Bridge inclination angle measuring tool

Abstract

The utility model provides a bridge inclination angle measuring tool which effectively solves the problems that in the prior art, the inclination angle and direction of a bridge floor cannot be measured at the same time, and the tool is complex in structure and inconvenient to carry. According to the technical scheme for solving the problems, the device comprises a horizontal base, a transparent outer spherical shell is arranged above the base, the outer spherical shell and the base are fixed together through a plurality of supporting rods, an inner spherical shell concentric with the outer spherical shell is arranged in the outer spherical shell, the inner spherical shell is made of a transparent material, and the inner spherical shell and the outer spherical shell are fixed through a fixing rod; a central block is arranged in the inner spherical shell; a plurality of small rods are arranged around the central block; a balancing weight is arranged at the lower end of the gravity block; a laser emitter is fixed at the lower end of the balancing weight, and laser emitted by the laser emitter is vertically downward; the device is ingenious in structure, can measure the included angle between the bridge floor and the horizontal plane, can measure the inclination angle variation of a bridge with load, can directly obtain the inclination direction of the bridge floor in the measurement process, and is high in measurement efficiency and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of periodic bridge detection, in particular to a bridge inclination measuring tool. Background Art

[0002] Newly built bridges and those that have been reinforced or rebuilt require load testing to verify whether the normal operating status and bearing capacity of the bridge structure meet design requirements. One of the required inspection items is the inclination angle and inclination direction of the bridge deck and other parts under load. In this regard, the Chinese patent with authorization announcement number CN212228402U discloses a bridge and bridge performance detection device in the prior art. In this device, sensors are installed on a cross-axis connector to measure the inclination angle and direction of the box girder relative to the pier. However, there are the following problems in use: First, the device is only suitable for the relative angle and changes between the box girder and the pier, and cannot be measured on the bridge deck; second, the structure is relatively complex and requires a compact sensor as an auxiliary, which is not convenient to carry.

[0003] A bridge inclination measurement tool is now provided, which can measure the angle between the bridge deck and the horizontal plane, thereby measuring the angular change of the bridge inclination when there is a load. At the same time, the direction of the bridge deck inclination can be directly obtained during the measurement process, with high measurement efficiency and easy portability. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a bridge inclination measuring tool, which effectively solves the problem that the existing technology cannot simultaneously measure the inclination angle and direction of the bridge deck and has a complex structure and is inconvenient to carry.

[0005] The technical solution is to include a horizontal base with a transparent outer spherical shell above the base, the outer spherical shell and the base being fixed together by multiple support rods, an inner spherical shell being concentric with the outer spherical shell inside the outer spherical shell, the inner spherical shell being made of transparent material, and the inner spherical shell and the outer spherical shell being fixed together by multiple fixing rods; a central block being provided inside the inner spherical shell, and a plurality of small rods being evenly distributed in a circle around the central block, the plurality of small rods being in contact with the inner spherical shell, and the center of the inner spherical shell being in a plane formed by the plurality of small rods; a counterweight being fixed to the lower end of the center of gravity block, the counterweight making the plane formed by the plurality of small rods remain horizontal; a laser emitter being fixed to the lower end of the counterweight, and the laser emitted by the laser emitter is directed vertically downward.

[0006] Furthermore, a rotatable ball is installed at the end of the small rod, and the ball can roll on the side wall of the inner spherical shell.

[0007] Furthermore, the outer side wall of the outer spherical shell is provided with scales indicating orientation and angle.

[0008] Furthermore, the outer spherical shell and the inner spherical shell are both assembled in multiple pieces.

[0009] Furthermore, the laser transmitter uses solar cells to provide electrical energy.

[0010] The utility model has an ingenious structure and can measure the angle between the bridge deck and the horizontal plane, so as to measure the angular change of the inclination of the bridge when there is a load. At the same time, the direction of the inclination of the bridge deck can be directly obtained during the measurement process, with high measurement efficiency and convenient carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall schematic diagram of the utility model.

[0012] Figure 2 This is a front sectional view of the utility model.

[0013] Figure 3 This is a structural diagram of the center block, counterweight block, small rod and small ball in the utility model. DETAILED DESCRIPTION

[0014] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.

[0015] Depend on Figures 1 to 3 The utility model includes a horizontal base 1, with a transparent outer spherical shell 2 above the base 1, the outer spherical shell 2 and the base 1 are fixed together by multiple support rods 3, the outer spherical shell 2 has an inner spherical shell 4 concentric with the inner spherical shell 4, the inner spherical shell 4 is made of transparent material, and the inner spherical shell 4 and the outer spherical shell 2 are fixed together by multiple fixing rods 5; the inner spherical shell 4 has a central block 6, and the central block 6 is surrounded by multiple small rods 7 that are evenly distributed in a circle, and the multiple small rods 7 are in contact with the inner spherical shell 4, and the center of the inner spherical shell 4 is in the plane formed by the multiple small rods 7; a counterweight block 8 is fixed to the lower end of the center of gravity block, and the counterweight block 8 keeps the plane formed by the multiple small rods 7 in a horizontal state; a laser emitter 9 is fixed to the lower end of the counterweight block 8, and the laser emitted by the laser emitter 9 is vertically downward.

[0016] In order to reduce the friction between the end of the small rod 7 and the side wall of the inner spherical shell 4 and improve the measurement accuracy, a rotatable small ball 10 is installed on the end of the small rod 7, and the small ball 10 can roll on the side wall of the inner spherical shell 4.

[0017] The outer side wall of the outer spherical shell 2 is provided with scales indicating orientation and angle.

[0018] In order to facilitate the calibration of the angle of the laser emitter 9 and thereby ensure the accuracy of the measurement, the outer spherical shell 2 and the inner spherical shell 4 are both assembled in multiple pieces.

[0019] In order to enable long-term use without disassembling parts and to ensure measurement accuracy, the laser emitter 9 uses a solar cell to provide electrical energy.

[0020] It is worth noting that this solution can also measure the relative angle and change between the bottom of the box girder and the bridge pier, and measure the initial angle of the bottom of the box girder and the angle when loaded. In this way, the change in the inclination angle and direction of the bottom of the box girder when unloaded and loaded can be inferred; on this basis, by superimposing the angle of the bridge pier, the angle between the box girder and the bridge pier can be obtained.

[0021] During measurement, the base 1 in the device is placed on the bridge deck so that the bridge deck is parallel to the upper surface of the base 1. At this time, the counterweight 8 makes the plane formed by the multiple small rods 7 horizontal, and the centers of the inner spherical shell 4 and the outer spherical shell 2 are both in this plane, so the light beam emitted by the laser emitter 9 is in a vertical state. The laser emitter 9 emits a laser and shines it on the scale on the outside of the outer spherical shell 2, recording the angle and direction of the tilt in the no-load state at this time, and then when there is a load on the bridge, the tilt angle and direction of the bridge deck are recorded here; in this way, the tilt of the bridge when it is no-loaded and loaded can be obtained.

[0022] The utility model has an ingenious structure and can measure the angle between the bridge deck and the horizontal plane, so as to measure the angular change of the inclination of the bridge when there is a load. At the same time, the direction of the inclination of the bridge deck can be directly obtained during the measurement process, with high measurement efficiency and convenient carrying.

Claims

1. A bridge inclination measurement tool, characterized in that: The invention comprises a horizontal base (1), a transparent outer spherical shell (2) is provided above the base (1), the outer spherical shell (2) and the base (1) are fixed together via a plurality of supporting rods (3), an inner spherical shell (4) is provided in the outer spherical shell (2) and is concentric with the inner spherical shell (4), the inner spherical shell (4) is made of a transparent material, and the inner spherical shell (4) and the outer spherical shell (2) are fixed together via a plurality of fixing rods (5); a central block (6) is provided in the inner spherical shell (4), a plurality of small rods (7) are uniformly distributed around the central block (6), the plurality of small rods (7) are in contact with the inner spherical shell (4), and the center of the inner spherical shell (4) is located in a plane formed by the plurality of small rods (7); a counterweight block (8) is fixed at the lower end of the center of gravity block, and the counterweight block (8) keeps the plane formed by the plurality of small rods (7) in a horizontal state; a laser emitter (9) is fixed at the lower end of the counterweight block (8), and the laser emitted by the laser emitter (9) is vertically downward.

2. A bridge inclination measuring tool according to claim 1, characterized in that: A rotatable ball (10) is mounted on the end of the small rod (7), and the ball (10) can roll on the side wall of the inner spherical shell (4).

3. A bridge inclination measuring tool according to claim 1, characterized in that: The outer side wall of the outer spherical shell (2) is provided with scales indicating orientation and angle.

4. A bridge inclination measuring tool according to any one of claims 1 to 3, characterized in that: The outer spherical shell (2) and the inner spherical shell (4) are both assembled in multiple pieces.

5. A bridge inclination measuring tool according to any one of claims 1 to 3, characterized in that: The laser emitter (9) uses a solar cell to provide electrical energy.

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