KR101408695B1 - Analog gauge of indicating pressure of fluid - Google Patents

Abstract

It offers an analog gauge that displays the appropriate range of fluid pressures in a simple and inexpensive way without having to manually replace the labels. The gauge includes a reference plate fitted with a first label and a second plate attached with a second label and a third label, each of which is fitted in a body for displaying the pressure of the fluid flowing through the pipe in an analog manner, And a protective cap that exposes the color of the first label by rotation of the second and third labels to indicate an appropriate range of fluid pressure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an analog gauge,

The present invention relates to an analogue gauge, and more particularly, to an analogue gauge that is attached to piping of various manufacturing facilities and displays the pressure of an appropriate range of fluid to be recognized externally in analog manner.

Generally, a gauge is provided inside a pipe for supplying various raw materials and fluids for producing a product, which measures the pressure of the flowing fluid and displays it so that it can be confirmed from the outside. Particularly, in a production line of ultrahigh precision equipment such as a semiconductor or an LCD, a supply pressure of various raw materials and fluids necessary for production of a product is very important in a desired pressure range (hereinafter referred to as an appropriate range). Accordingly, the operator should check the appropriate range of the pressure of the fluid flowing in the pipe through the gauge installed in each pipe from time to time. To this end, a large number of analog gauges are mainly installed in the piping lines of various conventional facilities, and these analog gauges are often used together with the regulator to precisely control the fluid pressure.

Conventional analog gauges used in various industrial fields are marked with a scale indicating the pressure of the fluid flowing inside the pipe along the circumference of the circular instrument panel and a scale corresponding to the pressure measured at the center of the instrument panel Point. The conventional gauge of the regulator is attached to the protective cap of the gauge so as to determine an appropriate range by a guideline, and a label having a color defining an appropriate range is used. That is, in order to display an appropriate range on the transparent film, the label is coated with a color printing layer printed with a predetermined width along the periphery of the protective cap. On the opposite side of the transparent printing film, An adhesive layer for adhering to the surface is applied to a certain thickness.

However, since the appropriate range of the flow rate varies depending on various raw materials, fluids, and types of work, the conventional gauge is manually changed in accordance with this. However, this manual operation requires a separate time to be replaced, and in the process of attaching the label, there is a problem that the label is not attached to the correct position, or the label is not adhered properly and the phenomenon such as wrinkling occurs. In order to solve this problem, there has been proposed a method of adjusting the appropriate range by using the rotation of the gear structure. However, this method has a complicated structure and a large cost to implement.

A problem to be solved by the present invention is to provide an analogue gauge which displays a pressure in an appropriate range at a low cost with a simple method without manually replacing the label.

An analogue gauge for indicating the fluid pressure to solve the problem of the present invention includes a main body connected to a pipe and displaying a pressure of fluid flowing through the pipe in an analog manner, a reference plate fitted to the main body and having a first label attached thereto, A first label having a first label and a second label attached to the first label; a second label having a second label attached to the first label; As shown in FIG.

In the gauge of the present invention, the reference plate may have a circular shape and may be integral with the fastening portion of the protective cap fitted to the main body, and the reference plate and the rotating plate may be made of a transparent material. It is preferable that the second and third labels represent the same color and are distinguished from the color of the first label, and the color of the second and third labels and the color of the first label are complementary colors . And a first and a second knob for rotating the two rotary plates respectively on the coupling portion covering a part of the reference plate, and a third and a fourth knobs for rotating the two rotary plates, respectively, And a fourth knob.

According to the analogue gauge for indicating the pressure of the fluid of the present invention, by using the label attached to the two transparent plates which are in conformity with the shape of the protective cap and have a half-shape and can rotate, A simple method and a low cost can represent an appropriate range of fluid pressure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a perspective view illustrating an analogue gauge for indicating fluid pressure according to one embodiment of the present invention. FIG.
1B is a cross-sectional view taken along line 1B-1B of FIG. 1A.
2 is a plan view showing a lower plate, an upper plate, and a reference plate, respectively, of a rotary plate of a protective cap according to the present invention.
3A and 3B are views for explaining an example of adjusting an appropriate range of fluid pressure by an analog gauge according to the present invention.
4A is a view for explaining an analogue gauge for indicating fluid pressure according to another embodiment of the present invention.
4B is a cross-sectional view of FIG. 4A.
5 is a cross-sectional view illustrating an analogue gauge for indicating fluid pressure according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to enable those skilled in the art to more fully understand the present invention.

