Liquid level meter of liquid storage tank

Abstract

The invention relates to the technical field of storage tank liquid level meters, in particular to a liquid storage tank liquid level meter which comprises a magnetic turning plate liquid level meter used in cooperation with a tank body, the bottom of the tank body is fixedly connected with a water outlet, the top of the tank body is fixedly connected with a water inlet, the outer side of the tank body is further fixedly connected with two sets of butt-joint pipe openings, and the magnetic turning plate liquid level meter is fixedly connected to the butt-joint pipe openings. The arc-shaped baffle is fixedly connected to the bottom of the tank body, the two communicating pipes are fixedly connected to the magnetic turning plate liquid level meter, the filtering assemblies are rotationally connected to the communicating pipes, the two driving assemblies are fixedly connected to the upper end and the lower end of the tank body, the dredging assemblies are fixedly connected to the driving assemblies, and the removing assemblies are fixedly connected to the dredging assemblies. By arranging the dredging assembly and the driving assembly, power generated when liquid enters or is discharged out of the tank body can be used for sweeping the filter cartridge, and swept solid particles are pushed to the middle position of the tank body, so that the solid particles are prevented from being accumulated at the filter cartridge, and the metering accuracy is prevented from being influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of storage tank liquid level gauges, and particularly to a liquid storage tank liquid level gauge. Background Art

[0002] The magnetic flap level gauge has accurate scale, is economical and practical, and has wide applications in industries such as electric power, petroleum, chemical industry, food, environmental protection, and ships. The magnetic flap level gauge mainly realizes the real-time measurement and display of the liquid level based on the principles of communicating vessels and magnetic coupling. When the measured liquid level in the container rises or falls, the magnetic float in the float chamber also rises or falls accordingly. The permanent magnet in the float chamber drives the magnetic flap outside the float chamber to flip 180° through magnetic coupling. When it rises, it is red, and when it falls, it is white. The actual position of the liquid level is at the red-white boundary.

[0003] Due to the high precision, simple structure, and convenient maintenance of the magnetic flap level gauge, it is the most widely used in various fields. For example, when measuring the storage tank of fruit juice containing particles, in order to visually and accurately observe the remaining amount of fruit juice liquid in the storage tank, a magnetic flap level gauge is basically used for measurement. However, since the distance between the magnetic float of the magnetic flap level gauge and the measuring cylinder is extremely small, when solid particles enter the measuring cylinder, it is very easy to block between the measuring cylinder and the magnetic float, resulting in the magnetic float being stuck, which affects the accuracy of measurement and even makes the magnetic float lose its function. The traditional solution is to add a filter screen between the magnetic flap level gauge and the connecting pipe of the storage tank to intercept solid particles. However, the traditional liquid level gauge with a filter screen installed does not have the function of self-cleaning the filter screen. Therefore, after a long time of work, it is extremely easy to cause blockage between the liquid level gauge and the storage tank by solid particles, which affects the passing rate of the liquid, causes delay or error in the measurement of the liquid level gauge, and the cleaning process of the blocked liquid level gauge during work is extremely troublesome. Therefore, a liquid level gauge that can self-clean solid particles at the connection between the storage tank and the liquid level gauge is needed to solve the above problems.

