A non-powered pallet return lifting conveyor mechanism
By using a non-powered ball bearing drive and pneumatic lifting mechanism, combined with reinforcing ribs and infrared sensors, the problems of high cost and insufficient safety of existing conveying mechanisms are solved, and low-cost, high-safety pallet conveying is achieved.
Patent Information
- Application Number
- CN202521177849.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-06-10
AI Technical Summary
Existing conveyor systems are too expensive to produce and maintain, and lack sufficient safety.
It adopts a non-powered ball drive and pneumatic lifting mechanism, combined with reinforcing ribs and infrared sensors, to achieve safe and stable pallet transportation.
It significantly reduces production and maintenance costs, improves the stability and safety of the conveying mechanism, and prevents pallets from falling off and hands from being pinched.
Smart Images

Figure CN224278506U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of smart cards, specifically relating to a non-powered pallet return lifting and conveying mechanism. Background Technology
[0002] A smart card is a general term for a plastic card with an embedded microchip. Some smart cards contain a microelectronic chip. Smart cards need to interact with data through a reader / writer. Smart cards are equipped with a CPU, RAM, and I / O, and can process a large amount of data on their own without interfering with the work of the host CPU. Smart cards can also filter erroneous data to reduce the burden on the host CPU. They are suitable for applications with a large number of ports and high communication speed requirements. The integrated circuits inside the card include a central processing unit (CPU), a programmable read-only memory (EEPROM), random access memory (RAM), and an internal operating system (COS) embedded in the read-only memory (ROM). Data in the card is divided into external reading and internal processing parts. During the production process of smart cards, multiple processes are required, so a conveyor mechanism is needed to transport the raw materials.
[0003] The existing conveying mechanism consists of electric roller conveyor lines, electric chain conveyor belts, electric lifting mechanisms, etc. If only the return of product pallets and the loading and unloading of products are considered, then only the lifting mechanism needs to be retained. The production and maintenance costs of the existing conveying mechanism are too high.
[0004] Therefore, we propose a non-powered pallet return lifting and conveying mechanism. Utility Model Content
[0005] This invention provides a non-powered pallet return lifting and conveying mechanism to solve the technical problems mentioned in the background.
[0006] To solve the above-mentioned technical problems, this utility model provides a non-powered pallet return lifting and conveying mechanism, including a frame, with four support legs fixedly installed at the bottom of the frame. The four support legs are arranged at the bottom of the frame. A pneumatic lifting mechanism is provided inside the frame and electrically connected to an external power supply. Multiple pneumatic lifting mechanisms are provided and arranged at equal intervals. An inlet and an outlet are fixedly installed on the outside of the frame and are arranged on both sides of the frame. Both the inlet and outlet are equipped with pallets.
[0007] Preferably, the pneumatic lifting mechanism includes a slide rail, which is fixedly installed on the inner side of the frame. Multiple slide rails are provided and are arranged at equal intervals. A platform is slidably installed inside the slide rail, and the tray is placed on the platform. An air rod is fixedly installed on the inner side of the frame. The air rod is electrically connected to an external power source, and the output end of the air rod is fixedly connected to the platform.
[0008] Preferably, the discharge port, the inlet port, and the platform are all equipped with ball bearings, and there are multiple ball bearings evenly arranged.
[0009] Preferably, a plurality of reinforcing ribs are fixedly installed at the bottom of the frame, and the plurality of reinforcing ribs are arranged at the four corners below the frame, and the reinforcing ribs and the frame form a triangular structure.
[0010] Preferably, the air rod consists of a cylinder, a piston, a push rod, and a buffer spring. The cylinder is fixedly installed inside the frame, and the air pump is fixedly connected to the cylinder. The piston is slidably installed inside the cylinder, and the push rod is fixedly installed on the top of the piston. The push rod passes through the cylinder, and a buffer spring is sleeved on the outside of the push rod. The two ends of the buffer spring are fixedly connected to the piston and the inner wall of the cylinder, respectively, and the top of the push rod is fixedly connected to a platform.
[0011] Preferably, an infrared sensor is fixedly installed at the bottom of the frame, the infrared sensor is electrically connected to an external power supply, and the output terminal of the infrared sensor corresponds to the platform.
[0012] Preferably, a limiting plate is fixedly installed on the side wall of the frame.
[0013] This invention has the following advantages over the prior art:
[0014] This utility model discloses a non-powered pallet return lifting and conveying mechanism. By setting rollers, the pallet enters the frame through the feed port during use, and the conveying process uses ball bearings. The ball bearings are driven without power, and the pallet moves along the ball bearings. The pallet can be easily moved manually. Furthermore, by changing the electric lifting mechanism to a pneumatic lifting mechanism, production and maintenance costs can be greatly reduced.
[0015] This utility model discloses a non-powered pallet return lifting and conveying mechanism. The bottom of the frame is provided with reinforcing ribs, which form a triangular structure with the frame, effectively improving the overall stability of the frame. At the same time, the side wall of the frame is provided with a limiting plate, which can prevent the pallet from falling off and further improve the safety of use.
[0016] This utility model discloses a non-powered pallet return lifting and conveying mechanism. An infrared sensor is installed at the bottom of the frame to monitor the platform in real time. By controlling the emergency stop of the pneumatic rod, the operator's hand can be prevented from being pinched. The pneumatic rod structure consists of a cylinder, piston, push rod, and buffer spring. When the infrared sensor detects an emergency stop signal, the external air pump stops supplying air. Due to the temperature change caused by gas compression inside the pneumatic rod, a certain amount of inertial displacement still occurs. The buffer spring buffers the piston, applying a reaction force to counteract the remaining kinetic energy, improving emergency stop stability and effectively enhancing operational safety. Attached Figure Description
[0017] Figure 1 This is a structural diagram of a non-powered pallet return lifting and conveying mechanism according to this utility model;
[0018] Figure 2 This is an enlarged view of point A in the non-powered pallet return lifting and conveying mechanism of this utility model;
[0019] Figure 3 This is an assembly structure diagram of the air rod in a non-powered pallet return lifting and conveying mechanism of this utility model;
[0020] Figure 4 This is a cross-sectional view of the air rod in the non-powered pallet return lifting and conveying mechanism of this utility model;
[0021] The following are the labels in the diagram: 1. Frame; 2. Support leg; 3. Reinforcing rib; 4. Feed inlet; 5. Ball bearing; 6. Tray; 7. Limiting plate; 8. Pneumatic lifting mechanism; 9. Discharge port; 10. Slide rail; 11. Platform; 12. Infrared sensor; 13. Air rod; 14. Cylinder; 15. Top rod; 16. Buffer spring; 17. Piston. Detailed Implementation
[0022] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0023] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0024] Please see Figure 1-4This utility model provides a technical solution: a non-powered pallet return lifting and conveying mechanism, including a frame 1, with four support legs 2 fixedly installed at the bottom of the frame 1. The four support legs 2 are arranged at the bottom of the frame 1. A pneumatic lifting mechanism 8 is provided inside the frame 1. The pneumatic lifting mechanism 8 is electrically connected to an external power supply. Multiple pneumatic lifting mechanisms 8 are provided and arranged at equal intervals. A feed inlet 4 and a discharge outlet 9 are fixedly installed on the outside of the frame 1. The feed inlet 4 and the discharge outlet 9 are arranged on both sides of the frame 1. Both the discharge outlet 9 and the feed inlet 4 are provided with a pallet 6.
[0025] Furthermore, the pneumatic lifting mechanism 8 includes a slide rail 10. The slide rail 10 is fixedly installed inside the frame 1. Multiple slide rails 10 are provided and are arranged at equal intervals. A platform 11 is slidably installed inside the slide rail 10. The tray 6 is placed on the platform 11. A pneumatic rod 13 is fixedly installed inside the frame 1. The pneumatic rod 13 is electrically connected to an external power supply. The output end of the pneumatic rod 13 is fixedly connected to the platform 11.
[0026] Furthermore, ball bearings 5 are provided on the discharge port 9, the feed port 4, and the platform 11. There are multiple ball bearings 5, and the multiple ball bearings 5 are evenly arranged.
[0027] Furthermore, a reinforcing rib 3 is fixedly installed at the bottom of the frame 1. There are multiple reinforcing ribs 3, which are arranged at the four corners below the frame 1, and the reinforcing ribs 3 and the frame 1 form a triangular structure.
[0028] Furthermore, the air rod 13 consists of a cylinder 14, a piston 17, a push rod 15, and a buffer spring 16. The cylinder 14 is fixedly installed inside the frame 1, and the air pump is fixedly connected to the cylinder 14. The piston 17 is slidably installed inside the cylinder 14, and the push rod 15 is fixedly installed on the top of the piston 17. The push rod 15 passes through the cylinder 14, and the buffer spring 16 is sleeved on the outside of the push rod 15. The two ends of the buffer spring 16 are fixedly connected to the piston 17 and the inner wall of the cylinder 14, respectively, and the top of the push rod 15 is fixedly connected to the platform 11.
[0029] Furthermore, an infrared sensor 12 is fixedly installed at the bottom of the frame 1. The infrared sensor 12 is electrically connected to an external power supply, and the output terminal of the infrared sensor 12 corresponds to the platform 11.
[0030] Furthermore, a limiting plate 7 is fixedly installed on the side wall of the frame 1.
[0031] Working principle:
[0032] After exiting the process equipment outlet, pallet 6 enters the pneumatic lifting mechanism 8 through the feed inlet 4. The worker manually moves pallet 6 to the positions of the four pneumatic lifting mechanisms 8 in sequence, presses the two-hand start button to raise the pneumatic lifting mechanism 8, and then loads and unloads the products. Pressing the two-hand start button again lowers the pneumatic lifting mechanism 8, and then the worker manually feeds pallet 6 from the discharge outlet 9 into the process equipment inlet. By incorporating rollers, pallet 6 enters the frame 1 through the feed inlet 4, and the conveying process utilizes ball bearings 5, which are non-powered. Pallet 6 moves along the ball bearings 5 and can be easily moved manually. Replacing the electric lifting mechanism with a pneumatic lifting mechanism 8 significantly reduces production and maintenance costs. The bottom of the frame 1 is equipped with reinforcing ribs 3, forming a triangular structure with the frame 1. This design effectively improves the overall stability of the frame 1. A limiting plate 7 is installed on the side wall of the frame 1 to prevent the tray 6 from falling off, further enhancing safety. An infrared sensor 12 is installed at the bottom of the frame 1 to monitor the platform 11 in real time. By controlling the emergency stop of the pneumatic rod 13, it prevents operators from getting their hands caught. The pneumatic rod 13 consists of a cylinder 14, a piston 17, a push rod 15, and a buffer spring 16. When the infrared sensor 12 detects an emergency stop signal, the external air pump stops supplying air. Due to the temperature change caused by gas compression inside the pneumatic rod 13, a certain amount of inertial displacement still occurs. The buffer spring 16 buffers the piston 17 and applies a reaction force to counteract the remaining kinetic energy, improving emergency stop stability and thus effectively enhancing safety.
[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A non-powered pallet return lifting and conveying mechanism, comprising a frame (1), characterized in that: The bottom of the frame (1) is fixedly installed with support legs (2). There are four support legs (2). The four support legs (2) are arranged at the bottom of the frame (1). The frame (1) is provided with a pneumatic lifting mechanism (8). The pneumatic lifting mechanism (8) is electrically connected to an external power supply. There are multiple pneumatic lifting mechanisms (8). The multiple pneumatic lifting mechanisms (8) are arranged at equal intervals. The outside of the frame (1) is fixedly installed with a feed inlet (4) and a discharge outlet (9). The feed inlet (4) and the discharge outlet (9) are arranged on both sides of the frame (1). The discharge outlet (9) and the feed inlet (4) are both provided with a tray (6).
2. The non-powered pallet return lifting and conveying mechanism according to claim 1, characterized in that, The pneumatic lifting mechanism (8) includes a slide rail (10). The slide rail (10) is fixedly installed inside the frame (1). There are multiple slide rails (10), which are arranged at equal intervals. A platform (11) is slidably installed inside the slide rail (10). The tray (6) is placed on the platform (11). A pneumatic rod (13) is fixedly installed inside the frame (1). The pneumatic rod (13) is electrically connected to an external power supply. The output end of the pneumatic rod (13) is fixedly connected to the platform (11).
3. The non-powered pallet return lifting and conveying mechanism according to claim 2, characterized in that, The discharge port (9), the inlet port (4) and the platform (11) are all provided with ball bearings (5), and there are multiple ball bearings (5) evenly arranged.
4. The non-powered pallet return lifting and conveying mechanism according to claim 1, characterized in that, The bottom of the frame (1) is fixedly installed with reinforcing ribs (3). There are multiple reinforcing ribs (3), which are arranged at the four corners below the frame (1) and form a triangular structure with the frame (1).
5. The non-powered pallet return lifting and conveying mechanism according to claim 2, characterized in that, The air rod (13) consists of a cylinder (14), a piston (17), a push rod (15), and a buffer spring (16). The cylinder (14) is fixedly installed inside the frame (1). The air pump is fixedly connected to the cylinder (14). The piston (17) is slidably installed inside the cylinder (14). The push rod (15) is fixedly installed on the top of the piston (17). The push rod (15) passes through the cylinder (14). The buffer spring (16) is sleeved on the outside of the push rod (15). The two ends of the buffer spring (16) are fixedly connected to the piston (17) and the inner wall of the cylinder (14), respectively. The top of the push rod (15) is fixedly connected to the platform (11).
6. The non-powered pallet return lifting and conveying mechanism according to claim 1, characterized in that, An infrared sensor (12) is fixedly installed at the bottom of the frame (1). The infrared sensor (12) is electrically connected to an external power supply, and the output end of the infrared sensor (12) corresponds to the platform (11).
7. The non-powered pallet return lifting and conveying mechanism according to claim 1, characterized in that, The frame (1) has a limiting plate (7) fixedly installed on its side wall.
