Laser line projection device for engineering

By installing a tripod and steel feet structure at the bottom of the laser line projector, combined with damping plates for clamping, the problem of the laser line projector being prone to tipping over has been solved, achieving higher stability and safety.

CN224303041UActive Publication Date: 2026-05-29SHANGHAI BELDEN PROJECT MANAGEMENT CONSULTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BELDEN PROJECT MANAGEMENT CONSULTING CO LTD
Filing Date
2025-07-17
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing laser line projectors are prone to tipping over due to collisions at construction sites, which can damage internal precision optical and electronic components and affect their accuracy.

Method used

A laser projection device for engineering applications was designed, which adopts a tripod and steel foot structure. By installing an extended steel foot at the bottom of the laser projection device to increase the bottom area, and combining it with a damping plate for clamping and fixing, the stability is improved.

Benefits of technology

It effectively prevents the laser line projector from tipping over during use, protects internal components, and improves safety and accuracy.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224303041U_ABST
    Figure CN224303041U_ABST
Patent Text Reader

Abstract

The utility model discloses an engineering laser line projection device, including laser line projector main part, the base is connected with the bottom bearing of laser line projector main part, the horizontal bubble is provided in the top center of laser line projector main part, the adjusting knob is provided at the top of laser line projector main part, the plumb line emission window and horizontal line emission window are sequentially provided from top to bottom in the side wall of laser line projector main part, the switch knob is provided in the horizontal line emission window side, the plumb line fine adjustment knob is provided to the base outer wall, the fine adjustment support leg is provided around the base bottom, the utility model discloses through the mutual cooperation between laser line projector main part, tripod and steel foot, through installing the steel foot of outside expansion in the bottom of laser line projector, in the use, effectively improved the bottom area of laser line projector, thereby improved the use stability of laser line projector, made it not easy to fall in the use process and collide, protected the internal element of laser line projector, improved the security.
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Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, specifically to a laser line projection device for engineering applications. Background Technology

[0002] Laser line projection technology refers to the method of projecting highly precise and visible straight, horizontal, vertical, or intersecting lines using laser equipment in fields such as construction engineering, decoration construction, civil engineering, equipment installation, and machinery manufacturing. This is used for measurement, alignment, leveling, and marking of position and direction. It replaces traditional tools such as ink lines, plumb lines, levels, and string lines with a laser beam, thus providing a more efficient, accurate, and intuitive baseline.

[0003] Most laser projection devices commonly found on the market are laser projection meters. Currently available laser projection meters are supported by three fine-tuning feet at the bottom. During use, there is a lot of foot traffic on construction sites, and if the projection meter is bumped, it is easy to tip over. Once the projection meter tipped over, its internal precision optical components, pendulum mechanism, and electronic components are easily damaged, which can lead to inaccurate projection and affect its use.

[0004] Therefore, we propose to design a laser line projection device for engineering applications. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A laser line projection device for engineering applications includes a laser line projector body, a base connected to the bottom of the laser line projector body by a bearing, a spirit level at the center of the top of the laser line projector body, an adjustment knob on the top of the laser line projector body, vertical line emission windows and horizontal line emission windows arranged sequentially from top to bottom on the side wall of the laser line projector body, a switch knob on the side of the horizontal line emission window, a vertical fine-tuning knob on the outer wall of the base, fine-tuning feet around the bottom of the base, and a support mechanism at the bottom of the base.

[0008] The support mechanism includes a tripod with an inclined groove inside. A steel leg is slidably connected inside the inclined groove. A fixing screw is provided on the side wall of the tripod, and the fixing screw passes through the tripod and is fixedly connected to a damping plate.

[0009] As a preferred embodiment of the laser projection device for engineering applications described in this utility model, a positioning bolt is provided at the center of the bottom of the tripod. The positioning bolt passes through the tripod and is fixedly connected to the base, which facilitates the assembly and replacement of the tripod.

[0010] As a preferred embodiment of the laser projection device for engineering applications described in this utility model, a limiting block is fixedly connected to the top of the steel foot, and a limiting groove corresponding to the limiting block is opened inside the inclined groove, which can prevent the steel foot from falling out of the inclined groove and play a limiting role for the steel foot.

[0011] In a preferred embodiment of the laser projection device for engineering applications described in this utility model, the damping plate is tightly fitted to the outer wall of the steel foot, and the damping plate can be clamped and fixed to the outside of the steel foot by tightening the fixing screws.

[0012] As a preferred embodiment of the laser projection device for engineering applications described in this utility model, three fine-tuning feet are provided, which are staggered with the three feet of the tripod. When the steel feet are pulled out from the tripod, the bottom area of ​​the laser projection device body can be expanded, thereby improving the stability of the laser projection device body, making it less prone to tipping over, and enhancing safety.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes the cooperation between the main body of the laser projector, the tripod, and the steel feet. By installing extended steel feet at the bottom of the laser projector, the bottom area of ​​the laser projector is effectively increased during use, thereby improving the stability of the laser projector and making it less likely to tip over during use. This protects the internal components of the laser projector and enhances safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This utility model provides a three-dimensional laser projection device for engineering applications. Figure 1 ;

[0017] Figure 2 This utility model provides a three-dimensional laser projection device for engineering applications. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the support mechanism of a laser line projection device for engineering applications according to this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the inclined groove of a laser projection device for engineering applications according to this utility model.

