some fluid control valves also use a dual-vane design. These dual-vane vanes rotate in opposite directions or together through mirror-sealed contact, achieving synchronous control of the opening and closing of multiple water passages and their flow rates. However, this dual-vane design has a problem: because the two vanes are in mirror-sealed contact, when one vane is rotated, the other vane will also rotate due to friction between them, making it difficult to achieve precise synchronous control of different passages. Utility Model Content

[0004] In view of this, this utility model proposes a fluid regulating valve to solve the problem that the current dual-acting vane design is difficult to achieve accurate synchronous control of different channels.

[0005] The technical solution of this utility model is implemented as follows: This utility model provides a fluid regulating valve, including a valve body and valve assemblies; an inner cylinder is provided inside the valve body, and a first cavity and a second cavity are opened inside the inner cylinder. An outer cavity is formed between the inner wall of the valve body and the outer wall of the inner cylinder, and the outer cavity is simultaneously connected to all the first cavity and the second cavity; two valve assemblies are spaced apart on the inner cylinder, one valve assembly is located between the first cavity and the outer cavity and is used to adjust the communication area between the first cavity and the outer cavity, and the other valve assembly is located between the second cavity and the outer cavity and is used to adjust the communication area between the second cavity and the outer cavity.

[0006] Based on the above technical solutions, optionally, all the first cavities are set on one end face of the inner cylinder in the axial direction, and all the second cavities are set on the other end face of the inner cylinder in the axial direction; the two valve assemblies are respectively set on both ends of the inner cylinder in the axial direction.

[0007] Alternatively, all the ends of the first cavity and all the second cavity away from the inner cylinder end face may extend radially along the inner cylinder.

[0008] Alternatively, at least one pair of first cavities and second cavities may be aligned at one end extending radially along the inner cylinder.

[0009] Based on the above technical solutions, optionally, the number of the first cavity and the second cavity are the same.

[0010] Alternatively, there may be two of each of the first and second cavities.

[0011] Based on the above technical solutions, optionally, the valve assembly includes stationary plates and moving plates, all stationary plates and all moving plates are coaxially arranged, the moving plates in each group rotate axially relative to the stationary plates, and the stationary plates and moving plates in each group are in mirror-sealed contact.

[0012] Alternatively, the stationary plate may have at least one through hole, which is connected to either the first cavity or the second cavity.

[0013] Alternatively, the moving plate may be provided with a blind zone, the area of ​​which is not less than the sum of the areas of all through holes.

[0014] Alternatively, the moving plate may also have a valve hole, which is arranged around the center of the moving plate along with the blind zone.

[0015] Based on the above technical solutions, optionally, the valve body is provided with at least one port, which is connected to the outer cavity.

[0016] Further optionally, it also includes a valve shaft and a linkage assembly; the valve shaft passes through the center of the inner cylinder, and two sets of stationary plates and moving plates are simultaneously sleeved on the valve shaft; at least one linkage assembly is disposed between the valve shaft and one of the moving plates; in the first state, the two moving plates rotate axially relative to the stationary plates simultaneously through the linkage assembly; in the second state, one of the moving plates rotates axially independently relative to the stationary plates.

[0017] Alternatively, the linkage component includes a movable part and a triggering part; the movable part and the triggering part are respectively disposed on the valve shaft and the moving plate; when the movable part rotates with the valve shaft and abuts the triggering part, the valve shaft simultaneously drives the two moving plates to rotate synchronously relative to the stationary plate; when the movable part disengages from the triggering part, the valve shaft drives one of the moving plates to rotate synchronously relative to the stationary plate and the other moving plate.

[0018] Alternatively, the trigger may be located at the outer edge of the moving piece.

[0019] Alternatively, the moving plate may have a valve hole, and the trigger part may be located on the inner wall of the valve hole.

[0020] The fluid regulating valve of this utility model has the following advantages over the prior art: (1) This utility model groups multiple cavities in the valve body, so that the inner cavities of different groups are connected to the outer cavity through different communication interfaces, and the two moving plates independently control the two groups of cavities. This not only completely eliminates the torque transmission caused by frictional contact between the two moving plates and avoids the problem of unexpected follow-up, but also greatly improves the precise control of the flow state and flow volume of different passages by controlling the two groups of cavities separately through the two moving plates.

[0021] (2) This utility model utilizes a linkage component to enable two moving plates to rotate independently or in coordination through the same valve shaft, which can realize complex multi-step control processes, greatly improving the repeatability of valve actions and the control reliability of the overall system. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional exploded view of the vertical five-way valve of this utility model; Figure 2 This is a front sectional view of the vertical five-way valve of this utility model; Figure 3 This is a perspective view of the valve shaft structure of the fluid regulating valve of this utility model; Figure 4 This is a three-dimensional exploded view of the vertical three-way valve of this utility model; Figure 5 This is an exploded perspective view of another embodiment of the vertical three-way valve of this utility model. Figure 6 This is a top view of the valve body of the vertical three-way valve of this utility model; Figure 7 This is a three-dimensional exploded view of the flat four-way valve of this utility model; Figure 8 An exploded perspective view of another embodiment of the flat four-way valve of this utility model. Figure 9 This is a top view of the valve body of the flat four-way valve of this utility model; Figure 10 This is a perspective view of another embodiment of the valve shaft structure of the fluid regulating valve of this utility model; Figure 11A perspective view of another embodiment of the valve shaft structure of the fluid regulating valve of this utility model; Figure 12 This is a front view of another embodiment of the valve shaft structure of the fluid regulating valve of this utility model.

[0024] In the diagram: 1. Valve body; 11. Pipe opening; 12. Inner cylinder; 13. Valve cover; 14. Water outlet pipe; 101. First cavity; 102. Second cavity; 103. Outer cavity; 104. First interface; 105. Second interface; 20. Valve assembly; 2. Stationary plate; 201. Through hole; 3. Moving plate; 301. Valve hole; 302. Blind zone; 4. Valve shaft; 5. Linkage assembly; 51. Moving part; 52. Triggering part; 53. First limit block; 54. Second limit block; 55. Slider. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0027] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0031] like Figure 1 As shown, combined with Figure 2 The present invention provides a fluid regulating valve, comprising a valve body 1 and a valve assembly 20.

[0032] The valve body 1 contains an inner cylinder 12, within which are formed a first cavity 101 and a second cavity 102. The number of first cavities 101 and second cavities 102 can be adjusted according to production design requirements. Each first cavity 101 and each second cavity 102 is isolated from the others within the inner cylinder 12. An outer cavity 103 is formed between the inner wall of the valve body 1 and the outer wall of the inner cylinder 12. The outer cavity 103 is connected to all the first cavities 101. The outer cavity 103 is connected to the two sets of first cavities 101 at two connecting points, which are spaced apart. If the connecting point between the outer cavity 103 and any set of first cavities 101 is considered as a connection at an interface, then the two connecting points are two connecting interfaces, designated as a first interface 104 and a second interface 105, respectively, with the first interface 104 and the second interface 105 spaced apart. Through the above design, the first cavity group 101 and the second cavity group 102 are essentially grouped and isolated, and the control problem that was originally on a connected interface in the existing design is split into two independent interfaces.

[0033] Two valve assemblies 20 are respectively disposed on the inner cylinder 12 and located at the first interface 104 and the second interface 105. The valve assemblies 20 are positioned between the first cavity 101 or the second cavity 102 and the outer cavity 103. The two valve assemblies 20 have two functions: first, the valve assemblies 20 can adjust the communication area between the first cavity 101 or the second cavity 102 and the outer cavity 103; second, the valve assemblies 20 can also adjust the number of first cavities 101 or second cavities 102 connected to the outer cavity 103 in each group. The core of this solution is that, through the "spatially separated dual-interface" design, the internal space of the inner cylinder 12 is grouped and the dual valve assemblies 20 are physically isolated, fundamentally cutting off the transmission path of frictional torque in the existing dual-moving-plate structure, thereby completely avoiding the problem that the rotation of one moving plate in the dual-moving-plate structure will cause the other moving plate to move unexpectedly under friction.

[0034] Furthermore, this solution is applicable to both vertical and horizontal valves. For example, when using a vertical five-way valve in this embodiment, combined with... Figure 1 It can be seen that valve covers 13 can be respectively provided at the top and bottom of valve body 1, and pipe ports 11 can be connected to the valve covers 13 at the top or bottom, with pipe ports 11 serving as input pipes; an inner cylinder 12 is fixedly fitted inside valve body 1, and two first cavities 101 and two second cavities 102 are opened inside the inner cylinder 12, with the two sets of cavities respectively connected to the outer cavity 103; four water outlet pipes 14 are simultaneously connected to the outer peripheral wall of valve body 1. Figure 1 The four outlet pipes 14, which appear to be two parallel straight pipes, are located on the same horizontal plane. All four outlet pipes 14 pass through the valve body 1 and connect to the inner cylinder 12. Each of the four outlet pipes 14 connects to one of the four cavities, which constitute the output passage. In this design, the input and output passages are not on the same horizontal plane, forming a vertical structure. For example, in this embodiment, when a flat four-way valve is used, combined with... Figure 7 It can be seen that the valve body 1 is also provided with two valve covers 13 and an inner cylinder 12; a first cavity 101 and a second cavity 102 are opened in the inner cylinder 12. Two pipe ports 11 and two water outlet pipes 14 are provided on the outer peripheral wall of the valve body 1. The four pipes are arranged in a cross shape and located on the same horizontal plane. The two water outlet pipes 14 are respectively connected to the two cavities of the inner cylinder 12, while the two pipe ports 11 are simultaneously connected to the outer cavity 103 of the valve body 1. The two water outlet pipes 14 are the output passages; one of the pipe ports 11 is the input passage, and the other pipe port 11 can be either an input or output passage. In this design, the input passage and the output passage are both on the same horizontal plane to form a flat structure.

[0035] exist Figure 2In one embodiment shown, all first cavities 101 are disposed on one end face of the inner cylinder 12 along its axial direction, and all second cavities 102 are disposed on the other end face of the inner cylinder 12 along its axial direction; two valve assemblies 20 are respectively disposed at both ends of the inner cylinder 12 along its axial direction. In this embodiment, the two sets of cavities inside the inner cylinder 12 are respectively opened on the two end faces of the inner cylinder 12 along its axial direction, so that the two sets of cavities are completely physically isolated, and can be controlled in groups by the two valve assemblies 20 without interfering with each other. The first cavities 101 and the second cavities 102 can be arranged vertically with a height difference, but in a preferred design, the first cavities 101 and the second cavities 102 can be located at the same height relative to the valve body 1. Specifically, since each first cavity 101 and the second cavity 102 is connected to the horizontally extending water outlet passage 14 or the pipe port 11, it is essentially a multi-pipeline structure designed with an equal height layout, which simplifies the difficulty of valve body casting and machining, and reduces manufacturing costs; at the same time, the pipe interfaces set at the same height also facilitate the connection of pipes during system installation.

[0036] exist Figure 1 In one embodiment shown, the ends of all first cavities 101 and all second cavities 102 away from the end face of the inner cylinder 12 extend radially along the inner cylinder 12. Therefore, the extension directions of the inner ends of each first cavity 101 and second cavity 102 (i.e., the ends connected to the water outlet passage 14 or the pipe port 11) are all parallel. Designing the multi-pipeline structure in a parallel layout can maximize the use of space, making the structure of the valve body 1 more regular and compact; at the same time, the parallel pipe interfaces also facilitate the connection of pipes during system installation.

[0037] exist Figure 1 In one embodiment shown, with each first cavity 101 and each second cavity 102 having the same height and parallel inner ends, at least one pair of first cavities 101 and second cavities 102 are aligned at one end extending radially along the inner cylinder 12. Under optimal design, the groups of first cavities 101 and second cavities 102 arranged within the inner cylinder 12 can form a centrally symmetrical back-to-back structure, making the internal structure of the valve body 1 more regular and compact.

[0038] exist Figure 1 , Figure 6 and Figure 9 In one embodiment shown, the number of first chambers 101 and second chambers 102 are the same. This embodiment optimizes the valve passage allocation for symmetry, which helps maintain pressure and flow balance when the fluid flows through the two interfaces, reducing fluid impact and vibration; moreover, ensuring that the two valve assemblies 20 control the same number of passages facilitates the design and implementation of symmetrical control logic. For example, Figure 1 In the five-way valve, the first cavity 101 and the second cavity 102 connected on the first interface 104 and the second interface 105 are both two; for example, Figure 6The three-way valve and Figure 9 The four-way valve in the middle has a first cavity 101 and a second cavity 102 that are connected on the first interface 104 and the second interface 105.

