CN216581641U

CN216581641U - Storage box conveying device, container and combined container

Info

Publication number: CN216581641U
Application number: CN202122247119.7U
Authority: CN
Inventors: 杨建成; 王飞; 朱烨
Original assignee: Beijing Yuanjing Technology Co ltd
Current assignee: Beijing Yuanjing Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-05-24
Anticipated expiration: 2031-09-16

Abstract

The utility model provides a storage box conveying device, a container and a combined container. This storage tank conveyer includes: a bracket; the guide rail is arranged on the bracket and extends along a first conveying direction of the storage box conveying device; the movable storage rack is arranged on the guide rail, can move along the guide rail, and is used for bearing the storage box and conveying the storage box along the first conveying direction; wherein, remove supporter including the orientation the detection piece that the bracket extends, follow on the bracket set gradually two at least position detecting element in first direction of delivery, the detection piece is in the process position detecting element time can by position detecting element detects.

Description

Storage box conveying device, container and combined container

Technical Field

The utility model relates to the technical field of machinery, in particular to a storage box conveying device, a container and a combined container.

Background

The storage cabinet is used for storing various articles. Generally, the storage cabinet needs to store articles in a plurality of positions of the storage cabinet, and when the corresponding articles need to be taken, the articles need to be found in the corresponding positions of the storage cabinet. One convenient way is to use a dispatching mechanism to pick up the articles inside the cabinet. However, since the articles have different shapes and do not have standard shapes, the scheduling mechanism is inconvenient to take the articles. Meanwhile, the dispatching mechanism directly contacts the articles and needs to apply force to the articles to take the articles, so that the articles are easily damaged.

To this end, a freight container is provided which stores articles using storage boxes and then dispatches the storage boxes, which can solve the above-mentioned problems. However, when the storage boxes are dispatched, the placement positions of the storage boxes may not be accurate due to poor speed control of a mechanism for transferring the storage boxes.

SUMMERY OF THE UTILITY MODEL

The utility model provides a storage box conveying device, a container and a combined container.

In a first aspect of the present invention, there is provided a storage box transfer device comprising:

a bracket;

the guide rail is arranged on the bracket and extends along the first conveying direction of the storage box conveying device;

the movable storage rack is arranged on the guide rail, can move along the guide rail, and is used for bearing the storage box and conveying the storage box along the first conveying direction;

wherein, remove supporter including the orientation the detection piece that the bracket extends, follow on the bracket set gradually two at least position detecting element in first direction of delivery, the detection piece is in the process position detecting element time can by position detecting element detects.

In a second aspect of the utility model, there is provided a container comprising:

a cabinet body;

a plurality of storage boxes for placing articles;

a plurality of placing positions for placing the storage box are arranged along the inner surface of the first side wall of the cabinet body;

the conveying mechanism is arranged on one side of the placing positions and used for moving the storage box along a second conveying direction, wherein the second conveying direction is consistent with the arrangement direction of the placing positions; and

the storage box transfer device according to the first aspect is provided on the transfer mechanism, and is configured to carry the storage box and move in the second transfer direction, and move the storage box into or out of the placement position in the first transfer direction when aligned with the placement position.

In a third aspect of the utility model, there is provided a modular container comprising at least two containers as described in the second aspect; at least two containers are arranged in parallel and fixedly connected with each other through a connecting mechanism.

According to the storage box conveying device, the container and the combined container, the position detection units are arranged at different positions of the storage box conveying device, so that the conveying position of the storage box can be detected when the storage box is dispatched, a basis for controlling the conveying speed of the storage box based on the position detection is provided, and the accuracy of the storage box placing position is further ensured.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1A shows a schematic diagram of an exemplary container provided by an embodiment of the present invention.

FIG. 1B shows a schematic diagram of the internal structure of an exemplary container provided by embodiments of the utility model.

FIG. 1C shows a schematic view of a storage compartment according to an embodiment of the present invention.

FIG. 1D shows an enlarged schematic view of the location of the placement locations of the shelves of FIG. 1B.

FIG. 2A illustrates a schematic view of a storage bin transfer device provided by embodiments of the present disclosure in one state.

Fig. 2B illustrates a schematic view of a storage bin transfer device provided by an embodiment of the present disclosure in another state.

Fig. 2C shows a schematic view of a storage bin transfer device provided by an embodiment of the present disclosure in yet another state.

Fig. 2D is an enlarged schematic view showing the position of the position detection unit in fig. 2A.

