Liquid level meter

Abstract

The invention discloses a liquid level meter, and belongs to the technical field of measuring instruments, the liquid level meter comprises a frame assembly, a display assembly, a magnetic component, a magnetic turning plate and a floater component, and the floater component floats on the surface of liquid and is configured to ascend and descend along with ascending and descending of the liquid level; and a conversion assembly. By arranging the liquid level meter composed of the frame assembly, the display assembly, the floater component and the conversion assembly, linkage of the floater component and the magnetic component is achieved through the conversion assembly, and therefore the liquid level height change reflected by the position change of the floater component is converted into the position height change of the magnetic component; and the height of the liquid level is read through the overturning of the magnetic overturning plate and the scales of the magnetic overturning plate, and the displacement ratio of the floater component to the magnetic component is greater than 1, so that the length of the magnetic overturning plate is shortened, the installation difficulty of the magnetic overturning plate is reduced, and meanwhile, the stability of the equipment is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of measuring instruments, and particularly relates to a liquid level gauge. Background Art

[0002] For scenarios such as buried containers or covered water tanks where side-mounted liquid level gauges cannot be installed, only top-mounted liquid level gauges can be used for relevant liquid level measurements. Currently, there are various types of top-mounted liquid level gauges, and the mainstream devices include hydrostatic liquid level gauges, float liquid level gauges, radar liquid level gauges, capacitive liquid level gauges, radio frequency admittance liquid level gauges, magnetostrictive liquid level gauges, servo liquid level gauges, and ultrasonic level gauges. Most of the above liquid level gauges can be configured with an in-situ liquid crystal display, and the real-time liquid level can be observed through the display data. However, such electronic display methods require considering the power supply problem, and the equipment cost is generally high, with poor economic applicability. The liquid level height is not intuitive enough to observe, and it can only be observed closely through the electronic display screen, which is inconvenient for inspection records and remote viewing. The magnetic flap liquid level gauge can complete the intuitive and eye-catching in-situ display of the container liquid level without an external power supply. The traditional magnetic flap liquid level gauge can be directly used to observe the liquid level height of the medium in various containers. Among various types of liquid level gauges, the prominent advantage of the magnetic flap liquid level gauge is that it can perform intuitive and eye-catching in-situ liquid level display. The liquid level gauge has a simple structure, does not require power supply, is easy to install and reliable, has little maintenance, is not blocked or leaked, and is widely used in the liquid level detection of containers such as tanks, troughs, and boxes in industries such as petroleum, chemical industry, power stations, pharmaceuticals, metallurgy, shipbuilding, and water / wastewater treatment. The magnetic flap liquid level gauge has two installation methods: side-mounted and top-mounted. In either method, a remote transmission device can be bundled, so that the liquid level gauge can display the liquid level locally and monitor the liquid level remotely. The magnetic flap liquid level gauge after bundling can be called a remote transmission type magnetic flap liquid level gauge. The magnetic display flap of the magnetic flap liquid level gauge has bright colors and has a more intuitive display of the relative relationship between the existing medium volume in the container and the total volume of the container. Therefore, the magnetic flap liquid level gauge is commonly used as a liquid level measurement device in scenarios such as buried containers or covered water tanks.

[0003] However, limited by its simple magnetic conduction mechanical structure, the length of the magnetic display flap of the top-mounted magnetic flap liquid level gauge is slightly longer than the height of the measured liquid level. Therefore, when the measured liquid level is relatively deep, the length of the magnetic display flap also increases accordingly, which is extremely likely to cause installation failure due to the limited upper space of the measured container. In extreme weather (such as strong winds), the flap may be deformed or broken, and even cause harm to personnel. Summary of the Invention

[0004] The purpose of the present invention is to provide a liquid level gauge to solve the problems of the existing flap type liquid level gauges in the use process as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A liquid level gauge, comprising:

[0006] A frame component, within which an installation area is defined;

[0007] A display component, assembled on the frame component, including a magnetic member and a magnetic flap, the magnetic flap being arranged in the vertical direction;

[0008] A float member, floating on the liquid surface and configured to rise and fall with the liquid level;

[0009] A transformation component, assembled within the installation area and used to connect the magnetic member and the float member, so that the magnetic member moves up and down with the rise and fall of the float member and drives part of the magnetic flap to rotate, and the displacement ratio between the float member and the magnetic member is greater than 1.

[0010] Preferably, the transformation component includes:

[0011] A transmission wheel set, including a first wheel body, a second wheel body and a belt, the first wheel body and the second wheel body being arranged at intervals in the vertical direction, the belt being configured as a transmission member between the first wheel body and the second wheel body, and the magnetic member being assembled on the belt;

[0012] A transformation wheel body, whose axis coincides with that of the second wheel body and is configured to rotate synchronously with the second wheel body, and the diameter of the transformation wheel body is greater than that of the second wheel body;

[0013] A rope body, wound around the transformation wheel body, and the free end of the rope body is connected to the float member.

[0014] Preferably, the displacement ratio between the float member and the magnetic member is the diameter ratio between the transformation wheel body and the second wheel body.

[0015] Preferably, the belt has a first part and a second part located on both sides of the first wheel body and the second wheel body, and the moving directions of the first part and the second part are opposite.

[0016] Preferably, the transformation component further includes:

[0017] A counterweight block, which is configured to balance the moment difference between the gravity of the magnetic member and the tension of the rope body.

[0018] Preferably, the counterweight block is assembled on the second part of the belt.

[0019] Preferably, the transformation component further includes a direction-changing wheel body, which is configured to be able to rotate around its own axis and is used to change the direction of the free end of the rope body.

[0020] Preferably, the direction-changing wheel body constitutes a U-shaped groove bearing.

[0021] Preferably, the frame member includes:

[0022] The riser pipe component, and the installation section is configured as a cylindrical section defined by the riser pipe component.

[0023] Preferably, a blind flange is assembled at the top end of the riser pipe component.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] In this application, a liquid level gauge composed of a frame assembly, a display assembly, a float component, and a transformation assembly is provided. Through the transformation assembly, the linkage between the float component and the magnetic component is realized, so that the change in the liquid level height reflected by the change in the position of the float component is converted into the change in the position height of the magnetic component. The reading of the liquid level height is realized through the flipping of the magnetic flap and the scale of the magnetic flap. Moreover, the displacement ratio of the float component to the magnetic component is greater than 1, thereby realizing the shortening of the length of the magnetic flap, reducing the installation difficulty of the magnetic flap and improving the stability of the equipment at the same time. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of the liquid level gauge;

[0027] Figure 2 It is a schematic diagram of the structure of the transformation assembly Figure 1 ;

[0028] Figure 3 It is a schematic diagram of the structure of the transformation assembly Figure 2 .

[0029] In the figure:

[0030] 100, magnetic component; 101, magnetic flap;

[0031] 200, transmission wheel set; 201, first wheel body; 202, second wheel body; 203, belt body; 203a, first part; 203b, second part; 204, transformation wheel body; 205, counterweight body; 206, deflection wheel body;

[0032] 300, float component; 301, rope body;

[0033] 400, riser pipe component; 401, installation section; 402, blind flange; 403, sheath. Detailed Embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] A liquid level gauge (hereinafter referred to as the liquid level gauge), the main body of which is composed of a frame assembly, a display assembly, a conversion assembly and a lifting assembly. The frame assembly defines an installation area 401 for accommodating the display assembly and the conversion assembly, and the frame assembly is configured as an installation carrier for the display assembly and the conversion assembly, that is, the display assembly and the conversion assembly are assembled on the above-mentioned frame assembly to form the main body structure of the liquid level gauge. In some embodiments, referring to Figures 1 - 3 , the above-mentioned display assembly includes a magnetic member 100 and a magnetic flap 101 used in cooperation with the magnetic member 100. The magnetic flap 101 extends in the vertical direction, and the magnetic flap 101 at the same height as the magnetic member 100 will be flipped under the action of the magnetic member 100 to indicate the height position of the magnetic member 100, and the height position is read through the scale line on the magnetic flap 101. Correspondingly, the above-mentioned lifting assembly includes a float member 300, which floats on the liquid surface and is configured to rise and fall with the liquid level. The above-mentioned conversion assembly is used to connect the magnetic member 100 and the float member 300, so that the magnetic member 100 can rise and fall with the rise and fall of the float member 300, and then convert the change in the liquid level height reflected by the position change of the float member 300 into the position height change of the magnetic member 100, and realize the reading of the liquid level height through the flipping of the magnetic flap 101 and the scale of the magnetic flap 101. At the same time, the displacement ratio of the above-mentioned float member 300 and the magnetic member 100 is greater than 1, so that the liquid level height can be reduced and displayed, and the size of the magnetic flap 101 in the liquid level gauge can be reduced, while reducing the installation conditions of the liquid level gauge and improving the stability of the liquid level gauge.

