Laser line projector

Abstract

The present invention relates to the field of optoelectronic technology, and discloses a laser line projector, including a movement and a housing, wherein: the movement includes a 360° laser module, a window is provided outside the 360° laser module, and a laser output window is provided on the window; an opening is provided on the housing to match the window; the laser line projector also includes a driving device, the driving device is used to drive the movement to move, so that the window is exposed from the housing through the opening, and is used to drive the movement to move, so that the window falls into the housing through the opening. In the above embodiment, when not in use, the window and the 360° laser module are located in the housing, thereby protecting the window and preventing the laser output window from being damaged by impacts and collisions from the external environment; at the same time, an opening is provided on the housing, and a driving device for driving the movement is provided inside. Under the action of the driving device, the window can be controlled to be exposed from the opening or return to the housing, which is simple to operate and easy to use.

Description

Technical Field

[0001] The invention relates to the field of optoelectronic technology, and in particular to a laser line projector. Background Art

[0002] With the rapid development of laser light source technology, laser line projectors, as a device that provides reference lines, have been widely used in engineering construction, interior decoration, and surveying and mapping because they can be operated by one person and do not need to leave permanent marks on the target surface.

[0003] The 360° laser module is a laser emitting device commonly used in laser line projectors. The 360° laser module adopts the principle of light reflection to project a beam of parallel light onto a conical reflector. The parallel light is reflected and turned into a circle of light curtain, thus forming a 360-degree wireframe in the room.

[0004] Based on the above working principle, during installation, the 360° laser module must be exposed on the surface of the housing. A window is usually provided on the outside of the 360° laser module. The window is fixedly connected to the housing and has laser output windows in four directions. Light is projected out through the laser output windows. However, since the window protrudes from the surface of the housing, the laser output window is easily damaged during transportation. Summary of the invention

[0005] The invention provides a laser line projector, which is used to solve the problem in the prior art that the laser output window of a 360° laser module is easily damaged during transportation.

[0006] An embodiment of the present invention provides a laser line projector, comprising a housing and a movement disposed in the housing, wherein:

[0007] The movement includes a 360° laser module, and a window is provided outside the 360° laser module, and a laser output window is provided on the window;

[0008] The housing is provided with an opening matched with the window;

[0009] The laser line projector also includes a driving device, which is used to drive the movement to make the window appear from the casing through the opening, and to drive the movement to make the window fall into the casing through the opening.

[0010] In the above embodiment, when not in use, the window and the 360° laser module are located inside the casing, thereby protecting the window and preventing damage to the laser output window caused by impacts and collisions in the external environment; at the same time, an opening is provided on the casing, and a driving device for driving the movement of the movement is provided inside. Under the action of the driving device, the window can be controlled to emerge from the opening or return to the casing, which is simple to operate and easy to use.

[0011] Optionally, the movement further includes a frame and a pendulum body arranged in the frame, and the 360° laser module is fixed on the pendulum body;

[0012] A locking device is provided in the housing, and the locking device is used to fix the pendulum in the off state, so as to prevent the pendulum from swinging during transportation.

[0013] Optionally, when the opening is located at the top of the housing, the locking device includes:

[0014] A support member, fixed to the bottom of the housing;

[0015] A push rod, located below the pendulum body, with one end rotatably connected to the frame and the other end extending above the support member;

[0016] During the descending process of the movement, when one end of the push rod extends out of the frame and presses against the support member, the push rod rotates relative to the frame and pushes the pendulum to a fixed position.

[0017] Optionally, the supporting member is an elastic element.

[0018] Optionally, when the window falls into the housing through the opening, the top of the window is not higher than the surface of the housing, so that the laser output window can be completely immersed in the housing, and the housing can block impacts and collisions from the external environment, thereby effectively protecting the laser output window.

[0019] Optionally, a sealing plate is provided along the edge of the opening in the housing, and the sealing plate encloses a space for accommodating the window. The sealing plate can prevent external dust from entering the housing.

[0020] Optionally, the window body includes a top surface and four side surfaces connected to the top surface, and each side surface is provided with a laser output window;

[0021] The area enclosed by the four side surfaces gradually decreases in a direction away from the top surface;

[0022] The opening is a quadrilateral, and the area enclosed by the sealing plate gradually decreases in a direction away from the opening.

[0023] Optionally, the driving device is further used to adjust the height of the window exposed from the casing.

[0024] Optionally, the driving device includes a lead screw and a motor for driving the lead screw to move. The lead screw drive saves space, has good stability and high precision.

[0025] Optionally, it also includes a battery assembly, a main board and an adapter board arranged in the housing, the main board is electrically connected to the battery assembly and the driving device respectively, the adapter board is electrically connected to the 360 ​​laser module, and the main board is electrically connected to the adapter board. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A cross-sectional view of a laser line projector provided by an embodiment of the present invention;

[0027] Figure 2 for Figure 1 A top view of the laser line projector shown in;

[0028] Figure 3 for Figure 1 Schematic diagram of the laser line projector in use;

[0029] Figure 4 A schematic structural diagram of a locking device provided in an embodiment of the present invention.

[0030] Reference numerals:

[0031] 10-Case

[0032] 101-Opening

[0033] 20- Movement

[0034] 21-360° laser module

[0035] 22-Form

[0036] 23-Rack

[0037] 24-Swing

[0038] 30-Drive device

[0039] 40-Locking device

[0040] 41-Support

[0041] 42-Putter

[0042] 50-Sealing plate

[0043] 60-Battery Assembly

[0044] 70-Motherboard

[0045] 80-Adapter Plate DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] An embodiment of the present invention provides a laser line projector, which can protect the laser output window of a 360° laser module to avoid damage during transportation.

[0048] Specifically, the laser projection device includes a housing and a movement arranged in the housing, wherein:

[0049] The movement includes a 360° laser module, a window is provided outside the 360° laser module, and a laser output window is provided on the window:

[0050] The housing is provided with an opening matched with the window;

[0051] The laser line projector also includes a driving device, which is used to drive the movement to make the window appear from the casing through the opening, and to drive the movement to make the window fall into the casing through the opening.

[0052] In the above embodiment, when not in use, the window and the 360° laser module are located inside the casing, thereby protecting the window and preventing the laser output window from being damaged by impacts and collisions in the external environment; at the same time, an opening is provided on the casing, and a driving device for driving the movement of the movement is provided inside. When in use, the driving device provides power to expose the window from the casing through the opening. At this time, the light emitted by the 360° laser module can be emitted outward through the laser output window. After use, under the action of the driving device, the movement moves in the opposite direction, and the window returns to the casing. The whole process is simple to operate and easy to use.

[0053] In order to more clearly understand the structure of the laser line projector provided in the embodiment of the present invention, a detailed description is now given in conjunction with the accompanying drawings.

[0054] like Figure 1 , Figure 2 , Figure 3As shown, the laser projection instrument includes a housing 10 and a movement 20 arranged in the housing 10, wherein the movement 20 includes a 360° laser module 21, and a window 22 is provided outside the 360° laser module 21, and a laser output window is provided on the window 22. In order to protect the laser output window, when not in use, the entire movement 20 (including the 360° laser module 21 and the window 22) is located in the housing 10. Since the housing 10 can block impacts and collisions from the external environment, the laser output window is avoided. At the same time, the surface of the housing 10 is provided with an opening 101 that matches the window 22, and a driving device 30 is provided inside. When in use, the driving device 30 drives the movement 20 to move, so that the window 22 is exposed from the housing 10 through the opening 101. At this time, the light emitted by the 360° laser module 21 can be emitted outward through the laser output window. After use, the driving device 30 drives the movement 20 to move again, so that the window 22 falls back into the housing 10 through the opening 101. The whole process is simple to operate and easy to use. Furthermore, the driving device 30 can also adjust the height of the window 22 exposed from the housing 10, so that during use, the position of the light emitted by the 360° laser module 21 on the wall can be fine-tuned to meet the requirements of operation accuracy.

[0055] The laser line projector is a self-balancing laser line projector. The self-balancing laser line projector can form a horizontal and / or vertical laser line on the target surface without manual adjustment by the user. The self-balancing laser line projector is divided into two types: mechanical self-balancing and electronic self-balancing. The mechanical self-balancing returns to a balanced state through the swing of the pendulum 24 under the action of gravity. The electronic self-balancing determines whether the movement 20 is in a balanced state based on the electronic water bubble and controls the rotation of the motor connected to the movement 20 to rotate the movement 20 to a balanced state. In this embodiment, Figure 1 , Figure 3 As shown, the laser line projector is a mechanical self-balancing laser line projector. The 360° laser module 21 is fixed on the pendulum 24. In addition to the pendulum 24 and the 360° laser module 21, the movement 20 also includes a frame 23, a copper block, a cross shaft, a bearing, an adjustment block, etc. In order to keep the pendulum 24 in a fixed state when not in use and prevent the pendulum 24 from being impacted and causing a large swing, thereby causing bearing damage and affecting accuracy, a locking device 40 is also provided in the casing 10. The locking device 40 is used to fix the pendulum 24 in the off state so that the pendulum 24 will not swing at will, and after starting up, the pendulum 24 can be restored to a free swinging state.

