Assembly type prefabricated bridge and culvert component installation outer contour flush degree detection device

Abstract

The invention discloses an assembly type prefabricated bridge and culvert component installation outer contour flush degree detection device which comprises a horizontal plate, the horizontal plate is provided with a detection assembly, the detection assembly comprises a sliding rail arranged at the upper end of the horizontal plate, the sliding rail is slidably connected with a sliding block, the rear side of the sliding block is provided with an installation plate, and the installation plate is provided with an installation hole. A double-shaft motor is mounted at the upper end of the mounting plate, an output shaft at the lower end of the double-shaft motor penetrates through the mounting plate and is fixedly connected with a first gear, two vertical plates are fixedly connected to the upper end of the horizontal plate, and the adjacent sides of the two vertical plates are jointly and fixedly connected with a rack. The offset between an upper wall and a lower wall is detected through a laser sensor, the levelness of a subsequent wall is ensured, and during detection, unqualified positions can be automatically marked, so that subsequent workers can conveniently and uniformly rectify and improve the detection efficiency, the amount of pigment on an elastic rope is ensured by extruding a cylindrical sponge, and the detection efficiency is improved. And the condition of unclear marking is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of flatness detection, and particularly to a detection device for the outer contour flatness of assembled precast bridge and culvert components during installation. Background Technique

[0002] In the field of construction engineering, the application of assembled precast components is becoming more and more widespread. When installing assembled precast components, it is crucial to ensure the flatness of their outer contours, which directly affects the overall appearance quality of the building, structural stability, and the smooth progress of subsequent decoration work.

[0003] Currently, during the detection of the outer contour flatness of assembled precast components during installation, there are some problems that need to be solved urgently. On the one hand, traditional detection methods often rely on manual measurement using simple tools. This method has low efficiency, and the detection results are easily affected by human factors, making it difficult to guarantee accuracy. On the other hand, even if the uneven position of the component outer contour is detected, there is a lack of effective automatic marking means, resulting in difficulty for staff to quickly and accurately locate and record the unqualified positions, and subsequent rectification work is thus hindered. In addition, if the materials and methods used for marking are not properly controlled, the situation of unclear marking is likely to occur, which will also bring inconvenience to subsequent work.

[0004] Therefore, it is necessary to design a detection device for the outer contour flatness of assembled precast bridge and culvert components to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a detection device for the outer contour flatness of assembled precast bridge and culvert components is proposed. The offset between the upper and lower walls is detected by a laser sensor to ensure the flatness of the subsequent wall. During detection, it can automatically mark the unqualified positions, thus facilitating subsequent staff to uniformly rectify, improving the detection efficiency, and ensuring the amount of pigment on the elastic rope by squeezing the cylindrical sponge to avoid the situation of unclear marking.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An inspection device for the flatness of the outer contour of assembled precast bridge and culvert components, including a horizontal plate, on which a detection component is provided. The detection component includes a slide rail arranged at the upper end of the horizontal plate, a slider is slidably connected to the slide rail, an installation plate is installed at the rear side of the slider, a dual-axis motor is installed at the upper end of the installation plate, the lower output shaft of the dual-axis motor penetrates through the installation plate and is fixedly connected with a first gear, two vertical plates are fixedly connected to the upper end of the horizontal plate, a rack is fixedly connected to the adjacent sides of the two vertical plates, the rack meshes with the first gear, an installation block is fixedly connected to the front side of the slider, and a laser sensor is installed on the front side of the installation block. A marking component is arranged on the front side of the horizontal plate.

[0008] Preferably, the marking component includes a rectangular box arranged on the front side of the horizontal plate. A second electromagnet is embedded in the front inner wall of the rectangular box. Two telescopic rods are fixedly connected to the rear side of the second electromagnet. The telescopic ends of the two telescopic rods are fixedly connected with a pulling block. The adjacent side of the pulling block and the second electromagnet is elastically connected by a third spring. A square block is fixedly connected to the front side of the pulling block. A rotating shaft is rotatably connected through the square block by a damping bearing. Connecting blocks are fixedly connected to both the upper and lower sides of the rotating shaft. Inclined blocks are fixedly connected to both connecting blocks. An elastic cord is fixedly connected to both the inner top and inner bottom of the rectangular box. Triangular blocks are fixedly connected to both the left and right inner walls of the rectangular box.

[0009] Preferably, a pushing component is arranged on the front side of the horizontal plate. The pushing component includes a fixed box arranged on the front side of the slider. A pneumatic rod is fixedly connected to the left inner wall of the fixed box. The telescopic end of the pneumatic rod is fixedly connected with a moving block. An L-shaped block is fixedly connected to the right side of the moving block. The lower end of the L-shaped block is fixedly connected to the upper end of the rectangular box.

[0010] Preferably, first magnetic blocks are fixedly connected to the opposite sides of the two inclined blocks. Second magnetic blocks are fixedly connected to both the left and right inner walls of the rectangular box. The adjacent sides of the two first magnetic blocks and the corresponding second magnetic blocks repel each other with the same polarity.

[0011] Preferably, a cylindrical sponge is fixedly connected to the inner top of the rectangular box. Red pigment is adsorbed in the cylindrical sponge. A support block is fixedly connected to the right inner wall of the rectangular box. An extrusion component is arranged on the left inner wall of the rectangular box.

[0012] Preferably, the extrusion component includes a reciprocating box fixedly connected to the left inner wall of the rectangular box. A T-shaped block is slidably connected in the reciprocating box. An extrusion block is arranged on the left side of the T-shaped block. The T-shaped block and the left inner wall of the rectangular box are elastically connected by a first spring. A transmission rod is vertically arranged in the rectangular box, and a cam is arranged on the transmission rod.

[0013] Preferably, the upper end of the transmission rod extends to the outside. A vertical rod is rotatably connected to the upper end of the fixed box. Second gears are provided on both the vertical rod and the transmission rod. The upper output shaft of the dual-axis motor is drivingly connected to the vertical rod through a transmission assembly.

[0014] Preferably, a conductive block is fixedly connected to the inner top of the fixed box. A power source is provided inside the horizontal plate. Two contacts are provided on the right side of the moving block. The power source, the two contacts, the conductive block, and the second electromagnet form a circuit through wires.

[0015] Preferably, an adjustment groove is provided on the right side of the T-shaped block. A first electromagnet is provided on the left inner wall of the adjustment groove. A rectangular block is slidably connected inside the T-shaped block. The adjacent sides of the rectangular block and the first electromagnet are elastically connected by a second spring. The right side of the rectangular block is fixedly connected to the extrusion block. A counting sensor is fixedly connected to the inner top of the fixed box. A contact block is fixedly connected to the left side of the moving block.

[0016] The present invention has the following beneficial effects:

[0017] 1. Compared with the prior art, the flatness detection device for the outer contour of the assembled precast component of the present invention realizes the automatic movement detection of the laser sensor by setting a detection component and using the cooperation of the slide rail, the slider, the dual-axis motor, the first gear and the rack, changing the situation of low efficiency and easy interference by human factors in the traditional manual measurement, and greatly improving the detection efficiency and accuracy;

[0018] 2. Compared with the prior art, the present device is provided with a marking component. When an unqualified position is detected, it can automatically mark it, avoiding the drawback in the prior art that it is difficult to quickly and accurately mark the position when a problem is detected, facilitating the subsequent unified rectification by the staff, and further improving the convenience and efficiency of the overall detection work;

[0019] 3. Compared with the prior art, the present device is provided with an extrusion component in the marking component. By extruding the cylindrical sponge to ensure that there is enough pigment on the elastic cord, the problem that the existing marking method may result in unclear marking is solved, ensuring the clarity of the marking, providing a clear and definite indication for the subsequent rectification, and by controlling the displacement of the rectangular block, controlling the extrusion of the cylindrical sponge, thereby ensuring the amount of pigment on the elastic cord and avoiding waste of excessive pigment;

[0020] 4. Compared with the prior art, the various components of the present device are cleverly coordinated, such as the cooperative work of the pushing component, the marking component, the extrusion component, etc., realizing the automation and high efficiency of a series of processes such as detection and marking, and greatly improving the efficiency of building assembly.

[0021] In summary, through the unique design of the detection components, the detection device for the flatness of the outer contour of the assembled precast component realizes the automatic movement detection of the laser sensor, improving the detection efficiency and accuracy; its marking component can automatically mark the unqualified positions, facilitating subsequent rectification; the extrusion component ensures clear marking; the coordinated work of each component realizes the automation and high efficiency of the detection and marking processes, effectively solving the problems of low manual detection efficiency, inconvenient marking and unclear marking in the prior art, and comprehensively improving the quality and efficiency of the detection work for the flatness of the outer contour of the assembled precast component. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic structural diagram of a detection device for the flatness of the outer contour of an assembled precast bridge and culvert component proposed by the present invention;

[0023] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0024] Figure 3 is Figure 1 a schematic structural diagram of the marking component in ;

[0025] Figure 4 is Figure 3 a schematic structural diagram from another perspective;

[0026] Figure 5 is Figure 4 an enlarged schematic structural diagram of part A in ;

[0027] Figure 6 is a schematic structural diagram inside the rectangular box;

[0028] Figure 7 is Figure 6 a cross-sectional view of ;

[0029] Figure 8 is Figure 6 a schematic structural diagram of the internal components inside the rectangular box in.

[0030] In the figure: 1 horizontal plate, 2 slide rail, 3 rack, 4 slider, 5 mounting plate, 6 double-shaft motor, 7 first gear, 8 transmission component, 9 fixed box, 10 mounting block, 11 laser sensor, 12 vertical rod, 13 transmission rod, 14 second gear, 15 rectangular box, 16 pneumatic rod, 17 moving block, 18 counting sensor, 19 contact block, 20 conductive block, 21 elastic cord, 22 cylindrical sponge, 23 support block, 24 inclined block, 25 reciprocating box, 26 first spring, 27 cam, 28 T-shaped block, 29 first electromagnet, 30 second spring, 31 rectangular block, 32 first magnetic block, 33 second magnetic block, 34 second electromagnet, 35 telescopic rod, 36 third spring, 37 pulling block, 38 triangular block, 39 rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] Refer to Figures 1-8, an inspection device for the flatness of the outer contour of assembled precast bridge and culvert components (after a stage of construction of assembled precast component buildings, it is necessary to inspect the flatness of the outer contour of precast components to ensure that there is no "offset" phenomenon at the connection nodes of the upper and lower walls after pouring and filling concrete in the cavity and node parts, that is, the present invention is mainly used to measure the offset amount between the upper and lower walls), including a horizontal plate 1. The horizontal plate 1 serves as the basic load-bearing component of the entire device, providing a platform for the installation and operation of other components. During inspection, it is necessary to ensure that the front side of the horizontal plate 1 is flush with the front side of the upper wall. A detection component is provided on the horizontal plate 1. The detection component includes a slide rail 2 provided at the upper end of the horizontal plate 1. The slide rail 2 provides guidance for the movement of the slider 4 to ensure its smooth sliding along a specific direction. A slider 4 is slidably connected to the slide rail 2. An installation plate 5 is installed at the rear side of the slider 4. A dual-axis motor 6 is installed at the upper end of the installation plate 5. The lower output shaft of the dual-axis motor 6 passes through the installation plate 5 and is fixedly connected to a first gear 7. Two vertical plates are fixedly connected to the upper end of the horizontal plate 1. A rack 3 is fixedly connected to the adjacent sides of the two vertical plates. The rack 3 meshes with the first gear 7. The rack 3 meshes with the first gear 7 to realize the movement of the slider 4. An installation block 10 is fixedly connected to the front side of the slider 4. A laser sensor 11 is installed on the front side of the installation block 10. The laser sensor 11 is used to detect the offset amount of the outer contour of the assembled precast component to judge the flatness. A controller is arranged inside the horizontal plate 1. When the laser sensor 11 detects unevenness, it will generate an electrical signal and transmit it to the controller. The controller controls the dual-axis motor 6 to stop running for a period of time and controls the pneumatic rod 16 to be in a stretched state for a period of time (a PLC program is set in the controller. During the period when the dual-axis motor 6 stops running, the PLC program will control the pneumatic rod 16 to be in a stretched state). A marking component is provided on the front side of the horizontal plate 1; the marking component includes a rectangular box 15 provided on the front side of the horizontal plate 1. A second electromagnet 34 is embedded in the front inner wall of the rectangular box 15. Two telescopic rods 35 are fixedly connected to the rear side of the second electromagnet 34. The telescopic ends of the two telescopic rods 35 are fixedly connected to a pulling block 37. The adjacent side of the pulling block 37 and the second electromagnet 34 is elastically connected by a third spring 36. A square block is fixedly connected to the front side of the pulling block 37. A rotating shaft 39 is rotatably connected through the square block by a damping bearing, so that after the two inclined blocks 24 rotate away from each other, they are not easily rotated relative to each other. Connecting blocks are fixedly connected to both the upper and lower sides of the rotating shaft 39. Inclined blocks 24 are fixedly connected to both connecting blocks. An elastic cord 21 is fixedly connected to the inner top and inner bottom of the rectangular box 15. The elastic cord 21 has a certain water absorption capacity. Pigment is adsorbed in the elastic cord 21. Triangular blocks 38 are fixedly connected to the left and right inner walls of the rectangular box 15. The rear sides of the two triangular blocks 38 are inclined surfaces, so that when the two inclined blocks 24 move forward, the two inclined blocks 24 will rotate away from each other.

[0033] Among them, a pushing component is provided on the front side of the horizontal plate 1, and the pushing component includes a fixed box 9 arranged on the front side of the slider 4. A pneumatic rod 16 is fixedly connected to the left inner wall of the fixed box 9, and an air source is provided outside. The air inlet end of the pneumatic rod 16 is connected to the air source, so as to control the stretching and contraction of the pneumatic rod 16. The telescopic end of the pneumatic rod 16 is fixedly connected to a moving block 17, and the right side of the moving block 17 is fixedly connected to an L-shaped block, and the lower end of the L-shaped block is fixedly connected to the upper end of the rectangular box 15.

[0034] Among them, the opposite sides of the two inclined blocks 24 are fixedly connected with the first magnetic blocks 32, and the inner walls on the left and right sides of the rectangular box 15 are fixedly connected with the second magnetic blocks 33. The two first magnetic blocks 32 and the adjacent sides of the corresponding second magnetic blocks 33 repel each other with the same polarity. Therefore, after the two inclined blocks 24 are reset, under the repulsive force of the first magnetic block 32 and the second magnetic block 33, the two inclined blocks 24 rotate relative to each other, which is convenient for pulling the elastic rope 21 to the front side again later.

[0035] The inner top of the rectangular box 15 is fixedly connected with a cylindrical sponge 22, which is used to absorb red pigment and provide the elastic rope 21 with a pigment source required for marking. The cylindrical sponge 22 is adsorbed with red pigment. The right inner wall of the rectangular box 15 is fixedly connected with a support block 23. The left inner wall of the rectangular box 15 is provided with an extrusion component. The function of the extrusion component is to squeeze the cylindrical sponge 22 so that the pigment is squeezed out and adsorbed onto the elastic rope 21 to ensure clear marking. The extrusion component includes a support block 23 fixedly connected to the left inner wall of the rectangular box 15. A reciprocating box 25 is mounted on the wall, and a T-block 28 is slidably connected inside the reciprocating box 25. An extrusion block is provided on the left side of the T-block 28. The extrusion block is in direct contact with the cylindrical sponge 22, and the pigment is squeezed out of the cylindrical sponge 22 through the extrusion action. The T-block 28 is elastically connected to the left inner wall of the rectangular box 15 through a first spring 26. A transmission rod 13 is vertically provided inside the rectangular box 15, and a cam 27 is provided on the transmission rod 13. During the rotation of the cam 27, its contour interacts with the T-block 28 to push the T-block 28 to move left and right.

[0036] Among them, the upper end of the transmission rod 13 extends to the outside, the upper end of the fixed box 9 is rotatably connected to the vertical rod 12, and the second gear 14 is provided on the vertical rod 12 and the transmission rod 13. The upper end output shaft of the dual-axis motor 6 is connected to the vertical rod 12 through the transmission assembly 8. The transmission assembly 8 includes a sprocket arranged on the output shaft of the dual-axis motor 6 on the vertical rod 12, and the two sprockets are connected through chain transmission.

[0037] Among them, a conductive block 20 is fixedly connected to the inner top of the fixed box 9, a power supply is provided in the horizontal plate 1, and two contacts are provided on the right side of the moving block 17. The power supply, the two contacts, the conductive block 20 and the second electromagnet 34 form a loop through wires. This loop ensures that the second electromagnet 34 is powered on or off at the appropriate time to realize the control of the action of the marking component.

[0038] Among them, an adjustment groove is provided on the right side of the T-shaped block 28. The inner wall on the left side of the adjustment groove is provided with a first electromagnet 29. A rectangular block 31 is slidably connected in the T-shaped block 28. The rectangular block 31 is made of a magnetic material. After the first electromagnet 29 is energized, it generates a repulsive force on the rectangular block 31. By changing the magnitude of the repulsive force on the rectangular block 31, the first electromagnet 29 adjusts the contact degree between the extrusion block and the cylindrical sponge 22. The adjacent side of the rectangular block 31 and the first electromagnet 29 is elastically connected by a second spring 30. The right side of the rectangular block 31 is fixedly connected to the extrusion block. A counting sensor 18 is fixedly connected to the inner top of the fixed box 9. The counting sensor 18 is used to record the marking times and provide signals for the controller. A touch block 19 is fixedly connected to the left side of the moving block 17. The touch block 19 contacts the counting sensor 18, triggering the counting sensor 18 to generate an electrical signal. After each counting, the controller will control the current passing through the first electromagnet 29 to increase, thereby increasing the extrusion amount on the cylindrical sponge 22. Thus, during the rotation of the cam 27, only the first extrusion of the same degree each time will cause the pigment in the cylindrical sponge 22 to be extruded. Moreover, the elastic coefficient of the second spring 30 is relatively large. Thus, when the T-shaped block 28 moves to the right, it will squeeze the cylindrical sponge 22 without causing the second spring 30 to be compressed.

[0039] The functional principle of the present invention can be described through the following operation mode: During detection, the dual-axis motor 6 is started. The lower output shaft thereof drives the first gear 7 to rotate. Since the first gear 7 meshes with the rack 3, and the rack 3 is fixed between two vertical plates, and the vertical plates are fixed on the horizontal plate 1, under the transmission of the first gear 7 and the rack 3, the slider 4 slides smoothly on the horizontal plate 1 along the slide rail 2. The mounting block 10 fixedly connected to the front side of the slider 4 moves accordingly, and the laser sensor 11 mounted on the front side of the mounting block 10 moves synchronously, thereby detecting the outer contour of the installation of the prefabricated component, and precisely measuring the offset between the upper and lower walls through the laser sensor 11 to ensure the flatness of the subsequent wall.

[0040] When the laser sensor 11 detects an unqualified position, the pushing assembly starts to work for a period of time, and at the same time, the dual-axis motor 6 stops running for a period of time. The pneumatic rod 16 is installed on the left inner wall of the fixed box 9, and its telescopic end pushes the moving block 17 to move to the right. The L-shaped block connected to the right side of the moving block 17 drives the rectangular box 15 to move. During the rightward movement of the moving block 17, the two contacts on its right side contact the conductive block 20 on the inner top of the fixed box 9. At this time, a circuit composed of the power supply in the horizontal plate 1, the two contacts, the conductive block 20, and the second electromagnet 34 through the wire is turned on, and the second electromagnet 34 is energized to generate magnetism.

[0041] The second electromagnet 34 generates magnetism to attract the pulling block 37, pulling the pulling block 37 to move backward, and the third spring 36 is compressed. The square block connected to the front side of the pulling block 37 is rotatably connected to the rotating shaft 39 through a damping bearing, and the inclined blocks 24 on the connecting blocks on the upper and lower sides of the rotating shaft 39 move accordingly. Since the rear sides of the two inclined blocks 24 are in contact with each other, when the two inclined blocks 24 are pulled forward, the elastic cord 21 is pulled forward. During the process of the two inclined blocks 24 moving forward, the front sides of the two inclined blocks 24 will contact the two triangular blocks 38, causing the two inclined blocks 24 to rotate away from each other. The two inclined blocks 24 rotating away from each other makes the rear sides of the two inclined blocks 24 move away from each other, releasing the pull on the elastic cord 21. Under the action of the elastic force of the elastic cord 21 itself, the elastic cord 21 rebounds (the elastic cord 21 will not stop directly at the initial position and will gradually tend to stop during multiple forward and backward swings), so that the elastic cord 21 contacts the upper wall, and then adheres the paint to the wall for marking.

