Anti-thread-slipping self-tapping screw
By designing a switchable screw head structure, the problem of stripping caused by the single traditional screw head is solved, and the screw's stability and service life are extended under different tools and scenarios, adapting to diverse work needs.
Patent Information
- Application Number
- CN202423140741.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional screw head types are fixed and limited, causing screws to fail when stripped or damaged. This makes them unsuitable for diverse and complex work requirements, thus limiting their service life and scope of application.
A self-tapping screw with anti-slip threads was designed, with the screw head switchable to Phillips head or hexagonal head. Stability and switchability are achieved through structures such as friction strips, magnetic blocks, self-tapping threads and guide heads, including a conversion component with a hexagonal frame and sliding rod.
It extends the lifespan of screws, improves applicability in different tools and scenarios, and enhances the stability and safety of connections.
Smart Images
Figure CN223578459U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to self -tapping screw technical field especially, relates to a self -tapping screw of anti -slip silk. BACKGROUND
[0002] In modern industry and daily life, as a common fastening connecting piece, screw is widely used in various fields, and self -tapping screw can directly attack into material without pre -punching due to its unique self -tapping ability, thereby providing a convenient fastening mode.
[0003] In traditional screw design, the type of screw head is often fixed and single, and common such as cross type or hexagonal type, since the type of screw head is not switchable, once the screw head appears silk slip or damage in the use process, the whole screw basically loses the use value, which means that in the disassembly or fastening operation, if the screw head is damaged, often cannot continue to complete the work, can only abandon the screw, causes the waste of material and the increase of cost, and moreover, the fixed screw head type limits the selection of tool. In some specific working scenarios, only specific type of tool can be used, but since the screw head is not matched with the existing tool, leads to the operation cannot be carried out, brings great inconvenience to construction, and the design of traditional fixed single screw head has many problems in actual use, greatly limits the service life, application range and practical value of screw, cannot meet the diversified and complex work demand, therefore, the self -tapping screw of anti -slip silk is proposed to solve the above -mentioned problems. SUMMARY
[0004] In order to make up for the above shortage, the utility model provides a self -tapping screw of anti -slip silk, aims at solving the problem of "the type of screw head is often fixed and single, since the type of screw head is not switchable, once the screw head appears silk slip or damage in the use process, the whole screw basically loses the use value" mentioned in prior art.
[0005] In order to realize the above -mentioned purpose, the utility model adopts the following technical scheme: a self -tapping screw of anti -slip silk, including self -tapping screw rod, the top of self -tapping screw rod is fixedly connected with screw head, the top center of screw head is provided with cross slot, the inner wall of cross slot is provided with friction strip, the surface of self -tapping screw rod is fixedly connected with pressing plate, the inner wall of pressing plate is provided with change assembly, change assembly includes hexagonal frame, the outer side of hexagonal frame is fixedly connected with lifting block, the inner side of hexagonal frame is fixedly connected with sliding rod.
[0006] As a further description of the above technical scheme: the surface of hexagonal frame is slidably connected with the inner wall of pressing plate.
[0007] As a further description of the above technical solution: the six-side frame is slidably connected with the inner wall of the screw head through the sliding rod.
[0008] As a further description of the above technical solution: the bottom of the pressing plate is provided with a magnetic block for increasing the stability of the self-tapping screw.
[0009] As a further description of the above technical solution: the surface of the self-tapping screw rod is provided with a self-tapping thread.
[0010] As a further description of the above technical solution: the lower surface of the self-tapping thread is provided with a plurality of barbs for improving the anti-loosening function of the self-tapping screw.
[0011] As a further description of the above technical solution: the bottom of the self-tapping screw rod is fixedly connected with a guide head.
[0012] As a further description of the above technical solution: the surface of the guide head is arc-shaped and smooth.
[0013] The utility model has the following beneficial effects:
[0014] 1、The utility model discloses a self-tapping screw with anti-slip function, which comprises a six-side frame, a lifting block and a sliding rod.
[0015] 2、The utility model discloses a self-tapping screw with anti-slip function, which comprises a six-side frame, a lifting block and a sliding rod. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of the self-tapping screw with anti-slip function.
[0017] Figure 2 It is a whole structure half cutaway view of the self-tapping screw with anti-slip function.
[0018] Figure 3 It is a self-tapping thread structure schematic view of the self-tapping screw with anti-slip function.
[0019] Figure 4 It is a six-side frame structure cutaway view of the self-tapping screw with anti-slip function.
[0020] LEGEND:
[0021] 1, self-tapping screw; 2, screw head; 3, cross slot; 4, friction strip; 5, pressing plate; 6, conversion assembly; 61, hexagonal frame; 62, lifting block; 63, sliding rod; 7, magnetic block; 8, self-tapping thread; 9, guide head. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0023] Please refer to Figure 1 Figure 2 The utility model provides an embodiment: a self-tapping screw of anti-slip wire, including self-tapping screw 1, is carbon steel material, has certain strength and hardness, the top of self-tapping screw 1 is fixedly connected with screw head 2, the top center of screw head 2 is provided with cross slot 3, namely cross mouth screw head 2, the inner wall of cross slot 3 is provided with friction strip 4, friction strip 4 can increase the connecting force of electric screwdriver and screwdriver, the surface of self-tapping screw 1 is fixedly connected with pressing plate 5, and pressing plate 5 covers and protects the connecting hole, and the inner wall of pressing plate 5 is provided with conversion assembly 6.
[0024] Please refer to Figure 1 Figure 3 The bottom of pressing plate 5 is provided with magnetic block 7, if the connecting object is ferrous metal object, the magnetic block 7 at the bottom can be closely adsorbed with the ferrous metal object, which is used to increase the stability of the self-tapping screw, the surface of self-tapping screw 1 is provided with self-tapping thread 8, the lower surface of self-tapping thread 8 is provided with a plurality of barbs, and the barbs also play a cutting role along the profile, so that it is more labor-saving, which is used to improve the anti-loose function of the self-tapping screw, the bottom of self-tapping screw 1 is fixedly connected with guide head 9, the surface appearance of guide head 9 is arc smooth surface, realizes that the self-tapping screw has good stability whether it is used for metal plate or wood plate, ensures the stability of the connecting part, and enhances the reliability and safety of the structure whole built by metal plate or wood plate.
[0025] Please refer to Figure 4 The transformation assembly 6 comprises a hexagonal frame 61, the surface of the hexagonal frame 61 is slidably connected with the inner wall of the pressing plate 5, the lifting block 62 makes the hexagonal frame 61 rise through the sliding rod 63, the outer side of the hexagonal frame 61 is fixedly connected with the lifting block 62, the hexagonal frame 61 is slidably connected with the inner wall of the screw head 2 through the sliding rod 63, when the hexagonal frame 61 covers the screw head 2, the cross-shaped head is changed into a hexagonal head, the inner side of the hexagonal frame 61 is fixedly connected with the sliding rod 63, the self-tapping screw screw head 2 can be switched from a cross-shaped head to a hexagonal head, when one type of screw head 2 slips or is damaged, another type can be switched to be used for disassembling or fastening, thereby prolonging the service life of the screw.
[0026] Working principle: when in use, the installer twists the cross-shaped groove 3 through a screwdriver, the friction strip 4 increases the friction force, the screwdriver and the cross-shaped groove 3 are more tightly fixed and not easy to slip off, then continue to rotate, the appearance of the arc-shaped smooth surface of the guide head 9 can more easily guide the self-tapping screw rod 1 to enter the object, then the self-tapping thread 8 contacts the surface of the object and starts to cut the hole in the connecting surface, under the action of the barb at the bottom, the barb also plays a cutting role on the profile, thereby being more labor-saving, when the self-tapping screw rod 1 and the self-tapping thread 8 are completely rotated into the object, the pressing plate 5 covers and protects the connecting hole, and further enhances the anti-loosening function of the screw under the action of the barb, if the connected object is an iron metal object, the magnetic attraction block 7 at the bottom can be closely adsorbed with the iron metal object, thereby further improving the stability of the self-tapping screw, meanwhile, the installer can also lift the hexagonal frame 61 through the sliding rod 63 by actuating the lifting block 62, the hexagonal frame 61 covers the screw head 2, thereby realizing that the self-tapping screw screw head 2 can be switched from a cross-shaped head to a hexagonal head, when one type of screw head 2 slips or is damaged, another type can be switched to be used for disassembling or fastening, thereby prolonging the service life of the screw, making it be able to be used in more different working scenes and tool conditions, and improving the practical value of the screw.
[0027] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A self-tapping screw with anti-slip threads, comprising a self-tapping screw rod (1), characterized in that: The top of the self-tapping screw (1) is fixedly connected to a screw head (2), and a cross groove (3) is provided at the center of the top of the screw head (2). A friction strip (4) is provided on the inner wall of the cross groove (3). A pressure plate (5) is fixedly connected to the surface of the self-tapping screw (1). A conversion component (6) is provided on the inner wall of the pressure plate (5). The conversion component (6) includes a hexagonal frame (61). A lifting block (62) is fixedly connected to the outer side of the hexagonal frame (61), and a sliding rod (63) is fixedly connected to the inner side of the hexagonal frame (61).
2. The self-tapping screw with anti-slip threads according to claim 1, characterized in that: The surface of the hexagonal frame (61) is slidably connected to the inner wall of the pressure plate (5).
3. The self-tapping screw with anti-slip threads according to claim 1, characterized in that: The hexagonal frame (61) is slidably connected to the inner wall of the screw head (2) via the sliding rod (63).
4. The self-tapping screw with anti-slip threads according to claim 1, characterized in that: A magnetic block (7) is installed at the bottom of the pressure plate (5) to increase the stability of the self-tapping screw.
5. The self-tapping screw with anti-slip threads according to claim 1, characterized in that: The surface of the self-tapping screw (1) is provided with self-tapping threads (8).
6. The self-tapping screw with anti-slip threads according to claim 5, characterized in that: The lower surface of the self-tapping thread (8) is provided with several barbs to enhance the anti-loosening function of the self-tapping screw.
7. The self-tapping screw with anti-slip threads according to claim 1, characterized in that: The bottom of the self-tapping screw (1) is fixedly connected to a guide head (9).
8. The self-tapping screw with anti-slip threads according to claim 7, characterized in that: The surface of the guide (9) is a smooth arc shape.