CN204225975U - A kind of filling of the urea solution tank for SCR system assembly - Google Patents
A kind of filling of the urea solution tank for SCR system assembly Download PDFInfo
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- CN204225975U CN204225975U CN201420636273.0U CN201420636273U CN204225975U CN 204225975 U CN204225975 U CN 204225975U CN 201420636273 U CN201420636273 U CN 201420636273U CN 204225975 U CN204225975 U CN 204225975U
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- enclosing cover
- filler
- chain
- urea solution
- solution tank
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Abstract
The utility model discloses a kind of urea solution tank for SCR system filling assembly, it comprises cover and filler, described filler is arranged in urea solution tank, chain is connected with between described filler and cover, wherein, described cover comprises enclosing cover and lower enclosing cover, the center of described lower enclosing cover offers ventilative chamber, the bottom in described ventilative chamber offers several air holes, described ventilative chamber is provided with ventilated membrane in the top of described air hole, and the top of described lower enclosing cover offers several ventilating grooves and is connected in described upper enclosing cover, described filler is connected bottom it, one end of described chain is connected to the top of described upper enclosing cover rotationally, the other end is connected on described filler, described filler adopts integral structure.Above-mentioned urea solution tank filling assembly is not only easy to assembly, can guarantee that cover normally rotates; And can effectively prevent from, because cannot effectively getting rid of of gas causes tank body to expand, guaranteeing that system is normally run.
Description
Technical field
The utility model relates to SCR system, particularly relates to a kind of urea solution tank for SCR system filling assembly.
Background technique
Referring to for selective catalytic conversion system of diesel engine SCR (Selective Catalyst Reduction) is arranged in diesel engine automobile air exhausting system, and the NOx in diesel emission is catalysed and reduced into N
2and O
2catalytic reduction device, select aqueous solution of urea as reducing agent.Aqueous solution of urea is ejected in the outlet pipe of catalyzer upstream, and under the effect of exhaust gas temperature and air-flow, hydrolysis is produced as CO
2and ammonia, NOx is reduced into free of contamination nitrogen and water as reducing agent by ammonia.
Urea solution tank is requisite vitals in SCR system, at present, and the following shortcoming of filling assembly ubiquity of the existing urea solution tank for SCR system:
1) for connecting the chain of cover in cover rotary course, being easily wrapped on cover, causing cover cannot continue normal rotation;
2) tank interior gas in use can be caused to discharge, cause tank body to expand;
3) filler is formed by multiple Assembly of the parts, assembles loaded down with trivial details.
These above-mentioned shortcomings have had a strong impact on stability and the Economy of whole SCR system, become the problem that those skilled in the art are anxious to be resolved.
Model utility content
The purpose of this utility model is to provide a kind of urea solution tank for SCR system filling assembly, it has, and structure is simple, easy to assembly, exhaust is good and cover rotates good feature all the time, to solve the problems referred to above for the urea solution tank filling assembly existence of SCR system in prior art.
For reaching this object, the utility model by the following technical solutions:
A kind of filling of the urea solution tank for SCR system assembly, it comprises cover and filler, described filler is arranged in urea solution tank, chain is connected with between described filler and cover, wherein, described cover comprises enclosing cover and lower enclosing cover, the center of described lower enclosing cover offers ventilative chamber, the bottom in described ventilative chamber offers several air holes, described ventilative chamber is provided with ventilated membrane in the top of described air hole, and the top of described lower enclosing cover offers several ventilating grooves and is connected in described upper enclosing cover, described filler is connected bottom it, one end of described chain is connected to the top of described upper enclosing cover rotationally, the other end is connected on described filler, described filler comprises the filler body of integral type, the middle part of described filler body is outward extended with joint, described joint offers several attachment holes, described filler body is fixed in urea solution tank by the attachment hole on joint.
