Laser demarcation device
Through the design of the housing, magnet and ratchet ratchet, combined with the distance sensor and alarm, the problems of easy pouring and angle adjustment offset of the laser projector are solved, achieving higher stability and accuracy.
Patent Information
- Application Number
- CN202422202561.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing laser line projector is easily damaged due to external force collision and dumping during use, and the overall position shift is required when adjusting the angle.
The housing, magnet structure and ratchet ratchet design combines distance sensors and alarms to achieve magnetic adsorption fixation and angle adjustment, reducing the risk of pouring and maintaining accurate position.
It effectively reduces the probability of laser projector falling in the collision, reduces the possibility of position shift after angle adjustment, and improves the stability and accuracy of use.
Smart Images
Figure CN223091295U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of decoration auxiliary tools, in particular to a laser line projector. Background Technique
[0002] A laser line projector, also called an ink line instrument, usually refers to a device that can emit visible lasers vertically or horizontally, used to mark horizontal or vertical lines on the target surface, and can generate multiple laser planes, commonly used for the calibration of reference lines in indoor decoration or equipment installation.
[0003] When the existing laser line projector is in use, it is usually placed directly on a plane using a bracket or tripod, making the instrument relatively flexible when moving. However, since the instrument is only connected to the plane through several contact points at the bottom, the instrument is prone to tipping over after being collided by an external force, resulting in the instrument being easily damaged due to tipping over by collision; in addition, when the existing instrument needs to adjust the angle of laser emission, it usually needs to twist and rotate the entire instrument, so that the instrument needs to be lifted entirely from the plane. When the instrument is placed back on the plane again, it will deviate from the original position, resulting in a large deviation in the subsequent calibrated position of the instrument. Content of the Utility Model
[0004] The purpose of the utility model is to provide a laser line projector to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A laser line projector, including an instrument body, four laser emitting heads are installed on the top of the instrument body, a cavity is opened inside the instrument body, an alarm is fixedly installed inside the cavity, a second net plate is embedded at the top end of the cavity, a second magnet is fixedly connected to the middle of the second net plate, a cover shell is arranged outside the instrument body, a first net plate is embedded in the middle of the top end of the cover shell, a first magnet is fixedly connected to the middle of the first net plate, a spirit level is movably connected to the top of the first magnet, the bottom end of the instrument body is fixedly connected with a movable disc, a ratchet wheel is engaged with the bottom end of the movable disc, a base is arranged at the bottom of the movable disc, and a ratchet tooth is movably connected inside the base.
[0006] Preferably, three grooves are opened at the top end of the cover shell, and internal threads are opened on the inner wall of the bottom end of the cover shell.
[0007] Preferably, external threads are opened on the outer wall of the bottom of the instrument body, and the external threads are movably engaged with the internal threads, and the cover shell is movably covered on the instrument body through the internal threads.
[0008] Preferably, the ratchet wheel is engaged with the ratchet tooth, and the movable disc is movably connected to the base through the ratchet wheel and the ratchet tooth.
[0009] Preferably, the first magnet is connected to the second magnet by magnetic attraction, and the first mesh plate is connected to the second mesh plate by magnetic attraction through the first magnet.
[0010] Preferably, four distance sensors are installed in the middle of the outer wall of the instrument body, and the distance sensors are electrically connected to the alarm.
[0011] Preferably, three semicircular beads are fixedly connected to the bottom end of the base.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. This laser line projector, through the cover, the first mesh plate, the second mesh plate, the first magnet and the second magnet, when the line projector is placed on a flat surface through a tripod for use, cooperates with the distance sensor and the alarm on the outer wall so that an alarm sound can be issued when an object is close to the instrument, and the alarm sound is diffused and amplified through the cover and other structures to warn the user, thereby reducing the probability of the instrument being hit by external force and tipping over, thereby reducing the probability of the instrument being damaged by collision and tipping over.
[0014] 2. This laser line projector uses a movable disk, a base, a ratchet and ratchet teeth. When the laser line projector needs to adjust the angle of the laser emission in the horizontal direction, it only needs to turn the movable disk along the base so that the bottom of the instrument remains in contact with the plane, and the laser emission head on the top can be rotated in the horizontal direction to adjust the angle, avoiding the action of lifting the entire instrument and then putting it back on the plane, thereby reducing the probability of position deviation after the instrument is put back, and reducing the deviation caused by the subsequent calibration position of the instrument. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the second mesh plate and the second magnet structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the distance sensor and alarm structure of the utility model;
[0018] Figure 4 This is a schematic diagram of the cover shell and internal thread structure of the utility model;
[0019] Figure 5 It is a schematic diagram of the base and semicircular bead structure of the utility model.
[0020] In the figure: 1. housing; 2. groove; 3. first mesh plate; 4. spirit level; 5. first magnet; 6. movable plate; 7. base; 8. laser emitter; 9. second mesh plate; 10. second magnet; 11. instrument body; 12. distance sensor; 13. external thread; 14. alarm; 15. cavity; 16. ratchet; 17. ratchet tooth; 18. semi-spherical bead; 19. internal thread. Detailed implementation manners
[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] Such as Figures 1 to 5As shown, the laser line projector of this embodiment includes an instrument body 11, four laser emitting heads 8 are installed on the top of the instrument body 11, a cavity 15 is opened inside the instrument body 11, an alarm 14 is fixedly installed inside the cavity 15, a second mesh plate 9 is embedded in the top of the cavity 15, a second magnet 10 is fixedly connected to the middle of the second mesh plate 9, a cover 1 is provided on the outside of the instrument body 11, a first mesh plate 3 is embedded in the middle of the top of the cover 1, a first magnet 5 is fixedly connected to the middle of the first mesh plate 3, a level bubble 4 is movably connected to the top of the first magnet 5, a movable disk 6 is fixedly connected to the bottom end of the instrument body 11, a ratchet 16 is engaged with the bottom end of the movable disk 6, a base 7 is provided at the bottom of the movable disk 6, and a ratchet 17 is movably connected inside the base 7.
[0025] Specifically, the interior of the instrument body 11 is also equipped with electrical components and various parts required for the normal operation of the projection instrument, and the electrical components and various parts are all existing technologies and will not be repeated in this application. One of the functions of the cavity 15 is to provide an installation space for the alarm, and the second function is to provide a resonance cavity 15 for the buzzer sound emitted by the alarm, so that the sound of the buzzer can be louder. The alarm 14 is a buzzer alarm 14, which can emit a buzzer sound after receiving an electrical signal to warn the user. The function of the second mesh plate 9 is to allow the buzzer sound to smoothly penetrate the outer shell of the instrument body 11, reducing the loss of the buzzer sound during propagation. One of the functions of the cover 1 is to be able to resonate the laser emitter on the instrument body 11 The shooting head 8 and the distance sensor 12 are protected when not in use to avoid damage to the laser shooting head 8 and the distance sensor 12 due to accidental collision. The second function is that after being inverted, they can fit on the top of the instrument body 11, so that the buzzing sound transmitted from the second mesh plate 9 can enter the cover 1 for re-amplification, which is beneficial for the user to hear the buzzing sound in a noisy environment. The first magnet 5 and the second magnet 10 are opposite poles, and can be fixed to each other by magnetic attraction after contact and fitting. The outer wall of the movable disk 6 is provided with a plurality of vertical stripes, which is beneficial for the user to turn. The base 7 is heavy, which lowers the center of gravity of the entire line-casting instrument, which is beneficial to maintain the overall stability of the line-casting instrument and reduce the probability of its tipping.
[0026] Furthermore, three grooves 2 are provided at the top of the cover shell 1, and an internal thread 19 is provided on the inner wall of the bottom end of the cover shell 1. The function of the groove 2 is to facilitate the user to pinch the top of the cover shell 1 and twist it, so that the cover shell 1 can be locked with the external thread 13 on the instrument body 11 through the internal thread 19, thereby facilitating the strengthening of the connection between the cover shell 1 and the instrument body 11.
[0027] Furthermore, an external thread 13 is provided on the outer wall of the bottom of the instrument body 11. The external thread 13 is movably engaged with the internal thread 19. The cover 1 is movably covered with the instrument body 11 through the internal thread 19, so that the cover 1 can be stably engaged outside the instrument body 11, reducing the probability of accidental detachment of the cover 1 during instrument transportation, which is beneficial to better protect the instrument body 11.
[0028] Furthermore, the ratchet wheel 16 is meshed with the ratchet teeth 17. The movable disk 6 is movably connected to the base 7 through the ratchet wheel 16 and the ratchet teeth 17. The ratchet wheel 16 and the ratchet teeth 17 enable the movable disk 6 to rotate orderly along the top of the base 7 and can remain stationary after the movable disk 6 completes rotation, facilitating the user to adjust the laser emission angle in the horizontal direction.
[0029] Furthermore, the first magnet 5 is magnetically adsorbed to the second magnet 10. The first net plate 3 is magnetically adsorbed to the second net plate 9 through the first magnet 5, enabling the first net plate 3 and the second net plate 9 to coincide, which is conducive to the beeping sound passing through the second net plate 9 entering the cover 1 to be amplified, making it easier for the user to hear the beeping sound.
[0030] Furthermore, four distance sensors 12 are installed in the middle of the outer wall of the instrument body 11. The distance sensors 12 are electrically connected to the alarm 14. The distance sensors 12 are ultrasonic sensors, which can send an electrical signal to the controller after the target object moves within the set distance, enabling the controller to control the alarm 14 to start, thereby realizing the alarm 14 to emit a beeping sound.
[0031] Furthermore, three semi-spherical beads 18 are fixedly connected to the bottom end of the base 7. The function of the semi-spherical beads 18 is to lift the bottom of the base 7 when the instrument is directly placed on a plane, making it easier to place the base 7 on a plane with a lower flatness.
[0032] The usage method of this embodiment is as follows: When using this laser line projector, the instrument needs to be placed at a suitable position first. At this time, the semi-spherical beads 18 at the bottom end of the base 7 will fit with the plane. Then, the spirit level 4 in the middle of the top end of the cover 1 can be observed. When the spirit level 4 coincides with the center point of the top end of the cover 1, the movable disk 6 can be pressed, and then the groove 2 at the top of the cover 1 can be pinched and turned, so that the internal thread 19 inside the cover 1 engages and rotates along the external thread 13 at the bottom of the instrument body 11 until the cover 1 is separated from the instrument body 11. Then, the cover 1 can be inverted so that the opening at the bottom of the cover 1 faces upward. At the same time, the first magnet 5 and the second magnet 10 will be adsorbed by magnetic force, and the first net plate 3 and the second net plate 9 will also coincide. Then, this line projector can be started to be used. When it is necessary to adjust the horizontal angle of the laser emission, the base 7 can be pressed and the movable disk 6 can be toggled so that the movable disk 6 rotates horizontally along the base 7, driving the laser emitter 8 on the instrument body 11 to rotate horizontally, so as to adjust the horizontal angle of the laser emission. When an object approaches the instrument body 11 and the distance from the instrument body 11 is within the triggering range of the distance sensor 12, the distance sensor 12 on the outer wall of the instrument body 11 will send a signal to the controller, so that the controller controls the alarm 14 to emit a beeping sound. Then, the beeping sound will pass through the cavity 15 and pass out from the second net plate 9, then penetrate into the first net plate 3, and then be amplified through the cover 1. When the user hears the beeping sound, they need to pay attention to the objects and the location around the line projector in time, so that the line projector is not easily damaged due to being collided and toppled by an external force.
[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A laser line projector, comprising an instrument body (11), characterized in that: Four laser emitting heads (8) are installed on the top of the instrument body (11). A cavity (15) is provided inside the instrument body (11). An alarm (14) is fixedly installed inside the cavity (15). A second mesh plate (9) is embedded at the top end of the cavity (15). A second magnet (10) is fixedly connected to the middle of the second mesh plate (9). A housing (1) is provided outside the instrument body (11). A first mesh plate (3) is embedded in the middle of the top end of the housing (1). A first magnet (5) is fixedly connected to the middle of the first mesh plate (3). A spirit level (4) is movably connected to the top of the first magnet (5). A movable disc (6) is fixedly connected to the bottom end of the instrument body (11). A ratchet wheel (16) is engaged with the bottom end of the movable disc (6). A base (7) is provided at the bottom of the movable disc (6). A ratchet tooth (17) is movably connected inside the base (7).
2. The laser line projector according to claim 1, wherein: Three grooves (2) are provided at the top end of the housing (1). Internal threads (19) are provided on the inner wall of the bottom end of the housing (1).
3. The laser line projector according to claim 2, characterized in that: External threads (13) are provided on the outer wall of the bottom of the instrument body (11). The external threads (13) are movably engaged with the internal threads (19). The housing (1) is movably sleeved on the instrument body (11) through the internal threads (19).
4. A laser line projector according to claim 1, wherein: The ratchet wheel (16) is engaged with the ratchet tooth (17). The movable disc (6) is movably connected to the base (7) through the ratchet wheel (16) and the ratchet tooth (17).
5. A laser line projector according to claim 1, characterized in that: The first magnet (5) is magnetically adsorbed to the second magnet (10). The first mesh plate (3) is magnetically adsorbed to the second mesh plate (9) through the first magnet (5).
6. A laser line projector according to claim 1, wherein: Four distance sensors (12) are installed in the middle of the outer wall of the instrument body (11). The distance sensors (12) are electrically connected to the alarm (14).
7. A laser line projector according to claim 1, wherein: Three hemispherical beads (18) are fixedly connected to the bottom end of the base (7).