CN215178036U

CN215178036U - Magnetic sensitive resistance liquid level meter

Info

Publication number: CN215178036U
Application number: CN202121195455.5U
Authority: CN
Inventors: 余红辉; 曹春雷
Original assignee: Jiangsu Wotai Metallurgical Equipment Co ltd
Current assignee: Jiangsu Wotai Metallurgical Equipment Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-14
Anticipated expiration: 2031-05-31

Abstract

The utility model relates to the technical field of liquid level meters, in particular to a magnetic resistance liquid level meter; comprises a sealed shell, a liquid inlet and a liquid outlet, wherein the sealed shell is provided with an opening, and the liquid enters the sealed shell from the opening; the magnetic float is placed inside the sealed shell and floats on the liquid; the inside of the magnetic float is provided with a magnet; the plurality of luminous bodies are fixedly arranged on the sealed shell at equal intervals along the vertical direction and are electrically connected with the power supply; the light emitting part of the luminous body extends to the outer side of the sealed shell; and the magnetoresistors are fixedly arranged on the sealed shell, and each magnetoresistor is electrically connected with one corresponding luminous body in parallel. The utility model aims at providing a new magnetic resistance level gauge to the defect that exists among the prior art, improving the degree of accuracy of level gauge, make things convenient for personnel to carry out the observation of liquid level under dim environment simultaneously.

Description

Magnetic sensitive resistance liquid level meter

Technical Field

The utility model relates to a level gauge technical field especially relates to magnetic resistance level gauge.

Background

A level gauge is a device for displaying the level of a liquid. The existing liquid level meter is generally shown in fig. 1, a floating magnet 01 drives a rotor 02 to turn over to display the liquid level, and the rotor 02 and a panel are abraded after long-time use, so that the rotor 02 cannot rotate, and the device cannot accurately display the liquid level height; meanwhile, for a liquid level meter in a dark environment, a person is difficult to accurately observe the liquid level height.

In view of the above problems, the designer designs a new magnetic-sensing resistance liquid level meter based on practical experience and professional knowledge which are abundant for years in engineering application of such products and by cooperating with the application of scholars and principles, so that the accuracy of the liquid level meter is improved, and meanwhile, the liquid level can be conveniently observed by personnel in a dark environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a new magnetic resistance level gauge to the defect that exists among the prior art, carry out the demonstration of liquid level height through using the luminous body, improve the degree of accuracy of level gauge, make things convenient for personnel to carry out the observation of liquid level under dim environment simultaneously.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the method comprises the following steps: the sealing shell is provided with an opening, and liquid enters the sealing shell from the opening;

a magnetic float disposed inside the sealed housing and floating on the liquid; a magnet is arranged inside the magnetic floater;

the plurality of luminous bodies are fixedly arranged on the sealed shell at equal intervals along the vertical direction and are electrically connected with a power supply; the light-emitting part of the luminous body extends to the outer side of the sealed shell;

the magnetic sensing resistors are fixedly arranged on the sealed shell, and each magnetic sensing resistor is electrically connected with one corresponding luminous body in parallel.

Further, the center height of the magnet is flush with the liquid level height of the liquid.

Further, each of the magnetoresistors has the same height as a corresponding one of the luminous bodies.

Further, the center of the magnet is arranged on the central axis of the magnetic float.

Furthermore, the upper end and the lower end of the magnetic floater are of curved surface structures.

Furthermore, the outer side surface of the middle section of the magnetic float is of a vertical cylindrical structure.

Furthermore, the luminous body sealing structure further comprises a transparent cover plate which is fixedly arranged on the outer side face of the sealing shell and covers the luminous body.

Further, still include the glue film, transparent cover plate with sealed shell lateral surface passes through the glue film carries out fixed connection.

Further, the device also comprises a containing shell and a hoop; the luminous body and the magnetic resistor are both fixedly arranged in the containing shell, and the luminous part of the luminous body extends to the outer side of the containing shell; the accommodating shell is fixedly connected with the hoop; the hoop is fixedly sleeved outside the sealing shell.

Through the technical scheme of the utility model, can realize following technological effect:

the magneto-resistor level gauge of design changes the resistance value of the magneto-resistor of corresponding height through the magnet of magnetism float, makes the luminous body of corresponding height luminous to improve the degree of accuracy of level gauge, make things convenient for personnel to carry out the observation of liquid level under dim environment simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a prior art liquid level gauge in the background of the present invention;

FIG. 2 is a schematic structural view of a magnetic resistance level gauge according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the magnetic resistance level gauge according to the embodiment of the present invention; fig. 4 is a schematic structural diagram of the hoop in the embodiment of the present invention;

reference numerals: magnet 01, rotor 02, sealed housing 1, magnetic float 2, magnet 21, luminous body 3, magneto resistor 4, transparent cover plate 5, glue film 6, storage case 7, staple bolt 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be noted that the orientations and positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

A magneto-resistive level gauge, as shown in fig. 2, comprising: the sealing shell 1 is provided with an opening, and liquid enters the sealing shell 1 from the opening; a magnetic float 2 which is placed inside the sealed housing 1 and floats on the liquid; the magnet 21 is arranged in the magnetic float 2; the plurality of luminous bodies 3 are fixedly arranged on the sealed shell 1 at equal intervals along the vertical direction and are electrically connected with a power supply; the light emitting part of the luminous body 3 extends to the outer side of the sealed shell 1; the magnetic sensing resistors 4 are fixedly arranged on the sealed shell 1, and each magnetic sensing resistor 4 is electrically connected with one corresponding luminous body 3 in parallel.

As shown in fig. 3, the working principle of the present application is as follows: normally, the resistance value of the magnetic resistor 4 is small, and when the magnetic resistor 4 is in a magnetic field, the resistance value becomes large; the magnetic resistor 4 is connected in parallel with the luminous body 3, and the luminous body 3 can be short-circuited due to the fact that the resistance value of the magnetic resistor 4 is small under normal conditions, and the luminous body 3 cannot emit light; when the liquid drives the magnetic float 2 to rise, the magnetic field generated by the magnet 21 in the magnetic float 2 can influence the magnetic sensitive resistor 4 with the corresponding height, so that the resistance value of the magnetic sensitive resistor 4 with the height is increased, the voltage at the two ends of the magnetic sensitive resistor 4 with the height is increased, and finally the luminous body 3 connected with the magnetic sensitive resistor 4 with the height in parallel is luminous, thereby displaying the liquid level height of the liquid, effectively improving the accuracy of the liquid level meter, and simultaneously facilitating the observation of the liquid level by personnel in a dark environment.

In order to make the liquid level height of the liquid more visually displayed, as shown in fig. 2, the center height of the magnet 21 is flush with the liquid level height of the liquid; each of the magnetoresistors 4 is at the same height as a corresponding one of the luminous bodies 3. With the structure, the height of the luminous body 3 is the liquid level height of the liquid.

In order to avoid the magnetic float 2 from being skewed, as shown in fig. 2, the center of the magnet 21 is disposed on the central axis of the magnetic float 2, so that the magnetic float 2 as a whole can keep a good balance.

In order to keep the magnetic float 2 in a vertical state during the moving process, as shown in fig. 2, the upper end and the lower end of the magnetic float 2 are curved surfaces, so that the rigid collision between the magnetic float 2 and the inner wall of the sealed shell 1 can be effectively reduced, and a certain adjusting effect can be generated on the magnetic float 2. The lateral surface of the middle section of the magnetic float 2 is of a vertical cylindrical structure and is matched with the sealing shell 1, so that the magnetic float 2 can be guided.

