JPH0536513U - Pressure adjustment handle position display for pressure regulator - Google Patents

Abstract

(57) [Abstract] [Purpose] The position of the pressure adjustment handle of the pressure adjuster, which is a very simple means and is inexpensive in cost, and which allows the return state of the push screw 10 of the pressure adjustment valve 5 to be easily confirmed visually. A display device is provided. [Structure] Push screw 1 for opening and closing the pressure regulating valve 5 of the pressure regulator
In the case where the pressure adjusting handle 11 for advancing / retreating 0 is formed in a cap shape that covers the cylindrical portion 8a of the main body cover 8, the annular hem edge 11a of the pressure adjusting handle 11 is seen on the outer peripheral surface of the cylindrical portion 8a. A pressure adjustment handle position display device in a pressure regulator, which is provided with a colored mark 12 for displaying the opening / closing area of the valve 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pressure adjustment handle position display device of a pressure regulator used by connecting to a high pressure gas container filled with an oxygen cylinder or other various compressed gas or its pipe outlet.

[0002]

[Prior Art]

 In order to prevent accidents, this type of pressure regulator is obliged to always return the pressure regulating valve to the closed position by rotating the push screw that opens and closes the pressure regulating valve after use. Usually, in this returning operation, the push screw is turned by a pressure adjusting handle, and it is confirmed by touch whether or not the operating spring is being pressed. Incidentally, the pressure adjusting handle has recently been changed from a disc type to a cap type.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional return operation, the return position is not completely confirmed, and especially when the pressure adjusting handle is a cap shape, the return state of the push screw cannot be easily confirmed visually from the outside. It was impossible to avoid an accident caused by forgetting.

As a means for solving such a problem, it is known that a display means for visually confirming the return state of the push screw is incorporated in the pressure adjusting handle, but the structure is complicated. The cost was high.

The present invention has been made in view of the above circumstances, and is a pressure regulator that is a very simple means and is inexpensive and inexpensive, and that the return state of the push screw can be easily confirmed visually. An object of the present invention is to provide a pressure adjusting handle position display device.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a pressure adjusting handle for advancing and retracting a pushing screw that opens and closes a pressure regulating valve of a pressure regulator, covering a cylindrical portion of a main body cover. In the cap-shaped member, a colored mark is provided on the outer peripheral surface of the cylindrical portion, the colored mark indicating an opening / closing region of the valve as viewed from the annular hem of the adjusting handle.

[0007]

[Action]

 With the above configuration, the return state of the push screw can be easily and surely confirmed by the colored mark that is exposed from the hem edge of the pressure adjusting handle and is visually observed.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a pressure regulator equipped with a pressure regulating handle position display device of the present invention. The regulator itself is the same as the conventional one, and the main body 1 is divided by the partition 2 into a chamber communicating with the inlet 3 and a chamber communicating with the outlet 4, and the partition 2 is provided with the pressure regulating valve 5. There is. The pressure regulating valve 5 is biased toward the closed position by a small spring 6. A main body cover 8 is attached to the upper opening of the main body 1 via a diaphragm 7, and the pressure regulating valve 5 is attached via the diaphragm 7 by the pressure of an operating spring 9 installed in the cylindrical portion 8a of the cover 8. It is designed to operate on the open side. The operating spring 9 is pressed by a push screw 10 screwed to the head 8b of the cover 8 to apply a pressure force to the diaphragm 7. The push screw 10 is fixed to a cap-shaped pressure adjusting handle 11 that covers the cylindrical portion 8a of the cover 8, and the push screw 10 is rotated by the pressure adjusting handle 11 to press the operating spring 9.

On the other hand, a strip-shaped colored tape 12 is attached to the outer peripheral surface of the cylindrical portion 8a of the cover 8. As shown in FIG. 2, the colored tape 12 has an upper half colored in white 12a and a lower half colored in red 12b. Then, when the pressure adjusting handle 11 is turned and the operating spring 9 is pressed by the push screw 10 to open the pressure regulating valve 5, the annular hem edge 11a of the handle 11 is located in the region of the red color 12b, while the pressure When the adjustment handle 11 is turned in the return direction to move the push screw 10 upward to release the pressing of the operating spring 9 by the push screw 10 and the valve 5 is closed, the hem 11a of the handle 11 is white 12a. It is located in the area. Instead of the coloring tape 12, a coloring mark may be displayed with a paint.

Therefore, the opening / closing state of the pressure regulating valve 5 can be confirmed at a glance from any direction simply by visually observing in which colored region the hem edge 11a of the pressure adjusting handle 11 is located.

[0012]

[Effect of the device]

 As described above, according to the present invention, since the open / closed state of the pressure regulating valve 5 can be easily confirmed visually from any direction, an accident due to forgetting to return the push screw 10 can be effectively prevented. Moreover, since the intended purpose can be achieved by a simple means such as attaching the colored tape 12 to the cylindrical portion 8a of the cover 8, the cost is low and the practical effect is great.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view of a pressure regulator having a pressure adjustment handle position display device according to the present invention.

FIG. 2 is a partially longitudinal front view of the same main portion.

[Explanation of symbols]

 1 Main body 5 Pressure regulating valve 8 Main body cover 9 Operating spring 10 Push screw 11 Pressure adjusting handle 11a Annular hem edge 12 Coloring tape

Claims (2)

[Scope of utility model registration request] 1. A pressure adjusting handle for advancing and retracting a push screw for opening and closing a pressure regulating valve of a pressure regulator is formed in a cap shape for covering a cylindrical portion of a main body cover, wherein an outer peripheral surface of the cylindrical portion is provided. A pressure adjusting handle position display device of a pressure regulator, comprising a colored mark for displaying an opening / closing region of the valve as viewed from an annular hem of the pressure adjusting handle. 2. The pressure adjusting handle position display device of the pressure adjuster according to claim 1, wherein the colored mark is an adhesive tape in which the valve opening side and the valve closing side are color-coded.