KR101200256B1

KR101200256B1 - Charge press indicator for accumulating type fire extinguisher

Info

Publication number: KR101200256B1
Application number: KR20100093077A
Authority: KR
Inventors: 박희돈
Original assignee: 박희돈
Priority date: 2010-09-27
Filing date: 2010-09-27
Publication date: 2012-11-12
Also published as: KR20100111654A

Abstract

The present invention relates to a charging pressure indicator for a pressure-type fire extinguisher, the cross-sectional area is changed in accordance with the pressure and expanded, hand-wound bourdon tube (20), the guide 30 is coupled to one end of the bourdon tube (20) And, in the center of the Bourdon tube 20, the filling pressure indicator for the accumulator fire extinguisher is fixed to the fixed cap 70, the bourdon tube 20 is the case consisting of the upper cover 40 and the lower fixing plate 50 of the lower The internal connection of the lower fixing plate 50 and the inner hole of the fixing cap 70 installed on the lower fixing plate 50 by the lower connection pipe 21, which is built in the inside, is the other end of the soft copper tube 20. After being penetrated, it is welded after being inserted into the adapter 60 installed at the lower part of the case 80. The present invention has a simple manufacturing method and is fixed by means of welding, so that perfect airtightness can be maintained. It is usable, and fire extinguisher Convenience and value, also has a remarkable effect that can accurately display the charge pressure after installing a fire extinguisher.

Description

Charging pressure indicator for accumulator fire extinguisher {CHARGE PRESS INDICATOR FOR ACCUMULATING TYPE FIRE EXTINGUISHER}

The present invention relates to a charging pressure indicator for a accumulator type fire extinguisher, the manufacturing method is simple and easy to install the fire extinguisher by making a case with the upper cover and the lower fixing plate.

In general, the type of fire extinguisher used in the event of a fire is classified by the extinguishing capacity unit, the pressure method and the extinguishing agent, and the double pressure type fire extinguisher is classified into the pressure type and the pressure type fire extinguisher.

Normally, the pressure type fire extinguisher accumulates extinguishing agent and compressed air or non-combustible gas (nitrogen, Co2, etc.) inside the container to release the medicine by the pressure. When the indicator hand indicates the red part, the abnormal pressure and the green part indicate the normal pressure, and it should be used at a pressure of 8.1 to 9.8 /. Therefore, the indicator scale of the indicator hand greatly affects the use of the fire extinguisher in an emergency. It is a matter of course that the scale of the indicator hand can be used effectively in case of fire.

In the conventional general accumulator fire extinguisher indicator needle for achieving the above object, as shown in FIGS. 3 and 4, the cross-sectional area is changed according to the pressure to expand the bourdon tube (steel pipe) adapter screwed to the fire extinguisher ( The indicator needle 104 coupled to the fixed cap 110 coupled to the 102 and formed at the distal end of the bourdon tube 100 is configured to be exposed to the outside of the pressure sign 106 so that the indicator needle 106 may be exposed to the position of the indicator needle. The internal pressure of the fire extinguisher is known.

The conventional invention described above, after the attachment of the flange-type fixing cap 110 to the center of the adapter 102 coupled to the fire extinguisher during the installation of the Bourdon tube 100, which is an indicator needle, the outer side of the fixing cap 110 By inserting the Bourdon tube 100 into the hole drilled in the adapter 102 is to maintain the airtight seal so as not to leak pressure inside the adapter 102 to the adhesive.

Therefore, the Bourdon tube inherent in the adapter is sealed with an adhesive, so it can be used at low pressure, but there is a closed end that cannot be used at high pressure. In addition, the adhesive is injected from the inside of the Bourdon tube, which is wound around the winding type during the injection of the adhesive, which makes the injection of the adhesive difficult and the work difficult and maintains perfect airtightness.

At this time, if the bourdon tube is connected to the adapter by welding means, the workability can be improved as well as maintaining perfect airtightness.However, the fixing cap for aligning the support and center of the bourdon tube before the bonding of the bourdon tube embedded in the adapter is applied to the adapter with adhesive. When fixing the Bourdon tube by secondary welding, the fixing cap is detached due to the high temperature of 800. When the Bourdon tube is joined by the secondary welding, the center of the Bourdon tube is displaced and the position indicated by the indicator hand is heard. It is not possible to work by means of welding.

In order to solve these problems, the filling pressure indicator for the accumulator fire extinguisher, which is a registered utility model application No. 20-2004-1292, filed with the applicant of the present applicant, after fixing the bourdon tube formed in the shape of a steel pipe by an adapter connected to the fire extinguisher, by welding means To fix the Bourdon tube by the method of wire welding, the cap is fixed to the adapter to support and center the Bourdon tube.

The configuration of the present invention is a known pressure gauge formed with a bourdon tube (steel pipe) in which the cross-sectional area is changed according to the pressure and expands, wherein the bourdon tube 2 is embedded in the adapter 4 coupled to the fire extinguisher. The fixing cap (6) is coupled to the adapter (4) so that the airtightness is maintained by the welding means on the outer side of the 4), and the fixing cap (6) is fitted inside the center of the bourdon tube (2) wound in a winding manner. It is a configuration that is fixed to the adapter (4) to support while holding the center of the Bourdon tube.

