Storage device

Abstract

The embodiment of the utility model provides a warehousing device which comprises a storage shelf and at least one layer changing track, the storage shelf is provided with a plurality of storage layers used for storing goods in the vertical direction, each storage layer is provided with a walking track for a carrier to walk, and the layer changing track has a gradient. Each layer changing rail is connected between two different storage layers in the multiple storage layers, the two ends of each layer changing rail are in butt joint with the walking rails, and the layer changing rails are constructed to be used for a carrier to walk and / or convey goods. The cost of the layer-changing track can be far lower than that of a lifting mechanism no matter the cargoes walk along the layer-changing track through a carrying vehicle and are carried between the storage layers or conveyed between the storage layers through the layer-changing track. In addition, a plurality of carriers can pass through the layer changing track at the same time, or a plurality of cargoes can be conveyed among different layers through the layer changing track at the same time, and the layer changing efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics warehousing, and in particular to a warehousing device. Background Art

[0002] With the continuous acceleration of industrial progress, the scale of logistics is expanding. As an important link in logistics transportation, how to reduce the transportation cost and risk of this link has become an urgent problem to be solved.

[0003] Logistics transportation is usually equipped with modern warehouses for storage and transfer of goods. The storage shelves in the warehouse are usually designed with multiple storage layers in the vertical direction. The goods are placed in layers, so as to place as many goods as possible in a limited area and improve the utilization of space. In each storage layer, the transportation of goods can be completed by a transport vehicle such as a four-way vehicle. The transportation of goods between storage layers usually requires the installation of a lifting mechanism, which can be analogous to an elevator and is used to perform layer-changing operations for transport vehicles and goods.

[0004] The above lifting mechanism can usually only realize the layer change of one vehicle and / or one pallet of goods at a time, which is inefficient. Moreover, the cost of a common lifting mechanism with a 10-meter travel is several hundred thousand yuan, which is relatively costly. Utility Model Content

[0005] In order to at least partially solve the problems existing in the prior art, an embodiment of the utility model provides a storage device, including: a storage shelf and at least one layer changing track; the storage shelf has multiple storage layers for storing goods in the vertical direction, and each storage layer is provided with a walking track for a transport vehicle to travel; the layer changing track has a slope, each layer changing track is connected between two different storage layers in the multiple storage layers, and the two ends of the layer changing track are connected to the walking track, and the layer changing track is constructed for the transport vehicle to travel and / or transport goods.

[0006] Exemplarily, the layer changing track includes: a plurality of segments extending along the extension direction of the layer changing track and connected to each other, the plurality of segments including: a first arc segment and a second arc segment spaced apart along the extension direction, the first arc segment and the second arc segment having inner ends opposite to each other and outer ends opposite to each other; and a middle segment extending along the extension direction, the two ends of the middle segment being smoothly connected to the inner end of the first arc segment and the inner end of the second arc segment, respectively, and the middle segment being straight or arc-shaped.

[0007] Exemplarily, an outer end of the first arc segment is connected to a walking track of an upper storage layer of two different storage layers.

[0008] Exemplarily, the outer end of the second arc segment is connected to the walking track of the lower storage layer of the two different storage layers.

[0009] Exemplarily, the layer-changing track further includes a first straight line segment connected to the outer end of the first arc segment.

[0010] Exemplarily, the layer changing track also includes a second straight line segment connected to the outer end of the second arc segment; the first straight line segment is connected to the walking track of the upper storage layer in the two different storage layers, and the second straight line segment is connected to the walking track of the lower storage layer in the two different storage layers.

[0011] Exemplarily, the layer-changing track is formed in one piece or is formed by splicing a plurality of sections.

[0012] Exemplarily, the layer-changing track is in an S-shaped curve.

[0013] Exemplarily, the walking track includes a sub-track and a main track which are perpendicular to each other; wherein, the upper part of the sub-track is used to store goods, the upper end of the layer changing track is connected to the main track of the upper storage layer, and the lower end of the layer changing track is connected to the main track of the lower storage layer.

[0014] Exemplarily, the upper end of the layer-changing track is perpendicular to the mother track of the upper storage layer and is aligned with the child track of the upper storage layer.

[0015] Exemplarily, the lower end of the layer-changing track is perpendicular to the mother track of the lower storage layer and is aligned with the child track of the lower storage layer.

[0016] Exemplarily, the layer-changing track is perpendicular to the mother track.

[0017] Exemplarily, the upper end of the layer-changing track is butted against the mother track of the upper storage layer along the extension direction of the mother track of the upper storage layer.

[0018] Exemplarily, the lower end of the layer-changing track is butted against the mother track of the lower storage layer along the extension direction of the mother track of the lower storage layer.

[0019] Exemplarily, a plurality of layer-changing tracks are arranged between two different storage layers; the plurality of layer-changing tracks have the same slope direction, or the plurality of layer-changing tracks have two opposite slope directions.

[0020] Exemplarily, for any one of the layer-changing tracks, the layer-changing track is connected to two storage layers adjacent in the vertical direction.

[0021] Exemplarily, for any one of the layer-changing tracks, the layer-changing track is connected to two storage layers that are not adjacent in the vertical direction.

[0022] Exemplarily, the upper end and the lower end of each layer-changing rail are located in different vertical planes.

[0023] Exemplarily, the slope at any point on the track is less than or equal to tan20°.

[0024] Exemplarily, the storage device further comprises a plurality of track columns, and the layer-changing track is fixed to the plurality of track columns.

[0025] Exemplarily, multiple groups of positioning parts are arranged along the vertical direction of each track column, and the layer-changing track includes a positioning adapter part, which can be connected to any group of the multiple groups of positioning parts. The positioning adapter part is connected to a suitable positioning part according to its height relative to the multiple track columns.

