CN2707727Y - Tower type crane boom - Google Patents
Tower type crane boom Download PDFInfo
- Publication number
- CN2707727Y CN2707727Y CN 200420040311 CN200420040311U CN2707727Y CN 2707727 Y CN2707727 Y CN 2707727Y CN 200420040311 CN200420040311 CN 200420040311 CN 200420040311 U CN200420040311 U CN 200420040311U CN 2707727 Y CN2707727 Y CN 2707727Y
- Authority
- CN
- China
- Prior art keywords
- arm body
- fastener
- arm
- tower crane
- personnel
- 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.)
- Expired - Fee Related
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- Jib Cranes (AREA)
Abstract
The utility model discloses a tower type crane boom with safety device which is provided with an arm body. The left and right ends of the arm body are respectively provided with fasteners and cables are arranged between the fasteners on the left and right ends. The cables are two steel strands which are mutually parallel and the fastener on one end is provided with a tension regulating spring of the steel strands. After high-lift operation personnel hasps the safety belt on the cable, the personnel can ambulate along any side of the arm safely, and thus the personnel can accomplish the work of maintaining the arm body and changing the steel cable to hugely reduce the possibility of human casualty accidents during high-lift operation.
Description
Technical field the utility model relates to the tower crane arm, particularly relates to the tower crane arm of being with safety device.
The present construction trade of background technology generally adopts tower crane, the general above model of 800KNM, in jib inside the safety precaution manway is set all along the length of boom direction, and for being lower than 800KNM following model, because arm jib structure inner body height is generally below 1.5 meters, thereby the safety precaution manway can't be set in jib inside, and make troubles for maintenance, the nursing of arm, the replacing of steel rope, aloft work personnel's personal safety has been constituted threat.Particularly the aloft work personnel are when arm body one skidding is walked, and can't protect oneself by measure such as fasten the safety belt because of the jib structure restriction, often cause the generation of personal falling accident.
The summary of the invention the purpose of this utility model will provide a kind of improved tower crane arm exactly, and it can overcome existing tower crane arm effectively because of there not being the drawback that suitable protection causes potential safety hazard.
The purpose of this utility model is achieved in that the tower crane arm has the arm body, above the left and right two ends of arm body fastener is installed respectively, between the fastener at left and right two ends cable is installed.
As a kind of improvement project of the present utility model, be that described cable is two steel strand that are parallel to each other.
As the further improvement of the utility model scheme, be that steel strand tension adjustment spring is housed on the fastener at one end.
As further improvement project of the present utility model, be that described steel strand tension adjustment spring is a compression spring.
The utility model is owing to adopted the strand structure of band regulating spring, thereby the aloft work personnel can fasten one's safety belt easily, walk on jib along steel strand, greatly reduced the danger of aloft work personnel when the jib operation of arm upper edge, this structure increases cost seldom simultaneously, and installs easily.
Description of drawings is described in further detail the utility model below in conjunction with accompanying drawing.
Accompanying drawing is the three-dimensional structure diagram of tower crane arm described in the utility model.
Specific embodiment accompanying drawing shows spatial structure of the present utility model, above the left and right two ends of its arm body 1 fastener 2 is installed respectively, and cable 3 is installed between the fastener 2 at left and right two ends; Cable 3 is selected the galvanized strand wires that meets the YB/T5004-93 standard for use, for preventing and tower machine drag-line is interfered, in the both sides that on the jib length direction two steel strand are arranged in parallel to each other above the jib; Steel strand tension adjustment spring 4 is installed on left end fastener 2 again; Steel strand tension adjustment spring 4 is selected compression spring for use, and fastener 2 adopts bolt clip to fasten for being fixed in the metal plate structure on the arm body 1 with arm body 1, when metal plate structure is steel structure, can adopt welding fixing.
After the aloft work personnel snap over safety belt on the cable 3, can be safely along the walking of jib either side, thereby finish to the maintenance of arm body 1 and to the work such as replacing of steel rope.
Claims (4)
1, a kind of tower crane arm possesses arm body (1), it is characterized in that: the top, left and right two ends at arm body (1) is installed fastener (2) respectively, between the fastener (2) at two ends, the left and right sides cable (3) is installed.
2, tower crane arm according to claim 1 is characterized in that: the two piece steel strand of described cable (3) for being parallel to each other.
3, tower crane arm according to claim 2 is characterized in that: steel strand tension adjustment spring (4) is housed on the fastener at one end (2).
4, tower crane arm according to claim 3 is characterized in that: steel strand tension adjustment spring (4) is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040311 CN2707727Y (en) | 2004-04-29 | 2004-04-29 | Tower type crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040311 CN2707727Y (en) | 2004-04-29 | 2004-04-29 | Tower type crane boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2707727Y true CN2707727Y (en) | 2005-07-06 |
Family
ID=34850590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040311 Expired - Fee Related CN2707727Y (en) | 2004-04-29 | 2004-04-29 | Tower type crane boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2707727Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993010A (en) * | 2010-11-17 | 2011-03-30 | 上海三一科技有限公司 | Fall arrest safety rope for arm support |
| CN108383013A (en) * | 2018-02-14 | 2018-08-10 | 大连益利亚工程机械有限公司 | A kind of special equipment constructed for cylinder and dome inner space |
-
2004
- 2004-04-29 CN CN 200420040311 patent/CN2707727Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993010A (en) * | 2010-11-17 | 2011-03-30 | 上海三一科技有限公司 | Fall arrest safety rope for arm support |
| CN108383013A (en) * | 2018-02-14 | 2018-08-10 | 大连益利亚工程机械有限公司 | A kind of special equipment constructed for cylinder and dome inner space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050706 Termination date: 20100429 |