Four-way vehicle floating charging mechanism and stereoscopic warehouse

Abstract

According to the four-way vehicle floating charging mechanism and the stereoscopic warehouse provided by the invention, the charging plug and the corresponding movable structure are suspended in the cavity of the frame through the elastic connecting piece, so that the charging plug can be connected with the four-way vehicle in a butt-joint charging process; elastic deformation of the elastic connecting piece is utilized to correspondingly stretch out and draw back along with the butt joint position and the insertion angle of the four-way vehicle body, and the insertion angle of the plug is adjusted to facilitate butt joint charging of the vehicle. After charging is completed, the vehicle body is driven away from the insertion position, butt joint is cancelled, and at the moment, the elastic connecting piece can automatically drive the charging plug to restore to the initial suspension installation position. According to the invention, the elastic part is used for realizing a front-back, left-right and up-down movement space in a certain range for the plug structure, automatic butt joint between the charging plug and the socket can be ensured, and the problem of difficult butt joint of the existing plug charging mode is solved.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent warehousing equipment, and in particular to a four-way vehicle floating charging mechanism and a stereoscopic warehouse. Background Art

[0002] In recent years, as more and more industries have incorporated vertical storage systems into their supply chains, the complex operating conditions in various application scenarios have posed severe challenges to the charging technology of four-way vehicles. To reduce the risk of docking failures and improve the safety of vertical storage operations, we have replaced the original face-to-face charging method of four-way vehicles with a plug-in charging method.

[0003] However, with plug-in charging, the gap between the plug and the socket is small. This makes it difficult to precisely control the vehicle's operating position due to various factors. This can cause the vehicle to misalign the plug during charging, leading to docking failure. In extreme cases, the vehicle's inertia can easily damage the charging plug during incorrect docking.

[0004] Therefore, there is an urgent need for a technical means that can power the four-way shuttle in the vertical warehouse system and automatically solve the problem of mismatch between the plug and socket when providing plug-in charging. Utility Model Content

[0005] To address the shortcomings of the existing technology, the present application aims to provide a four-way floating charging mechanism and a three-dimensional warehouse. This application uses elastic components to provide a plug structure with a certain range of forward, backward, left, right, and upward movement, ensuring automatic docking between the charging plug and the socket, thus resolving the difficulty of docking in existing plug-based charging methods.

[0006] To achieve the above-mentioned purpose, the present application provides a four-way vehicle floating charging mechanism, which includes: a frame, a cavity is provided inside the frame; a charging plug, the bottom of which is suspended in the cavity by an elastic connector, and the top of which extends outward from the frame; the elastic connector is provided with at least two directions of telescopic freedom. During the docking and charging process between the charging plug and the four-way vehicle, the elastic connector expands and contracts accordingly with the docking position of the four-way vehicle body; after the docking is canceled, the elastic connector drives the charging plug to return to its initial suspended installation position.

[0007] Optionally, in any of the above-described four-way vehicle floating charging mechanisms, the feeder circuit of the charging plug is arranged in the cavity of the frame, and the feeder circuit is only stably electrically connected to the feeder end at the bottom of the charging plug.

[0008] Optionally, a four-way vehicle floating charging mechanism as described above, wherein the elastic connecting member includes: a first elastic structure and a second elastic structure; specifically provided between the frame and the charging plug are: front and rear movable plates, which are U-shaped structures, and are abutted against the front end of the cavity of the frame by the first elastic structure, and the first elastic structure has the freedom of extension and contraction arranged along the first direction; a plug movable plate, which is connected to the bottom of the charging plug, and is suspended by the second elastic structure in the hollow part of the front and rear movable plates, and the second elastic structure has the freedom of extension and contraction in at least two directions arranged along the circumference of the plug movable plate.

[0009] Optionally, in any of the above-described four-way vehicle floating charging mechanisms, each elastic connecting member is any one of a spring, an elastic belt, an elastic rope, and an elastic connecting cantilever, or a combination thereof.

