CN201880713U - Blower gun - Google Patents

Abstract

The utility model provides a blower gun which comprises a front gun body, a back gun body, a piston, a seal ring and an air inflow quick-change joint; an inner cavity of the front gun body is provided with the piston and a small head end of the back gun body; one end of the piston is circular, the other end of the piston is cone-shaped, the circular end of the piston is arranged at the inner cavity of the gun body which is near to the head of the gun, and the cone-shaped end of the piston is matched with an inclined hole on the small head end of the back gun body; the small head end of the back gun body is in threaded assembly with the front gun body, and an assembly surface between the front section of the back gun body and the front gun body is provided with the sealing ring; the center of the back gun body is provided with an air vent, and the outer wall at the back of the piston is provided with a vent groove to be communicated with a vent hole of the head of the gun at the front end of the front gun body; and the back end of the vent hole of the back gun body is connected with the air inflow quick-change joint. The blower gun is used for controlling the inflow and the outflow of the air by the screw thread of the gun body, and has the advantages of being falling-resistant, shake-resistant, wear-resistant, attrition-resistant, long in service life and the like.

Description

A kind of air pressure gun

Technical field

The utility model relates to a kind of air pressure gun.

Background technology

CommonAir pressure gun is used for every profession and trade and removes foreign matters such as dust, paper powder, hair, it has rifle body, discharge head, ion air outlet, gas source switch, compressed air input port and power line, the air outlet of this structure easily breaks, gas source switch is in use malfunctioning easily, cause gas leakage, complex structure, not shatter-resistant, not vibrationproof, service life is short.

Summary of the invention

The utility model proposes a kind of easy air pressure gun structure at the problems referred to above that prior art exists.

The air pressure gun that the utility model proposes includes front gun body, rear lance, piston, sealing ring and air inlet hydraulic quick coupler.

Be equipped with the little head end of piston and rear lance in the inner chamber of described front gun body;

Described piston one end is circular, an end be taper, its circular end is assemblied in the front gun body inner chamber by the rifle head, the inclined hole of taper one end and the little head end of rear lance is complementary;

Little head end of described rear lance and front gun body assemble by screw thread, and the fitting surface of its leading portion and front gun body is provided with sealing ring;

There is the passage of perforation at the center of described rear lance, has the venthole of the front end rifle head of air channel and front gun body to connect on the rear portion outer wall of described piston;

The passage rear end of described rear lance is connected to the air inlet hydraulic quick coupler.

This air pressure gun is simple in structure, and is easy to use, anti-falls, antivibration, wear-resisting, loss prevention long service life.

Description of drawings

Fig. 1 is the structural representation of this air pressure gun;

Fig. 2 is this air pressure gun part decomposition texture schematic diagram;

Fig. 3 A is the outline drawing of piston 3; Fig. 3 B is the right view of Fig. 3 A.

The specific embodiment

Referring to Fig. 1 and Fig. 2, this air pressure gun includes front gun body 4, rear lance 2, piston 3, sealing ring 7 and air inlet hydraulic quick coupler 1.Be equipped with the little head end of piston 3 and rear lance 2 in the inner chamber of front gun body 4.Piston 3 one ends are circular, an end be taper, piston need not to fix, its circular end is placed directly in the inner chamber of front gun body 4 by the first end of rifle, its taper one end relies on the front end of rear lance 2, over against the bellmouth of the center roof vent of rear lance 2.The little head end of rear lance 2 assembles, is connected (seeing the A indication) with front gun body 4 by screw thread, and the piston that the degree of tightness of rotation screw thread can be regulated rear lance plays clutch, gauge tap effect.The fitting surface of the leading portion of rear lance 2 and front gun body 4 is provided with sealing ring 7, can prevent gas to flow backwards.There is the passage of perforation at the center of rear lance 2, has air channel 6(to see Fig. 3 A and Fig. 3 B on the rear portion outer wall of piston 3), connect with the venthole 5 of the front end rifle head of front gun body.The passage rear end of rear lance 2 is connected to air inlet hydraulic quick coupler 1.

The gas trend of air pressure gun: through ready-packaged joint → rear lance → piston → front gun body

This air pressure gun is made up of three simple and easy parts of Vehicle Processing and a standard ready-packaged joint, with counterclockwise rotating to be out gas before the front gun body, clockwise turns to pass gas during work, and is simple to operate.

When counterclockwise rotating before the front gun body, front gun body moves forward, and under the pressure of gas, piston leaves the bellmouth of rear lance, and gas flows to front gun body by the air channel on the piston, from the ejection of front gun body gas port, is out gas again.

When clockwise direction before the front gun body rotated, front gun body and rear lance were pressed close to, and the cone on the piston matches with the bellmouth of rear lance, is pass gas.

Claims (1)

1. air pressure gun, it is characterized in that: air pressure gun includes front gun body, rear lance, piston, sealing ring and air inlet hydraulic quick coupler;

Be equipped with the little head end of piston and rear lance in the inner chamber of described front gun body;

Described piston one end is circular, an end be taper, its circular end is assemblied in the front gun body inner chamber by the rifle head, the inclined hole of taper one end and the little head end of rear lance is complementary;

Little head end of described rear lance and front gun body assemble by screw thread, and the fitting surface of its leading portion and front gun body is provided with sealing ring;

There is the passage of perforation at the center of described rear lance, has the venthole of the front end rifle head of air channel and front gun body to connect on the rear portion outer wall of described piston;

The passage rear end of described rear lance is connected to the air inlet hydraulic quick coupler.

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