Road deformation detection device

Abstract

The application discloses a road deformation detection device, which comprises a bottom plate, a top plate, a sliding rod, a detection ruler, a detection position calculation unit and a detection position indication unit. The top plate is fixedly arranged above the bottom plate through a connecting piece. A first guide groove is formed in the bottom plate and penetrates through the upper and lower surfaces of the bottom plate. A plurality of pressure sensors are arranged on the top plate and are arranged horizontally in sequence. The upper end of the sliding rod is in contact with the sensing surface of the pressure sensor, and the lower end of the sliding rod is arranged in the first guide groove and can slide along the first guide groove. The pressure sensor is connected with the detection position calculation unit and the detection position indication unit. The application effectively improves the efficiency, accuracy and use convenience of road deformation detection.

Description

Technical Field

[0001] This utility model relates to the field of road inspection technology, and in particular to a road deformation detection device. Background Technology

[0002] The smoothness and deformation of a road directly affect traffic safety and driving comfort. Therefore, it is necessary to detect road surface deformation during road maintenance and project acceptance. The commonly used detection tool is a road gauge. The gauge is placed on the road surface manually, and the location of the maximum gap between the gauge and the road surface is observed to determine the unevenness of the road surface.

[0003] However, in practical use, existing measuring rulers often require inspectors to squat or even lie on the ground to accurately locate the maximum gap and take readings, making the process both laborious and inconvenient. Furthermore, manually placing measuring tools for gap measurement is easily affected by viewing angle and operational errors, reducing the accuracy and efficiency of the inspection results. Utility Model Content

[0004] The main objective of this application is to provide a road deformation detection device, which aims to solve the problem of insufficient universality of road surface detection devices in related technologies.

[0005] To achieve the above objectives, this application adopts the following technical solution: A road deformation detection device includes a base plate, a top plate, a slide bar, a detection ruler, a detection position calculation unit, and a detection position indication unit; The top plate is fixedly mounted on the top plate via a connector. The bottom plate has a first guide groove that runs through the upper and lower surfaces of the bottom plate. The top plate is equipped with several pressure sensors arranged horizontally in sequence. The upper end of the slide rod contacts the sensing surface of the pressure sensor, and the lower end of the slide rod is set in the first guide groove, allowing the slide rod to slide along the first guide groove. The pressure sensor is connected to the detection position indication unit via the detection position calculation unit.

[0006] In one embodiment, the slide bar includes a sleeve and a thin rod disposed inside the sleeve. The thin rod is connected to the sleeve by a spring. A first pulley is disposed at the top of the thin rod, and a second pulley is disposed at the bottom of the sleeve. The first pulley contacts the bottom surface of the top plate, and the second pulley is disposed in a first guide groove.

[0007] In one embodiment, the sleeve is further provided with a first limiting member, which includes a limiting seat and a slider. The limiting seat is longitudinally slidably disposed on the sleeve. The limiting seat is provided with sliders at both ends perpendicular to the guide of the first guide groove. The corresponding two sides of the connector are also provided with a second limiting member. The second limiting member is provided with a limiting groove so that the slider of the limiting seat is installed in the groove.

[0008] In one embodiment, a handle is provided above the top plate, and a second guide groove is provided at the corresponding position of the top plate. The two ends of the handle are connected to the top sides of the limiting seat through a first connecting rod passing through the second guide groove.

[0009] In one embodiment, the measuring ruler includes a first wedge gauge and a second wedge gauge arranged vertically. The first wedge gauge and the second wedge gauge are fixedly connected by a second connecting rod. The distance from the bottom surface of the first wedge gauge to the bottom surface of the second wedge gauge is the same as the distance from the bottom surface of the base plate to the bottom surface of the top plate.

[0010] In one embodiment, the connector is provided with a snap fastener.

[0011] In one embodiment, the detection position calculation unit includes an MCU microcontroller, and the detection position indication unit includes several indicator lights, which are disposed on the top surface of the top plate. The number of indicator lights is the same as the number of pressure sensors.

[0012] One or more technical solutions proposed in this application have at least the following technical effects: The road deformation detection device provided in this application, by arranging pressure sensors on the top plate and combining them with a detection position calculation unit and an indication unit, achieves automatic identification and intuitive indication of the location of the maximum gap on the road surface, avoiding the cumbersome operation of inspection personnel squatting or lying on the ground to observe; at the same time, by utilizing the structural design of sliding rods, limiting parts and wedge gauges, the detection process is ensured to be stable and reliable, reducing errors caused by human perspective and operation, thereby effectively improving the efficiency, accuracy and ease of use of road deformation detection. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is an isometric view of the structure of the road deformation detection device embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the slide bar in this application.

