CN2573470Y

CN2573470Y - Automatic blowout preventing bubbleless oiling gun

Info

Publication number: CN2573470Y
Application number: CN 02276707
Authority: CN
Inventors: 雷斌蕃
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-30
Filing date: 2002-09-30
Publication date: 2003-09-17
Anticipated expiration: 2012-09-30

Abstract

The utility model relates to an automatic blowout preventing bubbleless oiling gun which is composed of a gun body, an oil outlet pipe which is in butt joint with the gun body, an oil inlet pipe which is used as a handle of the tail part of the gun body, an air lung of the top part of the gun body, a channel independently capable of air inlet and air outlet which is communicated with the air lung, a blocking switch on an air outlet channel, an oil outlet switch on the gun body and an unclamping device in a protecting handle of the gun body. The oiling gun is used for bubbleless oiling when the blocking switch is closed because the oiling gun is provided with the blocking switch on the air outlet channel of the side wall of the gun body. The unclamping device which is connected with an automatic clamping pin on the oil outlet switch ensures the phenomenon of oil blowout because the automatic clamping pin is forgotten to unclamp when the gun is lifted again. The oiling gun of the structure can achieve automatic bubble oiling, a quantitative bubbleless oiling and non-automatic bubbleless oiling, can effectively prevent the oil blowout, and can be an ideal oiling tool which is convenient, saving and safe in an oiling station.

Description

The automatic still nozzle of blowout prevention

(1) technical field:

The utility model relates to a kind of device that utilizes pressure filling liquid, particularly a kind of nozzle that uses at petrol service station.

(2) background technology:

The up-to-the-minute nozzle that domestic big or small petrol service station uses is that a kind of patent No. is 98247417.2 the described automatic oiling rifle of Chinese patent, the opening of rifle body front end and the socket of oil outlet pipe afterbody, because the effect of step, socket place forms a cavity, one pipeline is arranged in the oil outlet pipe, front end communicates with atmosphere in fuel-displaced tube wall front portion, tail end communicates with socket place cavity front portion, on the rifle body front opening wall air flue is arranged, the front portion communicates with the socket place cavity, and afterbody leads in the air lung at rifle body top, and the position that links to each other with socket place cavity rear portion is an oil outlet pipe afterbody delivery valve seat, through hole is arranged on the delivery valve seat, cavity is communicated with the oil outlet pipe inner chamber; Crossing at the rifle body below the air lung has a cylindrical extension power pin to hold body in the oil pocket, one thin type sheet rubber holds body with the air lung with the power of extension pin and separates, the bottom hung of sheet rubber air lung control taper pin, hold intracoelomic cavity top exit skirt at the power of extension pin three steel balls and air lung control taper pin card connection are arranged, the expansion and the contraction of three steel balls controlled at extension power pin top, it is protruding that extension power pin afterbody passes rifle body bottom, rifle body afterbody has the handle that serves as oil inlet, there is the piston of a control oil-feed in the portion of UNICOM of oil inlet and mistake oil pocket, the piston control stalk is connected on the piston, the other end passed oil pocket and stretched at rifle external, go out oil break switch front end and the power of extension pin hinge connection, stage casing and piston control stalk card connection, going out front, oil break switch tip-tilted afterbody grip has an automatic bayonet lock, automatically below the bayonet lock rifle body protect on a bayonet lock block of fixing is arranged.Pull out oil break switch during oiling, reason owing to the elastic force size, at first be to be fulcrum with the piston control stalk, extension power pin is torn downwards, hanging the power pin when three steel balls block air lung control taper pin is fixed, balance pivot forwarded extension power pin to and went out on the oil break switch hinge connection point this moment, go out oil break switch and upwards promote the piston control stalk, open the piston at oil inlet place, oil entered oil pocket, pushing open can automatically reset check valve plug, and oil enters oil outlet pipe through the oil outlet pipe delivery valve seat, and the oil of high speed and high pressure is brought air into during through delivery valve seat in a large number, add the composition that the oil that has air filled cavity, be the so-called bubble oiling that has, block bayonet lock link stopper with automatic bayonet lock this moment, can realize quantitatively having bubble to refuel and have automatically to steep and refuel.When pasta soaked the admission port of the fuel-displaced mouth of pipe, free air diffuser was intercepted during automatic oiling, gave vent to anger and still continued, make and form vacuum in the air lung, produce negative pressure, the thin rubber sheet raises up, and drives the control that air lung control taper pin breaks away from three steel balls in extension power pin top, extension power pin loses the application force of fulcrum, go out oil break switch and lose control of the piston control stalk, reset, close oil inlet passage at the effect lower piston control stalk of elastic force, automatically bayonet lock pine card stops to refuel.When quantitative refueling, when configuring the concrete oil mass on the fuel charger or the amount of money, automatic bayonet lock on the card, the nozzle automatic oiling, fuel charger stops automatically when number arrives, but go out this moment oil break switch can be when automatic oiling such automatic disengaging mode of operation, will go out that oil break switch resets and when directly hanging arms when the operator forgets, when rifle was carried in oiling once more, fuel injection event will take place.The nozzle of this structure does not unclamp the pass device automatically, a large amount of fuel injection events can take place, produce dangerous and waste, when refueling,, have one deck bubble on the pasta in the adding fuel tank in addition because air and oil phase are sneaked into, such oiling mode causes oil volatility big especially, be that a kind of waste is also under cover dangerous, air is mixed in together with oil, can not satisfy the requirement that client checks oil.

(3) utility model content:

The utility model provides a kind of automatic blowout prevention still nozzle, proposes the rifle oiling after hanging arms once more and fuel injection event can not occur, and it can also realize still quantitative refueling and non-automatic still oiling in addition.

The still nozzle of a kind of automatic blowout prevention, comprise the rifle body, rifle body afterbody serves as the oil inlet of handle, the oil outlet pipe anterior at the rifle body and the rifle body docks, form inlet chamber and outlet chamber at joint oil outlet pipe and rifle body, inlet chamber is being communicated with the air lung at rifle body top, extension power pin in the rifle body below the air lung holds has extension power pin to stretch at rifle external in the body, oil-feed piston control stalk is protruding in the rifle body to be arranged side by side with the power of extension pin, go out oil break switch front end and the power of extension pin hinge connection, backward with the clamping of piston control stalk, automatically the bayonet lock hinge is associated in out on the oil break switch, torsion spring is against bottom, automatic bayonet lock hinge connection place, the rifle body protects under the rifle body, one end and oil inlet hinge connection, the other end connects firmly in rifle body front portion, it is characterized in that: be stuck in the automatic bayonet lock that goes out oil break switch hinge connection and be installed in the rifle body and protect on the interior loose card device.

The pine card device includes the bayonet lock block, anchor plate and driving lever; The bayonet lock block is placed in automatic bayonet lock below rifle body and protects in the handle, front end and rifle body protect the hinge connection, torsion spring is against bottom, bayonet lock block hinge connection place, anchor plate is slidably mounted on bayonet lock block afterbody rifle body and protects in the handle, its front end bayonet lock block afterbody to pop-up, and driving lever hinge connection is installed in the rifle body and protects an afterbody corner, and torsion spring is against bottom, driving lever hinge connection place, the bottom of driving lever is inserted in the hole of anchor plate afterbody, and the high-end rifle body that leans against of driving lever protects on the window of the vertical handgrip of afterbody corner.

Be provided with air gate in the air lung in addition, air gate is communicated with the outlet passageway in the rifle body, and the other end of outlet passageway is communicated with outlet chamber with place, rifle body front end junction at oil outlet pipe; Have on the oil outlet pipe one add intercept behind the seal ring inlet chamber the preceding and after the boss of outlet chamber; Be mounted with the logical switch of resistance of control gas circuit on the rifle body with the corresponding position of outlet passageway.

Outlet passageway is arranged in the thickening sidewall that fuses with rifle body one side.

The interior prolate shape extension power pin of crossing the oil pocket place of rifle body holds body and rifle body one side thickening sidewall fuses.

Extension power pin holds the top that hangs the power pin in the intracoelomic cavity and is fixedly connected with at least two traction steel wires, and the other end hinge of traction steel wire is associated with roller, holds intracoelomic cavity top exit skirt place roller and air lung control taper pin card connection at the power of extension pin.

The utility model can control air in refueling process enter, realize still oiling, fuel injection event when the pine card device can effectively prevent to carry rifle again, rifle body internal side wall and the power of extension pin hold the improvement of body, make novel nozzle profile with cross oil mass aspect the same with existing nozzle, kept the function of former nozzle, expanded new function, made that whole refueling process is convenient, saving, safety.

