CN218294106U - Anti-skid self-tapping screw for automobile - Google Patents

Abstract

The utility model discloses an anti-skid thread self-tapping screw for automobiles, which comprises a cross groove positioned on the top surface and a tip positioned on the bottom, wherein a rubber part is arranged in the cross groove, and the rubber part and the cross groove are designed in a copying way, and a cutter groove for embedding a screwdriver is arranged in the rubber part; the outer wall of the tip end is provided with a protective structure which hides the self-tapping screw, when the self-tapping screw is screwed, the screwdriver head is directly embedded into the cutter groove and is extruded with the rubber piece, the friction force between the screwdriver and the self-tapping screw is increased by utilizing the elasticity of the rubber piece, the phenomenon of thread slipping is reduced, the force for screwing the screwdriver is increased, and the service life of the self-tapping screw is ensured; meanwhile, the tip is wrapped by the protective structure, so that the tip is prevented from being touched by a human body in the taking process, and the use safety is improved; meanwhile, when the self-tapping screw is screwed, the cylinder with the diameter larger than the tip is used for directly opening the left cover sheet and the right cover sheet of the protective structure, so that the left cover sheet and the right cover sheet are separated from each other, and the self-tapping screw can be screwed into an object subsequently.

Description

Anti-skid thread self-tapping screw for automobile

Technical Field

The utility model relates to a fastener technical field specifically is an antiskid silk self tapping screw for car.

Background

Self-tapping screws generally refer to pointed, coarse-toothed, hard-textured screws, a special self-tapping screw for tapping metal holes is called a tap, self-tapping screws are used for non-metal, softer metals, without underpinning and tapping, self-tapping screws: the hole drilled is a hole without tapping, the used screw is different from the general screw, the head is sharp, the pitch is larger, the screw is a little like a chipless screw tap and can be directly screwed in without tapping, and metal and plastic generally use the method, and the method can tap, drill, extrude and extrude corresponding threads on a solidified material by the threads of the solidified material, so that the solidified material is in tight fit with the threads.

In the process of automobile assembly, the self-tapping screw is a common fastener, but when the self-tapping screw is used, the existing self-tapping screw is provided with a tip, and a hand can easily touch the tip when the self-tapping screw is taken, so that the hand can be accidentally poked, and workers can be injured; in addition, the self-tapping screw has the phenomenon of cross groove abrasion after being used for a long time, and the screw is easy to slip when being disassembled and assembled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an antiskid thread self-tapping screw for automobiles, which aims to solve the problems that the existing self-tapping screw provided by the prior art has a tip, and the hand is easy to touch the tip when taking the screw, so that the hand can be poked accidentally, and workers are injured; in addition, the self-tapping screw has the problems that the cross slot is abraded after being used for a long time, and the screw is easy to slip when being disassembled and assembled.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-skid thread self-tapping screw for an automobile comprises a cross groove and a tip, wherein the cross groove is located in the top surface, the tip is located at the bottom, a rubber piece is arranged in the cross groove, the rubber piece and the cross groove are in a copying design, and a cutter groove for a screwdriver to be embedded into is formed in the rubber piece; the outer wall of the tip is provided with a protective structure for hiding the tip.

As a further preferable mode of the present invention, the rubber member is provided with chamfers on both top edges of the siping.

As a further preferred of the technical scheme, the anti-seepage device further comprises a column body and a screw cap which are fixedly connected, wherein the top of the column body is sleeved with the anti-seepage pad, and the anti-seepage pad is simultaneously connected with the bottom surface of the screw cap.

As a further preferred aspect of the present technical solution, the anti-permeation pad is a ring body made of rubber, and the inner diameter of the ring body is smaller than the diameter of the nut, and a thin edge is provided at the inner side of the ring body.

As a further preferred aspect of the present technical solution, the protection structure includes a left cover piece and a right cover piece symmetrically attached to the outer surface of the tip, a thin sheet is disposed between the left cover piece and the right cover piece, and the thin sheet is provided with a breakable line.

The utility model provides an antiskid silk self tapping screw for car possesses following beneficial effect:

(1) The utility model discloses an embedding anastomotic rubber spare with it in the cross recess of nut to set up the sword groove that supplies the screwdriver embedding in the inside of rubber spare, when twisting this self tapping screw, the direct embedding sword inslot of screwdriver bit takes place the extrusion with the rubber spare, utilizes the elasticity of rubber spare to increase the frictional force of screwdriver and this self tapping screw, reduces smooth silk phenomenon, increases the dynamics of twisting the screw sword simultaneously, has guaranteed self tapping screw's life.

(2) The utility model discloses a cup joint the ring body of rubber material at the top of cylinder, twist the back at self-tapping screw, its nut can compress tightly on the ring body, seals the hole of boring, avoids liquid to get into to downthehole from the gap, plays the effect that the prevention of seepage passed through.

(3) The utility model arranges the protective structure on the outer surface of the tip end, and wraps the tip end by using the protective structure, thereby avoiding the human body from touching the tip end in the taking process, and further improving the use safety; meanwhile, when the self-tapping screw is screwed, the cylinder with the diameter larger than the tip is used for directly opening the left cover sheet and the right cover sheet of the protective structure, so that the left cover sheet and the right cover sheet are separated from each other, and the self-tapping screw can be screwed into an object later.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the ring body structure of the present invention;

FIG. 3 is a schematic view of the rubber member of the present invention;

fig. 4 is a schematic view of the protection structure of the present invention;

in the figure: 1. a cross groove; 2. a tip; 3. a cylinder; 4. a nut; 5. a rubber member; 6. a cutter groove; 7. chamfering; 8. a ring body; 9. a thin edge; 10. a protective structure; 101. a left cover sheet; 102. a right cover sheet; 103. a sheet; 104. easy to break lines.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The utility model provides a technical scheme: in the present embodiment, as shown in fig. 1 and fig. 3, the self-tapping screw includes a cylinder 3 and a nut 4 fixed together, wherein a cross-shaped groove 1 is provided on a top surface of the nut 4, and the cross-shaped groove 1 is used for matching with a screwdriver, in the present technical solution, a rubber member 5, which is designed in a shape similar to the cross-shaped groove 1, is provided in the cross-shaped groove 1, and the connection relationship between the two can be, but not limited to, bonding and interference plugging; the bonding mode needs to coat a layer of glue on the inner surface of the cross groove 1, and the rubber piece 5 is bonded in the cross groove 1 by the glue; the interference insertion mode is to extrude the rubber piece 5 into the cross groove 1;

in addition, the top surface of the rubber part 5 is provided with a cutter groove 6 extending from outside to inside so that the cutter head of a screwdriver can be embedded into the cutter groove 6, and a chamfer 7 is arranged on the inner top edge of the rubber part 5 so that the cutter head of the screwdriver can extend into the cutter groove 6; when the self-tapping screw is screwed, the screwdriver head is directly embedded into the cutter groove 6 and is extruded with the rubber piece 5, the friction force between the screwdriver and the self-tapping screw is increased by utilizing the elasticity of the rubber piece 5, the phenomenon of screw slipping is reduced, the force for screwing the screwdriver is increased, and the service life of the self-tapping screw is ensured.

As shown in fig. 1 and 4, a column 3 is provided on the bottom surface of the nut 4, and the bottom of the column 3 has a tip 2, and in order to hide the tip 2, a protective structure 10 is provided on the outer surface of the tip 2, specifically: the protective structure 10 comprises a left cover sheet 101 and a right cover sheet 102 which encircle and are attached to the outer surface of the tip 2, wherein a space is reserved on two sides of the left cover sheet 101 and the right cover sheet 102, the left cover sheet 101 and the right cover sheet 102 are fixed by a sheet 103 at the space, and the sheet 103 can be connected with the left cover sheet 101 and the right cover sheet 102 in an adhesive manner; meanwhile, the sheet 103 is provided with easy-breaking lines 104 along the center line, the easy-breaking lines 104 are formed by a plurality of through grooves which are distributed linearly, the connection strength of the center line of the sheet 103 is reduced, and meanwhile, abutting blocks are integrally formed at the bottoms of the left cover sheet 101 and the right cover sheet 102; in specific implementation, the protective structure 10 wraps the tip 2, so that a human body is prevented from touching the tip 2 in the taking process, and the use safety is improved; when the self-tapping screw is used, the abutting block is extruded on the surface of an object, the contact area between the abutting block and the object is increased, so that the tip 2 of the self-tapping screw is difficult to displace from the abutting point of the object, and the use stability is ensured; after the self-tapping screw passes through the object, its cylinder 3 also removes to the object, and the piece that leans on still stays the surface at this moment, because the diameter of cylinder 3 is far greater than the interval of left cover piece 101 and right cover piece 102, consequently, cylinder 3 is passing the object in-process, can crowd left cover piece 101 and right cover piece 102 apart for thin slice 103 breaks away from left cover piece 101 and right cover piece 102 or the disconnection of easy broken string 104, then separates left cover piece 101 and right cover piece 102 from pointed end 2, can not interfere the normal use of self-tapping screw, and simple structure, it is with low costs.

As shown in fig. 1 and 2, a ring body 8 made of rubber is sleeved on the top of the cylinder 3, the inner diameter of the ring body 8 is smaller than the diameter of the nut 4, and a thin edge 9 is arranged on the inner side of the ring body 8, so that when the ring body 8 is sleeved on the cylinder 3, the thin edge 9 can be deformed more greatly so as to be sleeved on the cylinder 3 from the nut 4; after the self-tapping screw is screwed in, the nut 4 can be tightly pressed on the ring body 8, then the ring body 8 is extruded to generate deformation, the drilled hole is sealed by the deformation of the ring body 8, and liquid is prevented from entering the hole from the gap, so that the anti-seepage effect is achieved.

The utility model provides an antiskid silk self tapping screw for car, concrete theory of operation as follows: the rubber piece 5 which is matched with the cross groove 1 of the screw cap 4 is embedded into the cross groove 1, the cutter groove 6 for embedding the screwdriver is arranged in the rubber piece 5, when the self-tapping screw is screwed, the screwdriver head is directly embedded into the cutter groove 6 and is extruded with the rubber piece 5, the friction force between the screwdriver and the self-tapping screw is increased by utilizing the elasticity of the rubber piece 5, the phenomenon of screw slipping is reduced, meanwhile, the force for screwing the screw driver is increased, and the service life of the self-tapping screw is ensured; the top of the column body 3 is sleeved with a ring body 8 made of rubber, after the self-tapping screw is screwed in, the screw cap 4 of the column body is tightly pressed on the ring body 8 to seal the drilled hole, so that liquid is prevented from entering the hole from a gap, and an anti-seepage effect is achieved; the protective structure 10 is arranged on the outer surface of the tip 2, and the tip 2 is wrapped by the protective structure 10, so that a human body is prevented from touching the tip 2 in the taking process, and the use safety is improved; meanwhile, when the tapping screw is screwed, the left cover sheet 101 and the right cover sheet 102 of the protective structure 10 are directly spread by the column 3 with the diameter larger than that of the tip 2, so that the left cover sheet and the right cover sheet are separated from each other, and the subsequent tapping screw is screwed into an object.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an antiskid silk self tapping screw for car, is including cross recess (1) that are located the top surface and pointed end (2) that are located the bottom, its characterized in that: a rubber part (5) is arranged in the cross groove (1), the rubber part (5) and the cross groove (1) are designed in a copying manner, and a cutter groove (6) for embedding a screwdriver is arranged in the rubber part (5); the outer wall of the tip (2) is provided with a protective structure (10) for hiding the tip.

2. The self-tapping screw as recited in claim 1, wherein: and chamfers (7) are arranged on the top edges of the cutter grooves (6) of the rubber parts (5).

3. The antiskid self-tapping screw for the automobile according to claim 1, wherein: the anti-seepage device is characterized by further comprising a column body (3) and a nut (4) which are fixedly connected, wherein the anti-seepage pad is sleeved at the top of the column body (3), and the anti-seepage pad is simultaneously connected with the bottom surface of the nut (4).

4. The self-tapping screw as recited in claim 3, wherein: the anti-seepage pad is a ring body (8) made of rubber, the inner diameter of the ring body (8) is smaller than the diameter of the screw cap (4), and meanwhile, a thin edge (9) is arranged on the inner side of the ring body (8).

5. The self-tapping screw as recited in claim 1, wherein: protective structure (10) are including left cover piece (101) and right cover piece (102) of symmetry laminating on pointed end (2) surface, be provided with between left cover piece (101) and right cover piece (102) thin slice (103), be provided with easily broken line (104) on thin slice (103).

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