Embodiments of the present invention use a label attached to two transparent plates that conforms to the shape of the protective cap and has a half-turn shape and is rotatable so that a simple method and a low cost fluid An analogue gauge that can represent the appropriate range of pressure is presented. For this purpose, a detailed description will be given of a protective cap provided with a label attached to two transparent plates rotating in a half-turn shape, and a process of setting an appropriate range of the fluid pressure in the analogue gauge will be described in detail.

FIG. 1A is a perspective view showing an analogue gauge showing fluid pressure according to an embodiment of the present invention, and FIG. 1B is a sectional view taken along line 1B-1B of FIG. 1A.

1A and 1B, an analogue gauge comprises a main body 20 of a gauge connected to a pipe 10 and a protective cap 30 fitted to the main body 20. [ The main body 20 is provided with a scale for indicating the pressure of the fluid flowing in the pipe 10 along the circumference of the circular instrument panel and a scale corresponding to the measured pressure of the rotating guide 40 Point. Especially, the production line of ultra-high-precision equipment such as semiconductor and LCD shows precisely the fluid pressure together with the regulator.

The protective cap 30 includes a reference plate 32 to which a first label b is attached and two rotary plates 50 to which a second label c and a third label d are attached and can be rotated in a half- . Here, the reference plate 32 indicates that the first label (b) representing the appropriate range of the flow rate is attached by the movement of the second label (c) and the third label (d). The protective cap 30 is provided with a fastening portion 31 fastened to the main body 20 and accommodating the rotating plate 50. At this time, the reference plate 32 and the rotary plate 50 are preferably made of a transparent material so that the bulletin board of the main body 20 can be visually recognized. The reference plate 32 and the rotary plate 50 can be rotated by the fixed portion 54 such as a rivet at the center of the circular instrument panel.

2 is a plan view showing the lower plate 51 and the upper plate 52 and the reference plate 32 among the rotary plates 50 in the rotary plate 50 of the protective cap 30 of the present invention.

Referring to FIG. 2, the first label b is attached to the reference plate 32, the second label c is attached to the lower plate 51, and the third label d is attached to the upper plate 52. The reference plate 32 is circular in conformity with the instrument panel of the main body 20 and does not rotate because it is integrated with the fastening portion 31. [ The lower plate 51 and the upper plate 52 are fixed to the reference plate 32 by the fixing portions 54 and have a half-shape except for the vicinity of the fixing portions 54. When the lower plate 51 and the upper plate 52 are fixed by the fixing portion 54, it is preferable that the lower plate 51 and the upper plate 52 form a circle conforming to the shape of the reference plate 32. Although the lower plate 51 and the upper plate 52 are fixed by the fixing portion 54, they can rotate in the same or opposite directions to set an appropriate range a of the fluid pressure.

Each of the labels b, c, and d is in the form of a band having a constant width so that the instrument panel is not inconvenient for reading the scale, and its width is predetermined so as to cover the first label b. To this end, it is preferable that the widths of the second and third labels (c, d) are larger than the width of the first label (b). The second and third labels c and d are of the same color and distinguished from the color of the first label b. In other words, if the second and third labels c and d are on the first label b, the first label b is masked by the second and third labels c and d so that the color is hidden . Normally, the colors of the first label (b) and the second and third labels (c, d) are preferably complementary colors. For example, if the first label b is a blue line, then the second and third labels c and d may be red lines.

3A and 3B are views for explaining an example of adjusting an appropriate range of fluid pressure by an analog gauge according to an embodiment of the present invention.

3A and 3B, when the appropriate range of the fluid pressure is L1 (for example, 60 to 95 psi), the lower plate 51 and the upper plate (52). In some cases, only one of the lower plate 51 and the upper plate 52 may be rotated to express the appropriate range L1. Assuming that the appropriate range of the fluid pressure is L2 (for example, 70 to 110 psi), starting from the appropriate range L1, the lower plate 51 is rotated clockwise to 70 psi and the upper plate 52 is rotated clockwise Let it match to 110 psi. As a result, the color corresponding to the appropriate range L2 is defined by the first label (b). Thus, the rotational direction of the lower plate 51 and the upper plate 52 can be freely determined according to the appropriate range of the fluid pressure.

According to the analog gauge for indicating the fluid pressure according to the embodiment of the present invention, since the appropriate range of the fluid pressure can be realized by simply rotating the rotating plate, there is no need to manually change the label, The pressure of the fluid in the range can be displayed. Accordingly, it is possible to eliminate difficulties such as a problem that a label is not attached to an accurate position or a phenomenon such as a wrinkle does not attach properly during a process of manually attaching a label. On the other hand, it is relatively much less time for the operator to manually rotate the label to set the appropriate range by simply rotating the rotary plate as in the present invention. Accordingly, by setting the appropriate range of the fluid pressure using the present invention, the working time of the operator can be effectively saved.

4A is a view for explaining an analogue gauge for indicating fluid pressure according to another embodiment of the present invention. 4B is a cross-sectional view of FIG. 4A. At this time, the gauge is the same as the gauge described in Fig. 1A, except that a knob is further provided at the end portions of the lower plate 51 and the upper plate 52. Accordingly, the same reference numerals denote the same functions and functions, and a detailed description thereof will be omitted.

4A and 4B, the first knob 51a penetrates through the fastening portion 31 and is connected to the end portion of the lower plate 51. The second knob 52a is fastened to the fastening portion 31, And is connected to the end portion of the upper plate 52. At this time, the first and second knobs 51a and 52a are located in the fastening portion 31 covering a part of the reference plate 32. The first knob 51a moves along the first path 51b formed along the fastening portion 31 and the second knob 52a moves along the second path 52b formed along the fastening portion 31. [ Thus, by providing the first and second knobs 51a and 52a, the lower plate 51 and the upper plate 52 can be stably rotated, and the optimum range (a) can be set more precisely.

5 is a view for explaining an analogue gauge for indicating fluid pressure according to another embodiment of the present invention. At this time, the gauge is the same as the gauge described in Fig. 1A except that the gauge is connected to the side surfaces of the lower plate 51 and the upper plate 52 and further knobs are provided on the side surfaces of the fastening portions. Accordingly, the same reference numerals denote the same functions and functions, and a detailed description thereof will be omitted.

5, the third knob 51c passes through the fastening portion 31 and is connected to the side surface of the lower plate 51. The fourth knob 52c passes through the fastening portion 31 and is engaged with the upper plate 52, As shown in FIG. At this time, the third and fourth knobs 51c and 52c are located on the side of the coupling portion 31 that receives the rotary plate 50. [ The third and fourth knobs 51c and 52c move along a path (not shown) formed along the side surface of the fastening portion 31. [ When the third and fourth knobs 51c and 52c are installed as described above, the lower plate 51 and the upper plate 52 are stably rotated, and the first and second knobs 51a and 52a of FIG. And the appropriate range (a) can be set more precisely.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the present invention. It is possible.

10; Piping 20; main body
30; Protective cap 31; The fastening portion
32; A reference plate 40; Guideline
50; A rotating plate 51; Bottom plate
52; Top plate 54; [0035]
51a, 52a; The first and second knobs
51b, 52b; The first and second paths
51c, 52c; The third and fourth knobs

Claims (7)

A main body connected to the piping and displaying the pressure of the fluid flowing through the piping in an analog manner; And
And a protective cap fitted to the body,
The protective cap includes a reference plate to which a first label is attached, and the protective cap accommodates two rotary plates, each of which is attached with a second and a third label and is rotatable, and the reference plate and the rotary plate Wherein the first label is made of a transparent material and exposes the color of the first label by rotation of the second and third labels to indicate an appropriate range of the fluid pressure. 2. The analogue gauge of claim 1, wherein the reference plate is circular and integral with the fastening portion of the protective cap that fits into the body. delete The analog gauge of claim 1, wherein the second and third labels represent the same color and are distinguished from the color of the first label. 2. The analogue gauge of claim 1, wherein the colors of the second and third labels and the color of the first label are complementary colors. 3. The analogue gauge of claim 2, further comprising first and second knobs for rotating the two rotating plates on the fastening portion covering a portion of the reference plate. 3. The analogue gauge of claim 2, further comprising third and fourth knobs for rotating the two rotating plates on the sides of the fastening portion.

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