Liquid level identification automatic pinch valve system

Abstract

The invention relates to the field of cell culture, in particular to an automatic pinch valve system with a liquid level recognition function. The liquid level identification automatic pinch valve system comprises a valve body and a valve head arranged at the top of the valve body, a first hose groove with the grooving direction located at the top is formed in the valve head in a penetrating mode, and the first hose groove is used for containing a hose; a pinch valve transversely perpendicular to the first hose groove is further arranged in the valve head; a liquid level identification mechanism is arranged in the valve body; the liquid level identification mechanism comprises a liquid level identification control board and a liquid level detection component which is arranged on the liquid level identification control board and connected through a circuit, the liquid level detection component comprises a signal transmitting end and a signal sensing end, and the signal transmitting end and the signal sensing end are oppositely arranged on the two sides of the first hose groove; and an executing mechanism is arranged in the valve body and is connected with the liquid level identification control panel and the pinch valve through a circuit. The liquid level recognition automatic pinch valve system can automatically recognize the hose and the liquid level state of the hose, the liquid state of the pinch valve section can be monitored in real time, and full-automatic production of equipment is achieved.

Description

Technical Field

[0001] The present application relates to the field of cell culture, and in particular to a liquid level recognition automatic pinch valve system. Background Art

[0002] Cell culture refers to a method of simulating the in vivo environment (sterility, suitable temperature, pH and certain nutritional conditions, etc.) in vitro to enable it to survive, grow, reproduce and maintain its main structure and function. Cell culture technology is an important and commonly used technology in cell biology research methods. Through cell culture, a large number of cells can be obtained, and cell signal transduction, cell anabolism, cell growth and proliferation, etc. can be studied. In the process of cell culture, it is necessary to complete processes such as fluid replenishment, fluid drainage, replacement, and disinfection; these processes are required to be carried out in a closed and sterile environment, and the hose is shut off or the hose is loosened by squeezing the clamp valve to make the pipeline unobstructed, and cooperate with other actuators to complete functions such as fluid replenishment, fluid drainage, replacement, and disinfection to avoid contamination of the controlled liquid.

[0003] The existing pinch valves on the market usually do not have a liquid level detection function and cannot identify the liquid passing through the section of the pipe clamped by the pinch valve. In order to realize pipeline monitoring in the existing technology, it is usually necessary to install a dedicated liquid level sensor to understand whether there is liquid at a certain point in the pipeline. The dedicated liquid level sensor needs to occupy a specific installation position in the equipment space, and the corresponding logic circuit needs to be designed on the control board for feedback and control. On cell culture-related equipment, especially when a closed cavity is required for culture, the space structure is compact, and the dedicated liquid level sensor will take up more space, and it is necessary to extend part of the pipeline, which increases the manufacturing difficulty and risk and increases the cost. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a liquid level recognition automatic pinch valve system. It is used to solve the problem in the prior art that the pinch valve cannot recognize whether a hose is loaded and the liquid level status in the hose after loading. The liquid level recognition automatic pinch valve system described in the present application can automatically recognize the hose and its liquid level status, can monitor the liquid status of the pinch valve section in real time, and realize fully automatic production of the equipment.

[0005] The first aspect of the present invention discloses a liquid level recognition automatic tube clamping valve system. The liquid level recognition automatic tube clamping valve system comprises a valve body and a valve head arranged at the top of the valve body, wherein the valve head is provided with a first hose groove with a slotted direction located at the top, and the first hose groove is used to place a hose; the valve head is also provided with a tube clamping valve transversely perpendicular to the first hose groove; the valve body is provided with a liquid level recognition mechanism; the liquid level recognition mechanism comprises a liquid level recognition control board and a liquid level detection component arranged on the liquid level recognition control board and connected through a circuit, the liquid level detection component comprises a signal transmitting end and a signal sensing end, and the signal transmitting end and the signal sensing end are arranged on both sides of the first hose groove relatively; the valve body is provided with an actuator, and the actuator is connected to the liquid level recognition control board and the tube clamping valve through a circuit.

[0006] Preferably, the valve head is also provided with a clamping valve slide groove which is transversely perpendicular to the first hose groove, and the clamping valve can be slidably arranged in the clamping valve slide groove; the clamping valve slide groove includes a first slide groove section and a second slide groove section located on both sides of the first hose groove, and a first supporting member is provided in the first slide groove section.

