Bridge surface flatness detection device

Abstract

A bridge surface flatness detection device comprises a laser range finder and a moving trolley, the laser range finder is arranged in the middle of the top of the moving trolley, a trolley body is formed by assembling a trolley body, wheels, a motor, a locking mechanism and a damping system, a data processing module is arranged in the trolley body, and fixed-point lifting devices are arranged on the two sides of the trolley body. The fixed-point lifting device comprises an electric push rod and supporting feet, a fixing device is arranged at the top of the electric push rod and provided with first threaded holes, second threaded holes are formed in the two sides of the trolley body, the first threaded holes correspond to the second threaded holes in size one to one, telescopic rods of the electric push rod are arranged downwards, and the supporting feet are arranged at the bottoms of the telescopic rods. And the electric push rod is electrically connected with the data processing module through a wire. And through the arrangement of the laser range finder and the fixed-point lifting device, the measurement range of the trolley can be greatly expanded, the measurement accuracy is ensured, and the measurement efficiency of the bridge flatness is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge detection, in particular to a bridge surface flatness detection device. Background Art

[0002] Bridges are one of the main traffic routes. The quality of bridges directly affects people's lives, so bridge inspection is crucial and is also an important basis for ensuring the normal use and maintenance of bridges. Bridge inspection includes bridge deck inspection, bridge superstructure inspection, bridge substructure inspection, bridge bearing capacity inspection, etc. Among them, the inspection of bridge decks requires the inspection of the smoothness of the bridge road surface. Usually, when inspecting the smoothness of the bridge road surface, the staff needs to use a level ruler to measure, place the level ruler on the bridge road surface, keep the level ruler in a horizontal state, and then measure the distance between each part between the two ends of the level ruler and the road surface. The inspection efficiency is low.

[0003] At present, a Chinese patent with the authorization announcement number CN221029479U discloses a road bridge construction flatness measurement tool, including a base, a vertical frame fixedly connected to the middle of the top of the base, a balance plate hinged on the top of the vertical frame, a card frame fixedly connected to both ends of the balance plate, four movable rods hinged inside the two card frames, a card tube fixedly connected to the middle of the top of the balance plate, two balls are arranged inside the card tube, and a bell and a stone are arranged on both sides of the card tube, respectively, push rods are hinged on both sides of the bottom of the balance plate, a pressure plate is fixedly connected to the middle of the two push rods, a compression air bag is arranged at the bottom of the two push rods, resin paint is arranged at the bottom of the two compression air bags, and a cone head is fixedly connected to the bottom of the two push rods. The utility model is provided with a series of structures to amplify the position of the uneven road surface through sound, so as to facilitate the surveyor to make a quick judgment, and at the same time, it is conducive to timely marking the road depression and reducing the probability of missing the mark.

[0004] The above-mentioned prior art solution has the following defects: the device is mainly used to detect the flatness of roads and bridges during the construction process, the detection method is relatively primitive, cannot run automatically, has no data recording capability, and has low detection efficiency. Utility Model Content

[0005] The utility model aims to provide a bridge surface flatness detection device to solve the problems existing in the above-mentioned prior art.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A bridge surface flatness detection device comprises a laser rangefinder and a mobile trolley, wherein the laser rangefinder is arranged at the middle position of the top of the mobile trolley, and the mobile trolley comprises a trolley body, a data processing module, a displacement sensor, a distance sensor and a fixed-point lifting device;

[0008] The trolley body is assembled from a body, wheels, a motor, a locking mechanism, and a shock absorbing system;

[0009] A data processing module is arranged inside the vehicle body, a displacement sensor is arranged on one side of the laser rangefinder, the displacement sensor is arranged on the top of the vehicle body, a distance sensor is arranged on the wheel, and the distance sensor and the displacement sensor are electrically connected to the data processing module through wires;

[0010] Fixed-point lifting devices are arranged on both sides of the vehicle body, and the fixed-point lifting devices include an electric push rod and a support foot. A fixing device is arranged on the top of the electric push rod, and a first threaded hole is arranged on the fixing device. Second threaded holes are arranged on both sides of the vehicle body, and the sizes of the first threaded holes correspond to those of the second threaded holes one by one. The telescopic rod of the electric push rod is arranged downward, and a support foot is arranged at the bottom of the telescopic rod. The electric push rod is electrically connected to the data processing module through wires.

[0011] By adopting the above technical solution, the distance sensor and displacement sensor can detect whether there are gaps or depressions in the road surface, while the laser rangefinder can determine the flatness of the bridge deck of a large bridge by setting up a pair of mobile carts. When the distance measurement starts, the electric push rods on both sides will push the telescopic rods downward, and the legs set at the bottom of the telescopic rods will fix the cart on the bridge deck. When the laser rangefinder detects each other, it gradually adjusts the height of the electric push rods, and calculates the flatness of the bridge surface based on the time it takes the laser rangefinder to measure the bridge deck and the distance between the two carts.

[0012] In a further embodiment, a plurality of solar panels are arranged around the periphery of the laser rangefinder, buckles are arranged at the bottom of the solar panels, a plurality of slots are arranged on the vehicle body, and the solar panels are fixedly connected to the vehicle body.

