Magnetic flap liquid level meter

Abstract

The utility model discloses a magnetic turning plate liquid level meter which comprises a measuring shell, a magnetic floater is installed in the measuring shell, a turning plate shell is arranged on the outer side of the measuring shell, red turning columns and white turning columns which are evenly distributed are installed in the turning plate shell, and the magnetic turning plate liquid level meter further comprises a cleaning mechanism. The cleaning mechanism comprises a fixing base, a fixing shaft, a reciprocating lead screw, a circular cleaning brush and an annular double-sided cleaning brush, the fixing base is arranged on the bottom wall of the measuring shell, the reciprocating lead screw is arranged on the upper side of the fixing base through the fixing shaft, and the fixing shaft and the reciprocating lead screw both penetrate through a first circular hole formed in the middle of the magnetic floater; the outer side of the reciprocating lead screw is in threaded connection with a circular cleaning brush, the lower side of the circular cleaning brush is provided with an annular double-face cleaning brush through a connecting rod, and according to the magnetic turning plate liquid level meter, through the transmission element, adhered impurity cleaning operation can be automatically conducted on the inner wall of the magnetic turning plate liquid level meter and the surface of the magnetic floater at the same time; and the interference on the liquid level measurement accuracy of the device due to the existence of impurities is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level meter technical field, concretely to a kind of magnetic flap liquid level meter. BACKGROUND

[0002] Magnetic flap liquid level meter is according to the similar product at home and abroad to improve and according to the magnetic liquid level meter standard HG / T21584-95 issued by original chemical industry department to develop and produce product, the instrument can be used for the medium liquid level detection of various towers, tanks, tanks, spherical vessels and boilers and other equipment, in prior art: the patent with authorized publication number CN 111750958 A discloses a kind of magnetic flap liquid level meter, including pipe body, the side top and bottom of pipe body are fixedly installed with connecting flange, the bottom of pipe body is fixedly installed with blowdown valve, the other side of pipe body is fixedly installed with scale bar, the outer ring of pipe body is fixedly installed with flap box at the front of scale bar, magnetism small flip column is movably installed in flap box, the outer ring of guide column is movably sleeved with magnetic float in the pipe body, the two sides in the inside of precision reading box are provided with sliding groove, precision reading device is movably sleeved in sliding groove, by being set magnetic float and the distance between outer ring and pipe body inner wall is kept certain, precision reading box is set and cooperates with the U-shaped magnet installed in magnetic float, effectively prevent the blockage of magnetic float, while improve the precision of measurement, however, the liquid in the unit measured by device passes itself, after long-term use, impurities in liquid can be adhered to the wall of device itself and the surface of magnetic float, so as to hinder the vertical movement of magnetic float in device, while the weight of magnetic float is increased by impurities adhered to the surface of magnetic float, resulting in that the liquid measurement result of device is not accurate enough, there is improvement space, for this purpose, we propose a kind of magnetic flap liquid level meter. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problems of overcoming the defects of the prior art, and provides a magnetic flap liquid level meter, which can automatically clean the impurities adhered to the inner wall of the magnetic flap liquid level meter and the surface of the magnetic float through the transmission element, avoid the interference of the impurities on the accuracy of the liquid level measurement of the device, and effectively solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of magnetic flap liquid level meter, including measuring shell, the inside of measuring shell is installed with magnetic float, the outside of measuring shell is equipped with flap shell, the inside of flap shell is installed with the red and white flip column of uniform distribution, still include cleaning mechanism;

[0005] The cleaning mechanism comprises a fixed seat, a fixed shaft, a reciprocating screw rod, a circular cleaning brush and an annular double-sided cleaning brush. The fixed seat is arranged on the bottom wall of the measuring shell. The upper side of the fixed seat is provided with the reciprocating screw rod through the fixed shaft. The fixed shaft and the reciprocating screw rod both pass through the circular hole one arranged in the middle of the magnetic float. The outer side of the reciprocating screw rod is threadedly connected with the circular cleaning brush. The lower side of the circular cleaning brush is provided with the annular double-sided cleaning brush through the connecting rod. The device can automatically clean the adhesion impurities on the inner wall of the magnetic float liquid level meter and the surface of the magnetic float at the same time through the transmission element, so as to avoid the interference on the liquid level measurement accuracy of the device caused by the existence of impurities.

[0006] Further, a single-chip microcomputer is arranged outside the measuring shell. The input end of the single-chip microcomputer is electrically connected with the external power supply, and the control electric element is convenient.

