Movable trolley device with replaceable tray
By introducing cleaning and lubrication components into the pallet moving trolley device, the smoothness problem caused by the accumulation of contaminants on the slide rails is solved, enabling convenient and efficient pallet moving and transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO DEJIA PACKAGING EQUIPMENT CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-15
AI Technical Summary
In existing logistics transportation, the slide rails of pallet trolleys become less smooth to move due to the accumulation of contaminants after prolonged use, and the lack of self-lubrication makes operation inconvenient.
A replaceable pallet moving trolley device was designed. By setting a multi-functional mounting base and a moving sleeve between the moving trolley and the horizontal circular rail, and equipping it with a cleaning component and a lubrication component, the cleaning component includes a cleaning self-rotating sleeve and a transmission component, and the lubrication component includes an oil groove and a spring connecting rod, the device can achieve automatic cleaning and lubrication of the slide rail.
It effectively maintains the smoothness of the mobile trolley, and through automatic cleaning and lubrication measures, it avoids the accumulation of dust and contaminants on the slide rail surface, thus improving the convenience and efficiency of operation.
Smart Images

Figure CN224242024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of logistics and transportation technology, specifically to a replaceable pallet moving trolley device. Background Technology
[0002] In the logistics and transportation sector, goods are packaged and stacked together. During stacking, in order to avoid the impact of ground moisture on the goods, pallet structures are placed at the bottom of the goods. When the goods are transferred out of the warehouse, the bottom pallets of the goods need to be removed.
[0003] In current logistics operations, when picking up pallets, the goods need to be clamped first, then the bottom pallet is pushed out, and finally a forklift is used to pick up the goods and deliver them to the logistics vehicle. To improve operational safety, a moving trolley is used to horizontally replace and push out the pallets during the pallet removal operation. The horizontal moving trolley is mainly moved by slide rails and chains. However, after a long period of use, as the slide rails accumulate contaminants, the smoothness of the trolley's movement is greatly affected. Moreover, the slide rails are not easy to self-lubricate after long-term use, making them inconvenient to use. Utility Model Content
[0004] The purpose of this invention is to provide a replaceable pallet moving trolley device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a replaceable pallet moving trolley device, comprising:
[0006] The pallet-retrieving frame has two horizontally symmetrical track supports on one side. Each track support has a horizontal circular rail at its upper end. The upper ends of the two horizontal circular rails are connected to a moving trolley via four sliding components. The sliding components include a multi-functional mounting base and a moving sliding sleeve, which is movably fitted onto the horizontal circular rail.
[0007] A cleaning assembly, wherein the cleaning assembly is movably mounted on both sides of a movable sliding sleeve via a transmission assembly, the cleaning assembly includes two self-rotating cleaning sleeves, and the transmission assembly includes a wheel axle and a synchronous shaft;
[0008] The lubrication assembly is located at the lower end of one side of the multi-functional mounting base. The lubrication assembly includes an oil groove and a spring connecting rod, and one side of the oil groove is connected to the side of the movable sliding sleeve that is fitted with the horizontal circular rail.
[0009] Preferably, the upper ends of the four multi-functional mounting seats are respectively fixed to both sides of the lower end of the mobile trolley by bolts, and several movable sliding sleeves are respectively horizontally fixed through the upper part of the multi-functional mounting seats. The multi-functional mounting seats are provided with rotation grooves on both sides of the movable sliding sleeves, and two cleaning rotation sleeves are respectively inserted into the two rotation grooves and are movably connected to the two movable sliding sleeves through bearings.
[0010] Preferably, the side of the self-rotating cleaning sleeve away from the moving sliding sleeve is symmetrically provided with a plurality of cleaning blades, the plurality of cleaning blades are inclined, and one side of the cleaning blades is in contact with the outer circumferential surface of the horizontal circular rail.
[0011] Preferably, the axle is horizontally rotatable and inserted into the lower end of the multi-functional mounting base. The axle passes through both sides of the multi-functional mounting base and is respectively fitted with a traveling wheel. The lower end of the traveling wheel contacts the upper end of the track support, and the outer circumference of the traveling wheel is provided with anti-slip texture.
[0012] Preferably, the multifunctional mounting base has a groove at the center of its upper end, and gear slots are provided on both sides of the multifunctional mounting base near the cleaning self-rotating sleeve. One side of each gear slot is connected to one side of the self-rotating slot. The two sides of the synchronous shaft are respectively rotatably inserted into the two gear slots and fitted with a moving gear. Several meshing tooth grooves are symmetrically provided on the outer periphery of the cleaning self-rotating sleeve, and one side of the moving gear is meshed with the meshing tooth groove.
[0013] Preferably, the multifunctional mounting base has a transmission groove on one side of the axle, and the axle is fitted with a first bevel gear in the transmission groove. A U-shaped bracket is provided in the groove at the upper end of the transmission groove. A gear shaft is vertically inserted into the center of the U-shaped bracket. The gear shaft passes through the upper and lower ends of the U-shaped bracket and provides a second bevel gear and a third bevel gear respectively. A fourth bevel gear is provided on one side of the synchronous shaft, and one side of the first bevel gear is meshed with the third bevel gear, and one side of the second bevel gear is meshed with the fourth bevel gear.
[0014] Preferably, the oil groove is located on one side of the lower end of the multi-functional mounting base, and an oil delivery groove is connected to the lower end of one side of the oil groove. The upper end of the oil delivery groove passes through one side of the movable sliding sleeve and is connected to the inner circumferential side. A number of balls are symmetrically arranged on the inner circumferential side of the movable sliding sleeve that is fitted with the horizontal circular rail.
[0015] Preferably, an air delivery groove is provided at the upper end of the oil tank on the side away from the oil delivery groove, and a piston groove is horizontally provided on the side of the multi-functional mounting base near the oil tank. The side of the air delivery groove is connected to the piston groove, and a small liquid one-way valve is provided on one side of both the air delivery groove and the oil delivery groove.
[0016] Preferably, the multi-functional mounting base has a telescopic groove on the side near the piston groove, an air supply piston is movably provided on one side of the piston groove, a spring connecting rod is horizontally provided on the side of the air supply piston away from the air supply groove, one side of the spring connecting rod is movably inserted into the telescopic groove and is provided with a telescopic push block, and a return spring is sleeved on the side of the telescopic push block located in the telescopic groove of the spring connecting rod.
[0017] Preferably, the upper sides of the mobile trolley are vertically provided with lubrication reference blocks. When the balls inside the mobile sleeve need lubrication, the multi-functional mounting base moves to the position of the lubrication reference block, and the telescopic push block hits the lubrication reference block and retracts into the telescopic groove.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] A multi-functional mounting base and a movable sliding sleeve are installed between the mobile trolley and the horizontal circular rail. When the mobile trolley is used to replace the pallet horizontally, the movable sliding sleeve slides smoothly along the horizontal circular rail. During the sliding motion of the movable sliding sleeve, the cleaning components and transmission work together to quickly clean and remove dust and contaminants adhering to the surface of the horizontal circular rail, preventing them from entering the connection between the horizontal circular rail and the movable sliding sleeve, thus maintaining the smooth movement of the mobile trolley. When lubrication is required between the movable sliding sleeve and the horizontal circular rail, the lubrication component can self-lubricate the inside of the movable sliding sleeve. The operation is simple, worry-free, and labor-saving. Attached Figure Description
[0020] Figure 1 This is a first-view schematic diagram of the structure of this utility model;
[0021] Figure 2 This utility model Figure 1 Schematic diagram of part A;
[0022] Figure 3 This is a second-view schematic diagram of the structure of this utility model;
[0023] Figure 4 This utility model Figure 3 Schematic diagram of part B;
[0024] Figure 5 This is a cross-sectional view of the connection between the movable sliding sleeve and the horizontal circular rail of this utility model;
[0025] Figure 6 This utility model Figure 5 Schematic diagram of part C;
[0026] Figure 7 This is a schematic diagram of the connection structure between the actuating gear and the cleaning self-rotating sleeve of this utility model;
[0027] Figure 8 This is a schematic diagram of the connection and transmission of the self-rotating cleaning sleeve of this utility model;
[0028] Figure 9 This is a schematic diagram showing the positional relationship of the mobile trolley used in this utility model.
[0029] In the diagram: 1. Mobile trolley; 2. Track support; 3. Horizontal circular rail; 4. Multifunctional mounting base; 5. Mobile sliding sleeve; 6. Sweeping and rotating sleeve; 7. Sweeping blade; 8. Wheel and axle; 9. Walking wheel; 10. First bevel gear; 11. Gear groove; 12. Synchronous shaft; 13. Actuating gear; 14. Meshing tooth groove; 15. U-shaped bracket; 16. Second bevel gear; 17. Third bevel gear; 18. Fourth bevel gear; 19. Oil groove; 20. Oil delivery groove; 21. Piston groove; 22. Air delivery piston; 23. Spring connecting rod; 24. Telescopic push block; 25. Return spring; 26. Air delivery groove; 27. Lubrication reference block; 28. Pallet picker frame; 29. Cargo box; 30. Clamping fixing plate; 31. Sprocket; 32. Cam lifting machine. Detailed Implementation
[0030] 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.
[0031] Please see the appendix Figure 1-9 This application provides the following technical solutions.
[0032] Example 1: A replaceable pallet moving trolley device includes a pallet-retrieving frame 28. Two horizontally symmetrical track supports 2 are arranged on one side of the pallet-retrieving frame 28. Horizontal circular rails 3 are horizontally arranged on the upper ends of both track supports 2. A moving trolley 1 is horizontally mounted on the upper ends of the two horizontal circular rails 3 via four sliding components. The sliding components include a multi-functional mounting base 4 and a movable sliding sleeve 5, which movably engages with the horizontal circular rails 3. A pallet-retrieving area is located at the center of the pallet-retrieving frame 28. Two clamping fixing plates 30 are symmetrically arranged on both sides of the pallet-retrieving area. A cam lifter 32 is located at the lower end of the pallet-retrieving area. A cargo box 29 is placed on the upper end of the cam lifter 32 via a pallet. When the cam lifter 32 pushes... After the pallet and cargo box 29 are raised, two clamping plates 30 hold the cargo box 29 in mid-air. Sprockets 31 and chains are located on both sides of the pallet-retrieving frame 28 on the moving trolley 1. One side of the chain is connected to the moving trolley 1, and the chain pushes the moving trolley 1 horizontally along the horizontal circular track 3. At this time, the moving trolley 1 pushes the pallet under the cargo box 29 out of the cargo box 29. Then the moving trolley 1 returns to its original position to await the next use. A forklift for transporting the cargo box 29 is forked onto a truck and placed for transport. The clamping plates 30, sprockets 31, and cam lifting mechanism 32 are all common equipment structures in the prior art. Figure 9 Simply assemble and use them according to their positional relationships.
[0033] The cleaning assembly is designed to mechanically clean the horizontal circular rail 3 during the movement of the mobile trolley 1. The cleaning assembly is movably mounted on both sides of the movable sliding sleeve 5 via the transmission assembly. The cleaning assembly includes two cleaning rotating sleeves 6, and the transmission assembly includes axle 8 and synchronous shaft 12. The upper ends of four multi-functional mounting seats 4 are respectively fixed to the lower ends of the mobile trolley 1 on both sides by bolts. Several movable sliding sleeves 5 are horizontally fixed through the upper part of the multi-functional mounting seats 4. The multi-functional mounting seats 4 are provided with rotating grooves on both sides of the movable sliding sleeves 5. The two cleaning rotating sleeves 6 are respectively inserted into the two rotating grooves and are movably sleeved with the two movable sliding sleeves 5 through bearings. Several cleaning blades 7 are symmetrically provided on the side of the cleaning rotating sleeves 6 away from the movable sliding sleeves 5. The cleaning blades 7 are all inclined and one side of the cleaning blades 7 is in contact with the outer circumference of the horizontal circular rail 3. When the cleaning rotating sleeves 6 rotate, the cleaning blades 7 can clean the surface of the horizontal circular rail 3.
[0034] The axle 8 rotates horizontally and is inserted into the lower end of the multi-functional mounting base 4. The axle 8 passes through both sides of the multi-functional mounting base 4 and is fitted with walking wheels 9. The lower end of the walking wheels 9 contacts the upper end of the track support 2, and the outer circumference of the walking wheels 9 is provided with anti-slip texture. The upper center of the multi-functional mounting base 4 is provided with a groove. Gear grooves 11 are provided on the side of the multi-functional mounting base 4 near the cleaning self-rotating sleeve 6. One side of each of the two gear grooves 11 is connected to one side of the self-rotating groove. The two sides of the synchronous shaft 12 are respectively rotatably inserted into the two gear grooves 11 and fitted with actuating gears 13. Several meshing tooth grooves 14 are symmetrically provided on the outer circumference of the cleaning self-rotating sleeve 6, and one side of the actuating gear 13 is meshed with the meshing tooth grooves 14. When the synchronous shaft 12 rotates, the two cleaning self-rotating sleeves 6 can be controlled to rotate simultaneously through the two actuating gears 13. When the multi-functional mounting base 4 moves with the moving trolley 1, the lower ends of the two walking wheels 9 rotate on the moving trolley 1.
[0035] The multi-functional mounting base 4 has a transmission groove on one side of the wheel axle 8. The wheel axle 8 is fitted with a first bevel gear 10 in the transmission groove. A U-shaped bracket 15 is provided at the upper end of the transmission groove in the groove. A gear shaft is vertically inserted into the center of the U-shaped bracket 15. The gear shaft passes through the upper and lower ends of the U-shaped bracket 15 and provides a second bevel gear 16 and a third bevel gear 17 respectively. A fourth bevel gear 18 is provided on one side of the synchronous shaft 12. The first bevel gear 10 is meshed with the third bevel gear 17 on one side, and the second bevel gear 16 is meshed with the fourth bevel gear 18 on one side. When the walking wheel 9 controls the wheel axle 8 to rotate, the wheel axle 8 drives the synchronous shaft 12 to rotate through the first bevel gear 10, the second bevel gear 16, the third bevel gear 17 and the fourth bevel gear 18, thereby realizing the cleaning drive.
[0036] In this embodiment: when the chain in the prior art is driven to reciprocate by a motor, the moving trolley 1 slides horizontally on the moving trolley 1 and the horizontal circular rail 3 through the multi-functional mounting base 4 and the moving sliding sleeve 5. At this time, the walking wheel 9 drives the rotation of the wheel axle 8. The wheel axle 8 drives the synchronous shaft 12 to rotate through the first bevel gear 10, the second bevel gear 16, the third bevel gear 17 and the fourth bevel gear 18. At this time, the synchronous shaft 12 controls the actuating gear 13 to actuate the cleaning self-rotating sleeve 6 to rotate, so that the cleaning blades 7 on one side of the two cleaning self-rotating sleeves 6 can perform cleaning operations on the surface of the horizontal circular rail 3.
