CN203065116U - Overhead working truck - Google Patents

Overhead working truck Download PDF

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Publication number
CN203065116U
CN203065116U CN 201220713933 CN201220713933U CN203065116U CN 203065116 U CN203065116 U CN 203065116U CN 201220713933 CN201220713933 CN 201220713933 CN 201220713933 U CN201220713933 U CN 201220713933U CN 203065116 U CN203065116 U CN 203065116U
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CN
China
Prior art keywords
mast
coaming plate
sprocket wheel
workplatform
fixed
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Application number
CN 201220713933
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Chinese (zh)
Inventor
张仁民
郑凤鸣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU AIZHI VEHICLES ENGINEERING Co Ltd
Hangzhou Aichi Engineering Vehicles Co Ltd
Original Assignee
HANGZHOU AIZHI VEHICLES ENGINEERING Co Ltd
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Priority to CN 201220713933 priority Critical patent/CN203065116U/en
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Publication of CN203065116U publication Critical patent/CN203065116U/en
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Abstract

The utility model discloses an overhead working truck which is characterized by comprising a movable vehicle body, a mast lifting mechanism, a folding type work platform and telescopic supporting legs, wherein the mast lifting mechanism is arranged on a truck box of the movable vehicle body. The folding type work platform is horizontally arranged on the mast lifting mechanism in a sliding mode through a work platform moving mechanism, and the telescopic supporting legs are arranged at the bottom of the truck box of the movable vehicle body. The overhead working truck is compact in whole structure, low in manufacturing cost, practical, durable, and convenient to operate, brings convenience to workers, and saves time and labor.

Description

A kind of aerial platform
Technical field
The utility model relates to a kind of aerial platform.
Background technology
The aerial platform of present vertical lift workplatform, mainly be divided into scissor-type lifting, double-cylinder type lifting and masts type lifting etc., the work bucket of scissor-type can't fold can not be whole mobile, cutting fork device controls simultaneously by a plurality of oil cylinders mostly, oil pipe intersects winding easily, cause to use and keep in repair inconvenience and repair rate is higher, and cut take up room when fork device is regained big, it is very big not have the space of interfering around requiring during expansion, and the space of leaving the vehicular transport goods for is very limited.The telescopic oil cylinder manufacturing technology of double-cylinder type lifting requires very high, and needs an independent Hydraulic Station to drive the oil cylinder lifting, so this lifting table cost of manufacture is very high.
The utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and a kind of reasonable in design is provided, and good reliability, the aerial platform little, that scope of work is big takes up room.
The technical scheme in the invention for solving the above technical problem is: this aerial platform, it is characterized in that: comprise moving body, mast lift structure, collapsible workplatform, retractable supports leg, described mast lift structure is installed on the lorry casing of moving body, described collapsible workplatform is installed on the mast lift by the horizontal slip of workplatform travel mechanism, and described retractable supports leg is installed in the lorry bottom half of moving body.Adopt said structure, aerial platform compact overall structure, wagon box physical efficiency provide a large amount of residue usage spaces, can transport a large amount of work materials, equipment and instrument on the loading space; The cost of manufacture of aerial platform is lower and practical durable at truck installation mast lift structure, workplatform not only can fold by fore-and-aft direction, and can whole move up at right and left, belonging to not only can aloft work but also can transport the multi-functional special operation car of goods.
Retractable supports leg described in the utility model comprises the supporting leg fixed frame, movable supporting legs and leg link mechanism, the supporting leg fixed frame is fixed on the bottom of lorry casing, described leg link mechanism comprises first connecting rod, second connecting rod and adapter sleeve, described movable supporting legs inserts supporting leg fixed frame and adapter sleeve, one end and the supporting leg fixed frame of first connecting rod are hinged, one end of the other end of first connecting rod and second connecting rod is hinged, middle part and the adapter sleeve of second connecting rod are hinged, have pin hole on the movable supporting legs, offer the pin hole mating holes that pin hole matches on supporting leg fixed frame and the adapter sleeve respectively, pin hole and pin hole mating holes cooperate by the locking latch.Adopt said structure, telescopic support legs is simple in structure, cost of manufacture is cheap, supporting leg stretches simple operation, leg link mechanism is durable in use; Leg link mechanism can the restraint supporting leg be influenced by horizontal applied force and produces skew, can also carry the application force that movable supporting legs produces in the vertical direction.
Mast lift structure described in the utility model, comprise the mast fixed mechanism, first mast, second mast, the 3rd mast, the fourth mast bar, engine installation, chain gearing and antiseize device, collapsible workplatform is installed on the fourth mast bar, described first mast, second mast, the 3rd mast, the socket of sliding successively of fourth mast bar, the mast fixed mechanism is fixed on the lorry casing of moving body, first mast is fixed on the mast fixed mechanism, engine installation comprises elevating ram and hydraulic power unit, first mast fixedly has elevating ram, the piston head of elevating ram connects second mast, chain gearing comprises first chain, second chain, antiseize device comprises first steel rope, second steel rope, one end of first chain is fixed on first mast, the top of second mast is rotatablely equipped with first sprocket wheel, first chain its other end of back on first sprocket wheel is fixed on the bottom of the 3rd mast, one end of second chain is fixed on second mast, the top of the 3rd mast is rotatablely equipped with second sprocket wheel, second chain its other end of back on second sprocket wheel is fixed on the bottom of fourth mast bar, one end of first steel rope is fixed on the top of first mast, the bottom of second mast is equipped with first pulley, first steel rope its other end of back on first pulley is fixed on the 3rd mast, one end of second steel rope is fixed on the top of second mast, the bottom of the 3rd mast is equipped with second pulley, second steel rope its other end of back on second pulley is fixed on the fourth mast bar, hydraulic power unit is installed in first mast foot, and is connected elevating ram by hydraulic circuit with electromagnetic valve.Adopt said structure, it is little to take up room after the mast lifting is regained, and the collapsible workplatform that is installed on the mast is very low apart from ground, and use is convenient and swift, and whole mechanism is durable in use.
Collapsible workplatform described in the utility model, comprise preceding coaming plate, rear end panel, left side coaming plate, right coaming plate, platform floor, described left coaming plate comprises the first left coaming plate, the second left coaming plate, described right coaming plate comprises the first right coaming plate, the second right coaming plate, a side of the dual-side of the coaming plate difference hinged first left coaming plate and the first right coaming plate before described, another side difference hinged second left coaming plate of the first left coaming plate and the first right coaming plate and a side of the second right coaming plate, the dual-side difference hinged second left coaming plate of described rear end panel and another side of the second right coaming plate, a side of the base articulated platform base plate of coaming plate before described, the first left coaming plate, the bracing frame that base on the first right coaming plate fixedly has the support platform base plate to use.Adopt said structure, take up room after workplatform is folding little, folding process is easy to operate, durable in use
Workplatform described in the utility model travel mechanism, comprise chain, sprocket wheel and turning handle, described sprocket wheel comprises first sprocket wheel, second sprocket wheel and the 3rd sprocket wheel, first sprocket wheel, second sprocket wheel and the 3rd sprocket wheel are rotatably installed on the collapsible workplatform successively and all mesh with chain, the two ends of described chain are fixed on the mast lift structure, first sprocket wheel, second sprocket wheel are positioned at the homonymy of chain, first sprocket wheel and the 3rd sprocket wheel lay respectively at the both sides of chain, and turning handle is fixed on the 3rd sprocket wheel.Adopt said structure, collapsible workplatform can realize that it moves in the left and right directions integral level, is realized and can freely be adjusted moving velocity that moving process is easy to operate by manual mode.
Collapsible workplatform described in the utility model is provided with the lower platform step, the front of described collapsible workplatform offers the gangway of coming in and going out for personnel, last lower platform step is rotatably installed in by the step trip shaft on the base in front of collapsible workplatform, first under-chassis that supports usefulness when keeping supplying the lower platform step and packing up is fixedly arranged at the top of gangway, fixedly have below the collapsible workplatform and keep supplying second under-chassis that supports usefulness when the lower platform step launches, the corresponding dual-side stationkeeping that goes up the lower platform step has pair of brackets on the below of collapsible workplatform, spring tongue is installed on the support, spring tongue fixedly has the latch handle, offers the jack that matches with spring tongue on the last lower platform step; Also slide on the dual-side of gangway and be provided with when packing up for last lower platform step fixedly the first locking latch and second of usefulness and lock latch, offer the jack that matches with the first locking latch and the second locking latch on the last lower platform step, the first locking latch and the second locking latch are furnished with fly nut.Adopt said structure, last lower platform step is turning pack up, take up room little, convenience is provided, has saved time and laborsaving for workplatform about the staff.
The utility model compared with prior art has the following advantages and effect: aerial platform compact overall structure, wagon box physical efficiency provide a large amount of residue usage spaces, can transport a large amount of work materials, equipment and instrument on the loading space; The cost of manufacture of aerial platform is lower and practical durable at truck installation mast lift structure, workplatform not only can fold by fore-and-aft direction, and can whole move up at right and left, belonging to not only can aloft work but also can transport the multi-functional special operation car of goods.Telescopic support legs is simple in structure, cost of manufacture is cheap, supporting leg stretches simple operation, leg link mechanism is durable in use; Leg link mechanism can the restraint supporting leg be influenced by horizontal applied force and produces skew, can also carry the application force that movable supporting legs produces in the vertical direction.It is little to take up room after the mast lifting is regained, and the collapsible workplatform that is installed on the mast is very low apart from ground, and use is convenient and swift, and whole mechanism is durable in use.Take up room after workplatform is folding little, folding process is easy to operate, collapsible workplatform durable in use can realize that it moves in the left and right directions integral level, is realized and can freely be adjusted moving velocity that moving process is easy to operate by manual mode.Last lower platform step is turning pack up, take up room little, for the staff up and down workplatform convenience is provided, has saved time and laborsaving.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment aloft work state.
Fig. 2 is the structural representation of the utility model embodiment road traveling state.
Fig. 3 is the structure scheme drawing of the utility model embodiment workplatform travel mechanism.
Fig. 4 is the Facad structure scheme drawing of the utility model embodiment workplatform travel mechanism.
Fig. 5 be the collapsible workplatform of the utility model embodiment last lower platform step structural representation when launching.
Fig. 6 be the collapsible workplatform of the utility model embodiment last lower platform step structural representation when packing up.
Structural representation when Fig. 7 is the contraction of the utility model embodiment retractable supports leg.
Structural representation when Fig. 8 stretches out for the utility model embodiment retractable supports leg.
Fig. 9 is the perspective view of the utility model embodiment mast lift structure deployed condition.
Figure 10 is the perspective view of the utility model embodiment mast lift structure retracted state.
Figure 11 is the planar structure scheme drawing of the utility model embodiment mast lift structure deployed condition.
Figure 12 is the structural representation of the collapsible workplatform of the utility model embodiment when launching.
Figure 13 is the structural representation of the collapsible workplatform of the utility model embodiment when folding.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Referring to Fig. 1-Figure 13, the present embodiment aerial platform, comprise moving body a, mast lift structure b, collapsible workplatform c, retractable supports leg d, mast lift structure b is installed on the lorry casing of moving body a, collapsible workplatform c installs on the mast lift structure b by the e of workplatform travel mechanism horizontal slip, and retractable supports leg d is installed in the lorry bottom half of moving body a.
Referring to Fig. 3-Fig. 4, in the present embodiment, workplatform travel mechanism comprises chain e3, sprocket wheel e4, turning handle e5, sprocket wheel 4 comprises the first sprocket wheel e41, the second sprocket wheel e42 and the 3rd sprocket wheel e43, the first sprocket wheel e41, the second sprocket wheel e42 and the 3rd sprocket wheel e43 are rotatably installed in collapsible workplatform c successively and go up and all mesh with chain e3, the first sprocket wheel e41, the second sprocket wheel e42 are positioned at the homonymy of chain e3, the first sprocket wheel e41 and the 3rd sprocket wheel e4 lay respectively at the both sides of chain e3, and turning handle e5 is fixed on the 3rd sprocket wheel e4.Collapsible workplatform c fixedly has slide block e1, slide block e1 horizontal slip is arranged on the bay-lift, the two ends of chain e3 are fixed on the crane device, be rotatablely equipped with vertical backup bearing e7, horizontal support bearing e8 on the collapsible workplatform c, vertically backup bearing support e7 on the crane device for collapsible workplatform c provides straight up power, the horizontal support bearing supports e8 provides level outside power for collapsible workplatform c on the crane device.Dead bolt e6 is installed on the turning handle e5.
Referring to Fig. 5-Fig. 6, in the present embodiment, the front of collapsible workplatform c offers the gangway of coming in and going out for personnel, last lower platform step f1 is rotatably installed in by step trip shaft f3 on the base in front of collapsible workplatform c, the first under-chassis f6 that supports usefulness when keeping supplying lower platform step f1 and packing up is fixedly arranged at the top of gangway, fixedly have below the collapsible workplatform c and keep supplying the second under-chassis f8 that supports usefulness when lower platform step f1 launches, the corresponding dual-side stationkeeping that goes up lower platform step 1 has pair of brackets on the below of collapsible workplatform c, spring tongue f2 is installed on the support, spring tongue f2 fixedly has latch handle f9, offers the jack that matches with spring tongue f2 on the last lower platform step f1; Also slide on the dual-side of gangway and be provided with when packing up for last lower platform step f1 fixedly that the first locking latch f4 and second of usefulness locks latch f7, offer the jack that matches with the first locking latch f4 and the second locking latch f7 on the last lower platform step f1, the first locking latch f4 and the second locking latch f7 are furnished with fly nut.Last lower platform handrail f5 is fixedly arranged on the dual-side of gangway.The material of last lower platform step f1 adopts aluminum alloy material.
Referring to Fig. 7-Fig. 8, in the present embodiment, retractable supports leg d, comprise supporting leg fixed frame d1, movable supporting legs d2 and leg link mechanism, supporting leg fixed frame d1 is fixed on the bottom of lorry casing, leg link mechanism comprises first connecting rod d3, second connecting rod d4 and adapter sleeve d5, movable supporting legs d2 inserts supporting leg fixed frame d1 and adapter sleeve d5, an end and the supporting leg fixed frame d1 of first connecting rod d3 are hinged, the end of the other end of first connecting rod d3 and second connecting rod d4 is hinged, the middle part of second connecting rod d4 and adapter sleeve d5 are hinged, and the other end of second connecting rod d4 is equipped with and prizes handle.Have pin hole on the movable supporting legs d2, offer the pin hole mating holes that pin hole matches on supporting leg fixed frame d1 and the adapter sleeve d5 respectively, pin hole and pin hole mating holes cooperate by locking latch d6, and locking latch 6 is provided with anticreep latch d7.When movable supporting legs 2 shrank, pin hole mating holes and the pin hole position on the movable supporting legs d2 of supporting leg fixed frame d1 were involutory, and locking latch d6 inserts the pin hole mating holes of supporting leg fixed frame d1 and the pin hole on the movable supporting legs d2; When movable supporting legs d2 stretched out, pin hole mating holes and the pin hole position on the movable supporting legs d2 on the adapter sleeve d5 were involutory, the pin hole mating holes on the locking latch d6 insertion adapter sleeve d5 and the pin hole on the movable supporting legs d2.
Referring to Fig. 9-Figure 11, in the present embodiment, mast lift structure b, comprise mast fixed mechanism b15, the first mast b1a, the second mast b1b, the 3rd mast b1c, fourth mast bar b1d, engine installation, chain gearing, antiseize device and workplatform installing mechanism b5, collapsible workplatform c is installed on the fourth mast bar b1d, the first mast b1a, the second mast b1b, the 3rd mast b1c, the fourth mast bar b1d socket of sliding successively, mast fixed mechanism b15 is fixed on the lorry casing, the first mast b1a is fixed on the mast fixed mechanism b15, engine installation comprises elevating ram b9 and hydraulic power unit b16, the first mast b1a fixedly has elevating ram b9, the piston head of elevating ram b9 connects the second mast b1b, chain gearing comprises the first chain b2, the second chain b3, antiseize device comprises the first steel rope b4, the second steel rope b7, the end of the first chain b2 is fixed on the first mast b1a, the top of the second mast b1b is rotatablely equipped with the first sprocket wheel b17, the first chain b2 goes up the bottom that its other end of back is fixed on the 3rd mast b1c around the first sprocket wheel b17, the end of the second chain b3 is fixed on the second mast b1b, the top of the 3rd mast 1c is rotatablely equipped with the second sprocket wheel b18, the second chain b3 goes up the bottom that its other end of back is fixed on fourth mast bar 1d around the second sprocket wheel b18, the end of the first steel rope b4 is fixed on the top of the first mast b1a, the bottom of the second mast b1b is equipped with the first pulley b19, first steel rope 4 is gone up its other end of back around the first pulley b19 and is fixed on the 3rd mast b1c, one end of second steel rope 7 is fixed on the top of the second mast 1b, the bottom of the 3rd mast b1c is equipped with the second pulley b20, the second steel rope b7 goes up its other end of back around the second pulley b20 and is fixed on the fourth mast bar b1d, hydraulic power unit is installed in first mast b1a bottom, and is connected elevating ram b9 with electromagnetic valve by hydraulic circuit, top and the bottom operation switching push button 11/ lifting control button b12.Mast fixed mechanism b15 is provided with mast leveling pointer b14.Emergent decline starting valve b13 is installed on the hydraulic circuit.The first mast b1a is provided with the first slide block b10 for the second mast b1b slip usefulness, and the second mast b1b is provided with the second slide block b8 for the 3rd mast 1c slip usefulness, and the 3rd mast b1c is provided with the 3rd slide block b6 for fourth mast bar b1d slip usefulness.The first chain b2, the second chain b3 are provided with two.
Referring to Figure 12-Figure 13, in the present embodiment, collapsible workplatform c, coaming plate c1 before comprising, rear end panel c2, left side coaming plate, right coaming plate, platform floor c5 and support gas spring c9, left side coaming plate comprises the first left coaming plate c31, the second left coaming plate c32, right coaming plate comprises the first right coaming plate c41, the second right coaming plate c42, the dual-side difference hinged first left coaming plate c31 of preceding coaming plate c1 and the side of the first right coaming plate c41, another side difference hinged second left coaming plate c32 of the first left coaming plate c31 and the first right coaming plate c41 and the side of the second right coaming plate c42, the dual-side difference hinged second left coaming plate c32 of rear end panel and another side of the second right coaming plate c42, the side of the base articulated platform base plate c5 of preceding coaming plate c1, the first left coaming plate c31, the bracing frame that base on the first right coaming plate c41 fixedly has support platform base plate c5 to use, the opposite side of platform floor c5 fixedly have and are overlapped on the hasp c21 that rear end panel c2 uses.On the base of coaming plate c1, the end of supporting the gas bar of gas spring c9 was hinged on the bottom surface of platform floor c5 before the cylinder barrel end of this support gas spring c9 was hinged on.The side of preceding coaming plate c1, rear end panel c2 fixedly has lock sleeve c61 and the locking latch c62 that cooperatively interacts respectively.Front frame c8 is fixedly arranged at the top of preceding coaming plate 1.Action button c7 is fixedly arranged at the top of preceding coaming plate 1.
Working process: vehicle is stopped in the aloft work destination, the supporting leg of retractable supports leg d stretches out with ground and contacts, collapsible workplatform c launches, after last lower platform step f1 turns down, turn over f1 with lower platform step in the first locking latch f4 and the second locking latch f7 locking, operation top and the bottom operation switching push button 11/ lifting control button b12, start elevating ram b9, make collapsible workplatform c rise to the needed operation height of setting, the turning handle e5 of the control workplatform e of travel mechanism, adjust the operation amplitude of collapsible workplatform c left and right directions, collapsible workplatform c after arriving best job position fixes turning handle e5.Behind the aloft work end of operation, by turning handle e5 collapsible workplatform c left and right directions is adjusted to initial condition, operation top and the bottom operation switching push button 11/ lifting control button b12 drops to the elemental height state with collapsible workplatform c, when the operation personnel leave collapsible workplatform c, and after power tool is moved away from collapsible workplatform c entirely, to go up lower platform step f1 turns back initial condition and locks, after collapsible workplatform c is recovered to initial condition, locking, the supporting leg of retractable supports leg d is recovered to initial condition and locking, can driving vehicle after collapsible workplatform c and supporting leg d have all got back to initial condition and fixation.
Above content described in this specification sheets only is to the explanation of the utility model example.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from the content of the utility model specification sheets or surmount the defined scope of these claims, all should belong to protection domain of the present utility model.

Claims (6)

1. aerial platform, it is characterized in that: comprise moving body, mast lift structure, collapsible workplatform, retractable supports leg, described mast lift structure is installed on the lorry casing of moving body, described collapsible workplatform is installed on the mast lift structure by the horizontal slip of workplatform travel mechanism, and described retractable supports leg is installed in the lorry bottom half of moving body.
2. aerial platform according to claim 1, it is characterized in that: described retractable supports leg comprises the supporting leg fixed frame, movable supporting legs and leg link mechanism, the supporting leg fixed frame is fixed on the bottom of lorry casing, described leg link mechanism comprises first connecting rod, second connecting rod and adapter sleeve, described movable supporting legs inserts supporting leg fixed frame and adapter sleeve, one end and the supporting leg fixed frame of first connecting rod are hinged, one end of the other end of first connecting rod and second connecting rod is hinged, middle part and the adapter sleeve of second connecting rod are hinged, have pin hole on the movable supporting legs, offer the pin hole mating holes that pin hole matches on supporting leg fixed frame and the adapter sleeve respectively, pin hole and pin hole mating holes cooperate by the locking latch.
3. aerial platform according to claim 1, it is characterized in that: described mast lift structure, comprise the mast fixed mechanism, first mast, second mast, the 3rd mast, the fourth mast bar, engine installation, chain gearing and antiseize device, collapsible workplatform is installed on the fourth mast bar, described first mast, second mast, the 3rd mast, the socket of sliding successively of fourth mast bar, the mast fixed mechanism is fixed on the lorry casing of moving body, first mast is fixed on the mast fixed mechanism, engine installation comprises elevating ram and hydraulic power unit, first mast fixedly has elevating ram, the piston head of elevating ram connects second mast, chain gearing comprises first chain, second chain, antiseize device comprises first steel rope, second steel rope, one end of first chain is fixed on first mast, the top of second mast is rotatablely equipped with first sprocket wheel, first chain its other end of back on first sprocket wheel is fixed on the bottom of the 3rd mast, one end of second chain is fixed on second mast, the top of the 3rd mast is rotatablely equipped with second sprocket wheel, second chain its other end of back on second sprocket wheel is fixed on the bottom of fourth mast bar, one end of first steel rope is fixed on the top of first mast, the bottom of second mast is equipped with first pulley, first steel rope its other end of back on first pulley is fixed on the 3rd mast, one end of second steel rope is fixed on the top of second mast, the bottom of the 3rd mast is equipped with second pulley, second steel rope its other end of back on second pulley is fixed on the fourth mast bar, hydraulic power unit is installed in first mast foot, and is connected elevating ram by hydraulic circuit with electromagnetic valve.
4. aerial platform according to claim 1, it is characterized in that: described collapsible workplatform, comprise preceding coaming plate, rear end panel, left side coaming plate, right coaming plate, platform floor, described left coaming plate comprises the first left coaming plate, the second left coaming plate, described right coaming plate comprises the first right coaming plate, the second right coaming plate, a side of the dual-side of the coaming plate difference hinged first left coaming plate and the first right coaming plate before described, another side difference hinged second left coaming plate of the first left coaming plate and the first right coaming plate and a side of the second right coaming plate, the dual-side difference hinged second left coaming plate of described rear end panel and another side of the second right coaming plate, a side of the base articulated platform base plate of coaming plate before described, the first left coaming plate, the bracing frame that base on the first right coaming plate fixedly has the support platform base plate to use.
5. aerial platform according to claim 1, it is characterized in that: workplatform travel mechanism, comprise chain, sprocket wheel and turning handle, described sprocket wheel comprises first sprocket wheel, second sprocket wheel and the 3rd sprocket wheel, first sprocket wheel, second sprocket wheel and the 3rd sprocket wheel are rotatably installed on the collapsible workplatform successively and all mesh with chain, the two ends of described chain are fixed on the mast lift structure, first sprocket wheel, second sprocket wheel are positioned at the homonymy of chain, first sprocket wheel and the 3rd sprocket wheel lay respectively at the both sides of chain, and turning handle is fixed on the 3rd sprocket wheel.
6. aerial platform according to claim 1, it is characterized in that: collapsible workplatform is provided with the lower platform step, the front of described collapsible workplatform offers the gangway of coming in and going out for personnel, last lower platform step is rotatably installed in by the step trip shaft on the base in front of collapsible workplatform, first under-chassis that supports usefulness when keeping supplying the lower platform step and packing up is fixedly arranged at the top of gangway, fixedly have below the collapsible workplatform and keep supplying second under-chassis that supports usefulness when the lower platform step launches, the corresponding dual-side stationkeeping that goes up the lower platform step has pair of brackets on the below of collapsible workplatform, spring tongue is installed on the support, spring tongue fixedly has the latch handle, offers the jack that matches with spring tongue on the last lower platform step; Also slide on the dual-side of gangway and be provided with when packing up for last lower platform step fixedly the first locking latch and second of usefulness and lock latch, offer the jack that matches with the first locking latch and the second locking latch on the last lower platform step, the first locking latch and the second locking latch are furnished with fly nut.
CN 201220713933 2012-12-21 2012-12-21 Overhead working truck Active CN203065116U (en)

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CN103692949A (en) * 2013-12-30 2014-04-02 长城汽车股份有限公司 Mobile servicer for passenger cars
CN104118830A (en) * 2014-07-10 2014-10-29 山东力高升降机械有限公司 Crank arm type elevator work platform
CN104340815A (en) * 2014-09-16 2015-02-11 常熟建工建设集团有限公司苏州分公司 Barrier-free elevator
CN104534088A (en) * 2014-12-26 2015-04-22 苏州威尔特铝合金升降机械有限公司 Anti-dust device of mast type lifting mechanism
CN105967118A (en) * 2016-07-14 2016-09-28 国网山东省电力公司高唐县供电公司 Vehicle-mounted multifunctional maintenance lifting platform
CN107934862A (en) * 2017-12-13 2018-04-20 冯广吉 A kind of electric power apparatus for examination and repair
CN109542016A (en) * 2018-12-11 2019-03-29 长沙中联消防机械有限公司 Extend terraced structure, working bucket assembly and its control method and fire fighting truck
CN110255450A (en) * 2019-06-26 2019-09-20 燕山大学 A kind of collapsible high-altitude lifting maintenance ladder
CN110697593A (en) * 2019-10-18 2020-01-17 徐州市凯诺机械有限公司 Elevator for building site
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* Cited by examiner, † Cited by third party
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CN103692949B (en) * 2013-12-30 2016-10-05 长城汽车股份有限公司 A kind of passenger vehicle Information Mobile Service car
CN103692949A (en) * 2013-12-30 2014-04-02 长城汽车股份有限公司 Mobile servicer for passenger cars
CN104118830A (en) * 2014-07-10 2014-10-29 山东力高升降机械有限公司 Crank arm type elevator work platform
CN104340815A (en) * 2014-09-16 2015-02-11 常熟建工建设集团有限公司苏州分公司 Barrier-free elevator
CN104534088A (en) * 2014-12-26 2015-04-22 苏州威尔特铝合金升降机械有限公司 Anti-dust device of mast type lifting mechanism
CN105967118B (en) * 2016-07-14 2019-01-22 国网山东省电力公司高唐县供电公司 Vehicular multifunctional overhauls hoistable platform
CN105967118A (en) * 2016-07-14 2016-09-28 国网山东省电力公司高唐县供电公司 Vehicle-mounted multifunctional maintenance lifting platform
CN107934862A (en) * 2017-12-13 2018-04-20 冯广吉 A kind of electric power apparatus for examination and repair
CN109542016A (en) * 2018-12-11 2019-03-29 长沙中联消防机械有限公司 Extend terraced structure, working bucket assembly and its control method and fire fighting truck
CN110255450A (en) * 2019-06-26 2019-09-20 燕山大学 A kind of collapsible high-altitude lifting maintenance ladder
CN110255450B (en) * 2019-06-26 2021-03-30 燕山大学 Foldable high altitude lift maintenance ladder
CN110697593A (en) * 2019-10-18 2020-01-17 徐州市凯诺机械有限公司 Elevator for building site
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