Real-time height measuring device for bridge

By designing a real-time bridge height measurement device, a circular float and height measurement mechanism combined with a miniature laser transmitter are used to measure the bridge clearance height and wave height in real time. This solves the problems of inaccurate height measurement and inability to measure height in real time in existing devices, and achieves high-precision and environmentally friendly bridge height measurement.

CN223939053UActive Publication Date: 2026-02-24NINGBO UNIV
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Patent Information

Application Number
CN202520509364.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-24
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing bridge height measurement devices are inaccurate under different weather conditions and cannot measure height in real time. They are also affected by changes in the propagation speed of ultrasonic or laser beams and differences in the height of wave undulations.

Method used

A bridge real-time height measurement device is adopted, which includes a support arm, a cylindrical plastic body, a ring-shaped float, and a height measurement mechanism. The ring-shaped float moves up and down with the waves. Combined with a miniature laser emitter, a current meter, and a generator, it achieves high-precision real-time height measurement by measuring the bridge clearance height and wave height in real time.

Benefits of technology

It enables high-precision real-time measurement of bridge height under different weather conditions, reducing equipment power consumption and environmental risks, and lowering operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a real-time height measuring device for a bridge, and belongs to the technical field of bridges. The real-time height measuring device for the bridge comprises a supporting arm, a cylindrical plastic body is installed at the top of the supporting arm through a fixing bolt, the surface of the cylindrical plastic body is sleeved with a ring-shaped floater, a cylindrical plastic shell is installed at the top of the ring-shaped floater, and a fork-shaped supporting frame is installed on the inner wall of the cylindrical plastic shell. The utility model discloses a river water level measuring device which comprises a circular plastic partition plate, a laser receiving film and a height measuring mechanism, the laser receiving film is mounted at the top of the circular plastic partition plate, and a miniature laser transmitter is embedded in the top of the laser receiving film. The height measuring mechanism is used for accurately measuring the real-time bridge clearance height, the real-time wave height can be calculated by subtracting the real-time bridge clearance height from the bridge height cardinal number, the corresponding bridge clearance height is calculated, and high-precision real-time bridge height measurement is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of bridge technology, and more specifically, to a real-time bridge height measurement device. Background Technology

[0002] Bridge height measurement typically consists of an acoustic or laser transmitter, a sensor receiver, and a calculation and control module. The acoustic transmitter emits ultrasonic waves, and the laser transmitter emits a laser beam. The sensor receiver receives the propagation time of the ultrasonic or laser beam in the air. Based on the speed and time of propagation of the ultrasonic or laser beam in the air, the calculation and control module performs a simple formula calculation to determine the bridge height.

[0003] However, existing bridge height measurement devices only use ultrasonic waves or laser beams to directly measure the height of bridges. Due to the different propagation speeds of ultrasonic waves or laser beams in the air under different weather conditions and the differences in the height of wave undulations, the height measurement results are very inaccurate and cannot be measured in real time. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a bridge real-time height measurement device that overcomes or at least partially solves the above technical problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a bridge real-time height measurement device, including a support arm, a cylindrical plastic body installed on the top of the support arm by fixing bolts, a ring-shaped float sleeved on the surface of the cylindrical plastic body, a cylindrical plastic shell installed on the top of the ring-shaped float, a fork-shaped support frame installed on the inner wall of the cylindrical plastic shell, a circular plastic partition installed on the top of the cylindrical plastic shell, and a height measurement mechanism.

[0007] The height measuring mechanism includes:

[0008] A support rod is mounted on top of a circular plastic partition, and a control circuit board is mounted on the top of the support rod.

[0009] A laser receiving film is mounted on top of a circular plastic partition, and a miniature laser emitter is embedded on the top of the laser receiving film.

[0010] In a preferred embodiment, a first support is mounted on the top of the cylindrical plastic body, and a generator is mounted on the top of the first support.

[0011] In a preferred embodiment, an energy storage battery is mounted on top of the circular plastic partition, the generator is electrically connected to the energy storage battery via wires, and the energy storage battery is electrically connected to a miniature laser emitter via wires.

[0012] In a preferred embodiment, a long straight rod is mounted on the top of the support arm, a signal transmitter is mounted on the top of the long straight rod, and a signal receiving antenna is mounted on the top of the signal transmitter.

[0013] In a preferred embodiment, a circular hole is provided on the right side of the front of the support arm, and a flow meter is embedded in the inner wall of the circular hole. The signal transmitter is electrically connected to the flow meter via a wire.

[0014] In a preferred embodiment, a main gear is mounted on the front of the generator, and second support seats are mounted on both sides of the top of the cylindrical plastic body. A drive shaft is mounted on the inner side of the second support seat, and a first drive gear is mounted on the rear side of the surface of the drive shaft, and the first drive gear meshes with the main gear.

[0015] In a preferred embodiment, a rack is installed on the inner wall of the fork-shaped support frame, and a second transmission gear is installed on the front side of the transmission shaft surface, and the second transmission gear meshes with the rack.

[0016] The bridge real-time height measurement device provided by this utility model has the following beneficial effects:

[0017] 1. By setting up a height measuring mechanism, the bridge clearance height can be accurately measured in real time by the circular float moving up and down with the waves when the river water level rises. The real-time wave height can be calculated by subtracting the real-time bridge clearance height from the bridge height base, and the corresponding bridge clearance height can be calculated, thus realizing high-precision real-time bridge height measurement.

[0018] 2. By setting up a support base, generator, and energy storage battery, the generator can be installed on the support base, which facilitates the transmission of the electricity generated by the generator to the energy storage battery and the storage of the electricity, thereby facilitating the provision of power to the equipment through the energy storage battery. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall installation state structure provided by the embodiment of this utility model;

[0021] Figure 2A schematic diagram of the main structure of the cylindrical plastic body provided for an embodiment of this utility model;

[0022] Figure 3 This is a partial structural schematic diagram of the cylindrical plastic shell provided for an embodiment of the present invention.

[0023] In the diagram: 1. Miniature laser transmitter; 2. Control circuit board; 3. Energy storage battery; 4. Laser receiving membrane; 5. Circular plastic partition; 6. Fork-shaped support frame; 7. Cylindrical plastic shell; 8. Cylindrical plastic body; 10. Ring-shaped float; 13. Flow meter; 14. Circular hole; 15. Support arm; 19. Rack; 20. Long straight rod; 21. Signal transmitter; 22. Signal receiving antenna; 23. Support rod; 24. Generator; 25. Main gear; 26. Drive shaft; 27. Second drive gear; 28. First drive gear; 29. ​​Second support base; 30. First support base. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Reference Figures 1-3 This utility model provides a technical solution: a real-time bridge height measurement device, including a support arm 15, a cylindrical plastic body 8 mounted on the top of the support arm 15 by fixing bolts, a ring-shaped float 10 sleeved on the surface of the cylindrical plastic body 8, a cylindrical plastic shell 7 mounted on the top of the ring-shaped float 10, a fork-shaped support frame 6 mounted on the inner wall of the cylindrical plastic shell 7, and a circular plastic partition 5 mounted on the top of the cylindrical plastic shell 7. It also includes a height measurement mechanism, which can support the cylindrical plastic shell 7 through the ring-shaped float 10, thereby facilitating the height measurement mechanism to accurately measure the real-time height of the bridge by measuring the distance between the bridge and the ring-shaped float 10.

[0026] Reference Figures 1-3In a preferred embodiment, a height measuring mechanism is provided, which includes a support rod 23 and a laser receiving membrane 4. The support rod 23 is installed on the top of the circular plastic partition 5, and a control circuit board 2 is installed on the top of the support rod 23. The laser receiving membrane 4 is installed on the top of the circular plastic partition 5, and a miniature laser emitter 1 is embedded in the top of the laser receiving membrane 4. The miniature laser emitter 1 is electrically connected to the control circuit board 2 through wires, so that the support rod 23 can support the control circuit board 2, thereby facilitating the miniature laser emitter 1 to accurately measure the real-time bridge clearance height when emitting a laser beam.

[0027] In addition, a first support base 30 is installed on the top of the cylindrical plastic body 8, and a generator 24 is installed on the top of the first support base 30. An energy storage battery 3 is installed on the top of the circular plastic partition 5. The generator 24 is electrically connected to the energy storage battery 3 through wires, and the energy storage battery 3 is electrically connected to the miniature laser emitter 1 through wires. This allows the generator 24 to supply power to the energy storage battery 3 when providing power, thereby facilitating the storage of power in the energy storage battery 3 and providing power to devices such as the miniature laser emitter 1. This avoids situations where the equipment consumes a lot of power, causes noise and light pollution, is not environmentally friendly, and has high operating costs.

[0028] Reference Figures 1-3 In a preferred embodiment, a main gear 25 is mounted on the front of the generator 24, and second support seats 29 are mounted on both sides of the top of the cylindrical plastic body 8. A drive shaft 26 is mounted on the inner side of the second support seat 29, and a first drive gear 28 is mounted on the rear side of the surface of the drive shaft 26, and the first drive gear 28 meshes with the main gear 25. A rack 19 is mounted on the inner wall of the fork-shaped support frame 6, and a second drive gear 27 is mounted on the front side of the surface of the drive shaft 26, and the second drive gear 27 meshes with the rack 19. When there are waves in the river, the power of the circular float 10 floating up and down drives the cylindrical plastic shell 7 to move up and down, which in turn drives the rack 19 to move up and down through the fork-shaped support frame 6. This, in turn, drives the first drive gear 28 to rotate through the second drive gear 27 and the drive shaft 26. The first drive gear 28 drives the main gear 25 to rotate, thereby converting mechanical energy into electrical energy through the generator 24, and then transmitting the electricity to the energy storage battery 3 for storage. That is, the device can be self-powered by utilizing wave energy.

[0029] Reference Figures 1-2In a preferred embodiment, a long straight rod 20 is installed on the top of the support arm 15, and a signal transmitter 21 is installed on the top of the long straight rod 20. A signal receiving antenna 22 is installed on the top of the signal transmitter 21. A circular hole 14 is opened on the right side of the front of the support arm 15. A flow velocity meter 13 is embedded in the inner wall of the circular hole 14. The signal transmitter 21 is electrically connected to the flow velocity meter 13 through a wire. When water flows through the circular hole 14, the flow velocity meter 13 can measure the wave velocity. The measurement result of the flow velocity meter 13 can be transmitted through the signal transmitter 21. Then, a real-time wave dynamic model can be built using an algorithm. By adopting the differential continuity idea, the wave height at the next moment can be accurately predicted and the corresponding bridge clearance height can be calculated using the real-time wave dynamic model, thus realizing high-precision real-time bridge height measurement.

[0030] Specifically, the working process or principle of this real-time bridge height measurement device is as follows: During use, the support arm 15 is installed at the bridge pier, and the long straight rod 20 and the cylindrical plastic body 8 are installed using fastening bolts. When the river is flowing, the circular float 10 is lifted, and a laser beam is emitted towards the bottom of the bridge via a miniature laser emitter 1 to measure the height of the water surface above the bridge. When waves are present in the river, the impact of the waves causes the circular float 10 to drift up and down. This drifting motion of the circular float 10 drives the cylindrical plastic shell 7 to move up and down. The cylindrical plastic shell 7, through the fork-shaped support frame 6, drives the rack 19 to move up and down, which in turn drives the second transmission gear 27 to rotate. The second transmission gear 27, through the transmission shaft 26, drives the first… When the transmission gear 28 rotates, it drives the main gear 25 to rotate, which enables the mechanical energy of the main gear 25 to be converted into electrical energy by the generator 24. The electricity can then be transmitted to the energy storage battery 3 for storage, thus providing power to the equipment. When the river water is flowing, the water can flow through the circular hole 14, which allows the flow velocity meter 13 to measure the flow velocity of the river water. Based on the wave height and the wave velocity measured by the flow velocity meter 13 at each moment, and transmitting the signal outward through the signal transmitter 21, a real-time wave dynamic model can be built using the algorithm. By adopting the differential continuity idea, the real-time wave dynamic model can accurately predict the wave height at the next moment and calculate the corresponding bridge clearance height, thus realizing high-precision real-time bridge height measurement.

[0031] It should be noted that the miniature laser emitter 1, control circuit board 2, energy storage battery 3, flow meter 13, signal transmitter 21, signal receiving antenna 22 and generator 24 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

Claims

1. A bridge real-time height measurement device, comprising a support arm (15), characterized in that; The top of the support arm (15) is fitted with a cylindrical plastic body (8) by fixing bolts. A ring-shaped float (10) is fitted on the surface of the cylindrical plastic body (8). A cylindrical plastic shell (7) is installed on the top of the ring-shaped float (10). A fork-shaped support frame (6) is installed on the inner wall of the cylindrical plastic shell (7). A circular plastic partition (5) is installed on the top of the cylindrical plastic shell (7). The support arm (15) also includes a height measuring mechanism. The height measuring mechanism includes: Support rod (23), the support rod (23) is installed on the top of the circular plastic partition (5), and a control circuit board (2) is installed on the top of the support rod (23); A laser receiving film (4) is installed on top of a circular plastic partition (5), and a miniature laser emitter (1) is embedded on the top of the laser receiving film (4).

2. The bridge real-time height measurement device according to claim 1, characterized in that, The top of the cylindrical plastic body (8) is fitted with a first support base (30), and the top of the first support base (30) is fitted with a generator (24).

3. The bridge real-time height measurement device according to claim 2, characterized in that, The circular plastic partition (5) is equipped with an energy storage battery (3) on top. The generator (24) is electrically connected to the energy storage battery (3) via wires, and the energy storage battery (3) is electrically connected to the micro laser emitter (1) via wires.

4. A bridge real-time height measuring device according to claim 3, characterized in that, The support arm (15) is equipped with a long straight rod (20) at the top, a signal transmitter (21) is installed at the top of the long straight rod (20), and a signal receiving antenna (22) is installed at the top of the signal transmitter (21).

5. A bridge real-time height measuring device according to claim 4, characterized in that, A circular hole (14) is provided on the right side of the front of the support arm (15). A flow meter (13) is embedded in the inner wall of the circular hole (14). The signal transmitter (21) is electrically connected to the flow meter (13) via a wire.

6. A bridge real-time height measuring device according to claim 5, characterized in that, The generator (24) has a main gear (25) mounted on its front side. The top of the cylindrical plastic body (8) has a second support seat (29) mounted on both sides. The inner side of the second support seat (29) has a drive shaft (26) mounted on it. The rear side of the surface of the drive shaft (26) has a first drive gear (28) mounted on it. The first drive gear (28) meshes with the main gear (25).

7. A bridge real-time height measurement device according to claim 6, characterized in that, The inner wall of the fork-shaped support frame (6) is equipped with a rack (19), and a second transmission gear (27) is installed on the front side of the surface of the transmission shaft (26), and the second transmission gear (27) meshes with the rack (19).