CN205977976U - Novel screw bolt and nut - Google Patents

Novel screw bolt and nut Download PDF

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Publication number
CN205977976U
CN205977976U CN201620886432.1U CN201620886432U CN205977976U CN 205977976 U CN205977976 U CN 205977976U CN 201620886432 U CN201620886432 U CN 201620886432U CN 205977976 U CN205977976 U CN 205977976U
Authority
CN
China
Prior art keywords
bolt
nut
hole
blind hole
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620886432.1U
Other languages
Chinese (zh)
Inventor
刘国显
裴大明
孙利峰
郝瑞丽
张文鹏
张淑英
王庆景
冯兴龙
徐海军
马振方
杨国香
郭瑞娟
袁建峰
宋丽娟
裴庆才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Water Construction Engineering Co Ltd
Original Assignee
Zhengzhou Water Construction Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Water Construction Engineering Co Ltd filed Critical Zhengzhou Water Construction Engineering Co Ltd
Priority to CN201620886432.1U priority Critical patent/CN205977976U/en
Application granted granted Critical
Publication of CN205977976U publication Critical patent/CN205977976U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a novel screw bolt and nut, include bolt and the nut of forming a complete set with it, the bolt form by the bolt body of rod and bolt head, the bolt body of rod and bolt head integrated into one piece set up, the nut on be provided with the bolt hole, the bolt head first the one be hexagonal column, the lower half is the hemispheroid, the nut be spherical nut, the nut on be provided with two blind holes parallel with the bolt hole, first hexagonal column's the height of bolt head be lower half hemispheroid radial 23, the axis of bolt hole cross the centre of sphere of nut, the blind hole set up about the axis of bolt hole symmetry, the diameter of blind hole be 14 of diameter of bolt hole, the degree of depth of blind hole be 2 times of blind hole diameter, generally, the utility model has the advantages of simple structure, the connection is firm, the atress performance is good, long service life.

Description

A kind of novel spiral screw bolt and nut
Technical field
This utility model belongs to technical field of fastening, particularly to a kind of novel spiral screw bolt and nut.
Background technology
Bolt, the threaded securing member of cylinder of adapted nut.By head and screw rod(With externally threaded cylinder) A class securing member dimerous, needs and nut screw connection, for being fastenedly connected two parts carrying through hole.
Spherical shell rack engineering in construction because span is big, highly high, horizontal thrust is big, amount of high-altitude operation is big, spell by high-altitude Dress construction is an engineering construction smoothly big key, how high-quality, and the complete cost engineering Construction of Steel Structure of safety is that we are necessary The problem taken seriously.During spherical shell Construction of The Grids, need to use substantial amounts of bolt connection, the connector of spherical shell rack is past Toward extending in all direction, there is the type of attachment of multiple directions, at this moment traditional screw bolt and nut is due to the contact site and connector between Position is planar structure, easily produces the phenomenon of discontinuity, leads to screw bolt and nut to damage, shortens the use of screw bolt and nut Life-span.
Content of the invention
The purpose of this utility model is to provide a kind of novel spiral screw bolt and nut, and this screw bolt and nut is reasonable in design, Easy to use, it is connected firmly, more safety and stability during work, stress is not when contacting with connector for effectively solving screw bolt and nut Uniform problem, has high use value.
The purpose of this utility model is realized in:A kind of novel spiral screw bolt and nut, including bolt and matched Nut, described bolt is made up of the bolt body of rod and bolt head, and the described bolt body of rod and bolt head are integrally formed setting, described Nut on be provided with bolt hole, the first half of described bolt head is hexagonal cylinder, lower half is hemisphere, described nut For spherical nut, described nut is provided with two blind holes parallel with bolt hole.
The height of the first half hexagonal cylinder of described bolt head is the 2/3 of lower half hemisphere radius.
The axis of described bolt hole crosses the centre of sphere of nut.
Described blind hole is arranged with regard to the axisymmetrical of bolt hole.
The 1/4 of a diameter of diameter of bolt hole of described blind hole, the depth of described blind hole is 2 times of blind hole diameter.
This utility model produce beneficial effect be:A kind of novel spiral screw bolt and nut, by the bottom of bolt head and nut It is designed as spherical structure, the sphere that will be set at component bolt connection mutually agree with this utility model screw bolt and nut shape Shape, increased the contact area between bolt, nut and component, makes being more uniformly stressed between bolt, nut and component, keeps away Exempt from stress concentration phenomenon, extend bolt, the service life of nut, the stability of enhancing structure.In addition, setting in the bottom of nut Put two blind holes, when tightening bolt, be inserted in blind hole with special instrument, prevent nut rotation.
Brief description
Fig. 1 is front view of the present utility model.
Fig. 2 is left view of the present utility model.
Fig. 3 is top view of the present utility model.
Fig. 4 is upward view of the present utility model.
Fig. 5 is the profile of nut of the present utility model.
In figure:1st, bolt 2, nut 3, the bolt body of rod 4, bolt head 5, bolt hole 6, blind hole.
Specific embodiment
Below in conjunction with the accompanying drawings to embodiment further instruction of the present utility model.
Embodiment 1
As shown in accompanying drawing 1-5, a kind of novel spiral screw bolt and nut, including bolt 1 and matched nut 2, described spiral shell Bolt 1 is made up of the bolt body of rod 3 and bolt head 4, and the described bolt body of rod 3 and bolt head 4 are integrally formed setting, described nut 2 On be provided with bolt hole 5, the first half of described bolt head 4 is hexagonal cylinder, lower half is hemisphere, and described nut 2 is Spherical nut, described nut 2 is provided with two blind holes 6 parallel with bolt hole.
The height of the first half hexagonal cylinder of described bolt head 4 is the 2/3 of lower half hemisphere radius.
The axis of described bolt hole 5 crosses the centre of sphere of nut 2.
Described blind hole 6 is arranged with regard to the axisymmetrical of bolt hole 5.
The 1/4 of a diameter of bolt hole 5 diameter of described blind hole 6, the depth of described blind hole 6 is the 2 of blind hole 6 diameter Times.
This utility model is when using:A kind of novel spiral screw bolt and nut, including bolt and matched nut, bolt by The bolt body of rod and bolt head composition, bolt head be set to the first half be hexagonal cylinder and lower half be hemispheroidal structure, bolt The outside of the body of rod is provided with external screw thread, and the bolt in the hole of nut is provided with the female thread mutually agreeing with external screw thread.During use, by spiral shell It is consistent with bolt, nut shape that tightening latch body passes through component to be connected, component to be connected and bolt, nut contact site to be set to Spherical structure;Then, one end nut not being had blind hole is directed at the lower end of the bolt body of rod, is screwed on the bolt body of rod;Finally, use Corresponding instrument is inserted in the blind hole of nut and blocks nut, prevents nut rotation, is directed at the six of bolt head afterwards with spanner Bolt is tightened by prism further.
Generally, this utility model has the advantages that structure is simple, connection is firm, stress performance is good, long service life.

Claims (5)

1. a kind of novel spiral screw bolt and nut, including bolt and matched nut, described bolt is by the bolt body of rod and bolt Head composition, the described bolt body of rod and bolt head are integrally formed setting, described nut are provided with bolt hole, its feature exists In:The first half of described bolt head is hexagonal cylinder, lower half is hemisphere, and described nut is spherical nut, described Two blind holes parallel with bolt hole are provided with nut.
2. a kind of novel spiral screw bolt and nut according to claim 1 it is characterised in that:The first half six of described bolt head The height of prism is the 2/3 of lower half hemisphere radius.
3. a kind of novel spiral screw bolt and nut according to claim 1 it is characterised in that:The axis of described bolt hole crosses spiral shell Female centre of sphere.
4. a kind of novel spiral screw bolt and nut according to claim 1 it is characterised in that:Described blind hole is with regard to bolt hole Axisymmetrical is arranged.
5. a kind of novel spiral screw bolt and nut according to claim 1 it is characterised in that:A diameter of bolt of described blind hole The 1/4 of bore dia, the depth of described blind hole is 2 times of blind hole diameter.
CN201620886432.1U 2016-08-16 2016-08-16 Novel screw bolt and nut Expired - Fee Related CN205977976U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620886432.1U CN205977976U (en) 2016-08-16 2016-08-16 Novel screw bolt and nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620886432.1U CN205977976U (en) 2016-08-16 2016-08-16 Novel screw bolt and nut

Publications (1)

Publication Number Publication Date
CN205977976U true CN205977976U (en) 2017-02-22

Family

ID=58030528

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620886432.1U Expired - Fee Related CN205977976U (en) 2016-08-16 2016-08-16 Novel screw bolt and nut

Country Status (1)

Country Link
CN (1) CN205977976U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170222

Termination date: 20190816

CF01 Termination of patent right due to non-payment of annual fee