CN220187702U - Three-dimensional survey device of topography - Google Patents

Abstract

The utility model belongs to the technical field of terrain surveying, and provides a terrain three-dimensional surveying device which comprises a telescopic component, a support frame assembly and a surveying device, wherein the telescopic component is arranged on the support frame assembly; the telescopic component comprises a column body, a first screw rod, a guide shaft, a driving component, a mounting seat and an extension sleeve; the cylinder is connected with the support frame assembly, and a driving cavity, a first sliding cavity and a second sliding cavity are arranged in the cylinder; extension sleeve sliding mounting in inside the first sliding chamber, the lower extreme of first screw rod stretch into the drive intracavity and with drive assembly is connected, first screw rod with extension sleeve's inner wall threaded connection, guiding axle sliding mounting in the second sliding chamber, the guiding axle with the upper end of first screw rod respectively with the mount pad is connected, through the design of telescopic assembly and support frame assembly, has realized laser scanner's altitude mixture control for the altitude mixture control of topography survey is bigger for the altitude mixture range is stronger, and the adaptability is stronger.

Description

Three-dimensional survey device of topography

Technical Field

The utility model belongs to the technical field of terrain surveying, and particularly relates to a terrain three-dimensional surveying device.

Background

The device for three-dimensional surveying of topography plays an important role in a plurality of industries such as geological surveying, constructional engineering, environmental research and the like. By using such devices, professionals are able to obtain three-dimensional data and images of the terrain, which has vital reference value for subsequent planning and design work. In recent years, with the development of technology, terrain stereoscopic surveying equipment has been converted from traditional manual or semi-automatic equipment to modern fully automatic equipment, which greatly improves the efficiency and accuracy of surveying.

In the prior art, a terrain stereotactic survey apparatus typically includes a stationary support frame and a laser scanner. By means of these devices, accurate mapping of the terrain can be performed. However, these devices are in most cases of a fixed height and can only be scanned at the same height. Thus, when scans of different heights are required, manual adjustments to the apparatus are required, which undoubtedly increases the complexity and effort of the operation.

The main disadvantage of the prior art is that the height of the equipment is not adjustable, and the complex and changeable practical survey requirements cannot be flexibly dealt with. In certain situations, such as large terrain relief, wide coverage of the target area, etc., a single-height scan may not be able to obtain complete and accurate data. In addition, since the three-dimensional survey of the terrain is often carried out in the field, the ground is uneven, the prior art is generally placed on the ground through a bracket, the stability is poor, and based on the problems, we provide a three-dimensional survey device of the terrain.

Disclosure of Invention

The utility model provides a terrain stereo surveying device, which aims to solve the technical problems to be solved by the background technology.

The utility model is realized in such a way that the terrain three-dimensional surveying device comprises a telescopic component, a support frame assembly and a surveying device; the surveying device is connected with the support frame assembly through a telescopic component, and the telescopic component comprises a column body, a first screw rod, a guide shaft, a driving component, a mounting seat and an extension sleeve; the cylinder is connected with the support frame assembly, and a driving cavity, a first sliding cavity and a second sliding cavity are arranged in the cylinder; the extension sleeve is slidably mounted in the first sliding cavity, the lower end of the first screw rod extends into the driving cavity and is connected with the driving assembly, the first screw rod is in threaded connection with the inner wall of the extension sleeve, the guide shaft is slidably mounted in the second sliding cavity, the guide shaft and the upper end of the first screw rod are respectively connected with the mounting seat, and the surveying device is connected with the mounting seat.

Optionally, the support frame assembly includes a main body and at least one support bar, the support bar being connected with the main body for providing a supporting force to the main body.

Optionally, the upper surface of the main body is provided with at least one hinging seat, and the supporting rod comprises a connecting seat, a second screw rod, a threaded sleeve and a fixing part; the connecting seat is hinged with the hinging seat, the second screw rod is fixedly connected with the connecting seat, the threaded sleeve is sleeved on the second screw rod, the second screw rod is in threaded connection with the inner wall of the threaded sleeve, and the fixing part is fixedly connected with one end, far away from the connecting seat, of the threaded sleeve.

Optionally, one end of the fixing portion, which is far away from the threaded sleeve, is conical, and a spiral blade is arranged on the surface of the fixing portion.

Optionally, the mount is rotatably connected to the survey apparatus.

Optionally, the surveying device comprises a base, a laser scanner and a motor; the base is rotationally connected with the mounting seat, the laser scanner is hinged with the base, and the motor is connected with the laser scanner.

Optionally, the driving assembly comprises a driving shaft, a driving bevel gear, a driven bevel gear and a rotating wheel; the driving bevel gear is arranged on the driving shaft, the driven bevel gear is arranged at the lower end of the first screw rod, the driving bevel gear is meshed with the driven bevel gear, and one end of the driving shaft, which is positioned outside the driving cavity, is fixedly connected with the rotating wheel.

The utility model has the beneficial effects that the height adjustment of the laser scanner is realized through the design of the telescopic component and the support frame assembly, so that the height range of the terrain survey is larger, and the adaptability is stronger. This not only meets the survey requirements of different terrains and environments, but also more accurately obtains three-dimensional information of the terrains. The support frame assembly forms an approximately triangular structure by using at least one support rod, so that the stability of the device is ensured. The spiral blade design makes the fixing effect of the device in soil stronger, and compared with the structure that the device is directly placed on the ground through the frame body in the prior art, the device ensures the stability in the use process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a terrain stereo surveying device provided by the utility model;

FIG. 2 is an exploded view of a stereoscopic survey apparatus for terrain provided by the present utility model;

FIG. 3 is a schematic cross-sectional structural view of a telescopic assembly of a terrain stereotactic survey apparatus provided by the present utility model;

fig. 4 is a schematic perspective view of a support rod of the topographic stereo surveying device according to the present utility model.

The reference numerals are as follows:

1-telescoping assembly, 11-cylinder, 111-drive chamber, 112-first sliding chamber, 113-second sliding chamber, 12-first screw, 13-guide shaft, 14-drive assembly, 141-drive shaft, 142-drive bevel gear, 143-driven bevel gear, 144-runner, 15-mount, 16-extension sleeve, 2-support frame assembly, 21-body, 22-support bar, 221-connection mount, 222-second screw, 223-threaded sleeve, 224-fixture, 225-helical blade, 23-hinge mount, 3-survey device, 31-base, 32-laser scanner, 33-motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The terms "first" and "second" and the like in this disclosure are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps, operations, components, or modules is not limited to the particular steps, operations, components, or modules listed but may optionally include additional steps, operations, components, or modules inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As shown in fig. 1 to 4, a three-dimensional surveying device for a terrain of an exemplary embodiment, which includes a telescopic assembly 1, a support frame assembly 2 and a surveying device 3. The surveying device 3 is connected to the support frame assembly 2 by means of a telescopic assembly 1. The telescopic assembly 1 has a column 11, a first screw 12, a guide shaft 13, a drive assembly 14, a mount 15 and an extension sleeve 16.

The column 11 is connected with the support frame assembly 2, and a driving cavity 111, a first sliding cavity 112 and a second sliding cavity 113 are formed in the column. The extension cannula 16 is slidable within the first sliding lumen 112. The lower end of the first screw 12 extends into the drive chamber 111 and is connected to the drive assembly 14. The first screw 12 is threadedly coupled to the inner wall of the extension sleeve 16. The guide shaft 13 is slidable in the second sliding chamber 113, and the upper ends of the guide shaft 13 and the first screw 12 are connected to the mount 15. The surveying device 3 is connected to a mounting base 15.

In actual use, the support frame assembly 2 is set on the ground, the equipment is fixed, and then the height of the surveying device 3 is adjusted according to the requirement. The driving assembly 14 drives the first screw 12 to rotate, and the rotation of the first screw 12 drives the extension sleeve 16 to move, so as to drive the mounting seat 15 to move. As the mount 15 moves, the guide shaft 13 slides within the second sliding chamber 113, providing guidance for the mount 15. The up-and-down movement of the mounting base 15 drives the surveying device 3 to move up and down, so that the height of the surveying device 3 is adjusted.

As an example, the support bracket assembly 2 includes a main body 21 and at least one support bar 22. These support rods 22 are connected to the main body 21 and provide stable support for the main body 21.

As an example, at least one hinge seat 23 is designed on the upper surface of the main body 21. Each support bar 22 includes a connection seat 221, a second screw 222, a threaded sleeve 223, and a fixing portion 224. The connection base 221 is connected to the hinge base 23 by a hinge, and the second screw 222 is fixed to the connection base 221. The threaded sleeve 223 is disposed on the second screw rod 222, and the second screw rod 222 is connected with the inner wall of the threaded sleeve 223 in a threaded manner. The fixing portion 224 is fixedly coupled to an end of the threaded sleeve 223, which is remote from the coupling seat 221.

In a particular application, the support bar 22 is angled with respect to the body 21 and then the threaded sleeve 223 is rotated to move it toward the hinge seat 23. This causes the fixing portion 224 to move with the threaded bushing 223 until the fixing portion 224 is inserted into the ground, so that the ground, the support bar 22 and the main body 21 form an approximate triangle, thereby securing the stability of the apparatus. As shown in fig. 1 and 2, the number of support bars 22 may be four. The fixing portions 224 of the four support rods 22 may be inserted into the ground to stabilize the apparatus when the apparatus is in use. When the apparatus is required to be moved, only the screw sleeve 223 is rotated in the reverse direction so that the fixing portion 224 is separated from the ground, thereby conveniently accomplishing the disassembly of the apparatus.

As an example, as a specific embodiment, the distal end of the fixation portion 224 is conical, being held a distance from one end of the threaded sleeve 223. On the surface of the fixing portion 224, a helical blade 225 is designed. In practice, the helical blades 225 will be inserted into the soil in a helical fashion as the anchor 224 rotates and enters the ground, which design effectively increases the stability and tensile resistance of the anchor 224.

When the fixing portion 224 is inserted into the soil, the spiral blade 225 forms a spiral contact surface with the soil. In this state, the fixing portion 224 can be taken out of the ground only by reverse rotation, otherwise, the fixing portion 224 cannot be pulled out directly unless the soil is lifted. This design effectively ensures the stability of the device and prevents displacement of the device due to unexpected pulling forces.

As an example, the mount 15 is rotatably connected to the surveying device 3. In particular, by rotating the surveying device 3, the orientation of the surveying device 3 can be adjusted. In practice, the device is fixed to the survey site and the survey direction of the survey device 3 is then adjusted by rotating the survey device 3.

As an example, the topographic stereosurveying device 3 comprises a base 31, a laser scanner 32 and a motor 33. The connection between the base 31 and the mounting base 15 is a rotational connection, which enables the base 31 to rotate. The laser scanner 32 is connected to the base 31 in an articulated manner, which allows the laser scanner 32 to make a range of angular adjustments. The motor 33 is connected to the laser scanner 32 and mainly serves to drive the laser scanner 32 to rotate.

Specifically, the motor 33 drives the laser scanner 32 to rotate, so that the scanning angle of the laser scanner 32 can be adjusted according to actual requirements, the scanning range is more flexible, and the practicability of the local terrain stereosurvey device is further improved. Referring to fig. 1 and 2, details of how the motor 33 drives the laser scanner 32 to rotate are described in detail.

Still further, the laser scanner 32 may be various types and models of laser scanners, such as, but not limited to, phase-difference LiDAR (Phase Difference LiDAR), pulse LiDAR (Pulse LiDAR), laser doppler radar (Laser Doppler LiDAR), single-photon LiDAR (Single Photon LiDAR), geometric beam forming LiDAR (Geometric Waveform Shaping LiDAR), and the like. Each type of laser scanner has the characteristics of the laser scanner, and can be selected according to actual needs and application scenes.

The principle of terrain surveying is mainly based on the working principle of lidar. The laser radar can calculate the distance by transmitting laser pulses and then receiving the reflected pulses and measuring the time of flight of the pulses. If the direction and angle information of the laser scanner are recorded together during the laser pulse transmission and reception, three-dimensional coordinate information of each point can be obtained, thereby generating a three-dimensional model of the terrain.

By way of example, the drive assembly 14 includes a drive shaft 141, a drive bevel gear 142, a driven bevel gear 143, and a turning wheel 144; the driving shaft 141 extends into the driving cavity 111, the driving bevel gear 142 is mounted on the driving shaft 141, the driven bevel gear 143 is mounted at the lower end of the first screw 12, the driving bevel gear 142 and the driven bevel gear 143 are in meshed connection, and one end of the driving shaft 141, which is located outside the driving cavity 111, is fixedly connected with the rotating wheel 144. Specifically, the rotating wheel 144 is rotated, the rotating wheel 144 drives the driving shaft 141 to rotate, the driving shaft 141 drives the driving bevel gear 142 to rotate, the driving bevel gear 142 drives the driven bevel gear 143 to rotate, and the driven bevel gear 143 drives the first screw 12 to rotate, so that the first screw 12 is driven.

In the case of a topography survey, the term "three-dimensional" means that the measurement results include not only planar information of the ground surface, such as length and width, but also height information, to generate a three-dimensional model of the topography. While conventional terrain surveying methods may only obtain two-dimensional maps, stereo surveys may obtain complete three-dimensional shapes of terrain, including three-dimensional information of heights, depths, volumes, etc. of natural features such as mountains, valleys, rivers, etc.

The utility model adopts a laser scanner to survey. The laser scanner can accurately calculate the distance of the terrain by emitting laser pulses and measuring the time of the laser pulses reflected back, thereby acquiring three-dimensional information of the terrain. Meanwhile, the height and the angle of the utility model are adjustable, so that the laser scanner can scan at various different heights and angles, and the three-dimensional information of the terrain can be obtained more comprehensively. Thus, the present utility model enables a stereo survey of terrain.

The exemplary embodiments of the present utility model may be combined with each other, and exemplary embodiments obtained by combining also fall within the scope of the present utility model.

The principles and embodiments of the present utility model have been described with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims (7)

1. The terrain three-dimensional surveying device is characterized by comprising a telescopic component (1), a support frame assembly (2) and a surveying device (3); the surveying device (3) is connected with the support frame assembly (2) through a telescopic component (1), and the telescopic component (1) comprises a column body (11), a first screw rod (12), a guide shaft (13), a driving component (14), a mounting seat (15) and an extension sleeve (16); the cylinder (11) is connected with the support frame assembly (2), and a driving cavity (111), a first sliding cavity (112) and a second sliding cavity (113) are arranged in the cylinder (11); extension sleeve (16) slidable mounting in inside first sliding chamber (112), the lower extreme of first screw rod (12) stretches into in driving chamber (111) and with drive assembly (14) are connected, first screw rod (12) with the inner wall threaded connection of extension sleeve (16), guiding axle (13) slidable mounting in second sliding chamber (113), guiding axle (13) with the upper end of first screw rod (12) respectively with mount pad (15) are connected, survey device (3) with mount pad (15) are connected.

2. A terrain stereosurveying apparatus according to claim 1, wherein the support frame assembly (2) comprises a main body (21) and at least one support bar (22), the support bar (22) being connected to the main body (21) for providing support to the main body (21).

3. The terrain stereo surveying device according to claim 2, characterized in that the upper surface of the main body (21) is provided with at least one hinge seat (23), the support bar (22) comprising a connection seat (221), a second screw (222), a threaded sleeve (223) and a fixing portion (224); the connecting seat (221) is hinged with the hinging seat (23), the second screw rod (222) is fixedly connected with the connecting seat (221), the threaded sleeve (223) is sleeved on the second screw rod (222), the second screw rod (222) is in threaded connection with the inner wall of the threaded sleeve (223), and the fixing part (224) is fixedly connected with one end, far away from the connecting seat (221), of the threaded sleeve (223).

4. A terrain stereosurveying apparatus according to claim 3, characterized in that the end of the fixing portion (224) remote from the threaded sleeve (223) is conical, the surface of the fixing portion (224) being provided with helical blades (225).

5. A terrain stereo surveying device according to claim 1, characterized in that the mounting (15) is rotatably connected with the surveying device (3).

6. A terrain stereosurveying device according to claim 5, characterized in that the surveying device (3) comprises a base (31), a laser scanner (32) and a motor (33); the base (31) is rotationally connected with the mounting seat (15), the laser scanner (32) is hinged with the base (31), and the motor (33) is connected with the laser scanner (32).

7. The terrain stereosurveying apparatus of claim 1, wherein the drive assembly (14) comprises a drive shaft (141), a drive bevel gear (142), a driven bevel gear (143) and a runner (144); the driving shaft (141) stretches into the driving cavity (111), the driving bevel gear (142) is installed on the driving shaft (141), the driven bevel gear (143) is installed at the lower end of the first screw (12), the driving bevel gear (142) is meshed with the driven bevel gear (143), and one end of the driving shaft (141) located outside the driving cavity (111) is fixedly connected with the rotating wheel (144).