CN201522255U - Digital display caliper gauge - Google Patents

Abstract

The utility model discloses a digital display callipers rule, including two measuring arms and capacitive grating sensor, processing unit and display, wherein: the main grid of the capacitive grid sensor is arranged on one measuring arm, and the auxiliary grid of the capacitive grid sensor is arranged on the other measuring arm; the processing unit is used for calculating and outputting an opening distance result between the two measuring arms according to the detection signal output by the capacitive grating sensor; and the display displays the opening distance result between the two measuring arms. The utility model discloses can show to measure and open the distance between the arm with digital form, its reading is convenient, accurate, save time, simple structure, and the overall arrangement is compact, and the cost is lower, and application scope is wider.

Description

Digital graphics

technical field

The utility model relates to an angle or length measuring device, in particular to a digital caliper.

Background technique

In order to know the size of deep holes, grooves or special-shaped parts, calipers are often used for measurement. When measuring, the ends of the two measuring arms of the caliper stick to the part of the workpiece to be measured, and the distance between the ends of the two measuring arms is the size of the part of the workpiece to be measured. Ordinary calipers cannot directly read the distance that the caliper measuring arm opens, which is extremely inconvenient to use.

Utility model content

In view of this, the utility model provides a digital caliper with simple structure and compact layout, which can display the opening distance between two measuring arms in digital form, and the reading is convenient, accurate and time-saving.

In order to solve the above technical problems, the digital caliper of the present utility model includes two measuring arms, a capacitive sensor, a processing unit and a display, wherein:

In the capacitive sensor, the main grid is installed on one measuring arm, and the auxiliary grid is installed on the other measuring arm;

The processing unit calculates and outputs the result of the opening distance between the two measuring arms according to the detection signal output by the capacitive sensor;

The display shows the result of the distance between the two measuring arms.

Preferably, a rotating shaft is fixed on one measuring arm, the main grid base of the capacitive sensor is fixed on the rotating shaft, and the other measuring arm rotates around the rotating shaft.

Preferably, the processing unit is arranged on an integrated circuit board, and the integrated circuit board is mounted on a measuring arm.

Preferably, the display housing is mounted on a measuring arm.

Preferably, a handle and an operating lever are provided; the handle is fixed on one measuring arm, and the operating lever is fixed on the other measuring arm.

Preferably, one measuring arm is provided with a guide plate with a guide groove; the other measuring arm is provided with a guide screw, which moves along the guide groove.

Compared with the prior art, the utility model is equipped with a capacitive sensor, and its detection signal is processed to obtain the opening distance of the ends of the two measuring arms, which can be read out conveniently and quickly on the display, and the measurement efficiency is high. The installation of the capacitive sensor is relatively simple. The main grid and the sub-grid can be installed on the two measuring arms respectively. There is no special requirement for the structure of the measuring arm, which is conducive to optimizing the layout without adding a large volume. The installation and disassembly of the digital card gauge is very convenient, the structure is relatively compact, the cost is also low, and the application range is very wide.

Description of drawings

Fig. 1 is a schematic structural view of Embodiment 1 of the digital graphics card of the present invention;

Fig. 2 is the structural representation of the second embodiment of the utility model digital graphics card;

Fig. 3 is a schematic structural view of Embodiment 3 of the digital caliper of the present invention.

In the figure, relevant reference signs are as follows:

1. Button; 2. LCD screen; 3. Integrated circuit board;

4. Capacitive sensor main grid; 5. Capacitive sensor main grid seat; 6. Rotary shaft;

7. Shaft sleeve; 8. Back cover; 9. Measuring head (Type A);

10. Measuring arm (Type A); 11. Measuring head (Type A); 12. Measuring arm (Type A);

13. Guide plate; 14. Measuring arm (Type B); 15. Measuring arm (Type B);

16. Locking screw; 17. Guide screw; 18. Measuring arm (Type C);

19. Measuring arm (Type C); 20. Operating lever (Type B); 21. Handle;

22. Operating lever (section B).

Detailed ways,

In order to understand the utility model, the following description will be made in conjunction with the accompanying drawings and embodiments.

Embodiment one

Referring to Fig. 1, it is a type A digital caliper, which includes a hinged measuring arm 10 and a measuring arm 12, an electrically connected capacitive sensor, a processing unit and a display, wherein:

The measuring arm 10 is an arc-shaped arm, and the measuring arm 12 is a straight arm. The measuring head 9 and the measuring head 11 are arranged at opposite ends of the two, so as to facilitate the measurement of special-shaped workpieces. The back cover 8 is installed on the hinge parts of the two, and the rotating shaft 6 is fixed on one of the measuring arms 10, and the sleeve 7 is sleeved on it, so that the other measuring arm 12 can rotate around the rotating shaft 6; Take the opposite setting.

The capacitive grid sensor, the main grid 4 and the main grid seat 5 are respectively installed on the fixed rotating shaft 6 of the measuring arm 10, and the auxiliary grid (not shown) is installed on the measuring arm 12 to detect and output the distance between the main grid and the auxiliary grid. Capacitive signal; from this signal the distance spread between the measuring arm 10 and the measuring arm 12 can be calculated.

The processing unit, according to the capacitance signal between the main grid and the auxiliary grid, calculates and outputs the result of the distance between the two measuring arms; in particular, the processing unit is arranged on the integrated circuit board 3, and the integrated circuit board is installed on the rotating shaft 6, which can Simplify the digital card structure.

The display, preferably a liquid crystal display 2, can display the open distance result between the two measuring arms in real time; the housing of the display is installed on the rotating shaft 6, so that the layout of the digital caliper is more compact; in addition, the display is also set to operate Press key 1 to perform related operations.

When in use, the integrated circuit board 3 is connected to the auxiliary grid 4; when the measuring arm 12 rotates around the fixed rotating shaft 6 of the measuring arm 10, the main grid 4 and the auxiliary grid of the capacitive sensor also rotate relatively, which makes the output of the capacitive sensor The capacitive signal changes; after the signal is calculated by the processing unit of the integrated circuit board 3, the result of the distance between the two measuring arms is output, and finally displayed on the liquid crystal display 2.

Embodiment two

Referring to Fig. 2, it is a B type digital caliper, and its measuring arm 14 and measuring arm 15 are arc arms. In the digital caliper, a handle 21 is provided on the measuring arm 15, and an operating lever 20 is also provided on the measuring arm 14 to facilitate operation.

In addition, the measuring arm 14 is provided with a guide plate 13, which is provided with a guide groove, and the guide plate 13 is fixed with the measuring arm 14 through a locking screw 16; correspondingly, the measuring arm 15 is provided with a guide screw 17, which along The guide groove of guide plate 13 moves. Of course, it can also be set in the opposite way.

Embodiment three

Referring to Fig. 3, it is a type C digital caliper, and its measuring arm 18 and measuring arm 19 are both straight arms. Similarly, a handle 21 is provided on the measuring arm 19 ; an operating lever 22 is also provided on the measuring arm 18 . Simultaneously, the measuring arm 19 is provided with a guide plate 13, which is fixed by the locking screw 16; the measuring arm 18 is provided with a guide screw 17, which moves along the guide groove on the guide plate 13. In addition, other structures are the same as those in the previous two examples, and will not be repeated here.

The above are only preferred implementations of the present utility model. It should be pointed out that the above-mentioned preferred implementations should not be regarded as limitations on the present utility model, and the protection scope of the present utility model should be based on the scope defined by the claims. For those skilled in the art, without departing from the spirit and scope of the utility model, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims (6)

1. A digital caliper comprising two measuring arms, characterized in that it also includes a capacitive sensor, a processing unit and a display, wherein: In the capacitive sensor, the main grid is installed on one measuring arm, and the auxiliary grid is installed on the other measuring arm; The processing unit calculates and outputs the result of the opening distance between the two measuring arms according to the detection signal output by the capacitive sensor; The display shows the result of the distance between the two measuring arms. 2. The digital caliper according to claim 1, wherein a measuring arm is fixed with a rotating shaft, the main grid seat of the capacitance sensor is fixed on the rotating shaft, and the other measuring arm revolves around the rotating shaft turn. 3. The digital caliper according to claim 1, wherein the processing unit is arranged on an integrated circuit board, and the integrated circuit board is installed on a measuring arm. 4. The digital caliper of claim 1, wherein the housing of the display is mounted on a measuring arm. 5. The digital caliper according to claim 1, wherein a handle and an operating lever are provided; the handle is fixed on one measuring arm, and the operating lever is fixed on the other measuring arm. 6. The digital caliper according to claim 1, wherein a guide plate is provided on one measuring arm, and a guide groove is arranged on it; a guide screw is arranged on the other measuring arm, and moves along the guide groove.

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