[0026] Exemplarily, the storage device further comprises a plurality of storage shelf columns, the multi-layer storage shelves are fixed to the plurality of storage shelf columns, and each of the plurality of storage shelf columns has the same structure as the track column.

[0027] Through the above technical solution, whether the goods are transported between storage layers by a transport vehicle walking along the layer-changing track, or are transferred between storage layers through the layer-changing track, the cost of the layer-changing track can be much lower than that of the lifting mechanism. By setting up the layer-changing track, the lifting mechanism can be replaced to reduce the layer-changing cost. In addition, multiple transport vehicles can pass through the layer-changing track at the same time, or multiple goods can be transferred between different layers through the layer-changing track at the same time, which can greatly improve the layer-changing efficiency. The two ends of the walking track and the layer-changing track are docked, and the transport vehicle can enter the layer-changing track along the walking track, which reduces the control difficulty and also reduces the risk of derailment.

[0028] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0029] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0031] Figure 1A A side view of a storage device according to an exemplary embodiment of the present application is shown;

[0032] Figure 1B Shows Figure 1A A top view of the storage device shown;

[0033] Figure 1C Shows Figure 1A A perspective view of a portion of the storage device shown;

[0034] Figure 2 A side view of a storage device according to another exemplary embodiment of the present application is shown;

[0035] Figure 3 A side view of a storage device according to another exemplary embodiment of the present application is shown;

[0036] Figure 4 A schematic diagram of a storage rack and a layer-changing track according to an exemplary embodiment of the present application is shown;

[0037] Figure 5 A top view showing an upper storage layer and a lower storage layer of a storage device according to another exemplary embodiment of the present application;

[0038] Figure 6 A schematic diagram showing the assembly of a layer-changing track and a track column according to an exemplary embodiment of the present application; and

[0039] Figure 7 A front view of a portion of a storage rack according to an exemplary embodiment of the present application is shown.

[0040] The above drawings include the following reference numerals:

[0041] 100, storage shelf; 101, 102, 103, storage layer; 110, sub-track; 111, cargo support surface; 112, walking surface; 120, mother track; 130, first part; 140, second part; 200, 200', 200", 200"', 200"", layer change track; 201, first arc segment; 201", horizontal segment; 202, second arc segment; 202", inclined segment ; 203, middle section; 203", corners; 204, first straight section; 205, second straight section; 210, 210", first layer-changing track; 220, 220", second layer-changing track; 230, positioning adapter; 231, protrusion; 300, transport vehicle; 400, track column; 410, limit hole; 420, fastening hole; 500, fastener; 600, goods; 700, shelf column. DETAILED DESCRIPTION

[0042] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0043] In order to thoroughly understand the implementation of the utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred implementation of the utility model is described in detail below, but in addition to these detailed descriptions, the utility model can also have other implementations.

[0044] An embodiment of the utility model provides a storage device, the storage device includes a storage shelf, the storage shelf has multiple storage layers for storing goods in the vertical direction, and goods need to be exchanged between different storage layers. Each storage layer is provided with a walking track for a transport vehicle to travel. The storage device also includes at least one layer-changing track, the layer-changing track has a slope, each layer-changing track is connected between two different storage layers in the multiple storage layers, and the two ends of the layer-changing track are connected to the walking track, and the layer-changing track is configured to allow the transport vehicle to travel and / or transport goods.

[0045] Figure 1A to Figure 1B They are respectively a side view and a top view of a storage device according to an exemplary embodiment of the present application. Figure 1A and Figure 1B In the figure, only part of the storage device is drawn. In actual application, the height, number of layers and number of cargo spaces on each layer of the storage device can be set according to actual needs. Figure 1A and Figure 1B This is just an example description for ease of understanding and does not constitute a limitation on the storage device. The storage rack 100 of the storage device can be a common rack, or any existing rack such as a container rack, or a new type of rack that may appear in the future. Each storage layer can be provided with a large number of regularly arranged cargo spaces. Figure 1B As shown, for each storage layer, more cargo spaces may be provided along the transverse direction XX. For example, the cargo spaces may be provided along the transverse direction XX on the side of the storage rack 100 described in the current figure, or on the side of the layer-changing track 200. Different storage layers of the storage rack 100 may be connected by the layer-changing track 200 to achieve layer-changing of goods and / or transport vehicles.

[0046] For the storage device, a running track can be set so that the transport vehicle 300 can run on the running track. In this way, the transport vehicle 300 only needs to run along the running track, and there is almost no deviation in direction. This can greatly reduce the difficulty required for positioning the transport vehicle 300, and the positioning accuracy can be guaranteed without setting up complex sensors and algorithms. Optionally, a hard limit may also be set on the running track to prevent the transport vehicle 300 from derailing.

[0047] like Figure 1AAs shown, the storage shelf on the left side of the layer changing track and the storage shelf on the right side of the layer changing track can be regarded as the same storage shelf 100, and the storage shelf 100 includes three storage layers 101, 102 and 103. A layer changing track 200 is connected between the storage layers 101 and 102, and a layer changing track 200 is connected between the storage layers 102 and 103. In addition, layer changing can be achieved between every two storage layers through one or more sets of layer changing tracks 200. In the case where there are multiple sets of layer changing tracks 200 between every two storage layers, these layer changing tracks 200 can be arranged side by side. Figure 1B As shown, three sets of layer-changing tracks 200 are arranged side by side. In other embodiments not shown, multiple sets of layer-changing tracks 200 can be dispersed at any suitable position of the storage shelf 100. In the case where multiple sets of layer-changing tracks 200 are present between every two storage layers, part or all of these layer-changing tracks 200 can be unidirectional, that is, only used to change the layers of goods upward, or only used to change the layers of goods downward. Of course, the layer-changing track 200 can also be bidirectional, which can realize the upward and downward layer-changing of goods. In this case, at any time, there may only be goods changing layers upward, or there may be goods changing layers downward. It can be understood that when a set of layer-changing tracks 200 is provided between two storage layers, the layer-changing track 200 can usually be bidirectional. The walking track can be docked with the two ends of the layer-changing track 200, and the transport vehicle 300 can enter the layer-changing track 200 along the walking track. There is no deviation between the wheel and the track, and there is no need to identify the position of the layer-changing track 200, which reduces the control difficulty and also reduces the risk of derailment.

