Urea filtering device for vehicle

Abstract

The utility model relates to the technical field of vehicle urea filtering, and discloses a vehicle urea filtering device which comprises a bearing mechanism and a filtering mechanism, the filtering mechanism is in threaded connection with the inner bottom of the bearing mechanism, the filtering mechanism comprises a filter screen unit and a discharging unit, the filter screen unit is in threaded connection with the interior of the bearing mechanism, and the discharging unit is in threaded connection with the interior of the bearing mechanism. And the discharging unit is in threaded connection with the bottom of the bearing mechanism. According to the vehicle urea filtering device, the detachable bottom shell and the detachable connecting frame are arranged, so that the vehicle urea filtering device is convenient to detach after being used, the internal multi-stage filter screen is detached, filtered impurities are convenient to clean, the filtering performance of the vehicle urea filtering device is recovered, the service life of the filter screen is prolonged, and the filtering quality of the filter screen is improved; the quality detection filter plate is arranged at the top of the discharging opening, so that filtered urea water can be conveniently detected, whether filtering reaches the standard or not is judged, the stability of the filtering effect is ensured, meanwhile, an alarm function is achieved, and the safety and reliability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle urea filtration, in particular to a vehicle urea filtration device. Background Technique

[0002] Urea water can purify NOx and is widely used in the gas purification system of large diesel vehicles. Automotive urea is a liquid used in SCR technology to reduce nitrogen oxide pollution in the exhaust gas of diesel vehicles. The scientific name of automotive urea is diesel engine exhaust treatment fluid, which is commonly known as automotive urea, vehicle urea, automotive environmental protection urea, and vehicle denitrification agent in China. The most commonly used is the reducing agent for the vehicle urea system. By using the reaction of the aqueous solution of vehicle urea with nitrogen oxides in the exhaust gas of diesel vehicles such as heavy trucks and buses to generate N2 and H2O, the exhaust gas is purified to make the nitrogen oxides discharged meet the Euro IV emission standard.

[0003] The prior art discloses a vehicle urea filtration device with the application number 202222680515.3, which includes a filtration cylinder, a heat exchange cylinder, an overflow cylinder, a filter screen, and a filtration chamber. The upper and lower parts of the filtration cylinder are respectively connected with the filtration cylinder and the heat exchange cylinder through flanges. At least one filter screen is fixedly arranged in the filtration cylinder at equal intervals along the vertical direction. The filtration cylinder is divided into multiple filtration chambers by the filter screen, and the pore sizes of the filter screens gradually decrease downward along the vertical direction. The heat exchange cylinder includes a vertical pipe, and the first heat exchange plate and the second heat exchange plate are alternately arranged in the vertical pipe. The advantages of the above-mentioned utility model are as follows: by alternately arranging the first heat exchange plate and the second heat exchange plate, multi-dimensional heat exchange operation of the urea in the horizontal and vertical directions is realized, and the heat exchange efficiency is improved; the urea is evenly stirred by the stirring assembly, and the scraping operation of the urea adhering to the wall can be realized through the scraping plate; through the overflow cylinder, the urea on the top layer is first led out after standing, further improving the quality of the led-out urea.

[0004] However, the existing technology still has the following deficiencies. First, when the above device is used, the scraping operation of the urea adhering to the wall can be realized through the scraping plate, improving the quality of the led-out urea. However, when the above device filters vehicle urea, impurities will remain on the surface of the filter screen, and it is inconvenient to remove the filter screen, and the difficulty of cleaning the filter screen is relatively high. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a vehicle urea filtration device to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a vehicle urea filtration device, including a bearing mechanism and a filtration mechanism, and the filtration mechanism is threadedly connected to the inner bottom of the bearing mechanism.

[0007] The filtering mechanism includes a filter screen unit and a discharge unit. The filter screen unit is threadedly connected to the inside of the bearing mechanism, and the discharge unit is threadedly connected to the bottom of the bearing mechanism.

[0008] Preferably, the bearing mechanism is composed of a support frame, a filter cylinder, a threaded interface, a clamping groove, an inlet, a disassembly and assembly motor, and a disassembly and assembly threaded rod. The filter cylinder is fixedly connected to the inside of the support frame, the threaded interface is fixedly connected to the bottom of the filter cylinder, the clamping groove is opened in the inside of the filter cylinder, the inlet is opened at the top of the filter cylinder, the disassembly and assembly motor is fixedly connected to the top of the filter cylinder, and the disassembly and assembly threaded rod is rotatably connected to the inner top of the filter cylinder, playing a main bearing effect.

[0009] Preferably, the filter screen unit is composed of a threaded connection sleeve, a connecting plate, a connecting frame, a coarse filter screen, a fine filter screen, and a nano filter layer. The threaded connection sleeve is threadedly connected to the surface of the disassembly and assembly threaded rod, the connecting plate is fixedly connected to the surface of the threaded connection sleeve, the connecting frame is fixedly connected to the side of the connecting plate, the coarse filter screen is fixedly connected to the inside of the connecting frame, the fine filter screen is fixedly connected to the inside of the connecting frame, and the nano filter layer is fixedly connected to the inside of the connecting frame, playing a role of multi-stage filtration and improving the filtration effect.

