CN115289260A - Oil injection limiting overflow valve for automobile oil tank - Google Patents
Oil injection limiting overflow valve for automobile oil tank Download PDFInfo
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- CN115289260A CN115289260A CN202210974373.3A CN202210974373A CN115289260A CN 115289260 A CN115289260 A CN 115289260A CN 202210974373 A CN202210974373 A CN 202210974373A CN 115289260 A CN115289260 A CN 115289260A
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- valve
- casing
- shell
- plate
- air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention discloses an automobile fuel tank oiling limiting overflow valve which comprises a shell, wherein a top cover is arranged at the top of the shell, fuel in a fuel tank can be prevented from flowing into the shell and then flowing into a carbon tank through a vent hole during rollover, so that the fuel stored in the fuel tank can be prevented from flowing into the carbon tank and being limited during rollover, when a vehicle returns to a normal state, a force can be applied to one side of a valve seat when a valve core is returned, the valve core is similarly torn downwards to one side of the valve seat, the valve seat is convenient to separate, when the vehicle returns to the normal state, air can be sprayed to a joint between a valve plate and the shell, the valve plate and the shell can be separated, and meanwhile, an extended air blowing pipe can be matched, so that blown air can be protected, the influence of the flowing fuel on the air is reduced, the weakening of the air impact force is reduced, the impact force on the joint between the valve plate and the shell is improved, and the separation effect of the valve plate and the shell is improved.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to an automobile oil tank oil injection limiting overflow valve.
Background
In an automobile, fuel vapor in a fuel tank is evaporated to the outside through a fuel tank body, thereby causing environmental pollution. Along with the development of society, environmental protection is more and more emphasized in each country, consequently, also more and more strict to the evaporation emission regulation of fuel steam, consequently need set up the valve body in car oil tank department and make fuel steam can discharge through its guide and adsorb the purification in the carbon tank through the venthole, can seal the venthole that supplies fuel steam to discharge through the valve plate in the valve that sets up when the vehicle overturns simultaneously fast, avoid the fuel overflow of pouring into in the oil tank to go into the carbon tank, prevent the vehicle burning, improve automobile safety effectively, realize spacing to the fuel.
However, when the existing valve body arranged at the fuel tank is used, the inner wall of the valve body close to the air outlet can have sticky fuel oil residues, when the valve plate in the valve is attached to the inner wall of the air outlet, the valve plate is easy to be sticky, so that the valve plate cannot be smoothly separated from the air outlet when a vehicle is recovered to be normal, the valve plate cannot be normally reset, the air outlet is blocked, and the guide of the valve body to fuel oil steam is influenced.
Therefore, the invention is needed to solve the problems by providing an automobile oil tank oil filling limit overflow valve.
Disclosure of Invention
Aiming at the problems, the invention provides an automobile oil tank oil injection limiting overflow valve to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a spacing overflow valve of car oil tank oiling, includes the casing, the top of casing is equipped with the top cap, the outside lower part equidistance of casing is encircleed and has been seted up the gas pocket, the inside of casing is equipped with the case, the spacing groove has been seted up to the inner wall of casing, slidable mounting has the stopper in the spacing groove, stopper and case outside fixed connection, the bottom of case is through first spring and casing diapire fixed connection, the middle part of casing and top cap all is equipped with the venthole, the diapire of casing is equipped with the backward flow hole, the top of case is equipped with the valve plate subassembly that is used for sealing the venthole, the roof symmetry fixed mounting of casing has the body, the inboard of body is equipped with a plurality of gas blow pipes, the inside of gas blow pipe is equipped with first check valve, the roof of casing is equipped with the air feed subassembly that is used for air feed in the body.
Further, the air supply assembly comprises a cylinder body fixedly connected to the top wall of the shell, a partition plate is arranged in the middle of the inner wall of the cylinder body, the partition plate divides the cylinder body into two cavities with equal space, a pair of air suction pipes communicated with the two cavities respectively are arranged on the outer side of the cylinder body, a second one-way valve is arranged inside each air suction pipe, the cavities are communicated with the pipe body through air passing pipes, a piston is slidably mounted in each cavity, and a pushing assembly used for pushing the piston to move horizontally is arranged on the outer side of the piston.
Further, promote the subassembly and include that fixed connection keeps away from the push rod of baffle one side at the piston, the one end that the piston was kept away from to the push rod extends to the outside of cylinder body, the roof fixed mounting of casing has the guide rail, the inside slidable mounting of guide rail has the extrusion structure that is used for extrudeing the push rod and makes its horizontal migration, the bottom of guide rail has the support plate through connecting rod fixed mounting, the top of support plate is through second spring and extrusion structure fixed connection, the outside cover of push rod is equipped with the third spring, the both ends of third spring respectively with cylinder body and piston fixed connection.
Furthermore, the extrusion structure is specifically set to be a plate-shaped member which is provided with a downward inclined surface near one side of the cylinder body, guide blocks are fixedly mounted on two sides of the extrusion structure, and the guide blocks are arranged in the guide rails in a sliding manner.
Further, the gas blow pipe specifically sets up to flexible pipe of multisection, and is a plurality of the one end equidistance fixed mounting of gas blow pipe is in the inboard of body, the one end tilt up of body is kept away from to the gas blow pipe, gas blow pipe and the inside intercommunication of body, the fixed cover of one side of keeping away from the body of gas blow pipe is equipped with the clamp plate, the outside cover of gas blow pipe is equipped with the fourth spring, the both ends of fourth spring respectively with body and clamp plate fixed connection, the outside of extrusion structure is equipped with the pulling subassembly that makes its to being close to the body direction motion that is used for the pulling clamp plate.
Further, the pulling subassembly includes the deflector roll frame of fixed connection in the body bottom, the inside of deflector roll frame is equipped with the deflector roll, deflector roll frame number corresponds with the clamp plate, the bottom fixedly connected with haulage rope of clamp plate, the haulage rope walks around the below of deflector roll, and is a plurality of the common fixedly connected with stay cord of one end that the clamp plate was kept away from to the haulage rope, the one end and the extrusion structure outside fixed connection of haulage rope are kept away from to the stay cord.
Further, the valve plate assembly comprises a movable frame fixedly mounted at the top of the valve core, a movable shaft is rotatably mounted inside the movable frame, a valve seat is fixedly mounted outside the movable shaft through an L-shaped plate, and a valve plate is arranged at the top of the valve seat.
Furthermore, a cross rod is fixedly mounted on the upper portion of one side, far away from the valve seat, of the movable frame.
Furthermore, the middle of the top end of the valve core is provided with a bulge, and the top of the bulge is abutted against the middle of the bottom end of the valve seat.
The invention has the technical effects and advantages that:
1. the invention can prevent the fuel in the fuel tank from flowing into the shell and then flowing into the carbon tank through the air outlet when the vehicle is turned over, so that the fuel stored in the fuel tank and injected into the carbon tank can be prevented from overflowing into the carbon tank, and the limit to the fuel when the vehicle is turned over is realized;
2. according to the invention, when the vehicle returns to a normal state, force can be applied to one side of the valve seat when the valve core is reset, and the valve seat is similarly torn downwards, so that the side with large stress of the valve seat is separated from the top wall of the shell firstly, the bonding area between the valve seat and the top wall of the shell is reduced, the bonding degree between the valve seat and the top wall of the shell is reduced, and the valve seat is convenient to separate;
3. the invention can blow air to the joint between the valve plate and the shell when the vehicle returns to the normal state, so that the joint between the valve plate and the top wall of the shell is impacted, and the valve plate and the shell can be separated;
4. the valve plate can protect blown gas by the continuous approach of the port of the gas blow pipe and the valve plate while the separation is assisted by gas blowing, so that the influence of flowing fuel on the impact force of the gas is reduced, the weakening of the impact force of the gas is reduced, the impact force on the joint of the valve plate and the shell is improved, and the separation effect on the valve plate shell is further improved;