[0004] Therefore, a liquid storage tank liquid level gauge is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a liquid storage tank level gauge, which solves the problem that when a traditional magnetic flap level gauge is used to measure a juice liquid storage tank containing solid particles, solid particles easily enter the level gauge, causing the magnetic float to be blocked and move poorly, or solid particles are blocked at the connection between the measuring filter cartridge and the storage tank, resulting in poor liquid circulation, causing delays or errors in the measurement of the level gauge. The present invention provides a filter cartridge at the connecting pipe of the level gauge, and can use the liquid flow force of the juice liquid when entering or discharging the storage tank to clean the filter cartridge, thereby preventing solid particles from entering the magnetic flap level gauge, and sweeping the filter cartridge when the liquid level changes, preventing solid particles from accumulating at the filter cartridge and causing measurement errors of the level gauge, and preventing the liquid from generating vortices when flowing out and affecting the stability of the magnetic float in the level gauge.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A liquid storage tank level gauge comprises a magnetic flap level gauge used in conjunction with a tank body, wherein a drain outlet is fixedly connected to the bottom of the tank body, a water inlet is fixedly connected to the top of the tank body, and two groups of butt-joint pipe ports are fixedly connected to the outer side of the tank body, the magnetic flap level gauge is fixedly connected to the butt-joint pipe ports, and further comprises an arc-shaped baffle fixedly connected to the bottom of the tank body, two groups of connecting pipes fixedly connected to the magnetic flap level gauge, a filter assembly rotatably connected to the connecting pipes, two groups of driving assemblies fixedly connected to the upper and lower ends of the tank body, a dredging assembly fixedly connected to the driving assembly, and a rejecting assembly fixedly connected to the dredging assembly; the driving assembly is provided with two groups, which are respectively located at the water inlet and the drain outlet and rotate synchronously; the arc-shaped baffles are symmetrically arranged on both sides of the dredging assembly; the dredging assembly is sleeved on the outer side of the filtering assembly, and when liquid enters or is discharged from the storage tank, the liquid will drive the driving assembly to drive the dredging assembly to rotate, and the dredging assembly drives the filtering assembly to rotate synchronously in the opposite direction while rotating.

[0008] Preferably, the curvature of the arc-shaped baffle is consistent with the curvature of the butt-joint pipe port, and the top of the arc-shaped baffle is flush with the top of the recessed part at the bottom of the tank body. The arc-shaped baffle can prevent the liquid from flowing out and generating vortices when the liquid level is low.

[0009] Preferably, the filter assembly includes a bevel gear 1 rotatably connected to the end of the connecting pipe, a support rod fixedly connected to the connecting pipe, a bevel gear 2 rotatably connected to the support rod, and a filter cartridge fixedly connected to the bevel gear 1; the bevel gear 1 is meshed with the bevel gear 2, the filter cartridge can filter solid particles outside the magnetic flap level gauge, and the filter cartridge can use centrifugal force to throw off particles on the surface of the filter cartridge when it rotates.

[0010] Preferably, the driving assembly includes two groups of brackets fixedly connected to the upper and lower ends of the tank body, bearings fixedly connected to the brackets, a rotating column rotatably connected inside the bearings, an annular groove fixedly connected to the outer side of the rotating column, and an impeller fixedly connected to the outer side of the annular groove; a transmission belt is also connected between the annular grooves on the upper and lower two groups of driving assemblies. When the liquid flows out or in, it can pass through the impeller to drive the impeller to rotate.

[0011] Preferably, the axis of the impeller is located at the edge of the water inlet and the drain outlet, and the impeller rotates coaxially with the rotating column, and the two impellers rotate synchronously through the transmission belt.

[0012] Preferably, the dredging assembly includes a fixed frame fixedly connected to the rotating column, a spiral blade fixedly connected to the fixed frame, filter holes opened on the spiral blade, and a bevel gear three fixedly connected to the fixed frame; the bevel gear three meshes with the bevel gear two; when the impeller rotates, it will drive the spiral blade to rotate, and the rotating spiral blade can push the solid impurities towards the middle of the tank body.

[0013] Preferably, a sleeve is also fixedly connected to the rotating column, a sliding column slidably connected inside the sleeve, an elastic member one installed between the sleeve and the sliding column, and a scraping plate fixedly connected to the sliding column; the length of the scraping plate is equal to the diameter of the filter cylinder, and the scraping plate can also clean the side of the filter cylinder.

[0014] Preferably, the removing assembly includes a fixed column fixedly connected to the inner side of the spiral blade, a dispersing column hinged to the fixed column, a brush fixedly connected to the dispersing column, and an elastic member two fixedly connected between the dispersing column and the fixed column; the hinged part of the dispersing column and the fixed column is located in the middle of the dispersing column, and multiple groups of dispersing columns are arranged in an annular array around the fixed column; the elastic member two is connected to the dispersing column near the top position. When the spiral blade rotates, the brush will clean the outer surface of the filter cylinder.

[0015] Preferably, a pushing member is also arranged on the fixed column; the pushing member includes a fork rod fixedly connected to the bottom of the fixed column, a trigger rod rotatably connected to the fork rod, a sliding cavity opened in the fixed column, a pushing column slidably connected in the sliding cavity, a steel wire rope fixedly connected between the pushing column and the trigger rod, and a push plate slidably connected to the bottom of the fixed column, an inclined pushing surface arranged on the push plate; the push plate penetrates through the fixed column and extends into the sliding cavity, and the inclined pushing surface on the push plate abuts against the pushing column. When harder solid particles adhere to the filter cylinder, the brush will be resisted and open to remove the impurities.

[0016] Preferably, the extending length of the bottom of the trigger rod is less than the extending length of the bottom of the brush, and the trigger rod does not directly contact the filter cylinder.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. When the magnetic flip - plate level gauge of the present invention measures the juice liquid containing solid particles, by setting the filter cylinder, solid particles can be prevented from entering the inside of the magnetic flip - plate level gauge. And by setting the dredging component and the driving component, the power generated when the liquid enters or exits the tank body can be used to clean the filter cylinder, and the solid particles after cleaning are pushed towards the middle position of the tank body, preventing the solid particles from accumulating at the filter cylinder and affecting the smoothness of the liquid flow between the magnetic flip - plate level gauge and the tank body, thereby affecting the measurement accuracy.

[0019] 2. When cleaning the surface of the filter cylinder, when encountering hard solid particles that are difficult to clean, the solid particles will generate resistance to the trigger rod, and thus the trigger rod will act on the brush body to make it tilt and open, so that the solid particles can be removed, preventing hard solid particles from being difficult to clean and accumulating at the filter cylinder, causing potential hazards.

[0020] 3. By setting the baffle plate, when the spiral blade pushes the solid particles towards the middle of the tank body, it can prevent the solid particles deposited at the bottom of the tank body from flowing towards the filter cylinder under the squeezing force of the water body, thus affecting the working efficiency of the dredging component, and can also prevent the problem that when the liquid level is low, the liquid outflow generates a vortex with the bottom of the tank body, causing unstable liquid inflow and outflow in the magnetic flip - plate level gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall external three - dimensional structure schematic diagram of the present invention;

[0022] Figure 2 is the sectional structure schematic diagram of the tank body of the present invention;

[0023] Figure 3 is the structure schematic diagram of the water inlet of the present invention;

[0024] Figure 4 is the structure schematic diagram of the water outlet of the present invention;

[0025] Figure 5 is the three - dimensional structure schematic diagram of the filtering component of the present invention;

[0026] Figure 6 is the three - dimensional structure schematic diagram of the driving component of the present invention;

[0027] Figure 7 is the position schematic diagram of the impeller and the drain port of the present invention;

[0028] Figure 8 is the structure schematic diagram of the scraper of the present invention;

[0029] Figure 9 is the three - dimensional structure schematic diagram of the dredging component of the present invention;

[0030] Figure 10 Schematic three-dimensional structure diagram of the rejection component of the present invention;

[0031] Figure 11 Internal display diagram of the rejection component of the present invention;

[0032] Figure 12 Schematic three-dimensional diagram of the pushing member of the present invention.

[0033] In the figure: 1, tank body; 11, drain port; 12, water inlet; 13, docking pipe orifice; 2, magnetic flap level gauge; 3, arc-shaped baffle; 4, communicating pipe; 5, filtering component; 51, bevel gear one; 52, support rod; 53, bevel gear two; 54, filter cartridge; 6, driving component; 61, bracket; 62, bearing; 63, rotating column; 631, pipe sleeve; 632, sliding column; 633, elastic member one; 634, scraper; 64, annular groove; 65, impeller; 66, transmission belt; 7, dredging component; 71, fixing frame; 72, spiral blade; 73, filter hole; 74, bevel gear three; 8, rejection component; 81, fixing column; 82, dispersing column; 83, brush; 84, elastic member two; 9, pushing member; 91, fork rod; 92, trigger rod; 93, sliding cavity; 94, pushing column; 95, steel wire rope; 96, push plate; 97, inclined pushing surface. Specific implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1 to 12 , the present invention provides a liquid storage tank level gauge, and the technical solution is as follows:

