CN103206170A - Concrete body hole bottom reamer - Google Patents
Concrete body hole bottom reamer Download PDFInfo
- Publication number
- CN103206170A CN103206170A CN2013101354507A CN201310135450A CN103206170A CN 103206170 A CN103206170 A CN 103206170A CN 2013101354507 A CN2013101354507 A CN 2013101354507A CN 201310135450 A CN201310135450 A CN 201310135450A CN 103206170 A CN103206170 A CN 103206170A
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- CN
- China
- Prior art keywords
- reaming
- push rod
- sleeve
- concrete body
- reamer
- 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.)
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Abstract
The invention discloses a concrete body hole bottom reamer comprising an ejector rob and a sleeve. The ejector rob is movably arranged in the sleeve. The sleeve is hinged with at least two or more than two reaming blades at the lower position of the ejector rob. The upper end faces of the reaming blades are inclined faces, and gaps are formed between the reaming blades. The reaming blades are more stable while reaming, and accuracy of reaming is improved.
Description
Technical field
The present invention relates to a kind of concrete reaming bit.
Background technology
Desire is securely fixed in anchor pole in concrete structure or the rock, and a kind of effective method is will be at the bottom of the hole of anchor fixing hole to enlarge, and then anchor pole is inserted and add axial force its bottom is opened under the effect of wedge and to form effective mechanical self-latching.Realize said process, needs enlarge at the bottom of using reamer to the hole.
Enlarge at the bottom of generally using reamer to the concrete body opening, disclosed structure in traditional reamer such as the license notification number " CN2513746Y ", main by centrifugal reaming, the centrifugal force that rotates generation by drill bit at a high speed makes the reaming blade outwards open the cutting hole wall, thereby enlarges at the bottom of making the hole.This structure reaming blade in working angles makes blade not steady in reaming owing to receive bigger radial load, influences the precision of reaming.
Summary of the invention
At the deficiencies in the prior art, the invention provides reamer at the bottom of a kind of concrete body opening, blade is more steady in the process of reaming.
The present invention is achieved through the following technical solutions: reamer at the bottom of the concrete body opening, comprise push rod and sleeve, described push rod is movably set in the described sleeve, described sleeve is positioned at the hinged two or more at least reaming blades of push rod lower position, and described reaming blade upper surface is the inclined-plane, forms the gap between described reaming blade.
In the technique scheme, offer through hole in described push rod lower end, a straight-bar is fixed on the described sleeve by described through hole and described straight-bar two ends.
In the technique scheme, when leaning the reaming blade, described push rod make the reaming blade when the maximum deployed position, described reaming blade upper surface level.
The present invention has following beneficial effect: the reaming blade is more steady when reaming, has improved the precision of reaming.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the schematic diagram of push rod of the present invention.
Fig. 3 is the stress schematic diagram during for reaming of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the present invention is described in further detail: referring to Fig. 1 to Fig. 3, reamer at the bottom of the concrete body opening, comprise push rod 1 and sleeve 2, described push rod 1 is movably set in the described sleeve 2, described sleeve 2 is positioned at the hinged two or more at least reaming blades 20 of push rod 1 lower position, and be provided with in the hinged place and make reaming blade 20 can reset to the resetting means as the position among Fig. 1, namely be positioned at the position that flushes with sleeve lateral wall.Described resetting means can be torsion spring, is not defined as torsion spring certainly, also can be elastic components such as wind spring.
Described reaming blade 20 upper surfaces 200 are the inclined-plane, form the bore in the described gap 3 of gap 3(less than the bore of push rod 1 at described reaming blade 20 on 20 on described reaming blade).
Offer through hole 10, one straight-bars 21 in described push rod 1 lower end and be fixed on the described sleeve 2 by described through hole 10 and described straight-bar 21 two ends, as Fig. 1, when the reaming blade was in closed condition, described straight-bar 21 was positioned at the bottom of described through hole 10.
Promote push rod 1 during use and make push rod 1 enter the gap 3 of 20 formation of reaming blade, when described push rod 1 leans reaming blade 20 when making reaming blade 20 to maximum deployed position, described reaming blade 20 upper surfaces are level.This moment, straight-bar 21 leaned the top of through hole 10, made described straight-bar 21 can not continue to through hole deeply.
Referring to Fig. 3, when reaming, the power that the leans F3 that the pressure F2 that is given by concrete 1 that reaming blade 20 lateral walls are subjected to and push rod give reaming blade 20 inside walls makes reaming blade 20 stress balance in the horizontal direction, and have pressure F1(vertically downward that concrete bodies gives in described reaming blade 20 upper surfaces since this moment the upper surface level, so anhydrous square of component that makes progress of F1), make that like this blade can be in the reaming position by self-locking firmly, avoided the reaming blade when reaming, the situation of swing occurs easily.After reaming is finished, on draw push rod 1, the reaming blade automatically resets under the resetting means effect and the sleeve lateral wall flush position, this moment can extract reamer easily.
Claims (3)
1. reamer at the bottom of the concrete body opening, it is characterized in that: comprise push rod (1) and sleeve (2), described push rod (1) is movably set in the described sleeve (2), described sleeve (2) is positioned at push rod (1) the hinged two or more at least reaming blades of lower position (20), upper surface (200) at described reaming blade (20) is the inclined-plane, forms gap (3) between described reaming blade (20).
2. reamer at the bottom of the concrete body opening as claimed in claim 1, it is characterized in that: offer through hole (10) in described push rod (1) lower end, a straight-bar (21) is fixed on the described sleeve (2) by described through hole (10) and described straight-bar (21) two ends.
3. reamer at the bottom of the concrete body opening as claimed in claim 1 is characterized in that: when described push rod (1) leans reaming blade (20) when making reaming blade (20) to maximum deployed position, described reaming blade (20) upper surface (200) level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101354507A CN103206170A (en) | 2013-04-18 | 2013-04-18 | Concrete body hole bottom reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101354507A CN103206170A (en) | 2013-04-18 | 2013-04-18 | Concrete body hole bottom reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103206170A true CN103206170A (en) | 2013-07-17 |
Family
ID=48753557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101354507A Pending CN103206170A (en) | 2013-04-18 | 2013-04-18 | Concrete body hole bottom reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103206170A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735899A (en) * | 2016-04-12 | 2016-07-06 | 苏州市能工基础工程有限责任公司 | Drum drill for drilling anchor rod |
| CN106968604A (en) * | 2017-05-27 | 2017-07-21 | 河南理工大学 | Reamer inside mine anchor rod hole |
| CN106988773A (en) * | 2017-05-27 | 2017-07-28 | 河南理工大学 | Reduce the plant anchor pole method that suspension roof support slides unstability |
| CN107503692A (en) * | 2017-10-21 | 2017-12-22 | 洛阳大鸿海高新科技有限公司 | Multi-functional expansion bit |
| CN110469272A (en) * | 2019-07-31 | 2019-11-19 | 中国一冶集团有限公司 | A kind of construction of pile foundation casing follow-up step reaming and recyclable device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB200202A (en) * | 1922-04-07 | 1923-07-09 | Percy Brunt | Improvements in well boring apparatus |
| GB1184106A (en) * | 1967-04-18 | 1970-03-11 | John Darbyshire & Company Ltd | Improvements in or relating to Reamers |
| US20060118339A1 (en) * | 2003-04-11 | 2006-06-08 | Takhaundinov Shafagat F | Hole opener |
| CN102943681A (en) * | 2012-11-21 | 2013-02-27 | 天地科技股份有限公司 | Method and device for supporting weak adhesion bond soft rock roadway |
| CN203223175U (en) * | 2013-04-18 | 2013-10-02 | 宁波市镇海欣泰机械厂 | Concrete body opening bottom reamer |
-
2013
- 2013-04-18 CN CN2013101354507A patent/CN103206170A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB200202A (en) * | 1922-04-07 | 1923-07-09 | Percy Brunt | Improvements in well boring apparatus |
| GB1184106A (en) * | 1967-04-18 | 1970-03-11 | John Darbyshire & Company Ltd | Improvements in or relating to Reamers |
| US20060118339A1 (en) * | 2003-04-11 | 2006-06-08 | Takhaundinov Shafagat F | Hole opener |
| CN102943681A (en) * | 2012-11-21 | 2013-02-27 | 天地科技股份有限公司 | Method and device for supporting weak adhesion bond soft rock roadway |
| CN203223175U (en) * | 2013-04-18 | 2013-10-02 | 宁波市镇海欣泰机械厂 | Concrete body opening bottom reamer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735899A (en) * | 2016-04-12 | 2016-07-06 | 苏州市能工基础工程有限责任公司 | Drum drill for drilling anchor rod |
| CN105735899B (en) * | 2016-04-12 | 2018-05-25 | 苏州市能工基础工程有限责任公司 | Armature boring is bored with cylinder |
| CN106968604A (en) * | 2017-05-27 | 2017-07-21 | 河南理工大学 | Reamer inside mine anchor rod hole |
| CN106988773A (en) * | 2017-05-27 | 2017-07-28 | 河南理工大学 | Reduce the plant anchor pole method that suspension roof support slides unstability |
| CN106988773B (en) * | 2017-05-27 | 2018-04-20 | 河南理工大学 | Reduce the plant anchor pole method of suspension roof support sliding unstability |
| US10633927B2 (en) | 2017-05-27 | 2020-04-28 | Henan Polytechnic University | Internal reamer for anchor shaft hole for mining |
| CN107503692A (en) * | 2017-10-21 | 2017-12-22 | 洛阳大鸿海高新科技有限公司 | Multi-functional expansion bit |
| CN110469272A (en) * | 2019-07-31 | 2019-11-19 | 中国一冶集团有限公司 | A kind of construction of pile foundation casing follow-up step reaming and recyclable device |
| CN110469272B (en) * | 2019-07-31 | 2020-10-23 | 中国一冶集团有限公司 | Reaming and recovering device for pile foundation casing follow-up construction |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130717 |