CN104961070B - Can be gone upstairs hand fork lifter - Google Patents
Can be gone upstairs hand fork lifter Download PDFInfo
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- CN104961070B CN104961070B CN201510304567.2A CN201510304567A CN104961070B CN 104961070 B CN104961070 B CN 104961070B CN 201510304567 A CN201510304567 A CN 201510304567A CN 104961070 B CN104961070 B CN 104961070B
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- Prior art keywords
- fixed
- door frame
- upstairs
- hand fork
- fork lifter
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
-
- 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
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
-
- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Handcart (AREA)
Abstract
It can be gone upstairs hand fork lifter the invention discloses one kind, it is therefore intended that providing a kind of big, easy to operate load, manpower driving, stable movement can reliably go upstairs hand fork lifter.The present invention includes support, creeper undercarriage, hoofing part mechanism, goods loader mechanism, cargo elevator structure and auxiliary body.Using the creeper undercarriage of inverted trapezoidal, the advantages of efficiently utilizing that caterpillar belt structure uniform force, ground pressure are small, vibration is small, noise is low, stairway step not damaged, relatively large load can be born；Laborsaving assembly pulley is used in Multi Loading and Unloading Functions, is that heavy lift can be achieved using manpower, it is mobile, with simple in construction, the advantages of dependable performance.In addition, whole device by manual drive, disclosure satisfy that mine down-hole, accurate laboratory or other without electric field demand.
Description
Technical field
The present invention relates to it is a kind of applied to mine down-hole, accurate laboratory or other without electric field hand fork lifter.
Background technology
Fork truck is the visual plant of logistic industry, is that door frame and pallet fork are the voluntarily hoist-transportation machines of equipment, can
For loading and unloading, stacking member goods.Its small volume, lightweight, compact conformation, low noise, low cost, operation are flexible, Ke Yi
Work-yard narrow space operation.Therefore in port and pier, railway station, warehouse goods yard, fork truck is almost indispensable
Machine.On the one hand, existing fork truck hardly big possibility in terms of gradient transport even stair transport, is related to the feelings of stair carrying
Condition generally requires manpower and goes completion, inefficiency.On the other hand, in some dangerous situations, such as mine down-hole, or nothing is required
The accurate laboratory of electromagnetic interference, or the Code in Hazardous Special Locations that can not be powered for a long time, existing electri forklift can not meet to use and want
Ask.
The machinery that can go upstairs is the device for being directed to the elderly's stair activity inconvenience in recent years and designing.With China
The tremendous development of Process of Urbanization Construction, the raising of quality of life, people start selection seashore villa and spend a holiday and support parents, while substantial amounts of
There is interior stairs in newly-built building, for wheelchair user and the elderly, and the various stair of indoor and outdoor, step have become them
The obstacle of daily routines.Therefore, it is various go upstairs machinery use and give birth to, according to principle can be divided into planet gear type climbing machine,
Track type climbing-building machinery and Purely mechanical climbing machine.But the underloadings such as wheelchair dress is directed to existing machinery of going upstairs more
Put, the machinery of going upstairs for cargo transport is still in blank.
Therefore, how to provide one kind can either handling goods, again can stair activity, and only need manpower driving can work
Hand fork lifter of going upstairs, be current urgent problem to be solved.
The content of the invention
For problem in the prior art, it is an object of the invention to provide a kind of heavier loads, climbing stairs, operation letter
Single, manpower driving, the hand fork lifter of going upstairs of stable movement.
To achieve the above object, the present invention is realized in：One kind can go upstairs hand fork lifter, including support, crawler belt
Walking mechanism, hoofing part mechanism, goods loader mechanism, cargo elevator structure and auxiliary body.
Support includes sole and door frame, and the door frame is fixed on the side of the sole, and both arrange in L-shaped,
Described door frame upper end is provided with handrail.
Creeper undercarriage is fixed on sole, is inverted trapezoidal structure, including driving wheel, driven pulley, BOGEY WHEEL and shoe
Band.
Hoofing part mechanism includes power-assisted handwheel, drive sprocket, driven sprocket, chain and transmission mechanism, the power-assisted hand
Wheel is fixed on door frame, and described drive sprocket is fixed on the crossbeam above the door frame, and the driven sprocket is arranged on institute
State on sole, described power-assisted handwheel drives drive sprocket to rotate by manual drive, and the drive sprocket passes through chain-driving
Driven sprocket, the transmission mechanism is arranged on described driven sprocket one end, and is fixed on sole, for changing driving force
Direction and drive the driving wheel of the creeper undercarriage to rotate.
Goods loader mechanism includes pallet fork, goods shelf and roller, and the goods shelf is fixed on by the way that the roller is removable
On the door frame, described pallet fork is suspended on goods shelf.
Cargo elevator structure includes fixed pulley, movable pulley, steel wire rope, holdback and lifting handle, and the lifting handle is consolidated
The side of door frame is scheduled on, described holdback and lifting handle is connected and fixed on the wall of door frame side, and described fixed pulley is fixed
Above described door frame, described movable pulley is fixed on described goods shelf, and one end of the steel wire rope is fixed on check
On device, the other end bypasses fixed pulley respectively and movable pulley is fixed on door frame.
Auxiliary body includes deflecting roller, and the deflecting roller is suspended vacantly under the creeper undercarriage rear and door frame
Side.
Further, the line at the center of described drive sprocket and driven sprocket is on vertical curve, described driven chain
The center of wheel is simultaneously on the axis of described sole.
Further, described transmission mechanism is worm-and-wheel gear, and described driven sprocket is connected with described worm screw.
Further, the quantity of described movable pulley is 1 or more than 1.
Further, described roller is composite track roller.
Further, described crawler belt is rubber belt track.
Further, described deflecting roller is two, and is symmetrically arranged.
Further, plane where the lowermost end of described deflecting roller is than the high 5- of plane where the lowermost end of creeper undercarriage
10cm。
The beneficial effect that the present invention reaches is：Using the creeper undercarriage of inverted trapezoidal, caterpillar belt structure is efficiently utilized
Uniform force, ground pressure are small, vibration is small, noise is low, the advantages of do not damage stairway step, can bear relatively large load；In handling
Laborsaving assembly pulley is functionally used, is that heavy lift can be achieved using manpower, mobile, with simple in construction, dependable performance etc. is excellent
Point.In addition, whole device by manual drive, disclosure satisfy that mine down-hole, accurate laboratory or other without electric field demand.
Brief description of the drawings
Fig. 1 is the front view of shown hand fork lifter of going upstairs；
Fig. 2 is the left view of shown hand fork lifter of going upstairs；
Fig. 3 is the sole structure diagram of hand fork lifter of can going upstairs；
Fig. 4 is the portal-framed structure sketch of hand fork lifter of can going upstairs；
Fig. 5 is driven schematic diagram for the driving force for the hand fork lifter that can go upstairs；
Fig. 6 is the crawler belt decorative pattern figure of hand fork lifter of can going upstairs；
Fig. 7 is the crawler belt sectional drawing of hand fork lifter of can going upstairs.
Embodiment
As depicted in figs. 1 and 2, the hand fork lifter that can go upstairs includes support, creeper undercarriage, hoofing part mechanism, goods
Thing loader mechanism, cargo elevator structure and auxiliary body.
Wherein, support includes sole 2 and door frame 7, and the door frame 7 is fixed on the side of the sole 2, and both are in L
Font arranges that the described upper end of door frame 7 is provided with handrail 19.
