CN2547936Y - New-type multi-stage expansion bolt - Google Patents
New-type multi-stage expansion bolt Download PDFInfo
- Publication number
- CN2547936Y CN2547936Y CN 02232538 CN02232538U CN2547936Y CN 2547936 Y CN2547936 Y CN 2547936Y CN 02232538 CN02232538 CN 02232538 CN 02232538 U CN02232538 U CN 02232538U CN 2547936 Y CN2547936 Y CN 2547936Y
- Authority
- CN
- China
- Prior art keywords
- expand tube
- expansion
- screw rod
- anchor bolts
- expansion anchor
- 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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Abstract
The utility model provides a novel multistage back berm expansion bolt and is a fixed connecting piece formed by adopting back berms. The prior plug bolt is of just firstlevel expansion. If the intensity of the plug bolt is low, the connecting piece can not be fixed. The utility model comprises a center screw rod 1, a nut flange and a gasket 3 which are arranged on the center screw rod, and a stop lever 4; the center rod 1 is provided with a group (four) of expansion pipes 6 in turn, the expansion pipes are in turn a, b, c, and d. The end head of the screw rod is provided with a spigot shoulder 5. The utility model is used as the plug bolt when multiple stable fixing with long distance is needed.
Description
Technical field: the utility model relates to a kind of suspention securing means is installed, and particularly can deal with the securing means of super large pulling force.
Background technique: at present traditional EXPANSION ANCHOR BOLTS by a wedge shape screw rod, join circular expand tube, pad, compression spring and a nut and form.During operation, on body of wall or ceiling, bore a hole identical with the EXPANSION ANCHOR BOLTS external diameter, EXPANSION ANCHOR BOLTS is inserted, be inserted in fixation, screw nut, make between expander roll and the expand tube axial displacement takes place, under the effect of expander roll tail end wedge shape termination, expand tube tail end generation radial displacement and produce expansion, the inwall in hole produces reaction to expanding, and EXPANSION ANCHOR BOLTS is fixed in the hole firmly.Yet in actual applications, traditional EXPANSION ANCHOR BOLTS is owing to implement the material difference of operation, and the anti-pulling ability is also different, and how long no matter traditional bolt have, owing to be subjected to the restriction of himself structure to produce expansive force, and be along a stubble state with being subjected to force direction in the part of termination.Therefore its structure itself just defines tensile strength, has also limited the installation bearing capacity of suspension.
Summary of the invention: the purpose of this utility model provides EXPANSION ANCHOR BOLTS in an opposite direction of a kind of new multistage, can multistage expansion and make stable fastening of bolt with the form of clashing.
Above-mentioned purpose realizes by following technological scheme:
New multistage is clashed EXPANSION ANCHOR BOLTS, and its composition comprises: center bolt and nut thereof, be with one group of expand tube on the described center bolt in regular turn, and one section of described expand tube has the mouth that expands, and there is the non-return shoulder termination of described screw rod.
Described new multistage is clashed EXPANSION ANCHOR BOLTS, and described bloated mouthful of direction is towards screw thread one side, and described non-return shoulder is hemisphere.
Described new multistage is clashed EXPANSION ANCHOR BOLTS, and the length of described every expand tube is 5-15cm, and its length that expands mouth is the 2/3-1/2 of expand tube length, and there is the stress dispersion hole its termination, and both sides are the inclined-plane.
This technological scheme has following beneficial effect:
1. the generation expansion no longer is the motion between screw rod and the expand tube, but the motion between expand tube and the expand tube.
2. have the multistage expansion function, resistance to tension is reached to greatest extent.
3. the expansion that is produced is not only multipole, and the direction of pulling force also is down in an opposite direction state, has self-locking action, makes fastening more reliable.
4. have flexibility very, can reach controlled requirement fully according to selecting voluntarily according to the body situation, make to install.
5. our factory's product have not only overcome the deficiency of conventional expanded bolt, and it is to select the quantitative control of bolt according to construction requirement arbitrarily by qualitative control transformation that what is more important makes the suspention installing engineering.
Accompanying drawing 1 is the off working state structural representation of this product.
Accompanying drawing 2 is working state structure schematic representation of this product.
Accompanying drawing 3 is sections of expand tube.Accompanying drawing 4 is stereograms of expand tube.
Accompanying drawing 5 is the working state figure of this product in defective hole.
Further specify below in conjunction with accompanying drawing:
Embodiment 1:
New multistage is clashed EXPANSION ANCHOR BOLTS, its composition comprises: center bolt 1 is installed in nut 2 pads 3 and the pin 4 on this screw rod, being with one group of expand tube 6 on the described center bolt 1 in regular turn arranges in regular turn and is a, b, c, d, one section of described expand tube 6 has expand mouth or the bloated sour jujube 7 of title, and there is non-return shoulder 5 termination of described screw rod 1.
Embodiment 2:
Described new multistage is clashed EXPANSION ANCHOR BOLTS, and described bloated mouthful of 7 directions are towards screw thread one side, and described non-return shoulder 5 is a hemisphere.
Embodiment 3:
Described new multistage is clashed EXPANSION ANCHOR BOLTS, and the length of described every expand tube 6 is 5-15cm, and its length that expands mouth 7 is the 2/3-1/2 of expand tube length, and there is the stress dispersion hole its termination, and both sides are the inclined-plane.
This product is compared with traditional EXPANSION ANCHOR BOLTS, the expander roll of upset bolt and expand tube no longer are corresponding relations one by one, a screw rod can be joined the expand tube of a plurality of equivalent diameter, the length of screw rod is determined according to specific circumstances by the workmen, and the number of expand tube is by the length decision of selected screw rod, therefore, this product has very wide adaptability.At first, the expansive force that expand tube expands distortion no longer derives from the wedge shape termination of screw rod, and comes from the inclined-plane of wedge shape and wedge shape.Secondly, shorten the length of expand tube, made it in the length of conventional expanded bolt, be inserted in a plurality of expand tubes, produced multistage expansion, strengthened tensile strength.The 3rd, the expansion direction of this product is opposite with the expansion direction of traditional product, and stress becomes state in an opposite direction.The pulling force that makes this product be subjected to is big more, and the support force that expand tube produces between hole wall is also big more, and tensile strength is also big more.Working principle is: when the user to after the structure of installing being calculated pulling force, according to the number of this data computation expand tube, according to the length L of the number decision bolt of expand tube to carrier.
When screwing nut 2, distance shortens between figure mid point α and the β, expand tube a, b, c, d are subjected to axial pressure, producing extruding under the ramp effect of two ends between the expand tube, the one end produces multistage radial expansion, when bloated sour jujube 7 after hole wall contact, hole wall produces reaction forces to the sour jujube 7 of expanding, and this product is fixed in the hole.
Before implementing to install,, just can select corresponding EXPANSION ANCHOR BOLTS, the suspention installing engineering is in a kind of quantitative controllable state fully as long as engineers and technicians estimate and are subjected to intensity of force.
If the body of wall defect situation takes place, its working state is seen Fig. 5.Therefore, this product can use various installation environments, it is the usage mode that has the wideest adaptability of superior performance and flexibility in the existing EXPANSION ANCHOR BOLTS, with regard to performance, he compares with the conventional expanded bolt of same length according to unrivaled tensile strength is arranged, with regard to adaptability, its resistance to tension no longer is subjected to the restriction of carrier material condition, carrier to any material carries out quantitative tension installation, with regard to flexibility, require big and the restricted installation conditions of thickness for similar pulling force, the utility model can be used.
Claims (3)
1, a kind of new multistage is clashed EXPANSION ANCHOR BOLTS, and its composition comprises: center bolt and nut thereof is characterized in that: be with one group of expand tube on the described center bolt in regular turn, an end of described expand tube has the mouth that expands, and there is the non-return shoulder termination of described screw rod.
2, the multistage EXPANSION ANCHOR BOLTS of clashing according to claim 1, it is characterized in that: described bloated mouthful of direction is towards screw thread one side, and described non-return shoulder is hemisphere.
3, the multistage EXPANSION ANCHOR BOLTS of clashing according to claim 1 and 2, it is characterized in that: described every expand tube length is 5-15cm, and its mouthful length that expands is the 2/3-1/2 of expand tube length, and there is the stress dispersion hole its termination, and both sides are the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232538 CN2547936Y (en) | 2002-04-16 | 2002-04-16 | New-type multi-stage expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232538 CN2547936Y (en) | 2002-04-16 | 2002-04-16 | New-type multi-stage expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2547936Y true CN2547936Y (en) | 2003-04-30 |
Family
ID=33707902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02232538 Expired - Fee Related CN2547936Y (en) | 2002-04-16 | 2002-04-16 | New-type multi-stage expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2547936Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008031271A1 (en) * | 2006-09-11 | 2008-03-20 | Bin Qu | Anchor bolt for architecture |
| CN101961916A (en) * | 2010-10-21 | 2011-02-02 | 张士生 | Suspension type bottle blank tube elastic connector |
| CN107314024A (en) * | 2017-08-24 | 2017-11-03 | 李树峰 | A kind of fastening assembly |
-
2002
- 2002-04-16 CN CN 02232538 patent/CN2547936Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008031271A1 (en) * | 2006-09-11 | 2008-03-20 | Bin Qu | Anchor bolt for architecture |
| CN101961916A (en) * | 2010-10-21 | 2011-02-02 | 张士生 | Suspension type bottle blank tube elastic connector |
| CN107314024A (en) * | 2017-08-24 | 2017-11-03 | 李树峰 | A kind of fastening assembly |
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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 |