A liquid level meter with anti-blocking separation mechanism

Abstract

The present invention relates to the field of liquid level measurement technology, and in particular to a liquid level meter with an anti-blocking separation mechanism, including a signal processor and a pressure sensor, an upper shell is arranged on the outer side of the pressure sensor, and the pressure sensor and the signal processor are electrically connected through a cable, and further comprising: a lower shell connected to the lower end of the upper shell, and a partition and a vertical plate are respectively fixed to the upper and lower ends of the inner side of the lower shell. The present invention can drive two rotating columns to rotate 90° in the opposite direction at the same time through a synchronous reversing mechanism, thereby driving the first flow hole and the second flow hole inside thereof to rotate synchronously, so that the blocked flow hole is rotated to be connected with the middle flow channel and the discharge hole, and then the solid matter inside the blocked flow hole is flushed out through the backwash dredging mechanism, which can play a dredging role and restore the blocked flow hole to be unobstructed. There is no need to manually disassemble and clean the liquid level meter, which greatly shortens the cleaning time and reduces the impact on production and use.

Description

Technical Field

[0001] The invention relates to the technical field of liquid level measurement, and in particular to a liquid level meter with an anti-blocking separation mechanism. Background Art

[0002] In the chemical production process, some sedimentation tanks or sewage tanks need to measure the liquid level. The commonly used type of liquid level gauge is the static pressure level gauge. The static pressure level gauge is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. It uses advanced isolated diffused silicon sensitive elements or ceramic capacitor pressure sensitive sensors to convert static pressure into electrical signals, which are then converted into standard electrical signals after temperature compensation and linear correction.

[0003] After searching, a Chinese patent with publication number: CN211855489U discloses a submersible static pressure level gauge with an anti-blocking structure, including a filter box, a mounting plate bolted to the front of the filter box, a filter mechanism provided in the inner cavity of the filter box, a through hole opened at the center of the top of the filter box, a probe embedded in the inner cavity of the through hole, the bottom of the probe passes through the through hole and extends to the inner cavity of the filter box, and support frames are bolted on all four sides of the bottom of the filter box.

[0004] Based on the above search and combined with actual problems, it was found that: although the liquid level meter can filter solid matter in the liquid, as the use time increases, the filter device is gradually blocked by solid matter. When it is completely blocked, the pressure of the liquid cannot be fully transmitted to the pressure sensor, resulting in the pressure detected by the pressure sensor being lower than the actual pressure. The staff cannot know whether the liquid level meter is blocked in time, which will seriously affect the normal measurement of the liquid level meter. Moreover, after the filter device of the liquid level meter is blocked, it takes a lot of time to clean it, which reduces the cleaning efficiency and affects the normal use of the user. Summary of the invention

[0005] The object of the present invention is to provide a liquid level meter with an anti-blocking separation mechanism to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: a liquid level meter with an anti-blocking separation mechanism, including a signal processor and a pressure sensor, an upper shell is arranged on the outer side of the pressure sensor, and the pressure sensor and the signal processor are electrically connected through a cable, and also includes: a lower shell connected to the lower end of the upper shell, a partition plate and a vertical plate are respectively fixed at the upper and lower ends of the inner side of the lower shell, two main flow channels are opened on both sides of the interior of the vertical plate, the upper ends of the two main flow channels are connected to extension tubes connected to the inner side of the upper shell, a cylindrical cavity is opened inside the vertical plate at the lower end position of the two main flow channels, the inner sides of the two cylindrical cavities are rotatably connected to rotating columns, and the interiors of the two rotating columns are opened with a first flow hole and a second flow hole; a synchronous reversing mechanism is arranged between the two rotating columns; a recoil dredging mechanism is also arranged inside the vertical plate; and a sensing mechanism is arranged on the inner sides of the first flow hole and the second flow hole.

