Intelligent monitoring and early warning bridge expansion joint

Abstract

The utility model discloses a kind of leakage intelligent monitoring early warning bridge expansion joint, belong to bridge expansion joint technical field, including the special-shaped steel of mirror image symmetry arrangement, first waterstop, second waterstop and third waterstop are sequentially arranged from top to bottom between two the special-shaped steel, detection assembly is arranged between the first waterstop and second waterstop, the special-shaped steel side wall is provided with positioning assembly, the detection assembly is fixed with the special-shaped steel by positioning assembly, the detection assembly includes first water guide strip and second water guide strip of mirror image installation in two the opposite side of the special-shaped steel, first water guide strip and second water guide strip all extend along the length direction of the special-shaped steel;The leakage intelligent monitoring early warning bridge expansion joint changes traditional artificial inspection mode, so that staff can quickly know leakage condition and handle, greatly improve the response efficiency of leakage problem, reduce the risk of bridge structure damaged due to leakage.

Description

Technical Field

[0001] This utility model specifically relates to a bridge expansion joint with intelligent monitoring and early warning of leakage, belonging to the technical field of bridge expansion joints. Background Technology

[0002] Bridge expansion joints are expansion devices typically installed between the ends of two beams, between a beam end and an abutment, or at hinged joints of the bridge to accommodate bridge deck deformation. Waterstops are crucial waterproofing components within bridge expansion joints, preventing rainwater and snowmelt from seeping into the bridge structure and causing corrosion and damage to the bridge beams and supports.

[0003] However, during long-term use, waterstops are prone to damage and cracking due to factors such as vehicle load, temperature changes, and aging, leading to leaks. Currently, the detection of waterstop leaks mainly relies on regular manual inspections. This method has problems such as long inspection cycles, high missed detection rates, and delayed leak detection. By the time a leak is discovered, it has often already caused some damage to the bridge structure, increasing maintenance costs and potentially affecting the bridge's service life and traffic safety. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a smart monitoring and early warning system for bridge expansion joints that can detect and prevent leakage.

[0005] A bridge expansion joint with intelligent monitoring and early warning for leakage includes irregularly shaped steel sections arranged in a mirror-symmetric manner. A first waterstop, a second waterstop, and a third waterstop are arranged sequentially from top to bottom between two irregularly shaped steel sections. A detection component is arranged between the first and second waterstops. A positioning component is arranged on the side wall of the irregularly shaped steel section. The detection component is fixed to the irregularly shaped steel section through the positioning component. The detection component includes a first water guide strip and a second water guide strip installed in a mirror manner on opposite sides of the two irregularly shaped steel sections. The first and second water guide strips extend along the length direction of the irregularly shaped steel section. A water-absorbing sponge and a mounting shell are connected together between the first and second water guide strips. A water-sensitive sensor is installed inside the mounting shell. The detection end of the water-sensitive sensor contacts the bottom surface of the water-absorbing sponge.

[0006] Furthermore, a first receiving groove and a second receiving groove are formed between the two shaped steel sections, with the first receiving groove located above the second receiving groove. The first waterstop is installed in the first receiving groove, and the second waterstop is installed in the second receiving groove.

[0007] Furthermore, side plates are installed on opposite sides of both of the shaped steel sections, and the third waterstop is installed between the two side plates, the third waterstop being U-shaped.

[0008] Furthermore, the side plate extends along the length of the profiled steel, and multiple locking bolts are threaded onto the side plate. The third waterstop is fixed to the side plate by the locking bolts.

[0009] Furthermore, a communication module and a control module are also installed inside the mounting housing, and both the communication module and the water sensor are electrically connected to the control module.

[0010] Furthermore, each of the first and second water guide strips has an extension connected to one end. The extension has an angle with the first and second water guide strips. A positioning rod is installed on the outer wall of the mounting shell. An opening is provided on the extension for the positioning rod to pass through. The end of the positioning rod away from the mounting shell passes through the opening to limit the mounting shell to the extension.

[0011] Furthermore, a third receiving groove is provided on the inner wall of each of the two shaped steel sections on opposite sides, and the ends of the first water guide strip and the second water guide strip that are separated are installed in the third receiving groove.

[0012] Furthermore, the positioning component includes a wedge-shaped strip slidably mounted on the profiled steel. An installation groove is formed on the inner wall of the profiled steel. The wedge-shaped strip is slidably connected inside the installation groove. The wedge-shaped strip extends along the length direction of the profiled steel. An adjusting bolt is also rotatably mounted inside the installation groove. The wedge-shaped strip is threadedly connected to the adjusting bolt. A pressure rod is also slidably mounted on the side wall of the installation groove. Multiple pressure rods are equidistantly arranged along the length direction of the wedge-shaped strip. One end of the pressure rod extends into the interior of the installation groove and abuts against the inclined surface of the wedge-shaped strip. The other end of the pressure rod extends into the interior of the third receiving groove and abuts against the outer walls of the first and second water guide strips.

[0013] Beneficial effects: 1. This utility model features a multi-layered waterproof barrier formed by the first to third waterstops, effectively preventing water leakage. The first and second water guide strips of the detection component guide the leaking water to the absorbent sponge. After detection by the water-sensitive sensor, early warning information is promptly sent through the control and communication modules. The coordinated operation of these structures changes the traditional manual inspection mode, allowing staff to quickly identify and address leaks, significantly improving the efficiency of handling leakage problems and reducing the risk of bridge structural damage due to leakage. 2. In this utility model, the positioning component uses adjusting bolts, wedge-shaped strips, and pressure rods to fix the first and second water guide strips. The extension part is fixed to the positioning rod to install the housing, and locking bolts are used to fix the third waterstop, ensuring that all components work stably under bridge vibration, vehicle loads, and other conditions. At the same time, the multiple waterstops and robust detection structure reduce leakage damage to the bridge, thereby extending the service life of both the device and the bridge. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 For along Figure 3 A schematic diagram of the cross-sectional structure along the center section AA; Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 for Figure 4 Enlarged view of the structure at point B; Figure 7 This is a front view schematic diagram of the detection component in this utility model; Figure 8 This is a bottom view of the detection component in this utility model.

[0015] In the diagram: 1. Special-shaped steel; 2. First receiving groove; 3. Second receiving groove; 4. First waterstop; 5. Second waterstop; 6. Side plate; 7. Third waterstop; 8. Detection component; 81. First water guide strip; 82. Second water guide strip; 83. Water-absorbing sponge; 84. Extension; 85. Mounting shell; 86. Positioning rod; 87. Communication module; 88. Control module; 89. Water sensor; 9. Locking bolt; 10. Third receiving groove; 11. Mounting groove; 12. Wedge strip; 13. Pressing rod; 14. Adjusting bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-8As shown, a bridge expansion joint with intelligent monitoring and early warning of leakage includes irregularly shaped steel 1 arranged in a mirror symmetrical manner. A first waterstop 4, a second waterstop 5, and a third waterstop 7 are arranged sequentially from top to bottom between the two irregularly shaped steel 1. A detection component 8 is arranged between the first waterstop 4 and the second waterstop 5. A positioning component is arranged on the side wall of the irregularly shaped steel 1. The detection component 8 is fixed to the irregularly shaped steel 1 through the positioning component. The detection component 8 includes a first water guide strip 81 and a second water guide strip 82 installed in a mirror image on opposite sides of the two irregularly shaped steel 1. The first water guide strip 81 and the second water guide strip 82 both extend along the length direction of the irregularly shaped steel 1. A water-absorbing sponge 83 and a mounting shell 85 are connected together between the first water guide strip 81 and the second water guide strip 82. A water-sensitive sensor 89 is installed inside the mounting shell 85. The detection end of the water-sensitive sensor 89 contacts the bottom surface of the water-absorbing sponge 83.

[0018] Specifically, a first waterstop 4, a second waterstop 5, and a third waterstop 7, arranged sequentially from top to bottom between the two irregularly shaped steel sections 1, form a multi-layered waterproof barrier that effectively prevents water leakage. When the first waterstop 4 leaks, water seeps downwards to the detection component 8 between the first and second waterstops 4 and 5. In the detection component 8, the first water guide strip 81 and the second water guide strip 82, mirror-mounted on opposite sides of the two irregularly shaped steel sections 1, guide the leaking water to the absorbent sponge 83 between them. After the absorbent sponge 83 absorbs the water, the water-sensitive sensor 89 inside the mounting housing 85, which is in constant contact with it, detects the water and sends a corresponding signal to monitor the leakage. Simultaneously, the detection component 8 is fixed to the irregularly shaped steel section 1 via positioning components on its sidewall, ensuring the stability of its installation.

[0019] As a technical optimization of this utility model, a first receiving groove 2 and a second receiving groove 3 are formed between two irregular steel 1s. The first receiving groove 2 is located above the second receiving groove 3. A first waterstop 4 is installed in the first receiving groove 2, and a second waterstop 5 is installed in the second receiving groove 3.

[0020] Specifically, the first receiving groove 2 and the second receiving groove 3 formed between the two irregular steel sections 1 provide installation space for the first waterstop 4 and the second waterstop 5. The first waterstop 4 is installed in the upper first receiving groove 2, and the second waterstop 5 is installed in the lower second receiving groove 3. This installation method can block leakage at different heights. When water breaks through the first waterstop 4, the second waterstop 5 can further block it.

[0021] As a technical optimization of this utility model, side plates 6 are installed on opposite sides of the two irregular steel 1, and a third waterstop 7 is installed between the two side plates 6. The third waterstop 7 is U-shaped.

[0022] Specifically, the side plates 6 installed on opposite sides of the two irregular steel 1 provide the installation base for the third waterstop 7. The U-shaped third waterstop 7 is installed between the two side plates 6. When the water breaks through the first waterstop 4 and the second waterstop 5, the U-shaped third waterstop 7 can effectively intercept and divert the water, preventing the water from continuing to seep downward into the interior of the bridge structure.

[0023] As a technical optimization of this utility model, the side plate 6 extends along the length of the special-shaped steel 1, and multiple locking bolts 9 are threadedly connected to the side plate 6. The third waterstop 7 is fixed to the side plate 6 by the locking bolts 9.

[0024] Specifically, the side plate 6 extends along the length of the special-shaped steel 1, and multiple locking bolts 9 threaded on it pass through the third waterstop 7, firmly fixing the third waterstop 7 to the side plate 6. When the bridge is affected by vehicle loads, temperature changes, etc., it can prevent the third waterstop 7 from separating from the side plate 6, ensuring that the water-stopping function of the third waterstop 7 is properly performed.

[0025] As a technical optimization of this utility model, a communication module 87 and a control module 88 are also installed inside the mounting shell 85. The communication module 87 and the water sensor 89 are both electrically connected to the control module 88.

[0026] Specifically, the communication module 87 inside the housing 85 works in conjunction with the control module 88 and the water sensor 89. When the water sensor 89 detects a leakage signal, it transmits the signal to the control module 88. After processing the signal, the control module 88 sends the leakage information to the relevant monitoring terminal through the communication module 87 to realize the early warning function.

[0027] As a technical optimization of this utility model, the first water guide strip 81 and the second water guide strip 82 are each connected to an extension 84 at opposite ends. There is an angle between the extension 84 and the first water guide strip 81 and the second water guide strip 82. A positioning rod 86 is installed on the outer wall of the mounting shell 85. An opening is provided on the extension 84 for the positioning rod 86 to pass through. The end of the positioning rod 86 away from the mounting shell 85 passes through the opening to limit the mounting shell 85 on the extension 84.

[0028] Specifically, the extension 84 at the opposite end of the first water guide strip 81 and the second water guide strip 82 provides mounting support for the mounting shell 85. The positioning rod 86 on the outer wall of the mounting shell 85 passes through the opening on the extension 84 and limits the mounting shell 85 to the extension 84, ensuring the stability of the mounting shell 85 and the internal components such as the water sensor 89, communication module 87 and control module 88, so that they will not be displaced under conditions such as bridge vibration, and ensuring that each component can work normally.

[0029] As a technical optimization of this utility model, a third receiving groove 10 is provided on the inner wall of the two irregular steel 1 on opposite sides, and the ends of the first water guide strip 81 and the second water guide strip 82 that are separated are installed in the third receiving groove 10.

[0030] Specifically, the third receiving groove 10 on the inner wall of the two irregular steel 1 on opposite sides provides an installation position for the first water guide strip 81 and the second water guide strip 82, so that the first water guide strip 81 and the second water guide strip 82 can extend stably along the length of the irregular steel 1, ensuring that they can effectively guide the water leaked from the first waterstop 4 to the water-absorbing sponge 83.

