Trolley and trolley set

Abstract

The utility model is suitable for transportation equipment, and provides a trolley and a trolley set. The trolley group comprises a plurality of trolleys, each trolley comprises a trolley body, a first mounting piece, a second mounting piece and a connecting piece, the first mounting piece and the second mounting piece are arranged on the trolley body, one of the first mounting piece and the second mounting piece is provided with a connecting convex part, and the other one of the first mounting piece and the second mounting piece is provided with a connecting concave part; the two carts are connected when the connecting convex part of one of the two carts is inserted into the connecting concave part of the other and the first mounting piece of the one and the second mounting piece of the other are connected through the connecting piece. By adopting the connecting convex part and the connecting concave part which are matched for use in the application, and by virtue of a manner of fastening by the connecting piece, two adjacent carts can be stably connected; the connecting structure can effectively restrain the relative position between the two adjacent carts and limit the relative movement of the two adjacent carts under the complex working conditions such as uneven ground or turning, and the operation reliability of the multiple carts under the complex working conditions is effectively improved.

Description

Strollers and stroller sets Technical Field

[0001] This application belongs to the field of transportation equipment technology, and more specifically, relates to a trolley and trolley assembly. Background Technology

[0002] A trolley is a vehicle propelled by human power or other power sources for transporting or moving goods. In related technologies, when multiple items need to be transported simultaneously, operators first load the items onto different trolleys, then connect adjacent items, and finally push the multiple trolleys to move in coordination to complete the batch transport.

[0003] However, when faced with uneven ground or complex conditions such as bends, it is difficult to maintain a constant distance between two adjacent carts. This not only easily leads to loose connections or even scattering of items, but also seriously affects transportation efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a trolley and trolley assembly, which aims to solve the technical problem in the related art that it is difficult to keep the distance between two adjacent trolleys constant, resulting in low transportation efficiency.

[0005] To achieve the above objectives, according to one aspect of this application, a trolley assembly is provided, comprising a plurality of trolleys. Each trolley includes a trolley body, a first mounting member, a second mounting member, and a connector. The first mounting member and the second mounting member are disposed on the trolley body, and one of them is provided with a connecting protrusion, while the other is provided with a connecting recess. When the connecting protrusion of one of the two trolleys is inserted into the connecting recess of the other, and the first mounting member of one trolley and the second mounting member of the other are connected by the connector, the two trolleys are connected.

[0006] By employing the connecting protrusions and recesses used in this application, and further secured with connectors, adjacent trolleys can be stably connected, thereby connecting multiple trolleys in a trolley group. This connection structure effectively constrains the relative position between adjacent trolleys, limiting their relative movement on uneven ground or in complex conditions such as turns, thus significantly improving the reliability of multiple trolleys operating under complex conditions. On the one hand, the stable connection not only reduces the risk of items falling off, ensuring their safety during transportation, but also reduces the need for frequent stops and reorganization due to loose or scattered items, effectively improving transportation efficiency and saving transportation time and labor costs.

[0007] Optionally, a connecting protrusion is provided in the first mounting member and has a first connecting hole; a connecting recess is provided in the second mounting member, and the second mounting member also has a second connecting hole, which communicates with the connecting recess; when the connecting protrusion of one of the two trolleys is inserted into the connecting recess of the other, the first mounting member of one of the two trolleys passes through the connecting member into the first connecting hole of one of the two trolleys and the second connecting hole of the other, and is connected to the second mounting member of the other.

[0008] On the one hand, the structural design of the connecting protrusion inserting into the connecting recess allows for precise positioning of the two trolleys during connection. Simultaneously, the design of the connector passing through the first and second connecting holes after the connecting protrusion is inserted into the connecting recess constrains the relative movement of the trolleys from multiple directions, thus ensuring a stable connection between the first and second mounting components and guaranteeing stability during transportation. On the other hand, the operation process of inserting the connecting protrusion into the connecting recess and then passing the connector through the first and second connecting holes is simple and easy to understand. Workers can quickly complete the connection of the trolleys without the need for complex tools or specialized skills, shortening preparation time and improving work efficiency.

[0009] Optionally, the connector includes a connecting body and a first limiting protrusion, the first limiting protrusion being disposed on the connecting body; when the connector is inserted into the second connecting hole, the connecting body is inserted into the second connecting hole, the first limiting protrusion is located outside the second connecting hole, and the hole wall of the second connecting hole prevents the first limiting protrusion from entering the second connecting hole.

[0010] On the one hand, the first limiting protrusion cooperates with the wall of the second connecting hole to form a limiting structure, effectively preventing the connector from detaching from the second connecting hole and ensuring that the two adjacent trolleys remain firmly connected during transportation, thus improving the reliability of the transportation operation. On the other hand, when installing the connector, the operator does not need to precisely control the insertion depth of the connector. Simply insert the connector body into the second connecting hole until the first limiting protrusion abuts against the outer side of the hole wall, achieving accurate positioning and rapid installation of the connector. This reduces the difficulty of operation and improves the efficiency of trolley connection.

[0011] Optionally, the connector further includes a second limiting protrusion with an elastic structure. The second limiting protrusion is disposed on the connecting body and is spaced apart from the first limiting protrusion along the length direction of the connecting body. When the connector is inserted into the second connecting hole, the second limiting protrusion is located outside the second connecting hole, and the hole wall of the second connecting hole prevents the second limiting protrusion from entering the second connecting hole.

[0012] On the one hand, the first and second limiting protrusions form a double limiting structure. During trolley transportation, even if one of the first or second limiting protrusions becomes slightly loose due to vibration, the other can still effectively limit the connector, further reducing the risk of the connector coming out of the second connecting hole and further improving the stability of the connection between adjacent trolleys. On the other hand, the elastic second limiting protrusion can automatically adapt to the position and size of the connecting hole during installation, without the need for complex calibration and adjustment steps. Simply insert the connector into the second connecting hole, and the first and second limiting protrusions will automatically engage on both sides of the hole wall, achieving rapid installation and improving trolley assembly efficiency. At the same time, the elastic second limiting protrusion can also be quickly disassembled without complex disassembly tools or steps. Simply apply a large pulling force to the connector to pull it out of the second connecting hole.

[0013] Optionally, the trolley also includes a connecting rope that connects to the connector and the trolley body.

[0014] The connecting rope ensures the connector is attached to the cart body, preventing it from detaching and being lost during use due to vibration or impact. This ensures the connector remains securely attached to the cart body for future use. Furthermore, when the connector is subjected to significant external force, the connecting rope distributes some of the tension, providing cushioning and preventing damage or detachment due to excessive stress. This effectively improves the reliability of connections between adjacent carts.

[0015] Optionally, the connecting rope is detachably connected to the vehicle body.

[0016] If the connecting rope malfunctions, the damaged rope can be quickly removed and replaced with a new one by disassembling the fasteners. This eliminates the need for complicated tools and lengthy procedures, significantly reducing maintenance time, improving the efficiency of the trolley, and minimizing work delays caused by equipment failure.

[0017] Optionally, the first mounting member is detachably mounted on the vehicle body; and / or, the vehicle body is provided with a first mounting groove, a portion of the structure of the first mounting member is embedded in the first mounting groove, the first mounting groove has a first stop groove wall, the first stop groove wall stops the first mounting member from continuing to move toward the first mounting groove by contacting the first mounting member; and / or, the second mounting member is detachably mounted on the vehicle body; and / or, the vehicle body is provided with a second mounting groove, a portion of the structure of the second mounting member is embedded in the second mounting groove, the second mounting groove has a second stop groove wall, the second stop groove wall stops the second mounting member from continuing to move toward the second mounting groove by contacting the second mounting member; and / or, the second mounting member is further provided with a storage hole, into which a connector can pass.

[0018] When the first mounting component or connecting protrusion malfunctions or is damaged, maintenance personnel can directly remove it from the vehicle body for individual repair or replacement without extensive disassembly of the entire vehicle body. This improves the accuracy and efficiency of repairs and reduces costs. On one hand, the designed first mounting groove not only provides a clear installation position for the first mounting component, allowing parts of its structure to be precisely fitted into the groove, improving installation efficiency and accuracy, but also effectively reduces the overall size of the trolley. On the other hand, the designed first stop groove prevents the first mounting component from being over-embedded in the first mounting groove and also restricts lateral and longitudinal movement during use. Because the first mounting component is precisely confined within the first mounting groove, its connection to the vehicle body is more stable, effectively resisting displacement caused by external forces, vibrations, or impacts. This significantly enhances the stability of the connection between the first mounting component and the vehicle body, reducing the possibility of malfunctions due to loose connections.

[0019] When the second mounting component or connecting recess malfunctions or is damaged, maintenance personnel can directly remove it from the vehicle body for individual repair or replacement, eliminating the need for extensive disassembly of the entire vehicle body. This improves the accuracy and efficiency of repairs and reduces costs. Firstly, the designed second mounting recess provides a clear installation position for the second mounting component, allowing parts of its structure to be precisely fitted into the recess, improving installation efficiency and accuracy. It also effectively reduces the overall size of the trolley. Secondly, the second stop groove prevents the second mounting component from over-embedding into the second mounting recess and also limits lateral and longitudinal movement during use. Because the second mounting component is precisely confined within the second mounting recess, its connection to the vehicle body is more stable, effectively resisting displacement caused by external forces, vibrations, or impacts. This significantly enhances the stability of the connection between the second mounting component and the vehicle body, reducing the possibility of malfunctions due to loose connections.

[0020] When not in use, the connectors can be threaded through the storage holes, providing a fixed storage location and preventing damage or difficulty in locating them due to loss or careless placement. This helps maintain a clean and orderly workplace and improves work efficiency. Simultaneously, the storage holes offer a relatively stable and safe storage environment, preventing damage from collisions, scratches, or other external forces during transportation or idle periods, effectively extending the connectors' lifespan.

[0021] Optionally, the vehicle body has a first surface and a second surface, which are arranged adjacent to or opposite to each other; a first mounting member is disposed on the first surface, and a second mounting member is disposed on the second surface.

