CN114017604B

CN114017604B - Three-dimensional laser scanner

Info

Publication number: CN114017604B
Application number: CN202111305004.7A
Authority: CN
Inventors: 王世伟; 赵斌; 王新宝
Original assignee: Jiangsu Huyun Laser Equipment Co ltd
Current assignee: Jiangsu Huyun Laser Equipment Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-08-02
Anticipated expiration: 2041-11-05
Also published as: CN114017604A

Abstract

The invention discloses a three-dimensional laser scanner with a loading and unloading structure, and belongs to the technical field of laser measurement. Comprises a bracket, a scanner and a leveling seat; the leveling seat is arranged on the bracket through 3 leveling bolts; the center of the upper end of the leveling seat is provided with a mounting hole, the lower end of the scanner is inserted into the mounting hole of the leveling seat in a matching way, and the leveling seat is provided with a linkage locking mechanism matched with the scanner. The invention adopts the linkage locking mechanism, and the unlocking of the three locking points can be realized by rotating the lock ring through the handle, so that the operation is convenient and quick; the locking wheel and the scanner locking groove are matched by adopting a conical surface, so that locking and unlocking are smooth, and the stability of the device can be improved by three-point positioning; the lock wheel adopts a split structure, the flexibility of the lock wheel is improved, and the connection stability of the device is further improved through small elastic deformation; when locking, the locking lever has little contained angle with the leveling seat is radial, improves locking performance, prevents to miss to bump the resilience.

Description

Three-dimensional laser scanner

Technical Field

The invention relates to the technical field of laser measurement, in particular to a three-dimensional laser scanner with a loading and unloading structure.

Background

The three-dimensional laser scanning system mainly comprises a three-dimensional laser scanner, a computer, a power supply system, a bracket and system supporting software. The three-dimensional laser scanner is used as a main component of a three-dimensional laser scanning system, comprises a laser emitter, a receiver, a time counter, a motor-controlled rotatable filter, a control circuit board, a microcomputer, a CCD (charge coupled device) machine, software and the like, and is a technical revolution following the GPS technology in the field of surveying and mapping. The method breaks through the traditional single-point measurement method and has the unique advantages of high efficiency and high precision. The three-dimensional laser scanning technology can provide three-dimensional point cloud data of the surface of a scanned object, and therefore, the three-dimensional laser scanning technology can be used for obtaining a high-precision high-resolution digital terrain model.

The three-dimensional laser scanner and the bracket usually adopt a detachable connection structure so as to be convenient for folding transportation and real-time installation on site. Regarding the connection structure of the three-dimensional laser scanner and the bracket, the chinese patent discloses a ground three-dimensional laser scanner fixing structure (cn209819123u, which includes a bracket assembly, a holder assembly, and a fixing assembly, the holder assembly includes a holder, a holder strip, an adjusting bolt, a spring seat, a return spring, a buckle, and a bottom pad, the inner side wall of the holder is fixedly connected with the holder strip, the outer surface of the holder is provided with the adjusting bolt, the inner side wall of the holder is provided with the spring seat, the inner part of the spring seat is provided with the return spring, by arranging the fixture block and the holder, the bottom of the holder is provided with the fixture block, the fixture block is inserted into the holder, the fixture block is extruded and aligned by the buckle in the holder under the action of the return spring, the fixture block is fixed by the adjusting bolt outside the holder, when mounting or dismounting, only the adjusting bolt needs to be twisted or loosened, the clamping block is inserted into or pulled out of the clamping seat to be installed or disassembled, so that the trouble that the clamping block needs to be aligned to be installed is avoided, and convenience is brought to a user.

The defects of the technology are as follows:

1. when the assembly and disassembly are carried out, the adjusting bolts at two sides need to be screwed, so that the operation is complicated; the adjusting bolt is matched with the blind hole in the clamping block, the position precision requirement is high, a gap is easily generated in matching, and finally the laser scanner is possibly connected unstably;

2. under reset spring's effect, extrude the fixture block through both sides buckle, this kind of fixed knot constructs not firm, rocks easily.

Disclosure of Invention

In order to solve the technical problems, the invention provides the three-dimensional laser scanner which is simple to disassemble and stable in connection.

The invention is realized by the following technical scheme: comprises a bracket, a scanner and a leveling seat; the leveling seats are installed on the bracket through 3 leveling bolts; the center of the upper end of the leveling seat is provided with a mounting hole, the lower end of the scanner is inserted into the mounting hole of the leveling seat in a matching way, and the leveling seat is provided with a linkage locking mechanism matched with the scanner; the leveling seat is provided with three radial rectangular holes which are uniformly distributed around the axis of the leveling seat, and the radial rectangular holes are communicated with the mounting holes and the outer circumferential surface of the leveling seat; the linkage locking mechanism comprises a locking ring which is rotatably sleeved on the outer circumferential surface of the leveling seat and a locking rod which is hinged in the radial rectangular hole; one end of the lock rod close to the mounting hole is provided with a lock wheel; a limiting groove is formed in the inner wall of the locking ring, and one end, close to the locking ring, of the locking rod is located in the limiting groove; a spring is arranged between the locking ring and the leveling seat and provides a clockwise rotating thrust for the locking ring; the circumference surface of the lower end of the scanner is provided with a circle of locking groove, and the periphery of the locking wheel is matched with the locking groove of the scanner.

It further comprises the following steps: the lock wheel comprises a small shaft, an upper wheel body and a lower wheel body which are fixedly arranged on the small shaft; a gap is reserved between the upper wheel body and the lower wheel body, and matching surfaces of the upper wheel body, the lower wheel body and the scanner locking groove are conical surfaces.

The radial rectangular hole side wall is provided with an arc-shaped sliding groove, and two ends of the small shaft are located in the arc-shaped sliding groove.

One end of the lock rod close to the lock ring is sleeved on a small shaft at a position between the upper wheel body and the lower wheel body.

The outer circumferential surface of the leveling seat is provided with a circle of sunken grooves, the inner wall of the locking ring is provided with protruding steps, and the locking ring steps are installed in the sunken grooves of the leveling seat in a sliding fit mode.

And a handle is fixed outside the lock ring.

The middle part of the lock rod is arranged in the radial rectangular hole through a rotating shaft.

When the periphery of the lock wheel is matched with and enters the lock groove of the scanner, the included angle between the lock rod and the diameter of the leveling seat penetrating through the lock wheel is 5-10 degrees.

The bottom of the leveling seat mounting hole is provided with a boss which abuts against the lower end face of the scanner.

Compared with the prior art, the invention has the beneficial effects that: the linkage locking mechanism is adopted, the locking ring is rotated through the handle, the unlocking of the three locking points can be realized, and the operation is convenient and rapid; the locking wheel and the scanner locking groove are matched by adopting a conical surface, so that locking and unlocking are smooth, and the stability of the device can be improved by three-point positioning; the lock wheel adopts a split structure, the flexibility of the lock wheel is improved, and the connection stability of the device is further improved through small elastic deformation; when locking, the locking lever has little contained angle with the leveling seat is radial, improves locking performance, prevents to miss to bump the resilience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view at B in FIG. 1;

FIG. 3 is a view from A-A of FIG. 2 (the interlocking locking mechanism in a locked state);

FIG. 4 is a schematic view of the linked locking mechanism when the lock is unlocked;

FIG. 5 is a schematic view of a lock wheel configuration;

in the figure: 1. a support; 2. a scanner; 21. locking the groove; 3. a leveling seat; 31. mounting holes; 32. a radial rectangular hole; 321. an arc-shaped chute; 33. sinking a groove; 34. a boss; 4. a linkage locking mechanism; 41. a locking ring; 42. a lock lever; 43. a lock wheel 431 and a small shaft; 432. an upper wheel body; 433. a lower wheel body; 44. a limiting groove; 45. a spring; 46. a rotating shaft; 5. leveling bolts; 6. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, a three-dimensional laser scanner includes a bracket 1, a scanner 2, and a leveling base 3, and the leveling base 3 is mounted on the bracket 1 by 3 leveling bolts 5.

The center of the upper end of the leveling seat 3 is provided with a mounting hole 31, and the bottom of the mounting hole 31 is provided with a boss 34. The lower end of the scanner 2 is cylindrical, the lower end of the scanner 2 is inserted into the mounting hole 31 of the leveling seat 3 in a matching way, and the boss 34 abuts against the lower end face of the scanner 2.

The interlocking lock mechanism 4 comprises a lock ring 41, a lock rod 42 and a lock wheel 43;

the configuration shown in figures 3 and 4 is one of three halves of the overall interlocking locking mechanism 4,

three radial rectangular holes 32 are formed in the leveling seat 3, the radial rectangular holes 32 are uniformly distributed around the axis of the mounting hole 31 of the leveling seat 3, and two ends of each radial rectangular hole 32 are respectively communicated with the mounting hole 31 and the outer circumferential surface of the leveling seat 3. The middle part of the lock rod 42 is arranged in the radial rectangular hole 32 through a rotating shaft 46, one end of the lock rod 42 close to the mounting hole 31 is provided with a lock wheel 43, and one end of the lock rod 42 close to the locking ring 41 is arranged in a limiting groove 44 on the inner wall of the locking ring 41.

The lock wheel 43 includes a small shaft 431, and an upper wheel body 432 and a lower wheel body 433 are fixedly mounted on the small shaft 431. A gap is left between the upper wheel body 432 and the lower wheel body 433, and one end of the lock rod 42 close to the lock ring 41 is rotatably sleeved on the small shaft 431 at a position between the upper wheel body 432 and the lower wheel body 433. Arc-shaped sliding grooves 321 corresponding to the two ends of the small shaft 431 are formed in the side wall of the radial rectangular hole 32, and the two ends of the small shaft 431 are located in the arc-shaped sliding grooves 321. The matching surfaces of the upper wheel 432, the lower wheel 433 and the locking groove 21 of the scanner 2 are conical surfaces. A circle of locking grooves 21 are formed on the circumferential surface of the lower end of the scanner 2, and the tapered surfaces on the peripheries of the upper wheel body 432 and the lower wheel body 433 are matched to enter the locking grooves 21 of the scanner 2. The lock wheel 43 adopts a split structure, so that the flexibility of the lock wheel is improved, and the connection stability of the device is improved through small elastic deformation.

A circle of sunken grooves 33 are formed in the outer circumferential surface of the leveling seat 3, protruding steps are arranged on the inner wall of the locking ring 41, and the steps of the locking ring 41 are installed in the sunken grooves 33 of the leveling seat 3 in a sliding fit mode. The inner wall of the locking ring 41 is provided with a spring installation groove, two ends of the spring 45 are respectively and correspondingly connected with the locking ring 41 and the leveling seat 3, the spring 45 provides the locking ring 41 with clockwise rotating thrust, and self-locking is realized through the spring thrust. A handle 6 is externally fixed to the lock ring 41 to facilitate rotational manipulation of the lock ring 41. As shown in FIG. 3, when the periphery of the lock wheel 43 is fitted into the lock groove 21 of the scanner 2, the included angle between the lock rod 42 and the diameter of the leveling seat 3 passing through the lock wheel 43 is 5-10 degrees, and the design of the small included angle can improve the locking performance of the lock rod and prevent the mistaken collision and rebound.

The working principle is as follows:

referring to fig. 3, after the lower end of the scanner 2 is inserted into the mounting hole 31 of the leveling seat 3 in a matching manner, the lock ring 41 toggles the lock rod 42 under the thrust action of the spring 45, and the end of the lock rod 42 drives the lock wheel 43 to enter the lock groove 21 of the scanner 2, so as to lock the scanner 2;

referring to fig. 4, when unlocking is required, lock ring 41 is rotated counterclockwise by handle 6, lock ring 41 toggles lock lever 42, and the end of lock lever 42 is separated from lock slot 21 of scanner 2, so as to unlock scanner 2.

In the embodiment, the linkage locking mechanism is adopted, the unlocking of the three locking points can be realized by rotating the lock ring through the handle, and the operation is convenient and quick; the locking wheel and the scanner locking groove are matched by conical surfaces, so that locking and unlocking are smooth, and the stability of the device can be improved by three-point positioning.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A three-dimensional laser scanner comprises a bracket (1), a scanner (2) and a leveling seat (3); the leveling seat (3) is arranged on the bracket (1) through 3 leveling bolts (5);

the method is characterized in that:

a mounting hole (31) is formed in the center of the upper end of the leveling seat (3), the lower end of the scanner (2) is inserted into the mounting hole (31) of the leveling seat (3) in a matched mode, and a linkage locking mechanism (4) matched with the scanner (2) is arranged on the leveling seat (3);

three radial rectangular holes (32) uniformly distributed around the axis of the leveling seat (3) are formed in the leveling seat (3), and the radial rectangular holes (32) are communicated with the mounting hole (31) and the outer circumferential surface of the leveling seat (3);

the linkage locking mechanism (4) comprises a locking ring (41) which is rotatably sleeved on the outer circumferential surface of the leveling seat (3) and a locking rod (42) which is hinged in the radial rectangular hole (32); one end of the lock rod (42) close to the mounting hole (31) is provided with a lock wheel (43); a limiting groove (44) is formed in the inner wall of the locking ring (41), and one end, close to the locking ring (41), of the locking rod (42) is located in the limiting groove (44); a spring (45) is arranged between the locking ring (41) and the leveling seat (3), and the spring (45) provides a clockwise rotating thrust for the locking ring (41);

a circle of locking groove (21) is formed in the circumferential surface of the lower end of the scanner (2), and the periphery of the locking wheel (43) is matched with the locking groove (21) of the scanner (2).

2. The three-dimensional laser scanner according to claim 1, characterized in that: the lock wheel (43) comprises a small shaft (431), an upper wheel body (432) and a lower wheel body (433) which are fixedly arranged on the small shaft (431); a gap is reserved between the upper wheel body (432) and the lower wheel body (433), and matching surfaces of the upper wheel body (432) and the lower wheel body (433) and the locking groove (21) of the scanner (2) are conical surfaces.

3. The three-dimensional laser scanner according to claim 2, characterized in that: arc-shaped sliding grooves (321) are formed in the side walls of the radial rectangular holes (32), and two ends of the small shaft (431) are located in the arc-shaped sliding grooves (321).

4. The three-dimensional laser scanner according to claim 2, characterized in that: one end of the lock rod (42) close to the lock ring (41) is sleeved on a small shaft (431) at a position between the upper wheel body (432) and the lower wheel body (433).

5. The three-dimensional laser scanner according to claim 1, characterized in that: a circle of sunken grooves (33) are formed in the outer circumferential surface of the leveling seat (3), protruding steps are arranged on the inner wall of the locking ring (41), and the steps of the locking ring (41) are installed in the sunken grooves (33) of the leveling seat (3) in a sliding fit mode.

6. The three-dimensional laser scanner according to claim 1, characterized in that: the handle (6) is fixed outside the lock ring (41).

7. The three-dimensional laser scanner according to claim 1, characterized in that: the middle part of the lock rod (42) is arranged in the radial rectangular hole (32) through a rotating shaft (46).

8. The three-dimensional laser scanner according to claim 1, characterized in that: when the periphery of the lock wheel (43) is matched into the lock groove (21) of the scanner (2), the included angle between the lock rod (42) and the diameter of the leveling seat (3) penetrating through the lock wheel (43) is 5-10 degrees.

9. The three-dimensional laser scanner according to claim 1, characterized in that: the bottom of the mounting hole (31) of the leveling seat (3) is provided with a boss (34), and the boss (34) abuts against the lower end face of the scanner (2).