CN2467779Y - Safety lifting and lowering tower ladder - Google Patents
Safety lifting and lowering tower ladder Download PDFInfo
- Publication number
- CN2467779Y CN2467779Y CN 01209968 CN01209968U CN2467779Y CN 2467779 Y CN2467779 Y CN 2467779Y CN 01209968 CN01209968 CN 01209968 CN 01209968 U CN01209968 U CN 01209968U CN 2467779 Y CN2467779 Y CN 2467779Y
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- CN
- China
- Prior art keywords
- tower
- joint
- drive unit
- rope chain
- ladder
- 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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Abstract
The utility model discloses a safety telescopic tower ladder which is composed of tower sections having more than two stages, a pulley wheel, a rope chain, a driving device and locating pieces, wherein each stage of the tower section can accommodate each other in sequence; each stage of the tower section is provided with the mechanical locating pieces, and the upper end of the tower section is provided with the pulley wheel; the first stage of the tower section is fixed, and other stages can be respectively driven by the single driving device to lift according to needs; moreover, the safety hazards of the rope chain bearing, the climbing operation of operating staffs, etc. are eliminated. Therefore, the utility model has the advantages of simple structure, low cost, safety and reliability.
Description
The utility model relates to a kind of tower ladder that can lifting.
Tower ladder that can lifting in operation process has adjustable height, be convenient to remarkable advantages such as transportation, the patent No. is that the flexible tower ladder of 982275099 multistage linkings is very popular especially with its single drive unit, but the flexible tower ladder of this type of interlock in use exists the adjacent towers internode to be difficult to relative fixed, operating personnel's operation of must ascending a height, potential safety hazards such as rope chain bearing load.
The purpose of this utility model is: at the deficiency of the flexible tower ladder of above-mentioned multistage linking existence, propose a kind of only with the safe lifting tower ladders of distinguishing free lifting at different levels of single drive unit, and Ke Yi Shi Nei Tajie rises or the back descends, and eliminates the ascend a height obstacle of locking or release of operating personnel.
In order to achieve the above object, safe lifting tower ladder of the present utility model comprises the above tower joint of secondary, pulley, rope chain, drive unit, mechanical positioning part, tower joints at different levels can contain according to the order of sequence mutually, except that afterbody, other intrinsic pulley in upper ends at different levels, rope chain one end of walking around pulley connects adjacent towers joint in it, the other end connects drive unit on demand, first order tower joint is fixing, other tower joints at different levels directly drive lifting by drive unit by transmission mechanism respectively, and each grade tower joint all is equipped with the mechanical positioning part.
When safe lifting tower ladder work of the present utility model does, first order tower joint is fixing, arbitrary level in other scalable tower joints at different levels rises under the drive unit effect, as when interior one-level tower joint is raised up to specified altitude assignment, locked the mechanical positioning part, the rope chain that unclamps this one-level tower joint of traction makes it be in free state, the chain bearing load of restricting this moment will transfer mechanical positioning part bearing load to, to from the inside to the outside more on demand, the pull rope chain of tower joint is connected with drive unit, just can rise this one-level tower saves to specified altitude assignment, fix the mechanical positioning part and unclamp its pull rope chain, make it be in free state, until the lifting tower ladder reach require height and all fix the mechanical positioning part.Otherwise, when descending, need only elder generation and connect the pull rope chain of the outermost one-level tower joint that removes the first order to drive unit, the mechanical positioning part of removing this one-level tower joint then can make it descend under the drive unit effect, operates from outside to inside until tower joints at different levels all to descend again.Like this, both realized the scalable tower joint of single drive unit lifting, locking mechanical positioning part is fixed the relative position of adjacent towers internode during postscript, exempts the load-bearing of rope chain, and operating personnel just can finish the locking and the releasing work of keeper at lower height, therefore simple in structure, cost economy, safe and reliable, be highly suitable for China's lifting, apply in fields such as electric power, post and telecommunications, fire-fighting.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the structural representation of another embodiment of the utility model.
Among the figure: 1, tower joint; 2, the junction plate of band lock hole; 3, alignment pin; 4, tower joint; 5, the junction plate of band lock hole; 6, alignment pin; 7, tower joint; 8, pulley; 9, rope chain; 10, pulley; 11, rope chain; 12, drive unit; 13, connector; 14, backstay; 15, connector; 16, backstay.
The flexible tower ladder of safety among Fig. 1 comprises three grades of tower joints 1,4,7, pulley 8,10, rope chain 9,11, drive unit 12, the junction plate 2,5 and the alignment pin 3,6 of band lock hole, the mechanical positioning part is made up of the junction plate and the alignment pin of band lock hole, and tower joints at different levels can contain nested according to the order of sequence mutually, first order tower joint 1 is fixing, and other tower joint 4,7 can the rope chain 9,11 on the head sheave 8,10 drives lifting on the outer adjacent towers joint 1,4 by walking around by drive unit 12 respectively on demand.
When the flexible tower ladder work of the safety of present embodiment does, connection cord chain 9 is to drive unit 12, when flexible tower saves 7 under drive unit 12 effects, when being raised up to specified altitude assignment, alignment pin 6 is inserted in the lock hole of junction plate 5, locking tower joint 4 and 7 relative positions of tower joint, the tie point that unclamps drive unit 12 and rope chain 9 then makes rope chain 9 be in free state, connection cord chain 11 and drive unit 12, when tower joint 4 is raised up to specified altitude assignment under the drive unit effect, alignment pin 3 is inserted in the lock hole of junction plate 2, locking tower joint 1 and 4 relative positions of tower joint, the tie point that unclamps drive unit and rope chain 11 then makes it be in free state.Otherwise the chain 9 or 11 of will restricting earlier is connected to drive unit 12, removes alignment pin 6 or 3 again, and tower joint 7 or 4 is descended under the drive unit effect.Like this, only just can drive tower joint at different levels lifting respectively with single drive unit, and locking in time or releasing mechanical positioning part, make tower internode position relative fixed, eliminate safe hidden trouble.
The direct insertion locate mode of mechanical positioning part in the foregoing description in the flexible tower ladder of the utility model safety, also has other locate mode (see figure 2), backstay 14,16 is hinged on connector 13,15, and can 180 ° of rotations, when the long limit of backstay is parallel with connector, being disarm state, is lock-out state when the long limit of keeper is vertical with connecting rod.
Tower joint in the flexible tower ladder of safety of the present utility model can adopt embodiments such as truss structure, case structure, sleeve type structure.
Claims (5)
1, a kind of safe lifting tower ladder, comprise the above tower joint of secondary, pulley, rope chain, drive unit, tower joints at different levels can contain according to the order of sequence mutually, other intrinsic pulley in tower joint upper ends at different levels except that afterbody, it is characterized in that: the adjacent towers joint was gone up the other end and is connected drive unit on demand respectively in rope chain one end of walking around pulley was connected, and first order tower joint is fixed other towers joints at different levels and directly driven lifting by drive unit by transmission mechanism, and each grade tower joint all is equipped with the mechanical positioning part.
2, safe lifting tower ladder according to claim 1 is characterized in that: described tower joint is trussed construction.
3, safe lifting tower ladder according to claim 1 is characterized in that: described tower joint is the tower pipe.
4, safe lifting tower ladder according to claim 1, it is characterized in that: described drive unit is a hoist engine.
5, safe lifting tower ladder according to claim 1, it is characterized in that: described mechanical positioning part is the plug-in type keeper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01209968 CN2467779Y (en) | 2001-03-05 | 2001-03-05 | Safety lifting and lowering tower ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01209968 CN2467779Y (en) | 2001-03-05 | 2001-03-05 | Safety lifting and lowering tower ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2467779Y true CN2467779Y (en) | 2001-12-26 |
Family
ID=33629612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01209968 Expired - Fee Related CN2467779Y (en) | 2001-03-05 | 2001-03-05 | Safety lifting and lowering tower ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2467779Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886486A (en) * | 2010-08-05 | 2010-11-17 | 浙江瑞能通信科技有限公司 | Communication base station with lifting function |
| CN102022018B (en) * | 2009-09-11 | 2012-06-27 | 深圳市海生机房技术有限公司 | Lifting tower and mobile base station |
| CN104733858A (en) * | 2015-03-23 | 2015-06-24 | 湖南航天环宇通信科技有限责任公司 | Automatic antenna support |
| CN108729840A (en) * | 2018-04-04 | 2018-11-02 | 国网河北省电力有限公司无极县供电分公司 | A kind of telescopic fish-bone ladder of electric power overhaul |
-
2001
- 2001-03-05 CN CN 01209968 patent/CN2467779Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022018B (en) * | 2009-09-11 | 2012-06-27 | 深圳市海生机房技术有限公司 | Lifting tower and mobile base station |
| CN101886486A (en) * | 2010-08-05 | 2010-11-17 | 浙江瑞能通信科技有限公司 | Communication base station with lifting function |
| CN101886486B (en) * | 2010-08-05 | 2012-02-29 | 浙江瑞能通信科技有限公司 | Communication base station with lifting function |
| CN104733858A (en) * | 2015-03-23 | 2015-06-24 | 湖南航天环宇通信科技有限责任公司 | Automatic antenna support |
| CN104733858B (en) * | 2015-03-23 | 2018-05-18 | 湖南航天环宇通信科技股份有限公司 | Automatic type antenna holder |
| CN108729840A (en) * | 2018-04-04 | 2018-11-02 | 国网河北省电力有限公司无极县供电分公司 | A kind of telescopic fish-bone ladder of electric power overhaul |
| CN108729840B (en) * | 2018-04-04 | 2019-08-13 | 国网河北省电力有限公司无极县供电分公司 | A kind of telescopic fish-bone ladder of electric power overhaul |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |