CN2440968Y - Adjustable screw rod style expansion screw - Google Patents
Adjustable screw rod style expansion screw Download PDFInfo
- Publication number
- CN2440968Y CN2440968Y CN 00249440 CN00249440U CN2440968Y CN 2440968 Y CN2440968 Y CN 2440968Y CN 00249440 CN00249440 CN 00249440 CN 00249440 U CN00249440 U CN 00249440U CN 2440968 Y CN2440968 Y CN 2440968Y
- Authority
- CN
- China
- Prior art keywords
- expansion
- screw rod
- screw
- swivel nut
- nut
- 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
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to an adjustable screw rod type expansion screw for fixing pillars or railings of buildings. A central hole on the lower part of an expansion screw sleeve is a tapered hole which is matched with a tapered expansion plug movably. The screw rod is connected with the expansion screw sleeve by screw threads. The exposed length of the screw rod can be adjusted. The installation and the connection of workpieces can be kept to be smooth and firm.
Description
The utility model relates to the manufacturing of fastening piece class, specifically is a kind of adjusting screw formula swell fixture.
In construction industry, pillar for the steel grid structure building is fixed, fixing of stair railing and wall institute guard rail rod, owing to construction and other aspect reasons, give embedded part and depart from the mounting point often, can't fixation workpiece (pillar, railing) or welding work pieces by force, the result does not meet designing requirement, of poor quality, the 2nd, untidy attractive in appearance.Do not meet modern room and decorate requirement.In construction, most overlines adopt swell fixture to fix, because workpiece size and thickness differ, requirement has the screw of multiple different size to be complementary, and often adopts the screw of single length to reinforce different workpiece, directly influences fastness and working life, especially not attractive in appearance, the user is difficult to accept.
The utility model provides a kind of adjusting screw formula swell fixture, overcomes the defective that influences construction quality that existing swell fixture exists.
The utility model design proposal is described as follows: it includes the expansion swivel nut, expansion plug, screw rod, the pad nut, internal thread is arranged at expansion swivel nut top, the centre is equipped with center hole, afterbody is equipped with stop-return slot, and screw rod is connected with the pad nut thread with the expansion swivel nut respectively, and its structural feature is tapered hole, expansion swivel nut center hole bottom, expansion plug be taper and expansion swivel nut cone shape hole movingly, afterbody is equipped with stop-return slot.
The good effect of the utility model production is: the expansion swivel nut can single-piece by being loaded in body of wall or the carrier, constructing operation is convenient, press the optional corresponding length screw rod of the thickness attaching of workpiece, overcome in the construction to adopt and give embedded part and can not finely be connected and fixed pillar, the defective of railing is convenient to install and improve installation quality.
Below, in conjunction with the accompanying drawings and embodiments, details are as follows to technology contents of the present utility model:
Fig. 1 is the utility model topology view.
Fig. 2 is an expansion swivel nut tail end face view.
Expansion swivel nut of the present utility model 3 tops are equipped with internal thread, and threaded 1 is threaded, 4 tapered holes 7, lower central hole, and cone shape hole 7 and 6 concentric linking to each other of cross recess, afterbody is equipped with two annular stop-return slots 8 on the outer garden, as depicted in figs. 1 and 2.Expansion plug 5 is tapered, its external diameter is greater than the aperture of cone shape hole 6, with the cone shape hole 7 of expansion swivel nut 3 movingly, hammering expansion plug 4 is pressed into cone shape hole 7, fixed expansion swivel nut 3 is in body of wall or carrier, screw rod 1 screws in expansion swivel nut 3, exposes by the thickness requirement of workpiece (pillar or railing) and leaves respective length, by pad nut 2 workpiece that is tightened.
Claims (1)
1, a kind of adjusting screw formula swell fixture, it includes the expansion swivel nut, expansion plug, screw rod and pad nut, in the middle of the expansion swivel nut center hole is arranged, screw rod is threaded with pad nut and expansion swivel nut respectively, and swivel nut (3) center hole (4) bottom that it is characterized in that expanding is cone shape hole (7), expansion plug (5) tapered with expansion swivel nut (3) cone shape hole (7) movingly, afterbody is equipped with stop-return slot (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249440 CN2440968Y (en) | 2000-09-27 | 2000-09-27 | Adjustable screw rod style expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249440 CN2440968Y (en) | 2000-09-27 | 2000-09-27 | Adjustable screw rod style expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2440968Y true CN2440968Y (en) | 2001-08-01 |
Family
ID=33607882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249440 Expired - Fee Related CN2440968Y (en) | 2000-09-27 | 2000-09-27 | Adjustable screw rod style expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2440968Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334995A (en) * | 2013-06-25 | 2013-10-02 | 昆山生态屋建筑技术有限公司 | Self-locking expansion bolt |
| CN104314941A (en) * | 2014-08-26 | 2015-01-28 | 贵州航天新力铸锻有限责任公司 | Blind hole expansion bolt for connecting thermonuclear fusion reactor |
| CN105196246A (en) * | 2015-09-29 | 2015-12-30 | 河南航天精工制造有限公司 | Flaring locking tool for self-locking swivel nut and flaring connector used by same |
| CN109026936A (en) * | 2018-09-30 | 2018-12-18 | 中冶交通建设集团有限公司 | A kind of expansion bolt |
-
2000
- 2000-09-27 CN CN 00249440 patent/CN2440968Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334995A (en) * | 2013-06-25 | 2013-10-02 | 昆山生态屋建筑技术有限公司 | Self-locking expansion bolt |
| CN103334995B (en) * | 2013-06-25 | 2016-09-07 | 昆山生态屋建筑技术有限公司 | A kind of self-lock expansion bolt |
| CN104314941A (en) * | 2014-08-26 | 2015-01-28 | 贵州航天新力铸锻有限责任公司 | Blind hole expansion bolt for connecting thermonuclear fusion reactor |
| CN105196246A (en) * | 2015-09-29 | 2015-12-30 | 河南航天精工制造有限公司 | Flaring locking tool for self-locking swivel nut and flaring connector used by same |
| CN109026936A (en) * | 2018-09-30 | 2018-12-18 | 中冶交通建设集团有限公司 | A kind of expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |