JPH0942500A - Cock for airtight body for improving blowing speed and its blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enlarge a diameter of an aperture of a cock cylindrical space by installing a flat cylindrical check valve body composed of a valve body wall made of a flexible plastic film so as to be agree with the cock cylindrical space opened to a flange surface inside the airtight body. SOLUTION: A blowing cock 7 which has a closing cock 6 fitted to a cock cylindrical space 2 having a large diameter for closing is fused to an installation hole 12 formed on an airtight wall 5 and installed on an airtight body 4. A flat cylindrical check valve body 9 composed of a valve body wall 10 made of a flexible plastic film is installed so as to be agree with the cock cylindrical space 2 opened to a flange surface 3 inside the airtight body 4. It is thus possible to improve the blowing speed of air, and improve the efficiency of blowing operation.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for air-filling air buffers, load-moving bodies, airtight bodies such as floating bodies above water and floating bodies floating in helium, and for gas injection or gas discharge in sealed bodies. And the blower thereof.

[Prior Art] In the above-mentioned fields of use,
Various hermetic bodies are used, but due to the structure, strength, pressure resistance, and manufacturing technology, the effective diameter of the blowing or exhausting plug is about 10 mm, and there is a limit to the blowing speed. However, if high-pressure air or the like is used to supplement this, there is a risk of damaging the airtight body. Moreover, there was no suitable accessory for blowing, and there was no supplement for each function.

[0003] To give an example of an air blowing plug,
(1) A spout such as a tire or a floating bag is composed of an outer cylinder attached to an airtight body and an inner cylinder having a blowout port, and a rubber film is interposed between the blowout port and the outer roll to fit the inner cylinder to the outer cylinder. It is crowded. (2) The stoppers such as the air cushion and the load movement preventive body are composed of a flange portion fused to an airtight body and a cylindrical cavity portion, and a non-return blow port having a small diameter is provided in a sealing lid that seals the cylindrical cavity. In addition, a flat tubular valve body made of a flexible film and hard to open is attached to the airtight body.

[Problems to be Solved by the Invention] First, one requirement is to increase the diameter of the blow-in spout, and although it is not difficult in itself, air or the like is passed through the cylindrical cavity of the spout. If you try to seal with a sealing lid after blowing, the mouth plug does not have a non-return function and air will not flow backwards to maintain the effect of blowing. Is required. For this reason, some mechanisms have been tried, but all of them reduce the effective diameter of the spout, and cannot be said to be effective for improving the blowing speed. The point is to increase the diameter of the spigot and provide a check mechanism,
This mechanism does not obstruct the insertion of the blower or the flow of air etc. during blowing, but it functions as a non-return action while stopping blowing, and its function is not necessarily long-lasting. It suffices as long as it can function until the end of the cylindrical cavity that opens to the outside is reliably sealed by the separately provided sealing plug.

Although it is possible to use a blower having a large diameter in accordance with a blow-in plug having a large diameter as described above, not only an increase in the blowing amount proportional to the diameter but also a high-pressure air impact It is necessary to relax the air conditioner and also to make it possible to increase the amount of air blown in by drawing in air from the outside. On the other hand, the pressure decreases as the blowing amount increases and the impact is alleviated. As a result, inconvenience may occur when it is desired to increase the internal pressure of the airtight body.
Corresponding to such a case, it is desired to have a means for increasing the pressure. In addition, it is desirable that the airtight body be discharged and the blown air is discharged until it is used again. Therefore, it is possible to provide a separate discharge port for discharging, but when discharging by backflowing from the blowing spout, it is an advantage that the spout is large, but the check mechanism becomes an obstacle, The check function must be released while the operation is performed.

[Means for Solving the Problems] In order to solve the problems, the present invention has a wide diameter such that an outer cylinder of a blower having a large diameter can be inserted, and is sealed with a sealing plug by screwing or the like. Provide a tubular body with a mouthpiece cylindrical cavity, a flange for fusion bonding to the airtight body wall of the airtight body, or a mounting lid attached to the airtight body wall in an airtight manner by screwing etc. It constitutes the body of the spout.

When the plug body is provided with a flange, the plug body is fitted into a plug mounting hole formed in the airtight body wall, and the flange surface is fused to the inner side wall of the airtight body wall to form the plug. The main body is attached to the airtight body, and the flat tubular check valve body made of a flexible plastic film valve body wall is attached to the end of the mouthpiece cylinder opening that opens to the inner flange surface of the airtight body. Make up.

