An automatic liquid flow control device

Abstract

The invention discloses an automatic liquid flow control device, which relates to the technical field of flow control, and is used to solve the problem that the flow meter commonly used in the existing liquid flow control device drifts in accuracy during use and needs frequent cleaning and frequent calibration. The automatic liquid flow control system comprises a flow control device and a control module, and the flow control device consists of a flip reset mechanism and a correction mechanism; the flip reset mechanism comprises an outer box body, the top of the outer box body is covered with a box cover, and a liquid inlet pipe is inserted on the box cover. The invention can overcome various problems in the on-site use environment, and is completely unaffected by factors such as various physical and chemical properties of liquid medicines, impurities, temperature changes, changes in medicine supply pressure, and fluctuations in the electrical system, and realizes high-precision, maintenance-free, calibration-free, and highly stable accurate medicine addition.

Description

Technical Field

[0001] The invention relates to the technical field of flow control, and in particular to an automatic liquid flow control device. Background Art

[0002] At present, there is a demand for precise addition of small flow rates of reagents in many industries, and various flow meters or metering pumps are usually used as means of flow detection and control. However, since the added liquid reagents often have unique physical and chemical properties, such as corrosiveness, solubility, etc., some reagents are sensitive to temperature and become more viscous in low winter temperatures. Some reagents have high impurity content. The above characteristics are not conducive to the accurate measurement of the flow meter. Based on the above unfavorable factors, the design scheme of using the flow meter has the disadvantages of drifting accuracy during the use of the flow meter and requiring frequent cleaning and frequent calibration. In extreme cases, such as when the temperature drops to a certain level in winter, the viscosity of the reagent changes greatly, and the flow meter detection data will be seriously distorted and cannot be used.

[0003] When using various metering pumps, the corrosiveness, solubility and impurity problems of the medicines often have an adverse effect on the working state of the pump. At the same time, changes in the medicine supply pressure and fluctuations in the power supply system will also have an adverse effect on the flow rate of the pump.

[0004] Based on the above problems, an automated liquid flow control device can overcome various problems in the on-site use environment, is completely unaffected by factors such as the physical and chemical properties of the agent, impurities, temperature changes, changes in drug supply pressure, and electrical system fluctuations, and can achieve high-precision, high-stability, and precise liquid agent addition. Summary of the invention

[0005] The present invention provides an automated liquid flow control device, which solves the technical problem that the flow meter commonly used in the liquid flow control device in the prior art has accuracy drift during use and requires frequent cleaning and frequent calibration.

[0006] The present invention solves the above technical problems in the following way: an automatic liquid flow control device, comprising:

[0007] The flow control device is used to automatically control the liquid flow, and is composed of a flip reset mechanism and a correction mechanism;

[0008] The flip reset mechanism includes an outer box body, the top of the outer box body is covered with a box cover, the box cover is inserted with a liquid inlet pipe, and the liquid inlet pipe penetrates the box cover and extends into the outer box body, the bottom of the outer box body is connected with a liquid discharge port, the outer box body is rotatably connected with two shafts through two bearings, a flip shell is fixed between the two shafts, the two shafts are far away from each other at the ends penetrating the outer box body and fixed with indicators, the bottom of the flip shell is V-shaped, and the two shafts are connected to the middle of the flip shell, and a correction mechanism is arranged on the right side of the outer box body;

[0009] The correction mechanism includes a mounting plate, the mounting plate is fixed on the side wall of the outer box body, an electric telescopic rod is mounted on the mounting plate, a lower pressure plate is fixed to the extended end of the electric telescopic rod, a concave hanging plate is fixed to the bottom of the lower pressure plate through a plurality of buffer springs, two sliding rods are fixed to the top of the concave hanging plate, two sliding sleeves are fixed to the bottom of the mounting plate, and the two sliding rods are movably inserted in the two sliding sleeves respectively, a worm is rotatably connected in the concave hanging plate through a rotating rod, a motor is mounted on the side wall of the concave hanging plate, and the output end of the motor passes through the concave hanging plate and is fixed to the rotating rod, a gear is fixed to the surface of the shaft, and the gear is meshed with the worm;

[0010] A control module, used to detect the operation of the flow control device and repair abnormalities, and composed of a test unit and a detection unit;

[0011] The test unit is used to test the flow control of the flow control device; the detection unit is used to monitor the operating state of the flip reset mechanism and adjust it through the correction mechanism.