[0036] As an implementation manner of the present invention, refer to Figures 1 - 3, A liquid storage tank liquid level gauge, including a magnetic flap liquid level gauge 2 used in conjunction with the tank body 1. A drain port 11 is fixedly connected to the bottom of the tank body 1, a water inlet 12 is fixedly connected to the top of the tank body 1, and two groups of docking pipe orifices 13 are also fixedly connected to the outside of the tank body 1. The magnetic flap liquid level gauge 2 is fixedly connected to the docking pipe orifices 13. It also includes an arc-shaped baffle 3 fixedly connected to the bottom of the tank body 1, two groups of communicating pipes 4 fixedly connected to the magnetic flap liquid level gauge 2, a filtering component 5 rotatably connected to the communicating pipes 4, two groups of driving components 6 fixedly connected to the upper and lower ends of the tank body 1, a dredging component 7 fixedly connected to the driving components 6, and a removing component 8 fixedly connected to the dredging component 7; The driving components 6 are provided in two groups respectively located at the water inlet 12 and the drain port 11 and rotate synchronously; The arc-shaped baffle 3 is symmetrically arranged on both sides of the dredging component 7; The dredging component 7 is sleeved on the outside of the filtering component 5;

[0037] When the liquid enters or is discharged from the storage tank, the liquid will drive the driving component 6 to drive the dredging component 7 to rotate. While the dredging component 7 rotates, it drives the filtering component 5 to rotate synchronously in the opposite direction, so as to realize that the filtering component 5 can prevent solid particles from entering the magnetic flap liquid level gauge 2, and at the same time, it can clean the filtering component 5 and push the solid particles to prevent them from accumulating at the filtering component 5. During the cleaning work, when there are harder solid particles attached to the filtering component 5, the removing component 8 will be triggered to remove the solid particles.

[0038] As an implementation mode of the present invention, refer to Figure 2 and Figure 4 , the radian of the arc-shaped baffle 3 is the same as that of the docking pipe orifice 13, and the top of the arc-shaped baffle 3 is flush with the top of the sunken part at the bottom of the tank body 1. The arc-shaped baffle 3 can prevent the liquid level in the magnetic flap liquid level gauge 2 from being unstable due to the vortex generated when the liquid level is low, resulting in the up and down shaking of the magnetic float in the magnetic flap liquid level gauge 2 and affecting the measurement accuracy.

[0039] As an implementation mode of the present invention, refer to Figure 5 , the filtering component 5 includes a bevel gear one 51 rotatably connected to the end of the communicating pipe 4, a support rod 52 fixedly connected to the communicating pipe 4, a bevel gear two 53 rotatably connected to the support rod 52, and a filter cylinder 54 fixedly connected to the bevel gear one 51; Among them, the bevel gear one 51 meshes with the bevel gear two 53. The filter cylinder 54 can filter solid particles outside the magnetic flap liquid level gauge 2, and the filter cylinder 54 is rotatably connected to the communicating pipe 4 through the bevel gear two 53. When the filter cylinder 54 rotates, it can use centrifugal force to shake off the particles on the surface of the filter cylinder 54, thereby further promoting the filtering effect of solid particles.

[0040] As an implementation mode of the present invention, refer to Figure 6, the driving assembly 6 includes two groups of brackets 61 fixedly connected to the upper and lower ends of the tank body 1, bearings 62 fixedly connected to the brackets 61, a rotating column 63 rotatably connected inside the bearings 62, a ring groove 64 fixedly connected to the outside of the rotating column 63, and an impeller 65 fixedly connected to the outside of the ring groove 64; a transmission belt 66 is also connected between the ring grooves 64 on the upper and lower two groups of driving assemblies 6. When the liquid flows in from the water inlet 12 or flows out from the drain port 11, it will pass through the impeller 65, thereby driving the impeller 65 to rotate.

[0041] As an implementation manner of the present invention, referring to Figure 7 , the axis of the impeller 65 is located at the edges of the water inlet 12 and the drain port 11, and the impeller 65 rotates coaxially with the rotating column 63. When there is liquid entering or discharging from the tank body 1, the two impellers 65 achieve synchronous rotation through the transmission belt 66.

