CN205190866U - Refuel trip valve of limiting quantity of - Google Patents
Refuel trip valve of limiting quantity of Download PDFInfo
- Publication number
- CN205190866U CN205190866U CN201520967559.1U CN201520967559U CN205190866U CN 205190866 U CN205190866 U CN 205190866U CN 201520967559 U CN201520967559 U CN 201520967559U CN 205190866 U CN205190866 U CN 205190866U
- Authority
- CN
- China
- Prior art keywords
- valve
- floating core
- main part
- sealing ring
- core
- 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
Links
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a refuel trip valve of limiting quantity of, including valve case and superficial core subassembly, float the core subassembly and be located the valve case, be provided with the spring between the bottom of valve case and the superficial core subassembly, float the core subassembly and including floating the core main part body and direction auxiliary member, be provided with two -way sealing component on the direction auxiliary member, the auxiliary member that leads is in the internal fluctuation of superficial core main part, float and to be provided with stop gear between the core main part body and the direction auxiliary member, direction auxiliary member be the cylinder, floats and is provided with the annular space that supplies the cylinder activity in the core main part piece, stop gear goes up the slotted hole that can supply get in touch subassembly activity with setting up floating the core main part body for the couple subassembly that sets up on the cylinder, its advantage is that the refuel trip valve of limiting quantity of that the main entrance opened is well sealed, can guarantee under the normal condition to the ability when the upset.
Description
Technical field
The utility model relates to a kind of cut-off valve be arranged in vehicle fuel tank or in oil pump assy, especially relates to a kind of limitation cut-off valve that refuels.
Background technique
Vehicle fuel tank is provided with overflow cutting valve usually, there is following effect: 1) during vehicle fuel tank oiling, make vehicle fuel tank and air have certain passage by overflow cutting valve; And after vehicle fuel tank fills fuel oil, overflow cutting valve can be closed automatically, prevent fuel oil from overflowing from overflow cutting valve.2) last importantly when the position of fuel tank changes suddenly (as vehicle rollover), overflow cutting valve can stop fuel oil to flow out.Authorize on September 14th, 2011 patent No. announced be 201120078737.7 name be called " a kind of overflow cutting valve; it discloses valve casing upper end and be provided with inlet hole; the valve that can fluctuate in valve casing is set in valve casing and floats core; valve floats on core and is provided with fixing button; fixing button is provided with rubber valve; be close to as skin valve the upper surface that valve floats core, and valve floats between core and valve bottom and is provided with spring.In the normal oiling of fuel tank or with in oily process, valve floats core and falls back to valve bottom, and spring is in compressive state, form air-flow path in valve body, make fuel tank keep normal air pressure.When in fuel tank, fuel oil is filled it up with, valve floats the floating function float downward of core at fuel oil, and the lower end of inlet hole is blocked by rubber valve, and fuel oil can be prevented from inlet hole to outflow.The valve mouth of pipe of this overflow cutting valve is connected with canister.The oil gas major part that fuel tank is distributed by overflow cutting valve enters into canister, again enters air after being filtered by canister.
ORVR (OnboardRefuelingVaporRecovery) i.e. vehicle-mounted oil filling gas recovery system for oil, be a kind of vehicle emission control system, it can collect the fuel vapor evaporated from fuel tank in refueling process.This technology is that U.S. EPA was released in 1994 using a kind of alternative as secondary gas recovery system for oil.In this oiling gas recovery system for oil, fuel tanks of automobile is installed an oiling limitation cut-off valve, comprise a valve body and deaerator, the Single port of deaerator is communicated with the overflow cutting valve be arranged on vehicle fuel tank, and the another port of deaerator is communicated with canister.The function of this oiling limitation cut-off valve is: must seal when overturning, close after must reopen, dynamic leakage must be little, stops that liquid infiltrates in canister, oil level is closed highly accurate, bear the oil gas distributed simultaneously and all enter canister and filter.
Chinese Patent Application No. be 201510534513.5 utility application specification disclose a kind of limitation cut-off valve that refuels, it discloses a kind of limitation cut-off valve that refuels, comprise valve body and deaerator, valve body comprises valve guard shield, valve inner housing and valve float core, valve guard shield is arranged on outside valve inner housing, valve floats core and is positioned at described valve inner housing, the bottom of valve inner housing and valve float between core and are provided with spring, valve inner housing is connected with deaerator, valve inner housing top is provided with demarcation strip, the oil gas sending-out hole be communicated with deaerator is provided with in the middle of described demarcation strip,
Described valve floats core and comprises the sealing component that can fluctuate in floating core main part and restriction amplitude, described sealing component comprises the upper sealing ring and lower sealing ring that are wholely set, the centre of upper sealing ring and lower sealing ring is provided with central passage, valve float core be in inclination or horizontal state under, spring promotes the reach of floating core main part to be made the front end of floating core main part be against on described lower sealing ring and seals described central passage, and upper sealing ring is against on described demarcation strip and seals described oil gas sending-out hole;
Valve float core from inclination or horizontal state transformation to vertical state procedure, floating core main part relies on the spring described in deadweight compression, because main passage bore is larger, so valve reopens more difficult when there being certain pressure in fuel tank, therefore floating core main part front end is first made to be separated with lower sealing ring, the deadweight of floating core continues the through hole after opening separation, and suction is less, opens with regard to Vietnamese side just.The outer space of sealing component and the inner space of sealing component are by central passage conducting, the air pressure of the air pressure of the outer space of sealing component and the inner space of sealing component reaches balance, valve floats core and relies on gravity that upper sealing ring and demarcation strip are separated, and oil gas sending-out hole is in normally state.
The effect of above-mentioned secondary seal structure is avoid the adsorption force because of upper sealing ring excessive and cannot be separated with demarcation strip, and ensure in normal state, oil gas sending-out hole is in normally state.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of oiling limitation cut-off valve that can ensure the conducting of oil gas sending-out hole when overturning under energy excellent sealing, normal state.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of limitation cut-off valve that refuels, comprise valve chest and floating core assembly, described floating core assembly is positioned at described valve chest, spring is provided with between the bottom of valve chest and floating core assembly, floating core assembly comprises floating core main part body and guide aids, described guide aids is provided with two-way sealing member, described guide aids fluctuates in described floating core main part body, position-limit mechanism is provided with between described floating core main part body and described guide aids, described guide aids is cylindrical body, the annular space for described cylindrical body activity is provided with in described floating core main component, described position-limit mechanism is that be arranged on hanging hook assembly on cylindrical body and be arranged on can for the slotted eye of described hanging hook assembly activity on floating core main part body.
The further preferred version of the utility model: described hanging hook assembly comprises the hook member be symmetricly set on cylindrical body.Symmetrically arranged hook member can under the prerequisite ensureing limit effect, and materials are less, and cost is low.
The further preferred version of the utility model: described two-way sealing member comprises upper sealing ring and lower sealing ring, described upper sealing ring is bowl-type structure, is provided with central passage between described upper sealing ring and described lower sealing ring.The upper sealing ring of bowl-type structure fastens the inwall in valve chest outlet port, can play seal action; Central passage, for being communicated with upper sealing ring and lower sealing ring, only has the whole oiling limitation cut-off valve when two seal rings are all sealing state to be only closed.
The further preferred version of the utility model: be provided with horizontal sealing surface in described floating core main part body, when described guide aids is sunk, lower sealing ring is close to described horizontal sealing surface.Lower sealing ring and horizontal sealing surface laminating produce sealing effect, separately then conducting, easier.
The further preferred version of the utility model: described valve chest is provided with main passage, upper sealing ring corresponds to described main passage.Oil gas passes through from main passage, when upper sealing ring and lower sealing ring are in sealing state, and the obstructed oil gas in main passage.
The further preferred version of the utility model: described valve chest comprises main body and valve upper cover body, valve upper cover body is arranged in described main body, and described main passage is positioned on described valve upper shell.
