CN217401391U

CN217401391U - Connecting piece self tapping screw

Info

Publication number: CN217401391U
Application number: CN202220328361.9U
Authority: CN
Inventors: 路啸天
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-09-09
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a connecting piece self tapping screw, including the screw rod, the one end of screw rod is equipped with the toper point portion, the other end integrated into one piece of screw rod has the head, and the head is equipped with the cylinder groove, and it has the dress trim cover to be equipped with spiral groove, interior spiral tooth on the cell wall in cylinder groove swivelling joint, and the side of this dress trim cover is connected with interior spiral groove along being equipped with the helicla flute, is equipped with the slot in the cylinder groove. The utility model provides a connecting piece self tapping screw, after the part of carrying out erection joint product, it exposes setting up the dress trim cover through on product surface, can play the effect of hiding slot and protection slot, does not influence the pleasing to the eye on product surface.

Description

Connecting piece self tapping screw

Technical Field

The utility model belongs to the technical field of hardware fitting technique and specifically relates to a connecting piece self tapping screw is related to.

Background

The self-tapping screw is widely applied to connection and fixation in the manufacturing industry fields of furniture, decoration, equipment and the like. By screwing the head of the screw, the screw teeth on the screw can be automatically tapped and screwed on the surfaces of wood boards, plastic boards and the like. And an independent hole opening process is omitted, and the production and installation efficiency is improved. For some applications, the head of the screw may be exposed to the surface after the screw is connected to the plate or component. The straight socket or the cross socket at the head part is exposed outside and is matched with the outer surface of a product, so that the beauty of the surface of the product is easily influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a connecting piece self tapping screw, after the part of carrying out the erection joint product, it exposes setting up the dress trim cover through on product surface, can play the effect of hiding slot and protection slot, does not influence the pleasing to the eye on product surface.

In order to solve the technical problem, the utility model provides a technical scheme is: a connecting piece self-tapping screw comprises a screw rod, wherein a conical tip portion is arranged at one end of the screw rod, a head portion is integrally formed at the other end of the screw rod, a cylindrical groove is formed in the head portion, internal spiral teeth are arranged on the groove wall of the cylindrical groove, a decoration cover is rotatably connected to the inner spiral teeth in a rotating mode, a spiral groove is formed in the side edge of the decoration cover and connected with the internal spiral teeth, and inserting grooves are formed in the cylindrical groove.

By adopting the technical scheme, after the self-tapping screw is connected with the components such as the mounting plate and the like, the decorative cover is connected in the cylindrical groove, and the decorative cover can be provided with colors, patterns and the like matched with the surface of the product, so that the beauty of the surface of the product is improved; the slot comprises a straight line, a cross socket and an inner hexagon or an outer hexagon, is arranged in the slot, is convenient to find the insertion position accurately when a screwdriver or a spanner is inserted, is convenient to operate, is not exposed in the air after the installation is finished, keeps the surface dry and not wet, reduces oxidation and corrosion, and prolongs the service life. The internal spiral tooth matches with the helicla flute, forms the dress trim cover and can dismantle the connection, and the dress trim cover can be dismantled in use, exposes the helicla flute, can unscrew and dismantle this connecting piece self tapping screw, reuse and the maintenance of convenient product.

Further, the head part is divided into a truncated cone and a cylinder. The cylindrical body is provided with a cylindrical groove, the cylindrical groove can extend to the truncated cone, and the conical surface of the truncated cone is tightly propped against parts such as plates and the like when the self-tapping screw is spirally inserted into the plate surface.

Furthermore, the cone frustum is of a solid structure, a cone seat is arranged in a cylindrical groove formed in the cone frustum, and the inserting groove is formed in the cone seat. The conical seat can be separately and independently arranged, so that the slot can be conveniently processed, and the conical seat can be integrally formed with the conical table when arranged in the cylindrical groove.

Further, the diameter of the trim cover is greater than or equal to the diameter of the head. The diameter of the decorative cover is larger than that of the head, so that the head can be completely covered and attached to the surface of a product, and the attractiveness of the surface is improved.

Furthermore, the screw rod is provided with a spiral surrounding screw thread. The screw thread is coiled on the screw rod and is cut into the inner part of the connecting part during screwing in for locking the connecting part.

