CN105281281B - A kind of urea sensor outgoing line sealing structure - Google Patents
A kind of urea sensor outgoing line sealing structure Download PDFInfo
- Publication number
- CN105281281B CN105281281B CN201510793032.6A CN201510793032A CN105281281B CN 105281281 B CN105281281 B CN 105281281B CN 201510793032 A CN201510793032 A CN 201510793032A CN 105281281 B CN105281281 B CN 105281281B
- Authority
- CN
- China
- Prior art keywords
- plug
- signal wire
- electron
- electron tube
- sealing
- 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.)
- Active
Links
Abstract
A kind of urea sensor outgoing line sealing structure, including electron tube and plastic head, electron tube is provided with floating drum, electron plate is provided with electron tube, it is cased with electron plate pipe, electron plate pipe having signal wire extraction outside electron plate, middle part is provided with middle plug in electron tube, electron plate passes through middle plug, is interference fitted with middle plug；Electron tube upper end is provided with top cement plug, and top cement plug passes through hole provided with signal wire, and signal wire passes through top cement plug by signal wire through hole, and signal wire wears vias inside provided with annular boss, and the internal diameter of annular boss is less than the line footpath of signal wire；Top cement plug top is inoculated with fluid sealant；Plastic head is provided with outlet sealing-plug, and signal wire is wrapped with wire harness crust, and the signal wire for being enclosed with wire harness crust passes through outlet sealing-plug, and wire harness crust is interference fitted with outlet sealing-plug, and one end that signal wire enters linear sealing plug is inoculated with fluid sealant.Good sealing effect of the present invention.
Description
Technical field
The present invention relates to a kind of urea sensor outgoing line sealing structure.
Background technology
Urea sensor exports liquid level high-low signal by tongue tube closure, tongue tube be welded on one it is rectangular
In PCBA board, connected between multiple tongue tubes, the pipe of PCBA outer wrap layer of transparent PP materials（Abbreviation PP is managed）, PP pipes two
Head is fixed and sealed with plastic plug, then PP pipes are inserted into inside stainless steel electron tube, allows the floating drum equipped with magnet to pass through stainless
Steel electron tube, floating drum can float over liquid surface, and its inner magnet causes tongue tube to close by magnetic, so as to there is different height liquid
Surface resistance value is exported.
Wire harness is drawn in PCBA upper ends, meets Amp（AMP（An Pu）, it is Tyco Electronics（Tyco Electronics Corp）It is located at
A Massachusetts, United States Waltham reputable brand）Tab terminal output signal, wire harness needs guiding through plastic head and connected with outside
Connect, thus need to carry out encapsulation process in the leading-out terminal of wire harness.
The encapsulation process of existing urea sensor wire harness leading-out terminal is not thorough, and sealing effectiveness is poor, and urea is influenceed sometimes
The use of sensor.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of above-mentioned background technology there is provided a kind of good sealing effect
Urea sensor outgoing line sealing structure.
The present invention solve its technical problem use technical scheme be, a kind of urea sensor outgoing line sealing structure, including
Electron tube and plastic head, the electron tube, which is provided with floating drum, electron tube, is provided with electron plate, and electron plate is cased with outside the electron plate
There is middle part in signal wire extraction, the electron tube to be provided with middle plug on pipe, electron plate pipe, the electron plate passes through middle plug, with
Middle plug interference fit；The electron tube upper end is provided with top cement plug, and top cement plug passes through hole, the signal wire provided with signal wire
Top cement plug is passed through through hole by signal wire, signal wire wears vias inside provided with annular boss, and the internal diameter of annular boss is less than letter
The line footpath of number line；The top cement plug top is inoculated with fluid sealant；The plastic head is provided with outlet sealing-plug, the signal wire outsourcing
Wire harness crust is wrapped with, the signal wire for being enclosed with wire harness crust passes through outlet sealing-plug, the wire harness crust and outlet sealing-plug mistake
It is full of cooperation, one end that the signal wire enters linear sealing plug is inoculated with fluid sealant.
Further, the contact surface of the plastic head and outlet sealing-plug is provided with seal convexity, the outlet sealing-plug
Provided with the sealed groove being adapted with seal convexity, seal convexity is inserted in sealed groove, fitted closely with sealed groove.
Further, the end of the signal wire, which is provided with joint protective sleeve, joint protective sleeve, is provided with joint.
Further, the electron plate pipe is made of polypropylene.
Further, the electron tube is made of stainless steel.
Compared with prior art, advantages of the present invention is as follows：
Using multi-layer sealing structure, electron plate is interference fitted with middle plug so that electron plate is in electron plate pipe internal structure
Stable, nothing is rocked；The signal wire of top cement plug passes through hole inner sealing line footpath so that signal wire is in compression through hole with signal wire
State, it is ensured that a certain amount of compression performance；Top cement plug top is inoculated with fluid sealant, increase overall tightness and stability；Outside wire harness
Skin is interference fitted with outlet sealing-plug so that wire harness crust is sealed with outlet sealing-plug；Signal wire enters one end of linear sealing plug
It is inoculated with fluid sealant, increase overall tightness and stability；The contact surface of plastic head and outlet sealing-plug is provided with seal convexity, goes out
Linear sealing is beyond the Great Wall provided with the sealed groove being adapted with seal convexity, and seal convexity is inserted in sealed groove, is pasted with sealed groove
Close close, increase plastic head and outlet sealing-plug sealing property.
Brief description of the drawings
Fig. 1 is the explosive view of the embodiment of the present invention.
Fig. 2 is the top view of embodiment illustrated in fig. 1.
Fig. 3 is the front view of embodiment illustrated in fig. 1.
Fig. 4 is Fig. 3 A-A sectional views.
Fig. 5 is Fig. 4 partial enlarged drawing.
In figure：1-joint, 2-joint protective sleeve, 3-wire harness crust, 4-outlet sealing-plug, 5-signal wire, 6-on
Plug, 7-middle plug, 8-electron plate, 9-electron plate pipe, 10-electron tube, 11-plastic head, 12-floating drum.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention.
Reference picture 1, Fig. 2, the present embodiment include electron tube 10 and plastic head 11, and electron tube 10 is made of stainless steel, electricity
Sub- pipe 10, which is provided with floating drum 12, electron tube 10, is provided with electron plate 8, is cased with electron plate pipe 9 outside electron plate 8, electron plate pipe 9 is used
Polypropylene（Polypropylene, abbreviation PP）It is made, has signal wire 5 to draw on electron plate pipe 9, middle part is provided with electron tube 10
Middle plug 7, electron plate 8 passes through middle plug 7, is interference fitted with middle plug 7；The upper end of electron tube 10 is provided with top cement plug 6, top cement plug
6 pass through hole provided with signal wire, and signal wire 5 passes through top cement plug 6, reference picture 3, Fig. 4, Fig. 5, signal wire by signal wire through hole
Vias inside is worn provided with annular boss, the internal diameter of annular boss is less than the line footpath of signal wire 5 so that signal wire 5 is worn with signal wire
Vias inside seals line footpath, signal wire 5 and annular boss formation sealed extruded face；The top of top cement plug 6 is inoculated with fluid sealant, strengthens whole
Body sealing and stability；Plastic head 11 is provided with outlet sealing-plug 4, and plastic head 11 on the contact surface of outlet sealing-plug 4 with setting
There is seal convexity, outlet sealing-plug 4 is provided with the sealed groove being adapted with seal convexity, seal convexity insertion sealed groove
It is interior, fitted with sealed groove closely, signal wire 5 is wrapped with wire harness crust 3, the signal wire 5 for being enclosed with wire harness crust 3 is passed through out
Linear sealing plug 4, wire harness crust 3 is interference fitted with outlet sealing-plug 4, and one end that signal wire 5 enters linear sealing plug 4 is inoculated with sealing
Glue；The end of signal wire 5, which is provided with joint protective sleeve 2, joint protective sleeve 2, is provided with joint 1.
The present invention uses multi-layer sealing structure, and electron plate 8 is interference fitted with middle plug 7 so that electron plate 8 is in electron plate pipe
9 internal structures are stable, and nothing is rocked；The signal wire of top cement plug 6 passes through hole inner sealing line footpath so that signal wire passes through hole and signal
Line 5 is in compressive state, it is ensured that a certain amount of compression performance；The top of top cement plug 6 is inoculated with fluid sealant, increases overall tightness and steady
It is qualitative；Wire harness crust 3 is interference fitted with outlet sealing-plug 4 so that wire harness crust 3 is sealed with outlet sealing-plug 4；Signal wire 5 enters
The one end for entering linear sealing plug 4 is inoculated with fluid sealant, increase overall tightness and stability；Plastic head 11 connects with outlet sealing-plug 4
Contacting surface is provided with seal convexity, and outlet sealing-plug 4 is provided with the sealed groove being adapted with seal convexity, and seal convexity insertion is close
Seal in groove, fit with sealed groove closely, increase plastic head 11 and outlet sealing-plug 4 sealing property.
