CN105946936B - Labor-saving handcart - Google Patents

Abstract

The invention discloses a kind of Labor-saving handcart, including chassis assembly and vehicle wheel component.Chassis assembly includes article carrying platform and hand push frame.Hand push frame is fixedly installed on article carrying platform.Its main points is：Also include transmission component.Vehicle wheel component includes two driving wheels and two driven pulleys.Transmission component includes gear-box, vertical-transmission component, horizontal transmission component and rocker arm assembly.It is amplified after by rocker arm assembly, power is inputted after gear-box, vertical-transmission component and horizontal transmission component, it is relatively labor-saving during use, Labor-saving handcart climbing is also beneficial to, manpower is greatly saved, improves operating efficiency.

Description

Labor-saving handcart

Technical field

The present invention relates to delivery vehicle field, specially a kind of relatively labor-saving trolley when transporting goods.

Background technology

Trolley is that modern logistics carry industry and the indispensable of manufacturing enterprise carries sharp weapon, is common tool car, extensively For the various enterprises and institutions such as supermarket, food, electronics, medicine, the links of whole supply chain are almost covered, save people Power, cost is reduced, improve efficiency.

Trolley, in occupation of very important status, is carried link with all trades and professions logistics and seemed day in industry is carried Important and goods carrying amount the increase of benefit, the quantity of trolley also can be more and more.Trolley of hauling goods uses field in different There is different styles, but be all in general big with memory space, the sky for the purpose of convenient for people's lives and work Between using flexible, handling goods speed is fast, it is simple to operate the features such as.

The trolley generally used in manpower transport at present, when loading capacity is larger or climbs, stroller person is then very hard Painstakingly, other people have to be now sought help to pull together to push away（Draw）Car goes up a slope, or to make to push the car amplitude that swings to full capacity larger "the" shape route in the hope of laborsaving, it is not very convenient after all to seek help from other people, walking "the" shape route then needs wider road surface, and And motion gets up to often interfere with other vehicles and pedestrian.

The content of the invention

It is an object of the invention to provide a kind of simple in construction, relatively labor-saving trolley during use.

Realizing the basic technical scheme of the object of the invention is:A kind of Labor-saving handcart, including chassis assembly and wheel group Part.Chassis assembly includes article carrying platform and hand push frame.Hand push frame is fixedly installed on article carrying platform.It is structurally characterized in that：Also wrap Include transmission component.Vehicle wheel component includes two driving wheels and two driven pulleys.Two driven pulleys use universal wheel.Two driven Wheel is respectively fixedly disposed on article carrying platform lower lateral front left and right ends.Transmission component includes gear-box, vertical-transmission component, water Flat transmission component and rocker arm assembly.Gear-box includes rear bearing block and bevel pinion shaft.Rear bearing block is fixedly installed on hand push frame On top.Bevel pinion shaft is rotatably arranged on rear bearing block by corresponding bearing, and its axis is along front and rear to horizontally disposed, circle The conical gear portion of bevel gear shaft is located at the front side of rear bearing block.Vertical-transmission component include top chock, vertical drive shaft, on Portion's conical gear, lower cone gear and step.Top chock is fixedly installed on hand push frame top.Step is fixed It is arranged on article carrying platform.Vertical drive shaft is by the bearing that is arranged on accordingly in top chock and is arranged in step Bearing vertical be rotatably arranged on top chock and step.Upper cone gear drive is arranged on the upper of vertical drive shaft On end, and it is meshed with the conical gear portion of bevel pinion shaft, the conical gear portion of upper cone gear and bevel pinion shaft Gear ratio is 1:1.Lower cone gear drive is arranged on the lower end of vertical drive shaft.Lower cone gear and upper cone tooth The gear ratio of wheel is 1:1.Horizontal transmission component includes horizontal drive shaft and lower cone gear wheel.Horizontal drive shaft passes through corresponding Bearing and bearing block along left and right to horizontally rotate set, and positioned at article carrying platform rear underside.Lower cone gear wheel passes It is dynamic to be arranged on the middle part of horizontal drive shaft, and be meshed with the lower cone gear of vertical-transmission component.Lower cone gear Gear ratio with lower cone gear wheel is 1:2.2 driving wheels of vehicle wheel component are driven the left side for being arranged on horizontal drive shaft respectively Right both ends.Rocker arm assembly is detachably driven the rear end for being arranged on bevel pinion shaft.

Technical scheme based on above-mentioned basic technical scheme is：The rear end of bevel pinion shaft is provided with the first square connection Portion.Second square connecting portion of the rear end of first gear axle is provided with steel ball positioning component.Rocker arm assembly includes rocking arm extension bar and shaken .Rocking arm extension bar lower end is provided with connection square hole, and the steel ball positioning component phase with the rear end of bevel pinion shaft is provided with connection square hole The inside annular groove that is open of cooperation, for preventing rocking arm extension bar from axially coming off, after rocking arm extension bar is enclosed on bevel pinion shaft On end, the annular groove in the connection square hole of rocking arm extension bar is formed with steel ball positioning component to be engaged by clamping.Rocking arm extension bar from it is upper it Under be sequentially provided with 2-4 connecting screw hole, crank, which screws, to be fixedly installed on corresponding connecting screw hole.

Technical scheme based on above-mentioned appropriate technical solution is：Transmission component also includes first gear axle, the second tooth Wheel shaft, first gear, second gear and transition gear.First gear is arranged on conical gear by the transmission of corresponding transmission flat key On the rear portion of axle, and positioned at the rear side of rear bearing block.The front portion of first gear axle is rotatably arranged on rear axle by corresponding bearing In bearing, its axis is along front and rear to horizontally disposed.The rear end of first gear axle is provided with corresponding steel ball positioning component.Second gear It is arranged on by the transmission of corresponding transmission flat key on the rear portion of first gear axle.The front portion of second gear axle passes through corresponding bearing It is rotatably arranged on rear bearing block, its axis is along front and rear to horizontally disposed.Transition gear is set by the transmission of corresponding transmission flat key Put on the rear portion of second gear axle.Transition gear is meshed with first gear, and the gear ratio of transition gear and first gear is 2:1.Second gear is meshed with transition gear, and the gear ratio of second gear and transition gear is 34:35.

Technical scheme based on above-mentioned appropriate technical solution is：Article carrying platform includes border component and bottom plate.Frame Component includes preceding whippletree, left connection thick stick, rear whippletree and right connection thick stick.Preceding whippletree, left connection thick stick, rear whippletree and right connection thick stick are adopted With equal leg angle, preceding whippletree, left connection thick stick, rear whippletree and right connection thick stick are mutually perpendicular to be welded into rectangular frame structure successively, and The opening of each angle steel is towards inner side and upside.Bottom plate uses solid wood board, and bottom plate is placed on preceding whippletree, left connection thick stick, rear whippletree In the rectangular frame formed with right connection thick stick.Stiffener plate is provided between left connection thick stick and right connection thick stick.Stiffener plate edge left and right To horizontal welding be fixedly installed on left connection thick stick and right connection thick stick between the plate body of downside.Hand push frame include left perpendicular thick stick, The right side perpendicular thick stick, hand push whippletree and stiffener plate.The perpendicular thick stick in a left side is welded and fixed vertically to be arranged on the junction of left connection thick stick and rear whippletree. The perpendicular thick stick in the right side is welded and fixed vertically to be arranged on the junction of rear whippletree and right connection thick stick.Hand push whippletree along left and right to horizontally disposed, The left and right ends of hand push whippletree, which are respectively welded, to be fixedly installed on the upper end of left perpendicular thick stick and right perpendicular thick stick.The perpendicular thick stick in a left side, right perpendicular thick stick and hand Push away whippletree and use hollow square steel.Stiffener plate uses band steel, and stiffener plate, which is welded and fixed, is arranged on the perpendicular thick stick of left perpendicular thick stick and the right side On top.Left diagonal brace is additionally provided between the middle inside of left connection thick stick in the middle part of the front side of the perpendicular thick stick in a left side, left diagonal brace uses hollow side Steel.Right diagonal brace is additionally provided between the middle inside of right connection thick stick in the middle part of the front side of the perpendicular thick stick in the right side, right diagonal brace uses hollow square steel.

The present invention has positive effect：（1）Present invention novelty simple in construction, is passed through after by rocker arm assembly, power is inputted It is amplified after gear-box, vertical-transmission component and horizontal transmission component, it is relatively labor-saving during use, it is also beneficial to Labor-saving handcart and climbs Slope, manpower is greatly saved, improve operating efficiency.

（2）The rocking arm extension bar of the rocker arm assembly of the present invention is sequentially provided with 2-4 connecting screw hole under upper, and crank can root According to reversing of position is needed, for crank when on uppermost connecting screw hole, the radius of gyration is big, applies torque maximum, suitable for carrying Very heavy goods or climbing.For crank when on nethermost connecting screw hole, the radius of gyration is small, applies torque minimum, but speed It hurry up, the efficiency carried can be improved.

（3）The gear-box of the transmission component of the present invention is provided with bevel pinion shaft and first gear axle, bevel pinion shaft and the One gear shaft is respectively equipped with first gear and second gear, and the gear ratio of first gear and second gear is 1:2, rocker arm assembly can To be alternatively connected to bevel pinion shaft or first gear axle, so as to produce different thrust and speed, adaptable, Er Qieyao Corresponding anti-axial dropping mechanism is provided between arm extension bar and the rear end of first gear axle or the rear end of bevel pinion shaft, is being shaken During crank rocking arm extension bar be not easy in the axial direction of bevel pinion shaft or the axle upward sliding of first gear axle and come off.Transmission component Gear-box be provided with second gear axle, second gear axle is provided with transition gear, and first gear is meshed with transition gear, transition Gear is meshed with second gear, so that crank is either connected on bevel pinion shaft or first gear axle, makes hand It is consistent during shaking direction when stroller advances, it is to turn clockwise, meets human body operating habit.Second gear and transition tooth The gear ratio of wheel is 34:35, be advantageous to the uniformity of gear wear during transmission.

