CN106585677B - It is a kind of to have level land transport concurrently, climb building and be lifted the floor truck of cargo function - Google Patents
It is a kind of to have level land transport concurrently, climb building and be lifted the floor truck of cargo function Download PDFInfo
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- CN106585677B CN106585677B CN201710019043.8A CN201710019043A CN106585677B CN 106585677 B CN106585677 B CN 106585677B CN 201710019043 A CN201710019043 A CN 201710019043A CN 106585677 B CN106585677 B CN 106585677B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
- B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
- B62B1/20—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible
- B62B1/208—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible foldable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
- B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
- B62B1/22—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/02—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs
- B62B5/026—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs with spiders or adapted wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2203/00—Grasping, holding, supporting the objects
- B62B2203/70—Comprising means for facilitating loading or unloading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
It is a kind of to have level land transport concurrently, climbing building and be lifted the floor truck of cargo function, belong to cargo handling equipment technical field, for transporting goods.Its technical solution is：Its stair climbing part, level walking part, lifting part, three parts can be respectively completed stair climbing, ground running and the different function for lifting cargo, can be switched in this three parts as needed in use.Stair climbing part uses triangle wheel construction, drives triangle wheel to carry out stair climbing operation by motor and gear；It is walked by motor and gear driving traveling wheel level walking part；Cargo can be lifted by electric pushrod in lifting part, and pass through front fork and angle fixing device easily handling goods.The present invention is the pioneering of goods transport systems, solves the problems, such as the transport large cargo up and down of lower building, significantly reduces the labor intensity of logistics delivery personnel, improves the working efficiency of logistics transportation, has significant economic benefit and social benefit.
Description
Technical field
The present invention relates to a kind of floor trucks with a variety of transports and function of transporting goods, and belong to cargo handling equipment skill
Art field.
Background technology
In recent years, along with the fast development of e-commerce, development of logistics line is swift and violent, and express delivery industry market scale persistently expands
Greatly.At the same time sales volume is also increasing year by year on the line of household appliances large scale commercial product, but the development of staple commodity net purchase is highly prone to
The limitation of logistics distribution, difficult point are the goods delivery process of last one kilometer.Showing according to investigations in current city still has greatly
Amount lower building is fitted without elevator, and traditional power-assisted trolley is only capable of cargo carrying out level land transport, cannot directly be transported to height
Layer does not have the user of elevator to dispense staple commodity carrying these and causes high effort for, increase the working strength of courier, delay
Delivery period also usually causes the contradiction between courier and user.Therefore, it adopts an effective measure and is solved as early as possible to a variety of resident families
The problem of environment progress Quick delivery large cargo is very necessary.
Invention content
It having level land transport concurrently technical problem to be solved by the invention is to provide a kind of, climb building and is lifted removing for cargo function
Trolley is transported, this floor truck can transport cargo on stair, level land, and can be lifted cargo, to incite somebody to action
Cargo is loaded and unloaded, and facilitates large cargo in the carrying of block.
Solving the technical solution of above-mentioned technical problem is：
A kind of to have level land transport concurrently, climbing building and be lifted the floor truck of cargo function, it includes stair climbing part, level land row
Part, lifting part are walked, stair climbing part includes two triangle wheels and triangle wheel shaft, and two triangle wheels are separately mounted to triangle wheel
The both ends of axis, level walking part include support plate, hind axle, traveling wheel, the triangle wheel shaft phase of support plate and stair climbing part
Connection, hind axle are installed on the supporting plate, and two traveling wheels are separately mounted to the both ends of hind axle, and lifting part includes load-bearing
Bar, lifting bar, material-loading rod, angle fixing device, telescopic forks, electric pushrod, the lower end of bearing bar and the three of stair climbing part
Horn ring axis is rotation connection, and the upper end of bearing bar is connect with one end of lifting bar by shaft, and the other end and angle of bar are lifted
Fixing device is connected, and angle fixing device is mounted on the lower end of material-loading rod, and telescopic forks are mounted under angle fixing device
End, electric pushrod are mounted between bearing bar and lifting bar, and motor is mounted in the support plate of stair climbing part, and motor passes through tooth
Wheel and switching device are connected with triangle wheel shaft, hind axle respectively.
Above-mentioned to have level land transport concurrently, climb building and be lifted the floor truck of cargo function, the triangle wheel is by nylon wheel, outer company
Fishplate bar, outer swivel plate adjust bayonet lock, pin, interior connecting plate, internal fixation plate, wheel shaft composition, have among internal fixation plate and outer swivel plate
For shaft hole sleeve on the triangle wheel shaft of stair climbing part, two outer swivel plates are located at the both sides of internal fixation plate, internal fixation plate
It is fixedly connected with triangle wheel shaft, outer swivel plate is to be rotatably connected with triangle wheel shaft, and respectively there are one outer respectively for the both sides of nylon wheel
One end of connecting plate and interior connecting plate is connected with nylon wheel jointly by wheel shaft, and the other ends of two outside link plates is respectively with two
A outer swivel plate is connected by pin, and the other end of two interior connecting plates is connected with the both sides of internal fixation plate by pin respectively,
Outer swivel plate is connected by mounting hole with bayonet lock is adjusted with internal fixation plate.
