Quick-release locking structure

Abstract

The utility model discloses a quick detachable locking structure, including guide rail clamp block, pull rod, locking handle and handle unlocking mechanism, one end of pull rod is worn out guide rail clamp block and is equipped with connecting block, and the other end of pull rod is worn out and is equipped with limiting piece in the part of the upper side of the other side gun guide rail and is clamped, one end of locking handle is equipped with cam, and the cam rotation is installed on connecting block, and the lock pin is slidably installed in locking handle along the axial direction, and connecting block is equipped with lock hole, and handle unlocking mechanism is used for driving the axial movement of lock pin, so that the end of locking handle turns to approach the gun, and the lock pin can insert or exit lock hole, handle unlocking mechanism includes unlocking sliding sleeve, and unlocking sliding sleeve is slidably installed on locking handle outside along the axial direction, and locking handle is equipped with the sliding slot of the exposed lock pin partial area, and the inner wall of unlocking sliding sleeve is equipped with the protruding piece that is connected with the lock pin and can slide along the axial direction of the sliding slot in the sliding slot. The utility model solves the inconvenient operation of the quick detachable locking structure.

Description

Technical Field

[0001] This utility model relates to the field of firearm accessory installation technology, specifically to a quick-release locking structure. Background Technology

[0002] Firearms typically require the installation of aiming accessories during firing. These accessories are mounted on Picatinny rails via a guide bracket, and the bracket and rail are connected by a quick-release locking mechanism.

[0003] Chinese utility model patent CN205505848U discloses a universal quick-clamping self-locking one-button disassembly guide rail bracket for firearm accessories. This guide rail bracket can achieve quick clamping and self-locking of aiming accessories and quick disassembly by turning the locking handle. When disassembling the guide rail bracket, it is necessary to first turn the unlocking slider to unlock the locking handle before the locking handle can be turned. However, the unlocking slider is relatively small and difficult to turn, making the operation very inconvenient. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a quick-release locking structure to solve the problem of inconvenient operation of the existing quick-release locking structure.

[0005] This utility model provides a quick-release locking structure for fixing a guide rail bracket to a gun guide rail, including a guide rail clamp, a pull rod, a locking handle, and a handle unlocking mechanism.

[0006] The upper part of the guide rail clamp is used to lock onto one side of the guide rail bracket, and the lower part of the guide rail clamp is used to lock onto one side of the gun guide rail.

[0007] One end of the pull rod passes through the guide rail clamp and is provided with a connecting block; the other end of the pull rod passes through the guide rail bracket and is clamped on the upper side of the gun guide rail on the other side and is provided with a limiting component.

[0008] One end of the locking handle is provided with a cam, which is rotatably mounted on the connecting block. When the end of the locking handle turns towards the firearm, the cam presses against the guide rail clamp. When the end of the locking handle turns away from the firearm, the cam releases the guide rail clamp.

[0009] A locking pin is slidably installed axially inside the locking handle, and a locking hole is provided on the connecting block. The handle unlocking mechanism is used to drive the locking pin to move axially, so that when the end of the locking handle turns towards the firearm, the locking pin can be inserted into or removed from the locking hole.

[0010] The handle unlocking mechanism includes an unlocking slide sleeve, which is slidably mounted on the outside of the locking handle along the axial direction. The locking handle is provided with a groove that exposes a portion of the locking pin area. The inner wall of the unlocking slide sleeve is provided with a protrusion that extends into the groove, connects to the locking pin, and can slide along the groove along the axial direction.

[0011] Furthermore, the unlocking slide is a semi-enclosed structure with an upper side wall, a lower side wall, and an outer side wall. The upper side wall, lower side wall, and outer side wall of the unlocking slide are respectively located on the side corresponding to the locking handle.

[0012] Furthermore, the outer ends of the upper and lower sidewalls of the unlocking sleeve are provided with anti-slip textures.

[0013] Furthermore, the outer sidewall of the unlocking sleeve extends forward relative to the upper and lower sidewalls at one end near the cam, and the protrusion is located on the inner side of the portion of the outer sidewall that extends out of the upper and lower sidewalls.

[0014] Furthermore, the locking handle has an axially penetrating mounting hole, and a support member is provided at the tail end of the mounting hole. The locking pin is adapted to the hole on the cam side of the mounting hole, and a compression spring is provided in the hole at the tail end of the mounting hole to support the support member and the locking pin.

[0015] Furthermore, the protrusion has a stepped hole coaxial with the mounting hole. The diameter of the stepped hole at the cam end is smaller than the diameter at the tail end. The locking pin passes through the stepped hole, and a limiting protrusion abuts against the step inside the stepped hole on the outer periphery of the locking pin.

[0016] Furthermore, the support member is a nut screw threaded to the end of the mounting hole.

[0017] Furthermore, the cam includes cam units that are symmetrically arranged and spaced apart, and the connecting block is rotatably mounted between the two cam units.

[0018] Furthermore, the limiting component is a locking nut threaded onto the pull rod.

[0019] The beneficial effects of this utility model are reflected in:

[0020] This invention enables the clamping and releasing of the guide rail clamp onto the firearm guide rail by rotating the locking handle to drive the cam. When the locking handle is moved to its end near the firearm, the convex side of the cam turns towards the guide rail clamp and presses it against the guide rail clamp, thus clamping the guide rail clamp onto the firearm guide rail. When the locking handle is moved away from the firearm, the non-convex side of the cam turns towards the guide rail clamp, thereby releasing the press against the guide rail clamp. When the locking handle is moved to its end near the firearm, the unlocking sleeve of the handle unlocking mechanism drives the locking pin to slide axially to insert or exit the locking hole on the connecting block. When the locking pin is inserted into the locking hole on the connecting block, the locking handle is locked to the connecting block. At this time, the locking handle cannot be rotated to drive the cam to release the guide rail clamp, thus preventing the guide rail bracket from falling off the firearm guide rail. When the locking pin exits the locking hole on the connecting block, the locking handle is unlocked. At this time, the locking handle can be rotated to drive the cam to release the guide rail clamp, thus enabling quick disassembly between the guide rail bracket and the firearm guide rail.

[0021] Compared to existing technologies, this application uses an unlocking sleeve outside the locking handle to drive the locking pin to unlock the locking handle. When disassembling the guide rail bracket, the unlocking sleeve can be pulled away from the cam to disengage the locking pin from the lock hole. Then, the locking handle can be moved outward by the unlocking sleeve to drive the cam to release the guide rail clamp, and then the guide rail bracket can be removed from the gun rail. The whole operation is seamless and convenient, solving the problem of inconvenient opening of existing locking handles. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is an assembly perspective view of an embodiment of the present utility model;

[0024] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0025] Figure 3 This is an assembly sectional view of an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the pull rod according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the locking handle in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the unlocking slide sleeve in an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the combination of the present invention and the guide rail bracket.

[0030] In the attached diagram, 100-guide rail clamp; 200-pull rod; 210-connecting block; 211-locking hole; 220-locking nut; 300-locking handle; 310-cam; 320-slide groove; 330-mounting hole; 400-handle unlocking mechanism; 410-unlocking slide sleeve; 411-protrusion; 4111-step hole; 412-upper side wall; 413-lower side wall; 414-outer side wall; 415-anti-slip texture; 420-compression spring; 500-locking pin; 510-limiting protrusion ring; 600-support member; 700-guide rail bracket. Detailed Implementation

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0033] like Figures 1-7 As shown, this utility model embodiment provides a quick-release locking structure for fixing the guide rail bracket 700 to the gun guide rail, including a guide rail clamp 100, a pull rod 200, a locking handle 300, and a handle unlocking mechanism 400.

[0034] Reference Figure 7 The upper part of the guide rail clamp 100 is used to lock onto one side of the guide rail bracket 700, and the lower part of the guide rail clamp 100 is used to lock onto one side of the gun guide rail.

[0035] Reference Figure 4 One end of the pull rod 200 extends out of the guide rail clamp 100 and is provided with a connecting block 210. The other end of the pull rod 200 extends out of the guide rail bracket 700 and is clamped on the upper side of the gun guide rail on the other side and is provided with a limiting member. In this embodiment, for ease of disassembly and assembly, the limiting member is specifically a locking nut 220 threadedly connected to the pull rod 200.

[0036] Reference Figure 1 , 2 and Figure 3 A cam 310 is provided at one end of the locking handle 300. The cam 310 is rotatably mounted on the connecting block 210. When the end of the locking handle 300 turns closer to the firearm, the cam 310 presses against the guide rail clamp 100. When the end of the locking handle 300 turns away from the firearm, the cam 310 releases the guide rail clamp 100.

[0037] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 A locking pin 500 is slidably installed axially inside the locking handle 300. A locking hole 211 is provided on the connecting block 210. The handle unlocking mechanism 400 is used to drive the locking pin 500 to move axially, so that when the end of the locking handle 300 turns close to the firearm, the locking pin 500 can be inserted into or removed from the locking hole 211.

[0038] Specifically, the handle unlocking mechanism 400 includes an unlocking slide sleeve 410, which is slidably mounted on the outside of the locking handle 300 along the axial direction. The locking handle 300 is provided with a groove 320 that exposes a portion of the locking pin 500. The inner wall of the unlocking slide sleeve 410 is provided with a protrusion 411 that extends into the groove 320, is connected to the locking pin 500, and can slide along the axial direction of the groove 320.

[0039] In this embodiment, refer to Figure 6 The unlocking slide 410 has a semi-enclosed structure with an upper side wall 412, a lower side wall 413, and an outer side wall 414. The upper side wall 412, lower side wall 413, and outer side wall 414 of the unlocking slide 410 are respectively located on the outer side of the corresponding side of the locking handle 300. The side of the unlocking slide 410 closest to the firearm does not have a side wall, so it will not hinder the sliding of the unlocking slide 410. At the same time, this design makes it easy to install the unlocking slide 410 on the locking handle 300.

[0040] Preferably, the upper sidewall 412 and the lower sidewall 413 of the unlocking slide 410 are provided with anti-slip textures 415 on the outer side of their tails. During operation, the fingers can pinch the upper and lower sides of the tail of the unlocking slide 410 and pull the unlocking lock handle 300 to prevent the fingers from slipping when unlocking.

[0041] Continue to refer to Figure 6 To optimize the structure, the outer sidewall 414 of the unlocking sleeve 410 extends forward relative to the upper sidewall 412 and the lower sidewall 413 at one end near the cam 310, and the protrusion 411 is provided on the inner side of the portion of the outer sidewall 414 that extends out of the upper sidewall 412 and the lower sidewall 413.

[0042] Reference Figure 2 , Figure 3 and Figure 5 The locking handle 300 has an axially penetrating mounting hole 330. The end of the mounting hole 330 has a support member 600. The locking pin 500 is adapted to the hole of the mounting hole 330 on the side near the cam 310. The hole near the end of the mounting hole 330 has a compression spring 420 that supports the support member 600 and the locking pin 500.

[0043] When the end of the locking handle 300 is turned closer to the firearm, the unlocking slide 410 is released, and the locking pin 500 will be pushed into the locking hole 211 on the connecting block 210 under the action of the compression spring 420, thereby locking the locking handle 300. When the unlocking slide 410 is pulled away from the connecting block 210, the unlocking slide 410 will overcome the elastic force of the compression spring 420 and pull the locking pin 500 out of the locking hole 211 on the connecting block 210, thereby unlocking the locking handle 300. The operation is convenient.

[0044] Preferably, refer to Figure 3 The protrusion 411 has a stepped hole 4111 coaxial with the mounting hole 330. The diameter of the stepped hole 4111 at the end facing the cam 310 is smaller than the diameter at the end facing the tail. The locking pin 500 passes through the stepped hole 4111, and the outer periphery of the locking pin 500 has a limiting protrusion 510 that abuts against the step inside the stepped hole 4111. The locking pin 500 engages with the protrusion 411 on the unlocking sleeve 410 in the above manner, so that when the unlocking sleeve 410 is pulled away from the connecting block 210, the locking pin 500 moves together with it.

[0045] In this embodiment, the support member 600 is a nut screw that is threaded to the end of the mounting hole 330.

[0046] The above structure facilitates the assembly of the locking handle 300 and the handle unlocking mechanism 400. During assembly, the unlocking sleeve 410 is first assembled on the outside of the locking handle 300, and the protrusion 411 on the unlocking sleeve 410 is inserted into the groove 320 on the locking handle 300. Then, the locking pin 500 is inserted from the tail into the mounting hole 330 and passes through the stepped hole 4111 on the protrusion 411. The compression spring 420 is then installed into the tail of the mounting hole 330, and a nut screw is screwed into the tail of the mounting hole 330 to tighten the compression spring 420. The assembly of the locking handle 300 and the handle unlocking mechanism 400 is thus completed. The assembly is very convenient.

[0047] In this embodiment, refer to Figure 1 , Figure 2 and Figure 5 The cam 310 includes cam units that are symmetrically arranged on the left and right and spaced apart. The connecting block 210 is rotatably installed between the two cam units. This not only improves the stability of the engagement between the cam 310 and the connecting block 210, but also allows for better arrangement of the lock hole 211, so that when the locking handle 300 is locked, the lock hole 211 can be aligned with the locking pin 500 that passes through the center of the locking handle 300.

[0048] In this embodiment, the locking handle 300 can be turned to rotate the cam 310, thereby clamping and releasing the guide rail clamp 100 onto the firearm guide rail. When the locking handle 300 is moved to its end near the firearm, the protruding side of the cam 310 deflects the guide rail clamp 100 and presses it against the guide rail clamp 100, thus clamping the guide rail clamp 100 onto the firearm guide rail. When the locking handle 300 is moved to its end away from the firearm, the non-protruding side of the cam 310 deflects the guide rail clamp 100, thereby releasing the pressure on the guide rail clamp 100. When the locking handle 300 is moved to its end near the firearm, the unlocking sleeve 410 of the handle unlocking mechanism 400 can drive the locking pin 5. The locking pin 500 slides axially to insert into or exit the locking hole 211 on the connecting block 210. When the locking pin 500 is inserted into the locking hole 211 on the connecting block 210, the locking handle 300 is locked to the connecting block 210. At this time, the locking handle 300 cannot be rotated to drive the cam 310 to release the clamping force on the guide rail clamp 100, which can prevent the guide rail bracket 700 from accidentally falling off the gun rail. When the locking pin 500 exits the locking hole 211 on the connecting block 210, the locking handle 300 is unlocked. At this time, the locking handle 300 can be rotated to drive the cam 310 to release the clamping force on the guide rail clamp 100, which can realize the quick disassembly between the guide rail bracket 700 and the gun rail.

[0049] Compared to existing technologies, this application uses an unlocking sleeve 410 outside the locking handle 300 to drive the locking pin 500 to unlock the locking handle 300. When disassembling the guide rail bracket 700, the unlocking sleeve 410 can be pulled away from the cam 310, causing the locking pin 500 to exit the locking hole 211. Then, the locking handle 300 is pulled outward by the unlocking sleeve 410 to drive the cam 310 to release the clamping of the guide rail block 100. The guide rail bracket 700 can then be removed from the gun guide rail. The entire operation is seamless and convenient, solving the problem of inconvenient opening of existing locking handles.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A quick-release locking structure for fixing a guide rail bracket to a gun guide rail, comprising a guide rail clamp, a pull rod, a locking handle, and a handle unlocking mechanism; The upper part of the guide rail clamp is used to lock onto one side of the guide rail bracket, and the lower part of the guide rail clamp is used to lock onto one side of the gun guide rail. One end of the pull rod passes through the guide rail clamp and is provided with a connecting block; the other end of the pull rod passes through the guide rail bracket and is clamped on the upper side of the gun guide rail on the other side and is provided with a limiting component. One end of the locking handle is provided with a cam, which is rotatably mounted on the connecting block. When the end of the locking handle turns towards the firearm, the cam presses against the guide rail clamp. When the end of the locking handle turns away from the firearm, the cam releases the guide rail clamp. A locking pin is slidably installed axially inside the locking handle, and a locking hole is provided on the connecting block. The handle unlocking mechanism is used to drive the locking pin to move axially, so that when the end of the locking handle turns towards the firearm, the locking pin can be inserted into or removed from the locking hole. Its features are: The handle unlocking mechanism includes an unlocking slide sleeve, which is slidably mounted on the outside of the locking handle along the axial direction. The locking handle is provided with a groove that exposes a portion of the locking pin area. The inner wall of the unlocking slide sleeve is provided with a protrusion that extends into the groove, connects to the locking pin, and can slide along the groove along the axial direction.

2. The quick-release locking structure according to claim 1, characterized in that: The unlocking slide is a semi-enclosed structure with an upper side wall, a lower side wall, and an outer side wall. The upper side wall, lower side wall, and outer side wall of the unlocking slide are respectively located on the outer side of the corresponding locking handle.

3. The quick-release locking structure according to claim 2, characterized in that: The upper and lower side walls of the unlocking sleeve are both provided with anti-slip textures on their outer tails.

4. The quick-release locking structure according to claim 2, characterized in that: The outer wall of the unlocking sleeve extends forward relative to the upper and lower side walls at one end near the cam, and the protrusion is located on the inner side of the portion of the outer wall that extends out of the upper and lower side walls.

5. The quick-release locking structure according to claim 1, characterized in that: The locking handle has an axially penetrating mounting hole, and a support member is provided at the tail end of the mounting hole. The locking pin is adapted to the hole on the cam side of the mounting hole, and a compression spring is provided in the hole at the tail end of the mounting hole to support the support member and the locking pin.

6. The quick-release locking structure according to claim 5, characterized in that: The protrusion has a stepped hole coaxial with the mounting hole. The diameter of the stepped hole at the cam end is smaller than the diameter at the tail end. The locking pin passes through the stepped hole, and the outer periphery of the locking pin has a limiting protrusion that abuts against the step inside the stepped hole.

7. The quick-release locking structure according to claim 6, characterized in that: The support is a nut screw that is threaded to the end of the mounting hole.

8. The quick-release locking structure according to claim 1, characterized in that: The cam includes cam units that are symmetrically arranged and spaced apart, and the connecting block is rotatably mounted between the two cam units.

9. The quick-release locking structure according to claim 1, characterized in that: The limiting component is a lock nut threaded onto the pull rod.

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