A receiving and dispatching device of a shelf expansion trolley

Abstract

The utility model discloses a kind of receiving and dispatching devices of shelf capacity expansion trolley, including universal mobile capacity expansion trolley and receiving and dispatching device, receiving and dispatching device contains stand column assembly, lifting system, transmission system, support connecting rod, anti-jamming nylon strip and tensioning mechanism. Stand column assembly provides stable support, lifting system is driven sprocket chain transmission by motor, transmission system realizes trolley lifting with circulating chain with buckle structure, support connecting rod reinforces frame, anti-jamming nylon strip guarantees smooth operation, and tensioning mechanism adjusts chain tension. The utility model effectively utilizes the space below shelf, realizes the orderly storage and receiving and dispatching of capacity expansion trolley, improves warehousing efficiency and safety, simple structure, low in cost, strong practicality.

Description

Technical Field

[0001] This utility model belongs to the field of warehousing and logistics technology, specifically relating to a receiving and dispatching device for a shelf expansion cart, which is particularly suitable for the efficient utilization of space under warehouse shelves and the orderly storage and dispatching of expansion carts. Background Technology

[0002] In existing warehouses, shelving serves as the core storage medium, and the space beneath it often remains largely unused. This space is wasted due to a lack of suitable utilization devices, resulting in low warehouse space utilization. Furthermore, the extension trolleys used to assist in shelving transfers (carrying logistics file boxes or small items) are often stacked separately, occupying additional storage space and easily leading to cluttered stacking, inconvenient retrieval, and even safety hazards such as tipping over or collisions, affecting the overall operational efficiency and safety of the warehouse. Currently, there is no dedicated extension trolley handling device designed specifically for the space under shelving, integrating lifting and transmission systems. To address these shortcomings of existing technology, there is an urgent need for a device that can adapt to the space under shelving and achieve unified storage and handling of extension trolleys. Summary of the Invention

[0003] This utility model aims to solve the problems of wasted space under warehouse shelves and the problems of cluttered stacking, inconvenient retrieval, and safety hazards of expansion carts in the prior art. Technical solution

[0004] To solve the above problems, this utility model provides a receiving and dispatching device for a shelf expansion trolley, including a universal mobile expansion trolley and a receiving and dispatching device; The transceiver device includes a column assembly, a lifting system, a transmission system, a support connecting rod, an anti-jamming nylon strip, and a tensioning mechanism; The transmission system includes a main drive chain (15); The lifting system includes a lifting sprocket (13); The column assembly consists of two sets, which are fixed to the ground by expansion bolts; The lifting system is installed on top of the column assembly and provides lifting power for the expansion trolley; The transmission system is connected to the lifting sprocket (13) of the lifting system via the main transmission chain (15) to drive the expansion trolley to lift. The support connecting rod connects the two sets of column assemblies; The anti-slip nylon strip is installed on the inside of the support connecting rod; The tensioning mechanism is installed at the bottom of the column assembly and is used to adjust the tension of the main drive chain (15) of the transmission system.

[0005] The omnidirectional mobile expansion trolley includes a steel plate welding platform and four omnidirectional wheels.

[0006] The dimensions of the omnidirectional mobile expansion trolley are adapted to the space under the shelf and the transmission path of the receiving and dispatching device. The column assembly is a frame structure formed by welding square tubes. The lifting system includes a lifting motor, a first transmission sprocket, a second transmission sprocket, a first transmission chain (10), a lifting shaft, a bearing seat, and a lifting sprocket; The first transmission sprocket is mounted on the output shaft of the lifting motor, and the second transmission sprocket is mounted on the lifting shaft. The first transmission sprocket and the second transmission sprocket are connected by the first transmission chain (10). The lifting motor drives the lifting shaft to rotate through the first transmission sprocket, the first transmission chain (10), and the second transmission sprocket. The two ends of the lifting shaft are rotatably connected to the column assembly through bearing seats, and the lifting sprocket is fixed on the lifting shaft.

[0007] The transmission system includes a main drive chain (15), a buckle (16), and a nylon slide rail (17); the buckles (16) are installed on the main drive chain (15) in groups of 10 chain pitches; the nylon slide rail is fixed to the inside of the column assembly; the upper part of the main drive chain (15) meshes with the lifting sprocket (13) of the lifting system, and the lower part meshes with the tensioning wheel of the tensioning mechanism.

[0008] The support connecting rod is laterally connected to the two sets of column assemblies by bolts.

[0009] There are a total of 4 anti-snagging nylon strips, which are made of low-friction nylon, and there is a gap of 10-20mm between the anti-snagging nylon strips and the side of the omnidirectional mobile expansion trolley.

[0010] The tensioning mechanism includes a tensioning wheel, a tensioning bracket, a tensioning shaft, bearings, and an adjusting screw; the tensioning shaft passes through the center of the tensioning wheel, and both ends of the tensioning shaft are connected to the tensioning bracket through bearings; the tensioning bracket is connected to the column assembly through the adjusting screw.

[0011] Rotating the adjusting screw can change the height of the tensioning bracket, thereby adjusting the tension of the main drive chain (15) of the transmission system.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Improved space utilization: The expansion cart receiving and dispatching device is integrated into the unused space under the shelf, without taking up additional warehouse floor space, effectively making use of redundant warehouse space. Management efficiency optimization: Enables unified storage, orderly lifting and dispatching of expansion carts, avoiding the messy problems of traditional stacking, reducing the time cost of cart retrieval and placement, and improving warehouse operation efficiency. Operational safety assurance: A stable frame is formed by supporting connecting rods, anti-jamming nylon strips prevent jamming, and a tensioning mechanism ensures stable chain tension. Multiple structural designs avoid safety hazards such as trolley tipping and device jamming, ensuring the safety of equipment and personnel. It is highly practical and economical: the overall structure uses conventional materials such as square tubes, steel plates, and nylon, which are easy to process and have controllable implementation costs; at the same time, the operation only requires the lifting motor drive, without the need for complicated manual intervention, which facilitates large-scale promotion and application. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0014] Figure 1 This is a perspective diagram of the overall system structure.

[0015] Figure 2 This is an overall side view.

[0016] Figure 3 To improve the system diagram.

[0017] Figure 4 This is an enlarged view of the tightening mechanism.

[0018] Figure 5 This is a schematic diagram of the transceiver device at full load. Detailed Implementation

[0019] This utility model embodiment provides a receiving and dispatching device for a shelf expansion cart, such as... Figure 1 As shown ( Figure 1 This is a perspective view of the overall system structure, which clearly shows the assembly relationship of each core component of the device, including the omnidirectional mobile expansion trolley 1 and the transceiver device 2. The column assembly 3 of the transceiver device 2 adopts a frame structure welded from square tubes. The two sets of column assemblies 3 are symmetrically fixed to the ground under the warehouse shelf by expansion bolts. The spacing is determined according to the width of the expansion trolley 1 to ensure that the trolley can enter and exit smoothly.

[0020] like Figure 3 As shown ( Figure 3 To illustrate the system diagram and clarify the connection logic of each component, the bearing housing 12 of the lifting system 4 is bolted to the crossbeam at the top of the column assembly 3. The lifting shaft 11 is installed inside the bearing housing 12, and the lifting sprocket 13 is fixed to both ends of the lifting shaft 11 via a key connection. The lifting motor 8 is fixed to the top of one side of the column assembly 3. A first transmission sprocket 9 is installed on its output shaft, and a second transmission sprocket 24 is installed on the lifting shaft 11. The first transmission sprocket 9 and the second transmission sprocket 24 are connected by a first transmission chain 10, forming a power transmission path.

