CN205228314U - A percentage table for improving measurement accuracy - Google Patents

Abstract

The utility model discloses a dial indicator for improving measurement accuracy. The main body of the dial indicator is provided with a dial on the back, a rotating shaft is arranged in the center of the dial, a connecting rod is installed on the rotating shaft, and a circular level is arranged at one end of the connecting rod. The bubble has an angle pointer at the other end. Adjust the connecting rod to make the angle pointer point to the corresponding scale position of the dial, and adjust the main body of the dial indicator so that the bubble of the circular level bubble is placed in the horizontal calibration circle. At this time, the connecting rod is in the vertical plane At this time, the angle between the connecting rod and the measuring rod is the angle between the measured section and the horizontal plane. This device can realize that the measuring rod is perpendicular to any measuring section and achieve the purpose of improving the measurement accuracy. The structure of the utility model Simple, easy to use, suitable for the measurement of various angle positions.

Description

A Dial Indicator for Improving Measurement Accuracy

technical field

The utility model relates to a measuring device, in particular to a dial indicator for improving measuring accuracy.

Background technique

The dial indicator is an indicating measuring tool with relatively high measurement accuracy. In the field of civil engineering, dial indicators are often used to measure the deformation of structures.

The existing dial gauge measurement is generally used together with the dial gauge bracket, and the measuring rod is directly placed on the section to be measured, and then the measured value is read. However, there are usually the following problems during use:

When measuring a plane, visual inspection alone cannot ensure that the measuring rod of the dial indicator is perpendicular to the measuring plane, resulting in inaccurate measurement results. Especially in the model test, the deformation of the structure itself is small, and the measurement error will have a great influence.

Utility model content

The purpose of the utility model is to provide a dial indicator for improving measurement accuracy, so as to solve the measurement error problem caused by the inability to ensure that the measuring rod is perpendicular to the measuring plane when the existing dial indicator is measured.

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

A dial indicator for improving measurement accuracy, comprising a dial indicator main body with a dial on the back, a rotating shaft at the center of the dial, a connecting rod installed on the rotating shaft, a circular level bubble at one end of the connecting rod, and a circular level bubble at the other end. Angled pointer.

Further, the dial is fixed on the main body of the dial indicator.

Further, the connecting rod can rotate around the rotating shaft.

Further, a fixed nut is provided on the rotating shaft.

Further, the main body of the dial indicator is provided with a measuring rod, and the top of the measuring rod is provided with a measuring head.

Further, the main body of the dial gauge is fixed on the bracket.

Further, the bracket is formed by hinges of two struts.

Further, one end of the bracket is fixed with a measuring rod, and the other end is fixed with a magnetic base.

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model is a dial indicator for improving measurement accuracy. The main body of the dial indicator is provided with a dial on the back, a rotating shaft is arranged in the center of the dial, a connecting rod is installed on the rotating shaft, and a circular level bubble is arranged at one end of the connecting rod. The other end is provided with an angle pointer. By adjusting the connecting rod so that the angle pointer points to the corresponding scale position of the dial, adjust the main body of the dial indicator so that the bubble of the circular level bubble is placed in the horizontal calibration circle. At this time, the connecting rod is in the vertical plane. At this time, the angle between the connecting rod and the measuring rod is the angle between the measured section and the horizontal plane. This device can realize that the measuring rod is perpendicular to any measuring section and achieve the purpose of improving the measurement accuracy. The utility model has a simple structure. Easy to use, suitable for measurement of various angle positions.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Figure 2 is the left side view of Figure 1.

Fig. 3 is a schematic diagram of the assembly structure of the bracket of the present invention.

Figure 4 is a schematic diagram of the structure of a circular level bubble.

Among them, 1. circular level bubble; 2. rotating shaft; 3. connecting rod; 4. main body of dial indicator; 5. dial; 6. angle pointer; 7. measuring rod; 8. measuring head; 1-1. tray; 1-2. Bubble; 1-3. Horizontal calibration ring; 12-1. Bracket; 12-2. Magnetic base.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in Figure 1-3, a kind of dial indicator for improving measurement accuracy comprises dial indicator main body 4, is provided with dial 5 on the back of dial indicator main body 4, is engraved with 360 scales on dial 5, scale The disc 5 is fixed on the main body 4 of the dial indicator, and the center of the dial 5 is equipped with a connecting rod 3 through the rotating shaft 2. One end of the connecting rod 3 is provided with a circular level bubble 1, and the other end is provided with an angle pointer 6. The angle pointer on the connecting rod 3 6 refers to the dial 5, the connecting rod 3 can rotate around the rotating shaft 2, the rotating shaft 2 is provided with a fixed nut 9, and the connecting rod 3 is fixed by the elastic nut to prevent the connecting rod 3 from rotating during measurement; There is a measuring rod 7, the top of the measuring rod 7 is provided with a measuring head 8, and the main body of the dial indicator 4 is fixed on the bracket 12-1, wherein the bracket 12-1 is hinged by two rods, and one end of the bracket 12-1 The measuring rod 7 is fixed, and the other end is fixed with a magnetic base 12-2. As shown in Figure 4, the circular level bubble 1 includes a tray 1-1 fixedly connected to the connecting rod 3, a horizontal calibration ring is provided on the tray 1-1, and a freely movable bubble 1-2 is inside the tray 1-1.

Below in conjunction with accompanying drawing, structural principle of the present utility model and operation steps are further described:

When measuring the deformation in the vertical direction, place the circular level bubble 1 on the top, and the corresponding angle pointer 6 points at the 0 scale, then adjust to make the bubble center, and fix the connecting rod 3 through the fixing nut 9, then the measuring rod is at this time If it is vertical, it can measure the displacement in the vertical direction; when measuring the deformation in the horizontal direction, rotate the shaft 90 degrees to correspond to the pointer at the 90 scale, adjust to make the bubble center, then the measuring rod is horizontal at this time, and the displacement in the horizontal direction can be measured; When measuring the deformation of the oblique section, it is enough to rotate the shaft by the corresponding angle. The utility model is particularly suitable for the measurement of various angle positions.

Claims (8)

1. one kind for improving the dial gauge of measuring accuracy, it is characterized in that, comprise the dial gauge main body (4) that the back side is provided with index dial (5), index dial (5) center is provided with rotating shaft (2), rotating shaft (2) is provided with connecting link (3), connecting link (3) one end is provided with round leveling bubble (1), and the other end is provided with angle indicator (6).

2. a kind of dial gauge for improving measuring accuracy according to claim 1, is characterized in that, index dial (5) is fixed in dial gauge main body (4).

3. a kind of dial gauge for improving measuring accuracy according to claim 1, is characterized in that, connecting link (3) can (2) rotate around the shaft.

4. a kind of dial gauge for improving measuring accuracy according to claim 1, is characterized in that, rotating shaft (2) is provided with hold-doun nut (9).

5. a kind of dial gauge for improving measuring accuracy according to claim 1, is characterized in that, dial gauge main body (4) is provided with sounding rod (7), and sounding rod (7) top is provided with measuring head (8).

6. a kind of dial gauge for improving measuring accuracy according to claim 1, is characterized in that, dial gauge main body (4) is fixed on support (12-1).

7. a kind of dial gauge for improving measuring accuracy according to claim 6, is characterized in that, support (12-1) forms by two poles are hinged.

8. a kind of dial gauge for improving measuring accuracy according to claim 7, is characterized in that, one end fixation measuring bar (7) of support (12-1), the other end is fixed with magnetic bases (12-2).