CN209833819U - Multidirectional walking transport vehicle - Google Patents
Multidirectional walking transport vehicle Download PDFInfo
- Publication number
- CN209833819U CN209833819U CN201822098157.9U CN201822098157U CN209833819U CN 209833819 U CN209833819 U CN 209833819U CN 201822098157 U CN201822098157 U CN 201822098157U CN 209833819 U CN209833819 U CN 209833819U
- Authority
- CN
- China
- Prior art keywords
- transverse
- longitudinal
- wheel
- frame
- driving wheel
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims 1
- 230000009471 action Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Handcart (AREA)
Abstract
The utility model relates to a multidirectional walking transport cart, which comprises a frame, a transverse walking mechanism and a longitudinal walking mechanism, wherein the transverse walking mechanism is arranged on a first beam and a second beam of the frame, the transverse walking mechanism comprises a transverse driving wheel set, a transverse driven wheel set and a hydraulic push rod, the transverse driving wheel set is movably arranged on the first beam, the transverse driven wheel set is movably arranged on the second beam, and the hydraulic push rod is connected between the transverse driving wheel set and the second beam and between the transverse driven wheel set and the first beam; vertical running gear fixed mounting is on frame width direction's frame, the utility model discloses simple structure does not receive the restriction in place space, can remove in less space, turn to and turn around, and convenient operation work efficiency is high.
Description
Technical Field
The utility model relates to a transport means technical field, concretely relates to transport vechicle that can diversely walk.
Background
In recent years, with the flowing and aging of rural population, the rural labor population is sharply reduced, the traditional manpower-intensive agriculture mode is not sustainable, and national agriculture is continuously developed towards mechanization. At present, most of flat plate transport vehicles used in the field run in a straight line, a set of steering mechanism is designed on two front wheels, and the turning action of the flat plate transport vehicles can be realized by matching with the steering mechanism. However, in actual production, the straight-line running transport vehicle has high requirements on farmland infrastructure, and when the transport vehicle is used for field operations such as small area, irregularity, corner plastering, square farmland and the like, the operations such as turning, backing and the like can be very frequent, and due to the limitation of practical space, the problems of inconvenient access, difficult turning and the like of the transport vehicle can be caused, so that the operation efficiency of the vehicle can be greatly influenced. How to solve the problem of free walking of the flat-plate transport vehicle in a narrow space is a problem in front of designers.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a diversified transport vechicle of walking to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a multi-azimuth walking transport vehicle comprises a vehicle frame, a transverse walking mechanism and a longitudinal walking mechanism, wherein the vehicle frame body is of a rectangular frame structure, and a first cross beam and a second cross beam are arranged in parallel in the length direction of the vehicle frame body; the transverse traveling mechanism is arranged on a first cross beam and a second cross beam of the frame and comprises a transverse driving wheel set, a transverse driven wheel set and a hydraulic push rod, a transverse traveling motor is arranged on the transverse driving wheel set and movably mounted on the first cross beam, a transverse wheel steering mechanism is arranged on the transverse driven wheel set and movably mounted on the second cross beam, and the hydraulic push rod is connected between the transverse driving wheel set and the second cross beam and between the transverse driven wheel set and the first cross beam; the longitudinal walking mechanism is fixedly installed on the frame in the width direction of the frame and comprises a longitudinal driving wheel set provided with a longitudinal walking motor and a longitudinal driven wheel set provided with a longitudinal steering mechanism, and the longitudinal driving wheel set and the longitudinal driven wheel set are arranged on two sides of the frame in the width direction of the frame.
Preferably, the transverse driving wheel set comprises transverse driving wheels arranged at two ends of a transverse driving wheel shaft, two transverse driving wheel supports connected with the transverse driving wheel shaft and movably connected with the first cross beam, and a transverse traveling motor fixed on the first cross beam and connected with the transverse driving wheel shaft through a chain wheel.
Preferably, the horizontal driven wheelset includes the horizontal from driving wheel support with second crossbeam swing joint, the both ends of horizontal from driving wheel support are provided with horizontal from driving wheel, two horizontal from driving wheel endotheca fixed mounting have horizontal wheel steering knuckle arm, two be connected with horizontal wheel steering pull rod between the horizontal wheel steering knuckle arm, at one of them still be equipped with horizontal wheel steering mechanism on the horizontal wheel steering knuckle arm, horizontal wheel steering mechanism one end is fixed the other end is fixed at horizontal from driving wheel support on the horizontal wheel steering knuckle arm.
Preferably, the longitudinal driving wheel set comprises two longitudinal driving wheels fixedly connected to two sides of the width of the frame, the two longitudinal driving wheels are connected with a transmission shaft of the longitudinal driving wheel through a chain wheel, the transmission shaft of the longitudinal driving wheel is fixed on the frame, and the transmission shaft of the longitudinal driving wheel is in transmission connection with the longitudinal walking motor through the chain wheel.
Preferably, the longitudinal driven wheel group comprises two longitudinal driven wheels fixedly connected to two sides of the width of the frame, a longitudinal wheel transmission rod is connected between the two longitudinal driven wheels, the longitudinal wheel transmission rod is movably connected to longitudinal wheel steering knuckle arms on the inner sides of the two longitudinal driving wheels, and a longitudinal wheel steering mechanism is further arranged on one longitudinal driving wheel.
Preferably, the transverse traveling mechanism and the longitudinal traveling mechanism have the same wheel diameter of the traveling wheel, and the transverse traveling mechanism traveling wheel and the longitudinal traveling mechanism traveling wheel have a height difference in a traveling state.
Because above-mentioned technical scheme application, compare with prior art, the beneficial effects of the utility model are that:
the utility model is provided with a transverse walking mechanism and a longitudinal walking mechanism, and can realize the functions of longitudinal and transverse walking by the alternate running of the two walking mechanisms; the transverse traveling mechanism and the longitudinal traveling mechanism are also provided with steering mechanisms, and the steering mechanisms can realize directions except for the transverse direction and the longitudinal direction, so that the aim of omnibearing traveling is fulfilled. The utility model discloses simple structure does not receive the restriction in place space, can remove in less space, turn to and turn around, and convenient operation work efficiency is high.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the transverse traveling mechanism of the present invention;
FIG. 3 is a schematic view of the longitudinal traveling mechanism of the present invention;
fig. 4 is a sectional view of the utility model a-a.
Wherein, 1, the frame; 11. a first cross member; 12. a second cross member; 2. a transverse traveling mechanism; 21. a transverse driving wheel set; 211. a transverse driving wheel; 212. a transverse driving wheel shaft; 213. a transverse driving wheel support; 214. a transverse traveling motor; 22. a transverse driven wheel set; 221. a transverse driven wheel bracket; 222. a transverse driven wheel; a transverse wheel knuckle arm; 224. a transverse wheel steering linkage; 225. a transverse-wheel steering mechanism; 23. a hydraulic push rod; 3. a longitudinal running mechanism; 31. a longitudinal driving wheel set; 311. a longitudinal traveling motor; 312. a longitudinal driving wheel; 313. a longitudinal driving wheel transmission shaft; 32. a longitudinal driven wheel set; 321. a longitudinally driven wheel; 322. a longitudinal wheel steering knuckle arm; 323. a longitudinal wheel steering mechanism; 324. a longitudinal wheel transmission rod.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings:
as shown in fig. 1-4, the utility model provides a technical solution: a multi-azimuth traveling transport vehicle comprises a vehicle frame 1, a transverse traveling mechanism 2 and a longitudinal traveling mechanism 3, wherein the main body of the vehicle frame 1 is of a rectangular frame structure, and the main body of the vehicle frame 1 can be formed by welding hollow steel pipes or L-shaped steel; a first cross beam 11 and a second cross beam 12 are welded on a frame in the length direction of the frame 1 in parallel at intervals, and the materials of the first cross beam 11 and the second cross beam 12 are the same as those of the frame 1. The transverse traveling mechanism 2 is arranged on a first cross beam 11 and a second cross beam 12 of the frame 1, the transverse traveling mechanism 2 mainly comprises a transverse driving wheel set 21, a transverse driven wheel set 22 and a hydraulic push rod 23, the transverse driving wheel set 21 is hinged to the first cross beam 11, the transverse driving wheel set 21 mainly comprises a transverse driving wheel 211, a transverse driving wheel shaft 212, a transverse driving wheel support 213 and a transverse traveling motor 214, the transverse driving wheel 211 is arranged at two ends of the transverse driving wheel shaft 212, the transverse driving wheel shaft 212 is fixedly provided with the two transverse driving wheel supports 213, the two transverse driving wheel supports 213 are hinged to the first cross beam 11, and the transverse traveling motor 214 is fixed to the first cross beam 11 and is connected with the transverse driving wheel shaft 212 through a chain wheel; the transverse traveling motor 214 drives the transverse driving wheel shaft 212 to rotate through sprocket transmission, and finally drives the transverse driving wheels 211 at two ends of the transverse driving wheel shaft 212 to rotate, so that the transverse traveling motor can move in the transverse direction; the transverse driven wheel set 22 is hinged on the second cross beam 12, the transverse driven wheel set 22 mainly comprises a transverse driven wheel bracket 221, a transverse driven wheel 222, a transverse wheel steering knuckle arm 223, a transverse wheel steering pull rod 224 and a transverse wheel steering mechanism 225, the transverse driven wheel bracket 221 is hinged on the second cross beam 12, the transverse driven wheels 222 are arranged at two ends of the transverse driven wheel bracket 221, the transverse wheel steering knuckle arm 223 is fixedly installed on the inner side of the transverse driven wheel 222, the transverse wheel steering pull rod 224 is connected between the two transverse wheel steering knuckle arms 223 through a connecting pin, and the transverse wheel steering pull rod 224 can enable the transverse driven wheels 222 at two ends of the transverse driven wheel bracket 221 to have synchronous action; a transverse wheel steering mechanism 225 is further arranged on one transverse wheel steering knuckle arm 223, and the transverse wheel steering mechanism 225 adopts an electric hydraulic push rod with the stroke of 15 cm; the push rod end of the transverse wheel steering mechanism 225 is connected to the transverse wheel steering knuckle arm 223 through a connecting pin, the other end of the transverse wheel steering mechanism 225 is fixed on the transverse driven wheel bracket 221, and the transverse wheel steering mechanism 225 can enable the transverse driven wheel set 22 to perform a further steering function in the transverse driving direction; electric hydraulic push rods 23 with the stroke of 40cm are arranged between the transverse driving wheel set 21 and the second cross beam 12 and between the transverse driven wheel set 22 and the first cross beam 11, cylinder bodies of the hydraulic push rods 23 are respectively fixed on the first cross beam 11 and the second cross beam 12 close to the middle section, push rods of the hydraulic push rods 23 are respectively arranged at the corresponding position of a transverse driven wheel bracket 221 of the transverse driven wheel set 22 and the corresponding position of a transverse driving wheel shaft 212 of the transverse driving wheel set 21, and the hydraulic push rods 23 can control the retraction and release states of the transverse driving wheel set 21 and the transverse driven wheel set 22.
As shown in fig. 3, the longitudinal traveling mechanism 3 is fixedly installed on the frame of the frame 1 in the width direction, and includes a longitudinal driving wheel set 31 and a longitudinal driven wheel set 32, the longitudinal driving wheel set 31 and the longitudinal driven wheel set 32 are disposed on two sides of the frame 1 in the width direction; the longitudinal driving wheel set 31 comprises two longitudinal driving wheels 312 fixedly connected to two sides of the width of the frame 1, the two longitudinal driving wheels 312 are connected with a longitudinal driving wheel transmission shaft 313 through a chain wheel, the longitudinal driving wheel transmission shaft 313 is fixed on the frame 1, and the longitudinal driving wheel transmission shaft 313 is in transmission connection with a longitudinal walking motor 311 through a chain wheel; the longitudinal walking motor 311 drives the longitudinal driving wheel transmission shaft 313 to rotate through a chain wheel, and the longitudinal driving wheel transmission shaft 313 finally drives the longitudinal driving wheels 312 at two sides of the frame 1 to rotate through the chain wheel, so that the operation in the longitudinal direction is realized; the longitudinal driven wheel group 32 comprises two longitudinal driven wheels 321 fixedly connected to two sides of the width of the frame 1, a longitudinal wheel driving rod 324 is connected between the two longitudinal driven wheels 321, the longitudinal wheel driving rod 324 is movably connected to a longitudinal wheel steering knuckle arm 322 at the inner side of the two longitudinal driving wheels 312, and one longitudinal driving wheel 312 is further provided with a longitudinal wheel steering mechanism 323.
In the embodiment, the multi-azimuth walking transport vehicle adopts the rechargeable storage battery to provide power sources for the transverse walking motor 214 and the longitudinal walking motor 311; if the braking effect of the transport vehicle is to be realized, braking devices can be arranged on the transverse travelling mechanism 2 and the longitudinal travelling mechanism 3, and the braking devices generally adopt a mode that a disc brake is matched with a disc brake disc; and circuit control systems in the multi-azimuth walking transport vehicle are connected with the controller.
