Road and bridge safety detection device and detection method

Abstract

The present invention discloses a road bridge safety detection device and detection method, including a bridge body and a wet joint between the bridge bodies; further comprising a fixed detection frame, wherein the fixed detection frame for observation and detection is located below the bridge body, and the fixed detection frame is installed with a wheel mounting frame at one end facing the bridge body, and the wheel mounting frame is provided with two symmetrically arranged support wheels, a wet joint movable block, and the wet joint movable block for generating electricity by passing vehicles is located in the wet joint, and the inner wall of the wet joint is connected to a concrete block for installing the wet joint movable block. This scheme of the present invention replaces the traditional manual detection method using optical instruments and the method of installing electronic devices on the bridge body for detection, and achieves another detection effect. Through this method, unattended detection can be carried out, and the detection data is recorded on a cardboard. When detection is required, it is only necessary to manually observe the line data on the cardboard to know the situation of the bridge in the recent period, which is very convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of road and bridge detection, and more specifically, to a road and bridge safety detection device and detection method. Background Art

[0002] Highway bridge inspection includes inspection and verification of bridge structures, as well as bridge load testing and measurement. Inspections include bridge stress, displacement and deformation, etc.

[0003] The road and bridge safety inspection device disclosed in China Invention Publication No. CN212714512U includes a vehicle body, a rotating arm rotatably mounted on the top of the vehicle body, a horizontal arm fixedly connected to the top of the rotating arm, a movable arm slidably sleeved on one end of the horizontal arm, and a connecting element rotatably connected to the bottom end of the movable arm. The connecting element achieves a detection effect by contacting the frame with the bridge body and using electronic devices to inspect the road and bridge columns.

[0004] However, the detection electronic devices used in existing technologies are greatly affected by the environment. They are not only inaccurate but also have a short lifespan. When in use, multiple sets of electronic devices need to be placed at different positions of the bridge body for simultaneous detection. When in use, a large number of people are still needed to carry out on-site detection, and unattended detection cannot be carried out. When calibrating on-site, the instrument must be set up before measurement is carried out, which cannot achieve the effect of both observation and measurement, and the efficiency is low.

[0005] To this end, we propose a road and bridge safety detection device and detection method to solve the above problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a road and bridge safety detection device and detection method to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a road bridge safety detection device and detection method, comprising a bridge body and wet joints between bridge bodies;

[0008] Also includes:

[0009] A fixed detection frame for observation and detection is located below the bridge body, the fixed detection frame is fixedly installed on the ground, and a wheel mounting frame is installed on one end of the fixed detection frame facing the bridge body, and two symmetrically arranged support wheels are provided on the wheel mounting frame. A marking assembly is also provided on the bridge body, and the marking assembly is a linkage marking frame or a fixed marking frame;

[0010] A marking and recording drawing for recording the deformation of the bridge body is located on the two supporting wheels, one end of the marking and recording drawing is connected to the storage wheel, and the other end is connected to the power pulley;

[0011] A linkage marking frame for marking on the marking recording drawing is located on the bridge body, and a pen holder is installed on the side of the linkage marking frame facing the marking recording drawing, and a detection pen is installed in the pen holder, the pen end of which is against the marking recording drawing;

[0012] A wet joint movable block that generates electricity using passing vehicles is located in the wet joint. The inner wall of the wet joint is connected to a concrete block for installing the wet joint movable block. The wet joint movable block is movably connected to the concrete block. A generator frame and a power generation enameled coil in the generator frame are also provided on the concrete block. A movably connected movable pressure plate is installed on the wet joint movable block, and a permanent magnet column that cooperates with the power generation enameled coil is provided on the movable pressure plate.

[0013] In a preferred embodiment, the end of the detection pen away from the marking recording drawing is connected to a pressure spring and a pressure pen cap, the two ends of the pressure spring are respectively welded to the pressure pen cap and the detection pen, the linkage marking frame is threadedly connected to a placement frame, and the pressure pen cap is threadedly connected to the placement frame.

[0014] In a preferred embodiment, the marking recording drawing sheet is configured as a plurality of marking module papers, one end of each of the marking module papers is coiled on the storage wheel, each of the marking module papers includes a drawing surface paper, a horizontal scale and a vertical scale, the horizontal scale and the vertical scale are arranged on the edge of the drawing surface paper, the drawing surface paper is located in the center of the marking module paper, and the drawing surface paper is a long strip structure.

[0015] In a preferred embodiment, the movable pressure plate is movably connected to a limit rod, and the outer sleeve of the limit rod is provided with a return spring with one end abutting against the movable pressure plate and the other end abutting against the wet seam movable block, the permanent magnet column is threadedly connected to the limit rod, and a storage battery electrically connected to the power generation enameled coil is installed on the fixed detection frame.

[0016] In a preferred embodiment, a detection module is provided below the power generation enameled coil in the power generation rack. The detection module is a plurality of detection enameled coils. The plurality of detection enameled coils are equidistantly arranged in the power generation rack from top to bottom. Each of the detection enameled coils is individually electrically connected to the storage battery. A circuit board and a lithium battery pack are provided in the storage battery. A computer is electrically connected to the circuit board. The computer has a built-in network module. The network module is a 5G wireless network component.

[0017] In a preferred embodiment, a support plate is further included, which is used to support the marking recording drawing and is located on the side of the marking recording drawing facing away from the detection pen. An electric touch panel is installed on the side of the support plate facing the marking recording drawing.

[0018] In a preferred embodiment, a heating rod is further included, and the heating rod for heating the detection pen is located in the pen holder. The detection pen includes a metal leather pen holder, and one end of the heating rod facing the metal leather pen holder is equipped with two metal pulleys that are against the metal leather pen holder and a contact sleeve arranged outside the metal pulley. A telescopic spring is welded to the end of the heating rod away from the metal leather pen holder.

[0019] In a preferred embodiment, the fixed marker frame includes a vertical detection component and a horizontal detection component, the vertical detection component includes a limit frame that moves horizontally on the fixed marker frame, and the horizontal detection components all include a limit frame that moves longitudinally on the fixed marker frame, and the limit frame slides with the fixed marker frame through a pulley, the limit frame on the horizontal detection component is installed on the bridge body with a pulley that slides horizontally with the bridge body, and the limit frame on the vertical detection component is installed on the bridge body with a pulley that slides longitudinally with the bridge body, a pen holder and a detection pen installed in the pen holder with the pen end against the bridge body are installed in the limit frame.

[0020] A method for detecting a road and bridge safety detection device comprises the following steps:

[0021] Step 1: First, start the power pull wheel and let it pull the marking recording drawing onto the support plate. At this time, the detection pen set just slides into the drawing paper;

[0022] If the bridge body's deformation and displacement are small, the picture on the moving paper will not change;

[0023] If the bridge body is displaced laterally, a horizontal trace will appear on the drawing paper;

[0024] If the bridge body is displaced longitudinally, vertical marks will appear on the drawing paper; the greater the displacement of the bridge body, the longer the distance of the mark. In this way, it is obvious that the horizontal deformation of the bridge body can be detected by combining observation with the horizontal and vertical scales:

[0025] Step 2: When the car is on the bridge deck, it presses the movable pressure plate, so that the limiter on the movable pressure plate moves up and down, and the limit rod drives the permanent magnet column to move back and forth in the generator enameled coil, thus generating current;

[0026] If the bridge body deforms up and down, the height difference between the two wet joint movable blocks will follow, so the distance that the permanent magnet column penetrates into the generating enameled coil will change. When the permanent magnet column contacts the detection enameled coil, another current is generated. This current is recorded in the computer, and the detection of the up and down deformation of the bridge body is completed.

[0027] Step 3: According to step 1, every quarter, that is, every three months, the marking and recording drawings are covered once, and the power pulley is rotated to drive the already recorded marking and recording drawings to rotate and complete the storage, and the new marking and recording drawings are covered on the support plate to continue recording.

[0028] The technical effects and advantages of the present invention are as follows:

[0029] 1. The present invention can always apply pressure to the detection pen through the pressure spring provided, so that the tip of the detection pen always rests on the marking recording drawing to complete the recording;

[0030] 2. The present invention can record the deformation of the bridge body through the provided moving surface paper. Unlike the use of electronic sensors, this method is simpler and less prone to damage. The permanent magnet column moves back and forth in the power generation enameled coil to achieve the effect of power generation and achieve comprehensive energy utilization. The provided power generation structure can fully utilize the movement of passing vehicles to store energy, and can also detect the deformation of the bridge body when it deforms up and down. The provided electric touch panel can record synchronously with the drawing mark, thereby achieving the effect of electronic recording.

[0031] 3. The present invention uses a metal pulley that can be electrically heated. In winter, the metal pulley can generate heat, thereby heating the metal leather pen holder in contact with it, avoiding the problem of solid precipitation of oil. When the bridge body moves up and down, the metal pulley creeps on the surface of the metal leather pen holder, reducing the problem of oil sticking. Through this solution, the detection pen can be directly applied to the bridge body, and the displacement and deformation of the bridge body can be preliminarily judged by observing the drawn lines on the bridge body. This solution is relatively simple in structure, low in cost, and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic side structural diagram of the first embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the front structure of the first embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the top view of the marking and recording drawing of the first embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the three-dimensional structure of the wet joint movable block according to the first embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the top view of the wet joint movable block according to the first embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the internal structure of the power generation rack according to the first embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the internal structure of a power generation rack according to a second embodiment of the present invention;

[0039] Figure 8 Schematic diagram of the structure of the wet joint movable block with different heights according to the second embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the connection structure between the electric touch panel and the marking recording drawing according to the third embodiment of the present invention;

[0041] Figure 10 This is a schematic diagram of the connection structure between the heating rod and the detection pen according to the fourth embodiment of the present invention;

[0042] Figure 11 This is a schematic diagram of the connection structure between the fixed marking frame and the bridge body according to the fifth embodiment of the present invention;

[0043] Figure 12 For the present invention Figure 11 A schematic diagram of the local enlarged structure;

[0044] Figure 13 For the present invention Figure 11 Schematic diagram of the locally enlarged structure at point B in the middle.

[0045] The accompanying drawings are marked as follows: 1. Fixed detection frame; 101. Wheel mounting frame; 102. Storage wheel; 103. Power pulley; 104. Support wheel; 2. Linkage marking frame; 201. Pen cover frame; 202. Detection pen; 203. Pressure spring; 204. Pressure pen cap; 205. Metal leather pen holder; 206. Limiting frame; 3. Marking and recording drawings; 301. Drawing paper; 302. Horizontal scale; 303. Vertical scale; 4. Wet seam movable block; 401. Movable pressure plate; 402. Return spring; 403. Permanent magnet column; 404. Power generation frame; 405. Power generation enameled coil; 406. Storage battery; 407. Detection enameled coil; 5. Fixed marking frame; 6. Support plate; 601. Electric touch panel; 7. Heating rod; 701. Metal pulley; 702. Contact sleeve; 703. Telescopic spring. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0047] Example 1

[0048] Refer to the instruction manual Figures 1-6 , a road bridge safety detection device of the present invention includes a bridge body and wet joints between the bridge bodies; it also includes: a fixed detection frame 1, the fixed detection frame 1 for observation and detection is located under the bridge body, the fixed detection frame 1 is fixedly installed on the ground, and a wheel mounting frame 101 is installed on one end of the fixed detection frame 1 facing the bridge body, and two symmetrically arranged support wheels 104 are provided on the wheel mounting frame 101. A marking component is also provided on the bridge body, and the marking component is a linkage marking frame 2 or a fixed marking frame 5; a marking recording drawing 3 for recording the deformation of the bridge body. The marking recording drawing 3 is located on the two support wheels 104, and one end of the marking recording drawing 3 is connected to a storage wheel 102, and the other end is connected to a power pulley 103; the linkage marking frame 2 is used to mark the deformation of the bridge body. The linkage marking frame 2 for marking on the recording drawing 3 is located on the bridge body, and a pen holder 201 is installed on the side of the linkage marking frame 2 facing the marking recording drawing 3, and a detection pen 202 is installed in the pen holder 201, the pen tip of which is against the marking recording drawing 3; the wet joint movable block 4, which uses the passing vehicles to generate electricity, is located in the wet joint, and the inner wall of the wet joint is connected to a concrete block for installing the wet joint movable block 4, and the wet joint movable block 4 is movably connected to the concrete block. A power generation frame 404 and a power generation enameled coil 405 in the power generation frame 404 are also provided on the concrete block. A movably connected movable pressure plate 401 is installed on the wet joint movable block 4, and a permanent magnet column 403 cooperating with the power generation enameled coil 405 is provided on the movable pressure plate 401;

[0049] The end of the detection pen 202 away from the marking recording drawing 3 is connected to a pressure spring 203 and a pressure pen cap 204, the two ends of the pressure spring 203 are respectively welded to the pressure pen cap 204 and the detection pen 202, the linkage marking frame 2 is threadedly connected to a placement frame, and the pressure pen cap 204 is threadedly connected to the placement frame; the set pressure spring 203 can always apply pressure to the detection pen 202, so that the pen end of the detection pen 202 is always against the marking recording drawing 3 to complete the recording.

[0050] The marking recording drawing 3 is configured as a plurality of marking module papers, one end of which is coiled on the storage wheel 102. Each marking module paper includes a drawing surface paper 301, a horizontal scale 302 and a vertical scale 303. The horizontal scale 302 and the vertical scale 303 are arranged at the edge of the drawing surface paper 301. The drawing surface paper 301 is located in the center of the marking module paper, and the drawing surface paper 301 is a long strip structure. The setting of the drawing surface paper 301 can record the location of the deformation of the bridge body. Compared with the use of electronic sensors, this method is simpler and not easy to break.

[0051] A limit rod is movably connected to the movable pressure plate 401, and a return spring 402 is provided on the outer sleeve of the limit rod, one end of which is against the movable pressure plate 401 and the other end is against the wet seam movable block 4. The permanent magnet column 403 is threadedly connected to the limit rod, and a storage battery 406 electrically connected to the power generation enameled coil 405 is installed on the fixed detection frame 1; the permanent magnet column 403 moves back and forth in the power generation enameled coil 405, so as to achieve the effect of power generation and the comprehensive utilization of energy.

[0052] Specifically, when in use, the displacement and deformation of the bridge body are detected by using the marking recording drawing 3 and the detection pen 202 instead of the electronic sensor and manual detection method. The impact of the passing vehicles causes the limit rod to move back and forth, thereby driving the permanent magnet column 403 to move back and forth in the power generation enameled coil 405 to complete power generation, thereby supplementing the power of this solution.

[0053] Example 2

[0054] Refer to the instruction manual Figure 7 and Figure 8 The difference between this embodiment and the first embodiment is that the present invention provides a road bridge safety detection device, including a detection module located below the power generation enameled coil 405 in the power generation frame 404. The detection module is a plurality of detection enameled coils 407. The plurality of detection enameled coils 407 are equidistantly arranged from top to bottom in the power generation frame 404. Each detection enameled coil 407 is individually electrically connected to a storage battery 406. The storage battery 406 is provided with a circuit board and a lithium battery pack. The circuit board is electrically connected to a computer. The computer has a built-in network module. The network module is a 5G wireless network component. The power generation structure can fully utilize the movement of passing vehicles to store energy. When the bridge body deforms up and down, the deformation of the bridge body can also be detected.

[0055] Specifically, if there is a height difference in the bridge body, the permanent magnet column 403 will enter the detection enameled coil 407 to complete another set of power generation. The detection enameled coils 407 are located at different distances and correspond to different heights. In this way, not only the up and down displacement of the bridge body can be detected, but also the distance of the displacement can be detected.

[0056] Example 3

[0057] Refer to the instruction manual Figure 9 This embodiment is a further improvement on the second embodiment. A road and bridge safety inspection device of the present invention further includes a support plate 6 for supporting the marking and recording drawing 3. The support plate 6 is located on the side of the marking and recording drawing 3 facing away from the inspection pen 202. The support plate 6 is installed on the side facing the marking and recording drawing 3 with an electric touch panel 601. The electric touch panel 601 can record synchronously with the drawing mark, thereby achieving an electronic recording effect.

[0058] Specifically, when drawing a line, the electric touch panel 601 below the marking recording drawing 3 is subjected to force sensing and is recorded synchronously. The electric touch panel 601 can be understood as a handwriting board, which records the trajectory of the line and completes the electronic record. The recorded information is transmitted to the electrically connected computer and is powered by the storage battery 406.

[0059] Example 4

[0060] Refer to the instruction manual Figure 10 , this embodiment is a further improvement on the third embodiment. A road and bridge safety detection device of the present invention includes a heating rod 7 for heating the detection pen 202. The heating rod 7 is located in the pen holder 201. The detection pen 202 includes a metal leather pen holder 205. The end of the heating rod 7 facing the metal leather pen holder 205 is equipped with two metal pulleys 701 that abut against the metal leather pen holder 205 and a contact sleeve 702 arranged outside the metal pulley 701. The end of the heating rod 7 away from the metal leather pen holder 205 is welded with a telescopic spring 703. By electrically heating the metal pulley 701, the metal pulley 701 can generate heat in winter, thereby heating the metal leather pen holder 205 in contact, thereby avoiding the problem of solid precipitation of oil. When the bridge body moves up and down, the metal pulley 701 creeps on the surface of the metal leather pen holder 205, thereby reducing the problem of oil sticking.

[0061] Specifically, in winter, the metal pulley 701 is provided with electric energy by the storage battery 406, so that the metal pulley 701 heats the metal leather pen barrel 205, thereby achieving the effect of heating the oil inside the metal leather pen barrel 205. Moreover, the metal pulley 701 is only on the surface of the metal leather pen barrel 205, that is, there is no need to heat the oil in the entire detection pen 202, that is, only the pen tip connection part needs to be heated, thereby saving energy.

[0062] Example 5

[0063] Refer to the instruction manual Figure 11-13, the difference between this embodiment and embodiments one, two, three and four is that a road bridge safety detection device of the present invention includes a fixed marker frame 5 including a vertical detection component and a horizontal detection component, the vertical detection component includes a limit frame 206 that moves horizontally on the fixed marker frame 5, and the horizontal detection component includes a limit frame 206 that moves longitudinally on the fixed marker frame 5, the limit frame 206 completes sliding with the fixed marker frame 5 through a pulley, the limit frame 206 on the horizontal detection component is installed with a pulley that slides horizontally with the bridge body toward the bridge body, the limit frame 206 on the vertical detection component is installed with a pulley that slides longitudinally with the bridge body toward the bridge body, a pen holder 201 and a detection pen 202 installed in the pen holder 201 with the pen end against the bridge body are installed in the limit frame 206; through this solution, the detection pen 202 is directly applied to the bridge body, and the displacement deformation of the bridge body can be preliminarily judged by observing the line drawn on the bridge body. This solution is relatively simple in structure, low in cost, and more convenient;

[0064] Specifically, when the bridge body undergoes lateral displacement, the bridge body moves laterally on the surface of the lateral detection component, thereby driving the detection pen 202 to draw lines on the bridge body. When the bridge body undergoes longitudinal displacement, the bridge body moves longitudinally on the vertical detection component, thereby driving the detection pen 202 to draw lines on the bridge body. The detection only requires observing the distance of the drawn lines.

[0065] A method for detecting a road and bridge safety detection device comprises the following steps:

[0066] Step 1: First, start the power pull wheel 103 and let it pull the marking recording paper 3 onto the support plate 6. At this time, the detection pen 202 is just slid into the drawing paper 301.

[0067] If the deformation of the bridge body is small, the picture on the drawing paper 301 will not change;

[0068] If the bridge body is displaced laterally, a horizontal trace will appear on the drawing surface paper 301;

[0069] If the bridge body is displaced longitudinally, a vertical mark will appear on the drawing paper 301; the greater the displacement of the bridge body, the longer the mark. In this way, it is obvious that the horizontal deformation of the bridge body can be detected by combining observation with the horizontal scale 302 and the vertical scale 303:

[0070] Step 2: When the car is on the bridge deck, it presses the movable pressure plate 401, so that the limiter on the movable pressure plate 401 moves up and down, and the limiter rod drives the permanent magnet column 403 to move back and forth in the generating enameled coil 405, thus generating current;

[0071] If the bridge body deforms up and down, the height difference between the two wet joint movable blocks 4 will follow. In this way, the distance that the permanent magnet column 403 penetrates into the generating enameled coil 405 will change. When the permanent magnet column 403 contacts the detecting enameled coil 407, another current is generated. This current is recorded in the computer, thus completing the detection of the vertical deformation displacement of the bridge body.

[0072] Step 3: According to step 1, every quarter, that is, every three months, the marking recording drawing 3 is covered once, and the power pull wheel 103 is rotated to drive the already recorded marking recording drawing 3 to rotate and complete the storage, so that the new marking recording drawing 3 is covered on the support plate 6 to continue recording.

[0073] The working principle of the invention is: a fixed detection frame 1 is installed on the bottom surface under the bridge body. When the bridge body is displaced and deformed, the structure on the fixed detection frame 1 remains stationary, and the bridge head body moves. In this way, under the action of the moving bridge body, the line drawing action is completed, the horizontal displacement detection of the bridge body is completed, and the impact of passing vehicles is used to complete the formation of current. In this way, the up and down displacement detection of the bridge body is completed by the formed current. This scheme replaces the traditional manual detection using optical instruments and the detection method using electronic devices installed on the bridge body to achieve another detection effect. Through this method, unattended detection can be carried out, and the detection data is recorded on the cardboard. When detection is required, it is only necessary to manually observe the line drawing data on the cardboard to know the situation of the bridge in the recent period, which is very convenient.

[0074] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0075] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0076] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A road bridge safety detection device, comprising a bridge body and wet joints between bridge bodies; It is characterized by: Also includes: A fixed detection frame (1), the fixed detection frame (1) for observation and detection is located below the bridge body, the fixed detection frame (1) is fixedly installed on the ground, the fixed detection frame (1) is installed with a wheel mounting frame (101) at one end facing the bridge body, the wheel mounting frame (101) is provided with two symmetrically arranged support wheels (104), and the bridge body is also provided with a marking component, the marking component is a linkage marking frame (2); A marking recording drawing (3) for recording the deformation of the bridge body is located on the two support wheels (104), one end of the marking recording drawing (3) is connected to the storage wheel (102), and the other end is connected to the power pull wheel (103); A linkage marking frame (2) for marking on the marking recording drawing (3) is located on the bridge body, a pen holder (201) is installed on the side of the linkage marking frame (2) facing the marking recording drawing (3), and a detection pen (202) is installed in the pen holder (201), the pen end of which abuts against the marking recording drawing (3); A wet joint movable block (4) for generating electricity by using passing vehicles is located in the wet joint, the inner wall of the wet joint is connected to a concrete block for mounting the wet joint movable block (4), the wet joint movable block (4) is movably connected to the concrete block, a power generation frame (404) and a power generation enameled coil (405) in the power generation frame (404) are further provided on the concrete block, a movably connected movable pressure plate (401) is installed on the wet joint movable block (4), and a permanent magnet column (403) is provided on the movable pressure plate (401) that cooperates with the power generation enameled coil (405); One end of the detection pen (202) away from the marking recording drawing (3) is connected to a pressure spring (203) and a pressure pen cap (204), and the two ends of the pressure spring (203) are respectively welded to the pressure pen cap (204) and the detection pen (202), and a placement frame is threadedly connected to the linkage marking frame (2), and the pressure pen cap (204) is threadedly connected to the placement frame; The marking recording drawing (3) is configured as a plurality of marking module papers, one end of each of the marking module papers being wound on the storage wheel (102), each of the marking module papers comprising a drawing surface paper (301), a horizontal scale (302) and a vertical scale (303), the horizontal scale (302) and the vertical scale (303) being arranged at the edge of the drawing surface paper (301), the drawing surface paper (301) being located at the center of the marking module paper, and the drawing surface paper (301) being a long strip structure; The movable pressure plate (401) is movably connected to a limit rod, and the limit rod is provided with a return spring (402) with one end abutting against the movable pressure plate (401) and the other end abutting against the wet seam movable block (4). The permanent magnet column (403) is threadedly connected to the limit rod, and a storage battery (406) electrically connected to the power generation enameled coil (405) is installed on the fixed detection frame (1); A detection module is provided below the power generation enameled coil (405) in the power generation frame (404), and the detection module is a plurality of detection enameled coils (407). The plurality of detection enameled coils (407) are equidistantly provided in the power generation frame (404) from top to bottom, and each of the detection enameled coils (407) is electrically connected to the storage battery (406). A circuit board and a lithium battery pack are provided in the storage battery (406). A computer is electrically connected to the circuit board, and a network module is built into the computer. The network module is a 5G wireless network component. It also includes a support plate (6), the support plate (6) for supporting the marking recording drawing (3) is located on a side of the marking recording drawing (3) facing away from the detection pen (202), and an electric touch panel (601) is installed on a side of the support plate (6) facing the marking recording drawing (3); The invention also includes a heating rod (7) for heating the detection pen (202), the heating rod (7) being located in the pen holder (201), the detection pen (202) including a metal leather pen holder (205), and one end of the heating rod (7) facing the metal leather pen holder (205) being provided with two metal pulleys (701) abutting against the metal leather pen holder (205) and a contact sleeve (702) disposed outside the metal pulley (701), and one end of the heating rod (7) away from the metal leather pen holder (205) being welded with a telescopic spring (703).

2. The detection method of a road and bridge safety detection device according to claim 1, characterized in that: The steps include: Step 1: First, start the power pull wheel (103), and let the power pull wheel (103) pull the marking recording drawing (3) onto the support plate (6). At this time, the detection pen (202) set just slides into the drawing surface paper (301); If the deformation and displacement of the bridge body is small, the picture on the moving surface paper (301) does not change; If the bridge body is displaced laterally, a transverse trace will appear on the drawing paper (301); If the bridge body is displaced longitudinally, vertical traces will appear on the drawing paper (301); The greater the displacement of the bridge body, the longer the distance of the trace; thus, it is obvious that the horizontal deformation of the bridge body can be detected by combining observation with the horizontal scale (302) and the vertical scale (303); Step 2: When the car is traveling on the bridge deck, the car presses the movable pressure plate (401), so that the limiter on the movable pressure plate (401) moves up and down, and the limiter rod drives the permanent magnet column (403) to move back and forth in the power generation enameled coil (405), thereby generating current; If the bridge body deforms and moves up and down, the height difference between the two wet joint movable blocks (4) will follow, so that the distance that the permanent magnet column (403) penetrates into the power generation enameled coil (405) will change. When the permanent magnet column (403) contacts the detection enameled coil (407), another current is generated. This current is recorded in the computer, and the detection of the vertical deformation displacement of the bridge body is completed; Step 3: According to step 1, every quarter, that is, every three months, the marking recording drawing (3) is covered once, and the power pull wheel (103) is rotated to drive the already recorded marking recording drawing (3) to rotate and complete the storage, so that the new marking recording drawing (3) is covered on the support plate (6) and continues recording.

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