CN202182757U - Urea liquid level sensor - Google Patents
Urea liquid level sensor Download PDFInfo
- Publication number
- CN202182757U CN202182757U CN2011202895323U CN201120289532U CN202182757U CN 202182757 U CN202182757 U CN 202182757U CN 2011202895323 U CN2011202895323 U CN 2011202895323U CN 201120289532 U CN201120289532 U CN 201120289532U CN 202182757 U CN202182757 U CN 202182757U
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- urea
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- buckle
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Abstract
The utility model discloses a urea liquid level sensor comprising an end head, wherein the end head comprises an end head top board, a lower side of the end head top board is provided with five installing through holes, one of the installing through holes is opened downwards as a urea liquid inlet channel, a urea liquid outlet pipe, a data pipe and heating pipes are correspondingly arranged in the other four installing through holes through annular lugs and end sleeves arranged on pipe bodies; the lower side of the end head top board is also provided with a plurality of end head buckles and end head sealing rings; the end head also comprises a retaining ring, a retaining ring bottom plate of the retaining ring is provided with five retaining ring through holes, bottoms of the annular lugs are all abutted against the corresponding retaining ring through holes; and a plurality of h-shaped buckles are uniformly arranged around an edge of the retaining ring bottom plate, a rectangle frame of the each h-shaped buckle is bucked with the each end head buckle, and a top vertical section of the each h-shaped buckle is abutted against the each end head sealing ring. Compared with the prior art, the urea liquid level sensor of the utility model has the advantages of compact structure, good sealing effect, and convenient installation.
Description
Technical field
The utility model belongs to the liquid level sensor technical field, is specifically related to a kind of urea level sensor.
Background technology
Along with state IV emission standard is implemented closing on of time, big cities such as domestic Beijing, Shenzhen, Shanghai have begun to carry out state IV standards in advance.
Simultaneously, domestic medium and heavy lorry, passenger vehicle, the most of SCR technology path that adopts of public transit vehicle reach the requirement of state IV emission standard at present, and therefore, the required automobile-used urea liquid of SCR system becomes the consumables that are equal to diesel oil.Its sensor of supplying urea for exhaust gas processing device adopts ripe resistance value to understand the amount of urea liquid.
Urea sensor has two big functions, and the one, be the exhaust gas processing device solution of supplying urea, the liquid level of monitoring urea liquid is so that solution what the driver understands; The 2nd, utilize the chilled water of engine that urea liquid is heated in cold season, prevent that it from freezing, thereby can normally use.The temperature of solution can record through the thermistor in the circuit.
Working medium is that concentration is 32.5% aqueous solution of urea (indigo plant claimed to add in term, and English is Adblue), sprays through water pump specific on the automobile, issues biochemical reaction with oxides of nitrogen in the motor exhaust in hot conditions:
Thereby reach the purpose that reduces discharging.Simultaneously, guarantee that through setting-up time, control maximum temperature urea liquid melts and can at high temperature not be decomposed under the situation of freezing.Can also itself and whole-control system be mated through the Control current size.
Existing urea level sensor exists sealing not to be guaranteed, and the not high shortcoming of structure integration.
Summary of the invention
The purpose of the utility model provides a kind of urea level sensor, compared with prior art, compact conformation, good sealing effect, and easy for installation.
The technical scheme that the utility model adopted is; Comprise the termination; The top of termination is equipped with water inlet joint, water delivering orifice joint, urea outlet connection, urea inlet attack and wire harness, and the below of termination is equipped with urea drain pipe, data pipe and back-shaped aciculiform heating tube, and the termination comprises the termination top board; The below of termination top board is provided with five highly identical installation through holes; One of them installation through holes is gone into the liquid passage as urea and is opened setting downwards, and urea drain pipe, data pipe and heating tube correspondence are installed in other four installation through holes, wherein; Be provided with annular projection portion on the body of urea drain pipe, data pipe and heating tube; And all be set with end cover outside the body above annular projection portion, and each end cover installation through holes corresponding with it matches, and it is concordant that each annular projection portion is positioned at bottom and both bottom surfaces of its corresponding installation through holes; Below the top board of termination and around the outside of five installation through holes, evenly be provided with the termination buckle of a plurality of rectangular shapes, a termination O-ring seal is installed above each termination buckle;
Also comprise the button circle that is installed in the below, termination; The button circle comprises the button circle base plate that is arranged on each installation through holes below; Have five button ring through hole on the button circle base plate; The positions of five button ring through hole are with big or small corresponding with each installation through holes, and the bottom surface of annular projection portion all is against its corresponding buckleing on the ring through hole on urea drain pipe, data pipe and the heating tube, and the body of urea drain pipe, data pipe and heating tube all passes its corresponding ring through hole of buckleing and is provided with downwards; Edge around button circle base plate evenly is provided with a plurality of " h " shape buckle, and rectangle frame and each termination buckle of each " h " shape buckle are interlocked, and the top of each " h " shape buckle vertically section is against on the O-ring seal of termination.
Each holds the up-small and down-big conical by its shape that is shaped as of cover.
Each end overlaps and is provided with end cover O-ring seal between the installation through holes corresponding with it.
The below of termination top board and one annular slab is arranged in the arranged outside of five installation through holes, a plurality of terminations buckle all is arranged on this annular slab.
The top, termination is equipped with the noise reduction cap.
The bottom of data pipe is fixed with the bottom dome, and the below of bottom dome is provided with filter screen, and said bottom dome is passed in the bottom of urea drain pipe, and is connected with filter screen.
Between termination and water inlet joint, water delivering orifice joint, urea outlet connection and the urea inlet attack stop brace is installed all.
On the data pipe oil float is installed, and on the data pipe and be positioned at button circle below be installed with the float block.
The beneficial effect of the utility model is:
1, on the body of heating tube, urea pipe and data pipe, annular projection portion is set all, the button circle is set below the termination, have the button ring through hole on the button circle base plate; Cooperation through button ring through hole and annular projection portion; With the position of restriction heating tube, urea drain pipe and data pipe, go up cooperating of " h " shape buckle and termination buckle through button circle at last, with realization heating tube, urea drain pipe and the fixed installation of data pipe on the termination; Simple in structure, easy to operate.
2, on the body of heating tube, urea drain pipe and data pipe, be set with the end cover of conical by its shape, and through end cover O-ring seal, to realize the sealing between heating tube, urea drain pipe and data pipe and the termination.
3, the design of " h " shape buckle on the button circle; Not only satisfy the connection between button circle and the termination; Also be used for realizing the installation of the utility model on urea box; Specifically the star installing port matches on exterior contour through rectangle frame on " h " shape buckle and the urea box, and it is simple in structure, and is easy to operate.And, satisfy sealing requirements through being arranged on the termination O-ring seal.
4, the noise reduction cap is installed on the termination, and be directly installed on the urea box with the noise reduction cap of prior art and compare, compact conformation, integrated level is high, and erasure effect is better.
Description of drawings
Fig. 1 is the structural representation of the utility model urea level sensor;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the structural representation of the termination in the utility model;
Fig. 4 is the structural representation of the button circle in the utility model;
Wherein, 1. water inlet joint, 2. urea outlet connection, 3. noise reduction cap, 4. float block, 5. urea drain pipe; 6. data pipe, 7. oil float, 8. urea inlet attack, 9. water delivering orifice joint, 10. wire harness, 11. terminations; 11-1. the termination top board, 11-2. annular slab, 12. heating tubes, 13. bottom domes, 14. filter screens, 15. ends cover O-ring seal; 16. the termination O-ring seal, 17. end covers, 18. stop braces, 19. button circles, 20. termination buckles, 21. annular projection portions; 22. installation through holes, the 22-1. first heating tube installation through holes, the 22-2. second heating tube installation through holes, 22-3. data pipe installation through holes, 22-4. urea is gone into the liquid installation through holes, 22-5. urea drain pipe installation through holes; " 23. h " shape buckle, vertical section of 23-1. top, 23-2. rectangle frame, 24. button circle base plates, 25. button ring through hole; 25-1. the first heating pipe thread ring through hole, the 25-2. second heating pipe thread ring through hole, 25-3. data pipe thread ring through hole, 25-4. urea is gone into liquid and is buckled ring through hole, 25-5. urea fluid pipe thread ring through hole.
Embodiment
As depicted in figs. 1 and 2; A kind of urea level sensor of the utility model; Comprise termination 11; The top of termination 11 is equipped with water inlet joint 1, water delivering orifice joint 9, urea outlet connection 2, urea inlet attack 8, wire harness 10 and noise reduction cap 3, and the below of termination 11 is equipped with urea drain pipe 5, data pipe 6 and back-shaped aciculiform heating tube 12, and the two ends of back-shaped aciculiform heating tube 12 are connected with water inlet joint 1, water delivering orifice joint 9 respectively; Urea drain pipe 5 is connected with urea outlet connection 2, and data pipe 6 is connected with wire harness 10.
In conjunction with shown in Figure 3; Termination 11 comprises termination top board 11-1; The below of termination top board 11-1 is provided with five highly identical installation through holes 22, and these five installation through holes 22 are respectively the first heating tube installation through holes 22-1, the second heating tube installation through holes 22-2, data pipe installation through holes 22-3, urea and go into liquid installation through holes 22-4 and urea drain pipe installation through holes 22-5.Wherein, urea is gone into liquid installation through holes 22-4 and is gone into the liquid passage as urea and open setting downwards, and the upper end that urea is gone into liquid installation through holes 22-4 is connected with urea inlet attack 8.Be provided with annular projection portion 21 on the body of urea drain pipe 5, data pipe 6 and heating tube 12, wherein,, therefore, have two annular projection portions 21 on the heating tube 12 because heating tube 12 is back-shaped aciculiform; On the body of urea drain pipe 5, data pipe 6 and heating tube 12; Above the annular projection portion 21 that is positioned at correspondence, all be set with end cover 17; Each end cover 17 matches with the cavity shape of corresponding installation through holes 22; The shape of each end cover 17 is up-small and down-big conical by its shape, and between each end cover 17 installation through holes 22 corresponding with it, is provided with end and overlaps O-ring seal 15.It is concordant that each annular projection portion 21 is positioned at bottom and both bottom surfaces of its corresponding installation through holes 22.
Below the top board 11-1 of termination and around the arranged outside that the first heating tube installation through holes 22-1, the second heating tube installation through holes 22-2, data pipe installation through holes 22-3, urea are gone into liquid installation through holes 22-4 and urea drain pipe installation through holes 22-5, one annular slab 11-2 is arranged; Evenly be provided with the termination buckle 20 of a plurality of rectangular shapes on this annular slab 11-2, a termination O-ring seal 16 is installed above each termination buckle 20.
In conjunction with shown in Figure 4; 11 belows, termination are provided with button circle 19; Button circle 19 comprise be arranged on that the first heating tube installation through holes 22-1, the second heating tube installation through holes 22-2, data pipe installation through holes 22-3, urea go into liquid installation through holes 22-4 and urea drain pipe installation through holes 22-5 below buckle circle base plate 24; Have five button ring through hole 25 on the button circle base plate 24, these five button ring through hole 25 are respectively the first heating pipe thread ring through hole 25-1, the second heating pipe thread ring through hole 25-2, data pipe thread ring through hole 25-3, urea and go into liquid and buckle ring through hole 25-4 and urea fluid pipe thread ring through hole 25-5.Wherein, the first heating pipe thread ring through hole 25-1 is corresponding with the first heating tube installation through holes 22-1, and the second heating pipe thread ring through hole 25-2 is corresponding with the second heating tube installation through holes 22-2, and the installation site that all is used for limiting heating tube 12; Data pipe thread ring through hole 25-3 is corresponding with data pipe installation through holes 22-3, and all is used for the installation site of restricting data pipe 6; Urea is gone into liquid and is buckled ring through hole 25-4 and urea to go into liquid installation through holes 22-4 corresponding, and is used for all realizing that urea goes into the open-minded of liquid passage; Urea fluid pipe thread ring through hole 25-5 is corresponding with urea drain pipe installation through holes 22-5, and the installation site that all is used for limiting urea drain pipe 5.And the installation site of each body restriction finally is that bottom surface through the annular projection portion 21 on each body is against on its corresponding button ring through hole and realizes.The body of urea drain pipe 5, data pipe 6 and heating tube 12 all passes its corresponding ring through hole of buckleing and is provided with downwards.
Edge around button circle base plate 24 evenly is provided with a plurality of " h " shape buckle 23, and rectangle frame 23-2 and said each termination buckle 20 of each " h " shape buckle 23 are interlocked, and the top of each " h " shape buckle 23 vertically section 23-1 is against on the termination O-ring seal 16.
The bottom of data pipe 6 is fixed with bottom dome 13, and the below of bottom dome 13 is provided with filter screen 14, and bottom dome 13 is passed in the bottom of urea drain pipe 5, and is connected with filter screen 14.
Between termination 11 and water inlet joint 1, water delivering orifice joint 9, urea outlet connection 2 and the urea inlet attack 8 stop brace 18 is installed all.Oil float 7 is installed on the data pipe 6, and on the data pipe 6 and be positioned at button circle 19 below be installed with float block 4.
The utility model can be installed into the star installing port of urea box through " h " shape buckle 23 of button circle in use, and the utility model is turned an angle, and " h " shape buckle 23 of button circle and the locking of fuel tank star installing port are got final product.During work, hot water gets into from water inlet joint 1, gives the heating of the urea liquid in the urea box through heating tube 12; Guarantee that urea liquid can use in normal temperature range; And the variation of height that can be through oil float 7 on the data pipe 6 converts height value into resistance value, is reflected on the panel board; Like this, the capacity of judging urea liquid through the size and the variation of resistance value.
The utility model compact conformation, good looking appearance, simple and reliable during installation, data stabilization can guarantee request for utilization fully.
Claims (8)
1. urea level sensor; Comprise termination (11); The top of said termination (11) is equipped with water inlet joint (1), water delivering orifice joint (9), urea outlet connection (2), urea inlet attack (8) and wire harness (10); The below of said termination (11) is equipped with urea drain pipe (5), data pipe (6) and back-shaped aciculiform heating tube (12), it is characterized in that, said termination (11) comprise termination top board (11-1); The below of said termination top board (11-1) is provided with highly identical five installation through holes (22); One of them installation through holes (22) is gone into the liquid passage as urea and is opened setting downwards, and said urea drain pipe (5), data pipe (6) and heating tube (12) correspondence are installed in other four installation through holes (22), wherein; Be provided with annular projection portion (21) on the body of said urea drain pipe (5), data pipe (6) and heating tube (12); And outside the body of said annular projection portion (21) top, all be set with end cover (17), and said each end cover (17) installation through holes (22) corresponding with it matches, and bottom and both bottom surfaces that said each annular projection portion (21) is positioned at its corresponding installation through holes (22) are concordant; The below of top board (11-1) and evenly be provided with the termination buckle (20) of a plurality of rectangular shapes around the outside of said five installation through holes (22) in said termination is equipped with a termination O-ring seal (16) in the top of said each termination buckle (20);
Also comprise the button circle (19) that is installed in below, said termination (11); Said button circle (19) comprise be arranged on said each installation through holes (22) below buckle circle base plate (24); Have five on the said button circle base plate (24) and buckle ring through hole (25); The position of said five button ring through hole (25) is corresponding with each installation through holes (22) with size; The bottom surface that said urea drain pipe (5), data pipe (6) and heating tube (12) are gone up annular projection portion (21) all is against its corresponding buckleing on the ring through hole (25), and the body of urea drain pipe (5), data pipe (6) and heating tube (12) all passes its corresponding ring through hole (25) of buckleing and is provided with downwards; Edge around said button circle base plate (24) evenly is provided with a plurality of " h " shape buckle (23); The rectangle frame (23-2) of said each " h " shape buckle (23) is interlocked with said each termination buckle (20), and the top of said each " h " shape buckle (23) vertically section (23-1) is against on the said termination O-ring seal (16).
2. according to the described urea level sensor of claim 1, it is characterized in that said each end overlaps the up-small and down-big conical by its shape that is shaped as of (17).
3. according to claim 1 or 2 described urea level sensors, it is characterized in that said each end overlaps and is provided with end cover O-ring seal (15) between (17) installation through holes (22) corresponding with it.
4. according to the described urea level sensor of claim 1; It is characterized in that; The below of said termination top board (11-1) and annular slab (11-2) is arranged in the arranged outside of said five installation through holes (22), said a plurality of terminations buckle all is arranged on this annular slab (11-2).
5. according to the described urea level sensor of claim 1, it is characterized in that top, said termination (11) is equipped with noise reduction cap (3).
6. according to the described urea level sensor of claim 1; It is characterized in that; The bottom of said data pipe (6) is fixed with bottom dome (13); The below of said bottom dome (13) is provided with filter screen (14), and said bottom dome (13) is passed in the bottom of said urea drain pipe (5), and is connected with said filter screen (14).
7. according to the described urea level sensor of claim 1, it is characterized in that, between said termination (11) and water inlet joint (1), water delivering orifice joint (9), urea outlet connection (2) and the urea inlet attack (8) stop brace (18) is installed all.
8. according to the described urea level sensor of claim 1, it is characterized in that, oil float (7) is installed on the said data pipe (6), and go up and the below that is positioned at said button circle (19) is installed with float block (4) at said data pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202895323U CN202182757U (en) | 2011-08-11 | 2011-08-11 | Urea liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202895323U CN202182757U (en) | 2011-08-11 | 2011-08-11 | Urea liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202182757U true CN202182757U (en) | 2012-04-04 |
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ID=46175790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202895323U Expired - Lifetime CN202182757U (en) | 2011-08-11 | 2011-08-11 | Urea liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202182757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281281A (en) * | 2015-11-18 | 2016-01-27 | 湖南菲尔斯特传感器有限公司 | Wiring harness leading out end sealing structure for urea sensor |
-
2011
- 2011-08-11 CN CN2011202895323U patent/CN202182757U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281281A (en) * | 2015-11-18 | 2016-01-27 | 湖南菲尔斯特传感器有限公司 | Wiring harness leading out end sealing structure for urea sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120404 |
|
| CX01 | Expiry of patent term |