Goods shelf, carriage and vehicle

Abstract

The embodiment of the utility model provides a goods shelf, a carriage and a vehicle, and relates to the technical field of goods transportation. The goods shelf comprises a first shelf body and a second shelf body, the first shelf body is used for being arranged on the side portion of a compartment body, and the first shelf body is located in the compartment body; the second frame body is used for being arranged in the carriage body, and the second frame body is located on the side, away from the side portion of the carriage body, of the first frame body; the folding assembly is connected between the first frame body and the second frame body, and the folding assembly is used for bearing goods; the telescopic assembly is connected between the first frame body and the second frame body, and the telescopic assembly stretches or compresses to enable the second frame body to move away from or towards the first frame body and drive the folding assembly to be unfolded or folded. According to the goods shelf, the carriage and the vehicle, the goods shelf is provided with the folding assembly, so that the occupied space of the goods shelf can be reduced, and the carriage body can be used for containing large goods.

Description

Shelves, carriages and vehicles Technical Field

[0001] This application relates to the field of cargo transportation technology, and in particular to a rack, carriage, and vehicle. Background Technology

[0002] As people's living standards improve, the demand for urban distribution of grains, oils, beverages, fruits, and other goods continues to increase.

[0003] The relevant technology involves installing shelves inside the cargo compartment of urban distribution vehicles, which allows for the categorized storage of goods.

[0004] However, in some scenarios, the shelving occupies a large amount of space, making it difficult to place large goods in the carriage itself. Summary of the Invention

[0005] This application provides a shelf, a carriage, and a vehicle to reduce the space occupied by the shelf, so that the carriage body can be used to place large goods.

[0006] In a first aspect, embodiments of this application provide a shelf, comprising:

[0007] The first frame is used to be installed on the side of the carriage body, and the first frame is located inside the carriage body;

[0008] The second frame is used to be installed inside the carriage body. The second frame is located on the side of the first frame away from the carriage body.

[0009] A folding assembly, which connects the first frame and the second frame, is used to carry goods;

[0010] The telescopic assembly connects the first frame and the second frame. The telescopic assembly extends or compresses to move the second frame away from or toward the first frame, and drives the folding assembly to unfold or fold.

[0011] In one possible implementation, the folding component includes:

[0012] Multiple connectors are arranged at intervals in sequence. One of the two outermost connectors is connected to the first frame, and the other is used to connect to the second frame.

[0013] Multiple folding components, each connected between two adjacent connecting components, are used to carry goods.

[0014] In one possible implementation, the folding member includes:

[0015] The first folding segment, one end of which is flexibly connected to one of the two adjacent connectors;

[0016] The second folding segment has one end flexibly connected to the other end of the first folding segment, and the other end of the second folding segment is flexibly connected to the other of the two adjacent connectors.

[0017] In one possible implementation, at least one of the first folded segment and the second folded segment includes a connecting portion and two curved portions, the two curved portions being disposed at both ends of the connecting portion, and the stiffness of the curved portions being less than the stiffness of the connecting portion.

[0018] In one possible implementation, two folding members are connected between two adjacent connectors, and the two folding members are arranged symmetrically.

[0019] In one possible implementation, both the connector and the folding component are made of aluminum or aluminum alloy.

[0020] In one possible implementation, the first frame is used to be screwed, snapped, welded or riveted to at least one of the side wall, bottom wall and top wall of the carriage body.

[0021] In one possible implementation, the telescopic component is a mechanical telescopic rod, an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod.

[0022] In one possible implementation, the number of folding components is multiple; at least one of the first frame and the second frame includes:

[0023] Multiple beams extend along the length of the shelf, and each beam is spaced apart along the height of the shelf, with the height of the shelf perpendicular to its length.

[0024] Multiple longitudinal beams extend along the height of the rack, and each longitudinal beam is spaced apart along the length of the rack. The longitudinal beams are connected to the crossbeams.

[0025] At least one of the crossbeams and longitudinal beams is connected to the expansion joint;

[0026] Each folding component is connected to a crossbeam between two adjacent longitudinal beams.

[0027] In one possible implementation, the bottom of the second frame is used for a rolling or sliding connection with the bottom of the carriage body.

[0028] Secondly, embodiments of this application provide a carriage, including a carriage body and any of the shelves provided in the first aspect disposed within the carriage body.

[0029] Thirdly, embodiments of this application provide a vehicle, including a vehicle body and a passenger compartment as provided in the second aspect, disposed within the vehicle body.

[0030] The rack, carriage, and vehicle provided in this application embodiment have the following features: The rack is constructed with a first frame located on the side of the carriage body, within the carriage body. This first frame provides a supporting foundation for the entire rack and ensures that the rack is not prone to swaying within the carriage body, thereby improving the stability and safety of cargo transportation. A second frame is also constructed within the carriage body, located on the side of the first frame away from the carriage body, thus forming the main frame of the rack together with the first frame. Finally, a folding assembly is provided, connecting the first and second frames, allowing the folding assembly to be used to carry goods when unfolded.

[0031] By incorporating a telescopic assembly that connects the first and second frames, extending the telescopic assembly allows the second frame to move away from the first frame, thereby unfolding the folding assembly and providing sufficient space for placing goods. Conversely, compressing the telescopic assembly allows the second frame to move towards the first frame, folding the folding assembly and allowing the shelving to be stored on the side of the carriage body. This reduces the space occupied by the shelving and frees up more space in the carriage body for placing large goods. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0033] Figure 1 is a partial structural schematic diagram of the carriage provided in an embodiment of this application;

[0034] Figure 2 is a schematic diagram of the structure of the shelf in Figure 1;

[0035] Figure 3 is a schematic diagram of the folding component in Figure 2;

[0036] Figure 4 is a side view of Figure 3;

[0037] Figure 5 is a schematic diagram of the connection between the connector and the folding component in Figure 4.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10-Shelf; 20-Carriage body; 21-First doorway; 22-Second doorway; 30-Side door; 40-Rear door;

[0040] 100 - First frame;

[0041] 200 - Second frame; 210 - Crossbeam; 220 - Longitudinal beam; 230 - Clearance opening;

[0042] 300 - Folding assembly; 301 - Connector; 302 - Folding component; 310 - First folding section; 311 - Connecting part; 312 - Bending part; 320 - Second folding section;

[0043] 400 - Telescopic assembly;

[0044] 500-roller assembly;

[0045] X - length of the shelf; Y - width of the shelf; Z - height of the shelf.

[0046] To facilitate understanding of the embodiments of this application, the spline curves and arrows used in the reference numerals in the accompanying drawings are explained below: the components indicated by spline curves without arrows can be solid components, that is, components with solid structures; the components indicated by spline curves with arrows can be virtual components, that is, components without solid structures; in some cases, the components indicated by spline curves with arrows can also be assemblies with solid structures or virtual structures.

[0047] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the embodiments of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships (if present), are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Where there is no conflict, embodiments of this application and the various features thereof can be combined with each other, all of which are within the scope of protection of this application.

[0050] This application provides a vehicle, including a vehicle body (not shown in the figure) and a passenger compartment connected to the vehicle body.

[0051] The carriage is used to store goods; the carriage is connected to the vehicle body, which supports the carriage and drives the carriage to move, so as to realize the transportation of goods.

[0052] In some embodiments, the vehicle body includes a frame and a cab, both of which are mounted on the frame, with the cab located on one side of the cab.

[0053] In this embodiment, the driver's cab is located on one side of the vehicle body to provide operating space for the driver; the vehicle frame can be equipped with wheel assemblies, drive assemblies and power transmission assemblies, and the drive assemblies can drive the wheel assemblies to rotate through the power transmission assemblies, thereby realizing the transportation function of the vehicle body.

[0054] It should be noted that the embodiments of this application do not limit the specific type of vehicle, and the vehicle can be selected according to needs. For example, the vehicle may be a courier sorting vehicle, a regular truck, or a van, etc.

[0055] It should also be noted that the embodiments of this application do not limit the specific application scenarios of the vehicle, and can be selected according to specific needs. In some examples, the vehicle can be used for the delivery of goods such as grains, oils, beverages, and fruits. In other examples, the vehicle can be used for express delivery.

[0056] This application also provides a carriage, and Figure 1 is a partial structural schematic diagram of the carriage.

