Multifunctional gun stock capable of rotating and stretching out and drawing back and installation method of multifunctional gun stock

Abstract

The invention discloses a multifunctional gun stock capable of rotating and stretching and a mounting method thereof. The multifunctional gun stock can adapt to different body types and combat environments. Comprising a telescopic support body, a fixed support body, a telescopic rod and a buffer, a mounting notch is formed in the upper end of the telescopic support body, the rear end of the telescopic rod is mounted on the mounting notch, a matching rod is arranged at the front end of the telescopic rod, a plurality of clamping grooves are uniformly formed in the side wall of the matching rod, a guide rod is arranged at the lower part of the telescopic support body, and a locking nut is matched on the guide rod; the rear end of the buffer is installed on the fixed supporting body and the telescopic supporting body, the front end of the buffer is used for being fixedly connected with a weapon cartridge receiver, the buffer can rotate, a sliding groove is formed in the fixed supporting body, the matching rod is inserted into the sliding groove, the matching rod at the front end of the telescopic rod is sleeved with a lock catch ring, a limiting seat is arranged in the lock catch ring, and one end of the limiting seat is attached to the side wall of the matching rod. The end of the limiting base is in sliding fit with the inner wall of the lock catch ring, the other end of the limiting base is sleeved with a spring, and one end of the spring makes contact with the inner wall of one side of the lock catch ring.

Description

Technical Field

[0001] This invention relates to the field of individual weapon technology, and in particular to a multi-functional gun stock capable of rotation and extension, and its mounting method. Background Technology

[0002] The stock is an essential component of individual firearms, located at the rear of the weapon. Its primary functions include cushioning recoil, stabilizing the weapon, and adjusting aiming posture. The stock's multiple functions can improve the comfort of firing, effectively enhancing shooting stability and accuracy. This is especially important when used in large-caliber sniper rifles.

[0003] Sniper rifle combat requires constant high concentration, and the recoil of large-caliber sniper rifles is significant. Maintaining the same firing posture for extended periods can easily lead to fatigue. Shooting postures are often prone, standing, or semi-squatting, and the function of the buttstock varies depending on the posture. Only by adjusting the buttstock length, cheek rest, and support height can a suitable position be found to ensure shooting comfort and aiming stability. Based on the shape of the human chest muscles, when the buttstock is pressed against the chest muscles during firing, rotating the buttstock clockwise or counterclockwise by approximately 15°, depending on the left or right firing position, represents the optimal comfortable shooting position. This ensures the buttstock is fully in contact with the muscles, reducing muscle fatigue and injury during prolonged or high-volume firing operations.

[0004] For large-caliber individual sniper weapons, the recoil is significant, making them difficult to control. Therefore, it is necessary to invent and design a multi-functional stock that allows for quick adjustment and locking of the stock length, cheek rest and shoulder stock height, and radial rotation of the stock angle to address the issues of improving firing speed and aiming stability, and reducing firing fatigue. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-functional gunstock that can rotate and extend, as well as its installation method, which can adapt to different body sizes and combat environments.

[0006] The objective of this invention is achieved as follows: A multi-functional gunstock capable of rotation and extension includes a telescopic stock, a fixed stock, a telescopic rod, and a buffer; The upper end of the telescopic support body is provided with an L-shaped installation notch, and the vertical wall of the installation notch is provided with a buffer clearance hole. The rear end of the telescopic rod is horizontally installed on the flat wall of the installation notch by a threaded fastener. The front end of the telescopic rod is a mating rod, and a number of slots are evenly provided on one side wall of the mating rod. The lower part of the telescopic support body is provided with a guide rod, which is a threaded rod, and a locking nut is threaded on the guide rod. The lower part of the fixed support body is provided with a clearance hole, into which the guide rod is inserted. The locking nut is used to fit the lower part of the fixed support body to assist in bearing recoil force. The upper part of the fixed support body is provided with a longitudinally arranged mounting step hole. The buffer is cylindrical, and a positioning step is provided on the outer circumference of the buffer. The rear end of the buffer passes through the mounting step hole and is axially positioned by the mounting step hole and the positioning step. The rear end of the buffer is axially locked by a nut. The front end of the buffer is used to connect and fix to the weapon receiver. The buffer can rotate, allowing the fixed support body to rotate relative to the weapon receiver. The fixed support body is provided with a longitudinally arranged sliding groove located below the buffer. The mating rod at the front end of the telescopic rod is inserted into the sliding groove to form a... The telescopic rod has a rectangular cross-section at its front end. A locking ring with a rectangular frame structure is fitted onto the front end of the telescopic rod. A limiting seat is provided laterally inside the locking ring. One end of the limiting seat fits against the side wall of the telescopic rod and slides against the inner wall of the locking ring. A spring is fitted onto the other end of the limiting seat. One end of the spring contacts the inner wall of one side of the locking ring. Under the elastic force of the spring, one side of the locking ring is engaged in a slot on the telescopic rod for positioning. The fixed support body has a mounting groove corresponding to the locking ring. The fixed support body is axially positioned in the mounting groove, and the locking ring can slide laterally within the mounting groove. By pressing the side of the locking ring corresponding to the spring, the other side of the locking ring can be disengaged from the corresponding slot.

[0007] Preferably, the buffer is a spring buffer, the two ends of which can be adjusted relative to the circumferential angle, and the normal circumferential positioning between the two ends of the spring buffer is achieved by the frictional force formed by the spring in the buffer.

[0008] Preferably, the fixed stock has an angular rotation clearance, which is used to cooperate with the receiver of the firearm and limit the extreme position of the fixed stock's rotation relative to the receiver.

[0009] Preferably, the end of the telescopic rod is provided with a limiting boss, and the limiting seat is limited in front and back position by the locking ring and the fixed support. The limiting boss cooperates with the limiting seat to limit the extreme position of the telescopic rod extension.

[0010] A method for installing a multi-functional gunstock capable of rotation and telescopic movement: the rear end of the buffer passes through a mounting step hole, and the rear end of the buffer is axially locked by a nut; a telescopic rod is fixed to the telescopic stock body using screws; a locking nut is screwed into the guide rod of the telescopic stock body; a limiting seat and a spring are installed into a locking ring, and then the locking ring is placed vertically upward into the mounting groove of the fixed stock body; the end of the telescopic rod is used to push the limiting seat, and when the limiting seat is pushed open with sufficient space, the telescopic rod is aligned with the sliding groove, the guide rod is aligned with the clearance hole, and the telescopic rod and the guide rod are inserted simultaneously; the buffer is connected to the receiver of the firearm. Adjustment method: Press down the locking ring laterally, adjust the telescopic stock within the travel range of the telescopic rod according to the slot spacing, and after determining the adjustment position, release the adjusting locking ring. Under the action of the spring, the locking ring returns to the position and locks the adjustment position. Tighten the locking nut on the guide rod so that the locking nut fits against and fixes the stock. The stock angle is adjusted through the buffer.

[0011] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: This invention features recoil cushioning, adjustable support body, shoulder rest and cheek rest height, and especially rapid adjustment functions for support body extension and rotation. This invention improves the ergonomics and shooting stability of individual weapons. Through the support body's extension and rotation functions, the weapon operator can effectively achieve a comfortable operating posture in different combat environments, facilitating prolonged combat in a fixed posture. The base of the support body fully conforms to the chest muscles, increasing the contact area and reducing muscle fatigue. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a multi-functional gunstock structure; Figure 2 This is a cross-sectional diagram of a multi-functional gunstock; Figure 3 This is a schematic diagram of a multi-functional gunstock assembly; Figure 4 This is a diagram illustrating the installation of a multi-functional gunstock; Figure 5 This is a schematic diagram of the telescopic support structure; Figure 6 This is a schematic diagram of the fixed support structure; Figure 7 This is a schematic diagram of the telescopic rod structure; Figure 8 This is a schematic diagram of the locking ring structure; Figure 9 This is a schematic diagram of the limiting seat structure; Figure 10 This is a schematic diagram of a spring structure; Figure 11 This is a schematic diagram of the buffer structure; Figure 12 This is a schematic diagram of the locking ring mechanism.

[0013] Figure 13 This is a schematic diagram of the structure that limits the extension of the telescopic rod.

[0014] Figure Labels In the attached diagram, 1-telescopic support, 2-fixed support, 3-telescopic rod, 4-locking ring, 5-limiting seat, 6-spring, 8-buffer, 11-guide rod, 12-locking nut, A-angle rotation clearance, B-slot. Detailed Implementation

[0015] A multi-functional gunstock capable of rotation and extension includes a telescopic stock 1, a fixed stock 2, a telescopic rod 3, and a buffer 8. The upper end of the telescopic stock 1 has an L-shaped mounting notch, and the vertical wall of the mounting notch has a buffer clearance hole. The rear end of the telescopic rod 3 is horizontally mounted on the flat wall of the mounting notch via a threaded fastener. The front end of the telescopic rod 3 is a mating rod, and a plurality of slots B are evenly distributed on one side wall of the mating rod. A guide rod 11 is horizontally mounted at the lower part of the telescopic stock 1. The guide rod 11 is a threaded rod, and a threaded rod is threaded onto the guide rod 11. The fixed support 2 is fitted with a locking nut 12. The lower part of the fixed support 2 has a clearance hole into which the guide rod 11 is inserted without contact. The locking nut 12 is used to fit against the lower part of the fixed support 2 to assist in bearing recoil force. The upper part of the fixed support 2 has a longitudinally arranged mounting step hole. The buffer 8 is cylindrical, and a positioning step is provided on its outer circumference. The rear end of the buffer 8 passes through the mounting step hole and, through the engagement of the mounting step hole and the positioning step, forms axial positioning. The rear end of the buffer 8 is axially locked by a nut. The front end of the buffer 8 is used to connect and fix it to the weapon receiver. The buffer 8 can rotate, allowing the fixed support 2 to rotate relative to the weapon receiver. The fixed support 2 has a longitudinal groove located below the buffer 8. The mating rod at the front end of the telescopic rod 3 is inserted into the groove, forming a sliding fit. The mating rod at the front end of the telescopic rod 3 has a rectangular cross-section. A locking ring 4 with a rectangular frame structure is fitted on the mating rod at the front end of the telescopic rod 3. A limiting seat 5 is provided transversely inside the locking ring 4. One end of the limiting seat 5 is attached to the side wall of the mating rod, limiting the movement. One end of the seat 5 slides against the inner wall of the locking ring 4. The other end of the limiting seat 5 is fitted with a spring 6. One end of the spring 6 contacts the inner wall of one side of the locking ring 4. Under the elastic force of the spring 6, one side of the locking ring 4 is engaged in a slot B on the mating rod for positioning. The fixed support 2 is provided with a mounting groove corresponding to the locking ring 4. The fixed support 2 is axially positioned in the mounting groove, and the locking ring 4 can slide laterally in the mounting groove. By pressing the side of the locking ring 4 corresponding to the spring, the other side of the locking ring 4 can be disengaged from the corresponding slot B.

[0016] In this embodiment, the limiting seat 5 is T-shaped, the locking ring 4 is provided with a stepped groove, and the large end of the limiting seat 5 is provided with a stepped protrusion. The stepped protrusion and the stepped groove slide together to form a lateral positioning and limit the sliding range of the limiting seat 5.

[0017] The buffer 8 is a spring buffer. The spring buffer can rotate and achieve normal positioning through the friction formed by the spring. Under the action of external force, it can overcome friction to achieve rotation.

[0018] The fixed stock 2 is provided with an angular rotation clearance A, which is used to cooperate with the receiver of the firearm and limit the extreme position of the fixed stock 2 relative to the receiver (see...). Figure 4 ).

[0019] The end of the telescopic rod 3 is provided with a limiting boss. The limiting seat 5 is limited in its front-to-back position by the locking ring 4 and the fixed support 2. The limiting boss cooperates with the limiting seat 5 to limit the extreme position of the telescopic rod 3 extension. (See...) Figure 13 ) Specifically: The invention mainly utilizes a buffer to achieve overall rotation of the stock, and a telescopic mechanism formed by a telescopic rod (the telescopic mechanism consists of the front end face of the telescopic rod slot, a locking ring, a guide rod thread, and a nut that bears axial force, has a large force-bearing capacity, and reliable limiting) to achieve stock extension and retraction.

[0020] The buffer is fixedly connected to the fixed stock and weapon receiver. The internal structure of the buffer is cylindrical and allows for free radial rotation. Simultaneously, the buffer spring has a large force, ensuring the multi-functional stock will not rotate freely without external force (normal positioning is achieved through friction). The fixed stock is designed with an angular rotation allowance A, limiting the stock's overtravel rotation.

[0021] The telescopic rod is designed with rectangular toothed grooves for adjusting the length of the telescopic support. The end has a limiting boss to limit the position when the support is fully extended. The other end is secured to the telescopic support with a screw. The telescopic rod and telescopic support guide rod are inserted into the fixed support body. The telescopic support guide rod is screwed into a nut to assist in absorbing the recoil after the support length is adjusted.

[0022] The locking ring fits onto the telescopic rod and has a built-in spring. When pressed, the other end can disengage from the telescopic rod's slot, allowing the telescopic rod to extend and retract freely horizontally. When released, the locking ring sinks into the slot under the spring force, restricting the telescopic rod's movement. The front and rear sides of the locking ring are constrained by the fixed support. When the locking ring is engaged in the telescopic rod's slot, the telescopic support will not disengage from the fixed support when the weapon moves forward or recoils.

[0023] The limiting seat is located inside the locking ring. There is a spring outside the seat rod of the limiting seat. Driven by the reaction spring force of the locking ring, the plane of the limiting seat fits with the telescopic rod. The longitudinal direction is constrained by the mounting groove of the locking ring of the fixed support. The limiting seat and the limiting boss of the telescopic rod cooperate to effectively prevent the telescopic rod from detaching from the fixed support.

[0024] The multi-functional stock also features a cheek rest, a rubber base, adjustable stock height, and cushioning.

[0025] Installation of this invention: 1. Insert the cylindrical buffer 8 into the fixed support 2, using a nut ( Figure 2 The left end of the buffer 8 is fixed.

[0026] 2. Use screws to fix the telescopic rod 3 to the telescopic support 1; tighten the lock nut 12 into the guide rod 11 of the telescopic support 1.

[0027] 3. The limit seat 5 and the spring 6 are installed into the locking ring 4 and placed vertically upward into the mounting groove of the fixed support 2.

[0028] 4. Push the end of the telescopic rod 3 against the limiting seat 5. When there is enough space, directly align the telescopic rod 3 and the guide rod 11 and insert them into the fixed support 2.

[0029] 5. Secure the multi-functional stock into the receiver.

[0030] Adjustment of this invention: The shooter presses down the locking ring on the right side, and the telescopic stock can be adjusted within its travel range according to the slot spacing. Once a suitable position is determined, the locking ring is released to lock it in place. During combat, the guide rod nut is tightened to secure the stock. The stock can be rotated directly left or right in a circumferential direction.

[0031] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A multi-functional gunstock capable of rotation and extension, characterized in that: Includes telescopic support, fixed support, telescopic rod, and buffer; The upper end of the telescopic support body is provided with an L-shaped installation notch, and the vertical wall of the installation notch is provided with a buffer clearance hole. The rear end of the telescopic rod is horizontally installed on the flat wall of the installation notch by a threaded fastener. The front end of the telescopic rod is a mating rod, and a number of slots are evenly provided on one side wall of the mating rod. The lower part of the telescopic support body is provided with a guide rod, which is a threaded rod, and a locking nut is threaded on the guide rod. The lower part of the fixed support body is provided with a clearance hole, into which the guide rod is inserted. The locking nut is used to fit the lower part of the fixed support body to assist in bearing recoil force. The upper part of the fixed support body is provided with a longitudinally arranged mounting step hole. The buffer is cylindrical, and a positioning step is provided on the outer circumference of the buffer. The rear end of the buffer passes through the mounting step hole and is axially positioned by the mounting step hole and the positioning step. The rear end of the buffer is axially locked by a nut. The front end of the buffer is used to connect and fix to the weapon receiver. The buffer can rotate, allowing the fixed support body to rotate relative to the weapon receiver. The fixed support body is provided with a longitudinally arranged sliding groove located below the buffer. The mating rod at the front end of the telescopic rod is inserted into the sliding groove to form a... The telescopic rod has a rectangular cross-section at its front end. A locking ring with a rectangular frame structure is fitted onto the front end of the telescopic rod. A limiting seat is provided laterally inside the locking ring. One end of the limiting seat fits against the side wall of the telescopic rod and slides against the inner wall of the locking ring. A spring is fitted onto the other end of the limiting seat. One end of the spring contacts the inner wall of one side of the locking ring. Under the elastic force of the spring, one side of the locking ring is engaged in a slot on the telescopic rod for positioning. The fixed support body has a mounting groove corresponding to the locking ring. The fixed support body is axially positioned in the mounting groove, and the locking ring can slide laterally within the mounting groove. By pressing the side of the locking ring corresponding to the spring, the other side of the locking ring can be disengaged from the corresponding slot.

2. The multi-functional gunstock capable of rotation and extension according to claim 1 and its installation method, characterized in that: The buffer is a spring buffer, and the two ends of the spring buffer can be adjusted relative to the circumferential angle. The normal circumferential positioning between the two ends of the spring buffer is achieved by the frictional force formed by the spring in the buffer.

3. A multi-functional gunstock capable of rotation and extension according to claim 1 or 2 and its mounting method, characterized in that: The fixed stock has an angular rotation clearance, which is used to cooperate with the receiver of the firearm and limit the extreme position of the fixed stock relative to the receiver.

4. The multi-functional gunstock capable of rotation and retraction and its installation method according to claim 1, characterized in that: The end of the telescopic rod is provided with a limiting boss. The limiting seat is limited in front and back position by the locking ring and the fixed support. The limiting boss cooperates with the limiting seat to limit the extreme position of the telescopic rod extension.

5. A method for installing the rotatable and retractable multi-functional gunstock as described in claim 1, characterized in that: The rear end of the buffer passes through the mounting step hole, and the rear end of the buffer is axially locked by a nut; the telescopic rod is fixed to the telescopic support body with screws; the locking nut is screwed into the guide rod of the telescopic support body; the limit seat and spring are installed into the locking ring, and then the locking ring is placed vertically upward into the mounting groove of the fixed support body; the end of the telescopic rod pushes the limit seat, and when the limit seat is pushed open with enough space, the telescopic rod is aligned with the slide groove, the guide rod is aligned with the clearance hole, and the telescopic rod and guide rod are inserted at the same time; Connect the buffer to the receiver of the firearm; Adjustment method: Press down the locking ring laterally, adjust the telescopic stock within the travel range of the telescopic rod according to the slot spacing, and after determining the adjustment position, release the adjusting locking ring. Under the action of the spring, the locking ring returns to the position and locks the adjustment position. Tighten the locking nut on the guide rod so that the locking nut fits against and fixes the stock. The stock angle is adjusted through the buffer.

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