[0056] The locking device 40 can be implemented in many forms, such as a clamping structure. After the power is turned off, the clamp is controlled to clamp the pendulum 24 tightly to fix the pendulum 24; after the power is turned on, the clamp is controlled to release to restore the pendulum 24 to a free swing state. Alternatively, the following forms can be adopted, such as Figure 4As shown, the locking device 40 includes a support member 41 and a push rod 42, wherein the support member 41 is located at the bottom of the housing 10 and is fixedly connected to the housing 10; the push rod 42 is located below the pendulum 24, and one end of the push rod 42 is rotatably connected to the frame 23, and the other end extends above the support member 41; at this time, the housing 10 is provided with an opening 101 at the top, that is, under the drive of the driving device 30, the movement 20 can realize an upward or downward movement in the vertical direction, wherein, during the descent of the movement 20, when one end of the push rod 42 extends out of the frame 23 and presses against the support member 41, the push rod 42 rotates relative to the frame 23 and pushes the pendulum 24 to a fixed position. In this process, the push rod 42 moves downward with the random frame 23, and the free end of the push rod 42 tilts upward due to the upward support force of the support member 41, causing the push rod 42 to tilt. The continuously tilted push rod 42 pushes the pendulum 24 to rotate to one side until the pendulum 24 is stuck in the set position; on the contrary, while the movement 20 rises upward, the push rod 42 gradually separates from the support member 41. After the 360° laser module 21 rises to its position, the push rod 42 is completely separated from the support member 41. At this time, the pendulum 24 can swing freely, and automatic leveling can be achieved by the swing of the pendulum 24 under the action of gravity. Preferably, the support member 41 is an elastic element, such as a spring or a structural member made of rubber material, etc. Since the elastic element will deform when subjected to pressure, an appropriate installation error is allowed, and a flexible contact will be generated between the elastic element and the push rod 42, avoiding the sudden tilting of the push rod 42 and causing an impact on the pendulum 24.

[0057] For the electronic self-balancing line thrower, the locking device and pendulum are omitted from the movement, but an electronic bubble and an adjustment motor for the XY directions are added, and the motor automatically adjusts according to the state of the electronic bubble. Since the basic functions of the two are the same, they will not be repeated here.

[0058] For reference Figure 1 , Figure 3 In this laser projector, after the window 22 falls into the housing 10 through the opening 101, the top of the window 22 is not higher than the surface of the housing 10, so that the laser output window can be completely immersed in the interior of the housing 10, thereby being effectively protected. A sealing plate 50 is provided along the edge of the opening 101 in the housing 10, and the sealing plate 50 encloses a space for accommodating the window 22. When the window 22 rises from the opening 101, the sealing plate 50 can form a barrier to prevent external dust from entering the interior of the housing 10. When the window 22 falls into the space, the top of the window 22 is located in the opening 101, thereby blocking the opening 101. In the specific setting, the window 22 includes a top surface and four side surfaces connected to the top surface, each side surface is provided with a laser output window, and the area enclosed by the four side surfaces gradually decreases in the direction away from the top surface; accordingly, as Figure 2As shown, the opening 101 on the housing 10 is a quadrilateral, and the area enclosed by the sealing plate 50 arranged along the edge of the opening 101 gradually decreases in the direction away from the opening 101. Figure 1 , Figure 3 It can be seen from the cross-sectional view shown that the sealing plate 50 is tilted inwardly, so that inside the casing 10, along the direction of the opening 101 pointing to the inside of the casing 10, the space enclosed by the sealing plate 50 gradually becomes smaller, thereby making it difficult for external dust to fall into the inside of the casing 10, and the sealing is better.

[0059] The opening 101 can be disposed on the top surface of the housing 10 or on the side surface of the housing 10. Figure 1 to Figure 3 As shown, if the opening 101 is set on the top surface of the housing 10, then under the drive of the driving device 30, the 360° laser module 21 moves up and down in the vertical direction. If the opening 101 is set on the side of the housing 10, then under the drive of the driving device 30, the 360° laser module 21 extends or retracts in the horizontal direction. In addition to the 360° laser module 21, the movement 20 also includes a plurality of one-line laser modules (not shown), and the housing 10 is provided with a window corresponding to each one-line laser module. The one-line laser module is fixed on the pendulum 24 like the 360° laser module 21, but the difference is that the laser output window corresponding to the one-line laser module is located on the surface of the housing 10. Driven by the driving device 30, the straight-line laser module moves together with the core 20. The laser output window set on the casing 10 can correspond to the position of the straight-line laser module after the core 20 moves into place, or a long window can be set along the movement trajectory of the straight-line laser module. In comparison, the window area of ​​the former form is smaller, and the window area of ​​the latter form is larger. In addition, in the latter form, before using the 360° laser module 21 (the driving device 30 is not started, and the core 20 remains motionless relative to the casing 10), the automatic leveling function can be turned off (if it is mechanical self-balancing, the pendulum 24 is fixed), the laser line projector is tilted, and the straight-line laser module is used to create any desired inclined surface; after starting the driving device 30 and turning on the automatic leveling function, the 360° laser module 21 is exposed from the casing, and the straight-line laser module moves to the end position. Under the automatic leveling function, the straight-line laser module can be used to create horizontal or vertical lines.

[0060] The laser line projector further includes a battery assembly 60, a main board 70 and an adapter board 80 disposed in the housing 10. The main board 70 is electrically connected to the battery assembly 60 and the driving device 30 respectively, the adapter board 80 is electrically connected to the 360° laser module 21, and the main board 70 is electrically connected to the adapter board 80. Figure 1 to Figure 3In the structure shown, under the control of the main board 70, the driving device 30 drives the movement 20 to move, and the adapter plate 80 moves up and down together with the movement 20, thereby reducing the pulling on the wire during the movement. In addition, the driving device 30 has a variety of implementation forms, such as a cylinder form and a hydraulic form. Considering that the space inside the housing 10 is small, the driving device 30 can be in the form of a screw, such as Figure 1 to Figure 3 In the structure shown, the lead screw is connected to the frame 23, and the motor drives the lead screw to move, thereby realizing the rise or fall of the entire movement 20. In addition, in addition to saving space, the lead screw transmission has good stability and can also achieve higher precision requirements.

[0061] It can be seen from the above description that in the embodiment of the present invention, by placing the entire movement inside the casing and only using a driving device to drive the movement, the 360° laser module and the laser output window are exposed, thereby protecting the laser output window.

[0062] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A laser projection device, characterized in that: The invention comprises a casing and a movement arranged in the casing, wherein: The movement includes a 360° laser module, and a window is provided outside the 360° laser module, and a laser output window is provided on the window; The housing is provided with an opening matched with the window; The laser line projector further includes a driving device, the driving device is used to drive the movement to make the window appear from the housing through the opening, and to drive the movement to make the window fall into the housing through the opening; The movement also includes a frame and a pendulum disposed in the frame, and the 360° laser module is fixed to the pendulum; a locking device is provided in the housing, and the locking device is used to fix the pendulum in the off state; The opening is located at the top of the housing, and the driving device is used to drive the movement to move in a vertical direction; the locking device includes: A support member, fixed to the bottom of the housing; A push rod, located below the pendulum body, with one end rotatably connected to the frame and the other end extending above the support member; During the descent of the movement, when one end of the push rod extends out of the frame and presses against the support member, the push rod rotates relative to the frame and pushes the pendulum to a fixed position; during the ascent of the movement, the push rod gradually detaches from the support member; when the 360° laser module rises to its position, the push rod and the support member are completely detached, allowing the pendulum to swing freely.

2. The laser line projector according to claim 1, characterized in that: The supporting member is an elastic element.

3. The laser line projector according to claim 1, characterized in that: When the window falls into the housing through the opening, the top of the window is not higher than the surface of the housing.

4. The laser line projector according to claim 3, characterized in that: A sealing plate is arranged along the edge of the opening in the casing, and the sealing plate encloses a space for accommodating the window.

5. The laser line projector according to claim 4, characterized in that: The window body comprises a top surface and four side surfaces connected to the top surface, and each side surface is provided with a laser output window; The area enclosed by the four side surfaces gradually decreases in a direction away from the top surface; The opening is a quadrilateral, and the area enclosed by the sealing plate gradually decreases in a direction away from the opening.

6. The laser line projector according to claim 1, characterized in that: The driving device is also used to adjust the height of the window exposed from the housing.

7. The laser line projector according to claim 1, characterized in that: The driving device comprises a lead screw and a motor for driving the lead screw to move.

8. The laser line projector according to any one of claims 1 to 7, characterized in that: It also includes a battery assembly, a main board and an adapter board arranged in the housing, the main board is electrically connected to the battery assembly and the driving device respectively, the adapter board is electrically connected to the 360° laser module, and the main board is electrically connected to the adapter board.

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