Item storage and retrieval device

Abstract

The present disclosure provides an article storage and retrieval device, comprising a base frame, a first opening and closing door, a second opening and closing door, and an inter-door locking structure. The first opening and closing door and the second opening and closing door are rotatably arranged on the base frame, and when the first opening and closing door and the second opening and closing door are both closed, the first opening and closing door is located between the second opening and closing door and the base frame. The inter-door locking structure has an inter-door locking state for locking the relative position of the second opening and closing door and a door unlocking state for unlocking the relative position of the second opening and closing door and the first opening and closing door. When the first opening and closing door and the second opening and closing door are closed at the same time, the inter-door locking structure is in the inter-door locking state; when the first opening and closing door and the second opening and closing door are opened at the same time, the inter-door locking structure switches from the inter-door locking state to the inter-door unlocking state. The article storage and retrieval device disclosed in the present disclosure only requires one door locking structure to achieve locking of the article storage and retrieval device in the article storage state and the folded state.

Description

Technical Field

[0001] The present disclosure relates to the field of logistics technology, and in particular to an article storage and retrieval device. Background Art

[0002] Storage and retrieval devices, especially those placed in open areas, such as express delivery boxes, generally require locking to prevent unauthorized access and ensure the safety of stored items. If the storage and retrieval device utilizes a unique structural design, a rational and user-friendly locking mechanism is required.

[0003] In the prior art, for item storage and retrieval devices with multiple openings and closing doors, the typical locking structure design is to lock each opening and closing door to the base frame separately, and the locking of each opening and closing door is independent of each other. The locking structure design of such item storage and retrieval devices is relatively complex, with high production costs and cumbersome operation during use. Summary of the Invention

[0004] The purpose of the present disclosure is to provide an article storage and retrieval device that can simplify the operation process and reduce the control difficulty.

[0005] A first aspect of the present disclosure provides an article storage and retrieval device, comprising:

[0006] base frame;

[0007] A first opening and closing door is rotatably provided on the base frame to open or close the first opening and closing door;

[0008] a second opening and closing door rotatably disposed on the base frame to open or close the second opening and closing door, wherein the first opening and closing door is located between the second opening and closing door and the base frame when both the first opening and closing door and the second opening and closing door are closed; and

[0009] An inter-door locking structure, wherein the inter-door locking structure has an inter-door locking state for locking the relative position of the second opening and closing door and the first opening and closing door, and an inter-door unlocking state for releasing the lock of the relative position of the second opening and closing door and the first opening and closing door, and the inter-door locking structure is in the inter-door locking state when the first opening and closing door and the second opening and closing door are closed at the same time, and the inter-door locking structure switches from the inter-door locking state to the inter-door unlocking state when the first opening and closing door and the second opening and closing door are opened at the same time.

[0010] In some embodiments, the locking structure switches from the inter-door unlocking state to the inter-door locking state during the process of the first opening and closing door and the second opening and closing door being closed successively or simultaneously.

[0011] In some embodiments, the door-to-door locking structure includes:

[0012] a lock pin structure, provided on one of the first opening and closing door and the second opening and closing door, comprising a pin body; and

[0013] A lock hook is provided on the other of the first opening and closing door and the second opening and closing door, and includes a pin groove. In a locked state between the doors, the pin body is located in the pin groove, and in an unlocked state between the doors, the pin body is disengaged from the pin groove.

[0014] In some embodiments, the locking hook is configured to rotate relative to at least a portion of the door body of the opening and closing door when the opening and closing door rotates relative to the base frame.

[0015] In some embodiments, the locking hook is arranged on the second opening and closing door, the second opening and closing door and the base frame form a parallel four-bar linkage structure, and the locking hook is arranged on the parallel four-bar linkage structure.

[0016] In some embodiments, the second opening and closing door includes a reinforcing rod, both ends of which are hinged to two opposite connecting rod structures of the parallel four-bar linkage structure, and the locking hook is provided on the reinforcing rod.

[0017] In some embodiments, the second opening and closing door comprises:

[0018] a first door body, wherein a first end of the first door body is hinged to the base frame;

[0019] a second door body, wherein a first end of the second door body is hinged to a second end of the first door body;

[0020] A connecting rod, the first end of the connecting rod is hinged to the base frame, the second end of the connecting rod is hinged to the second end of the second door body, the base frame, the first door body, the second door body and the connecting rod form the parallel four-bar structure, and the two ends of the reinforcing rod are respectively hinged to the first door body and the connecting rod.

[0021] In some embodiments, the locking pin structure includes:

[0022] a first elastic member, wherein the elastic force of the first elastic member acts on the pin body, so that the pin body is retractably arranged on the opening and closing door where it is located under the action of an external force;

[0023] The limiting member is used to limit the extension and contraction range of the pin body relative to the opening and closing door where it is located.

[0024] In some embodiments, the end of the pin body that cooperates with the lock hook includes a pushing surface on the side close to the lock hook, and the pushing surface gradually moves away from the lock hook along the axial direction of the pin body from a position close to the middle to the end so that the lock hook can apply force from the side of the pin body to push the pin body to retract inward along its own axial direction.

[0025] In some embodiments, the lock pin structure includes a mounting base, and the lock pin structure is mounted on the opening and closing door through the mounting base, and the mounting base includes:

[0026] an accommodating hole in which the first elastic member and the pin body are installed; and

[0027] The limiting long hole is communicated with the accommodating hole and extends along the axial direction of the pin body. The limiting member is arranged on the pin body and is slidably matched with the limiting long hole along the axial direction of the pin body.

[0028] In some embodiments, the article storage and retrieval device further includes a damping structure, which is used to slow down the rotation speed of the first opening and closing door when the first opening and closing door rotates relative to the base frame.

[0029] In some embodiments, the damping structure includes a second elastic member, and the elastic force of the second elastic member acts on the first opening and closing door to slow down the rotation speed of the first opening and closing door when the first opening and closing door rotates relative to the base frame.

[0030] In some embodiments, the first opening and closing door and the second opening and closing door are hingedly connected to the base frame via a connecting pin, and the second elastic member is mounted on the connecting pin and applies an elastic force along the axial direction of the connecting pin to the first opening and closing door.

[0031] In some embodiments, the item storage and access device also includes a door locking structure, which has a door locking state for locking the relative position of the first opening and closing door and the base frame and a door unlocking state for unlocking the relative position of the first opening and closing door and the base frame.

[0032] In some embodiments, the second opening and closing door forms a parallel four-bar linkage structure with the base frame, and the second opening and closing door includes a plurality of reinforcing rods parallel to each other and arranged on both sides of the base frame, and the two ends of each reinforcing rod are respectively hinged to the two opposite linkage structures of the parallel four-bar linkage structure on the side.

[0033] In some embodiments, the second opening and closing door comprises:

[0034] a first door body, wherein a first end of the first door body is hinged to the base frame;

[0035] a second door body, wherein a first end of the second door body is hinged to a second end of the first door body;

[0036] A connecting rod, the first end of the connecting rod is hinged to the base frame, the second end of the connecting rod is hinged to the second end of the second door body, the base frame, the first door body, the second door body and the connecting rod form the parallel four-bar structure, and the two ends of each reinforcing rod are respectively hinged to the first door body and the connecting rod on its side.

[0037] The article storage and retrieval device provided by the present invention is provided with an inter-door locking structure. When the article storage and retrieval device is closed, the first opening and closing door and the second opening and closing door are in a relatively locked state. Moreover, during the process of simultaneously opening the first opening and closing door and the second opening and closing door, the inter-door locking structure switches from the inter-door locked state to the inter-door unlocked state. There is no need to operate the inter-door locking structure to open the first opening and closing door and the second opening and closing door. Only one door locking structure, such as an electromagnetic lock, is needed to lock the article storage and retrieval device in the article storage state and the folded state. Moreover, the article storage and retrieval device can be opened by only unlocking the door locking structure. There is no need to unlock two door locking structures as in the prior art. This simplifies the operation process and reduces the control difficulty.

[0038] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0040] Figure 1 Schematic diagram of the structure of an article storage and retrieval device in a folded state according to an embodiment of the present disclosure.

[0041] Figure 2 for Figure 1 The illustrated embodiment is a schematic structural diagram of the article storage and retrieval device in an article accommodating state, wherein the first opening and closing door is closed.

[0042] Figure 3 for Figure 1 The illustrated embodiment is a schematic structural diagram of the article storage and retrieval device in an article accommodating state, wherein the first opening and closing door is open and the cover is not shown.

[0043] Figure 4 for Figure 1 The illustrated embodiment is a schematic diagram of the partial structure of the article storage and retrieval device when the door locking structure is in the door locking state when the first opening and closing door is closed.

[0044] Figure 5 for Figure 1 The illustrated embodiment is a schematic diagram of the partial structure of the article storage and retrieval device when the door locking structure is in the door unlocking state when the first opening and closing door is partially opened.

[0045] Figure 6 Schematic diagram of the structure of the first opening and closing door of the article storage and retrieval device according to one embodiment of the present disclosure.

[0046] Figure 7 This is a schematic diagram of the exploded structure of the lock pin structure of the door locking structure in the article storage and retrieval device according to one embodiment of the present disclosure.

[0047] Figure 8 for Figure 7 The schematic structural diagram of the lock pin structure of the door locking structure is shown, wherein the pin body is in a fully extended state.

[0048] Figure 9 for Figure 7 The schematic structural diagram of the lock pin structure of the door locking structure is shown, wherein the pin body is in a fully retracted state.

[0049] Figure 10 for Figure 1 A schematic structural diagram of the reinforcing rod of the second opening and closing door and the locking hook of the inter-door locking structure in the article storage and retrieval device of the embodiment shown.

[0050] Figure 11 for Figure 1 The article storage and retrieval device of the embodiment shown is a schematic diagram of the partial structure of the lock hook provided on the reinforcing rod of the second opening and closing door.

[0051] Figure 12 for Figure 1 The article storage and retrieval device of the embodiment shown is a partial cross-sectional structural schematic diagram when the second opening and closing door is in the late stage of the closing process. At this time, the lock hook of the inter-door locking structure is not in contact with the pin body of the lock pin structure.

[0052] Figure 13 for Figure 1 The article storage and retrieval device of the embodiment shown is a partial cross-sectional structural schematic diagram when the second opening and closing door is in the late stage of the closing process. At this time, the lock hook of the inter-door locking structure has completely pressed the pin body of the lock pin structure into the first opening and closing door.

[0053] Figure 14 for Figure 1 The article storage and retrieval device of the embodiment shown is a partial cross-sectional structural schematic diagram when the second opening and closing door is in a closed state. At this time, the pin groove on the lock hook of the inter-door locking structure has been matched with the pin body of the lock pin structure, and the inter-door locking structure is in the inter-door locking state.

[0054] Figure 15 for Figure 1A schematic diagram of the partial structure of the article storage and retrieval device of the illustrated embodiment at the connection between the first opening and closing door and the base frame.

[0055] Figure 16 for Figure 1 A schematic diagram of the partial exploded structure of the article storage and retrieval device of the illustrated embodiment at the connection between the first opening and closing door and the base frame. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0057] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed herein, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0058] In the description of the present disclosure, it should be understood that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0059] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0060] like Figures 1 to 16 As shown, an embodiment of the present disclosure provides an article storage and retrieval device, which mainly includes a base frame 1, a first opening and closing door 2, a second opening and closing door 3, and an inter-door locking structure 6.

[0061] The first opening and closing door 2 is rotatably mounted on the base frame 1 to open or close the first opening and closing door 2. The second opening and closing door 3 is rotatably mounted on the base frame 1 to open or close the second opening and closing door 3. When both the first opening and closing door 2 and the second opening and closing door 3 are closed, the first opening and closing door 2 is located between the second opening and closing door 3 and the base frame 1.

[0062] The inter-door locking mechanism 6 has a locked state and an unlocked state. In the locked state, the inter-door locking mechanism 6 locks the relative position of the second door 3 and the first door 2; in the unlocked state, the inter-door locking mechanism 6 releases the relative position of the second door 3 and the first door 2. When the first door 2 and the second door 3 are simultaneously closed, the inter-door locking mechanism 6 is in the locked state. When the first door 2 and the second door 3 are simultaneously opened, the inter-door locking mechanism 6 switches from the locked state to the unlocked state.

[0063] Since the article storage and retrieval device is provided with an inter-door locking structure 6, when the article storage and retrieval device is closed, the first opening and closing door 2 and the second opening and closing door 3 are in a relatively locked state, and during the process of simultaneously opening the first opening and closing door 2 and the second opening and closing door 3, the inter-door locking structure 6 switches from the inter-door locked state to the inter-door unlocked state. There is no need to operate the inter-door locking structure 6 to open the first opening and closing door 2 and the second opening and closing door 3. Only one door locking structure, such as an electromagnetic lock, is needed to lock the article storage and retrieval device in the article storage state and the folded state, and the article storage and retrieval device can be opened by only unlocking the door locking structure. There is no need to unlock two door locking structures as in the prior art, which can simplify the operation process and reduce the control difficulty.

[0064] In some embodiments, the inter-door locking structure 6 switches from an unlocked state to a locked state during the process of closing the first and second doors 2, 3, either sequentially or simultaneously. This arrangement allows the second door 2 to rotate and the inter-door locking structure 6 to switch between the locked and unlocked states simply by pushing or pulling the second door 3, further simplifying operation and making the item storage and retrieval device more convenient and easier to use.

[0065] In some embodiments, the inter-door locking structure 6 includes a locking pin structure 61 and a locking hook 62. The locking pin structure 61 is provided on one of the first and second opening and closing doors 2 and 3 and includes a pin body 612. The locking hook 62 is provided on the other of the first and second opening and closing doors 2 and 3 and includes a pin slot 621. When the inter-doors are locked, the pin body 612 is located within the pin slot 621. When the inter-doors are unlocked, the pin body 612 is released from the pin slot 621. This inter-door locking structure 6 has a simple structure and is relatively low in cost.

[0066] In some embodiments, the lock hook 62 is configured so that when the door in which it is located rotates relative to the base frame 1, the lock hook 62 rotates relative to at least a portion of the door body in which it is located. This configuration facilitates smooth switching of the door locking structure 6 between the door locked state and the door unlocked state.

[0067] In some embodiments, the lock hook 62 is disposed on the second opening and closing door 3. The second opening and closing door 3 and the base frame 1 form a parallelogram linkage structure, and the lock hook 62 is disposed on the parallelogram linkage structure. The placement of the lock hook 62 on the parallelogram linkage structure allows the movement of the second opening and closing door 3 to drive the lock hook 62 to move, thereby changing the mating relationship between the lock hook 62 and the pin 612 of the lock pin structure 61, thereby switching between the inter-door locked state and the inter-door unlocked state, eliminating the need for special locking or unlocking operations, thereby simplifying the operation process.

[0068] In some embodiments, the second door 3 includes a reinforcing rod 34, the ends of which are hinged to two opposing links of the parallelepiped linkage. The reinforcing rod 34 improves the stability of the second door 3 when open; prevents the cover of the item storage and retrieval device from protruding outside the space defined by the second door when folded, facilitating the switching of the item storage and retrieval device; and helps reduce damage to the item storage and retrieval device or its contents.

[0069] In some embodiments, the second opening and closing door 3 includes multiple parallel reinforcing rods 34 disposed on both sides of the base frame 1. The two ends of each reinforcing rod 34 are hinged to two opposing links of the parallelogram linkage structure on that side. Providing multiple reinforcing rods 34 on both sides of the base frame 1 helps better achieve the above functions of the reinforcing rods 34.

[0070] For example, Figures 1 to 3 As shown, in some embodiments, the second opening and closing door includes a first door body 31, a second door body 32, a connecting rod 33, and a reinforcing rod 34. The first end of the first door body 31 is hinged to the base frame 1. The first end of the second door body 32 is hinged to the second end of the first door body 31. The first end of the connecting rod 33 is hinged to the base frame 1, and the second end of the connecting rod 33 is hinged to the second end of the second door body 32. The base frame 1, the first door body 31, the second door body 32, and the connecting rod 33 form a parallel four-bar linkage structure, and the two ends of each reinforcing rod 34 are respectively hinged to the first door body 31 and the connecting rod 33 on its side.

[0071] In some embodiments, the lock hook 62 is disposed on the reinforcing rod 34. Disposing the lock hook 62 on the reinforcing rod 34 facilitates utilizing the movement of the second opening and closing door 3 to switch the inter-door locking structure 6 between the inter-door locked state and the inter-door unlocked state, while also reducing the range of motion of the lock hook 62 and reducing interference with other components.

[0072] In some embodiments, the locking hook 62 and the reinforcing rod 34 may be integrated into a locking rod, thereby facilitating the processing of the locking hook 62 and eliminating the need for special installation of the locking hook 62 .

[0073] like Figure 3 As shown, a door locking structure 6 can be provided on each side of the base frame 1 to securely lock the article storage and retrieval device when the second door 3 is closed and stowed. Of course, in some embodiments not shown, the door locking structure 6 can be provided on only one side. In addition, two or more door locking structures 6 can be provided on each side of one or both sides.

[0074] In some embodiments, the lock pin structure 61 includes a first elastic member 613 and a stopper 614. The elastic force of the first elastic member 613 acts on the pin body 612, allowing the pin body 612 to be retracted relative to the door in which it is located under the action of an external force. The stopper 614 is used to limit the range of extension and retraction of the pin body 612 relative to the door in which it is located. The lock pin structure 61 of the inter-door locking structure 6 utilizes a spring pin assembly that cooperates with the pin slot 621 on the lock hook 62 to achieve locking and unlocking, thus reliably achieving locking and unlocking with a simple structure.

[0075] In some embodiments, the end of the pin body 612 that mates with the locking hook 62 includes a pressing surface on the side proximal to the locking hook 62. This pressing surface gradually moves away from the locking hook 62 along the axial direction of the pin body 612 from a position near the middle to the end, enabling the locking hook 62 to apply force from the side of the pin body 612 to push the pin body 612 inward along its own axial direction. The provision of the pressing surface helps reduce the number of specialized operating steps when switching the state of the inter-door locking mechanism 6. The pressing surface can be a flat surface, a curved surface, or a combination of a flat surface and a curved surface.

[0076] In some embodiments, the lock pin structure 61 includes a mounting base 611, and the lock pin structure 61 is mounted on the opening and closing door via the mounting base 611. The provision of the mounting base 611 facilitates rapid assembly and stable connection of the lock pin structure 61 with the opening and closing door, and also facilitates rapid replacement of the lock pin structure 61.

[0077] In some embodiments, the mounting base includes a receiving hole 6112A and a position-limiting elongated hole 6112B. The first elastic member 613 and the pin body 612 are mounted within the receiving hole 6112A. The position-limiting elongated hole 6112B communicates with the receiving hole 6112A and extends axially along the pin body 612. The position-limiting member 614 is disposed on the pin body 612 and slidably engages with the position-limiting elongated hole 6112B along the axial direction of the pin body 612.

[0078] In some embodiments, the article storage and retrieval device further includes a damping structure configured to slow the rotation of the first opening and closing door 2 when the first opening and closing door 2 rotates relative to the base frame 1. The damping structure can achieve its damping effect through mechanical, hydraulic, or electromagnetic means. The provision of the damping structure facilitates the switching of the inter-door locking mechanism 6 from the inter-door locked state to the inter-door unlocked state.

[0079] In some embodiments, the damping structure includes a second elastic member 7, the elastic force of the second elastic member 7 acts on the first opening and closing door 2 to slow down the rotation speed of the first opening and closing door 2 when the first opening and closing door 2 rotates relative to the base frame 1. Figure 16 In the illustrated embodiment, the second elastic member 7 comprises a butterfly spring. In embodiments not shown, the damping structure may also comprise a coil spring, a torsion spring, or an elastic pad. Implementing a damping structure for the second opening and closing door 2 using the second elastic member 7 is simple, easy to implement, low in cost, and requires minimal maintenance.

[0080] In some embodiments, the first opening and closing door 2 is hingedly connected to the base frame 1 via a connecting pin 801 , and the second elastic member 7 is mounted on the connecting pin 801 and applies an elastic force along the axial direction of the connecting pin 801 to the first opening and closing door 2 .

[0081] In some embodiments, the object storage and retrieval device further includes a door locking structure 5. The door locking structure 5 has a locked state and an unlocked state. In the locked state, the door locking structure 5 locks the relative position of the first opening and closing door 2 and the base frame 1 in the closed state. In the unlocked state, the door locking structure 5 unlocks the relative position of the first opening and closing door 2 and the base frame 1. The door locking structure 5 serves as a door lock for the object storage and retrieval device, controlling the opening and closing of the object storage and retrieval device.

[0082] The door locking structure 5 may, for example, include a lock slot provided on one of the base frame 1 and the first retractable door 2, and a lock hook, lock rod, or lock tongue provided on the other to cooperate with the lock slot. Alternatively, the door locking structure 5 may include a lock catch, lock hook, or lock rod provided on each of the base frame 1 and the first retractable door 2, respectively, and cooperating with each other. To ensure that the door locking structure 5 is directly unlocked after the identification component successfully verifies the user's identity verification information, an electromagnetic lock may be employed. Of course, the door locking structure 5 may also employ other door lock types, such as a mechanical lock.

[0083] In some embodiments, the item storage and retrieval device is a courier box. The base frame 1 is configured to be fixed on a mounting surface, for example. The mounting surface can be a vertical or inclined mounting surface. The vertical mounting surface includes a vertical surface at 90 degrees to the horizontal plane and a mounting surface with a preset angle deviation from the vertical plane. For example, the item storage and retrieval device can be fixed in a position that is convenient for a specific user to pick up and put items. For home users, the mounting surface can be located near the user's doorstep, corridor, or building entrance. For corporate users, the mounting surface can be located near the entrance of the unit, etc. Delivery personnel can deliver goods to the door at any time and can directly deliver the goods to the item storage and retrieval device, making it convenient for users to pick up items.

[0084] The following combination Figures 1 to 16 The article storage and retrieval device disclosed in the present invention is described in detail.

[0085] like Figures 1 to 3 As shown, an embodiment of the present disclosure provides an article storage and retrieval device, which mainly includes a base frame 1, a first opening and closing door, a second opening and closing door 3, a covering 4, a door locking structure 5 and an inter-door locking structure 6.

[0086] The first door 2 is located between the base frame 1 and the second door 3. The first door 2 and the second door 3 are coaxially hinged to the base frame 1. Thus, the first door 2 is rotatably mounted on the base frame 1 to open or close the first door 2; the second door 3 is rotatably mounted on the base frame 1 to open or close the second door 3.

[0087] The second opening and closing door 3 is located at the front side of the base frame 1 and includes a first door body 31 and a second door body 32. The first end of the first door body 31 is hinged to the lower end of the base frame 1, and the second end of the first door body 31 is hinged to the first end of the second door body 32.

[0088] The item storage and retrieval device has two states: a stowed state and a storage state. When not needed, the stowed state takes up relatively little space, creating a neat and aesthetically pleasing appearance. When needed, the storage and retrieval device opens to provide ample storage space. After delivery, the device opens to a convenient, user-friendly, and rational design.

[0089] like Figure 1 As shown, when the article storage and retrieval device is in the retracted state, the first door 2 and the second door 3 are both closed. The second door body 32 of the second door 3 is located above the first door body 31 and is engaged with the first door body 31 on the base frame 1 to form a first storage space.

[0090] The cover 4 is connected between the first opening and closing door 2 and the second opening and closing door. The cover 4 is a deformable cover, such as a flexible canopy made of a flexible material. When the article storage and retrieval device is in the retracted state, the cover 4 is folded and located in the first accommodation space.

[0091] like Figure 2 and Figure 3 As shown, in the item storage and retrieval device's item accommodating state, the second door body 32 is located in front of the first door body 31 and forms an angle with the first door body 31. The second end of the second door body 32 is higher than the first door body 31. The base frame 1, the first door body 31, the second door body 32, the first opening and closing door 2, and the cover 4 can be combined to form a second accommodating space. In some embodiments, in the item accommodating state, a right angle is formed between the first door body 31 and the base frame 1, and a right angle is formed between the second door body 32 and the first door body 31. In the item accommodating state of the item storage and retrieval device, the second opening and closing door 2 can be rotated between the first opening and closing door 3 and the base frame 1 to switch between an open or closed state. When the second opening and closing door 2 is closed, the cover 4 is unfolded to enclose the second accommodating space. When the second opening and closing door 2 is opened until it is fully opened, the cover 4 is at least partially folded to open the second accommodating space.

[0092] According to the disclosed embodiment of the article storage and retrieval device, when the article storage and retrieval device is in the retracted state, the article storage and retrieval device is relatively small. When the article storage and retrieval device is in the storage and retrieval device state, the base frame 1, the first opening and closing door 2, the second opening and closing door 3, and the cover 4 can be enclosed to form a second storage space for placing articles. Thus, the article storage and retrieval device can occupy less space when not receiving articles, and can have a larger storage space when storing articles. When the article storage and retrieval device is used as a courier box, door-to-door delivery can be achieved when the delivery time between the consumer and the courier cannot be fully agreed.

[0093] The height ratio of the first opening and closing door 31 to the second opening and closing door 32 can be adjusted to suit actual needs, for example, to a ratio of 1:1 or 2:1. This ratio determines the front-to-back and top-to-bottom dimensions of the second storage space formed when the second opening and closing door 3 is open, providing a flexible configuration that can be adjusted based on factors such as the size and shape of the items being stored or accessed.

[0094] like Figure 3As shown, the item storage and retrieval device also includes connecting rods 33. Two connecting rods 33 are respectively disposed on the left and right ends of the front side of the base frame 1. The first end of the connecting rod 33 is hinged to the base frame 1, and the second end of the connecting rod 33 is hinged to the second end of the second door 32. The base frame, connecting rods 33, first door 31, and second door 32 form a parallelogram structure. The provision of connecting rods 33 can further stabilize the movement path of the item storage and retrieval device during state switching and improve the stability of the item storage and retrieval device when storing items.

[0095] like Figure 3 As shown, the second opening and closing door 3 further includes a plurality of mutually parallel reinforcing rods 34 provided on both sides of the base frame 1 , and both ends of each reinforcing rod 34 are hinged to the first door body 31 and the connecting rod 33 on the side respectively.

[0096] In some embodiments, as Figure 2 As shown, the cover 4 includes a flexible canopy surface. When the item storage and retrieval device is in the item storage and retrieval device state, the flexible canopy surface can completely enclose the second storage space. The flexible canopy surface can be made of a flexible material such as cloth, plastic, rubber sheet, composite flexible material, or a combination of two or more flexible materials.

[0097] like Figure 2 As shown, the first door 2 is connected to the cover 4. When the storage device is in the stowed state, the first door 2 and the cover 4 are both located in the first storage space. When the storage device is in the storage space, the cover 4 is driven by the first door 2 to expand or fold.

[0098] like Figures 3 to 6 As shown, the first opening and closing door 2 is a U-shaped frame, with its two free ends hinged to the base frame 1. The first end of the cover 4 is connected to the first opening and closing door 2, and the second end of the cover 4 is connected to the second opening and closing door 3. The first opening and closing door 2 is configured as a U-shaped frame, which has a simple structure, is easy to operate, and is convenient for placing taller items in the second storage space.

[0099] like Figure 2 and Figure 15 、 Figure 16 As shown, in order to make the covering 4 fold more orderly, the article storage device further includes at least one support rod 9 connected to the covering 4 , and the at least one support rod 9 is located between the first opening and closing door 2 and the second opening and closing door 3 .

[0100] The support rod 9 is U-shaped, wherein the two free ends of the support rod 9 can be hinged to the base frame 1.

[0101] In some embodiments, the article storage and retrieval device includes a door locking structure 5 , which is used to lock the relative position of the first opening and closing door 2 and the base frame 1 .

[0102] The door locking mechanism 5 has a locked state and an unlocked state. In the locked state, the door locking mechanism 5 locks the relative position of the first door 2 and the base frame 1 in the closed state. In the unlocked state, the door locking mechanism 5 releases the relative position of the first door 2 and the base frame 1. The door locking mechanism 5 may include, for example, an electromagnetic lock for locking the relative position of the first door 2 and the base frame 1.

[0103] If the door locking structure 5 does not release the positional lock between the first opening and closing door 2 and the base frame 1, and the second opening and closing door 3 opens together with the first opening and closing door 2, and the pin body 612 and the pin groove 621 are disengaged during the opening process of the second opening and closing door 3 and the first opening and closing door 2, the second opening and closing door 3 cannot be opened independently from the first opening and closing door 2 because the relative position of the second opening and closing door 3 and the first opening and closing door 2 is locked by the inter-door locking structure 6. In other words, the article storage and retrieval device cannot be opened by pulling the second opening and closing door 3 alone when both the first opening and closing door 2 and the second opening and closing door 3 are closed and the door locking structure 5 is in the door locking state.

[0104] like Figure 3 As shown, the base frame 1 includes two side panels, a bottom panel, and a top panel. When the item storage and retrieval device is stowed, the two side panels, bottom panel, top panel, and second opening and closing door 3 together form a closed first storage space. The first end of the first door body 31 of the second opening and closing door 3 is hinged to the front end of the bottom panel. The base frame 1 may also include a rear support frame provided with a fixed mounting structure for securing the base frame 1.

[0105] like Figure 4 and Figure 5 As shown, the door locking mechanism 5 is an electromagnetic lock comprising a retractable locking block mounted on the lower end of the top plate of the base frame 1. When the first door 2 is closed, the locking block extends to block the top front side of the first door 2, locking the door 2 in the closed state. When the locking block retracts into the top plate, the first door 2 can be opened and closed freely. This door locking mechanism 5 is relatively simple to set up and operate.

[0106] The item access device may also include an information input device disposed on the base frame 1 or the second opening and closing door 3. Examples of the information input device include a touch screen and a camera. The information input device may also include a fingerprint recognition device, a facial recognition device, a keyboard input device, etc. The information input device may cooperate with the door locking mechanism 5 to identify and confirm the received consumer information before unlocking the door, preventing it from being taken away by others.

[0107] In some embodiments, the item access device may include an information carrier, such as a QR code or barcode. When an operator wishes to unlock the door locking mechanism 5, they can scan the code with a mobile phone. The mobile phone recognizes the information on the information carrier and sends the information to a server, which remotely unlocks the door locking mechanism 5. The provision of an information carrier can save power compared to electronic components such as touch screens.

[0108] The item access device may also include an energy supply device, which may be mounted on the base frame 1. The energy supply device may include a battery, a solar panel, and / or a small transformer. The energy supply device is used to power electronic components such as the information input device or the door locking mechanism 5. The energy supply device may include a solar panel. The solar panel stores electrical energy when exposed to light, which in turn provides power to the terminal.

[0109] In the case of a touch screen, in order to save power, the touch screen can be set to be in standby mode when the item storage and retrieval device is not in use. The screen will only light up when a pre-set start mechanism is triggered when it is in use.

[0110] In order to facilitate the switching of the parallel four-link structure between the closed state and the fully open state, the second opening and closing door 3 may further include a handle.

[0111] When the second opening and closing door 3 is to be switched from the closed state to the fully open state, the second opening and closing door 3 is pulled forward, and the second opening and closing door 3 rotates forward with the connection point with the bottom plate as the axis. At this time, the second opening and closing door 3 is restricted by the left and right connecting rods 33, and rotates with the connection point of the first door body 31 and the second door body 32 as the axis and changes its position, presenting a Figure 2 and Figure 3 Shown fully open.

[0112] The following combination Figure 3 、 Figures 6 to 14 The door locking structure 6 of some embodiments of the present disclosure is described in detail.

[0113] like Figure 3 As shown, a door locking structure 6 can be provided on the left and right sides of the base frame 1 respectively to make the locking between the first opening and closing door 2 and the second opening and closing door 3 more reliable and firm. Moreover, when an external force is applied to unlock the door, the forces on the left and right sides of the first opening and closing door 2 can be more balanced, thereby preventing lateral deviation from affecting the fitting accuracy and service life of the components.

[0114] like Figure 2 、 Figure 3 、 Figures 12 to 14As shown, each door locking structure 6 includes a lock pin structure 61 and a lock hook 62. The lock pin structure 61 is provided on the first opening and closing door 2. The lock hook 62 is provided on the second opening and closing door 3.

[0115] like Figures 7 to 9 As shown, in some embodiments, the locking pin structure 61 includes a mounting seat 611 , a pin body 612 , a first elastic member 613 and a limiting member 614 .

[0116] The mounting base 611 includes a fixing base 6111 and a pin base 6112 fixed on the fixing base 6111. The fixing base 6111 is provided with two mounting holes.

[0117] The pin holder 6112 is provided with a receiving hole 6112A and a position-limiting elongated hole 6112B. The first elastic member 613 and the pin body 612 are mounted within the receiving hole 6112A. The position-limiting elongated hole 6112B communicates with the receiving hole 6112A and extends axially along the pin body 612. The position-limiting member 614 is provided on the pin body 612 and slidably engages with the position-limiting elongated hole 6112B along the axial direction of the pin body 612.

[0118] The elastic force of the first elastic member 613 acts on the pin body 612, so that the pin body 612 can be retracted and arranged on the opening and closing door under the action of external force. The first elastic member 613 is, for example, a coil spring.

[0119] The limiting member 614 is used to limit the extension and contraction range of the pin body 612 relative to the opening and closing door where it is located. The limiting member 614 is, for example, a cylindrical pin.

[0120] In some embodiments, the pin holder 6112 comprises a cylinder and wings located on either side of the cylinder, with one end of the cylinder fixed to the fixing seat 6111. The receiving hole 6112A is the hollow portion of the cylinder. The limiting elongated holes 6112B are formed in both the wings and the sidewall of the cylinder where the wings are located. This arrangement enhances the strength of the locking pin structure 61 and effectively prevents the pin body 612 from falling out of the pin holder 6112.

[0121] The first door 2 is provided with a through-hole. When the lock pin structure 61 is installed on the first door 2, the pin seat 6112 is inserted into the corresponding through-hole on the first door 2, so that the pin body 612 protrudes from the surface of the first door 2 when extended, and retracts into the surface of the first door 2 when retracted.

[0122] In addition, a slope 6121 serving as a pushing surface is provided on the side of the end of the pin body 612 that cooperates with the lock hook 62, close to the lock hook 62. The slope 6121 gradually moves away from the lock hook 62 from the middle to the end so that the lock hook 62 can apply force from the side of the pin body 612 to push the pin body 612 to retract inward along its own axis.

[0123] The lock hook 62 is provided on the second opening and closing door 3. In some embodiments, the lock hook 62 is configured so that when the second opening and closing door 3 on which the lock hook 62 is located rotates relative to the base frame 1, the lock hook 62 rotates relative to the plate of the second opening and closing door 3 on which the lock hook 62 is located. For example, the second opening and closing door 3 and the base frame 1 form a parallel four-bar linkage structure, and the lock hook 62 is provided on the parallel four-bar linkage structure. Figures 10 to 14 As shown, the second opening and closing door 3 includes a reinforcing rod 34 , and the locking hook 62 is disposed on the reinforcing rod 34 .

[0124] In the inter-door locking structure 6 of this embodiment, in the inter-door locked state, the pin body 612 is located within the pin slot 621, locking the relative position of the second opening and closing door 3 and the first opening and closing door 2. In the inter-door unlocked state, the pin body 612 is released from the pin slot 621, releasing the relative lock between the second opening and closing door 3 and the first opening and closing door 2. Furthermore, the inter-door locking structure 6 is in the inter-door locked state when the first opening and closing door 2 and the second opening and closing door 3 are simultaneously closed; it switches from the inter-door locked state to the inter-door unlocked state when the first opening and closing door 2 and the second opening and closing door 3 are simultaneously opened; and it switches from the inter-door unlocked state to the inter-door locked state when the first opening and closing door 2 and the second opening and closing door 3 are sequentially closed or closed simultaneously.

[0125] According to the above description, the door locking structure 5 is used to realize the locking between the first opening and closing door 2 and the base frame 1, and the inter-door locking structure 6 is used to realize the locking between the first opening and closing door 2 and the second opening and closing door 3. The lock pin structure 61 of the inter-door locking structure 6 is set as a spring pin assembly. Figure 10 The locking hook 62 of the inter-door locking structure 6 is integrated with the reinforcing rod 34 where it is located to form a locking rod. The hook 62 is located at the end where the reinforcing rod 34 connects to the connecting rod 33 and has a pin slot 621. The spring pin assembly is fixedly mounted in the mounting hole of the first retractable door 2 via the fixing seat 6111 of its mounting seat 611. The end of the pin body 612 has an inclined surface 6121 that serves as a pressing surface. This inclined surface 6121 faces the locking hook 62, facilitating the movement of the locking hook 62 toward the pin body 612, pressing the pin body 612 along the inclined surface 6121 and causing it to retract into the surface of the first retractable door 2. A stopper 614 is provided on two radially opposing sides of the middle portion of the pin body 612. A coil spring, serving as the first elastic member 613, surrounds the outer circumference of the pin body 612. The mounting seat 611 includes a pin seat 6112, which has a pin holder 6112 that accommodates the pin body 612 and the first elastic member 613. A limiting long hole 6111B is provided on the side wall of the pin seat 6112 for the limiting member to move linearly. The first elastic member 613 is located between the limiting member 614 and the fixing seat 6111. When the pin body 612 is subjected to an external force or loses the external force, it can retract or extend along the extension direction of the limiting long hole 6111B. The structure of the locking rod is as follows Figure 10The main body is a reinforcing rod 34 arranged on the parallel four-bar structure of the second opening and closing door 3, and a lock hook 62 is provided at the upper end of the locking rod. The lock hook 62 is used to hook the pin body 612 to achieve position locking of the first opening and closing door 2 and the second opening and closing door 3.

[0126] like Figure 3 As shown, in the second opening and closing door 3, a plurality of mutually parallel reinforcing rods 34 are provided between the connecting rod 33 and the first door body 31. The number of reinforcing rods 34 is not specifically limited, for example, 2 or 3. The connection relationship between the plurality of reinforcing rods 34 and the connecting rod 34 to which they are hinged and the first door body 31 also adopts the quadrilateral principle.

[0127] The reinforcing rod 34 can realize the opening and closing of the second opening and closing door 3 more smoothly and firmly and is conducive to stabilizing it in the fully open state. On the other hand, when taking out items, the first door 2 needs to be opened to the second door 3. At this time, the cover 4 will retract with the movement of the first door 2. Because the cover 4 is mostly made of soft material and has a flexible shape, if the reinforcing rod 34 is not provided, the side of the cover 4 is likely to extend beyond the space formed by the door body of the second door 3 and the connecting rod 33. After taking out the items, the second door 3 needs to be fastened to the base frame 1 to adjust the cover 4, otherwise part of the cover 4 will be clamped. After the reinforcing rod 34 is provided, the reinforcing rod 34 can serve as a barrier and place the cover 4. When the first door 2 rotates toward the second door 3, the side of the cover 4 is blocked by the reinforcing rod 34 and placed in the second storage space. Therefore, after taking out the items, the user can directly close the first and second doors 2, 3 and lock the item storage device without having to manually adjust the cover 4, thereby improving user convenience. Moreover, when the item storage and retrieval device is in the storage state, the reinforcing rod 34 can serve as a protective barrier similar to a fence. If the spacing between adjacent reinforcing rods 34 and the distance between the reinforcing rods 34 and the adjacent door body or base frame 1 are set to be smaller, it can also hinder others from deliberately reaching into the bottom of the cover 4 from the bottom side of the item storage and retrieval device, which helps prevent the bottom of the cover 4 or the items inside it from being damaged by human beings.

[0128] The article storage and retrieval device of the embodiment of the present disclosure realizes the locking of the first opening and closing door 2, the second opening and closing door 3 and the base frame 1 by the mechanical structure of the electromagnetic lock serving as the door locking structure 5 and the inter-door locking structure 6. When the second opening and closing door 3 of the outer layer of the article storage and retrieval device is in a closed state, the second opening and closing door 3 is buckled on the base frame 1, and the first opening and closing door 2 is located in the first accommodating space enclosed by the second opening and closing door 3 and the base frame 1. Since the inter-door locking structure 6 is provided, the second opening and closing door 3 cannot be opened alone. Therefore, the first opening and closing door 2 and the second opening and closing door 3 can share the door locking structure 5 to lock the article storage and retrieval device, so that the article storage and retrieval device can be locked by a door locking structure 5 when it is in the article accommodating state with the first opening and closing door 2 closed alone or in the retracted state with the first opening and closing door 2 and the second opening and closing door 3 closed at the same time.

[0129] like Figure 15 and Figure 16 As shown, the article storage and retrieval device also includes a damping structure, which includes a second elastic member 7. The elastic force of the second elastic member 7 acts on the first opening and closing door 2 to slow down the rotation speed of the first opening and closing door 2 when the first opening and closing door 2 rotates relative to the base frame 1.

[0130] Figure 15 and Figure 16 In the embodiment, the connecting rod 33 and the supporting rod 9 of the first and second opening and closing doors 2 are hingedly connected to the rear end of the inner side wall of the base frame 1 via the same connecting pin 801. The end of the connecting rod 33, the butterfly spring serving as the second elastic member 7, the end of the first opening and closing door 2, the end of the supporting rod 9, and the gasket 802 are sequentially fitted onto the connecting pin 801 from the side closest to the side wall of the base frame 1 to the side away from the side wall. The end of the connecting rod 33, the butterfly spring, the end of the first opening and closing door 2, the end of the supporting rod 9, and the gasket 802 are then connected to the end of the connecting pin 801 with a screw 803. The end of the connecting rod 33, the butterfly spring, the end of the first opening and closing door 2, the end of the supporting rod 9, and the gasket 802 are press-fitted onto the connecting pin 801, thereby achieving a hinged connection between the various components and the base frame 1 and simultaneously damping the motion between the first and second opening and closing doors 2, 3.

[0131] The use of a damping structure can increase the frictional resistance of the first opening and closing door 2 during relative movement with respect to the base frame 1 and other connected components. When the second opening and closing door 3 is pulled outward, the first opening and closing door 2 has damping, which facilitates the automatic separation of the second opening and closing door 2 from the base frame 1, making it easier for the door locking structure 6 to unlock itself.

[0132] To further stabilize the fully open state of the second door 3, an inter-panel locking structure may be provided to maintain the position of the second door 3 when fully open. The inter-panel locking structure may be any type of locking structure, such as a latch, a hook, or the like. A plate-limiting structure, such as a limiting protrusion provided on the lower portion of the base frame 1, may also be provided to limit the opening extent of the first door 31. Of course, the inter-panel locking structure and the plate-limiting structure are not required; the positional stability and limitation of the second door 3 when fully open can be achieved through the coordination of the positions of the connected components.

[0133] The process of switching the item receiving device from the stowed state to the item receiving state and placing items is as follows:

[0134] The door locking structure 5 is placed in the door unlocking state. The article access device may include an identity recognition component for placing the door locking structure 5 in the door unlocking state after successfully verifying the identity verification information provided by the user.

[0135] Pull the second door 3 outward. When the second door 3 is pulled, the first door 2 moves outward along with the second door 3 due to the locking action of the inter-door locking structure 6. As the parallel four-bar linkage of the second door 3 deforms, the lock hook 62 on the locking rod and the pin 612 change position accordingly. The pin 612 moves within the pin slot 6121 toward the opening of the lock hook 62. At the same time, the damping structure of the first door 2 generates a friction force opposite to the direction of the applied force, causing the pin 612 on the first door 2 to disengage from the lock hook 62. This allows the inter-door locking structure 6 to switch from the inter-door locked state to the inter-door unlocked state during the opening process of the first and second doors 2, 3.

[0136] When the second opening and closing door 3 is fully opened and the items are placed in the second storage space surrounded by the base frame 1, the first opening and closing door 2, the second opening and closing door 3, etc., the first opening and closing door 2 can be closed, and at the same time, the cover 4 can be expanded to close the second storage space, and the first opening and closing door 2 and the base frame 1 can be locked by the door locking structure 5.

[0137] The process of taking out an item from the item storage and retrieval device and switching the item receiving device from the item storage state to the unfolded state is as follows:

[0138] Switch the door locking structure 5 to the door unlocking state, rotate the first opening and closing door 2 downward, and the multiple reinforcing rods 34 set on the parallel four-bar structure of the second opening and closing door 3 will block the gradually retracted cover 4 to prevent the cover 4 from protruding from both sides.

[0139] After removing the item, the second door 3 is pushed toward the base frame 1. During this pushing process, the outer edge of the lock hook 62 on the locking rod presses the inclined surface 6121 of the pin 612 toward it. Under the pressure of the lock hook 62, the pin 612 retracts into the pin seat 6112. When the lock hook 62 continues to move completely over the pin 612, the pin 612 extends under the elastic force of the first elastic member 613 and is stuck in the pin groove 6121 of the lock hook 62. At this time, the inter-door locking structure 6 is in its inter-door locking state, locking the relative positions of the first door 2 and the second door 3. When the second door 3 is fully engaged with the base frame 1 and in the closed state, the first door 2 is also closed under the push of the second door 3. At this time, the door locking structure 5 is switched to the door locking state to lock the first door 2 to the base frame 1, thus completing the closing and locking of the item collection device.

[0140] The inter-door locking structure 6 provided in the article storage and retrieval device allows a user to simultaneously open or retract the first and second opening and closing doors 2, 3 with a single operation, simplifying the operation process and facilitating use. After the article storage and retrieval device is closed and locked, the inter-door locking structure 6 is in the inter-door locked state. As long as the door locking structure 5 is in the door locked state, even if the second opening and closing door 3 is pulled outward, the second opening and closing door 3 cannot be separated from the first opening and closing door 2. Therefore, the article storage and retrieval device cannot be opened arbitrarily, which helps prevent improper use such as human error.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit them. Although the present disclosure has been described in detail with reference to preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solutions claimed for protection in the present disclosure.

