Safety monitoring device for inhibiting influence of bridge jitter on measurement precision

Abstract

The invention discloses a safety monitoring device for inhibiting influence of bridge jittering on measurement accuracy, which comprises a monitoring mechanism, a transverse buffer mechanism and a longitudinal buffer mechanism, and is characterized in that the monitoring mechanism comprises a column body arranged on a bridge, the column body is provided with a box body, the box body is externally and rotatably connected with a plurality of wind cups, and the wind cups are connected with the transverse buffer mechanism and the longitudinal buffer mechanism; a speed measuring assembly used for detecting the rotating speed of the wind cup is arranged in the box body. The transverse buffering mechanism is arranged on the column body and used for relieving transverse shaking on the box body. The transverse buffering mechanism is arranged on the column body, the longitudinal buffering mechanism is arranged on the column body, and the longitudinal buffering mechanism is used for slowing down longitudinal shaking on the box body, and the speed measurement assembly has the advantages that when a bridge shakes, the transverse buffering mechanism slowing down transverse shaking on the box body, and the longitudinal buffering mechanism slowing down longitudinal shaking on the box body, so that the measurement precision of the speed measurement assembly is improved.

Description

Technical Field

[0001] The invention relates to the field of bridge safety, and in particular to a safety monitoring device for suppressing bridge vibration from affecting measurement accuracy. Background Art

[0002] A bridge is a structure built for roads to cross natural or artificial obstacles. It is built on rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. A bridge is generally composed of a superstructure, a substructure, and ancillary structures. The superstructure mainly refers to the bridge span structure and the support system. The substructure includes abutments, piers, and foundations. Ancillary structures refer to bridgehead slabs, conical slope protection, revetments, diversion projects, etc. Bridges are divided into four basic systems according to the structural system: beam bridges, arch bridges, steel frame bridges, and cable-supported bridges.

[0003] After the bridge is built, it is necessary to monitor various indicators on the bridge in real time, such as wind monitoring devices, which include wind cup type and ultrasonic type. Taking the wind cup type as an example, when the wind blows the wind cup to rotate, the rotation speed of the wind cup is proportional to the wind speed. The circuit inside the sensor can convert the rotation of the wind cup into an electrical signal, and determine the wind speed by measuring the frequency or number of pulses of the electrical signal.

[0004] In the related art, a bridge safety monitoring device is proposed, including a bridge body, a mounting tube is installed on the bridge body, an operating box is fixed on the mounting tube, and a wind monitoring alarm device for bridge safety monitoring is provided on the operating box. The wind monitoring alarm device includes a rotating shaft rotatably connected to the operating box, a plurality of wind cups are fixed to one end of the top of the rotating shaft through a support rod, a plurality of fixed tubes are fixed on the side wall of the rotating shaft located inside the operating box, a first spring is fixed on the inner wall of the fixed tube, and an extrusion rod is slidably connected to each fixed tube.

[0005] Regarding the above-mentioned related technologies, there are the following defects: under the combined effects of wind, vehicles and water flow, the bridge will produce a certain degree of vibration, which in turn drives the operating box to vibrate, causing a certain interference to the rotation of the wind cup and affecting the measurement accuracy. Summary of the invention

[0006] The purpose of the present invention is to overcome the above technical deficiencies, propose a safety monitoring device that suppresses the influence of bridge vibration on measurement accuracy, and solve the technical problem in the prior art that the vibration of the bridge affects the measurement accuracy of the wind cup.

[0007] In order to achieve the above technical objectives, the technical solution of the present invention provides a safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy, comprising a monitoring mechanism, wherein the monitoring mechanism comprises a column arranged on the bridge, a box is arranged on the column, a plurality of wind cups are rotatably connected outside the box, and a speed measuring component for detecting the rotation speed of the wind cups is arranged inside the box; A transverse buffer mechanism, the transverse buffer mechanism is arranged on the column, and the transverse buffer mechanism is used to reduce the transverse shaking of the box; and A longitudinal buffer mechanism is provided on the column and is used to mitigate longitudinal vibration of the box body.

[0008] In some embodiments, the speed measuring component includes a rotating shaft rotatably connected to the housing, a plurality of the wind cup rings are arranged on the top of the rotating shaft, a sleeve rod is provided at the bottom of the rotating shaft, the sleeve rod extends radially along the rotating shaft, a sliding rod is slidably connected inside the sleeve rod, and a distance measuring component for detecting the sliding distance of the sliding rod is provided on the housing.

[0009] In some embodiments, the ranging assembly includes a first spring disposed in a sleeve rod, one end of the first spring is connected to a rotating shaft, and the other end of the first spring is connected to a sliding rod, the first spring causes the sliding rod to have a tendency to slide toward the rotating shaft, a first conductive plate is provided on an end of the sliding rod away from the first spring, a second conductive plate is provided in the box body, a battery and an alarm light are provided on the column, and the battery, the first conductive plate, the second conductive plate and the alarm light are electrically connected.

[0010] In some embodiments, the first conductive plate is spherical.

[0011] In some embodiments, the lateral buffer mechanism includes a first rod body arranged at the top of the column, the first rod body is connected to the column along the radial sliding direction of the column, the box body is arranged at the top of the first rod body, a first damper is hinged on the circumferential side of the first rod body, an end of the first damper away from the first rod body is hinged to the column, a second spring is sleeved on the first damper, and the second spring is in an original length state.

[0012] In some embodiments, the first damper includes a cylinder body hinged on a first rod body, a piston is slidably connected to the cylinder body, a piston rod is connected to the piston, the piston rod extends out of the cylinder body, the end of the piston rod is hinged on a column, and the second spring is sleeved on the piston rod.

[0013] In some embodiments, the cylinder body is provided with heat dissipation fins.

[0014] In some embodiments, the longitudinal buffer mechanism includes a second rod body arranged at the top of the first rod body, the second rod body is connected to the first rod body along the axial sliding direction of the first rod body, the box body is arranged at the top of the second rod body, the bottom of the second rod body is connected to a second damper, the bottom end of the second damper is connected to the top of the first rod body, the second damper is sleeved with a third spring, and the third spring is in an original length state.

[0015] In some embodiments, a rain shield is provided on the top of the box body, and the rain shield is arranged at an angle.

[0016] In some embodiments, a rain guide pipe is provided on the rain shield.

[0017] Compared with the prior art, the beneficial effects of the present invention include: when the bridge shakes, the lateral buffer mechanism slows down the lateral shaking of the box body, and the longitudinal buffer mechanism slows down the longitudinal shaking of the box body, thereby improving the measurement accuracy of the speed measuring component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the monitoring system provided by the present invention; Figure 2 is a cross-sectional view of the overall structure of the monitoring system provided by the present invention; Figure 3 This is a first-view overall structural cross-sectional view of the column provided by the present invention; Figure 4 It is a second perspective overall structural sectional view of the column provided by the present invention.

[0019] Description of reference numerals: 1. Monitoring mechanism; 11. Column; 12. Box; 13. Wind cup; 2. Speed ​​measuring assembly; 21. Rotating shaft; 22. Sleeve rod; 23. Sliding rod; 3. Transverse buffer mechanism; 31. First damper; 311. Cylinder; 312. Piston; 313. Piston rod; 314. Heat dissipation fin; 32. Second spring; 33. First rod body; 4. Longitudinal buffer mechanism; 41. Second rod body; 42. Third spring; 43. Second damper; 5. Distance measuring assembly; 51. First spring; 52. First conductive plate; 53. Second conductive plate; 54. Battery; 55. Warning light; 7. Rain shield; 71. Rain guide pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The present invention provides a safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy, and its structure is as follows: Figure 1 - Figure 4 As shown, it includes a monitoring mechanism 1, a transverse buffer mechanism 3 and a longitudinal buffer mechanism 4.

[0022] The monitoring mechanism 1 includes a column 11 arranged on the bridge, a box 12 is arranged on the column 11, a plurality of wind cups 13 are rotatably connected to the outside of the box 12, and a speed measuring component 2 for detecting the rotation speed of the wind cups 13 is arranged inside the box 12.

[0023] The transverse buffer mechanism 3 is disposed on the column 11 , and is used to mitigate the transverse shaking of the box body 12 .

[0024] The longitudinal buffer mechanism 4 is disposed on the column 11 , and is used to mitigate the longitudinal vibration of the box body 12 .

[0025] During use, when wind blows on the bridge, the wind cup 13 rotates, the speed measuring component 2 tests the rotation speed of the wind cup 13, the lateral buffer mechanism 3 slows down the lateral shaking of the box body 12, and the longitudinal buffer mechanism 4 slows down the longitudinal shaking of the box body 12.

[0026] In the present invention, when the bridge shakes, the lateral buffer mechanism 3 slows down the lateral shaking of the box body 12 , and the longitudinal buffer mechanism 4 slows down the longitudinal shaking of the box body 12 , thereby improving the measurement accuracy of the speed measuring component 2 .

[0027] To measure the rotation speed of the wind cup 13, refer to Figure 2 In a preferred embodiment, the speed measuring component 2 includes a rotating shaft 21 rotatably connected to the box body 12, a plurality of wind cups 13 are arranged on the top of the rotating shaft 21, a sleeve rod 22 is provided at the bottom of the rotating shaft 21, the sleeve rod 22 extends along the radial direction of the rotating shaft 21, a sliding rod 23 is slidably connected inside the sleeve rod 22, and a distance measuring component 5 for detecting the sliding distance of the sliding rod 23 is provided on the box body 12.

[0028] During use, when wind blows on the bridge, the wind cup 13 drives the rotating shaft 21 to rotate. Under the action of centrifugal force, the sliding rod 23 slides along the sleeve rod 22. The greater the wind force, the longer the sliding distance of the sliding rod 23. The distance measuring component 5 tests the sliding distance of the sliding rod 23, thereby measuring the rotation speed of the wind cup 13.

[0029] To measure the sliding distance of the slide bar 23, refer to Figure 2 In a preferred embodiment, the ranging component 5 includes a first spring 51 arranged in the sleeve rod 22, one end of the first spring 51 is connected to the rotating shaft 21, and the other end of the first spring 51 is connected to the slide bar 23, the first spring 51 causes the slide bar 23 to have a tendency to slide toward the rotating shaft 21, and a first conductive plate 52 is provided at one end of the slide bar 23 away from the first spring 51, a second conductive plate 53 is provided in the box body 12, and a controller, a solar panel, a battery 54, and an alarm light 55 are provided on the column 11, wherein the controller, the solar panel, the battery 54, the first conductive plate 52, the second conductive plate 53 and the alarm light 55 are electrically connected.

[0030] When in use, the solar panel absorbs solar energy, converts the solar energy into electrical energy and stores it in the battery 54, which is energy-saving and environmentally friendly. When the sleeve rod 22 is in a stationary state, under the action of the restoring force of the first spring 51, the slide bar 23 is in a stationary state. When the wind blows, under the action of centrifugal force, the slide bar 23 slides in the direction away from the rotating shaft 21, and the slide bar 23 drives the first conductive plate 52 to slide. When the first conductive plate 52 contacts the second conductive plate 53, the circuit is connected. Under the control of the controller, the alarm light 55 alarms. As the rotating shaft 21 rotates, the first conductive plate 52 repeatedly contacts the second conductive plate 53, and the alarm light 55 repeatedly alarms, indicating that the wind speed is too high.

[0031] In order to reduce the wear of the first conductive plate 52 and the second conductive plate 53, please refer to Figure 2 In a preferred embodiment, the first conductive plate 52 is spherical.

[0032] When in use, the first conductive plate 52 and the second conductive plate 53 change from surface contact to line contact, which reduces the contact area between the first conductive plate 52 and the second conductive plate 53, slows down the wear of the first conductive plate 52 and the second conductive plate 53, and increases the service life of the first conductive plate 52 and the second conductive plate 53.

[0033] To slow down the lateral vibration of the box 12, please refer to Figure 3 In a preferred embodiment, the lateral buffer mechanism 3 includes a first rod 33 arranged at the top of the column 11, the first rod 33 is connected to the column 11 along the radial sliding direction of the column 11, the box 12 is arranged on the top of the first rod 33, and the circumferential side of the first rod 33 is hinged with a first damper 31, one end of the first damper 31 away from the first rod 33 is hinged to the column 11, and the first damper 31 is sleeved with a second spring 32, and the second spring 32 is in an original length state.

