CN108862081A - A kind of chain block crane boom and the application in the adjusting of beam steel protective layer thickness - Google Patents
A kind of chain block crane boom and the application in the adjusting of beam steel protective layer thickness Download PDFInfo
- Publication number
- CN108862081A CN108862081A CN201810667515.5A CN201810667515A CN108862081A CN 108862081 A CN108862081 A CN 108862081A CN 201810667515 A CN201810667515 A CN 201810667515A CN 108862081 A CN108862081 A CN 108862081A
- Authority
- CN
- China
- Prior art keywords
- chain block
- cross bar
- crane boom
- lower tube
- brackets
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0116—Manually or spring operated winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0183—Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A kind of chain block crane boom, including chain block, two brackets, Π shape cross bar, it is characterised in that：The chain block is round chain block, and described two brackets are shape, identical a pair of of the steel pipe support of size, and steel pipe support is interconnected and fixed by lower tube and standpipe, lower tube and standpipe in inverted T-shaped, and the Π shape cross bar is C32 reinforcing bar, wherein：The lower tube of two brackets is spaced apart to be arranged in parallel, so that the bending two ends bar of Π shape cross bar can be inserted into the top nozzle of two bracket standpipes, chain block is hooked on the middle part of Π shape cross bar.The present invention is simple with chain block crane boom structure, production assembles, convenient disassembly; it is easy to carry, mobile; template, the reinforcing bar of lower part is effectively protected; it can be quickly by adjusting beam muscle position; the advantages of completing the change of the protective layer thickness of beam muscle side and bottom, the recycling of chain block crane boom and reduction engineering cost.
Description
Technical field
The present invention relates to a kind of chain block crane booms, specifically, being a kind of chain block crane boom and in beam steel
Application in protective layer thickness adjusting.
Background technique
The importance of the cover to reinforcement of reinforced concrete member is self-evident.It is resistance in order to meet concrete component
Long property, fire line and the requirement that steel bar stress is effectively anchored, relevant specification of country to the protective layer thickness under all kinds of environment all
Stringent regulation is done.Protective layer is excessively thin, and surface concrete peels off when on the one hand be easy to causeing dew muscle or reinforcing steel bar bear；Another party
Face, with the gradually carbonization of surface concrete, reinforcing bar is premature to be corroded, and cross-sectional area reduces, strength reduction；With concrete
Encapsulation reduce, globality is destroyed, and causes biggish structure security risk.
In reinforced concrete member, beam is because of its section feature（It is not only narrow but also high, can operating space it is narrow, the ratio of reinforcement compared with
Greatly）, lower protective layer is excessively thin when beam steel being caused to be installed（Or cushion block placement is not in place）, beam muscle position deviation（That is beam sides
Protect interlamellar spacing uneven）The case where happen occasionally.Many engineering beam bottom large area reveal muscle, are that protective layer thickness is not controlled
（Even without protective layer）Caused by.So before concreting, it is necessary to be adjusted to beam tendon protective layer, be set with meeting
Count the requirement of drawing and specification.
Finished when beam is indulged muscle, stirrup etc. and bound, primary-secondary beam has also mutually anchored, when beam section is smaller and upper load not
When big, beam muscle position can be changed with tools such as crowbars, complete rectifying and improving.But encounter ground library raft plate, top plate, deep basal pit
The beam at the positions such as reinforced concrete support, section is larger, and beam muscle is integrally heavier, and crowbar makes not energetically, to be also easy to destroy template（It makes
It does over again at secondary）, tower crane can not be used directly to lift by crane（Hoisting weight is limited, and be easy to cause great security risk）, whole
Change and just falls into difficulty.
Therefore known beam tendon protective layer thickness adjustment device there are problems that it is above-mentioned various inconvenient and.
Summary of the invention
The purpose of the present invention is to propose a kind of safe and reliable chain block crane boom.
It is another object of the present invention to propose that a kind of safe and reliable chain block crane boom is thick in beam steel protective layer
Application in degree adjusting.
To achieve the above object, the technical solution of the invention is as follows：
A kind of chain block crane boom, including chain block, two brackets, Π shape cross bar, it is characterised in that：
The chain block is round chain block, and shell is superior alloy steel, firm wear-resisting；
Described two brackets are identical a pair of of the steel pipe supports of shape, size, steel pipe support by lower tube and standpipe, lower tube with
Standpipe is interconnected and fixed in inverted T-shaped, and the top of standpipe is opening, is equipped with the oblique of left and right arrangement in lower tube and standpipe junction
Strut, with enhancing structure intensity；
The Π shape cross bar is C32 reinforcing bar, the long 200mm of bending two ends bar of Π shape cross bar, the long 750mm in middle section；
Wherein：The lower tube of two brackets is spaced apart to be arranged in parallel, so that the bending two ends bar of Π shape cross bar can be inserted into
In the top nozzle of two bracket standpipes, to connect two brackets, chain block is hooked on the middle part of Π shape cross bar；It is vertical at two
It is horizontal between pipe top to set up a cross bar, the long 1000mm of cross bar, and fastened respectively with two standpipes with cruciform fastening for falsework.
Chain block crane boom of the invention can also be further achieved by the following technical measures.
Chain block crane boom above-mentioned, wherein the chain block rated load weight is >=5t.
Chain block crane boom above-mentioned, wherein the steel pipe is 48 × 3.5mm steel pipe.
Chain block crane boom above-mentioned, wherein the hound and the angle of lower tube are 60 °.
A kind of application of chain block crane boom in the adjusting of beam steel protective layer thickness.
After adopting the above technical scheme, chain block crane boom of the invention and in the adjusting of beam steel protective layer thickness
Using having the following advantages that：
1, chain block crane boom structure is simple, production assembles, convenient disassembly, easy to carry, mobile；
2, supporting point of the bracket as cucurbit, and bearing capacity is dispersed, template, the reinforcing bar of lower part is effectively protected, and due to hand
Drawing cucurbit is manual operation, and work is not influenced by conditions such as electric power, can complete beam muscle quickly by adjusting beam muscle position
The change of the protective layer thickness of side and bottom；
3, chain block crane boom can reuse, and reduce engineering cost.
Detailed description of the invention
Fig. 1 is the chain block crane boom structural schematic diagram of the embodiment of the present invention.
In figure：1 lower tube, 2 hounds, 3 standpipes, 4 cross bars, 5 Π shape cross bars, 6 chain blocks.
Specific embodiment
With reference to embodiments and its attached drawing further explains the present invention.
Embodiment 1
Chain block crane boom of the invention, including chain block, two brackets, Π shape cross bar.
It is the chain block crane boom structural schematic diagram of the embodiment of the present invention referring now to Fig. 1, Fig. 1.As shown, described
Chain block 6 is round chain block, and shell is superior alloy steel, firm wear-resisting.The chain block rated load weight is
5t。
Described two brackets are shape, identical a pair of of the steel pipe support of size, and steel pipe support includes the long portion 500mm Guan Yuchang
1200mm standpipe, lower tube and standpipe are interconnected and fixed in inverted T-shaped, and the top of standpipe is opening, are connected in lower tube and standpipe
The hound that place is equipped with left and right arrangement is connect, with enhancing structure intensity；The hound and the angle of lower tube are 60 °.
The Π shape cross bar is C32 reinforcing bar, the long 200mm of bending two ends bar of Π shape cross bar, the long 750mm in middle section.
Wherein：The lower tube of two brackets is spaced apart to be arranged in parallel, so that the bending two ends bar energy of Π shape cross bar
It is inserted into the top nozzle of two bracket standpipes, to connect two brackets, chain block is hooked on the middle part of Π shape cross bar；Two
It is horizontal between root riser upper to set up a cross bar, the long 1000mm of cross bar, and fastened respectively with two standpipes with cruciform fastening for falsework.Institute
Stating steel pipe is 48 × 3.5mm steel pipe.
Embodiment 2
Application of the chain block crane boom in the adjusting of beam steel protective layer thickness in embodiment 1.Chain block of the invention
Application method of the crane boom in the adjusting of beam steel protective layer thickness：
First chain block top is hung on C32 reinforcing bar Π shape cross bar 5, joist steel flaccidity of tendon and muscle muscle is caught in chain block lower part.In order to protect
The whole steady lifting of beam is demonstrate,proved, a hook can be increased in chain block lower part, make two to link up with two angle muscle for tangling beam respectively.
Manual-chain, the rotation of bangle wheel are dropped clockwise, beam muscle can be lifted on the whole, to carry out the adjustment of position.
The present invention is with substantive distinguishing features and significant technological progress, chain block crane boom of the invention and in beam steel
Application in protective layer thickness adjusting, chain block structure is simple, assembling（Disassembly）It is convenient, it is easy to carry, mobile.Bracket conduct
The supporting point of cucurbit, and bearing capacity is dispersed, template, the reinforcing bar of lower part is effectively protected, and since chain block is artificial behaviour
Make, work is not influenced by conditions such as electric power, can complete the guarantor of beam muscle side and bottom quickly by adjusting beam muscle position
The change of covering thickness.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (5)
1. a kind of chain block crane boom, including chain block, two brackets, Π shape cross bar, it is characterised in that：
The chain block is round chain block, and shell is superior alloy steel, firm wear-resisting；
Described two brackets are identical a pair of of the steel pipe supports of shape, size, steel pipe support by lower tube and standpipe, lower tube with
Standpipe is interconnected and fixed in inverted T-shaped, and the top of standpipe is opening, is equipped with the oblique of left and right arrangement in lower tube and standpipe junction
Strut, with enhancing structure intensity；
The Π shape cross bar is C32 reinforcing bar, the long 200mm of bending two ends bar of Π shape cross bar, the long 750mm in middle section；
Wherein：The lower tube of two brackets is spaced apart to be arranged in parallel, so that the bending two ends bar of Π shape cross bar can be inserted into
In the top nozzle of two bracket standpipes, to connect two brackets, chain block is hooked on the middle part of Π shape cross bar；It is vertical at two
It is horizontal between pipe top to set up a cross bar, the long 1000mm of cross bar, and fastened respectively with two standpipes with cruciform fastening for falsework.
2. chain block crane boom as described in claim 1, which is characterized in that the chain block rated load weight be >=
5t。
3. chain block crane boom as described in claim 1, which is characterized in that the steel pipe is 48 × 3.5mm steel pipe.
4. chain block crane boom as described in claim 1, which is characterized in that the hound and the angle of lower tube are
60°。
5. a kind of application of chain block crane boom in the adjusting of beam steel protective layer thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667515.5A CN108862081A (en) | 2018-06-26 | 2018-06-26 | A kind of chain block crane boom and the application in the adjusting of beam steel protective layer thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667515.5A CN108862081A (en) | 2018-06-26 | 2018-06-26 | A kind of chain block crane boom and the application in the adjusting of beam steel protective layer thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108862081A true CN108862081A (en) | 2018-11-23 |
Family
ID=64295614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810667515.5A Pending CN108862081A (en) | 2018-06-26 | 2018-06-26 | A kind of chain block crane boom and the application in the adjusting of beam steel protective layer thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108862081A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667427A (en) * | 2018-12-29 | 2019-04-23 | 宁波二十冶建设有限公司 | A kind of beam steel bar colligation constructing structure and construction method |
| CN109707169A (en) * | 2018-12-28 | 2019-05-03 | 中国二十冶集团有限公司 | The quickly method of adjustment beam bottom cover to reinforcement |
| CN110817726A (en) * | 2019-12-02 | 2020-02-21 | 山东丰汇设备技术有限公司 | Tower body tile holding mounting and dismounting device and mounting and dismounting method of tower crane |
| CN112320651A (en) * | 2020-09-08 | 2021-02-05 | 德清县金丝源纺织品有限公司 | Labor-saving lifting mechanism of cloth winding drum |
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| US6464208B1 (en) * | 2001-02-02 | 2002-10-15 | Donald E. Smith | I-beam walk assist device |
| CN201272667Y (en) * | 2008-09-11 | 2009-07-15 | 江苏省电力公司涟水县供电公司 | Hanging rack for assembling and disassembling combined concrete rod |
| CN201347338Y (en) * | 2009-01-20 | 2009-11-18 | 中国石化集团第四建设公司 | Electrical cabinet hoisting and convoying device |
| CN201901568U (en) * | 2010-12-27 | 2011-07-20 | 黄石供电公司变电检修中心 | Combined gourd hoist frame |
| CN202175529U (en) * | 2011-08-03 | 2012-03-28 | 重庆市綦江县供电有限责任公司 | Movable gantry crane |
| CN204417000U (en) * | 2014-12-17 | 2015-06-24 | 五冶集团上海有限公司 | A kind of movable stand for the dismounting of limitation Space Facilities |
-
2018
- 2018-06-26 CN CN201810667515.5A patent/CN108862081A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6464208B1 (en) * | 2001-02-02 | 2002-10-15 | Donald E. Smith | I-beam walk assist device |
| CN201272667Y (en) * | 2008-09-11 | 2009-07-15 | 江苏省电力公司涟水县供电公司 | Hanging rack for assembling and disassembling combined concrete rod |
| CN201347338Y (en) * | 2009-01-20 | 2009-11-18 | 中国石化集团第四建设公司 | Electrical cabinet hoisting and convoying device |
| CN201901568U (en) * | 2010-12-27 | 2011-07-20 | 黄石供电公司变电检修中心 | Combined gourd hoist frame |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707169A (en) * | 2018-12-28 | 2019-05-03 | 中国二十冶集团有限公司 | The quickly method of adjustment beam bottom cover to reinforcement |
| CN109667427A (en) * | 2018-12-29 | 2019-04-23 | 宁波二十冶建设有限公司 | A kind of beam steel bar colligation constructing structure and construction method |
| CN110817726A (en) * | 2019-12-02 | 2020-02-21 | 山东丰汇设备技术有限公司 | Tower body tile holding mounting and dismounting device and mounting and dismounting method of tower crane |
| CN110817726B (en) * | 2019-12-02 | 2023-10-24 | 山东丰汇设备技术有限公司 | Tower body enclasping tile mounting and dismounting device and mounting and dismounting method of tower crane |
| CN112320651A (en) * | 2020-09-08 | 2021-02-05 | 德清县金丝源纺织品有限公司 | Labor-saving lifting mechanism of cloth winding drum |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |
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| RJ01 | Rejection of invention patent application after publication |