CN113674490B - Bridge expansion joint monitoring and early warning system - Google Patents
Bridge expansion joint monitoring and early warning system Download PDFInfo
- Publication number
- CN113674490B CN113674490B CN202110880479.2A CN202110880479A CN113674490B CN 113674490 B CN113674490 B CN 113674490B CN 202110880479 A CN202110880479 A CN 202110880479A CN 113674490 B CN113674490 B CN 113674490B
- Authority
- CN
- China
- Prior art keywords
- monitoring
- plate
- groups
- early warning
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
- G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
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.
Description
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 blockage; 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 moving plate, the pressure sensors are arranged on the moving plates, and two pressure sensors in the two groups of monitoring mechanisms are positioned between the two moving 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, the adjusting mechanism comprises a knob, a bidirectional screw rod, screw nuts, guide rods, a connecting frame and a first mounting frame, the connecting frame is of a U-shaped plate-shaped structure, the U-shaped opening is arranged downwards, the connecting frame is arranged at the bottom of the first mounting frame, the knob is connected with the end of the bidirectional screw rod, the bidirectional screw rod is arranged in parallel with the guide rods, the bidirectional screw rod is rotatably arranged on the connecting frame, a first screw thread portion and a second screw thread portion which are opposite in screw thread direction are arranged on the bidirectional screw rod, the screw nuts are symmetrically arranged, the two screw nuts are respectively in threaded connection with the first screw thread portion and the second screw thread portion, the two screw nuts are respectively connected with two movable plates in the two groups of monitoring mechanisms, the guide rods penetrate through the movable plates and are in sliding connection with the movable plates, and the guide rods are arranged on the connecting frame.
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, and both ends are open.
Preferably, the elastic component comprises a guide rod, a first connecting plate, a second connecting plate, a first elastic part and a second elastic part, the guide rod runs through the trigger plate and is connected with the trigger plate in a sliding mode, 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 part and the second elastic part are arranged along the axial direction of the guide rod, the two ends of the first elastic part are respectively connected with the trigger plate and the first connecting plate, and the two ends of the second elastic part 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 sleeved on the outer peripheral side 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 rod; 6. a connecting frame; 7. a first mounting bracket; 81. a first shielding member; 82. a second shielding member; 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 comprises a triggering plate 9, an elastic component 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 component, the elastic component is connected with the second mounting frame 13, the second mounting frame 13 is mounted at the other beam end corresponding to the mounting and 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, it is indicated that the relative displacement of the two beam ends reaches a danger threshold; 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 in communication connection with two pressure sensors 1 in two groups of monitoring mechanisms 100 respectively. 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 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, wherein 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 to 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, 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 two moving plates 2 in the two sets of monitoring mechanisms 100, the guide rod 5 penetrates through the moving plates 2 and is slidably connected to the moving plates 2, and the guide rod 5 is disposed 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, and both ends of the first shielding piece and the second shielding piece are open, so that the inner bidirectional screw rod 4 and the inner guide rod 5 can be shielded and protected. 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.
Claims (7)
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 adjusting mechanism (200) comprises a knob (3), a bidirectional screw rod (4), screw rod nuts (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-shaped structure, a 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 bidirectional screw rod (4), the bidirectional screw rod (4) is arranged in parallel with the guide rod (5), the bidirectional screw rod (4) is rotatably arranged on the connecting frame (6), a first screw thread part and a second screw thread part with opposite thread directions are arranged on the bidirectional screw rod (4), the screw rod nuts (41) are symmetrically arranged in two numbers, the two screw rod nuts (41) are respectively in threaded connection with the first screw thread part and the second screw thread part, the two screw rod nuts (41) are respectively connected with two moving plates (2) in the two groups of the monitoring mechanisms (100), the guide rod moving plate (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);
the triggering mechanism (300) comprises a triggering plate (9), an elastic component and a second mounting frame (13), the triggering plate (9) is positioned between two pressure sensors (1) in the two groups of monitoring mechanisms (100), the triggering 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 monitoring and early warning system for the bridge expansion joint according to claim 1, 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).
3. The monitoring and early warning system for the bridge expansion joint as claimed in claim 2, 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.
4. The bridge expansion joint monitoring and early warning system as claimed in claim 1, wherein the elastic component comprises a guide rod (10), a first connecting plate (111), a second connecting plate (112), a first elastic member (121) and a second elastic member (122), the guide rod (10) penetrates through the trigger plate (9) and is slidably connected 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 member (121) and the second elastic member (122) are both axially arranged along the guide rod (10), two ends of the first elastic member (121) are respectively connected with the trigger plate (9) and the first connecting plate (111), and two ends of the second elastic member (122) are respectively connected with the trigger plate (9) and the second connecting plate (112).
5. The bridge expansion joint monitoring and early warning system as claimed in claim 4, 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).
6. 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.
7. The monitoring and early warning system for the bridge expansion joint according to claim 1, wherein the signal transmitter (400) is in remote communication connection with a monitoring terminal, and the monitoring terminal is a handheld terminal or a monitoring station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880479.2A CN113674490B (en) | 2021-08-02 | 2021-08-02 | Bridge expansion joint monitoring and early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880479.2A CN113674490B (en) | 2021-08-02 | 2021-08-02 | Bridge expansion joint monitoring and early warning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113674490A CN113674490A (en) | 2021-11-19 |
| CN113674490B true CN113674490B (en) | 2023-03-17 |
Family
ID=78541059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110880479.2A Active CN113674490B (en) | 2021-08-02 | 2021-08-02 | Bridge expansion joint monitoring and early warning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113674490B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107403537A (en) * | 2017-08-01 | 2017-11-28 | 钟晓梅 | A kind of artificial intelligence early warning system for bridge deformation monitoring |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0134476B1 (en) * | 1983-07-06 | 1987-10-14 | Winfred Klink | Pressure-sensitive sensor device for an alarm signal transmitter |
| CN105118241B (en) * | 2015-09-30 | 2017-03-08 | 宏大国源（芜湖）资源环境治理有限公司 | A kind of early warning system for Dangerous Rock Body avalanche monitoring |
| CN106840064A (en) * | 2016-12-30 | 2017-06-13 | 长沙理工大学 | Bridge expansion joint displacement monitoring devices |
| CN211626543U (en) * | 2019-09-03 | 2020-10-02 | 牛连慧 | Bridge large displacement expansion joint structure monitoring devices |
| CN213422016U (en) * | 2020-11-16 | 2021-06-11 | 苏州交通工程试验检测中心有限公司 | Width detection device for bridge cracks |
| CN112880544B (en) * | 2021-01-13 | 2022-09-09 | 马洲 | Bridge expansion joint alarm device for road engineering |
-
2021
- 2021-08-02 CN CN202110880479.2A patent/CN113674490B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107403537A (en) * | 2017-08-01 | 2017-11-28 | 钟晓梅 | A kind of artificial intelligence early warning system for bridge deformation monitoring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113674490A (en) | 2021-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110422198B (en) | Integrated real-time measuring device for longitudinal crawling and close-fitting clearance of switch rail | |
| CN113674490B (en) | Bridge expansion joint monitoring and early warning system | |
| CN203146668U (en) | Crane brake with brake pad thickness early warning device | |
| CN107781257B (en) | Oil cylinder displacement detection device | |
| CN113830675B (en) | Weight limiter detection device for tower crane inspection | |
| CN201580935U (en) | Hoister intelligent master controller failure protecting device | |
| EP3567290B1 (en) | Monitoring system for monitoring the operating states of a movable component | |
| CN103670515A (en) | Underground coal mine air-door fault early warning system | |
| EP2035784A2 (en) | Monitoring device for a measuring device | |
| CN106969720B (en) | Integrated intelligent monitoring control system and method for thread pair clearance of ship lift safety mechanism | |
| DE102018125840A1 (en) | Tool Center Point | |
| US7135648B2 (en) | End position detector for movable switch parts | |
| CN203559422U (en) | Protecting device for inclination of upright column | |
| CN101279813B (en) | Novel torsionmeter | |
| GB2336615A (en) | Actuator for a rail switch and crossing system | |
| DE102008004540B4 (en) | Arrangement for roll gap control | |
| CN211472131U (en) | Installation protection device for vibration detection sensor of railway bridge | |
| CN220432118U (en) | Detection alarm device for wire rope groove removal of crown block | |
| CN220623622U (en) | Protective equipment for high-voltage iron tower | |
| CN109780001A (en) | A kind of oil cylinder with travel limiting function | |
| EP3358331A1 (en) | Device for recording changes in the spatial distance between two stationary anchored measuring points | |
| CN218628790U (en) | Remote alarm pressure gauge | |
| DE102019211666B4 (en) | Measuring device with limiting device for a tightening torque, wherein the limiting device is formed integrally with a rotary fastening element | |
| CN108861424A (en) | A kind of safety monitoring system for sealing-tape machine | |
| CN219546648U (en) | Rope breakage detection mechanism and aerial work platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |