Road and bridge collapse automatic alarm system

Abstract

The utility model provides a road and bridge collapse automatic alarm system, comprising a first mounting plate arranged on a first pavement slab body; a mounting column is arranged on the first mounting plate; the second mounting plate is arranged on the second pavement slab body; a rotating column and an alarm body are adjacently arranged on the second mounting plate; the alarm rod is rotatably arranged on the rotating column; one end of the alarm rod sleeves the mounting column, and the other end of the alarm rod is arranged below the alarm body; a limiting block and an adjusting block are arranged on the mounting column, an action space is formed between the limiting block and the adjusting block, and one end of the alarm rod sleeves the action space; the alarm device is arranged on a fence of the road and bridge and is connected with the alarm body; the road and bridge collapse automatic alarm system provided by the utility model is in a detection state before the road and bridge collapse, and at the moment, excessive energy consumption is not needed; and when collapse occurs, the collapse condition can be detected in time, and an alarm is given, so that accidents are avoided.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge monitoring equipment technology, and in particular to an automatic alarm system for road and bridge collapse. Background Technology

[0002] Roads and bridges are elevated roads that use bridge structures instead of ground structures. They are a common type of transportation facility, especially in areas with limited space or obstructions from other buildings or farmland, to ensure smooth traffic flow and speed after completion without affecting normal use of the area.

[0003] After a road or bridge is built, as it is used over time and the load on it by vehicles increases, especially on sections of the road or bridge with heavy traffic or in areas with loose geology, road surface collapses often occur. If the collapse location is not detected and warned in time, major traffic accidents may occur due to the high speed of vehicles on the road or bridge, and may even endanger the lives of many people.

[0004] While existing technologies include radar or video detection methods, the generally long length of roads and bridges necessitates the deployment of numerous radar or video monitoring devices, thus increasing monitoring costs. Furthermore, radar or video monitoring equipment requires sufficient power, and since these devices operate outdoors, prolonged use leads to increased energy consumption. In addition, inadequate maintenance can cause equipment damage and prevent normal monitoring, resulting in the inability to detect and report road or bridge collapses in a timely manner, ultimately causing accidents. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic alarm system for road and bridge collapse, which can solve the above-mentioned technical problems.

[0006] This utility model provides an automatic alarm system for road and bridge collapse, including:

[0007] The first mounting plate is set on the first road panel body; and the first mounting plate is provided with mounting posts.

[0008] The second mounting plate is installed on the second circuit panel; and a rotating column and an alarm body are installed adjacent to each other on the second mounting plate.

[0009] The alarm rod is rotatably mounted on a rotating column; one end of the alarm rod is sleeved on the mounting column, and the other end is positioned below the alarm body.

[0010] The mounting post is equipped with a limit block and an adjustment block, and an action space is formed between the limit block and the adjustment block. One end of the alarm rod is fitted onto the action space.

[0011] The alarm device is installed on the railing of the road and bridge and connected to the alarm body.

[0012] As a further technical solution, a mounting groove is provided on the rotating column, and the alarm rod is installed in the mounting groove.

[0013] As a further technical solution, pin holes are provided on both sides of the mounting groove, and the alarm rod is placed in the mounting groove after the pin passes through the pin holes.

[0014] As a further technical solution, the adjusting block can be repositioned on the mounting column to adjust the distance between it and the limiting block.

[0015] As a further technical solution, the adjustment block includes:

[0016] The adjustment frame is fitted onto the mounting post;

[0017] The first and second adjustment buttons each have one end that passes through both sides of the adjustment frame and is placed inside the adjustment frame;

[0018] The first positioning block and the second positioning block are placed inside the mounting column and are respectively connected to the first adjustment button and the second adjustment button;

[0019] An elastic element is disposed between the first positioning block and the second positioning block.

[0020] As a further technical solution, the mounting column is provided with several adjustment holes, and the first positioning block and the second positioning block are provided with positioning protrusions; in the installation state, the positioning protrusions are placed in the adjustment holes.

[0021] As a further technical solution, a first slide rail and a second slide rail are provided on opposite sides of the mounting column, and a first adjustment button and a second adjustment button are respectively inserted into the first slide rail and the second slide rail.

[0022] As a further technical solution, the alarm rod includes:

[0023] The rod is rotatably mounted on the rotating column;

[0024] A movable frame is set at one end of the pole and is fitted onto the mounting post.

[0025] The contact plate is located at the other end of the pole and below the alarm body.

[0026] As a further technical solution, the alarm device includes:

[0027] The housing is mounted on the second mounting plate;

[0028] The control module is housed inside the casing and connected to the alarm device.

[0029] The switch body is housed inside the casing and connected to the control module.

[0030] As a further technical solution, a protective shell is installed on the first and second panel bodies.

[0031] The technical solution of this utility model uses a first mounting plate and a second mounting plate to fix the first road panel body and the second road panel body, thereby fixing the mounting column, the rotating column and the alarm body. The alarm rod set on the rotating column can cause the first mounting plate and the mounting column to move downwards simultaneously when the first panel body collapses. When the mounting column moves, it causes the limiting block to move downwards and contact one end of the alarm rod, causing that end of the alarm rod to move. Under the lever principle, the other end of the alarm rod contacts the alarm body, triggering the alarm body. The alarm body generates a signal, which is then sent to the alarm device to alert vehicles on the road and bridge, preventing accidents. Compared with the prior art, the technical solution of this utility model is in a detection state before the road and bridge collapses, requiring less energy consumption. When a collapse occurs, it can promptly detect the collapse and issue an alarm, preventing accidents. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a perspective view of an automatic alarm system for road and bridge collapse according to this utility model.

[0034] Figure 2 This is a perspective view of the automatic alarm system for road and bridge collapse according to this utility model from another angle;

[0035] Figure 3 This is a perspective view of the mounting column, limiting block, adjusting block, rotating column, alarm body, and alarm rod in this utility model from one angle.

[0036] Figure 4 This is a perspective view of the mounting column, limiting block, adjusting block, rotating column, alarm body, and alarm rod from another angle in this utility model.

[0037] Figure 5 This is an enlarged structural diagram of one angle of the adjustment block in this utility model;

[0038] Figure 6 for Figure 5 A sectional view of section BB;

[0039] Figure 7This is an enlarged schematic diagram of the adjustment block at another angle in this utility model;

[0040] Figure 8 This is an enlarged perspective view of the adjustment block structure in this utility model;

[0041] Figure 9 for Figure 2 Enlarged structural diagram of section A;

[0042] Figure 10 This is a connection block diagram of the control module, switch body, alarm device and transmitting module in this utility model.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100-First channel panel body; 200-Second channel panel body; 300-Alarm device; 400-Protective shell; 101-Mounting post; 102-Limiting block; 103-Adjusting block; 131-Adjusting frame; 132-First adjusting knob; 133-Second adjusting knob; 134-First positioning block; 135-Second positioning block; 136-Elastic element; 137-First limiting protrusion; 138-Second limiting protrusion; 104-First slide rail; 105-Second slide rail; 106-Adjusting hole; 201-Rotating post; 202-Alarm body; 222-Control module; 223-Switch body; 203-Mounting groove; 204-Pin hole; 205-Sending module; 301-First mounting plate; 302-Second mounting plate; 401-Alarm rod; 441-Rod body; 442-Moving frame; 443-Contact plate. Detailed Implementation

[0045] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] like Figure 1-10 As shown, the present invention proposes an automatic alarm system for road and bridge collapse, comprising:

