Bridge expansion device
By adopting the overlapping structure of S-shaped steel and intermediate beams and the design of sliding support in the bridge expansion device, the impact of vehicle is buffered and load transmission is ensured, and the problems of noise pollution and safety hazards in the prior art are solved, and uninterrupted monitoring is achieved through the dual power supply guarantee of solar cell packs and storage batteries.
Patent Information
- Application Number
- CN202421820792.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing bridge expansion device is susceptible to impact under multiple effects such as vehicle load and temperature changes, resulting in noise pollution and safety hazards. At the same time, the monitoring device relies on a single power supply and cannot guarantee uninterrupted monitoring.
A bridge telescopic device is designed, using an overlapping structure of S-shaped steel and intermediate beam to buffer vehicle impact, increase cross-sectional load carrying capacity, and ensure load transfer through sliding pressure bearing and sliding compression bearing. At the same time, the dual power supply guarantee of solar cell packs and storage batteries is used to ensure the stable operation of the monitoring unit.
Effectively buffer vehicle impact, reduce noise pollution, improve the service life and driving comfort of bridge expansion devices, while ensuring the safety and stability of bridge expansion devices, and achieving uninterrupted monitoring of bridge expansion devices.
Smart Images
Figure CN222834724U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge structure protection, in particular to a bridge expansion device. Background Art
[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.
[0003] As an important component of the five small components of a bridge, the bridge expansion device meets the longitudinal, lateral, vertical displacement and rotation angle changes of the bridge structure under the multiple effects of vehicle loads, ambient temperature changes, wind and earthquakes. It is an important guarantee for the stability of the bridge structure and is the most critical and hardest working bridge structure protection device.
[0004] The existing bridge expansion device is a traditional modular expansion device. In an orthogonal situation, that is, when the vehicle's forward direction is perpendicular to the length direction of the bridge expansion device, the vehicle tire will impact the center beam steel when passing through the expansion joint. In the instantaneous state, the wheels on both sides are completely in a state of crossing the gap at the same time. At this time, the center of gravity of the wheel part of the vehicle body will fluctuate, which will have a greater impact on the steel at the edge of the gap. On the one hand, noise will be generated in this process, causing road noise pollution and affecting the quality of life and health of surrounding residents. On the other hand, it will affect the safety and stability of the bridge expansion device and cause safety hazards.
[0005] In order to promptly discover safety hazards in bridge expansion devices, inspection personnel install monitoring devices on the bridge expansion devices. However, existing monitoring devices mostly rely on a single power supply. Once the power supply operation is abnormal, the normal operation of the monitoring device cannot be guaranteed, and the operating status of the bridge expansion device cannot be continuously monitored. Utility Model Content
[0006] In view of the shortcomings of the prior art, the purpose of the embodiments of the utility model is to provide a bridge expansion device that can buffer the impact effect caused by vehicles and effectively transfer vehicle loads, reduce the rhythmic noise generated when wheels pass through gaps, and improve the service life of the bridge expansion device and the comfort of drivers and passengers.
[0007] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:
[0008] A bridge expansion device, comprising:
[0009] A supporting beam, wherein displacement boxes are respectively sleeved on both ends of the supporting beam along the length direction, and the displacement boxes are slidably connected to the supporting beam;
[0010] An intermediate beam, wherein the number of the intermediate beams is multiple, the multiple intermediate beams are arranged on the supporting beam at equal intervals, and the adjacent intermediate beams are provided with rubber belts; an S-shaped steel is arranged on the top of the intermediate beam, and a hook is arranged on the bottom of the intermediate beam, and the hook half surrounds the supporting beam; a sliding pressure bearing is arranged between the intermediate beam and the supporting beam, and a sliding clamping bearing is arranged between the hook and the supporting beam;
[0011] A monitoring unit, wherein the monitoring unit is arranged on the supporting beam and is electrically connected to a power module.
[0012] By adopting the above technical solution, the S-shaped steel and the middle beam are overlapped to buffer the impact effect caused by the vehicle, reduce the noise when the wheels pass through the expansion joint, and increase the cross-sectional bearing capacity of the bridge expansion device. The power module is used to provide dual power supply guarantee for the monitoring unit to ensure the stable operation of the monitoring unit.
[0013] In some embodiments, the monitoring unit includes multiple groups of displacement sensors, sound sensors, cameras, and monitoring terminals;
[0014] The displacement sensors are respectively arranged at the ends of the support beams and are located inside the displacement box; the sound sensor is arranged at the hook, and the camera is arranged at the support beam;
[0015] The displacement sensor, the sound sensor and the camera are respectively connected to the monitoring terminal for communication.
[0016] By adopting the above technical solution, displacement sensors are used to collect the displacement distance values of the two ends of the supporting beam and transmit them to the monitoring terminal; sound sensors are used to collect the noise values generated by the bridge expansion device when vehicles pass through the bridge and transmit them to the monitoring terminal; cameras are used to collect image information of the conditions of key components on the bridge expansion device and changes in expansion joints and transmit them to the monitoring terminal. Training personnel can use the monitoring terminal to achieve comprehensive monitoring of the bridge expansion device and evaluate the operating status of the bridge expansion device.
[0017] In some implementations, the monitoring terminal is a PLC controller, and the camera is a zoom camera.
[0018] In some embodiments, a first limiting recess is provided at the top of the sliding pressure bearing support, a first sliding groove is provided at the bottom of the sliding pressure bearing support, and a first limiting protrusion is provided at the bottom of the middle beam;
[0019] The sliding pressure bearing is slidably connected to the top of the support beam via a first sliding groove, and the first limiting protrusion is engaged with the first limiting recess.
[0020] In some embodiments, a second slide groove is provided at the top of the sliding and pressing support, a second limiting recess is provided at the bottom of the sliding and pressing support, and a second limiting protrusion is provided on the hook;
[0021] The sliding pressing support is slidably connected to the support beam via a second sliding groove, and the second limiting protrusion is clamped with the second limiting recess.
[0022] By adopting the above technical solution, it is ensured that the bridge expansion and contraction device does not affect the transfer of vehicle load on the bridge deck during the expansion and contraction process.
[0023] In some embodiments, the power module includes a storage battery, a solar cell group and a UPS module, the solar cell group is electrically connected to the UPS module, the UPS module is electrically connected to the monitoring unit, and the UPS module is electrically connected to the storage battery.
[0024] By adopting the above technical solution, the solar cell array is used to power the monitoring unit on a daily basis. When the battery power is low, the battery can also be charged by the solar cell array. When the solar cell array fails and the power is cut off, the UPS module automatically switches to powering the monitoring unit through the battery to ensure uninterrupted monitoring of the bridge expansion device.
[0025] In some embodiments, side beams are further included, and the side beams are arranged on the displacement box.
[0026] In some implementations, an alarm module is further included, and the alarm module is communicatively connected to the monitoring terminal.
[0027] In some embodiments, the alarm module includes an audible and visual alarm and a relay, and the relay includes a normally open switch and a coil;
[0028] The monitoring terminal is electrically connected to the coil, the sound and light alarm is electrically connected to the normally open switch, and the normally open switch is electrically connected to the power module.
[0029] By adopting the above technical solution, when the displacement distance value at both ends of the supporting beam exceeds the preset threshold, the monitoring terminal sends an electrical signal to the relay, and the sound and light alarm, relay and power supply module form a closed loop. The sound and light alarm emits a sound and light alarm to prompt the inspection personnel to conduct inspection.
[0030] In some embodiments, a storage unit is further included, and the storage unit is communicatively connected to the monitoring unit.
[0031] By adopting the above technical solution, the data collected by the monitoring unit is saved by the storage unit, thereby realizing data backup.