(4) description of drawings:

Fig. 1 is a nozzle front section view in the utility model exemplary embodiment.

Fig. 2 is the local figure of nozzle backsight in the embodiment.

Fig. 3 is a nozzle A-A part sectional view in the embodiment.

(5) specific embodiment:

The utility model agent structure is a rifle body 9, there is the oil outlet pipe 1 of socket with it the front, the pipeline that handle is served as at rifle body 9 rear portions is an oil inlet 11, air lung 4 is positioned at rifle body 9 tops, being close to air lung 4 has the oil-feed control setup, crosses in the oil pocket 25 in the rifle body 9, has extension power pin to hold body 23 under the air lung 4, go out oil break switch 10 and flexibly connecting extension power pin 18 and oil-feed piston control stalk 16, movable protecting is associated in rifle body 9 belows to 17 hinges.As shown in Figure 1, oil outlet pipe 1 is with after rifle body 9 docks, be formed with former and later two cavitys, the front is an inlet chamber 2, the back is outlet chamber 22 as shown in Figure 3, on the junction of oil outlet pipe 1 and rifle body 9 boss 19 is arranged, the outlet chamber 22 that installs additional behind the seal ring fwd inlet chamber 3 and back intercepts, the free air diffuser 3 that inlet chamber 2 is communicated with in the rifle body 9, induction opening in free air diffuser 3 and the air lung 4 connects, air gate 8 is arranged in the air lung 4 in addition, the outlet passageway 20 that is communicated with air gate 8 is as Fig. 2, shown in Figure 3 have number of ways and method to be communicated to outlet chamber 22, for outward appearance and the unnecessary part of increase that does not influence former fueling cavity, outlet passageway 20 should be arranged to built-in, and former nozzle rifle body 9, crossing oil pocket 25 both sides is thin type sealing clamps, can't satisfy the requirement of built-in type, way of the present utility model is that thickening in the side direction of rifle body 9 is formed disjunctor sidewall 24, be embedded in that air gate 8 is communicated with in outlet passageway 20 1 ends in the sidewall 24 and the air lung 4, the other end and outlet chamber 22 are communicated with, this mode guarantees air inlet and each have their own passage of giving vent to anger, mutually noninterfere; On the sidewall 24 and outlet passageway 20 corresponding positions also are equipped with the logical switch 21 of the resistance of controlling the gas circuit of giving vent to anger, and blocking-up outlet passageway 20 can be realized quantitative still oiling; In order to guarantee that oil pocket 25 had enough spaces, the utility model scheme is held body 23 with original columniform extension power pin and is made prolate shape into and fuse with sidewall 24, extension power pin holds body 23 inner structures also change, the top of extension power pin 18 is fixedly connected with at least two traction steel wires 7, the other end hinge of traction steel wire 7 is associated with roller 5, hold exit skirt place, body 23 inner chamber top roller 5 and air lung control taper pin 6 card connection at the power of extension pin, go out to cut with scissors on the oil break switch 10 and be associated with automatic bayonet lock 15, torsion spring is against the bottom at automatic bayonet lock 15 hinge connection places, automatically bayonet lock 15 and loose card device clamping, the pine card device is a kind of automatic bayonet lock 15 mode of operations that can automatically terminate when hanging arms, the device of oil spout when preventing to carry rifle once more, the utility model utilizes the rifle body to protect and has designed this device to 17, the pine card device comprises bayonet lock block l4, anchor plate 13 and driving lever 12, rifle is provided with bayonet lock block 14 in protecting from 17 below automatic bayonet lock 15, its front end hinge is associated in the rifle body and protects on 17, torsion spring is against bottom, bayonet lock block 14 hinge connection place, because the rifle body protects the position-limiting action 17, bayonet lock block 14 can only outwards rotate, anchor plate 13 is slidably mounted on bayonet lock block 14 afterbody rifle bodies and protects in 17, its front end bayonet lock block 14 afterbodys to pop-up, driving lever 12 vertical hinge connection are installed in the rifle body and protect 17 afterbody corners, torsion spring is against bottom, driving lever 12 hinge connection place, the low side of driving lever 12 is inserted in the hole of anchor plate 13 afterbodys, and the high-end rifle body that leans against of driving lever 12 protects on the window of the vertical handgrip of 17 afterbody corners.Quantitative refueling finishes when hanging arms, set pin on the gun platform promotes driving lever 12 on the loose card device by the window on the vertical handgrip, driving lever 12 rotates to be stirred anchor plate 13 backward, bayonet lock block 14 is pressed downwards by automatic bayonet lock 15 after losing supporting, automatically after bayonet lock 15 takes off card, bayonet lock block 14 resets, and oil circuit switch 10 is in halted state at this moment.

