Bridge collapse warning device

Abstract

The utility model discloses a bridge collapse warning device, which relates to the technical field of disaster early warning and comprises a traction connecting device, an alarm device and a fixed guide device, one end of the traction connecting device is fixed at any position on a tunnel portal or a bridge, and the other end of the traction connecting device is connected with the alarm device; the alarm device gives an alarm when the traction connecting device is separated and disconnected; the fixed guide device is arranged at the bottom or the side edge of the bridge in the length direction of the bridge, and the traction connecting device penetrates through the fixed guide device. The bridge collapse warning device is installed on a side guardrail of a bridge through the steel wire rope and the connecting pipe, the switch can be triggered to be closed through the steel wire rope after the bridge collapses, so that a closed-loop circuit is formed among the switch, the warning lamp and the power supply, and the warning lamp emits warning light at the position, 100-150 m away from the bridge, in a tunnel. The warning device plays a role in warning vehicles going to enter the bridge, effectively eradicates or reduces major safety accidents caused by collapse of the bridge on the mountainous road, and guarantees driving safety on the bridge and the road in the mountainous area.

Description

Technical Field

[0001] The utility model relates to the technical field of disaster early warning, in particular to a bridge collapse warning device. Background Art

[0002] Mountainous areas have complex terrain and changeable geological conditions, such as broken rock and steep mountains, which pose a threat to the stability of bridges. The collapse of mountain road bridges is a complex and serious problem. Its occurrence is often related to multiple factors, including natural disasters, geological conditions, design and construction, etc. Extreme weather conditions such as heavy rain, floods, mudslides, etc. during natural disasters are one of the main reasons for the collapse of mountain road bridges. Heavy rain may cause secondary disasters such as landslides and mudslides, which directly impact the bridge structure and cause collapse. After the bridge collapses, the vehicles on the road are traveling at a high speed and it is difficult to judge the unknown dangers ahead. When approaching the collapsed area of ​​the bridge, it is too late to react to the dangerous situation. Major safety accidents are very likely to occur, threatening the lives and property of the people. For this reason, this application proposes a bridge collapse warning device to solve the above problems. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a bridge collapse warning device, which solves the technical problems raised in the above background.

[0005] (2) Technical solution

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a bridge collapse warning device, comprising:

[0007] A pulling connection device, one end of which is fixed to any position at the tunnel entrance or on the bridge, and the other end is connected to the alarm device;

[0008] an alarm device, which sounds an alarm when the pulling connection device is disconnected;

[0009] A fixed guide device is arranged on the bottom or side of the bridge along the length direction of the bridge, and the pulling connection device is arranged through the fixed guide device.

[0010] Furthermore, the pulling connection device is one of a steel wire rope and an electric cable.

[0011] Furthermore, the fixing guide device is a connecting pipe with a clamp, and the connecting pipe is fixed to the bridge through the clamp; the pulling connection device is arranged through the connecting pipe.

[0012] Furthermore, there are at least two connecting pipes, and a first pulley block fixed on the bridge is provided between the connecting pipes; the pulling connection device is provided close to the wheel surface of the first pulley block.

[0013] Furthermore, the pulling connection device is further provided with a secondary pulling connection device near one end of the alarm device, and the secondary pulling connection device is divided into two strands after being connected to the pulling connection device, and under the guidance of the second pulley group, it turns ninety degrees from the horizontal direction to the vertical direction; the two strands of secondary pulling connection devices are respectively connected to the two ends of the pull rod; the alarm device includes a control box, a frame, a spring limit plate, a switch device, a power supply and a warning light; the frame is arranged in front of the switch device, and two symmetrically arranged spring limit plates are arranged on both sides of the frame, the upper ends of the two symmetrically arranged spring limit plates are connected to the frame, and the lower ends are bent inward under the elastic force of the spring limit plates themselves; the pull rod is horizontally arranged above the operating handle of the switch device, and both ends are stuck in the lower part of the spring limit plate; the

[0014] Furthermore, there are two switch devices, which are arranged in parallel and connected to the power supply and the warning light respectively.

[0015] Furthermore, the control box, warning light and power supply are installed on the side wall of the tunnel.

[0016] Furthermore, the control box is installed at the tunnel entrance, and the warning light and power supply are installed in the tunnel at a distance of 100m-150m from the control box.

