Cargo containers and unmanned vehicles

Abstract

The present disclosure relates to a vehicle-mounted container and an unmanned vehicle, and belongs to the field of unmanned vehicles. The vehicle-mounted container includes a box body, which is used to accommodate goods and has an assembly position placed on the vehicle body and a separation position separated from the vehicle body; a moving mechanism, including a caster assembly arranged at the bottom of the box body, the caster assembly has a use position and a storage position, in which the caster assembly is extended outward from the bottom of the box body to movably support the box body in the separation position, and in the storage position, the caster assembly is retracted to the bottom of the box body so that the box body is in the assembly position; and a locking assembly, which is used to unlockably lock the caster assembly in the use position. The vehicle-mounted container and unmanned vehicle disclosed in the present disclosure solve the problems in the related art that the vehicle-mounted container is difficult to transport and inconvenient to use when the site is limited.

Description

Technical Field

[0001] The present disclosure relates to the technical field of unmanned vehicles, and in particular, to a vehicle-mounted cargo container and an unmanned vehicle. Background Art

[0002] With the rapid development of science and technology, unmanned vehicles have begun to enter people's vision and gradually replace some traditional cars. In related technologies, unmanned vehicles are applied to the field of cargo transportation. What is needed to match unmanned vehicles is to install containers in the compartment of unmanned vehicles. However, due to the large size of containers, when adding them to unmanned vehicles or unloading them from unmanned vehicles, it is often necessary to use external equipment, such as forklifts, cranes, etc., to facilitate the transfer of containers.

[0003] Among them, peripheral equipment has a strong dependence on the site. However, in reality, not all sites are suitable for installing these peripheral equipment. Therefore, for unmanned vehicles that need to be widely distributed in different environments, due to site restrictions, some peripheral equipment will be difficult or impossible to install. As a result, in an environment without peripheral equipment, the transportation of containers in the unmanned vehicle's compartment is very difficult, which brings inconvenience to the use of the unmanned vehicle. Summary of the invention

[0004] The present disclosure provides a vehicle-mounted container and an unmanned vehicle, which solve the problems in the related art that the vehicle-mounted container is difficult to transport and inconvenient to use when the site is limited.

[0005] In order to achieve the above-mentioned objectives, the present disclosure provides a vehicle-mounted cargo container, comprising a box body, which is used to accommodate cargo and has an assembly position placed on the vehicle body and a separation position separated from the vehicle body; a moving mechanism, comprising a caster assembly arranged at the bottom of the box body, the caster assembly having a use position and a storage position, in which the caster assembly is extended outward from the bottom of the box body to movably support the box body in the separation position, and in the storage position, the caster assembly is retracted to the bottom of the box body so that the box body is in the assembly position; and a locking assembly, which is used to unlockably lock the caster assembly in the use position.

[0006] Optionally, the caster assembly includes a first caster assembly and a second caster assembly. In the use position, the first caster assembly and the second caster assembly are spaced apart along the inner and outer directions of the vehicle body to movably support the box body; during the movement of the box body from the assembly position toward the separation position, the first caster assembly and the second caster assembly gradually enter the use position in sequence.

[0007] Optionally, the first caster assembly located on the outside is constructed as a folding structure and includes a first caster bracket and a first caster installed at the end of the first caster bracket. A first sliding member extending along the inward and outward directions is provided at the bottom of the box body. The first caster bracket is slidably connected to the first sliding member. In the storage position, the first caster bracket is arranged close to the bottom of the box body and the first caster is located on the outside; in the process of moving from the storage position to the use position, the first caster bracket moves outward along the first sliding member and rotates to make the first caster move away from the box body and make the first caster assembly enter the use position.

[0008] Optionally, the first caster bracket includes a sliding rod, two first support rods and a reinforcing rod, the two first support rods are arranged in parallel at both ends of the sliding rod, the reinforcing rod is arranged between the two first support rods, a first sliding groove is opened on the first sliding member along the inward and outward directions, the sliding rod is slidably inserted into the first sliding groove, and the first caster is rotatably arranged at the end of the first support rod away from the sliding rod.

[0009] Optionally, the second caster assembly located on the inner side is constructed as a folding structure and includes a second caster bracket and a second caster. A swivel seat is provided at the bottom of the box, and the second caster bracket is hinged on the swivel seat. A first elastic member for assisting the second caster assembly to enter the use position from the storage position is provided between the second caster bracket and the bottom of the box. In the storage position, the second caster bracket is arranged close to the bottom of the box, and the second caster is located outside the swivel seat and close to the bottom of the box. In the process of moving the box from the assembly position toward the separation position, the second caster bracket gradually rotates to make the second caster gradually move away from the box and make the second caster assembly enter the use position.

[0010] Optionally, the first elastic member is configured as a torsion spring, the second caster bracket is configured as a second support rod, one end of the torsion spring is arranged at the bottom of the box body, the other end of the torsion spring is arranged at an end of the second support rod close to the swivel seat, one end of the second support rod is hinged on the swivel seat, and the other end is rotatably connected to the second caster.

[0011] Optionally, the locking assembly includes a second sliding member movably arranged at the bottom of the box body along the inward and outward directions, and a first locking member and a second locking member arranged on the second sliding member, and the first locking member is used to lock the first caster assembly that first enters the use position by moving along the second sliding member relative to the bottom of the box body, and the second locking member is used to lock the second caster assembly that enters the use position later while the first locking member keeps locking the first caster assembly.

[0012] Optionally, the locking assembly includes a second sliding member movably arranged at the bottom of the box body along the inward and outward directions, and a first locking member and a second locking member spaced apart along the extension direction of the second sliding member. The first caster bracket is provided with a first locking column colinear with its rotation axis, and the second caster bracket is provided with a second locking column colinear with its rotation axis. The outer peripheral surface of the first locking column has at least one first locking surface forming a plane, and the outer peripheral surface of the second locking column has at least one second locking surface forming a plane. A third locking surface for cooperating with the first locking surface is formed on the first locking member, and a fourth locking surface cooperating with the second locking surface is formed on the second locking member.

[0013] In the use position, the first locking surface is rotated to be parallel to the third locking surface, and the second locking surface is rotated to be parallel to the fourth locking surface. Through the movement of the second sliding member relative to the box body, the first locking surface and the third locking surface, and the second locking surface and the fourth locking surface can respectively contact or separate along the inner and outer directions, thereby switching between a locked or unlocked state.

[0014] Optionally, along the inward and outward directions, the length of the third locking surface is greater than the length of the fourth locking surface, so that when the fourth locking surface unlocks the second locking surface, the third locking surface still maintains contact and locking with the first locking surface.

[0015] Optionally, the first locking column is constructed as a triangular prism structure I that is colinear with the rotation axis of the first caster bracket, the triangular prism structure I is vertically arranged on a side of the first caster bracket close to the locking assembly, and a circumferential side surface of the triangular prism structure I forms the third locking surface.

[0016] The second locking column is constructed as a triangular prism structure II that is colinear with the rotation axis of the second caster bracket. The triangular prism structure II is vertically arranged on a side of the second caster bracket close to the locking assembly, and a circumferential side surface of the triangular prism structure II forms the fourth locking surface.

[0017] Optionally, a second elastic member is provided between the second sliding member and the bottom of the box body, the outward movement of the second sliding member is used to unlock the first locking column and the second locking column, and the second elastic member is used to assist the second sliding member to move inward and reset.

[0018] Optionally, the second elastic member is configured as a tension spring, one end of which is arranged on the second sliding member, and the other end of which is arranged on the bottom of the box body.

[0019] Optionally, the second sliding member is provided with a second sliding groove along the inward and outward directions, and the bottom of the box is provided with a sliding block slidably matched with the second sliding groove; the first locking member includes a first connecting plate and a first locking plate, the first connecting plate is arranged at the outer end of the second sliding member and is located on the side of the second sliding member close to the first caster assembly, the first locking plate is protruded on the first connecting plate and is parallel to the bottom of the box, and the side of the first locking plate close to the bottom of the box forms the third locking surface.

[0020] The second locking member includes a second connecting plate and a second locking plate. The second connecting plate is arranged at the inner end of the second sliding member and is located on a side of the second sliding member close to the second caster assembly. The second locking plate protrudes on the second connecting plate and is parallel to the bottom of the box body. The side of the second locking plate close to the bottom of the box body forms the fourth locking surface.

[0021] When the second sliding member moves along the second sliding groove relative to the sliding block, the first locking plate locks or unlocks the first locking column, and the second locking plate locks or unlocks the second locking column, respectively.

[0022] Optionally, there are two sliders, each of which has a proximal end close to the other slider and a distal end away from the other slider, the second sliding member has a rated stroke, and the difference between the distance between the distal ends of the two sliders and the length of the second slide groove is equal to the rated stroke.

[0023] The rated stroke is constructed as the distance the second sliding member moves along the inward and outward directions during a process from when the locking assembly simultaneously locks the first caster assembly and the second caster assembly to when the locking assembly simultaneously unlocks the first caster assembly and the second caster assembly.

[0024] The present disclosure also provides an unmanned vehicle, comprising a vehicle body and the aforementioned vehicle-mounted cargo container.

[0025] Optionally, a compartment is provided on the vehicle body, the compartment has a side door, the box body has a cabinet door, and in the assembly position, the vehicle-mounted cargo container is placed in the compartment, and the cabinet door is arranged toward the side door.

[0026] Optionally, in the assembly position, the box is detachably mounted on the side wall of the compartment by fasteners.

[0027] Compared with the related art, the present invention has the following advantages:

[0028] By providing a box body, a moving mechanism and a locking assembly, the assembly position of the box body placed on the vehicle body and the separation position separated from the vehicle body can correspond one-to-one to the working states of the caster assembly of the moving mechanism in the storage position and the use position, and the locking assembly can unlock the caster assembly in the use position, so as to achieve the purpose of allowing the vehicle-mounted container to move on its own after being separated from the vehicle body, and further achieve the purpose of convenient transportation of the vehicle-mounted container when the space is limited.

[0029] In addition, other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0031] Figure 1 is a schematic diagram of the initial state of the vehicle-mounted cargo container of the present disclosure, wherein the first caster assembly and the second caster assembly are both in a folded state;

[0032] Figure 2 is a schematic diagram of an intermediate process of the vehicle-mounted cargo container disclosed herein, wherein the first caster assembly is in a horizontally pulled-out state and the second caster assembly is in a folded state;

[0033] Figure 3 is a schematic diagram of an intermediate process of the vehicle-mounted cargo container disclosed herein, wherein the first caster assembly is in an open state and the second caster assembly is in a folded state;

[0034] Figure 4 is a schematic diagram of the final state of the vehicle-mounted cargo container of the present disclosure, wherein the first caster assembly and the second caster assembly are both in an open state;

[0035] Figure 5 yes Figure 4 A schematic diagram of the structure of the bottom of the middle box, wherein a portion of the locking assembly structure is omitted in order to show the slider;

[0036] Figure 6 is a schematic structural diagram of a first caster assembly disclosed in the present invention;

[0037] Figure 7 is a schematic structural diagram of a second caster assembly disclosed in the present invention;

[0038] Figure 8 is a schematic structural diagram of a locking assembly disclosed herein;

[0039] Fig. 9 yes Figure 8 A top view of Fig.10 yes Figure 2 A partial enlarged view of the middle A;

[0040] Fig.11 yes Figure 2 A partial enlarged view of point B in the middle; Fig.12 yes Figure 4 A partial enlarged view of point C in the middle;

[0041] Fig.13 yes Figure 4 A partial enlarged view of point D in the middle; Fig.14 yes Figure 5 A partial enlarged view of point E in the middle;

[0042] Fig.15 yes Figure 6 A partial enlarged view of point F in the middle; Fig.16 yes Figure 6 A partial enlarged view of the G in the middle;

[0043] Fig.17 yes Figure 7 A partial enlarged view of the H in the middle; Fig.18 yes Figure 7 A partial enlarged view of point I in the middle;

[0044] Fig.19 yes Figure 8 A partial enlarged view of the J in the middle; Fig. 20 yes Figure 8 A partial enlarged view of the K in the middle;

[0045] Fig.21 is a schematic diagram of a locking state between a first locking member and a first locking column in the present disclosure;

[0046] Fig. 22 is a schematic diagram of a locking state between a second locking member and a second locking column in the present disclosure;

[0047] Fig.23 It is a schematic diagram of the structure of the unmanned vehicle disclosed in the present invention, wherein the unmanned vehicle is loaded with the vehicle-mounted cargo container disclosed in the present invention.

[0048] Description of Reference Numerals

[0049] 1-cargo container; 11-box body; 111-bottom of box body; 112-cabinet door;

[0050] 1111-first sliding member; 11111-first sliding groove; 1112-rotating seat; 1113-first elastic member; 11131-torsion spring;

[0051] 1114- second elastic member; 11141- tension spring; 1115- slider; 11151- proximal end; 11152- distal end;

[0052] 12-moving mechanism; 121-castor assembly; 1211-first castor assembly;

[0053] 12111-first caster bracket; 12112-first caster; 12113-first locking column;

[0054] 12111a-sliding rod; 12111b-first supporting rod; 12111c-reinforcing rod; 12113a-first locking surface;

[0055] 1212-second caster assembly; 12121-second caster bracket; 12122-second caster; 12123-second locking column;

[0056] 12121a-second support rod; 12123a-second locking surface;

[0057] 13-locking assembly; 131-second sliding member; 1311-second sliding groove;

[0058] 132-first locking member; 132a-third locking surface; 1321-first connecting plate; 1322-first locking plate;

[0059] 133-second locking member; 133a-fourth locking surface; 1331-second connecting plate; 1332-second locking plate;

[0060] 2-car body; 21-carriage compartment; 211-side door. DETAILED DESCRIPTION

[0061] The specific embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. Among them, the inside-outside direction refers to the direction of the box body 11 perpendicular to the side door 211 when the box body 11 is placed from the side door 211 of the compartment 21 and the cabinet door 112 of the box body 11 faces the side door 211. The outside refers to the side of the box body 11 close to the side door 211 when the box body 11 is in the assembly position, that is, when the box body 11 is placed in the compartment 21 of the vehicle body 2, and the inside refers to the side of the box body 11 away from the side door 211 when the box body 11 is placed in the compartment 21 of the vehicle body 2. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0062] Reference Figures 1 to 4 As shown, on the one hand, the present disclosure provides a vehicle-mounted cargo container 1, including a box body 11, which is used to accommodate cargo and has an assembly position placed on a vehicle body 2 and a separation position separated from the vehicle body 2; a moving mechanism 12, including a caster assembly 121 arranged at the bottom 111 of the box body, the caster assembly 121 having a use position and a storage position, in the use position, the caster assembly 121 is extended outward from the bottom 111 of the box body to movably support the box body 11 in the separation position, and in the storage position, the caster assembly 121 is retracted to the bottom 111 of the box body so that the box body 11 is in the assembly position; and a locking assembly 13, which is used to unlock the caster assembly 121 in the use position.