the invention can prevent fuel oil in the fuel tank from flowing into the shell and then flowing into the carbon tank through the air outlet when the vehicle is turned over, so that the fuel oil stored in the fuel tank can be prevented from overflowing into the carbon tank, the fuel oil can be limited when the vehicle is turned over, when the vehicle returns to a normal state, force can be applied to one side of the valve seat when the valve core is reset, the valve core is similarly torn downwards to one side of the valve seat, the valve seat is convenient to separate, when the vehicle returns to the normal state, air can be sprayed to the joint between the valve plate and the shell, so that the valve plate and the shell can be separated, and meanwhile, the extended air blowing pipe can be matched, so that blown air can be protected, the influence of the flowing fuel oil on the impact force of the air is reduced, the weakening of the impact force of the air on the joint between the valve plate and the shell is improved, and the separation effect of the valve plate and the shell is further improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 shows a schematic structural diagram of an automobile oil tank oiling limit overflow valve according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional structural diagram of an automobile oil tank oil injection limiting overflow valve according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a gas supply assembly according to an embodiment of the invention;
FIG. 4 shows a schematic cross-sectional view of a gas supply assembly of an embodiment of the present invention;
FIG. 5 shows an enlarged schematic view at A in FIG. 2 of an embodiment of the present invention;
FIG. 6 shows a schematic structural diagram of a valve cartridge of an embodiment of the present invention;
in the figure: 1. a housing; 2. a top cover; 3. air passing holes; 4. a valve core; 5. a first spring; 6. a pipe body; 7. an air blowing pipe; 8. a cylinder body; 9. an air intake duct; 10. passing through the trachea; 11. a piston; 12. a return orifice; 13. a push rod; 14. a guide rail; 15. extruding the structure; 16. a carrier plate; 17. a second spring; 18. a third spring; 19. pressing a plate; 20. a fourth spring; 21. a guide roller frame; 22. pulling a rope; 23. a movable frame; 24. a valve seat; 25. a valve plate; 26. and (4) protruding.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides an oil filling limiting overflow valve for an automobile oil tank, which comprises a shell 1, wherein the top of the shell 1 is provided with a top cover 2, the lower part of the outer side of the shell 1 is equidistantly and circularly provided with air passing holes 3, the inside of the shell 1 is provided with a valve core 4, the inner wall of the shell 1 is provided with a limiting groove, a limiting block is arranged in the limiting groove in a sliding manner, the limiting block is fixedly connected with the outer side of the valve core 4, the bottom of the valve core 4 is fixedly connected with the bottom wall of the shell 1 through a first spring 5, the middle parts of the shell 1 and the top cover 2 are both provided with air outlet holes, the bottom wall of the shell 1 is provided with a backflow hole 12, the top of the valve core 4 is provided with a valve plate assembly for sealing the air outlet holes, the top wall of the shell 1 is symmetrically and fixedly provided with pipe bodies 6, the inner side of each pipe body 6 is provided with a plurality of air blowing pipes 7, the inside of each air blowing pipe 7 is provided with a first one-way valve, the air supply assembly for supplying air to the inside the pipe bodies 6 is arranged on the shell 1, and when in use, when the vehicle turns over, the shell 1 topples over, so that the first spring 5 in a compressed state releases acting force to drive the valve core 4 to move towards the direction close to the vent hole and match the valve plate component to seal the vent hole of the shell 1, fuel in the fuel tank is prevented from flowing into the shell 1 through the vent hole due to toppling over, oil stored in the fuel tank can be prevented from overflowing into the carbon tank, oil limitation is realized, the gas supply component sucks gas into the vehicle when toppling over, when the vehicle returns to a normal state, the valve core 4 compresses the first spring 5 due to gravity reduction to deform the valve core 4, and simultaneously drives the valve plate component to be separated from the vent hole on the shell 1, simultaneously, the gas supply assembly continuously supplies gas to the pipe body 6, so that the gas pushes open the first one-way valve in the gas blow pipe 7 to be sprayed, the sprayed gas can spray gas to the joint between the valve plate assembly and the shell 1, the valve plate assembly and the shell 1 can be separated, the valve plate assembly can be reset, the phenomenon that the normal use is influenced due to the fact that the valve plate assembly cannot normally reset to block the gas outlet is avoided, and fuel in the shell 1 flows back to the fuel tank through the backflow hole 12.
