CN206988072U - Diesel motor exhaust handles the diaphragm assembly of urea pump - Google Patents

Diesel motor exhaust handles the diaphragm assembly of urea pump Download PDF

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Publication number
CN206988072U
CN206988072U CN201720838768.5U CN201720838768U CN206988072U CN 206988072 U CN206988072 U CN 206988072U CN 201720838768 U CN201720838768 U CN 201720838768U CN 206988072 U CN206988072 U CN 206988072U
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CN
China
Prior art keywords
diaphragm
seal line
valve seat
urea pump
diesel motor
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
Application number
CN201720838768.5U
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Chinese (zh)
Inventor
吴江华
李成衡
周明强
乐林贵
曾科
梅富球
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG KVD NEW ENERGY SCIENCE AND TECHNOLOGY Co Ltd
Original Assignee
ZHEJIANG KVD NEW ENERGY SCIENCE AND TECHNOLOGY Co Ltd
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Filing date
Publication date
Application filed by ZHEJIANG KVD NEW ENERGY SCIENCE AND TECHNOLOGY Co Ltd filed Critical ZHEJIANG KVD NEW ENERGY SCIENCE AND TECHNOLOGY Co Ltd
Priority to CN201720838768.5U priority Critical patent/CN206988072U/en
Application granted granted Critical
Publication of CN206988072U publication Critical patent/CN206988072U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of diaphragm assembly of diesel motor exhaust processing urea pump, including shell, drive mechanism, valve seat, valve seat bonnet, valve block is provided between valve seat and bonnet, drive mechanism includes push rod, and movable inner chamber is provided between shell and valve seat, intracavitary is provided with diaphragm in activity, diaphragm is fixedly connected to form reciprocating motion with push rod, and diaphragm is provided with the first seal line, the second seal line, and the first seal line, the both sides up and down of the second seal line abut against with valve seat, shell respectively;By setting the first seal line, the second seal line, dual-seal is formed between diaphragm and valve seat, make fluid isolation of the leakage around the seal line of diaphragm first in the second seal line of diaphragm, play double sealing effect, reasonable in design, sealing property is strong, service life length, the vacuum of urea pump is effectively increased, prevents urea liquid from leaking into outside urea pump.

Description

Diesel motor exhaust handles the diaphragm assembly of urea pump
Technical field
It the utility model is related to a kind of diesel motor exhaust processing urea pump, more particularly to a kind of diesel motor exhaust The diaphragm assembly of urea pump is handled, belongs to diesel motor exhaust treatment technology.
Background technology
Existing diesel engine must configure set of system in addition, urea and tail gas is fully reacted, to reach Meet the discharge standard of regulation;Urea exhaust system needs a high pressure, quantitative power source to be sprayed into blast pipe converter Urea, because current technology can not realize this function, so as to have impact on the development of diesel car industry.
The content of the invention
The purpose of this utility model is solve the deficiencies in the prior art, and the utility model improves a kind of structure design and closed Reason, sealing property is strong, service life is long, can effectively increase urea pump vacuum, can effectively prevent urea liquid from leaking into urine The diaphragm assembly of diesel motor exhaust processing urea pump outside plain pump.
Technical scheme is used by the utility model solves its technical problem:A kind of diesel motor exhaust handles urea The diaphragm assembly of pump, including shell, are provided with drive mechanism in the shell, and the drive mechanism includes push rod, on the shell Provided with valve seat, the valve seat is provided with bonnet, and valve block is provided between the valve seat and bonnet, is provided between the shell and valve seat Movable inner chamber, intracavitary is provided with diaphragm in the activity, and the diaphragm and push rod are fixedly connected to form reciprocating motion, on the diaphragm Provided with the first seal line, the outer ring end of the diaphragm is provided with the second seal line, first seal line, the second seal line it is upper Lower both sides abut against with valve seat, shell respectively.
Using said structure, by setting the first seal line, the second seal line, formed between diaphragm and valve seat dual close Envelope, fluid isolation of the leakage around the seal line of diaphragm first is set to play double sealing effect in the second seal line of diaphragm, Reasonable in design, sealing property is strong, service life length, effectively increases the vacuum of urea pump, prevents urea liquid from leaking To outside urea pump.
Preferably, first seal line is square structure, second seal line is circular configuration, and the valve seat exists Arc convex is provided with first seal line, first seal line becomes arcuate relief structure, institute in the presence of arc convex State valve seat and a deep-slotted chip breaker is formed under the extruding of the second seal line.Using said structure, the first seal line of diaphragm is in valve seat Arcuate relief structure is formed under arc convex extruding, so as to play the effect of the first resealing, the second seal line of diaphragm is by squeezing Pressure valve seat forms it into deep-slotted chip breaker, so as to play the effect of the second resealing, effectively increases urea pump vacuum, prevents that urea is molten Liquid is leaked into outside urea pump.
Preferably, valve seat opening position between the first seal line and the second seal line of diaphragm is provided with convex Rise, the diaphragm forms detent under the extruding of positioning convex.Using said structure, positioning convex is set on valve seat, Positioning action can be played when diaphragm assembles, and the structural stability of diaphragm can be improved.
Preferably, the diaphragm is provided with arc locating ring in the inner side of the first seal line, the valve seat is relative to arc Annular groove is provided with locating ring.Using said structure, by setting arc locating ring on diaphragm, annular is set on valve seat Groove, positioning action can be played when diaphragm assembles, and the structural stability of diaphragm can be improved.
Preferably, being embedded with attachment screw in the diaphragm, the diaphragm is fixedly connected by attachment screw with push rod. Using said structure, the assembling of diaphragm and push rod is facilitated, and is connected firmly, and also reduces overall volume.
Preferably, the diaphragm is process by SUS303, and the surface uniform fold of diaphragm has HNBR.Using above-mentioned Structure, the corrosion resistance and elasticity of diaphragm are improved, so as to improve the service life of diaphragm.
The utility model has that reasonable in design, sealing property is strong, service life is long, it is true to effectively increase urea pump Reciprocal of duty cycle, the advantages that effectively preventing urea liquid from leaking into outside urea pump.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment;
Fig. 2 is enlarged drawing at the utility model Fig. 1 A.
Embodiment
Below by specific embodiment, and with reference to accompanying drawing, the technical solution of the utility model is made further specifically It is bright.
Embodiment:
A kind of diaphragm assembly of diesel motor exhaust processing urea pump as shown in Figure 1, including shell 1, the shell 1 Interior to be provided with drive mechanism 2, the drive mechanism 2 includes push rod 21, and the shell 1 is provided with valve seat 3, and the valve seat 3 is provided with Bonnet 4, valve block 5 is provided between the valve seat 3 and bonnet 4.
Movable inner chamber 6 is provided between the shell 1 and valve seat 3, diaphragm 7, the diaphragm 7 are provided with the movable inner chamber 6 Reciprocating motion is fixedly connected to form with push rod 21, the diaphragm 7 is provided with the first seal line 71, the outer ring end of the diaphragm 7 Provided with the second seal line 72, first seal line 71, the both sides up and down of the second seal line 72 offset with valve seat 3, shell 1 respectively Connect, by setting the first seal line 71, the second seal line 72, form dual-seal between diaphragm 7 and valve seat 3, leakage is existed Fluid isolation around the seal line 71 of diaphragm 7 first plays double sealing effect, structure in the second seal line 72 of diaphragm 7 Reasonable in design, sealing property is strong, service life length, effectively increases the vacuum of urea pump, prevents urea liquid from leaking into urine Outside plain pump;Attachment screw 75 is embedded with the diaphragm 7, the diaphragm 7 is fixedly connected by attachment screw 75 with push rod 21, side Diaphragm 7 and push rod 21 assembling, and be connected firmly, and also reduce overall volume;The diaphragm 7 is processed by SUS303 Form, and the surface uniform fold of diaphragm 7 has HNBR, the corrosion resistance and elasticity of diaphragm is improved, so as to improve diaphragm Service life.
First seal line 71 is square structure, and second seal line 72 is circular configuration, and the valve seat 3 is first Arc convex 31 is provided with seal line 71, first seal line 71 becomes arcuate relief knot in the presence of arc convex 31 Structure, the valve seat 3 form a deep-slotted chip breaker 32 under the extruding of the second seal line 72, and the first seal line 71 of diaphragm 7 is in valve seat 3 Arc convex 31 forms arcuate relief structure under extruding, and so as to play the effect of the first resealing, the second seal line 72 of diaphragm 7 is logical Cross extruding valve seat 3 and form it into deep-slotted chip breaker 32, so as to play the effect of the second resealing, effectively increase urea pump vacuum, prevent Only urea liquid is leaked into outside urea pump.
The valve seat 3 opening position between the first seal line 71 and the second seal line 72 of diaphragm 7 is provided with positioning convex 33, The diaphragm 7 forms detent 73 under the extruding of positioning convex 33, and positioning convex 33 is set on valve seat 3, in 7 groups of diaphragm Positioning action can be played during dress, and the structural stability of diaphragm 7 can be improved;The diaphragm 7 is in the first seal line 71 Side is provided with arc locating ring 74, and the valve seat 3 is relative to annular groove 34 is provided with arc locating ring 74, by diaphragm 7 Arc locating ring 74 is set, annular groove 34 is set on valve seat 3, positioning action can be played when diaphragm 7 assembles, and can Improve the structural stability of diaphragm 7.
The utility model has that reasonable in design, sealing property is strong, service life is long, it is true to effectively increase urea pump Reciprocal of duty cycle, the advantages that effectively preventing urea liquid from leaking into outside urea pump.
Embodiment described above is a kind of preferable scheme of the present utility model, not the utility model is made any Formal limitation, there are other variants and remodeling on the premise of without departing from the technical scheme described in claim.

