Pinch valve with multi-channel switching
By using a clamp valve design, a spring-supported pressure rod is used to radially press the hose to block fluid flow, and a rotating plate controls the movement of the pressure rod. This solves the problem of valve body damage caused by direct contact with fluid and achieves a protective effect for the valve body.
Patent Information
- Application Number
- CN202520511325.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-24
AI Technical Summary
The valve body of existing multi-channel switching valves is subject to corrosion or damage due to direct contact with the fluid.
The device employs a clamp valve design, in which a spring-loaded elastic support rod radially presses against the hose to block fluid flow. The rotating plate moves the rod to avoid contact with the fluid, thus achieving fluid switching.
This reduces the impact of fluid corrosion and impurities on the valve body, extending its service life.
Smart Images
Figure CN223725516U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of liquid valve, in particular to a pinch valve with multi-channel switching. BACKGROUND
[0002] The existing multi-channel switching valve, when the valve core is in a certain position, the fluid can flow from the inlet to the outlet through the valve core, at this time the bypass port is in the closed state. When the valve core rotates or moves to another position, the fluid can flow from the inlet to the bypass port through the valve core, at this time the outlet is in the closed state. By constantly changing the position of the valve core, the fluid can be flexibly switched between the outlet and the bypass port.
[0003] In the prior art, the valve body of the multi-channel switching valve is directly contacted with the fluid, and the valve body is damaged by the corrosion of the fluid or the impurities in the fluid. How to solve the above technical problems is a problem that needs to be considered by those skilled in the art. CONTENT OF THE UTILITY MODEL
[0004] The present application provides a pinch valve with multi-channel switching to solve the problem of how to reduce the damage of the valve body caused by the influence of the fluid.
[0005] The embodiment of the present application provides a pinch valve with multi-channel switching, which comprises a switching piece and a pinch valve piece. The switching piece comprises a rotating plate. The pinch valve piece comprises a shell, a pressing rod and a spring, the shell is provided with a pinch groove and a guide groove, the pinch groove is used for placing a hose, the guide groove is communicated with the pinch groove along the radial direction of the hose, the pressing rod is movably arranged in the guide groove, the spring elastically supports the pressing rod to press the hose along the radial direction, the rotating plate is detachably abutted with the pressing rod, and the rotating plate can be rotated to a position corresponding to the pressing rod and abut the pressing rod to press or release the hose.
[0006] Compared with the prior art, the pinch valve with multi-channel switching provided by the embodiment can press the hose along the radial direction by the spring elastically supporting the pressing rod, so that the hose is pressed flat by the pressing rod to block the flow of fluid in the hose; the rotating plate is rotated to a position corresponding to the pressing rod, the rotating plate drives the pressing rod to move away from the hose, the pressing rod overcomes the elastic force of the spring and separates from the hose, and the hose restores the shape to flow the fluid. In this way, the pinch valve piece can press the hose by the pressing rod to block the flow of fluid or release the hose to flow the fluid, avoid the direct contact of the pinch valve piece with the fluid, and reduce the corrosion of the valve body by the fluid or the influence of the impurities in the fluid, so as to achieve the effect of reducing the damage of the valve body caused by the influence of the fluid.
[0007] In a possible implementation, the pinch valve with multi-channel switching further comprises a disc base, one end of the pressing rod is rotatably arranged at the middle of the disc base, the other end extends towards the periphery of the disc base, a plurality of the pinch valve elements are distributed at the periphery of the disc base, and the rotating plate rotates to a corresponding one of the pinch valve elements to release the corresponding soft tube by the pressing rod.
[0008] In a possible implementation, the disc base comprises a disc plate and a ring plate, the ring plate is fixedly connected with the periphery of the disc plate, the housing of the pinch valve element is fixedly connected with the ring plate, one end of the pressing rod is arranged in the guide groove, the other end extends through the ring plate and towards the middle of the disc plate, and the spring is elastically supported between the ring plate and the pressing rod.
[0009] In a possible implementation, the pinch valve element further comprises a magnet and a Hall sensor, the magnet is arranged on the rotating plate, the Hall sensor is arranged on the disc base, when the rotating plate drives the magnet to rotate to a position corresponding to the Hall sensor, the rotating plate stops rotating and abuts against the pressing rod to release the soft tube.
[0010] In a possible implementation, the pinch valve element further comprises a motor, the housing of the motor is fixedly connected with the disc base, the rotating shaft of the motor is used to drive the rotating plate to rotate, and the Hall sensor is electrically connected with the motor.
[0011] In a possible implementation, the pressing rod comprises an integrated pressing head and a rod body, the pressing head is arranged in the guide groove, the rod body extends from the guide groove towards the rotating plate, and the rod body can be driven to move the pressing head to the pinch groove and radially press the soft tube.
[0012] In a possible implementation, the pressing head comprises a pressing piece and a guide head, the pressing piece is arranged at a position close to the pinch groove, the peripheral surface of the guide head is matched with the groove wall of the guide groove, one end of the guide head is connected with the pressing piece, and the other end is connected with the rod body.
[0013] In a possible implementation, the peripheral surface of the guide head is recessed to form a groove, the groove extends along the radial direction, the groove wall of the guide groove is provided with a limiting pin, the limiting pin extends from the groove wall to the groove, and the limiting pin is used to limit the radial movement of the guide head.
[0014] In a possible implementation, the rod body is provided with an abutting head, the rotating plate is provided with a slide, the abutting head is separably abutted with the side wall of the slide, the slide is rotatably driven, and the side wall of the slide abuts against the abutting head to make the rod body move along the radial direction. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced as follows. Obviously, the drawings only illustrate some of the embodiments of the present application, and should not be considered as limiting the scope. Other related drawings can be obtained by those skilled in the art without any creative effort.
[0016] Figure 1 A perspective view of a pinch valve with multi-channel switching and a hose according to an embodiment of the present application;
[0017] Figure 2 A perspective view of another view of the pinch valve with multi-channel switching of Figure 1
[0018] Figure 3 A perspective view of part of the pinch valve with multi-channel switching of Figure 1
[0019] Figure 4 A structural schematic view of the pinch valve with multi-channel switching of Figure 3
[0020] Figure 5 A perspective view of the pressure rod and spring of the pinch valve with multi-channel switching of Figure 1
[0021] Main element symbol explanation:
[0022] 1. Pinch valve with multi-channel switching; 11. Switching piece; 111. Turn plate; 112. Slide; 12. Pinch valve piece; 13. Shell; 131. Pinch groove; 132. Through hole; 133. Notch; 134. Guide groove; 14. Pressure rod; 141. Pressure head; 142. Pressure sheet; 143. Guide head; 144. Groove; 145. Rod body; 146. Limiting pin; 147. Resisting head; 15. Spring; 16. Magnet; 17. Hall sensor; 18. Motor; 19. Disc base; 191. Disc; 192. Ring plate; 2. Hose; 3. Radial. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.
[0024] Some embodiments of the present application will be described in detail. The following embodiments and features in the embodiments can be combined with each other without conflict.
[0025] EMBODIMENT
[0026] Referring to Figures 1 to 5 As shown in the drawings, the embodiment provides a pinch valve 1 with multi-channel switching, comprising a switching piece 11 and a pinch valve piece 12. The switching piece 11 comprises a rotating plate 111. The pinch valve piece 12 comprises a shell 13, a pressing rod 14 and a spring 15, the shell 13 is provided with a pinch groove 131 for placing a hose 2 and a guide groove 134 communicating with the pinch groove 131 along a radial direction 3 of the hose 2, the pressing rod 14 is movably arranged in the guide groove 134, the spring 15 elastically supports the pressing rod 14 to press the hose 2 along the radial direction 3, the rotating plate 111 is detachably abutted with the pressing rod 14, and the rotating plate 111 can be rotated to a position corresponding to the pressing rod 14 and abut the pressing rod 14 to press or release the hose 2.
