CN216366865U

CN216366865U - Novel urea liquid level temperature sensor filter screen

Info

Publication number: CN216366865U
Application number: CN202123058413.XU
Authority: CN
Inventors: 王璇
Original assignee: Hefei Lanhai Electronic Technology Co ltd
Current assignee: Hefei Lanhai Electronic Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-04-26
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a novel urea liquid level temperature sensor filter screen which comprises a framework, wherein the framework is of an arc-shaped structure, the outer wall of the framework is provided with the filter screen, the framework comprises an upper base plate and a lower base plate, the center of the lower base plate is provided with a hollow groove, a group of stand columns are arranged between the upper base plate and the lower base plate, the center of each stand column is provided with a reinforcing cross beam, the left side of the framework is provided with a pipe groove, the top of the pipe groove is provided with a pipe groove opening, the pipe groove opening is internally provided with a mounting groove, a sealing ring is clamped in the mounting groove, a limiting ring is arranged above the sealing ring, and the limiting ring is clamped at the top of the mounting groove. The anti-blocking device is simple in structure, good in anti-blocking effect and strong in sealing performance.

Description

Novel urea liquid level temperature sensor filter screen

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a novel urea liquid level temperature sensor filter screen.

Background

When an internal combustion engine of an automobile, such as a diesel engine, is operated, nitrogen oxides (NOx) are generated with an excessive amount of oxygen in many cases, thereby causing environmental pollution. In order to meet the increasingly stringent emission requirements and reduce the emission of nitrogen oxides, NOx in the exhaust gas needs to be reduced into nitrogen and water, and usually, before the exhaust gas enters the catalyst, an aqueous urea solution is injected into the exhaust gas as a reducing agent to reduce the NOx, and the operation is specifically realized by pumping the exhaust gas into an exhaust pipeline after the urea solution is absorbed from a urea tank by a urea supply pump.

Urea liquid level temperature sensor is used for detecting the liquid level and the temperature of urea liquid in the urea case, and the current urea liquid level temperature sensor mostly has the easy defect of blockking up and the sealed not tight defect of interface with the filter screen, leads to urea liquid level temperature sensor often to be out of order. Therefore, a new type of urea level temperature sensor filter screen is needed to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel urea liquid level temperature sensor filter screen to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a novel urea liquid level temperature sensor filter screen, includes the skeleton, the skeleton is circular-arc structure, be provided with the filter screen on the outer wall of skeleton, the skeleton includes upper plate and lower plate, lower plate center department is provided with the fretwork groove, be provided with a set of stand between upper plate and the lower plate, the center department of stand is provided with the reinforcement crossbeam, the left side of skeleton is provided with the tube seat, the top of tube seat is provided with the tube seat mouth, be provided with the mounting groove in the tube seat mouth, the joint has the sealing washer in the mounting groove, the sealing washer top is provided with the spacing ring, the spacing ring joint is at the top of mounting groove.

Preferably, be provided with the annular groove on the circumference inner wall of mounting groove, be provided with annular arch on the circumference outer wall of spacing ring, annular arch and annular groove joint cooperation.

Preferably, a group of contraction grooves are uniformly distributed at the bottom of the limiting ring, and a chamfer is arranged at the outer edge of the lower port of the limiting ring.

Preferably, the top of the limiting ring is provided with an annular table, and the outer edge of the annular table extends out of the pipe notch.

Preferably, the filter screen is made of PA6 nylon, and the aperture of the filter screen is 40 μm.

Preferably, the framework is made of PA66 nylon.

Compared with the prior art, the utility model has the beneficial effects that: compared with the traditional urea liquid level temperature sensor filter screen hanger, the vertical beam of the framework 1 is reduced, and the area of the filter screen is greatly increased, so that the filtering efficiency of the filter screen is improved, and the probability of filter screen blockage is reduced. The framework made of PA66 nylon has good strength and rigidity, and the framework is prevented from deforming. The PA6 nylon filter screen has good corrosion prevention effect and long service life. The sealing performance of sealing washer 10 riser notch, the spacing ring is spacing to the sealing washer. The annular bulge is matched with the annular groove in a clamping manner, so that the clamping tightness of the limiting ring is ensured. The setting up of shrink groove makes taking out at the spacing ring more convenient, and the outer fringe of annular table stretches out the setting of tub notch, conveniently takes out the spacing ring through carrying the ring platform of drawing. The anti-blocking device is simple in structure, good in anti-blocking effect and strong in sealing performance.

Drawings

FIG. 1 is a schematic perspective view of a novel urea level temperature sensor screen;

FIG. 2 is a schematic structural view of a front view of a novel urea level temperature sensor screen;

fig. 3 is a partial enlarged view of fig. 2 at K.

In the figure: 1-framework, 2-upper bottom plate, 3-lower bottom plate, 4-hollowed-out groove, 5-upright column, 6-reinforced beam, 7-pipe groove, 8-pipe notch, 9-limiting ring, 10-sealing ring, 11-annular table, 12-shrinkage groove, 13-chamfer, 14-annular bulge, 15-annular groove and 16-installation groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1 to 3, a novel urea liquid level temperature sensor filter screen comprises a framework 1, wherein the framework 1 is of a circular arc structure, a filter screen is arranged on the outer wall of the framework 1, the framework 1 comprises an upper base plate 2 and a lower base plate 3, a hollow groove 4 is arranged at the center of the lower base plate 3, a set of stand columns 5 is arranged between the upper base plate 2 and the lower base plate 3, a reinforcing cross beam 6 is arranged at the center of each stand column 5, a pipe groove 7 is arranged on the left side of the framework 1, a pipe groove opening 8 is arranged at the top of the pipe groove 7, a mounting groove 16 is arranged in the pipe groove opening 8, a sealing ring 10 is clamped in the mounting groove 16, a limiting ring 9 is arranged above the sealing ring 10, and the limiting ring 9 is clamped at the top of the mounting groove 16.

The filter screen is made of PA6 nylon, and the aperture of the filter screen is 40 mu m.

The framework is made of a PA66 nylon material.

The working principle is as follows: compared with the traditional urea liquid level temperature sensor filter screen hanger, the vertical beam of the framework 1 is reduced, and the area of the filter screen is greatly increased, so that the filtering efficiency of the filter screen is improved, and the probability of filter screen blockage is reduced. The framework 1 made of PA66 nylon has good strength and rigidity, and the framework 1 is ensured not to deform. The PA6 nylon filter screen has good corrosion prevention effect and long service life. The sealing performance of the sealing ring 10 and the riser notch 8, and the limiting ring 9 limits the sealing ring 10.

Example 2: referring to fig. 2 to 3, a novel urea liquid level temperature sensor filter screen is different from that of embodiment 1 in that an annular groove 15 is formed in the inner circumferential wall of the mounting groove 16, an annular protrusion 14 is formed in the outer circumferential wall of the limiting ring 9, and the annular protrusion 14 is in clamping fit with the annular groove 15.

A group of contraction grooves 12 are uniformly distributed at the bottom of the limiting ring 9, and chamfers 13 are arranged on the outer edge of the lower port of the limiting ring 9.

An annular table 11 is arranged at the top of the limiting ring 9, and the outer edge of the annular table 11 extends out of the pipe notch 8.

The working principle is as follows: the annular bulge 14 is matched with the annular groove 15 in a clamping manner, so that the clamping tightness of the limiting ring 9 is ensured. The setting of shrink groove 12 makes taking out at spacing ring 9 more convenient, and the setting of the outer fringe extension pipe notch 8 of annular platform 11 is conveniently through carrying out the setting of drawing annular platform 11 and taking out spacing ring 9.

In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.

Claims

1. The utility model provides a novel urea liquid level temperature sensor filter screen, includes skeleton (1), its characterized in that: skeleton (1) is circular-arc structure, be provided with the filter screen on the outer wall of skeleton (1), skeleton (1) includes upper plate (2) and lower plate (3), lower plate (3) center department is provided with fretwork groove (4), be provided with a set of stand (5) between upper plate (2) and lower plate (3), the center department of stand (5) is provided with reinforcement crossbeam (6), the left side of skeleton (1) is provided with tube seat (7), the top of tube seat (7) is provided with tube groove mouth (8), be provided with mounting groove (16) in tube groove mouth (8), joint has sealing washer (10) in mounting groove (16), sealing washer (10) top is provided with spacing ring (9), spacing ring (9) joint is at the top of mounting groove (16).

2. The novel urea liquid level temperature sensor filter screen of claim 1, wherein: be provided with annular groove (15) on the circumference inner wall of mounting groove (16), be provided with annular arch (14) on the circumference outer wall of spacing ring (9), annular arch (14) and annular groove (15) joint cooperation.

3. The novel urea liquid level temperature sensor filter screen of claim 2, wherein: a group of contraction grooves (12) are uniformly distributed at the bottom of the limiting ring (9), and chamfers (13) are arranged on the outer edge of the lower port of the limiting ring (9).

4. The novel urea level temperature sensor filter screen of claim 3, wherein: an annular table (11) is arranged at the top of the limiting ring (9), and the outer edge of the annular table (11) extends out of the pipe notch (8).

5. The novel urea level temperature sensor filter screen of claim 4, wherein: the filter screen is made of PA6 nylon, and the aperture of the filter screen is 40 mu m.

6. The novel urea level temperature sensor filter screen of claim 5, wherein: the framework (1) is made of PA66 nylon.