Overhead three-dimensional refrigeration house based on grid structure and construction method of overhead three-dimensional refrigeration house

Abstract

The invention relates to an elevated three-dimensional refrigeration house based on a grid structure and a construction method thereof, and belongs to the technical field of warehousing, the elevated three-dimensional refrigeration house comprises goods shelves arranged in rows and guide rails arranged adjacent to the goods shelves, trays are placed on the goods shelves, a taking and placing device is arranged on the guide rails, and the taking and placing device comprises a door frame, a carrying plate and steel supporting strips; the portal is slidably arranged on the guide rails and horizontally slides in the direction parallel to the length direction of the goods shelf, the carrying plate is slidably arranged on the portal in the vertical direction, the steel supporting strip is slidably arranged at the top of the carrying plate in the direction close to or away from the goods shelf, and an electric cylinder is rotatably arranged at the bottom of the carrying plate and horizontally arranged. Clamping pieces used for being temporarily connected with the trays are fixed to the piston ends of the electric cylinders, and the extending distance of the piston ends of the electric cylinders is larger than the width of the single-row goods shelf. The single-row goods shelf has the effect of improving the utilization rate of the picking and placing device on the single guide rail.

Description

Technical Field

[0001] This application relates to the technical field of warehousing, and in particular to an elevated three-dimensional cold storage based on a grid structure and its construction method. Background Art

[0002] With the rapid development of the cold chain logistics industry, the demand for cold storages with high capacity and high efficiency is increasing day by day.

[0003] Existing cold storages are built using concrete or steel structures. In the cold storage, steel structures are used to build the shelves. The shelves are arranged neatly in rows, with intervals between adjacent shelves. Guide rails are installed on the ground between adjacent shelves, and gantries are installed on the guide rails. The gantries slide reciprocally on the guide rails. A picking and placing device is slidably arranged vertically on the gantry. The picking and placing device controls the picking and placing of goods on both sides of the shelves, and cooperates with the gantry to realize the storage and retrieval of goods in the warehouse. The form presented in the warehouse is that rows of shelves and a track are arranged alternately, thus forming a compact warehousing form to store as many goods as possible.

[0004] In the actual construction and application process, a single picking and placing device can only pick and place goods on the single-row shelves on the adjacent left and right sides. If two adjacent rows of shelves are set on one side of the guide rail, on the one hand, because the picking and placing distance of the picking and placing device itself cannot meet two rows, and on the other hand, the front goods will block the rear goods, there is a defect that a single picking and placing device cannot conveniently pick and place goods on two rows of shelves. Summary of the Invention

[0005] In order to improve the utilization rate of the picking and placing device on a single guide rail, this application provides an elevated three-dimensional cold storage based on a grid structure and its construction method.

[0006] In the first aspect, this application provides an elevated three-dimensional cold storage based on a grid structure, adopting the following technical solution: An elevated three-dimensional cold storage based on a grid structure includes rows of shelves and guide rails arranged adjacent to the shelves. Pallets are placed on the shelves, and a picking and placing device is arranged on the guide rails. The picking and placing device includes a gantry, a carrier plate, and steel support bars. The gantry is slidably arranged on the guide rail and horizontally slides parallel to the length direction of the shelves. The carrier plate is slidably arranged vertically on the gantry. The steel support bars are slidably arranged on the top of the carrier plate in a direction close to or away from the shelves. The carrier plate is horizontally arranged for carrying goods. An electric cylinder is rotatably arranged at the bottom of the carrier plate. The electric cylinder is horizontally arranged, and the rotation axis between the electric cylinder and the carrier plate is arranged vertically and penetrates the center of the carrier plate. A clamping member for temporarily connecting with the pallet is fixed at the piston end of the electric cylinder. The extension distance of the piston end of the electric cylinder is greater than the width of a single row of shelves; an idle area for temporarily storing goods is arranged in the middle of the single row of shelves.

