CN209820456U - Sedimentation amount direct-reading mechanism of hydrostatic level - Google Patents

Abstract

The utility model belongs to a measuring device, in particular to a settlement direct reading mechanism of a static level. It includes a floating ball arranged in the liquid storage tank of the static level, a connecting rod that is longitudinally arranged on the top of the floating ball and whose upper end extends to the outside through the upper opening of the liquid storage tank; the top of the connecting rod is provided with a laser emitter, and the laser A concave lens is arranged on the outgoing light path of the emitter, and a scale is arranged on the refracted light path of the concave lens, and the scale on the scale corresponds to the refracted light of the concave lens. The utility model effectively solves the problems in the prior art that the accuracy of reading is greatly affected by human factors of the reader and the measurement accuracy of the level is low, and has the advantages of compact structure and layout, effectively avoiding reading errors, and improving reading accuracy.

Description

Subsidence Direct Reading Mechanism of Static Level

technical field

The utility model belongs to a measuring device, in particular to a settlement direct reading mechanism of a static level.

Background technique

The static level is mainly used in the linear settlement and vertical displacement measurement of the position to be measured, and is widely used in projects such as tunnels and bridges. The static level mainly uses the principle of the connecting device to make the liquid level at different positions on the same level. In the existing products, the sedimentation amount cannot be visually observed or is difficult to observe because the sedimentation amount is not obvious.

The patent document with the publication number CN102384740A discloses a self-leveling direct-reading static level, which includes a container, a float, a hanging scale, a hanging wire and a floating scale sleeve, the container is filled with liquid, and the lower part is provided with a water inlet And the water outlet, the upper part is provided with a cup cover, and the hanging scale is hung under the container cover through a hanging wire. Two sets of scales are arranged on both sides of the hanging scale, and a counterweight is provided at the bottom. The floating scale sleeve is a hollow sleeve. A floating scale is installed vertically inside the hollow pipe sleeve. The floating scale sleeve covers the hanging scale, and the float arranged at the bottom makes the floating scale sleeve float on the liquid surface. After the container is placed on the surface to be measured during use, the floating scale can rise and fall freely with the change of the water level. When the water level in the container changes when a certain monitoring point is subsidence and deformed, the floating scale tube sleeve rises and falls accordingly, so as to observe and measure the settlement height . The accuracy of reading in the above-mentioned prior art is greatly affected by the human factors of the reader, which leads to a reduction in the measurement accuracy of the level instrument.

Utility model content

The purpose of the utility model is to provide a settlement direct reading mechanism of a static level with simple structure, convenient observation and high reading accuracy.

Overall technical conception of the present utility model is:

The settlement direct-reading mechanism of the static level includes a floating ball arranged in the liquid storage tank of the static level, and a connecting rod longitudinally arranged on the top of the floating ball and whose upper end extends to the outside through the upper opening of the liquid storage tank; said A laser emitter is arranged on the top of the connecting rod, a concave lens is arranged on the outgoing light path of the laser emitter, and a scale is arranged on the refracted light path of the concave lens, and the scale on the scale corresponds to the refracted light of the concave lens.

Due to the refraction relationship of the concave lens, the divergence of the refracted light from its center to the edge gradually increases. In order to accurately reflect the actual distance measured, the scale interval of the scale gradually increases from zero to both sides under the requirements of the above conditions. distributed.

Concrete technical design of the present utility model also has:

The preferred technical solution is that the lower end of the concave lens is provided with a longitudinal adjustment mechanism. The lower end of the scale is provided with a longitudinal adjustment mechanism.

The main function of the longitudinal adjustment mechanism is to place the center of the concave lens and the zero point of the scale on the exit light path of the laser emitter before measurement, so as to facilitate the quick data reading. In order to facilitate the installation of the concave lens and the scale, and facilitate the structural design more Compact, the preferred technical solution is that the outer wall of the liquid storage tank is fixed with a workbench, and the longitudinal adjustment mechanism includes a mounting rod whose top is connected to the bottom of the concave lens, and an adjusting rod connected to the bottom of the scale, and the mounting rod and the adjusting rod are threaded. And fixed on the workbench by nuts.

In order to facilitate the installation and replacement of the concave lens, and at the same time further protect the concave lens, the preferred technical solution is that the concave lens is assembled in the mounting frame, the mounting frame is mounted on the worktable through the mounting rod, and the scale is mounted on the working table through the adjusting rod superior.

Applicants need to explain:

In the description of the present utility model, the orientation or positional relationship indicated by the terms "upper end", "outer wall", and "upper surface" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of simplifying the description of the present utility model. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention.

The technical progress achieved by the utility model is:

1. The utility model adopts the laser transmitter as the signal source of the height signal change. Since the laser beam is parallel light and the scattering area is small, the accuracy of the optical signal transmission process and the reading of the scale is effectively guaranteed.

2. The principle of light divergence after refraction by concave lens is adopted, and the laser beam reflecting the height change of the floating ball is accurately and clearly displayed on the scale after refraction, which effectively avoids reading errors while ensuring the accuracy of readings. Improved reading accuracy of readings.

3. Use the adjustment rod to install the scale on the workbench, and use the installation rod to assemble the concave lens on the workbench. The vertical height of the scale and the concave lens can be flexibly adjusted and locked, effectively ensuring the zero point of the scale before measurement and the center of the concave lens. The adjustment of the reference position is convenient for fast reading of data.

4. The concave lens is fixed by the mounting bracket and assembled on the workbench through the mounting rod, which meets the installation stability and facilitates assembly.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

The reference signs in the accompanying drawings are as follows:

1. Laser transmitter; 2. Mounting frame; 3. Scale; 4. Workbench; 5. Adjusting rod; 6. Liquid storage tank; 7. Connecting rod; 8. Mounting rod; 9. Concave lens.

Detailed ways

The utility model is further described below in conjunction with the embodiments, but it should not be understood as a limitation of the utility model. The protection scope of the utility model is based on the contents recorded in the claims, and any equivalent technical means made according to the specification is replaced. All do not depart from the protection scope of the present utility model.

The overall structure of this embodiment is as shown in the figure, which includes a floating ball arranged in the liquid storage tank 6 of the static level, a connecting rod 7 that is longitudinally arranged on the top of the floating ball and whose upper end extends to the outside through the upper opening of the liquid storage tank 6 ; The top of the connecting rod 7 is provided with a laser emitter 1, the outgoing light path of the laser emitter 1 is provided with a concave lens 9, and the refracted light path of the concave lens 9 is provided with a scale 3, and the scale on the scale 3 and the concave lens The refracted light of 9 is corresponding, and the lower end of concave lens 9 and scale 3 is provided with longitudinal adjustment mechanism.

The outer wall of the liquid storage tank 6 is fixed with a workbench 4, and the longitudinal adjustment mechanism includes a mounting rod 8 whose top is connected to the bottom of the concave lens 9, and an adjusting rod 5 connected to the bottom of the scale 3, and the mounting rod 8 and the adjusting rod 5 are threaded. And be fixed on the workbench 4 by nut.

The concave lens 9 is assembled in the mounting frame 2, the mounting frame 2 is fixedly mounted on the workbench 4 through the mounting rod 8, and the scale 3 is fixedly mounted on the workbench 4 through the adjusting rod 5.

The working principle of this embodiment is as follows:

During use, adjust the center of the concave lens 9 and the zero point of the scale 3 to the exit light path of the laser transmitter 1 by adjusting the installation rod 8 and the adjustment rod 5, and lock the nut; When the height of the ball changes, due to the refraction effect of the concave lens, the reading can be read accurately and conveniently on the scale.

Claims (5)

1. The settlement direct-reading mechanism of the hydrostatic level comprises a floating ball arranged in a liquid storage tank (6) of the hydrostatic level, and a connecting rod (7) which is longitudinally arranged at the top of the floating ball, and the upper end of the connecting rod extends to the outside of the floating ball through an opening at the upper end of the liquid storage tank (6); the laser device is characterized in that a laser emitter (1) is arranged at the top end of the connecting rod (7), a concave lens (9) is arranged on an emergent light path of the laser emitter (1), a graduated scale (3) is arranged on a refracted light path of the concave lens (9), and scales on the graduated scale (3) correspond to refracted light of the concave lens (9).

2. A settlement direct-reading mechanism for a hydrostatic level according to claim 1 wherein the lower end of the concave lens (9) is provided with a longitudinal adjustment mechanism.

3. A settlement direct-reading mechanism for a hydrostatic level according to claim 1 wherein the lower end of the scale (3) is provided with a longitudinal adjustment mechanism.

4. A settlement direct-reading mechanism of a hydrostatic level according to any one of claims 2 or 3, characterized in that the outer wall of the liquid storage tank (6) is fixed with a workbench (4), the longitudinal adjusting mechanism comprises a mounting rod (8) with a top end connected below the concave lens (9), and an adjusting rod (5) connected below the graduated scale (3), wherein the mounting rod (8) and the adjusting rod (5) are assembled by screw threads and fixed on the workbench (4) by nuts.

5. A settlement direct-reading mechanism for a hydrostatic level according to claim 4 wherein the concave lens (9) is mounted in a mounting bracket (2), the mounting bracket (2) being mounted on the table (4) by means of a mounting bar (8).