A freight train underbody inspection device

CN224610839UActive Publication Date: 2026-08-07SCI & TECH RES INST OF CHINA RAILWAY WUHAN BUREAU GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SCI & TECH RES INST OF CHINA RAILWAY WUHAN BUREAU GRP CO LTD
Filing Date
2025-08-26
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0002]传统的货物列车制动装置巡检方式采用巡检机器人沿轨道中部的单轨移动,并通过摄像头采集车底信息,从而避免工作人员俯身检查;然而,当货物列车移动时,其振动会带动轨枕进行振动,从而通过振动的轨枕带动道砟(石块)进行移位,导致巡检机器人在移动过程中将会与石块发生直接碰撞,进而造成机器人受损,因此,本方案提出一种货物列车车底巡检装置,用以解决上述问题

Benefits of technology

本实用新型通过防护板和缓冲组件的设计,在使用时将防护板通过缓冲组件固定在壳体的一侧,当巡检装置沿轨道移动并与松动的道砟石块发生碰撞时,防护板优先接触石块,并通过缓冲组件的形变吸收动能,将瞬间冲击力转化为缓释作用力,从而避免刚性碰撞对壳体内部拍摄部件的损伤,确保摄像头的拍摄稳定性,延长了设备使用寿命,同时减少了维护频率。

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Abstract

The utility model discloses a freight train car bottom inspection device, include: casing, moving assembly, first camera, second camera, fender and buffer assembly, moving assembly sets up at the bottom of casing, and moving assembly is used for moving the position of casing, and first camera is fixedly connected in the inside of casing, and the top of casing is provided with first observation port, and the inside of casing is provided with battery. The utility model discloses through the design of fender and buffer assembly, in use, fender is fixed in the one side of casing through buffer assembly, when the inspection device moves along the track and collides with the loose ballast stone block, and fender contacts the stone block in advance, and through the deformation of buffer assembly, absorbs kinetic energy, converts instantaneous impact force into slow -release force, thereby avoids rigid impact to the damage of casing inside shooting component, ensures the shooting stability of camera, prolongs the service life of equipment, reduces the maintenance frequency simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of train inspection technology, and in particular to a freight train undercarriage inspection device. Background Technology

[0002] Traditional freight train braking system inspection methods involve an inspection robot moving along a single rail in the middle of the track and collecting information about the undercarriage via a camera, thus avoiding the need for workers to bend over for inspection. However, when a freight train moves, its vibrations cause the sleepers to vibrate, which in turn causes the ballast (stones) to shift. This can result in the inspection robot colliding directly with the stones during its movement, potentially damaging the robot. Therefore, this solution proposes a freight train undercarriage inspection device to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide a freight train undercarriage inspection device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a freight train undercarriage inspection device, comprising: Housing; a movable component disposed at the bottom of the housing, the movable component being used to move the position of the housing; A first camera is fixedly connected inside the housing. A first observation port is provided on the top of the housing, and a battery is provided inside the housing. A second camera is disposed on the inner wall of one side of the housing, and a second observation port is provided on one side of the housing; a protective plate is disposed on one side of the housing; A buffer assembly is disposed on one side of the protective plate.

[0005] Preferably, the movable component includes a groove formed at the bottom of the housing, and a guide rail is inserted and connected inside the groove.

[0006] Preferably, a moving motor is fixedly connected to the inner wall at the bottom of the housing, and a walking wheel is fixedly connected to the output end of the moving motor.

[0007] Preferably, the buffer assembly includes a spring disposed on one side of the housing, the spring being disposed on the inner wall of the protective plate.

[0008] Preferably, a movable block is fixedly connected to the inner wall of one side of the protective plate, a fixed rod is fixedly connected to one side of the housing, a connecting groove is provided on one side of the movable block, and the fixed rod is inserted into the inside of the connecting groove.

[0009] Preferably, a limiting groove is provided on the inner wall of one side of the connecting groove, and a limiting post is fixedly connected to one end of the fixing rod, with the limiting post inserted into the inside of the limiting groove.

[0010] Preferably, a damping block is fixedly connected to the inner wall of one side of the limiting groove.

[0011] The technical effects and advantages of this utility model are as follows: This invention utilizes a protective plate and a buffer assembly. During use, the protective plate is fixed to one side of the housing via the buffer assembly. When the inspection device moves along the track and collides with loose ballast stones, the protective plate makes contact with the stones first. The deformation of the buffer assembly absorbs kinetic energy, converting the instantaneous impact force into a slow-release force. This avoids damage to the internal imaging components from rigid collisions, ensures the camera's shooting stability, extends the equipment's service life, and reduces maintenance frequency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a side sectional view of the present invention.

[0014] Figure 3 This is a front cross-sectional view of the present invention.

[0015] Figure 4 This is a front cross-sectional view of the buffer assembly of this utility model.

[0016] In the diagram: 1. Housing; 101. First observation port; 102. Second observation port; 103. Battery; 2. Moving component; 201. Slide rail; 202. Guide rail; 203. Walking wheel; 204. Moving motor; 3. First camera; 4. Second camera; 5. Protective plate; 6. Buffer component; 601. Fixing rod; 602. Connecting groove; 603. Limiting post; 604. Limiting groove; 605. Damping block; 606. Moving block; 607. Spring. Detailed Implementation

[0017] 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.

[0018] This utility model provides, for example Figure 1-4 Shown: Example 1: A freight train undercarriage inspection device includes: a housing 1; a movable component 2, which is disposed at the bottom of the housing 1 and is used to move the position of the housing 1; a first camera 3, which is fixedly connected inside the housing 1, and a first observation port 101 is provided at the top of the housing 1, and a battery 103 is disposed inside the housing 1; a second camera 4, which is disposed on the inner wall of one side of the housing 1, and a second observation port 102 is provided on one side of the housing 1; a protective plate 5, which is disposed on one side of the housing 1; and a buffer component 6, which is disposed on one side of the protective plate 5.

[0019] It should be noted that the second camera 4 is located on one side of the housing 1 and is used to observe the image on one side of the housing 1 during use, thus enabling the inspection device to observe the image on one side while the housing 1 is moving. The first camera 3 is located on the top of the housing 1. During use, the inspection device is first moved to the bottom of the train, and the braking device at the bottom of the freight train is observed through the first camera 3. The battery 103 is an existing lithium battery 103, which is used to power the first camera 3 and the second camera 4 during use. The protective plate 5 is made of polycarbonate, which is a transparent material. During use, it protects the housing 1 while allowing the second camera 4 to observe the image on one side of the housing 1. During use, the protective plate 5 is fixed to one side of the housing 1 by the buffer assembly 6. When the inspection device moves along the track and collides with loose ballast stones, the protective plate 5 first contacts the stones, and the deformation of the buffer assembly 6 absorbs the kinetic energy, converting the instantaneous impact force into a slow-release force, thereby avoiding damage to the internal shooting components of the housing 1 by rigid collision, ensuring the shooting stability of the camera, extending the service life of the equipment, and reducing the maintenance frequency.

[0020] Specifically, the moving component 2 includes a slide groove 201 opened at the bottom of the housing 1, a guide rail 202 is inserted and connected inside the slide groove 201, a moving motor 204 is fixedly connected to the inner wall at the bottom of the housing 1, and a walking wheel 203 is fixedly connected to the output end of the moving motor 204.

[0021] It should be noted that the guide rail 202 is fixed to the sleepers on the freight train with bolts. The slide groove 201 is adapted to the top of the guide rail 202, so that the slide groove 201 can be fitted on the top of the guide rail 202. During use, the guide rail 202 restricts the movement direction of the housing 1. The moving motor 204 is an existing servo motor. The input end of the moving motor 204 is electrically connected to the battery 103, which supplies power to the moving motor 204. During use, the output end of the moving motor 204 is inserted into the inner wall of the bottom of the housing 1 and connected to the traveling wheel 203 at the bottom of the housing 1. During use, the moving motor 204 drives the traveling wheel 203 to rotate in both directions. When it is necessary to move the housing 1 to a certain position, the traveling wheel 203 is rotated, and the rotating traveling wheel 203 moves on the guide rail 202.

[0022] Example 2: Buffer component 6, applied to the inspection device in Example 1; Specifically, the buffer assembly 6 includes a spring 607 disposed on one side of the housing 1, the spring 607 disposed on the inner wall of one side of the protective plate 5, a movable block 606 fixedly connected to the inner wall of one side of the protective plate 5, a fixed rod 601 fixedly connected to one side of the housing 1, a connecting groove 602 opened on one side of the movable block 606, the fixed rod 601 inserted into the inside of the connecting groove 602, a limiting groove 604 opened on the inner wall of one side of the connecting groove 602, a limiting post 603 fixedly connected to one end of the fixed rod 601, the limiting post 603 inserted into the inside of the limiting groove 604, and a damping block 605 fixedly connected to the inner wall of one side of the limiting groove 604.

[0023] It should be noted that the spring 607 is located on the side of the protective plate 5 opposite to the housing 1. During use, the spring 607 absorbs the impact force of the protective plate 5 on the housing 1. The protective plate 5 is fixedly connected to the moving block 606 by bolts. The connecting groove 602 is adapted to the fixed rod 601, allowing the fixed rod 601 to pass through the connecting groove 602 into one side of the moving block 606. The limiting groove 604 is adapted to the limiting post 603, and the width of the limiting post 603 is greater than the width of the connecting groove 602, thus preventing the limiting post 603 from moving out of the limiting groove 602. 4. This design limits the movement distance of the limiting post 603, restricts the movement distance of the moving block 606, and restricts the movement distance of the protective plate 5 through the limiting block 606. The damping block 605 is made of rubber. When the protective plate 5 moves the moving block 606, the limiting post 603 moves inside the limiting groove 604. When the limiting post 603 moves to contact the damping block 605, the damping block 605 is compressed and deformed. The deformation of the damping block 605 absorbs kinetic energy and converts the instantaneous impact force into a slow-release force.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A freight train undercarriage inspection device, characterized in that, include: Housing (1); Movable component (2), the movable component (2) is disposed at the bottom of housing (1) and is used to move the position of housing (1); First camera (3), the first camera (3) is fixedly connected to the inside of housing (1), the top of housing (1) is provided with a first observation port (101), and the inside of housing (1) is provided with a battery (103); Second camera (4), the second camera (4) is disposed on the inner wall of one side of housing (1), and the side of housing (1) is provided with a second observation port (102); Protective plate (5), the protective plate (5) is disposed on one side of housing (1); Buffer component (6), the buffer component (6) is disposed on one side of protective plate (5).

2. The freight train undercarriage inspection device according to claim 1, characterized in that, The moving component (2) includes a groove (201) formed at the bottom of the housing (1), and a guide rail (202) is inserted inside the groove (201).

3. The freight train undercarriage inspection device according to claim 2, characterized in that, A mobile motor (204) is fixedly connected to the inner wall at the bottom of the housing (1), and a walking wheel (203) is fixedly connected to the output end of the mobile motor (204).

4. The freight train undercarriage inspection device according to claim 1, characterized in that, The buffer assembly (6) includes a spring (607) disposed on one side of the housing (1), and the spring (607) is disposed on the inner wall of the protective plate (5).

5. A freight train undercarriage inspection device according to claim 4, characterized in that, A movable block (606) is fixedly connected to the inner wall of one side of the protective plate (5), and a fixed rod (601) is fixedly connected to one side of the shell (1). A connecting groove (602) is opened on one side of the movable block (606), and the fixed rod (601) is inserted into the inside of the connecting groove (602).

6. A freight train undercarriage inspection device according to claim 5, characterized in that, A limiting groove (604) is provided on the inner wall of one side of the connecting groove (602), and a limiting post (603) is fixedly connected to one end of the fixing rod (601). The limiting post (603) is inserted into the inside of the limiting groove (604).

7. A freight train undercarriage inspection device according to claim 6, characterized in that, A damping block (605) is fixedly connected to the inner wall on one side of the limiting groove (604).