A cold storage cargo rapid storage and handling vehicle

Abstract

This utility model relates to the field of storage and handling vehicle technology, and discloses a rapid storage and handling vehicle for cold storage goods, including wheels and a main body. One side of the wheel is rotatably connected to the bottom of the main body, and a hydraulic telescopic frame is fixedly connected to one side of the main body. A fork carriage is fixedly connected to the top of the hydraulic telescopic frame, and a telescopic component is provided at the bottom of one side of the fork carriage. The telescopic component includes a first fork and a motor, which are located on opposite sides of the bottom of the fork carriage. A fixing component is provided on one side of the first fork, and a second fork is slidably connected to the inside of the first fork via a sliding groove. The second fork has a gear opening, and a third fork is slidably connected to the two sides of the second fork via sliding grooves. In this utility model, the motor drives a gear and rack assembly to control the extension and retraction of each stage of the fork, thereby controlling the fork length and reducing the overall width of the forklift, facilitating passage in narrow aisles, and solving the problem of fork collisions when there is little space between cold storage goods.

Description

Technical Field

[0001] This utility model relates to the field of storage and retrieval vehicles, and in particular to a fast storage and retrieval vehicle for cold storage goods. Background Technology

[0002] Cold storage rapid cargo handling vehicles are specialized handling equipment suitable for cold storage environments. They are primarily used to achieve efficient transfer, storage, and retrieval of goods within cold storage facilities. Through the coordinated operation of its mechanical structure, it can perform actions such as lifting, raising, and moving goods to meet the operational needs of dense storage and rapid turnover in cold storage.

[0003] Existing cold storage cargo handling vehicles mainly consist of traditional forklifts and simple stacking equipment. Traditional forklifts typically consist of a chassis, mast, forks, and power source. The mast is vertically mounted at the front of the chassis, and the forks are horizontally positioned at the front of the mast. Their working principle involves the power source driving the chassis to move, and the mast's lifting function moving the forks up and down. Once the forks are inserted into the bottom of the goods, the mast rises to move the goods; after moving to the target location, the mast lowers to place the goods. Simple stacking equipment mostly uses fixed brackets with manually or electrically driven forks, achieving cargo storage and retrieval on lower-height shelves through a simplified lifting structure.

[0004] In existing technologies, when the gaps between shelves in a cold storage facility are small, the forks of existing storage and retrieval equipment are prone to collisions when extending into or retrieving goods from the shelves. Because the fork's movement trajectory is fixed and its adjustment precision is limited, when the gap between the shelf uprights and the goods is narrow, the sides of the forks may directly contact the shelf uprights, or the fork tips may strike the crossbeams of adjacent shelves. Such collisions can damage the shelf structure, cause goods to fall or be damaged, and disrupt the normal operation of the cold storage facility. Therefore, a rapid cold storage goods storage and retrieval vehicle is proposed to address these problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a fast storage and retrieval vehicle for cold storage goods, which aims to improve the problem of easy collision of forks when the shelf gap is small in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cold storage cargo rapid storage and retrieval transport vehicle includes wheels and a main body. One side of the wheels is rotatably connected to the bottom of the main body, and a hydraulic telescopic frame is fixedly connected to one side of the main body. A fork carriage is fixedly connected to the top of the hydraulic telescopic frame, and a telescopic component is provided at the bottom of one side of the fork carriage.

[0008] The telescopic assembly includes a first fork and a motor, which are located on opposite sides of the bottom of the fork carriage. A fixing component is provided on one side of the first fork, and a second fork is slidably connected to the inside of the first fork via a sliding groove. A gear slot is provided on the second fork, and a third fork is slidably connected to the two sides of the second fork via sliding grooves. The motor is fixedly connected to the outer wall of the fork carriage on one side, and a transmission belt is provided at the output end of the motor. The transmission belt passes through the bottom groove of the fork carriage and extends into the inside of the first fork, and a second gear is provided at the other end of the transmission belt. Transmission devices are provided at both ends of the second gear.

[0009] As a further description of the above technical solution:

[0010] The transmission device includes multiple racks, which are located on both sides of the gear and mesh with the gear.

[0011] As a further description of the above technical solution:

[0012] The top of rack one is fixedly connected to the bottom of fork two, and gear one is rotatably connected to the outer wall of rack one on one side. Rack two is fixedly connected to the top of fork one.

[0013] As a further description of the above technical solution:

[0014] The bottom of the fork three is fixedly connected to the rack three, the bottom of the gear one meshes with the rack two, and the top of the gear one meshes with the rack three through the gear port.

[0015] As a further description of the above technical solution:

[0016] The fixing assembly includes multiple fixing plates located inside the first fork. The inner wall of the multiple fixing plates is provided with a bottom locking block. The bottom locking block is fixedly connected to a shelf. The shelf is located at the top of the first fork. A rotating shaft is rotatably connected to one side of the fixing plate. An inclined rod is rotatably connected to the outer wall of the rotating shaft.

[0017] As a further description of the above technical solution:

[0018] A ramp block is slidably connected to one side of the ramp bar, a protrusion is fixedly connected to the top of the ramp block, a shell is provided on the outer wall of the protrusion, and one side of the shell is fixedly connected to the outer wall of one of the forks.

[0019] As a further description of the above technical solution:

[0020] A second spring is provided inside the outer casing. One end of the second spring is fixedly connected to the bottom of the protrusion, and the other end of the second spring is fixedly connected to the inner wall of the outer casing.

[0021] As a further description of the above technical solution:

[0022] A spring is provided on one side of the outer shell. One end of the spring is fixedly connected to the outer wall of the outer shell, and the other end of the spring is fixedly connected to one side of the fixing plate.

[0023] This utility model has the following beneficial effects:

[0024] In this invention, a motor drives a gear and rack assembly to control the extension and retraction of each stage of the forks, thereby controlling the length of the forks and reducing the overall width of the forklift. This facilitates passage through narrow aisles and solves the problem of forks colliding easily when the clearance between shelves is small.

[0025] In this invention, the downward pressure of the shelf itself pushes the inclined rod outward by the downward protrusion, so that the fixing plate clamps the bottom block, thereby automatically limiting the horizontal displacement of the shelf, preventing the goods from sliding and falling, and solving the safety hazards and losses caused by the slippery surface of the forks and the tilting and tipping of the goods. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a cold storage goods rapid storage and retrieval transport vehicle proposed in this utility model;

[0027] Figure 2 This is a three-dimensional schematic diagram of a forklift for a cold storage cargo rapid storage and retrieval transport vehicle proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a fixing clamp for a cold storage cargo quick storage and retrieval transport vehicle proposed in this utility model;

[0029] Figure 4 This is an exploded structural diagram of the fork of a cold storage cargo rapid storage and retrieval transport vehicle proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the inclined block structure of a cold storage cargo rapid storage and retrieval transport vehicle proposed in this utility model.

[0031] Legend:

[0032] 1. Fork carriage; 2. Hydraulic telescopic frame; 3. Shelf; 4. Wheels; 5. Main body; 6. Fork 1; 7. Fork 2; 8. Fork 3; 9. Protrusion; 10. Fixing plate; 11. Outer shell; 12. Bottom locking block; 13. Shaft; 14. Spring 1; 15. Angled bar; 16. Motor; 17. Drive belt; 18. Gear 1; 19. Gear 2; 20. Rack 1; 21. Rack 2; 22. Gear slot; 23. Rack 3; 24. Angled block; 25. Spring 2. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 2 and Figure 4 An embodiment of this utility model is provided: a cold storage goods rapid storage and retrieval transport vehicle, including wheels 4 and a main body 5. The wheels 4 cooperate with the main body 5 to roll, so as to achieve the effect of smooth movement of the transport vehicle. A hydraulic telescopic frame 2 is fixedly connected to one side of the main body 5. The hydraulic telescopic frame 2 is used to raise and lower the fork carriage 1 to adjust the storage and retrieval height of the goods. The fork carriage 1 is fixedly connected to the top of the hydraulic telescopic frame 2. The fork carriage 1 is used to support the forks 6 and the telescopic component to realize the carrying function of the goods. A telescopic component is provided at the bottom of one side of the fork carriage 1.

[0035] The telescopic assembly includes a first fork 6 and a motor 16. The motor 16 drives the transmission belt 17 to provide telescopic power. The first fork 6 and the motor 16 are located on opposite sides of the bottom of the fork carriage 1. A fixed component is provided on one side of the first fork 6. A second fork 7 is slidably connected to the inside of the first fork 6 via a groove. The second fork 7 is used to cooperate with the first fork 6 for primary telescopic extension, expanding the load-bearing range of the forks. A gear slot 22 is provided on the second fork 7, which is used to cooperate with a gear 18 and a rack 23 to achieve secondary telescopic extension of the third fork 8. The third fork 8 is slidably connected to the two sides of the second fork 7 via grooves. One side of the motor 16 is fixedly connected to the outer wall of the fork carriage 1. A transmission belt 17 is provided at the output end of the motor 16. The transmission belt 17 is used to transmit the power of the motor 16 to the gear 29 to drive the telescopic movement. The transmission belt 17 passes through the bottom groove of the fork carriage 1 and extends into the inside of the first fork 6. A gear 29 is provided at the other end of the transmission belt 17, which is used to drive the rack. The movement of rack 10 pushes the extension and retraction of fork 27. Gear 29 has transmission devices at both ends, including multiple racks 120. These racks 120 convert the rotational motion of gear 29 into linear motion, driving the fork 27 to move. Multiple racks 120 are located on both sides of gear 29, meshing with it. The top of each rack 120 is fixedly connected to the bottom of fork 27. A gear 18 is rotatably connected to the outer wall of one side of rack 120. Gear 18 is used to cooperate with rack 21 and rack 323 to realize the synchronous extension and retraction of fork 38. Rack 21 is fixedly connected to the top of fork 16. Rack 21 is used to mesh with gear 18 to transmit motion to fork 38. Rack 323 is fixedly connected to the bottom of fork 38. Rack 323 is used to mesh with gear 18 to drive fork 38 to extend and retract. The bottom of gear 18 meshes with rack 21, and the top of gear 18 meshes with rack 323 through gear port 22.

[0036] Reference Figures 1-3 and Figure 5The fixing assembly includes multiple fixing plates 10, which are used to clamp the bottom latches 12 and fix the position of the shelf 3. The multiple fixing plates 10 are located inside the fork 6. The inner wall of the multiple fixing plates 10 is provided with bottom latches 12, which are used to cooperate with the fixing plates 10 to lock the shelf 3. The bottom latches 12 are fixedly connected to the shelf 3, which is used to place goods for easy access by the pallet truck. The shelf 3 is located at the top of the fork 6. A rotating shaft 13 is rotatably connected to one side of the fixing plates 10. The rotating shaft 13 is used to support the rotational movement of the fixing plates 10 and realize the clamping and releasing functions. A sloping bar 15 is rotatably connected to the outer wall of the rotating shaft 13. A sloping block 24 is slidably connected to one side of the sloping bar 15. The sloping block 24 is used to push the sloping bar 15 to rotate, thereby driving the fixing plates 10 to move. The top of the sloping block 24 is fixedly connected to... A protrusion 9 is provided, which is used to transmit the elastic force of the second spring 25 to the inclined block 24 and control the clamping force of the fixed clamping plate 10. The outer wall of the protrusion 9 is provided with a shell 11, which is used to accommodate the internal structure of the fixing component and provide protection. One side of the shell 11 is fixedly connected to the outer wall of the first fork 6. The second spring 25 is provided inside the shell 11. The second spring 25 is used to provide the reset elastic force of the protrusion 9 and maintain the clamping state of the fixed clamping plate 10. One end of the second spring 25 is fixedly connected to the bottom of the protrusion 9, and the other end of the second spring 25 is fixedly connected to the inner wall of the shell 11. A first spring 14 is provided on one side of the shell 11. The first spring 14 is used to assist the fixed clamping plate 10 in resetting and ensure a rapid response when releasing the shelf 3. One end of the first spring 14 is fixedly connected to the outer wall of the shell 11, and the other end of the first spring 14 is fixedly connected to one side of the fixed clamping plate 10.

[0037] Working principle: When the forks are extended or retracted, the motor 16 is started first. The transmission belt 17 connected to its output end drives the gear 19 to rotate, causing the rack 20 to move back and forth. The fork 7 at the top of the rack 20 also extends or retracts synchronously. At the same time, the gear 18 on one side of the rack 20 rotates back and forth. The gear 18 partially meshes with the rack 23 through the gear port 22, and the fork 8 also extends or retracts accordingly. This achieves the purpose of controlling the length of the forks and reducing the overall width of the forklift, making it easier to pass through narrow passages and solving the problem of forks colliding when the gaps between goods in cold storage are small.

[0038] When fixing the rack 3, first push the forks into the base of the rack 3. Under the weight of the rack 3 itself, the protrusion 9 is pressed down, the second spring 25 is compressed, the inclined block 24 moves down and pushes the inclined rod 15 outward, pushing the fixing plate 10 to lock the bottom block 12. The anti-slip teeth on the surface of the fixing plate 10 make the rack 3 slide only in the vertical direction. When the rack 3 is removed, the reaction force of the second spring 25 makes the inclined block 24 and the protrusion 9 rise, and the inclined rod 15 retracts under the action of the first spring 14, releasing the fixing plate 10 from the bottom block 12. This achieves the purpose of automatically limiting the horizontal displacement of the rack 3, preventing the goods from sliding and falling, and solving the safety hazards and losses caused by the slippery surface of the forks and the tilting and tipping of the goods.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid access trolley for use in a refrigerated warehouse, comprising wheels (4) and a main body (5), characterised in that: The wheel (4) is rotatably connected to the bottom of the main body (5) on one side, and a hydraulic telescopic frame (2) is fixedly connected to one side of the main body (5). A fork carriage (1) is fixedly connected to the top of the hydraulic telescopic frame (2), and a telescopic component is provided at the bottom of one side of the fork carriage (1). The telescopic assembly includes a fork (6) and a motor (16). The fork (6) and the motor (16) are located on the bottom sides of the fork carriage (1). A fixing component is provided on one side of the fork (6). A fork (7) is slidably connected to the inner groove of the fork (6). A gear opening (22) is provided on the fork (7). A fork (8) is slidably connected to the two sides of the fork (7). One side of the motor (16) is fixedly connected to the outer wall of the fork carriage (1). A transmission belt (17) is provided at the output end of the motor (16). The transmission belt (17) passes through the bottom groove of the fork carriage (1) and extends into the interior of the fork (6). A gear (19) is provided at the other end of the transmission belt (17). A transmission device is provided at both ends of the gear (19).

2. The quick access pallet jack for freezer cargo as claimed in claim 1, wherein: The transmission device includes multiple racks (20), which are located on both sides of the gear (19) and mesh with the gear (19).

3. A quick access trolley for cold storage goods as claimed in claim 2 wherein: The top of the rack one (20) is fixedly connected to the bottom of the fork two (7), and a gear one (18) is rotatably connected to the outer wall of the rack one (20) on one side. The top of the fork one (6) is fixedly connected to the rack two (21).

4. The quick access pallet jack of claim 3, wherein: The bottom of the fork three (8) is fixedly connected to the rack three (23), the bottom of the gear one (18) meshes with the rack two (21), and the top of the gear one (18) meshes with the rack three (23) through the gear port (22).

5. The quick access pallet jack of claim 1, wherein: The fixing assembly includes multiple fixing plates (10), which are located inside the first fork (6). The inner wall of the multiple fixing plates (10) is provided with a bottom locking block (12). The bottom locking block (12) is fixedly connected to a shelf (3). The shelf (3) is located at the top of the first fork (6). A rotating shaft (13) is rotatably connected to one side of the fixing plate (10), and a sloping rod (15) is rotatably connected to the outer wall of the rotating shaft (13).

6. A quick access pallet jack for use in a refrigerated warehouse as defined in claim 5, wherein: The inclined bar (15) is slidably connected to one side of an inclined block (24), and a protrusion (9) is fixedly connected to the top of the inclined block (24). The outer wall of the protrusion (9) is provided with a shell (11), and one side of the shell (11) is fixedly connected to the outer wall of the fork (6).

7. A quick access pallet jack for use in a refrigerated warehouse as defined in claim 6, wherein: The outer shell (11) is provided with a second spring (25), one end of the second spring (25) is fixedly connected to the bottom of the protrusion (9), and the other end of the second spring (25) is fixedly connected to the inner wall of the outer shell (11).

8. A quick access pallet jack for use in a refrigerated warehouse as defined in claim 7, wherein: A spring (14) is provided on one side of the outer shell (11). One end of the spring (14) is fixedly connected to the outer wall of the outer shell (11), and the other end of the spring (14) is fixedly connected to one side of the fixed clamp (10).

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