[0039] exist Figure 1 , Figure 4 , Figure 5 , Figure 7 and Figure 8 In one embodiment shown, there are two first cavities 101 and two second cavities 102. For example, Figure 1 As shown, there are two first cavities 101 and two second cavities 102. One valve assembly 20 is disposed between the two first cavities 101 and the outer cavity 103, and another valve assembly 20 is disposed between the two second cavities 102 and the outer cavity 103. A pipe port 11 is connected to the valve body 1, thus forming a five-way valve. However, the number of first cavities 101 and second cavities 102 is also only one, for example... Figure 4 and Figure 5 As shown, a valve assembly 20 is disposed between a first cavity 101 and an outer cavity 103, and another valve assembly 20 is disposed between a second cavity 102 and an outer cavity 103. A port 11 is connected to the valve body 1, thus forming a three-way valve; for example, Figure 7 and Figure 8 As shown, a valve assembly 20 is provided between a first cavity 101 and an outer cavity 103, and another valve assembly 20 is provided between a second cavity 102 and an outer cavity 103. Two ports 11 are connected to the valve body 1, thus forming a four-way valve.

[0040] exist Figure 1 In one embodiment shown, the valve assembly 20 includes a stationary plate 2 and a moving plate 3. All stationary plates 2 and all moving plates 3 are coaxially arranged. The moving plate 3 in each group rotates axially relative to the stationary plate 2. The stationary plate 2 and the moving plate 3 in each group are in mirror-sealed contact. Therefore, in this embodiment, the on / off relationship and flow rate of the first cavity 101 and the outer cavity 103 in different groups are controlled by the stationary plate 2 and the moving plate 3 in different valve assemblies 20.

[0041] exist Figure 1 , Figure 4 , Figure 5 , Figure 7 and Figure 8 In one embodiment shown, the stationary plate 2 has at least one through hole 201, which is connected to the first cavity 101 in each group. The number of through holes 201 is the same as the number of first cavities 101 connected to the communication interface. Theoretically, the number of through holes 201 on the stationary plate 2 on different communication interfaces can be different.

[0042] exist Figure 5and Figure 8 In one embodiment shown, the moving piece 3 is provided with a blind zone 302. The area of ​​the blind zone 302 is not less than the area of ​​one through hole 201, ensuring that when the moving piece 3 rotates to a certain angle, it can completely close at least one through hole 201. At the same time, the area of ​​the blind zone 302 is not less than the sum of the areas of all through holes 201, ensuring that when the moving piece 3 rotates to a certain angle, it can completely close all through holes 201, thereby completely cutting off the flow of each through hole 201. In practice, the moving piece 3 in this embodiment can be a closed plate without opening holes on it. Specifically, it can be a fan-shaped plate, and the stationary piece 2 can also have a fan-shaped frame with fan-shaped through holes 201 on it. This design saves production costs, but it requires higher stability and tightness in the mirror-sealed contact between the stationary piece 2 and the moving piece 3. It should be noted that the definition of blind zone 302 described in this embodiment refers to the area on the moving plate 3 that completely coincides with the through hole 201 when the moving plate 3 rotates to just completely close a through hole 201; therefore, blind zone 302 is a region of the non-opening part on the moving plate 3, but in practice, the entire non-opening part on the moving plate 3 can be regarded as blind zone 302.

[0043] exist Figure 1 , Figure 4 and Figure 7 In one embodiment shown, the moving plate 3 has a valve hole 301. The valve hole 301 and the blind zone 302 are arranged around the center of the moving plate 3. At this time, both the moving plate 3 and the stationary plate 2 are circular plates with holes on them. The area of ​​the valve hole 301 is not less than the area of ​​the through hole 201, so that when the moving plate 3 is completely connected to one of the through holes 201, the valve passage can reach the maximum flow rate. At the same time, the area of ​​the valve hole 301 is not greater than the sum of the areas of the two through holes 201, so as to avoid the valve hole 301 being too large, which would cause the moving plate 3 to close and the flow rate of the through hole 201 to fail.

