CN206088956U - High altitude construction car work platform levelling device with prevent platform function of tumbling - Google Patents
High altitude construction car work platform levelling device with prevent platform function of tumbling Download PDFInfo
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- CN206088956U CN206088956U CN201620894158.2U CN201620894158U CN206088956U CN 206088956 U CN206088956 U CN 206088956U CN 201620894158 U CN201620894158 U CN 201620894158U CN 206088956 U CN206088956 U CN 206088956U
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Abstract
High altitude construction car work platform levelling device with prevent platform function of tumbling, work platform articulates through axle I and arm I, and arm I articulates through axle II and arm II... Bottom arm X is articulated with the revolving stage through axle X+1, and the articulated shaft punishment of per two arms do not is equipped with forward leveling wheel I... Until forward leveling wheel X+1, also has reverse leveling wheel I... Until reverse leveling wheel X+1, the last upper end that is fixed with forward cable and reverse cable of work platform, the forward cable loops through I outer fringe on the forward leveling wheel... On forward leveling wheel X+1 outer fringe lower extreme is connected to the revolving stage, reverse cable loops through I inner edge on the reverse leveling wheel... On reverse leveling wheel X+1 inner edge lower extreme is connected to the revolving stage. The utility model discloses can adjust that work platform is in the horizontality so that high altitude construction, can prevent again that the motion from strikeing or work platform receives tumbling of leading to under the condition such as exogenic action, and the structure principle is simple, low in manufacturing cost, and it is convenient that the installation is adjusted, leveling continuous and stable.
Description
Technical field
The utility model is related to a kind of high-lift operation car platform leveling device with anti-platform tilt functions, belongs to
High-altitude operation vehicle technical field.
Background technology
High-altitude operation vehicle is for transporting the equipment that personnel, instrument and material are operated to high-altitude specified location.Its work
Make platform in high-lift operation car, needs are remained in horizontality, to guarantee platform operations personnel steadily safety
Carry out work high above the ground, it is therefore desirable to working platform leveling device is set, its object is to the arm support elevation angle change when adjust platform
With the angle of arm support, workbench is set to be in level all the time.Connected using parallelogram more than existing collapsible high-altitude operation vehicle
Two kinds of forms of bar leveling or the leveling of chain sprocket formula.Two kinds of forms are kept and workbench by pull bar or chain（Contain
Load）The balance of gravity torque, makes workbench be in level.Two kinds of forms have simple structure, good balance effect it is excellent
Point, but during work high above the ground, can only ensure that working bucket is not tumbled to gravity torque direction, but then lack guarantor in the reverse direction
When shield, elliptical gear or job platform are subject to moment loading rightabout with gravity torque, the oriented gravity torque of job platform
The possibility that rightabout is tumbled, causes personnel and material to be poured out from workbench, therefore there is potential safety hazard.
Chinese document CN201120571760X discloses a kind of dress of the high-lift operation car bucket leveling with anti-overturn mechanism
Put, be that the levelling device and multigroup parallelogram linkage of multigroup parallelogram linkage composition constitutes anti-tipping machine
Structure.The mechanical work principle is correct, but complex structure, installs and adjusts very inconvenient, needs to be adjusted each length of connecting rod,
The mechanism is in itself that one kind crosses positioner, and error in length can make mechanism produce internal force and damage, and then cause failure mechanisms
May.
The content of the invention
Technical problem to be solved in the utility model is the defect for overcoming prior art to exist, there is provided a kind of structure letter
Single, easy to adjust, the leveling continuous and stable of installation, the high-lift operation car platform leveling device with anti-platform tilting mechanism.