The utility model discloses a work flow is: when the transport vehicle needs to turn and adopts longitudinal running, under the operation of an operator, the controller sends an instruction to enable the push rod of the hydraulic push rod 23 to retract, the transverse driving wheel set 21 and the transverse driven wheel set 22 connected to one end of the push rod of the hydraulic push rod 23 start to lift upwards around the first cross beam 11 and the second cross beam 12 respectively, in the process of lifting upwards, the running wheels of the longitudinal running mechanism 3 are gradually contacted with the ground, when the push rod of the hydraulic push rod 23 retracts to a specified stroke, the running wheels on the transverse running mechanism 2 are completely lifted, the running wheels on the longitudinal running mechanism 3 are completely contacted with the ground, the height difference is formed between the running wheels of the transverse running mechanism 2 and the running wheels of the longitudinal running mechanism 3, and at the moment, the transport vehicle can run in the longitudinal reciprocating direction. On the contrary, when the transport vehicle needs to run transversely, the operator extends the push rod of the hydraulic push rod 23 through the controller, the running wheels on the transverse running mechanism 2 gradually contact with the ground, the running wheels on the longitudinal running mechanism 3 gradually separate from the ground, and finally, the height difference is formed between the running wheels of the transverse running mechanism 2 and the running wheels of the longitudinal running mechanism 3, so that the transport vehicle runs transversely. During lateral and longitudinal travel, further steering action may be provided by the lateral wheel steering mechanism 225 and the longitudinal wheel steering mechanism 323. The transport vehicle runs alternately through the two running mechanisms, realizes the functions of longitudinal running and transverse running (namely steering and turning around), is not limited by the space of a field in the using process, and is convenient to operate and high in transport efficiency.
The utility model discloses not only can be used for the agricultural place among this background art, still be applicable to the place that needs transportation such as sanitation, industry, goods yard, be particularly useful for the space narrow and small, be unfavorable for the work place that turns around or turn around.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides a diversified walking transport vechicle, includes frame (1), horizontal running gear (2), vertical running gear (3), its characterized in that:
the bicycle frame comprises a bicycle frame (1), wherein the main body of the bicycle frame (1) is of a rectangular frame structure, and a first cross beam (11) and a second cross beam (12) are arranged in parallel in the length direction of the bicycle frame;
the transverse traveling mechanism (2) is arranged on the first cross beam (11) and the second cross beam (12), the transverse traveling mechanism (2) comprises a transverse driving wheel set (21), a transverse driven wheel set (22) and a hydraulic push rod (23), a transverse traveling motor (214) is arranged on the transverse driving wheel set (21) and is movably mounted on the first cross beam (11), a transverse wheel steering mechanism (225) is arranged on the transverse driven wheel set (22) and is movably mounted on the second cross beam (12), and the hydraulic push rod (23) is connected between the transverse driving wheel set (21) and the second cross beam (12) and between the transverse driven wheel set (22) and the first cross beam (11);
longitudinal walking mechanism (3), longitudinal walking mechanism (3) fixed mounting is on frame (1) width direction's frame, and it is including longitudinal driving wheel group (31) that is equipped with longitudinal walking motor (311), longitudinal driven wheel group (32) that are equipped with longitudinal steering mechanism, longitudinal driving wheel group (31) and longitudinal driven wheel group (32) set up frame (1) is along the both sides of width traffic direction frame.
2. The multi-azimuth mobile carrier of claim 1, wherein: the transverse driving wheel set (21) comprises transverse driving wheels (211) arranged at two ends of a transverse driving wheel shaft (212), two transverse driving wheel brackets (213) connected with the transverse driving wheel shaft (212) and movably connected with the first cross beam (11), and a transverse walking motor (214) fixed on the first cross beam (11) and connected with the transverse driving wheel shaft (212) through a chain wheel.
3. The multi-azimuth mobile carrier of claim 1, wherein: horizontal driven wheelset (22) include with second crossbeam (12) swing joint's horizontal driven wheel support (221), the both ends of horizontal driven wheel support (221) are provided with horizontal driven wheel (222), two horizontal driven wheel (222) internal measurement fixed mounting has horizontal wheel knuckle arm (223), two be connected with horizontal wheel steering pull rod (224) between horizontal wheel knuckle arm (223), at one of them still be equipped with horizontal wheel steering mechanism (225) on horizontal wheel knuckle arm (223), horizontal wheel steering mechanism (225) one end is fixed the other end is fixed at horizontal driven wheel support (221) on horizontal wheel knuckle arm (223).
4. The multi-azimuth mobile carrier of claim 1, wherein: the longitudinal driving wheel set (31) comprises two longitudinal driving wheels (312) fixedly connected to two sides of the width of the frame (1), the two longitudinal driving wheels (312) are connected with longitudinal driving wheel transmission shafts (313) fixed on the frame (1) through chain wheels, and the longitudinal driving wheels (312) are in transmission connection with a longitudinal walking motor (311) through the chain wheels.
5. The multi-azimuth mobile carrier of claim 1, wherein: the longitudinal driven wheel set (32) comprises two longitudinal driven wheels (321) fixedly connected to two sides of the width of the frame (1), a longitudinal wheel transmission rod (324) is connected between the two longitudinal driven wheels (321), the longitudinal wheel transmission rod (324) is movably connected to longitudinal wheel steering knuckle arms (322) on the inner sides of the two longitudinal driving wheels (312), and a longitudinal wheel steering mechanism (323) is further arranged on one longitudinal driving wheel (312).
6. The multi-azimuth mobile carrier of claim 1, wherein: the wheel diameters of the transverse traveling mechanism (2) and the longitudinal traveling mechanism (3) are the same, and the traveling wheels of the transverse traveling mechanism (2) and the traveling wheels of the longitudinal traveling mechanism (3) have height difference in a traveling state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822098157.9U CN209833819U (en) | 2018-12-14 | 2018-12-14 | Multidirectional walking transport vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822098157.9U CN209833819U (en) | 2018-12-14 | 2018-12-14 | Multidirectional walking transport vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209833819U true CN209833819U (en) | 2019-12-24 |
Family
ID=68896481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201822098157.9U Expired - Fee Related CN209833819U (en) | 2018-12-14 | 2018-12-14 | Multidirectional walking transport vehicle |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209833819U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111535113A (en) * | 2020-04-30 | 2020-08-14 | 北京天仁科技发展有限公司 | Traveling mechanism of grassland filament planting machine and working method |
CN113796223A (en) * | 2021-09-24 | 2021-12-17 | 山东沃华农业科技股份有限公司 | Two-dimensional walking conversion device for leaf cutting machine |
CN114673867A (en) * | 2022-03-21 | 2022-06-28 | 张旭升 | Positioning instrument for mounting electromechanical equipment |
WO2024114028A1 (en) * | 2022-12-03 | 2024-06-06 | 中国长江电力股份有限公司 | Heavy oil cylinder hoisting and turning-over tool and method |
-
2018
- 2018-12-14 CN CN201822098157.9U patent/CN209833819U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111535113A (en) * | 2020-04-30 | 2020-08-14 | 北京天仁科技发展有限公司 | Traveling mechanism of grassland filament planting machine and working method |
CN111535113B (en) * | 2020-04-30 | 2022-01-04 | 北京天仁科技发展有限公司 | Traveling mechanism of grassland filament planting machine and working method |
CN113796223A (en) * | 2021-09-24 | 2021-12-17 | 山东沃华农业科技股份有限公司 | Two-dimensional walking conversion device for leaf cutting machine |
CN114673867A (en) * | 2022-03-21 | 2022-06-28 | 张旭升 | Positioning instrument for mounting electromechanical equipment |
WO2024114028A1 (en) * | 2022-12-03 | 2024-06-06 | 中国长江电力股份有限公司 | Heavy oil cylinder hoisting and turning-over tool and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN209833819U (en) | Multidirectional walking transport vehicle | |
CN201943403U (en) | Vertical clamping tire type automobile carrier for three-dimensional garage | |
CN202242834U (en) | Highway and railway dual-purpose ballast supplementing vehicle | |
CN206692269U (en) | A kind of four-way walking carrier | |
CN204417049U (en) | The low manual hydraulic tray car that hoists | |
CN104261314B (en) | A kind of station formula of driving pulls out yoke car | |
CN206203297U (en) | Cubic metre of earth and stone transmitting device | |
CN109911055A (en) | Unmanned barrier-exceeding vehicle | |
CN201713276U (en) | Telescopic handler | |
CN203531454U (en) | Double-layer stereo parking garbage | |
CN202806918U (en) | Synchronously steered hydraulic heavy over-limit transportation trailer | |
CN201650114U (en) | Wheel rotary drilling machine | |
CN112208636A (en) | Multi-axle trailer capable of steering independently | |
CN112298399A (en) | Self-propelled semitrailer and vehicle | |
CN201567828U (en) | Lifting device for wheels of transport robot of intelligent stereo garage | |
CN203876863U (en) | Power shopping cart | |
CN105539133A (en) | Self-propelled hydraulic power traction vehicle | |
CN103010019B (en) | Bow-type tractor | |
CN203637500U (en) | Special chassis with ground clearance changeable | |
CN215948323U (en) | Wheel belt mixed walking device for excavator | |
CN114454801B (en) | Rail and highway-based dual-purpose wrecker device and use method | |
CN201882138U (en) | Steering control device of tractor | |
CN204549958U (en) | Single-column auto hoist mobile device | |
CN204919323U (en) | General underbridge inspection trolley running gear | |
CN102476653A (en) | Multifunctional agricultural 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 | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |