Walking mechanism of medical material allocation and transfer robot

By designing a walking mechanism with springs and rolling balls on the medical supplies allocation and transfer robot, the problem of frictional wear of the moving wheels under high-intensity heavy loads was solved, thereby extending the life of the moving wheels and reducing vibration of the supplies.

CN224256621UActive Publication Date: 2026-05-19HANGZHOU SEEKER ROBOT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521691945.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-05-19
Estimated Expiration
2035-08-11

AI Technical Summary

Technical Problem

The wheels of existing medical supply distribution and transportation robots are prone to plastic deformation and friction wear when subjected to high-intensity heavy loads over a long period of time, thus shortening their service life.

Method used

A traveling mechanism comprising a spring, a limiting post, and a ball bearing was designed. By sharing the pressure through the contraction of the spring and the contact of the ball bearing, the frictional wear of the moving wheel is reduced, and the service life is extended.

Benefits of technology

It effectively reduces frictional wear on the moving wheels, extending their service life, and the rebound effect of the limit tube reduces vibration of medical supplies inside the storage box.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of transfer robots, in particular to a traveling mechanism of a medical material allocation transfer robot, which comprises a transfer robot body and a bottom plate fixedly connected to the bottom of the transfer robot body. Limiting pipes are fixedly connected to the four corners of the top face of the bottom plate correspondingly, a spring is fixedly connected to the bottom face of an inner cavity of each limiting pipe, a limiting column is fixedly connected to the top end of each spring, a supporting plate is fixedly connected to the top ends of the four limiting columns jointly, and auxiliary mechanisms are arranged on the two sides of the supporting plate correspondingly. When medical materials are too heavy, pressure drives the supporting plate to move downwards, the supporting plate moves downwards so as to drive the limiting columns to move downwards to extrude the springs, and when the springs are contracted to designated positions, rolling balls make contact with the bottom face at the moment, and the rolling balls on the two sides of the supporting plate are used for sharing the pressure of the moving wheels.
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Description

Technical Field

[0001] This utility model relates to the field of transfer robot technology, specifically a walking mechanism for a medical supplies allocation and transfer robot. Background Technology

[0002] Medical supply allocation and transportation robots are intelligent devices integrating artificial intelligence, autonomous navigation, and the Internet of Things, primarily used in medical institutions. They can autonomously locate and avoid obstacles using LiDAR and visual sensors, moving precisely in hospital corridors, wards, pharmacies, and other areas. These robots can automatically sort, store, transport, and distribute medical supplies such as medicines, medical devices, specimens, and consumables according to preset programs or instructions, and support integration with hospital information systems to obtain scheduling information. By replacing manual transport work, they improve the efficiency of material flow, reduce human error, and alleviate the non-clinical workload of medical staff. Especially in infectious disease control scenarios, they can reduce the risk of cross-infection, making them an important piece of equipment for smart hospital construction.

[0003] Existing medical supply distribution and transportation robots mostly use traditional rubber or polyurethane materials for their wheels. When carrying a large amount of medical supplies, the wheels need to withstand high-intensity gravity loads for a long time. This continuous heavy load will cause a large pressure in the area where the wheel surface contacts the ground, resulting in plastic deformation of the wheel material under long-term stress, which will aggravate frictional wear between components and shorten the service life of the wheels. To address this, we propose a walking mechanism for medical supply distribution and transportation robots. Utility Model Content

[0004] The purpose of this invention is to provide a walking mechanism for a medical supplies allocation and transportation robot to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A walking mechanism for a medical supply distribution and transport robot includes a transport robot body and a base plate fixedly connected to the bottom of the transport robot body. Multiple moving wheels are installed under the base plate. Limiting tubes are fixedly connected to the four corners of the top surface of the base plate. A spring is fixedly connected to the bottom surface of the inner cavity of each limiting tube. A limiting post is fixedly connected to the top of each spring. A support plate is fixedly connected to the top of the four limiting posts. Auxiliary mechanisms are provided on both sides of the support plate.

[0007] The auxiliary mechanism includes a fixed plate fixedly connected to the side wall of the support plate, and a plurality of support columns are fixedly connected to the bottom surface of the fixed plate, with a ball bearing disposed below each of the plurality of support columns.

[0008] Preferably, a first connecting plate is fixedly connected to the bottom end of the support column, a second connecting plate is movably attached to the bottom surface of the first connecting plate, and a universal ball sleeve is fixedly connected to the bottom surface of the second connecting plate, with the ball rotatably sleeved in the inner cavity of the universal ball sleeve.

[0009] Preferably, both the first connecting plate and the second connecting plate have through holes, and threaded posts are movably inserted into the through holes of the first connecting plate and the second connecting plate, with a nut threadedly sleeved at the threaded end of the threaded post.

[0010] Preferably, the plurality of rolling balls are arranged at equal intervals.

[0011] Preferably, the outer wall of the limiting post is slidably connected to the inner wall of the limiting tube, and after the spring retracts to the designated position, the rolling ball contacts the ground.

[0012] Preferably, a storage box is fixedly connected to the top surface of the support plate.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes springs, limiting posts, and rolling balls to store medical supplies in a storage box on the robot body. The supplies are moved and transported by the rolling motion of the moving wheels. When the medical supplies are too heavy, the pressure causes the support plate to move downwards, which in turn causes the limiting posts to move downwards, compressing the springs. When the springs contract to a designated position, the rolling balls contact the bottom surface. The rolling balls on both sides of the support plate distribute the pressure on the moving wheels, thereby reducing frictional wear between the moving wheel components and extending the service life of the moving wheels. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall and partial structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the auxiliary mechanism of this utility model.

[0019] The following are the reference numerals in the attached diagram: 1. Transfer robot body; 2. Base plate; 3. Moving wheels; 4. Storage box; 5. Support plate; 6. Limiting tube; 7. Limiting column; 8. Auxiliary mechanism; 81. Fixing plate; 82. Supporting column; 83. First connecting plate; 84. Second connecting plate; 85. Universal ball sleeve; 86. Rolling ball; 87. Threaded column; 88. Nut; 9. Spring. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-3 As shown, a walking mechanism for a medical supply distribution and transportation robot includes a transportation robot body 1 and a base plate 2 fixedly connected to the bottom of the transportation robot body 1. Multiple moving wheels 3 are installed below the base plate 2. Limiting tubes 6 are fixedly connected to the four corners of the top surface of the base plate 2. A spring 9 is fixedly connected to the bottom surface of the inner cavity of each limiting tube 6. A limiting post 7 is fixedly connected to the top of each spring 9. A support plate 5 is fixedly connected to the top of the four limiting posts 7. Auxiliary mechanisms 8 are provided on both sides of the support plate 5. The auxiliary mechanisms 8 include a fixing plate 81 fixedly connected to the side wall of the support plate 5. Multiple supporting posts 82 are fixedly connected to the bottom surface of the fixing plate 81. Rolling balls 86 are provided below the multiple supporting posts 82. The multiple rolling balls 86 are equidistantly arranged. The outer wall of the limiting post 7 is slidably connected to the inner wall of the limiting tube 6. After the spring 9 retracts to the designated position, the rolling ball 86 contacts the ground. A storage box 4 is fixedly connected to the top surface of the support plate 5.

[0022] In practice, medical supplies are stored in the storage box 4 on the robot body 1. The medical supplies are moved and transported by the rolling motion of the moving wheels 3. When the medical supplies are too heavy, the pressure causes the support plate 5 to move downward. The downward movement of the support plate 5 causes the limit post 7 to move downward and compress the spring 9. When the spring 9 contracts to the designated position, the rolling ball 86 contacts the bottom surface. The rolling balls 86 on both sides of the support plate 5 share the pressure of the moving wheel 3, thereby extending the service life of the moving wheel 3.

[0023] By utilizing the contraction and rebound effect of the limiting tube 6, vibration reduction can be achieved for the medical supplies inside the storage box 4.

[0024] As a technical optimization of this utility model, a first connecting plate 83 is fixedly connected to the bottom end of the support column 82, a second connecting plate 84 is movably fitted to the bottom surface of the first connecting plate 83, a universal ball sleeve 85 is fixedly connected to the bottom surface of the second connecting plate 84, a ball 86 is rotatably sleeved in the inner cavity of the universal ball sleeve 85, and through holes are opened on the wall panels of the first connecting plate 83 and the second connecting plate 84. A threaded column 87 is movably inserted into the through holes of the first connecting plate 83 and the second connecting plate 84, and a nut 88 is threadedly sleeved on the threaded end of the threaded column 87.

[0025] In specific implementation, by aligning the through holes of the first connecting plate 83 and the second connecting plate 84, inserting the threaded post 87 into the through hole, and turning the nut 88 from the threaded end of the threaded post 87, the ball 86 can be fixed in place by pressing the first connecting plate 83 and the second connecting plate 84 with the threaded post 87 and the nut 88 respectively.

[0026] By removing the nut 88 and the threaded post 87, the second connecting plate 84 can be removed, making it convenient to clean the ball 86 on the second connecting plate 84 and to replace the ball 86, thus enhancing the practicality of the device.

[0027] In use, medical supplies are placed in the storage box 4 on the main body 1 of the transfer robot. The medical supplies are moved and transferred by the rolling of the moving wheels 3. When the medical supplies are too heavy, the pressure drives the support plate 5 to move down. The downward movement of the support plate 5 causes the limiting post 7 to move down and squeeze the spring 9. When the spring 9 contracts to the designated position, the rolling ball 86 contacts the bottom surface. The rolling balls 86 on both sides of the support plate 5 share the pressure of the moving wheels 3. The rolling balls 86 and the moving wheels 3 roll simultaneously to transfer the medical supplies.

[0028] When the ball 86 needs to be disassembled, remove the nut 88 and threaded post 87, remove the second connecting plate 84, and then the ball 86 can be taken out for processing.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A walking mechanism for a medical supplies distribution and transport robot, comprising a transport robot body (1) and a base plate (2) fixedly connected to the bottom of the transport robot body (1), characterized in that, Multiple casters (3) are installed below the base plate (2). Limiting tubes (6) are fixedly connected to the four corners of the top surface of the base plate (2). A spring (9) is fixedly connected to the bottom surface of the inner cavity of each limiting tube (6). A limiting post (7) is fixedly connected to the top of each spring (9). A support plate (5) is fixedly connected to the top of the four limiting posts (7). Auxiliary mechanisms (8) are provided on both sides of the support plate (5). The auxiliary mechanism (8) includes a fixed plate (81) fixedly connected to the side wall of the support plate (5). A plurality of support columns (82) are fixedly connected to the bottom surface of the fixed plate (81), and a ball bearing (86) is provided below each of the plurality of support columns (82).

2. The walking mechanism of a medical supplies distribution and transfer robot according to claim 1, characterized in that, The bottom end of the support column (82) is fixedly connected to a first connecting plate (83), the bottom surface of the first connecting plate (83) is movably fitted with a second connecting plate (84), the bottom surface of the second connecting plate (84) is fixedly connected to a universal ball sleeve (85), and the ball (86) is rotatably sleeved in the inner cavity of the universal ball sleeve (85).

3. The walking mechanism of a medical supplies allocation and transfer robot according to claim 2, characterized in that, Both the first connecting plate (83) and the second connecting plate (84) have through holes. Threaded posts (87) are movably inserted into the through holes of the first connecting plate (83) and the second connecting plate (84). A nut (88) is threaded onto the threaded end of the threaded post (87).

4. The walking mechanism of a medical supplies allocation and transfer robot according to claim 3, characterized in that, The multiple rolling balls (86) are arranged at equal intervals.

5. The walking mechanism of a medical supplies allocation and transfer robot according to claim 4, characterized in that, The outer wall of the limiting post (7) is slidably connected to the inner wall of the limiting tube (6), and after the spring (9) retracts to the designated position, the rolling ball (86) contacts the ground.

6. The walking mechanism of a medical supplies allocation and transfer robot according to claim 1, characterized in that, The top surface of the support plate (5) is fixedly connected to the storage box (4).