Laser marking instrument

Abstract

The utility model relates to a laser marking instrument. A pair of light beams simultaneously output by a first laser generator and a second laser generator sequentially pass through a total reflection prism assembly and a conscope and then are diverged towards the periphery by 360 degrees; wherein the pair of light beams passes through the total reflection prism assembly to form light beams which are distributed on the same central axis and have cross-shaped or X-shaped sections. The power of the cross-shaped or X-shaped light beam section at all angles around is uniform, so that the light beam is diverged around by 360 degrees after passing through the conscope, the brightness of laser rays formed on the target wall around is uniform in the length direction, and obvious bright areas and dark areas do not exist.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical measurement, line marking instrument, specifically a laser line marker. BACKGROUND

[0002] The laser line marker is a kind of optoelectromechanical integrated instrument, it mostly adopts 635nm laser diode, can project the visible red horizontal straight line and plumb line on wall, the horizontal (or plumb) position of laser projection line can be kept using the automatic compensator in the instrument. It is mainly used in indoor decoration, door and window installation, pipeline laying, tunnel excavation, hanging vertical line and quality inspection and engineering supervision etc. building construction, is the indispensable instrument in measurement.

[0003] Patent document CN107796378A discloses a kind of laser line marker using conical mirror, including laser generation component, laser generation component includes cylinder, at least the upper section of the cylinder is transparent, the upper end of cylinder is fixed with the conical mirror, and the conical surface of conical mirror is arranged inward. The lower section of the cylinder is provided with the lens assembly of laser generation component, and the lower side of the lens assembly is provided with laser generator. The conical surface of the conical mirror is arranged corresponding to the upper section of the cylinder, so that the laser reflected by the conical surface is dispersed 360 degrees around from the transparent upper section, forms laser surface, and forms laser line on the target wall around.

[0004] The laser line marker of the prior art has the following defects: 1, because 360 ° light source is outputted and laser line is formed on target wall, the brightness of laser line is often low;2, the cross section of the light beam emitted by the existing laser generator is elliptical, the power of the long axis direction of the ellipse is high, and the light beam power of the short axis direction is low, resulting in obvious difference in output power of light source in different directions, there are obvious bright and dark areas, that is, the laser line formed on the target wall has alternating bright and dark areas in the length direction, that is, there is the problem of uneven brightness. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem to provide a kind of laser line marker, and the brightness of laser line formed on the target wall around is higher, and the brightness is more uniform in the length direction.

[0006] In order to solve the above problems, the utility model provides a kind of laser line marker, including: laser generator, conical mirror, laser generator includes first, second laser generator, a pair of light beams outputted by first, second laser generator simultaneously is dispersed 360 degrees around after full reflection prism assembly, conical mirror;Wherein, the pair of light beams forms the light beam that is distributed with same central axis, cross section is cross or X after passing through full reflection prism assembly.

[0007] A preferred embodiment is that the total internal reflection prism assembly includes a first total internal reflection prism and a second total internal reflection prism; the inclined surfaces of the first and second total internal reflection prisms are stacked together, so that the total internal reflection prism assembly is a cube.

[0008] A preferred embodiment includes a lens barrel, with the conical surface of the conical mirror housed within a transparent tube positioned at the top opening of the lens barrel. A first laser generator is located at the bottom of the lens barrel, and a second laser generator is located in a through-hole in the middle of the lens barrel wall, with the light outputs from the first and second laser generators perpendicularly distributed. A square side of each of the first and second total internal reflection prisms is perpendicularly distributed to the light outputs from the first and second laser generators, respectively, so that the pair of beams output from the laser generators form a coaxially distributed beam after passing through the total internal reflection prism assembly. During assembly, by adjusting the rotation angle of the first and second laser generators, the cross-section of the coaxially distributed beam can be made to be cross-shaped or X-shaped.

[0009] For separate assembly and debugging, a preferred embodiment is that the laser marking instrument further includes a laser tube holder located at the bottom of the lens tube, the first laser generator is located in the lower middle part of the laser tube holder, and the total internal reflection prism assembly is located in the upper middle part of the laser tube holder; the upper middle part of the wall of the laser tube holder is provided with a through hole opposite to the second laser generator, so that the laser output by the second laser generator can enter the second total internal reflection prism.

[0010] A preferred embodiment is that the laser marking instrument further includes a lens holder for accommodating the aspherical lens, the lens holder being disposed inside the lens barrel and above the laser holder.

[0011] A preferred embodiment is that the outer wall of the lens barrel is provided with a pair of bolts for adjusting the axial angle of the lens holder to achieve beam axis adjustment.

[0012] A preferred embodiment is that the conical mirror, aspherical lens, and total reflection prism assembly are coaxial with the laser beam output from the first laser generator.

[0013] The utility model discloses a laser line instrument, adopt a pair of laser generator output a pair of light beam to form the light beam that is same central axis distribution after passing through the total reflection prism assembly, corresponding single laser generator's scheme, can promote the laser line brightness on target wall greatly, and the pair of light beam passes through the total reflection prism assembly and forms the laser light beam that the cross section is cross or X. (2) relative to the ellipse light beam of prior art, the problem that the power is high in the long axis direction, and the power is low in the short axis direction, the utility model discloses a pair of cross section is ellipse light beam after passing through the total reflection prism assembly and forms the light beam that the cross section is cross or X, so that a pair of coaxial ellipse light beam's pair of ellipse cross section long axis is perpendicular or intersection, and then make the power difference of the cross section of the cross or X light beam in different directions be smaller, and the power of the cross or X light beam cross section in each angle around is more even, so that the cross or X light beam is dispersed to 360 degrees around after the conical mirror, and the laser line that forms on the target wall around is more even in length direction, and there is no obvious bright area and dark area, wherein, the light beam cross section adopts the scheme that the cross is cross, and the effect is best, and then the product quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in detail below combining with the drawings of the specification:

[0015] Fig. 1 It is the partial exploded structure schematic diagram of the laser line instrument of the utility model,

[0016] Fig. 2 It is the axial cross section view of the laser line instrument of the utility model,

[0017] Fig. 3 It is the combination piece one 21 that the conical mirror 1 and transparent pipe 2 constitute,

[0018] Fig. 4 It is the combination piece two 22 that the lens barrel 3 and second laser generator constitute,

[0019] Fig. 5 It is the combination piece three 23 that the lens pipe base 6 and aspheric lens 7 constitute,

[0020] Fig. 6 It is the combination piece four three 24 that the laser pipe base 8 and first laser generator 11, total reflection prism assembly 25 constitute,

[0021] Fig. 7 It is the schematic diagram of the light beam that the cross section is cross. DETAILED DESCRIPTION EMBODIMENT

[0022] As Figs. 1 to 7The laser line marker of the embodiment comprises: a conical mirror 1, the conical surface of the conical mirror 1 is arranged in a transparent tube 2, the bottom of the transparent tube 2 is arranged on the top opening of a lens barrel 3, the bottom end of the lens barrel 3 is provided with a laser tube seat 8, a first laser generator 11 is arranged in the middle lower part of the laser tube seat 8, a total reflection prism assembly 25 is arranged in the middle upper part of the laser tube seat 8, a second laser generator 5 is arranged on the through hole in the middle of the wall of the lens barrel 3, and the middle upper part of the wall of the laser tube seat 8 is provided with a through hole opposite to the second laser generator 5, so that the laser output by the second laser generator 5 enters the second total reflection prism 9.

[0023] The light rays output by the first and second laser generators are vertically distributed, and one square side of the first and second total reflection prisms is respectively perpendicular to the vertical distribution of the light rays output by the first and second laser generators, so that a pair of light beams output by the pair of laser generators forms a pair of light beams with the same central axis distribution after passing through the total reflection prism assembly. During assembly, the cross section of the light beams with the same central axis distribution can be made into a cross or X shape by adjusting the angle of the first and second laser generators.

[0024] The laser line marker further comprises a lens tube seat 6 for accommodating the aspheric lens 7, the lens tube seat 6 is arranged in the lens barrel 3 and above the laser tube seat 8.

[0025] A pair of light beams output by the first and second laser generators 11 and 5 successively pass through the total reflection prism assembly 25 and the conical mirror 1 and then diverge 360° to the surrounding, wherein the pair of light beams forms a pair of light beams with the same central axis distribution and a cross or X-shaped cross section after passing through the total reflection prism assembly 25.

[0026] The total reflection prism assembly 25 comprises a first total reflection prism 10 and a second total reflection prism 9, the inclined surfaces of the first and second total reflection prisms are arranged in superposition and fixed by glue, and the total reflection prism assembly 25 is made into a cube.

[0027] A pair of bolts 4 for adjusting the axial angle of the lens tube seat 6 to realize the adjustment of the axial angle of the light beams are arranged on the outer wall of the lens barrel 3.

[0028] The conical mirror 1, the transparent tube 2, the lens barrel 3, the lens tube seat 6, the aspheric lens 7, the laser tube seat 8 and the total reflection prism assembly 25 are arranged on the same central axis with the laser beam output by the first laser generator 11, wherein the light beams with the cross or X-shaped cross section are focused by adjusting the relative position of the third combined assembly and the second combined assembly.

[0029] Obviously, the above embodiments are only examples for clearly illustrating the present application, and are not intended to limit the implementation manners of the present application. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and also impossible to exhaust all the implementation manners. The changes or variations which are extended from the spirit of the present application are still within the protection scope of the present application.

Claims

1. A laser leveling tool, comprising: The laser generator, conical mirror (1) is characterized in that the laser generator includes a first laser generator (11) and a second laser generator (5), a pair of light beams output by the first laser generator and the second laser generator are sequentially dispersed 360 degrees around the back through a total reflection prism assembly (25) and the conical mirror (1), wherein the pair of light beams form light beams with a same central axis and a cross-section in the shape of a cross or X after passing through the total reflection prism assembly (25).

2. The laser leveling tool of claim 1, wherein, The total reflection prism assembly (25) includes first and second total reflection prisms, the inclined surfaces of the first and second total reflection prisms are arranged in a superimposed manner, and the total reflection prism assembly (25) is in the shape of a cube.

3. The laser leveling tool of claim 2, wherein, The laser line instrument further includes a lens barrel (3), a conical surface of the conical mirror (1) is arranged in a transparent tube (2), the transparent tube (2) is arranged on a top opening of the lens barrel (3), the first laser generator (11) is arranged at a bottom of the lens barrel (3), the second laser generator (5) is arranged on a through hole in a middle of a wall of the lens barrel (3), and light beams output by the first and second laser generators are arranged vertically, and one square side of the first and second total reflection prisms is respectively perpendicular to the light beams output by the first and second laser generators.

4. The laser leveling tool of claim 3, wherein, The laser line instrument further includes a laser tube seat (8) arranged at a bottom end of the lens barrel (3), the first laser generator (11) is arranged in a middle lower part of the laser tube seat (8), and the total reflection prism assembly (25) is arranged in a middle upper part of the laser tube seat (8), a through hole opposite to the second laser generator (5) is arranged in a middle upper part of a wall of the laser tube seat (8), so that the laser output by the second laser generator (5) enters the second total reflection prism (9).

5. The laser leveling device according to one of claims 1 to 4, characterized in that The laser line instrument further includes a lens tube seat (6) for accommodating an aspherical lens (7), the lens tube seat (6) is arranged in the lens barrel (3) and above the laser tube seat (8).

6. The laser leveling tool of claim 5, wherein, A pair of bolts (4) for adjusting an axial angle of the lens tube seat (6) to adjust an axis of the light beam are arranged on an outer wall of the lens barrel (3).

7. The laser leveling tool of claim 5, wherein, The conical mirror (1), the aspherical lens (7), the total reflection prism assembly (25) and the laser light beam output by the first laser generator (11) have a same central axis.

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