Anti-slip cross pan head self-tapping screw
By incorporating anti-slip posts and sliding elements inside the self-tapping screw, the rotation of the screwdriver drives the anti-slip posts to insert into the material, thus solving the problem of loosening and slippage caused by vibration in self-tapping screws and achieving higher fastening reliability.
Patent Information
- Application Number
- CN202520289121.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Self-tapping screws are prone to loosening and slippage due to vibration during long-term use, which affects the tightening effect.
A non-slip Phillips head self-tapping screw was designed. By setting an anti-slip post and a sliding component inside the self-tapping post, the rotation of the screwdriver drives the anti-slip post to insert into the material for limiting and preventing the screw from rotating or moving.
It effectively prevents screws from slipping due to vibration after tightening, thus improving the stability and reliability of the tightening.
Smart Images
Figure CN223662308U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to self -tapping screw technical field, concretely is a cross disc head self -tapping screw of anti -skid. BACKGROUND
[0002] Self -tapping screw is a kind of threaded fastener, its feature is in the process of screwing in, the taper of screw self -carrying can directly attack into the thread that is hit in advance, and using self -tapping screw can save the step of pre -drilling hole, saves time and cost.
[0003] At present, self -tapping screw is in the process of screwing in, the thread can cut the material contacted, forms the thread matched with it, to realize fastening connection, and the friction between screw and material helps to prevent screw loosening, the tip of screw and thread are extruded material when screwing in, make material deform to some extent, to fill the space around screw, enhance fastening effect, but in the process of long-term use, due to the effect of vibration, screw and material are loose, to easily lead to screw slippage, affect the effect of fastening.For this reason, the utility model provides a cross disc head self -tapping screw of anti -skid. CONTENT OF UTILITY MODEL
[0004] The utility model aims at providing a cross disc head self -tapping screw of anti -skid to solve the problem in the background art, to achieve the above object, the utility model provides the following technical scheme: a cross disc head self -tapping screw of anti -skid, including self -tapping column, the outside of self -tapping column is fixedly connected with helical fin, the end of self -tapping column is fixedly connected with connecting column, the end of connecting column is fixedly connected with nut, the inside of self -tapping column and connecting column is provided with cavity, the inside of cavity is installed with multiple groups of anti -skid column of sliding connection with connecting column, the sliding groove that is matched with anti -skid column is set up on connecting column, the sliding member for driving anti -skid column sliding is installed in nut, sliding member extends to the inside of cavity, by anti -skid column insertion self -tapping object, so that self -tapping screw has the effect of anti -skid.
[0005] Preferably, the sliding member includes a tapered block mounted inside the cavity, the tapered block is in sliding connection with the inner wall of the cavity, and a plurality of moving grooves are formed on the tapered block, a moving column is slidably connected in each moving groove, a fixed column is fixedly connected to the moving column, and a plurality of fixed columns are fixedly connected with a plurality of anti-skid columns, respectively, a moving member is connected to the tapered block for driving the tapered block to move, facilitating the sliding of the anti-skid columns.
[0006] Preferably, the moving piece comprises a rotating block connected with the nut, a cross-shaped groove is formed in the rotating block, the cross-shaped groove extends to the nut, and the bottom end of the rotating block is fixedly connected with a rotating shaft, the end of the rotating shaft is fixedly connected with a threaded column which is slidably connected with the tapered block, and the outer side of the threaded column is threadedly connected with a threaded block which is fixedly connected with the tapered block, so that the tapered block can be driven to move.
[0007] Preferably, the end of the self-tapping column and the end of the anti-skid column are tapered, so that the self-tapping screw can be self-tapped, and the anti-skid column can be inserted into the self-tapped object.
[0008] Preferably, an anti-skid pad is arranged in the cross-shaped groove, so that the screwdriver cannot slip in the cross-shaped groove of the rotating block, and the self-tapping ability of the self-tapping screw is improved.
[0009] The utility model at least has the following beneficial effects:
[0010] The cross-shaped head self-tapping screw of the utility model can limit the screw through the anti-skid column when the self-tapping screw is used, so that the screw cannot rotate and move after being fastened, and thus the problem that the screw is easily slipped due to vibration in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a whole structure schematic view of the utility model;
[0012] Figure 2 It is a cross section structure schematic view of the utility model;
[0013] Figure 3 It is a sliding piece structure schematic view of the utility model;
[0014] Figure 4 It is a whole structure schematic view of the utility model Figure 3 It is a structure schematic view of area A of the utility model.
[0015] In the drawing: 1 - self-tapping column; 2 - spiral piece; 3 - connecting column; 4 - nut; 5 - cavity; 6 - anti-skid column; 7 - sliding groove; 8 - sliding piece; 9 - tapered block; 10 - moving groove; 11 - moving column; 12 - fixed column; 13 - moving piece; 14 - cross-shaped groove; 15 - rotating shaft; 16 - threaded column; 17 - threaded block; 18 - rotating block. DETAILED DESCRIPTION
[0016] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0017] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: an anti-slip cross disk head self-tapping screw, including self-tapping column 1, the outer side of the self-tapping column 1 is fixedly connected with helical fin 2, the end of the self-tapping column 1 is fixedly connected with connecting column 3, the end of the connecting column 3 is fixedly connected with nut 4, the self-tapping column 1 and the connecting column 3 inside are provided with cavity 5, the cavity 5 inside is installed with multiple groups and the connecting column 3 slidingly connected anti-slip column 6, sliding slot 7 is opened on the connecting column 3, and the sliding slot 7 is matched with the anti-slip column 6, sliding member 8 for driving the anti-slip column 6 to slide is installed in the nut 4, the sliding member 8 extends to the cavity 5 inside, by anti-slip column 6 insertion self-tapping object, so that self-tapping screw has the effect of anti-slip.
[0018] In the embodiment, when screw self-tapping, screw nut 4 is twisted by the action of screwdriver, the self-tapping column 1 drives helical fin 2 to rotate by twisting nut 4, so that the screw is self-tapped to the inside of material, then multiple anti-slip columns 6 are simultaneously slid outward by the action of sliding member 8, and then the anti-slip column 6 is inserted into the inside of material, the screw is limited by the action of anti-slip column 6, so that the screw cannot rotate and move after fastening, and then the screw is prevented from slipping.
[0019] The sliding member 8 includes a tapered block 9 installed in the cavity 5, the tapered block 9 is slidingly connected with the inner wall of the cavity 5, and a plurality of moving grooves 10 are formed in the tapered block 9, a moving column 11 is slidingly connected in the moving groove 10, a fixed column 12 is fixedly connected on the moving column 11, and a plurality of fixed columns 12 are fixedly connected with a plurality of anti-slip columns 6, respectively, a moving member 13 for driving the tapered block 9 to move is connected to the tapered block 9, to facilitate the sliding of the anti-slip column 6.
[0020] In the embodiment, the tapered block 9 is lowered by the action of the moving member 13, the tapered block 9 is extruded against the fixed column 12 by the downward movement of the tapered block 9, the fixed column 12 drives the anti-slip column 6 to slide outward by the extrusion, and then the anti-slip column 6 is inserted into the inside of material.
[0021] The moving part 13 comprises a rotating block 18 connected with the nut 4, a cross-shaped groove 14 is formed in the rotating block 18, the cross-shaped groove 14 extends to the nut 4, and the bottom end of the rotating block 18 is fixedly connected with a rotating shaft 15, the end of the rotating shaft 15 is fixedly connected with a threaded column 16 which is in sliding connection with the tapered block 9, and the outer side of the threaded column 16 is threadedly connected with a threaded block 17 which is fixedly connected with the tapered block 9, so as to drive the tapered block 9 to move.
[0022] In this embodiment, the cross-shaped screwdriver is inserted into the cross-shaped groove 14, then the screwdriver is twisted to drive the rotating block 18 to rotate, the rotating block 18 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the threaded column 16 to rotate, since the threaded column 16 is threadedly connected with the threaded block 17, and the tapered block 9 is in sliding connection with the cavity 5, the threaded column 16 drives the threaded block 17 to move when the threaded column 16 rotates, and then the threaded block 17 drives the tapered block 9 to move.
[0023] In this scheme, the ends of the self-tapping column 1 and the anti-skid column 6 are tapered, which facilitates the self-tapping of the self-tapping screw and the insertion of the anti-skid column 6 into the self-tapping object, and the cross-shaped groove 14 is provided with an anti-skid pad, which avoids the slippage of the screwdriver and the cross-shaped groove 14 on the rotating block 18, and improves the self-tapping ability of the self-tapping screw.
[0024] Working principle: when self-tapping, the screwdriver is first inserted into the connecting position of the nut 4 and the cross-shaped groove 14 on the rotating block 18, then the screwdriver is twisted to drive the nut 4 and the rotating block 18 to rotate, the self-tapping effect is generated by the self-tapping column and the spiral piece 2, after the screw is tightened, the cross-shaped screwdriver is inserted into the cross-shaped groove 14 on the rotating block 18, then the screwdriver is twisted to drive the rotating block 18 to rotate, the rotating block 18 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the threaded column 16 to rotate, since the threaded column 16 is threadedly connected with the threaded block 17, and the tapered block 9 is in sliding connection with the cavity 5, the threaded column 16 drives the threaded block 17 to move when the threaded column 16 rotates, and then the threaded block 17 drives the tapered block 9 to move, the downward movement of the tapered block 9 extrudes the fixed column 12, the extrusion drives the anti-skid column 6 to slide outward, and then the anti-skid column 6 is inserted into the material, the anti-skid column 6 limits the screw, so that the screw cannot rotate and move after being tightened, and then the screw is prevented from slipping off.
[0025] When the screw is disassembled, the cross screwdriver is twisted reversely to make the rotating block 18 rotate reversely, so the rotating shaft 15 drives the threaded column 16 to rotate reversely, at this time the threaded block 17 drives the conical block 9 to move reversely, because the conical block 9 is connected with the fixed column 12 through the moving groove 10 and the moving column 11, so after the conical block 9 moves reversely, the fixed column 12 drives the anti-skid column 6 to move reversely, so the anti-skid column 6 is separated from the material and stored in the screw, then continue to twist reversely, at this time because the conical block 9 cannot continue to move, at this time continue to twist reversely the rotating block 18 will make the rotating block 18 rotate with the screw nut 4 at the same time, so that the screw rotates reversely and is disassembled.
[0026] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying that these entities or actions are in any way mutually exclusive or directional.
[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A slip-resistant, cross-point head self-tapping screw, characterized by, Include: Self-tapping column (1), the outer side of the self-tapping column (1) is fixedly connected with the spiral piece (2), the end of the self-tapping column (1) is fixedly connected with the connecting column (3), the end of the connecting column (3) is fixedly connected with the nut (4), the self-tapping column (1) and the connecting column (3) are provided with cavities (5) inside, a plurality of groups of anti-skid columns (6) are mounted in the cavities (5) inside and are in sliding connection with the connecting column (3), the connecting column (3) is provided with a sliding groove (7) matched with the anti-skid column (6), the nut (4) is provided with a sliding member (8) for driving the anti-skid column (6) to slide, and the sliding member (8) extends into the cavity (5).
2. A slip-resistant spider head self-tapping screw as defined in claim 1, wherein: The sliding member (8) includes a tapered block (9) mounted in the cavity (5), the tapered block (9) is in sliding connection with the inner wall of the cavity (5), and a plurality of groups of moving grooves (10) are formed in the tapered block (9), the moving grooves (10) are in sliding connection with moving columns (11), the moving columns (11) are fixedly connected with fixed columns (12), a plurality of groups of the fixed columns (12) are respectively fixedly connected with a plurality of groups of the anti-skid columns (6), and the tapered block (9) is connected with a moving member (13) for driving the tapered block (9) to move.
3. A slip-resistant spider head self-tapping screw as defined in claim 2, wherein: The moving member (13) includes a rotating block (18) in rotating connection with the nut (4), the rotating block (18) is provided with a cross-shaped groove (14), the cross-shaped groove (14) extends to the nut (4), and the bottom end of the rotating block (18) is fixedly connected with a rotating shaft (15), the end of the rotating shaft (15) is fixedly connected with a threaded column (16) in sliding connection with the tapered block (9), and the outer side of the threaded column (16) is threadedly connected with a threaded block (17) fixedly connected with the tapered block (9).
4. A slip-resistant spider head self-tapping screw as defined in claim 3, wherein: The end of the self-tapping column (1) and the anti-skid column (6) is conical.
5. A slip-resistant spider head self-tapping screw as defined in claim 4, wherein: The cross-shaped groove (14) is provided with an anti-skid pad inside.