CN218000100U

CN218000100U - Torsional shear type bolt

Info

Publication number: CN218000100U
Application number: CN202222200817.6U
Authority: CN
Inventors: 陈利淼
Original assignee: Ruian Hanxiang Fastener Co ltd
Current assignee: Ruian Hanxiang Fastener Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-12-09
Anticipated expiration: 2032-08-19

Abstract

The utility model discloses a turn round and cut type bolt, including the bolt head, hexagonal application of force hole in the left side of bolt head has been seted up, the right side of bolt head is provided with connecting rod and anti-skidding tooth, the right-hand member of connecting rod is provided with the screw fastening end, the right-hand member of screw fastening end is provided with the plum blossom head, the surface of screw fastening end is provided with gasket and nut. The utility model discloses an antiskid tooth, corrosion resistant layer, fluorocarbon anticorrosive coating layer, the effect in polysiloxane finish coat coating and interior hexagonal application of force hole, the plum blossom head of having solved the fixed afterbody of special spanner is executed and is twisted the moment of torsion to the nut, it is effort and reaction force to utilize, what in the actual installation process executed and twisted the initial stage all is that the bolt rotates and the nut does not change, cause fastening shaft power unstability, and simultaneously, the torsional shear type bolt is in long-time use, easily under external environment's influence, the corrosion is on the steel construction, lead to being difficult to dismantle, be unfavorable for the problem that people used.

Description

Torsional shear type bolt

Technical Field

The utility model relates to a bolt technical field specifically is turn round and cut type bolt.

Background

The torsional shear type bolt connection pair is widely applied to connection of industrial and civil buildings, bridges, tower mast structures, hoisting machinery and other steel structures due to convenient installation. A bolt, a flat pad and a nut are a set of connecting pair, the flat pad is placed on one side of the nut, the lower surface of the head of the bolt is directly contacted with a connected steel structural part, and a special spanner is used for fixing a quincuncial head at the tail part to apply twisting torque to the nut during fastening until the quincuncial head is broken and the nut is installed.

In order to ensure the fastening axial force of the torsional shear type bolt connecting pair, the nut needs to be lubricated, the nut is required to rotate during installation, and the torsional shear type bolt does not rotate, so that two lubricating surfaces, namely the internal thread of the nut and the gasket surface of the nut, can be used. And the torque is applyed and twisted to the nut to the plum blossom head of the fixed afterbody of special spanner, what utilize is effort and reaction force, and what was applyed in the actual installation in-process is that the initial stage of twisting all is that the bolt rotates and the nut does not change, causes fastening shaft power unstability, simultaneously, turns round the type bolt of cutting in long-time use, under external environment's influence easily, the corrosion leads to being difficult to dismantle on the steel construction, is unfavorable for people's use, for this reason, we propose the type bolt of cutting of turning round.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a turn round and cut type bolt, possess the stable advantage with convenient the dismantlement of fastening axial force, the plum blossom head of having solved the fixed afterbody of special spanner is executed and is twisted the moment of torsion to the nut, what utilize is effort and reaction force, what in the actual installation process was executed and is twisted the initial stage all is that the bolt rotates and the nut does not change, cause fastening axial force unstable, and simultaneously, turn round and cut type bolt in long-time use, easily under external environment's influence, the corrosion is on the steel construction, lead to being difficult to dismantle, be unfavorable for the problem that people used.

In order to achieve the above object, the utility model provides a following technical scheme: turn round and cut type bolt, including the bolt head, hexagon socket head force application hole has been seted up in the left side of bolt head, the right side of bolt head is provided with connecting rod and anti-skidding tooth, the right-hand member of connecting rod is provided with screw fastening end, screw fastening end's right-hand member is provided with the plum blossom head, screw fastening end's surface is provided with gasket and nut, the outside of bolt head, anti-skidding tooth, connecting rod, screw fastening end, gasket and nut is all scribbled and is equipped with the corrosion resistant layer, the outside of corrosion resistant layer is scribbled and is equipped with resistant layer, resistant layer includes fluorocarbon anticorrosive coating layer and polysiloxane finish coating.

Preferably, the inner hexagonal force application hole is a blind hole, and the depth of the inner hexagonal force application hole is five to seven times of zero of the thickness of the bolt head.

Preferably, the number of the anti-skidding teeth is multiple, the included angles between two adjacent anti-skidding teeth are equal, and meanwhile, the longitudinal section of each anti-skidding tooth is triangular.

Preferably, a tool withdrawal groove is formed between the threaded fastening end and the quincuncial head, the gasket is sleeved on the outer side of the threaded fastening end, and meanwhile, the nut is in threaded connection with the threaded fastening end.

Preferably, the corrosion-resistant layer is a polytetrafluoroethylene coating, and the thickness of the corrosion-resistant layer is between seventy micrometers and two hundred micrometers.

Preferably, the polysiloxane finish coating is coated on the outer side of the corrosion-resistant layer, and the fluorocarbon anticorrosive coating layer is coated on the outer side of the polysiloxane finish coating.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a cooperation of antiskid tooth, make the frictional force increase between bolt head and the steel construction, and then can avoid the bolt to rotate and the condition that the nut does not change in the installation, the stability of fastening shaft power has been ensured, effect through corrosion resistant layer, can improve the bolt head, antiskid tooth, the connecting rod, the screw fastening end, the anticorrosive ability of gasket and nut surface, effect through resistant layer, and under the cooperation of fluorocarbon anticorrosive coating layer and polysiloxane finish coating, the bolt head has been improved, antiskid tooth, the connecting rod, the screw fastening end, the pliability and the shock resistance of gasket and nut surface, and possess superstrong weatherability and corrosion resistance and good self-cleaning, and simultaneously, the gloss and color retention is good, and can increase twice protection to corrosion resistant layer, and then avoided the external environment to make the condition appearance of cost bolt on the steel construction, when dismantling, through inserting including the hexagon spanner in the force application hole and the opening in the nut outside corrosion spanner in the outside, can dismantle it fast, make things convenient for people's use, the fixed afterbody is exerted the moment of torsion to the nut and is exerted to the nut, the plum blossom spanner and the bolt is the effect that the nut is difficult to screw up when dismantling in the long-time, the external environment, the unstable effect of the external application of the bolt is not being favorable to be carried out in the long-time.

Drawings

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

fig. 2 is a left side view structure diagram of the bolt head of the present invention;

FIG. 3 is a schematic structural view of the corrosion-resistant layer of the present invention;

fig. 4 is a schematic view of the structure of the weather-resistant layer of the present invention.

In the figure: 1. a bolt head; 2. anti-slip teeth; 3. a connecting rod; 4. screwing the end; 5. a gasket; 6. a nut; 7. plum blossom heads; 8. an inner hexagonal force application hole; 9. a corrosion resistant layer; 10. a weatherable layer; 101. a fluorocarbon anticorrosive coating layer; 102. and (3) coating a polysiloxane finish coat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the torsional shear type bolt comprises a bolt head 1, a hexagon socket force application hole 8 is formed in the left side of the bolt head 1, a connecting rod 3 and an anti-slip tooth 2 are arranged on the right side of the bolt head 1, a threaded fastening end 4 is arranged at the right end of the connecting rod 3, a quincuncial head 7 is arranged at the right end of the threaded fastening end 4, a gasket 5 and a nut 6 are arranged on the outer surface of the threaded fastening end 4, the outer sides of the bolt head 1, the anti-slip tooth 2, the connecting rod 3, the threaded fastening end 4, the gasket 5 and the nut 6 are all coated with a corrosion-resistant layer 9, a weather-resistant layer 10 is coated on the outer side of the corrosion-resistant layer 9, and the weather-resistant layer 10 comprises a fluorocarbon anticorrosive coating layer 101 and a polysiloxane finish coating 102.

The inner hexagonal force application hole 8 is a blind hole, and the depth of the inner hexagonal force application hole 8 is five to seven times of the zero point of the thickness of the bolt head 1.

Through the setting of hexagon socket head cap force application hole 8, can conveniently dismantle with the help of hexagon socket head cap spanner, make things convenient for people's use.

The quantity of antiskid tooth 2 is a plurality of, and the contained angle between two adjacent antiskid teeth 2 equals, and simultaneously, the longitudinal section of antiskid tooth 2 is triangle-shaped.

Through the setting of antiskid tooth 2, can provide great frictional force, and then can avoid the bolt to rotate and the condition that the nut does not change in the installation, ensured the stability of fastening shaft power.

A tool withdrawal groove is arranged between the thread fastening end 4 and the plum blossom head 7, the gasket 5 is sleeved outside the thread fastening end 4, and meanwhile, the nut 6 is in threaded connection with the thread fastening end 4.

Through the arrangement of the threaded fastening end 4, the plum blossom head 7, the gasket 5 and the nut 6, the use of people can be facilitated.

The corrosion-resistant layer 9 is a polytetrafluoroethylene coating, and the thickness of the corrosion-resistant layer 9 is between seventy micrometers and two hundred micrometers.

Through the setting of corrosion resistant layer 9, can improve the anticorrosive ability of bolt head 1, anti-skidding tooth 2, connecting rod 3, screw fastening end 4, gasket 5 and nut 6 surface.

The polysiloxane finish coat 102 is coated on the outer side of the corrosion-resistant layer 9, and the fluorocarbon anticorrosive coating layer 101 is coated on the outer side of the polysiloxane finish coat 102.

Through the setting of polysiloxane finish coat 102 and fluorocarbon anticorrosive coating layer 101, the pliability and the impact resistance of bolt head 1, anti-skidding tooth 2, connecting rod 3, thread tightening end 4, gasket 5 and nut 6 surface have been improved to possess superstrong weatherability and corrosion resistance and good self-cleaning nature, simultaneously, the gloss and the color retention are good, and can increase twice protection to corrosion resistant layer 9, and then avoided the external environment to make the condition appearance of cost bolt corrosion on the steel construction.

During the use, through the cooperation of antiskid tooth 2, make the frictional force increase between bolt head 1 and the steel construction, and then can avoid the bolt to rotate and the condition that the nut does not rotate in the installation, the stability of fastening shaft power has been ensured, through the effect of corrosion resistant layer 9, can improve bolt head 1, antiskid tooth 2, connecting rod 3, screw fastening end 4, the anticorrosive ability of gasket 5 and nut 6 surface, through the effect of resistant layer 10, and under the cooperation of fluorocarbon anticorrosive coating layer 101 and polysiloxane finish coat 102, improved bolt head 1, antiskid tooth 2, connecting rod 3, screw fastening end 4, the pliability and the shock resistance of gasket 5 and nut 6 surface, and possess superstrong weatherability and anticorrosive nature and good self-cleaning, and simultaneously, the gloss and color retention are good, and can increase two protections to corrosion resistant layer 9, and then avoided the external environment to make the condition of cost bolt on the steel construction to appear, when dismantling, through inserting under the supplementary spanner of the opening in hexagon spanner and the nut 6 outside of inner hexagonal application of force hole 8, can dismantle fast, the people's use has been made things convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Torsional shear type bolt, including bolt head (1), its characterized in that: hexagon socket head application of force hole (8) have been seted up in the left side of bolt head (1), the right side of bolt head (1) is provided with connecting rod (3) and anti-skidding tooth (2), the right-hand member of connecting rod (3) is provided with screw fastening end (4), the right-hand member of screw fastening end (4) is provided with plum blossom head (7), the surface of screw fastening end (4) is provided with gasket (5) and nut (6), the outside of bolt head (1), anti-skidding tooth (2), connecting rod (3), screw fastening end (4), gasket (5) and nut (6) is all scribbled and is equipped with corrosion resistant layer (9), weather resistant layer (10) are scribbled in the outside of corrosion resistant layer (9), weather resistant layer (10) include fluorocarbon anticorrosive coating layer (101) and polysiloxane finish coat (102).

2. The twist-shear bolt of claim 1, wherein: the inner hexagonal force application hole (8) is a blind hole, and the depth of the inner hexagonal force application hole (8) is five to seven times of the zero point of the thickness of the bolt head (1).

3. The twist-shear bolt of claim 1, wherein: the quantity of antiskid tooth (2) is a plurality of, and the contained angle between two adjacent antiskid teeth (2) equals, and simultaneously, the longitudinal section of antiskid tooth (2) is triangle-shaped.

4. The twist-shear bolt of claim 1, wherein: a tool withdrawal groove is formed between the threaded fastening end (4) and the plum blossom head (7), the gasket (5) is sleeved on the outer side of the threaded fastening end (4), and meanwhile, the nut (6) is in threaded connection with the threaded fastening end (4).

5. The twist-shear bolt of claim 1, wherein: the corrosion-resistant layer (9) is a polytetrafluoroethylene coating, and the thickness of the corrosion-resistant layer (9) is between seventy microns and two hundred microns.

6. The twist-shear bolt of claim 1, wherein: the polysiloxane finish coat (102) is coated on the outer side of the corrosion-resistant layer (9), and the fluorocarbon anticorrosive coating layer (101) is coated on the outer side of the polysiloxane finish coat (102).