JP2553087B2 - Cylinder opening device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cylinder opening device for opening a cylinder filled with a gas that expands a float used in an ocean sensor or the like.

[Conventional technology]

As a conventional example of this type of cylinder opening device, there is
-24199 has been disclosed.

FIG. 5 is a front sectional view of a conventional example, FIG. 6 is a plan sectional view of the same, and FIGS. 5 and 6 show a state before operation.

In the figure, 1 is a cylinder containing gas, 2 is a sealing plate that seals the opening of the cylinder 1, and 3 is a lead wire 4.
It is an electric ignition type squib having. Reference numeral 5 denotes a base on one side of which the opening side of each of the plurality of cylinders 1 is screwed and fixed, and the inside of this base 5 is connected to the cavity portion 6, and the cavity portion 6 has a cutter 7 Are mounted so that they can be moved. An opening pin 8 having a gas vent hole 8a for making a hole in each sealing plate 2 is provided on the end surface of the cutter 7 facing the sealing plate 2, and the center of the other surface of the cutter 7 is provided. Has a piston 9 in contact therewith, and the squib 3 is housed in the piston 9.

On the other hand, upper and lower ends of the cutter 7 are slidably inserted into the upper and lower surfaces of the base 5, and the gas discharged from the cylinder 1 is supplied to the other side of the base 5 to the float of the buoy. The gas supply hole 10 is provided.

11 is a case in which the piston 9 is slidably housed,
The case 11 is screwed and fixed to the base 5 so that one end of the case 11 comes into contact with the cutter 7, and the lead wire 4 of the squib 3 housed in the piston 9 is passed through a small hole provided in the case 11. It has been pulled out.

Reference numeral 12 is a spring pin that keeps the cutter 7 away from the sealing plate 2 at all times.

 The operation of the above configuration will be described below.

FIG. 7 is a front sectional view showing a state after the operation of the conventional example, and FIG. 8 is a plan sectional view of the same.

First, when the lead wire 4 of the squib 3 is connected to a power source (not shown) in the state shown in FIGS. 5 and 6, that is, in the state where the cutter 7 is separated from the sealing plate 2 by the spring pin 12, the squib 3 explodes. To do.

The pressure of this explosion pushes the piston 9 to move the inside of the case 11 to the cylinder 1 side, and the cutter 7 presses the spring pin 12 in the same direction in the same direction as shown in FIGS. 3 and 4. The opening pin 8 is moved to break through the sealing plate 2 to open a hole, and at the same time, the projection 8 is returned without returning the cutter 7.
The gas in the cylinder 1 is released through the gas vent hole 8a.

The released gas is supplied to the float or the like through the gas supply hole 10.

[Problems to be Solved by the Invention] However, the conventional technique having the above-described configuration has a risk of explosiveness because the squib is used as the operating means of the opening mechanism.

As a result, there are problems that handling cannot be performed by a specific person, and that handling restrictions are great, such as requiring special equipment for storing single and finished products.

In addition, there is a problem in that the cost of the device itself or its peripheral equipment is increased due to manufacturing restrictions for the purpose of ensuring safety.

Further, in terms of the configuration, in order to ignite the squib, it is necessary to mount a power source for ignition, which also causes a problem of increasing the cost of the device.

In view of the above problems, the present invention solves the problem that the operation of the unsealing mechanism is due to the actuating means possessing an explosive risk, does not require the constraint of handling from the viewpoint of safety, and is a low-priced cylinder unsealing device. Aim to get.

[Means for solving problems]

In order to achieve the above object, the present invention is equipped with an opening mechanism that is mechanically operated by applying an external pressure generated after dropping a main body of an ocean sensor or the like, that is, during use.

That is, the present invention is a cylinder unsealing device for unsealing a cylinder in which a floating gas is enclosed in an ocean sensor or the like. A cylinder having a sealing plate for sealing the sealing plate is fixed to the slide plate by projecting the sealing plate into the hollow portion of the casing, and the unsealing pin facing the sealing plate of the same cylinder and the unsealing pin are not attached. An opening mechanism including an opening pin holding means that holds the operating state and releases the holding when a constant pressing force is applied from the upper part to operate the opening pin is provided in the hollow portion, and the hollow portion has a pressure of 1 atm. By enclosing air, making the specific gravity of the whole before release of gas larger than 1, and applying pressure from the outside such as water pressure, the slide plate rises and the opening pin holding means is applied to the upper surface of the hollow portion, whereby the opening pin is opened. The holding means giving constant pressing force from the upper to the holding means of the opening pin giving constant pressing force from the top to release the holding of the opening pin, so as to open the sealing plate of the cylinder.

