CN108469214A - A kind of simple displacement meter of high-precision - Google Patents

Abstract

The present invention relates to a kind of simple displacement meters of high-precision, it includes percentage dial plate, gauge rod, gauge head, level meter, connecting rod and Magnetic gauge stand, the percentage dial plate is set to one end of gauge rod, the level meter is set on gauge rod, is arranged close to dial gauge, and the gauge head is set to the top of the other end of the gauge rod, the gauge rod is scalable setting in one end with the gauge head, and the Magnetic gauge stand is connect by the connecting rod with the gauge rod.The simple displacement meter of high-precision provided by the invention, it is simple in structure, it is equipped with level meter, keeps testing result more accurate, further, it is equipped with fixed block, can guarantee that gauge head not will produce sliding when measuring the contact surface of protrusion, when also ensuring measurement vertical direction displacement, gauge rod is vertical with the face where contact point, so that dial gauge is linked together with magnetic stand simultaneously, keeps operation more simple, improve work efficiency and provide more accurate data.

Description

A high-precision simple displacement meter

technical field

The invention relates to a high-precision simple displacement meter, which belongs to the technical field of measuring tools in civil construction.

Background technique

Facing the crowded streets in the city, the numerous buildings and structures and the dense pipelines above and below the ground, rational and effective use of urban underground space has become one of the indispensable ways to solve traffic pressure and beautify the urban environment in modern society. The use of underground space requires the use of pipe-curtain method for underground excavation construction, which has become a construction technology for building large-section underground spaces. The pipe curtain can be in various shapes, including semicircular, circular, door-shaped, mouth-shaped, etc. Therefore, in various experimental studies, it is necessary to monitor the displacement of the pipe structure, and the accuracy of displacement measurement will affect To the data that needs to be calculated and referenced in actual engineering, it has a great impact on the safety and reliability of construction.

The displacement meter can be used to measure the horizontal or vertical displacement of the components in various tests, but the current dial indicator used to measure the displacement has the following defects: (1) When the dial indicator measures the vertical displacement, it can only be judged by eyes Whether the measuring rod and the cutting surface of the measuring point are vertical, the measuring rod and the measuring point are difficult to be perpendicular to each other, which causes errors in the measurement data; (2) When the measuring head of the dial indicator is placed on the convex surface of the circular pipe curtain, it is easy to cause side (3) The dial indicator and the magnetic base are usually separated, which makes it easy to lose one of the two. It is often difficult to find when using it, and additional configuration is required, which increases the cost of measurement; (4) The connecting rod of the magnetic base of the traditional fixed dial indicator is heavy and inflexible in operation.

Contents of the invention

(1) Technical problems to be solved

In order to solve the above-mentioned problems in the prior art, the present invention provides a high-precision simple displacement meter, which can accurately measure displacement, and is flexible, simple and easy to use.

(2) Technical solution

In order to achieve the above object, the main technical solutions adopted in the present invention include:

A kind of high-precision simple displacement meter, it comprises percentage dial, measuring rod, measuring head, spirit level, connecting rod and magnetic base, described percentage dial is arranged on one end of measuring rod, and described level is arranged on measuring rod, Set close to the dial indicator, the measuring head is arranged on the top of the other end of the measuring rod, the measuring rod is retractable at the end with the measuring head, and the measuring head is connected to the dial dial The gauge needle, the stretching displacement of the probe is reflected in the displacement indicated by the gauge needle, and the magnetic watch base is connected with the measuring rod through the connecting rod.

As for the above-mentioned displacement gauge, preferably, there are two level gauges, which are respectively set on both sides of the dial dial on the measuring rod.

Further, the level is arranged perpendicular to the measuring rod, and is arranged on both sides or on the same side of the measuring rod.

As for the above-mentioned displacement gauge, preferably, the level gauge is in the shape of a long cylinder, and the inside is a liquid with air bubbles.

As for the above-mentioned displacement meter, preferably, the displacement meter further includes a fixed block, the fixed block is provided with a hole matched with the measuring head, and the fixed block and the measuring head are detachably fixed.

Further, internal threads are provided in the hole, and external threads matching the internal threads of the hole are provided on the outer surface of the probe.

As for the above-mentioned displacement gauge, preferably, the connecting rod is made of carbon steel.

As for the above-mentioned displacement gauge, preferably, the level gauge is movably mounted on the measuring rod.

For the above-mentioned displacement meter, preferably, a protrusion is provided on one side of the level, the protrusion is provided with an external thread, and the measuring rod is provided with an internal thread matching the external thread.

For the above-mentioned displacement gauge, preferably, a protrusion is provided on one side of the level, and a fixing interface that can fit and fix with the protrusion is provided on the measuring rod.

(3) Beneficial effects

The beneficial effects of the present invention are:

The high-precision simple displacement meter provided by the present invention has a simple structure and is equipped with a level meter to make the detection result more accurate. Furthermore, a fixed block is added to ensure that the measuring head will not slip when measuring the protruding contact surface. It also ensures that when measuring the displacement in the vertical direction, the measuring rod is perpendicular to the surface where the contact point is located. At the same time, the dial indicator is integrated with the magnetic support, which makes the operation easier, improves work efficiency and provides more accurate data. .

Description of drawings

Fig. 1 is the structural representation of a preferred embodiment of the present invention;

Figure 2 is a schematic diagram of the structure after the probe and the fixed block are installed;

Fig. 3 is a schematic structural diagram of another preferred embodiment of the present invention.

[Description of Reference Signs]

1: Dial;

2: Measuring rod;

3: Measuring head;

4: spirit level;

5: connecting rod;

6: Magnetic base;

7: Fixed block.

Detailed ways

In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

Example 1

A kind of high-precision simple displacement meter, as shown in Figure 1, it comprises percentage dial 1, measuring rod 2, measuring head 3, spirit level 4, connecting rod 5 and magnetic table base 6, and percentage dial 1 is fixed on measuring rod 2 One end of the measuring rod 2, the level 4 is set on the measuring rod 2, and it is set close to the dial 1, and the measuring head 3 is set on the top of the other end of the measuring rod 2. 2. The end with the probe 3 is retractable. The needle in the dial dial 1 moves up and down with the probe 3 to measure the displacement of the probe, that is, the displacement of the measuring rod. The magnetic base 6 is connected to The rod 5 is connected with the measuring rod 2, and the magnetic base 6 provides a magnetic field environment for the dial 1 and the measuring head 3.

The level meter 4 can be set as a cylinder, and the inside is a liquid with air bubbles. The level meter 4 and the measuring rod 2 are arranged vertically. The contact surface is vertical, which can ensure the accuracy of the test results.

The displacement meter also includes a fixed block, as shown in Figure 2, the fixed block 8 is square, the center of the fixed block 8 is provided with a hole matching the measuring head 3, the hole is provided with an internal thread, and the upper surface of the measuring head is provided with a The internal thread in the hole matches the external thread. In this way, the fixed block and the measuring head can be detachably fixed. When the convex surface needs to be measured, the fixed block is connected with the measuring bolt. The measuring head is not easy to slip, which can ensure the measurement results are profitable, and the operation is simple. It can be unscrewed and removed Fixed block. The fixed block can be made of iron material.

Connection The percentage dial and the magnetic watch base are integrated through a connecting rod, which solves the problem that the magnetic watch base is easy to lose. The connecting rod connecting the percentage dial and the magnetic base is made of carbon steel, which can withstand the test of free bending and is more flexible in operation. When in use, turn the handle of the magnetic table base to make it generate strong magnetic adsorption on the surface of the iron piece, then align the measuring head at the lower end of the measuring rod with the contact surface that needs to detect displacement, and measure. The use of the level improves the accuracy.

Example 2

Present embodiment is on the basis of embodiment 1, and as shown in Figure 2, level meter 4 is set as two, on measuring rod 2, the both sides of percentage dial 1 is respectively provided with level meter 4, and level meter 4 is all connected with measuring rod 2 vertical, can be set on both sides of measuring rod 4. Can also be set on the same side. When the displacement meter measures the vertical downward displacement of the contact surface of the lower part of the structure, it is necessary to turn the displacement meter upside down and put the measuring head up against the structure. At this time, observe the level near the measuring head. When the displacement meter measures the displacement of the upper contact surface of the structure, put the side head down against the contact surface, and look at the level far away from the measuring head, that is, the level on the dial dial. This is convenient for observation and can fully ensure that the measuring rod and measuring The point cut plane is vertical to ensure accurate measurement results.

According to needs, the level meter is set to be movably installed on the measuring rod. Specifically, a protrusion is provided on one end of the level meter. The protrusion can be provided with an external thread, and the measuring rod is provided with an internal thread matching the external thread. . The setting of the internal thread can be set on the measuring rod itself, or a fixed interface can be fixed on the measuring rod, and the internal thread and the raised external thread are fixed in the fixed interface.

It can also be set that there is no screw thread on the protrusion, and it is directly engaged and fixed with the fixed interface.

The fixed block and the measuring head are set to be clampable.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms. Any person skilled in the art can use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. . However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. a kind of simple displacement meter of high-precision, which is characterized in that it includes：Percentage dial plate, gauge rod, gauge head, level meter, connecting rod And Magnetic gauge stand, the percentage dial plate are set to one end of gauge rod, the level meter is set on gauge rod, is arranged close to dial gauge, institute Gauge head is stated set on the top of the other end of the gauge rod, the gauge rod is scalable setting, institute in one end with the gauge head The indicator that gauge head connects the percentage dial plate is stated, the flexible displacement of the gauge head is embodied in the displacement indicated by indicator, described Magnetic gauge stand is connect by the connecting rod with the gauge rod.

2. the simple displacement meter of high-precision as described in claim 1, which is characterized in that there are two the level meter is set, described The both sides setting of the percentage dial plate is located on gauge rod.

3. the simple displacement meter of high-precision as claimed in claim 1 or 2, which is characterized in that the level meter is perpendicular to the amount Bar is arranged, and positioned at the both sides of the gauge rod or the same side setting.

4. the simple displacement meter of high-precision as claimed in any one of claims 1-3, which is characterized in that the level meter is oval Tubular, inside is with bladdery liquid.

5. the simple displacement meter of high-precision as described in claim 1, which is characterized in that the displacement meter further includes a fixed block, The fixed block, which is equipped with, to be detachably fixed with the matched hole of the gauge head, the fixed block with gauge head.

6. the simple displacement meter of high-precision as claimed in claim 5, which is characterized in that be equipped with internal thread, the survey in the hole The outer surface of head is equipped with the matched external screw thread of hole internal thread.

7. the simple displacement meter of high-precision as described in claim 1, which is characterized in that the connecting rod is carbon steel material system Make.

8. the simple displacement meter of high-precision as described in any one of claim 1-7, which is characterized in that the level meter is that can live Dynamic property is mounted on the gauge rod.

9. the simple displacement meter of high-precision as claimed in claim 8, which is characterized in that be equipped in the side of the level meter convex It rises, the protrusion is equipped with external screw thread, and the gauge rod is equipped with and the matched internal thread of external screw thread.

10. the simple displacement meter of high-precision as claimed in claim 8, which is characterized in that be equipped in the side of the level meter convex It rises, is equipped on the gauge rod and matches the fixed interface that can be fitted and fixed with the protrusion.