CN201255166Y - Torsional shear type high-strength bolt for steel structure - Google Patents

Torsional shear type high-strength bolt for steel structure Download PDF

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Publication number
CN201255166Y
CN201255166Y CNU2008200417912U CN200820041791U CN201255166Y CN 201255166 Y CN201255166 Y CN 201255166Y CN U2008200417912 U CNU2008200417912 U CN U2008200417912U CN 200820041791 U CN200820041791 U CN 200820041791U CN 201255166 Y CN201255166 Y CN 201255166Y
Authority
CN
China
Prior art keywords
bolt
head
torsional shear
steel structure
strength bolt
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
CNU2008200417912U
Other languages
Chinese (zh)
Inventor
王文德
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.)
Anhui Changjiang Fasteners Co Ltd
Original Assignee
Anhui Changjiang Fasteners 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 Anhui Changjiang Fasteners Co Ltd filed Critical Anhui Changjiang Fasteners Co Ltd
Priority to CNU2008200417912U priority Critical patent/CN201255166Y/en
Application granted granted Critical
Publication of CN201255166Y publication Critical patent/CN201255166Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a torsional shear high strength bolt for a steel structure, which solves the problems that the prior bolt is installed by a special electric wrench and a wabbler is easy to slip during screwing. The torsional shear high strength bolt comprises a bolt with a mushroom head, wherein, the other end of the bolt is connected with a wrenching head, and a groove is arranged between the wrenching head and a screw rod; the wrenching head is a hexagonal head, and the cross section of the hexagonal head is a regular hexagon. The utility model not only keeps the advantages of the Chinese Standard torsional shear bolt, but also overcomes the defects that the grooves between angles of the wabbler of the prior torsional shear bolt are quite shallow, which can not be installed once skidding occurs; on the other hand, other wrenches can be used to conveniently install when no special electric wrenches can be used.

Description

Steel structure torque-shear type high-strength bolt
Technical field
The utility model relates to steel structure torque-shear type high-strength bolt.
Background technique
At present, domesticly be widely used in industry and be connected with civil building, bridge, pylon, support of pipelines, Hoisting Machinery and other steel structure frictionals and all adopt steel structure with big hex head bolt auxiliary connection of high strength and steel structure usefulness torque-shear type high-strength bolt auxiliary connection.
Steel structure is made up of a bolt, a nut and a pad with torque-shear type high-strength bolt auxiliary connection.The NBS code name is GB/T3632-3633.Wherein bolt is by bolt shank with form at a mushroom head and a wabbler at bolt shank two ends respectively, and there is a groove wabbler and bolt shank joint.Owing to have a wabbler, need with special-purpose electric wrench, but the single face construction, easy construction.When the moment of torsion that applies reached certain numerical value, wabbler can be twisted into two parts automatically, and show promptly that pretightening force has reached requirement this moment, and whether nut is tightened, can check the quality of assembling qualified so intuitively, and can avoid twisting and leak and twist.But there are other defectives in this torque-shear type high-strength bolt: 1. must use special-purpose electric wrench to install; 2. because wabbler is 12 angles, and the groove between angle and the angle is more shallow, in executing the process of twisting, skid easily, just can't install in case skid.
Summary of the invention
Defective at above-mentioned torque-shear type high-strength bolt exists the utility model proposes a kind of new steel structure torque-shear type high-strength bolt.
Concrete architecture advances scheme is as follows:
New steel structure comprises the bolt with mushroom head with the torque-shear type high-strength bolt, and the other end of its bolt is connecting the twisting head, is provided with a groove between described twisting head and the screw rod; Described twisting head is a hexagon head, and the cross section of hexagon head is a regular hexagon.
The method of its construction and installation is the same with GB torque-shear type bolt, and promptly when the moment of torsion that applies reached certain numerical value, hexagon head can be twisted into two parts automatically, and show promptly that pretightening force has reached requirement this moment, and nut is tightened.In case in executing the process of twisting, occur skidding, can't install; When perhaps not having special electric spanner temporarily, available other spanner is installed.Like this, it had both kept the advantage of GB torque-shear type bolt, and the plum blossom brilliance and the groove between the angle that have overcome existing torque-shear type bolt again are more shallow, in case the deficiency of skidding and just can't install.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the A-A sectional view of Fig. 1,
Fig. 3 uses erection drawing for the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, new steel structure comprises the bolt with mushroom 1 with the torque-shear type high-strength bolt, and the other end of its bolt is connecting twisting 4, is provided with a groove 3 between twisting 4 and the screw rod 2; Twisting 4 is a hexagon head, and the cross section of hexagon head is a regular hexagon, sees Fig. 2.
Referring to Fig. 3, when the utility model used, Passscheiben 5 and nut 6 were formed auxiliary connection.When assembling, will be fixed workpiece clamp between mushroom head and packing ring with auxiliary connection, tighten with special electric spanner, when the moment of torsion that applies reached certain numerical value, hexagon head can be twisted into two parts automatically, and show promptly that pretightening force has reached requirement this moment, and nut is tightened.Because the existence of hexagon head in case occur skidding in executing the process of twisting, can't be installed; When perhaps not having the special electric wrench temporarily, also available other spanner is installed.

Claims (1)

1, steel structure torque-shear type high-strength bolt, comprise the bolt with mushroom head, the other end of its bolt is connecting the twisting head, is provided with a groove between described twisting head and the screw rod, it is characterized in that: described twisting head is a hexagon head, and the cross section of hexagon head is a regular hexagon.
CNU2008200417912U 2008-09-03 2008-09-03 Torsional shear type high-strength bolt for steel structure Expired - Fee Related CN201255166Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200417912U CN201255166Y (en) 2008-09-03 2008-09-03 Torsional shear type high-strength bolt for steel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200417912U CN201255166Y (en) 2008-09-03 2008-09-03 Torsional shear type high-strength bolt for steel structure

Publications (1)

Publication Number Publication Date
CN201255166Y true CN201255166Y (en) 2009-06-10

Family

ID=40738483

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200417912U Expired - Fee Related CN201255166Y (en) 2008-09-03 2008-09-03 Torsional shear type high-strength bolt for steel structure

Country Status (1)

Country Link
CN (1) CN201255166Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102267119A (en) * 2011-07-12 2011-12-07 浙江华电器材检测研究所 Device for quickly disassembling torsional shearing type bolt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102267119A (en) * 2011-07-12 2011-12-07 浙江华电器材检测研究所 Device for quickly disassembling torsional shearing type bolt

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Legal Events

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

Granted publication date: 20090610

Termination date: 20160903

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