[0037] Example 2: Based on Example 1, a lubrication assembly is provided to replenish lubricating oil on one side of the movable sliding sleeve 5 that is fitted onto the horizontal circular rail 3. The lubrication assembly is located at the lower end of one side inside the multi-functional mounting base 4. The lubrication assembly includes an oil groove 19 and a spring connecting rod 23. One side of the oil groove 19 is connected to the side of the movable sliding sleeve 5 that is fitted onto the horizontal circular rail 3. The oil groove 19 is located at the lower end of the multi-functional mounting base 4. An oil delivery groove 20 is connected to the lower end of one side of the oil groove 19. The upper end of the oil delivery groove 20 passes through one side of the movable sliding sleeve 5 and is connected to the inner circumference side. The movable sliding sleeve 5 is fitted onto the horizontal circular rail 3. The inner circumference of the circular rail 3 is symmetrically provided with several balls. The upper end of the oil groove 19 away from the oil delivery groove 20 is provided with an air delivery groove 26. The multi-functional mounting base 4 is provided with a piston groove 21 horizontally on the side near the oil groove 19. The side of the air delivery groove 26 is connected to the piston groove 21. Both the air delivery groove 26 and the oil delivery groove 20 are provided with a small liquid check valve. The check valve can also be a diaphragm with a self-sealing elastic hole. When the lubricating oil in the oil groove 19 enters the oil delivery groove 20, it will not fall back into the oil groove 19, thereby realizing the lubrication operation at the joint of the moving sleeve 5 and the horizontal circular rail 3.
[0038] The multi-functional mounting base 4 has a telescopic groove on the side near the piston groove 21. An air-supplying piston 22 is movably mounted on one side of the piston groove 21. A spring connecting rod 23 is horizontally mounted on the side of the air-supplying piston 22 away from the air-supplying groove 26. A telescopic push block 24 is provided on one side of the spring connecting rod 23 that is movably inserted into the telescopic groove. A return spring 25 is sleeved on one side of the telescopic push block 24 located in the telescopic groove. Lubrication reference blocks 27 are vertically mounted on both sides of the upper end of the moving trolley 1. When the balls in the moving sleeve 5 need lubrication, the multi-functional mounting base 4 moves to the position of the lubrication reference block 27. The telescopic push block 24 hits the lubrication reference block 27 and retracts into the telescopic groove. After the moving trolley 1 controls the multi-functional mounting base 4 to move to the position of the lubrication reference block 27, the telescopic push block 24 pushes the air-supplying piston 22 to push the air in the piston groove 21 into the oil groove 19. The lubricating oil in the oil groove 19 enters the moving sleeve 5 through the oil delivery groove 20 to lubricate the sliding contact between the moving sleeve 5 and the horizontal circular rail 3.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A replaceable pallet moving trolley device, characterized in that, include: The pallet-retrieving frame (28) has two horizontally symmetrical track supports (2) on one side. The upper ends of the two track supports (2) are horizontally provided with horizontal circular rails (3). The upper ends of the two horizontal circular rails (3) are horizontally provided with a moving trolley (1) through four sliding components. The sliding components include a multi-functional mounting base (4) and a moving sliding sleeve (5). The moving sliding sleeve (5) is movably connected to the horizontal circular rails (3). The cleaning assembly is movably mounted on both sides of the movable sliding sleeve (5) via the transmission assembly. The cleaning assembly includes two cleaning self-rotating sleeves (6), and the transmission assembly includes a wheel axle (8) and a synchronous shaft (12). The lubrication assembly is located at the lower end of one side of the multi-functional mounting base (4). The lubrication assembly includes an oil groove (19) and a spring connecting rod (23). One side of the oil groove (19) is connected to one side of the horizontal circular rail (3) of the movable sliding sleeve (5).
2. The replaceable pallet moving trolley device according to claim 1, characterized in that: The upper ends of the four multi-functional mounting bases (4) are respectively fixed to the two sides of the lower end of the mobile trolley (1) by bolts. Several movable sliding sleeves (5) are respectively fixed horizontally through the upper part of the multi-functional mounting bases (4). The multi-functional mounting bases (4) are provided with rotation grooves on both sides of the movable sliding sleeves (5). Two cleaning rotating sleeves (6) are respectively inserted into the two rotating grooves and are movably connected to the two movable sliding sleeves (5) through bearings.
