Trolley suitable for storing containers

Abstract

This application discloses a trolley suitable for storage containers, comprising: a walking assembly including rotating wheels; a base assembly including a base plate connected to the walking assembly, and the base plate assembly being at least partially disposed on the upper side of the walking assembly; the trolley further comprising: a first support plate configured to be connected to the upper side of the base plate via at least one storage container; and a cover plate connected to the first support plate; wherein the first support plate has an opening formed therein for accommodating at least a portion of the cover plate, the area above the base plate is defined as a first storage space, the area above the first support plate is defined as a second storage space, and the opening connects the first storage space and the second storage space. By providing an opening on the first support plate, the versatility of the trolley's functions is increased.

Description

Technical Field

[0001] This application relates to a trolley suitable for storage containers. Background Technology

[0002] In one related technology, when users go to work, they generally need to carry tools and other items. To facilitate carrying and moving these tools, users typically use storage boxes to store them. Chargers, battery packs, tool accessories, and other tools can all be placed in the storage box. However, when all the tools are placed in the storage box, it becomes very heavy during transport, making it difficult for users to move. Therefore, users often need to use a trolley to move the storage box. In some workplaces, users may need long, narrow tools or long, narrow pieces to be cut. Moving or retrieving these items is inconvenient, so a trolley is needed to facilitate the transport of such items.

[0003] This section provides background information related to this application, which is not necessarily prior art. Summary of the Invention

[0004] One object of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, one object of this application is to provide a versatile and user-friendly trolley.

[0005] To achieve the above objectives, this application adopts the following technical solution: a trolley suitable for storage containers, comprising: a walking assembly including rotating wheels; a base plate assembly including a base plate connected to the walking assembly, and the base plate assembly being at least partially disposed on the upper side of the walking assembly; the trolley further comprising: a first support plate configured to be connected to the upper side of the base plate via at least one storage container; a cover plate connected to the first support plate; wherein, an opening is formed on the first support plate to accommodate at least a portion of the cover plate, the area above the base plate is defined as a first storage space, the area above the first support plate is defined as a second storage space, and the opening connects the first storage space and the second storage space.

[0006] In some embodiments, a pull rod assembly connected to the base plate assembly is further included. The pull rod assembly includes a pull rod connected to the base plate and configured to be detachably fixedly connected to the first support plate. The trolley has a first operating mode and a second operating mode, which can be switched between each other. When the trolley is in the first operating mode, the pull rod is connected to the first support plate and cooperates with a storage container to connect the first support plate to the base plate. When the trolley is in the second operating mode, the first support plate and the base plate are connected through two storage containers, and the pull rod is separated from the first support plate.

[0007] In some embodiments, a groove is formed on the base plate to accommodate the pull rod, and when the trolley is in a second operating mode, the pull rod is configured to be retracted into the groove.

[0008] In some embodiments, the base plate and the tie rod assembly are detachably connected.

[0009] In some embodiments, when the trolley is in a first operating mode, the trolley is configured to allow items to be placed on the base plate, with the items allowed to pass at least partially through the opening.

[0010] In some embodiments, a stepped surface is formed on the inner wall of the opening, the stepped surface being configured to contact the cover plate so that the cover plate is at least partially received within the first support plate.

[0011] In some embodiments, the opening in the first support plate is configured to accommodate one or more cover plates.

[0012] In some embodiments, the cover plate has at least a first use state and a second use state relative to the first support plate. When the cover plate is in the first use state, the cover plate is connected to the first support plate, and when the cover plate is in the second use state, the cover plate is separated from the first support plate.

[0013] In some embodiments, the cover plate includes at least a first type of cover plate, which is connected to or forms one or more openings that can connect to a first storage space and a second storage space.

[0014] In some embodiments, the cover plate further includes one or more second-type cover plates, which are configured to allow the closure of one or more openings.

[0015] In some embodiments, the cover plate and the first support plate are connected by one or a combination of bolted connections, snap-fit ​​connections, and pin connections.

[0016] In some embodiments, the trolley further includes a locking element, a stepped surface is formed on the inner wall of the opening, a cover plate is placed on the stepped surface, and the locking element passes through the cover plate and connects to the stepped surface to fix the cover plate to the first support plate.

[0017] In some embodiments, the trolley also includes an accessory box for placing items, the accessory box being configured to snap into an opening.

[0018] In some embodiments, a plurality of openings are formed on the first support plate, each of which can accommodate a cover plate.

