CN201991894U - Rapid expansion foundation bolt - Google Patents
Rapid expansion foundation bolt Download PDFInfo
- Publication number
- CN201991894U CN201991894U CN2011200314231U CN201120031423U CN201991894U CN 201991894 U CN201991894 U CN 201991894U CN 2011200314231 U CN2011200314231 U CN 2011200314231U CN 201120031423 U CN201120031423 U CN 201120031423U CN 201991894 U CN201991894 U CN 201991894U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- semicircle
- tensioning
- foundation bolt
- boss
- 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
Links
- 230000000875 corresponding Effects 0.000 claims abstract description 4
- 239000004575 stone Substances 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000750 progressive Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Abstract
The utility model belongs to parts for installing mechanical equipment, and particularly relates to a rapid expansion foundation bolt, which comprises a nut (2), a spring washer (3) and a flat washer (4). The left end of a tension screw (1) of the rapid expansion foundation bolt is provided with a semicircular staggered boss (1-1); an outer sleeve (5) is sleeved on the tension screw (1); a position at the left end of the outer sleeve (5) corresponding to the semicircular staggered boss (1-1) is provided with a semicircular staggered inner hole (5-4); the outer circumference of the semicircular staggered inner hole (5-4) is respectively provided with a plurality of outer sleeve tension blades (5-1) and a plurality of outer sleeve expansion elastic grooves (5-3); the outer sleeve tension blades (5-1) are provided with a plurality of outer sleeve antislip bumps (5-2); and the flat washer (4) and the spring washer (3) are sequentially sleeved at the right end of the tension screw (1). The rapid expansion foundation bolt is more reasonable in structure, and rapider and more convenient in disassembly and assembly.
Description
Technical field
The utility model belongs to machinery installation component, particularly a kind of rapid expanding stone bolt.
Background technique
Present existing expansion stone bolt has two kinds of forms, and a kind of is to make between diameter progressive screw and the expansion sleeve by swivel nut to form axial displacement and realize that expansion sleeve expands outward, and another kind is to realize that by suppressing taper pin the overcoat expansion tensioning of EXPANSION ANCHOR BOLTS fixes.But these two kinds of expansion stone bolt degree of depth that nut screws in the practical engineering application process is uncontrollable, served as when dark, the screw thread that screw rod exposes is too much, and perhaps the amount of exposing of taper pin is big, the capital brings inconvenience to its follow-up construction, often needs secondary machine that it is machined away.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, and a kind of simple in structure, dismounting rapid expanding stone bolt easily is provided.
The technological scheme that the utility model technical solution problem adopts is: the rapid expanding stone bolt comprises nut, compression spring, flat gasket, the left end that is characterized in the tensioning screw of rapid expanding stone bolt is provided with semicircle stagger mode boss, outer sleeve of suit on the tensioning screw, the outer sleeve left end is provided with semicircle stagger mode endoporus corresponding to the position of semicircle stagger mode boss, be respectively equipped with several outer sleeve tensioning blades and several outer sleeve expansion elastic grooves on the excircle of semicircle stagger mode endoporus, outer sleeve tensioning blade is provided with the anti-skidding projection of several outer sleeves, the right-hand member of tensioning screw is suit flat gasket and compression spring successively, is fixed on nut check on the right side of outer sleeve.
The beneficial effects of the utility model are: the rapid expanding stone bolt is realized the tensioning of EXPANSION ANCHOR BOLTS by the staggered boss expansion outer sleeve tensioning blade of the semicircle of tensioning screw, change original principle that realizes tensioning by the axial relative displacement between external force generation screw rod and the expansion sleeve, structure more is tending towards rationally, and dismounting is rapid and convenient more.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the structural drawing of rapid expanding stone bolt.
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure, the 1-tensioning screw; 1-1-semicircle stagger mode boss; The 2-nut; The 3-compression spring; The 4-flat gasket; The 5-outer sleeve; 5-1-outer sleeve tensioning blade; The anti-skidding projection of 5-2-outer sleeve; 5-3-outer sleeve expansion elastic groove; 5-4-semicircle stagger mode endoporus;
Embodiment
Embodiment, with reference to accompanying drawing 1,2, tensioning screw 1 left end of rapid expanding stone bolt is provided with semicircle stagger mode boss 1-1, outer sleeve 5 of suit on the tensioning screw 1.The left end of outer sleeve 5 is provided with semicircle stagger mode endoporus 5-4 corresponding to the position of semicircle stagger mode boss 1-1, be respectively equipped with four outer sleeve tensioning blade 5-1 and four outer sleeve expansion elastic groove 5-3 on the excircle of semicircle stagger mode endoporus 5-4, outer sleeve tensioning blade 5-1 is provided with the anti-skidding projection 5-2 of several outer sleeves.The right-hand member of tensioning screw 1 is suit flat gasket 4 and compression spring 3 successively, is locked on the right side of outer sleeve 5 with nut 2.
The working principle of rapid expanding stone bolt is: the semicircle stagger mode endoporus 5-4 internal surface of the semicircle stagger mode boss 1-1 outer surface of tensioning screw 1 left end and outer sleeve 5 left ends is coupled, when screwing nut 2, nut 2 increases gradually with tensioning screw 1 screw-thread fit place interface pressure, after pressure reaches certain critical value, realize the rotation of tensioning screw 1, and outer sleeve 5 since anti-skidding projection 5-2 of outer sleeve and effect that frictional force between the inwall of basic hole is installed can not rotate, and then facilitate relatively rotating of tensioning bolt 1 left end semicircle stagger mode boss 1-1 and outer sleeve 5 left end semicircle stagger mode endoporus 5-4, realize the tensioning of rapid expanding stone bolt.
Claims (1)
1. rapid expanding stone bolt, comprise nut (2), compression spring (3), flat gasket (4), the left end that it is characterized in that the tensioning screw (1) of rapid expanding stone bolt is provided with semicircle stagger mode boss (1-1), tensioning screw (1) is gone up an outer sleeve of suit (5), outer sleeve (5) left end is provided with semicircle stagger mode endoporus (5-4) corresponding to the position of semicircle stagger mode boss (1-1), be respectively equipped with several outer sleeve tensioning blades (5-1) and several outer sleeve expansion elastic grooves (5-3) on the excircle of semicircle stagger mode endoporus (5-4), outer sleeve tensioning blade (5-1) is provided with the anti-skidding projection of several outer sleeves (5-2), the right-hand member of tensioning screw (1) is suit flat gasket (4) and compression spring (3) successively, is locked on the right side of outer sleeve (5) with nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200314231U CN201991894U (en) | 2011-01-27 | 2011-01-27 | Rapid expansion foundation bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200314231U CN201991894U (en) | 2011-01-27 | 2011-01-27 | Rapid expansion foundation bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991894U true CN201991894U (en) | 2011-09-28 |
Family
ID=44668383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200314231U Expired - Fee Related CN201991894U (en) | 2011-01-27 | 2011-01-27 | Rapid expansion foundation bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829052A (en) * | 2012-09-20 | 2012-12-19 | 力帆实业(集团)股份有限公司 | Fastening connecting component of vehicle plastic part |
-
2011
- 2011-01-27 CN CN2011200314231U patent/CN201991894U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829052A (en) * | 2012-09-20 | 2012-12-19 | 力帆实业(集团)股份有限公司 | Fastening connecting component of vehicle plastic part |
| CN102829052B (en) * | 2012-09-20 | 2014-09-17 | 力帆实业(集团)股份有限公司 | Fastening connecting component of vehicle plastic part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20120127 |