A pinch valve

Abstract

The invention discloses a pipe clamp valve, which relates to the technical field of valves. The pipe clamp valve comprises a control part, a split pipe part and a rubber hoop, the control part comprises a middle control chamber for controlling the deformation of the rubber hoop, the split pipe part comprises a docking seat and a connecting pillar, a valve body outer pipe is provided on the connecting pillar, the rubber hoop is clamped on the outside of the valve body outer pipe and the inside of the middle control chamber, a reinforcement sleeve is provided on the outside of the rubber hoop, a clamping unit for quickly clamping the rubber hoop is provided on the connecting pillar, a resonance detection unit for detecting the vibration of the rubber hoop is provided on the docking seat, and an anti-vibration unit for resisting vibration of the rubber hoop is provided on the valve body outer pipe. The pipe clamp valve makes the installation, disassembly and maintenance of the pipe clamp valve simple and quick, reduces the maintenance cost, and provides anti-vibration support for the rubber hoop through the anti-vibration unit, thereby prolonging the service life of the rubber hoop.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a pinch valve. Background Art

[0002] The pinch valve is a valve used to control the flow of fluid in a pipeline. Its working principle is relatively simple. It mainly realizes the function of switching or regulating by squeezing the sleeve. The pinch valve uses pneumatic, electric, manual or hydraulic drive to squeeze the sleeve to achieve the purpose of controlling the flow of fluid. The sleeve is the most important part of the pinch valve. It not only provides corrosion resistance, wear resistance and pressure bearing capacity, but also ensures that the medium only passes through the sleeve, and other parts of the valve body do not directly contact the medium.

[0003] The existing pinch valves are usually complex in structure and inconvenient to install and maintain. In a medium transmission system with high pressure or high flow rate, since unstable pressure is likely to occur during material transportation, the fluid velocity will produce a pressure difference on the inner wall of the casing during material transportation, thereby causing the casing to vibrate. In special circumstances, for example, when the casing material is subjected to the vibration of its resonant frequency, the casing itself bounces up and down during multiple resonances and eventually undergoes severe deformation, which can easily cause damage to the casing wall and reduce its service life, thereby increasing the maintenance frequency of the casing and increasing maintenance work. Since the existing pinch valve casing has a complex structure and is not easy to disassemble and assemble, the internal flow control casing is not easy to disassemble, replace and maintain, making the pinch valve inconvenient to maintain. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a pinch valve with a reasonable structural design and is easy to operate and maintain. The pinch valve adopts a split pipeline portion and a detachable control portion design, which makes the installation, disassembly and maintenance of the pinch valve simple and quick, reduces maintenance costs, and improves work efficiency. In conjunction with the design of a resonance detection unit and an anti-vibration unit, the resonance detection unit can monitor the vibration of the rubber hoop in real time and transmit the signal to the control system through a vibration sensor. When the vibration exceeds a set threshold, an alarm mechanism can be triggered. The anti-vibration unit can provide anti-vibration support for the rubber hoop, change the self-resonance frequency of the rubber hoop, avoid the rubber hoop from being damaged by resonance, and improve the service life of the rubber hoop.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pinch valve, comprising a control part, a split pipeline part and a rubber hoop, wherein the control part comprises a middle control chamber for controlling the deformation of the rubber hoop;

[0006] The split pipeline part includes a docking seat arranged on both sides of the central control compartment and a connecting pillar connected to the docking seat, and the connecting pillar is provided with a valve body external pipe;

[0007] The rubber hoop is clamped on the outside of the valve body outer tube and the inside of the middle control compartment, and a reinforcement sleeve is provided on the outside of the rubber hoop;

[0008] The connecting pillar is provided with a clamping unit for quickly clamping the rubber hoop;

[0009] The docking seat is provided with a resonance detection unit for detecting the vibration of the rubber hoop, and the valve body outer pipe is provided with an anti-vibration unit for resisting the vibration of the rubber hoop.

[0010] Preferably, the anti-vibration unit includes an electric push rod arranged on the outer pipe of the valve body and a push frame arranged at the output end of the electric push rod, and the push frame is provided with multiple groups of anti-vibration support rods, and the anti-vibration support rods pass through the docking seat and are movably inserted into the interior of the reinforcement sleeve.

[0011] Preferably, the resonance detection unit includes a limit bracket fixedly connected to the side of the docking seat and a detection frame movably connected to the limit bracket, a spring is fixedly connected between the detection frame and the limit bracket, the detection frame passes through the docking seat and is connected to a contact, the contact is fitted with a rubber hoop, the resonance detection unit also includes a vibration sensor arranged on the docking seat, and the detection frame is connected to the detection end on the vibration sensor.

