CN214146197U - Twelve-angle fixed-torque fastener for steel structure - Google Patents
Twelve-angle fixed-torque fastener for steel structure Download PDFInfo
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- CN214146197U CN214146197U CN202022533751.3U CN202022533751U CN214146197U CN 214146197 U CN214146197 U CN 214146197U CN 202022533751 U CN202022533751 U CN 202022533751U CN 214146197 U CN214146197 U CN 214146197U
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Abstract
The utility model relates to a torque fastener is decided to twelve angles for steel construction, including double-screw bolt and nut, double-screw bolt left end fixedly connected with bolt end cap, the cutting of bolt end cap middle section has first kerve, double-screw bolt and nut threaded connection, the cutting of nut middle section has the second to cut the groove, pulls the kerve of twisting the position through the bolt, guarantees when screwing up the moment of torsion that sets up, and the fracture takes place. The bolt can be intuitively expressed to reach the designed torque, and safety accidents such as insufficient torque or over-screwing during bolt installation are avoided.
Description
Technical Field
The utility model relates to a bolt technical field, especially a twelve-angle fixed torque fastener for steel construction.
Background
The bolt that uses in the middle of the steel construction among the prior art, there is the intensity low in the ordinary existence, and the installation firmness is not high, causes steel construction stability to reduce, has certain potential safety hazard.
The national intellectual property office of the people's republic of china has announced a utility model about bolt, and the publication number of this utility model is: CN 201180722Y, including bolt head and the screw rod of being linked into an organic whole with it, the anterior segment of screw rod is equipped with the screw thread section, and the screw rod is the cavity form, and the junction of screw rod and bolt head adopts the fillet transition, thereby this utility model structure can take place to screw up the power and reach the highest influence that causes the connection safety of spout to the nut soon twisted the in-process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides can audio-visually express the bolt and reach the design moment of torsion to the moment of torsion when avoiding the bolt installation is not enough or the twelve corners that the incident such as wrong takes place decides moment of torsion fastener for steel construction.
For solving foretell technical problem, the utility model provides a moment of torsion fastener is decided to twelve angles for steel construction, including double-screw bolt and nut, double-screw bolt left end fixedly connected with bolt end cap, the cutting of bolt end cap middle section has first cut groove, double-screw bolt and nut threaded connection, the cutting of nut middle section has the second to cut the cut groove.
Further, threads are arranged on the stud, and the bolt end cap is in the shape of a dodecagonal shape.
Furthermore, the lower end of the nut is fixedly connected with a nut end plate, and the nut is in a dodecagonal shape.
Furthermore, the stud and the nut are made of carbon steel.
Compared with the prior art after adopting above-mentioned structure, the utility model discloses in pull the grooving of twisting the position through the bolt, guarantee when screwing up the moment of torsion that sets up, the fracture takes place. The bolt can be intuitively expressed to reach the designed torque, and safety accidents such as insufficient torque or over-screwing during bolt installation are avoided.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a stud.
FIG. 2 is a front view of the stud.
Fig. 3 is a schematic structural view of the nut.
In the figure: 1 is a bolt end cap, 2 is a stud, 3 is a thread, 4 is a first cut groove, 6 is a nut, 7 is a nut end plate, and 8 is a second cut groove.
Detailed Description
As shown in fig. 1 and 2, a twelve-angle fixed torque fastener for steel structure, including double-screw bolt 2 and nut 6, 2 left end fixedly connected with bolt end cap 1 of double-screw bolt, 1 middle section cutting of bolt end cap has first kerve 4, and two-layer about first kerve 4 falls into bolt end cap 1, guarantees when screwing up the moment of torsion that sets up, and this bolt of the audio-visual expression of breaking has reached the design moment of torsion, and the moment of torsion when having avoided the bolt installation is not enough or security accidents such as excessively twisting, be provided with screw thread 3 on the double-screw bolt 2, the shape of bolt end cap 1 is the dodecagon, and the shape of bolt end cap 1 can increase frictional force for the dodecagon makes difficult spout.
As shown in fig. 3, double-screw bolt 2 and nut 6 threaded connection, nut 6 middle section cutting has second cut groove 8, and the second cut groove 8 that has equally cut on nut 6 also avoids the moment of torsion when nut 6 installs incident such as inadequately or excessively wrong, the lower extreme fixedly connected with nut end plate 7 of nut 6, the shape of nut 6 is dodecagonal, and the shape of nut 6 can increase frictional force for dodecagonal and make the spout of being difficult to, the material of double-screw bolt 2 and nut 6 is the carbon steel, and the intensity of whole fastener can be guaranteed to practical carbon steel.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many changes and modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined only by the appended claims.
Claims (4)
1. The utility model provides a twelve-angle fixed torque fastener for steel construction, includes double-screw bolt (2) and nut (6), characterized by: the utility model discloses a double-screw bolt, including double-screw bolt (2) left end fixedly connected with bolt end cap (1), bolt end cap (1) middle section cutting has first cut groove (4), double-screw bolt (2) and nut (6) threaded connection, nut (6) middle section cutting has second cut groove (8).
2. A twelve-point torque fastener for steel structures as defined in claim 1, wherein: the screw bolt (2) is provided with threads (3), and the bolt end cap (1) is dodecagonal.
3. A twelve-point torque fastener for steel structures as defined in claim 1, wherein: the lower end of the nut (6) is fixedly connected with a nut end plate (7), and the nut (6) is dodecagonal.
4. A twelve-point torque fastener for steel structures as defined in claim 1, wherein: the stud (2) and the nut (6) are made of carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022533751.3U CN214146197U (en) | 2020-11-05 | 2020-11-05 | Twelve-angle fixed-torque fastener for steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022533751.3U CN214146197U (en) | 2020-11-05 | 2020-11-05 | Twelve-angle fixed-torque fastener for steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214146197U true CN214146197U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022533751.3U Active CN214146197U (en) | 2020-11-05 | 2020-11-05 | Twelve-angle fixed-torque fastener for steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214146197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211446A (en) * | 2021-12-17 | 2022-03-22 | 深圳供电局有限公司 | Bull bolt drive arrangement |
-
2020
- 2020-11-05 CN CN202022533751.3U patent/CN214146197U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211446A (en) * | 2021-12-17 | 2022-03-22 | 深圳供电局有限公司 | Bull bolt drive arrangement |
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