Moving mechanism for detection robot

By introducing a buffer structure consisting of guard plates, pressure springs, piston rods, and rubber plugs into the moving mechanism of the inspection robot, as well as the design of resistance wheels and threaded rods, the impact force problem of the inspection robot during collisions was solved, achieving stable operation and extended lifespan of the equipment.

CN223835542UActive Publication Date: 2026-01-272ND ENG CO LTD OF CHINA RAILWAY 12TH BUREAU GRP +2
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Patent Information

Application Number
CN202520624588.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-01-27
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing mobile mechanisms for inspection robots are unable to absorb and disperse impact forces during collisions, leading to easy damage to the vehicle structure and internal components, shortening the equipment's lifespan and increasing maintenance frequency.

Method used

The system employs protective devices and auxiliary components, including a buffer structure consisting of guard plates, pressure springs, piston rods, and piston plugs, as well as a design for a resistance wheel and threaded rod. Through multiple buffering mechanisms, it absorbs collision energy and increases friction, thereby reducing equipment damage and maintenance costs.

Benefits of technology

It effectively buffers impact forces, reduces equipment damage, extends service life, and ensures stable operation of equipment in complex environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of detection robots, in particular to a moving mechanism for a detection robot, which comprises a bottom plate and a protective device, round wheels are rotatably connected to two sides of the bottom plate, the protective device is arranged at the front end of the bottom plate and comprises a pipe body, the pipe body is fixedly connected with the bottom plate, and a leather plug is slidably connected to the inner wall of the pipe body. When the bottom plate collides with other objects, a protection structure composed of the protection plate, the pressure spring, the piston rod, the rubber plug and the like can effectively buffer impact force, the pressure spring is compressed to generate elastic force, the rubber plug is fixedly connected with the piston rod, and the rubber plug is fixedly connected with the piston rod. The rubber plug moves in the pipe body to compress air, and the multiple buffering mechanism can reduce damage of collision to the bottom plate and connecting parts, reduce damage and maintenance cost of equipment caused by collision, prolong the service life of the equipment and guarantee normal operation of the equipment in a complex environment.
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Description

Technical Field

[0001] This utility model relates to the field of inspection robot technology, and in particular to a mobile mechanism for inspection robots. Background Technology

[0002] The mobile mechanism of an inspection robot is a key component that ensures the robot's efficient operation. It typically adopts a wheeled structure design, which offers high speed and flexibility, is suitable for flat surfaces, and ensures stable operation of the robot in various environments. This helps the robot successfully complete its inspection tasks and provides reliable support for fields such as industrial production and safety inspection.

[0003] Existing technologies include, for example, the utility model with publication number CN219339597U. This utility model relates to the field of robot mobile mechanisms, specifically a mobile mechanism for a concrete inspection robot, comprising: a mobile mechanism including multiple connecting units; an auxiliary mechanism fixed to both sides of the bottom of the mobile mechanism; a cleaning mechanism fixed to the middle position of the bottom of the mobile mechanism; and a detection fixing frame, which serves as a support platform for the mobile mechanism. In this utility model, the auxiliary mechanism and the cleaning mechanism can clean the road surface before inspection, enabling the inspection mechanism to accurately inspect the road surface. The extension plate can be extended by stretching the extension plate, thereby enabling the entire device to be lifted by the side slots and auxiliary obstacle avoidance rollers after the extension plate is stretched, thus enabling the mobile mechanism to be lifted for obstacle avoidance.

[0004] However, most existing mobile mechanisms are unable to absorb and disperse the impact force when a collision occurs, causing the vehicle structure and internal components to bear great stress. This makes the vehicle shell easily deformed and cracked, and the internal precision instruments and circuits are also easily damaged, thus shortening the overall service life of the inspection robot and increasing the possibility of premature scrapping of the equipment due to frequent maintenance and replacement of parts. Utility Model Content

[0005] The purpose of this invention is to address the problem that most existing mobile mechanisms are unable to absorb and disperse impact forces during collisions, causing the vehicle body structure and internal components to bear significant stress. This results in the vehicle body shell being prone to deformation and cracking, and internal precision instruments and circuits being easily damaged, thereby shortening the overall service life of the inspection robot and increasing the possibility of premature equipment failure due to frequent maintenance and component replacement. Therefore, this invention proposes a mobile mechanism for inspection robots.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a mobile mechanism for a detection robot, comprising a base plate and a protective device. Wheels are rotatably connected to both sides of the base plate. The protective device is located at the front end of the base plate and includes a tube body fixedly connected to the base plate. A rubber stopper is slidably connected to the inner wall of the tube body. A piston rod is fixedly connected to the front end of the rubber stopper. A fixing rod is fixedly connected to the side of the piston rod away from the rubber stopper, passing through the tube body. A protective plate is fixedly connected to the side of the fixing rod away from the piston rod. The protective plate is arc-shaped. By setting up the protective device, when the base plate collides with other objects, the protective structure composed of the protective plate, pressure spring, piston rod, and rubber stopper can effectively buffer the impact force. The pressure spring compresses to generate elastic force, and the rubber stopper moves within the tube body to compress air. This multi-buffering mechanism can reduce the damage to the base plate and connecting components caused by collisions, reduce equipment damage and maintenance costs caused by collisions, extend the service life of the equipment, and ensure the normal operation of the equipment in complex environments.

[0007] Preferably, a rubber ring is fitted at the sliding joint between the piston rod and the tube body. There are two piston rods, which are symmetrically arranged. By setting the rubber ring, the rubber ring can be installed at the contact point between the edge of the rubber stopper and the inner wall of the tube body to play a sealing role and prevent air leakage from the tube body.

[0008] Preferably, a pressure spring is fitted on the surface of the piston rod. The two ends of the pressure spring are fixedly connected to the fixed rod and the rubber ring, respectively. By setting the pressure spring, when the base plate collides with other objects, the guard plate will be forced to move backward and compress the pressure spring. During the compression process, the pressure spring absorbs the energy generated by the collision through its own elastic deformation, and converts the impact force into the elastic potential energy of the spring.

[0009] Preferably, an auxiliary component is provided on one side of the base plate. The auxiliary component includes a crossbar, which is fixedly connected to the base plate. A fixing plate is fixedly connected to the surface of the crossbar. A hole is formed on the surface of the fixing plate. A protrusion is slidably connected to the inner wall of the hole. By providing the auxiliary component, when the rear wheel of the base plate slips, the threaded rod is rotated, and the threaded rod presses down on the protrusion. The protrusion drives the resistance wheel to abut against the ground. By increasing the contact area between the wheel and the ground, the friction is increased, thereby effectively reducing the slippage. This allows the moving mechanism of the inspection robot to resume stable movement in the slipping state, ensuring that the robot can still move normally under various complex ground conditions.

[0010] Preferably, the lower surface of the protrusion is rotatably connected to a resistance wheel, and the upper surface of the crossbar is threaded.

[0011] Preferably, the upper surface of the crossbar is threaded with a threaded rod, and the threaded rod is rotatably connected to the protrusion on the side near the protrusion.

[0012] Preferably, the crossbar is arranged in an "F" shape, and an anti-slip knob is fixedly connected to the upper surface of the threaded rod. By setting the threaded rod, when the rear wheel of the base plate slips, the threaded rod is rotated to press the protrusion downward, thereby driving the resistance wheel to abut against the ground. This can increase the contact area between the wheel and the ground, increase the friction, and thus effectively reduce the slippage phenomenon and ensure the stable operation of the mobile mechanism of the inspection robot.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, by setting up a protective device and auxiliary components, after the base plate collides with other objects, the protective plate moves backward under force and compresses the pressure spring. The pressure spring generates elastic force, and at the same time, the protective plate squeezes the piston rod. The piston rod drives the piston plug to move backward. The tube contains a large amount of air, which buffers the impact force through the cooperation of the piston and the pressure spring. When the rear wheel of the base plate slips, the threaded rod is rotated, and the threaded rod squeezes the protrusion downward. The protrusion drives the resistance wheel to abut against the ground. At this time, the contact area between the wheel and the ground is increased, which helps to reduce the slippage. Rotating the threaded rod in the opposite direction makes it easier to drive the resistance wheel off the ground, which facilitates the passage of obstacles.

[0015] By incorporating this invention, when the base plate collides with other objects, the protective structure composed of the guard plate, pressure spring, piston rod, and piston plug can effectively buffer the impact force. The pressure spring compresses to generate elastic force, and the piston plug moves within the tube to compress air. This multi-buffering mechanism can reduce the damage to the base plate and connecting components caused by the collision, reduce equipment damage and maintenance costs caused by the collision, extend the service life of the equipment, and ensure the normal operation of the equipment in complex environments. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a mobile mechanism for a detection robot is provided for this utility model;

[0017] Figure 2 This utility model provides a side view structural diagram of a mobile mechanism for a detection robot;

[0018] Figure 3 This utility model provides a schematic diagram of the protective device structure for a mobile mechanism of a detection robot;

[0019] Figure 4 This utility model provides a schematic diagram of the auxiliary component structure for a mobile mechanism of a detection robot;

[0020] Figure 5This utility model proposes a mobile mechanism for a detection robot. Figure 4 A magnified structural diagram at point A.

[0021] Legend: 1. Base plate; 2. Wheel; 3. Protective device; 31. Guard plate; 32. Fixing rod; 33. Tube body; 34. Plug; 35. Rubber ring; 36. Pressure spring; 37. Piston rod; 4. Auxiliary components; 41. Crossbar; 42. Fixing plate; 43. Resistance wheel; 44. Protrusion; 45. Threaded rod. Detailed Implementation

[0022] Please see Figures 1-5 This utility model provides a technical solution: a mobile mechanism for a detection robot, including a base plate 1 and a protective device 3. Wheels 2 are rotatably connected to both sides of the base plate 1, and the protective device 3 is set at the front end of the base plate 1.

[0023] In this implementation scheme: the protective device 3 includes a tube 33, which is fixedly connected to the base plate 1. A rubber plug 34 is slidably connected to the inner wall of the tube 33. A piston rod 37 is fixedly connected to the front end of the rubber plug 34. A fixing rod 32 is fixedly connected to the side of the piston rod 37 away from the rubber plug 34 through the tube 33. A guard plate 31 is fixedly connected to the side of the fixing rod 32 away from the piston rod 37. The guard plate 31 is arc-shaped. By setting the protective device 3, when the base plate 1 collides with other objects, the protective structure composed of the guard plate 31, the pressure spring 36, the piston rod 37, and the rubber plug 34 can effectively buffer the impact force. The pressure spring 36 is compressed to generate elastic force, and the rubber plug 34 moves compressed air in the tube 33. This multiple buffering mechanism can reduce the damage to the base plate 1 and connecting parts caused by the collision, reduce the damage and maintenance costs caused by the collision, extend the service life of the equipment, and ensure the normal operation of the equipment in complex environments.

[0024] Specifically, a rubber ring 35 is fitted at the sliding point between the piston rod 37 and the tube body 33. There are two piston rods 37, which are symmetrically arranged. By setting the rubber ring 35, the rubber ring 35 can be installed at the contact point between the edge of the plug 34 and the inner wall of the tube body 33 to buffer the impact force in the part where the tube body 33 and the plug 34 cooperate. This serves as a seal to prevent air leakage from the tube body 33.

[0025] Specifically, a pressure spring 36 is fitted on the surface of the piston rod 37. The two ends of the pressure spring 36 are fixedly connected to the fixed rod 32 and the rubber ring 35, respectively. By setting the pressure spring 36, when the base plate 1 collides with other objects, the guard plate 31 will be forced to move backward and compress the pressure spring 36. During the compression process, the pressure spring 36 absorbs the energy generated by the collision through its own elastic deformation, and converts the impact force into the elastic potential energy of the spring.

[0026] Specifically, an auxiliary component 4 is provided on one side of the base plate 1. The auxiliary component 4 includes a crossbar 41, which is fixedly connected to the base plate 1. A fixing plate 42 is fixedly connected to the surface of the crossbar 41. A hole is opened on the surface of the fixing plate 42, and a protrusion 44 is slidably connected to the inner wall of the hole on the surface of the fixing plate 42.

[0027] In this embodiment: by setting auxiliary component 4, when the rear wheel of the base plate 1 slips, the threaded rod 45 is rotated, the threaded rod 45 presses down on the protrusion 44, and the protrusion 44 drives the resistance wheel 43 to abut against the ground. By increasing the contact area between the wheel and the ground, the friction is increased, thereby effectively reducing the slippage and enabling the moving mechanism of the detection robot to resume stable movement in the slipping state, ensuring that the robot can still move normally under various complex ground conditions.

[0028] Specifically, the lower surface of the protrusion 44 is rotatably connected to the resistance wheel 43, and the upper surface of the crossbar 41 is threaded.

[0029] Specifically, the upper surface of the crossbar 41 is threaded with a threaded rod 45, and the threaded rod 45 is rotatably connected to the protrusion 44 on the side near the protrusion 44.

[0030] Specifically, the crossbar 41 is F-shaped, and the upper surface of the threaded rod 45 is fixedly connected with an anti-slip knob.

[0031] In this embodiment: by setting the threaded rod 45, when the rear wheel of the base plate 1 slips, the threaded rod 45 is rotated to press the protrusion 44 downward, thereby driving the resistance wheel 43 to abut against the ground. This increases the contact area between the wheel and the ground, increases the friction, and thus effectively reduces the slippage phenomenon and ensures the stable operation of the inspection robot's moving mechanism.

[0032] Working principle: By setting up the protective device 3 and auxiliary components 4, after the base plate 1 collides with other objects, the protective plate 31 moves backward under force and compresses the pressure spring 36. The pressure spring 36 generates elastic force, and at the same time, the protective plate 31 squeezes the piston rod 37. The piston rod 37 drives the piston plug 34 to move backward. The tube body 33 contains a large amount of air. Through the cooperation of the piston and the pressure spring 36, the impact force is buffered. When the rear wheel of the base plate 1 slips, the threaded rod 45 is rotated. The threaded rod 45 squeezes the protrusion 44 downward. The protrusion 44 drives the resistance wheel 43 to abut against the ground. At this time, the contact area between the wheel and the ground is increased, which helps to reduce the slippage. Furthermore, the reverse rotation of the threaded rod 45 facilitates the lifting of the resistance wheel 43 off the ground, making it easier to pass through obstacles. By incorporating this invention, when the base plate 1 collides with other objects, the protective structure composed of the guard plate 31, pressure spring 36, piston rod 37, and piston plug 34 can effectively buffer the impact force. The pressure spring 36 compresses to generate elastic force, and the piston plug 34 moves compressed air within the tube 33. This multi-buffering mechanism can reduce the damage to the base plate 1 and connecting parts caused by collisions, reduce equipment damage and maintenance costs caused by collisions, extend the service life of the equipment, and ensure the normal operation of the equipment in complex environments.

Claims

1. A mobile mechanism for an inspection robot, comprising a base plate (1) and a protective device (3), characterized in that: The base plate (1) is rotatably connected to both sides of the wheel (2). The protective device (3) is set at the front end of the base plate (1). The protective device (3) includes a tube (33). The tube (33) is fixedly connected to the base plate (1). A rubber stopper (34) is slidably connected to the inner wall of the tube (33). A piston rod (37) is fixedly connected to the front end of the rubber stopper (34). The side of the piston rod (37) away from the rubber stopper (34) passes through the tube (33) and is fixedly connected to a fixing rod (32). A guard plate (31) is fixedly connected to the side of the fixing rod (32) away from the piston rod (37). The guard plate (31) is arc-shaped.

2. The mobile mechanism for a detection robot according to claim 1, characterized in that: A rubber ring (35) is fitted at the sliding point between the piston rod (37) and the tube body (33). There are two piston rods (37), which are arranged symmetrically.

3. The mobile mechanism for a detection robot according to claim 2, characterized in that: A pressure spring (36) is fitted on the surface of the piston rod (37), and the two ends of the pressure spring (36) are fixedly connected to the fixed rod (32) and the rubber ring (35) respectively.

4. The mobile mechanism for a detection robot according to claim 1, characterized in that: An auxiliary component (4) is provided on one side of the base plate (1). The auxiliary component (4) includes a crossbar (41). The crossbar (41) is fixedly connected to the base plate (1). A fixing plate (42) is fixedly connected to the surface of the crossbar (41). A hole is opened on the surface of the fixing plate (42). A protrusion (44) is slidably connected to the inner wall of the hole on the surface of the fixing plate (42).

5. The mobile mechanism for a detection robot according to claim 4, characterized in that: The lower surface of the protrusion (44) is rotatably connected to a resistance wheel (43), and the upper surface of the crossbar (41) is threaded.

6. The mobile mechanism for a detection robot according to claim 5, characterized in that: The upper surface of the crossbar (41) is threaded with a threaded rod (45), and the threaded rod (45) is rotatably connected to the protrusion (44) on the side near the protrusion (44).

7. The mobile mechanism for a detection robot according to claim 6, characterized in that: The crossbar (41) is arranged in an "F" shape, and an anti-slip knob is fixedly connected to the upper surface of the threaded rod (45).

Citation Information

Patent Citations

  • Moving mechanism for concrete detection robot

    CN219339597U