Distance-adjustable guide rail quick disassembly and assembly mechanism

Abstract

The invention discloses a distance-adjustable guide rail quick disassembly and assembly mechanism, and relates to the technical field of guide rail connection, the distance-adjustable guide rail quick disassembly and assembly 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; a first abutting surface and a second abutting surface are arranged on the top block, and a third abutting surface is arranged on one side, close to the top block, of the movable dovetail; when the guide rail clamping device is used, the hook plate on the fixed dovetail and the movable dovetail are arranged on the two sides of a guide rail in a clamped mode respectively, then the ejector block is driven to rotate through the first adjusting piece, the first abutting face abuts against the third abutting face, the distance between the hook plate on the movable dovetail and the hook plate on the fixed dovetail becomes small, and clamping of the guide rail is formed at the moment; during clamping, when a gap exists between the hook plate on the movable dovetail or the fixed dovetail and the guide rail, the second adjusting piece drives the first abutting face of the ejector block to move towards the third abutting face, the movable dovetail moves towards the hook plate on the fixed dovetail, the gap is eliminated, and fine adjustment is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of rail connection, and particularly to a quick disassembly and assembly mechanism for rails with adjustable spacing. Background Art

[0002] During the use of active firearm weapons and equipment, in order to improve the accuracy of the weapons and enhance the combat effectiveness, various aiming scopes are generally used in combination. The connection method between the aiming scope and the firearm is mainly through the disassembly and assembly mechanism of the aiming scope itself and the Picatinny (hereinafter referred to as Picatinny) rail on the weapon system for locking and installation.

[0003] The disassembly and assembly mechanism of the aiming scope generally adopts a nut locking structure and a quick-release structure; the traditional thread locking is complex to use, mainly relying on the self-locking of the thread to achieve locking, and the nut needs to be rotated multiple times for locking and loosening. At the same time, to ensure reliable locking, tools are generally used to lock the nut, and the disassembly and assembly are complex and cannot achieve quick replacement; while the quick-release structure generally uses an eccentric structure for locking to achieve the quick disassembly and installation of the aiming scope, but there is a risk of loosening when it is subjected to a large impact during use. At the same time, the Picatinny rail will be worn after long-term use, and its width will change, and there are errors in the dimensions of the Picatinny rails of different gun models and batches. When facing such Picatinny rails in use, there will be a situation where the width is insufficient or there is a gap, resulting in failure to lock tightly, and the aiming scope will loosen during use. Therefore, spacing adjustment is required during use. Generally, a thread structure is used to adjust the length of the pull rod, which is cumbersome to adjust and often requires borrowing external tools for adjustment, which is inconvenient outdoors.

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

[0005] Aiming at the problems existing in the prior art, the present invention uses the following technical structure to solve this problem.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A quick disassembly and assembly mechanism for rails with adjustable spacing, comprising: a fixed dovetail, a movable dovetail, a top block, a first elastic member, a first adjusting member, and a second adjusting member. The movable dovetail is arranged on one side of the fixed dovetail, and the fixed dovetail and the movable dovetail form a clamping. The first elastic member is arranged between the fixed dovetail and the movable dovetail; The top block is rotatably arranged on the side of the movable dovetail away from the fixed dovetail. A first abutting surface and a second abutting surface are arranged on the top block. 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. A third abutting surface is arranged on the side of the movable dovetail close 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; When the first abutting surface abuts against the third abutting surface, the second adjusting member is used to move the first abutting surface towards or away from the third abutting surface.

[0007] A mounting plate is arranged on one side of the fixed dovetail. A mounting hole is arranged on the movable dovetail, and the movable dovetail is sleeved on the mounting plate through the mounting hole.

[0008] A limiting hole is arranged on the mounting plate. A mounting shaft is inserted into the limiting hole. The top block is arranged at one end of the mounting shaft.

[0009] The first adjusting member includes a first adjusting plate. The first abutting surface, the second abutting surface and the first adjusting plate are all arranged circumferentially on the top block.

[0010] The first abutting surface extends obliquely from the side away from the mounting plate towards the side close to the mounting plate. The inclination direction of the first abutting surface is towards the side away from the fixed dovetail.

[0011] The third abutting surface extends obliquely from the side away from the mounting plate towards the side close to the mounting plate. The inclination direction of the third abutting surface is towards the side away from the fixed dovetail.