[0007] Preferably, the clamp valve comprises a front valve body, a second hose groove which is transversely perpendicular to the clamp valve and has a groove direction located at the top, and a rear valve body in sequence; the front valve body also comprises a first abutment groove connected to the second hose groove, and the rear valve body also comprises a second abutment protruding toward the second hose groove.

[0008] More preferably, the first abutting member and the second abutting member are both in the shape of a cylinder; and / or, the first abutting member and the second abutting member are of the same size.

[0009] Preferably, a pinch valve driving member is further provided in the valve body, and the pinch valve driving member drives the pinch valve to move along the pinch valve sliding groove.

[0010] More preferably, the pinch valve driver is selected from any one of a stepper motor, a DC reduction motor or a servo motor.

[0011] Preferably, the first hose groove includes, from top to bottom, an upper portion of the first hose groove, a middle portion of the first hose groove and a lower portion of the first hose groove; the cross-sectional width of the middle portion of the first hose groove is smaller than the cross-sectional width of the hose, and the cross-sectional width of the lower portion of the first hose groove matches the cross-sectional width of the hose, and the signal transmitting end and the signal sensing end are arranged on both sides of the lower portion of the first hose groove.

[0012] More preferably, the signal transmitting end and the signal sensing end are arranged at a middle position of the lower part of the first hose groove.

[0013] Preferably, the pinch valve is selected from any one of an electromagnetic pinch valve, an electric pinch valve or a pneumatic pinch valve.

[0014] Preferably, the liquid level detection component is selected from any one of a photoelectric detection component or a capacitive detection component.

[0015] Preferably, the actuator is connected to the liquid level identification control board and the pinch valve driver via a board card or a wiring harness.

[0016] Preferably, an indicator light is also provided on the valve head.

[0017] The second aspect of the present invention discloses a method for using the liquid level recognition automatic pinch valve system as described above, the method comprising the following steps:

[0018] 1) The first hose slot is unloaded, no hose is placed, the signal transmitting end and the signal sensing end are directly facing each other, the optical signal is stable, and the unloaded current signal is measured;

[0019] 2) placing a hose without liquid in the first hose groove, with a hose between the signal transmitting end and the signal sensing end, the optical signal fluctuates, the current signal changes, and the electrical signal generated in the liquid level detection component is captured by the liquid level recognition control board, which processes the signal and forwards it to the actuator;

[0020] 3) Liquid flows in the hose, and there is liquid and hose between the signal transmitting end and the signal sensing end. The optical signal fluctuates again, the current signal changes again, and the electrical signal generated in the liquid level detection component is captured by the liquid level recognition control board, which processes the signal and forwards it to the actuator;

[0021] 4) The actuator sends a command to the pinch valve to shut off or release the hose.

[0022] The present invention provides a liquid level recognition automatic pinch valve system, which has the following beneficial effects:

[0023] 1) The liquid level identification mechanism in the present invention can automatically identify the loading status of the first hose groove, effectively avoiding the misoperation of the pinch valve in the no-load state, thereby improving production efficiency while ensuring production safety.

[0024] 2) The liquid level recognition mechanism in the present invention can automatically recognize the liquid level status in the hose after the hose is placed, and upload the signal to the actuator through the liquid level recognition control panel, so as to monitor the liquid status of the clamping valve section in real time and realize the fully automatic production of the equipment, especially in the production related to fully automated cell culture, to reduce human intervention and improve production efficiency.

[0025] 3) The first hose groove in the present invention is opened upward, which avoids the problem of small side space and poor operation when disassembling and assembling the hose, and makes it easier to disassemble and assemble the hose.

[0026] 4) The indicator light in the present invention can be displayed according to the current state of the self-identification valve, so that the operator can monitor the current working state of the self-identification valve more easily.

[0027] 5) The actuator in the present invention can make the pinch valve and the identification mechanism work in a better coordinated manner, making the liquid level identification automatic pinch valve more systematic and convenient for operators to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Shown is a schematic diagram of the overall structure of the liquid level recognition automatic pinch valve system described in the present application.

[0029] Figure 2 Shown is the overall structural diagram of the liquid level recognition automatic pinch valve system described in the present application in the released state.

[0030] Figure 3 Shown is a schematic structural diagram of the pinch valve of the liquid level recognition automatic pinch valve system described in the present application.

[0031] Figure 4 Shown is a partial structural schematic diagram of the liquid level recognition automatic pinch valve system described in the present application when in the off state.

[0032] Figure 5 Shown is a partial structural schematic diagram of the liquid level detection components of the liquid level recognition automatic pinch valve system described in the present application.

[0033] Figure 6 The figure shows a partial cross-sectional view of the liquid level recognition automatic pinch valve system described in the present application when no pinch valve is installed.

[0034] Description of Figure Numbers

[0035] 10 valve body, 20 valve head, 21 first hose groove, 211 first hose groove upper part, 212 first hose groove middle part, 213 first hose groove lower part, 22 indicator light, 30 pinch valve, 31 front valve body, 32 second hose groove, 321 first abutment groove, 33 rear valve body, 331 second abutment, 40 liquid level identification mechanism, 41 liquid level detection component, 411 signal transmitting end, 412 signal sensing end, 42 liquid level identification control board, 50 actuator, 60 pinch valve slide, 61 first slide section, 611 first abutment, 62 second slide section. DETAILED DESCRIPTION

[0036] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0037] It should be noted that the process equipment or devices not specifically specified in the following embodiments are all conventional equipment or devices in the art.

[0038] In addition, it should be understood that one or more method steps mentioned in the present invention do not exclude the existence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise specified; it should also be understood that the combination connection relationship between one or more devices / apparatuses mentioned in the present invention does not exclude the existence of other devices / apparatuses before or after the combination device / apparatus or the insertion of other devices / apparatuses between these explicitly mentioned two devices / apparatuses, unless otherwise specified. Moreover, unless otherwise specified, the numbering of each method step is only a convenient tool for identifying each method step, and is not intended to limit the order of arrangement of each method step or the scope of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the present invention without substantially changing the technical content.

[0039] In order to solve the problem in the prior art that the pinch valve cannot identify whether a hose is loaded and the liquid level status in the hose after loading, the applicant of the present invention provides a liquid level recognition automatic pinch valve system. The liquid level recognition automatic pinch valve system can automatically identify the hose and its liquid level status, can monitor the liquid status of the pinch valve section in real time, and realize full-automatic production of the equipment.

[0040] In a specific embodiment, Figures 1 to 6As shown, the liquid level recognition automatic pinch valve system includes a valve body 10 and a valve head 20 arranged at the top of the valve body 10, the valve head 20 is provided with a first hose groove 21 with a groove direction located at the top, and the first hose groove 21 is used to place a hose; the valve head 20 is also provided with a pinch valve 30 which is transversely perpendicular to the first hose groove 21; the valve body 10 is provided with a liquid level recognition mechanism 40; the liquid level recognition mechanism 40 includes a liquid level recognition control board 42 and a liquid level detection component 41 arranged on the liquid level recognition control board 42 and connected through a circuit, the liquid level detection component 41 includes a signal transmitting end 411 and a signal sensing end 412, and the signal transmitting end 411 and the signal sensing end 412 are relatively arranged on both sides of the first hose groove 21; the valve body 10 is provided with an actuator 50, and the actuator 50 is connected to the liquid level recognition control board 42 and the pinch valve 30 through a circuit. The pinch valve 30 is used to squeeze the hose transversely and close a portion of the passage of the first hose groove 21 to achieve the effect of shutting off the hose.

[0041] In a specific Figures 1 to 6 In the embodiment shown, the valve body 10 and the valve head 20 are not completely isolated, and there are some communication channels between the two for wiring. In a preferred embodiment, the valve body 10 and the valve head 20 are integrally formed.

[0042] In a more specific embodiment, Figures 1 to 6 As shown, the liquid level detection component 41 is selected from any one of a photoelectric detection component or a capacitive detection component. In a preferred embodiment, as Figures 1 to 6 As shown, the liquid level detection component 41 is a photoelectric detection component.

[0043] In a more specific embodiment, Figures 1 to 6 As shown, the liquid level identification mechanism 40 is fixedly or detachably connected to the valve head 20. For example, the liquid level identification mechanism 40 is welded, bonded, threaded or clamped to the valve head 20.

[0044] In a more specific embodiment, Figures 1 to 6 As shown, the actuator 50 is connected to the liquid level recognition control board 42 and the pinch valve driver through a board or a harness. In addition, the actuator 50 can be externally connected to a host computer to display the status of the pinch valve 30 and the recognition mechanism 40 in the host computer, so as to facilitate monitoring of the working status of the liquid level recognition automatic pinch valve, making the liquid level recognition automatic pinch valve more systematic and convenient for operators to operate.

[0045] In a specific embodiment, Figures 1 to 6As shown, the valve head 20 may also be provided with an indicator light 22, and the indicator light 22 is connected to the host computer through a circuit. In a more specific embodiment, the indicator light 22 has the following states: 1) when the first hose groove 21 is unloaded, the indicator light 22 is off; 2) when the first hose groove 21 is loaded with a hose, the indicator light 22 displays one color; 3) when the clamp valve 30 shuts off the hose, the indicator light 22 displays another color; 4) when liquid is detected in the hose, the indicator light 22 displays another color other than the above three colors. The indicator light 22 enables the operator to monitor the current working status of the self-identification valve more easily.

[0046] In a specific embodiment, Figures 1 to 6 As shown, the valve head 20 is further provided with a pinch valve slide groove 60 which is transversely perpendicular to the first hose groove 21. The pinch valve 30 can slide along the pinch valve slide groove 60. The first hose groove 21 and the pinch valve slide groove 60 form a cross-shaped through groove. The pinch valve slide groove 60 includes a first slide groove section 61 and a second slide groove section 62 located on both sides of the first hose groove 21. One end of the first slide groove section 61 is connected to the external space to ensure that the pinch valve 30 can be partially suspended in the external space when moving outward along the pinch valve slide groove 60, so that the pinch valve 30 has enough movement space to shut off the hose.

[0047] In a specific embodiment, Figures 1 to 6 As shown, a first abutting member 611 is provided in the first slide groove section 61 , and the first abutting member 611 does not move with any structure. Preferably, the first abutting member 611 is cylindrical.

[0048] In a specific embodiment, Figures 1 to 6 As shown, the pinch valve 30 includes a front valve body 31, a second hose groove 32 which is transversely perpendicular to the pinch valve 30 and has a groove direction at the top, and a rear valve body 33. In a preferred embodiment, as shown in FIG. Figure 3 As shown, the pinch valve 30 is integrally formed.

[0049] In a more specific embodiment, Figures 1 to 6 As shown, the front valve body 31 further includes a first abutment groove 321 communicating with the second hose groove 32, and the rear valve body 33 further includes a second abutment 331 protruding toward the second hose groove 32. In a preferred embodiment, as Figures 1 to 6As shown, the second abutment 331 is cylindrical. Specifically, the first abutment groove 321 is an L-shaped groove, including a longitudinal groove and a transverse groove that are interconnected. The longitudinal groove is formed by the front valve body 31 being recessed into the interior of the front valve body 31, and the transverse groove is formed by the second hose groove 32 being recessed into the interior of the second hose groove 32. The shape of the longitudinal groove should match the first abutment 611 to ensure that the longitudinal groove can abut the first abutment 611 when the pinch valve 30 moves inward, so as to prevent the pinch valve 30 from over-extending. The cross-sectional shape of the transverse groove should be the extension of the cross-sectional shape of the first abutment 611 on a straight line, and the extension length of the transverse groove should be sufficient to ensure that the pinch valve 30 can achieve the abutment between the second abutment 331 and the first abutment 611 within the moving distance, thereby shutting off the hose.

[0050] In a Figures 1 to 6 In the more specific embodiment shown, when the hose is turned off, the pinch valve 30 slides outward along the pinch valve slide groove 60, and the second abutting member 331 gradually approaches the first abutting member 611 and squeezes the hose until the second abutting member 331 approaches or directly abuts the first abutting member 611, at which time the first hose groove 21 and the second hose groove 32 are separated from each other. When the hose is released, the pinch valve 30 slides inward along the pinch valve slide groove 60, and the second abutting member 331 gradually moves away from the first abutting member 611 and releases the hose until the first abutting member groove 321 abuts the first abutting member 331, at which time the first hose groove 21 and the second hose groove 32 should overlap with each other and be used as the same channel.

[0051] In a specific embodiment, Figures 1 to 6 As shown, the first hose groove 21 includes, from top to bottom, a first hose groove upper portion 211, a first hose groove middle portion 212, and a first hose groove lower portion 213. The cross-sectional width of the first hose groove middle portion 212 is smaller than the cross-sectional width of the hose, and the cross-sectional width of the first hose groove lower portion 213 matches the cross-sectional width of the hose. The signal transmitting end 411 and the signal sensing end 412 are disposed on both sides of the first hose groove lower portion 213.