[0042] As an implementation manner of the present invention, referring to Figure 9 , the dredging assembly 7 includes a fixed frame 71 fixedly connected to the rotating column 63, a spiral blade 72 fixedly connected to the fixed frame 71, filter holes 73 opened on the spiral blade 72, and a bevel gear three 74 fixedly connected to the fixed frame 71; the bevel gear three 74 meshes with the bevel gear two 53. When the impeller 65 rotates, it will drive the spiral blade 72 to rotate. At the same time, since the bevel gear one 51, the bevel gear two 53, and the bevel gear three 74 mesh with each other, when the spiral blade 72 rotates, it will drive the filter cylinder 54 to rotate in the reverse direction. The rotating spiral blade 72 can push the solid impurities at the filter cylinder 54 towards the middle of the tank body 1, thereby preventing the solid particles from accumulating at the filter cylinder 54 and affecting the liquid flow. And the filter holes 73 opened on the spiral blade 72 can reduce the drive of the water flow.

[0043] As an implementation manner of the present invention, referring to Figure 8 , a sleeve 631 is also fixedly connected to the rotating column 63, a sliding column 632 slidably connected inside the sleeve 631, an elastic member one 633 installed between the sleeve 631 and the sliding column 632, and a scraper 634 fixedly connected to the sliding column 632; the length of the scraper 634 is equal to the diameter of the filter cylinder 54. The elastic member one 633 provides a thrust force for the scraper 634 towards the filter cylinder 54, so that the scraper 634 always fits with the filter cylinder 54. The scraper 634 rotates with the rotating column 63 and cleans the side of the filter cylinder 54.

[0044] As an implementation manner of the present invention, referring to Figure 10 and Figure 11, the removing component 8 includes a fixed column 81 fixedly connected to the inner side of the spiral blade 72, a dispersing column 82 hinged to the fixed column 81, a brush 83 fixedly connected to the dispersing column 82, and an elastic member II 84 fixedly connected between the dispersing column 82 and the fixed column 81; the hinge joint between the dispersing column 82 and the fixed column 81 is located in the middle of the dispersing column 82, the dispersing column 82 can swing along the hinge axis with respect to the fixed column 81, and multiple groups of dispersing columns 82 are provided and are arranged in a circular array around the fixed column 81; the elastic member II 84 is connected to the dispersing column 82 near the top. Since the removing component 8 is fixedly connected to the inner side of the spiral blade 72 (i.e., the side facing the outer surface of the filter cartridge 54), when the spiral blade 72 rotates, the brush 83 will clean the outer surface of the filter cartridge 54.

[0045] As an embodiment of the present invention, referring to Figure 12 , a pushing member 9 is further provided on the fixed column 81; the pushing member 9 includes a fork rod 91 fixedly connected to the bottom of the fixed column 81, a trigger rod 92 rotatably connected to the fork rod 91, a sliding cavity 93 opened in the fixed column 81, a pushing column 94 slidably connected in the sliding cavity 93, a steel wire rope 95 fixedly connected between the pushing column 94 and the trigger rod 92, and a push plate 96 slidably connected to the bottom of the fixed column 81, and an inclined pushing surface 97 provided on the push plate 96; the push plate 96 penetrates through the fixed column 81 and extends into the sliding cavity 93, and the inclined pushing surface 97 on the push plate 96 abuts against the pushing column 94. In the rotating working state of the spiral blade 72, the brush 83 will clean the outer surface of the filter cartridge 54 following the rotation of the spiral blade 72. When cleaning encounters harder solid particles attached to the filter cartridge 54, the trigger rod 92 will be subjected to resistance and deflect along the rotation connection with the fork rod 91, thereby driving the pushing column 94 to move downward in the sliding cavity 93 through the steel wire rope 95. During the movement, the pushing column 94 will squeeze and push the push plate 96 to slide outward and open through the inclined pushing surface 97 of the push plate 96, so that the push plate 96 will push the dispersing column 82 and the brush 83 to perform an opening action, and thus the brush 83 in the opening action can remove solid impurities.

[0046] As an embodiment of the present invention, referring to Figure 11 , the length of the bottom extension of the trigger rod 92 is less than the length of the bottom extension of the brush 83, and the trigger rod 92 does not directly contact the filter cartridge 54. When encountering solid particles protruding on the surface of the filter cartridge 54, the trigger rod 92 will be subjected to resistance and deflect.

[0047] Working principle:

[0048] When the liquid containing solid particles flows into or out of the tank body 1, the liquid will drive the impeller 65 to rotate through the impeller 65. Since the upper and lower two groups of impellers 65 are connected by a transmission belt 66, both groups of impellers 65 will rotate simultaneously whether the liquid in the tank body 1 increases or decreases;

[0049] Reference Figure 9 When the impeller 65 rotates, the impeller 65 will drive the rotating column 63, the spiral blade 72 and the bevel gear three 74 to rotate simultaneously. Since the bevel gear one 51, the bevel gear two 53 and the bevel gear three 74 are meshed with each other, when the spiral blade 72 rotates, the filter cartridge 54 will be driven to rotate in the opposite direction through the reverse drive of the bevel gear two 53. The rotating spiral blade 72 can push the solid impurities at the filter cartridge 54 toward the middle of the tank body 1, which can prevent the solid particles from accumulating at the filter cartridge 54 and affecting the circulation of the liquid. The scraper 634 will also rotate with the rotating column 63 and clean the side of the filter cartridge 54. At the same time, the reversely rotating filter cartridge 54 can throw off the particles on the surface through the action of centrifugal force.

[0050] Reference Figures 10 - 12 , since the rejection component 8 is fixedly connected to the inner side of the spiral blade 72 (i.e., the side facing the outer surface of the filter cartridge 54), the brush 83 will clean the outer surface of the filter cartridge 54 when the spiral blade 72 rotates, thereby realizing the effect of cleaning and pushing away the solid particles on the surface of the filter cartridge 54. When cleaning, when encountering harder solid particles attached to the filter cartridge 54, the trigger rod 92 will be deflected along the rotating connection with the fork rod 91 by resistance, thereby driving the push column 94 to move downward in the sliding cavity 93 through the wire rope 95. During the movement, the push column 94 will push the push plate 96 to slide outward and open through the inclined push surface 97 of the push plate 96. The opened push plate 96 will push the dispersion column 82 and the brush 83 to open, and the brush 83 in the opening action can remove the solid impurities;

[0051] Reference Figure 4 Due to the special setting of the arc baffle 3, the arc baffle 3 can prevent the liquid from flowing out and generating a vortex when the liquid level in the tank body 1 is low, resulting in unstable liquid level in the magnetic flap level gauge 2. The arc baffle 3 and the impeller 65 can cooperate with the movement state of rotating along the water flow to effectively prevent the generation of vortex, and the arc baffle 3 can prevent the solid particles from flowing directly from both sides of the filter cartridge 54 to the filter cartridge 54 and contacting the filter cartridge 54 when the spiral plate blades 72 push the solid particles on the outer surface of the filter cartridge 54.

[0052] Even though we have provided specific embodiments of the present invention, it should be clear to those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without violating the fundamental concept and purpose of the present invention. The scope of the present invention is not fixed, but is ultimately determined by the claims contained in the patent document and the equivalent technical solutions. In short, the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A liquid storage tank level gauge, comprising a magnetic flap level gauge (2) used in conjunction with a tank body (1), wherein a drain outlet (11) is fixedly connected to the bottom of the tank body (1), a water inlet (12) is fixedly connected to the top of the tank body (1), and two groups of butt joints (13) are fixedly connected to the outer side of the tank body (1), and the magnetic flap level gauge (2) is fixedly connected to the butt joints (13), characterized in that: The invention also comprises an arc-shaped baffle (3) fixedly connected to the bottom of the tank body (1), two groups of connecting pipes (4) fixedly connected to the magnetic flap level gauge (2), a filtering assembly (5) rotatably connected to the connecting pipe (4), two groups of driving assemblies (6) fixedly connected to the upper and lower ends of the tank body (1), a dredging assembly (7) fixedly connected to the driving assembly (6), and a rejecting assembly (8) fixedly connected to the dredging assembly (7); the driving assembly (6) is provided with two groups of dredging assemblies respectively located at the water inlet (12) and the water outlet (11) and rotating synchronously; the arc-shaped baffle (3) is symmetrically arranged on both sides of the dredging assembly (7); the dredging assembly (7) is sleeved on the outer side of the filtering assembly (5); the driving assembly (6) drives the dredging assembly (7) to rotate, and the dredging assembly (7) drives the filtering assembly (5) to rotate synchronously in the opposite direction.