[0031] As a technical optimization of this utility model, the positioning component includes a wedge-shaped strip 12 slidably mounted on the profiled steel 1. An installation groove 11 is provided on the inner wall of the profiled steel 1. The wedge-shaped strip 12 is slidably connected to the inside of the installation groove 11. The wedge-shaped strip 12 extends along the length direction of the profiled steel 1. An adjusting bolt 14 is also rotatably mounted inside the installation groove 11. The wedge-shaped strip 12 is threadedly connected to the adjusting bolt 14. A pressing rod 13 is also slidably mounted on the side wall of the installation groove 11. Multiple pressing rods 13 are equidistantly arranged along the length direction of the wedge-shaped strip 12. One end of the pressing rod 13 extends into the inside of the installation groove 11 and abuts against the inclined surface of the wedge-shaped strip 12. The other end of the pressing rod 13 extends into the inside of the third receiving groove 10 and abuts against the outer wall of the first water guide strip 81 and the second water guide strip 82.

[0032] Specifically, when it is necessary to fix the first water guide strip 81 and the second water guide strip 82, the adjusting bolt 14 in the mounting groove 11 on the inner wall of the special-shaped steel 1 is rotated. The wedge strip 12 threaded on the adjusting bolt 14 will slide along the mounting groove 11. The inclined surface of the wedge strip 12 pushes the pressure rod 13 slidably installed on the side wall of the mounting groove 11, so that the other end of the pressure rod 13 extends into the third receiving groove 10 and abuts against the outer wall of the first water guide strip 81 and the second water guide strip 82, thereby firmly fixing the first water guide strip 81 and the second water guide strip 82.

[0033] This intelligent monitoring and early warning system for bridge expansion joints combines a multi-layered waterproofing structure with intelligent detection components to achieve real-time monitoring and early warning of leakage. The specific working principle is as follows: A mirror-symmetrically arranged irregular steel 1 forms the basic frame. A first receiving groove 2 and a second receiving groove 3 are formed between the two irregular steel 1s. A first waterstop 4 is installed in the first receiving groove 2, and a second waterstop 5 is installed in the second receiving groove 3. A U-shaped third waterstop 7 is installed between the side plates 6 installed on opposite sides of the two irregular steel 1s. These three waterstops, at different locations and levels, block water, forming multiple waterproof barriers and greatly reducing the possibility of water leakage.

[0034] As the core monitoring component, the installation and operation of the detection component 8 are particularly crucial. The detection component 8 is fixed to the shaped steel 1 via a positioning component and positioned between the first waterstop 4 and the second waterstop 5, precisely between the first and second waterproof barriers, enabling it to promptly detect any potential leakage from the first waterstop 4. The first water guide strip 81 and the second water guide strip 82 in the detection component 8 are mirror images of each other on opposite sides of the two shaped steel 1s, both extending along the length of the shaped steel 1. They are connected by an absorbent sponge 83 and a mounting shell 85. The water-sensitive sensor 89 inside the mounting shell 85 contacts the bottom surface of the absorbent sponge 83. When the first waterstop 4 is damaged or cracked, causing leakage, the water passing through the first waterstop 4 is guided by the first and second water guide strips 81 and 82 to the absorbent sponge 83. After absorbing the water, the absorbent sponge 83 undergoes a change in state, which is quickly detected by the water-sensitive sensor 89 in real time, and the signal is transmitted to the control module 88 inside the mounting shell 85.

[0035] After receiving the signal from the water-sensitive sensor 89, the control module 88 sends the leakage information to the relevant monitoring terminal via the communication module 87, thereby achieving timely early warning. Simultaneously, the positioning component ensures the stability and accuracy of the detection component 8's installation. The wedge-shaped strip 12, slidably mounted on the shaped steel 1, moves under the action of the adjusting bolt 14, pushing the pressure rod 13 to press and fix the first water guide strip 81 and the second water guide strip 82, ensuring that the detection component 8's detection accuracy is not affected by vibration or displacement during the bridge expansion joint's operation.

[0036] Furthermore, the third waterstop 7 is fixed to the side plate 6 by locking bolts 9, further enhancing the overall waterproof effect. Even if a small amount of water passes through the second waterstop 5, the third waterstop 7 can still provide a final barrier. The extension 84 connecting the opposite ends of the first water guide strip 81 and the second water guide strip 82, and the outer wall of the mounting shell 85, through the cooperation of the positioning rod 86 and the extension 84, ensure the stable installation of the mounting shell 85 and its internal components, guaranteeing the continuity and reliability of the testing work.

[0037] In summary, this bridge expansion joint, through the physical barrier of multiple waterstops, the rapid capture and signal transmission of leaking water by the detection components, and the stable fixation of each component by the positioning components, forms a complete intelligent leakage monitoring and early warning system. It can promptly detect leakage of the waterstops and issue early warnings, facilitating timely handling by staff and effectively protecting the safety of the bridge structure.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bridge expansion joint with intelligent monitoring and early warning for leakage, comprising irregularly shaped steel (1) arranged in a mirror-symmetrical manner, characterized in that: A first waterstop (4), a second waterstop (5), and a third waterstop (7) are arranged sequentially from top to bottom between the two shaped steels (1). A detection component (8) is arranged between the first waterstop (4) and the second waterstop (5). A positioning component is arranged on the side wall of the shaped steel (1). The detection component (8) is fixed to the shaped steel (1) through the positioning component. The detection component (8) includes a first water guide strip (81) and a second water guide strip (82) installed in a mirror image on opposite sides of the two shaped steels (1). The first water guide strip (81) and the second water guide strip (82) both extend along the length direction of the shaped steel (1). A water-absorbing sponge (83) and a mounting shell (85) are connected together between the first water guide strip (81) and the second water guide strip (82). A water-sensitive sensor (89) is installed inside the mounting shell (85). The detection end of the water-sensitive sensor (89) contacts the bottom surface of the water-absorbing sponge (83).

2. The bridge expansion joint with intelligent monitoring and early warning of leakage as described in claim 1, characterized in that: A first receiving groove (2) and a second receiving groove (3) are formed between the two shaped steels (1), the first receiving groove (2) is located above the second receiving groove (3), the first waterstop (4) is installed in the first receiving groove (2), and the second waterstop (5) is installed in the second receiving groove (3).

3. The bridge expansion joint with intelligent monitoring and early warning of leakage as described in claim 1, characterized in that: Side plates (6) are installed on opposite sides of the two shaped steels (1), and the third waterstop (7) is installed between the two side plates (6). The third waterstop (7) is U-shaped.

4. The bridge expansion joint with intelligent monitoring and early warning of leakage as described in claim 3, characterized in that: The side plate (6) extends along the length of the profiled steel (1), and a plurality of locking bolts (9) are threaded onto the side plate (6). The third waterstop (7) is fixed to the side plate (6) by the locking bolts (9).

5. The bridge expansion joint with intelligent leakage monitoring and early warning as described in claim 1, characterized in that: The mounting housing (85) also houses a communication module (87) and a control module (88), both of which are electrically connected to the control module (88).

6. The bridge expansion joint with intelligent monitoring and early warning of leakage as described in claim 5, characterized in that: The first water guide strip (81) and the second water guide strip (82) are each connected to an extension (84) at one end. There is an angle between the extension (84) and the first water guide strip (81) and the second water guide strip (82). A positioning rod (86) is installed on the outer wall of the mounting shell (85). An opening is provided on the extension (84) for the positioning rod (86) to pass through. The end of the positioning rod (86) away from the mounting shell (85) passes through the opening to limit the mounting shell (85) on the extension (84).

7. The bridge expansion joint with intelligent monitoring and early warning of leakage as described in claim 1, characterized in that: A third receiving groove (10) is provided on the inner wall of each of the two shaped steels (1) on opposite sides, and the ends of the first water guide strip (81) and the second water guide strip (82) that are separated are installed in the third receiving groove (10).

8. The bridge expansion joint with intelligent monitoring and early warning of leakage as described in claim 7, characterized in that: The positioning component includes a wedge-shaped strip (12) slidably mounted on the profiled steel (1). An installation groove (11) is provided on the inner wall of the profiled steel (1). The wedge-shaped strip (12) is slidably connected to the inside of the installation groove (11). The wedge-shaped strip (12) extends along the length direction of the profiled steel (1). An adjusting bolt (14) is also rotatably mounted inside the installation groove (11). The wedge-shaped strip (12) is threadedly connected to the adjusting bolt (14). A pressure rod (13) is also slidably mounted on the side wall of the installation groove (11). Multiple pressure rods (13) are equidistantly arranged along the length direction of the wedge-shaped strip (12). One end of the pressure rod (13) extends into the inside of the installation groove (11) and abuts against the inclined surface of the wedge-shaped strip (12). The other end of the pressure rod (13) extends into the inside of the third receiving groove (10) and abuts against the outer wall of the first water guide strip (81) and the second water guide strip (82).

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