It is above-mentioned to have level land transport concurrently, climb building and be lifted the floor truck of cargo function, on the internal fixation plate of the triangle wheel
There is a mounting hole, there are three adjustment holes, three adjustment holes to be ranked sequentially on outer swivel plate, and three adjustment holes are rotated in outer swivel plate
When can be opposite with the mounting hole of internal fixation plate respectively, adjust bayonet lock and fasten mounting hole and adjustment hole to be detachably connected.
It is above-mentioned have concurrently level land transport, climb building and be lifted cargo function floor truck, the internal fixation plate of the triangle wheel and
Respectively there are three pin shaft hole on outer swivel plate, three pin shaft holes surround internal fixation plate and outer swivel plate center circumferentially at equal intervals
Distribution, three pin shaft holes of outer swivel plate are connected with one end of the outside link plate of three nylon wheels by axis pin respectively, interior solid
Three pin shaft holes of fixed board are connected with one end of the interior connecting plate of three nylon wheels by axis pin respectively.
Above-mentioned to have level land transport concurrently, climb building and be lifted the floor truck of cargo function, the level walking part includes two
A traveling wheel, storage battery, motor, bearing, hind axle, right support plate, middle support plate, left support plate, walking gear, gear set, cunning
Moving gear, shift fork, two traveling wheels are respectively driving wheel and driven wheel, right support plate, middle support plate, left support plate parallel
Row, right support plate, middle support plate, left support plate and triangle wheel shaft are vertically opposite, their one end has shaft hole sleeve to be mounted in triangle wheel
On axis, storage battery, motor are fixedly connected with middle support plate, right support plate, and motor shaft is connect by shaft coupling with balladeur train, sliding
Gear shaft, gear set each gear shaft be vertically mounted between left support plate and middle support plate, one end of gear set and triangle
The fixation gear of wheel shaft is meshed, and the other end of gear set is opposite with balladeur train, and driving wheel is fixedly connected on the one of hind axle
End, driven wheel are connected to the other end of hind axle by bearing, and walking gear is fixedly set on hind axle, balladeur train and cunning
Movable gear shaft is to be slidably connected, and two sliding positions of balladeur train are opposite with gear set and walking gear respectively, the cross of shift fork
Bridge is located at middle support plate and left support plate top, and the cross bar of shift fork is to be slidably connected with middle support plate and left support plate, shift fork
Plectrum embedded in balladeur train circumference allocating slot in.
It is above-mentioned have concurrently level land transport, climb building and be lifted cargo function floor truck, the level walking part also have with
The ratchet that is connected of lifting part, stop grab, supporting rack, slide bar, sliding slot, spring, the lower ends of two supporting racks respectively with left branch
Fagging, right support plate are rotatablely connected by shaft, and the upper end of two supporting racks is fixedly connected with the both ends of slide bar respectively, slide bar
Both ends are protruding to be respectively embedded into two sliding slots, and two sliding slots are separately fixed at the lower part of the bearing bar of lifting part, slide bar
Both ends are to be slidably matched with sliding slot, and having in sliding slot can be fixedly connected with the fixed card slot of slide bar, ratchet with one end of triangle wheel shaft,
The shaft at lock pawl rear portion is fixedly connected on the lower end of sliding slot, and the front of lock pawl is meshed with the teeth of ratchet, spring connection
Between lock pawl and sliding slot.
It is above-mentioned to have level land transport concurrently, climb building and be lifted the floor truck of cargo function, lifting part including handlebar stem,
It supports under bearing bar, electric pushrod, electric pushrod, supported on electric pushrod, lifting bar, material-loading rod, angle fixing device, being stretched
The both ends of front fork, handlebar stem are fixedly connected between two parallel bearing bar upper ends, and the upper ends of two bearing bars is respectively with two
One end of the parallel lifting bar of root is connected by shaft, and two bearing bar lower ends are rotation connection, two liftings with triangle wheel shaft
The other end of bar is connected by the angle fixing device material-loading rod parallel with two, and telescopic forks are mounted on angle fixing device
Lower end, the both ends supported under electric pushrod are respectively rotation connection, the both ends supported on electric pushrod point with two bearing bars
Be rotation connection with two lifting bars, the top and bottom of electric pushrod respectively under support and electric pushrod on electric pushrod
The middle part of support is vertically fixedly connected.
Above-mentioned to have level land transport concurrently, climb building and be lifted the floor truck of cargo function, the angle fixing device includes lift
Rising stem lower contact, sliding block outer baffle, sliding block, sliding block Internal baffle, positioning pin, resetting spring, spiral-tube, sliding block axis are lifted under bar
Connector is fixedly connected with lifting bar, and lifting bar lower contact is rotatablely connected with sliding block axis again, sliding block axis and sliding block outer baffle, sliding block,
Sliding block Internal baffle is rotation connection, and sliding block is in the sliding slot on material-loading rod, and sliding block is to be slidably matched with sliding slot, gear in sliding block
Plate, sliding block outer baffle are located at the outside of sliding slot, and sliding block Internal baffle, sliding block outer baffle are fixedly connected with a slide block respectively, positioning pin with
Sliding block axis is to be slidably connected, resetting spring and detent fit, sliding block outer baffle, sliding block, have on sliding block Internal baffle it is multiple with
The hole of detent fit, being lifted in bar lower contact has corresponding pin hole, has helix, two spiral-tubes to be sleeved on sliding block on sliding block axis
On helix on axis, resetting spring is connected with spiral-tube.
It is above-mentioned have concurrently level land transport, climb building and be lifted cargo function floor truck, the telescopic forks include preceding bolt,
Front fork nut, preceding fork bolt, preceding fork shaft, is folded and is inserted front fork, and material-loading rod is fixedly connected with preceding fork shaft, and front fork is dynamic with front fork shaft rotation
Connection, and front fork is slidably matched with preceding fork shaft axially, preceding bolt is fixedly connected with front fork, and preceding bolt can be inserted on material-loading rod
Corresponding aperture in, preceding fork bolt is connect with front fork axle thread, fold insert with front fork be rotation connection.
The beneficial effects of the invention are as follows：
The present invention include stair climbing part, level walking part, lifting part, three parts can be respectively completed stair climbing,
Ground running and the different function for lifting cargo, can switch in this three parts as needed in use.It climbs
Staircase uses triangle wheel construction, drives triangle wheel to carry out stair climbing operation by motor and gear；Level walking part by
Motor and gear driving traveling wheel are walked；Cargo can be lifted by electric pushrod in lifting part, and by front fork and
Angle fixing device easily handling goods.
The present invention is the pioneering of goods transport systems, solves the problems, such as the transport large cargo up and down of lower building, greatly
The big labor intensity for alleviating logistics delivery personnel, improves the working efficiency of logistics transportation, have significant economic benefit and
Social benefit, to promoting the development of logistics transportation cause that there is positive meaning.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structural schematic diagram of stair climbing part；
Fig. 3 is triangle wheel overall structure diagram；
Fig. 4 is triangle wheel decomposition texture schematic diagram；
Fig. 5 is that triangle wheel adjusts contrast schematic diagram；
Fig. 6 is the structural schematic diagram of level walking part；
Fig. 7 is the partial view of Fig. 6；
Fig. 8 is the structural schematic diagram for being lifted part；
Fig. 9 is the overall structure diagram of angle fixing device and telescopic forks；
Figure 10 is the decomposition texture schematic diagram of angle fixing device and telescopic forks；
Figure 11 is the folded state schematic diagram of the present invention；
Figure 12 is the level walking status diagram of the present invention；
Figure 13 is the stair climbing status diagram of the present invention；
Figure 14 is the lifting cargo state schematic diagram of the present invention；
Figure 15 is that the present invention puts down cargo state schematic diagram.
It is marked in figure as follows：Stair climbing part 1, level walking part 2, lifting part 3；
It is left side triangle wheel 1100, triangle wheel shaft 1200, three castor 1300 of right side, nylon wheel 1101, outside link plate 1102, outer
Swivel plate 1103 adjusts bayonet lock 1104, pin 1105, interior connecting plate 1106, internal fixation plate 1107, wheel shaft 1108；
Motor 2001, bearing 2002, driven wheel 2003, hind axle 2004, right support plate 2005, shift fork 2006, middle support
Plate 2007, gear 2008, left support plate 2009, driving wheel 2010, balladeur train 2011, gear set 2012, ratchet 2013, stop
Grab 2014, supporting rack 2015, slide bar 2016, sliding slot 2017, storage battery 2018, spring 2019；
It supports under handlebar stem 3001, bearing bar 3002, electric pushrod 3003, electric pushrod and is supported on 3004, electric pushrod
3005, bar 3006, material-loading rod 3007 are lifted；
Angle fixing device 3100, lifting bar lower contact 3101, sliding block outer baffle 3102, sliding block 3103, sliding block Internal baffle
3104, positioning pin 3105, resetting spring 3106, spiral-tube 3107, sliding block axis 3108
Telescopic forks 3200, preceding bolt 3201, front fork nut 3202, front fork 3203, preceding fork bolt 3204, preceding fork shaft
3205, it folds and inserts 3206.
Specific implementation mode
Fig. 1 shows that the present invention includes stair climbing part 1, level walking part 2, lifting part 3, and three parts can be distinguished
Stair climbing, ground running and the different function for lifting cargo are completed, it in use as needed can be in this three parts
It switches over.
Fig. 2 shows that stair climbing part 1 includes left side triangle wheel 1100, triangle wheel shaft 1200, three castor 1300 of right side.Its
1200 left end of intermediate cam wheel shaft is fixedly connected with left side triangle wheel 1100,1200 right end of triangle wheel shaft and three castor 1300 of right side are solid
Fixed connection, left side triangle wheel 1100 are identical as right side three castors, 1300 structures.
Fig. 3,4 displays, triangle wheel include nylon wheel 1101, outside link plate 1102, outer swivel plate 1103, adjust bayonet lock
1104, pin 1105, interior connecting plate 1106, internal fixation plate 1107, wheel shaft 1108.Wherein internal fixation plate 1107 and outer swivel plate 1103
Centre has shaft hole sleeve on the triangle wheel shaft 1200 of stair climbing part 1, and two outer swivel plates 1103 are located at internal fixation plate
1107 both sides, can be with 1107 relative rotation of internal fixation plate.Internal fixation plate 1107 is fixedly connected with triangle wheel shaft 1200, outer rotation
Plate 1103 is to be rotatably connected with triangle wheel shaft 1200, and the both sides of nylon wheel 1101 are each there are one outside link plate 1102 and interior respectively
One end of connecting plate 1106 is connected with nylon wheel 1101 jointly by wheel shaft 1108, the other end point of two outside link plates 1102
Be not connected by pin 1105 with two outer swivel plates 1103, the other ends of two interior connecting plates 1106 respectively with internal fixation plate
1107 both sides are connected by pin 1105, and outer swivel plate 1103 and internal fixation plate 1107 by mounting hole and adjust bayonet lock 1104
It is connected.
Fig. 3,4 displays, there is a mounting hole on the internal fixation plate 1107 of triangle wheel, and there are three adjust on outer swivel plate 1103
Hole, three adjustment holes are ranked sequentially, and three adjustment holes can be consolidated with internal fixation plate 1107 respectively when outer swivel plate 1103 rotates
Determine that hole is opposite, adjusting bayonet lock 1104 can extract or be inserted into the hole of alignment, to fix internal fixation plate 1107 and outer swivel plate 1103
Relative position.
Fig. 5 shows that triangle wheel has the function of regulating wheel away to adapt to the stair of different height.The interior fixation of triangle wheel
There is a mounting hole on plate 1107, there are three adjustment holes, three adjustment holes to be ranked sequentially on outer swivel plate 1103, and three adjustment holes exist
Outer swivel plate 1103 can be opposite with the mounting hole of internal fixation plate 1107 respectively when rotating, and adjusts bayonet lock 1104 and mounting hole and adjusting
Hole is to be detachably connected.Specific embodiment is；Bayonet lock 1104 bayonet lock will be adjusted from outer swivel plate 1103, internal fixation plate 1107
It is extracted in hole, rotates counterclockwise outer swivel plate 1103, drive outside link plate 1102, nylon wheel 1101, interior connecting plate 1106 successively
Movement, distance is adjusted between enabling three nylon wheels 1101.
Fig. 6,7 displays, level walking part 2 include two traveling wheels, storage battery 2018, motor 2001, bearing 2002, trailing wheel
Axis 2004, right support plate 2005, middle support plate 2007, left support plate 2009, walking gear 2008, gear set 2012, slide teeth
Wheel 2011, shift fork 2006, two traveling wheels are respectively driving wheel 2010 and driven wheel 2003.Right support plate 2005, middle support plate
2007, left support plate 2009 is arranged in parallel, and right support plate 2005, middle support plate 2007, left support plate and triangle wheel shaft 1200 hang down
Straight opposite, their one end has shaft hole sleeve on triangle wheel shaft 1200.Storage battery 2018, motor 2001 and middle support plate 2007,
Right support plate 2005 is fixedly connected, and motor shaft is connect by shaft coupling with balladeur train 2011.Slide teeth wheel shaft, gear set 2012
Each gear shaft be vertically mounted between left support plate 2009 and middle support plate, one end of gear set 2012 and triangle wheel shaft
1200 fixation gear is meshed, and the other end of gear set 2012 is opposite with balladeur train 2011.2008 fixing sleeve of walking gear
On hind axle 2004, balladeur train 2011 is to be slidably connected with slide teeth wheel shaft, two sliding positions of balladeur train 2011
It sets opposite with gear set 2012 and walking gear 2008 respectively.When needing level walking, balladeur train 2001 slides into and row
The position that gear 2008 is meshed is walked, when needing stair climbing, balladeur train 2011, which is slided into, to be meshed with gear set 2012
Position, switching are carried out by shift fork 2006.
Fig. 6,7 displays, the cross bar of shift fork 2006 are erected at 2009 top of middle support plate 2007 and left support plate, shift fork 2006
Cross bar and middle support plate 2007 and left support plate 2009 be to be slidably connected, the plectrum of shift fork 2006 is embedded in balladeur train 2011
In circumference allocating slot.It stirs shift fork 2006 to the left and right respectively and arrives different location, realize switching.
Fig. 6,7 displays, driving wheel 2010 are fixedly connected on one end of hind axle 2004, and driven wheel 2003 passes through bearing 2002
It is connected to the other end of hind axle 2004, this structure can complete turning action.
Fig. 6,7 displays, level walking part 2 also have the ratchet 2013 being connected with lifting part 3, stop to grab 2014, branch
Support 2015, slide bar 2016, sliding slot 2017, spring 2019, the lower ends of two supporting racks 2015 respectively with left support plate 2009, right
Support plate 2005 is rotatablely connected by shaft, and the upper end of two supporting racks 2015 is fixedly connected with the both ends of slide bar 2016 respectively,
The both ends of slide bar 2016 are protruding to be respectively embedded into two sliding slots 2017, and two sliding slots 2017 are separately fixed at lifting part 3
Bearing bar 3002 lower part, slide bar 2016 can slide in sliding slot 2017, and slide bar 2016 can be fixed by having in sliding slot 2017
Card slot.Ratchet 2013 is fixedly connected with one end of triangle wheel shaft 1200, and the shaft at 2014 rear portion of lock pawl is fixedly connected on cunning
The front of the lower end of slot 2017, lock pawl 2014 is meshed with the teeth of ratchet 2013, and spring 2019 is connected to lock pawl 2014
Between sliding slot 2017.Lock pawl 2014 can make ratchet 2013, triangle wheel shaft 1200 stop operating.
Fig. 8 shows that lifting part 3 includes being propped up under handlebar stem 3001, bearing bar 3002, electric pushrod 3003, electric pushrod
Support 3005, lifting bar 3006, material-loading rod 3007, angle fixing device 3100, telescopic forks in support 3004, electric pushrod
3200.The both ends of handlebar stem 3001 are fixedly connected between two parallel 3002 upper ends of bearing bar, two bearing bars 3002
One end of the upper end lifting bar 3006 parallel with two respectively is connected by shaft, two 3002 lower ends of bearing bar and triangle wheel shaft
1200 be rotation connection, and the other end of two lifting bars 3006 passes through the material-loading rod parallel with two of angle fixing device 3100
3007 are connected, and telescopic forks 3200 are mounted on the lower end of angle fixing device 3100, and 3004 both ends are supported under electric pushrod
It is respectively to be rotatablely connected with two bearing bars 3002, the both ends of support 3005 are respectively on electric pushrod with two lifting bars 3006
Rotation connection, the top and bottom of electric pushrod 3003 respectively with support 3004 under support 3005 and electric pushrod on electric pushrod
Middle part be vertically fixedly connected.
Fig. 9,10 displays, angle fixing device 3100 include lifting bar lower contact 3101, sliding block outer baffle 3102, sliding block
3103, sliding block Internal baffle 3104, positioning pin 3105, resetting spring 3106, spiral-tube 3107, sliding block axis 3108.It is connect under lifting bar
First 3101 are fixedly connected with lifting bar 3006, and lifting bar lower contact 3101 is rotatablely connected with sliding block axis 3108 again, sliding block axis 3108
It is rotation connection with sliding block outer baffle 3102, sliding block 3103, sliding block Internal baffle 3104, sliding block 3103 is on material-loading rod 3007
Sliding slot in, sliding block 3103 can slide up and down in sliding slot.Sliding block Internal baffle 3104, sliding block outer baffle 3102 are located at sliding slot
Outside, sliding block Internal baffle 3104, sliding block outer baffle are fixedly connected with sliding block 3103, sliding block 3103 are limited in sliding slot respectively,
It cannot deviate to both sides.Positioning pin 3105 is to be slidably connected with sliding block axis 3108, and resetting spring 3106 coordinates with positioning pin 3105,
Sliding block outer baffle 3102, sliding block 3103 have multiple holes coordinated with positioning pin 3105 on sliding block Internal baffle 3104, are lifted under bar
There is corresponding pin hole on connector 3101.When being lifted bar 3006 and sliding block 3103 is angled, positioning pin 3105 may pass through institute
There is corresponding aperture, and make angle-determining, and then material-loading rod 3007 is made to be fixed with lifting 3006 angle of bar.Two spiral-tubes 3107 are sleeved on
On the helix of sliding block axis 3108, two spiral-tubes 3107 are contacted along helix, when it is relatively rotated, 3107 meeting of both sides spiral-tube
It is pushed out along helix, and then positioning pin 3105 is made to pass through corresponding aperture, make spiral-tube under the effect of resetting spring 3106 when reversion
3107 reset.
Fig. 9,10 displays, telescopic forks 3200 include preceding bolt 3201, front fork nut 3202, front fork 3203, preceding fork bolt
3204, preceding fork shaft 3205, folding insert 3206.Material-loading rod 3007 is fixedly connected with preceding fork shaft 3205, front fork 3203 and preceding fork shaft
3205 rotation connections, and front fork 3203 is slidably matched with preceding fork shaft 3205 axially, preceding bolt 3201 is fixed with front fork 3203
Connection, preceding bolt 3201 can be inserted into the corresponding aperture on material-loading rod 3007, and preceding fork bolt 3204 is threadedly coupled with preceding fork shaft 3205,
It is rotation connection to fold and insert 3206 with front fork 3203.
Figure 11 shows that the present invention can be convenient for carrying with foldable integral.
The contraction method of level walking part 2 is；Slide bar 2016 is along 2017 upward sliding of sliding slot, and then by supporting rack 2015
It pulls level walking part 2 to be rotated around triangle wheel shaft 1200, goes to level walking part 2 and contacted with bearing bar 3002.Lifting portion
Points 3 contraction method is；Sliding block 3103 slides to the low side of 3007 upper hopper chute of material-loading rod, and material-loading rod 3007 is rotated around sliding block axis 3205
It is contacted with lifting bar 3006, electric pushrod 3003 is shunk, and lifting bar 3006 is rotated around handlebar stem 3001 and contacted with bearing bar 3002.
Folding slotting 3206 is rotated down around bolt 3204 to be contacted with front fork 3203.Bolt 3204 unclamps, and front fork 3203 is around preceding fork shaft 3205
Rotation, overlaps with material-loading rod 3007.
Figure 12 shows that level walking state of the invention is as follows：
Level walking part 2 is unfolded, step is opposite with above-mentioned contraction scheme.Front fork 3203 rotation to material-loading rod 3007
At an angle of 90 degrees position, positioning pin 3201 is fixed.Level walking state lifts handlebar stem 3001, front fork 3203 and ground
Fitting, large cargo is fixed on front fork 3203, handlebar stem 3001 is fallen, and makes driven wheel 2003, driving wheel 2010 and ground
Face contacts, and stirring shift fork 2006 makes balladeur train 2011 be engaged with gear 2008.The torque of motor 2001 through balladeur train 2011,
Gear 2008, driving wheel 2010 reach driving wheel 2010, make whole advance.When needing turning, handlebar stem 3001 is pressed, makes to climb
Staircase 1000 is liftoff, and only surplus driven wheel 2003, driving wheel 2010 land, and driven wheel 2003 is driven wheel, you can it is poor to complete
Fast divertical motion.
