Magnetic float level gauge

Abstract

A magnetic flap liquid level meter, including water tank, the top of the water tank is equipped with the first taper mouth, the top of the water tank is equipped with the third pulley and the fourth pulley, the recess of the third pulley and the fourth pulley is contacted with one end of the transmission rod, prevents the transmission rod from being inclined, the other end of the transmission rod is contacted with the circular annular recess of the first pulley and the second pulley;The top of the first pulley and the second pulley are fixedly connected with the air pipe. The liquid level meter realizes non-contact measurement with the liquid level through ingenious structure design and working principle, and has good anti-freezing performance, and can work stably in low temperature environment.

Description

Technical Field

[0001] This utility model relates to the field of liquid level monitoring, specifically to a magnetic float liquid level gauge. Background Technology

[0002] Water tank level measurement faces numerous challenges in winter outdoor environments. Traditional magnetic level gauges typically require direct contact with the liquid, which is highly susceptible to freezing in low-temperature conditions. This can cause the level gauge to malfunction, affecting measurement accuracy and potentially damaging the equipment, increasing maintenance costs and safety hazards.

[0003] Currently, although some antifreeze measures are applied to level gauges, most fail to effectively address the fundamental issue of direct contact with the liquid, resulting in limited antifreeze efficacy. Therefore, developing a magnetic float level gauge that does not directly contact the liquid level while still meeting antifreeze requirements is of great significance for the accurate and stable measurement of outdoor water tank levels during winter. Utility Model Content

[0004] This patent aims to solve the problem that when measuring the liquid level of outdoor water tanks in winter, traditional magnetic float level gauges require direct connection to the water in the tank through a connecting pipe. However, the water in the connecting pipe and the water in the level gauge are prone to freezing at low outdoor temperatures, causing the magnetic float in traditional float level gauges to malfunction.

[0005] To solve the above problems, this application provides the following technical solution:

[0006] A magnetic level gauge includes a water tank, the top of which is provided with a first conical opening.

[0007] The top of the water tank is also fixed with a third and a fourth pulley.

[0008] The grooves of the third and fourth pulleys fit snugly against the cylindrical sidewall of one end of the transmission rod to prevent the transmission rod from tilting.

[0009] The cylindrical sidewall of the other end of the transmission rod is in contact with the annular grooves of the first and second pulleys; the first and second pulleys are fixedly installed on the top of the air tube.

[0010] The outer wall of the circular side of the third and fourth pulleys is provided with a circular groove.

[0011] The first and second pulleys have annular grooves on their outer annular side walls.

[0012] One end of the transmission rod slides and contacts the inner wall of the second conical opening at the top of the air pipe, while the other end slides and contacts the inner wall of the first conical opening at the top of the water tank.

[0013] One end of the transmission rod is fixedly connected to a float, and the float contains a counterweight.

[0014] The other end of the transmission rod is fixedly connected to a permanent magnet, which is in contact with the inner wall of the trachea.

[0015] The transmission rod is a U-shaped rod.

[0016] The trachea is a rigid rubber tube filled with argon gas.

[0017] The air tube is equipped with an inflation valve at the bottom and an air release valve at the top.

[0018] The water tank is equipped with an inlet valve at the top and an outlet valve at the bottom.

[0019] Preferably, a fixing pipe is also installed at the first conical opening of the water tank, and a connecting pipe is fixedly connected to the bottom of the fixing pipe.

[0020] Preferably, the top of the water tank is also equipped with an atmospheric pipe.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. Non-contact measurement: The transmission rod avoids direct contact between the permanent magnet and the water in the tank, fundamentally solving the problem of water freezing inside the traditional magnetic level gauge at low temperatures, which causes the traditional magnetic level gauge to malfunction, thus ensuring the continuity and stability of the measurement.

[0023] 2. The magnetic float level gauge in this patent provides accurate measurement with minimal error. Its simple structure, rationally designed components, and convenient installation and maintenance reduce operating costs. It can be widely used for level measurement in various outdoor water tanks during winter, demonstrating strong practicality and promotional value. Through its ingenious structural design and working principle, this level gauge achieves non-contact measurement of the liquid level and possesses excellent anti-freezing performance, enabling stable operation in low-temperature environments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a magnetic float level gauge.

[0025] Figure 2 yes Figure 1 Enlarged structural diagram at point A (dashed line).

[0026] Figure 3 yes Figure 1 A top view of the cross-section from dashed line B1 to dashed line B2.

