Self-cleaning liquid level meter

Abstract

The embodiment of the invention provides a self-cleaning type liquid level meter. The self-cleaning type liquid level meter comprises a pipe body, a magnetic turning plate and a mounting pipe, wherein the magnetic turning plate is mounted on the outer surface of the pipe body in the axial direction of the pipe body; a magnetic floating ball is movably arranged in the pipe body, a rotatable blow-off pipe is mounted at the bottom of the pipe body, and a valve body is fixedly connected to the bottom of the blow-off pipe; and a driving motor is installed at the top of the pipe body, an output shaft of the driving motor is fixedly connected with a rotating disc, and brush plates are symmetrically arranged at the bottom of the rotating disc. According to the self-cleaning type liquid level meter, the phenomenon that the magnetic adsorption effect in the pipe body is affected due to impurity attachment can be avoided, the liquid level measurement error caused by impurities is reduced, the manual cleaning frequency is reduced, and convenience is brought to use of people.

Description

Technical Field

[0001] The embodiments disclosed herein belong to the field of liquid level gauge technology, specifically relating to a self-cleaning liquid level gauge. Background Technology

[0002] A water level gauge, also called a "liquid level gauge" or "liquid level gauge," is used in boilers. Because water in a boiler vaporizes at high temperatures for heating, significant water and steam losses occur, requiring continuous water replenishment to maintain a certain water level. If the water level is too low, the boiler risks explosion. To monitor the water level in the boiler at any time, water level gauges are installed, forming a communicating vessel with the boiler. Among these, the flapper level gauge is a commonly used tool for measuring boiler water levels. It operates based on the principles of buoyancy and magnetic coupling, using a permanent magnet inside the float to drive a magnetic flap for indication.

[0003] The shortcomings of existing technology: After a period of use, existing level gauges accumulate a large amount of impurities on their inner walls. This not only hinders the internal magnetic blocks from floating up and down, but also affects the attraction between the magnetic blocks and the magnetic flap, resulting in the magnetic flap not being able to be attracted and the level of the liquid not being observed correctly. Summary of the Invention

[0004] The embodiments disclosed herein are intended to at least address one of the technical problems existing in the prior art, and to provide a self-cleaning level gauge.

[0005] The embodiments of this disclosure provide a self-cleaning level gauge, including a tube body, a magnetic flap mounted axially on the outer surface of the tube body, and an installation pipe communicating with the tube body and for water inlet; a magnetic float ball is movably disposed inside the tube body, and a rotatable drain pipe is installed at the bottom of the tube body, with a valve body fixedly connected to the bottom of the drain pipe; A drive motor is installed at the top of the tube, and a turntable is fixedly connected to the output shaft of the drive motor. The turntable is rotatably connected to the inner wall of the tube. Brush plates are symmetrically arranged at the bottom of the turntable. The brush plates are rotatably connected to the inner wall of the tube along the circumference of the tube. The magnetic float is slidably connected to the brush plates along the axial direction of the tube. The drain pipe is equipped with a drain mechanism, which can discharge the impurities cleaned by the brush plate.

[0006] Optionally, the sewage discharge mechanism includes a fixed plate, a spiral pusher blade located inside the sewage discharge pipe, and a movable plate; the fixed plate is fixed to the bottom of the pipe body to separate the pipe body from the sewage discharge pipe; wherein, the fixed plate has at least one first through hole penetrating its thickness direction; The spiral pusher blade is located on the side of the sewage pipe away from the pipe body, and the movable plate is located between the fixed plate and the spiral pusher blade; The movable plate is fixedly connected to the inner wall of the sewage pipe along the circumference of the sewage pipe, and the movable plate has at least one second through hole penetrating its thickness direction; a rotating shaft is connected through the central area of ​​the movable plate, the top of the rotating shaft extends through the fixed plate and is connected to symmetrically arranged connecting rods, the first end of the connecting rod is connected to the rotating shaft, and the second end of the connecting rod is fixedly connected to the corresponding brush plate; The spiral pusher blade is fitted onto the bottom outer surface of the rotating shaft, and the spiral pusher blade is rotatably connected to the inner wall of the sewage pipe.

[0007] Optionally, the magnetic buoy is arranged in an elliptical structure, and the magnetic buoy is also slidably connected to the inner wall of the tube.

[0008] Optionally, the outer wall of the sewage pipe is fitted with an anti-slip ring, and the anti-slip ring is provided with anti-slip texture.

[0009] Optionally, the number of the first through holes and the number of the second through holes are the same and the hole diameter is the same.

[0010] Optionally, both the first through hole and the second through hole are arranged in a fan shape.

[0011] Optionally, the inner wall of the sewage pipe is provided with a raised ring, the outer wall of the pipe body is provided with a groove that matches the raised ring, and a sealing ring is provided inside the groove.

[0012] Optionally, the fixing plate is welded to the bottom of the tube body, and a wear-resistant layer is provided on the side of the fixing plate opposite to the spiral pusher blade.

[0013] The self-cleaning level gauge of this disclosure, through the coordinated use of a tube body, magnetic flap, mounting tube, magnetic float, drive motor, turntable, brush plate, drain pipe, and valve body, enables the drive motor to drive the turntable and brush plate to rotate, facilitating the brush plate to directly clean impurities from the inner wall of the tube. Simultaneously, thanks to the elliptical structure of the magnetic float, the brush plate rotation drives the magnetic float to rotate synchronously within the tube, without hindering the normal adsorption function of the magnetic float. This prevents impurities from affecting the magnetic adsorption effect inside the tube, reduces level measurement errors caused by impurities, lowers the frequency of manual cleaning, and brings convenience to users.

[0014] By using a fixed plate, a first through hole, a movable plate, a second through hole, a connecting rod, a rotating shaft, and a spiral pusher blade in conjunction, the brush plate is driven by a drive motor to rotate the rotating shaft and the spiral pusher blade. Impurities inside the pipe quickly enter the drain pipe through the first and second through holes, and are then accelerated into the valve body by the rotation of the spiral pusher blade, achieving efficient discharge of impurities. This reduces cleaning time and improves the efficiency of impurity discharge. Attached Figure Description

[0015] Figure 1 This is a front sectional view of a self-cleaning level gauge according to an embodiment of the present disclosure; Figure 2 for Figure 1 Enlarged view of the structure of section A; Figure 3 This is a sectional view of the bottom of the tube. Figure 4 This is a sectional view showing the structure of the sewage pipe. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1 like Figures 1 to 4 As shown, a self-cleaning level gauge includes a tube body 1, a magnetic flap 2 mounted axially on the outer surface of the tube body 1, and an installation pipe 3 connected to the tube body 1 and used for water inlet. A magnetic float 4 is movably disposed inside the tube body 1, and a rotatable drain pipe 9 is installed at the bottom of the tube body 1, with a valve body 10 fixedly connected to the bottom of the drain pipe 9.

[0018] A drive motor 6 is mounted on the top of the pipe body 1. The output shaft of the drive motor 6 is fixedly connected to a turntable 7, and the turntable 7 is rotatably connected to the inner wall of the pipe body 1. Brush plates 8 are symmetrically arranged at the bottom of the turntable 7. The brush plates 8 are rotatably connected to the inner wall of the pipe body 1 along its circumference. The magnetic float 4 is slidably connected to the brush plates 8 along the axial direction of the pipe body 1. A sewage discharge mechanism 5 is provided inside the sewage discharge pipe 9, through which impurities cleaned by the brush plates 8 can be discharged.

[0019] Furthermore, the magnetic float 4 is elliptical in shape and is slidably connected to the inner wall of the tube 1. This arrangement ensures that the brush plate 8 rotates stably and synchronously with the magnetic float 4, allowing the surface of the magnetic float 4 to fully contact the inner wall of the tube 1, thus guaranteeing the sensitivity of the float as the liquid level rises and falls.

[0020] Specifically, such as Figures 1 to 4As shown, the self-cleaning level gauge of this disclosure includes a tube body 1 and a magnetic flap 2 on one side of the tube body 1, and an installation tube 3 fixed on the other side of the tube body 1. A magnetic float 4 is movably arranged inside the tube body 1, a drain pipe 9 is rotatably installed at the bottom of the tube body 1, a valve body 10 is fixed at the bottom of the drain pipe 9, a drive motor 6 is installed at the top of the tube body 1, a turntable 7 is fixed to the output shaft of the drive motor 6, and the turntable 7 is rotatably connected to the inside of the tube body 1. Brush plates 8 are symmetrically arranged at the bottom of the turntable 7, and the brush plates 8 are slidably connected to both sides of the magnetic float 4. A drain mechanism 5 is also provided inside the drain pipe 9.

[0021] When cleaning is required, the drive motor 6 is started, which drives the turntable 7 and brush plate 8 to rotate. As the brush plate 8 rotates, it cleans the impurities on the inner wall of the tube body 1. With the elliptical structure of the magnetic float 4, the rotation of the brush plate 8 drives the magnetic float 4 to rotate inside the tube body 1. The rotation of the magnetic float 4 also helps to clean the impurities attached to the surface where the magnetic float 4 contacts the inner wall of the tube body 1. The brush plate 8 cleans the area where the magnetic float 4 contacts the inner wall of the tube body 1. The impurities inside the tube body 1 fall downward into the drain pipe 9 and are discharged through the drain mechanism 5.

[0022] For example, such as Figures 1 to 4 As shown, the sewage discharge mechanism 5 includes a fixed plate 501, a spiral pusher blade 507 located inside the sewage discharge pipe 9, and a movable plate 503. The fixed plate 501 is fixed to the bottom of the pipe body 1 to separate the pipe body 1 from the sewage discharge pipe 9. The fixed plate 501 has at least one first through hole 502 extending through its thickness direction. The spiral pusher blade 507 is located on the side of the sewage discharge pipe 9 away from the pipe body 1, and the movable plate 503 is located between the fixed plate 501 and the spiral pusher blade 507.

[0023] The movable plate 503 is fixedly connected to the inner wall of the drain pipe 9 along its circumference, and the movable plate 503 has at least one second through hole 504 penetrating its thickness direction. A rotating shaft 506 is connected through the central area of ​​the movable plate 503. The top of the rotating shaft 506 extends through the fixed plate 501 and is connected to symmetrically arranged connecting rods 505. The first end of the connecting rod 505 is connected to the rotating shaft 506, and the second end of the connecting rod 505 is fixedly connected to the corresponding brush plate 8. The spiral pusher blade 507 is sleeved on the bottom outer surface of the rotating shaft 506, and the spiral pusher blade 507 is rotatably connected to the inner wall of the drain pipe 9.

[0024] Specifically, such as Figures 1 to 4As shown, the sewage discharge mechanism 5 includes a fixed plate 501, a spiral pusher blade 507, and a movable plate 503. The fixed plate 501 is located at the bottom end of the pipe body 1 and has a first through hole 502. The movable plate 503 is located on the inner wall of the sewage discharge pipe 9 near the end of the pipe body 1 and has a second through hole 504. A rotating shaft 506 is fixedly connected through the middle of the movable plate 503, and the top of the rotating shaft 506 extends to the top of the fixed plate 501. Connecting rods 505 are symmetrically arranged on the top of the rotating shaft 506, and the ends of the connecting rods 505 are fixedly connected to the inner wall of the brush plate 8. A spiral pusher blade 507 is sleeved on the outer side of the rotating shaft 506 and is rotatably connected to the inner wall of the sewage discharge pipe 9.

[0025] When cleaning is required, the drain pipe 9 is rotated, causing the movable plate 503 to rotate. The movable plate 503 rotates until the second through hole 504 coincides with the first through hole 502, at which point it stops rotating. At this time, the drive motor 6 is started to drive the turntable 7 and the brush plate 8 to rotate. Simultaneously, the brush plate 8 drives the rotating shaft 506 to rotate via the connecting rod 505, and the rotating shaft 506 drives the spiral pusher blade 507 to rotate. Impurities inside the pipe body 1 are discharged into the drain pipe 9 through the coincident second through hole 504 and first through hole 502, and continue to be discharged downwards to the valve body 10 under the rotation of the spiral pusher blade 507, facilitating the rapid discharge of impurities.

[0026] For example, such as Figures 1 to 4 As shown, the outer wall of the drain pipe 9 is fitted with an anti-slip ring (not shown), and the anti-slip ring has anti-slip texture. This design increases the friction between the operator's hand and the drain pipe 9, making it easier and more convenient to rotate the drain pipe 9 to adjust the position of the movable plate 503, and preventing slippage during operation.

[0027] The number of first through holes 502 and the number of second through holes 504 are the same, and their diameters are identical. Furthermore, both the first through holes 502 and the second through holes 504 are fan-shaped. This fan-shaped structure increases the flow area of ​​the through holes, and combined with the matching number and diameter design, allows impurities cleaned from inside the pipe body 1 to quickly and smoothly pass through the through holes into the drain pipe 9.

[0028] like Figure 2 As shown, the inner wall of the drain pipe 9 is provided with a raised ring (not labeled), and the outer wall of the pipe body 1 is provided with a groove (not labeled) that matches the raised ring, and a sealing ring is provided inside the groove. The cooperation between the raised ring and the groove can accurately position the connection between the drain pipe 9 and the pipe body 1, ensuring the alignment accuracy of the movable plate 503 and the fixed plate 501 during rotation adjustment. The sealing ring can enhance the sealing performance at the connection between the two, prevent leakage of the measured medium, and improve the sealing performance and safety of the device.

[0029] Furthermore, the fixing plate 501 is welded to the bottom of the tube body 1, and a wear-resistant layer is provided on the side of the fixing plate 501 facing away from the spiral pusher blade 507. The welding fixing method makes the connection of the fixing plate 501 more firm and stable, and can withstand the impact of impurities and vibration during device operation. The wear-resistant layer can reduce frictional wear between the brush plate 8 and the fixing plate 501 when rotating.

[0030] As a specific example, the working process of a self-cleaning level gauge is described in detail below: When impurities need to be cleaned, the drive motor 6 is started, which drives the turntable 7 and brush plate 8 to rotate. As the brush plate 8 rotates, it cleans the impurities from the inner wall of the tube body 1. Due to the elliptical structure of the magnetic float 4, the rotation of the brush plate 8 causes the magnetic float 4 to rotate inside the tube body 1, causing impurities to accumulate at the lower part of the tube body 1 (at this time, the first through hole 502 and the second through hole 504 are offset). Then, the drive motor 6 is turned off, and the drain pipe 9 is rotated. The drain pipe 9 drives the movable plate 503 to rotate, stopping when the second through hole 504 coincides with the first through hole 502. Then, the drive motor 6 is started again, driving the turntable 7 and brush plate 8 to rotate. The rotating brush plate 8, through the connecting rod 505, drives the rotating shaft 506 to rotate, which in turn drives the spiral pusher blade 507 to rotate. Impurities inside the pipe body 1 are discharged into the drain pipe 9 through the overlapping second through hole 504 and first through hole 502, and continue to be discharged downward into the valve body 10 under the rotation of the spiral pusher blade 507, which facilitates the rapid discharge of impurities.

[0031] The self-cleaning level gauge of this disclosure, through the coordinated use of a tube body, magnetic flap, mounting tube, magnetic float, drive motor, turntable, brush plate, drain pipe, and valve body, enables the drive motor to drive the turntable and brush plate to rotate, facilitating the brush plate to directly clean impurities from the inner wall of the tube. Simultaneously, thanks to the elliptical structure of the magnetic float, the brush plate rotation drives the magnetic float to rotate synchronously within the tube, without hindering the normal adsorption function of the magnetic float. This prevents impurities from affecting the magnetic adsorption effect inside the tube, reduces level measurement errors caused by impurities, lowers the frequency of manual cleaning, and brings convenience to users.

[0032] By using a fixed plate, a first through hole, a movable plate, a second through hole, a connecting rod, a rotating shaft, and a spiral pusher blade in conjunction, the brush plate is driven by a drive motor to rotate the rotating shaft and the spiral pusher blade. Impurities inside the pipe quickly enter the drain pipe through the first and second through holes, and are then accelerated into the valve body by the rotation of the spiral pusher blade, achieving efficient discharge of impurities. This reduces cleaning time and improves the efficiency of impurity discharge.

[0033] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A self-cleaning level gauge, comprising a tube body, a magnetic flap mounted axially on the outer surface of the tube body, and an installation pipe communicating with the tube body and for water inlet; characterized in that, A magnetic float ball is movably installed inside the pipe body, and a rotatable sewage pipe is installed at the bottom of the pipe body. A valve body is fixedly connected to the bottom of the sewage pipe. A drive motor is installed at the top of the tube, and a turntable is fixedly connected to the output shaft of the drive motor. The turntable is rotatably connected to the inner wall of the tube. Brush plates are symmetrically arranged at the bottom of the turntable. The brush plates are rotatably connected to the inner wall of the tube along the circumference of the tube. The magnetic float is slidably connected to the brush plates along the axial direction of the tube. The drain pipe is equipped with a drain mechanism, which can discharge the impurities cleaned by the brush plate.

2. The self-cleaning level gauge according to claim 1, characterized in that, The sewage discharge mechanism includes a fixed plate, a spiral pusher blade located inside the sewage discharge pipe, and a movable plate; the fixed plate is fixed to the bottom of the pipe body to separate the pipe body from the sewage discharge pipe; wherein, the fixed plate has at least one first through hole penetrating its thickness direction; The spiral pusher blade is located on the side of the sewage pipe away from the pipe body, and the movable plate is located between the fixed plate and the spiral pusher blade; The movable plate is fixedly connected to the inner wall of the sewage pipe along the circumference of the sewage pipe, and the movable plate has at least one second through hole penetrating its thickness direction; a rotating shaft is connected through the central area of ​​the movable plate, the top of the rotating shaft extends through the fixed plate and is connected to symmetrically arranged connecting rods, the first end of the connecting rod is connected to the rotating shaft, and the second end of the connecting rod is fixedly connected to the corresponding brush plate; The spiral pusher blade is fitted onto the bottom outer surface of the rotating shaft, and the spiral pusher blade is rotatably connected to the inner wall of the sewage pipe.

3. The self-cleaning level gauge according to claim 1, characterized in that, The magnetic buoy is elliptical in shape and is slidably connected to the inner wall of the tube.

4. The self-cleaning level gauge according to claim 1, characterized in that, The outer wall of the sewage pipe is fitted with an anti-slip ring, and the anti-slip ring is provided with anti-slip texture.

5. The self-cleaning level gauge according to claim 2, characterized in that, The number of the first through holes and the second through holes are the same, and the hole diameters are identical.

6. The self-cleaning level gauge according to claim 5, characterized in that, Both the first through hole and the second through hole are arranged in a fan shape.

7. The self-cleaning level gauge according to claim 1, characterized in that, The inner wall of the sewage pipe is provided with a raised ring, and the outer wall of the pipe body is provided with a groove that matches the raised ring, and a sealing ring is provided inside the groove.

8. The self-cleaning level gauge according to claim 2, characterized in that, The fixing plate is welded and fixed to the bottom of the tube body, and a wear-resistant layer is provided on the side of the fixing plate away from the spiral pusher blade.

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