TWM504161U - Washer structure for screw - Google Patents

Description

Gasket structure for screws

The present invention relates to a washer structure for a screw, which is composed of a metal gasket and a rubber gasket, and the rubber gasket is disposed under the metal gasket and is opened between the metal gasket and the rubber gasket. A through hole, especially the upper edge of the inner diameter of the through hole in the middle of the metal gasket and the rubber gasket and the conductive rubber coated on the inner diameter of the metal gasket.

In many projects, the screw 10 with the washer 11 (as shown in the first figure) is used, and the conventional washer 11 is used to bond the metal piece 12 and the rubber piece 13 and then die-cut, but to prevent the screw 10 and the metal sheet 12 outside the gasket 11 is rusted. For this reason, the rust-preventing treatment is most often carried out by electrostatic coating in the industry, and the surface of the screw 10 and the gasket 11 can be protected by coating to prevent it from being exposed to the air. Moisture erosion and rapid oxidation, while electrostatic coating sprays the coating through the metal nozzle of the high-voltage electrostatic generator and generates negative electricity, while the screw 10 and the gasket 11 are conveyed by the positively charged conveyor belt, so that the screw 10 and the conveyor belt Positive conduction occurs when the conduction is generated. Under the principle of positive and negative phase absorption, the negatively charged coating will coat the positively charged screw 10 and the gasket 11 to achieve complete anti-rust treatment, but the conventional gasket 11 is generally used. Punching the perforations 14, 15 and wearing the metal sheet 12 The aperture a of the hole 14 is larger than the outer diameter A of the screw 16 of the screw 10, and the through hole 15 of the rubber piece 13 is in a contracted shape. When the Phillips screw 10 passes through the through hole 15 of the rubber piece 13, the thread 16 and the rubber piece are The perforation 15 of the 13 is abutted against the periphery (as shown in the second figure), but the structure is such that the perforation 14 of the metal piece 12 of the washer 11 is larger than the screw 10 of the screw 10, and the contact surface of the screw 10 and the washer 11 is rubber. The sheet 13 is incapable of conducting electricity between the two, so that when the screw 10 and the gasket 11 are subjected to electrostatic coating, the gasket 11 will not be able to adsorb the paint on the surface, resulting in uneven coating of the rust-proof coating, which is conventionally overcome. The problem.

Another manufacturer adds graphite powder or carbon powder in the rubber sheet manufacturing process of the gasket, so that the processed rubber sheet can have a conductive function because it contains graphite powder or carbon powder, and overcomes the problem that the rubber sheet of the general gasket cannot be electrically conductive. However, this type of production will increase the cost due to the addition of graphite powder or carbon powder to the rubber sheet. The fact that the rubber sheet is round will cause a lot of waste in the manufacturing process, and these wastes contain graphite powder or carbon powder. The waste material cannot be recycled and reused, and there is no difference in the appearance of the rubber sheet with or without the addition of graphite powder or carbon powder, which increases the trouble of material management.

In view of this, the author is actively researching and developing a gasket structure for screws, so that the washers and screws can effectively produce conductive conditions.

The main purpose of the present invention is to provide a gasket structure for a screw, which is composed of a metal gasket and a rubber gasket, and the rubber gasket is disposed under the metal gasket and is opened between the metal gasket and the rubber gasket. A through-hole, especially in the middle of the inner diameter of the through-hole of the metal gasket and the rubber gasket and the inner diameter of the metal gasket Electro-adhesive, and the conductive adhesive is also coated between the lower edge of the inner diameter of the through hole and the lower edge of the rubber gasket.

10‧‧‧ screws

11‧‧‧Washers

12‧‧‧metal pieces

13‧‧‧Rubber sheet

14‧‧‧Perforation

15‧‧‧Perforation

16‧‧‧ threaded teeth

20‧‧‧Washers

21‧‧‧Metal gasket

22‧‧‧Rubber gasket

23‧‧‧through hole

30‧‧‧ conductive adhesive

40‧‧‧ screws

41‧‧‧ threaded teeth

The first figure is a schematic perspective view.

The second figure is a schematic cross-sectional view of the prior art.

The third picture is a three-dimensional diagram of the creation.

The fourth picture is a schematic diagram of the use of this creation.

The fifth drawing is a perspective view of still another embodiment of the present creation.

The sixth drawing is a perspective view of another embodiment of the present creation.

For the rest, a detailed example of the details and technical means of this creation will be given, and the details will be described below with reference to the drawings.

Referring to the third figure, the present invention is a gasket structure for a screw. The gasket 20 is composed of a metal gasket 21 and a rubber gasket 22, and the rubber gasket 22 is disposed on the metal gasket 21. A through hole 23 is defined in the middle of the metal gasket 21 and the rubber gasket 22, especially the inner diameter of the inner diameter of the metal gasket 21 and the rubber gasket 22 and the inner diameter of the metal gasket 21. The conductive paste 30 is provided, and the conductive adhesive 30 is also coated between the lower edge of the inner diameter of the through hole 23 and the lower edge of the rubber spacer 22.

That is, when the screw 40 is screwed through the through hole 23 of the gasket 20 (as shown in the fourth figure), since the upper end of the through hole 23 is coated with the conductive adhesive 30, the screw 41 of the screw 40 will touch. The conductive adhesive 30 is connected to the metal gasket 21 by the conductive adhesive 30 at the upper end of the through hole 23, and the screw 40 can be uniformly adsorbed on the surface of the gasket 20 and the screw 40 when the powder 40 is subjected to the powder anticorrosive paint, and the screw 40 is only touched. The conductive adhesive 30 at the lower end of the through hole 23 of the gasket 20 is inserted into the positively charged conveyor belt by the screw 40 and the gasket 20, and the positively charged conveyor belt will be touched by the rubber gasket 22 under the gasket 20. The conductive paste 30, the contact point of which will generate electricity, can attract the powder anti-rust paint, and the paint can be uniformly adsorbed on the surface of the gasket 20 and the screw 40.

The conductive adhesive 30 coated in the present invention is a mixture of an adhesive and a conductive powder.

The adhesive of the present invention is polyvinyl alcohol (C2H4O).

The conductive powder of this creation may not be metal powder, graphite powder or carbon powder.

Further, as shown in the fifth and sixth figures, in the embodiment of the present invention, the inner side of the through hole 23 of the gasket 20 of the present invention can be coated with the conductive adhesive 30 at various positions as needed.

In summary, the gasket structure used in the creation screw has already had the content of the breakthrough formula, and has the implementation direction of the first creation, and at the same time, it can achieve the practical benefits of the industry, and is more in line with the principle of industrial utilization. Sex and progressive, all in line with the requirements of the patent application, 提出 apply in accordance with the law, please 钧 The Bureau clearly inspected and granted legal patent rights.

Moreover, the specific embodiments of the present invention are merely examples of the more commonly used embodiments, and are not limited to the contents of the present technical means, and the implementation of other equal functions is within the scope of the present invention.

20‧‧‧Washers

21‧‧‧Metal gasket

22‧‧‧Rubber gasket

23‧‧‧through hole

30‧‧‧ conductive adhesive

Claims (6)

A gasket structure for a screw, the gasket is composed of a metal gasket and a rubber gasket, and the rubber gasket is disposed under the metal gasket, and a through hole is formed between the metal gasket and the rubber gasket, in particular Refers to the inner edge of the inner diameter of the metal gasket and the rubber gasket and the inner diameter of the metal gasket coated with conductive adhesive, and the conductive rubber is also coated between the lower edge of the inner diameter of the through hole and the lower edge of the rubber gasket. , Phillips and screws produce conductive conductors. The gasket structure for a screw according to the first aspect of the invention, wherein the conductive adhesive is a mixture of an adhesive and a conductive powder. The gasket structure for a screw according to claim 2, wherein the adhesive is polyvinyl alcohol (C2H4O). The gasket structure for a screw according to claim 2, wherein the conductive powder is a metal powder. The gasket structure for a screw according to claim 2, wherein the conductive powder is graphite powder. The gasket structure for a screw according to claim 2, wherein the conductive powder is carbon powder.