[0022] When connecting multiple trolleys, firstly, the connecting protrusion of the first mounting member on the first surface of one trolley is inserted into the connecting recess of the second mounting member on the second surface of the adjacent trolley to complete the initial positioning. Then, a connector is used to securely connect the two trolleys. Since the first and second surfaces are adjacent or opposite each other, after the connecting protrusion of the first mounting member on the first surface of one trolley is inserted into the connecting recess of the second mounting member on the second surface of another trolley, the connecting recess of the second mounting member on the second surface of another trolley can be inserted into the first mounting protrusion of another trolley. Then, a connector is used to securely connect the connected trolleys to each other. Repeating the above connection operation allows multiple trolleys to be connected sequentially end-to-end.

[0023] Optionally, the first surface and the second surface are arranged opposite to each other; and / or, there are two first mounting members and two second mounting members, with the two first mounting members respectively arranged on the first surface and the second surface, and the two second mounting members respectively arranged on the first surface and the second surface, and the line connecting the two first mounting members intersecting the line connecting the two second mounting members.

[0024] When multiple connected trolleys are pushed forward, the pushing force from the front or the pulling force from the rear can be evenly distributed to the opposite surfaces of each trolley through the relatively arranged first and second mounting members. This avoids excessive local stress at the trolley connection points due to uneven force distribution, thereby improving the stability of the connection and reducing the risk of damage. Simultaneously, the relatively arranged first and second surfaces provide symmetrical space for the arrangement of the first and second mounting members, facilitating design and manufacturing. When two trolleys are connected, the connecting protrusion of the first mounting member on the first surface of the first trolley inserts into the connecting recess of the second mounting member on the second surface of the second trolley, and vice versa. The two first and two second mounting members effectively strengthen the connection strength and stability of the two trolleys. Meanwhile, the lines connecting the two first mounting components intersect with the lines connecting the two second mounting components. This structural design greatly restricts the relative rotational freedom of the two trolleys after they are connected. Since each mounting component hinders the rotation of the trolley, the constraint effects of multiple mounting components are superimposed, making it difficult for the trolleys to rotate relative to each other. This further enhances the stability of the connection and ensures that the trolleys maintain a relatively fixed position during transportation, preventing items from falling or the trolleys from being damaged due to mutual rotation.

[0025] According to another aspect of this application, a trolley is provided, which is the trolley described above.

[0026] By employing the trolley of this application, two adjacent trolleys can be stably connected. The connection structure on the trolley effectively constrains the relative position between two adjacent trolleys, limiting their relative movement in complex conditions such as uneven ground or corners, thus significantly improving the reliability of multiple trolleys operating under complex conditions. On the one hand, the stable connection not only reduces the risk of items falling off, ensuring the safety of goods during transportation, but also reduces the need for frequent stops and reorganization due to loose or scattered items, effectively improving transportation efficiency and saving transportation time and labor costs.

[0027] The beneficial effects of the trolley assembly provided in this application are as follows: by using the connecting protrusion and connecting recess used in this application, and by fastening with connecting parts, two adjacent trolleys can be stably connected, thereby connecting multiple trolleys in the trolley assembly; this connection structure can effectively constrain the relative position between two adjacent trolleys, limit the relative movement of two adjacent trolleys in complex working conditions such as uneven ground or corners, and effectively improve the reliability of multiple trolleys operating in complex working conditions.

[0028] On the one hand, a stable connection not only reduces the risk of items falling off and ensures the safety of items during transportation; on the other hand, it also reduces the need for frequent stops to reorganize items due to loosening and scattering, effectively improving transportation efficiency and saving transportation time and labor costs. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 is a schematic diagram of the structure of the trolley provided in an embodiment of this application;

[0031] Figure 2 is an enlarged view of point A in Figure 1;

[0032] Figure 3 is an enlarged view of point B in Figure 1;

[0033] Figure 4 is a schematic diagram of the structure of the first mounting component provided in an embodiment of this application;

[0034] Figure 5 is a schematic diagram of the structure of the connector provided in the embodiment of this application being inserted into the second connection hole of the second mounting component;

[0035] Figure 6 is a schematic diagram of the structure of the connector to be inserted into the storage hole of the second mounting component according to an embodiment of this application;

[0036] Figure 7 is a schematic diagram of the assembled structure of the two trolleys provided in the embodiment of this application;

[0037] Figure 8 is an enlarged view of point C in Figure 7;

[0038] Figure 9 is a schematic diagram of two assembled trolleys carrying multiple displays provided in an embodiment of this application;

[0039] Figure 10 is a partial explosion diagram of the trolley provided in an embodiment of this application;

[0040] Figure 11 is an enlarged schematic diagram of point D in Figure 10;

[0041] Figure 12 is an enlarged view of point E in Figure 10;

[0042] The details of the reference numerals used in the above figures are as follows:

[0043] 100. Vehicle body; 110. First mounting groove; 111. First stop groove wall; 120. Second mounting groove; 121. Second stop groove wall; 130. First surface; 140. Second surface;

[0044] 200, First mounting component; 210, Connecting protrusion; 211, First connecting hole; 220, First stop surface; 230, Second stop surface;

[0045] 300, Second mounting part; 310, Connecting recess; 320, Second connecting hole; 330, Storage hole; 340, Third stop surface; 350, Fourth stop surface;

[0046] 400. Connector; 410. Connecting body; 420. First limiting protrusion; 430. Second limiting protrusion; 440. Connecting ring;

[0047] 500, connecting rope; 600, first pad; 700, second pad; 800, display screen. Detailed Implementation

[0048] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0049] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to that other element. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0050] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] In the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between the related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural.

[0052] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] As described in the background section, a trolley is a vehicle propelled by human power or other power for transporting or moving goods. In related technologies, when multiple items need to be transported simultaneously, operators first load the items onto different trolleys, then connect adjacent items, and finally push the trolleys together to complete batch transport. However, when facing uneven ground or complex conditions such as bends, it is difficult to maintain a constant distance between adjacent trolleys. This not only easily leads to loose connections or even scattering of items, but also seriously affects transport efficiency.

[0054] Referring to Figures 1 to 9, in order to solve the above-mentioned problems, according to one aspect of this application, an embodiment of this application provides a trolley and a trolley assembly. The trolley assembly includes multiple trolleys, each trolley including a trolley body 100, a first mounting member 200, a second mounting member 300, and a connector 400. The first mounting member 200 and the second mounting member 300 are disposed on the trolley body 100, and one of them is provided with a connecting protrusion 210 and the other with a connecting recess 310. When the connecting protrusion 210 of one of the two trolleys is inserted into the connecting recess 310 of the other, and the first mounting member 200 of one trolley and the second mounting member 300 of the other are connected by the connector 400, the two trolleys are connected.

[0055] In this embodiment, the trolley assembly is used to transport the display screen 800. Two adjacent display screens 800 can be connected using their own connecting locks. It is understood that the trolley assembly can also be used to transport other items, such as mechanical parts, electronic products, building materials, or packaged goods. The first mounting member 200 and the second mounting member 300 are both mounted on the trolley body 100. The connecting protrusion 210 is a connecting post, connecting block, or connecting rod, and the connecting recess 310 is a connecting groove. After the connecting protrusion 210 is inserted into the connecting recess 310, the connecting protrusion 210 maintains contact with the inner wall surface of the connecting recess 310. The connector 400 can be a screw, a cooperating magnetic block and magnet, a pin, or a buckle. Furthermore, the trolley can be used alone or in conjunction with other equipment, in addition to being part of a trolley assembly.

[0056] By employing the connecting protrusion 210 and connecting recess 310 used in this application, and further secured by the connector 400, two adjacent carts can be stably connected, thereby connecting multiple carts in a cart group. This connection structure can effectively constrain the relative position between two adjacent carts, restrict the relative movement of two adjacent carts in complex working conditions such as uneven ground or corners, and effectively improve the reliability of multiple carts operating under complex working conditions.

[0057] On the one hand, a stable connection not only reduces the risk of items falling off and ensures the safety of items during transportation; on the other hand, it also reduces the need for frequent stops to reorganize items due to loosening and scattering, effectively improving transportation efficiency and saving transportation time and labor costs.

[0058] Referring to Figures 2 to 6 and Figures 10 to 12, in one embodiment, a connecting protrusion 210 is disposed in a first mounting member 200 and has a first connecting hole 211; a connecting recess 310 is disposed in a second mounting member 300, and the second mounting member 300 also has a second connecting hole 320, which communicates with the connecting recess 310; when the connecting protrusion 210 of one of the two trolleys is inserted into the connecting recess 310 of the other, the first mounting member 200 of one of the two trolleys is connected to the second mounting member 300 of the other through a connector 400 passing through the first connecting hole 211 of one of the two trolleys and the second connecting hole 320 of the other.

[0059] In this embodiment, the connecting protrusion 210 is part of the first mounting member 200, and the first connecting hole 211 is a through hole; the connecting recess 310 is disposed on the surface of the second mounting member 300 away from the vehicle body 100 and extends toward the vehicle body 100; the second connecting hole 320 is disposed on the surface of the second mounting member 300 adjacent to the surface where the connecting recess 310 is disposed, and penetrates through the second mounting member 300. It is understood that the connecting protrusion 210 may also be disposed on the second mounting member 300, and the connecting recess 310 may be disposed on the first mounting member 200. Furthermore, when two trolleys are connected, the connector 400 may be fixedly inserted into the first connecting hole 211 and the second connecting hole 320 by an interference fit.

[0060] On the one hand, the structural design of the connecting protrusion 210 inserting into the connecting recess 310 enables precise positioning of the two trolleys during connection. Simultaneously, the design of the connector 400 passing through the first connecting hole 211 and the second connecting hole 320 after the connecting protrusion 210 is inserted into the connecting recess 310 can constrain the relative movement of the trolleys from multiple directions, thereby achieving a stable connection between the first mounting member 200 and the second mounting member 300 and ensuring stability during transportation.

[0061] On the other hand, the operation process of inserting the connecting protrusion 210 into the connecting recess 310 and then passing the connector 400 through the first connecting hole 211 and the second connecting hole 320 is simple and easy to understand. Workers can quickly complete the connection of the trolley without the need for complicated tools or professional skills, which shortens the preparation time and improves work efficiency.

