CN211477098U

CN211477098U - Laser type float hydrostatic level

Info

Publication number: CN211477098U
Application number: CN202020303851.4U
Authority: CN
Inventors: 周荣华; 徐忠远; 顾厚玮
Original assignee: Zhiwu Yunxiang Nanjing Information Technology Co Ltd
Current assignee: Zhiwu Yunxiang Nanjing Information Technology Co Ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-09-11
Anticipated expiration: 2030-03-12

Abstract

The utility model discloses a laser type float hydrostatic level, which comprises a float hydrostatic level main body and a laser distance measuring sensor; the laser ranging sensor is arranged at the top of the float static level main body; the float static level main body comprises a tubular liquid container, an upper connecting piece, a lower connecting piece and a mounting support; the tubular liquid container is positioned between the upper connecting piece and the lower connecting piece, and a floater floating on the liquid surface is arranged in the tubular liquid container; the upper connecting piece is provided with a laser ranging hole for measuring a displacement value by laser through a measuring floater, and the upper surface of the floater is adhered with a light reflecting paste for reflecting the laser; the mounting support is arranged on the lower connecting piece and used for supporting and mounting the level, and a conduit device communicated with the liquid containers of the adjacent levels is arranged in the mounting support. The utility model discloses a real non-contact measurement has greatly increased the resolving power of sensor and the available range of surveyor's level, has very good application prospect.

Description

Laser type float hydrostatic level

Technical Field

The utility model relates to a laser formula float hydrostatic level.

Background

At present, the types of the static level gauges on the market are various, the names of the static level gauges are various, and the static level gauges can be divided into two types of measuring liquid level height and measuring pressure difference in the measurement principle. The float-type hydrostatic level is used for measuring the relative settlement of a measured point and a reference point, and the working principle of the float-type hydrostatic level is based on the principle of a communicating vessel, namely the liquid level in each sensor connected with a liquid through pipe under the action of gravity is kept consistent, and the principle is that the liquid level value is measured by various distance measuring equipment in the measuring sensor, so that the settlement of the monitoring point relative to the reference point is calculated.

The existing float type static level mainly comprises two types of a magnetostrictive floating ball static level and a vibrating string float type static level. The magnetostrictive floating ball static level gauge has high resolution which can reach 0.01-0.001 mm. However, this type of hydrostatic level is not a non-contact measurement in a strict sense, the friction force between the floating ball and the magnetostrictive measuring rod is large when the hydrostatic level is used, and the non-verticality and the friction force of the whole sensor jointly cause that the floating ball cannot move freely on the magnetostrictive measuring rod when the hydrostatic level is installed on site, so that the actual resolution of the magnetostrictive floating ball hydrostatic level is about 0.1mm under the common condition and is far smaller than the design resolution. The resolution of the vibrating wire float type hydrostatic level is low and is only one-third of the full measuring range, and when the measuring range of the vibrating wire float type hydrostatic level is more than 20cm, the resolution is inferior to 0.05 mm. Therefore, a hydrostatic level with high resolution is needed, and the requirement of high resolution in a wide-range settlement measurement can be met.

SUMMERY OF THE UTILITY MODEL

To foretell not enough, the utility model provides a laser formula float hydrostatic level when producing the difference in height, measures the displacement value of float in measured point and the reference point hydrostatic level respectively through laser rangefinder sensor to obtain the settlement volume of measured point for the reference point. The specific technical scheme is as follows:

a laser type float hydrostatic level comprises a float hydrostatic level body and a laser ranging sensor; the laser ranging sensor is arranged at the top of the float static level main body; the float static level main body comprises a tubular liquid container, an upper connecting piece, a lower connecting piece and a mounting support; the tubular liquid container is positioned between the upper connecting piece and the lower connecting piece, and a floater floating on the liquid surface is arranged in the tubular liquid container; the upper connecting piece is provided with a laser ranging hole for measuring a displacement value by laser through a measuring floater, and the upper surface of the floater is adhered with a light reflecting paste for reflecting the laser; the mounting support is arranged on the lower connecting piece and used for supporting and mounting the level, and a conduit device communicated with the liquid containers of the adjacent levels is arranged in the mounting support.

Preferably, the tubular liquid container is an organic glass tube, and the solution in the tubular liquid container is anti-freezing solution.

Preferably, the height of the solution in the tubular liquid container is half of the height of the liquid container.

In the laser type float hydrostatic level, the tubular liquid container and the upper and lower connecting pieces are connected in a threaded manner.

In the laser type float hydrostatic level, the float is in a cylindrical shape with a slightly flat height, and a median line of the height of the float is just positioned on the surface of the solution.

The laser type float hydrostatic level is characterized in that: the laser ranging hole in the upper connecting piece is located in the center of the upper connecting piece, and the light reflecting paste on the floater is also located in the center of the floater.

Preferably, in the laser float hydrostatic level, the diameter of the laser distance measuring hole in the upper connecting piece is 20 mm.

According to the laser type float hydrostatic level, the mounting support is fixedly mounted on the lower connecting piece through the screw and the nut.

Preferably, the screw is a harness screw.

According to the laser type float hydrostatic level, the threaded through hole is formed in the lower connecting piece, the guide pipe device comprises the liquid guide tee joint and the liquid guide pipe, one end of the liquid guide tee joint is connected with the liquid container through the threaded through hole, and the other two ends of the liquid guide tee joint are connected with the liquid guide tee joint of the adjacent level through the liquid guide pipe.

The utility model has the advantages that:

the utility model discloses select high accuracy laser range finder for use as principal sensor, realized the most genuine non-contact measurement, eliminated magnetostriction hydrostatic level floater and the great problem of measuring staff frictional force to greatly increased the resolving power of sensor, can make the actual resolution ratio of hydrostatic level maintain at 0.01mm, also increased the usable range of hydrostatic level simultaneously, had very good application prospect.

Drawings

Fig. 1 is an implementation schematic diagram of the laser type float hydrostatic level of the present invention.

In the figure: 1. a float hydrostatic level body; 2. a laser ranging sensor; 3 a liquid container; 4. an upper connecting member; 5. a lower connecting member; 6. mounting a support; 7. a float; 9. a solution; 10. reflecting light; 11. a screw; 12. a nut; 14. a liquid guiding tee joint; 15. a liquid guide and press pipe.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the embodiments and the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The specific embodiment is as follows:

a laser type float hydrostatic level is shown in figure 1 and comprises a float hydrostatic level body 1 and a laser distance measuring sensor 2; the laser ranging sensor 2 is a high-precision laser ranging sensor, can be purchased in the market, such as high-precision laser ranging sensors CD33-120N-422 and the like, and is arranged at the top of the float hydrostatic level main body 1; the float hydrostatic level main body 1 comprises a tubular liquid container 3, an upper connecting piece 4, a lower connecting piece 5 and a mounting support 6; the tubular liquid container 3 is positioned between the upper connecting piece 4 and the lower connecting piece 5, and a floater 7 floating on the liquid surface is arranged in the tubular liquid container; the laser ranging device is characterized in that a laser ranging hole for laser to pass through is formed in the upper connecting piece 4, a light reflecting sticker 10 for reflecting laser is attached to the floater 7, the mounting support 6 is mounted on the lower connecting piece 5 and used for supporting and mounting a level, and a conduit device communicated with the adjacent liquid container 3 of the level is arranged in the mounting support.

The laser emitted by the laser ranging sensor 2 is reflected back after irradiating the reflective sticker 10 of the floater 7 through the laser ranging hole and is transmitted to the computer control end, the displacement value of the floater 7 of the monitoring point level gauge relative to the floater 7 of the reference point level gauge is calculated and calculated, and the settlement amount of the monitoring point relative to the reference point is determined, so that the non-contact type measurement in the true sense is realized, the problem of large friction force between the floater of the magnetostrictive hydrostatic level gauge and the measuring rod is solved, the resolution of the sensor is greatly increased, the actual resolution of the hydrostatic level gauge can be maintained at 0.01mm, meanwhile, the available range of the hydrostatic level gauge is also increased, and the application prospect is very good.

In the laser type float hydrostatic level provided by the embodiment, the tubular liquid container 3 is an organic glass tube, and the connection modes between the tubular liquid container and the upper and lower connecting pieces 4 and 5 are threaded connection; the solution 9 in the liquid container 3 is an antifreeze, and the height of the solution 9 is half of the height of the liquid container 3. The floater 7 floating on the surface of the solution 9 is a cylinder with a slightly flat height, the volume and the density of the floater 7 are calculated to enable the floater to float on the surface of the solution 9 when the floater 7 is produced and processed, and the height center line of the floater is just near the surface of the solution.

In order to make the measurement more accurate, the laser type float hydrostatic level in the embodiment has the advantages that the laser distance measuring hole in the upper connecting piece 4 is positioned in the middle of the upper connecting piece 4, the diameter of the laser distance measuring hole is 20mm, and the laser can smoothly pass through the laser distance measuring hole; the light reflecting sticker 10 attached to the upper surface of the floater 7 is also positioned in the middle of the floater 7, so that the laser is reflected back.

In addition, in the embodiment, the mounting seat 6 is mounted and fixed on the lower connecting member 5 through a screw 11 and a nut 12, and the screw 11 is a harness screw, so that the height and the inclination of the liquid container 3 can be conveniently adjusted. The lower connecting piece 5 is provided with a threaded through hole, the conduit device comprises a liquid guide tee joint 14 and a liquid guide and pressure liquid pipe 15, one end of the liquid guide tee joint 14 is connected with the liquid container 3 through the threaded through hole, and the other two ends of the liquid guide tee joint are connected with the liquid guide tee joint 14 of the adjacent level through the liquid guide and pressure liquid pipe 15 to form a liquid communicating vessel so as to measure the settlement heights of a plurality of monitors at the same time.

After a plurality of laser type float hydrostatic levels are installed, when a high level difference is generated, the laser distance measuring sensors 2 respectively measure displacement values L1-Ln between the laser heads and the light reflecting pastes 7, and then respectively calculate displacement change values delta L1-delta Ln, namely delta Ln-delta L1 (delta L1 is a float displacement change value of the hydrostatic level at the reference point), so that the relative settlement value of the n number monitoring points and the reference point can be obtained.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A laser type float hydrostatic level is characterized in that: the laser static level comprises a floater static level main body (1) and a laser ranging sensor (2); the laser ranging sensor (2) is arranged at the top of the float hydrostatic level main body (1); the float hydrostatic level main body (1) comprises a tubular liquid container (3), an upper connecting piece (4), a lower connecting piece (5) and a mounting support (6); the tubular liquid container (3) is positioned between the upper connecting piece (4) and the lower connecting piece (5), and a floater (7) floating on the liquid surface is arranged in the tubular liquid container; the upper connecting piece (4) is provided with a laser ranging hole for measuring a displacement value through a measuring floater (7) by laser, and the upper surface of the floater (7) is attached with a reflecting sticker (10) for reflecting the laser; the mounting support (6) is mounted on the lower connecting piece (5) and used for supporting and mounting the level, and a conduit device communicated with the liquid containers (3) of the adjacent levels is arranged in the mounting support.

2. The laser-based float hydrostatic level of claim 1, wherein: the tubular liquid container (3) is an organic glass tube, and the solution (9) in the tubular liquid container is anti-freezing solution.

3. A laser-type float hydrostatic level of claim 1 or 2, wherein: the height of the solution (9) in the liquid container (3) is half of the height of the liquid container (3).

4. A laser-type float hydrostatic level of claim 1 or 2, wherein: the tubular liquid container (3) is in threaded connection with the upper and lower connecting pieces (4, 5).

5. The laser-based float hydrostatic level of claim 1, wherein: the floater (7) is in a cylindrical shape with a slightly flat height, and the median line of the height of the floater is just positioned on the surface of the solution (9).

6. The laser-type float hydrostatic level of claim 1 or 5, wherein: the laser ranging hole in the upper connecting piece (4) is located in the center of the upper connecting piece (4), and the light reflecting sticker (10) on the floater (7) is also located in the center of the floater (7).

7. The laser-based float hydrostatic level of claim 6, wherein: the diameter of a laser ranging hole in the upper connecting piece (4) is 20 mm.

8. The laser-based float hydrostatic level of claim 1, wherein: the mounting support (6) is fixedly mounted on the lower connecting piece (5) through a screw rod (11) and a nut (12).

9. The laser-based float hydrostatic level of claim 8, wherein: the screw (11) is a harness cord screw.

10. The laser-based float hydrostatic level of claim 1, wherein: the lower connecting piece (5) is provided with a threaded through hole, the guide pipe device comprises a liquid guide tee joint (14) and a liquid guide and pressure pipe (15), one end of the liquid guide tee joint (14) is connected with the liquid container (3) through the threaded through hole, and the other two ends of the liquid guide tee joint are connected with the liquid guide tee joint (14) of the adjacent level through the liquid guide and pressure pipe (15).