[0048] Continue to refer Figure 1A For example, the storage layers 101, 102 and 103 may be arranged adjacent to each other in the vertical direction. In this case, the height of each set of layer changing rails 200 in the vertical direction may substantially correspond to the height of one storage layer. Optionally, the multi-layer storage layer may also include a plurality of storage layers that are not adjacent to each other in the vertical direction in the storage rack 100. Figure 2 As shown, the storage layers 101 and 102 are not arranged adjacent to each other in the vertical direction. In this case, the height of the layer changing track 200' in the vertical direction can roughly correspond to the height of the two storage layers. In other words, a layer changing track 200 can be set between every two adjacent storage layers, or a layer changing track 200' can be set across layers, or two types of layer changing tracks can be mixed. In short, for ease of understanding, for two storage layers at different heights, the relatively higher storage layer can be referred to as the upper storage layer, and the relatively lower storage layer can be referred to as the lower storage layer. Figure 2In the illustrated embodiment, the layer changing track 200' spans one storage layer and is connected between two storage layers separated by one storage layer. In other embodiments, the layer changing track can also be set across more storage layers. The specific number of layers spanned by the layer changing track can be set according to the actual layer changing needs of the goods. In addition, for different situations, those skilled in the art can reasonably arrange the types of layer changing tracks 200, so as to take into account the difficulty of the transport vehicle 300 walking on the layer changing track 200 and the space occupied by the layer changing track 200. The present application also does not exclude the embodiment in which the layer changing track 200 is mixed with the lifting mechanism.

[0049] exist Figure 1A and Figure 1B In the illustrated embodiment, the layer-changing track 200 may be a non-powered track. Each set of layer-changing tracks 200 may include two tracks that correspond to the wheelbase of the cart 300 and are separated from each other; it may also include a complete plane or curved surface, such as a slope built with steel plates. When transporting goods between different layers, the cart 300 is required to carry the goods and move from the layer-changing track 200 to other layers. As shown in the figure, when the cart 300 moves along the layer-changing track 200 to the upper storage layer, the cart 300 will tilt. Based on a simple force analysis, it can be concluded that when the cart 300 moves on the layer-changing track 200, it is necessary to ensure that the friction between the wheels of the cart 300 and the track is not less than the component of gravity on the plane. The magnitude of the friction force F 摩 =μF n , μ is the sliding friction coefficient, that is, the friction force F 摩 With pressure F n The pressure is proportional to the component of gravity perpendicular to the plane. Therefore, the greater the slope of the layer changing track 200, the more difficult it is for the transport vehicle 300 to move to a higher storage layer through the layer changing track 200. The transport vehicle 300 also needs to carry goods. After the goods are loaded, the center of gravity of the goods is higher than the transport vehicle 300. If the height of the goods is too high, even if the transport vehicle 300 can be provided with a fence to prevent the goods from sliding, when the transport vehicle 300 passes through the layer changing track 200, the plumb line of the center of gravity of the goods may exceed the fence, causing the goods to roll off the transport vehicle 300. Therefore, it is necessary to reasonably set the slope of the layer changing track 200 to ensure that the transport vehicle 300 can carry goods between different layers through the layer changing track 200 while carrying goods. For storage shelves with a standard height of the storage layer (for example, about 1.8m to 2m), such as Figure 1AIn the specific embodiment shown, the layer changing track 200 can occupy six cargo positions in the horizontal direction and one layer in the vertical direction. In this way, the slope of the layer changing track 200 can be smaller, effectively preventing the transport vehicle 300 from sliding down or the cargo from rolling down. For storage shelves with shorter storage layers, the layer changing track 200 can occupy fewer cargo positions in the horizontal direction. For example, for storage shelves with a storage layer height of less than 1m, the layer changing track can occupy three cargo positions in the horizontal direction. For storage shelves with higher storage layers, the layer changing track can occupy more cargo positions in the horizontal direction. It is easy to understand that the fewer cargo positions occupied in the horizontal direction, the smaller the floor space occupied by the layer changing track 200, and the saved space can be used to store more cargo. The layer changing track 200 occupies more cargo positions in the horizontal direction in order to ensure the function of the layer changing track 200.

[0050] Exemplarily, the upper end and the lower end of each layer-changing track are located in different vertical planes. It is understandable that if the upper end and the lower end of each layer-changing track are located in the same vertical plane, then the layer-changing track will be perpendicular to the horizontal plane, and it is almost impossible for the existing transport vehicle 300 to walk along the vertical layer-changing track. As described above, the slope of the layer-changing track cannot be too large, otherwise the transport vehicle 300 may slide down or the goods may roll off. In the following description, parameters including the slope of the layer-changing track will be specifically determined. The layer-changing track 200 may include a straight track or a curved track. For a straight layer-changing track, the maximum slope value can be easily determined; for a curved layer-changing track, the slope at the position with the maximum degree of curvature can be taken as the maximum slope value of the inclined surface. Exemplarily, the slope of any point on the track is less than or equal to tan20°. In other words, whether it is a straight layer-changing track or a curved layer-changing track, the maximum slope value of any point is not greater than tan20°. In this range, the risk of the cargo carried by the transport vehicle 300 tipping over is small, and the transport vehicle 300 can obtain sufficient friction and will not slip on the layer-changing track. At the same time, the chassis of the transport vehicle 300 will not scrape against the layer-changing track 200 or the running track.