FIG. 2E shows an enlarged schematic view of the position of the second conveyance mechanism of the rack of FIG. 1B.

FIG. 3 shows a schematic view of an exemplary packing cabinet provided by an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.

It should be noted that technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings as understood by those having ordinary skill in the art to which the present invention belongs, unless otherwise defined. The use of "first," "second," and similar language in the embodiments of the present invention does not denote any order, quantity, or importance, but rather the terms "first," "second," and similar language are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

FIG. 1A shows a schematic of an exemplary container 100 provided by an embodiment of the present invention. FIG. 1B shows a schematic view of the internal structure of an exemplary container 100 provided by an embodiment of the utility model.

As shown in FIGS. 1A and 1B, a freight container 100 may include a cabinet 102 and a plurality of storage compartments (e.g., storage compartments 104 a-104 c) disposed within the cabinet 102 for holding items. The storage bins 104 a-104 c may be used to store various items and may be moved and dispatched by a corresponding mechanism within the cabinet 102. It is understood that the number of storage tanks disposed in the freight container 100 is not limited to 3, but may be more or less, depending on the size of the freight container 100 and the size of the storage tanks, and the specific number is set as desired and is not limited herein.

The cabinet 102 may include oppositely disposed first and

second sidewalls

1022, 1024. A plurality of placement locations (e.g., placement locations 106 a-106 c) for placing storage bins may be provided on the inner surface of the first side wall 1022.

In some embodiments, as shown in FIG. 1B, the placement locations 106 a-106 c may be flanked by mounts 1062 a-1062 c. The fixing brackets 1062a to 1062c may be provided with slots (not shown) for fixing the storage boxes 104a to 104 c. FIG. 1C shows a schematic view of a storage compartment 104a according to an embodiment of the utility model. For example, as shown in fig. 1C, hooks 1042a may be disposed on both sides of the storage box 104 a. FIG. 1D shows an enlarged schematic view of the location of the placement site 106a of the pallet 100 of FIG. 1B. For example, as shown in FIG. 1D, the storage compartment 104a can be secured in the placement location 106a by snap-fitting the hooks 1042a into the slots 1064a of the fixture. Through joint complex mode, be convenient for transport mechanism to the placing and taking of storage tank. In some embodiments, taking the example of FIG. 1C as an example, the cross-sectional shape of the hook 1042a can be L-shaped, and as shown in FIG. 1D, the cross-sectional shape of the slot 1064a can be wedge-shaped. Thus, the slot 1064a has a structure with a wide top and a narrow bottom, so that the hook 1042a can be easily engaged therewith, and when the hook 1042a continues to move downward, the hook can be tightly engaged with the narrow portion of the slot 1064a to be fixed.

In some embodiments, taking fig. 1D as an example, the upper surface of the fixing frame 1062a may be provided with a first fixing pin 1066a, the hook 1042a may be provided with a first hole 1044a, and when the storage box 104a is fixed in the placing position 106a, the first fixing pin 1066a is fastened and fixed with the first hole 1044a, so as to further ensure the position of the storage box 104a in the placing position 106a is fixed, and improve the stability. The number of fixation pins and openings shown in the figures is two, it being understood that the number of fixation pins and openings may also be increased, depending on the actual requirements, e.g. for stability reasons.

In some embodiments, as shown in fig. 1B, the placement locations 106a to 106c may further be provided with brackets 1068a to 1068c, respectively, and when the storage boxes 104a to 104c are fixed in the placement locations 106a to 106c, the brackets 1068a to 1068c are used for supporting the storage boxes 104a to 104c, so as to prevent the storage boxes 104a to 104c from falling from the placement locations 106a to 106 c.

In some embodiments, as shown in fig. 1B, the arrangement of the plurality of placement locations 106 a-106 c is vertical, and the tray (e.g., 1068a) of an upper placement location (e.g., placement location 106a) may also serve as a top stop for an adjacent lower placement location (e.g., placement location 106B). The top flap may provide a raised height of the storage bin in the storage position when the storage bin is placed. The design also saves the inner space of the cabinet 102, so that the structure is compact.

To accomplish the movement and scheduling of the bins 104 a-104 c within the freight container 100, the freight container 100 may also include a conveying mechanism 108 and a bin conveying apparatus 110, as shown in FIG. 1B. The transfer mechanism 108 may be disposed on one side of the placement locations 106 a-106 c and may be configured to move the bins 104 a-104 c in the second transfer direction 202. As shown in fig. 1B, the second transfer direction 202 may coincide with the arrangement direction of the plurality of placement bits 106a to 106 c. The bin conveyor 110, which may be disposed on the conveyor 108, may be configured to carry the bins 104 a-104 c and may be movable in the second conveying direction 202, and to move the bins 104 a-104 c into the placement positions 106 a-106 c or to remove the bins 104 a-104 c from the placement positions 106 a-106 c in the first conveying direction 204 when aligned with the placement positions 106 a-106 c. In this way, the bins 104 a-104 c are moved and dispatched between the respective receiving stations 106 a-106 c of the container 100 by moving the bins 104 a-104 c in the second conveying direction 202 and the first conveying direction 204 using the conveying mechanism 108 and the bin conveying apparatus 110.

In some embodiments, as shown in FIG. 1B, the transport mechanism 108 may further include a guide rail 1082 and a traction mechanism 1084. The guide rails 1082 may be used to provide a guide for the movement of the storage bin transfer device 110 such that the storage bin transfer device 110 is only movable in the second transfer direction 202 in the vertical direction. The traction mechanism 1084 may be used to provide power to move the storage bin conveyor 110 in the second conveying direction 202 such that the storage bin conveyor 110 can move in the second conveying direction 202 under the power. As shown in FIG. 1B, the towing mechanism 1084 may include a tow rope/strap to which the storage bin conveyor 110 is fixedly coupled to move the storage bin conveyor 110 in the second conveying direction 202 as the tow rope/strap moves in the second conveying direction 202.

Fig. 2A to 2C respectively show schematic diagrams of the storage box transfer device 110 provided in the embodiment of the present disclosure in three states.

As shown in fig. 1B, 2A-2C, the storage bin transfer device 110 may further include a bracket 1102, a guide 1104, and a mobile storage shelf 1106. The carriage 1102 may be disposed on the transport mechanism 108 (e.g., disposed on the guide rail 1082 of the transport mechanism 108) and may be movable along the second transport direction 202 to move the bin conveyor 110 as a whole along the second transport direction 202. A guide 1104 is disposed on the bracket 1102 and extends along the first conveying direction 204 of the locker conveyor 110 to provide guidance along the first conveying direction 204. A mobile storage shelf 1106 is disposed on the guide 1104 and is movable along the guide 1104 for carrying a storage bin (e.g., storage bin 104a) and transporting the storage bin in the first transport direction 204. For example, a mobile storage shelf 1106 may be used to move bins 104 a-104 c into and out of placement positions 106 a-106 c in the first conveyance direction 204 when bin conveyors 110 are aligned with placement positions 106 a-106 c.

Further, in order to detect the position of the mobile shelf 1106 during the moving process and adjust the moving speed thereof based on the position, the mobile shelf 1106 may include a detecting element 11062 extending toward the tray 1102, at least two position detecting units (e.g.,

position detecting units

1108a, 1108b, 1108c) are sequentially disposed on the tray 1102 along the first conveying direction 204, the detecting element 11062 may be detected by the position detecting units when passing through the position detecting units, and the position detecting units may generate corresponding detecting signals and transmit the corresponding detecting signals to the control unit (not shown in the figure) after detecting the detecting element 11062.

In some embodiments, as shown in fig. 2A to 2C, three position detecting units, including a first position detecting unit 1108a, a second position detecting unit 1108b, and a third position detecting unit 1108C, may be disposed on the bracket 1102.

The first position detecting unit 1108a may be disposed at a first end of the carriage 1102 (the first end may be an end of the carriage 1102 facing away from the placement position), the second position detecting unit 1108b may be spaced apart from the first position detecting unit 1108a by a first distance, the third position detecting unit 1108c may be spaced apart from the second position detecting unit 1108b by a second distance, and the third position detecting unit 1108c may be disposed at a second end of the carriage 1102 (the second end may be an end of the carriage 1102 facing toward the placement position). The first distance is greater than the second distance, for example, the first distance may be 3 to 10 times the second distance. As shown in fig. 2A and 2C, when the detecting member 11062 is located at the first end of the carriage 1102 (shown in fig. 2A), the detecting member 11062 corresponds to the first position detecting unit 1108a in position; when the detecting member 11062 is located at the second end of the carriage 1102 (shown in fig. 2C), the detecting member 11062 corresponds to the third position detecting unit 1108C.

In some embodiments, the storage bin transfer device 110 may further include a control unit (not shown) and a drive mechanism (not shown). The driving mechanism may be connected with a mobile shelf 1106 for providing a driving force for the mobile shelf 1106 along the first conveying direction 204.

The control unit may be electrically coupled to the three position detection units and may perform the steps of: when the detecting member 11062 is located at the first end of the carriage 1102 (shown in fig. 2A), the driving mechanism is controlled to drive the moving shelf 1106 to move along the first conveying direction 204 at the first speed v1 by receiving the position detection signal of the first position detecting unit 1108 a; when the detecting member 11062 passes through the second position detecting unit 1108B (shown in fig. 2B), the driving mechanism is controlled to drive the movable shelf 1106 to move along the first conveying direction 204 at the second speed v2 by receiving the position detecting signal of the second position detecting unit 1108B; and when the detecting member 11062 is located at the second end of the bracket 1102 (shown in fig. 2C), receiving the position detecting signal of the third position detecting unit 1108C, controlling the driving mechanism to stop driving the movable shelf 1106; wherein the first speed v1 is greater than the second speed v 2.

In this way, by driving the movable shelf 1106 to move towards the second end of the bracket 1102 at a higher speed when the locker is just transferred, and controlling the movable shelf 1106 to decelerate when the detecting member 11062 passes the second position detecting unit 1108b, continuing to move towards the second end of the bracket 1102 at a lower speed, and triggering a stop command when the detecting member 11062 passes the third position detecting unit 1108c at the second end, it is possible to decelerate in advance when the end of the bracket 1102 is about to be reached, so as to improve the accuracy of the locker entering the target position.

In some embodiments, as shown in fig. 2A-2C, mobile shelving 1106 may further include a moving portion 11064 and a supporting portion 11066. The moving portion 11064 is slidably connected to the guide rail 1104, the supporting portion 11066 is disposed on the moving portion 11064 and is used for carrying a storage box (e.g., the storage box 104a), and the detecting member may be fixed to the moving portion 11064. The moving part 11064 may be disposed at a first end of the support part 11066, the support part 11066 having a length corresponding to the depth of the storage compartment (e.g., the storage compartment 104a), and the moving part 11064 having a length less than 1/2 of the length of the support part 11066. Since the movable rack 1106 is slidably connected to the guide 1104 via the moving part 11064, in order to facilitate the movement of the entire movable rack 1106, the length of the moving part 11064 is set short, so that the part of the movable rack 1106 connected to the guide is short (friction is small accordingly), which is advantageous for the movement of the movable rack 1106.

Fig. 2D is an enlarged schematic diagram of the position detection unit 1108a in fig. 2A.

As shown in fig. 2D, in some embodiments, the position detection unit (e.g., position detection unit 1108a) may further include a mount 11082a and a detector (not shown). The fixing member 11082a is fixed to the bracket 1102, and has a through groove 11084a at an end facing the detecting member 11062. When the movable rack 1106 moves along the guide rail 1104, the detecting member 11062 can move in the through groove 11084a, and the detector is arranged in the through groove 11084a and can detect the detecting member 11062 moving in the through groove 11084 a. Like this, set up logical groove among the position detecting element and supply detecting piece 11062 to remove wherein, can guarantee detection signal's accuracy on the one hand, on the other hand can provide certain guide effect for detecting piece 11062, and when the detection signal in the position detecting element appears unusually, the maintenance personal can also in time discover the problem.

In some embodiments, the detector may further include an infrared emitter (not shown) and an infrared receiver (not shown), the through slot 11084a includes a first side wall 11086a and a second side wall 11088a, the infrared emitter may be disposed in the first side wall 11086a, the infrared receiver may be disposed in the second side wall 11088a, positions of the infrared emitter and the infrared receiver correspond, and the detecting member 11062 may block an infrared signal emitted from the infrared emitter from being received by the infrared receiver when moving in the through slot 11084a, so that the position detecting unit 1108a generates a position detecting signal indicating that the position of the position detecting unit 1108a passes through the detecting member 11062. In some embodiments, as shown in FIG. 2D, the first and

second sidewalls

11086a and 11088a may also be provided with apertures for the exit and entry of infrared light.

The present embodiment employs an infrared sensor to perform the position detection function, it being understood that there are other sensors in the art that can perform this function, and thus the embodiments herein are merely exemplary.

FIG. 2E shows an enlarged schematic view of the location of the bin conveyor 110 of the rack 100 of FIG. 1B. As shown in fig. 2E, in some embodiments, the upper surface of the support portion 11066 may be provided with a second fixing pin 11068. For example, as shown in fig. 1C, fixing protrusions 1046a may be disposed on two sides of the storage box 104a, and a second opening (not shown) may be disposed on a lower surface of the fixing protrusion 1046 a. The supporting portion 11066 can be fixed to the storage box 104a by engaging the second fixing pin 1106 with the second opening. Thus, after the storage bin 104a is fixed to the supporting portion 11066, the movable object carrier 1106 moves along the first conveying direction 204 to drive the storage bin 104a to move. The number of fixation pins and openings shown in the figures is two, it being understood that the number of fixation pins and openings may also be increased, depending on the actual requirements, e.g. for stability reasons.

In some embodiments, as shown in FIGS. 1A and 1B, the container 100 can also include an access opening 112. The access opening 112 may be disposed on the second sidewall 1024 of the cabinet 102 for providing access for a person or machine to enter and exit.

In some embodiments, as shown in FIG. 1B, the container 100 can also include a pushing mechanism 114. The push mechanism 114 may be disposed on the first side wall 1022 at a location opposite the access opening 112 and may be used to push the items in the storage bins 104 a-104 c out of the access opening 112 when the storage bins 104 a-104 c are aligned with the access opening 112.

In some embodiments, as shown in FIG. 1B, the container 100 can also include an access panel 116 and a push-pull mechanism 118. The fetching baffle 116 may be attached to the second sidewall 1024 for blocking or exposing the fetching opening. The push-pull mechanism 118 may be disposed on the second side wall 1024 and connected to the access barrier 116, and may be used to push or pull the access barrier 116 along the second side wall 1024 to block or uncover the access opening 112. When the push-pull mechanism 118 pushes the fetching baffle 116 out along the second side wall 1024, the fetching opening 112 is blocked by the fetching baffle 116, and when the push-pull mechanism 118 pulls the fetching baffle 116 up along the second side wall 1024, the fetching opening 112 is exposed, and a person or a machine can extend into or out of the fetching opening 112.

In some embodiments, as shown in fig. 1C, the side of the storage box 104a facing the second side wall 1024 has a flap 1048a, and the pushing mechanism 114 can push the flap 1050a to extend into the storage box 104a to push the article in the storage box 104a out of the access opening 112. In some embodiments, the movable flap 1048a is a one-way flap, i.e., only movable toward the interior of the storage compartment and not movable toward the exterior of the storage compartment. Thus, articles in the storage box can be prevented from falling off in the moving process.

In some embodiments, as shown in FIG. 1A, the exterior surface of the second sidewall 1024 of the container 100 can also provide a display screen 120, a two-dimensional code scanning window 122, a concealed push-to-service door lock 124, and a detachable cabinet docking frame 126. The display 120 can display information about the cargo container 100, such as the storage status of the internal storage bins 104 a-104 c. The two-dimensional code scanning window 122 may be used to scan an externally provided two-dimensional code, which may contain information for authenticating an identity or extracting an item. The concealed push service door lock 124 may be opened when pushed for servicing by a worker. The detachable cabinet docking frame 126 may be used to dock with a robot that delivers items to bring items stored in the storage bins 104 a-104 c of the container 100 into the robot.

In some embodiments, the container 100 can further comprise a control unit (not shown in the figures) for providing control instructions and drive signals to the components of the container 100. For example, the conveying mechanism 108, the storage box conveying device 110, the pushing mechanism 114, and the pushing and pulling mechanism 118 may respectively include control motors, and the control unit may provide corresponding control commands or driving signals to the control motors, so that the control motors drive the components to perform corresponding operations.

The embodiment of the utility model also provides a combined container to solve the problem that the storage capacity of a single container is insufficient.

FIG. 3 shows a schematic diagram of an exemplary modular container 200 provided by an embodiment of the present invention.

As shown in FIG. 3, an assembled container 200 may comprise two

containers

100a and 100 b. The

containers

100a and 100b are arranged side by side and can be fixedly connected to each other by means of connection means, for example screws. The

containers

100a and 100b can be any embodiment or arrangement, combination of embodiments of the containers 100 described previously.

In some embodiments, as shown in FIG. 3, the

containers

100a and 100b may include

extraction openings

112a and 112b, respectively, and the

extraction openings

112a and 112b are disposed at different positions, so that the

extraction openings

112a and 112b may be respectively docked with robots (not shown) provided with extraction components having different heights.

It will be appreciated that the combination container 200 can be further increased to store more items according to different needs. When more containers are arranged, the fetching openings of the newly-added containers may be different from the fetching

openings

112a and 112b, or may be the same as one of the fetching openings, which may be specifically designed, and thus are not described herein again.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the utility model, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the utility model as described above, which are not provided in detail for the sake of brevity.

In addition, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the embodiments of the utility model. Furthermore, devices may be shown in block diagram form in order to avoid obscuring embodiments of the present invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the embodiments of the present invention are to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the utility model, it should be apparent to one skilled in the art that embodiments of the utility model can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.

While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit or scope of the embodiments of the present invention are intended to be included within the scope of the present invention.

Claims

1. A storage bin transfer device, comprising:

a bracket;

2. The storage bin transfer device of claim 1 wherein three of said position sensing units are provided on said carriage, including a first position sensing unit, a second position sensing unit and a third position sensing unit;

the first position detection unit is arranged at the first end of the bracket, the second position detection unit and the first position detection unit are separated by a first distance, the third position detection unit and the second position detection unit are separated by a second distance, and the third position detection unit is arranged at the second end of the bracket;

wherein the first distance is greater than the second distance.

3. The storage box transfer device according to claim 1 or 2, wherein the position detecting unit includes a fixing member fixed to the bracket, the fixing member having a through groove at an end thereof facing the sensing member, the sensing member being movable in the through groove when the movable storage shelf moves along the guide rail, and a detector disposed in the through groove and sensing the sensing member moving in the through groove.

4. The bin conveyor of claim 3, wherein said detector includes an infrared emitter and an infrared receiver, said channel includes a first sidewall and a second sidewall, said infrared emitter is disposed in said first sidewall, said infrared receiver is disposed in said second sidewall, said infrared emitter and said infrared receiver are positioned to correspond, and said detector is capable of blocking an infrared signal from said infrared emitter from being received by said infrared receiver when said detector moves in said channel.

5. The storage bin transfer device of claim 2, further comprising a control unit and a drive mechanism;

the driving mechanism is connected with the movable commodity shelf and used for providing driving force for the movable commodity shelf along the first conveying direction;

the control unit is electrically coupled with the position detection unit and is configured to:

receiving a position detection signal of the first position detection unit, and controlling the driving mechanism to drive the movable commodity shelf to move along the first conveying direction at a first speed;

receiving a position detection signal of the second position detection unit, and controlling the driving mechanism to drive the movable commodity shelf to move along the first conveying direction at a second speed; and

receiving a position detection signal of the third position detection unit, and controlling the driving mechanism to stop driving the movable commodity shelf;

wherein the first speed is greater than the second speed.

6. The storage box conveying apparatus according to claim 1, wherein the mobile storage rack comprises a moving part and a supporting part, the moving part is slidably connected with the guide rail, the supporting part is arranged on the moving part and is used for carrying the storage box, and the detecting member is fixed on the moving part; the moving part is arranged at the first end of the supporting part, the length of the supporting part is consistent with the depth of the storage box, and the length of the moving part is smaller than 1/2 of the length of the supporting part.

7. The storage box transfer device according to claim 6, wherein the support part is provided at an upper surface thereof with fixing pins, fixing protrusions are provided at both sides of the storage box, openings are provided at lower surfaces of the fixing protrusions, and the support part is fastened to the openings by the fixing pins to be fixed to the storage box.

8. A freight container, comprising:

a cabinet body;

a plurality of storage boxes for placing articles;

a bin transporter as claimed in any one of claims 1 to 7, arranged on said transport mechanism for carrying said bins and moving them in said second transport direction and, when aligned with said placement positions, moving said bins in said first transport direction into or out of said placement positions.

9. The freight container of claim 8, where the freight container further comprises:

the object taking opening is arranged on a second side wall of the cabinet body, and the second side wall is opposite to the first side wall;

the pushing mechanism is arranged on the position, opposite to the article taking opening, of the first side wall and used for pushing the articles in the storage box out of the article taking opening when the storage box is aligned with the article taking opening.

10. An assembled container comprising at least two containers as claimed in claim 8 or 9; at least two containers are arranged in parallel and fixedly connected with each other through a connecting mechanism.

11. The modular tank of claim 10, wherein at least two of the tanks each comprise an access opening, the access openings of the two tanks being arranged at different positions.