External water tank liquid level meter

Abstract

The utility model discloses an external water tank liquid level meter which comprises a liquid level cylinder, a filter screen is arranged on the lower portion in the liquid level cylinder, a top cover covers the top of the liquid level cylinder, a pulley is fixedly installed on one side of the top of the top cover, and a water inlet pipe is fixedly installed on the side, away from the pulley, of the top of the top cover. According to the utility model, the filter screen is arranged at the lower part in the liquid level cylinder, so that substances such as impurities, sediments or bubbles in the water tank can be filtered out, and the problem that the floating ball is blocked by the substances, so that the magnetic turning plate cannot be turned over normally is avoided; impurities and sediments in the liquid level cylinder can be conveniently cleaned, the problem that the liquid level cylinder of the magnetic flap liquid level meter is inconvenient to clean is solved, guide grooves are formed in the two sides of the inner wall of the liquid level cylinder, spherical protruding parts are arranged on the outer walls of the two sides of the magnetic floater, stable operation of the floater in the liquid level cylinder can be guaranteed, and the magnetic flap liquid level meter is convenient to clean. And the measurement precision of the liquid level meter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level gauges, in particular to an external water tank liquid level gauge. Background Art

[0002] An external tank level gauge is a device used to measure the liquid level in a water tank, usually installed outside the water tank. It usually consists of a sensor, a display, and a controller. The sensor is responsible for measuring the liquid level in the water tank, and then transmits the data to the controller, which then displays the data on the display. An external tank level gauge can help users monitor the liquid level of the water tank in real time so that they can replenish or drain the liquid in the water tank in time.

[0003] Commonly used external water tank level gauges include damping float level gauges, capacitance level gauges, magnetic flap level gauges, etc. The existing magnetic flap level gauge measures the liquid level height through the cooperation of a float and a magnetic flap. When the liquid level rises, the float will also rise, and the magnetic flap will flip, thereby changing the output signal. However, after the magnetic flap level gauge has been used for a long time, the float will be stuck by impurities, sediments or bubbles in the water tank, causing the magnetic flap to fail to flip normally, and it is extremely inconvenient to clean the liquid level cylinder of the magnetic flap level gauge.

[0004] Therefore, it is necessary to invent an external water tank level gauge to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an external water tank level gauge to solve the above-mentioned technical deficiencies.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an external water tank level gauge, comprising a level cylinder, a filter screen is arranged at the lower part of the interior of the level cylinder, a top cover is covered on the top of the level cylinder, a pulley is fixedly installed on one side of the top of the top cover, a water inlet pipe is fixedly installed on the side of the top of the top cover away from the pulley, and a cleaning mechanism is arranged on the upper part of the interior of the level cylinder;

[0007] The cleaning mechanism comprises:

[0008] A brush plate is arranged above the interior of the liquid level cylinder, the brush plate is adapted to the inner diameter of the liquid level cylinder, and bristles are arranged around the outer wall of the brush plate;

[0009] A connecting rod is fixedly installed below an outer wall of one side of the liquid level cylinder. A pull rope is wound around the connecting rod. One end of the pull rope is fixedly connected to the top of the brush plate, and one end of the pull rope is located on a pulley.

[0010] As a preferred solution of the utility model, a through hole is opened in the center of the top of the top cover, a sealing plug is provided at the position of the through hole of the top cover, and the lower end of the sealing plug is threadedly connected to the through hole of the top cover.

[0011] As a preferred embodiment of the present invention, an upper guide pipe valve is fixedly installed on the upper back of the liquid level cylinder, a lower guide pipe valve is fixedly installed on the lower back of the liquid level cylinder, and the filter is installed on a support, and the position of the filter is higher than that of the lower guide pipe valve.

[0012] As a preferred solution of the utility model, the bottom of the liquid level cylinder is connected to a sewage pipe via a flange, and the filter screen is fixedly mounted on the flange at the upper end of the sewage pipe via a support.

[0013] As a preferred solution of the utility model, a liquid level display panel is arranged on the front of the liquid level cylinder, and a magnetic float is arranged inside the liquid level cylinder, and the magnetic float is located between the upper and lower parts of the filter net and the lower part of the brush plate.

[0014] As a preferred solution of the utility model, guide grooves are provided on both sides of the inner wall of the liquid level cylinder, and spherical protrusions are provided on both sides of the outer walls of the magnetic float. The spherical protrusions on both sides of the magnetic float are adapted to the guide grooves on both sides of the inner wall of the liquid level cylinder.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. By setting a filter net at the bottom of the liquid level cylinder, impurities, sediments or bubbles in the water tank can be filtered out, avoiding the problem that these substances get stuck in the float and cause the magnetic flap to fail to flip normally. A cleaning mechanism is set at the top of the liquid level cylinder, including a brush plate and a connecting rod, which can easily clean the impurities and sediments inside the liquid level cylinder, avoiding the problem of inconvenient cleaning of the liquid level cylinder of the magnetic flap level gauge. Guide grooves are opened on both sides of the inner wall of the liquid level cylinder, and spherical protrusions are set on the outer walls of both sides of the magnetic float, which can ensure the stable operation of the float in the liquid level cylinder and improve the measurement accuracy of the liquid level gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0019] Figure 2It is an exploded view from the first perspective of the overall structure of the utility model;

[0020] Figure 3 It is an exploded view from a second perspective of the overall structure of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the top cover of the utility model.

[0022] Description of reference numerals:

[0023] 1. Liquid level cylinder; 2. Top cover; 21. Sealing plug; 22. Water inlet pipe; 23. Pulley; 3. Cleaning mechanism; 31. Brush plate; 32. Pull rope; 33. Connecting rod; 4. Filter screen; 5. Drain pipe; 6. Liquid level display panel; 7. Upper guide pipe valve; 8. Lower guide pipe valve; 9. Magnetic float. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-4 An external water tank level gauge shown in the figure comprises a liquid level cylinder 1, a filter screen 4 is arranged at the lower part of the liquid level cylinder 1, which can filter out impurities, sediments or bubbles in the water in the liquid level cylinder 1 to prevent these substances from getting stuck in the float and affecting the flipping of the magnetic flap, the top of the liquid level cylinder 1 is covered with a top cover 2, a pulley 23 is fixedly installed on one side of the top of the top cover 2, a water inlet pipe 22 is fixedly installed on the side of the top of the top cover 2 away from the pulley 23, and a cleaning mechanism 3 is arranged on the upper part of the liquid level cylinder 1;

[0026] The cleaning mechanism 3 comprises:

[0027] The brush plate 31 is arranged above the interior of the liquid level cylinder 1. The brush plate 31 is adapted to the inner diameter of the liquid level cylinder 1, and bristles are arranged around the outer wall of the brush plate 31.

[0028] A connecting rod 33 is fixedly installed below the outer wall of one side of the liquid level cylinder 1. A pull rope 32 is wound around the connecting rod 33. One end of the pull rope 32 is fixedly connected to the top of the brush plate 31. One end of the pull rope 32 is located on the pulley 23, so that the brush plate 31 can be conveniently operated by the connecting rope and the pulley 23.

[0029] Furthermore, in the above technical solution, a through hole is opened at the top center of the top cover 2, a sealing plug 21 is provided at the position of the through hole of the top cover 2, and the lower end of the sealing plug 21 is threadedly connected to the through hole of the top cover 2.

[0030] Furthermore, in the above technical solution, an upper lead pipe valve 7 is fixedly installed on the upper back side of the liquid level cylinder 1, and a lower lead pipe valve 8 is fixedly installed on the lower back side of the liquid level cylinder 1. The filter screen 4 is installed on a support, and the position of the filter screen 4 is higher than the position of the lower lead pipe valve 8, so as to ensure the normal operation of the lower lead pipe valve 8, and the inflow and outflow of liquid in the liquid level cylinder 1 can be controlled by these two valves.

[0031] Furthermore, in the above technical solution, the bottom of the liquid level cylinder 1 is connected to a drain pipe 5 via a flange to facilitate the discharge of sewage inside the liquid level cylinder, and the filter screen 4 is fixedly installed on the flange at the upper end of the drain pipe 5 via a support, thereby effectively supporting and connecting the installation position of the filter screen 4.

[0032] Furthermore, in the above technical solution, a liquid level display panel 6 is provided on the front of the liquid level cylinder 1, and a magnetic float 9 is provided inside the liquid level cylinder 1. The magnetic float 9 is located between the upper and lower parts of the filter screen 4 and the lower part of the brush plate 31, so that the liquid level height can be measured conveniently, and at the same time, the magnetic float 9 can be prevented from being stuck, which affects the measurement accuracy of the liquid level meter.

[0033] Furthermore, in the above technical solution, guide grooves are provided on both sides of the inner wall of the liquid level cylinder 1, and spherical protrusions are provided on both sides of the outer walls of the magnetic float 9. The spherical protrusions on both sides of the magnetic float 9 are adapted to the guide grooves on both sides of the inner wall of the liquid level cylinder 1, so that the magnetic float 9 can move smoothly along the guide grooves when moving up and down in the liquid level cylinder 1, thereby ensuring the accuracy of the liquid level measurement.

[0034] The working process of an external water tank level gauge provided by the utility model when in use is as follows:

[0035] Assemble the liquid level gauge and then install it outside the water tank. When the liquid level gauge is in use, the water inside the water tank enters the lower end of the liquid level cylinder 1 from the upper lead pipe valve 7, and then the water starts to rise through the filter screen 4 below the liquid level cylinder 1, and the filter screen 4 filters the impurities in the water, so that the impurities in the water transported to the liquid level cylinder 1 are blocked above the filter screen 4, thereby preventing excessive impurities from entering the upper part of the liquid level cylinder 1, thereby reducing the adsorption of impurities on the inner wall of the liquid level cylinder 1, and avoiding affecting the rise and fall of the magnetic float 9 in the liquid level cylinder 1. After a period of time, separate the upper end flange of the sewage pipe 5 from the lower end flange of the liquid level cylinder 1, and take out the support with the filter screen 4, replace or clean the filter screen 4, and avoid clogging of the filter screen 4 and affecting the rise and fall of the water level in the liquid level cylinder 1.

[0036] Although the filter 4 can prevent most impurities from being isolated at the bottom of the liquid level cylinder 1, some small impurities will pass through the filter 4 and enter the top of the liquid level cylinder 1. After the liquid level cylinder 1 is used for a long time, these small impurities will adhere to the inner wall of the liquid level cylinder 1, which will affect the rise and fall of the magnetic float 9 inside the liquid level cylinder 1, and even cause the magnetic float 9 to be stuck in the liquid level cylinder 1. Therefore, the liquid in the liquid level cylinder 1 is emptied, and then the sealing plug 21 on the top of the top cover 2 is opened, and the water inlet pipe 22 is connected to the clean water supply. The brush plate 31 above the liquid level cylinder 1 falls freely under the action of its own gravity. When the brush plate 31 falls to the lowest position of the liquid level cylinder 1, the pull rope 32 is pulled to raise the brush plate 31. When the brush plate 31 rises to the highest point, the brush plate 31 is released again to let it fall. The above process is repeated to repeatedly clean the inner wall of the liquid level cylinder 1 and the part above the filter screen 4 through the bristles on the outer wall of the brush plate 31. When the cleaning is completed, the sealing plug 21 is locked again.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An external water tank level gauge, comprising a level cylinder (1), characterized in that: A filter screen (4) is arranged at the lower part of the interior of the liquid level cylinder (1); a top cover (2) is arranged on the top of the liquid level cylinder (1); a pulley (23) is fixedly mounted on one side of the top of the top cover (2); a water inlet pipe (22) is fixedly mounted on the side of the top of the top cover (2) away from the pulley (23); and a cleaning mechanism (3) is arranged at the upper part of the interior of the liquid level cylinder (1); The cleaning mechanism (3) comprises: A brush plate (31) is arranged above the interior of the liquid level cylinder (1), the brush plate (31) is adapted to the inner diameter of the liquid level cylinder (1), and bristles are arranged around the outer wall of the brush plate (31); A connecting rod (33) is fixedly mounted below an outer wall of one side of the liquid level cylinder (1), a pull rope (32) is wound around the connecting rod (33), one end of the pull rope (32) is fixedly connected to the top of the brush plate (31), and one end of the pull rope (32) is located on the pulley (23).

2. The external water tank level gauge according to claim 1, characterized in that: A through hole is provided at the center of the top of the top cover (2), a sealing plug (21) is provided at the position of the through hole of the top cover (2), and the lower end of the sealing plug (21) is threadedly connected to the through hole of the top cover (2).

3. The external water tank level gauge according to claim 1, characterized in that: An upper lead pipe valve (7) is fixedly installed on the upper back of the liquid level cylinder (1), and a lower lead pipe valve (8) is fixedly installed on the lower back of the liquid level cylinder (1). The filter screen (4) is installed on a support member, and the position of the filter screen (4) is higher than the position of the lower lead pipe valve (8).

4. The external water tank level gauge according to claim 1, characterized in that: The bottom of the liquid level cylinder (1) is connected to a sewage pipe (5) via a flange, and the filter screen (4) is fixedly mounted on the flange at the upper end of the sewage pipe (5) via a support.

5. The external water tank level gauge according to claim 1, characterized in that: A liquid level display panel (6) is arranged on the front of the liquid level cylinder (1), and a magnetic float (9) is arranged inside the liquid level cylinder (1). The magnetic float (9) is located between the upper and lower parts of the filter screen (4) and the lower part of the brush plate (31).

6. The external water tank level gauge according to claim 5, characterized in that: Guide grooves are provided on both sides of the inner wall of the liquid level cylinder (1), and spherical protrusions are provided on both sides of the outer walls of the magnetic float (9). The spherical protrusions on both sides of the magnetic float (9) are adapted to the guide grooves on both sides of the inner wall of the liquid level cylinder (1).

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