[0044] exist Figure 1 , Figure 4 and Figure 5 In one embodiment shown, the valve body 1 is provided with at least one port 11, which is connected to the outer cavity 103. The port 11 can serve as an input passage or an output passage for the valve body 1.

[0045] exist Figure 3 and Figure 10 In one embodiment shown, in order to enable the two moving plates 3 to move in tandem, a valve shaft 4 and a linkage assembly 5 are also included.

[0046] The valve shaft 4 is inserted through the center of the inner cylinder 12 and is positioned on the central axis of the inner cylinder 12. Two sets of stationary plates 2 and moving plates 3 are simultaneously sleeved on the valve shaft 4. At least one linkage component 5 is disposed between the valve shaft 4 and one of the moving plates 3.

[0047] In the first state, the two moving plates 3 rotate axially simultaneously relative to the stationary plate 2 via the linkage assembly 5; in the second state, one of the moving plates 3 rotates axially independently relative to the stationary plate 2. The objective of this solution is to enable the two moving plates 3 to rotate simultaneously in the first state, and to enable either of the two moving plates 3 to rotate independently in the second state, through some means.

[0048] As one of the most mature and easiest implementation methods, the valve shaft 4 can be fixedly connected to one of the moving plates 3 via a flat key or spline, allowing the valve shaft 4 to drive one of the moving plates 3 to rotate synchronously axially relative to the stationary plate 2. In this case, the moving plate 3 is the active moving plate 3. A linkage component 5 is provided between the moving plate 3, which is not directly connected to the valve shaft 4, and the valve shaft 4. While driving the active moving plate 3 to rotate synchronously, the valve shaft 4 can also drive the other moving plate 3 to rotate synchronously axially via the linkage component 5. This moving plate 3, which is not directly connected to the valve shaft 4, is the driven moving plate 3. This embodiment combines the advantages of physical isolation between the two moving plates 3 with mechanical linkage to achieve on-demand linkage between the two moving plates 3, meeting the needs of fluid control valves for complex coordination functions.

[0049] Another implementation method is to insert two valve shafts 4 at each end of the inner cylinder 12, and to each valve shaft 4, a set of stationary plates 2 and a set of moving plates 3 are fitted onto them. In this case, the two moving plates 3 are independently controlled by the two valve shafts 4, so there is no need to set a linkage component 5 between the valve shafts 4 and the moving plates 3. This design allows for more flexible control of the two moving plates 3, but due to the use of a double valve shaft 4 structure, its production cost and assembly difficulty are higher, and the valve operation stability is also ideal.

[0050] Another implementation method can be adopted: see Figure 11 and Figure 12Two linkage components 5 are respectively provided between the two ends of the valve shaft 4 and the two moving plates 3. The linkage component 5 includes a movable part 51 and a trigger part 52. The movable part 51 is a round pin set on a cantilever of the valve shaft 4, and the trigger part 52 is a groove opened on the end face of the moving plate 3. The valve shaft 4 can move up and down along its axial direction. In the initial state, the lower movable part 51 is inserted into the trigger part 52, while the upper movable part 51 is not inserted into the trigger part 52. Therefore, the lower moving plate 3 can rotate with the valve shaft 4, while the upper moving plate 3 does not move. When the valve shaft 4 descends to an intermediate position, the two movable parts 51 of the upper and lower linkage components 5 are respectively inserted into the two trigger parts 52. At this time, the rotation of the valve shaft 4 can drive the two moving plates 3 to rotate at the same time. The valve shaft 4 continues to descend to the bottom, until the upper movable part 51 is inserted into the trigger part 52, while the lower movable part 51 is disengaged from the trigger part 52. At this time, the upper moving plate 3 can rotate with the valve shaft 4, while the lower moving plate 3 does not move. To enable the valve shaft 4 to move up and down, one end of the valve shaft 4 can extend outside the valve body 1 and a slider 55 can be installed at the end. A first limiting block 53 and a second limiting block 54 are installed on the left and right sides of the outer wall of the valve body 1, with a height difference between the first limiting block 53 and the second limiting block 54. A spring is installed between the two limiting blocks and the slider 55. When the valve shaft 4 is connected to the actuator, the actuator drives the slider 55 to move between the two limiting blocks, thereby driving the valve shaft 4 to move up and down. This design can independently control the rotation state of the two moving plates 3, and can also simultaneously regulate the rotation of the two moving plates 3, thus providing higher operational flexibility. However, its structural complexity is also relatively greater, which is not conducive to production, assembly, and maintenance.

[0051] exist Figure 3 and Figure 10 In one embodiment shown, the linkage component 5 includes an active part 51 and a trigger part 52.

[0052] The movable part 51 and the trigger part 52 are respectively mounted on the valve shaft 4 and the moving plate 3. When the movable part 51 rotates with the valve shaft 4 and abuts against the trigger part 52, the valve shaft 4 simultaneously drives the two moving plates 3 to rotate synchronously relative to the stationary plate 2. When the movable part 51 disengages from the trigger part 52, the valve shaft 4 drives one of the moving plates 3 to rotate synchronously relative to the stationary plate 2 and the other moving plate 3. The movable part 51 and the trigger part 52 can both be isosceles trapezoidal blocks. The short sides of the two isosceles trapezoidal blocks are connected to the valve shaft 4 or the moving plate 3. When the movable part 51 and the trigger part 52 abut against each other, the hypotenuses of the two isosceles trapezoidal blocks can fit tightly against each other.

[0053] exist Figure 3 In one embodiment shown, the trigger part 52 is disposed on the outer edge of the moving piece 3. This embodiment is the most direct and easiest to process and implement.

[0054] exist Figure 10In one embodiment shown, the moving plate 3 has a valve hole 301, and the trigger part 52 is disposed on the inner wall of the valve hole 301. In this embodiment, the linkage component 5 is actually located in one of the valve holes 301, which avoids adding a protrusion to the outer edge of the moving plate 3, and can make the valve body 1 more compact, which is more suitable for occasions with specific space constraints.

[0055] like Figure 1 As shown, combined with Figure 2 This utility model discloses a fluid regulation method using a fluid regulating valve according to any of the above embodiments, comprising the following steps: Step 1, fluid enters the valve body 1 and is located in the outer cavity 103; Step 2, the valve shaft 4 is rotated, which drives one of the moving plates 3 to rotate synchronously, so that at least one first cavity 101 is connected to the outer cavity 103 through one of the valve assemblies 20 at the first interface 104, and the fluid enters at least one first cavity 101. At this time, the moving part 51 is not in contact with the trigger part 52; Step 3, after the valve shaft 4 is rotated so that the moving part 51 abuts against the trigger part 52, the valve shaft 4 is rotated again, which simultaneously drives two moving plates 3 to rotate synchronously, so that at least one second cavity 102 is connected to the outer cavity 103 through another valve assembly 20 at the second interface 105, and the fluid enters at least one first cavity 101 and at least one second cavity 102. The method of this embodiment achieves step-by-step control of the passage adjustment based on the contact or disengagement of the active part 51 and the trigger part 52. It follows a series of steps of "independent-linkage-adjustment-reverse disengagement" to realize the specific control logic and sequence of the fluid regulating valve.

[0056] like Figure 1 As shown, combined with Figure 2 The fluid regulation method of this utility model also includes the following steps: Step four, continue to rotate the valve shaft 4, which will produce two results: First, change the number of first cavities 101 or second cavities 102 connected to the outer cavity 103, thereby changing the communication area; Second, change the position of the outer cavity 103 connected to the first cavity 101 or second cavity 102, that is, the outer cavity 103 switches to connect to other first cavities 101 or second cavities 102, thereby changing the opening and closing state of each cavity; This step mainly reflects the method of regulating the flow and on / off state of each passage in the valve body 1 when the two moving plates 3 rotate together; Step five, rotate the valve shaft 4 in the opposite direction. When the moving part 51 disengages from the trigger part 52, the valve shaft 4 drives one of the moving plates 3 to rotate synchronously again. This step mainly reflects the method of rotating the valve shaft 4 in the opposite direction to release the linkage of the two moving plates 3.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fluid regulating valve, characterized in that: Includes valve body (1) and valve assembly (20); The valve body (1) is provided with an inner cylinder (12), and the inner cylinder (12) has a first cavity (101) and a second cavity (102) inside. The inner wall of the valve body (1) and the outer wall of the inner cylinder (12) form an outer cavity (103), and the outer cavity (103) is connected to all the first cavities (101) and the second cavities (102). Two valve assemblies (20) are spaced apart on the inner cylinder (12). One valve assembly (20) is located between the first cavity (101) and the outer cavity (103) and is used to adjust the communication area between the first cavity (101) and the outer cavity (103). The other valve assembly (20) is located between the second cavity (102) and the outer cavity (103) and is used to adjust the communication area between the second cavity (102) and the outer cavity (103).

2. The fluid regulating valve according to claim 1, characterized in that: All of the first cavities (101) are located on one end face of the inner cylinder (12) in the axial direction, and all of the second cavities (102) are located on the other end face of the inner cylinder (12) in the axial direction; the two valve assemblies (20) are respectively located at both ends of the inner cylinder (12) in the axial direction.

3. A fluid regulating valve according to claim 2, characterized in that: All the first cavity (101) and all the second cavity (102) extend radially along the inner cylinder (12) from the end face away from the inner cylinder (12).

4. A fluid regulating valve according to claim 3, characterized in that: At least one pair of the first cavity (101) and the second cavity (102) are aligned at one end extending radially along the inner cylinder (12).

5. A fluid regulating valve according to any one of claims 1 to 4, characterized in that: The number of the first cavity (101) and the second cavity (102) are the same.

6. A fluid regulating valve according to claim 5, characterized in that: The number of the first cavity (101) and the second cavity (102) are both two.

7. A fluid regulating valve according to claim 1, characterized in that: The valve assembly (20) includes a stationary plate (2) and a moving plate (3). All the stationary plates (2) and all the moving plates (3) are coaxially arranged. The moving plate (3) in each group rotates axially relative to the stationary plate (2). The stationary plate (2) and the moving plate (3) in each group are in mirror-sealed contact.

8. A fluid regulating valve according to claim 7, characterized in that: The stationary plate (2) has at least one through hole (201), and the through hole (201) is connected to each of the first cavity (101) or the second cavity (102) in a one-to-one correspondence.

9. A fluid regulating valve according to claim 8, characterized in that: The moving piece (3) is provided with a blind zone (302), the area of ​​which is not less than the sum of the areas of all through holes (201).

10. A fluid regulating valve according to claim 9, characterized in that: The moving plate (3) is also provided with a valve hole (301), and the valve hole (301) and the blind zone (302) are arranged around the center of the moving plate (3).

11. A fluid regulating valve according to claim 1, characterized in that: The valve body (1) is provided with at least one port (11), which is connected to the outer cavity (103).

12. A fluid regulating valve according to any one of claims 7 to 10, characterized in that: It also includes a valve shaft (4) and a linkage assembly (5); The valve shaft (4) passes through the center of the inner cylinder (12), and two sets of stationary plates (2) and moving plates (3) are simultaneously sleeved on the valve shaft (4). At least one of the linkage components (5) is disposed between the valve shaft (4) and one of the moving plates (3); In the first state, the two moving plates (3) rotate axially relative to the stationary plate (2) simultaneously through the linkage assembly (5); In the second state, one of the moving pieces (3) rotates independently of the stationary piece (2) along its axis.

13. A fluid regulating valve according to claim 12, characterized in that: The linkage component (5) includes an active part (51) and a triggering part (52); The movable part (51) and the trigger part (52) are respectively disposed on the valve shaft (4) and the moving plate (3); When the movable part (51) rotates with the valve shaft (4) and abuts against the trigger part (52), the valve shaft (4) simultaneously drives the two moving pieces (3) to rotate synchronously relative to the stationary piece (2). When the movable part (51) disengages from the trigger part (52), the valve shaft (4) drives one of the moving pieces (3) to rotate synchronously relative to the stationary piece (2) and the other moving piece (3).

14. A fluid regulating valve according to claim 13, characterized in that: The trigger part (52) is located on the outer edge of the moving piece (3).

15. A fluid regulating valve according to claim 13, characterized in that: The moving plate (3) has a valve hole (301) and the trigger part (52) is disposed on the inner wall of the valve hole (301).

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