CN220705786U - External urea tank breather valve - Google Patents
External urea tank breather valve Download PDFInfo
- Publication number
- CN220705786U CN220705786U CN202320648989.1U CN202320648989U CN220705786U CN 220705786 U CN220705786 U CN 220705786U CN 202320648989 U CN202320648989 U CN 202320648989U CN 220705786 U CN220705786 U CN 220705786U
- Authority
- CN
- China
- Prior art keywords
- air vent
- cover
- ventilation
- lower cover
- urea tank
- 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
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000004202 carbamide Substances 0.000 title claims abstract description 48
- 238000009423 ventilation Methods 0.000 claims abstract description 44
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000013022 venting Methods 0.000 claims 2
- 239000000428 dust Substances 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to an external urea tank ventilation valve, which is characterized in that: the device comprises a ventilation valve main body and a communication air pipe, wherein the ventilation valve main body is fixed on the side wall of a storage battery unit and is communicated with a urea tank through the communication air pipe, and the urea tank is suspended and fixed at the bottom of the storage battery unit; the air vent valve main body consists of an upper air vent cover, a filter screen, a rubber sealing retainer and an air vent lower cover, wherein the upper air vent cover and the air vent lower cover are detachably connected up and down, the filter screen and the rubber sealing retainer are arranged in the upper air vent cover, an air vent is arranged on the upper air vent cover, and the air vent lower cover is connected with an air vent pipe. The design adopts the mode of an external vent valve, so that the distance between the liquid level and a vent valve filter screen can be greatly raised, and the blockage problem caused by urea crystallization of the filter screen can be greatly improved; meanwhile, the lifting of the position synchronously improves the dust blocking fault of the air pipe. The failure rate is reduced from both the inside and outside dimensions of the vent valve.
Description
Technical Field
The utility model relates to the technical field of automobile urea tank assemblies, in particular to an external urea tank vent valve.
Background
On the automobile urea tank assembly, the ventilation valve assembly is used as a ventilation device to balance the internal pressure and the external pressure of the urea tank assembly and prevent external muddy water and dust from entering the urea tank assembly. The existing breather valve structure is fixed on the urea tank and is connected with the breather pipe by crimping. Because the urea tank adopts side or hanging the battery below more, it is lower from the ground, and whole car raise dust is serious, and the breather valve can be blocked up because of the dust is too much, and then leads to the urea tank negative pressure to inhale flat, finally arouses exhaust injection system trouble. And after the ventilation valve is arranged on the urea tank body, the ventilation valve is easy to be blocked by urea crystals after a long time, and the emission fault can be caused by shaking the urea dip dyeing ventilation valve filter screen in the running process of the vehicle.
Disclosure of Invention
The utility model designs the external urea tank ventilation valve for solving the problems, which can meet the ventilation requirement of the automobile urea tank assembly in a normal running state, can greatly improve the problem that dust is excessive or urea crystals block the ventilation valve so as to meet the normal running requirement of an automobile, and has simple structure and good practicability.
In order to solve the technical problems, the utility model provides an external urea tank ventilation valve, which is characterized in that: the device comprises a ventilation valve main body and a communication air pipe, wherein the ventilation valve main body is fixed on the side wall of a storage battery unit and is communicated with a urea tank through the communication air pipe, and the urea tank is suspended and fixed at the bottom of the storage battery unit; the air vent valve main body consists of an upper air vent cover, a filter screen, a rubber sealing retainer and an air vent lower cover, wherein the upper air vent cover and the air vent lower cover are detachably connected up and down, the filter screen and the rubber sealing retainer are arranged in the upper air vent cover, an air vent is arranged on the upper air vent cover, and the air vent lower cover is connected with an air vent pipe.
Further: the storage battery unit comprises a storage battery assembly and a mounting frame for fixing the storage battery assembly, the storage battery assembly is connected with the frame through the mounting frame, and the urea tank is suspended and fixed at the bottom of the mounting frame.
Still further: the outer wall of the ventilation lower cover is also provided with a fixing frame connected with the ventilation lower cover into a whole, and the ventilation lower cover is fixed on the side wall of the mounting frame through the fixing frame.
Still further: the ventilation lower cover consists of an inner cavity structure and an outer cavity structure, the section of the outer cavity is in a convex shape, an air port communicated with a communication air pipe is formed in the bottom of the outer cavity, a baffle is further arranged in the lower end of the outer cavity, a plurality of through holes are formed in the baffle, the inner cavity of the ventilation lower cover is in a horn mouth shape with a wide upper part and a narrow lower part, the upper end of the inner cavity is connected with the upper end of the outer cavity into a whole and communicated with the upper ventilation cover, and a gap is reserved between the lower end of the inner cavity and the baffle in a right opposite direction.
After the structure is adopted, the external vent valve is adopted, so that the distance between the liquid level and the vent valve filter screen can be greatly increased, and the problem of blockage caused by urea crystallization of the filter screen is greatly solved. Meanwhile, the lifting of the position synchronously improves the dust blocking fault of the air pipe. The failure rate is reduced from both the inside and outside dimensions of the vent valve.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a state diagram of the use of the present utility model.
Figure 2 is an assembled view of the vent valve body.
Figure 3 is a diagram of the outside-in conduction path of the vent valve body.
Figure 4 is a view of the inside-out flow path of the vent valve body.
FIG. 5 is a graph of the urea impact path from inside to outside.
Detailed Description
The external urea tank ventilation valve as shown in fig. 1 and 2 comprises a ventilation valve main body 1 and a communication air pipe 2, wherein the ventilation valve main body is fixed on the side wall of a storage battery unit 3 and is communicated with a urea tank 4 through the communication air pipe, and the urea tank is suspended and fixed at the bottom of the storage battery unit; the air vent valve main body is composed of an upper air vent cover 1-1, a filter screen 1-2, a rubber sealing retainer 1-3 and an air vent lower cover 1-4, wherein the upper air vent cover is detachably connected with the air vent lower cover up and down, the filter screen and the rubber sealing retainer are arranged in the upper air vent cover, an air vent is arranged on the upper air vent cover, and the air vent lower cover is connected with an air communicating pipe. The external breather valve mode is adopted in this design, can increase substantially the distance between liquid level and the breather valve filter screen, greatly improves the jam problem that the filter screen urea crystallization caused. Meanwhile, the lifting of the position synchronously improves the dust blocking fault of the air pipe. The failure rate is reduced from both the inside and outside dimensions of the vent valve.
The storage battery unit shown in fig. 1 and 2 comprises a storage battery assembly and a mounting frame 3-2 for fixing the storage battery assembly 3-1, wherein the storage battery assembly is connected with a frame through the mounting frame, and the urea tank is suspended and fixed at the bottom of the mounting frame; the outer wall of the ventilation lower cover is also provided with a fixing frame 1-5 connected with the ventilation lower cover into a whole, and the ventilation lower cover is fixedly arranged on the side wall of the mounting frame through the fixing frame.
The ventilation lower cover shown in fig. 3, 4 and 5 is composed of an inner cavity and an outer cavity, the section of the outer cavity is in a convex shape, an air port communicated with a communication air pipe is formed in the bottom of the outer cavity, a baffle plate 1-6 is further arranged in the lower end of the outer cavity, a plurality of through holes are formed in the baffle plate, the inner cavity of the ventilation lower cover is in a horn mouth shape with a wide upper part and a narrow lower part, the upper end of the inner cavity and the upper end of the outer cavity are connected into a whole and are communicated with the upper ventilation cover, and the lower end of the inner cavity is right opposite to the baffle plate and is provided with a gap between the baffle plate and the baffle plate.
When the pressure in the urea tank is less than the atmospheric pressure, air enters the upper ventilation cover through the connector, is filtered by the filter screen, sequentially passes through the rubber sealing guard ring, flows through the ventilation lower cover, and finally reaches the urea tank through the communication air pipe to balance the internal and external air pressure of the urea tank; when the pressure in the urea tank is greater than the atmospheric pressure, air reaches the ventilation lower cover through the communication air pipe, flows through the horn mouth through the baffle plate in the ventilation lower cover, then upwards passes through the sealing guard ring and the filter screen once, finally flows through the upper ventilation cover, flows into the atmosphere, and reaches the balance of the internal pressure and the external pressure of the urea tank; when the urea box jolts due to the huge force of the whole vehicle, urea solution reaches the baffle plate in the ventilation lower cover through the communication air pipe, and after being deflected, the urea solution flows into the outer cavity of the ventilation lower cover through the through holes in the baffle plate due to the blocking of the special structure of the baffle plate. The urea tank is provided with a plurality of grooves, the grooves are communicated with the cavity, the bottom of the groove is provided with a plurality of grooves, the grooves are communicated with the cavity, and the grooves are communicated with the cavity. The special vent valve structure can greatly reduce the failure condition of urea crystal blockage of the filter screen and greatly increase the maintenance mileage of the vent valve.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be within the scope of the utility model as set forth in the following claims.
Claims (4)
1. An external urea jar breather valve, its characterized in that: the device comprises a ventilation valve main body (1) and a communication air pipe (2), wherein the ventilation valve main body is fixed on the side wall of a storage battery unit (3) and is communicated with a urea tank (4) through the communication air pipe, and the urea tank is suspended and fixed at the bottom of the storage battery unit; the air vent valve main body is composed of an upper air vent cover (1-1), a filter screen (1-2), a rubber sealing retainer (1-3) and an air vent lower cover (1-4), wherein the upper air vent cover is detachably connected with the air vent lower cover up and down, the filter screen and the rubber sealing retainer are arranged in the upper air vent cover, an air vent is arranged on the upper air vent cover, and the air vent lower cover is connected with an air communicating pipe.
2. An external urea tank venting valve as claimed in claim 1, characterized in that: the storage battery unit comprises a storage battery assembly and a mounting frame (3-2) for fixing the storage battery assembly (3-1), the storage battery assembly is connected with the frame through the mounting frame, and the urea tank is suspended and fixed at the bottom of the mounting frame.
3. An external urea tank venting valve as claimed in claim 2, characterized in that: the outer wall of the ventilation lower cover is also provided with a fixing frame (1-5) connected with the ventilation lower cover into a whole, and the ventilation lower cover is fixedly arranged on the side wall of the mounting frame through the fixing frame.
4. A seed-metering urea tank vent valve as claimed in any one of claims 1 or 3, wherein: the ventilation lower cover consists of an inner cavity structure and an outer cavity structure, the section of the outer cavity is in a convex shape, an air port communicated with a communication air pipe is formed in the bottom of the outer cavity, a baffle (1-6) is further arranged in the lower end of the outer cavity, a plurality of through holes are formed in the baffle, the inner cavity of the ventilation lower cover is in a horn mouth shape with a wide upper part and a narrow lower part, the upper end of the inner cavity and the upper end of the outer cavity are connected into a whole and communicated with the upper ventilation cover, and a gap is reserved between the lower end of the inner cavity and the baffle in a right-to-right manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320648989.1U CN220705786U (en) | 2023-03-29 | 2023-03-29 | External urea tank breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320648989.1U CN220705786U (en) | 2023-03-29 | 2023-03-29 | External urea tank breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220705786U true CN220705786U (en) | 2024-04-02 |
Family
ID=90443212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320648989.1U Active CN220705786U (en) | 2023-03-29 | 2023-03-29 | External urea tank breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220705786U (en) |
-
2023
- 2023-03-29 CN CN202320648989.1U patent/CN220705786U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220705786U (en) | External urea tank breather valve | |
| EP2613956B1 (en) | Fuel cap breather apparatus | |
| CN216278712U (en) | Hydraulic oil tank and vehicle with same | |
| CN203009104U (en) | Novel carbon canister structure | |
| CN205605900U (en) | Positive negative pressure relief valve of low level spring | |
| CN212960125U (en) | ROV rollover valve | |
| CN211371395U (en) | GVV valve pressure maintaining structure | |
| CN211371394U (en) | Novel side exhaust type GVV valve | |
| CN205349926U (en) | Oil absorption filter | |
| CN112483696A (en) | Positive and negative pressure breathing device for fire fighting truck | |
| CN113431715A (en) | Automobile fuel tank hydrops box | |
| CN215927619U (en) | Fork truck intake pipe and diesel fork truck | |
| CN216887243U (en) | Parallel oil tank and unmanned aerial vehicle | |
| CN109458283B (en) | Upper component with air inlet structure | |
| CN110985724A (en) | GVV valve pressure maintaining structure and GVV valve | |
| CN214929670U (en) | Braking oil cup | |
| CN212536813U (en) | Diaphragm type oil pump breather valve | |
| CN216479133U (en) | Breather valve, liquid tank and vehicle | |
| CN213451995U (en) | Pipe orifice type electromagnetic valve | |
| CN206027389U (en) | Automatic drainage condensation desicator | |
| CN213871269U (en) | Positive and negative pressure breathing device for fire fighting truck | |
| CN220816675U (en) | Breather valve | |
| CN212359977U (en) | Anti-reflux automobile filter | |
| CN114046276B (en) | Hydraulic oil tank and vehicle with same | |
| CN216332802U (en) | Unmanned aerial vehicle anti-overflow device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |