Adjustable distance guide rail quick dismounting mechanism

Abstract

The application discloses a distance-adjustable guide rail quick dismounting mechanism and relates to the technical field of guide rail connection. The distance-adjustable guide rail quick dismounting mechanism comprises a fixed dovetail, a movable dovetail, a top block, a first elastic piece, a first adjusting piece and a second adjusting piece, and the movable dovetail is arranged on one side of the fixed dovetail. The top block is provided with a first abutting surface and a second abutting surface, and the side of the movable dovetail close to the top block is provided with a third abutting surface. When the distance-adjustable guide rail quick dismounting mechanism is used, the hook plates on the fixed dovetail and the movable dovetail are respectively clamped on the two sides of the guide rail, the first adjusting piece is used to drive the top block to rotate, the first abutting surface and the third abutting surface abut, the distance between the hook plates on the movable dovetail and the fixed dovetail is reduced, and the clamping of the guide rail is formed. When clamping, if there is a gap between the hook plates on the movable dovetail or the fixed dovetail and the guide rail, the first abutting surface of the top block is driven to move to the side of the third abutting surface through the second adjusting piece, the movable dovetail moves to the side of the hook plate on the fixed dovetail, and the gap is eliminated, so that fine adjustment is completed.

Description

Technical Field

[0001] This invention relates to the field of guide rail connection technology, specifically to a quick assembly and disassembly mechanism for guide rails with adjustable spacing. Background Technology

[0002] In the use of active-duty firearms and weapons, various scopes are generally required to improve weapon accuracy and combat effectiveness. The connection between the scope and the firearm is mainly achieved through the scope's own mounting and dismounting mechanism and the Picatinny rail on the weapon system.

[0003] The mounting and dismounting mechanisms of scopes generally employ either a nut-locking structure or a quick-release structure. Traditional threaded locking is complex, relying primarily on the self-locking nature of the threads. It requires rotating the nut multiple times to tighten and loosen, and tools are typically used to ensure a secure lock. This cumbersome process hinders quick replacement. Quick-release mechanisms, on the other hand, generally use an eccentric locking system for rapid scope removal and installation. However, this carries the risk of loosening due to impacts during use. Furthermore, the width of the pickup truck rails can change over time due to wear, and variations in rail dimensions between different gun models and batches can lead to insufficient width or gaps, resulting in a loose scope and requiring adjustment. Adjusting the lever length using a threaded mechanism is cumbersome and often requires external tools, making it inconvenient outdoors.

[0004] In view of this, there is an urgent need for a quick assembly and disassembly mechanism for guide rails with adjustable spacing. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention solves this problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quick-assembly and disassembly mechanism for an adjustable-pitch guide rail includes: a fixed dovetail, a movable dovetail, a top block, a first elastic element, a first adjusting element, and a second adjusting element. The movable dovetail is disposed on one side of the fixed dovetail, and the fixed dovetail and the movable dovetail form a clamping mechanism.

[0008] The first elastic element is disposed between the fixed dovetail and the movable dovetail;

[0009] The top block is rotatably disposed on the side of the movable dovetail away from the fixed dovetail. The top block is provided with a first abutting surface and a second abutting surface. The distance between the first abutting surface and the rotation axis of the top block is greater than the distance between the second abutting surface and the rotation axis of the top block. The movable dovetail is provided with a third abutting surface on the side closer to the top block. The first adjusting member is used to rotate the top block so that the first abutting surface or the second abutting surface abuts against the third abutting surface.

[0010] When the first abutting surface comes into contact with the third abutting surface, the second adjusting member is used to move the first abutting surface toward the third abutting surface or away from it.

[0011] A mounting plate is provided on one side of the fixed dovetail, and a mounting hole is provided on the movable dovetail, which is then fitted onto the mounting plate through the mounting hole.

[0012] The mounting plate is provided with a limiting hole, and a mounting shaft passes through the limiting hole. The top block is located at one end of the mounting shaft.

[0013] The first adjusting member includes a first adjusting plate, and the first abutting surface, the second abutting surface, and the first adjusting plate are all disposed in the circumferential direction of the top block.

[0014] The first abutting surface extends obliquely from the side away from the mounting plate to the side closer to the mounting plate, and the oblique direction of the first abutting surface is toward the side away from the fixed dovetail.

[0015] The third abutment surface extends obliquely from the side away from the mounting plate to the side closer to the mounting plate, and the oblique direction of the third abutment surface is toward the side away from the fixed dovetail.

[0016] The second adjusting component includes a gear, which is coaxially mounted on the mounting shaft and threadedly connected to the mounting shaft.

[0017] The limiting hole is used to restrict the movement of the mounting shaft, so that the mounting shaft can only move along the axial direction of the gear.

[0018] The second adjusting component further includes a second adjusting plate, which is slidably disposed on the first adjusting plate. The end of the second adjusting plate near the gear is provided with a plug that is adapted to the gear tooth groove. The sliding direction of the second adjusting plate is towards or away from the gear.

[0019] The first adjusting plate is provided with a sliding hole, and the second adjusting plate is provided with a retaining plate on one side. The retaining plate and the second adjusting plate are respectively provided on both sides of the first adjusting plate. A retaining strip is provided between the retaining plate and the second adjusting plate, and the retaining strip is provided in the sliding hole.

[0020] The first adjusting plate is provided with a second elastic element, which is located on the side of the locking bar near the gear.

[0021] The following beneficial effects can be achieved by using the structure described above in this invention:

[0022] In use, the top block is first rotated by the first adjusting member, causing the second abutting surface to contact the third abutting surface. Since the distance between the second abutting surface and the rotation axis of the top block is closer, the movable dovetail moves away from the fixed dovetail due to the elastic force of the first elastic member. The distance between the hook plates on the movable and fixed dovetails increases. Then, the hook plates on the fixed dovetail and the movable dovetail are respectively secured to both sides of the guide rail. The top block is then rotated again by the first adjusting member, causing the first abutting surface and the third abutting surface to contact. Because the first... The distance between the contact surface and the rotation axis of the top block is greater, so the moving dovetail moves towards the fixed dovetail, reducing the distance between the hook plate on the moving dovetail and the fixed dovetail, thus clamping the guide rail. When clamping, if there is a gap between the hook plate on the moving dovetail or the fixed dovetail and the guide rail, the second adjusting component drives the first contact surface of the top block to move towards the third contact surface, causing the moving dovetail to move towards the hook plate on the fixed dovetail, thus eliminating the gap and completing the fine adjustment. Moreover, no tools are needed for adjustment, which is very convenient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0024] Figure 2 This is a structural schematic diagram from another perspective of this embodiment;

[0025] Figure 3 This is an exploded view of the structure in this embodiment;

[0026] Figure 4 This is a cross-sectional view of the structure in this embodiment;

[0027] Figure 5 This is a structural cross-sectional view from another angle of this embodiment.

[0028] In the diagram: 1. Fixed dovetail; 11. Limiting plate; 2. Moving dovetail; 21. Third abutment surface; 3. Top block; 31. First abutment surface; 32. Second abutment surface; 4. First elastic element; 5. Mounting plate; 51. Limiting hole; 6. First adjusting plate; 61. Sliding hole; 62. Second elastic element; 7. Gear; 8. Second adjusting plate; 81. Plug; 82. Clamping plate; 83. Clamping strip; 9. Mounting shaft. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this invention are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product or device.

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] refer to Figure 1-3 The guide rail quick assembly and disassembly mechanism with adjustable spacing shown includes: fixed dovetail 1, movable dovetail 2, top block 3, first elastic element 4, first adjusting element and second adjusting element. The movable dovetail 2 is disposed on one side of the fixed dovetail 1, and the fixed dovetail 1 and the movable dovetail 2 form a clamp.

[0033] The first elastic element 4 is disposed between the fixed dovetail 1 and the movable dovetail 2. The first elastic element 4 may be composed of several springs or sheet springs.

[0034] The top block 3 is rotatably disposed on the side of the movable dovetail 2 away from the fixed dovetail 1. The top block 3 is provided with a first abutting surface 31 and a second abutting surface 32. The distance between the first abutting surface 31 and the rotation axis of the top block 3 is greater than the distance between the second abutting surface 32 and the rotation axis of the top block 3. The movable dovetail 2 is provided with a third abutting surface 21 on the side close to the top block 3. The first adjusting member is used to rotate the top block 3 so that the first abutting surface 31 or the second abutting surface 32 abuts against the third abutting surface 21.

[0035] When the first abutting surface 31 abuts against the third abutting surface 21, the second adjusting member is used to move the first abutting surface 31 toward or away from the third abutting surface 21.

[0036] Based on the above structure, in use, the scope, etc., is mounted on the fixed dovetail 1; firstly, the top block 3 is driven to rotate by the first adjusting member, so that the second abutting surface 32 abuts against the third abutting surface 21. Since the distance between the second abutting surface 32 and the rotation axis of the top block 3 is closer, the movable dovetail 2 moves away from the fixed dovetail 1 under the elastic force of the first elastic member 4, and the distance between the movable dovetail 2 and the hook plate on the fixed dovetail 1 increases. Then, the hook plate on the fixed dovetail 1 and the movable dovetail 2 are respectively locked onto both sides of the guide rail. Then, the top block 3 is driven to rotate by the first adjusting member, so that the first abutting surface 32 abuts against the third abutting surface 21. 1 and the third abutting surface 21 abut. Since the distance between the first abutting surface 31 and the rotation axis of the top block 3 is greater, the moving dovetail 2 moves towards the side of the fixed dovetail 1 (while compressing the first elastic element 4), making the distance between the moving dovetail 2 and the hook plate on the fixed dovetail 1 smaller, thus forming a clamping of the guide rail. When clamping, if there is a gap between the moving dovetail 2 or the hook plate on the fixed dovetail 1 and the guide rail, the second adjusting element drives the first abutting surface 31 of the top block 3 to move towards the side of the third abutting surface 21, making the moving dovetail 2 move towards the side of the hook plate on the fixed dovetail 1, thus eliminating the gap and completing the fine adjustment.

[0037] like Figure 1 and Figure 2 As shown, in order to install the movable dovetail 2, a mounting plate 5 is provided on one side of the fixed dovetail 1. The movable dovetail 2 is provided with a mounting hole and is fitted onto the mounting plate 5 through the mounting hole, so that the movable dovetail 2 can slide closer to or further away from the fixed dovetail 1 under the restriction and guidance of the mounting plate 5. The installation method of the top block 3 is as follows: a limiting hole 51 is provided on the mounting plate 5, and a mounting shaft 9 passes through the limiting hole 51. The top block 3 is set at one end of the mounting shaft 9, thereby completing the installation of the top block 3.

[0038] like Figures 1-3 As shown, the first adjusting member includes a first adjusting plate 6, a first abutting surface 31, a second abutting surface 32, and the first adjusting plate 6 are all disposed around the top block 3. Thus, by moving the first adjusting plate 6, the top block 3 is rotated, thereby adjusting the orientation of the first abutting surface 31 or the second abutting surface 32, so that the first abutting surface 31 or the second abutting surface 32 faces the third abutting surface 21.

[0039] Further optimizations include, for example Figure 4As shown, the first abutment surface 31 extends obliquely from the side away from the mounting plate 5 to the side closer to the mounting plate 5, with the oblique direction of the first abutment surface 31 towards the side away from the fixed dovetail 1; and the third abutment surface 21 extends obliquely from the side away from the mounting plate 5 to the side closer to the mounting plate 5, with the oblique direction of the third abutment surface 21 towards the side away from the fixed dovetail 1; based on this, the second adjusting member includes a gear 7, which is coaxially disposed on the mounting shaft 9 and threadedly connected to the mounting shaft 9; the limiting hole 51 is used to restrict the movement of the mounting shaft 9, so that the mounting shaft 9 can only move along the gear 7. Axial movement (specifically: the mounting shaft 9 is divided into three sections along the axial direction, one section is connected to the top block 3; one section is circumferentially threaded and threadedly connected to the gear 7; the last section along the axial direction can have a polyhedral or irregular cross section, and the limiting hole 51 is adapted to the last section, thereby restricting the rotation of the mounting shaft 9). Thus, when in the clamping state, by rotating the gear 7, the top block 3 moves along the axial direction of the mounting shaft 9. Since the first abutment surface 31 extends at an incline, the first abutment surface 31 moves closer to or further away from the third abutment surface 21, thereby achieving the effect of fine adjustment.

[0040] like Figures 1-3 As shown, the second adjusting member also includes a second adjusting plate 8, which is slidably disposed on the first adjusting plate 6. The end of the second adjusting plate 8 near the gear 7 is provided with a plug 81 that is adapted to the tooth groove of the gear 7. The sliding direction of the second adjusting plate 8 is towards or away from the gear 7. Thus, when the first abutting surface 31 abuts against the third abutting surface 21, the second adjusting plate 8 slides towards the gear 7, so that the plug 81 is inserted into the tooth groove of the gear 7, thereby turning the second adjusting plate 8, causing the gear 7 to rotate, causing the mounting shaft 9 to move axially, and causing the top block 3 to move axially along the mounting shaft 9.

[0041] like Figure 3As shown, the specific installation method of the second adjusting plate 8 is as follows: a sliding hole 61 is provided on the first adjusting plate 6, and a retaining plate 82 is provided on one side of the second adjusting plate 8. The retaining plate 82 and the second adjusting plate 8 are respectively provided on both sides of the first adjusting plate 6. A retaining strip 83 is provided between the retaining plate 82 and the second adjusting plate 8, and the retaining strip 83 is provided in the sliding hole 61. In this way, the second adjusting plate 8 is installed through the first adjusting plate 6, and the movement of the second adjusting plate 8 is limited and guided. When the first adjusting plate 6 is moved, the second adjusting plate 8 moves together. When it is necessary to drive the gear 7 to rotate... When the gear 7 rotates relative to the mounting shaft 9, the second adjusting plate 8 is slidable, allowing the plug 81 to be inserted into the tooth groove. During normal use (when the gear 7 does not need to rotate relative to the mounting shaft 9), the plug 81 disengages from the tooth groove, so that when the first adjusting plate 6 is moved, the gear 7 will not be driven to rotate. Furthermore, the first adjusting plate 6 is provided with a second elastic element 62 (the second elastic element 62 can be a spring or a sheet). The second elastic element 62 is located on the side of the retaining strip 83 near the gear 7. Thus, during normal use, the second adjusting plate 8 is moved away from the gear 7 by the action of the second elastic element 62.

[0042] Further optimizations include, for example Figure 3 As shown, a limiting plate 11 is provided on the fixed dovetail 1, so that when it is in the clamping state, the limiting plate 11 is inserted into the sliding hole 61 and is located at one end of the sliding hole 61, thereby limiting the position of the first adjusting plate 6.

[0043] In summary, this application has the following advantages:

[0044] 1) Enables quick installation and removal from pickup truck rails;

[0045] 2) It can achieve a self-locking function when locking, while enabling quick disassembly and assembly;

[0046] 3) The width between the hook plate on the fixed dovetail 1 and the moving dovetail 2 after locking can be finely adjusted to adapt to different pickup truck rails;

[0047] 4) It can finely adjust the width between the hook plate on the locked dovetail 1 and the moving dovetail 2 without the aid of tooling.

[0048] 5) The adjustable locking width structure ensures proper locking force and prevents insufficient locking force from occurring.

[0049] 6) After impact, vibration, or shooting, the self-locking structure (such as the first adjusting plate 6 and the top block 3) and the fine-tuning structure (such as the second adjusting plate 8 and the gear 7) can still maintain stability.

[0050] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that are directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A quick-assembly and disassembly mechanism for adjustable-gap guide rails, characterized in that, include: Fixed dovetail (1), movable dovetail (2), top block (3), first elastic element (4), first adjusting element and second adjusting element, wherein the movable dovetail (2) is disposed on one side of the fixed dovetail (1), and the fixed dovetail (1) and the movable dovetail (2) form a clamp; The first elastic element (4) is disposed between the fixed dovetail (1) and the movable dovetail (2); The top block (3) is rotatably disposed on the side of the movable dovetail (2) away from the fixed dovetail (1). The top block (3) is provided with a first abutting surface (31) and a second abutting surface (32). The distance between the first abutting surface (31) and the rotation axis of the top block (3) is greater than the distance between the second abutting surface (32) and the rotation axis of the top block (3). The movable dovetail (2) is provided with a third abutting surface (21) on the side of the top block (3) close to the movable dovetail (2). The first adjusting member is used to rotate the top block (3) so that the first abutting surface (31) or the second abutting surface (32) abuts against the third abutting surface (21). When the first contact surface (31) abuts against the third contact surface (21), the second adjusting member is used to move the first contact surface (31) toward or away from the third contact surface (21); A mounting plate (5) is provided on one side of the fixed dovetail (1), and a mounting hole is provided on the movable dovetail (2), which is sleeved on the mounting plate (5) through the mounting hole; The mounting plate (5) is provided with a limiting hole (51), and a mounting shaft (9) is inserted through the limiting hole (51). The top block (3) is located at one end of the mounting shaft (9). The first adjusting member includes a first adjusting plate (6), and the first abutting surface (31), the second abutting surface (32) and the first adjusting plate (6) are all disposed in the circumferential direction of the top block (3); The first abutting surface (31) extends obliquely from the side away from the mounting plate (5) to the side close to the mounting plate (5), and the oblique direction of the first abutting surface (31) is toward the side away from the fixed dovetail (1). The third contact surface (21) extends obliquely to one side, and the oblique direction of the third contact surface (21) is toward the side away from the fixed swallowtail (1); The second adjusting component includes a gear (7), which is coaxially disposed on the mounting shaft (9) and threadedly connected to the mounting shaft (9); The limiting hole (51) is used to restrict the movement of the mounting shaft (9) so that the mounting shaft (9) can only move along the axial direction of the gear (7).

2. The adjustable-spacing guide rail quick-assembly and disassembly mechanism according to claim 1, characterized in that: The second adjusting member also includes a second adjusting plate (8), which is slidably disposed on the first adjusting plate (6). The end of the second adjusting plate (8) near the gear (7) is provided with a plug (81) that is adapted to the tooth groove of the gear (7). The sliding direction of the second adjusting plate (8) is towards or away from the gear (7).

3. The adjustable-spacing guide rail quick-assembly and disassembly mechanism according to claim 2, characterized in that: The first adjusting plate (6) is provided with a sliding hole (61), and a retaining plate (82) is provided on one side of the second adjusting plate (8). The retaining plate (82) and the second adjusting plate (8) are respectively provided on both sides of the first adjusting plate (6). A retaining strip (83) is provided between the retaining plate (82) and the second adjusting plate (8). The retaining strip (83) is provided in the sliding hole (61).

4. The adjustable-spacing guide rail quick-assembly and disassembly mechanism according to claim 3, characterized in that: The first adjusting plate (6) is provided with a second elastic element (62), which is located on the side of the locking strip (83) near the gear (7).

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