[0012] Based on the above technical solution, the present invention can also be improved as follows.

[0013] Further, the specific steps of the test unit testing the flow control of the flow control device are as follows:

[0014] First, the liquid is introduced into the flip shell in the outer box through the liquid inlet pipe, and the flow rate of the liquid in the liquid inlet pipe is controlled by the opening control valve installed on the liquid inlet pipe. When the liquid level in the flip shell continues to rise and reaches the critical point, the flip shell will flip in the outer box through two shafts and the corresponding two bearings, and at the same time drive the indicator marks connected to the ends of the two shafts to shake, and the pointing direction of the indicator marks is monitored at this time;

[0015] The specific monitoring steps are as follows: a vertical line is drawn upward from the axis position of the shaft as a point to form a comparison line, and the indication direction of the indicator mark is marked as the indication line intersecting the comparison line, and the angle formed by the indication line and the comparison line is analyzed by image analysis. When the liquid just enters the flip shell, the flip shell will shake at a small angle, and the indication line and the comparison line will also change slightly. An angle change threshold is set. When the angle formed by the indication line and the comparison line exceeds the preset angle change threshold, it is determined that the flip shell starts to flip;

[0016] Record the time interval from when the opening control valve in the liquid inlet pipe is opened to when the angle formed by the indicator line and the comparison line exceeds the preset angle change threshold, and mark it as the loading time;

[0017] Then, after the angle formed by the indicator line and the comparison line exceeds the preset angle change threshold and the liquid in the flip shell is completely poured out, the time required for the angle formed by the indicator line and the comparison line to be within the preset angle change threshold is recorded and marked as the pouring time;

[0018] The same liquid is tested at the same flow rate with the same opening according to the above monitoring steps, and several groups of loading time and dumping time are obtained respectively, and a standard loading time interval and a standard dumping time interval are set, and the loading time and dumping time data within the standard loading time interval and the standard dumping time interval are screened, and the loading time and dumping time data outside the standard loading time interval and the standard dumping time interval are eliminated, and the screened loading time and dumping time data are respectively obtained by the mean calculation formula to obtain the loading time mean and the dumping time mean; and then the obtained loading time mean and dumping time mean are summed to obtain the liquid attribute value;

[0019] The liquid attribute values ​​obtained from the tests of different types of liquids are marked and classified respectively, different liquid attribute value intervals are established, and each liquid attribute value interval is marked as a different level, and the liquid attribute value interval level to which the different types of liquids belong is determined respectively.

[0020] Furthermore, the specific steps of the test unit monitoring the operating state of the flip reset mechanism and adjusting it through the correction mechanism are as follows:

[0021] Firstly, the liquid is compared with different liquid types tested in the test unit to determine the liquid attribute value interval level to which the liquid belongs, and the mean loading time and the mean pouring time of the liquid are obtained, and the reasonable loading time interval and the reasonable pouring time interval are established respectively with the mean loading time and the mean pouring time as the base values;

[0022] Then, the liquid enters the flip shell in the outer box through the liquid inlet pipe, and the real-time loading time is obtained by recording the opening time point of the opening control valve in the liquid inlet pipe and the time point when the angle formed by the indicator line and the comparison line when the indicator mark rotates exceeds the preset angle change threshold, and calculating the time difference, and the obtained real-time loading time is compared with the established reasonable loading time interval. When the real-time loading time is outside the reasonable loading time interval, it is judged that the flip shell dumps the internal liquid abnormally, and a loading abnormality signal is generated. According to the generated loading abnormality signal, a preliminary adjustment operation is performed through the correction mechanism;