[0021] like Figure 2 As shown ( Figure 2 This is an overall side view, showing the internal assembly state of the transmission system and the column assembly. The nylon slide rail 17 of the transmission system 5 is fixed to the inside of the column assembly 3 by bolts, and its length covers the entire lifting and lowering range of the trolley. The main drive chain 15 is wound around the lifting sprocket 13 and the tensioning wheel 19 of the tensioning mechanism 18. The buckle 16 is welded to the main drive chain 15, with one set every 10 chain pitches. The shape of the buckle 16 is adapted to the slot at the bottom of the expansion trolley 1 to ensure a firm engagement.

[0022] The supporting connecting rod 6 is a metal square tube, with two layers, two rods in each layer. It is horizontally connected to the two sets of column assemblies 3 by bolts, forming a stable rectangular frame (in combination with...). Figure 1 , Figure 2 The reinforcing effect of the support connecting rod on the overall frame can be observed. The anti-snagging nylon strip 7 is fixed to the inside of the support connecting rod 6 facing the expansion trolley 1 by countersunk bolts. Its surface is smooth, and there is a 10-20mm gap between the anti-snagging nylon strip 7 and the side of the omnidirectional mobile expansion trolley 1 to avoid scratching during lifting.

[0023] like Figure 4 As shown ( Figure 4 (This is an enlarged view of the tensioning mechanism, clearly showing the detailed structure of each component.) The tensioning bracket 20 of the tensioning mechanism 18 is a bent steel plate and is mounted on the mounting plate at the bottom of the column assembly 3 via the adjusting screw 23. The tensioning shaft 21 passes through the tensioning wheel 19 and the bearing 22 and is mounted on the tensioning bracket 20. Rotating the adjusting screw 23 changes the height of the tensioning bracket 20, thereby adjusting the tension of the main drive chain 15 of the transmission system 5 and preventing the chain from loosening or jamming.

[0024] The omnidirectional mobile expansion trolley 1's steel plate welding platform is made of 3mm thick steel plate, and four omnidirectional wheels with brakes are installed at the bottom (combined with...). Figure 1 The overall structure of the trolley and its compatibility with the receiving and transmitting device can be observed. The platform size is slightly smaller than the inner distance between the two sets of column assemblies 3 to ensure that there is no collision with the column during the lifting process.

[0025] In use, push the expansion trolley 1 to the entrance of the receiving / dispatching device 2, aligning the slot at the bottom of the trolley with the buckle 16 on the main drive chain 15. Start the lifting motor 8 to rotate forward, driving the lifting shaft 11 to rotate via the first drive sprocket 9, the first drive chain 10, and the second drive sprocket 24. The lifting shaft 11 drives the lifting sprocket 13 to rotate synchronously, thereby driving the main drive chain 15 to move upward, lifting the trolley to the storage position below the shelf (e.g., Figure 5 As shown, Figure 5 This is a diagram showing the fully loaded receiving and dispatching device, which allows for a direct observation of the orderly storage arrangement of the expansion cart under the shelf. When retrieving the vehicle, the lifting motor 8 is started and reversed, causing the lifting shaft 11 to rotate in the opposite direction. This drives the lifting sprocket 13 and the main drive chain 15 to move in the opposite direction, and the main drive chain 15 drives the trolley to descend to the ground (in conjunction with...). Figure 2 The lateral posture of the trolley during descent can be observed to ensure a stable descent path. Loosening buckle 16 will push the trolley out. The tensioning mechanism 18 can be adjusted periodically via adjusting screw 23 (refer to...). Figure 4 (Details of the tensioning mechanism), change the height of the tensioning bracket 20 to ensure that the main drive chain 15 of the transmission system 5 is in a proper tension state, and avoid jamming or chain derailment during operation.

[0026] This utility model provides a receiving and dispatching device for a shelf expansion cart. There are many methods and approaches to implement this technical solution; the above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A receiving and dispatching device for a shelf expansion cart, characterized in that, It includes a universal mobile expansion trolley (1) and a transceiver device (2); The transceiver device (2) includes a column assembly (3), a lifting system (4), a transmission system (5), a support connecting rod (6), an anti-jamming nylon strip (7), and a tensioning mechanism (18). The transmission system (5) includes a main transmission chain (15); The lifting system (4) includes a lifting sprocket (13); The column assembly (3) has two sets, which are fixed to the ground by expansion bolts; The lifting system (4) is installed on the top of the column assembly (3) to provide lifting power for the expansion trolley; The transmission system (5) is connected to the lifting sprocket (13) of the lifting system (4) via the main transmission chain (15) to drive the expansion trolley (1) to rise and fall. The support connecting rod (6) connects the two sets of column assemblies (3); The anti-slip nylon strip (7) is installed on the inside of the support connecting rod (6); The tensioning mechanism (18) is installed at the bottom of the column assembly (3) and is used to adjust the tension of the main drive chain (15) of the transmission system (5).

2. The apparatus according to claim 1, characterized in that, The omnidirectional mobile expansion trolley (1) includes a steel plate welding platform and four omnidirectional wheels.

3. The apparatus according to claim 2, characterized in that, The size of the omnidirectional mobile expansion trolley (1) is adapted to the space under the shelf and the transmission path of the receiving and dispatching device (2).

4. The apparatus according to claim 3, characterized in that, The column assembly (3) is a frame structure formed by welding square tubes.

5. The apparatus according to claim 4, characterized in that, The lifting system (4) includes a lifting motor (8), a first transmission sprocket (9), a second transmission sprocket (24), a first transmission chain (10), a lifting shaft (11), a bearing seat (12), and a lifting sprocket (13). The first transmission sprocket (9) is mounted on the output shaft of the lifting motor (8), and the second transmission sprocket (24) is mounted on the lifting shaft (11). The first transmission sprocket (9) and the second transmission sprocket (24) are connected by the first transmission chain (10). The lifting motor (8) drives the lifting shaft (11) to rotate through the first transmission sprocket (9), the first transmission chain (10), and the second transmission sprocket (24). The two ends of the lifting shaft (11) are rotatably connected to the column assembly (3) through the bearing seats (12). The lifting sprocket (13) is fixed on the lifting shaft (11).

6. The apparatus according to claim 5, characterized in that, The transmission system (5) includes a main drive chain (15), a buckle (16), and a mixed nylon slide rail (17); the buckles (16) are installed on the main drive chain (15) in groups of 10 chain pitches; the nylon slide rail (17) is fixed to the inside of the column assembly (3); the upper part of the main drive chain (15) meshes with the lifting sprocket (13) of the lifting system (4), and the lower part meshes with the tensioning wheel (19) of the tensioning mechanism (18).

7. The apparatus according to claim 6, characterized in that, The support connecting rod (6) is laterally connected to the two sets of column assemblies (3) by bolts.

8. The apparatus according to claim 7, characterized in that, There are four anti-slip nylon strips (7), which are made of low-friction nylon, and there is a gap of 10-20mm between the anti-slip nylon strips (7) and the side of the omnidirectional mobile expansion trolley (1).

9. The apparatus according to claim 8, characterized in that, The tensioning mechanism (18) includes a tensioning wheel (19), a tensioning bracket (20), a tensioning shaft (21), a bearing (22), and an adjusting screw (23); the tensioning shaft (21) passes through the center of the tensioning wheel (19), and the two ends of the tensioning shaft (21) are connected to the tensioning bracket (20) through the bearing (22), and the tensioning bracket (20) is connected to the column assembly (3) through the adjusting screw (23).

10. The apparatus according to claim 9, characterized in that, Rotating the adjusting screw (23) can change the height of the tensioning bracket (20), thereby adjusting the tension of the main drive chain (15) of the transmission system (5).

Images