[0012] Preferably, a limiting rail is provided inside the docking seat, and a clamping strip is provided on the side of the rubber hoop, and the clamping strip is movably clamped in the limiting rail.

[0013] Preferably, a locking hole is provided on the docking seat, and a locking mechanism is provided on the central control compartment, and the locking mechanism is used to achieve rapid docking between the central control compartment and the docking seat.

[0014] Preferably, the locking mechanism includes a first guide rail frame arranged on the central control compartment and an adjustment plate slidably connected to the first guide rail frame, a plurality of groups of locking rods are provided on the adjustment plate, a first screw rod is threadedly connected to the first guide rail frame, the first screw rod is rotatably connected to the adjustment plate, and the plurality of groups of locking rods are respectively movably inserted into respective locking holes on the docking seat.

[0015] Preferably, the clamping unit comprises a movable sleeve seat arranged on the side of the connecting pillar, the movable sleeve seat is provided with a plurality of groups of limit sliding rods slidably connected to the connecting pillar, the movable sleeve seat is fixedly connected with a clamping hoop for clamping the rubber hoop sleeve, and one end of the clamping hoop away from the movable sleeve seat passes through the movable sleeve seat and extends upward and is fixedly connected with a movable frame;

[0016] The clamping unit also includes a second guide rail frame arranged on the connecting pillar and a second screw rod rotatably connected to the second guide rail frame, the movable frame is slidably connected to the second guide rail frame, and the movable frame is threadedly connected to the second screw rod.

[0017] Preferably, a track seat is provided on the side of the middle control compartment, a pressure cylinder body is provided on the track seat, an external power source pipeline is provided on the pressure cylinder body, a piston is provided inside the pressure cylinder body, a pressure block is provided on the piston, and the pressure block is movably connected between the track seat and the inside of the middle control compartment.

[0018] Preferably, a reinforcement frame is fixedly connected to the connecting support column, and a reinforcement base is fixedly connected to the reinforcement frame.

[0019] Preferably, a reinforcement sleeve is fixedly connected between the outer pipe of the valve body and the docking seat, and the anti-vibration support rod is slidably connected in the reinforcement sleeve.

[0020] The present invention discloses a pinch valve, which has the following beneficial effects:

[0021] 1. The pinch valve has a reasonable structural design and is easy to operate and maintain. The pinch valve adopts a split pipe part and a detachable control part design, which makes the installation, disassembly and maintenance of the pinch valve simple and quick, reduces maintenance costs, and improves work efficiency. With the design of the resonance detection unit and the anti-vibration unit, the resonance detection unit can monitor the vibration of the rubber hoop in real time and transmit the signal to the control system through the vibration sensor. When the vibration exceeds the set threshold, the alarm mechanism can be triggered. The anti-vibration unit is used to provide anti-vibration support for the rubber hoop, change the self-resonance frequency of the rubber hoop, avoid the rubber hoop from being damaged by resonance, and improve the service life of the rubber hoop.

[0022] 2. The clamping unit design of the clamping valve allows the rubber hoop to be easily and quickly installed and clamped on the split pipe part. When the rubber hoop is installed on the outer pipe of the valve body, the clamping hoop is used to quickly clamp and limit the rubber hoop, ensuring a good installation effect of the rubber hoop. The installation is convenient, and the subsequent disassembly, maintenance and replacement of the rubber hoop are convenient to meet the use requirements.

[0023] 3. The clamp valve, through the design of the locking mechanism, realizes that the docking position of the control part and the split pipe part is convenient for quick docking and locking, thereby ensuring that the control part, the split pipe part and the rubber hoop are easy to disassemble and assemble, and ensuring that the entire valve body device is easy to assemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1This is a first viewing angle of the overall structural diagram of the present invention;

[0026] Figure 2 The second viewing angle of the overall structural diagram of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the split pipeline part of the present invention;

[0028] Figure 4 It is a top cross-sectional schematic diagram of the present invention;

[0029] Figure 5 This is a schematic diagram of disassembling the rubber hoop of the present invention;

[0030] Figure 6 is a cross-sectional view of a control unit of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the locking mechanism of the present invention;

[0032] Figure 8 It is a structural schematic diagram of a resonance detection unit of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the anti-vibration unit of the present invention;

[0034] Fig.10 It is a structural schematic diagram of the clamping unit of the present invention.