[0034] When the box body 12 is subjected to a lateral external force, the shaking of the box body 12 will be transmitted to the first rod body 33. Since the first rod body 33 is connected to the column body 11 along the radial sliding of the column body 11, the first rod body 33 will slide relative to the column body 11 under the action of the lateral force. During the sliding process of the first rod body 33, the first damper 31 hinged on its circumferential side will be stretched or compressed. When the first damper 31 is stretched or compressed, a damping force will be generated to resist the movement of the first rod body 33, thereby slowing down the lateral shaking of the box body 12. At the same time, the second spring 32 sleeved on the first damper 31 will also deform as the first damper 31 expands and contracts. During the deformation process of the second spring 32, energy will be stored and released, further buffering and absorbing the lateral impact force, making the lateral movement of the box body 12 more stable, and reducing the impact of severe shaking and vibration on the box body 12.

[0035] To slow down the lateral vibration of the box 12, please refer to Figure 3 In a preferred embodiment, the first damper 31 includes a cylinder body 311 hinged on the first rod body 33, a piston 312 is slidably connected in the cylinder body 311, a piston 312 rod is connected to the piston 312, the piston 312 rod extends to the outside of the cylinder body 311, the end of the piston 312 rod is hinged on the column 11, and the second spring 32 is sleeved on the piston 312 rod.

[0036] When in use, when the first rod 33 is subjected to a lateral force and slides relative to the column 11, the cylinder 311 hinged thereto is driven to move. The movement of the cylinder 311 causes the internal piston 312 to slide relative to the cylinder 311. The resistance between the cylinder 311 and the piston 312 will slow down the movement of the piston 312, thereby suppressing the telescopic movement of the piston 312 rod, generating a damping effect, consuming a portion of the energy, and reducing the impact of the lateral impact force on the system. At the same time, the second spring 32 sleeved on the piston 312 rod will be compressed or stretched as the piston 312 rod expands and contracts. In this process, the second spring 32 stores and releases energy, further assisting in slowing down the lateral movement of the first rod 33, enhancing the buffering effect, and enabling the lateral shaking of the box 12 to stabilize more quickly.

[0037] To reduce the heat generated by the friction of piston 312, please refer to Figure 4 In a preferred embodiment, the cylinder body 311 is provided with heat dissipation fins 314 .

[0038] When in use, when the first damper 31 is in operation, the relative movement between the piston 312 and the cylinder 311 generates heat, causing the temperature inside the cylinder 311 to rise. The heat dissipation fins 314 provided on the cylinder 311 increase the contact area between the cylinder 311 and the surrounding air. The air can more fully exchange heat with the heat dissipation fins 314, thereby quickly dissipating the heat generated inside the cylinder 311. This prolongs the service life of the first damper 31 and ensures that it can continue to effectively play a role in buffering and shock absorbing.

[0039] To slow down the longitudinal vibration of the box 1212, please refer to Figure 2 In a preferred embodiment, the longitudinal buffer mechanism 4 includes a second rod 41 arranged at the top of the first rod 33, the second rod 41 is slidably connected to the first rod 33 along the axial direction of the first rod 33, the box 12 is arranged at the top of the second rod 41, and the bottom of the second rod 41 is connected to a second damper 43, the bottom end of the second damper 43 is connected to the top of the first rod 33, and the second damper 43 is sleeved with a third spring 42, and the third spring 42 is in an original length state.

[0040] During use, when the box body 12 is subjected to a longitudinal external force, the up and down movement of the box body 12 drives the second rod body 41 to slide axially relative to the first rod body 33. During the sliding process of the second rod body 41, the second damper 43 connected to the bottom thereof will be stretched or compressed. The damping structure inside the second damper 43 will generate a damping force to resist the movement of the second rod body 41, thereby slowing down the longitudinal shaking of the box body 12. At the same time, the third spring 42 sleeved on the second damper 43 will deform as the second damper 43 expands and contracts. The deformation process of the spring can absorb and buffer the longitudinal impact force, further reducing the longitudinal vibration of the box body 12. Through the synergistic effect of the second damper 43 and the third spring 42, the movement of the box body 12 in the longitudinal direction is smoother, reducing the impact of violent up and down shaking on the box body 12.

[0041] To protect from rain, please refer to Figure 2 In a preferred embodiment, a rain shield 7 is provided on the top of the box body 12, and the rain shield 7 is inclined at forty-five degrees.

[0042] During use, when it rains, the rain shield 7 shields the rain, thereby reducing the possibility of the wind cup 13 being washed by the rain and improving the measurement accuracy of the speed measuring component 2.

[0043] In order to guide the rainwater on the rain shield 7 to the ground, please refer to Figure 2 In a preferred embodiment, a rain guide pipe 71 is fixedly connected to the rain shield 7.

[0044] When in use, when rain falls onto the rain shield 7 , it quickly flows to the ground along the rain guide pipe, reducing the possibility of the wind cup 13 being washed by rain and improving the measurement accuracy of the speed measuring component 2 .

[0045] In order to better understand the present invention, the following Figure 1 - Figure 4 The working principle of the technical solution of the safety monitoring device for suppressing the influence of bridge shaking on the measurement accuracy of the present invention is described in detail: when the wind blows on the bridge, the wind cup 13 rotates, the speed measuring component 2 tests the rotation speed of the wind cup 13, the lateral buffer mechanism 3 slows down the lateral shaking of the box body 12, and the longitudinal buffer mechanism 4 slows down the longitudinal shaking of the box body 12.

[0046] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy, characterized in that: include: A monitoring mechanism, the monitoring mechanism comprising a column arranged on the bridge, the column being provided with a box, a plurality of wind cups being rotatably connected outside the box, and a speed measuring component for detecting the rotation speed of the wind cups being provided inside the box; A transverse buffer mechanism, the transverse buffer mechanism is arranged on the column, and the transverse buffer mechanism is used to reduce the transverse shaking of the box; and A longitudinal buffer mechanism is provided on the column and is used to mitigate longitudinal vibration of the box body.

2. A safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 1, characterized in that: The speed measuring component includes a rotating shaft rotatably connected to the box body, a plurality of wind cup rings are arranged on the top of the rotating shaft, a sleeve rod is provided at the bottom of the rotating shaft, the sleeve rod extends radially along the rotating shaft, a sliding rod is slidably connected inside the sleeve rod, and a distance measuring component for detecting the sliding distance of the sliding rod is provided on the box body.

3. The safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 2 is characterized in that: The ranging assembly includes a first spring arranged in the sleeve rod, one end of the first spring is connected to the rotating shaft, and the other end of the first spring is connected to the sliding rod. The first spring causes the sliding rod to have a tendency to slide toward the rotating shaft. A first conductive plate is provided on the end of the sliding rod away from the first spring, a second conductive plate is provided in the box body, a battery and an alarm light are provided on the column, and the battery, the first conductive plate, the second conductive plate and the alarm light are electrically connected.

4. The safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 3 is characterized in that: The first conductive plate is spherical.

5. The safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 1 is characterized in that: The lateral buffer mechanism includes a first rod body arranged at the top of the column, the first rod body is connected to the column along the radial sliding direction of the column, the box body is arranged at the top of the first rod body, a first damper is hinged on the circumferential side of the first rod body, an end of the first damper away from the first rod body is hinged on the column, a second spring is sleeved on the first damper, and the second spring is in an original length state.

6. The safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 5 is characterized in that: The first damper includes a cylinder body hinged on a first rod body, a piston is slidably connected in the cylinder body, a piston rod is connected to the piston, the piston rod extends out of the cylinder body, an end of the piston rod is hinged on a column, and the second spring is sleeved on the piston rod.

7. The safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 6 is characterized in that: The cylinder body is provided with heat dissipation fins.

8. The safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 5 is characterized in that: The longitudinal buffer mechanism includes a second rod body arranged at the top of the first rod body, the second rod body is connected to the first rod body along the axial direction of the first rod body, the box body is arranged at the top of the second rod body, the bottom of the second rod body is connected to a second damper, the bottom end of the second damper is connected to the top of the first rod body, and a third spring is sleeved on the second damper, and the third spring is in an original length state.

9. The safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 1 is characterized in that: A rain shield is provided on the top of the box body, and the rain shield is arranged in an inclined manner.

10. The safety monitoring device for suppressing the influence of bridge vibration on measurement accuracy according to claim 9, characterized in that: A rain guide pipe is arranged on the rain shield.

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