CN202903006U

CN202903006U - Adjustable gun trigger mechanism

Info

Publication number: CN202903006U
Application number: CN 201220578108
Authority: CN
Inventors: 肖继里; 何伟; 梁青; 林享彬
Original assignee: Sichuan Huaqing Machinery Co Ltd
Current assignee: Sichuan Huaqing Machinery Co Ltd
Priority date: 2012-11-06
Filing date: 2012-11-06
Publication date: 2013-04-24
Anticipated expiration: 2022-11-06

Abstract

The utility model relates to an adjustable gun trigger mechanism which comprises a launch base, a trigger, an L-shaped sear ejector bar. The launch base, the trigger and the sear ejector bar are connected through a trigger shaft. A trigger spring is disposed between the side wall of the launch base and the upper portion of the trigger. The sear ejector bar is arranged behind the trigger. The head of a sear is held by an upper free end of the sear ejector bar. The sear is connected with the launch base through a transverse slide at the tail of the sear and a pin disposed on the launch base. An ejector bar spring is disposed between the lower portion of the sear ejector bar and an inner positioning step of the launch base. A sear spring is disposed between the middle of the sear and the inner positioning step of the launch base. The adjustable gun trigger mechanism further comprises a trigger spring force adjusting screw which is inserted in from the outside of the launch base. An ejector ring is sleeved at the top end of the trigger spring force adjusting screw. One end of the trigger spring is abutted to the trigger. The other end of the trigger spring is sleeved outside the top end of the trigger spring force adjusting screw and is abutted to the ejector ring. The adjustable gun trigger mechanism guarantees increase of full gun system precision and meets the requirements of different shooters.

Description

Adjustable trigger mechanism of small arms

Technical field

The utility model relates to the firearms technical field, specifically, relates to a kind of adjustable trigger mechanism of small arms.

Background technology

Along with the in recent years fast development of miscellaneous high accuracy Snipe weapon, the functional and man-machine work efficiency of trigger mechanism is had higher requirement.Trigger mechanism is pulled the trigger as the control firing lock or is and waits the mechanism sent out, when design except will satisfying its reliability and security, important requirement when trigger pull and trigger travel also are the trigger mechanism design, the size that will guarantee pulloff power in the design process will suit, with fire accuracy and the use safety that guarantees weapon; The stroke of pulloff also will suit, make shooter grasp best shooting opportunity, but most of trigger mechanisms were cured to the two in the indication range in design trigger pull and trigger travel process in the past, if find in the use procedure that size is not suitable for can't adjusting, only have by redesigning or adjust the means such as each spring power to meet the demands, the result is time and effort consuming often.

The utility model just is being based on above-mentioned deficiency of the prior art and is setting out, break above-mentioned conventional restriction, by rationally setting up each adjustment screw of layout and regulating spring, control contacts distance and trigger pull transfer function with the sear push rod, sear push rod adjustment screw has control push rod spring precompression concurrently and push rod spring positioning action, trigger spring power adjustment screw have control trigger spring precompression concurrently and trigger spring positioning action, push rod spring and trigger spring have the control trigger pull concurrently and make the mechanism element reset response so that the trigger travel adjustment screw has concurrently.

The utility model content

The purpose of this utility model is to adapt to the reality needs, and a kind of adjustable trigger mechanism of small arms is provided.

In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:

A kind of adjustable trigger mechanism of small arms, comprise the emitter pedestal, trigger, L shaped sear push rod, described emitter pedestal, trigger and sear push rod are connected by the trigger axle, be provided with trigger spring between the sidewall of emitter pedestal and the trigger top, described sear push rod is arranged at the trigger rear, the top free end of described sear push rod withstands the head of sear, the horizontal concrete chute of sear by being arranged at its afterbody is connected with the emitter pedestal with bearing pin on being arranged at the emitter pedestal, be provided with the push rod spring between the positioning table in described sear push rod bottom and the emitter pedestal, be provided with the sear spring between the positioning table in the middle part of sear and the emitter pedestal, also be provided with trigger spring power adjustment screw, described trigger spring power adjustment screw is from the outside insert of emitter pedestal, the top of described trigger spring power adjustment screw is set with apical ring, one end of described trigger spring withstands trigger, and the other end is sleeved on the tip exterior of trigger spring power adjustment screw and withstands apical ring.

Also comprise sear push rod adjustment screw, described sear push rod adjustment screw is inserted and is passed through to upper surface from sear push rod bottom lower surface, the tip exterior of described sear push rod adjustment screw is set with apical ring, described push rod spring one end withstands emitter pedestal position decided at the higher level but not officially announced platform, and the other end is sleeved on the tip exterior of push rod adjustment screw and withstands apical ring.

Also comprise the trigger travel adjustment screw, described trigger travel adjustment screw screws in the rear sear push rod bottom that screws out from the inboard and aim at from the outside of trigger.

The beneficial effects of the utility model are:

Under the condition that guarantees the trigger mechanism flexibility and reliability, realized simultaneously the adjustable of trigger mechanism trigger pull and trigger travel, advantageously guaranteed heightening of full gun system precision, also satisfied different shooters' demand simultaneously.

Description of drawings

Fig. 1 is structure principle chart of the present utility model;

Fig. 2 is the structural representation after trigger is depressed among Fig. 1;

Fig. 3 is that trigger continues to press down the structural representation that rear sear is freed among Fig. 2.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified:

Embodiment: referring to Fig. 1---Fig. 3.

A kind of adjustable trigger mechanism of small arms, comprise emitter pedestal 1, trigger 2, L shaped sear push rod 4, described emitter pedestal 1, trigger 2 and sear push rod 4 are connected by trigger axle 11, be provided with trigger spring 10 between the sidewall of emitter pedestal 1 and trigger 2 tops, described sear push rod 4 is arranged at trigger 2 rears, the top free end of described sear push rod 4 withstands the head of sear 7, the horizontal concrete chute of sear 7 by being arranged at its afterbody is connected with emitter pedestal 1 with bearing pin 12 on being arranged at the emitter pedestal, bearing pin 12 slides in chute, be provided with push rod spring 6 between the positioning table in described sear push rod 4 bottoms and the emitter pedestal 1, be provided with sear spring 8 between the positioning table in the middle part of sear 7 and the emitter pedestal 1, also be provided with trigger spring power adjustment screw 9, described trigger spring power adjustment screw 9 is from the outside insert of emitter pedestal 1, the top of described trigger spring power adjustment screw 9 is set with apical ring, one end of described trigger spring 10 withstands trigger 2, and the other end is sleeved on the tip exterior of trigger spring power adjustment screw 9 and withstands apical ring.

Also comprise sear push rod adjustment screw 5, described sear push rod adjustment screw 5 is inserted and is passed through to upper surface from sear push rod 4 bottom lower surfaces, the tip exterior of described sear push rod adjustment screw 5 is set with apical ring, described push rod spring 6 one ends withstand emitter pedestal 1 interior positioning table, and the other end is sleeved on the tip exterior of push rod adjustment screw 5 and withstands apical ring.

Also comprise trigger travel adjustment screw 3, described trigger travel adjustment screw 3 screws in rear sear push rod 4 bottoms that screw out from the inboard and aim at from the outside of trigger 2.

Work as External Force Acting, when pulling trigger 2, trigger spring 10 is compressed, meanwhile trigger 2 rotates counterclockwise centered by trigger axle 11 jointly with trigger travel adjustment screw 3, rotate when contact with sear push rod 4 bottoms to trigger travel adjustment screw 3, external force overcome push rod spring 6 and trigger spring 10 with joint efforts, driving sear push rod 4 together is rotated counterclockwise around trigger axle 11, at this moment, hammer is freed and discharged to sear 7, as shown in Figure 3.

After external force is removed, under trigger spring 10, the 6 elastic force effects of push rod spring, trigger 2 and sear push rod 4 all have the trend that clockwise rotates around trigger axle 11, the upper end of sear push rod 4 promotes simultaneously sear 7 and slides to the right along chute, while sear spring 8 is top sear 7 upwards, so that whole mechanism returns to again state shown in Figure 1.

Assembling process of the present utility model:

Trigger travel adjustment screw 3 is screwed in the trigger 2, and trigger spring power adjustment screw 9 screws in emitter pedestal 1 and adds the cover apical ring, and sear push rod adjustment screw 5 screws in sear push rod 4 bottoms and adds the cover apical ring; Emitter pedestal 1, trigger 2 and sear push rod 4 are connected by trigger axle 11, sear 7 is connected with emitter pedestal 1 by bearing pin 12 thereupon; To pack between trigger spring power adjustment screw 9 and the trigger 2 after trigger spring 10 compressions, will pack between sear push rod adjustment screw 5 and the emitter pedestal 1 interior positioning table after 6 compressions of push rod spring, will pack between sear 7 and the emitter pedestal 1 interior positioning table after 8 compressions of sear spring at last.

Before the external force action, can regulate push rod spring 6 and trigger spring 10 precompressions by regulating sear push rod adjustment screw 5 with trigger spring power adjustment screw 9, reach the adjustable purpose of control trigger pull size; Can increase or shorten adjusting trigger travel adjustment screw 3 and sear push rod 4 operating distances by regulating trigger travel adjustment screw 3, reach the adjustable purpose of trigger travel size.

What embodiment of the present utility model announced is preferred embodiment; but be not limited to this; those of ordinary skill in the art; very easily according to above-described embodiment; understand spirit of the present utility model; and make different amplifications and variation, but only otherwise break away from spirit of the present utility model, all in protection domain of the present utility model.

Claims

1. adjustable trigger mechanism of small arms, comprise the emitter pedestal, trigger, L shaped sear push rod, described emitter pedestal, trigger and sear push rod are connected by the trigger axle, be provided with trigger spring between the sidewall of emitter pedestal and the trigger top, described sear push rod is arranged at the trigger rear, the top free end of described sear push rod withstands the head of sear, the horizontal concrete chute of sear by being arranged at its afterbody is connected with the emitter pedestal with bearing pin on being arranged at the emitter pedestal, be provided with the push rod spring between the positioning table in described sear push rod bottom and the emitter pedestal, be provided with the sear spring between the positioning table in the middle part of sear and the emitter pedestal, it is characterized in that: also be provided with trigger spring power adjustment screw, described trigger spring power adjustment screw is from the outside insert of emitter pedestal, the top of described trigger spring power adjustment screw is set with apical ring, one end of described trigger spring withstands trigger, and the other end is sleeved on the tip exterior of trigger spring power adjustment screw and withstands apical ring.

2. adjustable trigger mechanism of small arms according to claim 1, it is characterized in that: also comprise sear push rod adjustment screw, described sear push rod adjustment screw is inserted and is passed through to upper surface from sear push rod bottom lower surface, the tip exterior of described sear push rod adjustment screw is set with apical ring, described push rod spring one end withstands emitter pedestal position decided at the higher level but not officially announced platform, and the other end is sleeved on the tip exterior of push rod adjustment screw and withstands apical ring.

3. adjustable trigger mechanism of small arms according to claim 1 is characterized in that: also comprise the trigger travel adjustment screw, screw out and aim at sear push rod bottom after described trigger travel adjustment screw screws in from the outside of trigger from the inboard.