CN205867695U - Urea level sensor's filter screen structure - Google Patents
Urea level sensor's filter screen structure Download PDFInfo
- Publication number
- CN205867695U CN205867695U CN201620465713.XU CN201620465713U CN205867695U CN 205867695 U CN205867695 U CN 205867695U CN 201620465713 U CN201620465713 U CN 201620465713U CN 205867695 U CN205867695 U CN 205867695U
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- CN
- China
- Prior art keywords
- filter screen
- filter
- suction pipe
- joint
- level sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an automobile -used urea level sensor's filter screen structure, joint in filter screen main part and filter screen main part, each filter screen supporter of one about wherein the filter screen main part is formed by foldable filter screen screen cloth of individual layer and the combination of plastic frame frame, apron of one forms filtration cavity to filter screen hand supporter with controlling respectively, the filter screen connects formation can be for liquid suction pipe (perhaps blast pipe) male interface, there is the locking jack catch that can lock sealing washer and locking liquid suction pipe interface inside, make the filter screen fixed, the vibration prevents because causing the filter screen to break away from, but also detachment is facilitated, be connected more reliably with the liquid suction pipe.
Description
Technical field
This utility model relates to urea for vehicle liquid level sensor art, and its basic technical features is the carbamide of sensor
Liquid filters the filter structure controlled.
Technical background
Diesel engine is widely used in all trades and professions with higher horsepower.Relative to petrol engine
Speech, also because diesel oil high temperature in cylinder body, causes higher NO_x formation and discharge, perplexs industrial circle always.Due to
People for the raising year by year of environmental requirement, the countries in the world law-making stipulation in succession discharge standard of electromotor, promote various countries
Electromotor producer is for the research of the treatment technology of tail gas.
At present, China has forced to use the electromotor of state IV standards, and coordinates corresponding tail gas disposal technique.Wherein
Global active technology path be SCR (SCR Selected Crystal Reduction) and
EGR+DPF technology is the most ripe and universal with SCR the most again.Big electromotor producer of a few family of China has all selected SCR system
Uniting this technology path, it is to utilize chemical substance to react for engine exhaust emission material, and then generates human body
Harmless material.Its chemical equation: NOx+NH3→N2+H2O(N2And H2O is material harmless in nature air).
The reacting substance of SCR is the urea liquid that one defines concentration (32.5%).And diesel oil commercial car was being run
Cheng Zhong, needs the moment to understand consumption and the storage of urea solution, and this is completed by urea liquid level sensor, and sensor is arranged on
In urea tank, sensor also participates in the work of extracted urea liquid simultaneously.Extracted urea liquid needs to prevent from sucking impurity, causes SCR
Core component blocking in system.It is often the case that solve this problem by installing drainage screen.Different filter screen structures is deposited
At bigger utilization variance.
Current filter screen structure comes with some shortcomings: it is the most firm that filter screen joint is connected with liquid suction pipe and exhaustor, exists
It is unreliable that filter screen disengages, and once caused market to complain；Because using monolayer tiling filter screen mode to cause filter screen bulk filter face
Long-pending deficiency；It is not easy to dismounting and safeguards.
Utility model content
In view of the above, this utility model is not enough for prior art, it is provided that the liquid level sensor filter of a kind of improvement
Web frame.Its main target is: readily accessible；Fixing filter screen prevents because vibration causes filter screen to depart from；It is connected with liquid suction pipe
Reliably；Higher filter efficiency (longer service life).
In order to realize above-mentioned target, this utility model adopts the following technical scheme that:
The filter structure of a kind of urea for vehicle liquid level sensor, including the joint in filter screen main body and filter screen main body, wherein
Filter screen main body forms filtrate cavity.It is characterized in that: can insert for liquid suction pipe (or exhaustor) in filter screen joint formation
Interface, interface internal has can lock sealing ring and the locking claw of locking liquid suction pipe；Filter screen main body is by the folding filter of monolayer
Net screen cloth and plastic frame combine the screen support body of each about formation, and screen support body was formed with the cover plate of left and right each
Filter chamber body；Filter screen main body is seated in screen support pallet.
As a kind of preferred version, described filter screen joint inwall is provided with anticreep and begins a theatrical performance rank, this anticreep step and inner nosepiece wall
Locking claw barb interlocks.
As a kind of preferred version, the claw limiting platform of described filter screen joint locking claw is close to outside joint oral area
Edge, allows locking claw closely lock with adapter body.
As a kind of preferred version, described filter screen joint locking claw, in the case of liquid suction pipe or exhaustor insert, can be locked
Tight liquid suction pipe or exhaustor.
As a kind of preferred version, described filter screen joint locking claw can form firm bulk, and this size supplies
Seal O slidably.
As a kind of preferred version, described filter screen joint locking claw can form firm bulk, it is to avoid city
On face, other filter screen structure (bail wire structure) causes its bail wire to come off because of operation error and bail wire is charged into and connect
Mouthful internal cause O excessive compression and damaged.
As a kind of preferred version, described filter screen joint inside configuration puts into O, and this O is placed on outside liquid suction pipe
And be in close contact with interface inwall.
As a kind of preferred version, described filter screen agent structure uses monolayer filter screen screen cloth folding mode.
As a kind of preferred version, the frame structure of each about the employing of described filter screen agent structure, filter screen screen cloth is by moulding
Glue housing is fixed and sealing-in.
As a kind of preferred version, described filter screen agent structure strainer filtering cavity (left and right each) is by the lid of left and right each
Plate and housing sealing assemble.Left and right filter screen filtration cavity by assembling be combined into filter area double, unified
Filter chamber.
As a kind of preferred version, described filter screen agent structure housing one end is provided with filter screen joint on end.
As a kind of preferred version, described filter screen main body is seated on a passive pallet.Pallet and main body
Linkage interface is convex-concave groove snap.
This utility model is compared with prior art compared with having self original feature and effectiveness.Specifically, one, it is achieved
Filtration high efficiency, prevents the foreign body obstruction SCR system such as impurity；Its two, filter screen joint is simple for structure have effectively achieved O
Sealing function, prevent because the breakage of core component O that causes of abnormal operation simultaneously；Its three, by symmetrical
Design, adds the area of drainage screen and the aesthetic property of product, adds the convenience of product maintenance simultaneously；Its four, filter screen master
About the convex-concave draw-in groove combination of body and pallet and filter screen main body, two parts fit systems make screen replacing and maintenance just
Profit perfect adaptation.
Mode below in conjunction with the accompanying drawings, is described in detail to this utility model by specific embodiment, in the hope of clear,
Simply, its effect and architectural feature and relation thereof are illustrated intuitively.
Accompanying drawing explanation
Fig. 1 is the package assembly schematic diagram of this utility model embodiment；
Fig. 2 is the filter screen left and right main body connection diagram of this utility model embodiment；
Fig. 3 is the profile of the key feature joint internal structure of this utility model embodiment.
Accompanying drawing indicates and illustrates:
10-filter screen housing 20-filter screen screen cloth
The filter screen main body 40-left side, 30-left side filter screen cover plate
Filter screen cover plate on the right of filter screen main body 60-on the right of 50-
70-filter screen joint 71-liquid suction pipe
72-claw salient point 73-claw
74-liquid suction pipe bulge 75-claw barb
76-joint step 77-claw limiting platform
78-O type circle 79-exhaustor
80-filter screen collet 81-convex-concave draw-in groove
The spacing elastic impeller of 82-firm screw 83-
84-convex-concave draw-in groove
Detailed description of the invention
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, it is shown that the basic structure of optimal enforcement example of the present utility model, it includes 10-
Filter screen main body and 60 on the right of filter screen housing, 20-filter screen screen cloth, 30-left side filter screen main body, 40-left side filter screen cover plate, 50-
The right filter screen cover plate, 70-filter screen joint and 80-filter screen collet.
As it is shown in figure 1,20--filter screen screen cloth by the complete plastic packaging of Shooting Technique in 10--filter screen housing, filter screen screen cloth exists
Can be by mould in injection moulding process, being formed to fold for filter screen screen cloth increases the surface area of filter screen；Left and right filter screen main body (diagram
30 and 50) by assembling, (pressing of convex-concave groove is connected, and coordinates supersonic welding with left and right filter screen cover plate (diagram 40 and 60) respectively
Connect) and form filter cavity.Joint injection mo(u)lding respectively is on an end face of left and right housing main body.
As in figure 2 it is shown, above-mentioned left and right filter screen main body itself defines independent filter cavity, but also need to chamber, left and right
Body connects into an entity that can filter.It is that the housing by diagram 30 and diagram 50 forms two kinds of property at two end faces
The connection of matter.One end is blind company (84), and other end is that through hole connects (81), it is achieved two cavitys become an entirety.Blind company
End is by quick insertion locking mode；Through hole end is to be inserted by convex fluted manner and appropriateness locking.
As it is shown on figure 3, described joint is inserted joint by liquid suction pipe 71, through joint locking claw (73), and press card
The bump part (72) of pawl so that claw Barb portion (75) keeps a firm hand on joint step (76)；When claw limiting platform (77) with connect
During draught animals portion outer contact with platform, it is spacing, prevents from, because misoperation causes the damage bottom claw to sealing ring, losing
Sealing function；When the bulge part (74) of liquid suction pipe touches claw salient point (72), and liquid suction pipe is insertion and puts in place；The most a little
Firmly, liquid suction pipe can be extracted, facilitate joint to dismount.O (78) has certain degree of freedom at liquid suction pipe axial direction, at drawing liquid
Pipe radial direction, can be realized sealing function by the extruding between the inwall of the external diameter of liquid suction pipe and joint.
The assembling of whole filter screen, first assembles left and right filter screen main body (30,50), pressing left and right filter screen cover plate (40 and 60) in
On the filter screen main body housing of left and right, connected by ultrasound wave；Then snap is passed through at the filter screen main body two ends, left and right after assembling
Quickly connect；3rd step, is to install filter screen on two stainless steel tubes (liquid suction pipe 71 and exhaustor 79)；Installation method is, first
O is put into, then filter screen locking claw put into joint, be inserted into liquid suction pipe and exhaustor, gradually push until
Substantially feel there is drag, illustrate that the bulge of liquid suction pipe and exhaustor puts in place, it is impossible to continue deeper into.4th, install above-mentioned
Assembly, the electronic unit protection pipe end of sensor, heat pipe and the bottom tray (filter screen collet 80) of sensor be assembled into one
Individual entirety.It is to be installed by convex-concave draw-in groove (81) mode that filter screen part is installed；Protection pipeline section is to be connected by fastening screw (82)；
Heat pipe part is the integraty contact that the spacing elastic impeller (83) by collet reinforces three.
Comprehensive explanation, the emphasis of this utility model design: filter screen filter cloth is by folding type injection molding mode, relative on market
Part at present monolayer filter cloth design can increase surface area more than 1 times, in the case of improving filter efficiency, extends the use cycle；
Filter screen main body is by left and right combination type mode, and it is many that its layout may select mode, in the case of limited space, it is achieved function is more just
Profit；The knockdown design in left and right considers quick and convenient and the motility of assembling, improves packaging efficiency；The filter screen of blank area
Locking claw is novel in design, is simultaneously achieved fool-proof design, the locking function design of barb snap close joint that claw is broken through downwards,
Also complete the functional design of O axial space degree of freedom simultaneously.Similarly, this design of joint maintains structure letter
Singly, advantage thrifty, that efficiency is high is operated.
Above-described embodiment, the most of the present utility model one of more preferably selects, and non-is to technology of the present utility model
Scope makes any restriction.Any essence for this utility model, technical characteristic etc. implement any slight change or
Equivalent variations it, the row of this utility model technical characteristic all should be belonged to.
Claims (5)
1. a filter structure for urea for vehicle liquid level sensor, including the joint in filter screen main body and filter screen main body, wherein filters
Host's body forms filtrate cavity, it is characterised in that: form the interface that can insert for liquid suction pipe and exhaustor in filter screen joint, connect
Mouth is internal the locking claw that can lock sealing ring with locking liquid suction pipe.
The filter structure of urea liquid level sensor the most according to claim 1, it is characterised in that: filter screen main body is by single-layer folded
The filter screen screen cloth of stacked and plastic frame combine the lid of the screen support body of each, screen support body and left and right each about formation
Plate forms filter cavity.
The filter structure of urea liquid level sensor the most according to claim 1, it is characterised in that: inside described connector interface
Being provided with anticreep step, this anticreep step and locking claw barb, in the case of liquid suction pipe inserts, lock liquid suction pipe, and joint connects simultaneously
Mouth inwall interlocks with locking both claws.
The filter structure of urea liquid level sensor the most according to claim 1, it is characterised in that: inside described connector interface
It is provided with location and locking claw, is close to joint oral area outer outside this locking claw, stable chi is internally formed for connector interface
Very little, the size of O is locked in a space having certain degree of freedom, it is to avoid O is hobbed and damaged.
The filter structure of urea liquid level sensor the most according to claim 1, it is characterised in that: described filter screen main body includes
The filter screen of left and right each one and housing, the filter cavity cover plate of left and right each, cover plate forms filter cavity with housing, and filter screen bottom rises
The bracket of supporting role, filter screen joint is arranged on the housing of the most each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465713.XU CN205867695U (en) | 2016-05-20 | 2016-05-20 | Urea level sensor's filter screen structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465713.XU CN205867695U (en) | 2016-05-20 | 2016-05-20 | Urea level sensor's filter screen structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205867695U true CN205867695U (en) | 2017-01-11 |
Family
ID=57687443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620465713.XU Expired - Fee Related CN205867695U (en) | 2016-05-20 | 2016-05-20 | Urea level sensor's filter screen structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205867695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757121A (en) * | 2018-05-28 | 2018-11-06 | 佛山市川东磁电股份有限公司 | A kind of filter structure of urea liquid level sensor |
-
2016
- 2016-05-20 CN CN201620465713.XU patent/CN205867695U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757121A (en) * | 2018-05-28 | 2018-11-06 | 佛山市川东磁电股份有限公司 | A kind of filter structure of urea liquid level sensor |
| CN108757121B (en) * | 2018-05-28 | 2020-06-23 | 佛山市川东磁电股份有限公司 | Filter screen structure of urea liquid level sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20210520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |