CN220956384U

CN220956384U - Fastening screw

Info

Publication number: CN220956384U
Application number: CN202322558222.2U
Authority: CN
Inventors: 尹思远; 陈卢超; 郑敏; 杨方瑜
Original assignee: Dongguan Hanjin Hardware Products Co ltd
Current assignee: Dongguan Hanjin Hardware Products Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-05-14
Anticipated expiration: 2033-09-19

Abstract

The utility model discloses a fastening screw in the field of screws, which comprises a screw head and a screw rod, wherein the screw head consists of a first connecting part and a second connecting part which are integrally connected, the outer diameter of the second connecting part is smaller than that of the first connecting part, a gasket with the outer diameter larger than that of the first connecting part is sleeved on the outer side surface of the second connecting part, the gasket is tightly attached to the bottom of the first connecting part, at least two protruding blocks embedded into the first connecting part for fixing are arranged, and the screw rod is integrally connected to the bottom of the second connecting part. The detachable gasket is added at the position of the screw head, the stress area of the screw after being driven is enlarged by the gasket, a more stable structure is formed, the phenomenon that the screw cannot be fixed due to overlarge hole positions at the position of the driven screw is avoided, and the flexibility is high.

Description

Fastening screw

Technical Field

The utility model relates to the technical field of screws, in particular to a fastening screw.

Background

The screw is a tool for fastening the parts of the device step by utilizing the physical and mathematical principles of the inclined circular rotation and friction force of the object. Screws are a common way of speaking fasteners, daily spoken words. Screws are an indispensable industrial necessity in daily life: very small screws for use in cameras, spectacles, watches, electronics, etc.; general screws for televisions, electrical products, musical instruments, furniture, and the like; as for engineering, construction and bridge, large-scale screws and nuts are used; traffic tools, airplanes, electric cars, automobiles and the like are used together by the large screws and the small screws. Screws are an important task in industry, and as long as industry exists on earth, the function of the screw is always important.

However, when the larger hole site is arranged on one surface of the access screw, the top of the inserted screw cannot be fixed at this time, and the screw is easy to shake or loosen after being used for a long time, so that the firmness of the screw is affected.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a fastening screw, which can effectively solve the technical problem that the screw cannot be fixed due to the fact that the hole is too large.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a fastening screw, includes spiral shell head and screw rod, the spiral shell head comprises first connecting portion and the second connecting portion of body coupling, second connecting portion outside diameter is less than first connecting portion, second connecting portion lateral surface cover has the outside diameter to be greater than the gasket of first connecting portion, first connecting portion bottom is hugged closely to the gasket, and is equipped with two at least embedded inside fixed lugs to first connecting portion, screw rod body coupling is in second connecting portion bottom.

Further, a groove with a polygonal structure is formed in the top of the first connecting portion, and a cross groove is further formed in the bottom of the groove.

Further, the thickness of the gasket is equal to the height of the second connecting part, and an anti-slip layer is adhered to the bottom of the gasket.

Further, the protruding blocks are in a symmetrical distribution structure.

Further, at least two clamping grooves which are clamped into the corresponding protruding blocks are formed in the bottom of the first connecting portion.

Further, the outer side face of the screw is provided with threads, and the bottom of the screw is provided with a sharp corner.

Compared with the prior art, the utility model has the beneficial effects that:

The detachable gasket is added at the position of the screw head of the screw, the stress area of the screw after being driven is enlarged by using the gasket, a more stable structure is formed, the phenomenon that the screw cannot be fixed due to overlarge hole positions at the position of the driven screw is avoided, the flexibility is high, the whole structure is simple, the operation is convenient, and the practicability is strong.

Drawings

FIG. 1 is a schematic view showing the whole structure of a fastening screw according to the present utility model;

FIG. 2 is a schematic view of a connection structure between a screw head and a screw rod of a fastening screw according to the present utility model;

FIG. 3 is a schematic view of a fastening screw gasket according to the present utility model;

FIG. 4 is a schematic view of the bottom structure of a screw head of a fastening screw according to the present utility model;

reference numerals in the drawings:

1-screw head, 2-screw rod, 3-gasket, 4-bump, 5-groove, 6-cross groove, 7-anti-slip layer, 8-clamping groove, 9-thread and 10-sharp angle part;

101-first connection, 102-second connection.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-4, the utility model provides a fastening screw, which comprises a screw head 1 and a screw rod 2, wherein the screw head 1 is composed of a first connecting part 101 and a second connecting part 102 which are integrally connected, the screw rod 2 is integrally connected to the bottom of the second connecting part 102, and from the integral structure, a connecting structure is adopted between the screw head 1 and the screw rod 2, after connection, the central shaft positions of the central parts are overlapped, the structures of the screws are more balanced, and the situation of unbalanced force can not occur during rotation.

The outer diameter of the second connecting portion 102 is smaller than that of the first connecting portion 101, the outer side face of the second connecting portion 102 is sleeved with a gasket 3 with the outer diameter larger than that of the first connecting portion 101, the gasket 3 connected to the first connecting portion 102 is of a detachable structure, a user can decide whether to add the gasket 3 according to the environment of using a driving screw, when the driving screw cannot fix the screw well due to the fact that the hole site is too large, the surface stressed area can be enlarged by adding the gasket 3 at the moment, the flexibility of use is better, the hole site of the driving screw needs to be completely covered by the added gasket 3, the thickness of the gasket 3 needs to be consistent with the height of the second connecting portion 102 in order to avoid random movement of the added gasket 3, and an anti-skid layer 7 for improving the friction effect is added at the bottom of the gasket 3.

The gasket 3 is tightly attached to the bottom of the first connecting portion 101, at least two protruding blocks 4 embedded into the first connecting portion 101 and fixed inside are arranged, clamping grooves 8 with the same number as the protruding blocks 4 are also arranged at the bottom of the first connecting portion 101, after the protruding blocks 4 are clamped into the clamping grooves 8, the first connecting portion 101 and the gasket 3 form a synchronous moving state, and meanwhile, in order to balance the balance force after connection between the first connecting portion and the gasket, the protruding blocks 4 are symmetrically distributed or evenly distributed on the gasket 3.

The top of the first connecting portion 101 is provided with a polygonal groove 5, the bottom of the groove 5 is also provided with a cross groove 6, the groove 5 is generally a regular hexagonal groove, and a user can use a hexagonal key matched with the groove 5 to control when driving in a screw, and in addition, the screw can be moved by inserting a cross screwdriver into the cross groove 6 at the bottom of the groove 5.

The outer side surface of the screw rod 2 is provided with threads 9, the bottom of the screw rod 2 is provided with sharp corners 10, the threads 9 are used for fixing the loaded articles or equipment, and the sharp corners 10 at the bottom are used for conveniently driving and fixing the positions of screws.

Compared with the prior art, the technical scheme has the advantages that the detachable gasket 3 is added at the position of the screw head 1, the stressed area of the screw after being driven is enlarged by utilizing the gasket 3, a more stable structure is formed, the phenomenon that the screw cannot be fixed due to overlarge hole positions in the position of the driven screw is avoided, and the novel screw driving device is high in flexibility and practicability.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a fastening screw, includes spiral shell head and screw rod, its characterized in that: the screw head comprises first connecting portion and second connecting portion of body coupling, second connecting portion outside diameter is less than first connecting portion, second connecting portion lateral surface cover has the outside diameter to be greater than the gasket of first connecting portion, the gasket is hugged closely first connecting portion bottom, and is equipped with two at least embedded inside fixed lugs to first connecting portion, screw rod body coupling is in second connecting portion bottom.

2. A fastening screw according to claim 1, wherein: the top of the first connecting part is provided with a groove with a polygonal structure, and the bottom of the groove is also provided with a cross groove.

3. A fastening screw according to claim 1, wherein: the thickness of the gasket is equal to the height of the second connecting part, and an anti-slip layer is adhered to the bottom of the gasket.

4. A fastening screw according to claim 1, wherein: the convex blocks are in symmetrical distribution structures.

5. A fastening screw according to claim 1 or 2, characterized in that: the bottom of the first connecting part is provided with at least two clamping grooves which are clamped into the corresponding convex blocks.

6. A fastening screw according to claim 1, wherein: the screw is characterized in that threads are arranged on the outer side face of the screw, and a sharp corner is arranged at the bottom of the screw.