CN212717575U

CN212717575U - Dustproof and anti-drop screw assembly

Info

Publication number: CN212717575U
Application number: CN202020762570.5U
Authority: CN
Inventors: 秦凤兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-10
Filing date: 2020-05-10
Publication date: 2021-03-16
Anticipated expiration: 2030-05-10

Abstract

A dustproof and anti-drop screw assembly comprises a bolt, a nut and a screw cap, wherein the nut is sleeved outside the bolt and is in threaded connection, a positioning groove is formed in the bottom of the bolt, the end part of the positioning groove penetrates out of the outer side of the bolt, a clamping groove with the same depth as the groove shape of the positioning groove is formed in the inner side of the bottom of the nut, a positioning protrusion is arranged on the upper end face of the screw cap, when the clamping groove is perpendicular to the positioning groove, the positioning protrusion is simultaneously matched into the clamping groove and the positioning groove, when the screw assembly is used, the nut is screwed on the outer side of the bolt after penetrating through the other side of an object to be fixed, the clamping groove and the positioning groove form a straight line or cross groove structure, then the screw cap is covered, the positioning protrusion on the screw cap is sucked with the positioning groove, the middle part of the positioning protrusion is matched into the positioning groove, the clamping groove is matched outside to form positioning limitation, causing the detachment.

Description

Dustproof and anti-drop screw assembly

Technical Field

The utility model relates to a dustproof anti-drop's screw subassembly belongs to the screw subassembly field.

Background

After the existing bolt and the nut are screwed tightly, dust easily permeates between the bolt and the nut, and the nut is easy to fall off when being subjected to external force.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dustproof anti-drop's screw subassembly to solve current bolt and nut and screw the back of screwing, the dust permeates easily between bolt and the nut, and receives the exogenic action when the nut, causes the problem that drops easily.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a dustproof anti-drop's screw assembly, its structure includes bolt, nut, spiral shell lid, the nut overlaps in the bolt outside to adopt threaded connection, the bolt bottom is equipped with the constant head tank, the constant head tank tip passes through the bolt outside, nut bottom inboard is equipped with the draw-in groove the same with constant head tank cell type degree of depth, the spiral shell lid up end is equipped with the location protrudingly, and when the draw-in groove was mutually perpendicular with the constant head tank, the location was protruding to join in marriage simultaneously in draw-in groove and the constant head tank in, the spiral shell lid seals the nut bottom, all be equipped with the magnet structure on protruding and the constant head tank in the location to.

Furthermore, when the clamping groove is perpendicular to the positioning groove, a straight groove structure is formed.

Further, when the clamping groove is perpendicular to the positioning groove, a cross groove structure is formed.

Further, the positioning protrusions are in a straight-line structure.

Further, the positioning protrusion is of a cross-shaped structure.

The utility model has the advantages that: during the use, the bolt pierces through the back by the object opposite side that needs to be fixed, revolves the nut in the bolt outside, after screwing, draw-in groove and constant head tank this moment form a word or cross groove structure, then cover the spiral shell lid, the protruding and constant head tank of location on the spiral shell lid are inhaled mutually, the protruding middle part of location is joined in marriage in the constant head tank, the draw-in groove is joined in marriage to the outside, form the location restriction, the spiral shell lid still has the restrictive effect in dirt-proof, effectually prevents that the nut from receiving the exogenic action, causes and drops.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic cross-sectional view of a dustproof and anti-separation screw assembly of the present invention;

FIG. 2 is a schematic bottom sectional view of a bolt and a nut according to embodiment 1;

FIG. 3 is a schematic bottom sectional view of a bolt and a nut according to embodiment 2;

FIG. 4 is a schematic top view of the screw cap according to embodiment 1;

FIG. 5 is a schematic top view of the screw cap according to embodiment 2;

fig. 6 is a schematic perspective view of the screw cap.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Example 1:

referring to fig. 1, 2, 4 and 6, the present invention provides a technical solution of a dustproof and anti-separation screw assembly: its structure includes bolt 1, nut 2,

spiral shell lid

3, 2 covers in the 1 outside of bolt of nut to adopt threaded connection, 1 bottom of bolt is equipped with constant head tank 4, the 1 outside of bolt is seen through to 4 tip of constant head tank, 2 bottom inboards of nut are equipped with the draw-in groove 5 the same with constant head tank 4 cell type degree of depth, 3 up end of spiral shell lid is equipped with the location is protruding 6, and when draw-in groove 5 was mutually perpendicular with constant head tank 4, in draw-in groove 5 and constant head tank 4 were joined in marriage simultaneously to the location is protruding 6, spiral shell lid 3 seals 2 bottoms of nut, all be equipped with the magnet structure on location is protruding 6 and the constant head tank 4 to both inhale mutually, when draw-in groove 5 was mutually perpendicular with constant head tank 4, form a word groove structure, location is protruding 6 and is.

For example, when the bolt 1 is used, after the other side of an object to be fixed penetrates through the bolt 1, the nut 2 is screwed outside the bolt 1, after the bolt is screwed, the clamping groove 5 and the positioning groove 4 form a straight groove structure, then the screw cover 3 is covered, the positioning protrusion 6 on the screw cover 3 is attracted with the positioning groove 4, the middle part of the positioning protrusion 6 is matched with the positioning groove 4, and the clamping groove 5 is matched with the outer part of the positioning protrusion to form positioning limitation.

Example 2:

referring to fig. 1, 3 and 5, the present invention provides a technical solution of a dustproof and anti-falling screw assembly: the structure includes bolt 1, nut 2,

spiral shell lid

3, 2 covers in 1 outsides of bolt of nut to adopt threaded connection, 1 bottom of bolt is equipped with constant head tank 4, the 1 outside of bolt is seen through to 4 tip of constant head tank, 2 bottom inboards of nut are equipped with the draw-in groove 5 the same with constant head tank 4 cell type degree of depth, 3 up end of spiral shell lid is equipped with the location protruding 6, and when draw-in groove 5 was mutually perpendicular with constant head tank 4, the location is protruding 6 to join in marriage simultaneously in draw-in groove 5 and constant head tank 4, and spiral shell lid 3 seals 2 bottoms of nut, all be equipped with the magnet structure on location protruding 6 and the constant head tank 4 to both inhale mutually, when draw-in groove 5 was mutually perpendicular with constant head tank 4, form the cross groove structure, location protruding 6 is the.

For example, when the bolt 1 is used, after the other side of an object to be fixed penetrates through the bolt 1, the nut 2 is screwed outside the bolt 1, after the bolt is screwed, the clamping groove 5 and the positioning groove 4 form a cross groove structure, then the screw cover 3 is covered, the positioning protrusion 6 on the screw cover 3 is attracted with the positioning groove 4, the middle part of the positioning protrusion 6 is matched with the positioning groove 4, and the clamping groove 5 is matched with the outer part of the positioning protrusion to form positioning limitation.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a dustproof anti-drop's screw subassembly which characterized in that: its structure includes bolt (1), nut (2), spiral shell lid (3), nut (2) cover in bolt (1) outside to adopt threaded connection, bolt (1) bottom is equipped with constant head tank (4), bolt (1) outside is seen through to constant head tank (4) tip, nut (2) bottom inboard is equipped with draw-in groove (5) the same with constant head tank (4) cell type degree of depth, spiral shell lid (3) up end is equipped with location arch (6), and when draw-in groove (5) and constant head tank (4) were mutually perpendicular, draw-in groove (5) and constant head tank (4) were joined in marriage simultaneously in location arch (6), and spiral shell lid (3) seal nut (2) bottom, all be equipped with the magnet structure on location arch (6) and constant head tank (4) to both inhale mutually.

2. The screw assembly of claim 1, wherein: when the clamping groove (5) is vertical to the positioning groove (4), a straight groove structure is formed.

3. The screw assembly of claim 1, wherein: when the clamping groove (5) is vertical to the positioning groove (4), a cross groove structure is formed.

4. The screw assembly of claim 2, wherein: the positioning protrusion (6) is of a straight-line structure.

5. The screw assembly of claim 3, wherein: the positioning protrusions (6) are of a cross-shaped structure.