2. A liquid storage tank level gauge according to claim 1, characterized in that: The curvature of the arc-shaped baffle plate (3) is consistent with the curvature of the butt-joint pipe opening (13), and the top of the arc-shaped baffle plate (3) is flush with the top of the concave portion at the bottom of the tank body (1).

3. A liquid storage tank level gauge according to claim 2, characterized in that: The filter assembly (5) comprises a bevel gear 1 (51) rotatably connected to the end of the connecting pipe (4), a support rod (52) fixedly connected to the connecting pipe (4), a bevel gear 2 (53) rotatably connected to the support rod (52), and a filter cartridge (54) fixedly connected to the bevel gear 1 (51); the bevel gear 1 (51) is meshed with the bevel gear 2 (53).

4. A liquid storage tank level gauge according to claim 3, characterized in that: The driving assembly (6) comprises two groups of brackets (61) fixedly connected to the upper and lower ends of the tank body (1), a bearing (62) fixedly connected to the bracket (61), a rotating column (63) rotatably connected to the bearing (62), an annular groove (64) fixedly connected to the outer side of the rotating column (63), and an impeller (65) fixedly connected to the outer side of the annular groove (64); a transmission belt (66) is also connected between the two groups of annular grooves (64) on the driving assembly (6).

5. A liquid storage tank level gauge according to claim 4, characterized in that: The axis of the impeller (65) is located at the edge of the water inlet (12) and the outlet (11), and the impeller (65) rotates coaxially with the rotating column (63), and the two groups of impellers (65) rotate synchronously through a transmission belt (66).

6. A liquid storage tank level gauge according to claim 5, characterized in that: The dredging component (7) comprises a fixing frame (71) fixedly connected to the rotating column (63), a spiral plate blade (72) fixedly connected to the fixing frame (71), a filter hole (73) provided on the spiral plate blade (72), and a bevel gear three (74) fixedly connected to the fixing frame (71); the bevel gear three (74) is meshed with the bevel gear two (53).

7. A liquid storage tank level gauge according to claim 6, characterized in that: The rotating column (63) is also fixedly connected to a pipe sleeve (631), a sliding column (632) slidably connected to the pipe sleeve (631), an elastic member (633) installed between the pipe sleeve (631) and the sliding column (632), and a scraper (634) fixedly connected to the sliding column (632); the length of the scraper (634) is equal to the diameter of the filter cartridge (54).

8. A liquid storage tank level gauge according to claim 7, characterized in that: The rejecting assembly (8) comprises a fixed column (81) fixedly connected to the inner side of the spiral blade (72), a dispersion column (82) hinged on the fixed column (81), a brush (83) fixedly connected to the dispersion column (82), and a second elastic member (84) fixedly connected between the dispersion column (82) and the fixed column (81); the hinge between the dispersion column (82) and the fixed column (81) is located in the middle of the dispersion column (82), and the dispersion column (82) is provided with a plurality of groups and arranged in a ring array around the fixed column (81); the second elastic member (84) is connected to the dispersion column (82) near the top end.

9. A liquid storage tank level gauge according to claim 8, characterized in that: The fixed column (81) is also provided with a pushing member (9); the pushing member (9) comprises a fork rod (91) fixedly connected to the bottom of the fixed column (81), a trigger rod (92) rotatably connected to the fork rod (91), a sliding cavity (93) opened in the fixed column (81), a pushing column (94) slidably connected in the sliding cavity (93), a wire rope (95) fixedly connected between the pushing column (94) and the trigger rod (92), and a push plate (96) slidably connected to the bottom of the fixed column (81), and an inclined push surface (97) provided on the push plate (96); the push plate (96) passes through the fixed column (81) and extends into the sliding cavity (93), and the inclined push surface (97) on the push plate (96) abuts against the pushing column (94).

10. A liquid storage tank level gauge according to claim 9, characterized in that: The length of the bottom extension of the trigger rod (92) is less than the length of the bottom extension of the brush (83), and the trigger rod (92) does not directly contact the filter cartridge (54).

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