阅读说明：本技术 一种桥梁伸缩缝监测预警系统 (Bridge expansion joint monitoring and early warning system ) 是由 刘达 于 2021-08-02 设计创作，主要内容包括：本发明涉及桥梁监测技术领域,尤其涉及一种桥梁伸缩缝监测预警系统,包括：监测机构,监测机构对称设置有两组,监测机构包括压力传感器和移动板,压力传感器设置在移动板上,两组监测机构中的两个压力传感器均位于两个移动板之间；用于调节两组监测机构间距的调节机构；触发机构,触发机构包括触发板、弹性组件和第二安装架,触发板位于两组监测机构中的两个压力传感器之间,触发板与弹性组件连接,弹性组件与第二安装架连接；信号传输器,信号传输器与两组监测机构中的两个压力传感器分别通讯连接。本发明通过调节机构调节两组监测机构的间距,两组监测机构的间距与整个监测预警系统的灵敏度成反比,通过信号传输器进行报警信号的发送。(The invention relates to the technical field of bridge monitoring, in particular to a bridge expansion joint monitoring and early warning system, which comprises: the monitoring mechanisms are symmetrically provided with two groups, each monitoring mechanism comprises a pressure sensor and a movable plate, the pressure sensors are arranged on the movable plates, and two pressure sensors in the two groups of monitoring mechanisms are positioned between the two movable plates; the adjusting mechanism is used for adjusting the distance between the two groups of monitoring mechanisms; the triggering mechanism comprises a triggering plate, an elastic component and a second mounting frame, the triggering plate is positioned between two pressure sensors in the two groups of monitoring mechanisms, the triggering plate is connected with the elastic component, and the elastic component is connected with the second mounting frame; and the signal transmitter is in communication connection with two pressure sensors in the two groups of monitoring mechanisms respectively. The invention adjusts the distance between two groups of monitoring mechanisms through the adjusting mechanism, the distance between the two groups of monitoring mechanisms is inversely proportional to the sensitivity of the whole monitoring and early warning system, and the alarm signal is sent through the signal transmitter.)

1. The utility model provides a bridge expansion joint monitoring and early warning system which characterized in that includes:

the monitoring mechanism (100) is symmetrically provided with two groups, the monitoring mechanism (100) comprises pressure sensors (1) and a moving plate (2), the pressure sensors (1) are arranged on the moving plate (2), and two pressure sensors (1) in the two groups of monitoring mechanisms are positioned between the two moving plates (2);

the adjusting mechanism (200) is used for adjusting the distance between the two groups of monitoring mechanisms (100);

the trigger mechanism (300) comprises a trigger plate (9), an elastic component and a second mounting frame (13), the trigger plate (9) is located between the two pressure sensors (1) in the two groups of monitoring mechanisms (100), the trigger plate (9) is connected with the elastic component, and the elastic component is connected with the second mounting frame (13);

and the signal transmitter (400), the signal transmitter (400) and two pressure sensors (1) in the two groups of monitoring mechanisms (100) are respectively in communication connection.

2. The bridge expansion joint monitoring and early warning system according to claim 1, wherein the adjusting mechanism (200) comprises a knob (3), a two-way screw rod (4), a screw rod nut (41), a guide rod (5), a connecting frame (6) and a first mounting frame (7), the connecting frame (6) is of a U-shaped plate structure, the U-shaped opening is arranged downwards, the connecting frame (6) is arranged at the bottom of the first mounting frame (7), the knob (3) is connected with the end part of the two-way screw rod (4), the two-way screw rod (4) is arranged in parallel with the guide rod (5), the two-way screw rod (4) is rotatably arranged on the connecting frame (6), the two-way screw rod (4) is provided with a first thread part and a second thread part which have opposite thread directions, the two screw rod nuts (41) are symmetrically arranged, and the two screw rod nuts (41) are respectively in threaded connection with the first thread part and the second thread part, the two lead screw nuts (41) are respectively connected with the two moving plates (2) in the two groups of monitoring mechanisms (100), the guide rod (5) penetrates through the moving plates (2) and is in sliding connection with the moving plates (2), and the guide rod (5) is arranged on the connecting frame (6).

3. The bridge expansion joint monitoring and early warning system as claimed in claim 2, wherein a first shielding piece (81) is connected between the moving plate (2) and the connecting frame (6), a second shielding piece (82) is connected between the two moving plates (2), and the bidirectional screw rod (4) and the guide rod (5) are both positioned at the inner sides of the first shielding piece (81) and the second shielding piece (82).

