CN2080081U - Reclaimable taper anchor - Google Patents
Reclaimable taper anchor Download PDFInfo
- Publication number
- CN2080081U CN2080081U CN 90226699 CN90226699U CN2080081U CN 2080081 U CN2080081 U CN 2080081U CN 90226699 CN90226699 CN 90226699 CN 90226699 U CN90226699 U CN 90226699U CN 2080081 U CN2080081 U CN 2080081U
- Authority
- CN
- China
- Prior art keywords
- taper
- anchor
- reclaimable
- bolt
- crab
- 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.)
- Withdrawn
Links
Abstract
The utility model relates to a reclaimable taper anchor composed of an anchor head and a taper rod. The reclaimable taper anchor has simple structure, simple processing and convenient operation. The taper rod has a conicity between 1: 20 and 1: 50, the small head part of the taper rod is engaged with the anchor head via threads, and the large head part of the taper rod is provided with axial inner thread mounting holes and a rotary push rod disassembly structure. The taper rod of the reclaimable taper anchor can be reclaimed for reuse, thus a large amount of steel can be saved, and construction cost is reduced. The reclaimable taper anchor can be matched with various anchor sleeve barrels to bear various loads, and the reclaimable taper anchor can be also used as a temporary anchor bolt for equipment or structure.
Description
The utility model belongs to construction and installation concrete construction technology field.
Will be with a large amount of anchor poles in large-sized concrete construction.Anchor pole is to be embedded in the concrete, and head exposes concrete surface or imbeds in the concrete surface, and head dress crab-bolt sleeve comes a hold mode to pull or erection equipment.At present the anchor pole that uses has bar with hooked end, snakelike reinforcing bar, fining twisted steel crab-bolt etc., and these anchor poles all cannot reclaim, and exposed parts with after need to cut off, residual steel bar end easily gets rusty and the corrosion concrete surface.Recently in addition with the isometrical bar crab-bolt of sleeve, can not reclaim with its anchor head of back and sleeve.A kind of callable anchor screw of the special production and supply of U.S. Hua Shengbomen company, but processed complex involves great expense.
The purpose of this utility model is to design a kind of simple in structure, handling ease, price is low, recovery is convenient and reusable ground tackle, saves steel, reduces construction costs and can make concrete surface avoid the infringement of steel corrosion simultaneously thereby reach.
The utility model is made up of anchor head, awl bar, crab-bolt sleeve and erection bolt etc.Anchor head is the steel plate of a kind of circle or axisymmetric shape (as regular polygon).Its planar dimension is 40～100 millimeters, and thickness is 30～60 millimeters, and central axis is to the hole that an internal thread is arranged; The awl bar is a steel pole with certain taper, its tapering is generally between 1:20～1:50, its little head has external screw thread, can mesh just with the internal thread of anchor head, enlarged head axially has the installing hole of an internal thread, can mesh with the external screw thread of erection bolt, enlarged head is made the awl bar detaching structure of outer-hexagonal or interior hexagonal, for rotation awl bar dismounting usefulness.The load that the effective length of awl bar (distance from the pressure-bearing surface of anchor head to concrete surface) should be born according to crab-bolt, the concrete strength when using and around constraints determine.The shape and size of crab-bolt sleeve are according to the needs and the design of load character of institute's installing component.During use, the little head that at first will bore bar is threaded in the anchor head screwed hole, imbeds in the concrete, and the big first end of awl bar can expose concrete surface or flush with concrete surface, and this decides as required.Treat that concrete reaches working strength and can use.With after pull down the awl bar, the hole of leaving in the concrete irritates real floating with pea gravel concreten or mortar, makes concrete surface bright and clean smooth.
The utility model is simple in structure, cost is low, can reclaim repeated use, thereby saves steel greatly, reduces construction costs, and applied range is if the various crab-bolt sleeves of adapted can bear the load of various character.
Description of drawings: accompanying drawing 1 is to be embedded in recuperable taper crab-bolt and the crab-bolt sleeve overall diagram that has assembled in the concrete.1 is anchor head among the figure, the 2nd, and awl bar, the 3rd, pouring concrete piece, the 4th, crab-bolt sleeve, the 5th, erection bolt.Anchor head 1 is a circular steel plate, and there is an internal thread hole vertically at the center.Awl bar 2 little heads have the internal thread engagement of external screw thread and anchor head 1, and its enlarged head has an axial internal thread hole, and with the external screw thread engagement of erection bolt 5, enlarged head also has the rotation awl bar detaching structure of an interior hexagonal or outer-hexagonal.The tapering of awl bar 2 is 1:20～1:50.The structure of crab-bolt sleeve 4 designs according to load type and size.
Embodiment: a kind of callable tapered crab-bolt of the utility model is used for mass concrete construction steel form is installed.The crab-bolt design load is 180,000 newton.Requirement is used when concrete strength reaches 10 MPas.The taper crab-bolt is embedded in following 0.3 meter, plane on the concrete after loading onto anchor head.Anchor head is circular, 62 millimeters of external diameters, and 40 millimeters of thickness, internal thread are M40.The tapering of awl bar is 1:22, and external screw thread φ of microcephaly portion 40 and enlarged head internal thread are M40.Awl bar total length is 590 millimeters.Hexagonal rotation awl bar detaching structure in awl bar enlarged head is established, spanner is of a size of 42 millimeters, and the degree of depth is 20 millimeters.The design's safety coefficient K=2.
Claims (3)
1, a kind of callable taper crab-bolt, formed by anchor head 1, awl bar 2, crab-bolt sleeve 4 and erection bolt 5, it is characterized in that: the central axis of anchor head 1 is to the hole that an internal thread is arranged, and with the microcephaly portion external screw thread engagement of awl bar 2, the tapering of awl bar 2 is 1: 2 θ～1: 5 θ.
2, a kind of callable taper crab-bolt according to claim 1, the profile that it is characterized in that anchor head 1 is circle or axisymmetric shape, and planar dimension is 40～100 millimeters, and thickness is 30～60 millimeters.
3, a kind of callable taper crab-bolt according to claim 1 is characterized in that the enlarged head of boring bar 2 axially has the installing hole of an internal thread to mesh with the external screw thread of erection bolt 5, also has the rotation awl bar detaching structure of an interior hexagonal or outer-hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226699 CN2080081U (en) | 1990-12-30 | 1990-12-30 | Reclaimable taper anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226699 CN2080081U (en) | 1990-12-30 | 1990-12-30 | Reclaimable taper anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2080081U true CN2080081U (en) | 1991-07-03 |
Family
ID=4903896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90226699 Withdrawn CN2080081U (en) | 1990-12-30 | 1990-12-30 | Reclaimable taper anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2080081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906850A (en) * | 2010-07-20 | 2010-12-08 | 重庆大学 | Special shearing-resistance anchor bolt pair for anchor group |
| CN106638980A (en) * | 2016-09-30 | 2017-05-10 | 中建三局集团有限公司 | Sectional type concrete screw rod capable of being taken out and using method thereof |
-
1990
- 1990-12-30 CN CN 90226699 patent/CN2080081U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906850A (en) * | 2010-07-20 | 2010-12-08 | 重庆大学 | Special shearing-resistance anchor bolt pair for anchor group |
| CN106638980A (en) * | 2016-09-30 | 2017-05-10 | 中建三局集团有限公司 | Sectional type concrete screw rod capable of being taken out and using method thereof |
| CN106638980B (en) * | 2016-09-30 | 2018-11-09 | 中建三局集团有限公司 | A kind of concrete embedded screw rod that segmented can be taken off and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |