A valve plate assembly and a fluid valve

Abstract

The utility model provides a valve piece subassembly and fluid valve belong to fluid valve, including valve shaft and moving piece, the through hole is set up in moving piece center and is set on valve shaft through the through hole, is provided with the boss on one end face of moving piece, is provided with the pusher on the boss, is provided with the cantilever on the outer peripheral wall of valve shaft, the cantilever one end is connected on valve shaft, the cantilever other end extends along the radial direction of valve shaft, and the cantilever rotates synchronously with valve shaft, when the cantilever does not touch with the pusher, the valve shaft is relative moving piece axle rotation, when the cantilever touches with the pusher, the valve shaft pushes the pusher and drives moving piece synchronous rotation. The utility model through the cantilever end on valve shaft and the pusher on moving piece surface touch, through the cantilever rotation to push the pusher, make valve shaft can indirectly drive moving piece rotation, has met some scenes under the scene demand that cannot drive moving piece rotation directly through valve shaft, has improved the multi -scene versatility of valve piece subassembly greatly.

Description

Technical Field

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

[0002] A fluid valve is a key component used to control the switching or distribution of fluid between multiple channels. It is widely used in many fields such as HVAC, water treatment, industrial process control, medical devices, and irrigation. Existing fluid valves typically employ a design with stationary and moving plates working together. By having the stationary and moving plates overlap and make mirror-sealed contact, they rotate in opposite directions, connecting different through holes on the stationary and moving plates to open and close each water passage and control the flow rate of each passage.

[0003] In fluid valves, the valve shaft is typically fixedly connected to a movable plate fitted on it via a key or spline, enabling the valve shaft to drive the movable plate to rotate. However, due to limitations in their internal structure, some valve bodies cannot directly drive the movable plate to rotate via the valve shaft. Therefore, the current connection method between the valve shaft and the movable plate cannot meet this requirement. Utility Model Content

[0004] In view of this, the present invention proposes a valve plate assembly and a fluid valve to solve the problem that the current connection method between the valve shaft and the moving plate cannot meet the needs of scenarios where the moving plate needs to be indirectly driven to rotate through the valve shaft.

[0005] The technical solution of this utility model is implemented as follows: This utility model provides a valve plate assembly, including a valve shaft and a moving plate. The moving plate has a through hole in its center and is sleeved on the valve shaft through the through hole. A boss is provided on one end face of the moving plate, and a push block is provided on the boss. A cantilever is provided on the outer peripheral wall of the valve shaft. One end of the cantilever is connected to the valve shaft, and the other end of the cantilever extends radially along the valve shaft. The cantilever rotates synchronously with the valve shaft. When the cantilever does not abut against the push block, the valve shaft rotates relative to the moving plate. When the cantilever abuts against the push block, the valve shaft pushes the push block and drives the moving plate to rotate synchronously.

[0006] Based on the above technical solutions, a preferred embodiment also includes a retaining ring, which is detachably sleeved on the valve shaft, and the cantilever is set on the retaining ring.

[0007] More preferably, it also includes a plug, with a socket provided on the edge of the boss away from the through hole; one end of the plug is detached into the socket and the other end extends radially along the through hole, and a push block is provided on the surface of the outwardly extending end of the plug.

[0008] More preferably, by replacing the inserts with different extension lengths, the distance between the push block and the through hole can be increased or decreased; by replacing the retaining rings with different cantilever lengths, the cantilever and the push block can be made to abut against each other.

[0009] More preferably, the insert has symmetrical slots on both sides of its extension direction, and the inner walls on both sides of the socket have locking blocks. When the insert is inserted into the socket, the slots and locking blocks cooperate to fix the insert in the socket.

[0010] Even more preferably, both the socket and the insertion end of the plug are mating sector-shaped blocks.

[0011] Based on the above technical solutions, preferably, the distance between the cantilever and the surface of the boss is not less than the thickness of the push block, and a stop block is provided on the end of the cantilever facing the surface of the boss. The stop block rotates with the valve shaft and abuts against the push block.

[0012] More preferably, the push block has symmetrical grooves on both sides along the extension direction of the insert block, and when the stop block and the push block come into contact, the stop block enters the groove.

[0013] More preferably, the stop block is a trapezoidal block or a sector-shaped block, and the width of the end of the stop block away from the valve shaft is greater than the width of the end of the stop block facing the valve shaft.