[0017] Furthermore, the steel wire rope can withstand a maximum tension of 1,500 kg, and the auxiliary steel wire rope can withstand a maximum tension of 50 kg.

[0018] Furthermore, the diameter of the inner wall cavity of the connecting tube is larger than the diameter of the wire rope; the vertical section of the auxiliary wire rope is divided into two paths and passes through the two notches at the bottom end of the control box to connect with the two ends of the pull rod.

[0019] (3) Beneficial effects

[0020] The beneficial effects of the present invention are:

[0021] This bridge collapse warning device is installed on the side guardrail of the bridge through a steel wire rope and a connecting pipe. After the bridge collapses, the steel wire rope can trigger the switch to close, forming a closed-loop circuit between the switch, warning light and power supply. The warning light emits a warning light 100 to 150 meters away from the bridge in the tunnel, which serves as a warning to vehicles about to enter the bridge, effectively eliminating or reducing major safety accidents caused by the collapse of bridges on mountain roads, and ensuring driving safety on mountain bridges and roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the three-dimensional structure of the utility model installed in a bridge and a tunnel;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection state of the steel wire rope and the connecting pipe of the utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure of the steel wire rope and the auxiliary steel wire rope of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the control box of the utility model.

[0027] In the figure: 1 wire rope, 2 connecting pipe, 3 clamp, 4 first pulley block, 5 pair of wire ropes, 6 second pulley block, 7 pull rod, 8 control box, 9 switch device, 10 frame, 11 spring limiter, 12 warning light, 13 power supply. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In order to solve the losses caused by bridge collapse accidents, the utility model discloses a bridge collapse warning device, comprising:

[0030] A pulling connection device, one end of which is fixed to any position at the tunnel entrance or on the bridge, and the other end is connected to the alarm device;

[0031] an alarm device, which sounds an alarm when the pulling connection device is disconnected;

[0032] A fixed guide device is arranged on the bottom or side of the bridge along the length direction of the bridge, and the pulling connection device is arranged through the fixed guide device.

[0033] By arranging a pulling connection device in the length direction of the bridge, the pulling connection device is dragged when the bridge collapses, and then under the guiding action of the fixed guide device, the pulling connection device triggers the alarm device, and then an alarm is issued, so that passing vehicles can avoid danger in advance and are prohibited from passing according to the alarm prompt, thereby effectively solving the bridge collapse caused by natural disasters and other situations, and the problem of passing drivers being unable to discover it in time in extreme weather, which may lead to serious traffic accidents. The structure is simple, the cost is lower, the operation is more convenient, and the effect is more significant.

[0034] In order to further explain the technical solution of the present utility model more clearly, further explanation is given below with reference to specific drawings.

[0035] like Figure 1-5As shown, the utility model provides a technical solution: a bridge collapse warning device, including a steel wire rope 1, which can withstand a maximum tension of 1500 kg, ensuring that the steel wire rope 1 can pull the auxiliary steel wire rope 5 to trigger the switch device 9 after the bridge collapses, and the front end of the steel wire rope 1 is installed at the front tunnel entrance in the direction of travel of the bridge through an expansion screw, and a plurality of connecting tubes 2 are sleeved on the steel wire rope 1, and the inner wall cavity diameter of the connecting tube 2 is larger than the diameter of the steel wire rope 1, ensuring that the steel wire rope 1 can slide in the connecting tube 2, and the connecting tube 2 is installed on the side guardrail of the bridge through a clamp 3, and a plurality of connecting tubes 2 are distributed at a fixed distance on the side guardrail of the bridge, and the steel wire rope 1 is supported by a plurality of first pulley groups 4 for easy sliding, thereby ensuring the sensitivity of the alarm device response when subjected to force, and the first sliding The wheel group 4 is installed on the side guardrail of the bridge. The setting of the first pulley group 4 not only supports the wire rope 1, but also ensures the smooth sliding of the wire rope 1 after being pulled after a collapse occurs somewhere in the bridge. The rear end of the wire rope 1 is connected to the auxiliary wire rope 5, and the auxiliary wire rope 5 can withstand a maximum tension of 50 kg. The tension range of the auxiliary wire rope 5 can ensure that the pull rod 7 is pulled down to trigger the switch device 9, and the auxiliary wire rope 5 can break when the tension is too large, avoiding the auxiliary wire rope 5 from being subjected to excessive tension to restrain the control box 8, and ensuring the normal opening state of the internal switch device 9. The auxiliary wire rope 5 is guided and supported by multiple second pulley groups 6 and rotates from horizontal to vertical state by ninety degrees, and the vertical side of the auxiliary wire rope 5 is divided into two paths. The top is connected to the pull rod 7, and the vertical section of the auxiliary wire rope 5 It is divided into two paths and passes through the two notches at the bottom of the control box 8 and is connected to the two ends of the pull rod 7. The vertical setting of the section where the auxiliary steel wire rope 5 is connected to the pull rod 7 can ensure that the pull rod 7 can be slid downward stably to push the handle of the switch device 9. The pull rod 7 is arranged in the control box 8. Two switch devices 9 are installed in the control box 8, and a frame 10 is installed in the control box 8 to cover the two switch devices 9, and two spring limiting pieces 11 are installed on the front side of the frame 10, and the top ends of the two spring limiting pieces 11 are connected to the frame 10, and the lower ends of the two spring limiting pieces 11 are retracted toward the frame 10. The retraction of the spring limiting piece 11 can limit the pull rod 7 to the upper side, corresponding to the handle of the switch device 9, and the pull rod 7 is clamped between the two spring limiting pieces 11 and the frame 10. And the pull rod 7 is pressed tightly on the handles of the two switch devices 9, and a closed-loop circuit is formed between the two switch devices 9 and the warning light 12 and the power supply 13. When the bridge collapses, the side guardrails at the collapsed part will sink, and the sinking of the side guardrails will drive the connecting pipe 2 to drop. The descent of the connecting pipe 2 applies a downward pulling force to the wire rope 1 in this area and moves downward. Under the support and guidance of the first pulley group 4, the wire rope 1 pulls the auxiliary wire rope 5, and the auxiliary wire rope 5 slides under the guidance of the second pulley group 6, pulling the pull rod 7 to move downward. The pull rod 7 keeps sliding vertically under the limit of the spring limit plate 11. During the sliding process, the pull rod 7 presses down the handle on the switch device 9 to close the switch device. At this time, a closed-loop circuit is formed between the switch device 9, the warning light 12 and the power supply 13.The warning light 12 emits a warning light within the tunnel at a distance of 100 to 150 meters from the bridge, alerting vehicles about to enter the bridge. The control box 8, warning light 12, and power supply 13 are installed on the tunnel sidewall. The control box 8 is installed at the tunnel entrance. The warning light 12 and power supply 13 are installed within the tunnel at a distance of 100 to 150 meters from the control box 8. Two warning lights 12 can also be installed: one installed within the tunnel at a distance of 100 to 150 meters from the control box 8, and one installed at the control box 8 at the tunnel entrance. The warning light 12 emits a warning light within the tunnel at a distance of 100 to 150 meters from the bridge, alerting vehicles about to enter the bridge and ensuring that vehicles have sufficient braking distance.

[0036] Exemplarily, the pulling connection device is a steel wire rope or an electric cable.

[0037] Exemplarily, the fixing guide device is a connecting pipe 2 with a clamp 3, and the connecting pipe 2 is fixed to the bridge through the clamp 3 and then through an expansion screw; the steel wire rope 1 is set through the connecting pipe 2.

[0038] For example, the pulling connection device is guided by the second pulley set 6 and then directly pulls the control handle on the switch device 9 through the pulling member, directly pulling down the control handle when the force is applied. The pulling member can withstand a maximum force of 20N and will break and detach from the control handle when the force is too large.

[0039] Exemplarily, there are at least two connecting pipes 2, and a first pulley block 4 fixed on the bridge is provided between the connecting pipes 2; the steel wire rope 1 is provided close to the wheel surface of the first pulley block 4.

[0040] Exemplarily, the steel wire rope 1 is further provided with an auxiliary steel wire rope 5 at one end near the alarm device, and the auxiliary steel wire rope 5 is divided into two strands after being connected to the steel wire rope 1, and is turned ninety degrees from the horizontal direction to the vertical direction under the guidance of the second pulley group 6; the two strands of auxiliary steel wire rope 5 are respectively connected to the two ends of the pull rod 7; the alarm device includes a control box 8, a frame 10, a spring limit plate 11, a switch device 9, a power supply and a warning light; the frame is arranged in front of the switch device 9, and two symmetrically arranged spring limit plates are arranged on both sides of the frame, the upper ends of the two symmetrically arranged spring limit plates are connected to the frame, and the lower ends are bent inward under the elastic force of the spring limit plates themselves; the pull rod is arranged horizontally above the operating handle of the switch device, and both ends are stuck in the lower part of the spring limit plates; the said.

[0041] Exemplarily, there are two switch devices, which are arranged in parallel and connected to the power supply 13 and the warning light 12 respectively.

[0042] Exemplarily, the alarm device is an audible and visual alarm.

[0043] The operating steps of the utility model are:

[0044] When the bridge collapses, the side guardrails at the collapsed area will sink, and the sinking of the side guardrails will drive the connecting pipe 2 to drop. The dropping of the connecting pipe 2 applies a downward pulling force to the wire rope 1 in the area and moves downward. The wire rope 1 pulls the auxiliary wire rope 5 under the support and guidance of the first pulley group 4. The auxiliary wire rope 5 slides under the guidance of the second pulley group 6, pulling the pull rod 7 to move downward. The pull rod 7 keeps sliding vertically under the limit of the spring limit plate 11. During the sliding process, the pull rod 7 presses down the handle on the switch 9 to close the switch. At this time, a closed-loop circuit is formed between the switch 9, the warning light 12 and the power supply 13. The warning light 12 emits a warning light at a distance of 100 to 150m from the bridge in the tunnel, which serves as a warning to vehicles that are about to enter the bridge and ensures that the vehicles have sufficient braking distance.

[0045] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0046] In the present invention, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0047] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge collapse warning device, characterized by: include, A pulling connection device, one end of which is fixed to any position at the tunnel entrance or on the bridge, and the other end is connected to the alarm device; an alarm device, which sounds an alarm when the pulling connection device is disconnected; A fixed guide device is arranged on the bottom or side of the bridge along the length direction of the bridge, and the pulling connection device is arranged through the fixed guide device.

2. The bridge collapse warning device according to claim 1, characterized in that: The pulling connection device is one of a steel wire rope and an electric cable.

3. The bridge collapse warning device according to claim 1, characterized in that: The fixing guide device is a connecting pipe with a clamp, and the connecting pipe is fixed on the bridge through the clamp; the pulling connection device is arranged through the connecting pipe.

4. The bridge collapse warning device according to claim 3, characterized in that: There are at least two connecting pipes, and a first pulley block fixed on the bridge is arranged between the connecting pipes; the pulling connection device is arranged close to the wheel surface of the first pulley block.

5. The bridge collapse warning device according to claim 4, characterized in that: The pulling connection device is also provided with a secondary pulling connection device near one end of the alarm device. After the secondary pulling connection device is connected to the pulling connection device, it is divided into two strands, and under the guidance of the second pulley group, it turns ninety degrees from the horizontal direction to the vertical direction; the two strands of secondary pulling connection devices are respectively connected to the two ends of the pull rod; the alarm device includes a control box, a frame, a spring limit plate, a switch device, a power supply and a warning light; the frame is arranged in front of the switch device, and two symmetrically arranged spring limit plates are arranged on both sides of the frame, the upper ends of the two symmetrically arranged spring limit plates are connected to the frame, and the lower ends are bent inward under the action of the elastic force of the spring limit plates themselves; the pull rod is horizontally arranged above the operating handle of the switch device, and the two ends are stuck in the lower part of the spring limit plate.

6. The bridge collapse warning device according to claim 5, characterized in that: There are two switch devices, which are arranged in parallel and connected to the power supply and the warning light respectively.

7. The bridge collapse warning device according to claim 5, characterized in that: The control box, warning light and power supply are installed on the side wall of the tunnel.

8. The bridge collapse warning device according to claim 5, characterized in that: The control box is installed at the tunnel entrance, and the warning light and power supply are installed in the tunnel at a distance of 100m-150m from the control box.

9. The bridge collapse warning device according to claim 5, characterized in that: The steel wire rope can withstand a maximum tension of 1,500 kg, and the auxiliary steel wire rope can withstand a maximum tension of 50 kg.

10. The bridge collapse warning device according to claim 9, characterized in that: The diameter of the inner wall cavity of the connecting pipe is larger than the diameter of the wire rope; the vertical section of the auxiliary wire rope is divided into two paths and passes through the two notches at the bottom end of the control box to connect with the two ends of the pull rod.

Images