[0027] Reference numerals in the attached drawings: water tank 1, first conical opening 101, transmission rod 102, first pulley 103, second pulley 104, permanent magnet 105, third pulley 106, fourth pulley 107, float 2, counterweight 201, air pipe 3, second conical opening 301, air filling valve 302, air releasing valve 303, magnetic flip plate 4, scale 401, water inlet valve 5, water outlet valve 6, fixed wall 7, fixed pipe 8, connecting pipe 801, air pipe 9. Detailed Implementation

[0028] It should be understood that the terms "top," "one end," "the other end," "annular side," "outer wall," "inner," "inner sidewall," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Unless otherwise specified, the "fixed connection" described in this application refers to conventional methods such as bonding.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "equipped with," "featured," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, the description of this invention is merely a preferred embodiment and is not intended to limit the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

[0031] The model number selected in this patent is merely for ease of explanation and is not intended to restrict the use of this particular instrument model.

[0032] Example 1

[0033] like Figures 1-3 As shown,

[0034] A magnetic level gauge includes a water tank 1, the top of which is provided with a first conical opening 101.

[0035] The top of water tank 1 is also fixedly equipped with a third pulley 106 and a fourth pulley 107.

[0036] The grooves of the third pulley 106 and the fourth pulley 107 are in close contact with the cylindrical sidewall of one end of the transmission rod 102 to prevent the transmission rod 102 from tilting.

[0037] The cylindrical sidewall of the other end of the transmission rod 102 is in contact with the annular groove of the first pulley 103 and the second pulley 104; the first pulley 103 and the second pulley 104 are fixedly installed on the top of the air pipe 3.

[0038] The outer wall of the circular side of the wheels of the third pulley 106 and the fourth pulley 107 is provided with a circular groove.

[0039] The outer wall of the first pulley 103 and the second pulley 104 has an annular groove.

[0040] One end of the transmission rod 102 slides and contacts the inner wall of the second conical opening 301 at the top of the air pipe 3, and the other end of the transmission rod 102 slides and contacts the inner wall of the first conical opening 101 at the top of the water tank 1.

[0041] One end of the transmission rod 102 is fixedly connected to the float 2, and the float 2 is equipped with a counterweight 201.

[0042] The other end of the transmission rod 102 is fixedly connected to a permanent magnet 105, which is in contact with the inner wall of the air tube 3.

[0043] The transmission rod 102 is a U-shaped rod.

[0044] Trachea 3 is a rigid rubber tube, and argon gas is contained inside trachea 3.

[0045] An inflation valve 302 is provided at the bottom of the air tube 3, and an air release valve 303 is provided at the top of the air tube 3.

[0046] Water tank 1 is equipped with an inlet valve 5 at the top and an outlet valve 6 at the bottom.

[0047] Preferably, the total mass of the counterweight 201 and the float 2 is equal to the mass of the permanent magnet 105. The permanent magnet 105 is disposed on one side of the magnetic flip plate 4, so that when the permanent magnet 105 moves up and down, it can drive each magnetic particle in the magnetic flip plate 4 to rotate and tumble.

[0048] The permanent magnet 105 is a common magnet.

[0049] Drive rod 102 is manufactured by Shanghai Zhongji Composite Materials Co., Ltd., model number; made of carbon fiber reinforced polymer (CFRP).

[0050] The air tube 3 is a rigid rectangular rubber tube. The air tube 3 is filled with an inert gas - argon gas, which is denser than air, so it is not easy to leak out and protects the permanent magnet 105 from corrosion by water vapor or oxygen in the air in humid areas. The inner wall of the air tube 3 is coated with lubricating oil to facilitate the free sliding of the permanent magnet 105 up and down.

[0051] Trachet 3 was purchased from Shanghai Gongtao Ceramics Co., Ltd., model: alumina ceramic tube.

[0052] Water tank 1 is horizontally installed on the ground and fixedly connected to one side of fixed wall 7. The side wall of fixed wall 7 is perpendicular to the ground. An air pipe 3 is fixedly connected to the other side of fixed wall 7. The top of air pipe 3 is provided with a second conical opening 301.

[0053] The top and bottom side walls of the air tube 3 are fixedly connected to both ends of the magnetic flip plate 4. The side wall of the air tube 3 is fixedly connected to the scale 401. The scale 401 is installed on the side wall of the air tube 3 at the same height as the magnetic flip plate 4 to facilitate accurate reading of the liquid level.

[0054] The magnetic level gauge 4 was purchased from Dongtai Yuzhuo Automation Technology Co., Ltd. The model is magnetic level gauge 4, which contains several red and white flip columns.

[0055] A fixed pipe 8 is also installed at the first conical opening 101 of the water tank 1. A connecting pipe 801 is fixedly connected to the bottom of the fixed pipe 8. The fixed pipe 8 is connected to the atmosphere through the first conical opening 101, and to the interior of the water tank 1 through the connecting pipe 801. The inner diameter of the fixed pipe 8 is larger than that of the float 2. The float 2 is located inside the fixed pipe 8 and can float freely up and down within it. The connecting pipe 801 cannot exceed the inner wall of the fixed pipe 8, and several connecting pipes 801 can be installed.

[0056] The top of the water tank 1 is also equipped with an atmospheric pipe 9, which connects the water tank 1 to the atmosphere.

[0057] Installation method of scale 401 of the device:

[0058] Without adding water to water tank 1, the gas pipe 3 is filled with inert argon gas. The counterweight 201 will drive the transmission rod 102 to sink to the bottom inner wall of water tank 1. The reference zero line pointed to by the magnetic flip plate 4 is found. After aligning the reference zero line with the zero mark line of the scale 401, the scale 401 can be installed.

[0059] This patent pertains to a non-contact, antifreeze magnetic level gauge for outdoor water tanks used in winter.

[0060] The length of the transmission rod 102 is set according to the height of the water tank 1, ensuring that it can cover the range of liquid level changes within the water tank 1.

[0061] The permanent magnet 105 is made of magnets with strong magnetic properties and good stability.

[0062] The float 2 is installed inside the water tank 1 and is located inside the fixed tube 8. It can float up and down as the liquid level in the water tank 1 changes.

[0063] The flip posts of magnetic flip plate 4 are coated with different colors, such as red and white.

[0064] The first pulley 103, the second pulley 104, the third pulley 106, and the fourth pulley 107 are completely identical. The annular groove structure of the third pulley 106 and the fourth pulley 107 is shown below. Figure 3 The third pulley, model 106, can also be purchased from Nanjing Jiangning District Longcheng Hardware & Electrical Machinery Business Department Co., Ltd. as a 4-inch V-shaped guide rail wheel.

[0065] Working principle:

[0066] When the liquid level in water tank 1 changes, the float 2 inside water tank 1 moves up and down with the rise and fall of the liquid level. Since the float 2 drives the transmission rod 102 to move, the transmission rod 102 will synchronously drive the permanent magnet 105 to move up and down. The flip column will flip under the magnetic force of the permanent magnet 105, thereby displaying a color change to indicate the height of the liquid level.

[0067] Throughout the entire operation, the permanent magnet 105 does not need to come into direct contact with water. This further ensures that the level gauge will not freeze in low outdoor temperatures during winter, enabling stable and accurate level measurement.

Claims

1. A magnetic level gauge, comprising a water tank (1), characterized in that, The top of the water tank (1) is provided with a first conical opening (101). The top of the water tank (1) is also fixedly equipped with a third pulley (106) and a fourth pulley (107). The grooves of the third pulley (106) and the fourth pulley (107) are in close contact with the cylindrical sidewall of one end of the transmission rod (102) to prevent the transmission rod (102) from tilting. The cylindrical sidewall of the other end of the transmission rod (102) is in contact with the annular groove of the first pulley (103) and the second pulley (104); the first pulley (103) and the second pulley (104) are fixedly installed on the top of the air pipe (3).

2. The magnetic float level gauge according to claim 1, characterized in that, The outer wall of the circular side of the third pulley (106) and the fourth pulley (107) is provided with a circular groove.

3. A magnetic float level gauge according to claim 1, characterized in that, The first pulley (103) and the second pulley (104) have annular grooves on their outer walls.

4. A magnetic float level gauge according to claim 1, characterized in that, One end of the transmission rod (102) slides and contacts the inner wall of the second conical opening (301) at the top of the air pipe (3), and the other end of the transmission rod (102) slides and contacts the inner wall of the first conical opening (101) at the top of the water tank (1).

5. A magnetic float level gauge according to claim 1, characterized in that, One end of the transmission rod (102) is fixedly connected to the float (2), and the float (2) is equipped with a counterweight (201).

6. A magnetic float level gauge according to claim 1, characterized in that, The other end of the transmission rod (102) is fixedly connected to a permanent magnet (105), and the permanent magnet (105) is in contact with the inner wall of the air pipe (3).

7. A magnetic float level gauge according to claim 1, characterized in that, The transmission rod (102) is a U-shaped rod.

8. A magnetic float level gauge according to claim 1, characterized in that, The trachea (3) is a rigid rubber tube, and the trachea (3) is filled with argon gas.

9. A magnetic float level gauge according to claim 1, characterized in that, The bottom of the air pipe (3) is provided with an inflation valve (302), and the top of the air pipe (3) is provided with an air release valve (303).

10. A magnetic float level gauge according to claim 1, characterized in that, The water tank (1) is equipped with an inlet valve (5) at the top and an outlet valve (6) at the bottom.

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