Flatness detection device for road construction
By designing a flatness detection device that includes a moving component, a detection component, and a display component, the problem of measurement error caused by wear of the movable rod was solved, and accurate and intuitive detection of road flatness was achieved.
Patent Information
- Application Number
- CN202422938490.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In the prior art, the lower end of the movable rod is easily worn out, resulting in measurement errors, and the road surface flatness detection is inaccurate and non-intuitive.
A flatness detection device including a moving component, a detection component and a display component was designed. The device uses abutment parts and transmission parts that can continuously contact the road surface to amplify the lifting amplitude, and displays the flatness in real time through a displacement sensor.
It achieves accurate and intuitive measurement of road smoothness with minimal wear on the abutment parts, making it easier to observe and measure height changes of uneven road surfaces.
Smart Images

Figure CN223481627U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of highway construction technology, specifically relating to a highway construction flatness detection device. Background Technology
[0002] The smoothness of a highway surface is crucial to driving safety and comfort, and is an important indicator for evaluating road surface performance and maintenance quality. After highway construction is completed, testing the smoothness of the road surface is a key part of the acceptance process.
[0003] Chinese patent document CN221167371U discloses a roadbed and pavement smoothness detection device. Through a smoothing mechanism composed of movable rods and other components, the device can improve the accuracy of roadbed and pavement smoothness detection and accurately locate the unevenness of the pavement during the detection.
[0004] However, in existing technologies, the lower end of the movable rod is prone to wear during the testing process, which can cause measurement errors. Furthermore, the unevenness of the road surface is entirely displayed by the small up and down movement of the movable rod, which is neither accurate nor intuitive. Therefore, a road surface unevenness testing device for highway construction is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a smoothness testing device for highway construction.
[0006] The technical solution adopted in this utility model is as follows:
[0007] A highway construction smoothness testing device includes a movable component that can be easily moved on the highway, a testing component that can continuously measure and visually display the smoothness of the highway within the movable component, and a display component that can display the smoothness of the highway in data form on one side of the movable component.
[0008] The detection components include a contact element that continuously contacts the road surface and rises and falls when the road surface is uneven, a transmission element that makes the height change of the contact element easy to observe, and a lifting element that can display the height change of a certain position in the transmission element in real time.
[0009] Preferably, the abutment includes a limiting clamp plate fixedly installed in the movable component, a lifting rod is movably connected between the limiting clamp plates, an abutment wheel is fixedly connected to the lower end of the lifting rod, and a slide is movably connected to the upper end of the lifting rod.
[0010] Preferably, the transmission component includes a support fixedly mounted on one side of the movable component, a fixing nut fixedly connected to one side of the support, and a transmission rod provided between the slide and the support.
[0011] Preferably, the lifting component includes a base fixedly installed on one side of the moving component, a limit rod fixedly connected to the base, and a telescopic rod provided between the transmission rod and the limit rod.
[0012] Preferably, the limiting clamp is slidably connected to the lifting rod, and the lifting rod is rotatably connected to the slide.
[0013] Preferably, the carriage is slidably connected to the transmission rod, and the support is rotatably connected to the transmission rod.
[0014] Preferably, the transmission rod and the telescopic rod are rotatably connected, and the limiting rod and the telescopic rod are slidably connected.
[0015] The beneficial effects of this utility model are as follows: it facilitates the application of pressure to the abutting part through the transmission component, so that the rolling parts in the abutting part can continuously contact the road surface and roll relative to the road after the device moves, thereby allowing the abutting part to measure the smoothness of the road with minimal wear. At the same time, the transmission component amplifies the lifting range of the abutting part, making it easy to observe and measure the height changes of the abutting part caused by the unevenness of the road surface through the lifting component. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the isometric structure of a highway construction smoothness testing device according to the present invention;
[0018] Figure 2 This is a schematic diagram of the main structure of a highway construction smoothness testing device according to the present invention;
[0019] Figure 3 This is a schematic diagram of some components of the road smoothness testing device described in this utility model;
[0020] Figure 4 This is a schematic diagram of some components of the road construction flatness testing device described in this utility model.
[0021] The following are the descriptions of the reference numerals:
[0022] 1. Moving component; 101. Frame; 102. Mounting slot; 103. Roller; 104. Protective shell; 105. Limiting slot; 2. Detection component; 201. Limiting clamp; 202. Lifting rod; 203. Abutment wheel; 204. Slide; 205. Support; 206. Fixing nut; 207. Transmission rod; 208. Base; 209. Limiting rod; 210. Telescopic rod; 3. Display component; 301. Displacement sensor transmitter; 302. Displacement sensor receiver; 303. Data collector; 304. Display. Detailed Implementation
[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0025] The present invention will be further described below with reference to the embodiments and accompanying drawings.
[0026] like Figures 1-4 As shown, a highway construction smoothness testing device includes a movable component 1 that can be easily moved on the highway. The movable component 1 is equipped with a testing component 2 that can continuously measure and visually display the smoothness of the highway under inspection. A display component 3 that can display the smoothness of the highway in data form is provided on one side of the movable component 1.
[0027] In this embodiment: the mobile component 1 includes a frame 101, an integrally formed mounting groove 102 on the frame 101, a roller 103 fixedly installed below the frame 101, a protective shell 104 fixedly installed above the frame 101, and a limit groove 105 integrally formed on one side of the protective shell 104.
[0028] The frame 101 provides mounting positions for components such as the limiting clamp 201 and the base 208. The mounting groove 102 makes it easy to position and install the limiting clamp 201. The rollers 103 make the frame 101 easy to move. The protective shell 104 provides protection for the detection component 2 and provides mounting positions for some components of the display component 3. The limiting groove 105 limits the range of motion of the support 205.