The Bourdon tube fixed to the adapter by welding means has a longer length of the Bourdon tube than the body of the adapter (4) so as to be exposed to the outside of the adapter to perform welding in the adapter body after cutting to facilitate welding while maintaining airtightness. do.

The fixing cap 6 for holding and centering the Bourdon tube 2 is formed in a cylindrical shape having a stepped portion 8 at the end, and an outer surface of the cap 6 is formed with an incision 10 in the axial direction. As the indicator needle is inserted into the incision 10, the step 8 is inserted into the adapter so that the center of the Bourdon tube can be perfectly supported while being supported.

Therefore, after combining the Bourdon tube (2) to the adapter (4), by combining the welding means from the outside of the adapter, it is easy to combine the Bourdon tube and maintain complete airtightness, after the end of the welding operation by using a cap Since it is fixed to the adapter, it can be supported while keeping the center perfectly. However, the prior art has a problem that the manufacturing method is difficult, the assembly is complicated, and is inconvenient to install in the fire extinguisher.

Therefore, the present invention can be used in low pressure as well as high pressure, because the manufacturing method is simple and fixed by means of welding, it is possible to maintain perfect airtightness, easy to install in the fire extinguisher, can accurately display the filling pressure after installation in the fire extinguisher It is an object of the present invention to provide a charging pressure indicator for an accumulator.

The present invention relates to a charging pressure indicator for a pressure-type fire extinguisher, the cross-sectional area is changed in accordance with the pressure and expanded, hand-wound bourdon tube (20), the guide 30 is coupled to one end of the bourdon tube (20) And, in the center of the Bourdon tube 20, the filling pressure indicator for the accumulator fire extinguisher is fixed to the fixed cap 70, the bourdon tube 20 is the case consisting of the upper cover 40 and the lower fixing plate 50 of the lower The internal connection of the lower fixing plate 50 and the inner hole of the fixing cap 70 installed on the lower fixing plate 50 by the lower connection pipe 21, which is built in the inside, is the other end of the soft copper tube 20. After penetrating, it is inserted into the adapter 60 installed in the lower case 80, characterized in that the weld.

Therefore, the present invention can be used at low pressure as well as high pressure because the manufacturing method is simple and fixed by means of welding, so it can be used at low pressure as well as high pressure. There is a significant effect that can be.

1 is an exploded perspective view of a conventional pressure indicator
2 is a cross-sectional view of a conventional pressure indicator
3 is a cross-sectional view of a pressure indicator of another conventional embodiment
Figure 4 is a perspective view of the state of use of the pressure indicator of another conventional embodiment
5 is a perspective view of the pressure indicator of the present invention
6 is a perspective view of the top cover of the present invention
7 is a perspective view of the lower fixing plate of the present invention
8 is a photograph of the present invention pressure indicator
Figure 9 is a photograph combined with instructions to the Bourdon tube of the present invention pressure indicator
10 is a bottom photo of the present invention
11 is a perspective view of the adapter according to the present invention
12 is a perspective view of the present invention fixed cap

The present invention relates to a charging pressure indicator for a pressure-type fire extinguisher, the cross-sectional area is changed in accordance with the pressure and expanded, hand-wound bourdon tube (20), the guide 30 is coupled to one end of the bourdon tube (20) And, in the center of the Bourdon tube 20, the filling pressure indicator for the accumulator fire extinguisher is fixed to the fixed cap 70, the bourdon tube 20 is the case consisting of the upper cover 40 and the lower fixing plate 50 of the lower The internal connection of the lower fixing plate 50 and the inner hole of the fixing cap 70 installed on the lower fixing plate 50 is the lower connection pipe 21, which is built in the interior, is the other end of the Bourdon tube 20. After penetrating, it is inserted into the adapter 60 installed in the lower case 80, characterized in that the weld.

In addition, the lower fixing plate 50 has a screw coupling hole 51 formed at a corner of the quadrangle, and fastens the screw to the screw coupling hole 51 of the lower fixing plate 50 to couple the case 80 to the fire extinguisher. It is characterized by.

In addition, the lower fixing plate 50 has a coupling protrusion 52 formed symmetrically in a left, right or front and rear direction, and the upper cover 40 has a coupling groove 41 corresponding to the coupling protrusion 52. In this case, the coupling protrusion 52 is coupled to the coupling groove 41 of the upper cover 40 to make a case 80.

The present invention will be described in detail with reference to the accompanying drawings. 1 is an exploded perspective view of a conventional pressure indicator, Figure 2 is a cross-sectional view of a conventional pressure indicator, Figure 3 is a cross-sectional view of a pressure indicator of another conventional embodiment, Figure 4 is a state of use of the pressure indicator of another conventional embodiment 5 is a perspective view of the pressure indicator of the present invention, FIG. 6 is a perspective view of the upper cover of the present invention, FIG. 7 is a perspective view of the lower fixing plate of the present invention, FIG. 8 is a photograph of the pressure indicator of the present invention, and FIG. 9 is a Bourdon tube of the pressure indicator of the present invention. Photographs combined with instructions, Figure 10 is a bottom view of the present invention, Figure 11 is a perspective view of the present invention adapter, Figure 12 is a perspective view of the fixed cap of the present invention.

Bourdon tube of the present invention is made of a steel pipe in the shape of a winding wound in the state of winding in the cross-sectional area changes according to the pressure, and by this principle it is possible to grasp the degree of pressure inside the fire extinguisher, the present invention Instructions are coupled to one end of the copper tube, making it easy to visually identify the internal pressure.

In the center of the Bourdon tube, a fixed cap is coupled. The fixing cap has a hollow cylindrical shape and is vertically divided. And the upper part has a groove in which one end of the Bourdon tube is placed, the lower portion can form a groove so that the lead or bond can be easily filled.

And the case of the Bourdon tube consists of a top plate and a fixed plate of the lower. Therefore, the lower connection pipe, which is the other end of the Bourdon tube, sequentially passes through the inner hole of the fixing cap installed on the fixing plate and the connecting hole of the fixing plate, and is then inserted into the adapter installed at the bottom of the case and welded. If the lower connection pipe is long, cut it after welding. The adapter has a shape in which a fixing flange is formed on a cylindrical outer circumference of an empty cylinder.

On the other hand, the lower fixing plate is formed with a screw coupling hole in the corner of the quadrilateral. Therefore, the case can be reliably coupled to the fire extinguisher by fastening the screw to the screw engagement hole of the lower fixing plate.

On the other hand, the lower fixing plate is formed with a coupling protrusion symmetrically in the left, right or front, rear direction, the upper cover is formed with a coupling groove corresponding to the coupling protrusion. If necessary, the number of the coupling protrusions and the coupling grooves may be increased. Therefore, the coupling protrusion formed on the lower fixing plate is coupled to the coupling groove of the upper cover to make a case. The lower fixing plate is formed of a metal material, and the upper cover is made of plastic, so that the metal material of the coupling protrusion has elastic force, and a hooking portion is formed at the end to enable detachment to the groove by using the elastic force. In addition, the coupling protrusion may be coupled to the groove, and then the horizontal pressure may be applied to the coupling protrusion so as to be in close contact with the groove so as not to fall out.

Therefore, the present invention can be used at low pressure as well as high pressure because the manufacturing method is simple and fixed by means of welding, so it can be used at low pressure as well as high pressure. Can be.

2: Bourdon tube 4: adapter
6: fixed cap 8: stepped
20: Bourdon tube 21: lower connector
30 Instruction 40: Top cover
41: coupling groove 50: lower fixing plate
51: engaging hole 52: engaging projection
60: adapter 70: fixed cap
80: case

Claims

The cross-sectional area is expanded and expanded according to pressure, and the guide 30 is coupled to one end of the bourdon tube 20, and a fixed cap is formed at the center of the bourdon tube 20. In the charge pressure indicator for the accumulator fire extinguisher 70) is combined,
The bourdon tube 20 is to be embedded in the case 80 consisting of the upper cover 40 and the lower fixing plate 50 of the lower, the lower connecting tube 21, the other end of the bourdon tube 20 is the lower fixing plate ( After passing through the inner hole of the fixing cap 70 installed on the 50 and the connecting hole of the lower fixing plate 50, it is inserted into the adapter 60 installed in the case 80, and then welded,
The lower fixing plate 50 is formed with a screw coupling hole 51 at the corners of the quadrangle, and fastens the screw to the screw coupling hole 51 of the lower fixing plate 50 to couple the case 80 to the fire extinguisher.
In addition, the lower fixing plate 50 has a coupling protrusion 52 symmetrically formed on the left, right, or front and rear directions, and the upper cover 40 has a coupling groove 41 corresponding to the coupling protrusion 52. Is formed, by coupling the coupling protrusion 52 to the coupling groove 41 of the upper cover 40 to make the case 80,
The fixed cap 70 is hollow cylindrical inside, the gap is vertically divided, the center of the Bourdon tube 20 is fixed cap 70 is coupled, the fixed cap 70 is hollow cylinder inside, The gap is vertically divided, but the upper portion of the groove of one end of the Bourdon tube 20 is settled, the lower portion of the groove is formed so that the lead can be easily filled,
The adapter 60 is a shape in which a fixing flange is formed on a cylindrical outer circumference of an empty hollow inside.
In addition, since the lower fixing plate 50 is formed of a metal material, and the upper cover 40 is made of plastic, the metal material of the coupling protrusion 52 is made elastic, and the engaging portion is formed at the end to use elastic force. Charge pressure indicator for accumulator type fire extinguisher, characterized in that the coupling groove 41 can be detachable by

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