Pressure monitoring sensing device of intelligent bridge support

Abstract

The utility model discloses a pressure monitoring sensing device of an intelligent bridge support, which relates to the technical field of bridges and comprises a basin seat and an auxiliary oil cavity, and the auxiliary oil cavity is arranged on the left side of the top of the basin seat and is arranged inside a boss on the left side. According to the pressure monitoring sensing device of the intelligent bridge support, based on the Pascal's law, a closed system is composed of a main oil cavity, a conveying pipe for outputting from the bottom, an auxiliary oil cavity and a backflow pipe for backflow on the side face, and the area of a driving piston is the same as that of a driven piston; therefore, the pier connecting rod can generate the same pressure increment in the auxiliary oil cavity through the flowing of the hydraulic oil by applying the pressure in the main oil cavity through the driving piston, so that the driven piston is driven to move by the same distance, and a pressure sensor is arranged at the top end in the auxiliary oil cavity, so that the magnitude of the vertical load borne by the basin seat is sensed; it is worthy of illustrating that the pressure sensor does not participate in structural stress, so that the service life can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to a pressure monitoring sensor device for an intelligent bridge support. Background Art

[0002] Most bridges are located at the throat of important transportation channels and are important transportation infrastructure related to the national economy and people's livelihood. The health monitoring technology for bridge structures is receiving increasing attention and attention. Bearings are important components for transferring loads, coordinating deformations, and ensuring structural safety between the upper and lower structures of bridges. Intelligent monitoring technology based on the working status of bridge bearings can directly provide data for the health status assessment of bridge structures and the statistics of road traffic data, which is of great significance to improving the disaster prevention and mitigation capabilities of bridge structures, promoting the intelligent management of bridge maintenance systems and urban transportation systems, and promoting the construction of smart cities and the Internet of Things.

[0003] In the prior art, bridge bearings are three-way force measuring bearings, that is, on the basis of conventional bearings, real-time load testing is achieved by integrating force measuring elements, data acquisition and data processing equipment. However, the vertical pressure sensor used in the three-way force measuring bearing not only monitors the vertical pressure of the bearing but also participates in the structural stress. Under the action of long-term pressure, the metal material of the vertical pressure sensor has a certain creep deformation, which causes the vertical pressure sensor to fail.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a pressure monitoring sensor device for an intelligent bridge bearing is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a pressure monitoring sensor device for an intelligent bridge support to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure monitoring sensor device for an intelligent bridge bearing, comprising a basin seat and an auxiliary oil chamber, wherein an auxiliary oil chamber is arranged on the left side of the top of the basin seat, and the auxiliary oil chamber is opened inside the left boss, a circuit board is built into the top of the boss, and a rubber pad is laid on the plane of the top of the boss, a slave piston is slidably fitted inside the auxiliary oil chamber, and the slave piston is tightly fitted with the inner wall of the auxiliary oil chamber through a second seal, a pressure sensor is fixed on the top of the auxiliary oil chamber, and the input end of the pressure sensor is in conflict with the driven piston, and the output end of the pressure sensor is electrically connected to the circuit board through a signal line.

[0007] Furthermore, pier connecting columns are fixedly connected to both sides of the bottom of the basin seat, and a main oil cavity is opened at the middle end of the top of the basin seat.

[0008] Furthermore, a driving piston is slidably fitted inside the main oil chamber, and the driving piston is tightly fitted with the main oil chamber through a sealing member 1.

[0009] Furthermore, the driving piston is fixed to the top plate by bolts, and bridge connecting columns are fixedly connected to both sides of the top of the top plate.

[0010] Furthermore, a delivery pipe is connected to the middle end of the bottom of the main oil chamber, and the delivery pipe is connected to the auxiliary oil chamber at one end away from the main oil chamber.

[0011] Furthermore, a reflux pipe is connected to the side of the auxiliary oil chamber, and an end of the reflux pipe away from the auxiliary oil chamber is connected to the main oil chamber.

[0012] Furthermore, both the delivery pipe and the return pipe are provided with throttle valves, and the throttle valve inside the delivery pipe is close to one side of the auxiliary oil chamber, and the throttle valve inside the return pipe is close to one side of the main oil chamber.

[0013] Furthermore, a cross bracket is fixed inside the delivery pipe and the return pipe, and a one-way rubber sheet is connected to the side of the cross bracket, and the curling direction of the one-way rubber sheet can only be consistent with the flow direction of the hydraulic oil.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When the utility model is in use, based on Pascal's law, the present application is composed of a main oil chamber and a delivery pipe output at the bottom, a secondary oil chamber and a return pipe for side return to form a closed system. Since the area of ​​the driving piston is the same as that of the driven piston, the pressure applied to the main oil chamber by the pier connecting rod through the driving piston will generate the same pressure increment in the secondary oil chamber through the flow of hydraulic oil, thereby driving the driven piston to move the same distance. By arranging a pressure sensor at the top of the secondary oil chamber, the magnitude of the vertical load on the basin seat can be sensed. It is worth mentioning that the pressure sensor in the present application does not participate in the structural force, so it can effectively extend the service life. At the same time, the pressure sensor transmits the data to the built-in circuit board of the left boss through the signal line. After filtering, amplification, signal conversion, comparison calculation and other program processing, the built-in wireless module of the circuit board feeds back the data to the management terminal, so as to realize real-time monitoring of the bridge bearing pressure.

[0016] 2. When the utility model is in use, a simple one-way valve composed of a cross bracket and a one-way rubber sheet is arranged in the delivery pipe and the return pipe to control the one-way flow of the hydraulic oil. Since the one-way rubber sheet is backed by the cross bracket, the curling direction of the one-way rubber sheet can only be consistent with the flow direction of the hydraulic oil. In addition, by arranging a throttle valve in the delivery pipe and the return pipe, the flow rate of the hydraulic oil in the delivery pipe and the return pipe can be slowed down to form a damping effect, which can not only relieve the pressure exerted on the bridge support by the pier connecting column and prevent retreat, but also does not affect the pressure transmission effect of the above-mentioned closed system, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the one-way rubber sheet of the utility model.

[0020] In the figure: 1. Basin seat; 2. Bridge pier connecting column; 3. Main oil chamber; 4. Driving piston; 5. Seal 1; 6. Top plate; 7. Bridge connecting column; 8. Delivery pipe; 9. Auxiliary oil chamber; 10. Boss; 11. Circuit board; 12. Rubber pad; 13. Driven piston; 14. Seal 2; 15. Pressure sensor; 16. Return pipe; 17. Throttle valve; 18. Cross bracket; 19. One-way rubber sheet. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 to Figure 2As shown, a pressure monitoring sensor device for an intelligent bridge bearing includes a basin seat 1 and a secondary oil chamber 9. The secondary oil chamber 9 is arranged on the left side of the top of the basin seat 1, and the secondary oil chamber 9 is opened inside the left boss 10. A circuit board 11 is built into the top of the boss 10, and a rubber pad 12 is laid on the top plane of the boss 10. A slave piston 13 is slidably matched inside the secondary oil chamber 9, and the slave piston 13 is tightly matched with the inner wall of the secondary oil chamber 9 through a seal 14. A pressure sensor 15 is fixed to the top of the secondary oil chamber 9, and the input end of the pressure sensor 15 conflicts with the slave piston 13, and the output of the pressure sensor 15 The output end is electrically connected to the circuit board 11 through a signal line, and the pressure sensor 15 transmits the data to the built-in circuit board 11 of the left boss 10 through the signal line. After being processed by programs such as filtering, amplification, signal conversion, and comparison calculation, the built-in wireless module of the circuit board 11 feeds back the data to the management terminal, thereby realizing real-time monitoring of the bridge bearing pressure. A reflux pipe 16 is connected to the side of the auxiliary oil chamber 9, and the end of the reflux pipe 16 facing away from the auxiliary oil chamber 9 is connected to the main oil chamber 3. Throttle valves 17 are provided inside the delivery pipe 8 and the reflux pipe 16, and the throttle valve 17 inside the delivery pipe 8 is close to the side of the auxiliary oil chamber 9. And the throttle valve 17 inside the return pipe 16 is close to one side of the main oil chamber 3, and a cross bracket 18 is fixed inside the delivery pipe 8 and the return pipe 16, and a one-way rubber sheet 19 is connected to the side of the cross bracket 18, and the curling direction of the one-way rubber sheet 19 can only be consistent with the flow direction of the hydraulic oil. A simple one-way valve composed of a cross bracket 18 and a one-way rubber sheet 19 is arranged in the delivery pipe 8 and the return pipe 16 to control the one-way flow of the hydraulic oil. Because the one-way rubber sheet 19 is backed by the cross bracket 18, the curling direction of the one-way rubber sheet 19 can only be consistent with the flow direction of the hydraulic oil. In addition, by arranging the throttle valve 17 in the delivery pipe 8 and the return pipe 16, the flow rate of the hydraulic oil in the delivery pipe 8 and the return pipe 16 can be slowed down to form a damping effect, which can not only relieve the pressure exerted on the bridge support by the pier connecting column 2 and prevent retreat, but also does not affect the pressure transmission effect of the above-mentioned closed system;

[0023] like Figures 1 to 3As shown, the bottom sides of the basin seat 1 are fixedly connected with pier connecting columns 2, and the top middle end of the basin seat 1 is provided with a main oil chamber 3, the main oil chamber 3 is slidably matched with a driving piston 4, and the driving piston 4 is tightly matched with the main oil chamber 3 through a sealing member 5, the driving piston 4 is fixed to the top plate 6 by bolts, and the top two sides of the top of the top plate 6 are fixedly connected with bridge connecting columns 7, the bottom middle end of the main oil chamber 3 is connected with a delivery pipe 8, and the delivery pipe 8 is connected with the auxiliary oil chamber 9 at one end away from the main oil chamber 3. The present application is provided with a delivery pipe 8 output from the main oil chamber 3 and the bottom, the auxiliary oil chamber 9 and the side return The return pipe 16 of the flow forms a closed system. Since the area of ​​the driving piston 4 is the same as that of the driven piston 13, the pressure applied to the main oil chamber 3 by the pier connecting rod through the driving piston 4 will generate the same pressure increment in the auxiliary oil chamber 9 through the flow of hydraulic oil, thereby driving the driven piston 13 to move the same distance. By arranging a pressure sensor 15 at the top of the auxiliary oil chamber 9, the size of the vertical load on the basin seat 1 can be sensed. It is worth noting that the pressure sensor 15 in the present application does not participate in the structural force, so the service life can be effectively extended.

[0024] Working principle: When using the pressure monitoring sensor device of this intelligent bridge bearing, based on Pascal's law, the present application consists of a closed system consisting of a main oil chamber 3 and a bottom output delivery pipe 8, a secondary oil chamber 9 and a side return pipe 16. Since the area of ​​the driving piston 4 is the same as that of the driven piston 13, the pressure applied to the main oil chamber 3 by the pier connecting rod through the driving piston 4 will produce the same pressure increment in the secondary oil chamber 9 through the flow of hydraulic oil, thereby driving the driven piston 13 to move the same distance. By setting a pressure sensor 15 at the top of the secondary oil chamber 9, the magnitude of the vertical load on the basin seat 1 can be sensed. It is worth noting that the pressure sensor 15 in the present application does not participate in the structural force, so the service life can be effectively extended. At the same time, the pressure sensor 15 transmits data to the built-in circuit board of the left boss 10 through a signal line. 11, after being processed by programs such as filtering amplification, signal conversion and comparative calculation, the built-in wireless module of the circuit board 11 feeds back the data to the management terminal, so as to realize real-time monitoring of the pressure of the bridge bearing. A simple one-way valve composed of a cross bracket 18 and a one-way rubber sheet 19 is arranged in the delivery pipe 8 and the return pipe 16 to control the one-way flow of the hydraulic oil. Since the one-way rubber sheet 19 is backed by the cross bracket 18, the curling direction of the one-way rubber sheet 19 can only be consistent with the flow direction of the hydraulic oil. In addition, by arranging a throttle valve 17 in the delivery pipe 8 and the return pipe 16, the flow rate of the hydraulic oil in the delivery pipe 8 and the return pipe 16 can be slowed down to form a damping effect, which can not only relieve the pressure exerted on the bridge bearing by the pier connecting column 2 and prevent retreat, but also does not affect the pressure transmission effect of the above-mentioned closed system, and has strong applicability.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A pressure monitoring sensor device for an intelligent bridge support, characterized in that: The invention comprises a basin seat (1) and an auxiliary oil chamber (9), wherein the basin seat (1) is provided with an auxiliary oil chamber (9) on the left side of the top, and the auxiliary oil chamber (9) is opened inside a left boss (10), a circuit board (11) is built in the top of the boss (10), and a rubber pad (12) is laid on the top plane of the boss (10), a slave piston (13) is slidably matched inside the auxiliary oil chamber (9), and the slave piston (13) is tightly matched with the inner wall of the auxiliary oil chamber (9) through a second seal (14), a pressure sensor (15) is fixed on the top of the auxiliary oil chamber (9), and the input end of the pressure sensor (15) is in conflict with the slave piston (13), and the output end of the pressure sensor (15) is electrically connected to the circuit board (11) through a signal line.

2. The pressure monitoring sensor device for an intelligent bridge support according to claim 1 is characterized in that: Bridge pier connection columns (2) are fixedly connected to both sides of the bottom of the basin seat (1), and a main oil chamber (3) is opened at the middle end of the top of the basin seat (1).

3. The pressure monitoring sensor device for an intelligent bridge support according to claim 2 is characterized in that: A driving piston (4) is slidably fitted inside the main oil chamber (3), and the driving piston (4) is tightly fitted with the main oil chamber (3) via a sealing member (5).

4. The pressure monitoring sensor device for an intelligent bridge support according to claim 3 is characterized in that: The driving piston (4) is fixed to the top plate (6) by means of bolts, and bridge connection columns (7) are fixedly connected to both sides of the top of the top plate (6).

5. The pressure monitoring sensor device for an intelligent bridge support according to claim 4 is characterized in that: The middle end of the bottom of the main oil chamber (3) is connected to a delivery pipe (8), and the end of the delivery pipe (8) facing away from the main oil chamber (3) is connected to the auxiliary oil chamber (9).

6. The pressure monitoring sensor device for an intelligent bridge support according to claim 5 is characterized in that: The side of the auxiliary oil chamber (9) is connected to a return pipe (16), and the end of the return pipe (16) facing away from the auxiliary oil chamber (9) is connected to the main oil chamber (3).

7. The pressure monitoring sensor device for an intelligent bridge support according to claim 6 is characterized in that: The delivery pipe (8) and the return pipe (16) are both provided with throttle valves (17), and the throttle valve (17) inside the delivery pipe (8) is close to the auxiliary oil chamber (9), and the throttle valve (17) inside the return pipe (16) is close to the main oil chamber (3).

8. The pressure monitoring sensor device for an intelligent bridge support according to claim 7 is characterized in that: A cross bracket (18) is fixed inside the delivery pipe (8) and the return pipe (16), and a one-way rubber sheet (19) is connected to the side of the cross bracket (18), and the curling direction of the one-way rubber sheet (19) can only be consistent with the flow direction of the hydraulic oil.

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