[0029] In this embodiment: the detection component 2 includes an abutment that can continuously contact the road surface and rise and fall when the road surface is uneven, a transmission component that makes the height change of the abutment easy to observe, and a lifting component that can display the height change of a certain position in the transmission component in real time. The abutment includes a limiting clamp 201 fixedly installed in the moving component 1. A lifting rod 202 is movably connected between the limiting clamps 201. An abutment wheel 203 is fixedly connected to the lower end of the lifting rod 202. A slide 204 is movably connected to the upper end of the lifting rod 202. The transmission component includes a support 205 fixedly installed on one side of the moving component 1. A fixing nut 206 is fixedly connected to one side of the support 205. A transmission rod 207 is provided between the slide 204 and the support 205. The lifting component includes a base 208 fixedly installed in one side of the moving component 1. A limiting rod 209 is fixedly connected to the base 208. A telescopic rod 210 is provided between the transmission rod 207 and the limiting rod 209.
[0030] The limiting clamp 201 is slidably connected to the lifting rod 202, the lifting rod 202 is rotatably connected to the slide 204, the slide 204 is slidably connected to the transmission rod 207, the support 205 is rotatably connected to the transmission rod 207, the transmission rod 207 is rotatably connected to the telescopic rod 210, and the limiting rod 209 is slidably connected to the telescopic rod 210.
[0031] The lifting rod 202, whose movable range is limited by the limiting clamp 201, is used to install the abutment wheel 203, and transmits the height change of the abutment wheel 203 to the slide 204, so that the slide 204 can drive the transmission rod 207 to rotate relative to the support 205. The support 205, which is installed on one side of the protective shell 104 by the fixing nut 206, limits the movable range of one end of the transmission rod 207. The limiting rod 209, which limits the movable range of the tail end of the telescopic rod 210, is installed by the base 208. The height change of the end of the transmission rod 207 away from the support 205 is displayed by the telescopic rod 210.
[0032] In this embodiment: the display component 3 includes a displacement sensor transmitter 301 fixedly installed on the lower side of the telescopic rod 210, a displacement sensor receiver 302 fixedly installed on the base 208, a collector 303 fixedly installed on one side of the protective shell 104, and a display 304 provided above the collector 303.
[0033] The protective shell 104 is rotatably connected to the display 304; the displacement sensor transmitter 301 transmits a signal to the displacement sensor receiver 302, enabling the displacement sensor receiver 302 to detect the displacement change of the displacement sensor transmitter 301. The data acquisition unit 303 collects and processes the signal from the displacement sensor receiver 302 and sends it to the display 304 for display.
[0034] Working Principle: When this device is installed for testing the smoothness of highway construction, it is moved on the highway under inspection. Due to the weight of components such as the transmission rod 207, the contact wheel 203 remains in constant contact with the road surface. When there are uneven areas on the road surface, the height of the contact wheel 203 will change as it passes these areas. This change is transmitted to the transmission rod 207 through the lifting rod 202 and the slide 204. The transmission rod 207 then drives the telescopic rod 210, which is equipped with the displacement sensor transmitter 301, to rise and fall. As the displacement sensor transmitter 301 rises and falls with the telescopic rod 210, its rise and fall amplitude is transmitted to the displacement sensor receiver 302 in the form of a signal. After being processed by the data acquisition unit 303, the signal is transmitted to the display 304 for display. This allows the staff to easily determine whether the smoothness of the road surface meets the standards by observing the height change of the telescopic rod 210.
[0035] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A highway flatness testing device, characterized in that: It includes a mobile component (1) that can be easily moved on the road, and the mobile component (1) is equipped with a detection component (2) that can continuously measure and visually display the smoothness of the road. The mobile component (1) is equipped with a display component (3) on one side that can display the smoothness of the road in the form of data. The detection component (2) includes an abutment that continuously contacts the road surface and rises and falls when the road surface is uneven, a transmission component that makes the height change of the abutment easy to observe, and a lifting component that can display the height change of a certain position in the transmission component in real time.
2. The highway construction smoothness testing device according to claim 1, characterized in that: The abutting component includes a limiting clamp (201) fixedly installed in the moving assembly (1), a lifting rod (202) is movably connected between the limiting clamps (201), an abutting wheel (203) is fixedly connected to the lower end of the lifting rod (202), and a slide (204) is movably connected to the upper end of the lifting rod (202).
3. The highway construction smoothness testing device according to claim 2, characterized in that: The transmission component includes a support (205) fixedly installed on one side of the moving component (1), a fixing nut (206) fixedly connected to one side of the support (205), and a transmission rod (207) provided between the slide (204) and the support (205).
4. The highway construction smoothness testing device according to claim 3, characterized in that: The lifting component includes a base (208) fixedly installed on one side of the moving component (1), a limit rod (209) fixedly connected to the base (208), and a telescopic rod (210) provided between the transmission rod (207) and the limit rod (209).
5. A highway construction smoothness testing device according to claim 2, characterized in that: The limiting clamp (201) is slidably connected to the lifting rod (202), and the lifting rod (202) is rotatably connected to the slide (204).
6. The highway construction smoothness testing device according to claim 3, characterized in that: The slide (204) is slidably connected to the transmission rod (207), and the support (205) is rotatably connected to the transmission rod (207).
7. The highway construction smoothness testing device according to claim 4, characterized in that: The transmission rod (207) is rotatably connected to the telescopic rod (210), and the limiting rod (209) is slidably connected to the telescopic rod (210).
Citation Information
Patent Citations
Roadbed pavement flatness detection device
CN221167371U