Claims

1, the still nozzle of a kind of automatic blowout prevention, comprise the rifle body, rifle body afterbody serves as the oil inlet of handle, the oil outlet pipe anterior at the rifle body and the rifle body docks, form inlet chamber and outlet chamber at joint oil outlet pipe and rifle body, inlet chamber is being communicated with the air lung at rifle body top, extension power pin in the rifle body below the air lung holds has extension power pin to stretch at rifle external in the body, oil-feed piston control stalk is protruding in the rifle body to be arranged side by side with the power of extension pin, go out oil break switch front end and the power of extension pin hinge connection, backward with the clamping of piston control stalk, automatically the bayonet lock hinge is associated in out on the oil break switch, torsion spring is against bottom, automatic bayonet lock hinge connection place, the rifle body protects under the rifle body, one end and oil inlet hinge connection, the other end connects firmly in rifle body front portion, it is characterized in that: be stuck in the automatic bayonet lock (15) that goes out oil break switch (10) hinge connection and be installed in the rifle body and protect on the loose card device in (17).

2, the still nozzle of automatic blowout prevention according to claim 1, it is characterized in that: loose card device includes bayonet lock block (14), anchor plate (13) and driving lever (12); Bayonet lock block (14) is placed in automatic bayonet lock (15) below rifle body and protects in (17), front end and rifle body protect (17) hinge connection, torsion spring is against bottom, bayonet lock block (14) hinge connection place, anchor plate (13) is slidably mounted on bayonet lock block (14) afterbody rifle body and protects in (17), its front end bayonet lock block (14) afterbody to pop-up, driving lever (12) hinge connection is installed in the rifle body and protects (17) afterbody corner, torsion spring is against bottom, driving lever (12) hinge connection place, the bottom of driving lever (12) is inserted in the hole of anchor plate (13) afterbody, and the high-end rifle body that leans against of driving lever (12) protects on the window of the vertical handgrip of (17) afterbody corner.

3, the still nozzle of automatic blowout prevention according to claim 1 and 2, it is characterized in that: be provided with air gate (8) in the air lung (4) in addition, air gate (8) is communicated with the outlet passageway (20) in the rifle body (9), and the other end of outlet passageway (20) is communicated with outlet chamber (22) with place, rifle body (9) front end junction at oil outlet pipe (1); Have on the oil outlet pipe (1) one add intercept behind the seal ring inlet chamber (2) the preceding and after the boss (19) of outlet chamber (22); Rifle body (9) is gone up and the corresponding position of outlet passageway (20) is mounted with the logical switch (21) of the resistance of controlling gas circuit.

4, the still nozzle of automatic blowout prevention according to claim 3 is characterized in that: outlet passageway (20) is arranged in the thickening sidewall (24) that fuses with rifle body (9) one sides.

5, the still nozzle of automatic blowout prevention according to claim 3 is characterized in that: cross prolate shape that oil pocket (25) locates in the rifle body (9) and hang the power pin and hold body (23) and fuse with rifle body (9) one sides thickening sidewalls (24).

6, the still nozzle of automatic blowout prevention according to claim 4 is characterized in that: cross prolate shape that oil pocket (25) locates in the rifle body (9) and hang the power pin and hold body (23) and fuse with rifle body (9) one sides thickening sidewalls (24).

7, the still nozzle of automatic blowout prevention according to claim 5, it is characterized in that: extension power pin holds the top that hangs power pin (18) in body (23) inner chamber and is fixedly connected with at least two traction steel wires (7), the other end hinge of traction steel wire (7) is associated with roller (5), holds body (23) inner chamber top exit skirt place roller (5) and air lung control taper pin (6) card connection at the power of extension pin.

8, the still nozzle of automatic blowout prevention according to claim 6, it is characterized in that: extension power pin holds the top that hangs power pin (18) in body (23) inner chamber and is fixedly connected with at least two traction steel wires (7), the other end hinge of traction steel wire (7) is associated with roller (5), holds body (23) inner chamber top exit skirt place roller (5) and air lung control taper pin (6) card connection at the power of extension pin.