The installation process of urea sensor with sealing structure of the present invention is as follows：
1st, tongue tube is welded on successively on the corresponding points of electron plate 8 position, and ensures that welding is good；
2nd, middle plug 7 is worn to the upper end relevant position of electron plate 8；
3rd, two strands of signal wires 5 are taken, crust is peelled off, interior lines hole are passed through into through the signal wire of top cement plug 6, and be welded on electronics
The upper end correspondence position of plate 8（Wire harness crust 3 passes through outlet sealing-plug 4）；
4th, the electron plate pipe 9 of corresponding length is taken, primer plug is installed in the bottom of electron tube 10；
5th, the electron plate 8 being welded is inserted inside electron plate pipe 9, the bottom of electron plate 8 is contacted with primer plug, top cement plug
6 fill in inside electron plate pipe 9；
6th, the electron plate pipe 9 for assembling electron plate 8 is inserted into inside electron tube 10, and by outlet sealing-plug 4 extrude to
The relevant position of plastic head 11；
7th, the groove of top cement plug 6 pours into deployed fluid sealant.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these modifications and change
Type is within the scope of the claims in the present invention and its equivalent technologies, then these modifications and variations are also in protection scope of the present invention
Within.
The prior art that the content not being described in detail in specification is known to the skilled person.
Claims (9)
1. a kind of urea sensor outgoing line sealing structure, including electron tube（10）And plastic head（11）, the electron tube（10）On
Provided with floating drum（12）, electron tube（10）It is interior to be provided with electron plate（8）, the electron plate（8）It is cased with electron plate pipe outside（9）, electron plate
Pipe（9）On have signal wire（5）Draw, it is characterised in that：The electron tube（10）Interior middle part is provided with middle plug（7）, the electronics
Plate（8）Through middle plug（7）, with middle plug（7）Interference fit；The electron tube（10）Upper end is provided with top cement plug（6）, gluing
Plug（6）Hole, the signal wire are passed through provided with signal wire（5）Top cement plug is passed through through hole by signal wire（6）, signal wire passes through
Annular boss is provided with inside hole, the internal diameter of annular boss is less than signal wire（5）Line footpath；The top cement plug（6）Top is inoculated with close
Sealing；The plastic head（11）It is provided with outlet sealing-plug（4）, the signal wire（5）It is wrapped with wire harness crust（3）, parcel
There is wire harness crust（3）Signal wire（5）Through outlet sealing-plug（4）, the wire harness crust（3）With outlet sealing-plug（4）Interference
Coordinate, the signal wire（5）Into linear sealing plug（4）One end be inoculated with fluid sealant.
2. urea sensor outgoing line sealing structure as claimed in claim 1, it is characterised in that：The plastic head（11）With outlet
Sealing-plug（4）Contact surface be provided with seal convexity, the outlet sealing-plug（4）Provided with the sealing being adapted with seal convexity
In groove, seal convexity insertion sealed groove, fitted closely with sealed groove.
3. urea sensor outgoing line sealing structure as claimed in claim 1 or 2, it is characterised in that：The signal wire（5）End
Portion is provided with joint protective sleeve（2）, joint protective sleeve（2）It is interior to be provided with joint（1）.
4. urea sensor outgoing line sealing structure as claimed in claim 1 or 2, it is characterised in that：The electron plate pipe（9）Adopt
It is made of polypropylene.
5. urea sensor outgoing line sealing structure as claimed in claim 3, it is characterised in that：The electron plate pipe（9）Using
Polypropylene is made.
6. urea sensor outgoing line sealing structure as claimed in claim 1 or 2, it is characterised in that：The electron tube（10）Adopt
It is made of stainless steel.
7. urea sensor outgoing line sealing structure as claimed in claim 3, it is characterised in that：The electron tube（10）Using not
Rust steel is made.
8. urea sensor outgoing line sealing structure as claimed in claim 4, it is characterised in that：The electron tube（10）Using not
Rust steel is made.