[0007] Further, two symmetrical connecting pipes are arranged through the inner wall of the measuring shell. The middle part of each connecting pipe is connected with an electromagnetic valve one in series. The input end of the electromagnetic valve one is electrically connected with the output end of the single-chip microcomputer, so as to conveniently connect the device with the external measuring unit and control the opening and closing of the connecting part of the device.

[0008] Further, a filter screen is arranged at the inner right end of each connecting pipe, so as to filter the impurities in the liquid entering the magnetic float liquid level meter.

[0009] Further, the cleaning mechanism further comprises a rotating plate, a synchronous rod and a motor. The rotating plate is rotatably connected to the top wall of the measuring shell through a rotating shaft. The lower side of the rotating plate is provided with two symmetrical synchronous rods. The lower end of each synchronous rod passes through the circular hole two arranged on the circular cleaning brush and the annular double-sided cleaning brush in correspondence. The upper side of the measuring shell is provided with a motor. The input end of the motor is electrically connected with the output end of the single-chip microcomputer. The output shaft of the motor is fixedly connected with the upper end of the rotating shaft, so as to provide power for the impurity cleaning in the magnetic float liquid level meter.

[0010] Further, the cleaning mechanism further comprises a jacking rod. The jacking rod is symmetrically arranged on the lower side of the rotating plate. The jacking rod is installed in cooperation with the circular hole three arranged on the circular cleaning brush, so as to eject the magnetic float possibly clamped in the annular double-sided cleaning brush.

[0011] Further, an observation window is arranged on the outer side of the measuring shell, so as to observe the environment in the magnetic float liquid level meter.

[0012] Further, a sewage pipe is arranged through the bottom wall of the measuring shell. The middle part of the sewage pipe is connected with an electromagnetic valve two in series. The input end of the electromagnetic valve two is electrically connected with the output end of the single-chip microcomputer, so as to discharge the impurities and liquid in the magnetic float liquid level meter.

[0013] Further, the outer side of the fixed shaft and the reciprocating screw rod is provided with a guide groove, the two guide grooves are connected, the circular hole of the magnetic float is slidably connected with the guide groove through the guide strip, and horizontal rotation of the magnetic float in the magnetic flap liquid level meter during vertical movement is avoided.

[0014] Compared with the prior art, the magnetic flap liquid level meter has the following advantages:

[0015] When the magnetic flap liquid level meter is used, the cleaning parts can move vertically and rotate horizontally in the device through the reciprocating screw rod, the circular cleaning brush, the annular double-sided cleaning brush, the rotating plate, the synchronous rod, the jacking rod and the motor, so that the inner wall of the magnetic flap liquid level meter and the surface of the magnetic float are cleaned simultaneously, and the interference of impurities on the liquid level measurement accuracy of the device is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is an internal structural schematic diagram of the utility model;

[0018] Figure 3 It is a left side structural schematic diagram of the utility model;

[0019] Figure 4 It is a sectional structural schematic diagram of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the circular cleaning brush and the annular double-sided cleaning brush of the utility model;

[0021] Figure 6 It is an enlarged structural schematic diagram of A of the utility model.

[0022] In the drawing: 1 measurement shell, 2 single-chip microcomputer, 3 magnetic float, 4 flap shell, 5 red and white flip column, 6 connecting pipe, 7 electromagnetic valve one, 8 filter screen, 9 cleaning mechanism, 91 fixed seat, 92 fixed shaft, 93 reciprocating screw rod, 94 circular cleaning brush, 95 annular double-sided cleaning brush, 96 rotating plate, 97 synchronous rod, 98 jacking rod, 99 motor, 10 observation window, 11 blowdown pipe, 12 electromagnetic valve two, 13 guide groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-6 The embodiment provides a technical scheme: a magnetic flap liquid level meter, which comprises a measuring shell 1, a magnetic float 3 is arranged in the measuring shell 1, a flap shell 4 is arranged on the outer side of the measuring shell 1, red and white flip columns 5 are uniformly arranged in the flap shell 4, a single-chip microcomputer 2 is arranged outside the measuring shell 1, the input end of the single-chip microcomputer 2 is electrically connected with an external power supply, two symmetrical connecting pipes 6 are arranged through the inner wall of the measuring shell 1, an electromagnetic valve one 7 is connected in series in the middle of each connecting pipe 6, the input end of the electromagnetic valve one 7 is electrically connected with the output end of the single-chip microcomputer 2, a filter screen 8 is arranged at the right end of the inside of each connecting pipe 6, an observation window 10 is arranged on the outer side of the measuring shell 1, when the magnetic flap liquid level meter is used, first, the device is connected with an external liquid container in communication through the flange on the connecting pipe 6 by means of bolts, the liquid in the external liquid container enters through the lower connecting pipe 6, the magnetic float 3 is subjected to the buoyancy of the liquid entering the device and moves upwards along the fixed shaft 92 and the reciprocating lead screw 93, the magnetic float 3 moves up and down in the measuring shell 1 along with the rise and fall of the liquid level, the permanent magnet steel in the magnetic float 3 drives the red and white flip columns 5 to turn 180 degrees through magnetic coupling, when the liquid level rises, the flip column turns from white to red, and when the liquid level falls, the flip column turns from red to white, so that the liquid level in the liquid container is measured, the liquid entering the magnetic flap liquid level meter is filtered through the filter screen 8, the measuring environment in the magnetic flap liquid level meter is observed through the observation window 10, and a cleaning mechanism 9 is further arranged.

[0025] The cleaning mechanism 9 comprises a fixed seat 91, a fixed shaft 92, a reciprocating screw rod 93, a circular cleaning brush 94 and an annular double-sided cleaning brush 95. The fixed seat 91 is arranged on the bottom wall of the measuring shell 1. The upper side of the fixed seat 91 is provided with the reciprocating screw rod 93 through the fixed shaft 92. Both the fixed shaft 92 and the reciprocating screw rod 93 pass through the circular hole one arranged in the middle of the magnetic float 3. The outer side of the reciprocating screw rod 93 is threadedly connected with the circular cleaning brush 94. The lower side of the circular cleaning brush 94 is provided with the annular double-sided cleaning brush 95 through a connecting rod. The cleaning mechanism 9 further comprises a rotating plate 96, a synchronous rod 97 and a motor 99. The rotating plate 96 is rotationally connected to the top wall of the measuring shell 1 through a rotating shaft. The lower side of the rotating plate 96 is provided with two symmetrical synchronous rods 97. The lower ends of the synchronous rods 97 pass through the circular holes two arranged on the circular cleaning brush 94 and the annular double-sided cleaning brush 95. The upper side of the measuring shell 1 is provided with the motor 99. The input end of the motor 99 is electrically connected with the output end of the single-chip microcomputer 2. The output shaft of the motor 99 is fixedly connected with the upper end of the rotating shaft. The cleaning mechanism 9 further comprises a top rod 98. The top rod 98 is symmetrically arranged on the lower side of the rotating plate 96. The top rod 98 is cooperatively installed with the circular hole three arranged on the circular cleaning brush 94. The bottom wall of the measuring shell 1 is provided with a sewage pipe 11. The middle part of the sewage pipe 11 is connected with an electromagnetic valve two 12 in series. The input end of the electromagnetic valve two 12 is electrically connected with the output end of the single-chip microcomputer 2. The outer sides of the fixed shaft 92 and the reciprocating screw rod 93 are provided with guide grooves 13. The two guide grooves 13 are connected with each other. The magnetic float 3 is slidably connected with the guide grooves 13 through a guide strip arranged in the circular hole one. When the magnetic float liquid level meter is observed to have more impurities in the magnetic float liquid level meter through the observation window 10 after long-term use, the single-chip microcomputer 2 closes the electromagnetic valve one 7. Then the single-chip microcomputer 2 starts the motor 99 to drive the output shaft to rotate the rotating plate 96 through the rotating shaft. The rotating plate 96 drives the synchronous rod 97 to rotate synchronously. During the rotation of the synchronous rod 97, the synchronous rod 97 is rotatably clamped with the circular hole two to drive the circular cleaning brush 94 and the annular double-sided cleaning brush 95 to rotate synchronously. During the rotation of the circular cleaning brush 94, the circular cleaning brush 94 is threadedly connected with the reciprocating screw rod 93 to drive the annular double-sided cleaning brush 95 to move up and down vertically through the connecting rod synchronously. When the annular double-sided cleaning brush 95 moves vertically and rotates, the outer side of the annular double-sided cleaning brush 95 is in contact with the inner wall of the measuring shell 1 to clean the inner wall of the measuring shell 1. When the circular cleaning brush 94 drives the annular double-sided cleaning brush 95 to move downward by a certain degree, the inner side of the annular double-sided cleaning brush 95 is in contact with the outer side of the magnetic float 3 to clean the outer side of the magnetic float 3. When the magnetic float 3 is in contact with the upper side of the fixed seat 91 and the annular double-sided cleaning brush 95 is about to move vertically downward to the maximum downward stroke, the lower side of the circular cleaning brush 94 is in contact with the upper surface of the magnetic float 3 to clean the upper side of the magnetic float 3 as the annular double-sided cleaning brush 95 continues to move downward.The lower end of the top rod 98 penetrates into the annular double-sided cleaning brush 95 from top to bottom through the round hole three, so as to push down the magnetic float 3 in the annular double-sided cleaning brush 95, avoid the magnetic float 3 from being stuck in the annular double-sided cleaning brush 95 due to the contact pressure between the inner side brush of the annular double-sided cleaning brush 95 and the magnetic float 3, and cannot be separated from it. During the up-and-down movement of the magnetic float 3 in the device, the magnetic float 3 is slidably connected between the guide strip and the guide groove 13, so as to avoid the self-rotation phenomenon of the magnetic float 3 during the vertical movement. When the impurities in the magnetic float liquid level meter are cleaned, the worker observes the position of the annular double-sided cleaning brush 95 through the observation window 10, and timely closes the motor 99 through the single-chip microcomputer 2 according to the vertical position change of the double-sided cleaning brush 95, so that the annular double-sided cleaning brush 95 stops when the vertical position of the annular double-sided cleaning brush 95 is above the upper connecting pipe 6. Then, the single-chip microcomputer 2 opens the electromagnetic valve two 12, and the impurities and liquid cleaned out of the magnetic float liquid level meter are discharged through the blow-off pipe 11. The device can automatically clean the adhered impurities on the inner wall of the magnetic float liquid level meter and the surface of the magnetic float 3 through the transmission element, avoid the interference of the impurities on the accuracy of the liquid level measurement of the device.

[0026] The utility model provides a kind of magnetic flap liquid level meter's working principle as follows: when using magnetic flap liquid level meter, first, the device is connected with external liquid container by bolt through the flange on connecting pipe 6, the liquid in the external liquid container enters by the connecting pipe 6 on the downside, magnetic float 3 is subjected to the buoyancy of the liquid entering the device and thereby moves along fixed shaft 92 and reciprocating screw rod 93, magnetic float 3 moves up and down in measuring shell 1 with the rise and fall of liquid level, permanent magnet steel in magnetic float 3 drives red and white flip column 5 to overturn 180 degrees by magnetic coupling effect, when liquid level rises, flip column turns from white to red, when it falls, flip column turns from red to white, thereby realizing the measurement of liquid level in liquid container, impurities in liquid entering magnetic flap liquid level meter are filtered by filter screen 8, the measurement environment in magnetic flap liquid level meter is observed through observation window 10, when more impurities are observed in magnetic flap liquid level meter through observation window 10 after long-term use of magnetic flap liquid level meter, single-chip microcomputer 2 closes electromagnetic valve one 7, then single-chip microcomputer 2 starts motor 99 to make its output shaft drive rotating plate 96 to rotate through pivot, rotating plate 96 drives synchronous rod 97 to rotate synchronously, in the rotating process of synchronous rod 97, it is rotated and clamped through the sliding between itself and round hole two, thereby driving circular cleaning brush 94 and annular double-sided cleaning brush 95 to rotate synchronously, in the rotating process of circular cleaning brush 94, it is connected through the thread between itself and reciprocating screw rod 93, thereby driving annular double-sided cleaning brush 95 to move vertically up and down reciprocatingly synchronously through connecting rod, when annular double-sided cleaning brush 95 moves vertically and rotates, the brush on the outer side of annular double-sided cleaning brush 95 contacts the inner wall of measuring shell 1, thereby cleaning the inner wall of measuring shell 1, when circular cleaning brush 94 drives annular double-sided cleaning brush 95 to move down to a certain degree, the brush on the inner side of annular double-sided cleaning brush 95 contacts the outer side of magnetic float 3, thereby cleaning the outer side of magnetic float 3, when magnetic float 3 contacts the upper side of fixed seat 91 on the downside and annular double-sided cleaning brush 95 is about to move vertically down to the maximum downstroke during the cleaning process, at this time, with the continuous downward movement of annular double-sided cleaning brush 95, the lower brush of circular cleaning brush 94 contacts the upper surface of magnetic float 3, thereby cleaning the upper side of magnetic float 3 (when circular cleaning brush 94 drives annular double-sided cleaning brush 95 to move up, after circular cleaning brush 94 moves up to a certain degree, the lower end of jacking rod 98 penetrates annular double-sided cleaning brush 95 from top to bottom through round hole three, thereby jacking down magnetic float 3 in annular double-sided cleaning brush 95, avoiding the contact pressure between the brush on the inner side of annular double-sided cleaning brush 95 and magnetic float 3 from causing magnetic float 3 to be stuck in annular double-sided cleaning brush 95 and unable to separate from it), in the process of moving up and down in the device, magnetic float 3 is clamped and connected through the sliding between its guide strip and guide groove 13, thereby avoiding self-rotation phenomenon during vertical movement, after the impurities in magnetic flap liquid level meter are cleaned, staff observes the position of annular double-sided cleaning brush 95 through observation window 10,According to the vertical position change of the double-sided cleaning brush 95, the single-chip microcomputer 2 closes the motor 99 in time, so that the annular double-sided cleaning brush 95 stops at the position above the connecting pipe 6, and then the single-chip microcomputer 2 opens the electromagnetic valve 12, and the impurities and liquid in the magnetic flap liquid level meter are discharged through the drain pipe 11.