When the cap body is provided with a mounting lid, the cap body is fitted with a cap lid so that it fits into the cap cavity which opens at the inner lower surface of the cap.
A flat tubular check valve consisting of a valve body wall made of a flexible plastic film is attached to form a blowing plug, and the mounting lid is attached to the mounting port cylinder bored in the airtight body wall by screwing, etc. It is attached in an airtight manner so that it can be attached and detached.

The blower for blowing air or the like into the airtight body from the blow-in spout having the above-described structure has a large diameter corresponding to the spout cylinder cavity, and the tip is a jet end and the rear end is a suction end. The small-diameter inner cylinder is inserted into the outer cylinder. The suction end of the outer cylinder is closed at its end to form a suction hole. By changing the opening degree of this suction hole with a slide lid or the like, the reverse flow rate can be adjusted and the ejection pressure can be set appropriately. . One end of the inner cylinder is opened in the middle of the outer cylinder as an injection port for high pressure air, and the other end is connected to a high pressure air source.

[Operation] Since the flat tubular check valve body is attached to the end portion of the mouth plug cavity, there is no obstruction of the mouth plug cavity, and it is possible to maintain a large effective diameter. By using a flat tubular valve body as the valve body, the valve body cylindrical cavity can be kept large, so that a blower with a large diameter can be inserted and a blow passage with a large cross section can be secured. The prototype of the flat tubular valve body is that the valve body cylinder walls are in close contact with each other,
When blown, this close contact is released to form a large-diameter cylindrical cavity, but when the blow is stopped, the close contact state between the valve bodies is quickly reproduced due to the resilience of itself and the internal pressure inside the airtight body, and blown in. The backflow of air and the like is prevented. However, it is relatively difficult to keep this backflow prevention completely for a long time, and it is not always desirable that the backflow be stopped until the mouth plug is sealed with the sealing plug. . The spout body is detachably attached to the airtight body through fusion bonding of the flange and the airtight body wall, or a mounting lid and a mounting port cylinder airtightly mounted on the airtight body wall,
Further, since the check valve body is also fused to the flange surface or the lower surface of the mounting lid, it works without any weak point in the structure. Therefore, the strength and pressure resistance of the airtight body will not be impaired by the installation of the blowing spout.

In the blower, one end of the inner cylinder is connected to a high-pressure air source or the like, and when high-pressure air or the like is injected from an injection port opening in the middle portion of the outer cylinder, the blower moves toward the ejection end of the outer cylinder. As the jet flows, the outside air is drawn in from the suction end of the outer cylinder, the flow rate increases due to the mixing of the jet and the outside air, the pressure decreases, and a large amount of air with the impact force relaxed ejects from the tip of the outer cylinder. , It can be blown into the blow spout. When the air is filled with air or the like, it flows backward from the suction end of the outer cylinder and is discharged to the outside, so the pressure of the airtight body does not rise too much. However, this blower is not applicable to gases other than air, such as helium. When such a blower is used, high-pressure air is also blown with a reduced pressure, so there is no risk of damaging the valve body wall or the airtight body wall.
If you want to keep the pressure in the airtight body high, the pressure may be insufficient. In such a case, if the opening degree of the suction hole is reduced and the reverse flow rate is reduced, the pressure approaches the injection pressure of high pressure air,
The internal pressure in the airtight body can be increased. Therefore, a low pressure may be used first, and the blowing speed is prioritized for blowing, and the pressure is increased at the last stage to blow.

Regarding the discharge of the gas in the airtight body, when the blow-in plug is fixed to the wall of the air-tight body, the tip of the exhaust tool is inserted into the opening of the blow-in plug without the sealing plug. The tip portion is made to reach the valve body cylinder cavity, and the space between the valve body walls is separated by the space of the tip portion so that the non-return action is released and the air and the like inside is discharged. When the outlet plug is detachably fitted by screwing the mounting lid and the mounting sleeve together, the flat tubular check valve body will be removed together with the inlet plug, so mounting with a large opening It is possible to exhaust efficiently from the mouth tube.

[Embodiment] In one embodiment shown in FIG. 1, FIG. 2 and FIG. 3, the blowing spout 7 is formed to have a diameter of 55 mm and a thickness of 2 mm, and a mounting hole formed in the airtight wall 5 12
It comprises a flange 3 which is fused to the inner wall of the tube, a tube body 1 having an inner diameter of 20 mm, and a 4 mm-pitch external thread, and a sealing plug 6 having an internal thread which meshes with the external thread. The space between the sealing plug 6 and the cylinder 1 is completely sealed by the packing 22. The flat tubular check valve body 9 has a thickness of 0, 15
mm polyethylene film valve body wall 10 is overlapped and both ends are fused to form a valve body having a folding diameter of 30 mm and a length of 80 mm,
Cut the top open to form four fused leaves (not shown),
Even if the fusible leaf and the surface of the flange 3 are fused to form the blowing plug 7, or as shown in the drawing, the valve body flange 22 having an outer diameter of 50 mm and an inner diameter of 30 mm, and a diameter of 30 mm and a length of 80 mm. , A part of the cylindrical body of a polyethylene molded product having a thickness of 0 and 5 mm is flatly deformed to form the valve body wall 10, and the valve body flange 22 and the flange 3 are fusion-bonded to each other to blow the spout 7
You may comprise. The valve body flange 22 at the upper end of the flat tubular valve body 9 is fused to the flange 3 or the inner surface of the mounting lid 8 so as to be aligned with the cylinder axes of the valve body cylindrical cavity 11 and the spout cylindrical cavity 2. The mouth plug 7 is completed.

FIGS. 4, 5, and 6 show another embodiment,
The blow-in spout 7 is made up of a cylindrical body 1 having an external screw that meshes with the sealing plug 6 and having a mounting lid 8 at the lower end, as in the above-described embodiment. The flat cylindrical check valve body 9 similar to that of the above-mentioned embodiment is attached so as to match the plug plug cylindrical cavity 2 opened on the inner lower surface of the attachment lid 8, and the attachment lid 8 is drilled in the airtight body wall 5. The blowing mouth plug 7 is attached to the airtight body wall 5 forming the airtight body 4 in an airtight manner by removably fitting the attachment opening tube 13 fused to the provided attachment hole 12 by screwing or the like. .

7 and 8 show an airtight body 4 equipped with the present invention.
, Thickness 0,15 mm, folding diameter 830 mm, length 12
Both ends of a 00 mm polyethylene film tube were fused to form a bag, and a diameter of 2 was formed on one part of the airtight wall 5 on one side.
Open the mounting hole 12 of 0 mm, and insert the blow plug 7 into the cylinder 1
The inner wall of the airtight body wall 5 and the surface of the flange 3 are fused to each other, and the blowing spout 7 is attached to the airtight body 4. This airtight body 4
The inner bag is used as an inner bag in an outer bag made of a strong sheet to form an airtight body such as an air cushion.

As shown in FIGS. 9 and 10, the blower has a brass outer cylinder 14 having an outer diameter of 19 mm, an inner diameter of 16 mm and a length of 150 mm, and an outer diameter of 9 m at the tip of which is formed at the injection port 16.
m, inner diameter 6 mm, length 100 mm brass inner cylinder 15,
It is joined so that the tip end is located in the middle. The outer cylinder 14 has a front end formed as a jet end 23 and a rear end formed as a suction end 24, the suction end 24 is closed, and a suction hole 25 having a width of 8 mm and a length of 25 mm is formed near the suction end 24, and the suction is performed. In order to adjust the opening degree of the hole 25, a slide lid 26 having a length of 30 mm that slides along the suction hole 25 is provided so that the injection pressure can be adjusted. The other end of the inner cylinder 15 is connected to a high-pressure air injector 17 connected to a pressure source.

For exhausting air when the blow-in spout 7 is fixed to the airtight body 4, a dedicated exhaust tool is used, and the exhaust tool 21 is used.
As shown in FIG. 11, a 1 mm-thick semi-rigid vinyl chloride material is used as a material, and a flexible strip-shaped member having a length of about 150 mm is formed. The supporting portion 19 has an outer diameter of 40 mm and an inner diameter of 3 mm.
The shape of the ring is 0 mm, and the tip portion 20 is a spatula shape having a width of 25 mm, which is vertically bent or curved. Mouth cavity 2
The distal end portion 20 to be inserted into the valve body wall 1 has sufficient space for separating the valve body wall 10 from the valve body wall 1 and is inserted from the mouth plug cylindrical cavity 20.
The airtight body 4 is evacuated by separating the close contact with each other.

[Effects of the Invention] The airtight plug according to the present invention can increase the diameter of the blown-in plug cylinder cavity, so that a gas-filled air buffer, a load-moving preventer, a submerged or airborne floater. By applying to various airtight bodies such as the body,
It is possible to improve the blowing rate of gas to make the blowing operation efficient, and by using the dedicated blower according to the present invention, the operation efficiency of blowing the gas into the airtight body is significantly improved. It can be improved.

[Brief description of drawings]

FIG. 1 is a partially sectional front view of an airtight body stopper according to an embodiment of the present invention.

FIG. 2 is an external view of a spout body portion in the embodiment shown in FIG.

FIG. 3 is an exploded view showing components of the embodiment shown in FIG.

FIG. 4 is a front view, partly in section, of another embodiment of the hermetically sealed plug according to the present invention.

5 is an external view of a spout body portion in the embodiment shown in FIG.

FIG. 6 is an exploded view showing components of the embodiment shown in FIG.

FIG. 7 is an overall view of an airtight body fitted with a spout body according to the present invention.

8 is a vertical cross-sectional view of the airtight body shown in FIG.

FIG. 9 is a partially enlarged perspective view of the embodiment of the blower.

FIG. 10 is an overall vertical sectional view of an embodiment of the blower.

FIG. 11 is an external view of an embodiment of the exhaust tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 cylindrical body 2 mouth plug cylindrical cavity 3 flange 4 airtight body 5 airtight body wall 6 sealing plug 7 blowing mouth plug 8 mounting lid 9 flat cylindrical check valve body 10 valve body wall 11 valve body cylindrical cavity 12 mounting hole 13 Mounting port tube 14 Outer tube 15 Inner tube 16 Injection port 17 High-pressure air injector 18 Blower 19 Support part 20 Tip part 21 Discharge tool 22 Valve body flange 23 Ejection end 24 Suction end 25 Suction hole 26 Slide lid 27 Packing

Claims (3)

[Claims] 1. A large-diameter plug cylinder cavity 2 and an airtight body 4.
Blow-in cap 7 including a cylinder 1 having a flange 3 that is fused to an airtight wall 5 that constitutes the above, and a sealing plug 6 that is fitted and sealed in the plug cylindrical cavity 2 by screwing or the like. The flange 3
The surface is fused to the mounting hole 12 formed in the airtight body wall 5 and attached to the airtight body 4, and the flange 3 inside the airtight body 4 is attached.
An airtight body for increasing the blowing speed, characterized in that a flat cylindrical check valve body 9 constituted by a valve body wall 10 made of a flexible plastic film is attached so as to match the mouthpiece cylindrical cavity 2 opened on the surface. Mouth plug. 2. A large-capacity plug cylinder cavity 2 and a mounting lid 8
A blower cap 7 having a cylindrical body 1 provided with a cap 1 and a cap 6 for sealing the cap cylindrical cavity 2 by screwing or the like, and a cap that opens on the inner lower surface of the mounting lid 8. A flat cylindrical check valve body 9 composed of a valve body wall 10 made of a flexible plastic film is attached so as to match the cylindrical cavity 2, and a mounting hole 12 is formed in an airtight body wall 5 constituting an airtight body 4. An airtight plug for increasing the blowing speed, characterized in that the attachment lid 8 is detachably fitted in a detachable manner by screwing or the like to the attachment opening 13 that is fused and attached. 3. An outer cylinder 14 having a large diameter that penetrates through a plug cylindrical cavity 2 and is formed in a cylinder 1 that constitutes a blow-in plug 7 attached to an airtight body 4, and inside the outer cylinder 14. The inner cylinder 15 is provided so that the injection port 16 opens midway, and the end of the suction end 24 opposite to the ejection end 23 is closed in the outer cylinder 14, and an opening degree is provided in a portion near the suction end 24. The inner cylinder 1 is provided with a suction hole 25 that can be freely adjusted and is connected to a pressure source.
5. A blower characterized in that a high-pressure air injector 17 for sending high-pressure air to 5 is connected.