Compared with prior art, the utility model has the advantages that when floating core assembly is in inclination or horizontal state, spring promotes guide aids and moves, blocked by positioning means after moving to certain position and no longer move, guide aids extruding two-way sealing member, the inwall in the upper sealing ring laminating valve chest outlet port of two-way sealing member, lower sealing ring laminating horizontal sealing surface, enclose main passage and central passage, the top oil gas sending-out hole of valve chest is no longer communicated with valve chest inside; When floating core assembly from inclination or horizontal state transformation to vertical state procedure, guide aids relies on deadweight Compress Spring, guide aids moves down, blocked by position-limit mechanism after moving to certain position and no longer move down, in moving process, the inwall of upper sealing ring and valve chest main passage separately, lower sealing ring and horizontal sealing surface are separately, open main passage and central passage, the upper outlet of valve chest being communicated with valve chest inside again, the oiling limitation cut-off valve opened oily main passage under energy excellent sealing, normal state, can be ensured when overturning.
Accompanying drawing explanation
Fig. 1 is quick-fried figure of the present utility model;
Fig. 2 is the stereogram of floating core assembly of the present utility model;
Fig. 3 half sectional view of the present utility model;
Fig. 4 is the sectional view of the passage above and below closed guide aids of the present utility model when all opening;
Fig. 5 is the enlarged view at A place in Fig. 4;
Fig. 6 be the passage above guide aids of the present utility model close with guide aids below passage open time sectional view;
Fig. 7 is the enlarged view at B place in Fig. 6;
Fig. 8 be the passage above guide aids of the present utility model open with guide aids below passage close time sectional view;
Fig. 9 is the enlarged view at C place in Fig. 8;
Figure 10 is stereogram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As Fig. 1-Fig. 3, shown in Figure 10, a kind of limitation cut-off valve that refuels, comprise valve chest 1 and floating core assembly 2, floating core assembly 2 is positioned at valve chest 1, spring 3 is provided with between the bottom of valve chest 1 and floating core assembly 2, floating core assembly 2 comprises floating core main part body 4 and guide aids 5, guide aids 5 is provided with two-way sealing member 6, guide aids 5 fluctuates in floating core main part body 4, float and be provided with position-limit mechanism 7 between core main part body 4 and guide aids 5, guide aids 5 is cylindrical body 5, the annular space 8 for cylindrical body 5 activity is provided with in floating core main component 4, position-limit mechanism 7 can for the slotted eye 72 of described hanging hook assembly 71 activity on floating core main part body 4 for being arranged on hanging hook assembly on cylindrical body 5 71 and being arranged on.
As shown in Figure 4, Figure 5, hanging hook assembly 71 comprises the hook member 73 be symmetricly set on cylindrical body 5.Two-way sealing member 6 comprises upper sealing ring 61 and lower sealing ring 62, and upper sealing ring 61, in bowl-type structure, is provided with central passage 63 between upper sealing ring 61 and lower sealing ring 62.
As shown in Fig. 4-Fig. 9, be provided with horizontal sealing surface 41 in floating core main part body 4, when guiding assists 5 to sink, lower sealing ring 62 is close to horizontal sealing surface 41.Valve chest 1 is provided with main passage 11, upper sealing ring 61 corresponds to main passage 11.Valve chest 1 comprises main body 12 and valve upper cover body 13, and valve upper cover body 13 is installed on the main body 12, and main passage 11 is positioned on valve upper cover body 13.
Claims (6)
1. an oiling limitation cut-off valve, comprise valve chest and floating core assembly, described floating core assembly is positioned at described valve chest, spring is provided with between the bottom of valve chest and floating core assembly, floating core assembly comprises floating core main part body and guide aids, described guide aids is provided with two-way sealing member, described guide aids fluctuates in described floating core main part body, position-limit mechanism is provided with between described floating core main part body and described guide aids, it is characterized in that described guide aids is cylindrical body, the annular space for described cylindrical body activity is provided with in described floating core main component, described position-limit mechanism is that be arranged on hanging hook assembly on cylindrical body and be arranged on can for the slotted eye of described hanging hook assembly activity on floating core main part body.
2. one oiling limitation cut-off valve according to claim 1, is characterized in that described hanging hook assembly comprises the hook member be symmetricly set on cylindrical body.
