CN215178031U - Float liquid level meter - Google Patents

Abstract

The utility model discloses a flotation pontoon level gauge, including the level gauge main part, the level gauge main part includes liquid level probe, waterproof wire and terminal box, the bottom threaded connection of liquid level probe has the bottom, be equipped with all around of bottom and advance greatly and press the hole, the lower fixed surface of closing plate has the measuring unit, wire joint and liquid level probe's top threaded connection is passed through to the bottom of waterproof wire, the top of waterproof wire is connected with the terminal box, one side electric connection of display screen has the circuit board, one side electric connection of circuit board has binding post. This flotation pontoon level gauge simple structure, the modern design can measure the static pressure of the liquid that awaits measuring fast accurately, and then converts the static pressure information into the concrete degree of depth information of the liquid that awaits measuring, has improved measurement accuracy greatly, can measure the height of liquid level probe to the liquid level in directly dropping into the liquid that awaits measuring with the liquid level probe, and it is very convenient to use.

Description

Float liquid level meter

Technical Field

The utility model belongs to the technical field of the level gauge, concretely relates to flotation pontoon level gauge.

Background

The height of the liquid medium in the container is called the liquid level, and the instrument for measuring the liquid level is called a liquid level meter. The liquid level meter is one of level meters. The type of the liquid level meter comprises a tuning fork vibration type, a magnetic suspension type, a pressure type, ultrasonic waves, sonar waves, a magnetic turning plate, radar and the like. The traditional float level meter is a level measuring instrument designed according to Archimedes' law and magnetic coupling principle, and the instrument can be used for measuring liquid level, interface level and density and is responsible for outputting upper and lower limit alarm signals. The liquid level gauge is specially used for measuring the liquid level in a pressure container and consists of four basic parts, namely a buoy, a spring, a magnetic steel chamber and an indicator. However, the traditional float level meter also has the defects of low measurement precision, large volume, inconvenient use and the like.

Disclosure of Invention

An object of the utility model is to provide a flotation pontoon level gauge to solve traditional flotation pontoon level gauge's measurement accuracy low, bulky and use inconvenient problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flotation pontoon level gauge, includes the level gauge main part, the level gauge main part includes liquid level probe, waterproof wire and terminal box, the bottom threaded connection of liquid level probe has the bottom, be equipped with big pressure inlet hole around the bottom, the medial surface on liquid level probe top is fixed with the closing plate, the lower fixed surface of closing plate has the measuring unit, the top threaded connection of wire joint and liquid level probe is passed through to the bottom of waterproof wire, the top of waterproof wire is connected with the terminal box, one side of terminal box is equipped with the display screen, one side electric connection of display screen has the circuit board, one side electric connection of circuit board has binding post, be equipped with the lead wire in the waterproof wire, the both ends of lead wire respectively with measuring unit and circuit board electric connection.

Preferably, the liquid level probe is of a columnar cavity structure, the liquid level probe is made of anticorrosive stainless steel, and a water inlet cavity is formed between the sealing plate and the bottom cover in the horizontal direction.

Preferably, the measuring unit adopts a diffused silicon piezoresistive pressure sensor.

Preferably, the waterproof wire is made of polyurethane, a through hole matched with the waterproof wire is formed in the position, corresponding to the measuring unit, of the sealing plate, and the length of the waterproof wire is not less than 30 m.

Preferably, the material of terminal box is low copper aluminum alloy, the equal threaded connection in both ends of terminal box has the installation lid, be close to display screen one side the center department of installation lid is equipped with display screen size assorted transparent plastic board, what the display screen adopted is LCD liquid crystal display.

Preferably, the bottom cover is a combined structure of a cylinder and a circular truncated cone, the number of the large pressure inlet holes is four, the four large pressure inlet holes are equally arranged on the inclined surface of the bottom cover, and the diameters of the four large pressure inlet holes are 3-4 mm.

The utility model discloses a technological effect and advantage: this flotation pontoon level gauge simple structure, the modern design, through setting up the measuring unit, lead wire and circuit board, can measure the static pressure of the liquid that awaits measuring fast accurately, and then convert the static pressure information into the concrete degree of depth information of the liquid that awaits measuring, the measurement accuracy is greatly improved, be favorable to reducing the volume of liquid level probe simultaneously, and then reduce the volume of level gauge main part, through setting up the liquid level probe, waterproof wire and terminal box, can measure the height of liquid level probe to the liquid level in directly dropping into the liquid that awaits measuring with the liquid level probe, and is very convenient to use.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a right side view of the present invention;

FIG. 3 is a vertical cross-sectional view of the liquid level probe of the present invention;

fig. 4 is a schematic diagram of the connection between the utility model and the ammeter;

fig. 5 is a schematic diagram of the connection between the present invention and the voltmeter.

In the figure: 100. a gauge body; 1. a liquid level probe; 11. a bottom cover; 12. a sealing plate; 13. a water inlet cavity; 14. a measuring unit; 111. a large pressure inlet hole; 2. a waterproof wire; 21. a wire connection; 22. a lead wire; 3. a junction box; 31. a display screen; 32. a circuit board; 33. a wiring terminal; 34. and (6) installing a cover.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a float level meter as shown in the figure, which comprises a level meter main body 100, the liquid level meter main body 100 comprises a liquid level probe 1, a waterproof wire 2 and a junction box 3, the bottom end of the liquid level probe 1 is connected with a bottom cover 11 in a threaded manner, the periphery of the bottom cover 11 is provided with a large pressure inlet hole 111, the inner side surface of the top end of the liquid level probe 1 is fixed with a sealing plate 12, the lower surface of the sealing plate 12 is fixed with a measuring unit 14, the bottom end of the waterproof conducting wire 2 is connected with the top of the liquid level probe 1 through a conducting wire joint 21 in a threaded manner, the top end of the waterproof wire 2 is connected with a junction box 3, one side of the junction box 3 is provided with a display screen 31, one side of the display screen 31 is electrically connected with a circuit board 32, one side of the circuit board 32 is electrically connected with a wiring terminal 33, a lead 22 is arranged in the waterproof wire 2, and two ends of the lead 22 are respectively electrically connected with the measuring unit 14 and the circuit board 32.

In addition, liquid level probe 1 is the column cavity structure, liquid level probe 1's material is anticorrosive stainless steel, closing plate 12 horizontal direction set up and with the bottom 11 between form intake antrum 13, make things convenient for liquid level probe 1 to sink into the liquid that awaits measuring, have better corrosion resistance simultaneously, be favorable to increase of service life. The measuring unit 14 adopts a diffused silicon piezoresistive pressure sensor, can accurately measure the hydrostatic pressure which is in direct proportion to the liquid level depth, converts the hydrostatic pressure into a standard signal through a signal conditioning circuit, and outputs the standard signal to establish the linear corresponding relation between an output signal and the liquid depth, so as to realize the measurement of the liquid depth. The material of waterproof wire 2 is polyurethane, the department of correspondence with measuring unit 14 on the closing plate 12 is equipped with waterproof wire 2 assorted through-hole, waterproof wire 2's length is not less than 30 meters, has better waterproof performance, can effectively protect lead wire 22 not to wet, makes things convenient for lead wire 22 and measuring unit 14 electric connection, can measure darker water level simultaneously.

It is worth mentioning that the material of terminal box 3 is low copper aluminum alloy, the equal threaded connection in both ends of terminal box 3 has installation lid 34, is close to display screen 31 one side the center department of installation lid 34 is equipped with 31 size assorted transparent plastic boards of display screen, what display screen 31 adopted is LCD liquid crystal display, and installation, maintenance are very convenient, conveniently observe the data that show in real time on the display screen 31 simultaneously. The bottom cover 11 is the integrated configuration of cylinder and round platform, big pressure inlet hole 111 is equipped with four altogether, four big pressure inlet hole 111 divides equally to set up on the inclined plane of bottom cover 11, four the diameter of big pressure inlet hole 111 is 3 ~ 4 millimeters, makes things convenient for the rapid water intake in intake antrum 13, and then makes liquid level probe 1 sink into the liquid bottom that awaits measuring, still has better anti-clogging ability simultaneously.

The working principle is as follows: when the buoy liquid level meter is used, the liquid level probe 1 is directly thrown into liquid to be measured, the liquid to be measured enters the water inlet cavity 13 through the large pressure inlet hole 111, the liquid level probe 1 sinks into the bottom end of the liquid to be measured at the moment, meanwhile, the measuring unit 14 is in contact with the liquid to be measured and measures the static pressure of the liquid, then, the measuring unit 14 transmits static pressure information to the circuit board 32 through the lead, and the circuit board 32 converts the static pressure information into specific liquid level depth after analyzing and processing the static pressure information and displays the specific liquid level depth through the display screen 31.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. A float level gauge comprising a gauge body (100), characterized in that: the liquid level meter comprises a liquid level probe body (100), a waterproof wire (2) and a junction box (3), wherein the bottom end of the liquid level probe body (1) is connected with a bottom cover (11) in a threaded mode, large pressure inlet holes (111) are formed in the periphery of the bottom cover (11), a sealing plate (12) is fixed on the inner side face of the top end of the liquid level probe body (1), a measuring unit (14) is fixed on the lower surface of the sealing plate (12), the bottom end of the waterproof wire (2) is connected with the top of the liquid level probe body (1) in a threaded mode through a wire connector (21), the top end of the waterproof wire (2) is connected with the junction box (3), a display screen (31) is arranged on one side of the junction box (3), a circuit board (32) is electrically connected to one side of the display screen (31), a wiring terminal (33) is electrically connected to one side of the circuit board (32), and a lead (22) is arranged in the waterproof wire (2), two ends of the lead (22) are respectively and electrically connected with the measuring unit (14) and the circuit board (32).

2. A float level gauge as claimed in claim 1, wherein: the liquid level probe (1) is of a columnar cavity structure, the liquid level probe (1) is made of anticorrosive stainless steel, and a water inlet cavity (13) is formed between the sealing plate (12) and the bottom cover (11) in the horizontal direction.

3. A float level gauge as claimed in claim 1, wherein: the measuring unit (14) adopts a diffused silicon piezoresistive pressure sensor.

4. A float level gauge as claimed in claim 1, wherein: the waterproof conducting wire (2) is made of polyurethane, a through hole matched with the waterproof conducting wire (2) is formed in the position, corresponding to the measuring unit (14), of the sealing plate (12), and the length of the waterproof conducting wire (2) is not less than 30 meters.

5. A float level gauge as claimed in claim 1, wherein: the material of terminal box (3) is low copper aluminum alloy, the equal threaded connection in both ends of terminal box (3) has installation lid (34), is close to display screen (31) one side the center department of installation lid (34) is equipped with display screen (31) size assorted transparent plastic board, what display screen (31) adopted is LCD liquid crystal display.

6. A float level gauge as claimed in claim 1, wherein: the bottom cover (11) is of a combined structure of a cylinder and a circular truncated cone, the number of the large pressure inlet holes (111) is four, the four large pressure inlet holes (111) are equally arranged on the inclined plane of the bottom cover (11), and the diameters of the four large pressure inlet holes (111) are 3-4 mm.

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