As shown in fig. 2-4, the air supply assembly includes a cylinder 8 fixedly connected to the top wall of the housing 1, a partition is disposed in the middle of the inner wall of the cylinder 8, the partition divides the interior of the cylinder 8 into two chambers with equal space size, a pair of air suction pipes 9 respectively communicated with the two chambers are disposed on the outer side of the cylinder 8, a second check valve is disposed inside the air suction pipes 9, the chambers are communicated with the pipe body 6 through air passing pipes 10, a piston 11 is slidably mounted in the chambers, a pushing assembly for pushing the piston 11 to move horizontally is disposed on the outer side of the piston 11, when the vehicle is tilted, the pushing assembly drives the piston 11 to move in a direction away from the partition, so that air is sucked into the chambers, the second check valve in the air suction pipes 9 is opened, the first check valve in the air blowing pipes 7 is closed, outside air is sucked into the chambers through the air suction pipes 9, when the vehicle returns to a normal state, the pushing assembly drives the piston 11 to reset, so that air in the chambers is squeezed outwards, the second check valve is closed, the first check valve is opened, and air is blown out through the air passing pipes 10, the pipe 6 and the air blowing pipes 7.
As shown in fig. 2-5, the pushing assembly includes a push rod 13 fixedly connected to one side of the piston 11 away from the partition, one end of the push rod 13 away from the piston 11 extends to the outside of the cylinder 8, a guide rail 14 is fixedly installed on the top wall of the housing 1, an extrusion structure 15 for extruding the push rod 13 to make it move horizontally is installed inside the guide rail 14 in a sliding manner, a support plate 16 is fixedly installed at the bottom of the guide rail 14 through a connecting rod, the top of the support plate 16 is fixedly connected with the extrusion structure 15 through a second spring 17, a third spring 18 is sleeved outside the push rod 13, two ends of the third spring 18 are respectively fixedly connected with the cylinder 8 and the piston 11, when the vehicle is tilted, the compressed second spring 17 releases an acting force to drive the extrusion structure 15 to move in a direction away from the support plate 16, so that the third spring 18 in a stretching state releases the acting force to drive the piston 11 to move in a direction away from the partition, when the vehicle returns to a normal state, the extrusion structure 15 returns to compress the second spring 17 to deform to generate an acting force due to reduce the gravity, and the extrusion structure 13 to drive the piston 11 to return, and simultaneously stretches the third spring 18 to deform to generate an acting force.
As shown in fig. 3-4, the extruding structure 15 is specifically configured to be a plate-shaped member having a downward inclined surface near one side of the cylinder 8, guide blocks are fixedly mounted on both sides of the extruding structure 15, and are slidably disposed in the guide rail 14, so that the extruding structure 15 can cooperate with the inclined surface to extrude the push rod 13 to drive the piston 11 to reset, and cooperate with the guide blocks to enable the extruding structure 15 to slide in the guide rail 14.
As shown in fig. 3-5, the air blowing pipes 7 are specifically configured as multiple sections of telescopic pipes, one end of each of the air blowing pipes 7 is fixedly installed at the inner side of the pipe body 6 at equal intervals, one end of each of the air blowing pipes 7, which is far away from the pipe body 6, is tilted upward, the air blowing pipe 7 is communicated with the inside of the pipe body 6, one side of each of the air blowing pipes 7, which is far away from the pipe body 6, is fixedly sleeved with a pressing plate 19, the outer part of each of the air blowing pipes 7 is sleeved with a fourth spring 20, two ends of each of the fourth springs 20 are respectively fixedly connected with the pipe body 6 and the pressing plate 19, the outer side of the extrusion structure 15 is provided with a pulling assembly for pulling the pressing plate 19 to move towards the direction close to the pipe body 6, when the extrusion structure 15 moves towards the direction far away from the support plate 16, the pressing plate 19 is pulled towards the direction close to the pipe body 6 by the pulling assembly, so that the fourth spring 20 is compressed to generate an acting force, and the pressing plate 19 drives the air blowing pipes 7 to contract, the sealing of the valve plate assembly on the air outlet hole is not influenced by shortening the air blowing pipe 7, when the vehicle returns to a normal state, the extrusion structure 15 is reset, the pulling assembly is used for reducing the pulling force on the pressing plate 19, at the moment, the fourth spring 20 releases the acting force to drive the pressing plate 19 to reset, so that the air blowing pipe 7 is driven to extend, the end part of the air blowing pipe 7 can gradually approach the valve plate assembly, when the vehicle is full of fuel oil due to large rollover dumping degree in the shell 1, when the vehicle returns to a normal state, the internal fuel oil flows into the fuel tank through the return hole 12, the flowing fuel oil can be contacted with the gas blown out through the air blowing pipe 7, the impact force of the gas on the joint between the valve plate assembly and the shell 1 is reduced, the port of the air blowing pipe 7 is continuously close to the valve plate assembly, the blown gas can be protected, the influence of the flowing fuel oil on the gas is reduced, and the weakening of the gas impact force is reduced, promote the impact force to valve plate assembly and casing 1 combination department, and then promote the separation effect to between valve plate assembly and the casing 1, if blow pipe 7 extends to locate conflict with valve plate 25, valve plate 25 still can't separate with casing 1 roof, and the one end of blow pipe 7 through continuing the extension can be shoveled one side of valve plate 25 and casing 1 laminating department for help valve plate 25 separates with casing 1.
