CN2147047Y

CN2147047Y - Improved air jet gun

Info

Publication number: CN2147047Y
Application number: CN 93203700
Authority: CN
Inventors: 叶春渊
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-10
Filing date: 1993-02-10
Publication date: 1993-11-24
Anticipated expiration: 2003-02-10

Abstract

An air jet gun has the advantages of labour saving, lightness, easy assembly, easy replacement for injection nozzles. A switch plunger piston whose head ends have bigger diameter than an inner tunnel and whose rod in the middle is thin is arranged in the inner tunnel inside the air jet gun. The length of the rod is longer than the distance between an intake port and an air outlet which are connected with the inner tunnel. The working point of a trigger towards the switch plunger piston is between a supporting point and a hand application point, which reduces operating physical force of the trigger. The joint of the injection nozzle and the jet gun is a dismountable structure, and the trigger is an easy disassembling and assembly structure corresponding to the jet gun.

Description

Improved air jet gun

The utility model relates to a kind of air gun, and You Zhiqi operation is more laborsaving, light and handy and change the air gun of the improvement of nozzle easily.

Air gun is connected on the carrier pipe termination of air compressor, in order to the ejection of control pressure-air workpiece to be cleaned is carried out the high pressure blow-gas cleaning.Known air gun, as shown in Figure 3, in spray gun body A, be provided with one upright within duct A2, on inner duct A2, the lower end respectively is provided with a pressure-air air inlet A1 and gas outlet C, and in inner duct A2, be provided with a switch plunger B that can in inner duct A2, move up and down, be pivoted with a trigger E in the below of spray gun body A in addition, the end of trigger E is connected with the lower end of switch plunger B, on appropriate location of trigger E, between itself and spray gun body A, be provided with compression spring D, mat is pulled trigger E, makes switch plunger B move down and air inlet A1 is communicated with gas outlet C and sprays pressure-air.But this kind structure is because its switch plunger B is very near apart from fulcrum, so when pulling trigger E, must do to make the top B1 of switch plunger B reduce to gas outlet C with the pressure-air ejection of ordering than the swing of wide-angle, but, the wide-angle of trigger E is pulled and will be increased the decrement of compression spring D, make the operator pull trigger E, cause hand acid, fatigue easily with big strength.The nozzle of conventional spray gun is fixed on the body, can't change, and brings inconvenience.And aspect the carrying, store of spray gun because of there not being the structure that the spy is equipped with, so undesirable.In addition, its trigger E articulates so that pin is fixing when assembling, is comparatively to bother in assembling.

Main purpose of the present utility model is to provide a kind of air gun of improvement, concern with the position of air inlet and gas outlet when mobile in spray gun body inner duct by changing switch plunger, and make trigger to the impetus of switch plunger between the fulcrum and the point of application, so that when operating trigger, can obtain identical effect with minimum strength.

An of the present utility model purpose is to provide a kind of air gun structure of improvement, and nozzle segment is designed to and can changes, thereby replaceable various nozzle; Be provided with a clasp at the spray gun body again, make it to be easier to carry or to buckle to store, and trigger assembles easily, help the production line assembling.

The purpose of this utility model can be achieved through the following technical solutions.It is larger-diameter head end that switch plunger of the present utility model is designed to two ends, chimeric O shape ring and the inner duct sealed engagement slidably that is equipped with on the external diameter of head end, it between two head ends one section body of rod than minor diameter, the length of this body of rod at least must be greater than the distance between air inlet and gas outlet, between switch plunger upper surface and inner duct upper end, be provided with a compression spring with the switch plunger biased downward, the push rod that is located at the evagination of trigger upside props up the lower surface of switch plunger, pulls trigger and can make the pressure-air ejection; Be provided with bayonet lock in the gas outlet of the spray gun body front end outside, be provided with conduit in the rearward end of discrete nozzle, on outer wall, be provided with slotted eye and insert for bayonet lock and fix, help changing nozzle in the back that turning an angle; On the spray gun body, be provided with the clasp that a Convenient button is taken or button is hung; The pivot (52) of being located at the trigger both sides is formed with the inclined-plane and is beneficial to directly enter in the pivot dress hole that is journaled into the spray gun body on its outer end.

