Stair climbing device

Abstract

The utility model relates to mechanical control technical field, especially a kind of stair climbing device, including main platform, front platform and rear platform, the bottom of front platform and the bottom of rear platform are separately provided with first rotary drive mechanism and second rotary drive mechanism, the output of first rotary drive mechanism is provided with first wheel, the output of second rotary drive mechanism is provided with second wheel, the one end of main platform close to front platform is provided with first lifting mechanism, the top of front platform is provided with first connecting piece, the output of first lifting mechanism is connected with first connecting piece, the one end of main platform close to rear platform is provided with second lifting mechanism, the top of front platform is provided with second connecting piece, the output of second lifting mechanism is connected with second connecting piece.The utility model whole structure is simple, and the number of parts is less, reduces manufacturing cost, is convenient for maintenance and popularization and use, improves use safety, with good versatility and environmental adaptability.

Description

Technical Field

[0001] This utility model relates to the field of mechanical control technology, and in particular to a stair climbing device. Background Technology

[0002] In daily life, some intelligent robots often need to move around using stairs. In recent years, some designs for automated stair-climbing devices have emerged. These devices typically employ wheeled or tracked structures, enabling them to move to a certain extent on stairs. However, existing technologies still have many shortcomings. For example, some devices have complex structures and high manufacturing costs, making large-scale application difficult; others have limited adaptability to stair slopes and step heights, making it difficult to meet the needs of use in different environments. Utility Model Content

[0003] The present invention aims to at least solve the technical problems existing in the prior art. To this end, the present invention proposes a stair-climbing device, which has a simple structure, low failure rate, stable operation, and strong adaptability.

[0004] A stair-climbing device according to some embodiments of the present invention includes a main platform, a front platform, and a rear platform. A first rotary drive mechanism and a second rotary drive mechanism are respectively provided at the bottom of the front platform and the bottom of the rear platform. A first wheel is provided at the output end of the first rotary drive mechanism, and a second wheel is provided at the output end of the second rotary drive mechanism. A first lifting mechanism is provided at the end of the main platform near the front platform, and a first connecting member is provided at the top of the front platform. The output end of the first lifting mechanism is connected to the first connecting member. A second lifting mechanism is provided at the end of the main platform near the rear platform, and a second connecting member is provided at the top of the rear platform. The output end of the second lifting mechanism is connected to the second connecting member.

[0005] A stair-climbing device according to some embodiments of the present invention has at least the following beneficial effects: This invention achieves stable movement on stairs by setting up a main platform, a front platform, and a rear platform, and combining the control of a rotary drive mechanism and a lifting mechanism. The overall structure is simple, with few parts, reducing manufacturing costs and facilitating maintenance and widespread use. The first and second wheels at the bottom of the front and rear platforms provide support and movement on the ground or stairs. At the same time, the first and second lifting mechanisms adjust the posture of the main platform, effectively improving the stability of the robot when going up and down stairs, avoiding the risk of tilting or tipping over, and improving safety. In addition, the robot can adjust the height difference of the lifting mechanism according to the height and slope of different stairs, thus adapting to various stair environments of different specifications, such as residential buildings, shopping malls, office buildings, etc., and has good versatility and environmental adaptability.

[0006] According to some embodiments of the present invention, a stair climbing device is provided with a first guide rod at the top of the main platform, a first upright at the top of the front platform, a first guide block at the top of the first upright, and the first guide rod passing through the first guide block.

[0007] According to some embodiments of the present invention, a stair climbing device is provided with a second guide rod at the top of the main platform, a second upright at the top of the rear platform, a second guide block at the top of the second upright, and the second guide rod passing through the second guide block.

[0008] According to some embodiments of the present invention, a stair-climbing device is provided at the bottom edge of the main platform, and a plurality of connecting plates are rotatably provided on the connecting plates.

[0009] According to some embodiments of the present invention, a stair climbing device includes a first connecting member comprising a first base plate, a first side plate, and a first connecting block. The first base plate is connected to the first connecting block via the first side plate, the first connecting block is connected to the first lifting mechanism, and the first base plate is connected to the front platform.

[0010] According to some embodiments of the present invention, a stair climbing device includes a first lifting mechanism comprising a first drive motor, a first lead screw, and a first lead screw nut, wherein the first lead screw nut is screwed onto the first lead screw, and the output end of the first drive motor is connected to the first lead screw.

[0011] According to some embodiments of the present invention, a stair-climbing device includes a second connecting member comprising a lifting rod, a second base plate, a second side plate, and a second connecting block. The second base plate is connected to the second connecting block via the second side plate. The second connecting block is connected to the second lifting mechanism. The second base plate is connected to the top of the lifting rod, and the bottom of the lifting rod is connected to the top of the rear platform.

[0012] According to some embodiments of the present invention, a stair climbing device includes a second lifting mechanism comprising a second drive motor, a second lead screw, and a second lead screw nut, wherein the second lead screw nut is screwed onto the second lead screw, and the output end of the second drive motor is connected to the second lead screw.

[0013] According to some embodiments of the present invention, a stair-climbing device has a sensor installed at the front end of the front platform.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 .

[0017] Reference numerals: 1. Main platform; 2. Front platform; 3. Rear platform; 4. First rotary drive mechanism; 5. Second rotary drive mechanism; 6. First wheel; 7. Second wheel; 8. First lifting mechanism; 9. First connecting piece; 10. Second lifting mechanism; 11. Second connecting piece; 12. First guide rod; 13. First upright; 14. First guide block; 15. Second guide rod; 16. Second upright; 17. Second guide block; 18. Connecting plate; 19. Third wheel; 20. First base plate; 21. First side plate; 22. First connecting block; 23. First drive motor; 24. First lead screw; 25. First lead screw nut; 26. Lifting rod; 27. Second base plate; 28. Second side plate; 29. ​​Second connecting block; 30. Second drive motor; 31. Second lead screw; 32. Second lead screw nut; 33. Sensor. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, left, right, front, and back, are based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] like Figures 1-2 As shown in the figure, this utility model embodiment provides a stair climbing device.

[0023] A stair-climbing device includes a main platform 1, a front platform 2, and a rear platform 3. A first rotary drive mechanism 4 and a second rotary drive mechanism 5 are respectively provided at the bottom of the front platform 2 and the bottom of the rear platform 3. A first wheel 6 is provided at the output end of the first rotary drive mechanism 4, and a second wheel 7 is provided at the output end of the second rotary drive mechanism 5. A first lifting mechanism 8 is provided at the end of the main platform 1 near the front platform 2, and a first connecting member 9 is provided at the top of the front platform 2. The output end of the first lifting mechanism 8 is connected to the first connecting member 9. A second lifting mechanism 10 is provided at the end of the main platform 1 near the rear platform 3, and a second connecting member 11 is provided at the top of the rear platform 3. The output end of the second lifting mechanism 10 is connected to the second connecting member 11.

[0024] This invention achieves stable movement on stairs by setting up a main platform 1, a front platform 2, and a rear platform 3, and combining the control of a rotary drive mechanism and a lifting mechanism. The overall structure is simple, with few parts, reducing manufacturing costs and facilitating maintenance and widespread use. The first wheel 6 and the second wheel 7 at the bottom of the front and rear platforms provide support and movement on the ground or stairs. Simultaneously, the first lifting mechanism 8 and the second lifting mechanism 10 adjust the posture of the main platform 1, effectively improving the robot's stability during stair climbing and avoiding the risk of tilting or tipping over, thus enhancing safety. Furthermore, the robot can adjust the height difference of the lifting mechanism according to the height and slope of different stairs, adapting to various stair environments such as residential buildings, shopping malls, and office buildings, demonstrating good versatility and environmental adaptability.

[0025] The working principle of this utility model is as follows: When the front platform 2 reaches the edge of the stairs, the first lifting mechanism 8 lifts the front platform 2, and the second rotary drive mechanism 5 drives the second wheel 7 of the rear platform 3 to roll, so that the front platform 2 moves to the top of the stairs. Then, the first lifting mechanism 8 drives the front platform 2 to descend and contact the top of the stairs. Subsequently, while the first lifting mechanism 8 continues to drive the first connecting piece 9 to descend relative to the main platform 1, the second lifting mechanism 10 also simultaneously drives the second connecting piece 11 to descend relative to the main platform 1, so that the main platform 1 can rise to the same height as the front platform 2. Finally, the first wheel 6 and the second wheel 7 roll forward, and the second lifting mechanism 10 drives the second connecting piece 11 to rise, so that the rear platform 3 is at the same height as the main platform 1 and the front platform 2. The first wheel 6 then rolls forward to complete the stair climbing step.

[0026] This embodiment of a stair-climbing device includes a first guide rod 12 at the top of the main platform 1, a first upright 13 at the top of the front platform 2, and a first guide block 14 at the top of the first upright 13. The first guide rod 12 passes through the first guide block 14. Specifically, by configuring the first guide rod 12 and the first guide block 14 to cooperate, the main platform 1 and the front platform 2 maintain good linear guidance during lifting, preventing deviation or swaying, and improving stability and safety during operation. In some embodiments, two of each of the first guide rod 12, first upright 13, and first guide block 14 are provided.

[0027] In this embodiment of the stair-climbing device, a second guide rod 15 is provided on the top of the main platform 1, a second upright 16 is provided on the top of the rear platform 3, and a second guide block 17 is provided on the top of the second upright 16. The second guide rod 15 passes through the second guide block 17. Specifically, the cooperation between the second guide rod 15 and the second guide block 17 also provides guidance for the relative movement between the rear platform 3 and the main platform 1, further improving the coordination and stability of the entire device during lifting and moving. In some embodiments, two of the second guide rod 15, the second upright 16, and the second guide block 17 are provided.

[0028] The stair-climbing device described in this embodiment has multiple connecting plates 18 at the bottom edge of the main platform 1, and multiple third wheels 19 are rotatably mounted on the connecting plates 18. Specifically, the multiple rotatable third wheels 19 can assist the main platform 1 in sliding and supporting itself on the ground or stairs, enhancing the robot's ability to pass through different terrains and its flexibility, while reducing frictional resistance and improving operating efficiency.

[0029] The stair-climbing device described in this embodiment includes a first connecting member 9 comprising a first base plate 20, a first side plate 21, and a first connecting block 22. The first base plate 20 is connected to the first connecting block 22 via the first side plate 21. The first connecting block 22 is connected to the first lifting mechanism 8. The first base plate 20 is also connected to the front platform 2. Specifically, the above-mentioned structure is robust and easy to install and disassemble, ensuring a reliable connection between the lifting mechanism and the front platform 2, and improving the strength and durability of the overall mechanical structure.

[0030] The stair-climbing device described in this embodiment includes a first lifting mechanism 8 comprising a first drive motor 23, a first lead screw 24, and a first lead screw nut 25. The first lead screw nut 25 is screwed onto the first lead screw 24, and the output end of the first drive motor 23 is connected to the first lead screw 24. Specifically, the lifting drive is achieved using a lead screw transmission method, which offers high control precision, fast response speed, and provides a large driving force. It is suitable for working environments with frequent start-stop cycles, improving the robot's controllability and reliability.

[0031] The stair-climbing device described in this embodiment includes a second connecting member 11 comprising a lifting rod 26, a second base plate 27, a second side plate 28, and a second connecting block 29. The second base plate 27 is connected to the second connecting block 29 via the second side plate 28. The second connecting block 29 is connected to the second lifting mechanism 10. The second base plate 27 is connected to the top of the lifting rod 26, and the bottom of the lifting rod 26 is connected to the top of the rear platform 3. Specifically, the second connecting member 11 is raised to a certain height by the lifting rod 26. When the rear platform 3 is at the same height as the main platform 1, the second connecting block 29 can be aligned with the second lifting mechanism 10. The components form a stable connection structure, enhancing the linkage performance between the rear platform 3 and the main platform 1, ensuring smooth and orderly lifting movements, and avoiding instability caused by structural loosening.

[0032] The stair-climbing device described in this embodiment includes a second lifting mechanism 10 comprising a second drive motor 30, a second lead screw 31, and a second lead screw nut 32. The second lead screw nut 32 is screwed onto the second lead screw 31, and the output end of the second drive motor 30 is connected to the second lead screw 31. Specifically, similar to the first lifting mechanism 8, the second lifting mechanism 10 also adopts a lead screw drive structure, ensuring the possibility of synchronous lifting of the front and rear platforms, enhancing the overall coordination and operational accuracy of the equipment, and making it suitable for automatic control requirements in complex terrain.

[0033] In this embodiment of the stair-climbing device, a sensor 33 is installed at the front end of the front platform 2. Specifically, by installing the sensor 33, the position of obstacles or steps ahead can be detected in real time, and the height difference of the stairs can also be identified when the front platform 2 is raised, thereby providing data support for subsequent actions.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A stair-climbing device, characterized in that: The system includes a main platform, a front platform, and a rear platform. A first rotary drive mechanism and a second rotary drive mechanism are respectively provided at the bottom of the front platform and the bottom of the rear platform. A first wheel is provided at the output end of the first rotary drive mechanism, and a second wheel is provided at the output end of the second rotary drive mechanism. A first lifting mechanism is provided at the end of the main platform near the front platform, and a first connecting member is provided at the top of the front platform. The output end of the first lifting mechanism is connected to the first connecting member. A second lifting mechanism is provided at the end of the main platform near the rear platform, and a second connecting member is provided at the top of the rear platform. The output end of the second lifting mechanism is connected to the second connecting member.

2. The stair-climbing device according to claim 1, characterized in that: The main platform is provided with a first guide rod at its top, the front platform is provided with a first upright post at its top, the first upright post is provided with a first guide block at its top, and the first guide rod passes through the first guide block.

3. The stair-climbing device according to claim 1, characterized in that: The top of the main platform is provided with a second guide rod, the top of the rear platform is provided with a second upright, the top of the second upright is provided with a second guide block, and the second guide rod passes through the second guide block.

4. A stair-climbing device according to claim 1, characterized in that: Multiple connecting plates are provided at the bottom edge of the main platform, and multiple third wheels are rotatably mounted on the connecting plates.

5. A stair-climbing device according to claim 1, characterized in that: The first connecting member includes a first base plate, a first side plate, and a first connecting block. The first base plate is connected to the first connecting block through the first side plate. The first connecting block is connected to the first lifting mechanism. The first base plate is connected to the front platform.

6. A stair-climbing device according to claim 5, characterized in that: The first lifting mechanism includes a first drive motor, a first lead screw, and a first lead screw nut. The first lead screw nut is screwed onto the first lead screw, and the output end of the first drive motor is connected to the first lead screw.

7. A stair-climbing device according to claim 1, characterized in that: The second connecting member includes a lifting rod, a second base plate, a second side plate, and a second connecting block. The second base plate is connected to the second connecting block via the second side plate. The second connecting block is connected to the second lifting mechanism. The second base plate is connected to the top of the lifting rod, and the bottom of the lifting rod is connected to the top of the rear platform.

8. A stair-climbing device according to claim 7, characterized in that: The second lifting mechanism includes a second drive motor, a second lead screw, and a second lead screw nut. The second lead screw nut is screwed onto the second lead screw, and the output end of the second drive motor is connected to the second lead screw.

9. A stair-climbing device according to claim 1, characterized in that: Sensors are installed at the front end of the front platform.

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