Settlement measuring device for bridge construction

Abstract

The invention discloses a settlement degree measuring device for bridge construction, relates to the field of bridge settlement measurement, and solves the problem that an existing bridge settlement degree measuring device is prone to causing accumulation of impurities such as rainwater, dust and silt inside the bridge settlement degree measuring device, the settlement degree measuring device comprises a device bottom ring and a bridge body arranged on the inner side of the device bottom ring, the top of the device bottom ring is fixedly provided with a protective shell, the top of the protective shell is fixedly provided with an annular top cover, and the inner side of the device bottom ring is provided with a plurality of centrosymmetric measuring rods; the sealing mechanism is used for sealing a gap between the annular top cover and the bridge body, and the sealing mechanism is mounted at the top of the annular top cover; by means of the sealing mechanism, sealing can be provided between the annular top cover and the bridge body, rainwater, silt impurities and the like are prevented from entering the protective shell and the device bottom ring, the accuracy of measuring the gradient of the bridge body by the measuring rod is guaranteed, and therefore the effects of sealing protection and measuring accuracy improvement are achieved.

Description

Technical Field

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

[0002] Bridge settlement refers to the sinking and deformation of the bridge structure during use due to factors such as its own load, traffic load and foundation soil subsidence. Settlement can cause deformation and damage to the bridge structure, seriously affecting the safety and life of the bridge. Therefore, timely and accurate measurement of bridge settlement is an important means to ensure the safety of the bridge structure.

[0003] The frequency of bridge settlement testing depends on the type and usage of the bridge, and must be carried out regularly to ensure that any abnormal settlement problems are discovered in time to ensure the safety and service life of the bridge. Existing Chinese public patent document: CN117308872A discloses a settlement measuring device for bridge construction. Through the swing of the roller and the L-shaped plate, the inclination angle of the bridge pier can be measured, and the maximum inclination angle of the bridge pier can be retained to facilitate subsequent staff to record the data. However, the outer side of the base is protected by an isolation cover and a dome cover. Since the dome cover is annular in structure and there is a gap between the inner side of the dome cover and the bridge pier, impurities such as rainwater, dust, and sand will fall onto the base through the gap between the dome cover and the bridge pier. With the accumulation of impurities such as rainwater, dust, and sand, it is easy to cause a large amount of accumulated water and impurity layers to accumulate above the base, which will hinder the swing of the L-shaped plate and reduce the accuracy of the settlement measurement. Summary of the invention

[0004] The purpose of the present invention is to provide a settlement measuring device for bridge construction, which can provide a seal between the annular top cover and the bridge body, prevent rainwater, silt and other impurities from entering the protective shell and the bottom ring of the device, and ensure the accuracy of the measuring rod in measuring the inclination of the bridge body.

[0005] To achieve the above object, the present invention provides the following technical solutions: A settlement measuring device for bridge construction comprises: a device bottom ring and a bridge body arranged on the inner side of the device bottom ring, a protective shell is fixedly installed on the top of the device bottom ring, an annular top cover is fixedly installed on the top of the protective shell, the inner diameter of the annular top cover is larger than the diameter of the bridge body, and a plurality of centrally symmetrical measuring rods are arranged on the inner side of the device bottom ring for measuring the inclination of the bridge body; further comprising: a sealing mechanism for sealing the gap between the annular top cover and the bridge body, the sealing mechanism being installed on the top of the annular top cover; a testing mechanism for allowing a plurality of the measuring rods to perform real-time settlement test on the bridge body, the testing mechanism being installed on the top of the device bottom ring; a leveling mechanism for aligning a plurality of the measuring rods with the bridge body synchronously, the leveling mechanism being installed on the top of the device bottom ring.

[0006] Preferably, the sealing mechanism includes a silicone sleeve arranged on the top of the annular top cover, the silicone sleeve is annularly sleeved on the outside of the bridge body, the silicone sleeve is attached to the outside of the bridge body, both ends of the silicone sleeve are fixedly installed with rings, the top of the annular top cover is fixedly installed with two T-shaped sleeve seats for limiting the two rings respectively, so as to facilitate the positioning of the silicone sleeve, the outer side of the silicone sleeve is an inclined structure, so as to facilitate the sliding of rainwater, the bottom of the silicone sleeve is fixedly installed with silicone ribs, the outer side of the silicone ribs is in contact with the inner side of the annular top cover, so as to facilitate the attachment of the silicone sleeve to the annular top cover, and both ends of the silicone sleeve are provided with glue coating seams for applying waterproof adhesive, so as to facilitate the silicone sleeve to be tightly sleeved on the bridge body and fixed on the annular top cover.

[0007] Preferably, the testing mechanism includes an annular frame fixedly mounted on the top of the bottom ring of the device, an annular water box fixedly mounted on the inner side of the annular frame, a contact ball fixedly mounted on the top of the measuring rod, the contact ball contacts the outer side of the bridge body, so that the measuring rod and the bridge body remain parallel, a mounting seat is rotatably mounted on the bottom end of the measuring rod, so that when the bridge body is tilted, the measuring rod can swing with the mounting seat as a fulcrum, the mounting seat is fixedly mounted on the top of the annular frame, a fixing plate is fixedly mounted on the side of the measuring rod away from the bridge body, an arc-shaped piston rod is fixedly mounted on the outer side of the fixing plate, and a There are multiple arc-shaped water injection cylinders respectively matched with multiple arc-shaped piston rods, and a water injection pipe is fixedly installed at the bottom end of the arc-shaped water injection cylinder, and the water injection pipe is fixedly installed on the inner side of the annular water box. When the measuring rod swings, it can drive the arc-shaped piston rod to move along the inner side of the arc-shaped water injection cylinder, and the water in the arc-shaped water injection cylinder can enter the annular water box through the water injection pipe. An arc-shaped spring is arranged on the outer side of the arc-shaped piston rod, and the arc-shaped spring is fixedly installed between the fixed plate and the arc-shaped water injection cylinder. A liquid level detector extending to the inside of the annular water box is fixedly installed on the top of the annular frame, and whether the bridge body is tilted is judged according to the liquid level height in the annular water box.

[0008] Preferably, the leveling mechanism includes a mounting plate arranged on the outside of the arc-shaped water injection cylinder, two plug rods symmetrically slidingly extending to the inside of the arc-shaped water injection cylinder are fixedly mounted on the outside of the mounting plate, an insert block is fixedly mounted between the two plug rods, a plurality of slots equidistantly distributed and matched with the insert block are provided on the outside of the arc-shaped piston rod, the top of the slot and the end of the insert block away from the plug rod are both inclined structures, so that when the arc-shaped piston rod moves, the slot on the arc-shaped piston rod can push the insert block to move, a positioning spring is arranged on the outside of the insert rod, the positioning spring is fixedly mounted between the inner side of the arc-shaped water injection cylinder and the insert block, and the insert block is moved by utilizing the rebound force of the positioning spring. The block is inserted into the slot of the arc-shaped piston rod to prevent the arc-shaped piston rod from rebounding, and two symmetrically distributed positioning plates are fixedly installed on the outer side of the mounting plate, and a sliding roller is rotatably installed between the two positioning plates, and a swivel is arranged between multiple mounting plates, and the swivel is located between the mounting plate and the sliding roller, and a push strip fixedly installed on the outer side of the swivel is arranged on the outer side of the sliding roller, and the distance between the swivel and the mounting plate is greater than the length of the insert block to prevent the mounting plate from contacting the swivel when moving, and the push strip can push the sliding roller to move, and a plurality of sliding cylinders with central symmetry are slidably sleeved on the outer side of the swivel, and a bracket is fixedly installed between the sliding cylinder and the bottom ring of the device to provide positioning for the swivel.

[0009] Preferably, two symmetrically distributed angle plates are fixedly mounted on the top of the mounting seat for observing and measuring the tilt angle.

[0010] Preferably, two indicator plates respectively matched with the two angle disks are fixedly mounted on the outer side of the measuring rod, so as to facilitate the quick acquisition of the inclination angle of the measuring rod.

[0011] Preferably, a limit block is fixedly installed on the top of the mounting seat, and the side of the measuring rod away from the fixed plate contacts the outer side of the limit block to ensure that the measuring rod is in a vertical state.

