CN101759125A - Self-locking extension working platform of lifting working ladder - Google Patents
Self-locking extension working platform of lifting working ladder Download PDFInfo
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- CN101759125A CN101759125A CN200810069058A CN200810069058A CN101759125A CN 101759125 A CN101759125 A CN 101759125A CN 200810069058 A CN200810069058 A CN 200810069058A CN 200810069058 A CN200810069058 A CN 200810069058A CN 101759125 A CN101759125 A CN 101759125A
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Abstract
The invention provides a self-locking extension working platform of a lifting working ladder, wherein the extension working platform has self-locking function. The self-locking extension working platform of the lifting working ladder consists of a fixed platform, an extension platform and a sprocket-wheel screw stem self-locking device; the extension platform is arranged in the fixed platform; the sprocket-wheel screw stem self-locking device is arranged on the fixed platform; a fixed protection fence is arranged on the fixed platform; and a mobile protection fence is arranged on the extension platform; in a high-altitude operation, in particular to the maintenance for facilities arranged at the positions difficult to approach, and the extension platform can be located at any position. The improvement of the self-locking extension working platform of the lifting working ladder is that the sprocket-wheel screw stem self-locking device is additionally arranged, therefore, the extension platform can be located at any position in moving and can fast, accurately and safely approach the positions difficult to approach to maintain the facilities.
Description
Technical field
The present invention relates to lifting working platform, relate in particular to a kind of self-locking extension workplatform of elevating ladder.
Background technology
Civilian and military aircraft, airport, harbour, factory building, warehouse etc. need in use its facility is safeguarded that for higher position, especially some inaccessible positions are difficult for satisfying maintenance requirement with common lifting working platform.Existing lifting working platform is made up of car, lifting mechanism, control system and extension working platform.Extension working platform is arranged on the lifting mechanism top, and the lifting mechanism setting onboard; Lifting mechanism can be fork elevating mechanism, cylinder type lifting mechanism or screw mandrel transmission formula lifting mechanism; Car can be the hand barrow of band draw bar, also can be storage battery car or other power car; Existing extension working platform comprises fixed platform and extends platform.By crawl electric up-down control knob, make workplatform rise to desired height, the rear that stands in fixed platform then forwards moves to the working position that needs maintenance with the pushing hands that hand push extension platform moves guard rail, and facility is safeguarded.
Through investigation, before the present invention occurs, China's patent (application publication number: " high-altitude operation platform of band extensible work platform " (open day: 2008.2.20) CN 101125633A), solved the fixedly articulation issues between the fence and movable fence, but extending the orientation problem of platform in moving process is not well solved, have only when the extension platform is all released with realizing extending the platform location in the insertion of the hook portion in the pushing hands knock hole, owing to be by the perforate location, extend platform and in moving process, also can only realize the location at position of opening, can not realize the location at an arbitrary position, and need could be with in the latch inserting hole with alignment of a hole, insert very inconvenient, promote to extend platform near inaccessible position with such mode of operation, because action of inertia, just might push away the position slightly because of carelessness and break facility, and can not guarantee in its position location when shifting onto, need repeatedly moving body and adjust to extend the flat-bed position and just can reach and not only shift position but also can be onto to the effect of its location, such mode of operation poor stability, the working costs effort.
In view of this, the invention provides a kind of self-locking extension workplatform of elevating ladder.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of extension working platform of improving elevating ladder, its extension working platform has auto-lock function, when aloft work, when especially the facility at some inaccessible positions being safeguarded, extending platform can locate at an arbitrary position, has not only guaranteed safety but also improved work efficiency.
For addressing the above problem, the present invention has adopted following technical scheme:
The self-locking extension workplatform of elevating ladder comprises fixed platform, extend platform and sprocket wheel screw rod self-locking device three parts, extending platform is arranged in the fixed platform, sprocket wheel screw rod self-locking device is arranged on the fixed platform, for guaranteeing the safety of aloft work, fixed platform is provided with the fixed protection hurdle, extend platform and be provided with mobile guard rail, the improvements of the self-locking extension workplatform of its described elevating ladder are to have increased sprocket wheel screw rod self-locking device in extension working platform, the extension platform can be located in moving at an arbitrary position voluntarily, fast, accurately, near inaccessible position, facility is safeguarded safely.