Figure 13 shows that stair climbing state of the invention is as follows：
It packs up level walking part 2.The rotation of front fork 3203 is to, at an angle of 90 degrees position, positioning pin 3201 will with material-loading rod 3007
It is fixed.Stirring shift fork 2006 makes balladeur train 2011 be engaged with gear set 2012.The torque of motor 2001 is through balladeur train
2011, gear set 2012 reaches stair climbing part 1, and stair climbing part 1 is overturn, and nylon wheel 1101 connects with next stage step successively
It touches, the whole buildings Zuo Pa is made to move.When needing turning, stop grabs 2014 and fixes ratchet 2013, and then makes triangle wheel shaft 1200
It stopping operating, presses handlebar stem 3001, keep the nylon wheel 1101 of front two liftoff, only surplus two nylon wheels 1101 below land,
Differential steering campaign can be completed.
Figure 14,15 displays, lifting of the invention and to put down cargo state as follows：
On level land on the basis of travel position, lifting part 3 is unfolded；Electric pushrod 3003 is released, and lifting bar 3006 is around handle
The rotation of hand lever 3001 is angled with bearing bar 3002, and sliding block 3103 slides to the top of 3007 upper hopper chute of material-loading rod, material-loading rod
3007 is angled around the rotation of sliding block axis 3205 and lifting bar 3006, and preceding bolt 3201 is by material-loading rod 3007 and is lifted bar 3006
Angle fix, fold insert 3206 around bolt 3204 rotation with front fork 3203 in line.Then cargo is fixed on front fork
On 3203, electric pushrod 3003 is released, and cargo is raised to desired height.Then cargo and the fixed of front fork 3203 are released,
It folds and inserts 3206 rotations, cargo is inserted 3206 along folding and slided.
Claims (9)
1. a kind of having level land transport concurrently, climb building and be lifted the floor truck of cargo function, it is characterised in that：It includes stair climbing portion
Point（1）, level walking part（2）, lifting part（3）, stair climbing part（1）Including two triangle wheels and triangle wheel shaft
（1200）, two triangle wheels are separately mounted to triangle wheel shaft（1200）Both ends, level walking part（2）Including support plate, after
Wheel shaft（2004）, traveling wheel, support plate and stair climbing part（1）Triangle wheel shaft（1200）It is connected, hind axle（2004）Peace
On the supporting plate, two traveling wheels are separately mounted to hind axle to dress（2004）Both ends, be lifted part（3）Including bearing bar
（3002）, lifting bar（3006）, material-loading rod（3007）, angle fixing device（3100）, telescopic forks（3200）, electric pushrod
（3003）, bearing bar（3002）Lower end and stair climbing part（1）Triangle wheel shaft（1200）For rotation connection, bearing bar
（3002）Upper end with lifting bar（3006）One end connected by shaft, be lifted bar（3006）The other end and angle fix and fill
It sets（3100）It is connected, angle fixing device（3100）Mounted on material-loading rod（3007）Lower end, telescopic forks（3200）Installation
In angle fixing device（3100）Lower end, electric pushrod（3003）Mounted on bearing bar（3002）With lifting bar（3006）It
Between, motor（2001）Mounted on stair climbing part（1）Support plate on, motor（2001）By gear and switching device respectively with
Triangle wheel shaft（1200）, hind axle（2004）It is connected.
2. according to claim 1 have level land transport concurrently, climb building and be lifted the floor truck of cargo function, feature exists
In：The triangle wheel is by nylon wheel（1101）, outside link plate（1102）, outer swivel plate（1103）, adjust bayonet lock（1104）, pin
（1105）, interior connecting plate（1106）, internal fixation plate（1107）, wheel shaft（1108）Composition, internal fixation plate（1107）With outer swivel plate
（1103）Centre has shaft hole sleeve to be mounted in stair climbing part（1）Triangle wheel shaft（1200）On, two outer swivel plates（1103）Respectively
Positioned at internal fixation plate（1107）Both sides, internal fixation plate（1107）With triangle wheel shaft（1200）It is fixedly connected, outer swivel plate
（1103）With triangle wheel shaft（1200）To be rotatably connected, nylon wheel（1101）Both sides respectively respectively there are one outside link plate
（1102）With interior connecting plate（1106）One end pass through wheel shaft（1108）Jointly and nylon wheel（1101）It is connected, is connected outside two
Plate（1102）The other end respectively with two outer swivel plates（1103）Pass through pin（1105）It is connected, two interior connecting plates（1106）
The other end respectively with internal fixation plate（1107）Both sides pass through pin（1105）It is connected, outer swivel plate（1103）And internal fixation plate
（1107）By mounting hole and adjust bayonet lock（1104）It is connected.
3. according to claim 2 have level land transport concurrently, climb building and be lifted the floor truck of cargo function, feature exists
In：The internal fixation plate of the triangle wheel（1107）On have a mounting hole, outer swivel plate（1103）It is upper that there are three adjustment hole, three tune
Knothole is ranked sequentially, and three adjustment holes are in outer swivel plate（1103）When rotation can respectively with internal fixation plate（1107）Mounting hole phase
It is right, adjust bayonet lock（1104）It is to be detachably connected with fasten mounting hole and adjustment hole.
4. according to claim 3 have level land transport concurrently, climb building and be lifted the floor truck of cargo function, feature exists
In：The internal fixation plate of the triangle wheel（1107）With outer swivel plate（1103）It is upper that there are three pin shaft hole, three axis pin orifice rings respectively
Around internal fixation plate（1107）With outer swivel plate（1103）Center is circumferentially spacedly distributed, outer swivel plate（1103）Three pin
Axis hole respectively with three nylon wheels（1101）Outside link plate（1102）One end be connected by axis pin, internal fixation plate（1107）
Three pin shaft holes respectively with three nylon wheels（1101）Interior connecting plate（1106）One end be connected by axis pin.
5. according to claim 4 have level land transport concurrently, climb building and be lifted the floor truck of cargo function, feature exists
In：The level walking part（2）Including two traveling wheels, storage batterys（2018）, motor（2001）, bearing（2002）, hind axle
（2004）, right support plate（2005）, middle support plate（2007）, left support plate（2009）, walking gear（2008）, gear set
（2012）, balladeur train（2011）, shift fork（2006）, two traveling wheels are respectively driving wheel（2010）And driven wheel（2003）,
Right support plate（2005）, middle support plate（2007）, left support plate（2009）It is arranged in parallel, right support plate（2005）, middle support plate
（2007）, left support plate（2009）With triangle wheel shaft（1200）Vertically opposite, their one end has shaft hole sleeve to be mounted in triangle wheel shaft
（1200）On, storage battery（2018）, motor（2001）With middle support plate（2007）, right support plate（2005）It is fixedly connected, motor shaft
Pass through shaft coupling and balladeur train（2011）Connection, slide teeth wheel shaft, gear set（2012）Each gear shaft be vertically mounted on
Left support plate（2009）With middle support plate（2007）Between, gear set（2012）One end and triangle wheel shaft（1200）Fixation tooth
Wheel is meshed, gear set（2012）The other end and balladeur train（2011）Relatively, driving wheel（2010）It is fixedly connected on trailing wheel
Axis（2004）One end, driven wheel（2003）Pass through bearing（2002）It is connected to hind axle（2004）The other end, walking gear
（2008）It is fixedly set in hind axle（2004）On, balladeur train（2011）It is to be slidably connected with slide teeth wheel shaft, balladeur train
（2011）Two sliding positions respectively with gear set（2012）And walking gear（2008）Relatively, shift fork（2006）Cross bar frame
It is located at middle support plate（2007）And left support plate（2009）Top, shift fork（2006）Cross bar and middle support plate（2007）With left branch
Fagging（2009）To be slidably connected, shift fork（2006）Plectrum be embedded in balladeur train（2011）Circumference allocating slot in.
6. according to claim 5 have level land transport concurrently, climb building and be lifted the floor truck of cargo function, feature exists
In：The level walking part（2）Also with lifting part（3）The ratchet being connected（2013）, stop grabs（2014）, supporting rack
（2015）, slide bar（2016）, sliding slot（2017）, spring（2019）, two supporting racks（2015）Lower end respectively with left support plate
（2009）, right support plate（2005）It is rotatablely connected by shaft, two supporting racks（2015）Upper end respectively with slide bar（2016）
Both ends be fixedly connected, slide bar（2016）Both ends protruding be respectively embedded into two sliding slots（2017）In, two sliding slots
（2017）It is separately fixed at lifting part（3）Bearing bar（3002）Lower part, slide bar（2016）Both ends and sliding slot（2017）For
It is slidably matched, sliding slot（2017）Inside having can be by slide bar（2016）Fixed card slot, ratchet（2013）With triangle wheel shaft（1200）'s
One end is fixedly connected, lock pawl（2014）The shaft at rear portion is fixedly connected on sliding slot（2017）Lower end, lock pawl（2014）'s
Front and ratchet（2013）Teeth be meshed, spring（2019）It is connected to lock pawl（2014）With sliding slot（2017）Between.
7. according to claim 6 have level land transport concurrently, climb building and be lifted the floor truck of cargo function, feature exists
In：The lifting part（3）Including handlebar stem（3001）, bearing bar（3002）, electric pushrod（3003）, support under electric pushrod
（3004）, support on electric pushrod（3005）, lifting bar（3006）, material-loading rod（3007）, angle fixing device（3100）, it is flexible
Front fork（3200）, handlebar stem（3001）Both ends be fixedly connected on two parallel bearing bars（3002）Between upper end, two are held
Weight bar（3002）The upper end lifting bar parallel with two respectively（3006）One end connected by shaft, two bearing bars
（3002）Lower end and triangle wheel shaft（1200）For rotation connection, two lifting bars（3006）The other end pass through angle fixing device
（3100）The material-loading rod parallel with two（3007）It is connected, telescopic forks（3200）Mounted on angle fixing device（3100）'s
Lower end supports under electric pushrod（3004）Both ends respectively with two bearing bars（3002）To be rotatablely connected, propped up on electric pushrod
Support（3005）Both ends respectively with two lifting bars（3006）For rotation connection, electric pushrod（3003）Top and bottom difference
It is supported on electric pushrod（3005）With supported under electric pushrod（3004）Middle part be vertically fixedly connected.
8. according to claim 7 have level land transport concurrently, climb building and be lifted the floor truck of cargo function, feature exists
In：The angle fixing device（3100）Including being lifted bar lower contact（3101）, sliding block outer baffle（3102）, sliding block（3103）、
Sliding block Internal baffle（3104）, positioning pin（3105）, resetting spring（3106）, spiral-tube（3107）, sliding block axis（3108）, it is lifted bar
Lower contact（3101）With lifting bar（3006）It is fixedly connected, is lifted bar lower contact（3101）And with sliding block axis（3108）Rotation connects
It connects, sliding block axis（3108）With sliding block outer baffle（3102）, sliding block（3103）, sliding block Internal baffle（3104）It is rotation connection, it is sliding
Block（3103）Embedded in material-loading rod（3007）Sliding slot in, sliding block（3103）It is to be slidably matched with sliding slot, sliding block Internal baffle（3104）、
Sliding block outer baffle（3102）Positioned at the outside of sliding slot, sliding block Internal baffle（3104）, sliding block outer baffle（3102）Respectively with sliding block
（3103）It is fixedly connected, positioning pin（3105）With sliding block axis（3108）To be slidably connected, resetting spring（3106）With positioning pin
（3105）Cooperation, sliding block outer baffle（3102）, sliding block（3103）, sliding block Internal baffle（3104）On have multiple and positioning pin
（3105）The hole of cooperation is lifted bar lower contact（3101）On have corresponding pin hole, sliding block axis（3108）On have helix, two spiral shells
Revolve cylinder（3107）It is sleeved on sliding block axis（3108）On helix on, resetting spring（3106）With spiral-tube（3107）It is connected.
9. according to claim 8 have level land transport concurrently, climb building and be lifted the floor truck of cargo function, feature exists
In：The telescopic forks（3200）Including preceding bolt（3201）, front fork nut（3202）, front fork（3203）, preceding fork bolt
（3204）, preceding fork shaft（3205）, fold insert（3206）, material-loading rod（3007）With preceding fork shaft（3205）It is fixedly connected, front fork
（3203）With preceding fork shaft（3205）Rotation connection, and front fork（3203）With preceding fork shaft（3205）Axially to be slidably matched, front fork
Pin（3201）With front fork（3203）It is fixedly connected, preceding bolt（3201）It can be inserted into material-loading rod（3007）On corresponding aperture in, front fork
Bolt（3204）With preceding fork shaft（3205）It is threadedly coupled, folds and insert（3206）With front fork（3203）For rotation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019043.8A CN106585677B (en) | 2017-01-11 | 2017-01-11 | It is a kind of to have level land transport concurrently, climb building and be lifted the floor truck of cargo function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019043.8A CN106585677B (en) | 2017-01-11 | 2017-01-11 | It is a kind of to have level land transport concurrently, climb building and be lifted the floor truck of cargo function |
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| Publication Number | Publication Date |
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| CN106585677A CN106585677A (en) | 2017-04-26 |
| CN106585677B true CN106585677B (en) | 2018-09-07 |
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|---|---|---|---|---|
| CN108327749A (en) * | 2018-04-23 | 2018-07-27 | 冬之阳 | A kind of Multifunction tow |
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| CN110481618A (en) * | 2019-09-29 | 2019-11-22 | 韩强 | Five jiaos of building climbing wheel groups |
| CN112776532A (en) * | 2019-11-05 | 2021-05-11 | 张润海 | Barrier-free electric wheelchair driving wheel |
| CN110712917B (en) * | 2019-11-13 | 2024-05-28 | 浙江海洋大学 | Luggage handling device |
| CN111170218B (en) * | 2020-02-12 | 2021-08-06 | 广东嘀卜工业互联网科技有限公司 | Forklift capable of automatically guiding |
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| CN113511240B (en) * | 2021-08-10 | 2022-02-18 | 丰县鲁班工程机械有限公司 | Sheet handling device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4650197A (en) * | 1982-12-23 | 1987-03-17 | Norris Terrence W | Hand trolley |
| CN201058615Y (en) * | 2007-03-15 | 2008-05-14 | 时大位 | Flat ground stair-climbing convertible vehicle |
| CN101897641A (en) * | 2009-06-01 | 2010-12-01 | 南京理工大学 | Dual-purpose travel-aided device for flat ground and stairs |
| CN104367425A (en) * | 2014-09-30 | 2015-02-25 | 章建成 | Light and convenient wheelchair for climbing stairs |
| CN105818849A (en) * | 2016-05-16 | 2016-08-03 | 重庆大学 | Load-carrying stair-climbing conveyor |
| CN105835929A (en) * | 2016-03-23 | 2016-08-10 | 重庆大学 | Heavy-load carrier |
| CN206579657U (en) * | 2017-01-11 | 2017-10-24 | 唐山学院 | A kind of floor truck for having level land transport concurrently, climbing building and lifting goods function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001088708A (en) * | 1999-09-20 | 2001-04-03 | Hideaki Moji | Push cart for shopping |
-
2017
- 2017-01-11 CN CN201710019043.8A patent/CN106585677B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4650197A (en) * | 1982-12-23 | 1987-03-17 | Norris Terrence W | Hand trolley |
| CN201058615Y (en) * | 2007-03-15 | 2008-05-14 | 时大位 | Flat ground stair-climbing convertible vehicle |
| CN101897641A (en) * | 2009-06-01 | 2010-12-01 | 南京理工大学 | Dual-purpose travel-aided device for flat ground and stairs |
| CN104367425A (en) * | 2014-09-30 | 2015-02-25 | 章建成 | Light and convenient wheelchair for climbing stairs |
| CN105835929A (en) * | 2016-03-23 | 2016-08-10 | 重庆大学 | Heavy-load carrier |
| CN105818849A (en) * | 2016-05-16 | 2016-08-03 | 重庆大学 | Load-carrying stair-climbing conveyor |
| CN206579657U (en) * | 2017-01-11 | 2017-10-24 | 唐山学院 | A kind of floor truck for having level land transport concurrently, climbing building and lifting goods function |
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| CN106585677A (en) | 2017-04-26 |
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