Detection liquid level control device of oil quantity sensor

Abstract

The utility model discloses an oil quantity sensor detection liquid level control device which comprises an oil tank, an oil pump, a throttle valve, an oil storage pipe and a discharge valve, the oil storage pipe is installed on the top of the oil tank, an oil inlet of the oil pump is connected with the oil tank through an oil inlet pipe, an oil outlet of the oil pump is connected with the top of the oil storage pipe through an oil injection pipe, and the throttle valve is arranged on the oil injection pipe. The lower portion of the oil storage pipe is connected with the oil tank through an oil return pipe which is provided with a discharge valve. The oil storage pipe is filled with diesel oil used by the special vehicle by starting the oil pump and controlling the throttling valve, the liquid level height in the oil storage pipe is controlled by adjusting the discharge valve, output signals of the oil quantity sensor at different liquid level heights are detected, and operation and control are convenient and fast. Diesel oil media are completely sealed in the oil tank, when a product needs to be measured, diesel oil in the oil tank is input into the oil storage pipe through the oil pump, the diesel oil media are in a sealed space in the whole process, the requirement for environmental protection is met, and potential safety hazards are eliminated.

Description

Technical Field

[0001] This utility model relates to an oil level sensor for detecting and controlling liquid level. Background Technology

[0002] The fuel level sensor for special vehicles is installed on the upper part of the vehicle's fuel tank. It is a capacitive sensor, and its working characteristic is to output corresponding electrical signals at different fuel levels in the tank, thereby achieving accurate measurement of fuel level. The sensor transmits the electrical signals to the special vehicle's integrated display and control device, which processes the data and displays it as real-time fuel level information, allowing the driver to understand the vehicle's fuel status in a timely manner and make a decision on whether to refuel, thus avoiding driving safety issues due to insufficient fuel.

[0003] The product specification for the oil level sensor requires that the output electrical signal be detected at four randomly selected range positions within the full range of the product. The current technical solution is to suspend the oil level sensor with a rope and lower it into the oil medium. This measure does not conform to the actual operating conditions of the product, and the rope is subject to swaying, which affects the accuracy of the test results. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides an oil level sensor detection and control device that is simple in structure, easy to operate, safe and environmentally friendly, and has good versatility.

[0005] The technical solution adopted by this utility model is: an oil level sensor detection and control device, including an oil tank, an oil pump, a throttle valve, an oil storage pipe and a drain valve. The oil storage pipe is installed on the top of the oil tank. The oil inlet of the oil pump is connected to the oil tank through an oil inlet pipe. The oil outlet of the oil pump is connected to the top of the oil storage pipe through an oil injection pipe. A throttle valve is provided on the oil injection pipe. The lower part of the oil storage pipe is connected to the oil tank through a return oil pipe. A drain valve is provided on the return oil pipe.

[0006] Furthermore, an oil outlet pipe is also provided at the top of the oil storage pipe, which is connected to the oil tank.

[0007] Furthermore, the oil pump is installed on top of the oil tank.

[0008] Furthermore, it also includes a frame, on which the oil tank is mounted, and the middle part of the oil storage pipe is fixed to the frame.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. This utility model has a simple structure. It fills the oil storage pipe with diesel fuel for special vehicles by starting the oil pump and controlling the throttle valve. It controls the liquid level in the oil storage pipe by adjusting the drain valve and detects the output signal of the oil quantity sensor at different liquid levels. It is easy to operate.

[0011] 2. The diesel medium of this utility model is completely sealed inside the fuel tank. When product measurement is required, the diesel in the fuel tank is input into the oil storage pipe through the oil pump. The diesel medium is in a sealed space throughout the entire process, which meets environmental protection requirements and eliminates safety hazards.

[0012] 3. The oil injection pipe of this utility model is equipped with a throttle valve, which controls the diesel fuel level entering the oil storage pipe. The liquid level can be precisely adjusted by the drain valve, thereby improving the accuracy of the detection range of the medium. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention.

[0014] Figure 2 This is a structural diagram of the oil pump of this utility model installed on the oil tank.

[0015] Figure 3 This is a structural diagram of the oil storage pipe of this utility model. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1-3 As shown, this utility model includes a frame 9, an oil tank 1, an oil pump 2, a throttle valve 3, an oil storage pipe 4, and a drain valve 5. The oil tank 1 is mounted on the frame, and the middle part of the oil storage pipe 4 is fixed to the frame 9. The bottom of the oil storage pipe 4 and the oil pump 2 are mounted on the top of the oil tank 1. The oil inlet of the oil pump 2 is connected to the oil tank 1 through an oil inlet pipe, and the oil outlet of the oil pump 2 is connected to the top of the oil storage pipe 4 through an oil filling pipe 6. The oil filling pipe 6 is equipped with a throttle valve 3. The top of the oil storage pipe 4 is also equipped with an oil outlet pipe 7, which is connected to the oil tank 1. The lower part of the oil storage pipe 4 is connected to the oil tank through a return oil pipe 8, and the return oil pipe 8 is equipped with a drain valve 5.

[0018] In use, the oil pump 2 operates by injecting diesel fuel into the oil storage pipe 4 through the oil injection pipe 6. During the injection process, the diesel fuel flow rate can be controlled by the throttling valve 3 to obtain the required diesel fuel level. If operator negligence occurs and the oil pump is not shut off in time, the diesel fuel level in the oil storage pipe 4 will rise to the outlet pipe 7, and the diesel fuel will flow back to the oil tank 1 from the outlet pipe 7, preventing diesel fuel spillage. After the diesel fuel is injected into the oil storage pipe 4, the oil level sensor can begin testing. According to the industry standard for oil level sensor testing, at least three precise measurement points—full scale, half scale, and near-zero diesel fuel—must be selected for output performance testing. For full scale measurement, the oil storage pipe must be filled with diesel fuel. For half scale and near-zero diesel fuel measurements, simply open the drain valve 5 to control the liquid level to the required position to perform the output performance test.

Claims

1. An oil level sensor-based liquid level detection and control device, characterized in that: It includes an oil tank, an oil pump, a throttle valve, an oil storage pipe, and a drain valve. The oil storage pipe is installed on the top of the oil tank. The oil pump inlet is connected to the oil tank through an inlet pipe, and the oil pump outlet is connected to the top of the oil storage pipe through an injection pipe. The injection pipe is equipped with a throttle valve. The lower part of the oil storage pipe is connected to the oil tank through a return pipe. The return pipe is equipped with a drain valve.

2. The oil level sensor detection and control device according to claim 1, characterized in that: An oil outlet pipe is also provided at the top of the oil storage pipe, which is connected to the oil tank.

3. The oil level sensor detection and control device according to claim 1, characterized in that: The oil pump is installed on top of the oil tank.

4. The oil level sensor detection and control device according to claim 1, characterized in that: It also includes a frame, on which the oil tank is mounted, and the middle part of the oil storage pipe is fixed to the frame.

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