[0019] In some embodiments, the maximum length of the opening in the front-to-back direction is greater than or equal to 85 mm.

[0020] In some embodiments, the maximum length of the opening in the left-right direction is greater than or equal to 85 mm.

[0021] In some embodiments, the first support plate is connected to the base plate via two or more storage containers.

[0022] In some embodiments, the opening is configured to allow two or more cover plates to be placed overlapping within the opening.

[0023] In some embodiments, the trolley includes a second type of cover, the top surface of which is substantially flush with the bottom surface of the first support plate when the second type of cover is installed on the opening.

[0024] A trolley suitable for storage containers includes: a walking assembly including rotating wheels; a base assembly including a base plate connected to the walking assembly, and the base plate assembly being at least partially disposed on the upper side of the walking assembly; the trolley further includes: a first support plate configured to be connected to the upper side of the base plate via at least one storage container, the first support plate having an opening formed thereon.

[0025] A trolley suitable for storage containers includes: a walking assembly including rotating wheels; a base assembly including a base plate connected to the walking assembly, and the base plate assembly being at least partially disposed on the upper side of the walking assembly; the trolley further includes: support legs connected to the base plate, and the support legs being at least partially disposed on the upper side of the base plate; and a first support plate connected to the base plate via the support legs; wherein the area above the base plate is defined as a first storage space, the area above the first support plate is defined as a second storage space, and an opening is formed on the first support plate communicating with the first storage space and the second storage space.

[0026] A trolley suitable for storage containers includes: a walking assembly including rotating wheels; a base assembly including a base plate connected to the walking assembly, and the base plate assembly being at least partially disposed on the upper side of the walking assembly; the trolley further includes: a first support plate configured to be connected to the upper side of the base plate via at least one storage container; wherein the area above the base plate is defined as a first storage space, the area above the first support plate is defined as a second storage space, and an opening is formed on the first support plate communicating with the first storage space and the second storage space.

[0027] The advantage of this application is that by providing an opening on the first support plate, the versatility of the trolley's functions is increased, making it more convenient for users to use. Attached Figure Description

[0028] Figure 1 This is a schematic diagram illustrating one use of the trolley in this application; Figure 2 yes Figure 1 A schematic diagram of the cart from another perspective; Figure 3 yes Figure 1The diagram shows the use of the trolley without a cover. Figure 4 yes Figure 1 The illustration shows a cart with no items placed on it. Figure 5 yes Figure 4 A schematic diagram showing the installation of long, narrow items and accessory boxes via a first-type cover in the trolley shown; Figure 6 yes Figure 4 A schematic diagram showing the accessory box installed in the trolley via the first type of cover; Figure 7 yes Figure 4 The diagram shows the use of a first-type cover plate and a second-type cover plate in conjunction with the trolley shown. Figure 8 yes Figure 4 The diagram shows the use of a first-type cover plate and a second-type cover plate in conjunction with the trolley shown. Figure 9 yes Figure 4 A schematic diagram showing the first type of cover plate being installed onto the first support plate in the trolley shown; Figure 10 yes Figure 4 A schematic diagram showing two second-type cover plates mounted on the first support plate in the trolley; Figure 11 yes Figure 4 A schematic diagram showing the third type of cover plate installed on the first support plate in the trolley shown; Figure 12 yes Figure 4 The exploded view of the trolley and cover shown shows that the cover is connected to the first support plate by screws. Figure 13 yes Figure 4 The exploded view of the trolley and cover shown shows that the cover and the first support plate are connected by a snap-fit ​​method. Figure 14 yes Figure 1 A schematic diagram showing multiple cover plates installed on the first support plate of the trolley shown; Figure 15 yes Figure 1 A schematic diagram showing multiple cover plates installed on the first support plate of the trolley shown; Figure 16 yes Figure 1 A schematic diagram showing multiple cover plates installed on the first support plate of the trolley shown; Figure 17 This is a schematic diagram of a trolley that connects the first support plate to the base plate via two storage containers; Figure 18 This is a schematic diagram of a trolley in which the first support plate is connected to the base plate via support legs and pull rods; Figure 19This is a schematic diagram of a trolley where the first support plate is connected to the base plate via support legs. Detailed Implementation

[0029] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0030] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0031] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0032] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0033] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0034] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0035] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0036] like Figure 1 The diagram shows a trolley 100, suitable for transporting and placing storage containers 40. From a work perspective, when users go to work, they generally need to carry items 60 to be used. To facilitate carrying and moving these items 60, users typically use storage containers 40 to store them. Users can place, suspend, or fix storage containers 40 or tools onto the trolley 100. This allows users to use the trolley 100 to transport storage containers 40 to the work site, place tools at the work site, install a workbench on the trolley 100 to serve as a temporary workbench for placing machines, or set up a temporary office space.