[0012] The second adjusting member includes a gear. The gear is coaxially arranged on the mounting shaft, and the gear is in threaded connection with the mounting shaft; The limiting hole is used to limit the movement of the mounting shaft so that the mounting shaft can only move along the axial direction of the gear.

[0013] The second adjusting member further includes a second adjusting plate. The second adjusting plate is slidably arranged on the first adjusting plate. A plug adapted to the tooth groove of the gear is arranged at one end of the second adjusting plate close to the gear. The sliding direction of the second adjusting plate is towards or away from the gear.

[0014] A sliding hole is arranged on the first adjusting plate. A clamping plate is arranged on one side of the second adjusting plate. The clamping plate and the second adjusting plate are respectively arranged on both sides of the first adjusting plate. A clamping bar is arranged between the clamping plate and the second adjusting plate. The clamping bar is arranged in the sliding hole.

[0015] A second elastic member is provided on the first adjusting plate, and the second elastic member is disposed on a side of the clamping strip close to the gear.

[0016] The above structure of the present invention can achieve the following beneficial effects: During use, first drive the top block to rotate through the first adjusting member, so that the second abutting surface abuts against the third abutting surface. Since the distance between the second abutting surface and the rotation axis of the top block is closer, therefore, under the elastic force of the first elastic member, the moving dovetail moves toward a side away from the fixed dovetail, and the distance between the hook plates on the moving dovetail and the fixed dovetail becomes larger. Then, respectively clamp the hook plates on the fixed dovetail and the moving dovetail on both sides of the guide rail, and then drive the top block to rotate through the first adjusting member, so that the first abutting surface abuts against the third abutting surface. Since the distance between the first abutting surface and the rotation axis of the top block is farther, the moving dovetail moves toward the side of the fixed dovetail, making the distance between the moving dovetail and the hook plate on the fixed dovetail smaller, and at this time, clamping of the guide rail is formed; when clamping, if there is a gap between the hook plate on the moving dovetail or the fixed dovetail and the guide rail, drive the first abutting surface of the top block to move toward the third abutting surface through the second adjusting member, so that the moving dovetail moves toward the hook plate on the fixed dovetail to eliminate the gap and complete fine adjustment; and during adjustment, no tools are needed anymore, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of this embodiment; Figure 2 is a schematic structural diagram of this embodiment from another perspective; Figure 3 is an exploded schematic structural diagram of this embodiment; Figure 4 is a sectional view of the structure of this embodiment; Figure 5 is a sectional view of the structure of this embodiment from another angle.

[0018] In the figure: 1, fixed dovetail; 11, limiting plate; 2, moving dovetail; 21, third abutting surface; 3, top block; 31, first abutting surface; 32, second abutting surface; 4, first elastic member; 5, mounting plate; 51, limiting hole; 6, first adjusting plate; 61, sliding hole; 62, second elastic member; 7, gear; 8, second adjusting plate; 81, plug; 82, clamping plate; 83, clamping strip; 9, mounting shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0020] It should be noted that the terms "including" and "having" in the description and claims of the present invention and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product or equipment that includes a series of steps or units does not necessarily limit to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0021] The following further describes this application in detail in conjunction with the attached Figures 1-5 drawings.

[0022] Refer to Figures 1-3 a quick disassembly and assembly mechanism for a guide rail with adjustable spacing shown in the figure, including: a fixed dovetail 1, a moving dovetail 2, a top block 3, a first elastic member 4, a first adjusting member and a second adjusting member. The moving dovetail 2 is arranged on one side of the fixed dovetail 1, and the fixed dovetail 1 and the moving dovetail 2 form a clamping; The first elastic member 4 is arranged between the fixed dovetail 1 and the moving dovetail 2, and the first elastic member 4 can be composed of several springs or elastic sheets; The top block 3 is rotatably arranged on the side of the moving 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. A third abutting surface 21 is arranged on the side of the moving dovetail 2 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; 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 towards or away from the third abutting surface 21.

[0023] Based on the above structure, when in use, the scope or the like is mounted on the fixed dovetail 1; first, 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 to the side 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 becomes larger. Then, the hook plate on the fixed dovetail 1 and the movable dovetail 2 are respectively clamped on both sides of the guide rail, and then the top block 3 is driven to rotate by the first adjusting member so that the first abutting surface 3 1 abuts against the third abutting surface 21. Since the distance between the first abutting surface 31 and the rotation axis of the top block 3 is farther, the movable dovetail 2 moves toward the side of the fixed dovetail 1 (while compressing the first elastic member 4), so that the distance between the movable dovetail 2 and the hook plate on the fixed dovetail 1 becomes smaller, and the guide rail is clamped at this time; when clamping, when there is a gap between the movable dovetail 2 or the hook plate on the fixed dovetail 1 and the guide rail, the first abutting surface 31 of the top block 3 is driven by the second adjusting member to move toward the side of the third abutting surface 21, so that the movable dovetail 2 moves toward the side of the hook plate on the fixed dovetail 1, so that the gap is eliminated and fine-tuning is completed.

[0024] 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, and a mounting hole is provided on the movable dovetail 2, and the movable dovetail 2 is sleeved on the mounting plate 5 through the mounting hole, so that the movable dovetail 2 can slide under the restriction and guidance of the mounting plate 5, approaching or moving away from the fixed dovetail 1; and the installation method of the top block 3 is specifically as follows: a limiting hole 51 is provided on the mounting plate 5, and a mounting shaft 9 is passed through the limiting hole 51, and the top block 3 is provided at one end of the mounting shaft 9, thereby completing the installation of the top block 3.

[0025] like Figures 1-3 As shown, 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 arranged in the circumference of the top block 3. In this way, by pulling the first adjusting plate 6, the top block 3 is rotated, thereby adjusting the direction 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 is directed toward the third abutting surface 21.

[0026] Further optimization is, Figure 4As shown, the first abutting surface 31 extends obliquely from the side away from the mounting plate 5 towards the side close to the mounting plate 5, and the inclination direction of the first abutting surface 31 is towards the side away from the fixed dovetail 1; moreover, the third abutting surface 21 extends obliquely from the side away from the mounting plate 5 towards the side close to the mounting plate 5, and the inclination direction of the third abutting surface 21 is towards the side away from the fixed dovetail 1; based on this, the second adjusting member includes a gear 7, the gear 7 is coaxially arranged on the mounting shaft 9, and the gear 7 is threadedly connected to the mounting shaft 9; the limiting hole 51 is used to limit the movement of the mounting shaft 9 so that the mounting shaft 9 can only move along the axial direction of the gear 7 (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 provided with threads and is threadedly connected to the gear 7; the cross-section of the last section along the axial direction can be polyhedral or irregular, 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 gear 7 is rotated, so that the top block 3 moves along the axial direction of the mounting shaft 9. Since the first abutting surface 31 extends obliquely, the first abutting surface 31 approaches or moves away from the third abutting surface 21, thereby achieving the function of fine adjustment.

[0027] As Figures 1-3 shown, the second adjusting member further includes a second adjusting plate 8. The second adjusting plate 8 is slidably arranged on the first adjusting plate 6. One end of the second adjusting plate 8 close to the gear 7 is provided with a plug 81 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 is slid towards the gear 7 side, so that the plug 81 is inserted into the tooth groove of the gear 7, and then the second adjusting plate 8 is pulled to rotate the gear 7, so that the mounting shaft 9 moves along the axial direction, and the top block 3 moves along the axial direction of the mounting shaft 9.

[0028] As 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, a clamping plate 82 is provided on one side of the second adjusting plate 8, the clamping plate 82 and the second adjusting plate 8 are respectively provided on both sides of the first adjusting plate 6, a clamping strip 83 is provided between the clamping plate 82 and the second adjusting plate 8, and the clamping 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. By pulling the first adjusting plate 6, the second adjusting plate 8 moves together, and when the gear 7 needs to be driven to rotate When the gear 7 is in motion (when the gear 7 is rotated relative to the mounting shaft 9), the second adjusting plate 8 is slid to insert the plug 81 into the tooth groove. During normal use (when the gear 7 does not need to be rotated relative to the mounting shaft 9), the plug 81 is disengaged from the tooth groove, so that when the first adjusting plate 6 is pulled, the gear 7 will not be driven to rotate; and a second elastic member 62 is provided on the first adjusting plate 6 (the second elastic member 62 can be a spring or a spring), and the second elastic member 62 is provided on the side of the card strip 83 close to the gear 7. In this way, during normal use, the second adjusting plate 8 is affected by the second elastic member 62 and moves away from the gear 7.

[0029] Further optimization is, Figure 3 As shown, a limit plate 11 is provided on the fixed dovetail 1 so that when in the clamping state, the limit plate 11 is inserted into the sliding hole 61 and is located at one end of the sliding hole 61 to limit the position of the first adjustment plate 6.

[0030] In summary, this application has the following advantages: 1) Ability to quickly install and remove from pickup rails; 2) It can realize the self-locking function when locking under the premise of achieving rapid disassembly and assembly; 3) The width between the hook plate on the fixed dovetail 1 and the movable dovetail 2 can be fine-tuned after locking to adapt to different pickup truck guide rails; 4) The width between the hook plate on the fixed dovetail 1 and the movable dovetail 2 after locking can be fine-tuned without the aid of tooling.

[0031] 5) The structure with adjustable locking width can ensure appropriate locking force and prevent the occurrence of insufficient locking force.

[0032] 6) After impact, vibration, and shooting, the self-locking structure (the first adjustment plate 6 and the top block 3 and other structures) and the fine-tuning structure (the second adjustment plate 8 and the gear 7 and other structures) can still maintain stability.

[0033] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations directly derived or imagined by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the scope of protection of the present invention.

Claims

1. A quick disassembly and assembly mechanism for a guide rail with adjustable spacing, characterized in that, Including: A fixed dovetail (1), a movable dovetail (2), a top block (3), a first elastic member (4), a first adjusting member, and a second adjusting member. 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 clamping. The first elastic member (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). A first abutting surface (31) and a second abutting surface (32) are provided on the top block (3). 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). A third abutting surface (21) is provided on the side of the movable dovetail (2) 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). 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) towards or away from the third abutting surface (21).

2. The quick disassembling and assembling mechanism of the guide rail with adjustable spacing according to claim 1, characterized in that: An installation plate (5) is provided on one side of the fixed dovetail (1). An installation hole is provided on the movable dovetail (2), and the movable dovetail (2) is sleeved on the installation plate (5) through the installation hole.

3. The quick disassembly and assembly mechanism of the guide rail with adjustable spacing according to claim 2, characterized in that: A limiting hole (51) is provided on the installation plate (5). An installation shaft (9) is inserted into the limiting hole (51), and the top block (3) is disposed at one end of the installation shaft (9).

4. The quick disassembly and assembly mechanism of the guide rail with adjustable spacing according to claim 3, characterized in that: The first adjusting member includes a first adjusting plate (6). The first abutting surface (31), the second abutting surface (32), and the first adjusting plate (6) are all disposed on the circumference of the top block (3).

5. The quick disassembling and assembling mechanism of the guide rail with adjustable spacing according to claim 4, characterized in that: The first abutting surface (31) extends obliquely from the side away from the installation plate (5) towards the side close to the installation plate (5). The inclination direction of the first abutting surface (31) is towards the side away from the fixed dovetail (1).

6. The quick disassembly and assembly mechanism of the guide rail with adjustable spacing according to claim 5, characterized in that: The third abutting surface (21) extends obliquely from the side away from the installation plate (5) towards the side close to the installation plate (5). The inclination direction of the third abutting surface (21) is towards the side away from the fixed dovetail (1).

7. The quick disassembling and assembling mechanism for a guide rail with adjustable spacing according to claim 5 or 6, characterized in that: The second adjusting member includes a gear (7). The gear (7) is coaxially disposed on the installation shaft (9), and the gear (7) is threadedly connected to the installation shaft (9). The limiting hole (51) is used to limit the movement of the installation shaft (9) so that the installation shaft (9) can only move along the axial direction of the gear (7).

8. The quick disassembling and assembling mechanism of the rail with adjustable spacing according to claim 7, characterized in that: The second adjusting member further includes a second adjusting plate (8). The second adjusting plate (8) is slidably disposed on the first adjusting plate (6). A plug (81) adapted to the tooth groove of the gear (7) is provided at one end of the second adjusting plate (8) close to the gear (7). The sliding direction of the second adjusting plate (8) is towards or away from the gear (7).

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

10. The quick disassembling and assembling mechanism for the distance-adjustable guide rail according to claim 9, characterized in that: A second elastic member (62) is provided on the first adjusting plate (6), and the second elastic member (62) is arranged on the side of the clamping strip (83) close to the gear (7).

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