KR100222516B1 - Change-over display controller with holding - Google Patents

Abstract

SUMMARY OF THE INVENTION The present invention provides a changeover display regulator equipped with a holding function that, once showing a state of declining gas pressure, maintains the state and reliably announces the gas cutting state of the cylinder.

The catching part 15 is formed in the upper end of the displacement transmission rod 3 which moves like the diaphragm 2 which displaces by the pressure change of the diaphragm room 1, and this catching part 15 is called the gas pressure fall display part 9 The gas pressure is brought into a lowered state by rotating the arm 12 in conjunction with the force point P of the arm 12 constituting the. At this time, the convex groove 20 on the side of the arm 12 is inserted into the through hole 32 formed in the bearing 14 ', and the point shaft 13 protrudes 33 from the bearing 14' to maintain the display state. do. When the valve is replaced and the valve body switch handle 10 is rotated, the tip 33 of the protruding point shaft 13 is press-fitted by the arc-shaped vertical wall 18 of the valve body switch handle 10 to maintain the state. Is released.

Description

Toggle display regulator with retaining function

The present invention is a regulator for displaying (alarming) a decrease in gas pressure due to gas cutting of a gas supply cylinder and also for indicating a connection state of a bomb, and the gas pressure being displayed once is lowered. A changeover display regulator equipped with a holding function, which adds a function whose state does not return to its original state.

In order to supply liquefied petroleum gas (hereinafter simply referred to as gas), a high pressure gas pipe is usually drawn from a plurality of cylinders, for example, two cylinders, connected to the gas inlet of the changeover indicator regulator, so as to alternately consume the gas of the cylinder. It is. The changeover indicator used here is, for example, diaphragm which is displaced by the pressure change of the gas flowing into the diaphragm room, as described in, for example, Real Element 56-105839 (Publication Office 60-6697), and the diaphragm and A rotatable displacement transmission rod which moves together, a valve body switching cam attached to a lower portion of the displacement transmission rod, a swinging link having one end in contact with the valve body switching cam and the other end in contact with the valve rod; A valve body in which a force is applied in a state in which the valve inlet is moved to keep the valve inlet closed at all times, a gas pressure drop display unit indicating a state of lowering the gas pressure due to the lowering of the displacement transfer rod moving like the diaphragm; It consists of a change handle which rotates a change cam.

In the above configuration, once the gas pressure of the bomb is lowered, the gas pressure is once lowered, but the internal pressure of the diaphragm room is increased due to the stop of consumption in the gas consumption line, an increase in the outside temperature, solar heat, or the like. If the display of the gas pressure lowered state is erased, there is a problem that the gas cutting state of the cylinder cannot be accurately understood.

In view of the above problems, it is an object of the present invention to provide a switching display regulator equipped with a holding function that maintains the state of the gas pressure and reliably informs the gas cutting of the cylinder once the gas pressure is depressed.

1 is a cross-sectional view of an embodiment according to the present invention.

2 is a longitudinal sectional view of an embodiment according to the present invention.

3 is a top view of an embodiment of the present invention.

4 (a) is a perspective view of the valve body switching handle, 4 (b) is a top view of the valve body switching handle, and 4 (c) is a bottom view of the valve body switching handle.

Fig. 5 (a) is a cross-sectional view of A-A of Fig. 4 (a), and Fig. 5 (b) is a cross-sectional view of B-B of Fig. 4 (a).

6 (a) is a longitudinal cross-sectional view for explaining the operation of lowering the gas pressure, and FIG. 6 (b) is a cross-sectional view for explaining the lowering of the gas pressure.

FIG. 7 (a) is a longitudinal sectional view for explaining the holding state of the gas pressure drop display, and FIG. 7 (b) is a cross sectional view for explaining the holding state of the gas pressure drop display.

8 is a cross sectional view for explaining a holding state of a gas pressure drop display in another embodiment.

* Explanation of symbols for main parts of the drawings

1: diaphragm room 2: diaphragm room

3: Displacement transmission rod 4: Valve body switching cam

5: valve rod 6: swing link

7: valve inlet 8: valve body

9 gas pressure drop display 10 valve body switching handle

11: display panel 12: arm

13: point axis 14,14 ': bearing

15: engaging portion 16: push torsion spring

17: base 18: vertical wall on the arc

19: bearing hole 20: convex portion

21: groove 22: shaft ball (軸 孔)

23: convex body 24a: first inlet

24b: second inlet 25: outlet

26: diaphragm spring 27: diaphragm waiting room

28: boss 29: chief

30: cover 31: display window

32: through hole 33: end of protruding point axis

P: strength of cancer

In order to solve the above problems, the invention of claim 1 is capable of rotating through a diaphragm displaced by a change in gas pressure in the diaphragm room, and being able to rotate through the center of the diaphragm and attached in a sealed state and moving in the axial direction. A displacement transmission rod, a valve body switching cam fixed to the lower portion of the displacement transmission rod, a rocking link having one end in contact with the valve body switching cam and the other end in contact with the valve rod, and moving with the valve rod to keep the valve inlet closed at all times. Switching display consisting of a valve body to be applied, a gas pressure drop display unit indicating a state of lowering the gas pressure due to the lowering of the displacement transfer rod moving together with the diaphragm, and a valve body switch handle for rotating the valve body switching cam together with the displacement transfer rod. In the regulator, the gas pressure drop display unit The support panel is supported by a bearing bearing a point shaft on which an arm having a display panel is fixed, and the engaging portion formed at the top of the displacement transmission rod is connected to the force point of the arm so that the locking portion rotates the arm by the diaphragm displacement, thereby rotating the display panel. The state in which the gas pressure is lowered is maintained, and the holding state is released by rotating the valve body switching handle.

The invention according to claim 2 is, in the switching display regulator equipped with the above-mentioned holding function, when the display plate reaches the display state of lowering the gas pressure by attaching a push and torsion spring to the point shaft, the bearing is supported by the pushing force of the push and torsion spring. Engagement to prevent rotation of the branch shaft between the shaft and the branch shaft or the arm occurs, maintaining the display state of lowering the gas pressure, the branch shaft moves in the axial direction, and the tip thereof protrudes from the bearing and the valve body switching handle When it is rotated, an arc-shaped vertical wall formed on the base of the valve switch handle presses the tip of the point shaft protruding from the bearing to knock down the arm having the display panel by the twisting force of the push and torsion spring. It consists of a configuration.

According to the above-described inventions, when the cylinder is in a gas cutting state and the display panel is in a state of lowering the gas pressure, the holding function of the display is moved, and after that, even if the internal pressure of the diaphragm room rises and the internal pressure increases, The gas cutting state of a cylinder can be grasped | ascertained surely, without returning the state of a pressure drop indication to an original state.

EXAMPLE

Next, a first embodiment of the present invention will be described with reference to the drawings. 24a is a first inlet, 24b is a second inlet, and 25 is an outlet. The cylinder connected to the first and second inlets 24a and 24b is filled with gas, and the valve body changeover cam 4 is switched to the first inlet 24a and the swing link 6 The valve inlet 7 is opened by pushing the valve rod 5 and retracting the valve body 8.

When gas is consumed from the outlet 25 and the gas of the bomb connected to the first inlet 24a disappears, the internal pressure of the diaphragm room 1 drops, and the diaphragm 2 presses the spring 26 mounted thereon. Gradually descend by force. When the diaphragm 2 descends, the displacement transmission rod 3 also descends with it. Here, the displacement transfer rod 3 moves together in the axial direction, and is attached to the diaphragm 2 in a closed state while being able to rotate.

