Bridge support abnormal displacement early warning device

Abstract

The utility model discloses a bridge support abnormal displacement early warning device, including the upper board, the bottom of upper board is installed with fixed block, the bottom fixed connection of fixed block has the mounting bracket, the bottom of mounting bracket is installed with trigger ring, the outer wall of trigger ring is provided with response shell, the inner wall bottom fixed connection of response shell has the reed. The utility model relates to bridge engineering safety monitoring technical field's cooperation through trigger ring, response shell and adjusting device, when installing early warning device, use adjusting device and adjust the position between trigger ring and response shell, make the trigger value of early warning device adjust, solved the early warning device when installing and need staff's accurate installation between bridge and support, but because early warning device is the precision alarm device, when the detection data of adjusting early warning device is inconvenient.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering safety monitoring technology, specifically to an early warning device for abnormal displacement of bridge bearings. Background Technology

[0002] Bridge bearings are important components connecting the superstructure and substructure of a bridge. Their main function is to transfer the load of the superstructure to the substructure and to accommodate the deformation of the superstructure. During bridge operation, abnormal displacement of bridge bearings may occur due to factors such as vehicle load, temperature changes, and foundation settlement. If these factors are not detected and addressed in time, they may cause damage to the bridge structure or even lead to safety accidents.

[0003] In existing technology, the device is installed as a whole between the bridge and the construction site. When the bridge shifts, an early warning device is triggered to alert the staff to the change.

[0004] However, in actual use, the early warning device requires precise installation between the bridge and the support by the staff. Since the early warning device is a precision alarm device, it is inconvenient to adjust the detection data of the early warning device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a bridge bearing abnormal displacement early warning device, which solves the problem that in actual use, the early warning device needs to be precisely installed between the bridge and the bearing by the staff, but because the early warning device is a precision alarm device, it is inconvenient to adjust the detection data of the early warning device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an early warning device for abnormal displacement of bridge bearings, comprising an upper plate, a fixing block installed at the bottom of the upper plate, a mounting frame fixedly connected to the bottom of the fixing block, a trigger ring installed at the bottom of the mounting frame, a sensing shell provided on the outer wall of the trigger ring, a spring plate fixedly connected to the bottom of the inner wall of the sensing shell, an auxiliary block fixedly connected to the bottom of the sensing shell, a lower plate fixedly connected to the outer wall of the auxiliary block, and an adjustment device installed on the top of the trigger ring.

[0007] Preferably, the adjusting device includes a connecting rod, the bottom of which is fixedly connected to the top of the trigger ring, a mounting post is sleeved on the upper part of the outer wall of the connecting rod, the mounting post and the connecting rod are fixedly connected by bolts, a slider is fixedly connected to the top of the mounting post, and the outer wall of the slider is slidably engaged with the inner wall of the mounting frame.

[0008] Preferably, the sensing shell is electrically connected to a processor, the processor is fixedly connected to the inner wall of the auxiliary block, the processor is electrically connected to an alarm, and the outer wall of the alarm is fixedly connected to the outer wall of the auxiliary block.

[0009] Preferably, a rod is inserted into one side of the top of the fixing block, a block is inserted into the outer wall of the rod, the outer wall of the block is movably connected to the inner wall of the fixing block, a pull rod is fixedly connected to one end of the block extending into the interior of the fixing block, the outer wall of the pull rod is movably connected to the inner wall of the fixing block, and a spring is sleeved on the outer wall of the pull rod, the spring pressing against the fixing block and the rod.

[0010] Preferably, a limiting rod is inserted into the other side of the top of the fixing block, and the top of the limiting rod is fixedly connected to the bottom of the upper plate. Beneficial effects

[0011] This utility model provides a bridge bearing abnormal displacement early warning device. It has the following advantages: Through the cooperation of a trigger ring, a sensing shell, and an adjustment device, the early warning device allows for adjustment of the position between the trigger ring and the sensing shell during installation, thereby adjusting the trigger value of the early warning device. This solves the problem that the early warning device requires precise installation between the bridge and the bearing, but is inconvenient to adjust its detection data due to its precision nature.

[0012] By using the combination of insert rods, fixing blocks, and tie rods, the upper plate is fixed to the bottom of the bridge with bolts. Then, the fixing block is inserted into the insert rod at the bottom of the upper plate. Under the compression of the spring, the insert block is inserted into the outer wall of the insert rod, thus fixing the fixing block to the bottom of the upper plate. This solves the problem of inconvenience when installing the warning device, which can easily lead to inaccurate measurement data of the warning device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0015] Figure 3 for Figure 1 A schematic diagram of the structure of the processor, auxiliary block, and trigger ring;

[0016] Figure 4 for Figure 1 A structural diagram of the fixing block, insert rod, and mounting post;

[0017] Figure 5 This is the circuit diagram of this utility model.

[0018] In the diagram: 1. Upper plate; 2. Lower plate; 3. Insert rod; 4. Limiting rod; 5. Fixing block; 6. Auxiliary block; 7. Processor; 8. Trigger ring; 9. Sensor housing; 10. Alarm; 11. Spring; 12. Mounting post; 13. Insert block; 14. Pull rod; 15. Connecting rod; 16. Spring; 17. Slider; 18. Mounting bracket. Detailed Implementation

[0019] 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.

[0020] In practical use, the early warning device requires precise installation between the bridge and the support by the staff. However, since the early warning device is a precision alarm device, it is inconvenient to adjust the detection data of the early warning device.

[0021] In view of this, the present invention provides a bridge bearing abnormal displacement early warning device, which solves the problem that in actual use, the early warning device needs to be precisely installed between the bridge and the bearing by the staff, but because the early warning device is a precision alarm device, it is inconvenient to adjust the detection data of the early warning device.

[0022] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0023] Example 1: By Figure 1-5 It is known that a bridge bearing abnormal displacement early warning device includes an upper plate 1, a fixing block 5 installed at the bottom of the upper plate 1, an installation frame 18 fixedly connected to the bottom of the fixing block 5, a trigger ring 8 installed at the bottom of the installation frame 18, a sensing shell 9 provided on the outer wall of the trigger ring 8, a spring 11 fixedly connected to the bottom of the inner wall of the sensing shell 9, an auxiliary block 6 fixedly connected to the bottom of the sensing shell 9, a lower plate 2 fixedly connected to the outer wall of the auxiliary block 6, and an adjustment device installed on the top of the trigger ring 8.

[0024] In the specific implementation process, it is worth noting that the trigger ring 8 is made of copper alloy material with excellent conductivity. It has a ring structure and is installed at the bottom of the mounting bracket 18. Its outer wall is finely polished to ensure the smoothness of the surface so that it can sensitively contact the components on the inner wall of the sensing shell 9 when displacement occurs. The sensing shell 9 is a hollow cylindrical structure with an insulating material on the outside and copper wires wrapped around its inside. There are no wires on the bottom of its inner wall, but a spring 11 is fixedly connected to it. The spring 11 is made of phosphor bronze sheet with excellent elasticity, which has good conductivity and recovery. When it is not triggered, it is in a free state and maintains a certain distance from the outer wall of the trigger ring 8. When the bridge support has abnormal displacement, the upper plate 1 and the lower plate 2 will have relative displacement, which will drive the fixing block 5, the mounting bracket 18 and the trigger ring 8 to move together. When the displacement exceeds the set normal range, the outer wall of the trigger ring 8 will contact the spring 11 on the inner wall of the sensing shell 9, so that the circuit is connected and a warning signal is triggered. It can also be powered by an external power supply or a battery.

[0025] Furthermore, the adjustment device includes a connecting rod 15, the bottom of which is fixedly connected to the top of the trigger ring 8, a mounting post 12 is sleeved on the upper part of the outer wall of the connecting rod 15, the mounting post 12 and the connecting rod 15 are fixedly connected by bolts, and a slider 17 is fixedly connected to the top of the mounting post 12, the outer wall of the slider 17 is slidably engaged with the inner wall of the mounting frame 18.

[0026] In the specific implementation process, it is worth noting that a mounting post 12 is sleeved on the upper part of the outer wall of the connecting rod 15. The mounting post 12 is made of lightweight, high-strength aluminum alloy, which reduces the overall weight of the adjustment device while meeting the structural strength requirements. The mounting post 12 is a hollow tubular structure, and its inner diameter matches the outer diameter of the connecting rod 15. The two are fitted with a clearance fit to facilitate relative sliding for height adjustment. The mounting post 12 and the connecting rod 15 are fixedly connected by bolts. Three screw holes are evenly distributed radially along the mounting post 12. The corresponding outer wall of the connecting rod 15 has multiple sets of equally spaced positioning holes. The bolts pass through the screw holes and engage with the positioning holes to securely lock the two in the required position. Different positioning holes can be selected according to actual needs to precisely adjust the height. The top of 12 is fixedly connected to the slider 17 by an integral molding process. The slider 17 is made of wear-resistant cast iron and is coated with solid lubricant, which can effectively reduce the coefficient of friction during sliding, reduce wear and ensure smooth sliding. The outer wall of the slider 17 is designed as a T-shaped structure that matches the inner wall of the mounting bracket 18. The inner wall of the mounting bracket 18 is provided with a corresponding T-shaped groove. The outer wall of the slider 17 is slidably engaged in the groove of the inner wall of the mounting bracket 18. This structure can not only achieve smooth sliding in the horizontal direction, but also limit the displacement of the slider 17 in the vertical direction, ensuring the stability of the adjustment process. The inner wall of the groove is engraved with millimeter-level scale lines, which, together with the indicator lines on the edge of the slider 17, can accurately display the distance of horizontal adjustment, making it easy for the operator to accurately control the horizontal position of the trigger ring 8.

[0027] Furthermore, the sensing shell 9 is electrically connected to the processor 7, the processor 7 is fixedly connected to the inner wall of the auxiliary block 6, the processor 7 is electrically connected to the alarm 10, and the outer wall of the alarm 10 is fixedly connected to the outer wall of the auxiliary block 6.

[0028] In the specific implementation process, it is worth noting that the induction shell 9 is electrically connected to the processor 7. The two are connected through high-temperature resistant and anti-aging shielded wires. The outer layer of the wires is wrapped with a metal braided mesh shielding layer, which can effectively isolate external electromagnetic signal interference and ensure the stability of electrical signal transmission. The connection interface uses a waterproof aviation plug, and a rubber sealing ring is provided between the plug and the socket, with a protection level of IP67, which can prevent rainwater, dust, etc. from affecting the connection performance. The processor 7 uses an industrial-grade high-performance microprocessor, which has the characteristics of fast computing speed, vibration resistance, and high and low temperature resistance (-40℃ to 85℃), and can adapt to the complex and variable working environment of bridges. Its shell is made of die-cast aluminum alloy. The surface is anodized, providing excellent heat dissipation and corrosion resistance. The processor 7 has a preset displacement threshold parameter. Upon receiving a signal, it can quickly analyze and process the signal to determine whether the bridge support displacement exceeds the normal range. Simultaneously, the processor 7 also has a data storage function, which can record information such as the time and displacement amount of each abnormal displacement for easy tracing and analysis later. The models of the above electronic components are not limited, as long as they meet the actual usage requirements. When the bridge is displaced, the trigger ring 8 will touch the sensing shell 9 and the spring 11, which will transmit the signal to the processor 7. After processing by the processor, the signal will be transmitted to the alarm 10 for alert.

[0029] Example 2: From Figure 1-5 It can be seen that a rod 3 is inserted into one side of the top of the fixing block 5, a block 13 is inserted into the outer wall of the rod 3, the outer wall of the block 13 is movably connected to the inner wall of the fixing block 5, a pull rod 14 is fixedly connected to one end of the block 13 extending into the interior of the fixing block 5, the outer wall of the pull rod 14 is movably connected to the inner wall of the fixing block 5, and a spring 16 is sleeved on the outer wall of the pull rod 14, the spring 16 is pressed against the fixing block 5 and the rod 3;

[0030] In the specific implementation process, it is worth noting that the outer wall of the insertion rod 3 is fitted with an insertion block 13. The insertion block 13 is made of wear-resistant cast iron, and its surface hardness is significantly improved after quenching treatment, which can reduce wear during long-term insertion and removal. The insertion block 13 has a cuboid structure with a through hole in the middle that matches the outer wall of the insertion rod 3. The inner wall of the through hole is polished smooth to reduce the frictional resistance between it and the insertion rod 3. The outer wall of the insertion block 13 is movably connected to the inner wall of the fixing block 5. The corresponding position inside the fixing block 5 is provided with a rectangular sliding groove that matches the insertion block 13. The inner wall of the sliding groove is coated with grease to ensure that the insertion block 13 can slide smoothly along the sliding groove. One end of the spring 16 abuts against the limiting boss on the inner wall of the fixing block 5, and the other end is close to the insertion block 13. When the end faces of the insertion rod 3 abut against each other, the spring 16 is in a slightly compressed state under natural conditions. The insertion block 13 applies a continuous clamping force to the insertion rod 3 to prevent the insertion rod 3 from loosening during device vibration. When the insertion rod 3 needs to be pulled out, the operator pulls the insertion rod 3 outward. The insertion block 13 moves along the slide groove to the outside of the fixing block 5 under the action of the insertion rod 3, while compressing the spring 16. After the insertion rod 3 is released, the restoring force of the spring 16 pushes the insertion block 13 back to its original position, thereby driving the insertion rod 3 to be re-inserted into place, achieving quick locking. The setting of this structure can enhance the auxiliary fixing effect of the connection between the fixing block 5 and the upper plate 1, further preventing the displacement of the fixing block 5 on the basis of bolt connection, and improving the overall structural stability of the device.

[0031] Furthermore, a limiting rod 4 is inserted into the other side of the top of the fixing block 5, and the top of the limiting rod 4 is fixedly connected to the bottom of the upper plate 1;

[0032] In the specific implementation process, it is worth noting that the limiting rod 4 is cylindrical. When installing the fixing block 5, the limiting rod 4 is inserted into the fixing block 5. This makes it convenient to install the warning device and avoids the warning device affecting the detection data after installation.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge bearing abnormal displacement early warning device, comprising an upper plate (1), characterized in that: A fixing block (5) is installed at the bottom of the upper plate (1). A mounting bracket (18) is fixedly connected to the bottom of the fixing block (5). A trigger ring (8) is installed at the bottom of the mounting bracket (18). A sensing shell (9) is provided on the outer wall of the trigger ring (8). A spring (11) is fixedly connected to the bottom of the inner wall of the sensing shell (9). An auxiliary block (6) is fixedly connected to the bottom of the sensing shell (9). A lower plate (2) is fixedly connected to the outer wall of the auxiliary block (6). An adjustment device is installed on the top of the trigger ring (8).

2. The bridge bearing abnormal displacement early warning device according to claim 1, characterized in that: The adjusting device includes a connecting rod (15), the bottom of which is fixedly connected to the top of the trigger ring (8). A mounting post (12) is sleeved on the upper part of the outer wall of the connecting rod (15). The mounting post (12) and the connecting rod (15) are fixedly connected by bolts. A slider (17) is fixedly connected to the top of the mounting post (12). The outer wall of the slider (17) is slidably engaged with the inner wall of the mounting frame (18).

3. The bridge bearing abnormal displacement early warning device according to claim 1, characterized in that: The sensing shell (9) is electrically connected to a processor (7), which is fixedly connected to the inner wall of the auxiliary block (6). The processor (7) is electrically connected to an alarm (10), which is fixedly connected to the outer wall of the auxiliary block (6).

4. The bridge bearing abnormal displacement early warning device according to claim 1, characterized in that: A rod (3) is inserted into one side of the top of the fixing block (5). A block (13) is inserted into the outer wall of the rod (3). The outer wall of the block (13) is movably connected to the inner wall of the fixing block (5). A pull rod (14) is fixedly connected to one end of the block (13) that extends into the interior of the fixing block (5). The outer wall of the pull rod (14) is movably connected to the inner wall of the fixing block (5). A spring (16) is sleeved on the outer wall of the pull rod (14). The spring (16) is pressed against the fixing block (5) and the rod (3).

5. The bridge bearing abnormal displacement early warning device according to claim 1, characterized in that: A limiting rod (4) is inserted into the other side of the top of the fixing block (5), and the top of the limiting rod (4) is fixedly connected to the bottom of the upper plate (1).

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