CN212536377U

CN212536377U - Screw hole structure capable of preventing screw from being skewed

Info

Publication number: CN212536377U
Application number: CN202020577140.6U
Authority: CN
Inventors: 陈圣旺; 廖加亮; 王维乐; 夏建平
Original assignee: Fujian Scud Power Technology Co Ltd
Current assignee: Fujian Scud Power Technology Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-02-12
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to a can prevent crooked screw hole structure of screw, including the screw hole, the screw hole inner wall has at least three structure the same and is located the arc bellying on same circumference, and the diameter ratio of the terminal place circle of all arc bellying is 0~0.2mm big with the screw diameter of screw hole adaptation. The utility model discloses can prevent that the crooked screw hole structural design of screw is reasonable, and the practicality is strong, and simple structure makes the screw can keep vertical state in the screw hole before not locking, can not appear crooked condition, makes the nut of wholesale head easily aim at the screw, improves the efficiency of locking the screw.

Description

Screw hole structure capable of preventing screw from being skewed

Technical Field

The utility model relates to a can prevent crooked screw hole structure of screw.

Background

The battery shell needs to be fixed by a screw, a certain gap is reserved between the screw through hole and the screw, and when the screw is long, the screw is inclined in the screw hole. When the automatic equipment locks the screw, the screw is inclined, and the screw locking fails because the screw head on the equipment cannot align with the screw cap.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a simple structure, the practicality is strong can prevent the crooked screw hole structure of screw, makes the screw can not appear the crooked condition in the screw hole before not locking, improves the efficiency of locking the screw.

The utility model discloses a following scheme realizes: the utility model provides a can prevent crooked screw hole structure of screw, includes the screw hole, screw hole inner wall has at least three structures and the same and lies in the arc bellying on same circumference, and the diameter ratio of the terminal place circle of all arc bellying is 0~0.2mm bigger than the screw diameter of screw hole adaptation.

Furthermore, the thickness of the arc-shaped protruding part is 0.2-0.5 mm.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses can prevent that the crooked screw hole structural design of screw is reasonable, and the practicality is strong, and simple structure makes the screw can keep vertical state in the screw hole before not locking, can not appear crooked condition, makes the nut of wholesale head easily aim at the screw, improves the efficiency of locking the screw.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to specific embodiments and related drawings.

Drawings

Fig. 1 is a schematic view of a battery case having a screw hole structure according to the present invention;

FIG. 2 is a schematic view of a screw hole structure according to an embodiment of the present invention;

the reference numbers in the figures illustrate: the 100-screw hole, the 110-arc bulge and the 120-arc bulge are located on the circle.

Detailed Description

As shown in fig. 1 to 2, a screw hole structure capable of preventing a screw from being skewed includes a screw hole 100, an inner wall of the screw hole 100 has at least three arc-shaped protrusions 110 having the same structure and located on the same circumference, and a diameter of a circle where ends of all the arc-shaped protrusions 110 are located is 0 to 0.2mm larger than a diameter of a screw adapted to the screw hole; the contact between the arc-shaped protruding part 110 and the screw is line contact, and the screw can keep a vertical state in the screw hole before being unlocked due to the fact that the support of the arc-shaped protruding part is limited, the situation of deflection cannot occur, the screw cap of the screw is easily aligned to the screwdriver head, and the screw locking efficiency is improved.

In the present embodiment, the number of the arc-shaped protrusions 110 may be 3, 4, 5, 6.

In the embodiment, the thickness of the arc-shaped bulge part is 0.2-0.5 mm; this prevents the contact surface between the screw and the arc-shaped protrusions from being too large, and allows the screw to easily pass through the middle of several arc-shaped protrusions without skewing.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a can prevent askew screw hole structure of screw which characterized in that: including the screw hole, the screw hole inner wall has at least three structures and the same and arc bellying that is located on same circumference, and the diameter ratio of the terminal place circle of all arc bellyings is 0~0.2mm bigger than the screw diameter of screw hole adaptation.

2. The screw hole structure capable of preventing the skew of a screw according to claim 1, wherein: the thickness of the arc-shaped protruding part is 0.2-0.5 mm.