Modularized shuttle vehicle

Abstract

The utility model discloses a modularized shuttle vehicle which comprises a machine frame and a group of first driving assemblies arranged on the two sides of the machine frame, and the first driving assemblies are used for driving the machine frame to move on a track. The multi-stage storing and taking assembly is arranged above the rack, the second driving assembly drives the multi-stage storing and taking assembly to be unfolded / retracted, and the second driving assembly is arranged below the rack; according to the multi-stage shuttle vehicle, the modular design is adopted, all components (such as the rack, the first driving assembly, the second driving assembly and the multi-stage access assembly) of the shuttle vehicle are divided into independent modules, and therefore assembling and maintaining can be more convenient and faster; and all the modules are connected through standardized interfaces, so that the mounting and dismounting processes are simpler and more convenient, and the complexity and time cost of manual operation are reduced.

Description

Technical Field

[0001] This utility model is a modular shuttle vehicle, belonging to the field of shuttle vehicle technology. Background Technology

[0002] A shuttle is a transport vehicle used in automated warehousing systems. It moves along a set path on tracks to efficiently move goods within a warehouse. A shuttle typically consists of a frame, drive components, and storage / retrieval components, enabling it to perform material storage and retrieval operations within a defined track system. By automating the handling and retrieval of goods within the warehouse via a track system, shuttles reduce human intervention and improve warehousing efficiency. They can move efficiently in confined spaces, thereby increasing the utilization of warehouse space. Automated operation reduces manual labor, improves work efficiency, and minimizes human error.

[0003] The existing shuttle car requires a large number of materials during assembly and disassembly, and bolts are usually used as connectors. With the long-term operation of the shuttle car, vibration or slight displacement on the track may cause the connection between the shuttle car components to loosen or detach, affecting the stability of the car body and normal operation.

[0004] Because the connections between the various components are quite complex, disassembly and maintenance may require disassembling multiple parts, which increases the difficulty and cost of maintenance.

[0005] Therefore, the purpose of this study is to design a modular shuttle that has anti-derailment and stabilization effects during long-term use. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a modular shuttle vehicle to solve the problems of the existing technology.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] A modular shuttle includes: a frame, and a set of first drive components disposed on both sides of the frame, the first drive components being used to drive the frame to move on a track;

[0009] A multi-level access component is disposed above the rack, and a second drive component is disposed below the rack to drive the multi-level access component to expand / retract.

[0010] It also includes a quick-release anti-detachment component, through which the first drive component, the second drive component, and the multi-level access component are detachably mounted on the frame.

[0011] As a further improvement, the first drive assembly includes a first rotating shaft, drive wheels fixedly mounted at both ends of the first rotating shaft, and a first motor that drives the first rotating shaft to rotate.

[0012] The frame includes a set of vertical plates and a frame body fixedly installed below the vertical plates. An open arc-shaped groove is provided on one side of the vertical plates. The first rotating shaft is inserted into two of the arc-shaped grooves in the same set. The first motor is installed on the frame body below by a quick-release anti-detachment component.

[0013] As a further improvement, the multi-level access assembly includes a fixed plate mounted on the frame via the quick-release anti-detachment assembly, and an access plate movably mounted on the fixed plate, the access plate extending / retracting via the second drive assembly.

[0014] As a further improvement, the second drive assembly includes a rack portion disposed below the access plate;

[0015] The gearbox motor assembly is fixedly mounted on the frame, the second rotating shaft is inserted into the gearbox motor assembly, and the drive gears are installed at both ends of the second rotating shaft. The gearbox motor assembly is fixedly mounted by a quick-release anti-detachment component.

[0016] Two sets of drive wheels are rotatably mounted on the frame. The two drive wheels in the same set are connected by a toothed belt. The outer side of the toothed belt meshes with the rack and the drive gear.

[0017] As a further improvement, the quick-release anti-detachment component includes a main sleeve welded and fixed to the frame, one end of the main sleeve is provided with a locking hole, and the locking hole is provided with an internal thread.