[0010] Preferably, the discharge unit is composed of a bottom shell, a handle, a quality detection filter plate, a discharge port, and an alarm. The bottom shell is threadedly connected to the surface of the threaded interface, the handle is fixedly connected to the surface of the bottom shell, the quality detection filter plate is fixedly connected to the top of the discharge port, the discharge port is fixedly connected to the bottom of the bottom shell, and the alarm is fixedly connected to the surface of the discharge port, playing a main discharge and facilitating disassembly and assembly role.

[0011] Preferably, there are three groups of the connecting frames. Each group of connecting frames is attached to the bottom of the corresponding clamping groove, and the coarse filter screen, the fine filter screen, and the nano filter layer are arranged in the upper, middle, and lower order, facilitating tight connection in a stacked manner and preventing penetration.

[0012] Preferably, the quality detection filter plate is electrically connected to the alarm, facilitating the detection of the quality of the urea water through the quality detection filter plate and being able to give an alarm reminder for the unqualified filtered urea water in a timely manner.

[0013] Preferably, a limiting ring is provided at the upper end of the threaded interface, and a sealing gasket is provided at the bottom of the limiting ring, facilitating the tight installation of the bottom shell at the bottom of the filter cylinder and preventing leakage.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The vehicle urea filtration device is provided with a detachable bottom shell and a connection frame, which facilitates disassembly after use. The internal multi-stage filter screens can be disassembled, making it convenient to clean the filtered impurities, restoring their filtering performance, and improving the service life and filtering quality of the filter screens.

[0016] 2. The vehicle urea filtration device is provided with a quality detection filter plate at the top of the material discharge port, which facilitates the detection of the filtered urea water, determines whether the filtration meets the standard, ensures the stability of the filtration effect, and also has an alarm function, improving the safety and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the external structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the bottom structure of the present utility model;

[0019] Figure 3 is a schematic diagram of the internal structure of the present utility model;

[0020] Figure 4 is the present utility model Figure 3 The enlarged schematic diagram of part A in.

[0021] In the figure: 1. Bearing mechanism; 101. Support frame; 102. Filter cylinder; 103. Threaded interface; 104. Card slot; 105. Inlet; 106. Disassembly and assembly motor; 107. Disassembly and assembly threaded rod; 2. Filtration mechanism; 201. Threaded connection sleeve; 202. Connection plate; 203. Connection frame; 204. Coarse filter screen; 205. Fine filter screen; 206. Nano filter layer; 211. Bottom shell; 212. Handle; 213. Quality detection filter plate; 214. Material discharge port; 215. Alarm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides the following technical solutions: A vehicle urea filtration device includes a bearing mechanism 1 and a filtration mechanism 2, and the filtration mechanism 2 is threadedly connected to the inner bottom of the bearing mechanism 1.

[0024] The filtering mechanism 2 includes a filter screen unit and a discharge unit. The filter screen unit is threadedly connected to the inside of the bearing mechanism 1, and the discharge unit is threadedly connected to the bottom of the bearing mechanism 1.

[0025] The bearing mechanism 1 is composed of a support frame 101, a filter cylinder 102, a threaded interface 103, a clamping groove 104, an inlet 105, a disassembly and assembly motor 106, and a disassembly and assembly threaded rod 107. The filter cylinder 102 is fixedly connected to the inside of the support frame 101. The threaded interface 103 is fixedly connected to the bottom of the filter cylinder 102. A limit ring is provided at the upper end of the threaded interface 103, and a sealing gasket is provided at the bottom of the limit ring, which is convenient for the bottom shell 211 to be tightly installed at the bottom of the filter cylinder 102 to prevent leakage. The clamping groove 104 is opened in the filter cylinder 102, the inlet 105 is opened at the top of the filter cylinder 102, the disassembly and assembly motor 106 is fixedly connected to the top of the filter cylinder 102, and the disassembly and assembly threaded rod 107 is rotatably connected to the inner top of the filter cylinder 102, playing a main bearing effect.

[0026] The filter screen unit is composed of a threaded connection sleeve 201, a connecting plate 202, a connecting frame 203, a coarse filter screen 204, a fine filter screen 205, and a nano filter layer 206. The threaded connection sleeve 201 is threadedly connected to the surface of the disassembly and assembly threaded rod 107. The connecting plate 202 is fixedly connected to the surface of the threaded connection sleeve 201. The connecting frame 203 is fixedly connected to the side of the connecting plate 202. There are three groups of connecting frames 203. Each group of connecting frames 203 is attached to the bottom of the corresponding clamping groove 104, and the coarse filter screen 204, the fine filter screen 205, and the nano filter layer 206 are arranged from top to bottom, which is convenient for tight connection in layers to prevent penetration. The coarse filter screen 204 is fixedly connected to the inside of the connecting frame 203, the fine filter screen 205 is fixedly connected to the inside of the connecting frame 203, and the nano filter layer 206 is fixedly connected to the inside of the connecting frame 203, playing a role of multi-stage filtration to improve the filtration effect. The discharge unit is composed of a bottom shell 211, a handle 212, a quality detection filter plate 213, a discharge port 214, and an alarm 215. The bottom shell 211 is threadedly connected to the surface of the threaded interface 103. The handle 212 is fixedly connected to the surface of the bottom shell 211. The quality detection filter plate 213 is fixedly connected to the top of the discharge port 214. The quality detection filter plate 213 is electrically connected to the alarm 215, which is convenient for detecting the quality of the urea water through the quality detection filter plate 213 and can timely alarm and remind the unqualified filtered urea water. The discharge port 214 is fixedly connected to the bottom of the bottom shell 211, and the alarm 215 is fixedly connected to the surface of the discharge port 214, playing a main discharge and convenient disassembly and assembly role.

[0027] During use, the urea water to be filtered is filled into the interior of the filter cylinder 102 through the inlet 105. After multi-stage filtration by the coarse filter screen 204, the fine filter screen 205, and the nano-filter layer 206, it is discharged through the discharge port 214 after being detected by the quality inspection filter plate 213. When the quality inspection filter plate 213 detects that the filtered urea water is still unqualified, an alarm is sounded through the alarm 215 to remind the staff to perform maintenance. By pushing the grip 212 to drive the bottom shell 211 to rotate, after disassembling it, hold the connection frame 203 steadily, drive the disassembly and assembly motor 106 to drive the disassembly and assembly threaded rod 107 to rotate, and remove the connection frame 203 to achieve the effect of rapid disassembly. The installation is the reverse of the above operation.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to the embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle urea filtering device, comprising a supporting mechanism (1) and a filtering mechanism (2), characterized in that: The filtering mechanism (2) is threadedly connected to the inner bottom of the supporting mechanism (1); The filtering mechanism (2) comprises a filter unit and a discharge unit, the filter unit being threadedly connected to the interior of the supporting mechanism (1), and the discharge unit being threadedly connected to the bottom of the supporting mechanism (1); The bearing mechanism (1) is composed of a support frame (101), a filter cartridge (102), a threaded interface (103), a positioning groove (104), an inlet (105), a disassembly motor (106), and a disassembly threaded rod (107); the filter cartridge (102) is fixedly connected to the inside of the support frame (101); the threaded interface (103) is fixedly connected to the bottom of the filter cartridge (102); the positioning groove (104) is provided in the inside of the filter cartridge (102); the inlet (105) is provided at the top of the filter cartridge (102); the disassembly motor (106) is fixedly connected to the top of the filter cartridge (102); and the disassembly threaded rod (107) is rotatably connected to the inner top of the filter cartridge (102).

2. A vehicle urea filter device according to claim 1, characterized in that: The filter unit is composed of a threaded connection sleeve (201), a connection plate (202), a connection frame (203), a coarse filter (204), a fine filter (205), and a nano filter layer (206); the threaded connection sleeve (201) is threadedly connected to the surface of a disassembly threaded rod (107); the connection plate (202) is fixedly connected to the surface of the threaded connection sleeve (201); the connection frame (203) is fixedly connected to the side of the connection plate (202); the coarse filter (204) is fixedly connected to the inside of the connection frame (203); the fine filter (205) is fixedly connected to the inside of the connection frame (203); and the nano filter layer (206) is fixedly connected to the inside of the connection frame (203).

3. A vehicle urea filter device according to claim 2, characterized in that: The discharge unit is composed of a bottom shell (211), a handle (212), a quality detection filter plate (213), a discharge port (214) and an alarm (215); the bottom shell (211) is threadedly connected to the surface of the threaded interface (103); the handle (212) is fixedly connected to the surface of the bottom shell (211); the quality detection filter plate (213) is fixedly connected to the top of the discharge port (214); the discharge port (214) is fixedly connected to the bottom of the bottom shell (211); and the alarm (215) is fixedly connected to the surface of the discharge port (214).

4. A vehicle urea filter device according to claim 3, characterized in that: The connection frames (203) are provided in three groups, wherein each group of connection frames (203) is fitted to the bottom of the corresponding positioning slot (104), and the coarse filter (204), the fine filter (205) and the nano filter layer (206) are arranged in an upper, middle and lower position.

5. A vehicle urea filter device according to claim 4, characterized in that: The quality detection filter plate (213) is electrically connected to the alarm (215).

6. A vehicle urea filter device according to claim 5, characterized in that: A limiting ring is arranged at the upper end of the threaded interface (103), wherein a sealing gasket is arranged at the bottom of the limiting ring.

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