CN107879295A - A kind of luffing device and aerial work platform of Tape movement counterweight - Google Patents
A kind of luffing device and aerial work platform of Tape movement counterweight Download PDFInfo
- Publication number
- CN107879295A CN107879295A CN201711309376.0A CN201711309376A CN107879295A CN 107879295 A CN107879295 A CN 107879295A CN 201711309376 A CN201711309376 A CN 201711309376A CN 107879295 A CN107879295 A CN 107879295A
- Authority
- CN
- China
- Prior art keywords
- turntable
- counterweight
- luffing
- connecting rod
- arm support
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000011105 stabilization Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a kind of luffing device and aerial work platform of Tape movement counterweight, including turntable, arm support, jib lubbing mechanism, connecting rod, mobile counterweight is installed on turntable, jib lubbing mechanism is connected with turntable, arm support is connected with jib lubbing mechanism, and connecting rod two end is connected with jib lubbing mechanism and mobile counterweight；Drive mobile counterweight to be moved along turntable fore-and-aft direction by connecting rod when jib lubbing mechanism drives luffing range of cantilever support or drive mobile counterweight to be overturn to turntable fore-and-aft direction by connecting rod.The present invention is ingenious to drive mobile counterweight adaptively to move forward and backward using four-link luffing, makes whole aircraft reliability, stability, practicality good, cost is low.
Description
Technical field
The present invention relates to mechanical field, the more particularly to a kind of luffing device and aerial work platform of Tape movement counterweight.
Background technology
High-altitude operation vehicle is to transport staff and be pointed to the equipment in high-altitude using equipment to high-altitude to be installed, tie up
Shield, the special vehicle of cleaning, with transaction capabilities are good, operation with traditional operating type such as scaffolding, ladder compared with
The advantages that efficiency high, job safety, it is now widely used for the infrastructure industry such as electric power, traffic, petrochemical industry, communication, gardens.
Domestic high-altitude operation vehicle is mainly formed anti-in terms of job stabilization by vehicle body deadweight to supporting leg at present
Torque carrys out torque caused by balanced operation platform to realize the stabilization of its operation, but with big height, large span equipment in industry
Facility is continuously increased, it is desirable to which the operation height and amplitude of high-altitude operation vehicle are also continuously increased, and in turn result in high-altitude operation vehicle
Supporting leg span is also increasing, but larger supporting leg span not only needs to take larger Active workings space, and larger
Supporting leg span is also easy to cause frame distortion and then influences operational security.
The span of horizontal support legs is generally carried out classification pipe by existing high-altitude operation vehicle in order to adapt to different operating environments
Reason, the full stretching of horizontal support legs is generally divided into, partly stretches out and does not stretch out three kinds of working conditions, three kinds of working conditions are corresponding to produce three
The different transaction capabilities curve of kind, operating environment that this often sacrifices operation height and operation amplitude is adapted to, with 18 meters
Exemplified by high-altitude operation vehicle, under the fully extended state of horizontal support legs maximum operation amplitude be 12 meters, maximum operation height be 18 meters,
Operation height is 12.5 meters when operation amplitude is 9 meters, and when operation amplitude is 6 meters, operation height is 16 meters；Horizontal support legs are partly stretched
Maximum operation amplitude under doing well is 9 meters, and operation height now is only 6 meters；Maximum under horizontal support legs not stretching state
6 meters of operation amplitude, operation height now also only has 6 meters, and can only be worked in rear area, when high-altitude operation vehicle is needed narrow
When the narrow place in narrow road face or space carries out work high above the ground, often horizontal support legs half stretch out and not stretching situation under corresponding to
Operation height and amplitude can not meet requirement, can only complete work high above the ground by step ladder or miscellaneous equipment, this is serious
High-altitude working safety operational procedure is violated, operation is absolutely unsafe, and has very high potential safety hazard, personal wound occurs when serious
Die accident.
In order to solve the above problems, patent publication No. CN106629523A discloses a kind of high-altitude with self-stabilization system
Operation Van and its self-stabilization control method.The patent promotes counterweight by single hydraulic jack, passes through each sensor
It is automatic to realize with tilting moment caused by balanced operation platform that the movement of feedback control counterweight makes it produce stabilizing moment
Stability contorting.Patent publication No. CN1287966A discloses is retracted counterweight for straight arm type aerial work platform, the patent
Counterweight can be retracted by single hydraulic jack or fluid motor-driven to move, and balanced by the feedback control of each level sensor
The movement of counterweight makes it produce stabilizing moment with tilting moment caused by balanced operation platform to realize automatic stabilisation control.
The two schemes of prior art are moved using single hydraulic jack driving mobile counterweight, and use automatically controlled side
Formula control mobile counterweight movement, the structural reliability and stability are poor, and cost is high, poor practicability.
The content of the invention
In view of this, in order to mechanically drive mobile counterweight to move, raising reliability and stability and practicality,
The present invention proposes a kind of luffing device and aerial work platform of Tape movement counterweight.
On the one hand, the invention provides a kind of luffing device of Tape movement counterweight, including turntable, arm support, jib lubbing mechanism, company
Bar, mobile counterweight is installed on turntable, jib lubbing mechanism is connected with turntable, and arm support is connected with jib lubbing mechanism, connecting rod two end
It is connected with jib lubbing mechanism and mobile counterweight；Mobile counterweight is driven along turntable by connecting rod when jib lubbing mechanism drives luffing range of cantilever support
Fore-and-aft direction is mobile or drives mobile counterweight to be overturn to turntable fore-and-aft direction by connecting rod.
Further, jib lubbing mechanism includes first support bar, second support bar, amplitude oil cylinder；First support bar both ends with
Arm support is connected with turntable, and second support bar both ends are connected with arm support and turntable, amplitude oil cylinder both ends and arm support and first support bar
Connection, first support bar, second support bar, arm support, turntable, amplitude oil cylinder form four-link luffing；Connecting rod two end is with moving
Dynamic counterweight connects with second support bar.
Further, guide rail is provided with turntable, mobile counterweight is arranged on guide rail；When jib lubbing mechanism drive arm support to
During upper luffing, connecting rod drives mobile counterweight to be moved along guide rail to turntable front；When the downward luffing of jib lubbing mechanism driving arm support, even
Bar drives mobile counterweight to be moved along guide rail to turntable rear.
Further, guide rail is arranged horizontally in turntable rear along turntable fore-and-aft direction.
Further, guide rail and mobile counterweight are located at the middle part of turntable left and right directions.
Further, mobile counterweight is hinged by jointed shaft and turntable, and mobile counterweight is hinged on turntable rear, when luffing machine
During the structure driving upward luffing of arm support, connecting rod drives mobile counterweight to be overturn forward around jointed shaft；When jib lubbing mechanism driving arm support is downward
During luffing, connecting rod drives mobile counterweight to be turned over around jointed shaft.
Further, mobile counterweight is located at the middle part of turntable left and right directions.
Further, fixed weight is installed in turntable afterbody.
On the other hand, present invention also offers a kind of aerial work platform, including chassis and above-mentioned Tape movement counterweight
Luffing device, turntable be arranged on chassis on, turntable can with respect to chassis 360 degree rotate freely.
The luffing device and aerial work platform of a kind of Tape movement counterweight provided by the invention are compared with prior art beneficial to effect
It is：
1st, using mechanical system driving mobile counterweight movement, reliability, stability, practicality are good, and it is excellent that cost is low etc.
Point.
2nd, the present invention is ingenious make use of existing jib lubbing mechanism movement characteristic, with drive the movable of mobile counterweight or
Front and rear upset, realize what vehicle center of gravity adaptively moved.When the upward luffing of arm support, mobile counterweight can be adaptively to reach
It is dynamic.When the downward luffing of arm support, mobile counterweight can be adaptively moved rearwards.The stability that leaned forward during arm support horizontal level is good, arm
During frame maximum angle, hypsokinesis stability is good.The aerial work platform whole range operation of bigger specification can be realized；It is either smaller
Counterweight, realize bigger operation amplitude.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of upward luffing view of luffing device of Tape movement counterweight of the first embodiment of the present invention；
Fig. 2 is a kind of downward luffing view of luffing device of Tape movement counterweight of the first embodiment of the present invention；
Fig. 3 is a kind of upward luffing view of luffing device of Tape movement counterweight of the second embodiment of the present invention；
Fig. 4 is a kind of downward luffing view of luffing device of Tape movement counterweight of the second embodiment of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As depicted in figs. 1 and 2, the present invention preferred a kind of luffing device of Tape movement counterweight of first embodiment, Fig. 1 is
A kind of upward luffing view of the luffing device of Tape movement counterweight, Fig. 2 are that a kind of luffing device of Tape movement counterweight is downward
Luffing view.
As depicted in figs. 1 and 2, a kind of luffing device of Tape movement counterweight, including turntable (not shown), arm support 6,
One support bar 7, second support bar 5, amplitude oil cylinder 8, connecting rod 4；Guide rail 3 is provided with turntable, mobile counterweight 2 is arranged on guide rail
On 3.Guide rail 3 is arranged horizontally in turntable rear along turntable fore-and-aft direction, and positioned at the middle part of turntable left and right directions.In turntable afterbody
Fixed weight 1 is installed.
The both ends of first support bar 7 are connected with arm support 6 and turntable, and the both ends of second support bar 5 are connected with arm support 6 and turntable, are become
The both ends of width oil cylinder 8 are connected with arm support 6 and first support bar 7, first support bar 7, second support bar 5, arm support 6, turntable, luffing oil
Cylinder 8 forms four-link luffing；The both ends of connecting rod 4 are connected with mobile counterweight 2 and second support bar 5；Four-link luffing leads to
Crossing connecting rod 4 drives mobile counterweight 2 to be moved along turntable fore-and-aft direction.As shown in figure 1, when four-link luffing drive arm support 6 to
During upper luffing, connecting rod 4 drives mobile counterweight 2 to be moved along guide rail 3 to turntable front.As shown in Fig. 2 when four-link luffing drives
During swing arm 6 downward luffing of frame, connecting rod 4 drives mobile counterweight 2 to be moved along guide rail 3 to turntable rear.
The present invention is ingenious to make use of existing four-link luffing movement characteristic, to drive the front and rear shifting of mobile counterweight 2
It is dynamic, realize what vehicle center of gravity adaptively moved.When 6 upward luffing of arm support, mobile counterweight 2 can be moved forward adaptively.
When 6 downward luffing of arm support, mobile counterweight 2 can be adaptively moved rearwards.As shown in Fig. 2 during 6 horizontal level of arm support, it is mobile
Counterweight 2 is located at rearmost end, and the aerial work platform stability that leans forward is good.As shown in figure 1, during 6 maximum angle of arm support, mobile counterweight 2
Positioned at front end, aerial work platform hypsokinesis stability is good.The aerial work platform whole range operation of bigger specification can be realized；
Either smaller counterweight, realize bigger operation amplitude.
As shown in Figure 3 and Figure 4, the present invention preferred a kind of luffing device of Tape movement counterweight of second embodiment, Fig. 3 is
A kind of upward luffing view of the luffing device of Tape movement counterweight, Fig. 4 are that a kind of luffing device of Tape movement counterweight is downward
Luffing view.The second embodiment of the present invention is with first embodiment difference：
Mobile counterweight 2 is hinged by jointed shaft 9 with turntable, and mobile counterweight 2 is hinged on turntable rear, and positioned at turntable or so
The middle part in direction.As shown in figure 3, when four-link luffing drive 6 upward luffing of arm support when, connecting rod 4 drive mobile counterweight 2 around
Jointed shaft 9 is overturn forward, moves forward mobile counterweight 2.As shown in figure 4, when four-link luffing driving arm support 6 becomes downwards
During width, connecting rod 4 drives mobile counterweight 2 to be turned over around jointed shaft 9, is moved rearwards mobile counterweight 2.
The present invention is ingenious to make use of existing luffing device movement characteristic, to drive mobile counterweight 2 is front and rear to overturn, realizes and moves
Dynamic counterweight 2 is movable, realizes vehicle center of gravity and adaptively moves.When 6 upward luffing of arm support, mobile counterweight 2 can be with adaptive
It should overturn forward.When 6 downward luffing of arm support, mobile counterweight 2 can adaptively turn over.As shown in figure 4, arm support 6 is horizontal
During position, mobile counterweight 2 has been turned over 180 degree, and mobile counterweight 2 is located at rearmost end, and the aerial work platform stability that leans forward is good.
As shown in figure 3, during 6 maximum angle of arm support, mobile counterweight 2 has overturn forward 180 degree, and mobile counterweight 2 is located at front end, and high-altitude is made
Industry platform hypsokinesis stability is good.The aerial work platform whole range operation of bigger specification can be realized；Either smaller counterweight,
Realize bigger operation amplitude.Luffing device can also use the shapes such as three bar linkage structures, five bar linkage structures in addition to said structure
Formula.
Present invention also offers a kind of aerial work platform, including chassis (not shown) and above-mentioned Tape movement counterweight
Luffing device, turntable be arranged on chassis on, turntable can with respect to chassis 360 degree rotate freely.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (9)
1. a kind of luffing device of Tape movement counterweight, it is characterised in that including turntable, arm support, jib lubbing mechanism, connecting rod, in turntable
On mobile counterweight is installed, jib lubbing mechanism is connected with turntable, and arm support is connected with jib lubbing mechanism, connecting rod two end and jib lubbing mechanism
It is connected with mobile counterweight；Mobile counterweight is driven to be moved along turntable fore-and-aft direction by connecting rod when jib lubbing mechanism drives luffing range of cantilever support
Move or drive mobile counterweight to be overturn to turntable fore-and-aft direction by connecting rod.
2. the luffing device of Tape movement counterweight according to claim 1, it is characterised in that jib lubbing mechanism includes the first support
Bar, second support bar, amplitude oil cylinder；First support bar both ends are connected with arm support and turntable, second support bar both ends and arm support and
Turntable connects, and amplitude oil cylinder both ends are connected with arm support and first support bar, first support bar, second support bar, arm support, turntable,
Amplitude oil cylinder forms four-link luffing；Connecting rod two end is connected with mobile counterweight and second support bar.
3. the luffing device of Tape movement counterweight according to claim 2, it is characterised in that guide rail is provided with turntable,
Mobile counterweight is arranged on guide rail；When the jib lubbing mechanism driving upward luffing of arm support, connecting rod drives mobile counterweight along guide rail to turning
It is mobile in front of platform；When the downward luffing of jib lubbing mechanism driving arm support, connecting rod drives mobile counterweight to be moved along guide rail to turntable rear.
4. the luffing device for the Tape movement counterweight stated according to claim 3, it is characterised in that guide rail is horizontal along turntable fore-and-aft direction
It is arranged in turntable rear.
5. the luffing device of Tape movement counterweight according to claim 4, it is characterised in that guide rail and mobile counterweight are positioned at turning
The middle part of platform left and right directions.
6. the luffing device of Tape movement counterweight according to claim 2, it is characterised in that mobile counterweight by jointed shaft with
Turntable is hinged, and mobile counterweight is hinged on turntable rear, and when the upward luffing of jib lubbing mechanism driving arm support, connecting rod drives mobile counterweight
Overturn forward around jointed shaft；When the downward luffing of jib lubbing mechanism driving arm support, connecting rod drives mobile counterweight to be turned over backward around jointed shaft
Turn.
7. the luffing device of Tape movement counterweight according to claim 6, it is characterised in that mobile counterweight is located at turntable or so
The middle part in direction.
8. the luffing device of the Tape movement counterweight according to claim 1 to 7 any one, it is characterised in that in turntable tail
Portion is provided with fixed weight.
9. a kind of aerial work platform, it is characterised in that the band including chassis and as described in claim 1 to 8 any one moves
The luffing device of dynamic counterweight, turntable are arranged on chassis, turntable can with respect to chassis 360 degree rotate freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309376.0A CN107879295A (en) | 2017-12-11 | 2017-12-11 | A kind of luffing device and aerial work platform of Tape movement counterweight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309376.0A CN107879295A (en) | 2017-12-11 | 2017-12-11 | A kind of luffing device and aerial work platform of Tape movement counterweight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107879295A true CN107879295A (en) | 2018-04-06 |
Family
ID=61773417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711309376.0A Pending CN107879295A (en) | 2017-12-11 | 2017-12-11 | A kind of luffing device and aerial work platform of Tape movement counterweight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107879295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573401A (en) * | 2020-11-30 | 2021-03-30 | 长沙中联消防机械有限公司 | Adjustable amplitude-variable hinge point system, elevating fire truck or overhead working truck |
| CN114212744A (en) * | 2021-12-27 | 2022-03-22 | 山河智能装备股份有限公司 | Aerial working platform and adjustable chassis counterweight mechanism thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679336A (en) * | 1984-12-01 | 1987-07-14 | J. C. Bamford Excavators Limited | Earth moving machine |
| DD253241A1 (en) * | 1986-10-13 | 1988-01-13 | Schwermasch Dimitrof G | EQUIPMENT, IN PARTICULAR FOR CHANGING SHEET RAILS ON BUCKETS OF BUCKET BREAKERS |
| US5799806A (en) * | 1997-01-31 | 1998-09-01 | Skyjack Equipment Inc. | Lifting device with counterweight |
| CN1287966A (en) * | 1999-09-13 | 2001-03-21 | 美国格若沃责任有限公司 | Withdrawing-back balancing wt. for straight beam type high above ground platform |
| CN102259814A (en) * | 2011-05-10 | 2011-11-30 | 山东大学 | Bracing structure of high-altitude work movable arm support |
| CN103832934A (en) * | 2012-11-26 | 2014-06-04 | 徐州徐工随车起重机有限公司 | Foldable car crane |
| CN207774741U (en) * | 2017-12-11 | 2018-08-28 | 湖南星邦重工有限公司 | A kind of luffing device and aerial work platform with mobile counterweight |
-
2017
- 2017-12-11 CN CN201711309376.0A patent/CN107879295A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679336A (en) * | 1984-12-01 | 1987-07-14 | J. C. Bamford Excavators Limited | Earth moving machine |
| DD253241A1 (en) * | 1986-10-13 | 1988-01-13 | Schwermasch Dimitrof G | EQUIPMENT, IN PARTICULAR FOR CHANGING SHEET RAILS ON BUCKETS OF BUCKET BREAKERS |
| US5799806A (en) * | 1997-01-31 | 1998-09-01 | Skyjack Equipment Inc. | Lifting device with counterweight |
| CN1287966A (en) * | 1999-09-13 | 2001-03-21 | 美国格若沃责任有限公司 | Withdrawing-back balancing wt. for straight beam type high above ground platform |
| EP1084987A1 (en) * | 1999-09-13 | 2001-03-21 | Grove U.S. LLC | Retractable counterweight for straight-boom aerial work platform |
| CN102259814A (en) * | 2011-05-10 | 2011-11-30 | 山东大学 | Bracing structure of high-altitude work movable arm support |
| CN103832934A (en) * | 2012-11-26 | 2014-06-04 | 徐州徐工随车起重机有限公司 | Foldable car crane |
| CN207774741U (en) * | 2017-12-11 | 2018-08-28 | 湖南星邦重工有限公司 | A kind of luffing device and aerial work platform with mobile counterweight |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573401A (en) * | 2020-11-30 | 2021-03-30 | 长沙中联消防机械有限公司 | Adjustable amplitude-variable hinge point system, elevating fire truck or overhead working truck |
| CN114212744A (en) * | 2021-12-27 | 2022-03-22 | 山河智能装备股份有限公司 | Aerial working platform and adjustable chassis counterweight mechanism thereof |
| CN114212744B (en) * | 2021-12-27 | 2023-12-19 | 山河智能装备股份有限公司 | Aerial working platform and adjustable chassis counterweight mechanism thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107226438B (en) | Tunnel inspection operation device | |
| US8267222B2 (en) | Compact scissors lift | |
| CN107215827B (en) | Tunnel inspection operation device | |
| CN105036020A (en) | Crank-arm-type aerial work platform flexible in work range | |
| CN110759254A (en) | Crane suitable for roadway hoisting | |
| CN107879295A (en) | A kind of luffing device and aerial work platform of Tape movement counterweight | |
| CN102303821B (en) | Luffing tower crane with balanced type suspension arm based on traction luffing of steel rope | |
| CN207774741U (en) | A kind of luffing device and aerial work platform with mobile counterweight | |
| CA2702129C (en) | Compact scissors lift | |
| CN202296907U (en) | Suspension arm balanced movable arm tower crane capable of luffing based on steel rope traction | |
| CN105216882A (en) | Cab lift device | |
| CN2863755Y (en) | Levelling device for overhead working truck platform draw-in rod | |
| CN207748803U (en) | A kind of fork truck support construction | |
| CN215979426U (en) | Supporting platform capable of being extended and rotated | |
| CN202944164U (en) | Guide wheel mechanism and railway-road two-purpose car | |
| CN105036018A (en) | Crank arm type lifting device of aerial work platform | |
| CN202055169U (en) | Truss bridge detection vehicle with stepless adjustable crossing height | |
| CN105036016A (en) | Crank arm type aerial work platform with high stability | |
| CN204978910U (en) | Driver cab lifting device | |
| CN204938898U (en) | A kind of scope of work crank type aerial working platform flexibly | |
| CN204938904U (en) | A kind of rising arm assembly of high-altitude operation platform | |
| CN210029945U (en) | Variable rotary center turntable for overhead working truck | |
| CN108657057A (en) | Car transporter | |
| CN105060199A (en) | Crank arm type aerial work platform with easily-expanded height | |
| US3043443A (en) | Truck derricks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 410600, No. 128, Jinzhou East Road, Ningxiang hi tech Development Zone, Hunan, Changsha Applicant after: Hunan Xingbang Intelligent Equipment Co.,Ltd. Address before: 410600, No. 128, Jinzhou East Road, Ningxiang hi tech Development Zone, Hunan, Changsha Applicant before: HUNAN SINOBOOM HEAVY INDUSTRY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |