CN108716908B

CN108716908B - Building inclination measuring auxiliary ruler

Info

Publication number: CN108716908B
Application number: CN201810331899.3A
Authority: CN
Inventors: 袁长丰; 王英汀; 于浩杰; 袁子晋
Original assignee: Qingdao University of Technology
Current assignee: Qingdao University of Technology
Priority date: 2018-04-13
Filing date: 2018-04-13
Publication date: 2021-05-11
Anticipated expiration: 2038-04-13
Also published as: CN108716908A

Abstract

The invention provides a building inclination measurement auxiliary ruler, which comprises a straight ruler, wherein scales are arranged on the front surface of the straight ruler, a zero scale mark is arranged in the middle of the straight ruler, and positive scales and negative scales are respectively arranged on two sides of the zero scale mark; the back of the zero scale mark is provided with a clamping support which is in a straight plate shape and is vertical to the straight ruler to form a T shape; still set up the level bubble on the supplementary chi of building slope measurement, when the bubble is placed in the middle, the supplementary chi of building slope measurement is the horizontality. Has the advantages that: (1) the right angle formed between the ruler and the clamping support is convenient for clamping the auxiliary ruler at the wall, the defects that a common graduated scale cannot be perpendicular to the wall and the reference reading is not uniform are eliminated, and meanwhile, the ruler can be fixed at the same position every time, so that the measurement accuracy is improved; (2) the ruler can be kept horizontal all the time in the using process, and the observation accuracy is effectively improved; (3) the scale part of ruler is thickened, and is light and durable, and the error that the ruler itself buckles and leads to is still avoided.

Description

Building inclination measuring auxiliary ruler

Technical Field

The invention belongs to the field of building deformation measurement, and particularly relates to an auxiliary ruler for building inclination measurement.

Background

The total station instrument point throwing method is a common inclination observation method for carrying out integral inclination observation on a building, and the basic idea is as follows: laying reference points, pasting a reflector plate on the top of the building wall to be detected as a top monitoring point, taking the graduated scale as a bottom corresponding point, and locating the graduated scale and the top monitoring point on the same vertical line. After centering and leveling the total station, aligning the reflector plate, accurately moving the intersection point of the cross wires to the intersection point of the reflector plate, and vertically pulling down the lens of the total station to the position of the graduated scale for reading.

In the actual observation process, we find that: (1) because the wall edges are not in a complete right-angle state due to plastering and other reasons on the two sides of the wall surface, the reference reading of the graduated scale cannot be accurately aligned with the wall edges, and the fact that the reference reading starts from one reference reading every time cannot be ensured; (2) the problem of reading deviation caused by the fact that the graduated scale is not horizontal is very obvious, and due to the human error, monitoring data can be inaccurate, and early warning can be affected. For high-precision building deformation measurement, the above problems need to be solved.

Disclosure of Invention

The invention provides an auxiliary ruler for building inclination measurement, which is T-shaped and provided with leveling bubbles, can be clamped on corners of a building to keep the angle of the auxiliary ruler vertical and horizontal to the wall, and ensures that the reference reading starts from one reference reading every time, so that the observation is more accurate and convenient.

The invention is realized by the following technical scheme:

a building inclination measurement auxiliary ruler comprises a straight ruler, wherein scales are arranged on the front side of the straight ruler, a zero scale mark is arranged in the middle of the straight ruler, and positive scales and negative scales are respectively arranged on two sides of the zero scale mark; the back of the zero scale mark is provided with a clamping support which is in a straight plate shape and is vertical to the straight ruler to form a T shape; still set up the level bubble on the supplementary chi of building slope measurement, when the bubble is placed in the middle, the supplementary chi of building slope measurement is the horizontality.

Further, the level bubble sets up in the joint of card support and ruler.

Further, the clamping support is welded on the back of the ruler.

Further, the thickness of the ruler is 4-8 mm.

The invention has the following beneficial effects: (1) the right angle formed between the ruler and the clamping support is convenient for clamping the auxiliary ruler at the wall, ensures that the reference reading of the graduated scale starts from 0 reading every time, eliminates the defects that the common graduated scale cannot be perpendicular to the wall and the reference reading is not uniform, and simultaneously can fix the ruler at the same position every time, thereby improving the measurement accuracy; (2) by arranging the leveling bubble, the ruler can be kept horizontal all the time in the use process, the reading error caused by the inclination of the ruler is avoided, and the observation accuracy is effectively improved; (3) choose aluminum alloy material for use to thicken the scale part of ruler, on the one hand light in weight and durable have improved the portability and the durability of measuring tape, the error that ruler itself buckled and lead to can be avoided to the scale of on the other hand thickening.

Drawings

FIG. 1 is a schematic structural view of an example of a building inclination measuring auxiliary ruler;

FIG. 2 is a schematic view of the construction of the straightedge of the embodiment;

FIG. 3 is a diagram showing the use of the building inclination measuring auxiliary ruler according to the embodiment.

In the above figures: 1. building inclination measurement auxiliary ruler; 11. a straightedge; 12. clamping and supporting; 13. leveling air bubbles; 2. a reflective sheet; 3. a reference point; 4. tripods and total stations.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings.

Examples

The embodiment provides a building inclination measurement auxiliary ruler, which comprises a straight ruler 11 and a clamping support 12 arranged on the back of the straight ruler 11, as shown in fig. 1. As shown in fig. 2, the front of the ruler 11 is provided with scales, the zero scale mark is arranged in the middle of the ruler, and the scales can be millimeter, the division value is 1mm, and other scales can be selected according to needs.

The back of the straightedge 11 is provided with a card holder 12, as shown in fig. 1, the card holder 12 is in a straight plate shape, is perpendicular to the straightedge 11 and is in a T shape, and the upper surface of the card holder 12 is parallel to the upper surface of the straightedge 11. To facilitate reading, the card holder 12 is arranged at the zero graduation line of the ruler 11.

The building inclination measurement auxiliary ruler 1 is also provided with a leveling bubble 13, and the leveling bubble 13 is preferably arranged at the joint of the clamping support 12 and the straight ruler 11 for adjustment. When the bubble is placed in the middle, the building inclination measurement auxiliary ruler 1 is in a horizontal state.

The material of the auxiliary ruler 1 for measuring the inclination of the building needs to be a material which is not easy to deform, and a light and wear-resistant material such as aluminum alloy is further preferable. The T-shaped connecting part is welded, and the welding position is flush with the scale marks on the front surface of the ruler. In order to further improve the durability of the auxiliary ruler, avoid errors caused by bending the ruler itself, and ensure the portability thereof, the scale portion of the straightedge is thickened, for example, a 400mm long straightedge is 5mm thick. The longer the length of the straightedge, the corresponding increase in thickness should be.

At present, the graduated scale used in measurement is thin and easy to bend, and particularly when the graduated scale is fixed on a wall, because the wall is actually very uneven, the part of the graduated scale attached to the wall is not in contact with the wall, when the graduated scale is fixed, the graduated scale is very easy to deform under stress, and the slight deformation can cause a large error, but the point is always ignored, so that the currently adopted graduated scale is still the traditional graduated scale. The scale is thickened, and the method is the simplest and most effective method for reducing the deformation of the scale.

During measurement, as shown in fig. 3, a worker clamps the building inclination measurement auxiliary ruler 1 on a corner of a building to be measured, the adjustment air bubbles are centered, and the ruler is in a horizontal state at the moment. At this moment, survey crew aligns the center of reflector plate 2 with the nodical point of eyepiece cross silk after 4 centering levellings of total powerstation, then changes the eyepiece to auxiliary ruler 1 department, aligns the ruler scale with the cross silk, and the reading can.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. The auxiliary ruler for measuring the inclination of the building comprises a straight ruler and is characterized in that scales are arranged on the front side of the straight ruler, a zero scale mark is arranged in the middle of the straight ruler, and positive scales and negative scales are respectively arranged on two sides of the zero scale mark; the back of the zero scale mark is provided with a clamping support which is in a straight plate shape and is vertical to the straight ruler to form a T shape; still set up the level bubble on the supplementary chi of building slope measurement, when the bubble is placed in the middle, the supplementary chi of building slope measurement is the horizontality.

2. The building tilt measurement auxiliary ruler of claim 1, wherein the leveling bubble is disposed at a junction of the catch and the straight ruler.

3. The building tilt measurement auxiliary ruler of claim 1, wherein the card holder is welded to the back of the straight ruler.

4. A building tilt measurement auxiliary ruler according to claim 1, wherein the thickness of the straight ruler is 4-8 mm.