[0037] Here, item 60 refers to one or more of the following: accessories, tools, charging devices, power supply devices, lighting devices, accessory boxes / bags, tool boxes, auxiliary tools, garden tools, etc.

[0038] To clearly describe the structure and working principle of the trolley 100, the following definitions are provided: Figure 1 The terms up, down, front, back, left, and right are shown. It should be noted that, unless otherwise specified, "up," "back," "left," and "right" in the following text refer to... Figure 1 The state shown is when it is left to stand.

[0039] like Figures 1 to 5 The trolley 100 shown includes a base plate assembly 10, a first support assembly 50, a walking assembly 20, and a pull rod assembly 31 30.

[0040] The walking assembly 20 is connected to the base plate assembly 10. The walking assembly 20 is positioned on the base plate assembly 10 in the vertical direction. The walking assembly 20 includes one or more wheels 21, enabling the base plate assembly 10 to move relative to the ground. The user can move the base plate assembly 10 by pushing or pulling the lever assembly 31 30 to rotate the wheels 21 relative to the ground. It should be noted that the aforementioned ground can also refer to other contact surfaces used to place the trolley 100, and is not limited to the earth.

[0041] The base plate assembly 10 is at least partially mounted on the walking assembly 20. The base plate assembly 10 includes a base plate 11, and wheels 21 are generally mounted on the lower end of the base plate 11. The base plate 11 is used to stack storage containers 40, accessories, tools, charging devices, power supply devices, lighting devices, etc. Alternatively, the accessories, tools, charging devices, power supply devices, and lighting devices can be placed inside the storage container 40, and then the storage container 40 can be placed on the base plate 11.

[0042] The pull rod assembly 30 is connected to the base plate assembly 10. The pull rod assembly 30 includes a pull rod 31, which includes a first connecting rod and a second connecting rod that are oppositely arranged and extend substantially in a straight line, and a gripping rod connecting one end of the first connecting rod and the second connecting rod. The user grips the gripping rod to drive the trolley 100 to move. The other ends of the first connecting rod and the second connecting rod are pivotally connected to the base plate 11. The pull rod 31 is rotatably connected to the base plate 11. During the rotation of the pull rod 31, it has at least a retracted state and a used state. An upper groove is formed on the base plate 11. When the pull rod 31 is in the retracted state, the pull rod 31 is retracted into the upper groove and the pull rod 31 is lower than the upper surface of the base plate 11. When the pull rod 31 is in the used state, the pull rod 31 is at a certain angle to the base plate 11. The specific angle between the pull rod 31 and the base plate 11 is not limited here. The pull rod 31 can rotate infinitely or be adjustable in gear. In this embodiment, the pull rod 31 and the base plate 11 can rotate infinitely, meaning the user can rotate the pull rod 31 according to their needs. In another implementation, the pull rod 31 can also be detached from the base plate 11, meaning the pull rod 31 can be removed from the base plate 11. This can also be understood as the base plate assembly 10 and the walking assembly 20 working together to form a flatbed cart.

[0043] The first support assembly 50 is disposed on the upper side of the base plate assembly 10. The first support assembly 50 includes a first support plate 51, which is disposed on the upper end of the base plate 11. The first support plate 51 has at least three states relative to the base plate 11: a first state, a second state, and a third state. When the first support plate 51 is in the first state, it is connected to the base plate 11 via at least one storage box. When the first support plate 51 is in the second state, it is directly mounted to the base plate 11. When the first support plate 51 is in the third state, it is separated from the base plate 11. This configuration allows the user to select different states according to the actual working conditions, greatly increasing the versatility of the trolley 100's functions. Alternatively, the user can also install a second support assembly, a third support assembly, etc., on the first support plate 51 via the storage container 40. Furthermore, when the first support plate 51 is in any of its states, it can be used in conjunction with the pull rod 31 in each of the three states relative to the base plate 11. This configuration allows the user to select the appropriate state based on the current working conditions, facilitating operation. In other words, the trolley 100 has multiple operating modes. The trolley 100 has a first working mode and a second working mode, which can be switched by the user. The user can switch to the working mode suitable for the current scenario based on the current work situation. When the trolley 100 is in the first working mode, the pull rod 31 is fixedly connected to the first support plate 51. At this time, the pull rod 31 cooperates with the storage container to space the first support plate 51 and the base plate 11. When the trolley 100 is in the second working mode, the first support plate 51 and the base plate 11 are connected through two storage containers. At this time, the pull rod 31 is separated from the first support plate 51.

[0044] In one embodiment where the first support component 50 is connected to the base plate component 10, the first support component 50 is connected to the top of the base plate component 10 via a pull rod 31 and a storage container 40. The first support component 50 and the pull rod 31 component 30 can be connected using one or more of the following methods: pin, snap, screw, or plug. The specific structure of the first connecting component is not limited here, as long as it can securely connect the first connecting rod and the second connecting rod to the first support plate 51. In one specific embodiment, the first support plate 51 and the pull rod 31 component 30 are connected by a pin. That is, the trolley 100 also includes a first connecting component, which connects the pull rod 31 component 30 and the first support component 50, and securely connects the pull rod 31 and the first support plate 51. This can be understood as the user being able to install the first support plate 51 on top of the base plate 11 using the first connecting component and the storage container 40. To ensure the stability of the connection between the pull rod 31 and the first support plate 51, the first connecting component can be installed on both the first and second connecting rods. Taking the first connecting component installed on the first connecting rod as an example... The first connecting assembly includes a first connector, a second connector, and a fastener. The first connector is connected to or formed on the first connecting rod, and the second connector is connected to or formed on the first support plate 51. The fastener is used to keep the first connector and the second connector relatively fixed, thereby keeping the first connecting rod and the first support plate 51 relatively fixed. Specifically, the first connector and the second connector have corresponding through holes. The user passes the fastener through the through holes on the first connector and the second connector, thereby keeping the first connecting rod and the first support plate 51 relatively fixed.

[0045] The storage container 40 and the first support plate 51 are connected by a variety of detachable methods. The storage container 40 and the first support plate 51 can be connected by one or a combination of threaded connection, snap-fit ​​connection, and pin connection. As a feasible implementation, the storage container 40 and the first support plate 51 are connected by two sets of mounting components 56. The two mounting components 56 are respectively arranged on both sides of the storage container 40 and are symmetrically arranged. Taking one of the mounting components 56 as an example, the mounting component 56 includes a spring-loaded latch 561 and a positioning component 562. The latch 561 is connected to the upper top wall of the storage container 40, and the positioning component 562 is connected to the lower end of the first support plate 51. When the user needs to connect the first support plate 51 to the storage container 40, the first support plate 51 is placed downwards, so that the latch 561 and the positioning component 562 are locked, thereby connecting the first support plate 51 to the storage container 40. When the user needs to remove the first support plate 51 from the storage container 40, the latch 561 is simply pushed outwards to separate the latch 561 from the positioning component 562, and then the first support plate 51 can be removed from the storage container 40. Similarly, the connection structure between the storage container 40 and the base plate 11 can also be the same as that between the storage container 40 and the first support plate 51.

[0046] like Figures 5 to 16As shown, an opening 52 is connected to or formed on the first support plate 51. When the first support plate 51 is in the first state, it is connected to the top of the base plate 11 via a pull rod 31 and a storage container 40. That is, a space for placing items 60 is formed above both the base plate 11 and the first support plate 51, defined as the first storage space 12 and the second storage space 13 respectively. The opening 52 on the first support plate 51 can penetrate through the first storage space 12 and the second storage space 13. When users use the trolley 100 to transport, move, or place items 60, they often encounter long, narrow tools, parts to be cut, or parts to be processed, such as long-handled sanders, vacuum cleaners, lawn mowers, hair dryers, spirit levels, pipes, and wood. These long, narrow items 60 often cause significant inconvenience during transportation, handling, or placement. Users typically prepare other transportation tools for these items, increasing their burden and affecting their work efficiency. By creating an opening 52 on the first support plate 51, the first storage space 12 and the second storage space 13 are connected. This allows the user to directly insert a long, narrow item 60 into the opening 52. The bottom of the item 60 abuts against the base plate 11, while the upper end of the item 60 is restricted from movement by the opening 52. This allows the user to transport the item 60 directly using the trolley 100, avoiding the need for additional transport tools, simplifying operation, and increasing the versatility of the trolley 100. To prevent the bottom of the item 60 from moving freely, the user can place an open-top toolbox at the lower end corresponding to the opening 52. This restricts the movement of the lower end of the item 60 within the space created by the toolbox, preventing the item 60 from detaching from the trolley 100.

[0047] In another implementation, opening 52 can also be used with an open-top storage bag. The user places the bottom of the storage bag on the base plate 11 and then connects the opening to opening 52. The storage bag is generally made of flexible material. By connecting the opening of the storage bag to opening 52, the opening of the storage bag will always be open, allowing the user to easily place items such as 60 directly into the storage bag. This avoids the user having to stop their work and open the opening of the storage bag every time they want to use it, thus reducing work efficiency. The storage bag can be made of any flexible material. For example, it can be made of plastic or non-woven fabric.

[0048] In summary, by setting an opening 52 on the trolley 100, the versatility of the trolley 100's functions can be increased on the basis of its original functions, which greatly facilitates the use of the trolley 100. At the same time, it avoids the need for users to prepare more types of transportation tools to transport the required tools to the work site, thus saving users' transportation costs.

[0049] The opening 52 can be set at any position on the first support plate 51.

[0050] Multiple openings 52 can be provided on the first support plate 51.

[0051] An opening 54 is formed on the first support plate 51, and the maximum length of the opening 52 in the front-to-back direction is greater than or equal to 85 mm.

[0052] An opening 54 is formed on the first support plate 51, and the maximum length of the opening 52 in the left-right direction is greater than or equal to 85 mm.

[0053] The shape of the opening 52 can be any shape, such as roughly circular, square, polygonal, or even irregular. The shape of the opening 52 is not limited here.

[0054] In one feasible implementation, the opening 52 is essentially quadrilateral, with a cross-section of approximately 7000 square millimeters. This provides the user with sufficient space to place long, narrow items 60.

[0055] The trolley 100 also includes at least one cover 53, which is configured to be at least partially accommodated within the first support plate 51. The trolley 100 includes multiple covers 53 of different types that can be accommodated within an opening 52. The opening 52 can also accommodate multiple covers 53 of different types simultaneously. Different types of covers 53 can perform different functions, meaning the user can select the appropriate type of cover 53 based on the current working conditions.

[0056] For ease of description, cover plates 531, 532, and 533 are defined herein. Unless otherwise specified, cover plate 53 may encompass all types of cover plates 53 described herein.

[0057] The cover plate 53 has at least a first usage state and a second usage state relative to the first support plate 51. When the cover plate 53 is in the first usage state, it is configured to be received within the opening 52 of the first support plate 51. When the cover plate 53 is in the second usage state, it is separated from the first support plate 51. The user can switch between the first and second usage states as needed. When the user needs to use the function of the cover plate 53, it can be installed on the first support plate 51. When the user only needs to use the function of the opening 52, the cover plate 53 can be removed from the first support plate 51. The cover plate 53 can be placed anywhere on the trolley 100. For example, it can be placed above the base plate 11, or inside a toolbox, or suspended from the trolley 100. As long as there is sufficient space, the cover plate 53 can be placed, allowing the user to switch usage states at any time.

[0058] In one embodiment where the opening 52 accommodates the cover plate 53, a stepped surface 521 is formed circumferentially on the inner wall of the opening 52. The stepped surface 521 provides support for the cover plate 53. That is, after the cover plate 53 is inserted into the opening 52, it will move downward under the influence of gravity until at least part of the cover plate 53 contacts the stepped surface 521 and forms support, thereby stopping the cover plate 53 from moving. This arrangement allows the cover plate 53 to be installed on the first support plate 51, i.e., the cover plate 53 is in a first use state. Similarly, removing the cover plate 53 only requires removing the cover plate 53 to switch the cover plate 53 from the first use state to a second use state. The above arrangement can achieve the switching between the use states of the cover plate 53 without complicated operations, which is convenient for users, has a simple structure, and is easy to manufacture and implement.

[0059] Of course, to ensure the stability of the connection between the cover plate 53 and the first support plate 51, one or a combination of methods such as bolt connection, snap-fit ​​connection, and pin connection can be used to fix the cover plate 53 and the first support plate 51 together. The specific connection method and structure between the cover plate 53 and the first support plate 51 are not limited, as long as a detachable connection between them can be achieved.

[0060] As a feasible implementation, the cover plate 53 and the first support plate 51 are bolted together. The trolley 100 also includes a locking element 523. Positioning holes 522 are provided on both the cover plate 53 and the stepped surface 521. The positioning holes 522 on the cover plate 53 correspond to the positioning holes 522 on the stepped surface 521. When the positioning holes 522 on the cover plate 53 are aligned with the positioning holes 522 on the stepped surface 521, the user can use the locking element 523 to pass through the positioning holes 522 on the cover plate 53 and the stepped surface 521, and then tighten the screws to fix the cover plate 53 to the first support plate 51. Removing the cover plate 53 is also simple; the user only needs to loosen the nut to remove the cover plate 53 and the screws from the first support plate 51.

[0061] As another connection method between the cover plate 53 and the first support plate 51, the cover plate 53 and the first support plate 51 are connected by a snap-fit ​​connection. A snap-fit ​​portion 524 with a certain degree of elasticity is connected or formed on the cover plate 53, and an adapter portion 525 that mates with the snap-fit ​​portion 524 is connected or formed on the first support plate 51. When the user wants to fix the cover plate 53 to the first support plate 51, the user contacts the snap-fit ​​portion 524 with the adapter portion 525 and then presses the cover plate 53 downwards. The snap-fit ​​portion 524 deforms under force, causing it to snap into the adapter portion 525, thereby fixing the cover plate 53 to the first support plate 51. When the user wants to remove the cover plate 53 from the first support plate 51, the user drives the snap-fit ​​portion 524, releasing it from the adapter portion 525, and then removes the cover plate 53 from the first support plate 51.

[0062] Multiple openings 52 can be formed on the first support plate 51, and any one opening 52 can accommodate at least one cover plate 53. Different cover plates 53 can perform different functions, and by combining different cover plates 53, more functions of the trolley 100 can be achieved.

[0063] The first type of cover plate 531 has multiple openings 54, which connect the first storage space 12 and the second storage space 13. The cross-section of any opening 54 is smaller than the cross-sectional area of ​​the opening 54. For elongated items 60, if the user does not place enough elongated items 60 in the opening 52, the elongated items 60 will shake during transportation. If encountering a bumpy path, the height of the elongated items 60 will be inconsistent, resulting in scraping. By setting a cover plate 53 with multiple openings 54, the user can insert the elongated items 60 into the openings 54. The openings 54 can better limit the movement range of the elongated items 60, avoiding strong shaking when there are too few elongated items 60. It can also replace and store elongated items 60, making it convenient for the user to manage.

[0064] The opening 54 can be used with the accessory box 55, allowing the user to snap the accessory box 55 into the opening 54. Most workplaces require the use of small accessories, such as nails and nuts. Users typically place these small accessories in the accessory box 55 with the top opening 52. In the workplace, the trolley 100 serves as a display trolley for easy access to items 60. By installing a first type of cover 531 on the first support plate 51, the user can snap the accessory box 55 into the opening 54 and place small accessories inside. This allows the user to directly access items 60 during work, facilitating user use and management of small items 60. Furthermore, the user can choose whether or not to install the first type of cover 531, or even eliminate the need for this type of cover 53, based on actual working conditions. Users can also change the type of cover 53 themselves, increasing the versatility of the trolley 100's functions.

[0065] The openings 54 on the first type of cover 531 can be distributed in various ways, and different distribution methods can also be considered as different styles of the first type of cover 531. As one distribution method, the openings 54 on the first type of cover 531 are arranged in two rows along the front-back direction. Each row can have one or more openings 54. Users can place long rod-like items 60 or attach small accessory boxes 55 in the openings 54.

[0066] As one placement method, users can store long rod-like items 60 in the openings 54 of the first row and attach accessory boxes 55 in the openings 54 of the second row. Alternatively, accessory boxes 55 can be attached to the openings 54 of the first row and long rod-like items 60 can be stored in the openings 54 of the second row.

[0067] As one arrangement of the first type of cover plate 531, the first type of cover plate 531 has 6 openings 54 with basically the same cross-section, with 3 openings 54 evenly distributed in each row. As another arrangement of the first type of cover plate 531, the first type of cover plate 531 has 4 openings 54, with one opening 54 in the first row and three openings 54 with basically the same cross-section in the second row. As another arrangement of the first type of cover plate 531, the first type of cover plate 531 has 5 openings 54, with 2 openings 54 in the first row with basically the same cross-section, and three openings 54 in the second row with basically the same cross-section. The above are just feasible solutions; of course, the first type of cover plate 531 can also have fewer or more openings 54.