[0014] On the other hand, this utility model also provides a fluid valve, which adopts the above-mentioned valve plate assembly, and further includes a stationary plate, the stationary plate and the moving plate having mirror-sealed contact at the end face away from the cantilever; when the cantilever does not abut against the push block, the valve shaft rotates relative to the moving plate and the stationary plate; when the cantilever abuts against the push block, the valve shaft pushes the push block and drives the moving plate to rotate synchronously relative to the stationary plate.

[0015] The valve plate assembly and fluid valve of this utility model have the following advantages over the prior art: (1) This utility model uses the cantilever end on the valve shaft to contact the push block on the surface of the moving plate, and pushes the push block by rotating the cantilever, so that the valve shaft can indirectly drive the moving plate to rotate. This satisfies the scenario requirements where the moving plate cannot be directly driven by the valve shaft in certain scenarios, and greatly improves the versatility of the valve plate assembly in multiple scenarios.

[0016] (2) The present invention provides a socket on the boss. By replacing the plug inserted in the socket, the change in the length of the plug represents the adjustment of the torque length of the cantilever pushing the push block to rotate. The driving force of the valve shaft and the rotation accuracy of the moving plate can be adjusted according to the needs of the scenario. Attached Figure Description

[0017] 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.

[0018] Figure 1This is a perspective view of the valve plate assembly of this utility model; Figure 2 This is a partial exploded perspective view of the valve plate assembly of this utility model; Figure 3 This is a perspective view of the insert block of this utility model; Figure 4 This is a perspective view of the valve plate assembly of this utility model from another angle.

[0019] In the diagram: 1. Valve shaft; 11. Cantilever; 12. Stop block; 2. Moving plate; 21. Boss; 22. Push block; 201. Through hole; 202. Insertion port; 203. Groove; 3. Snap ring; 4. Insertion block; 401. Snap groove; 5. Stationary plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0021] In the description of the embodiments of the present invention, 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 the present invention based on the specific circumstances.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "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 the present invention 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 the present invention.

[0023] 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 invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] Embodiments of the present invention are described in detail below, examples of which are illustrated 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 the present invention, and should not be construed as limiting the present invention.

[0025] The following disclosure provides numerous different embodiments or examples for implementing various structures of the 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 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. Additionally, 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.

[0026] like Figure 1 As shown, combined with Figure 2 and Figure 4 The present invention provides a valve plate assembly, comprising a valve shaft 1 and a moving plate 2.

[0027] The movable plate 2 has a through hole 201 at its center and is fitted onto the valve shaft 1 through the through hole 201. The through hole 201 is a complete circle, allowing the valve shaft 1 to rotate within the through hole 201 without causing the movable plate 2 to rotate. A boss 21 is provided on one end face of the movable plate 2, and a push block 22 is provided on the boss 21. Since the push block 22 protrudes from the surface of the movable plate 2, the movable plate 2 itself can be rotated by pushing the push block 22 to rotate.

[0028] A cantilever 11 is provided on the outer peripheral wall of the valve shaft 1. One end of the cantilever 11 is connected to the valve shaft 1, and the other end of the cantilever 11 extends radially along the valve shaft 1. The cantilever 11 rotates synchronously with the valve shaft 1. There are two states when the cantilever 11 rotates: First, when the cantilever 11 does not contact the push block 22, the push block 22 will not be pushed. At this time, the valve shaft 1 rotates relative to the moving plate 2, while the moving plate 2 itself remains stationary. When the cantilever 11 contacts the push block 22, the push block 22 will be pushed by the cantilever 11. At this time, the valve shaft 1 will push the push block 22 and drive the moving plate 2 to rotate synchronously, thus achieving the purpose of the valve shaft 1 indirectly driving the moving plate 2 to rotate.

[0029] exist Figure 2In one embodiment shown, a retaining ring 3 is further included. The retaining ring 3 is detachably sleeved on the valve shaft 1, and the cantilever 11 is disposed on the retaining ring 3. The annular hole of the retaining ring 3 is mounted on the valve shaft 1 via a flat key or spline structure. Therefore, various retaining rings 3 with different cantilever 1 lengths can be prepared. By replacing the retaining ring 3, the length of the cantilever 1 can be changed. The change in the length of the cantilever 1 represents the change in torque when the valve shaft 1 indirectly drives the moving plate 2 to rotate, so as to be suitable for different application scenarios.