[0051] In another specific embodiment, the layer-changing track 200 may include a power device. The transport vehicle 300 may carry the goods to the layer-changing track 200, and the power device of the layer-changing track 200 drives the transport vehicle 300 and the goods to go to the upper storage layer or the lower storage layer along the layer-changing track 200. The power device may include a conveyor belt, etc., and the transport vehicle 300 and the conveyor belt may be fixed by, for example, a magnet, etc., so as to prevent the transport vehicle 300 and the conveyor belt from sliding relative to each other. The transport vehicle 300 may interact with the controller of the power device of the layer-changing track 200 by means of near field communication (NFC), infrared communication, local area network, etc., so as to make the power device work in a suitable direction. It is also possible to remotely control the power device to drive the transport vehicle 300 and the goods to go to the upper storage layer or the lower storage layer along the layer-changing track 200 according to the scheduling of the warehouse when the transport vehicle 300 arrives at the layer-changing track 200. In other embodiments, the layer-changing track 200 may only change the layers of the goods. In other words, the transport vehicle 300 may not walk on the layer-changing track. Specifically, temporary storage positions for goods can be set at both ends of the layer change track 200. The transport vehicle 300 on the current storage layer can place the goods at the end of the layer change track connected to the current storage layer, and then the transport vehicle 300 on the current storage layer can leave and continue to perform the cargo handling operation in the current storage layer. The goods located at the temporary storage position for goods can be transferred by the layer change track 200 to the temporary storage position for goods at the other end, and then the transport vehicle 300 of the storage layer can transport the goods from the temporary storage position for goods to the target location.

[0052] The layer-changing track 200 may include a straight track or a curved track. For some transport vehicles 300, they may have a higher chassis. Even if the layer-changing track 200" includes a horizontal section 201" and an inclined section 202" that are directly connected, such as Figure 3 As shown, the turning point where the corner 203" appears on the layer-changing track 200" can also be well adapted, and there will be no problems of the chassis scratching the corner 203" or the wheels hanging in the air. For the storage rack 100 using this type of transport vehicle 300, a straight layer-changing track can be directly used to connect the upper storage layer to be changed and the lower storage layer. At this time, corners can be allowed to appear at the connection between the layer-changing track and the walking track. If the chassis of the transport vehicle 300 is low, when passing through the corner 203", the chassis may contact the corner 203", resulting in the wheels hanging in the air, slipping, etc. In this regard, a curved track with a suitable curvature can be selected to avoid the above-mentioned corners, so that the chassis of the transport vehicle 300 will not contact the track surface, the wheels can always form a good contact with the layer-changing track 200, and there is a suitable friction between the two, so as to realize the transportation of goods between the upper storage layer and the lower storage layer through the layer-changing track 200.

[0053] Through the above technical solution, goods can be transported between different storage layers of the storage shelf 100. Whether the goods are transported between different storage layers by the transport vehicle 300 walking along the layer change rails 200, 200' and 200", or are transferred between different storage layers by the layer change rails 200, 200' and 200", the cost of such layer change rails 200, 200' and 200" can be much lower than the lifting mechanism. By setting up the layer change rails, the lifting mechanism can be replaced, the efficiency of layer change can be improved, and the cost performance is higher. In addition, multiple transport vehicles 300 can pass through the layer change rails 200 at the same time, or multiple goods can be transferred between different layers through the layer change rails 200 at the same time, thereby greatly improving the layer change efficiency. The walking track is docked with the two ends of the layer change rail 200, and the transport vehicle 300 can enter the layer change rail 200 along the walking track, which reduces the control difficulty and also reduces the risk of derailment.

[0054] For example, return to Figure 1A The layer changing track 200 may include a plurality of segments extending along the extension direction of the layer changing track 200 and connected to each other, the plurality of segments including: a first arc segment 201 and a second arc segment 202 spaced apart along the extension direction, the first arc segment 201 and the second arc segment 202 having inner ends opposite to each other and outer ends opposite to each other; and a middle segment 203 extending along the extension direction, the two ends of the middle segment 203 being smoothly connected to the inner end of the first arc segment 201 and the inner end of the second arc segment 202, respectively, and the middle segment 203 being straight or arc-shaped.

[0055] For example, the multiple segments connected to each other can be integrally formed. Figure 3 The first arc segment 201 and the second arc segment 202 are equivalent to replacing the corner 203" between the inclined segment 202" and the horizontal segment 201" of the layer-changing track 200". Therefore, when the transport vehicle 300 passes through the first arc segment 201 and the second arc segment 202, the possibility of the chassis contacting the track surface can be avoided, thereby ensuring sufficient friction between the wheels and the track and reducing the possibility of slipping. Return to reference Figure 1A The curvature radii of the first arc segment 201 and the second arc segment 202 can be reasonably designed according to factors such as the wheelbase of the wheels of the transport vehicle 300 and the chassis height.

[0056] In summary, the first arc segment 201 and the second arc segment 202 can make the angle of the transport vehicle 300 change slowly when climbing a slope, and there will be no sudden tilting, which will cause the goods to slide. In order to avoid the separation and friction between the wheels of the transport vehicle 300 and the layer-changing track 200, and to ensure the friction between the wheels of the transport vehicle 300 and the layer-changing track 200, the curvature radius of the first arc segment 201 and the second arc segment 202 can also be reasonably set. The middle section 203 can be selected to be a straight line or an arc according to actual conditions, as long as the middle section 203 can be smoothly connected to the inner end of the first arc segment 201 and the inner end of the second arc segment 202, and matches the length of the layer-changing track 200.

[0057] For example, the outer end of the first arc segment 201 can be connected to the walking track of the upper storage layer in the two different storage layers. In other words, the outer end of the first arc segment 201 can form the upper end of the layer changing track 200. Figure 1A , the transport vehicle 300 can directly enter the first arc segment 201 from the upper storage layer. For the case where the two groups of storage shelves are close in the longitudinal direction YY, the space occupied by the layer-changing track 200 can be reduced, so that more cargo spaces for placing goods can be set. Exemplarily, the outer end of the second arc segment can be connected to the walking track of the lower storage layer in two different storage layers. For the case where the two groups of storage shelves are far apart in the longitudinal direction YY, exemplarily, the multiple segments can also include a first straight segment 204 connected to the outer end of the first arc segment 201, and the first straight segment 204 is connected to the walking track of the upper storage layer in two different storage layers. By setting the first straight segment 204, the assembly of the layer-changing track 200 and the upper storage layer can be facilitated, and the possibility of a gap between the layer-changing track 200 and the upper storage layer can be reduced. Similarly, the layer-changing track 200 can also include a second straight segment 205 connected to the outer end of the second arc segment 202, and the second straight segment 205 is connected to the walking track of the lower storage layer in two different storage layers. In other exemplary embodiments, the transport vehicle 300 can quickly enter the first straight segment 204 or the second straight segment 205 from the storage layer of the storage shelf 100, and slow down in the first arc segment 201 and the second arc segment 202, so as not to obstruct the area corresponding to the storage layer, and can slowly move forward on the layer changing track 200 to prevent slipping or falling of goods.

[0058] In the above technical solution, for different usage scenarios, it can be selected whether to set the first straight segment 204 and / or the second straight segment 205. Moreover, for the scenario where the transport vehicle 300 decelerates to climb or go downhill, the first straight segment 204 and the second straight segment 205 can play the role of an avoidance position, and the transport vehicle 300 will not occupy the walking track of the storage layer, so that other transport vehicles 300 in the storage layer can pass smoothly.

[0059] Exemplarily, the layer-changing track is integrally formed or is formed by splicing multiple segments. For example, the layer-changing track 200 may include two tracks corresponding to the wheelbase of the transport vehicle 300 and separated from each other. In this case, exemplarily but not restrictively, the first arc segment 201, the second arc segment 202, the middle segment 203, the first straight segment 204 and the second straight segment 205 can be made by bending a straight and complete square tube, and the layer-changing track is integrally formed. In other examples, multiple segments such as the first arc segment 201 and the second arc segment 202 can also be manufactured separately, and finally the separated multiple segments are spliced ​​together, and the positions of each other are relatively fixed by welding, fasteners, supports, etc., so as to provide a walkable track for the transport vehicle 300. For a complete plane or curved surface, such as a slope built by steel plates, a similar method can also be used, such as bending a straight steel plate, or welding multiple sections of steel plates together. In short, the installation of the layer-changing track can be selected according to the actual situation on site, comprehensive reliability and cost.

[0060] For example, the layer-changing track may be in the shape of an S-shaped curve. As shown in the figure, the S-shaped curve is a relatively simple structure and occupies a relatively small space while ensuring that each connecting section is smooth and the slope is not too large (such as the tan20° mentioned above). This can reduce the design difficulty, reduce the cost of processing and production, and improve space utilization.

[0061] For example, see Figure 1B The walking track may include a sub-track 110 and a main track 120 perpendicular to each other, wherein the upper part of the sub-track 100 is used to store goods. The upper end of the layer changing track 200 is connected to the main track 120 of the upper storage layer, and the lower end of the layer changing track 200 is connected to the main track 120 of the lower storage layer.

[0062] The transport vehicle 300 may be a four-way vehicle. The four-way vehicle may switch from walking along the sub-track 110 to walking along the mother track 120 perpendicular to the sub-track 110, or from walking along the mother track 120 to walking along the sub-track 110, by, for example, switching wheels, etc. The sub-track 100 and the mother track 120 are both arranged in the storage layer, and it can be considered that the sub-track 100 and the mother track 120 are both walking tracks. In addition to the mother track 120 arranged perpendicular to the sub-track 110, the walking track may also include a mother track (not shown) arranged parallel to the sub-track 110. As is known in the art, the sub-track extends below the cargo space, and the cargo can be placed along the sub-track; and the mother track is equivalent to the main road for the four-way vehicle to walk between different sub-tracks. Therefore, the layout of the mother track can be arranged according to the need for the four-way vehicle to enter the sub-track, for example, it can be in the shape of a "well", a "return", or a "one", etc. The parent track 120 mentioned in this article refers to the parent track that is perpendicular to the sub-track 110. Figure 7 As shown, a cargo space for storing goods 600 may be provided above the sub-track 110. Exemplarily, the sub-track 110 may be provided in an L-shape, the top of the sub-track 110 has a cargo support surface 111 for carrying the goods 600, and the lower part of the sub-track 110 has a walking surface 112 for the transport vehicle 300 to walk. The transport vehicle 300 without cargo can walk on the sub-track 110 with cargo 600, raise the jacking mechanism, so that the cargo 600 is separated from the cargo support surface 111, and the cargo 600 can be transported. Alternatively, the transport vehicle 300 carrying cargo can lower the jacking mechanism on the sub-track 110 without cargo, so as to place the cargo 600 on the cargo support surface 111. After the transport vehicle 300 places the cargo 600 on the sub-track 110, other transport vehicles 300 carrying cargo cannot walk from this section of the sub-track 110, because the cargo carried by the transport vehicle 300 will collide with the cargo on the cargo space. At this time, the transport vehicle 300 can walk to the target location from the sub-track 110 where no goods are placed, or walk to the target location from the mother track 120. There is no cargo position on the mother track 120, and it is always unobstructed when there is no other transport vehicle 300 blocking it.

[0063] In the above technical solution, the layer changing track 200 is connected to the mother track 120, and the transportation of goods between the upper storage layer and the lower storage layer will not be blocked by the goods placed on the sub-track 110, and a transportation path for the goods between the upper storage layer and the lower storage layer can always be provided.

[0064] For example, return to Figure 1B, the layer-changing track 200 can be perpendicular to the mother track 120. In this way, for example, a transport vehicle 300 of a four-way vehicle can move freely between the layer-changing track 200 and the mother track 120. Specifically, the transport vehicle 300 can move to the mother track 120 after loading the goods from the sub-track 110, and move along the layer-changing track 200 perpendicular to the mother track 120, and smoothly move to the layer-changing track 200 to achieve the layer-changing of the goods.

[0065] Exemplarily, the upper end of the layer-changing track 200 is perpendicular to the parent track 120 of the upper storage layer and is aligned with the child track 110 of the upper storage layer. As described above, the transport vehicle 300 may include a four-way vehicle. Figure 1B As shown in the right half of the figure, the transport vehicle 300 can cross the mother track 120' from the rightmost sub-track 110 in a direction parallel to the sub-track 110 and enter the sub-track 110' on the other side of the mother track 120'; or the transport vehicle 300 can also cross the mother track 120 from the sub-track 110' and enter the upper end of the layer-changing track 200 on the other side of the mother track 120. Since the upper end of the layer-changing track 200 is aligned with the sub-track 110, the transport vehicle 300 can freely move between the track network composed of the walking track and the layer-changing track 200, thereby improving the handling efficiency of the goods. The alignment standard is that the transport vehicle 300 can move between the two sets of tracks aligned with each other without changing direction and adjusting. In other words, for the transport vehicle, there is no obvious difference in walking between two sets of aligned tracks and one set of continuous tracks. The structure of the transport vehicle 300 can usually allow slight deviations in the walking track, such as gaps, non-parallel, tilted or uneven areas on the walking track. Similarly, there may be a certain deviation at the connection of the two aligned sets of tracks, and there may be misalignment or height inconsistency at the connection of the two sets of tracks. As long as the deviation is within the allowable range of the transport vehicle and does not affect the function of the transport vehicle and the accuracy of cargo placement, the two sets of tracks can be considered to be aligned. Similar to the upper end of the layer-changing track 200, illustratively, the lower end of the layer-changing track 200 is perpendicular to the mother track 120 of the lower storage layer and is aligned with the sub-track 110 of the lower storage layer. Thus, the transport vehicle 300 can cross the mother track 120' from the rightmost sub-track 110 in a direction parallel to the sub-track 110 to enter the sub-track 110' on the other side of the mother track 120'; or the transport vehicle 300 can also cross the mother track 120 from the sub-track 110' to enter the upper end of the layer-changing track 200 on the other side of the mother track 120. In this way, the efficiency of transportation can be guaranteed to the greatest extent and the difficulty of path planning can be reduced. The present application also does not exclude an embodiment in which the layer-changing track is perpendicular to the mother track but not aligned with the sub-track.

[0066] In the existing storage rack 100, as Figure 1BAs shown, the sub-tracks 110 are mostly arranged in alignment with each other, and the mother track 120 perpendicular to the sub-tracks 110 is interspersed between the multiple groups of sub-tracks 110. Therefore, when modifying the existing storage rack 100, a part of the sub-tracks 110 corresponding to the upper storage layer and a part of the sub-tracks 110 corresponding to the lower storage layer can be removed and directly replaced with the layer-changing track 200. After the upper end of the layer-changing track 200 is aligned with the sub-track 110 of the upper storage layer, the lower end of the layer-changing track 200 can naturally align with the sub-track 110 of the lower track. Thereby, the purpose of setting the layer-changing track 200 in the storage rack 100 with minimal modification is achieved.

[0067] As described above, the layer-changing track 200 may be arranged perpendicular to the mother track. For example, the upper end of the layer-changing track may also be connected to the mother track of the upper storage layer along the extension direction of the mother track of the upper storage layer. Figure 5 , the cargo spaces of the storage shelf 100 can be arranged along the transverse direction XX, and the different storage layers of the storage shelf 100 are connected by a layer-changing track 200". By way of example and not limitation, the storage layer of the storage shelf 100 located above the layer-changing track 200"" in the figure is the upper storage layer, and the storage layer located below the layer-changing track 200"" in the figure is the lower storage layer. For ease of description, the upper and lower positions in the figure correspond to the transverse direction XX. The transport vehicle 300 can travel on the travel track, for example, from the sub-track 110' of the storage layer located above the layer-changing track 200"" in the longitudinal direction YY to enter the mother track 120, and then switch the travel direction, travel along the mother track in the transverse direction XX, and enter the upper end of the layer-changing track 200". It can be understood that the upper end of the layer-changing track 200"" should be aligned with the mother track 120, so that the transport vehicle 300 can enter the layer-changing track 200"" from the mother track 120. For example, the lower end of the layer-changing track can also dock with the mother track of the lower storage layer along the extension direction of the mother track of the lower storage layer. Thus, the transport vehicle 300 can enter the lower storage layer of the storage shelf 100 located below the layer-changing track 200"" from the upper storage layer of the storage shelf 100 located above the layer-changing track 200' along the layer-changing track 200". The layer-changing track 200"" can connect two adjacent storage layers, or it can connect non-adjacent storage layers, which will not be described in detail here.

[0068] In summary, the layer-changing track is preferably connected to the mother track, and its direction can be perpendicular to the mother track and aligned with the sub-track; it can also be set parallel to the mother track and connected to the mother track. In this way, the setting of the layer-changing track is more flexible and can be applied to various storage environments.

[0069] Figure 4A schematic diagram of a storage rack 100 and a layer-changing track 200'' according to an exemplary embodiment of the present application is shown. For example, a plurality of layer-changing tracks are arranged between two different storage layers, and the plurality of layer-changing tracks may have opposite slopes.

[0070] The second layer changing track 220'" is arranged adjacent to the first layer changing track 210'" in a direction perpendicular to the paper surface. In other words, the first layer changing track 210'" does not contact the second layer changing track 220'" and there is no possibility of collision between the transport vehicle 300 and the goods. The second layer changing track 220'" is staggered with the first layer changing track 210'" that is, the upper end and the lower end of the second layer changing track 220'" are respectively connected to the second part 140 and the first part 130. Thus, for the storage shelf 100 connected to the first part 130, the goods on the second layer can pass through the first layer changing track 210'" to the lower storage layer (the first layer from the bottom in the figure) of the storage shelf 100 connected to the second part 140; the goods on the first layer can simultaneously pass through the second layer changing track 220'" to the upper storage layer (the second layer from the bottom in the figure) of the storage shelf 100 connected to the second part 140, or vice versa.

[0071] Optionally, multiple level change tracks can have the same slope. Figure 1C , the layer changing track 200 may include a first layer changing track 210 and a second layer changing track 220. The upper ends of the first layer changing track 210 and the second layer changing track 220 are both connected to the first part 130; and the lower ends of the first layer changing track 210 and the second layer changing track 220 are both connected to the second part 140, so that the first layer changing track 210 and the second layer changing track 220 have the same inclination direction. The transport vehicle 300 can travel back and forth between the lower storage layer connected to the first part 130 and the upper storage layer connected to the second part 140 through the first layer changing track 210 and the second layer changing track 220.

[0072] Continue to see Figure 1C , outside the area shown in the figure, for the lower storage layer, the transport vehicle 300 can travel between the lower storage layer of the first part 130 and the storage layer (not shown) of the second part 140 on the same layer as the lower storage layer through the unshown travel track, and the line between the first part 130 and the lower storage layer of the second part 140 will not be cut off due to the provision of the layer-changing track 200. The same is true for the upper storage layer connected to the second part 140.

[0073] In addition, it should be noted that although Figure 4 In the embodiment shown, a cross-layer changing track 200"' is connected between two storage layers of each storage shelf. Figures 1A-1CIn the embodiment shown, the two storage layers of each storage shelf are connected with a layer-changing track 200 having the same inclination direction. Figure 4 The layer change track 200"' shown can be connected with Figures 1A-1C The layer changing track 200 shown, Figure 2 The layer changing track 200' shown, and Figure 3 The layer changing track 200" shown can be used in any combination.

[0074] In some embodiments, if the weight of the cargo and the transport vehicle 300 is relatively light, the level change rail 200 can be maintained in a predetermined position by connecting the two ends to the upper storage layer and the lower storage layer respectively. However, if the level change rail 200 is relatively long and the weight of the cargo and the transport vehicle 300 is also relatively large, it is obviously not feasible to fix only the level change rail 200 at the connection. For example, the storage device may also include a plurality of rail posts 400, and the level change rail 200 is fixed to the plurality of rail posts 400. Figure 6 As shown, the lower end of the track column 400 can be fixed to the ground. For the storage device set in other environments, such as in a container, the track column 400 can also be set on, for example, the bottom surface of the container, or other solid support surface. The layer-changing track 200 can be fixed to the track column 400 by suitable means such as electric welding, screws, rivets, etc. Preferably, the layer-changing track 200 can be fixed to the track column 400 by a detachable structure, so as to facilitate disassembly and subsequent maintenance.

[0075] By providing the track column 400 to support the layer-changing track 200, the bearing capacity of the layer-changing track 200 can be improved, thereby providing a layer-changing path for a transport vehicle 300 carrying heavier cargo or multiple transport vehicles 300 carrying cargo, thereby improving efficiency.

[0076] For example, each of the plurality of track columns 400 may include a plurality of positioning parts at different heights, and the layer-changing track 200 includes a positioning adapter 230, which can be connected to any of the plurality of positioning parts. The positioning adapter 230 is connected to a suitable positioning part according to its height relative to the plurality of track columns 400. Figure 6As shown, the positioning portion of the track column 400 may include a polygonal limiting hole 410 and a circular fastening hole 420. The positioning adapter 230 may include a protrusion 231, which may be inserted into the limiting hole 410, thereby being fixed on the track column 400. Such fixation is not firm, and the positioning adapter 230 may be reliably fixed on the track column 400 by installing a fastener 500 such as a screw between the positioning adapter 230 and the circular fastening hole 420. The heights of the various parts of each set of layer-changing tracks 200 are not the same, so each positioning adapter 230 on the layer-changing track 200 may be connected to a suitable positioning portion, thereby completing the fixing of the layer-changing track 200. By pre-fixing the protrusion 231 to the limiting hole 410, the positioning adapter 230 can withstand the downward force and the outward pulling force, and the user does not need to always hold up the layer-changing track 200 of this part, and the installation is easier. After the positioning adapter parts 230 of all the layer-changing rails 200 are fixed to the limiting holes 410 , the positioning adapter parts 230 can be fixed to the fastening holes 420 by the fasteners 500 , which not only saves effort but also avoids installation misalignment.

[0077] In other exemplary embodiments, the positioning adapter 230 may not include a protrusion, and the user may hoist the layer-changing track 200 to a suitable position, and directly fix each positioning adapter 230 of the layer-changing track 200 to a suitable height of the track column 400 through the fastener 500. The present application also does not exclude an embodiment in which the positioning adapter 230 is an opening provided on the layer-changing track 200.

[0078] For example, Figure 7 As shown, the storage device may also include a plurality of shelf columns 700, and the sub-tracks 110 and the main track of the storage shelves may be fixed to the plurality of shelf columns 700, and each of the plurality of shelf columns 700 has the same structure as the above-mentioned track column. As described above, for the existing storage device that has been built, each storage layer of its storage shelves is supported and fixed by the shelf columns 700. When these existing storage systems are modified and the above-mentioned layer-changing tracks are installed, a part of the sub-tracks 110 may be removed, while the main track and the shelf columns 700 may be retained. Since the shelf columns 700 have the same structure as the track columns, there is no need for additional installation or reinstallation of the track columns. The layer-changing track 200 may be directly installed on the existing shelf columns 700, thereby greatly saving material costs, as well as the workload of modification, and reducing labor costs.

[0079] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0080] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0081] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0082] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0083] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A storage device, characterized in that: include: Storage racks and at least one level change track; The storage rack has multiple storage layers for storing goods in the vertical direction, and each storage layer is provided with a walking track for a transport vehicle to walk on; The layer-changing track has a slope, each of the layer-changing tracks is connected between two different storage layers in the multiple storage layers, and two ends of the layer-changing track are butted against the travel track, and the layer-changing track is configured to allow a transport vehicle to travel and / or transport goods.

2. The storage device according to claim 1, characterized in that: The layer-changing track includes a plurality of segments extending along an extending direction of the layer-changing track and connected to each other, and the plurality of segments include: a first arc segment and a second arc segment spaced apart along the extending direction, wherein the first arc segment and the second arc segment have inner ends opposite to each other and outer ends opposite to each other; and The middle section extends along the extending direction, and both ends of the middle section are smoothly connected to the inner end of the first arc section and the inner end of the second arc section, respectively, and the middle section is in a straight line or an arc shape.

3. The storage device according to claim 2, characterized in that: The outer end of the first arc segment is connected to the running track of the upper storage layer of the two different storage layers, and / or the outer end of the second arc segment is connected to the running track of the lower storage layer of the two different storage layers; or The multiple segments also include a first straight line segment connected to the outer end of the first arc segment, and / or a second straight line segment connected to the outer end of the second arc segment; the first straight line segment is connected to the walking track of the upper storage layer among the two different storage layers, and the second straight line segment is connected to the walking track of the lower storage layer among the two different storage layers.

4. The storage device according to claim 2, characterized in that: The layer-changing track is integrally formed or is formed by splicing the multiple segments.

5. The storage device according to any one of claims 1 to 4, characterized in that: The layer-changing track is in an S-shaped curve.

6. The storage device according to any one of claims 1 to 4, characterized in that: The walking track includes a sub-track and a main track which are perpendicular to each other; wherein the upper part of the sub-track is used to store goods, The upper end of the layer-changing track is connected to the mother track of the upper storage layer of the two different storage layers, and the lower end of the layer-changing track is connected to the mother track of the lower storage layer of the two different storage layers.

7. The storage device according to claim 6, characterized in that: The upper end of the layer-changing track is perpendicular to the mother track of the upper storage layer and is aligned with the sub-track of the upper storage layer; and / or The lower end of the layer-changing track is perpendicular to the mother track of the lower storage layer and is aligned with the sub-track of the lower storage layer; and / or The layer-changing track is perpendicular to the mother track.

8. The storage device according to claim 6, characterized in that: The upper end of the layer-changing track is butted against the mother track of the upper storage layer along the extension direction of the mother track of the upper storage layer; and / or The lower end of the layer-changing track is butted against the mother track of the lower storage layer along the extension direction of the mother track of the lower storage layer.

9. The storage device according to any one of claims 1 to 4, characterized in that: Multiple layer-changing tracks are provided between two different storage layers; The plurality of layer-changing tracks have the same slope direction, or the plurality of layer-changing tracks have two opposite slope directions.

10. The storage device according to any one of claims 1 to 4, characterized in that: For any one of the layer-changing tracks, the layer-changing track is connected to two storage layers that are adjacent in the vertical direction, or the layer-changing track is connected to two storage layers that are not adjacent in the vertical direction.

11. The storage device according to any one of claims 1 to 4, characterized in that: The upper end and the lower end of each of the layer-changing rails are located in different vertical planes; and / or The slope of any point on the layer-changing track is less than or equal to tan20°.

12. The storage device according to claim 1, characterized in that: The storage device further comprises a plurality of track columns, and the layer-changing track is fixed to the plurality of track columns.

13. The storage device according to claim 12, characterized in that: A plurality of positioning parts are arranged along the vertical direction of each track column. The layer-changing track comprises a positioning adapter, which is connectable to any one of the plurality of positioning portions. The positioning adapter is connected to a suitable positioning portion according to its height relative to the plurality of track columns.

14. The storage device according to claim 12, characterized in that: The storage device further comprises a plurality of storage shelf columns, the storage shelves are fixed to the plurality of storage shelf columns, and each of the plurality of storage shelf columns has the same structure as the track column.

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