CN216770734U - Liquid level sensor of silica gel shell - Google Patents

Abstract

The utility model discloses a liquid level sensor of a silica gel shell, wherein a hollow ball with a center hole and an iron block with the center hole are penetrated together by a connecting pipe, a mercury tilt switch fixed by pouring sealant is arranged in the connecting pipe, and a silica gel shell wraps the connecting pipe, the hollow ball with the center hole and the iron block with the center hole. Thus, the iron block in the silica gel plays the role of a heavy hammer, and when the ball body changes up and down along with the change of the liquid level, the height of one end with the iron block is kept unchanged, so that the mercury tilt switch is used for realizing the transmission of the liquid level signal. The liquid level sensor can resist high temperature and corrosion, is convenient to install and has high liquid level precision.

Description

Liquid level sensor of silica gel shell

Technical Field

The utility model belongs to a sensor for collecting liquid level signals, in particular to a liquid level sensor of a silica gel shell.

Background

The existing liquid level sensors are various, liquid pressure is transmitted into voltage or current signals, resistance value change is tested through liquid conductivity, a reed switch obtains a switch signal through a magnet, and liquid buoyancy and element device gravity are used for acquiring liquid level high and low signals.

In the market, a sensor for acquiring liquid level signals by utilizing liquid buoyancy and element gravity generally adopts a floating ball with a plastic shell, a small ball is arranged in the sensor, and a switching signal is given according to direction change caused by liquid level change. In order to ensure the moving direction of the floating ball, a heavy hammer is often connected to the connecting line.

The plastic floating ball is usually suitable for water with normal environmental temperature and cannot be suitable for liquid with high temperature, no toxicity and the like. The distance between the heavy hammers connected in series on the connecting line can directly influence the precision of water level control.

Disclosure of Invention

In order to solve the above problems, the present invention provides a novel liquid level sensor, which aims to expand the application range and improve the control precision.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a level sensor of silica gel casing, includes hollow ball that has the mesopore, has mesoporous iron plate, connecting pipe, mercury tilt switch, wire, casting glue, silica gel, its characterized in that: the mercury tilt switch is fixed in the connecting pipe by the pouring sealant, the iron block with the center hole and the hollow ball with the center hole are both connected in series on the connecting pipe, and the connecting pipe, the iron block with the center hole and the hollow ball with the center hole are wrapped by the silica gel.

Preferably, the hollow sphere with the central hole is made of steel.

Preferably, the hollow spheres with mesopores are organic with a density lower than that of water.

Preferably, the lead wires are connected to terminals of the mercury tilt switch in the connection tube through the silicone rubber.

The utility model has the beneficial effects that: realize the high temperature resistant, corrosion-resistant and sanitary problem of floater through the silica gel casing, place the iron plate in the silica gel, guarantee that the floater floats and sunken direction, realize water level signal's quick transmission through mercury slope switch, improve level sensor's precision.

Drawings

FIG. 1 is a specific embodiment of the present invention.

Wherein:

1. a silica gel shell;

2. hollow spheres with mesopores;

3. a connecting pipe;

4. a mercury tilt switch;

5. an iron block with a central hole;

6. pouring a sealant;

7. and (4) conducting wires.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, in the present embodiment, the mercury tilt switch 4 is fixed in the connection pipe 3 by the potting adhesive, the iron block 5 with the central hole and the hollow ball 2 with the central hole penetrate through the connection pipe 3, the silica gel shell 1 wraps the hollow ball 2 with the central hole, the iron block 5 with the central hole and the connection pipe 3, and the lead 7 penetrates through the silica gel shell 1 and the potting adhesive 6 to be connected to the connection terminal of the mercury tilt switch 4.

The utility model has the beneficial effects that: high temperature resistance, corrosion resistance, simple and convenient installation and high water level signal precision.

The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a level sensor of silica gel casing, includes hollow ball that has the mesopore, has mesoporous iron plate, connecting pipe, mercury tilt switch, wire, casting glue, silica gel, its characterized in that: the mercury tilt switch is fixed in the connecting pipe by the pouring sealant, the iron block with the center hole and the hollow ball with the center hole are both connected in series on the connecting pipe, and the connecting pipe, the iron block with the center hole and the hollow ball with the center hole are wrapped by the silica gel.

2. The liquid level sensor of a silicone shell of claim 1, wherein: the hollow ball with the middle hole is made of steel.

3. The liquid level sensor of a silicone housing as set forth in claim 1, wherein: hollow spheres with mesopores are organic substances with a density lower than that of water.

4. The liquid level sensor of a silicone shell of claim 1, wherein: the lead is connected to a terminal of the mercury tilt switch in the connecting tube through the silica gel.

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