A settlement measuring device for bridge construction

Abstract

The present invention belongs to the technical field of bridge settlement measurement, and specifically relates to a settlement measurement device for bridge construction, comprising a bridge column, a base, a protective shell and a measuring mark; a cleaning mechanism, wherein the cleaning mechanism is arranged on the protective shell; a detection mechanism, wherein a plurality of the detection mechanisms are arranged in an annular distribution inside the protective shell; an annular slide rail, wherein the annular slide rail is fixedly mounted on the top surface of the base, a recording plate is arranged in an annular distribution inside the annular slide rail, and an arc-shaped gear ring is connected to the inner side of the recording plate; wherein the detection mechanism comprises a driving part, wherein the driving part is fixedly connected to the top surface of the base, a force-bearing part is arranged at the upper end of the driving part, a linkage part is arranged at the driving part, a lifting part is arranged at the linkage part, and a recording part is arranged on the lifting part. The present invention can detect the inclination of the bridge column and can also monitor its swing amplitude in real time, providing more comprehensive data support for bridge construction and maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge settlement measurement, and in particular relates to a settlement measuring device used in bridge construction. Background Art

[0002] Bridge settlement refers to the deformation and subsidence of a building or structure's foundation under load. Bridge settlement is a common manifestation of bridge failure and can include overall and localized subsidence, as well as lateral torsional deformation, seriously impacting the safety and service life of a bridge.

[0003] Therefore, timely and accurate measurement of bridge settlement is an important means to ensure the safety of bridge structures. Existing bridge settlement measuring devices mostly use mechanical structures (such as rollers, ratchets) combined with scales to achieve settlement and inclination measurement. For example, Chinese patent application number: CN202311408579.0 is a settlement measuring device for bridge construction. While measuring the settlement of bridge piers, the device can also measure the inclination angle of the bridge piers and retain the maximum inclination angle of the bridge piers, making it easier for subsequent staff to record the data.

[0004] Although the measuring device in the aforementioned comparative case can measure the inclination angle of the bridge and retain the maximum inclination angle of the bridge, it still has some shortcomings in actual use:

[0005] First, by only locking the maximum tilt angle through the ratchet mechanism, it is impossible to record the instantaneous swing amplitude of the bridge under dynamic loads (such as wind vibration and traffic flow);

[0006] Secondly, the above-mentioned device can protect the various components on the base by providing an isolation cover and a dome cover, preventing the components from being exposed to the outside and causing rust, thereby affecting the measurement results, and greatly improving the service life; however, in actual use, it is not convenient to directly view the structural details inside the isolation cover, which makes it impossible to intuitively check and evaluate the inclination angle at the detection point. Summary of the Invention

[0007] The purpose of the present invention is to provide a settlement measuring device for bridge construction, which can detect the inclination of bridge columns and monitor their swing amplitude in real time, providing more comprehensive data support for bridge construction and maintenance.

[0008] The technical solutions adopted by the present invention are as follows:

[0009] A settlement measuring device for bridge construction, comprising a bridge column and a base arranged outside the bridge column;

[0010] A protective shell is provided on the top surface of the base, and a measuring mark is fixedly connected to the protective shell, and the settlement of the bridge column is detected by the measuring mark;

[0011] A cleaning mechanism, the cleaning mechanism being provided on the protective shell and being used for cleaning the inner wall of the protective shell;

[0012] A detection mechanism, wherein a plurality of the detection mechanisms are arranged in a circular shape within the protective shell and are used to detect the inclination of the bridge column;

[0013] An annular slide rail, the annular slide rail is fixedly mounted on the top surface of the base, a recording plate is slidably connected in an annular arrangement within the annular slide rail, and an arc-shaped gear ring is fixedly connected to the inner side of the recording plate;

[0014] The detection mechanism includes a driving portion, the driving portion is fixedly connected to the top surface of the base, the upper end of the driving portion is provided with a force-bearing portion, the driving portion is provided with a linkage portion, the linkage portion is provided with a lifting portion, and the lifting portion is provided with a recording portion;

[0015] When the bridge column tilts, the force-bearing part will be squeezed, and then the force-bearing part will prompt the driving part to operate. The operation of the driving part will drive the lifting part and the recording part thereon to descend, and the tilt value will be recorded on the recording board through the recording part.

[0016] In a preferred embodiment, the protective shell consists of two semicircular shells, and the protective shell is made of a transparent material.

[0017] In a preferred embodiment, the cleaning mechanism includes a rotating rod, which is rotatably connected to the protective shell through a bearing, a wind wheel is fixedly installed on the upper end of the rotating rod, a driving gear is fixedly installed on the lower end of the rotating rod, a sliding block is rotatably connected inside the protective shell, the inner ring of the sliding block is fixedly connected to a gear ring, the top surface of the sliding block is fixedly connected to a scraper, and a torsion wheel is fixedly installed on the upper end of the rotating rod. In addition, the sliding block and the half gear ring are both designed with a symmetrical structure, and each is composed of two groups of semi-annular components with exactly the same geometric parameters.

[0018] In a preferred embodiment, the driving part includes a first support frame, the first support frame is fixedly connected to the top surface of the base, the upper end of the first support frame is rotatably connected to the first round rod through a bearing, a large gear is fixedly installed on the first round rod, both sides of the large gear are fixedly connected to a torsion spring, and the other end of the torsion spring is fixedly connected to the first support frame, the first support frame is also fixedly connected to a second support frame, the second support frame is rotatably connected to a small gear through a bearing, and one end of the first round rod is rotatably connected to the first bevel gear through a bearing.

[0019] In a preferred embodiment, the driving part further comprises a ratchet, which is fixedly mounted on the first round rod. A circular ring is fixedly connected to the first bevel gear. Paws are hingedly connected in a circular shape on the circular ring. A spring is fixedly connected between the pawl and the circular ring.

[0020] In a preferred embodiment, the force-bearing part includes a third support frame, the third support frame is fixedly connected to the first support frame, the upper end of the third support frame is rotatably connected to the second round rod through a bearing, the second round rod is rotatably connected to a shift rod through a bearing, the upper end of the shift rod is fixedly connected to the force-bearing rod, both ends of the first round rod are fixedly connected to a vertical rod, the upper end of the vertical rod is fixedly connected to the third round rod, and both ends of the third round rod are clamped on the lower end of the shift rod.

[0021] In a preferred embodiment, the linkage part includes a fourth round rod and a fifth round rod, and the fourth round rod and the fifth round rod are both rotatably connected to the top surface of the base through bearings. The second bevel gear and the first linkage gear are fixedly installed on the fourth round rod, and the second linkage gear and the third linkage gear are fixedly installed on the fifth round rod.

[0022] In a preferred embodiment, the lifting part includes a sliding rod, which is fixedly connected to the top surface of the base, a slider is slidably connected to the sliding rod, a rack is fixedly connected to the slider, and a compression spring is sleeved on the sliding rod.

[0023] In a preferred embodiment, the recording part includes a connecting rod, which is fixedly connected to the lower end of the rack, and the lower end of the connecting rod is fixedly connected to a ring, a recording pen is slidably connected inside the ring, and the upper end of the ring is slidably connected to a moving rod, and a tension spring is provided on the outer side of the moving rod, one end of the moving rod is fixedly connected to a baffle, and one end of the tension spring is fixedly connected to the ring, and the other end is fixedly connected to the baffle.

[0024] In a preferred embodiment, scale lines are provided on the outer surface of the bridge column.

[0025] The technical effects achieved by the present invention are:

[0026] The present invention breaks through the limitation that the traditional ratchet mechanism can only record the maximum tilt angle through the innovative design of the detection mechanism. The detection mechanism adopts a multi-stage mechanical transmission system. When the bridge column tilts, the force-bearing rod drives the large gear-small gear set through the lever principle to amplify the angle, and then forms a vertical line track proportional to the tilt amplitude on the recording board through the linkage of the rack and the recording pen; and drives the first bevel gear to rotate through the ratchet-pawl mechanism, and drives the arc-shaped gear ring through the multi-stage gear linkage, pushing the recording board to step along the annular slide rail to achieve multiple data recording. This design can not only retain the historical maximum tilt value, but also record the instantaneous swing amplitude caused by dynamic loads (such as wind vibration, vehicle passage) in real time. Scale lines are provided on the outer surface of the bridge column, which form a settlement observation system with the measuring mark on the protective shell. By regularly comparing the relative position changes of the measuring mark and the scale lines, the settlement of the bridge column can be intuitively judged;

[0027] This invention uses a protective case made of transparent material and is equipped with a cleaning mechanism to automatically remove dust and moisture deposited on the inner wall, ensuring a clean observation environment and improving the clarity of visual monitoring. In addition, the system also provides a manual control mode, allowing staff to perform cleaning operations on demand, greatly improving the convenience of equipment inspection and maintenance efficiency.

[0028] This invention uses a linkage mechanism to convert minute tilts of bridge columns into intuitive, visual graphical records, making data easier to read. This efficient design not only simplifies the settlement and tilt measurement process during bridge construction, but also improves the overall quality and safety of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0030] Figure 2 Schematic diagram of the structure inside the protective shell of the present invention;

[0031] Figure 3 It is a schematic diagram of the connection between the annular slide rail, the recording board and the base of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the detection mechanism of the present invention;

[0033] Figure 5 This invention Figure 4 Right view;

[0034] Figure 6 It is a disassembled schematic diagram of the detection mechanism of the present invention;

[0035] Figure 7 It is a partial structural diagram of the detection mechanism of the present invention;

[0036] Figure 8Schematic diagram of the connection between the first round rod and the first bevel gear of the present invention;

[0037] Figure 9 It is a structural schematic diagram of the lifting part and the recording part of the present invention;

[0038] Figure 10 This invention Figure 9 An enlarged schematic diagram of part A shown in FIG;

[0039] Figure 11 It is a schematic structural diagram of the protective shell of the present invention;

[0040] Figure 12 is a cross-sectional view of the protective shell of the present invention;

[0041] Figure 13 It is a schematic diagram of the internal structure of the protective shell of the present invention.

[0042] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0043] 1. Bridge column; 2. Base; 3. Protective shell; 4. Cleaning mechanism; 5. Measuring mark; 6. Detection mechanism; 7. Annular slide rail; 8. Recording board; 81. Arc gear ring;

[0044] 41. Rotating rod; 42. Wind wheel; 43. Driving gear; 44. Sliding block; 45. Ring gear; 46. Scraper; 47. Torsion wheel;

[0045] 61. Driving unit; 62. Force-bearing unit; 63. Linking unit; 64. Lifting unit; 65. Recording unit;

[0046] 611, first support frame; 612, first round rod; 613, large gear; 614, torsion spring; 615, second support frame; 616, small gear; 617, first bevel gear; 618, ratchet; 619, circular ring; 6110, pawl; 6111, spring;

[0047] 621, third support frame; 622, second round rod; 623, shift rod; 624, load-bearing rod; 625, vertical rod; 626, third round rod;

[0048] 631, fourth round rod; 632, second bevel gear; 633, first linkage gear; 634, fifth round rod; 635, second linkage gear; 636, third linkage gear;

[0049] 641, slide bar; 642, slider; 643, rack; 644, compression spring;

[0050] 651. Connecting rod; 652. Ring; 653. Recording pen; 654. Moving rod; 655. Tension spring; 656. Baffle. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0053] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0054] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0055] Please see the attached Figures 1 to 6 As shown, this embodiment provides a settlement measuring device for bridge construction, comprising a bridge column 1 and a base 2 arranged outside the bridge column 1, wherein the outer surface of the bridge column 1 is provided with scale lines;

[0056] The protective shell 3 is arranged on the top surface of the base 2, and a measuring mark 5 is fixedly connected to the protective shell 3. The settlement of the bridge column 1 is detected by the measuring mark 5. The protective shell 3 is composed of two semicircular shells and is made of a transparent material;

[0057] The cleaning mechanism 4 is provided on the protective shell 3 and is used to clean the inner wall of the protective shell 3;

[0058] Detection mechanisms 6, where a plurality of detection mechanisms 6 are arranged in a ring-shaped distribution within the protective shell 3, and are used to detect the inclination of the bridge column 1;

[0059] An annular slide rail 7 is fixedly mounted on the top surface of the base 2. A recording plate 8 is slidably connected to the annular slide rail 7 in an annular distribution. An arc-shaped gear ring 81 is fixedly connected to the inner side of the recording plate 8. Paper for recording is pasted on the recording plate 8.

[0060] The detection mechanism 6 includes a driving portion 61, which is fixedly connected to the top surface of the base 2. A force-bearing portion 62 is provided at the upper end of the driving portion 61, a linkage portion 63 is provided at the driving portion 61, a lifting portion 64 is provided at the linkage portion 63, and a recording portion 65 is provided on the lifting portion 64.

[0061] When the bridge column 1 tilts, the force-bearing part 62 will be squeezed, and then the force-bearing part 62 will prompt the driving part 61 to operate. The operation of the driving part 61 will drive the lifting part 64 and the recording part 65 thereon to descend, and the recording part 65 will draw a line on the recording plate 8 to record the tilt value.

[0062] In this embodiment, base 2 can be fixed to the pedestal connected to the lower end of bridge column 1 using pre-buried anchor bolts (the specific fixing method is not limited here). Leveling washers can also be provided on its bottom to ensure horizontal installation. Protective shell 3 consists of two semicircular shells, with waterproof sealing strips installed on the mating surfaces of the shells. It is attached to base 2 using high-strength bolts. A rubber sleeve is installed on the upper end of the semicircular shells, which tightly connects protective shell 3 to the outer surface of bridge column 1.

[0063] The outer surface of bridge column 1 is laser-scribed to form a set of longitudinal scale lines. The measuring mark 5 and the column scale lines form a coordinated observation system. By regularly recording the relative displacement data between the measuring mark 5 and the column scale lines, the settlement of bridge column 1 can be monitored.

[0064] Next, please refer to Figure 12 and Figure 13 The cleaning mechanism 4 includes a rotating rod 41, which is rotatably connected to the protective shell 3 through a bearing. A wind wheel 42 is fixedly installed on the upper end of the rotating rod 41, and a driving gear 43 is fixedly installed on the lower end of the rotating rod 41. A sliding block 44 is rotatably connected inside the protective shell 3, and the inner ring of the sliding block 44 is fixedly connected to a gear ring 45. The top surface of the sliding block 44 is fixedly connected to a scraper 46, and a torsion wheel 47 is fixedly installed on the upper end of the rotating rod 41. In addition, the sliding block 44 and the half gear ring 45 both adopt a symmetrical structural design, and each is composed of two groups of semi-annular components with exactly the same geometric parameters.

[0065] In this embodiment, wind forces drive the impeller 42 to rotate, transmitting power to the drive gear 43 via a coaxially connected rotating rod 41. Because the drive gear 43 meshes with the ring gear 45, its rotation simultaneously drives the ring gear 45 in circular motion. The ring gear 45, through a sliding block 44, forms a linkage with the scraper 46, causing the scraper 46 to rotate along the inner wall of the protective shell 3.

[0066] This design offers multiple practical benefits: During daily operation, it automatically removes dust deposited on the inner wall of the protective housing 3, maintaining a clean observation environment. In humid environments, it effectively scrapes away condensed mist on the inner wall, ensuring clear and unobstructed visual monitoring of the equipment status within the housing. The system also features a manual control mode, where rotating the external torque wheel 47 directly drives the scraper 46, enabling flexible, on-demand cleaning. This dual-drive mechanism not only improves equipment maintenance efficiency, but also ensures the accuracy of observation data and the convenience of equipment inspection.

[0067] Secondly, please also refer to Figures 4 to 8 The driving part 61 includes a first support frame 611, which is fixedly connected to the top surface of the base 2. The upper end of the first support frame 611 is rotatably connected to the first round rod 612 through a bearing. A large gear 613 is fixedly installed on the first round rod 612. Both sides of the large gear 613 are fixedly connected to a torsion spring 614, and the other end of the torsion spring 614 is fixedly connected to the first support frame 611. The first support frame 611 is also fixedly connected to a second support frame 615, and the second support frame 615 is rotatably connected to a small gear 616 through a bearing. One end of the first round rod 612 is rotatably connected to a first bevel gear 617 through a bearing. The driving part 61 also includes a ratchet 618, which is fixedly mounted on the first round rod 612, and a ring 619 is fixedly connected to the first bevel gear 617. The ring 619 is hinged with pawls 6110 in a ring-shaped distribution, and a spring 6111 is fixedly connected between the pawl 6110 and the ring 619.

[0068] Next, please refer to Figures 4 to 7 The force-bearing part 62 includes a third support frame 621, which is fixedly connected to the first support frame 611. The upper end of the third support frame 621 is rotatably connected to the second round rod 622 through a bearing. The second round rod 622 is rotatably connected to a shift rod 623 through a bearing. The upper end of the shift rod 623 is fixedly connected to the force-bearing rod 624. Both ends of the first round rod 612 are fixedly connected to a vertical rod 625. The upper end of the vertical rod 625 is fixedly connected to the third round rod 626, and both ends of the third round rod 626 are clamped on the lower end of the shift rod 623.

[0069] In this embodiment, when the bridge column 1 tilts in a certain direction, it contacts the load-bearing rod 624 in that direction, causing the load-bearing rod 624 to move. The movement of the load-bearing rod 624 drives the lever 623 to rotate about the second round rod 622, which in turn, leveraging the principle of leverage, causes the third round rod 626 to rotate about the first round rod 612. This movement is transmitted to the first round rod 612 via the vertical rod 625, causing it to rotate around its axis. The rotation of the first round rod 612, in turn, drives the large gear 613 to rotate. The large gear 613 meshes with the small gear 616, driving the small gear 616 to rotate.

[0070] Please refer again Figure 6 and Figure 7 The linkage part 63 includes a fourth round rod 631 and a fifth round rod 634. The fourth round rod 631 and the fifth round rod 634 are both rotatably connected to the top surface of the base 2 through bearings. The second bevel gear 632 and the first linkage gear 633 are fixedly installed on the fourth round rod 631, and the second linkage gear 635 and the third linkage gear 636 are fixedly installed on the fifth round rod 634.

[0071] Please refer again Figure 9 The lifting part 64 includes a slide rod 641, which is fixedly connected to the top surface of the base 2. A slider 642 is slidably connected to the slide rod 641, a rack 643 is fixedly connected to the slider 642, and a compression spring 644 is sleeved on the slide rod 641.

[0072] In this embodiment, the meshing transmission effect of the pinion 616 and the rack 643 enables the rack 643 to move downward. As the rack 643 descends, the recording unit 65 also moves downward and draws a vertical line on the paper pasted on the recording board 8 to record the inclination value of the bridge column 1. Specifically, when the inclination angle of the bridge column 1 is large, after the force-bearing rod 624 is interfered with, the rotation angle of the shifting rod 623 increases accordingly, thereby causing the rotation angle of the large gear 613 and the pinion 616 to also increase. This series of transmission effects increases the travel of the rack 643 to drive the recording unit 65 downward, thereby increasing the length of the vertical line drawn on the paper; conversely, if the inclination angle is small, the length of the vertical line drawn is shorter.

[0073] When the rack 643 is raised or lowered, the slider 642 fixed to it moves along the slide bar 641. The cooperation between the slider 642 and the slide bar 641 can play a role of limiting and guiding, ensuring the stability of the raising and lowering of the rack 643. In addition, when the slider 642 is lowered, it will compress the compression spring 644, and the reset force of the compression spring 644 can cause the slider 642 to return to its original position.

[0074] Please refer again Figure 9 and Figure 10The recording part 65 includes a connecting rod 651, which is fixedly connected to the lower end of the rack 643. The lower end of the connecting rod 651 is fixedly connected to a ring 652, and a recording pen 653 is slidably connected in the ring 652. The upper end of the ring 652 is slidably connected to a moving rod 654, and a tension spring 655 is sleeved on the outer side of the moving rod 654. One end of the moving rod 654 is fixedly connected to a baffle 656, and one end of the tension spring 655 is fixedly connected to the ring 652, and the other end is fixedly connected to the baffle 656. In addition, the recording pen 653 adopts a product currently available on the market. When selecting a model, it should be selected as much as possible to meet the requirements of this application under the premise of being suitable for the specifications and usage scenarios. The specific model specifications are not limited here.

[0075] In this embodiment, before use, the stylus 653 is installed in the collar 652. The specific steps are as follows: First, pull the baffle 656 to drive the fifth rod 634 to move and stretch the tension spring 655. Next, insert the stylus 653 into the collar 652. Then, release the baffle 656. At this point, the return force of the tension spring 655 returns the movable rod 654 and baffle 656 to their original position, pushing the stylus 653 to move, ensuring that the end of the stylus 653 is tightly attached to the paper attached to the recording plate 8.

[0076] When the rack 643 moves downward, it drives the connecting rod 651 to move downward, thereby prompting the recording pen 653 in the ring 652 to move downward, drawing lines on the paper of the recording board 8.

[0077] When the bridge column 1 is reset or tilted to another direction, the stress-bearing rod 624, which was originally under pressure, will no longer be squeezed, and the first round rod 612 will return to its original position under the reset force of the torsion spring 614, thereby causing the vertical rod 625, the third round rod 626, the shifting rod 623, and the stress-bearing rod 624 to reset. When the first round rod 612 rotates under the reset force of the torsion spring 614, it drives the first bevel gear 617 to rotate. This gear meshes with the second bevel gear 632, thereby rotating the fourth round rod 631. The rotation of the fourth round rod 631 will drive the first linkage gear 633 to rotate. The first linkage gear 633 and the second linkage gear 635 are driven by a toothed belt, causing the fifth round rod 634 to rotate. The rotation of the fifth round rod 634 will in turn rotate the third linkage gear 636, which meshes with the arc-shaped ring gear 81, thereby pushing the recording plate 8 to move a certain distance along the annular slide rail 7. The next time bridge column 1 tilts in this direction, a new vertical line is drawn, continuously recording the tilt value of bridge column 1 and monitoring its swing amplitude in real time. Simultaneously, the vertical line information drawn for each tilt is recorded, forming a set of tilt value data. By analyzing this data, the swing amplitude of bridge column 1 can be calculated, providing powerful data support for bridge construction and maintenance. Furthermore, this device has a simple structure and is easy to operate, significantly improving the efficiency and quality of bridge construction.

[0078] It should be noted that the first rod 612 and the first bevel gear 617 achieve one-way transmission via a pawl-ratchet mechanism: a ratchet 618 is fixed to the surface of the first rod 612, and a pawl 6110 and a spring 6111 are mounted on a ring 619 connected to the first bevel gear 617. When the force-bearing rod 624 pushes the first rod 612 to rotate, the ratchet 618 rotates synchronously. At this time, the pawl 6110, contacted by the teeth of the ratchet 618, compresses the spring 6111, keeping the first bevel gear 617 stationary. When the first rod 612, acted upon by the torsion spring 614, rotates in the reverse direction, the teeth of the ratchet 618 rigidly contact the pawl 6110, and the pawl 6110 pushes the ring 619 in a coordinated manner, thereby driving the first bevel gear 617 to rotate synchronously. This structure switches between the buffering / rigid resistance state between the tooth surface of the ratchet 618 and the spring 6111 of the pawl 6110, and ultimately realizes the motion characteristic that the first bevel gear 617 is driven in one direction only during the reset phase of the first round rod 612.

[0079] The lever 623 is rotatably connected to the second round rod 622, with the extended length ratio of the lever 623 at both ends of the second round rod 622 being 1:4. Based on the principle of leverage, when the upper end of the lever 623 is subjected to external pressure and rotates slightly, its lower end will generate a larger deflection motion, driving the large gear 613 to rotate. Because the diameter of the large gear 613 is significantly larger than the meshing small gear 616, the resulting transmission ratio further converts the rotation angle of the large gear 613 into a high-speed rotation of the small gear 616. This rotational motion is transmitted to the rack 643 through the small gear 616, forcing the rack 643 to produce an amplification effect by superimposing linear displacement. Ultimately, the stylus 653, linked to the rack 643, forms a significantly extended trajectory segment on the surface of the recording board 8. This double-stage mechanical amplification of the bridge's minute tilt angle is converted into an intuitive and visual graphical record.

[0080] The working principle of the present invention is:

[0081] The device is fixedly installed on the base at the lower end of the bridge column 1 through the base 2, and the overall level is ensured by using leveling gaskets. The outer surface of the bridge column 1 is provided with scale lines, which form a settlement observation system with the measuring mark 5 on the protective shell 3. By regularly comparing the relative position changes of the measuring mark 5 and the scale lines, the settlement of the bridge column 1 can be intuitively judged; at the same time, when the bridge column 1 tilts, the force-bearing rod 624 will be squeezed and drive the lever 623 to rotate. With the help of the lever principle and the gear transmission system, the tilt angle is magnified and converted into the length of the line drawn by the recording pen 653 on the recording board 8, thereby realizing the visual recording of the tilt value; during the reset process, the energy stored in the torsion spring 614 is converted into the rotation of the first round rod 612, and the first round rod 612 is driven by the ratchet-pawl mechanism. The bevel gear 617 rotates, and drives the arc gear ring 81 through a multi-stage gear linkage, pushing the recording plate 8 to step along the annular slide rail 7 to achieve multiple data recordings; to ensure the clarity of observation, the cleaning mechanism 4 drives the scraper 46 to rotate through the wind wheel 42 or the manual twist wheel 47 to automatically remove the dust and mist accumulated on the inner wall of the protective shell 3; in addition, after each recording is completed, the ratchet-pawl mechanism ensures that the driving part 61 only links the transmission component in the reset stage to push the recording plate 8 to move along the annular slide rail 7, so as to continuously record the inclination value, form a complete dynamic monitoring line, and realize real-time, accurate and sustainable monitoring of the settlement and inclination status of the bridge column 1.

[0082] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A settlement measuring device for bridge construction, characterized by: It includes a bridge column and a base arranged on the outer side of the bridge column; A protective shell is provided on the top surface of the base, and a measuring mark is fixedly connected to the protective shell, through which the settlement of the bridge column is detected; A cleaning mechanism is provided on the protective shell and is used to clean the inner wall of the protective shell; Detection mechanisms, wherein a plurality of detection mechanisms are arranged in a circular shape within the protective shell and are used to detect the inclination of the bridge columns; An annular slide rail is fixedly mounted on the top surface of the base. A recording plate is slidably connected to the annular slide rail. An arc-shaped gear ring is fixedly connected to the inner side of the recording plate. The detection mechanism includes a driving part, which is fixedly connected to the top surface of the base, a force-bearing part is provided at the upper end of the driving part, a linkage part is provided at the driving part, a lifting part is provided at the linkage part, and a recording part is provided on the lifting part; When the bridge column tilts, it will squeeze the load-bearing part, which will then cause the driving part to operate. The operation of the driving part will drive the lifting part and the recording part on it to descend, and the recording part will draw a line on the recording board to record the tilt value; The driving part includes a first support frame, which is fixedly connected to the top surface of the base, and the upper end of the first support frame is rotatably connected to the first round rod through a bearing, and a large gear is fixedly installed on the first round rod, and both sides of the large gear are fixedly connected to a torsion spring, and the other end of the torsion spring is fixedly connected to the first support frame, and the first support frame is also fixedly connected to the second support frame, and the second support frame is rotatably connected to the small gear through a bearing, and one end of the first round rod is rotatably connected to the first bevel gear through a bearing; The driving part also includes a ratchet, which is fixedly mounted on the first round rod. A circular ring is fixedly connected to the first bevel gear. Paws are hingedly connected to the circular ring in an annular shape. A spring is fixedly connected between the pawl and the circular ring. The force-bearing part includes a third support frame, the third support frame is fixedly connected to the first support frame, the upper end of the third support frame is rotatably connected to the second round rod through a bearing, the second round rod is rotatably connected to a shift rod through a bearing, the upper end of the shift rod is fixedly connected to the force-bearing rod, both ends of the first round rod are fixedly connected to a vertical rod, and the upper end of the vertical rod is fixedly connected to the third round rod; The linkage part includes a fourth round rod and a fifth round rod, which are both rotatably connected to the top surface of the base through bearings. The second bevel gear and the first linkage gear are fixedly installed on the fourth round rod, and the second linkage gear and the third linkage gear are fixedly installed on the fifth round rod.

2. A settlement measuring device for bridge construction according to claim 1, characterized in that: The protective shell consists of two semicircular shells and is made of transparent material.

3. The settlement measurement device for bridge construction according to claim 1, characterized in that: The cleaning mechanism includes a rotating rod, which is rotatably connected to the protective shell through a bearing, a wind wheel is fixedly installed on the upper end of the rotating rod, a driving gear is fixedly installed on the lower end of the rotating rod, a sliding block is rotatably connected inside the protective shell, the inner ring of the sliding block is fixedly connected to the gear ring, the top surface of the sliding block is fixedly connected to the scraper, and the upper end of the rotating rod is fixedly installed with a twist wheel.

4. The settlement measurement device for bridge construction according to claim 1, characterized in that: The lifting part comprises a sliding rod, which is fixedly connected to the top surface of the base, a sliding block is slidably connected to the sliding rod, a rack is fixedly connected to the sliding block, and a compression spring is sleeved on the sliding rod.

5. The settlement measurement device for bridge construction according to claim 4, characterized in that: The recording part includes a connecting rod, which is fixedly connected to the lower end of the rack. The lower end of the connecting rod is fixedly connected to a ring, and a recording pen is slidably connected inside the ring. The upper end of the ring is slidably connected to a moving rod, and a tension spring is provided on the outer side of the moving rod. One end of the moving rod is fixedly connected to a baffle, and one end of the tension spring is fixedly connected to the ring, and the other end is fixedly connected to the baffle.

6. The settlement measurement device for bridge construction according to claim 1, characterized in that: The outer surface of the bridge column is provided with scale lines.

Images