[0052] In a Figures 1 to 6 In the specific embodiment shown, the connection line between the signal transmitting end 411 and the signal sensing end 412 passes through the axis of the lower portion 213 of the first hose groove.

[0053] In a more specific embodiment, Figures 1 to 6As shown, when the hose is placed in the lower portion 213 of the first hose groove, since the cross-sectional width of the middle portion 212 of the first hose groove is smaller than the cross-sectional width of the hose, it is difficult for the hose to slip out upward without external force intervention. Therefore, the hose is relatively fixed in the position of the lower portion 213 of the first hose groove, thereby improving the stability and safety of the device during use.

[0054] In a specific embodiment, Figures 1 to 6 As shown, the valve body 10 is further provided with a pinch valve driver, which drives the pinch valve 30 to move along the pinch valve slide 60. In a preferred embodiment, the pinch valve driver is selected from any one of a stepper motor, a DC reduction motor or a servo motor. Further, the pinch valve driver is a servo motor.

[0055] In a specific embodiment, Figures 1 to 6 As shown, the pinch valve 3 is selected from any one of an electromagnetic pinch valve, an electric pinch valve or a pneumatic pinch valve. Preferably, the pinch valve 3 is an electromagnetic pinch valve.

[0056] The present invention also provides a method for using the liquid level recognition automatic pinch valve system, wherein the liquid level detection component 41 is a photoelectric detection component, and the method for using the liquid level recognition automatic pinch valve system comprises the following steps:

[0057] 1) The first hose slot 21 is unloaded, and no hose is placed. The signal transmitting end 411 and the signal sensing end 412 are directly facing each other, and the optical signal is stable. The unloaded current signal is measured, processed, and forwarded to the actuator;

[0058] 2) A hose without liquid is placed in the first hose groove 21, and a hose is present between the signal transmitting end 411 and the signal sensing end 412. The optical signal fluctuates, the current signal changes, and the electrical signal generated in the liquid level detection component 41 is captured by the liquid level recognition control board 42. The liquid level recognition control board 42 processes the signal and forwards it to the actuator 50;

[0059] 3) Liquid flows in the hose, and there is liquid and hose between the signal transmitting end 411 and the signal sensing end 412. The optical signal fluctuates again, and the current signal changes again. The electrical signal generated in the liquid level detection component 41 is captured by the liquid level recognition control board 42, and the liquid level recognition control board 42 processes the signal and forwards it to the actuator 50;

[0060] 4) The actuator 50 sends a command to the pinch valve 30 to shut off or release the hose.

[0061] Furthermore, when shutting down, Figure 4As shown, the pinch valve 30 moves along the pinch valve slide groove 60 toward the outside of the valve head 20. During the movement, the second abutting member 331 continuously squeezes the hose until the second abutting member 331 abuts against or nearly abuts against the first abutting member 611. At this time, the hose is clamped between the first abutting member 611 and the second abutting member 331, so that the liquid cannot flow. Figures 1 to 6 As shown, when released, the pinch valve 30 moves along the pinch valve slide groove 60 toward the inside of the valve head 20, and during the movement, the second abutment 331 gradually moves away from the first abutment 331 until the first abutment groove 321 abuts or is close to abutting the first abutment 611. At this time, the second hose groove 32 and the first hose groove 21 overlap with each other and form a hose channel, so that the hose is released and the liquid in the hose can flow smoothly through the hose.

[0062] The liquid level recognition automatic clamp valve system of the present invention can automatically recognize the loading status of the first hose groove 21, effectively avoiding the misoperation of the clamp valve in the no-load state, and improving the production efficiency while ensuring the production safety; it can automatically recognize the liquid level status in the hose after the hose is placed, and upload the signal to the actuator through the liquid level recognition control panel, so as to monitor the liquid status of the clamp valve section in real time and realize the full automatic production of the equipment; it avoids the problem of small side space and difficult operation when disassembling and assembling the hose, and is more convenient for disassembling and assembling the hose.

