CN104972020A - Pile head bar straightening wrench - Google Patents
Pile head bar straightening wrench Download PDFInfo
- Publication number
- CN104972020A CN104972020A CN201510395962.6A CN201510395962A CN104972020A CN 104972020 A CN104972020 A CN 104972020A CN 201510395962 A CN201510395962 A CN 201510395962A CN 104972020 A CN104972020 A CN 104972020A
- Authority
- CN
- China
- Prior art keywords
- straightening
- wrench
- tension hook
- hook
- draw
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/02—Straightening
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a pile head bar straightening wrench comprising a main force rod, a force-exerting point neck and a tension hook. The pile head bar straightening wrench is characterized in that the force-exerting point neck is welded on the end head of the main force rod; a straight end of the tension hook is welded on the main force rod; a hook end of the tension hook is arranged over the force-exerting point neck; a to-be-straightened reinforcing bar is hooked by the force-exerting point neck, so a fulcrum is provided for tension hook stress; during the operation, stress is applied to the other end of the main force rod; and by the use of a lever principle, the bend reinforcing bar exposed out of the pile head is straightened. The lever principle is employed in the invention; two wrenches are required for bend points of the suspension part; the bend point of the main reinforcing bar root part exposed out of the pile head requires only one wrench; the wrench can be manufactured by waste material; the straightening wrench solves a difficulty that other straightening devices cannot straighten the bend points by one device; and the straightening wrench can be simply operated and speed up construction speed.
Description
Technical field
The invention belongs to engineering construction field, relate to after filling pile head is abolished and expose main muscle straightening field, particularly a kind of pile crown bar straightening spanner.
Background technology
At present, engineering field many employings bored concrete pile is as buildings or structures basis, and pile body reinforcing bar need enter superstructure; For ensureing pile crown concrete strength, during cast bored concrete pile, bored concrete pile top mark is high higher than the high 0.5 ~ 1.0m of design stake top mark, should be reached after some strength until pile body concrete and will be cut higher than design stake top level section pile crown.After bored concrete pile abolishes pile crown concrete, inevitably causing design stake top mark high is irregular curved shape with upper part reinforcing bar.At present comparatively conventional bar straightening method has: 1, make " F " shape spanner straightening method by oneself, 2, hydraulic pressure straightening bending apparatus straightening method, 3, oxygen, acetylene baking straightening method.When pile crown single steel bar occurs that multistage bends, self-control " F " shape spanner and hydraulic pressure straightening bending apparatus all cannot complete separately straightening work, adopt oxygen, acetylene to toast and then impact reinforcement property.
Summary of the invention
Object of the present invention in order to overcome above-mentioned prior art Problems existing and shortcoming, and provides a kind of pile head bar straightening spanner.The present invention, without the need to too much input, makes material and the reinforcing bar waste material in work progress can be utilized to process.
Technical scheme of the present invention is:
Pile crown bar straightening spanner, comprise main force rod, impetus draw-in groove, tension hook, it is characterized in that: main force rod termination is welded force draw-in groove, the flat end of tension hook is welded in main force rod, and the hook end of tension hook is positioned at above impetus draw-in groove.Impetus draw-in groove blocks needing the reinforcing bar of straightening, provides fulcrum for tension hook is stressed, applies stress, utilize the moment reinforcement bar straightening that pile crown exposes by lever principle during operation to main force rod end.
Described impetus draw-in groove width is 35mm, and the degree of depth is 50mm.
The hook end bending radius of described tension hook is 25mm, and the flat end of tension hook and main force rod adopt two-sided welding, and fusion length is 100mm.
The crotch center of circle of described tension hook is corresponding with the middle point vertical of impetus draw-in groove, and tension hook and impetus draw-in groove distance are 300mm.
The present invention mainly adopts lever principle, and the bending point for hanging part needs two spanner coordinative constructions, and the bending point of moment reinforcement root only needs a spanner.The making of spanner of the present invention can utilize waste material to process.The invention solves the difficult problem that other machine straightening devices cannot complete separately the straightening work of all bending points, simultaneously simple to operate, can speed of application be accelerated.
Accompanying drawing explanation
Fig. 1 is Facad structure schematic diagram of the present invention.
Fig. 2 is plan structure schematic diagram of the present invention.
Fig. 3 is structural representation of the present invention;
Fig. 4 is for using straightening reinforcement construction schematic diagram of the present invention.
Detailed description of the invention
The invention will be further described by reference to the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3 shows, the present invention includes main force rod 1, impetus draw-in groove 2, tension hook 3, it is characterized in that: main force rod 1 termination is welded force draw-in groove 2, the flat end of tension hook 3 is welded in main force rod 1, adopt two-sided welding, fusion length is 100mm; And the crotch end of tension hook 3 is positioned at above impetus draw-in groove 2, the crotch center of circle of tension hook 3 is vertical corresponding with the central point of impetus draw-in groove, and tension hook 3 and impetus draw-in groove 2 are apart from being 300mm, and impetus draw-in groove 2 width is 35mm, the degree of depth is 50mm, and the hook end bending radius of tension hook is 25mm.Impetus draw-in groove 2 blocks needing the reinforcing bar of straightening, provides fulcrum for tension hook 3 is stressed, applies stress, utilize the moment reinforcement bar straightening that pile crown exposes by lever principle during operation to main force rod 1 end.