Claims

1. An article storage and retrieval device, characterized in that: include: Base frame (1); A first opening and closing door (2) is rotatably arranged on the base frame (1) to open or close the first opening and closing door (2); a second opening and closing door (3) rotatably arranged on the base frame (1) to open or close the second opening and closing door (3); when the first opening and closing door (2) and the second opening and closing door (3) are both closed, the first opening and closing door (2) is located between the second opening and closing door (3) and the base frame (1); and The inter-door locking structure (6) has an inter-door locking state for locking the relative position of the second opening and closing door (3) and the first opening and closing door (2), and an inter-door unlocking state for releasing the relative position of the second opening and closing door (3) and the first opening and closing door (2), and the inter-door locking structure (6) is in the inter-door locking state when the first opening and closing door (2) and the second opening and closing door (3) are closed at the same time, and the inter-door locking structure (6) switches from the inter-door locking state to the inter-door unlocking state when the first opening and closing door (2) and the second opening and closing door (3) are opened at the same time, and the inter-door locking structure (6) includes a lock pin structure (61 ) and a lock hook (62), the lock pin structure (61) is arranged on one of the first opening and closing door (2) and the second opening and closing door (3) and includes a pin body (612), the lock hook (62) is arranged on the other of the first opening and closing door (2) and the second opening and closing door (3) and includes a pin groove (621), the lock hook (62) is arranged so that when the opening and closing door where it is located rotates relative to the base frame (1), the lock hook (62) rotates relative to at least part of the door body of the opening and closing door where it is located, in the locked state between the doors, the pin body (612) is located in the pin groove (621), and in the unlocked state between the doors, the pin body (612) is out of the pin groove (621).

2. The article storage and retrieval device according to claim 1, characterized in that: The inter-door locking structure (6) switches from the inter-door unlocking state to the inter-door locking state during the process of the first opening and closing door (2) and the second opening and closing door (3) being closed successively or simultaneously.

3. The article storage and retrieval device according to claim 1, characterized in that: The locking hook (62) is arranged on the second opening and closing door (3); the second opening and closing door (3) and the base frame (1) form a parallel four-link structure; and the locking hook (62) is arranged on the parallel four-link structure.

4. The article storage and retrieval device according to claim 3, characterized in that: The second opening and closing door (3) comprises a reinforcing rod (34), the two ends of the reinforcing rod (34) are respectively hinged to two opposite connecting rod structures of the parallel four-link structure, and the locking hook (62) is arranged on the reinforcing rod (34).

5. The article storage and retrieval device according to claim 4, characterized in that: The second opening and closing door (3) comprises: a first door body (31), wherein a first end of the first door body (31) is hinged to the base frame (1); a second door body (32), wherein a first end of the second door body (32) is hinged to a second end of the first door body (31); A connecting rod (33), wherein a first end of the connecting rod (33) is hinged to the base frame (1), a second end of the connecting rod (33) is hinged to the second end of the second door body (32), the base frame (1), the first door body (31), the second door body (32) and the connecting rod (33) form the parallel four-link structure, and both ends of the reinforcing rod (34) are hinged to the first door body (31) and the connecting rod (33), respectively.

6. The article storage and retrieval device according to claim 1, characterized in that: The locking pin structure (61) comprises: a first elastic member (613), wherein the elastic force of the first elastic member (613) acts on the pin body (612), so that the pin body (612) can be telescopically arranged on the opening and closing door where it is located under the action of an external force; The limiting member (614) is used to limit the telescopic range of the pin body (612) relative to the opening and closing door where it is located.

7. The article storage and retrieval device according to claim 6, characterized in that: The end of the pin body (612) that cooperates with the lock hook (62) includes a pushing surface on a side close to the lock hook (62), and the pushing surface gradually moves away from the lock hook (62) from a position close to the middle to the end along the axial direction of the pin body (612) so that the lock hook (62) can apply force from the side of the pin body (612) to push the pin body (612) to retract inward along its own axial direction.

8. The article storage and retrieval device according to claim 6, characterized in that: The lock pin structure (61) comprises a mounting seat (611), and the lock pin structure (61) is mounted on the opening and closing door via the mounting seat (611). The mounting seat comprises: an accommodating hole (6112A), wherein the first elastic member (613) and the pin body (612) are installed; and The limiting long hole (6112B) is connected to the accommodating hole (6112A) and extends along the axial direction of the pin body (612). The limiting member (614) is provided on the pin body (612) and is slidably matched with the limiting long hole (6112B) along the axial direction of the pin body (612).

9. The article storage and retrieval device according to any one of claims 1 to 8, characterized in that: The article storage and retrieval device further comprises a damping structure, wherein the damping structure is used to slow down the rotation speed of the first opening and closing door (2) when the first opening and closing door (2) rotates relative to the base frame (1).

10. The article storage and retrieval device according to claim 9, characterized in that: The damping structure comprises a second elastic member (7), wherein the elastic force of the second elastic member (7) acts on the first opening and closing door (2) to slow down the rotation speed of the first opening and closing door (2) when the first opening and closing door (2) rotates relative to the base frame (1).

11. The article storage and retrieval device according to claim 10, characterized in that: The first opening and closing door (2) and the second opening and closing door (3) are hingedly connected to the base frame (1) via a connecting pin (801); the second elastic member (7) is sleeved on the connecting pin (801) and applies an elastic force along the axial direction of the connecting pin (801) to the first opening and closing door (2).

12. The article storage and retrieval device according to any one of claims 1 to 8, characterized in that: The article storage and retrieval device further comprises a door locking structure (5), wherein the door locking structure (5) has a door locking state for locking the relative position of the first opening and closing door (2) and the base frame (1), and a door unlocking state for releasing the relative position lock of the first opening and closing door (2) and the base frame (1).

13. The article storage and retrieval device according to any one of claims 1 to 8, characterized in that: The second opening and closing door (3) and the base frame (1) form a parallel four-link structure, and the second opening and closing door (3) includes a plurality of reinforcing rods (34) arranged on both sides of the base frame (1) and parallel to each other, and the two ends of each reinforcing rod (34) are respectively hinged to two opposite link structures of the parallel four-link structure on the side.

14. The article storage and retrieval device according to claim 13, characterized in that: The second opening and closing door comprises: a first door body (31), wherein a first end of the first door body (31) is hinged to the base frame (1); a second door body (32), wherein a first end of the second door body (32) is hinged to a second end of the first door body (31); A connecting rod (33), wherein a first end of the connecting rod (33) is hinged to the base frame (1), and a second end of the connecting rod (33) is hinged to the second end of the second door body (32); the base frame (1), the first door body (31), the second door body (32) and the connecting rod (33) form the parallel four-link structure, and both ends of each reinforcing rod (34) are respectively hinged to the first door body (31) and the connecting rod (33) on the same side.

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