[0035] In the figure: 1. control unit; 11. middle control compartment; 12. track seat; 13. pressure cylinder; 131. piston; 132. pressure block; 14. external power source pipeline; 15. locking mechanism; 151. first guide rail frame; 152. adjustment plate; 153. locking rod; 154. first screw rod; 2. split pipeline unit; 21. docking seat; 211. locking hole; 212. limit rail; 22. connecting pillar; 23. valve body external pipe; 24. reinforcement frame; 3. rubber Rubber hoop sleeve; 31. Clamping strip; 32. Reinforcement sleeve; 4. Clamping unit; 41. Movable sleeve seat; 411. Limiting slide rod; 42. Clamping hoop; 43. Second guide rail frame; 44. Movable frame; 45. Second screw rod; 5. Anti-vibration unit; 51. Electric push rod; 52. Push frame; 53. Anti-vibration support rod; 54. Reinforcement sleeve; 6. Resonance detection unit; 61. Limiting bracket; 62. Detection frame; 63. Spring; 64. Contact; 65. Vibration sensor; 7. Reinforcement base. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The embodiment of the present application provides a pinch valve to solve the problem that the existing pinch valves are usually complex in structure and inconvenient to install and maintain. In a medium transmission system with high pressure or high flow rate, since pressure instability is likely to occur during material transportation, the fluid velocity will produce a pressure difference on the inner wall of the casing during material transportation, thereby causing the casing to vibrate. In special circumstances, for example, when the casing material is vibrated at its resonant frequency, the casing itself bounces up and down during multiple resonances and eventually undergoes severe deformation, which can easily cause damage to the casing wall and reduce its service life, thereby increasing the maintenance frequency of the casing and increasing maintenance work. Since the existing pinch valve casing has a complex structure and is not easy to disassemble and assemble, the internal casing for controlling the flow is not easy to disassemble, replace and maintain, resulting in the problem of inconvenient maintenance of the pinch valve.

[0038] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] The embodiment of the present invention discloses a pinch valve. Figure 1-10 As shown, it includes a control part 1, a split pipe part 2 and a rubber hoop 3, and the control part 1 includes a middle control compartment 11 for controlling the deformation of the rubber hoop 3;

[0040] A track seat 12 is provided on the side of the middle control chamber 11, a pressure cylinder body 13 is provided on the track seat 12, an external power source pipeline 14 is provided on the pressure cylinder body 13, a piston 131 is provided inside the pressure cylinder body 13, a pressure block 132 is provided on the piston 131, and the pressure block 132 is movably connected between the track seat 12 and the inside of the middle control chamber 11. The control part 1 includes the middle control chamber 11, which is the core part for controlling the deformation of the rubber hoop 3. A track seat 12 and a pressure cylinder body 13 are provided on the side of the control part 1. The pressure cylinder body 13 is powered by the external power source pipeline 14, and the piston 131 and the pressure block 132 inside it are used to directly act on the rubber hoop 3 to realize its deformation, thereby controlling the opening and closing of the valve body channel.

[0041] The split pipeline part 2 includes a docking seat 21 disposed on both sides of the central control compartment 11 and a connecting pillar 22 connected to the docking seat 21, and a valve body external pipe 23 is provided on the connecting pillar 22;

[0042] The rubber hoop 3 is clamped on the outside of the valve body outer tube 23 and the inside of the middle control chamber 11, and a reinforcement sleeve 32 is provided on the outside of the rubber hoop 3;

[0043] The connecting pillar 22 is provided with a clamping unit 4 for quickly clamping the rubber hoop 3;

[0044] The docking seat 21 is provided with a resonance detection unit 6 for detecting the vibration of the rubber hoop 3 , and the valve body outer pipe 23 is provided with an anti-vibration unit 5 for resisting the vibration of the rubber hoop 3 .

[0045] The anti-vibration unit 5 includes an electric push rod 51 arranged on the valve body outer pipe 23 and a push frame 52 arranged at the output end of the electric push rod 51. The push frame 52 is provided with multiple groups of anti-vibration support rods 53. The anti-vibration support rods 53 pass through the docking seat 21 and are movably inserted into the interior of the reinforcement sleeve 32.

[0046] The anti-vibration unit 5 provided in the device has a simple structure and is easy to operate. When the rubber hoop 3 needs to be reinforced, the push frame 52 is directly driven to move by the electric push rod 51, and the push frame 52 is used to drive the anti-vibration support rod 53 to move and insert the anti-vibration support rod 53 into the reinforcement sleeve 32, so that the rubber hoop 3 forms support limits at multiple points of the reinforcement sleeve 32, thereby changing the resonance frequency of the rubber hoop 3 and avoiding resonance.

[0047] A reinforcement sleeve 54 is fixedly connected between the valve body outer pipe 23 and the docking seat 21, and the anti-vibration support rod 53 is slidably connected in the reinforcement sleeve 54. The device provides reinforcement support for the anti-vibration support rod 53 through the reinforcement sleeve 54 to ensure the stability of the force on the anti-vibration support rod 53.

[0048] The resonance detection unit 6 includes a limit bracket 61 fixedly connected to the side of the docking seat 21 and a detection bracket 62 movably connected to the limit bracket 61, a spring 63 is fixedly connected between the detection bracket 62 and the limit bracket 61, the detection bracket 62 passes through the docking seat 21 and is connected to a contact 64, the contact 64 is in contact with the rubber hoop 3, the resonance detection unit 6 also includes a vibration sensor 65 arranged on the docking seat 21, and the detection bracket 62 is connected to the detection end on the vibration sensor 65;

[0049] The resonance detection unit 6 in the device is composed of a limit bracket 61, a detection frame 62, a spring 63, a contact 64 and a vibration sensor 65. Under the elastic force of the spring 63, the detection frame 62 and the contact 64 are subjected to the elastic force and always keep in contact with the rubber hoop 3. When the rubber hoop 3 vibrates, the rubber hoop 3 drives the contact 64 and the detection frame 62 to vibrate. The vibration of the detection frame 62 is detected by the vibration sensor 65. After the vibration signal is detected, the information is transmitted to the computer, thereby monitoring the state of the rubber hoop 3. When the rubber hoop 3 is in a resonant state, the anti-vibration unit 5 is driven in time to work to avoid the resonance of the rubber hoop 3.

[0050] A limit rail 212 is provided inside the docking seat 21, and a clamping strip 31 is provided on the side of the rubber hoop 3. The clamping strip 31 is movably clamped in the limit rail 212. The design of the limit rail 212 and the clamping strip 31 makes it easy to install and position the rubber hoop 3, and the force is stable after installation and positioning.

[0051] A locking hole 211 is provided on the docking seat 21, and a locking mechanism 15 is provided on the central control compartment 11. The locking mechanism 15 is used to realize the rapid docking of the central control compartment 11 and the docking seat 21. The locking mechanism 15 includes a first guide rail frame 151 arranged on the central control compartment 11 and an adjustment plate 152 slidably connected to the first guide rail frame 151. A plurality of locking rods 153 are provided on the adjustment plate 152. A first screw rod 154 is threadedly connected to the first guide rail frame 151. The first screw rod 154 is rotatably connected to the adjustment plate 152. The plurality of locking rods 153 are respectively movably inserted into the locking holes 211 on the docking seat 21.

[0052] The locking mechanism 15 has a compact structure and is easy to operate, so that the control part 1 and the split pipeline part 2 can be quickly docked and locked. When the control part 1 and the split pipeline part 2 are docked, the docking seat 21 is directly engaged with the middle control compartment 11. After the engagement, the first screw rod 154 is rotated so that the first screw rod 154 pushes the adjustment plate 152 to move, and the adjustment plate 152 drives the locking rod 153 to move, and finally the locking rod 153 is inserted into the locking hole 211, thereby realizing the connection and locking of the control part 1 and the split pipeline part 2.

[0053] The clamping unit 4 includes a movable sleeve seat 41 arranged on the side of the connecting pillar 22, and the movable sleeve seat 41 is provided with a plurality of limit slide rods 411 slidably connected to the connecting pillar 22. A clamping hoop 42 for clamping the rubber hoop 3 is fixedly connected to the movable sleeve seat 41. One end of the clamping hoop 42 away from the movable sleeve seat 41 passes through the movable sleeve seat 41 and extends upward and is fixedly connected to a movable frame 44. The clamping unit 4 also includes a second guide rail frame 43 arranged on the connecting pillar 22 and a second screw rod 45 rotatably connected to the second guide rail frame 43. The movable frame 44 is slidably connected to the second guide rail frame 43, and the movable frame 44 is threadedly connected to the second screw rod 45.