Creeper undercarriage undertake can go upstairs can go upstairs manually fork truck traveling and climbing function, creeper undercarriage
It is fixed on sole, is inverted trapezoidal structure, it is mainly made up of driven pulley 1, crawler belt 3, BOGEY WHEEL 4 and driving wheel 5, driven pulley
1st, driving wheel 5 and BOGEY WHEEL 4 are all arranged on sole 2.Wherein, driving wheel 5 is located at the rear portion of sole 2, and driven pulley 1 is located at
Front portion, the equidistantly distributed of BOGEY WHEEL 4 is on sole 2.In order that crawler belt skidproof effect is more preferably, in stair climbing, earth-catching property is more
Plus, L-shaped grouser is provided with the crawler belt.
Goods loader mechanism is mainly made up of roller 8, pallet fork 10 and goods shelf 13, and the number of pallet fork 10 is two, is hanged respectively
Hang on goods shelf 13, and the spacing of the two can be adjusted flexibly；Goods shelf 13 is limited in door frame 7 by roller 8
On guide rail, the baffle plate of restricted pallet fork extreme lower position is set in the lower section of guide rail.
Hoofing part mechanism includes the power-assisted handwheel 9 being fixed on door frame, and power-assisted handwheel 9 is on same axle and installed
Drive sprocket 18 in the upper cross-beam of door frame 7, for the chain 15 of transmission, the driven sprocket 12 driven by chain 15, and
Transmission mechanism 11；Driven sprocket 12 be arranged on the end of sole 2 supporting plate 23 on, described power-assisted handwheel 9 by manual drive,
Drive sprocket 18 is driven to rotate, the drive sprocket 18 drives driven sprocket 12 by chain 15, the transmission mechanism 11 is set
In described one end of driven sprocket 12, and it is fixed on sole 2, transmission mechanism 11 and driven sprocket 12 are installed in same axle
On, for changing the direction of driving force and driving the driving wheel 5 of the creeper undercarriage to rotate, i.e., power-assisted handwheel 9 is applied
Driving force become creeper undercarriage traveling driving force.
Cargo elevator structure is main by 20 groups of movable pulley 14, steel wire rope 16, fixed pulley 17, holdback 21 and lifting handle
Into movable pulley 14 is fixed on goods shelf 13, at least one or more than 1, and fixed pulley is fixed on the crossbeam of the top of door frame 7；
Steel wire rope 16 connects movable pulley 14 and fixed pulley 17, and end is connected with holdback 21, i.e., one end of described steel wire rope 16 is fixed on
On holdback 21, the other end bypasses fixed pulley 17 respectively and movable pulley 14 is fixed on door frame 7；Holdback 21 and lifting handle 20
It is connected and fixed on the side wall of door frame 7, it is therefore intended that prevent the height of automatic descending and fixed goods shelf 13 in weight uphill process
Degree, the lifting handle 20 is fixed on the side of door frame 7, and lifting handle 20 lifts goods to apply external force.
Auxiliary body's function is mainly the steering for realizing the hand fork lifter that can go upstairs, and it includes deflecting roller 6, and deflecting roller 6 is pacified
Lower section mounted in the end of sole 2, that is, be suspended vacantly below the creeper undercarriage rear and door frame 7.Handrail 19 is installed
In the top of door frame 7, during steering, handrail 19 is forced in, the hand fork lifter that can go upstairs layback certain angle makes deflecting roller land, so
Fork truck is rotated afterwards to realize steering.As optional embodiment, described deflecting roller 6 is the gear-like of outer marginal zone rubber teeth
Structure, described deflecting roller 6 can provide stable support function and certain anti-retrogression function when upstairs, i.e., when upstairs, turn
6 can also coordinate to wheel with stairway step, when fork truck is retreated, deflecting roller 6 can be fixed locked on step with pin, prevent from pitching
Car, which is fallen back, to be occurred surprisingly.
Reference picture 3, sole 2 is made up of the left side wall 22 being arranged symmetrically with right side wall 25, floor 23 and supporting plate 24, branch
Fagging 24 is used for the installation and cooperation of transmission mechanism 11 and driven sprocket 12 on sole rear portion.Left and right sidewall is cut using steel plate
It is welded, manufacturing cost is low, simple in construction, lightweight, rigidity is big, and is easy to connect other structures.Material uses 45 steel,
Hot rolled steel plate, it is easy to weld.3 pieces of floor goods loader mechanisms are set to be used for the handling for realizing goods, typically coordinating with pallet makes
With wherein pallet fork is the important process device of supporting goods, and the quality of its designing quality directly determines the hand fork lifter that can go upstairs
Service behaviour.Pallet fork is typically swaged into by steel alloy 40Cr.The bearing fork component being referred to as on jaw, with crotch of pallet fork vertical section connects
Connect.Jaw can be divided into eye thimble formula jaw and hook and slot formula jaw, the present invention again uses hook and slot formula jaw.The horizontal segment front end of pallet fork
Referred to as prong, is that picking is convenient usually as wedge shape, upper to put down the ground that oblique prong adapts to slightly injustice, is had to picking
Profit；And it is upper tiltedly under flat prong, then preferably soft cargo handling is used.
Reference picture 4, door frame 7 it is main by column 27, positioned at the top of column 27 and the crossbeam 26 and handrail 19 that weld therewith
Composition.Column 27 is welded using C-shaped channel steel and sheet material, into F types.Because channel-section steel has the ability of very strong carrying pressure.One
Shared two root posts, left and right respectively has 1, and the method fastened using bolt is fixed on chassis overhang.Crossbeam 26 is using wide × high
For the ㎜ of 172 ㎜ × 30 hot-rolled steel channel（GB/T 707-1988）, because the fixed pulley 17 and holdback 21 of cargo elevator structure will
It is placed on crossbeam 26, so C-shaped channel steel is lain on column, Open Side Down, is connected using the method for welding.
Position of the drive sprocket 18 above door frame does not have too many limitation, but as a kind of preferred embodiment, should
Ensure that it is located on perpendicular with the line of centres of driven sprocket 12, and the center of driven sprocket 12 is located in sole 2 simultaneously
On axis, operation is more convenient.
The function of transmission mechanism 11 is the change for realizing driving force direction, traditional bevel gear system and worm-and-wheel gear
All there are above-mentioned functions, but worm-and-wheel gear has auto-lock function, the danger voluntarily glided when can prevent fork truck upstairs.
As a kind of preferred embodiment, roller 8 is a kind of composite track roller.It is by radial and axial two bearing groups
Close installation to form, simplify structure, effectively save installing space, convenient use only need to weld spindle nose, no installing in plate hole
Whole bearing must be dismantled, accessory replaceability is strong.Crawler belt 3 selects rubber belt track, and its is lightweight small, and grounding pressure is small, and fork truck
Stairway step is inevitably damaged during stair climbing, is difficult to meet using common crawler belt and vibrates small, uniform load, fortune
Row smoothly climbs building requirement.
The number of deflecting roller 6 can be one, be arranged in the centre position of the crossbeam of sole end, but as a kind of excellent
Select scheme, using two and it is symmetrical design cause fork-truck steering it is more steady.Where the lowermost end of described deflecting roller 6
Plane is than the high 5-10cm of plane where the lowermost end of creeper undercarriage.
Reference picture 5, the fork truck traveling operation principle that can go upstairs manually is：By sprocket wheel 12,18 and chain 15, people is applied
External force pass to transmission mechanism 11, transmission mechanism changes the master that creeper undercarriage is inputed to behind the direction of the driving force of input
Driving wheel 5, so as to drive the rotation of crawler belt, realizes the walking of mechanism.
Crawler belt 3 in reference picture 6, the present invention preferentially uses rubber belt track, because rubber belt track is rubber and metal or fiber
The endless rubber belt of Material cladding, with ground pressure is small, tractive force is big, the small, noise of vibration is low, do not damage road surface, is travelled
The features such as speed is fast, quality is small, can part alternative tires and steel crawler belt be used for farm machinery, engineering machinery and Transport Machinery
Running gear.The outer layer glue decorative pattern of crawler belt has parallel, single terraced, double ladders, triangle butterfly, snowflake, sawtooth and smooth surface without classes such as decorative patterns
Type.In the present invention, building action is climbed due to realize, the standard formulated according to the national former Ministry of Construction：Stair step width should not be small
In 0.26m, riser height not should be greater than 0.175m, and reckoning learns that the maximum angle of stair must not exceed 35 degree.And fork truck
Climb Lou Shixu to operate steadily, without larger vibrations, this requires running gear ladder before and after stair to realize a smooth transition.Most
Afterwards, should try one's best and reduce infringement of the walking mechanism to stair, thus in the present invention crawler belt 3 outer layer glue decorative pattern using it is netted staggeredly
Lines, and decorative pattern 31 and decorative pattern 33 be symmetrically arranged, centre sets a groove 32, its is more applicable and stair occasion.Ginseng
According to Fig. 7, groove 32 is arranged on the center line of crawler belt 3, and its depth is provided with inside the 1/2 of the height of decorative pattern side glue 34, groove 32
The hole being engaged with driving wheel, driven pulley and BOGEY WHEEL；Protective layer 36 is made up of High Strength Wear-Resistance Material, is used as rubber belt track
The casing play of middle bearing tension force and transmission power, inside is installed with traction piece 35.Generally, the selection of protective layer not only wants energy with arrangement
Enhancing and protective effect are played to strength layer traction piece, also there is the ability for absorbing impact and buffering, external force can be resisted to band
Body is stung, gnawed, puncturing and cutting damage.Traction piece 35 except using in addition to most common wirecord fabric, can also with zinc-coated wire, no
Become rusty steel steel wire, glass fibre, aramid fiber or the long synthetic fibers cotton rope of other high intensity flatness or cord.The material of protective layer 36 has polyamide fibre
Eyelet fabric, canvas, cord and the film filled with different fibers.Sizing material typically uses -3, polyurethane elastomer or based on -3
- 34/53 and -3453.The bottom that side glue 38 is located at crawler belt 3 is taken turns, presses close to driving wheel；Core gold 37 is transmission power in crawler belt 3, led
To and cross-brace part.
Function synthesized of going upstairs of the invention by the Multi Loading and Unloading Functions of traditional fork truck and climbing machine, will be simple in one
Mechanical mechanism a kind of fork truck gone upstairs is obtained by conversion, combination, with simple in construction, operation is reliable, operates steadily,
The characteristics of wide adaptation range, the need for facilitating daily life, thus with good market value.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be within the protection domain being defined in the patent claims.
Claims (8)
- The hand fork lifter 1. one kind can go upstairs, including support, creeper undercarriage, hoofing part mechanism, goods loader mechanism, goods Thing elevating mechanism and auxiliary body, it is characterised in that：Support includes sole and door frame, and the door frame is fixed on the side of the sole, and both arrange in L-shaped, described Door frame upper end be provided with handrail；Creeper undercarriage is fixed on sole, is inverted trapezoidal structure, including driving wheel, driven pulley, BOGEY WHEEL and crawler belt；Hoofing part mechanism includes power-assisted handwheel, drive sprocket, driven sprocket, chain and transmission mechanism, and the power-assisted handwheel is consolidated It is scheduled on door frame, described drive sprocket is fixed on the crossbeam above the door frame, the driven sprocket is arranged on the bottom On plate rail, described power-assisted handwheel drives drive sprocket to rotate by manual drive, and the drive sprocket is driven by chain-driving Sprocket wheel, the transmission mechanism is arranged on described driven sprocket one end, and is fixed on sole, the side for changing driving force To and drive the driving wheel of the creeper undercarriage to rotate；Goods loader mechanism includes pallet fork, goods shelf and roller, the goods shelf by the roller it is removable be fixed on it is described On door frame, described pallet fork is suspended on goods shelf；Cargo elevator structure includes fixed pulley, movable pulley, steel wire rope, holdback and lifting handle, and the lifting handle is fixed on The side of door frame, described holdback and lifting handle is connected and fixed on the wall of door frame side, and described fixed pulley is fixed on institute Above the door frame stated, described movable pulley is fixed on described goods shelf, and one end of the steel wire rope is fixed on holdback, The other end bypasses fixed pulley respectively and movable pulley is fixed on door frame；Auxiliary body includes deflecting roller, and the deflecting roller is suspended vacantly below the creeper undercarriage rear and door frame.