[0007] Preferably, the synchronous reversing mechanism includes two extension shafts fixed at one end of the two rotating columns and extending to the outside of the vertical plate, an electric telescopic rod installed at the lower end of the inner side of the lower shell, and a controller installed on the outer side of the vertical plate. A turntable is fixed at one end of the two extension shafts, and an open groove is opened on one side of the two turntables. A lifting rod is fixed to the telescopic end of the electric telescopic rod, and two pins are rotatably connected to both ends of the lifting rod. The two pins are respectively movably connected to the inner sides of the two open grooves, and the two open grooves are symmetrically arranged. The electric telescopic rod is electrically connected to the controller.

[0008] Preferably, the first flow hole and the second flow hole located inside the same rotating column are cross-arranged at 90 degrees, and the first flow hole and the second flow hole are located in two mutually parallel planes that do not intersect.

[0009] Preferably, the recoil dredging mechanism includes an air storage chamber opened inside the vertical plate between the two main flow channels, an intermediate flow channel opened inside the vertical plate at a position below the air storage chamber, and two discharge holes opened on both sides of the vertical plate and aligned with the intermediate flow channel. The lower end of the air storage chamber is connected to the inner side of the intermediate flow channel through an electrically controlled valve, the two discharge holes are connected to the outer side of the lower shell, and the electrically controlled valve is electrically connected to the controller.

[0010] Preferably, a gas filling pipe penetrating through the partition is inserted into the upper end of the gas storage cavity, and a one-way valve is arranged on the inner side of the gas filling pipe.

[0011] Preferably, a fixing rod is fixed on one side of the two drainage holes, and a non-return cover plate is rotatably connected to the outer sides of the two fixing rods. The two non-return cover plates are elastically connected to the two fixing rods respectively through a torsion spring.

[0012] Preferably, the sensing mechanism includes a guide groove opened on one side of the second flow hole, a flow hole inner shell slidably inserted on the inner side of the second flow hole, and a trigger switch installed at one end of the inner side of the guide groove. A slider slidably connected to the inner side of the guide groove is fixed on one side of the flow hole inner shell, one end of the slider is elastically connected to the inner side of the guide groove through a return spring, and the trigger switch is electrically connected to the controller.

[0013] Preferably, a telescopic cylinder is slidably inserted at the lower end of the two main channels, and a push block guide groove is provided on one side of the lower end of the two main channels, an electromagnet is installed on the inner end of the two push block guide grooves, and the two electromagnets are electrically connected to the controller, a plurality of liquid inlet holes are provided on the lower end side walls of the two telescopic cylinders, and the upper ends of the two telescopic cylinders are elastically connected to the inner sides of the two main channels through telescopic cylinder springs, and a push block slidably connected to the inner side of the push block guide groove is fixed on one side of the lower end of the two telescopic cylinders.

[0014] Preferably, the upper shell and the lower shell are detachably connected via threads.

[0015] The present invention provides a liquid level gauge with an anti-blocking separation mechanism through improvement, which has the following improvements and advantages compared with the prior art:

[0016] Firstly, the present invention can drive the two rotating columns to rotate 90° in the opposite direction at the same time through the synchronous reversing mechanism, thereby driving the first flow hole and the second flow hole therein to rotate synchronously, so that the blocked flow hole is rotated to be connected with the middle flow channel and the discharge hole, and then the solid matter inside the blocked flow hole is flushed out through the backwash dredging mechanism, which can play a dredging role and restore the blocked flow hole to be unobstructed. There is no need to manually disassemble and clean the liquid level meter, which greatly shortens the cleaning time and reduces the impact on production and use.

[0017] Secondly: The present invention arranges a sensing mechanism inside each first flow hole and the second flow hole. When the inside of the flow hole is blocked by solid objects, the sensing mechanism can be triggered. The sensing mechanism sends a signal to the controller, so as to quickly control the operation of the synchronous reversing mechanism and the recoil dredging mechanism, quickly dredge the blocked flow hole, improve the dredging efficiency, and avoid long-term blockage of the flow hole, which affects the normal measurement of the liquid level by the liquid level meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure inside the upper shell and the lower shell in the present invention;

[0021] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 4 It is a cross-sectional structural schematic diagram of the first state of the present invention;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 6 is a cross-sectional structural schematic diagram of the second state of the present invention;

[0025] Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0026] Figure 8 It is a schematic diagram of the structure of the rotating column in the present invention in a disassembled state;

[0027] Fig. 9 It is a schematic diagram of the cross-sectional structure of the rotating column in the present invention.

[0028] Reference numerals:

[0029] 1. Signal processor; 2. Upper shell; 3. Pressure sensor; 4. Cable; 5. Lower shell; 6. Vertical plate; 7. Main channel; 8. Extension tube; 9. Baffle; 10. Cylindrical cavity; 11. Rotating column; 12. First flow hole; 13. Second flow hole; 15. Controller; 101. Extension shaft; 102. Turntable; 103. Opening slot; 104. Electric telescopic rod; 105. Lifting rod; 106. Pin; 201. Gas storage cavity; 202. Intermediate flow 203, discharge hole; 204, electric control valve; 205, gas pipe; 206, one-way valve; 207, check cover; 208, fixing rod; 209, torsion spring; 301, guide groove; 302, flow hole inner shell; 303, slider; 304, trigger switch; 305, reset spring; 401, telescopic cylinder; 402, telescopic cylinder spring; 403, liquid inlet hole; 404, push block guide groove; 405, push block; 406, electromagnet. DETAILED DESCRIPTION

[0030] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only 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.

[0031] The present invention provides a liquid level gauge with an anti-blocking separation mechanism through improvement. The technical solution of the present invention is:

[0032] like Figures 1 to 9 As shown, an embodiment of the present invention provides a liquid level meter with an anti-blocking separation mechanism, including a signal processor 1 and a pressure sensor 3, an upper shell 2 is arranged on the outer side of the pressure sensor 3, and the pressure sensor 3 and the signal processor 1 are electrically connected through a cable 4, and also includes: a lower shell 5 connected to the lower end of the upper shell 2, a partition 9 and a vertical plate 6 are respectively fixed to the upper and lower ends of the inner side of the lower shell 5, two main flow channels 7 are opened on both sides of the interior of the vertical plate 6, and the upper ends of the two main flow channels 7 are connected to extension tubes 8 connected to the inner side of the upper shell 2, and cylindrical cavities 10 are opened in the interior of the vertical plate 6 at the lower end of the two main flow channels 7, and the inner sides of the two cylindrical cavities 10 are rotatably connected to rotating columns 11, and the interiors of the two rotating columns 11 are opened with first flow holes 12 and second flow holes 13; a synchronous reversing mechanism is arranged between the two rotating columns 11; a recoil dredging mechanism is also arranged in the interior of the vertical plate 6; and the inner sides of the first flow holes 12 and the second flow holes 13 are arranged with sensing mechanisms.

[0033] Furthermore, the synchronous reversing mechanism includes two extension shafts 101 fixed at one end of the two rotating columns 11 and extending to the outside of the vertical plate 6, an electric telescopic rod 104 installed at the lower end of the inner side of the lower shell 5, and a controller 15 installed on the outer side of the vertical plate 6. A turntable 102 is fixed at one end of the two extension shafts 101, and an open groove 103 is opened on one side of the two turntables 102. A lifting rod 105 is fixed to the telescopic end of the electric telescopic rod 104, and two pins 106 are rotatably connected at both ends of the lifting rod 105. The two pins 106 are movably connected to the inner sides of the two open grooves 103, and the two open grooves 103 are symmetrically arranged. The electric telescopic rod 104 is electrically connected to the controller 15;

[0034] The synchronous reversing mechanism drives the two rotating columns 11 to rotate 90° in the opposite direction at the same time, thereby driving the first flow hole 12 and the second flow hole 13 inside thereof to rotate synchronously, so that the unblocked flow hole is connected with the main flow channel 7, and the liquid pressure in the tank body can continue to be transmitted to the pressure sensor 3, ensuring that the liquid level meter can still measure normally when blocked.

[0035] Further, such as Figure 8As shown, the first flow hole 12 and the second flow hole 13 located inside the same rotating column 11 are cross-arranged at 90 degrees, and the first flow hole 12 and the second flow hole 13 are located in two mutually parallel planes that do not intersect;

[0036] The flow of liquid between the first flow hole 12 and the second flow hole 13 does not interfere with each other and is independent of each other, and the pressure of the liquid can be independently transmitted to the sensing end of the pressure sensor 3 .

[0037] Furthermore, the recoil dredging mechanism includes an air storage chamber 201 provided inside the vertical plate 6 and located between the two main flow channels 7, an intermediate flow channel 202 provided inside the vertical plate 6 and located below the air storage chamber 201, and two discharge holes 203 provided on both sides of the vertical plate 6 and aligned with the intermediate flow channel 202. The lower end of the air storage chamber 201 is connected to the inner side of the intermediate flow channel 202 through an electric control valve 204, and the two discharge holes 203 are connected to the outer side of the lower shell 5. The electric control valve 204 is electrically connected to the controller 15.

[0038] The backflushing unclogging mechanism can flush out the solid matter inside the blocked flow hole, thereby unclogging the blocked flow hole and restoring its smoothness. There is no need to manually disassemble and clean the level meter, which greatly shortens the cleaning time and reduces the impact on production and use.

[0039] Furthermore, a gas filling pipe 205 penetrating the partition plate 9 is inserted into the upper end of the gas storage chamber 201, and a one-way valve 206 is provided inside the gas filling pipe 205;

[0040] Gas, such as easily compressed nitrogen and helium, can be added to the gas storage chamber 201 through the gas filling pipe 205 , and the one-way valve 206 ensures that the gas is sealed inside the gas storage chamber 201 .

[0041] Furthermore, a fixing rod 208 (such as Figure 7 As shown), the outer sides of the two fixed rods 208 are rotatably connected with the non-return cover plates 207, and the two non-return cover plates 207 are elastically connected to the two fixed rods 208 respectively through torsion springs 209;

[0042] The solid matter is impacted by the gas, pushing the non-return cover 207 to flip outward and can be discharged into the liquid in the tank. The torsion spring 209 can apply a certain torsional torque to the non-return cover 207. When there is no pressure impact inside the discharge hole 203, the non-return cover 207 can be tightly attached to the end of the discharge hole 203 to prevent the external solid matter from flowing back to the inside of the discharge hole 203.

[0043] Further, the sensing mechanism includes a guide groove 301 provided on one side of the second flow hole 13, a flow hole inner shell 302 slidably inserted inside the second flow hole 13, and a trigger switch 304 installed at one end of the inner side of the guide groove 301. A slider 303 slidably connected to the inner side of the guide groove 301 is fixed on one side of the flow hole inner shell 302. One end of the slider 303 is elastically connected to the inner side of the guide groove 301 through a return spring 305. The trigger switch 304 is electrically connected to the controller 15.

[0044] When the inside of the flow hole is blocked by solid objects, the sensing mechanism can be triggered, and the sensing mechanism sends a signal to the controller 15, so that the synchronous reversing mechanism and the recoil dredging mechanism can be quickly controlled to work, and the blocked flow hole can be quickly dredged, thereby improving the dredging efficiency and avoiding long-term blockage of the flow hole, which affects the normal measurement of the liquid level by the liquid level meter.

[0045] Further, the lower ends of the two main channels 7 are slidably inserted with telescopic cylinders 401, and one side of the lower ends of the two main channels 7 is provided with a push block guide groove 404, and one end of the inner side of the two push block guide grooves 404 is installed with an electromagnet 406, and the two electromagnets 406 are electrically connected to the controller 15, and the lower end side walls of the two telescopic cylinders 401 are provided with a plurality of liquid inlet holes 403, and the upper ends of the two telescopic cylinders 401 are elastically connected to the inner sides of the two main channels 7 through telescopic cylinder springs 402, and one side of the lower ends of the two telescopic cylinders 401 is fixed with a push block 405 slidably connected to the inner side of the push block guide groove 404;

[0046] When unblocking the blocked second flow hole 13 or the first flow hole 12, the controller 15 controls the electric telescopic rod 104 to start and controls the two electromagnets 406 to energize to generate electromagnetic attraction on the two push blocks 405, thereby attracting the two telescopic cylinders 401 to move toward the inside of the main flow channel 7 until the liquid inlet holes 403 at the lower ends of the two telescopic cylinders 401 move to the inside of the main flow channel 7. At this time, the liquid inlet holes 403 can be blocked to prevent external solid objects from continuing to flow into the inside of the main flow channel 7 through the liquid inlet holes 403 during unblocking, and to prevent solid objects from continuously entering the blocked flow holes, thereby facilitating the rapid flushing of solid objects in the blocked flow holes. When the synchronous reversing mechanism drives the two rotating columns 11 to rotate 90°, that is, when the unblocked flow holes rotate to be connected with the main flow channel 7, the electric telescopic rod 104 stops working, and the controller 15 simultaneously controls the electromagnet 406 to be powered off, and the telescopic cylinder 401 is reset under the elastic force of the telescopic cylinder spring 402, so that the multiple liquid inlet holes 403 are connected to the outside again.

[0047] Furthermore, the upper shell 2 and the lower shell 5 are detachably connected via threads;

[0048] The upper shell 2 and the lower shell 5 can be separated to facilitate cleaning and replacement of internal components.

[0049] Working principle: When in use, the upper shell 2 and the lower shell 5 and their inner parts are put into the tank body filled with liquid as a whole. The liquid in the tank body enters the inner side of the upper shell 2 through two main channels 7 and two extension tubes 8, and contacts with the lower sensing end of the pressure sensor 3. As the liquid height increases, the pressure of the liquid on the pressure sensor 3 increases. The pressure sensor 3 transmits the pressure data to the signal processor 1 through the cable 4. The signal processor 1 processes the data and converts it into liquid level data and displays it, so that the staff can observe the liquid level inside the tank body from the outside.

[0050] The liquid enters through the liquid inlet hole 403 at the lower end of the two telescopic cylinders 401, then enters the inner side of the main flow channel 7 through the telescopic cylinders 401, and then enters the main flow channel 7 and the extension tube 8 through the first flow hole 12 or the second flow hole 13 inside the two rotating columns 11. If the solid matter in the liquid is blocked in the first flow hole 12 or the second flow hole 13 in the two rotating columns 11 at the same time, the pressure of the liquid in the tank body cannot be transmitted to the liquid inside the upper shell 2, thereby causing the pressure of the liquid inside the upper shell 2 to be too low, thereby affecting the accuracy of liquid level detection. At this time, by rotating the two rotating columns 11, the unblocked flow holes in the two rotating columns 11 are rotated to be connected with the main flow channel 7, so that the pressure of the liquid can be transmitted to the inner side of the upper shell 2 again. In addition, by setting two rotating columns 11, when the first flow hole 12 or the second flow hole 13 in one of the rotating columns 11 is blocked, the liquid can transmit the pressure to the liquid inside the upper shell 2 through the first flow hole 12 or the second flow hole 13 in the other rotating column 11, thereby effectively reducing the probability of blockage.

[0051] When the inside of the first flow hole 12 or the second flow hole 13 in the rotating column 11 is blocked by solid objects, the solid objects gather on the inside of the flow hole inner shell 302 of the sensing mechanism. At this time, the liquid pressure on the end of the flow hole inner shell 302 and the solid objects blocked inside it close to the telescopic cylinder 401 is greater than the liquid pressure on the end close to the main flow channel 7. Therefore, the flow hole inner shell 302 will drive the slider 303 to move upward. The upward movement of the slider 303 compresses the return spring 305 until the slider 303 contacts the trigger switch 304, triggering the trigger switch 304. When the trigger switches 304 in the two rotating columns 11 are triggered, it means that the first flow holes 12 or the second flow holes 13 in the two rotating columns 11 are blocked. After the two trigger switches 304 are triggered, they send signals to the controller 15. The controller 15 After receiving the signals from the two trigger switches 304, the telescopic end of the electric telescopic rod 104 of the synchronous reversing mechanism is controlled to retract to the limit, driving the lifting rod 105 to move downward a fixed distance, and the lifting rod 105 drives the two pin shafts 106 to move downward. Through the sliding cooperation between the two pin shafts 106 and the two opening grooves 103, the two turntables 102 can be driven to rotate 90° in the opposite direction. The two turntables 102 drive the two rotating columns 11 to rotate 90° in the opposite direction through the two extension shafts 101, so that the two blocked second flow holes 13 are rotated from a vertical angle to a horizontal angle, and the two unblocked first flow holes 12 are rotated from a horizontal angle to a vertical angle. At this time, the two first flow holes 12 are connected with the two main flow channels 7, and the two second flow holes 13 are connected with the two discharge holes 203 and the middle flow channel 202. Figure 6 state, thereby ensuring that the liquid pressure in the tank can be normally transmitted to the inner side of the upper shell 2 through the two unblocked first flow holes 12, thereby acting on the sensing end of the pressure sensor 3 to ensure the normal detection function of the liquid level meter;

[0052] Before unblocking the blocked second flow hole 13 or the first flow hole 12, the controller 15 controls the two electromagnets 406 to be energized to generate electromagnetic attraction on the two push blocks 405, thereby attracting the two telescopic cylinders 401 to move toward the inside of the main flow channel 7, until the liquid inlet holes 403 at the lower ends of the two telescopic cylinders 401 move to the inside of the main flow channel 7, at which time the liquid inlet holes 403 can be blocked to prevent external solid matter from continuing to flow into the inside of the main flow channel 7 through the liquid inlet holes 403 during unblocking, and to prevent solid matter from continuously entering the blocked flow hole, thereby facilitating the rapid flushing of solid matter in the blocked flow hole. When the synchronous reversing mechanism drives the two rotating columns 11 to rotate 90°, that is, when the unblocked flow hole rotates to be connected with the main flow channel 7, the controller 15 controls the electromagnet 406 to be de-energized again, and the telescopic cylinder 401 is reset under the elastic force of the telescopic cylinder spring 402, so that the multiple liquid inlet holes 403 are connected with the outside again.

[0053] When the blocked second flow hole 13 rotates to a horizontal angle, the controller 15 controls the electric control valve 204 of the recoil dredging mechanism to open, so that the high-pressure gas stored in the gas storage chamber 201 is sprayed to the inner side of the middle flow channel 202, and then sprayed to the inner sides of the two second flow holes 13 through the two ends of the middle flow channel 202, so that the solid objects blocked inside the two second flow holes 13 are flushed to the inner sides of the discharge holes 203 at the corresponding positions, so that the blocked inner sides of the second flow holes 13 can be dredged and restored to be unobstructed. The solid objects are impacted by the gas, pushing the non-return cover plate 207 to flip outward, and can be discharged into the liquid in the tank body. The torsion spring 209 can apply a certain torsional torque to the non-return cover plate 207. When there is no pressure impact inside the discharge hole 203, the non-return cover plate 207 can be tightly attached to the end of the discharge hole 203 to prevent the external solid objects from flowing back to the inner side of the discharge hole 203.

[0054] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A liquid level meter with an anti-blocking separation mechanism, comprising a signal processor (1) and a pressure sensor (3), wherein an upper shell (2) is arranged on the outer side of the pressure sensor (3), and the pressure sensor (3) and the signal processor (1) are electrically connected via a cable (4), characterized in that: Also includes: A lower shell (5) connected to the lower end of the upper shell (2), a partition plate (9) and a vertical plate (6) being fixed to the upper and lower ends of the inner side of the lower shell (5), two main flow channels (7) being provided on both sides of the inner side of the vertical plate (6), the upper ends of the two main flow channels (7) being connected to extension tubes (8) communicating with the inner side of the upper shell (2), a cylindrical cavity (10) being provided inside the vertical plate (6) at the lower ends of the two main flow channels (7), a rotating column (11) being rotatably connected to the inner sides of the two cylindrical cavities (10), and a first flow hole (12) and a second flow hole (13) being provided inside the two rotating columns (11); A synchronous reversing mechanism is provided between the two rotating columns (11); A recoil dredging mechanism is also provided inside the vertical plate (6); Sensing mechanisms are provided inside the first flow hole (12) and the second flow hole (13); The synchronous reversing mechanism comprises two extension shafts (101) fixed at one end of the two rotating columns (11) and extending to the outside of the vertical plate (6), an electric telescopic rod (104) installed at the lower end of the inner side of the lower shell (5), and a controller (15) installed on the outer side of the vertical plate (6); a rotating disk (102) is fixed at one end of the two extension shafts (101); an opening groove (103) is opened on one side of the two rotating disks (102); a lifting rod (105) is fixed at the telescopic end of the electric telescopic rod (104); two pins (106) are rotatably connected at both ends of the lifting rod (105); the two pins (106) are respectively movably connected to the inner sides of the two opening grooves (103); the two opening grooves (103) are symmetrically arranged; and the electric telescopic rod (104) is electrically connected to the controller (15); The first flow hole (12) and the second flow hole (13) located inside the same rotating column (11) are arranged to cross each other at 90 degrees, and the first flow hole (12) and the second flow hole (13) are located in two mutually parallel planes and do not intersect; The recoil dredging mechanism comprises an air storage chamber (201) opened inside the vertical plate (6) and located between the two main flow channels (7), an intermediate flow channel (202) opened inside the vertical plate (6) and located below the air storage chamber (201), and two discharge holes (203) opened on both sides of the vertical plate (6) and aligned with the intermediate flow channel (202), the lower end of the air storage chamber (201) is connected to the inner side of the intermediate flow channel (202) through an electric control valve (204), the two discharge holes (203) are connected to the outer side of the lower shell (5), and the electric control valve (204) is electrically connected to the controller (15).

2. The liquid level gauge with anti-blocking separation mechanism according to claim 1, characterized in that: An air filling pipe (205) penetrating the partition plate (9) is inserted into the upper end of the air storage chamber (201), and a one-way valve (206) is arranged on the inner side of the air filling pipe (205).

3. The liquid level gauge with anti-blocking separation mechanism according to claim 1, characterized in that: A fixing rod (208) is fixed on one side of the two discharge holes (203), and a non-return cover plate (207) is rotatably connected to the outer sides of the two fixing rods (208). The two non-return cover plates (207) are elastically connected to the two fixing rods (208) respectively via a torsion spring (209).

4. The liquid level gauge with anti-blocking separation mechanism according to claim 1, characterized in that: The sensing mechanism comprises a guide groove (301) provided on one side of the second flow hole (13), a flow hole inner shell (302) slidably inserted into the inner side of the second flow hole (13), and a trigger switch (304) installed at one end of the inner side of the guide groove (301); a slider (303) slidably connected to the inner side of the guide groove (301) is fixed on one side of the flow hole inner shell (302); one end of the slider (303) is elastically connected to the inner side of the guide groove (301) via a return spring (305); and the trigger switch (304) is electrically connected to the controller (15).

5. The liquid level gauge with anti-blocking separation mechanism according to claim 1, characterized in that: A telescopic cylinder (401) is slidably inserted at the lower end of the two main channels (7), and a push block guide groove (404) is provided on one side of the lower end of the two main channels (7). An electromagnet (406) is installed on one end of the inner side of the two push block guide grooves (404), and the two electromagnets (406) are electrically connected to the controller (15). A plurality of liquid inlet holes (403) are provided on the side walls of the lower ends of the two telescopic cylinders (401), and the upper ends of the two telescopic cylinders (401) are elastically connected to the inner sides of the two main channels (7) through telescopic cylinder springs (402), and a push block (405) slidably connected to the inner side of the push block guide groove (404) is fixed on one side of the lower end of the two telescopic cylinders (401).

6. The liquid level gauge with anti-blocking separation mechanism according to claim 1, characterized in that: The upper shell (2) and the lower shell (5) are detachably connected via threads.

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