[0027] The pinch valve 1 with multi-channel switching provided by the embodiment elastically supports the pressing rod 14 by the spring 15 to press the hose 2 along the radial direction 3, the hose 2 is pressed flat by the pressing rod 14 to block the fluid flow in the hose 2; the rotating plate 111 is rotated to a position corresponding to the pressing rod 14, the rotating plate 111 drives the pressing rod 14 to move towards a position away from the hose 2, the pressing rod 14 overcomes the elastic force of the spring 15 and separates from the hose 2, the hose 2 restores the shape to flow the fluid, so that the pinch valve piece 12 presses the hose 2 by the pressing rod 14 to block the fluid flow or releases the hose 2 to flow the fluid, avoiding the direct contact of the pinch valve piece 12 with the fluid, thereby reducing the corrosion of the pinch valve piece 12 by the fluid or the influence of impurities in the fluid, to reduce the damage of the pinch valve piece 12 caused by the fluid.
[0028] In the embodiment, the hose 2 is used to transport fluid, and the fluid includes but is not limited to liquid, reagent, etc., the hose 2 enters from one end of the pinch groove 131 and exits from the other end of the pinch groove 131.
[0029] The pinch groove 131 comprises a through hole 132 and a gap 133, the hose 2 is arranged in the through hole 132 and extends along the length direction of the through hole 132, the hose 2 is pressed flat and deformed by the pressing force of the pressing rod 14, and a part of the hose 2 is extruded into the gap 133 and the other part remains in the through hole 132.
[0030] The guide groove 134 corresponds to the through hole 132 and the gap 133 along the radial direction 3, the pressing rod 14 moves to the through hole 132 and the gap 133 through the guide groove 134 and presses the hose 2, thereby blocking the fluid flow in the hose 2.
[0031] In a possible implementation, the pinch valve 1 with multi-channel switching further comprises a disc base 19, one end of the pressing rod 14 is rotatably arranged at the middle of the disc base 19, the other end extends towards the periphery of the disc base 19, a plurality of pinch valve elements 12 are distributed at the periphery of the disc base 19, and the rotating plate 111 rotates to a corresponding one of the pinch valve elements 12 to release the corresponding soft tube 2 by the pressing rod 14.
[0032] In the embodiment, a plurality of soft tubes 2 are provided, each of which is used to transport a different reagent. A plurality of pinch valve elements 12 are provided, and each of the soft tubes 2 corresponds to one of the pinch valve elements 12. The rotating plate 111 rotates to a position corresponding to one of the pinch valve elements 12 to make the corresponding soft tube 2 flow through the reagent, and the rotating plate 111 rotates to a position corresponding to another one of the pinch valve elements 12 to make another soft tube 2 flow through the reagent. It can be understood that when a certain reagent is needed, the pinch valve element 12 corresponding to the soft tube 2 is opened.
[0033] In a possible implementation, the disc base 19 comprises a disc plate 191 and a ring plate 192, the ring plate 192 is fixedly connected with the periphery of the disc plate 191, the housing 13 of the pinch valve element 12 is fixedly connected with the ring plate 192, one end of the pressing rod 14 is arranged in the guide groove 134, the other end extends through the ring plate 192 and extends towards the middle of the disc plate 191, and the spring 15 is elastically supported between the ring plate 192 and the pressing rod 14.
[0034] In the embodiment, the disc plate 191 and the ring plate 192 are connected to form an accommodating cavity, the rotating plate 111 is rotatably arranged in the accommodating cavity, the pressing rods 14 of the plurality of pinch valve elements 12 extend into the accommodating cavity, and the rotating plate 111 rotates to a position corresponding to one of the pressing rods 14 and abuts against the pressing rod 14 to press or release the corresponding soft tube 2.
[0035] In a possible implementation, the pinch valve element 12 further comprises a magnet 16 and a Hall sensor 17, the magnet 16 is arranged on the rotating plate 111, the Hall sensor 17 is arranged on the disc base 19, and when the rotating plate 111 drives the magnet 16 to rotate to a position corresponding to the Hall sensor 17, the rotating plate 111 stops rotating and abuts against the pressing rod 14 to release the soft tube 2. The pinch valve element 12 further comprises a motor 18, a housing of the motor 18 is fixedly connected with the disc base 19, a rotating shaft of the motor 18 is used to drive the rotating plate 111 to rotate, and the Hall sensor 17 is electrically connected with the motor 18.
[0036] In the embodiment, the magnet 16 is a magnet. The Hall sensor 17 is fixedly connected with the disc plate 191, a plurality of Hall sensors 17 are provided, and each of the Hall sensors 17 corresponds to one of the pinch valve elements 12. When the rotating plate 111 drives the magnet 16 to rotate to a position corresponding to one of the pinch valve elements 12, the corresponding Hall sensor 17 senses the magnet 16 and sends a signal to the motor 18, so that the motor 18 stops rotating, and thus the rotating plate 111 stops rotating and abuts against the pressing rod 14 to release the soft tube 2.
[0037] In a possible implementation, the pressing rod 14 comprises an integral pressing head 141 and a rod body 145, the pressing head 141 is arranged in the guide groove 134, and the rod body 145 extends from the guide groove 134 towards the rotating plate 111, the rod body 145 can be forced to drive the pressing head 141 to move to the pipe clamping groove 131 and press the soft pipe 2 along the radial direction 3.
[0038] In the embodiment, the opening of the guide groove 134 of the shell 13 is arranged towards the ring plate 192, the spring 15 is sleeved on the rod body 145, and the spring 15 is elastically supported between the ring plate 192 and the pressing head 141, so that the spring 15 elastically supports the pressing head 141 to press the soft pipe 2. When the rotating plate 111 rotates to move the rod body 145 towards a position away from the soft pipe 2, the spring 15 is compressed under force, and the pressing head 141 releases the soft pipe 2.
[0039] In a possible implementation, the pressing head 141 comprises a pressing plate 142 and a guide head 143, the pressing plate 142 is arranged at a position close to the pipe clamping groove 131, the peripheral surface of the guide head 143 is matched with the groove wall of the guide groove 134, one end of the guide head 143 is connected with the pressing plate 142, and the other end is connected with the rod body 145.
[0040] In the embodiment, the guide head 143 moves along the radial direction 3 in the guide groove 134. The pressing plate 142 extends along the radial direction 3 of the soft pipe 2, and the length of the pressing plate 142 is greater than the diameter of the soft pipe 2, so that when the pressing plate 142 presses the soft pipe 2, the soft pipe 2 is deformed by being flattened, and the pressing plate 142 can press and close the soft pipe 2.
[0041] In a possible implementation, the peripheral surface of the guide head 143 is recessed to form a recess 144, the recess 144 extends along the radial direction 3, and the groove wall of the guide groove 134 is provided with a limiting pin 146, the limiting pin 146 extends from the groove wall to the recess 144, and the limiting pin 146 is used to limit the radial direction 3 movement of the guide head 143.
[0042] In the embodiment, the limiting pin 146 corresponds to the bottom wall of the recess 144, when the pressing plate 142 presses the soft pipe 2, the limiting pin 146 contacts the bottom wall of the recess 144, so that the guide head 143 stops moving, and thus the limiting pin 146 limits the moving position of the pressing plate 142 along the radial direction 3. At the same time, the limiting pin 146 corresponds to the side wall of the recess 144, so that the limiting pin 146 limits the rotation of the guide head 143, which is conducive to the movement of the pressing plate 142 towards the soft pipe 2 and the pressing of the soft pipe 2.
[0043] In a possible implementation, the rod 145 is provided with a contact head 147, the rotating plate 111 is provided with a slide 112, the contact head 147 is detachably contacted with the sidewall of the slide 112, the slide 112 is forced to rotate and the sidewall of the slide 112 contacts the contact head 147 so that the rod 145 moves along the radial direction 3.
[0044] In the embodiment, the rod 145 is matched with the slide 112 of the rotating plate 111 through the contact head 147, so that when the rotating plate 111 rotates to the position corresponding to the rod 145 of the pinch valve 12, the rotating plate 111 drives the rod 145 to contact or release the hose 2.
