CN210739076U

CN210739076U - Screw nail

Info

Publication number: CN210739076U
Application number: CN201921241266.XU
Authority: CN
Inventors: 黄志英
Original assignee: Haiyan Tuanjie Standard Parts Factory
Current assignee: Haiyan Tuanjie Standard Parts Factory
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-06-12
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a screw, its technical scheme main points are be equipped with on the spiral shell head one side and extend the piece, be equipped with on the extension piece and supply screw rod male fixed slot, the tank bottom of fixed slot extends to on the spiral shell head, it is oval to extend a cross sectional shape, be equipped with four first enhancement strips in the extension piece, four first enhancement strips are arranged into the # -shaped form, and two first enhancement strips that are parallel to each other in four first enhancement strips run through the screw rod, be equipped with four second enhancement strips in the spiral shell head, four second enhancement strips are arranged into the # -shaped form, be equipped with the guide arm in the spiral shell head, in the embedding screw rod of guide arm one end, the utility model aims to provide a screw difficult to twist-off and non-deformable.

Description

Screw nail

Technical Field

The utility model relates to a screw technical field, more specifically say, it relates to a screw.

Background

The traditional screw is screwed through the threads of the screw rod part to achieve the locking effect, the screw is screwed through a hand or a wrench, the screw is screwed through a tool and generally needs to be screwed, and particularly, the joint of the screw rod and the screw head can bear large twisting force and is easy to twist off and deform.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a be difficult to twist off and non-deformable's screw.

In order to achieve the above purpose, the utility model provides a following technical scheme: a screw comprises a screw rod and a screw head, and is characterized in that: be equipped with the extension piece on spiral shell head one side, be equipped with on the extension piece and supply screw rod male fixed slot, the tank bottom of fixed slot extends to on the spiral shell head, extension piece cross sectional shape is oval, be equipped with four first enhancement strips in the extension piece, four first enhancement strips are arranged into the # -shaped form, and two first enhancement strips that are parallel to each other in four first enhancement strips run through the screw rod, be equipped with four second enhancement strips in the spiral shell head, four second enhancement strips are arranged into the # -shaped form, be equipped with the guide arm in the spiral shell head, in the guide arm one end embedding screw rod.

Through adopting above-mentioned technical scheme, utilize the design of extension piece, form an outside enhancement effect in screw rod and spiral shell head junction, then utilize the mode of arranging of four first enhancement strips, utilize wherein two first enhancement strips directly to run through the screw rod, associate with the screw rod when realizing rotatory, form whole atress, reduce the concentration of stress and shearing force, the design of strip is strengthened to four rethread second, improve the internal strength of its spiral shell head, and through the guide arm, make spiral shell head and screw rod form and associate, reach anti deformation effect simultaneously, play the dispersion of power, and then reach its good anti deformation effect, reduce cracked problem and appear.

The utility model discloses further set up to: the cross positions of the four second reinforcing strips are first cross points, the number of the first cross points is four, the cross positions of the four first reinforcing strips are second cross points, the number of the second cross points is four, the four first cross points correspond to the four second cross points respectively, arc groups are arranged on the screw heads, and two ends of each arc group are abutted to the first cross points and the second cross points respectively.

Through adopting above-mentioned technical scheme, utilize the arc group to connect two relative points like this for four first enhancement strips and four second enhancement strips form a correlation, then through the design of arc group, can vertically play the anti-deformation effect, also form whole resistance to deformation simultaneously.

The utility model discloses further set up to: the arc group is two arc strips with opposite arc openings.

Through adopting above-mentioned technical scheme, utilize the opposite arc strip of arc, realize the cooperation of opposite effort and improve the resistance to deformation ability.

Drawings

Fig. 1 is a schematic bottom view of the embodiment of the present invention.

Fig. 2 is a schematic diagram of an internal structure of an embodiment of the present invention.

Fig. 3 is a schematic diagram of an internal structure of an embodiment of the present invention.

Fig. 4 is a schematic diagram of an internal structure of an embodiment of the present invention.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 4.

A screw comprises a screw rod 201 and a screw head 101, and is characterized in that: be equipped with on spiral shell head 101 one side and extend piece 301, be equipped with on the piece 301 that extends and supply screw rod 201 male fixed slot, the tank bottom of fixed slot extends to on the spiral shell head 101, it is oval to extend piece 301 cross sectional shape, be equipped with four first enhancement strips 401 in the piece 301 that extends, four first enhancement strips 401 are arranged into the # -shaped form, and two first enhancement strips 401 that are parallel to each other in four first enhancement strips 401 run through screw rod 201, be equipped with four second in the spiral shell head 101 and strengthen strip 501, four second enhancement strips 501 are arranged into the # -shaped form, be equipped with guide arm 701 in the spiral shell head 101, in guide arm 701 one end embedding screw rod 201.

Through adopting above-mentioned technical scheme, utilize the design of extension piece 301, form an outside reinforcing effect in screw rod 201 and spiral shell head 101 junction, then utilize four first enhancement strip 401's the mode of arranging, utilize wherein two first enhancement strip 401 directly run through screw rod 201, it is relevant with screw rod 201 when realizing the rotation, form whole atress, reduce the concentration of stress and shearing force, the design of four second enhancement strips 501 of rethread, improve its spiral shell head 101's internal strength, and through guide arm 701, make spiral shell head 101 and screw rod 201 form the relevance, reach resistance to deformation effect simultaneously, play the dispersion of power, and then reach its good resistance to deformation effect, it appears to reduce cracked problem.

The utility model discloses further set up to: the four second reinforcing strips 501 are intersected with each other to form a first intersection 502, the number of the first intersections 502 is four, the intersection of the four first reinforcing strips 401 is a second intersection 402, the number of the second intersections 402 is four, the four first intersections 502 correspond to the four second intersections 402, an arc group is arranged on the screw head 101, and two ends of the arc group are abutted against the first intersection 502 and the second intersection 402 respectively.

Through adopting above-mentioned technical scheme, utilize the arc group to connect two relative points like this for four first enhancement strips 401 and four second enhancement strips 501 form a correlation, then through the design of arc group, can vertically play the anti-deformation effect, also form whole resistance to deformation simultaneously.

The utility model discloses further set up to: the arc group is two arc strips 601 with opposite arc openings.

By adopting the technical scheme, the arc-shaped strips 601 with opposite arcs are utilized to realize the matching of opposite acting forces and improve the deformation resistance.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. A screw comprises a screw rod and a screw head, and is characterized in that: be equipped with the extension piece on spiral shell head one side, be equipped with on the extension piece and supply screw rod male fixed slot, the tank bottom of fixed slot extends to on the spiral shell head, extension piece cross sectional shape is oval, be equipped with four first enhancement strips in the extension piece, four first enhancement strips are arranged into the # -shaped form, and two first enhancement strips that are parallel to each other in four first enhancement strips run through the screw rod, be equipped with four second enhancement strips in the spiral shell head, four second enhancement strips are arranged into the # -shaped form, be equipped with the guide arm in the spiral shell head, in the guide arm one end embedding screw rod.

2. A screw as claimed in claim 1, wherein: the cross positions of the four second reinforcing strips are first cross points, the number of the first cross points is four, the cross positions of the four first reinforcing strips are second cross points, the number of the second cross points is four, the four first cross points correspond to the four second cross points respectively, arc groups are arranged on the screw heads, and two ends of each arc group are abutted to the first cross points and the second cross points respectively.

3. A screw as claimed in claim 2, wherein: the arc group is two arc strips with opposite arc openings.