Claims (6)

1. a kind of diaphragm assembly of diesel motor exhaust processing urea pump, including shell(1), the shell(1)Interior be provided with is driven Motivation structure(2), the drive mechanism(2)Including push rod(21), the shell(1)It is provided with valve seat(3), the valve seat(3)On Provided with bonnet(4), the valve seat(3)With bonnet(4)Between be provided with valve block(5), it is characterised in that:The shell(1)With valve seat (3)Between be provided with movable inner chamber(6), the movable inner chamber(6)It is interior to be provided with diaphragm(7), the diaphragm(7)With push rod(21)It is fixed Connection, which is formed, to be moved back and forth, the diaphragm(7)It is provided with the first seal line(71), the diaphragm(7)Outer ring end be provided with the Two seal lines(72), first seal line(71), the second seal line(72)Both sides up and down respectively with valve seat(3), shell(1) Abut against.
2. the diaphragm assembly of diesel motor exhaust processing urea pump according to claim 1, it is characterised in that:Described One seal line(71)For square structure, second seal line(72)For circular configuration, the valve seat(3)In the first seal line (71)Place is provided with arc convex(31), first seal line(71)In arc convex(31)In the presence of become arcuate relief knot Structure, the valve seat(3)In the second seal line(72)Extruding under form a deep-slotted chip breaker(32).
3. the diaphragm assembly of diesel motor exhaust processing urea pump according to claim 1, it is characterised in that:The valve Seat(3)In diaphragm(7)The first seal line(71)With the second seal line(72)Between opening position be provided with positioning convex(33), it is described Diaphragm(7)In positioning convex(33)Extruding under form detent(73).
4. the diaphragm assembly of diesel motor exhaust processing urea pump according to claim 1, it is characterised in that:The film Piece(7)In the first seal line(71)Inner side be provided with arc locating ring(74), the valve seat(3)Relative to arc locating ring(74) Place is provided with annular groove(34).
5. the diaphragm assembly of diesel motor exhaust processing urea pump according to claim 1, it is characterised in that:The film Piece(7)Inside it is embedded with attachment screw(75), the diaphragm(7)Pass through attachment screw(75)With push rod(21)It is fixedly connected.
6. the diaphragm assembly of diesel motor exhaust processing urea pump according to claim 1, it is characterised in that:The film Piece(7)It is process by SUS303, and diaphragm(7)Surface uniform fold have HNBR.
CN201720838768.5U 2017-07-12 2017-07-12 Diesel motor exhaust handles the diaphragm assembly of urea pump Expired - Fee Related CN206988072U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720838768.5U CN206988072U (en) 2017-07-12 2017-07-12 Diesel motor exhaust handles the diaphragm assembly of urea pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720838768.5U CN206988072U (en) 2017-07-12 2017-07-12 Diesel motor exhaust handles the diaphragm assembly of urea pump

Publications (1)

Publication Number Publication Date
CN206988072U true CN206988072U (en) 2018-02-09

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Family Applications (1)

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CN201720838768.5U Expired - Fee Related CN206988072U (en) 2017-07-12 2017-07-12 Diesel motor exhaust handles the diaphragm assembly of urea pump

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246376A (en) * 2017-07-12 2017-10-13 浙江卡韦德新能源科技有限公司 Diesel motor exhaust handles the diaphragm assembly of urea pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246376A (en) * 2017-07-12 2017-10-13 浙江卡韦德新能源科技有限公司 Diesel motor exhaust handles the diaphragm assembly of urea pump

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180209

CF01 Termination of patent right due to non-payment of annual fee