An adjustable robot chassis

Abstract

The utility model discloses an adjustable robot chassis relates to robot chassis technical field, including chassis main part, visual sensor, steering column and wheel, visual sensor installs the edge four sides of chassis main part, and the bottom four sides of chassis main part all movably install steering column, the one side of steering column is installed for the wheel of equipment movement, the inside bottom end top of chassis main part is installed with shock pad. The utility model discloses when adjustable robot chassis is in moving, the inside installation of chassis main part has height compensator, and the size change of equipment or pipeline in height direction caused by temperature change, mechanical vibration or installation error etc. factor, thereby avoid the damage of component to bear additional stress, reach the purpose of protection equipment, reduce the probability of equipment damage, and shock pad sets up at the bottom of chassis main part, can reduce the collision of chassis main part in the activity process and object.

Description

Technical Field

[0001] This utility model relates to the field of robot chassis technology, specifically an adjustable robot chassis. Background Technology

[0002] The robot chassis is the foundation for the robot's movement and load-bearing capacity. Its core function is to enable the robot's autonomous or controlled movement, such as forward, backward, turning, and speed adjustment, ensuring its flexible operation in various environments. Simultaneously, it supports the robot's core components, such as controllers, sensors, and power systems, providing a stable mounting platform for these components. Furthermore, the chassis must be adaptable to the working environment, possessing certain obstacle-crossing, anti-slip, and anti-interference capabilities to ensure the robot's stability and safety during movement, serving as a prerequisite for the robot to complete various tasks.

[0003] The existing Chinese utility model patent with publication number CN219257541U discloses a center-of-gravity adjustable robot chassis. This chassis includes a fixed plate, a cargo box fixedly connected to the top of the fixed plate, support legs fixedly connected to the bottom of the fixed plate, and casters fixedly connected to the bottom of the support legs. An adjustment mechanism is provided at the bottom of the fixed plate, and a disassembly mechanism is included within the adjustment mechanism. With this center-of-gravity adjustable robot chassis, the operator only needs to start a dual-axis motor to drive the worm gear shaft to rotate in both forward and reverse directions, which moves the cargo box left and right at the bottom of the fixed plate. This allows the counterweight block inside the cargo box to move along with the cargo box, thus adjusting the center of gravity of the chassis. The operation is simple and convenient for operators. The movement range of the counterweight block is limited to the bottom of the fixed plate, preventing the chassis from tipping over due to excessive center-of-gravity shift during displacement.

[0004] Currently, the adjustable robot chassis in use still have the following problems: Most existing robot chassis have a fixed height structure. When moving in complex scenes, they are easily trapped by ground protrusions, depressions or low obstacles. They cannot adapt to obstacles by adjusting their own height, resulting in low passage efficiency and task interruption. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable robot chassis to solve the problem mentioned in the background art that robots cannot autonomously adjust their height according to the height in front when encountering obstacles, resulting in difficulty in movement.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This utility model provides an adjustable robot chassis, including a chassis body, a vision sensor, a steering column, and wheels. The vision sensor is installed on the four sides of the edge of the chassis body, and a steering column is movably installed on the four sides of the bottom of the chassis body. A wheel for moving the device is installed on one side of the steering column. A shock-absorbing pad is installed on the upper part of the bottom of the chassis body, and a height compensator is set in the middle of the chassis body. A bracket is fixedly installed on the edge of the height compensator. The steering column includes a shaft that is laterally inserted on one side of the bottom, and a shock-absorbing spring is provided in the middle of the steering column. The bottom of the shock-absorbing spring is connected to the insert rod. A collar is movably sleeved near the bottom end of the shock-absorbing spring. A bottom block extends from one side of the collar, and the surface of the bottom block is connected to the bottom of the lead screw. An insert block is provided on the opposite side of the bottom block.

[0007] Preferably, the bottom of the chassis body is fitted with a shell, and the surface of the shell is in contact with the bottom of the shock-absorbing pad, and the bracket is located between the surface of the shock-absorbing pad and the inner top of the chassis body.

[0008] Preferably, a mounting block is installed at the bottom of the housing, and the top of the steering column is installed inside the mounting block.

[0009] Preferably, one side of the insert block is inserted into the interior of the telescopic plate, and the top of the telescopic plate is connected to the top side of the steering column, and the top of the lead screw is connected to the motor.

[0010] Preferably, one end of the axle is located inside the center of the wheel, and the steering column is movably connected to the wheel via the axle.

[0011] Preferably, the shock-absorbing spring is connected between the steering columns, and the lead screw passes through the top of the steering column.

[0012] Preferably, a control panel is fixedly installed on the surface of the chassis body, and a buckle device is installed on the four sides of the control panel.

[0013] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. When the adjustable robot chassis is moving, a height compensator is installed inside the chassis body. The height compensator prevents the equipment or pipeline from being damaged due to changes in the height direction caused by factors such as temperature changes, mechanical vibration or installation errors, thereby protecting the equipment and reducing the probability of equipment damage. In addition, the shock-absorbing pad is set at the bottom of the chassis body, which can reduce the collision between the chassis body and objects during the movement. 2. When the adjustable robot chassis is moving, the steering column rotates through the lead screw, causing the base block to move the collar up and down. The change in the height of the collar adjusts the distance between the chassis body and the wheels, which can protect the chassis components and reduce the chance of damage to the chassis body from ground debris, protrusions and other objects. At the same time, it increases obstacle crossing performance, allowing the robot to cross obstacles such as protrusions and avoid the chassis getting stuck. Attached Figure Description

[0014] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0015] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of the chassis body of this utility model; Figure 3 This is a schematic diagram of the steering column structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the chassis body of this utility model; In the picture: 1. Chassis main body; 11. Shell; 12. Mounting block; 13. Shock absorber; 14. Height compensator; 15. Bracket; 2. Control panel; 3. Vision sensor; 4. Steering column; 41. Axle; 42. Shock absorber spring; 43. Telescopic plate; 44. Insert block; 45. Insert rod; 46. Collar; 47. Base block; 48. Lead screw; 5. Wheel. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] Please see Figures 1-4 An adjustable robot chassis includes a chassis body 1, a vision sensor 3, a steering column 4 and wheels 5. A shock-absorbing pad 13 is installed on the upper part of the bottom of the chassis body 1, and a height compensator 14 is provided in the middle of the chassis body 1. A bracket 15 is fixedly installed on the edge of the height compensator 14.

[0019] In this embodiment, a housing 11 is installed at the bottom of the chassis body 1, and the surface of the housing 11 is in contact with the bottom of the shock absorber 13. The bracket 15 is located between the surface of the shock absorber 13 and the top of the interior of the chassis body 1. A mounting block 12 is installed at the bottom of the housing 11, and the top of the steering column 4 is installed inside the mounting block 12.

[0020] The adjustable robot chassis of this utility model has a shock-absorbing pad 13 located at the bottom of the chassis body 1, which can buffer the impact of the ground, reduce the direct impact force of ground protrusions, steps, etc. on the chassis when the robot is moving, reduce the feeling of bumps, protect the chassis structure, and block the transmission of ground vibration to the chassis and internal precision components (such as sensors and controllers), so as to avoid vibration affecting the accuracy and life of the equipment. The height compensator 14 absorbs displacement and effectively reduces the additional stress, bending moment and thrust between components, ensuring the stability and service life of the entire system and making the entire equipment operate safely.

[0021] For details, please refer to the following: Figure 1 As shown, the vision sensor 3 is installed on the four sides of the edge of the chassis body 1. The control panel 2 is fixedly installed on the surface of the chassis body 1, and the control panel 2 is equipped with a buckle device on the four sides. The steering column 4 is movably installed on the four sides of the bottom of the chassis body 1, and a wheel 5 for moving the equipment is installed on one side of the steering column 4.

[0022] For details, please refer to the following: Figure 3 As shown, the steering column 4 includes a shaft 41 that is laterally inserted on one side of the bottom, and a shock-absorbing spring 42 is provided in the middle of the steering column 4. The bottom of the shock-absorbing spring 42 is connected to the insert rod 45. A collar 46 is movably sleeved near the bottom end of the shock-absorbing spring 42. A bottom block 47 extends from one side of the collar 46, and the surface of the bottom block 47 is connected to the bottom of the lead screw 48. An insert block 44 is provided on the opposite side of the bottom block 47.

[0023] In this embodiment, one side of the insert block 44 is inserted into the interior of the telescopic plate 43, and the top of the telescopic plate 43 is connected to the top side of the steering column 4. The top of the lead screw 48 is connected to the motor, one end of the shaft 41 is located in the middle of the interior of the wheel 5, and the steering column 4 is movably connected to the wheel 5 through the shaft 41. The shock absorber spring 42 is connected between the steering columns 4, and the lead screw 48 is inserted into the top of the steering column 4.

[0024] The adjustable robot chassis of this utility model has a steering column 4 connected to the bottom of the chassis body 1, and then connected to the wheel 5 through the axle 41. The wheel 5 drives the entire robot to move flexibly. At the same time, the lead screw 48 causes the collar 46 on one side of the base block 47 to move up and down through the rotation of the motor. The collar 46 can adjust the height of the middle connecting part of the steering column 4, so that the height between the chassis body 1 and the wheel 5 changes, adjusting the distance between the chassis body 1 and the ground, so that the chassis body 1 can smoothly cross obstacles and ensure smooth passage.

[0025] Working principle: The chassis body 1 is installed at the bottom of the robot for overall support. The entire chassis body 1 moves flexibly by means of wheels 5. During movement, the vision sensor 3 captures images of the environment in front, and combines image recognition algorithms to analyze the outlines and positions of objects in the images, and judges and analyzes obstacles. If the chassis body 1 When the distance between the bottom of the robot and the obstacle is small and the robot is obstructed, the motor connected above the lead screw 48 causes it to rotate. The rotation of the lead screw 48 causes the bottom block 47 and the collar 46 to rise and fall together. There are two sets of collars 46. When the lower collar 46 rises, it causes the upper collar 46 to move upward at the same time. The upper collar 46 drives the side block 44 to move, causing the telescopic plate 43 to adjust its height. This adjusts the height of the entire steering column 4, changes the distance between the chassis body 1 and the wheels 5, and adjusts the distance between the chassis body 1 and the ground. This ensures that the robot can stably pass through the obstacle section. During the robot's movement, the shock-absorbing pad 13 protects the bottom of the chassis body 1, reduces the shaking of the body caused by vibration and shock, and suppresses the transmission of vibration, thus increasing the stability of the robot during movement. Finally, the height compensator 14 inside the chassis body 1 can flexibly extend or deflect to offset the displacement caused by thermal expansion and contraction, load changes, etc., so as to avoid damage to the components due to additional stress and ensure the stable operation of the entire robot equipment.

[0026] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An adjustable robot chassis, comprising a chassis body (1), a vision sensor (3), a steering column (4), and wheels (5), characterized in that: The vision sensor (3) is installed on the four sides of the edge of the chassis body (1), and a steering column (4) is movably installed on the four sides of the bottom of the chassis body (1). A wheel (5) for moving the equipment is installed on one side of the steering column (4). A shock-absorbing pad (13) is installed above the bottom of the chassis body (1), and a height compensator (14) is provided in the middle of the chassis body (1). A bracket (15) is fixedly installed on the edge of the height compensator (14). The steering column (4) includes a shaft (41) that is transversely inserted on one side of the bottom, and a shock-absorbing spring (42) is provided in the middle of the steering column (4). The bottom of the shock-absorbing spring (42) is connected to the insert rod (45). A collar (46) is movably sleeved near the bottom end of the shock-absorbing spring (42). A bottom block (47) extends from one side of the collar (46), and the surface of the bottom block (47) is connected to the bottom of the lead screw (48). An insert block (44) is provided on the opposite side of the bottom block (47).

2. The adjustable robot chassis according to claim 1, characterized in that: The bottom of the chassis body (1) is fitted with a shell (11), and the surface of the shell (11) is in contact with the bottom of the shock absorber (13). The bracket (15) is located between the surface of the shock absorber (13) and the top of the interior of the chassis body (1).

3. An adjustable robot chassis according to claim 2, characterized in that: The bottom of the outer casing (11) is fitted with a mounting block (12), and the top of the steering column (4) is fitted inside the mounting block (12).

4. An adjustable robot chassis according to claim 1, characterized in that: One side of the insert (44) is inserted into the interior of the telescopic plate (43), and the top of the telescopic plate (43) is connected to the top side of the steering column (4), and the top of the lead screw (48) is connected to the motor.

5. An adjustable robot chassis according to claim 1, characterized in that: One end of the axle (41) is located in the middle of the inside of the wheel (5), and the steering column (4) is movably connected to the wheel (5) through the axle (41).

6. An adjustable robot chassis according to claim 1, characterized in that: The shock-absorbing spring (42) is connected between the steering columns (4), and the lead screw (48) passes through the top of the steering column (4).

7. An adjustable robot chassis according to claim 1, characterized in that: The control panel (2) is fixedly installed on the surface of the chassis body (1), and the control panel (2) is equipped with buckle devices on all four sides.

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