[0020] Legend: 1. Main body of laser line projector; 2. Base; 3. Level bulb; 4. Adjustment knob; 5. Vertical line emission window; 6. Horizontal line emission window; 7. Switch knob; 8. Vertical line fine-tuning knob; 9. Fine-tuning support leg; 10. Support mechanism; 101. Tripod; 102. Inclined groove; 103. Steel foot; 104. Fixing screw; 105. Damping plate; 11. Limit block. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Please see Figure 1-4 This utility model provides a laser line projection device for engineering applications, including a laser line projector body 1, a base 2 connected to the bottom bearing of the laser line projector body 1, a spirit level 3 at the center of the top of the laser line projector body 1, an adjustment knob 4 at the top of the laser line projector body 1, vertical line emission windows 5 and horizontal line emission windows 6 arranged sequentially from top to bottom on the side wall of the laser line projector body 1, a switch knob 7 on the side of the horizontal line emission window 6, a vertical fine-tuning knob 8 on the outer wall of the base 2, and fine-tuning feet 9 around the bottom of the base 2.

[0025] The base 2 is provided with a support mechanism 10 at its bottom. The support mechanism 10 includes a tripod 101. A positioning bolt is provided at the center of the bottom of the tripod 101. The positioning bolt passes through the tripod 101 and is fixedly connected to the base 2, which facilitates the assembly and replacement of the tripod 101.

[0026] In this embodiment, three fine-tuning feet 9 are provided. The three fine-tuning feet 9 are staggered with the three feet of the tripod 101. When the steel foot 103 is pulled out from the tripod 101, the bottom area of ​​the laser projector body 1 can be expanded, thereby improving the stability of the laser projector body 1, making it less likely to tip over, and enhancing safety.

[0027] The tripod 101 has an inclined groove 102 inside, and a steel foot 103 is slidably connected inside the inclined groove 102. A limit block 11 is fixedly connected to the top of the steel foot 103. A limit groove corresponding to the limit block 11 is opened inside the inclined groove 102, which can prevent the steel foot 103 from coming out of the inclined groove 102 and play a limiting role for the steel foot 103.

[0028] The tripod 101 has a fixing screw 104 on its side wall. The fixing screw 104 passes through the tripod 101 and is fixedly connected to a damping plate 105. The damping plate 105 is tightly attached to the outer side wall of the steel foot 103. By tightening the fixing screw 104, the damping plate 105 can be tightly attached to the outside of the steel foot 103 and clamped and fixed.

[0029] When used in confined spaces, the support mechanism 10 cannot be fully extended. This reduces the risk of collision and tipping for the laser projector body 1 due to the small installation area. Furthermore, the extendable steel legs 103 of the tripod 101 can be pulled out. The steel legs 103 near the wall of the laser projector body 1 do not need to extend, while the two outermost steel legs 103 can be pulled out. If the area is too small, the tripod 101 can be disassembled, and the laser projector body 1 can be used directly.

[0030] When using in an open area, take out the laser projector body 1 and place it on the ground. First, level the laser projector body 1 by turning the fine-tuning feet 9 with reference to the top level bubble 3. Then, pull out the steel feet 103 of the three feet of the tripod 101 until the ends of the steel feet 103 are in contact with the ground. Then, turn the fixing screws 104 to drive the damping plates 105 to clamp the side walls of the steel feet 103 and fix the steel feet 103. At this time, the three steel feet 103 extend outward, increasing the bottom area of ​​the laser projector body 1, thereby improving the stability of the laser projector body 1. When it is hit, the laser projector body 1 is less likely to tip over, thus protecting the safety of the internal components of the projector and improving the safety of use.

[0031] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A laser line projection device for engineering applications, comprising a laser line projector body (1), characterized in that, The laser projector body (1) is connected to a base (2) by a bearing at the bottom. A spirit level (3) is provided at the center of the top of the laser projector body (1). An adjustment knob (4) is provided at the top of the laser projector body (1). A vertical line emission window (5) and a horizontal line emission window (6) are provided on the side wall of the laser projector body (1) from top to bottom. A switch knob (7) is provided on the side of the horizontal line emission window (6). A vertical fine-tuning knob (8) is provided on the outer wall of the base (2). Fine-tuning feet (9) are provided around the bottom of the base (2). A support mechanism (10) is provided at the bottom of the base (2). The support mechanism (10) includes a tripod (101), the tripod (101) has an inclined groove (102) inside, a steel foot (103) is slidably connected inside the inclined groove (102), and a fixing screw (104) is provided on the side wall of the tripod (101). The fixing screw (104) passes through the tripod (101) and is fixedly connected to a damping plate (105).

2. The laser line projection device for engineering applications according to claim 1, characterized in that, A positioning bolt is provided at the center of the bottom of the tripod (101), and the positioning bolt passes through the tripod (101) and is fixedly connected to the base (2).

3. The laser line projection device for engineering applications according to claim 1, characterized in that, The top of the steel foot (103) is fixedly connected to a limiting block (11), and the inclined groove (102) is provided with a limiting groove corresponding to the limiting block (11).

4. The laser line projection device for engineering applications according to claim 1, characterized in that, The damping plate (105) is in close contact with the outer wall of the steel foot (103).

5. The laser line projection device for engineering applications according to claim 1, characterized in that, The three fine-tuning feet (9) are provided, and the three fine-tuning feet (9) are staggered with the three feet of the tripod (101).