CN206231449U - A kind of radial type wheel-mounted crane - Google Patents
A kind of radial type wheel-mounted crane Download PDFInfo
- Publication number
- CN206231449U CN206231449U CN201621260558.4U CN201621260558U CN206231449U CN 206231449 U CN206231449 U CN 206231449U CN 201621260558 U CN201621260558 U CN 201621260558U CN 206231449 U CN206231449 U CN 206231449U
- Authority
- CN
- China
- Prior art keywords
- steering
- articulated
- front frame
- radial type
- mounted crane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a kind of radial type wheel-mounted crane, including radial type mobile chassis (1), and machine drives room (2), crane system (3)；Articulated mobile chassis (1) include front frame (4), Rear frame (5), and be articulated and connected (6), articulation steering system (7) and steering angle measurement apparatus (8)；Be articulated and connected (6) are hinged the front frame (4) with the Rear frame (5)；The articulation steering system (7) is fluid-link steering, and flexible by two steering cylinders of HYDRAULIC CONTROL SYSTEM or so realizes that the front frame (4) deflection angle is turned to；The angle of steering angle measurement apparatus (8) the measuring vehicle steering simultaneously transmits signal.Flexibly, radius of turn is small for the steering of articulated wheel-mounted crane, can complete the lift heavy operation of small space, therefore operating flexibility with flexible and traveling is carried, and operating efficiency is high.
Description
Technical field
The utility model is related to crane technical field, in particular it relates to a kind of radial type wheel-mounted crane.
Background technology
At present, runabout crane is divided into crawler crane and the class of rubber tired crane two.As shown in figure 1, crawler belt lifting
Machine is that hoisting operation is partially contained in the crane walked by crawler attachment on crawler body 29, its He of mobility operation driver's cabin 26
Hoisting operations are concentrated on gets on the bus in control cabinl pulpit 23.Crawler crane has that grounding pressure is small, radius of turn is small, lift heavy operation is not required to
But make a jack, can belt carrying running, short distance transition when the feature such as oneself walking, but can not travel on highway, it is necessary to which dismounting is transported
It is defeated, assembled again after reaching job site, waste time and energy.
Rubber tired crane is divided into autocrane, rough terrain wheeled crane, the full Terrain Cranes and lorry-mounted crane again
Four types.As shown in Fig. 2 the mobility operation of autocrane is in the driver's cabin 26 got off, hoisting operations are in the behaviour for getting on the bus
In oblongum 23,, due to utilizing automobile chassis 27, so driving through performance with automobile, maneuverability, travel speed is high for it,
Can fast transfer, can be devoted oneself to work rapidly after being transferred to Active workings, particularly suitable big with mobility, unfixed operation
Institute.Unfortunately：Vehicle body is more long, and radius of turn is big；The operation of branch supporting leg 28 is needed, the requirement to ground is higher, is typically only capable to
The left and right sides and rear operation；It is unable to on-load traveling.As shown in figure 3, the He of rough terrain wheeled crane mobility operation driver's cabin 26
Hoisting operations are concentrated on gets on the bus in control cabinl pulpit 23, and wheelspan is wider, good stability；Wheelbase is small, and vehicle body is short, and radius of turn is small, is applicable
In narrow Work places, can be travelled without supporting leg lift heavy and lift heavy on flat solid ground.Its shortcoming is traveling speed
Degree is relatively slow, and mobility is poor, and remote transition needs transporting equipment.As shown in figure 4, lorry-mounted crane is by hoisting operation part dress
A kind of crane on load truck, its both can lifting, again can loading, goods can realize Self-loading-unloading, but lifting capacity is small, raising
Highly low, operation amplitude is small, and operation needs branch supporting leg 28.The full Terrain Cranes are collection autocrane and rough terrain wheeled cranes
Advantage in the High-Performance Hoist of one.Full ground lifting mobility operation in the driver's cabin got off, getting on the bus by hoisting operations
Control cabinl pulpit in, its radius of turn is small, can the walking of crab shape, adapt to the requirement of different operating environment, and with cross-country ability
Good, travel speed is high, can be travelled without supporting leg lift heavy and lift heavy on flat solid ground.But, full ground heavy-duty machine belongs to
Large lifting equipment, expensive, domestic consumer is difficult to receive.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of radial type wheel-mounted crane, operating room and
Driver's cabin is integrated, and crane system is located at driver's cabin left side or right side (driven depending on a left side or the right side is driven), reduces vehicle
Highly, security is improved；Without supporting leg operation, load traveling capable of hoisting；In the case of short distance, a small range transferring objects, it is not required to
Want other auxiliary conveying equipments, operating efficiency is high, can high-speed mobile, steering angle is big, and radius of turn is small, and steering drag is small, can
Pivot stud；
The technical solution of the utility model is as follows：
A kind of radial type wheel-mounted crane, including radial type mobile chassis (1), machine drive room (2), crane system (3)；It is described
Radial type mobile chassis (1) include front frame (4), Rear frame (5), and be articulated and connected (6), articulation steering system (7) and steering angle
Degree measurement apparatus (8)；Be articulated and connected (6) are hinged the front frame (4) with the Rear frame (5)；The articulation steering system
System (7) controls the front frame (4) to turn to；The steering angle measurement apparatus (8) measure front frame (4) steering angle,
The computer of articulated wheel-mounted crane can read the steering angle of vehicle by electric signal.
Be articulated and connected (6) include monaural plate (9), bi-lug plate (10) and connection bearing pin or screw rod (11)；The connection
Bearing pin or screw rod (11) pivot joint the monaural plate (9) and the bi-lug plate (10), the monaural plate (9) are placed in the bi-lug plate
(10) between；The monaural plate (9) and the bi-lug plate (10) are separately mounted to the front frame (4) and the Rear frame (5)
On；The Rear frame (5) of articulated wheel-mounted crane plays a part of counterweight during hoisting operation, then the hinge
Front frame (4) described in (6) bottom is connect in succession to be only capable of using the bi-lug plate (10).
The articulation steering system (7) includes left steering oil cylinder (20), right turn oil cylinder (14), steering column (19), hydraulic pressure
Oil pump (24) and hydraulic steering gear (22)；The hydraulic steering gear (22) is connected with steering column (19)；The articulation steering system
(7) it is fluid-link steering, by the flexible reality of left steering oil cylinder (20) and the right turn oil cylinder (14) described in HYDRAULIC CONTROL SYSTEM
Existing front frame (4) deflection angle is turned to；When left-hand rotation steering wheel, hydraulic system has to left steering oil cylinder (20)
The rodless cavity fuel feeding of rod cavity and the right turn oil cylinder (14), then front frame (4) deflect realize left steering to the left；Conversely, then right
Turn to.
The steering angle measurement apparatus (8) include displacement transducer (12), angular encoder (15), shift fork (16) and turn
To bearing pin (13)；Institute's displacement sensors (12) between the front frame (4) and the Rear frame (5) or be built in turn
To oil cylinder, the angular encoder (15) in the front frame (4) and the Rear frame (5), pacify by the shift fork (16)
In the Rear frame (5), the angular encoder (15) and the shift fork (16) are pivotally connected steering bearing pin (13).
A kind of measurement of the steering angle measurement apparatus (8) is stretching by institute displacement sensors (12) according to turn inside diameter
Contracting distance is read out data and can be calculated by geometry in control computer, and length is converted into steering angle, the angle of this measurement
It is the angle of turn inside diameter；Another kind measurement is the angle turned to according to turn inside diameter, and the shift fork (16) stirs the angle
Encoder (15) rotates corresponding angle, and this angle can directly read turning for vehicle frame on corresponding computer by electric signal
It is exactly the angle of turn inside diameter to angle.
The function of institute's displacement sensors (12) and the angular encoder (15) can realize with proximity switch, wherein generation
Include the first proximity switch (211), the second proximity switch (212) and sensor (25), first proximity switch for mechanism
And second proximity switch (212) is that on (4), the sensor (25) is installed in rear car installed in the front frame (211)
On frame；The steering angle is related to crane lifting weight, and crane safety lifting weight is different because steering angle is different.
The steering angle auxiliary hoist lifting Weight-measuring device of articulated crane, the lifting weight measurement
Device includes the first proximity switch (211), the second proximity switch (212) and sensor (25), first proximity switch (211)
With second proximity switch (212) in the front frame (4), the sensor (25) is in Rear frame；Institute
State the characteristic of the steering angle auxiliary hoist lifting of articulated crane.
The crane system (3) includes basic arm (31), multistage telescopic arm (32) and double amplitude oil cylinders (33)；Double changes
Width oil cylinder (33) one end is arranged in the front frame, and the other end is fixed on the basic arm (31)；The multistage telescopic arm
(32) on the basic arm (33).
It is driver's cabin with operating room in one that the machine drives room (2), and the machine room of driving is arranged on the front frame (4)
On.
The beneficial effects of the utility model are：Articulated wheel-mounted crane uses articulated frame structure so that turn
To more flexibly, the lift heavy operation of small space can be completed.Articulated wheel-mounted crane is without supporting leg hoisting operation, can take turns
The operation of tire lift heavy and can be travelled with load, so that operating efficiency is high.Articulated wheel-mounted crane driving and operation share machine
Room is driven, the trouble of switching driving and lifting, reaches time-saving and efficiency when eliminating transition.The machine room of driving is belonging to half cab structure,
Crane system drives room left side or right side (driven depending on a left side or the right side is driven) positioned at machine, vehicle is reduced highly, so as to improve
Security.
Brief description of the drawings：
Fig. 1 is the structural representation of existing crawler crane.
Fig. 2 is the structural representation of existing autocrane.
Fig. 3 is the structural representation of existing rough terrain wheeled crane.
Fig. 4 is the structural representation of existing lorry-mounted crane.
Fig. 5 is the structural representation of radial type wheel-mounted crane described in the utility model.
Fig. 6 is the structural representation of the mode one that is articulated and connected of radial type wheel-mounted crane described in the utility model.
Fig. 7 is the structural representation of the mode two that is articulated and connected of radial type wheel-mounted crane described in the utility model.
Fig. 8 is the structural representation of the steering of radial type wheel-mounted crane described in the utility model.
Fig. 9 is the structural representation of the fluid-link steering of radial type wheel-mounted crane steering described in the utility model.
Figure 10 is the structural representation of the displacement steering angle measuring appliance of radial type wheel-mounted crane described in the utility model.
Figure 11 is the structural representation of the angle steering angle measuring appliance of radial type wheel-mounted crane described in the utility model.
Figure 12 is the structural representation of radial type wheel-mounted crane front/rear frame Shaft alignment state described in the utility model.
Figure 13 is that the angle of radial type wheel-mounted crane front/rear frame Shaft alignment state described in the utility model turns to measuring appliance
The structural representation of partial enlargement.
Figure 14 is the structural representation of radial type wheel-mounted crane front frame left steering described in the utility model.
Figure 15 is that the angle of radial type wheel-mounted crane front frame left steering described in the utility model turns to measuring appliance part
The structural representation of amplification.
Description of reference numerals
It is hinged mobile chassis 1, machine drives room 2, crane system 3, front frame 4, Rear frame 5, and be articulated and connected 6, articulation steering system
System 7, steering angle measurement apparatus 8, monaural plate 9, bi-lug plate 10 connects bearing pin or screw rod 11, and displacement transducer 12 turns to bearing pin
13, left steering oil cylinder 20, right turn oil cylinder 14, angular encoder 15, shift fork 16, tire 17, steering column 19, the first proximity switch
211, the second proximity switch 212, hydraulic steering gear 22, control cabinl pulpit 23, hydraulic oil pump 24, sensor 25, driver's cabin 26, automobile bottom
Disk 27, supporting leg 28, crawler body 29, basic arm 31, multistage telescopic arm 32, double amplitude oil cylinders 33.
Specific embodiment
In order that utility model purpose of the present utility model, technical scheme and technique effect become more apparent, tie below
Specific embodiment is closed to be described further the utility model.It should be understood that specific embodiment described herein and correlation
Accompanying drawing, is only used for explaining the utility model, is not used to limit the utility model.
Reference picture 5, a kind of radial type wheel-mounted crane, including radial type mobile chassis 1, machine drive room 2, crane system 3.Institute
Stating radial type mobile chassis 1 includes front frame 4, Rear frame 5,6, the articulation steering system 7 that is articulated and connected and steering angle measurement dress
Put 8.Articulated mobile chassis 1 are articulated and connected the front frame 4 and the Rear frame 5.The machine drives room 2 includes driver's cabin
With operating room, in front frame 4.The crane system 3 is located at the machine and drives the left side or right side of room 2 (depending on a left side
Drive or the right side is driven)；The crane system 3 is made up of basic arm 31, multistage telescopic arm 32 and double amplitude oil cylinders 33, and the multistage is stretched
Contracting arm 32 is arranged in front frame 4.
Reference picture 6, the articulated form of 6 upper and lower two semiaxis of use that are articulated and connected, including monaural plate 9, bi-lug plate 10
With connection bearing pin or screw rod 11.The monaural plate 9 is located between the ears of the bi-lug plate 10, the monaural plate 9 and described double
Otic placode 10 is connected by the connection bearing pin or screw rod 11.The Rear frame 5 of articulated wheel-mounted crane is playing recast
The effect of counterweight is served during industry, the otic placode of the low side that the front frame 4 is hinged is only capable of using the bi-lug plate 10.It is described
Be articulated and connected 6 modes one：The monaural plate 9 is arranged in the Rear frame 5, and the bi-lug plate 10 is arranged on the front frame 4
On.
Reference picture 7,6 modes two that are articulated and connected：The monaural plate 9 is hinged low side installed in the Rear frame 5, described
Bi-lug plate 10 is hinged top installed in the Rear frame 5；The bi-lug plate 10 is hinged low side installed in the front frame 4, described
Monaural plate 9 is hinged top installed in the front frame 4.
Reference picture 8 and Fig. 9, the articulation steering system 7 are hydro-steering, and steering includes hydraulic oil pump 24, liquid
Pressure steering gear 22, left steering oil cylinder 20, right turn oil cylinder 14, steering column 19.Hydraulic steering gear 22 is connected with steering column 19, works as a left side
Turn steering wheel, steering gives the rod chamber of left steering oil cylinder 20 and the rodless cavity fuel feeding of the right turn oil cylinder 14, front frame 4
Left steering is realized in deflection to the left；Conversely, then right turn.
The lifting performance of this radial type wheel-mounted crane is influenceed by the steering angle of vehicle, it is necessary to be carried out to steering angle
Measurement, is provided with steering measurement apparatus, hoisting aids operation；Two kinds of angular surveying schemes are devised herein.Reference picture 10, Yi Zhongfang
Formula is a displacement transducer 12 to be installed between front/rear frame or displacement transducer 12 is built in steering cylinder as steering angle
Degree measurement apparatus 8, read out data and pass through by the distance of stretch out and draw back of institute's displacement sensors 12 according to turn inside diameter in control computer
Geometry can be calculated, and length is converted into steering angle, and this angle is the angle of turn inside diameter.Reference picture 11, another way
It is：The steering angle measuring appliance 8 includes angular encoder 15, shift fork 16 and turns to bearing pin 13.The angular encoder 15 is pacified
On front/rear frame, the fixed part of the angular encoder 15 is arranged on the front frame 4, and shift fork 16 is installed in the rear
On vehicle frame 5, the angular encoder 15 and the shift fork 16 are pivotally connected the steering bearing pin 13, and articulated wheel-mounted crane is left
Turn certain angle, the shift fork 16 stirs the angular encoder 15 around the corresponding angle of the steering rotate counterclockwise of bearing pin 13
Degree, the steering angle that this angle can directly read vehicle frame on corresponding computer by electric signal is exactly the angle of turn inside diameter
Degree..
Reference picture 12 and Figure 13, the steering angle auxiliary hoist lifting Weight-measuring device of articulated crane,
The lifting Weight-measuring device includes the first proximity switch 211, the second proximity switch 212 and sensor 25, and described first connects
Nearly switch 211 and second proximity switch 212 are arranged in the front frame 4, and the sensor 25 is arranged in Rear frame；
The steering angle is related to crane lifting weight, and crane safety lifting weight is different because steering angle is different.Work as institute
State front frame 4 and the Rear frame 5 be in Shaft alignment state, first proximity switch 211 is in the centre of the front frame 4,
Now crane steering angle is 0, and the sensor 25 sends a signal to the control computer of crane, the lifting scale of crane
Numerical value for lifting weight maximum A；Reference picture 14 and Figure 15, it is described such as when certain angle of left steering of the front frame 4
Second proximity switch 212 is located at respective angles counterclockwise, and the sensor 25 sends a signal to the control computer of crane, rises
The numerical value of the lifting scale of heavy-duty machine is the safe lifting gravimetric value B of this angle；The numerical value A is more than the numerical value B.
Reference picture 5, the machine is driven the mobility operation of room 2 and is concentrated in a control cabinl pulpit with hoisting operations, and operator can be square
Just completion traveling and hoisting operation, this cab structure formula is partly to drive formula.
Reference picture 5, the crane system 3 is made up of basic arm 31, multistage telescopic arm 32 and double amplitude oil cylinders 33, arm system
3 ponderomotive forces of system are provided by double amplitude oil cylinder dynamical systems.
Reference picture 5 and Fig. 8, the tire 17 in articulated wheel-mounted crane is off-the-highway tire, and its traveling band two-wheeled,
The driving of four-wheel, driving through property is good.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, its framework form can be flexible and changeable, can be produced with subseries
Product.Some simple deduction or replace are simply made, the utility model should be all considered as belonging to true by the claims submitted to
Fixed scope of patent protection.
Claims (7)
1. a kind of radial type wheel-mounted crane, including radial type mobile chassis (1), machine drives room (2), crane system (3)；Its feature
It is that articulated mobile chassis (1) include front frame (4), Rear frame (5), and be articulated and connected (6), articulation steering system (7)
With steering angle measurement apparatus (8)；Be articulated and connected (6) are articulated with the front frame (4) and the Rear frame (5)；It is described
Articulation steering system (7) controls the front frame (4) to turn to；The steering angle measurement apparatus (8) measure the front frame (4)
Steering angle simultaneously transmits signal to vehicle signal control end.
2. a kind of radial type wheel-mounted crane according to claim 1, it is characterised in that be articulated and connected (6) include
Monaural plate (9), bi-lug plate (10) and connection bearing pin or screw rod (11)；The connection bearing pin or screw rod (11) connect the monaural plate
(9) and the bi-lug plate (10), the monaural plate (9) is placed between the bi-lug plate (10).
3. a kind of radial type wheel-mounted crane according to claim 1 and 2, it is characterised in that the articulation steering system
(7) including left steering oil cylinder (20), right turn oil cylinder (14), steering column (19), hydraulic oil pump (24) and hydraulic steering gear (22)；
The articulation steering system (7) is hydro-steering, by HYDRAULIC CONTROL SYSTEM left steering oil cylinder (20) and right turn oil cylinder
(14) flexible realizes that the front frame (4) deflection angle is turned to.
4. a kind of radial type wheel-mounted crane according to claim 1 and 2, it is characterised in that the steering angle measurement
Device (8) includes displacement transducer (12), angular encoder (15), shift fork (16) and turn to bearing pin (13)；The displacement sensing
Device (12) can be arranged between the front frame (4) and the Rear frame (5), or institute's displacement sensors (12) is built in wherein
In a piece steering cylinder, on front and rear, the shift fork (16) is installed in the Rear frame (5) for the angular encoder (15)
On, the steering bearing pin 13 is pivotally connected the angular encoder (15) and the shift fork (16).
5. a kind of radial type wheel-mounted crane according to claim 1, it is characterised in that articulated crane turns
To angle auxiliary hoist lifting Weight-measuring device, the lifting Weight-measuring device includes the first proximity switch (211), the
Two proximity switches (212) and sensor (25), first proximity switch (211) and second proximity switch (212) are installed
In the front frame (4), the sensor (25) is in Rear frame.
6. a kind of radial type wheel-mounted crane according to claim 1, it is characterised in that the crane system (3) includes
Basic arm (31), multistage telescopic arm (32) and double amplitude oil cylinders (33)；Described pair of amplitude oil cylinder (33) one end be arranged on it is described before
On vehicle frame, the other end is fixed on the basic arm (31)；The multistage telescopic arm (32) is on the basic arm (31).
7. a kind of radial type wheel-mounted crane according to claim 1, it is characterised in that it is to drive that the machine drives room (2)
With operating room in one, the machine room of driving is arranged in the front frame (4) for room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260558.4U CN206231449U (en) | 2016-11-21 | 2016-11-21 | A kind of radial type wheel-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260558.4U CN206231449U (en) | 2016-11-21 | 2016-11-21 | A kind of radial type wheel-mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206231449U true CN206231449U (en) | 2017-06-09 |
Family
ID=58980788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621260558.4U Expired - Fee Related CN206231449U (en) | 2016-11-21 | 2016-11-21 | A kind of radial type wheel-mounted crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206231449U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110053663A (en) * | 2019-05-27 | 2019-07-26 | 徐工集团工程机械股份有限公司科技分公司 | A kind of steering boost system and power steering method |
| CN110758580A (en) * | 2019-12-02 | 2020-02-07 | 三一汽车起重机械有限公司 | Crane with a movable crane |
| US11447374B2 (en) | 2016-09-15 | 2022-09-20 | Terex Australia Pty Ltd | Crane counterweight and suspension |
-
2016
- 2016-11-21 CN CN201621260558.4U patent/CN206231449U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11447374B2 (en) | 2016-09-15 | 2022-09-20 | Terex Australia Pty Ltd | Crane counterweight and suspension |
| CN110053663A (en) * | 2019-05-27 | 2019-07-26 | 徐工集团工程机械股份有限公司科技分公司 | A kind of steering boost system and power steering method |
| CN110758580A (en) * | 2019-12-02 | 2020-02-07 | 三一汽车起重机械有限公司 | Crane with a movable crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203006872U (en) | Self-walking scissor fork type lifting platform | |
| CN206231449U (en) | A kind of radial type wheel-mounted crane | |
| CN203006842U (en) | Self-walking scissor fork type lifting platform | |
| CN102092634A (en) | Variable wheel tread universal wheel type crane for electrical control doors | |
| CN200974747Y (en) | High-efficiency energy-saving large-scale special remote controlled balance-checking vehicle | |
| CN107651619A (en) | Template lifts Mobile workbench | |
| CN202022659U (en) | Wheel tread variable type universal wheel type electronic control door crane | |
| CN202007088U (en) | Container cross-country front-handling mobile crane | |
| CN204980004U (en) | Vehicular telescopic belt conveyer | |
| CN102935800A (en) | Self-walking scissors fork type lift platform | |
| CN102718155B (en) | A kind of electric tyre crane | |
| CN105151636A (en) | Vehicle-mounted extensible belt conveyor | |
| CN102849662A (en) | Self-traveling vertical column type lifting platform | |
| CN201713276U (en) | Telescopic handler | |
| CN202641841U (en) | Steering driving assembly of rear axle rim tire | |
| CN203529824U (en) | New energy driving tyre type gantry crane | |
| CN202766244U (en) | Self-moving vertical column type lifting platform | |
| CN202643235U (en) | Telescopic-arm forklift loader | |
| CN102849661A (en) | Self-propelled vertical column type lifting platform | |
| CN204674671U (en) | The steering hardware of platform trailer can be drawn voluntarily | |
| CN202785547U (en) | Vertical column type lifting platform capable of self walking | |
| CN207809557U (en) | A kind of Pneumatic crawler carrier | |
| CN202557641U (en) | Gooseneck elevator mechanism of low flatbed semi-trailer with detachable gooseneck | |
| CN202322094U (en) | All-pavement truss arm crane | |
| CN204095618U (en) | A kind of building site four-wheel transport vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20191121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |