CN215567169U

CN215567169U - Anti-loosening fastener

Info

Publication number: CN215567169U
Application number: CN202121390095.4U
Authority: CN
Inventors: 胡新华
Original assignee: Haiyan Huasheng Fasteners Co ltd
Current assignee: Haiyan Huasheng Fasteners Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2022-01-18
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses an anti-loosening fastener which comprises a hexagon bolt and a hexagon nut clamping mechanism; hexagonal bolt: an installation through groove penetrating through the side face is formed in the middle of the upper side of the hexagonal bolt, a round hole is formed in the middle of the upper end of the hexagonal bolt, the lower end of the round hole extends downwards to the installation through groove, a hexagonal nut is connected to the upper portion of the side face of the hexagonal bolt in a threaded mode, and a clamping groove with the same width as the installation through groove is formed in the inner side of the upper end face of the hexagonal nut; hexagonal nut clamping mechanism: is arranged inside the mounting through groove; wherein: the hexagonal bolt structure is characterized by further comprising a gasket which is movably sleeved in the middle of the side face of the hexagonal bolt. Furthermore, hexagon nut chucking mechanism contains minor axis, U type briquetting, fixture block and compression spring. This locking fastener that moves has locking function of moving, uses the back for a long time or through external vibration and collision, can prevent that hexagon nut and hexagon bolt from taking place relative looseness to prevent to be fastened the part damage.

Description

Anti-loosening fastener

Technical Field

The utility model relates to the technical field of fasteners, in particular to an anti-loosening fastener.

Background

The fastener is a mechanical part which is used for fastening connection and has extremely wide application. The fastener is widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees.

Among the fasteners, the hexagon bolt and the hexagon nut are commonly used for fastening and connecting two parts with through holes, and are very convenient to mount and dismount.

However, after the existing fastener is used for a long time or through external vibration and collision, the hexagonal nut and the hexagonal bolt are easy to loosen relatively, and the fastened part is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the existing defects and provides an anti-loosening fastener which has an anti-loosening function and can prevent a hexagon nut and a hexagon bolt from being loosened relatively after long-time use or external vibration and collision, so that damage to a fastened part is prevented, and the problems in the background art can be effectively solved.

In order to achieve the purpose, the utility model provides the following technical scheme: a loosening-preventing fastener comprises a hexagon bolt and a hexagon nut clamping mechanism;

hexagonal bolt: an installation through groove penetrating through the side face is formed in the middle of the upper side of the hexagonal bolt, a round hole is formed in the middle of the upper end of the hexagonal bolt, the lower end of the round hole extends downwards to the installation through groove, a hexagonal nut is connected to the upper portion of the side face of the hexagonal bolt in a threaded mode, and a clamping groove with the same width as the installation through groove is formed in the inner side of the upper end face of the hexagonal nut;

hexagonal nut clamping mechanism: is arranged inside the mounting through groove;

wherein: the hexagonal bolt structure is characterized by further comprising a gasket which is movably sleeved in the middle of the side face of the hexagonal bolt.

Further, hexagon nut chucking mechanism contains minor axis, U type briquetting, fixture block and compression spring, minor axis sliding connection is in the round hole at hexagon bolt's upper end middle part, U type briquetting sliding connection is in the logical inslot of installation, the upper end and the minor axis fixed connection of U type briquetting, the fixture block has two and sliding connection respectively and leads to the lower surface left side and the right side of groove in the installation, the lower extreme of U type briquetting slides in with the upper surface of two fixture blocks and is connected, compression spring's both ends respectively with the inner fixed connection of two fixture blocks. When installation hexagon nut, the minor axis is moved to the pushing down, minor axis downstream can drive U type briquetting and move down, U type briquetting moves down can drive two fixture blocks and move to the inboard, compression spring compression simultaneously, then install behind the hexagon nut, loosen the minor axis, then compression spring extension can push up in two fixture block card advance the draw-in groove on the hexagon nut, then with the hexagon nut chucking, after long-time the use or through external vibration and collision, can prevent that hexagon nut is not hard up, thereby prevent to fasten the part and damage.

Furthermore, the device also comprises two baffle rings, wherein the two baffle rings are respectively and fixedly connected to the inner ends of the two clamping blocks, and the baffle rings are positioned on the outer side of the compression spring. When compression spring was worked for a long time, both ends are not hard up easily, lead to the fixture block not hard up on the draw-in groove easily, through keeping off the ring, can prevent that compression spring's both ends are not hard up to prevent that the fixture block is not hard up.

Furthermore, the nut further comprises a fillet, and the fillet is arranged at the outer end of the clamping groove on the inner side of the upper end of the hexagonal nut. When the hexagonal nut works for a long time, the clamping groove on the hexagonal nut is easy to damage after being used for a long time, the service life of the clamping groove can be prolonged through the round angle, and the strength of the clamping groove is higher.

Furthermore, still include the lag, the lag activity cup joints on hexagon bolt's side, the lower extreme of lag is equipped with the slipmat. When the hexagon nut is installed, the installation through groove can be covered by the protective sleeve through the protective sleeve, and external sundries are prevented from entering the installation through groove.

Further, still include rubber piece one and rubber piece two, rubber piece one fixed connection is on hexagon nut's lower terminal surface, rubber piece two fixed connection is on the up end of hexagon bolt's head. When the hexagon bolt and the hexagon nut are installed, the rubber sheet I and the rubber sheet II can further prevent the hexagon bolt and the hexagon nut from loosening.

Compared with the prior art, the utility model has the beneficial effects that: this locking fastener has following benefit:

1. the anti-loosening fastener is provided with the hexagonal nut clamping mechanism, when the hexagonal nut is installed, the short shaft is pressed downwards, the short shaft moves downwards to drive the U-shaped pressing block to move downwards, the U-shaped pressing block moves downwards to drive the two clamping blocks to move inwards, meanwhile, the compression spring compresses, after the hexagonal nut is installed, the short shaft is loosened, then, the compression spring extends to push the two clamping blocks to be clamped into the clamping grooves in the hexagonal nut, then, the hexagonal nut is clamped, after long-time use or external vibration and collision, the hexagonal nut can be prevented from loosening, and accordingly, the fastened part is prevented from being damaged;

2. the anti-loosening fastener is provided with the rubber sheet I and the rubber sheet II, and when the hexagon bolt and the hexagon nut are installed, the rubber sheet I and the rubber sheet II can further prevent the hexagon bolt and the hexagon nut from loosening;

3. this locking fastener that moves has locking function of moving, uses the back for a long time or through external vibration and collision, can prevent that hexagon nut and hexagon bolt from taking place relative looseness to prevent to be fastened the part damage.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of the present invention.

In the figure: the device comprises a hexagonal bolt 1, an installation through groove 2, a hexagonal nut 3, a washer 4, a hexagonal nut 5 clamping mechanism, a short shaft 51, a pressing block 52U-shaped, a clamping block 53, a compression spring 54, a baffle ring 6, a round angle 7, a protective sleeve 8, a rubber sheet I9 and a rubber sheet II 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides a technical solution: a loosening-preventing fastener comprises a hexagon bolt 1 and a hexagon nut clamping mechanism 5;

the hexagon bolt 1: an installation through groove 2 penetrating through the side face is formed in the middle of the upper side, a round hole is formed in the middle of the upper end of the hexagon bolt 1, the lower end of the round hole extends downwards to the installation through groove 2, a hexagon nut 3 is connected to the upper portion of the side face of the hexagon bolt 1 in a threaded mode, and a clamping groove with the same width as the installation through groove 2 is formed in the inner side of the upper end face of the hexagon nut 3; still include fillet 7, fillet 7 establishes the outer end at the inboard draw-in groove in the upper end of hexagon nut 3. Still include lag 8, lag 8 activity cup joints on the side of hex bolts 1, and the lower extreme of lag 8 is equipped with the slipmat. Still include first rubber sheet 9 and second rubber sheet 10, first rubber sheet 9 fixed connection is on the lower terminal surface of hexagon nut 3, and second rubber sheet 10 fixed connection is on the up end of the head of hexagon bolt 1. When the hexagonal nut 3 works for a long time, the clamping groove on the hexagonal nut is easy to damage after being used for a long time, the service life of the clamping groove can be prolonged through the round angle 7, and the strength of the clamping groove is higher. When installing hexagon nut 3, through lag 8, lag 8 can be shielded logical groove 2 of installation, prevents that external debris from getting into logical groove 2 of installation. When the hexagon bolt 1 and the hexagon nut 3 are installed, the rubber sheet I9 and the rubber sheet II 10 can further prevent the hexagon bolt 1 and the hexagon nut 3 from loosening;

hexagonal nut chucking mechanism 5: is arranged inside the installation through groove 2; hexagonal nut chucking mechanism 5 contains minor axis 51, U type briquetting 52, fixture block 53 and compression spring 54, minor axis 51 sliding connection is in the round hole at hexagon bolt 1's upper end middle part, U type briquetting 52 sliding connection is in logical groove 2 of installation, U type briquetting 52's upper end and minor axis 51 fixed connection, fixture block 53 has two and sliding connection respectively and leads to groove 2's lower surface left side and right side in the installation, U type briquetting 52's lower extreme and two fixture block 53's upper surface inboard sliding connection, compression spring 54's both ends respectively with two fixture block 53's inner fixed connection. The two blocking rings 6 are respectively and fixedly connected to the inner ends of the two clamping blocks 53, and the blocking rings 6 are located on the outer side of the compression spring 54. When installation hexagon nut 3, the minor axis 51 is pressed downwards, minor axis 51 downstream can drive U type briquetting 52 downstream, U type briquetting 52 downstream can drive two fixture blocks 53 and move to the inboard, compression spring 54 compresses simultaneously, then install behind hexagon nut 3, loosen minor axis 51, then compression spring 54 extension can push up in two fixture blocks 53 card draw-in grooves on hexagon nut 3, then with hexagon nut 3 chucking, after long-time the use or through external vibration and collision, can prevent that hexagon nut 3 is not hard up, thereby prevent to fasten the part damage. When the compression spring 54 works for a long time, the two ends are easy to loosen, so that the clamping block 53 is easy to loosen on the clamping groove, and the two ends of the compression spring 54 can be prevented from loosening through the retaining ring 6, so that the clamping block 53 is prevented from loosening;

wherein: the hexagonal bolt further comprises a gasket 4, and the gasket 4 is movably sleeved in the middle of the side face of the hexagonal bolt 1.

The working principle of the anti-loosening fastener provided by the utility model is as follows:

firstly, when fastening parts by using the hexagon bolt 1 and the hexagon nut 3, the hexagon bolt 1 is inserted into a hole of the part to be fastened, the washer 4 is placed respectively, then the hexagon nut 3 is installed, when the hexagon nut 3 is installed, the short shaft 51 is pressed downwards, the short shaft 51 moves downwards to drive the U-shaped pressing block 52 to move downwards, the U-shaped pressing block 52 moves downwards to drive the two clamping blocks 53 to move inwards, the compression spring 54 compresses, then the short shaft 51 is loosened after the hexagon nut 3 is installed, then the compression spring 54 extends to push the two clamping blocks 53 to be clamped into the clamping grooves on the hexagon nut 3, then the hexagon nut 3 is clamped, after long-time use or external vibration and collision, the hexagon nut 3 can be prevented from loosening, thereby preventing the fastened parts from being damaged, when the hexagon bolt 1 and the hexagon nut 3 are installed, through the first rubber sheet 9 and the second rubber sheet 10, looseness between the hexagon bolt 1 and the hexagon nut 3 can be further prevented.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A locking fastener characterized by: comprises a hexagonal bolt (1) and a hexagonal nut clamping mechanism (5);

hex bolt (1): an installation through groove (2) penetrating through the side face is formed in the middle of the upper side of the hexagonal bolt (1), a round hole is formed in the middle of the upper end of the hexagonal bolt, the lower end of the round hole extends downwards to the installation through groove (2), a hexagonal nut (3) is connected to the upper portion of the side face of the hexagonal bolt (1) in a threaded mode, and a clamping groove with the same width as the installation through groove (2) is formed in the inner side of the upper end face of the hexagonal nut (3);

hexagonal nut chucking mechanism (5): is arranged inside the mounting through groove (2);

wherein: the hexagonal bolt is characterized by further comprising a gasket (4), wherein the gasket (4) is movably sleeved in the middle of the side face of the hexagonal bolt (1).

2. A locking fastener as defined in claim 1, wherein: hexagonal nut chucking mechanism (5) contain minor axis (51), U type briquetting (52), fixture block (53) and compression spring (54), minor axis (51) sliding connection is in the round hole at the upper end middle part of hex bolts (1), U type briquetting (52) sliding connection is in logical groove (2) in the installation, the upper end and minor axis (51) fixed connection of U type briquetting (52), fixture block (53) have two and respectively sliding connection at the lower surface left side and the right side that the groove (2) were led to in the installation, the lower extreme of U type briquetting (52) and the upper surface of two fixture blocks (53) inboard sliding connection, the both ends of compression spring (54) respectively with the inner fixed connection of two fixture blocks (53).

3. A locking fastener as defined in claim 2, wherein: the clamping device is characterized by further comprising two retaining rings (6), wherein the two retaining rings (6) are fixedly connected to the inner ends of the two clamping blocks (53) respectively, and the retaining rings (6) are located on the outer side of the compression spring (54).

4. A locking fastener as defined in claim 1, wherein: the hexagonal nut is characterized by further comprising a fillet (7), wherein the fillet (7) is arranged at the outer end of the clamping groove on the inner side of the upper end of the hexagonal nut (3).

5. A locking fastener as defined in claim 1, wherein: still include lag (8), lag (8) activity is cup jointed on the side of hex bolts (1), the lower extreme of lag (8) is equipped with the slipmat.

6. A locking fastener as defined in claim 1, wherein: still include rubber piece (9) and rubber piece two (10), rubber piece one (9) fixed connection is on the lower terminal surface of hexagon nut (3), rubber piece two (10) fixed connection is on the up end of the head of hexagon bolt (1).