Multi-beam 360-degree laser demarcation device

Abstract

The utility model relates to the technical field of demarcation calibration, in particular to a multi-beam 360-degree laser demarcation device. The multi-beam 360-degree laser demarcation device comprises a demarcation device body, a laser light source, a laser emitting mechanism, a reflecting mechanism and a beam expanding mechanism. Emergent laser of the laser light source sequentially passes through the fixed part and the rotating cylinder and then enters an inner cavity of the rotating part, the laser is reflected and redirected by the reflecting mechanism and then is emitted from the light emitting window, the beam expanding mechanism shapes the laser into a fan-shaped surface type light beam, and the fan-shaped surface type light beam irradiates a wall surface or the ground to realize a laser demarcation function. And a worker carries out construction by taking the projected light on the wall surface or the ground as a reference. When the rotary driving mechanism drives the rotary cylinder to rotate, the irradiation direction of the fan-shaped light beam emitted from the light emitting window is changed, so that the line casting position on the wall surface or the ground is changed. And the rotating part can realize 360-degree all-dimensional steering relative to the fixed part, so that the line casting range and the line casting direction are more comprehensive.

Description

Technical Field

[0001] The present application relates to the field of line projection and calibration technology, and in particular to a multi-beam 360-degree laser line projection instrument. Background Art

[0002] Laser line projectors are devices that use laser technology for precise line projection and positioning, and are widely used in fields such as construction, engineering, and decoration. Although laser line projectors have advantages in terms of accuracy, their flexibility may be affected by the limited line projection angle. Some laser line projectors may be designed to operate at specific angles, which limits their application in different directions or angles. There is no sufficient adjustment mechanism to change the direction or angle of the projection, which makes it difficult for them to adapt to complex working environments or meet diverse measurement needs. Therefore, how to increase the projection range to improve the flexibility of laser line projection is a technical problem that needs to be solved in this field. Utility Model Content

[0003] In view of this, the present application provides a multi-beam 360-degree laser line projector, which can increase the projection range and thus improve the flexibility of laser projection.

[0004] In the first aspect, the present application provides a multi-beam 360-degree laser line projector, comprising: a line projector body; a laser light source, arranged in the line projector body; a laser emitting mechanism, connected to the line projector body, the laser emitting mechanism comprising a fixed part, a rotating part and a rotation drive mechanism, the fixed part is fixedly connected to the line projector body, the rotating part comprises a rotating cylinder, the rotating cylinder partially extends into the interior of the fixed part, the rotation drive mechanism is connected to the rotating cylinder to drive the rotating cylinder to rotate around the cylinder axis; a light exit window is provided on the side of the rotating part; a reflecting mechanism is arranged in the interior of the rotating part, the emitted laser light of the laser light source passes through the fixed part and the rotating cylinder in sequence, enters the interior of the rotating part and irradiates the reflecting mechanism, the setting angle of the reflecting mechanism is configured to redirect the emitted laser light by 90° and emit it from the light exit window; a beam expanding mechanism is arranged between the reflecting mechanism and the light exit window, the beam expanding mechanism is configured to expand the emitted laser light into a surface beam, the beam plane of the surface beam being perpendicular to the rotation direction of the rotating part.

[0005] In combination with the first aspect, in a possible implementation, the fixed portion is provided with a first light-through hole, and the laser light emitted by the laser light source enters the interior of the fixed portion through the first light-through hole.

[0006] In combination with the first aspect, in a possible implementation, the rotating cylinder is provided with a second light-through hole, and the laser light emitted through the first light-through hole enters and passes through the second light-through hole before entering the interior of the rotating part.

[0007] In combination with the first aspect, in a possible implementation, the number of the rotation drive mechanisms is at least two, and the plurality of rotation drive mechanisms are respectively connected to different positions of the rotating cylinder.

[0008] In combination with the first aspect, in a possible implementation, the rotation drive mechanism includes a driving gear, a chainring is sleeved on the cylindrical surface of the rotating cylinder, and the driving gear and the chainring are engaged with each other.

[0009] In combination with the first aspect, in a possible implementation, the reflection mechanism includes: a semi-transparent and semi-reflective mirror; and a total reflection mirror, which has a common optical axis with the semi-transparent and semi-reflective mirror, and the semi-transparent and semi-reflective mirror is arranged on the optical path between the laser light source and the total reflection mirror.

[0010] In combination with the first aspect, in a possible implementation, the beam expanding mechanism includes: a first beam expanding mirror, which is arranged on the reflection light path of the semi-transparent and semi-reflective mirror; and a second beam expanding mirror, which is arranged on the reflection light path of the total reflection mirror.

[0011] In combination with the first aspect, in a possible implementation, the first beam expander is a cylindrical lens.

[0012] In combination with the first aspect, in a possible implementation, the second beam expander is a cylindrical lens.

[0013] In combination with the first aspect, in a possible implementation manner, glass plates are provided on both the first light hole and the light exit window.

[0014] When the present application is used, the laser light emitted by the laser light source passes through the fixed part and the rotating cylinder in sequence and then enters the internal cavity of the rotating part. The laser light is reflected and redirected by the reflection mechanism and then emitted from the light exit window. The beam expansion mechanism shapes the laser light into a fan-shaped surface beam, which is irradiated on the wall or the ground to realize the laser line projection function. Workers use the projected light on the wall or the ground as a reference for construction. When the rotating drive mechanism drives the rotating cylinder to rotate, the irradiation direction of the fan-shaped surface beam emitted from the light exit window changes accordingly, thereby changing the projection position on the wall or the ground. Since the rotating part is composed of optical devices and does not have circuit devices such as wires, the rotating part can achieve 360° all-round rotation relative to the fixed part, making the projection range and projection direction more comprehensive and improving the flexibility of laser projection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1Shown is a structural schematic diagram of a multi-beam 360-degree laser line projector provided in one embodiment of the present application.

[0016] Figure 2 Shown Figure 1 Schematic diagram of part of the structure.

[0017] Figure 3 Shown Figure 1 Schematic diagram of part of the structure. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0019] An exemplary multi-beam 360-degree laser projector is as follows:

[0020] Figure 1 Shown is a structural schematic diagram of a multi-beam 360-degree laser line projector provided in one embodiment of the present application. Figure 2 Shown Figure 1 Schematic diagram of part of the structure. Figure 3 Shown Figure 1 The present application provides a multi-beam 360-degree laser line projector. In one embodiment, refer to Figure 1 、 Figure 2 and Figure 3As shown, the multi-beam 360-degree laser line projector includes a line projector body 1, a laser light source 2, a laser emitting mechanism 3, a reflecting mechanism 4, and a beam expanding mechanism 5. The laser light source 2 is arranged in the line projector body 1. The laser emitting mechanism 3 is connected to the line projector body 1. The laser emitting mechanism 3 includes a fixed part 301, a rotating part 302, and a rotating drive mechanism 303. The fixed part 301 is fixedly connected to the line projector body 1. The rotating part 302 includes a cylindrical rotating column 3021. The rotating column 3021 partially extends into the interior of the fixed part 301. The rotating drive mechanism 303 is connected to the rotating column 3021 to drive the rotating column 3021 to rotate around the column axis. A light exit window 3022 is provided on the side of the rotating part 302. The reflective mechanism 4 is disposed inside the rotating portion 302. The laser light emitted by the laser light source 2 passes through the fixed portion 301 and the rotating cylinder 3021 in sequence, then enters the interior of the rotating portion 302 and irradiates the reflective mechanism 4. The reflective mechanism 4 is configured at an angle to redirect the emitted laser light by 90° and emit it from the light exit window 3022. The beam expander 5 is disposed between the reflective mechanism 4 and the light exit window 3022. The beam expander 5 is configured to expand the emitted laser light into a planar beam, with the beam plane 10 of the planar beam perpendicular to the rotation direction of the rotating portion 302. Figure 3 As shown, the rotating part 302 can be constructed as a cylinder. The rotating part 302 rotates around the cylinder axis of the rotating cylinder 3021. The curve with an arrow indicates the rotation direction. The fan-shaped laser is emitted from the light exit window 3022. The beam surface 10 of the fan-shaped laser is perpendicular to the circumference of the rotating part 302 and also perpendicular to the rotation direction of the rotating part 302.

[0021] During use of this embodiment, the laser light emitted by the laser light source 2 sequentially passes through the fixed portion 301 and the rotating cylinder 3021 before entering the internal cavity of the rotating portion 302. After being reflected and redirected by the reflector 4, the laser light is emitted from the light exit window 3022. The beam expander 5 shapes the laser light into a fan-shaped beam, which then illuminates the wall or ground, achieving the laser line projection function. Workers use the projected light on the wall or ground as a reference as they perform construction. As the rotating drive mechanism 303 rotates the rotating cylinder 3021, the direction of the fan-shaped beam emitted from the light exit window 3022 changes, thereby changing the line projection position on the wall or ground. Because the rotating portion 302 is entirely optical and lacks electrical circuitry such as wiring, the rotating portion 302 can achieve 360° rotation relative to the fixed portion 301, expanding the projection range and direction and enhancing the flexibility of laser line projection.

[0022] Specifically, such as Figure 1As shown, the fixed portion 301 is provided with a first light hole 3011, through which the laser light emitted by the laser light source 2 enters the interior of the fixed portion 301. The rotating cylinder 3021 is provided with a second light hole 30211. The laser light emitted through the first light hole 3011 enters and passes through the second light hole 30211 before entering the interior of the rotating portion 302. The second light hole 30211 extends along the axis of the rotating cylinder 3021 and penetrates the length of the rotating cylinder 3021. The interior of the rotating portion 302 is provided with a cavity to accommodate the reflection mechanism 4 and the beam expander mechanism 5. After passing through the second light hole 30211, the laser light enters the internal cavity of the rotating portion 302.

[0023] like Figure 1 As shown, there are at least two rotation drive mechanisms 303, each of which is connected to different positions of the rotating cylinder 3021, thereby more stably driving the rotating cylinder 3021 to rotate. Specifically, the rotation drive mechanism 303 includes a drive gear, and a chainring is mounted on the cylindrical surface of the rotating cylinder 3021, and the drive gear and the chainring are meshed with each other.

[0024] like Figure 1 As shown, the reflection mechanism 4 includes a semi-transparent mirror 401 and a total reflection mirror 402. The total reflection mirror 402 and the semi-transparent mirror 401 share an optical axis. The semi-transparent mirror 401 is arranged on the optical path between the laser light source 2 and the total reflection mirror 402. The semi-transparent mirror 401 and the total reflection mirror 402 are both fixedly connected to the interior of the rotating part 302, and the semi-transparent mirror 401 and the total reflection mirror 402 are parallel to each other. When the rotating part 302 rotates, the semi-transparent mirror 401 and the total reflection mirror 402 rotate accordingly, thereby reflecting the laser light toward the light exit window 3022 in real time.

[0025] In one embodiment, if Figure 1 As shown, the beam expander 5 includes a first beam expander 501 and a second beam expander 502. The first beam expander 501 is arranged on the reflected light path of the semi-transparent and semi-reflective mirror 401 to expand the laser light emitted from the semi-transparent and semi-reflective mirror 401. The second beam expander 502 is arranged on the reflected light path of the total reflection mirror 402 to expand the laser light emitted from the total reflection mirror 402. The first beam expander 501 is a cylindrical lens, and the second beam expander 502 is a cylindrical lens. The semi-transparent and semi-reflective mirror 401 splits the output laser light of the laser light source 2 into two beams of light, and the two beams of light are emitted through the first beam expander 501 and the second beam expander 502 respectively, thereby realizing multi-beam projection.

[0026] In one embodiment, glass plates are provided on the first light hole 3011 and the light exit window 3022 to prevent dust and other debris from entering the interior of the fixed part 301 and the interior of the rotating part 302 .

[0027] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0028] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0029] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0030] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be applied in the widest sense consistent with the principles and novel features of this utility model.

[0031] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A multi-beam 360-degree laser projection instrument, characterized in that: include: Line casting instrument body (1); A laser light source (2) is arranged in the line projection instrument body (1); A laser emitting mechanism (3) is connected to the line-casting instrument body (1), the laser emitting mechanism (3) comprising a fixed portion (301), a rotating portion (302) and a rotation drive mechanism (303), the fixed portion (301) being fixedly connected to the line-casting instrument body (1), the rotating portion (302) comprising a rotating cylinder (3021), the rotating cylinder (3021) partially extending into the interior of the fixed portion (301), the rotation drive mechanism (303) being connected to the rotating cylinder (3021) to drive the rotating cylinder (3021) to rotate around the cylinder axis; a light exit window (3022) is provided on the side of the rotating portion (302); A reflection mechanism (4) is arranged inside the rotating part (302), and the outgoing laser light of the laser light source (2) passes through the fixed part (301) and the rotating cylinder (3021) in sequence, then enters the interior of the rotating part (302) and irradiates the reflection mechanism (4). The setting angle of the reflection mechanism (4) is configured to redirect the outgoing laser light by 90 degrees and emit it from the light exit window (3022); A beam expansion mechanism (5) is provided between the reflection mechanism (4) and the light exit window (3022), the beam expansion mechanism (5) being configured to expand the exiting laser beam into a planar beam, wherein the beam plane (10) of the planar beam is perpendicular to the rotation direction of the rotating part (302).

2. The multi-beam 360-degree laser line projector according to claim 1, characterized in that: The fixed part (301) is provided with a first light-through hole (3011), and the laser light emitted by the laser light source (2) enters the interior of the fixed part (301) through the first light-through hole (3011).

3. The multi-beam 360-degree laser line projector according to claim 2, characterized in that: The rotating cylinder (3021) is provided with a second light-through hole (30211), and the laser light emitted through the first light-through hole (3011) enters and passes through the second light-through hole (30211) before entering the interior of the rotating part (302).

4. The multi-beam 360-degree laser line projector according to claim 1, characterized in that: The number of the rotation drive mechanisms (303) is at least two, and the plurality of rotation drive mechanisms (303) are respectively connected to different positions of the rotation cylinder (3021).

5. The multi-beam 360-degree laser line projector according to claim 1, characterized in that: The rotation drive mechanism (303) comprises a driving gear, a toothed disc is sleeved on the cylindrical surface of the rotating cylinder (3021), and the driving gear and the toothed disc are meshed with each other.

6. The multi-beam 360-degree laser line projector according to claim 1, characterized in that: The reflection mechanism (4) comprises: a semi-transparent and semi-reflective mirror (401); and The total reflection mirror (402) shares an optical axis with the semi-transparent and semi-reflective mirror (401), and the semi-transparent and semi-reflective mirror (401) is arranged on the optical path between the laser light source (2) and the total reflection mirror (402).

7. The multi-beam 360-degree laser line projector according to claim 6, characterized in that: The beam expansion mechanism (5) comprises: A first beam expander (501) is arranged on the reflection light path of the semi-transparent and semi-reflective mirror (401); and The second beam expander (502) is arranged on the reflection light path of the total reflection mirror (402).

8. The multi-beam 360-degree laser line projector according to claim 7, characterized in that: The first beam expander (501) is a cylindrical lens.

9. The multi-beam 360-degree laser line projector according to claim 7, characterized in that: The second beam expander (502) is a cylindrical lens.

10. The multi-beam 360-degree laser line projector according to claim 2, characterized in that: Glass plates are provided on the first light hole (3011) and the light exit window (3022).

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