Leveling device of laser demarcation device
By adjusting the height and angle of the support feet using a combination of main motor and worm gear, and combining this with a level sensor, the laser line projector achieves automatic leveling, solving the tilting problem caused by inconsistent support and improving accuracy and convenience.
Patent Information
- Application Number
- CN202423089582.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing laser line projectors tend to tilt when fixed in a position due to inconsistent support heights of the legs, making them unable to automatically level and affecting accuracy.
The system uses a main motor to drive a screw to rotate and adjust the height of the support feet. The worm gear and worm wheel mesh to adjust the angle of the support feet. Combined with a level sensor, it achieves automatic leveling and transmits data in real time via a wireless transmitter.
It enables automatic leveling of the laser line projector, improving its accuracy and practicality, preventing foreign objects from affecting the adjustment accuracy, and facilitating maintenance.
Smart Images

Figure CN223649020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser line projector technology, specifically to a leveling device for a laser line projector. Background Technology
[0002] A laser level is a level that directs a laser beam emitted by a laser device into the telescope tube of the level, causing it to project along the line of sight. There are two types of laser levels: dedicated laser levels and levels with a laser device attached to the level. When used with a leveling rod equipped with a photoelectric receiving target, leveling measurements can be performed. Compared with optical levels, laser levels have advantages such as high accuracy, long line of sight, and automatic reading and recording capabilities. Currently, when laser projectors are in a fixed position, the uneven height of the support legs can easily cause the entire system to tilt. This tilts the laser projector's angle and makes it difficult to automatically level it, affecting its use. Therefore, we propose a leveling device for laser projectors. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a leveling device for a laser line projector. The device uses a main motor to drive the screw to rotate to adjust the height of the support feet, while the worm gear and worm wheel can mesh to adjust the angle of the support feet. In conjunction with a level sensor, the installed laser line projector can be automatically leveled in real time to improve its practicality and effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a leveling device for a laser line projector, comprising a frame and an adjustment unit;
[0005] Frame: A placement slot is provided in the center of the top surface;
[0006] Adjustment unit: includes a bracket, adjustment shaft, fixed column, main motor, screw, and support foot. The bracket is evenly fixed on the outside of the frame. The adjustment shaft is rotatably connected inside the bracket. The fixed column is fixed on the outside of the adjustment shaft. The fixed column has a groove inside. The support foot is slidably connected to the groove inside the fixed column. The main motor is fixed on the top surface of the fixed column. The output shaft of the main motor is connected to the top end of the screw. The screw is threadedly connected to the screw hole in the middle of the support foot.
[0007] It also includes a controller, which is located on the front side of the frame. The input end of the main motor is electrically connected to the output end of the controller, and the input end of the controller is electrically connected to the output end of an external power source.
[0008] The main motor is started to drive the screw to rotate, so that the support feet slide inside the fixed column to adjust the height of the three support feet, thereby leveling the device according to the tilt of the laser projector installed on the top surface of the frame.
[0009] Furthermore, the adjustment unit also includes an auxiliary motor, a support frame, a worm gear, and a worm wheel. The support frame is fixed to the side of the bracket, and the auxiliary motor is fixed to the top surface of the support frame. The output shaft of the auxiliary motor is connected to the top end of the worm gear. The worm wheel is installed at the end of the adjustment shaft, and the worm gear meshes with the worm wheel. The input end of the auxiliary motor is electrically connected to the output end of the controller. The auxiliary motor drives the worm gear to mesh with the worm wheel to adjust the angle of the support foot.
[0010] Furthermore, the adjustment unit also includes a level sensor, which is placed inside the placement slot. The output of the level sensor is electrically connected to the input of the controller. The level sensor can detect the tilt of the laser projector, thereby activating the main motor and the auxiliary motor to automatically adjust the level of the laser projector.
[0011] Furthermore, it also includes brackets, springs, and protective plates. There are two brackets, which are fixed to the front and rear sides of the placement slot respectively. There are two springs, which are fixed to the left and right sides of the placement slot respectively. The top of the spring is connected to one side of the bottom surface of the protective plate. The extension and retraction of the spring makes it convenient for personnel to open and close the protective plate, which facilitates subsequent maintenance.
[0012] Furthermore, it also includes a protective shell, a mounting groove, and an anti-detachment bracket. The mounting groove is formed on the surface of the bracket, and the anti-detachment bracket is correspondingly engaged with the support frame. The anti-detachment bracket is slidably installed inside the mounting groove. The anti-detachment bracket sliding inside the mounting groove fixes the protective shell to prevent foreign objects from entering and affecting the accuracy of subsequent adjustments.
