Portable bridge support shearing angle detection device

Abstract

The utility model discloses a portable bridge support shearing angle detection device, and belongs to the technical field of bridge support detection. The device comprises a main shell, a measuring pasting rod and an angle reader, a horizontal bubble mechanism is arranged on the main shell, the bottom end of the side portion of the main shell is rotatably connected with the bottom end of the measuring pasting rod, and the angle reader is arranged at the top end of the side portion of the main shell; the angle reader comprises a rotating shaft and a graduated scale wound on the periphery of the rotating shaft, the outer end of the graduated scale is connected with the top end of the measuring pasting rod, and the graduated scale extends out along with rotation of the measuring pasting rod relative to the main shell so as to display the included angle between the measuring pasting rod and the side portion of the main shell and complete detection of the shearing angle of the bridge support. The measuring pasting rod rotates to drive the graduated scale to stretch out, the shearing angle of the bridge support can be rapidly and accurately obtained from the graduated scale, the structure is simple, carrying is convenient, operation is flexible, reading is convenient and fast, convenience and reliable guarantee are provided for multi-azimuth multi-angle shearing angle measurement in more complex environments, and the shearing angle measuring device is suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge bearing detection, in particular to a portable bridge bearing shear angle detection device. Background Art

[0002] Bridge bearings are important structural components that connect the upper and lower structures of bridges. Common bearings in bridge engineering include: felt or flat bearings, plate rubber bearings, spherical bearings, steel bearings and special bearings, among which plate rubber bearings are used more frequently in bridge bearings. In the daily bridge health status inspection process, the health status of bridge bearings needs to be checked. Among the indicators tested, the bearing shear angle is the key indicator for evaluating the health status of bridge bearings.

[0003] At present, there are roughly two ways to detect the shear angle of the bridge bearing. One method is to determine the shear angle of the bearing by naked eye observation by the inspector, and the test result has a large deviation; the other method is the bridge bearing shear angle measuring instrument currently on the market, which generally has poor measurement accuracy, cumbersome operation, and cannot be applied to accurate measurement of multiple directions and angles under complex conditions, and is not suitable for promotion and use. For example, the prior art CN202121765830.5 is called a bridge bearing shear angle measuring instrument. This measuring instrument can only measure the lower shear surface of the bridge bearing, and the shear angle of the lower shear surface must be an acute angle, and the test results must be read directly. However, the upper shear surface of the bridge bearing cannot be measured, which has the disadvantage of limited use. And the measuring instrument must be read on-site, which is not conducive to operation in a complex detection environment with a narrow position. For example, the prior art CN202322095510.9 is called a portable plate rubber bearing shear angle measuring device, but this device can only measure the upper shear surface of the bridge bearing, and cannot measure the lower shear surface of the bridge bearing, which also has the disadvantage of limited use.

[0004] It can be seen that the above-mentioned existing bridge bearing shear angle detection device still has inconveniences and defects in structure, method and use, and it is urgent to be further improved. How to create a new portable bridge bearing shear angle detection device, which can drive the scale of the angle reader to extend by rotating the measuring rod, and can quickly and accurately obtain the shear angle of the bridge bearing from the scale, and by fixing the angle of the measuring rod, it can meet the measurement under various complex detection surface conditions, with a wide range of applications, and be portable and lightweight. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a portable bridge bearing shear angle detection device, which can drive the scale of the angle reader to extend by rotating the measuring rod, so as to quickly and accurately obtain the shear angle of the bridge bearing from the scale, and can meet the measurement under various complex detection surface conditions by fixing the angle of the measuring rod. It has a wide range of applications and is portable and lightweight, thereby overcoming the shortcomings of existing bridge bearing shear angle detection devices.

[0006] In order to solve the above technical problems, the utility model provides a portable bridge bearing shear angle detection device, including a main shell, a measuring rod and an angle reader, the main shell is provided with a horizontal bubble mechanism for controlling the main shell to be in a plumb state, the bottom end of the side of the main shell can be rotatably connected to the bottom end of the measuring rod, and the angle reader is arranged at the top end of the side of the main shell; the angle reader includes a rotating shaft and a scale wrapped around the outer circumference of the rotating shaft, the outer end of the scale is connected to the top end of the measuring rod, and the scale is extended as the measuring rod rotates relative to the main shell to display the angle between the measuring rod and the side of the main shell, thereby completing the detection of the shear angle of the bridge bearing.

[0007] As a further improvement, the angle reader is arranged inside the main housing, and a scale outlet for the scale to extend out is provided at the top end of the side portion of the main housing.

[0008] As a further improvement, the scale range of the scale is 0-90°, and the scales on the scale are arranged in an uneven spacing structure.

[0009] As a further improvement, the scale adopts a steel tape measure structure.

[0010] As a further improvement, the measuring rod is rotatably fixed to the bottom end of the side of the main shell through a pivot structure with damping.

[0011] As a further improvement, a locking member for fixing the rotation angle of the measuring rod is also provided at the bottom end of the side portion of the main shell.

[0012] As a further improvement, the length of the measuring rod is the same as the height of the side of the main shell.

[0013] A further improvement includes a light source and a battery assembly connected thereto, and a power switch for controlling the on and off of the light source.

[0014] As a further improvement, the light source is arranged on a side wall of the main housing close to the measuring rod.

[0015] After adopting such a design, the utility model has at least the following advantages:

[0016] 1. The portable bridge bearing shear angle detection device of the utility model drives the extension of the scale by the rotation of the measuring rod relative to the main shell, so as to quickly and accurately obtain the shear angle of the bridge bearing from the scale. The utility model has a simple structure and is easy to operate. The horizontal bubble mechanism is set to ensure that the main shell is in a plumb state during measurement, thereby ensuring the accuracy of the shear angle detection and providing favorable conditions for determining the health of the bridge bearing.

[0017] 2. The setting of a pivot structure with damping or a locking part facilitates the fixation of the shear angle, facilitates data reading, and realizes the multi-directional and multi-angle shear angle measurement of bridge supports under complex conditions, which is more convenient and quick.

[0018] 3. The light source setting also provides more convenient conditions for measurement in complex environments, which is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a structural schematic diagram of a portable bridge support shear angle detection device of the utility model.

[0021] Figure 2 yes Figure 1 Left view of the main housing in the portable bridge bearing shear angle detection device.

[0022] Figure 3 yes Figure 1 Right view of the main housing in the portable bridge support shear angle detection device.

[0023] Figure 4 It is a schematic diagram of the result when the portable bridge bearing shear angle detection device of the utility model is in the maximum detection range.

[0024] Figure 5 It is a detection schematic diagram of the portable bridge bearing shear angle detection device of the utility model when it is applied to the bridge bearing. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0026] See attached Figure 1 As shown, the portable bridge support shear angle detection device of this embodiment includes a main shell 3, a measuring rod 7 and an angle reader.

[0027] In this embodiment, the main housing 3 is a square housing, on which a horizontal bubble mechanism 4 is provided. The horizontal bubble mechanism 4 is used to control the main housing 3 to be in a vertical state during use, thereby ensuring the accuracy of detection.

[0028] The bottom end of the side of the main housing 3 can be rotatably connected to the bottom end of the measuring rod 7, and the angle reader is arranged at the top end of the side of the main housing 3. Specifically, the angle reader includes a rotating shaft 2 and a scale 1 wrapped around the outer circumference of the rotating shaft 2, and the outer end of the scale 1 is connected to the top end of the measuring rod 7. Then the scale 1 extends as the measuring rod 7 rotates relative to the main housing 3, and the scale 6 on the scale 1 is used to display the angle between the measuring rod 7 and the side of the main housing 3, so as to complete the measurement of the shear angle of the bridge bearing.

[0029] More specifically, the angle reader is disposed inside the main housing 3, and a scale outlet 10 is provided at the top end of the side of the main housing 3 for the scale 1 to extend out. Figure 3 shown.

[0030] In this embodiment, the scale 1 adopts a steel tape measure structure, the scale range of which is 0-90°, and the scale 6 on the scale 1 is set according to the angle between the measuring rod 7 and the side of the main shell 3, that is, an uneven spacing arrangement structure is adopted. Figure 4 The scale 6 on the scale 1 in this embodiment can be derived according to trigonometric function, and the derived trigonometric function formula is:

[0031] L=2*r*sin(φ / 2)

[0032] Among them, L is the value of the customized scale, r is the length of the measuring rod, and φ is the angle between the measuring rod and the side of the main shell. That is, there are 91 scales on the scale 1, 0°, 1°, 2°, 3°...88°, 89°, 90°, and each degree corresponds to a fixed scale value, that is, {2*r*sin(0° / 2), 2*r*sin(1° / 2), 2*r*sin(2° / 2), 2*r*sin(3° / 2)...2*r*sin(88° / 2), 2*r*sin(89° / 2), 2*r*sin(90° / 2)}.

[0033] In this embodiment, the length of the measuring rod 7 is the same as the side height of the main shell 3. The measuring rod 7 is rotatably fixed to the bottom end of the side of the main shell 3 through the rotating shaft 5. Preferably, the bottom end of the side of the main shell 3 is also provided with a locking member for fixing the rotation angle of the measuring rod 7, such as any existing locking member such as a locking nut, a locking buckle, or the rotating shaft 5 adopts a pivot structure with damping so that the measuring rod 7 can be fixed at the rotation angle. This structure can satisfy the requirement that the detection device only needs to fix the shear angle during measurement, and then the measuring device can be taken out. Even if the angle reading is completed after it leaves the bridge support, the angle reading will not change due to the movement of the detection device, thereby improving the convenience and flexibility of detection.

[0034] In a more preferred embodiment, the portable bridge support shear angle detection device further includes a light source 11 and a battery assembly 9 connected thereto, and a power switch 8 for controlling the on and off of the light source 11, as shown in the attached Figure 2 The light source 11 is preferably disposed on the side wall of the main housing 3 close to the measuring rod 7, and the battery assembly 9 uses three No. 5 batteries, which is convenient for reading the scale 6 on the scale 1 in a dark detection environment.

[0035] See attached Figure 5 As shown, the bridge rubber bearing 13 is arranged between the bearing upper steel plate 12 and the bearing lower steel plate 14. The portable bridge bearing shear angle detection device of this embodiment is used to detect the shear angle of the shear surface on the left side of the bridge rubber bearing 13 as follows:

[0036] (i) placing the detection device at the upper shear surface of the bridge rubber bearing 13, adjusting the main housing 3 of the detection device so that the horizontal bubble device 4 thereon remains centered, thereby ensuring that the main housing 3 remains in a vertical state, and the connecting end of the main housing 3 and the measuring rod 7 rests on the upper shear surface;

[0037] (ii) manually rotating the measuring rod 7 outward until the measuring rod 7 is parallel and closely attached to the shear surface of the bridge rubber bearing 13;

[0038] (iii) directly reading the reading of the ruler 1 protruding from the main housing 3, or after fixing the measuring stick 7, taking out the detection device and then reading the reading of the ruler 1 protruding from the main housing 3; if the environment is dark, turn on the power switch and read the reading of the ruler 1 protruding from the main housing 3;

[0039] (iv) Repeat the above steps to measure the shear angle at multiple positions on the upper shear surface of the bridge rubber bearing 13 and find the maximum value of the shear angle, so as to obtain the real state of the bridge bearing more accurately.

[0040] When detecting the shear surface on the right side of the bridge rubber bearing 13, it is only necessary to invert the detection device and perform the detection according to the above detection steps, which is convenient and quick.

[0041] The portable bridge bearing shear angle detection device of the utility model has a simple structure, is easy to carry, flexible to operate, and convenient to read. A more humane light source is added, which provides convenience and reliable guarantee for multi-directional and multi-angle measurement in more complex environments and is suitable for popularization and application.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Those skilled in the art may make some simple modifications, equivalent changes or modifications using the technical contents disclosed above, which are all within the protection scope of the present invention.

Claims

1. A portable bridge support shear angle detection device, characterized in that: Including the main housing, measuring rod and angle reader, The main housing is provided with a horizontal bubble mechanism for controlling the main housing to be in a vertical state, the bottom end of the side of the main housing can be rotatably connected to the bottom end of the measuring rod, and the top end of the side of the main housing is provided with the angle reader; The angle reader includes a rotating shaft and a scale wrapped around the outer circumference of the rotating shaft, the outer end of the scale is connected to the top end of the measuring rod, and the scale extends as the measuring rod rotates relative to the main shell to display the angle between the measuring rod and the side of the main shell, thereby completing the detection of the shear angle of the bridge bearing.

2. The portable bridge support shear angle detection device according to claim 1 is characterized in that: The angle reader is arranged inside the main housing, and a scale outlet for the scale to extend out is provided at the top end of the side portion of the main housing.

3. The portable bridge support shear angle detection device according to claim 2, characterized in that: The scale range of the scale is 0-90°, and the scales on the scale are arranged in an uneven spacing structure.

4. The portable bridge support shear angle detection device according to claim 3 is characterized in that: The scale adopts a steel tape measure structure.

5. The portable bridge support shear angle detection device according to claim 1, characterized in that: The measuring stick rod is rotatably fixed to the bottom end of the side of the main shell through a pivot structure with damping.

6. The portable bridge support shear angle detection device according to claim 1, characterized in that: The bottom end of the side of the main shell is also provided with a locking piece for fixing the rotation angle of the measuring rod.

7. The portable bridge support shear angle detection device according to claim 1, characterized in that: The length of the measuring rod is the same as the height of the side of the main shell.

8. The portable bridge bearing shear angle detection device according to any one of claims 1 to 7, characterized in that: It also includes a light source and a battery assembly connected thereto, and a power switch for controlling the on and off of the light source.

9. The portable bridge support shear angle detection device according to claim 8, characterized in that: The light source is arranged on a side wall of the main housing close to the measuring rod.

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