[0054] The clamping unit 4 has a simple structure, which is convenient for quickly clamping and locking the rubber hoop 3 and the split pipe part 2, thereby making the installation of the rubber hoop 3 easy. When installing the rubber hoop 3, the rubber hoop 3 is inserted between the docking seat 21 and the valve body outer pipe 23, and the rubber hoop 3 is located between the valve body outer pipe 23 and the clamping hoop 42. At this time, the second screw rod 45 is rotated to make the second screw rod 45 push the movable frame 44 to move, and the movable frame 44 drives the clamping hoop 42 to move. The clamping hoop 42 slides along the inside of the movable sleeve seat 41 and tightens the outer surface of the rubber hoop 3, and finally the rubber hoop 3 is clamped and sealed, so as to achieve rapid installation of the rubber hoop 3, ensure stable installation, and facilitate subsequent disassembly and maintenance of the rubber hoop 3.

[0055] A reinforcement frame 24 is fixedly connected to the connecting pillar 22, and a reinforcement base 7 is fixedly connected to the reinforcement frame 24. The device is designed to reinforce the base 7 through the reinforcement frame 24, so that after the overall installation of the device is completed, it is easy to fix it in the target position to keep the valve body device stable under force.

[0056] The overall structure of the pinch valve consists of a control part 1, a split pipe part 2 and a rubber hoop 3. The control part 1 is used to control the deformation of the rubber hoop 3, the split pipe part 2 is used to connect the pipe, and the rubber hoop 3 is a key component to realize the opening and closing of the valve body.

[0057] The split pipeline part 2 includes a docking seat 21, a connecting pillar 22 and a valve body external pipe 23. The docking seat 21 is used for clamping with the control part 1, the connecting pillar 22 is provided with a valve body external pipe 23 and is used to connect the external pipeline, and the valve body external pipe 23 is provided with a flange; a limit rail 212 is provided inside the docking seat 21, and the limit rail 212 is used to fix the clamping strip 31 of the rubber hoop 3.

[0058] The device is provided with a locking hole 211 and a locking mechanism 15 . The locking mechanism 15 comprises a first guide rail frame 151 , an adjustment plate 152 , a locking rod 153 and a first screw rod 154 , and is used for quickly docking the control part 1 and the docking seat 21 .

[0059] The rubber hoop 3 is clamped on the outside of the valve body outer tube 23 and inside the middle control chamber 11 , and a reinforcement sleeve 32 is provided on the outside to cooperate with the anti-vibration unit 5 to achieve anti-vibration reinforcement.

[0060] The clamping unit 4 is installed on the side of the connecting pillar 22, and the clamping unit 4 includes a movable sleeve seat 41, a limit slide rod 411, a clamping hoop 42, a movable frame 44, a second guide rail frame 43 and a second screw rod 45. By rotating the second screw rod 45, the movable frame 44 can be driven to drive the clamping hoop 42 to quickly clamp the rubber hoop 3, so that the installation of the rubber hoop 3 is convenient.

[0061] The anti-vibration unit 5 includes an electric push rod 51, a push frame 52 and an anti-vibration support rod 53. The electric push rod 51 drives the push frame 52 and the anti-vibration support rod 53 to support the rubber hoop 3. The anti-vibration support rod 53 passes through the docking seat 21 and is inserted into the reinforcement sleeve 32 to prevent the rubber hoop 3 from being damaged by resonance and enhance stability.

[0062] The anti-vibration unit 5 further includes a reinforcement sleeve 54 , and the anti-vibration support rod 53 is slidably connected in the reinforcement sleeve 54 and is laterally supported, thereby further improving the anti-vibration effect of the rubber hoop 3 .

[0063] The resonance detection unit 6 includes a limit bracket 61, a detection bracket 62, a spring 63, a contact 64 and a vibration sensor 65. The detection bracket 62 is connected to the limit bracket 61 through the spring 63, and the contact 64 is in contact with the rubber hoop 3. When the rubber hoop 3 vibrates, the detection bracket 62 drives the detection end of the vibration sensor 65 to perform vibration detection. When the vibration detection value exceeds the normal value, the anti-vibration unit 5 can be automatically started to provide anti-vibration reinforcement for the rubber hoop 3, thereby improving the service life of the rubber hoop 3.

[0064] Finally, the present application provides another reinforcement measure: by fixing a reinforcement frame 24 on the connecting pillar 22 and connecting a reinforcement base 7 on the reinforcement frame 24 , the stability and strength of the overall structure of the pinch valve are further improved.

[0065] In summary, the pinch valve of the present invention realizes effective control, rapid clamping, vibration resistance and resonance detection of the rubber hoop 3 through sophisticated structural design and multifunctional unit combination, and has the advantages of compact structure, comprehensive functions, easy operation and high stability.