Especially, locking device is provided with between described cover and filler, described locking device comprises the locking teeth being arranged at described filler top, coordinate locking teeth to offer locking bayonet socket on the corresponding position of described upper enclosing cover, and described upper outside covering is extended with lug boss downwards in the bottom of described locking bayonet socket.
Especially, the top of described lower enclosing cover is outward extended with several dops, and coordinate the top of dop in described upper enclosing cover to be provided with several draw-in grooves, described dop is stuck in described draw-in groove and is connected in described upper enclosing cover by lower enclosing cover.
Especially, the end face center of described upper enclosing cover offers cone shape hole, described chain is connected to upper outside covering rotationally by connecting sheet and chain bolt, described connecting sheet is placed on described chain bolt, described chain is connected on described connecting sheet, the bottom interval of described chain bolt is provided with several elasticity chain pawls, and the bottom of described chain pawl is provided with chain dop, and described chain bolt is connected in described cone shape hole by chain dop.
Especially, described lower enclosing cover is connected on described filler body by worm structure and seal ring.
Especially, the bottom of described lower enclosing cover is provided with outside thread, and the top corresponding to described filler body is provided with internal thread, and the described lower outside externally threaded bottom installation seal ring that covers is connected in the internal thread of described filler body.
Especially, the top of described upper enclosing cover is upwards extended with the rotating handle being convenient to rotate, and described cone shape hole is opened on described rotating handle, and the sidewall of described upper enclosing cover is arranged at intervals with some antislip cogs.
The beneficial effects of the utility model are, compared with prior art the described filling of the urea solution tank for SCR system assembly has the following advantages:
1) one end of chain is connected to the top of described upper enclosing cover rotationally, when rotating cover, effectively preventing chain from rotating along with lid and being wrapped on lid, guaranteeing that cover normally rotates.
2) under, enclosing cover has additional ventilated membrane, effectively can arrange the size of Air permenbility like this and prevent from, because cannot effectively getting rid of of gas causes tank body to expand, affecting the works fine of SCR system.
3) filler adopts integral structure, easy to assembly, uses reliable and stable.
Accompanying drawing explanation
Fig. 1 is the perspective view of the cover of the filling of the urea solution tank for the SCR system assembly that the utility model embodiment 1 provides;
Fig. 2 is the perspective view of the filler of the filling of the urea solution tank for the SCR system assembly that the utility model embodiment 1 provides;
Fig. 3 is the perspective view of the upper enclosing cover of the filling of the urea solution tank for the SCR system assembly that the utility model embodiment 1 provides;
Fig. 4 is the perspective view of the chain bolt of the filling of the urea solution tank for the SCR system assembly that the utility model embodiment 1 provides;
Fig. 5 is the perspective view of the lower enclosing cover of the filling of the urea solution tank for the SCR system assembly that the utility model embodiment 1 provides;
Fig. 6 is the assembling section of the filling of the urea solution tank for the SCR system assembly that the utility model embodiment 1 provides;
Fig. 7 is the perspective view of the upper enclosing cover of the filling of the urea solution tank for the SCR system assembly that the utility model embodiment 2 provides;
Fig. 8 is the perspective view of the filler of the filling of the urea solution tank for the SCR system assembly that the utility model embodiment 2 provides.
