A paint level detection device

Abstract

A paint level detection device includes a paint tank, a float, a guide rod, a contact switch, an air inlet pipe, a signal amplifier, an air outlet pipe, and a pneumatic-electric converter. The float is positioned on the paint level surface of the tank, and the contact switch is located on the top of the tank. The float is connected to the contact switch via the guide rod. A signal amplifier is located on one side of the contact switch, and the contact switch has a float level contact. An air inlet pipe is located at one end of the signal amplifier, and an air outlet pipe is located at the other end, connected to the pneumatic-electric converter. This invention can effectively detect changes in paint level and is applicable to various liquid media, including corrosive and high-temperature liquids. The pneumatic conversion is suitable for flammable and explosive environments, ensuring safe and reliable detection.

Description

Technical Field

[0001] This utility model relates to the field of liquid level measurement technology, and in particular to a coating liquid level detection device. Background Technology

[0002] The industrial sector has an urgent need for high-precision, high-reliability liquid level monitoring, especially in scenarios involving remote monitoring, automated control, and harsh working environments. Float-type liquid level devices are liquid level measurement equipment based on Archimedes' principle of buoyancy and mechanical displacement sensing technology. The float moves up and down with changes in the liquid level due to buoyancy, which in turn causes a change in the electrical signal of a connected sensor. This device typically uses magnetoelectric signal conversion; however, in special painting environments containing magnetic particles, the magnetic signal is easily interfered with, thus reducing the sensor's sensitivity and reliability. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a paint level detection device to solve the problems in the background art mentioned above.

[0004] The technical problem solved by this utility model is achieved by the following technical solution:

[0005] A paint level detection device includes a paint tank, a float, a guide rod, a contact switch, an air inlet pipe, a signal amplifier, an air outlet pipe, and a gas-electric converter. The float is positioned on the surface of the paint inlet, and the contact switch is located on the top of the paint tank. The float is connected to the contact switch via the guide rod. A signal amplifier is located on one side of the contact switch, and a float level contact is provided on the contact switch. An air inlet pipe is located at one end of the signal amplifier, and an air outlet pipe is located at the other end of the signal amplifier. The air outlet pipe is connected to the gas-electric converter.

[0006] In this invention, the top cover of the paint storage tank is provided with an angle iron for mounting a contact switch and a signal amplifier.

[0007] In this invention, the guide rod is provided with a connector for touching the contact switch.

[0008] In this invention, the upper part of the touch switch is provided with scale lines for displaying the numbers of the float level contact points.

[0009] In this invention, the gas-electric converter is provided with a connector for connecting to the gas outlet pipe.

[0010] In this invention, a float is installed inside the paint storage tank. The float moves up and down according to the buoyancy of the paint. A guide rod is fixed on the top of the paint storage tank and adjusts up and down with the liquid level. When the connector of the guide rod touches the contact of the contact switch, the air circuit inside the contact is closed, and the signal amplifier outputs control air. This control air can be used for pneumatic control or connected to an electrical signal via a pneumatic-electric converter. The position and number of the contact switch, guide rod, and float can be adjusted according to the actual liquid level. That is, there is feedback control air after the contact switch contacts the guide rod. If the liquid level is higher or lower than this position, the contact returns to normal and there is no control air.

[0011] Beneficial effects: This utility model can effectively detect changes in the liquid level of coatings and is applicable to various liquid media, including corrosive liquids and high-temperature liquids. The pneumatic conversion is suitable for flammable and explosive environments, and the detection is safe and reliable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0014] See Figure 1 The paint level detection device shown includes a paint tank 1, a float 2, a guide rod 3, a contact switch 4, a float level contact 5, an air inlet pipe 6, a signal amplifier 7, an air outlet pipe 8, and a gas-electric converter 9. The float 2 is positioned on the surface of the paint in the tank 1. The float 2 is connected to the contact switch 4, which is located on the top of the tank 1, via the guide rod 3. The signal amplifier 7 is located on one side of the contact switch 4, and the float level contact 5 is located on the contact switch 4. The signal amplifier 7 has an air inlet pipe 6 at one end and an air outlet pipe 8 at the other end, which is connected to the gas-electric converter 9.

[0015] In this embodiment, the top cover of the paint storage tank 1 is provided with an angle iron for mounting the contact switch 4 and the signal amplifier 7.

[0016] In this embodiment, the guide rod 3 is provided with a connector for touching the contact switch 4.

[0017] In this embodiment, the upper part of the touch switch 4 is provided with scale lines for displaying the numbers of the float liquid level contact 5.

[0018] In this embodiment, the gas-electric converter 9 is provided with a connector for connecting to the gas outlet pipe 8.

[0019] In this embodiment, a float 2 is installed inside the paint storage tank 1. The float 2 is buoyed by the paint and moves up and down according to the liquid level. A guide rod 3 is fixed on the top of the paint storage tank 1 and adjusts up and down according to the liquid level. A signal amplifier 7 and a contact switch 4 are fixed on the angle iron. When the connector of the guide rod 3 touches the contact of the contact switch 4, the air path inside the contact is closed, and the signal amplifier 7 outputs control air. This control air can be used for pneumatic control or connected to an electrical signal via a pneumatic-electric converter 9. The position and number of the contact switch 4, guide rod 3 and float 2 can be adjusted according to the actual liquid level. That is, there is feedback control air after the contact switch 4 contacts the guide rod 3. If the liquid level is higher or lower than this position, the contact returns to normal and there is no control air.

[0020] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A paint level detecting device comprising a paint reservoir, a float, a guide rod, a whisker switch, an air inlet tube, a signal amplifier, an air outlet tube and an air-to-electricity converter, characterized in that, A float ball is provided on the surface of the paint tank, and a contact switch is provided on the top of the paint tank. The float ball is connected to the contact switch via a guide rod. A signal amplifier is provided on one side of the contact switch, and a float ball level contact is provided on the contact switch. An air inlet pipe is provided at one end of the signal amplifier, and an air outlet pipe is provided at the other end of the signal amplifier. The air outlet pipe is connected to an air-to-electric converter.

2. The paint level detection device according to claim 1, characterized in that The top cover of the paint storage tank is equipped with an angle iron for mounting a contact switch and a signal amplifier.

3. The paint level detection device of claim 1, wherein The guide rod is equipped with a connector for touching the contact switch.

4. The paint level detection device of claim 1, wherein The upper part of the contact switch is provided with scale lines for displaying the numbers of the float ball liquid level contact.

5. The paint level detection device of claim 1, wherein The gas-electric converter is equipped with a connector for connecting to the gas outlet pipe.

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