Undercarriage detection roller

By using the encoder and drive assembly of the undercarriage inspection roller, the distance between the video speed measuring device and the roller can be measured and adjusted in real time. This solves the problems of high site requirements and poor operability of traditional testing methods, and enables efficient calibration and improvement of the video speed measuring device.

CN224480495UActive Publication Date: 2026-07-10HANGZHOU DONGHOU ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU DONGHOU ELECTRONICS CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-10

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    Figure CN224480495U_ABST
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Abstract

The utility model relates to vehicle detection technical field discloses the detection of car bottom drum, including frame, the side wall between frame both sides rotatory connection has the drum, the one side of frame is provided with encoder, the other side of frame is provided with motor no.
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Description

Technical Field

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

[0002] With the sustained and rapid development of the economy, the number of cars on the road has increased rapidly. To ensure the lifespan of roads and the safety of passengers, speed measuring devices are typically installed at pre-set points during vehicle use. Video speed measuring devices, with their combined functions of speed accuracy and image recording, are widely used in the field of road speed measurement. To ensure the accuracy of video speed measuring devices, testing, improvement, and calibration are usually required.

[0003] Currently, road testing is commonly used to test, improve, and calibrate video speed measurement devices. This involves driving a vehicle on a test road, calculating the vehicle's position change in adjacent video frames, combining the camera frame rate with the actual distance ratio to derive the speed, comparing it with the actual speed, and calculating the error result.

[0004] However, the above-mentioned testing methods have high requirements for the test site, poor operability, and low efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a vehicle under-body inspection roller, which aims to solve the problems of high requirements for the test site, poor operability, and low efficiency of traditional testing methods.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vehicle under-surface detection roller, comprising a frame, with a roller rotatably connected between the side walls of both sides of the frame, an encoder disposed on one side of the frame, one side of the encoder disposed at one end of the roller, a second motor and a control cabinet disposed on the other side of the frame, the output end of the second motor being fixedly disposed at the other end of the roller, a drive assembly disposed on the upper side of the frame, an adjustment mechanism fixedly disposed on the lower side of the drive assembly, one side of the adjustment mechanism being fixedly connected to the inner wall of the frame, the adjustment mechanism being located above the roller, and the control cabinet being electrically connected to the drive assembly, the second motor, and the encoder.

[0007] The above technical solution solves the problems of high requirements for the test site, poor operability, and low efficiency of traditional test methods by using an encoder to measure the rotation speed of the roller in real time and comparing it with the measurement data of the video speed measuring device under test.

[0008] Preferably, the control cabinet includes a housing, a controller is disposed inside the housing, and a control panel, a speed meter and buttons are disposed on the outer wall of the housing. The controller is electrically connected to the control panel, the speed meter, the buttons, the drive assembly, the motor and the encoder.

[0009] Preferably, the adjustment mechanism includes a mounting frame and an adjustment assembly. The lower side of the drive assembly is fixedly connected to the top of the adjustment assembly, both sides of the adjustment assembly are fixedly connected to the inner wall of the frame, the lower side of the adjustment assembly is fixedly connected to the upper side of the mounting frame, and the mounting frame is located above the roller.

[0010] Preferably, the adjusting assembly includes a timing belt, with timing pulleys rotatably connected to the inner walls of both ends of the timing belt. A lead screw is fixedly connected to the lower side of the timing pulleys. Bearing seats at both ends of the lead screw are fixedly connected to the inner walls of the frame. A connecting plate is fixedly connected to the nut seat of the lead screw. Guide rods are slidably connected to both ends of the connecting plate. Both ends of the guide rods are fixedly connected to the inner walls of the frame. The lower sides of both connecting plates are fixedly connected to the upper side of the mounting bracket. The top of one of the lead screws is fixedly connected to the lower side of the drive assembly.

[0011] Preferably, a base is fixedly connected to the lower side of the frame.

[0012] Preferably, cabinet doors are provided on all four outer walls of the frame, a top plate is provided on the upper side of the frame, the drive assembly is provided on the upper side of the top plate, and an inspection door is provided on one side of the frame, which is located below the cabinet doors.

[0013] Preferably, the drive assembly includes a motor, which is disposed on the upper side of the top plate. The output end of the motor is fixedly connected to the top of one of the lead screws, and the motor is electrically connected to the controller.

[0014] Preferably, the drive assembly includes a rocker wheel, which is disposed on the upper side of the top plate, and the lower side of the rocker wheel is fixedly connected to the top of one of the lead screws.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by installing the video speed measuring device to be tested onto the adjustment mechanism, the distance between the adjustment mechanism and the video speed measuring device is adjusted by the drive component, and the main frame and the roller are rotated by the control cabinet and the output of the motor, thereby driving the roller to rotate. The roller rotation speed is measured in real time by the encoder and compared with the data measured by the video speed measuring device to be tested. This solves the problems of high requirements for the test site, poor operability and low efficiency of the traditional test method.

