A bridge displacement detection device

Abstract

The present application relates to a bridge displacement detection device, which includes a universal ball head device, a vertical displacement device, a fixing frame, a barometer, an alarm device, a bridge, a pier and a connecting rod, wherein the fixing frame is transversely fixed on the side wall of the pier, the vertical displacement device is arranged on the upper end face of the fixing frame, the universal ball head device is arranged on the lower end face of the bridge, the connecting rod connects the universal ball head device and the vertical displacement device, the universal ball head device can detect the horizontal displacement of the bridge and detect the vertical displacement by applying pressure or tension to the vertical displacement device through the connecting rod, the barometer and the alarm device are both arranged on the upper end face of the fixing frame, and are used to detect air pressure and alarm for abnormal situations, respectively. The present application has the effect of improving the accuracy and stability of bridge displacement detection, and realizing real-time monitoring and automatic alarm.

Description

Technical Field

[0001] The present application relates to the field of mechanical measurement, and in particular to a bridge displacement detection device. Background Art

[0002] With the advancement of infrastructure construction, bridge safety issues have received more and more attention. Existing bridge displacement detection methods mainly include total station measurement, GPS positioning, etc. Although these methods have high accuracy, they are complicated to operate and difficult to achieve real-time monitoring. At present, commonly used bridge displacement detection devices usually use laser ranging or ultrasonic ranging technology to calculate the displacement by measuring the distance change between the two ends of the bridge. Although the existing technology can realize the measurement of bridge displacement, it is greatly affected by environmental factors (such as wind and temperature), and the long-term stability needs to be improved. Summary of the invention

[0003] In order to improve the accuracy and stability of bridge displacement detection and realize real-time monitoring and automatic alarm, the present application provides a bridge displacement detection device.

[0004] The present application provides a bridge displacement detection device that adopts the following technical solution:

[0005] A bridge displacement detection device comprises a universal ball head device, a vertical displacement device, a fixing frame, a barometer, an alarm device, a bridge, a pier and a connecting rod, wherein the fixing frame is transversely fixed on the side wall of the pier, the vertical displacement device is arranged on the upper end surface of the fixing frame, the universal ball head device is arranged on the lower end surface of the bridge, the connecting rod connects the universal ball head device and the vertical displacement device, the universal ball head device can detect the horizontal displacement of the bridge and detect the vertical displacement by applying pressure or tension to the vertical displacement device through the connecting rod, the barometer and the alarm device are both arranged on the upper end surface of the fixing frame, and are respectively used to detect air pressure and alarm for abnormal conditions.

[0006] By adopting the above technical solution, the bridge displacement detection device is designed to monitor the horizontal and vertical displacement of the bridge. The universal ball head device is responsible for detecting the horizontal displacement of the bridge, while the connecting rod detects the vertical displacement by applying pressure or tension to the vertical displacement device, and the degree of angular displacement of the bridge is judged by the angle deviation between the universal ball head device and the vertical displacement device and the inclination of the connecting rod. The vertical displacement device is located on the upper end face of the fixing frame, and the fixing frame is transversely fixed to the side wall of the pier to ensure its firm installation on the pier. The barometer is responsible for monitoring the air pressure, while the alarm device is used to detect abnormal conditions and trigger an alarm. The overall device can provide a full range of bridge displacement information, which helps to timely discover and deal with potential structural problems and improve the safety and reliability of the bridge.

[0007] Optionally, the universal ball head device includes a fixed ball warehouse, a universal ball and a ball head seat, the fixed ball warehouse is fixedly arranged on the lower end surface of the bridge, the universal ball is rotatably arranged in the fixed ball warehouse, the outer wall of the universal ball is in contact with the inner wall of the fixed ball warehouse, and the ball head seat is fixed to the bottom of the fixed ball warehouse.

[0008] By adopting the above technical solution, the fixed ball bin is firmly installed on the lower end face of the bridge, and its function is to provide support and fixation. The universal ball is a sphere that can be rotatably set in the fixed ball bin, and its outer wall is tightly fitted with the inner wall of the fixed ball bin. This design allows the universal ball to rotate freely in the horizontal direction to adapt to the horizontal displacement of the bridge. The ball head seat is located at the bottom of the fixed ball bin, which plays a role of stability and support. The whole design enables the universal ball head device to detect the horizontal displacement of the bridge, because the free rotation of the universal ball in the fixed ball bin allows it to flexibly follow the horizontal movement of the bridge.

[0009] Optionally, the universal ball head device includes an outer sleeve, a sealing block, a friction sensor and a sealing groove, the outer sleeve is arranged on the periphery of the fixed ball warehouse, the sealing groove is arranged on the fixed ball warehouse and connected to the outer sleeve, the sealing block is arranged in the outer sleeve and cooperates with the sealing groove, the sealing block abuts the universal ball, the friction sensor is embedded in the surface of the sealing block, and the friction sensor is activated when the sealing block is subjected to the spherical rotation friction of the universal ball, and the friction sensor is connected to the operating platform signal.

[0010] By adopting the above technical solutions, the design of the universal ball head device adopts an outer sleeve, a sealing block, a friction sensor and a sealing groove, aiming to achieve sensitive monitoring of the horizontal displacement of the bridge. The outer sleeve is located outside the fixed ball chamber and provides a protective outer layer. The sealing groove is connected to the outer sleeve to form a channel. The sealing block is placed in the outer sleeve, matched with the sealing groove, and abutted against the universal ball to achieve sealing and connection. The friction sensor is connected to the sealing block, and the friction sensor is activated when the sealing block is subjected to the friction of the universal ball surface. This design can detect the horizontal displacement of the bridge by sensing the friction force on the sealing block. The friction sensor is connected to the signal of the operating platform, so that the system can transmit displacement information in real time and provide accurate data for structural monitoring. This device can help to detect the horizontal displacement of the bridge in time and improve the accuracy of structural monitoring.

[0011] Optionally, the vertical displacement device includes a fixed ball seat, a movable ball head, a global seat, a vertical rod and a sleeve, the sleeve is arranged on the upper end surface of the fixed frame, the fixed ball seat is fixedly arranged on the top of the sleeve, the vertical rod is arranged inside the sleeve, the global seat is fixedly arranged on the top of the vertical rod, the movable ball head is arranged inside the fixed ball seat, the movable ball head is rotatably arranged on the global seat, and the outer wall of the movable ball head is in contact with the upper end surface of the global seat.

[0012] By adopting the above technical solution, the sleeve is arranged on the upper end surface of the fixed frame, providing support for the fixing device. The fixed ball seat is firmly fixed on the top of the sleeve, providing support for the entire system. The vertical rod is arranged inside the sleeve, connecting the fixed ball seat and the global seat to ensure the stability of the device. The global seat is fixed on the top of the vertical rod, and the movable ball head is rotatably arranged in the fixed ball seat. The outer wall of the movable ball head fits with the upper end surface of the global seat. This design allows the movable ball head to rotate freely in the vertical direction. When the bridge undergoes vertical displacement, the movable ball head will follow the vertical movement and follow the rotation angle of the connecting rod, providing sensitive detection of the displacement. The overall design can accurately capture the vertical displacement information of the bridge, which is helpful for structural monitoring and maintenance.

[0013] Optionally, the vertical displacement device also includes a disc base, a limiting ring seat and a spring, the disc base is arranged at the bottom of the sleeve, the limiting ring seat is arranged at the inner center of the disc base, the inner diameter of the limiting ring seat is larger than the diameter of the vertical rod, the spring is arranged in the limiting ring seat, the vertical rod is arranged on the spring, and the outer wall of the bottom end of the vertical rod is in contact with the inner wall of the limiting ring seat.

[0014] By adopting the above technical solution, the disc base is located at the bottom of the sleeve, providing a stable foundation for the entire structure. The limiting ring seat is arranged at the inner center of the disc base, and its inner diameter is larger than the diameter of the vertical rod. This design ensures that the vertical rod can move freely in the limiting ring seat. The spring is arranged in the limiting ring seat, and the vertical rod is placed on the spring, so that the outer wall of the bottom end of the vertical rod fits with the inner wall of the limiting ring seat. The synergistic effect of these components makes the vertical rod have a certain elasticity in the vertical direction, which can better adapt to the vertical displacement of the bridge. When the bridge undergoes vertical displacement, the vertical rod can sensitively sense and follow the displacement through the action of the spring, thereby improving the sensitivity and stability of the device. The overall design ensures accurate monitoring of the vertical displacement of the bridge.

[0015] Optionally, the vertical displacement device further includes a rack, a gear and a signal device, wherein the rack is vertically arranged on the peripheral wall of the vertical rod, the gear is fixed in the sleeve, the gear and the rack are meshed, and the signal device is used to detect the rotation angle of the gear.

[0016] By adopting the above technical solution, the rack is vertically set on the peripheral wall of the vertical rod, and the gear is fixed in the sleeve. The design between the two allows the gear and the rack to mesh to form a transmission mechanism. This design enables the vertical displacement of the vertical rod to be transmitted to the gear through the gear and the rack. The signaler interacts with the gear and obtains information about the vertical displacement by sensing the rotational movement of the gear. The system can convert the displacement information into signal output through this mechanical transmission method. The role of the signaler is to transmit this information to the operating platform, realizing the monitoring and feedback of the vertical displacement of the bridge.

[0017] Optionally, the signaler includes a round-headed rod, a telescopic spring and a signal transmitter, the round-headed rod and the telescopic spring are fixedly connected, the telescopic spring is arranged inside the signal transmitter, the round-headed rod abuts against the gear, the gear rotates to drive the round-headed rod to reciprocate and telescopic motion, the telescopic spring contracts and releases to activate the signal transmitter, and the signal transmitter is connected to the operating platform signal.

[0018] By adopting the above technical solution, the round-headed rod is fixedly connected to the telescopic spring, and the telescopic spring is arranged inside the signal transmitter. The round-headed rod abuts and cooperates with the gear, and the rotation of the gear drives the round-headed rod to reciprocate and telescopic motion. The telescopic spring's telescopic process is synchronized with the reciprocating motion of the round-headed rod. When the telescopic spring contracts, it releases and activates the signal transmitter. The signal transmitter is connected to the operating platform signal, which means that the signal transmitter can convert the motion transmitted through the round-headed rod and the gear into an electrical signal for transmission to the operating platform. In this way, when the bridge undergoes vertical displacement, the rotation of the gear will cause the telescopic motion of the round-headed rod, which will eventually trigger the action of the telescopic spring, activate the signal transmitter, and send a signal to the operating platform.

[0019] Optionally, the air pressure gauge is provided with an air connecting pipeline, the other end of which is connected to the inner chamber of the limiting ring seat, and the air pressure gauge is used to detect the air pressure when the vertical rod moves telescopically in the limiting ring seat.

[0020] By adopting the above technical solution, the barometer is connected to the system through an air connection pipeline, wherein the other end of the air connection pipeline is connected to the inner chamber of the limit ring seat. The barometer is responsible for detecting the air pressure in the inner chamber of the limit ring seat. When the vertical rod undergoes telescopic movement during the vertical displacement process, this will cause the gas pressure in the limit ring seat to change. By detecting the change in gas pressure, the barometer can provide information about the telescopic movement state of the vertical rod. This information feedback can be used for system monitoring and structural health status assessment.

[0021] Optionally, the alarm device includes an audible and visual alarm, and the audible and visual alarm is signal-connected to the friction sensor and the signal transmitter.

[0022] By adopting the above technical solution, the friction sensor is used to sense the friction force on the sealing block. When an abnormal situation is found, the sensor will trigger an alarm signal. The signal transmitter is responsible for converting the abnormal situation found by the friction sensor into an electrical signal and transmitting it to the operating platform or other monitoring system. When the friction sensor and signal transmitter send an abnormal signal, the sound and light alarm will sound immediately. The sound and light alarm sends a clear alarm to relevant personnel through sound and light to remind them that the system has an abnormal situation.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The bridge displacement detection device is designed to monitor the horizontal and vertical displacement of the bridge. The universal ball head device is responsible for detecting the horizontal displacement of the bridge, while the connecting rod detects the vertical displacement by applying pressure or tension to the vertical displacement device. The degree of angular displacement of the bridge is determined by the angular deviation between the universal ball head device and the vertical displacement device and the degree of inclination of the connecting rod. The vertical displacement device is located on the upper end face of the fixing frame, and the fixing frame is laterally fixed to the side wall of the pier to ensure its firm installation on the pier. The barometer is responsible for monitoring the air pressure, while the alarm device is used to detect abnormal conditions and trigger an alarm. The overall device can provide a full range of bridge displacement information, which helps to promptly detect and deal with potential structural problems and improve the safety and reliability of the bridge;

[0025] 2. The design of the universal ball head device uses an outer sleeve, a sealing block, a friction sensor and a sealing groove, aiming to achieve sensitive monitoring of the horizontal displacement of the bridge. The outer sleeve is located outside the fixed ball chamber and provides a protective outer layer. The sealing groove connects the outer sleeve to form a channel. The sealing block is placed in the outer sleeve, cooperates with the sealing groove, and abuts against the universal ball to achieve sealing and connection. The friction sensor is connected to the sealing block, and the friction sensor is activated when the sealing block is subjected to the rotational friction of the spherical surface of the universal ball. This design can detect the horizontal displacement of the bridge by sensing the friction force on the sealing block. The friction sensor is connected to the operating platform signal, so that the system can transmit displacement information in real time and provide accurate data for structural monitoring. This device can help to detect the horizontal displacement of the bridge in a timely manner and improve the accuracy of structural monitoring;

[0026] 3. The disc base is located at the bottom of the sleeve, providing a stable foundation for the entire structure. The limiting ring seat is located at the inner center of the disc base, and its inner diameter is larger than the diameter of the vertical rod. This design ensures that the vertical rod can move freely in the limiting ring seat. The spring is arranged in the limiting ring seat, and the vertical rod is placed on the spring, so that the outer wall of the bottom end of the vertical rod fits with the inner wall of the limiting ring seat. The synergistic effect of these components makes the vertical rod have a certain elasticity in the vertical direction, which can better adapt to the vertical displacement of the bridge. When the bridge undergoes vertical displacement, the vertical rod can sensitively sense and follow the displacement through the action of the spring, thereby improving the sensitivity and stability of the device. The overall design ensures accurate monitoring of the vertical displacement of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a structural schematic diagram of a bridge displacement detection device according to an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the front cross-sectional structure of the bridge displacement detection device of the present application embodiment;

[0029] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0030] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. universal ball head device; 101. fixed ball bin; 102. outer sleeve; 103. sealing block; 104. friction sensor; 105. universal ball; 106. ball head seat; 107. sealing groove; 2. vertical displacement device; 201. fixed ball seat; 202. movable ball head; 203. round ball seat; 204. vertical rod; 205. sleeve; 206. disc base; 207. limit ring seat; 208. spring; 3. fixed frame; 4. barometer; 5. alarm device; 501. sound and light alarm; 6. bridge; 7. bridge pier; 8. connecting rod; 9. displacement signal device; 901. rack; 902. gear; 10. signal device; 1001. round head rod; 1002. telescopic spring; 1003. signal transmitter; 1004. pressure sensor; 11. gas connecting pipeline. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses a bridge displacement detection device.

[0034] Reference Figure 1 and Figure 2The bridge displacement detection device includes a universal ball head device 1, a vertical displacement device 2, a fixing frame 3, a barometer 4, an alarm device 5, a bridge 6, a pier 7 and a connecting rod 8. The universal ball head device 1 is located at the lower end surface of the bridge 6, and the universal ball head device 1 can sensitively detect the horizontal displacement of the bridge. The connecting rod 8 monitors the vertical displacement by applying pressure or tension to the vertical displacement device 2. The vertical displacement device 2 is located at the upper end surface of the fixing frame 3, which ensures its firm installation on the pier 7. Through the operation of the connecting rod 8, the vertical displacement of the bridge 6 can be sensed. The connecting rod 8 is responsible for connecting the universal ball head device 1 and the vertical displacement device 2, and transmits the displacement information of the bridge 6 through the rotation of the universal ball 105. The fixing frame 3 is laterally fixed on the side wall of the pier 7 to provide support for the vertical displacement device 2. The barometer 4 is used to monitor the air pressure changes in the limit ring seat 207 when the vertical rod 204 moves up and down. The alarm device 5 is equipped with an alarm function, which can trigger an alarm and provide a timely warning signal when an abnormal situation is detected.

[0035] Reference Figure 2 and Figure 3 The universal ball head device 1 includes a fixed ball bin 101, a universal ball 105 and a ball head seat 106. The fixed ball bin 101 is installed on the lower end surface of the bridge 6. Such a position enables the device to be firmly attached to the structure of the bridge 6, providing the necessary support and fixation. The universal ball 105 is a sphere that can be rotatably set in the fixed ball bin 101, and its outer wall is in contact with the inner wall of the fixed ball bin 101. This design allows the universal ball 105 to rotate freely in the horizontal direction to adapt to the horizontal displacement of the bridge 6. This ensures sensitive detection of horizontal displacement. The ball head seat 106 is fixed to the bottom of the fixed ball bin 101, and plays a stabilizing and supporting role. This helps to maintain the correct position of the universal ball 105 and ensures that it can accurately transmit the horizontal displacement of the bridge 6 during movement.

[0036] Reference Figure 2 and Figure 3The universal ball head device 1 includes an outer sleeve 102, a sealing block 103, a friction sensor 104 and a sealing groove 107. The outer sleeve 102 is located outside the fixed ball chamber 101, providing a protective outer layer to protect the internal components from environmental influences. The sealing groove 107 connects the outer sleeve 102 to form a channel. This design ensures that the inside of the outer sleeve 102 can be isolated from the environment, and at the same time, the sensor components can be isolated from the outside world to ensure its normal operation. The sealing block 103 is located in the outer sleeve 102 and cooperates with the sealing groove 107. The sealing block 103 abuts against the universal ball 105 to achieve sealing and connection of the universal ball 105. This ensures that the universal ball 105 can effectively transmit to the friction sensor 104 when it is displaced in the horizontal direction of the bridge 6. The friction sensor 104 is connected to the sealing block 103 and is responsible for sensing the friction force exerted on the sealing block 103. When the sealing block 103 is subjected to the friction of the spherical surface of the universal ball 105, the friction sensor 104 is activated. The friction sensor 104 is connected to the operating platform by signal connection, and transmits the sensed friction information to the operating platform. This means that the system can obtain the data of the horizontal displacement of the bridge 6 in real time, which helps to accurately monitor the state of the structure.

[0037] Reference Figure 2 , the vertical displacement device 2 includes a fixed ball seat 201, a movable ball head 202, a global seat 203, a vertical rod 204 and a sleeve 205. The sleeve 205 is arranged on the upper end surface of the fixed frame 3, providing support for the fixing device. This ensures the stability and firmness of the entire device. The fixed ball seat 201 is firmly fixed to the top of the sleeve 205, providing structural support for the entire system. This helps to ensure the firmness and reliability of the entire device during operation. The vertical rod 204 is arranged inside the sleeve 205, ensuring the overall connection of the vertical displacement device 2, so that it can stably respond to the vertical displacement of the bridge 6. The global seat 203 is fixed to the top of the vertical rod 204, ensuring the firm position of the connecting rod 8 in the system. The movable ball head 202 is rotatably arranged in the fixed ball seat 201, and its outer wall is in contact with the upper end surface of the global seat 203. This design allows the movable ball head 202 to rotate freely in the vertical direction, so that the movable ball head 202 can flexibly follow the vertical displacement of the bridge 6.

[0038] Reference Figure 2, the vertical displacement device 2 also includes a disc base 206, a limiting ring seat 207 and a spring 208. The disc base 206 is arranged at the bottom of the sleeve 205, providing a stable foundation for the entire structure. This ensures that the device can be firmly supported on the sleeve 205 during operation. The limiting ring seat 207 is located at the inner center of the disc base 206, and its inner diameter is larger than the diameter of the vertical rod 204. This design ensures that the vertical rod 204 can move freely in the limiting ring seat 207, so that the entire structure has a certain flexibility. The spring 208 is arranged in the limiting ring seat 207, providing elastic support for the vertical rod 204. The vertical rod 204 is placed on the spring 208, and the outer wall of the bottom end of the vertical rod 204 is in contact with the inner wall of the limiting ring seat 207. Such a design makes the vertical rod 204 have a certain elasticity in the vertical direction, which can better adapt to the vertical displacement of the bridge 6.

[0039] Reference Figure 2 and Figure 4 , the vertical displacement device 2 includes a displacement signal device 9 and a signal device 10. The displacement signal device 9 includes a rack 901 and a gear 902. The rack 901 is vertically arranged on the peripheral wall of the vertical rod 204 and is in the same direction as the vertical rod 204 to form a vertical transmission structure. Such a design enables the rack 901 to change with the vertical displacement of the vertical rod 204, providing a displacement signal. The gear 902 is fixed in the sleeve 205 as a part of the transmission mechanism. The gear 902 meshes with the rack 901 to form a mechanical connection for transmitting displacement. The design between the gear 902 and the rack 901 allows mutual meshing to form a transmission mechanism. When the vertical rod 204 undergoes vertical displacement, the rack 901 will drive the rotation of the gear 902 and transmit the displacement information to the gear 902. The signal device 10 interacts with the gear 902 and obtains information about the vertical displacement by sensing the rotational movement of the gear 902. This interaction can convert mechanical motion into electrical signals, realizing the electrical signal output of vertical displacement.

[0040] Reference Figure 2The signal device 10 includes a round rod 1001, a telescopic spring 1002 and a signal transmitter 1003. The round rod 1001 is fixedly connected to the telescopic spring 1002 to form an integral structure. This ensures that the movement of the telescopic spring 1002 can be transmitted to the signal transmitter 1003 through the round rod 1001. The telescopic spring 1002 is arranged inside the signal transmitter 1003 and abuts against the pressure sensor 1004 integrated in the signal transmitter 1003. The round rod 1001 abuts and cooperates with the gear 902, and the rotation of the gear 902 drives the reciprocating telescopic movement of the round rod 1001. This design makes the movement of the telescopic spring 1002 synchronized with the rotation of the gear 902, and transmits the mechanical movement to the signal transmitter 1003. The contraction and release of the telescopic spring 1002 activates the signal transmitter 1003. This means that when the bridge 6 undergoes vertical displacement, the rotation of the gear 902 will cause the reciprocating telescopic movement of the round rod 1001, which will eventually trigger the action of the telescopic spring 1002 and activate the pressure sensor 1004 integrated in the signal transmitter 1003. The signal transmitter 1003 is connected to the operating platform by signal, which means that the signal transmitter 1003 can convert the movement transmitted through the round rod 1001 and the gear 902 into an electrical signal for transmission to the operating platform. In this way, the operating platform can obtain information about the vertical displacement of the bridge 6 in real time.

[0041] Reference Figure 2 , the barometer 4 is provided with a gas connection pipeline 11. The barometer 4 is connected to the system through the gas connection pipeline 11, ensuring the continuity of gas transmission and detection. This pipeline is responsible for transmitting the pressure change of the gas to the barometer 4 for monitoring. The other end of the gas connection pipeline 11 is connected to the inner chamber of the limit ring seat 207. Such a design allows the barometer 4 to monitor the air pressure change of the gas in the limit ring seat 207, and the air pressure change of the inner chamber is usually related to the state of the vertical rod 204 when it is telescopically moving in the limit ring seat 207. When the vertical rod 204 telescopically moves during the vertical displacement process, the gas pressure in the limit ring seat 207 will change. The barometer 4 can reflect the telescopic movement state of the vertical rod 204 in real time by monitoring this air pressure change. The barometer 4 provides information about the telescopic movement state of the vertical rod 204 by detecting the change in gas pressure. This information feedback can be used for system monitoring, allowing the operating platform to understand the movement of the vertical rod 204, and then evaluate the health of the bridge 6 structure.

[0042] Reference Figure 2, the alarm device 5 includes an audible and visual alarm 501. The friction sensor 104 detects the friction force on the sealing block 103. When the universal ball 105 rotates in the fixed ball bin 101, it rubs against the sealing block 103, indicating that the bridge 6 has been displaced. After the friction sensor 104 detects an abnormal situation, the signal transmitter 1003 converts this information into an electrical signal so that it can be transmitted to other systems, such as an operating platform or a monitoring center. The audible and visual alarm 501 is connected to the signal transmitter 1003 to ensure that the audible and visual alarm 501 can respond quickly when an abnormal signal is received. When the friction sensor 104 detects an abnormal situation and transmits it to the audible and visual alarm 501 through the signal transmitter 1003, the latter will activate the sound and light alarm. This dual alarm method can provide intuitive and obvious warnings to ensure that relevant personnel can immediately detect abnormal conditions of the system.

[0043] The implementation principle of a bridge displacement detection device in the embodiment of the present application is as follows:

[0044] Start the bridge displacement detection system, ensure that the fixing frame 3 is firmly fixed on the side wall of the pier 7 horizontally, the sleeve 205 and its related components are correctly installed on the upper end surface of the fixing frame 3, and the universal ball 105 head device is fixed on the lower end surface of the bridge 6. When the bridge 6 is horizontally displaced, the sealing block 103 in the outer sleeve 102 is subjected to the friction of the spherical rotation, activating the friction sensor 104. The vertical displacement detection of the bridge 6 is realized by the telescopic movement of the vertical rod 204 in the sleeve 205. The barometer 4 is connected to the inner chamber of the limit ring seat 207 through the air connection pipeline 11, which is used to monitor the air pressure when the vertical rod 204 telescopically moves in the limit ring seat 207. The friction sensor 104 senses the change of friction force, and the signal transmitter 1003 converts this information into an electrical signal and transmits it to the alarm device 5. The alarm device 5 includes an audible and visual alarm 501. Once an abnormal signal is received, the audible and visual alarm 501 will sound immediately to remind relevant personnel that there is a problem with the system.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bridge displacement detection device, characterized in that: include: A universal ball head device (1), a vertical displacement device (2), a fixing frame (3), a barometer (4), an alarm device (5), a bridge (6), a pier (7) and a connecting rod (8), wherein the fixing frame (3) is transversely fixed on the side wall of the pier (7), the vertical displacement device (2) is arranged on the upper end surface of the fixing frame (3), the universal ball head device (1) is arranged on the lower end surface of the bridge (6), the connecting rod (8) connects the universal ball head device (1) and the vertical displacement device (2), the universal ball head device (1) can detect the horizontal displacement of the bridge and detect the vertical displacement by applying pressure or tension to the vertical displacement device (2) through the connecting rod (8), the barometer (4) and the alarm device (5) are connected to the vertical displacement device (2) and the connecting rod (8). The devices (5) are both arranged on the upper end surface of the fixed frame (3), and are used to detect air pressure and alarm for abnormal conditions respectively. The universal ball head device (1) comprises a fixed ball bin (101), a universal ball (105), an outer sleeve (102), a sealing block (103), a friction sensor (104), a sealing groove (107) and a ball head seat (106). The fixed ball bin (101) is fixedly arranged on the lower end surface of the bridge (6). The universal ball (105) is rotatably arranged in the fixed ball bin (101), and the outer wall of the universal ball (105) is in contact with the inner wall of the fixed ball bin (101). The ball head seat (106) is fixedly arranged at the bottom of the fixed ball bin (101). The outer sleeve (102) is arranged on the fixed The ball bin (101) is provided with a sealing groove (107) on the fixed ball bin (101) and is connected to the outer sleeve (102). The sealing block (103) is provided in the outer sleeve (102) and cooperates with the sealing groove (107). The sealing block (103) abuts against the universal ball (105). The friction sensor (104) is connected to the sealing block (103). When the sealing block (103) is subjected to the spherical rotation friction of the universal ball (105), the friction sensor (104) is activated. The friction sensor (104) is connected to the operating platform signal. The vertical displacement device (2) comprises a fixed ball seat (201), a movable ball head (202), a global seat (203), A vertical rod (204) and a sleeve (205), wherein the sleeve (205) is arranged on the upper end surface of the fixed frame (3), the fixed ball seat (201) is fixedly arranged on the top of the sleeve (205), the vertical rod (204) is arranged inside the sleeve (205), the global seat (203) is fixedly arranged on the top of the vertical rod (204), the movable ball head (202) is arranged inside the fixed ball seat (201), the movable ball head (202) is rotatably arranged on the global seat (203), and the outer wall of the movable ball head (202) is in contact with the upper end surface of the global seat (203), and the vertical displacement device (2) also includes a rack (901), a gear (902) and a signal device (10).The rack (901) is vertically arranged on the peripheral wall of the vertical rod (204); the gear (902) is fixedly arranged in the sleeve (205); the gear (902) and the rack (901) are meshed; the signal device (10) interacts with the gear (902); the signal device (10) comprises a round-headed rod (1001), a telescopic spring (1002) and a signal transmitter (1003); the round-headed rod (1001) and the telescopic spring (1002) are The telescopic spring (1002) is fixedly connected, the telescopic spring (1002) is arranged inside the signal transmitter (1003), the round head rod (1001) abuts against the gear (902), the gear (902) rotates to drive the round head rod (1001) to reciprocate and telescopic motion, the telescopic spring (1002) contracts and releases to activate the signal transmitter (1003), and the signal transmitter (1003) is connected to the operating platform signal.

2. A bridge displacement detection device according to claim 1, characterized in that: The vertical displacement device (2) further comprises a disc base (206), a limiting ring seat (207) and a spring (208); the disc base (206) is arranged at the bottom of the sleeve (205); the limiting ring seat (207) is arranged at the inner center of the disc base (206); the inner diameter of the limiting ring seat (207) is greater than the diameter of the vertical rod (204); the spring (208) is arranged in the limiting ring seat (207); the vertical rod (204) is arranged on the spring (208); and the outer wall of the bottom end of the vertical rod (204) is in contact with the inner wall of the limiting ring seat (207).

3. A bridge displacement detection device according to claim 2, characterized in that: The air pressure gauge (4) is provided with an air connection pipeline (11), the other end of which is connected to the inner chamber of the limiting ring seat (207). The air pressure gauge (4) is used to detect the air pressure when the vertical rod (204) is telescopically moving in the limiting ring seat (207).

4. A bridge displacement detection device according to claim 3, characterized in that: The alarm device (5) comprises an audible and visual alarm (501), and the audible and visual alarm (501) is signal-connected to the friction sensor (104) and the signal transmitter (1003).

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