Highway bridge settlement measuring instrument

Abstract

The utility model relates to the technical field of settlement measurement, and discloses a highway bridge settlement measuring instrument, which comprises a measuring rope crossing between a reference pier and a measuring pier along the horizontal direction, a first mounting seat is fixedly arranged on the reference pier, and a second mounting seat is fixedly arranged on the measuring pier; a supporting piece is mounted on the first mounting seat; a pull rod is rotationally mounted on the second mounting seat; the measuring rope is wound on the supporting piece, one end of the measuring rope is fixedly connected with the pull rod, and the other end of the measuring rope is vertically downward and fixedly connected with the weight; two limiting blocks are fixedly arranged on the reference bridge pier, and the heavy block is located between the two limiting blocks and is in limiting sliding fit with the two limiting blocks; a measuring piece is arranged on the limiting block. According to the utility model, the settlement of the measuring bridge pier is measured through the measuring rope and the heavy block, the structure is simple, and the manufacturing and the use are convenient; and meanwhile, the bridge pier with a large span and a complex environment can be measured, and the applicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of settlement measurement, in particular to a highway bridge settlement measuring instrument. Background Art

[0002] Highway bridge settlement measurement is an important engineering monitoring activity. It can monitor the vertical displacement of the bridge under load and environmental conditions to ensure the safety and stability of the bridge.

[0003] Publication number: CN118293875A describes a highway bridge settlement measuring device, which includes a base plate and a positioning bar mechanism. The bottom of the base plate is provided with several supporting leg mechanisms, a mounting ring mechanism is provided on the base plate, and several sliders are provided on the mounting ring mechanism. The sliders are provided with positioning rod mechanisms and mounting frames, transmission mechanisms are provided on the sliders and mounting frames, a rotating frame mechanism is provided on the mounting frame, a rotating gear mechanism is provided on the rotating frame mechanism, and a multi-layer transmission mechanism is provided on the base plate.

[0004] The announcement number is: CN221099695U. A highway bridge inspection device described includes a base, a main platform, a pressure detection mechanism and a fixing mechanism. The base includes a telescopic rod, a main column and a chassis. The chassis is fixed to the ground by the cooperation of screw holes and screws. The telescopic rod is arranged inside the main column. The end of the telescopic rod away from the main column is hinged to the main platform. The top of the main platform is connected to the pressure detection mechanism. The end of the pressure detection mechanism away from the main platform is connected to the fixing mechanism. A spirit level is provided on the main platform.

[0005] Based on the above technical features, the problem that arises is that in the existing technology, the settlement measuring device has a relatively complex structure, is inconvenient to use and manufacture, and can only measure the settlement of bridges standing on the ground, but cannot measure the settlement of bridges standing in water, and has poor applicability.

[0006] Therefore, it is necessary to solve the above problems through highway bridge settlement measuring instruments. Utility Model Content

[0007] The purpose of the present utility model is to provide a highway bridge settlement measuring instrument to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highway bridge settlement measuring instrument, comprising a measuring rope horizontally spanning between a reference pier and a measuring pier, a first mounting seat fixedly arranged on the reference pier, and a second mounting seat fixedly arranged on the measuring pier; a support member is installed on the first mounting seat, and a pull rod is rotatably installed on the second mounting seat; the measuring rope is wound around the support member, and one end of the measuring rope is fixedly connected to the pull rod, and the other end is vertically downward and fixedly connected to a weight block; two limit blocks are fixedly arranged on the reference pier, and the weight block is located between the two limit blocks and is slidingly matched with the two limit blocks; a measuring member is provided on the limit block.

[0009] Preferably, the measuring piece includes scale lines, which are engraved along the vertical direction; the bottom edge of the weight block is aligned with the scale lines.

[0010] Preferably, the measuring component includes a laser displacement sensor, which is fixedly mounted on the limit block; a probe of the laser displacement sensor is located above the weight block and a detection laser is directed vertically downward toward the weight block.

[0011] Preferably, a microcomputer is fixedly installed on the reference bridge pier; the microcomputer is electrically connected to the laser displacement sensor.

[0012] Preferably, the support member includes a fixed pulley, which is rotatably arranged on the first mounting seat; the measuring rope passes around the fixed pulley and is in sliding contact with the fixed pulley.

[0013] The technical effects and advantages of this utility model are:

[0014] First, the utility model measures the settlement of the bridge pier by using a measuring rope and a weight, has a simple structure, and is easy to manufacture and use; and can also measure bridge piers with large spans and complex environments, and has strong applicability.

[0015] Second, the utility model can obtain the settlement of the measured bridge pier by only observing the height of the weight block when measuring. The measuring process is simple and the settlement of the measured bridge pier is reflected more intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic left-side perspective view of a first embodiment of the present invention;

[0017] Figure 2 This is an enlarged schematic diagram of point A in Example 1 of the present utility model;

[0018] Figure 3 This is an enlarged schematic diagram of point B in Example 1 of the present utility model;

[0019] Figure 4 This is a schematic right-side perspective view of a first embodiment of the present invention;

[0020] Figure 5 This is an enlarged schematic diagram of point C in Example 1 of the present utility model;

[0021] Figure 6 This is a three-dimensional top view of a first embodiment of the present invention;

[0022] Figure 7 This is an enlarged schematic diagram of point D in Example 1 of the present utility model;

[0023] Figure 8 This is an enlarged schematic diagram of point E in Example 1 of the present utility model;

[0024] Figure 9 This is a three-dimensional schematic diagram of the second embodiment of the present utility model;

[0025] Figure 10 This is a schematic diagram of settlement calculation for this utility model;

[0026] Figure 11 This is a schematic diagram of calculating the deflection angle of the utility model.

[0027] In the figure: 1. Reference bridge pier; 2. Measuring bridge pier; 3. Measuring rope; 4. First mounting seat; 5. Second mounting seat; 6. Weight block; 7. Limit block; 8. Scale line; 9. Laser displacement sensor; 10. Microcomputer; 11. Fixed pulley; 12. Pull rod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Example 1: The utility model provides Figures 1 to 8 The highway bridge settlement measuring instrument shown includes a measuring rope 3 spanning between a reference pier 1 and a measuring pier 2. A first mounting base 4 is fixedly provided on the reference pier 1, and a second mounting base 5 is fixedly provided on the measuring pier 2.

[0030] A pull rod 12 is rotatably mounted on the second mounting base 5 , and one end of the measuring rope 3 is fixedly connected to the pull rod 12 .

[0031] A support member is provided on the first mounting seat 4 , and the measuring rope 3 is wound around the support member for support.

[0032] The support member includes a fixed pulley 11, which is rotatably connected to the first mounting seat 4. The measuring rope 3 passes around the fixed pulley 11 and is in sliding contact with the fixed pulley 11.

[0033] The end of the measuring rope 3, away from the pull rod 12, passes over a fixed pulley 11 and is then extended vertically downwards to be fixedly connected to a weight 6. This weight pulls the measuring rope 3 taut. The weight of the weight 6 is significantly greater than that of the measuring rope 3, ensuring that the measuring rope 3 remains taut. The weight of the measuring pier 2 is significantly greater than that of the weight 6, ensuring that the weight 6 can be pulled upwards.

[0034] Two stoppers 7 are fixed to the reference pier 1. Both are vertical blocks with an L-shaped cross-section. The two stoppers 7 are symmetrically positioned, with the weight 6 positioned between them and slidingly engaging with them. A vertical guide slot is formed between the two stoppers 7 and the reference pier 1, and the weight 6 slides within the slot. This ensures smooth up and down movement of the weight 6 while preventing it from deflecting.

[0035] A measuring piece is provided on the limit block 7 for measuring the height of the rising weight 6 .

[0036] The measuring piece includes scale lines 8, and each stop block 7 is engraved with scale lines 8 in the vertical direction for comparison. The bottom edge of the weight block 6 is aligned with the scale lines 8 for measurement.

[0037] Working Principle of Example 1: During use, if the measuring bridge pier 2 experiences vertical settlement, it descends. This lowers the second mounting base 5, which in turn lowers the pull rod 12. The pull rod 12 then pulls the measuring rope 3, tilting it. During this process, the friction of the measuring rope 3 rotates the fixed pulley 11, simultaneously pulling the weight 6 upward.

[0038] The subsequent status diagram is as follows Figure 10 shown.

[0039] Before the measuring pier 2 settles, the length of the measuring rope 3 between the reference pier 1 and the measuring pier 2 is known as b.

[0040] After the measurement pier 2 settles, the length of the measuring rope 3 between the reference pier 1 and the measurement pier 2 is a, and the distance the measurement pier 2 settles is c.

[0041] At this time, a=b+the distance the weight 6 rises. The value of a is known. Since the values ​​of a and b are known, the value of c can be calculated according to the Pythagorean theorem, thereby obtaining the settlement value of the measured bridge pier 2.

[0042] If measuring pier 2 deflects and settles, it pulls second mounting base 5 away from reference pier 1, which in turn drives pull rod 12 away from reference pier 1. Pull rod 12 pulls measuring rope 3, tilting it. During this process, friction from measuring rope 3 rotates fixed pulley 11, simultaneously pulling weight 6 upward.

[0043] The subsequent status diagram is as follows Figure 11 shown.

[0044] Before the measuring pier 2 settles, the length of the measuring rope 3 between the reference pier 1 and the measuring pier 2 is known as b.

[0045] After the measurement pier 2 settles, the length of the measuring rope 3 between the reference pier 1 and the measurement pier 2 is known to be d, where d=b+the distance the weight 6 rises.

[0046] Next, use a protractor to measure the angle f between measuring rope 3 and reference pier 1. Using the law of sines, we can determine the horizontal distance e + h between the measuring point on measuring pier 2 and reference pier 1. Since e = b, the value of h can be determined. Furthermore, since the distance from the measuring point on measuring pier 2 to the bottom of measuring pier 2 is known, the law of sines can again be used to determine the deflection angle i of measuring pier 2.

[0047] Example 2: The present invention provides Figure 9 The highway bridge settlement measuring instrument shown in this embodiment differs from the first embodiment in that the measuring components include a laser displacement sensor 9 and a microcomputer 10. The laser displacement sensor 9 is fixedly mounted on top of the limit block 7, with the probe of the laser displacement sensor 9 positioned above the weight block 6, and the detection laser pointing vertically downward toward the weight block 6.

[0048] Microcomputer 10 is fixedly mounted on reference pier 1 and electrically connected to laser displacement sensor 9. It processes data and calculates settlement. Microcomputer 10 primarily consists of a 51-series single-chip microcomputer, a power supply, a digital display, and other electrical components. This technology is currently available and will not be elaborated upon here.

[0049] Working principle of embodiment 2: The difference between this working principle and embodiment 1 is that the laser displacement sensor 9 can measure the distance the weight block 6 rises, and the data of the distance is converted into an electrical signal and transmitted to the microcomputer 10 for data processing.

[0050] When it is necessary to obtain data on the deflection and settlement of the bridge pier 2, the data measured by the protractor can be manually input into the microcomputer 10 for calculation. The calculation principle is the same as that of the first embodiment.

[0051] The rest of the working process of this embodiment is the same as that of the first embodiment and will not be described in detail here.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A highway bridge settlement measuring instrument comprising a measuring rope (3) horizontally spanning between a reference pier (1) and a measuring pier (2), characterized in that: A first mounting seat (4) is fixedly provided on the reference pier (1), and a second mounting seat (5) is fixedly provided on the measuring pier (2); a support member is installed on the first mounting seat (4), and a pull rod (12) is rotatably installed on the second mounting seat (5); the measuring rope (3) is wound around the support member, and one end of the measuring rope (3) is fixedly connected to the pull rod (12), while the other end is vertically downward and fixedly connected to a weight block (6); two limit blocks (7) are fixedly provided on the reference pier (1), and the weight block (6) is located between the two limit blocks (7) and is limitedly slidably matched with the two limit blocks (7); a measuring member is provided on the limit block (7).

2. The highway bridge settlement measuring instrument according to claim 1, characterized in that: The measuring piece comprises a scale line (8), and the scale line (8) is engraved along the vertical direction; the bottom edge of the weight block (6) is aligned with the scale line (8).

3. The highway bridge settlement measuring instrument according to claim 1, characterized in that: The measuring component comprises a laser displacement sensor (9), which is fixedly mounted on a limit block (7); a probe of the laser displacement sensor (9) is located above the weight block (6), and a detection laser is directed vertically downward toward the weight block (6).

4. The highway bridge settlement measuring instrument according to claim 3, characterized in that: A microcomputer (10) is fixedly mounted on the reference bridge pier (1); the microcomputer (10) is electrically connected to a laser displacement sensor (9).

5. The highway bridge settlement measuring instrument according to claim 1, characterized in that: The support member comprises a fixed pulley (11), which is rotatably arranged on a first mounting seat (4); the measuring rope (3) passes around the fixed pulley (11) and is in sliding contact with the fixed pulley (11).

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