CN205449048U - Suspension type laser level - Google Patents

Abstract

The utility model provides a suspension type laser level: include laser emitter, gun sight, tripod and set up the cantilever that can rotate on the tripod, laser emitter hangs on the cantilever, the gun sight sets up in laser emitter's bottom. The utility model discloses a hang laser emitter on the cantilever, utilize laser emitter's dead weight itself to carry out the leveling, avoided artifical leveling surveyor's level for the leveling degree of difficulty reduces, reduction consuming time, and the precision improves.

Description

Hanging laser level

technical field

The utility model belongs to the field of road surveying, in particular to a suspended laser level measuring device.

Background technique

The level is an instrument based on the principle of leveling to establish a horizontal line of sight to measure the height difference between two points on the ground. Its main components include a telescope, a tube level, a vertical axis, a base and a foot screw. The readings of the level meter are objective and easy to operate, which greatly improves the accuracy and efficiency of base-level and mid-level measurement in engineering practice. It is currently the most widely used leveling device in the road survey industry and is essential in the entire road survey and design process.

There are mainly the following types of levels currently on the market: Micro-incline levels are a common level that uses a slightly-inclined spiral to obtain a horizontal line of sight. Because the slightly-inclined spiral must be adjusted before each reading, the half of the bubble at both ends of the bubble observation window will Like coincidence, it makes leveling more difficult, takes too long and errors will occur if you are not careful. The automatic leveling level is a level that obtains the horizontal line of sight with the help of the automatic leveling compensator. It has higher work efficiency and stable accuracy than the slightly inclined level. It is often used in windy and temperature-changing areas. A digital level is a level that automatically obtains readings through the digital imaging system built into the instrument. The digital level can greatly reduce the labor intensity of surveying and mapping operations, avoid artificial subjective reading errors, and improve measurement accuracy and efficiency. However, the digital level is easily affected by the light intensity, which makes it impossible to carry out open-air operations at night, cloudy days, and noon when the sun is strongly irradiated (atmospheric refraction effect will occur); Insufficient sunlight, weak artificial lighting, etc., make it difficult to carry out leveling. The laser level is a level that uses laser beams instead of manual readings. The laser has strong penetrability and is not affected by external light intensity, so that it can be used at night, at noon when the sun is strong, or in tunnels where there is insufficient sunlight and weak artificial lighting. Operations are carried out normally in the survey environment, and the survey process will not be delayed due to the influence of environmental conditions. However, the existing laser level still requires manual leveling.

Contents of the invention

The purpose of the utility model is to provide a suspended laser level, so that the level can easily locate the horizontal line at a distance no matter what the light intensity is.

In order to achieve the above object, the utility model adopts the following technical solutions:

The laser level includes a laser emitter, a sight, a tripod and a rotatable cantilever arranged on the tripod, the laser emitter is suspended on the cantilever, and the sight is arranged at the bottom of the laser emitter.

The laser level also includes a steel wire for suspending the laser emitter, one end of the steel wire is connected to the cantilever, and the other end extends vertically below the cantilever.

The geometric center of the laser emitter coincides with the center of gravity, and the other end of the steel wire is fixed to the geometric center of the laser emitter.

The model of the laser transmitter is MTO-laserM-33A450-1000-G.

The length of the steel wire extending below the cantilever can be adjusted.

A knob for adjusting the extension length of the steel wire to the bottom of the cantilever is arranged on the cantilever.

The beneficial effects of the utility model are reflected in:

The utility model suspends the laser emitter on the cantilever and utilizes the self-weight of the laser emitter to perform leveling, which avoids manual leveling of the leveling instrument, reduces the difficulty of leveling, reduces time-consuming, and improves precision.

Description of drawings

Fig. 1 is the overall structural diagram of the suspended laser level of the utility model;

Figure 2 is a partially enlarged view of Figure 1;

In the figure: 1-laser transmitter, 2-steel wire, 3-knob, 4-cantilever, 5-tripod, 6-scope.

detailed description

The utility model is described in detail below in conjunction with accompanying drawing and embodiment.

Aiming at the problems of small application range, low measurement efficiency and high leveling difficulty of the existing level gauge, the utility model uses a suspended laser transmitter 1 to make the level gauge overcome many unfavorable factors such as light intensity on the basis of the existing level, and is more Efficiently and accurately serve road survey field operations.

Referring to FIG. 1 and FIG. 2 , the suspended laser level of the present invention includes a tripod 5 , a rotatable cantilever 4 , a steel wire 2 , a laser emitter 1 and a miniature sight 6 . The rotatable cantilever 4 is mounted on the tripod 5 by screwing, the upper part of the steel wire 2 is connected with the cantilever 4 through a knob, and the lower part is connected with the geometric center (coinciding with the center of gravity) of the laser emitter 1, so that The laser transmitter is suspended on the cantilever 4 , and the miniature scope 6 is arranged at the bottom of the laser transmitter 1 .

The method of using the above suspended laser level is as follows:

First, the tripod 5 is erected at a position where the leveling rods on both sides can be seen by visual inspection. The height of the tripod 5 will be determined according to the actual topography and the length of the leveling rod used. Since the gravity is vertically downward, the center of gravity of the laser transmitter 1 is located at At its geometric center, the steel wire 2 is connected to the geometric center, so the emitted laser is perpendicular to the steel wire 2 and automatically horizontal. Simultaneously the length of suspension steel wire also can be artificially regulated according to actual conditions with the knob of steel wire 2 and cantilever 4 junction.

Then turn on the laser emitter 1, aim at it through the miniature sight 6, make the cantilever 4 rotate a certain angle, and finally find the inline laser line emitted by the laser emitter on the leveling rod to be measured to set the cantilever 4 Fixed, since the emitted laser is automatically leveled, the complicated and time-consuming leveling process is avoided.

Finally, the observation reading is carried out, that is, the observer holding the leveling rod on both sides reads the data at the position aligned with the inline laser line projected on the leveling rod. (In order to avoid accidental damage to the surveyor by the laser, the surveyor can wear filter glasses)

By adopting such a technical scheme as above, only need to hang the laser transmitter 1 on the tripod 5 through the cantilever 4 under the condition that the tripod 5 is properly placed during use, and the horizontal line measured by the laser transmitter 1 can be used. One-shaped laser line, during construction, only need to directly grasp the unified level standard according to the horizontal one-shaped horizontal laser line, thus solving the problem that the current level is difficult to locate the horizontal horizontal line in the measurement and use, it is extremely convenient to use, and the horizontal line is positioned accurately reliable. At the same time, based on the characteristics of strong laser penetration and not being affected by light intensity, it can be used in any external environment with light intensity, and the shell of the laser transmitter 1 is made of waterproof material, which avoids the influence of rain and snow and will not subject to corrosion. At the same time, by increasing the rigidity of the steel wire 2 and the self-weight of the casing of the laser transmitter, it can withstand a certain level of wind force and will not be disturbed by the wind.

In a word, the utility model not only solves the problem of manually leveling the level, but also greatly improves the measurement efficiency and reading accuracy.

Claims (6)

1. A suspended laser level, characterized in that: the laser level comprises a laser transmitter (1), a sight (6), a tripod (5) and a rotatable cantilever (4) arranged on the tripod (5) , the laser emitter (1) is suspended on the cantilever (4), and the sight (6) is arranged at the bottom of the laser emitter (1). 2. A kind of suspended laser level according to claim 1, characterized in that: said laser level also includes a steel wire (2) for suspending the laser transmitter (1), one end of said steel wire (2) is connected to said The cantilever (4) is connected to each other, and the other end extends downward to the cantilever (4) along the vertical direction. 3. A kind of suspended laser level according to claim 2, characterized in that: the geometric center of the laser emitter (1) coincides with the center of gravity, and the other end of the steel wire (2) is fixed to the laser emitter (1) ) geometric center. 4. A suspended laser level according to claim 1 or 2, characterized in that: the model of the laser transmitter (1) is MTO-laserM-33A450-1000-G. 5. A suspended laser level according to claim 2, characterized in that: the length of the steel wire (2) extending below the cantilever (4) is adjustable. The suspended laser level according to claim 2, characterized in that: the cantilever (4) is provided with a knob for adjusting the extension length of the steel wire (2) to the bottom of the cantilever (4).