[0013] By adopting the above technical solution, since long-term outdoor work is required, the problem of insufficient battery may be faced. Therefore, a solar panel is provided to ensure that the car can be charged under good weather conditions and provide more working time. The solar panel itself is connected to the car body through buckles and slots, and can be removed when the power is sufficient, thereby improving the practicality of the car.

[0014] In a further embodiment, a touch screen is provided on one side of the vehicle body for displaying the number of the tested bridge and the test date data.

[0015] By adopting the above technical solution, there is no need to connect data cables, which reduces the difficulty of obtaining information and allows operators to understand the operating status of the trolley and the bridge deck condition more clearly.

[0016] In a further embodiment, a sunshade structure is provided above the touch screen to prevent the touch screen from being damaged by exposure to the sun.

[0017] By adopting the above technical solution, although the touch screen itself has undergone a certain degree of heat resistance treatment, it is still necessary to avoid being exposed to the sun as much as possible for safety and service life considerations.

[0018] In a further embodiment, a warning light is provided on one side of the vehicle body.

[0019] By adopting the above technical solution, the warning light is mainly used to prevent human eyes from being directly exposed to the laser of the laser rangefinder. Although there are usually no pedestrians on the bridge, for safety reasons, a warning light that will light up during operation is set to avoid such accidents.

[0020] In a further embodiment, the outer shell material of the vehicle body is PET.

[0021] By adopting the above technical solutions, the PET body shell is strong and durable, and has good heat resistance and corrosion resistance, making it very suitable for outdoor operations.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. Through the setting of laser rangefinder and fixed-point lifting device, the distance between each other can be detected by the laser rangefinders on the two paired measuring trolleys, and the fixed-point lifting device can change the height of the laser rangefinder, lowering it from the original height, and by recording the time when the two laser detectors first detect the bridge surface, the flatness of the bridge surface can be calculated, which greatly improves the detection efficiency;

[0024] 2. Through the setting of displacement sensors and distance sensors, the bridge deck can be measured while the measuring trolley is moving, and the gaps and undulations on the bridge deck can be checked, which improves the detection efficiency of the trolley;

[0025] 3. Through the setting of the warning light, it can light up during the operation of the laser rangefinder to warn passers-by and operators not to look directly at the laser, because the laser beam is a very parallel beam with a very small divergence angle. The laser energy is concentrated in a very thin beam and focused into a very small spot on the retina through the lens. Avoiding direct viewing can prevent the laser from causing irreversible damage to the eyes and play a safety warning and protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of the utility model;

[0027] Figure 2 It is a structural schematic diagram for reflecting the fixed-point lifting device in the utility model;

[0028] Figure 3 It is a structural schematic diagram used to reflect the interior of the vehicle in the utility model.

[0029] In the figure, 1. laser rangefinder; 2. mobile trolley; 3. trolley body; 31. vehicle body; 32. wheels; 33. motor; 34. locking mechanism; 35. shock absorption system; 4. data processing module; 5. displacement sensor; 6. distance sensor; 7. fixed-point lifting device; 71. electric push rod; 72. support leg; 8. solar panel; 9. touch screen. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] Example:

[0033] like Figure 1-3As shown, a bridge surface flatness detection device includes a laser rangefinder 1 and a mobile trolley 2. The laser rangefinder 1 is arranged at the middle position of the top of the mobile trolley 2. The mobile trolley 2 includes a trolley body 3, a data processing module 4, a displacement sensor 5, a distance sensor 6 and a fixed-point lifting device 7. The trolley body 3 is assembled by a body 31, wheels 32, a motor 33, a locking mechanism 34, and a shock absorption system 35. A plurality of solar panels 8 are arranged on the periphery of the laser rangefinder 1. Buckles are arranged at the bottom of the solar panels 8. A plurality of card slots are arranged on the body 31. The solar panels 8 are fixedly connected with the body 31. A warning light is arranged on one side of the body 31. The shell material of the body 31 is PET. The fixed-point lifting devices 7 are arranged on both sides of the body 31. The fixed-point lifting devices 7 include an electric push rod 71 and a support leg 72. A fixing device is arranged on the top of the electric push rod 71. The fixing device is provided with a first threaded hole. The second threaded hole is arranged on both sides of the body 31. Two threaded holes, the sizes of the first threaded hole and the second threaded hole correspond one to one, the telescopic rod of the electric push rod 71 is set downward, and a support leg 72 is set at the bottom of the telescopic rod. The electric push rod 71 is electrically connected to the data processing module 4 through wires. The distance between the bridge deck and the trolley can be measured by the laser rangefinder 1, and the paired mobile trolleys 2 can also measure the distance and position between each other. When they are respectively located at the two ends of the bridge to be measured, they can be lifted to a specific height by the fixed-point lifting device 7 and then slowly descended. In this process, the telescopic rod on the electric push rod 71 pushes the support leg 72 to contact the ground to form a downward supporting force. The flatness of the bridge surface can be inferred through the positions of the two trolleys, the distance between each other and the time when the ranging laser contacts the bridge deck. The solar panel can enhance the endurance of the trolley and is more suitable for outdoor operations. At the same time, the degree of automation is high, and an entire bridge can be quickly inspected.

[0034] like Figure 1-3 As shown, a data processing module 4 is provided inside the vehicle body 31, a displacement sensor 5 is provided on one side of the laser rangefinder 1, the displacement sensor 5 is provided on the top of the vehicle body 31, a distance sensor 6 is provided on the wheel 32, the distance sensor 6 and the displacement sensor 5 are electrically connected to the data processing module 4 through wires, a touch screen 9 is provided on one side of the vehicle body 31, and a sunshade structure is provided above the touch screen 9 to prevent the touch screen 9 from being damaged by exposure to the sun. In addition to the flatness of the bridge surface, there are also detailed data such as surface gaps and undulations that need to be measured. These will be determined by the joint action of the displacement sensor 5 and the distance sensor 6 on the vehicle body 31 to determine whether the road surface is bumpy and undulating. All measured data can be observed in real time from the touch screen 9, and the sunshade structure provided on the top of the touch screen 9 can prevent the touch screen 9 from being exposed to the sun during outdoor operations, causing the temperature of the touch screen 9 to be too high, thereby causing malfunctions and other problems.

[0035] Specific implementation process: the battery is set inside the mobile cart 2, and a charging interface is set at the bottom of the mobile cart 2. The remaining power of the cart and the working time can be checked on the touch screen 9. If the weather conditions are good, the solar panel 8 can be loaded into the slide on the top of the cart as needed to increase the endurance of the cart. When starting work, the two mobile carts 2 will drive to the two ends of the bridge respectively. The laser rangefinder 1 on the top of the mobile cart 2 and the warning light on one side of the car body 31 work together. The warning light reminds passers-by and operators that the laser rangefinder 1 is in working state and they need to avoid looking directly to prevent eye damage. The fixed-point lifting device 7 starts to operate, and the electric push rod 71 operates to push the support foot 72 downward against the ground, gradually lifting the mobile cart 2 is raised to a specified height, and when the laser rangefinder 1 can detect each other's lines, the electric push rod 71 begins to slowly shrink, and the height of the mobile car 2 also begins to drop. When the laser emitted by the laser rangefinder 1 first hits the bridge deck, the data processing module 4 can judge the flatness of the bridge surface according to the position distance between the two cars and the time when the laser contacts the bridge deck. In the process of deploying and recovering the car, the displacement sensor 5 and the distance sensor 6 can continuously collect data information on the bridge surface, such as gaps, cracks, etc., which can be displayed on the touch screen 9, and the data processing module 4 will also record the bridge number, measurement time information and operator information, etc., to facilitate subsequent data processing and the issuance of measurement reports.

[0036] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A bridge surface flatness detection device, comprising a laser rangefinder (1) and a mobile vehicle (2), characterized in that: A laser rangefinder (1) is arranged at the middle position of the top of the mobile trolley (2), and the mobile trolley (2) comprises a trolley body (3), a data processing module (4), a displacement sensor (5), a distance sensor (6) and a fixed-point lifting device (7); The trolley body (3) is assembled from a body (31), wheels (32), a motor (33), a locking mechanism (34), and a shock absorbing system (35); A data processing module (4) is arranged inside the vehicle body (31); a displacement sensor (5) is arranged on one side of the laser rangefinder (1); the displacement sensor (5) is arranged on the top of the vehicle body (31); a distance sensor (6) is arranged on the wheel (32); the distance sensor (6) and the displacement sensor (5) are electrically connected to the data processing module (4) via electric wires; Fixed-point lifting devices (7) are arranged on both sides of the vehicle body (31), and the fixed-point lifting devices (7) include electric push rods (71) and supporting feet (72). A fixing device is arranged on the top of the electric push rod (71), and a first threaded hole is arranged on the fixing device. Second threaded holes are arranged on both sides of the vehicle body (31), and the sizes of the first threaded holes and the second threaded holes correspond to each other. The telescopic rod of the electric push rod (71) is arranged downward, and a supporting foot (72) is arranged at the bottom of the telescopic rod. The electric push rod (71) is electrically connected to the data processing module (4) through wires.

2. A bridge surface flatness detection device according to claim 1, characterized in that: A plurality of solar panels (8) are arranged on the periphery of the laser rangefinder (1), a buckle is arranged at the bottom of the solar panel (8), a plurality of slots are arranged on the vehicle body (31), and the solar panel (8) is fixedly connected to the vehicle body (31) by buckling.

3. A bridge surface flatness detection device according to claim 2, characterized in that: A touch screen (9) is provided on one side of the vehicle body (31) for displaying the number of the tested bridge and test date data.

4. A bridge surface flatness detection device according to claim 3, characterized in that: A sunshade structure is provided above the touch screen (9) to prevent the touch screen (9) from being damaged by exposure to the sun.

5. The bridge surface flatness detection device according to claim 1, characterized in that: A warning light is provided on one side of the vehicle body (31).

6. The bridge surface flatness detection device according to claim 1, characterized in that: The outer shell material of the vehicle body (31) is PET.

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