JP3188532U - Supply and exhaust plugs for air injection parts such as plastic pools for play - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air supply / exhaust plug which is used in a vinyl pool for a game or the like, can efficiently inject and discharge air, and does not require a pinching operation with a finger. SOLUTION: A base portion 2 and a cylindrical air supply / discharge portion 3 provided along an axis thereof at the center of the inside of the base portion 2 are coupled to an upper end of the air supply / discharge portion 3 in the length direction. Rubber the bottomed cylindrical plug body 6 provided on the tip side of the check valve holding cylinder fitting hole 5 of the strip-shaped connecting piece 4 provided with the check valve holding cylinder fitting hole 5 in the middle. It is integrally molded with resin. Separately from these, a check valve that is fitted and fixed in the fitting hole 5 of the check valve holding cylinder so that it can be fitted and detached into the air supply / exhaust portion 3 and the plug body 6 can be fitted and detached into the upper opening. The holding cylinder 7 is molded. The check valve holding cylinder 7 is integrally formed with a valve support plate 9 having a plurality of ventilation holes 8 formed in the vicinity of the inner lower end. Further, the check valve holding cylinder 7 has a film having appropriate flexibility that covers the entire lower surface of the valve support plate 9 via the valve holding shaft 11 inserted into the shaft hole provided in the central portion of the valve support plate 9 in the check valve holding cylinder 7. Holds the shape of the check valve 12. [Selection diagram] Fig. 3

Description

  The present invention relates to an air supply / exhaust plug of an air injection part such as a plastic swimming pool.

  Conventionally, those shown in FIGS. 9 to 13 have been used as air supply / exhaust plugs for air injection parts such as play pools, vinyl balls, and rubber boats.

  The conventional air supply / exhaust plug 100 shown in the figure is made of rubber, resin, or the like having moderate elasticity, and has a skirt-like base portion 101 that is bonded and fixed to an air injection portion Pa of a play vinyl pool P, and the base A cylindrical air supply / exhaust portion 103 having a check valve 102 at the lower end provided at the center of the inside of the portion 101 along the axis thereof, and a strip-shaped connecting piece coupled to the upper end of the air supply / exhaust portion 103 It consists of a bottomed cylindrical plug body 105 provided at 104, which is integrally formed. The check valve 102 of the air supply / discharge section 103 closes the lower end of the cylindrical air supply / discharge section 103 with a valve plate 102a, and is positioned above the valve plate 102a of the cylindrical air supply / discharge section 103. It is formed by making an oblique cut 103a in the.

  In the conventional air supply / exhaust plug 100, when injecting air, the plug main body 105 is first removed from the air supply / exhaust portion 103, and air is blown directly from the user's mouth or using a figo. Is. The state at this time is as shown in FIG. 10, and the check valve 102 is opened by the pressure of the blown air. The air blown in this way is injected into the playable vinyl pool P. When air blowing is temporarily interrupted due to breathing or the like, as shown in FIG. 11, the check valve 102 is closed by the internal air pressure. When air is blown again, air is injected as shown in FIG. When the air injected into the play vinyl pool P reaches a predetermined amount, the blowing of air is stopped. At this time, as shown in FIG. 12, the check valve 102 first prevents the discharge of air. However, it is completed by finally fitting the plug body 105 to the air supply / discharge portion 103.

  Further, when the air in the play vinyl pool P is discharged, as shown in FIG. 13, the plug body 105 is removed from the air supply / discharge portion 103, and the skirt-like base portion 101 and the air supply / discharge portion 103 are cut into 103a. The check valve 102 is opened by squeezing and crushing with a finger from a direction perpendicular to the direction, and distorting and deforming the air supply / exhaust portion 103.

  The conventional air supply / exhaust plug 100 performs the injection and discharge of air as described above, but the efficiency is extremely low in either case. This is because the air flow path formed by opening the check valve 102 is extremely narrow both when air is injected as shown in FIG. 10 and when air is discharged as shown in FIG. Is due to. The check valve 102 is formed as described above, and the valve plate 102a completely closes the lower end of the cylindrical air supply / exhaust portion 103, and enters the air supply / exhaust portion 103. This is because air flows only through the cuts made by the cuts 103a. Therefore, it takes a lot of time to inject and discharge air. In addition, since air is difficult to be injected, a considerable amount of force is required when the user blows air through the mouth.

  Further, when blowing air, when blowing from the user's mouth, and when discharging air, it is necessary to squeeze the skirt-like base portion 101 and the air supply / discharge portion 103 with fingers, and it takes a long time. There was also a problem that the fingers were tired because they had to be continuously crushed.

  The present invention has been made in view of the above points, and is efficient in both injecting and discharging air, and when air is blown into the mouth by the user, it can be performed without requiring as much force as before. At the same time, it is an object of the present invention to provide an air supply / exhaust plug for an air injection portion such as a vinyl pool for play that does not require a conventional pinching operation with a finger.

  Thus, the gist of the present invention is a skirt-like base portion, a cylindrical air supply / discharge portion provided at the center of the base portion along the axis thereof, and the air supply / discharge portion. A bottomed portion provided on the front end side of the fitting hole of the check valve holding cylinder of the belt-like connecting piece provided with a fitting hole of the check valve holding cylinder described later in the middle in the length direction. A cylindrical plug body is integrally formed with rubber, resin, etc. having appropriate elasticity, and is fitted and fixed in a fitting hole of the check valve holding cylinder separately from these, and is attached to the air supply / discharge portion. With a hard resin, etc., and a flange on the outer periphery of the upper end, and a plurality of required sizes and shapes along the circumferential direction in the vicinity of the inner lower end. A check valve holding cylinder integrally formed with a valve support plate having a vent hole is formed on the check valve holding cylinder. A membrane check valve having an appropriate flexibility in size and shape for covering the entire lower surface of the valve support plate through a valve holding shaft inserted through a shaft hole provided in the central portion of the valve support plate. It is in an air supply / exhaust plug of an air injection part such as a plastic vinyl pool for play.

  Since the present invention is configured as described above, when injecting air, the check valve is displaced downward due to the pressure of the blown air and is separated from the valve support plate in the check valve holding cylinder, and is bent greatly downward. In addition, since the valve support plate is provided with a plurality of vent holes having a required size and shape along the circumferential direction, and the air flow passage is enlarged, the check valve holding cylinder for the blown air is provided. The flow rate when passing through the lower part of this is much higher than in the past. Therefore, air can be injected much more efficiently than before. Further, even when the user blows air through the mouth, it can be performed with less force than before.

  Further, when the air is discharged, the check valve holding cylinder is removed from the air supply / exhaust portion, so that the flow path through which the air escapes is much larger than when the flow flows through the conventional check valve. Therefore, air can be discharged much more efficiently than before.

  In addition, it is not necessary to perform a pinching operation with a finger as in the prior art in both the air injection and discharge operations.

It is a perspective view of the state just before air injection of the air supply / exhaust plug of an air injection part, such as a vinyl pool for play concerning the embodiment of the present invention. It is the same top view. It is the sectional view on the AA line in FIG. It is a longitudinal cross-sectional view of the state before the same air injection. It is the bottom view. It is an enlarged vertical sectional view of the state during injection of the air. It is an expanded vertical sectional view of the state at the time of completion of injection of the air. It is an enlarged vertical sectional view of the state during discharge of the air. It is a perspective view of the state just before air injection of the air supply / exhaust plug of the air injection parts, such as the conventional vinyl pool for play. It is a longitudinal cross-sectional view of the state under injection of the air. It is a longitudinal cross-sectional view of the state which interrupted injection | pouring of the air temporarily. It is a longitudinal cross-sectional view of the state at the time of completion of injection of the air. It is a longitudinal cross-sectional view of the state during discharge of the air.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  In the figure, reference numeral 1 denotes an air supply / exhaust plug of an air injection unit such as a play plastic pool.

  In addition, an air supply / exhaust plug 1 of an air injection portion such as the play vinyl pool has a skirt-like base portion 2 and a cylindrical air supply / discharge portion provided in the center of the base portion 2 along the axis thereof. Of the check valve holding cylinder of the strip-like connecting piece 4 that is provided with a fitting hole 5 of a check valve holding cylinder, which will be described later, in the middle part in the length direction. The bottomed cylindrical plug body 6 provided on the distal end side from the fitting hole 5 is integrally formed with rubber, resin or the like having appropriate elasticity. Separately from these, it is fitted and fixed in the fitting hole 5 of the check valve holding cylinder so as to be freely detachable from the air supply / exhaust portion 3 and to be freely detachable from the upper opening. A valve support plate 9 having a flange 7a on the outer periphery of the upper end and a plurality of vent holes 8 having a required size and shape along the circumferential direction is integrally formed with a hard resin or the like in the vicinity of the inner lower end. A check valve holding cylinder 7 is formed, and the valve support plate 9 is connected to the check valve holding cylinder 7 via a valve holding shaft 11 inserted into a shaft hole 10 provided in the central portion of the valve support plate 9 in the check valve holding cylinder 7. A film-like check valve 12 having an appropriate flexibility in size and shape covering the entire lower surface is held. The valve holding shaft 11 is provided with an enormous portion 11a for retaining it at an appropriate position in the axial direction.

Next, the operation of the above embodiment will be described.
When the air in the play vinyl pool or the like is discharged, it is stored in a state as shown in FIG. In this state, the check valve holding cylinder 7 is fitted into the air supply / discharge portion 3 in a state where the check valve holding cylinder 7 is fitted and fixed in the fitting hole 5 of the check valve holding cylinder of the strip-shaped connecting piece 4. A stopper body 6 on the distal end side of the strip-like connecting piece 4 is fitted into the upper opening of the stop valve holding cylinder 7.

  When injecting air into the plastic pool for play, first, as shown in FIGS. 1 to 3, the stopper body 6 is removed from the upper opening of the check valve holding cylinder 7, and in this state, directly from the user's mouth. Alternatively, air is blown using a fiigo. The state at this time is as shown in FIG. 6, and the check valve 12 is shifted downward by the pressure of the blown air and is separated from the valve support plate 9 in the check valve holding cylinder 7, and is greatly bent downward. In addition, the valve support plate 9 is provided with a plurality of vent holes 8 having a required size and shape along the circumferential direction, and the air flow passage is enlarged. The flow rate when passing through the lower part of the holding cylinder 7 is much higher than in the prior art. Therefore, air can be injected much more efficiently than before. In addition, when the user blows air through the mouth, it can be performed with less force than before.

  When air blowing is temporarily interrupted due to breathing or the like, the check valve 12 is closed by being pushed up by the internal air pressure. When air is blown again, air is injected as shown in FIG. When the air injected into the play vinyl pool reaches a predetermined amount, the air blowing is stopped. At this time, as shown in FIG. 7, the check valve 12 first prevents the air from being discharged. Finally, the stopper body 6 is completed by fitting it into the upper part of the check valve holding cylinder 7.

  Further, when the air in the play vinyl pool is discharged, the check valve holding cylinder 7 is removed from the air supply / discharge section 3 as shown in FIG. As a result, the flow path through which air flows out becomes much larger than when the flow passes through a conventional check valve, and air can be discharged much more efficiently than in the prior art. In addition, in both the above-described air injection and discharge operations, a conventional pinching operation with a finger becomes unnecessary.

DESCRIPTION OF SYMBOLS 1 Supply / exhaust plug of air injection parts, such as a vinyl pool for play 2 Base part 3 Air supply / exhaust part 4 Band-like connection piece 5 Fitting hole of check valve holding cylinder 6 Plug body 7 Check valve holding cylinder 8 Vent hole 9 Valve Support plate 10 Shaft hole 11 Valve holding shaft 12 Check valve

Claims (1)

A skirt-like base part, a cylindrical air supply / exhaust part provided along the axis in the center of the base part, and a middle part in the length direction coupled to the upper end of the air supply / exhaust part A rubber having moderate elasticity with a bottomed cylindrical stopper body provided on the tip side from the fitting hole of the check valve holding cylinder of the band-shaped connecting piece provided with the fitting hole of the check valve holding cylinder described later In addition to being integrally molded with resin or the like, separately from these, it is fitted and fixed in the fitting hole of the check valve holding cylinder so that it can be fitted into and removed from the air supply / exhaust part, and the plug body is formed in the upper opening Integrate a valve support plate with a rigid resin, etc., with a flange on the outer periphery of the upper end, and a plurality of vent holes of the required size and shape along the circumferential direction near the lower end of the inner part The check valve holding cylinder formed in the above is molded, and the check valve holding cylinder is formed in the shaft hole provided in the center of the valve support plate in A vinyl pool for play or the like characterized by holding a film-like check valve having an appropriate flexibility in size and shape covering the entire lower surface of the valve support plate through a valve holding shaft that is passed through. Supply / exhaust plug for air injection section.

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