CN2793399Y - Special nut and bolt for fixing column apparatus and foot - Google Patents
Special nut and bolt for fixing column apparatus and foot Download PDFInfo
- Publication number
- CN2793399Y CN2793399Y CN 200520071096 CN200520071096U CN2793399Y CN 2793399 Y CN2793399 Y CN 2793399Y CN 200520071096 CN200520071096 CN 200520071096 CN 200520071096 U CN200520071096 U CN 200520071096U CN 2793399 Y CN2793399 Y CN 2793399Y
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- Prior art keywords
- nut
- bolt
- hole
- tower machine
- cone
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- 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 - Lifetime
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- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a bolt and a nut used for connecting and fixing a tower machine and a concrete prefabricated splicing foundation, wherein one end of the bolt is provided with a hole which is perpendicular to an axis of the bolt; a stop pin is inserted into the hole; the upper end of the nut forms a cone body; the nut is provided with a groove which is perpendicular to an axis of the cone body; the outside of the cone body of the nut is clamped with the nut, and the inner wall of a screw hole arranged on the lower end of the nut is a conical surface. Because the bolt is provided with the hole and a clamp passes through the hole, the nut arranged on the lower part of a fastened object is blocked by the clamp and can not fall of under the action of the torque force and the mechanical vibration force; because the upper end of the nut arranged on the upper part of the fastened object forms the cone body and is provided with the groove, the nut is tightly clamped by a lower opening of the other nut, and the nut is tightly bundled on the bolt, therefore the nut can not fall off by the action of the torque force and the mechanical vibration force, and the use safety of the tower machine and the object having the action of the torque force or the mechanical vibration force can be increased.
Description
Technical field:
The utility model relates to the assembling on tower machine and concrete basis, relates in particular to the fixing bolt and nut of concrete precast assembly foundation for tower crane and tower machine.
Background technique:
At present, in construction, concrete precast assembly foundation for tower crane, because of having a short construction period, disassemble or assemble, fortune are convenient and swift, non-environmental-pollution, the No Assets waste, and can improve the utilization ratio of tower machine and the user cost of saving the tower machine, and generally be subjected to attention in the industry, applied in many areas.And at present on this class foundation for tower crane, because the torsion in the work of tower machine, and the vibration force of machinery, the nut that the assemblying body of tower machine and concrete prefabricated member is connected and fixed very easily gets loose from bolt, need the special messenger fastening in addition every day, nonetheless, the nut below the gene basis can't fasteningly still have the phenomenon that gets loose, and the tower machine is in the hidden danger.
Summary of the invention:
It is bolt, the nut that the concrete prefabricated member assemblying body is connected and fixed that the technical problems to be solved in the utility model provides a kind of tower machine and basis, even twisting force or mechanism vibrations are arranged, nut yet can not become flexible or comes off from bolt.
The technical solution of the utility model is to realize like this.
Vertical its axis of one end of bolt has the hole, is installed with shotpin in this hole, and the upper end of nut is cone, is parallel to cone axis and has groove, and at the cone wild card of this nut the inwall of lower end screw being arranged is the nut of conical surface.
Described is the pin card from untie-sell, and one end external diameter is greater than the internal diameter of bolt bottom institute perforate, and after the pin card the other end passed this hole, bayonet socket opened, and its bore is also greater than this hole internal diameter.
Beneficial effect:
The utility model has the hole owing on the bolt, and passes this hole with clamp, and the nut of therefore fastened object below is stopped by clamp, although be subjected to the effect of torsion and mechanical vibration force, also can not become flexible or come off.
Moreover the nut upper end of fastened object top is cone, and has groove, and by the end opening of another nut chucking, it is tightened on bolt, therefore also can not become flexible because of the effect of torsion and mechanical vibration force.Of the present utility model applying will be improved the Security that the tower machine uses, and saves artificial.
Description of drawings:
Fig. 1 is bolt, nut secure fit view.
Fig. 2 is Fig. 1 generalized section.
Fig. 3 is the schematic top plan view of nut 5 among Fig. 2.
Fig. 4 is the schematic perspective view of nut 5.
Embodiment:
As shown in Figure 1, 2, its axis of the lower vertical of bolt 1 has hole 2, and shotpin 3 one end external diameters are greater than the internal diameter in hole 2, after shotpin 3 the other ends pass hole 2, open bayonet socket, its bore is also greater than this hole internal diameter, and nut 4 is braked pin 3 to be stopped then and can not become flexible or come off.As Fig. 2, Fig. 3, shown in Figure 4, nut 5 upper ends are cone, be the cross symmetry perpendicular to cone axis and have groove 7, as shown in Figure 2, the inwall of the lower end screw of nut 6 is a conical surface, its tapering is slightly less than the tapering of nut 5 cones, after nut 5 was tightened, fastening nut 6 again, restrainted the cone of nut 5 tightly until the inner conical surface of nut 6, make groove 7 gap smaller, can not become flexible or come off thereby nut 5, nut 6 are tightened on bolt 1.As shown in Figure 1, 2, this special bolt, nut are used for object fixedly the time, are provided with pad 8 between nut and fastened object.
The utility model is not only applicable to tower machine and basic fixing, and has been applicable to torsion yet, and fixing between the object of the vibration force of machinery.
Claims (4)
1, tower machine and basic fixed special bolt nut, it is characterized in that: the bolt (1) of nut (4) bottom is gone up vertical its axis and is had hole (2), be installed with shotpin (3) in the hole (2), the upper end of nut (5) is cone, be parallel to cone axis and have groove (7), the lower end screw of nut (6) is clamped on outside the cone of nut (5).
2, tower machine as claimed in claim 1 and basic fixed special bolt nut is characterized in that: tapered of the lower end screw inwall of nut (6), its tapering is slightly less than the tapering of nut (5) cone.
3, tower machine as claimed in claim 1 and basic fixed special bolt nut is characterized in that: described groove (7) is that concentric is the cross symmetry with the cone of nut (4).
4, tower machine as claimed in claim 1 and basic fixed special bolt nut, it is characterized in that: described shotpin (3) is the pin card, and its two ends external diameter is all greater than hole (2) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071096 CN2793399Y (en) | 2005-04-23 | 2005-04-23 | Special nut and bolt for fixing column apparatus and foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071096 CN2793399Y (en) | 2005-04-23 | 2005-04-23 | Special nut and bolt for fixing column apparatus and foot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793399Y true CN2793399Y (en) | 2006-07-05 |
Family
ID=36820544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520071096 Expired - Lifetime CN2793399Y (en) | 2005-04-23 | 2005-04-23 | Special nut and bolt for fixing column apparatus and foot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2793399Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477179A (en) * | 2014-12-17 | 2015-04-01 | 南车二七车辆有限公司 | Railway flatcar reinforced wheel type vehicle device |
-
2005
- 2005-04-23 CN CN 200520071096 patent/CN2793399Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477179A (en) * | 2014-12-17 | 2015-04-01 | 南车二七车辆有限公司 | Railway flatcar reinforced wheel type vehicle device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090109 Address after: No. 18 Middle South Road, Haian County, Nantong City, Jiangsu Province, China: 226600 Patentee after: Jiangsu Suzhong Construction Group Co., Ltd. Address before: Institute of Surveying and mapping, Xinmin East Road, Jiangsu, Huaian, China: 223002 Patentee before: Cong Weimin |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU PROVINCE SUZHONG CONSTRUCTION GROUP CO., L Free format text: FORMER OWNER: CONG WEIMIN Effective date: 20090109 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150423 Granted publication date: 20060705 |