CN206397570U - A kind of blind flange of urea pump - Google Patents
A kind of blind flange of urea pump Download PDFInfo
- Publication number
- CN206397570U CN206397570U CN201720084665.4U CN201720084665U CN206397570U CN 206397570 U CN206397570 U CN 206397570U CN 201720084665 U CN201720084665 U CN 201720084665U CN 206397570 U CN206397570 U CN 206397570U
- Authority
- CN
- China
- Prior art keywords
- nut
- urea pump
- blind flange
- flange
- urea
- 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.)
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is related to a kind of blind flange of urea pump, and the blind flange of the urea pump can guarantee that the nut above it has stronger Stability and dependability.The blind flange of the urea pump, includes and is embedded with nut on flange lid, the flange lid, it is characterised in that：The nut is made up of multistage, and being constituted between adjacent two sections has annular groove.The blind flange of this urea pump, it is embedded with the nut of multi-segment structure above, after nut is using the injection of inserts form, the bonding strength that it can be higher with the formation of blind flange body, is difficult to loosen or departs from vehicle traveling, it is ensured that the firmness that urea pump is installed.
Description
Technical field
The utility model is related to a kind of urea pump, and in particular to a kind of blind flange of urea pump.
Background technology
Urea for vehicle decomposes ammonification at a certain temperature, can be to nitrogen oxides（NOX）SCR is carried out, will
NO in waste gasXIt is reduced into N2And H2O, so as to reach the purpose of energy-saving and emission-reduction.Because the environmental protection department of various countries is proposed into one
Step reduces the oxynitrides pollution of diesel emission, is commonly called as the Europe IV standard, engine manufacturer begins to use SCR system（Select
Selecting property catalyst reduction system）To reach the requirement of environmental administration.SCR system includes urea tank and SCR catalytic reactors.SCR systems
The running of system is：When finding to have nitrogen oxides in blast pipe, the urea liquid in urea pump extracted urea tank, and convey
To injection unit, urea for vehicle is sprayed by injection unit and in SCR catalytic reactors redox reaction occurs for nitrogen oxides,
Generate free of contamination nitrogen and water vapour discharge.Because urea pump is installed onboard and is jolted with car, therefore for the jail of installation
Soundness just proposes higher requirement.General urea pump coordinates installation onboard by the nut on its blind flange and bolt, by
It is ordinary construction in nut, it, without higher bonding strength, easily causes urea pump loosening with blind flange, and influence normally makes
With.
The content of the invention
In view of the deficiency that prior art is present, the utility model innovation provides a kind of blind flange of urea pump, the urea
The blind flange of pump can guarantee that the nut above it has stronger Stability and dependability.
The blind flange of the urea pump, includes and is embedded with nut on flange lid, the flange lid, it is characterised in that：Institute
State nut to be made up of multistage, constituting between adjacent two sections has annular groove.The nut is made up of epimere, stage casing and hypomere, described
The outer surface in stage casing is in inclined-plane.The epimere of the nut is in multistage column.
A kind of blind flange of the urea pump provided according to the utility model, it is embedded with the nut of multi-segment structure, spiral shell above
After cap is using the injection of inserts form, its can with the higher bonding strength of blind flange body formation, be difficult to loosen in vehicle traveling or
Depart from, it is ensured that the firmness that urea pump is installed.
Brief description of the drawings
Fig. 1 is the top view of urea pump blind flange；
Fig. 2 is the sectional view in the A-A directions along along Fig. 1；
Fig. 3 is the sectional view of nut.
Embodiment
As shown in figs. 1 and 2, the blind flange of urea pump includes flange lid 1, nut 2 is embedded with flange lid 1, such as
Shown in Fig. 3, the nut 2 is made up of multistage, and being constituted between adjacent two sections has annular groove 23, after nut 2 is using the injection of inserts form,
Annular groove 23 is just filled, and such nut 2 just can be fixedly secured on blind flange 1.
Nut 2 of the present utility model specifically uses three stage structure, with being made up of epimere 20, stage casing 21 and hypomere 22,
Being constituted between stage casing 21 and hypomere 22 between epimere 20 and stage casing 21 and all has annular groove 23.In order that nut 2 can be more firm
Ground is embedded on flange lid 1, and the outer surface in the stage casing 21 of nut 2 of the present utility model is in inclined-plane, such epimere 20 and stage casing 21 it
Between constitute annular groove 23 depth it is deeper, and be less susceptible to be moved in the axial direction.
In addition, in order to improve the firmness of nut 2 in the axial direction, its epimere 20 of nut 2 of the present utility model is in multistage column
Shape, and hypomere 22 is in the form of a column.Epimere 20 is in that multistage column can prevent nut from moving inwards, and due to the contact of multistage column
Area is bigger, and bonding strength is also higher.
Claims (3)
1. a kind of blind flange of urea pump, includes flange lid（1）, the flange lid（1）On be embedded with nut（2）, it is special
Levy and be：The nut（2）It is made up of multistage, being constituted between adjacent two sections has annular groove（23）.
2. a kind of blind flange of urea pump according to claim 1, it is characterised in that：The nut（2）By epimere（20）、
Stage casing（21）With hypomere（22）Constitute, the stage casing（21）Outer surface be in inclined-plane.
3. a kind of blind flange of urea pump according to claim 2, it is characterised in that：The nut（2）Epimere（20）
In multistage column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720084665.4U CN206397570U (en) | 2017-01-23 | 2017-01-23 | A kind of blind flange of urea pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720084665.4U CN206397570U (en) | 2017-01-23 | 2017-01-23 | A kind of blind flange of urea pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397570U true CN206397570U (en) | 2017-08-11 |
Family
ID=59515343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720084665.4U Active CN206397570U (en) | 2017-01-23 | 2017-01-23 | A kind of blind flange of urea pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397570U (en) |
-
2017
- 2017-01-23 CN CN201720084665.4U patent/CN206397570U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 Sandao 4339 Binhai, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: Wenzhou Jinjia Auto Parts Co., Ltd. Address before: 325000 Sandao 4339 Binhai, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee before: Wenzhou Anjia Automobile Parts and Components Co., Ltd. |