A base for an intelligent robot

Abstract

The utility model belongs to robot base technical field, and disclose a base for intelligent robot, including protection shell, the protection shell middle part rotationally connected with threaded column, the protection shell top is firmly connected with drive motor, drive motor's output is firmly connected on threaded column, through the setting of outer spring, inner spring, rotary sleeve and spiral inner rod etc. Structure, and further guarantee the buffer force dynamic balance in the process of robot adjusting chassis height, utilize the sleeve adjustment chassis height to adapt to different topography, reduce the chassis in the flat indoor ground, have the mobile function and the aesthetic degree simultaneously, have practicality to the chassis with the height of outdoor pavement, simultaneously with the height of chassis, the compression force of outer spring and inner spring will switch each other, the main role spring of base buffer also switches each other, thereby keep the chassis of base at any height, the buffer spring of robot walking keeps stable state all the time.

Description

Technical Field

[0001] This utility model belongs to the field of robot base technology, specifically a base for intelligent robots. Background Technology

[0002] Intelligent robots are high-tech systems that integrate multiple disciplines such as mechanics, electronics, computers, and artificial intelligence. The base is the robot's basic support and mobile platform.

[0003] A prior art document (CN212919459U) discloses a base for an intelligent robot, comprising a base, a connecting seat fixedly connected to the top of the base, a connecting rod fixedly connected to the top of the connecting seat, transmission rods movably connected to both sides of the top and bottom of the base's inner cavity, a movable plate fixedly connected to the bottom of the transmission rods, a second buffer spring sleeved on the surface of the transmission rods, and a first buffer plate fixedly connected to the outer side of the transmission rods extending to the outer side of the base. This invention achieves good anti-collision performance by having the transmission rods move inwards upon impact with the first buffer plate, which in turn moves the movable plate, causing the second buffer spring to deform. Upon impact with the second buffer plate, a side rod moves inwards, which in turn moves the fixed plate, causing the third buffer spring to deform. This solves the problem of poor anti-collision performance in existing intelligent robot bases. Although the above applications improve the anti-collision effect of robot bases, the chassis height of traditional intelligent robot bases is usually fixed. Most of them are designed to walk on flat indoor surfaces. When facing obstacles such as thresholds, and when occasionally working outdoors on uneven ground, the limitation of chassis height results in weak obstacle-crossing ability, which is not conducive to the multi-scenario use of intelligent robots. Summary of the Invention

[0004] To address the problem mentioned in the background art that the limitation of chassis height leads to weak obstacle-crossing ability and is not conducive to the multi-scenario use of intelligent robots, this utility model provides a base for intelligent robots.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a base for an intelligent robot, comprising a protective shell, a threaded post rotatably connected to the center of the protective shell, a drive motor fixedly connected to the top of the protective shell, the output end of the drive motor fixedly connected to the threaded post, and a plurality of universal wheels equidistantly arranged around the lower part of the protective shell, further comprising: A chassis lifting mechanism, wherein the chassis lifting mechanism is located inside the protective shell; An elastic adaptive mechanism, which is connected to the chassis lifting mechanism; The chassis lifting mechanism adjusts the height of the robot's chassis, and in conjunction with the elastic adaptive mechanism, it enables the dynamic adjustment of the buffer elasticity during the robot's movement.

[0006] Preferably, the chassis lifting mechanism includes a lifting plate threaded to the outer wall of the threaded column, the top of the lifting plate abutting against a shock-absorbing pad, and the top of the shock-absorbing pad being fixed to the inner cavity of the protective shell.

[0007] Preferably, the lifting plate is fixedly connected to multiple outer sleeves at equal intervals around its circumference, and a first arc-shaped slider is fixedly connected to the inner side wall of the upper end of the outer sleeve.

[0008] Preferably, the bottom of the outer sleeve is fixed to the caster wheel, and an outer spring is sleeved on the lower end of the outer sleeve.

[0009] Preferably, the elastic adaptive mechanism includes a rotating sleeve that is slidably fitted into the inner cavity of the outer sleeve, the top of the rotating sleeve being rotatably connected to a limiting ring, and the top of the limiting ring being fixed to the protective shell.

[0010] Preferably, the outer wall of the rotating sleeve is provided with a spiral groove, the first arc-shaped slider is slidably connected in the spiral groove, and the bottom of the rotating sleeve is elastically connected to the universal wheel through an outer spring.

[0011] Preferably, the inner cavity of the rotating sleeve slides against a helical inner rod via a second arc-shaped slider, and the bottom of the helical inner rod is elastically connected to a universal wheel via an inner spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes an outer spring, inner spring, rotating sleeve, and spiral inner rod to ensure dynamic balance of buffering force during chassis height adjustment. The outer sleeve adjusts the chassis height to adapt to different terrains, allowing it to traverse low obstacles. The chassis can be lowered on flat indoor surfaces, combining mobility and aesthetics. Raising the chassis on outdoor surfaces provides practicality. Furthermore, as the chassis rises, the compression forces of the outer and inner springs switch, and the primary buffering springs also switch, ensuring the robot's cushioning force remains stable at any chassis height. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the orthographic section of the present invention; Figure 2 This utility model Figure 1 Enlarged structural diagram at point A; Figure 3 This is a three-dimensional structural diagram of the present invention; Figure 4 This is a schematic diagram showing the structural relationship and fit between the rotating sleeve and the outer sleeve of this utility model; Figure 5 This is a schematic diagram showing the structural relationship and fit between the spiral inner rod and the rotating sleeve of this utility model.

[0014] In the diagram: 1. Protective shell; 2. Drive motor; 3. Threaded column; 4. Caster wheel; 5. Chassis lifting mechanism; 501. Lifting plate; 502. Shock-absorbing pad; 503. Outer sleeve; 504. First arc-shaped slider; 505. Outer spring; 6. Elastic adaptive mechanism; 601. Rotating sleeve; 602. Limiting ring; 603. Inner spring; 604. Helical groove; 605. Helical inner rod; 606. Second arc-shaped slider. Detailed Implementation

[0015] 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.

[0016] like Figures 1 to 5 As shown, this utility model provides a base for an intelligent robot, including a protective shell 1, a threaded post 3 rotatably connected to the middle of the protective shell 1, a drive motor 2 fixedly connected to the top of the protective shell 1, the output end of the drive motor 2 fixedly connected to the threaded post 3, and a plurality of universal wheels 4 equidistantly arranged around the lower part of the protective shell 1. It also includes: Chassis lifting mechanism 5, which is located inside the protective shell 1; Elastic adaptive mechanism 6, which is connected to chassis lifting mechanism 5; Among them, the chassis lifting mechanism 5 adjusts the height of the robot's chassis, and together with the elasticity adaptive mechanism 6, the buffer elasticity during the robot's walking process can be dynamically adjusted.

[0017] Using the above solution: When the robot walks on flat ground, it can adopt a low-chassis mode, which allows it to walk normally while maintaining an aesthetically pleasing appearance, such as... Figure 1 As shown in the diagram. When walking on uneven ground or over obstacles, first start the drive motor 2, which drives the threaded column 3 to rotate, and finally causes the caster wheel 4 to move downwards. Since the ground height does not change, it is visually perceived that the protective shell 1 moves upwards as a whole, which is equivalent to the base chassis rising, as shown. Figure 5 The state shown.

[0018] like Figure 2 , Figure 4 and Figure 5As shown, the chassis lifting mechanism 5 includes a lifting plate 501 threaded to the outer wall of the threaded column 3. The top of the lifting plate 501 abuts against a shock-absorbing pad 502, and the top of the shock-absorbing pad 502 is fixed to the inner cavity of the protective shell 1. Multiple outer sleeves 503 are fixedly connected to the lifting plate 501 at equal intervals around its circumference. A first arc-shaped slider 504 is fixedly connected to the inner side wall of the upper end of the outer sleeve 503. The bottom of the outer sleeve 503 is fixed to the universal wheel 4, and an outer spring 505 is sleeved on the lower end of the outer sleeve 503.

[0019] Using the above scheme: When adjusting the height of the base chassis, the lifting plate 501 moves downward axially, causing the outer sleeve 503 to move downward synchronously. The first arc-shaped slider 504 located inside the outer sleeve 503 moves downward axially synchronously, at which time the outer spring 505 rebounds and stretches. The protective shell 1 moves upward as a whole, exposing the outer sleeve 503 at the bottom, and the caster wheel 4 moves away from the protective shell 1, which is equivalent to raising the chassis of the base.

[0020] like Figures 2 to 5 As shown, the elastic adaptive mechanism 6 includes a rotating sleeve 601 that is slidably sleeved in the inner cavity of the outer sleeve 503. A limiting ring 602 is rotatably connected to the top of the rotating sleeve 601, and the top of the limiting ring 602 is fixed to the protective shell 1. A spiral groove 604 is provided on the outer wall of the rotating sleeve 601. A first arc-shaped slider 504 is slidably connected in the spiral groove 604. The bottom of the rotating sleeve 601 is elastically connected to the universal wheel 4 through an outer spring 505. The inner cavity of the rotating sleeve 601 is slidably abutted against a spiral inner rod 605 through a second arc-shaped slider 606. The bottom of the spiral inner rod 605 is elastically connected to the universal wheel 4 through an inner spring 603.

[0021] Using the above scheme: regardless of whether the chassis is adjusted high or low, the outer spring 505 and the inner spring 603 are always in a compressed state, only the magnitude of their compression varies. The first arc-shaped slider 504 continuously compresses the spiral groove 604, causing the rotating sleeve 601 to rotate continuously within the limiting ring 602. Because the rotating sleeve 601 maintains its current position while the caster 4 gradually moves away from it, the outer spring 505 located between them springs back and stretches. During the rotation of the rotating sleeve 601, the second arc-shaped slider 606 located inside it also rotates synchronously, further compressing the spiral inner rod 605 and causing it to move downwards. The spiral inner rod 605 continuously approaches the caster 4, compressing the inner spring 603 between them and replacing the stress on the outer spring 505.

[0022] Working principle and usage process of this utility model: First, when the robot walks on flat ground, it can adopt a low-chassis mode, which allows it to move normally while maintaining an aesthetically pleasing appearance. Figure 1In the indicated state, the outer spring 505 is highly compressed, primarily providing cushioning, with the inner spring 603 assisting, and working in conjunction with the shock-absorbing pad 502 to separate the protective shell 1 and the lifting plate 501, preventing collision between them. When traversing uneven ground or over obstacles, the drive motor 2 is first activated, rotating the threaded column 3, which compresses the lifting plate 501 axially, simultaneously moving the surrounding outer sleeves 503 downwards, thus causing the casters 4 to move downwards as well. Since the ground height remains unchanged, this visually appears as the entire protective shell 1 moving upwards, exposing the bottom of the outer sleeves 503, equivalent to the base chassis rising. Figure 5 As shown, the inner spring 603 is compressed to a large degree at this time, so the buffering is mainly carried out by the inner spring 603, and the outer spring 505 is used as an auxiliary to ensure that the buffering force of the base is always balanced when adjusting the height of the robot chassis. When the outer lifting plate 501 moves downward axially, it drives the outer sleeve 503 to move downward synchronously. The first arc-shaped slider 504 located inside the outer sleeve 503 moves downward axially synchronously. The first arc-shaped slider 504 continuously squeezes the spiral groove 604, causing the rotating sleeve 601 to rotate continuously within the limiting ring 602. As the rotating sleeve 601 maintains its current position and rotates, the universal wheel 4 gradually moves away from the rotating sleeve 601, causing the outer spring 505 between them to spring back and stretch. During the rotation of the rotating sleeve 601, the second arc-shaped slider 606 located inside it also rotates synchronously, thereby squeezing the spiral inner rod 605 to move downward as well. The spiral inner rod 605 continuously approaches the universal wheel 4, compressing the inner spring 603 between them and replacing the stress of the outer spring 505's rebound. The dual-spring design of the outer spring 505 and the inner spring 603 ensures dynamic balance of elasticity during the adjustment process.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] 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 base for an intelligent robot, comprising a protective shell (1), wherein a threaded post (3) is rotatably connected to the middle of the protective shell (1), a drive motor (2) is fixedly connected to the top of the protective shell (1), the output end of the drive motor (2) is fixedly connected to the threaded post (3), and a plurality of universal wheels (4) are equidistantly arranged around the lower part of the protective shell (1), characterized in that, Also includes: Chassis lifting mechanism (5), the chassis lifting mechanism (5) is located inside the protective shell (1); Elastic adaptive mechanism (6), which is connected to chassis lifting mechanism (5); The chassis lifting mechanism (5) adjusts the height of the robot's chassis, and in conjunction with the elastic adaptive mechanism (6), the buffer elasticity during the robot's walking process can be dynamically adjusted.

2. The base for an intelligent robot according to claim 1, characterized in that: The chassis lifting mechanism (5) includes a lifting plate (501) threaded to the outer wall of the threaded column (3), the top of the lifting plate (501) abutting against a shock-absorbing pad (502), and the top of the shock-absorbing pad (502) being fixed to the inner cavity of the protective shell (1).

3. The base for an intelligent robot according to claim 2, characterized in that: The lifting plate (501) is fixedly connected to a plurality of outer sleeves (503) at equal intervals around the circumference, and a first arc-shaped slider (504) is fixedly connected to the inner side wall of the upper end of the outer sleeve (503).

4. The base for an intelligent robot according to claim 3, characterized in that: The bottom of the outer sleeve (503) is fixed to the universal wheel (4), and the lower end of the outer sleeve (503) is fitted with an outer spring (505).

5. The base for an intelligent robot according to claim 4, characterized in that: The elastic adaptive mechanism (6) includes a rotating sleeve (601) that is slidably sleeved in the inner cavity of the outer sleeve (503). The top of the rotating sleeve (601) is rotatably connected to a limiting ring (602), and the top of the limiting ring (602) is fixed to the protective shell (1).

6. The base for an intelligent robot according to claim 5, characterized in that: The outer wall of the rotating sleeve (601) is provided with a spiral groove (604), the first arc-shaped slider (504) is slidably connected in the spiral groove (604), and the bottom of the rotating sleeve (601) is elastically connected to the universal wheel (4) through an outer spring (505).

7. The base for an intelligent robot according to claim 6, characterized in that: The inner cavity of the rotating sleeve (601) is slidably abutted against the spiral inner rod (605) by the second arc surface slider (606), and the bottom of the spiral inner rod (605) is elastically connected to the universal wheel (4) by the inner spring (603).

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