[0010] Optionally, a four-way vehicle floating charging mechanism as described above, wherein the frame includes a bottom plate and a front plate arranged in the front and rear, a guide shaft is connected between the bottom plate and the front plate, and the bottom plate, the front plate and the guide shaft together form a cavity of the frame; the first elastic structure is sleeved on the guide shaft, one end of the first elastic structure directly abuts the bottom plate, and the other end abuts the guide sleeve on the rear side of the front and rear movable plates.

[0011] Optionally, in any of the above-described four-way vehicle floating charging mechanisms, the second elastic structure is connected to the plug movable plate by edges of the front and rear movable plates, respectively, and the second elastic structure is arranged circumferentially with the plug movable plate as the symmetrical center.

[0012] Optionally, a four-way vehicle floating charging mechanism as described above, wherein the first elastic structure is a cylindrical helical compression spring, the second elastic structure is a cylindrical helical tension spring, and the cylindrical helical tension spring is hooked on the fixing holes of the plug movable plate and the front and rear movable plates.

[0013] Optionally, in any of the above-described four-way vehicle floating charging mechanisms, the bottom of the charging plug is covered with an insulating protective layer, and the metal electrical connection structure is exposed only at the end portion for docking with the four-way vehicle for charging and at the connection portion for the feeder line.

[0014] Optionally, in any of the above-described four-way vehicle floating charging mechanisms, the frame, the plug movable plate, and the front and rear movable plates are all made of insulating materials.

[0015] At the same time, in order to achieve the above-mentioned purpose, the present application also provides a three-dimensional warehouse, wherein a four-way vehicle floating charging mechanism as described above is provided at the charging position of the four-way vehicle.

[0016] Compared with the existing solutions, this application has the following technical effects:

[0017] The four-way vehicle floating charging mechanism and stereoscopic warehouse provided by the present application have a charging plug and a corresponding movable structure suspended in the cavity of the frame by an elastic connector. During the process of docking and charging between the charging plug and the four-way vehicle, the elastic deformation of the elastic connector can be used to follow the docking position and plug-in angle of the four-way vehicle body and adjust the plug-in angle of the plug to facilitate vehicle docking and charging. After charging is completed, the vehicle body moves away from the plug-in position and the docking is canceled. At this time, the elastic connector can also automatically drive the charging plug to return to the initial suspended installation position. The present application uses elastic parts to provide the plug structure with a certain range of front, back, left, right, up and down movable space, which can ensure automatic docking between the charging plug and the socket, solving the problem of difficult docking in the existing plug charging method.

[0018] Other features and advantages of the present application will be set forth in the following description, and in part will be apparent from the description, or may be learned by practicing the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0020] Figure 1 Schematic diagram of the overall structure of the four-way vehicle floating charging mechanism according to the present application;

[0021] Figure 2 for Figure 1 Schematic diagram of the mid-frame structure;

[0022] Figure 3 for Figure 1 Schematic diagram of the flexible connection method of the charging plug;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the floating charging mechanism of the medium four-way vehicle from the X-axis perspective.

[0024] In the figure, 1 represents a frame; 11 represents a base plate; 12 represents a front plate; 13 represents a guide shaft; 14 represents a cylindrical helical compression spring; 2 represents a plug movable plate; 21 represents a charging plug; 3 represents front and rear movable plates; 31 represents a guide sleeve; and 4 represents a cylindrical helical tension spring. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0026] The meaning of "inside" and "outside" in this application refers to the direction pointing to the internal cavity of the frame relative to the frame itself, and the opposite direction is outside; it is not a specific limitation on the device mechanism of this application.

[0027] The meaning of "front and rear" mentioned in this application refers to the direction from the bottom plate to the tip of the charging plug when the user is facing the direction of the four-way car plug and charge, which is the front, and the opposite direction is the rear, rather than a specific limitation of the device mechanism of this application.

[0028] The term “connection” as used in this application may mean a direct connection between components or an indirect connection between components via other components.

[0029] The meaning of "up" and "down" in this application refers to that when the user is facing the direction of the four-way vehicle for charging, the direction from the track system pointing to the four-way vehicle is up, and the opposite direction is down, rather than a specific limitation on the device mechanism of this application.

[0030] The four-way vehicle floating charging mechanism provided in this application is set in a stereoscopic warehouse and is used to dock and charge mobile devices such as four-way vehicles or forklifts running in the stereoscopic warehouse. In order to facilitate the docking of various types of mobile devices, the charging mechanism of this application includes Figure 1 Shown:

[0031] The frame 1 has a cavity inside to provide a certain amount of space for the charging plug to move;

[0032] A charging plug 21, the bottom of which is suspended in the cavity by an elastic connector, and the top of which extends outward from the frame 1;

[0033] The axes of the elastic connectors are arranged in at least two different directions, so that each elastic connector can provide the charging plug with at least two degrees of freedom of extension and contraction in two directions, thereby:

[0034] During the docking and charging process between the charging plug 21 and the four-way vehicle, the elastic connector can extend and retract according to the docking position of the four-way vehicle body through its telescopic freedom. During the reverse docking process of the four-way vehicle, the elasticity of the elastic connector maintains the charging plug 21 outward and guides its end into the fork hole in accordance with the actual direction of the fork hole structure of the four-way vehicle, thereby achieving docking and charging.

[0035] After the four-way vehicle moves forward and cancels the docking, its squeezing of the charging plug is also cancelled. At this time, the elastic connector can synchronously drive the charging plug 21 to move forward accordingly with the movement of the four-way vehicle, and gradually return to the initial suspended installation position.

[0036] Considering that the power feeder circuit of the charging plug 21 is disposed within the cavity of the frame 1 during the aforementioned plug-in charging process, to avoid electrical leakage, accidental contact, or similar safety risks, the present application further configures the power feeder circuit to maintain a stable electrical connection with the docking charging terminal only from the bottom of the charging plug 21. A plug movable plate 2 can be provided at the very bottom of the charging plug 21 to provide a connection location for the aforementioned elastic connector.

[0037] This structure can be specifically referred to Figures 2 to 4 As shown, the four-way vehicle floating charging mechanism is configured to include a set of floating mechanism frames, a front and rear movable plate, a plug movable plate, a charging plug, and a plurality of springs and guide copper sleeves.

[0038] Among them, the front and rear movable plates 3 and the plug movable plate 2 are arranged between the frame 1 and the charging plug 21:

[0039] The front and rear movable panels 3 can be specifically configured as a U-shaped structure, with a first elastic structure abutting against the front end of the cavity of the frame 1. The first elastic structure utilizes the degree of freedom of extension and contraction along the front and rear guide axis of the frame 1 to achieve dynamic control of the front and rear positions of the front and rear movable panels 3 and the charging plug 21.

[0040] The plug movable plate 2 can be specifically configured to be connected to the bottom of the charging plug 21 and suspended within the hollow portion of the front and rear movable plates 3 by a second elastic structure. The second elastic structure is arranged in a direction that allows for extension and retraction in at least two directions along the circumference of the plug movable plate 2. This degree of freedom maintains the charging plug 21 in the center of the front and rear movable plates 3 and the frame 1, providing circumferential movement for the charging plug 21 and facilitating docking of a four-way vehicle with the charging plug 21 from various positions. In specific applications, the charging plug 21 can be a purchased standard component with an insulated exterior structure and screws attached to the plug movable plate 2. Five flanges can be provided around the circumference of the movable plate 2, extending outward and provided with circular holes. The second elastic structure can be a cylindrical helical cable spring. The semicircular hook at one end of the spring can be hooked into the circular hole of the extended flange, while the hook at the other end of the spring can be hooked into the circular hole in the rear movable plate, achieving floating positioning of the charging plug 21.

[0041] Among them, such as Figure 2 The frame comprises a base plate 11 and a front plate 12, arranged front and rear, along with a guide shaft 13 connecting them. Within the overall structure, the floating mechanism frame provides guidance for the movable plates, defines their range of motion, and provides overall mechanical assembly. The base plate 11, front plate 12, and guide shaft 13 together form a cavity within the frame 1 within which the charging plug 21 can freely move.

[0042] See also Figure 3In this structure, the floating mechanism movable plate can be specifically configured to include a plug movable plate, a front and rear movable plate, several elastic structures, several guide copper sleeves, and several gaskets. The elastic connectors can be configured as any one of a spring, an elastic band, an elastic rope, or an elastic connecting cantilever, or any combination thereof. The plug movable plate and the front and rear movable plates are connected via five elastic structures in tension. After the gaskets and guide copper sleeves are installed on the front and rear movable plates, they are mounted on four guide shafts. A set of compressed elastic structures each achieves a first degree of freedom of extension and contraction, providing reset for the plug movable plate. The four cylindrical helical compression springs 14 respectively extend and retract along the four guide shafts 13 as the vehicle body moves, realizing floating in the X-axis direction. The connection between the copper sleeve and the above-mentioned elastic structure can ensure that the front and rear movable plates are reset to the front side of the charging mechanism after the charging action is completed, which is convenient for the next docking; the plug movable plate 2 and the front and rear movable plates 3 are connected by five cylindrical helical tension springs 5, and the floating in the Y and Z directions can be realized through the expansion and contraction freedom of the five springs in different directions, so that the plug movable plate is connected to the front and rear movable plates through the elastic structure, ensuring that the plug movable plate can be offset accordingly according to the docking angle of the vehicle body during the charging docking process, and reset after the charging action is completed.

[0043] To facilitate assembly, the first elastic structure, sleeved on the guide shaft 13, can be configured as a cylindrical helical compression spring 14. One end of the cylindrical helical compression spring 14 can directly abut the base plate 11, and the other end can abut the guide sleeve on the rear side of the front and rear movable plates 3 to provide a forward and backward limiting effect, pushing the charging plug 21 forward so that it protrudes out of the cavity to dock with the four-way vehicle, and providing a retracted space during the docking and charging process.

[0044] The second elastic structure between the front and rear movable plates, which maintains the central axis of the charging plug 21, can be configured as a cylindrical helical tension spring. Each cylindrical helical tension spring connects to the edges of the front and rear movable plates 3 and the plug movable plate 2, respectively. The second elastic structure is arranged symmetrically around the plug movable plate 2. This maintains the charging plug 21 in a neutral position from all directions, ensuring sufficient movement in all directions to accommodate a four-way vehicle connection angle.

[0045] The floating mechanism thus designed has an overall frame that constitutes the external installation of the floating mechanism, which can provide support for the internal structure while providing guidance and reset functions for the active parts through a flexibly set elastic structure;

[0046] The floating mechanism movable plate in the device includes a part that can move forward and backward within a certain range, and a part that can move up, down, left, and right within a certain range. These parts can be called the front and rear movable plates and the plug movable plate. All movable plates are directly or indirectly connected to the overall frame.

[0047] When the four-way shuttle vehicle needs to be charged, the charging plug is fixed on the movable plate. Under the action of the guide device, the movable plate adaptively adjusts its position to ensure that the charging plug can be normally plugged in to complete the charging action.

[0048] The aforementioned elastic connector can be simply implemented using springs. The first elastic structure is a cylindrical helical compression spring, while the second elastic structure is a cylindrical helical tension spring. The cylindrical helical tension springs hook onto the fixing holes of the plug movable plate 2 and the front and rear movable plates. The cylindrical helical compression spring 14 passes through the guide shaft 13 and is located between the base plate 11 and the guide sleeve 31. This ensures that all movable plates, including the front and rear movable plates, are connected to the springs, ensuring that they can be reset when charging is complete.

[0049] The charging plug 21, held in a neutral position by springs, may be covered with an insulating protective layer at its base, with exposed metal electrical connections only at the end where it connects to the four-way vehicle for charging and where it connects to the feeder circuit. The frame 1, plug movable plate 2, and front and rear movable plates 3 may all be constructed of insulating material to ensure the safety of the plug connector.

[0050] The advantage of this application lies in the following: the floating mechanism provided by this application guides the front and rear movable plates and the plug movable plate through the overall frame, allowing both to move freely within a certain range, which is equivalent to allowing the charging plug fixed on the movable plate to move freely within a certain range. In this way, when the four-way vehicle is charging, the charging plug can adaptively adjust its posture to complete normal plugging. Because all movable plates are connected to springs, after the charging action is completed, the springs will drive the movable plates to reset, solving the problem of inconsistent initial positions of the movable plates.

[0051] Those skilled in the art will understand that the above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A four-way vehicle floating charging mechanism, characterized in that: include: A frame (1) having a cavity therein; A charging plug (21), the bottom of which is suspended in the cavity by an elastic connector and the top of which extends outward from the frame (1); The elastic connector is provided with at least two degrees of freedom of expansion and contraction in two directions. During the charging process of the charging plug (21) docking with the four-way vehicle, the elastic connector expands and contracts accordingly with the docking position of the four-way vehicle body; After the docking is cancelled, the elastic connecting member drives the charging plug (21) to return to the initial suspended installation position.

2. The four-way vehicle floating charging mechanism according to claim 1, characterized in that: The feeder circuit of the charging plug (21) is arranged in the cavity of the frame (1), and the feeder circuit is stably electrically connected only to the feeder end at the bottom of the charging plug (21).

3. The four-way vehicle floating charging mechanism according to claim 1, characterized in that: The elastic connecting member includes: a first elastic structure and a second elastic structure; Specifically provided between the frame (1) and the charging plug (21) are: Front and rear movable plates (3) are of a U-shaped structure and are abutted against the front end of the cavity of the frame (1) by a first elastic structure, wherein the first elastic structure has a telescopic freedom arranged along a first direction; A plug movable plate (2) is connected to the bottom of a charging plug (21) and is suspended in the hollow portion of the front and rear movable plates (3) by a second elastic structure, wherein the second elastic structure has a degree of freedom of extension and contraction in at least two directions arranged along the circumference of the plug movable plate (2).

4. The four-way vehicle floating charging mechanism according to claim 3, characterized in that: Each elastic connecting member is any one of a spring, an elastic belt, an elastic rope, and an elastic connecting cantilever, or a combination thereof.

5. The four-way vehicle floating charging mechanism according to claim 3, characterized in that: The frame comprises a bottom plate (11) and a front plate (12) arranged front and back, a guide shaft (13) being connected between the bottom plate (11) and the front plate (12), and the bottom plate (11), the front plate (12) and the guide shaft (13) together form a cavity of the frame (1); The first elastic structure is sleeved on the guide shaft (13), one end of the first elastic structure directly abuts the bottom plate (11), and the other end abuts the guide sleeve on the rear side of the front and rear movable plates (3).

6. The four-way vehicle floating charging mechanism according to claim 5, characterized in that: The second elastic structure is connected to the plug movable plate (2) via the edges of the front and rear movable plates (3), respectively, and the second elastic structure is arranged circumferentially with the plug movable plate (2) as the symmetrical center.

7. The four-way vehicle floating charging mechanism according to claim 5, characterized in that: The first elastic structure is a cylindrical helical compression spring, and the second elastic structure is a cylindrical helical tension spring. The cylindrical helical tension spring is hooked on the fixing holes of the plug movable plate (2) and the front and rear movable plates.

8. The four-way vehicle floating charging mechanism according to claim 3, characterized in that: The bottom of the charging plug (21) is covered with an insulating protective layer, and the metal electrical connection structure is exposed only at the end portion for docking with the four-way vehicle for charging and at the connection portion for the feeder line.

9. The four-way vehicle floating charging mechanism according to claim 8, characterized in that: The frame (1), the plug movable plate (2), and the front and rear movable plates (3) are all made of insulating materials.

10. A three-dimensional warehouse, characterized in that: A four-way vehicle floating charging mechanism as described in any one of claims 1 to 9 is provided at the charging position of the four-way vehicle.

Images