[0013] Furthermore, it also includes a wireless transmitter, which is fixed to the bottom of the protective plate. The output of the wireless transmitter is electrically connected to the input of the controller. The wireless transmitter can transmit the adjustment data of the laser projector to personnel in real time for their convenience.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This laser line projector has the following advantages:
[0015] 1. By starting the main motor to drive the screw to rotate, the support feet slide inside the fixed column to adjust the height of the three support feet. Meanwhile, the auxiliary motor drives the worm gear to mesh with the worm wheel to adjust the angle of the support feet, thereby leveling the system according to the tilt of the laser projector installed on the top surface of the frame.
[0016] 2. The tilt of the laser projector can be detected by a level sensor, which will then activate the main motor and auxiliary motor to automatically adjust the laser projector to a horizontal position. The wireless transmitter can transmit the adjustment data of the laser projector to personnel in real time for easy viewing.
[0017] 3. The protective shell is fixed by the anti-detachment bracket that slides inside the mounting slot to prevent foreign objects from entering and affecting the accuracy of subsequent adjustments. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the adjustment unit structure of this utility model;
[0020] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0021] In the diagram: 1. Frame, 2. Adjustment unit, 21. Bracket, 22. Adjustment shaft, 23. Fixed column, 24. Main motor, 25. Screw, 26. Support foot, 27. Auxiliary motor, 28. Support frame, 29. Worm gear, 210. Worm wheel, 211. Horizontal sensor, 3. Placement slot, 4. Bracket, 5. Spring, 6. Protective plate, 7. Protective shell, 8. Mounting slot, 9. Anti-detachment frame, 10. Wireless transmitter, 11. Controller. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-3 This embodiment provides a technical solution: a leveling device for a laser line projector, comprising a frame 1 and an adjustment unit 2;
[0024] Frame 1: A placement slot 3 is provided in the middle of the top surface;
[0025] Adjustment unit 2 includes a bracket 21, an adjustment shaft 22, a fixed column 23, a main motor 24, a screw 25, and support feet 26. The bracket 21 is evenly fixed to the outside of the frame 1. The adjustment shaft 22 is rotatably connected inside the bracket 21. The fixed column 23 is fixed to the outside of the adjustment shaft 22. The fixed column 23 has a groove inside. The support feet 26 are slidably connected to the groove inside the fixed column 23. The main motor 24 is fixed to the top surface of the fixed column 23. The output shaft of the main motor 24 is connected to the top end of the screw 25. The screw 25 is threadedly connected to the screw hole in the middle of the support feet 26. Adjustment unit 2 also includes an auxiliary motor 27, a support frame 28, a worm gear 29, and a worm wheel 210. The support frame 28 is fixed to the side of the bracket 21. A secondary motor 27 is fixed on the top surface of 28. The output shaft of the secondary motor 27 is connected to the top end of the worm 29. The worm wheel 210 is installed at the end of the adjusting shaft 22. The worm 29 and the worm wheel 210 mesh. The input end of the secondary motor 27 is electrically connected to the output end of the controller 11. The secondary motor 27 drives the worm 29 to mesh with the worm wheel 210 to adjust the angle of the support foot 26. The adjusting unit 2 also includes a horizontal sensor 211. The horizontal sensor 211 is placed inside the placement slot 3. The output end of the horizontal sensor 211 is electrically connected to the input end of the controller 11. The horizontal sensor 211 can detect the tilt of the laser projector, thereby activating the main motor 24 and the secondary motor 27 to automatically adjust the horizontal position of the laser projector.
[0026] The system also includes a controller 11, located on the front side of the frame 1. The input of the main motor 24 is electrically connected to the output of the controller 11, and the input of the controller 11 is electrically connected to the output of an external power supply. Starting the main motor 24 rotates the screw 25, causing the support feet 26 to slide inside the fixed column 23, thus adjusting the height of the three support feet 26 to level the system according to the tilt of the laser projector mounted on the top surface of the frame 1. The system also includes brackets 4, springs 5, and a protective plate 6. There are two brackets 4, fixed to the front and rear sides of the placement slot 3 respectively. There are two springs 5, fixed to the left and right sides of the placement slot 3 respectively. The top of each spring 5 is connected to one side of the bottom surface of the protective plate 6. The telescopic extension mechanism allows personnel to easily switch on / off the protective plate 6, facilitating subsequent maintenance. It also includes a protective shell 7, a mounting groove 8, and an anti-detachment bracket 9. The mounting groove 8 is located on the surface of the bracket 21, and the anti-detachment bracket 9 is correspondingly engaged with the support frame 28. The anti-detachment bracket 9 is slidably installed inside the mounting groove 8, securing the protective shell 7 to prevent foreign objects from entering and affecting the accuracy of subsequent adjustments. It also includes a wireless transmitter 10, fixed to the bottom surface of the protective plate 6. The output of the wireless transmitter 10 is electrically connected to the input of the controller 11, allowing the wireless transmitter 10 to transmit the laser projector's adjustment data to personnel in real time for easy viewing.
[0027] The working principle of the leveling device for the laser projector provided by this utility model is as follows: First, the horizontal sensor 211 can detect the tilt of the laser projector installed on the top surface of the frame 1. When the laser projector tilts, the main motor 24 is automatically started to drive the screw 25 to rotate, so that the support feet 26 slide inside the fixed column 23 to adjust the height of the three support feet 26. At the same time, the auxiliary motor 27 drives the worm gear 29 to mesh with the worm wheel 210 to adjust the angle of the support feet 26. This can level the laser projector. The wireless transmitter 10 can transmit the adjustment data of the laser projector to the personnel in real time for easy viewing. The anti-detachment bracket 9 sliding inside the mounting groove 8 fixes the protective shell 7 to prevent foreign objects from entering and affecting the accuracy of subsequent adjustments. Finally, the spring 5 extends and retracts to facilitate the opening and closing of the protective plate 6, which facilitates subsequent maintenance.
[0028] It is worth noting that the controller 11 disclosed in the above embodiments is model S7-200, while the level sensor 211 can be freely configured according to the actual application scenario. It is recommended to use a level sensor of model QJ926S, and the wireless transmitter 10 can be a wireless transmitter of model WJL-207. The controller 11 controls the main motor 24, auxiliary motor 27, level sensor 211, and wireless transmitter 10 using methods commonly used in the prior art.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A leveling device for a laser line projector, characterized in that: It includes a frame (1) and an adjustment unit (2); Frame (1): A placement slot (3) is provided in the middle of the top surface; Adjustment unit (2): includes bracket (21), adjustment shaft (22), fixed column (23), main motor (24), screw (25) and support foot (26). The bracket (21) is evenly fixed on the outside of the frame (1). The adjustment shaft (22) is rotatably connected inside the bracket (21). The fixed column (23) is fixed on the outside of the adjustment shaft (22). The fixed column (23) has a groove inside. The support foot (26) is slidably connected to the groove inside the fixed column (23). The main motor (24) is fixed on the top surface of the fixed column (23). The output shaft of the main motor (24) is connected to the top end of the screw (25). The screw (25) is threadedly connected to the screw hole in the middle of the support foot (26). The system also includes a controller (11), which is located on the front side of the frame (1). The input end of the main motor (24) is electrically connected to the output end of the controller (11), and the input end of the controller (11) is electrically connected to the output end of an external power source.
2. The leveling device for the laser line projector according to claim 1, characterized in that: The adjustment unit (2) also includes an auxiliary motor (27), a support frame (28), a worm (29), and a worm wheel (210). The support frame (28) is fixed to the side of the bracket (21), and the auxiliary motor (27) is fixed to the top surface of the support frame (28). The output shaft of the auxiliary motor (27) is connected to the top end of the worm (29). The worm wheel (210) is installed at the end of the adjustment shaft (22). The worm (29) meshes with the worm wheel (210). The input end of the auxiliary motor (27) is electrically connected to the output end of the controller (11).
3. The leveling device for the laser line projector according to claim 2, characterized in that: The adjustment unit (2) also includes a level sensor (211), which is placed inside the placement slot (3). The output of the level sensor (211) is electrically connected to the input of the controller (11).
4. The leveling device for the laser line projector according to claim 1, characterized in that: It also includes a bracket (4), a spring (5) and a protective plate (6). There are two brackets (4) and they are fixed to the front and rear sides of the placement slot (3) respectively. There are two springs (5) and they are fixed to the left and right sides of the placement slot (3). The top of the spring (5) is connected to one side of the bottom surface of the protective plate (6).
5. The leveling device for the laser line projector according to claim 2, characterized in that: It also includes a protective shell (7), a mounting groove (8) and an anti-detachment bracket (9). The mounting groove (8) is opened on the surface of the bracket (21). The anti-detachment bracket (9) is correspondingly engaged with the support frame (28). The anti-detachment bracket (9) is slidably installed inside the mounting groove (8).
6. The leveling device for the laser line projector according to claim 1, characterized in that: It also includes a wireless transmitter (10), which is fixed to the bottom surface of the protective plate (6), and the output of the wireless transmitter (10) is electrically connected to the input of the controller (11).