A laser measuring device for building structures
By designing a laser measurement device for building structures with multi-level folding and unfolding and adaptive support, the efficiency and accuracy problems of traditional measuring instruments in complex environments have been solved, realizing efficient and flexible building structure measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG TIANYUAN CONSTR MASCH CO LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional building surveying instruments are inefficient and inaccurate when measuring large-span, high-altitude structures or complex spatial curved surfaces. They are also inconvenient to adapt to and operate, and lack the ability to continuously scan surfaces.
A laser measurement device for building structures was designed, comprising a multi-stage folding and unfolding mechanism, a moving base mechanism, a rotating measurement mechanism, and an adaptive support system, enabling multi-angle, continuous scanning and ground-adaptive support, and achieving automated operation through motor drive.
It enables efficient, flexible, and accurate measurement of building structures, adapts to complex environments, expands the measurement range, improves measurement efficiency and accuracy, and simplifies the operation process.
Smart Images

Figure CN122170760A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building measurement technology, specifically a laser measurement device for building structures. Background Technology
[0002] In the construction, acceptance, and health monitoring processes of buildings, accurate measurement of structural dimensions, deformations, and spatial positions is a crucial step in ensuring project quality. Traditional measurement methods, such as total stations and levels, while offering high accuracy, have the following shortcomings: Limited measurement range: Traditional measuring instruments are usually fixed on a tripod and can only measure points within a limited range. For large-span structures, high-altitude structures or complex spatial curved surfaces, multiple station moves are required, resulting in low measurement efficiency and easy introduction of cumulative errors.
[0003] Poor adaptability: Construction sites are often complex environments with uneven ground and limited space, making it difficult for traditional tripods to be quickly leveled and stabilized, which affects measurement accuracy and efficiency.
[0004] Inconvenient to operate: For scenarios that require multi-angle and multi-point measurements, manual operation is cumbersome, labor-intensive, and it is difficult to guarantee the accurate reproduction of the measurement points.
[0005] Limited functionality: Existing equipment is mostly for fixed-point measurement and lacks the ability to move and measure along a specific trajectory, making it difficult to meet the scanning measurement needs of continuous surfaces.
[0006] Therefore, there is an urgent need for a laser measurement device for building structures that can be flexibly moved, adjusted at multiple angles, adapted to complex on-site environments, and has a wide measurement range. Summary of the Invention
[0007] This invention provides a laser measurement device for building structures, which solves the problems mentioned in the background art.
[0008] To achieve the above objectives, the present invention provides the following technical solution: A laser measurement device for building structures includes a mounting shell, within which a rotating base mechanism is provided. The rotating base mechanism has a first folding deflection mechanism connected to a second folding deflection mechanism. The second folding deflection mechanism has a movable base mechanism, and the movable base mechanism has a rotating measuring mechanism. A rotating positioning ring mechanism is located at the bottom of the mounting shell. Three support rod mechanisms, equally spaced along the circumference of the mounting shell, are located between the rotating positioning ring mechanism and the mounting shell. A threaded cap is connected to the mounting shell. The rotating base mechanism drives the first folding deflection mechanism to rotate and shift, the first and second folding deflection mechanisms to fold and unfold, the movable base mechanism drives the rotating measuring mechanism to move along the surface of the second folding deflection mechanism, the rotating measuring mechanism performs laser measurement on the building structure, the rotating positioning ring mechanism adjusts the state of the three support rod mechanisms, and the support rod mechanisms support the mounting shell.
[0009] As a preferred embodiment of the present invention, the rotating base mechanism includes a rotating seat rotatably connected to the mounting shell, a first gear ring fixedly connected to the inner side of the rotating seat, a first motor fixedly connected to the mounting shell inside the rotating seat, and a first gear fixedly connected to the output shaft of the first motor, the first gear meshing with the first gear ring.
[0010] As a preferred embodiment of the present invention, the first folding deflection mechanism includes a first deflection seat fixed on the mounting shell, the first deflection seat being rotatably connected to a first folding rod, the mounting shell being fixedly connected to a second deflection seat, the second deflection seat being rotatably connected to a first electric telescopic rod, the end of the first electric telescopic rod away from the second deflection seat being rotatably connected to a third deflection seat, and the third deflection seat and the first folding rod being fixedly connected.
[0011] As a preferred embodiment of the present invention, the second folding deflection mechanism includes a fourth deflection seat rotatably connected to the first folding rod. The fourth deflection seat and the first deflection seat are respectively disposed at both ends of the first folding rod. The fourth deflection seat is rotatably connected to the second folding rod. The first folding rod is fixedly connected to the fifth deflection seat. The fifth deflection seat is rotatably connected to the second electric telescopic rod. The end of the second electric telescopic rod away from the fifth deflection seat is rotatably connected to the sixth deflection seat. The sixth deflection seat is fixedly connected to the second folding rod. The surface of the second folding rod is provided with a U-shaped groove.
[0012] As a preferred embodiment of the present invention, the movable base mechanism includes a movable base, two bearings are fixedly connected to the bottom of the movable base, a movable wheel axle is provided on the bearings, a movable wheel is provided on the movable wheel axle, the movable wheel is located in a U-shaped groove, and a drive motor is provided in the movable wheel.
[0013] As a preferred embodiment of the present invention, the rotating measuring mechanism includes a protective circular shell rotatably connected to a movable seat. A laser measuring instrument is provided on the outer side of the protective circular shell, and a second gear ring is fixedly connected to the inner side of the protective circular shell. A second motor is fixedly connected to the movable seat inside the protective circular shell, and a second gear is fixedly connected to the output shaft of the second motor. The second gear and the second gear ring mesh with each other.
[0014] As a preferred embodiment of the present invention, the rotary positioning ring mechanism includes a protective ring fixed to the bottom of the mounting shell, a displacement ring rotatably connected inside the protective ring, a locking bolt threadedly connected to the displacement ring, the locking bolt passing through the displacement ring, and the end of the locking bolt contacting the protective ring.
[0015] As a preferred embodiment of the present invention, the support rod mechanism is fixed to a support seat at the bottom of the mounting shell. The support seat is rotatably connected to a support sleeve. A support threaded rod is threadedly connected to the support sleeve. A first hinge seat is hinged inside the displacement ring. The first hinge seat is fixedly connected to the displacement rod. A second hinge seat is fixedly connected to the end of the displacement rod away from the first hinge seat. The second hinge seat is hinged to a mounting ring. The mounting ring is located on the outside of the support sleeve. The mounting ring and the support sleeve are rotatably connected.
[0016] The present invention has the following advantages: 1. Multi-stage folding and unfolding for a wide measurement range: Through the combination of the first and second folding deflection mechanisms, the laser measuring instrument can be unfolded from its stored state to its working state, significantly expanding the spatial coverage of the measuring head. The first and second electric telescopic rods can be independently controlled in terms of folding angle to adapt to measurement needs at different heights and distances.
[0017] 2. Moving measurement, covering continuous surfaces: The moving base mechanism moves within the U-shaped groove of the second folding rod via moving wheels, driving the rotating measuring mechanism to move along the folding rod, thereby achieving continuous scanning measurement of the building structure surface. This avoids blind spots in fixed-point measurement and is particularly suitable for measuring large-sized components or curved surfaces.
[0018] 3. Multi-degree-of-freedom adjustment, flexible angle: The rotating base mechanism can drive the entire folding mechanism to rotate, achieving 360-degree measurement in the horizontal plane; the rotating measuring mechanism itself can also rotate, achieving multi-angle pointing of the laser head. The combination of the two gives the measuring head extremely high spatial pointing flexibility.
[0019] 4. Ground-adaptive support for excellent stability: The rotating positioning ring mechanism can synchronously adjust the angle of the three support rod mechanisms by rotating the displacement ring, ensuring the device remains horizontal and stable even on uneven ground. The support thread of each support rod can be independently adjusted in height, further adapting to complex terrain.
[0020] 5. Compact structure and easy to carry: When not in use, the first and second folding deflection mechanisms can be folded and stored in the mounting shell. After the cover is tightened, a compact box structure is formed, which is convenient for transportation and on-site handling.
[0021] 6. High degree of automation and easy operation: Each motion mechanism can be automatically controlled by the control system, realizing functions such as one-click deployment, automatic leveling, and path planning measurement, which greatly reduces manual operation and improves measurement efficiency and accuracy.
[0022] 7. Wide range of applications: It can be used for various scenarios such as dimension verification at construction sites, steel structure deformation monitoring, curtain wall installation positioning, and ancient building surveying. Attached Figure Description
[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 This is a first-view structural schematic diagram of a laser measurement device for building structures.
[0025] Figure 2 This is a schematic diagram of a laser measurement device for building structures from a second perspective.
[0026] Figure 3 This is a cross-sectional view of the rotating base mechanism in a laser measurement device for building structures.
[0027] Figure 4 This is a cross-sectional view of the moving base mechanism and the rotating measuring mechanism in a laser measuring device for building structures.
[0028] Figure 5 This is a schematic diagram of the closed cover in a laser measurement device for building structures.
[0029] In the diagram: 1. Mounting shell; 2. Rotating base mechanism; 201. Rotating seat; 202. First gear ring; 203. First motor; 204. First gear; 3. First folding and deflecting mechanism; 301. First deflecting seat; 302. First folding rod; 303. Second deflecting seat; 304. First electric telescopic rod; 305. Third deflecting seat; 4. Second folding and deflecting mechanism; 401. Fourth deflecting seat; 402. Second folding rod; 403. Fifth deflecting seat; 404. Second electric telescopic rod; 405. Sixth deflecting seat; 406. U-shaped groove; 5. Moving base mechanism; 01. Moving seat; 502. Shaft seat; 503. Moving wheel axle; 504. Moving wheel; 6. Rotary measuring mechanism; 601. Protective circular shell; 602. Laser measuring instrument; 603. Second gear ring; 604. Second motor; 605. Second gear; 7. Rotary positioning ring mechanism; 701. Protective ring; 702. Displacement ring; 703. Locking bolt; 8. Support rod mechanism; 801. Support seat; 802. Support sleeve; 803. Support threaded rod; 804. First hinge seat; 805. Displacement rod; 806. Second hinge seat; 807. Mounting ring; 9. Sealing cover. Detailed Implementation
[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0031] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0032] For examples, please refer to Figures 1-5A laser measuring device for building structures includes a mounting shell 1, a rotating base mechanism 2 inside the mounting shell 1, a first folding deflection mechanism 3 on the rotating base mechanism 2, a second folding deflection mechanism 4 connected to the first folding deflection mechanism 3, a movable base mechanism 5 on the second folding deflection mechanism 4, a rotating measuring mechanism 6 on the movable base mechanism 5, a rotating positioning ring mechanism 7 at the bottom of the mounting shell 1, and three support rod mechanisms 8 arranged at equal angles along the circumference of the mounting shell 1 between the rotating positioning ring mechanism 7 and the mounting shell 1. A threaded cap 9 is connected to the mounting shell 1. The rotating base mechanism 2 drives the first folding deflection mechanism 3 to rotate and change position. The first folding deflection mechanism 3 and the second folding deflection mechanism 4 are used to achieve folding and unfolding. The movable base mechanism 5 drives the rotating measuring mechanism 6 to move along the surface of the second folding deflection mechanism 4. The rotating measuring mechanism 6 is used to perform laser measurement on the building structure. The rotating positioning ring mechanism 7 is used to adjust the state of the three support rod mechanisms 8, and the support rod mechanisms 8 are used to support the mounting shell 1.
[0033] The rotating base mechanism 2 includes a rotating seat 201 rotatably connected to the mounting shell 1. A first gear ring 202 is fixedly connected to the inner side of the rotating seat 201. A first motor 203 is fixedly connected to the mounting shell 1 inside the rotating seat 201. The output shaft of the first motor 203 is fixedly connected to a first gear 204. The first gear 204 and the first gear ring 202 mesh.
[0034] Specifically, when the first motor 203 starts, it drives the first gear 204 to rotate, which in turn drives the rotating seat 201 to rotate relative to the mounting shell 1 via the first gear ring 202.
[0035] The first folding deflection mechanism 3 includes a first deflection seat 301 fixed on the mounting shell 1, the first deflection seat 301 being rotatably connected to a first folding rod 302, the mounting shell 1 being fixedly connected to a second deflection seat 303, the second deflection seat 303 being rotatably connected to a first electric telescopic rod 304, the end of the first electric telescopic rod 304 away from the second deflection seat 303 being rotatably connected to a third deflection seat 305, and the third deflection seat 305 and the first folding rod 302 being fixedly connected. The second folding deflection mechanism 4 includes a fourth deflection seat 401 rotatably connected to the first folding rod 302. The fourth deflection seat 401 and the first deflection seat 301 are respectively disposed at both ends of the first folding rod 302. The fourth deflection seat 401 is rotatably connected to the second folding rod 402. The first folding rod 302 is fixedly connected to the fifth deflection seat 403. The fifth deflection seat 403 is rotatably connected to the second electric telescopic rod 404. The end of the second electric telescopic rod 404 away from the fifth deflection seat 403 is rotatably connected to the sixth deflection seat 405. The sixth deflection seat 405 is fixedly connected to the second folding rod 402. The surface of the second folding rod 402 is provided with a U-shaped groove 406.
[0036] Specifically, when the first electric telescopic rod 304 extends or retracts, it drives the first folding rod 302 to swing around the first deflector seat 301, achieving a first-stage folding or unfolding. The surface of the second folding rod 402 is provided with a U-shaped groove 406 along its length to guide the movement of the moving base mechanism 5. When the second electric telescopic rod 404 extends or retracts, it drives the second folding rod 402 to swing around the fourth deflector seat 401, achieving a second-stage folding or unfolding.
[0037] The movable base mechanism 5 includes a movable base 501, with two bearing seats 502 fixedly connected to the bottom of the movable base 501. A movable wheel axle 503 is mounted on the bearing seat 502, and a movable wheel 504 is mounted on the movable wheel axle 503. The movable wheel 504 is located within a U-shaped groove 406, and a drive motor is located within the movable wheel 504. The rotary measuring mechanism 6 includes a protective circular shell 601 rotatably connected to the movable base 501. A laser measuring instrument 602 is mounted on the outer side of the protective circular shell 601, and a second gear ring 603 is fixedly connected to the inner side of the protective circular shell 601. A second motor 604 is fixedly connected to the movable base 501 within the protective circular shell 601. The output shaft of the second motor 604 is fixedly connected to a second gear 605, and the second gear 605 meshes with the second gear ring 603.
[0038] Specifically, the movable wheel 504 is located within the U-shaped groove 406 and contacts the bottom and sidewalls of the U-shaped groove 406, serving as a guide and support. The movable wheel 504 contains a drive motor (i.e., a hub motor), which drives the movable wheel 504 to rotate, causing the movable seat 501 to move along the U-shaped groove 406. When the second motor 604 is started, it drives the second gear 605 to rotate, which in turn drives the protective circular shell 601 and the laser measuring instrument 602 to rotate via the second gear ring 603, adjusting the measuring angle.
[0039] The rotary positioning ring mechanism 7 includes a protective ring 701 fixed to the bottom of the mounting shell 1. A displacement ring 702 is rotatably connected inside the protective ring 701. A locking bolt 703 is threadedly connected to the displacement ring 702, and the locking bolt 703 passes through the displacement ring 702, with its end contacting the protective ring 701. The support rod mechanism 8 is fixed to a support base 801 at the bottom of the mounting shell 1. The support base 801 is rotatably connected to a support sleeve 802. A support threaded rod 803 is threadedly connected inside the support sleeve 802. A first hinge seat 804 is hinged inside the displacement ring 702. A displacement rod 805 is fixedly connected to the first hinge seat 804. A second hinge seat 806 is fixedly connected to the end of the displacement rod 805 away from the first hinge seat 804. A mounting ring 807 is hinged to the second hinge seat 806. The mounting ring 807 is located on the outside of the support sleeve 802, and the mounting ring 807 and the support sleeve 802 are rotatably connected.
[0040] Specifically, when the displacement ring 702 is rotated, it drives the mounting ring 807 to move via the displacement rod 805, which in turn pushes the support sleeve 802 to swing around the support base 801, changing the angle of the three support rods. After adjustment, the locking bolt 703 is tightened to lock the displacement ring 702. The support threaded rod 803 can be screwed in and out of the support sleeve 802 for fine-tuning the support height to adapt to uneven ground.
[0041] The workflow of this invention is as follows: 1. Deployment and Leveling: Place the device at the measurement position and unscrew the sealing cap 9. Depending on the ground conditions, rotate the displacement ring 702 to adjust the angle of the three support rod mechanisms 8 to a suitable position, and tighten the locking bolts 703. Then adjust the screw-out length of each support threaded rod 803 to make the device level and stable.
[0042] 2. Folding arm unfolding: Activate the first electric telescopic rod 304 and the second electric telescopic rod 404, respectively driving the first folding rod 302 and the second folding rod 402 to unfold to the required angle and position, so that the laser measuring instrument 602 is aligned with the area to be measured.
[0043] 3. Coarse positioning: Start the first motor 203, drive the entire folding mechanism to rotate through the rotating base mechanism 2, so that the laser measuring instrument 602 is aligned with the direction to be measured in the horizontal plane.
[0044] 4. Moving Measurement: Start the drive motor inside the moving wheel 504 to move the moving seat 501 along the U-shaped groove 406 of the second folding rod 402, driving the laser measuring instrument 602 to perform continuous scanning measurement. At the same time, the second motor 604 can be started as needed to drive the laser measuring instrument 602 to rotate and adjust the measurement angle.
[0045] 5. Data Acquisition: The laser measuring instrument 602 acquires data such as distance and angle in real time, and records and processes it through the control system.
[0046] 6. Storage: After measurement, move the movable seat 501 to the initial position, and retract the folding mechanism into the mounting shell 1 through the first electric telescopic rod 304 and the second electric telescopic rod 404, and screw on the closing cover 9.
[0047] Through the above design, this invention achieves efficient, flexible, and accurate measurement of building structures, significantly improving the automation level and adaptability of on-site measurement.
[0048] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A laser measurement device for building structures, comprising a mounting shell, characterized in that, The mounting shell contains a rotating base mechanism, on which a first folding deflection mechanism is mounted. The first folding deflection mechanism is connected to a second folding deflection mechanism, which in turn is mounted on a movable base mechanism. The movable base mechanism is mounted on a rotating measuring mechanism. A rotating positioning ring mechanism is located at the bottom of the mounting shell. Three support rod mechanisms, equally spaced along the circumference of the mounting shell, are located between the rotating positioning ring mechanism and the mounting shell. A threaded cap is attached to the mounting shell. The rotating base mechanism drives the first folding deflection mechanism to rotate and shift. The first and second folding deflection mechanisms enable folding and unfolding. The movable base mechanism drives the rotating measuring mechanism to move along the surface of the second folding deflection mechanism. The rotating measuring mechanism performs laser measurements on the building structure. The rotating positioning ring mechanism adjusts the state of the three support rod mechanisms, which in turn support the mounting shell.
2. The laser measurement device for building structures according to claim 1, characterized in that, The rotating base mechanism includes a rotating seat rotatably connected to the mounting shell, a first gear ring fixedly connected to the inner side of the rotating seat, a first motor fixedly connected to the mounting shell inside the rotating seat, and a first gear fixedly connected to the output shaft of the first motor, the first gear meshing with the first gear ring.
3. The laser measurement device for building structures according to claim 2, characterized in that, The first folding deflection mechanism includes a first deflection seat fixed to a mounting shell, a first folding rod rotatably connected to the first deflection seat, a second deflection seat fixedly connected to the mounting shell, a first electric telescopic rod rotatably connected to the second deflection seat, a third deflection seat rotatably connected to the end of the first electric telescopic rod away from the second deflection seat, and a third deflection seat and the first folding rod fixedly connected.
4. The laser measurement device for building structures according to claim 3, characterized in that, The second folding deflection mechanism includes a fourth deflection seat rotatably connected to the first folding rod. The fourth deflection seat and the first deflection seat are respectively located at both ends of the first folding rod. The fourth deflection seat is rotatably connected to the second folding rod. The first folding rod is fixedly connected to the fifth deflection seat. The fifth deflection seat is rotatably connected to the second electric telescopic rod. The end of the second electric telescopic rod away from the fifth deflection seat is rotatably connected to the sixth deflection seat. The sixth deflection seat is fixedly connected to the second folding rod. The surface of the second folding rod is provided with a U-shaped groove.
5. The laser measurement device for building structures according to claim 4, characterized in that, The movable base mechanism includes a movable base, with two axle seats fixedly connected to the bottom of the movable base. The axle seats are equipped with movable wheel axles, and the movable wheel axles are equipped with movable wheels. The movable wheels are located in U-shaped grooves, and drive motors are installed inside the movable wheels.
6. The laser measurement device for building structures according to claim 5, characterized in that, The rotating measuring mechanism includes a protective circular shell rotatably connected to a movable seat. A laser measuring instrument is provided on the outer side of the protective circular shell, and a second gear ring is fixedly connected to the inner side of the protective circular shell. A second motor is fixedly connected to the movable seat inside the protective circular shell, and the output shaft of the second motor is fixedly connected to a second gear. The second gear and the second gear ring mesh with each other.
7. The laser measurement device for building structures according to claim 1, characterized in that, The rotary positioning ring mechanism includes a protective ring fixed to the bottom of the mounting shell, a displacement ring rotatably connected inside the protective ring, a locking bolt threadedly connected to the displacement ring, the locking bolt passing through the displacement ring, and the end of the locking bolt contacting the protective ring.
8. The laser measurement device for building structures according to claim 7, characterized in that, The support rod mechanism is fixed to the support base at the bottom of the mounting shell. The support base is rotatably connected to the support sleeve. The support sleeve is internally threaded with a support threaded rod. A first hinge seat is hinged inside the displacement ring. The first hinge seat is fixedly connected to the displacement rod. The end of the displacement rod away from the first hinge seat is fixedly connected to a second hinge seat. The second hinge seat is hinged to a mounting ring. The mounting ring is located on the outside of the support sleeve. The mounting ring and the support sleeve are rotatably connected.