Other purposes of the present utility model and function just can have detailed understanding to the detailed description that an embodiment carries out in conjunction with the drawings.But the following stated is only in order to illustrate preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to the utility model according to this; be with; all modification relevant of the present utility model or changes of being done under identical creating conception all should be included in the scope of the utility model intention protection.In the accompanying drawings,

Fig. 1 is the perspective appearance figure of air gun of the present utility model;

Fig. 2 is the longitudinal sectional view of air gun of the present utility model, and its operating state is shown;

Fig. 3 is the longitudinal sectional view of known spray gun, and its operating state is shown;

Fig. 4 is the perspective exploded view before trigger and the assembling of spray gun body;

Fig. 5 is the perspective exploded view before nozzle and the assembling of spray gun body front end.

As shown in Figure 1, 2, structure of the present utility model is provided with oblique handle 10, in handle 10, be provided with one and pass to the top of being arranged to upright inner duct 11, portion is provided with the gas outlet 15 that connects to inner duct 11 bottoms before spray gun body 1, and in the gas outlet the 15 front ends outsides is provided with upper and lower two bayonet locks 13, these two bayonet locks, 13 usefulness are provided with the air nozzle 6 that slotted eye 62, end be provided with conduit 61 for outer wall and are inserted in, and promptly fixedly block after turning an angle, and can unload replacing easily.The endoporus of this air nozzle 6 is fitted with the air jet pipe 4 that can stretch in the gas outlet 15 for gases at high pressure air jet pipe 4 ejections from then on.One-body molded on the top of spray gun body 1 have one can hold the clasp 12 that passes of finger and take for finger buckle or buckle on the nail that is hung on wall, so that carry or store.Be arranged on switch plunger 3 in the inner duct 11 and be designed to two head ends 32 and have bigger diameter, on the external diameter of head end 32, be embedded with O shape ring 31, be provided with between the end face of last head end 32 and inner duct 11 upper bases and compress spring 2 corresponding to inner duct 11.Switch plunger forms the body of rod than minor diameter between two head ends 32, the length of this body of rod is at least greater than the distance between air inlet 14 and the gas outlet 15.Be pivoted with a trigger 5 in the bottom of jet body 1, on the upside of this trigger 5, be provided with the push rod 51 of an evagination, in order to propping up the end face of the following head end 32 that is contained in the switch plunger 3 in the inner duct 11, by the effect of compression spring 2 with switch plunger 3 biased downward.Before not pulling trigger 5, the last head end 32 of switch plunger 3 is between air inlet 14 and gas outlet 15 and air can't be passed through, when pressing trigger 5, mat push rod 51 upwards pushes up switch plunger 3 and makes head end 32 cross the height of air inlet 14, make in the thinner shank portion between two head ends 32 and drop between air inlet 14 and the gas outlet 15, pressure-air is circulated and spray.Because the push rod 51 of trigger 5 of the present utility model is far away apart from fulcrum, can reach the gas circuit communication so only need that trigger 5 is pulled a low-angle, it is tired that the operator will can not feel.The set pivot 52 in these trigger 5 both sides is formed with the inclined-plane on its outer end, make it directly utilize indentation, there thin-walled strain and to enter realization pivot joint in the moving hole 16 of pivot along the breach 17 that is located at spray gun body 1, assemble very conveniently, more known spray gun is laborsaving, practical.

By the above as can be known, air gun of the present utility model, novel structure, and promoted effect, certain creative and practicality.

Claims

A kind of air gun of improvement, in the spray gun body, be provided with an inner duct, and air inlet and gas outlet are located at the upper and lower end of inner duct respectively, in inner duct, be provided with a switch plunger, control of the ejection of the position of this switch plunger in inner duct by the trigger that is hubbed on the spray gun body, it is characterized in that with the control gases at high pressure

It is larger-diameter head end that this switch plunger is designed to two ends, on the external diameter of head end, be embedded with 0 shape ring and inner duct sealed engagement slidably, it between two head ends one section body of rod than minor diameter, the length of this body of rod at least must be greater than the distance between air inlet and gas outlet, between switch plunger upper surface and inner duct upper end, be provided with a compression spring with the switch plunger biased downward, the push rod that is located at the evagination of trigger upside props up the lower surface of switch plunger, pulls trigger and can make the pressure-air ejection; Be provided with bayonet lock in the gas outlet of the spray gun body front end outside, be provided with conduit in the rearward end of discrete nozzle, on outer wall, be provided with slotted eye and insert for bayonet lock and fix, help changing nozzle in the back that turning an angle; On the spray gun body, be provided with the clasp that a Convenient button is taken or button is hung; The pivot (52) of being located at the trigger both sides is formed with the inclined-plane and is beneficial to directly enter in the pivot dress hole that is journaled into the spray gun body on its outer end.