KR200264533Y1 - Mechanical pressure gage having digital output - Google Patents

Abstract

A mechanical pressure gauge having a digital output displayed by a digital display, which provides a pressure gauge comprising a mechanical shape for precisely displaying pressure values.

Description

Mechanical pressure gauge with digital output {MECHANICAL PRESSURE GAGE HAVING DIGITAL OUTPUT}

The present invention is directed to a mechanical pressure gauge having a digital output displayed by a digital display.

A typical mechanical pressure gauge is shown in FIG. 1, which is a bourdon tube 11 connected to a fluid reservoir pressurized by a port 19 or a support 10 of a housing, and by a spindle 17. Pinion 14 and pointer 16 rotatably supported by 10 and rotatably fixed to support 10, and are linked to Bourdon tube 11 (hereinafter referred to as Bourdon tube) by a force to act upon And a sector gear 13 coupled with the pinion 14. The sector gear 13 can rotate the pinion 14, and accordingly, can rotate the pointer 16. This pointer 16 is caused by pressurized fluid when the sector gear 13 is rotated by the Bourdon tube 11 via the link 12 and by which the Bourdon tube 11 flows into the Bourdon tube 11. Indicates the pressure value when deformed. The spring 15 is coupled to the spindle 17 and the support 10, and after the pressure is released from the support 10, the spring 17 is restored to its original state. However, this pointer 16 can be used to display or indicate only the analog output, but not to accurately indicate the pressure value.

A typical electrical pressure gauge is shown in FIG. 2, which includes a pressure sensor 21 coupled to the tube 20 and connected to an electrical circuit 23 to sense and detect the pressure in the tube 20. . One or more batteries 22 are housed in the housing 27 and connected to the electrical circuit 23 to supply power to the electrical circuit 23 and / or the pressure sensor 21. The electrical circuit 23 can convert the pressure in the tube 20 into a digital output that can be displayed at the display 24. However, the pressure sensor 21 is considerably expensive, and its configuration is very precise and difficult to manufacture.

It is an object of the present invention to provide a pressure gauge comprising a mechanical configuration for precisely displaying pressure values.

1 is a partially exploded view illustrating a typical mechanical pressure gauge.

2 is a partially exploded view showing a typical pressure gauge.

3 is a partially exploded view showing a mechanical pressure gauge according to the present invention.

Figure 4 is a partial plan view illustrating the shape of the mechanical pressure gauge according to the present invention.

3 and 4, the mechanical pressure gauge according to the present invention is provided by a bourdon tube 31 and a spindle 39 connected to a fluid reservoir under pressure through a port 80 or a housing 30 of a support. A pinion 34 rotatably supported by the housing 30, and a pinion 34 rotatably fixed to the housing 30 by a pivot shaft 331 and connected to the bourdon tube 31 by a link 32. And a sector gear 33 which is coupled thereto. The sector gear 33 is when this sector gear is rotated by the bourdon tube 31 via the link 32. And when the bourdon tube 31 is deformed by the pressurized fluid flowing in the bourdon tube 31, the pinion 34 can be rotated. The spring 35 is coupled to the spindle 39 and the housing 30, and after the pressure is released from the housing, restores the spindle 39. The foregoing configuration is similar to that of a typical mechanical pressure gauge, and thus further details are omitted.

The mechanical pressure gauge according to the present invention includes an electric circuit 36 for converting a mechanical signal or the like into a digital output, and a display 37 connected to the electric circuit 36 for displaying a digital output of the electric circuit 36. And one or more batteries 38 connected to the electrical circuit 36 for powering the electrical members. The above configuration is similar to that of a typical electric pressure gauge, so further details are omitted.

The mechanical pressure gauge according to the present invention includes a plate or disk 40 which is fixed to the spindle 39 and rotates together with the pinion 40. The disk 40 includes a periphery in which a large number of holes are formed, for example, 75 holes 41 may be formed in the periphery of the disk 40. An optical sensor or photodetector device 50 is also arranged in the housing 30, which comprises a gap 51 formed therein for accommodating the periphery of the disk 40, and the disk 40 for light emission. A light emitting device 53 disposed on one side and a detector 54 disposed on the other side of the disk 40 for detecting light emitted from the light emitting device 53 and emitted through the opening 41 of the disk 40. ). The photodetector device 50, in particular the detector 54 of the photodetector device 50, comprises an electrical circuit which transmits the detected optical signal to the electrical circuit 36 to be displayed as a digital output on the display 37. It is connected.

In this way the disk 40 and the photodetector device 50 can be used to receive or detect the mechanical movement of the Bourdon tube 31 and / or the rotational movement of the spindle 39, and the detected mechanical movement can be converted into an electrical circuit ( 36, which can convert the signal and display it as a digital output at the display 37. In this way the pressure from the Bourdon tube 31 can be precisely shown as a digital output at the display 37.

It can be used to more accurately point pressure values than conventional mechanical pressure gauges, and is also considerably more expensive and includes a highly precise shape, which has the effect of alleviating and / or eliminating the disadvantages of conventional electric pressure gauges that have been difficult to manufacture. .

Claims (5)

housing, A deformable component or bourdon tube, which is connected to a pressure reservoir for receiving pressurized fluid and which is deformed by an action force, A spindle supported by the housing, Link means for connecting the Bourdon tube to the spindle and rotating the spindle in accordance with the pressure in the Bourdon tube; Displayer, and Means for converting the rotational movement of the spindle into a digital output to be displayed at the display Pressure gauge comprising a. The method of claim 1, The link means is pinion fixed to the spindle and rotated together with the spindle, a sector gear rotatably fixed to the housing and coupled to the pinion, and connected between the bourdon tube and the sector gear and connected to the sector gear. A pressure gauge including a link for rotating the pinion through. The method of claim 1, And a means for restoring the spindle to its original state. The method of claim 1, The rotational motion converting means includes a disk fixed to the spindle and rotated with the spindle, the disk including a peripheral portion having a plurality of openings formed therein, and a light detecting device for sensing the rotational motion of the disk. Pressure gauge. The method of claim 1, The Bourdon tube is a pressure gauge that can be replaced by a deformable component that is deformed by the action force.