Summary of the invention
The purpose of this utility model is to propose that a kind of volume is little, lightweight and adjusting means is positioned at the built-in regulation petroleum vapor recovery nozzle of front end.
The purpose of this utility model and solve it and technical problem is that and realize by the following technical solutions.According to the one built-in regulation petroleum vapor recovery nozzle that the utility model proposes, including grip, gun body, spanner positioned there between, oil-feed path in this gun body is sequentially provided with regulation front valve shell, group of magnets, copper valve, enclosed valve, self-styled copper sheathing, self-styled spool, self-styled spring cup and flowline, this enclosed valve is fixed on self-styled valve shaft and is connected with copper valve by self-styled valve shaft, being placed with needle roller in the groove of this self-styled copper sheathing, needle roller departs from the groove of self-styled copper sheathing under the drive of diaphragm;
Spanner one end is provided with poke rod, and the other end is provided with card of putting into gear;The end of poke rod pushes against self-styled spool, and when stirring spanner, poke rod promotes the reach of self-styled spool;Card of putting into gear carries out spacing by the backing pin on grip;
Outlet pipe sleeve is contained in fuel-displaced fixing pipe, and annular gap therebetween constitutes fairway;The bottom of flowline and fuel-displaced fixing pipe junction is provided with the regulating QI hole adjusting gas liquid ratio, is provided with adjustment screw in this regulating QI hole;Adjust and at the fuel-displaced fixing pipe of tip of screw, be provided with the backing pin preventing adjusting toner screw.Reclaim oil gas and enter regulating QI hole from annular gap, entered inside gun body by regulating QI hole, eventually enter into sunken tank.
The purpose of this utility model and solve its technical problem and also use techniques below measure to realize further.
Aforesaid built-in regulation petroleum vapor recovery nozzle, described regulation valve body is provided with air-path interface, is connected with Pull breaking ualve or sebific duct by inserting mode, and rear end, without special air register, effectively reduces cost.
Aforesaid built-in regulation petroleum vapor recovery nozzle, utilize the pressing of O of Pull breaking ualve center tip or sebific duct inner pipe joint to seal gas circuit after described regulation valve body and Pull breaking ualve or sebific duct grafting, gun body is threadeded with the coupling of Pull breaking ualve or sebific duct, coupling end is provided with sealing ring, seals oil-feed path after tightening.
Aforesaid built-in regulation petroleum vapor recovery nozzle, in described flowline is all set in recovery cover with fuel-displaced fixing pipe and is fastened by nylon cable tie.
Aforesaid built-in regulation petroleum vapor recovery nozzle, described flowline is sealed by interference fits with fuel-displaced fixing pipe.
Aforesaid built-in regulation petroleum vapor recovery nozzle, described adjustment tip of screw is installed on the sealing ring preventing oil gas from leaking.
Aforesaid built-in regulation petroleum vapor recovery nozzle, described adjustment screw rotates clockwise, and air inflow reduces;Rotating counterclockwise, air inflow increases.
Aforesaid built-in regulation petroleum vapor recovery nozzle, described sealing ring hardness is 70-75A, and material is nitrile rubber, oil resistant gas corrosion and low temperature resistant.
Aforesaid built-in regulation petroleum vapor recovery nozzle, described adjustment screw is fabricated to interior hexagonal structure, and its material is rustless steel, wear-resistant, adjusts simple.
Aforesaid built-in regulation petroleum vapor recovery nozzle, described backing pin is rustless steel opening backing pin.
Aforesaid built-in regulation petroleum vapor recovery nozzle, is additionally provided with in described nozzle and faces upward rifle Self-sealing valve.
By technique scheme, a kind of built-in regulation petroleum vapor recovery nozzle of this utility model has the advantage that
1. weight, can make gas station attendant, especially women labor intensity be substantially reduced;
2. volume diminishes, and places lighter, without interference on fuel charger;
The most easy to adjust, when gas liquid ratio can not meet use demand, it is only necessary to the regulation screw adjusting bottom at oil pipe can meet the requirement of use;
4. gun body optimization of inside structure, compressive resistance fluctuating nature improves, and maximum oil mass can reach 42L/mi n;
5. No clean is safeguarded, after gun body internal structure adjusts, gasoline can be made to be lubricated by inner body while refueling, it is ensured that the motility of each part, gasoline can arrive all sites within gun body simultaneously, without dead angle;
6. nozzle rear portion grip uses the conduction PP material that electric conductivity is good, and the electrostatic that can be carried by human body when using in the winter time is quickly delivered at earth conductor cable, prevents sparking from causing accident.
In sum, a kind of built-in regulation petroleum vapor recovery nozzle of this utility model is arranged on refueling line front end and is attached with Pull breaking ualve, carries out secondary oil gas recovery.This nozzle compares with traditional rear-mounted regulation nozzle, and volume diminishes, weight saving, and adjusting means, in nozzle front end, adjusts convenient, and regulation valve is integrated in the gun body at nozzle rear portion, only need to can meet use requirement by the regulation screw of front end.
Described above is only the general introduction of technical solutions of the utility model, in order to be able to better understand technological means of the present utility model, and can be practiced according to the content of description, and for above and other objects, features and advantages of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of built-in regulation petroleum vapor recovery nozzle of this utility model.
Fig. 2 A is the nozzle oil gas of the present utility model schematic diagram by state.
Fig. 2 B is the schematic diagram of nozzle oil gas closed state of the present utility model.
[main element symbol description]
1: spanner 2: grip
3: backing pin 4: card of putting into gear
5: filter screen 6: rear sheath
7: regulation front valve shell 8: group of magnets
9: gun body 10: copper valve
11:O type circle 12: self-styled valve shaft
13: enclosed valve 14: self-styled copper sheathing
15: diaphragm 16: pressure regulator valve
17: needle roller 18: poke rod
19: front sheath 20: face upward rifle Self-sealing valve
21: self-styled spool 22: self-styled spring cup
23: nylon cable tie 24: fuel-displaced fixing pipe
25: recovery cover 26: flowline
27: adjust screw 28:O type circle
29: backing pin 31: holding screw
Detailed description of the invention
By further illustrating the technological means and effect that this utility model taked by reaching predetermined goal of the invention, below in conjunction with accompanying drawing and preferred embodiment, a kind of petroleum vapor recovery that the utility model proposes foundation coaxially reverse its detailed description of the invention of rubber hose coupling, structure, feature and effect thereof, after describing in detail such as.
Refer to Fig. 1, Fig. 2 A and Fig. 2 B, the built-in regulation petroleum vapor recovery nozzle that the utility model proposes operationally stirs spanner 1, the upper end utilizing lever principle poke rod 8 promotes self-styled spool 12 to move forward, and enclosed valve 13 is opened under the effect of oil-feed product pressure.Card 4 of putting into gear dials to backing pin 3 and fixes gear, and product oil first flows through filter screen 5, opens regulation front valve shell 7, copper valve 10, enclosed valve 13 by self priming pump pressure, flows to automotive oil tank from flowline 26.In refueling process, in automotive oil tank, oil gas enters regulating QI hole by the annular gap between fuel-displaced fixing pipe 24, flowline 26, gas liquid ratio adjustment is carried out by this regulating QI hole, rotate clockwise adjustment screw 27 for reducing tolerance, rotate counterclockwise as increasing tolerance, it is internal that oil gas flows through gun body 9, eventually enters into sunken tank.When oil is filled it up with, the suction hole of flowline 26 is flooded by fluid, become negative pressure state from suction condition in making gun body 9, promote diaphragm 15 to float, drive simultaneously and move on needle roller 17, needle roller 17 departs from self-styled copper sheathing 14 groove, nozzle jumps rifle automatically, and self-styled copper sheathing 14 resets to the right under the retroaction of spring, promotes enclosed valve 13 to move to right, there is spring to reset after enclosed valve 13, close copper valve 10 and stop refueling.Card 4 of putting into gear resets under spring action, and oiling completes.
The nozzle that the utility model proposes can install the assembly having without pressure self-sealing function, is applied to the gas station with self-service refueling machine, prevents maloperation, causes fuel oil waste and the peril such as leak.There is inside nozzle check valve, can refuel after closing oil path, prevent fuel drop out, cause waste.
The above, it it is only preferred embodiment of the present utility model, not this utility model is made any pro forma restriction, although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model, any those skilled in the art, in the range of without departing from technical solutions of the utility model, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is the content without departing from technical solutions of the utility model, any simple modification above example made according to technical spirit of the present utility model, equivalent variations and modification, all still fall within the range of technical solutions of the utility model.