[0018] A locking rod passes through the fixing plate, the side of the first motor, and the side of the second motor, and the locking rod is inserted into the lock hole for internal thread fixing.

[0019] As a further improvement, the locking rod includes a lock head with a hexagonal recess on the side, a main rod away from the recess of the lock head, and three auxiliary rods split at the end of the main rod. The three auxiliary rods are integrally formed with the main rod, and the diameter of the three auxiliary rods is the same as that of the main rod when they are in contact.

[0020] A conical head limiting member is coaxially provided at the end of the main sleeve away from the locking rod. The main sleeve and the conical head limiting member are connected by a U-shaped strip, and the three auxiliary rods are spread apart by the conical part of the conical head limiting member.

[0021] As a further improvement, the wall thickness of the auxiliary rod facing the main rod is less than the wall thickness of the auxiliary rod facing the conical block, and a cavity is formed inside the auxiliary rod facing the main rod.

[0022] As a further improvement, the auxiliary rod is provided with a groove facing the center of the conical block.

[0023] As a further improvement, the length of the main sleeve is consistent with the length of the main rod.

[0024] Beneficial effects:

[0025] This utility model adopts a modular design, dividing the various components of the shuttle (such as the frame, the first drive assembly, the second drive assembly, and the multi-level access assembly) into independent modules, which makes assembly and maintenance more convenient and faster.

[0026] Furthermore, the various modules are connected through standardized interfaces, making the installation and disassembly process simpler and reducing the complexity and time cost of manual operation.

[0027] The quick-release anti-detachment components enable the detachable installation of various drive components and multi-level access components. This not only improves the flexibility of the shuttle during installation and maintenance but also effectively prevents components from loosening or falling off due to minor vibrations or displacements during use.

[0028] During long-term use, the shuttle may be affected by track vibration and load changes, leading to component loosening and detachment problems that are common in traditional designs. Quick-release anti-detachment components enhance the stability between components, ensuring that the connecting parts remain secure even after prolonged operation, thus guaranteeing the shuttle's operational stability.

[0029] Thanks to its modular and quick-release design, the shuttle's maintenance and replacement process has become more efficient. Workers can simply disassemble modules quickly for replacement or repair, eliminating the need for complex disassembly work and reducing maintenance time and costs. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural diagram of a modular shuttle vehicle according to this utility model.

[0032] Figure 2 This is an exploded structural diagram of a modular shuttle vehicle according to this utility model.

[0033] Figure 3This is a structural diagram of a quick-release anti-detachment component before assembly according to this utility model.

[0034] Figure 4 This is a schematic diagram of the assembled structure of a quick-release anti-detachment component according to this utility model.

[0035] Figure 5 This is a cross-sectional schematic diagram of a locking rod according to the present invention.

[0036] 1. Frame; 2. First drive assembly; 3. Multi-level access assembly; 4. Second drive assembly; 5. Quick-release anti-detachment assembly; 41. Second rotating shaft; 42. Drive wheel; 11. Vertical plate; 12. Frame body; 13. Arc groove; 31. Fixing plate; 32. Access plate; 33. Rack section; 21. Gearbox motor assembly; 22. Drive gear; 23. Transmission wheel; 24. Toothed belt; 25. First rotating shaft; 51. Main sleeve; 52. Lock hole; 53. Locking rod; 54. Lock head; 55. Main rod; 56. Auxiliary rod; 57. Groove; 58. U-shaped strip; 59. Conical head limiting component. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] Reference Figure 1-5 As shown, a modular shuttle includes: a frame 1, and a set of first drive components 2 disposed on both sides of the frame 1, the first drive components 2 being used to drive the frame 1 to move on a track;

[0040] A multi-level access component 3 is disposed above the rack 1, and a second drive component 4 is disposed below the rack 1 to drive the multi-level access component 3 to expand / retract.

[0041] It also includes a quick-release anti-detachment component 5, through which the first drive component 2, the second drive component 4, and the multi-level access component 3 are detachably installed on the frame 1.