[0007] By adopting the above technical solution, the electric cylinder can drive the clamping member to rotate 360° around the rotating shaft, and the extension distance of its piston end is greater than the width of a single-row shelf. When two rows of shelves are arranged on one side of the guide rail, the picking and placing device can cross the front-row shelves and perform a dragging operation on the goods on the rear-row shelves, rotate the pallet on the rear-row shelves to the front-row shelves, and then pick up the pallet through the steel support bar, that is, move the steel support bar to the bottom of the pallet and transfer the pallet and the goods on the pallet to the carrier plate together. The idle area in the middle of the single-row shelf provides an operating space for the picking and placing device to pick and place the goods on the rear-row shelf, avoiding the obstruction of the front-row goods to the picking and placing operation. That is, first take out the blocked front-row goods and place them in the idle area as a transfer, then take out the rear-row goods and transport them out, and finally return the goods in the idle area to their original positions. Thus, a single picking and placing device can conveniently pick and place the goods on two rows of shelves on one side of the guide rail. Compared with the traditional cold storage in which a single picking and placing device can only pick and place the single-row shelves on the adjacent left and right sides, the utilization rate of the picking and placing device is greatly improved, the cold storage space is fully utilized, and the storage capacity of the cold storage is increased; and under the same storage capacity requirement, the number of guide rails and picking and placing devices is reduced, and the construction cost and operation cost of the cold storage are reduced.

[0008] Optionally, the inside of the gantry is hollow, a sliding hole is opened on the vertical inner wall of the gantry, the sliding hole is opened along the vertical direction, a slider is fixed at the end of the carrier plate, the end of the slider penetrates through the sliding hole and extends into the gantry, and the cross section of the slider is rectangular; a hoist is arranged at the top of the gantry for the slider to rise or fall.

[0009] By adopting the above technical solution, the rectangular slider at the end of the carrier plate cooperates with the sliding hole on the vertical inner wall of the gantry to form a stable guiding structure, ensuring that the carrier plate will not shift or shake when sliding in the vertical direction, and improving the stability and accuracy when picking and placing goods. The hoist, as a power source, can accurately control the rise or fall of the carrier plate, and can flexibly adjust the position of the carrier plate according to the different storey heights of the shelves to meet the access requirements of goods at different heights, making the operation of the picking and placing device more convenient and efficient.

[0010] Optionally, two sets of wire groups of the hoist itself are provided for the sliders corresponding to both ends of the carrier plate, the wire groups of the hoist itself are located inside the gantry, a turning wheel is fixed inside the gantry, and the turning wheel is arranged adjacent to any wire group of the hoist itself for the two sets of wire groups to wind and unwind simultaneously.

[0011] By adopting the above technical solution, the two sets of wire groups correspond to the sliders at both ends of the carrier plate, which can ensure that the carrier plate is evenly stressed during the lifting process, avoid the tilting of the carrier plate caused by uneven stress, and further improve the smoothness of the lifting of the carrier plate. The setting of the turning wheel cleverly changes the traction direction of the wire group, enabling the two sets of wire groups to wind and unwind simultaneously, simplifying the transmission structure of the hoist, reducing the failure rate of the equipment, and improving the synchronism and coordination of the hoist's control of the lifting of the carrier plate, ensuring the stable operation of the picking and placing device.

[0012] Optionally, the interior of the carrier plate is hollow, and a driving assembly is arranged inside the carrier plate, the driving assembly includes a first motor, a first gear and a first rack, the first motor is fixed to the carrier plate, the output end of the first motor is fixed to the center of the first gear, the first gear is meshed with the first rack, the first rack is fixed on the steel support bar and the lengths of the two are set in the same direction; two steel support bars are provided, the two steel support bars are arranged in parallel and a connecting rod is fixed between them; two groups of driving assemblies are provided, and the two groups of driving assemblies are distributed on both sides of the two steel support bars in a centrally symmetrical shape; along the sliding direction of the steel support bar, the first gear is located close to the edge of the support plate.

