Extra-large bridge construction displacement measuring device

Abstract

The invention relates to the technical field of bridge displacement measurement, in particular to an extra-large bridge construction displacement measuring device which comprises a bridge pier, a bridge is arranged on the top face of the bridge pier, a supporting structure is installed on the outer side of the bridge pier and comprises a fixing frame, and the fixing frame is arranged on the outer side of the bridge pier in a sleeving mode. A driving roller is installed on the inner side of the fixing frame, and the fixing frame is in threaded connection with a first bolt and a second bolt. According to the measuring device, the limiting disc at the upper end of the fixed column is arranged in the movable cavity in the bottom surface of the mounting plate, so that the fixed column is movably connected with the mounting plate, the resistance of the device to bridge displacement can be reduced, the limiting disc is located in the middle of the inner side of the movable cavity, and a distance exists between the edge of the limiting disc and the inner wall of the movable cavity; the limiting disc can move in any direction in the movable cavity, so that the displacement distance and direction of the bridge on the pier can be measured, and the detection accuracy and range can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge displacement measurement, in particular to a displacement measurement device for super-large bridge construction. Background Art

[0002] A bridge generally refers to a building erected on rivers, lakes, and seas to enable vehicles and pedestrians to pass. A bridge is generally composed of an upper structure and a lower structure. The upper structure, also known as the bridge span structure, is the main structure for crossing obstacles. The lower structure includes abutments, piers, and foundations. Prefabricated beam bridges are favored by engineers for their short construction period, guaranteed project quality, and high labor productivity. Piers are added at the connection between the two beams for support. When the piers support the beam slab, the beam slab may move due to long-term driving, and may even cause the beam slab to fall off from the piers. Therefore, it is necessary to detect the displacement of the bridge.

[0003] In this regard, China's patent application number: CN202311302449.9 discloses a bridge displacement detection device for bridge construction, which relates to the field of bridge displacement detection technology, including a bridge, a pier and a fixed frame. The upper surface of the fixed frame is fixedly connected to two symmetrically arranged fixing rods, and the fixed frame is fixedly connected to a limited position frame through the two fixing rods. A suction cup is arranged above the limited position frame, and a support plate 1 is fixedly connected to the surface of the fixing rod. A suction fan is arranged on the upper surface of the support plate 1, and an air suction pipe is fixedly connected between the suction fan and the suction cup; a detection component for detecting the displacement of the bridge in the front and back, left and right, and vertical directions is also arranged above the fixed frame. The bridge displacement detection device for bridge construction can detect the displacement of the bridge in the front and back, left and right, and up and down directions of the bridge after the fixed frame and the pier are fixed through the connection and coordination of multiple structures. Compared with traditional displacement measuring devices such as displacement meters and dial indicators, the installation of the device is simpler and more convenient to use.

[0004] The device can detect the front, back, left, and right displacements of the bridge by setting two sets of pointers and two sets of scales. However, in real life, the displacement direction of the bridge cannot be controlled. Therefore, the bridge will displace in any direction in the horizontal plane relative to the piers. The method of only detecting the displacement of the bridge in the front, back, left, and right directions is relatively limited, and the directly connected structure also affects the displacement of the bridge in other directions, making the detection results even more inaccurate.

[0005] Therefore, in order to solve the above problems, a displacement measurement device for super-large bridge construction is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a displacement measuring device for construction of a super-large bridge, so as to solve the problem that the device in the prior art proposed in the above background technology can detect the front, rear, left, and right displacements of the bridge by setting two sets of pointers and two sets of scales, but in real life, the displacement direction of the bridge is uncontrollable, so the bridge will displace in any direction in the horizontal plane relative to the piers, and the method of only detecting the displacement of the front, rear, left, and right directions of the bridge is relatively limited, and the directly connected structure also affects the displacement of the bridge in other directions, making the detection result more inaccurate.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: A super-large bridge construction displacement measurement device, comprising: a bridge pier, the top surface of which is provided with a bridge;

[0008] A support structure is installed on the outer side of the pier, and the support structure includes a fixing frame, the fixing frame is sleeved on the outer side of the pier, a driving roller is installed on the inner side of the fixing frame, and a first bolt and a second bolt are threadedly connected to the fixing frame;

[0009] A mounting structure is mounted on the supporting structure;

[0010] A measuring structure is installed on the installation structure.

[0011] Preferably, the mounting structure includes a mounting frame, which is inserted into the top surface of the fixing frame, a fixing column is installed on the top surface of the mounting frame, a limiting plate is installed on the top surface of the fixing column, a mounting plate is installed on the upper side of the fixing column, a movable cavity is opened on the bottom surface of the mounting plate, and a suction cup assembly is installed on the top surface of the mounting plate.

[0012] Preferably, the measuring structure includes a connecting frame, which is fixedly connected to the middle part of the bottom surface of the mounting plate, a ball sleeve is movably installed on the inner side of the connecting frame, a connecting plate is installed on the surface of the fixed column, a ball block is movably installed on the inner side of the connecting plate, an upper rod and a lower rod are respectively fixedly connected to the upper and lower ends of the ball block, a spring is fixedly connected to the bottom surface of the lower rod, a mounting block is fixedly connected to the bottom end of the spring, a multi-color conical paint pen is installed inside the bottom end of the mounting block, and a hemispherical drawing board is fixedly installed on the top surface of the mounting frame.

[0013] Preferably, four groups of the fixing frames are provided, the four groups of the fixing frames are fitted in pairs and distributed in an up-and-down manner, the first bolts and the second bolts are used to fix the four groups of fixing frames on the outside of the pier, and the driving rollers are fitted with the edges of the pier.

[0014] Preferably, the mounting structure and the measuring structure are both located on the upper side of the driving roller, and the suction cup assembly is attracted to the bottom surface of the bridge.

[0015] Preferably, the limiting plate is located at the inner center of the movable cavity, and the inner diameter of the movable cavity is larger than the diameter of the limiting plate.

[0016] Preferably, the upper rod passes through the ball sleeve, the upper rod and the lower rod are vertically arranged, the bottom end of the multi-color conical paint pen is exposed inside the lower rod, the multi-color conical paint pen is combined with the hemispherical drawing board, and the total length of the lower rod and the exposed end of the multi-color conical paint pen is three times the length of the upper rod.

[0017] Preferably, the multi-color conical paint brush is in the shape of a cone, and has distinct color levels.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the measuring device of the present invention arranges the limit plate at the upper end of the fixed column inside the movable cavity on the bottom surface of the mounting plate, so that the fixed column and the mounting plate are movably connected, thereby reducing the resistance of the device to the displacement of the bridge, and the limit plate is located in the middle of the inner side of the movable cavity, and there is a distance between the edge of the limit plate and the inner wall of the movable cavity, so that the limit plate can be displaced in any direction in the movable cavity, thereby measuring the distance and direction of the displacement of the bridge on the pier, and improving the accuracy and range of detection.

[0019] A supporting structure, an installation structure and a measuring structure are provided, and four sets of fixing frames are all sleeved on the outside of the bridge pier, so that the four sets of fixing frames are spliced ​​in pairs, and the upper and lower pairs of fixing frames are distributed at 90 degrees, and the driving roller is in contact with the edge of the bridge pier, and then the two sets of first bolts spliced ​​together are fixed together by the first bolts, and the upper and lower pairs of fixing frames are fixed together by the second bolts, so that the four sets of fixing frames are all fixed on the outside of the bridge pier, and the driving roller is in close contact with the edge of the bridge pier;

[0020] Insert the mounting frame on the top surface of the fixing frame so that the mounting structure and the measuring structure are located on the upper side of the driving roller, start the driving roller, drive the roller to rotate, and drive the supporting structure, the mounting structure and the measuring structure to rise. When the top of the suction cup assembly is in contact with the bottom surface of the bridge, close the driving roller, and the supporting structure, the mounting structure and the measuring structure are fixed on the bridge pier. Start the suction cup assembly, and the suction cup assembly can be adsorbed on the bottom surface of the bridge.

[0021] At this time, the limit plate is located in the middle of the inner side of the movable cavity, the ball sleeve is set on the outer side of the upper rod and movably installed on the inner side of the connecting frame, the ball block is movably installed on the inner side of the connecting plate, and the upper rod and the lower rod are kept vertical, and the bottom end of the multi-color conical paint pen is in contact with the middle of the top surface of the hemispherical drawing board;

[0022] When the bridge is displaced, the bridge will be offset relative to the pier. At this time, the bridge will drive the mounting plate to move relative to the mounting frame through the suction cup assembly. The mounting plate moves on the upper end of the fixed column, so the upper end of the limit plate moves inside the movable cavity. Since the size of the movable cavity is larger than the size of the limit plate, the limit plate will not contact the inner wall of the movable cavity when it moves inside the movable cavity, so that the limit plate can move smoothly inside the movable cavity, and the bridge can be smoothly displaced on the pier, which can ensure the accuracy of the measurement of the measurement structure and facilitate corresponding maintenance measures according to the actual measurement results;

[0023] When the mounting plate moves, it will drive the connecting frame on the bottom to move. When the connecting frame moves, it will drive the upper rod to deflect around the ball block through the ball sleeve on the inside. Therefore, the deflection of the upper rod drives the deflection of the lower rod through the ball block, and the lower rod drives the multi-color conical paint pen at the bottom to move. The multi-color conical paint pen can paint on the inner wall of the top surface of the hemispherical drawing board to show the displacement direction and distance of the bridge.

[0024] Therefore, when the bridge makes displacement in any direction on the top surface of the pier, the mounting plate can move in any direction on the mounting frame, the limit plate can move in any direction in the movable cavity, and the mounting plate drives the upper rod, the ball block and the lower rod to deflect through the connecting frame. The sum of the exposed lengths of the lower rod and the multi-color conical paint pen is three times the length of the upper rod, so the moving distance of the lower rod end is three times the moving distance of the upper rod end, thereby magnifying the moving distance of the multi-color conical paint pen on the hemispherical drawing board, making it convenient for the staff to observe the trajectory of the painting, so as to measure the offset distance and direction of the bridge. At the same time, the color layers of the multi-color conical paint pen are distinct, and when painting, When drawing the track, the order of the painting tracks can be determined by observing the distribution of colors, thereby determining the displacement direction and order of the bridge piers. When the painting track is folded, since the multi-color conical paint pen is in the shape of a cone, the track painted first is wider and the track painted later is smaller. According to the actual situation, the track painted first is located in the lower layer and the track painted later is located in the upper layer, making it easier for the track located on the upper side with a smaller width to appear from the track located on the lower side with a larger width, so that it is convenient for the staff to observe the direction of the painting track, so as to measure the displacement direction, that is, the distance, of the bridge according to the painting track. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a bottom view schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a schematic top view of the supporting structure and the mounting structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structural explosion of the support structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure explosion of the fixing frame of the present invention;

[0029] Figure 5 It is a schematic front view of the structure of the installation structure and the measurement structure of the present invention;

[0030] Figure 6 It is a schematic diagram of the structural explosion of the installation structure of the present invention;

[0031] Figure 7 It is a front cross-sectional schematic diagram of the structure of the fixing column and the suction cup assembly of the present invention;

[0032] Figure 8 It is a schematic top view of the structure of the connecting frame and the hemispherical drawing board of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structural explosion of the measuring structure of the present invention;

[0034] Fig.10 It is a schematic diagram of a front cross-section of the structure of the measuring structure of the present invention;

[0035] Fig.11 This is a schematic diagram of the structure of the multi-color cone-shaped paint pen of the present invention;

[0036] Fig.12 The figure is a schematic diagram of the smearing track and size of the multi-color cone paint pen of the present invention.

[0037] In the figure: 1. pier; 11. bridge; 2. supporting structure; 21. fixing frame; 22. driving roller; 23. first bolt; 24. second bolt; 3. mounting structure; 31. mounting frame; 32. fixing column; 33. limiting plate; 34. mounting plate; 35. movable cavity; 36. suction cup assembly; 4. measuring structure; 41. connecting frame; 42. ball sleeve; 43. connecting plate; 44. ball block; 45. upper rod; 46. lower rod; 47. spring; 48. mounting block; 49. multi-color conical paint pen; 410. hemispherical drawing board. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the 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 creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 12 , an embodiment provided by the present invention:

[0040] The bridge pier 1, bridge 11, driving roller 22 and suction cup assembly 36 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here.

[0041] A displacement measuring device for construction of a super-large bridge, comprising: a pier 1, a bridge 11 is arranged on the top surface of the pier 1;

[0042] A support structure 2 is installed on the outer side of the pier 1. The support structure 2 includes a fixing frame 21. The fixing frame 21 is sleeved on the outer side of the pier 1. A driving roller 22 is installed on the inner side of the fixing frame 21. A first bolt 23 and a second bolt 24 are threadedly connected to the fixing frame 21.

[0043] A mounting structure 3 is mounted on the supporting structure 2;

[0044] A measuring structure 4 is installed on the mounting structure 3. By setting the limit plate 33 at the upper end of the fixed column 32 inside the movable cavity 35 on the bottom surface of the mounting plate 34, the fixed column 32 and the mounting plate 34 are movably connected, which can reduce the resistance of the device to the displacement of the bridge 11. The limit plate 33 is located in the middle of the inner side of the movable cavity 35, and there is a distance between the edge of the limit plate 33 and the inner wall of the movable cavity 35. The limit plate 33 can be displaced in any direction in the movable cavity 35. In this way, the distance and direction of the displacement of the bridge 11 on the pier 1 can be measured, which can improve the accuracy and range of detection.

[0045] Furthermore, the mounting structure 3 includes a mounting frame 31, which is inserted into the top surface of the fixing frame 21, a fixing column 32 is installed on the top surface of the mounting frame 31, a limiting plate 33 is installed on the top surface of the fixing column 32, a mounting plate 34 is installed on the upper side of the fixing column 32, a movable cavity 35 is opened on the bottom surface of the mounting plate 34, and a suction cup assembly 36 is installed on the top surface of the mounting plate 34. The mounting structure 3 provides a position for the installation of the measuring structure 4, and the mounting plate 34 can move on the mounting frame 31 installed on the bridge 11 following the displacement of the pier 1, so as to facilitate the expression of the displacement direction and distance through the measuring structure 4.

[0046] Furthermore, the measuring structure 4 includes a connecting frame 41, which is fixedly connected to the middle part of the bottom surface of the mounting plate 34, a ball sleeve 42 is movably installed on the inner side of the connecting frame 41, a connecting plate 43 is installed on the surface of the fixed column 32, a ball block 44 is movably installed on the inner side of the connecting plate 43, an upper rod 45 and a lower rod 46 are fixedly connected to the upper and lower ends of the ball block 44 respectively, a spring 47 is fixedly connected to the bottom surface of the lower rod 46, a mounting block 48 is fixedly connected to the bottom end of the spring 47, a multi-color conical paint pen 49 is fixedly installed on the bottom end of the mounting block 48, a hemispherical drawing board 410 is fixedly installed on the top surface of the mounting frame 31, and the measuring structure 4 can operate following the positional relationship between the mounting plate 34 and the mounting frame 31, and can show the direction and distance of the displacement of the pier 1 on the bridge 11 in cooperation with the multi-color conical paint pen 49 and the hemispherical drawing board 410, so that the staff can take timely measures according to the results.

[0047] Furthermore, four groups of fixing frames 21 are provided, and the four groups of fixing frames 21 are fitted in pairs and distributed in an upper and lower manner. The first bolts 23 and the second bolts 24 are used to fix the four groups of fixing frames 21 on the outside of the pier 1. The driving rollers 22 are fitted with the edges of the pier 1, and the driving rollers 22 provide power for the movement of the fixing frames 21 on the pier 1.

[0048] Furthermore, the mounting structure 3 and the measuring structure 4 are both located on the upper side of the driving roller 22, and the suction cup assembly 36 is attracted to the bottom surface of the bridge 11. When the mounting plate 34 follows the displacement of the bridge 11 on the mounting frame 31 installed on the pier 1, the limit plate 33 can move in the movable cavity 35 without sticking to the inner wall of the movable cavity 35, thereby ensuring smooth displacement of the bridge 11.

[0049] Furthermore, the limit plate 33 is located at the inner center of the movable cavity 35. The inner diameter of the movable cavity 35 is larger than the diameter of the limit plate 33. The limit plate 33 can move in the movable cavity 35 and will not fit the inner wall of the movable cavity 35. This can ensure smooth displacement of the bridge 11 and avoid jamming between the limit plate 33 and the movable cavity 35, which would hinder the displacement of the bridge 11 and affect the accuracy of the measurement results.

[0050] Furthermore, the upper rod 45 passes through the ball sleeve 42, and the upper rod 45 and the lower rod 46 are vertically arranged. The bottom end of the multi-color conical paint pen 49 is exposed to the interior of the lower rod 46. The multi-color conical paint pen 49 is combined with the hemispherical drawing board 410. The sum of the lengths of the exposed ends of the lower rod 46 and the multi-color conical paint pen 49 is three times the length of the upper rod 45. The upper rod 45 can be telescopically movable in the ball sleeve 42. The multi-color conical paint pen 49 can be used to draw a trajectory reflecting the displacement of the pier 1 on the hemispherical drawing board 410, and the trajectory is enlarged relative to the movement of the pier 1, so that the staff can observe the trajectory conveniently.

[0051] Furthermore, the multi-color conical paint pen 49 is in the shape of a cone, and the colors are clearly layered. The trajectory of the multi-color conical paint pen 49 will have differences in size and color depending on the sequence, which makes it convenient for staff to sort out the trajectory.

[0052] Working principle: During assembly, all four sets of fixing frames 21 are sleeved on the outside of the pier 1, so that the four sets of fixing frames 21 are spliced ​​in pairs, and the upper and lower pairs of fixing frames 21 are distributed at 90 degrees, and the driving roller 22 is in contact with the edge of the pier 1, and then the two sets of first bolts 23 spliced ​​together are fixed together by the first bolts 23, and the upper and lower pairs of fixing frames 21 are fixed together by the second bolts 24, so that the four sets of fixing frames 21 are all fixed on the outside of the pier 1, and the driving roller 22 is in close contact with the edge of the pier 1;

[0053] The mounting frame 31 is inserted into the top surface of the fixing frame 21, so that the mounting structure 3 and the measuring structure 4 are located on the upper side of the driving roller 22, and the driving roller 22 is started, and the driving roller 22 rotates, driving the supporting structure 2, the mounting structure 3 and the measuring structure 4 to rise. When the top of the suction cup assembly 36 is in contact with the bottom surface of the bridge 11, the driving roller 22 is closed, and the supporting structure 2, the mounting structure 3 and the measuring structure 4 are fixed on the pier 1, and the suction cup assembly 36 is started, and the suction cup assembly 36 can be adsorbed on the bottom surface of the bridge 11;

[0054] At this time, the limit plate 33 is located in the middle of the inner side of the movable cavity 35, the ball sleeve 42 is sleeved on the outer side of the upper rod 45 and movably installed on the inner side of the connecting frame 41, the ball block 44 is movably installed on the inner side of the connecting plate 43, and the upper rod 45 and the lower rod 46 are kept vertical, and the bottom end of the multi-color conical paint pen 49 is in contact with the middle of the top surface of the hemispherical drawing board 410;

[0055] When the bridge 11 is displaced, the bridge 11 will be offset relative to the pier 1. At this time, the bridge 11 will drive the mounting plate 34 to move relative to the mounting frame 31 through the suction cup assembly 36. The mounting plate 34 moves on the upper end of the fixing column 32, so the upper end of the limiting plate 33 moves inside the movable cavity 35. Since the size of the movable cavity 35 is larger than the size of the limiting plate 33, when the limiting plate 33 moves inside the movable cavity 35, it will not contact the inner wall of the movable cavity 35, so that the limiting plate 33 can move smoothly inside the movable cavity 35, and the bridge 11 can be smoothly displaced on the pier 1, which can ensure the accuracy of the measurement of the measuring structure 4 and facilitate corresponding maintenance measures according to the actual measurement results;

[0056] When the mounting plate 34 moves, it drives the connecting frame 41 on the bottom to move. When the connecting frame 41 moves, it drives the upper rod 45 to deflect around the ball block 44 through the inner ball sleeve 42. Therefore, the deflection of the upper rod 45 drives the lower rod 46 to deflect through the ball block 44. The lower rod 46 drives the multi-color conical paint pen 49 at the bottom to move. The multi-color conical paint pen 49 can paint on the inner wall of the top surface of the hemispherical drawing board 410, which can show the displacement direction and distance of the bridge 11.

[0057] Therefore, when the bridge 11 is displaced in any direction on the top surface of the pier 1, the mounting plate 34 can be moved in any direction on the mounting frame 31, and the limit plate 33 can be displaced in any direction in the movable cavity 35. The mounting plate 34 drives the upper rod 45, the ball block 44 and the lower rod 46 to deflect through the connecting frame 41, and the sum of the exposed lengths of the lower rod 46 and the multi-color conical paint pen 49 is three times the length of the upper rod 45, so the moving distance of the end of the lower rod 46 is three times the moving distance of the end of the upper rod 45, thereby magnifying the moving distance of the multi-color conical paint pen 49 on the hemispherical drawing board 410, making it convenient for the staff to observe the trajectory of the painting, so as to measure the offset distance and direction of the bridge 11, and at the same time The color of the color cone paint pen 49 is clearly layered. When painting the track, the order of the painting tracks can be determined by observing the distribution of colors, thereby determining the displacement direction and order of the bridge pier 1. When the painting track is folded, since the multi-color cone paint pen 49 is in the shape of a cone, the track painted first is wider and the track painted later is narrower. According to the actual situation, the track painted first is located in the lower layer and the track painted later is located in the upper layer, making it easier for the track on the upper side with a smaller width to appear from the track on the lower side with a larger width, thereby making it convenient for the staff to observe the direction of the painting track so as to measure the displacement direction, that is, the distance, of the bridge 11 according to the painting track.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A displacement measurement device for super-large bridge construction, comprising: A bridge pier (1), wherein a bridge (11) is arranged on the top surface of the bridge pier (1); Features: A support structure (2) is installed on the outer side of the pier (1), and the support structure (2) comprises a fixing frame (21), the fixing frame (21) is sleeved on the outer side of the pier (1), a driving roller (22) is installed on the inner side of the fixing frame (21), and a first bolt (23) and a second bolt (24) are threadedly connected to the fixing frame (21); A mounting structure (3) is mounted on the supporting structure (2); A measuring structure (4) is installed on the installation structure (3).

2. The device for measuring displacement during construction of a super-large bridge according to claim 1, characterized in that: The mounting structure (3) comprises a mounting frame (31), the mounting frame (31) being inserted into the top surface of the fixing frame (21), a fixing column (32) being mounted on the top surface of the mounting frame (31), a limiting plate (33) being mounted on the top surface of the fixing column (32), a mounting plate (34) being mounted on the upper side of the fixing column (32), a movable cavity (35) being provided on the bottom surface of the mounting plate (34), and a suction cup assembly (36) being mounted on the top surface of the mounting plate (34).

3. The device for measuring displacement during construction of a super-large bridge according to claim 2, characterized in that: The measuring structure (4) comprises a connecting frame (41), wherein the connecting frame (41) is fixedly connected to the middle part of the bottom surface of the mounting plate (34), a ball sleeve (42) is movably installed on the inner side of the connecting frame (41), a connecting plate (43) is installed on the surface of the fixing column (32), a ball block (44) is movably installed on the inner side of the connecting plate (43), an upper rod (45) and a lower rod (46) are respectively fixedly connected at the upper and lower ends of the ball block (44), a spring (47) is fixedly connected inside the bottom surface of the lower rod (46), a mounting block (48) is fixedly connected at the bottom end of the spring (47), a multi-color conical paint pen (49) is installed inside the bottom end of the mounting block (48), and a hemispherical drawing board (410) is fixedly installed on the top surface of the mounting frame (31).

4. The device for measuring displacement during construction of a super-large bridge according to claim 1, characterized in that: The fixing frames (21) are provided in four groups, and the four groups of fixing frames (21) are fitted in pairs and distributed in an up-and-down manner. The first bolts (23) and the second bolts (24) are used to fix the four groups of fixing frames (21) on the outside of the bridge pier (1), and the driving rollers (22) are fitted with the edges of the bridge pier (1).

5. The device for measuring displacement during construction of a super-large bridge according to claim 2, characterized in that: The mounting structure (3) and the measuring structure (4) are both located on the upper side of the driving roller (22), and the suction cup assembly (36) is sucked into the bottom surface of the bridge (11).

6. The device for measuring displacement during construction of a super-large bridge according to claim 2, characterized in that: The limiting plate (33) is located at the inner center of the active cavity (35), and the inner diameter of the active cavity (35) is greater than the diameter of the limiting plate (33).

7. The device for measuring displacement during construction of a super-large bridge according to claim 3, characterized in that: The upper rod (45) passes through the ball sleeve (42), the upper rod (45) and the lower rod (46) are vertically arranged, the bottom end of the multi-color conical paint pen (49) is exposed inside the lower rod (46), the multi-color conical paint pen (49) is combined with the hemispherical drawing board (410), and the total length of the exposed ends of the lower rod (46) and the multi-color conical paint pen (49) is three times the length of the upper rod (45).

8. The device for measuring displacement during construction of a super-large bridge according to claim 3, characterized in that: The multi-color cone-shaped paint brush (49) is in the shape of a cone, and has distinct color levels.

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