As shown in fig. 3-5, the pulling assembly includes a guide roller frame 21 fixedly connected to the bottom of the tube body 6, a guide roller is disposed inside the guide roller frame 21, the number of the guide roller frames 21 corresponds to that of the pressing plate 19, a traction rope is fixedly connected to the bottom of the pressing plate 19, the traction rope bypasses the lower side of the guide roller, a pull rope 22 is fixedly connected to one end of each of the traction ropes away from the pressing plate 19, one end of each of the pull ropes 22 away from the traction rope is fixedly connected to the outer side of the extrusion structure 15, the extrusion structure 15 moves in the direction away from the support plate 16 through the pull rope 22, the traction rope pulls the pressing plate 19 to move in the direction close to the tube body 6, and the fourth spring 20 is compressed to deform to generate an acting force, and simultaneously drives the blowpipe 7 to shorten, when the extrusion structure 15 resets, the pulling force of the pull rope 22 and the traction rope is reduced at this time, the fourth spring 20 releases the acting force to drive the pressing plate 19 and the blowpipe 7 to reset, so that the end of the blowpipe 7 is close to the valve plate assembly.
As shown in fig. 6, the valve plate assembly includes a movable frame 23 fixedly installed at the top of the valve seat 4, a movable shaft is rotatably installed inside the movable frame 23, a valve seat 24 is fixedly installed outside the movable shaft through an L-shaped plate, a valve plate 25 is installed at the top of the valve seat 24, the valve seat 4 moves towards the direction close to the air outlet to drive the movable frame 23, the movable shaft, the L-shaped plate and the valve seat 24 move therewith, thereby driving the valve plate 25 to move therewith so as to be attached to the top wall of the housing 1 and seal the air outlet, when the valve seat 4 descends and resets, at this time, the movable frame 23, the movable shaft and the L-shaped plate pull one side of the valve seat 24, so that the force applied to one side of the valve seat 24 is greater than the rest, the valve seat 24 is similar to be torn downwards, so that the side of the valve seat 24 with large force is separated from the top wall of the housing 1 first, so that the bonding area between the top wall of the valve seat 24 and the top wall of the housing 1 is reduced, the degree of bonding between the valve seat 24 and the top wall of the housing 1 is reduced, so that the valve seat 24 is separated from the housing 1, by applying force applied to one side of the valve seat 24, so as to help the valve seat 24 to separate the top wall of the housing 1, thereby avoiding the situation that the valve seat 24 and the housing 4 cannot be separated from the housing 1.
As shown in fig. 6, one side upper portion fixed mounting that disk seat 24 was kept away from to adjustable shelf 23 has the horizontal pole, makes when empting through setting up of horizontal pole, and the L shaped plate can contradict with the horizontal pole for it can not rotate too big angle, and then avoids disk seat 24 turned angle too big to cause the unable normal condition of laminating with casing 1 roof of valve plate 25 to appear.
As shown in fig. 6, a protrusion 26 is disposed in the middle of the top end of the valve element 4, the top of the protrusion 26 abuts against the middle of the bottom end of the valve seat 24, the contact surface between the valve element 4 and the bottom of the valve seat 24 can be reduced by the protrusion 26, so that the valve seat 24 can be supported normally, and the fuel residue with viscosity can be prevented from adhering between the valve element 4 and the valve seat 24 by the reduction of the contact surface.
The working principle is as follows: when the fuel tank is used, fuel steam generated in the fuel tank enters the shell 1 through the air holes 3 and enters the carbon tank through the air outlet holes, so that the fuel steam is purified, when the fuel tank turns over, the shell 1 topples over, so that the first spring 5 in a compressed state releases acting force to drive the valve core 4 to move towards the direction close to the air outlet holes, the valve core 4 moves towards the direction close to the air outlet holes to drive the movable frame 23, the movable shaft, the L-shaped plate and the valve seat 24 to move along with the valve core 4, the valve plate 25 is driven to move along with the valve core so as to be attached to the top wall of the shell 1 and seal the air outlet holes, the fuel in the fuel tank is prevented from flowing into the shell 1 and then flowing into the carbon tank through the air outlet holes due to toppling over, the fact that oil stored in the fuel tank overflows into the carbon tank and flows into the carbon tank, oil limiting is achieved, when the fuel tank topples over, the compressed second spring 17 releases acting force to drive the extrusion structure 15 to move towards the direction far away from the carrier plate 16, so that the third spring 18 in the stretching state releases the acting force to drive the piston 11 to move towards the direction far away from the partition plate, so that air is sucked into the cavity, at the moment, the second one-way valve in the air suction pipe 9 is opened, the first one-way valve in the air blowing pipe 7 is closed, the outside air is sucked into the cavity through the air suction pipe 9, when the vehicle returns to the normal state, the valve core 4 compresses the first spring 5 to deform due to the gravity reduction, at the moment, one side of the valve seat 24 is pulled through the movable frame 23, the movable shaft and the L-shaped plate, so that the stress of one side of the valve seat 24 is larger than that of the other parts, similarly, one side of the valve seat 24 is torn downwards, the side with the large stress of the valve seat 24 is firstly separated from the top wall of the shell 1, the bonding area between the valve seat 24 and the top wall of the shell 1 is reduced, and the bonding degree between the valve seat 24 and the top wall of the shell 1 is reduced, the valve seat 24 is convenient to separate, the valve seat 24 can be separated from the top wall of the shell 1 by applying force to one side of the valve seat 24, the situation that the valve seat 24 cannot be separated from the top wall of the shell 1 due to the fact that viscous fuel oil residues exist between the top of the valve seat 24 and the top wall of the shell 1 and the valve core 4 is influenced to reset can be avoided, when a vehicle returns to a normal state, the extrusion structure 15 resets due to gravity and compresses the second spring 17 to enable the second spring 17 to deform to generate acting force, the extrusion structure 15 descends to enable the push rod 13 to be extruded to enable the piston 11 to drive the push rod 13 to reset, meanwhile, the third spring 18 is stretched to enable the third spring 18 to deform to generate acting force, gas in the cavity is extruded outwards, at the moment, the second one-way valve is closed, the first one-way valve is closed, gas is sprayed out through the gas pipe 10, the pipe body 6 and the gas blowing pipe 7, and the sprayed out gas can spray gas at the joint between the valve plate 25 and the shell 1, impacting the joint of the valve plate 25 and the top wall of the shell 1 to help the valve plate 25 and the shell 1 to separate from each other, so that the valve plate 25 can be reset, and avoiding the influence of blocking the air outlet hole due to the failure of normal resetting of the valve plate 25 on normal use, the fuel oil in the shell 1 flows back into the fuel tank through the return hole 12, when the extrusion structure 15 moves in the direction away from the support plate 16, the press plate 19 is pulled by the pull rope 22 and the pull rope to move in the direction close to the tube body 6, and the fourth spring 20 is compressed to deform the press plate to generate an acting force, and simultaneously the air blowing tube 7 is driven to be shortened, so that the air blowing tube 7 does not influence the attachment of the valve plate 25 and the shell 1, when the extrusion structure 15 is reset, the pulling force on the pull rope 22 and the pull rope is reduced, the fourth spring 20 releases the acting force to drive the press plate 19 and the air blowing tube 7 to reset, so that the end of the air blowing tube 7 continuously extends to make the end close to the valve plate 25, make in casing 1 because the car that overturns degree of toppling over is big and when being full of the fuel, when the vehicle resumes normally, inside fuel flows into the fuel tank through backward flow hole 12, flowing fuel can with the gas contact that