[0045] In summary, the pinch valve 1 with multi-channel switching provided in the embodiment is elastically supported by the spring 15 to make the pressing rod 14 press the hose 2 along the radial direction 3, the hose 2 is pressed by the pressing rod 14 so as to block the fluid flow in the hose 2; the rotating plate 111 rotates to the position corresponding to the pressing rod 14, the rotating plate 111 drives the pressing rod 14 to move away from the hose 2, the pressing rod 14 overcomes the elastic force of the spring 15 and separates from the hose 2, the hose 2 restores the shape so as to flow the fluid, so that the pinch valve 12 presses the hose 2 through the pressing rod 14 to block the fluid flow or releases the hose 2 to flow the fluid, avoids the direct contact between the pinch valve 12 and the fluid, so as to reduce the corrosion of the pinch valve 12 by the fluid or the influence of impurities in the fluid, so as to reduce the damage of the pinch valve 12 caused by the fluid.
[0046] The above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, although the present application is described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by the equivalent without departing from the spirit and scope of the present application.
Claims
1. A pinch valve with multi-pass switching, characterized in that, Comprising: Switching piece, including rotating plate; Clamp valve piece, including shell, pressing rod and spring, the shell is provided with clamp groove and guide groove, the clamp groove is used for placing hose, the guide groove is communicated with the clamp groove along the radial direction of the hose, the pressing rod is movably arranged in the guide groove, the spring elastically supports the pressing rod to make the pressing rod press the hose along the radial direction, the rotating plate is detachably abutted with the pressing rod, the rotating plate can be rotated to the position corresponding to the pressing rod and abutted with the pressing rod to press or release the hose.
2. The pinch valve with multi-pass switching of claim 1, wherein, Also comprising: Disc base, one end of the pressing rod is rotatably arranged in the middle of the disc base, the other end extends towards the circumference of the disc base, a plurality of clamp valve pieces are distributed at the circumference of the disc base, the rotating plate is rotated to the corresponding one of the clamp valve pieces to release the corresponding hose by the pressing rod.
3. The clamp valve with multi-channel switching according to claim 2, wherein: The disc base comprises a circular plate and a ring plate, the ring plate is fixedly connected with the circumference of the circular plate, the shell of the clamp valve piece is fixedly connected with the ring plate, one end of the pressing rod is arranged in the guide groove, the other end extends through the ring plate and towards the middle of the circular plate, and the spring is elastically supported between the ring plate and the pressing rod.
4. The clamp valve with multi-channel switching according to claim 2, wherein: The clamp valve piece further comprises a magnet and a Hall sensor, the magnet is arranged on the rotating plate, the Hall sensor is arranged on the disc base, when the rotating plate drives the magnet to rotate to the position corresponding to the Hall sensor, the rotating plate stops rotating and abuts against the pressing rod to release the hose.
5. The clamp valve with multi-channel switching according to claim 4, wherein: The clamp valve piece further comprises a motor, the motor housing is fixedly connected with the disc base, the rotating shaft of the motor is used to drive the rotating plate to rotate, and the Hall sensor is electrically connected with the motor.
6. The clamp valve with multi-channel switching according to claim 1, wherein: The pressing rod comprises an integrated pressing head and rod body, the pressing head is arranged in the guide groove, and the rod body extends from the guide groove towards the rotating plate, the rod body can be driven to move the pressing head to the clamp groove and press the hose along the radial direction.
7. The clamp valve with multi-channel switching according to claim 6, wherein: The pressing head comprises a pressing piece and a guide head, the pressing piece is arranged at a position close to the clamp groove, the peripheral surface of the guide head is matched with the groove wall of the guide groove, one end of the guide head is connected with the pressing piece, and the other end is connected with the rod body.
8. The clamp valve with multi-channel switching according to claim 7, wherein: The peripheral surface of the guide head is recessed to form a groove, the groove extends along the radial direction, the groove wall of the guide groove is provided with a limiting pin, the limiting pin extends from the groove wall to the groove, and the limiting pin is used to limit the radial movement of the guide head.
9. The clamp valve with multi-channel switching according to claim 6, wherein: The rod body is provided with a resisting head, the rotating plate is provided with a slide, the resisting head and the side wall of the slide are separable, the slide is forced to rotate, and the side wall of the slide resists the resisting head, so that the rod body moves along the radial direction.