Valve device

Abstract

The utility model provides a kind of valve device. The valve device includes valve body;Valve core subassembly, valve core subassembly includes fixed valve piece and movable valve piece, fixed valve piece is set with flow passage mouth, movable valve piece is rotatably arranged relative to fixed valve piece;Driving part, driving part is connected in movable valve piece, for driving movable valve piece rotates around first axis;Limiting structure, limiting structure is used to cooperate with driving part;Driving part includes: first extension, first extension extends along radial direction;Second extension, second extension extends along vertical direction, and is connected with first extension, second extension is provided with rotary connection part and limiting cooperation part;Wherein, rotary connection part and limiting cooperation part are all deviated from first axis setting. In the valve device provided by the utility model, when the size of fixed valve piece and movable valve piece is relatively small, the opening of movable valve piece and the flow passage mouth of fixed valve piece can have enough repeatable area, so as to ensure the maximum flow that valve device can pass.

Description

Technical Field

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

[0002] Existing valve devices include a fixed valve component and a movable valve component. The fixed valve component has a flow channel orifice, and the movable valve component has an opening corresponding to the flow channel orifice. By rotating the fixed valve component, the size of the overlapping area between the flow channel orifice and the opening can be controlled, thereby controlling the flow rate of the valve device.

[0003] In existing valve devices, the actuator is connected to the center of the moving valve, enabling it to rotate relative to the stationary valve. When the valve device is small, the moving valve is also small. In this case, to meet the flow requirements of the valve device, the opening of the moving valve must extend to its center to have sufficient area. However, since the traditional actuator is connected to the center of the moving valve, the opening cannot be too close to the center of the moving valve. This limits the maximum flow rate that the valve device can handle, thus restricting its application range. Utility Model Content

[0004] This utility model provides a valve device, the purpose of which is to solve the problem in the prior art that when the size of the valve device is small, the maximum flow rate that the valve device can pass through also becomes smaller.

[0005] To achieve the above objectives, this utility model provides a valve device, comprising: Valve body; A valve core assembly is disposed in the valve body and includes a fixed valve component and a movable valve component. The fixed valve component has a flow channel opening, and the movable valve component is rotatably disposed relative to the fixed valve component to adjust the opening size of the flow channel opening. A driving component, connected to the movable valve component, is used to drive the movable valve component to rotate around a first axis, so that the movable valve component rotates relative to the fixed valve component; A limiting structure is provided, which cooperates with the driving member to limit the rotation angle of the moving valve member. The driving component includes: A first extension, the first extension extending radially; The second extension extends vertically and is connected to the first extension. The second extension is provided with a rotating connection part and a limiting engagement part. The driving member is connected to the moving valve member through the rotating connection part to drive the moving valve member to rotate around the first axis. The limiting engagement part engages with the limiting structure to limit the rotation angle of the moving valve member. Both the rotating connecting part and the limiting fitting part are offset from the first axis.

[0006] As a further improvement of this utility model, the limiting and fitting part is located at the end of the second extension.

[0007] As a further improvement of this utility model, the limiting structure includes a limiting groove formed in the fixed valve member, the limiting groove extending along the rotation direction of the moving valve member, and the limiting mating part slidably accommodated in the limiting groove.

[0008] As a further improvement of this utility model, the two sidewalls of the limiting groove in the circumferential direction are in surface contact with the limiting mating part.

[0009] As a further improvement of this utility model, the two groove sidewalls are planar, and their extended surfaces intersect at the first axis.

[0010] As a further improvement of this utility model, the second extension is provided with an end wall on the side away from the fixed valve member; The limiting structure includes a limiting groove formed in the end wall, the limiting groove extending along the rotation direction of the moving valve, and the limiting mating part slidably accommodated in the limiting groove.

[0011] As a further improvement of this utility model, the valve device further includes a drive mechanism connected to the valve body, and the drive member further includes a connecting portion connecting the first extension and the drive mechanism. The drive mechanism is used to drive the drive member to rotate around the first axis.

