Arc lofting device for building construction and construction method thereof

Abstract

The present invention discloses an arc lofting device for construction and a construction method thereof. The device comprises two laser emitting mechanisms with completely identical structures and used for emitting laser surfaces. The laser surfaces emitted by the two laser emitting mechanisms can rotate at the same speed and in the same direction. The laser emitting mechanism comprises a tripod, the upper end of the tripod is rotatably connected to a rotating base, a reduction motor is arranged at the bottom of the rotating base, a first gear is connected to the output shaft of the reduction motor, a second gear is arranged on the side of the rotating base, the first gear is meshed with the second gear, a pipe clamp is arranged on the upper part of the rotating base, and a laser emitter for emitting laser surfaces is installed on the pipe clamp. The device of the present invention has a simple structure, reasonable design, convenient implementation and low cost, is easy to carry, simple to operate, and has high reliability. One person can complete the lofting operation, saving manpower and material resources, and can be repeatedly used many times. It can be applied to arc lofting of different radii, has high construction accuracy, good use effect, and is easy to promote and use.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to an arc lofting device for building construction and a construction method thereof. Background Art

[0002] In modern building construction, when laying out arc-shaped components or shaped planes, the following five arc laying-out methods are usually used: direct wire drawing method, instrument deflection method, coordinate method, bowstring method and tangent method. However, all of these five methods have certain limitations. The direct wire drawing method can only be applied to arcs with smaller radius, and there must be no obstacles or overhangs within the fan-shaped angle from the arc to the center of the circle, and the slope must be small. Otherwise, it is not easy to operate or the accuracy is reduced. Although the instrument method is applicable to arcs with large radius, the points cannot be too dense, and the measurement is difficult. When the points are too dense, the accuracy of the ruler (mirror), reading and distance measurement will cause errors, the operation is time-consuming and laborious, the accuracy of the arc is not high, and it is troublesome to restore if there are missing points; the bowstring method and the tangent method require a certain range of operable sites or platforms at the location to be laid out, that is, there is no obstacle, no hanging, and relatively flat within the range formed by the arc and the corresponding string or within the range of the arc and the tangent and the offset. When the arc is large, the error of the bowstring method will become larger, and the two methods need to be used together. The workload of internal calculations is large, and the on-site operation is time-consuming and laborious. In view of this situation, there is an urgent need for an arc laying device that is simple to operate, has few limiting factors, and has high laying accuracy. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an arc layout device for construction in view of the deficiencies in the above-mentioned prior art. The device has a simple structure, reasonable design, easy implementation and low cost, is easy to carry, simple to operate and has high reliability. One person can complete the layout operation, saving manpower and material resources, and can be reused many times. It can be suitable for arc layout of different radii, has high construction accuracy, good use effect, and is easy to promote and use.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an arc lofting device for construction, comprising two laser emitting mechanisms with completely identical structures and used for emitting laser surfaces, and the laser surfaces emitted by the two laser emitting mechanisms can rotate at the same speed and in the same direction; the laser emitting mechanism comprises a tripod, the upper end of the tripod is rotatably connected to a rotating base, the bottom of the rotating base is provided with a reduction motor, the output shaft of the reduction motor is connected to a first gear, the side of the rotating base is provided with a second gear, the first gear is meshed with the second gear, the upper part of the rotating base is provided with a pipe clamp, and the pipe clamp is installed with a laser emitter for emitting laser surfaces.

[0005] In the above-mentioned arc lofting device for construction, the laser emitting mechanism also includes a wireless remote control system, the wireless remote control system includes a motor controller and a power supply for powering the wireless remote control system, the input end of the motor controller is connected to a wireless remote control receiver, the wireless remote control receiver is wirelessly connected to a wireless remote controller, and the reduction motor is connected to the output end of the motor controller.

[0006] In the above-mentioned arc lofting device for construction, the reduction ratio between the first gear and the second gear is 1:30.

[0007] In the above-mentioned arc lofting device for construction, the reduction motor adopts a PWM DC motor.

[0008] The present invention also discloses a construction method of an arc-line lofting device for building construction, using the arc-line lofting device, the construction method comprises the following steps:

[0009] Step 1: Assemble two laser emission mechanisms;

[0010] Step 2: Debug the arc setting device;

[0011] Step 3: Carry out arc layout construction.

[0012] In the above-mentioned construction method of an arc lofting device for building construction, the specific process of debugging the arc lofting device in step 2 includes:

[0013] Step 201, placing two laser emitting mechanisms in an open space;

[0014] Step 202, leveling the two laser emitting mechanisms;

[0015] Step 203, measuring the center distance between the two laser emitting mechanisms;

[0016] Step 204, draw two short lines with equal distance from the center on the ground or wall at the diameter of the circle where the arc to be lofted is located;

[0017] Step 205, turning on the laser emitters of the two laser emitting mechanisms, so that the two groups of laser rays coincide with the two short lines respectively;

[0018] Step 206, pressing the wireless remote controller to make the two groups of laser rays rotate in the same direction;

[0019] Step 207, after completing one circle, observe whether the two groups of laser rays overlap with the two short lines;

[0020] Step 208: When there is no overlap, the speed of the reduction motor is adjusted by the motor controller;

[0021] Step 209, repeating steps 205 to 208 until the two groups of laser beams overlap with the two short lines, so that the speeds of the reduction motors of the two laser emitting mechanisms are the same.

[0022] In the above-mentioned construction method of the arc setting out device for building construction, the specific process of performing arc setting out construction in step 3 includes:

[0023] Step 301, determine the two end points of the arc to be lofted;

[0024] Step 302, determining the vertex of the circular angle of the arc to be lofted;

[0025] Step 303, placing two laser emitting mechanisms at the two end points of the arc to be lofted respectively, and making the two groups of laser rays intersect at the vertex of the circular angle;

[0026] Step 304: Use a wireless remote controller to control the two laser emitting mechanisms to rotate synchronously, and use a marker to draw the motion trajectory of the intersection of the two groups of laser rays on the ground, which is the arc to be staked out.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. The device of the present invention has a simple structure, reasonable design, convenient implementation and low cost.

[0029] 2. Compared with the traditional layout method, the present invention abandons the traditional mechanical measurement and layout concept and adopts a new layout concept of controlling the motion trajectory of two groups of laser intersections. The present invention uses wireless remote control to rotate two laser emitting mechanisms in the same direction and at the same angular velocity, and start and stop at the same time. The two groups of laser intersections move continuously and evenly, and the curvature of the intersection motion trajectory is completely consistent.

[0030] 3. The present invention has strong versatility and a wide range of applications. It is not restricted by the radius of the arc, the position of the center of the circle to which the arc corresponds, the height difference such as the undulating terrain of the layout area, or the presence or absence of obstacles or whether the layout area is suspended.

[0031] 4. The arc lofting device of the present invention is easy to carry, simple to operate, and highly reliable. One person can complete the lofting operation and can be reused many times. It can be applied to arc lofting of different radii, has high construction accuracy, good use effect, and is easy to promote and use.

[0032] To sum up, the device of the present invention has a simple structure, reasonable design, easy implementation and low cost, is easy to carry, simple to operate and highly reliable, and one person can complete the layout operation, saving manpower and material resources, and can be reused many times. It can be suitable for arc layout of different radii, has high construction accuracy, good use effect, and is easy to promote and use.

[0033] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the laser emitting mechanism of the present invention;

[0035] Figure 2 It is a principle block diagram of the wireless remote control system of the present invention;

[0036] Figure 3 It is a flow chart of the construction method of the present invention.

[0037] Description of reference numerals:

[0038] 1—Tripod; 2—Rotating base; 3—Reduction motor;

[0039] 4—first gear; 5—second gear; 6—pipe clamp;

[0040] 7—Laser transmitter; 8—Motor controller; 9—Power supply;

[0041] 10—Wireless remote control receiver; 11—Wireless remote control. DETAILED DESCRIPTION

[0042] The arc-line lofting device for construction of the present invention comprises two laser emitting mechanisms with completely identical structures for emitting laser surfaces, wherein the laser surfaces emitted by the two laser emitting mechanisms can rotate at the same speed and in the same direction; Figure 1 As shown, the laser emitting mechanism includes a tripod 1, the upper end of the tripod 1 is rotatably connected to a rotating base 2, a reduction motor 3 is arranged at the bottom of the rotating base 2, a first gear 4 is connected to the output shaft of the reduction motor 3, a second gear 5 is arranged on the side of the rotating base 2, the first gear 4 is meshed with the second gear 5, a pipe clamp 6 is arranged on the upper part of the rotating base 2, and a laser emitter 7 for emitting a laser surface is installed on the pipe clamp 6.

[0043] In this embodiment, the laser emitting mechanism also includes a wireless remote control system such as Figure 2 As shown, the wireless remote control system includes a motor controller 8 and a power supply 9 for powering the wireless remote control system. The input end of the motor controller 8 is connected to a wireless remote control receiver 10, and the wireless remote control receiver 10 is wirelessly connected to a wireless remote controller 11. The reduction motor 3 is connected to the output end of the motor controller 8.

[0044] In specific implementation, a wireless remote controller 11 is used to send remote control signals to two wireless remote control receivers 10 simultaneously and synchronously. The number of motor controllers 8, power supplies 9 and wireless remote control receivers 10 are all exactly the same, and are respectively installed on two laser emitting mechanisms.

[0045] In this embodiment, the reduction ratio between the first gear 4 and the second gear 5 is 1:30.

[0046] In this embodiment, the reduction motor 3 is a PWM DC motor.

[0047] like Figure 3 As shown, the construction method of the arc setting out device for building construction of the present invention comprises the following steps:

[0048] Step 1: Assemble two laser emission mechanisms;

[0049] Step 2: Debug the arc setting device;

[0050] Step 3: Carry out arc layout construction.

[0051] In this embodiment, the specific process of debugging the arc lofting device in step 2 includes:

[0052] Step 201, placing two laser emitting mechanisms in an open space;

[0053] Step 202, leveling the two laser emitting mechanisms;

[0054] Step 203, measuring the center distance between the two laser emitting mechanisms;

[0055] Step 204, draw two short lines with equal distance from the center on the ground or wall at the diameter of the circle where the arc to be lofted is located;

[0056] Step 205, turning on the laser emitters of the two laser emitting mechanisms, so that the two groups of laser rays coincide with the two short lines respectively;

[0057] Step 206, pressing the wireless remote controller to make the two groups of laser rays rotate in the same direction;

[0058] Step 207, after completing one circle, observe whether the two groups of laser rays overlap with the two short lines;

[0059] Step 208: When there is no overlap, the speed of the reduction motor is adjusted by the motor controller;

[0060] Step 209, repeating steps 205 to 208 until the two groups of laser beams overlap with the two short lines, so that the speeds of the reduction motors of the two laser emitting mechanisms are the same.

[0061] In this embodiment, the specific process of performing arc lofting construction in step 3 includes:

[0062] Step 301, determine the two end points of the arc to be lofted;

[0063] In the specific implementation, AUTOCAD is used to measure the distances between the two end points A and B of the curved wall and the axes of the two nearest directions at a 1:1 ratio;

[0064] Step 302, determining the vertex of the circular angle of the arc to be lofted;

[0065] In specific implementation, AUTOCAD is used to select any point C on the arc at a 1:1 ratio, and the distance between the point and the nearest two direction axes is measured;

[0066] Step 303, placing two laser emitting mechanisms at the two end points of the arc to be lofted respectively, and making the two groups of laser rays intersect at the vertex of the circular angle;

[0067] In the specific implementation, the two end points A and B of the arc wall and any point C on the arc are measured and laid out by the on-site control axis, a laser emitting mechanism is placed at each point A and B, leveled and centered, and then the two laser emitting mechanisms are rotated so that the two groups of laser rays intersect at point C;

[0068] Step 304: Use a wireless remote controller to control the two laser emitting mechanisms to rotate synchronously, and use a marker to draw the motion trajectory of the intersection of the two groups of laser rays on the ground, which is the arc to be staked out.

[0069] In specific implementation, if the diameter of the circle where the arc is located exceeds 30m, resulting in a larger linear speed of the intersection point and making it difficult to draw the line manually, you can tap the wireless remote control and finally connect the points on the ground.

[0070] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A construction method of an arc-line lofting device for construction, the arc-line lofting device for construction comprising two laser emitting mechanisms of completely identical structure and used for emitting laser surfaces, the laser surfaces emitted by the two laser emitting mechanisms being able to rotate at the same speed and in the same direction; the laser emitting mechanism comprising a tripod (1), the upper end of the tripod (1) being rotatably connected to a rotating base (2), the bottom of the rotating base (2) being provided with a reduction motor (3), the output shaft of the reduction motor (3) being connected to a first gear (4), the side of the rotating base (2) being provided with a second gear (5), the first gear (4) being meshed with the second gear (5), the upper part of the rotating base (2) being provided with a pipe clamp (6), the pipe clamp (6) being provided with a laser emitter (7) for emitting laser surfaces; The laser emitting mechanism further comprises a wireless remote control system, the wireless remote control system comprising a motor controller (8) and a power supply (9) for supplying power to the wireless remote control system, the input end of the motor controller (8) is connected to a wireless remote control receiver (10), the wireless remote control receiver (10) is wirelessly connected to a wireless remote controller (11), and the reduction motor (3) is connected to the output end of the motor controller (8); characterized in that: The construction method comprises the following steps: Step 1: Assemble two laser emission mechanisms; Step 2: Debug the arc setting device; The specific process of debugging the arc setting device in step 2 includes: Step 201, placing two laser emitting mechanisms in an open space; Step 202, leveling the two laser emitting mechanisms; Step 203, measuring the center distance between the two laser emitting mechanisms; Step 204, draw two short lines with equal distance from the center on the ground or wall at the diameter of the circle where the arc to be lofted is located; Step 205, turning on the laser emitters of the two laser emitting mechanisms, so that the two groups of laser rays coincide with the two short lines respectively; Step 206, pressing the wireless remote controller to make the two groups of laser rays rotate in the same direction; Step 207, after completing one circle, observe whether the two groups of laser rays overlap with the two short lines; Step 208: When there is no overlap, the speed of the reduction motor is adjusted by the motor controller; Step 209, repeating steps 205 to 208 until the two groups of laser rays coincide with the two short lines, so that the speeds of the reduction motors of the two laser emitting mechanisms are the same; Step 3: Carry out arc lofting construction; The specific process of arc lofting construction in step 3 includes: Step 301, determine the two end points of the arc to be lofted; Step 302, determining the vertex of the circular angle of the arc to be lofted; Step 303, placing two laser emitting mechanisms at the two end points of the arc to be lofted respectively, and making the two groups of laser rays intersect at the vertex of the circular angle; Step 304: Use a wireless remote controller to control the two laser emitting mechanisms to rotate synchronously, and use a marker to draw the motion trajectory of the intersection of the two groups of laser rays on the ground, which is the arc to be staked out.

2. A construction method of an arc lofting device for construction according to claim 1, characterized in that: The reduction ratio between the first gear (4) and the second gear (5) is 1:

30.

3. The construction method of the arc-line setting-out device for construction according to claim 1, characterized in that: The reduction motor (3) is a PWM direct current motor.

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