Bridge pavement vibration detection device

Abstract

The utility model discloses a bridge pavement vibration detection device which comprises a detection box, two supporting plates are arranged on the left outer side and the right outer side of the detection box up and down at intervals, sliding rails are vertically arranged on the two supporting plates on the right side, and a top plate covers the top of the detection box; the detection assembly is located in the detection box; the fixing assembly comprises a first fixing plate, a second fixing plate, a fixing bolt, a connecting block and a sliding block, the first fixing plate and the second fixing plate are both in an arc shape, fixing parts are arranged at the two ends of the first fixing plate and the two ends of the second fixing plate, and a plurality of positioning holes are sequentially formed in the fixing parts; by arranging the first fixing plate and the second fixing plate, the device is fixed on bridge facilities such as a street lamp post and a guardrail on a bridge, when a detection point is located on a slope, the device is placed on the slope, and the device cannot slide towards the lower part of the slope after being vibrated, so that the device can be placed on the slope for detection, and the detection efficiency is improved. And the detection range of the device can be further enlarged.

Description

Technical Field

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

[0002] During the use of bridges, their bearing capacity will decrease with the corrosion and cracking of concrete, rust of steel bars, loss of prestress of steel strands, etc. With the extension of bridge service life, the rapid increase in transportation volume and the increase in vehicle load tonnage, bridge safety issues have become increasingly prominent, and the importance of bridge inspection has increased. Routine and regular bridge inspection has become an indispensable part of bridge inspection. Among them, the detection of bridge pavement vibration amplitude is a very important item in bridge inspection projects. At present, the detection of bridge pavement vibration amplitude is usually completed using a vibration detection device.

[0003] In the prior art, there is a bridge vibration amplitude detection device with announcement number CN219956704U, which includes: a detection box, a pair of limit slide grooves are provided on both sides of the detection box, a slide rod is provided in the limit slide groove, and a spring is sleeved on the slide rod; a detection rod is also provided in the detection box, and the two ends of the detection rod are respectively slidably connected with the two slide rods, and the two ends of the detection rod are respectively connected with the top ends of the two springs; a detection block is provided on the detection rod; a high-frequency laser rangefinder is provided on the inner top of the detection box, and its detection end is vertically facing the detection block; the detection block senses the vibration force from the bridge, and the detection block will make corresponding up and down movements according to the vibration of the bridge by relying on the limit slide groove, and the high-frequency laser rangefinder detects the displacement of the up and down movement of the detection block, and further can obtain the vibration amplitude of the bridge.

[0004] In the above scheme, the device is placed directly on the ground, and the counterweight is used to increase its own weight to prevent the device from displacement. However, when the detection point is located on the slope of the bridge, the device is placed on the slope, and the device is vibrated and slides along the slope to the lower part of the slope, thereby causing the detection point to change, and then causing the detection result to change. In summary, the device is not suitable for being placed on a slope for vibration detection, resulting in a smaller detection range of the device. Utility Model Content

[0005] The utility model aims to provide a bridge pavement vibration detection device, which can be placed on a slope for detection, thereby increasing its detection range.

[0006] To achieve the above-mentioned purpose, a bridge pavement vibration detection device is provided, which includes: a detection box, two support plates are arranged at intervals on the left and right outer sides of the detection box, and slide rails are vertically arranged on the two support plates on the right side, and a top plate is provided on the top cover of the detection box; a detection component, which is located in the detection box; a fixing component, which includes a first fixing plate, a second fixing plate, fixing bolts, a connecting block and a sliding block, the first fixing plate and the second fixing plate are both arc-shaped, and fixing parts are arranged at both ends of the first fixing plate and the second fixing plate, and a plurality of positioning holes are opened in sequence on the fixing parts, and the fixing bolts are respectively passed through the positioning holes of the first fixing plate and the second fixing plate, and a connecting block is arranged on the outer side of the first fixing plate, the connecting block is rotatably connected to one end of the sliding block, and the other end of the sliding block is slidably connected to the sliding rail.

[0007] The working principle and effect of the above scheme: when the device is used to detect the vibration frequency of the bridge, the detection box is placed on the bridge pavement, and the device is fixed to the bridge facilities such as the lamp posts and guardrails on the bridge using the fixing assembly; when fixing, the nuts of the fixing bolts are removed to separate the first fixing plate and the second fixing plate, the first fixing plate is close to the lamp post, and the second fixing plate is close to the first fixing plate, the fixing bolts are successively passed through the corresponding positioning holes and the nuts are tightened, so as to fix the first fixing plate and the second fixing plate, so that the lamp post is clamped between the first fixing plate and the second fixing plate; during detection, the detection assembly can measure the vibration frequency and other parameters of the bridge, and when the detection box vibrates with the bridge pavement, the slide rail moves up and down relative to the slider;

[0008] When external force is applied to the first fixing plate and the second fixing plate, elastic deformation will occur, thereby changing the curvature thereof, so that the first fixing plate and the second fixing plate are suitable for columns with different diameters.

[0009] By setting a first fixing plate and a second fixing plate, the device is fixed on bridge facilities such as lamp posts and guardrails on the bridge. When the detection point is on a slope, the device is placed on the slope. After being vibrated, the device will not slide to the lower part of the slope, so that the device can be placed on the slope for detection, and the detection range of the device can be further increased. By setting a slide rail, when the device vibrates, the slider on the first fixing plate can move up and down along the slide rail, so as to avoid the detection box and the first fixing plate from breaking at the connection due to inconsistent vibration frequencies.

[0010] According to the bridge pavement vibration detection device, the detection component includes a vibration sensor and a wireless transmitter. The vibration sensor is located in a detection box. A detection probe is provided at the bottom of the vibration sensor. One end of the detection probe extends to the bottom of the detection box. The wireless transmitter is located in the detection box and is electrically connected to the vibration sensor.

[0011] When installing the detection probe, the end of the detection probe needs to contact the bridge pavement to be detected. When the bridge vibrates, the device will jump up and down due to the vibration. The detection probe obtains its vibration parameters by detecting the changes in the distance between its end and the bridge pavement. When the detection component is working, the measurement data of the detection probe will be transmitted to the wireless transmitter through the vibration sensor, and the data will be sent to the user end through the wireless transmitter, making it convenient to view and record the data in real time.

[0012] According to the bridge pavement vibration detection device, the two upper support plates are provided with fixing rods, the fixing rods are provided with solar panels, and the detection box is provided with batteries. The solar panels, wireless transmitters and vibration sensors are all electrically connected to the batteries.

[0013] By setting up solar panels, the solar panels can convert solar energy into electrical energy and store it in batteries. The electricity from the batteries can provide power for the wireless transmitter and the vibration sensor. By setting up solar panels above the detection box, the solar panels can block the sun for the detection box, thereby preventing the detection box from being exposed to the sun and increasing its temperature, and further preventing overheating of components such as the vibration sensor in the detection box.

[0014] According to the bridge pavement vibration detection device, the two support plates located at the bottom are both provided with support legs, the support legs are threadedly connected to the support plates, and pads are provided at the bottoms of the support legs.

[0015] When there is a depression on the bridge pavement, the legs can be rotated according to the pavement conditions so that each pad is in contact with the pavement, further making the detection box flush with the pavement.

[0016] According to the bridge pavement vibration detection device, a ventilation hole is opened on the right side of the detection box between the two support plates, and a dustproof net is arranged in the ventilation hole.

[0017] By setting up vents, air can circulate inside and outside the detection box, and the heat generated by the detection components in the detection box when working can be taken out during the air circulation; by setting up a dustproof net, the dustproof net can play a dust-proof role, thereby preventing dust from damaging the detection components in the detection box.

[0018] According to the bridge pavement vibration detection device, a roller is arranged at the bottom of the detection box, a push rod is arranged on the left side of the detection box, and the push rod is connected to the two support plates on the left side.

[0019] By setting a push rod, when moving the device, pushing the push rod can push the device to move; by setting a roller, the rotation of the roller can facilitate the moving of the device.

[0020] According to the bridge pavement vibration detection device, a groove is provided in the slide rail, a guide rod is provided in the groove, and the sliding block is located in the groove and is slidably connected to the guide rod.

[0021] When the detection box bounces up and down due to vibration, the slider slides up and down along the groove. During this process, the guide rod can prevent the slider from deviating during the sliding process.

[0022] According to the bridge pavement vibration detection device, a bracket is provided at the bottom of the detection box, and a counterweight block is slidably provided in the bracket.

