Multi-duct rotary valve
By introducing isolation components and anti-rotation assemblies into the multi-channel rotary valve, the fluid leakage problem is solved, the stable operation of the actuator and the reliability of fluid control are achieved, and the operating cost is reduced.
Patent Information
- Application Number
- CN202520261495.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-19
AI Technical Summary
In existing multi-channel rotary valves, fluid may flow into adjacent channels through the gap between the valve core and the inner wall of the valve body, affecting the stable operation of the actuator.
A multi-channel rotary valve was designed, employing a valve body and valve core structure, including a partition to isolate adjacent channels, ensuring that fluid does not flow into adjacent channels through gaps, and achieving stable positioning and sealing connection of the valve core through an anti-rotation component and a seal.
It effectively prevents fluid leakage, ensures stable operation of the actuator, reduces operating costs, and improves the reliability of fluid control.
Smart Images
Figure CN223648619U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of valve technology, and more particularly to multi-channel rotary valves. Background Technology
[0002] Valves are control components in fluid transport systems, and they come in a wide variety of types and specifications. Some valves, in order to meet the needs of connecting multiple actuators, have valve bodies with at least two inlet channels and at least two outlet channels. The corresponding valve core has at least two connecting channels. The valve core rotates within the valve body so that each connecting channel simultaneously corresponds to one inlet channel and one outlet channel, or is arbitrarily offset from one inlet channel and one outlet channel, in order to control the fluid transport.
[0003] When this type of valve is in use, fluid flowing into the corresponding connecting channel from one of the inlet channels may flow into the adjacent connecting channel through the gap between the valve core and the inner wall of the valve body, and finally be discharged from the outlet channel connected to the adjacent connecting channel. This affects the operation of the actuator connected to the corresponding outlet channel and is not conducive to the stable operation of the actuator. Utility Model Content
[0004] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a multi-channel rotary valve, the multi-channel rotary valve comprising:
[0005] A valve body having a mounting hole and a channel group, the channel group including at least two first channels and at least two second channels, both the first channels and the second channels communicating with the mounting hole, the first channels and the second channels being located in different radial directions of the mounting hole, and at least two first channels and at least two second channels being spaced apart along a direction parallel to the axial direction of the mounting hole;
[0006] A valve core is sealed and inserted into the mounting hole. The valve core has a connecting channel group, which includes at least two first connecting channels. The at least two first connecting channels are spaced apart on the periphery of the valve core along a direction parallel to the axial direction of the valve core. The valve core is configured to rotate so that each first channel and each second channel simultaneously corresponds to a first connecting channel or is arbitrarily offset from the corresponding first connecting channel.
[0007] At least one partition is installed between the valve body and the valve core, and at least one of the partitions is located between two adjacent first connecting channels to cooperate with the valve body and the valve core to isolate the two adjacent first connecting channels.
[0008] According to one embodiment of this application, the axis of each first channel and the axis of each second channel extend to intersect and intersect the axis of the mounting hole, the plane of the sidewall of the first connecting channel in its length direction is perpendicular to the axis of the valve core, and the length of the first connecting channel is adapted to the distance between the corresponding first channel and the second channel near one end of the mounting hole.
[0009] According to one embodiment of this application, the channel group includes at least one third channel communicating with the mounting hole. Each third channel is disposed opposite to a second channel and symmetrically distributed on both sides of a first channel. The valve core rotates so that a first channel corresponds to a first connecting channel and any one of a second channel and a third channel corresponds to the corresponding first connecting channel.
[0010] According to one embodiment of this application, the channel group further includes at least one fourth channel communicating with the mounting hole. Each fourth channel and a first channel are respectively located on both sides of a second channel. The connecting channel group includes at least one second connecting channel. The second connecting channel is formed on the periphery of the valve core and is located on the opposite side of the valve core to the first connecting channel. The valve core is rotatable so that a second channel and a first channel simultaneously correspond to a first connecting channel, or the corresponding second channel and a fourth channel simultaneously correspond to a second connecting channel.
[0011] According to one embodiment of this application, a first channel, a second channel, a third channel, and a fourth channel are equidistantly distributed around the mounting hole, and a second connecting channel and a first connecting channel are axially symmetrically distributed along the axis of the valve core. The valve core is rotated 90 degrees so that the first channel corresponds to the first connecting channel and any one of the second channel and the third channel corresponds to the first connecting channel, the fourth channel corresponds to the second connecting channel, and the other one of the second channel and the third channel corresponds to the second connecting channel.
