JPH01220800A - Method and device for simultaneous unplugging of two containers and separated use thereof - Google Patents

Abstract

PURPOSE:To provide simultaneous and sure unplugging of two fluid containers and also separate use after their unplugging by arranging a pair of swing actuation type cam-equipped gas takeout device in such a way as parallelly and surface symmetrically. interlocking the two provisionally, equipping each with a fluid container, and by separating the two containers through swinging. CONSTITUTION:A pair of swing actuation type cam-equipped gas takeout devices 1, 1 has each a body 2 and a lever cam 3. These takeout devices 1, 1 are arranged with their axes of pin 22 parallelly and surface symmetrically. Provisional interlocking parts 27, 27' of male-female fitting type equipped with turn stoppers 26, 26' are furnished at the end of arms 25, 25 protruding from the two lever cams 3, 3 in such a way as facing each other, and thus the two takeout devices 1, 1 are put in interlocking. Fitting holes 11, 11 are provided with fluid containers B, B and separated from each other by means of swinging. At this time, each needle 12 breaks through a sealing plate S against the action of a spring 20. At completion of this unplugging, the cam surface 23 comes to the end, and continued swinging separates the interlocking parts 27, 27' and thus the two containers B, B are fre from each other.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method and apparatus that enable simultaneous opening of two cylinders and separate use after opening.

(Prior technology) One small gas cylinder (100c according to the High Pressure Gas Control Law)
Various opening techniques are known for using a plurality of cylinders at the same time when the amount of waste (less than c is excluded) is insufficient.

One of them is the concept of double opening, in which one gas cylinder is opened and the pressure extracted from that is used to open another cylinder, as shown in, for example, Japanese Utility Model Application Publication No. 156520/1983. .

Additionally, springs, explosives, solenoid valves, etc. are used to open the valves in conjunction with each other. There are also ways of thinking.

However, the applicant is not aware of the existence of a concept of opening two cylinders at the same time and then using each cylinder separately.

(Problem to be solved by the invention) In the case of opening using the extracted pressure, if the cylinder to be opened first has leaked waste, the flow rate and pressure of the waste will be insufficient, making it impossible to perform linked opening. There are cases.

The spring type opens other cylinders via spring elasticity, so it lacks reliability. Also, those that use gunpowder are dangerous to handle, and if the gas in the cylinder is non-flammable or flame-retardant, like carbon dioxide, there is no problem, but if the gas in the cylinder is non-flammable or flame-retardant, like oxygen, it is difficult to handle. In such cases, there is a risk of ignition of the structure. And the solenoid valve type is expensive. As a side note, in the case of oxygen cylinders, RI! says that the method of cutting the sealing plate is faster. The cylinder itself or its structure may catch fire due to heat or adiabatic compression.

It may be very convenient to open two cylinders at the same time and use them separately.

For example, there is an oxygen mask that is used as an evacuation equipment in the event of a fire and is worn completely over the head. The mask itself is lightweight at about 200g and just covers the head, but the weight of the mask is about 560g.
If the mask is attached to one place, its weight will pull that part downward, causing the mask to shift and tilt, making it difficult to fit properly on the head and making it extremely difficult to use.

In this case, cylinders each equipped with a gas extraction device according to the present invention are attached to the mask at symmetrical positions, and both waste extraction devices are temporarily linked with a holder while the mask is folded. When using it, first open both cylinders by swinging them apart, then release the temporary connection, and then put the mask over your head so that the cylinders are positioned symmetrically.
The inside of the mask is filled with oxygen gas in preparation for breathing, and the cylinders are attached to the left and right in a well-balanced manner, making it convenient for use.

As described above, the present invention is intended to provide a method and apparatus that enable simultaneous and reliable opening of two cylinders and separate use after opening. The method of the present invention involves arranging a pair of oscillating cam-type gas extraction devices in parallel and symmetrically, temporarily cooperating with each other, attaching cylinders to each separately, and oscillating both cylinders between a. It is characterized in that after the extraction H position is activated, the temporary cooperation is released.

The device of the present invention includes a main body having a cylinder opening, a puncture needle for opening a cylinder, the tip of which can freely advance into the opening, and which is normally retracted out of the opening by a spring, and a waste removal port; A swinging cam type having a lever cam which is pivotally attached to the main body by a pin and presses against the outer end of the puncture needle with a cam surface, forcing the inner end to advance to the sealing plate opening position during the swinging process of the main body. A pair of gas extraction devices are disposed symmetrically with the pin axes parallel to each other, and a temporary linking part of a male and female fitting type with a detent is provided at the end of the arm that projects from both lever cams facing each other. The present invention is characterized in that both extraction devices were temporarily tested using a holder having a holding cylinder portion that fits on the outer periphery and elastic restraining pieces on both sides of the main body.

