CN212377077U

CN212377077U - Nut capable of prompting bolt loosening and dust prevention

Info

Publication number: CN212377077U
Application number: CN202021309934.0U
Authority: CN
Inventors: 刘兴丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-19
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a suggestion bolt is not hard up and dirt-proof nut, include: the sealing film is adhered to at least one surface of the nut; the sealing film covers the whole surface of the nut, and the edge of the sealing film is firmly adhered and connected with the surface of the nut by glue; the surface of the sealing film is printed with the identification lines or patterns with obvious reflection or color contrast; the bolt is connected with the nut, the head of the bolt screw is screwed into the nut and extrudes and stretches the sealing film, and the sealing film is made of a high-elasticity material and is subjected to stretching deformation in a certain range without cracking; the marking line is a straight line, and the marking pattern comprises: crosses, rectangular edges, polygonal edges, circles, arcs, curves, characters, letters, numbers, symbols; and visually judging whether the bolt is loosened or not through the deformation of the identification line or the brightness of the red semitransparent plastic film.

Description

Nut capable of prompting bolt loosening and dust prevention

Technical Field

The utility model relates to a bolt especially relates to nut with bolt not hard up prompt facility.

Background

The existing bolt realizes the anti-loose connection of the bolt through the structural design or the mode of adhesive bonding, and the effect is good. However, if the bolt is sent to be loosened, the bolt can be visually seen, and the occurrence of accidents can be favorably prevented.

Disclosure of Invention

The nut capable of prompting bolt loosening and dust prevention is provided, and whether the bolt is loosened or not is visually seen and judged through the bending change of the identification line or the reflection intensity change of the semitransparent colored plastic film.

In order to achieve the above object, the utility model provides a suggestion bolt is not hard up and dirt-proof nut, include: the sealing film is adhered to at least one surface of the nut; the sealing film covers the whole surface of the nut, and the edge of the sealing film is firmly adhered and connected with the surface of the nut by glue; the surface of the sealing film is printed with the identification lines or patterns with obvious reflection or color contrast; the bolt is connected with the nut, the head of the screw rod of the bolt is screwed into the nut and extrudes and stretches the sealing film, and the sealing film is made of a high-elasticity material and is subjected to tensile deformation but not broken within a certain range; the marking line is a straight line, and the marking pattern comprises: crosses, rectangular edges, polygonal edges, circles, arcs, curves, characters, letters, numbers, symbols; the sealing film is a semitransparent plastic film with warning colors, and the warning colors are as follows: red, yellow, white; the sealing film is adhered to the two sides of the nut through glue, and the through hole of the nut is filled with the adhesive.

Furthermore, the sealing film consists of an identification layer and a transparent surface layer from inside to outside; alternatively, the identification layer is located between two surface layers.

Further, the sealing film is composed of multiple overlapping films, and comprises: a reflecting layer, a transition layer and a marking layer.

Further, the sealing film is made of transparent, semitransparent or opaque materials.

Furthermore, a printing layer is arranged on one surface, in contact with the bolt, of the sealing film, and the printing layer is used for preventing the bolt from being adhered to the sealing film.

In the embodiment of the present invention: through bolted connection the nut, the bolt screw is to preventing on the nut surface the sealing film pushes away, sealing film atress tensile deformation, the marking line on sealing film surface is also stretched into a line of standing up, laminates in screw rod external screw thread lateral wall. When the bolt is loosened, the surface of the sealing film collapses and deforms after losing the support, and the identification line deforms along with the deformation. Through whether the identification line is deformed or not, whether the bolt is loosened or not is judged visually.

In addition, a red high-elasticity plastic film is glued on the surface of the nut. When the bolt is screwed into the nut, the screw pushes the plastic film to deform, the head of the screw is tightly attached to the surface of the plastic film, and light irradiates the surface of the plastic film and is dark red. As the bolts are typically black or dark. When the bolt and the nut are loosened, the head of the bolt screw rod is separated from the plastic film, light irradiates the plastic film, the light penetrates the semitransparent plastic film, and the brightness is increased. And judging whether the bolt is loosened or not through the brightness change of the light irradiated to the surface of the plastic film. And visually judging whether the bolt is loosened or not through the deformation of the identification line or the brightness of the red semitransparent plastic film.

Drawings

Fig. 1 is a schematic view of the whole three-dimensional structure of the utility model, which is used for prompting the loosening of the bolt and the covering of the sealing film of the dustproof nut on the surface of the nut.

Fig. 2 is a schematic view of the three-dimensional structure of the utility model, showing that the sealing film of the nut is loosened and dustproof, and the marking line is a straight line after the sealing film is jacked and stretched by the screw rod in the bolt.

Fig. 3 is the utility model discloses a suggestion bolt becomes flexible and the bolt of dirt-proof nut becomes flexible back, sealing film surface sinks, the spatial structure sketch map of sign line deformation.

Fig. 4 is a schematic side view of the whole structure of the utility model, which is used for indicating the loosening of the bolt and the covering of the sealing film of the dustproof nut on the surface of the nut.

Fig. 5 is a schematic side view of the utility model, showing that the sealing film of the nut is stretched by the bolt screw to indicate the looseness of the bolt and the dust prevention, and the marking line is a straight line.

Fig. 6 is a schematic side view of the side structure and local enlargement after the stretching protrusion of the bolt jacking sealing film of the nut for prompting the loosening of the bolt and preventing dust of the utility model.

In the figures, the reference numerals are explained as follows:

1 nut 2 sealing film 21 marking line.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-6, a nut for prompting bolt loosening and dust prevention comprises: the sealing film comprises a nut 1, a sealing film 2 and an identification line 21, wherein at least one surface of the nut 1 is connected with at least one layer of the sealing film 2 in an adhesive manner; the sealing film 2 covers the whole surface of the nut 1, and the edge of the sealing film is firmly bonded with the surface of the nut 1 by glue; the surface of the sealing film 2 is printed with the mark line 21 or the pattern with obvious reflection or color contrast; the bolt is connected with the nut 1, the head of the bolt screw is screwed into the nut 1 and extrudes and stretches the sealing film 2, and the sealing film 2 is made of a high-elasticity material and is stretched and deformed within a certain range without breaking; the marking line 21 is a straight line, and the marking pattern includes: crosses, rectangular edges, polygonal edges, circles, arcs, curves, characters, letters, numbers, symbols; according to the needs, the sealing film 2 is a semitransparent plastic film with warning colors, and the warning colors are as follows: red, yellow, white; according to the requirement, the sealing film 2 is adhered to the two sides of the nut 1, and the through hole of the nut 1 is filled with an adhesive.

Specifically, the sealing film 2 is covered and glued on at least one surface of the nut 1, and the sealing film 2 is a plastic film or a composite plastic film. The mark line 21 or the pattern is printed on the surface of the plastic film, and whether the bolt is loosened or not is judged through whether the mark line 21 is bent or not.

When the bolt is screwed into the nut 1, the head of the bolt screw rotates against the bottom surface of the plastic film and stretches outwards, and the identification line 21 stretches accordingly. The plastic film deforms under stress and is attached to the surface and the side face of the head of the screw. The marking line 21 on the surface of the plastic film is a straight line and is also attached to the surface and the side surface of the screw head. When the bolt is loosened, the surface of the end head of the screw rod is separated from the surface of the plastic film, the surface of the plastic film is collapsed and deformed after losing the support of the screw rod, and the identification line 21 is deformed accordingly. Whether the bolt loosens or not can be visually judged by checking whether the identification line 21 or the pattern deforms or not.

The identification line 21 is attached to the surface of the plastic film by means of printing or lines by means of gluing the lines. The color contrast between the identification line 21 and the bolt is strong. Generally, when the bolt is black, the marking line 21 is white. When the bolt is silver, the marking line 21 is red, yellow or black. The marking line 21 is a straight line, the length and the bending angle of the marking line 21 after stretching are changed, but the shape of the straight line is not changed. Therefore, whether the bolt is loosened can be intuitively judged by whether the identification line 21 deforms or not.

The mark line 21 reflects light by adding a light reflecting agent or light reflecting particles to the paint. When patrolling and examining night, shine through the light of flashlight, the line shape of more clear seeing. Besides straight lines, when the identification lines 21 are identification patterns, the patterns can be cross-shaped, square frames, rectangular frames, circles, oval rings or frame lines or figures such as characters and symbol information. Also, whether the bolt is loosened is judged by checking whether the frame line or the figure in the pattern is deformed.

The sealing film 2 is made of a plastic film with good elasticity and tensile property, and is stretched and deformed but not broken under the pushing of a screw rod of the bolt. The material can be stretch film, nylon, polyethylene, etc. When the screw of the bolt is connected with the nut 1 and the screw distance exceeds the nut 1 too much, the sealing film 2 is broken. At this time, whether the bolt is loosened is judged by the deformation of the mark line 21 attached to the side of the external thread of the screw by the sealing film 2.

When the sealing film 2 is a double-layer film structure, the marking lines 21 are arranged on the surface of the plastic film of the inner layer, and the sealing film is soft, light and thin and has good tensile property. The inner layer is favorable for the corresponding deformation of the marking line 21 when the bolt is slightly loosened. The outer layer is transparent and thick, and also has good tensile property. The outer layer can resist the impact of certain external force and has the functions of dust prevention and dust prevention. The edges of the inner layer and the outer layer are fused and sealed through hot melting to form a sealed bag structure, and the edge glue is adhered to the surface of the nut 1. According to the requirement, the inner layer is positioned between the two outer layers and is wrapped inside the two outer layers.

When the sealing film 2 is multilayer, the reflecting layer is aluminum foil or coated with reflecting paint or particles for enhancing light reflection. The transition layer is made of white semitransparent materials and is used as a reflective layer in transition, namely, when films are attached to each other, the transition layer is used for increasing the reflective strength. When the films are separated, the reflecting layer is prevented from reflecting excessively and the films are prevented from being adhered. The marking lines 21 are printed on the surface of the marking layer, and whether the bolt is loosened or not is judged through the shape change of the lines. The edges between the films are connected in a hot melting fusion mode, and the middle part of the film is of a sealed bag structure which is overlapped up and down.

When the sealing film 2 is a semitransparent plastic film with red or yellow warning color. When the sealing film 2 is attached to the bolt, the light irradiates the surface of the bolt, and the surface is less reflective, relatively darker in color and deep red. When the bolt is loosened, a gap is formed between the surface of the end head of the bolt screw and the sealing film 2, when the bolt is illuminated, light penetrates through the semitransparent red plastic film, the brightness is increased, and the color is relatively bright. And judging whether the bolt is loosened or not by the brightness and darkness of the surface of the red semitransparent reflective surface irradiated by light. According to the requirement, the bottom surface of the red semitransparent sealing film 2 is adhered or coated with a reflective layer or a reflective film with a reflective function. The edges or the whole of the two are connected by hot melt fusion or adhesive bonding. The mark line 21 is printed on the surface of the semitransparent sealing film 2.

When the bolt is connected with the nut 1, the distance of the bolt screw rod exceeding the nut 1 is in a reasonable range, and the sealing film 2 cannot crack after being stretched. Meanwhile, the sealing film 2 covering the surface of the nut 1 can also play a dustproof role. It is suitable for use in the bolt fastener in which the connection length is relatively fixed, and can be used both indoors and outdoors.

When the sealing films 2 are adhered to the upper surface and the lower surface of the nut 1, the nut 1 can play a dustproof effect in the storage process. And the sealing films 2 are glued on the upper surface and the lower surface of the nut 1, a sealed space is formed by a through hole in the middle of the nut 1, anaerobic glue or epoxy glue can be filled in the sealed space, and the glue is glued between the external thread of the bolt and the internal thread of the nut 1 to realize anti-loose connection of the bolt. The marking line 21 can also play a role in reminding when the bolt is loosened.

Claims

1. The utility model provides a suggestion bolt is not hard up and dirt-proof nut, characterized by includes: the sealing film is adhered to at least one surface of the nut; the sealing film covers the whole surface of the nut, and the edge of the sealing film is firmly adhered and connected with the surface of the nut by glue; the surface of the sealing film is printed with the identification lines or patterns with obvious reflection or color contrast; the bolt is connected with the nut, the head of the screw rod of the bolt is screwed into the nut and extrudes and stretches the sealing film, and the sealing film is made of a high-elasticity material and is subjected to tensile deformation but not broken within a certain range; the marking line is a straight line, and the marking pattern comprises: crosses, rectangular edges, polygonal edges, circles, arcs, curves, characters, letters, numbers, symbols; the sealing film is a semitransparent plastic film with warning colors, and the warning colors are as follows: red, yellow, white; the sealing film is adhered to the two sides of the nut through glue, and the through hole of the nut is filled with the adhesive.

2. The nut for prompting bolt loosening and dust prevention as claimed in claim 1, comprising:

the sealing film consists of an identification layer and a transparent surface layer from inside to outside; alternatively, the identification layer is located between two surface layers.

3. The nut for prompting bolt loosening and dust prevention as claimed in claim 1, comprising:

the sealing film is composed of multiple overlapping films and comprises: a reflecting layer, a transition layer and a marking layer.

4. The nut for prompting bolt loosening and dust prevention as claimed in claim 1, comprising:

the sealing film is made of transparent, semitransparent or opaque materials.

5. The nut for prompting bolt loosening and dust prevention as claimed in claim 1, comprising:

the sealing film is provided with a printing layer on one side in contact with the bolt, and the printing layer is used for preventing the bolt from being adhered to the sealing film.