[0027] It is worth noting that the single-chip microcomputer 2 disclosed in the above embodiment can adopt STM32, the electromagnetic valve 7 and the electromagnetic valve 12 can both adopt ZCT micro stainless steel electromagnetic valves, and the motor 99 can adopt 130SZ01. The single-chip microcomputer 2 controls the electromagnetic valve 7, the motor 99 and the electromagnetic valve 12 to work by using the method commonly used in the prior art.

[0028] The above is only an embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields by using the content of the present application specification and drawings, are also included in the patent protection range of the present application.

Claims

1. A magnetic level gauge, comprising a measuring shell (1), wherein a magnetic float (3) is installed inside the measuring shell (1), and a level shell (4) is provided on the outside of the measuring shell (1), wherein uniformly distributed red and white flip columns (5) are installed inside the level shell (4), characterized in that: It also includes cleaning mechanism (9); The cleaning mechanism (9) includes a fixed seat (91), a fixed shaft (92), a reciprocating screw (93), a circular cleaning brush (94) and an annular double-sided cleaning brush (95), the fixed seat (91) is arranged on the bottom wall of the measuring shell (1), the upper side of the fixed seat (91) is provided with a reciprocating screw (93) through a fixed shaft (92), the fixed shaft (92) and the reciprocating screw (93) both pass through the circular hole one in the middle of the magnetic float (3), the outer side of the reciprocating screw (93) is threadedly connected with the circular cleaning brush (94), and the lower side of the circular cleaning brush (94) is provided with the annular double-sided cleaning brush (95) through a connecting rod.

2. A magnetic float level meter according to claim 1, characterized in that: It also includes a single-chip microcomputer (2), which is located outside the measuring shell (1), and the input end of the single-chip microcomputer (2) is electrically connected with an external power supply.

3. A magnetic float level meter according to claim 2, characterized in that: The inner wall of the measuring shell (1) is provided with two symmetrically distributed connecting pipes (6), the middle part of each connecting pipe (6) is connected in series with an electromagnetic valve (7), and the input end of the electromagnetic valve (7) is electrically connected with the output end of the single-chip microcomputer (2).

4. A magnetic float level meter according to claim 3, characterized in that: The inner right end of the connecting pipe (6) is provided with a filter screen (8).

5. A magnetic float level meter according to claim 2, characterized in that: The cleaning mechanism (9) further includes a rotating plate (96), a synchronous rod (97) and a motor (99), the rotating plate (96) is rotatably connected to the top wall of the measuring shell (1) through a rotating shaft, the lower side of the rotating plate (96) is provided with two symmetrically distributed synchronous rods (97), the lower end of each synchronous rod (97) passes through a corresponding circular hole two formed on the circular cleaning brush (94) and the annular double-sided cleaning brush (95), the upper side of the measuring shell (1) is provided with a motor (99), the input end of the motor (99) is electrically connected with the output end of the single-chip microcomputer (2), and the output shaft of the motor (99) is fixedly connected with the upper end of the rotating shaft.

6. A magnetic float level meter according to claim 5, characterized in that: The cleaning mechanism (9) further includes a top rod (98), which is symmetrically arranged on the lower side of the rotating plate (96), and the top rod (98) is installed in cooperation with the circular hole three formed on the circular cleaning brush (94).

7. A magnetic float level meter according to claim 1, characterized in that: The outer side of the measuring shell (1) is provided with an observation window (10).

8. A magnetic float level meter according to claim 2, characterized in that: The bottom wall of the measuring shell (1) is provided with a sewage pipe (11), the middle part of the sewage pipe (11) is connected in series with an electromagnetic valve (12), and the input end of the electromagnetic valve (12) is electrically connected with the output end of the single-chip microcomputer (2).

9. A magnetic float level meter according to claim 1, characterized in that: The outer side of the fixed shaft (92) and the reciprocating screw (93) is provided with a guide groove (13), and the two guide grooves (13) are connected in communication, and the circular hole one in the magnetic float (3) is slidably connected with the guide groove (13) through a guide strip.

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