CN210480683U - Standard knot bolt anti-loosening device of tower crane - Google Patents
Standard knot bolt anti-loosening device of tower crane Download PDFInfo
- Publication number
- CN210480683U CN210480683U CN201920952311.6U CN201920952311U CN210480683U CN 210480683 U CN210480683 U CN 210480683U CN 201920952311 U CN201920952311 U CN 201920952311U CN 210480683 U CN210480683 U CN 210480683U
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- bolt
- tower crane
- fastening
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Abstract
A tower crane standard knot bolt anti-loosening device relates to a safety protection accessory device of a tower crane, in particular to an anti-loosening device aiming at a tower crane standard knot bolt. The closed-loop type bolt fastening device comprises a closed-loop type body and a fastening bolt, and is characterized in that the closed-loop type body comprises a fastening circular arc section and a rotation-resisting straight section; a polygonal assembly hole is formed in the closed-loop body and is matched with a nut of a standard section bolt of the tower crane; a bolt hole is formed in the side edge of the fastening arc section, and a fastening bolt is arranged in the bolt hole; the rotation-resisting straight line section is composed of right-angle sides with two mutually perpendicular sides. The bolt looseness is avoided, the safety coefficient is improved, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to a tower crane's safety protection auxiliary device especially belongs to a locking device to tower crane standard festival bolt.
Background
The tower crane is called tower crane for short, and is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction. The tower crane occupies an important position in modern engineering construction, particularly, high-rise buildings are more and more along with the development of the construction industry, and the tower crane is an indispensable important tool in the construction process of the high-rise buildings. The safety of the tower crane, which is an important vertical transport vehicle for carrying goods in high-rise building construction, is often the central importance of the safety management work of the whole project. During operation of the tower crane, due to frequent vibration, impact and variable load effects, friction force between thread inclined planes in bolt connection may disappear or decrease instantly, and if the phenomenon occurs repeatedly, bolt connection is gradually loosened, rigidity and tightness of the bolt connection are affected, and bolts are likely to fall off, so that great potential safety hazards are caused.
Disclosure of Invention
The utility model aims at providing a tower crane standard festival bolt locking device to reach the purpose of avoiding the bolt not hard up, improving factor of safety, reduction maintenance frequency.
The utility model provides a tower crane standard festival bolt locking device, including closed loop formula body and fastening bolt, characterized in that, the closed loop formula body includes fastening circular arc section and hinders the rotation straightway; a polygonal assembly hole is formed in the closed-loop body and is matched with a nut of a standard section bolt of the tower crane; a bolt hole is formed in the side edge of the fastening arc section, and a fastening bolt is arranged in the bolt hole; the rotation-resisting straight line section is composed of right-angle sides with two mutually perpendicular sides.
The utility model provides a tower crane standard festival bolt locking device is provided with the pilot hole in the fastening circular arc section, pilot hole and tower crane standard festival bolt looks adaptation, and the nut of tower crane standard festival bolt is placed at the pilot hole. Bolt holes are formed in two sides of the fastening arc section, fastening bolts are arranged in the bolt holes, the fastening bolts are screwed inwards, and the fastening bolts are fastened on nuts of standard section bolts of the tower crane. The right-angle side that hinders the commentaries on classics straightway supports tower crane standard festival, can prevent the utility model discloses and the nut of fastening in the fabrication hole rotates. Therefore, the utility model discloses it is not hard up to have the bolt of avoiding, improves factor of safety, reduces cost of maintenance's positive effect.
Drawings
The accompanying drawings partially disclose embodiments of the present invention, in which,
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a first usage state diagram of the present invention;
fig. 3 is a second usage state diagram of the present invention.
Detailed Description
As shown in fig. 1, the anti-loosening device for the standard knot bolt of the tower crane provided by the utility model comprises a closed loop type body 1 and a fastening bolt 2, wherein the closed loop type body 1 comprises a fastening circular arc section 3 and a rotation resistance straight line section 4, a dodecagon assembling hole 5 is arranged in the fastening circular arc section 3, and the assembling hole 5 is matched with a nut of the standard knot bolt of the tower crane; bolt holes are respectively arranged at two sides of the fastening arc section 3, and fastening bolts 2 are arranged in the bolt holes; the two sides of the rotation-resisting straight line segment 4 are right-angle sides 41.
As shown in fig. 2 and 3, the utility model discloses when using, at first, establish fastening circular arc section 3 cover on tower crane standard festival bolt 7, make tower crane standard festival bolt 7's nut be located pilot hole 5, hinder the right-angle side 41 of changeing straightway 4 and support tower crane standard festival 6. Then, fastening bolt 2 inwards screws, and fastening bolt 2 is provided with the external screw thread, is provided with the internal thread in the bolt hole, and the front end fastening of two fastening bolt 2 of 3 both sides of fastening circular arc section is on tower crane standard festival bolt 7's nut, fastens it in the mounting hole, owing to hinder the right-angle side 41 of changeing straightway 4 and support tower crane standard festival, can prevent the utility model discloses and the bolt and nut of fastening is not hard up, avoids causing great potential safety hazard.
Because the nuts of the standard knot bolts 7 of the tower crane, which is called a tower crane for short, are hexagonal, and the assembly holes 5 are dodecagonal assembly holes 5, the angle of adjustment is 30 degrees each time, the adjustability is high, and the use is flexible and convenient.
In particular, the assembly hole 5 is formed by connecting 12 arc-shaped edges 51 end to end in sequence. The arc top of arc limit 51 sets up towards the pilot hole 5 in, and arc limit 51 has increased the area of contact of pilot hole 5 with tower crane standard festival bolt 7 nut, reduces the clearance of activity of nut, and is convenient for process, does benefit to the assembly.
Claims (4)
1. A tower crane standard knot bolt anti-loosening device comprises a closed loop type body (1) and a fastening bolt (2), and is characterized in that the closed loop type body (1) comprises a fastening circular arc section (3) and a rotation-resisting straight section (4); a polygonal assembly hole (5) is formed in the closed-loop body, and the assembly hole (5) is matched with a nut of a standard section bolt of the tower crane; a bolt hole is formed in the side edge of the fastening circular arc section (3), and a fastening bolt (2) is arranged in the bolt hole; the rotation-resisting straight line section (4) is composed of right-angle sides (41) with two mutually perpendicular sides.
2. The tower crane standard knot bolt looseness prevention device as defined in claim 1, wherein the fitting hole (5) is a dodecagon fitting hole.
3. The tower crane standard knot bolt looseness prevention device as defined in claim 1 or 2, wherein 2 bolt holes are formed in the side edge of the fastening circular arc section (3).
4. The tower crane standard knot bolt looseness prevention device as defined in claim 2, wherein the assembly hole (5) is formed by connecting twelve arc-shaped edges (51) end to end in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920952311.6U CN210480683U (en) | 2019-06-24 | 2019-06-24 | Standard knot bolt anti-loosening device of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920952311.6U CN210480683U (en) | 2019-06-24 | 2019-06-24 | Standard knot bolt anti-loosening device of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210480683U true CN210480683U (en) | 2020-05-08 |
Family
ID=70514511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920952311.6U Expired - Fee Related CN210480683U (en) | 2019-06-24 | 2019-06-24 | Standard knot bolt anti-loosening device of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210480683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184667A (en) * | 2021-05-26 | 2021-07-30 | 河南大诚机械制造有限公司 | Stopping structure for standard section of construction elevator |
-
2019
- 2019-06-24 CN CN201920952311.6U patent/CN210480683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184667A (en) * | 2021-05-26 | 2021-07-30 | 河南大诚机械制造有限公司 | Stopping structure for standard section of construction elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 Termination date: 20210624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |