Road flatness detection device
By designing an electric cylinder to drive the lifting and advancing of the feeler gauge, the automated operation of the highway smoothness testing device was realized, solving the problems of cumbersome operation and low accuracy in the existing technology, and improving the testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-03
AI Technical Summary
Existing methods for testing highway smoothness are cumbersome, labor-intensive, and have low accuracy, making it difficult to conduct simultaneous testing at multiple points.
A highway smoothness testing device was designed, which uses an electric cylinder to drive the lifting and advancing of the feeler gauge. It is controlled by wires and switches to achieve automated testing, simplify the operation process, and allow multiple points to be tested simultaneously.
It improves detection efficiency, shortens detection time, and provides more accurate detection results, enabling simultaneous data acquisition from multiple locations.
Smart Images

Figure CN224077924U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flatness detection technology, and in particular to a highway flatness detection device. Background Technology
[0002] The technique for checking road smoothness using a long spirit level is as follows: Place the spirit level horizontally and steadily on the roadbed to be tested, ensuring full contact between the spirit level and the road surface. Keep the bubble level within the marked area to ensure measurement accuracy. Select several test points on the spirit level. At each point, gently push the feeler gauge into the gap between the bottom of the spirit level and the ground until resistance is encountered. Visually read the feeler gauge's markings.
[0003] Generally, the smoothness needs to be tested at nine points on the device. Technicians need to squat down and continuously operate and move the device nine times to obtain readings at these points in sequence. This is quite troublesome and laborious. In addition, during the movement, it cannot be guaranteed that the device will stay in the same position, and the detection accuracy will also have a certain error. Therefore, a highway smoothness testing device is proposed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0005] Therefore, one objective of this utility model is to provide a highway smoothness testing device to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
[0006] To achieve the above objectives, one embodiment of the present invention provides a highway smoothness testing device, including a body, wires, and a handle, wherein the handle is fixedly connected to the top of the body;
[0007] A cable tray is fixedly connected to several points at the edge of the top surface of the machine body. A clamp is fixedly connected to the front end of the cable tray, and a first electric cylinder is fixedly connected to the inner side of the clamp.
[0008] The output end of the first electric cylinder is fixedly connected to a clamp, and the inner side of the clamp is fixedly connected to a second electric cylinder. The second electric cylinder is installed horizontally, and the output end of the second electric cylinder is fixedly connected to a connector. A feeler gauge is fixedly connected to the front of the connector, and the inclined surface of the top surface of the feeler gauge is movably connected to the edge of the bottom surface of the machine body.
[0009] The side of the machine body is fixedly connected with the wires of the first electric cylinder and the second electric cylinder, and the second electric cylinder integrates a pressure sensor.
[0010] The handle is equipped with switches for the first electric cylinder and the second electric cylinder, and several leveling bulbs are installed on the inner side of the machine body.
[0011] Preferably, in any of the above solutions, the body is made of aluminum alloy and the body is welded to the handle.
[0012] The above technical solution is adopted: This device consists of two main parts: the main body and the flatness detection.
[0013] The main body of the device consists of a body, a handle, and a horizontal bubble structure.
[0014] The flatness inspection section consists of wires, cable trays, a first electric cylinder, clamps, a second electric cylinder, connectors, and feeler gauges.
[0015] Preferably, in any of the above solutions, the rear end of the cable tray is riveted to the top surface of the machine body at multiple points, the cable tray is evenly fixed at at least nine points on the machine body, and the first electric cylinder is installed vertically.
[0016] Using the above technical solution: When using this device, place the machine body horizontally and stably on the road surface to be tested, ensuring full contact between the machine body and the road surface. Ensure the bubble level on the machine body is within the marked area to ensure measurement accuracy. Connect the machine body to a power source or temporary power supply via an electrical cord. Activate the corresponding switch on the handle to start the first electric cylinder. The output end of the first electric cylinder extends, and the second electric cylinder descends until the connector and the bottom surface of the feeler gauge contact the road surface, compacting the machine body. Operate the corresponding switch on the handle to start the second electric cylinder. The output end of the second electric cylinder extends, and the feeler gauge is gently pushed into the gap between the bottom surface of the machine body and the road surface. The second electric cylinder has a pressure sensor that receives the pressure transmitted back from the feeler gauge. When the feeler gauge encounters resistance, it sends feedback to the second electric cylinder, stopping its extension. Read the scale corresponding to the edge of the bottom surface of the machine body on the top surface of the feeler gauge to obtain an error value. This value represents the road surface smoothness at that point. This allows for the simultaneous acquisition of road surface smoothness error values at multiple points on the machine body, typically nine.
[0017] Compared to the conventional method of manually inserting feeler gauges one by one, this device automates the inspection process by using an electric cylinder to drive the raising, lowering, and advancing of the feeler gauges. Operators only need to operate the switch on the handle to complete the inspection, eliminating the need for manual insertion and removal of the feeler gauges. The device is designed to simultaneously inspect multiple points (typically nine) on the bottom of the machine, thus obtaining multiple data points at once and significantly reducing inspection time. The application of this device greatly improves the efficiency of road surface smoothness inspection, significantly shortens inspection time, and ensures accurate feeler gauge movement and precise inspection results.
[0018] Preferably, in any of the above solutions, the clamp is connected to the outside of the first electric cylinder by screws, and the reciprocating stroke of the first electric cylinder is fixed.
[0019] Preferably, in any of the above embodiments, the bottom surface of the connector is flush with the bottom plane of the feeler gauge, and the connector is bonded to the feeler gauge.
[0020] Preferably, the top surface of the feeler gauge is integrated with graduations, as described in any of the above embodiments.
[0021] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0022] This road surface evenness testing device, through the coordinated arrangement of wires, cable trays, a first electric cylinder, clamps, a second electric cylinder, connectors, and feeler gauges, automates the testing process compared to the conventional method of manually inserting feeler gauges one by one. The device uses an electric cylinder to drive the raising, lowering, and advancing of the feeler gauges, achieving automation. Operators only need to operate a switch on the handle to complete the testing action, eliminating the need for manual insertion and removal of the feeler gauges. The device design allows for simultaneous testing of multiple points on the bottom of the machine (typically nine points), thus obtaining multiple data points at once and significantly reducing testing time. The application of this device greatly improves the efficiency of road surface evenness testing, significantly shortens testing time, and ensures accurate feeler gauge movement and test results.
[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0025] Figure 1 This is a first-view structural schematic diagram of the present invention;
[0026] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;
[0027] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;
[0028] Figure 4 This is a schematic diagram of the structure of the first electric cylinder of this utility model.
[0029] In the diagram: 1-body, 2-wire, 3-handle, 4-cable tray, 5-clamp, 6-first electric cylinder, 7-second electric cylinder, 8-connector, 9-feeler gauge, 10-level bubble. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] like Figure 1-4 As shown, this highway smoothness testing device includes a body 1, a power cable 2, and a handle 3. The handle 3 is fixedly connected to the top of the body 1.
[0033] A cable tray 4 is fixedly connected at several points on the top edge of the machine body 1. A clamp 5 is fixedly connected to the front end of the cable tray 4, and a first electric cylinder 6 is fixedly connected to the inner side of the clamp 5.
[0034] The output end of the first electric cylinder 6 is fixedly connected to a clamp 5. The inner side of the clamp 5 is fixedly connected to a second electric cylinder 7. The second electric cylinder 7 is installed horizontally. The output end of the second electric cylinder 7 is fixedly connected to a connector 8. The front of the connector 8 is fixedly connected to a feeler gauge 9. The inclined surface of the top surface of the feeler gauge 9 is movably connected to the edge of the bottom surface of the machine body 1.
[0035] The side of the machine body 1 is fixedly connected with the wires 2 of the first electric cylinder 6 and the second electric cylinder 7. The second electric cylinder 7 has an integrated pressure sensor inside.
[0036] The handle 2 is equipped with switches for the first electric cylinder 6 and the second electric cylinder 7, and several level bulbs 10 are installed on the inside of the body 1.
[0037] Example 1: The body 1 is made of aluminum alloy and is welded to the handle 2. This device consists of two main parts: the main body and the flatness detection; the main body of the device consists of the body 1, the handle 3, and the level bubble 10.
[0038] The flatness inspection section consists of wire 2, cable tray 4, first electric cylinder 6, clamp 5, second electric cylinder 7, connector 8, and feeler gauge 9.
[0039] Example 2: The rear end of the cable tray 4 is riveted to the top surface of the machine body 1 at multiple points. The cable tray 4 is evenly fixed at at least nine points on the machine body 1. The first electric cylinder 6 is installed vertically. The clamp 5 is connected to the outer side of the first electric cylinder 6 by screws. The reciprocating stroke of the first electric cylinder 6 is fixed. The bottom surface of the connector 8 is flush with the bottom plane of the feeler gauge 9, and the connector 8 is bonded to the feeler gauge 9. The top surface of the feeler gauge 9 has integrated graduations.
[0040] The working principle of this utility model is as follows:
[0041] Place the machine body 1 horizontally and stably on the road surface to be tested, ensuring full contact between the machine body 1 and the road surface. Ensure the level bubble 10 on the machine body 1 is within the marked area to ensure measurement accuracy. Connect the machine body 1 to a power source or temporary power supply via the wire 2. Activate the corresponding switch on the handle 3 to start the first electric cylinder 6. The output end of the first electric cylinder 6 extends, and the second electric cylinder 7 descends until the bottom surfaces of the connector 8 and feeler gauge 9 contact the road surface, compacting the machine body 1. Operate the corresponding switch on the handle 3 to start the second electric cylinder 7. The output end of the second electric cylinder 7 extends, and the feeler gauge 9 is gently pushed into the gap between the bottom surface of the machine body 1 and the road surface. The second electric cylinder 7 has a pressure sensor that receives the pressure transmitted back from the feeler gauge 9. When the feeler gauge 9 encounters resistance, feedback is sent to the second electric cylinder 7, stopping its extension. Read the scale corresponding to the edge of the bottom surface of the feeler gauge 9, obtaining an error value. This value represents the road surface smoothness at that point. This allows for the simultaneous acquisition of road surface smoothness error values at multiple points (typically nine) on the machine body 1.
[0042] Compared with the prior art, the present invention has the following advantages:
[0043] This road surface evenness testing device, through the coordinated arrangement of wire 2, cable tray 4, first electric cylinder 6, clamp 5, second electric cylinder 7, connector 8, and feeler gauge 9, automates the testing process compared to the conventional method of manually inserting feeler gauges 9 one by one. This device automates the testing process by using an electric cylinder to drive the raising, lowering, and advancing of the feeler gauges. Operators only need to operate the switch on handle 3 to complete the testing action, eliminating the need for manual insertion and removal of the feeler gauges 9. The device design allows for simultaneous testing of multiple points (typically nine points) on the bottom of the machine body 1, thus obtaining multiple data points at once and significantly reducing testing time. The application of this device greatly improves the efficiency of road surface evenness testing, significantly shortens testing time, and ensures accurate feeler gauge 9 movement and precise test results.
Claims
1. A highway smoothness testing device, characterized in that, Includes a body (1), wires (2), and handle (3), with the handle (3) fixedly connected to the top of the body (1); A cable tray (4) is fixedly connected at several points on the top edge of the body (1). A clamp (5) is fixedly connected to the front end of the cable tray (4). A first electric cylinder (6) is fixedly connected to the inner side of the clamp (5). The output end of the first electric cylinder (6) is fixedly connected to a clamp (5), and the inner side of the clamp (5) is fixedly connected to a second electric cylinder (7). The second electric cylinder (7) is installed horizontally, and the output end of the second electric cylinder (7) is fixedly connected to a connector (8). The front of the connector (8) is fixedly connected to a feeler gauge (9), and the inclined surface of the top surface of the feeler gauge (9) is movably connected to the edge of the bottom surface of the machine body (1). The side of the body (1) is fixedly connected with the wires (2) of the first electric cylinder (6) and the second electric cylinder (7), and the second electric cylinder (7) has a pressure sensor integrated inside; The handle is equipped with switches for the first electric cylinder (6) and the second electric cylinder (7), and several level bulbs (10) are installed on the inner side of the body (1).
2. The highway smoothness testing device as described in claim 1, characterized in that: The body (1) is made of aluminum alloy and is welded to the handle.
3. The highway smoothness testing device as described in claim 2, characterized in that: The rear end of the bridge (4) is riveted to the top surface of the body (1) at multiple points. The bridge (4) is evenly fixed on at least nine points on the body (1). The first electric cylinder (6) is installed vertically.
4. The highway smoothness testing device as described in claim 3, characterized in that: The clamp (5) is connected to the outside of the first electric cylinder (6) by screws, and the reciprocating stroke of the first electric cylinder (6) is fixed.
5. The highway smoothness testing device as described in claim 4, characterized in that: The bottom surface of the connector (8) is flush with the bottom plane of the feeler gauge (9), and the connector (8) is bonded to the feeler gauge (9).
6. The highway smoothness testing device as described in claim 5, characterized in that: The feeler gauge (9) has graduations integrated on its top surface.