In order to avoid collision between foreign objects and the light emitting body 3, as shown in fig. 2, the light emitting body protection device further includes a transparent cover plate 5 fixedly disposed on the outer side surface of the sealing housing 1 and covering the light emitting body 3 to protect the light emitting body 3 without affecting the observation of people.

In order to avoid water entering the circuit to influence the normal operation of the circuit, as shown in fig. 2, the waterproof sealing cover plate further comprises a glue layer 6, the transparent cover plate 5 is fixedly connected with the outer side surface of the sealing shell 1 through the glue layer 6, the glue layer 6 can completely fill the gap between the transparent cover plate 5 and the outer side surface of the sealing shell 1, and the water can be effectively prevented from entering the waterproof sealing cover plate.

As a preferable installation method of the luminous body 3 and the magnetic resistor 4, as shown in fig. 2 and 4, the luminous body further comprises a storage case 7 and an anchor ear 8; the luminous body 3 and the magnetic resistor 4 are both fixedly arranged in the containing shell 7, and the luminous part of the luminous body 3 extends to the outer side of the containing shell 7; the containing shell 7 is fixedly connected with the hoop 8; the anchor ear 8 is fixedly sleeved outside the sealing shell 1. Preferably, a luminous body 3 and a magnetic resistor 4 are arranged in a containing case 7 to form a module, and a user can select the number of the modules according to the requirement and then assemble the modules. Staple bolt 8 is prior art, can make the diameter of staple bolt 8 enlarge or reduce through the screw rod on the rotatory staple bolt 8, makes things convenient for the installation of above-mentioned module to can fix more steadily on the comparatively smooth lateral surface of seal shell 1.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The magnetic resistance liquid level meter is characterized by comprising

The sealing device comprises a sealing shell (1) and a liquid outlet, wherein the sealing shell (1) is provided with an opening, and liquid enters the sealing shell (1) from the opening;

a magnetic float (2) which is placed inside the sealed shell (1) and floats on the liquid; a magnet (21) is arranged in the magnetic float (2);

the plurality of luminous bodies (3) are fixedly arranged on the sealed shell (1) at equal intervals along the vertical direction and are electrically connected with a power supply; the light-emitting part of the light-emitting body (3) extends to the outer side of the sealed shell (1);

the magnetic sensing resistors (4) are fixedly arranged on the sealed shell (1), and each magnetic sensing resistor (4) is electrically connected with one corresponding luminous body (3) in parallel.

2. A magnetoresistor liquid level gauge according to claim 1, characterized in that the magnet (21) has a central height which is level with the level of the liquid.

3. The magnetoresistor liquid level gauge according to claim 1, wherein each of the magnetoresistors (4) is at the same height as a corresponding one of the luminophores (3).

4. A magnetoresistor liquid level gauge according to claim 1, characterized in that the center of the magnet (21) is arranged on the central axis of the magnetic float (2).

5. The magnetic resistance liquid level meter according to claim 1, characterized in that the upper and lower ends of the magnetic float (2) are curved surface structures.

6. The magnetic resistance liquid level meter according to claim 1, characterized in that the outer side of the middle section of the magnetic float (2) is a cylindrical structure in the vertical direction.

7. The magnetoresistor liquid level gauge according to claim 1, further comprising a transparent cover plate (5) fixedly disposed on an outer side surface of the sealed housing (1) and covering the light emitter (3).

8. The magnetoresistor liquid level gauge according to claim 7, further comprising an adhesive layer (6), wherein the transparent cover plate (5) is fixedly connected with the outer side surface of the sealed shell (1) through the adhesive layer (6).

9. The magnetoresistor liquid level gauge according to claim 1, further comprising a receiving case (7) and a hoop (8); the luminous body (3) and the magnetic resistor (4) are fixedly arranged in the containing shell (7), and the luminous part of the luminous body (3) extends to the outer side of the containing shell (7); the accommodating shell (7) is fixedly connected with the hoop (8); the anchor ear (8) is fixedly sleeved outside the sealing shell (1).