[0012] Preferably, a water supply pipe extending to above the annular frame is fixedly installed on the top of the annular water box, and a sealing plug is installed on the top of the water supply pipe for filling water into the annular water box.

[0013] Preferably, a control panel capable of alarming is fixedly mounted on the outer side of the liquid level detector to facilitate timely alarm prevention.

[0014] Preferably, the measuring rod is connected to the contact ball via a screw rod, which facilitates installation, disassembly and replacement.

[0015] The above embodiments of the present invention can achieve the following beneficial effects: The present invention can provide a seal between the annular top cover and the bridge body through a sealing mechanism, prevent rainwater, silt and other impurities from entering the protective shell and the bottom ring of the device, and ensure the accuracy of the measuring rod in measuring the inclination of the bridge body, thereby achieving the effect of sealing protection and improving measurement accuracy.

[0016] The present invention uses a testing mechanism to provide timely warning notification when the bridge body tilts too much at any angle, and uses a separate liquid level detector for real-time detection, thereby reducing the cost of bridge measurement and improving the efficiency of detection, thereby achieving the effect of timely warning.

[0017] The present invention uses a leveling mechanism to quickly keep multiple measuring rods parallel to the bridge body, thereby improving the installation efficiency of the device and the bridge body, and can prevent the measuring rods from rebounding, ensuring the maximum inclination angle of the bridge body for subsequent observation, thereby achieving the effect of rapid installation and easy observation and measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the protective shell and the measuring rod structure of the present invention; Figure 3 This is a schematic diagram of the structure of the silicone sleeve and the sleeve ring in the present invention; Figure 4 It is a schematic diagram of the structure of the annular frame and the annular water box in the present invention; Figure 5 It is a schematic diagram of the structure of the angle plate and the contact ball in the present invention; Figure 6 It is a schematic diagram of the structure of the arc-shaped water injection cylinder and the arc-shaped piston rod in the present invention; Figure 7 for Figure 2 Schematic diagram of the enlarged structure of the middle A area; Figure 8 for Figure 6 Schematic diagram of the enlarged structure of the middle B area; Fig. 9 It is a schematic diagram of the structure of the slide cylinder and the rotating ring in the present invention.

[0019] In the figure: 1. device bottom ring; 2. bridge body; 3. protective shell; 4. annular top cover; 5. measuring rod; 6. silicone sleeve; 7. collar; 8. T-shaped sleeve; 9. silicone rib; 10. annular frame; 11. annular water box; 12. contact ball; 13. mounting seat; 14. fixing plate; 15. arc piston rod; 16. arc water injection cylinder; 17. arc spring; 18. liquid level detector; 19. mounting plate; 20. plug rod; 21. plug block; 22. positioning spring; 23. positioning plate; 24. sliding roller; 25. swivel; 26. push strip; 27. sliding cylinder; 28. bracket; 29. ​​angle plate; 30. indicator plate; 31. limit block; 32. water supply pipe; 33. water injection pipe; 34. sealing plug; 35. control panel; 36. screw. DETAILED DESCRIPTION

[0020] 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 inspiration are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1 and Figure 3 The figure shows a settlement measuring device for bridge construction, comprising a device bottom ring 1 and a bridge body 2 arranged on the inner side of the device bottom ring 1, a protective shell 3 is fixedly installed on the top of the device bottom ring 1, an annular top cover 4 is fixedly installed on the top of the protective shell 3, the inner diameter of the annular top cover 4 is larger than the diameter of the bridge body 2, and a plurality of centrally symmetrical measuring rods 5 are arranged on the inner side of the device bottom ring 1 for measuring the inclination of the bridge body 2; it also includes: a sealing mechanism for sealing the gap between the annular top cover 4 and the bridge body 2, the sealing mechanism is installed on the top of the annular top cover 4; a testing mechanism for making the plurality of measuring rods 5 perform real-time settlement testing on the bridge body 2, the testing mechanism is installed on the top of the device bottom ring 1; a leveling mechanism for aligning the plurality of measuring rods 5 with the bridge body 2 synchronously, the leveling mechanism is installed on the top of the device bottom ring 1.

[0022] The sealing mechanism includes a silicone sleeve 6 arranged on the top of the annular top cover 4, the silicone sleeve 6 is annularly sleeved on the outside of the bridge body 2, the silicone sleeve 6 is attached to the outside of the bridge body 2, and collars 7 are fixedly installed at both ends of the silicone sleeve 6. Two T-shaped sleeve seats 8 for limiting sleeves of two collars 7 are fixedly installed on the top of the annular top cover 4, which is convenient for positioning the silicone sleeve 6. The outer side of the silicone sleeve 6 is an inclined structure, which is convenient for rainwater to slide off. Silicone ribs 9 are fixedly installed on the bottom of the silicone sleeve 6. The outer side of the silicone ribs 9 is in contact with the inner side of the annular top cover 4, which is convenient for the silicone sleeve 6 to be attached to the annular top cover 4. Glue coating seams for applying waterproof adhesive are opened at both ends of the silicone sleeve 6, which is convenient for the silicone sleeve 6 to be tightly sleeved on the bridge body 2 and fixed on the annular top cover 4; The elasticity of the silicone sleeve 6 can stretch it to the outside of the bridge body 2, and make the silicone ribs 9 attached to the inner side of the annular top cover 4. Through the fixation of two rings 7 and two T-shaped sleeves 8, the silicone sleeve 6 can be quickly fixed between the bridge body 2 and the annular top cover 4, and reinforced by the glue seam on the silicone sleeve 6 to prevent rainwater and mud and sand impurities from entering the protective shell 3 and the bottom ring 1 of the device, thereby ensuring the accuracy of the measuring rod 5 in measuring the inclination of the bridge body 2.

[0023] Working principle: First, the user puts the strip-shaped silicone sleeve 6 on the outside of the bridge body 2, puts one of the rings 7 on the T-shaped sleeve 8, and inserts the silicone rib 9 into the inner side of the annular top cover 4 in a ring shape, so that the silicone rib 9 can be tightly attached to the inner circle of the annular top cover 4. At this time, put another ring 7 on the T-shaped sleeve 8, and the silicone sleeve 6 can be barrel-shaped and put on the outside of the bridge body 2 and the top of the annular top cover 4. Finally, the user applies waterproof glue on the glue seam of the silicone sleeve 6 to reinforce the silicone sleeve 6, so as to complete the sealing between the bridge body 2 and the annular top cover 4, prevent rainwater and mud and sand impurities from entering the inner side of the protective shell 3, and utilize the elasticity of the silicone sleeve 6 so as not to affect the inclination of the bridge body 2, thereby achieving the effect of sealing protection and improving measurement accuracy.

[0024] Example 2: Please refer to Figure 2-Figure 9, this embodiment further explains the first embodiment. The test mechanism shown in the figure includes an annular frame 10 fixedly mounted on the top of the bottom ring 1 of the device, an annular water box 11 is fixedly mounted on the inner side of the annular frame 10, a contact ball 12 is fixedly mounted on the top of the measuring rod 5, the contact ball 12 contacts the outer side of the bridge body 2, so that the measuring rod 5 and the bridge body 2 remain parallel, and a mounting seat 13 is rotatably mounted on the bottom end of the measuring rod 5, so that when the bridge body 2 is tilted, the measuring rod 5 can swing with the mounting seat 13 as a fulcrum, and the mounting seat 13 is fixedly mounted on the top of the annular frame 10, and a fixing plate 14 is fixedly mounted on the side of the measuring rod 5 away from the bridge body 2, and an arc-shaped piston rod 15 is fixedly mounted on the outer side of the fixing plate 14. A plurality of arc-shaped water injection cylinders 16 are installed, which are respectively matched with a plurality of arc-shaped piston rods 15. A water injection pipe 33 is fixedly installed at the bottom end of the arc-shaped water injection cylinder 16. The water injection pipe 33 is fixedly installed on the inner side of the annular water box 11. When the measuring rod 5 swings, it can drive the arc-shaped piston rod 15 to move along the inner side of the arc-shaped water injection cylinder 16. The water in the arc-shaped water injection cylinder 16 can enter the annular water box 11 through the water injection pipe 33. An arc-shaped spring 17 is arranged on the outer side of the arc-shaped piston rod 15. The arc-shaped spring 17 is fixedly installed between the fixed plate 14 and the arc-shaped water injection cylinder 16. A liquid level detector 18 extending to the inside of the annular water box 11 is fixedly installed on the top of the annular frame 10. According to the liquid level height in the annular water box 11, it is judged whether the bridge body 2 is tilted.

[0025] The leveling mechanism includes a mounting plate 19 arranged on the outside of the arc-shaped water injection cylinder 16, and two plug rods 20 are fixedly installed on the outside of the mounting plate 19 and extend to the inside of the arc-shaped water injection cylinder 16 in a symmetrical sliding manner. An insert block 21 is fixedly installed between the two plug rods 20. A plurality of slots that are evenly distributed and matched with the insert block 21 are provided on the outside of the arc-shaped piston rod 15. The top of the slot and the end of the insert block 21 away from the plug rod 20 are both inclined structures, so that when the arc-shaped piston rod 15 moves, the slot on the arc-shaped piston rod 15 can push the insert block 21 to move. A positioning spring 22 is arranged on the outside of the insert rod 20. The positioning spring 22 is fixedly installed between the inner side of the arc-shaped water injection cylinder 16 and the insert block 21. The insert block 21 is inserted into the arc-shaped piston rod 15 by utilizing the rebound force of the positioning spring 22. The slot prevents the arc piston rod 15 from rebounding. Two symmetrically distributed positioning plates 23 are fixedly installed on the outer side of the mounting plate 19. A sliding roller 24 is rotatably installed between the two positioning plates 23. A swivel 25 is arranged between the multiple mounting plates 19. The swivel 25 is located between the mounting plate 19 and the sliding roller 24. A push bar 26 fixedly installed on the outer side of the swivel 25 is arranged on the outer side of the sliding roller 24. The distance between the swivel 25 and the mounting plate 19 is greater than the length of the insert block 21 to prevent the mounting plate 19 from contacting the swivel 25 when moving. The push bar 26 can push the sliding roller 24 to move. A plurality of sliding cylinders 27 that are symmetrical in center are slidably sleeved on the outer side of the swivel 25. A bracket 28 is fixedly installed between the sliding cylinder 27 and the bottom ring 1 of the device to provide positioning for the swivel 25.

[0026] In this embodiment: the measuring rod 5 can contact the outer side of the bridge body 2 through the contact ball 12 to ensure that the measuring rod 5 and the bridge body 2 remain parallel. When the bridge body 2 tilts due to settlement, the bridge body 2 pushes the contact ball 12 in the corresponding tilt direction to move, so that the contact ball 12 pushes the measuring rod 5 to swing with the mounting seat 13 as a fulcrum. The mounting seat 13 and the child labor fixing plate 14 drive the arc piston rod 15 to move along the inner side of the arc water injection cylinder 16, and the water in the arc water injection cylinder 16 is injected into the annular water box 11 through the water injection pipe 33, so that the water level in the annular water box 11 rises. At this time, the liquid level detector 18 can obtain the current water level, and then derive the settlement of the bridge body 2. Thus, a liquid level detector 18 can detect the tilt of the bridge body 2 Monitoring is performed to reduce the cost of measuring the settlement of the bridge body 2, which is convenient for later maintenance. When the water level is too high, an alarm can be sounded to notify the user, which is convenient for the user to handle in time. At the same time, when the arc piston rod 15 moves, the inclined surface of one end of the plug block 21 can be pushed to move through the slot on its outer side, so that the plug block 21 pushes the plug rod 20 to move and compresses the positioning spring 22. When the arc piston rod 15 stops moving, the rebound force of the positioning spring 22 is used to insert the plug block 21 into the slot at the corresponding position. The bottom of the plug block 21 contacts the bottom of the slot, providing positioning for the arc piston rod 15 to prevent rebound, ensuring that the measuring rod 5 obtains the maximum inclination angle of the bridge body 2, which is convenient for later observation, thereby improving the efficiency of detection; During the early installation, the user rotates the swivel 25 and moves it along the outer side of the slide cylinder 27, so that the end of the push bar 26 rests against the outer side of the slide roller 24, and the slide roller 24 drives the mounting plate 19 to move through the positioning plate 23. The mounting plate 19 pulls the plug block 21 to move through the plug rod 20, and pulls the plug block 21 out of the slot on the arc piston rod 15, so that the arc spring 17 can push the fixed plate 14, so that the measuring rod 5 swings in the direction of the bridge body 2, and the contact balls 12 on the multiple measuring rods 5 can synchronously contact the outer side of the bridge body 2, and the multiple measuring rods 5 can synchronously remain parallel to the bridge body 2, thereby improving the convenience of installation.

[0027] Example 3: Please refer to Figure 5 and Figure 6 This embodiment further illustrates other embodiments. The top of the mounting seat 13 in the figure is fixedly installed with two symmetrically distributed angle disks 29 for observing and measuring the inclination angle. The outer side of the measuring rod 5 is fixedly installed with two indicator plates 30 respectively matched with the two angle disks 29, so as to quickly obtain the inclination angle of the measuring rod 5. The top of the mounting seat 13 is fixedly installed with a limit block 31. The side of the measuring rod 5 away from the fixed plate 14 contacts the outer side of the limit block 31 to ensure that the measuring rod 5 is in a vertical state.

[0028] In the present embodiment: when the measuring rod 5 swings, it can drive the indicator plate 30 to move along the outer side of the angle disk 29. When the user makes regular observations, he can obtain the inclination of the bridge body 2 according to the angle of the angle disk 29 indicated by the indicator plate 30, and then obtain the settlement of the bridge body 2, thereby improving the convenience of observation. When resetting, the measuring rod 5 can contact the limit block 31 to prevent the rebound force of the arc spring 17 from being too large, causing the contact ball 12 to hit the bridge body 2.

[0029] Example 4: Please refer to Figure 4 and Figure 6 This embodiment further illustrates other embodiments. A water supply pipe 32 extending to the top of the annular frame 10 is fixedly installed on the top of the annular water box 11 in the figure. A sealing plug 34 is installed on the top of the water supply pipe 32 for filling water into the annular water box 11. A control panel 35 with an alarm is fixedly installed on the outer side of the liquid level detector 18 to facilitate timely alarm prevention. The measuring rod 5 is connected to the contact ball 12 through a screw 36 to facilitate installation, disassembly and replacement.

[0030] In the present embodiment: the user can open the sealing plug 34, replenish water to the annular frame 10 through the water replenishment pipe 32, and the control panel 35 on the liquid level detector 18 can obtain the water injection height. When the water level in the annular water box 11 increases, the control panel 35 can promptly alarm and notify, so that the user can promptly repair the bridge body 2. The user can rotate the contact ball 12 to remove the contact ball 12 from the screw 36 on the measuring rod 5, which is convenient for installation, disassembly and replacement, so that the contact ball 12 can adapt to bridge bodies 2 of more sizes.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A settlement measuring device for bridge construction, characterized in that: include: A device bottom ring (1) and a bridge body (2) arranged inside the device bottom ring (1); a protective shell (3) is fixedly mounted on the top of the device bottom ring (1); an annular top cover (4) is fixedly mounted on the top of the protective shell (3); and a plurality of centrally symmetrical measuring rods (5) are arranged inside the device bottom ring (1); Also includes: A sealing mechanism, used for sealing the gap between the annular top cover (4) and the bridge body (2), the sealing mechanism being installed on the top of the annular top cover (4); A testing mechanism, used to enable a plurality of the measuring rods (5) to test the real-time settlement of the bridge body (2), the testing mechanism being installed on the top of the bottom ring (1) of the device; A leveling mechanism is used to synchronously align the plurality of measuring rods (5) with the bridge body (2), and the leveling mechanism is installed on the top of the bottom ring (1) of the device.

2. A settlement measurement device for bridge construction according to claim 1, characterized in that: The sealing mechanism comprises a silicone sleeve (6) arranged on the top of the annular top cover (4), the silicone sleeve (6) being annularly sleeved on the outer side of the bridge body (2), both ends of the silicone sleeve (6) being fixedly mounted with sleeve rings (7), the top of the annular top cover (4) being fixedly mounted with two T-shaped sleeve seats (8) for limiting sleeves of the two sleeve rings (7), the outer side of the silicone sleeve (6) being an inclined structure, the bottom of the silicone sleeve (6) being fixedly mounted with silicone ribs (9), the outer side of the silicone ribs (9) being in contact with the inner side of the annular top cover (4), and both ends of the silicone sleeve (6) being provided with glue coating seams for coating waterproof adhesive.

