CN108663021B - Building wall perpendicularity detection device and detection method using same - Google Patents
Building wall perpendicularity detection device and detection method using same Download PDFInfo
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- CN108663021B CN108663021B CN201810961547.6A CN201810961547A CN108663021B CN 108663021 B CN108663021 B CN 108663021B CN 201810961547 A CN201810961547 A CN 201810961547A CN 108663021 B CN108663021 B CN 108663021B
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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Abstract
The invention discloses a building wall perpendicularity detection device and a detection method using the device, wherein the device comprises a laser range finder, a movable frame and a test board which is higher than the bottom of the movable frame and is rotationally connected with the movable frame, the laser range finder is rotationally connected with the test board, the upper surface of the test board is vertically and fixedly connected with an installation column, the installation column is connected with a sliding block in a sliding mode along the length direction of the installation column, the center of the laser range finder is rotationally connected with the sliding block, the bottom of the laser range finder abuts against the upper surface of the test board, and an emission point of the laser range finder is suspended outside. The invention provides a building wall perpendicularity detection device and a detection method using the device, which can be used for conveniently detecting the perpendicularity of a wall.
Description
Technical Field
The invention relates to the field of building detection, in particular to a method for detecting the perpendicularity of a building wall.
Background
When detecting building earthquake resistance, the staff can carry out the straightness's that hangs down detection to the building.
At present, a simple detection method is usually adopted, as shown in fig. 4, a wall 16 is built on the ground, during the detection process, a worker vertically places a laser range finder 1 on the ground on one side of the wall 16, utilizes the laser range finder 1 to emit a beam of laser upwards, synchronously, another worker horizontally places a transparent glass plate 18 on the upper end surface of the wall 16, the laser penetrates through the glass plate 18 to form a laser spot on the surface of the glass plate, the worker above utilizes a ruler to measure the distance between the laser spot and the upper end of the wall 16, the distance is recorded as L', the worker below measures the distance between the bottom of the wall 16 and the central point of the laser range finder 1, the distance is recorded as L, the vertical height between the glass plate 18 and the ground where the laser range finder 1 is placed is recorded as a, and the inclination angle of the wall 16 is defined as theta at this time, then, the tilt angle of the wall 16 can be calculated from tan θ = (L-L')/a.
However, in most of the existing buildings, a platform protrudes from the upper end of the wall, and due to the obstruction of the platform, the laser spot cannot be found by using a transparent glass plate as in the above detection method, so that it is difficult to obtain a better detection result.
Disclosure of Invention
The invention aims to provide a building wall perpendicularity detection device, which is convenient for detecting the perpendicularity of a wall with a platform at the upper end.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a building wall straightness detection device that hangs down, includes laser range finder, still including removing the frame, be higher than remove the frame bottom and rotate to connect in the testboard that removes the frame, laser range finder rotates to be connected in the testboard.
By adopting the technical scheme, the movable frame is placed on the ground on one side of the wall body to be measured, the laser range finder is kept vertical, a beam of laser is emitted, the distance between the lower bottom surface of the platform and the upper surface of the test platform is recorded as c', then the vertical distance between the bottom end of the wall body and the central line of the laser range finder is measured as L, the test platform is rotated, a laser point emitted by the laser range finder is superposed on the intersecting line between the upper end of the wall body and the platform, the test platform is kept stable and fixed, the laser range finder is rotated by 180 degrees to form a laser point on the ground, the vertical distance between the laser point and the vertical line passing through the rotating center of the test platform is measured as b, meanwhile, the vertical distance between the upper surface of the test platform and the ground is recorded as c, at the moment, a similar triangle is utilized to calculate that the distance between the first laser point and the upper end of, and finally obtaining the inclination angle of the wall according to tan theta = (L-L')/a, wherein a is the vertical distance between the lower bottom surface of the platform and the ground.
The invention is further configured to: the movable frame is fixed with and is the horizontally connecting axle, the testboard cover is established and free rotation connects in the connecting axle, the connecting axle is located the equal threaded connection in testboard both sides and has the clamping sleeve.
Through adopting above-mentioned technical scheme, make the testboard rotate to be connected in the connecting axle, be convenient for rotate whole testboard in the measurement process, after the laser point and the intersection line coincidence of platform and wall body upper end as laser range finder simultaneously, rotate two clamping sleeves and fix the testboard to make things convenient for subsequent operation.
The invention is further configured to: the perpendicular fixedly connected with erection column of testboard upper surface, the erection column slides along its length direction and is connected with the slider, laser range finder center rotates and connects in the slider, laser range finder bottom is contradicted in testboard upper surface and its launch point and is hung outside the testboard.
Through adopting above-mentioned technical scheme, in the test process, can contradict laser range finder's bottom in the upper surface of testboard, promote the accuracy of measured data, and simultaneously, when laser range finder is rotated to needs, with one section distance of laser range finder rebound, and then rotate laser range finder 180 degrees smoothly, conflict laser range finder lapse in the upper surface of testboard again, make laser range finder can jet out laser downwards, and laser range finder's laser emission point hangs in the outside of testboard, thereby make this laser point can beat the bottom surface, the staff of being convenient for measures the distance between this laser point and laser range finder's the central line. .
The invention is further configured to: the sliding block is in threaded connection with a locking bolt tightly abutted against the side wall of the mounting column.
Through adopting above-mentioned technical scheme, utilize the locking bolt can be with slider and erection column relatively fixed to make laser range finder be difficult to take place to rotate and slide from top to bottom, make laser range finder remain stable in the measurement process.
The invention is further configured to: the upper end and the bottom end of the laser range finder are integrally formed with a limiting plate capable of abutting against the upper surface of the test board.
Through adopting above-mentioned technical scheme, utilize the limiting plate to make laser range finder keep inconsistent with testboard upper surface in the measurement process, and then make laser range finder's central line keep being perpendicular with the upper surface of testboard, promote the measuring accuracy.
The invention is further configured to: the lateral wall of the test board is provided with an arc-shaped angle graduated scale.
Through adopting above-mentioned technical scheme, utilize the angle scale can read out whole testboard pivoted angle in the measurement process, be convenient for to the record of survey data.
The invention is further configured to: the bottom of the movable frame extends to form a distance measuring plate which is perpendicular to the wall and is provided with scales.
Through adopting above-mentioned technical scheme, utilize the range finder board can directly read out the distance between laser range finder central line and the wall body bottom, synchronous, just can directly read out the distance between this laser point and the laser range finder central line when the laser point of laser range finder hits the range finder board.
The invention is further configured to: the connecting shaft is connected to the upper end of the test bench, and a heavy object used for keeping the surface of the test bench horizontal under the condition of no external force is arranged in the test bench.
Through adopting above-mentioned technical scheme, utilize the inside heavy object of testboard, can rely on the effect of heavy object to move down the focus of testboard, make under the natural state of no external force, rely on the action of gravity, make the testboard upper surface be the level, and then when the ground unevenness, can still keep laser range finder to be vertical state under operating condition, promote measuring accuracy.
The invention also aims to provide a detection method using the building wall perpendicularity detection device, which is convenient for detecting the perpendicularity of the wall.
The technical purpose of the invention is realized by the following technical scheme: a detection method using a building wall perpendicularity detection device comprises the following steps:
step A: placing the movable frame on one side of the wall to be tested, abutting one end of the ranging plate against the side wall of the wall to be tested, keeping the upper surface of the test board horizontal, abutting a limiting plate of the laser range finder against the upper surface of the test board, operating the laser range finder to emit a beam of laser upwards, recording the vertical distance between the bottom surface of the platform and the upper surface of the test board as c1, and defining the vertical distance between the upper surface of the test board and the center of the connecting shaft as c2, and the sum of c1 and c2 as c ', and defining the vertical distance between the laser point and the upper end of the wall as L';
and B: recording the vertical distance between the center of the connecting shaft and the upper surface of the ranging plate as c;
and C: rotating the test board to enable a laser point emitted by the laser range finder to coincide with the intersection line of the platform and the upper end of the wall body, fixing the test board by rotating the clamping sleeve, moving the laser range finder upwards and rotating the laser range finder by 180 degrees, then moving the laser range finder downwards to enable the limiting plate to abut against the upper surface of the test board, operating the laser range finder to emit a laser beam obliquely downwards, reading the distance between the laser point on the range board and the center of the range board, recording the distance as b, and calculating L '= bc'/c according to the similar triangle;
step D: reading the distance L between a vertical line passing through the center of the test board and the bottom end of the wall body by using a distance measuring board;
step E: vertically placing another laser range finder on the upper surface of the range finding plate, emitting a laser beam upwards, reading out the numerical value on the laser range finder, and setting the vertical distance between the lower bottom surface of the platform and the upper surface of the range finding plate as a;
step F: defining the inclination angle of the wall as theta, and finally obtaining the inclination angle of the wall by calculation according to tan theta = (L-L')/a.
By adopting the technical scheme, a worker can calculate the distance of the L' to be measured at the upper end of the wall body on the ground through the steps of the method, so that the testing process is simplified, the whole measuring process is more convenient, and the measuring efficiency and the measuring precision are improved.
In conclusion, the invention has the following beneficial effects:
one is as follows: by utilizing the rotatable test board and the liftable and rotatable laser range finder, the distance L' to be measured at the upper end of the wall body can be transferred to the distance b on the ground by the principle of a similar triangle in the measuring process, so that the measuring process is simplified, and the verticality of the wall surface can be conveniently measured;
the second step is as follows: under the condition that no external force exists in the natural state, the weight close to the bottom inside the test board can be utilized to realize that the upper surface is horizontal, so that the central line of the laser range finder is vertical, and the accuracy of measured data is improved.
Drawings
FIG. 1 is a schematic structural diagram of the first embodiment;
FIG. 2 is a cross-sectional view of the first embodiment;
FIG. 3 is a second schematic view of the present embodiment;
fig. 4 is a prior art schematic.
Reference numerals: 1. a laser range finder; 2. a movable frame; 3. a test bench; 4. a connecting shaft; 5. a clamping sleeve; 6. mounting a column; 61. a chute; 62. a locking groove; 7. a slider; 8. locking the bolt; 9. a limiting plate; 10. an angle scale; 11. a distance measuring plate; 12. a weight; 13. a level gauge; 14. a reinforcing plate; 15. a pointer; 16. a wall body; 17. a platform; 18. a glass plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the utility model provides a building wall straightness detection device that hangs down, refer to fig. 1, including one remove frame 2, can remove frame 2 and remove to corresponding wall body 16 one side when the wall body 16 of test difference, it is connected with a testboard 3 to rotate on removing frame 2, under the condition of natural state no external force, the upper surface of testboard 3 is the level, and 3 upper surfaces at testboard inlay the spirit level 13 or the level bar that is equipped with a 3 angles of adjustment testboard of being convenient for, be provided with the laser range finder 1 that is used for carrying out the range finding at the upper surface of testboard 3, it can change the launch angle of laser range finder 1 to rotate testboard 3, and then change the distance between wall body 16 upper end and the 1 central line of laser range finder into subaerial distance according to the proportion, make things convenient for.
The cross-section of the moving frame 2 is L-shaped, and triangular reinforcing plates 14 are welded on two sides of the moving frame 2, so that pulleys can be mounted at the bottom of the moving frame 2 for convenient movement.
Combine fig. 1 and fig. 2 to show, fixed welding has one to be horizontally connecting axle 4 on the vertical lateral wall of removal frame 2, and the cover is established and is rotated on connecting axle 4 and is connected with a testboard 3 that is used for the installation to place laser range finder 1, and testboard 3 is the halfcylinder to testboard 3's plane is up, and the circular arc face is down. The connecting shaft 4 is arranged on the central line of the test board 3 in a penetrating manner, close to the upper surface and in the width direction of the test board 3, in order to keep the upper surface of the test board 3 horizontal in a natural state and under the condition of no external force, the part of the interior of the test board 3 close to the upper end surface is hollowed, and a heavy object 12 is filled in the position of the bottom of the test board 3 or a weighted part is integrally formed, so that the gravity center of the whole test board 3 is positioned at the bottommost part of the test. In the measuring process, the upper surface of the test bench 3 can still be kept horizontal in the state of uneven or inclined ground, and the laser range finder 1 is kept more accurate in measuring. And in order to fix the position of testboard 3, wear to locate the equal threaded connection in both ends of testboard 3 at connecting axle 4 and have a clamping sleeve 5, rotate two clamping sleeve 5 can rely on and play fixed effect to testboard 3 lateral wall between the frictional force.
In order to facilitate the rotation of the laser range finder 1 in the measuring process, an installation column 6 perpendicular to the upper surface of the test platform 3 is fixedly welded on a central line of one end, far away from the vertical side wall of the moving frame 2, of the test platform 3, a sliding groove 61 parallel to the height direction of the installation column 6 is formed in the side wall of the installation column 6, a sliding block 7 used for installing the laser range finder 1 is embedded in the sliding groove 61 and connected in a sliding mode, a locking bolt 8 is connected to each of the two side walls of the sliding block 7 in a threaded mode, in order to fix the position of the sliding block 7 in the using process, locking grooves 62 parallel to the sliding groove 61 are formed in the two side walls, opposite to the installation column 6, the locking bolt 8 penetrates through the locking grooves 62, and when the fixing is needed, the locking bolt 8 is rotated, and the end of the locking bolt 8 is tightly abutted to the side wall.
The central position department of the lateral wall of laser range finder 1 rotates and connects in slider 7, and after the installation, the launch point of laser range finder 1 hangs outside testboard 3, then under vertical projection, the launch point of laser range finder 1 is not in the plane of projection of testboard 3, in order to keep laser range finder 1 perpendicular to the upper surface of testboard 3 in the test process, position homogeneous body shaping limiting plate 9 near the upper end and near the bottom at laser range finder 1 lateral wall, limiting plate 9 of laser range finder 1 upper end is the coplanar setting with laser range finder 1 upper end, limiting plate 9 of laser range finder 1 lower extreme is the coplanar setting with laser range finder 1 lower floor, and when laser range finder 1 descends, limiting plate 9 can contradict in the upper surface of testboard 3.
The lower part integrated into one piece that is located laser range finder 1 bottom removing frame 2 has range finder plate 11 of perpendicular to wall body 16, and the upper surface of range finder plate 11 is provided with the scale, and range finder plate 11 uses the vertical line in center of testboard 3 to be bilateral symmetry as the center to set up the center of range finder plate 11 to 0 scale, and increase progressively to both ends respectively, the length of range finder plate 11 is greater than the whole width that removes frame 2. In order to determine the rotation angle of the test stand 3, an angle scale 10 is provided on the side wall of the test stand 3 along its arc, and a pointer 15 indicating the angle scale 10 is vertically provided on the bottom plate of the moving frame 2.
Example two:
a detection method using a building wall perpendicularity detection device is shown by combining a figure 1, a figure 2 and a figure 3, and comprises the following steps:
step A: placing the movable frame 2 on one side of a wall body 16 to be tested, abutting one end of a distance measuring plate 11 against the side wall of the bottom of the wall body 16 to be tested, keeping the upper surface of the test board 3 horizontal under the natural state without external force, abutting a limiting plate 9 at the bottom of the laser distance measuring instrument 1 against the upper surface of the test board 3, operating the laser distance measuring instrument 1 to emit a beam of laser upwards, wherein the vertical distance between the bottom surface of the recording platform 17 and the upper surface of the test board 3 is c1, the vertical distance between the upper surface of the test board 3 and the center of the connecting shaft 4 is c2, and the sum of c1 and c2 is c', and defining the vertical distance between the laser point and the upper end of the wall body 16;
and B: recording the vertical distance between the center of the connecting shaft 4 and the upper surface of the ranging plate 11 as c;
and C: rotating the test board 3 to enable a laser point emitted by the laser range finder 1 to coincide with the intersection line of the platform 17 and the upper end of the wall 16, fixing the test board 3 by rotating the clamping sleeve 5, moving the laser range finder 1 upwards, rotating the laser range finder 1 by 180 degrees, moving the laser range finder 1 downwards again to enable the limiting plate 9 to abut against the upper surface of the test board 3, operating the laser range finder 1 to emit a beam of laser obliquely downwards, reading the distance between the laser point on the range board 11 and the center of the range board 11, recording the distance as b, and calculating L '= bc'/c according to a similar triangle;
step D: reading out the distance L between a vertical line passing through the center of the test bench 3 and the bottom end of the wall 16 by using the distance measuring plate 11;
step E: another laser range finder 1 is vertically arranged on the upper surface of the range finding plate 11, a laser beam is emitted upwards, the numerical value on the laser range finder 1 is read, and the vertical distance between the lower bottom surface of the platform 17 and the upper surface of the range finding plate 11 is a;
step F: the inclination angle of the wall 16 is defined as θ, and the inclination angle of the wall 16 is finally obtained by calculation according to tan θ = (L-L')/a.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a building wall straightness detection device that hangs down, includes laser range finder (1), characterized by: the laser range finder is characterized by further comprising a moving frame (2) and a test board (3) which is higher than the bottom of the moving frame (2) and is rotatably connected to the moving frame (2), and the laser range finder (1) is rotatably connected to the test board (3); a horizontal connecting shaft (4) is fixed on the movable frame (2), the test board (3) is sleeved and freely and rotatably connected with the connecting shaft (4), and clamping sleeves (5) are in threaded connection with the connecting shaft (4) at two sides of the test board (3); the upper surface of the test board (3) is vertically and fixedly connected with an installation column (6), the installation column (6) is connected with a sliding block (7) in a sliding mode along the length direction of the installation column, the center of the laser range finder (1) is rotatably connected to the sliding block (7), the bottom of the laser range finder (1) abuts against the upper surface of the test board (3), and an emission point of the laser range finder is suspended outside the test board (3); the upper end of the laser range finder (1) and the bottom end of the laser range finder are integrally formed with a limiting plate (9) which can abut against the upper surface of the test board (3).
2. The building wall perpendicularity detecting device as claimed in claim 1, wherein: the sliding block (7) is in threaded connection with a locking bolt (8) which is tightly propped against the side wall of the mounting column (6).
3. The building wall perpendicularity detecting device as claimed in claim 2, wherein: the side wall of the test bench (3) is provided with an arc-shaped angle scale (10).
4. The building wall perpendicularity detecting device as claimed in claim 3, wherein: the bottom of the movable frame (2) extends to form a distance measuring plate (11) which is vertical to the wall body (16) and is provided with scales.
5. The building wall perpendicularity detecting device as claimed in claim 4, wherein: the connecting shaft (4) is connected to the upper end of the test bench (3), and a heavy object (12) used for keeping the surface of the test bench (3) horizontal under the condition of no external force is arranged in the test bench (3).
6. A detection method using the building wall perpendicularity detection device as claimed in claim 5, wherein the detection method comprises the following steps: the method comprises the following steps:
step A: placing a moving frame (2) at one side of a wall body (16) to be tested, abutting one end of a ranging plate (11) against the side wall of the wall body (16) to be tested, keeping the upper surface of a test table (3) horizontal, abutting a limiting plate (9) at the bottom of a laser range finder (1) against the upper surface of the test table (3), operating the laser range finder (1) to emit a beam of laser upwards and form a laser spot, wherein the vertical distance between the bottom surface of a recording platform (17) and the upper surface of the test table (3) is c1, the vertical distance between the upper surface of the test table (3) and the center of a connecting shaft is c2, and the sum of c1 and c2 is c', and the vertical distance between the laser spot and the upper end of the wall body (16) is defined to be L;
and B: recording the vertical distance between the center of the connecting shaft (4) and the upper surface of the ranging plate (11) as c;
and C: rotating the test board (3) to enable a laser point emitted by the laser range finder (1) to coincide with an intersection line of the platform (17) and the upper end of the wall body (16), fixing the test board (3) by the aid of the rotary clamping sleeve (5), moving the laser range finder (1) upwards, rotating the laser range finder (1) by 180 degrees, moving the laser range finder (1) downwards to enable the limiting plate (9) to abut against the upper surface of the test board (3), operating the laser range finder (1) to emit a laser beam obliquely downwards, reading the distance between the laser point on the ranging board (11) and the center of the ranging board (11), recording the distance as b, and calculating L '= bc'/c according to a similar triangle;
step D: reading the distance L between a vertical line passing through the center of the test board (3) and the bottom end of the wall body (16) by using the ranging board (11);
step E: another laser range finder (1) is vertically arranged on the upper surface of the range finding plate (11), a laser beam is emitted upwards, the numerical value on the laser range finder (1) is read, and the vertical distance between the lower bottom surface of the platform (17) and the upper surface of the range finding plate (11) is a;
step F: the inclination angle of the wall (16) is defined as theta, and the inclination angle of the wall (16) is finally obtained through calculation according to tan theta = (L-L')/a.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109827621A (en) * | 2019-03-22 | 2019-05-31 | 安徽徽宁电器仪表集团有限公司 | A kind of suspended body flowmeter |
| CN111238456B (en) * | 2020-03-05 | 2022-04-12 | 北京崇建工程有限公司 | Measuring tool and measuring method |
| CN111397545A (en) * | 2020-03-11 | 2020-07-10 | 广东博智林机器人有限公司 | Wall surface flatness and verticality measuring equipment and method |
| CN111928830B (en) * | 2020-07-31 | 2022-03-18 | 中铁大桥局武汉桥梁特种技术有限公司 | Device and method for detecting verticality of column type structure |
| CN112363174B (en) * | 2020-11-24 | 2023-01-03 | 袁淑芳 | Building wall scale distance device |
| CN113218377B (en) * | 2021-06-03 | 2023-05-30 | 扬州工业职业技术学院 | Vertical measuring device and method for building wall |
| CN116164718B (en) * | 2023-02-15 | 2024-08-20 | 中建钢构工程有限公司 | Verticality measuring method |
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