Storage equipment for storing and taking articles through article taking device with telescopic fork

Abstract

According to the storage equipment for storing and taking the articles through the article taking device with the telescopic forks, a transporter moving along a roadway is provided with the article taking device 1 capable of ascending and descending along a guide column, the article taking device 1 comprises two transverse fork transverse moving frames capable of oppositely translating in a reciprocating mode along a base frame guide rail, and the two transverse fork transverse moving frames are each provided with a transverse fork 121 which is used for bearing and transferring the articles and overhangs oppositely. And each group of transverse forks 121 are mutually staggered and inserted, and can independently and slightly ascend and descend to alternately bear articles. Any group of extending transverse forks 121 can be inserted into a shelf comb table 4 of a goods shelf to take and place goods. The transporter can also be provided with two groups of oppositely arranged longitudinal forks 311 to be inserted into the notches on the transverse forks 121 and to transfer and temporarily store the articles. Compared with the prior art, the transmission mechanism is simpler, the storage space utilization rate is higher, and the storing and taking speed is higher.

Description

Technical Field

[0001] This invention pertains to storage devices for items, and more particularly to a mechanical storage device for storing and retrieving items using a retriever with a telescopic fork. Background Technology

[0002] Currently, single-depth, bi-directional telescopic forks composed of three-section forks are widely used in automated storage and retrieval systems (AS / RS) and intelligent warehousing systems. Stacker cranes equipped with bi-directional telescopic forks can accurately store goods in or retrieve them from designated locations, effectively utilizing warehouse space and improving the automation level and efficiency of warehousing and logistics.

[0003] The aforementioned bidirectional telescopic forks have the following defects:

[0004] 1. Each compound fork contains an upper fork, a middle fork, and a lower fork, and is equipped with a complex gear rack or sprocket chain drive mechanism, which is difficult to manufacture and install, and has a high cost.

[0005] 2. In order to ensure the load-bearing capacity of the forks, the fork arms of compound forks with complex transmission mechanisms are relatively high, which occupies a large amount of space at the bottom of the compartment.

[0006] 3. Since there are generally only two compound forks, and each fork occupies a large width, the goods in the warehouse generally need to be placed on special pallets with limited structural dimensions and shapes. It is not advisable to directly store or retrieve cartons, boxes, or bagged items of varying sizes.

[0007] In current automated bin storage systems, bin robots equipped with multi-layer temporary storage racks are commonly used to facilitate the storage and retrieval of multiple bins at once.

[0008] This bin storage method has the following drawbacks:

[0009] 1. In order to ensure the smooth passage of the bin robot and to provide 90-degree turning space for the bin gripping device, the reserved aisle width is much larger than the reasonable size, resulting in low utilization of storage space.

[0010] 2. The clamping or hook-type bin retrieval and return devices used are generally only applicable to special bins of specific sizes and shapes, and are difficult to reliably handle bins, cartons, and bagged goods of different sizes. Summary of the Invention

[0011] Referring to the accompanying drawings, in order to overcome the shortcomings of the prior art, the present invention proposes a storage device for storing and retrieving items using a retrieval device with a telescopic fork, characterized in that:

[0012] This includes a conveyor that moves longitudinally through a longitudinal aisle with shelving units 4 arranged on the left and right sides for storing items.

[0013] The retrieval device 1 of the conveyor can be raised and lowered within the retrieval device lifting channel of the conveyor, which is equipped with the retrieval device lifting guide column 21;

[0014] The base frame 1 of the object retriever has two horizontal fork frames 13-1 and 13-2 that can move left and right;

[0015] Each crossbar lateral shifter 13 is equipped with a crossbar assembly 12 that can be raised and lowered between upper and lower limits;

[0016] Each crossbow assembly 12 on the crossbow transverse frame 13 includes multiple crossbows 121 arranged laterally and extending parallel to each other in the same direction;

[0017] The cross fork 121-1 of the cross fork assembly 12-1 on the left cross fork transverse shifter 13-1 extends to the right;

[0018] The cross fork 121-2 of the cross fork assembly 12-2 on the right cross fork transverse shifter 13-2 extends to the left;

[0019] The cross fork 121-1 of the right-extending cross fork group 12-1 and the cross fork 121-2 of the left-extending cross fork group 12-2 are arranged in an alternating manner.

[0020] The gap between adjacent horizontal forks 121-1 extending to the right allows the corresponding horizontal fork 121-2 extending to the left to pass through to the left; the gap between adjacent horizontal forks 121-2 extending to the left allows the corresponding horizontal fork 121-1 extending to the right to pass through to the right.

[0021] The top bearing surface of the right-extending cross fork 121-1, which is raised to the upper limit, is higher than the top bearing surface of the left-extending cross fork 121-2, which is lowered to the lower limit.

[0022] The top bearing surface of the left-extending cross fork 121-2, which is raised to the upper limit, is higher than the top bearing surface of the right-extending cross fork 121-1, which is lowered to the lower limit.

[0023] When the left transverse fork 13-1 moves to the left limit and the right transverse fork 13-2 moves to the right limit, the top bearing surface of the right-extending transverse fork 121-1 and the top bearing surface of the left-extending transverse fork 121-2 can alternately bear items through the lifting action.

[0024] The structure of the shelf comb 4 includes multiple comb teeth 41 arranged horizontally;

[0025] When the conveyor in the tunnel stops at the alignment position of a shelf comb 4-1 on the left side of the tunnel, the left-extending cross fork 121-2 of the conveyor can enter the comb tooth gap between the corresponding comb tooth arms 41-1 of the shelf comb 4-1.

[0026] When the conveyor in the tunnel stops at the alignment position of a shelf comb 4-2 on the right side of the tunnel, the right-extending cross fork 121-1 of the conveyor can enter the comb tooth gap between the corresponding comb tooth arms 41-2 of the shelf comb 4-2.

[0027] When the conveyor in the tunnel stops at the aligned position on the side of a shelf comb 4 on one side of the tunnel, if the fork 121 of the conveyor rises to the upper limit, the top bearing surface of the fork 121 will be higher than the top bearing surface of the comb tooth arm 41 of the shelf comb 4. If the fork 121 of the conveyor falls to the lower limit, the top bearing surface of the fork 121 will be lower than the top bearing surface of the comb tooth arm 41 of the shelf comb 4.

[0028] Compared to existing telescopic forks, the cross forks 121 proposed in this invention do not contain a transmission mechanism within their fork structure. All cross forks 121 rely solely on two small-amplitude lifting mechanisms and two lateral movement mechanisms to store and retrieve items within the cargo hold. This simplifies the transmission mechanism and enhances reliability. The cross fork assembly 121 cooperates with the shelving comb 4 at the bottom of the cargo hold, enabling reliable storage and retrieval of various sizes of boxes and bags, and even unpackaged items that meet specific size and shape requirements. Because the height of the cross forks and the corresponding shelving comb can be relatively low, the utilization rate of the cargo hold's vertical space is improved compared to existing three-section fork units.

[0029] To improve access efficiency, the present invention proposes the following further technical features:

[0030] The upper side of each of the two sets of cross forks 121 of the lifting device 1 of the conveyor is provided with multiple cross fork recesses 1215.

[0031] When the left transverse fork lateral shifter 13-1 moves to the left limit position and the right transverse fork lateral shifter 13-2 moves to the right limit position, and each transverse fork 121 is at the same height position, the transverse fork notches 1215 at the corresponding positions of each transverse fork 121 are aligned and connected in the front-back direction.

[0032] The lifting channel of the retrieval device in the conveyor is provided with a longitudinal fork assembly base frame on the longitudinal side, and multiple longitudinal fork assemblies 31 that can move independently in the longitudinal direction are provided in the longitudinal fork assembly base frame.

[0033] The longitudinal fork assembly 31-1 includes multiple longitudinal forks 311 arranged in parallel and extending toward the lifting channel of the retrieval device;

[0034] The depth of the notch 1215 in the transverse fork is greater than the structural height of the overhang section of the longitudinal fork 311;

[0035] When the left transverse fork lateral shifter 13-1 moves to the left limit position and the right transverse fork lateral shifter 13-2 moves to the right limit position, and each transverse fork 121 is at a set height position, each longitudinal fork 311 of the longitudinal fork group 31-1 can move longitudinally into the transverse fork notch 1215 at the corresponding position of each transverse fork 121 of the transverse fork group 12 that is aligned with it.

[0036] By adopting the aforementioned technical features of the forklift assembly 31, compared with existing bin robots with multi-layer temporary storage racks on one side, the retrieval device 1 of the conveyor of the present invention allows items to be retrieved from the temporary storage rack formed by the forklift assembly 31 without turning around. This significantly narrows the width of the warehouse aisle, improving not only storage and retrieval efficiency but also ensuring high utilization of warehouse space. Furthermore, if multi-layer forklift assemblies 31 are provided on both sides, the conveyor can carry more bins in a single round trip, further improving storage and retrieval efficiency.

[0037] To enable the conveying machine to transfer items on both sets of forklifts 31 to other transfer equipment at the entrance of the rack aisle, the present invention proposes the following further technical features:

[0038] The longitudinal fork assembly base frame includes a first longitudinal fork assembly base frame 22 and a second longitudinal fork assembly base frame 23;

[0039] The longitudinal forks 311-1 of any layer of longitudinal fork group 31-1 located in the first longitudinal fork group base frame 22 and the longitudinal forks 311-2 of the same layer height of the second longitudinal fork group base frame 23 are arranged to be staggered in the left and right directions.

[0040] The second longitudinal fork frame 23 can be raised and lowered as a whole between the upper and lower limits;

[0041] When the second longitudinal fork group base frame 23 is raised to the upper limit position, the longitudinal fork 311-1 of any layer longitudinal fork group 31-1 in the first longitudinal fork group base frame 22 is lower than the longitudinal fork 311-2 of the longitudinal fork group 31-2 of the same layer height in the second longitudinal fork group base frame 23.

[0042] When the second longitudinal fork group base frame 23 is lowered to the lower limit position, the longitudinal fork 311-1 of any layer longitudinal fork group 31-1 in the first longitudinal fork group base frame 22 is higher than the longitudinal fork 311-2 of the longitudinal fork group 31-2 of the same layer height in the second longitudinal fork group base frame 23.

[0043] In this way, when the conveyor moves along the track to the end of the tunnel, other equipment can first remove the entire set of items from the second forklift base 23 using the fork gaps. Then, the first forklift base can quickly transfer the items to the second forklift base. Conversely, items can be quickly filled into the two forklifts of the conveyor when they are in an empty state from other equipment.

[0044] In this article, the term "left and right" is used in the context of... Figure 30 For reference, the part to the left of the transporter shown in the figure is called "left", and the part to the right of the transporter shown in the figure is called "right".

[0045] The direction in which the transporter faces the observer is called "front," and the opposite direction is called "back."

[0046] The area above and below the conveyor shown in the diagram is referred to as "upper" and "lower".

[0047] The terms "longitudinal" and "vertical" refer to the aforementioned "front and back" extension direction, while "horizontal" and "lateral" refer to the aforementioned "left and right" extension direction.

[0048] The terms above are only for the purpose of accurately describing the relative positional relationships of the various parts of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0049] More specific technical features and beneficial effects of the present invention will be described in further detail in the following embodiments with reference to the accompanying drawings. Attached Figure Description

[0050] Figure 1 This is a three-dimensional schematic diagram of the operation status of a conveyor and a multi-layered combing table on both sides in an embodiment;

[0051] Figure 2 This is a perspective view of the retrieval device of a conveyor according to an embodiment;

[0052] Figure 3 This is a perspective view of a cross-shaped assembly in an embodiment;

[0053] Figure 4 yes Figure 3 Front view of the shown crossbar assembly;

[0054] Figure 5 yes Figure 3 Right view of the shown cross group;

[0055] Figure 6 yes Figure 5 Top view of the shown cross group;

[0056] Figure 7 This is a perspective view of a transverse fork frame in an embodiment;

[0057] Figure 8 This is a perspective view of the combined state of a transverse fork and a transverse fork assembly raised to its upper limit, according to an embodiment.

[0058] Figure 9This is a perspective view of the combined state of a transverse fork and a transverse fork assembly lowered to the lower limit position, according to an embodiment.

[0059] Figure 10 This is a perspective view of the base frame of a retrieval device in one embodiment;

[0060] Figure 11 This is a perspective view of the base frame of the retrieval device with a horizontal fork assembly installed in an embodiment;

[0061] Figures 12 to 15 These are perspective views of the different operating states of the picker of the conveyor in this embodiment.

[0062] Figure 16 , Figure 17 This is a perspective view of the retrieval device of the conveyor in different operating states within the elevator shaft of the embodiment;

[0063] Figure 18 , Figure 19 This is a three-dimensional schematic diagram of the operating state of the transporter aligning with the combing platform on both sides of the elevator shaft in the embodiment.

[0064] Figure 20 This is a perspective view of one of the longitudinal forks in an embodiment;

[0065] Figure 21 This is a three-dimensional schematic diagram of a longitudinal fork assembly after it is inserted into the longitudinal fork assembly guide beam according to an embodiment;

[0066] Figures 22 to 24 This is a three-dimensional schematic diagram of the different operating states of the retrieval device of the conveyor in the embodiment between the longitudinal forks on the same level;

[0067] Figure 25 , Figure 26 This is a three-dimensional schematic diagram of different operating states between longitudinal forks on the same level in the embodiment;

[0068] Figure 27 This is a perspective view of the transporter base frame, which includes only the first longitudinal fork group base frame, according to an embodiment.

[0069] Figure 28 This is a perspective view of the second longitudinal fork assembly base frame in the embodiment;

[0070] Figure 29 , Figure 30 This is a perspective view of the different operating states of the complete transporter with the second longitudinal fork assembly base frame installed in the embodiment;

[0071] Figure 31 This is a partial cross-sectional perspective view of the picker of the conveyor in the embodiment, along with the longitudinal fork assembly and the shelf combing table on the same floor.

[0072] Figure label:

[0073] 1-The lifting device of the conveyor; 11-The lifting device base frame; 111-Side rack; 112-Bottom rack.

[0074] 12-Horizontal fork assembly, 121-Horizontal fork, 1211-Horizontal fork front end, 1212-Horizontal fork rear end.

[0075] 1213 - Horizontal fork with vertical tail, 1214 - Horizontal fork with convex top, 1215 - Horizontal fork with notch, 122 - Horizontal fork with tail beam.

[0076] 1221 - Horizontal fork tail plate notch; 1222 - Horizontal fork lifting guide column; 1223 - Linkage shaft.

[0077] 13-Horizontal fork lateral shifter, 131-Horizontal fork lifting swing arm, 132-Horizontal fork lifting linkage,

[0078] 133 - Horizontal fork lifting drive shaft; 134 - Horizontal fork lateral movement drive shaft; 135 - Guide post guide hole.

[0079] 136-Side gear, 137-Bottom gear, 1381-Horizontal fork lifting motor, 1382-Horizontal movement frame translating motor.

[0080] 2-Conveying machine base frame, 21-Item lifting guide column, 22-First longitudinal fork assembly base frame,

[0081] 221 - First longitudinal fork group base frame side column, 23 - Second longitudinal fork group base frame, 231 - Second longitudinal fork group base frame side column,

[0082] 241-Transporter overhead rail, 242-Transporter ground rail, 25-Forklift assembly base frame guardrail, 31-Forklift assembly,

[0083] 311 - Fork assembly, 312 - Fork assembly tail beam, 313 - Fork assembly guide wheel, 314 - Fork assembly drive shaft

[0084] 315 - Fork assembly drive gear; 32 - Fork assembly guide beam; 321 - Fork assembly guide rail; 322 - Fork assembly rack.

[0085] 33 - Fork drive motor, 4 - Layer comb table, 41 - Comb table toothed arm. Detailed Implementation

[0086] An example of the present invention is shown in the accompanying drawings. This is a storage device designed according to the principles of the present invention, which uses a retrieval device with a telescopic fork to store and retrieve items.

[0087] Figure 1The illustration shows the transporter, equipped with eight sets of longitudinal forks 31-1 and 31-2 in total, operating between the transporter overhead rail 241 and transporter ground rail 242 in the aisle between four-layer shelf comb platforms 4 on the left and right sides for storing goods. The four-layer shelf comb platform 4 is installed in the silo frame structure, which has been omitted from the attached drawing. The shelf comb platform 4 uses a low-cost corrugated plate design. Obviously, to reduce the overhead height of the silo bottom structure, other implementation methods that can form cargo comb teeth could also be used, such as rectangular tubes with equal spacing extending towards the aisle or thick sheet metal comb-shaped queues.

[0088] See Figure 2 , Figure 16 , Figure 2 The image shown is the retrieval device 1 of the conveyor in this embodiment, which can... Figure 16 The conveyor shown operates within the lifting channel formed by the four lifting guide columns 21 of the lifting device.

[0089] The base frame 1 of the retrieval device has two horizontal fork frames 13-1 and 13-2 that can move left and right.

[0090] The left and right crossbars 13-1 and 13-2 are respectively equipped with a left crossbar assembly 12-1 and a right crossbar assembly 12-2 that can be raised and lowered within a limited range of 2.4cm.

[0091] The left cross fork group 12-1 and the right cross fork group 12-2 on the left and right cross fork transverse shift frames 13-1 and 13-2 each include four horizontally arranged parallel cantilever cross forks 121-1 and 121-2.

[0092] The cross fork 121-1 of the cross fork group 12-1 on the left cross fork lateral shifter 13-1 extends to the right, and the cross fork 121-2 of the cross fork group 12-2 on the right cross fork lateral shifter 13-2 extends to the left.

[0093] The cross fork 121-1 of the right-extending cross fork group 12-1 and the cross fork 121-2 of the left-extending cross fork group 12-2 are arranged alternately.

[0094] The gap between adjacent horizontal forks 121-1 extending to the right allows the corresponding horizontal fork 121-2 extending to the left to pass through to the left; the gap between adjacent horizontal forks 121-2 extending to the left allows the corresponding horizontal fork 121-1 extending to the right to pass through to the right.

[0095] The structure of the cross group 12 is as follows Figures 3 to 6 As shown, each cross fork 121 made of thick sheet metal has five cross fork recesses 1215 of equal width and spacing on its top edge. The top of the cross fork protrusion 1214 next to each cross fork recess 1215 is a bearing surface for supporting the object.

[0096] See Figure 2 When the left transverse fork 13-1 moves to the left limit and the right transverse fork 13-2 moves to the right limit, and when each transverse fork 121 is at the same height, the transverse fork notches 1215 at the corresponding positions of each transverse fork 121 are aligned and connected in the front-back direction.

[0097] In order to limit the bottom edge of the box-shaped item at both ends of the cross fork 121, the upper part of the front end 1211 and the rear end 1212 of the cross fork both have an upward protrusion hook that is higher than the top protrusion 1214 of the cross fork.

[0098] The lower rear ends of the four cross forks 121 are fixedly connected to the upper part of the same cross fork tail beam 122 made of double-layer irregular sheet metal. Between the roots of adjacent cross forks 121, there is a cross fork tail plate notch 1221 for the cross fork body of another cross fork assembly 12 to pass through.

[0099] Below the crossbeam 122, there are two downward-extending crossbeam lifting guide columns 1222. The inner side of the bottom end of the crossbeam lifting guide column 1222 is provided with a linkage shaft 1223 for receiving the lifting driving force.

[0100] See Figure 7 The main body of the horizontal fork lateral shifting frame 13 is a hollow irregular frame structure. At the top of the frame structure, there are two guide post guide holes 135 for inserting and guiding the horizontal fork lifting guide post guide holes 1222.

[0101] The frame structure has two sets of side gears 136 on its outer sides, and each set of side gears 136 is rigidly connected to the upper and lower ends of the rotatable vertical shaft.

[0102] Bottom gears 137 are installed at both ends of the bottom of the frame structure, and the bottom gears 137 are rigidly connected to both ends of the transverse fork lateral movement drive shaft 134. The transverse fork lateral movement drive shaft 134 is driven by a transverse frame translation motor 1382 installed in the hollow space of the frame structure.

[0103] The hollow space within the frame structure also houses a cross-fork lifting drive shaft 133 driven by a cross-fork lifting motor 1381. The cross-fork lifting drive shaft 133 is connected to two sets of cross-fork lifting levers 131 with a hole spacing of 1.2 cm at both ends, and cross-fork lifting connecting rods 132, as shown in the image. Figure 8 , Figure 9 As shown, the linkage shaft 1223 at the bottom of the cross fork lifting guide post 1222 inside the guide post guide hole 135 drives the cross fork assembly 12 to perform a lifting motion of 2.4 cm.

[0104] See Figure 10 The base frame 11 of the retrieval device is equipped with two sets of side racks 111 and one set of bottom racks 112.

[0105] See Figures 11 to 15The side gears 136-1, 136-2 and bottom gears 137-1, 137-2 of the left and right transverse fork frames 13-1 and 13-2, together with the side racks 111 and bottom racks 112 of the retrieval base frame 11, maintain the stable reciprocating parallel movement of the left and right transverse fork frames 13-1 and 13-2 on the retrieval base frame 11. Part of the rack's side acts as a limiting slide rail for the transverse fork frame 13.

[0106] See Figure 12 The bottom gears 137-1 and 137-2, which are driven to rotate by the motor, are the source of lateral movement force for the left and right transverse fork transverse frames 13-1 and 13-2.

[0107] See Figure 13 When the left transverse fork 13-1 moves to the left limit and the right transverse fork 13-2 moves to the right limit, the top bearing surface of the right-extending transverse fork 121-1 and the top bearing surface of the left-extending transverse fork 121-2 can alternately bear items through lifting and lowering actions.

[0108] The top bearing surface of the right-extending cross fork 121-1, which is raised to the upper limit position, is higher than the top bearing surface of the left-extending cross fork 121-2, which is lowered to the lower limit position; the top bearing surface of the left-extending cross fork 121-2, which is raised to the upper limit position, is higher than the top bearing surface of the right-extending cross fork 121-1, which is lowered to the lower limit position.

[0109] See Figure 14 , Figure 15 , Figure 17 When the right cross fork lateral shifter 13-2 moves to the left to the end, about 80% of the overhang of the cross fork 121-2 of the cross fork assembly 12-2 of the right cross fork lateral shifter 13-2 extends to the left beyond the left side of the lifting guide post 21 of the retrieval device.

[0110] See Figure 18 The diagram shows that after the retrieval device 1 of the conveyor aligns with the comb tables 4-1 and 4-2 of the shelf, the left horizontal fork lateral shifter 13-1 moves to the right, causing the right-extending horizontal fork 121-1, which has been lowered to its lower limit, to insert into the toothed gap between the comb table teeth 41-2 of the right shelf comb table 4-2. Because the height of the horizontal fork 121 is less than that of the comb table teeth 41, when the horizontal fork 121 is inserted into the toothed gap of the comb table teeth 41, the horizontal fork 121 will not touch the box-shaped items supported by the comb table teeth 41. For items with a certain degree of flexibility, such as bagged items, the insertion action of the horizontal fork 121 generally will not cause damage to the items because the tip of the horizontal fork 121 is made into a smooth beveled shape.

[0111] See Figure 19After the extended horizontal fork 121-1 is fully inserted to the right, it rises another 2.5 cm, making the bearing surface of the horizontal fork 121-1 higher than the bearing surface of the comb arm 41-2, thus lifting the item on the comb arm 41-2. Then, as the left horizontal fork lateral shifter 13-1 returns to the left, the lifted item will be carried by the horizontal fork 121-1 at its upper limit position into the space above the retrieval unit 1. Reversing this process will move the item from the retrieval unit 1 into the compartment formed by the shelf comb.

[0112] Since both sets of horizontal forks 121-1 and 121-2 can independently perform lifting and lowering actions at any time, under the control of the system program, the items carried by the horizontal forks can be alternately received and transferred by different sets of horizontal forks 12 using lifting and lateral movement, and their positions can be adjusted by short-distance lateral movement. Thus, when a large item on a shelf combing table 4-2 is lifted and moved out by a set of horizontal forks 12-1, it may still be necessary to rely on the two sets of horizontal forks 12-1 and 12-2 to perform an alternating lifting and lateral movement to adjust it to a more suitable position.

[0113] See Figure 20 The structure of the longitudinal fork assembly 31 is shown in the figure. The spacing of its five parallel longitudinal forks 311 matches the spacing of the transverse fork recesses 1215. The lower rear root of each longitudinal fork 311 is rigidly connected to the tail beam 312 of the longitudinal fork assembly.

[0114] Two longitudinal fork guide wheels 313 and one longitudinal fork drive gear 315 are respectively installed on the end seats at both ends of the longitudinal fork tail beam 312.

[0115] Two fork drive gears 315 are rigidly connected to both ends of the fork drive shaft 314. The fork drive shaft 314 is driven by a fork drive motor 33 installed in the middle of the fork tail beam 312.

[0116] The structural height of the overhang section of the longitudinal fork 311 is less than the recess depth of the transverse fork recess 1215 of the transverse fork assembly 12.

[0117] See Figure 21 The longitudinal fork group guide wheel 313 and longitudinal fork group drive gear 315 of the longitudinal fork group 31 installed between the two longitudinal fork group guide rail beams 32 are guided by the longitudinal fork group guide rail 321 and the longitudinal fork group rack 322, respectively.

[0118] See Figure 1 , Figures 22 to 24The width of the pre-set horizontal fork notch 1215 is greater than twice the width of the longitudinal fork 311. Furthermore, the longitudinal forks 311-1 of any layer of longitudinal fork group 31-1 within the first longitudinal fork group base 22 and the corresponding longitudinal forks 311-2 of the same layer height of the second longitudinal fork group base 23 are arranged alternately in the left-right direction. Specifically, the longitudinal forks 311-1 of the longitudinal fork group 31-1 within the first longitudinal fork group base 22 are arranged to the right, and the longitudinal forks 311-2 of the longitudinal fork group 31-2 within the second longitudinal fork group base 23 are arranged to the left.

[0119] See Figure 23 The longitudinal fork group 31-1 in the first longitudinal fork group base frame 22 can move forward to the end, so that its longitudinal fork 311-1 passes through the right position of the corresponding transverse fork notch 1215.

[0120] See Figure 24 The longitudinal fork group 31-2 in the second longitudinal fork group base frame 23 can be moved backward to the end, so that its longitudinal fork 311-2 passes through the left position of the corresponding transverse fork notch 1215.

[0121] See Figure 25 The longitudinal forks 311-1 and 311-2 in the two opposing longitudinal fork groups 31-1 and 31-2 can simultaneously interlock and lean against each other.

[0122] See Figure 27 The structure of the transporter base frame 2 is shown in the figure. Four lifting guide columns 21 for the lifting device are arranged in the middle, and a first longitudinal fork base frame 22 with four first longitudinal fork base frame side columns 221 is set behind it. Four layers of longitudinal fork guide rail beams 32 are installed inside the first longitudinal fork base frame 22. The transporter base frame 2 moves back and forth along the transporter overhead rail 241 and the transporter ground rail 242 with the help of traveling wheels and guide wheels.

[0123] See Figure 28 This is how Figure 29 The diagram shows the construction of the second longitudinal fork assembly base frame 23, which is installed at the front of the transporter base frame 2. It also has four layers of longitudinal fork assembly guide beams 32 installed on it. The spacing between the layers of the longitudinal fork assembly guide beams 32 in the first longitudinal fork assembly base frame 22 and the second longitudinal fork assembly base frame 23 is the same, and also the same as the spacing between the layers of the shelf comb platform 4.

[0124] The longitudinal fork group base frame 22 and the longitudinal fork group base frame 23 are equipped with longitudinal fork group base frame guardrails 25 above the longitudinal fork group guide rail beams 32 of each layer, which serve to limit the left and right sides of the items.

[0125] See Figure 29The second longitudinal fork assembly base 23 can be raised and lowered within a range of 2.5 cm by a power mechanism hidden in the bottom base. When the longitudinal fork assembly 31-2 in the second longitudinal fork assembly base 23 rises to the upper limit position, its longitudinal fork 311-2 is higher than the longitudinal fork 311-1 in the first longitudinal fork assembly base 22. Conversely, when the longitudinal fork assembly 31-2 in the second longitudinal fork assembly base 23 descends to the lower limit position, its longitudinal fork 311-2 is lower than the longitudinal fork 311-1 in the first longitudinal fork assembly base 22.

[0126] See Figure 26 When the longitudinal forks 311-1 and 311-2 on the same layer are inserted into each other, the longitudinal fork group 31-2 in the second longitudinal fork group base 23 can take and put items from the longitudinal fork 311-1 in the first longitudinal fork group base 22 by means of the lifting action of the second longitudinal fork group base 23.

[0127] Similarly, see Figure 30 When all the forks 31-1 and 31-2 in the first fork group base frame 22 and the second fork group base frame 23 are inserted into each other, with the help of the lifting action of the second fork group base frame 23, all the forks 31-2 in the second fork group base frame 23 can simultaneously transfer all the items on each layer from the forks 311-1 in the first fork group base frame 22.

[0128] See Figure 31 By utilizing the lifting and lateral movement of the horizontal forks 121-1 and 121-2 and the vertical forks 311-1 and 311-2, items can be freely exchanged and transferred among the horizontal forks 121-1 and 121-2, the vertical forks 311-1 and 311-2, and the comb arm 41-1 and 41-2 without the need to rotate the items. As shown in the diagram, only a narrow gap of one or two centimeters is required between the retrieval device 1 in the aisle and the comb arms 4-1 and 4-2 on the left and right sides. Compared with existing technologies, this significantly improves the space utilization rate of storage facilities.

Claims

1. A storage device for storing and retrieving articles with telescopic forks, characterized in that: it comprises a carrier moving longitudinally in a longitudinal aisle with layer shelves arranged on both left and right sides for storing articles, the carrier's article retriever can be lifted in the article retriever lifting channel of the carrier provided with article retriever lifting columns, the article retriever chassis is provided with left and right two lateral cross fork transverse frames that can move laterally, each cross fork transverse frame is provided with a set of article retriever forks that can be lifted between upper and lower limits, each set of article retriever forks on each cross fork transverse frame comprises a plurality of cross forks arranged side by side in the same direction and suspended in parallel, the cross forks of the set of article retriever forks on the left cross fork transverse frame are suspended to the right, the cross forks of the set of article retriever forks on the right cross fork transverse frame are suspended to the left, the cross forks of the set of article retriever forks suspended to the right and the cross forks of the set of article retriever forks suspended to the left are arranged alternately, the fork gap between adjacent cross forks suspended to the right allows the cross fork suspended to the left at the corresponding position to pass to the left, and the fork gap between adjacent cross forks suspended to the left allows the cross fork suspended to the right at the corresponding position to pass to the right, the top load surface of the cross fork suspended to the right lifted to the upper limit is higher than the top load surface of the cross fork suspended to the left lowered to the lower limit, the top load surface of the cross fork suspended to the left lifted to the upper limit is higher than the top load surface of the cross fork suspended to the right lowered to the lower limit, when the left cross fork transverse frame is moved to the left limit and the right cross fork transverse frame is moved to the right limit, the top load surface of the cross fork suspended to the right and the top load surface of the cross fork suspended to the left can alternately load articles through lifting action, the structure of the layer shelf combing table comprises a plurality of combing teeth arms arranged transversely, when the carrier in the aisle is parked at an alignment position of a layer shelf combing table on the left side of the aisle, the cross fork suspended to the left of the carrier can enter the combing teeth gap between the corresponding combing teeth arms of the layer shelf combing table to the left, when the carrier in the aisle is parked at an alignment position of a layer shelf combing table on the right side of the aisle, the cross fork suspended to the right of the carrier can enter the combing teeth gap between the corresponding combing teeth arms of the layer shelf combing table to the right, when the carrier in the aisle is parked at an alignment position of a layer shelf combing table on one side of the aisle, if the cross fork of the carrier is lifted to the upper limit, the top load surface of the cross fork will be higher than the top load surface of the combing teeth arms of the layer shelf combing table, and if the cross fork of the carrier is lowered to the lower limit, the top load surface of the cross fork will be lower than the top load surface of the combing teeth arms of the layer shelf combing table.

2. The storage device for storing and retrieving articles with telescopic forks according to claim 1, characterized in that: the upper edge of each cross fork of the two sets of article retriever fork groups of the carrier's article retriever is provided with a plurality of cross fork notches, when the left cross fork transverse frame is moved to the left limit and the right cross fork transverse frame is moved to the right limit, and each cross fork is at the same height, the cross fork notches at the corresponding positions of each cross fork are aligned and pass through in the front and rear directions, the longitudinal side of the article retriever lifting channel in the carrier is provided with a longitudinal fork group base frame, and a plurality of layers of longitudinally independently movable longitudinal fork groups are arranged in the longitudinal fork group base frame, the longitudinal fork group comprises a plurality of longitudinal forks arranged side by side in the direction of the article retriever lifting channel and suspended, the notch depth of the cross fork notch is greater than the structural height of the suspended section of the longitudinal fork, ​ When the left cross beam traverses to the left limit, the right cross beam traverses to the right limit, and each cross beam is located at the set height position, each longitudinal beam of the longitudinal beam group can longitudinally move into the cross beam recess of the corresponding position of each cross beam of the cross beam group of the horizontal layer to which the longitudinal beam is positioned.

3. The warehouse equipment of claim 2, wherein: the longitudinal beam group base frame comprises a first longitudinal beam group base frame and a second longitudinal beam group base frame; the longitudinal beams of the longitudinal beam group at any layer in the first longitudinal beam group base frame and the longitudinal beams of the longitudinal beam group at the corresponding position of the same layer height of the second longitudinal beam group base frame are arranged in a staggered manner in the left-right direction; wherein the second longitudinal beam group base frame can be integrally raised and lowered between the upper and lower limits; when the second longitudinal beam group base frame is raised to the upper limit, the longitudinal beams of the longitudinal beam group at any layer in the first longitudinal beam group base frame are lower than the longitudinal beams of the longitudinal beam group at the corresponding position of the same layer height of the second longitudinal beam group base frame; when the second longitudinal beam group base frame is lowered to the lower limit, the longitudinal beams of the longitudinal beam group at any layer in the first longitudinal beam group base frame are higher than the longitudinal beams of the longitudinal beam group at the corresponding position of the same layer height of the second longitudinal beam group base frame.

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