Levelness measuring device
By using magnetic seats, slings and laser emitting devices in the horizontal measurement device, combined with light sensors and light shielding cloth, the problem of artificial error in traditional technology is solved, and higher measurement accuracy and stability are achieved.
Patent Information
- Application Number
- CN202421059148.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-15
AI Technical Summary
Traditional level measurement technology relies on laser collimator and ruler, and operator hand tremor and line of sight deviation lead to inaccurate readings, especially under high accuracy requirements, artificial errors are inevitable.
Design a horizontal measurement device, use a magnetic seat to install the measuring device on the bottom of the object to be suspended, combine the first and second slaloms to sag naturally, and is equipped with a laser emitting device and a light sensor to reduce manual reading errors and pass The shade cloth and heavy hammer ensure measurement accuracy.
It effectively reduces the error caused by manual grasping, reduces the error caused by manual reading, and ensures measurement accuracy, especially under long-term continuous operation or high-precision requirements.
Smart Images
Figure CN222211694U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of level measurement, and particularly relates to a level measurement device. Background Art
[0002] Traditional level measurement technology, especially the operation that relies on laser collimators and rulers, can meet basic measurement needs to a certain extent, but there are still the following shortcomings: As a common precision measurement tool, laser collimators provide a visual straight line reference by emitting laser beams, and are often used to determine the straightness, horizontality or verticality between two or more points. When used in conjunction with a ruler, the usual practice is to fix the laser collimator at one end, place the ruler along the predetermined measurement path, and judge and adjust the horizontal state of the measured surface by observing the position of the laser spot on the ruler. The alignment and reading of the laser collimator and ruler depend on the operator's skills and experience. Any slight hand shake or line of sight deviation may lead to inaccurate readings, especially under long-term continuous operation or high-precision requirements, human errors are difficult to avoid. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a level measuring device. The measuring device is installed on the bottom of the suspended object through a magnetic seat. The first hanging ruler and the second hanging ruler droop naturally to reduce the error caused by manual handling. The laser emitting device is used in conjunction with a light sensor and a shading cloth to reduce the error caused by manual reading.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0005] A level measuring device comprises a first hanging ruler and a second hanging ruler, wherein the first hanging ruler and the second hanging ruler cooperate with a laser emitting device to measure the level of a suspended object; the tops of the first hanging ruler and the second hanging ruler are both hinged with magnetic seats, and scale marks are provided on the first hanging ruler and the second hanging ruler; and the laser emitting device is fixed on the second hanging ruler.
[0006] Preferably, the first hanging ruler and the second hanging ruler are rectangular frame structures, the laser emitting device is fixed inside the second hanging ruler, and a light sensor and a shading cloth are provided inside the first hanging ruler, and the shading cloth is used to cover the probe of the light sensor.
[0007] Preferably, a weight is connected to the bottom of both the first hanging ruler and the second hanging ruler.
[0008] Preferably, there are a plurality of light sensors, the light sensors are arranged linearly, and the intervals between two adjacent light sensors are the same.
[0009] The utility model can achieve the following beneficial effects:
[0010] 1. The magnetic seat of the utility model can facilitate the installation of the measuring device at the bottom of the suspended object, and the first suspension ruler and the second suspension ruler droop naturally to reduce the error caused by manual handling.
[0011] 2. The laser emitting device is used in conjunction with a light sensor and a shading cloth to reduce the errors caused by manual reading.
[0012] 3. The weight is connected to the first hanging ruler or the second hanging ruler through a thin rope, and the weight is used to ensure that the first hanging ruler and the second hanging ruler are always in a vertical state. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0014] Figure 1 This is a schematic diagram of the structure of the levelness measuring device of the utility model;
[0015] Figure 2 This is a cross-sectional view of the first hanging ruler of the utility model;
[0016] Figure 3 This is the front view of the second hanging ruler of the utility model;
[0017] Figure 4 This is a schematic diagram of the use of the utility model.
[0018] In the figure: a level measuring device 2, a first hanging ruler 201, a second hanging ruler 202, a laser emitting device 203, a magnetic base 204, a light sensor 205, a shading cloth 206, a weight 207, and a suspended object 3. DETAILED DESCRIPTION
[0019] The preferred solution is Figures 1 to 4 As shown, a levelness measuring device includes a first hanging ruler 201 and a second hanging ruler 202. The first hanging ruler 201 and the second hanging ruler 202 cooperate with a laser emitting device 203 to measure the levelness of a suspended object; a magnetic seat 204 is hinged on the top of the first hanging ruler 201 and the second hanging ruler 202, and scale markings are provided on the first hanging ruler 201 and the second hanging ruler 202; a laser emitting device 203 is fixed on the second hanging ruler 202.
[0020] The magnetic seat 204 is provided with a magnet for adsorbing on the bottom of the suspended object. The magnetic seat 204 is a connection structure designed for materials such as steel and iron. If the material is not easily adsorbed by the magnet, a negative pressure adsorption device or a connecting clamp or other equivalent structure is used instead.
[0021] Preferably, the first hanging ruler 201 and the second hanging ruler 202 are rectangular frame structures, the laser emitting device 203 is fixed inside the second hanging ruler 202, and a light sensor 205 and a shading cloth 206 are provided inside the first hanging ruler 201, and the shading cloth 206 is used to cover the probe of the light sensor 205.
[0022] The shading cloth 206 can be made of black nylon cloth. When there is no laser irradiation, due to the shielding effect of the shading cloth 206, very little light will pass through the shading cloth and reach the light sensor 205. Under normal floodlight during the day, the light sensor 205 is zeroed. When the laser irradiates the shading cloth 206, due to the relatively large light intensity of the laser, the light sensor 205 will detect the position of the light spot irradiated by the laser on the shading cloth 206 compared with other parts without laser irradiation.
[0023] If the light sensor 205 and the light shielding cloth 206 are not used, the position of the laser point can be read directly by the naked eye.
[0024] The level measuring device 2 is used in the initial leveling of the suspended object. When the suspended object is leveled, the level measuring device 2 can be removed, and the data line in the level measuring device 2 can be passed through the top of the first suspension ruler 201 without affecting the verticality of the first suspension ruler 201. There are several light sensors 205, and the light sensors 205 are arranged linearly. The spacing between two adjacent light sensors 205 is the same. When a light sensor 205 detects light, it can be converted into the spacing. In addition, the function of the shading cloth 206 is to reduce the impact of other light on the sensor. The shading cloth 206 can also be selectively deleted according to the detection effect.
[0025] In this embodiment, one second hanging ruler 202 corresponds to three first hanging rulers 201, and the laser emitting device 203 on the second hanging ruler 202 is an infrared level meter for emitting horizontal light, which covers the entire horizontal plane. Accordingly, the number of the hanging rope length electric adjustment devices 1 is four, and the installation positions correspond to the first hanging ruler 201 and the second hanging ruler 202.
[0026] Preferably, a weight 207 is connected to the bottom of the first hanging ruler 201 and the second hanging ruler 202 .
[0027] The weight 207 is connected to the first hanging ruler 201 or the second hanging ruler 202 through a thin rope, and the weight 207 is used to ensure that the first hanging ruler 201 and the second hanging ruler 202 are always in a vertical state.
[0028] The working principle of this device is:
[0029] The level measuring device 2 is installed at the bottom of the suspended object, the first suspension ruler 201 and the second suspension ruler 202 are located on the same plane as the gravity center of the suspended object, and the first suspension ruler 201 and the second suspension ruler 202 are symmetrically distributed with respect to the gravity center of the suspended object; the laser emitting device 203 is an infrared level meter, which emits visible light on a horizontal plane; the laser emitting device 203 in the second suspension ruler 202 can also be externally installed outside the second suspension ruler 202; the number of the first suspension ruler 201 is one or more. When the light sensor 205 is not used, the reading of the first suspension ruler 201 can be read by naked eyes.
[0030] Leveling process:
[0031] Taking the height of the laser emitting device 203 as the reference height, the laser emitting device 203 is located at the "0" scale position of the second hanging ruler 202; when the suspended object is in a horizontal state, the light beam of the laser emitting device 203 will directly hit the "0" point position of the first hanging ruler 201. If the first hanging ruler 201 is higher than the second hanging ruler 202, the light beam of the laser emitting device 203 will directly hit the negative scale position of the first hanging ruler 201. If the first hanging ruler 201 is lower than the second hanging ruler 202, the light beam of the laser emitting device 203 will directly hit the positive scale position of the first hanging ruler 201.
[0032] Turn on the laser emitting device 203, and use the laser emitting device 203 to horizontally emit a laser beam onto the shading cloth 206. The light sensor 205 is used to detect the position of the light of the shading cloth 206, and the reading is L;
[0033] When L=0, it proves that the suspended object is in a horizontal state;
[0034] When L>0, it indicates that the object to be suspended is located at a lower end of the first suspension ruler 201;
[0035] When L<0, it indicates that the suspended object is located at a lower end of the second suspension ruler 202 .
[0036] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.
Claims
1. A level measuring device, Features: The invention comprises a first hanging ruler (201) and a second hanging ruler (202), wherein the first hanging ruler (201) and the second hanging ruler (202) cooperate with a laser emitting device (203) to measure the horizontality of a suspended object; the tops of the first hanging ruler (201) and the second hanging ruler (202) are both hingedly connected with a magnetic suction seat (204); the first hanging ruler (201) and the second hanging ruler (202) are both provided with scale marks; and the laser emitting device (203) is fixed on the second hanging ruler (202).
2. A levelness measuring device according to claim 1, Features: The first hanging ruler (201) and the second hanging ruler (202) are rectangular frame structures, the laser emitting device (203) is fixed inside the second hanging ruler (202), a light sensor (205) and a shading cloth (206) are provided inside the first hanging ruler (201), and the shading cloth (206) is used to cover a probe of the light sensor (205).
3. A levelness measuring device according to claim 1, Features: The bottoms of the first hanging ruler (201) and the second hanging ruler (202) are both connected to a weight (207).
4. A levelness measuring device according to claim 1, Features: The number of light sensors (205) is a plurality, and the light sensors (205) are arranged linearly, with the spacing between two adjacent light sensors (205) being the same.