CN212843174U

CN212843174U - Back-sitting vibration-damping shoulder rest device

Info

Publication number: CN212843174U
Application number: CN202021300866.1U
Authority: CN
Inventors: 李方文; 柴铭; 黄琳康; 王鑫; 王天祥; 吴钰; 汪小兵; 杨运晖; 柯强
Original assignee: Individual
Current assignee: Pla Army Infantry Academy
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-03-30
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses a recoil vibration reduction shoulder rest device, which comprises a shoulder rest body and a sliding seat, wherein the front end thread of the shoulder rest body is provided with a second lengthening block, the front end thread of the second lengthening block is provided with a first lengthening block, the rear end of the shoulder rest body is fixed with the sliding seat through a screw, the other end of the sliding seat is vertically provided with a dovetail groove, a sliding block is inserted in the dovetail groove, one side thread of the sliding seat is connected with a set screw, the rear end of the sliding block is connected with a limit screw through a screw, when in use, the shoulder rest body is arranged at the tail part of a gun, an arc groove at one side of a fixed plate is adjusted to the position of the shoulder of a composite operator through adjusting the height of the sliding block, the set screw is rotated to limit and fix the sliding block, one side of the sliding block is provided with the limit screw, the screw head of the limit screw slides in a sliding cavity of, the mounting plate and the fixing plate are damped by the spring.

Description

Back-sitting vibration-damping shoulder rest device

Technical Field

The utility model relates to a back seat damping technical field specifically is a back seat damping shoulder holds in palm device.

Background

The shoulder rest is one of the components of a conventional rifle, and its function is not very different, and its main function is to slow down or cancel the impact force generated by the burning of the powder in the barrel when the bullet is ejected. The recoil on the shoulder and the shoulder-to-shoulder rest forces are the reaction and reaction forces that should occur in pairs, but the recoil is derived from momentum and the shoulder rest can also maintain the gunner's balance when shooting in sports, if there is no shoulder or any other resistance. The advantage of shoulder rest makes the recoil that the shooting produced transmit on a straight line, and the moment of barrel jump or swing is almost zero, and the high initial velocity small-bore bullet that adopts the trajectory to stretch down in addition, makes the shooting precision improve to some extent than traditional rifle, and current shoulder rest, because of the model of gun is different, the shoulder rest length, the moment of upset are different, and is unable general, and moment is too big, can cause the recoil of gun to be difficult to balance, and current shoulder rest has the damping function very few, only can rely on the shoulder to cushion, and the harm to the human body is very big.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a backseat damping shoulder holds in palm device, first extension piece and second extension piece are installed to the front end of shoulder support body, the length of adjustable stock, stock body rear portion is provided with the sliding seat, it has the sliding block to peg graft on the sliding seat, the distance in adjustable shoulder contact site arc wall and barrel axle center is provided with spacing spiral silk between sliding seat and the mounting panel, the spring has been cup jointed on the spacing screw, the effect of damping has been played to the problem of proposition among the above-mentioned background art is solved.

In order to achieve the above object, the utility model provides a following technical scheme: a recoil vibration reduction shoulder rest device comprises a shoulder rest body and a sliding seat, wherein a second lengthening block is installed at the front end of the shoulder rest body in a threaded mode, a first lengthening block is installed at the front end of the second lengthening block in a threaded mode, the sliding seat is fixed at the rear end of the shoulder rest body through screws, a dovetail groove is vertically formed in the other end of the sliding seat, a sliding block is inserted in the dovetail groove, and a tightening screw is connected to one side of the sliding seat in a threaded mode;

the rear end of the sliding block is connected with a limit screw through threads, the screw head of the limit screw is inserted into the mounting plate, a stepped hole is formed in the screw head of the limit screw on the mounting plate, a spring is sleeved on the limit screw between the mounting plate and the sliding block, a fixing plate is arranged on one side, away from the sliding block, of the mounting plate, a sliding cavity is formed in one side of the fixing plate, the fixing plate is fixed to one side of the mounting plate through the fixing screw, and an arc-shaped groove is formed in the other side of the fixing plate.

Preferably, two groups of fastening screws are arranged and respectively fixed on the upper part and the lower part of the sliding seat, and the two groups of fastening screws penetrate through the dovetail groove.

Preferably, the diameter of the sliding cavity is equal to the diameter of the stepped hole of the mounting plate, and the sliding cavity and the stepped hole of the mounting plate are arranged in a coaxial relationship.

Preferably, the surface of the arc-shaped groove is provided with anti-skid lines. And a rubber pad is stuck on the surface of the arc-shaped groove.

Preferably, the first lengthening block and the second lengthening block are arranged in a coaxial relationship, and anti-skid grains are arranged on the surfaces of the first lengthening block and the second lengthening block.

Preferably, a fillet structure is arranged at the rear side of the fixing plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the front end of shoulder rest body is provided with first extension piece and second extension piece, can be according to the length of different firearms adjustment shoulder rest, and the rear end of shoulder rest body is provided with the sliding seat, and the inside dovetail that is provided with of sliding seat, sliding seat have a sliding block through dovetail sliding connection, through adjusting the sliding block, can change the moment between arc wall and the barrel, reduce the vibration that the firearms shot and take place;

2. the utility model discloses install spacing bolt between sliding block and the mounting panel, cup jointed the spring on the spacing bolt, be provided with the slip chamber between mounting panel and the fixed plate, linear motion is made in the slip chamber to the spiral shell head of spacing bolt, through the effect of spring, can alleviate the recoil of gun design, and the comfort level that increases operating personnel and use reduces the harm to the shoulder.

Drawings

FIG. 1 is a schematic side view of the present invention;

fig. 2 is a schematic rear view of the present invention;

fig. 3 is a schematic view of the top view structure of the present invention.

In the figure: 1. a shoulder rest body; 2. a first elongated block; 3. a second elongated block; 4. a sliding seat; 5. a dovetail groove; 6. tightening the screw; 7. a slider; 8. a limiting screw; 9. a spring; 10. mounting a plate; 11. a fixing plate; 12. fixing screws; 13. a sliding cavity; 14. an arc-shaped groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the recoil vibration reduction shoulder rest device comprises a shoulder rest body 1 and a sliding seat 4, wherein a second lengthened block 3 is installed at the front end of the shoulder rest body 1 through threads, a first lengthened block 2 is installed at the front end of the second lengthened block 3 through threads, the length of the shoulder rest can be adjusted according to different firearms, the first lengthened block 2 and the second lengthened block 3 are coaxially arranged, anti-slip grains are arranged on the surfaces of the first lengthened block 2 and the second lengthened block 3, the disassembly is convenient, the sliding seat 4 is fixed at the rear end of the shoulder rest body 1 through screws, a dovetail groove 5 is vertically formed in the other end of the sliding seat 4, a sliding block 7 is inserted in the dovetail groove 5, a tightening screw 6 is connected to one side of the sliding seat 4 through threads, the sliding block 7 can be fixed after the sliding block 7 is adjusted to a proper position, two sets of tightening screws 6 are arranged and are respectively fixed at the upper part and the lower part of the sliding seat 4, and the tightening screws 6 penetrate through the dovetail groove 5, the slide block 7 is prevented from being fixed firmly;

the rear end of the sliding block 7 is connected with a limit screw 8 through threads, the head of the limit screw 8 is inserted into the mounting plate 10 to limit the mounting plate 10, a stepped hole is formed in the mounting plate 10 at the head of the limit screw 8 to limit the head of the limit screw 8, the limit screw 8 between the mounting plate 10 and the sliding block 7 is sleeved with a spring 9 which can push against the mounting plate 10, a fixing plate 11 is arranged on one side of the mounting plate 10 away from the sliding block 7, a sliding cavity 13 is arranged on one side of the fixing plate 11 to enable the head of the limit screw 8 to linearly move in the sliding cavity 13, the diameter of the sliding cavity 13 is equal to the diameter of the stepped hole of the mounting plate 10, the sliding cavity 13 and the stepped hole of the mounting plate 10 are coaxially arranged to ensure the smooth movement of the head of the limit screw 8, the fixing plate 11 is fixed on one side of the mounting plate 10 through a fixing screw 12, an arc, the surface of the arc-shaped groove 14 is provided with anti-slip lines, the surface of the arc-shaped groove 14 is pasted with a rubber pad, the arc-shaped groove 14 is tightly attached to the shoulder of an operator, deviation cannot occur, and the rear side of the fixing plate 11 is provided with a fillet structure, so that the comfort level of operation of the operator is guaranteed.

The working principle is as follows: during the use, install shoulder rest body 1 in the firearms afterbody, through the height of adjustment sliding block 7, adjust the position of compound operating personnel shoulder with the arc wall 14 of fixed plate 11 one side, rotate holding screw 6 and carry out spacing fixed to sliding block 7, spacing screw 8 is installed to one side of sliding block 7, and the spiral shell head of spacing screw 8 slides in the slip chamber 13 of fixed plate 11, plays the cushioning effect to mounting panel 10 and fixed plate 11 through spring 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a backseat damping shoulder holds in palm device, holds in palm body (1) and sliding seat (4) including the shoulder, its characterized in that: a second lengthening block (3) is installed at the front end of the shoulder rest body (1) in a threaded mode, a first lengthening block (2) is installed at the front end of the second lengthening block (3) in a threaded mode, a sliding seat (4) is fixed to the rear end of the shoulder rest body (1) through screws, a dovetail groove (5) is vertically formed in the other end of the sliding seat (4), a sliding block (7) is inserted into the dovetail groove (5), and a tightening screw (6) is connected to one side of the sliding seat (4) in a threaded mode;

the rear end of sliding block (7) has stop screw (8) through threaded connection, the spiral shell head of stop screw (8) is pegged graft on mounting panel (10), the shoulder hole has been seted up in the spiral shell head department of stop screw (8) on mounting panel (10), stop screw (8) between mounting panel (10) and sliding block (7) have cup jointed spring (9), one side that sliding block (7) were kept away from in mounting panel (10) is provided with fixed plate (11), one side of fixed plate (11) is provided with sliding chamber (13), one side at mounting panel (10) is fixed through fixed screw (12) in fixed plate (11), arc wall (14) have been seted up to the opposite side of fixed plate (11).

2. A squat vibration reducing shoulder rest apparatus as claimed in claim 1, wherein: the two groups of fastening screws (6) are respectively fixed on the upper part and the lower part of the sliding seat (4), and the two groups of fastening screws (6) penetrate through the dovetail groove (5).

3. A squat vibration reducing shoulder rest apparatus as claimed in claim 1, wherein: the diameter of the sliding cavity (13) is equal to the diameter of the stepped hole of the mounting plate (10), and the sliding cavity (13) and the stepped hole of the mounting plate (10) are arranged in a coaxial relation.

4. A squat vibration reducing shoulder rest apparatus as claimed in claim 1, wherein: the surface of the arc-shaped groove (14) is provided with anti-slip lines, and a rubber pad is stuck to the surface of the arc-shaped groove (14).

5. A squat vibration reducing shoulder rest apparatus as claimed in claim 1, wherein: the anti-skid device is characterized in that the first lengthening block (2) and the second lengthening block (3) are arranged in a coaxial relation, and anti-skid grains are arranged on the surfaces of the first lengthening block (2) and the second lengthening block (3).

6. A squat vibration reducing shoulder rest apparatus as claimed in claim 1, wherein: the rear side of the fixing plate (11) is provided with a fillet structure.