Digital building measuring device based on three-dimensional scanning

Abstract

The utility model discloses a digital building measuring device based on three-dimensional scanning, which relates to the technical field of building measurement, and comprises a support rod, the upper end of the support rod is fixedly connected with a scanner main body, the support rod is movably sleeved with a support tube, and the support tube is externally provided with a bracket mechanism; a lifting mechanism is arranged at the lower ends of the front surfaces of the supporting rod and the supporting pipe; according to the digital building measuring device based on three-dimensional scanning, a threaded sleeve, a supporting disc and a pull rod of the support mechanism are in linkage with supporting legs to achieve rapid opening and stable supporting, and stepless adjustment and reliable locking of the height of a supporting rod and a scanner body are achieved through cooperation of a rack, a gear, a ratchet wheel and a pawl of the lifting mechanism; the height adjusting mode is simple in structure and visual and convenient to operate, only the supporting rod needs to be pulled upwards or the pawl is released and then put down, extra electric driving equipment is not needed, and the on-site deployment and adjustment efficiency is remarkably improved while the overall stability of the measuring device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building measurement technology, and in particular to a digital building measurement device based on three-dimensional scanning. Background Technology

[0002] Three-dimensional laser scanning technology, also known as real-scene replication technology, uses high-speed laser scanning to quickly acquire three-dimensional coordinate data of the surface of the object being measured over a large area with high resolution. It can quickly and massively collect spatial point information, providing a new technical means for rapidly building three-dimensional image models of objects.

[0003] The existing devices cannot adjust the height of the 3D laser scanner during operation, so staff need to take multiple measurements to complete the measurement.

[0004] A Chinese patent discloses a 3D scanning digital building measurement device (authorization announcement number CN221424422U). This patented technology allows for the adjustment of the entire support mechanism's height through the setting of an adjustment component. When the height of the scanning camera needs adjustment, the adjustment component can be activated, driving the support frame to rotate along the connecting rod, thereby adjusting the support rod and support frame to a suitable angle. At this time, as the support frame rotates, the height of the scanning camera also changes accordingly. After the measurement work is completed, the adjustment component can be activated again, causing the support frame to rotate to one side of the support rod. This facilitates the folding and storage of the support mechanism. Furthermore, the relatively low height of the support mechanism prevents the scanner casing from being damaged by external impacts due to its height, thus avoiding the possibility of the scanning camera being dropped and broken.

[0005] However, it has certain drawbacks: its height adjustment relies on the motor in the adjustment component to drive the bevel gear one and bevel gear two to mesh and transmit power, which in turn drives the connecting rod and the fixed rod to rotate and support the frame. This height adjustment method is relatively troublesome. It not only requires starting additional electrical equipment for operation, but its transmission structure (bevel gear set) is also relatively complex, making it inconvenient for quick on-site maintenance or troubleshooting, increasing the complexity of use and dependence on power supply. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a digital building measurement device based on three-dimensional scanning, which solves the problems mentioned in the background.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a digital building measurement device based on three-dimensional scanning, including a support rod, the upper end of which is fixedly connected to a scanner body, and a support tube is movably sleeved on the outside of the support rod, and a bracket mechanism is provided on the outside of the support tube;

[0008] The lower front surface of the support rod and the support tube are jointly provided with a lifting mechanism. The lifting mechanism includes a fixed frame. A rack is slidably connected to the inner rear surface of the fixed frame in the vertical direction. A fixing block is fixedly connected to the lower end of the rack. A rotating rod is rotatably connected through the left side surface of the fixed frame. A gear is fixedly sleeved on the outside of the rotating rod inside the fixed frame, and a ratchet is fixedly sleeved on the outside of the rotating rod on the left side of the fixed frame. A locking element is provided on the left side surface of the fixed frame in front of the rotating rod.

[0009] As a further technical solution of this utility model, the support mechanism includes a support plate and a support sleeve located below the support plate. A threaded sleeve is rotatably connected through the inside of the support plate, and multiple tie rods are rotatably connected evenly at the outer edge of the support plate. Multiple support legs are rotatably connected evenly on the outer surface of the support sleeve.

[0010] As a further technical solution of this utility model, the locking component includes a spring, with a locking block and a pawl fixedly connected to the front and rear ends of the spring, respectively, and a locking rod rotatably connected to the upper end of the pawl.

[0011] As a further technical solution of this utility model, the rear end of the fixed frame is fixedly connected to the lower front end of the support tube, the rear end of the fixed block is fixedly connected to the lower front surface of the support rod, the gear is located in front of the rack, and the gear is meshed with the rack.

[0012] As a further technical solution of this utility model, the support sleeve is fixedly sleeved on the outside of the support tube, the screw sleeve is threadedly sleeved on the outside of the support tube, the number of the pull rod and the support leg are equal, and the lower end of the pull rod is rotatably connected to the upper surface of the support leg.

[0013] As a further technical solution of this utility model, the pawl is attached to the ratchet, and the locking block and the locking rod are both fixed to the left side surface of the fixed frame.

[0014] This invention provides a digital building measurement device based on three-dimensional scanning, which has the following advantages compared with the prior art:

[0015] This design presents a digital building measurement device based on 3D scanning. The support mechanism utilizes a screw sleeve, support plate, and linkage between the support legs and the support rod to achieve rapid and stable support. Furthermore, the lifting mechanism employs a rack, gear, ratchet, and pawl to achieve stepless adjustment and reliable locking of the support rod and scanner body height. This height adjustment method is simple in structure and intuitive to operate; simply pull up the support rod or release the pawl to lower it. No additional power drive equipment is required. While ensuring the overall stability of the measurement device, it significantly improves the efficiency of on-site deployment and adjustment, facilitating rapid initiation of 3D scanning for digital measurement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a digital building measurement device based on 3D scanning.

[0017] Figure 2 This is a schematic diagram of the support mechanism in a digital building measurement device based on 3D scanning.

[0018] Figure 3 This is a schematic diagram of the lifting mechanism in a digital building measurement device based on 3D scanning.

[0019] Figure 4 This is a schematic diagram of the locking mechanism in a digital building measurement device based on 3D scanning.

[0020] In the diagram: 1. Support rod; 2. Scanner body; 3. Support tube; 4. Support mechanism; 5. Support plate; 6. Support sleeve; 7. Screw sleeve; 8. Pull rod; 9. Support leg; 10. Lifting mechanism; 11. Fixed frame; 12. Rack; 13. Fixed block; 14. Rotating rod; 15. Gear; 16. Ratchet; 17. Locking element; 18. Spring; 19. Locking block; 20. Pawl; 21. Locking rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution for a digital building measurement device based on three-dimensional scanning: it includes a support rod 1, a scanner body 2 fixedly connected to the upper end of the support rod 1, and a support tube 3 movably sleeved on the outside of the support rod 1. A support mechanism 4 is provided on the outside of the support tube 3. The support mechanism 4 includes a support plate 5 and a support sleeve 6 located below the support plate 5. The support sleeve 6 is fixedly sleeved on the outside of the support tube 3. A threaded sleeve 7 is rotatably connected through the inside of the support plate 5. The threaded sleeve 7 is threaded on the outside of the support tube 3. Multiple pull rods 8 are evenly rotatably connected to the outer edge of the support plate 5. Multiple support legs 9 are evenly rotatably connected to the outer surface of the support sleeve 6. The number of pull rods 8 and support legs 9 is equal, and the lower end of the pull rod 8 is rotatably connected to the upper surface of the support leg 9.

[0023] The scanner body 2 and the support rod 1 can be fixed together by bolts;

[0024] The scanner body 2 includes a housing, a 3D laser scanning head, and sensors, and has a built-in Bluetooth module that can transmit point cloud data to a mobile terminal in real time. The 3D laser scanning head emits a laser beam to scan the surrounding environment, quickly capturing the position information of countless points on the surface of an object. The sensors are used to determine the tilt / rotation angle of the scanning head and for precise positioning. It is a commonly used 3D scanner in the construction industry. Its working principle is as follows: the laser head emits a laser, which is reflected back from the surface of the building; the time it takes for the laser to travel back and forth is calculated to determine the distance; combined with the current angle of the scanning head and the precise position of the device, the 3D coordinates of each reflection point are calculated; countless points form the digital outline of the building, i.e., a 3D point cloud.

[0025] The number of pull rods 8 and support legs 9 is preferably three, and they correspond one-to-one;

[0026] Rotating the screw sleeve 7 can drive the support plate 5 to rise and fall, thereby pulling up or pushing down the support leg 9 through the pull rod 8 to open or close the bracket mechanism 4, making it easy to stand the entire device stably on the ground when in use, and easy to carry when not in use.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, a lifting mechanism 10 is provided at the lower front surface of both the support rod 1 and the support tube 3. The lifting mechanism 10 includes a fixed frame 11. The rear end of the fixed frame 11 is fixedly connected to the lower front end of the support tube 3. A rack 12 is slidably connected to the inner rear surface of the fixed frame 11 in the vertical direction. A fixing block 13 is fixedly connected to the lower end of the rack 12. The rear end of the fixing block 13 is fixedly connected to the lower front surface of the support rod 1. A rotating rod 14 is rotatably connected through the left side surface of the fixed frame 11. A gear 1 is fixedly sleeved on the outside of the rotating rod 14 inside the fixed frame 11. 5. Gear 15 is located in front of rack 12 and is meshed with rack 12. Ratchet 16 is fixedly sleeved on the outside of rotating rod 14 on the left side of fixed frame 11. Locking member 17 is provided on the left side surface of fixed frame 11 in front of rotating rod 14. Locking member 17 includes spring 18. Locking block 19 and pawl 20 are fixedly connected to the front and rear ends of spring 18, respectively. Pawl 20 is attached to ratchet 16. Locking rod 21 is rotatably connected to the upper end of pawl 20. Locking block 19 and locking rod 21 are both fixedly connected to the left side surface of fixed frame 11.

[0028] A slide bar is fixed to the rear surface of the rack 12. A slide groove with clearance fits the slide bar on the inner rear surface of the fixing frame 11. The slide bar is located in the slide groove, so that the rack 12 can move up and down stably without lateral offset.

[0029] Looking from left to right (left view), the pawl 20 is engaged with the ratchet 16, allowing the ratchet 16 and the lever 14 to rotate clockwise normally, but not counterclockwise; after pulling the pawl 20 away from the ratchet 16, the ratchet 16 and the lever 14 can rotate counterclockwise.

[0030] When the height of the scanner body 2 needs to be increased, simply pull the support rod 1 upwards (during this process, the rack 12 moves upwards, causing the gear 15 to rotate clockwise); due to the engagement of the pawl 20 and the ratchet 16, the scanner body 2 will not fall after the height is adjusted; when the height of the scanner body 2 needs to be decreased, hold the support rod 1, pull the pawl 20 away from the ratchet 16, and then slowly lower the support rod 1.

[0031] The working principle of this utility model is as follows: First, rotating the screw sleeve 7 drives the support plate 5 to rise, causing the pull rod 8 to pull the support leg 9, thus opening the bracket mechanism 4 and stabilizing it on the ground; then, pulling the support rod 1 upwards raises the scanner body 2 to the required height. At this time, the ratchet 16 and the pawl 20 automatically lock the height to prevent falling; if it is necessary to lower the height, hold the support rod 1, pull the pawl 20 to disengage from the ratchet 16, and then slowly lower the support rod 1; after the height is adjusted and the device is ensured to be stable, the scanner body 2 is started. It emits and receives lasers through the three-dimensional laser scanning head, and calculates the three-dimensional coordinates of the points on the building surface by combining sensor data, generating a three-dimensional point cloud and completing the digital measurement.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A digital building measurement device based on three-dimensional scanning, characterized in that, Includes a support rod (1), the upper end of which is fixedly connected to the scanner body (2), and the support rod (1) is movably sleeved with a support tube (3), and the support tube (3) is provided with a bracket mechanism (4) on its outside. The lower front surface of the support rod (1) and the support tube (3) are jointly provided with a lifting mechanism (10). The lifting mechanism (10) includes a fixed frame (11). A rack (12) is slidably connected to the inner rear surface of the fixed frame (11) in the up and down direction. A fixed block (13) is fixedly connected to the lower end of the rack (12). A rotating rod (14) is rotatably connected to the left side surface of the fixed frame (11). A gear (15) is fixedly sleeved on the outside of the rotating rod (14) located inside the fixed frame (11). A ratchet (16) is fixedly sleeved on the outside of the rotating rod (14) located on the left side of the fixed frame (11). A locking member (17) is provided on the left side surface of the fixed frame (11) in front of the rotating rod (14). The locking component (17) includes a spring (18), with a locking block (19) and a pawl (20) fixedly connected to the front and rear ends of the spring (18) respectively, and a locking rod (21) rotatably connected to the upper end of the pawl (20). The rear end of the fixed frame (11) is fixed to the lower front end of the support tube (3), the rear end of the fixed block (13) is fixed to the lower front surface of the support rod (1), the gear (15) is located in front of the rack (12), and the gear (15) is meshed with the rack (12).

2. The digital building measurement device based on three-dimensional scanning according to claim 1, characterized in that, The support mechanism (4) includes a support plate (5) and a support sleeve (6) located below the support plate (5). A threaded sleeve (7) is rotatably connected through the inside of the support plate (5), and multiple pull rods (8) are rotatably connected evenly at the outer edge of the support plate (5). Multiple support legs (9) are rotatably connected evenly on the outer surface of the support sleeve (6).

3. The digital building measurement device based on three-dimensional scanning according to claim 2, characterized in that, The support sleeve (6) is fixedly sleeved on the outside of the support tube (3), the screw sleeve (7) is threaded on the outside of the support tube (3), the number of the pull rod (8) and the support leg (9) are equal, and the lower end of the pull rod (8) is rotatably connected to the upper surface of the support leg (9).

4. The digital building measurement device based on three-dimensional scanning according to claim 1, characterized in that, The pawl (20) is attached to the ratchet (16), and the locking block (19) and locking rod (21) are both fixed to the left side surface of the fixed frame (11).

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