[0023] After completing the preliminary adjustment operation, the dumping time is continuously monitored, and the time point when the angle formed by the indicator line and the comparison line exceeds the preset angle change threshold value and the time point when the angle formed by the indicator line and the comparison line is restored to within the preset angle change threshold value after the liquid in the flip shell is dumped are detected in real time, and the time difference is calculated to obtain the real-time dumping time;

[0024] The real-time dumping time is then compared with the established reasonable dumping time interval. When the real-time dumping time is outside the reasonable dumping time interval, it is determined that the flip shell cannot be reset, and a dumping abnormality signal is generated. According to the generated dumping abnormality signal, preliminary adjustment operations and repair operations are performed through the correction mechanism.

[0025] Further, the specific steps of the preliminary adjustment operation are as follows:

[0026] First, the extension of the electric telescopic rod is controlled to drive the lower pressure plate fixed at the extended end of the electric telescopic rod and several buffer springs connected to the bottom to press down, thereby driving the concave hanging plates connected to the bottom of the buffer springs to move downward, and the concave hanging plates are moved downward in the two sliding sleeves fixed at the bottom of the mounting plate through two sliding rods, so that the worm connected by the rotating rod in the concave hanging plate is engaged with the gear fixed on the surface of the shaft rod, and the setting of several buffer springs can also provide buffering for the engagement of the worm and the gear. After the engagement is completed, the motor is controlled to drive the rotating rod and the fixed worm to rotate, so that the fixed shaft rod drives the entire flip shell to flip, and obtains the required flipping angle of the two indicator marks connected to the flip shell at this time point, and drives the flip shell to the required flipping angle by controlling the rotation angle of the motor.

[0027] Further, the specific steps of the repair operation are as follows:

[0028] First, the worm is driven to rotate by controlling the motor, so that the meshing gear drives the shaft and the flip shell fixed in the outer box to flip, and the preset number of turns is quickly flipped at a preset speed, driving the flip shell to flip quickly to gather the relatively viscous liquid in the flip shell, and then the rotation of the motor is controlled to make the opening of the flip shell face directly downward, that is, the angle formed by the indicator line formed by the two indicator marks and the comparison line is 180°, and the flip shell maintains this angle for a preset time, and the relatively viscous liquid adhering to the inner wall of the flip shell is emptied. After the liquid is emptied, the flip shell is reset, and the electric telescopic rod connected to its extended end and a number of buffer springs are driven by the electric telescopic rod to lift the entire concave hanging plate upward, so that the worm and the gear are disengaged.

[0029] The beneficial effects of the present invention are as follows: the present invention provides an automated liquid flow control device having the following advantages:

[0030] The present invention can overcome various problems in the on-site use environment and is completely unaffected by factors such as the various physical and chemical properties of liquid medicines, impurities, temperature changes, changes in medicine supply pressure, and fluctuations in the electrical system, thereby achieving high-precision, maintenance-free, calibration-free, and highly stable accurate medicine addition; in conjunction with the correction mechanism, anomalies occurring during the liquid flow control process can be detected and repaired, which is conducive to achieving automation.

[0031] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 is a system block diagram of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the flow control device in the present invention;

[0035] Figure 3 For the present invention Figure 2 Partial view at point A in the middle;

[0036] Figure 4 For the present invention Figure 2 Exploded view in ;

[0037] Figure 5 For the present invention Figure 4 The second perspective image in .

[0038] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0039] 1. Outer box body; 2. Box cover; 3. Liquid inlet pipe; 4. Liquid discharge port; 5. Bearing; 6. Shaft; 7. Flip shell; 8. Indicator mark; 9. Mounting plate; 10. Electric telescopic rod; 11. Sliding sleeve; 12. Sliding rod; 13. Concave hanging plate; 14. Rotating rod; 15. Motor; 16. Worm; 17. Gear; 18. Buffer spring; 19. Lower pressure plate. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-Figure 5 The principles and features of the present invention are described, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0041] like Figure 1-Figure 5 As shown, the present invention provides an automated liquid flow control device, which is implemented based on an automated liquid flow control system. The system includes a flow control device and a control module;

[0042] The flow control device is composed of a flip reset mechanism and a correction mechanism;

[0043] The flip reset mechanism comprises an outer box body 1, the top of the outer box body 1 is covered with a box cover 2, a liquid inlet pipe 3 is inserted on the box cover 2, and the liquid inlet pipe 3 passes through the box cover 2 and extends into the outer box body 1, the bottom of the outer box body 1 is connected with a liquid discharge port 4, two shafts 6 are rotatably connected to the outer box body 1 through two bearings 5, a flip shell 7 is fixed between the two shafts 6, the two shafts 6 are far away from each other The ends of the two shafts 6 pass through the outer box body 1 and are fixed with indicators 8, the bottom of the flip shell 7 is V-shaped, and the two shafts 6 are connected to the middle of the flip shell 7; a correction mechanism is arranged on the right side of the outer box body 1; in the flip reset mechanism, the bottom of the flip shell 7 is V-shaped to form an irregular shell, and the top is open, and the two shafts 6 are connected to the flip shell 7 at a position deviated from the center of the vertical line of the side view, The flip shell 7 is a whole formed. When liquid flows into the flip shell 7 from the liquid inlet pipe 3 penetrating the box cover 2, as the amount of liquid entering the flip shell 7 increases, the liquid level in the flip shell 7 continues to rise. Since the two shaft rods 6 are eccentric, the instability of the entire flip shell 7 gradually increases. When the overall weight of the flip shell 7 is heavy on the top and light on the bottom and reaches the critical position, the entire flip shell 7 is flipped in the outer box body 1 through the two shaft rods 6 and the corresponding two bearings 5, and the liquid in the flip shell 7 is poured out. After the liquid in the flip shell 7 is emptied, since the bottom of the flip shell 7 is heavier than the top, the flip shell 7 will automatically reset to the initial position with the opening facing upward through the two shaft rods 6, completing a flip. The characteristic is that the amount of liquid discharged each time the flip shell 7 is flipped is consistent.

[0044] The correction mechanism includes a mounting plate 9, which is fixed on the side wall of the outer box body 1, and an electric telescopic rod 10 is installed on the mounting plate 9. A lower pressure plate 19 is fixed to the extended end of the electric telescopic rod 10, and a concave hanging plate 13 is fixed to the bottom of the lower pressure plate 19 through a plurality of buffer springs 18. Two slide rods 12 are fixed to the top of the concave hanging plate 13, and two sliding sleeves 11 are fixed to the bottom of the mounting plate 9, and the two slide rods 12 are respectively movably inserted in the two sliding sleeves 11. A worm 16 is rotatably connected to the concave hanging plate 13 through a rotating rod 14. A motor 15 is installed on the side wall of the concave hanging plate 13, and the output end of the motor 15 passes through the concave hanging plate 13 and is fixed to the rotating rod 14. A gear 17 is fixed to the surface of the shaft 6, and the gear 17 is meshed with the worm 16;

[0045] The control module consists of a test unit and a detection unit;

[0046] The test unit is used to test the flow control of the flow control device; the liquid is introduced into the flip shell 7 in the outer box body 1 through the liquid inlet pipe 3, and the flow rate of the liquid in the liquid inlet pipe 3 is controlled by the opening control valve installed on the liquid inlet pipe 3. In the process of the liquid level in the flip shell 7 constantly rising, when it reaches the critical point, the flip shell 7 will be flipped in the outer box body 1 through the two shafts 6 and the corresponding two bearings 5, and at the same time, it will drive the indicator marks 8 connected to the ends of the two shafts 6 to shake. At this time, the pointing direction of the indicator mark 8 is monitored, and specifically, a vertical line is drawn upward with the axial center position of the shaft 6 as a point to form a comparison line, and the indicating direction of the indicator mark 8 is marked as the indicating line intersecting with the comparison line, and the indicator is analyzed by image analysis. The angle formed by the indicator line and the comparison line, when the liquid just enters the flip shell 7, the flip shell 7 will shake at a small angle, and the indicator line and the comparison line will also change slightly. An angle change threshold is set. When it is monitored that the angle formed by the indicator line and the comparison line exceeds the preset angle change threshold, it is determined that the flip shell 7 starts to flip, and the time interval from the opening of the opening control valve in the liquid inlet pipe 3 to the angle formed by the indicator line and the comparison line exceeding the preset angle change threshold is recorded, and calibrated as the loading time; after recording that the angle formed by the indicator line and the comparison line exceeds the preset angle change threshold, the time required for the angle formed by the indicator line and the comparison line to be within the preset angle change threshold after the liquid in the flip shell 7 is dumped is marked as the dumping time;

[0047] In this step, the same liquid is tested at the same flow rate with the same opening, and several groups of loading time and dumping time are obtained respectively, and a standard loading time interval and a standard dumping time interval are set, and the loading time and dumping time data within the standard loading time interval and the standard dumping time interval are screened, and the loading time and dumping time data outside the standard loading time interval and the standard dumping time interval are eliminated, and the screened loading time and dumping time data are respectively obtained by the mean calculation formula to obtain the loading time mean and the dumping time mean; and then the obtained loading time mean and dumping time mean are summed to obtain the liquid attribute value;

[0048] The liquid attribute values ​​obtained from the tests of different types of liquids are marked and classified respectively, different liquid attribute value intervals are established, and each liquid attribute value interval is marked as a different level, and the liquid attribute value interval level to which the different types of liquids belong is determined respectively.

[0049] The detection unit is used to monitor the operating state of the flip reset mechanism and adjust it through the correction mechanism;

[0050] First, the liquid is compared with different liquid types tested in the test unit to determine the liquid attribute value interval level to which the liquid belongs, so as to obtain the mean loading time and the mean dumping time of the liquid, and respectively establish a reasonable loading time interval and a reasonable dumping time interval with the mean loading time and the mean dumping time as the base values; then the liquid enters the flip shell 7 in the outer box body 1 through the liquid inlet pipe 3, and the real-time loading time is obtained by recording the opening time point of the opening control valve in the liquid inlet pipe 3 and the time point when the angle formed by the indicator line and the comparison line when the indicator mark 8 rotates exceeds the preset angle change threshold, and calculating the time difference, and the obtained real-time loading time is compared with the established reasonable loading time interval. When the real-time loading time is outside the reasonable loading time interval, it is judged that the flipping of the flip shell 7 may be due to the rotation of the shaft 6 being stuck or the opening control valve controlling the liquid flow rate being distorted, resulting in abnormal dumping of the internal liquid of the flip shell 7, and a loading abnormality signal is generated, and a preliminary adjustment operation is performed through the correction mechanism according to the generated loading abnormality signal. The preliminary adjustment operation steps are as follows:

[0051] First, the extension of the electric telescopic rod 10 is controlled to drive the lower pressure plate 19 fixed at the extended end of the electric telescopic rod 10 and the several buffer springs 18 connected at the bottom to press down, thereby driving the concave hanging plate 13 connected at the bottom of the several buffer springs 18 to move downward, and the concave hanging plate 13 is moved downward in the two sliding sleeves 11 fixed at the bottom of the mounting plate 9 through two sliding rods 12, so that the worm 16 connected to the concave hanging plate 13 through the rotating rod 14 is engaged with the gear 17 fixed on the surface of the shaft rod 6. The setting of several buffer springs 18 can also provide buffering for the engagement of the worm 16 and the gear 17. After the engagement is completed, the control motor 15 drives the rotating rod 14 and the fixed worm 16 to rotate, so that the fixed shaft rod 6 drives the entire flip shell 7 to flip, and obtains the angle at which the two indicator marks 8 connected to the flip shell 7 should flip at this time point, and drives the flip shell 7 to flip to the angle that should be flipped by controlling the rotation angle of the motor 15, and when the flip shell 7 dumps the internal liquid, the opening control valve in the liquid inlet pipe 3 is controlled to stop the introduction of liquid into the flip shell 7;

[0052] After completing the preliminary adjustment operation, the subsequent dumping time is continuously monitored, and the time node when the angle formed by the indicator line and the comparison line exceeds the preset angle change threshold and the time node when the angle formed by the indicator line and the comparison line is restored to within the preset angle change threshold after the liquid in the flip shell 7 is dumped is detected in real time, and the time difference is calculated to obtain the real-time dumping time, and then the real-time dumping time is compared with the established reasonable dumping time interval. When the real-time dumping time is outside the reasonable dumping time interval, it is judged that the resetting and flipping of the flip shell 7 may be due to the jamming of the shaft rod 6 or the excessive viscosity of the liquid adhering to the inner wall of the flip shell 7, resulting in the gravity of the flip shell 7 being unable to achieve resetting, and a dumping abnormal signal is generated. According to the generated dumping abnormal signal, the preliminary adjustment operation and the repair operation are performed through the correction mechanism. The preliminary adjustment operation refers to the above, and the flip shell 7 is reset at the specified time point through the preliminary adjustment operation; the specific steps of the repair operation are as follows:

[0053] First, the worm 16 is driven to rotate by controlling the motor 15, so that the meshing gear 17 drives the shaft 6 and the flip shell 7 fixed in the outer box body 1 to flip, and the preset number of turns can be three, five or seven turns according to the preset speed, so as to drive the flip shell 7 to flip quickly so that the relatively viscous liquid in the flip shell 7 can gather, and then the rotation of the motor 15 is controlled to make the opening of the flip shell 7 face directly downward, that is, the angle formed by the indicator line formed by the two indicator marks 8 and the comparison line is 180°, and the flip shell 7 maintains this angle for a preset time, which can be 5min, 8min or 10min, so as to empty the relatively viscous liquid adhering to the inner wall of the flip shell 7. After the liquid is emptied, the flip shell 7 is reset, and the electric telescopic rod 10 and a plurality of buffer springs 18 connected to its extended end are driven by the electric telescopic rod 10 to lift the entire concave hanging plate 13 upward, so that the worm 16 and the gear 17 are disengaged.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An automated liquid flow control device, characterized in that: include: The flow control device is used to automatically control the liquid flow, and is composed of a flip reset mechanism and a correction mechanism; The flip reset mechanism comprises an outer box body (1), the top of the outer box body (1) is covered with a box cover (2), a liquid inlet pipe (3) is inserted into the box cover (2), and the liquid inlet pipe (3) passes through the box cover (2) and extends into the outer box body (1), the bottom of the outer box body (1) is connected with a liquid discharge port (4), two shafts (6) are rotatably connected in the outer box body (1) through two bearings (5), a flip shell (7) is fixed between the two shafts (6), the two ends of the two shafts (6) both pass through the outer box body (1) and are fixed with indicator marks (8), the bottom of the flip shell (7) is V-shaped, and the two shafts (6) are connected to the middle of the flip shell (7), and a correction mechanism is arranged on the right side of the outer box body (1); The correction mechanism comprises a mounting plate (9), wherein the mounting plate (9) is fixed on the side wall of the outer box body (1), an electric telescopic rod (10) is mounted on the mounting plate (9), a lower pressure plate (19) is fixed to the extended end of the electric telescopic rod (10), a concave hanging plate (13) is fixed to the bottom of the lower pressure plate (19) via a plurality of buffer springs (18), two sliding rods (12) are fixed to the top of the concave hanging plate (13), and a Two sliding sleeves (11), and two sliding rods (12) are respectively movably inserted into the two sliding sleeves (11); a worm (16) is rotatably connected in the concave hanging plate (13) through a rotating rod (14); a motor (15) is installed on the side wall of the concave hanging plate (13), and the output end of the motor (15) passes through the concave hanging plate (13) and is fixed to the rotating rod (14); a gear (17) is fixed on the surface of the shaft rod (6), and the gear (17) is meshed with the worm (16); A control module, used to detect the operation of the flow control device and repair abnormalities, and composed of a test unit and a detection unit; The test unit is used to test the flow control of the flow control device; The detection unit is used to monitor the operating state of the flip reset mechanism and adjust it through the correction mechanism.

2. The automatic liquid flow control device according to claim 1, characterized in that: The specific steps of the test unit testing the flow control of the flow control device are as follows: First, liquid is introduced into the flip shell (7) in the outer box body (1) through the liquid inlet pipe (3), and the flow rate of the liquid in the liquid inlet pipe (3) is controlled by the opening control valve installed on the liquid inlet pipe (3). When the liquid level in the flip shell (7) continues to rise and reaches a critical point, the flip shell (7) will flip in the outer box body (1) through the two shafts (6) and the corresponding two bearings (5), and at the same time drive the indicator marks (8) connected to the ends of the two shafts (6) to shake, and at this time, the pointing direction of the indicator marks (8) is monitored; The specific monitoring steps are as follows: a vertical line is drawn upward from the axis position of the shaft rod (6) as a point to form a comparison line, and the indication direction of the indicator mark (8) is marked as the indication line intersecting the comparison line, and the angle formed by the indication line and the comparison line is analyzed by image analysis. When the liquid just enters the flip shell (7), the flip shell (7) will shake at a small angle, and the indication line and the comparison line will also change slightly. An angle change threshold is set. When it is monitored that the angle formed by the indication line and the comparison line exceeds the preset angle change threshold, it is determined that the flip shell (7) starts to flip; Recording the time interval from when the opening control valve in the liquid inlet pipe (3) is opened to when the angle formed by the indicator line and the comparison line exceeds a preset angle change threshold, and marking it as the loading time; Then, after the angle formed by the indicator line and the comparison line exceeds the preset angle change threshold and the liquid in the flip shell (7) is completely poured out, the time required for the angle formed by the indicator line and the comparison line to be within the preset angle change threshold is recorded and marked as the pouring time; The same liquid is tested at the same flow rate with the same opening according to the above monitoring steps, and several groups of loading time and dumping time are obtained respectively, and a standard loading time interval and a standard dumping time interval are set, and the loading time and dumping time data within the standard loading time interval and the standard dumping time interval are screened, and the loading time and dumping time data outside the standard loading time interval and the standard dumping time interval are eliminated, and the screened loading time and dumping time data are respectively obtained by the mean calculation formula to obtain the loading time mean and the dumping time mean; and then the obtained loading time mean and dumping time mean are summed to obtain the liquid attribute value; The liquid attribute values ​​obtained from the tests of different types of liquids are marked and classified respectively, different liquid attribute value intervals are established, and each liquid attribute value interval is marked as a different level, and the liquid attribute value interval level to which the different types of liquids belong is determined respectively.