[0049] A first mounting plate 301 is disposed on a first road panel body 100; and a mounting post 101 is disposed on the first mounting plate 301; a second mounting plate 302 is disposed on a second road panel body 200; and a rotating post 201 and an alarm body 202 are disposed adjacent to each other on the second mounting plate 302; in this utility model, the first road panel body 100 and the second road panel body 200 are disposed adjacent to each other, and cement concrete or the like is laid on the first road panel body 100 and the second road panel body 200 to form a road and bridge surface; specifically, the first mounting plate 301 can be pre-embedded. The first and second mounting plates 301 and 302 are respectively fixed to the first road panel body 100 and the second road panel body 200. Alternatively, they can be fixed to the first road panel body 100 and the second road panel body 200 respectively by bolts through holes. The specific method depends on the actual situation, and this utility model does not further limit it. However, it should be noted that the first mounting plate 301 and the second mounting plate 302 are set on the bottom surface of the first road panel body 100 and the second road panel body 200. This does not affect the normal use of the road and bridge.

[0050] The alarm rod 401 is rotatably mounted on the rotating column 201; one end of the alarm rod 401 is sleeved on the mounting column 101, and the other end is placed below the alarm body 202; the mounting column 101 is provided with a limit block 102 and an adjustment block 103, and an action space is formed between the limit block 102 and the adjustment block 103, and one end of the alarm rod 401 is sleeved on the action space; the alarm device 300 is mounted on the fence of the road and bridge and connected to the alarm body 202.

[0051] When a collapse occurs, an alarm signal is generated by the contact between the alarm rod 401 and the alarm body 202. The generated alarm signal controls the alarm device 300 to sound an alarm, alerting vehicles traveling on the road or bridge. It should be noted that in this invention, the alarm device 300 can be a sound alarm, a light alarm, or a combination of light and sound alarms, depending on the specific requirements. The alarm device 300 can also be connected to the power grid to provide the electrical energy required for the alarm, or it can be connected to a solar power generation device. The solar power generation device utilizes existing technology and will not be further described in this invention.

[0052] In addition, depending on the situation, the distance between the other end of the alarm rod 401 and the alarm body 202 can be adjusted by setting the adjustment block 103, thereby adjusting the sensitivity of the alarm. For example, the alarm rod 401 can be set to contact the alarm body 202 after the first channel panel 100 or the second channel panel 200 collapses by 1 mm, generating an alarm signal. Alternatively, the alarm rod 401 can be set to contact the alarm body 202 after the first channel panel 100 or the second channel panel 200 collapses by 5 mm, generating an alarm signal. The specific adjustments are based on the actual situation, and this utility model will not be further described.

[0053] The technical solution of this utility model uses a first mounting plate 301 and a second mounting plate 302 mounted on a first road panel body 100 and a second road panel body 200, thereby fixing the mounting column 101, the rotating column 201, and the alarm body 202. The alarm rod 401 mounted on the rotating column 201, when the first panel body collapses, causes the first mounting plate 301 and the mounting column 101 to move downwards simultaneously. When the mounting column 101 moves, it causes the limiting block 102 to move downwards and contact one end of the alarm rod 401, causing one end of the alarm rod 401 to move. Under the lever principle, the other end of the alarm rod 401 contacts the alarm body 202, triggering the alarm body 202. The alarm body 202 generates a signal, which is then sent to the alarm device 300 to alert vehicles on the road and bridge, preventing accidents. Compared with the prior art, the technical solution of this utility model is in a detection state before the road and bridge collapses, requiring minimal energy consumption. When a collapse occurs, it can promptly detect the collapse and issue an alarm, preventing accidents.

[0054] It should be noted that the mounting column 101 is positioned opposite to the rotating column 201 and the alarm body 202 in the gap between the first road panel 100 and the second road panel 200, so as to detect when a collapse occurs in the gap between the first road panel 100 and the second road panel 200. It should also be noted that in this utility model, the first road panel 100 and the second road panel 200 are staggered, and the specific number is based on the length of the road and bridge. However, it is necessary to ensure that at least one set of automatic road and bridge collapse alarm system is installed in the gap between adjacent first road panel 100 and second road panel 200. Of course, the number of the first mounting plate 301, the second mounting plate 302, the mounting column 101, the rotating column 201, the alarm body 202, the alarm rod 401, the limit block 102, and the adjustment block 103 can be increased according to the actual situation. The specific number is subject to the actual situation, and this utility model does not further limit it.

[0055] like Figure 2 As shown in Figure 3, a mounting groove 203 is provided on the rotating column 201, and the alarm rod 401 is installed in the mounting groove 203. Additionally, the adjusting block 130 can change position on the mounting column 101 to adjust the distance between it and the limiting block 102. For better installation and rotation of the alarm rod 401, preferably, pin holes 204 are provided on both sides of the mounting groove 203. After the pin passes through the pin holes 204, the alarm rod 401 is placed in the mounting groove 203. In this way, the alarm rod 401 can rotate on the rotating column 201 around the pin. It should be noted that the alarm rod 401 is divided into a first segment and a second segment by the pin. The length of the first segment is the distance from the pin to the bottom of the alarm body 202, and the length of the second segment is the distance from the pin to the mounting post 101. The length of the first segment is less than the length of the second segment, which ensures that the second segment always keeps the first segment in an upward state. The second segment is supported by the adjusting block 103, which limits the upward distance of the first segment and thus controls the distance between the first segment and the alarm body 202. In actual use, the position of the adjusting block 103 on the mounting post 101 can be changed to change the angle of the second segment, and the first segment can be rotated around the pin as the axis, thus adjusting the distance between the first segment and the alarm body 202.

[0056] like Figure 5-8As shown, the adjustment block 103 includes an adjustment frame 131, a first adjustment button 132, a second adjustment button 133, a first positioning block 134, a second positioning block 135, and an elastic element 136. The adjustment frame 131 is sleeved on the mounting post 101. One end of the first adjustment button 132 and the second adjustment button 133 pass through both sides of the adjustment frame 131 and are placed inside the adjustment frame 131. The first positioning block 134 and the second positioning block 135 are placed inside the mounting post 101 and are respectively connected to the first adjustment button 132 and the second adjustment button 133. The elastic element 136 is disposed between the first positioning block 134 and the second positioning block 135. During the adjustment phase, the first adjustment button 132 and the second adjustment button 133 are pressed simultaneously, causing the first adjustment button 132 and the second adjustment button 133 to drive the first positioning block 134 and the second positioning block 135 to move relative to each other, and squeezing the elastic element 136 while moving relative to each other. Pressure is continuously applied to the first adjustment button 132 and the second adjustment button 133, and the adjustment block 103 is pushed onto the mounting post 101. The vertical adjustment is performed. When the adjusted position meets the usage requirements, the first adjustment knob 132 and the second adjustment knob 133 are released, the elastic element 136 is reset, and the first positioning block 134 and the second positioning block 135 are pushed to move, so that the first adjustment knob 132 and the second adjustment knob 133 are reset. After reset, the mounting post 101 is clamped by the cooperation of the adjustment frame 131 with the first positioning block 134 and the second positioning block 135, thereby completing the position change of the adjustment block 103. It should be noted that, in order to ensure the stability of the elastic element 136, the first positioning block 134 and the second positioning block 135 are preferably provided with a first limiting protrusion 137 and a second limiting protrusion 138 respectively. The elastic element 136 is positioned between the first limiting protrusion 137 and the second limiting protrusion 138, and cooperates with the first positioning block 134 and the second positioning block 135 to complete the limiting of the elastic element 136. This prevents the elastic element 136 from disengaging from the first positioning block 134 and the second positioning block 135 during use. Preferably, the elastic element 136 is a spring.

[0057] To facilitate the adjustment of the first adjustment knob 132 and the second adjustment knob 133, in this utility model, preferably, a first slide rail 104 and a second slide rail 105 are provided opposite to each other on both sides of the mounting post 101, and the first adjustment knob 132 and the second adjustment knob 133 are respectively inserted into the first slide rail 104 and the second slide rail 105; thus, when adjusting the adjustment block 103, the first adjustment knob 132 and the second adjustment knob 133 move within the first slide rail 104 and the second slide rail 105 respectively; wherein, the first positioning block 134 and the second positioning block 135... The width of the positioning block 135 is greater than the width of the first slide rail 104 and the second slide rail 105; thus, during the operation, the first positioning block 134 and the second positioning block 135 can limit the movement and prevent the first adjustment button 132 and the second adjustment button 133 from disengaging from the first slide rail 104 and the second slide rail 105; and after adjustment, the first positioning block 134 and the second positioning block 135 cooperate with the adjustment frame 131 respectively to clamp the two sides of the first slide rail 104 and the two sides of the second slide rail 105, thereby completing the position adjustment of the adjustment block 103.

[0058] like Figure 7 As shown, to improve the stability of the adjusting block 103 after adjustment, preferably, the mounting post 101 is provided with a plurality of adjusting holes 106, and the first positioning block 134 and the second positioning block 135 are provided with positioning protrusions; in the installed state, the positioning protrusions are placed in the adjusting holes 106; when the adjusting block 103 is adjusted, the first positioning block 134 and the second positioning block 135 are reset under the action of the elastic element 136, and during the reset process, the positioning protrusions are respectively driven into the corresponding adjusting holes 106, and the stability of the adjusting block 103 is improved through the cooperation between the positioning protrusions and the adjusting holes 106; it should be noted that the distance between adjacent adjusting holes 106 is equal, and the distance between adjacent adjusting holes 106 is set according to the actual situation, and this utility model does not further limit it.

[0059] like Figure 4As shown, the alarm rod 401 includes a rod body 441, a movable frame 442, and a contact plate 443. The rod body 441 is rotatably mounted on the rotating column 201. The movable frame 442 is located at one end of the rod body 441 and is sleeved on the mounting column 101. The contact plate 443 is located at the other end of the rod body 441 and is positioned below the alarm body 202. The inner frame of the movable frame 442 is larger than the mounting column 101 to ensure that the movable frame 442 can move on the mounting column 101. The contact plate 443 is larger than the alarm body 202. The dimensions below 2 ensure better contact with the alarm body 202; after installation, the position of the moving frame 442 is restricted by changing the position of the adjusting block 103, which in turn drives the contact plate 443 to move through the rod 441, adjusting the distance between the contact plate 443 and the alarm body 202; when a collapse occurs, the moving frame 442 moves, and under the action of the lever principle, the rod 441 drives the contact plate 443 to move to the position of the alarm body 202. When the contact plate 443 contacts the alarm body 202, the alarm body 202 generates an alarm signal.

[0060] The alarm unit 202 includes a housing, a control module 222, and a switch body 223. The housing is mounted on the second mounting plate 302. The control module 222 is located inside the housing and connected to the alarm device 300. The switch body 223 is located inside the housing and connected to the control module 222. The contact plate 443 contacts the switch body 223 under the action of the rod 441, and generates an alarm signal through the switch body 223. The alarm signal is then sent to the alarm device 300 through the control module 222, which then triggers the alarm. In this invention, the switch body 223 is a micro switch. The control module 222 is preferably a microcontroller. It should be noted that this invention may also include a sending module 205, which sends the alarm information to the control center so that the control center can obtain information about the collapse. Preferably, the sending module 205 is a transmitter with a SIM card. Of course, it may also be other transmitting modules in the prior art, which will not be listed in this invention.

[0061] like Figure 1 As shown, since the technical solution of this utility model is used outdoors, a protective shell 400 is preferably provided to protect each component. The protective shell 400 is provided on the first channel panel 100 and the second channel panel 200. The first mounting plate 301, the second mounting plate 302, the mounting column 101, the rotating column 201, the alarm body 202 and the alarm rod 401 are placed inside the protective shell 400 to avoid false alarms caused by wind or animals.

[0062] It should be further explained that, during the usage phase, since it is impossible to predict whether the first road panel 100 or the second road panel 200 will collapse, this utility model requires at least two sets of automatic road and bridge collapse alarm systems to be installed on both the first road panel 100 and the second road panel 200. The two sets of automatic road and bridge collapse alarm systems are oriented in the same direction, that is, the mounting column 101 of the first set of automatic road and bridge collapse alarm systems is installed on the first road panel 100, and the mounting column 101 of the second set of automatic road and bridge collapse alarm systems is installed on the second road panel 200. In this way, regardless of whether the second road panel 200 or the second road panel 200 collapses, collapse information can be obtained.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A road bridge collapse automatic alarm system, characterized in that, The utility model relates to a kind of road bridge alarm device, including: First mounting plate (301) is arranged on first road panel body (100);And mounting column (101) is provided on the first mounting plate (301); Second mounting plate (302) is arranged on second road panel body (200);And rotating column (201) and alarm body (202) are adjacently provided on the second mounting plate (302); Alarm pole (401) is rotatably arranged on the rotating column (201);And one end of the alarm pole (401) is sleeved on the mounting column (101), and the other end is placed below the alarm body (202); Limiting block (102) and adjusting block (103) are provided on the mounting column (101), and the limiting block (102) and the adjusting block (103) form action space between them, and one end of the alarm pole (401) is sleeved on the action space; Alarm device (300) is arranged on the fence of road bridge, and is connected with the alarm body (202).

2. The automatic road bridge collapse warning system as claimed in claim 1, wherein, Rotating column (201) is provided with mounting slot (203), and the alarm pole (401) is arranged in the mounting slot (203).

3. The automatic road bridge collapse warning system as claimed in claim 2, wherein, Pin hole (204) is provided on both sides of the mounting slot (203), and pin shaft is placed in the mounting slot (203) after passing through the pin hole (204).

4. The automatic road bridge collapse warning system as claimed in claim 1, wherein, The adjusting block (103) can change position on the mounting column (101), and adjust the distance between the limiting block (102).

5. The automatic road bridge collapse warning system as claimed in claim 1 wherein, The adjusting block (103) includes: Adjusting frame (131) is sleeved on the mounting column (101); First adjusting knob (132) and second adjusting knob (133) are placed in the adjusting frame (131) after one end respectively passing through both sides of the adjusting frame (131); First positioning block (134) and second positioning block (135) are placed in the mounting column (101) and are connected with the first adjusting knob (132) and the second adjusting knob (133) respectively; Elastic member (136) is arranged between the first positioning block (134) and the second positioning block (135).

6. The automatic road bridge collapse warning system as claimed in claim 5, wherein, A plurality of adjusting holes (106) are provided on the mounting column (101), and positioning protrusions are provided on the first positioning block (134) and the second positioning block (135);In the installed state, the positioning protrusions are placed in the adjusting hole (106).

7. The automatic road bridge collapse warning system as claimed in claim 5, wherein, First slide (104) and second slide (105) are oppositely arranged on both sides of the mounting column (101), and the first adjusting knob (132) and the second adjusting knob (133) are respectively arranged in the first slide (104) and the second slide (105).

8. The automatic road bridge collapse warning system as claimed in claim 1, wherein, The alarm pole (401) includes: Rod body (441) is rotatably arranged on the rotating column (201); Moving frame (442) is arranged at one end of the rod body (441), and the moving frame (442) is sleeved on the mounting column (101); Contact plate (443) is arranged at the other end of the rod body (441) and is placed below the alarm body (202).

9. The automatic road bridge collapse warning system as claimed in claim 1, wherein, The alarm body (202) includes: Shell is arranged on the second mounting plate (302); A control module (222) is arranged in the shell and connected with the alarm device (300); A switch body (223) is arranged in the shell and connected with the control module (222).

10. The automatic road bridge collapse warning system as claimed in claim 1, wherein, A protective shell (400) is arranged on the first road panel body (100) and the second road panel body (200).

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