CN219216291U - Cargo carrying platform applied to stacker - Google Patents

Abstract

The utility model belongs to the technical field of intelligent storage, and discloses a cargo carrying platform applied to a stacker. The cargo carrying platform applied to the stacker comprises a bearing seat, a push-pull seat and a power unit, wherein the push-pull seat is arranged on the bearing seat, and is pushed to stretch by the power unit; the push-pull seat is provided with a push-pull mechanism, the push-pull mechanism comprises a chain wheel, a chain which is tensioned on the two chain wheels, a drag hook which is arranged on the side edge of the chain, a hook part which can drive the drag hook to move to the outer side or the inner side of the goods lattice through the hook part is arranged on the side edge of the tray. The cargo carrying platform applied to the stacker provided by the utility model adopts the push-pull seat, the bearing seat and the power unit for driving the bearing seat to horizontally move to be combined, and the drag hook is used for pulling the materials in the cargo compartment into the push-pull seat or pushing the materials in the push-pull seat into the cargo compartment, so that the difficulty of material carrying is reduced, the flexibility of material carrying of the stacker is improved, the material carrying is smooth, the materials can enter and exit conveniently, and the stacking efficiency is improved.

Description

Cargo carrying platform applied to stacker

Technical Field

The utility model belongs to the technical field of intelligent storage, and particularly relates to a cargo carrying platform applied to a stacker.

Background

An automated stereoscopic warehouse is also simply referred to as an overhead warehouse, and is commonly referred to as a stereoscopic warehouse because it uses several, ten or even tens of racks to store goods, and because such a warehouse can fully utilize space to store goods.

The automatic stereoscopic warehouse mainly comprises a stereoscopic goods shelf, a rail tunnel stacker, a warehouse-in and warehouse-out material conveyor system, a size detection bar code reading system, a communication system, an automatic control system, a computer management monitoring system and the like. The automatic stereoscopic warehouse can use a first-class integrated logistics concept, adopts advanced control, bus, communication and information technologies, and performs warehouse-in and warehouse-out operation through the coordinated actions of the equipment.

In the existing stereoscopic warehouse, the stacker generally adopts fork-picking equipment to pick and place materials, namely, after the materials are supported by telescopic forks on the stacker, the materials are moved again, and the warehouse-in and warehouse-out operation of the materials is completed. The material storing and taking mode has the advantages that the material storing and taking difficulty is high, the volume and weight of the material are limited greatly, the storage and taking are inconvenient, the flexibility of carrying the material is poor, and the stacking efficiency is low.

Disclosure of Invention

Based on the above, the utility model aims to provide a cargo carrying platform applied to a stacker, which can reduce the difficulty of material entering and exiting a warehouse and improve the material storage and taking efficiency of the warehouse.

To achieve the purpose, the utility model adopts the following technical scheme:

the loading platform is applied to the stacker and used for taking and placing the trays in the cargo lattices, and comprises a bearing seat, a push-pull seat and a power unit, wherein the push-pull seat is arranged on the bearing seat, and is pushed to stretch by the power unit;

the push-pull seat is provided with a push-pull mechanism, the push-pull mechanism comprises a chain wheel, a chain which is tensioned on the two chain wheels and a draw hook which is arranged on the side edge of the chain, the side edge of the tray is provided with a hook part, and the draw hook can drive the tray to move to the outer side or the inner side of the goods lattice through hooking the hook part.

As an alternative scheme of the cargo carrying platform applied to the stacker, the number of the push-pull mechanisms is two, and the two push-pull mechanisms are respectively arranged at two sides of the push-pull seat;

the chain is provided with two drag hooks; the bending directions of the two draw hooks are opposite, one draw hook is used for driving the tray to move towards the outer side of the goods lattice, and the other draw hook is used for pushing the tray to move towards the inner side of the goods lattice.

As an alternative to a cargo bed applied to a stacker, the bottom of the pallet is provided with wheels and/or guiding structures.

As an alternative to a cargo bed applied to a stacker, a guide rail is provided between the push-pull seat and the carrying seat.

As an alternative scheme of the cargo carrying platform applied to the stacker, the carrying seat comprises a transverse part and a vertical part, the push-pull seat is positioned on the transverse part, and the vertical part is provided with a chute; the bearing seat is vertically connected with the vertical stand of the stacker through the sliding groove in a sliding way.

As an alternative to a cargo bed applied to a stacker, the power unit includes:

the deflector rod is fixed on the push-pull seat;

the rotary table, be provided with the push rod on the outer fringe lateral wall of rotary table, the push rod can be along with the rotary table forward or reverse rotation, the driving lever can be in the back and forth of push rod is stirred down reciprocating motion.

As an alternative to a cargo bed applied to a stacker, the number of push rods is two.

As an alternative scheme of the cargo carrying platform applied to the stacker, the number of the deflector rods and the number of the turntables are two, and the deflector rods and the turntables are respectively arranged on two sides of the push-pull seat.

As an alternative scheme of the cargo carrying platform applied to the stacker, the power unit further comprises a transmission shaft and a motor, the transmission shaft is fixedly connected with the shaft parts of the two turntables, and the transmission shaft is driven to rotate by the motor.

As an alternative to a cargo bed applied to a stacker, the power unit further comprises a speed reducer.

The utility model has the beneficial effects that:

the cargo carrying platform applied to the stacker provided by the utility model adopts the push-pull seat, the bearing seat and the power unit for driving the bearing seat to horizontally move to be combined, and the drag hook is used for pulling the materials in the cargo compartment into the push-pull seat or pushing the materials in the push-pull seat into the cargo compartment, so that the difficulty of material carrying is reduced, the flexibility of material carrying of the stacker is improved, the material carrying is smooth, the materials can enter and exit conveniently, and the stacking efficiency is improved.

Drawings

Fig. 1 shows a schematic overall structure of a cylindrical stereoscopic warehouse;

FIG. 2 shows a schematic view of the structure of a top rail, a bottom rail and a stacker of a cylindrical stereoscopic warehouse;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

FIG. 5 shows a schematic cross-sectional structure of a brake mechanism of a cylindrical stereoscopic warehouse;

fig. 6 is a schematic view of a pallet structure of a cargo bed applied to a stacker according to the present utility model;

FIG. 7 is a schematic perspective view of a cargo bed for a stacker according to the present utility model;

FIG. 8 is a schematic top view of a cargo bed for a stacker according to the present utility model;

FIG. 9 is a schematic diagram of a front view of a cargo bed for a stacker according to the present utility model;

FIG. 10 is a schematic view of a power unit for a cargo bed for a stacker according to the present utility model;

fig. 11 is a schematic diagram of a power unit displacement principle of a cargo table applied to a stacker.

In the figure:

1-a goods shelf;

2-day rails;

3-ground rails; 30-bar code plate;

4-stacking machine;

40-stand;

41-a walking driving mechanism;

42-loading platform; 420-a bearing seat; 4200—a transverse portion; 4201-vertical part; 42011-chute; 4202-guide rail; 421-push-pull seat; 4211-sprocket; 4212-a chain; 4213-retractor; 422-power unit; 4220-an electric motor; 4221-a speed reducer; 4222-a drive shaft; 4223-a turntable; 4224-push rod; 4225-a toggle lever;

43-lifting driving mechanism;

44-a brake mechanism; 440-mounting blocks; 4401-a clamping hole; 441-upper slider; 4411-a stop lever; 442-lower slider; 443-middle slide block; 444-first roller; 445-push-pull electromagnet; 446-a second roller;

45-a walking wheel box; 451-side guide wheels;

5-a tray; 50-hook part; 51-wheels.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a cylindrical stereoscopic warehouse, goods shelves are annular structure, and the stacker is around goods shelves periphery removal, gets through the cargo bed of liftable on the stacker and puts the goods to in solving current warehouse structure, the transport vehicle passageway occupies shelf area, and space utilization is low, and the storing stacks highly limited, the inconvenient problem of goods access.

Fig. 1 is a schematic diagram of the overall structure of a cylindrical stereoscopic warehouse provided by the utility model, and referring to fig. 1, the cylindrical stereoscopic warehouse provided by the embodiment includes a shelf 1, an annular rail and a stacker 4, wherein the shelf 1 is of a multi-layer cylindrical structure as a whole, a plurality of goods shelves (namely, the storage positions for stock) are arranged on the outer wall of the shelf 1, and each goods shelf in each layer is arranged according to a polar coordinate system. The outside of the goods lattice is an opening, and a tray 5 for bearing goods is arranged in the goods lattice. Depending on the production requirements, the shelf 1 may be designed as a pallet 5 vertical warehouse (as shown in fig. 2) or a bin vertical warehouse, which belongs to the structure of the warehouse logistics shelf 1 in the prior art, and therefore, the details are not described herein.

The annular track is arranged on the outer ring of the goods shelf 1 and comprises a top track 2 and a ground track 3, the top track 2 and the ground track 3 are circular tracks, the top track 2 is positioned at the top of the goods shelf 1, the ground track 3 is positioned at the bottom of the goods shelf 1, and the stacker 4 is arranged between the top track 2 and the ground track 3 and moves along the top track 2 and the ground track 3; in addition, in order to improve the running stability of the stacker 4, the top rail 2 and the ground rail 3 are both in a groove structure, and the stacker 4 walks in the groove structures of the top rail 2 and the ground rail 3 through walking wheels (i.e., a walking wheel box 45 described below). In order to realize the accurate positioning of the stacker 4, an annular bar code plate 30 and a reading head are also arranged on the ground rail 3 and used for positioning in circular motion.

The stacker 4 comprises a stand 40 and a cargo carrying platform 42, wherein the stand 40 adopts a truss structure so as to observe the running state of a traction type lifting mechanism and installation and maintenance; as shown in fig. 3, a traveling wheel box 45 is mounted at one end of the stand 40, the traveling wheel box 45 is driven by a traveling driving mechanism 41, and a driven traveling wheel is mounted at the other end of the stand 40, and the traveling wheel box 45 and the driven traveling wheel are connected to the head rail 2 and the ground rail 3, respectively, so that the stand 40 can move along the circular rail. Further, side guide wheels 451 may be installed at both sides of the traveling wheel case 45 and the driven traveling wheel to ensure that the stand 40 can smoothly move along the circumferential direction of the endless track. A vertical sliding rail is laid on one vertical side of the vertical frame 40, and the cargo carrying platform 42 is slidably connected to the vertical sliding rail and can be lifted under the drive of the lifting driving mechanism 43; the loading table 42 is provided with a push-pull seat 421, and the push-pull seat 421 can extend and retract in the radial direction of the shelf 1 to take and place the tray 5 in the cargo compartment.

In this case, the lifting driving mechanism 43 may be a traction type lifting mechanism, which belongs to a lifting form widely adopted in industries such as a vertical warehouse and an elevator, so that details will not be described herein, and in other embodiments, other existing lifting driving mechanisms 43 may be selected to lift the cargo table 42 as required.

According to the cylindrical stereoscopic warehouse provided by the embodiment, the stacker 4 is arranged on the periphery of the annular goods shelf 1, so that goods can be put in storage from the periphery of the goods shelf 1, a goods channel is not required to be reserved in the goods shelf 1, the structure is compact, and the space utilization rate is higher; the goods are put in storage from the periphery of the goods shelf 1, the limitation on the size of the goods is smaller, the goods can be put in storage from multiple directions, the allocation of transport vehicles is facilitated, and the flexibility of goods storage and taking is improved; the stacker 4 sets up between sky rail 2 and ground rail 3, can fully guarantee the stability of stacker 4 operation, and then guarantees the stacking height of goods shelves 1 and storing, further promotes space utilization.

Fig. 4 and 5 show an overall structure diagram and a cross-sectional structure diagram of the brake mechanism 44, respectively, and referring to fig. 4 and 5, in this embodiment, the brake mechanism 44 is mounted at an end of the stand 40, and is used for braking the circumferential running of the stacker 4, that is, when the stacker 4 overspeed or brakes, the brake mechanism 44 can assist the stacker 4 to brake steadily, so as to improve the running safety of the stacker 4. Preferably, the brake stopping mechanism 44 is disposed at the end of the stand 40 where the driven traveling wheel is located, so as to avoid shaking of the end due to inertia during overspeed or braking due to too far from the traveling wheel box 45.

Specifically, the brake stopping mechanism 44 includes a mounting block 440, an upper slider 441, a lower slider 442, a middle slider 443, a first roller 444, a push-pull electromagnet 445, and a second roller 446, wherein:

the mounting block 440 is provided with a vertical guide groove and a transverse guide groove which are arranged in a crossing way, and the top of the vertical guide groove is an opening.

The upper sliding block 441 and the lower sliding block 442 are both arranged in the vertical guide groove, adjacent ends of the upper sliding block 441 and the lower sliding block 442 are inclined planes which incline in the same direction, and the upper sliding block 441 and the lower sliding block 442 can slide up and down along the vertical guide groove; in order to avoid the upper slider 441 from falling out of the top opening of the vertical guide slot, in this embodiment, the upper slider 441 is provided with a clamping hole 4401, the clamping hole 4401 is a vertical long hole, a limiting rod 4411 is fixed in the vertical guide slot, and the limiting rod 4411 is inserted into the clamping hole 4401 to limit the moving distance of the upper slider 441. Of course, other limiting methods can be used in other embodiments to avoid the upper slider 441 from falling out.

The middle slide 443 is disposed in the transverse guide slot, a rectangular hole penetrating up and down is formed in the middle slide 443, a first roller 444 is disposed in the rectangular hole, the first roller 444 is rotationally connected with the middle slide 443 through a rotating shaft, an outer annular wall of the first roller 444 is connected with end inclined surfaces of the upper slide 441 and the lower slide 442, and the middle slide 443 is driven by a push-pull electromagnet 445 or other existing devices disposed on a side edge of the middle slide 443 so as to enable the middle slide 443 to slide horizontally along the transverse guide slot to push the upper slide 441 and the lower slide 442 to move up and down.

The second roller 446 is rotatably connected to the upper slider 441 and extends from the top opening of the vertical guide slot, and the extended second roller 446 can abut against the annular track under the driving of the upper slider 441.

In this embodiment, the upper slider 441 is used to drive the second roller 446 to move up and down, and the lower slider 442 is used to support in opposite directions to balance the force applied to the first roller 444.

In this embodiment, springs are disposed between the upper slider 441 and the lower slider 442 and the mounting block 440, and the upper slider 441 and the lower slider 442 are pushed by the springs to abut against the first roller 444. The arrangement of the springs in fig. 4 and 5 of the present utility model is exemplarily provided, that is, a spring in a stretched state is provided between the top of the upper slider 441 and the top of the mounting block 440, so that the upper slider 441 can be pulled to move downward; a spring in a compressed state is arranged between the bottom end of the lower sliding block 442 and the end wall of the vertical guide groove, and can push the lower sliding block 442 to move upwards. In other embodiments, other spring retention means may be employed to accomplish this.

Normally, the second roller 446 is separated from the headrail 2 or rolls along the headrail 2. When braking is needed, the push-pull electromagnet 445 pulls the middle sliding block 443, and the first roller 444 pushes the upper sliding block 441 to move upwards by the inclined plane, so that the second roller 446 is pressed on the top rail 2, and the braking and stopping effects are achieved. After braking is finished, the push-pull electromagnet 445 reversely pushes the middle slide 443, so that the upper slide 441 descends, and returns to the position before braking, and the braking effect is released.

Fig. 6 is a schematic structural view of a tray 5 of the cylindrical stereoscopic warehouse provided by the present utility model, fig. 7 to fig. 10 are schematic structural views of a loading platform 42 of the cylindrical stereoscopic warehouse provided by the present utility model, and referring to fig. 6 to fig. 10, in this embodiment, the loading platform 42 further includes a loading seat 420 and a power unit 422 in addition to a push-pull seat 421, the push-pull seat 421 is disposed on the loading seat 420, and is pushed to stretch by the power unit 422.

Specifically, the carrier 420 includes a horizontal portion 4200 and a vertical portion 4201, the push-pull seat 421 is located on the horizontal portion 4200, a sliding groove 42011 that is slidably matched with a vertical sliding rail on the vertical frame 40 is formed on a side of the vertical portion 4201 facing the vertical frame 40, and the sliding groove 42011 can slide up and down along the vertical sliding rail, so as to drive the cargo platform 42 to move up and down.

Preferably, a guide rail 4202 is provided between the push-pull seat 421 and the carrier seat 420, and the guide rail 4202 extends toward the center of the shelf 1. When the stacker 4 moves to any bin, the extension of the rail 4202 is parallel to the radial direction of the polar coordinate system of the bin to facilitate the loading of material from the bin or into the bin by the loading station 42. Further, the sliding seat 421 and the horizontal portion 4200, and the sliding seat 421 and the vertical portion 4201 are respectively provided with a guide rail 4202 therebetween, so as to ensure the stability of the movement of the sliding seat 421.

The power unit 422 includes a shift lever 4225 and a rotary table 4223, wherein the shift lever 4225 is fixed on the push-pull seat 421, and may be located on the bottom or side wall of the push-pull seat 421, and a push rod 4224 is disposed on the outer edge side wall of the rotary table 4223, as shown in fig. 11, the push rod 4224 can rotate forward or backward along with the rotary table 4223, and the shift lever 4225 can reciprocate under the back and forth shifting of the push rod 4224. Preferably, in the present embodiment, the number of push rods 4224 is two to reduce the operation period of the rotary table 4223 for performing the forward and reverse pushing operations.

In order to make the push-pull seat 421 stably run, in this embodiment, the number of the shift levers 4225 and the rotary table 4223 is two, and the two sets of shift levers 4225 and the rotary table 4223 are respectively disposed at two sides of the push-pull seat 421. In order to drive the two turntables 4223 to run synchronously, the power unit 422 further comprises a transmission shaft 4222 and a motor 4220, wherein the transmission shaft 4222 is fixedly connected with shaft portions of the two turntables 4223, and is driven to rotate by the motor 4220 so as to drive the push-pull seat 421 to move forwards and backwards.

Further, the power unit 422 is further provided with a speed reducer 4221, a power output shaft of the motor 4220 is connected with a force input shaft of the speed reducer 4221, the speed reducer 4221 has a double output shaft, and two output shafts of the speed reducer 4221 are respectively connected with two turntables 4223 in a transmission manner through a transmission shaft 4222.

Compared with the conventional telescopic translational driving mode such as the electric push rod 4224, the power unit 422 provided in the embodiment has simpler structure, more sufficient power and longer service life.

In the use process, the motor 4220 outputs power, and after the power is transmitted through the speed reducer 4221 and the transmission shaft 4222, the rotary table 4223 can be driven to rotate, and then the push rod 4224 is driven to rotate, and the rotation of the push rod 4224 can push the shift lever 4225 to move, so that the push-pull seat 421 moves horizontally.

With continued reference to fig. 6 and 7, in this embodiment, a push-pull mechanism is provided on the push-pull seat 421, and the push-pull mechanism includes a sprocket 4211, a chain 4212 stretched over the two sprockets 4211, and a hook 4213 provided on a side of the chain 4212, where a hook portion 50 is provided on a side of the tray 5, and the hook 4213 can drive the tray 5 to move to the outside or the inside of the cargo compartment through the hook portion 50.

In the working process, after the cargo table 42 moves to a certain cargo compartment, the power unit 422 works to drive the push-pull seat 421 to approach the cargo compartment; the push-pull mechanism then operates to pull the tray 5 in the cargo compartment into the push-pull seat 421 or to push the tray 5 in the push-pull seat 421 into the cargo compartment.

Specifically, in this embodiment, the drag hook 4213 extends from the side edge of the chain 4212 to the inner side of the push-pull seat 421, and is bent into a hook parallel to the chain 4212; the number of the drag hooks 4213 on the chain 4212 can be two or one. The number of the pulling hooks 4213 is preferably two, so as to shorten the running period of the push-pull mechanism for performing push-pull operation. When the number of the drag hooks 4213 is two, the bending directions of the two drag hooks 4213 may be the same or opposite:

when the bending directions of the two pulling hooks 4213 are the same, the back of the opening of the pulling hook 4213 is used for pushing the push-pull seat 421, namely, the tray 5 is pushed to move towards the inner side of the cargo compartment by abutting the back of the opening of the pulling hook 4213 on the hook part 50 along with the forward running of the chain wheel 4211, and then the tray 5 is driven to move towards the outer side of the cargo compartment by hooking the hook part 50 along with the reverse running of the chain wheel 4211.

When the bending directions of the two draw hooks 4213 are opposite, the pulling of the material into the push-pull seat 421 and the pushing of the material into the cargo compartment are completed through the hooking action, namely, one draw hook 4213 is used for driving the tray 5 to move towards the outer side of the cargo compartment, and the other draw hook 4213 is used for pushing the tray 5 to move towards the inner side of the cargo compartment.

It should be noted that, in the process of delivering, the drag hook 4213 can move the tray 5 into the push-pull seat 421, and also can play a role in limiting the tray 5, so as to avoid the tray 5 from moving towards the opening side of the push-pull seat 421.

Preferably, in the present embodiment, the number of push-pull mechanisms is two, the two push-pull mechanisms are respectively disposed on two sides of the push-pull seat 421, and the sprockets 4211 disposed on two sides are driven by the motor 4220 to realize synchronous operation with the existing structure.

The tray 5 is limited in position, and two sets of push-pull mechanisms are convenient to set, the push-pull seat 421 provided by the embodiment is in a dustpan-shaped structure, and one side of the push-pull seat 421 facing the goods shelf 1 is an opening.

To ensure smooth running of the tray 5, in this embodiment, wheels 51 and/or guiding structures, preferably channels, are provided at the bottom of the tray 5 to guide the wheels 51 or the guide bars provided at the bottom of the tray 5 to walk. Further, the open end of the channel on the side of the shelf 1 is provided with a flared mouth structure for facilitating the entry of the wheels 51 or guide bars.

The cargo carrying platform 42 is combined with the push-pull seat 421, the bearing seat 420 and the power unit 422 for driving the bearing seat 420 to horizontally move, and the drag hook 4213 is used for pulling materials in the cargo compartment into the push-pull seat 421 or pushing the materials in the push-pull seat 421 into the cargo compartment, so that the difficulty of material carrying is reduced, the flexibility of carrying materials of the stacker 4 is improved, the carrying is smooth, the materials can enter and exit conveniently, and the stacking efficiency is improved.

Note that: the fixing manner which is not explicitly described in the text can be selected from common fixing connection manners such as threaded connection, welding or bonding according to the requirement.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The loading platform is applied to a stacker and is used for taking and placing trays (5) in a cargo grid, and is characterized in that the loading platform (42) comprises a bearing seat (420), a push-pull seat (421) and a power unit (422), wherein the push-pull seat (421) is arranged on the bearing seat (420), and is pushed to stretch by the power unit (422);

the push-pull mechanism is arranged on the push-pull seat (421) and comprises a chain wheel (4211), a chain (4212) which is tensioned on the two chain wheels (4211) and a draw hook (4213) which is arranged on the side edge of the chain (4212), a hook part (50) is arranged on the side edge of the tray (5), and the draw hook (4213) can drive the tray (5) to move towards the outer side or the inner side of the goods lattice through hooking the hook part (50).

2. The cargo bed for a stacker according to claim 1, wherein the number of the push-pull mechanisms is two, and the two push-pull mechanisms are respectively arranged at two sides of the push-pull seat (421);

two drag hooks (4213) are arranged on the chain (4212); the bending directions of the two draw hooks (4213) are opposite, one draw hook (4213) is used for driving the tray (5) to move towards the outer side of the goods lattice, and the other draw hook (4213) is used for pushing the tray (5) to move towards the inner side of the goods lattice.

3. Cargo bed for a stacker according to claim 1, wherein the bottom of the pallet (5) is provided with wheels (51) and/or guiding structures.

4. The cargo bed for a stacker according to claim 1, wherein a rail (4202) is provided between the push-pull seat (421) and the carrier seat (420).

5. The cargo bed for a stacker according to claim 1, wherein the carrying base (420) includes a transverse portion (4200) and a vertical portion (4201), the push-pull base (421) is located on the transverse portion (4200), and a chute (42011) is formed in the vertical portion (4201); the bearing seat (420) is vertically connected with the vertical stand (40) of the stacker (4) in a sliding manner through the sliding groove (42011).

6. The cargo bed for a stacker according to claim 1, wherein said power unit (422) comprises:

a deflector rod (4225), wherein the deflector rod (4225) is fixed on the push-pull seat (421);

the rotary table (4223), be provided with push rod (4224) on the outer fringe lateral wall of rotary table (4223), push rod (4224) can be along with rotary table (4223) forward or reverse rotation, driving lever (4225) can be in the back and forth of push rod (4224) is stirred down reciprocating motion.

7. The cargo bed for a stacker according to claim 6, wherein the number of push rods (4224) is two.

8. The cargo bed for a stacker according to claim 6, wherein the number of the shift levers (4225) and the turntables (4223) is two, and the two shift levers (4225) and the turntables (4223) are respectively disposed on two sides of the push-pull seat (421).

9. The cargo bed for a stacker according to claim 8, wherein the power unit (422) further comprises a transmission shaft (4222) and a motor (4220), the transmission shaft (4222) is fixedly connected with shaft portions of the two turntables (4223), and the transmission shaft (4222) is rotated by the motor (4220).

10. The cargo bed for a stacker according to claim 9 wherein said power unit (422) further comprises a speed reducer (4221).

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