4. The monitoring and early warning system for the bridge expansion joint as claimed in claim 3, wherein the first shielding member (81) and the second shielding member (82) are both pleated cylindrical structures, and both ends of the first shielding member and the second shielding member are open.

5. The bridge expansion joint monitoring and early warning system according to claim 1, wherein the elastic assembly comprises a guide rod (10), a first connecting plate (111), a second connecting plate (112), a first elastic part (121) and a second elastic part (122), the guide rod (10) penetrates through the trigger plate (9) and is in sliding connection with the trigger plate (9), two ends of the guide rod (10) are respectively connected with the first connecting plate (111) and the second connecting plate (112), the first connecting plate (111) is arranged on the second mounting frame (13), the first elastic part (121) and the second elastic part (122) are both axially arranged along the guide rod (10), two ends of the first elastic part (121) are respectively connected with the trigger plate (9) and the first connecting plate (111), and two ends of the second elastic part (122) are respectively connected with the trigger plate (9) and the second connecting plate (112).

6. The bridge expansion joint monitoring and early warning system as claimed in claim 5, wherein the first elastic member (121) and the second elastic member (122) are both compression springs, and the first elastic member (121) and the second elastic member (122) are both sleeved on the outer peripheral side of the guide rod (10).

7. The monitoring and early warning system for the bridge expansion joint as claimed in claim 1, wherein the first mounting frame (7) is provided with a first mounting hole, and the second mounting frame (13) is provided with a second mounting hole.

8. The monitoring and early warning system for the bridge expansion joint as claimed in claim 1, wherein the signal transmitter (400) is connected with a monitoring terminal in a remote communication manner, and the monitoring terminal is a handheld terminal or a monitoring station.

Technical Field

The invention relates to the technical field of bridge monitoring, in particular to a bridge expansion joint monitoring and early warning system.

Background

A bridge expansion joint is defined as an expansion joint between two beam ends, between a beam end and an abutment, or at a hinge joint of a bridge, in order to meet the requirement of deformation of a bridge deck. The expansion joint is required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, and the expansion joint is firm and reliable, and when a vehicle runs, the vehicle is smooth and free of sudden jump and noise; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient. At the position of the expansion joint, the handrail and the bridge deck pavement are disconnected.

Under the prior art, the monitoring of bridge expansion joints is generally carried out through manual monitoring, but the error of manual monitoring is large, and the monitoring precision cannot be guaranteed.

Disclosure of Invention

The invention aims to provide a bridge expansion joint monitoring and early warning system capable of improving monitoring accuracy aiming at the problems in the background technology.

According to the technical scheme, the bridge expansion joint monitoring and early warning system comprises:

the monitoring mechanisms are symmetrically provided with two groups, each monitoring mechanism comprises a pressure sensor and a movable plate, the pressure sensors are arranged on the movable plates, and two pressure sensors in the two groups of monitoring mechanisms are positioned between the two movable plates;

the adjusting mechanism is used for adjusting the distance between the two groups of monitoring mechanisms;

the triggering mechanism comprises a triggering plate, an elastic component and a second mounting frame, the triggering plate is positioned between two pressure sensors in the two groups of monitoring mechanisms, the triggering plate is connected with the elastic component, and the elastic component is connected with the second mounting frame;

and the signal transmitter is in communication connection with two pressure sensors in the two groups of monitoring mechanisms respectively.

Preferably, adjustment mechanism includes the knob, two-way lead screw, screw-nut, the guide bar, link and first mounting bracket, the link is U-shaped plate structure, and the U-shaped opening sets up down, the link sets up in first mounting bracket bottom, knob and two-way lead screw end connection, two-way lead screw and guide bar parallel arrangement, two-way lead screw rotates and sets up on the link, be provided with the first screw portion and the second screw portion that the screw thread revolves to opposite on the two-way lead screw, screw-nut symmetry is provided with two, two screw-nut respectively with first screw portion and second screw portion threaded connection, two screw-nut are connected with two movable plates in two sets of monitoring mechanism respectively, the guide bar runs through the movable plate and with movable plate sliding connection, the guide bar sets up on the link.

Preferably, a first shielding piece is connected between the moving plates and the connecting frame, a second shielding piece is connected between the two moving plates, and the bidirectional screw rod and the guide rod are located on the inner sides of the first shielding piece and the second shielding piece.