[0042] By adopting a modular design, the various components of the shuttle (such as frame 1, first drive assembly 2, second drive assembly 4, and multi-level access assembly 3) are divided into independent modules, which makes assembly and maintenance more convenient and faster.

[0043] Furthermore, the various modules are connected through standardized interfaces, making the installation and disassembly process simpler and reducing the complexity and time cost of manual operation.

[0044] The quick-release anti-detachment component 5 enables the detachable installation of each drive component and the multi-level access component 3. This not only improves the flexibility of the shuttle during installation and maintenance but also effectively prevents components from loosening or falling off due to minor vibrations or displacements during use.

[0045] During long-term use, the shuttle may be affected by track vibration and load changes, leading to component loosening and detachment problems that are common in traditional designs. The quick-release anti-detachment component 5 enhances the stability between components, ensuring that the connecting parts remain secure even after prolonged operation, thus guaranteeing the shuttle's operational stability.

[0046] Thanks to its modular and quick-release design, the shuttle's maintenance and replacement process has become more efficient. Workers can simply disassemble modules quickly for replacement or repair, eliminating the need for complex disassembly work and reducing maintenance time and costs.

[0047] Compared to existing technologies, traditional shuttle designs typically fix multiple components together, making the connection method more complex. Maintenance requires more disassembly and adjustment, and it is difficult to quickly disassemble when replacing parts.

[0048] Through modular design, each component (such as rack 1, drive assembly, and multi-level access assembly 3) is independent and standardized, making assembly, disassembly, and replacement more convenient. Modularity allows individual parts to be replaced or repaired as needed, reducing dependence on the overall system and improving flexibility and operability.

[0049] Most shuttle systems use traditional connection methods, requiring manual operation for disassembly and installation of connectors such as bolts and clamps. This is not only time-consuming but can also lead to loosening or detachment, affecting operational stability. By introducing the quick-release anti-detachment component 5, rapid disassembly and secure installation of the component are achieved. This design not only shortens maintenance and replacement time but also ensures that the component remains firmly connected even in high-vibration working environments, preventing system failures or safety hazards caused by loosening.

[0050] In traditional designs, prolonged use may cause some fixed connections to loosen, especially under frequent operation, which could lead to safety accidents or equipment malfunctions. The quick-release anti-detachment component 5 effectively prevents components from loosening due to vibration and frequent use. The anti-detachment design ensures that each module is always securely fastened in its proper position, avoiding unnecessary malfunctions and safety risks during equipment operation, thereby improving the stability and reliability of the shuttle.

[0051] To improve the flexibility and stability of the drive system, the first drive assembly 2 includes a first rotating shaft 25, drive wheels 42 fixedly installed at both ends of the first rotating shaft 25, and a first motor that drives the first rotating shaft 25 to rotate.

[0052] The frame 1 includes a set of vertical plates 11 and a frame body 12 fixedly installed below the vertical plates 11. An open arc-shaped groove 13 is provided on one side of the vertical plate 11. The first rotating shaft 25 is inserted into the two arc-shaped grooves 13 in the same set. The first motor is installed on the frame body 12 below by a quick-release anti-detachment component 5.

[0053] The first motor drives the rotation of the shaft, making the entire drive system more dynamically responsive. The use of the quick-release anti-detachment component 5 makes maintenance and replacement more convenient, reducing equipment downtime.

[0054] The frame 1, composed of a vertical plate 11 and a frame body 12, provides stable support. In particular, the open arc-shaped groove 13 accommodates the first rotating shaft 25, ensuring free rotation of the shaft and stability during operation. The design of the vertical plate 11 and the arc-shaped groove 13 helps optimize the installation and movement path of the rotating shaft, reduces friction and wear, and improves the service life of the system.

[0055] As a further improvement, the multi-level access component 3 includes a fixed plate 31 mounted on the frame 12 via the quick-release anti-detachment component 5, and an access plate 32 movably mounted on the fixed plate 31, wherein the access plate 32 extends / retracts via the second drive component 4.

[0056] The second drive assembly 4 includes a rack portion 33 disposed below the access plate 32;

[0057] The gearbox motor assembly 21 is fixedly installed on the frame 1, the second rotating shaft 41 is inserted into the gearbox motor assembly 21, and the drive gear 22 is installed at both ends of the second rotating shaft 41. The gearbox motor assembly 21 is fixedly installed by the quick-release anti-detachment component 5.

[0058] Two sets of transmission wheels 23 are rotatably mounted on the frame 1. The two transmission wheels 23 in the same set are connected by a toothed belt 24. The outer side of the toothed belt 24 meshes with the rack 33 and the drive gear 22.

[0059] The multi-level access component 3 increases the system's flexibility through the extension and retraction of the access plate 32. The access plate 32 can extend or retract under the control of the second drive component 4 to adapt to different operational needs. This effectively improves the system's access efficiency for different items and allows the position of the access plate 32 to be adjusted as needed.

[0060] The second drive assembly 4, through a rack, gearbox motor assembly 21 and toothed belt 24 transmission system, enables precise control and efficient transmission. The meshing of the gearbox motor assembly 21 with the rack section 33 provides sufficient torque and power to ensure the smooth operation of the storage plate 32 during extension and retraction. The toothed belt 24 transmission system not only reduces noise during transmission but also increases transmission stability and accuracy.

[0061] The quick-release anti-detachment component 5 not only ensures the system's safety during operation and prevents components from falling off, but also makes maintenance and replacement more efficient. Users can quickly disassemble and install it without complicated tools, greatly saving maintenance time and improving the system's reliability and operability.

[0062] To further introduce the quick-release anti-detachment component 5, in order to improve the tight connection and safety between the locking rod 53 and the main sleeve 51, the quick-release anti-detachment component 5 includes a main sleeve 51 welded and fixed on the frame 1. One end of the main sleeve 51 is provided with a locking hole 52, and the locking hole 52 is provided with an internal thread.

[0063] A locking rod 53 passes through the fixing plate 31, the side of the first motor, and the side of the second motor, and the locking rod 53 is inserted into the locking hole 52 for internal thread fixation.

[0064] As a further improvement, the locking rod 53 includes a lock head 54 with a hexagonal recess on the side, a main rod 55 away from the recess of the lock head 54, and three auxiliary rods 56 split at the end of the main rod 55. The three auxiliary rods 56 are integrally formed with the main rod 55, and the diameter of the three auxiliary rods 56 is the same as that of the main rod 55 when they are in contact.

[0065] A conical head limiting member 59 is coaxially provided at one end of the main sleeve 51 away from the locking rod 53. The main sleeve 51 and the conical head limiting member 59 are connected by a U-shaped strip 58. The conical part of the conical head limiting member 59 supports the three auxiliary rods 56.

[0066] The locking rod 53 is fixed by the internal thread of the locking hole 52. The locking mechanism of the internal thread and the locking rod 53 ensures a stable connection between the locking rod 53 and the main sleeve 51. This design not only ensures the reliability of the fixing process, but also avoids loosening and falling off due to vibration or external force, thereby improving the safety of the overall system.

[0067] The hexagonal recessed locking head 54 of the locking lever 53 allows for effective operation using standard tools (such as wrenches), simplifying the operation process. The hexagonal recess provides greater gripping force and more precise rotational control, avoiding slippage and instability issues that may occur in traditional designs.

[0068] During use, the three auxiliary rods 56 are spread apart in conjunction with the conical head limiting component 59, thereby forming a reverse limiting between the auxiliary rods 56 and the main sleeve 51, further improving the limiting strength and effectively preventing the connecting parts from loosening during subsequent use of the vehicle body. The split design of the three auxiliary rods 56 forms a split structure at the end of the main rod 55, which helps to quickly adjust, position, and securely lock during installation. The auxiliary rods 56 can work more seamlessly with the main rod 55, and adjust their position according to the action of external forces, ensuring stability.

[0069] The conical section expands the auxiliary rods 56, ensuring that the three auxiliary rods 56 expand evenly under force. The conical structure provides an effective limiting function after the locking rod 53 enters the main sleeve 51, preventing structural damage or failure of the auxiliary rods 56 due to excessive force or misalignment. The limiting component plays an adjustment and protection role, ensuring the stability of the system during long-term use.

[0070] The U-shaped strip 58 connection design makes the connection between the main sleeve 51 and the conical head limiting part 59 more stable and reliable, further enhancing the overall strength of the component and preventing structural loosening or deformation caused by external forces.

[0071] The quick-release anti-detachment component 5 is designed to maximize the ease of disassembly and enhance connection strength in the event of impact. With the locking rod 53 and the locking head 54, operators can easily install and remove the component without complicated tools or cumbersome procedures. This quick-release function greatly improves equipment efficiency and saves maintenance time, especially during maintenance or replacement.

[0072] The integrated design of the auxiliary rod 56 and the main rod 55 reduces the number of separate parts and avoids insufficient strength caused by improper connection between multiple parts. The consistent diameter design of the auxiliary rod 56 and the main rod 55 ensures that the locking rod 53 is subjected to stable and uniform force during use, avoiding structural deformation caused by uneven force.

[0073] When subjected to vibration or impact, it can effectively disperse externally applied forces, reducing structural damage caused by uneven mechanical action. In particular, the design of the conical head limiting member 59 can effectively prevent unnecessary loosening or damage under high-frequency vibration or external impact.

[0074] To ensure that the auxiliary rod 56 can undergo recoverable deformation under external force, the wall thickness of the auxiliary rod 56 on the side facing the main rod 55 is less than the wall thickness on the side facing the conical block, and a cavity is formed inside the auxiliary rod 56 on the side facing the main rod 55. A groove 57 is provided in the middle of the auxiliary rod 56 facing the conical block. The length of the main sleeve is the same as that of the main rod 55.

[0075] The auxiliary rod 56 has a thinner wall thickness on the side facing the main rod 55, which allows the auxiliary rod 56 to produce controllable deformation within a certain range when external force is applied, increasing the flexibility of the system and effectively absorbing external impact force to prevent it from being transmitted to other components.

[0076] Compared to thick-walled designs, thin-walled structures are more likely to deform than fracture when subjected to external impacts, reducing the risk of fracture or failure due to excessive stress.

[0077] After the external force is removed, the auxiliary rod 56 can quickly return to its original shape, ensuring the functionality and long-term reliability of the component.

[0078] In order to ensure that the auxiliary rod 56 can bend and return to its original shape after being subjected to force, while maintaining a certain degree of rigidity, the choice of material for the locking rod 53 is crucial.

[0079] The locking bar 53 needs to withstand significant external forces without permanent deformation. The material requires high strength and rigidity, typically alloy steel or high-strength steel. These materials effectively prevent deformation under high loads, maintaining structural stability.

[0080] For the auxiliary rod 56, the material needs to have a certain degree of elasticity, so that the auxiliary rod 56 can bend after being subjected to force and quickly return to its original shape. At this time, materials with good elastic recovery properties, such as spring steel or stainless steel, would be ideal choices.

[0081] In this embodiment, both the main rod 55 and the locking rod 53 are made of spring rod material. In other embodiments, other materials may also be used.

[0082] The auxiliary rod 56 has a thicker wall on the side facing the conical block, and it has a cavity inside. The main purpose is to increase the wall thickness to enhance the compressive strength and rigidity of the auxiliary rod 56, while the cavity can reduce the weight of the auxiliary rod 56, ensuring its structural strength while reducing material consumption.

[0083] A groove 57 is provided in the middle of the auxiliary rod 56 on the side facing the conical block, mainly to optimize the force distribution and enhance the adaptability of the auxiliary rod 56 when in contact with the conical block. The groove 57 allows the auxiliary rod 56 to form a more stable contact surface when in contact with the conical block, thereby enabling the conical block to easily separate from the three auxiliary rods 56.