To solve the above problems, the technical solution of the utility model is that a kind of high-altitude with anti-platform tilt functions is made
Industry car working platform leveling device, the working arm of high-altitude operation vehicle is followed successively by from top to bottom arm I, arm II, arm III ... until arm X；
Workbench is hinged by axle I with arm I, and arm I is hinged by axle II with arm II；Arm II is hinged by axle III with arm III ... remaining arm
Hinged relationship analogize, nethermost arm X axises X+1 is hinged with turntable, it is characterised in that at the jointed shaft of each two arm,
Positive leveling wheel I, positive leveling wheel II ... are respectively equipped with until positive leveling wheel X+1；At the jointed shaft of each two arm, also divide
Reverse leveling wheel I, reverse leveling wheel II ... are not provided with until reverse leveling wheel X+1；Positive drawing is respectively fixed with workbench
The upper end of the upper end of rope and reverse drag-line；The positive drag-line passes sequentially through the positive outer rim of leveling wheel I, the positive outer rim ... of leveling wheel II
Until positive leveling wheel X+1 outer rims, the lower end of the positive drag-line is connected on the turntable；The reverse drag-line is passed sequentially through reversely
The inner edge of leveling wheel I, the reverse inner edge ... of leveling wheel II are until reverse leveling wheel X+1 inner edges, the lower end of the reverse drag-line is connected to institute
State on turntable.
The utility model has following prioritization scheme：
Often saving can be respectively arranged with transition wheel on working arm, respectively the straight transition wheel X of transition wheel I, transition wheel II ...；With
To adjust trend of the positive drag-line between two positive leveling wheels；Or to adjust reverse drag-line two reverse leveling wheels it
Between trend.
" lower end of positive drag-line is connected on the turntable " and " lower end of reverse drag-line is connected on the turntable "
Connected mode is：Adjusting means I and adjusting means II are provided with the turntable；The lower end of the positive drag-line is connected to the tune
On regulating device I；The lower end of the reverse drag-line is connected in the adjusting means II.
Described adjusting means I is by the rotatable nut on turntable, and the screw rod being fixedly connected with positive drag-line lower end
Composition；Described adjusting means II is by the rotatable nut on turntable, and the screw rod group being fixedly connected with reverse drag-line lower end
Into.
The equal diameters of each positive leveling wheel, the equal diameters of each reverse leveling wheel.
The positive drag-line, reverse drag-line adopt the flexible material such as steel wire rope or chain, can be freely curved in two dimensional surface
It is bent.
In other words, the utility model proposes one kind is using positive drag-line, reverse drag-line, reversely positive leveling wheel group, tune
The dress of the high-lift operation car platform erection with anti-platform tilt functions that flat wheel group, transition wheel group, adjusting means are constituted
Put, by taking the high-altitude operation vehicle of 3 sections of working arms as an example：It is provided with positive drag-line, reverse drag-line, positive leveling wheel I, positive leveling wheel
IIth, positive leveling wheel III, positive leveling wheel IV, reverse leveling wheel I, reverse leveling wheel II, reverse leveling wheel III, reverse leveling wheel
IVth, workbench, arm I, arm II, arm III, turntable, axle I, axle II, axle III, axle IV, transition wheel I, transition wheel II, transition wheel III,
Transition wheel IV, transition wheel V, transition wheel VI, adjusting means I, adjusting means II；Workbench, positive leveling wheel I, reverse leveling
Wheel I, arm I is hinged by axle I, and arm I, positive leveling wheel II, reverse leveling wheel II, arm II are hinged by axle II, arm II, positive tune
Flat wheel III, reverse leveling wheel III, arm III are hinged by axle III, and arm III, positive leveling wheel IV, reverse leveling wheel IV, turntable pass through
Axle IV is hinged；Transition wheel I is hinged with arm I, and transition wheel II, transition wheel III are hinged with arm II, transition wheel IV, transition wheel V and arm III
It is hinged, transition wheel VI is hinged with turntable；Positive drag-line one end is fixedly connected with workbench, through the positive outer rim of leveling wheel I, just
To the outer rim of leveling wheel II, the positive outer rim of leveling wheel III, the positive outer rim of leveling wheel IV, the other end connects through adjusting means with turntable
I connection；Reversely drag-line one end is fixedly connected with workbench, through the reverse inner edge of leveling wheel I, the reverse inner edge of leveling wheel II, instead
To the inner edge of leveling wheel III, the reverse inner edge of leveling wheel IV, the other end is connected with turntable by adjusting means II.
Positive leveling wheel I described in the utility model, positive leveling wheel II, positive leveling wheel III, positive leveling wheel IV are straight
Footpath is equal, a diameter of 2R；Reverse leveling wheel I, reverse leveling wheel II, reverse leveling wheel III, the reverse equal diameters of leveling wheel IV, directly
Footpath is 2r；R can be equal to r.