[0017] 2. In this utility model, the housing provides support for the control panel, speed meter and buttons, and with the cooperation of the controller, the control cabinet can realize its control function.

[0018] 3. In this utility model, the synchronous rotation of the two lead screws is achieved through the cooperation of the synchronous pulley and the synchronous belt, and the lead screw and guide rod are supported by the main frame, so that the rotation of the lead screw can drive the connecting plate to move up and down, thereby driving the mounting frame to move up and down, thus realizing the height adjustment function of the adjustment mechanism.

[0019] 4. In this utility model, by designing the drive component as a motor or a rocker wheel, the rotation of the output end of the motor or the rocker wheel can drive the lead screw to rotate, thereby realizing the function of the drive component driving the lead screw to rotate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the undercarriage inspection roller proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the rocker wheel structure of the undercarriage inspection roller proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the frame of the undercarriage inspection roller proposed in this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the structure of the undercarriage inspection roller proposed in this utility model.

[0024] Legend:

[0025] 1. Frame; 2. Top plate; 3. Drive assembly; 4. Motor 1; 5. Cabinet door; 6. Motor 2; 7. Control cabinet; 70. Control panel; 71. Speed ​​gauge; 72. Button; 73. Housing; 8. Base; 9. Inspection door; 10. Encoder; 11. Rocker wheel; 12. Adjustment mechanism; 120. Adjustment assembly; 1200. Synchronous pulley; 1201. Guide rod; 1202. Synchronous belt; 1203. Lead screw; 1204. Connecting plate; 121. Mounting bracket; 13. Roller. Detailed Implementation

[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1:

[0028] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides a vehicle under-body detection roller, including a frame 1, with a roller 13 rotatably connected between the side walls of the two sides of the frame 1. An encoder 10 is provided on one side of the frame 1, and one side of the encoder 10 is located at one end of the roller 13. A motor 6 and a control cabinet 7 are provided on the other side of the frame 1. The output end of the motor 6 is fixedly located at the other end of the roller 13. A drive assembly 3 is provided on the upper side of the frame 1, and an adjustment mechanism 12 is fixedly provided on the lower side of the drive assembly 3. One side of the adjustment mechanism 12 is fixedly connected to the inner wall of the frame 1. The adjustment mechanism 12 is located above the roller 13. The control cabinet 7 is electrically connected to the drive assembly 3, the motor 6, and the encoder 10.

[0029] In this embodiment, the testable speed measuring device can be, but is not limited to, a video speed measuring device. The controller can be a PLC programmable controller, the encoder 10 can be a rotary encoder, and the motor 6 can be a servo motor. Specifically, in use, the video speed measuring device to be tested is installed on the adjustment mechanism 12. Driven by the drive component 3, the vertical distance between the video speed measuring device and the roller 13 can be adjusted. The output of the motor 6 is controlled by the control cabinet 7 to rotate at a set speed. The roller 13 is rotated through the rotational connection with the main frame 1. The encoder 10 detects the rotational speed of the roller 13 in real time and transmits the data to the control cabinet 7 for processing and analysis to obtain the actual rotational speed of the roller 13. Then, the video speed measuring device measures the rotational speed of the roller 13 and compares it with the speed result obtained from the control cabinet 7. This achieves the testing and calibration of the video speed measuring device to be tested, and assists in its improvement. This solves the problems of traditional testing methods having high requirements for the testing site, poor operability, and low efficiency.

[0030] Reference Figure 1 and Figure 4 The control cabinet 7 includes a housing 73, inside which a controller is installed. The outer wall of the housing 73 is equipped with a control panel 70, a speed instrument 71, and a button 72. The controller is electrically connected to the control panel 70, the speed instrument 71, the button 72, the drive assembly 3, the motor 6, and the encoder 10.

[0031] Specifically, the control panel 70 can use a touch screen for human-machine interaction and status display of each module. There are multiple buttons 72. The speed meter 71 is used to display the actual rotation speed of the roller 13 in real time as a reference data. The start and stop of the control cabinet 7 are controlled by the buttons 72. The corresponding instructions are input through the control panel 70 and transmitted to the controller. The controller controls the output of motor 6 to rotate at a preset speed, driving the roller 13 to rotate. The encoder 10 monitors the rotation speed of the roller 13 in real time and transmits it to the controller for processing and analysis. Then it is displayed through the speed meter 71, thus realizing the control function of the control cabinet 7.