3. A settlement measurement device for bridge construction according to claim 2, characterized in that: The testing mechanism comprises an annular frame (10) fixedly mounted on the top of the bottom ring (1) of the device, an annular water box (11) fixedly mounted on the inner side of the annular frame (10), a contact ball (12) fixedly mounted on the top of the measuring rod (5), the contact ball (12) being in contact with the outer side of the bridge body (2), a mounting seat (13) rotatably mounted on the bottom end of the measuring rod (5), the mounting seat (13) fixedly mounted on the top of the annular frame (10), a fixing plate (14) fixedly mounted on the side of the measuring rod (5) away from the bridge body (2), an arc-shaped piston fixedly mounted on the outer side of the fixing plate (14) Rod (15), a plurality of arc-shaped water injection cylinders (16) respectively matched with the plurality of arc-shaped piston rods (15) are fixedly mounted on the outer side of the annular frame (10), a water injection pipe (33) is fixedly mounted on the bottom end of the arc-shaped water injection cylinder (16), the water injection pipe (33) is fixedly mounted on the inner side of the annular water box (11), an arc-shaped spring (17) is arranged on the outer side of the arc-shaped piston rod (15), the arc-shaped spring (17) is fixedly mounted between the fixing plate (14) and the arc-shaped water injection cylinder (16), and a liquid level detector (18) extending into the interior of the annular water box (11) is fixedly mounted on the top of the annular frame (10).

4. A settlement measurement device for bridge construction according to claim 3, characterized in that: The leveling mechanism comprises a mounting plate (19) arranged on the outside of the arc-shaped water injection cylinder (16); two insertion rods (20) are fixedly mounted on the outside of the mounting plate (19) and extend symmetrically and slideably to the inside of the arc-shaped water injection cylinder (16); an insertion block (21) is fixedly mounted between the two insertion rods (20); a plurality of slots are arranged on the outside of the arc-shaped piston rod (15) and are matched with the insertion block (21) at equal intervals; the top of the slot and the end of the insertion block (21) away from the insertion rod (20) are both inclined structures; a positioning spring (22) is arranged on the outside of the insertion rod (20); the positioning spring (22) is fixedly mounted on the arc-shaped water injection cylinder (1 6) and the insert block (21), two symmetrically distributed positioning plates (23) are fixedly installed on the outer side of the mounting plate (19), a sliding roller (24) is rotatably installed between the two positioning plates (23), a rotating ring (25) is arranged between the plurality of mounting plates (19), the rotating ring (25) is located between the mounting plate (19) and the sliding roller (24), a push strip (26) fixedly installed on the outer side of the rotating ring (25) is arranged on the outer side of the sliding roller (24), a plurality of centrally symmetrical sliding cylinders (27) are slidably sleeved on the outer side of the rotating ring (25), and a bracket (28) is fixedly installed between the sliding cylinder (27) and the bottom ring (1) of the device.

5. The settlement measurement device for bridge construction according to claim 3, characterized in that: Two symmetrically distributed angle plates (29) are fixedly mounted on the top of the mounting seat (13).

6. A settlement measurement device for bridge construction according to claim 5, characterized in that: Two indicator plates (30) respectively matched with the two angle discs (29) are fixedly mounted on the outer side of the measuring rod (5).

7. A settlement measurement device for bridge construction according to claim 3, characterized in that: A limit block (31) is fixedly mounted on the top of the mounting seat (13), and a side of the measuring rod (5) away from the fixing plate (14) contacts the outer side of the limit block (31).

8. The settlement measurement device for bridge construction according to claim 3, characterized in that: A water supply pipe (32) extending to the top of the annular frame (10) is fixedly mounted on the top of the annular water box (11), and a sealing plug (34) is mounted on the top of the water supply pipe (32).

9. A settlement measurement device for bridge construction according to claim 3, characterized in that: A control panel (35) capable of generating an alarm is fixedly mounted on the outer side of the liquid level detector (18).

10. A settlement measurement device for bridge construction according to claim 3, characterized in that: The measuring rod (5) is connected to the contact ball (12) via a screw rod (36).

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