[0063] It should be noted that, in this embodiment, the caster assembly 121 of the moving mechanism 12 is arranged at the bottom 111 of the box body. On the one hand, its function is to support the box body 11 after the box body 11 of the vehicle-mounted container 1 is separated from the vehicle body 2. On the other hand, after the box body 11 is separated from the vehicle body 2, the caster assembly 121 can be used to move the box body 11 to achieve self-driving. The reason why the caster assembly 121 needs to have a use position and a storage position is mainly to enable the caster assembly 121 in the box body 11 to make corresponding changes when the box body 11 is placed on the vehicle body 2 or separated from the vehicle body 2, so as to facilitate the storage or movement of the box body 11. Specifically, when the caster assembly 121 is in the storage position, the caster assembly 121 is retracted to the bottom 111 of the box body, so that the box body 11 can be stably and reliably placed on the vehicle body 2, and at the same time, it can also reduce the space occupied by the box body 11 on the vehicle body 2. When the caster assembly 121 is in the use position, the caster assembly 121 is extended outward from the bottom 111 of the box body, and the caster assembly 121 can support the box body 11 and move the box body 11 on the ground to achieve self-propelled movement.

[0064] The main function of the locking assembly 13 is to unlock the caster assembly 121 in the use position to prevent the caster assembly 121 from folding and affecting the movement of the box 11 when the box 11 is moved in the display state. At the same time, by setting the locking of the caster assembly 121 by the locking assembly 13 to an unlockable lock, the caster assembly 121 can be unlocked to enable the caster assembly 121 to be transformed from the use position to the storage position when the box 11 is transformed from the separation position to the assembly position.

[0065] Therefore, the vehicle-mounted container 1 can be moved by the caster assembly 121 after being separated from the box body 11, so as to achieve self-driving, thereby achieving the purpose of convenient transportation of the vehicle-mounted container 1 when the space is limited.

[0066] Reference Figures 1 to 4 As shown, as a possible implementation, the caster assembly 121 includes a first caster assembly 1211 and a second caster assembly 1212. In the use position, the first caster assembly 1211 and the second caster assembly 1212 are spaced apart along the inner and outer directions of the vehicle body 2 to movably support the box body 11; in the process of the box body 11 moving from the assembly position toward the separation position, the first caster assembly 1211 and the second caster assembly 1212 gradually enter the use position in sequence.

[0067] It should be noted that, in this embodiment, the first caster assembly 1211 and the second caster assembly 1212 are arranged at intervals along the inner and outer directions of the vehicle body 2, mainly to enable the caster assemblies 121 to be evenly arranged at the bottom 111 of the box body, so that the weight of the box body 11 and the goods in the box body 11 can be evenly distributed on the two caster assemblies 121, which can not only achieve convenient use, but also increase the service life of the caster assemblies 121. Here, enabling the first caster assembly 1211 and the second caster assembly 1212 to movably support the box body 11 includes two meanings. On the one hand, it means that the two caster assemblies 121 can support the box body 11, and on the other hand, the two caster assemblies 121 also have the function of enabling the box body 11 to move.

[0068] In addition, since the side of the box 11 close to the lateral door 211 is separated from the body 2 first during the separation of the box 11 and the body 2, the caster assembly 121 arranged on this side of the box 11, that is, the first caster assembly 1211 needs to first enter the use position, so as to first support the part of the box 11 that is separated from the body 2, maintain the balance of the box 11 during the separation process, and prevent the box 11 from tipping over. Afterwards, as the box 11 continues to move toward the lateral door 211, the remaining part of the box 11 is gradually separated from the body 2. At this time, the second caster assembly 1212 is gradually opened and transitioned to the use position. Finally, the box 11 can be completely removed from the body 2. In this process, the locking assembly 13 needs to be used to lock and unlock the first caster assembly 1211, and the content of this part will be described in detail in other parts.

[0069] Reference Figures 1 to 4 , Figure 6 as well as Fig.15 As shown, as a possible implementation method, the first caster assembly 1211 located on the outside is constructed as a folding structure and includes a first caster bracket 12111 and a first caster 12112 installed at the end of the first caster bracket 12111, and the bottom 111 of the box body is provided with a first sliding member 1111 extending along the inward and outward directions. The first caster bracket 12111 is slidably connected to the first sliding member 1111, and in the storage position, the first caster bracket 12111 is arranged close to the bottom 111 of the box body and the first caster 12112 is located on the outside; in the process of moving from the storage position to the use position, the first caster bracket 12111 moves outward along the first sliding member 1111 and rotates to make the first caster 12112 move away from the box body 11, and make the first caster assembly 12111 enter the use position.

[0070] It should be noted that, in this embodiment, the first caster assembly 1211 is configured as a folding structure, which means that when the box body 11 is switched from the assembly position to the separation position, the first caster assembly 1211 can be switched from the storage position to the use position, that is, the first caster assembly 1211 can be switched from the folded state close to the bottom 111 of the box body to the open state in which the first caster 12112 is away from the box body 11. The first caster bracket 12111 is used to cooperate with the first sliding member 1111 to complete the folding and opening actions of the first caster assembly 1211, and when the first caster assembly 1211 is in the open state, it supports the box body 11, and the first caster 12112 installed at the end of the first caster bracket 12111 is used to realize the flexible movement of the box body 11 when the first caster assembly 1211 is in the open state.

[0071] Here, the first caster bracket 12111 is slidably connected to the first sliding member 1111 arranged at the bottom 111 of the box body to realize the folding and opening action of the first caster assembly 1211 when switching from the storage position to the use position. During this process, the first caster bracket 12111 is firstly pulled out horizontally from the bottom 111 of the box body along the first sliding member 1111, and then the first caster assembly 1211 is unlocked by the locking assembly 13 so that the first caster bracket 12111 can be rotated to the exhibition position, and then the first caster 12112 is locked by the locking assembly 13. At this time, the first caster 12112 arranged at the end of the first caster bracket 12111 is away from the box body 11, and at the same time, the first caster assembly 1211 enters the use position and is locked.

[0072] Reference Figure 6 and Fig.11 As shown, as a possible implementation method, the first caster bracket 12111 includes a sliding rod 12111a, two first support rods 12111b and a reinforcing rod 12111c. The two first support rods 12111b are arranged in parallel at both ends of the sliding rod 12111a, and the reinforcing rod 12111c is arranged between the two first support rods 12111b. A first sliding groove 11111 is opened on the first sliding member 1111 along the inward and outward directions. The sliding rod 12111a is slidably inserted into the first sliding groove 11111, and the first caster 12112 is rotatably arranged at the end of the first support rod 12111b away from the sliding rod 12111a.

[0073] It should be noted that, in this embodiment, the slide bar 12111a is a slender bar, and its cross-sectional shape can be circular, square or other polygonal. The cross-sectional shape of the slide bar 12111a is not limited in this embodiment, as long as it can achieve reliable sliding connection with the first slide groove 11111. There are two first slide grooves 11111, which are symmetrically arranged at the bottom 111 of the box body along the inner and outer directions, and the two ends of the slide bar 12111a are respectively slidably penetrated in the two first slide grooves 11111. Here, the shape of the first slide groove 11111 is adapted to the cross-sectional shape of the slide bar 12111a, so that the slide bar 12111a can slide back and forth in the first slide groove 11111. The two first support rods 12111b are arranged at the two ends of the slide bar 12111a and support the box body 11. The reinforcing rod 12111c is used to improve the structural strength of the first caster bracket 12111 and extend the service life of the first caster bracket 12111.

[0074] When in use, the caster assembly 121 can be switched from the storage position to the use position by slidingly cooperating between the slide bar 12111a and the first slide groove 11111 in the first slide member 1111. Specifically, the slide bar 12111a is first pulled out horizontally from the bottom 111 of the box along the first slide groove 11111, and then the slide bar 12111a is rotated 90 degrees relative to the bottom 111 of the box until the two first support rods 12111b at both ends of the slide bar 12111a are perpendicular to the bottom 111 of the box and support it.

[0075] Reference Figures 1 to 4 , Figure 7 , Fig.10 as well as Fig.17 As shown, as a possible implementation method, the second caster assembly 1212 located on the inner side is constructed as a folding structure and includes a second caster bracket 12121 and a second caster 12122. A swivel seat 1112 is provided at the bottom 111 of the box body. The second caster bracket 12121 is hinged on the swivel seat 1112, and a first elastic member 1113 for assisting the second caster assembly 1212 to enter from the storage position to the use position is provided between the second caster bracket 12121 and the bottom 111 of the box body. In the storage position, the second caster bracket 12121 is arranged close to the bottom 111 of the box body, and the second caster 12122 is located on the outside of the swivel seat 1112 and close to the bottom 111 of the box body. In the process of moving the box body 11 from the assembly position to the separation position, the second caster bracket 12121 gradually rotates to make the second caster 12122 gradually move away from the box body 11, and make the second caster assembly 1212 enter the use position.

[0076] It should be noted that, in the present embodiment, the second caster assembly 1212 is configured as a folding structure, which means that when the box body 11 is switched from the assembly position to the separation position, the second caster assembly 1212 can be switched from the storage position to the use position, that is, the second caster assembly 1212 can be switched from the folded state close to the bottom 111 of the box body to the open state where the second caster 12122 is away from the box body 11. Among them, the second caster bracket 12121 is switched from the storage position to the use position by being hinged with the swivel 1112 provided at the bottom 111 of the box body. The second caster bracket 12121 is used to support the box body 11 when the box body 11 is in the separation position and the caster assembly 121 is in the use position, and at this time, the second caster 12122 cooperates with the first caster 12112 to realize the movement of the box body 11.

[0077] Here, the first elastic member 1113 is arranged on the second caster bracket 12121 and the bottom 111 of the box body mainly to assist the second caster assembly 1212 in quickly entering the use position during the transition of the second caster assembly 1212 from the folded position to the use position, so as to avoid the situation in which the second caster assembly 1212 is difficult to quickly enter the use position when its own gravity is insufficient during the opening process.

[0078] In addition, in the storage position, the second caster bracket 12121 is arranged close to the bottom 111 of the box body, and the second caster 12122 is located outside the swivel seat 1112 and close to the bottom 111 of the box body. The second caster 12122 is located outside the swivel seat 1112 and close to the bottom 111 of the box body mainly because when the second caster assembly 1212 is in the storage position, it can occupy as little storage space as possible.

[0079] Reference Figures 1 to 4 , Figure 7 , Fig.10 as well as Fig.17 As shown, as a possible implementation method, the first elastic member 1113 is constructed as a torsion spring 11131, the second caster bracket 12121 is constructed as a second support rod 12121a, one end of the torsion spring 11131 is arranged at the bottom 111 of the box body, and the other end of the torsion spring 11131 is arranged at one end of the second support rod 12121a close to the swivel seat 1112, one end of the second support rod 12121a is hinged on the swivel seat 1112, and the other end is rotatably connected to the second caster 12122.

[0080] It should be noted that, in this embodiment, one end of the torsion spring 11131 is fixed to the bottom 111 of the box body, and the other end is fixed to the second caster bracket 12121. When the box body 11 is separated from the vehicle body 2, the first caster assembly 1211 first enters the use position, and then the second caster assembly 1212 gradually enters the use position. In the process of the second caster assembly 1212 gradually entering the use position, since the box body 11 is gradually separated from the vehicle body 2, the second caster assembly 1212 begins to gradually fall from one end close to the second caster 12122 under the action of its own gravity. In this process, in order to avoid the situation that the second caster assembly 1212 is difficult to quickly enter the use position due to insufficient self-gravity, a first elastic member 1113, that is, a torsion spring 11131, is added between the bottom 111 of the box body and the second caster bracket 12121. With the assistance of the stretching action of the torsion spring 11131, the second caster assembly 1212 can quickly and smoothly enter the use position.

[0081] Reference Figures 1 to 4 as well as Figure 8As shown, as a possible implementation method, the locking assembly 13 includes a second sliding member 131 movably arranged in the inward and outward directions at the bottom 111 of the box body, and a first locking member 132 and a second locking member 133 arranged on the second sliding member 131. By moving along the second sliding member 131 relative to the bottom 111 of the box body, the first locking member 132 is used to lock the first caster assembly 1211 that first enters the use position, and the second locking member 133 is used to lock the second caster assembly 1212 that enters the use position later while the first locking member 132 keeps the first caster assembly 1211 locked.

[0082] It should be noted that, in the present embodiment, the locking assembly 13 switches the first caster assembly 1211 and the second caster assembly 1212 between locking and unlocking by moving the second sliding member 131 relative to the bottom 111 of the box body. Specifically, the first locking member 132 is used to lock the first caster assembly 1211 that enters the use position first, and the second locking member 133 is used to lock the second caster assembly 1212 that enters the use position later. Here, the first locking member 132 needs to satisfy the condition that the first locking member 132 locks the first caster assembly 1211, and in the process from the first caster assembly 1211 being in the use position to the second caster assembly 1212 entering the use position, the first locking member 132 needs to always keep the first caster assembly 1211 locked, so that the first caster assembly 1211 can always be reliably kept in the use position during this process.

[0083] Reference Figures 6 to 8 , Fig.16 as well as Figures 18 to 22 As shown, as a possible implementation, the locking assembly 13 includes a second sliding member 131 movably arranged in the inward and outward directions at the bottom 111 of the box body, and a first locking member 132 and a second locking member 133 spaced apart along the extension direction of the second sliding member 131; a first locking column 12113 colinear with its rotation axis is arranged on the first caster bracket 12111; a second locking column 12123 colinear with its rotation axis is arranged on the second caster bracket 12121; an outer peripheral surface of the first locking column 12113 has at least one first locking surface 12113a forming a plane; an outer peripheral surface of the second locking column 12123 has at least one second locking surface 12123a forming a plane; a third locking surface 132a for cooperating with the first locking surface 12113a is formed on the first locking member 132; and a fourth locking surface 133a cooperating with the second locking surface 12123a is formed on the second locking member 133.

[0084] In the use position, the first locking surface 12113a rotates to be parallel to the third locking surface 132a, and the second locking surface 12123a rotates to be parallel to the fourth locking surface 133a. Through the movement of the second sliding member 131 relative to the box body 11, the first locking surface 12113a and the third locking surface 132a, and the second locking surface 12123a and the fourth locking surface 133a can respectively contact or separate in the inner and outer directions, thereby switching between the locked or unlocked states.

[0085] It should be noted that, in this embodiment, the locking assembly 13 locks the first caster assembly 1211 in the use position through the first locking member 132, and the locking assembly 13 locks the second caster assembly 1212 in the use position through the second locking member 133. The locking principle of the locking assembly 13 for the first caster assembly 1211 and the second caster assembly 1212 is to achieve contact locking by mutual contact between surfaces. Specifically, when the first caster assembly 1211 enters the use position, the first caster bracket 12111 drives the first locking column 12113 colinear with its rotation axis to rotate from a horizontal state to a vertical state. At this time, the first locking surface 12113a on the first locking column 12113 also rotates 90°. When the first caster assembly 1211 enters the use position, the first locking surface 12113a on the first locking column 12113 and the third locking surface 132a on the first locking member 132 are in surface contact. At this time, the first locking member 132 in the locking assembly 13 can achieve contact locking of the first caster assembly 1211. Here, the locking process of the second caster assembly 1212 is similar to the locking process of the first caster assembly 1211, and can refer to the locking process of the first caster assembly 1211, which will not be repeated in this embodiment.

[0086] In addition, during the process of the second sliding member 131 moving inward and outward directions relative to the box body 11, the second sliding member 131 drives the first locking member 132 and the second locking member 133 to move accordingly, so that the third locking surface 132a on the first locking member 132 can come into surface-to-surface contact with the first locking surface 12113a on the first locking column 12113 or separate from each other. At the same time, the fourth locking surface 133a on the second locking member 133 can come into surface-to-surface contact with the second locking surface 12123a on the second locking column 12123 or separate from each other, thereby realizing the switching of the first caster assembly 1211 and the second caster assembly 1212 between the locked and unlocked states.

[0087] In addition, the number of first locking surfaces 12113a that can be formed on the outer peripheral surface of the first locking column 12113 can be one or more, and the present embodiment is not limited thereto and can be flexibly set according to actual use needs. However, it should be noted that the first locking surface 12113a here must be a plane, and the setting position of the plane must meet the requirement that when the first caster assembly 1211 enters the use position, the plane rotates synchronously with the first caster assembly 1211 to the locking position and forms a surface-to-surface contact with the first locking surface 12113a on the first locking member 132. The setting method of the second locking surface 12123a on the second locking column 12123 is similar to the setting method of the first locking surface 12113a on the first locking column 12113, and the present embodiment will not be repeated here.

[0088] Reference Fig. 9 As shown, as a possible implementation method, along the inward and outward directions, the length of the third locking surface 132a is greater than the length of the fourth locking surface 133a, so that when the fourth locking surface 133a unlocks the second locking surface 12123a, the third locking surface 132a still remains in contact with the first locking surface 12113a and locked.

[0089] It should be noted that in this embodiment, the length of the third locking surface 132a (refer to Fig. 9 , the length of the third locking surface 132a is represented by the letter a) is greater than the length of the fourth locking surface 133a (refer to Fig. 9 , letter b is used to represent the length of the fourth locking surface 133a), the purpose of which is mainly to enable the third locking surface 132a to still maintain contact locking with the first locking surface 12113a when the fourth locking surface 133a unlocks the second locking surface 12123a. Specifically, when the first caster assembly 1211 is in the use position and the second caster assembly 1212 enters the use position from the storage position, the third locking surface 132a on the first locking member 132 needs to always maintain contact locking with the first locking surface 12113a on the first locking column 12113, so that the first caster assembly 1211 can always be reliably maintained in the use position until the second caster assembly 1212 enters the use position, at which time, not only the third locking surface 132a contacts and locks the first locking surface 12113a, but also the fourth locking surface 133a contacts and locks the second locking surface 12123a.

[0090] Reference Figure 6 to Figure 7 as well as Figure 12 to Figure 13As shown, as a possible implementation, the first locking column 12113 is constructed as a triangular prism structure I that is colinear with the rotation axis of the first caster bracket 12111, the triangular prism structure I is vertically arranged on one side of the first caster bracket 12111 close to the locking assembly 13, and a circumferential side surface of the triangular prism structure I is formed as a third locking surface 132a.

[0091] The second locking column 12123 is constructed as a triangular prism structure II that is colinear with the rotation axis of the second caster bracket 12121. The triangular prism structure II is vertically arranged on a side of the second caster bracket 12121 close to the locking assembly 13, and a circumferential side surface of the triangular prism structure II forms a fourth locking surface 133a.

[0092] It should be noted that, in this embodiment, the first locking column 12113 and the second locking column 12123 can be a triangular prism structure, or a cubic structure, a semi-cylindrical structure, a U-arc column structure, etc. This embodiment is not limited to this, and the specific invention object of the present disclosure shall prevail. Here, the triangular prism structure I is vertically arranged on the side of the first caster bracket 12111 close to the locking assembly 13, which means that the bottom surface or top surface of the triangular prism structure I is in contact with the first caster bracket 12111, and one of the three side surfaces of its periphery is formed as a third locking surface 132a, so that when the first caster assembly 1211 enters the use position, this side surface on the triangular prism structure I locks the first caster assembly 1211. Similarly, the arrangement of the triangular prism structure II on the second caster bracket 12121 and the working mode of the triangular prism structure II are similar to those of the triangular prism structure I, and this embodiment will not be repeated here.

[0093] Reference Figure 4 and Fig.13 As shown, as a possible implementation method, a second elastic member 1114 is arranged between the second sliding member 131 and the bottom 111 of the box body, and the operation of the second sliding member 131 moving outward is used to unlock the first locking column 12113 and the second locking column 12123, and the second elastic member 1114 is used to assist the second sliding member 131 to move inward and reset.

[0094] It should be noted that, in the present embodiment, the second elastic member 1114 is provided, on the one hand, so that the second sliding member 131 in the locking assembly 13 can provide a force to assist the second sliding member 131 in returning to its initial position during its outward movement; on the other hand, the provision of the second elastic member 1114 can also enable the first locking member 132 in the locking assembly 13 to maintain a reliable locking of the first caster assembly 1211, and the second locking member 133 to maintain a reliable locking of the second caster assembly 1212.

[0095] Reference Figure 4 and Fig.13As shown, as a possible implementation, the second elastic member 1114 is constructed as a tension spring 11141 , one end of the tension spring 11141 is arranged on the second sliding member 131 , and the other end is arranged on the bottom 111 of the box body.

[0096] It should be noted that, in this embodiment, the tension spring 11141 refers to a stretch spring, also called a tension spring, or simply the tension spring 11141, which is a coil spring that bears axial tension. By fixing the tension spring 11141 between the bottom 111 of the box body and the second sliding member 131, the tension spring 11141 can provide the locking assembly 13 with a force to return to its initial position, and can also assist the locking assembly 13 in reliably locking the caster assembly 121.

[0097] Reference Figure 5 , Figure 8 , Fig.12 , Fig.13 , Fig.19 as well as Fig. 20 As shown, as a possible implementation method, a second sliding groove 1311 is provided on the second sliding member 131 along the inward and outward directions, and a sliding block 1115 that slides with the second sliding groove 1311 is provided at the bottom 111 of the box body; the first locking member 132 includes a first connecting plate 1321 and a first locking plate 1322, the first connecting plate 1321 is arranged at the outer end of the second sliding member 131, and is located on the side of the second sliding member 131 close to the first caster assembly 1211, the first locking plate 1322 is protruded on the first connecting plate 1321 and is parallel to the bottom 111 of the box body, and the side of the first locking plate 1322 close to the bottom 111 of the box body is formed as a third locking surface 132a.

[0098] The second locking member 133 includes a second connecting plate 1331 and a second locking plate 1332. The second connecting plate 1331 is arranged at the inner end of the second sliding member 131 and is located on the side of the second sliding member 131 close to the second caster assembly 1212. The second locking plate 1332 is protruded on the second connecting plate 1331 and is parallel to the bottom 111 of the box body. The side of the second locking plate 1332 close to the bottom 111 of the box body is formed as a fourth locking surface 133a.

[0099] When the second sliding member 131 moves along the second sliding groove 1311 relative to the sliding block 1115 , the first locking plate 1322 locks or unlocks the first locking column 12113 , and the second locking plate 1332 locks or unlocks the second locking column 12123 , respectively.

[0100] It should be noted that, in this embodiment, the second slide 1311 and the slider 1115 of the bottom 111 of the box body move relative to each other in the inner and outer directions to move the second slide 1311 relative to the box body 11. The second slide 131 may be a hollow rectangular shell structure, the second slide 1311 may be an elongated groove provided on the rectangular shell structure, and the slider 1115 may be a cubic structure, and a convex ridge is provided on one side of the cubic structure close to the bottom surface of the box body 11, through which the cubic structure in the slider 1115 can be installed in the hollow rectangular shell structure of the second slide 131, and the convex ridge in the slider 1115 extends from the elongated groove and is fixed to the bottom surface of the box body 11, thereby realizing the movement of the second slide 131 relative to the bottom surface of the box body 11. In actual use, the structures of the second slide 131, the second slide 1311 and the slider 1115 are not limited to those listed in this embodiment, and may also be other structures that can achieve the same function, which is not limited in this embodiment.

[0101] In addition, the first connecting plate 1321, the first locking plate 1322, the second connecting plate 1331 and the second locking plate 1332 are all flat plate structures, wherein the first connecting plate 1321 is arranged at the outer end of the second sliding member 131 and is close to the first caster assembly 1211, and the first locking plate 1322 is protrudingly arranged on the first connecting plate 1321 and is parallel to the bottom 111 of the box body, and its purpose is mainly to enable the first locking plate 1322 to reliably lock the first caster assembly 1211 when the first caster assembly 1211 is in the use position. Specifically, one side of the first locking plate 1322 close to the bottom 111 of the box body is formed as a third locking surface 132a, and the third locking surface 132a is used to lock the first locking surface 12113a of the first locking column 12113 in the first caster assembly 1211. Here, the connection mode and working mode of the second connecting plate 1331 and the second locking plate 1332 are similar to the connection mode and working mode of the first connecting plate 1321 and the first locking plate 1322, and will not be repeated in this embodiment.

[0102] Reference Figure 5 , Fig. 9 as well as Fig.14 As shown in the figure, as a possible implementation, there are two sliders 1115, each slider 1115 has a proximal end 11151 close to the other slider 1115 and a distal end 11152 away from the other slider 1115, the second sliding member 131 has a rated stroke, and the distance between the distal ends 11152 of the two sliders 1115 (refer to Figure 5 , the letter d is used to represent the distance between the distal ends 11152 of the two sliders 1115) and the length of the second slide groove 1311 (refer to Fig. 9, the letter c is used to represent the length of the second slide groove 1311) and the difference between them is equal to the rated stroke.

[0103] The rated stroke is constructed as the distance the second sliding member 131 moves in the inward and outward directions during the process from when the locking assembly 13 simultaneously locks and moves the first caster assembly 1211 and the second caster assembly 1212 to when the locking assembly 13 simultaneously unlocks the first caster assembly 1211 and the second caster assembly 1212.

[0104] It should be noted that, in this embodiment, the length of the second slide groove 1311 is greater than the distance between the distal ends 11152 of the two sliders 1115. This arrangement is mainly to enable the second slider 131 to slide relative to the slider 1115 of the bottom 111 of the box body through the second slide groove 1311, so as to achieve the locking or unlocking of the first caster assembly 1211 and the second caster assembly 1212 by the locking assembly 13. Specifically, the difference between the distance between the distal ends 11152 of the two sliders 1115 and the length of the second slide groove 1311 is the maximum distance that the second slider 131 can slide relative to the bottom 111 of the box body in the inward and outward direction, that is, the rated stroke of the second slider 131. The rated stroke refers to the distance that the second slider 131 moves in the inward and outward direction during the process from the locking assembly 13 locking the first caster assembly 1211 and the second caster assembly 1212 to the locking assembly 13 unlocking the first caster assembly 1211 and the second caster assembly 1212 at the same time.

[0105] On the other hand, referring to Fig.23 As shown, the present disclosure also provides an unmanned vehicle, including a vehicle body 2 and the aforementioned vehicle-mounted cargo container 1.

[0106] It should be noted that, in the present embodiment, the unmanned vehicle adopts the existing technology, and the vehicle-mounted container 1 is the vehicle-mounted container 1 described in the aforementioned embodiment. When the vehicle-mounted container 1 is placed in the unmanned vehicle, the box body 11 of the vehicle-mounted container 1 is in the assembly position, and the caster assembly 121 is in the storage position. When the vehicle-mounted container 1 is taken out of the unmanned vehicle, the box body 11 of the vehicle-mounted container 1 is in the separation position, and the caster assembly 121 is in the use position. At this time, the locking assembly 13 locks the caster assembly 121, thereby facilitating the flexible movement of the vehicle-mounted container 1 through the caster assembly 121 set at the bottom 111 of the box body. In this way, the purpose of convenient transportation of the vehicle-mounted container 1 can be achieved even when the site is limited.

[0107] Reference Fig.23 As shown, as a possible implementation method, a compartment 21 is provided on the vehicle body 2, the compartment 21 has a side door 211, and the box body 11 has a cabinet door 112. In the assembly position, the vehicle cargo container 1 is placed in the compartment 21, and the cabinet door 112 is arranged toward the side door 211.

[0108] It should be noted that, in the present embodiment, a carriage 21 is provided on the body 2 of the unmanned vehicle, and a side door 211 is provided on the left or right side of the carriage 21. The vehicle-mounted container 1 is placed in the carriage 21 through the position of the side door 211. Since a cabinet door 112 is provided on one side of the box body 11 of the vehicle-mounted container 1, when the vehicle-mounted container 1 is placed in the carriage 21, the cabinet door 112 needs to be placed facing the side door 211 of the carriage 21. The purpose of such a setting is that when the vehicle-mounted container 1 needs to be removed from the unmanned vehicle, the caster assembly 121 and the locking assembly 13 can move in sequence according to a preset path, thereby ensuring that the box body 11 of the vehicle-mounted container 1 can smoothly transition from the assembly position to the separation position.

[0109] As a possible implementation, in the assembly position, the box body 11 is detachably mounted on the side wall of the carriage 21 by fasteners.

[0110] It should be noted that, in the present embodiment, the detachable connection method between the box body 11 and the carriage 21 may be a bolt connection method, or may be other methods that can achieve detachable connection between the box body 11 and the carriage 21. The present embodiment does not limit this, and the specific method shall be based on the ability to achieve the purpose of the invention disclosed herein.

[0111] The specific use process and working principle of the vehicle-mounted container 1 and the unmanned vehicle disclosed in the present invention are as follows:

[0112] Reference Figures 1 to 4 as well as Fig.23 As shown, when the vehicle-mounted container 1 is placed on the unmanned vehicle, the cabinet door 112 of the box body 11 in the vehicle-mounted container 1 is placed toward the side door 211 of the compartment 21 in the unmanned vehicle. At this time, the box body 11 is in the assembly position, and the caster assembly 121 of the box body bottom 111 is in the storage position, that is, the caster assembly 121 is now arranged close to the box body bottom 111, and the locking assembly 13 returns to the initial position under the stretching action of the second elastic member 1114.

[0113] When it is necessary to unload the vehicle-borne cargo container 1 from the unmanned vehicle, first, it is necessary to slowly pull the vehicle-borne cargo container 1 out of the side door 211 of the unmanned vehicle. As this process proceeds, the first caster assembly 1211 of the bottom 111 of the box body gradually moves away from the carriage 21. At this time, one hand pulls the first caster assembly 1211 so that the first caster assembly 1211 is pulled out to the extreme position in the horizontal direction. Then, one hand continues to hold the first caster assembly 1211, and the other hand pulls the locking assembly 13 horizontally outward until the first caster assembly 1211 can be rotated 90° toward the ground, that is, the first caster assembly 1211 enters the use position. At this time, release the locking assembly 13 to return it to its initial position, and lock the first caster assembly 1211 by the first locking member 132 arranged thereon.

[0114] Afterwards, continue to pull the vehicle-borne cargo container 1 outward from the unmanned vehicle. As this process proceeds, the second caster assembly 1212 tends to rotate toward the ground under the action of its own gravity and the first elastic member 1113. At this time, the locking assembly 13 is stretched outward again until the second caster assembly 1212 can rotate toward the ground under the action of its own gravity and the first elastic member 1113, and finally enter the use position. Afterwards, the second caster assembly 1212 can be locked by the second locking member 133 provided on the locking assembly 13.

[0115] It should be noted that during the process of the second caster assembly 1212 moving from the storage position to the use position, it is necessary to ensure that the first locking member 132 in the locking assembly 13 can always maintain a reliable locking of the first locking member 132 to prevent the first caster assembly 1211 from returning to the folded state during the opening of the second caster assembly 1212.

[0116] Finally, the operator can move the vehicle-mounted container 1 to a desired position by using the first caster 12112 provided on the first caster assembly 1211 and the second caster 12122 provided on the second caster assembly 1212 .

[0117] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0118] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0119] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle-mounted container, characterized in that: The invention comprises a box (11) for accommodating goods and having an assembly position for being placed on a vehicle body (2) and a separation position for being separated from the vehicle body (2); a moving mechanism (12) comprising a caster assembly (121) arranged at the bottom (111) of the box, the caster assembly (121) having a use position and a storage position, wherein in the use position, the caster assembly (121) is extended outward from the bottom (111) of the box to movably support the box (11) in the separation position, so that the vehicle-mounted cargo container moves automatically after being separated from the vehicle body; in the storage position, the caster assembly (121) is retracted to the bottom (111) of the box so that the box (11) is in the assembly position; and a locking assembly (13) for unlocking the caster assembly (121) in the use position; The caster assembly (121) comprises a first caster assembly (1211) and a second caster assembly (1212); in the use position, the first caster assembly (1211) and the second caster assembly (1212) are arranged at intervals along the inner and outer directions of the vehicle body (2) to movably support the box body (11); in the process of the box body (11) moving from the assembly position toward the separation position, the first caster assembly (1211) and the second caster assembly (1212) gradually enter the use position in sequence; the first caster assembly (1211) located on the outside is constructed as a folding structure and comprises a first caster bracket (12111) and a first caster bracket installed at the end of the first caster bracket (12111). The bottom (111) of the box body is provided with a first sliding member (1111) extending along the inward and outward directions, and the first caster bracket (12111) is slidably connected to the first sliding member (1111). In the storage position, the first caster bracket (12111) is arranged close to the bottom (111) of the box body and the first caster (12112) is located on the outside; in the process of moving from the storage position to the use position, the first caster bracket (12111) moves outward along the first sliding member (1111) and rotates so that the first caster (12112) is away from the box body (11), and the first caster assembly (12111) enters the use position.

2. The vehicle-mounted container according to claim 1, characterized in that: The first caster bracket (12111) includes a sliding rod (12111a), two first support rods (12111b) and a reinforcing rod (12111c), the two first support rods (12111b) are arranged in parallel at both ends of the sliding rod (12111a), the reinforcing rod (12111c) is arranged between the two first support rods (12111b), a first sliding groove (11111) is opened on the first sliding member (1111) along the inner and outer directions, the sliding rod (12111a) is slidably inserted into the first sliding groove (11111), and the first caster (12112) is rotatably arranged on the end of the first support rod (12111b) away from the sliding rod (12111a).

3. The vehicle-mounted container according to claim 1, characterized in that: The second caster assembly (1212) located on the inner side is constructed as a folding structure and comprises a second caster bracket (12121) and a second caster (12122); a swivel seat (1112) is provided at the bottom (111) of the box body; the second caster bracket (12121) is hinged on the swivel seat (1112); and a first elastic member (1113) for assisting the second caster assembly (1212) to move from the storage position to the use position is provided between the second caster bracket (12121) and the bottom (111) of the box body. In the storage position, the second caster bracket (12121) is arranged close to the bottom (111) of the box body, and the second caster (12122) is located outside the swivel seat (1112) and close to the bottom (111) of the box body. When the box body (11) moves from the assembly position toward the separation position, the second caster bracket (12121) gradually rotates to make the second caster (12122) gradually move away from the box body (11), and the second caster assembly (1212) enters the use position.