- 2. can go upstairs hand fork lifter as claimed in claim 1, it is characterized in that：In described drive sprocket and driven sprocket The line of the heart is on vertical curve, and the center of described driven sprocket is located on the axis of described sole simultaneously.
- 3. can go upstairs hand fork lifter as claimed in claim 2, it is characterized in that：Described transmission mechanism is worm and gear machine Structure, described driven sprocket is connected with described worm screw.
- 4. can go upstairs hand fork lifter as claimed in claim 1, it is characterized in that：The quantity of described movable pulley is 1 or 1 More than individual.
- 5. can go upstairs hand fork lifter as claimed in claim 1, it is characterized in that：Described roller is composite track roller.
- 6. can go upstairs hand fork lifter as claimed in claim 1, it is characterized in that：Described crawler belt is rubber belt track.
- 7. the hand fork lifter of going upstairs as described in any claim in claim 1 to 6, it is characterized in that：Described steering Take turns as two, and be symmetrically arranged.
- 8. can go upstairs hand fork lifter as claimed in claim 7, it is characterized in that：Plane where the lowermost end of described deflecting roller Than the high 5-10cm of plane where the lowermost end of creeper undercarriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304567.2A CN104961070B (en) | 2015-06-06 | 2015-06-06 | Can be gone upstairs hand fork lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304567.2A CN104961070B (en) | 2015-06-06 | 2015-06-06 | Can be gone upstairs hand fork lifter |
Publications (2)
| Publication Number | Publication Date |
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| CN104961070A CN104961070A (en) | 2015-10-07 |
| CN104961070B true CN104961070B (en) | 2017-10-27 |
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| CN201510304567.2A Active CN104961070B (en) | 2015-06-06 | 2015-06-06 | Can be gone upstairs hand fork lifter |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927395A (en) * | 2017-05-12 | 2017-07-07 | 谜米机器人自动化（上海）有限公司 | Automatic guided vehicle and unmanned handling system |
| CN110386574A (en) * | 2019-08-04 | 2019-10-29 | 五邑大学 | A kind of small fork truck that itself can be climbed |
| CN111573476A (en) * | 2020-06-24 | 2020-08-25 | 马军宇 | Multifunctional loading and unloading cart |
| CN112438843A (en) * | 2020-12-07 | 2021-03-05 | 高刚 | Track adjustable wheelchair |
| CN113759819B (en) * | 2021-09-15 | 2023-09-01 | 合肥工业大学 | Lifting mechanism control system and flow for logistics conveying |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2111240U (en) * | 1991-03-24 | 1992-07-29 | 李统松 | Multi-functional cart |
| JP2009101923A (en) * | 2007-10-24 | 2009-05-14 | Haiden:Kk | Endless belt device for step elevation, and hand-propelld vehicle equipped therewith |
| JP2009292204A (en) * | 2008-06-03 | 2009-12-17 | Bridgestone Corp | Rubber crawler |
| WO2010008326A1 (en) * | 2008-07-18 | 2010-01-21 | Akromet Ab | Fork pallet truck |
| CN201809117U (en) * | 2010-04-30 | 2011-04-27 | 芜湖瑞创投资股份有限公司 | Manually operated forklift |
| CN203855372U (en) * | 2014-08-08 | 2014-10-01 | 浙江博凡实业有限公司 | Hand fork lifter |
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2015
- 2015-06-06 CN CN201510304567.2A patent/CN104961070B/en active Active
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| CN104961070A (en) | 2015-10-07 |
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