CN106744519A - The energy-conservation fork truck that a kind of center of gravity can be adjusted - Google Patents
The energy-conservation fork truck that a kind of center of gravity can be adjusted Download PDFInfo
- Publication number
- CN106744519A CN106744519A CN201611212188.1A CN201611212188A CN106744519A CN 106744519 A CN106744519 A CN 106744519A CN 201611212188 A CN201611212188 A CN 201611212188A CN 106744519 A CN106744519 A CN 106744519A
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- CN
- China
- Prior art keywords
- fork truck
- fork
- pallet fork
- wheel group
- connection
- 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.)
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- 230000005484 gravity Effects 0.000 title claims abstract description 31
- 238000004134 energy conservation Methods 0.000 title claims abstract description 21
- 239000012530 fluid Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 239000010959 steel Substances 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07554—Counterweights
-
- 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/205—Arrangements for transmitting pneumatic, hydraulic or electric power to movable parts or devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses the energy-conservation fork truck that a kind of center of gravity can be adjusted,Including fork truck body,The fork truck body includes vehicle body,Wheel,Equipment,Drive device and control device,The control device connects equipment and drive device,The drive device connects wheel,The wheel connects vehicle body,The wheel includes the first wheel group and the second wheel group,The first wheel group is provided with hydraulic means,The hydraulic means can control being raised and lowered for the first wheel group,Make the first wheel group or the second wheel group that traveling is contacted with road surface,The equipment includes pallet fork and lowering or hoisting gear,The vehicle body connects lowering or hoisting gear,The lowering or hoisting gear connects pallet fork,The pallet fork is provided with retractor device,The retractor device can control the collapsing length of pallet fork,The vehicle body is provided with balancing weight,The balancing weight is provided with cavity,The cavity can place mass,Change the weight of fork truck body,Simple structure of the present invention,It is convenient and practical,Fork truck can be improved and use scope and driver safety.
Description
Technical field
The present invention relates to a kind of industrial circle, more particularly to the energy-conservation fork truck that a kind of center of gravity can be adjusted.
Background technology
Fork truck is a kind of industrial transportation vehicle, refer to member pallet cargo is loaded and unloaded, stacking and short distance transport make
The various wheeled carrying vehicle of industry.Industrial transportation vehicle be widely used in harbour, station, airport, goods yard, factory floor, warehouse,
Transfer center and home-delivery center etc., and handling, the transport operation that pallet cargo is carried out in cabin, compartment and container can be entered.
Fork truck is the essential equipment of palletized transport, Container Transport.Travel speed when existing fork truck is due to zero load cannot be carried
Rise, cause fork truck easily to influence efficiency, and existing fork truck to be difficult to look for when center of gravity off normal goods is loaded and unloaded when long range is travelled
The position of centre of gravity of quasi-goods causes fork truck to load and unload repeatedly, influences the mood of truck driver, or even influences to drive when center of gravity is inclined
The life of the person of sailing.
The content of the invention
It is an object of the invention to the problem above for overcoming prior art to exist, there is provided the energy-conservation that a kind of center of gravity can be adjusted
Fork truck.The novel in structural design, uniqueness, can not only improve the travel speed of fork truck in zero load, can also adjust fork truck
Balancing weight is meeting the demand of various goods.
To realize above-mentioned technical purpose, above-mentioned technique effect is reached, the present invention is achieved through the following technical solutions：One kind weight
The energy-conservation fork truck that the heart can be adjusted, including fork truck body, the fork truck body include vehicle body, wheel, equipment, drive device
And control device, control device connection equipment and the drive device, the drive device connection wheel, the wheel company
Body is picked up, the wheel includes the first wheel group and the second wheel group, and the first wheel group is provided with hydraulic means, the liquid
Pressure device can control being raised and lowered for the first wheel group, make the first wheel group or the second wheel group that traveling is contacted with road surface,
The equipment includes pallet fork and lowering or hoisting gear, and the vehicle body connects lowering or hoisting gear, and the lowering or hoisting gear connects pallet fork, described
Pallet fork is provided with retractor device, and the retractor device can control the collapsing length of pallet fork, the vehicle body to be provided with balancing weight, institute
State balancing weight and be provided with cavity, the cavity can place mass, change the weight of fork truck body.
Further, the pallet fork includes fixed pallet fork and mobile pallet fork, and the lowering or hoisting gear is connected pallet fork, described
The fixed mobile pallet fork of pallet fork connection, the mobile pallet fork connection retractor device, drives the retractor device, the retractor device band
Dynamic mobile pallet fork, moves the guide rail moved set by the fixed pallet fork in pallet fork edge.
Further, the lowering or hoisting gear includes goods shelf, door frame and fluid pressure drive device, and the vehicle body connects door
Frame, the door frame is connected with fluid pressure drive device and goods shelf, and the goods shelf connects pallet fork.
Further, the fluid pressure drive device includes hydraulic pump and hydraulic cylinder, and the control device connects hydraulic pump, institute
State hydraulic pump to be connected with hydraulic means, retractor device and hydraulic cylinder, the hydraulic cylinder is connected with goods shelf.
Further, the hydraulic means and retractor device include hydraulic cylinder or oil hydraulic cylinder, the hydraulic cylinder or oil hydraulic cylinder
Connection hydraulic pump.
Further, the control device includes driving switch, hydraulic control switch, deflecting roller and pedal, the driving
Switch connection drive device, the hydraulic control switch connects hydraulic pump, and the deflecting roller connects wheel, and the pedal connects liquid
Pressure device.
Further, the drive device includes engine or motor.
Further, the mass includes liquid and metal.
Further, the tire of the first wheel group includes pneumatic tire, and the tire of the second wheel group is included in fact
Heart tire.
Further, the first wheel group is provided with leaf spring, and the leaf spring connects hydraulic means；The steel
Flat spring includes spill leaf spring, and the spill leaf spring can be cut under the control of hydraulic means by spill leaf spring
Change convex leaf spring into.
Further, when the leaf spring is spill leaf spring, the first wheel group is contacted with road surface, and described the
Two wheel groups are hanging.
Further, when the leaf spring is convex leaf spring, the first wheel group is hanging, second wheel
Group is contacted with the inside.
Further, the F-Zero of the first wheel group is 2 to 3 times of the second wheel group.
Further, the F-Zero of the second wheel group is 20KM/H.
Further, when the first wheel group switches with the second wheel group, the fork truck body is arrested state.
Further, the displacement of the mobile pallet fork is no more than the 3/4 of fixed pallet fork length.
Further, the mobile pallet fork can be arranged on one or more.
Further, the vehicle body is provided with mobile device, and the balancing weight connects mobile device, and the mobile device connects
Connect hydraulic pump.
Further, the mobile device includes guide rail and hydraulic cylinder, and the vehicle body connects guide rail, and the guide rail connection is matched somebody with somebody
Pouring weight, the balancing weight is connected with hydraulic cylinder, and the hydraulic cylinder connects hydraulic pump.
Further, the balancing weight may be configured as multiple balancing weights, and the multiple balancing weight can adjust vehicle body different
The center of gravity of position.
Further, the balancing weight is provided with safety lock.
Further, the guide rail is provided with limited block, and the limited block connects vehicle body.
The beneficial effects of the invention are as follows：（1）Travel speed during fork truck zero load is improved, contributes to fork truck to travel over long distances,
Avoid wasting the energy.（2）Fork truck of the invention can make fork truck according to the weight and center of gravity of the centre of gravity adjustment fork-lift truck counterweight block of goods
Disclosure satisfy that various requirements.（3）Improve the volume of fork truck handling goods.
Described above is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention,
And can be practiced according to the content of specification, with presently preferred embodiments of the present invention and coordinate accompanying drawing to describe in detail below.This hair
Bright specific embodiment is shown in detail by following examples and its accompanying drawing.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the overall structure diagram of the energy-conservation fork truck that a kind of center of gravity of the present invention can be adjusted；
Fig. 2 is the first wheel group group schematic diagram of the energy-conservation fork truck that a kind of center of gravity of the present invention can be adjusted；
Fig. 3 is the front view of the energy-conservation fork truck that a kind of center of gravity of the present invention can be adjusted；
Fig. 4 is the pallet fork profile of the energy-conservation fork truck that a kind of center of gravity of the present invention can be adjusted.
Label declaration in figure：1st, fork truck body, 2, vehicle body, 3, wheel, the 301, first wheel group, the 302, second wheel group,
4th, hydraulic means, 5, pallet fork, 501, fixed pallet fork, 502, mobile pallet fork, 6, retractor device, 7, balancing weight, 8, cavity, 9, pallet fork
Frame, 10, door frame, 11, deflecting roller, 12, pedal, 13, leaf spring.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
Shown in 1~Fig. 4 of reference picture, a kind of energy-conservation fork truck that center of gravity can be adjusted, including fork truck body 1, the fork truck body 1 is wrapped
Vehicle body 2, wheel 3, equipment, drive device and control device are included, the control device connects equipment and drive device,
The drive device connects wheel 3, and the connection vehicle body 2 of the wheel 3, the wheel 3 includes the first wheel group 301 and the second wheel
Group 302, the first wheel group 302 is provided with hydraulic means 4, and the hydraulic means 4 can control the liter of the first wheel group 301
High or reduction, makes the first wheel group 301 or the second wheel group 302 that traveling is contacted with road surface, and the equipment includes the He of pallet fork 5
Lowering or hoisting gear, the connection lowering or hoisting gear of the vehicle body 2, the lowering or hoisting gear connects pallet fork 5, and the pallet fork 5 is provided with retractor device
6, the retractor device 6 can control the collapsing length of pallet fork 5, the vehicle body 2 to be provided with balancing weight 7, and the balancing weight is set
There is cavity 8, the cavity 8 can place mass, change the weight of fork truck body 1.
Further, the pallet fork 5 includes fixed pallet fork 501 and mobile pallet fork 502, and the lowering or hoisting gear is connected goods
Fork 501, the mobile pallet fork 502 of the fixed pallet fork 501 connection, the mobile pallet fork 502 connects retractor device 6, drive described in stretch
Compression apparatus 6, the retractor device 6 drives mobile pallet fork 502, makes to move pallet fork 502 along the guide rail fortune set by fixed pallet fork 501
It is dynamic.
Further, the lowering or hoisting gear includes goods shelf 9, door frame 10 and fluid pressure drive device, and the vehicle body 2 is connected
Door frame 9, the door frame 10 is connected with fluid pressure drive device and goods shelf 9, the connection pallet fork 5 of the goods shelf 9.
Further, the fluid pressure drive device includes hydraulic pump and hydraulic cylinder, and the control device connects hydraulic pump, institute
State hydraulic pump to be connected with hydraulic means 4, retractor device 6 and hydraulic cylinder, the hydraulic cylinder is connected with goods shelf 9.
Further, the hydraulic means 4 and retractor device 6 include hydraulic cylinder or oil hydraulic cylinder, the hydraulic cylinder or oil pressure
Cylinder connects hydraulic pump.
Further, the control device includes driving switch, hydraulic control switch, deflecting roller 11 and pedal 12, described
Driving switch connects drive device, and the hydraulic control switch connects hydraulic pump, and the connection wheel 3 of the deflecting roller 11 is described to step on
Plate 12 connects hydraulic means 4.
Further, the drive device includes engine or motor.
Further, the mass includes liquid and metal.
Further, the tire of the first wheel group 301 includes pneumatic tire, the tire of the second wheel group 302
Including solid tyre.
Further, the first wheel group 301 is provided with leaf spring 13, the connection hydraulic means of the leaf spring 13
4；The leaf spring 13 includes spill leaf spring, and the spill leaf spring can be under the control of hydraulic means 4 by recessed
Shape leaf spring switches to convex leaf spring.
Further, when the leaf spring 13 is spill leaf spring, the first wheel group 301 is contacted with road surface,
The second wheel group 302 is hanging.
Further, when the leaf spring 13 is convex leaf spring, the first wheel group 301 is hanging, and described the
Two wheel groups 302 are contacted with the inside.
Further, the F-Zero of the first wheel group 301 is 2 to 3 times of the second wheel group 302.
Further, the F-Zero of the second wheel group 302 is 20KM/H.
Further, when the first wheel group 301 and the second wheel group 302 switch, the fork truck body 1 is stop shape
State.
Further, the displacement of the mobile pallet fork 502 is no more than the 3/4 of the fixed length of pallet fork 501.
Further, the mobile pallet fork 502 can be arranged on one or more.
Further, the vehicle body 2 is provided with mobile device, the connection mobile device of the balancing weight 7, the mobile device
Connection hydraulic pump.
Further, the mobile device includes guide rail and hydraulic cylinder, the connection guide rail of the vehicle body 2, the guide rail connection
Balancing weight 7, the balancing weight 7 is connected with hydraulic cylinder, and the hydraulic cylinder connects hydraulic pump.
Further, the balancing weight 7 may be configured as multiple balancing weights, and the multiple balancing weight can adjust vehicle body not
With the center of gravity of position.
Further, the balancing weight 7 is provided with safety lock.
Further, the guide rail is provided with limited block, and the limited block connects vehicle body 2.
Specific embodiment：
User, when the unloaded needs of fork truck are travelled over long distances, can be used the first wheel group to improve fork truck when using the present invention
Travel speed, user by foot pedal control the first wheel group above hydraulic means make the first wheel group reduction and and ground
Contact, makes somebody a mere figurehead the second wheel group group, the travel speed of fork truck is improved using the first wheel group group, when user needs handling goods
When, by foot pedal, being hydraulically operated device the first wheel group group of control and raising makes the second wheel group group that row is contacted with road surface
Sail, when handling center of gravity of goods off normal when, fork truck choose loaded and unloaded near center of gravity of goods position when, the center of gravity of fork truck body
Can offset, the balancing weight position on vehicle body is adjusted by control device, fork truck body center of gravity is kept balance, prevent production from pacifying
Entirely, it is flexible above pallet fork by adjusting when the cargo size of user's handling exceedes existing fork truck fixes pallet fork length standard
Device, making to move pallet fork and telescoping out increases the length of pallet fork and meets the cargo handling of big size.When user's handling goods
Weight when exceeding existing fork-lift truck counterweight, user increases mass to improve fork truck entirety by cavity inside balancing weight
The weight of handling goods, when user using it is complete after fork truck after can remove mass, mitigate fork truck this body weight, save energy disappears
Consumption.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. the energy-conservation fork truck that a kind of center of gravity can be adjusted, including fork truck body（1）, the fork truck body（1）Including vehicle body（2）、
Wheel（3）, equipment, drive device and control device, the control device connects equipment and drive device, the drive
Dynamic device connection wheel（3）, the wheel（3）Connection vehicle body（2）, it is characterised in that：The wheel（3）Including the first wheel group
（301）With the second wheel group（302）, the first wheel group（302）It is provided with hydraulic means（4）, the hydraulic means（4）Energy
Enough control the first wheel group（301）Be raised and lowered, make the first wheel group（301）Or the second wheel group（302）Connect with road surface
Traveling is touched, the equipment includes pallet fork（5）And lowering or hoisting gear, the vehicle body（2）Connection lowering or hoisting gear, the lowering or hoisting gear
Connection pallet fork（5）, the pallet fork（5）It is provided with retractor device（6）, the retractor device（6）Pallet fork can be controlled（5）It is flexible
Length, the vehicle body（2）It is provided with balancing weight（7）, the balancing weight is provided with cavity（8）, the cavity（8）Can place and match somebody with somebody
Weight, changes fork truck body（1）Weight.
2. the energy-conservation fork truck that a kind of center of gravity according to claim 1 can be adjusted, it is characterised in that：The pallet fork（5）Bag
Include fixed pallet fork（501）With mobile pallet fork（502）, the lowering or hoisting gear is connected pallet fork（501）, the fixed pallet fork
（501）The mobile pallet fork of connection（502）, the mobile pallet fork（502）Connection retractor device（6）, drive the retractor device（6）,
The retractor device（6）Drive mobile pallet fork（502）, make to move pallet fork（502）Along fixed pallet fork（501）Set guide rail fortune
It is dynamic.
3. the energy-conservation fork truck that a kind of center of gravity according to claim 1 can be adjusted, it is characterised in that：The lowering or hoisting gear bag
Include goods shelf（9）, door frame（10）And fluid pressure drive device, the vehicle body（2）Connection door frame（9）, the door frame（10）With hydraulic pressure
Drive device and goods shelf（9）Connection, the goods shelf（9）Connection pallet fork（5）.
4. the energy-conservation fork truck that a kind of center of gravity according to claim 7 can be adjusted, it is characterised in that：The hydraulic-driven dress
Put including hydraulic pump and hydraulic cylinder, the control device connects hydraulic pump, the hydraulic pump and hydraulic means（4）, retractor device
（6）With hydraulic cylinder connection, the hydraulic cylinder and goods shelf（9）Connection.
5. the energy-conservation fork truck that a kind of center of gravity according to claim 1 can be adjusted, it is characterised in that：The hydraulic means
（4）And retractor device（6）Including hydraulic cylinder or oil hydraulic cylinder, the hydraulic cylinder or oil hydraulic cylinder connect hydraulic pump.
6. the energy-conservation fork truck that a kind of center of gravity according to claim 1 can be adjusted, it is characterised in that：The control device bag
Include driving switch, hydraulic control switch, deflecting roller（11）And pedal（12）, the driving switch connection drive device, the liquid
Pressure controlling switch connection hydraulic pump, the deflecting roller（11）Connection wheel（3）, the pedal（12）Connection hydraulic means（4）.
7. the energy-conservation fork truck that a kind of center of gravity according to claim 1 can be adjusted, it is characterised in that：The drive device bag
Include engine or motor.
8. the energy-conservation fork truck that a kind of center of gravity according to claim 1 can be adjusted, it is characterised in that：The mass includes
Liquid and metal.
9. the energy-conservation fork truck that a kind of center of gravity according to claim 2 can be adjusted, it is characterised in that：The first wheel group
（301）Tire include pneumatic tire, the second wheel group（302）Tire include solid tyre.
10. the energy-conservation fork truck that a kind of center of gravity according to right wants 1 can be adjusted, it is characterised in that：The first wheel group
（301）It is provided with leaf spring（13）, the leaf spring（13）Connection hydraulic means（4）；The leaf spring（13）Including
Spill leaf spring, the spill leaf spring can be in hydraulic means（4）Control under switched to by spill leaf spring it is convex
Shape leaf spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611212188.1A CN106744519A (en) | 2016-12-25 | 2016-12-25 | The energy-conservation fork truck that a kind of center of gravity can be adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611212188.1A CN106744519A (en) | 2016-12-25 | 2016-12-25 | The energy-conservation fork truck that a kind of center of gravity can be adjusted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106744519A true CN106744519A (en) | 2017-05-31 |
Family
ID=58920753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611212188.1A Withdrawn CN106744519A (en) | 2016-12-25 | 2016-12-25 | The energy-conservation fork truck that a kind of center of gravity can be adjusted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106744519A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150983A (en) * | 2017-06-30 | 2017-09-12 | 福建旺丰智能科技有限公司 | A kind of travelling bogie |
| CN107840273A (en) * | 2017-11-24 | 2018-03-27 | 长兴华阁耐物流装备有限公司 | A kind of overhead fork truck applied to logistics transportation |
| CN109704249A (en) * | 2018-12-10 | 2019-05-03 | 中国矿业大学 | A kind of fork truck overload protection arrangement and method |
| CN111689439A (en) * | 2020-06-12 | 2020-09-22 | 广东博智林机器人有限公司 | Fork structure and fork truck |
| CN111825024A (en) * | 2020-07-07 | 2020-10-27 | 马敏全 | Forklift transfer safety device |
| CN113929024A (en) * | 2021-11-01 | 2022-01-14 | 湖南速玖智能科技有限公司 | Intelligent engineering forklift without circular steering wheel |
-
2016
- 2016-12-25 CN CN201611212188.1A patent/CN106744519A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150983A (en) * | 2017-06-30 | 2017-09-12 | 福建旺丰智能科技有限公司 | A kind of travelling bogie |
| CN107840273A (en) * | 2017-11-24 | 2018-03-27 | 长兴华阁耐物流装备有限公司 | A kind of overhead fork truck applied to logistics transportation |
| CN109704249A (en) * | 2018-12-10 | 2019-05-03 | 中国矿业大学 | A kind of fork truck overload protection arrangement and method |
| CN111689439A (en) * | 2020-06-12 | 2020-09-22 | 广东博智林机器人有限公司 | Fork structure and fork truck |
| CN111825024A (en) * | 2020-07-07 | 2020-10-27 | 马敏全 | Forklift transfer safety device |
| CN113929024A (en) * | 2021-11-01 | 2022-01-14 | 湖南速玖智能科技有限公司 | Intelligent engineering forklift without circular steering wheel |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170531 |
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| WW01 | Invention patent application withdrawn after publication |