CN211121079U - A detection device for detecting the spacing of prefabricated components - Google Patents

Abstract

The utility model relates to a detection device for detecting the distance between prefabricated components, which is used for detecting the distance between two vertical components, the detection device is located between the two vertical components, and the detection device comprises a bracket, a first base and a second base , the first base is connected to the top of the bracket, the second base is connected to the middle of the bracket, both the first base and the second base are provided with laser ranging modules, and each laser ranging module includes a The first laser ranging group and the second laser ranging group, the first laser ranging group and the second laser ranging group are formed with two laser beams in opposite directions, and the two laser beams are respectively directed to a vertical member, and the first laser ranging group is formed. The centers of the ranging group and the second laser ranging group are the same. Compared with the prior art, the utility model has the advantages of high ranging precision, high degree of automation, fast detection, convenient operation and the like.

Description

A detection device for detecting the spacing of prefabricated components

technical field

The utility model relates to the field of distance measurement, in particular to a detection device for detecting the distance between prefabricated components.

Background technique

The distance between two vertical members is defined as the vertical distance between two members at a given height H; the vertical deviation of vertical members is defined as the tangent value of the angle of the member surface deviating from the plumb line.

At present, in the house acceptance work, there is no effective instrument to measure the spacing and verticality of vertical members at the same time. To measure the verticality deviation with a ruler, it is necessary to measure and manually read the two walls to obtain the verticality, which is easy to cause artificial changes and accidental deviations in the process of reading. When measuring the distance between two components, the tape measure and the laser rangefinder need to ensure that the measurement is perpendicular to the wall, which requires high measurement conditions and is not easy to ensure accuracy.

Utility model content

The purpose of the present invention is to provide a detection device for detecting the distance between prefabricated components with convenient operation and high ranging accuracy in order to overcome the above-mentioned defects of the prior art.

The purpose of the present utility model can be achieved through the following technical solutions:

A detection device for detecting the distance between prefabricated members, used for detecting the distance between a first vertical member and a second vertical member, the detection device is located between the first vertical member and the second vertical member, the The detection device includes a support, a first base and a second base, the first base is connected to the top of the support, the second base is connected to the middle of the support, the first base and The second base is provided with a laser ranging module, each laser ranging module includes a first laser ranging group and a second laser ranging group located on the same horizontal plane, the first laser ranging group and the The second laser ranging group includes a first laser ranging instrument and a second laser ranging instrument, and both the first laser ranging group and the second laser ranging group are formed with two laser beams in opposite directions, The two laser beams are directed to the first vertical member and the second vertical member respectively, and the centers of the first laser ranging group and the second laser ranging group are the same.

Further, the vertical distance between the first base and the second base and the vertical distance between the second base and the ground are both the first distance.

Further, the included angle of the straight line where the laser light formed by the first laser ranging group and the second laser ranging group is located is 10 degrees.

Further, a leveling device is provided on both the first base and the second base.

Further, the leveling device includes a plurality of leveling bolts.

Further, both the first base and the second base are provided with a bubble level. Leveling bolts and bubble levels are used to level the base.

Further, the first laser rangefinder and the second laser rangefinder are both unidirectional laser rangefinders.

Further, the ranges of the first laser rangefinder and the second laser rangefinder are both at least 50m, and the accuracy is 1mm.

Compared with the prior art, the utility model has the following advantages:

(1) The utility model is used to detect the distance between the prefabricated components. Considering the influence of the verticality of the vertical components on the distance, the distance between the vertical components and the vertical components is obtained through the two upper and lower laser ranging modules respectively, and then the vertical components are obtained. To the distance between the components at any height, the laser range finder is used to realize the automation of the entire ranging process, avoiding human error, and does not require manual reading and measurement of various instruments, with high ranging accuracy, high degree of automation, and fast detection. , The advantages of convenient operation.

(2) The utility model is used to detect the distance between prefabricated components. Using trigonometric functions, in the laser ranging module, two laser ranging groups with the same position and different directions are set, and the two laser ranging groups are fixed. The included angle of the utility model realizes the effective measurement of the distance between the detection device and the vertical member, and has the advantages of convenient detection and high precision.

(3) The detection equipment of the present invention is used to detect the spacing of prefabricated components. A leveling device and a bubble level are provided on both bases to ensure the level of the bases and further improve the detection accuracy of the detection equipment of the present utility model. .

(4) The detection device of the present invention for detecting the distance between prefabricated components can not only be used to detect the distance between two vertical components, but also can detect the verticality of the vertical components.

Description of drawings

Fig. 1 is the front view of the utility model detection equipment;

Fig. 2 is the top view of the dotted line area of Fig. 1;

Fig. 3 is the first schematic diagram of the utility model ranging principle;

Fig. 4 is the second schematic diagram of the utility model ranging principle;

In the figure, 1, the bracket, 2, the first base, 3, the second base, 4, the laser ranging module, 5, the leveling bolt, 6, the bubble level, 7, the first vertical member, 8, the first Two vertical members.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

Example 1

As shown in FIG. 1 , this embodiment is a detection device for detecting the distance between prefabricated members, for detecting the distance between the first vertical member 7 and the second vertical member 8, and the detection device is located in the first vertical member. 7 and the second vertical member 8, the detection equipment includes a bracket 1, a first base 2 and a second base 3, the first base 2 is connected to the top of the bracket 1, and the second base 3 is connected to the top of the bracket 1. In the middle, the first base 2 and the second base 3 are provided with laser ranging modules 4, and each laser ranging module includes a first laser ranging group and a second laser ranging group located on the same horizontal plane. Both the laser ranging group and the second laser ranging group include a first laser ranging instrument and a second laser ranging instrument, and both the first laser ranging group and the second laser ranging group are formed with two laser beams in opposite directions, The two laser beams are directed to the first vertical member and the second vertical member respectively. In this embodiment, the first base 2 and the second base 3 are both circular bases, and the centers of the first laser ranging group and the second laser ranging group are located at the center of the first base 2 or the second base 3 .

The vertical distance between the first base and the second base and the vertical distance between the second base and the ground are both the first distance. In this embodiment, the first distance is 0.5 meters, and the first base and the second base are located on the bracket at an elevation of 0.5 meters and 1 meter, respectively.

The included angle between the first laser ranging group and the second laser ranging group is 10 degrees.

As shown in FIG. 2 , a leveling device and a bubble level 6 are provided on both the first base and the second base. Both the first base and the second base include a first circular platform and a second circular platform, the second circular platform is arranged concentrically with the first circular platform, the second circular platform is arranged on the first circular platform, and the radius of the second circular platform is smaller than that of the first circular platform The leveling device includes three leveling bolts 5 arranged on the second circular platform. The three leveling bolts are connected in pairs to form an equilateral triangle. The bubble level is set on the first circular platform. Both the first laser ranging group and the second laser ranging group are arranged on the second circular pedestal, and are set based on the center of the second circular pedestal.

The first laser rangefinder and the second laser rangefinder are both unidirectional laser rangefinders, and both have a range of at least 50m and an accuracy of 1mm.

The present embodiment also provides a distance detection method and principle using the above detection equipment, specifically:

Data acquisition step: acquire the measurement values of the eight laser rangefinders on the detection equipment, and the measurement value is the distance from the center of the laser rangefinder to the vertical member;

After the bracket is installed, the horizontal laser rangefinder can be fixed at a certain height (the first distance h). The base is mounted on the bracket for fixing the horizontal laser rangefinder. After the horizontal laser rangefinders are combined in pairs, the emitted lasers are at a fixed angle α. Leveling device and bubble level are used to observe whether the instrument is level and adjust.

Step of calculating the distance: According to the measurement values of the eight laser rangefinders, the distance between the first vertical member and the second vertical member at the height to be measured is calculated by the distance calculation formula.

As shown in Figure 3, through two laser beams with a fixed angle α, taking L ₁ and L ₂ as examples: measure the distances l _1a , l _1b , l _2a , l _2b from the center of the instrument to the wall, and then obtain the distance from the wall to the wall. Vertical distances L ₁ and L ₂ from the center of the instrument. The calculation principle is:

In the formula, a is the first laser ranging group, b is the second laser ranging group, l _1a is the measurement value of the first laser ranging instrument of the first laser ranging group in the first base, and l _1b is the first laser ranging group. The measured value of the first laser rangefinder of the second laser rangefinder group in a base, α is the first included angle, and l _2a is the measurement value of the second laser rangefinder of the first laser rangefinder group in the first base The measured value, l _2b is the measured value of the second laser rangefinder of the second laser rangefinder group in the first base.

As shown in Figure 4, the formula for calculating the spacing is:

In the formula, D is the distance, H is the height to be measured, h is the first distance, L ₁ is the distance value measured by the first base from the first vertical member, and L ₂ is the distance measured by the first base _The distance value _of the second vertical member, L3 is the distance value measured from the second base to the first vertical member, L4 is the distance value measured from the second base to the second vertical member, l _1a is the measurement value of the first laser rangefinder of the first laser rangefinder group in the first base, _11b is the measurement value of the first laser rangefinder of the second laser rangefinder group in the first base, α is the first included angle, _l2a is the measurement value of the second laser rangefinder of the first laser rangefinder group in the first base, _l2b is the second laser rangefinder of the second laser rangefinder group in the first base The measured value of the distance meter, _13a is the measured value of the first laser distance meter of the first laser distance measurement group in the second base, and _13b is the first laser distance measurement of the second laser distance measurement group in the second base. The measured value of the distance meter, _14a is the measured value of the second laser distance meter of the first laser distance measurement group in the second base, and _14b is the second laser distance measurement of the second laser distance measurement group in the second base. distance meter measurement.

The detection device used for detecting the spacing of prefabricated components in this embodiment can also perform verticality detection, specifically:

Steps for calculating the verticality of the first vertical member: According to the measurement values of the eight laser rangefinders, the verticality of the first vertical member is calculated by the formula for calculating the verticality of the first vertical member, and the formula for calculating the verticality of the first vertical member is for:

In the formula, P ₁ is the verticality of the first vertical member, h is the first distance, l _1a is the measurement value of the first laser range finder of the first laser ranging group in the first base, and l _1b is the first laser range finder. The measured value of the first laser rangefinder of the second laser rangefinder group in a base, α is the first included angle, and _l3a is the measurement value of the first laser rangefinder of the first laser rangefinder group in the second base Measured value, _13b is the measured value of the first laser rangefinder of the second laser rangefinder group in the second base;

The step of calculating the verticality of the second vertical member: according to the measurement values of the eight laser rangefinders, the verticality of the second vertical member is calculated by the calculation formula of the verticality of the second vertical member, and the calculation formula of the verticality of the second vertical member is for:

In the formula, P ₂ is the verticality of the first vertical member, h is the first distance, α is the first included angle, and l _2a is the second laser rangefinder of the first laser rangefinder group in the first base. The measured value, _l2b is the measurement value of the second laser rangefinder of the second laser rangefinder group in the first base, _l4a is the measurement value of the second laser rangefinder of the first laser rangefinder group in the second base The measured value, l _4b is the measured value of the second laser rangefinder of the second laser rangefinder group in the second base.

The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative efforts. Therefore, any technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the present invention shall fall within the protection scope determined by the claims. .

Claims (8)

1. A detection device for detecting the distance between prefabricated members, for detecting the distance between a first vertical member (7) and a second vertical member (8), wherein the detection device is located in the first vertical member (8). Between the vertical member (7) and the second vertical member (8), the detection device comprises a bracket (1), a first base (2) and a second base (3), the first base (2) ) is connected to the top of the bracket (1), the second base (3) is connected to the middle of the bracket (1), the first base (2) and the second base (3) ) are provided with a laser ranging module (4), each laser ranging module includes a first laser ranging group and a second laser ranging group located on the same horizontal plane, the first laser ranging group and the Each of the two laser ranging groups includes a first laser ranging instrument and a second laser ranging instrument, and the first laser ranging group and the second laser ranging group are formed with two laser beams in opposite directions. The lasers are directed to the first vertical member and the second vertical member, respectively, and the centers of the first laser ranging group and the second laser ranging group are the same. 2. A detection device for detecting the distance between prefabricated components according to claim 1, wherein the vertical distance between the first base (2) and the second base (3) is the same as the distance between the first base (2) and the second base (3). The vertical distance between the second base (3) and the ground is the first distance. 3 . The detection device for detecting the distance between prefabricated components according to claim 1 , wherein the first laser ranging group and the second laser ranging group form a clip of a straight line where the laser is located. 4 . The angle is 10 degrees. 4. A detection device for detecting the distance between prefabricated components according to claim 1, characterized in that, both the first base (2) and the second base (3) are provided with leveling device. 5. A detection device for detecting the distance between prefabricated components according to claim 4, wherein the leveling device comprises a plurality of leveling bolts (5). 6. A detection device for detecting the distance between prefabricated components according to claim 4, wherein a bubble level is provided on both the first base (2) and the second base (3) (6). 7 . The detection device for detecting the distance between prefabricated components according to claim 1 , wherein the first laser distance meter and the second laser distance meter are both unidirectional laser distance meters. 8 . 8 . The detection device for detecting the distance between prefabricated components according to claim 1 , wherein the ranges of the first laser range finder and the second laser range finder are both at least 50m, and the accuracy is 1mm. 9 . .

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