A robot anti-collision cushion structure

Abstract

The utility model relates to robot technical field, concretely relates to a robot anti -collision buffer structure, through the one side of all bearing plate is connected between the inner wall of all side frame sliding respectively, and all bearing plate's one side all are equipped with second arc plate, fixedly connected with a plurality of arc elastic sheets between the one side of second arc plate and bearing plate, the top fixedly connected with ring plate of robot body, and the outer wall of ring plate all are fixedly connected with a plurality of elastic sheets, and all elastic sheet's one end all are fixedly connected with first arc plate, has realized the effective buffer of lateral collision, has solved the problem of short buffer stroke, weak energy absorption capacity in the prior art, has improved the anti -collision performance significantly.

Description

Technical Field

[0001] This utility model relates to the field of robotics technology, and in particular to a robot anti-collision buffer structure. Background Technology

[0002] A robotic vacuum cleaner is a smart home cleaning device that integrates automatic cleaning, path planning, and intelligent obstacle avoidance. Through built-in sensors, drive wheels, and a vacuuming system, it can autonomously clean dust, debris, and other imperfections from the floor without human intervention. It is widely used in homes, offices, and other indoor environments. During operation, it frequently comes into contact with obstacles such as walls, furniture, and chair legs; therefore, the design of its anti-collision and buffer structure directly affects the machine's operational stability, cleaning efficiency, and the lifespan of the device itself.

[0003] Utility model patent CN222737802U discloses a robotic vacuum cleaner: it includes a robot body with an installation groove; a dust collection box disposed within the installation groove for storing sucked-in dust; and a filter disposed within the box for filtering dust; wherein the filter is detachably disposed within the dust collection box. The beneficial effects of this application are: during cleaning, the robotic vacuum cleaner uses suction to suck dust from the floor into the dust collection box, thereby keeping the floor clean. The filter, disposed inside the dust collection box, filters dust particles from the sucked-in air. The filter is detachable, facilitating user use and maintenance. When the filter needs cleaning or replacement due to excessive dust accumulation, the user can easily remove it from the dust collection box for cleaning or replacement, simplifying maintenance and improving the user experience. While improving the convenience of filter maintenance, this technical solution mainly focuses on the detachable design of the internal dust removal system and does not address the impact resistance of the robot's external structure.

[0004] In actual operation, robotic vacuum cleaners inevitably collide with obstacles due to their frequent movement in complex environments such as narrow spaces, furniture edges, and corners. However, existing anti-collision buffer structures mostly use simple elastic rubber strips or fixed buffer strips, which have short buffer strokes and weak energy absorption capacity, making it difficult to effectively absorb the impact force during collisions. This leads to the loosening and damage of critical components such as internal motors, sensors, or the outer shell due to repeated impacts, affecting normal operation. This directly results in a shortened robot lifespan, increased failure rate, increased operational complexity, and difficulty in meeting the demands of modern smart homes for high reliability, long lifespan, and low maintenance costs. Therefore, to address the many shortcomings of existing technologies, we urgently need an innovative robot anti-collision buffer structure to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a robot anti-collision buffer structure, which solves the problem that existing anti-collision buffer structures mostly use simple elastic rubber strips or fixed buffer strips, which have short buffer strokes and weak energy absorption capacity, making it difficult to effectively absorb the impact force during collisions. This leads to the loosening and damage of key components such as internal motors, sensors, or shells of the robot due to repeated impacts, affecting normal operation.

[0006] To achieve the above objectives, this utility model provides a robot anti-collision buffer structure, including a robot body, and a number of side frames fixedly connected to the outer wall of the robot body, and a bearing plate elastically connected to the inner side of all the side frames. One side of each of the support plates is slidably connected to the inner wall of each of the side frames, and one side of each support plate is provided with a second arc-shaped plate. Several arc-shaped elastic plates are fixedly connected between the second arc-shaped plate and one side of the support plate. An annular plate is fixedly connected to the top of the robot body, and several elastic plates are fixedly connected to the outer wall of the annular plate. One end of each elastic plate is fixedly connected to a first arc-shaped plate. Several fixed frames are elastically connected to the outer wall of the robot body, and rollers are rotatably connected to the inner side of each fixed frame.

