Anti-loosening self-tapping screw assembly

Abstract

The utility model provides an anti-loosening self-tapping screw assembly, which belongs to the technical field of self-tapping screws and structurally comprises a self-tapping screw, the self-tapping screw is integrally formed by a screw rod and a screw head, the screw head is in threaded connection with an anti-loosening structure to form the loosening self-tapping screw assembly, the screw head on the self-tapping screw can completely sink into a twisting block, and the anti-loosening self-tapping screw assembly is convenient to use. After the self-tapping screw is completely locked into an object, when the object is made of wood, the surface of the wood object cannot be completely seized only by reversely rotating the reverse rotation seizing seat, and at the moment, the reverse rotation seizing anti-loosening performance of the anti-loosening structure on the wood object can be enhanced through embedded matching of the reinforcing nail piece on the reverse rotation seizing seat; and when the object is made of metal, the surface of the metal object can be locked by reversely rotating the reverse rotation locking seat, and the anti-loosening structure can effectively lock objects made of different materials, so that the self-tapping screw cannot be loosened, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a self-tapping screw assembly belongs to self-tapping screw technical field. BACKGROUND

[0002] Self-tapping screw is a screw with a drill bit, which can drill and tap holes in objects, thereby fixing and locking the objects, and is widely used in the installation of wooden furniture.

[0003] However, the self-tapping screw structure on the market is single, generally only composed of a screw rod and a screw head, which is prone to loosening during long-term use, causing the structure of the furniture to collapse. To overcome the above-mentioned shortcomings, the utility model provides a self-tapping screw assembly. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a self-tapping screw assembly to solve the existing problems.

[0005] To achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: the self-tapping screw assembly comprises a self-tapping screw, which is composed of a screw rod and a screw head, and a loosening prevention structure is connected to the screw head by threads.

[0006] The loosening prevention structure comprises a reverse jaw seat, and a torsion block is arranged in the middle of the top surface of the reverse jaw seat, which is hexagonal in shape. The reverse jaw seat and the torsion block are integrated, and a plurality of reinforcing nails are vertically embedded on the left and right sides of the reverse jaw seat.

[0007] Further improvement is that a loosening prevention thread is formed at the lower end of the screw head, a non-slip clamping edge is arranged around the upper end of the screw head, and a lock opening is formed in the top surface of the screw head.

[0008] Further improvement is that a plurality of internal hexagonal sockets for stabilizing the reinforcing nails are formed in the top surface of the left and right sides of the reverse jaw seat, a nail hole is formed in the middle of the bottom surface of the internal hexagonal socket, and a plurality of convex teeth are arranged in an annular array around the bottom surface of the reverse jaw seat.

[0009] Further improvement is that a sinking groove for sinking the screw head is formed in the middle of the top surface of the torsion block, a loosening prevention thread hole is formed in the middle of the bottom surface of the reverse jaw seat, and the sinking groove and the loosening prevention thread hole are in communication.

[0010] Further improvement is that each reinforcing nail is composed of a nail fixing sleeve and a steel nail sleeve, the nail fixing sleeve is embedded in the internal hexagonal socket, and the nail fixing sleeve is made of plastic.

[0011] The utility model has the advantages of:

[0012] The utility model provides a self -tapping screw assembly of preventing loosening, through the combination of screw rod and screw head's self -tapping screw is in the thread connection design between the combination of the anti -loosening structure of reverse bite seat, torsion piece, reinforcing nail piece, forms loosening self -tapping screw assembly, and the screw head on the self -tapping screw can be completely sunk in torsion piece, and it will not form too high convex part, and when the object is wooden material after the self -tapping screw is completely locked into the object, only reverse rotation reverse bite seat cannot bite dead wooden object surface completely, at this time, through the embedding cooperation of reinforcing nail piece on reverse bite seat, can strengthen the reverse rotation bite dead anti -loosening performance of the anti -loosening structure to wooden object, and when the object is metal material, through reverse rotation reverse bite seat can bite dead metal object surface, the anti -loosening structure of the utility model can be effectively bitten dead to the object of different material, so that the self -tapping screw will not have loosening problem, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is self -tapping screw assembly structure schematic diagram of the utility model,

[0014] Figure 2 It is self -tapping screw structure schematic diagram of the utility model,

[0015] Figure 3 It is anti -loosening structure structure schematic diagram of the utility model,

[0016] Figure 4 It is anti -loosening structure top surface schematic diagram of the utility model,

[0017] Figure 5 It is reverse bite seat bottom surface structure schematic diagram of the utility model,

[0018] Figure 6 It is reinforcing nail piece structure schematic diagram of the utility model. PREFERRED EMBODIMENT

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] Please refer to Figures 1-6 The utility model self -tapping screw assembly of preventing loosening schematic diagram technical scheme: its structure includes self -tapping screw 1, and self -tapping screw 1 is integrally formed by screw rod 11 and screw head 12, the screw head 12 is connected with anti -loosening structure 2, and the anti -loosening structure 2 includes reverse bite seat 21, and the reverse bite seat 21 top surface middle part is provided with torsion piece 22, and torsion piece 22 is hexagonal, the reverse bite seat 21 and torsion piece 22 are integrated structure, and the reverse bite seat 21 left and right sides are vertically embedded with a plurality of reinforcing nail piece 23.

[0021] The screw head 12 lower end is provided with an anti-loose outer thread 121, and the screw head 12 upper end is provided with an anti-loose flange 122, and the screw head 12 top surface is provided with a lock hole 123.

[0022] The anti-reverse jaw 21 top surface is provided with a plurality of internal hex socket openings 211 for reinforcing the stability of the nail member 23, and the internal hex socket openings 211 bottom surface is provided with a plurality of convex teeth 213 in an annular array.

[0023] The anti-reverse jaw 21 bottom surface is provided with a plurality of convex teeth 213 in an annular array.

[0024] Each of the reinforcing nail members 23 is composed of a nail fixing sleeve 231 and a steel nail 232, the nail fixing sleeve 231 is embedded in the internal hex socket opening 211, and the nail fixing sleeve 231 is made of plastic material.

[0025] Working principle:

[0026] Before use, first, the anti-loose structure 2 is locked on the screw head 12 through the cooperation of the anti-loose outer thread 121 and the anti-loose thread hole 222, and at this time, the anti-loose flange 122 lower end and the sink groove 221 bottom surface are in abutting state, so that the screw head 12 is completely sunk in the sink groove 221, then the self-tapping screw 1 is locked in the object, when the anti-reverse jaw 21 bottom surface each convex tooth 213 abuts the object surface, it is the self-tapping screw 1 locked state, then reverse rotation of the twist block 22, so that each convex tooth 213 is bitten dead object surface, the anti-loose structure 2 is used to prevent the self-tapping screw 1 from loosening and reinforcing, it should be noted that when the object is made of wood, only the convex teeth 213 cannot completely bite the object surface, at this time, it is necessary to knock the steel nails 232 to make them descend through the nail hole 212 and embed in the wooden object to reinforce the anti-loose structure 2, in addition, when the object is made of metal, only the reverse rotation of the twist block 22 can make each convex tooth 213 bite the object surface, without the need for knocking the steel nails 232 to embed.

[0027] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, obviously the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0028] In addition, it should be understood that, although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. An anti-loosening self-augering screw assembly, characterized by: The structure includes self-tapping screw (1), and the self-tapping screw (1) is composed of screw rod (11) and screw head (12) in an integrated manner, the screw head (12) is threadedly connected with anti-loosening structure (2); The anti-loosening structure (2) includes reverse jaw seat (21), and the reverse jaw seat (21) is provided with torsion block (22) in the middle of the top surface, and the torsion block (22) is hexagonal, the reverse jaw seat (21) and the torsion block (22) are an integrated structure, and a plurality of reinforcing nails (23) are vertically embedded on the left and right sides of the reverse jaw seat (21).

2. A tamper-proof self-augering screw assembly according to claim 1, wherein: The screw head (12) is provided with anti-loosening external thread (121) at the lower end, and is provided with anti-loosening clamping edge (122) at the upper end, and is provided with lock port (123) on the top surface.

3. A tamper-proof self-augering screw assembly according to claim 2, wherein: The reverse jaw seat (21) is provided with a plurality of internal hexagonal sleeve ports (211) on the top surface of the left and right sides for stable sleeve of the reinforcing nails (23), and the bottom surface of the internal hexagonal sleeve port (211) is provided with nail through hole (212) in the middle, and the bottom surface of the reverse jaw seat (21) is provided with a plurality of convex teeth (213) in an annular array.

4. A tamper-proof self-augering screw assembly according to claim 3, wherein: The torsion block (22) is provided with a sinking groove (221) in the middle of the top surface for sinking sleeve of the screw head (12), the bottom surface of the reverse jaw seat (21) is provided with an anti-loosening thread hole (222) penetratingly, and the sinking groove (221) and the anti-loosening thread hole (222) are in communication.

5. A tamper-proof self-augering screw assembly according to claim 4, wherein: Each reinforcing nail (23) is composed of nail fixing sleeve (231) and steel nail (232) sleeve, the nail fixing sleeve (231) is embedded in the internal hexagonal sleeve port (211), and the nail fixing sleeve (231) is made of plastic material.

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