[0084] The reason why the main sleeve 51 and the main rod 55 are of the same length is to ensure that the main rod 55 and the main sleeve 51 can be fully connected during use, to ensure the stable locking between the main rod 55 and the locking rod 53, and to prevent relative movement between the main rod 55 and the main sleeve 51 when under force. At the same time, it can ensure that the auxiliary rod 56 is fully extended, ensuring the accuracy of the installation process and preventing the components from becoming loose or unstable in the working state.

[0085] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0086] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0087] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A modular shuttle vehicle, characterized in that, include: A frame (1), and a set of first drive components (2) disposed on both sides of the frame (1), the first drive components (2) being used to drive the frame (1) to move on the track; A multi-level access component (3) is disposed above the rack (1), and a second drive component (4) is disposed below the rack (1) to drive the multi-level access component (3) to expand / retract. It also includes a quick-release anti-detachment component (5), through which the first drive component (2), the second drive component (4), and the multi-level access component (3) are detachably installed on the frame (1).

2. The modular shuttle vehicle according to claim 1, characterized in that: The first drive assembly (2) includes a first rotating shaft (25), drive wheels (42) fixedly installed at both ends of the first rotating shaft (25), and a first motor that drives the first rotating shaft (25) to rotate; The frame (1) includes a set of vertical plates (11) and a frame (12) fixedly installed below the vertical plates (11). An open arc-shaped groove (13) is provided on one side of the vertical plates (11). The first rotating shaft (25) is inserted into the two arc-shaped grooves (13) in the same set. The first motor is installed on the frame (12) below by a quick-release anti-detachment component (5).

3. The modular shuttle vehicle according to claim 2, characterized in that: The multi-level access component (3) includes a fixed plate (31) mounted on the frame (12) via the quick-release anti-detachment component (5) and an access plate (32) movably mounted on the fixed plate (31). The access plate (32) extends / retracts via the second drive component (4).

4. A modular shuttle vehicle according to claim 3, characterized in that: The second drive assembly (4) includes a rack portion (33) disposed below the access plate (32); The gearbox motor assembly (21) is fixedly installed on the frame (1), the second rotating shaft (41) is inserted into the gearbox motor assembly (21), and the drive gear (22) is installed at both ends of the second rotating shaft (41). The gearbox motor assembly (21) is fixedly installed by a quick-release anti-detachment assembly (5). Two sets of drive wheels (23) are rotatably mounted on the frame (1). The two drive wheels (23) in the same set are connected by a toothed belt (24). The outer side of the toothed belt (24) meshes with the rack (33) and the drive gear (22).

5. A modular shuttle vehicle according to claim 4, characterized in that: The quick-release anti-detachment component (5) includes a main sleeve (51) welded and fixed on the frame (1), and a locking hole (52) is provided at one end of the main sleeve (51), and an internal thread is provided inside the locking hole (52); A locking rod (53) passes through the fixing plate (31), the side of the first motor, and the side of the second motor, and the locking rod (53) is inserted into the locking hole (52) for internal thread fixing.

6. A modular shuttle vehicle according to claim 5, characterized in that: The locking rod (53) includes a lock head (54) with a hexagonal recess on the side, a main rod (55) away from the recess of the lock head (54), and three auxiliary rods (56) split at the end of the main rod (55). The three auxiliary rods (56) are integrally formed with the main rod (55), and the diameter of the three auxiliary rods (56) is the same as that of the main rod (55) when they are in contact. A conical head limiting member (59) is coaxially provided at the end of the main sleeve (51) away from the locking rod (53). The main sleeve (51) and the conical head limiting member (59) are connected by a U-shaped strip (58). The conical part of the conical head limiting member (59) opens up the three auxiliary rods (56).

7. A modular shuttle vehicle according to claim 6, characterized in that: The wall thickness of the auxiliary rod (56) facing the main rod (55) is less than the wall thickness of the auxiliary rod (56) facing the conical block, and a cavity is formed inside the auxiliary rod (56) facing the main rod (55).

8. A modular shuttle vehicle according to claim 7, characterized in that: The auxiliary rod (56) has a groove (57) facing the middle of the conical block.

9. A modular shuttle vehicle according to claim 8, characterized in that: The length of the main sleeve (51) is the same as the length of the main rod (55).

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