Transition wheel described in the utility model, it is therefore intended that the trend and arrangement of adjustment drag-line, it is ensured that drag-line becomes in arm support
The wheel of envelope leveling all the time is without deviating from for convenience of miscellaneous part mounting arrangements, transition wheel quantity can increase and decrease, position during width
Can change with radius.Transition wheel I, transition wheel II change the trend of reverse drag-line, make reverse drag-line begin in the amplitude changing process of arm I
The reverse leveling wheel II of whole envelope is without deviating from transition wheel III, transition wheel IV change the trend of reverse drag-line, make reverse drag-line in arm
In II amplitude changing process all the time the reverse leveling wheel III of envelope without deviating from, transition wheel IV, transition wheel V change the trend of positive drag-line,
Make positive drag-line in the amplitude changing process of arm III all the time envelope forward direction leveling wheel IV without deviating from；Transition wheel VI changes positive drag-line
Trend, adjusts convenient installation of positive drag-line.
The end or middle part of positive drag-line described in the utility model and reverse drag-line arranges adjusting means, by adjusting dress
I is put, the length of positive drag-line is adjusted, workbench is made relative to the earth holding level；By adjusting means II, adjust and reversely draw
The length of rope, makes workbench reversely be tensioned, the trend for suppressing workbench reversely to tumble, and realizes anti-platform tilt functions.
Operation principle：From geometrical principle, as the luffing any rotation θ counterclockwise around axle II of arm I, due to forward direction
Leveling wheel I and the positive diameter of leveling wheel II are 2R, and the length of positive drag-line is constant, and positive leveling wheel I, positive leveling wheel
IIth, the relative position of arm I is constant, and positive drag-line discharges the length of θ * R on positive leveling wheel II, while in positive leveling wheel I
Coenvelope enters the length of θ * R, make workbench turn clockwise angle, θ when, relative to the earth keep level.When arm I is around axle II
Clockwise during luffing any rotation θ, positive drag-line enters the length of θ * R in the positive coenvelope of leveling wheel II, while in forward direction
The length of θ * R is discharged on leveling wheel I, when making workbench rotated counterclockwise by angle θ, relative to the earth level is kept.
As the luffing any rotation θ counterclockwise around axle III of arm II, due to positive leveling wheel I, positive leveling wheel II, just
2R is to the diameter of leveling wheel III, the length of positive drag-line is constant, and positive leveling wheel I, positive leveling wheel II, positive leveling wheel
IIIth, arm I, the relative position of arm II are constant, and positive drag-line discharges the length of θ * R on positive leveling wheel III, in positive leveling wheel
Length is constant on II, while enter the length of θ * R in the positive coenvelope of leveling wheel I, make workbench turn clockwise angle, θ when,
It is flat relative to the earth beginning water holding.As the luffing any rotation θ clockwise around axle III of arm II, positive drag-line is in positive leveling wheel
III coenvelope enters the length of θ * R, and length is constant on positive leveling wheel II, while discharging the length of θ * R on positive leveling wheel I
Degree, when making workbench rotated counterclockwise by angle θ, relative to the earth level is kept.
As the luffing any rotation θ counterclockwise around axle IV of arm III, due to positive leveling wheel I, positive leveling wheel II, just
2R is to leveling wheel III, the positive diameter of leveling wheel IV, the length of positive drag-line is constant, and positive leveling wheel I, positive leveling wheel
IIth, positive leveling wheel III, transition wheel IV, transition wheel V, positive leveling wheel IV, arm I, arm II, the relative position of arm III are constant, positive
Drag-line discharges the length of θ * R on leveling wheel IV, and length is constant on positive leveling wheel III and positive leveling wheel II, while
The positive coenvelope of leveling wheel I enters the length of θ * R, make workbench turn clockwise angle, θ when, it is flat relative to the earth beginning water holding.
As the luffing any rotation θ clockwise around axle IV of arm III, positive drag-line enters the length of θ * R in the positive coenvelope of leveling wheel IV
Degree, length is constant on positive leveling wheel III and positive leveling wheel II, while the length of θ * R is discharged on positive leveling wheel I,
When making workbench rotated counterclockwise by angle θ, relative to the earth level is kept.
Reverse drag-line described in the utility model is identical with the operation principle of positive drag-line.
Positive drag-line described in the utility model, reverse drag-line adopt the flexible material such as steel wire rope or chain, can be in two dimension
Free bend in plane.Produced impact, moves more steady during the absorbable luffing range of cantilever support of flexible material.
The high-lift operation car platform leveling device of anti-platform tilt functions described in the utility model, is using process
Middle generation workbench is inclined, by the length for adjusting positive drag-line and reverse drag-line, you can workbench is aligned, relative to
The earth keeps level.
Levelling device leveling process continuous and stable described in the utility model, and have the feelings of the trend of tumbling in workbench
Opposite direction workbench can be held automatically under condition, prevent workbench from tumbling.
The utility model has compared with prior art advantages below：Can adjustment work platform in horizontality so as to
In work high above the ground, elliptical gear or job platform can be prevented to be subject to again, and external force is caused when acting on to tumble, simple structure,
Low cost of manufacture, installs easy to adjust, leveling continuous and stable.
Description of the drawings
Fig. 1 is the structural representation of an embodiment of the present utility model；
Fig. 2 be I in Fig. 1 at mplifying structure schematic diagram；
Fig. 3 be II in Fig. 1 at mplifying structure schematic diagram；
Fig. 4 be III in Fig. 1 at mplifying structure schematic diagram.
In figure：Positive drag-line 1, reverse drag-line 2, positive leveling wheel I 3, positive leveling wheel II 4, positive leveling wheel III 5, just
To leveling wheel IV 6, reverse leveling wheel I 7, reverse leveling wheel II 8, reverse leveling wheel III 9, reverse leveling wheel IV 10, workbench
11, arm I 12, arm II 13, arm III 14, turntable 15；Axle I 16, axle II 17, axle III 18, axle IV 19, transition wheel I 20, transition wheel II
21, transition wheel III 22, transition wheel IV 23, transition wheel V 24, transition wheel VI 25, adjusting means I（Screw rod, nut）26, adjust dress
Put II 27（Screw rod, nut）, the screw rod 28 in adjusting means I, the screw rod 29 in adjusting means II.
Specific embodiment
The technical solution of the utility model is further described in detail with reference to the accompanying drawings and examples.
Embodiment 1, the high-lift operation car platform leveling device with anti-platform tilt functions, as shown in figure 1, for originally
The structural representation of one embodiment of utility model.The present embodiment is provided with positive steel wire rope 1, reverse steel wire rope 2, positive leveling
Take turns I 3, it is positive leveling wheel II 4, positive leveling wheel III 5, positive leveling wheel IV 6, reverse leveling wheel I 7, reverse leveling wheel II 8, anti-
To leveling wheel III 9, reverse leveling wheel IV 10, workbench 11, arm I 12, arm II 13, arm III 14, turntable 15, axle I 16, axle II
17th, axle III 18, axle IV 19, transition wheel I 20, transition wheel II 21, transition wheel III 22, transition wheel IV 23, transition wheel V 24, transition wheel
VI 25, adjusting nut I 26, adjusting nut II 27；Workbench 11, positive leveling wheel 3, reverse leveling wheel I 7, arm I 12 pass through axle
I 16 are hinged, and arm I 12, positive leveling wheel II 4, reverse leveling wheel II 8, arm II 13 are hinged by axle II 17, arm II 13, positive tune
Flat wheel III 5, reverse leveling wheel III 9, arm III 14 are hinged by axle III 18, arm III 14, positive leveling wheel IV 6, reverse leveling wheel IV
10th, turntable 15 is hinged by axle IV；Transition wheel I 20 is hinged with arm I 12, and transition wheel II 21, transition wheel III 22 are hinged with arm II 13,
Transition wheel IV 23, transition wheel V 24 are hinged with arm III 14, and transition wheel VI 25 is hinged with turntable 15；The one end of positive steel wire rope 1 and work
Make platform 11 to be fixedly connected, through the positive outer rim of leveling wheel I 3, the positive outer rim of leveling wheel II 4, the positive outer rim of leveling wheel III 5, just
To the outer rim of leveling wheel IV 6, the other end passes through adjusting means I 26 with turntable 15（Legend is screw rod, nut）Connection；Reverse steel wire rope
2 one end are fixedly connected with workbench 11, through the inner edge 7 of reverse leveling wheel I, the reverse inner edge of leveling wheel II 8, reverse leveling wheel III
9 inner edges, the reverse inner edge of leveling wheel IV 10, the other end passes through adjusting means II 27 with turntable 15（Legend is screw rod, nut）Connection.
Positive leveling steel wire rope is arranged in two parallel planes with reverse anti-tipping steel wire rope in the present embodiment.
Positive leveling wheel I 3, positive leveling wheel II 4, positive leveling wheel III 5, the positive diameter of leveling wheel IV 6 in the present embodiment
It is equal；Reverse leveling wheel I 7, reverse leveling wheel II 8, reverse leveling wheel III 9, the reverse equal diameters of leveling wheel IV 10.
Transition wheel I 20, transition wheel II 21 change the trend of reverse steel wire rope 2 in the present embodiment, make reverse steel wire rope 2 in arm
All the time the reverse leveling wheel II 8 of envelope changes reverse steel wire without deviating from, transition wheel III 22, transition wheel IV 23 in I 12 amplitude changing process
Rope 2 trend, make reverse steel wire rope 2 in the amplitude changing process of arm II 13 all the time the reverse leveling wheel III 9 of envelope without deviating from transition wheel
IV 23, transition wheel V 24 changes the trend of positive steel wire rope 1, makes the envelope all the time in the amplitude changing process of arm III 14 of positive steel wire rope 1
Positive leveling wheel IV 6 without deviating from；Transition wheel VI 25 changes the trend of positive drag-line, adjusts convenient installation of positive drag-line.
The positive turntable connection end of steel wire rope 1 arranges adjusting means I 26 in the present embodiment（Legend is screw rod, nut）, pass through
Adjusting nut screws in the length of screw rod, adjusts the length of positive drag-line, makes workbench relative to the earth holding level；Reverse steel
The turntable connection end of cord 2 arranges adjusting means II 27（Legend is screw rod, nut）, the length of screw rod is screwed in by adjusting nut,
The length of reverse drag-line is adjusted, workbench is reversely tensioned, the trend for suppressing workbench reversely to tumble realizes that anti-platform inclines
Turn over function.
Transition wheel described in the utility model, it is therefore intended that the trend and arrangement of adjustment drag-line, it is ensured that drag-line becomes in arm support
During width the wheel of bag leveling all the time without deviating from, for convenience of miscellaneous part mounting arrangements, transition wheel quantity can increase and decrease, position and
Radius can change.
Positive drag-line described in the utility model, reverse drag-line adopt the flexible material such as chain or steel wire rope.Flexible material
Produced impact during absorbable luffing range of cantilever support, moves more steady.
The structure leveling process that the utility model is stated is continuous, stable, and has the trend of tumbling in workbench
In the case of can automatically opposite direction pull workbench, prevent workbench from tumbling.
The high-lift operation car platform leveling device of the anti-platform tilt functions that the utility model is stated, in use
Generation workbench is inclined, and by rotating adjusting nut the length of adjusting screw rod, the positive drag-line of regulation and reverse drag-line are screwed in
Length, you can realize that workbench, relative to the earth holding level, prevents workbench from tumbling again.
The adjusting means of the present embodiment is placed on turntable end, it is also possible to workbench end or drag-line middle part are placed on, to facilitate peace
Dress is adjusted to principle, and adjusting means can adopt the device of all adjustable guy cable lengths such as screw rod, leading screw, back-off.
Above example is only the explanation to specific embodiment of the present utility model, rather than to limit of the present utility model
System, person skilled in the relevant technique can also make each in the case of without departing from principle of the present utility model and scope
Plant conversion and change and obtain the technical scheme of corresponding equivalent, therefore the technical scheme of all equivalents should be included into this reality
With new scope of patent protection.
Claims (6)
1. a kind of high-lift operation car platform leveling device with anti-platform tilt functions, the working arm of high-altitude operation vehicle from
Arm I, arm II, arm III ... are followed successively by under above until arm X；Workbench is hinged by axle I with arm I, and arm I is by axle II and arm II
It is hinged；Arm II is hinged by axle III with arm III ..., and the hinged relationship of remaining arm is analogized, and nethermost arm X is by axle X+1 and turntable
It is hinged, it is characterised in that at the jointed shaft of each two arm, is respectively equipped with positive leveling wheel I, positive leveling wheel II ... until just
To leveling wheel X+1；At the jointed shaft of each two arm, reverse leveling wheel I, reverse leveling wheel II ... are further respectively had until reversely
Leveling wheel X+1；The upper end of positive drag-line and the upper end of reverse drag-line are respectively fixed with workbench；The positive drag-line leads to successively
The positive outer rim of leveling wheel I, the positive outer rim ... of leveling wheel II are crossed until positive leveling wheel X+1 outer rims, the lower end of the positive drag-line connects
It is connected on the turntable；The reverse drag-line passes sequentially through the reverse inner edge of leveling wheel I, the reverse inner edge ... of leveling wheel II until reversely adjusting
Flat wheel X+1 inner edges, the lower end of the reverse drag-line is connected on the turntable.
2. the high-lift operation car platform leveling device with anti-platform tilt functions according to claim 1, it is special
Levy and be, often saving can be respectively arranged with transition wheel, respectively transition wheel I, transition wheel II ... until transition wheel Y on working arm；
To adjust trend of the positive drag-line between two positive leveling wheels；Or to adjust reverse drag-line in two reverse leveling wheels
Between trend.
3. the high-lift operation car platform leveling device with anti-platform tilt functions according to claim 1, it is special
Levy and be, the company of " lower end of positive drag-line is connected on the turntable " and " lower end of reverse drag-line is connected on the turntable "
The mode of connecing is：Adjusting means I and adjusting means II are provided with the turntable；The lower end of the positive drag-line is connected to the regulation
On device I；The lower end of the reverse drag-line is connected in the adjusting means II.
4. the high-lift operation car platform leveling device with anti-platform tilt functions according to claim 3, it is special
Levy and be, described adjusting means I is by the rotatable nut on turntable, and the screw rod group being fixedly connected with positive drag-line lower end
Into；Described adjusting means II is by the rotatable nut on turntable, and the screw rod composition being fixedly connected with reverse drag-line lower end.
5. the high-lift operation car platform leveling device with anti-platform tilt functions according to claim 1, it is special
Levy and be, the equal diameters of each positive leveling wheel；The equal diameters of each reverse leveling wheel.
6. the high-lift operation car platform erection with anti-platform tilt functions according to one of claim 1-5 is filled
Put, it is characterised in that the positive drag-line, reverse drag-line using steel wire rope or chain, can in two dimensional surface free bend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620894158.2U CN206088956U (en) | 2016-08-17 | 2016-08-17 | High altitude construction car work platform levelling device with prevent platform function of tumbling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620894158.2U CN206088956U (en) | 2016-08-17 | 2016-08-17 | High altitude construction car work platform levelling device with prevent platform function of tumbling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206088956U true CN206088956U (en) | 2017-04-12 |
Family
ID=58468818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620894158.2U Expired - Fee Related CN206088956U (en) | 2016-08-17 | 2016-08-17 | High altitude construction car work platform levelling device with prevent platform function of tumbling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206088956U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044662A (en) * | 2016-08-17 | 2016-10-26 | 徐州海伦哲专用车辆股份有限公司 | Aerial platform vehicle work platform leveling device with platform tiling prevention function |
| CN109080602A (en) * | 2018-06-23 | 2018-12-25 | 河南速达电动汽车科技有限公司 | A kind of vehicle and its parking brake |
-
2016
- 2016-08-17 CN CN201620894158.2U patent/CN206088956U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044662A (en) * | 2016-08-17 | 2016-10-26 | 徐州海伦哲专用车辆股份有限公司 | Aerial platform vehicle work platform leveling device with platform tiling prevention function |
| CN109080602A (en) * | 2018-06-23 | 2018-12-25 | 河南速达电动汽车科技有限公司 | A kind of vehicle and its parking brake |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20180817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |