Sea-crossing bridge displacement audible and visual alarm device

Abstract

The utility model relates to the technical field of bridge detection devices, and provides a sea-crossing bridge displacement audible and visual alarm device which comprises a monitoring mechanism and an alarm mechanism. The monitoring mechanism comprises a laser assembly, a reflecting mirror and a receiving assembly, the laser assembly is used for emitting monitoring laser, a light splitting structure is arranged on the laser assembly and divides the monitoring laser into a first light beam and a second light beam, the first light beam faces the surface of a measured bridge, the second light beam faces the reflecting mirror, and the receiving assembly is arranged on the reflecting mirror. The receiving assembly is used for receiving reflected light of the first light beam and reflected light of the second light beam; a controller and a sound-light alarm module are arranged in the alarm mechanism, one end of the controller is in communication connection with the receiving module, and the other end of the controller is electrically connected with the sound-light alarm module; the utility model solves the problem that the safety state of the bridge is difficult to master in real time by manual inspection warning, and has the advantages of simple structure and low manufacturing cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge detection device technical field, specifically, it relates to a kind of sea-crossing bridge displacement acousto-optic warning device. BACKGROUND

[0002] As an important traffic hub, with the passage of time, bridge structure will be affected by environment, climate and traffic flow and multiple factors, gradually produce aging and damage. In order to discover and prevent potential safety hazards in time, bridge early warning system emerges as the times require. At present, the monitoring of sea-crossing bridge displacement mainly adopts artificial inspection mode, vernier and scale are arranged on beam body and pier respectively, the displacement amount indicated by vernier on scale is observed regularly, when the displacement amount exceeds the displacement amount range specified in maintenance regulation, adjust beam deviation work is arranged. This artificial inspection mode has heavy workload, low work efficiency, long inspection interval, and it is difficult to master the safety state of bridge in real time, once collision, earthquake and other situations occur, it is difficult to find bridge transverse and longitudinal deviation amount through artificial, it is difficult to master bridge operation and health condition in real time, which is not conducive to providing strong navigation guarantee for passing ships. SUMMARY

[0003] Therefore, in order to solve the problem that artificial inspection alarm is difficult to master the safety state of bridge in real time, the utility model provides a kind of sea-crossing bridge displacement acousto-optic warning device, and the specific technical scheme is as follows:

[0004] A kind of sea-crossing bridge displacement acousto-optic warning device, including monitoring mechanism and warning mechanism;The monitoring mechanism includes laser assembly, reflecting mirror and receiving component, the laser assembly is used to emit monitoring laser, the laser assembly is provided with light splitting structure, the light splitting structure divides the monitoring laser into first light beam and second light beam, the first light beam is directed to bridge surface, the second light beam is directed to the reflecting mirror, the receiving component is used to receive the reflection of the first light beam and the reflection of the second light beam;The warning mechanism is provided with controller and acousto-optic alarm module, one end of the controller is connected with the receiving component, the other end of the controller is electrically connected with the acousto-optic alarm module.

[0005] The above-mentioned sea-crossing bridge displacement acousto-optic warning device is provided with light splitting structure, so that the same monitoring laser is processed by light splitting to form two coherent lights, one of which is directly irradiated on the measured bridge surface, and the other is irradiated on the reflecting mirror;By being provided with receiving component, when the light path difference caused by the displacement variation of the measured bridge from the surface changes, the interference fringes formed are collected, which helps to monitor the key micro-variable parameters of bridge in real time, dynamically master the health condition of bridge, and solve the problem that artificial inspection alarm is difficult to master the safety state of bridge in real time;When the bridge displacement from the surface triggers threshold value, the controller sends instruction to acousto-optic alarm module, so as to realize the alarm of acousto-optic alarm module.

[0006] Further, the laser assembly comprises a laser, a beam expander and a collimator arranged in sequence, the laser is used for emitting a laser beam, the laser beam passes through the beam expander and the collimator in sequence and forms the monitoring laser.

[0007] Further, the light splitting structure is a light splitter, the light splitter splits the monitoring laser into the first light beam and the second light beam, and the reflected light of the first light beam and the reflected light of the second light beam are reflected to the receiving assembly through the light splitter.

[0008] Further, the receiving assembly comprises a focusing lens and a receiving module arranged in sequence, the reflected light of the first light beam and the reflected light of the second light beam pass through the focusing lens and form monitoring light spots respectively, and the receiving module receives the monitoring light spots and forms interference fringes.

[0009] Further, an electronic camera is arranged on the receiving module and used for collecting the monitoring light spots.

[0010] Further, the alarm mechanism comprises a base, a sealing cover and a protection frame, a plurality of dismounting sheets are fixedly connected to the bottom of the base, threaded holes are formed in the dismounting sheets, the sealing cover is embedded on the base, and the protection frame is detachably arranged on the top of the base and covers the outside of the sealing cover.

[0011] Further, a wire inlet is formed in the side wall of the base.

[0012] Further, a cavity is formed in the sealing cover, and the controller, the sound-light alarm module and the voice alarm structure are arranged in the cavity.

[0013] Further, the sound-light alarm module comprises a sound-light alarm structure, a buzzer and a warning light, the buzzer is electrically connected to the controller through the sound-light alarm structure and the voice alarm structure respectively, and the warning light is electrically connected to the controller through the sound-light alarm structure.

[0014] Further, a wireless structure is arranged below the outside of the sealing cover, and the wireless structure is in communication connection with the controller. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of a monitoring mechanism of a cross-sea bridge displacement sound-light alarm device according to an embodiment of the present application.

[0016] Figure 2 is a structural schematic view of an alarm mechanism of a cross-sea bridge displacement sound-light alarm device according to an embodiment of the present application.

[0017] Figure 3 is the internal structure diagram of the sealing cover of the sea-crossing bridge displacement acousto-optic warning device according to an embodiment of the present application.

[0018] BRIEF DESCRIPTION OF DRAWINGS

[0019] 1, laser assembly; 11, laser; 12, beam expander; 13, collimator; 2, reflector; 3, receiving assembly; 31, focusing lens; 32, receiving module; 4, light splitting structure; 5, warning mechanism; 51, base; 52, sealing cover; 53, protection frame; 54, dismounting piece; 6, controller; 7, acousto-optic alarm module; 71, acousto-optic alarm structure; 72, buzzer; 73, warning light; 8, voice alarm structure; 9, wireless structure; 10, measured bridge. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the protection scope of the present application.

[0021] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the terms "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] The "first", "second" in the present application do not represent the specific number and order, but only for the name of the distinction.

[0024] As Figures 1-3As shown, the utility model discloses a kind of displacement acousto-optic warning devices of sea-crossing bridge in an embodiment of the utility model, including monitoring mechanism and alarm mechanism 5;Monitoring mechanism includes laser assembly 1, reflector 2 and receiving assembly 3, laser assembly 1 is used to emit monitoring laser, laser assembly 1 is provided with light splitting structure 4, light splitting structure 4 divides monitoring laser into first light beam and second light beam, first light beam is towards the surface of measured bridge 10, second light beam is towards reflector 2, receiving assembly 3 is used to receive the reflection of first light beam and the reflection of second light beam;Alarm mechanism 5 is provided with controller 6 and acousto-optic alarm module 7 in it, one end of controller 6 is connected with receiving assembly 3, and the other end of controller 6 is electrically connected with acousto-optic alarm module 7.

[0025] The above-mentioned displacement acousto-optic warning device of sea-crossing bridge, by being provided with light splitting structure 4, same monitoring laser is formed two coherent lights after light splitting, one of which is directly irradiated on the surface of measured bridge 10, and the other is irradiated on reflector;By being provided with receiving assembly 3, interference fringes are formed when the optical path difference changes caused by the displacement variation of measured bridge 10 from surface, which helps to monitor the key micro-variable parameters of bridge in real time, dynamically grasps the health condition of bridge, solves the problem that artificial inspection alarm is difficult to grasp the safety state of bridge in real time;By being provided with controller 6, when the displacement of bridge from surface triggers threshold value, instruction is sent to acousto-optic alarm module 7, so that the alarm of acousto-optic alarm module 7 is realized.

[0026] As shown in the drawings, Figure 1 In one embodiment, laser assembly 1 includes laser 11, beam expander 12 and collimator 13 arranged in sequence, laser 11 is used to emit laser beam, and laser beam passes through beam expander 12 and collimator 13 in sequence and forms monitoring laser. Preferably, laser 11 is helium-neon laser 11.

[0027] As shown in the drawings, Figure 1 In one embodiment, light splitting structure 4 is a beam splitter, which divides monitoring laser into first light beam and second light beam, and the reflection of first light beam and the reflection of second light beam are both reflected to receiving assembly 3 via the beam splitter. The two returned lights are highly coherent because they are split from the same monitoring laser.

[0028] Specifically, the beam splitter has half-reflection and half-transmission effect.

[0029] As shown in the drawings, Figure 1 In one embodiment, receiving assembly 3 includes focusing lens 31 and receiving module 32 arranged in sequence, and the reflection of first light beam and the reflection of second light beam pass through focusing lens 31 and form monitoring light spots respectively, and receiving module 32 receives monitoring light spots and forms interference fringes.

[0030] In one of the embodiments, the receiving module 32 is provided with an electronic camera for collecting the monitoring light spot. Preferably, the electronic camera is a CCD camera.

[0031] As shown in the drawings, Figure 2 In one of the embodiments, the alarm mechanism 5 comprises a base 51, a sealing cover 52 and a protective frame 53. The base 51 is fixedly connected with a plurality of dismounting pieces 54 at the bottom, the dismounting pieces 54 are provided with threaded holes, the sealing cover 52 is embedded on the base 51, and the protective frame 53 is detachably arranged on the top of the base 51 and covers the outside of the sealing cover 52. In this way, the installation and dismounting of the base 51 are facilitated, thereby facilitating the repair and replacement of the alarm mechanism 5. The protective frame 53 can prevent accidental damage to the sealing cover 52 and also shield wind, sand, rain and snow and other external factors to a certain extent.

[0032] In one of the embodiments, the base 51 is provided with a wire inlet on the side wall. The wire inlet facilitates the wiring and incoming and outgoing of the device or power supply.

[0033] As shown in the drawings, Figure 3 In one of the embodiments, the sealing cover 52 is formed with a cavity, and the cavity is provided with a controller 6, an audible and light alarm module 7 and a voice alarm structure 8.

[0034] As shown in the drawings, Figure 3 In one of the embodiments, the audible and light alarm module 7 comprises an audible and light alarm structure 71, a buzzer 72 and a warning light 73. The buzzer 72 is electrically connected with the controller 6 through the audible and light alarm structure 71 and the voice alarm structure 8, respectively. The warning light 73 is electrically connected with the controller 6 through the audible and light alarm structure 71. The alarm mechanism 5 not only has light warning function but also has voice alarm function.

[0035] As shown in the drawings, Figure 3 In one of the embodiments, the sealing cover 52 is provided with a wireless structure 9 below the outside. The wireless structure 9 is in communication connection with the controller 6. The wireless structure 9 facilitates the remote wireless control of the controller 6. The wireless receiving is a prior art and will not be described in detail here.

[0036] Working principle:

[0037] The monitoring laser emitted by the laser 11, through the beam expander 12 and the collimator 13, forms the light spot amplified collimated light, and then through the beam splitter, the first light beam and the second light beam are formed, the first light beam irradiates to the surface of the measured bridge 10 and returns, and the second light beam irradiates to the mirror 2 and returns. Two coherent light beams pass through the focusing lens 31 to form a stable light spot on the receiving module 32 to form an interference pattern with light and shade, and each circle of interference fringes on the interference pattern is a series of equal displacement lines. When the bridge measurement reference surface is subjected to micro-off-surface displacement caused by external factors, the interference fringes change, thereby realizing nanoscale measurement. When the interference fringes change and reach the threshold value, the controller 6 controls the sound-light alarm structure 71 and the voice alarm structure 8 in the alarm mechanism 5 to issue an alarm, which helps to monitor the key micro-variation parameters of the bridge in real time and dynamically master the health status of the bridge.

[0038] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that they are within the scope of the present application.

[0039] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A displacement acousto-optic warning device across a sea bridge, characterized by, The utility model relates to a bridge safety monitoring device, including: Monitoring mechanism, the monitoring mechanism includes laser assembly, mirror and receiving assembly, the laser assembly is used for emitting monitoring laser, the laser assembly is provided with the light splitting structure, the light splitting structure divides the monitoring laser into first light beam and second light beam, the first light beam is to the measured bridge surface, the second light beam is to the mirror, the receiving assembly is used for receiving the reflection of first light beam and the reflection of second light beam; Alarm mechanism, the alarm mechanism is provided with controller and sound-light alarm module, one end of the controller is connected with receiving assembly, the other end of the controller is electrically connected with sound-light alarm module.

2. The optical displacement alarm system for sea-crossing bridge according to claim 1, wherein The laser assembly includes laser, beam expander and collimating mirror arranged in sequence, the laser is used for emitting laser beam, the laser beam passes through the beam expander and collimating mirror in sequence and forms the monitoring laser.

3. The optical alarm system for sea-crossing bridge according to claim 1, wherein The light splitting structure is a beam splitter, the beam splitter divides the monitoring laser into the first light beam and the second light beam, the reflection of first light beam and the reflection of second light beam are reflected to the receiving assembly via the beam splitter.

4. The across-sea bridge displacement acousto-optic warning device according to claim 3, characterized in that, The receiving assembly includes focusing lens and receiving module arranged in sequence, the reflection of first light beam and the reflection of second light beam pass through the focusing lens and form monitoring light spot respectively, the receiving module receives the monitoring light spot and forms interference fringe.

5. The optical displacement alarm system for sea-crossing bridge according to claim 4, wherein, The receiving module is provided with an electronic camera for collecting the monitoring light spot.

6. The optical alarm system for sea-crossing bridge according to claim 1, wherein, The alarm mechanism includes base, sealing cover and protection frame, the bottom of the base is fixedly connected with a plurality of dismounting sheets, threaded holes are formed in the dismounting sheets, the sealing cover is embedded on the base, and the protection frame is detachably arranged on the top of the base and covers the outside of the sealing cover.

7. The across-sea bridge displacement acousto-optic warning device according to claim 6, characterized in that, A wire inlet is formed in the side wall of the base.

8. The across-sea bridge displacement acousto-optic warning device according to claim 6, characterized in that, A cavity is formed in the sealing cover, and the controller, the sound-light alarm module and a voice alarm structure are arranged in the cavity.

9. The across-sea bridge displacement acousto-optic warning device according to claim 8, characterized in that, The sound-light alarm module includes a sound-light alarm structure, a buzzer and a warning light, the buzzer is electrically connected to the controller through the sound-light alarm structure and the voice alarm structure respectively, and the warning light is electrically connected to the controller through the sound-light alarm structure.

10. The across-sea bridge displacement acousto-optic warning device according to claim 6, characterized in that, A wireless structure is arranged below the outside of the sealing cover and is in communication with the controller.

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