3. The replaceable pallet moving trolley device according to claim 2, characterized in that: The cleaning rotating sleeve (6) is symmetrically provided with several cleaning blades (7) on the side away from the moving sliding sleeve (5). The cleaning blades (7) are all inclined and one side of the cleaning blades (7) is in contact with the outer circumferential surface of the horizontal circular rail (3).
4. The replaceable pallet moving trolley device according to claim 3, characterized in that: The axle (8) rotates horizontally and passes through the lower end of the multi-functional mounting base (4). The axle (8) passes through both sides of the multi-functional mounting base (4) and is fitted with a traveling wheel (9). The lower end of the traveling wheel (9) contacts the upper end of the track support (2), and the outer circumference of the traveling wheel (9) is provided with anti-slip texture.
5. The replaceable pallet moving trolley device according to claim 4, characterized in that: The multifunctional mounting base (4) has a groove at the center of its upper end. Gear slots (11) are provided on the side of the multifunctional mounting base (4) near the cleaning self-rotating sleeve (6). One side of each gear slot (11) is connected to one side of the self-rotating slot. The two sides of the synchronous shaft (12) are respectively rotatably inserted into the two gear slots (11) and fitted with a moving gear (13). Several meshing tooth slots (14) are symmetrically provided on the outer periphery of the cleaning self-rotating sleeve (6), and one side of the moving gear (13) is meshed with the meshing tooth slot (14).
6. The replaceable pallet moving trolley device according to claim 5, characterized in that: The multifunctional mounting base (4) has a transmission groove on one side of the axle (8). The axle (8) is fitted with a first bevel gear (10) in the transmission groove. A U-shaped bracket (15) is provided at the upper end of the transmission groove in the groove. A gear shaft is vertically inserted into the center of the U-shaped bracket (15). The gear shaft passes through the upper and lower ends of the U-shaped bracket (15) and is respectively provided with a second bevel gear (16) and a third bevel gear (17). A fourth bevel gear (18) is provided on one side of the synchronous shaft (12). The first bevel gear (10) is meshed with the third bevel gear (17) on one side, and the second bevel gear (16) is meshed with the fourth bevel gear (18) on one side.
7. The replaceable pallet moving trolley device according to claim 6, characterized in that: The oil groove (19) is located on one side of the lower end of the multi-functional mounting base (4). The lower end of one side of the oil groove (19) is connected to the oil delivery groove (20). The upper end of the oil delivery groove (20) passes through one side of the movable sliding sleeve (5) and is connected to the inner circumference. The movable sliding sleeve (5) is fitted with several balls symmetrically on the inner circumference of the horizontal circular rail (3).
8. The replaceable pallet moving trolley device according to claim 7, characterized in that: An air delivery groove (26) is provided at the upper end of the oil tank (19) away from the oil delivery groove (20). A piston groove (21) is horizontally provided on the side of the multi-functional mounting base (4) near the oil tank (19). The side of the air delivery groove (26) is connected to the piston groove (21). A small liquid check valve is provided on one side of both the air delivery groove (26) and the oil delivery groove (20).
9. A replaceable pallet moving trolley device according to claim 8, characterized in that: The multi-functional mounting base (4) has a telescopic groove on the side near the piston groove (21). An air-supplying piston (22) is movably provided on one side of the piston groove (21). A spring connecting rod (23) is horizontally provided on the side of the air-supplying piston (22) away from the air-supplying groove (26). A telescopic push block (24) is provided on one side of the spring connecting rod (23) movably inserted into the telescopic groove. A reset spring (25) is sleeved on the side of the telescopic push block (24) located in the telescopic groove.
10. A replaceable pallet moving trolley device according to claim 9, characterized in that: The upper sides of the mobile trolley (1) are respectively provided with lubrication reference blocks (27). When the ball bearings in the mobile sliding sleeve (5) need lubrication, the multi-functional mounting base (4) moves to the position of the lubrication reference block (27), and the telescopic push block (24) hits the lubrication reference block (27) and retracts into the telescopic groove.