CN114074812A

CN114074812A - Unpowered portable heavy-load piling car

Info

Publication number: CN114074812A
Application number: CN202010816752.0A
Authority: CN
Inventors: 闫洪元; 李明; 薛成超; 徐元军; 付存银; 卞希帅
Original assignee: Shenyang Siasun Robot and Automation Co Ltd
Current assignee: Shenyang Siasun Robot and Automation Co Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2022-02-22
Anticipated expiration: 2040-08-14
Also published as: CN114074812B

Abstract

The invention relates to the field of automated logistics storage, in particular to an unpowered portable heavy-load stacking vehicle, wherein a lifting mechanism and a lifting sliding plate are arranged on a vehicle frame, the lifting sliding plate is driven to lift through the lifting mechanism, a translation driving mechanism and a translation sliding table are arranged on the lifting sliding plate, the translation sliding table is driven to translate through the translation driving mechanism, a rotary fork is arranged on the translation sliding table, walking wheel assemblies are arranged on two sides of the vehicle frame, a sliding groove is formed in one side of a rail, walking wheels in the walking wheel assemblies move along the rail, an anti-overturning wheel assembly moves along the sliding groove, the reversing wheel assembly comprises a movable pedal and reversing wheels, the movable pedal is placed on the rail when the vehicle frame is reversed, the anti-overturning wheel assembly moves outwards to be separated from the sliding groove in the corresponding rail, the reversing wheels descend to be in contact with the corresponding movable pedal, and the walking wheels are lifted to be separated from the rail. The invention can be quickly arranged in different roadways and is purely manually controlled, and can replace a stacker with faults or power failure to realize goods storage and taking.

Description

Unpowered portable heavy-load piling car

Technical Field

The invention relates to the field of automatic logistics storage, in particular to an unpowered portable heavy-load stacking vehicle.

Background

With continuous innovation and upgrading of the automatic warehouse logistics system, the relationship between the stereoscopic warehouse and the production line is more and more compact, the stacker is used as the most central equipment in the automatic warehouse logistics system, and once the warehouse is stopped due to failure or power failure of the warehouse area, goods on the goods shelves in the whole roadway are completely stopped in warehousing, so that the efficiency of the logistics system is seriously influenced, and even the production line is stopped. If the goods are below dozens of kilograms, the goods can be temporarily handled by measures such as manual handling, if the goods are above hundreds of kilograms, the goods cannot be manually handled, even if the emergency forklift is used for handling, the goods cannot be manually handled, the goods are limited to conflict with the conventional track, the goods cannot be freely moved, cannot be laterally stretched and forked to take and place the goods, the self weight is large, the goods cannot be conveniently and transversely handled among multiple roadways, and the like, so that the temporary handling can hardly be realized.

Disclosure of Invention

The invention aims to provide an unpowered portable heavy-load stacking vehicle which can be quickly arranged in different roadways and is purely manually operated, and when an automatically-operated stacker is stopped due to failure or power failure in a storage area, the stacker can be replaced to realize goods storage and taking.

The purpose of the invention is realized by the following technical scheme:

a non-powered portable heavy-load stacking vehicle comprises a vehicle frame, a lifting mechanism, a lifting slide plate, a translation driving mechanism, a translation sliding table, a rotary fork, a walking wheel assembly, a reversing wheel assembly and a track, wherein the lifting mechanism and the lifting slide plate are arranged on the vehicle frame, the lifting slide plate drives the lifting mechanism to lift, the translation driving mechanism and the translation sliding table are arranged on the lifting slide plate, the translation sliding table drives the translation through the translation driving mechanism, the rotary fork is arranged on the translation sliding table, the walking wheel assembly is arranged on two sides of the vehicle frame, the walking wheel assembly comprises a walking wheel and an anti-overturning wheel assembly movably arranged on the shaft of the walking wheel, a chute is arranged on one side of the track, the walking wheel moves along the track, the anti-overturning wheel assembly moves along the chute, and the reversing wheel assembly comprises a movable pedal and a reversing wheel arranged on the corresponding walking wheel assembly in a liftable manner, when the frame is reversed, the movable pedal is vertically placed on the track, the anti-tipping wheel set moves outwards to be separated from the sliding groove on the corresponding track, then the reversing wheel descends to be in contact with the corresponding movable pedal, and the travelling wheel is jacked to be separated from the track.

Be equipped with the grudging post on the frame, just the lifting slide with grudging post sliding connection, elevating system includes hydraulic cylinder, sprocket and chain, and hydraulic cylinder set firmly in the grudging post the cylinder rod tip of hydraulic cylinder is equipped with the sprocket seat, and the sprocket is located on the sprocket seat, the grudging post middle part is equipped with the centre sill, chain one end is fixed in on the centre sill, the other end is walked around corresponding sprocket after-fixing in on the lifting slide.

Translation slip table with lifting slide sliding connection, translation actuating mechanism includes hand wheel, hold-in range, driving pulley and driven pulleys, and wherein driving pulley and driven pulleys all locate lifting slide is last, driving pulley passes through hand wheel drive rotates, and driving pulley and driven pulleys pass through the hold-in range is connected, translation slip table with the hold-in range links firmly.

Rotatory fork includes the fork body and slewing bearing, slewing bearing is fixed in on the translation slip table, fork body one end install in slewing bearing is last.

Translation slip table one end is equipped with the stopper, the other end is equipped with first lock ear, fork body one side is equipped with the telescopic lockpin, the opposite side is equipped with the second lock ear, the fork body rotates the back that targets in place, lockpin on the fork body stretches out and offsets spacingly with the stopper inboard that corresponds on the translation slip table, first lock ear with the second lock ear links firmly the locking.

The free end of the translation sliding table is provided with a handle, and the middle of the upper side of the translation sliding table is provided with a slewing bearing mounting plate.

Walking wheel subassembly presss from both sides) and clutch blocks including walking wheel, mount pad, braking elbow, the mount pad is located on the frame, walking wheel and braking elbow press from both sides and all locate on the mount pad, the clutch blocks install in the braking elbow presss from both sides on, just the clutch blocks passes through the braking elbow presss from both sides the drive and compresses tightly the walking wheel, the walking wheel outside is equipped with the direction rim plate.

The anti-tipping wheel group in the walking wheel assembly comprises an anti-tipping frame, an anti-tipping wheel and a stop pin, the upper end of the anti-tipping frame is mounted on a wheel shaft of the walking wheel, the lower end of the anti-tipping frame is provided with the anti-tipping wheel which moves along a sliding groove on the track, the stop pin is inserted into a through hole on the wheel shaft to limit the outward movement of the anti-tipping frame, the upper end of the anti-tipping frame is provided with a positioning hole, when the frame is reversed, the stop pin is pulled out, the outward movement of the anti-tipping frame enables the anti-tipping wheel to be separated from the sliding groove on the track, the positioning hole is aligned with the through hole on the wheel shaft of the walking wheel, and then the stop pin is inserted into the through hole on the wheel shaft again.

The reversing wheel assembly comprises a reversing wheel, a lifting screw and a movable pedal, the lifting screw is in threaded connection with the walking wheel assembly, the reversing wheel is arranged at the lower end of the lifting screw, the movable pedal comprises a straight section and a slope section, and the straight section of the movable pedal is placed on the track and the slope section is abutted to the ground when the frame is reversed.

The frame includes crossbearer and grudging post, just crossbearer and grudging post are the L type setting, and elevating system and lifting slide locate on the grudging post, be equipped with the handrail on the grudging post, be equipped with the wheel seat on the crossbearer.

The invention has the advantages and positive effects that:

1. the frame can realize reversing operation by utilizing the reversing wheel assembly, can be adjusted according to the existing track, and can be quickly arranged in different roadways, and the lifting mechanism, the translation driving mechanism and the rotary fork of the invention are manually controlled, the operation does not need additional power, and the frame is not limited by external energy sources, and when the automatic stacker stops operation due to failure or power failure in a warehouse area, the automatic stacker can be replaced to realize goods storage and taking.

2. The goods taking and placing device is compact in overall structure and light in self weight, rapid deployment can be achieved, in addition, the lifting driving is achieved through the manual hydraulic cylinder, the translation driving is achieved through the hand wheel, even if more than hundreds of kilograms of goods are taken and placed easily and freely, in addition, the goods can be taken and placed through rotating the fork according to needs, and the use is flexible and convenient.

Drawings

Figure 1 is a schematic structural view of the present invention,

figure 2 is another perspective view of the present invention of figure 1,

figure 3 is a front view of the invention of figure 1,

figure 4 is a left side view of the invention of figure 1,

figure 5 is a schematic structural view of the vehicle frame of figure 1,

figure 6 is a schematic structural view of the translation stage in figure 1,

figure 7 is an enlarged view at a in figure 1,

figure 8 is a schematic structural view of figure 1 with the translation stage removed at B,

fig. 9 is an enlarged view of fig. 2 at C.

Wherein, 1 is a frame, 101 is a vertical frame, 102 is a cross frame, 103 is a wheel seat, 104 is a handrail, 105 is a middle beam, 2 is a walking wheel component, 201 is a walking wheel, 202 is a mounting seat, 203 is a brake elbow clip, 204 is a friction block, 205 is a wheel shaft, 206 is an anti-tipping frame, 207 is an anti-tipping wheel, 208 is a guide wheel disc, 209 is a stop pin, 3 is a lifting mechanism, 301 is a manual hydraulic cylinder, 302 is a chain wheel, 303 is a chain, 304 is a chain wheel seat, 305 is a lifting slide rail, 4 is a translation slide table, 401 is a rotary support mounting plate, 402 is a slide mounting plate, 403 is a first lock lug, 404 is a handle, 405 is a limit block, 5 is a translation driving mechanism, 501 is a hand wheel, 502 is a synchronous belt, 503 is a driving pulley, 504 is a translation slide rail, 505 is a driven pulley, 506 is a top wire, 507 is a top wire seat, 508 is an upper clamp plate, 509 is a lower clamp plate, 6 is a rotary fork, 601 is a cargo body, 602 is a rotary support, 603 is a second lock lug, 604 is a lock pin, 7 is a reversing wheel component, 701 is a movable pedal, 702 is a lifting screw rod, 703 is a reversing wheel, 8 is a protective baffle, 9 is a lifting sliding plate, and 10 is a track.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 9, the invention comprises a frame 1, a lifting mechanism 3, a lifting slide plate 9, a translational driving mechanism 5, a translational sliding table 4, a rotary fork 6, a traveling wheel assembly 2, a reversing wheel assembly 7 and a track 10, wherein the lifting mechanism 3 and the lifting slide plate 9 are both arranged on the frame 1, the lifting slide plate 9 is driven to lift by the lifting mechanism 3, the translational driving mechanism 5 and the translational sliding table 4 are both arranged on the lifting slide plate 9, the translational sliding table 4 is driven to translate by the translational driving mechanism 5, the rotary fork 6 is arranged on the translational sliding table 4, the traveling wheel assemblies 2 are arranged at the front and rear ends of both sides of the frame 1, as shown in fig. 7, the traveling wheel assemblies 2 comprise traveling wheels 201 and anti-tilting wheel sets movably arranged on axles 205 of the traveling wheels 201, a chute is arranged at one side of the track 10, and the traveling wheels 201 move along the upper surface of the track 10, the anti-tipping wheel group moves along the sliding groove, the reversing wheel component 7 comprises a movable pedal 701 and a reversing wheel 703 which is arranged on the corresponding walking wheel component 2 in a lifting mode, the movable pedal 701 is vertically placed on the track 10 when the frame 1 is reversed, the anti-tipping wheel group moves outwards to be separated from the sliding groove on the corresponding track 10, then the reversing wheel 703 descends to be in contact with the corresponding movable pedal 701, and meanwhile the walking wheel 201 is lifted to be separated from the track 10.

As shown in fig. 1 to 3, a vertical frame 101 is disposed on the frame 1, the lifting mechanism 3 and the lifting slide plate 9 are both disposed on the vertical frame 101, wherein the lifting slide plate 9 is slidably connected to the vertical frame 101, as shown in fig. 3, a lifting slide rail 305 is vertically disposed on the vertical frame 101, and a lifting slide block engaged with the lifting slide rail 305 is disposed on the lifting slide plate 9.

As shown in fig. 2 to 3, the lifting mechanism 3 includes a manual hydraulic cylinder 301, a chain wheel 302 and a chain 303, the manual hydraulic cylinder 301 is vertically fixed in the vertical frame 101, a chain wheel base 304 is disposed at an end of a cylinder rod of the manual hydraulic cylinder 301, the chain wheel 302 is disposed on the chain wheel base 304, a middle beam 105 is disposed in the middle of the vertical frame 101, one end of the chain 303 is fixed on the middle beam 105, the other end of the chain is fixed on the lifting slide plate 9 after bypassing the corresponding chain wheel 302, the manual hydraulic cylinder 301 drives the chain wheel base 304 to drive the chain wheel 303 to lift, and then the lifting slide plate 9 is lifted by the chain 303. The manual hydraulic cylinder 301 is well known in the art and is commercially available.

As shown in fig. 3, the translational sliding table 4 is slidably connected to the lifting slide plate 9, a translational slide rail 504 is disposed on the lifting slide plate 9, and a translational slide block matched with the translational slide rail 504 is disposed on the translational sliding table 4.

As shown in fig. 1 to 3 and fig. 8 to 9, the translational driving mechanism 5 includes a handwheel 501, a synchronous belt 502, a driving pulley 503 and a driven pulley 505, wherein the driving pulley 503 and the driven pulley 505 are both rotatably disposed on the lifting slide plate 9, the driving pulley 503 is driven to rotate by the handwheel 501, the driving pulley 503 and the driven pulley 505 are connected by the synchronous belt 502, and the translational sliding table 4 is fixedly connected with the synchronous belt 502. When the translation driving mechanism 5 works, a worker rotates a hand wheel 501 to drive the driving belt wheel 503 to drive the synchronous belt 502 to rotate, and the synchronous belt 502 drives the translation sliding table 4 to move.

As shown in fig. 8, in this embodiment, an upper clamping plate 508 and a lower clamping plate 509 are arranged on the translation sliding table 4 to clamp and fixedly connect the synchronous belt 502, so that the translation sliding table 4 moves along with the synchronous belt 502.

As shown in fig. 9, the lifting slide plate 9 is provided with a jackscrew 506 and a jackscrew seat 507, the jackscrew 506 is disposed on the jackscrew seat 507, and the jackscrew 506 can be screwed and pressed against a wheel rod of the hand wheel 501 to limit the rotation of the hand wheel 501.

As shown in fig. 1, the rotary fork 6 includes a fork body 601 and a slewing bearing 602, the slewing bearing 602 is fixed on the translation sliding table 4, and one end of the fork body 601 is mounted on the slewing bearing 602 to rotate. The slewing bearing 602 is well known in the art and is a commercially available product.

As shown in fig. 6, a limiting block 405 and a sliding mounting plate 402 are arranged at one end of the sliding table 4, the sliding mounting plate 402 is connected with the lifting slide plate 9 in a sliding manner, a handle 404 and a first locking lug 403 are arranged at the other end of the sliding table 4, a slewing bearing mounting plate 401 is arranged in the middle of the upper side of the sliding table 4, and a slewing bearing 602 is arranged on the slewing bearing mounting plate 401.

As shown in fig. 4, one side of the fork body 601 is provided with a second lock lug 603, the other side of the fork body is provided with a retractable lock pin 604, when the fork body 601 rotates in place, the lock pin 604 on the fork body 601 extends out and abuts against the inner side of the corresponding limit block 405 on the sliding table 4 to realize the limit of the fork body 601, then the first lock lug 403 on the sliding table 4 is fixedly connected and locked with the second lock lug 603 on the fork body 601 through a bolt, and when the lock pin 604 retracts and the first lock lug 403 and the second lock lug 603 are unlocked, the fork body 601 can rotate around the center of the slewing bearing 602.

As shown in fig. 7, walking wheel subassembly 2 includes walking wheel 201, mount pad 202, braking elbow clamp 203 and clutch blocks 204, mount pad 202 is located on frame 1, walking wheel 201 and braking elbow clamp 203 are all located on mount pad 202, clutch blocks 204 install in on the braking elbow clamp 203, the walking wheel 201 outside is equipped with direction rim plate 208, just it is spacing that track 10 outside realization direction is located to direction rim plate 208, braking elbow clamp 203 drives clutch blocks 204 and compresses tightly down walking wheel 2, thereby realizes the braking locking of walking wheel 2. The brake elbow clip 203 is well known in the art and is commercially available.

As shown in fig. 7, the anti-tip wheel set of the traveling wheel assembly 2 includes an anti-tip rail 206, an anti-tip wheel 207, and a stopper pin 209, the upper end of the anti-tip rail 206 is mounted on the axle 205 of the traveling wheel 201, the stopper pin 209 is inserted into a through hole of the axle 205 to limit outward movement of the anti-tip rail 206, the anti-tip rail 206 is provided at the lower end thereof with the anti-tip wheel 207, and the anti-tip wheel 207 moves along a sliding groove of the rail 10, when the frame 1 needs to be reversed, the stopper pin 209 is pulled out, the anti-tip rail 206 can move outward and disengage the anti-tip rail 207 from the sliding groove of the rail 10, a positioning hole is provided at the upper end of the anti-tip rail 206, the positioning hole is aligned with the through hole of the axle 205 of the traveling wheel 201 when the anti-tip rail 206 moves outward, and then the stopper pin 209 is reinserted to lock the anti-tip rail 206.

As shown in fig. 7, the reversing wheel assembly 7 comprises a reversing wheel 703, a lifting screw 702 and a movable pedal 701, the lifting screw 702 is in threaded connection with the mounting base 202 of the walking wheel assembly 2, the reversing wheel 703 is arranged at the lower end of the lifting screw 702, the reversing wheel 703 can be lifted by screwing the lifting screw 702, as shown in fig. 1 to 3, the movable pedal 701 includes a straight section and a slope section, when the vehicle frame 1 is reversed, the straight section of the movable pedal 701 is placed on the rail 10, the slope section is pressed against the ground, then the carriage 1 moves to make the reversing wheel 703 above the corresponding movable pedal 701, after the worker moves the anti-tipping wheel group outwards to separate from the track 10, then, each lifting screw 702 is screwed to make each reversing wheel 703 descend to contact with the corresponding movable pedal 701, at this time, the travelling wheels 201 are lifted to be separated from the track 10, and then the frame 1 can move along the movable pedal 701. In this embodiment, the steering wheel 703 is a universal wheel.

As shown in fig. 5, in this embodiment, the vehicle frame 1 is L-shaped, and includes a cross frame 102 and a vertical frame 101, each corner end of the cross frame 102 is provided with a wheel seat 103 for mounting a road wheel 201 in each road wheel assembly 2, the vertical frame 101 is provided with a handrail 104 for facilitating manual pushing of the vehicle frame 1, and as shown in fig. 2, the vertical frame 101 is provided with a protective baffle 8 for protection.

The working principle of the invention is as follows:

when the forklift truck works, a worker can push the truck frame 1 to move along the track 10, after the forklift truck moves in place, the worker can manually operate the lifting mechanism 3 and the translation driving mechanism 5 to adjust the position of the rotary fork 6, wherein the worker drives the chain wheel 302 to lift through the manual hydraulic cylinder 301 in the lifting mechanism 3 so as to drive the chain 303 to drive the lifting sliding plate 9 to lift, the worker drives the synchronous belt 502 to rotate through the hand wheel 501 in the rotation and translation driving mechanism 5 so as to drive the translation sliding table 4 to translate, after the rotary fork 6 is adjusted in place, the fork body 601 can rotate around the center of the rotation support 602, and after the rotary fork is in place, the fork body 601 can be respectively matched and locked with the lock pin 604 and the second lock lug 603 on the fork body 601 through the limit block 405 and the first lock lug 403 on the translation sliding table 4.

The frame 1 of the invention can also realize reversing operation according to needs, when the frame 1 reverses, the movable pedals 701 are placed on the rails 10, then the frame 1 moves to enable the reversing wheels 703 to be positioned above the corresponding movable pedals 701, the anti-tipping wheel group moves outwards to be separated from the rails 10, then the lifting screws 702 are screwed to enable the reversing wheels 703 to descend to be contacted with the corresponding movable pedals 701, at the moment, the walking wheels 201 are lifted to be separated from the rails 10, then the frame 1 can transversely move to the ground along the movable pedals 701 and then move to other rails 10 according to needs. The frame can realize reversing operation by utilizing the reversing wheel assembly, and can be adjusted in time according to the existing track 10, so that the frame can be quickly arranged in different roadways.

Claims

1. The utility model provides a unpowered formula heavy load piling car that just moves which characterized in that: comprises a frame (1), an elevating mechanism (3), a lifting sliding plate (9), a translation driving mechanism (5), a translation sliding table (4), a rotary fork (6), a walking wheel component (2), a reversing wheel component (7) and a track (10), wherein the elevating mechanism (3) and the lifting sliding plate (9) are arranged on the frame (1), the lifting sliding plate (9) is driven to lift by the elevating mechanism (3), the translation driving mechanism (5) and the translation sliding table (4) are arranged on the lifting sliding plate (9), the translation sliding table (4) is driven to translate by the translation driving mechanism (5), the rotary fork (6) is arranged on the translation sliding table (4), walking wheel components (2) are arranged on two sides of the frame (1), and the walking wheel components (2) comprise walking wheels (201) and a reversing wheel group movably arranged on wheel shafts (205) of the walking wheels (201), track (10) one side is equipped with the spout, just walking wheel (201) are along track (10) remove, anti-tilt wheelset along the spout removes, and reverse wheel subassembly (7) locate reverse wheel (703) on corresponding walking wheel subassembly (2) including activity footboard (701) and liftable, and activity footboard (701) are put perpendicularly on track (10) when frame (1) switching-over to anti-tilt wheelset outwards removes and breaks away from the spout on corresponding track (10), then reverse wheel (703) descend and the contact of activity footboard (701) that corresponds, and walking wheel (201) are broken away from track (10) by the jacking simultaneously.

2. The unpowered portable heavy-duty stacking vehicle of claim 1, wherein: be equipped with grudging post (101) on frame (1), just lifting slide (9) with grudging post (101) sliding connection, elevating system (3) include manual hydraulic cylinder (301), sprocket (302) and chain (303), and manual hydraulic cylinder (301) set firmly in grudging post (101) the cylinder rod tip of manual hydraulic cylinder (301) is equipped with sprocket seat (304), and sprocket (302) are located on sprocket seat (304), grudging post (105) are equipped with in the middle part of grudging post (101), chain (303) one end is fixed in on intermediate beam (105), the other end is walked around corresponding sprocket (302) after-fixing in on lifting slide (9).

3. The unpowered portable heavy-duty stacking vehicle of claim 1, wherein: translation slip table (4) with lifting slide (9) sliding connection, translation actuating mechanism (5) include hand wheel (501), hold-in range (502), driving pulley (503) and driven pulley (505), wherein driving pulley (503) and driven pulley (505) all locate lifting slide (9) are last, driving pulley (503) pass through hand wheel (501) drive is rotated, and driving pulley (503) and driven pulley (505) pass through hold-in range (502) are connected, translation slip table (4) with hold-in range (502) link firmly.

4. The unpowered portable heavy-duty stacking vehicle of claim 1, wherein: rotatory fork (6) are including the fork body (601) and slewing bearing (602), slewing bearing (602) are fixed in on translation slip table (4), fork body (601) one end install in slewing bearing (602) are last.

5. The unpowered portable heavy-duty stacker of claim 4 wherein: translation slip table (4) one end is equipped with stopper (405), the other end is equipped with first lock ear (403), goods fork body (601) one side is equipped with telescopic lockpin (604), the opposite side is equipped with second lock ear (603), goods fork body (601) rotate the back of targetting in place, lockpin (604) on the goods fork body (601) stretch out and with translation slip table (4) go up corresponding stopper (405) inboard offset spacing, first lock ear (403) with second lock ear (603) link firmly the locking.

6. The unpowered portable heavy-duty stacker of claim 4 wherein: the free end of the translation sliding table (4) is provided with a handle (404), and the middle of the upper side of the translation sliding table (4) is provided with a slewing bearing mounting plate (401).

7. The unpowered portable heavy-duty stacking vehicle of claim 1, wherein: walking wheel subassembly (2) press from both sides (203) and clutch blocks (204) including walking wheel (201), mount pad (202), braking elbow, mount pad (202) are located on frame (1), walking wheel (201) press from both sides (203) with the braking elbow and all locate on mount pad (202), clutch blocks (204) install in the braking elbow presss from both sides (203) on, just clutch blocks (204) pass through the braking elbow presss from both sides (203) drive and compresses tightly walking wheel (201), walking wheel (201) outside is equipped with direction rim plate (208).

8. The unpowered portable heavy-duty stacking vehicle of claim 1, wherein: the anti-tipping wheel group in the walking wheel component (2) comprises an anti-tipping frame (206), an anti-tipping wheel (207) and a stop pin (209), the upper end of the anti-tipping frame (206) is arranged on a wheel shaft (205) of the travelling wheel (201), the lower end of the anti-tipping frame (206) is provided with an anti-tipping wheel (207) which moves along a sliding chute on the track (10), the blocking pin (209) is inserted into the through hole on the wheel shaft (205) to limit the outward movement of the anti-tipping frame (206), the upper end of the anti-overturning frame (206) is provided with a positioning hole, when the frame (1) is reversed, the stop pin (209) is pulled out, the anti-tipping frame (206) moves outwards to separate the anti-tipping wheel (207) from the sliding groove on the track (10), and aligning the positioning holes with through holes on the wheel shafts (205) of the road wheels (201), the stop pin (209) is then reinserted into the through hole in the axle (205).

9. The unpowered portable heavy-duty stacking vehicle of claim 1, wherein: the reversing wheel assembly (7) comprises a reversing wheel (703), a lifting screw (702) and a movable pedal (701), the lifting screw (702) is in threaded connection with the walking wheel assembly (2), the reversing wheel (703) is arranged at the lower end of the lifting screw (702), the movable pedal (701) comprises a straight section and a slope section, the straight section of the movable pedal (701) is placed on the track (10) when the frame (1) is reversed, and the slope section is abutted to the ground.

10. The unpowered portable heavy-duty stacking vehicle of claim 1, wherein: the frame (1) comprises a transverse frame (102) and a vertical frame (101), the transverse frame (102) and the vertical frame (101) are arranged in an L shape, a lifting mechanism (3) and a lifting sliding plate (9) are arranged on the vertical frame (101), handrails (104) are arranged on the vertical frame (101), and wheel seats (103) are arranged on the transverse frame (102).