[0030] exist Figure 2 and Figure 3 In one embodiment shown, the device further includes a plug 4. A socket 202 is provided on the edge of the boss 21 away from the through hole 201. One end of the plug 4 is detached from the socket 202, and the other end extends radially along the through hole 201. A push block 22 is provided on the surface of the outwardly extending end of the plug 4. Therefore, various plugs 4 of different lengths can be prepared. By replacing the retaining ring 4, the distance between the push block 22 and the axis of the valve shaft 1 can be changed. The change in the distance between the push block 22 and the axis of the valve shaft 1 also represents the change in torque when the valve shaft 1 indirectly pushes the moving plate 2 to rotate, so as to adapt to different application scenarios.

[0031] exist Figure 2 In one embodiment shown, by replacing the inserts 4 with different extension lengths, the distance between the push block 22 and the through hole 201 is increased or decreased; by replacing the retaining rings 3 with different lengths on the cantilever 11, the cantilever 11 is made to abut against the push block 22. Specifically, in some cases, the valve shaft 1 needs to drive the moving plate 2 to make a small-angle fine rotation each time with a small torque, so it is necessary to replace the retaining ring 3 with a shorter length and the insert 4 with a shorter length; while in some cases, the valve shaft 1 needs to drive the moving plate 2 to make a large-angle imprecise rotation each time with a large torque, so the retaining ring 3 with a longer length and the insert 4 with a longer length can be replaced.

[0032] exist Figure 3 In one embodiment shown, slots 401 are symmetrically provided on both sides of the extension direction of the plug 4, and locking blocks are provided on both sides of the inner wall of the socket 202. When the plug 4 is inserted into the socket 202, the slots 401 and the locking blocks cooperate to fix the plug 4 in the socket 202, thereby realizing the insertion, disassembly and replacement of the plug 4 and the socket 202.

[0033] exist Figure 2 In one embodiment shown, the insertion end of the socket 202 and the insertion block 4 are both matching fan-shaped blocks, so that the socket 202 forms an flared structure, which makes it convenient for personnel to insert the insertion block 4.

[0034] exist Figure 2In one embodiment shown, the distance between the cantilever 11 and the surface of the boss 21 is not less than the thickness of the push block 22. A stop 12 is provided on the end of the cantilever 11 facing the surface of the boss 21. The stop 12 rotates with the valve shaft 1 and abuts against the push block 22. Since the valve shaft 1 needs to push the push block 21 to rotate through the cantilever 11, the width of the cantilever 11 is generally relatively wide to improve the structural strength of the cantilever 11 and prevent it from breaking. However, this will cause the cantilever 11 to contact the push block 21 before rotating a full revolution with the valve shaft 1, making it difficult for personnel to judge whether the cantilever 11 is in contact with the push block 21 by observing the rotation structure of the valve shaft 1 from the outside. In this embodiment, the push block 21 is pushed by the smaller stop 12 abutting against it. Since the width of the stop 12 is much smaller than that of the cantilever 11, it is more accurate for personnel to observe the rotation angle of the valve shaft 1 to determine the contact between the stop 12 and the push block 21.

[0035] exist Figure 2 In one embodiment shown, the push block 22 has symmetrically provided grooves 203 on both sides along the extension direction of the insert block 4. When the stop block 12 abuts against the push block 22, the stop block 12 enters the groove 203. The grooves 203 on both sides of the push block 22 can reduce the width of the push block 22, making it more accurate for personnel to observe the rotation angle of the valve shaft 1 to determine the contact between the stop block 12 and the push block 21.

[0036] exist Figure 2 In one embodiment shown, the stop block 12 is a trapezoidal block or a sector-shaped block. The width of the end of the stop block 12 away from the valve shaft 1 is greater than the width of the end of the stop block 12 facing the valve shaft 1, so that the pushing surface of the stop block 12 that abuts against the push block 21 is parallel to the radial surface of the valve shaft 1, so that the force of the valve shaft 1 pushing the push block 21 can be applied to the push block 21 more evenly, and the rotation of the moving plate 2 is more stable.

[0037] like Figure 1 As shown, combined with Figure 2 and Figure 4 This utility model discloses a fluid valve, employing the valve plate assembly of any of the above embodiments, and further includes a valve body and a stationary plate 5. The stationary plate 5 and the moving plate 2 are installed within the valve body, with the end faces of the stationary plate 5 and the moving plate 2 away from the cantilever 11 in mirror-sealed contact. The stationary plate 5 has flow channel holes according to the number of valve outlet passages. The valve shaft 1 passes through the valve body. When the cantilever 11 is not in contact with the push block 22, the valve shaft 1 rotates relative to the moving plate 2 and the stationary plate 5. When the cantilever 11 is in contact with the push block 22, the valve shaft 1 pushes the push block 22 and causes the moving plate 2 to rotate synchronously relative to the stationary plate 5. By indirectly driving the moving plate 2 to rotate relative to the stationary plate 5 through the valve shaft 1, the flow cross-sectional area of ​​the flow channel holes on the stationary plate 5 closed by the moving plate 2 is changed, thereby achieving the regulation of the flow rate in the valve passages.

[0038] 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 valve plate assembly, characterized in that: Includes valve shaft (1) and moving plate (2). The moving plate (2) has a through hole (201) in the center and is sleeved on the valve shaft (1) through the through hole (201). A boss (21) is provided on one end face of the moving plate (2), and a push block (22) is provided on the boss (21). A cantilever (11) is provided on the outer peripheral wall of the valve shaft (1). One end of the cantilever (11) is connected to the valve shaft (1), and the other end of the cantilever (11) extends radially along the valve shaft (1). The cantilever (11) rotates synchronously with the valve shaft (1). When the cantilever (11) is not in contact with the push block (22), the valve shaft (1) rotates relative to the moving plate (2). When the cantilever (11) comes into contact with the push block (22), the valve shaft (1) pushes the push block (22) and drives the moving plate (2) to rotate synchronously.

2. A valve plate assembly according to claim 1, characterized in that: It also includes a retaining ring (3), which is detachably sleeved on the valve shaft (1), and the cantilever (11) is set on the retaining ring (3).

3. A valve plate assembly according to claim 2, characterized in that: It also includes the insert block (4). The boss (21) has an insertion port (202) on its edge away from the through hole (201); One end of the insert (4) is detached inside the socket (202) and the other end extends radially along the through hole (201). A push block (22) is provided on the surface of the end of the insert (4) that extends outward.

4. A valve plate assembly according to claim 3, characterized in that: By replacing the inserts (4) with different extension lengths, the distance between the push block (22) and the through hole (201) can be increased or decreased; by replacing the retaining rings (3) with different lengths of the cantilever (11), the cantilever (11) and the push block (22) can be made to abut against each other.

5. A valve plate assembly according to claim 3, characterized in that: The insertion block (4) has symmetrical slots (401) on both sides of its extension direction. The inner walls of the socket (202) are provided with locking blocks. When the insertion block (4) is inserted into the socket (202), the slots (401) cooperate with the locking blocks and fix the insertion block (4) in the socket (202).

6. A valve plate assembly according to claim 3, characterized in that: The insertion end of the socket (202) and the insertion block (4) are both matching sector blocks.

7. A valve plate assembly according to claim 1, characterized in that: The distance between the cantilever (11) and the surface of the boss (21) is not less than the thickness of the push block (22). A stop block (12) is provided on the end of the cantilever (11) facing the surface of the boss (21). The stop block (12) rotates with the valve shaft (1) and abuts against the push block (22).

8. A valve plate assembly according to claim 7, characterized in that: The push block (22) has grooves (203) symmetrically opened on both sides along the extension direction of the insert block (4). When the stop block (12) abuts against the push block (22), the stop block (12) enters the groove (203).

9. A valve plate assembly according to claim 7, characterized in that: The stop block (12) is a trapezoidal block or a sector-shaped block, and the width of the end of the stop block (12) away from the valve shaft (1) is greater than the width of the end of the stop block (12) facing the valve shaft (1).

10. A fluid valve, characterized in that: The valve plate assembly according to any one of claims 1 to 9 further includes a stationary plate (5). The stationary plate (5) and the moving plate (2) are in mirror-sealed contact at the end face away from the cantilever (11); When the cantilever (11) does not contact the push block (22), the valve shaft (1) rotates relative to the moving plate (2) and the stationary plate (5); When the cantilever (11) comes into contact with the push block (22), the valve shaft (1) pushes the push block (22) and drives the moving plate (2) to rotate synchronously relative to the stationary plate (5).

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