[0032] The technical solution provided by the utility model has at least the following technical effects or advantages:
[0033] 1. The technical solution provided by the utility model is to arrange S-shaped steel on the middle beam, and the plane profile of the S-shaped steel adopts an S-shaped curve, so that when the wheel passes through the surface of the telescopic device, it forms an oblique motion with the S-shaped steel, that is, the driving direction of the wheel forms a non-right angle with the S-shaped steel, which can buffer the impact effect caused by the vehicle, improve the service life of the telescopic device and the comfort of the driver and passengers, and greatly reduce the rhythmic noise generated when the wheel passes through the gap; at the same time, the S-shaped steel and the middle beam are overlapped to increase the section inertia moment of the main force-bearing components, further increase the section bending modulus, and improve the bearing capacity of the section.
[0034] 2. The technical solution provided by the utility model connects the middle beam, the sliding pressure bearing, the supporting beam, the sliding pressure bearing and the hook to each other through the setting of the sliding pressure bearing and the sliding pressure bearing, thereby ensuring that the vehicle load on the bridge deck can be effectively transmitted during the extension and retraction process of the bridge extension device.
[0035] 3. The technical solution provided by the utility model enables the inspection personnel to comprehensively monitor the operating status of the telescopic device in real time by combining sound, video and displacement; at the same time, the solar cell group and the battery are used to realize dual power supply guarantee to ensure the continuity of the monitoring unit.
[0036] 4. The technical solution provided by the utility model uses an alarm module to sound an alarm when encountering extreme working conditions that affect structural safety, so as to remind inspection personnel to inspect and repair the bridge expansion device. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0038] Figure 1 It is a front view schematic diagram provided by an embodiment of the utility model;
[0039] Figure 2 It is a partial structural schematic diagram provided by an embodiment of the utility model;
[0040] Figure 3 It is a structural schematic diagram provided by an embodiment of the utility model;
[0041] Figure 4 It is a schematic diagram of the architecture of the monitoring unit provided in the embodiment of the utility model;
[0042] Figure 5 It is a structural schematic diagram of a sliding pressure bearing provided by an embodiment of the utility model;
[0043] Figure 6 It is a top view schematic diagram provided by an embodiment of the utility model;
[0044] In the figure: 1. middle beam; 2. S-shaped steel; 3. displacement box; 4. supporting beam; 5. hook; 6. sound sensor; 7. camera; 8. displacement sensor; 9. monitoring terminal; 10. sliding pressure bearing; 11. sliding clamping bearing; 12. first limit depression; 13. first slide groove; 14. anchor bar.
[0045] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION
[0046] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.
[0047] As introduced in the background technology, the existing bridge expansion device is very susceptible to impact in an orthogonal situation, causing noise and safety hazards. In order to solve the above technical problems, the utility model proposes a bridge expansion device.
[0048] Combination Figure 1-Figure 6 The bridge expansion device includes a plurality of supporting beams 4, an intermediate beam 1 and a monitoring unit. The monitoring unit includes two sets of displacement sensors 8, a camera 7, a sound sensor 6 and a monitoring terminal 9. The two ends of the supporting beam 4 along the length direction are respectively provided with displacement boxes 3. The displacement boxes 3 are slidably connected to the supporting beam 4. The two displacement boxes 3 are welded with side beams distributed along the width direction of the supporting beam 4. There are several intermediate beams 1, and several intermediate beams 1 are placed on the supporting beam 4 at equal intervals. Rubber belts are installed between adjacent intermediate beams 1, and rubber belts are also installed between the outermost intermediate beam 1 and the corresponding side beam. An S-shaped steel 2 is placed on the upper surface of the intermediate beam 1, and a hook 5 is welded on the lower surface of the intermediate beam 1. The hook 5 is an L-shaped structure that semi-surrounds the supporting beam 4.
[0049] The S-shaped steel 2 has an S-shaped curve in appearance. When a vehicle passes through the bridge expansion device, the wheels form an oblique motion with the S-shaped steel 2 when passing through the surface of the bridge expansion device, which can reduce the impact force brought by the vehicle, improve the durability of the bridge expansion device and driving comfort, and reduce the rhythmic noise generated when the vehicle passes through the bridge expansion device. The S-shaped steel 2 and the middle beam 1 form a composite beam, which increases the thickness of the main load-bearing components and further enhances the load-bearing capacity.
[0050] The displacement sensor 8, the sound sensor 6 and the camera 7 communicate with the monitoring terminal 9 through a wireless network. The displacement sensor 8 is installed at the two ends of the supporting beam 4 along the length direction and is located inside the displacement box 3. The displacement sensor 8 is used to collect the displacement distance values of the two ends of the supporting beam 4 and transmit them to the monitoring terminal 9. The displacement distance values of the two ends of the supporting beam 4 can reflect the actual width of the bridge expansion joint. When the bridge expansion joint is too small, the middle beam 1 is blocked. When the bridge expansion joint is too large, the bridge expansion device will be damaged and affect the safety of vehicle traffic. Multiple sound sensors 6 are installed on the hook 5 to collect the noise value generated by the bridge expansion device when the vehicle passes through the bridge and transmit it to the monitoring terminal 9; multiple cameras 7 are installed on the supporting beam 4 to collect the image information of the key components on the expansion device and the changes of the expansion joint and transmit it to the monitoring terminal 9; the inspection personnel can be fully connected to the operation status of the bridge expansion device through the monitoring terminal 9.
[0051] Furthermore, in order to avoid data loss, a storage unit is also included, and the displacement sensor 8, the sound sensor 6 and the camera 7 are respectively connected to the storage unit for communication to achieve data backup.
[0052] In this embodiment, the storage unit is an SD card storage module.
[0053] As an implementation mode, the displacement box 3 is used to provide space for the displacement of the support beam 4, and each group of displacement boxes 3 corresponds to one support beam 4. The upper surface of the support beam 4 is slidably connected with a sliding pressure bearing 10, and the lower surface of the sliding pressure bearing 10 is provided with a first slide groove 13 that can surround the support beam 4. The sliding pressure bearing 10 is slidably connected with the support beam 4 through the first slide groove 13; the top of the sliding pressure bearing 10 has a first limiting recess 12, and the first limiting recess 12 is a cylindrical recess; the lower surface of the middle beam 1 has a corresponding first limiting protrusion of cylindrical design, and the first limiting recess 12 is engaged with the corresponding first limiting protrusion, thereby realizing the fixed connection between the sliding pressure bearing 10 and the lower surface of the middle beam 1.
[0054] A sliding and clamping support 11 is installed between the hook 5 and the supporting beam 4. A second sliding groove surrounding the supporting beam 4 is opened at the top of the sliding and clamping support 11, and a second cylindrical limiting recess is opened at the bottom of the sliding and clamping support 11. A second cylindrical limiting protrusion is installed on the top of the hook 5. The sliding and clamping support 11 is sleeved on the second limiting protrusion through the second limiting recess at the bottom and is fixed to the hook 5. The sliding and clamping support 11 is slidably connected to the bottom surface of the supporting beam 10 through the second sliding groove.
[0055] By setting the sliding clamping support 11 and the sliding pressure-bearing support 10, the middle beam 1, the sliding pressure-bearing support 10, the supporting beam 4, the sliding clamping support 11 and the hook 5 are interconnected, ensuring that the bridge expansion and contraction device does not affect the transmission of the bridge deck vehicle load during the expansion and contraction process.
[0056] Combination Figure 6 When in use, a plurality of anchor bars 14 are installed on the side beams, and the bridge expansion device is connected to the bridge deck through the anchor bars 14.
[0057] In order to ensure that the system can perform continuous monitoring without being affected by fluctuations or interruptions in external power supply, as an implementation method, it also includes a power module, which is electrically connected to the monitoring unit.
[0058] Specifically, the power module includes a battery, a solar cell group and a UPS module. The solar cell group is electrically connected to the UPS module. The UPS module is electrically connected to the displacement sensor 8, the sound sensor 6 and the camera 7 respectively. The UPS module is electrically connected to the battery.
[0059] Under normal circumstances, the solar cell group is used to power the various components in the monitoring unit through the UPS module; when the battery is low on power, the solar cell group is used to charge the battery through the UPS module, and the charging stops automatically when it is fully charged. When the solar cell group fails and the power goes out, the UPS module automatically switches to powering the monitoring unit through the battery to ensure uninterrupted monitoring of the bridge expansion device.
[0060] In this embodiment, the monitoring terminal 9 is a PLC controller, and the camera 7 is a zoom camera, which can achieve image acquisition in a wider range.
[0061] In order to promptly remind the inspection personnel when an abnormality occurs, as an implementation method, an alarm module is also included, and the alarm module is electrically connected to the PLC controller.
[0062] Specifically, the alarm module includes an audible and visual alarm, a relay and a lithium battery. The audible and visual alarm is electrically connected to a normally open switch of the relay. The normally open switch of the relay is electrically connected to a power module. The PLC controller is electrically connected to a coil of the relay.
[0063] When the displacement distance value at both ends of the supporting beam 4 exceeds the preset threshold, the PLC controller sends an electrical signal to the coil of the relay, the normally open switch of the relay closes, the sound and light alarm, the normally open switch of the relay and the power module form a closed loop, and the sound and light alarm emits a sound and light alarm to prompt the inspection personnel to conduct inspection.
[0064] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.
Claims
1. A bridge expansion device, characterized in that: include: A supporting beam, wherein displacement boxes are respectively sleeved on both ends of the supporting beam along the length direction, and the displacement boxes are slidably connected to the supporting beam; An intermediate beam, wherein the number of the intermediate beams is multiple, the multiple intermediate beams are arranged on the supporting beam at equal intervals, and the adjacent intermediate beams are provided with rubber belts; an S-shaped steel is arranged on the top of the intermediate beam, and a hook is arranged on the bottom of the intermediate beam, and the hook half surrounds the supporting beam; a sliding pressure bearing is arranged between the intermediate beam and the supporting beam, and a sliding clamping bearing is arranged between the hook and the supporting beam; A monitoring unit, wherein the monitoring unit is arranged on the supporting beam and is electrically connected to a power supply module.
2. The bridge expansion device according to claim 1, characterized in that: The monitoring unit includes multiple groups of displacement sensors, sound sensors, cameras and monitoring terminals; The displacement sensors are respectively arranged at the ends of the support beams and are located inside the displacement box; the sound sensor is arranged at the hook, and the camera is arranged at the support beam; The displacement sensor, the sound sensor and the camera are respectively connected to the monitoring terminal for communication.
3. The bridge expansion device according to claim 2, characterized in that: The monitoring terminal is a PLC controller, and the camera is a zoom camera.
4. The bridge expansion device according to claim 1, characterized in that: A first limiting recess is provided on the top of the sliding pressure bearing support, a first sliding groove is provided on the bottom of the sliding pressure bearing support, and a first limiting protrusion is provided on the bottom of the middle beam; The sliding pressure bearing is slidably connected to the top of the support beam via a first sliding groove, and the first limiting protrusion is engaged with the first limiting recess.
5. The bridge expansion device according to claim 1, characterized in that: A second sliding groove is provided on the top of the sliding pressing support, a second limiting recess is provided on the bottom of the sliding pressing support, and a second limiting protrusion is provided on the hook; The sliding pressing support is slidably connected to the support beam via a second sliding groove, and the second limiting protrusion is clamped with the second limiting recess.
6. The bridge expansion device according to claim 1, characterized in that: The power module comprises a storage battery, a solar cell group and a UPS module. The solar cell group is electrically connected to the UPS module, the UPS module is electrically connected to the monitoring unit, and the UPS module is electrically connected to the storage battery.
7. The bridge expansion device according to claim 1, characterized in that: It also includes side beams, which are arranged on the displacement box.
8. The bridge expansion device according to claim 2, characterized in that: It also includes an alarm module, which is communicatively connected with the monitoring terminal.
9. The bridge expansion device according to claim 8, characterized in that: The alarm module includes an audible and visual alarm and a relay, and the relay includes a normally open switch and a coil; The monitoring terminal is electrically connected to the coil, the sound and light alarm is electrically connected to the normally open switch, and the normally open switch is electrically connected to the power module.
10. The bridge expansion device according to claim 1, characterized in that: It also includes a storage unit, which is communicatively connected with the monitoring unit.