[0036] In some embodiments, the above-mentioned frame assembly includes a riser member 400, the internal area of which is the above-mentioned installation area 401, that is, the above-mentioned installation area 401 is a cylindrical area defined by the riser member 400. At the same time, a flange blind plate 502 is provided at the top of the riser member 400 for realizing the assembly of the riser components, that is, the liquid level gauge is configured as a top-mounted liquid level gauge. Correspondingly, the installation area 401 defined therein extends in the vertical direction. Further, a sheath 403 is provided on the outer wall of a part of the riser member 400 for protecting the riser member 400.

[0037] In some embodiments, referring to Figure 2 and 3, the main body of the above transformation component is composed of a transmission pulley group 200 and a transformation pulley body 204. Among them, the transmission pulley group 200 includes a first pulley body 201 and a second pulley body 202. The first pulley body 201 and the second pulley body 202 are arranged at intervals in the vertical direction. Correspondingly, the above belt body 203 is wrapped outside the first pulley body 201 and the second pulley body 202 and is arranged in a ring shape. The rotation of a single pulley body (the first pulley body 201 or the second pulley body 202) can be transmitted to the other pulley body through the belt body 203, so that the first pulley body 201 and the second pulley body 202 can rotate synchronously. In some embodiments, the first pulley body 201 and the second pulley body 202 have the same specifications. Exemplarily, the above transmission pulley group 200 is configured as a synchronous pulley group, that is, both the first pulley body 201 and the second pulley body 202 are configured as synchronous pulleys. Correspondingly, the belt body 203 is configured as a synchronous belt, so that the transformation component can operate more smoothly; Back to Figure 2 and 3 , continue to describe the transmission pulley group 200. The above belt body 203 is separated into two parts (subsequently referred to as the first part 203a and the second part 203b) by the first pulley body 201 and the second pulley body 202. The first part 203a and the second part 203b are respectively located on both sides of the pulley body (the first pulley body 201 and the second pulley body 202), and the moving directions of the first part 203a and the second part 203b are opposite, in order to Figure 2 illustrated by the arrows in. At this time, the belt body 203 in the transmission pulley group 200 runs in the clockwise direction. Correspondingly, the first part 203a moves upward and the second part 203b moves downward; The above magnetic member 100 is assembled at the position of the first part 203a of the belt body 203,

[0038] Refer to Figure 2 and 3 , continue to describe the transformation component. The axis of the above transformation pulley body 204 coincides with the axis of the second pulley body 202, that is, the transformation pulley body 204 and the second pulley body 202 are configured to rotate synchronously, and the outer diameter of the above transformation pulley body 204 is larger than the outer diameter of the second pulley body 202. At the same time, the above transformation component further includes a rope body 301. The rope body 301 is wound around the above transformation pulley body 204, and the free end of the rope body 301 is connected to the above floating body member and can move with the lifting and lowering of the floating body member. At the same time, the winding and unwinding of the rope body 301 accompany the rotation of the transformation pulley body 204,

[0039] In some embodiments, refer to Figure 2 and 3, The above transformation component further includes a counterweight block. The counterweight block 205 is configured as a balance member of the liquid level gauge, enabling the float member 300 to float on the liquid surface and maintain balance during the measurement process of the liquid level gauge, without sinking due to its own gravity. That is, the counterweight block 205 can balance the torque difference between the magnetic member and the tension of the rope 301 (i.e., the difference between the gravity and buoyancy of the float member 300). Correspondingly, the weight of the counterweight block 205 can be calculated based on the torque difference between the magnetic member and the tension of the rope 301 (i.e., the difference between the gravity and buoyancy of the float member 300). In some examples, the above counterweight block 205 is assembled on the second part 203b of the belt body 203. That is, the magnetic member 100 and the counterweight block 205 are respectively located on both sides of the wheel body (the first wheel body 201 and the second wheel body 202). At this time, the calculation formula for the weight of the counterweight block is as follows:

[0040]

[0041] Where:

[0042] G: Self-weight of the counterweight block 205

[0043] G 浮子 : Self-weight of the float member 300

[0044] V: Volume of the float member 300 sinking into the water (generally taking 1 / 2 of the float volume)

[0045] r: Radius of the second wheel body 202

[0046] R: Radius of the transformation wheel body 204

[0047] G 磁 : Self-weight of the magnetic member 100

[0048] In some embodiments, the above transformation component further includes a deflector wheel body 206. The deflector wheel body 206 is configured to be able to rotate around its own axis and is configured to realize the deflection of the free end of the rope 301. In some examples, the above deflector wheel body 206 is configured as a U-shaped groove bearing. The U-shaped groove bearing defines the position of the rope 301 through the U-shaped groove and realizes rotation through the bearing.

[0049] Taking the measurement of the liquid level height of an underground water tank as an example for illustration. In the example, the depth of the underground water tank is 5m:

[0050] If a conventional top-mounted magnetic flap liquid level gauge is used, the height of the magnetic flap 101 on the top of the tank is at least 5 meters, then the height of the roof is also at least 5 meters, resulting in a large waste of space; if the house has been built and the height does not meet the requirements, a conventional top-mounted magnetic flap liquid level gauge cannot be installed;

[0051] When this application is selected, the linkage between the float member 300 and the magnetic member 100 is realized by means of a transformation component, and the displacement ratio of the float member 300 to the magnetic member 100 is greater than 1, that is, the displacement of the magnetic member 100 is reduced by n times compared with the displacement of the magnetic member in a conventional liquid level gauge. If calculated according to a reduction of 1 time (i.e., n = 1), the length of the magnetic flap 101 is only about 2.5 meters, and the height of the house only needs to be 3 meters to install a top-mounted magnetic flap liquid level gauge, greatly reducing the length of the magnetic flap 101 on the tank top and reducing the conditions required for installation on the tank top. If the buried water tank is installed outdoors, that is, the factor of limited installation space does not need to be considered, and the length of the magnetic flap 101 is shortened from 5 meters to 2.5 meters, which can further reduce the damage caused to the equipment by extreme weather such as strong winds and increase the stability of the equipment.

[0052] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0053] In the description of the present invention, the description with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine the different embodiments or examples described in the present invention and the features of different embodiments or examples.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liquid level gauge, characterized in that: including a frame component, within which an installation area is defined; a display component, assembled on the frame component, including a magnetic member and a magnetic flap, the magnetic flap being arranged in the vertical direction; a float member, floating on the liquid surface and configured to move up and down with the liquid level; a conversion component, assembled within the installation area and used to connect the magnetic member and the float member, so that the magnetic member moves up and down with the rise and fall of the float member, and drives partial rotation of the magnetic flap, and the displacement ratio between the float member and the magnetic member is greater than 1.

2. The liquid level gauge according to claim 1, characterized in that: The conversion component includes: a transmission wheel set, including a first wheel body, a second wheel body and a belt body, the first wheel body and the second wheel body being arranged at intervals in the vertical direction, the belt body being configured as a transmission member between the first wheel body and the second wheel body, and the magnetic member being assembled on the belt body; a conversion wheel body, whose axis coincides with that of the second wheel body and is configured to rotate synchronously with the second wheel body, and the diameter of the conversion wheel body is greater than that of the second wheel body; a rope body, wound around the conversion wheel body, and the free end of the rope body is connected to the float member.

3. A liquid level gauge according to claim 2, characterized in that: The displacement ratio between the float member and the magnetic member is the diameter ratio between the conversion wheel body and the second wheel body.

4. A liquid level gauge according to claim 2, characterized in that: The belt body has a first part and a second part located on both sides of the first wheel body and the second wheel body, and the moving directions of the first part and the second part are opposite.

5. The liquid level gauge according to claim 4, characterized in that: The conversion component further includes: a counterweight block, configured to balance the moment difference between the gravity of the magnetic member and the tension of the rope body.

6. The liquid level gauge according to claim 5, wherein: The counterweight block is assembled on the second part of the belt body.

7. A liquid level gauge according to claim 2, characterized in that: The conversion component further includes a deflection wheel body, configured to be able to rotate around its own axis and used to realize the deflection of the free end of the rope body.

8. A liquid level gauge according to claim 7, characterized in that: The deflection wheel body constitutes a U-shaped groove bearing.

9. The liquid level gauge according to claim 1, wherein: The frame member includes: a riser member, the installation area being configured as a cylindrical area defined by the riser member.

10. A liquid level gauge according to claim 9, characterized in that: A flange blind plate is assembled at the top of the riser member.

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