Fireproof device for AGV charging of stereoscopic warehouse, charging device and stereoscopic warehouse

Abstract

The utility model provides a fireproof device for charging an AGV (Automatic Guided Vehicle) of a three-dimensional warehouse, a charging device and the three-dimensional warehouse, comprising at least two columns of vertical supporting frames, horizontal partition plates and top plates, wherein the horizontal partition plates are arranged at intervals in the vertical direction, the number of the horizontal partition plates corresponds to the number of storage layers, and the top plates are arranged between every two adjacent supporting frames; the supporting plates are arranged at the two ends, in the first direction, of the partition plate or between every two adjacent supporting frames, each supporting plate comprises a downward-concave groove in the middle and step bases which are arranged on the two sides above the groove and communicate with the groove, and the grooves are used for installing charging piles for AGV charging; the step seat is used for mounting a connecting track which extends in the first direction and is used for connecting the crossed track; the fire extinguishing ball is installed at the bottom of the partition plate and / or the bottom of the top plate above the charging pile. According to the fireproof device provided by the utility model, charging of the AGV is facilitated, and the fireproof device also has a fire extinguishing effect.

Description

Technical Field

[0001] The utility model relates to the field of storage equipment, in particular to a fire prevention device for AGV charging in a stereoscopic warehouse, a charging device and a stereoscopic warehouse. Background Art

[0002] A three-dimensional warehouse is also called a high-bay warehouse or a high-bay warehouse. It generally refers to a warehouse that uses shelves with several, dozens or even dozens of layers to store unit goods and uses corresponding material handling equipment to carry out goods warehousing and outbound operations. Because this type of warehouse can make full use of space to store goods, it is often figuratively called a "three-dimensional warehouse."

[0003] Automated Guided Vehicle (AGV), also known as automatic guided transporter or automatic guided transporter, is an industrial vehicle that loads goods automatically or manually, drives automatically along a set route or pulls a cargo trolley to a designated location, and then loads and unloads goods automatically or manually.

[0004] In the process of implementing the present utility model, the inventors found that there are at least the following problems in the prior art:

[0005] At present, in order to charge the AGV running in the stereoscopic warehouse, it is necessary to move from the cross track of the stereoscopic warehouse to the ground first, and then find the charging pile on the ground to charge. After charging, it is inconvenient to move back to the cross track of the stereoscopic warehouse to continue working. In addition, the mainstream AGV running in the stereoscopic warehouse generally uses lithium batteries as the main power source, but lithium batteries have the possibility of combustion and explosion in principle, which may cause greater chain hazards.

[0006] Therefore, a fire prevention device, a charging device and a stereoscopic warehouse for AGV charging in a stereoscopic warehouse are needed to at least partially solve the above technical problems. Utility Model Content

[0007] In order to solve the problems of the prior art, the utility model provides a fire prevention device for AGV charging in a stereoscopic warehouse, a charging device and a stereoscopic warehouse, which not only facilitate the charging of the AGV but also have a fire extinguishing effect.

[0008] In the first aspect, the utility model provides a fire prevention device for AGV charging in a stereoscopic warehouse, wherein the stereoscopic warehouse comprises a vertical shelf arranged in the warehouse and a plurality of storage layers arranged in the storage partitions of the shelf, each of the storage layers is configured with a cross track for AGV horizontal walking, and the fire prevention device comprises:

[0009] An upright frame, the frame comprising at least two rows of vertical support frames, horizontal partitions arranged between two adjacent support frames and spaced in a vertical direction and corresponding to the number of storage layers, and a top plate arranged to the top opening; wherein a space is reserved between the two adjacent support frames and above the partition for the AGV to pass horizontally along a first direction;

[0010] A vertical support plate extending in the second direction, the support plate being arranged at both ends of the partition in the first direction or between the two adjacent support frames, the support plate comprising a downwardly recessed groove in the middle and step seats communicating with the groove arranged on both sides above the groove, the groove being used to install a charging pile for charging the AGV, and the step seats being used to install a connecting track extending in the first direction for connecting the cross track; wherein the second direction is perpendicular to the first direction; and

[0011] A fire extinguishing ball is installed to the bottom of the partition above the charging pile and / or the bottom of the top plate.

[0012] According to the fire prevention device of the utility model, when the AGV needs to be charged, it can run directly to the frame through the connecting track connected to the cross track of the storage layer. After reaching the predetermined position of the frame and being electrically connected to the charging pile, the AGV can be charged. If combustion and explosion occur during the charging process of the AGV, the fire extinguishing ball suspended in the center of each layer of the partition will burn the fire extinguishing fuse wrapped on the surface after encountering an open flame, and then drive the inner core explosion device to automatically spray dry powder, thereby achieving the effect of automatic fire extinguishing.

[0013] Optionally, the bottom surface of the groove of the support plate is flush with the partition plate.

[0014] According to this solution, when the charging pile is installed in the groove, it can also obtain upward support from the partition, thereby improving the installation stability.

[0015] Optionally, the support plate and the partition plate are an integrated structure or a split structure.

[0016] Optionally, the outer side of the frame is further covered with a flame retardant plate at a remaining position outside the space for the AGV to pass horizontally along the first direction.

[0017] According to this solution, by covering the outer side of the frame with a flame retardant plate, the spread of fire can be prevented when combustion occurs, thereby improving the safety of use.

[0018] Optionally, the support frame comprises two columns arranged along the first direction, and a horizontal tie rod and / or a diagonal tie rod for strengthening the connection is arranged between the two columns. And / or

[0019] A reinforcing connecting rod is further provided between the two adjacent supporting frames at the remaining positions outside the space for the AGV to pass horizontally along the first direction.

[0020] Optionally, the top plate is made of a flame retardant plate.

[0021] Optionally, the frame is configured to be arranged in a warehouse at a certain distance from the shelf, and the frame is connected to the shelf via the connecting rail.

[0022] The frame is constructed as a part of the shelf, and the connecting rail is correspondingly a part of the cross rail.

[0023] In a second aspect, the utility model further provides a charging device for charging an AGV in a stereoscopic warehouse, comprising the fire prevention device described in the above technical solution, and the charging device further comprises:

[0024] a connecting rail extending along the first direction, each connecting rail being mounted on a step seat on a corresponding side; and

[0025] The charging pile installed in the groove includes a rectangular charging pile body and a charging port for adapting to a charging head of an AGV and arranged at one end of the charging pile body along the first direction.

[0026] Optionally, the charging pile body is further provided with a cover which can be flipped up and down on a side close to the charging port.

[0027] In a third aspect, the utility model further provides a three-dimensional warehouse, comprising the fire prevention device described in the above technical solution or the charging device described in the above technical solution.

[0028] By utilizing the technical solution according to the embodiment of the utility model, the beneficial effects that can be obtained are at least:

[0029] 1. According to the fire prevention device of the utility model, the AGV can run directly to the frame through the connecting track connected to the cross track of the storage layer, and charge after reaching the predetermined position of the frame and connecting with the charging pile. If combustion and explosion occur during the charging process, the fire extinguishing ball suspended under each layer of the partition will burn the fire extinguishing fuse wrapped on the surface after encountering an open flame, and then drive the inner core explosion device to automatically spray dry powder, so as to achieve the effect of automatic fire extinguishing. Therefore, the fire prevention device of the utility model is convenient for AGV charging and also has a fire extinguishing effect.

[0030] 2. The fire extinguishing ball in the fire protection device of the present invention can be detachably connected to the bottom of the partition and / or the bottom of the top plate above the charging pile through a mounting frame and an adapter frame, etc., so as to facilitate the installation and replacement of the fire extinguishing ball.

[0031] Additional advantages, purposes, and features of the present invention will be partially described in the following description, and will become partially apparent to those skilled in the art after studying the following, or may be learned from the practice of the present invention. The purposes and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0032] Those skilled in the art will understand that the purposes and advantages that can be achieved by the present invention are not limited to the above specific description, and the above and other purposes that can be achieved by the present invention will be more clearly understood based on the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present invention, and do not constitute a limitation of the present invention. The components in the drawings are not drawn to scale, but are only for the purpose of illustrating the principles of the present invention. In order to facilitate the illustration and description of some parts of the present invention, the corresponding parts in the drawings may be enlarged, that is, they may become larger relative to other components in the exemplary device actually manufactured according to the present invention. In the drawings:

[0034] Figure 1 It is an overall schematic diagram of a fire prevention device for charging an AGV in a stereoscopic warehouse according to an embodiment of the utility model, and the AGV is also shown in the figure;

[0035] Figure 2 is another overall schematic diagram of a fire protection device according to an embodiment of the utility model, in which an AGV is also shown;

[0036] Figure 3 It is a partial structural schematic diagram of a fire protection device according to an embodiment of the utility model;

[0037] Figure 4 It is a schematic diagram of a mounting frame in a fire protection device according to an embodiment of the utility model;

[0038] Figure 5 is a schematic diagram of an adapter frame in a fire protection device according to an embodiment of the utility model; and

[0039] Figure 6 The figure is an overall schematic diagram of a charging device for charging an AGV in a stereoscopic warehouse according to an embodiment of the utility model.

[0040] Description of reference numerals:

[0041] 100. Fire prevention device;

[0042] 110. Framework;

[0043] 111, support frame; 1111, column; 1112, horizontal tie rod; 1113, diagonal tie rod;

[0044] 112. Partition;

[0045] 113. Top plate;

[0046] 114. Strengthen the connecting rod;

[0047] 120, support plate; 121, groove; 122, step seat;

[0048] 130. Fire extinguisher ball;

[0049] 140. Flame retardant board;

[0050] 150, mounting frame; 151, connecting plate; 152, mounting plate; 153, bolt hole;

[0051] 160, adapter frame; 161, connecting bolt; 162, U-shaped frame; 163, hanging rod;

[0052] L1, first direction;

[0053] L2, second direction;

[0054] 200. Charging device;

[0055] 210, connecting tracks;

[0056] 220, charging pile; 221, charging pile body; 222, charging port; 223, cover. DETAILED DESCRIPTION

[0057] By referring to the exemplary embodiments, the purposes and functions of the present invention and the methods for achieving these purposes and functions will be explained. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in different forms. The essence of the description is only to help technicians in the relevant field to comprehensively understand the specific details of the present invention.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0059] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0060] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in this document are for illustrative purposes only and are not limiting.

[0061] The utility model provides a fire prevention device 100 for charging an AGV in a stereoscopic warehouse. The fire prevention device 100 provided by the utility model can be applied to the field of storage equipment, such as a stereoscopic warehouse, to solve the problem of inconvenient and unsafe charging of AGVs running in existing stereoscopic warehouses.

[0062] The stereoscopic warehouse includes high-density vertical shelves arranged in the warehouse. The shelves can be divided into multiple storage areas according to needs, such as normal temperature area, cold storage area, etc. Each storage area has multiple storage layers for storing cargo boxes that can be accessed by AGV. Each storage layer is equipped with a cross track for AGV to travel horizontally. Of course, the above solution is the existing technology in this field and will not be repeated here.

[0063] In a preferred embodiment, Figure 1 As shown, Figure 1 The overall schematic diagram of the fire prevention device 100 for charging an AGV in a three-dimensional warehouse according to an embodiment of the utility model is shown in the figure. The AGV is also shown in the figure. It should be noted that, in order to simplify the drawing, Figure 1 Only one charging pile 220 is shown, and some structures such as the flame retardant plate 140 are hidden. Figure 2 , Figure 3 and Figure 6 Such simplified processing is also adopted. The fire protection device 100 includes a frame 110, a support plate 120 and a fire extinguishing ball 130. The frame 110 is an integral support frame 111 structure of the fire protection device 100, which is used to support and install other devices. The support plate 120 is an important component of the fire protection device 100, which is used to install the charging pile 220 and the connecting track 210. The fire extinguishing ball 130 is used to automatically extinguish the fire when the AGV is charging.

[0064] refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 2 FIG. 1 is another overall schematic diagram of a fire protection device 100 according to an embodiment of the present invention, in which an AGV is also shown. Figure 3FIG. 1 is a partial structural diagram of a fire protection device 100 according to an embodiment of the present invention.

[0065] Specifically, the erected frame 110 includes at least two rows of vertical support frames 111. For example, there may be two rows of vertical support frames 111, three rows of vertical support frames 111, or other number of rows of vertical support frames 111 as required. Horizontal partitions 112 corresponding to the number of storage layers are arranged between two adjacent support frames 111 in the vertical direction. For example, if the storage partition has four storage layers, four partitions 112 may be arranged between two adjacent support frames 111. The partitions 112 may be spaced at equal distances or at unequal distances. A top plate 113 is arranged at the top opening of the frame 110 to close the top opening. Among them, a space is reserved between two adjacent support frames 111 and above the partition 112 for the AGV to pass horizontally along the first direction L1, so that an AGV with a certain height can pass through or enter the frame 110 smoothly.

[0066] Furthermore, the specific form of the support frame 111 may not be limited. In order to provide a support frame 111 that is simple in structure, stable and practical, the support frame 111 may include two columns 1111 arranged along the first direction L1. A transverse tie rod 1112, or a diagonal tie rod 1113, or a transverse tie rod 1112 and a diagonal tie rod 1113 may be provided between the two columns 1111 for strengthening the connection. In addition, a strengthening connecting rod 114 may be provided at other positions between two adjacent support frames 111, outside the space for the AGV to pass horizontally along the first direction L1.

[0067] refer to Figure 1 , the vertical support plate 120 is extended and arranged along the second direction L2. The support plate 120 is arranged at both ends of the partition 112 along the first direction L1, or between two adjacent support frames 111. The support plate 120 includes a downwardly recessed groove 121 located in the middle, and the groove 121 is used to install a charging pile 220 for charging the AGV. The groove 121 can be a square groove 121 or a groove 121 of other shapes to adapt to the shape of the charging pile 220 body. A step seat 122 that communicates with the groove 121 is provided on both sides above the groove 121. The step seat 122 is used to install a connecting track 210 extending along the first direction L1 for connecting cross tracks. Among them, the second direction L2 is perpendicular to the first direction L1.

[0068] The support plate 120 and the partition 112 may be an integrated structure to improve structural stability. Alternatively, the support plate 120 and the partition 112 may also be a split structure. Preferably, the bottom surface of the groove 121 of the support plate 120 may be flush with the partition 112. In this way, when the charging pile 220 is installed in the groove 121, it can also be supported upward by the partition 112, thereby improving installation stability.

[0069] The fire extinguishing ball 130 is installed at the bottom of the partition 112 and the bottom of the top plate 113 above the charging pile 220, so that there is a fire extinguishing ball 130 above each charging pile 220 installed on the partition 112. Among them, the fire extinguishing ball 130 adopts the existing technical device, which will not be described in detail here.

[0070] For example, the fire extinguishing ball 130 can be installed at the bottom of the partition 112 and the bottom of the top plate 113 by means of a mounting frame 150, such as an I-shaped mounting frame 150. The mounting frame 150 includes a mounting plate 152 disposed at the bottom of the corresponding partition 112 or the bottom of the top plate 113. The fire extinguishing ball 130 is suspended on the mounting plate 152 by means of a hook or other structure. A gap may be left between the mounting plate 152 and the bottom of the corresponding partition 112 or the bottom of the top plate 113. Both ends of the mounting plate 152 may be fixed to the bottom of the partition 112 or the bottom of the top plate 113 by means of a connecting plate 151.

[0071] According to the fire prevention device 100 of the utility model, when the AGV needs to be charged, it can directly run to the frame 110 through the connecting track 210 connected to the cross track of the storage layer, and after reaching the predetermined position of the frame 110 and being electrically connected to the charging pile 220, the AGV can be charged. If combustion and explosion occur during the charging process of the AGV, the fire extinguishing ball 130 suspended at the center of each layer of the partition 112 will burn the fire extinguishing fuse wrapped on the surface after encountering an open flame, and then drive the core explosion device to automatically spray dry powder, thereby achieving the effect of automatic fire extinguishing.

[0072] It is conceivable that when the AGV burns and explodes due to charging, the fire protection device 100 automatically extinguishes the fire through the fire extinguishing ball 130, and the fire extinguishing ball 130 needs to be replaced later. In order to facilitate the replacement of the fire extinguishing ball 130, the fire extinguishing ball 130 can be connected to the bottom of the partition 112 and the bottom of the top plate 113 above the charging pile 220 in a detachable connection manner. There is no limitation on the detachable connection method.

[0073] Further, in order to provide a detachable connection method that is firm and easy to assemble and disassemble, reference Figure 3 , Figure 4 and Figure 5, the bottom of the partition 112 or the bottom of the top plate 113 can be connected to the fire extinguishing ball 130 through the mounting frame 150 and the adapter frame 160. The mounting plate 152 of the mounting frame 150, which is spaced a certain distance from the corresponding bottom of the partition 112 or the bottom of the top plate 113, can be provided with a bolt hole 153. The lower part of the mounting plate 152 is connected to the adapter frame 160 through the connecting bolt 161 passing vertically upward through the bolt hole 153. The adapter frame 160 includes a U-shaped frame 162 through which the connecting bolt 161 passes. A hanging rod 163 is horizontally arranged between the bottoms of the U-shaped frame 162. Among them, the fire extinguishing ball 130 is hung on the hanging rod 163 via a hook (not shown). The number of bolt holes 153 can be one, two or other suitable numbers. The number of connecting bolts 161 is adjusted accordingly. The mounting plate 152 is spaced a certain distance from the corresponding bottom of the partition 112 or the bottom of the top plate 113, so that the connecting bolt 161 has room to move after passing through the mounting plate 152 upward. The hanging rod 163 can be a screw rod, a plain rod or other connecting rods.

[0074] Continue to refer Figure 1 The outer side of the frame 110 may also be covered with a flame retardant plate 140 at the remaining position outside the space for the AGV to pass horizontally along the first direction L1. By covering the flame retardant plate 140 on the outer side of the frame 110, the spread of fire can be prevented when combustion occurs, thereby improving the safety of use. The flame retardant plate 140 may be a magnesium oxysulfide fire retardant plate 140, which has good flame retardant properties and can effectively prevent the spread of fire.

[0075] In addition, the top plate 113 may also be a top plate 113 made of a flame retardant plate 140 to improve the flame retardant effect.

[0076] According to the fire protection device 100 of the present invention, the frame 110 can be separately arranged in the warehouse at a certain distance from the shelf (not shown), and the frame 110 is connected to the shelf via the connecting track 210. Alternatively, the frame 110 can also be a part of the shelf, and the connecting track 210 is correspondingly a part of the cross track.

[0077] In summary, according to the fire prevention device 100 of the utility model, the AGV can directly run to the frame 110 through the connecting track 210 connected to the cross track of the storage layer, and charge after reaching the predetermined position of the frame 110 and connecting with the charging pile 220; if combustion and explosion occur during the charging process, the fire extinguishing ball 130 suspended under each layer of the partition 112 will burn the fire extinguishing fuse wrapped on the surface after encountering an open flame, and then drive the core explosion device to automatically spray dry powder to achieve the effect of automatic fire extinguishing. The flame retardant plate 140 covering the outside of the frame 110 can prevent the spread of fire and improve the safety of use. In addition, the fire extinguishing ball 130 is detachably connected to the bottom of the partition 112 and the bottom of the top plate 113 above the charging pile 220 through structures such as the mounting frame 150 and the adapter frame 160, which is convenient for the installation and replacement of the fire extinguishing ball 130.

[0078] refer to Figure 6 In a second aspect, the utility model further provides a charging device 200 for charging an AGV in a stereoscopic warehouse, comprising the fire prevention device 100 of the above technical solution. The charging device 200 further comprises a connecting track 210 extending along the first direction L1 and a charging pile 220 installed in the groove 121.

[0079] Each connecting rail 210 is installed on the step seat 122 on the corresponding side. Two connecting rails 210 are installed side by side in one support plate 120 for the AGV to travel. The charging pile 220 includes a rectangular charging pile 220 body and a charging port 222 for adapting to a charging head (not shown) of the AGV and arranged at one end of the charging pile 220 body along the first direction L1.

[0080] Furthermore, the charging pile 220 body may be provided with a cover 223 that can be flipped up and down on one side near the charging port 222. Figure 2 , at this time, the cover is flipped upward to the closed state. Figure 6 At this time, the cover is flipped downward to an open state so that the charging head of the AGV can dock with the charging port 222 of the charging pile 220 to achieve charging.

[0081] In a third aspect, the utility model further provides a three-dimensional warehouse (not shown), comprising the fire prevention device 100 of the above technical solution or the charging device 200 of the above technical solution.

[0082] Therefore, all the features and effects of the three-dimensional warehouse provided according to the utility model, including the fire prevention device 100 of the above technical solution or the charging device 200 of the above technical solution, are not described in detail here.

[0083] In combination with the description and practice of the utility model disclosed herein, other embodiments of the utility model are easy to think of and understand for those skilled in the art. The description and embodiments are considered to be exemplary only, and the true scope and spirit of the utility model are defined by the claims.

Claims

1. A fire prevention device for AGV charging in a stereoscopic warehouse, wherein the stereoscopic warehouse comprises vertical shelves arranged in the warehouse and a plurality of storage layers arranged in the storage partitions of the shelves, each of the storage layers is equipped with a cross track for AGV horizontal travel, characterized in that: The fire protection device comprises: An upright frame, the frame comprising at least two rows of vertical support frames, horizontal partitions arranged between two adjacent support frames and spaced in a vertical direction and corresponding to the number of storage layers, and a top plate arranged to the top opening; wherein a space is reserved between the two adjacent support frames and above the partition for the AGV to pass horizontally along a first direction; A vertical support plate extending in the second direction, the support plate being arranged at both ends of the partition in the first direction or between the two adjacent support frames, the support plate comprising a downwardly recessed groove in the middle and step seats communicating with the groove arranged on both sides above the groove, the groove being used to install a charging pile for charging the AGV, and the step seats being used to install a connecting track extending in the first direction for connecting the cross track; wherein the second direction is perpendicular to the first direction; and A fire extinguishing ball is installed to the bottom of the partition above the charging pile and / or the bottom of the top plate.

2. The fire protection device according to claim 1, characterized in that: The fire extinguishing ball is detachably connected to the bottom of the partition above the charging pile and / or the bottom of the top plate.

3. The fire protection device according to claim 1 or 2, characterized in that: A mounting frame is provided at the bottom of the partition and / or the bottom of the top plate, and the mounting frame includes a mounting plate provided with bolt holes at a certain distance from the corresponding bottom of the partition or the bottom of the top plate, and the bottom of the mounting plate is connected to the adapter frame via connecting bolts passing vertically upward through the bolt holes, and the adapter frame includes a U-shaped frame passing through the connecting bolts, and a hanging rod is horizontally provided between the bottoms of the U-shaped frames; wherein the fire extinguishing ball is hung on the hanging rod via a hook; and / or The support plate and the partition plate are of an integrated structure or a split structure.

4. The fire protection device according to claim 3, characterized in that: The bottom surface of the groove of the support plate is flush with the partition plate.

5. The fire protection device according to claim 1, characterized in that: The outer side of the frame is further covered with a flame retardant plate at the remaining position outside the space for the AGV to pass horizontally along the first direction; and / or The top plate is made of a flame retardant plate.

6. The fire protection device according to claim 1, characterized in that: The support frame comprises two columns arranged along a first direction, and a lateral tie rod and / or a diagonal tie rod for strengthening the connection is arranged between the two columns; and / or A reinforcing connecting rod is further provided between the two adjacent supporting frames at the remaining positions outside the space for the AGV to pass horizontally along the first direction.

7. The fire protection device according to claim 1, characterized in that: The frame is configured to be arranged in a warehouse at a certain distance from the shelf, and the frame is connected to the shelf via the connecting rail; or The frame is constructed as a part of the shelf, and the connecting rail is correspondingly a part of the cross rail.

8. A charging device for AGV charging in a stereoscopic warehouse, comprising the fire prevention device according to any one of claims 1 to 7, characterized in that: The charging device also includes: a connecting rail extending along the first direction, each connecting rail being mounted on a step seat on a corresponding side; and The charging pile installed in the groove includes a rectangular charging pile body and a charging port for adapting to a charging head of an AGV and arranged at one end of the charging pile body along the first direction.

9. The charging device according to claim 8, characterized in that: The charging pile body is also provided with a cover which can be flipped up and down on one side close to the charging port.

10. A three-dimensional library, characterized in that: The invention comprises a fire protection device as claimed in any one of claims 1 to 7 or a charging device as claimed in claim 8 or 9.

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