3. The automatic liquid flow control device according to claim 1, characterized in that: The specific steps of the test unit monitoring the operating state of the flip reset mechanism and adjusting it through the correction mechanism are as follows: Firstly, the liquid is compared with different liquid types tested in the test unit to determine the liquid attribute value interval level to which the liquid belongs, and the mean loading time and the mean pouring time of the liquid are obtained, and the reasonable loading time interval and the reasonable pouring time interval are established respectively with the mean loading time and the mean pouring time as the base values; The liquid then enters the flip shell (7) in the outer box (1) through the liquid inlet pipe (3), and the opening time point of the opening control valve in the liquid inlet pipe (3) and the time point when the angle formed by the indicator line and the comparison line when the indicator mark (8) rotates exceeds the preset angle change threshold value are recorded, and the time difference is calculated to obtain the real-time loading time, and the obtained real-time loading time is compared with the established reasonable loading time interval. When the real-time loading time is outside the reasonable loading time interval, it is determined that the flip shell (7) dumps the internal liquid abnormally, and a loading abnormality signal is generated. According to the generated loading abnormality signal, a preliminary adjustment operation is performed through the correction mechanism; After the initial adjustment operation is completed, the pouring time is continuously monitored, and the time point when the angle formed by the indicator line and the comparison line exceeds the preset angle change threshold value and the time point when the angle formed by the indicator line and the comparison line is restored to within the preset angle change threshold value after the liquid in the flip shell (7) is poured out are detected in real time, and the time difference is calculated to obtain the real-time pouring time; The real-time dumping time is then compared with the established reasonable dumping time interval. When the real-time dumping time is outside the reasonable dumping time interval, it is determined that the flip shell (7) cannot be reset, and a dumping abnormality signal is generated. According to the generated dumping abnormality signal, a preliminary adjustment operation and a repair operation are performed through the correction mechanism.

4. The automatic liquid flow control device according to claim 3, characterized in that: The specific steps of the preliminary adjustment operation are as follows: First, the extension of the electric telescopic rod (10) is controlled to drive the lower pressing plate (19) fixed at the extended end of the electric telescopic rod (10) and the plurality of buffer springs (18) connected at the bottom to be pressed downward, thereby driving the concave hanging plate (13) connected at the bottom of the plurality of buffer springs (18) to move downward, and the concave hanging plate (13) moves downward in the two sliding sleeves (11) fixed at the bottom of the mounting plate (9) through the two sliding rods (12), so that the worm (16) connected to the concave hanging plate (13) through the rotating rod (14) is fixed to the surface of the shaft rod (6) The gear (17) is meshed with the worm (16), and the setting of a plurality of buffer springs (18) can also provide buffer for the meshing of the worm (16) and the gear (17). After the meshing is completed, the control motor (15) drives the rotating rod (14) and the fixed worm (16) to rotate, so that the fixed shaft rod (6) drives the entire flip shell (7) to flip, and obtains the required flipping angle of the two indicator marks (8) connected to the flip shell (7) at this time point, and drives the flip shell (7) to flip to the required flipping angle by controlling the rotation angle of the motor (15).

5. The automatic liquid flow control device according to claim 3, characterized in that: The specific steps of the repair operation are as follows: First, the motor (15) is controlled to drive the worm (16) to rotate, so that the meshing gear (17) drives the shaft (6) and the flip shell (7) fixed in the outer box (1) to flip, and the preset number of turns is quickly flipped at a preset speed, so that the flip shell (7) is quickly flipped to gather the relatively viscous liquid in the flip shell (7). Then, the motor (15) is controlled to rotate so that the opening of the flip shell (7) faces directly downward, that is, the angle formed by the indicator line formed by the two indicator marks (8) and the comparison line is 180 degrees, and the flip shell (7) is maintained at this angle for a preset time, so that the relatively viscous liquid adhering to the inner wall of the flip shell (7) is emptied. After the liquid is emptied, the flip shell (7) is reset, and the electric telescopic rod (10) drives the electric telescopic rod (10) and a plurality of buffer springs (18) connected to its extended end to lift the entire concave hanging plate (13) upward, so that the worm (16) and the gear (17) are disengaged.

Images