In figure:
1, cover; 10, upper enclosing cover; 101, rotating handle; 102, cone shape hole; 103, antislip cog; 104, locking bayonet socket; 105, lug boss; 11, lower enclosing cover; 110, ventilative chamber; 111, air hole; 112, ventilated membrane; 113, ventilating groove; 114, dop; 2, filler; 20, filler body; 21, joint; 22, attachment hole; 23, locking teeth; 3, chain; 4, connecting sheet; 5, chain bolt; 50, chain pawl; 51, chain dop; 6, seal ring.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
Embodiment one:
Refer to shown in Fig. 1 to Fig. 6, in the present embodiment, a kind of filling of the urea solution tank for SCR system assembly comprises cover 1 and filler 2, described cover 1 comprises enclosing cover 10 and lower enclosing cover 11, the center of described lower enclosing cover 11 offers ventilative chamber 110, the bottom in described ventilative chamber 110 offers several air holes 111, described ventilative chamber 110 is provided with ventilated membrane 112 in the top of described air hole 111, and the top of described lower enclosing cover 11 offers several ventilating grooves 113 and is connected in described upper enclosing cover 10, described filler 2 is connected bottom it, the top of described lower enclosing cover 11 is outward extended with several dops 114, the top of dop 114 in described upper enclosing cover 10 is coordinated to be provided with several draw-in grooves, described dop 114 is stuck in described draw-in groove and is connected in described upper enclosing cover 10 by lower enclosing cover 11.In urea solution tank, urea is in consumption process, and pot liquid volume constantly reduces, and for maintaining tank body internal and external pressure balance, the gas having outside enters from the gap of enclosing cover on plastics 10, and the ventilated membrane 112 through cover inside enters in urea solution tank.During urea tank heating, in order to the gas pressure in compensator, in the tank body after heating, gas enters from the ventilated membrane 112 of cover inside, and on plastics, the gap place of enclosing cover 10 goes out.Can effective compensator external and internal pressure and crystallization-preventive phenomenon.
The top of described upper enclosing cover 10 is upwards extended with the rotating handle 101 being convenient to rotate, described rotating handle 101 offers cone shape hole 102, and the sidewall of described upper enclosing cover 10 is arranged at intervals with some antislip cogs 103, chain 3 is connected with between described upper enclosing cover 10 and described filler 2, described chain 3 is connected on upper enclosing cover 10 by connecting sheet 4 and chain bolt 5 rotationally, described connecting sheet 4 is placed on described chain bolt 5, described chain 3 is connected on described connecting sheet 4, the bottom interval of described chain bolt 5 is provided with several elasticity chain pawls 50, the bottom of described chain pawl 50 is provided with chain dop 51, described chain bolt 5 is connected in described cone shape hole 102 by chain dop 51, when cover rotates, described chain 3 is connected by movable between chain bolt 5 with cone shape hole 102, effectively prevent chain 3 from rotating along with lid and being wrapped on lid.
Described filler 2 comprises the filler body 20 of integral type, the middle part of described filler body 20 is outward extended with joint 21, described joint 21 offers several attachment holes 22, described filler body 20 is fixed in urea solution tank by the attachment hole 22 on joint 21, the bottom of described lower enclosing cover 11 is provided with outside thread, top corresponding to described filler body 20 is provided with internal thread, on described lower enclosing cover 11, externally threaded bottom installation seal ring 6 is connected in the internal thread of described filler body 20, the other end of described chain 3 is connected on described joint 21 by connecting sheet.
Embodiment two:
Refer to shown in Fig. 7 and Fig. 8, the difference of the present embodiment and embodiment one is: be provided with locking device between described cover 1 and filler 2, described locking device comprises the locking teeth 23 on the top being arranged at described filler body 20, locking teeth 23 is coordinated to offer microscler locking bayonet socket 104 on the corresponding position of described upper enclosing cover 10, and described upper enclosing cover 10 is extended with lug boss 105 downwards in the bottom of described locking bayonet socket 104, during locking, described locking teeth 23 is stuck in described locking bayonet socket 104, prevent cover 1 from loosening, when uncapping, enclosing cover 10 in rotation, lug boss 105 stress deformation on described upper enclosing cover 10, thus make locking teeth 23 depart from locking bayonet socket 104, realize unlocking.
Above embodiment has just set forth basic principle of the present utility model and characteristic; the utility model does not limit by above-mentioned example; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various change and change, and these changes and change all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. the filling of the urea solution tank for a SCR system assembly, it comprises cover and filler, described filler is arranged in urea solution tank, chain is connected with between described filler and cover, it is characterized in that, described cover comprises enclosing cover and lower enclosing cover, the center of described lower enclosing cover offers ventilative chamber, the bottom in described ventilative chamber offers several air holes, described ventilative chamber is provided with ventilated membrane in the top of described air hole, and the top of described lower enclosing cover offers several ventilating grooves and is connected in described upper enclosing cover, described filler is connected bottom it, one end of described chain is connected to the top of described upper enclosing cover rotationally, the other end is connected on described filler, described filler comprises the filler body of integral type, the middle part of described filler body is outward extended with joint, described joint offers several attachment holes, described filler body is fixed in urea solution tank by the attachment hole on joint.
2. the filling of the urea solution tank for SCR system assembly according to claim 1, it is characterized in that, locking device is provided with between described cover and filler, described locking device comprises the locking teeth being arranged at described filler top, coordinate locking teeth to offer locking bayonet socket on the corresponding position of described upper enclosing cover, and described upper outside covering is extended with lug boss downwards in the bottom of described locking bayonet socket.
3. the filling of the urea solution tank for SCR system assembly according to claim 1 and 2, it is characterized in that, the top of described lower enclosing cover is outward extended with several dops, coordinate the top of dop in described upper enclosing cover to be provided with several draw-in grooves, described dop is stuck in described draw-in groove and is connected in described upper enclosing cover by lower enclosing cover.
4. the filling of the urea solution tank for SCR system assembly according to claim 1 and 2, it is characterized in that, the end face center of described upper enclosing cover offers cone shape hole, described chain is connected to upper outside covering rotationally by connecting sheet and chain bolt, described connecting sheet is placed on described chain bolt, described chain is connected on described connecting sheet, the bottom interval of described chain bolt is provided with several elasticity chain pawls, the bottom of described chain pawl is provided with chain dop, and described chain bolt is connected in described cone shape hole by chain dop.
5. the filling of the urea solution tank for SCR system assembly according to claim 1, it is characterized in that, described lower enclosing cover is connected on described filler body by worm structure and seal ring.
6. the filling of the urea solution tank for SCR system assembly according to claim 5, it is characterized in that, the bottom of described lower enclosing cover is provided with outside thread, top corresponding to described filler body is provided with internal thread, and the described lower outside externally threaded bottom installation seal ring that covers is connected in the internal thread of described filler body.
7. the filling of the urea solution tank for SCR system assembly according to claim 4, it is characterized in that, the top of described upper enclosing cover is upwards extended with the rotating handle being convenient to rotate, described cone shape hole is opened on described rotating handle, and the sidewall of described upper enclosing cover is arranged at intervals with some antislip cogs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636273.0U CN204225975U (en) | 2014-10-29 | 2014-10-29 | A kind of filling of the urea solution tank for SCR system assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636273.0U CN204225975U (en) | 2014-10-29 | 2014-10-29 | A kind of filling of the urea solution tank for SCR system assembly |
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| Publication Number | Publication Date |
|---|---|
| CN204225975U true CN204225975U (en) | 2015-03-25 |
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|---|---|---|---|
| CN201420636273.0U Active CN204225975U (en) | 2014-10-29 | 2014-10-29 | A kind of filling of the urea solution tank for SCR system assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373178A (en) * | 2014-10-29 | 2015-02-25 | 凯龙高科技股份有限公司 | Urea solution tank filling assembly used for SCR system |
| CN105089751A (en) * | 2015-08-31 | 2015-11-25 | 凯龙高科技股份有限公司 | Urea solution tank cover structure |
-
2014
- 2014-10-29 CN CN201420636273.0U patent/CN204225975U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373178A (en) * | 2014-10-29 | 2015-02-25 | 凯龙高科技股份有限公司 | Urea solution tank filling assembly used for SCR system |
| CN105089751A (en) * | 2015-08-31 | 2015-11-25 | 凯龙高科技股份有限公司 | Urea solution tank cover structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |