Beam body stress distributed monitoring device and working method thereof

Abstract

The invention relates to the technical field of monitoring, and discloses a beam body stress distributed monitoring device and a working method thereof.The beam body stress distributed monitoring device comprises a line connecting plate, a control button, a signal transfer device, a monitoring host and detection pipes distributed and pre-embedded in a beam body. Hydraulic pressure is monitored through the detectors, hydraulic pressure data monitored by the four annular detectors are transmitted to the monitoring host, the shaking direction and the shaking strength of the gravity strip are monitored, comprehensiveness of stress monitoring is achieved, and when the beam body cracks, the shell stretches the rubber ring, so that the beam body cracks. The current enters the adjacent detector after being blocked to a certain extent on the resistance ring, the change of the voltage is transmitted into the monitoring host, the stress of the two beam bodies is monitored through the detection mechanism and the connecting mechanism, the multi-parameter integration effect is achieved, and the situation of monitoring disconnection is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of monitoring, in particular to a beam stress distributed monitoring device and a working method thereof. BACKGROUND

[0002] The traditional bridge structure stress monitoring scheme mainly adopts the discrete measuring point monitoring mode, through installing stress sensors at the key positions of the beam body of the bridge, regularly measuring and collecting data of the sensors, while the distributed monitoring device uses optical fibers as sensors, through uniformly laying or pre-embedding in the concrete of the beam body, the laid optical fibers are subjected to corresponding forces on the surface of the beam body of the bridge, thereby forming an optical signal, which is fed back to the monitoring host through the optical wave speed, and the size and relative position of the external force borne by the bridge can be determined through the identification and processing of the monitoring host. However, when the optical fiber is distributedly monitored, the breakage of the optical fiber at a position is easy to cause the monitoring interruption, and when the optical fiber monitors the shaking of the beam body of the bridge, only the shaking amplitude can be monitored, and the shaking direction cannot be monitored, so the monitoring is not comprehensive enough. SUMMARY

[0003] The present application provides a beam stress distributed monitoring device and a working method thereof, which overcomes the deficiencies described in the background art.

[0004] The technical scheme adopted by the present application to solve the technical problems is: A beam stress distributed monitoring device, comprising a line connection plate, a control button, a signal transfer device, a monitoring host and a detection tube pre-embedded in the beam body, the detection tube is electrically connected inside the signal transfer device, the signal transfer device is electrically connected to the line connection plate, the control button and the line connection plate are arranged on the same side of the monitoring host; The detection tube is provided with a detection mechanism, a connecting mechanism, a convex block, a shell and a gravity strip, the detection mechanism is arranged inside the shell, the connecting mechanism is arranged inside the shell, and the connecting mechanism is electrically connected to the detection mechanism on the left and right sides, the convex block is annularly arranged outside the shell, the gravity strip is located on the central axis of the shell, the detection mechanism is annularly arranged inside the shell, and the detection mechanisms are arranged and distributed with the connecting mechanism in between and pressed outside the gravity strip, when the beam body generates stress, the shell extrudes or stretches the connecting mechanism, and the gravity strip extrudes the detection mechanism.

[0005] A preferred technical scheme: the detection mechanism is provided with a connecting ring, a supporting block, a spring, a movable rod, a hydraulic device and a detector, the connecting ring is arranged outside the gravity strip, the movable rod slides in the connecting ring, the detector and the hydraulic device are arranged in the supporting block, the supporting block is arranged inside the shell, the movable rod is hydraulically pushed at the output end of the hydraulic device, the hydraulic pressure of the hydraulic device is monitored by the detector, the spring is arranged outside the movable rod, and the spring is respectively pressed between the connecting ring and the hydraulic device, the four detectors arranged in a ring are connected in parallel, and when the gravity strip shakes, the connecting ring drives the movable rod to translate.

[0006] A preferred technical scheme: the connecting ring is provided with an outer ring, a limiting rod and an inner ring, the outer ring and the inner ring rotate movably through the ball, the limiting rod is arranged on both sides of the movable rod and movably in a ring shape inside the outer ring, and the inner ring is arranged outside the gravity strip.

[0007] A preferred technical scheme: the connecting mechanism is provided with a moving structure, a hollow pipe, a rubber ring and a resistance ring, the hollow pipe is arranged between the detector and the moving structure, the moving structure is fixed inside the shell, the rubber ring is arranged between the shells, and the resistance ring is fixed inside the rubber ring, the moving structure moves on both ends of the resistance ring, when the shell is stretched, the two moving structures move reversely on the resistance ring and transmit power through the hollow pipe, the hollow pipe is internally provided with a data line, the data line penetrates the moving structure and the resistance ring, and the data line is connected with two adjacent detectors at both ends.

[0008] A preferred technical scheme: the moving structure is provided with a plastic block, a conductive plate, a rubber plate, a connecting block, a copper block and a hollow channel, the plastic block is arranged on one side of the conductive plate, the rubber plate is attached to the inner side of the plastic block, the conductive plate is internally provided with a circular block, the circular block is pressed against the resistance ring, the hollow channel is located in the middle of the copper block, the connecting block is arranged at the lower end of the copper block, the connecting block is fixed inside the shell, and the conductive plate is provided with two and symmetrically arranged on the side surface of the copper block.

[0009] A working method of a beam stress distribution monitoring device, applied to the beam stress distribution monitoring device, and comprising the following specific steps: S1: a plurality of detection tubes are arranged at various positions of the beam, after the monitoring host is turned on, signals transmitted by the detection tubes are received by the signal transducer, and the signals are processed and monitored in the monitoring host through the line connection plate; S2: when the detection tube is preset in the beam, the pressure value of the detection mechanism needs to be confirmed when the gravity strip is in a static state, and when the gravity strip shakes and the pressure changes, the signal is transmitted through the detector connected with the data line; S3: when the beam body shakes, the stress generated by the beam body makes the gravity strip shake, and then the gravity strip extrudes the movable rod through the connecting ring, the movable rod is extruded and then translates, so that the movable rod is hydraulically active in the hydraulic device, and when the hydraulic device is active under the pressure of the hydraulic pressure, the pressure value is detected by the detector, the four detectors in the ring collect the pressure change information of one of them, and then transmit the signal to the signal converter through the data line, and the detection mechanism arranged at each position detects the pressure. S4: when the beam body breaks, the shell displaces along with the beam body, so that the shell stretches the rubber ring and drives the two moving structures to move reversely, at this time, the conductive plate in the moving structure moves outside the resistance ring, the current passing through the resistance ring changes the resistance, and then the current change is transmitted to the adjacent detector through the hollow tube, and the current change is converted into the information of the breaking position and is transmitted to the monitoring host.

[0010] Compared with the prior art, the technical scheme has the following advantages: In the present application, under the shaking of the beam body, the gravity strip generates activity and extrudes the movable rod, and the extrusion of the gravity strip pushes the hydraulic device through the movable rod, and then the outer ring in the connecting ring drives the movable rod to move, and under the elastic reset of the spring, the movable rod continuously and repeatedly pushes the hydraulic device, and the hydraulic pressure is monitored by the detector, at this time, the hydraulic pressure data monitored by the four detectors in the ring is transmitted to the monitoring host, the monitoring host processes the information of the hydraulic pressure, and monitors the shaking direction and shaking degree of the gravity strip, so that the stress monitoring is comprehensive.

[0011] In the present application, when the beam body has a crack, the shell stretches the rubber ring, so that the two adjacent moving structures move reversely outside the resistance ring, so that the hollow tube coil passes through the moving structure to flow the current, the current is blocked on the resistance ring and then enters the adjacent detector, after the moving structure moves reversely, the resistance of the current passing through the resistance ring changes, and then the voltage changes, and the voltage change is monitored in the detector and transmitted to the monitoring host, the two beam body stresses are monitored by the detection mechanism and the connecting mechanism, the multi-parameter integration effect is realized, and the detection of the detection mechanism and the connecting mechanism at other positions is not affected when one position of the outer shell is damaged, so that the monitoring is not disconnected. BRIEF DESCRIPTION OF DRAWINGS

[0012] The present application will be further described below in combination with the drawings and examples.

[0013] Figure 1 It is the overall diagram of the present application.

[0014] Figure 2 It is a side view of the detection tube.

[0015] Figure 3 The plane view of the detection tube.

[0016] Figure 4 The plane view of the detection mechanism.

[0017] Figure 5 The side view of the connecting ring.

[0018] Figure 6 The side view of the connecting mechanism.

[0019] Figure 7 The perspective view of the moving structure.

[0020] In the figure: circuit connection plate-1, detection tube-2, control button-3, signal transferer-4, monitoring host-5, detection mechanism-21, connecting mechanism-22, convex block-23, shell-24, gravity strip-25, connecting ring-211, supporting block-212, spring-213, movable rod-214, hydraulic device-215, detector-216, outer ring-11, limiting rod-12, inner ring-13, moving structure-221, hollow tube-222, rubber ring-223, resistance ring-224, plastic block-41, conductive plate-42, rubber plate-43, connecting block-44, copper block-45, hollow channel-46. DETAILED DESCRIPTION

[0021] As shown in the figure, the present application proposes a beam stress distribution monitoring device, which comprises a circuit connection plate 1, a control button 3, a signal transferer 4, a monitoring host 5 and a detection tube 2 embedded in the beam. Figures 1 to 7 The detection tube 2 is electrically connected to the signal transferer 4, and the signal transferer 4 is electrically connected to the circuit connection plate 1. The control button 3 and the circuit connection plate 1 are arranged on the same side of the monitoring host 5. The detection tube 2 is provided with a detection mechanism 21, a connecting mechanism 22, a convex block 23, a shell 24 and a gravity strip 25. The detection mechanism 21 is arranged inside the shell 24, and the connecting mechanism 22 is arranged inside the shell 24 and electrically connected to the detection mechanism 21 on both sides. The convex block 23 is arranged in a ring shape outside the shell 24, and the gravity strip 25 is located on the central axis of the shell 24. The detection mechanism 21 is arranged in a ring shape inside the shell 24 and arranged and distributed with the connecting mechanism 22 in between and pressed outside the gravity strip 25. When the beam is stressed, the shell 24 extrudes or stretches the connecting mechanism 22, and the gravity strip 25 extrudes the detection mechanism 21.

[0022] The detection mechanism 21 is provided with a connecting ring 211, a supporting block 212, a spring 213, a movable rod 214, a hydraulic device 215 and a detector 216, the connecting ring 211 is arranged outside the gravity bar 25, the movable rod 214 slides in the connecting ring 211, the detector 216 and the hydraulic device 215 are arranged in the supporting block 212, the supporting block 212 is arranged inside the shell 24, the movable rod 214 is hydraulically pushed at the output end of the hydraulic device 215, the hydraulic device 215 is hydraulically monitored through the detector 216, the spring 213 is arranged outside the movable rod 214, and the two ends of the spring 213 are respectively pressed between the connecting ring 211 and the hydraulic device 215, the lines between the four detectors 216 arranged in a ring are connected in parallel, and when the gravity bar 25 shakes, the connecting ring 211 drives the movable rod 214 to translate.

[0023] Moreover, the outside of the detection tube 2 close to the signal transducer 4 is not provided with a convex block 23, and the detector 216 is composed of a pressure monitor, a data collector and a voltage sensor, the pressure monitor mainly monitors the hydraulic pressure of the hydraulic device 215, the data collector mainly collects and transmits the pressure data of the detectors 216 arranged along the shell 24 to the signal transducer 4, and the voltage sensor mainly collects and transmits the voltage change between the adjacent two detectors 216 to the signal transducer 4.

[0024] The connecting ring 211 is provided with an outer ring 11, a limiting rod 12 and an inner ring 13, the outer ring 11 and the inner ring 13 rotate movably through balls, the limiting rod 12 is arranged on both sides of the movable rod 214, and the limiting rod 12 movably surrounds the inner ring 11, the inner ring 13 is arranged outside the gravity bar 25, and when the gravity bar 25 tilts, the two movable rods 214 are driven to move by the outer ring 11.

[0025] Moreover, when the gravity bar 25 shakes, the inner ring 13 extrudes the outer ring 11, at this time, the four limiting rods 12 outside the outer ring 11 move in a circular manner, ensuring that the gravity bar 25 can be monitored in the first time when it shakes, and after the shaking ends, the spring 213 is used for elastic resetting, preventing the gravity bar 25 from being difficult to be monitored after stopping moving, and it is necessary to explain that, in the absence of external force, the gravity bar 25 remains static under the elasticity of the four springs 213 outside.

[0026] The connecting mechanism 22 is provided with a moving structure 221, a hollow tube 222, a rubber ring 223 and a resistance ring 224, the hollow tube 222 is arranged between the detector 216 and the moving structure 221, the moving structure 221 is fixed inside the shell 24, the rubber ring 223 is arranged between the shell 24, and the resistance ring 224 is fixed inside the rubber ring 223, the moving structure 221 is movable at both ends of the resistance ring 224, when the shell 24 is stretched, the two moving structures 221 are reversely movable on the resistance ring 224 and transmit power through the hollow tube 222, the hollow tube 222 is internally provided with a data line, the data line penetrates the moving structure 221 and the resistance ring 224, and the data line is respectively connected with two adjacent detectors 216 at both ends.

[0027] And the hollow tube 222 is internally provided with a coil, the coil is connected between the moving structure 221 and the detector 216, when the moving structure 221 rotates, the hollow tube 222 is slightly compressed and does not affect the stability of the circuit under the action of the coil.

[0028] The moving structure 221 is provided with a plastic block 41, a conductive plate 42, a rubber plate 43, a connecting block 44, a copper block 45 and a hollow channel 46, the plastic block 41 is arranged on one side of the conductive plate 42, the rubber plate 43 is attached to the inside of the plastic block 41, the conductive plate 42 is internally provided with a circular block, the circular block is used to press the resistance ring 224, the hollow channel 46 is located in the middle of the copper block 45, the connecting block 44 is arranged at the lower end of the copper block 45, the connecting block 44 is fixed inside the shell 24, and the conductive plate 42 is provided with two and symmetrically distributed on the side surface of the copper block 45.

[0029] When the shell 24 is bent, the moving structure 221 rotates and extrudes the rubber plate 43 through the conductive plate 42, the conductive plate 42 elastically abuts against the outside of the resistance ring 224 under the support of the plastic block 41, and the moving structure 221 is prevented from being separated from the resistance ring 224.

[0030] A working method of a beam body stress distribution type monitoring device is applied to the above-mentioned beam body stress distribution type monitoring device, and the working method comprises the following specific steps: S1: A plurality of detection tubes 2 are arranged at each part of the beam body, after the monitoring host 5 is turned on, the signals transmitted by the detection tube 2 are received by the signal transducer 4, and the signals are processed and monitored in the monitoring host 5 through the line connection plate 1; S2: When the detection tube 2 is preset in the beam body, the pressure value of the detection mechanism 21 needs to be confirmed when the gravity strip 25 is in a stationary state, and when the gravity strip 25 shakes and the pressure changes, the signal transmission is performed through the detector 216 connected with the data line; S3: When the beam body shakes, the stress generated by the beam body makes the gravity strip 25 shake, and then the gravity strip 25 extrudes the movable rod 214 through the connecting ring 211, the movable rod 214 is extruded and then translated, so that the movable rod 214 is hydraulically active in the hydraulic device 215, and when the hydraulic device 215 is active under the pressure of the hydraulic pressure, the pressure value is detected by the detector 216, the four annular detectors 216 collect the pressure change information into one, and then transmit the information to the signal converter 4 through the data line, and the arranged detection mechanism 21 detects the pressure of each position; S4: When the beam body breaks, the shell 24 moves with the beam body, so that the shell 24 stretches the rubber ring 223 and drives the two moving structures 221 to move reversely, at this time, the conductive plate 42 in the moving structure 221 moves outside the resistance ring 224, the current passing through the resistance ring 224 changes the resistance, and then the current change is transmitted to the adjacent detector 216 through the hollow tube 222 and is monitored, and then the current change is converted into the information of the breaking position and is transmitted to the monitoring host 5.

[0031] In the application, the detection pipe 2 is pre-set in the beam body, the detection mechanism 21 in the detection pipe 2 is arranged along the shell 24, when the beam body shakes, the convex block 23 drives the shell 24 to move, and under the shaking of the beam body, the gravity strip 25 generates activity and extrudes the movable rod 214, the extrusion of the gravity strip 25 makes the movable rod 214 push the hydraulic device 215, then the outer ring 11 in the connecting ring 211 drives the movable rod 214 to move, and under the elastic reset of the spring 213, the movable rod 214 continuously and repeatedly pushes the hydraulic device 215, and the hydraulic pressure is monitored by the detector 216, at this time, the hydraulic pressure data monitored by the four annular detectors 216 is transmitted to the monitoring host 5, the monitoring host 5 processes the information of the hydraulic pressure and monitors the shaking direction and shaking degree of the gravity strip 25, and the comprehensive stress monitoring is realized.

[0032] In the present application, when the beam body appears cracks, the shell 24 stretches the rubber ring 223, so that the two adjacent moving structures 221 move reversely outside the resistance ring 224, so that the coil of the hollow tube 222 passes through the moving structure 221 to pass current, and the current enters the adjacent detector 216 after being blocked on the resistance ring 224, and the resistance of the current passing through the resistance ring 224 changes after the moving structure 221 moves reversely, and then the voltage changes, and the voltage changes are monitored in the detector 216, and the voltage changes are transmitted to the monitoring host 5, the position of the shell 24 following the beam body fracture movement can be known by the voltage change, and then the beam body stress is monitored, and when the moving structure 221 moves, the elastic contact between the conductive plate 42 and the moving rod 214 is realized through the rubber plate 43, the conductive plate 42 passes through the copper block 45 to realize power flow, prevent the moving structure 221 from moving away from the resistance ring 224, and then the beam body fracture position is monitored, the two kinds of beam body stress are monitored through the detection mechanism 21 and the connecting mechanism 22, the multi-parameter integrated effect is realized, and the detection of the detection mechanism 21 and the connecting mechanism 22 is not affected after the damage of one position of the outer shell 24, and the monitoring is disconnected, so that the monitoring is disconnected.

[0033] The above is only a preferred embodiment of the present application, and therefore cannot limit the scope of the present application, that is, equivalent changes and modifications made according to the scope of the present application and the content of the specification should still be within the scope of the present application.

Claims

1. A distributed monitoring device for beam stress, characterized in that: It comprises a circuit connection board (1), a control button (3), a signal transfer device (4), a monitoring host (5), and a detection tube (2) pre-buried in a beam body, wherein the electrical signal of the detection tube (2) is connected to the interior of the signal transfer device (4), the electrical signal of the signal transfer device (4) is connected to the interior of the circuit connection board (1), and the control button (3) and the circuit connection board (1) are arranged on the same side of the monitoring host (5); The detection tube (2) is provided with a detection mechanism (21), a connecting mechanism (22), a convex block (23), a shell (24) and a gravity bar (25). The detection mechanism (21) is arranged on the inner side of the shell (24), the connecting mechanism (22) is arranged on the inner side of the shell (24), and the electrical signals on the left and right sides of the connecting mechanism (22) are connected in the detection mechanism (21). The convex block (23) is arranged in an annular manner on the outer side of the shell (24), and the gravity bar (25) is located on the central axis of the shell (24). The detection mechanism (21) is arranged in an annular manner on the inner side of the shell (24), and the detection mechanism (21) is arranged and distributed with the connecting mechanism (22) spaced apart. When the outer side of the gravity bar (25) is pressed and the beam body generates stress, the shell (24) squeezes or stretches the connecting mechanism (22) and causes the gravity bar (25) to squeeze the detection mechanism (21).

2. The beam stress distributed monitoring device according to claim 1, characterized in that: The detection mechanism (21) is provided with a connecting ring (211), a supporting block (212), a spring (213), a movable rod (214), a hydraulic device (215) and a detector (216); the connecting ring (211) is arranged outside the gravity bar (25); the movable rod (214) slides inside the connecting ring (211); the detector (216) and the hydraulic device (215) are arranged inside the supporting block (212); the supporting block (212) is arranged inside the housing (24); The movable rod (214) is hydraulically pushed at the output end of the hydraulic device (215), and the hydraulic pressure of the hydraulic device (215) is monitored by the detector (216). The spring (213) is arranged on the outside of the movable rod (214), and the two ends of the spring (213) are respectively pressed between the connecting ring (211) and the hydraulic device (215). The four detectors (216) distributed in an annular manner are connected in parallel. When the gravity bar (25) shakes, the movable rod (214) is driven to move horizontally through the connecting ring (211).

3. The beam stress distributed monitoring device according to claim 2, characterized in that: The connecting ring (211) is provided with an outer ring (11), a limiting rod (12) and an inner ring (13). The outer ring (11) and the inner ring (13) are rotatably movable via balls. The limiting rod (12) is arranged on both sides of the movable rod (214), and the limiting rod (12) is movable in a limited annular manner inside the outer ring (11). The inner ring (13) is arranged outside the gravity bar (25). When the gravity bar (25) tilts and moves, the two movable rods (214) are driven to move via the outer ring (11).

4. The beam stress distributed monitoring device according to claim 3, characterized in that: The connecting mechanism (22) is provided with a moving structure (221), a hollow tube (222), a rubber ring (223) and a resistance ring (224); the hollow tube (222) is arranged between the detector (216) and the moving structure (221); the moving structure (221) is fixed inside the housing (24); the rubber ring (223) is arranged between the housing (24), and the resistance ring (224) is fixed inside the rubber ring (223); the moving structure (221) moves at the left and right ends of the resistance ring (224); when the housing (24) is stretched, the two moving structures (221) move in opposite directions on the resistance ring (224) and transmit power through the hollow tube (222); a data line is provided inside the hollow tube (222); the data line passes through the moving structure (221) and the resistance ring (224); and the two ends of the data line are respectively connected to two adjacent detectors (216).

5. The beam stress distributed monitoring device according to claim 4, characterized in that: The movable structure (221) is provided with a plastic block (41), a conductive plate (42), a rubber plate (43), a connecting block (44), a copper block (45) and a hollow channel (46). The plastic block (41) is provided on one side of the conductive plate (42), and the rubber plate (43) is attached to the inner side of the plastic block (41). A circular block is provided on the inner side of the conductive plate (42), and the resistor ring (224) is pressed by the circular block. The hollow channel (46) is located in the middle of the copper block (45). The connecting block (44) is provided at the lower end of the copper block (45). The connecting block (44) is fixed on the inner side of the housing (24). Two conductive plates (42) are provided, and the conductive plates (42) are symmetrically distributed on the side of the copper block (45).

6. A method for operating a beam stress distributed monitoring device, applied to the beam stress distributed monitoring device according to claim 5, characterized in that: The working method includes the following specific steps: S1: A plurality of detection tubes (2) are arranged at various locations of the beam body. After the monitoring host (5) is turned on, the signal transmitted by the detection tubes (2) is received by the signal transferor (4). The signal enters the monitoring host (5) through the line connection board (1) for processing and monitoring; S2: When the detection tube (2) is preset on the beam, it is necessary to confirm the pressure value of the detection mechanism (21) when the gravity bar (25) is in a stationary state. When the gravity bar (25) shakes and a pressure change occurs, the detector (216) is connected to the data line for signal transmission; S3: When the beam body shakes, the stress generated by the beam body causes the gravity bar (25) to shake, and then the gravity bar (25) squeezes the movable rod (214) through the connecting ring (211). The movable rod (214) is squeezed and then moves horizontally, so that the movable rod (214) moves hydraulically in the hydraulic device (215). When the hydraulic device (215) is moved by the hydraulic pressure, the pressure value is detected by the detector (216). The four ring-shaped detectors (216) collect the pressure change information into one of them and transmit it to the signal transferor (4) through the data line. The arranged detection mechanism (21) performs pressure detection on each position; S4: When the beam breaks, the housing (24) moves along with the beam, thereby stretching the rubber ring (223) and driving the two moving structures (221) to move in the opposite direction. At this time, the conductive plate (42) in the moving structure (221) moves outside the resistance ring (224). The current passing through the resistance ring (224) will produce a resistance change, and the current change is transmitted to the adjacent detector (216) through the hollow tube (222) for monitoring. The current change is then converted into information on the fracture position and transmitted to the monitoring host (5).

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