[0007] In this configuration, one side of each of the load-bearing plates is elastically connected to the inner wall of each of the side frames via a second compression spring.

[0008] One side of each load-bearing plate is fixedly connected to the inner wall of each side frame via dampers.

[0009] All the bearing plates are fixedly connected to sliders on both sides, and the sliders are slidably connected to the side walls of the side frame through grooves.

[0010] Each fixed frame has a telescopic rod fixedly connected to one side, and each telescopic rod is fitted with a first compression spring. One side of the fixed frame is elastically connected to the outer wall of the robot body through the first compression spring.

[0011] All the rollers are rotatably connected at both ends to the inner walls of all the fixed frames via pivots.

[0012] This utility model discloses a robot anti-collision buffer structure. By incorporating multiple sliding fit structures between side frames and a support plate on the outer wall of the robot body, combined with elastic connections, it effectively buffers lateral collisions, solving the problems of short buffer stroke and weak energy absorption capacity in existing technologies, and significantly improving anti-collision performance. The second arc-shaped plate adopts an arc design, which can adapt to collisions at different angles, reducing stress concentration. Combined with the secondary elastic deformation of the arc-shaped elastic plate, it enhances the layering and stability of the buffer, effectively preventing structural failure due to a single strong impact. The sliding connection between the support plate and the side frames ensures guidance during the buffering process, avoiding deviation or jamming, and improving structural reliability. Multiple elastic plates on the annular plate, together with the first arc-shaped plate, form a top annular buffer system, compensating for the weak top protection of traditional sweeping robots, especially when encountering low furniture or the edges of steps, effectively preventing damage to sensors or the outer shell. The rotating rollers within the fixed frame achieve a rolling transition during collisions, preventing... Sliding friction is converted into rolling friction, significantly reducing impact force and noise, while also minimizing the risk of scratching furniture surfaces. The elastic connection of the fixed frame allows it to retract as a whole under pressure, further extending the buffer distance and improving energy absorption. The overall structure adopts a modular design, with each buffer component working independently yet collaboratively, covering multiple collision-prone areas around the robot's circumference and top, forming a comprehensive, multi-layered anti-collision protection system. This effectively reduces the risk of internal motors and sensors becoming loose or the outer casing cracking due to frequent collisions, extending the equipment's lifespan and reducing failure rates and maintenance costs. Compared to traditional single rubber strip buffer structures, this solution offers a longer buffer stroke, more sensitive response, and more comprehensive protection. It achieves efficient physical buffering without a complex electronic control system, boasting advantages such as simple structure, controllable cost, and convenient maintenance. It meets the practical application requirements of modern smart homes for high reliability, long lifespan, and low maintenance of robotic vacuum cleaners, enhancing user experience and product market competitiveness. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a front view schematic diagram of an embodiment of this utility model.

[0015] Figure 2 This is a bottom view of an embodiment of the present invention.

[0016] Figure 3 This is a side frame schematic diagram of an embodiment of the present utility model.

[0017] Figure 4 This is a schematic diagram of the fixed frame according to an embodiment of the present utility model.

[0018] Figure 5 This is a schematic diagram of the elastic plate according to an embodiment of the present invention.

[0019] In the diagram: 1. Robot body; 2. Ring plate; 3. Elastic plate; 4. First arc plate; 5. Side frame; 6. Bearing plate; 7. Second arc plate; 8. Arc elastic plate; 9. Fixed frame; 10. Roller; 11. Telescopic rod; 12. First compression spring; 13. Slider; 14. Slide groove; 15. Second compression spring; 16. Damper. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figure 1-5 A robot anti-collision buffer structure includes a robot body 1, and a plurality of side frames 5 are fixedly connected to the outer wall of the robot body 1, and a bearing plate 6 is elastically connected to the inner side of all the side frames 5. One side of each of the support plates 6 is slidably connected to the inner wall of each of the side frames 5, and one side of each of the support plates 6 is provided with a second arc plate 7. Several arc elastic plates 8 are fixedly connected between the second arc plate 7 and one side of the support plate 6. An annular plate 2 is fixedly connected to the top of the robot body 1, and several elastic plates 3 are fixedly connected to the outer wall of the annular plate 2. One end of each elastic plate 3 is fixedly connected with a first arc plate 4. Several fixed frames 9 are elastically connected to the outer wall of the robot body 1, and rollers 10 are rotatably connected to the inner side of each fixed frame 9.

[0022] First, the robot body 1 is activated and placed in the area to be cleaned. Several side frames 5 are fixedly connected to the outer wall of the robot body 1. The inner sides of all side frames 5 are elastically connected to the support plate 6 through elastic elements. One side of each support plate 6 is slidably connected to the inner wall of the side frame 5. When the robot comes into contact with a wall, furniture leg, or other obstacle during its movement, the second arc-shaped plate 7 located on one side of the support plate 6 first contacts the obstacle. After being squeezed by external force, the second arc-shaped plate 7 drives the support plate 6 to move inward toward the side frame 5, compressing the elastic elements. At the same time, the support plate 6 slides along the inner wall of the side frame 5 to achieve linear buffering. Several arc-shaped elastic plates 8 are also fixedly connected between the second arc-shaped plate 7 and the support plate 6. The arc-shaped elastic plates 8 undergo elastic deformation when compressed, further absorbing and dispersing impact energy and enhancing the overall buffering effect. Meanwhile, a ring-shaped... Plate 2, the outer wall of the annular plate 2 is uniformly distributed with several elastic plates 3, and the end of each elastic plate 3 is fixedly connected to a first arc-shaped plate 4. When the robot touches the obstacle in a vertical or oblique collision, the first arc-shaped plate 4 makes priority contact with the obstacle. The bending deformation of the elastic plate 3 achieves radial buffering, protecting the top of the robot and the sensor area. In addition, several fixed frames 9 are elastically connected to the outer wall of the robot body 1. Rollers 10 are rotatably connected to the inner side of each fixed frame 9. When the robot moves sideways to the obstacle, the rollers 10 first contact the object surface and roll with it, transforming the original rigid collision into rolling contact, reducing frictional resistance and impact force. At the same time, the elastic connection structure of the fixed frame 9 itself allows the rollers 10 to retract inward when compressed, providing additional buffer stroke. The entire anti-collision system, with the cooperation of multiple points, effectively resolves the collision stress from different directions, ensuring the smooth operation of the robot.

[0023] Furthermore, one side of each of the bearing plates 6 is elastically connected to the inner wall of each of the side frames 5 via a second compression spring 15. When the second arc-shaped plate 7 is subjected to an external impact force, the bearing plate 6 moves inward toward the side frame 5 and compresses the second compression spring 15. The second compression spring 15 generates a reverse elastic force, absorbs the impact energy, and pushes the bearing plate 6 to reset after the external force disappears. This achieves the effect of enhancing the buffer energy absorption capacity and realizing automatic return, effectively preventing continuous collision damage caused by insufficient elasticity, and improving the response speed and durability of the buffer structure.

[0024] Furthermore, one side of each of the support plates 6 is fixedly connected to the inner wall of each of the side frames 5 via dampers 16. When the support plate 6 is displaced under the impact, the damper 16 generates damping force through the internal hydraulic or pneumatic structure to suppress the rapid rebound and vibration of the support plate 6, making the buffering process smoother and avoiding secondary impact caused by the excessively rapid rebound of the elastic element. This achieves the effect of improving buffering stability and controllability, and further protects the precision components inside the robot from vibration.

[0025] Furthermore, sliders 13 are fixedly connected to both sides of all the bearing plates 6, and the sliders 13 are slidably connected to the side wall of the side frame 5 through the slide groove 14. When the bearing plate 6 is pressed and moves, the sliders 13 slide synchronously along the slide groove 14, providing precise guidance for the linear movement of the bearing plate 6, preventing it from deviating, jamming or twisting during the buffering process, thereby improving the smoothness of sliding and the reliability of the structure, ensuring that the buffering force is evenly transmitted and extending the service life of the component.

[0026] Furthermore, each of the fixed frames 9 is fixedly connected to one side with a telescopic rod 11, and each telescopic rod 11 is fitted with a first compression spring 12. One side of the fixed frame 9 is elastically connected to the outer wall of the robot body 1 through the first compression spring 12. When the roller 10 contacts an obstacle and is compressed, the fixed frame 9 retracts towards the robot body 1 through the telescopic rod 11, while compressing the first compression spring 12. The first compression spring 12 absorbs the impact energy and pushes the fixed frame 9 to reset after the external force is released. The telescopic rod 11 restricts the direction of movement and prevents deviation, thereby enhancing the buffer stroke and structural stability of the roller assembly and achieving dual protection of rolling and elastic buffering.

[0027] Furthermore, both ends of all the rollers 10 are rotatably connected to the inner walls of all the fixed frames 9 via pivots. The rollers 10 can rotate freely on the pivots. When the robot moves sideways towards the furniture or wall, the rollers 10 first contact the obstacle and roll with its surface, converting rigid collisions into rolling contact, reducing frictional resistance and impact force, while avoiding scratching the furniture surface. The pivot connection structure is simple and reliable, ensuring the rotational flexibility of the rollers 10 in long-term use, achieving the effects of reducing collision noise, improving smooth operation, and protecting the surrounding environment.

[0028] In summary: When using a robotic vacuum cleaner with a collision avoidance and buffer structure for autonomous cleaning, the robot body 1 is first started and placed in the area to be cleaned. Several side frames 5 are fixedly connected to the outer wall of the robot body 1. The inner sides of all side frames 5 are elastically connected to a support plate 6 via a second compression spring 15 and a damper 16. One side of each support plate 6 is slidably connected to the inner wall of the side frame 5, and slides within the grooves 14 of the side frame 5 via sliders 13 fixed on both sides. When the robot comes into contact with a wall, furniture leg, or other obstacle during its movement, the support plate 6... The second arc-shaped plate 7 on one side of the carrier plate 6 first contacts the obstacle. After being squeezed by external force, the second arc-shaped plate 7 drives the carrier plate 6 to move inward toward the side frame 5, compressing the second compression spring 15, generating a reverse elastic force to absorb the impact energy, and pushing the carrier plate 6 back to its original position after the external force disappears. At the same time, the damper 16 suppresses the rapid rebound and vibration of the carrier plate 6, making the buffering process smoother. Several arc-shaped elastic plates 8 are also fixedly connected between the second arc-shaped plate 7 and the carrier plate 6. The arc-shaped elastic plates 8 undergo elastic deformation when compressed, further absorbing and dispersing the impact energy, enhancing the overall buffering effect. At the same time, a ring plate 2 is fixedly connected to the top of the robot body 1. Several elastic plates 3 are evenly distributed on the outer wall of the ring plate 2. A first arc plate 4 is fixedly connected to the end of each elastic plate 3. When the robot touches the obstacle in a vertical or oblique collision, the first arc plate 4 makes priority contact with the obstacle. Radial buffering is achieved through the bending deformation of the elastic plate 3, protecting the top of the robot and the sensor area. In addition, several fixed frames 9 are elastically connected to the outer wall of the robot body 1. A roller 10 is rotatably connected to the inner side of each fixed frame 9. The two ends of the roller 10 are respectively connected to the fixed frame through a rotating shaft. The inner walls of the fixed frame 9 are rotatably connected. When the robot moves sideways towards an obstacle, the roller 10 first contacts the surface of the object and rolls with it, transforming the original rigid collision into rolling contact, reducing frictional resistance and impact force. At the same time, the elastic connection structure of the fixed frame 9 itself allows the roller 10 to retract towards the robot body 1 through the telescopic rod 11 when under pressure. The first compression spring 12 sleeved on the telescopic rod 11 absorbs the impact energy and pushes the fixed frame 9 to reset after the external force is released. The entire anti-collision system effectively resolves the collision stress from different directions under the coordinated action of multiple points, ensuring the smooth operation of the robot.By setting multiple side frames 5 on the outer wall of the robot body 1 and slidingly engaging with the support plate 6, and combining the elastic connection of the second compression spring 15 and the damper 16, effective buffering of lateral collisions is achieved, solving the problems of short buffer stroke and weak energy absorption capacity in the prior art, and significantly improving the anti-collision performance. The second arc plate 7 adopts an arc design, which can adapt to collisions at different angles, reduce stress concentration, and, together with the secondary elastic deformation of the arc elastic plate 8, enhances the layering and stability of the buffer, effectively preventing structural failure due to a single strong impact. The cooperation between the slider 13 and the slide groove 14 ensures the guidance of the support plate 6 during the buffering process, avoids deviation or jamming, and improves structural reliability. The multiple elastic plates 3 set on the annular plate 2 and the first arc plate 4 form a top annular buffer system, which makes up for the weak top protection of traditional sweeping robots, especially when encountering low furniture or the edge of steps, and can effectively prevent damage to sensors or the shell. The roller 10 rotatably connected inside the fixed frame 9 realizes the rolling transition during collision, reducing sliding friction. The rubbing action is transformed into rolling friction, significantly reducing impact force and noise, while also minimizing the risk of scratching furniture surfaces. The combination of the telescopic rod 11 and the first compression spring 12 not only increases the buffer stroke of the roller assembly but also provides additional elastic support, making the entire buffer mechanism more complete. The overall structure adopts a modular design, with each buffer component working independently yet collaboratively, covering multiple collision-prone areas around the robot's circumference and top, forming a comprehensive, multi-layered anti-collision protection system. This effectively reduces the risk of internal motors and sensors becoming loose or the outer casing cracking due to frequent collisions, extending the equipment's lifespan and reducing failure rates and maintenance costs. Compared to the traditional single rubber strip buffer structure, this solution offers a longer buffer stroke, more sensitive response, and more comprehensive protection. It achieves efficient physical buffering without a complex electronic control system, boasting advantages such as simple structure, controllable cost, and convenient maintenance. It meets the practical application requirements of modern smart homes for high reliability, long lifespan, and low maintenance of robotic vacuum cleaners, enhancing user experience and product market competitiveness.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A robot anti-collision buffer structure, comprising a robot body, characterized in that, It also includes several side frames fixedly connected to the outer wall of the robot body, and all the side frames are elastically connected to a bearing plate on their inner side; One side of each of the support plates is slidably connected to the inner wall of each of the side frames, and one side of each support plate is provided with a second arc-shaped plate. Several arc-shaped elastic plates are fixedly connected between the second arc-shaped plate and one side of the support plate. An annular plate is fixedly connected to the top of the robot body, and several elastic plates are fixedly connected to the outer wall of the annular plate. One end of each elastic plate is fixedly connected to a first arc-shaped plate. Several fixed frames are elastically connected to the outer wall of the robot body, and rollers are rotatably connected to the inner side of each fixed frame.

2. The robot anti-collision buffer structure as described in claim 1, characterized in that, One side of each of the aforementioned support plates is elastically connected to the inner wall of each of the side frames via a second compression spring.

3. The robot anti-collision buffer structure as described in claim 1, characterized in that, One side of each of the aforementioned load-bearing plates is fixedly connected to the inner wall of each of the side frames via dampers.

4. The robot anti-collision buffer structure as described in claim 1, characterized in that, All of the aforementioned support plates have sliders fixedly connected to both sides, and the sliders are slidably connected to the side walls of the side frame through grooves.

5. The robot anti-collision buffer structure as described in claim 1, characterized in that, One side of each of the fixed frames is fixedly connected to a telescopic rod, and a first compression spring is fitted on each telescopic rod. One side of the fixed frame is elastically connected to the outer wall of the robot body through the first compression spring.

6. The robot anti-collision buffer structure as described in claim 1, characterized in that, Both ends of all the rollers are rotatably connected to the inner walls of all the fixed frames via axles.

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