[0032] Reference Figure 3 The adjustment mechanism 12 includes a mounting frame 121 and an adjustment component 120. The lower side of the drive component 3 is fixedly connected to the top of the adjustment component 120. Both sides of the adjustment component 120 are fixedly connected to the inner wall of the frame 1. The lower side of the adjustment component 120 is fixedly connected to the upper side of the mounting frame 121. The mounting frame 121 is located above the roller 13.

[0033] Specifically, the video speed measuring device to be tested is installed on the mounting frame 121. The main frame 1 supports the adjustment component 120. Driven by the drive component 3, the adjustment component 120 drives the mounting frame 121 to rise and fall, adjusting the vertical distance between the video speed measuring device and the roller 13, thereby realizing the height adjustment function of the adjustment mechanism 12.

[0034] Reference Figure 1 and Figure 3 The adjusting assembly 120 includes a timing belt 1202, with timing pulleys 1200 rotatably connected to the inner walls of both ends of the timing belt 1202. A lead screw 1203 is fixedly connected to the lower side of the timing pulleys 1200. The bearing seats at both ends of the lead screw 1203 are fixedly connected to the inner wall of the frame 1. A connecting plate 1204 is fixedly connected to the nut seat of the lead screw 1203. Guide rods 1201 are slidably connected to both ends of the connecting plate 1204. Both ends of the guide rods 1201 are fixedly connected to the inner wall of the frame 1. The lower sides of the two connecting plates 1204 are fixedly connected to the upper side of the mounting bracket 121. The top of one of the lead screws 1203 is fixedly connected to the lower side of the drive assembly 3.

[0035] Specifically, the main frame 1 provides stable support for the lead screw 1203 and guide rod 1201. Driven by the drive assembly 3, one of the lead screws 1203 is rotated. Through the rotational connection between the lead screw 1203 and its bearing seat, and the rolling connection between the lead screw 1203 and its nut seat, the nut seat can move up and down. At the same time, the rotation of one lead screw 1203 drives one synchronous pulley 1200 to rotate, which in turn drives the synchronous belt 1202 to rotate, causing the other synchronous pulley 1200 to rotate, which in turn drives the other lead screw 1203 to rotate. This achieves synchronous lifting and lowering of the nut seats of the lead screws 1203 on both sides of the inner wall of the main frame 1, which in turn drives the two connecting plates 1204 to rise and fall. Through the sliding connection between the connecting plate 1204 and the guide rod 1201, the lifting and lowering of the connecting plate 1204 is guided and limited, thereby realizing the function of adjusting the height of the mounting bracket 121 by the adjustment assembly 120.

[0036] Reference Figure 1 A base 8 is fixedly connected to the lower side of the frame 1.

[0037] Specifically, the base 8 provides support for the main frame 1, thereby helping to improve the stability of the main frame 1.

[0038] Reference Figure 1 The frame 1 has cabinet doors 5 on all four outer walls, a top plate 2 on the upper side of the frame 1, a drive assembly 3 on the upper side of the top plate 2, and an inspection door 9 on one side of the frame 1, which is located below the cabinet door 5.

[0039] Specifically, the cabinet door 5 and the top plate 2 provide protection for the internal structure of the main frame 1. The inspection door 9 allows for the inspection of the roller 13, thereby improving the safety of the inspection roller.

[0040] Reference Figure 1 and Figure 4 The drive assembly 3 includes a motor 4, which is located on the upper side of the top plate 2. The output end of the motor 4 is fixedly connected to the top of one of the lead screws 1203. The motor 4 is electrically connected to the controller.

[0041] Specifically, the controller controls the output of motor 4 to drive one of the lead screws 1203 to rotate, thereby raising and lowering the mounting bracket 121, thus realizing the driving function of the drive component 3.

[0042] Example 2:

[0043] Reference Figure 2 and Figure 3 The present invention also provides an embodiment in which the drive assembly 3 includes a rocker wheel 11, which is disposed on the upper side of the top plate 2, and the lower side of the rocker wheel 11 is fixedly connected to the top of one of the lead screws 1203.

[0044] Specifically, by manually turning the rocker wheel 11, one of the lead screws 1203 is rotated, causing the mounting bracket 121 to rise and fall, thus realizing the driving function of the drive assembly 3.

[0045] Working principle: When in use, the video speed measuring device to be tested is installed on the mounting frame 121. If the drive component 3 is motor 4, the output end of motor 4 is driven by the controller to drive one of the lead screws 1203 to rotate. If the drive component 3 is rocker wheel 11, the rocker wheel 11 is turned by hand to drive one of the lead screws 1203 to rotate, so that the mounting frame 121 is raised and lowered, thereby realizing the function of drive component 3 to drive adjustment mechanism 12 for adjustment.

[0046] The rotation of one of the lead screws 1203 drives the synchronous pulley 1200 at its upper end to rotate. Through the cooperation of the synchronous belt 1202, the other lead screw 1203 is driven to rotate, thereby realizing the synchronous rotation of the two lead screws 1203. Through the guidance and limiting of the guide rod 1201, the connecting plate 1204 moves vertically, driving the mounting frame 121 to move vertically, thereby realizing the function of adjusting the distance between the video speed measuring device under test and the roller 13.

[0047] Inputting corresponding commands through the control panel 70 transmits them to the controller. The controller then controls the output of motor 6 to rotate at a preset speed, driving the roller 13 to rotate. The encoder 10 monitors the rotation speed of the roller 13 in real time and transmits the data to the controller for processing and analysis. The speed is then displayed on the speed meter 71 and compared with the data from the video speed measuring device under test. This solves the problems of high requirements for the test site, poor operability, and low efficiency of traditional test methods.

[0048] 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 vehicle under-car inspection roller, comprising a frame (1), characterized in that: A roller (13) is rotatably connected between the side walls on both sides of the frame (1). An encoder (10) is provided on one side of the frame (1), and one side of the encoder (10) is located at one end of the roller (13). A motor (6) and a control cabinet (7) are provided on the other side of the frame (1). The output end of the motor (6) is fixedly located at the other end of the roller (13). A drive assembly (3) is provided on the upper side of the frame (1). An adjustment mechanism (12) is fixedly provided on the lower side of the drive assembly (3). One side of the adjustment mechanism (12) is fixedly connected to the inner wall of the frame (1). The adjustment mechanism (12) is located above the roller (13). The control cabinet (7) is electrically connected to the drive assembly (3), the motor (6), and the encoder (10).

2. The undercarriage inspection roller according to claim 1, characterized in that: The control cabinet (7) includes a housing (73), inside which a controller is provided, and on the outer wall of the housing (73) a control panel (70), a speed meter (71) and a button (72) are provided. The controller is electrically connected to the control panel (70), the speed meter (71), the button (72), the drive assembly (3), the second motor (6), and the encoder (10).

3. The undercarriage inspection roller according to claim 1, characterized in that: The adjustment mechanism (12) includes a mounting frame (121) and an adjustment component (120). The lower side of the drive component (3) is fixedly connected to the top of the adjustment component (120). Both sides of the adjustment component (120) are fixedly connected to the inner wall of the frame (1). The lower side of the adjustment component (120) is fixedly connected to the upper side of the mounting frame (121). The mounting frame (121) is located above the roller (13).

4. The undercarriage inspection roller according to claim 3, characterized in that: The adjusting assembly (120) includes a timing belt (1202), with timing pulleys (1200) rotatably connected to the inner walls of both ends of the timing belt (1202). A lead screw (1203) is fixedly connected to the lower side of the timing pulley (1200). The bearing seats at both ends of the lead screw (1203) are fixedly connected to the inner wall of the frame (1). A connecting plate (1204) is fixedly connected to the nut seat of the lead screw (1203). Guide rods (1201) are slidably connected to both ends of the connecting plate (1204). Both ends of the guide rods (1201) are fixedly connected to the inner wall of the frame (1). The lower sides of the two connecting plates (1204) are fixedly connected to the upper side of the mounting bracket (121). The top of one of the lead screws (1203) is fixedly connected to the lower side of the drive assembly (3).

5. The undercarriage inspection roller according to claim 1, characterized in that: A base (8) is fixedly connected to the lower side of the frame (1).

6. The undercarriage inspection roller according to claim 1, characterized in that: The frame (1) is provided with cabinet doors (5) on all four outer walls. The frame (1) is provided with a top plate (2) on the upper side. The drive assembly (3) is provided on the upper side of the top plate (2). The frame (1) is provided with an inspection door (9) on one side. The inspection door (9) is located below the cabinet door (5).

7. The undercarriage inspection roller according to claim 1, characterized in that: The drive assembly (3) includes a motor (4), which is located on the upper side of the top plate (2). The output end of the motor (4) is fixedly connected to the top of one of the lead screws (1203). The motor (4) is electrically connected to the controller.

8. The undercarriage inspection roller according to claim 1, characterized in that: The drive assembly (3) includes a rocker wheel (11) which is disposed on the upper side of the top plate (2), and the lower side of the rocker wheel (11) is fixedly connected to the top of one of the lead screws (1203).