The utility model discloses the beneficial effect who gains is: through setting up the dress trim cover, cover the slot, still can set up pattern, colour, decorative pattern etc. with product surface assorted on dress trim cover surface, promote the decorative performance of adopting the surface of tapping screw connection product back. The dress trim cover covers the cylinder groove, still has the slot in the protection groove and avoids it by oxidation, keeps inside dry, and it is long when improving the use of screw.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention with the decorative cover removed;

fig. 4 is a schematic structural view of the decorative cover of the present invention.

Description of reference numerals: the screw is 1, 2 is a conical tip, 3 is a head, 11 is a screw thread, 31 is a cylindrical groove, 32 is an internal spiral tooth, 33 is a decorative cover, 34 is a spiral groove, 35 is an insertion groove, 36 is a cone frustum, 37 is a cylinder, and 38 is a cone base.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Referring to fig. 1 to 4, a self-tapping screw for a connecting piece comprises a screw rod 1, wherein one end of the screw rod 1 is provided with a conical tip portion 2, the other end of the screw rod 1 is integrally formed with a head portion 3, the head portion 3 is provided with a cylindrical groove 31, the wall of the cylindrical groove 31 is provided with internal spiral teeth 32, the internal spiral teeth 32 are rotatably connected with a decorative cover 33, the side edge of the decorative cover 33 is provided with a spiral groove 34 connected with the internal spiral teeth 32, and a slot 35 is formed in the cylindrical groove 31. The spiral groove 34 is rotatably and detachably connected with the inner spiral teeth 32, so as to facilitate the detachment and replacement of the screw, when detaching, the decoration cover 33 is unscrewed to expose the slot 35, a tool such as a screwdriver or an allen key can be inserted to screw the slot 35, the screw can be screwed out, and when the same installation connection is performed, the screwdriver or the allen key can be inserted into the slot 35, so that the screw can be screwed down. In the installation, toper point portion 2 pierces the object surface, drives through the rotation of screw rod 1, struts the hole of one and toper point portion 2 adaptation on the object surface, and at the screw-up in-process, this hole is continuous to extend towards the inside of object, and the screw thread 11 on screw rod 1 surface is continuous to form the spiral fluting of looks adaptation locking at the pore wall cutting in hole.

The head 3 is divided into a truncated cone 36 and a cylinder 37. The cone frustum 36 is a solid structure, a cone base 38 is disposed in a cylindrical groove 31 formed in the cone frustum, and the slot 35 is disposed on the cone base 38.

The diameter of the decorative cover 33 is greater than or equal to the diameter of the head 3. The diameter of the decoration cover 33 is larger than or equal to the diameter of the head 3, so that the decoration cover 33 can cover the surface of the head 3, and the surface of the decoration cover 33 is combined with the surface of the product after the installation connection is completed. The screw rod 1 is provided with a spiral encircling thread 11. In the process of screwing the self-tapping screw, the screw thread 11 cuts the surface of an object and cuts out a spiral groove matched with the shape of the spirally-surrounded screw thread so as to screw the self-tapping screw of the self-connecting piece.

In summary, the present invention has been made to practical samples according to the description and the drawings, and after a plurality of use tests, the utility model can be proved to achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only used to conveniently illustrate the present invention, and are not to the limit of the present invention in any form, and any person who knows commonly in the technical field has, if not in the scope of the technical features of the present invention, utilize the present invention to make the equivalent embodiment of local change or modification, and not to break away from the technical features of the present invention, and all still belong to the technical features of the present invention.

Claims

1. The utility model provides a connecting piece self tapping screw, includes screw rod (1), its characterized in that: the one end of screw rod (1) is equipped with toper point portion (2), the other end integrated into one piece of screw rod (1) has head (3), head (3) are equipped with cylinder groove (31), are equipped with interior helical tooth (32), interior helical tooth (32) at the cell wall of cylinder groove (31) and rotate the connection and have dress trim cover (33), and the side of this dress trim cover (33) is along being equipped with spiral groove (34) and being connected with interior helical tooth (32), is equipped with slot (35) in cylinder groove (31).

2. The attachment self-tapping screw of claim 1, wherein: the head (3) is divided into a truncated cone (36) and a cylinder (37).

3. The attachment self-tapping screw of claim 2, wherein: the cone frustum (36) is of a solid structure, a cone seat (38) is arranged in a cylindrical groove (31) formed in the cone frustum, and the inserting groove (35) is formed in the cone seat (38).

4. The attachment self-tapping screw of claim 1, wherein: the diameter of the decorative cover (33) is larger than or equal to that of the head (3).

5. The attachment self-tapping screw of claim 1, wherein: the screw (1) is provided with spirally-surrounding screw teeth (11).