(Effect) The method is as follows. The cylinders attached to each extraction device are grasped and swung in the direction in which they are separated from each other. Since the neck of the cylinder is attached to the take-out device, the bottom part opens in a V-shape. During this swinging stroke, each cylinder is opened by its respective take-out device, and the gas inside is taken out. When both cylinders swing and separate at a certain angle, a pulling force is applied to the connecting portion from side to side through both cylinders, and the connection is released, resulting in a state where they can be used separately. All that is left is to use each cylinder independently.If each take-out device is equipped with a normal gas flow rate control valve, the gas will flow out at the required speed even when the take-out device is taking out gas. do.

The case of equipment is as follows. Attach a cylinder to the cylinder installation port of each body of a pair of rocking type cam type gas extraction devices. Since the temporary connecting parts and sides of both take-out devices are verified by the holder, both cylinders will not move by themselves due to rocking or the like. When both cylinders are swung apart, the main bodies of both ejector openings also spring off the elastic restraining pieces of the holder, and are swung apart at the same time. At this stage, a force trying to separate acts on the temporary connecting part, but since the component in the direction that makes an angle with the male and female mating surfaces and the contact surface between the connecting part and the holder is large, the resistance received from these surfaces causes This linkage never separates, so both lever cams are immovable, and the outer end of the puncture needle tracks the cam surface as the main body swings. When the outer end of the puncture needle comes to the protrusion of the cam surface, it is pushed toward the inner end against the action of the spring that always pushes the puncture needle toward the outer end, opening the sealing plate. Furthermore, when both cylinders are separated,
The axial component of the force acting on the connecting portion becomes large, and the connecting portion separates, separating the two extraction devices and releasing the gas to the outside from the gas extraction port at a position given to each.

In this case as well, by providing an ff1ffi control valve at the outlet, the amount of outflow from each cylinder can be freely adjusted. The holder may act together with one of the connecting parts,
Or it may be completely separated from both connecting parts.

(Example) 1 and 1 are a pair of rocking cam type gas dispersion devices.

Each extraction device ff1l has a main body 2 and a lever cam 3, respectively.

The main body 2 has a cylinder outlet 11, a cylinder opening puncture needle 12, and a gas outlet 13.

The cylinder installation port 11 is opened at the bottom end of the main body 2, and a screw 14
The neck N of the cylinder B is screwed together.

In some cases, the cylinder B is placed in a sleeve and the sleeve is screwed together. An O-ring 15 on the inner periphery of the mounting port 11 is tightly fitted to the outer periphery of the neck N to prevent gas leakage.

The cylinder opening puncture needle 12 is inserted into a through hole 17 whose lower end communicates with the attachment port 11 and whose upper end opens into a bearing groove 16 in the upper part of the main body l so as to be freely movable in the vertical direction. The puncture needle 12 is given a tendency to move upward by a spring 2o interposed between the stepped portion 18 of the through hole 17 and its collar 19. The O-ring 21 surrounding the piercing needle 12 blocks communication between the through hole 17 and the bearing f416.

The gas outlet 13 communicates with the through hole 17 and opens on the side surface of the main body 1, and a flow rate control valve is appropriately attached thereto.

The lever cam 3 is attached to the main body 2 by a pin 22 and its bearing groove 1
The puncture needle 12 is pivotably mounted within the puncture needle 6 and is pressed against the upper end of the puncture needle 12 by the action of a spring 20. This lever cam 3
Under normal conditions, the lower end of the puncture needle 12 is located above the position of the sealing plate S of the cylinder B attached to the mounting port 11, and the cam surface 23 of the puncture needle 12 is moved against the spring 20 during the swinging process of the main body 1. It is designed to forcibly advance the sealing plate S to the position where it is opened. If necessary, a strapper 24 is provided at the end of the cam surface 23 to prevent separation from the puncture needle 12. , Thus, the removal device 1 is erected symmetrically with the axes of the pins 2 and 2 being parallel. Arm portions 25.25 protrude from both lever cams 3.3 facing each other. Temporary linkage portions 27.25 and 25.25 and female and male bottom base type with a stopper 2B1.26'.
27' is provided to link both extraction devices 1.1.

Reference numeral 4 denotes a holder, which includes a holding cylinder part 41 that fits on the outer periphery of the linking part 27, 27', and both main bodies provided at both ends of a stay part 42 that extends downward from the holding cylinder part 41 and extends left and right at its lower end. It has elastic restraining pieces 43 and 44 that restrain the sides of 2.2. Engagement grooves 45.46 are provided on the side surface of the main body 2.2, and these engagement grooves 45.46 are provided on the elastic restraint piece 43.44.
Preferably, projections 47, 48 are provided which engage with. The holding cylinder portion 41, the stem portion 42, and the elastic restraining pieces 43, 44 may be integrally molded, or may be molded separately and integrated. Furthermore, resistors, such as protrusions, may be provided on the inner circumferential wall surfaces at both ends of the holding cylinder portion 41 to prevent the linking portions 27, 27' from coming off before the cylinder is opened.

At this point, the cylinders B and B are attached to the attachment openings 11.11 and made to oscillate relative to each other. The bodies i, 1 also swing a distance m about the pins 22, respectively, so that the elastic restraining pieces 43.4-4 of the holder 4 are springed out of engagement with the side surfaces of the body 2, respectively. On the other hand, in the initial stroke of the rocking of both cylinders B and B, a force is acting on the linking surfaces of the linking parts 27 and 27'' in a direction that makes a large angle with this. Due to the resistance force generated between the surface and the inner wall surface of the holding cylinder part 41 of the holder 4, the linking parts 27 and 27' are not separated.Therefore, the lever cam 3.3 is also almost immobile.
Each puncture needle 12 tracks on the cam surface 23, and the tip breaks through the sealing plate S against the spring 20. Here, the waste in the cylinders B and B flows out into the through hole 17,
It is taken out from the outlet 13. When this opening is completed, the cam surface 23 reaches the end, and if the rocking continues, the force component acting on the linking part 27.27' in the axial direction becomes large, and the linking part 27.27' finally separates. Both cylinders BSB become free from each other.

(Effect of the Invention) According to claim (1) of the present invention, two cylinders can be simultaneously opened by an extremely simple operation of swinging them apart, and both cylinders can be used separately. .

In addition, according to claim (2), the waste removal device can achieve cost reduction by only having a partially different configuration in the linking part, and since the left and right sides are arranged almost symmetrically, two cylinders can be simultaneously handled in a well-balanced manner. Since it is a mechanical opening method in which the puncture needle is operated by a cam and the cap is opened, the operation is reliable.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing a specific example of an apparatus directly used for carrying out the method according to the present invention, FIG. 2 is a plan view of the same, and FIG.
The figure is a side view of the same, and FIG. 4 is a schematic side view showing a state of separation into both bongs. 1. Rocking cam type gas extraction device, 2. Main body, 3
・Pot lever cam, 4. Holder, 11. Cylinder installation port, 12. Puncture needle for opening the cylinder, 13. Waste removal port, B. Cylinder, N. Neck, S. Sealing plate. , 16...Bearing groove, 17...Through hole, 20...Spring, 22...Pin J23...Cam surface, 25...Arm part...26.2
6'...Stopper, 27.27'...Coordination part, 41
...Holding cylinder part, 43.44...Elastic restraining piece. Patent applicant: Japan Carbon Gas Co., Ltd. Agent: Kotatsu Nakamura Go0. I' Amended Procedures for Figure 4 Garlic U Fee (released) June 90, 1988

Claims (2)

[Claims] (1) A pair of oscillating cam-type gas extraction devices are arranged in parallel and plane symmetrically, they are temporarily linked, a cylinder is attached to each separately, and both cylinders are swung apart to operate the extraction device. A method that enables simultaneous opening of two cylinders and separate use after opening, characterized in that the temporary link is released after the cylinder is opened. (2) A main body having a cylinder opening, a gas outlet and a cylinder opening puncture needle whose tip can freely advance into the mounting opening and which is normally retracted out of the mounting opening by a spring; A swinging cam-type gas extraction device having a lever cam that is pivotally mounted by a pin and presses against the outer end of the puncture needle with a cam surface, forcing the inner end to advance to the sealing plate opening position during the swinging process of the main body. A pair of devices is arranged plane symmetrically with the pin axes parallel to each other, and a male and female fitting type provisional linking part with a detent is provided at the ends of the arms protruding from both lever cams facing each other, and the outer periphery of this linking part is Both take-out devices are temporarily tested by a holder having a fitting holding cylinder part and elastic restraining pieces on both sides of the main body.It is characterized by allowing simultaneous opening of two cylinders and separate use after opening. Device.