[0068] The second type of cover plate 532 is a planar cover plate 53. Two second type of cover plates 532 can basically close the opening 52, and the second type of cover plates 532 are arranged basically symmetrically. The second type of cover plate 532 has a top surface. When the second type of cover plate 532 is installed on the opening 54, the top surface of the second type of cover plate 532 is basically flush with the bottom surface formed by the connection of the first support plate 51. That is, by installing two second type of cover plates 532 side by side on the opening 52, the opening 52 can be basically sealed, so the trolley 100 can become a regular double-layer trolley 100. The arrangement of the second type of cover plate 532 can realize multiple function switching.

[0069] As an operational method, a second type of cover plate 532 is installed on the opening 52, reducing the size of the opening 52 to half its original size. As mentioned earlier, the user can place some long, narrow items 60 on the trolley 100, forming a large slot through the opening 52. The opening 52 restricts the movement range of the upper part of the long, narrow items 60. By installing a second type of cover plate 532 on the opening 52, the size range of the opening 52 can be reduced. Thus, for a small number of long, narrow items 60 placed on the trolley 100, the size of the opening 52 can be limited by the second type of cover plate 532, thereby limiting the movement range of the upper part of the long, narrow items 60. It can also be understood that the number of long, narrow items 60 placed on the trolley 100 can be adjusted using the second type of cover plate 532. Another way to operate is to set two second-type cover plates 532 side by side on the first support plate 51. That is, the second-type cover plates 532 are used to close the opening 52, and the user can turn the trolley 100 into a regular double-layer trolley 100. When the two second-type cover plates 532 close the opening 52, the top surface of the two second-type cover plates 532 is basically flush with the bottom surface of the first support plate 51. In this way, the user can also place items 60 on the top surface of the two second-type cover plates 532.

[0070] Multiple covers 53 can be arranged side-by-side within the opening 52. Users can place first-type covers 531 and second-type covers 532 side-by-side within the opening 52, with the second-type covers 532 positioned above the first-type covers 531. As one operational method, the user places the first-type covers 531 directly on the step surface 521, and then places a second-type cover 532 on top of the first-type covers 531. Because a second-type cover 532 will close part of the opening 52, only one row of the first-type covers 531 can be used. Alternatively, the second-type covers 532 can close any row of openings 52, meaning the user can select which row of openings 54 to activate using the second-type covers 532. For users, during transportation or placement, it is often unnecessary to activate too many openings 54. Users can select which openings 54 to activate based on current working conditions or needs. Items 60 can still be placed on the second-type covers 532. By using the first type of cover plate 531 and the second type of cover plate 532 together, the storage space of the trolley 100 can be better utilized, the versatility of the trolley 100's functions can be greatly improved, and the diversity of user choices can also be increased.

[0071] Regarding the assembly method of the first type of cover plate 531 and the second type of cover plate 532, the first type of cover plate 531 can be directly inserted into the opening 52 until it contacts the stepped surface 521. Then, the second type of cover plate 532 can be inserted into the opening 52 until it contacts the first type of cover plate 531. At this time, the top surface of the second type of cover plate 532 is basically flush with the bottom surface of the first support plate 51. When the user wants to change the position of the second type of cover plate 532, simply remove the second type of cover plate 532, move it above another row of openings 54, and insert it downwards until it contacts the first type of cover plate 531, thus completing the position change of the second type of cover plate 532.

[0072] The third type of cover plate 533 is a flat cover plate 53, and one third type of cover plate 533 can basically close the opening 52. The user can use the third type of cover plate 533 as a workbench to perform workpiece processing and other activities on the third type of cover plate 533.

[0073] The cover plate 53 can be made of a variety of materials, such as wood, plastic, metal, etc.

[0074] like Figure 17As shown, in another embodiment of the trolley 100, most of the structure follows the first embodiment, except for the connection method between the first support plate 51 and the base plate 11. Specifically, the first support plate 51 is connected to the upper end of the base plate 11 via two storage containers 40. The structure and principle of the opening 52 and the cover plate 53 are the same as in the previous embodiment. Of course, in other embodiments of the trolley 100, the first support plate 51 can also be connected to the base plate 11 via two or more storage containers 40.

[0075] like Figure 18 As shown, in other embodiments of the trolley 100, most of the structure follows that of the first embodiment, except for the connection method between the first support plate 51 and the base plate 11. In another embodiment of the trolley 100, the trolley 100 also includes a support leg 41 assembly, through which the first support plate 51 is connected to the base plate 11. Specifically, the support leg 41 assembly includes two support legs 41, and the first support plate 51 is connected to the top of the base plate 11 via the support legs 41 and the pull rod 31. The structure and principle of the opening 52 and the cover plate 53 are the same as in the previous embodiment.

[0076] like Figure 19 As shown, in other embodiments of the trolley 100, most of the structure follows that of the first embodiment, except for the connection method between the first support plate 51 and the base plate 11. Specifically, the trolley 100 also includes a support leg 41 assembly, through which the first support plate 51 is connected to the base plate 11. Specifically, the support leg 41 assembly includes four support legs 41, through which the first support plate 51 is connected to the top of the base plate 11. The structure and principle of the opening 52 and the cover plate 53 are the same as in the previous embodiment.

[0077] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A trolley suitable for storing containers, comprising: Walking components, including rotating wheels; A base plate assembly includes a base plate connected to the walking assembly, and the base plate assembly is at least partially disposed on the upper side of the walking assembly; Its features are, The cart also includes: A first support plate is configured to be connected to the upper side of the base plate via at least one of the storage containers; The cover plate is connected to the first support plate; The first support plate has an opening that can accommodate at least part of the cover plate. The area above the bottom plate is defined as a first storage space, and the area above the first support plate is defined as a second storage space. The opening connects the first storage space and the second storage space.

2. The trolley according to claim 1, characterized in that, The trolley further includes a pull rod assembly connected to the base plate assembly. The pull rod assembly includes a pull rod connected to the base plate, and the pull rod is configured to be detachably and fixedly connected to the first support plate. The trolley has a first working mode and a second working mode, which can be switched between each other. When the trolley is in the first working mode, the pull rod is connected to the first support plate, and the pull rod cooperates with the storage container to connect the first support plate to the base plate. When the trolley is in the second working mode, the first support plate and the base plate are connected through the two storage containers, and the pull rod is separated from the first support plate.

3. The trolley according to claim 2, characterized in that, When the trolley is in the first operating mode, the trolley is configured to allow items to be placed on the base plate, and the items are allowed to pass at least partially through the opening.

4. The trolley according to claim 1, characterized in that, A stepped surface is formed on the inner wall of the opening, and the stepped surface is configured to contact the cover plate so that the cover plate is at least partially received within the first support plate.

5. The trolley according to claim 1, characterized in that, The opening in the first support plate is configured to accommodate one or more of the cover plates.

6. The trolley according to claim 1, characterized in that, The cover plate includes at least a first type of cover plate, which is connected or forms one or more openings, the openings being able to connect the first storage space and the second storage space.

7. The trolley according to claim 6, characterized in that, The cover plate also includes one or more second-type cover plates, which are configured to allow the closure of one or more of the openings.

8. The trolley according to claim 6, characterized in that, The cover plate and the first support plate are connected by one or a combination of bolts, snap-fit ​​connections, and pin connections.

9. The trolley according to claim 6, characterized in that, The trolley also includes a locking element, a stepped surface is formed on the inner wall of the opening, the cover plate is placed on the stepped surface, and the locking element passes through the cover plate and connects to the stepped surface so that the cover plate is fixedly connected to the first support plate.

10. The trolley according to claim 6, characterized in that, The trolley also includes an accessory box for placing items, the accessory box being configured to snap into the opening.

11. The trolley according to claim 1, characterized in that, The maximum length of the opening in the front-to-back direction is greater than or equal to 85 mm.

12. The trolley according to claim 1, characterized in that, The maximum length of the opening in the left-right direction is greater than or equal to 85 mm.

13. A trolley suitable for storing containers, comprising: Walking components, including rotating wheels; A base plate assembly includes a base plate connected to the walking assembly, and the base plate assembly is at least partially disposed on the upper side of the walking assembly; Its features are, The cart also includes: A support leg is connected to the base plate, and the support leg is at least partially disposed on the upper side of the base plate. The first support plate is connected to the base plate via the support leg; The area above the base plate is defined as a first storage space, and the area above the first support plate is defined as a second storage space. An opening is formed on the first support plate, and the opening connects the first storage space and the second storage space.

14. A trolley suitable for storing containers, comprising: Walking components, including rotating wheels; A base plate assembly includes a base plate connected to the walking assembly, and the base plate assembly is at least partially disposed on the upper side of the walking assembly; Its features are, The cart also includes: A first support plate is configured to be connected to the upper side of the base plate via at least one of the storage containers; The area above the base plate is defined as a first storage space, and the area above the first support plate is defined as a second storage space. An opening is formed on the first support plate, and the opening connects the first storage space and the second storage space.

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