The base 17 of the valve body switch handle 10 is coupled to the diaphragm waiting room 27 so that the displacement transmission rod 3 penetrates the center of the diaphragm waiting room 27 so that the internal shape of the base 17 boss 28 is hexagonal. 29), the outer shape of the displacement transmission rod 3 inserted into the portion is hexagonal, and can slide in the axial direction, so as not to revolve with each other.

At the upper end of the displacement transfer rod 3, a wedge-shaped locking portion 15 is formed, and the locking portion 15 is supported by the bearings 14 and 14 'raised from the upper surface of the diaphragm waiting room 27. It is connected to the force point P of the arm 12 fixed to the shaft 13. At one end of the arm 12, the display panel 11 is bent in an L shape to be integrally formed, and the push and torsion spring 16 is attached to the branch shaft 13. When the arm 12 is raised while swinging, the display panel 11 coincides with the inside of the display window 31 of the cover 30. The cover 30 is also coupled to the base 17 of the valve body change handle 10 so that it can be removed as needed. Here, two arc-shaped long holes 40 and 41 are formed at the base of the valve body change handle, for penetrating the bearings 14 and 14 'raised from the upper surface of the diaphragm waiting chamber 27.

When the through hole 32 parallel to the point axis 13 is formed in one bearing 14 ', and the display panel 11 shows the gas pressure drop state in the bearing 14' side of the arm 12, The convex portion 20 to be inserted into the through hole 32 is formed by the pushing force of the push and torsion spring 16, so that the convex portion 20 is engaged with the through hole 32 when the convex portion 20 is engaged. The tip of the tip is in the protruding state 33 from the outer surface of the bearing 14 '.

On the upper surface of the valve body switching handle 10 base 17, an arc-shaped vertical wall 18 centered on a hole through which the displacement transmission rod 3 penetrates is formed, and both ends thereof are opened outwardly. By forming (approach), it is possible to smoothly press-in the tip projection 330 of the point shaft 13 when the valve body switching handle 10 is turned.

A permanent magnet 34 is attached to an intermediate position of the arm 12 having the display panel 11 at one end thereof, and the reed switch attached to the bracket 35 at the time when the display panel 11 shows a state of lowering the gas pressure. switch) 36 is activated. In addition, instead of the permanent magnet and the reed switch, the optical fiber cord 38 guides the light to form the reflecting plate 43 on the surface of the display panel 11, thereby positioning the position of the display panel 11 by the optical sensor 39. Can be activated to detect the alarm.

The valve body 8 having the H-shaped cross section is always supported by the valve seat 42 at the rear thereof, and the valve inlet 7 is always provided by the push spring 37 inserted into the rear of the valve body 8. It is mounted so that a force is applied in the closing direction.

In the above embodiment, as the holding mechanism for displaying the gas pressure drop, the through hole 32 formed in the bearing 14 'by the pressure of the push and torsion spring 16 when the display panel 11 shows the gas pressure drop state. The convex groove 20 formed on the side of the arm 12 is coupled to the upper side, but the following mechanism may be employed.

That is, as shown in FIG. 8, the groove 21 is formed in the axial hole 22 of the bearing 14 ', and the convex body 23 of the axial direction is formed in the point axis 13, and the display panel 11 () Indicates that the convex body 23 is inserted into the groove when the gas pressure decreases. In addition, the groove 21 of the shaft hole 22 and the convex body 23 of the point shaft 13 may be set as the number of stages.

Next, the functions of the embodiments will be described. In the figure, the valve body switching handle 10 faces the first inlet 24a. That is, the valve main body cam 4 presses the valve rod 5 which moves with the valve main body 8 of the 1st inlet 24a via the swinging link 6, and opens the valve inlet 7, and diaphragm opens. The internal pressure of the room 1 becomes predetermined pressure by the gas supplied from a cylinder.

When the gas of a cylinder is consumed and gas is cut | disconnected, the internal pressure of the diaphragm room 1 will fall, but when it becomes this state, the diaphragm 2 will fall by the spring pressure of the diaphragm waiting room 27. When the diaphragm 2 descends, the displacement transfer rod 3 also descends so that the engaging portion 15 at the upper end thereof is connected to the force point P of the arm 12 having the display panel 11 at the end thereof. Down. When the force point P is lowered, the arm 12 rotates the point axis 13 about its axis, and the display panel 11 formed at one end of the arm 12 is raised while swinging to raise the display window formed at the top of the cover 30 ( The state of decrease of gas pressure is displayed in conjunction with the position of 31).

When the gas pressure is depressed, the convex portion 20 formed on the side surface of the arm 12 is inserted into the through hole 32 formed in the bearing 14 ', and the tip of the point shaft 13 is supported by the bearing 14'. Protrude outward to maintain the state. Therefore, the display does not return to the original state even when gas consumption stops or the internal pressure of the diaphragm room 1 rises due to other environmental changes.

When the gas pressure is lowered, the reed switch 36 is operated by the permanent magnet 34 attached to the middle of the arm 12, and an alarm installed in the management room or the like alerts the gas cutting of the bomb.

Upon receiving the gas cutting alarm, the valve body change handle 10 is switched to the second inlet 24b side, and the valve rod 5 is press-fitted through the swinging link 6, and the valve body 8 moves together, so that the valve inlet 7 ), The internal pressure of the diaphragm room 1 rises by supplying gas from the cylinder. When the valve body switching handle 10 is switched from the first inlet 24a side to the second inlet 24b side, an arcuate vertical wall 18 formed on the base 17 of the valve body switching handle 10 bears on the bearing. The tip end of the point shaft 13 protruding outward of the 14 'is pushed in, and the arm 12 having the display panel is knocked down by the torque of the push and torsion spring.

When the valve body switching handle 10 is switched, the position of the valve body switching cam 4 is also changed, and the valve body 8 of the first inlet 24a is operated by the pressure of the push spring 37 to open the valve inlet ( 7) close. The cylinder on the side of the first inlet 24a which has been cut gas is replaced with a new cylinder filled with gas. Since the valve body 8 of the first inlet 24a is closing the valve inlet 7, the replaced cylinder Gas is not consumed and remains in that state until the valve body switching handle 10 is replaced.

As described above, according to the present invention, once the state in which the gas pressure is lowered is maintained, the state can be maintained and the gas cutting state of the bomb can be reliably informed.

Claims (3)

Diaphragm displaced by the change of gas pressure in diaphragm room, and displacement transmission rod which can penetrate and rotate through the center of diaphragm and is attached in a sealed state and moves axially together. ) And a gas pressure drop display unit for displaying a gas pressure drop display unit displaying a state in which the gas pressure is lowered due to the lowering of the displacement transfer rod. In the gas pressure drop display unit, an arm having a display panel is provided. the support shaft is supported by the bearing, and the engaging portion formed at the top of the displacement transfer rod is connected to the force point of the arm, and the locking part sets the force point of the arm by the diaphragm displacement and rotates the arm. The holding function, characterized in that the configuration is made to maintain the state when the Chakdoen display switching regulator. The switching display adjuster equipped with the holding function according to claim 1, wherein when the display panel reaches a state in which the gas pressure is lowered by attaching a push and torsion spring to the point shaft, the bearing is formed by a pushing force of the push and torsion spring. The interlocking between the bearing and the point axis or the arm prevents rotation of the point axis, which maintains the state in which the gas pressure is lowered, and the point axis moves in the axial direction so that its tip protrudes from the bearing. Switch display indicator equipped with a holding function, characterized in that made. 3. The changeover display regulator according to claim 1 or 2, wherein, in the changeover display regulator equipped with the holding function, the tip end of the point shaft protruding from the bearing is formed by an arc-shaped vertical wall formed on the base of the valve changeover handle when the valve body changeover handle is rotated. A change-over display adjuster with a holding function, characterized by adding a mechanism for pushing-in and knocking down an arm having a display panel by a twisting force of the push-torsion spring.

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