Oil-gas recovery self-sealing nozzle
Technical field
The invention belongs to petrol service station bunkering facilities technical field, be specifically related to a kind of realize induction self-styled, orientation is self-styled and drip-proof oil-gas recovery self-sealing nozzle.
Background technology
Petrol service station during to automobile fuel filler, all adopts Self-closing oil feeder, and this nozzle has the function that can automatically close when the fuel tank of automobile is filled it up with.As the patent No. Self-closing oil feeder that is ZL200820121082.5, comprise rifle body, Handleset, main valve, control cock, oil outlet pipe, main valve is by main valve plug, main valve seat, piston bush, piston forms, end in piston bush and main valve plug junction is shaped with outer convex shoulder, between this outer convex shoulder and gun rack, be provided with piston bush spring, piston is placed in piston bush, its end that approaches main valve plug one end is shaped with convex shoulder, in this convex shoulder and piston bush, between step, be provided with piston spring, the other end is hinged by handle driving lever and Handleset, middle part at piston bush and piston is shaped with groove, on the diaphragm unit of control cock, be fixedly connected with a locating rack, when fueling state, roller on locating rack inserts in the groove of piston bush and piston, when filling it up with oil, locating rack is raised, automatically close main valve, realize self-sealing function.But existing self-sealing refueling gun is after main valve is closed, the oil in rifle body and gun barrel can continue to flow out to gun barrel oil outlet, and oil gun is while extracting automotive oil tank, the residual oil product in rifle body and gun barrel can water clock on the ground, cause oil product loss and environmental pollution.
And when using this self-sealing refueling gun to refuel, the oil gas producing in automotive oil tank can be dispersed in atmosphere, can work the mischief to gas station attendant's physical and mental health, can cause environmental pollution and potential safety hazard, meanwhile, has also wasted a large amount of valuable energy.Existing this nozzle does not have the function of one-handed performance simultaneously, and function is comparatively single, and operation is comparatively complicated, urgently improves.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned the deficiencies in the prior art, a kind of oil-gas recovery self-sealing nozzle is provided, it integrates, and orientation is self-styled, to respond to self-styled, oil gas recovery, antidrip and one-hand operation etc. multi-functional, fundamentally solved the existing many disadvantages of existing nozzle, self is light and handy, easy and simple to handle simultaneously.
The technical solution adopted in the present invention is: a kind of oil-gas recovery self-sealing nozzle, comprise rifle body, gun barrel, main valve, vacuum valve assembly and handle, in described rifle body, be shaped with oil product passage, described main valve and vacuum valve assembly are arranged in this oil product passage, in described oil product passage, be also provided with by pressure sensitive valve assembly induction oil product pressure and realize oil gun self-styled gear mechanism with no pressure, the inner side of described gun barrel is provided with induction valve and aspirate tube, the end of this aspirate tube is connected with described vacuum valve assembly, described gun barrel sidewall is provided with the sensing hole being connected with above-mentioned induction valve, between described aspirate tube and described vacuum valve assembly, position sensor valve module is installed, this orientation Inductance valve assembly is by valve pocket, the coniform self-styled chamber in valve pocket the place ahead and the steel ball of valve pocket inside form, the oil inlet end of described vacuum valve assembly is provided with Drop-proof valve assembly, in described rifle body, be also shaped with return gas channel, the termination of described return gas channel and described oil product passage is provided with Oil-gas Separation valve body, described gun barrel is set with the oil gas Through Flow Line (TFL) that internal diameter is greater than gun barrel external diameter outward, between described gun barrel outer wall and oil gas Through Flow Line (TFL) inwall, be configured for reclaiming the oil gas recovery approach of oil gas, this oil gas recovery approach is connected with described return gas channel.
As preferably, described oil gas Through Flow Line (TFL) is set with splash guard outward.
As preferably, the oil inlet end of described rifle body is provided with rubber hose coupling.
As preferably, ratio adjusting valve assembly is installed in described return gas channel.
As preferably, described return gas channel is arranged on described oil product passage top.
Beneficial effect of the present invention is: because the present invention is provided with position sensor valve module between aspirate tube and vacuum valve assembly, therefore when the sensing of gun barrel mouth is greater than horizontal surface position, steel ball rolls in coniform self-styled chamber, impels oil gun self-styled, the unexpected generation such as prevent that oil product from leaking; And at the oil inlet end of vacuum valve assembly, Drop-proof valve assembly is installed, and when oil gun is from being honored as a queen, this Drop-proof valve component sealing, stops oil product to pass through, and in the short time, gun barrel mouth does not have oil droplet drippage, reaches the object of saving oil product, protection of the environment; On gun barrel, set up oil gas Through Flow Line (TFL), solved the oil gas producing in automotive oil tank while refueling and can be dispersed in atmosphere, gas station attendant's physical and mental health is worked the mischief, cause environmental pollution and potential safety hazard, the problem of waste mass energy.Oil-gas recovery self-sealing nozzle of the present invention integrates that orientation is self-styled, to respond to self-styled, oil gas recovery, antidrip and one-hand operation etc. multi-functional, has the advantages such as simple to operate, performance safety reliable, long service life, suitable wide popularization and application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, comprehensive valve body; 2, splash guard; 3, oil gas Through Flow Line (TFL); 4, aspirate tube; 5, gun barrel; 6, induction valve; 7, sensing hole; 8, rubber hose coupling; 9, rifle body; 10, Oil-gas Separation valve body; 11, main valve; 12, position sensor valve module; 13, vacuum valve assembly; 14, Drop-proof valve assembly; 15, ratio adjusting valve assembly; 16, handle; 17, pressure sensitive valve assembly.
The specific embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the present invention is described in further detail.
As shown in Figure 1, a kind of oil-gas recovery self-sealing nozzle, comprise rifle body 9, gun barrel 5, main valve 11, vacuum valve assembly 13 and handle 16, described handle 16 is particular polymeric plastic material, a hand gets final product simple engage a gear, load lightens one's labor, increase work efficiency, in described rifle body 9, be shaped with oil product passage, described main valve 11 and vacuum valve assembly 13 are arranged in this oil product passage, be also provided with by pressure sensitive valve assembly 17 induction oil product pressure and realize oil gun self-styled gear mechanism with no pressure in described oil product passage.After fuel charger energising, oil product pressure impels described pressure sensitive valve assembly 17 actions, the shooting of can easily putting into gear of a light grasping member 16 of have gentle hands, and oil product i.e. normal inflow; When fuel charger cuts out, during accidental power failure etc. do not have under oil product pressure condition, it is self-styled that pressure sensitive valve assembly 17 is controlled oil gun, prevents unexpected generation.
The inner side of described gun barrel 5 is provided with induction valve 6 and aspirate tube 4, and the end of this aspirate tube 4 is connected with described vacuum valve assembly 13, and described gun barrel 5 sidewalls are provided with the sensing hole 7 being connected with above-mentioned induction valve 6.During oiling, extraneous air enters this aspirate tube 4 endlessly, and oil gun is normally worked; When oil product is filled with 7 moments of fuel tank contact induction hole, 13 moments of vacuum valve assembly find time residual air and form vacuum, impel gear mechanism release, and oil gun is self-styled.
Between described aspirate tube 4 and described vacuum valve assembly 13, position sensor valve module 12 is installed, this orientation Inductance valve assembly 12 consists of the coniform self-styled chamber in valve pocket, valve pocket the place ahead and the steel ball of valve pocket inside.When 5 mouthfuls of sensings of gun barrel are greater than horizontal surface position, position sensor valve module 12 action, steel ball enters self-styled chamber and blocks outside air and enter vacuum valve assembly 13 and then form vacuum, and oil gun is self-styled.
The oil inlet end of described vacuum valve assembly 13 is provided with Drop-proof valve assembly 14.When fuel charger power-off; the moment reduction of oil product pressure; 17 actions of pressure sensitive valve assembly; oil gun is self-styled; oil gun is from being honored as a queen, and 14 two springs of Drop-proof valve assembly move at once and seal, and oil product is stopped in oil product passage; 5 mouthfuls of gun barrels do not have oil droplet drippage in short time, reach the object of saving oil product, protection of the environment.
In described rifle body 9, be also shaped with return gas channel, described return gas channel is arranged on described oil product passage top, the termination of described return gas channel and described oil product passage is provided with Oil-gas Separation valve body 10, outside described gun barrel 5, be set with the oil gas Through Flow Line (TFL) 3 that internal diameter is greater than gun barrel 5 external diameters, the oil gas recovery approach that is configured for reclaiming oil gas between described gun barrel 5 outer walls and oil gas Through Flow Line (TFL) 3 inwalls, this oil gas recovery approach is connected with described return gas channel.On gun barrel 5, set up oil gas Through Flow Line (TFL) 3, solved the oil gas producing in automotive oil tank while refueling and can be dispersed in atmosphere, gas station attendant's physical and mental health is worked the mischief, cause environmental pollution and potential safety hazard, the problem of waste mass energy.Ratio adjusting valve assembly 15 is installed in described return gas channel, by this ratio adjusting valve assembly 15, gas liquid ratio can be adjusted to 1-1.2:1, to meet country and international standard.
Described oil gas Through Flow Line (TFL) 3 is outer is set with splash guard 2, and in refueling process, this splash guard 2 and automobile fuel tank port laminating, prevent that oil gas from leaking.
The oil inlet end of described rifle body 9 is provided with rubber hose coupling 8, by this rubber hose coupling 8, links together with sebific duct.
It is gasoline that oil gas of the present invention reclaims nozzle working medium, and operation pressure is 0.2MPa, and flow is 50L/min, and 5 mouthfuls of gun barrels to rubber hose coupling 8 resistance are not more than 4 ohm.The present invention is combined in the parts such as vacuum valve assembly 13, pressure sensitive valve assembly 17, position sensor valve module 12, Drop-proof valve assembly 14, oil gas Through Flow Line (TFL) 3 on rifle body 9 originally, make oil-gas recovery self-sealing nozzle of the present invention integrate that orientation is self-styled, to respond to self-styled, oil gas recovery, antidrip and one-hand operation etc. multi-functional, design precision, be skillfully constructed rationally, there is the advantages such as simple to operate, performance safety is reliable, long service life, suitable wide popularization and application.
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process with this, the equivalence of doing according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.