Guide rail locking assembly

Abstract

The utility model relates to a guide rail locking assembly which comprises a screw rod, a locking block arranged on the screw rod in a sleeved mode and a locking nut in threaded connection with a threaded connection end located on the outer side of the locking block, a clamping and blocking piece is arranged on the outer side of the locking block, and a clamping and blocking ring which can be arranged in the clamping and blocking piece in a sleeved mode and axially extends outwards is arranged at the opposite end of the locking nut. According to the utility model, the locking block moves along the axial direction of the screw rod along with the locking nut, the defect that the guide rail cannot be disassembled due to the locking block is effectively avoided, meanwhile, the screw rod and the locking nut can be simply and conveniently disassembled and assembled, the maintenance is easy, and the use cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of firearm sight technology, specifically relating to a guide rail locking assembly. Background Technology

[0002] Figure 1 , 2 Figure 3 shows an existing mounting rail widely used on sights, including a base 1 and a fixed rail 2, a movable rail 3, and a locking assembly disposed on the bottom surface of the base 1. The locking assembly includes a screw 4 with one end (the fixed rail connection end) fixedly connected to the fixed rail 2, a locking block 5 mounted on the movable rail 3, and a locking nut 6. In use, the locking nut 6 presses the locking block 5 toward the fixed rail connection end of the screw 4 (the locking block 5 is pressed against the inclined surface of the bottom side of the guide rail by the locking nut 6, guided by the side lugs 14 at both ends of the locking block 5, and the locking nut 6 presses on the outer surface of the locking block 5), thereby achieving fastening and locking with the rail on the sight being mounted. Although this locking assembly has a simple structure, it suffers from a common defect: when disassembling a sight or firearm, the locking block 5 may jam, failing to disengage smoothly and promptly from the mounting cavity on the movable rail 3. This prevents the base 1 from disengaging from the rail on the sight or firearm in a timely manner, severely impacting normal operation and potentially posing an immeasurable and fatal hazard to the shooter. The reason for this is that during disassembly, the locking block 5 lacks a reliable mechanical connection with the locking nut 6. However, during installation, the locking block 5 is pressed tightly against the rail by the locking nut 6, creating a tendency for it to be compressed. The tight fit between the locking block 5 and the rail prevents it from loosening in time.

[0003] Furthermore, the threaded end of the screw 4, which is the end that is threadedly connected to the locking nut 6, needs to be kept loose but not fall off, meaning the locking nut 6 needs to be in a disassembled, loose state. This allows for the disassembly of the base 1 and the rail, while preventing the locking nut 6 from losing contact with the screw 4. To address this, existing technology designs a riveted baffle at the threaded end of the screw 4, which works in conjunction with the annular limiting baffle 16 on the through hole of the locking nut 6 to form a locking mechanism. This structure can effectively prevent the locking nut 6 from falling off, but it requires destruction during maintenance, resulting in irreversible damage and necessitating replacement in practice, which undoubtedly increases the cost of use. Utility Model Content

[0004] The purpose of this invention is to solve the problems of unstable disassembly process and high cost of use in the existing technology.

[0005] To achieve the above objectives, this utility model provides a guide rail locking assembly, including a screw, a locking block sleeved on the screw, and a locking nut threadedly connected to a threaded connection end located outside the locking block. The special feature is that a retaining member is provided on the outside of the locking block, and a retaining ring that can be sleeved inside the retaining member and extends axially outward is provided on the opposite end of the locking nut.

[0006] The aforementioned retaining element is U-shaped, with a groove on its semi-enclosed inner surface for the retaining ring to be partially fitted into.

[0007] Furthermore, it also includes a retaining spring or retaining plate that is assembled opposite to the retaining member to achieve full locking of the retaining ring; the retaining plate has the same structure as the retaining spring.

[0008] The aforementioned card plate has a fixing lug on each side symmetrical about the vertical center line, which is fixed to the side lug of the locking block by screws.

[0009] The aforementioned screw has a threaded connection end with a threaded hole, which is threaded to a limiting screw that passes through the outer end of the locking nut. The diameter of the screw head of the limiting screw is larger than the inner diameter of the annular limiting baffle of the locking nut.

[0010] The advantages of this utility model are: it can realize that the locking block moves along the screw axis at the same time as the locking nut, which effectively avoids the disadvantage of the locking block getting stuck and the guide rail being unable to be disassembled. At the same time, it can realize the easy disassembly and assembly of the screw and the locking nut, which is easy to maintain and reduces the cost of use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an existing sight rail.

[0012] Figure 2 This is a schematic diagram of the bottom surface of an existing sight rail.

[0013] Figure 3 This is a cross-sectional view of the bottom surface of the existing sight rail.

[0014] Figure 4 This is a schematic diagram of the bottom of the self-locking block of the locking member extending upward, provided in one embodiment.

[0015] Figure 5 yes Figure 4 The bottom sectional view.

[0016] Figure 6 This is a schematic diagram of the self-locking block of the locking member extending downward from the top, according to one embodiment.

[0017] Figure 7 yes Figure 6 A cross-sectional view.

[0018] Figure 8 yes Figure 6 The bottom sectional view.

[0019] Figure 9 This is a schematic diagram of the groove setup.

[0020] Figure 10 This is a schematic diagram of the engagement of the snap ring and the retaining element.

[0021] Figure 11 This is a schematic diagram of the card holder structure.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Base; 2. Fixed rail; 3. Movable rail; 4. Screw; 5. Locking block; 6. Locking nut; 7. Stop; 8. Stop ring; 9. Limit screw; 10. Screw hole; 11. Snap ring; 12. Stop plate; 13. Fixed ear; 14. Side ear; 15. Screw; 16. Annular limit plate; 71. Groove. Detailed Implementation

[0024] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the specific implementation methods, structural features and effects of this utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "aligned", "overlapping", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] This embodiment provides a Figure 4 The guide rail locking assembly shown includes a screw 4, a locking block 5 sleeved on the screw 4, and a locking nut 6 threadedly connected to the threaded connection end located on the outside of the locking block 5. The key feature is that a retaining element 7 is provided on the outside of the locking block 5, while the opposite end of the locking nut 6 (i.e., the end opposite to the outer end of the locking block 5, referred to as the inner end of the locking nut) is provided with a retaining ring 8 that can be sleeved within the retaining element 7 and extends axially outward. Thus, during assembly and disassembly, the retaining element 7 and the retaining ring 8 can be used to connect the locking block 5 and the locking nut 6, enabling the locking block 5 to move synchronously with the locking nut 6 along the axial direction of the screw 4. This effectively avoids the phenomenon of the locking block 5 getting stuck due to the lack of a connection structure ensuring simultaneous movement between the locking block 5 and the locking nut 6 in the prior art, ensuring normal disassembly and eliminating inconvenience and safety hazards caused by the inability to disassemble the locking block 5 in a timely manner.

[0029] Combination Figure 6 As can be seen, the retaining member 7 provided in this embodiment is U-shaped, and its semi-enclosed inner surface is provided with Figure 9 The groove 71 shown is used to accommodate a portion of the retaining ring 8. This is because the locking block 5 and the locking nut 6 are coaxially mounted on the screw 4. Therefore, the three have good coaxiality. The screw 4 can effectively prevent the radial movement of the locking block 5 and the locking nut 6, ensuring that the locking block 5 and the locking nut 6 can only move axially along the screw 4. Therefore, it is only necessary to fit a portion of the retaining ring 8 into the groove 71 of the retaining member 7 to achieve coaxial movement of the locking block 5 and the locking nut 6.

[0030] To ensure axial stability and speed of assembly and disassembly, and to achieve maximum coaxial axial movement, this embodiment, based on the aforementioned embodiments, further provides a retaining spring 11 or retaining plate 12 that is assembled relative to the retaining member 7 to achieve full engagement of the retaining ring 8. Here, the retaining plate 12 is designed to have the same structure as the retaining spring 1, as long as it can be assembled relative to the groove 71 to achieve full engagement of the retaining ring 8. This achieves simultaneous circumferential engagement of the retaining ring 8, effectively suppressing radial wobbling during assembly and disassembly, and greatly improving the stability and speed of axial movement along the screw 4 during assembly and disassembly. In particular, it ensures the stability of the locking block 5's axial movement along the screw 4, avoiding jamming caused by its skewing.

[0031] To further prevent radial wobbling during disassembly and assembly, the retaining plate 12 provided in this embodiment is provided with a fixing ear 13 on each side symmetrical about the vertical center line. It is fixed to the side ear 14 of the locking block 4 by screws 15, realizing the integration of the retaining plate 12 and the locking block 5. This can not only prevent their respective wobbling, but also improve the overall axial stability of the screw 4.

[0032] Finally, see Figure 4 , 6 In this embodiment, a threaded hole 10 is provided at the threaded connection end of the screw 4, which is threadedly connected to the limiting screw 9 that passes through the outer end of the self-locking nut 6. The diameter of the screw head of the limiting screw 9 is larger than the inner diameter of the annular limiting baffle 16 of the locking nut 6, thereby ensuring that the locking nut 6 does not detach from the screw 4 after the locking block 5 is loosened, preventing the loss of the locking nut 6. However, with this structure, in later maintenance, the locking nut 6 and the locking block 5 can be disassembled simply by removing the limiting screw 9, without damaging the screw 4, eliminating the need for replacement parts, and greatly reducing the cost of use.

Claims

1. A guide rail locking assembly comprising a screw rod (4), a locking block (5) sleeved on the screw rod (4), and a locking nut (6) threadedly connected with a threaded connection end located outside the locking block (5), characterized in that, The outer side of the locking block (5) is provided with a clamping piece (7), and the opposite end of the locking nut (6) is provided with a clamping ring (8) which can be sleeved in the clamping piece (7) and extends axially outward.

2. The rail lock assembly of claim 1, wherein, The clamping piece (7) is in U shape, and a groove (71) is arranged on the semi-closed inner surface of the clamping piece (7) to allow the clamping ring (8) to be sleeved therein.

3. The rail lock assembly of claim 2, wherein, A clamping spring (11) or a clamping piece (12) is further arranged opposite to the clamping piece (7) to clamp the clamping ring (8) completely.

4. The rail lock assembly of claim 3, wherein, The clamping piece (12) is symmetrical about the vertical center line, and a fixing lug (13) is arranged on each side of the clamping piece (12), which is fixed to the side lug (14) of the locking block (4) by a screw (15).

5. The track locking assembly of claim 1 or 2 or 3 or 4, wherein, A screw hole (10) is arranged at the threaded end of the screw rod (4), and a limiting screw (9) is screwed into the screw hole (10) from the outer end of the locking nut (6), and the diameter of the screw head of the limiting screw (9) is greater than the inner diameter of the annular limiting piece (16) of the locking nut (6).

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