[0013] By adopting the above technical solution, the first motor drives the first gear to rotate, thereby driving the first rack meshing with the first gear to move, so as to realize the sliding of the steel support bar in the direction of approaching or moving away from the shelf. This gear rack transmission method has high transmission efficiency and accurate transmission ratio, and can accurately control the moving distance and speed of the steel support bar, so as to facilitate the accurate movement of the steel support bar to the bottom of the pallet to complete the cargo pick-up and placement operation. The two steel support bars arranged in parallel and fixed by connecting rods, in conjunction with two sets of centrally symmetrically distributed drive components, enhance the support stability of the pallet, and also realize the movement of the steel support bar towards or away from the shelves on both sides of the guide rail. The first gear is arranged close to the edge of the pallet to shorten the length of the force arm, which is more labor-saving when driving the steel support bar to move, improves the working efficiency of the drive component, and also reduces the energy consumption of the first motor.

[0014] Optionally, a slide rail is provided on the carrier plate, and the steel support bar is slidably provided on the slide rail and cannot be separated from the slide rail in the vertical direction, and the top of the steel support bar protrudes from the top surface of the carrier plate.

[0015] By adopting the above technical solution, the slide rails limit and guide the steel support bars, so that the steel support bars can only slide along the slide rails and cannot be separated from the slide rails in the vertical direction, ensuring the stability of the running track of the steel support bars during the process of picking up and placing goods, avoiding the steel support bars from deviating or falling off the track during the sliding process, and improving the safety and reliability of picking up and placing goods. The top of the steel support bar is protruding from the top surface of the carrier plate, which can be more conveniently inserted into the bottom of the pallet. The pallet can be quickly lifted and transferred without excessively adjusting the height position relationship between the carrier plate and the pallet, which improves the operational efficiency of picking up and placing goods.

[0016] Optionally, a second motor and a turntable are provided on the carrier plate, the second motor is fixed inside the carrier plate, the piston end of the second motor passes through the carrier plate and is fixedly connected to the center of the turntable, and the body of the electric cylinder is fixedly connected to the turntable.

[0017] By adopting the above technical solution, the second motor drives the turntable to rotate, and then the electric cylinder fixedly connected to the turntable rotates, enabling the electric cylinder to drive the clamping member to rotate 360°. This structure provides a flexible rotational power source for the electric cylinder and the clamping member, enabling the picking and placing device to operate on goods at different angles and directions. Especially when dealing with goods on two rows of shelves on one side of the guide rail, it can easily cross the front row of shelves to pick and place goods on the rear row of shelves, greatly enhancing the operation flexibility and application range of the picking and placing device. Combined with the telescopic function of the piston end of the electric cylinder, it further improves the convenience of picking and placing goods.

[0018] Optionally, the clamping member includes a torsion spring, a hook, and a cross bar. One end of the cross bar is fixedly connected to the piston end of the electric cylinder, and the other end is hinged to the hook. The torsion spring is fixed between the hook and the cross bar to keep the hook in a bent shape facing the electric cylinder; a downward flanging is provided at the edge of the tray.

[0019] By adopting the above technical solution, the torsion spring keeps the hook in a bent shape facing the electric cylinder. When the piston end of the electric cylinder approaches the tray, the hook can automatically hook the flanging at the edge of the tray to achieve a temporary connection with the tray. The connection process does not require additional complex operations and is simple and convenient. This connection method has good stability. During the process of dragging the tray, the hook tightly hooks the tray under the action of the torsion spring, preventing the tray from falling off and ensuring the safety of the goods during the transfer process. At the same time, when it is necessary to release the tray, it means that the tray has been pulled close to the shelf of the carrier plate, or even the goods on the tray have abutted against the side wall of the carrier plate. When the electric cylinder continues to apply a pulling force, the hook is forced to open against the elastic force of the torsion spring by the external force, and the tray can be easily separated from the clamping member. Or the electric cylinder stops applying the pulling force and adjusts the position of the carrier plate downward, and the hook can be separated from the flanging, which is also convenient for the subsequent alignment adjustment of the steel support bar to the tray.

[0020] Optionally, the clamping member includes an electromagnet, which is fixed on the piston end of the electric cylinder, and the edge of the tray is made of a magnetically adsorbable material.

[0021] By adopting the above technical solution, after the electromagnet is energized, it generates magnetism and can quickly adsorb the magnetically adsorbable material at the edge of the tray to achieve a firm connection with the tray. The connection process is fast and stable, without the complex operation of mechanical structures, improving the efficiency of picking and placing goods. When it is necessary to release the tray, the power supply of the electromagnet is cut off, the magnetism disappears, and the tray can be separated from the clamping member. The operation is simple and convenient, and the adsorption force of the electromagnet can be adjusted by controlling the current magnitude to meet the picking and placing requirements of different weight goods, enhancing the applicability of the picking and placing device to different goods.

[0022] Optionally, the clamping member includes a suction cup, which is fixed on the piston end of the electric cylinder.

[0023] By adopting the above technical solution, the suction cup makes close contact with the surface of the tray by using atmospheric pressure, realizing the adsorption and fixation of the tray. This connection method is applicable to trays with various surface materials and has wide applicability. When picking up and placing goods, negative pressure is formed inside the suction cup by pumping air, tightly adsorbing the tray. The connection process is rapid and stable. When releasing the tray, air is inflated into the suction cup to destroy the negative pressure state, and the suction cup can be easily separated from the tray. The operation is convenient, and the adsorption force of the suction cup can be controlled by adjusting the degree of air extraction according to actual needs, which can meet the requirements of picking up and placing goods of different weights, improving the versatility and reliability of the picking and placing device.

[0024] In a second aspect, the present application provides a construction method for an elevated three-dimensional cold storage based on a grid structure, adopting the following technical solution: A construction method for an elevated three-dimensional cold storage based on a grid structure includes the following steps: S1. After the racks are assembled in rows, they are fixed on the ground of the cold storage. Two rows of racks are arranged adjacent to each other and are in contact with each other. Taking two rows of racks as a set of rack groups, there is an interval between adjacent rack groups, and the interval distance between adjacent rack groups is between 1.1 and 1.5 times the width of a single row of racks; S2. Guide rails are laid between adjacent rack groups. The length of the guide rails is laid parallel to the length of the racks, and picking and placing devices are installed on the guide rails; S3. Select an idle area in the middle area of the racks; S4. The rack groups and the guide rails are alternately laid until the ground in the cold storage is fully covered.

[0025] By adopting the above technical solution, two rows of racks are arranged adjacent to each other and used as a set of rack groups, making full use of the horizontal space of the cold storage. Compared with the traditional single-row rack arrangement method, the number of racks per unit area is significantly increased, thus effectively improving the storage capacity of the cold storage. The interval distance between adjacent rack groups is set between 1.1 and 1.5 times the width of a single row of racks, which not only provides enough space for the gantry of the picking and placing device to slide on the guide rails, ensuring that the picking and placing device can move smoothly between adjacent rack groups for goods access operations, but also avoids excessive space waste, realizing the optimization of space utilization. Selecting an idle area in the middle area of the racks provides a transfer space for temporarily storing the goods blocking the front row when picking up and placing the goods in the back row of racks, ensuring the smooth progress of the picking and placing operations. By alternately laying the rack groups and the guide rails until the ground of the cold storage is fully covered, an orderly and compact storage layout is formed, making full and reasonable use of the space of the entire elevated three-dimensional cold storage. At the same time, the construction process is standardized, facilitating the organization and management of the construction process, improving the construction efficiency, and the finally built cold storage can meet the high-capacity and high-efficiency storage requirements.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The innovative design enables a single picking and placing device to operate on two rows of shelves on one side of the guide rail. Combining the idle area in the middle of the shelves, it breaks through the traditional picking and placing limitations, greatly improves the space utilization rate of the cold storage, increases the storage capacity, reduces the number of guide rails and picking and placing devices, and lowers the construction and operation costs. 2. From the lifting of the carrier plate to the movement of the steel support bar, multiple components are precisely coordinated. The rectangular slider and the sliding hole are used for guiding, and the winch precisely controls the height of the carrier plate. The gear rack drives the steel support bar to ensure the stability and accuracy of the goods picking and placing process, and improves the operation safety and reliability. 3. The electric cylinder cooperates with the turntable to achieve 360° rotation of the clamping part. Multiple clamping parts (torsion spring hook, electromagnet, suction cup) are adapted to different pallets. The picking and placing device can flexibly adjust the angle and connection method, with simple and efficient operation, significantly enhancing the applicability and versatility of the device. Description of the Drawings

[0027] Figure 1 is the structural schematic diagram of the embodiment of the present application; Figure 2 is the partial structural schematic diagram at the picking and placing device; Figure 3 is the partial structural cross-sectional view at the gantry; Figure 4 is the partial structural cross-sectional view at the carrier plate; Figure 5 is the partial structural cross-sectional view to show the position of the driving component; Figure 6 is the partial structural schematic diagram with the clamping part being a hook; Figure 7 is the partial structural schematic diagram with the clamping part being a suction cup; Figure 8 is the partial structural schematic diagram with the clamping part being an electromagnet.

[0028] Description of the Reference Numerals: 1, shelf; 11, pallet; 2, guide rail; 3, picking and placing device; 31, gantry; 311, sliding hole; 32, carrier plate; 321, slider; 322, slide rail; 33, steel support bar; 331, connecting rod; 4, electric cylinder; 41, second motor; 42, turntable; 5, clamping part; 51, cross bar; 52, hook; 53, torsion spring; 54, electromagnet; 55, suction cup; 551, air supply pipe; 6, winch; 61, steering wheel; 62, fixed pulley; 7, driving component; 71, first motor; 72, first rack; 73, first gear. Detailed Embodiment

[0029] The following is a further detailed description of the present application in combination with the attached Figures 1 - 8 drawings.

[0030] The embodiment of the present application discloses an elevated three-dimensional cold storage based on a grid structure.

[0031] Refer toFigure 1 , an elevated three-dimensional cold storage based on a grid structure includes rows of shelves 1 and guide rails 2 arranged adjacent to the shelves 1, and a picking and placing device 3 is arranged on the guide rails 2. The shelves 1 are built with a grid structure, having good stability and load-bearing capacity. Pallets 11 are placed on the shelves 1, and goods are carried on the top of the pallets 11. There is a distance between the middle area of the bottom surface of the pallet 11 itself and the shelf 1. The guide rails 2 are laid on the ground between adjacent shelves 1, and the length direction thereof is parallel to the length direction of the shelves 1, providing a guiding track for the movement of the picking and placing device 3. Reference Figure 1 and Figure 2 , the picking and placing device 3 is arranged on the guide rails 2, and the picking and placing device 3 includes a gantry 31, a carrier plate 32 and steel support bars 33. The inside of the gantry 31 is hollow, and sliding holes 311 are opened vertically on the vertical inner wall of the gantry 31. Sliders 321 are respectively fixed at both ends of the carrier plate 32, and the end portions of the sliders 321 penetrate through the sliding holes 311 and extend into the gantry 31. Moreover, the cross-section of the slider 321 is rectangular, forming a sliding fit with the sliding holes 311, ensuring that the carrier plate 32 can only move vertically and avoiding deviation.

[0032] Reference Figure 2 and Figure 3 , a winch 6 is installed on the top of the gantry 31. The winch 6 is equipped with two sets of wire groups, corresponding to the sliders 321 at both ends of the carrier plate 32 respectively, and the wire groups are located inside the gantry 31. A turning wheel 61 is also fixed inside the gantry 31. The turning wheel 61 is arranged adjacent to any one of the wire groups of the winch 6 itself. The wire outlet end of the wire group bypasses the turning wheel 61 to change the traction direction of the wire group, realizing the simultaneous winding and unwinding of the two sets of wire groups, thereby driving the carrier plate 32 to rise or fall smoothly. Fixed pulleys 62 are arranged at the corners where the top of the gantry 31 itself turns to the vertical side wall. During the process of the wire group pulling the slider 321, the wire groups are all placed on the fixed pulleys 62.

[0033] Reference Figure 4 and Figure 5, the carrier plate 32 is slidably arranged on the gantry 31 in the vertical direction. Its interior is hollow, and a slide rail 322 is provided at the top. The slide rail 322 adopts a T-shaped slide rail in this embodiment, and the steel support bar 33 cannot be separated from the slide rail 322 in the vertical direction. The steel support bar 33 adopts a C-shaped in this embodiment. A driving assembly 7 is installed inside the carrier plate 32. The driving assembly 7 includes a first motor 71, a first gear 73, and a first rack 72. The first motor 71 is fixed to the carrier plate 32, and its output end is fixedly connected to the center of the first gear 73. The first gear 73 meshes with the first rack 72. The first rack 72 is fixed on the steel support bar 33 and the length setting directions of the two are the same. There are two steel support bars 33, and the two steel support bars 33 are arranged in parallel and fixed to each other by a connecting rod 331. Two sets of driving assemblies 7 are correspondingly provided and are symmetrically distributed on both sides of the two steel support bars 33 in a central symmetry manner. Along the sliding direction of the steel support bar 33, the first gear 73 is located near the edge of the carrier plate 32. During operation, the first motor 71 is started to drive the first gear 73 to rotate, and then drive the first rack 72 to move, so as to realize the sliding of the steel support bar 33 on the slide rail 322 in the direction of approaching or departing from the shelf 1. Moreover, the top of the steel support bar 33 protrudes from the top surface of the carrier plate 32, which is convenient for inserting into the bottom of the tray 11. Reference Figure 1 and Figure 4 , an electric cylinder 4 is rotatably arranged at the bottom of the carrier plate 32, and the electric cylinder 4 is horizontally arranged. A second motor 41 and a turntable 42 are also provided on the carrier plate 32. The second motor 41 is fixed inside the carrier plate 32, and its piston end passes through the carrier plate 32 and is fixedly connected to the center of the turntable 42. The turntable 42 is located on the bottom wall of the carrier plate 32. The turntable 42 is rotatably arranged relative to the carrier plate 32. The rotation axis between the turntable 42 and the carrier plate 32 is arranged in the vertical direction and passes through the center of the carrier plate 32. The body of the electric cylinder 4 is fixedly connected to the turntable 42, and the center of the outer shell of the electric cylinder 4 and the center of the turntable 42 are located on the same vertical line. By driving the turntable 42 to rotate through the second motor 41, the electric cylinder 4 can be rotated 360°. The extension distance of the piston end of the electric cylinder 4 is greater than the width of a single-row shelf 1. Reference Figure 5 , Figure 6 , Figure 7 and Figure 8, a clamping member 5 for temporarily connecting with the tray 11 is fixed to the piston end of the electric cylinder 4. In this embodiment, the clamping member 5 can adopt the following three structural forms: First, the clamping member 5 includes a torsion spring 53, a hook 52, and a cross bar 51. One end of the cross bar 51 is fixedly connected to the piston end of the electric cylinder 4, and the other end is hinged to the hook 52. The torsion spring 53 is fixed between the hook 52 and the cross bar 51 for keeping the hook 52 in a bent shape facing the electric cylinder 4. At the same time, a downward flanging is provided at the edge of the tray 11 for the hook 52 to hook conveniently; Second, the clamping member 5 is an electromagnet 54, and the electromagnet 54 is fixed on the piston end of the electric cylinder 4. The edge of the tray 11 is made of a magnetically adsorbable material, such as iron; Third, the clamping member 5 is a suction cup 55, and the suction cup 55 is fixed on the piston end of the electric cylinder 4. The suction cup 55 is bowl-shaped, and an air supply pipe 551 can be connected to the suction cup 55. The air supply pipe 551 is connected to an external air pump to facilitate air supply into the suction cup 55 to release the temporary connection state between the suction cup 55 and the tray 11. An idle area for temporarily storing goods is arranged in the middle of the single-row shelf 1, and the size of the idle area is reasonably planned according to the size of the goods and the requirements of the picking and placing operation space. The implementation principle of an elevated three-dimensional cold storage based on a grid structure in an embodiment of the present application is as follows: When goods need to be stored or retrieved, the gantry 31 slides on the guide rail 2 to the position of the target shelf 1. The sliding technology of the gantry 31 on the guide rail 2 is the prior art and will not be described in detail. The hoist 6 is used to control the lifting of the carrier plate 32 to the corresponding height of the goods. If it is necessary to pick and place goods on two rows of shelves on one side of the guide rail 2, first start the second motor 41 to make the electric cylinder 4 drive the clamping member 5 to rotate, cross over the front row of shelves 1, and the piston end of the electric cylinder 4 extends to temporarily connect the clamping member 5 with the tray 11 on the rear row of shelves 1. For example, for the clamping member 5 composed of a torsion spring 53, a hook 52, and a cross bar 51, the hook 52 hooks the edge flanging of the tray 11 under the action of the torsion spring 53; if it is the electromagnet 54 clamping member 5, the tray 11 is adsorbed by power-on; for the suction cup 55 clamping member 5, the tray 11 is adsorbed by air extraction. Drag and rotate the tray 11 on the rear row of shelves 1 to the front row of shelves 1 (if there are already goods on the front row of shelves 1, first transport the goods on the front row of shelves 1 to the idle area), then control the steel support bar 33 to move to the bottom of the tray 11, transfer the tray 11 and the goods to the carrier plate 32, and finally transport the goods to the target position. When storing goods, just operate the above process in reverse. The embodiment of the present application also discloses a construction method of an elevated three-dimensional cold storage based on a grid structure.

[0034] Including the following steps: Refer to Figure 1 , S1. After the shelves 1 are assembled in rows, they are fixed on the cold storage floor. Two rows of shelves 1 are arranged adjacent to each other and are in contact with each other. Taking two rows of shelves 1 as a group of shelves, there is an interval between adjacent groups of shelves, and the interval distance between adjacent groups of shelves is between 1.1 and 1.5 times the width of the single-row shelf 1; S2. Lay a guide rail 2 between adjacent shelf groups. The length of the guide rail 2 is laid parallel to the length of the shelf 1, and a picking and placing device 3 is installed on the guide rail 2; S3. Select an area in the middle region of the shelf 1 as the idle area; S4. Lay the shelf groups and the guide rail 2 alternately until the floor in the cold storage is fully covered.

[0035] The embodiments of the specific implementation manners are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An elevated three-dimensional cold storage based on a grid structure, comprising shelves (1) arranged in rows and guide rails (2) arranged between adjacent shelves (1), wherein pallets (11) are placed on the shelves (1), and characterized in that: The guide rail (2) is provided with a pick-up and placement device (3), which comprises a door frame (31), a carrier plate (32) and a steel support bar (33). The door frame (31) is slidably arranged on the guide rail (2) and slides horizontally parallel to the length direction of the shelf (1). The carrier plate (32) is slidably arranged on the door frame (31) in a vertical direction. The steel support bar (33) is slidably arranged on the top of the carrier plate (32) in a direction approaching or moving away from the shelf (1). The carrier plate (32) is horizontally arranged for carrying goods. An electric cylinder (4) is rotatably arranged at the bottom of the carrier plate (32). The electric cylinder (4) is horizontally arranged. The rotation axis between the electric cylinder (4) and the carrier plate (32) is arranged in a vertical direction and passes through the center of the carrier plate (32). A clamp (5) for temporary connection with a pallet (11) is fixed to a piston end of the electric cylinder (4). The extension distance of the piston end of the electric cylinder (4) is greater than the width of the single-row shelf (1). A free area for temporary storage of goods is arranged in the middle of the single-row shelf (1).

2. According to claim 1, the elevated three-dimensional cold storage based on the grid structure is characterized in that: The door frame (31) is hollow inside, a sliding hole (311) is provided on a vertical inner wall of the door frame (31), the sliding hole (311) is provided in a vertical direction, a sliding block (321) is fixed to the end of the carrier plate (32), the end of the sliding block (321) passes through the sliding hole (311) and penetrates into the door frame (31), and the cross section of the sliding block (321) is rectangular; a winch (6) for raising or lowering the sliding block (321) is provided on the top of the door frame (31).

3. The elevated three-dimensional cold storage based on the grid structure according to claim 2 is characterized in that: The wire assembly of the winch (6) is provided with two sets of sliders (321) for corresponding to the two ends of the carrier plate (32); the wire assembly of the winch (6) is located in the door frame (31); a steering wheel (61) is fixed in the door frame (31); the steering wheel (61) is arranged adjacent to any one of the wire assemblies of the winch (6) for simultaneously winding and unwinding the two wire assemblies.

4. The elevated three-dimensional cold storage based on the grid structure according to claim 1 is characterized in that: The carrier plate (32) is hollow inside. A driving assembly (7) is arranged inside the carrier plate (32). The driving assembly (7) comprises a first motor (71), a first gear (73) and a first rack (72). The first motor (71) is fixed to the carrier plate (32). The output end of the first motor (71) is fixed to the center of the first gear (73). The first gear (73) meshes with the first rack (72). The first rack (72) is fixed to the steel support bar (33) and the lengths of the two are arranged in the same direction. Two steel support bars (33) are arranged in parallel and a connecting rod (331) is fixed between them. Two groups of driving assemblies (7) are arranged. The two groups of driving assemblies (7) are distributed on both sides of the two steel support bars (33) in a centrally symmetrical manner. Along the sliding direction of the steel support bar (33), the first gear (73) is located close to the edge of the support plate.

5. The elevated three-dimensional cold storage based on the grid structure according to claim 4 is characterized in that: The carrier plate (32) is provided with a slide rail (322), the steel support bar (33) is slidably arranged on the slide rail (322) and cannot be separated from the slide rail (322) in a vertical direction, and the top of the steel support bar (33) protrudes from the top surface of the carrier plate (32).

6. The elevated three-dimensional cold storage based on the grid structure according to claim 4 is characterized in that: A second motor (41) and a rotating disk (42) are provided on the carrier plate (32); the second motor (41) is fixed inside the carrier plate (32); a piston end of the second motor (41) passes through the carrier plate (32) and is fixedly connected to the center of the rotating disk (42); and a body of the electric cylinder (4) is fixedly connected to the rotating disk (42).

7. The elevated three-dimensional cold storage based on a grid structure according to claim 1 is characterized in that: The clamp (5) comprises a torsion spring (53), a hook (52) and a cross bar (51); one end of the cross bar (51) is fixedly connected to the piston end of the electric cylinder (4), and the other end is hinged to the hook (52); the torsion spring (53) is fixed between the hook (52) and the cross bar (51) to keep the hook (52) in a bent shape facing the electric cylinder (4); and the edge of the tray (11) is provided with a downward flange.

8. The elevated three-dimensional cold storage based on a grid structure according to claim 1 is characterized in that: The clamping member (5) comprises an electromagnet (54), the electromagnet (54) being fixed on the piston end of the electric cylinder (4), and the edge of the tray (11) is made of a magnetically absorbable material.

9. The elevated three-dimensional cold storage based on a grid structure according to claim 1, characterized in that: The clamping member (5) comprises a suction cup (55), and the suction cup (55) is fixed on the piston end of the electric cylinder (4).

10. A construction method for an elevated three-dimensional cold storage based on a grid structure according to claim 1, characterized in that: The following steps are involved: S1, after the shelves (1) are assembled in rows, they are fixed on the floor of the cold storage, two rows of shelves (1) are arranged adjacent to each other, the two rows of shelves (1) are abutted against each other, two rows of shelves (1) form a shelf group, adjacent shelf groups are arranged at intervals, and the distance between adjacent shelf groups is between 1.1 and 1.5 times the width of a single row of shelves (1); S2, laying a guide rail (2) between adjacent shelf groups, wherein the length of the guide rail (2) is laid parallel to the length of the shelf (1), and a pick-and-place device (3) is installed on the guide rail (2); S3, selecting a point in the middle area of ​​the shelf (1) as an empty area; S4, the shelf groups and the guide rails (2) are laid alternately until the floor of the cold storage is completely covered.

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