4. The vehicle-mounted container according to claim 3, characterized in that: The first elastic member (1113) is constructed as a torsion spring (11131), and the second caster bracket (12121) is constructed as a second support rod (12121a). One end of the torsion spring (11131) is arranged at the bottom (111) of the box body, and the other end of the torsion spring (11131) is arranged at one end of the second support rod (12121a) close to the swivel seat (1112). One end of the second support rod (12121a) is hinged on the swivel seat (1112), and the other end is rotatably connected to the second caster (12122).

5. The vehicle-mounted container according to claim 1, characterized in that: The locking assembly (13) comprises a second sliding member (131) movably arranged at the bottom (111) of the box body along the inward and outward directions, and a first locking member (132) and a second locking member (133) arranged on the second sliding member (131); by moving along the second sliding member (131) relative to the bottom (111) of the box body, the first locking member (132) is used to lock the first caster assembly (1211) that first enters the use position, and the second locking member (133) is used to lock the second caster assembly (1212) that enters the use position later while the first locking member (132) keeps locking the first caster assembly (1211).

6. The vehicle-mounted container according to claim 3, characterized in that: The locking assembly (13) comprises a second sliding member (131) movably arranged at the bottom (111) of the box body along the inner and outer directions, and a first locking member (132) and a second locking member (133) arranged at intervals along the extension direction of the second sliding member (131); the first caster bracket (12111) is provided with a first locking column (12113) colinear with its rotation axis; the second caster bracket (12121) is provided with a second locking column (12123) colinear with its rotation axis; the outer peripheral surface of the first locking column (12113) has at least one first locking surface (12113a) forming a plane; the outer peripheral surface of the second locking column (12123) has at least one second locking surface (12123a) forming a plane; the first locking member (132) is formed with a first locking column (12113) and a second locking column (12123) forming a plane. A third locking surface (132a) is used to cooperate with the first locking surface (12113a), and a fourth locking surface (133a) is formed on the second locking member (133) to cooperate with the second locking surface (12123a); in the use position, the first locking surface (12113a) is rotated to be parallel to the third locking surface (132a), and the second locking surface (12123a) is rotated to be parallel to the fourth locking surface (133a); through the movement of the second sliding member (131) relative to the box body (11), the first locking surface (12113a) and the third locking surface (132a), and the second locking surface (12123a) and the fourth locking surface (133a) can respectively contact or separate along the inner and outer directions, thereby switching between the locked and unlocked states.

7. The vehicle-mounted container according to claim 6, characterized in that: Along the inward and outward directions, the length of the third locking surface (132a) is greater than the length of the fourth locking surface (133a), so that when the fourth locking surface (133a) unlocks the second locking surface (12123a), the third locking surface (132a) still maintains contact and locking with the first locking surface (12113a).

8. The vehicle-mounted container according to claim 6, characterized in that: The first locking column (12113) is constructed as a triangular prism structure I which is colinear with the rotation axis of the first caster bracket (12111), and the triangular prism structure I is vertically arranged on a side of the first caster bracket (12111) close to the locking assembly (13), and a circumferential side surface of the triangular prism structure I forms the third locking surface (132a); the second locking column (12123) is constructed as a triangular prism structure II which is colinear with the rotation axis of the second caster bracket (12121), and the triangular prism structure II is vertically arranged on a side of the second caster bracket (12121) close to the locking assembly (13), and a circumferential side surface of the triangular prism structure II forms the fourth locking surface (133a).

9. The vehicle-mounted container according to claim 6, characterized in that: A second elastic member (1114) is provided between the second sliding member (131) and the bottom (111) of the box body. The outward movement of the second sliding member (131) is used to unlock the first locking column (12113) and the second locking column (12123). The second elastic member (1114) is used to assist the second sliding member (131) to move inward and reset.

10. The vehicle-mounted container according to claim 9, characterized in that: The second elastic member (1114) is constructed as a tension spring (11141), one end of the tension spring (11141) is arranged on the second sliding member (131), and the other end is arranged on the bottom (111) of the box body.

11. The vehicle-mounted container according to claim 6, characterized in that: The second sliding member (131) is provided with a second sliding groove (1311) along the inner and outer directions, and the bottom (111) of the box body is provided with a sliding block (1115) slidably matched with the second sliding groove (1311); the first locking member (132) includes a first connecting plate (1321) and a first locking plate (1322), the first connecting plate (1321) is arranged at the outer end of the second sliding member (131) and is located on a side of the second sliding member (131) close to the first caster assembly (1211), the first locking plate (1322) is protrudingly arranged on the first connecting plate (1321) and is parallel to the bottom (111) of the box body, and a side of the first locking plate (1322) close to the bottom (111) of the box body forms the third locking surface (132a); the second locking member (133) includes a second connecting plate (1321) and a first locking plate (1322) The invention relates to a first connecting plate (1331) and a second locking plate (1332), wherein the second connecting plate (1331) is arranged at the inner end of the second sliding member (131) and is located on the side of the second sliding member (131) close to the second caster assembly (1212), the second locking plate (1332) is protrudingly arranged on the second connecting plate (1331) and is parallel to the bottom of the box body (111), and the side of the second locking plate (1332) close to the bottom of the box body (111) forms the fourth locking surface (133a); in the process of the second sliding member (131) moving along the second sliding groove (1311) relative to the sliding block (1115), the first locking plate (1322) locks or unlocks the first locking column (12113), and the second locking plate (1332) locks or unlocks the second locking column (12123), respectively.

12. The vehicle-mounted container according to claim 11, characterized in that: There are two sliders (1115), each of which has a proximal end (11151) close to the other slider (1115) and a distal end (11152) away from the other slider (1115), and the second sliding member (131) has a rated stroke, and the difference between the distance between the distal ends (11152) of the two sliders (1115) and the length of the second slide groove (1311) is equal to the rated stroke; wherein the rated stroke is constructed as the distance that the second sliding member (131) moves along the inward and outward directions during the process from the locking assembly (13) locking the first caster assembly (1211) and the second caster assembly (1212) at the same time to the locking assembly (13) unlocking the first caster assembly (1211) and the second caster assembly (1212) at the same time.

13. An unmanned vehicle, characterized in that: It comprises a vehicle body (2) and a vehicle cargo container (1) according to any one of claims 1 to 12.

14. The unmanned vehicle according to claim 13, characterized in that: The vehicle body (2) is provided with a carriage (21), the carriage (21) having a lateral door (211), the box body (11) having a cabinet door (112), and in the assembly position, the vehicle-mounted cargo container (1) is placed in the carriage (21), and the cabinet door (112) is arranged toward the lateral door (211).

15. The unmanned vehicle according to claim 14, characterized in that: In the assembly position, the box body (11) is detachably mounted on the side wall of the carriage (21) by means of fasteners.

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