[0012] As a further improvement of this utility model, the connecting part is integrally formed with the first extension part; And / or, the second extension is integrally formed with the first extension.

[0013] As a further improvement of this utility model, the valve core assembly further includes: A positioning post is disposed between the fixed valve and the moving valve, and the axis of the positioning post coincides with the first axis.

[0014] As a further improvement of this utility model, the valve device further includes: A sleeve is provided around the moving valve component and fixedly connected to the valve body. The peripheral wall of the sleeve is provided with a through hole for fluid to pass through.

[0015] Beneficial effects: In the valve device provided by this utility model, the driving component includes a radially extending first extension and a vertically extending second extension. The first and second extensions form an "L"-shaped cantilever structure, causing the position connecting the moving valve to deviate from the first axis (i.e., the center of the moving valve). This allows the opening on the moving valve corresponding to the flow passage of the fixed valve to extend to the center of the moving valve. When both the fixed and moving valves are relatively small, the opening of the moving valve and the flow passage of the fixed valve can have sufficient repeatable area, thus ensuring the maximum flow rate that the valve device can handle. Simultaneously, the limiting fitting portion of the second extension is also deviated from the first axis, and it cooperates with the limiting structure along the rotation direction of the moving valve, ensuring that the moving valve can only rotate within a predetermined range, preventing erroneous rotation of the moving valve, and ensuring the normal operation of the valve device. Attached Figure Description

[0016] Figure 1 A cross-sectional view of a valve device provided in an embodiment of this utility model; Figure 2 for Figure 1 Exploded view of the central valve device; Figure 3 for Figure 1 A three-dimensional structural diagram of the central valve component; Figure 4 for Figure 1 A three-dimensional structural diagram of the intermediate-operation valve.

[0017] In the picture: 100. Valve device; 10. Valve body; 20. Valve core assembly; 21. Fixed valve component; 211. Flow channel opening; 212. Limiting groove; 2121. Groove sidewall; 22. Moving valve component; 221. Opening; 23. Positioning pin; 30. Driving component; 31. First extension; 32. Second extension; 33. Connecting part; 34. Rotating connecting part; 35. Limiting mating part; 40. Limiting structure; 50. Driving mechanism; 52. Motor; 53. Reducer; 531. Housing; 532. Transmission assembly; 54. End wall; 60. Sleeve; 62. Through hole. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any modifications to the mechanism, method, or function made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0019] The terms used herein, such as "up," "down," "left," "right," "front," and "back," indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims. Furthermore, the descriptive term "horizontal" used herein is not entirely equivalent to being perpendicular to the direction of gravity, and allows for a certain angle of inclination.

[0020] like Figure 1-4 As shown, one embodiment of the present invention provides a valve device 100. This valve device 100 can be applied in a thermal management system or other systems that require control of fluid flow.

[0021] The valve device 100 includes a valve body 10, a valve core assembly 20, a drive component 30, and a limiting structure 40. The valve core assembly 20 is disposed within the valve body 10 and includes a fixed valve component 21 and a movable valve component 22. The fixed valve component 21 has a flow passage 211, and the movable valve component 22 is rotatably disposed relative to the fixed valve component 21. When the movable valve component 22 rotates relative to the fixed valve component 21, it can adjust the opening degree of the flow passage 211, thereby adjusting the fluid flow rate that can pass through the valve device 100. The position of the fixed valve component 21 remains fixed relative to the valve body 10.

[0022] The driving component 30 is connected to the movable valve component 22 and is used to drive the movable valve component 22 to rotate around the first axis S, so that the movable valve component 22 rotates relative to the fixed valve component 21. The limiting structure 40 cooperates with the driving component 30, so that the driving component 30 can only rotate within a preset range, and the movable valve component 22 is driven to rotate by the driving component 30. Thus, the movable valve component 22 can only rotate within the preset range.

[0023] The driving member 30 includes a first extension 31 and a second extension 32. The first extension 31 extends radially, and the second extension 32 extends vertically and is connected to the first extension 31. The second extension 32 is provided with a rotating connection 34 and a limiting engagement 35. The driving member 30 is connected to the moving valve member 22 through the rotating connection 34 to drive the moving valve member 22 to rotate around the first axis S. The limiting engagement 35 cooperates with the limiting structure 40 to limit the rotation angle of the moving valve member 22.

[0024] In this embodiment, both the rotating connecting part 34 and the limiting mating part 35 are offset from the first axis S. That is, the connection part between the driving member 30 and the moving valve member 22 is offset from the first axis S, and the part of the driving member 30 that mates with the limiting structure 40 is offset from the first axis S.

[0025] It should be noted that the first extension 31 extending radially means that it extends in a direction perpendicular to the first axis S, and the second extension 32 extending vertically means that it extends in a vertical direction parallel to the first axis S. It should be understood that "radial extension" or "vertical extension" here is not a strictly geometric straight line, and may include local deformations made due to structural reinforcement, avoidance, or other requirements.

[0026] In the above configuration, the drive member 30 includes a radially extending first extension 31 and a vertically extending second extension 32. The first extension 31 and the second extension 32 form an "L"-shaped cantilever structure, causing the position of the connecting movable valve member 22 to deviate from the first axis S (i.e., the center of the movable valve member 22), so that the opening 221 on the movable valve member 22 corresponding to the flow channel opening 211 of the fixed valve member 21 can extend to the center of the movable valve member 22. When the dimensions of both the fixed valve member 21 and the movable valve member 22 are small, the opening 221 of the movable valve member 22 and the flow channel opening 211 of the fixed valve member 21 can have sufficient repeatable area, thereby ensuring the maximum flow rate that the valve device 100 can pass through. At the same time, the limiting fitting part 35 of the second extension 32 is also deviated from the first axis S, and it cooperates with the limiting structure 40 along the rotation direction of the movable valve member 22, which can ensure that the movable valve member 22 can only rotate within a predetermined range, prevent the movable valve member 22 from rotating erroneously, and ensure the normal operation of the valve device 100.

[0027] In this embodiment, the limiting fitting part 35 is located at the end of the second extension part 32.

[0028] With the above configuration, driving the first extension 31 to rotate around the first axis S will cause the second extension 32 to drive the valve member 22 to rotate around the first axis S, and the driving member 30 will be easily driven to rotate. The limiting fitting part 35 is located at the end of the second extension 32, and it cooperates with the limiting structure 40 to limit the second extension 32 to rotate only within a preset range, thereby limiting the valve member 22 to rotate only within the preset range.

[0029] In this embodiment, the limiting structure 40 includes a limiting groove 212 formed in the fixed valve member 21. The limiting groove 212 extends along the rotation direction of the movable valve member 22 and is generally arc-shaped. The limiting mating part 35 is located within the limiting groove 212 and can only move within the limiting groove 212, that is, the limiting mating part 35 is slidably accommodated within the limiting groove 212. Thus, the limiting groove 212 determines the range of rotation that the second extension part 32 can rotate in the rotation direction of the movable valve member 22, thereby limiting the range of rotation that the movable valve member 22 can rotate relative to the fixed valve member 21.

[0030] Specifically, the movable valve 22 can rotate relative to the fixed valve 21 to a first position and a second position. When the movable valve 22 rotates to the first position along the first direction, the limiting fitting portion 35 at the end of the second extension 32 abuts against the groove sidewall 2121 at one end of the limiting groove 212, preventing the second extension 32 from continuing to rotate along the first direction. When the movable valve 22 rotates to the second position along the second direction opposite to the first direction, the limiting fitting portion 35 at the end of the second extension 32 abuts against the groove sidewall 2121 at the other end of the limiting groove 212, preventing the second extension 32 from continuing to rotate along the second direction. It is conceivable that the aforementioned first and second directions are two rotational directions with opposite directions of rotation, one of which can be regarded as a clockwise rotation direction and the other as a counterclockwise rotation direction.

[0031] In this embodiment, the two sidewalls 2121 of the limiting groove 212 in the circumferential direction are in surface contact with the limiting mating part 35.

[0032] Compared to line contact or point contact, surface contact makes the force distribution between the limiting mating part 35 and the side wall of the limiting groove 212 more uniform, avoids stress concentration, and reduces the risk of local wear or deformation.

[0033] Furthermore, the two groove sidewalls 2121 are planar, and their extended surfaces intersect at the first axis S. Since both groove sidewalls 2121 are planar, and their extended surfaces intersect at the first axis S, the groove shape of the limiting groove 212 is a fan-shaped cross-section with the first axis S as its vertex.

[0034] Therefore, when the limiting fitting part 35 is stopped by one of the groove sidewalls 2121, its stopping angle is determined only by the groove angle. Machining errors and subsequent wear can only cause the contact surface to move inward or outward, but cannot cause the angle to "deviate left or right," thereby improving the limiting accuracy. When the limiting fitting part 35 contacts the groove sidewall 2121, surface contact is formed, the stress distribution is uniform, and the impact force is transmitted along the normal direction of the sidewall, which will not generate a torque that causes the driving part 30 to tilt, reducing the risk of jamming and improving the overall rigidity and service life.

[0035] In some embodiments, the second extension 32 is provided with an end wall 54 on the side away from the fixed valve member 21; the limiting structure 40 includes a limiting groove 212 formed in the end wall 54, the limiting groove 212 extends along the rotation direction of the moving valve member 22, and the limiting mating part 35 is slidably accommodated in the limiting groove 212.

[0036] The end wall 54 can be formed by a separate component or on an existing component, such as the reducer 53 housing; this is not limited here. In some embodiments, the end wall 54 is part of the reducer 53 housing 531, located above the second extension 32, and is used to provide a limiting structure.

[0037] Compared with the previous embodiment where the limiting groove 212 is provided on the fixed valve member 21, the difference is that the limiting mating part 35 is located on the opposite side of the second extension part 32, that is, the side of the second extension part 32 away from the fixed valve member 21.

[0038] Compared to creating a limiting groove 212 on the stationary valve component 21, creating a limiting groove 212 on the end wall 54 is more convenient and will not affect the seal between the moving valve component 22 and the stationary valve component 21. At the same time, it will also reduce the installation difficulty of the drive component 30.

[0039] In this embodiment, the valve core assembly 20 further includes a positioning post 23, which is disposed between the fixed valve member 21 and the moving valve member 22, and the axis of the positioning post 23 coincides with the first axis S.

[0040] By setting a positioning pin 23 between the fixed valve component 21 and the moving valve component 22, the rotation axis of the moving valve component 22 is ensured to be strictly aligned with the first axis S, avoiding eccentric movement and improving rotational accuracy. At the same time, the presence of the positioning pin 23 can also eliminate vibration and shaking caused by eccentricity.

[0041] In this embodiment, the valve device 100 further includes a drive mechanism 50 connected to the valve body 10, and the drive member 30 further includes a connecting portion 33 connecting the first extension portion 31 and the drive mechanism 50. The drive mechanism 50 is used to drive the drive member 30 to rotate around the first axis S.

[0042] The drive mechanism 50 is a device that provides rotational power to the drive member 30. Its specific form is not limited, and it can be, for example, a motor 52, a pneumatic device, etc. It is connected to the first extension 31 of the drive member 30 through the connecting part 33, and transmits power to the drive member 30, so that the drive member 30 rotates around the first axis S, thereby adjusting the rotation angle of the moving valve member 22.

[0043] Furthermore, the connecting portion 33 is integrally formed with the first extension portion 31; and / or, the second extension portion 32 is integrally formed with the first extension portion 31. Integral forming helps to simplify the manufacturing process and optimize the force transmission path, thereby improving the performance and stability of the entire device. By integrally forming the connecting portion 33 with the first extension portion 31, the second extension portion 32 with the first extension portion 31, or all three, the manufacturing and installation of the drive component 30 can be facilitated.

[0044] In this embodiment, the drive mechanism 50 includes a motor 52 and a reducer 53. The input end of the reducer 53 is connected to the output shaft of the motor 52, and the output end of the reducer 53 is connected to the connecting portion 33 of the drive member 30. When the motor 52 is working, it can drive the entire drive member 30 to rotate around the first axis S through the reducer 53. The reducer 53 increases the output torque of the motor 52, thereby enabling the drive member 30 to rotate.

[0045] The reducer 53 includes a housing 531 and a transmission assembly 532 disposed within the housing 531. The transmission assembly 532 may be composed of multiple gear sets. The transmission assembly 532 drives the motor 52 and the connecting part 33. When the motor 52 rotates, it can drive the connecting part 33 to rotate through the transmission assembly 532, thereby driving the drive member 30 to rotate.

[0046] In this embodiment, the valve device 100 further includes a sleeve 60, which surrounds the valve component 22 and is fixedly connected to the valve body 10. The peripheral wall of the sleeve 60 is provided with a through hole 62 for fluid to pass through. Multiple through holes 62 may be provided along the circumferential direction of the sleeve 60. The valve body 10 is provided with a valve core cavity, which has an inlet and an outlet. The valve core assembly 20 and the sleeve 60 are both located in the valve core cavity. Fluid entering the valve core cavity from the inlet will enter the sleeve 60 through the through hole 62, and then flow to the outlet of the valve core cavity through the flow channel 211.

[0047] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0048] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A valve device, comprising: Valve body; A valve core assembly is disposed in the valve body and includes a fixed valve component and a movable valve component. The fixed valve component has a flow channel opening, and the movable valve component is rotatably disposed relative to the fixed valve component to adjust the opening size of the flow channel opening. A driving component, connected to the movable valve component, is used to drive the movable valve component to rotate around a first axis, so that the movable valve component rotates relative to the fixed valve component; A limiting structure is provided, which cooperates with the driving member to limit the rotation angle of the moving valve member. The characteristic is that the driving component includes: A first extension, the first extension extending radially; The second extension extends vertically and is connected to the first extension. The second extension is provided with a rotating connection part and a limiting engagement part. The driving member is connected to the moving valve member through the rotating connection part to drive the moving valve member to rotate around the first axis. The limiting engagement part engages with the limiting structure to limit the rotation angle of the moving valve member. Both the rotating connecting part and the limiting fitting part are offset from the first axis.

2. The valve device according to claim 1, characterized in that: The limiting and fitting part is located at the end of the second extension.

3. The valve device according to claim 2, characterized in that, The limiting structure includes a limiting groove formed in the fixed valve member, the limiting groove extending along the rotation direction of the moving valve member, and the limiting mating part slidably accommodated in the limiting groove.

4. The valve device according to claim 3, characterized in that, The limiting groove has two sidewalls in the circumferential direction that are in surface contact with the limiting mating part.

5. The valve device according to claim 4, characterized in that, The two groove sidewalls are planar, and their extended surfaces intersect at the first axis.

6. The valve device according to claim 2, characterized in that, The second extension has an end wall on the side away from the fixed valve member; The limiting structure includes a limiting groove formed in the end wall, the limiting groove extending along the rotation direction of the moving valve, and the limiting mating part slidably accommodated in the limiting groove.

7. The valve device according to any one of claims 1-6, characterized in that, The valve device further includes a drive mechanism connected to the valve body, and the drive member further includes a connecting portion connecting the first extension and the drive mechanism. The drive mechanism is used to drive the drive member to rotate around the first axis.

8. The valve device according to claim 7, characterized in that, The connecting portion is integrally formed with the first extension portion; And / or, the second extension is integrally formed with the first extension.

9. The valve device according to claim 1, characterized in that, The valve core assembly also includes: A positioning post is disposed between the fixed valve and the moving valve, and the axis of the positioning post coincides with the first axis.

10. The valve device according to claim 1, characterized in that, The valve device further includes: A sleeve is provided around the moving valve component and fixedly connected to the valve body. The peripheral wall of the sleeve is provided with a through hole for fluid to pass through.

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