[0062] Referring to Figures 3, 5, and 6, in one embodiment, the connector 400 includes a connecting body 410 and a first limiting protrusion 420, the first limiting protrusion 420 being disposed on the connecting body 410; when the connector 400 passes through the second connecting hole 320, the connecting body 410 passes through the second connecting hole 320, the first limiting protrusion 420 is located outside the second connecting hole 320, and the hole wall of the second connecting hole 320 prevents the first limiting protrusion 420 from entering the second connecting hole 320.

[0063] In this embodiment, the first limiting protrusion 420 is a limiting protrusion ring, and is arranged circumferentially around the connecting body 410. The first limiting protrusion 420 and the connecting body 410 are coaxially arranged and are integrally formed. The diameter of the second connecting hole 320 is smaller than the outer diameter of the first limiting protrusion 420. Furthermore, when the connector 400 passes through the second connecting hole 320, the connecting body 410 can have a clearance fit with the second connecting hole 320 or an interference fit with the second connecting hole 320.

[0064] On the one hand, the first limiting protrusion 420 and the hole wall of the second connecting hole 320 cooperate to form a limiting structure, which effectively prevents the connector 400 from disengaging from the second connecting hole 320, ensuring that the two adjacent trolleys always maintain a stable connection during transportation, and improving the reliability of transportation operations.

[0065] On the other hand, when installing the connector 400, the operator does not need to precisely control the insertion depth of the connector 400. The operator only needs to insert the connector body 410 into the second connector hole 320 until the first limiting protrusion 420 abuts against the outer side of the hole wall of the second connector hole 320. This will enable the connector 400 to be accurately positioned and quickly installed, reducing the difficulty of operation and improving the efficiency of trolley connection.

[0066] Referring to Figures 3, 5, and 6, in one embodiment, the connector 400 further includes a second limiting protrusion 430 with an elastic structure. The second limiting protrusion 430 is disposed on the connecting body 410 and is spaced apart from the first limiting protrusion 420 along the length direction of the connecting body 410. When the connector 400 passes through the second connecting hole 320, the second limiting protrusion 430 is located outside the second connecting hole 320, and the hole wall of the second connecting hole 320 prevents the second limiting protrusion 430 from entering the second connecting hole 320.

[0067] In this embodiment, the connector 400 is a quick-release pin, the second limiting protrusion 430 is a spring-loaded limiting protrusion, and the outer peripheral surface of the connecting body 410 is provided with a mounting groove. The second limiting protrusion 430 is slidably disposed within the mounting groove along the radial direction of the connecting body 410, and can be moved outside or inside the mounting groove. It is understood that the second limiting protrusion 430 can also be a silicone or rubber post. When the connector 400 passes through the second connecting hole 320, the second limiting protrusion 430 and the first limiting protrusion 420 are located on opposite sides of the second mounting member 300.

[0068] On the one hand, the first limiting protrusion 420 and the second limiting protrusion 430 form a double limiting structure. During the transportation of the trolley, even if one of the first limiting protrusion 420 and the second limiting protrusion 430 becomes slightly loose due to vibration or other reasons, the other can still effectively limit the connector 400, further reducing the risk of the connector 400 coming out of the second connecting hole 320 and further improving the stability of the connection between two adjacent trolleys.

[0069] On the other hand, the second limiting protrusion 430 of the elastic structure can automatically adapt to the position and size of the connecting hole during installation, without the need for complicated calibration and adjustment steps. Simply insert the connector 400 into the second connecting hole 320, and the first limiting protrusion 420 and the second limiting protrusion 430 will automatically engage on both sides of the hole wall of the second connecting hole 320, achieving rapid installation and improving the efficiency of trolley assembly. At the same time, the second limiting protrusion 430 of the elastic structure can also achieve rapid disassembly without complicated disassembly tools or steps. Simply apply a large pulling force to the connector 400 to pull it out of the second connecting hole 320.

[0070] Referring to Figures 3, 5 and 6, in one embodiment, the trolley further includes a connecting rope 500, which is connected to the connector 400 and the trolley body 100.

[0071] In this embodiment, the connector 400 is connected to the vehicle body 100 via a connecting rope 500; specifically, the connector 400 also has a connecting ring 440, the first end of the connecting rope 500 is sleeved on the connecting ring 440, and the second end of the connecting rope 500 is fixedly connected to the vehicle body 100.

[0072] The connecting rope 500 connects the connector 400 to the cart body 100, preventing the connector 400 from coming loose from the connection hole and being lost during use due to various reasons (such as vibration or impact). This ensures that the connector 400 is always compatible with the cart body 100 for future use. Simultaneously, when the connector 400 is subjected to significant external force, the connecting rope 500 can share some of the tension, providing a buffering effect and preventing damage or detachment due to excessive stress. This effectively improves the reliability of the connection between adjacent carts.

[0073] Referring to Figures 3, 5, and 6, in one embodiment, the connecting rope 500 is detachably connected to the vehicle body 100. In this embodiment, the connecting rope 500 is detachably connected to the vehicle body 100 via a fastener, which is a fastening bolt or fastening screw. The fastener connects the connecting rope 500 to the vehicle body 100 by applying pressure to the second end of the connecting rope 500 through its head. It is understood that the fastener can also be a fastening pin. Furthermore, the connecting rope 500 can also be detachably connected to the vehicle body 100 by being sleeved on the fastener. In this case, the fastener can be a fastening post, fastening nail, or fastening rod fixedly installed on the vehicle body 100.

[0074] If the connecting rope 500 malfunctions, the damaged connecting rope 500 can be quickly removed and replaced with a new one by disassembling the fasteners. This eliminates the need for complicated tools and lengthy procedures, greatly shortening maintenance time, improving the efficiency of the trolley, and reducing work delays caused by equipment failure.

[0075] Referring to Figures 5 and 6, in one embodiment, the second mounting member 300 is further provided with a storage hole 330, and the connector 400 can be inserted into the storage hole 330.

[0076] In this embodiment, the storage hole 330 is a through hole and is located on one side of the second connecting hole 320. When the connector 400 is not in use, it can be inserted into the storage hole 330, giving the connector 400 a fixed storage location. This avoids problems such as loss or damage caused by random placement, and helps maintain a clean and orderly workplace, thereby improving work efficiency.

[0077] Meanwhile, the storage hole 330 provides a relatively stable and safe storage environment for the connector 400, which can prevent the connector 400 from being damaged by external forces such as collisions and scratches during transportation or idleness, and effectively extend the service life of the connector 400.

[0078] Referring to Figures 2 and 8, in one embodiment, the first mounting member 200 is detachably mounted on the vehicle body 100.

[0079] In this embodiment, the first mounting component 200 is detachably mounted on the vehicle body 100 by fasteners, which are fastening bolts or fastening screws; it is understood that the fasteners may also be fastening pins. When the first mounting component 200 or the connecting protrusion 210 malfunctions or is damaged, maintenance personnel can directly remove it from the vehicle body 100 for individual repair or replacement, without the need for large-scale disassembly of the entire vehicle body 100, thus improving the accuracy and efficiency of maintenance and reducing maintenance costs.

[0080] In addition, to enhance the connection stability between the first mounting component 200 and the vehicle body 100, the trolley also includes a first pad 600, which contacts the vehicle body 100. The first pad 600 is provided with a through hole for fasteners to pass through. The fasteners apply a pressing pressure toward the vehicle body 100 to the first pad 600 by contacting the first pad 600.

[0081] Referring to Figures 4, 8 and 11, in one embodiment, the vehicle body 100 is provided with a first mounting groove 110, and a portion of the structure of the first mounting member 200 is embedded in the first mounting groove 110. The first mounting groove 110 has a first stop groove wall 111, which stops the first mounting member 200 from continuing to move toward the first mounting groove 110 by contacting the first mounting member 200.

[0082] In this embodiment, the first mounting member 200 has a first stop surface 220, and the first stop groove wall 111 blocks the first mounting member 200 from continuing to move into the first mounting groove 110 by contacting the first stop surface 220.

[0083] On the one hand, the first mounting groove 110 not only provides a clear mounting position for the first mounting component 200, allowing some of its structure to be precisely embedded into the first mounting groove 110, thus improving installation efficiency and accuracy, but also effectively reduces the overall size of the trolley.

[0084] On the other hand, the first stop groove wall 111 prevents the first mounting member 200 from being overly embedded in the first mounting groove 110, and also restricts the lateral and longitudinal movement of the first mounting member 200 during use. Since the first mounting member 200 is accurately restricted in the first mounting groove 110, its connection with the vehicle body 100 is more stable, which can effectively resist displacement caused by external forces, vibration or impact, effectively enhance the stability of the connection between the first mounting member 200 and the vehicle body 100, and reduce the possibility of failure due to loose connection.

[0085] In addition, the first mounting member 200 also has a second stop surface 230, which is located on the side of the first stop surface 220 away from the connecting protrusion 210 and is parallel to the first stop surface 220; when a part of the structure of the first mounting member 200 is embedded in the first mounting groove 110, the second stop surface 230 keeps in contact with the groove wall of the first mounting groove 110.

[0086] Referring to Figures 3 and 8, in one embodiment, the second mounting member 300 is detachably mounted on the vehicle body 100.

[0087] In this embodiment, the second mounting component 300 is detachably mounted on the vehicle body 100 by fasteners, which are fastening bolts or fastening screws; it is understood that the fasteners may also be fastening pins. When the second mounting component 300 or the connecting recess 310 malfunctions or is damaged, maintenance personnel can directly remove it from the vehicle body 100 for individual repair or replacement, without the need for large-scale disassembly of the entire vehicle body 100, thus improving the accuracy and efficiency of maintenance and reducing maintenance costs.

[0088] In addition, to enhance the connection stability between the second mounting component 300 and the vehicle body 100, the trolley also includes a second pad 700. The second pad 700 contacts the vehicle body 100, and the second pad 700 is provided with a through hole for fasteners to pass through. The fasteners apply a pressing pressure toward the vehicle body 100 to the second pad 700 by contacting the second pad 700.

[0089] Referring to Figures 3, 8, and 12, in one embodiment, the vehicle body 100 is provided with a second mounting groove 120, and a portion of the structure of the second mounting member 300 is embedded in the second mounting groove 120. The second mounting groove 120 has a second stop groove wall 121, which stops the second mounting member 300 from continuing to move toward the second mounting groove 120 by contacting the second mounting member 300.

[0090] In this embodiment, the second mounting member 300 has a third stop surface 340, and the second stop groove wall 121 prevents the second mounting member 300 from continuing to move into the second mounting groove 120 by contacting the third stop surface 340.

[0091] On the one hand, the second mounting groove 120 not only provides a clear mounting position for the second mounting component 300, allowing some of its structure to be precisely embedded within the second mounting groove 120, thus improving installation efficiency and accuracy, but also effectively reduces the overall size of the trolley.

[0092] On the other hand, the second stop groove wall 121 prevents the second mounting member 300 from being overly embedded in the second mounting groove 120, and also restricts the lateral and longitudinal movement of the second mounting member 300 during use. Since the second mounting member 300 is accurately confined within the second mounting groove 120, its connection with the vehicle body 100 is more stable, and it can effectively resist displacement caused by external forces, vibrations or impacts, effectively enhancing the stability of the connection between the second mounting member 300 and the vehicle body 100, and reducing the possibility of failure due to loose connection.

[0093] In addition, the second mounting member 300 also has a fourth stop surface 350, which is located on the side of the third stop surface 340 away from the connecting recess 310 and is parallel to the third stop surface 340; when a part of the structure of the second mounting member 300 is embedded in the second mounting groove 120, the fourth stop surface 350 remains in contact with the groove wall of the second mounting groove 120.

[0094] Referring to Figures 1 and 10, in one embodiment, the vehicle body 100 has a first surface 130 and a second surface 140, the first surface 130 and the second surface 140 being arranged adjacent to each other or opposite to each other; a first mounting member 200 is disposed on the first surface 130, and a second mounting member 300 is disposed on the second surface 140.

[0095] When connecting multiple trolleys, firstly, the connecting protrusion 210 of the first mounting member 200 on the first surface 130 of one trolley is inserted into the connecting recess 310 of the second mounting member 300 on the second surface 140 of the adjacent trolley to complete the initial positioning. Then, the two trolleys are securely connected using the connector 400. Since the first surface 130 and the second surface 140 are adjacent or opposite each other, after the connecting protrusion 210 of the first mounting member 200 on the first surface 130 of a connected trolley is inserted into the connecting recess 310 of the second mounting member 300 on the second surface 140 of a trolley, the connecting recess 310 of the second mounting member 300 on the second surface 140 of the connected trolley can also be inserted by the connecting protrusion 210 of the first mounting member 200 on the first surface 130 of another trolley. Then, the connector 400 securely connects the connected trolley to another trolley. Repeating the above connection operation allows multiple trolleys to be connected sequentially end-to-end.

[0096] Referring to Figures 1 and 10, in one embodiment, the first surface 130 and the second surface 140 are arranged opposite to each other. When multiple connected trolleys are pushed forward, the pushing force from the front or the pulling force from the rear can be evenly distributed to the opposite surfaces of each trolley through the oppositely arranged first mounting member 200 and second mounting member 300, avoiding excessive local stress at the trolley connection due to uneven force distribution, thereby improving the stability of the connection and reducing the risk of damage to the connection. At the same time, the oppositely arranged first surface 130 and second surface 140 provide symmetrical space for the arrangement of the first mounting member 200 and the second mounting member 300, which facilitates design and manufacturing.

[0097] Furthermore, the opposing arrangement of the first surface 130 and the second surface 140 makes the connection operation more intuitive and convenient; the operator can stand between the two trolleys and simultaneously see the first mounting part 200 and the second mounting part 300, facilitating accurate insertion of the connecting protrusion 210 into the connecting recess 310. Moreover, since the first surface 130 and the second surface 140 are arranged opposite each other, it is not necessary to frequently walk around the trolleys to find the installation position during the connection process, reducing the difficulty of operation and improving the connection efficiency.

[0098] Referring to Figures 1 and 10, in one embodiment, two first mounting members 200 and two second mounting members 300 are provided. The two first mounting members 200 are respectively provided on the first surface 130 and the second surface 140, and the two second mounting members 300 are respectively provided on the first surface 130 and the second surface 140. The line connecting the two first mounting members 200 intersects with the line connecting the two second mounting members 300.

[0099] In this embodiment, two first mounting members 200 are respectively disposed at two corners of the vehicle body 100 and are arranged diagonally; two second mounting members 300 are respectively disposed at two corners of the vehicle body 100 and are arranged diagonally. It can be understood that the line connecting the two first mounting members 200 and the line connecting the two second mounting members 300 can also be parallel.

[0100] When the two trolleys are connected, the connecting protrusion 210 of the first mounting member 200 on the first surface 130 of the first trolley is inserted into the connecting recess 310 of the second mounting member 300 on the second surface 140 of the second trolley, and at the same time, the connecting protrusion 210 of the first mounting member 200 on the second surface 140 of the second trolley is inserted into the connecting recess 310 of the second mounting member 300 on the first surface 130 of the first trolley.

[0101] The two first mounting components 200 and two second mounting components 300 effectively enhance the connection strength and stability of the two trolleys. Simultaneously, the lines connecting the two first mounting components 200 and the two second mounting components 300 intersect, a structural design that greatly restricts the relative rotational freedom of the two trolleys after connection. Since each mounting component hinders the rotation of the trolley, the combined constraint effect of multiple mounting components makes relative rotation between the trolleys extremely difficult, further enhancing the stability of the connection. This ensures that the trolleys maintain a relatively fixed position during transportation, preventing items from falling or the trolleys from being damaged due to mutual rotation.

[0102] In summary, implementing the trolley and trolley assembly provided in this embodiment has at least the following beneficial technical effects: by using the connecting protrusion 210 and connecting recess 310 used in this application, and then fastening them with the connector 400, two adjacent trolleys can be stably connected, thereby connecting multiple trolleys in the trolley assembly; this connection structure can effectively constrain the relative position between two adjacent trolleys, restrict the relative movement of two adjacent trolleys in complex working conditions such as uneven ground or corners, and effectively improve the reliability of multiple trolleys operating in complex working conditions.

[0103] On the one hand, a stable connection not only reduces the risk of items falling off and ensures the safety of items during transportation; on the other hand, it also reduces the need for frequent stops to reorganize items due to loosening and scattering, effectively improving transportation efficiency and saving transportation time and labor costs.

[0104] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A trolley assembly, characterized in that, The system includes multiple trolleys, each trolley comprising a trolley body, a first mounting member, a second mounting member, and a connector. The first mounting member and the second mounting member are disposed on the trolley body, one of which has a connecting protrusion and the other has a connecting recess. When the connecting protrusion of one trolley is inserted into the connecting recess of the other trolley, and the first mounting member of one trolley and the second mounting member of the other trolley are connected through the connector, the two trolleys are connected.

2. The trolley assembly according to claim 1, characterized in that, The connecting protrusion is disposed on the first mounting member and has a first connecting hole; the connecting recess is disposed on the second mounting member, and the second mounting member also has a second connecting hole, which communicates with the connecting recess; when the connecting protrusion of one of the two trolleys is inserted into the connecting recess of the other, the first mounting member of one of the two trolleys passes through the connecting member into the first connecting hole of one of the two trolleys and the second connecting hole of the other, and is connected to the second mounting member of the other.

3. The trolley assembly according to claim 2, characterized in that, The connector includes a connecting body and a first limiting protrusion, the first limiting protrusion being disposed on the connecting body; when the connector is inserted into the second connecting hole, the connecting body is inserted into the second connecting hole, the first limiting protrusion is located outside the second connecting hole, and the hole wall of the second connecting hole prevents the first limiting protrusion from entering the second connecting hole.

4. The trolley assembly according to claim 3, characterized in that, The connector further includes a second limiting protrusion that is an elastic structure. The second limiting protrusion is disposed on the connector body and is spaced apart from the first limiting protrusion along the length direction of the connector body. When the connector is inserted into the second connecting hole, the second limiting protrusion is located outside the second connecting hole, and the hole wall of the second connecting hole prevents the second limiting protrusion from entering the second connecting hole.

5. The trolley assembly according to claim 2, characterized in that, The trolley also includes a connecting rope, which is connected to the connector and the trolley body.

6. The trolley assembly according to claim 5, characterized in that, The connecting rope is detachably connected to the vehicle body.

7. The trolley assembly according to claim 1, characterized in that, The first mounting member is detachably mounted on the vehicle body; and / or, the vehicle body is provided with a first mounting groove, a portion of the structure of the first mounting member is embedded in the first mounting groove, the first mounting groove has a first stop groove wall, the first stop groove wall stops the first mounting member from continuing to move toward the first mounting groove by contacting the first mounting member; and / or, the second mounting member is detachably mounted on the vehicle body; and / or, the vehicle body is provided with a second mounting groove, a portion of the structure of the second mounting member is embedded in the second mounting groove, the second mounting groove has a second stop groove wall, the second stop groove wall stops the second mounting member from continuing to move toward the second mounting groove by contacting the second mounting member; and / or, the second mounting member is provided with a storage hole, and the connector can pass through the storage hole.

8. The trolley assembly according to any one of claims 1 to 7, characterized in that, The vehicle body has a first surface and a second surface, which are arranged adjacent to or opposite to each other; the first mounting member is disposed on the first surface, and the second mounting member is disposed on the second surface.

9. The trolley assembly according to claim 8, characterized in that, The first surface and the second surface are disposed opposite to each other; and / or, there are two first mounting members and two second mounting members, with the two first mounting members disposed on the first surface and the second surface respectively, and the two second mounting members disposed on the first surface and the second surface respectively, and the line connecting the two first mounting members intersecting the line connecting the two second mounting members.

10. A trolley, characterized in that, The trolley is the trolley according to any one of claims 1 to 9.

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