Urea sensor

Abstract

The utility model discloses a urea sensor, and relates to the technical field of sensors. Liquid entering the box body is purified and filtered through the filtering frame and the fixing frame, the liquid in the box body is monitored through the liquid level sensor, and the box body and the top cover can be disassembled by disassembling the connecting column, so that the whole filtering mechanism can be disassembled, combined installation is convenient, and the filtering efficiency is improved. After the filter rack and the fixed frame are detached, the purpose of cleaning the filter rack and the fixed frame can be achieved, so that the filtering effect and quality can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field, concretely relates to a urea sensor. BACKGROUND

[0002] A urea sensor is a sensor used to detect and measure the level of urea in a machine or vehicle. Urea is a chemical substance used to reduce nitrogen oxides emitted by machines or vehicles for the purpose of environmental protection. Urea is commonly used in diesel vehicles and construction machinery because their emission control is very important for the environment. A urea sensor can help maintain the efficiency and performance of a vehicle's engine. The operation of a urea sensor is by detecting the chemical substance of urea inside the vehicle to determine the level of urea inside the vehicle. This is done through an electrical charge transfer process, which changes when the sensor detects the presence of urea. These changes are recorded when measuring the sensor's output current, allowing a computer system to analyze the data. The advantage of a urea sensor is that it can accurately measure the level of urea and provide warning information to the computer system in a timely manner. This helps maintain the performance and efficiency of the vehicle while ensuring environmental and health compliance. In addition, urea sensors can also be used in automated systems to reduce manual intervention and monitoring.

[0003] According to the search, according to the authorized announcement number CN216366864U of Chinese patent, a kind of filter screen assembly structure of urea sensor is recorded, and its invention content records "the structure is convenient to use, impurity passes through filter screen cloth and fine filter screen twice filtration, in turn can improve the filtration effect to impurity, avoid impurity influence the service life of urea sensor;Positioning sealing washer can be carried out by pressure ring, the sealing washer can improve the sealing property when connecting pipeline;Fan-shaped structure can improve the filtration area of this structure" this content, the filter screen assembly structure of urea sensor, one end of external pipe is communicated with urea sensor, the other end of external pipe is inserted into the inside of fixed sleeve, sealing washer is sealed to external pipe, urea aqueous solution after passing through filter screen cloth and fine filter screen filtration enters the inside of urea sensor, filter screen cloth and fine filter screen filter the impurity in urea aqueous solution, part of impurity can be attached to the outside of filter screen cloth and the outside of fine filter screen, but fine filter screen is fixedly connected between adjacent connecting strip board, it is difficult to clean the impurity on the outer wall of fine filter screen, affect filtration efficiency, need to be improved, for this, we propose a kind of urea sensor. UTILITY MODEL CONTENT

[0004] The utility model aims at: for solving the problem mentioned in the above background art, the utility model provides a urea sensor.

[0005] The utility model discloses a technical scheme to achieve the above-mentioned purposes, which specifically comprises the following technical solutions.

[0006] A urea sensor, comprising:

[0007] A box body;

[0008] A filtering mechanism, comprising a fixed frame detachably installed inside the box body, a filter frame installed below the fixed frame, a liquid level sensor installed inside the fixed frame, two groups of connecting pipes symmetrically arranged inside the fixed frame, a fixed seat installed outside the connecting pipes on the same side, and a fixed plate installed at the lower end of the fixed seat;

[0009] A top cover detachably installed at the upper end of the box body through a connecting column;

[0010] Liquid inlet pipes detachably installed at the lower part of both sides of the box body.

[0011] Further, the upper end of the fixed frame is provided with a clamping block, and the upper end of the inner wall of the box body is provided with a clamping groove, and the clamping block is clamped in the clamping groove.

[0012] Further, the lower end of the fixed frame is provided with an installation groove, the upper end of the filter frame is in interference fit with the installation groove, and a plurality of through holes arranged in concentric circles are uniformly arranged in the interior of the fixed frame and the filter frame.

[0013] Further, the circumferential surface of the upper end of the liquid level sensor is detachably provided with a fastener, the circumferential surface of the upper end of the top cover is provided with external threads, the interior of the fastener is provided with internal threads, and the liquid level sensor and the fastener are connected through threads.

[0014] Further, the inner bottom wall of the box body is detachably provided with a pressure sensor.

[0015] Further, the upper end of the box body is provided with a connecting block, the lower end of the top cover is provided with a connecting groove, the connecting block is inserted into the connecting groove, and the interior of the connecting block and the connecting groove is provided with through holes arranged in concentric circles, and the connecting column is inserted into the through hole.

[0016] Further, each liquid inlet pipe is provided with a control valve, and the control valve is a one-way valve.

[0017] The beneficial effects of the utility model are as follows:

[0018] The liquid entering the box body is purified and filtered through the filter frame and the fixed frame, the liquid in the box body is monitored through the liquid level sensor, the box body and the top cover can be disassembled through the disassembly of the connecting column, so that the disassembly of the whole filtering mechanism can be realized, the combination installation is facilitated, and after the disassembly of the filter frame and the fixed frame, the cleaning purpose of the filter frame and the fixed frame can be realized, so that the filtering effect and quality can be guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the perspective view of the utility model;

[0020] Figure 2 is the front sectional view of the utility model;

[0021] Figure 3 is the perspective view of the filtering mechanism in the utility model;

[0022] Figure 4 is the perspective exploded view of the utility model after removing the filtering mechanism.

[0023] Reference signs: 1, box body; 2, filtering mechanism; 201, fixed frame; 202, filter frame; 203, liquid level sensor; 204, connecting pipe; 205, fixed seat; 206, fixed plate; 207, fastener; 3, pressure sensor; 4, connecting column; 5, top cover; 6, liquid inlet pipe; 7, control valve. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0025] Please refer to Figure 1 - Figure 4 The utility model provides a kind of urea sensor, comprising:

[0026] Box body 1; under the action of box body 1, the storage purpose of liquid can be realized.

[0027] Filtering mechanism 2, filtering mechanism 2 includes the fixed frame 201 detachably installed in the inside of box body 1, the filter frame 202 installed below fixed frame 201, the liquid level sensor 203 installed in the inside of fixed frame 201, two groups of connecting pipes 204 symmetrically arranged in the inside of fixed frame 201, the fixed seat 205 installed on the outside of connecting pipe 204 located in the same side, the fixed plate 206 installed in the lower end of fixed seat 205.

[0028] The fixing frame 201 can ensure the installation stability of the filter frame 202, the liquid level sensor 203 can monitor the liquid level in the box 1 in real time, the connecting pipe 204 can realize the connection of the liquid, the top cover 5 can support the fixed plate 206, the fixed plate 206 can support the fixed seat 205, the fixed seat 205 can ensure the installation stability of the connecting pipe 204, the liquid entering the box 1 is purified and filtered through the filter frame 202 and the fixing frame 201, the liquid in the box 1 is monitored by the liquid level sensor 203, and the box 1 and the top cover 5 can be separated by disassembling the connecting column 4, so that the whole filter mechanism 2 can be disassembled and assembled, and the filter frame 202 and the fixing frame 201 can be disassembled and cleaned, so as to ensure the filtering effect and quality.

[0029] The top cover 5 is detachably installed on the upper end of the box 1 through the connecting column 4.

[0030] The connecting column 4 can ensure the connection of the box 1 and the top cover 5, and the top cover 5 can ensure the sealing of the box 1 and be convenient to disassemble.

[0031] The liquid inlet pipe 6 is detachably installed on the lower part of the two sides of the box 1.

[0032] The liquid inlet pipe 6 can realize the purpose of liquid inlet.

[0033] In this embodiment, preferably, the upper end of the two sides of the fixing frame 201 is provided with a clamping block, the upper end of the inner wall of the box 1 is provided with a clamping groove, and the clamping block is clamped in the clamping groove; the clamping groove can ensure the installation stability of the clamping block, and the cooperation of the clamping block and the clamping groove can ensure the installation stability of the fixing frame 201.

[0034] In this embodiment, preferably, the lower end of the two sides of the fixing frame 201 is provided with an installation slot, the upper end of the two sides of the filter frame 202 is in interference fit with the installation slot, and a plurality of through holes arranged in concentric circles are uniformly arranged in the inside of the fixing frame 201 and the filter frame 202; the installation slot can ensure the connection stability of the fixing frame 201 and the filter frame 202, and the through holes can realize the flow of the liquid.

[0035] In the embodiment, preferably, the circumferential surface of the upper end of the liquid level sensor 203 is detachably provided with a fastener 207, the circumferential surface of the upper end of the top cover 5 is provided with external threads, the inside of the fastener 207 is provided with internal threads, and the liquid level sensor 203 is connected with the fastener 207 through threads; the detachable connection of the liquid level sensor 203 and the fastener 207 through threads can ensure the stability of the installation of the liquid level sensor 203.

[0036] In the embodiment, preferably, the inner bottom wall of the box body 1 is detachably provided with a pressure sensor 3; the real-time monitoring of the pressure inside the box body 1 under the action of the pressure sensor 3 can reduce the security risks and ensure the safety.

[0037] In the embodiment, preferably, the upper end of the box body 1 is provided with a connecting block, the lower end of the top cover 5 is provided with a connecting groove, the connecting block is inserted into the connecting groove, and the connecting block and the connecting groove are both provided with through holes arranged in concentric circles, and the connecting column 4 is inserted into the through holes; the connecting block can be stably installed in the connecting groove, the box body 1 and the top cover 5 can be stably connected through the cooperation of the connecting block and the connecting groove, and the connecting column 4 can be stably installed in the through holes.

[0038] In the embodiment, preferably, each liquid inlet pipe 6 is provided with a control valve 7, and the control valve 7 is a one-way valve; the start and stop of the liquid inlet pipe 6 can be realized under the action of the control valve 7, and the one-way valve can prevent the liquid inside the box body 1 from overflowing.

[0039] The working principle and use process of the utility model are as follows: when the device is used, the storage of liquid can be realized under the action of the box body 1, the liquid entering the inside of the box body 1 is purified through the filter frame 202 and the fixed frame 201, the liquid inside the box body 1 is monitored through the liquid level sensor 203, the box body 1 and the top cover 5 can be detached through the dismounting of the connecting column 4, so that the whole filter mechanism 2 can be dismounted, which is convenient for combination and installation; after the filter frame 202 and the fixed frame 201 are dismounted, the cleaning purpose of the filter frame 202 and the fixed frame 201 can be realized, so that the filtering effect and quality can be ensured; the connection of the box body 1 and the top cover 5 can be realized under the action of the connecting column 4, the sealing of the box body 1 can be ensured under the action of the top cover 5, and the top cover 5 is convenient to dismount; the liquid inlet purpose can be realized under the action of the liquid inlet pipe 6, each liquid inlet pipe 6 is provided with a control valve 7, and the control valve 7 is a one-way valve; the start and stop of the liquid inlet pipe 6 can be realized under the action of the control valve 7, and the one-way valve can prevent the liquid inside the box body 1 from overflowing; the inner bottom wall of the box body 1 is detachably provided with a pressure sensor 3, and the pressure inside the box body 1 can be monitored in real time under the action of the pressure sensor 3, so as to reduce the security risks and ensure the safety.

[0040] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A urea sensor, characterized by Include: Box (1); Filter mechanism (2) comprising a fixed frame (201) detachably mounted inside the box (1), a filter frame (202) mounted below the fixed frame (201), a liquid level sensor (203) mounted inside the fixed frame (201), two groups of symmetrical connecting pipes (204) arranged inside the fixed frame (201), a fixed seat (205) mounted outside the connecting pipe (204) on the same side, a fixed plate (206) mounted at the lower end of the fixed seat (205); Top cover (5) detachably mounted on the upper end of the box (1) through connecting column (4); Liquid inlet pipe (6) detachably mounted on both sides of the lower part of the box (1).

2. A urea sensor according to claim 1, characterised in that: The upper end of the fixed frame (201) is provided with a clamping block, and the upper end of the inner wall of the box (1) is provided with a clamping groove, and the clamping block is clamped in the clamping groove.

3. A urea sensor according to claim 1, characterized in that: The lower end of the fixed frame (201) is provided with an installation groove, the upper end of the filter frame (202) is interference fit with the installation groove, and the inside of the fixed frame (201) and the filter frame (202) is uniformly provided with a plurality of through holes arranged in concentric circles.

4. A urea sensor according to claim 1, characterized in that: The circumferential surface of the upper end of the liquid level sensor (203) is detachably provided with a fastener (207), the circumferential surface of the upper end of the top cover (5) is provided with external threads, the inside of the fastener (207) is provided with internal threads, and the liquid level sensor (203) and the fastener (207) are connected through threads.

5. A urea sensor according to claim 1, characterized in that: The inner bottom wall of the box (1) is detachably provided with a pressure sensor (3).

6. A urea sensor according to claim 1, characterized in that: The upper end of the box (1) is provided with a connecting block, the lower end of the top cover (5) is provided with a connecting groove, the connecting block is inserted into the connecting groove, and the inside of the connecting block and the connecting groove is provided with a through hole arranged in concentric circles, and the connecting column (4) is inserted into the through hole.

7. A urea sensor according to claim 1, characterized in that: Each of the liquid inlet pipes (6) is provided with a control valve (7), and the control valve (7) is selected as a one-way valve.

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