blows out through gas blow pipe 7, reduce the impact force of gas to the junction between valve plate 25 and the casing 1, constantly be close to through the port of gas blow pipe 7 and valve plate 25, make can protect the gas that blows out, reduce the influence of flowing fuel to the impact force of gas, reduce the weakening of gas impact force, promote the impact force to valve plate 25 and casing 1 junction, and then promote the separation effect to between valve plate 25 casing 1, if gas blow pipe 7 extends to when conflicting with valve plate 25 department, valve plate 25 still can't separate with casing 1 roof, can carry out the shovel to one side of valve plate 25 and casing 1 laminating department through the one end of gas blow pipe 7 of continuation extension, make help valve plate 25 and casing 1 separate.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a spacing overflow valve of car oil tank oiling, includes casing (1), its characterized in that: the top of casing (1) is equipped with top cap (2), the outside lower part equidistance of casing (1) is encircleed and has been seted up gas pocket (3), the inside of casing (1) is equipped with case (4), the spacing groove has been seted up to the inner wall of casing (1), slidable mounting has the stopper in the spacing groove, stopper and case (4) outside fixed connection, the bottom of case (4) is through first spring (5) and casing (1) diapire fixed connection, the middle part of casing (1) and top cap (2) all is equipped with the venthole, the diapire of casing (1) is equipped with backward flow hole (12), the top of case (4) is equipped with the valve plate subassembly that is used for sealing the venthole, the roof symmetry fixed mounting of casing (1) has body (6), the inboard of body (6) is equipped with a plurality of gas blow pipe (7), the inside of gas blow pipe (7) is equipped with first check valve, the roof of casing (1) is equipped with the air feed subassembly that is used for in body (6).
2. The automobile oil tank oiling limit overflow valve according to claim 1, characterized in that: the air feed subassembly includes cylinder body (8) of fixed connection on casing (1) roof, the inner wall middle part of cylinder body (8) is equipped with the baffle, the baffle is divided into two equal cavities of space size in with cylinder body (8), the outside of cylinder body (8) is equipped with a pair of breathing pipe (9) that communicate with two cavities respectively, the inside of breathing pipe (9) is equipped with the second check valve, the cavity passes through gas pipe (10) and body (6) intercommunication, slidable mounting has piston (11) in the cavity, the outside of piston (11) is equipped with the promotion subassembly that is used for promoting its horizontal migration.
3. The automobile fuel tank oil injection limiting overflow valve according to claim 2, characterized in that: the promotion subassembly includes push rod (13) that fixed connection kept away from baffle one side in piston (11), the one end that piston (11) were kept away from in push rod (13) extends to the outside of cylinder body (8), the roof fixed mounting of casing (1) has guide rail (14), the inside slidable mounting of guide rail (14) has extrusion structure (15) that are used for extruding push rod (13) to make its horizontal migration, there is support plate (16) bottom of guide rail (14) through connecting rod fixed mounting, the top of support plate (16) is through second spring (17) and extrusion structure (15) fixed connection, the outside cover of push rod (13) is equipped with third spring (18), the both ends of third spring (18) respectively with cylinder body (8) and piston (11) fixed connection.
4. The automobile oil tank oiling limit overflow valve according to claim 3, characterized in that: the extrusion structure (15) is specifically arranged to be a plate-shaped component which is close to one side of the cylinder body (8) and is provided with a downward inclined surface, guide blocks are fixedly arranged on two sides of the extrusion structure (15), and the guide blocks are arranged in the guide rail (14) in a sliding mode.
5. The automobile oil tank oiling limit overflow valve according to claim 4, characterized in that: the utility model discloses a flexible pipe of air blow pipe (7), including the fixed mounting of one end equidistance of air blow pipe (7) in the inboard of body (6), the one end tilt up of body (6) is kept away from in air blow pipe (7), air blow pipe (7) and the inside intercommunication of body (6), the fixed cover in one side of keeping away from body (6) of air blow pipe (7) is equipped with clamp plate (19), the outside cover of air blow pipe (7) is equipped with fourth spring (20), the both ends of fourth spring (20) respectively with body (6) and clamp plate (19) fixed connection, the outside of extrusion structure (15) is equipped with the pulling subassembly that is used for pulling clamp plate (19) to making its motion to being close to body (6) direction.
6. The automobile oil tank oiling limit overflow valve according to claim 5, characterized in that: the pulling subassembly includes guide roll frame (21) of fixed connection in body (6) bottom, the inside of guide roll frame (21) is equipped with the deflector roll, guide roll frame (21) number corresponds with clamp plate (19), the bottom fixedly connected with haulage rope of clamp plate (19), the haulage rope is walked around the below of deflector roll, and is a plurality of the common fixedly connected with stay cord (22) of one end of clamp plate (19) are kept away from to the haulage rope, the one end and the extrusion structure (15) outside fixed connection of haulage rope are kept away from in stay cord (22).
7. The automobile fuel tank oil injection limiting overflow valve according to claim 1, characterized in that: the valve plate subassembly includes adjustable shelf (23) at case (4) top of fixed mounting, the inside rotation of adjustable shelf (23) installs the loose axle, the outside of loose axle has disk seat (24) through L shaped plate fixed mounting, the top of disk seat (24) is equipped with valve plate (25).
8. The automobile oil tank oiling limit overflow valve according to claim 7, characterized in that: and a cross rod is fixedly arranged on the upper part of one side, far away from the valve seat (24), of the movable frame (23).
9. The automobile fuel tank oil injection limiting overflow valve according to claim 7, wherein: the middle of the top end of the valve core (4) is provided with a bulge (26), and the top of the bulge (26) is abutted against the middle of the bottom end of the valve seat (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210974373.3A CN115289260B (en) | 2022-08-15 | 2022-08-15 | Oil injection limit overflow valve of automobile oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210974373.3A CN115289260B (en) | 2022-08-15 | 2022-08-15 | Oil injection limit overflow valve of automobile oil tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115289260A true CN115289260A (en) | 2022-11-04 |
| CN115289260B CN115289260B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210974373.3A Active CN115289260B (en) | 2022-08-15 | 2022-08-15 | Oil injection limit overflow valve of automobile oil tank |
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| Country | Link |
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| CN (1) | CN115289260B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2204959A1 (en) * | 1971-02-07 | 1972-09-07 | British Leyland (Austin Morris) Ltd , Longbndge, Birmingham (Großbritannien) | Internal combustion engine with spark ignition |
| JPH1185U (en) * | 1999-02-01 | 1999-07-13 | 株式会社パイオラックス | Connector for fuel tank |
| CN202349334U (en) * | 2011-12-06 | 2012-07-25 | 孙达立 | Overflow shut-off valve |
| CN205149519U (en) * | 2015-10-21 | 2016-04-13 | 郑州日产汽车有限公司 | Be suitable for car fuel tank of ORVR system |
| CN106493135A (en) * | 2016-12-12 | 2017-03-15 | 北京神雾环境能源科技集团股份有限公司 | A kind of injection system for gluing glutinous tar for clearing up electronic waste pyrolysis oven inwall |
| CN108612900A (en) * | 2018-05-28 | 2018-10-02 | 三河平恩康汽车技术有限公司 | Valve EGR |
-
2022
- 2022-08-15 CN CN202210974373.3A patent/CN115289260B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2204959A1 (en) * | 1971-02-07 | 1972-09-07 | British Leyland (Austin Morris) Ltd , Longbndge, Birmingham (Großbritannien) | Internal combustion engine with spark ignition |
| JPH1185U (en) * | 1999-02-01 | 1999-07-13 | 株式会社パイオラックス | Connector for fuel tank |
| CN202349334U (en) * | 2011-12-06 | 2012-07-25 | 孙达立 | Overflow shut-off valve |
| CN205149519U (en) * | 2015-10-21 | 2016-04-13 | 郑州日产汽车有限公司 | Be suitable for car fuel tank of ORVR system |
| CN106493135A (en) * | 2016-12-12 | 2017-03-15 | 北京神雾环境能源科技集团股份有限公司 | A kind of injection system for gluing glutinous tar for clearing up electronic waste pyrolysis oven inwall |
| CN108612900A (en) * | 2018-05-28 | 2018-10-02 | 三河平恩康汽车技术有限公司 | Valve EGR |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115289260B (en) | 2023-04-28 |
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