The sprocket wheel screw rod self-locking device of the self-locking extension workplatform of elevating ladder of the present invention comprises hinge wheel, minor sprocket, chain, screw rod, swivel nut, connecting rod, bearing seat, handle, turning cylinder, flat key, chain wheel support and protective case, so that realize the function that the self-locking extension platform can be located at an arbitrary position voluntarily in moving.If in the time of need safeguarding the facility at inaccessible position, the clockwise direction turning handle, hinge wheel drives minor sprocket by chain gear and rotates, and screw rod rotates with minor sprocket, drives swivel nut moving linearly forward, driving the extension platform by connecting rod extends out forward, progressively near inaccessible position, the anti-collision rubber disc on extending platform is during near facility, and handle stops operating, extend platform and locate voluntarily, facility is safeguarded.Work finishes, and the anticlockwise direction turning handle extends platform and withdraws backward.
As preferably, fixed platform is provided with fixed guide, extends platform and is provided with moving guide rail, for guaranteeing to extend the platform smooth running, is provided with mobile upper roller, mobile bottom roller, mobile side wheel on moving guide rail, with fixed guide inwall rolling touch; On fixed guide, be provided with fixation side roller, fixing bottom roller, with moving guide rail outer wall rolling touch.When the extension platform all extended out, mobile side wheel contacted with the fixation side roller, and this moment, the fixation side roller played safe position-limiting action.In addition, in roller, be provided with antifriction-bearing box and cooperate, with the power of reducing friction with axle.
As preferably, a side of fixed guide has slotted hole, so that connecting rod can drive moving guide rail and extend the platform operation.
As preferably, mobile guard rail is arranged on and extends on the platform, extend the flat-bed front end and be provided with the anti-collision rubber disc, the fixed protection hurdle is arranged on the fixed platform, mobile guard rail inserts with being connected to of fixed protection hurdle and is connected, certain clearance is arranged, can smooth running and installation security to guarantee extending platform.
The technique scheme that the present invention adopts by the latching characteristics of screw drive pair, has solved the location of extending platform optional position in moving; And hinge wheel, minor sprocket, chain gear can make the operator face inaccessible position, see clearly and extend the distance of platform, when extending platform, stop the rotation of handle at any time, extend the platform self-locking near the facility that needs to safeguard from facility, thereby, improved safety and work efficiency widely.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the self-locking extension workplatform block diagram of elevating ladder of the present invention.
Fig. 2 is a front view.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the B-B cutaway view of Fig. 2.
Among the figure: the 1st, fixed platform; the 2nd, sprocket wheel screw rod self-locking device; the 3rd, extend platform, the 4th, fixed protection hurdle, the 5th, mobile upper roller; the 6th, mobile bottom roller, the 7th, handle, the 8th, turning cylinder; the 9th, protective case, the 10th, mobile guard rail, the 11st, hinge wheel; the 12nd, chain wheel support, the 13rd, screw, the 14th, chain; the 15th, fixed guide, the 16th, moving guide rail, the 17th, fixation side roller; the 18th, fixing bottom roller, the 19th, screw, the 20th, anti-collision rubber disc; the 21st, minor sprocket, the 22nd, straight pin, the 23rd, connecting rod; the 24th, swivel nut, the 25th, mobile side wheel, the 26th, screw rod; the 27th, bearing seat; the 28th, antifriction-bearing box, the 29th, axle, the 30th, flat key.
The specific embodiment:
Implement the self-locking extension workplatform of elevating ladder of the present invention; as Fig. 2, Fig. 3, shown in Figure 4, the sprocket wheel screw rod self-locking device of the self-locking extension workplatform of described elevating ladder is made up of handle 7, turning cylinder 8, protective case 9, hinge wheel 11, chain wheel support 12, chain 14, minor sprocket 21, connecting rod 23, swivel nut 24, screw rod 26 and bearing seat 27.Bearing seat 27 usefulness screws 13 are fixed to the side of fixed guide 15; one end of screw rod 26 inserts in the hole of bearing seat 27; the other end and minor sprocket 21 are fitted together with straight pin 22 fixing; swivel nut 24 is screwed on the screw rod 26; in the hole on the one end insertion swivel nut 24 of connecting rod 23; the other end is fixed on the moving guide rail 16 with screw 19; shown in Fig. 2 below dotted portion and Fig. 4 below partial cutaway part; one side of fixed guide 15 has slotted hole; so that connecting rod 23 drives moving guide rail 16 and extends platform 3 operations; hinge wheel 11 usefulness chains 14 are connected with minor sprocket 21; handle 7 inserts with being connected to of transmission shaft 8 and is connected; stud with flat key 30 on the transmission shaft 8, protective case 9; chain wheel support 12 is arranged on the fixed platform 1.
Fixed platform 1 is provided with fixed guide 15, extends platform 3 and is provided with moving guide rail 16, for guaranteeing to extend platform 3 smooth runnings, mobile upper roller 5, mobile bottom roller 6, mobile side wheel 25 is installed, with fixed guide 15 inwall rolling touch on moving guide rail 16; Fixation side roller 17, fixing bottom roller 18 are installed, with moving guide rail 16 outer wall rolling touch on fixed guide 15.When extension platform 3 all extended out, mobile side wheel 25 contacted with fixation side roller 17, and fixation side roller 17 plays safe position-limiting action at this moment.Be the power of reducing friction, antifriction-bearing box 28 is housed in roller, axle 29 cooperates with it.
During clockwise direction turning handle 7, hinge wheel 11 drives minor sprocket 21 by chain 14 transmissions and rotates, screw rod 26 drives swivel nut 24 moving linearly forward with minor sprocket 21 rotations, drives extension platform 3 by connecting rod 23 and extends out forward, progressively near inaccessible position, anti-collision rubber disc 20 on extending platform 3 is during near facility, and the handle 7 that stops operating extends platform 3 and locatees voluntarily, during anticlockwise direction turning handle 7, extend platform 3 and withdraw backward.
Claims (4)
1. the self-locking extension workplatform of elevating ladder is made up of fixed platform (1), extension platform (3) and sprocket wheel screw rod self-locking device (2) three parts, extending platform (3) is arranged in the fixed platform (1), sprocket wheel screw rod self-locking device (2) is arranged on the fixed platform (1), fixed platform (1) is provided with fixed protection hurdle (4), extend platform (3) and be provided with mobile guard rail (10), it is characterized in that: increased sprocket wheel screw rod self-locking device (2) in the extension working platform (3).
2. the self-locking extension workplatform of elevating ladder according to claim 1; its sprocket wheel screw rod self-locking device is by hinge wheel (11); minor sprocket (21); chain (14); screw rod (26); swivel nut (24); connecting rod (23); bearing seat (27); handle (7); turning cylinder (8); chain wheel support (12) and protective case compositions such as (9); it is characterized in that: bearing seat (27) is fixed to the side of fixed guide (15) with screw (13); one end of screw rod (26) inserts in the hole of bearing seat (27); the other end and minor sprocket (21) are fitted together with straight pin (22) fixing; swivel nut (24) is screwed on the screw rod (26); in the hole on the one end insertion swivel nut (27) of connecting rod (23); the other end is fixed on the moving guide rail (16) with screw (19); hinge wheel (11) is connected with minor sprocket (21) with chain (14); handle (7) inserts with being connected to of transmission shaft (8) and is connected; stud with flat key (30) on the transmission shaft (8), protective case (9); chain wheel support (12) is fixed on the fixed platform (1).
3. the self-locking extension workplatform of elevating ladder according to claim 1 and 2, it is characterized in that: the driving surface that extends platform (3) is arranged on the below of the driving surface of fixed platform (1), mobile upper roller (5), mobile bottom roller (6), mobile side wheel (25) are installed on the moving guide rail (16), with fixed guide (15) inwall rolling touch, fixation side roller (17), fixedly bottom roller (18) is installed on the fixed guide (15), with moving guide rail (16) outer wall rolling touch, be provided with antifriction-bearing box (28) in roller, axle (29) cooperates with it.
4. the self-locking extension workplatform of elevating ladder according to claim 1 is characterized in that: anti-collision rubber disc (20) is fixed on the front end that extends platform (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810069058 CN101759125B (en) | 2008-12-24 | 2008-12-24 | Self-locking extension working platform of lifting working ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810069058 CN101759125B (en) | 2008-12-24 | 2008-12-24 | Self-locking extension working platform of lifting working ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101759125A true CN101759125A (en) | 2010-06-30 |
| CN101759125B CN101759125B (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810069058 Expired - Fee Related CN101759125B (en) | 2008-12-24 | 2008-12-24 | Self-locking extension working platform of lifting working ladder |
Country Status (1)
| Country | Link |
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| CN (1) | CN101759125B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344054A (en) * | 2011-10-10 | 2012-02-08 | 浙江海森纺机科技有限公司 | Yarn delivery tube 14-teeth sprocket seat on rope woven knotless net winding machine |
| CN102398873A (en) * | 2011-10-26 | 2012-04-04 | 沈阳建筑大学 | Climbing extensible platform for maintenance of fan |
| CN102583198A (en) * | 2012-01-17 | 2012-07-18 | 上海东锐风电技术有限公司 | Overhauling platform for wind turbine blade |
| CN104140063A (en) * | 2014-07-16 | 2014-11-12 | 云南三星机械设备制造股份有限公司 | Telescopic operation platform |
| CN104150391A (en) * | 2014-08-28 | 2014-11-19 | 苏州美罗升降机械有限公司 | Lifting work integrated elevator |
| CN104512843A (en) * | 2014-12-28 | 2015-04-15 | 浙江鼎力机械股份有限公司 | Working platform of bridge type working platform |
| CN105347244A (en) * | 2015-11-30 | 2016-02-24 | 苏州市康鼎升降机械有限公司 | Elevator with extending table board |
| CN106379851A (en) * | 2016-09-28 | 2017-02-08 | 成都凯天电子股份有限公司 | Aircraft maintenance working platform |
| CN107152381A (en) * | 2017-06-12 | 2017-09-12 | 沈阳吉地安风电科技有限公司 | A kind of fan blade repairing platform device |
| CN109279549A (en) * | 2017-07-20 | 2019-01-29 | 成都凯天电子股份有限公司 | Aerial work platform collapsed transportable indexing bindiny mechanism |
| CN109850825A (en) * | 2019-01-25 | 2019-06-07 | 许昌远方工贸有限公司 | A kind of packaged type material handling lifting device |
| CN111332995A (en) * | 2018-12-18 | 2020-06-26 | 北京三兴汽车有限公司 | Self-locking mechanism of sliding platform |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064358U (en) * | 1989-12-21 | 1990-10-24 | 中国人民解放军吉林省军区后勤部修配厂 | Small-size multi-function hydraulic electric engineering car |
| JP2001302190A (en) * | 2000-04-21 | 2001-10-31 | Japan Railway Construction Public Corp | Working stand unit for vehicle for high lift work |
| JP2004051335A (en) * | 2002-07-23 | 2004-02-19 | Tokyo Kiyuukou Dentetsu Kk | Vehicle for high lift work |
-
2008
- 2008-12-24 CN CN 200810069058 patent/CN101759125B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344054A (en) * | 2011-10-10 | 2012-02-08 | 浙江海森纺机科技有限公司 | Yarn delivery tube 14-teeth sprocket seat on rope woven knotless net winding machine |
| CN102398873A (en) * | 2011-10-26 | 2012-04-04 | 沈阳建筑大学 | Climbing extensible platform for maintenance of fan |
| CN102398873B (en) * | 2011-10-26 | 2014-07-02 | 沈阳建筑大学 | Climbing extensible platform for maintenance of fan |
| CN102583198A (en) * | 2012-01-17 | 2012-07-18 | 上海东锐风电技术有限公司 | Overhauling platform for wind turbine blade |
| CN104140063A (en) * | 2014-07-16 | 2014-11-12 | 云南三星机械设备制造股份有限公司 | Telescopic operation platform |
| CN104150391B (en) * | 2014-08-28 | 2016-11-23 | 苏州美罗升降机械有限公司 | A kind of lifting operation integral type elevator |
| CN104150391A (en) * | 2014-08-28 | 2014-11-19 | 苏州美罗升降机械有限公司 | Lifting work integrated elevator |
| CN104512843A (en) * | 2014-12-28 | 2015-04-15 | 浙江鼎力机械股份有限公司 | Working platform of bridge type working platform |
| CN105347244A (en) * | 2015-11-30 | 2016-02-24 | 苏州市康鼎升降机械有限公司 | Elevator with extending table board |
| CN106379851A (en) * | 2016-09-28 | 2017-02-08 | 成都凯天电子股份有限公司 | Aircraft maintenance working platform |
| CN107152381A (en) * | 2017-06-12 | 2017-09-12 | 沈阳吉地安风电科技有限公司 | A kind of fan blade repairing platform device |
| CN109279549A (en) * | 2017-07-20 | 2019-01-29 | 成都凯天电子股份有限公司 | Aerial work platform collapsed transportable indexing bindiny mechanism |
| CN109279549B (en) * | 2017-07-20 | 2023-10-24 | 成都凯天电子股份有限公司 | Folding, transporting and indexing connecting mechanism for aerial working platform |
| CN111332995A (en) * | 2018-12-18 | 2020-06-26 | 北京三兴汽车有限公司 | Self-locking mechanism of sliding platform |
| CN111332995B (en) * | 2018-12-18 | 2024-04-02 | 北京三兴汽车有限公司 | Sliding platform self-locking mechanism |
| CN109850825A (en) * | 2019-01-25 | 2019-06-07 | 许昌远方工贸有限公司 | A kind of packaged type material handling lifting device |
| CN109850825B (en) * | 2019-01-25 | 2024-01-26 | 许昌远方工贸有限公司 | Movable material loading and unloading elevating gear |
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| CN101759125B (en) | 2013-01-30 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20130130 Termination date: 20161224 |