Preferably, the first and second shields are each of pleated cylindrical structure, open at both ends.

Preferably, the elastic component comprises a guide rod, a first connecting plate, a second connecting plate, a first elastic piece and a second elastic piece, the guide rod penetrates through the trigger plate and is in sliding connection with the trigger plate, the two ends of the guide rod are respectively connected with the first connecting plate and the second connecting plate, the first connecting plate is arranged on the second mounting frame, the first elastic piece and the second elastic piece are both axially arranged along the guide rod, the two ends of the first elastic piece are respectively connected with the trigger plate and the first connecting plate, and the two ends of the second elastic piece are respectively connected with the trigger plate and the second connecting plate.

Preferably, the first elastic piece and the second elastic piece are both compression springs, and the first elastic piece and the second elastic piece are both sleeved on the periphery of the guide rod.

Preferably, the first mounting frame is provided with a first mounting hole, and the second mounting frame is provided with a second mounting hole.

Preferably, the signal transmitter is connected with a monitoring terminal in a remote communication mode, and the monitoring terminal is a handheld terminal or a monitoring station.

Compared with the prior art, the invention has the following beneficial technical effects:

the distance between the two groups of monitoring mechanisms is adjusted through the adjusting mechanism, the distance between the two groups of monitoring mechanisms is inversely proportional to the sensitivity of the whole monitoring and early warning system, and the distance between the two groups of monitoring mechanisms can be flexibly set according to monitoring requirements. When the relative displacement of the two beam ends reaches an alarm threshold value, the trigger plate presses the pressure sensor to trigger alarm, and the signal transmitter sends an alarm signal, so that a worker can know the alarm signal in time, the problem is solved in time, and potential safety hazards are eliminated.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a monitoring mechanism, an adjusting mechanism and a triggering mechanism;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is a schematic diagram of the moving principle of the moving plate.

Reference numerals: 100. a monitoring mechanism; 1. a pressure sensor; 2. moving the plate; 200. an adjustment mechanism; 3. a knob; 4. a bidirectional screw rod; 41. a feed screw nut; 5. a guide bar; 6. a connecting frame; 7. a first mounting bracket; 81. a first shield; 82. a second shield; 300. a trigger mechanism; 9. a trigger plate; 10. a guide bar; 111. a first connecting plate; 112. a second connecting plate; 121. a first elastic member; 122. a second elastic member; 13. a second mounting bracket; 400. a signal transmitter.

Detailed Description

First embodiment

As shown in fig. 1-3, the present invention provides a bridge expansion joint monitoring and early warning system, which comprises:

the monitoring mechanism 100, the monitoring mechanism 100 is symmetrically provided with two groups, the monitoring mechanism 100 comprises pressure sensors 1 and a moving plate 2, the pressure sensors 1 are arranged on the moving plate 2, and two pressure sensors 1 in the two groups of monitoring mechanisms are both positioned between the two moving plates 2;

the adjusting mechanism 200 is used for adjusting the distance between the two groups of monitoring mechanisms 100, the adjusting mechanism 200 is installed at one beam end, the adjusting mechanism 200 is used for adjusting the distance between the two moving plates 2 in the two groups of monitoring mechanisms 100 according to monitoring requirements, monitoring can be carried out in two directions, and the monitoring range is larger;

the triggering mechanism 300 is characterized in that the triggering mechanism 300 comprises a triggering plate 9, an elastic assembly and a second mounting frame 13, the triggering plate 9 is located between the two pressure sensors 1 in the two groups of monitoring mechanisms 100, the triggering plate 9 is connected with the elastic assembly, the elastic assembly is connected with the second mounting frame 13, the second mounting frame 13 is mounted at the other beam end corresponding to the installation adjusting mechanism 200, when the distance between the two beam ends changes, the distance between the triggering plate 9 and any one pressure sensor 1 is increased, the distance between the triggering plate 9 and the other pressure sensor 1 is reduced, and when the triggering plate 9 presses the other pressure sensor 1, the fact that the relative displacement of the two beam ends reaches a danger threshold value is indicated; elastic component includes guide arm 10, first connecting plate 111, second connecting plate 112, first elastic component 121 and second elastic component 122, guide arm 10 runs through trigger plate 9 and with trigger plate 9 sliding connection, the guide arm 10 both ends are connected with first connecting plate 111 and second connecting plate 112 respectively, first connecting plate 111 sets up on second mounting bracket 13, first elastic component 121 and second elastic component 122 all set up along guide arm 10 axial, first elastic component 121 both ends are connected with trigger plate 9 and first connecting plate 111 respectively, second elastic component 122 both ends are connected with trigger plate 9 and second connecting plate 112 respectively. The first elastic element 121 and the second elastic element 122 are both compression springs, and the first elastic element 121 and the second elastic element 122 are both sleeved on the outer periphery of the guide rod 10. When the trigger plate 9 presses the pressure sensor 1, if the trigger plate 9 continues to press the pressure sensor 1, the first elastic member 121 and the second elastic member 122 may deform, so as to buffer the pressure of the trigger plate 9 and prevent the pressure sensor 1 and the trigger plate 9 from being damaged.

And the signal transmitter 400, wherein the signal transmitter 400 is respectively in communication connection with the two pressure sensors 1 in the two groups of monitoring mechanisms 100. Signal transmission ware 400 remote communication is connected with monitor terminal, and monitor terminal is handheld terminal or control station, and when trigger plate 9 pressed to arbitrary pressure sensor 1 on, this pressure sensor 1 passed through signal transmission ware 400 to monitor terminal conveying alarm signal, and the staff can in time learn alarm signal, and the personnel of being convenient for in time arrange handle, guarantee bridge construction safety.

Second embodiment

As shown in fig. 2 and fig. 4, compared with the first embodiment, the adjusting mechanism 200 in the first embodiment of the present invention includes a knob 3, a bidirectional screw rod 4, screw nuts 41, a guide rod 5, a connecting frame 6 and a first mounting frame 7, the connecting frame 6 is a U-shaped plate structure, the U-shaped opening is disposed downward, the connecting frame 6 is disposed at the bottom of the first mounting frame 7, the knob 3 is connected to an end of the bidirectional screw rod 4, the bidirectional screw rod 4 is disposed in parallel with the guide rod 5, the bidirectional screw rod 4 is rotatably disposed on the connecting frame 6, the bidirectional screw rod 4 is provided with a first screw thread portion and a second screw thread portion with opposite screw thread directions, the screw nuts 41 are symmetrically disposed, the two screw nuts 41 are respectively connected to the first screw thread portion and the second screw thread portion, the two screw nuts 41 are respectively connected to the two moving plates 2 in the two sets of monitoring mechanisms 100, the guide rod 5 penetrates through the moving plate 2 and is connected with the moving plate 2 in a sliding mode, and the guide rod 5 is arranged on the connecting frame 6. A first shielding piece 81 is connected between the moving plates 2 and the connecting frame 6, a second shielding piece 82 is connected between the two moving plates 2, and the bidirectional screw rod 4 and the guide rod 5 are both positioned on the inner sides of the first shielding piece 81 and the second shielding piece 82. The first shielding piece 81 and the second shielding piece 82 are both of pleated cylindrical structures, both ends of which are open, and can shield and protect the inner bidirectional screw rod 4 and the guide rod 5. The first mounting frame 7 is provided with a first mounting hole, and the second mounting frame 13 is provided with a second mounting hole. Can drive two-way lead screw 4 through rotatory knob 3 and rotate, two-way lead screw 4 drives two screw-nut 41 and moves in opposite directions or from each other, screw-nut 41 drives movable plate 2 and removes to can realize the regulation of 2 intervals of two movable plates, realize the regulation to two sets of monitoring mechanism intervals promptly, it is very convenient to operate, two pressure sensor 1's interval is less, then it is pressed by trigger plate 9 more easily, report to the police more easily, alarm threshold value scope is littleer, monitoring early warning system is sensitive more.

In the invention, the distance between the two groups of monitoring mechanisms 100 is adjusted by the adjusting mechanism 200, the distance between the two groups of monitoring mechanisms 100 is inversely proportional to the sensitivity of the whole monitoring and early warning system, and the distance between the two groups of monitoring mechanisms 100 can be flexibly set according to the monitoring requirement. When the relative displacement of the two beam ends reaches an alarm threshold value, the trigger plate 9 is pressed on the pressure sensor 1 to trigger alarm, and the signal transmitter 400 sends an alarm signal, so that a worker can timely know the alarm signal, the problem is timely solved, and potential safety hazards are eliminated.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.