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0067] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pinch valve, comprising a control portion (1), a split pipe portion (2) and a rubber hoop (3), characterized in that: The control part (1) comprises a middle control compartment (11) for controlling the deformation of the rubber hoop (3); The split pipeline part (2) comprises a docking seat (21) arranged on both sides of the central control compartment (11) and connected to the docking seat (21), and a connecting pillar (22) connected to the docking seat (21), and a valve body outer pipe (23) is provided on the connecting pillar (22); The rubber hoop (3) is clamped on the outside of the valve body outer pipe (23) and the inside of the middle control chamber (11), and a reinforcement sleeve (32) is provided on the outside of the rubber hoop (3); The connecting pillar (22) is provided with a clamping unit (4) for quickly clamping the rubber hoop (3); The docking seat (21) is provided with a resonance detection unit (6) for detecting the vibration of the rubber hoop (3), and the valve body outer pipe (23) is provided with an anti-vibration unit (5) for resisting vibration of the rubber hoop (3); The anti-vibration unit (5) comprises an electric push rod (51) arranged on the valve body outer pipe (23) and a push frame (52) arranged at the output end of the electric push rod (51), the push frame (52) being provided with a plurality of groups of anti-vibration support rods (53), the anti-vibration support rods (53) passing through the docking seat (21) and being movably plugged into the interior of the reinforcement sleeve (32); The resonance detection unit (6) comprises a limit bracket (61) fixedly connected to a side of the docking seat (21) and a detection frame (62) movably connected to the limit bracket (61); a spring (63) is fixedly connected between the detection frame (62) and the limit bracket (61); the detection frame (62) passes through the docking seat (21) and is connected to a contact (64); the contact (64) is in contact with the rubber hoop (3); the resonance detection unit (6) further comprises a vibration sensor (65) arranged on the docking seat (21); the detection frame (62) is connected to a detection end on the vibration sensor (65); A limit rail (212) is provided inside the docking seat (21), and a clamping strip (31) is provided on the side of the rubber hoop sleeve (3), and the clamping strip (31) is movably clamped in the limit rail (212); The docking seat (21) is provided with a locking hole (211), and the middle control compartment (11) is provided with a locking mechanism (15), wherein the locking mechanism (15) is used to achieve rapid docking between the middle control compartment (11) and the docking seat (21); The locking mechanism (15) comprises a first guide rail frame (151) arranged on the middle control compartment (11) and an adjustment plate (152) slidably connected to the first guide rail frame (151); a plurality of locking rods (153) are arranged on the adjustment plate (152); a first screw rod (154) is threadedly connected to the first guide rail frame (151); the first screw rod (154) is rotatably connected to the adjustment plate (152); and the plurality of locking rods (153) are respectively movably inserted into respective locking holes (211) on the docking seat (21); The clamping unit (4) is characterized in that the clamping unit (4) comprises a movable sleeve (41) arranged on the side of the connecting pillar (22), the movable sleeve (41) is provided with a plurality of groups of limit sliding rods (411) slidably connected to the connecting pillar (22), the movable sleeve (41) is fixedly connected to a clamping hoop (42) for clamping the rubber hoop (3), and one end of the clamping hoop (42) away from the movable sleeve (41) passes through the movable sleeve (41) and extends upward and is fixedly connected to a movable frame (44); The clamping unit (4) further comprises a second guide rail frame (43) arranged on the connecting pillar (22) and a second screw rod (45) rotatably connected to the second guide rail frame (43); the movable frame (44) is slidably connected to the second guide rail frame (43); the movable frame (44) is threadedly connected to the second screw rod (45); A reinforcement sleeve (54) is fixedly connected between the valve body outer pipe (23) and the docking seat (21), and the anti-vibration support rod (53) is slidably connected in the reinforcement sleeve (54).

2. A pinch valve according to claim 1, characterized in that: A track seat (12) is provided on the side of the middle control chamber (11), a pressure cylinder body (13) is provided on the track seat (12), an external power source pipeline (14) is provided on the pressure cylinder body (13), a piston (131) is provided inside the pressure cylinder body (13), a pressure block (132) is provided on the piston (131), and the pressure block (132) is movably connected to the track seat (12) and the inside of the middle control chamber (11).

3. A pinch valve according to claim 1, characterized in that: A reinforcement frame (24) is fixedly connected to the connection support (22), and a reinforcement base (7) is fixedly connected to the reinforcement frame (24).

Images