[0063] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A liquid level recognition automatic pinch valve system, characterized in that: The invention comprises a valve body (10) and a valve head (20) arranged at the top of the valve body (10); a first hose groove (21) is formed in the valve head (20) and is located at the top of the valve body; the first hose groove (21) is used to place a hose; and a pinch valve (30) is also formed in the valve head (20) and is transversely perpendicular to the first hose groove (21). A liquid level identification mechanism (40) is provided in the valve body (10); the liquid level identification mechanism (40) comprises a liquid level identification control board (42) and a liquid level detection component (41) provided on the liquid level identification control board (42) and connected via a circuit; the liquid level detection component (41) comprises a signal transmitting end (411) and a signal sensing end (412); the signal transmitting end (411) and the signal sensing end (412) are provided on opposite sides of the first hose groove (21); An actuator (50) is provided in the valve body (10), and the actuator (50) is connected to the liquid level identification control board (42) and the pinch valve (30) through a circuit.

2. The liquid level recognition automatic pinch valve system according to claim 1, characterized in that: The valve head (20) is further provided with a pinch valve slide groove (60) which is transversely perpendicular to the first hose groove (21), and the pinch valve (30) can be slidably arranged in the pinch valve slide groove (60); the pinch valve slide groove (60) comprises a first slide groove section (61) and a second slide groove section (62) which are located on both sides of the first hose groove (21), and a first abutting member (611) is arranged in the first slide groove section (61); and / or the pinch valve (30) comprises a front valve body (31), a second hose groove (32) which is transversely perpendicular to the pinch valve (30) and has a groove direction located at the top, and a rear valve body (33) in sequence; the front valve body (31) further comprises a first abutting member groove (321) which is communicated with the second hose groove (32), and the rear valve body (33) further comprises a second abutting member (331) which protrudes in the direction of the second hose groove (32).

3. The liquid level recognition automatic pinch valve system according to claim 2, characterized in that: The first supporting member (611) and the second supporting member (331) are both in the shape of cylinders; and / or the first supporting member (611) and the second supporting member (331) are in the same size.

4. The liquid level recognition automatic pinch valve system according to claim 1, characterized in that: The valve body (10) is also provided with a pinch valve driving component, and the pinch valve driving component drives the pinch valve (30) to move along the pinch valve sliding groove (60).

5. The liquid level recognition automatic pinch valve system according to claim 4, characterized in that: The clamp valve driving element is selected from any one of a stepping motor, a DC reduction motor or a servo motor.

6. The liquid level recognition automatic pinch valve system according to claim 1, characterized in that: The first hose groove (21) comprises, from top to bottom, a first hose groove upper portion (211), a first hose groove middle portion (212) and a first hose groove lower portion (213); the cross-sectional width of the first hose groove middle portion (212) is smaller than the cross-sectional width of the hose, the cross-sectional width of the first hose groove lower portion (213) matches the cross-sectional width of the hose, and the signal transmitting end (411) and the signal sensing end (412) are arranged on both sides of the first hose groove lower portion (213).

7. The liquid level recognition automatic pinch valve system according to claim 1, characterized in that: The pinch valve (30) is selected from any one of an electromagnetic pinch valve, an electric pinch valve or a pneumatic pinch valve; And / or, the liquid level detection component (41) is selected from any one of a photoelectric detection component and a capacitive detection component.

8. The liquid level recognition automatic pinch valve system according to claim 1, characterized in that: The actuator (50) is connected to the liquid level identification control board (42) and the pinch valve driving component via a board card or a wiring harness.

9. The liquid level recognition automatic pinch valve system according to claim 1, characterized in that: The valve head (20) is also provided with an indicator light (22).

10. A method for using the liquid level recognition automatic pinch valve system according to any one of claims 1 to 9, characterized in that: The liquid level detection component (41) is a photoelectric detection component, and the use method comprises the following steps: 1) The first hose slot (21) is unloaded, no hose is placed, the signal transmitting end (411) and the signal sensing end (412) are directly facing each other, the optical signal is stable, and the unloaded current signal is measured; 2) placing a hose without liquid in the first hose groove (21), with the hose between the signal transmitting end (411) and the signal sensing end (412), the optical signal fluctuates, the current signal changes, the electrical signal generated in the liquid level detection component (41) is captured by the liquid level recognition control board (42), and the liquid level recognition control board (42) processes the signal and forwards it to the actuator (50); 3) Liquid flows in the hose, and there is liquid and hose between the signal transmitting end (411) and the signal sensing end (412), the optical signal fluctuates again, the current signal changes again, and the electrical signal generated in the liquid level detection component (41) is captured by the liquid level recognition control board (42), and the liquid level recognition control board (42) processes the signal and forwards it to the actuator (50); 4) The actuator (50) sends a command to the pinch valve (30) to shut off or release the hose.

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