A bridge inclination monitoring device

Abstract

The utility model relates to the technical field of bridge inclination monitoring, and specifically to a bridge inclination monitoring device, including a shell, a rotating shaft installed in the shell, a suspension column fixedly installed on the rotating shaft, the suspension column is vertically suspended, grooves are respectively opened on the two opposite sides of the suspension column in the horizontal direction, a plurality of micro switches are arranged in the groove, and the plurality of micro switches are arranged in the horizontal direction and the arrangement direction is perpendicular to the axial direction of the rotating shaft; two strikers are installed on the inner wall of the shell, and the two strikers are respectively distributed on the two opposite sides of the suspension column in the horizontal direction, the end of the striker faces the notch position of the groove, and the end of the striker is located on the arrangement path of the contacts in the micro switch; each micro switch is electrically connected to an alarm device. The present application can continuously and stably send out an alarm when the bridge tilts beyond the design limit, and can reflect the tilt degree of the bridge, and is not affected by electromagnetic and ordinary vibrations of the bridge.

Description

Technical Field

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

[0002] In engineering construction, the control of bridge verticality is crucial to ensure the overall stability of engineering construction. In the monitoring of bridge safety, the monitoring of bridge inclination is an important evaluation indicator. The inclination of a bridge can reflect the safety of the bridge structure and the durability of the bridge, and help engineers understand the actual stress state and structural health of the bridge, especially the accumulated deformation after long-term service, which is of great significance for evaluating the remaining service life of the bridge and predicting potential damage.

[0003] At present, when monitoring the inclination of a bridge, inclination sensors are usually used. By arranging inclination sensors on bridge main beams, cables and other components, the deflection changes of the bridge under various loads can be measured. By embedding the inclination sensors into the bridge monitoring system, real-time online monitoring of key parts of the bridge can be achieved. Once the inclination change of the bridge exceeds the preset safety threshold, the system will automatically trigger an alarm and notify the management personnel in real time to conduct on-site inspections or take necessary traffic restrictions or closure measures, thereby effectively preventing serious safety accidents such as bridge collapse that may be caused by excessive deformation.

[0004] However, the existing inclination sensors use more electrical structures, and the monitoring accuracy will be affected by the magnetic field, temperature, and humidity. Therefore, when affected by bad weather, the existing inclination sensors have weak anti-interference capabilities and cannot continuously and stably output effective inclination information, resulting in high maintenance costs. Moreover, when the bridge is monitored to exceed the normal inclination, the existing inclination sensors cannot intuitively and quickly reflect the severity of the bridge's tilt. Utility Model Content

[0005] In order to solve the technical problems that the existing inclination sensors adopt more electrical structures, the monitoring accuracy will be affected by the magnetic field, temperature and humidity, and when affected by bad weather, the existing inclination sensors have weak anti-interference ability, cannot continuously and stably output effective inclination information, and have high maintenance costs; when the existing inclination sensors monitor that the bridge inclination exceeds the normal inclination, they cannot intuitively and quickly reflect the severity of the bridge inclination, the utility model provides a bridge inclination monitoring device.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A bridge inclination monitoring device includes a shell, a rotating shaft is installed in the shell, the rotating shaft is arranged horizontally, a suspension column is fixedly installed on the rotating shaft, the suspension column is vertically suspended, grooves are respectively opened on the two opposite sides of the suspension column in the horizontal direction, a plurality of micro switches are arranged in the groove, and the arrangement direction of the plurality of micro switches is arranged perpendicular to the axial direction of the rotating shaft; two strikers are installed on the inner wall of the shell, the two strikers are respectively distributed on the two opposite sides of the suspension column in the horizontal direction, the end of the striker faces the notch position of the groove, and the end of the striker is located on the arrangement path of the contacts in the micro switch; each micro switch is electrically connected to an alarm device. The present application can sound an alarm when the bridge exceeds the normal inclination degree, and can reflect the inclination degree of the bridge. The present application is not affected by electromagnetic and ordinary vibrations of the bridge, and can continuously and stably send out an alarm signal when the bridge inclination exceeds the design limit.

[0008] As a preferred implementation of a bridge inclination monitoring device, a mounting column is installed on the top of the inner wall of the housing, and a rotating shaft hole is opened on the mounting column, and the rotating shaft hole and the rotating shaft are matched with each other. When the bridge tilts, the suspension column remains in a vertical downward hanging state under the action of gravity, and the rotating shaft can flexibly rotate in the rotating shaft hole.

[0009] As a preferred implementation method of a bridge inclination monitoring device, the shape of the shaft hole is an isosceles triangle, and the top angle of the shaft hole is set downward; the cross-section of the shaft is an isosceles triangle with an arc-shaped top angle, and the arc-shaped top angle of the shaft is set downward; the top angle of the isosceles triangle in the cross-section of the shaft is smaller than the top angle of the shaft hole.

[0010] As a preferred implementation of a bridge inclination monitoring device, the shape of the shaft hole is circular and the shaft is a cylinder.

[0011] As a preferred implementation of a bridge inclination monitoring device, the housing is provided with a screw seat, the screw seat is provided with a screw hole, the screw passes through the screw hole and is connected to the bridge, and the screw is threadedly connected to the screw hole, so that the housing can be easily fixed to the bridge, the connection is reliable, and the cost is low.

[0012] As a preferred implementation of a bridge inclination monitoring device, the screw seat is located on the top of the housing.

[0013] As a preferred implementation of a bridge inclination monitoring device, the grooves on two opposite sides of the suspension column in the horizontal direction have different horizontal heights, and the depth of the groove is greater than half of the thickness of the suspension column in the groove depth direction, so that more micro switches can be easily set.

[0014] As a preferred implementation of a bridge inclination monitoring device, the grooves are provided on two sides of the suspension column perpendicular to the axial direction of the shaft, and the grooves penetrate the suspension column along the axial direction of the shaft, providing sufficient space for the striker.

[0015] As a preferred implementation of a bridge inclination monitoring device, the alarm device includes a buzzer alarm and / or a warning light. The alarm signal is simple and intuitive, and is easy to feel.

[0016] As a preferred implementation of a bridge inclination monitoring device, the housing and the suspension column are both symmetrical structures, and the two strikers are symmetrically distributed about the suspension column.

[0017] The beneficial effects of the utility model include:

[0018] The utility model can send out an alarm when the bridge exceeds the normal tilt degree, and can reflect the tilt degree of the bridge. The utility model is not affected by electromagnetic and ordinary vibrations of the bridge, and can continuously and stably send out an alarm signal when the bridge tilts beyond the design limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 The present invention is a schematic diagram of the internal structure of a bridge inclination monitoring device according to a specific implementation method of the present invention.

[0021] List of parts and reference numerals:

[0022] 1. Housing; 2. Shaft; 3. Suspension column; 4. Groove; 5. Micro switch; 6. Strike pin; 7. Mounting column; 8. Shaft hole; 9. Screw seat; 10. Screw hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] Reference Figure 1This embodiment proposes a bridge inclination monitoring device, including a housing 1, a screw seat 9 is provided on the top of the housing 1, a screw hole 10 is provided on the screw seat 9, the screw is connected to the bridge after passing through the screw hole 10, and the screw is threadedly connected to the screw hole 10. The housing 1 is a symmetrical structure, a mounting column 7 is installed on the top of the inner wall of the housing 1, and the mounting column 7 is provided with a shaft hole 8, the shaft hole 8 is horizontally arranged, the shaft hole 8 is in the shape of an isosceles triangle, the top angle of the shaft hole 8 is downwardly arranged, a shaft 2 is arranged in the shaft hole 8, the shaft 2 is horizontally arranged, the cross section of the shaft 2 is an isosceles triangle with an arc-shaped top angle, the arc-shaped top angle of the shaft 2 is downwardly arranged, the top angle angle of the isosceles triangle in the cross section of the shaft 2 is smaller than the top angle angle of the shaft hole 8, the arc of the top angle of the shaft 2 makes the shaft 2 have no deflection in the natural state, and can deflect and shake in the shaft hole 8 when the bridge vibrates, and gradually return to normal when the bridge returns to normal. A suspension 3 is fixedly mounted on the rotating shaft 2. The suspension 3 is a symmetrical structure. The suspension 3 and the housing 1 are on the same central axis. The suspension 3 is suspended vertically downward. Grooves 4 are respectively provided on two opposite sides of the suspension 3 in the horizontal direction. Specifically, the grooves 4 are provided on two sides of the suspension 3 perpendicular to the axial direction of the rotating shaft 2. The grooves 4 penetrate the suspension 3 in the axial direction of the rotating shaft 2. The horizontal heights of the two grooves 4 are different. The depth of the grooves 4 is greater than half of the thickness of the suspension 3 in the depth direction of the grooves 4. A plurality of micro switches 5 are arranged in the horizontal direction. The arrangement direction of the plurality of micro switches 5 is perpendicular to the axial direction of the rotating shaft 2. Two strikers 6 are installed on the inner wall of the housing 1. The two strikers 6 are respectively distributed on two opposite sides of the suspension 3 in the horizontal direction. The two strikers 6 are symmetrically distributed about the suspension 3. The ends of the strikers 6 face the notch position of the groove 4. The ends of the strikers 6 are located on the arrangement path of the contacts in the micro switches 5. Each micro switch 5 is electrically connected to an alarm device, which includes a warning light.