[0057] Specifically, please refer to Figure 1. The carriage includes a carriage body 20 and a rack 10 disposed within the carriage body 20.

[0058] In this embodiment, by setting up a shelf 10 and placing it inside the carriage body 20, the shelf 10 can make full use of the space inside the carriage body 20 and place goods to meet the transportation needs of the goods. It can be understood that the shelf 10 can be used to place small and medium-sized goods, and the shelf 10 can also be used to place goods in sections.

[0059] It should be noted that this embodiment does not limit the specific number of shelves 10. For example, there are two shelves 10, which are respectively arranged on both sides inside the carriage body 20.

[0060] In some embodiments, please continue to refer to FIG1, the carriage also includes at least one side door 30; the carriage body 20 has at least one first door opening 21, each first door opening 21 is correspondingly arranged with each shelf 10, and each side door 30 is correspondingly arranged in each first door opening 21.

[0061] In this embodiment, by setting at least one side door 30 and at least one first doorway 21, each side door 30 is correspondingly set in each first doorway 21, and the side door 30 can be installed on the carriage body 20. By setting each first doorway 21 corresponding to each shelf 10, when loading and unloading personnel open the side door 30, they can directly see the corresponding shelf 10 and load and unload goods on the shelf 10 from outside the side door 30. Compared with loading and unloading personnel entering the carriage body 20 to load and unload goods, this not only saves loading and unloading time but also reduces the labor intensity of loading and unloading personnel.

[0062] In some other embodiments, please continue to refer to FIG1, the carriage also includes at least one rear door 40; the carriage body 20 has at least one second door opening 22, each second door opening 22 is correspondingly disposed on one side of each first door opening 21, and each rear door 40 is correspondingly disposed in each second door opening 22.

[0063] In this embodiment, by providing at least one rear door 40 and at least one second doorway 22, with each rear door 40 correspondingly located within each second doorway 22, loading and unloading personnel can enter the interior of the carriage body 20 through the second doorway 22 to load and unload goods when the rear door 40 is opened. By correspondingly arranging each second doorway 22 on one side of each first doorway 21, the carriage has multiple entrances for loading and unloading goods, and each entrance does not interfere with the others, thereby improving the efficiency of loading and unloading goods.

[0064] It should be noted that this application embodiment does not specifically limit the flipping method of the side door 30 and the rear door 40, and can be adjusted according to specific needs. For example, both the side door 30 and the rear door 40 can be upward-opening doors or side-flipping doors. In specific implementation, both the side door 30 and the rear door 40 can be rotatably connected to the carriage body 20 via a pivot.

[0065] In some other embodiments (not shown in the figures of this embodiment), the carriage also includes a robotic arm, which is located on top of the carriage body 20 and is used to grab goods on the shelf 10.

[0066] In this embodiment, a robotic arm is installed on the top of the carriage body 20, allowing the robotic arm to move above the interior space of the carriage body 20 to cover the entire shelf 10 area, thereby enabling the grabbing of goods on the shelf 10.

[0067] In practice, the robotic arm has an identification component and a gripping component. The identification component can be used to identify the goods on the shelf 10, and the gripping device can be used to grip the goods identified by the identification component, which facilitates the classification, storage and unloading of the goods.

[0068] By installing a robotic arm, the vehicle compartment is equipped with automated loading and unloading capabilities, eliminating the need for direct manual handling of goods. This not only reduces the labor intensity of loading and unloading personnel but also improves the efficiency of cargo handling. When the vehicle arrives at the loading or delivery point, the robotic arm can identify and grab the goods at the side door 30 or rear door 40 and place them on the shelf 10, or vice versa, based on preset loading or delivery information. The robotic arm is a known structural design in the field of cargo handling and will not be elaborated upon here.

[0069] Furthermore, the carriage may also include guide rails, which are set on the top of the carriage body 20. The robotic arm is slidably connected to the carriage body 20 through the guide rails, thereby enabling the robotic arm to have a wider range of motion.

[0070] Furthermore, the vehicle also includes a controller (not shown in the figure), which is located in the cab and is connected to the robotic arm. The driver can control the movement of the robotic arm from the cab via the controller.

[0071] It should be noted that this application does not limit the specific connection method between the various components of the carriage, as long as a stable connection can be achieved. For example, the fixed connection between the various components can be achieved by welding, screwing, or riveting.

[0072] It is understood that Figure 1 only schematically shows some of the components included in the carriage, and the actual shape, size, location and construction of these components are not limited to Figure 1. The carriage may also include more or fewer components than those in Figure 1.

[0073] The relevant technology involves installing shelves inside the cargo compartment of urban distribution vehicles, which allows for the categorized storage of goods.

[0074] However, in some scenarios, such as when the transportation needs of a vehicle change from small and medium-sized goods to large goods, the shelving occupies a large space, making it difficult to place large goods in the vehicle body.

[0075] To address the aforementioned technical issues, this application provides a shelf 10, and Figure 2 is a structural schematic diagram of the shelf 10 in Figure 1.

[0076] Specifically, referring to Figure 2, the shelf 10 includes: a first shelf 100, which is installed on the side of the carriage body 20 and is located inside the carriage body 20; a second shelf 200, which is installed inside the carriage body 20 and is located on the side of the first shelf 100 away from the side of the carriage body 20; a folding assembly 300, which is connected between the first shelf 100 and the second shelf 200 and is used to carry goods; and a telescopic assembly 400, which is connected between the first shelf 100 and the second shelf 200 and extends or compresses to move the second shelf 200 away from or towards the first shelf 100 and to drive the folding assembly 300 to unfold or fold.

[0077] The shelf 10 provided in this application embodiment has a first frame 100, which is located on the side of the carriage body 20 and inside the carriage body 20. This allows the carriage body 20 to provide a supporting foundation for the entire shelf 10 and ensures that the shelf 10 is not prone to shaking inside the carriage body 20, thereby improving the stability and safety of cargo transportation.

[0078] By setting a second frame 200, which is located inside the carriage body 20 and on the side of the first frame 100 away from the carriage body 20, the second frame 200 and the first frame 100 together form the main frame of the shelf 10.

[0079] By providing a folding assembly 300 connected between the first frame 100 and the second frame 200, the folding assembly 300 can be used to carry goods when it is unfolded.

[0080] By setting up a telescopic component 400, which is connected between the first frame 100 and the second frame 200, the telescopic component 400 can serve as a power source for the movement of the second frame 200, thereby enabling the shelving 10 to be stored and unfolded.

[0081] Specifically, by extending the telescopic component 400, the second frame 200 can move away from the first frame 100, and the folding component 300 can be unfolded, so that there is enough space on the folding component 300 for placing goods.

[0082] By compressing the telescopic component 400, the second frame 200 can move toward the first frame 100, and the folding component 300 can be folded, so that the shelf 10 can be stored in the side of the carriage body 20, thereby reducing the space occupied by the shelf 10 and freeing up more space in the carriage body 20 for placing large goods.

[0083] The preferred technical solution of the shelf 10 of this application embodiment is described below with reference to the accompanying drawings. Figure 3 is a structural schematic diagram of the folding component 300 in Figure 2, Figure 4 is a side view of Figure 3, and Figure 5 is a structural schematic diagram of the connection between the connector 301 and the folding component 302 in Figure 4.

[0084] In some embodiments, referring to Figures 2 and 3, the folding assembly 300 includes: a plurality of connectors 301 arranged at intervals in sequence, one of the two outermost connectors 301 being connected to a first frame 100 and the other being used to connect to a second frame 200; and a plurality of folding members 302, each folding member 302 being connected between two adjacent connectors 301, and the folding members 302 being used to carry goods.

[0085] By setting multiple connectors 301, which are arranged at intervals, the two outermost connectors 301 are connected to the first frame 100 and the second frame 200 respectively. The first frame 100 and the second frame 200 can provide a support base for the folding assembly 300.

[0086] By setting multiple folding parts 302, each folding part 302 is connected between two adjacent connecting parts 301. When the folding part 302 is unfolded, the rigidity of the connecting parts 301 and the folding part 302 allows the folding assembly 300 as a whole to withstand a large vertical load, thereby stably supporting the placed goods. When the folding part 302 is folded, the folding part 302 can be bent and deformed, so that the entire shelf 10 can be stored in the side of the carriage body 20, thereby reducing the space occupied by the shelf 10, so that the carriage body 20 can be used to place large goods.

[0087] In some specific embodiments, please refer to Figures 3 and 4. The folding member 302 includes: a first folding segment 310, one end of which is flexibly connected to one of two adjacent connecting members 301; and a second folding segment 320, one end of which is flexibly connected to the other end of the first folding segment 310, and the other end of which is flexibly connected to the other of the two adjacent connecting members 301.

[0088] By setting a first folding segment 310, one end of which is flexibly connected to one of the two adjacent connectors 301, the first folding segment 310 can rotate within a limited angle relative to the connector 301 while maintaining a firm connection with it. During the folding process of the shelf 10, the first folding segment 310 can change its spatial position according to the changes in the overall structure without causing the structure to jam or be damaged due to rigid connection.

[0089] By setting a second folding section 320, one end of the second folding section 320 is flexibly connected to the other end of the first folding section 310, and the other end of the second folding section 320 is flexibly connected to the other of the two adjacent connectors 301, so that the first folding section 310 can rotate at a limited angle relative to the first folding section 310 or the connector 301 while maintaining a firm connection with the first folding section 310 and the connector 301 respectively, thereby realizing the overall folding of the shelf 10.

[0090] In some examples, at least one of the first folding segment 310 and the second folding segment 320 includes a connecting portion 311 and two bent portions 312 disposed at both ends of the connecting portion 311, wherein the stiffness of the bent portions 312 is less than that of the connecting portion 311.

[0091] At least one of the first folding segment 310 and the second folding segment 320 can be flexibly connected by providing a connecting portion 311 and two bending portions 312. To facilitate understanding of the flexible connection principle, this example uses the first folding segment including the connecting portion 311 and two bending portions 312 as an example:

[0092] Please refer to Figures 3 to 5. The first folding segment 310 is divided into a connecting part 311 and two curved parts 312. The connecting part 311 is located in the middle of the first folding segment 310 and plays a connecting and supporting role, while the two curved parts 312 are located at both ends of the connecting part 311 and are used for flexible connection with the connector 301 and the second folding segment 320, respectively.

[0093] By setting the stiffness of the bending portion 312 to be less than that of the connecting portion 311, the bending portion 312 can achieve good folding function while maintaining a certain load-bearing capacity.

[0094] In practice, the thickness of the bent portion 312 is less than the thickness of the connecting portion 311, or the cross-section of the bent portion 312 is honeycomb-shaped. Both of these methods can make the stiffness of the bent portion 312 less than the stiffness of the connecting portion 311.

[0095] In practical applications, although the stiffness of the bending part 312 is relatively low, it still has sufficient strength to support the goods. At the same time, its low stiffness makes it a key part for folding. Due to its high stiffness, the connecting part 311 can effectively transmit the pressure from the goods to the connecting member 301, and then through the first frame 100 and the second frame 200 to the carriage body 20, so that the carriage body 20 supports the shelf 10 and the goods on the shelf 10.

[0096] In some other specific embodiments, please refer to Figures 3 and 4. Two folding members 302 are connected between two adjacent connectors 301, and the two folding members 302 are arranged symmetrically.

[0097] In this embodiment, by providing two folding members 302 connected between two adjacent connecting members 301, the supporting performance of the folding members 302 can be improved, thereby increasing their load-bearing capacity. Furthermore, the symmetrical arrangement of the two folding members 302 ensures that the entire folding assembly 300 experiences more even stress when carrying goods, thus improving the overall stability of the shelf 10.

[0098] Furthermore, when the two folding members 302 are symmetrically arranged, the two folding members 302 and the two adjacent connecting members 301 together form a hexagonal through hole, which allows the folding assembly 300 to provide support in multiple directions, thereby making the folding assembly 300 less prone to deformation when carrying goods.

[0099] In some other specific embodiments, both the connector 301 and the folding member 302 are made of aluminum or aluminum alloy.

[0100] Aluminum and aluminum alloys have good plasticity and ductility. By setting both the connector 301 and the folding component 302 as aluminum or aluminum alloy parts, the connector 301 and the folding component 302 can be more easily processed into the required shape to realize the support function and folding function of the folding component 300.

[0101] In particular, the curved portion 312 in the folding component 302 needs to have a certain degree of flexibility to achieve the folding function, while maintaining sufficient rigidity to support the goods. By appropriately processing the curved portion 312 (e.g., thinning the curved portion 312, or machining process holes in the curved portion 312), it can obtain different mechanical properties so that the stiffness of the curved portion 312 is less than the stiffness of the connecting portion 311.

[0102] By making both the connector 301 and the folding part 302 aluminum or aluminum alloy parts, the connector 301 and the folding part 302 can maintain good mechanical properties after multiple folding and unfolding operations and are not prone to fatigue fracture.

[0103] In addition, aluminum and aluminum alloys have excellent corrosion resistance. During the carrying or delivery of goods, the shelf 10 may come into contact with various liquids, such as spilled beverages and fruit juices. If these liquids come into contact with ordinary steel for a long time, it will cause the steel to rust and reduce the service life of the shelf 10. However, aluminum or aluminum alloy parts can maintain good corrosion resistance even in such environments, extending the service life of the shelf 10 and reducing maintenance costs.

[0104] In some other embodiments (not shown in the figures of this embodiment), the folding component 300 is a flexible support.

[0105] In this embodiment, by setting the folding component 300 as a flexible support, when the telescopic component 400 extends, the flexible support can unfold under the pull of the second frame 200. When the telescopic component 400 extends a certain length, the first frame 100 and the second frame 200 jointly provide tension to the flexible support. At this time, the flexible support has a certain tension, making it suitable for carrying goods. When the telescopic component 400 retracts, the second frame 200 moves towards the first frame 100, and the second frame 200 can pull the flexible support to move. At this time, the flexible support can bend and fold under the action of gravity.

[0106] It should be noted that the flexible support provided in this embodiment is suitable for scenarios with relatively low cargo weight.

[0107] Furthermore, the flexible support component is made of textile fabric. Textile fabric has good flexibility, which facilitates the storage of the shelf 10; and textile fabric has good tension under tensile force, which can be used to stably support goods.

[0108] In some embodiments, the first frame 100 is used to be screwed, snapped, welded or riveted to at least one of the side wall, bottom wall and top wall of the carriage body 20.

[0109] In practice, the first frame 100 can be connected to the carriage body 20 via threaded connections, clips, or rivets, allowing for detachable connection between the first frame 100 and the carriage body 20, facilitating maintenance of either the rack 10 or the carriage body 20. Furthermore, welding components can be used to weld the first frame 100 to the carriage body 20, resulting in a more secure connection between the two.

[0110] Furthermore, the first frame 100 can be selectively connected to one, two, or all three of the side walls, bottom walls, and top walls of the carriage body 20 simultaneously, which can enhance the stability of the connection between the first frame 100 and the carriage body 20. For example, when the rack 10 needs to support heavy goods, the first frame 100 can be connected to both the side walls and the bottom walls simultaneously to form a more robust support structure; while when the rack 10 is mainly used for light goods, it can be connected only to the side walls to simplify the installation process.

[0111] In other embodiments, the telescopic assembly 400 is a mechanical telescopic rod, an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod.

[0112] When the telescopic component 400 is a mechanical telescopic pole, it can be extended or retracted manually or through a simple mechanical device. Mechanical telescopic poles have a simple structure, low maintenance costs, and are suitable for scenarios with low usage frequency.

[0113] The electric telescopic pole is driven by a motor to extend and retract, making it easy to operate. Simply press a button to unfold or fold the shelf 10. By using an electric telescopic pole, the labor intensity of operators can be reduced and work efficiency improved.

[0114] The hydraulic telescopic rod uses the pressure difference of hydraulic oil to achieve the telescopic action. It has good self-locking performance and can maintain its position even under external force, which can enhance the safety of the rack 10.

[0115] The pneumatic telescopic rod uses compressed air as a power source and is characterized by its light weight and fast response speed, making it suitable for scenarios that require rapid adjustment of the shelf status.

[0116] It should be noted that different telescopic components 400 have different self-locking methods. The telescopic component 400 self-locks after extending or retracting a certain length, which can fix the second frame 200 in the position of carrying goods or store it in the side of the carriage body 20. For example, a mechanical telescopic rod can be equipped with a mechanical locking mechanism; an electric telescopic rod can be self-locked by controlling its motor; a hydraulic telescopic rod can be self-locked by controlling the hydraulic oil volume through a valve; and a pneumatic telescopic rod can be self-locked by controlling the gas volume through a valve.

[0117] It should also be noted that mechanical telescopic poles, electric telescopic poles, hydraulic telescopic poles, or pneumatic telescopic poles are all known structural designs in this field, and will not be elaborated upon here.

[0118] In some other embodiments, see Figure 2, the number of folding components 300 is multiple.

[0119] At least one of the first frame 100 and the second frame 200 includes: a plurality of crossbeams 210 extending along the length direction of the shelf 10 (e.g., the X direction in Figure 2), with each crossbeam 210 spaced apart sequentially along the height direction of the shelf 10 (e.g., the Z direction in Figure 2), the height direction Z of the shelf 10 being perpendicular to the length direction X of the shelf 10; a plurality of longitudinal beams 220 extending along the height direction Z of the shelf 10, with each longitudinal beam 220 spaced apart sequentially along the length direction X of the shelf 10, and the longitudinal beams 220 being connected to the crossbeams 210; at least one of the crossbeams 210 and the longitudinal beams 220 being connected to the telescopic assembly 400; and each folding assembly 300 being correspondingly connected to the crossbeam 210 between each pair of adjacent longitudinal beams 220. It can be understood that the telescopic direction of the telescopic assembly can be the width direction of the shelf 10 (e.g., the Y direction in Figure 2), with the height direction Z, length direction X, and length direction Y of the shelf 10 being perpendicular to each other.

[0120] At least one of the first frame 100 and the second frame 200 can achieve partitioned storage of goods by setting multiple crossbeams 210 and multiple longitudinal beams 220. To facilitate understanding of the partitioned storage principle, this embodiment takes the second frame 200, which includes multiple crossbeams 210 and multiple longitudinal beams 220, as an example for illustration:

[0121] The second frame 200 is equipped with multiple crossbeams 210, which extend along the length of the shelf 10, so that the shelf 10 can provide sufficient load-bearing area; the crossbeams 210 are arranged at intervals along the height of the shelf 10, so that the crossbeams 210 can form a multi-layer structure in the vertical direction, and each layer can be used to place goods.

[0122] Meanwhile, multiple longitudinal beams 220 extend along the height direction of the shelf 10, and each longitudinal beam 220 is arranged at intervals along the length direction of the shelf 10. The longitudinal beams 220 and the cross beams 210 are connected to each other to form a grid-like support structure, which can not only enhance the stability of the entire shelf 10, but also provide more support points for the shelf 10, enabling the shelf 10 to bear greater loads.

[0123] In practical applications, the crossbeam 210 and the longitudinal beam 220 together form the second frame 200. The telescopic end of the telescopic component 400 can be connected to either the crossbeam 210 or the longitudinal beam 220, or simultaneously to either the crossbeam 210 or the longitudinal beam 220. Thus, when the telescopic component 400 extends, the second frame 200 can move away from the first frame 100, causing the folding component 300 to unfold; when the telescopic component 400 compresses, the second frame 200 can move towards the first frame 100, causing the folding component 300 to fold.

[0124] More importantly, each folding component 300 is connected to a crossbeam 210 between two adjacent longitudinal beams 220, ensuring that each grid of the grid-like second frame 200 has an independent folding component 300, thus achieving the function of zoned storage. When different types of goods need to be stored, different areas can be selected for storage according to the characteristics of the goods, thereby improving the flexibility of the shelf 10. For example, light goods can be stored in the upper area and heavy goods in the lower area; or the goods can be divided into zones according to their type, such as a beverage zone, a grain and oil zone, and a fruit zone.

[0125] Further, please refer to Figure 2. The horizontal bar and vertical bar at the bottom together form a clearance 230, which is used to avoid the wheels of a vehicle.

[0126] In this embodiment, to improve the space utilization inside the carriage body 20, the rack 10 can be set around the wheels. To avoid spatial interference between the rack 10 and the vehicle, a clearance opening 230 can be provided on the second frame 200 of the rack 10 so that the second frame 200 can avoid the wheels.

[0127] Because the second frame 200 has a clearance opening 230, when the second frame 200 moves toward or away from the side of the carriage body 20, the wheels will not interfere with the movement of the second frame 200.

[0128] In some embodiments, the bottom of the second frame 200 is used for a rolling or sliding connection with the bottom of the carriage body 20.

[0129] In this embodiment, by rolling or sliding the bottom of the second frame 200 to the bottom of the carriage body 20, not only can the support performance of the carriage body 20 on the shelf 10 be improved, but the stability of the shelf 10 when it is stored or unfolded can also be ensured.

[0130] In some specific embodiments, please continue referring to Figure 2. The shelf 10 also includes a roller assembly 500, which is connected to the bottom of the second frame 200. The second frame 200 is rotatably connected to the carriage body 20 via the roller assembly 500. In a specific implementation, the roller assembly 500 can be connected to the bottom of each longitudinal bar.

[0131] It should be noted that the roller assembly 500 is a structural design known in the art, and will not be described in detail here.

[0132] In some other specific embodiments (not shown in the figures of this embodiment), the shelf 10 also includes a slide rail assembly, and the second frame 200 is connected to the carriage body 20 via the slide rail assembly. In a specific implementation, the slide rail assembly can be a linear guide rail.

[0133] It should be noted that linear guides are a known structural design method in this field, and will not be elaborated upon here.

[0134] It should be understood that the embodiments of this application are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A type of shelf, characterized in that, include: A first frame is used to be installed on the side of the carriage body, and the first frame is located inside the carriage body; A second frame, which is installed inside the carriage body, is located on the side of the first frame away from the carriage body; a folding assembly, which is connected between the first frame and the second frame, and is used to carry goods; A telescopic assembly is connected between the first frame and the second frame. The telescopic assembly extends or compresses to move the second frame away from or toward the first frame, and causes the folding assembly to unfold or fold.

2. The shelf according to claim 1, characterized in that, The folding assembly includes: a plurality of connectors arranged at intervals in sequence, one of the two outermost connectors being connected to the first frame and the other being used to connect to the second frame; and a plurality of folding pieces, each of which is connected between two adjacent connectors, and the folding pieces are used to carry the goods.

3. The shelf according to claim 2, characterized in that, The folding member includes: a first folding segment, one end of which is flexibly connected to one of the two adjacent connecting members; and a second folding segment, one end of which is flexibly connected to the other end of the first folding segment, and the other end of which is flexibly connected to the other of the two adjacent connecting members.

4. The shelf according to claim 3, characterized in that, At least one of the first folded segment and the second folded segment includes a connecting portion and two curved portions, the two curved portions being disposed at both ends of the connecting portion, and the stiffness of the curved portions being less than the stiffness of the connecting portion.

5. The shelving according to any one of claims 1-4, characterized in that, The first frame is used to be screwed, snapped, welded or riveted to at least one of the side wall, bottom wall and top wall of the carriage body.

6. The shelving according to any one of claims 1-4, characterized in that, The telescopic component is a mechanical telescopic rod, an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod.

7. The shelving according to any one of claims 1-4, characterized in that, The number of folding components is multiple; at least one of the first frame and the second frame includes: multiple crossbeams extending along the length direction of the shelf, with each crossbeam spaced apart sequentially along the height direction of the shelf, the height direction of the shelf being perpendicular to the length direction of the shelf; multiple longitudinal beams extending along the height direction of the shelf, with each longitudinal beam spaced apart sequentially along the length direction of the shelf, the longitudinal beams being connected to the crossbeams; at least one of the crossbeams and longitudinal beams is connected to the telescopic component; each folding component is correspondingly connected to the crossbeam between each two adjacent longitudinal beams.

8. The shelving according to any one of claims 1-4, characterized in that, The bottom of the second frame is used for rolling or sliding connection with the bottom of the carriage body.

9. A type of carriage, characterized in that, It includes the carriage body and the rack as described in any one of claims 1-8 disposed within the carriage body.

10. A vehicle, characterized in that, It includes the vehicle body and the carriage as described in claim 9, which is connected to the vehicle body.

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