CN103243715A - Coreless screw anchor - Google Patents
Coreless screw anchor Download PDFInfo
- Publication number
- CN103243715A CN103243715A CN201310206246XA CN201310206246A CN103243715A CN 103243715 A CN103243715 A CN 103243715A CN 201310206246X A CN201310206246X A CN 201310206246XA CN 201310206246 A CN201310206246 A CN 201310206246A CN 103243715 A CN103243715 A CN 103243715A
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- CN
- China
- Prior art keywords
- mandrel
- screw anchor
- coreless screw
- tube connector
- helical blade
- 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.)
- Pending
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- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a coreless screw anchor which is characterized by comprising a coreless screw blade, a connecting pipe and a connecting plate, wherein a notch is formed at one end of the coreless screw blade; one end of the connecting pipe is inserted into the notch; and the connecting plate is connected with and mounted at the other end of the connecting pipe. The coreless screw anchor has the advantages that the coreless screw anchor can adapt to various soil and lower the use cost.
Description
Technical field
The present invention relates to a kind of earth anchor, relate in particular to a kind of no mandrel screw anchor.
Background technology
At present, the pile of support of buildings mainly contains concrete pile and piling bar, and piling bar is divided into the stake of H type and steel pipe pile again by shape.Concrete pile is applicable to any building, and piling bar then is mainly used in light construction.But concrete pile needs maintenance, long construction period, destruction surface vegetation, and the feature of environmental protection is poor, thus at light construction thing (comprising green house of vegetables, solar bracket etc.) based on piling bar.Piling bar obtains support force by the frictional force of the vertical direction of its surface and soil, and this support force is smaller, has limited the scope of application of piling bar.Now, occurred a kind of mandrel spiral pile that has again, it is by at the external surface of pyramid type mandrel weldering spiral blade processed, increases the contact area with soil, has so just improved the support force of its pile.But its helical blade is easy to distortion when running into harder stratum, has limited the soil scope of using; And this have mandrel spiral pile to need special-purpose pile driver to finish the piling installation, increased use cost greatly.
Summary of the invention
At above problem, the object of the present invention is to provide a kind of no mandrel screw anchor that can adapt to various soil uses and can reduce use cost.
Technology contents of the present invention is: a kind of no mandrel screw anchor, it is characterized in that it comprises no mandrel helical blade, tube connector and junction plate, be provided with a recess at no mandrel helical blade one end, tube connector one end is inserted in the recess, tube connector other end connection junction plate.
The advantage that the present invention has is: patent has adopted following innovative design and method:
(1), adopt the design of no pyramid type mandrel, reduced the welding link of blade and pyramid type mandrel, improved support strength greatly.
(2), all on the central axis of earth anchor, whole helical blade self forms an axle center, makes support force remain on the same axle center of earth anchor, makes support force evenly distribute along the axle center center in the arbitrary cross section of no mandrel helical blade.
3, need not special-purpose pile driver in use and finish the piling installation, reduced use cost.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
As shown in Figure 1, a kind of no mandrel screw anchor is characterized in that it comprises no mandrel helical blade 1, tube connector 2 and junction plate 3, is provided with a recess 1.1 at no mandrel helical blade 1 one ends, tube connector 2 one ends are inserted in the recess 1.1, tube connector 2 other end connection junction plates 3.
Claims (1)
1. a no mandrel screw anchor is characterized in that it comprises no mandrel helical blade, tube connector and junction plate, is provided with a recess at no mandrel helical blade one end, and tube connector one end is inserted in the recess, tube connector other end connection junction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206246XA CN103243715A (en) | 2013-05-29 | 2013-05-29 | Coreless screw anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206246XA CN103243715A (en) | 2013-05-29 | 2013-05-29 | Coreless screw anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103243715A true CN103243715A (en) | 2013-08-14 |
Family
ID=48923567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310206246XA Pending CN103243715A (en) | 2013-05-29 | 2013-05-29 | Coreless screw anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103243715A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004277A (en) * | 2000-06-20 | 2002-01-09 | Koken Boring Mach Co Ltd | Ground anchor and penetration method thereof |
| EP1441076A1 (en) * | 2003-01-15 | 2004-07-28 | Jean Marie Renovation, SARL | Injectable micropile |
| CN101668898A (en) * | 2007-04-09 | 2010-03-10 | 后藤常郎 | Spiral steel pipe pile |
| CN202850016U (en) * | 2012-11-03 | 2013-04-03 | 王脉花 | Spiral steel plate pile |
| CN203238629U (en) * | 2013-05-29 | 2013-10-16 | 江阴中南重工股份有限公司 | Spiral ground anchor without center spindle |
-
2013
- 2013-05-29 CN CN201310206246XA patent/CN103243715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004277A (en) * | 2000-06-20 | 2002-01-09 | Koken Boring Mach Co Ltd | Ground anchor and penetration method thereof |
| EP1441076A1 (en) * | 2003-01-15 | 2004-07-28 | Jean Marie Renovation, SARL | Injectable micropile |
| CN101668898A (en) * | 2007-04-09 | 2010-03-10 | 后藤常郎 | Spiral steel pipe pile |
| CN202850016U (en) * | 2012-11-03 | 2013-04-03 | 王脉花 | Spiral steel plate pile |
| CN203238629U (en) * | 2013-05-29 | 2013-10-16 | 江阴中南重工股份有限公司 | Spiral ground anchor without center spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |