Unpowered automatic carrying trolley

Abstract

The utility model discloses an unpowered automatic carrying trolley, which relates to the field of carrying trolleys and comprises a bottom frame, and two connecting shafts are rotatably connected between two sides in the bottom frame; fixed sliding rods are fixed to the four corners of the top end of the bottom frame, sliding blocks are slidably installed on the outer sides of the fixed sliding rods, fixed rods are connected to the top ends of the sliding blocks, a storage rack is fixed to the top ends of the fixed rods, and reset mechanisms are connected between the sliding blocks and the bottom frame. The first spring telescopic rod drives the storage rack to move upwards, the rack also moves upwards along with the storage rack, and finally the moving wheels are driven to rotate reversely, so that the trolley is attached to the high platform again, the storage rack is also aligned with the top end of the high platform in height at the moment, the next conveying task is conveniently completed, the whole device is driven without power, and energy loss is reduced.

Description

A non-powered automatic transport vehicle Technical Field

[0001] This utility model relates to the field of transport trolleys, and in particular to a non-powered automatic transport trolley. Background Technology

[0002] In modern industrial production systems, material handling is a crucial link in the production process, and its efficiency and cost directly affect the overall production line's effectiveness and economic benefits. For a long time, material handling trolleys have played an irreplaceable role in various production scenarios as an important tool for achieving efficient material transfer. However, traditional material handling trolleys have certain limitations in their design principles and technological applications, making it difficult to meet the comprehensive demands of modern industrial production for high efficiency, energy saving, environmental protection, and safety.

[0003] Limitations of manually operated transport carts:

[0004] High labor intensity: Traditional manual handling carts rely entirely on manual operation. Whether pushing, pulling, or loading and unloading materials, workers need to exert considerable physical strength. Under prolonged, high-intensity working conditions, workers are prone to fatigue, which not only affects work efficiency but may also harm their health.

[0005] Efficiency limitations: The speed and strength of manual handling are limited by the physical strength and skill level of workers, making it difficult to achieve high-speed, continuous handling operations. In large-scale production or logistics warehousing scenarios, this inefficient handling method often becomes a bottleneck restricting the overall production process.

[0006] Safety issues: During manual handling, improper operation or lack of physical strength can easily lead to safety accidents such as materials falling or colliding, posing a potential threat to personnel and equipment.

[0007] Limitations of electric pallet trucks:

[0008] Energy consumption and cost: Electric material handling carts rely on batteries or external power sources. While this improves handling efficiency to some extent, it also increases energy consumption and maintenance costs. Battery charging time, lifespan, and replacement costs are all important factors that businesses need to consider.

[0009] Maintenance workload: The motors, batteries, control systems, and other components of the electric pallet trolley require regular maintenance and inspection to ensure their normal operation. This not only increases the company's operating costs but may also lead to equipment failure and affect production schedules due to improper maintenance.

[0010] Environmental adaptability: The use of electric pallet trolleys is strictly limited in special environments such as flammable and explosive environments, and high temperature and humidity environments. Batteries and motors may pose safety hazards and cannot meet the handling needs in these environments.

[0011] Technological Dependence and Upgrades: With continuous technological advancements, the technology of electric material handling carts is also constantly being updated and upgraded. However, technological upgrades often mean higher costs and more complex operation and maintenance requirements, which undoubtedly increases the barriers and risks associated with technology application for small and medium-sized enterprises.

[0012] Therefore, it is necessary to propose a non-powered automated transport vehicle to solve the above problems. Summary of the Invention

[0013] In view of this, the purpose of this utility model is to provide a non-powered automatic transport trolley to solve the problems of high labor intensity, low efficiency and difficulty in meeting the needs of large-scale production of manual transport trolleys; while electric transport trolleys require frequent charging or battery replacement, which increases the cost of use and maintenance workload, and their use is limited in some special environments (such as flammable and explosive places).

[0014] To achieve the above objectives, this utility model provides the following technical solution: a non-powered automatic transport trolley, comprising a base frame, with two connecting shafts rotatably connected between the two sides inside the base frame; fixed sliding rods are fixed at the four corners of the top of the base frame, and sliding blocks are slidably installed on the outer side of the fixed sliding rods, with a fixed rod connected to the top of the sliding block, and a shelf fixed to the top of the fixed rod; a reset mechanism is connected between the sliding block and the base frame; a rack is fixed to the middle of the bottom end of the shelf, and a drive mechanism is installed on the base frame, with the rack connected to the drive mechanism, and the drive mechanism drives the connecting shafts to rotate.

[0015] Optionally, the drive mechanism includes a first rotating shaft, with a first gear and a second gear sleeved on the outer side of the first rotating shaft, and the rack and the second gear meshing; platforms of different heights are respectively provided on both sides of the base frame; a third gear is sleeved on the connecting shaft inside the base frame near the higher platform, and a toothed belt is drivingly connected between the first gear and the third gear.

[0016] Optionally, a top frame is fixed to the top of the four fixed sliding rods, and an airbag is fixedly connected to the top of the top frame. The airbag is connected downward to an air tube. Two output ports are opened on the air tube, and the two output ports correspond to the positions of the second gear and the third gear, respectively.

[0017] Optionally, support plates are fixed at the center of both sides of the top of the base frame, and the first rotating shaft is rotatably connected between the two support plates.

[0018] Optionally, both ends of the two connecting shafts extend out of the base frame, and the extended ends are equipped with casters.

[0019] Optionally, the reset mechanism includes a first spring telescopic rod, which is connected between the sliding block and the base frame.

[0020] Optionally, the top of the shelf is inclined downward toward the lower end of the platform; the shelf is positioned above the top shelf.

[0021] Optionally, a second spring telescopic rod is embedded in the lower end of the shelf platform, and a limit block is fixed to the end of the second spring telescopic rod.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. The rack is lowered by the gravity of the material. At the same time, the rack at the bottom of the rack moves downward and drives the first rotating shaft to rotate. The first rotating shaft drives the connecting shaft to rotate through the toothed belt, thereby moving the moving wheel and allowing the trolley to move towards the lower platform. Finally, when the trolley reaches the lower platform, the impact force and inertia will cause the material to slide onto the lower platform, completing the material conveying.

[0024] 2. After the material is conveyed, the shelf is no longer affected by the weight of the material. The first spring telescopic rod drives the shelf to move upward, and the rack moves upward as well. Finally, it drives the moving wheel to rotate in the opposite direction, so that the trolley is in contact with the higher platform again. At this time, the shelf is also aligned with the top of the higher platform, which is convenient for completing the next conveying task. The whole device is driven without power, reducing energy consumption.

[0025] 3. When the shelf moves downward, it will compress the air bladder. The gas generated by the air bladder will be output from the outlet to blow on the second and third gears, removing the dust adhering to the second and third gears and preventing it from affecting the rotation.

[0026] 4. When the trolley approaches the lower platform, the limiting block and one side of the platform are squeezed together, so that the limiting block is close to the end of the shelf, forming a platform with the same tilt angle, which facilitates the material to slide down. During transportation, the second spring telescopic rod drives the limiting block to be in the extended state, which will be slightly higher than the tilt line. At this time, the limiting block can block the bottom of the material to prevent the material from falling during transportation.

[0027] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0029] Figure 1 is a structural schematic diagram of the unpowered automatic transport trolley of this utility model;

[0030] Figure 2 is a schematic diagram of the structure of the second and third gears of this utility model;

[0031] Figure 3 is a schematic diagram of the connecting shaft of this utility model;

[0032] Figure 4 is an enlarged schematic diagram of point A in Figure 1 of this utility model.

[0033] Reference numerals in the attached drawings: 1. Moving wheel; 2. Base frame; 3. Fixed slide bar; 4. Top frame; 5. Sliding block; 6. First spring telescopic rod; 7. Shelf; 8. Airbag; 9. Air tube; 10. Rack; 11. Support plate; 12. First rotating shaft; 13. First gear; 14. Second gear; 15. Third gear; 16. Toothed belt; 17. Connecting shaft; 18. Fixed rod; 19. Limiting block. Detailed Implementation

[0034] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] This utility model provides a non-powered automatic transport trolley as shown in Figures 1 to 4, including a base frame 2. Two connecting shafts 17 are rotatably connected between the two sides inside the base frame 2. The two ends of the two connecting shafts 17 extend out of the base frame 2, and the extended ends are provided with moving wheels 1, which can facilitate the movement of the whole device.

[0036] The base frame 2 has platforms of different heights on both sides, and the device is initially attached to the higher platform.

[0037] The four corners of the top of the base frame 2 are fixed with fixed sliding rods 3. Sliding blocks 5 are slidably installed on the outside of the fixed sliding rods 3. The top of the sliding blocks 5 is connected to a fixed rod 18. The top of the fixed rod 18 is fixed with a shelf 7.

[0038] A reset mechanism is connected between the sliding block 5 and the base frame 2;

[0039] A rack 10 is fixed at the middle of the bottom end of the shelf 7. A drive mechanism is installed on the base frame 2. The rack 10 is connected to the drive mechanism. The drive mechanism drives the connecting shaft 17 to rotate. The drive mechanism includes a first rotating shaft 12. A first gear 13 and a second gear 14 are sleeved on the outside of the first rotating shaft 12. The rack 10 and the second gear 14 mesh.

[0040] A third gear 15 is fitted on the connecting shaft 17 near the higher end of the platform inside the base frame 2. A toothed belt 16 is connected between the first gear 13 and the third gear 15 for transmission.

[0041] Working principle: The entire trolley is placed close to the higher platform. At this time, the height of the shelf 7 and the higher platform are the same. The materials on the higher platform can be pushed from the platform to the shelf 7 by an electric push rod.

[0042] At this time, the rack 7 is driven to descend by the gravity of the material. At the same time, the rack 10 at the bottom of the rack 7 moves downward and drives the first rotating shaft 12 to rotate. The first rotating shaft 12 drives the connecting shaft 17 to rotate through the toothed belt 16, thereby moving the moving wheel 1 and allowing the trolley to move towards the lower platform. Finally, the trolley reaches the lower platform, and the impact force and inertia generated at the same time allow the material to slide onto the lower platform, completing the material conveying.

[0043] Once the material conveying is complete, the shelf 7 is no longer affected by the weight of the material. The first spring telescopic rod 6 drives the shelf 7 to move upward, and the rack 10 also moves upward. Finally, it drives the moving wheel 1 to rotate in the opposite direction, so that the trolley is once again in contact with the higher platform. At this time, the shelf 7 is also aligned with the top of the higher platform, which is convenient for completing the next conveying task. The whole device is unpowered, reducing energy consumption.

[0044] The top of the four fixed sliding rods 3 is fixed with a top frame 4. The top of the top frame 4 is fixedly connected with an airbag 8. The airbag 8 is connected downward to an air pipe 9. The air pipe 9 has two output ports, which correspond to the positions of the second gear 14 and the third gear 15, respectively.

[0045] In actual operation of this utility model, when the shelf 7 moves downward, it will squeeze the airbag 8. The gas generated by the airbag 8 will be output from the output port to blow the second gear 14 and the third gear 15, remove the dust adhering to the second gear 14 and the third gear 15, and avoid affecting the rotation.

[0046] Support plates 11 are fixed at the middle of both sides of the top of the base frame 2. The first rotating shaft 12 is rotatably connected between the two support plates 11. The reset mechanism includes a first spring telescopic rod 6, which is connected between the sliding block 5 and the base frame 2. The first spring telescopic rod 6 can reset the shelf 7.

[0047] The top of shelf 7 is tilted downwards towards the lower end of the platform;

[0048] Shelf 7 is located above top shelf 4.

[0049] The shelf 7 has a second spring telescopic rod embedded in the lower end of the platform, and a limit block 19 is fixed to the end of the second spring telescopic rod.

[0050] As shown in Figure 4, in the actual operation of this utility model, when the trolley approaches the lower platform, the limiting block 19 and one side of the platform are squeezed, so that the limiting block 19 approaches the end of the shelf 7, forming a platform with the same tilt angle, which facilitates the material to slide down. During transportation, the second spring telescopic rod drives the limiting block 19 to be in the extended state, which will be slightly higher than the tilt line. At this time, the limiting block 19 can block the bottom of the material to prevent the material from falling during transportation.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A non-powered automatic transport trolley, comprising a base frame (2), characterized in that: The base frame (2) has two connecting shafts (17) rotatably connected between its two sides; the base frame (2) has four fixed sliding rods (3) fixed at its top corners, and sliding blocks (5) are slidably installed on the outside of the fixed sliding rods (3). The top of the sliding blocks (5) is connected to a fixed rod (18), and a shelf (7) is fixed at the top of the fixed rod (18); a reset mechanism is connected between the sliding blocks (5) and the base frame (2); a rack (10) is fixed at the middle of the bottom end of the shelf (7), and a drive mechanism is installed on the base frame (2). The rack (10) is connected to the drive mechanism, and the drive mechanism drives the connecting shafts (17) to rotate.

2. The unpowered automatic transport trolley according to claim 1, characterized in that: The drive mechanism includes a first rotating shaft (12), on the outside of which a first gear (13) and a second gear (14) are sleeved, and the rack (10) and the second gear (14) mesh with each other; platforms of different heights are respectively provided on both sides of the base frame (2); a third gear (15) is sleeved on the connecting shaft (17) inside the base frame (2) near the higher platform, and a toothed belt (16) is connected between the first gear (13) and the third gear (15).

3. The unpowered automatic transport trolley according to claim 1, characterized in that: The top of the four fixed sliding rods (3) is fixed with a top frame (4), and the top of the top frame (4) is fixedly connected with an airbag (8). The airbag (8) is connected downward to an air tube (9). The air tube (9) has two output ports, which correspond to the positions of the second gear (14) and the third gear (15), respectively.

4. The unpowered automatic transport trolley according to claim 2, characterized in that: The base frame (2) has support plates (11) fixed at the middle of both sides of the top, and the first rotating shaft (12) is rotatably connected between the two support plates (11).

5. The unpowered automatic transport trolley according to claim 1, characterized in that: The two ends of the two connecting shafts (17) extend out of the base frame (2), and the extended ends are equipped with moving wheels (1).

6. The unpowered automatic transport trolley according to claim 1, characterized in that: The reset mechanism includes a first spring telescopic rod (6), which is connected between the sliding block (5) and the base frame (2).

7. The unpowered automatic transport trolley according to claim 1, characterized in that: The top of the shelf (7) is tilted downward toward the lower end of the platform; the shelf (7) is located above the top shelf (4).

8. The unpowered automatic transport trolley according to claim 1, characterized in that: The shelf (7) has a second spring telescopic rod embedded in the lower end of the platform, and a limit block (19) is fixed to the end of the second spring telescopic rod.

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