As shown in Figure 4, when straightening is carried out to the bending point of pile crown reinforcing bar hanging part, use two spanners of the present invention, first the impetus draw-in groove of spanner I is aimed at bar bending point, then tension hook is caught on bar bending point top; After spanner I is in place, the tension hook of spanner II is caught on bending point, the impetus draw-in groove of spanner II blocks bending point lower rebar; During operation, two spanners should be symmetrical arranged, and apply downward power to spanner I, according to the size of the case of bending adjustment applying power of this bending point, ensure that spanner II is motionless simultaneously, thus can by the straightening of bar bending position.When straightening is carried out to pile crown reinforcing bar root bending point, only need a spanner of the present invention to press aforesaid operations and perform.Successively the straightening construction that straightening operation can complete all bending points of single steel bar is carried out to each bending point by above step.
Claims (4)
1. a pile crown bar straightening spanner, comprise main force rod, impetus draw-in groove, tension hook, it is characterized in that: main force rod termination is welded force draw-in groove, the flat end of tension hook is welded in main force rod, and the hook end of tension hook is positioned at above impetus draw-in groove.
2. pile crown bar straightening spanner according to claim 1, is characterized in that: described impetus draw-in groove width is 35mm, and the degree of depth is 50mm.
3. pile crown bar straightening spanner according to claim 1, is characterized in that: the hook end bending radius of described tension hook is 25mm, and the flat end of tension hook and main force rod adopt two-sided welding, and fusion length is 100mm.
4. pile crown bar straightening spanner according to claim 1, is characterized in that: the crotch center of circle of described tension hook is corresponding with the middle point vertical of impetus draw-in groove, and tension hook and impetus draw-in groove distance are 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395962.6A CN104972020A (en) | 2015-07-07 | 2015-07-07 | Pile head bar straightening wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395962.6A CN104972020A (en) | 2015-07-07 | 2015-07-07 | Pile head bar straightening wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104972020A true CN104972020A (en) | 2015-10-14 |
Family
ID=54269298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510395962.6A Pending CN104972020A (en) | 2015-07-07 | 2015-07-07 | Pile head bar straightening wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104972020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726419A (en) * | 2021-01-13 | 2021-04-30 | 中建八局第一建设有限公司 | Beam body flange plate embedded steel bar correcting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2740435A (en) * | 1952-09-26 | 1956-04-03 | Henry J Pritts | Hand operated wire straightening tool |
| FR2549399A1 (en) * | 1983-07-19 | 1985-01-25 | Mure Ets | Tool for straightening out or shaping profiles, especially reinforcing members, embedded at one end. |
| CN201427164Y (en) * | 2009-04-16 | 2010-03-24 | 中铁六局集团有限公司 | Pile head reinforcement bar straightener |
| CN202202570U (en) * | 2011-08-25 | 2012-04-25 | 安徽华力建设集团有限公司 | Reinforcement bar strengthener |
| CN202621774U (en) * | 2012-05-23 | 2012-12-26 | 中建七局第一建筑有限公司 | Steel-bar straightening righting spanner |
| CN204248751U (en) * | 2014-07-28 | 2015-04-08 | 中建七局安装工程有限公司 | Construction reinforcing bar is discounting straightening spanner with one heart |
| CN204912601U (en) * | 2015-07-07 | 2015-12-30 | 中建三局第二建设工程有限责任公司 | Pile head bar straightening spanner |
-
2015
- 2015-07-07 CN CN201510395962.6A patent/CN104972020A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2740435A (en) * | 1952-09-26 | 1956-04-03 | Henry J Pritts | Hand operated wire straightening tool |
| FR2549399A1 (en) * | 1983-07-19 | 1985-01-25 | Mure Ets | Tool for straightening out or shaping profiles, especially reinforcing members, embedded at one end. |
| CN201427164Y (en) * | 2009-04-16 | 2010-03-24 | 中铁六局集团有限公司 | Pile head reinforcement bar straightener |
| CN202202570U (en) * | 2011-08-25 | 2012-04-25 | 安徽华力建设集团有限公司 | Reinforcement bar strengthener |
| CN202621774U (en) * | 2012-05-23 | 2012-12-26 | 中建七局第一建筑有限公司 | Steel-bar straightening righting spanner |
| CN204248751U (en) * | 2014-07-28 | 2015-04-08 | 中建七局安装工程有限公司 | Construction reinforcing bar is discounting straightening spanner with one heart |
| CN204912601U (en) * | 2015-07-07 | 2015-12-30 | 中建三局第二建设工程有限责任公司 | Pile head bar straightening spanner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726419A (en) * | 2021-01-13 | 2021-04-30 | 中建八局第一建设有限公司 | Beam body flange plate embedded steel bar correcting device |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |