Laser distance measuring device for measuring gradient and deflection and measuring method thereof

Abstract

The invention belongs to the technical field of detection equipment, and provides a laser distance measuring device for measuring inclination and deflection and a measuring method thereof.The device comprises a support, a shell, a rotating rod, a first laser distance measuring sensor, a second laser distance measuring sensor, an angle sensor and a processing module, one end of the rotating rod is rotatably installed on the shell, the other end of the rotating rod can rotate around the shell in a vertical plane to a designated position, the first laser distance measuring sensor is arranged in the shell, the second laser distance measuring sensor is arranged on the rotating rod, and the angle sensor is arranged on the rotating rod. The angle sensor is arranged in the shell and used for collecting included angle information between the first laser distance measuring sensor and the second laser distance measuring sensor, and the processing module is arranged in the shell and used for receiving information collected by the first laser distance measuring sensor, the second laser distance measuring sensor and the angle sensor and calculating the gradient or deflection according to the received information. The device is simple in structure, and can measure the inclination and deflection of the component.

Description

Technical Field

[0001] The invention belongs to the technical field of detection equipment, and in particular relates to a laser distance measuring device for measuring inclination and deflection, a component inclination measuring method, a component deflection measuring method and a cantilever beam deflection measuring method. Background Art

[0002] At present, when measuring the inclination of buildings and the deflection of components in structural inspection and appraisal, it is usually only done with the help of a total station. The total station is generally composed of a coaxial telescope, an angle measurement system, a distance measurement system, a computer system, a display screen and a keyboard. It is mainly used in precision engineering measurement or deformation monitoring fields such as large-scale above-ground buildings and underground tunnel construction. The instrument is large in size, high in cost, and not conducive to carrying and transportation. Measurement activities cannot be carried out in restricted environments. At present, there is no small-sized and simple-structured measuring instrument on the market to measure the inclination of buildings and the deflection of components. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a laser distance measuring device for measuring inclination and deflection, a component inclination measuring method, a component deflection measuring method and a cantilever beam deflection measuring method.

[0004] The technical solution adopted by the present invention to solve its technical problem is to provide a laser ranging device for measuring inclination and deflection, the device comprising a bracket, a shell, a rotating rod, a first laser ranging sensor, a second laser ranging sensor, an angle sensor and a processing module, the shell is installed on the top of the bracket, one end of the rotating rod is rotatably installed on the shell, and the other end can be rotated around the shell in a vertical plane to a specified position, the first laser ranging sensor is arranged in the shell, and is used to emit and receive horizontal laser outside the shell, the second laser ranging sensor is arranged on the rotating rod, and is used to emit and receive laser in a vertical plane, the angle sensor is arranged on the rotating rod, and is used to collect angle information between the first laser ranging sensor and the second laser ranging sensor, and the processing module is arranged in the shell, and is used to receive information collected by the first laser ranging sensor, the second laser ranging sensor and the angle sensor, and calculate the inclination or deflection according to the received information.

[0005] Optionally, the shell and the bracket are detachably mounted.

[0006] Optionally, the rotating rod is in an L-shape that can fit with adjacent two side walls of the shell.

[0007] Optionally, the device further comprises an operating keyboard arranged on the shell, the operating keyboard comprising a power switch button, a direction button area and a function button area, the function button area comprising a measurement button, a calculation button, an inclination button and a deflection button.

[0008] Accordingly, the present invention also provides a method for measuring the inclination of a component based on the above-mentioned laser distance measuring device for measuring inclination and deflection, comprising the following steps:

[0009] When the housing is located in the middle of the component and the laser emitted by the second laser ranging sensor is projected onto the upper end of the component, the first laser ranging sensor collects the horizontal distance information L between it and the component. b , the second laser ranging sensor collects the first distance information La between it and the upper end of the component, and the angle sensor collects the first angle information α between the first laser ranging sensor and the second laser ranging sensor when measuring the upper end of the component;

[0010] Rotate the rotating rod, and when the laser emitted by the second laser distance measuring sensor hits the lower end of the component, the second laser distance measuring sensor collects the second distance information L between it and the lower end of the component. d , the angle sensor collects the second angle information β between the first laser ranging sensor and the second laser ranging sensor at the lower end of the measuring member;

[0011] Processing module according to L b , L a ,α,L d , β Calculate the component inclination

[0012] Optionally, the processing module is based on L b , La, α, L d , β Calculate the inclination of the component Including calculating according to a slope formula, the slope formula includes:

[0013] in, is the inclination angle of the component, is the inclination rate, Lc is the distance between the laser points emitted by the two laser ranging sensors on the component plane when measuring the upper end of the component, based on the cosine theorem, Le is the distance between the laser points emitted by the two laser ranging sensors on the plane of the component when measuring the lower end of the component.

[0014] Optionally, the calculation according to the inclination formula includes:

[0015] When the tilt button is detected to be triggered, the tilt formula is called;

[0016] When the measurement button is detected to be triggered, the first laser distance sensor collects the horizontal distance information L between it and the component. bThe second laser ranging sensor collects the first distance information La between it and the upper end of the component and the second distance information L between it and the lower end of the component d The angle sensor collects the first angle information between the first laser ranging sensor and the second laser ranging sensor when the measuring member is at the upper end, and the second angle information β between the first laser ranging sensor and the second laser ranging sensor when the measuring member is at the lower end;

[0017] When the calculation button is triggered, the component inclination is calculated.

[0018] Correspondingly, the present invention also provides a component deflection measurement method based on the above-mentioned laser distance measuring device for measuring inclination and deflection, comprising the following steps:

[0019] When the laser emitted by the second laser distance measuring sensor hits the bottom of the left end of the component, the second laser distance measuring sensor collects the first distance information L between it and the left end of the component. Ⅰ , the angle sensor collects the first angle information θ1 between the first laser distance sensor and the left end of the measuring member and the second laser distance sensor;

[0020] The housing is rotated horizontally. When the laser emitted by the second laser distance measuring sensor hits the bottom of the middle end of the component, the second laser distance measuring sensor collects the second distance information L between it and the middle end of the component. Ⅱ , the angle sensor collects first angle information θ2 between the first laser distance measuring sensor and the second laser distance measuring sensor at the middle end of the measuring component;

[0021] The housing is rotated horizontally. When the laser emitted by the second laser distance measuring sensor hits the bottom of the right end of the component, the second laser distance measuring sensor collects the third distance information L between it and the right end of the component. Ⅲ , the angle sensor collects the third angle information θ3 between the first laser ranging sensor and the second laser ranging sensor at the right end of the measuring member;

[0022] The processing module calculates the component deflection according to the deflection formula The deflection formula includes

[0023] Optionally, the method comprises the following steps:

[0024] The processing module calculates the component deflection according to the deflection formula, including:

[0025] When the deflection button is detected to be triggered, the deflection formula is called;

[0026] When the measurement button is detected to be triggered, the second laser distance measuring sensor collects the first distance information L between it and the left end of the component. ⅠThe angle sensor collects the first angle information θ1 between the first laser distance sensor and the left end of the measuring component, and the second laser distance sensor collects the second distance information L between it and the middle end of the component. Ⅱ The angle sensor collects the first angle information θ2 between the first laser distance sensor and the middle end of the measuring component, and the second laser distance sensor collects the third distance information L between it and the right end of the component. Ⅲ , the angle sensor collects the third angle information θ3 between the first laser ranging sensor and the second laser ranging sensor at the right end of the measuring member;

[0027] When the calculation button is triggered, the component deflection is calculated.

[0028] Correspondingly, the present invention also provides a cantilever beam deflection measurement method based on the above-mentioned laser distance measuring device for measuring inclination and deflection, comprising the following steps:

[0029] When the laser emitted by the second laser ranging sensor hits the bottom of the cantilever end of the cantilever beam, the second laser ranging sensor collects the first distance information L between it and the cantilever end of the cantilever beam. Ⅳ , the angle sensor collects the first angle information θ4 between the first laser distance sensor and the second laser distance sensor when measuring the cantilever end of the cantilever beam;

[0030] The housing is rotated horizontally. When the laser emitted by the second laser distance measuring sensor hits the bottom of the fixed end of the cantilever beam, the second laser distance measuring sensor collects the second distance information L between it and the fixed end of the cantilever beam. Ⅴ , the angle sensor collects the first angle information θ5 between the first laser ranging sensor and the second laser ranging sensor when measuring the fixed end of the cantilever beam;

[0031] The processing module calculates the component deflection Δ according to the deflection formula, wherein the deflection formula includes Δ=L Ⅴ ·sinθ5-L Ⅳ ·sinθ4.

[0032] The beneficial effects of the present invention are as follows: the laser distance measuring device for measuring inclination and deflection provided by the present invention has a simple structure and a small size, and can carry out inclination and deflection measurement activities without being restricted by the environment. The present invention supports the entire device on a foundation through a bracket, and arranges a first laser distance measuring sensor in a shell for collecting distance information in the horizontal direction, and arranges a rotatable rotating rod on the shell, and arranges a second laser distance measuring sensor on the rotating rod. The rotating rod can be rotated to allow the second laser distance measuring sensor to collect distance information between different positions of the component, and an angle sensor is arranged on the rotating rod to collect angle information between the two laser distance measuring sensors. The inclination or deflection of the component can be automatically calculated by arranging a processing module in the shell. The present invention can ensure that the position of the measurement starting point remains unchanged when measuring the size of an object by arranging two laser distance measuring sensors that can rotate relative to each other, thereby improving the measurement accuracy. Moreover, the present invention has the characteristics of small size, low cost, easy to carry, simple operation, and powerful functions, and is not restricted by the environment, thereby reducing the detection cost and difficulty and improving the detection efficiency.

[0033] Accordingly, the present invention also provides a method for measuring the inclination of a component, which is based on the above device and only requires rotating the rotating rod once to collect data L b , La, α, L d , β, and automatically calculate the inclination of the component. The operation is very simple and reliable.

[0034] Correspondingly, the present invention also provides a component deflection measurement method, which is based on the above device, by rotating the rotating rod and horizontally rotating the housing, so that the laser point emitted by the second laser ranging sensor can be projected on the left bottom, middle bottom, and right bottom of the component, so as to collect data L Ⅰ ,θ1,L Ⅱ ,θ2,L Ⅲ , θ3, automatically calculate the component deflection, the operation is very simple and reliable.

[0035] Correspondingly, the present invention also provides a cantilever beam deflection measurement method, which is based on the above device, by rotating the rotating rod and horizontally rotating the housing, so that the laser point emitted by the second laser ranging sensor can be projected on the bottom of the cantilever end and the bottom of the fixed end of the cantilever beam, so as to collect data L Ⅳ ,θ4,L Ⅴ , θ5, automatically calculate the component deflection, the operation is very simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0037] Figure 1 It is a structural schematic diagram of a laser distance measuring device for measuring inclination and deflection provided by the present invention;

[0038] Figure 2 is a structural schematic diagram of an embodiment of the present invention when the rotating rod is rotated to the side of the housing;

[0039] Figure 3 is a schematic diagram of the back structure of the housing when the rotating rod is rotated to the side of the housing in an embodiment of the present invention;

[0040] Figure 4 is a schematic structural diagram of a bracket in an embodiment of the present invention;

[0041] Figure 5 is a schematic diagram of the structure of a control module in an embodiment of the present invention;

[0042] Figure 6 It is a schematic diagram of the working principle of the component inclination measurement method provided by the present invention;

[0043] Figure 7 It is a schematic diagram of the working principle of the component deflection measurement method provided by the present invention;

[0044] Figure 8 It is a schematic diagram of the working principle of the cantilever member deflection measurement method provided by the present invention;

[0045] Fig. 9 It is a schematic diagram of the working principle of the present invention when measuring the distance between two points.

[0046] In the figure: 1-housing; 2-bracket; 3-measurement object; 4-first laser distance sensor; 5-second laser distance sensor; 6-angle sensor; 7-line laser; 8-operation keyboard; 9-display screen; 10-rotating rod; 11-circular level; 12-bar level; 13-battery compartment cover; 14-slide cover; 15-fixed support; 16-locker. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "multiple" and "several" mean two or more.

[0050] Combine the following Figure 1-Figure 9 The invention describes a laser distance measuring device for measuring inclination and deflection, a component inclination measuring method, a component deflection measuring method and a cantilever beam deflection measuring method.

[0051] like Figure 1-Figure 5 As shown, a laser ranging device for measuring inclination and deflection includes a bracket 2, a shell 1, a rotating rod 10, a first laser ranging sensor 4, a second laser ranging sensor 5, an angle sensor 6 and a processing module. The shell 1 is installed on the top of the bracket 2. One end of the rotating rod 10 is rotatably installed on the shell 1, and the other end thereof can be rotated around the shell 1 in a vertical plane to a specified position. The first laser ranging sensor 4 is arranged in the shell 1, and is used to emit and receive horizontal lasers outside the shell 1 to obtain the distance between the first laser ranging sensor and a point to be measured. The second laser ranging sensor 5 is arranged on the rotating rod 10, and is used to emit and receive lasers in a vertical plane to obtain the distance between the second laser ranging sensor and the point to be measured. The angle sensor 6 is arranged on the rotating rod 10, and is used to collect angle information between the first laser ranging sensor 4 and the second laser ranging sensor 5. The processing module is arranged in the shell 1, and is used to receive information collected by the first laser ranging sensor 4, the second laser ranging sensor 5 and the angle sensor 6, and calculate the inclination or deflection according to the received information.

[0052] The first laser ranging sensor 4 used in the embodiment of the present invention is a component that integrates a laser reflection receiver and a laser point transmitter. The component can be selected from commonly used commercially available components, and its specific structure and working principle are not described here. The first laser ranging sensor 4 is installed in the housing 1 to realize the function of a common laser rangefinder, with a range of 50m-100m and an accuracy of 1mm.

[0053] The second laser ranging sensor 5 used in the embodiment of the present invention is a component that integrates a laser reflection receiver and a laser point transmitter. The component can be selected from commonly used commercially available components. Its specific structure and working principle are not described in detail here. The second laser ranging sensor 5 is installed on the rotating rod 10 and can achieve 360-degree rotation with the help of the rotating rod 10, so that various measurement tasks can be completed when the housing 1 is fixed, without being affected by the rotation angle limitation. The measuring range is 50m-100m and the accuracy is 1mm.

[0054] The angle sensor 6 used in the embodiment of the present invention is an angle measurement component. The component can be selected from commonly used commercially available components. Its specific structure and working principle are not described in detail here. The angle sensor 6 is installed on the rotating rod 10 and can measure the rotation angle of the rotating rod 10 relative to the shell 1. The rotation angle is equivalent to the angle between two laser ranging sensors. The angle display range is 0°-180°, and the measurement accuracy is 0.1°-0.01°.

[0055] In one embodiment, Figure 1-Figure 3 As shown, the housing 1 and the bracket 2 can be detachably installed, which is convenient for disassembly and transportation. A slide groove is provided at the bottom of the housing 1, and a movable fixed support 15 and a rotary locker 16 for locking the fixed support are provided at the top of the bracket 2. The surface of the fixed support 15 is provided with a slide rail configured with the slide groove. The housing and the fixed support are connected by the slide groove and the slide rail, which can quickly and easily realize the detachable connection between the bracket and the housing. A slide groove cover 14 can also be slidably provided on the slide groove. When the housing needs to be mounted on the bracket, the slide groove cover is removed to connect the fixed support 15 of the bracket with the housing. The housing is made horizontal by adjusting the fixed support, and the fixed support is locked and cannot be moved by rotating the locker 16; and when the device is handheld for measurement, the slide groove cover is installed on the housing to protect the estimated slide groove from wear. The bracket 2 can be designed as a tripod, which has the advantages of simple structure, stability and reliability.

[0056] When the bracket is removed, the device can also be used to measure the distance between any two points. On-site personnel can use the device to directly measure the required size of the high-altitude components on the ground, without having to measure the size of the components by climbing up. The distance measurement principle is as follows: Fig. 9 As shown, when the present invention is used to measure the distance L3 between two beams of the measuring object 3 located at a high place, When measuring, first determine the object to be measured, turn on the line laser, so that the horizontal laser line it emits is parallel to the direction of the measured dimension of the object to be measured, align the laser point emitted by the first laser distance sensor with the edge of one end of the measured dimension of the object to be measured (a point to be measured), align the laser point emitted by the second laser distance sensor with the edge of the other end of the measured dimension (another point to be measured) assisted by the horizontal laser line, keep the positions of the laser points at both ends fixed, and press the "measurement button" to obtain the distance between it and a point to be measured through the first laser distance sensor. The distance between it and another point to be measured is obtained by using the second laser distance measuring sensor Obtain the angle between two laser distance sensors through the angle sensor After hearing two "beep" sounds, the measurement is complete. Press the "calculate button" and the processor's built-in program will calculate according to the cosine theorem. The calculation results are shown on the display.

[0057] In one embodiment, Figure 1-Figure 3 As shown, the shape of the rotating rod 10 is L-shaped and can fit with the adjacent two side walls of the shell 1. When not in use, the rotating rod 10 can be rotated to the side wall of the shell 1 to save space. When in use, the rotating rod 10 can be rotated to adjust the angle between the two laser ranging sensors.

[0058] In one embodiment, Figure 1 , Figure 2 As shown, the device also includes a line laser 7 arranged on the housing 1, and the line laser 7 is used to emit a horizontal laser line. The line laser 7 used in the embodiment of the present invention can be a straight line laser 7 that can emit a horizontal laser line. The components can be commercially available common components. Its specific structure and working principle are not described here. The straight line laser 7 is installed on the housing 1 and is arranged close to the first laser ranging sensor 4. The emitted horizontal laser line serves as an auxiliary point finding and positioning function to ensure that the positions of the two ranging laser points remain parallel to the measured side of the measured object, reduce the measurement error, and can also quickly locate the ranging laser point under strong ambient light conditions. The line laser 7 can also be a cross line laser.

[0059] In one embodiment, Figure 1 , Figure 2 As shown, the device further comprises a circular level 11 arranged on the housing 1. When the bracket is used for measurement, the circular level can ensure that the instrument is adjusted to a horizontal state to ensure measurement accuracy.

[0060] In one embodiment, Figure 1 , Figure 2As shown, the device also includes a strip level 12 arranged on the shell 1. When the present invention is held handheld to measure the spatial dimensions, the strip level 12 can ensure that the device is in a horizontal state, so that the lasers emitted at the front and rear remain horizontal, thereby ensuring measurement accuracy.

[0061] In one embodiment, Figure 1 , Figure 2 As shown, the device also includes an operation keyboard 8 arranged on the housing 1, and the operation keyboard 8 includes a power switch button, a direction button area and a function button area. Specifically, the direction button may include up, down, left and right buttons for adjusting the directions of the two laser ranging sensors, and the function buttons may include a measurement button, a calculation button, an inclination button and a deflection button, etc. The processing module is built with a measurement unit, a calculation unit, an inclination unit and a deflection unit corresponding to the measurement button, the calculation button, the inclination button and the deflection button. When the processing module detects different key inputs, it controls the corresponding unit to obtain measurement data and calculate the corresponding results. The processing module can be a microprocessor.

[0062] In one embodiment, Figure 3 , Figure 5 As shown, the device is also provided with a power module, specifically a battery compartment is provided in the shell (a battery compartment cover 13 is provided on the battery compartment), and a battery is provided in the battery compartment for providing power for the device. The battery can be a replaceable battery or a built-in rechargeable battery.

[0063] In one embodiment, Figure 1 , Figure 2 As shown, the device also includes a display screen 9 arranged on the housing 1, and the display screen 9 is connected to the controller. The display screen can be a liquid crystal screen for displaying the operation interface and measurement results, which can be black and white or color, and can also be a touch screen or a non-touch screen.

[0064] Accordingly, the present invention also provides a method for measuring the inclination of a component based on the above-mentioned laser distance measuring device for measuring inclination and deflection, such as Figure 6 As shown, the method comprises the following steps:

[0065] When the housing 1 is located in the middle of the component and the laser emitted by the second laser distance sensor 5 is irradiated on the upper end of the component, the first laser distance sensor 4 collects the horizontal distance information L between it and the component. b , the second laser ranging sensor 5 collects the first distance information La between it and the upper end of the component, and the angle sensor 6 collects the first angle information α between the first laser ranging sensor 4 and the second laser ranging sensor 5 when measuring the upper end of the component;

[0066] Rotate the rotating rod 10, and when the laser emitted by the second laser ranging sensor 5 hits the lower end of the component, the second laser ranging sensor 5 collects the second distance information L between it and the lower end of the component. d , the angle sensor 6 collects the second angle information β between the first laser ranging sensor 4 and the second laser ranging sensor 5 at the lower end of the measuring member;

[0067] Processing module according to L b , La, α, L d , β Calculate the inclination of the component

[0068] In one embodiment, the processing module performs the following operations according to L b , La, α, L d , β Calculate the inclination of the component Including calculation according to the inclination formula, the inclination formula includes:

[0069] in, is the inclination angle of the component, is the inclination rate, Lc is the distance between the laser points emitted by the two laser ranging sensors on the component plane when measuring the upper end of the component, based on the cosine theorem, Le is the distance between the laser points emitted by the two laser ranging sensors on the plane of the component when measuring the lower end of the component.

[0070] In one embodiment, the calculation according to the inclination formula includes:

[0071] When the tilt button is detected, the tilt formula is called;

[0072] When the measurement button is detected to be triggered, the first laser distance measuring sensor 4 collects the horizontal distance information L between it and the component. b The second laser ranging sensor 5 collects the first distance information La between it and the upper end of the component and the second distance information L between it and the lower end of the component. d , the angle sensor 6 collects the first angle information between the first laser ranging sensor 4 and the second laser ranging sensor 5 at the upper end of the measuring member, and the second angle information β between the first laser ranging sensor 4 and the second laser ranging sensor 5 at the lower end of the measuring member;

[0073] When the calculation button is triggered, the component inclination is calculated.

[0074] The present invention can use the plane measurement method to measure the inclination rate / tilt of an object. In view of the problem that when using a total station or theodolite to measure, the deflection value needs to be manually read at the edge of the vertical component with the help of a ruler, but components without edges such as walls and columns cannot be measured, the present invention can not only measure the inclination rate / tilt, but also determine the inclination direction, is not restricted by height, and can meet the needs of such measurement tasks.

[0075] When the component inclination measurement method provided by the present invention is used to measure the inclination rate / inclination of a component, the measurement principle is as follows: Figure 5 As shown, the measuring object 3 is in a tilted state, and the measuring object 3' is in an original state. The bracket is mounted on the housing and fixed on the ground so that the bubble in the circular level on the housing is centered. The housing is adjusted to a horizontal state, that is, the laser emitted by the first laser ranging sensor is ensured to be in a horizontal direction. The "tilt button" is pressed to enter the tilt module. The laser emitted by the first laser ranging sensor is pointed at the plane in the middle of the measuring object 3, and the "measurement button" is pressed to measure the distance L between the first laser ranging sensor and the middle plane. b , adjust the angle of the second laser distance sensor until the laser point it emits is projected on the plane of the upper end of the measurement object 3, and press the "measurement button" to measure the distance La between the second laser distance sensor and the upper end plane. The angle α between the two laser distance sensors is obtained through the angle sensor. Press the "calculation button" and the built-in program of the processor calculates the distance Lc between the two laser points on the component plane according to the cosine theorem formula. Based on the cosine theorem, the distance between the two laser points on the plane of the measurement object 3 is Press the "calculation button", the processor continues to calculate the vertical distance Lf = La·sinα and the horizontal distance La·cosα between the upper measuring point of the measuring object 3 and the first laser ranging sensor. The processor compares La·cosα with L b The size of the upper end of the measured object is used to determine the tilt direction of the upper end of the measured object. When La·cosα=Lb, the measured object has no tilt. When La·cosα<Lb, the upper end of the measured object tilts toward the direction close to the device. When La·cosα>Lb, the upper end of the measured object tilts toward the direction away from the device. In this embodiment, the measured object tilts toward the direction close to the device. Press the "calculation button" again, and the processor calculates the tilt angle of the measured object 3. and the slope To continue calculating the inclination of the measured object, rotate the second laser distance sensor until the emitted laser spot hits the plane at the lower end of the measured object 3, press the "measurement button" to measure the distance L between the second laser distance sensor and the plane at the lower end. d, obtain the angle β between the two laser distance measuring sensors through the angle sensor, press the "calculation button", and the built-in program of the processor calculates the distance Le between the two laser points on the component plane according to the cosine theorem formula. Based on the cosine theorem, the distance between the two laser points on the plane of the measurement object 3 Press the "Calculate" button again, and the processor's built-in program will calculate the inclination. All calculation results are shown on the display.

[0076] Correspondingly, such as Figure 7 As shown, the present invention also provides a component deflection measurement method based on the above-mentioned laser distance measuring device for measuring inclination and deflection, comprising the following steps:

[0077] When the laser emitted by the second laser distance measuring sensor 5 hits the bottom of the left end of the component, the second laser distance measuring sensor 5 collects the first distance information L between it and the left end of the component. Ⅰ , the angle sensor 6 collects the first angle information θ1 between the first laser distance sensor 4 and the second laser distance sensor 5 at the left end of the measuring member;

[0078] The housing 1 is rotated horizontally. When the laser emitted by the second laser ranging sensor 5 hits the bottom of the middle end of the component, the second laser ranging sensor 5 collects the second distance information L between it and the middle end of the component. Ⅱ , the angle sensor 6 collects the first angle information θ2 between the first laser distance measuring sensor 4 and the second laser distance measuring sensor 5 at the middle end of the measuring member;

[0079] The housing 1 is rotated horizontally. When the laser emitted by the second laser distance measuring sensor 5 hits the bottom of the right end of the component, the second laser distance measuring sensor 5 collects the third distance information L between it and the right end of the component. Ⅲ , the angle sensor 6 collects the third angle information θ3 between the first laser distance sensor 4 and the second laser distance sensor 5 at the right end of the measuring member;

[0080] The processing module calculates the component deflection according to the deflection formula The deflection formula includes

[0081] In one embodiment, the method comprises the following steps:

[0082] The processing module calculates the component deflection according to the deflection formula including:

[0083] When the deflection button is detected to be triggered, the deflection formula is called;

[0084] When the measurement button is detected to be triggered, the second laser distance measuring sensor 5 collects the first distance information L between it and the left end of the component. ⅠThe angle sensor 6 collects the first angle information θ1 between the first laser distance sensor 4 and the left end of the measuring component, and the second laser distance sensor 5 collects the second distance information L between it and the middle end of the component. Ⅱ The angle sensor 6 collects the first angle information θ2 between the first laser distance sensor 4 and the middle end of the measuring component, and the second laser distance sensor 5 collects the third distance information L between it and the right end of the component. Ⅲ , the angle sensor 6 collects the third angle information θ3 between the first laser distance sensor 4 and the second laser distance sensor 5 at the right end of the measuring member;

[0085] When the calculation button is triggered, the component deflection is calculated.

[0086] When the component deflection measurement method provided by the present invention is used to measure the deflection of a component, the measurement principle is as follows: Figure 7 As shown, the bracket is installed on the shell and fixed on the ground. The tripod is adjusted so that the bubble in the circular level on the shell is centered and the shell is in a horizontal state, that is, the laser emitted by the first laser ranging sensor is in a horizontal direction. The "deflection button" is pressed to enter the deflection calculation module. For the mid-span deflection, the "three-point" calculation is selected when entering the deflection calculation module. The angle of the second laser ranging sensor is adjusted until the emitted laser spot is projected on the bottom plane of the left end of the measurement object 3. The "measurement button" is pressed to measure the distance L between the second laser ranging sensor and the bottom plane of the left end. Ⅰ At the same time, the angle θ1 between the two laser distance measuring sensors is obtained through the angle sensor. The device is rotated horizontally to adjust the angle of the second laser distance measuring sensor until the emitted laser spot is projected on the middle bottom plane of the measurement object 3. The "measurement button" is pressed to measure the distance L between the second laser distance measuring sensor and the middle bottom plane. Ⅱ At the same time, the angle θ2 between the two laser distance measuring sensors is obtained through the angle sensor. The device is rotated horizontally again to adjust the angle of the second laser distance measuring sensor until the emitted laser spot is projected on the right bottom plane of the measurement object 3. The "measurement button" is pressed to measure the distance L between the second laser distance measuring sensor and the right bottom plane. Ⅲ At the same time, the angle θ3 between the two laser distance measuring sensors is obtained through the angle sensor. Press the "calculation button" and the built-in program of the processor calculates the mid-span deflection of the measuring object 3.

[0087] Correspondingly, such as Figure 8 As shown, the present invention also provides a cantilever beam deflection measurement method based on the above-mentioned laser distance measuring device for measuring inclination and deflection, comprising the following steps:

[0088] When the laser emitted by the second laser ranging sensor 5 hits the bottom of the cantilever end of the cantilever beam, the second laser ranging sensor 5 collects the first distance information L between it and the cantilever end of the cantilever beam. Ⅳ , the angle sensor 6 collects the first angle information θ4 between the first laser distance sensor 4 and the second laser distance sensor 5 when measuring the cantilever end of the cantilever beam;

[0089] The housing 1 is rotated horizontally. When the laser emitted by the second laser ranging sensor 5 hits the bottom of the fixed end of the cantilever beam, the second laser ranging sensor 5 collects the second distance information L between it and the fixed end of the cantilever beam. Ⅴ , the angle sensor 6 collects the first angle information θ5 between the first laser ranging sensor 4 and the second laser ranging sensor 5 when measuring the fixed end of the cantilever beam;

[0090] The processing module calculates the component deflection Δ according to the deflection formula, wherein the deflection formula includes Δ=L Ⅴ θsinθ5-L Ⅳ ·sinθ4.

[0091] When the cantilever beam deflection measurement method provided by the present invention is used to measure the deflection of the cantilever beam, it is only necessary to measure the deflection of the cantilever end. Two-point measurement can be used. Press the "deflection button" to enter the deflection calculation module, select "two-point calculation", and only need to measure the two ends to obtain L. Ⅳ、 θ4 and L Ⅴ、 θ5, cantilever end deflection Δ=L Ⅴ ·sinθ5-L Ⅳ ·sinθ4. The calculation result is shown on the display.

[0092] The present invention can utilize the relative height measurement method to measure the deflection of a component, and can complete the measurement task without establishing a spatial coordinate system, thereby reducing the amount of calculation and the performance requirements on the processor and improving the economy.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A laser distance measuring device for measuring inclination and deflection, characterized in that: The device comprises a bracket (2), a shell (1), a rotating rod (10), a first laser distance measuring sensor (4), a second laser distance measuring sensor (5), an angle sensor (6) and a processing module. The shell (1) is mounted on the top of the bracket (2). One end of the rotating rod (10) is rotatably mounted on the shell (1), and the other end of the rotating rod (10) can be rotated around the shell (1) in a vertical plane to a specified position. The first laser distance measuring sensor (4) is arranged in the shell (1) and is used to emit and receive laser light in a horizontal direction outside the shell (1). The second laser distance measuring sensor (5) is arranged on the rotating rod (10) and is used to emit and receive laser light in a vertical plane. The angle sensor (6) is arranged on the rotating rod (10) and is used to collect information about the angle between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5). The processing module is arranged in the shell (1) and is used to receive information collected by the first laser distance measuring sensor (4), the second laser distance measuring sensor (5) and the angle sensor (6), and calculate the inclination or deflection according to the received information.

2. The laser distance measuring device for measuring inclination and deflection according to claim 1, characterized in that: The housing (1) and the bracket (2) are detachably mounted.

3. The laser distance measuring device for measuring inclination and deflection according to claim 1, characterized in that: The rotating rod (10) is in an L-shape that can fit with the adjacent two side walls of the housing (1).

4. The laser distance measuring device for measuring inclination and deflection according to claim 1, characterized in that: The device also includes an operating keyboard (8) arranged on the housing (1), the operating keyboard (8) including a power switch button, a direction button area and a function button area, the function button area including a measurement button, a calculation button, an inclination button and a deflection button.

5. A method for measuring the inclination of a component based on the laser distance measuring device for measuring inclination and deflection according to any one of claims 1 to 4, characterized in that: The following steps are involved: When the housing (1) is located in the middle of the component and the laser emitted by the second laser distance measuring sensor (5) is irradiated at the upper end of the component, the first laser distance measuring sensor (4) collects horizontal distance information L between it and the component. b , the second laser distance measuring sensor (5) collects first distance information La between it and the upper end of the component, and the angle sensor (6) collects first angle information α between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) when measuring the upper end of the component; The rotating rod (10) is rotated, and when the laser emitted by the second laser distance measuring sensor (5) is irradiated on the lower end of the component, the second laser distance measuring sensor (5) collects second distance information L between it and the lower end of the component. d , the angle sensor (6) collects second angle information β between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) at the lower end of the measuring member; The processing module is based on L b , La, α, L d , β Calculate the component inclination 6. The component inclination measurement method according to claim 5, characterized in that: The processing module is based on L b , La, α, L d , β Calculate the component inclination Including calculating according to a slope formula, the slope formula includes: in, is the inclination angle of the component, is the inclination rate, Lc is the distance between the laser points emitted by the two laser ranging sensors on the component plane when measuring the upper end of the component, based on the cosine theorem, Le is the distance between the laser points emitted by the two laser ranging sensors on the plane of the component when measuring the lower end of the component.

7. The component inclination measurement method according to claim 6, characterized in that: The calculation according to the inclination formula includes: When the tilt button is detected to be triggered, the tilt formula is called; When the measurement button is detected to be triggered, the first laser distance measuring sensor (4) collects horizontal distance information L between it and the component. b The second laser distance measuring sensor (5) collects first distance information La between it and the upper end of the component and second distance information L between it and the lower end of the component. d The angle sensor (6) collects first angle information between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) when the measuring member is at the upper end, and second angle information β between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) when the measuring member is at the lower end; When the calculation button is triggered, the component inclination is calculated.

8. A method for measuring component deflection based on the laser distance measuring device for measuring inclination and deflection according to any one of claims 1 to 4, characterized in that: The following steps are involved: When the laser emitted by the second laser distance measuring sensor (5) hits the bottom of the left end of the component, the second laser distance measuring sensor (5) collects first distance information L between itself and the left end of the component. I The angle sensor (6) collects first angle information θ1 between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) at the left end of the measuring member; The housing (1) is rotated horizontally, and when the laser emitted by the second laser distance measuring sensor (5) is irradiated on the bottom of the middle end of the component, the second laser distance measuring sensor (5) collects second distance information L between itself and the middle end of the component. Ⅱ The angle sensor (6) collects first angle information θ2 between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) at the middle end of the measuring member; The housing (1) is rotated horizontally, and when the laser emitted by the second laser distance measuring sensor (5) is incident on the bottom of the right end of the component, the second laser distance measuring sensor (5) collects third distance information L between itself and the right end of the component. Ⅲ The angle sensor (6) collects third angle information θ3 between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) at the right end of the measuring member; The processing module calculates the component deflection according to the deflection formula The deflection formula includes 9. A member deflection measurement method according to claim 8, characterized in that: The method comprises the following steps: The processing module calculates the component deflection according to the deflection formula, including: When the deflection button is detected to be triggered, the deflection formula is called; When the measurement button is detected to be triggered, the second laser distance measuring sensor (5) collects first distance information L between it and the left end of the component. Ⅰ The angle sensor (6) collects first angle information θ1 between the first laser distance sensor (4) and the second laser distance sensor (5) at the left end of the measuring component, and the second laser distance sensor (5) collects second distance information L between it and the middle end of the component. Ⅱ The angle sensor (6) collects first angle information θ2 between the first laser distance sensor (4) and the second laser distance sensor (5) at the middle end of the measuring component, and the second laser distance sensor (5) collects third distance information L between it and the right end of the component. Ⅲ The angle sensor (6) collects third angle information θ3 between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) at the right end of the measuring member; When the calculation button is triggered, the component deflection is calculated.

10. A cantilever beam deflection measurement method based on the laser distance measuring device for measuring inclination and deflection according to any one of claims 1 to 4, characterized in that: The following steps are involved: When the laser emitted by the second laser distance measuring sensor (5) is incident on the bottom of the cantilever end of the cantilever beam, the second laser distance measuring sensor (5) collects first distance information L between itself and the cantilever end of the cantilever beam. Ⅳ The angle sensor (6) collects first angle information θ4 between the first laser distance sensor (4) and the second laser distance sensor (5) when measuring the cantilever end of the cantilever beam; The housing (1) is rotated horizontally, and when the laser emitted by the second laser distance measuring sensor (5) is irradiated at the bottom of the fixed end of the cantilever beam, the second laser distance measuring sensor (5) collects second distance information L between itself and the fixed end of the cantilever beam. Ⅴ The angle sensor (6) collects first angle information θ5 between the first laser distance measuring sensor (4) and the second laser distance measuring sensor (5) when measuring the fixed end of the cantilever beam; The processing module calculates the component deflection Δ according to the deflection formula, wherein the deflection formula includes Δ=L Ⅴ ·sinθ5-L Ⅳ ·sinθ4.

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