CN2167349Y

CN2167349Y - Mechanism of spring operated for air gun

Info

Publication number: CN2167349Y
Application number: CN 93223719
Authority: CN
Inventors: 梁秉义; 孟昭强
Original assignee: BEIJING AIR GUN FACTORY
Current assignee: BEIJING AIR GUN FACTORY
Priority date: 1993-09-10
Filing date: 1993-09-10
Publication date: 1994-06-01
Anticipated expiration: 2003-09-10

Abstract

The utility model relates to a hooking mechanism for an air gun, which is composed of a piston, a sear, a sear pin, a torsion spring of the sear, a mantle, a trigger, a trigger pin, a trigger spring, a trigger shell, a pin of the trigger shell and a spring of the trigger shell, wherein, the piston is a hollow cylinder and is installed in a protective tube, the wall at one end of the piston is provided with a square hole, a projected tip of the sear can enter the square hole to finish the hooking action. The sear is in pin connection in the mantle through a male pin, and the torsion spring can cause the sear to restore automatically. During hooking, the tip on the sear makes contact with a breach on the trigger so that the sear can not revolve automatically. During firing, the trigger is pulled so that the tip of the sear is separated from the breach of the trigger, and the sear revolves automatically owing to the action of the torsion spring so that the piston is separated from the sear to finish the firing action. The hooking mechanism with the adoption of the utility model has the advantages of less abrasion of the contact face during hooking, no need of special processing for component parts, process reduction and cost reduction.

Description

Mechanism of spring operated for air gun

The utility model relates to the on-hook machinery of air gun, belongs to the structure of air gun.

Air gun commonly used at present, on-hook is to pull pressure rod with hand, making pressure rod drive pull bar moves to rifle rear (gun stock direction), pull bar drives the gas storage letter and piston moves to the rifle rear, and the spring in the compression piston, to store potential energy, when piston (piston hook) arrives the hook position, just finish the on-hook action, can prepare percussion.This on-hook mechanism is in on-hook and percussion process, and hook (or piston) produces sliding friction with the contact-making surface of trigger, and surperficial abrasion is more serious, has increased operation so above-mentioned part need carry out specially treated (as ooze charcoal, quench etc.), has improved product cost.

Less, the easily manufactured air gun on-hook mechanism of abrasion when the purpose of this utility model provides a kind of use.

The utility model air gun on-hook mechanism is made up of piston, sear, sear pin, sear torsion spring, mantle, trigger, trigger, trigger spring, trigger shell, trigger shell pin, trigger shell spring, said piston is a hollow cylinder, be installed in the pillar, piston one end is uncovered, at Qi Bishang a square hole is arranged, the protrusion tip of sear can enter this square hole, to finish the on-hook action.Said mantle is a cylinder, is placed in the pillar.Said sear is a disk shape structure, and is jagged along circumference.This sear in mantle, has the sear torsion spring to be in contact with it with sear pin pin joint simultaneously, and sear can be automatically reset after rotation.Said trigger is for pulling the shape structure, and the upper end of trigger uses the trigger pin joint in mantle, and links to each other with the trigger spring, so that can automatically reset after the trigger rotation.There is trigger shell spring the lower end of trigger with trigger shell pin and trigger shell pin joint between trigger and the trigger shell.The pre-crack effect of trigger shell spring can remind shooter to note when percussion.

Illustrate that accompanying drawing is as follows:

Fig. 1 is for installing the air gun cutaway view (hook state) of the utility model on-hook mechanism

The structure and the course of work of accompanying drawings the utility model on-hook mechanism are as follows:

When air gun is wanted on-hook, with pulling pressure rod, pressure rod drives the drive gas storage letter (14) of pull bar (not shown in Fig. 1) pull bar and piston (1) moves to the gun stock direction in pillar (2), the spring (3) that is contained in simultaneously in the piston (1) is compressed, when an end of piston and sear (4) when contacting, promoting sear (4) is that rotate in the center of circle with sear pin (5), piston (1) continues to move to the gun stock direction, enter square hole on piston (1) wall until the protrusion tip on the sear (4), another protrusion tip of sear this moment (4) enters the breach on the trigger (6), this square hole blocks sear and rotates round about, has just finished the on-hook action.On mantle (8), trigger (6) contacts with plate machine spring (9) trigger (6) by trigger (7) pin joint.Breach on the assurance machine (6) contacts with the protrusion of sear (4) is most advanced and sophisticated, keeps hook state.One end of trigger (4) has trigger shell spring (12) by trigger shell pin (10) and trigger shell (11) pin-connect between trigger (6) and the trigger shell (11), and this trigger shell spring can remind shooter to note when percussion.In the time will pulling the trigger, with hand cocking shell (11), trigger shell (11) drives trigger (6) and rotates, the breach of trigger this moment (6) and the protrusion of sear (4) are most advanced and sophisticated to break away from, sear (4) is promptly under the effect of torsion spring (13), rotate to illustrated clockwise direction, make the square hole of piston (1) break away from the protrusion tip of sear (4), therefore piston (1) is under the effect of spring (3), move rapidly to the gun barrel direction, air in the compression gas receiver (14) is got bullet, finishes fire.

Adopt on-hook of the present utility model mechanism, since between the most advanced and sophisticated square hole with piston (1) of the protrusion of sear (4) when on-hook friction condition better (not having sliding friction) so this contact-making surface abrasion is not serious, part need not done specially treated in addition, and technology is simple, long service life.

Claims

1, a kind of air gun on-hook mechanism, it is characterized in that this on-hook mechanism is by piston, sear, the sear pin, the sear torsion spring, mantle, trigger, trigger, the trigger spring, the trigger shell, trigger shell pin, trigger shell spring is formed, said piston is a hollow cylinder, be installed in the pillar, one end of piston is uncovered, at Qi Bishang one square hole is arranged, said mantle is a cylinder, be installed in the pillar, said sear is a disk shape structure, and is jagged around it, this sear with sear pin pin joint in mantle, there is the sear torsion spring to be in contact with it simultaneously, said trigger is a platy structure, and the upper end of trigger uses the trigger pin joint in mantle, and links to each other with the trigger spring, there is trigger shell spring the lower end of trigger with trigger and trigger shell pin joint between trigger and the trigger shell.