Three-dimensional laser scanner for engineering quality detection and identification

Abstract

The invention relates to a three-dimensional laser scanner for engineering quality detection and identification, the three-dimensional laser scanner comprises a support, a connecting seat and a scanning head, the upper end of the support is provided with a mounting seat, the top end of the mounting seat is provided with a bearing end face, the top wall of the bearing end face is integrally provided with an insertion column, the connecting seat comprises a bottom sleeve, the bottom sleeve detachably sleeves the insertion column, the bottom end of the bottom sleeve is integrally provided with a bottom edge, and the bottom edge is provided with a through hole. The top end of the bottom sleeve is fixedly connected with a top ring through a screw, the top ring is detachably arranged on the inserting column in a sleeving mode, the vertical section of the bottom sleeve is sleeved with a buffering rubber sleeve, the buffering rubber sleeve is annular, the section of the buffering rubber sleeve is in a U shape, the buffering rubber sleeve is sleeved with a connecting ring, and the edge of an orifice of the connecting ring is embedded in the buffering rubber sleeve. The bottom edge and the top ring jointly clamp the upper side and the lower side of the buffering rubber sleeve, the connecting ring is fixedly connected with a connecting cover through a screw, and a connecting sleeve is integrally arranged on the top wall of the connecting cover. According to the three-dimensional laser scanner, the vibration degree of the scanning head can be reduced, so that looseness of optical devices in the three-dimensional laser scanner caused by frequent movement of the three-dimensional laser scanner for engineering quality detection and identification is avoided.

Description

Technical Field

[0001] The present invention relates to the field of laser scanners, and in particular to a three-dimensional laser scanner for engineering quality inspection and identification. Background Art

[0002] 3D laser scanning technology, a recent technology, has attracted increasing research attention in China. Utilizing the principle of laser ranging, it records the 3D coordinates, reflectivity, and texture information of a large number of densely packed points on the surface of an object. This allows for rapid reconstruction of a 3D model of the object and various other graphical data, including lines, surfaces, and volumes. Because 3D laser scanning systems can acquire a large number of data points on a target object, compared to traditional single-point measurement, 3D laser scanning technology has been hailed as a revolutionary technological breakthrough, evolving from single-point measurement to surface measurement. This technology has seen extensive application, exploration, and exploration in fields such as cultural heritage preservation, architecture, planning, civil engineering, factory renovation, interior design, building monitoring, traffic accident handling, legal evidence collection, disaster assessment, ship design, digital cities, and military analysis. A 3D laser scanning system consists of both data acquisition hardware and data processing software. Depending on the carrier, 3D laser scanning systems can be categorized as airborne, vehicle-mounted, ground-based, and handheld.

[0003] When it is necessary to scan a building or target that covers a large area, it is necessary to frequently move the 3D laser scanner used for engineering quality inspection and identification at the construction site. Since the scanning head is equipped with precision optical components, frequent movement of the 3D laser scanner used for engineering quality inspection and identification will cause the precision optical components in the scanning head to loosen, affecting the scanning accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide a three-dimensional laser scanner for engineering quality inspection and identification, which can reduce the degree of vibration of the scanning head, thereby avoiding the loosening of the optical components therein due to frequent movement of the three-dimensional laser scanner for engineering quality inspection and identification.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A three-dimensional laser scanner for engineering quality inspection and identification, comprising a bracket, a connecting seat and a scanning head. An installation seat is provided at the upper end of the bracket, a supporting end face is provided at the top of the installation seat, and a plug-in column is integrally provided on the top wall of the supporting end face. The connecting seat includes a bottom sleeve, the bottom sleeve is detachably sleeved on the plug-in column, a bottom edge is integrally provided at the bottom end of the bottom sleeve, a top ring is fixedly connected to the top end of the bottom sleeve by screws, the top ring is detachably sleeved on the plug-in column, a buffer rubber sleeve is sleeved on the vertical section of the bottom sleeve, the buffer rubber sleeve is annular, the cross section of the buffer rubber sleeve is in a C-shaped, a connecting ring is sleeved on the buffer rubber sleeve, the edge of the hole of the connecting ring is embedded in the buffer rubber sleeve, the bottom edge and the top ring jointly clamp the upper and lower sides of the buffer rubber sleeve, the connecting ring is fixedly connected with a connecting cover by screws, a connecting sleeve is integrally provided on the top wall of the connecting cover, the connecting sleeve is sleeved outside the plug-in column, and a gap is left between the inner wall of the connecting sleeve and the outer wall of the plug-in column. A fixed joint is fixedly connected to the bottom wall of the scanning head, two horizontal inserting rods are fixedly connected to the fixed joint, two horizontal inserting positioning holes are provided on the connecting sleeve, the horizontal inserting rods are slidably inserted through the corresponding horizontal inserting positioning holes, quick-release joints are sleeved at the ends of the two horizontal inserting rods, quick-lock screws are threadedly connected to the ends of the two horizontal inserting rods, the quick-lock screws and the connecting sleeve jointly clamp the quick-release joints, and the quick-release joints support the bottom wall of the scanning head.

[0007] Specifically, the scanning head is in a cuboid shape, a notch is provided in the middle of the scanning head, a sleeve is provided on the inner side wall of the upper part of the notch, the edge of the end of the sleeve is an elliptical edge, the end of the sleeve is a light outlet, and a camera is provided on the front wall of the scanning head.

[0008] Specifically, a leg joint is sleeved in the middle of the bracket, three support legs are hinged to the leg joint, and the support legs are composed of multiple rod bodies sleeved end to end.

[0009] Specifically, the top end of the bottom sleeve is fixedly connected to the top ring by multiple screws, and the multiple screws are evenly distributed around the central axis of the bottom sleeve.

[0010] Specifically, the connecting ring is connected to the connecting cover by multiple screws, and the multiple screws are evenly distributed around the central axis of the bottom sleeve.

[0011] Specifically, both the fixed joint and the quick-release joint are in a U-shaped.

[0012] Specifically, a threaded hole is provided in the middle of the end of the horizontal inserting rod, and the threaded hole is adapted to the threaded section of the quick-lock screw.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Since the edge of the hole of the connecting ring 24 is embedded in the buffer rubber sleeve 23, the bottom edge of the bottom sleeve 21 and the top ring 22 jointly clamp the upper and lower sides of the buffer rubber sleeve 23, the buffer rubber sleeve 23 has elasticity, and a gap is left between the inner wall of the connecting sleeve 251 and the outer wall of the plug-in column 112 ( Figure 2When the bracket is moved, even if the vibration of the bracket is transmitted to the bottom sleeve 21 (rotation pair), the vibration transmitted to the connecting ring 24, the connecting cover 25 and the scanning head 3 will be greatly reduced due to the obstruction of the tight buffer rubber sleeve 23, thereby avoiding the loosening of the precision optical components inside the scanning head 3 due to frequent movement of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 Stereoscopic images of 3D laser scanners for engineering quality inspection and appraisal;

[0017] Figure 2 Cutaway view of a 3D laser scanner used for engineering quality inspection and appraisal;

[0018] Figure 3 Exploded view of a 3D laser scanner used for engineering quality inspection and appraisal.

[0019] In the picture:

[0020] 11. Mounting seat; 111. Supporting end surface; 112. Connecting column; 12. Leg joint;

[0021] 2. Connecting seat; 21. Bottom sleeve; 22. Top ring; 23. Buffer rubber sleeve; 24. Connecting ring; 25. Connecting cover; 251. Connecting sleeve; 2511. Horizontal insertion positioning hole;

[0022] 3. Scanning head; 31. Fixed joint; 32. Horizontal insertion rod; 33. Quick-release joint; 34. Quick-lock screw; 35. Sleeve; 36. Camera. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See Figures 1 to 3 A three-dimensional laser scanner for engineering quality inspection and identification includes a bracket, a connecting seat 2 and a scanning head 3. The upper end of the bracket is provided with a mounting seat 11, the top of the mounting seat 11 is provided with a supporting end surface 111, and the top wall of the supporting end surface 111 is integrally provided with a plug-in column 112.

[0025] Connector 2 includes a bottom sleeve 21, which removably fits over plug-in post 112. The bottom end of bottom sleeve 21 is integrally formed with a bottom lip. A top ring 22 is screwed to the top of bottom sleeve 21 and removably fits over plug-in post 112. A buffer rubber sleeve 23 is fitted over the vertical section of bottom sleeve 21. This cushion rubber sleeve 23 is annular and has a U-shaped cross-section.

[0026] The cushioning rubber sleeve 23 is fitted with a connecting ring 24. The edge of the opening of the connecting ring 24 is embedded in the cushioning rubber sleeve 23. The bottom edge of the bottom sleeve 21 and the top ring 22 jointly clamp the upper and lower sides of the cushioning rubber sleeve 23. The connecting ring 24 is fixedly connected to the connecting cover 25 by screws. The top wall of the connecting cover 25 is integrally provided with a connecting sleeve 251. The connecting sleeve 251 is fitted over the outside of the plug post 112, leaving a gap between the inner wall of the connecting sleeve 251 and the outer wall of the plug post 112.

[0027] The bottom wall of the scanning head 3 is fixedly connected to a fixed joint 31, to which two transverse rods 32 are fixedly connected. A connecting sleeve 251 is provided with two transverse insertion positioning holes 2511, and the transverse rods 32 are slidably inserted into the corresponding transverse insertion positioning holes 2511. Quick-release joints 33 are sleeved at the ends of the two transverse rods 32. Quick-lock screws 34 are threadedly connected to the ends of the two transverse rods 32. The quick-lock screws 34 and the connecting sleeve 251 work together to clamp the quick-release joints 33, which support the bottom wall of the scanning head 3.

[0028] Specifically, the scanning head 3 is in the shape of a rectangular parallelepiped, with a notch in the middle and a sleeve 35 on the inner sidewall above the notch. The end edge of the sleeve 35 is an elliptical edge, and the end of the sleeve 35 is a light outlet. A camera 36 is provided on the front wall of the scanning head 3.

[0029] Specifically, a leg joint 12 is sleeved on the middle part of the bracket 1, and three supporting legs are hingedly connected to the leg joint 12. The supporting legs are composed of multiple rods sleeved end to end.

[0030] Specifically, the top end of the bottom sleeve 21 is fixedly connected to the top ring 22 by a plurality of screws, and the plurality of screws are evenly distributed around the central axis of the bottom sleeve 21 .

[0031] Specifically, the connecting ring 24 is connected to the cover 25 via a plurality of screws, and the plurality of screws are evenly distributed around the central axis of the bottom sleeve 21 .

[0032] Specifically, the fixed joint 31 and the quick-release joint 33 are both U-shaped.

[0033] Specifically, a threaded hole is provided in the middle of the end of the transverse rod 32 , and the threaded hole is adapted to the threaded section of the quick-lock screw 34 .

[0034] The working principle of the present invention is as follows:

[0035] Before assembly, the bracket, connector 2, scanning head 3, quick-release connector 33 and quick-lock screw 34 are placed separately in the storage box to save space. When 3D scanning is required at the construction site, the above components are assembled:

[0036] The connecting seat 2 is placed outside the plug post 112, so that 21 and the plug post 112 form a rotation pair, and a gap is left between the inner wall of the connecting sleeve 251 and the outer wall of the plug post 112 ( Figure 2 Then, the two transverse rods 32 are passed through the transverse insertion positioning holes 2511 of the connecting sleeve 251. The quick-release connector 33 is then sleeved over the protruding ends of the two transverse rods 32. The quick-lock screws 34 are then threadedly connected to the protruding ends of the transverse rods 32. The side wall of the connecting sleeve 251 and the quick-lock screws 34 jointly clamp the quick-release connector 33. This completes the installation of the three-dimensional laser scanner for engineering quality inspection and appraisal.

[0037] Since the opening edge of the connecting ring 24 is embedded in the buffer rubber sleeve 23, the bottom edge of the bottom sleeve 21 and the top ring 22 clamp the upper and lower sides of the buffer rubber sleeve 23 together, the tight buffer rubber sleeve 23 has elasticity, and a gap is left between the inner wall of the connecting sleeve 251 and the outer wall of the plug-in column 112 ( Figure 2 When the bracket is moved, even if the vibration of the bracket is transmitted to the bottom sleeve 21 (rotation pair), the vibration transmitted to the connecting ring 24, the connecting cover 25 and the scanning head 3 will be greatly reduced due to the obstruction of the tight buffer rubber sleeve 23, thereby avoiding the loosening of the precision optical components inside the scanning head 3 due to frequent movement of the bracket.

[0038] After completing the installation of the three-dimensional laser scanner for project quality inspection and appraisal, align the light outlet of the sleeve 35 with the target building, press the power button to start scanning, and the camera 36 is used to capture the reflected light.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A three-dimensional laser scanner for engineering quality inspection and appraisal, characterized by: It includes a bracket, a connecting seat and a scanning head. An installation seat is provided at the upper end of the bracket. A supporting end face is provided at the top of the installation seat. A plug-in column is integrally provided on the top wall of the supporting end face. The connecting seat includes a bottom sleeve which is detachably sleeved on the plug-in column. A bottom edge is integrally provided at the bottom end of the bottom sleeve. A top ring is fixedly connected to the top of the bottom sleeve by screws. The top ring is detachably sleeved on the plug-in column. A buffer rubber sleeve is sleeved on the vertical section of the bottom sleeve. The buffer rubber sleeve is annular and its cross-section is in a C-shaped. A connecting ring is sleeved on the buffer rubber sleeve. The edge of the hole of the connecting ring is embedded in the buffer rubber sleeve. The bottom edge and the top ring jointly clamp the upper and lower sides of the buffer rubber sleeve. The connecting ring is fixedly connected with a connecting cover by screws. A connecting sleeve is integrally provided on the top wall of the connecting cover. The connecting sleeve is sleeved outside the plug-in column. A gap is left between the inner wall of the connecting sleeve and the outer wall of the plug-in column. The bottom wall of the scanning head is fixedly connected with a fixed joint. Two horizontal inserting rods are fixedly connected to the fixed joint. Two horizontal inserting positioning holes are provided on the connecting sleeve. The horizontal inserting rods are slidably inserted through the corresponding horizontal inserting positioning holes. Quick-release joints are sleeved at the ends of the two horizontal inserting rods. Quick-lock screws are threadedly connected to the ends of the two horizontal inserting rods. The quick-lock screws and the connecting sleeve jointly clamp the quick-release joints. The quick-release joints support the bottom wall of the scanning head.

2. The three-dimensional laser scanner for engineering quality inspection and appraisal according to claim 1, characterized in that: The scanning head is in a cuboid shape. A notch is provided in the middle of the scanning head. A sleeve is provided on the inner side wall of the upper part of the notch. The edge at the end of the sleeve is an elliptical edge. The end of the sleeve is a light outlet. A camera is provided on the front wall of the scanning head.

3. The three-dimensional laser scanner for engineering quality inspection and appraisal according to claim 1 is characterized in that: A leg joint is sleeved in the middle of the bracket. Three support legs are hinged to the leg joint. The support legs are composed of multiple rod bodies sleeved end to end.

4. The three-dimensional laser scanner for engineering quality inspection and appraisal according to claim 1 is characterized in that: The top of the bottom sleeve is fixedly connected to the top ring by multiple screws. The multiple screws are evenly distributed around the central axis of the bottom sleeve.

5. The three-dimensional laser scanner for engineering quality inspection and appraisal according to claim 1 is characterized in that: The connecting ring is connected to the connecting cover by multiple screws. The multiple screws are evenly distributed around the central axis of the bottom sleeve.

6. The three-dimensional laser scanner for engineering quality inspection and appraisal according to claim 1 is characterized in that: Both the fixed joint and the quick-release joint are in a U-shaped.

7. The three-dimensional laser scanner for engineering quality inspection and appraisal according to claim 1 is characterized in that: A threaded hole is provided in the middle of the end of the horizontal inserting rod. The threaded hole is adapted to the threaded section of the quick-lock screw.

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