[0025] The working principle of this embodiment is:

[0026] After the shell 1 is fixed to the bridge, when the shell 1 tilts with the bridge, the vertically suspended column 3 is still vertically downward due to the gravity. At this time, the striker 6 on the inner wall of the shell 1 will approach the micro switch 5 in the groove 4 and touch the micro switch 5. The alarm device connected to the triggered micro switch 5 will send an alarm signal and light up the warning light. As the bridge tilts more, the striker 6 will continue to trigger the next micro switch 5 along the arrangement path of the micro switch 5 contacts and light up the next warning light. The greater the tilt of the bridge, the more micro switches 5 can be triggered by the striker 6, and the more warning lights will light up, so that the tilt of the bridge can be intuitively reflected. If the bridge continues to tilt, the warning light will be always on; when the bridge returns to normal, the warning light will go out; if the bridge is only tilted and shaken briefly, the warning light corresponding to the micro switch 5 touched by the striker 6 will flash.

[0027] This embodiment can issue an alarm when the bridge exceeds the normal tilt degree and can reflect the tilt degree of the bridge. This embodiment is a purely mechanical structure and is not affected by electromagnetics and ordinary vibrations of the bridge. When the bridge tilts beyond the design limit, it can continuously and stably issue an alarm signal.

[0028] In other embodiments of the present application, the shape of the shaft hole 8 is circular, the shaft 2 is cylindrical, and the shaft 2 is loosely matched with the shaft hole 8. The alarm device is a buzzer alarm, and the greater the bridge tilt, the more micro switches 5 can be triggered by the striker 6, and the more buzzer alarms that sound.

[0029] In specific applications, this embodiment can be used in conjunction with an existing more accurate inclination sensor to cope with harsh and uncertain natural environments and continuously and stably monitor the inclination of the bridge.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge inclination monitoring device, comprising a housing (1), characterized in that: A rotating shaft (2) is installed in the housing (1), the rotating shaft (2) is arranged horizontally, a suspension column (3) is fixedly installed on the rotating shaft (2), the suspension column (3) is vertically suspended, grooves (4) are respectively opened on two opposite sides of the suspension column (3) in the horizontal direction, a plurality of micro switches (5) are arranged in the grooves (4), the plurality of micro switches (5) are arranged in the horizontal direction, and the arrangement direction of the plurality of micro switches (5) is arranged perpendicular to the axial direction of the rotating shaft (2); two strikers (6) are installed on the inner wall of the housing (1), the two strikers (6) are respectively distributed on two opposite sides of the suspension column (3) in the horizontal direction, the end of the striker (6) faces the notch position of the groove (4), and the end of the striker (6) is located on the arrangement path of the contacts in the micro switch (5); each micro switch (5) is electrically connected to an alarm device.

2. A bridge inclination monitoring device according to claim 1, characterized in that: A mounting column (7) is mounted on the top of the inner wall of the housing (1), and a rotating shaft hole (8) is formed on the mounting column (7). The rotating shaft hole (8) is clearance-matched with the rotating shaft (2).

3. A bridge inclination monitoring device according to claim 2, characterized in that: The shape of the rotating shaft hole (8) is an isosceles triangle, and the top angle of the rotating shaft hole (8) is set downward; the cross section of the rotating shaft (2) is an isosceles triangle with an arc-shaped top angle, and the arc-shaped top angle of the rotating shaft (2) is set downward; the top angle of the isosceles triangle in the cross section of the rotating shaft (2) is smaller than the top angle of the rotating shaft hole (8).

4. A bridge inclination monitoring device according to claim 2, characterized in that: The rotating shaft hole (8) is circular in shape, and the rotating shaft (2) is a cylinder.

5. The bridge inclination monitoring device according to claim 1, characterized in that: The housing (1) is provided with a screw seat (9), the screw seat (9) is provided with a screw hole (10), the screw passes through the screw hole (10) and is connected to the bridge, and the screw is threadedly connected to the screw hole (10).

6. A bridge inclination monitoring device according to claim 5, characterized in that: The screw seat (9) is located on the top of the housing (1).

7. The bridge inclination monitoring device according to claim 1, characterized in that: The grooves (4) on two opposite sides of the suspension column (3) in the horizontal direction have different levels, and the depths of the two grooves (4) are greater than half the thickness of the suspension column (3) in the groove (4) depth direction.

8. A bridge inclination monitoring device according to claim 1 or 7, characterized in that: The groove (4) is formed on two side surfaces of the suspension column (3) which are perpendicular to the axial direction of the rotating shaft (2), and the groove (4) penetrates the suspension column (3) along the axial direction of the rotating shaft (2).

9. The bridge inclination monitoring device according to claim 1, characterized in that: The warning device includes a buzzer alarm and / or a warning light.

10. The bridge inclination monitoring device according to claim 1, characterized in that: The housing (1) and the suspension column (3) are both symmetrical structures, and the two strikers (6) are symmetrically distributed about the suspension column (3).

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