[0012] According to one embodiment of this application, the number of the first channel, the second channel, the third channel, the fourth channel, the first connecting channel, and the second connecting channel are all the same.
[0013] According to one embodiment of this application, the valve core includes a core body and a handle, the connecting channel assembly is formed in the core body, the core body is rotatably and sealingly inserted into the mounting hole, and a portion of the core body extends out of the mounting hole and is connected to the handle.
[0014] According to one embodiment of this application, the multi-channel rotary valve further includes an anti-rotation assembly, which includes an anti-rotation member and an anti-rotation structure. The anti-rotation structure is disposed on the valve body. The anti-rotation member is slidable along a direction parallel to the axial direction of the valve core to separate from or be mounted on the valve core in contact with the anti-rotation structure. When the anti-rotation member slides along a direction parallel to the axial direction of the valve core to engage with the anti-rotation structure, the valve core is locked to the valve body through the cooperation of the anti-rotation member and the anti-rotation structure.
[0015] According to one embodiment of this application, the anti-rotation element is implemented as a pin, and the anti-rotation structure is implemented as two insertion holes. Both insertion holes are formed at one end of the valve body near the handle, and the angle between the line connecting the axis of each of the two insertion holes and the axis of the mounting hole is 90 degrees. The pin is slidable along a direction parallel to the axial direction of the core body to be mounted on the handle close to or away from the valve body. The rotation trajectories of the two insertion holes and the pin, which is spaced apart from the valve body, are opposite to those of the valve core. The valve core rotates so that the pin provided on the handle corresponds to either of the two insertion holes. The pin locks the valve core to the valve body by inserting into the corresponding insertion hole.
[0016] According to one embodiment of this application, the multi-channel rotary valve further includes two sealing elements, which are respectively disposed at both ends of the mounting hole. The sealing elements are located between the core body and the valve body, which are inserted into the mounting hole, and the core body is sealed to the valve body through the sealing elements. Attached Figure Description
[0017] Figure 1 A schematic diagram of the multi-channel rotary valve described in this application is shown.
[0018] Figure 2 A cross-sectional view of the valve body structure of the multi-channel rotary valve described in this application is shown.
[0019] Figure 3 A structural cross-sectional view of the multi-channel rotary valve described in this application is shown.
[0020] Figure 4 Another structural cross-sectional view of the multi-channel rotary valve described in this application is shown. Detailed Implementation
[0021] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.
[0022] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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 this application 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, the above terms should not be construed as limitations on this application.
[0023] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0024] refer to Figures 1 to 3 A preferred embodiment of the multi-channel rotary valve according to this application will be described in detail below. The multi-channel rotary valve includes a valve body 10, the valve body 10 having a mounting hole 101 and a channel group 102. The channel group 102 includes at least two first channels 1021 and at least two second channels 1022, both of which communicate with the mounting hole 101. The first channels 1021 and the second channels 1022 are located in different radial directions of the mounting hole 101, and at least two first channels 1021 and at least two second channels 1022 are spaced apart along a direction parallel to the axial direction of the mounting hole 101.
[0025] The multi-channel rotary valve includes a valve core 20, which is sealed and inserted into the mounting hole 101. The valve core 20 has a connecting channel group 201, which includes at least two first connecting channels 2011. These at least two first connecting channels 2011 are spaced apart along a direction parallel to the axial direction of the valve core 20 and distributed around its periphery. The valve core 20 is rotatable such that each first channel 1021 and each second channel 1022 simultaneously corresponds to a first connecting channel 2011 or is arbitrarily offset from a corresponding first connecting channel 2011. When each first channel 1021 and each second channel 1022 simultaneously corresponds to a first connecting channel 2011, the first channel 1021 communicates with the second channel 1022 through the corresponding first connecting channel 2011. When each of the first channel 1021 and the second channel 1022 is arbitrarily offset from the corresponding first connecting channel 2011, the first channel 1021 and the second channel 1022 are isolated by the valve core 20.
[0026] refer to Figure 4 The multi-channel rotary valve further includes at least one isolation member 30, which is installed between the valve body 10 and the valve core 20. At least one isolation member 30 is located between two adjacent first connecting channels 2011 to cooperate with the valve body 10 and the valve core 20 to isolate the two adjacent first connecting channels 2011, so as to prevent fluid in one first connecting channel 2011 from flowing into the other adjacent first connecting channel 2011 through the gap between the valve core 20 and the valve body 10, thereby ensuring that the actuator connected to the multi-channel rotary valve can operate stably.
[0027] Preferably, the partition 30 is implemented as a sealing ring.
[0028] Preferably, the axis of each first channel 1021 and the axis of each second channel 1022 extend to intersect and intersect the axis of the mounting hole 101. The plane containing the sidewall of the first connecting channel 2011 in its length direction is perpendicular to the axis of the valve core 20, and the length of the first connecting channel 2011 is adapted to the distance between the corresponding first channel 1021 and second channel 1022 near one end of the mounting hole 101.
[0029] As deformable, the axis of each of the first channels 1021 and the axis of each of the second channels 1022 extend to intersect the axis of the mounting hole 101. The first connecting channel 2011 has a spiral design, and the distance between the two ends of the first connecting channel 2011 is adapted to the distance between the corresponding ends of the first channel 1021 and the second channel 1022 near one end of the mounting hole 101.
[0030] refer to Figures 2 to 3It is worth mentioning that the channel group 102 includes at least one third channel 1023 communicating with the mounting hole 101. Each third channel 1023 is disposed opposite to a second channel 1022 and symmetrically distributed on both sides of a first channel 1021. The valve core 20 rotates so that a first channel 1021 corresponds to a first connecting channel 2011, and any one of the second channel 1022 and the third channel 1023 corresponds to the corresponding first connecting channel 2011. When both the first channel 1021 and the second channel 1022 correspond to the first connecting channel 2011, the first channel 1021 is connected to the second channel 1022 through the first connecting channel 2011; when both the first channel 1021 and the third channel 1023 correspond to the first connecting channel 2011, the first channel 1021 is connected to the third channel 1023 through the first connecting channel 2011, thereby changing the fluid flow path introduced by the first channel 1021 or the fluid flow path guided to the first channel 1021.
[0031] The channel group 102 further includes at least one fourth channel 1024 communicating with the mounting hole 101, and each of the fourth channels 1024 and a first channel 1021 is respectively located on both sides of a second channel 1022. The connecting channel group 201 includes at least one second connecting channel 2012, which is formed on the periphery of the valve core 20 and is located on the opposite side of the valve core 20 from the first connecting channel 2011. The valve core 20 is rotatable so that a second channel 1022 and a first channel 1021 simultaneously correspond to a first connecting channel 2011, or the corresponding second channel 1022 and a fourth channel 1024 simultaneously correspond to a second connecting channel 2012. When a second channel 1022 and a first channel 1021 simultaneously correspond to a first connecting channel 2011, the second channel 1022 is connected to the first channel 1021 through the first connecting channel 2011; when a corresponding second channel 1022 and a fourth channel 1024 simultaneously correspond to a second connecting channel 2012, the second channel 1022 is connected to the fourth channel 1024 through the second connecting channel 2012, so as to change the fluid flow path introduced by the second channel 1022 or the fluid flow path guided to the second channel 1022.
[0032] refer to Figure 3Preferably, a first channel 1021, a second channel 1022, a third channel 1023, and a fourth channel 1024 are equidistantly distributed around the mounting hole 101, and a second connecting channel 2012 and a first connecting channel 2011 are axially symmetrically distributed along the axis of the valve core 20. The valve core 20 is rotated 90 degrees so that the first channel 1021 corresponds to the first connecting channel 2011, and any one of the second channel 1022 and the third channel 1023 corresponds to the first connecting channel 2011; the fourth channel 1024 corresponds to the second connecting channel 2012, and the other one of the second channel 1022 and the third channel 1023 corresponds to the second connecting channel 2012.
[0033] When the first channel 1021 corresponds to the first connecting channel 2011 and either the second channel 1022 or the third channel 1023 corresponds to the first connecting channel 2011, the first channel 1021 is connected to the second channel 1022 or the third channel 1023 through the first connecting channel 2011; when the fourth channel 1024 corresponds to the second connecting channel 2012 and the other of the second channel 1022 or the third channel 1023 corresponds to the second connecting channel 2012, the fourth channel 1024 is connected to the third channel 1023 or the second channel 1022 through the second connecting channel 2012, thereby changing the fluid flow path.
[0034] Preferably, the number of the first channel 1021, the second channel 1022, the third channel 1023, the fourth channel 1024, the first connecting channel 2011, and the second connecting channel 2012 are all the same, so that the flow path of multiple fluids can be changed by rotating the valve core 20.
[0035] refer to Figure 4 The valve core 20 includes a core body 21 and a handle 22. The connecting channel assembly 201 is formed in the core body 21. The core body 21 is rotatably and sealingly inserted into the mounting hole 101. A portion of the core body 21 extends out of the mounting hole 101 and is connected to the handle 22. By rotating the handle 22, the core body 21 is rotated to control the flow and direction of fluid.
[0036] Preferably, the handle 22 is detachably connected to the core body 21 so that when the core body 21 needs to be replaced due to blockage or contamination, only the core body 21 needs to be replaced, thereby reducing the cost of use.
[0037] Preferably, the handle 22 is connected to the core body 21 by a bolt to form an integral unit.
[0038] The valve core 20 also includes two limiting members 23. One limiting member 23 is formed on the periphery of one end of the core body 21 near the handle 22, and the other limiting member 23 is detachably installed on one end of the core body 21 away from the handle 22. The core body 21 is inserted into the mounting hole 101 with the two limiting members 23 respectively abutting against the two ends of the valve body 10, so that the two limiting members 23 prevent the core body 21 from moving axially, so that the flow control operation can be performed normally.
[0039] Preferably, one of the limiting members 23 is connected to the core body 21 as a whole by a bolt.
[0040] refer to Figure 1 and Figure 4 The multi-channel rotary valve further includes an anti-rotation assembly 40, which includes an anti-rotation element 41 and an anti-rotation structure 42. The anti-rotation structure 42 is disposed on the valve body 10. The anti-rotation element 41 is slidable along a direction parallel to the axial direction of the valve core 20 to separate from or be mounted to the valve core 20 in contact with the anti-rotation structure 42. When the anti-rotation element 41 slides along a direction parallel to the axial direction of the valve core 20 to engage with the anti-rotation structure 42, the valve core 20 is locked to the valve body 10 through the cooperation of the anti-rotation element 41 and the anti-rotation structure 42, so that the valve core 20 is held in the position after rotation.
[0041] Preferably, the anti-rotation member 41 is implemented as a pin, and the anti-rotation structure 42 is implemented as two insertion holes. Both insertion holes are formed at one end of the valve body 10 near the handle 22, and the angle between the line connecting the axis of each insertion hole and the axis of the mounting hole 101 is 90 degrees. The pin is slidable along a direction parallel to the axial direction of the core body 21 to be mounted on the handle 22 near or away from the valve body 10. The rotation trajectories of the two insertion holes and the pin, which are spaced apart from the valve body 10, are opposite to those of the valve core 20. The valve core 20 rotates so that the pin on the handle 22 corresponds to either of the two insertion holes, and the pin locks the valve core 20 to the valve body 10 by inserting into the corresponding insertion hole.
[0042] It is worth mentioning that two rotation-limiting protrusions 11 are formed at one end of the valve body 10 near the handle 22, and the two rotation-limiting protrusions 11 are respectively located on both sides of the handle 22. When the handle 22 is rotated so that the pin provided on the handle 22 corresponds to either of the two holes, the handle 22 simultaneously abuts against the two rotation-limiting protrusions 11 to limit the maximum rotation angle of the valve core 20.
[0043] In one embodiment, the anti-rotation member 41 is implemented as a movable gear, and the anti-rotation structure 42 is implemented as a fixed gear. The fixed gear is fixed to the valve body 10. The movable gear is sleeved on one end of the core body 21 where the handle 22 is mounted, and the movable gear can rotate synchronously with the valve core 20 when it rotates. The movable gear can be moved along the axial direction of the core body 21 to engage or disengage with the fixed gear. After the valve core 20 rotates, the movable gear moves along the axial direction of the core body 21 closer to the fixed gear to engage with the fixed gear, and the valve core 20 is locked to the valve body 10 by the engagement of the movable gear and the fixed gear.
[0044] refer to Figure 4 The multi-channel rotary valve further includes two sealing elements 50, which are respectively disposed at both ends of the mounting hole 101. The sealing elements 50 are located between the core body 21 and the valve body 10 inserted into the mounting hole 101, and the core body 21 is sealed to the valve body 10 through the sealing elements 50.
[0045] Preferably, the seal 50 is implemented as a sealing ring.
[0046] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.
Claims
1. A multi-channel rotary valve, characterized in that, The multi-channel rotary valve includes: A valve body having a mounting hole and a channel group, the channel group including at least two first channels and at least two second channels, both the first channels and the second channels communicating with the mounting hole, the first channels and the second channels being located in different radial directions of the mounting hole, and at least two first channels and at least two second channels being spaced apart along a direction parallel to the axial direction of the mounting hole; A valve core is sealed and inserted into the mounting hole. The valve core has a connecting channel group, which includes at least two first connecting channels. The at least two first connecting channels are spaced apart on the periphery of the valve core along a direction parallel to the axial direction of the valve core. The valve core is configured to rotate so that each first channel and each second channel simultaneously corresponds to a first connecting channel or is arbitrarily offset from the corresponding first connecting channel. At least one partition is installed between the valve body and the valve core, and at least one of the partitions is located between two adjacent first connecting channels to cooperate with the valve body and the valve core to isolate the two adjacent first connecting channels.
2. The multi-channel rotary valve according to claim 1, characterized in that, The axis of each first channel and the axis of each second channel extend to intersect and intersect the axis of the mounting hole. The plane containing the sidewall of the first connecting channel in its length direction is perpendicular to the axis of the valve core, and the length of the first connecting channel is adapted to the distance between the corresponding first channel and the end of the second channel near the mounting hole.
3. The multi-channel rotary valve according to claim 1 or 2, characterized in that, The channel group includes at least one third channel communicating with the mounting hole. Each third channel is disposed opposite to a second channel and symmetrically distributed on both sides of a first channel. The valve core rotates so that a first channel corresponds to a first connecting channel and any one of the second channel and the third channel corresponds to the corresponding first connecting channel.
4. The multi-channel rotary valve according to claim 3, characterized in that, The channel group further includes at least one fourth channel communicating with the mounting hole. Each fourth channel and a first channel are respectively located on both sides of a second channel. The connecting channel group includes at least one second connecting channel. The second connecting channel is formed on the periphery of the valve core and is located on the opposite side of the valve core from the first connecting channel. The valve core is rotatable so that a second channel and a first channel simultaneously correspond to a first connecting channel, or the corresponding second channel and a fourth channel simultaneously correspond to a second connecting channel.
5. The multi-channel rotary valve according to claim 4, characterized in that, A first channel, a second channel, a third channel, and a fourth channel are equidistantly distributed around the mounting hole, and a second connecting channel and a first connecting channel are axially symmetrically distributed along the axis of the valve core. The valve core is rotated 90 degrees so that the first channel corresponds to the first connecting channel, and any one of the second channel and the third channel corresponds to the first connecting channel; the fourth channel corresponds to the second connecting channel, and the other one of the second channel and the third channel corresponds to the second connecting channel.
6. The multi-channel rotary valve according to claim 5, characterized in that, The number of the first channel, the second channel, the third channel, the fourth channel, the first connecting channel, and the second connecting channel are all the same.
7. The multi-channel rotary valve according to claim 5, characterized in that, The valve core includes a core body and a handle. The connecting channel assembly is formed in the core body. The core body is rotatably and sealingly inserted into the mounting hole. A portion of the core body extends out of the mounting hole and is connected to the handle.
8. The multi-channel rotary valve according to claim 7, characterized in that, The multi-channel rotary valve further includes an anti-rotation assembly, which includes an anti-rotation element and an anti-rotation structure. The anti-rotation structure is disposed on the valve body. The anti-rotation element is slidable along a direction parallel to the axial direction of the valve core to separate from or be mounted on the valve core. When the anti-rotation element slides along a direction parallel to the axial direction of the valve core to engage with the anti-rotation structure, the valve core is locked to the valve body through the cooperation of the anti-rotation element and the anti-rotation structure.
9. The multi-channel rotary valve according to claim 8, characterized in that, The anti-rotation element is implemented as a pin, and the anti-rotation structure is implemented as two insertion holes. Both insertion holes are formed at one end of the valve body near the handle, and the angle between the line connecting the axis of each of the two insertion holes and the axis of the mounting hole is 90 degrees. The pin can be slidably mounted on the handle in a direction parallel to the axis of the core body to be close to or away from the valve body. The rotation trajectories of the two insertion holes and the pin, which is spaced apart from the valve body, are opposite to those of the valve core. The valve core rotates so that the pin provided on the handle corresponds to either of the two insertion holes. The pin locks the valve core to the valve body by inserting into the corresponding insertion hole.
10. The multi-channel rotary valve according to claim 7, characterized in that, The multi-channel rotary valve also includes two sealing elements, which are respectively disposed at both ends of the mounting hole. The sealing elements are located between the core body and the valve body, which are inserted into the mounting hole, and the core body is sealed to the valve body through the sealing elements.