CN218950124U

CN218950124U - Anti-swing device, stacker and access system

Info

Publication number: CN218950124U
Application number: CN202223103413.1U
Authority: CN
Inventors: 李洪涛
Original assignee: Beijing Jingdong Qianshi Technology Co Ltd
Current assignee: Beijing Jingdong Qianshi Technology Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-02
Anticipated expiration: 2032-11-22

Abstract

The utility model relates to the technical field of intelligent logistics, in particular to an anti-swing device, a stacker and an access system. The anti-swing device comprises a mounting seat, a first roller assembly, a first elastic assembly, a second roller assembly, a position detection mechanism and a driving mechanism, wherein the mounting seat is connected with the upper portion of a stand column, the first roller assembly is connected with the mounting seat through the first elastic assembly, the first roller assembly can float along the upper and lower directions relative to the mounting seat, the second roller assembly is arranged on the mounting seat and is located on one side, far away from the stand column, of the first roller assembly, the upper end of the second roller assembly is lower than the upper end of the first roller assembly, and the driving mechanism is used for driving the second roller assembly to move upwards when the position detection mechanism detects that the downward movement of the first roller assembly exceeds a preset distance, so that small or large-amplitude swing of the stacker is eliminated. The stacker can eliminate the swing of smaller or larger amplitude. The goods storing and taking system can improve goods storing and taking efficiency.

Description

Anti-swing device, stacker and access system

Technical Field

The utility model relates to the technical field of intelligent logistics, in particular to an anti-swing device, a stacker and an access system.

Background

Automated warehouse development is rapid, and the stacker is important automated goods access equipment therein, and is widely applied, and meanwhile, in order to adapt to the improvement of warehouse efficiency, the operation speed of the stacker also shows an increasing trend.

In the walking process of the stacker, particularly a single-upright stacker, due to inertia, the upper end of an upright of the stacker can swing, and the higher the stacker is, the more serious the swing phenomenon is, if goods are taken and put in the swing process, the danger is high; if the swing is stopped and then other actions are performed, the overall operation efficiency of the stacker is reduced.

Although some anti-swing devices can be applied to the existing stacker, the existing anti-swing devices can only prevent the stacker from swinging in a small amplitude, and the existing anti-swing devices cannot eliminate the stacker from swinging in a large amplitude.

Therefore, there is a need to design a new anti-swing device, a stacker and an access system to improve the above-mentioned problems.

Disclosure of Invention

The first object of the utility model is to provide an anti-swing device which can eliminate not only the swing of a stacker with smaller amplitude, but also the swing of the stacker with larger amplitude, and has better effect of eliminating the swing of the stacker with different degrees.

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

an anti-sway device comprising:

the mounting seat is used for being connected with the upper part of the upright post of the stacker;

the first roller assembly is connected with the mounting seat through the first elastic assembly, and can float along the up-down direction relative to the mounting seat;

the second roller assembly is arranged on the mounting seat and is positioned at one side of the first roller assembly away from the upright post, and the upper end of the second roller assembly is lower than the upper end of the first roller assembly;

the driving mechanism is configured to drive the second roller assembly to move upwards to abut against the head rail when the position detection mechanism detects that the first roller assembly moves downwards beyond a preset distance.

Preferably, the first elastic component includes:

the first guide piece comprises a first guide part and a first limiting part, the lower end of the first guide part is fixedly connected with the mounting seat, the upper end of the first guide part is arranged in a sliding penetrating manner on the first roller assembly and can extend out of the first roller assembly, and the upper end of the first guide part is fixed with the first limiting part; and

the first spring is sleeved on the periphery of the first guide part and is compressed between the mounting seat and the first roller assembly.

Preferably, the second roller assembly includes:

the connecting plate is connected with the output end of the driving mechanism;

the roller mechanism is connected with the connecting plate through the second elastic component, and the roller mechanism can float along the up-down direction relative to the connecting plate.

Preferably, the second elastic component includes:

the second guide piece comprises a second guide part and a second limiting part, the lower end of the second guide part is fixedly connected with the connecting plate, the upper end of the second guide part is arranged in a sliding penetrating manner on the roller mechanism and can extend out of the roller mechanism, and the upper end of the second guide part is fixed with the second limiting part; and the second spring is sleeved on the periphery of the second guide part and is compressed between the connecting plate and the roller mechanism.

As a preferred solution, the roller mechanism includes:

a first bracket;

the lower end of the first shaft end baffle is connected with the first bracket;

the end part of the first roller shaft is fixedly connected with the first shaft end baffle; and

the first roller shaft penetrates through the axle center of the first roller, and the first roller can rotate around the first roller shaft.

Preferably, the first shaft end baffle is provided in two, and the first roller shaft comprises:

the first roller shaft body comprises a first limiting piece and a first shaft part, two ends of the first shaft part are fixedly connected with the two first shaft end baffles respectively, the first limiting piece is abutted to the outer side of one first shaft end baffle, and the first shaft part penetrates through the axle center of the first roller; and

the first shaft end baffle plate is fixedly connected with one end of the first shaft part, which is far away from the first limiting part, and is abutted against the outer side of the other first shaft end baffle plate.

Preferably, the position detecting mechanism comprises a travel switch and a switch triggering piece, one of the travel switch and the switch triggering piece is arranged on the mounting seat, the other of the travel switch and the switch triggering piece is arranged on the first roller assembly, and the switch triggering piece can trigger the travel switch to be closed.

A second object of the present utility model is to provide a stacker that eliminates rocking of the stacker to a lesser or greater extent.

the stacker comprises a stand column, and further comprises the anti-swing device, wherein the anti-swing device is arranged on the upper portion of the stand column.

As an optimal scheme, the anti-swing devices are arranged on two sides of the upright post along the movement direction of the stacker.

A third object of the present utility model is to provide an access system capable of improving the efficiency of goods access.

an access system comprising a stereoscopic warehouse, the access system further comprising a stacker as described above, the stacker being capable of shuttling in the stereoscopic warehouse and effecting picking and placing of goods.

The utility model has the beneficial effects that:

the utility model provides an anti-swing device which comprises a mounting seat, a first roller assembly, a first elastic assembly, a second roller assembly, a position detection mechanism and a driving mechanism, wherein the mounting seat is connected with the upper part of a stand column, the first roller assembly is connected with the mounting seat through the first elastic assembly, the first roller assembly can float along the up-down direction relative to the mounting seat, the second roller assembly is arranged on the mounting seat and is positioned on one side of the first roller assembly far away from the stand column, the upper end of the second roller assembly is lower than the upper end of the first roller assembly, and the driving mechanism is used for driving the second roller assembly to move upwards to be abutted with a top rail when the position detection mechanism detects that the first roller assembly moves downwards beyond a preset distance.

In the walking process of the stacker, when the stand column swings in a small amplitude, the upper end of the second roller assembly is lower than the upper end of the first roller assembly, as shown in the figure, a delta H interval is formed between the upper end of the second roller assembly and the upper end of the first roller assembly, only the first roller assembly is attached to the top rail, and the second roller assembly cannot touch the top rail. The first roller assembly can be propped against the lower surface of the top rail due to the action of the precompression (namely upward acting force) of the first elastic assembly, and when the upright post swings slightly to one side, the first roller assembly at the side can play a role in preventing the stacker from swinging to the side, so that the small swing of the stacker is prevented. The pre-pressure of the first roller assembly can also prevent the stacker from vibrating or swinging to a large extent during braking.

When the swing amplitude of the upright post is increased, the degree of floating of the first roller assembly along the up-down direction relative to the mounting seat is increased, when the position detection mechanism detects that the downward movement of the first roller assembly exceeds the preset distance, the driving mechanism drives the second roller assembly to move upwards to be abutted to the top rail, and the second roller assembly is far away from the upright post, so that the anti-swing efficiency generated by the second roller assembly is larger.

The anti-swing device can eliminate the swing of the stacker by a small extent and the swing of the stacker by a large extent, and has good effect of eliminating the swing of the stacker with different degrees. In the process, the stacker does not need to be decelerated, so that the goods storing and taking efficiency of the stacker is not affected.

The stacker provided by the utility model can eliminate the swing of the stacker with smaller amplitude and the swing of the stacker with larger amplitude, and has better effect of eliminating the swing of the stacker with different degrees. In the process, the stacker does not need to be decelerated, so that the goods storing and taking efficiency of the stacker is not affected.

The storage and taking system provided by the utility model comprises the three-dimensional warehouse and the stacker as above, and can improve the storage and taking efficiency.

Drawings

FIG. 1 is a schematic diagram of an access system according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an anti-swing device according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a partial structure of an access system according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of an anti-swing device according to an embodiment of the present utility model;

FIG. 5 is an exploded view of a first roller assembly according to an embodiment of the present utility model;

fig. 6 is an exploded view of a second roller assembly according to an embodiment of the present utility model.

In the figure:

10000. an access system;

1000. a stacker; 2000. a top rail; 3000. a ground rail;

100. an anti-sway device; 10. a mounting base; 20. a first roller assembly; 21. a second bracket; 22. a second axial end baffle; 23. a second roller shaft; 231. a second roller shaft body; 2311. a second limiting piece; 2312. a second shaft portion; 232. a second shaft end baffle; 24. a second roller; 30. a first elastic component; 31. a first guide; 311. a first guide part; 312. a first limit part; 32. a first spring; 40. a second roller assembly; 41. a connecting plate; 42. a roller mechanism; 421. a first bracket; 422. a first shaft end baffle; 423. a first roller shaft; 4231. a first roller shaft body; 42311. a first limiting member; 42312. a first shaft portion; 4232. a first shaft end baffle; 424. a first roller; 43. a second elastic component; 431. a second guide; 4311. a second guide part; 4312. a second limit part; 432. a second spring; 50. a position detecting mechanism; 51. a travel switch; 52. a switch trigger; 60. a driving mechanism;

200. a column; 300. a cargo bed; 400. a lifting device; 500. and a walking device.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and the embodiments. 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 drawings related to the present utility model are shown.

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

As shown in fig. 1, the present embodiment provides an access system 10000, where the access system 10000 includes a three-dimensional warehouse, a stacker 1000, a top rail 2000 and a ground rail 3000, the three-dimensional warehouse includes at least two three-dimensional shelves arranged at intervals along a left-right direction, the at least two three-dimensional shelves are arranged on the ground and extend along a front-rear direction, a roadway is formed between adjacent three-dimensional shelves, and the three-dimensional shelves include a storage space for placing goods. The stacker 1000 can shuttle in the tunnel and pick up and place goods to the storage place, and the actions of delivering and delivering the goods into and out of the warehouse are completed. Specifically, be provided with a plurality of storage goods positions on every three-dimensional goods shelves, a plurality of storage goods positions are the matrix arrangement in upper and lower front and back plane, and three-dimensional storehouse can realize the storage to the accomodating of more goods.

As shown in fig. 1 and 2, the stacker 1000 includes a stand 200, a cargo carrying platform 300, a lifting device 400 and a travelling device 500, the cargo carrying platform 300 is disposed on the stand 200 and is used for picking and placing cargoes, a top rail 2000 and a ground rail 3000 are both extended along a front-back direction and are disposed at intervals along an up-down direction, the top rail 2000 and the ground rail 3000 are respectively disposed on the upper and lower sides of the stand 200, and the stand 200 drives the cargo carrying platform 300 to move along an extension direction of the top rail 2000 assembly and an extension direction of the ground rail 3000 assembly.

As shown in fig. 1, the lifting device 400 is used to drive the cargo bed 300 to move in an up-and-down direction. Specifically, the lifting device 400 includes a driving motor, a wire rope and a plurality of pulleys, wherein the pulleys and the driving motor are all arranged on the upright 200, one end of the wire rope is fixedly connected with the cargo carrying platform 300, the other end of the wire rope is fixedly connected with the output end of the driving motor, the wire rope sequentially bypasses the periphery of the pulleys, and the movement of the cargo carrying platform 300 along the up-down direction relative to the upright 200 is realized through the hoisting action of the driving motor on the wire rope, so that the adjustment of the position of the cargo carrying platform 300 along the up-down direction is realized. As shown in fig. 1, the running gear 500 is disposed at the bottom end of the upright 200 and can drive the upright 200 and the cargo platform 300 to move along the ground rail 3000.

During the walking process of the stacker 1000, especially a single-column stacker, due to inertia, the upper end of the column 200 can swing, and the higher the stacker 1000 is, the more serious the swing phenomenon is, if the stacker is taken and put in the swing process, the danger is that; if the swing is stopped and then another operation is performed, the overall operation efficiency of the stacker 1000 is lowered.

As shown in fig. 1 to 3, the stacker 1000 of the present embodiment further includes an anti-sway device 100, wherein the anti-sway device 100 is disposed at an upper portion of the upright post 200, and when the upright post 200 sway, the anti-sway device 100 cooperates with the top rail 2000 thereof to prevent the stacker 1000 from tipping, and also to prevent the stacker 1000 from vibrating or swaying to a large extent during braking.

Although some anti-sway devices may be applied to the existing stacker 1000, the existing anti-sway devices only can prevent the stacker 1000 from swaying by a small extent, and the existing anti-sway devices cannot eliminate the large-amplitude swaying of the stacker 1000.

In order to solve the above problems, as shown in fig. 1 to 3, the anti-sway device 100 comprises a mounting base 10, a first roller assembly 20, a first elastic assembly 30, a second roller assembly 40, a position detection mechanism 50 and a driving mechanism 60, wherein the mounting base 10 is connected with the upper portion of the upright post 200, the first roller assembly 20 is connected with the mounting base 10 through the first elastic assembly 30, the first roller assembly 20 can float along the up-down direction relative to the mounting base 10, the second roller assembly 40 is arranged on the mounting base 10 and is positioned on one side of the first roller assembly 20 away from the upright post 200, the upper end of the second roller assembly 40 is lower than the upper end of the first roller assembly 20, and the driving mechanism 60 is used for driving the second roller assembly 40 to move upwards to be in abutment with the top rail 2000 when the position detection mechanism 50 detects that the first roller assembly 20 moves downwards beyond a preset distance.

In the walking process of the stacker 1000, when the upright post 200 swings slightly, the upper end of the second roller assembly 40 is lower than the upper end of the first roller assembly 20, as shown in fig. 3, a distance Δh is formed between the upper end of the second roller assembly 40 and the upper end of the first roller assembly 20, only the first roller assembly 20 is attached to the top rail 2000, and the second roller assembly 40 cannot touch the top rail 2000. The first roller assembly 20 can be propped against the lower surface of the top rail 2000 due to the pre-compression (i.e. upward acting force) of the first elastic assembly 30, and when the upright post 200 swings slightly to one side, the first roller assembly 20 on this side can prevent the stacker 1000 from swinging to this side, thereby preventing the stacker 1000 from swinging slightly. The pre-pressure by the first roller assembly 20 also prevents the stacker 1000 from vibrating or rocking to a large extent during braking. In addition, the upper portion of the upright post 200 is connected with the mounting seat 10, so that the pre-pressure of the first elastic assembly 30 can also act on the stacker 1000, so that the stacker 1000 is also subjected to downward acting force, and the pre-pressure can offset a part of inertial force, thereby reducing the amplitude and time of vibration or swing of the stacker 1000, reducing the fatigue load of the stacker 1000, and prolonging the service life of the stacker 1000. In addition, the vibration amplitude and the swing time of the stacker 1000 are reduced, the positioning stability time of the stacker 1000 can be reduced, the time for taking and placing cargoes on the stacker 1000 is reduced, and the storage efficiency is improved.

When the swing amplitude of the upright post 200 is increased, the floating degree of the first roller assembly 20 relative to the mounting seat 10 along the up-down direction is increased, and when the position detecting mechanism 50 detects that the first roller assembly 20 moves downwards beyond the preset distance, the driving mechanism 60 drives the second roller assembly 40 to move upwards to be abutted with the top rail 2000, and the second roller assembly 40 is far away from the upright post 200, so that the anti-swing effect generated by the second roller assembly 40 is greater.

The anti-swing device 100 of the embodiment can eliminate the swing of the stacker 1000 in a smaller amplitude, and can also eliminate the swing of the stacker 1000 in a larger amplitude, and has better effect of eliminating the swing of the stacker 1000 in different degrees. In this process, the stacker 1000 does not need to be decelerated, and therefore the loading and unloading efficiency of the stacker 1000 is not affected.

Specifically, the stacker 1000 of the present application further includes a controller electrically connected to the position detecting mechanism 50 and the driving mechanism 60, respectively, so as to realize signal transmission between the position detecting mechanism 50 and the driving mechanism 60. If the swing amplitude of the stacker 1000 decreases, the position detecting mechanism 50 detects that the first roller assembly 20 returns to the initial position, the controller may send a signal to the driving mechanism 60, and the driving mechanism 60 drives to descend and return to its initial position, and returns to a state where only the first roller assembly 20 contacts the headrail 2000 in the small-amplitude swing mode. If the swing state of the stacker 1000 does not drop to the small swing state after a certain set time (for example, 5 seconds) is exceeded, the controller determines that an abnormal condition occurs, and the controller simultaneously controls the traveling device 500 to slow down, and finally eliminates the swing phenomenon of the stacker 1000.

As described above, the stacker of this embodiment performs the anti-swing intervention in stages according to the swing condition, so that the anti-swing effect is good, and the operation efficiency of the stacker 1000 is not substantially affected in the anti-swing process.

As shown in fig. 1 and 2, the anti-swing devices 100 are disposed on two sides of the upright post 200 along the movement direction of the stacker 1000, so that the stacker 1000 can be effectively prevented from swinging forward or backward.

Referring to fig. 4 and 5, the structure of the first elastic assembly 30 is described, as shown in fig. 4 and 5, the first elastic assembly 30 includes a first guide member 31 and a first spring 32, the first guide member 31 includes a first guide portion 311 and a first limiting portion 312, the lower end of the first guide portion 311 is fixedly connected with the mounting base 10, the upper end of the first guide portion 311 is slidably disposed through the first roller assembly 20 and can extend out of the first roller assembly 20, the upper end of the first guide portion 311 is fixed with the first limiting portion 312, the first spring 32 is sleeved on the periphery of the first guide portion 311, and the first spring 32 is compressed between the mounting base 10 and the first roller assembly 20. By providing the first guide 31, it is ensured that the first spring 32 can be elastically deformed in the up-down direction, so that the elastic force (pre-pressing force) released by the deformation of the first spring 32 acts only in the vertical direction, thereby preventing the stacker 1000 from vibrating or swinging. Wherein, the lower extreme of first guiding portion 311 can pass through screw thread fixed connection with mount pad 10, is convenient for realize the quick assembly disassembly of first guiding portion 311 and mount pad 10, is convenient for realize the quick assembly disassembly to first guide 31.

The structure of the first roller assembly 20 will be described with reference to fig. 4 and 5, and as shown in fig. 4 and 5, the first roller assembly 20 includes a second bracket 21, a second shaft end baffle 22, a second roller shaft 23, and a second roller 24, the lower end of the second shaft end baffle 22 is connected to the second bracket 21, the end of the second roller shaft 23 is fixedly connected to the second shaft end baffle 22, the second roller shaft 23 passes through the axle center of the second roller 24, and the second roller 24 can rotate around the second roller shaft 23. The second bracket 21, the second axial end baffle 22 and the second roller shaft 23 can realize stable support of the second roller 24, the second roller 24 can rotate relative to the second roller shaft 23, the second roller 24 can be abutted with the lower surface of the top rail 2000, the second roller 24 can travel along the lower surface of the top rail 2000, and smooth travel of the stacker 1000 along the front-back direction can be ensured.

As shown in fig. 4 and 5, the second shaft end baffle 22 is two, the second roller shaft 23 includes a second roller shaft body 231 and a second shaft end baffle 232, the second roller shaft body 231 includes a second limiting member 2311 and a second shaft portion 2312, two ends of the second shaft portion 2312 are fixedly connected with the two second shaft end baffles 22 respectively, the second limiting member 2311 is abutted to the outer side of one second shaft end baffle 22, the second shaft portion 2312 passes through the axle center of the second roller 24, the second shaft end baffle 232 and one end of the second shaft portion 2312 far away from the second limiting member 2311 are fixedly connected, and are abutted to the outer side of the other second shaft end baffle 22, and through the arrangement of the structure, the limitation of the relative position of the second roller 24 relative to the second shaft end baffle 22 along the axial direction of the second roller 24 can be realized.

The structure of the second roller assembly 40 will be described with reference to fig. 4 and 6, and as shown in fig. 4 and 6, the second roller assembly 40 includes a connection plate 41, a roller mechanism 42, and a second elastic assembly 43, the connection plate 41 is connected to an output end of the driving mechanism 60, the roller mechanism 42 is connected to the connection plate 41 through the second elastic assembly 43, and the roller mechanism 42 can float in an up-down direction with respect to the connection plate 41. The second roller assembly 40 can be propped against the lower surface of the top rail 2000 due to the pre-compression (i.e. upward acting force) of the second elastic assembly 43, when the upright post 200 swings to one side greatly, the second roller assembly 40 on this side can prevent the stacker 1000 from swinging to this side greatly, thereby preventing the stacker 1000 from swinging to a large extent.

As a preferred solution, the second elastic component 43 includes a second guide member 431 and a second spring 432, the second guide member 431 includes a second guide portion 4311 and a second limiting portion 4312, the lower end of the second guide portion 4311 is fixedly connected with the connecting plate 41, the upper end of the second guide portion 4311 is slidably disposed through the roller mechanism 42 and can extend out of the roller mechanism 42, the upper end of the second guide portion 4311 is fixed with the second limiting portion 4312, the second spring 432 is sleeved on the outer periphery of the second guide portion 4311, and the second spring 432 is compressed between the connecting plate 41 and the roller mechanism 42. By providing the second guide 431, it is possible to ensure that the second spring 432 is elastically deformed in the up-down direction, so that the elastic force (pre-compression force) released by the second spring 432 due to the deformation acts only in the vertical direction, thereby preventing the stacker 1000 from vibrating or swaying. The lower end of the second guiding portion 4311 may be fixedly connected with the connecting plate 41 through threads, so that the second guiding portion 4311 and the connecting plate 41 are convenient to be quickly assembled and disassembled, and the second guiding portion 4311 is convenient to be quickly assembled and disassembled.

Referring to fig. 4 and 6, the structure of the roller mechanism 42 is described, as shown in fig. 4 and 6, the roller mechanism 42 includes a first bracket 421, a first shaft end baffle 422, a first roller shaft 423, and a first roller 424, the lower end of the first shaft end baffle 422 is connected to the first bracket 421, the end of the first roller shaft 423 is fixedly connected to the first shaft end baffle 422, the first roller shaft 423 passes through the axle center of the first roller 424, and the first roller 424 can rotate around the first roller shaft 423. The first support 421, the first shaft end baffle 422 and the first roller shaft 423 can stably support the first roller 424, the first roller 424 can rotate relative to the first roller shaft 423, the first roller 424 can be abutted with the lower surface of the top rail 2000, the first roller 424 can travel along the lower surface of the top rail 2000, and smooth travel of the stacker 1000 along the front-back direction can be ensured.

As shown in fig. 4 and 6, the first shaft end baffles 422 are two, the first roller shaft 423 includes a first roller shaft body 4231 and a first shaft end baffle 4232, the first roller shaft body 4231 includes a first limiting member 42311 and a first shaft portion 42312, two ends of the first shaft portion 42312 are respectively fixedly connected with the two first shaft end baffles 422, the first limiting member 42311 is abutted to the outer side of one first shaft end baffle 422, the first shaft portion 42312 passes through the shaft center of the first roller 424, one end, away from the first limiting member 42311, of the first shaft end baffle 4232 and the first shaft portion 42312 is fixedly connected and is abutted to the outer side of the other first shaft end baffle 422, and through the arrangement of the structure, the limitation of the relative position of the first roller 424 relative to the first shaft end baffle 422 along the axial direction of the first roller 424 can be realized.

Referring to fig. 4, the structure of the position detecting mechanism 50 is described, as shown in fig. 4, the position detecting mechanism 50 includes a travel switch 51 and a switch trigger 52, one of the travel switch 51 and the switch trigger 52 is disposed on the mounting seat 10, the other of the travel switch 51 and the switch trigger 52 is disposed on the first roller assembly 20, the switch trigger 52 can trigger the travel switch 51 to be closed, and the travel switch 51 and the switch trigger 52 are matched, so that the position detecting mechanism 50 can accurately detect the position of the first roller assembly 20. Of course, in other embodiments, the position detecting mechanism 50 may alternatively be an infrared position detecting device or the like.

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. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. 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

1. An anti-sway device, comprising:

the mounting seat (10) is used for being connected with the upper part of the upright post (200) of the stacker;

the first roller assembly (20) and the first elastic assembly (30), the first roller assembly (20) is connected with the mounting seat (10) through the first elastic assembly (30), and the first roller assembly (20) can float along the up-down direction relative to the mounting seat (10);

the second roller assembly (40) is arranged on the mounting seat (10) and is positioned on one side, far away from the upright post (200), of the first roller assembly (20), and the upper end of the second roller assembly (40) is lower than the upper end of the first roller assembly (20);

the device comprises a position detection mechanism (50) and a driving mechanism (60), wherein the driving mechanism (60) is configured to drive the second roller assembly (40) to move upwards to be abutted with a top rail (3000) when the position detection mechanism (50) detects that the first roller assembly (20) moves downwards beyond a preset distance.

2. The anti-sway device of claim 1, characterized in that the first elastic component (30) comprises:

the first guide piece (31) comprises a first guide part (311) and a first limiting part (312), wherein the lower end of the first guide part (311) is fixedly connected with the mounting seat (10), the upper end of the first guide part (311) is slidably arranged on the first roller assembly (20) in a penetrating manner and can extend out of the first roller assembly (20), and the upper end of the first guide part (311) is fixed with the first limiting part (312); and

the first spring (32) is sleeved on the periphery of the first guide part (311), and the first spring (32) is compressed between the mounting seat (10) and the first roller assembly (20).

3. The anti-sway device of claim 1, characterized in that the second roller assembly (40) comprises:

the connecting plate (41) is connected with the output end of the driving mechanism (60);

the roller mechanism (42) and the second elastic component (43), the roller mechanism (42) is connected with the connecting plate (41) through the second elastic component (43), and the roller mechanism (42) can float along the up-down direction relative to the connecting plate (41).

4. A sway prevention arrangement according to claim 3, characterized in that the second elastic component (43) comprises:

the second guide piece (431) comprises a second guide part (4311) and a second limiting part (4312), the lower end of the second guide part (4311) is fixedly connected with the connecting plate (41), the upper end of the second guide part (4311) is slidably arranged on the roller mechanism (42) in a penetrating manner and can extend out of the roller mechanism (42), and the upper end of the second guide part (4311) is fixed with the second limiting part (4312); and

and a second spring (432) sleeved on the outer periphery of the second guide part (4311), wherein the second spring (432) is compressed between the connecting plate (41) and the roller mechanism (42).

5. The anti-sway device of claim 4, characterized in that the roller mechanism (42) comprises:

a first bracket (421);

the lower end of the first shaft end baffle (422) is connected with the first bracket (421);

the end part of the first roller shaft (423) is fixedly connected with the first shaft end baffle (422); and

the first roller (424), the axle (423) of first roller (424) pass, just first roller (424) can rotate around first roller axle (423).

6. The anti-sway device of claim 5 characterized in that the first shaft end baffles (422) are provided in two and the first roller shaft (423) comprises:

the first roller shaft body (4231) comprises a first limiting piece (42311) and a first shaft portion (42312), wherein two ends of the first shaft portion (42312) are fixedly connected with two first shaft end baffles (422) respectively, the first limiting piece (42311) is abutted to the outer side of one first shaft end baffle (422), and the first shaft portion (42312) penetrates through the axle center of the first roller (424); and

the first shaft end baffle (4232) is fixedly connected with one end of the first shaft part (42312) far away from the first limiting part (42311) and is abutted against the outer side of the other first shaft end baffle (422).

7. The anti-sway device of any one of claims 1-6, characterized in that the position detection mechanism (50) comprises a travel switch (51) and a switch trigger (52), one of the travel switch (51) and the switch trigger (52) being provided on the mount (10) and the other of the travel switch (51) being provided on the first roller assembly (20), the switch trigger (52) being capable of triggering the travel switch (51) to close.

8. A stacker comprising a column (200), characterized in that it further comprises an anti-sway device according to any one of claims 1 to 7, said anti-sway device being provided on the upper portion of said column (200).

9. The stacker according to claim 8 wherein said anti-sway device is provided on both sides of said upright (200) along the direction of movement of said stacker.

10. An access system comprising a stereoscopic garage, wherein the access system further comprises a stacker as claimed in claim 8 or 9, the stacker being capable of shuttling in the stereoscopic garage and effecting the retrieval of goods.