9. urea sensor outgoing line sealing structure as claimed in claim 5, it is characterised in that：The electron tube（10）Using not
Rust steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510793032.6A CN105281281B (en) | 2015-11-18 | 2015-11-18 | A kind of urea sensor outgoing line sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510793032.6A CN105281281B (en) | 2015-11-18 | 2015-11-18 | A kind of urea sensor outgoing line sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105281281A CN105281281A (en) | 2016-01-27 |
| CN105281281B true CN105281281B (en) | 2017-07-28 |
Family
ID=55149838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510793032.6A Active CN105281281B (en) | 2015-11-18 | 2015-11-18 | A kind of urea sensor outgoing line sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105281281B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045217A (en) * | 2018-01-17 | 2018-05-18 | 中国重汽集团济南动力有限公司 | A kind of light vapor vehicle oil level sensor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820378A1 (en) * | 1988-06-15 | 1989-12-21 | Wabco Westinghouse Fahrzeug | CABLE GLANCE |
| US6185994B1 (en) * | 1998-12-16 | 2001-02-13 | Chung-Ho Liang | Oil level detector for detecting the oil level in the oil tank of a vehicle |
| DE102008042991A1 (en) * | 2008-10-21 | 2010-04-22 | Robert Bosch Gmbh | Cable duct sealing device for electrical connection cable used for contacting sensor element of exhaust gas sensor, has sealing body integratedly connected with cable and including undercut for fastening body to duct |
| CN101476918B (en) * | 2009-01-19 | 2010-09-15 | 杭州永富电子仪表有限公司 | Oil quantity sensor of vehicle oil pump |
| CN102192773A (en) * | 2011-03-09 | 2011-09-21 | 潍柴动力股份有限公司 | Urea liquid level sensor |
| CN202182757U (en) * | 2011-08-11 | 2012-04-04 | 陕西德仕奥联汽车电子电器有限责任公司 | Urea liquid level sensor |
| DE102012201903A1 (en) * | 2012-02-09 | 2013-08-14 | Robert Bosch Gmbh | exhaust gas sensor |
| CN205104885U (en) * | 2015-11-18 | 2016-03-23 | 湖南菲尔斯特传感器有限公司 | Urea sensor seal structure that is qualified for next round of competitions |
-
2015
- 2015-11-18 CN CN201510793032.6A patent/CN105281281B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105281281A (en) | 2016-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105281281B (en) | A kind of urea sensor outgoing line sealing structure | |
| CN205104885U (en) | Urea sensor seal structure that is qualified for next round of competitions | |
| CN206468934U (en) | The ocean oil delivery hose of the baffle ring containing rubber | |
| CN201246554Y (en) | Corrugated tube joint | |
| CN103287752B (en) | A kind of simple water-fetching device being applicable to bottled water | |
| CN202822980U (en) | Filter bottle component | |
| CN203893869U (en) | Sensor with excellent tightness | |
| CN206628301U (en) | A kind of high waterproof high resiliency electric wire | |
| CN2921795Y (en) | Capacitive liquid level liquid temperature sensing device | |
| CN103968870B (en) | A kind of sensor and its encapsulating method | |
| CN207246625U (en) | The connector and connection system of a kind of hose and equipment | |
| CN205228621U (en) | Stifled core is sealed to two withholding | |
| CN106439328A (en) | Sealing ring mounting structure of water pipe connector and mounting method of sealing ring mounting structure | |
| CN207719944U (en) | Motor lead-out wire waterproof column cap | |
| CN206311147U (en) | Vortex flowmeter | |
| CN206440841U (en) | A kind of metal detector probe | |
| CN206458941U (en) | A kind of flexible sealing structure of outlet device flexible pipe | |
| CN204532410U (en) | The device of sustainable directly monitoring gas discharge drilling sealing effect | |
| CN206036414U (en) | Sealing plug | |
| CN202298659U (en) | Connection structure for base of inspection well and pipelines | |
| CN214145399U (en) | Integral cable coupling protector | |
| CN211422582U (en) | Sealed intubate and gas injection water injection tubular column | |
| CN108005585A (en) | A kind of built-in/external conversation sealing connector of downhole cable | |
| CN108254097B (en) | Temperature liquid level sensor and sensor mounting structure | |
| CN208816056U (en) | A kind of oil field screw-type tubing nipple of the outer silk of double end |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |