Pressure monitoring inflatable bridge expansion joint device
By introducing pressure and displacement monitoring devices into bridge expansion joints, the problem of untimely early warning of bridge expansion joints has been solved, achieving real-time monitoring and extending the service life of rubber strips, thus improving bridge safety and practicality.
Patent Information
- Application Number
- CN202410476521.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2026-02-03
AI Technical Summary
Existing bridge expansion joints lack monitoring capabilities, making it impossible to provide timely warnings of excessive displacement and pressure, leading to safety hazards.
A pressure-monitored inflatable bridge expansion joint device was designed, which includes pressure monitoring, expansion and displacement monitoring devices. It uses pressure sensors, air bladders and displacement sensors to monitor and alarm in real time, and combines an expansion joint structure composed of rubber belts and steel components.
It enables real-time pressure and displacement monitoring of bridge expansion joints, timely alarm and maintenance, extends the service life of rubber belts, and improves safety and practicality.
Smart Images
Figure CN121451501A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of bridge expansion joints, in particular to a pressure monitoring inflatable bridge expansion joint device. BACKGROUND
[0002] Bridge expansion joint refers to the requirement of bridge deck deformation, usually set expansion joint between two beam ends, beam end and abutment or hinge position of bridge, requires expansion joint to be free to expand in two directions parallel and perpendicular to the bridge axis, firm and reliable, when vehicles drive through, it should be smooth, no sudden jump and noise, and can prevent rainwater and garbage soil from seeping in and blocking, and it is simple and convenient to install, check, maintain and eliminate dirt, at the expansion joint, the railing and bridge deck pavement are disconnected, the function of bridge expansion joint is to adjust the displacement and connection between the superstructure caused by vehicle load and bridge building materials, once the expansion device of skew bridge is damaged, it will seriously affect the speed, comfort and safety of driving, and even cause driving safety accidents. The existing bridge expansion joint lacks monitoring function, when the displacement of the expansion joint is too large and the pressure on the expansion joint is too large, it cannot timely give early warning, so that the maintenance personnel cannot timely repair, which has certain safety hidden danger. SUMMARY
[0003] In view of the problems of the prior art, the present application provides a pressure monitoring inflatable bridge expansion joint device to solve the problems in the background art.
[0004] To solve the above problems, the present application realizes the technical scheme as follows: a pressure monitoring inflatable bridge expansion joint device, comprising a first steel member and a second steel member, the outer surfaces of the first steel member and the second steel member are fixedly connected with a connecting steel plate, the outer surface of the connecting steel plate is fixedly connected with an anchoring steel bar, the interiors of the first steel member and the second steel member are fixedly connected with a pressure monitoring device and an expansion device, the interiors of the first steel member and the second steel member are provided with a first groove, a second groove and a third groove, the third groove is arranged directly above the second groove, the interiors of the second groove and the third groove are provided with a displacement monitoring device, the pressure monitoring device comprises a telescopic bottom plate, the upper surface of the telescopic bottom plate is fixedly connected with a pressure sensor, the top of the pressure sensor is fixedly connected with a first moving seat and a second moving seat, the expansion device comprises a first rubber belt and a second rubber belt, the opposite surfaces of the first rubber belt and the second rubber belt are fixedly connected with an inflatable bag, the displacement monitoring device comprises a connecting sleeve and a moving plate, the outer surface of the moving plate is fixedly connected with a displacement sensor.
[0005] Preferably, the outer surface of the telescopic base plate is fixedly connected to the inner part of the first steel member and the second steel member, the recess in the first moving seat and the second moving seat is slidably connected with the telescopic plate, and the first moving seat is connected with the second moving seat through the telescopic plate.
[0006] Preferably, the first moving seat and the second moving seat are arranged above the first steel member and the second steel member, the lower surface of the first moving seat and the second moving seat is fixedly connected with the rubber ring, and the lower surface of the rubber ring is in contact with the upper surface of the first steel member and the second steel member.
[0007] Preferably, the outer surface of the first rubber belt and the second rubber belt is fixedly connected to the inner part of the first steel member and the second steel member, the edge of the lower surface of the first rubber belt is fixedly connected with the edge of the upper surface of the second rubber belt, the bottom of the air bag is fixedly connected with the air inlet pipe, the outer surface of the air inlet pipe penetrates through the second rubber belt, and the output end of the air inlet pipe is threadedly connected with the cover.
[0008] Preferably, the inner part of the connecting sleeve is provided with an inner groove, the output end of the displacement sensor is fixedly connected to the inner surface of the inner groove, and the outer surface of the moving plate is slidably connected to the inner surface of the inner groove.
[0009] Preferably, the inner part of the connecting sleeve and the moving plate is fixedly connected with the fixing rod, the top end of the fixing rod is extrudedly matched with the inner surface of the third groove, the bottom end of the fixing rod is fixedly connected with the limiting plate, the inner part of the limiting plate is threadedly connected with the mounting screw, and the output end of the mounting screw is threadedly connected with the screw hole at the bottom of the first steel member and the second steel member.
[0010] Preferably, the outer surface of the connecting sleeve is fixedly connected with the extension plate, the inner part of the extension plate is sleeved with the movable rod, the inner part of the moving plate is provided with the limiting hole, the number of the limiting hole is several, and the outer surface of the movable rod is extrudedly matched with the inner surface of the limiting hole.
[0011] Preferably, the outer surface of the movable rod is sleeved with the telescopic spring, the end of the telescopic spring is fixedly connected to the upper surface of the extension plate, the end, away from the extension plate, of the telescopic spring is fixedly connected to the outer surface of the movable rod, the lower surface of the connecting sleeve is fixedly connected with the buzzer, and the buzzer is electrically connected with the displacement sensor.
[0012] The present application provides a kind of compressed monitoring inflatable bridge expansion joint device. With the following beneficial effects: I. The pressure monitoring inflatable bridge expansion joint device, through the pressure monitoring device, the first moving seat and the second moving seat cooperate with the pressure sensor, the pressure received by the expansion joint can be monitored in real time, so that the maintenance personnel can timely repair when the expansion joint is damaged due to excessive pressure, and the safety of the expansion joint device is improved.
[0013] II. The pressure monitoring inflatable bridge expansion joint device, through the expansion device, the pressure inside the inflatable bag can be used to apply an opposite force to the first rubber belt and the second rubber belt in the deformation direction, which can avoid the situation that the first rubber belt and the second rubber belt are over-deformed after long-term use, leading to poor elasticity, and plays a certain protective role for the first rubber belt and the second rubber belt, thereby prolonging the service life of the device.
[0014] III. The pressure monitoring inflatable bridge expansion joint device, through the displacement monitoring device, on the one hand, the displacement sensor can be used to monitor the expansion and contraction amount of the expansion joint in real time, and when the expansion and contraction amount exceeds the set value, the buzzer alarm receives the signal and issues an alarm, so that the maintenance personnel can timely repair, on the other hand, the displacement monitoring device can be flexibly adjusted in length, and can be installed and disassembled, which is convenient for different width expansion joints, and improves the practicability of the bridge expansion joint device. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the whole application; Figure 2 It is a schematic diagram of the second perspective structure of the whole application; Figure 3 It is a schematic diagram of the cross-sectional structure of the whole application; Figure 4 It is a schematic diagram of the pressure monitoring device; Figure 5 It is a schematic diagram of the expansion device; Figure 6 It is a schematic diagram of the displacement monitoring device; Figure 7 It is a schematic diagram of the internal structure of the displacement monitoring device.
[0016] In the diagram: 1. First steel component; 2. Second steel component; 3. Connecting steel plate; 4. Anchoring steel bar; 5. Pressure monitoring device; 51. Telescopic base plate; 52. Pressure sensor; 53. First movable seat; 54. Second movable seat; 55. Telescopic plate; 56. Rubber ring; 6. Telescopic device; 61. First rubber belt; 62. Second rubber belt; 63. Inflatable bladder; 64. Air inlet pipe; 65. Cover; 7. First groove; 8. Second groove; 9. Displacement monitoring device; 901. Connecting sleeve; 902. Movable plate; 903. Fixed rod; 904. Limiting plate; 905. Mounting screw; 906. Internal groove; 907. Displacement sensor; 908. Buzzer alarm; 909. Limiting hole; 910. Extension plate; 911. Movable rod; 912. Telescopic spring; 10. Third groove. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose. Example
[0018] like Figures 1-7 As shown, the present invention provides a technical solution: a pressure-monitored inflatable bridge expansion joint device, comprising a first steel component 1 and a second steel component 2. A connecting steel plate 3 is fixedly connected to the outer surface of the first steel component 1 and the second steel component 2. An anchoring steel bar 4 is fixedly connected to the outer surface of the connecting steel plate 3. A pressure monitoring device 5 and an expansion joint 6 are fixedly connected inside the first steel component 1 and the second steel component 2. A first groove 7, a second groove 8, and a third groove 10 are formed inside the first steel component 1 and the second steel component 2. The third groove 10 is located directly above the second groove 8. The third groove 10 is equipped with a displacement monitoring device 9. The pressure monitoring device 5 includes a retractable base plate 51. A pressure sensor 52 is fixedly connected to the upper surface of the retractable base plate 51. A first movable seat 53 and a second movable seat 54 are fixedly connected to the top of the pressure sensor 52. The telescopic device 6 includes a first rubber belt 61 and a second rubber belt 62. An inflatable bladder 63 is fixedly connected between the opposite surfaces of the first rubber belt 61 and the second rubber belt 62. The displacement monitoring device 9 includes a connecting sleeve 901 and a movable plate 902. A displacement sensor 907 is fixedly connected to the outer surface of the movable plate 902.
[0019] Specifically, the edge side of the outer surface of the telescopic bottom plate 51 is fixedly connected inside the first steel member 1 and the second steel member 2, and the grooves inside the first moving seat 53 and the second moving seat 54 are slidably connected with the telescopic plate 55, and the first moving seat 53 is connected with the second moving seat 54 through the telescopic plate 55.
[0020] Specifically, the first moving seat 53 and the second moving seat 54 are arranged above the first steel member 1 and the second steel member 2, the lower surface of the first moving seat 53 and the second moving seat 54 is fixedly connected with the rubber ring 56, and the lower surface of the rubber ring 56 is in contact with the upper surface of the first steel member 1 and the second steel member 2.
[0021] Specifically, the edge side of the outer surface of the first rubber belt 61 and the second rubber belt 62 is fixedly connected inside the first steel member 1 and the second steel member 2, the edge side of the lower surface of the first rubber belt 61 is fixedly connected with the edge side of the upper surface of the second rubber belt 62, the bottom of the air bag 63 is fixedly connected with the air inlet pipe 64, the outer surface of the air inlet pipe 64 penetrates through the second rubber belt 62, and the output end of the air inlet pipe 64 is threadedly connected with the cover 65.
[0022] Specifically, the inside of the connecting sleeve shell 901 is provided with an inner groove 906, the output end of the displacement sensor 907 is fixedly connected to the inner surface of the inner groove 906, and the outer surface of the moving plate 902 is slidably connected to the inner surface of the inner groove 906.
[0023] Specifically, the inside of the connecting sleeve shell 901 and the moving plate 902 are fixedly connected with the fixed rod 903, the top end of the fixed rod 903 is extruded and matched with the inner surface of the third groove 10, the bottom end of the fixed rod 903 is fixedly connected with the limiting plate 904, the inside of the limiting plate 904 is threadedly connected with the mounting screw 905, and the output end of the mounting screw 905 is threadedly connected with the screw hole at the bottom of the first steel member 1 and the second steel member 2.
[0024] Specifically, the edge side of the outer surface of the connecting sleeve shell 901 is fixedly connected with the extension plate 910, the inside of the extension plate 910 is sleeved with the movable rod 911, the inside of the moving plate 902 is provided with a plurality of limiting holes 909, and the outer surface of the movable rod 911 is extruded and matched with the inner surface of the limiting hole 909.
[0025] Specifically, the outer surface of the movable rod 911 is sleeved with the telescopic spring 912, the end of the telescopic spring 912 is fixedly connected to the upper surface of the extension plate 910, the end of the telescopic spring 912 away from the extension plate 910 is fixedly connected to the outer surface of the movable rod 911, the lower surface of the connecting sleeve shell 901 is fixedly connected with the buzzer alarm 908, and the buzzer alarm 908 is electrically connected with the displacement sensor 907.
[0026] In use, when a vehicle passes over the expansion joint, the first moving seat 53 and the second moving seat 54 are subjected to downward pressure, and the rubber ring 56 is deformed under pressure, so that the pressure exerted by the vehicle is reduced by a portion of the elastic force of the rubber ring 56, so that the pressure on the expansion joint is reduced, and the remaining pressure acts on the pressure sensor 52, so that the pressure sensor 52 can monitor the pressure on the expansion joint in real time, so that when the expansion joint is damaged due to excessive pressure, maintenance personnel can timely repair.
[0027] By means of the expansion device 6, in use, the air bag 63 is inflated to a certain pressure through the air inlet pipe 64, so that the outer surface of the air bag 63 is in close contact with the outer surfaces of the first rubber belt 61 and the second rubber belt 62. When the expansion joint expands or contracts due to thermal expansion and contraction, the air bag 63 deforms together with the first rubber belt 61 and the second rubber belt 62. The elastic force of the air bag 63 when deformed can exert an action force on the first rubber belt 61 and the second rubber belt 62 in the opposite direction of the deformation direction, which can avoid the situation that the first rubber belt 61 and the second rubber belt 62 are excessively deformed after long-term use, resulting in poor elastic force, thereby prolonging the service life of the device.
[0028] By means of the displacement monitoring device 9, the fixed rod 903 on the connecting sleeve shell 901 is moved into the second groove 8 of the second steel member 2, and then the fixed rod 903 on the moving plate 902 is moved into the second groove 8 on the first steel member 1. The displacement monitoring device 9 is integrally moved upward, so that the top end of the fixed rod 903 extends into the third groove 10, the upper surface of the limiting plate 904 is in contact with the lower surfaces of the first steel member 1 and the second steel member 2, and then the mounting screw 905 is screwed into the corresponding screw holes in the lower surfaces of the first steel member 1 and the second steel member 2, thereby completing the installation of the displacement monitoring device 9. By pulling the movable rod 911 upward, the bottom of the movable rod 911 is separated from the limiting hole 909, the extension spring 912 is elongated and has elastic force, the moving plate 902 is controlled to move in extension and retraction to adjust the length of the displacement monitoring device 9 as a whole, until the length is adapted to the width of the expansion joint. The movable rod 911 is loosened, the elastic force of the extension spring 912 drives the movable rod 911 to move downward, so that the bottom of the movable rod 911 is inserted into the corresponding limiting hole 909, so that the moving plate 902 is limited at the current position. The displacement monitoring device 9 can be adjusted as needed to adapt to expansion joints of different widths. In the process of expansion and contraction of the expansion joint, the connecting sleeve shell 901 and the moving plate 902 are relatively displaced, the moving plate 902 moves along the inner surface of the inner groove 906, and the displacement sensor 907 is stretched under force, so that the expansion and contraction amount of the expansion joint can be monitored in real time. When the expansion and contraction amount exceeds the set value, the buzzer 908 receives a signal and issues an alarm, so that maintenance personnel can timely detect and repair.
[0029] Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, if not specifically described and limited.
Claims
1. A pressure-monitored inflatable bridge expansion joint device, comprising a first steel component (1) and a second steel component (2), characterized in that: A connecting steel plate (3) is fixedly connected to the outer surface of the first steel component (1) and the second steel component (2). An anchoring steel bar (4) is fixedly connected to the outer surface of the connecting steel plate (3). A pressure monitoring device (5) and a telescopic device (6) are fixedly connected inside the first steel component (1) and the second steel component (2). A first groove (7), a second groove (8) and a third groove (10) are provided inside the first steel component (1) and the second steel component (2). The third groove (10) is located directly above the second groove (8). A displacement monitoring device (9) is provided inside the second groove (8) and the third groove (10). The pressure... The monitoring device (5) includes a retractable base plate (51), on the upper surface of which a pressure sensor (52) is fixedly connected. The top of the pressure sensor (52) is fixedly connected to a first movable seat (53) and a second movable seat (54). The telescopic device (6) includes a first rubber belt (61) and a second rubber belt (62), and an inflatable bladder (63) is fixedly connected between the opposite surfaces of the first rubber belt (61) and the second rubber belt (62). The displacement monitoring device (9) includes a connecting sleeve (901) and a movable plate (902), on the outer surface of which a displacement sensor (907) is fixedly connected.
2. The pressure-monitoring inflatable bridge expansion joint device according to claim 1, characterized in that: The outer surface of the retractable base plate (51) is fixedly connected to the inside of the first steel member (1) and the second steel member (2). The grooves inside the first movable seat (53) and the second movable seat (54) are slidably connected to the telescopic plate (55). The first movable seat (53) and the second movable seat (54) are connected through the telescopic plate (55).
3. The pressure-monitoring inflatable bridge expansion joint device according to claim 1, characterized in that: The first movable seat (53) and the second movable seat (54) are disposed above the first steel member (1) and the second steel member (2). A rubber ring (56) is fixedly connected to the lower surface of the first movable seat (53) and the second movable seat (54). The lower surface of the rubber ring (56) is in contact with the upper surface of the first steel member (1) and the second steel member (2).
4. The pressure-monitoring inflatable bridge expansion joint device according to claim 1, characterized in that: The outer surfaces of the first rubber band (61) and the second rubber band (62) are fixedly connected to the inside of the first steel member (1) and the second steel member (2). The lower surface of the first rubber band (61) is fixedly connected to the upper surface of the second rubber band (62). An air inlet pipe (64) is fixedly connected to the bottom of the inflatable bag (63). The outer surface of the air inlet pipe (64) penetrates the second rubber band (62). The output end of the air inlet pipe (64) is threadedly connected to a cap (65).
5. A pressure-monitoring inflatable bridge expansion joint device according to claim 1, characterized in that: The connecting sleeve (901) has an internal groove (906) inside. The output end of the displacement sensor (907) is fixedly connected to the inner surface of the internal groove (906). The outer surface of the moving plate (902) is slidably connected to the inner surface of the internal groove (906).
6. A pressure-monitoring inflatable bridge expansion joint device according to claim 1, characterized in that: The connecting sleeve (901) and the moving plate (902) are both fixedly connected to a fixing rod (903). The top end of the fixing rod (903) is pressed and adapted to the inner surface of the third groove (10). The bottom end of the fixing rod (903) is fixedly connected to a limiting plate (904). The limiting plate (904) is threadedly connected to an installation screw (905). The output end of the installation screw (905) is threadedly connected to the screw hole at the bottom of the first steel component (1) and the second steel component (2).
7. A pressure-monitoring inflatable bridge expansion joint device according to claim 1, characterized in that: An extension plate (910) is fixedly connected to the side of the outer surface of the connecting sleeve (901). A movable rod (911) is sleeved inside the extension plate (910). A limiting hole (909) is opened inside the movable plate (902). There are several limiting holes (909). The outer surface of the movable rod (911) is squeezed and adapted to the inner surface of the limiting hole (909).
8. A pressure-monitoring inflatable bridge expansion joint device according to claim 7, characterized in that: A telescopic spring (912) is fitted on the outer surface of the movable rod (911). The end of the telescopic spring (912) is fixedly connected to the upper surface of the extension plate (910). The end of the telescopic spring (912) away from the extension plate (910) is fixedly connected to the outer surface of the movable rod (911). A buzzer alarm (908) is fixedly connected to the lower surface of the connecting sleeve (901). The buzzer alarm (908) is electrically connected to the displacement sensor (907).