[0023] The counterweight can be a common structure such as a brick or a stone. By setting up a bracket and a counterweight, when the device is placed on the bridge pavement, the counterweight can increase the weight of the device and lower the working center of gravity of the device, thereby preventing the device from tipping over due to vibration.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0026] Figure 1 It is a stereoscopic diagram of a bridge pavement vibration detection device.

[0027] Figure 2 The present invention is a cross-sectional view of a detection box of a bridge pavement vibration detection device.

[0028] Figure 3 The present invention is a stereoscopic diagram of a fixing assembly of a bridge pavement vibration detection device.

[0029] Figure 4 The present invention is a stereoscopic diagram of a slide rail of a bridge pavement vibration detection device.

[0030] Among them: detection box 10, support plate 11, fixing rod 111, support leg 112, pad 113, slide rail 12, groove 121, guide rod 122, top plate 13, vent 14, dust net 141, roller 15, push rod 16, bracket 17, counterweight 171, detection component 20, vibration sensor 21, wireless transmitter 22, detection probe 23, solar panel 24, battery 25, fixing component 30, first fixing plate 31, fixing part 311, positioning hole 312, second fixing plate 32, fixing bolt 33, connecting block 34, slider 35. DETAILED DESCRIPTION

[0031] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Reference Figure 1-Figure 4 The utility model is a bridge pavement vibration detection device, which includes: a detection box 10, wherein two support plates 11 are arranged at intervals on the left and right outer sides of the detection box 10, and slide rails 12 are arranged vertically on the two support plates 11 on the right side, and a top plate 13 is arranged on the top cover of the detection box 10; a detection component 20, wherein the detection component 20 is located in the detection box 10; a fixing component 30, wherein the fixing component 30 includes a first fixing plate 31, a second fixing plate 32, a fixing bolt 33, a connecting block 34 and a sliding block 35, wherein the first fixing plate 31 and the second fixing plate 32 are both arc-shaped, and fixing parts 311 are arranged at both ends of the first fixing plate 31 and the second fixing plate 32, and a plurality of positioning holes 312 are sequentially opened on the fixing parts 311, and the fixing bolts 33 are respectively penetrated through the positioning holes 312 of the first fixing plate 31 and the second fixing plate 32, and a connecting block 34 is arranged on the outer side of the first fixing plate 31, and the connecting block 34 is rotatably connected to one end of the sliding block 35, and the other end of the sliding block 35 is slidably connected to the sliding rail 12.

[0036] Specifically, when the device is used to detect the vibration frequency of a bridge, the detection box 10 is placed on the bridge pavement, and the fixing assembly 30 is used to fix the device to bridge facilities such as lamp posts and guardrails on the bridge; when fixing, the nuts of the fixing bolts 33 are removed to separate the first fixing plate 31 and the second fixing plate 32, the first fixing plate 31 is close to the lamp post, and the second fixing plate 32 is close to the first fixing plate 31, the fixing bolts 33 are successively passed through corresponding positioning holes 312 and the nuts are tightened, thereby fixing the first fixing plate 31 and the second fixing plate 32, so that the lamp post is clamped between the first fixing plate 31 and the second fixing plate 32; during detection, the detection assembly 20 can measure parameters such as the vibration frequency of the bridge, and when the detection box 10 vibrates with the bridge pavement, the slide rail 12 moves up and down relative to the slider 35.

[0037] Optionally, the detection component 20 includes a vibration sensor 21 and a wireless transmitter 22. The vibration sensor 21 is located in the detection box 10. A detection probe 23 is provided at the bottom of the vibration sensor 21. One end of the detection probe 23 extends toward the bottom of the detection box 10. The wireless transmitter 22 is located in the detection box 10 and is electrically connected to the vibration sensor 21.

[0038] Optionally, the two upper support plates 11 are provided with fixing rods 111 , on which solar panels 24 are provided, and a battery 25 is provided in the detection box 10 , and the solar panel 24 , the wireless transmitter 22 and the vibration sensor 21 are all electrically connected to the battery 25 .

[0039] Optionally, the two support plates 11 located at the bottom are both provided with supporting legs 112 , the supporting legs 112 are threadedly connected to the support plates 11 , and a pad 113 is provided at the bottom of the supporting legs 112 .

[0040] Optionally, a ventilation hole 14 is opened on the right side of the detection box 10 between the two support plates 11 , and a dustproof net 141 is arranged in the ventilation hole 14 .

[0041] Optionally, a roller 15 is disposed at the bottom of the detection box 10 , and a push rod 16 is disposed on the left side of the detection box 10 , and the push rod 16 is connected to the two support plates 11 on the left side.

[0042] Optionally, a groove 121 is defined in the slide rail 12 , a guide rod 122 is disposed in the groove 121 , and the slider 35 is located in the groove 121 and is slidably connected to the guide rod 122 .

[0043] Optionally, a bracket 17 is disposed at the bottom of the detection box 10 , and a counterweight block 171 is slidably disposed in the bracket 17 .

[0044] Specifically, when the device is used to detect the vibration frequency of a bridge, the detection box 10 is placed on the bridge pavement, the legs 112 are rotated according to the pavement conditions, so that each pad 113 is in contact with the pavement, and the detection box 10 is further flush with the pavement, and the fixing assembly 30 is used to fix the device on bridge facilities such as street lamp posts and guardrails on the bridge. When fixing, the nuts of the fixing bolts 33 are removed to separate the first fixing plate 31 and the second fixing plate 32, the first fixing plate 31 is close to the lamp post, the second fixing plate 32 is close to the first fixing plate 31, and the fixing bolts 33 are successively penetrated through the corresponding positioning holes 312 And tighten the nuts to fix the first fixing plate 31 and the second fixing plate 32, so that the lamp post is clamped between the first fixing plate 31 and the second fixing plate 32; during detection, the detection box 10 is vibrated and jumps up and down, the slider 35 slides up and down along the groove 121, the spring is compressed or stretched, and the detection probe 23 obtains its vibration parameters by detecting the change in the interval between its end and the bridge pavement. The data detected by the detection probe 23 can be transmitted to the wireless transmitter 22 through the vibration sensor 21, and the data is sent to the user end through the wireless transmitter 22, which is convenient for real-time viewing and recording of data.

[0045] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A bridge pavement vibration detection device, characterized in that: include: A detection box, wherein two support plates are arranged at intervals on the left and right outer sides of the detection box, two support plates on the right side are vertically provided with slide rails, and a top plate is provided on the top cover of the detection box; A detection component, wherein the detection component is located in the detection box; A fixing assembly, wherein the fixing assembly includes a first fixing plate, a second fixing plate, fixing bolts, a connecting block and a sliding block. The first fixing plate and the second fixing plate are both arc-shaped. Both ends of the first fixing plate and the second fixing plate are provided with fixing parts. The fixing parts are sequentially provided with a plurality of positioning holes. The fixing bolts are respectively passed through the positioning holes of the first fixing plate and the second fixing plate. A connecting block is provided on the outer side of the first fixing plate. The connecting block is rotatably connected to one end of the sliding block, and the other end of the sliding block is slidably connected to the slide rail.

2. A bridge pavement vibration detection device according to claim 1, characterized in that: The detection component includes a vibration sensor and a wireless transmitter. The vibration sensor is located in a detection box. A detection probe is provided at the bottom of the vibration sensor. One end of the detection probe extends to the bottom of the detection box. The wireless transmitter is located in the detection box and is electrically connected to the vibration sensor.

3. A bridge pavement vibration detection device according to claim 2, characterized in that: The two upper support plates are provided with fixing rods, the fixing rods are provided with solar panels, and the detection box is provided with batteries. The solar panels, wireless transmitters and vibration sensors are all electrically connected to the batteries.

4. A bridge pavement vibration detection device according to claim 1, characterized in that: The two support plates located at the bottom are both provided with supporting legs, the supporting legs are threadedly connected to the supporting plates, and pads are provided at the bottoms of the supporting legs.

5. A bridge pavement vibration detection device according to claim 1, characterized in that: A vent is provided on the right side of the detection box between the two support plates, and a dustproof net is arranged in the vent.

6. A bridge pavement vibration detection device according to claim 1, characterized in that: A roller is arranged at the bottom of the detection box, and a push rod is arranged on the left side of the detection box, and the push rod is connected with two support plates on the left side.

7. A bridge pavement vibration detection device according to claim 1, characterized in that: A groove is provided in the slide rail, a guide rod is arranged in the groove, and the slide block is located in the groove and is slidably connected with the guide rod.

8. A bridge pavement vibration detection device according to claim 1, characterized in that: A bracket is arranged at the bottom of the detection box, and a counterweight block is slidably arranged in the bracket.

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