[0016] Figure 3 This is a front view of the structure of the road deformation detection device embodiment of this application.

[0017] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0018] Reference numerals: 100 Top plate, 101 Second guide groove, 102 Indicator light, 103 Connector, 104 Buckle, 105 Base plate, 106 First guide groove, 200 Slide rod, 201 Handle, 202 First connecting rod, 203 First pulley, 204 Thin rod, 205 Spring, 206 Limit seat, 207 Slider, 208 Sleeve, 209 Second pulley, 210 Baffle, 301 First wedge gauge, 302 Second wedge gauge, 303 Second connecting rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an apparatus or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an apparatus or system. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the apparatus or system including that element. In this application, unless otherwise expressly specified and limited, the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. In this application, if descriptions refer to "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may expressly or implicitly include at least one of those features. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis that those skilled in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0021] Currently, among the commonly used road inspection methods, the inspection ruler inspection has the problems of low efficiency and limited accuracy due to human factors. Continuous inspection vehicles are not suitable for fine measurement of local locations, and slope inspection usually relies on independent equipment and cannot be carried out simultaneously with flatness inspection. Therefore, there is an urgent need for a road inspection solution that can take into account accuracy, efficiency and practicality in order to improve the flexibility and universality of road surface inspection.

[0022] To address the aforementioned problems, this application provides a road deformation detection device to improve its versatility. Specific embodiments and implementation methods are as follows: Reference Figure 1 , Figure 2 and Figure 3This embodiment proposes a road deformation detection device, including: a base plate 105, a top plate 100, a sliding rod 200, a detection ruler, a detection position calculation unit, and a detection position indication unit. The top plate 100 is fixedly mounted above the base plate 105 via a connector 103. A first guide groove 106 is formed on the base plate 105, penetrating the upper and lower surfaces of the base plate 105. A plurality of pressure sensors are mounted on the top plate 100, arranged horizontally in sequence. The upper end of the sliding rod contacts the sensing surface of the pressure sensor, and the lower end of the sliding rod is disposed within the first guide groove 106. The sliding rod 200 can slide along the first guide groove 106. The pressure sensors are connected to the detection position indication unit via the detection position calculation unit.

[0023] The slide bar 200 includes a sleeve 208 and a thin rod 204 disposed inside the sleeve 208. The thin rod 204 is connected to the sleeve 208 by a spring 205. A first pulley 203 is disposed at the top of the thin rod 204, and a second pulley 209 is disposed at the bottom of the sleeve 204. The first pulley 203 contacts the bottom surface of the top plate 100, and the second pulley 209 is disposed in the first guide groove 106.

[0024] The sleeve 208 is also provided with a first limiting member, which includes a limiting seat 206 and a slider 207. The limiting seat 206 is longitudinally slidably disposed on the sleeve 208. The slider 207 is disposed at both ends of the limiting seat 206 perpendicular to the guide of the first guide groove 106. The corresponding two sides of the connecting member 103 are also provided with a second limiting member. The second limiting member has a limiting groove so that the slider 207 of the limiting seat 206 is installed in the groove.

[0025] A handle 201 is provided above the top plate 100, and a second guide groove 101 is provided at the corresponding position of the top plate 100. The two ends of the handle 201 are connected to the top sides of the limiting seat 206 through a first connecting rod 202 passing through the second guide groove 101.

[0026] The measuring gauge includes a first wedge gauge 301 and a second wedge gauge 302, which are positioned vertically. The first wedge gauge 301 and the second wedge gauge 302 are fixedly connected by a second connecting rod 303. The distance from the bottom surface of the first wedge gauge 301 to the bottom surface of the second wedge gauge 302 is the same as the distance from the bottom surface of the base plate 105 to the bottom surface of the top plate 100. A buckle 104 is provided on the connecting piece.

[0027] The detection position calculation unit includes an MCU microcontroller, and the detection position indication unit includes several indicator lights 102. The indicator lights 102 are located on the top surface of the top plate, and the number of indicator lights 102 is the same as the number of pressure sensors.

[0028] Specifically, when the device is in a suspended state, the bottom of the slide rod 200 extends beyond the bottom surface of the base plate 105. In this embodiment, the limiting seat 206 is slidably mounted on the sleeve 208. The top of the sleeve 208 is provided with a baffle 210. The limiting seat 206 is placed in the groove of the second limiting member by the slider 207 to achieve vertical limiting, thereby preventing the sleeve 206 from sliding out of the limiting seat 206. The sleeve 206 is connected to the thin rod 204 by the spring 205. The top surface of the thin rod 204 is provided with a first pulley 203. The first pulley 203 is in contact with the bottom surface of the top plate 100 (the pressure sensor is located on the bottom surface of the top plate 100, that is, the first pulley 203 is in contact with the sensing surface of the pressure sensor). During testing, the slide bar 200 is positioned on the left side of the device. The testing personnel place the device on the road surface to be tested. At this time, both the base plate 105 and the second pulley 209 are in contact with the road surface. The sleeve 208 of the slide bar 200 slides upward under the support force of the road surface. At this time, the spring 205 is compressed, which is then transmitted to the thin rod 204, thereby changing the pressure applied to the pressure sensor. Then, the operator can push the slide bar 200 to the right side of the device using the handle 201 along the second guide groove 101. It can be understood that during this process, the slide bar 200 sequentially applies pressure to each pressure sensor arranged along the guide groove 101. The detection position calculation unit records the readings of each pressure sensor. It is understood that if the road deforms, the ejection height of the sleeve 209 will change due to the road elevation difference. At this time, the spring 205 deforms, and the elastic force of the spring 205 changes. Consequently, the sliding pressure received by each pressure sensor may be different. This is affected by the road deformation. It is understood that when the base plate 105 is placed on the road surface, it will contact the highest point of the road surface. The distance between the lowest point of the road surface and the base plate 105 is the maximum gap. This lowest point is also the position of the pressure sensor with the minimum pressure value. In this embodiment, the position is reflected by the corresponding indicator light. Operators can visually see the location of the largest gap without having to compare the gap with their naked eyes. At this time, the operator removes the measuring ruler from the buckle 104 and places the second wedge gauge 302 at the location of the largest gap. Since the distance between the first wedge gauge 301 and the second wedge gauge 302 is the same as the distance between the bottom plate 105 and the top plate 100, the reading of the second wedge gauge can be fully reflected on the first wedge gauge 301, further reducing the difficulty of operation for the operator and eliminating the need for the operator to squat or lie down to operate.

[0029] In one example, each indicator light 102 is positioned vertically corresponding to each pressure sensor. The position calculation unit determines the position of the pressure sensor with the minimum pressure value and illuminates the corresponding indicator light for easy observation by the operator. In this example, the position calculation unit is an MCU microcontroller. One connection method is that the pressure sensor is connected to the input pin of the MCU via an analog-to-digital converter (ADC), and the output pin of the MCU is connected to the LED group. The MCU is also connected to a first proximity sensor and a second proximity sensor. The first proximity sensor is located on the left side of the device, and the second proximity sensor is located on the right side. When detection begins, when the first proximity sensor detects that the slider is moving away, it triggers the MCU to start reading and storing the readings of each pressure sensor. When the second proximity sensor detects that the slider is moving closer, it triggers the MCU to start calculating the minimum value between the maximum values ​​of the readings of each pressure sensor, determines the output pin of the LED corresponding to that pressure sensor, and outputs a drive signal through that output pin to illuminate the LED. It is understood that the control logic of the MCU can be implemented through hardware programming, which is existing technology and will not be elaborated here.

[0030] Specifically, in this embodiment, a road deformation detection device is provided. Its overall structure comprises a base plate, a top plate, a sliding rod, a detection ruler, a detection position calculation unit, and a detection position indication unit. The top plate is fixed to the base plate via connectors, and several pressure sensors are arranged sequentially along the transverse direction on the top plate. One end of the sliding rod contacts the pressure sensor, and the other end is positioned in a first guide groove penetrating the base plate, allowing the sliding rod to slide within the groove. The pressure sensor is connected to the detection position calculation unit, which is further connected to the detection position indication unit, thereby realizing the detection and indication of road surface deformation.

[0031] The sliding rod employs a combination structure of a sleeve and a thin rod, with the thin rod connected to the sleeve via a spring. A first pulley is located at the top of the thin rod, contacting a pressure sensor on the bottom surface of the top plate; a second pulley is located at the bottom of the sleeve, sliding within a guide groove. This design allows the sliding rod to deform like a spring when supported by the road surface, transmitting varying pressures to the pressure sensor and enabling sensitive detection of road surface undulations. To ensure the vertical stability of the sliding rod and prevent it from detaching, the sleeve is equipped with limiting components, including a limiting seat and a slider. The limiting seat can slide longitudinally on the sleeve, while the slider is installed within a limiting groove, thus preventing the sliding rod from coming off due to uneven force.

[0032] In terms of operation, the device features a handle on its top plate, which, along with a second guide groove and a first connecting rod on the top plate, allows the operator to push the slide bar along the guide groove to complete a lateral scan. The device is equipped with a measuring scale consisting of two wedge-shaped feeler gauges, fixed together by a connecting rod, with the distance between the two gauges matching the distance between the bottom and top plates. After the inspection is complete, the operator can directly remove the measuring scale and place the lower second wedge-shaped feeler gauge at the maximum gap position; its reading will be simultaneously reflected on the first wedge-shaped feeler gauge, thus enabling readings to be taken without squatting or lying down.

[0033] In terms of signal processing, the detection position calculation unit is composed of a single-chip microcontroller (MCU). The analog signals from each pressure sensor are input to the MCU via an analog-to-digital converter (ADC). The MCU's output is connected to indicator lights located on the top surface, with each indicator light corresponding to a pressure sensor. During detection, a sliding rod slides from one side of the device to the other, applying pressure to each sensor sequentially, and the MCU records the sensor readings. When the first proximity sensor detects that the sliding rod has started moving, the MCU initiates data acquisition; when the second proximity sensor detects that the sliding rod has reached its endpoint, the MCU performs calculations, compares the sensor values, determines the location of the minimum pressure value, and illuminates the corresponding indicator light. In this way, operators can quickly and intuitively obtain the location of the maximum road surface gap without relying on manual visual inspection or comparison.

[0034] In summary, this embodiment combines mechanical structure with electronic computing to achieve efficient and intuitive detection of road deformation. Its advantages include: eliminating the need for inspectors to squat or lie down, improving inspection convenience; enhancing detection sensitivity and stability through a spring and pulley structure; reducing human reading errors and improving detection accuracy through sensor and indicator light linkage; and ensuring direct data correspondence through the design of the detection ruler, further simplifying the operation process and improving the efficiency and accuracy of road inspection.

[0035] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A road deformation detection device, characterized in that, It includes a base plate, a top plate, a sliding rod, a measuring ruler, a measuring position calculation unit, and a measuring position indication unit; The top plate is fixedly mounted above the bottom plate by a connector. The bottom plate is provided with a first guide groove that runs through the upper and lower surfaces of the bottom plate. The top plate is provided with a plurality of pressure sensors arranged horizontally in sequence. The upper end of the slide rod is in contact with the sensing surface of the pressure sensor, and the lower end of the slide rod is disposed in the first guide groove. The slide rod can slide along the first guide groove. The pressure sensor is connected to the detection position indication unit through the detection position calculation unit.

2. The road deformation detection device according to claim 1, characterized in that, The slide bar includes a sleeve and a thin rod disposed inside the sleeve. The thin rod is connected to the sleeve by a spring. A first pulley is disposed at the top of the thin rod, and a second pulley is disposed at the bottom of the sleeve. The first pulley contacts the bottom surface of the top plate, and the second pulley is disposed in the first guide groove.

3. The road deformation detection device according to claim 2, characterized in that, The sleeve is also provided with a first limiting member, which includes a limiting seat and a slider. The limiting seat is longitudinally slidably disposed on the sleeve. The limiting seat is provided with sliders at both ends perpendicular to the guide of the first guide groove. The connecting member is also provided with a second limiting member on the corresponding two sides. The second limiting member is provided with a limiting groove so that the slider of the limiting seat is installed in the groove.

4. The road deformation detection device according to claim 3, characterized in that, A handle is provided above the top plate, and a second guide groove is provided at the corresponding position of the top plate. The two ends of the handle are connected to the top sides of the limiting seat through a first connecting rod passing through the second guide groove.

5. The road deformation detection device as described in claim 1, characterized in that, The measuring ruler includes a first wedge gauge and a second wedge gauge arranged vertically. The first wedge gauge and the second wedge gauge are fixedly connected by a second connecting rod. The distance from the bottom surface of the first wedge gauge to the bottom surface of the second wedge gauge is the same as the distance from the bottom surface of the base plate to the bottom surface of the top plate.

6. The road deformation detection device according to claim 5, characterized in that, The connector is equipped with a buckle.

7. The road deformation detection device as described in claim 1, characterized in that, The detection position calculation unit includes an MCU microcontroller, and the detection position indication unit includes several indicator lights. The indicator lights are located on the top surface of the top plate, and the number of indicator lights is the same as the number of pressure sensors.

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