[0042] After marking for a period of time, the controller controls the pneumatic rod 16 to contract and reset, and then the moving block 17 drives the rectangular box 15 to move leftward and reset. The two contacts on the moving block 17 are separated from the conductive block 20. At this time, the second electromagnet 34 is powered off. After the second electromagnet 34 is powered off, under the elastic action of the third spring 36, the pulling block 37 drives the two inclined blocks 24 to reset, making the two first magnetic blocks 32 approach the second magnetic block 33. Under the repulsive force of the second magnetic block 33, the two inclined blocks 24 rotate relative to each other again, clamping the elastic cord 21 for subsequent marking. After the rectangular box 15 is reset, the dual-axis motor 6 runs again for detection.

[0043] In the initial state, the current passing through the first electromagnet 29 is small, so the repulsive force on the rectangular block 31 is small. And in the initial state, the two second gears 14 are in a meshed state. So when the dual-axis motor 6 runs, it will make the transmission rod 13 drive the cam 27 to rotate. At this time, the rotation of the cam 27 drives the T-shaped block 28 to move left and right. During this movement, the extrusion block does not contact the cylindrical sponge 22 and does not extrude the cylindrical sponge 22.

[0044] After each marking is completed and the rectangular box 15 is reset, at this time, the touch block 19 contacts the counting sensor 18, and then the counting sensor 18 generates an electrical signal and transmits it to the controller. The controller controls the current passing through the first electromagnet 29 to increase (each time the counting sensor 18 counts once, the current passing through the first electromagnet 29 increases once), so that the repulsive force on the rectangular block 31 increases, and then the extrusion block continuously approaches the cylindrical sponge 22, pressing out the pigment and then adsorbing it on the elastic cord 21 to ensure the clarity of the subsequent marking of the elastic cord 21.

[0045] It is worth mentioning that, when the cylindrical sponge 22 is deformed to the same extent, only the first extrusion will squeeze out the pigment, and subsequent squeezes of the same degree will not squeeze out the pigment. Therefore, after the first extrusion is completed, even if the biaxial motor 6 continues to operate and the extrusion block continues to squeeze the cylindrical sponge 22, no additional pigment will be squeezed out, thus avoiding waste of the pigment.

[0046] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A device for detecting the flatness of the outer contour of an assembled prefabricated bridge and culvert component, comprising a horizontal plate (1), characterized in that: The horizontal plate (1) is provided with a detection component, and the detection component includes a slide rail (2) arranged at the upper end of the horizontal plate (1), a slider (4) is slidably connected to the slide rail (2), a mounting plate (5) is installed on the rear side of the slider (4), a dual-axis motor (6) is installed on the upper end of the mounting plate (5), the lower end output shaft of the dual-axis motor (6) passes through the mounting plate (5) and is fixedly connected to a first gear (7), the upper end of the horizontal plate (1) is fixedly connected to two vertical plates, the adjacent sides of the two vertical plates are commonly fixedly connected to a rack (3), the rack (3) and the first gear (7) are meshed with each other, the front side of the slider (4) is fixedly connected to a mounting block (10), the front side of the mounting block (10) is installed with a laser sensor (11), and the front side of the horizontal plate (1) is provided with a marking component.

2. The device for detecting the flatness of the outer contour of the assembled prefabricated bridge and culvert components according to claim 1 is characterized in that: The marking assembly comprises a rectangular box (15) arranged on the front side of the horizontal plate (1), a second electromagnet (34) is embedded in the front inner wall of the rectangular box (15), two telescopic rods (35) are fixedly connected to the rear side of the second electromagnet (34), the telescopic ends of the two telescopic rods (35) are commonly fixedly connected to a pulling block (37), the pulling block (37) is elastically connected to the adjacent side of the second electromagnet (34) through a third spring (36), the front side of the pulling block (37) is fixedly connected to a square block, a rotating shaft (39) is rotatably connected to the square block through a damping bearing, the upper and lower sides of the rotating shaft (39) are fixedly connected to connecting blocks, and the two connecting blocks are fixedly connected to inclined blocks (24), the inner top and inner bottom of the rectangular box (15) are commonly fixedly connected to an elastic rope (21), and the left and right inner walls of the rectangular box (15) are fixedly connected to triangular blocks (38).

3. The device for detecting the flatness of the outer contour of the assembled prefabricated bridge and culvert components according to claim 1 is characterized in that: A pushing assembly is provided on the front side of the horizontal plate (1), and the pushing assembly comprises a fixed box (9) arranged on the front side of the slider (4); a pneumatic rod (16) is fixedly connected to the left inner wall of the fixed box (9); a moving block (17) is fixedly connected to the telescopic end of the pneumatic rod (16); an L-shaped block is fixedly connected to the right side of the moving block (17); and the lower end of the L-shaped block is fixedly connected to the upper end of the rectangular box (15).

4. The device for detecting the flatness of the outer contour of the assembled prefabricated bridge and culvert components according to claim 3 is characterized in that: The opposite sides of the two inclined blocks (24) are fixedly connected with a first magnetic block (32), the left and right inner walls of the rectangular box (15) are fixedly connected with a second magnetic block (33), and the adjacent sides of the two first magnetic blocks (32) and the corresponding second magnetic blocks (33) repel each other in the same manner.

5. The device for detecting the flatness of the outer contour of the assembled prefabricated bridge and culvert components according to claim 3 is characterized by: A cylindrical sponge (22) is fixedly connected to the inner top of the rectangular box (15), and red pigment is adsorbed in the cylindrical sponge (22). A support block (23) is fixedly connected to the right inner wall of the rectangular box (15), and an extrusion component is provided on the left inner wall of the rectangular box (15).

6. The device for detecting the flatness of the outer contour of the assembled prefabricated bridge and culvert components according to claim 5 is characterized in that: The extrusion assembly comprises a reciprocating box (25) fixedly connected to the left inner wall of the rectangular box (15), a T-shaped block (28) slidably connected inside the reciprocating box (25), an extrusion block is arranged on the left side of the T-shaped block (28), the T-shaped block (28) and the left inner wall of the rectangular box (15) are elastically connected via a first spring (26), a transmission rod (13) is vertically arranged inside the rectangular box (15), and a cam (27) is arranged on the transmission rod (13).

7. The device for detecting the flatness of the outer contour of the assembled prefabricated bridge and culvert components according to claim 6 is characterized by: The upper end of the transmission rod (13) extends to the outside, the upper end of the fixed box (9) is rotatably connected to a vertical rod (12), the vertical rod (12) and the transmission rod (13) are both provided with a second gear (14), and the upper end output shaft of the dual-axis motor (6) is transmission-connected to the vertical rod (12) via a transmission assembly (8).

8. The device for detecting the flatness of the outer contour of the assembled prefabricated bridge and culvert components according to claim 3 is characterized by: A conductive block (20) is fixedly connected to the inner top of the fixed box (9), a power source is provided in the horizontal plate (1), two contacts are provided on the right side of the moving block (17), and the power source, the two contacts, the conductive block (20) and the second electromagnet (34) form a loop through a wire.

9. The device for detecting the flatness of the outer contour of the assembled prefabricated bridge and culvert components according to claim 6 is characterized by: An adjusting groove is provided on the right side of the T-shaped block (28), a first electromagnet (29) is provided on the inner wall on the left side of the adjusting groove, a rectangular block (31) is slidably connected inside the T-shaped block (28), the rectangular block (31) is elastically connected to the adjacent side of the first electromagnet (29) via a second spring (30), the right side of the rectangular block (31) is fixedly connected to the extrusion block, the inner top of the fixed box (9) is fixedly connected to the counting sensor (18), and the left side of the moving block (17) is fixedly connected to the contact block (19).

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