（4）The lower cone gear of the vertical-transmission component of the transmission component of the present invention and the bottom of horizontal transmission component are justified The gear ratio for boring gear wheel is 1:2, it will further can be exported after the power augmentation of input, so that more being saved during trolley use Power.

（5）The present invention is provided with anti-slip component, trolley can be braked, trolley is worked as user from falling back When carrying heavy goods are climbed, dolly can be braked in midway, parking rest, hommization degree is high.

（6）The article carrying platform of the present invention is by the preceding whippletree for using angle steel material, left connection thick stick, rear whippletree and right connection thick stick It is mutually perpendicular to be welded into rectangular frame structure successively, and bottom is provided with stiffener plate, is adapted to carry heavier goods, bearing capacity By force.

（7）A left side for the hand push frame of the present invention erects thick stick, right perpendicular thick stick and hand push whippletree and use hollow square steel material, the perpendicular thick stick in a left side with Stiffener plate is provided between the perpendicular thick stick in the right side；In the middle part of the front side of the perpendicular thick stick in a left side left diagonal brace is additionally provided between the middle inside of left connection thick stick； Right diagonal brace is additionally provided between the middle inside of right connection thick stick in the middle part of the front side of the perpendicular thick stick in the right side, therefore hand push frame can bear larger push away Power, suitable for being used during loads.

（8）The hand push frame vehicle wheel component of the present invention uses universal wheel positioned at two anterior driven pulleys, consequently facilitating Trolley is turned, easy to use.

Brief description of the drawings

Fig. 1 is the structural representation of the Labor-saving handcart of the present invention；

Fig. 2 is that the Labor-saving handcart in Fig. 1 removes the right view after protective cover；

Fig. 3 is the A of the anti-slip component of the Labor-saving handcart in Fig. 2 to enlarged diagram；

Fig. 4 is the schematic diagram of the chassis assembly of the Labor-saving handcart in Fig. 1；

The right side that Fig. 5 is Fig. 4 regards schematic diagram；

Fig. 6 is B in Fig. 5 to enlarged diagram；

Fig. 7 is Fig. 5 schematic top plan view；

Fig. 8 is the structural representation of the transmission component and driving wheel in Fig. 1；

Fig. 9 is the mplifying structure schematic diagram of the top chock of vertical-transmission component in the transmission component in Fig. 8；

The right side that Figure 10 is Fig. 9 regards schematic diagram；

Figure 11 is the mplifying structure schematic diagram of the rear bearing block of the transmission component middle gear case in Fig. 8；

The right side that Figure 12 is Figure 11 regards schematic diagram；

The right side that Figure 13 is Fig. 8 regards schematic diagram；

Figure 14 is to remove the C-C section view enlarged diagrams after protective cover in Figure 13；

Figure 15 is the mplifying structure schematic diagram of the bevel pinion shaft of the transmission component middle gear case in Fig. 8；

Figure 16 is that the anti-reverse of the anti-slip component in Fig. 1 switches the mplifying structure schematic diagram of cushion block；

Figure 17 is the mplifying structure schematic diagram of the brake lever in Fig. 3；

Figure 18 is working state structure schematic diagram when anti-slip component is in braking；

When Figure 19 is that anti-slip component is in opening（It can move backward）Working state structure schematic diagram；

Figure 20 is enlarged diagram at the X in Fig. 8；

Figure 21 is enlarged diagram at the Y in Fig. 8；

Figure 22 is enlarged diagram at the Z in Figure 13.

Mark in above-mentioned accompanying drawing is as follows：

Chassis assembly 1,

Article carrying platform 1-1, border component 1-1a, preceding whippletree 1-1a-1, left connection thick stick 1-1a-2, rear whippletree 1-1a-3 are right Thick stick 1-1a-4, stiffener plate 1-1a-5, bottom plate 1-1b are connected,

Hand push frame 1-2, the perpendicular thick stick 1-2a in a left side, the right side perpendicular thick stick 1-2b, hand push whippletree 1-2c, stiffener plate 1-2d,

Left diagonal brace 1-3, right diagonal brace 1-4,

Vehicle wheel component 2, driving wheel 2-1, driven pulley 2-2,

Transmission component 3, gear-box 3-1, rear bearing block 3-1-1, bevel pinion shaft 3-1-2, conical gear portion 3-1-2a, the One square connecting portion 3-1-2b, first gear axle 3-1-3, the second square connecting portion 3-1-3a, second gear axle 3-1-4, protection 3-1-5, first gear 3-1-6, second gear 3-1-7, transition gear 3-1-8 are covered,

Vertical-transmission component 3-2, top chock 3-2-1, vertical drive shaft 3-2-2, upper cone gear 3-2-3, bottom Conical gear 3-2-4, step 3-2-5,

Horizontal transmission component 3-3, horizontal drive shaft 3-3-1, lower cone gear wheel 3-3-2,

Rocker arm assembly 3-4, rocking arm extension bar 3-4-1, square hole 3-4-1a, crank 3-4-2 are connected,

Steel ball positioning component 3-5,

Anti-slip component 4, anti-reverse switching cushion block 4-1, regulating tank 4-1-1,

Replace handle 4-2, turning rolls 4-3, roller 4-4, ratchet 4-5, ratchet 4-6, pawl tension spring 4-7, brake lever 4- 8, installing plate 4-9, limited post 4-10, back-moving spring 4-11, traction steel wire 4-12.

Embodiment

The present invention orientation description according to trolley using when orientation be described, using trolley direction of advance before Side, namely the fore-and-aft direction up and down of the as description of direction up and down shown in Fig. 1, a side of court of Fig. 1 institutes is left, away from figure 1 side is right.

（Embodiment 1）

See Fig. 1 to Fig. 3, Labor-saving handcart of the invention includes chassis assembly 1, vehicle wheel component 2, transmission component 3 and anti-slip Car component 4.

See Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 7, chassis assembly 1 includes article carrying platform 1-1 and hand push frame 1-2.Article carrying platform 1- 1 includes border component 1-1a and bottom plate 1-1b.Border component 1-1a includes preceding whippletree 1-1a-1, left connection thick stick 1-1a-2, rear horizontal stroke Thick stick 1-1a-3 and right connection thick stick 1-1a-4.Preceding whippletree 1-1a-1, left connection thick stick 1-1a-2, rear whippletree 1-1a-3 and right connection thick stick 1- 1a-4 uses equal leg angle, preceding whippletree 1-1a-1, left connection thick stick 1-1a-2, rear whippletree 1-1a-3 and right connection thick stick 1-1a-4 according to It is secondary to be mutually perpendicular to be welded into rectangular frame structure, and the opening of each angle steel is towards inner side and upside.Bottom plate 1-1b uses solid wood Plate, bottom plate 1-1b are placed on preceding whippletree 1-1a-1, left connection thick stick 1-1a-2, rear whippletree 1-1a-3 and right connection thick stick 1-1a-4 and formed Rectangular frame in.Stiffener plate 1-1a-5 is provided between left connection thick stick 1-1a-2 and right connection thick stick 1-1a-4, the present embodiment Stiffener plate 1-1a-5 has 2, and 2 stiffener plate 1-1a-5 use band steel.2 stiffener plate 1-1a-5 are along left and right Xiang Shui Flat welded be fixedly installed on left connection thick stick 1-1a-2 and right connection thick stick 1-1a-4 positioned at the plate body of downside between, and 2 are strengthened Gusset 1-1a-5 is set gradually from front to back.Hand push frame 1-2 include left perpendicular thick stick 1-2a, right perpendicular thick stick 1-2b, hand push whippletree 1-2c and Stiffener plate 1-2d.The perpendicular thick stick 1-2a in a left side is welded and fixed the junction for being arranged on left connection thick stick 1-1a-2 and rear whippletree 1-1a-3 vertically On.The perpendicular thick stick 1-2b in the right side is welded and fixed vertically to be arranged on rear whippletree 1-1a-3 and right connection thick stick 1-1a-4 junction.Hand push is horizontal For thick stick 1-2c along left and right to being horizontally disposed with, hand push whippletree 1-2c left and right ends, which are respectively welded, is fixedly installed on left perpendicular thick stick 1-2a and the right side On perpendicular thick stick 1-2b upper end.The perpendicular thick stick 1-2a in a left side, right perpendicular thick stick 1-2b and hand push whippletree 1-2c use hollow square steel.Stiffener plate 1- 2d uses band steel, and stiffener plate 1-2d, which is welded and fixed, to be arranged on left perpendicular thick stick 1-2a and right perpendicular thick stick 1-2b top.The perpendicular thick stick 1- in a left side Left diagonal brace 1-3 is additionally provided between left connection thick stick 1-1a-2 middle inside in the middle part of 2a front side, left diagonal brace 1-3 uses hollow side Steel.In the middle part of the perpendicular thick stick 1-2b in right side front side right diagonal brace 1-4, right diagonal brace 1- are additionally provided between right connection thick stick 1-1a-4 middle inside 4 use hollow square steel.

See Fig. 1, Fig. 2, Fig. 8 and Figure 13, vehicle wheel component 2 includes two driving wheel 2-1 and two driven pulley 2-2.Two from Driving wheel 2-2 uses universal wheel.Two driven pulley 2-2 are respectively fixedly disposed at article carrying platform 1-1 border component 1-1a square On the lower lateral front left and right ends of shape framework.

Fig. 1, Fig. 2, Fig. 6, Fig. 8 are seen to Figure 16 and Figure 20 to Figure 22, and transmission component 3 includes gear-box 3-1, vertical-transmission group Part 3-2, horizontal transmission component 3-3 and rocker arm assembly 3-4.Gear-box 3-1 includes rear bearing block 3-1-1, bevel pinion shaft 3-1- 2nd, first gear axle 3-1-3, second gear axle 3-1-4, protective cover 3-1-5 and first gear 3-1-6, second gear 3-1-7 and Transition gear 3-1-8.On rear bearing block 3-1-1 is fixedly installed in the middle part of hand push whippletree 1-2c rear side.Bevel pinion shaft 3-1-2 It is rotatably arranged on by corresponding bearing on rear bearing block 3-1-1, its axis is along front and rear to horizontally disposed, bevel pinion shaft 3-1- 2 conical gear portion 3-1-2a is located at rear bearing block 3-1-1 front side.First gear 3-1-6 is passed by corresponding transmission flat key It is dynamic to be arranged on bevel pinion shaft 3-1-2 rear portion, and positioned at rear bearing block 3-1-1 rear side.Before second gear axle 3-1-4 Portion is rotatably arranged on rear bearing block 3-1-1 by corresponding bearing, and its axis is along front and rear to horizontally disposed.Transition gear 3-1- 8 are arranged on second gear axle 3-1-4 rear portion by the transmission of corresponding transmission flat key.Transition gear 3-1-8 and first gear 3-1-6 is meshed, and transition gear 3-1-8 and first gear 3-1-6 gear ratio is 2:1.First gear axle 3-1-3 front portion leads to Cross corresponding bearing to be rotatably arranged on rear bearing block 3-1-1, its axis is along front and rear to horizontally disposed.Second gear 3-1-7 leads to Corresponding transmission flat key transmission is crossed to be arranged on first gear axle 3-1-3 rear portion.Second gear 3-1-7 and transition gear 3-1- 8 are meshed, and second gear 3-1-7 and transition gear 3-1-8 gear ratio is 34:35.Bevel pinion shaft 3-1-2 rear end is provided with First square connecting portion 3-1-2b.First gear axle 3-1-3 rear end is provided with the second square connecting portion 3-1-3a.First gear axle The 3-1-3 square connecting portion 3-1-2b and bevel pinion shaft 3-1-2 of the rear end first square connecting portion 3-1-3a in rear end second is equal Provided with corresponding steel ball positioning component 3-5.

See that Fig. 1, Fig. 2, Fig. 6, Fig. 8 include upper axle to Figure 10, Figure 13, Figure 15, Figure 20 to Figure 22, vertical-transmission component 3-2 Bearing 3-2-1, vertical drive shaft 3-2-2, upper cone gear 3-2-3, lower cone gear 3-2-4 and step 3-2-5. On top chock 3-2-1 is fixedly installed in the middle part of hand push whippletree 1-2c front side.Step 3-2-5 is fixedly installed on rear whippletree On 1-1a-3 middle part.Vertical drive shaft 3-2-2 is by the bearing that is arranged on accordingly in top chock 3-2-1 and is arranged on down Bearing vertical in bearing block 3-2-5 is rotatably arranged on top chock 3-2-1 and step 3-2-5.Upper cone gear 3-2-3 transmission be arranged on vertical drive shaft 3-2-2 upper end, and with bevel pinion shaft 3-1-2 conical gear portion 3-1-2a It is meshed, upper cone gear 3-2-3 and bevel pinion shaft 3-1-2 conical gear portion 3-1-2a gear ratio is 1:1.Bottom Conical gear 3-2-4 transmissions are arranged on vertical drive shaft 3-2-2 lower end.Lower cone gear 3-2-4 and upper cone tooth The gear ratio for taking turns 3-2-3 is 1:1.

See that Fig. 1, Fig. 2, Fig. 8, Figure 11, Figure 13, Figure 20 include horizontal drive shaft 3-3-1 to Figure 22, horizontal transmission component 3-3 With lower cone gear wheel 3-3-2.Horizontal drive shaft 3-3-1 is set by corresponding bearing and bearing block along left and right to horizontally rotating Put, and positioned at article carrying platform 1-1 rear underside.Lower cone gear wheel 3-3-2 transmissions are arranged on horizontal drive shaft 3-3-1's On middle part, and it is meshed with vertical-transmission component 3-2 lower cone gear 3-2-4.Lower cone gear 3-2-4 justifies with bottom The gear ratio for boring gear wheel 3-3-2 is 1:2.2 driving wheel 2-1 of vehicle wheel component 2 are driven respectively is arranged on horizontal drive shaft 3- 3-1 left and right ends.

See Fig. 1, Fig. 2, Fig. 8 and Figure 14, rocker arm assembly 3-4 includes rocking arm extension bar 3-4-1 and crank 3-4-2.Rocking arm extension bar 3-4-1 lower ends are provided with connection square hole 3-4-1a, and rear end and the circular cone with first gear axle 3-1-3 are provided with connection square hole 3-4-1a The inside annular groove of opening that the steel ball positioning component 3-5 of gear shaft 3-1-2 rear end is engaged, for preventing rocking arm extension bar 3-4-1 is axially come off, and rocking arm extension bar 3-4-1 is enclosed on first gear axle 3-1-3 rear end or bevel pinion shaft 3-1-2 during use Rear end on, annular groove in rocking arm extension bar 3-4-1 connection square hole 3-4-1a forms clamping with steel ball positioning component 3-5 and matched somebody with somebody Close.Rocking arm extension bar 3-4-1 is sequentially provided with 2-4 connecting screw hole 3-4-1b under upper, and the present embodiment is 3, crank 3-4-2 rotations Conjunction is fixedly installed in the connecting screw hole 3-4-1b of the top.

See Fig. 1 to Fig. 3 and Figure 16 to Figure 19, anti-slip component 4 include anti-reverse switching cushion block 4-1, transposition handle 4-2, Turning rolls 4-3, roller 4-4, ratchet 4-5, ratchet 4-6, pawl tension spring 4-7, brake lever 4-8, installing plate 4-9, limited post 4- 10th, back-moving spring 4-11 and traction steel wire 4-12.Anti-reverse switching cushion block 4-1 is weldingly fixed in stiffener plate 1-2d rear side In portion, anti-reverse switching cushion block 4-1 is provided with the regulating tank 4-1-1 run through before and after it, and regulating tank 4-1-1 is in reverse V-shaped, regulation substantially The bottom of the groove 4-1-1 groove section positioned at rear side is higher than the bottom of the groove section positioned at front side.Transposition handle 4-2 is slidably arranged in anti- In reversing switching cushion block 4-1 regulating tank 4-1-1.Turning rolls 4-3, which is welded and fixed, to be arranged in the middle part of rear whippletree 1-1a-3 rear side On.Roller 4-4 is rotatably arranged on turning rolls 4-3.Ratchet 4-5 is driven the horizontal drive shaft for being arranged on horizontal transmission component 3-3 On 3-3-1.Brake lever 4-8 front portions are rotatably arranged on horizontal drive shaft 3-3-1, and ratchet 4-6 is rotatably arranged on brake lever On 4-8, ratchet mechanism is formed with ratchet 4-5.Rubber antiskid pad 4-8-1 is provided with the downside of brake lever 4-8 rear end.Pawl tension spring 4-7 is arranged on ratchet 4-6 between brake lever 4-8, for ratchet 4-6 to be pulled into ratchet 4-5, prevents ratchet 4-5 from reversing, from And prevent horizontal drive shaft 3-3-1 from rotating, play braking action.Installing plate 4-9, which is welded and fixed, is arranged on rear whippletree 1-1a-3's On lower middle side part.Limited post 4-10 is fixedly installed on installing plate 4-9 downside rear end, for limiting brake lever 4-8 row Journey.Back-moving spring 4-11 is arranged between installing plate 4-9 and brake lever 4-8, for that will brake thick stick in trolley normally travel Bar 4-8 is pulled upwardly.Traction steel wire 4-12 upper ends are fixedly installed on transposition handle 4-2, and bottom is through roller 4-4 transition posterior end It is fixedly connected on ratchet 4-6.

See Figure 18 and Figure 19, Labor-saving handcart of the invention in use, first by the transposition handle 4-2 of anti-slip component 4 to Back upper place pulls, and it is connected in the regulating tank 4-1-1 groove section positioned at rear side, so that by traction steel wire 4-12 by ratchet 4-6 pull-ups, ratchet 4-6 is set to depart from ratchet 4-5, while brake lever 4-8 pull-ups are made brake lever 4-8 by back-moving spring 4-11 Depart from ground, Labor-saving handcart can move freely under the operation of people.When Labor-saving handcart loads, user is with hand Shake 3-4-2, power is inputted to gear-box 3-1, power is through gear-box 3-1, vertical-transmission component 3-2 and horizontal conveyor group It is amplified after part 3-3, so as to, with regard to that Labor-saving handcart can be promoted to advance, be also beneficial to Labor-saving handcart by less rotatory force Climbing, greatly saves manpower, improves operating efficiency.When Labor-saving handcart stops unloading, or need on the slope During parking rest, the transposition handle 4-2 of anti-slip component 4 need to only be pulled out from the regulating tank 4-1-1 groove section positioned at rear side, It is located in the regulating tank 4-1-1 groove section positioned at front side, now ratchet 4-6 is pulled to ratchet 4-5 by pawl tension spring 4-7, together When brake lever 4-8 by ratchet 4-6 push up earthward, so as to prevent horizontal drive shaft 3-3-1 rotate, play to Labor-saving handcart Braking action, Labor-saving handcart can not be fallen back.

Above example is used for illustrative purposes only, rather than limitation of the present invention, the technology people about technical field Member without departing from the spirit and scope of the present invention, can also make various conversion and change, during concrete application It can also be transformed accordingly according to the inspiration of above-described embodiment, therefore all equivalent technical schemes should be included into this hair Within bright scope of patent protection.

Claims (3)

1. a kind of Labor-saving handcart, including chassis assembly（1）And vehicle wheel component（2）；Chassis assembly（1）Including article carrying platform（1- 1）And hand push frame（1-2）；Hand push frame（1-2）It is fixedly installed on article carrying platform（1-1）On；It is characterized in that：Also include transmission group Part（3）；

Vehicle wheel component（2）Including two driving wheels（2-1）With two driven pulleys（2-2）；Two driven pulleys（2-2）Using universal Wheel；Two driven pulleys（2-2）It is respectively fixedly disposed at article carrying platform（1-1）On lower lateral front left and right ends；

Transmission component（3）Including gear-box（3-1）, vertical-transmission component（3-2）, horizontal transmission component（3-3）And rocker arm assembly （3-4）；

Gear-box（3-1）Including rear bearing block（3-1-1）And bevel pinion shaft（3-1-2）；Rear bearing block（3-1-1）Fixed setting In hand push frame（1-2）On top；Bevel pinion shaft（3-1-2）Rear bearing block is rotatably arranged on by corresponding bearing（3-1-1） On, its axis is along front and rear to horizontally disposed, bevel pinion shaft（3-1-2）Conical gear portion (3-1-2a) be located at rear bearing block （3-1-1）Front side；Bevel pinion shaft（3-1-2）Rear end be provided with the first square connecting portion（3-1-2b）；First gear axle（3- 1-3）Rear end the second square connecting portion（3-1-3a）Provided with steel ball positioning component（3-5）；Rocker arm assembly（3-4）Including rocking arm Extension bar（3-4-1）And crank（3-4-2）；Rocking arm extension bar（3-4-1）Lower end is provided with connection square hole（3-4-1a）, connect square hole（3- 4-1a）Inside it is provided with and bevel pinion shaft（3-1-2）Rear end steel ball positioning component（3-5）The inside annular that is open being engaged Groove, for preventing rocking arm extension bar（3-4-1）Axially come off, rocking arm extension bar（3-4-1）It is enclosed on bevel pinion shaft（3-1-2）After On end, rocking arm extension bar（3-4-1）Connection square hole（3-4-1a）Interior annular groove and steel ball positioning component（3-5）Form clamping Coordinate；Rocking arm extension bar（3-4-1）2-4 connecting screw hole is sequentially provided with from top to bottom（3-4-1b）, crank（3-4-2）Screw solid Surely it is arranged on corresponding connecting screw hole（3-4-1b）On；

Vertical-transmission component（3-2）Including top chock（3-2-1）, vertical drive shaft（3-2-2）, upper cone gear（3-2- 3）, lower cone gear（3-2-4）And step（3-2-5）；Top chock（3-2-1）It is fixedly installed on hand push frame（1-2） On top；Step（3-2-5）It is fixedly installed on article carrying platform（1-1）On；Vertical drive shaft（3-2-2）By setting accordingly Put in top chock（3-2-1）In bearing and be arranged on step（3-2-5）In bearing vertical be rotatably arranged on axle Bearing（3-2-1）And step（3-2-5）On；Upper cone gear（3-2-3）Transmission is arranged on vertical drive shaft（3-2-2） Upper end on, and and bevel pinion shaft（3-1-2）Conical gear portion（3-1-2a）It is meshed, upper cone gear（3-2-3） With bevel pinion shaft（3-1-2）Conical gear portion（3-1-2a）Gear ratio be 1:1；Lower cone gear（3-2-4）Transmission It is arranged on vertical drive shaft（3-2-2）Lower end on；Lower cone gear（3-2-4）With upper cone gear（3-2-3）Tooth Number is than being 1:1；

Horizontal transmission component（3-3）Including horizontal drive shaft（3-3-1）With lower cone gear wheel（3-3-2）；Horizontal drive shaft （3-3-1）Set by corresponding bearing and bearing block along left and right to horizontally rotating, and be located at article carrying platform（1-1）Downside after Portion；Lower cone gear wheel（3-3-2）Transmission is arranged on horizontal drive shaft（3-3-1）Middle part on, and with vertical-transmission component （3-2）Lower cone gear（3-2-4）It is meshed；Lower cone gear（3-2-4）With lower cone gear wheel（3-3-2）'s Gear ratio is 1:2；Vehicle wheel component（2）2 driving wheels（2-1）Transmission is arranged on horizontal drive shaft respectively（3-3-1）Left and right Both ends；

Rocker arm assembly（3-4）Detachable transmission is arranged on bevel pinion shaft（3-1-2）Rear end.

2. Labor-saving handcart according to claim 1, it is characterised in that：Transmission component（3）Also include first gear axle（3- 1-3）, second gear axle（3-1-4）, first gear（3-1-6）, second gear（3-1-7）And transition gear（3-1-8）；

First gear（3-1-6）Bevel pinion shaft is arranged on by the transmission of corresponding transmission flat key（3-1-2）Rear portion on, and position In rear bearing block（3-1-1）Rear side；First gear axle（3-1-3）Front portion rear bearing is rotatably arranged on by corresponding bearing Seat（3-1-1）On, its axis is along front and rear to horizontally disposed；First gear axle（3-1-3）Rear end provided with corresponding steel ball position Component（3-5）；Second gear（3-1-7）First gear axle is arranged on by the transmission of corresponding transmission flat key（3-1-3）Rear portion On；Second gear axle（3-1-4）Front portion rear bearing block is rotatably arranged on by corresponding bearing（3-1-1）On, its axis edge It is front and rear to horizontally disposed；Transition gear（3-1-8）Second gear axle is arranged on by the transmission of corresponding transmission flat key（3-1-4）'s On rear portion；Transition gear（3-1-8）With first gear（3-1-6）It is meshed, transition gear（3-1-8）With first gear（3-1- 6）Gear ratio be 2:1；Second gear（3-1-7）With transition gear（3-1-8）It is meshed, second gear（3-1-7）With transition Gear（3-1-8）Gear ratio be 34:35.

3. Labor-saving handcart according to claim 2, it is characterised in that：Article carrying platform（1-1）Including border component（1- 1a）And bottom plate（1-1b）；Border component（1-1a）Including preceding whippletree（1-1a-1）, left connection thick stick（1-1a-2）, rear whippletree（1- 1a-3）With right connection thick stick（1-1a-4）；Preceding whippletree（1-1a-1）, left connection thick stick（1-1a-2）, rear whippletree（1-1a-3）With right company Connect thick stick（1-1a-4）Use equal leg angle, preceding whippletree（1-1a-1）, left connection thick stick（1-1a-2）, rear whippletree（1-1a-3）And the right side Connect thick stick（1-1a-4）It is mutually perpendicular to be welded into rectangular frame structure successively, and the opening of each angle steel is towards inner side and upside； Bottom plate（1-1b）Using solid wood board, bottom plate（1-1b）It is placed on preceding whippletree（1-1a-1）, left connection thick stick（1-1a-2）, rear whippletree （1-1a-3）With right connection thick stick（1-1a-4）In the rectangular frame of composition；Left connection thick stick（1-1a-2）With right connection thick stick（1-1a-4） Between be provided with stiffener plate（1-1a-5）；Stiffener plate（1-1a-5）Left connection thick stick is fixedly installed on along left and right to level welding （1-1a-2）With right connection thick stick（1-1a-4）Between the plate body of downside；Hand push frame（1-2）Including the perpendicular thick stick in a left side（1-2a）, it is right Perpendicular thick stick（1-2b）, hand push whippletree（1-2c）And stiffener plate（1-2d）；The perpendicular thick stick in a left side（1-2a）Vertical be welded and fixed is arranged on left company Connect thick stick（1-1a-2）With rear whippletree（1-1a-3）Junction on；The perpendicular thick stick in the right side（1-2b）Vertical be welded and fixed is arranged on rear whippletree （1-1a-3）With right connection thick stick（1-1a-4）Junction on；Hand push whippletree（1-2c）Along left and right to horizontally disposed, hand push whippletree （1-2c）Left and right ends be respectively welded and be fixedly installed on left perpendicular thick stick（1-2a）With the perpendicular thick stick in the right side（1-2b）Upper end on；The perpendicular thick stick in a left side （1-2a）, right perpendicular thick stick（1-2b）With hand push whippletree（1-2c）Use hollow square steel；Stiffener plate（1-2d）Using band steel, strengthen Gusset（1-2d）It is welded and fixed and is arranged on left perpendicular thick stick（1-2a）With the perpendicular thick stick in the right side（1-2b）Top on；The perpendicular thick stick in a left side（1-2a）Front side Middle part and left connection thick stick（1-1a-2）Middle inside between be additionally provided with left diagonal brace（1-3）, left diagonal brace（1-3）Using hollow side Steel；The perpendicular thick stick in the right side（1-2b）Front side in the middle part of with right connection thick stick（1-1a-4）Middle inside between be additionally provided with right diagonal brace（1-4）, it is right Diagonal brace（1-4）Using hollow square steel.