CN219712013U

CN219712013U - Half-flower tooth tip tail screw

Info

Publication number: CN219712013U
Application number: CN202223551559.2U
Authority: CN
Inventors: 杨禕冰
Original assignee: Yiyi Precision Hardware Shanghai Co ltd
Current assignee: Yiyi Precision Hardware Shanghai Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-09-19
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a half-spline pointed tail screw which comprises a stud, wherein the top of the stud is provided with a screw head, the screw head and the stud are of an integrated structure, the lower end of the screw head is provided with a rubber ring, and the outer surface of the screw head is provided with a plurality of half-spline teeth. The device has and increases the screw head through being equipped with sixteen half flower tooth on the screw head and uses frictional force when assembling, avoids appearing skidding phenomenon to the holistic installation stability of screw has further been improved.

Description

Half-flower tooth tip tail screw

Technical Field

The utility model relates to the field of fastening piece structures, in particular to a half-flower tooth tip tail screw.

Background

The screw refers to a screw, which is a tool for progressively fastening a machine part by utilizing the physical and mathematical principles of the inclined circular rotation and friction force of an object, is a universal expression of the fastener, and is widely used in machinery, electric appliances and buildings.

The current screw generally uses the gasket between screw head and object, contradicts through gasket and object and realizes the better fixed effect to the screw, like the bolt of strengthening connection stability of publication number CN213206260U, including the body, the body is including coupling nut and connecting screw rod, has seted up the standing groove on the coupling nut, and the cover is equipped with flat packing ring on the connecting screw rod, and the connecting screw rod is including polished rod portion and screw thread portion, and flat packing ring is located polished rod portion, and still movable sleeve is equipped with spring washer between coupling nut and flat packing ring at the connecting screw rod. And the diameter of the thread part is larger than the inner diameters of the flat gasket and the spring gasket, and although the prior art can improve the connection stability with objects, the structure is complex, accessories are more, the processing is inconvenient, and the whole use convenience of the bolt is reduced.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a half-flower tooth tip tail screw.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the half-spline pointed tail screw comprises a stud, wherein the top of the stud is provided with a screw head, the screw head and the stud are of an integrated structure, the lower end of the screw head is provided with a rubber ring, and the outer surface of the screw head is provided with a plurality of half-spline teeth.

As a further description of the above technical solution: the screw head is fixedly connected with the rubber ring through bonding.

As a further description of the above technical solution: the number of the half-flower teeth is sixteen.

As a further description of the above technical solution: and a screw knife groove is formed in the head part of the screw far away from the top of the stud.

As a further description of the above technical solution: and a magnetic adsorption sheet is arranged in the head part of the screw.

As a further description of the above technical solution: the diameter of the magnetic adsorption piece is larger than that of the stud, and the diameter of the magnetic adsorption piece is smaller than that of the screw head.

As a further description of the above technical solution: the surface of the stud is provided with threads.

The utility model has the following beneficial effects:

1. according to the utility model, the rubber ring is arranged at the lower end of the screw head, and has a certain elastic deformation capability, when the screw is installed and used, a certain external force is applied, so that the rubber ring is deformed, the contact friction force between the screw head and an installed piece is increased, and the integral installation stability of the screw is improved.

2. According to the utility model, the screw head is provided with sixteen half-spline teeth to increase friction force during assembly of the screw head, so that slipping phenomenon is avoided, the overall installation stability of the screw is further improved, and the screw is simple in structure, practical and convenient.

Drawings

FIG. 1 is a schematic view of a half-tooth pointed tail screw according to the present utility model;

FIG. 2 is a top view of a half-tooth pointed tail screw according to the present utility model;

FIG. 3 is a bottom view of a half-tooth pointed tail screw according to the present utility model;

fig. 4 is a cross-sectional view of the head of a half-tooth pointed tail screw according to the present utility model.

Legend description:

1. a stud; 2. a screw head; 3. a rubber ring; 4. half-flower teeth; 5. a screw groove; 6. a magnetic adsorption sheet; 7. and (5) screw threads.

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.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a half flower tooth point tail screw, including double-screw bolt 1, the top of double-screw bolt 1 is equipped with screw head 2, screw head 2 and double-screw bolt 1 integrated into one piece structure, the lower extreme of screw head 2 is equipped with rubber circle 3, the diameter of rubber circle 3 is less than the diameter of screw head 2, screw head 2 and rubber circle 3 pass through bonding fixed connection, rubber circle 3 has increased the contact friction between screw head 2 and the installed part, the side of screw head 2 is equipped with a plurality of half flower teeth 4, the quantity of half flower tooth 4 sets up to sixteen, half flower tooth 4 increases the friction when screw head 2 uses the assembly, avoid appearing skidding phenomenon, thereby the holistic installation stability of screw has been improved.

Further, a screw cutter groove 5 is formed in the top of the screw head 2 far away from the stud 1, a chamfer is formed in the edge of the screw cutter groove 5, the chamfer angle is 30 degrees, and a screw cutter is conveniently placed in the screw cutter groove 5

Further, the depth of the screw driver slot 5 is 1/3 of the height of the screw head 2, ensuring that the screw driver has sufficient space to insert into the screw driver slot 5.

Further, the inside of the screw head 2 is provided with the magnetic adsorption piece 6, the diameter of the magnetic adsorption piece 6 is larger than that of the stud 1, the diameter of the magnetic adsorption piece 6 is smaller than that of the screw head 2, and the magnetic adsorption piece 6 improves the friction force between the whole screw and mechanical equipment.

Further, the surface of the stud 1 is provided with threads 7, and the screws are matched with the internal threads of the mounting holes through the threads 7 to realize the fastening of the screws.

Working principle: during the use, insert the spiral shell sword in spiral shell sword groove 5, twist the spiral shell sword and drive the screw and rotate, the screw passes through screw thread 7 and the mounting hole internal thread mutually support and realize fastening, the lower extreme of screw head 2 is equipped with rubber circle 3, rubber circle 3 has certain elastic deformation ability, when the screw installation is used, apply certain external force, can make rubber circle 3 produce deformation, increased screw head 2 and by the contact friction between the installed part, improved screw holistic installation stability, frictional force when screw head 2 use the assembly is increased through being equipped with sixteen half flower tooth 4 on the screw head 2 simultaneously, avoid appearing the phenomenon of skidding, thereby further improved screw holistic installation stability.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The half-spline pointed tail screw comprises a stud (1), and is characterized in that: the top of double-screw bolt (1) is equipped with screw head (2), screw head (2) with double-screw bolt (1) is integrated into one piece structure, the lower extreme of screw head (2) is equipped with rubber circle (3), the surface of screw head (2) is equipped with a plurality of half flower tooth (4).

2. A half-tooth pointed tail screw as claimed in claim 1, wherein: the screw head (2) is fixedly connected with the rubber ring (3) through bonding.

3. A half-tooth pointed tail screw as claimed in claim 1, wherein: the number of the half-flower teeth (4) is sixteen.

4. A half-tooth pointed tail screw as claimed in claim 2, wherein: a screw cutter groove (5) is formed in the top of the screw head (2) far away from the stud (1).

5. A half-tooth pointed tail screw as claimed in claim 4, wherein: the inside of the screw head (2) is provided with a magnetic adsorption sheet (6).

6. A half-tooth pointed tail screw as claimed in claim 5, wherein: the diameter of the magnetic adsorption sheet (6) is larger than that of the stud (1), and the diameter of the magnetic adsorption sheet (6) is smaller than that of the screw head (2).

7. A half-tooth pointed tail screw as claimed in claim 6, wherein: threads (7) are arranged on the surface of the stud (1).

8. A half-tooth pointed tail screw as claimed in claim 4, wherein: the depth of the screw knife groove (5) is 1/3 of the height of the screw head (2).

9. A half-tooth pointed tail screw as claimed in claim 8, wherein: the edge of the screw cutter groove (5) is provided with a chamfer angle which is 30 degrees.

10. A half-tooth pointed tail screw as claimed in claim 1, wherein: the diameter of the rubber ring (3) is smaller than the diameter of the screw head (2).