Mechanism for quickly adjusting and locking shoulder rest and mounting method thereof

Abstract

The invention discloses a mechanism for quickly adjusting and locking a shoulder rest and a mounting method thereof, the mechanism comprises a rest body and the shoulder rest, a T-shaped guide rail is vertically arranged on the rest body, a T-shaped guide groove is vertically formed in the shoulder rest, the T-shaped guide rail is in sliding fit in the T-shaped guide groove, a step-shaped limiting shaft mounting hole is formed in the rest body in the longitudinal direction, and the limiting shaft mounting hole is in sliding fit with the T-shaped guide groove. A limiting shaft is in sliding fit in the small-diameter section of the limiting shaft mounting hole, a limiting spring is arranged in the large-diameter section of the limiting shaft mounting hole and sleeves the limiting shaft, an adjusting button is fixed at the front end of the limiting shaft, the front end of the limiting spring acts on the rear end face of the adjusting button, and the rear end of the limiting spring acts on the step surface of the limiting shaft mounting hole; a tenon is arranged at the rear end of the limiting shaft in the radial direction, a plurality of limiting clamping grooves are evenly formed in one side wall of the narrow groove section of the T-shaped guide groove, so that the side wall forms a sawtooth-shaped structure, the shoulder rest is limited through sliding of the guide rail and the tenon, and the shoulder rest can be rapidly adjusted and locked.

Description

Technical Field

[0001] This invention relates to the field of shoulder-fired weapon technology, and in particular to a mechanism for quickly adjusting and locking a shoulder stock and its installation method. Background Technology

[0002] The shoulder rest is the primary cushioning component supporting the shooter's shoulder. Using perforated or soft materials and adjustable tones, it absorbs recoil and improves comfort. The adjustment of the shoulder rest allows the shooter to find a suitable shoulder position in different scenarios and postures, and adapts to variations in body shape. This adjustment provides comprehensive support for the shooter's weapon handling. Traditional shoulder rest adjustment mechanisms often use threaded knobs, which have drawbacks such as easy loosening, difficulty in controlling the tightening force, and lengthy adjustment times.

[0003] The quick-adjustable shoulder stock effectively improves firing response time, allowing the shooter to quickly correct the recoil transmission axis of the firearm, evenly distributing the recoil force, thereby improving firing stability and operational comfort, and ensuring the accuracy of firearm shooting. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mechanism and installation method for quickly adjusting and locking the shoulder support. By sliding the guide rail and limiting the shoulder support with a tenon, the shoulder support can be quickly adjusted and locked.

[0005] The objective of this invention is achieved as follows: A mechanism for quickly adjusting and locking a shoulder support includes a support body and a shoulder support. A T-shaped guide rail is erected on the support body, and a T-shaped guide groove is erected on the shoulder support. The T-shaped guide rail slides within the T-shaped guide groove. The support body has stepped mounting holes for limiting shafts along its longitudinal direction. A limiting shaft slides within the smaller diameter section of the mounting holes, while a limiting spring is installed within the larger diameter section of the mounting holes. The limiting spring is sleeved on the limiting shaft, and an adjustment button is fixed to the front end of the limiting shaft. The front end of the limiting spring acts on the rear end face of the adjustment button, and the rear end of the limiting spring acts on the stepped surface of the mounting holes. A tenon is provided radially at the rear end of the limiting shaft. Several limiting slots are evenly distributed on one side wall of the narrow section of the T-shaped guide groove, creating a serrated structure on this side wall. Under normal conditions, the tenon engages with a limiting slot under the action of the limiting spring to limit the vertical position of the shoulder support; When the adjustment button is pressed, the tenon moves backward, disengages from the matching limiting groove, and extends into the wide section of the T-shaped guide groove, releasing the limitation on the shoulder support. At this time, the vertical position of the shoulder support can be adjusted.

[0006] Preferably, the support body is provided with a weight-reducing cavity, and the adjustment button extends into the weight-reducing cavity, which allows a finger to be inserted and operated.

[0007] Preferably, the support body is provided with an extreme limiting groove, and the shoulder support is fixed with an extreme limiting screw. The extreme limiting screw is slidably engaged in the extreme limiting groove, and the extreme limiting groove limits the extreme position of the shoulder support for vertical adjustment.

[0008] Preferably, the limit groove is located in the middle of the T-shaped guide rail, and the bottom of the T-shaped guide groove is provided with a limit screw fixing hole, and the limit screw is threadedly fixed in the limit screw fixing hole.

[0009] Preferably, the adjustment button is fixedly connected to the limit shaft by a radially arranged fixing pin.

[0010] Preferably, the ends of the tenon are provided with guide slopes on both sides corresponding to the limiting groove.

[0011] Preferably, the depth of the narrow section of the T-shaped guide groove is less than the depth of the wide section.

[0012] A method for installing a quick-adjusting and locking shoulder support mechanism: S1. Insert the limiting shaft into the mounting hole from the tail of the support body, and rotate the tip of the tenon away from the vertical symmetry center of the support body; S2. Insert the shoulder support into the guide rail from above or below the support body, and hold the shoulder support with your hand to keep it vertically aligned with the support body; S3. Screw in the limit screw fixing hole; S4. Install the limiting spring from the front of the support body; S5. Insert the adjustment button into the limiting shaft; S6. Press the adjustment button to align its pin hole and install the fixing pin.

[0013] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: This invention enables simple and quick adjustment of the shoulder stock without the need for tools. The adjustment range is small, accommodating various combat environments and different shooter body types. It also ensures the shoulder stock remains stable during gun and artillery firing, provides convenient and quick adjustment, and directly controls the locking force through the invention's structure, eliminating the need for manual adjustment. This improves firing stability and operational comfort, evenly distributing recoil along the axis of force transmission and reducing battlefield change response time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the shoulder support adjustment mechanism; Figure 2 This is a plan view of the shoulder support adjustment mechanism; Figure 3 This is a schematic diagram of the support structure; Figure 4 This is a schematic diagram of the shoulder support structure; Figure 5 This is a schematic diagram of the limiting shaft structure; Figure 6 This is a schematic diagram of the limiting spring structure; Figure 7 This is a schematic diagram of the adjustment button structure; Figure 8 This is a schematic diagram of the fixed pin structure; Figure 9 This is a schematic diagram of the limit screw structure.

[0015] Figure Labels In the attached diagram, 1-support body, 2-shoulder support (including insert), 3-limiting shaft, 4-limiting spring, 5-adjusting button, 6-fixing pin, 7-weight reduction clearance cavity. Detailed Implementation

[0016] See Figures 1-9 A mechanism for quickly adjusting and locking a shoulder support includes a support body 1 and a shoulder support 2. A T-shaped guide rail is erected on the support body 1, and a T-shaped guide groove is erected on the shoulder support 2. The T-shaped guide rail is slidably fitted in the T-shaped guide groove. A stepped limiting shaft mounting hole is provided on the support body 1 along the longitudinal direction. A limiting shaft 3 is slidably fitted in the small diameter section of the limiting shaft mounting hole. A limiting spring 4 is provided in the large diameter section of the limiting shaft mounting hole. The limiting spring 4 is sleeved on the limiting shaft 3. An adjustment button 5 is fixed to the front end of the limiting shaft 3. The adjustment button 5 is fixedly connected to the limiting shaft 3 by a radially arranged fixing pin 6. The front end of the limiting spring 4 acts on the rear end face of the adjusting button 5, and the rear end of the limiting spring 4 acts on the stepped surface of the mounting hole of the limiting shaft. The rear end of the limiting shaft 3 is provided with a protruding tenon in the radial direction (the protruding tenon can also cooperate with the support body 1 to limit the front limit position of the limiting shaft 3. In this embodiment, a limiting plate is provided on the back side of the protruding tenon, which plays a symmetrical limiting role). Several limiting slots are evenly provided on one side wall of the narrow section of the T-shaped guide groove, so that the side wall forms a sawtooth structure.

[0017] Under normal conditions, the tenon engages with a limiting groove under the action of the limiting spring 4, limiting the vertical position of the shoulder support 2; the ends of the tenon are provided with guide slopes on both sides corresponding to the limiting groove. When the adjustment button 5 is pressed, the tenon moves backward, disengages from the engaging limiting groove, and extends into the wide section of the T-shaped guide groove, releasing the limitation on the shoulder support 2. At this time, the vertical position of the shoulder support 2 can be adjusted.

[0018] The support body 1 is provided with a weight reduction cavity 7. The adjustment button 5 extends into the weight reduction cavity 7, and the weight reduction cavity 7 allows a finger to be inserted to operate the adjustment button 5.

[0019] The support body 1 is provided with an extreme limiting groove, and the shoulder support 2 is fixed with an extreme limiting screw. The extreme limiting screw is slidably engaged in the extreme limiting groove, which limits the extreme positions of the shoulder support 2 for vertical adjustment. The extreme limiting groove is located in the middle of the T-shaped guide rail, and the bottom of the T-shaped guide groove is provided with a limiting screw fixing hole. The extreme limiting screw is threadedly engaged and fixed in the limiting screw fixing hole.

[0020] This invention primarily involves the cooperation between the support body and the shoulder support's guide rail, enabling the shoulder support to slide freely on the vertical plane of the support body while restricting its horizontal movement. Limit screws fixed to the shoulder support extend into the limit grooves of the support body, controlling the vertical movement limits of the shoulder support. By cleverly utilizing the guide rail's motion characteristics, the tenon of the limiting shaft engages with the groove of the guide rail body. Driven by a limiting spring, the limiting shaft, through the shooter's pressing operation, quickly locks and releases the guide rail, enabling rapid adjustment and locking of the shoulder support.

[0021] The shoulder support guide rail limiting slot and the limiting shaft tenon cooperate to reliably adjust the shoulder support, ensuring that a ≤ b. That is, the depth of the narrow section of the T-shaped guide groove is less than the depth of the wide section.

[0022] The support body is designed with a T-shaped guide rail for shoulder support sliding, limit groove and limit shaft mounting hole, etc., which are the main structure supporting the invention. The length of the limit groove determines the shoulder support adjustment stroke.

[0023] The shoulder rest is a hollowed-out rubber component with an embedded metal insert, primarily used to disperse and absorb recoil. It is the main support for the shooter's shoulder and is designed with a T-shaped guide groove, a limit slot, and a threaded hole for the limit screw to connect and mate with the shoulder rest. The length of the limit slot is not less than the length of the limit slot, ensuring effective locking within the adjustment range.

[0024] The limiting shaft utilizes a unique slot structure with a T-shaped guide groove and a limiting tenon, which effectively restricts the sliding of the shoulder support.

[0025] The limit spring bears the force of the shooter's adjustment and locking of the shoulder support, and is the main drive for the shoulder support's self-locking.

[0026] The adjustment button is installed at the end of the limit shaft and is fixed to the limit shaft by a fixing pin, so as to realize the compression of the limit spring and the adjustment and locking of the shoulder support.

[0027] Installation of this invention: 1. Insert the limiting shaft into the mounting hole from the tail of the support body, and rotate the tip of the tenon to face away from the vertical symmetry center of the support body; 2. Insert the shoulder support into the guide rail of the support body from above or below, and hold it with your hand to keep it vertically aligned with the support body; 3. Screw in the limit screw through the fixing hole of the shoulder support limit screw; 4. Install the limiting spring from the front of the support body; 5. Insert the adjustment button into the limiting shaft; 6. Press the adjustment button to align its pin hole and install the fixing pin.

[0028] Adjustment of the present invention: The shooter presses the adjustment button backward with one finger, and the shoulder support can be freely adjusted within the travel limit range. After determining the suitable position, the adjustment button is released, and the shoulder support is locked, thus completing the adjustment and locking of the shoulder support.

[0029] 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 mechanism for quickly adjusting and locking a shoulder support, comprising a support body and a shoulder support, wherein a T-shaped guide rail is erected on the support body, and a T-shaped guide groove is erected on the shoulder support, the T-shaped guide rail being slidably fitted within the T-shaped guide groove, characterized in that: The support body has stepped mounting holes for limiting shafts along its longitudinal direction. A limiting shaft slides within the smaller diameter section of the mounting holes, while a limiting spring is installed within the larger diameter section of the mounting holes. The limiting spring is sleeved on the limiting shaft, and an adjustment button is fixed to the front end of the limiting shaft. The front end of the limiting spring acts on the rear end face of the adjustment button, and the rear end of the limiting spring acts on the stepped surface of the mounting holes. A tenon is provided radially at the rear end of the limiting shaft. Several limiting slots are evenly distributed on one side wall of the narrow section of the T-shaped guide groove, creating a serrated structure on this side wall. Under normal conditions, the tenon engages with a limiting slot under the action of the limiting spring to limit the vertical position of the shoulder support; When the adjustment button is pressed, the tenon moves backward, disengages from the matching limiting groove, and extends into the wide section of the T-shaped guide groove, releasing the limitation on the shoulder support. At this time, the vertical position of the shoulder support can be adjusted.

2. The mechanism for quickly adjusting and locking the shoulder support according to claim 1, characterized in that: The support body is provided with a weight reduction cavity, and the adjustment button extends into the weight reduction cavity. The weight reduction cavity allows fingers to be inserted and the adjustment button to be operated.

3. The mechanism for quickly adjusting and locking the shoulder support according to claim 1, characterized in that: The support body is provided with an extreme limiting groove, and the shoulder support is fixed with an extreme limiting screw. The extreme limiting screw is slidably engaged in the extreme limiting groove, and the extreme limiting groove limits the extreme position of the shoulder support's up and down adjustment.

4. The mechanism for quickly adjusting and locking the shoulder support according to claim 3, characterized in that: The limit groove is located in the middle of the T-shaped guide rail. The bottom of the T-shaped guide groove is provided with a limit screw fixing hole, and the limit screw is threaded and fixed in the limit screw fixing hole.

5. The mechanism for quickly adjusting and locking the shoulder support according to claim 1, characterized in that: The adjustment button is fixedly connected to the limit shaft by a radially set fixing pin.

6. The mechanism for quickly adjusting and locking the shoulder support according to claim 1, characterized in that: The ends of the tenon are provided with guide slopes on both sides corresponding to the limiting grooves.

7. The mechanism for quickly adjusting and locking the shoulder support according to claim 1, characterized in that: The depth of the narrow section of the T-shaped guide groove is less than the depth of the wide section.

8. A method for installing the quick-adjustment and locking shoulder support mechanism as described in claim 1, characterized in that: S1. Insert the limiting shaft into the limiting shaft mounting hole from the tail of the support body, and rotate the tip of the tenon to face away from the vertical symmetry center of the support body; S2. Insert the shoulder support into the guide rail of the support body from above or below, and hold the shoulder support with your hand to keep it aligned vertically with the support body; S3. Screw in the limit limiting screw through the limiting screw fixing hole; S4. Install the limiting spring from the front of the support body; S5. Insert the adjustment button into the limiting shaft; S6. Press the adjustment button to align its pin hole and install the fixing pin.

Images