[Work]

With the above configuration, the present invention, when mounted on the main body of the ocean sensor or the like, when the main body is used, external pressure such as water pressure is applied, so that the slide surface is raised and the opening pin holding means is applied to the upper surface of the hollow portion. As a result, a certain pressing force is applied to the opening pin holding means from the upper part to release the holding of the opening pin to operate it, the sealing plate of the cylinder is opened, and the gas for floating can be released from the cylinder.

Also, when the main body is not used, no external pressure is applied, so the slide surface does not rise, and therefore the opening pin holding means does not receive the pressing force from the upper portion unless the main body is used, It is possible to keep the unopened state of the opening pin.

〔Example〕

 Embodiments will be described below with reference to the drawings.

FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view of the same main portion, and FIG. 3 is a sectional view taken along the line AA ′ of FIG.

In the figure, 13 is a watertight, hollow-cylindrical housing, 14 is the bottom surface of the housing 13, and a slide plate that can be moved toward and away from the top surface 13a. 15 is watertight to the housing 13 and is protected by friction. , An O-ring made of an elastic material such as rubber attached between the slide plate 14 and the side surface 13b of the housing 13 for guiding the movement of the slide plate 14, and the hollow portion 16 of the housing 13 thus sealed. Is filled with 1 atm of air.

Reference numeral 16 is a cylinder filled with a floating gas.
Reference numeral 16 denotes a sealing plate 17 for sealing gas emission, which is a hollow portion of the housing 13.
It is fixed to the slide plate 14 in a state of being projected vertically to 16.

Reference numeral 18 denotes an unsealing pin whose tip is opposed to the sealing plate of the cylinder 16, and in this embodiment, the unsealing pin releases gas without breaking after the breaking of the sealing plate 17 like the conventional one. It has a gas vent hole 18a for carrying out.

19 holds the opening pin 18 in a non-operating state,
The lever 19 serves as an opening pin holding means for releasing the holding and actuating the opening pin 18 when a constant pressing force is applied from the upper portion. The lever 19 is mounted on the slide plate 14 and the rotary shaft 20 as shown in FIG. Is attached so as to be rotatable in the direction of arrow A.

Reference numeral 21 is a shear pin that holds the lever 19 so that the lever 19 does not rotate erroneously due to mechanical shock during manufacturing or when the device is not in use.The shear pin 21 is used when the slide plate 14 rises from an external pressure such as water pressure. Should be strong enough to be easily bent by the rotation pressure of the lever 19.

22 is a C ring made of metal or the like and having mechanical strength,
Reference numeral 23 is a post for attaching the C ring 22 to the slide plate 14. As shown in FIG. 3, the mounting hole 24 is set larger than the diameter of the post 23 so that the C ring 22 can move in the circumferential direction.

25 is a stopper groove provided on the inner surface of the housing 13,
The slide plate 14 descends, and the C ring 22 is inserted into the stopper groove.
When it reaches 25, the C ring 22 increases in diameter due to its own mechanical strength and fits into the stopper groove 25, and the slide plate 14
Prevent the descent of.

That is, the stopper groove 25 limits the descending range of the slide plate 14.

The present embodiment is applied to an ocean sensor having a float, where 26 is a flexible watertight float attached to the housing 13 with a mounting agent or the like, and 27 is a penetrating upper surface 13a of the housing 13. It is a gas supply hole provided by the above. In addition, the ocean sensor 28
Is configured such that the specific gravity is larger than 1 when the float 26 does not expand and the specific gravity becomes smaller than 1 when the float expands.

The operation of the present embodiment having the above configuration will be described with reference to the drawings.

FIGS. 4 (a) and 4 (b) are schematic side sectional views showing the operation of this embodiment, in which the unsealing pin 18 and the lever 1 shown in FIG.
9, an unsealing mechanism composed of a rotating shaft 20 and a shear pin 21.

First, when the ocean sensor 28 equipped with this embodiment is put into water, the ocean sensor 28 sinks due to its own weight and receives water pressure proportional to its depth.

The force F (Kg) received by the slide plate 14 by the water pressure is S (m ² ) as the pressure receiving area of the slide plate 14 and H (m) as the water depth.
If the specific weight of water is r (Kg / m ³ ), then F = r × S × H (Kg).

The frictional force between the housing 13, the O-ring 15 and the C-ring 22 is k (K
g), the force required to move the slide plate 14 Fs (Kg)
Is Fs = F−k = r × S × H−k (Kg).

Therefore, when the ocean sensor 28 reaches the water depth where Fs> 0,
The slide plate 14 begins to rise, and the lever 19 is moved to the upper surface 13 of the housing 13.
Press a.

As a result, the moving force Fs (Kg) of the slide plate 14 is applied to the lever 19 and the shear pin 21, and the shear pin 21 is bent and deformed.

Due to the deformation of the shear pin 21, the moving force Fs (Kg) of the slide plate 14 is applied to the opening pin 18 and the sealing plate 17, and the sealing plate 17
Opening pin 18 sticks to.

As a result, the gas in the cylinder 16 passes through the gas vent hole 18a provided at the center of the opening pin 18, passes through the hollow portion 16 and the gas supply hole 27, and is discharged to the float 26. As a result, the float 26 expands, generates buoyancy, and acts to float on the water surface.

At this time, when the internal pressure rises due to the release of the gas and the slide plate 14 is pushed back and descends, the slide plate 14 moves to the C ring 22.
Due to the engagement of the stopper groove 25 with the stopper groove 25, the downward movement is prevented. Such lowering of the slide plate 14 is remarkable when the working depth is made shallow, and the position of the stopper groove 25 may be selected from the working water depth, the gas amount, and the volume of the float 26.

In this embodiment, the pressure receiving area S of the slide plate 14 is
(M ² ) starts moving the slide plate 14 at the desired depth,
It is selected so that the opening mechanism 29 operates.

Further, the mechanical strength of the housing 13, the slide plate 14 and the float 26 and the amount of gas to be expanded by the float 26 are selected so that they act at a desired depth.

Furthermore, although the present embodiment is applied to the ocean sensor having the float 26 as the levitation means, the hollow portion 16 of the housing 13 of the present embodiment can also serve as the levitation means.

In this case, the size of the housing 13 and the position 25 of the stopper groove are set so that the hollow portion 16 has a volume capable of being filled with a sufficient amount of gas for floating the ocean sensor 28.

〔The invention's effect〕

As described above in detail, according to the present invention, the bottom surface of the watertight hollow cylindrical housing is a slide plate that can be moved toward and away from the top surface, and the cylinder having the sealing plate for sealing the gas release is sealed. The stopper plate is projected into the hollow portion of the housing and fixed to the slide plate, and the opening pin facing the sealing plate of the cylinder and the opening pin are held in an inoperative state, and a constant pressing force is applied from above. An opening mechanism including an opening pin holding means for releasing the holding and actuating the opening pin upon receiving is provided in the hollow portion, and air of 1 atm is enclosed in the hollow portion to reduce the specific gravity before the gas is released. Since it is larger than 1, the unsealing mechanism can be mechanically actuated by applying an external pressure generated only after the main body of the ocean sensor or the like is dropped, that is, only during use.

As a result, there is no need to use a member having an explosive risk as an operating means of the opening mechanism, and there is an effect of obtaining a low-priced cylinder opening device without requiring restrictions on handling from the viewpoint of safety.

Further, according to the present invention, since the actuation of the unsealing mechanism is a pressure generated when the main body is used, it is not necessary to mount a power source for ignition and the like, and there is an effect that the cost is reduced.

[Brief description of drawings]

1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view of a main portion of the same embodiment, FIG. 3 is a sectional view taken along the line AA 'in FIG. 1, and FIG. ) (B) is a schematic side sectional view showing the operation of the same embodiment, FIG. 5 is a front sectional view showing a conventional example, FIG. 6 is a sectional plan view of the same, and FIG. 7 is a front sectional view showing the operation of the conventional example. Figure,
FIG. 8 is a sectional view of the same plane. 13 ... Housing, 14 ... Slide plate, 15 ... O-ring, 16 ...
… Hollow part, 17 …… Sealing plate, 18 …… Opening pin, 19… Lever, 21… Shear pin, 26… Float

Claims (4)

(57) [Claims] 1. A cylinder opening device for opening a cylinder filled with a floating gas in an ocean sensor or the like, wherein a bottom surface of a watertight hollow cylindrical housing is a slide plate which can be moved toward and away from the top surface to release gas. A cylinder having a sealing plate for sealing is fixed to the slide plate by projecting the sealing plate into the hollow portion of the housing, and the opening pin facing the sealing plate of the cylinder and the opening pin are not operated. The opening mechanism is provided in the hollow portion, which holds the state, and releases the holding when a constant pressing force is applied from the upper part to operate the opening pin, and the hollow portion is provided with an air pressure of 1 atm. , The total specific gravity before releasing the gas is made larger than 1, and the slide plate is raised by applying external pressure such as water pressure, and the opening pin holding means is applied to the upper surface of the hollow portion. Constant giving pressing force to release the retention of the opening pins, cylinder opening device, characterized by opening the sealing plate of the cylinder from the top to the means. 2. A cylinder according to claim 1, wherein a gas supply hole for supplying gas is provided on the wall surface of the housing by connecting to a floating means such as a float that is more watertight than the hollow portion. Opening device. 3. A cylinder opening device according to claim 1, wherein the hollow portion of the housing also serves as a floating means. 4. A stopper groove is provided on the inside of the side surface of the housing, and a C ring is mounted on the slide surface to limit the descending range of the slide surface.
The cylinder unsealing device according to item 2 or 3.