3. one oiling limitation cut-off valve according to claim 1, it is characterized in that described two-way sealing member comprises upper sealing ring and lower sealing ring, described upper sealing ring is bowl-type structure, is provided with central passage between described upper sealing ring and described lower sealing ring.
4. one oiling limitation cut-off valve according to claim 3, it is characterized in that being provided with horizontal sealing surface in described floating core main part body, when described guide aids is sunk, lower sealing ring is close to described horizontal sealing surface.
5. one oiling limitation cut-off valve according to claim 3, it is characterized in that described valve chest is provided with main passage, upper sealing ring corresponds to described main passage.
6. one oiling limitation cut-off valve according to claim 5, it is characterized in that described valve chest comprises main body and valve upper cover body, valve upper cover body is arranged in described main body, and described main passage is positioned on described valve upper shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520967559.1U CN205190866U (en) | 2015-11-27 | 2015-11-27 | Refuel trip valve of limiting quantity of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520967559.1U CN205190866U (en) | 2015-11-27 | 2015-11-27 | Refuel trip valve of limiting quantity of |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190866U true CN205190866U (en) | 2016-04-27 |
Family
ID=55783855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520967559.1U Expired - Fee Related CN205190866U (en) | 2015-11-27 | 2015-11-27 | Refuel trip valve of limiting quantity of |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190866U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439148A (en) * | 2016-10-27 | 2017-02-22 | 江苏大学 | External oil mass control valve with guiding de-noising function |
| CN107763298A (en) * | 2017-10-18 | 2018-03-06 | 亚普汽车部件股份有限公司 | New-type oil tank liquid level controls air bleeding valve |
-
2015
- 2015-11-27 CN CN201520967559.1U patent/CN205190866U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439148A (en) * | 2016-10-27 | 2017-02-22 | 江苏大学 | External oil mass control valve with guiding de-noising function |
| CN107763298A (en) * | 2017-10-18 | 2018-03-06 | 亚普汽车部件股份有限公司 | New-type oil tank liquid level controls air bleeding valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101961978B (en) | Vehicle-mounted oiling steam reclamation and fuel oil liquid level controlling decompression integrated device | |
| CN107461282B (en) | Fuel stop valve | |
| CN103993995A (en) | Fuel tank structure | |
| CN205190866U (en) | Refuel trip valve of limiting quantity of | |
| US20170260932A1 (en) | Fuel tank pressure regulator | |
| CN105604746A (en) | Fuel tank system | |
| CN201081038Y (en) | Respiratory valve | |
| CN204873813U (en) | Vapor recovery system proclaims oneself nozzle structure | |
| CN204921200U (en) | Oil/gas separator | |
| CN106460732A (en) | Fuel tank liquid vapor discriminator with integrated over-pressure and make-up air valves | |
| CN204961949U (en) | Refuel trip valve of limiting quantity of | |
| CN105042143A (en) | Oil filling limiting stop valve | |
| CN201189819Y (en) | Single-stage gravity valve, double stage gravity valve and multifunction valve | |
| CN205118338U (en) | Vapor recovery system system is with vacuum flow control and gas -liquid ratio adjusting valve | |
| CN205190872U (en) | Refuel trip valve of limiting quantity of | |
| CN105042149A (en) | Oil filling limiting stop valve | |
| CN106089519B (en) | A kind of fuel tank cap | |
| CN204922142U (en) | Refuel trip valve of limiting quantity of | |
| CN109973698A (en) | A kind of CFLVV combination valve | |
| CN211371394U (en) | Novel side exhaust type GVV valve | |
| CN102644778B (en) | Automatic control valve for liquid level | |
| CN206918352U (en) | A kind of overflow cutting valve | |
| CN107840301A (en) | Without the self-styled petroleum vapor recovery nozzle of pressure | |
| CN106439148B (en) | It is a kind of that there is the external quantity control valve for being oriented to decrease of noise functions | |
| CN207498045U (en) | With the petroleum vapor recovery refueling nozzle without pressure self-sealing function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20211127 |