CN102730037B

CN102730037B - Power-driven hand-push loading, unloading and transporting vehicle

Info

Publication number: CN102730037B
Application number: CN201110223838.3A
Authority: CN
Inventors: 曹东峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-24
Filing date: 2011-08-05
Publication date: 2014-10-01
Anticipated expiration: 2031-08-05
Also published as: CN102730037A

Abstract

The invention provides a power-driven hand-push loading, unloading and transporting vehicle. The power-driven hand-push loading, unloading and transporting vehicle comprises a main vehicle frame, a brake anti-collision push-pull rod, a lifting vehicle frame and a lifting mechanism, wherein a driving wheel and a universal wheel are arranged on the main vehicle frame, the driving wheel is connected with a power device, and the main vehicle frame is provided with a brake mechanism corresponding to the driving wheel; a handlebar is arranged at the back end of the main vehicle frame, the back end of the main vehicle frame is articulated with the brake anti-collision push-pull rod, and the forward rotation of the main vehicle frame can enable the brake mechanism to act; the lifting vehicle frame is arranged on the main vehicle frame and articulated with the front part of the main vehicle frame, a fork is arranged at the front end of the lifting vehicle frame, and the upper surface of the lifting vehicle frame and the fork constitute a cargo carrying part; and the lifting mechanism is arranged between the main vehicle frame and the lifting vehicle frame. The transporting vehicle can enter and exit from a narrow space and linger, and has the advantages of greater transport capacity, safety and reliability.

Description

Power-driven loading-unloading transport handcart

Technical field

The present invention relates to a kind of transport trolley, especially a kind of handling carrier of hand propelled.

Background technology

In prior art, become in the goods process of bag by train or motor-driven containerized shipment Automobile Transportation, the labour intensity of handling process is very big, and efficiency is very low.Reason is that the vehicle interior space of train or lorry is less, and conventional handling machinery cannot be come in and gone out.So, often adopt manpower transport.Load 1200 bags of chemical fertilizer with a common train wagon, every bag of 50kg, the handling labor of totally 60 tons is example, porter once carries one bag, need to come and go 1200 times, the length of general railway carriage is 12.5 meters, and the distance of railway carriage and platform break bulk point is generally 25 meters, amount to, the one way distance that transports goods is approximately approximately on average 18 meters.The goods of a railway carriage of handling, porter approximately will bear a heavy burden and walk more than 20 kilometer.Its labour intensity is very large.Find that a kind of can thoroughly to solve the equipment that people carries on the back heavy handling labor be pickaback this area problem demanding prompt solution.

In prior art, there is the small and exquisite handbarrow of a kind of volume, i.e. hand barrow, it can be two-wheel, also has single-wheel.Hand barrow can enter narrow and small train or boxcar easily, and can turn round therein.But hand barrow of the prior art, completely, by Manual-pushing, transports goods and once only has at most 100 kilograms.Have, use existing hand barrow, unloading and piling up of goods, can not accomplish that Integratively completes, cumbersome.

In prior art, also have a kind of small and exquisite handbarrow ground ox, its weak point is, the planeness on ground required high, and need to be equipped with pallet as accessory appliances, therefore, can not complete easily the handling work of bag cargo.

Fork truck of the prior art also can be used as handbarrow, and its weak point is that volume is excessive, and own wt is overweight, turnover railway carriage or compartment inconvenience.In addition, fork truck also needs pallet as accessory appliances, and it is also very inconvenient using.For example, the railway carriage of 60 tons, carrying bag cargo, needs 30 long 1.2 meters, pallets of wide 1.2 meters conventionally.While transporting goods, additional pallet need to manually be moved, and consume extraly very large manpower and materials, and has greatly improved landed cost.

Summary of the invention

The object of the invention is to improve the deficiencies in the prior art, provide one to come in and go out and to stay at small space easily, there is the power-driven loading-unloading transport handcart of larger transport capacity.

The object of the present invention is achieved like this:

A kind of power-driven loading-unloading transport handcart provided by the invention, is characterized in that, comprises main car frame, brake anticollision push-pull bar, lifting vehicle frame and a lifting mechanism;

Described main car frame, its top has a bearing surface, and this main car frame bottom is provided with front-wheel and trailing wheel, and one of them is drive wheel, and another is cardan wheel, and described drive wheel is two, and described cardan wheel is one or two; Two described drive wheels connect an engine installation by transmission device; Described main car frame is provided with and two braking mechanisms that described drive wheel is corresponding;

Described brake anticollision push-pull bar, it is hinged on described main car frame rear end, and this brake anticollision push-pull bar is along the Width setting of main car frame; Two described braking mechanisms comprise the brake member that can reset, it is hinged by the body of rod of attaching parts and described brake anticollision push-pull bar respectively, this hinge-point is: when described brake anticollision push-pull bar is during around hinge-point Double-directional rotary, this brake anticollision push-pull bar drives described brake member to a direction motion and the brake of same purpose drive wheel;

Described lifting vehicle frame, on it, there is a loading face, this lifting vehicle frame and main car frame are hinged, this articulated structure is: described lifting vehicle frame is rotated between following two positions: position one is placed on for hoist vehicle on the bearing surface of described main car frame around jointed shaft, described loading faces up, position two for lifting vehicle frame stand in described main car frame front end above and the lower end of lifting vehicle frame land;

Described lifting mechanism, it comprises two parts that interconnect and can be movable relatively, wherein parts are located on described main car frame, another parts connect described lifting vehicle frame, described lifting vehicle frame is rotated between described two positions around described jointed shaft, this lifting mechanism connects lifting power device or connects hand gear, drives the described relative motion of these two parts.

Described engine installation, comprises a driving engine and connected fuel tank, and it is all installed on described main car frame; The output shaft of described driving engine is connected with two described drive wheels by transmission device; Or,

Described engine installation comprises a motor and connected storage battery, and it is all installed on described main car frame; The output shaft of described motor is connected with two described drive wheels by transmission device.

In the time that described engine installation is driving engine, in transmission device between the output shaft of described driving engine and described drive wheel, be provided with a power-transfer clutch, at the hinged clutch push rod in the rear end of described main car frame, this clutch push rod is connected with the clutch arm on described power-transfer clutch by attaching parts, even if make to rotate forward this clutch push rod power-transfer clutch in off-state, drive wheel separates with engine installation, described clutch push rod be positioned at described brake anticollision push-pull bar before, on its track rotating forward at brake anticollision push-pull bar, make to press tactile this clutch push rod to rotate and produce centrifugation in the time of the raw braking action of brake anticollision push-pull bar forwards movable property, or,

In the time that described engine installation is motor, described engine installation comprises motor, electric machine controller, three condition switch, governor handle and storage battery, described storage battery, electric machine controller and electrical motor are installed on described main car frame, this three condition switch is arranged on main car frame rear end, and described governor handle is arranged on the handle of main car frame rear end; The two ends of described three condition switch are connected with the motor status control end of described electric machine controller by wire, control motor forward, stop, reversing; The signal output part of described governor handle is connected with the speed governing port of described electric machine controller by wire, controls the rotating speed of motor.

In the time that described engine installation is driving engine, the transmission device being provided with between described driving engine and described drive wheel comprises a change speed gear box, the output shaft of described driving engine directly or indirectly connect the input shaft of this change speed gear box by a driving device, described change speed gear box is provided with an output shaft and connects described drive wheel, in messenger chain between described engine output shaft and described drive wheel, be provided with described power-transfer clutch, the reducible clutch arm which is provided with is connected with described clutch push rod by a flexible cord or pull bar;

A transmission shaft in driving system in described change speed gear box is provided with speed change slide teeth wheels, it is placed in diverse location and makes the different gear engagements between described input shaft and output shaft or do not engage with any gear on its upstream transmission shaft, form friction speed shelves and neutral gear, the governor lever that these speed change slide teeth wheels are provided with connects one end of a shifter bar, and the other end of this shifter bar is arranged on the rear end of described main car frame;

On a transmission shaft in driving system in described change speed gear box, reverse sliding gear group is set, it is placed in diverse location and makes the rotating speed of output shaft contrary, the reverse gear arm that this reverse sliding gear group is provided with is connected with a reverser handle by a flexible cord or bar, and this reverser handle is arranged on the rear end of described main car frame;

The acceleration cable of described driving engine is arranged on the throttle control handle of described main car frame rear end by a flexible cord or pull bar connection one; Or,

In the time that described engine installation is motor, also comprise a BK Brake Switch, it is arranged on described main car frame rear end and is positioned at front or front and the rear of described brake anticollision push-pull bar, it is at brake anticollision push-pull bar forward or forward and on the track rotating backward, make to press and touch this BK Brake Switch in the time of the raw braking action of brake anticollision push-pull bar forwards movable property, this BK Brake Switch is connected with the motor status control end of described electric machine controller by wire, makes electrical motor stall.

The connection structure of described drive wheel and described main car frame is: a drive axle is set on described main car frame, it comprises a crane span structure body, on crane span structure body, diff is set, the power intake of one transmission shaft connected with differential, two clutch ends of two-semiaxle connected with differential, described transmission shaft connects described engine installation, on two-semiaxle, set firmly two respectively described in drive wheel, between described crane span structure body and drive wheel, described brake member is set.

Described lifting mechanism, is a hydraulic efficiency gear, comprises hydraulic actuating cylinder, Hydraulic Pump and fuel tank, and described Hydraulic Pump and fuel tank are arranged on described main car frame, and described Hydraulic Pump is connected with the engine installation being arranged on described main car frame; Described hydraulic actuating cylinder, Hydraulic Pump and fuel tank connect into loop by pipeline; On control cock on the enterprising drain pipe of described hydraulic actuating cylinder and the engine installation on Hydraulic Pump, control piece is set, it is connected to described main car frame rear end;

Two parts that can be movable relatively described in described hydraulic actuating cylinder are hydraulic actuating cylinder and piston, and the connection structure of itself and described main car frame and lifting vehicle frame is:

One end of described hydraulic actuating cylinder cylinder head is hinged on described main car frame, and wherein one end of piston rod and described lifting vehicle frame are hinged; Or one end of described hydraulic actuating cylinder cylinder head is hinged on described main car frame, the wherein hinged lift arm in one end of piston rod, one end of this lift arm and described main car frame are hinged, and its other end is placed in the longitudinal slide rail arranging on described lifting vehicle frame; Or one end of described hydraulic actuating cylinder cylinder head is hinged on described main car frame, the wherein hinged slide block in one end of piston rod, this slide block is placed in the longitudinal slide rail arranging on described lifting vehicle frame; Or,

Described lifting mechanism is an electric push rod, and described two parts that can be movable relatively are cylinder barrel and the screw rod being mutually spirally connected, and described cylinder barrel wherein and the termination of screw rod be hinged described main car frame and lifting vehicle frame respectively; Or one of them is hinged on described main car frame, another is arranged in the longitudinal slide rail arranging on described lifting vehicle frame; Or,

Described lifting mechanism is a folding lever formula jack, described two parts that can be movable relatively are folded piece and leading screw, described leading screw is located on a pair of interface point that folded piece is relative, affixed with one of them interface point, be spirally connected with another hinge-point, the two ends of described folded piece are hinged on respectively on described main car frame and lifting vehicle frame, or one end is hinged on main car frame, and the other end is arranged in the longitudinal slide rail of one on lifting vehicle frame.

Described engine installation in described hydraulic efficiency gear, is the described engine installation of described drive wheel connection, or, be the engine installation arranging separately.

Concrete, in the time that described engine installation is motor, connect the engine installation of the driving part in two parts in described lifting mechanism, for example in described hydraulic efficiency gear, the described engine installation of Hydraulic Pump is another motor, the storage battery of its connection is same with the storage battery that connects driving wheel motor, the output shaft of this motor and described Hydraulic Pump connect and compose the power unit of hydraulic gear, in the loop of this motor and storage battery formation, also comprise the electromagnetic distribution valve on two liquid in-out pipes that are arranged on described hydraulic actuating cylinder; These two electromagnetic distribution valves connect a reset switch by lead-in wire, and this reset switch is arranged on described main car frame rear end.

Attaching parts between brake member in described brake anticollision push-pull bar and described braking mechanism is pull bar or flexible cord, one pole of extending to transport trolley front is set on the body of rod of described brake anticollision push-pull bar, and the hinge-point of the body of rod of described attaching parts and described brake anticollision push-pull bar is arranged on this pole.

Described brake anticollision push-pull bar, comprise that two push-and-pulls divide bar, two these push-and-pulls divide the outer end of bar and described main car frame hinged, and on it, be equipped with described hinge-point, described in two, push-and-pull divides between two the inners of bar and leaves gap, be provided with a conjunction at this gap location, it is fixed therein a push-and-pull and divides on bar, and divides bar to form separable connection structure with another push-and-pull.

Described conjunction is a sleeve pipe, it is sheathed is slidably fixed therein a described push-and-pull and divides on bar, and described sleeve pipe and this push-and-pull divide and are provided with pull back spring between bar, the other end of this adapter sleeve is set in push-and-pull described in another and divides on bar, match, described clutch push rod divides bar in described main car frame the same side with the push-and-pull that is fixed with sleeve pipe; Or,

Described conjunction is a half-covering tube of longitudinally cutting open, it be located on the sidewall backwards that a push-and-pull divides bar fixing, one end of this half-covering tube is stretched out one section and is divided bar to fasten overlap joint with push-and-pull described in another, match, described clutch push rod divides bar in described main car frame the same side with the push-and-pull that is fixed with half-covering tube.

Under normal operation, by adapter sleeve, two pull bars are become one, play the crashproof effect of brake.In the time turning, especially road conditions are poor, for example, when uneven, adapter sleeve can be pulled to wherein on part brake anticollision push-pull bar, and the anticollision push-pull bar that makes to brake disconnect, and promote a corresponding pull bar and realize power steering.When turning to after end, unclamp adapter sleeve, brake anticollision push-pull bar becomes one again.

Rear a kind of scheme is more convenient to use, in the time that transport trolley is kept straight on, in the time that needs brake, can pull with hand the push-and-pull that does not set firmly half-covering tube and divide bar, or the push-and-pull that promotes to set firmly half-covering tube divides bar, makes two push-and-pulls divide bar unitary rotation.In the time will turning, pull the push-and-pull that sets firmly half-covering tube to divide bar, or the push-and-pull that promotes not set firmly half-covering tube divide bar, can make two push-and-pulls divide bar to rotate respectively, and realize power steering.

Front end at described lifting vehicle frame is provided with pallet fork, when described lifting vehicle frame is during in the described second place, this pallet fork lands, and pallet fork surface is upward vertical with the loading face of described lifting vehicle frame, and the loading face of described pallet fork and lifting vehicle frame forms the loading portion of this transport trolley; Or,

Surrounding at the described loading face of described lifting vehicle frame arranges side plate, forms the cargo bay of a sealing, and described side plate and the described lifting vehicle frame of the one end landing during in the described second place at it are movable connection structure.

The upper surface of this pallet fork is vertical with the upper surface of described lifting vehicle frame.The loading face of described lifting vehicle frame, when in the described second place, leans forward slightly as good.Preferably 2 °-10 ° of forward leaning angles

Described pallet fork and described lifting vehicle frame are fixed type connection structures; Or,

Described lorry and described lifting vehicle frame are removable fixed connection structure; Or,

Described pallet fork and described lifting vehicle frame are movable connection structure, described pallet fork be arrange respectively at lifting vehicle frame both lateral sides position two move pallet fork, be laterally provided with a slide rail at the front end of described lifting vehicle frame, described mobile pallet fork is arranged in this slide rail movably, between described mobile pallet fork and described lifting vehicle frame, is provided with actuating device.

This actuating device can be the jack mechanism of various structures.

A preferred version that drives the actuating device of mobile pallet fork is a hydraulic efficiency gear,

For example, what this pallet fork was included in that described lifting vehicle frame front end both lateral sides arranges respectively two moves pallet fork, front end at described lifting vehicle frame is laterally provided with a slide rail, described mobile pallet fork is arranged in this slide rail movably, between described mobile pallet fork and described lifting vehicle frame, be provided with hydraulic efficiency gear, the liquid in-out pipe of the hydraulic actuating cylinder in this hydraulic efficiency gear is provided with control cock, in this control cock, lead-in wire is set; Described hydraulic efficiency gear connecting fluid press pump and the actuating unit that drives it.

For example, between described lifting vehicle frame and described mobile pallet fork, be provided with bidirectional hydraulic cylinder assembly, wherein in hydraulic actuating cylinder, be provided with two pistons, on the casing wall between two pistons and the two ends of hydraulic actuating cylinder establish liquid in-out pipe connected pipes, control cock is set on three liquid in-out pipes of this bidirectional hydraulic cylinder assembly and connects, this control cock is electronic or manual, connects control stalk or control line on it, it is connected on the position of described main car frame rear end near handlebar, or is arranged on handlebar.

On described lifting vehicle frame bottom surface, between the front end of described lifting vehicle frame and described front-wheel, a balance wheel is also set or lines up two balance wheels of a line.

Described balance wheel is a directed vibration damping wheel.

When described lifting vehicle frame is during between described primary importance and the second place and closer to the second place, this balance wheel lands.The effect of this balance wheel is, when lifting vehicle frame is holded up in process, the center of gravity reach of car, makes car body shakiness, and afterbody has the trend of perk, and at this moment, balance wheel lands in advance than lifting vehicle frame, can effectively prevent the lean forward danger of overturning of car.Balance wheel can be the constant damping directional wheel of direction.

The structure of described change speed gear box is: one first transmission shaft, a second driving shaft and one the 3rd transmission shaft are wherein set abreast,

Described the first transmission shaft is two sections, one section is connected with engine output shaft, between two sections, connect described power-transfer clutch, a hinged elasticity shift fork on the casing of described change speed gear box, it is pressed against on described power-transfer clutch, on this elasticity shift fork, connect a pole and stretch out change speed gear box, the upper one end that connects a clutch cable of this pole, its other end connects described clutch push rod; On this first transmission shaft, be provided with described speed change slide teeth wheels, on slip cap, be provided with the first gear and the second gear, have a spacing described in two between gear, described speed change slide teeth wheels have three positions on this first transmission shaft; On described slip cap, connect described governor lever; Another section of this first transmission shaft is stretched out change speed gear box becomes the second output shaft, is connected with the input shaft of described Hydraulic Pump;

On described second driving shaft, set firmly the 3rd gear and the 4th gear, one end of this second driving shaft is stretched out change speed gear box and is formed described the first output shaft, this first output shaft connects described transmission shaft and then connects described drive axle, the position of described the 3rd gear and the 4th gear is: corresponding respectively with two locational two gears of described speed change slide teeth wheels respectively, the 3rd position, between the first transmission shaft and second driving shaft, do not have gear to engage;

The described reverse sliding gear group that described the 3rd transmission shaft is provided with is, the 5th gear and the 6th gear are set on slip cap, one retracing spring is set between a shaft shoulder on this slip cap and the 3rd transmission shaft makes this reverse sliding gear group have two positions, balance position and non-equilibrium position, on balance position, on the 3rd transmission shaft, engage with other transmission shaft gearless; In non-equilibrium position, two gears on it engage with a gear on the first transmission shaft and second driving shaft respectively; This slip cap is connected with described reverse gear arm.

Described governor lever on described the first transmission shaft has three gears:

Fast shelves, i.e. the first gear engagement the 3rd gear;

Neutral gear, two described gears on the corresponding described second driving shaft of described spacing;

Slow shelves, i.e. the second gear engagement the 4th gear;

Described reverse gear arm on described the 3rd axle has two positions:

Position one: two described gears on it are in room;

Two: the six gears in position engage the second gear; The 5th gear engagement the 4th gear, and described retracing spring leaves balance position; And/or,

Described change speed gear box is stretched out in one end of described the first transmission shaft, connects the Hydraulic Pump power input shaft in the hydraulic efficiency gear in described lifting mechanism.

Power-driven loading-unloading transport handcart provided by the invention, by small and exquisite at volume, can facilitate on the hand barrow that passes in and out deftly train wagon or transport truck compartment actuating unit is installed, its load-carrying transporting capacity is become several fold to be increased, alleviated carrying personnel labour intensity, improved handling efficiency.Transport trolley provided by the invention, the structure design of lifting vehicle frame wherein, some of bags cargo fitly can be piled up on it, then another pile is neatly deposited in goods yard or compartment, while repeatedly carrying, only need to pile up once by bag first, in the time carrying for the second time or repeatedly, only need to one pile of goods entirety be moved on this transport trolley by pallet fork, then entirety is put down.If lifting Vehicle Frame Design is become to the cargo bay of a sealing, this transport trolley can also be carried bulk freight.In addition, in for hand barrow mechanization transformation, transport trolley provided by the invention also has one's own knack.Common self-propelled vehicle, clutch, speed change, reversing are all that chaufeur carries out in operator's compartment, the trick division of labor.General such as elevator machinery of mechanical type handbarrow is also that chaufeur is sitting in and in driving compartment, presses button and complete.And the operating personal of this transport trolley is wanted walking vehicle handle, like this, the walking, speed change, brake, reversing and the handling goods that how to operate transport trolley will design well.The brake clutch linkage device of this transport trolley design and throttle, speed change, deviator are reasonably arranged on handlebar, can make this transport trolley easy to operate, freely, safety.

Below by drawings and Examples, the present invention is described in detail.

Brief description of the drawings

Fig. 1 is the side-looking structural representation of the power-driven loading-unloading transport handcart taking driving engine as power provided by the invention.

Fig. 2 is that TV structure schematic diagram is looked on a left side of Fig. 1.

Fig. 3 is the structural representation of the transport trolley main car frame rear end shown in Fig. 1.

Fig. 4 is the side-looking structural representation of the power-driven loading-unloading transport handcart taking motor as power provided by the invention.

Fig. 5 is the left TV structure schematic diagram of Fig. 4.

Fig. 6 is the structural representation of the transport trolley main car frame rear end shown in Fig. 4.

Fig. 7 is the sectional structure schematic diagram of a side of a kind of change speed gear box of using in the power-driven loading-unloading transport handcart taking driving engine as power.

The left TV structure schematic diagram of Fig. 8 Fig. 7.

Fig. 9 is the part-structure schematic diagram of the side change speed gear box relative with Fig. 7.

Figure 10 is the I-I sectional structure schematic diagram of Fig. 8.

Figure 11 is the J-J sectional structure structural representation of Fig. 9.

Figure 12 is the structural representation of breakaway-element brake anticollision push-pull bar.

Figure 13 is the side-looking structural representation that shows the power-driven loading-unloading transport handcart of the another kind of connection structure of lifting mechanism between main car frame and lifting vehicle frame.

Figure 14 is the left TV structure schematic diagram of Figure 13.

Figure 15 is the A-A sectional structure schematic diagram of Figure 14.

Detailed description of the invention

Embodiment 1:

As shown in Figure 1, Figure 2 and Figure 3, be a kind of power-driven loading-unloading transport handcart taking driving engine as power, it comprises main car frame 1, lifting vehicle frame 2, a lifting mechanism 3, an engine installation 4:

Described main car frame 1, its top has a bearing surface, and this main car frame bottom is provided with front-wheel 11 and trailing wheel 12, and one of them is drive wheel, and another is cardan wheel, and described drive wheel is two, and described cardan wheel is one or two; In the present embodiment, drive wheel is front-wheel 11, and cardan wheel 12 is two.Both sides, rear end on this main car frame 1 are respectively equipped with handlebar 13a and handlebar 13b, are used for holding for trammer, control the direction of adjusting car; Drive wheel can be also trailing wheel, and front-wheel is cardan wheel.Drive wheel is connected by a transmission device with the engine installation 4 being arranged on main car frame 1.Its connection structure can be:

Described engine installation, comprises a driving engine 4 and connected fuel tank and change speed gear box, is installed on described main car frame 1; The output shaft of described driving engine 4 connects this change speed gear box input shaft, has an output shaft on this change speed gear box.Set firmly a drive axle 6 in the front portion of main car frame, drive axle 6 is prior art, comprise crane span structure body, two-semiaxle, transmission shaft and diff, diff is arranged on crane span structure body, the power intake of diff connects one end of a transmission shaft by a universal-joint, the other end of this transmission shaft connects the described output shaft on change speed gear box.Two drive wheels 11 are rotatably connected to respectively on two semiaxis of drive axle.

Described main car frame 1 is provided with and two braking mechanisms that described drive wheel 11 is corresponding: between the wheel hub of drive wheel and crane span structure body, braking mechanism is set, this braking mechanism is for example the reducible brake facing arranging on each semiaxis and the brake drum arranging on the wheel hub of drive wheel, one brake arm is set on described brake facing and forms brake member, between this brake member and main car frame, retracing spring can be set.

Front end at described main car frame 1 rear end two handlebars is respectively established a jointed shaft 14, by this jointed shaft 14, the two ends of a brake anticollision push-pull bar 15 are hinged on to the rear end of main car frame 1, the horizontal expansion along transport trolley in main car frame 1 rear end of this brake anticollision push-pull bar 15, at the two ends of this brake anticollision push-pull bar 15 to the extended support arm 15a of the front curvature of transport trolley, as shown in Figures 2 and 3.

On described drive axle, have with the one end that is respectively connected a connection piece on two corresponding two described brake members of drive wheel, its other end is hinged on the support arm 15a that extension arranges forward at two ends on described brake anticollision push-pull bar 15, when described brake anticollision push-pull bar is around the hinged jointed shaft 14 of itself and main car frame 1 forward or backward when Double-directional rotary, this brake anticollision push-pull bar 15 drives all motions backward of described brake arm by attaching parts, make to rotate forward or backward described brake anticollision push-pull bar 15, all can implement the brake of drive wheel, very easy to use, safety.Attaching parts can be brake lever 61 or brake flexible cord.

Lifting vehicle frame 2, on it, there is a loading face, it is placed in above main car frame 1, hinged with the front portion of main car frame 1, this articulated structure is: lifting vehicle frame 2 is rotated between following two positions: position one is placed on described main car frame 1 bearing surface for lifting vehicle frame 2 around jointed shaft 21, described loading face up (as shown in the long and two-short dash line in Fig. 1), position two for be erected at described main car frame 1 front end before, loading face is erect and the front end of lifting vehicle frame 2 lands (as shown in solid line lifting vehicle frame in Fig. 1).

Be provided with pallet fork 22 at the front end of lifting vehicle frame 2, when described lifting vehicle frame 2 is during in the described second place, this pallet fork 22 lands, and to be that loading face is vertical with the upper surface of described lifting vehicle frame 2 arrange on this pallet fork 22 surface upward, in the time of position two, described loading face preferably leans forward slightly.Forward leaning angle is preferably 2-10 °.The described surface that the loading face of described lifting vehicle frame 2 is adjacent with described pallet fork 22 forms the loading portion of this transport trolley.

Surrounding at the described loading face of described lifting vehicle frame can arrange side plate, forms the cargo bay of a sealing, and described side plate and the described lifting vehicle frame of the one end landing during in the described second place at it are movable connection structure.Such lifting vehicle frame can be used to carry loose unpacked material.

Described lifting mechanism 3 as shown in Figure 1, it can be a hydraulic efficiency gear, cylinder head one end of hydraulic actuating cylinder wherein is hinged on main car frame 1, the hinged lift arm 31 in one end of piston rod wherein, one end of this lift arm 31 and main car frame 1 are hinged, its other end be arranged on that described lifting vehicle frame 2 upper foreparts arrange one described in longitudinally in slide rail 31a.

In described hydraulic efficiency gear, also comprise Hydraulic Pump and fuel tank, it is all arranged on (not shown) on main car frame 1; In control cock on liquid in-out pipe on this hydraulic actuating cylinder, control stalk is set, it is connected to described main car frame 1 rear end.Hydraulic Pump is connected with engine installation, and this engine installation can be the driving engine that connects drive wheel, can be also other actuating unit.In the present embodiment, the input shaft of Hydraulic Pump is connected with described driving engine, concrete, is to be connected with the described change speed gear box of connecting engine to obtain power, during concrete connection structure sees below the structure of described change speed gear box is described.

The connection structure of lifting mechanism and main car frame 1 and lifting vehicle frame 2 can also be a kind of fairly simple structure.Hydraulic Pump and fuel tank are still similarly arranged on main car frame 1, as shown in Figure 13 to 15, in the lower, transverse direction of lifting vehicle frame 2, set firmly two V font sub-stents 20, the two ends that each sub-stent 20 1 sides are separated are fixed on lifting vehicle frame 2, and one end that its opposite side converges is hinged on main car frame 1.This articulated structure can be that, using two semiaxis on drive axle as jointed shaft, one end of converging of sub-stent 20 is hinged on (as shown in figure 13) on semiaxis.Also can be as shown in figure 15, connect a connection piece 201 on each semiaxis, this attaching parts 201 connects firmly on semiaxis, and this sub-stent 20 is hinged on attaching parts 201 by jointed shaft 202.The cylinder head of the hydraulic actuating cylinder in lifting mechanism 3 is hinged on main car frame 1, and wherein the termination of piston rod is hinged on lifting vehicle frame 2.Piston linear motion in hydraulic actuating cylinder, promotes lifting vehicle frame 2 and rotates with respect to main car frame around jointed shaft 202.This connection structure, without install longitudinal slide rail on lifting vehicle frame, structure is simpler.In addition, compared with the structure shown in Fig. 1, the hinge-point of Figure 13 and the lifting vehicle frame shown in Figure 15 and the articulated structure of main car frame is relative more rely on main car frame after, after hinge-point, move, make lifting vehicle frame with respect to main car frame rotation process in, can be more steady, especially in the time filling goods on lifting vehicle frame and be positioned at erection position, transport trolley rear portion is difficult for perk, safer.

Described lifting mechanism can be also non-hydraulic efficiency gear, for example, can be electric screw lifting push rod, substitutes aforesaid hydraulic efficiency gear with it.One end of cylinder barrel wherein is hinged on main car frame 1, and one end of screw rod is hinged on lifting vehicle frame.Again for example, can also be the mechanism such as various rack-jacks, spiral (machinery) jack.

The various connection structures of hydraulic actuating cylinder and piston and main car frame, lifting vehicle frame can be applicable to various jacks.

The power of above-mentioned electric screw lifting push rod and various jacks can be manual, can be on tumbler connecting handle, manual lifting plays lifting vehicle frame, also can on revolving part, directly or by transmission device connect a motor or connect the described driving engine that drives transport trolley walking.One transmission shaft for example, is set on the change speed gear box that driving engine connects to be connected with it and to obtain power.

The example of the lifting mechanism of two non-hydraulic efficiency gear below:

Described lifting mechanism is an electric push rod, and described two parts that can be movable relatively are cylinder barrel and the screw rod being mutually spirally connected, and described cylinder barrel wherein and the termination of screw rod be hinged described main car frame and lifting vehicle frame respectively; Or one of them is hinged on described main car frame, another is arranged in the longitudinal slide rail arranging on described lifting vehicle frame.

As Fig. 7 to Figure 11 and Figure 3 shows that the walking of driving transport trolley in the present embodiment as described in be connected with driving engine in engine installation as described in the structure of change speed gear box, and on this change speed gear box, be also provided with and be connected the structure that drives lifting mechanism with lifting mechanism.Concrete structure is as follows:

One first transmission shaft 110, a second driving shaft 120 and one the 3rd transmission shaft 130 are set abreast in the casing 100 of change speed gear box,

(1) structure on described the first transmission shaft 110:

Described the first transmission shaft 110 is two sections, and wherein one section is connected with engine output shaft.Between these two sections, connect power-transfer clutch 111, in the interior hinged elastomeric clutch yoke 112 of described gear box 100, under resilient force, be pressed against on described power-transfer clutch 111, the jointed shaft of this clutch yoke 112 stretches out gearbox body 100, on it, connect a clutch rocking arm 113, on clutch rocking arm 113, connect one end of a clutch cable 111a, its other end connects a clutch push rod 111b(as shown in Figure 3), this clutch push rod 111b is hinged on main car frame 1 rear end, near the front end of right side handlebar 13a.Move clutch push rod 111b, just can make the first transmission shaft 110 separate with the output shaft of driving engine, loosen the clutch rocking arm 111b makes power-transfer clutch 111 in conjunction with transferring power under resilient force.This clutch push rod 111b be positioned at brake anticollision push-pull bar 15 before, on its track rotating forward at brake anticollision push-pull bar 15.In the time that the anticollision push-pull bar 15 that promotes forward to brake brakes, just can push promotion clutch push rod 111b rotates around jointed shaft, can make power-transfer clutch 111 overcome elastic resistance disconnects, in the time of releasing of brake anticollision push-pull bar 15, this clutch push rod around its jointed shaft revolution, makes power-transfer clutch combination again under resilient force.

The interlock of this clutch push rod and brake anticollision push-pull bar designs, and can fully ensure the use safety of this transport trolley.In the time of brake; cut-off clutch simultaneously; according to the control structure of common self-propelled vehicle; parking will touch on the brake simultaneously and move clutch handle, with in one's hands and pin two aspect concerted actions, but this transport trolley; two holds handlebars of operating personal; if car reversing time is met people, two actions that such using both hands and feet allows car stop immediately, are just difficult to accomplish both hands manipulation in the situation that at this transport trolley substantially.And the linkage structure of the clutch push rod of the present invention's design and brake anticollision push-pull bar, make this transport trolley in the time there is above-mentioned situation, along the extended first operating of contacts person of brake anticollision push-pull bar of the Width of main car frame 1, it is rotated forward, tractive brake arm can be implemented brake, the anticollision push-pull bar rotation forward of simultaneously braking is also rotated clutch push rod, can cut-off clutch, and car can stop immediately.In this process, operator's both hands can still be held handlebar and not unclamp to hold direction.After car stops, just can vacate hand, or cut off driving engine, or get out of the way brake anticollision push-pull bar and pushing away clutch push rod and keep halted state by car; Also can adjust gear, make car in neutral state.

One end of the first transmission shaft 110 is stretched out gearbox body 100 and is formed the second output shaft, is connected with the input shaft of described Hydraulic Pump, power is provided to the Hydraulic Pump in lifting mechanism.

On this first transmission shaft 110, be provided with speed change slide teeth wheels, on slip cap, be provided with the first less gear 110a and the second larger gear 110b, described in two, between gear, have a spacing, described speed change slide teeth wheels have three positions on this first transmission shaft; On described slip cap, connect a governor lever 115.Cylinder lever connecting rod 115a on this governor lever 115, the extended rear end to main car frame 1 of this pull bar 115a, is connected with a speed change pull bar 115b who is arranged on main car frame 1 middle part, rear end.Handle this speed change pull bar 115b, the speed change slide teeth wheels that can be change between described three positions.

(2) structure on described second driving shaft 120:

One end of this second driving shaft 120 is stretched out change speed gear box 100 and is formed described the first output shaft, and this first output shaft connects described transmission shaft and then connects described drive axle 6.On second driving shaft 120, set firmly the 3rd larger gear 120a and the 4th less gear 120b, the position of described the 3rd gear 120a and the 4th gear 120b is: should engage in a gear mesh of the above speed change slide teeth wheels of two positions of described three positions with speed change slide teeth wheels on the first transmission shaft respectively, form quick gear and gear at a slow speed, in the 3rd position of speed change cliding gear, between the first transmission shaft and second driving shaft, do not have gear to engage, form neutral gear.By push-and-pull speed change pull bar 115b, can make second driving shaft 120 the first output shaft in following three gears:

Slow shelves, i.e. the first gear engagement the 3rd gear;

Fast shelves, i.e. the second gear engagement the 4th gear;

Be the gait of march of this transport trolley of capable of regulating thus.

Second driving shaft i.e. the first output shaft is that a driving transmission shaft is connected with drive axle by a transmission device, at the axle head that stretches out change speed gear box 100 of second driving shaft, one finishing bevel gear cuter 120c is set, its finishing bevel gear cuter being installed with on it with one on the axle of two finishing bevel gear cuters engages (not shown), another finishing bevel gear cuter engagement on this axle is arranged on the finishing bevel gear cuter (not shown) on described driving transmission shaft, then by transmission of power to drive axle, and can provide applicable transmission direction.

(3) structure on described the 3rd transmission shaft 130:

As shown in figure 10, the reverse sliding gear group that described the 3rd transmission shaft 130 is provided with is, comprise a slip cap, be set on the 3rd transmission shaft 130, the 5th gear 130a and the 6th gear 130b are set on this slip cap, a retracing spring 130c are set between a shaft shoulder on this slip cap and the 3rd transmission shaft and make this reverse sliding gear group there are two positions, balance position and non-equilibrium position, on balance position, the 3rd transmission shaft 130 engages with other transmission shaft gearless; In non-equilibrium position, two gears on it engage with a gear on the first transmission shaft and second driving shaft respectively, that is: the 6th gear 130b engages the second gear 110b on the first transmission shaft 110, and the 4th gear 120b and described retracing spring on the 5th gear 130a engagement second driving shaft 120 are opened balance position from 130c.Thus, can make i.e. the first output shaft switched in opposite of second driving shaft, implement reversing.

As shown in figure 11, in change speed gear box, with the 3rd transmission shaft 130 be that reverse gear slide teeth wheels on reverse gear shaft are provided with accordingly an axle 130d-1 and form reverse gear rocking arm, on this reverse gear rocking arm, establish a reverse speed fork 132, on the 3rd transmission shaft 130, be provided with a reverse gear push-plate 130d and be against on reverse gear slide teeth wheels, reverse speed fork is pressed against on reverse gear push-plate 130d.On reverse gear arm, connect one end of a reverse gear bracing wire 130e, its other end is fixed on the upper (see figure 3) of a reverse gear handle 130f, and this reverse gear handle 130f is hinged on left handlebar 13b.In the time will moveing backward, first speed change pull bar 115b is placed on neutral gear position, then handle reverse gear spanner 130f.

As shown in Figure 3, the acceleration cable of described driving engine 4 connects a throttle control handle 41a who is arranged on described main car frame rear end by a flexible cord 41.

On driving engine, establish ignition lock, ignition lock connects starter motor, and starter motor connects the storage battery being arranged on main car frame, or, on driving engine, connect and start rocking arm, by manual cranking driving engine.

Described the first transmission shaft 110 i.e. the second output shaft is connected with the input shaft of the described Hydraulic Pump in lifting mechanism, Hydraulic Pump connecting fluid cylinder pressure, liquid in-out pipe connected pipes on hydraulic actuating cylinder, connects respectively a control cock on this liquid in-out pipe, and the control piece of this control cock connects a control stalk 31.In instantiation, can on the output oil pipe of Hydraulic Pump, establish a hydraulic distributing valve, distribution pull bar wherein connects described control stalk 31.As shown in Figure 3, this control stalk 31 is extended to the framework of main car frame rear end, it connects an actuator, this actuator can be manual or foot-propelled drive form, and as shown in Figure 3, actuator is two pedal 31a, 31b that arrange on control stalk 31 to an instantiation, by stepping on the pedal on different directions, can make control stalk 31 rotate to different directions, thereby realize the action of two hydraulic distributing valves, thus realize lifting vehicle frame lifting, stop and falling.Actuator can be also button, implements the action of lifting vehicle frame by adjusting button.

Described brake anticollision push-pull bar 15 can also be to separate, become two push-and-pulls and divide bar 151 and 152, two these push-and-pulls divide the termination, outside of bar and described main car frame 1 hinged as previously mentioned, between two termination, inner side, leave a gap, be provided with a conjunction at this gap location, it is fixed therein a push-and-pull and divides on bar, and divides bar to form separable connection structure with another push-and-pull.

Described conjunction can be a set of pipe, its one end slidably sheathed be fixed on that a described push-and-pull divides on bar and and this push-and-pull divide between bar and be provided with pull back spring, make sleeve pipe to divide and on bar, slide and can reset in this push-and-pull.The other end of this pipe box is set in push-and-pull described in another and divides on bar.Sleeve pipe resistance pull back spring slides, and can depart from another push-and-pull and divide bar.

Under normal operation, by sleeve pipe, two pull bars are become one, play the crashproof effect of brake.In the time turning, especially road conditions are poor, for example, when uneven, sleeve pipe can be revolted to pull back spring and pull to a wherein push-and-pull and divide on bar, depart from another push-and-pull and divide bar, the anticollision push-pull bar that makes to brake is therefrom separated, promotes a corresponding push-and-pull and divides bar to make this side drive wheel brake, get final product power steering, realize easily turning to of this transport trolley.When turning to after end, unclamp push-and-pull and divide bar, remove one-sided brake, and then unclamp sleeve pipe, make its again with a thruster pull bar fit of throwing off, brake anticollision push-pull bar becomes one again.Match, described clutch push rod divides bar in described main car frame the same side with the push-and-pull that is fixed with sleeve pipe.

Described conjunction can also be a half-covering tube of longitudinally cutting open 153, as shown in figure 12, it be located in the push-and-pull of clutch push rod homonymy and divides on bar, a push-and-pull that be located in the present embodiment right side divides on the sidewall backwards of bar 151 fixing, and one end is stretched out one section and divided bar 152 to fasten overlap joint with another push-and-pull.Right side push-and-pull divides the length of bar 151 preferably will be longer than left side push-and-pull and divides bar.

In use, if in normally travelling backward forward, operator's walking vehicle handle, while stopping, promotes forward right side push-and-pull and divides bar 151, and drive clutch push rod 111b when braking, and car is stopped.In the time of reversing, when car is met operator, because right side push-and-pull divides bar 151 longer, normally can encounter right side push-and-pull and divide bar 151, realize brake clutch-linkage, car also can stop.While not wanting cut-off clutch if need brake deceleration in traveling process, pull back left side push-and-pull and divide bar 152.In the time wanting car to bend to right, pull right side push-and-pull to divide bar 151, in the time wanting car to turn left, promote left side push-and-pull and divide bar 152, realize power steering.

Unbalance when the lifting of lifting vehicle frame in order to prevent this transport trolley, as shown in Figure 1, on described lifting vehicle frame 2 bottom surfaces, between its front end and front-wheel 11, be also provided with balance wheel 23.Between described balance wheel 23 and described lifting vehicle frame, be provided with damper spring.It is the tight pulley of a fixed-direction, holds up while approaching upright position when lifting vehicle frame 2, and this balance wheel lands, and in the time that the front end of lifting vehicle frame 2 lands, it is unsettled that this balance wheel is liftoff.

Described pallet fork and described lifting vehicle frame can be fixed type connection structures.Also can be removable fixed type connection structure.

A kind of prioritization scheme of pallet fork is: described pallet fork be arrange respectively at lifting vehicle frame both lateral sides position two move pallet fork, be laterally provided with a slide rail at the front end of described lifting vehicle frame, described mobile pallet fork is arranged in this slide rail movably, between described mobile pallet fork and described lifting vehicle frame, is provided with actuating device.

This actuating device can be the jack mechanism of various structures.

A preferred version that drives the actuating device of mobile pallet fork is a hydraulic efficiency gear, and one end of hydraulic actuating cylinder wherein is connected on lifting vehicle frame, and the other end is connected on described mobile pallet fork, and hydraulic actuating cylinder action can make two described mobile pallet forks separately or close up; Hydraulic Pump in described hydraulic efficiency gear is connected with described actuating unit 4, or with one independently actuating unit connect and compose independently hydraulic efficiency pressure system, the hydraulic circuit of the hydraulic efficiency gear of the lifting mechanism 3 that preferably this hydraulic efficiency gear drives with described actuating unit 4 is connected.This moves in the hydraulic efficiency pressure system of pallet fork and is provided with control cock, in this control cock, lead-in wire is set, and is connected to described main car frame rear end.This control cock can be also electromagnetic distribution valve.

The hydraulic efficiency gear being provided with between described lifting vehicle frame and described mobile pallet fork can be bidirectional hydraulic cylinder assembly, wherein in hydraulic actuating cylinder, be provided with two pistons, on the casing wall between two pistons and the two ends of hydraulic actuating cylinder establish liquid in-out pipe connected pipes, on the liquid in-out pipe of this bidirectional hydraulic cylinder assembly, control cock is set, this control cock is electronic or manual, on it, connect control stalk or control line, it is connected on the position of described main car frame rear end near handlebar.

The actuating unit of this actuating device can be the motor being attached thereto or be connected with the engine installation that drives the walking of this transport trolley by transmission device.

This transversely movable Telescopic goods fork; can make pallet fork be inserted under goods from the both sides of for example bag cargo; more can effectively protect under goods goods can in handling process, not be subject to the damage of pallet fork compared with inserting between therefrom like this, reduce the breakage rate of goods.Can directly by Telescopic goods fork, the one-tenth buttress goods that is placed on goods yard be forked once, reduce the work that manpower repeats to pile up, raise labour efficiency.

Embodiment 2:

In the present embodiment, most of structure is identical with embodiment 1, and difference is just that engine installation motor substitutes driving engine.

As shown in Figure 4,5, 6, described engine installation comprises motor 7, electric machine controller 71, three condition switch 71b, governor handle 71a and storage battery 70, described storage battery 70, electric machine controller 71 and motor 7 are installed on described main car frame 1, this three condition switch 71b is arranged on main car frame 1 rear end near handle 13a place, right side, and described governor handle 71a is arranged on the handle 13a of main car frame 1 rear end; The two ends of described three condition switch 71b are connected with the motor status control end of described electric machine controller 71 by wire 71b ', the forward of control motor, stop, reversing; The signal output part of described governor handle 71a is connected with the speed governing port of described electric machine controller 71 by wire 71a ', controls the rotating speed of motor.

Can also be provided with a BK Brake Switch, the rear end that it is arranged on main car frame 1, is positioned at (not shown) on the track that brake anticollision push-pull bar 15 rotates forward, and it is to knock this BK Brake Switch down that the anticollision push-pull bar 15 that makes to brake rotates forward.The two ends of this BK Brake Switch are connected with the BK Brake Switch port on electric machine controller 71 by wire.Transport trolley retreats and forwards trammer to, presses this BK Brake Switch by brake anticollision push-pull bar, motor 7 stalls that drive wheel is connected, and car is checked simultaneously.If not this BK Brake Switch, when car retreats, unclamps governor handle, also can make motor stalling.For safer consideration, this BK Brake Switch can also be arranged on the main car frame 1 of front and back of brake anticollision push-pull bar 15 simultaneously, and the anticollision push-pull bar that makes to brake rotates forward or backward and can both contact BK Brake Switch.

This BK Brake Switch is connected with the motor status control end of described electric machine controller by wire.

Described controller 71 and motor 7 are the large safe three generations's brushless motor that uses dynamo-electric Co., Ltd of the large Thailand in Taizhou plain to produce in the present embodiment, and brushless differential speed motor and supporting controller thereof, be existing mature technology, and concrete control circuit repeats no more.The main supply switch 71c in loop is arranged on the framework of main car frame 1 rear end.

Motor 70 with the connection structure of drive axle can be, on the output shaft of motor 70 with on being connected the transmission shaft of drive axle, a sprocket wheel is respectively set, and on two sprocket wheels, establishes chain.

In the present embodiment, lifting mechanism between lifting vehicle frame 2 and main car frame 1 is illustrated in figure 4 a hydraulic efficiency gear 3, Hydraulic Pump wherein connects an independently motor, this is motor independently, the storage battery of its connection is same with the storage battery that connects driving wheel motor, the output shaft of this motor and described Hydraulic Pump connect and compose the power unit of hydraulic gear, in the loop of this motor and storage battery formation, also comprise the electromagnetic distribution valve on two liquid in-out pipes that are arranged on described hydraulic actuating cylinder; These two electromagnetic distribution valves connect a reset switch by lead-in wire, and this reset switch is arranged on described main car frame rear end.Concrete, this motor connects described storage battery 70.On this hydraulic efficiency gear 3, connect electromagnetic distribution valve, this electromagnetic distribution valve line 74a connects master cock also referred to as direct-reverse switch 74, and this direct-reverse switch 74 is fixed to main car frame 1 rear end.

The hydraulic efficiency gear of lifting mechanism similarly to Example 1, also can be replaced with other straight-line motion mechanism for example various jacks etc.

The engine installation that lifting mechanism connects, except a motor is set separately, also can share with the motor that drives transport trolley walking.Connection for transmission mechanism therebetween.

The object lesson sharing with the motor that is connected drive axle can be: the output shaft of motor 7 is provided with slide teeth wheels, in addition, two axles are set on mainframe, one gear is set respectively on it, mobile these slide teeth wheels, can make it engage with the gear on two axles respectively, these two axles connect with the transmission device that connects lifting mechanism with the transmission shaft that is connected drive axle respectively.Slide teeth wheels are provided with a joystick, and it is connected to main car frame rear end by line or connecting rod, so that handle.Like this, just realize and used a motor to drive the walking of transport trolley and two functions of the lifting of lifting vehicle frame.While travelling, slide teeth wheels move to the position of being combined with transmission shaft.Lifting mechanism is failure to actuate this moment.When the lifting of lifting vehicle frame, slide teeth wheels move to the position of being combined with lifting mechanism, and car is not walked about.

Pallet fork on lifting vehicle frame can be fixed, also can be portable, control cock on liquid in-out pipe on hydraulic efficiency gear between pallet fork and lifting vehicle frame can be also electromagnetic distribution valve, and the master cock of this electromagnetic distribution valve is connected to main car frame rear end (not shown).

Pallet fork 22 ' in the present embodiment on lifting vehicle frame 2 is stationary structure.

As this transport trolley taking motor as power, the convenient safety that operates, it is arranged on speed change and power-off on a gear change hand lever, stop, and only need unclamp this gear change hand lever.Brake can be with the hand that unclamps a handlebar, and the anticollision push-pull bar that pulls or promote to brake, also can promote this pull bar with health, very convenient.

In a word, the present invention is the suitable transport trolley in van-type train or the on-the-spot use of containerized shipment automobile handling, owing to being power driven, has alleviated labour intensity, owing to being hand steered manipulation, has kept the nimble of hand truck.Main car frame is wherein connect full car and bear the framing member of various strength, and the drive axle on main car frame and the drive wheel of connection thereof and cardan wheel support the weight of this transport trolley and make its walking.The direct lade of lifting vehicle frame, and can there is into the function that buttress overturns and adjusts center of gravity.It realizes its function by lifting mechanism.Pallet fork on lifting vehicle frame, except fixed type, can also be transversely movable structure.If subsidiary fixed side forms enclosure space on lifting vehicle frame, can also transport bulk goods.

Claims

1. a power-driven loading-unloading transport handcart, is characterized in that, comprises main car frame, brake anticollision push-pull bar, lifting vehicle frame and a lifting mechanism;

The connection structure of described drive wheel and described main car frame is: a drive axle is set on described main car frame, it comprises a crane span structure body, on crane span structure body, diff is set, the power intake of one transmission shaft connected with differential, two clutch ends of two-semiaxle connected with differential, described transmission shaft connects described engine installation, on two-semiaxle, set firmly two respectively described in drive wheel, between described crane span structure body and drive wheel, described brake member is set;

Described lifting mechanism, it comprises two parts that interconnect and can be movable relatively, wherein parts are located on described main car frame, another parts connect described lifting vehicle frame, described lifting vehicle frame is rotated between described two positions around described jointed shaft, this lifting mechanism connects lifting power device or connects hand gear, drives the described relative motion of these two parts;

Described engine installation comprises a motor and connected storage battery, and it is all installed on described main car frame; The output shaft of described motor is connected with two described drive wheels by transmission device;

In the time that described engine installation is motor, described engine installation comprises motor, electric machine controller, three condition switch, governor handle and storage battery, described storage battery, electric machine controller and electrical motor are installed on described main car frame, this three condition switch is arranged on main car frame rear end, and described governor handle is arranged on the handle of main car frame rear end; The two ends of described three condition switch are connected with the motor status control end of described electric machine controller by wire, control motor forward, stop, reversing; The signal output part of described governor handle is connected with the speed governing port of described electric machine controller by wire, controls the rotating speed of motor;

2. power-driven loading-unloading transport handcart according to claim 1, it is characterized in that, described lifting mechanism, it is a hydraulic efficiency gear, comprise hydraulic actuating cylinder, Hydraulic Pump and fuel tank, described Hydraulic Pump and fuel tank are arranged on described main car frame, and described Hydraulic Pump is connected with the engine installation being arranged on described main car frame; Described hydraulic actuating cylinder, Hydraulic Pump and fuel tank connect into loop by pipeline; On control cock on the enterprising drain pipe of described hydraulic actuating cylinder and the engine installation on Hydraulic Pump, control piece is set, it is connected to described main car frame rear end;

Two parts that can be movable relatively described in described hydraulic actuating cylinder are hydraulic actuating cylinder cylinder head and piston, and the connection structure of itself and described main car frame and lifting vehicle frame is:

One end of described hydraulic actuating cylinder cylinder head is hinged on described main car frame, and one end of the piston rod on wherein said piston and described lifting vehicle frame are hinged; Or, one end of described hydraulic actuating cylinder cylinder head is hinged on described main car frame, the hinged lift arm in one end of the piston rod on wherein said piston, one end of this lift arm and described main car frame are hinged, and its other end is placed in the longitudinal slide rail arranging on described lifting vehicle frame; Or one end of described hydraulic actuating cylinder cylinder head is hinged on described main car frame, the hinged slide block in one end of the piston rod on wherein said piston, this slide block is placed in the longitudinal slide rail arranging on described lifting vehicle frame; Or,

Described lifting mechanism is a folding lever formula jack, described two parts that can be movable relatively are folded piece and leading screw, described leading screw is located on a pair of hinge-point that folded piece is relative, affixed with one of them hinge-point, be spirally connected with another hinge-point, the two ends of described folded piece are hinged on respectively on described main car frame and lifting vehicle frame, or one end is hinged on main car frame, and the other end is arranged in the longitudinal slide rail of one on lifting vehicle frame.

3. power-driven loading-unloading transport handcart according to claim 1, it is characterized in that, attaching parts between brake member in described brake anticollision push-pull bar and described braking mechanism is pull bar or flexible cord, one pole of extending to transport trolley front is set on the body of rod of described brake anticollision push-pull bar, and the hinge-point of the body of rod of described attaching parts and described brake anticollision push-pull bar is arranged on this pole.

4. according to the power-driven loading-unloading transport handcart described in claim 1 or 3, it is characterized in that, described brake anticollision push-pull bar, comprise that two push-and-pulls divide bar, two these push-and-pulls divide the outer end of bar and described main car frame hinged, and on it, be equipped with described hinge-point, described in two, push-and-pull divides between two the inners of bar and leaves gap, be provided with a conjunction at this gap location, it is fixed therein a push-and-pull and divides on bar, and divides bar to form separable connection structure with another push-and-pull.

5. power-driven loading-unloading transport handcart according to claim 4, it is characterized in that, described conjunction is a sleeve pipe, it is sheathed is slidably fixed therein a described push-and-pull and divides on bar, and described sleeve pipe and this push-and-pull divide and are provided with pull back spring between bar, the other end of this sleeve pipe is set in push-and-pull described in another and divides on bar, ground matches, in the time that described engine installation is driving engine, in transmission device between the output shaft of described driving engine and described drive wheel, be provided with a power-transfer clutch, at the hinged clutch push rod in the rear end of described main car frame, this clutch push rod is connected with the clutch arm on described power-transfer clutch by attaching parts, described clutch push rod divides bar in described main car frame the same side with the push-and-pull that is fixed with sleeve pipe, or,

6. power-driven loading-unloading transport handcart according to claim 1, it is characterized in that, front end at described lifting vehicle frame is provided with pallet fork, when described lifting vehicle frame is during in described position two, this pallet fork lands, pallet fork surface is upward vertical with the loading face of described lifting vehicle frame, and the loading face of described pallet fork and lifting vehicle frame forms the loading portion of this transport trolley; Or,

Surrounding at the described loading face of described lifting vehicle frame arranges side plate, forms the cargo bay of a sealing, and described side plate and the described lifting vehicle frame of the one end landing during in described position two at it are movable connection structure.

7. power-driven loading-unloading transport handcart according to claim 6, is characterized in that, described pallet fork and described lifting vehicle frame are fixed type connection structures; Or,

Described pallet fork and described lifting vehicle frame are removable fixed connection structure; Or,