WO1997002188A1

WO1997002188A1 - Block plug and container provided with same

Info

Publication number: WO1997002188A1
Application number: PCT/JP1996/001752
Authority: WO
Inventors: Fujiko Yamada
Original assignee: Fujiko Yamada
Priority date: 1995-06-30
Filing date: 1996-06-25
Publication date: 1997-01-23
Also published as: AU6138796A; JPH0912044A

Abstract

A block plug comprising an opening (2), a central portion (3) positioned opposed to the opening (2) with a predetermined spacing from the opening and formed centrally of the opening (2), and an outer peripheral wall portion (4) covering an area between an opening end of the opening (2) and an outer periphery of the central portion (3) in a closed manner. The block plug closely contacts with an opened wall surface of a drain port (21) to enable blocking the drain port (21), and comprises a positioning fitting portion (7) which protrudes toward the opening (2) from the central portion (3) and is positioned coaxial with both of the opening (2) and the central portion (3).

Description

Specification

Closure plug and container provided with this closure plug

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closure plug for liquid and a container provided with the closure plug, and in particular, for example, a dishwasher, a basin, a bucket, a food washing container, a dishwasher case, a cup receiving case, a shade stand case, a vase. , Infant bathtubs (baby baths), bathtubs, bathtubs for the handicapped, tubs for breeding, breeding tubs, bathtubs, sinks, washstands, etc. It relates to technology that is effective when applied to containers. Background art

As this type of plug, for example, a structure in which the plug is closely fitted to a water outlet and closed is known.

Also, for example, an opening that is larger than the water outlet to be closed, a central portion that is located opposite to the opening at a predetermined interval, and is formed at the center of the opening, An opening end and an outer peripheral wall that closely covers an outer periphery of the central portion, wherein the central portion is opposed to the water outlet at a predetermined distance and the opening end side is There is known a structure of an obstruction plug that can close the outlet by being in close contact with the opening wall of the outlet (described in Utility Model Publication No. 96419 in 1980).

This closing plug has a structure in which a suction cup is formed on the opening end side, and the suction cup is adsorbed to the opening wall surface of the water tap to close the water tap.

By the way, the former closure plug has a relatively long structure in order to achieve watertightness at the time of closure, and this long structure contaminates the outer peripheral surface of the closure plug and the inner peripheral surface of the water outlet. There is a problem that it is easily damaged and unsanitary. In addition, the above-described long structure and close fitting to the water outlet may make it difficult to remove from the water outlet. In particular, such a problem is more likely to occur when a large fluid pressure is applied to the plug.

In this regard, the latter obstruction plug does not have the same problems as the former, but it lacks the positioning means when closing, so the opening end side must be formed large to make it easier to close. . Such an increase in the size of the open end results in a problem of an increase in the size of the obturator itself.

On the other hand, in a container such as a dishwasher or a bucket as described above, when replacing the liquid stored inside, the container is tilted by hand to discharge the liquid inside, or tilted while lifting the container. Although the liquid is discharged, such work is complicated and involves a problem of fatigue. In addition, there is a risk that the liquid may be scattered to unnecessary places at the time of discharge or may overflow from sinks of sinks. In addition, when washing a predetermined object in the container while simultaneously injecting and discharging water into the container, the liquid must overflow from the upper opening end of the container, and it takes a lot of time and liquid amount. Is needed and wasted.

Some sinks have a double sink structure, but such a double sink structure has a large sink because there are multiple sinks. When cleaning an object, the specified object must be moved between the sinks, and the operation is complicated.

An object of the present invention is to solve the above-mentioned various problems and to provide a closure {} and a container equipped with the closure, which can ensure the closure.

The above and other objects and novel features of the present invention are described in the present specification and And the accompanying drawings. Disclosure of the invention

The following is a brief description of the outline of typical inventions disclosed in the present application.

That is, the plug according to the present invention has an opening that is larger than the drainage port on the upstream side to be closed, and is opposed to the opening at a predetermined distance from the opening, and is formed at the center of the opening. And an outer peripheral wall portion that closely covers an opening end of the opening and an outer periphery of the central portion, wherein the central portion is opposed to the drain port at a predetermined interval. A closure plug that is located so that the opening end side is in close contact with the opening wall surface of the drainage port so that the drainage port can be closed, and is protruded from the central portion side toward the opening portion side and both of them. A positioning fitting portion is provided coaxially with the positioning member, and the positioning when closing is performed by fitting the positioning fitting portion into the drain port.

In this case, first, at least the opening end side is formed to be flexible, and the opening end side is deformed by hydraulic pressure that blocks discharge from the drain port, whereby the opening on the opening end side is formed. A structure that increases the degree of close contact with the wall surface can be adopted.

Secondly, the positioning fitting portion may be formed so as to be detachably engaged with the central portion side.

Third, the positioning fitting portion is formed in a tapered shape that gradually narrows from the central portion side to the opening portion side. When the positioning fitting portion is closed, the tapered surface of the positioning fitting portion has an opening end of the drain port. Can be configured to abut against.

Fourth, a sealed space capable of communicating with the outside is formed inside the positioning fitting portion. Thus, a structure in which the tapered surface side expands and contracts due to a pressure change in the closed space can be obtained.

Fifth, a second opening smaller than the opening and coaxial with the opening, and a flexible second opening end of the second opening and an outer periphery of the central portion are closely connected. A second outer peripheral wall portion that covers the opening end side and the second opening end side are in close contact with the opening wall surface to form a second sealed space that can communicate with the outside. Structure.

Also, the plug according to the present invention comprises: a first suction cup having an opening larger than an upstream drain port to be closed; and a second suction cup having an opening larger than a downstream drain port to be closed. When the first suction cup is adsorbed on the opening wall surface on the upstream side of the drain port, the second suction cup is adsorbed on the opening wall surface on the downstream side of the drain port, so that the drain port is closed.

Further, the container of the present invention comprises, firstly, any one of the above-mentioned plugs, and the drain port is closed by the plug.

Secondly, any one of the above-mentioned plugs is provided, and the drain port is closed by the plug, and the bottom part where the drain port is opened is formed on an inclined surface descending toward the drain port side. It is the structure which was done.

Thirdly, any one of the above-mentioned closures is provided, and the drainage port is closed by this closure plug, and at least at the time of installation, a leg for separating the downstream open end of the drainage from the installation surface is formed. It is the structure which was done. Fourthly, a drainage port is closed by any one of the above-mentioned plugs, and a connector is connected to the plug. Hereinafter, the operation of the plug according to the present invention will be described.

According to the above-mentioned plug of the present invention, it is larger than the upstream drain port to be closed. An opening; a central portion formed at the center of the opening, facing the opening at a predetermined distance from the opening; and an intimate contact between an opening end of the opening and an outer periphery of the central portion. The central portion is located opposite to the drain port at a predetermined interval, and the opening end side is in close contact with the opening wall surface of the drain port. An obstruction plug capable of closing a drain port, comprising a positioning fitting portion protruding from the central portion side toward the opening portion and positioned coaxially with both of them. With the structure in which the insertion portion is positioned at the time of closing by being inserted into the drain port, the central portion is opposed to the drain port at a predetermined interval, and the opening end side is the opening of the drain port. Closes the drain by close contact with the wall And a positioning fitting portion protruding toward the opening side and coaxially positioned with respect to both the center portion and the opening portion. The positioning of the obstruction plug at the time of obstruction can be accurately performed by fitting into the occluding plug.

As a result, there is no need for a long structure such as an obstruction plug having a structure in which the obstruction plug is tightly fitted to and closed by the drain port, and the outer peripheral surface of the obstruction plug and the inner peripheral surface of the drain port are hardly contaminated and sanitary. In addition, since the position of the plug is accurately determined, the hydraulic pressure applied to the outer peripheral surface of the plug when the drain port is closed can be made uniform, so that the plug can be reliably and stably closed. The plug according to the present invention has a structure in which the positioning insertion portion is inserted into the drain port. However, since the positioning insertion portion is for positioning the plug, it is required to be in close contact with the drain port. Fitting and unnecessary length are not required. Further, the obstruction の of the present invention can solve the problem that it is difficult to remove from the drain port due to the close fitting to the drain port.

On the other hand, the closure の of the present invention can accurately perform the positioning at the time of closure by the positioning fitting portion. It is not necessary to increase the open end side to make it easier to close as in the case of the closure plug described in Japanese Patent Application Publication No. 2000-205, and it is possible to reduce the size of the opening end side and thereby the size of the closure plug itself. . In addition, by the weight of the positioning fitting portion and the fitting of the positioning fitting portion into the drain port, the movement of the obstruction plug at the time of closing can be reliably prevented, and the blocking and the stabilization can be ensured.

In this case, firstly, at least the opening end side is formed to be flexible, and the opening end side is deformed by the liquid pressure that blocks the discharge from the drain port, so that the opening wall side of the opening end side is deformed. The structure in which the degree of closeness is increased can ensure and stabilize the obstruction by increasing the degree of closeness.Secondly, the positioning fitting portion is detachably engaged with the central portion side. With this structure, the plug can be cleaned by separating the positioning fitting, which is sanitary.

Third, the positioning fitting portion is formed in a tapered shape that gradually narrows from the central portion side toward the opening portion side, and when closed, the positioning fitting portion contacts the opening end of the drain port. With such a structure, it is possible to easily fit the positioning fitting portion into the drain port, and it is possible to achieve convenience in positioning. Further, the positioning fitting portion abuts on the open end of the drain port on the taper surface, thereby improving the positioning accuracy and the watertightness of the drain port when closed. In addition, it is possible to absorb differences in the size of various drains.

Fourthly, if a sealed space capable of communicating with the outside is formed inside the positioning fitting portion and the tapered surface side expands / contracts due to a pressure change in the sealed space, the flexible opening end side can be deformed. As a result, the tapered surface side expands and contracts (as the amount of deformation on the opening end side increases, the taper surface side decreases). The watertightness of the drain port at the time of closing by the contact of the tapered surface of the inlet portion with the open end of the drain port can be further improved.

Fifth, a second opening smaller than the opening and coaxial with the opening, and a flexible second opening end of the second opening and an outer periphery of the central portion are closely connected. A second outer peripheral wall portion that covers the opening end side and the second opening end side are in close contact with the opening wall surface to form a second sealed space that can communicate with the outside. With such a structure, the second closed space can be closed by the suction function accompanying the decompression. In the plug described in the above-mentioned Utility Model Publication No. 96419 of 1980, since the suction cup is formed up to the outer peripheral side of the main body, there is a problem that the plug itself becomes large. Although there is a point, in the present invention, the closed space that is the suction cup is formed only on the inner side of the plug, so that the plug can be downsized.

In addition, the above-described blockage の of the present invention includes a first suction cup having an opening larger than an upstream drain port to be closed, and a second suction cup having an opening larger than the downstream drain port to be closed. The drain port is closed by adsorbing the first suction cup on the opening wall surface on the upstream side of the drain port and simultaneously adsorbing the second suction cup on the opening wall surface on the downstream side of the drain port. This eliminates the need for a long structure such as an obturator plug that is tightly fitted to the drain port and closed, and the outer peripheral surface of the obturator plug and the inner peripheral surface of the drain port are less likely to become dirty and sanitary. In addition, the watertightness of the drainage port at the time of blockage due to the adsorption function can be improved.

In addition, the container of the present invention includes any one of the above-described plugs, and has a structure in which a drain port is closed by the plug, so that it can be used as a container having the effect of the plug. On the other hand, when replacing the liquid stored inside, remove the plug from the drain port to drain the liquid. This eliminates the need for tilting the container by hand to discharge the liquid inside, or tilting the container while lifting to discharge the liquid, thereby simplifying the discharging operation and reducing labor. As a result, it is possible to reliably prevent the liquid from being scattered at the time of discharge and overflow from the sink of the sink. Furthermore, in the case of washing a predetermined object in the container while simultaneously injecting and discharging water into the container, there is no need to overflow the liquid from the upper opening end of the container, and the liquid is discharged from the drain port at the bottom of the container. Can be discharged, so that the time and the amount of liquid during washing can be reduced.

In addition, since the container of the present invention has a drain port with an obstruction plug, it can fulfill the function of a double sink without being provided with a double sink structure by being appropriately installed and used in sink sinks. Since it is possible, it is possible to reduce the size of the sink. Also, in a double-sink structure, when using both sinks to wash a predetermined object, the predetermined object must be moved between the sinks, which complicates the work. Problems can be solved.

Further, firstly, any one of the above-mentioned plugs is provided, and the drain port is closed by the plug, and the bottom part where the drain port is opened has an inclined surface descending toward the drain port side. With the formed structure, in addition to having the above-described effects of the container of the present invention, it is possible to reliably prevent the liquid after discharge from remaining in the container.

Secondly, any one of the above-mentioned plugs is provided, and the drainage port is closed by the plugging plug, and at least at the time of installation, a leg is formed to separate the downstream open end of the drainage port from the installation surface. In addition to having the effect of the container of the present invention described above, the opening end on the downstream side of the drain port is separated from the installation surface. As a result, it is possible to reliably prevent the liquid discharged from the liquid discharge port from remaining between the opening end on the downstream side of the discharge port and the installation surface. Speeding up can be achieved.

Thirdly, if any one of the above-mentioned plugs is provided, and the drain port is closed by the plug, and a connecting member is connected to the plug, the connecting member is opened when the drain port is opened. By pulling the plug, the plug can be removed from the drain port, so that opening of the drain port can be facilitated and labor can be reduced. In addition, by connecting the free end side of the connector to a predetermined location, it is not necessary to search for an obstruction plug that may be confused, and it is possible to prevent the obstruction plug from being lost. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing an obturator according to a first embodiment of the present invention, FIG. 2 is a sectional view showing an obturator according to the first embodiment, and FIG. FIG. 4 is a perspective view showing a container according to a first embodiment, FIG. 5 is a perspective view showing a closure plug according to a second embodiment of the present invention, and FIG. 6 is a second embodiment thereof. FIG. 7 is a cross-sectional view showing an obstruction plug according to a second embodiment of the present invention, FIG. 8 is a perspective view showing an obturator according to a third embodiment of the present invention, and FIG. FIG. 10 is a cross-sectional view showing an occluding plug according to a third embodiment of the present invention. FIG. 10 is a cross-sectional view showing the occluding plug according to the third embodiment when the occluding plug is closed. FIG. FIG. 12 is a cross-sectional view of the fourth embodiment of the present invention when the obturator is closed, FIG. 13 is a perspective view of the fifth embodiment of the present invention, and FIG. Is the fifth embodiment Sectional view showing a certain embolization, 1 5 is a sectional view showing a time clogging of the fifth embodiment in which embolization. BEST MODE FOR CARRYING OUT THE INVENTION

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a plug according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view showing the plug according to a first embodiment, and FIG. 3 is a perspective view of the plug according to the first embodiment. FIG. 4 is a sectional view showing a closed state, and FIG. 4 is a perspective view showing a container according to the first embodiment.

The plug 1 of the first embodiment has a circular opening 2 having a larger diameter than the circular outlet 2 1 (shown in FIGS. 3 and 4) on the upstream side to be closed. A central portion 3 formed at the center of the opening 2 and being opposed to each other at an interval, and an opening end of the opening 2 and an outer periphery of the central portion 3 are closely covered. The opening 2, the central portion 3, and the outer peripheral wall 4 are integrally and flexibly formed of a synthetic resin elastic material such as vinyl chloride. In the present embodiment, it is formed in a hat shape or bowl shape by a commercially available suction cup. In addition, the opening 2, the center 3, and the outer peripheral wall 4 are formed to be transparent, so that the transparent color thereof eliminates the feeling of pressure of the obstruction plug 1.

A connecting portion 5 having a connecting hole 5A is formed on an outer surface of the central portion 3, and a connecting tool 6 such as a stainless steel chain is connected to the connecting portion 5. On the other hand, the inner peripheral surface of the central portion 3 protrudes toward the opening 2 side and has a short side coaxially positioned with respect to both the central portion 3 side and the opening 2 side. The cylindrical positioning fitting portion 7 is formed of a hard synthetic resin or the like. The outer diameter of the positioning insertion portion 7 is slightly smaller than the inner diameter of the drainage port 21, and the positioning when closing is performed by loosely fitting the positioning insertion portion 7 into the drainage port 21. It has been. Further, the positioning fitting portion 7 is formed to have such a short length that its distal end surface projects slightly outward from the open end of the opening 2. Positioning The base end surface of the fitting portion 7, that is, the surface facing the inner peripheral surface of the central portion 3 is formed as a convex curved surface corresponding to the concave curved surface of the inner peripheral surface of the central portion 3. In this case, as shown by the broken line in FIG. 2, a flange 7A is formed on the base end face side of the positioning fitting portion 7, and the lower surface of the flange 7A has an opening wall surface 2 It is also possible to adopt a structure that is close to. With such a structure having the flange 7A, in addition to the effect of improving the watertightness of the drain port 21 when the obstruction plug 1 closes, the close contact of the lower surface of the flange 7A with the opening wall surface 22 is achieved. For example, when the obstruction plug 1 is pressed by a large pressing force such as a hydraulic pressure, the positioning fitting portion 7 penetrates too deeply into the drain port 21 and the opening portion 2, the center portion 3, and the outer peripheral wall portion 4 This can solve the problem of deformation and leakage from the drain 21.

In addition, as shown by the broken line in FIG. 2, a knob piece 8 is formed on the outer peripheral surface of the opening 2 on the opening end side, and the drain port 2 1 closed by the plug 1 by pinching the knob piece 8. It is also possible to adopt a structure in which the openings are formed.

An engaging female portion 7B is formed on the axis of the base end surface of the positioning fitting portion 7, and an engaging male portion 3A protrudes from the axis of the inner peripheral surface of the central portion 3, The engaging male part 3A is fitted to the engaging female part 7B, and the positioning fitting part 7 is detachably engaged with the center part 3 side.

In this case, it is possible to form the engaging female portion 7B on the center portion 3 side and the engaging male portion 3A on the positioning fitting portion 7 side.

Next, the container 23 provided with the obstruction plug 1 having such a structure will be described with reference to FIGS. In the first embodiment, the container 23 as a dishwashing tub is applied. However, the container 23 of the present invention is not limited to such a dishwashing tub. Bowl, bucket, food washing Water purifier 2 3, Dishwasher case for dishes, Cup receiving case, Shade stand case, Vase, Infant bathtub (Baby bath), Bathtub, Bathtub for the physically handicapped, Talai, Breeding aquarium, Bathtub, Sink, Washstand It can be applied to an obturator plug 1 for closing a drain port 21 of a container, and a liquid container 23 such as a dishwasher. As shown in FIGS. 3 and 4, a circular drain port 21 is opened on the flat bottom of the container 23, that is, on the above-mentioned opening wall surface 22, and the drain port 21 has the structure described above. It is structured to be closed by an obstruction plug 1.

As shown in FIG. 4, an engagement portion 24 formed of an engagement hole is formed at an edge of the container 23, and one end side of the connector 6 of the closure plug 1 engages with the engagement portion 24. Has been consolidated. A locking portion 25 having a locking hole 25A is formed at an edge of the container 23. The locking portion 25 is locked at a predetermined position such as a hook on a wall surface, thereby making it impossible. the bottom of the _c container 2 3 and summer as the vessel 2 3 can be stored in a predetermined position at the time of use is formed legs 2 6, this leg 2 6 bottom of the container 2 3 drainage port 2 1 side It is formed on a slope descending toward the bottom, and the downstream open end of the drain port 21 is separated from the installation surface at a predetermined installation location. In particular, the latter structure is used, for example, when the drain port 21 of the container 23 and the drain port (not shown) of the sink of the sink are aligned with each other to discharge the liquid in the container 23. The sink can be quickly discharged without soiling the sink surface of the sink.

Next, the operation of the first embodiment will be described.

When the drain port 21 of the container 23 is closed by the plug 1 of the first embodiment, the positioning plug 7 is inserted into the drain port 21 to position the plug 1 at the time of closing. The central portion 3 is located opposite to the drain port 21 at a predetermined distance, and the opening end side is closely contacted with the opening wall 22 of the drain port 21. Then the container Inject the prescribed liquid into 23. At the time of this injection, the risk of displacement of the obstruction plug 1 due to the water force is reliably prevented by fitting the positioning fitting portion 7 into the drain port 21. As shown in FIG. 3, the obstruction plug 1 is pressed by its open end due to the liquid pressure of the liquid injected into the container 23, and is gradually deformed into a flat shape, so that the obstruction plug 1 comes into close contact with the open wall surface 22 at the open end. The degree of occupancy gradually increases, and the increase in the degree of closeness will ensure and stabilize the occlusion.

For example, when a predetermined substance is put into the container 23 for washing with the liquid injected in this way and then the liquid is discharged, the connector 6 of the plug 1 is pulled to pull the plug 1. Is removed from the drain port 21 and the drain port 21 is opened to be discharged from the drain port 21.

According to the first embodiment having such a configuration, the following effects can be obtained. First, the positioning of the blockage 1 at the time of blockage can be accurately performed by fitting the positioning fitting portion 7 into the drain port 21. In addition, since the position of the plug 1 is accurately determined, the hydraulic pressure applied to the outer peripheral surface of the plug 1 when the drain port 21 is closed is made uniform, and the plugging and closing is ensured and stabilized. Can be.

In addition, a long structure such as the plug 1 that is tightly fitted to and closed by the drain port 21 is not required, and the outer peripheral surface of the plug 1 and the inner peripheral surface of the drain port 21 are less likely to be contaminated and sanitary. is there. In addition, in the plug 1 of the first embodiment, the positioning fitting 7 is configured to fit into the drain port 21, but since the positioning fitting 7 is for positioning the plug 1, The close fitting to the drain port 21 and the unnecessary length are not required, and as a result, the above-described effects are obtained.

Second, the obstruction plug 1 of the first embodiment can eliminate the problem that it is difficult to remove the plug from the drain port 21 due to the close fitting to the drain port 21.

Third, the plug 1 of the first embodiment is positioned at the time of closing by the positioning fitting 7. Since the placement can be performed accurately, it is convenient to form a large open end side and close it as in the plug 1 described in the above-mentioned Utility Model Publication No. 96419 of 1980. There is no need to improve the performance, and the size of the open end side can be reduced, and thereby the size of the plug 1 itself can be reduced. In addition, by the weight of the positioning fitting 7 and the fitting of the positioning fitting 7 into the drain port 21, the movement of the plug 1 at the time of closing can be reliably prevented, thereby ensuring and stabilizing the blocking. Can be achieved.

Fourth, since the positioning fitting portion 7 is detachably engaged with the center portion 3 side, the obstruction plug 1 can be cleaned by separating the positioning fitting portion 7, thereby improving sanitation. is there.

Fifth, the container 23 of the first embodiment can discharge the liquid from the drain port 21 by removing the blockage 拴 1 from the drain port 21 when replacing the liquid stored inside. This eliminates the need to tilt the container 23 by hand to discharge the liquid inside, or to tilt and raise the container 23 to discharge the liquid, thereby facilitating the discharge operation and reducing labor. In addition, it is possible to reliably prevent the liquid from being scattered at the time of discharge and overflow from the sink of the sink. Further, when a predetermined object in the container 23 is to be washed while simultaneously injecting and discharging the water into and from the container 23, there is no need to overflow the liquid from the upper opening end of the container 23. Since the liquid can be discharged from the drain port 21 at the bottom of the container 23, the time and the amount of liquid at the time of washing and the like can be reduced.

Sixth, since the container 23 of the first embodiment has a drain port 21 with a closed port 1, it can be installed and used in a sink or the like of a sink in a timely manner without using a double sink structure. Since it can perform the function of a double sink, it is possible to reduce the size of a sink or the like. In the double sink structure, When cleaning a given object using one of the two sinks, the given object must be moved between the sinks, which complicates the work.However, such a problem can be solved. it can.

Seventh, since the bottom of the container 23 of the first embodiment in which the drain port 21 is open is formed on an inclined surface that descends toward the drain port 21 side, the container Unnecessary residue in the container 23 can be reliably prevented.

Eighth, the container 23 of the first embodiment is formed with a leg 26 for separating the downstream opening end of the drain port 21 from the installation surface at the time of installation, and the downstream side of the drain port 21 is formed. The structure is such that the open end of the liquid is separated from the installation surface, so that the liquid discharged from the liquid drain port 21 stays between the downstream open end of the drain port 21 and the installation surface. As a result, appropriate and quick discharge from the drain 21 can be achieved.

Eighth, in the container 23 of the first embodiment, since the connector 6 is connected to the plug 1, when the drain port 21 is opened, the connector 6 is pulled to pull the plug 1 to the drain port 21. It is possible to easily remove the drain port 21 when opening it and to reduce labor.

Further, by connecting the free end side of the connector 6 to a predetermined location, the trouble of searching for the obstruction plug 1 that may be confused is not required, and the obstruction plug 1 can be prevented from being lost.

FIG. 5 is a perspective view showing an obturator according to a second embodiment of the present invention, FIG. 6 is a sectional view showing an obturator according to a second embodiment thereof, and FIG. It is sectional drawing which shows the time of closure.

In the closure plug 1 of the second embodiment, the positioning fitting portion 7 is formed in a tapered shape that gradually narrows from the center portion 3 side toward the opening portion 2 side. The tapered surface 7 C of the female fitting portion 7 is in contact with the opening end of the drain port 21.

As shown in FIG. 6 and the like, a sealed space 9 is formed inside the positioning fitting portion 7 so as to be able to communicate with the outside, and the taper surface ΊC side expands and contracts due to a pressure change in the sealed space 9. I have. Therefore, unlike the first embodiment described above, the positioning fitting portion 7 is formed flexibly by an elastic material such as a synthetic resin such as vinyl chloride. In the second embodiment, a commercially available suction cup is used to form a hat-shaped bowl or bowl.

Since the positioning fitting portion 7 is formed to be flexible, the closed space 9 can communicate with the outside. That is, at all times, the closed space 9 is formed by the outer peripheral end on the inner peripheral surface side of the positioning fitting portion 7 being in close contact with the peripheral surface of the outer peripheral wall portion 4, while the positioning fitting portion 7 The outer peripheral end on the inner peripheral surface side is deformed to generate a slight gap between the outer peripheral end and the inner peripheral surface of the outer peripheral wall portion 4, so that the closed space 9 communicates with the outside.

As in the first embodiment, the engaging female part 7B is formed on the axis of the base end surface of the positioning fitting part 7, while the engaging female part 7B is formed on the axis of the inner peripheral surface of the central part 3. The male part 3A is projected, and the male part 3A for engagement is fitted to the female part 7B for engagement, and the fitting part 7 for positioning is formed so as to be detachably engaged with the center part 3 side. However, the female female part 7B for engagement is formed deeply so that it can cope with the expansion and contraction of the tapered surface 7C of the fitting part 7 for positioning, such as the opening part 2 and the like. The engaging male part 3A is fitted to the 1111 part 7B with play in the axial direction. The engaging male part 3A moves up and down along the axial direction of the engaging female part 7B with the expansion and contraction of the tapered surface 7C of the positioning fitting part 7.

In other configurations, the second embodiment is the same as the first embodiment. In the second embodiment having such a configuration, the positioning fitting portion 7 is formed in a tapered shape that gradually becomes narrower from the central portion 3 toward the opening 2 side. Since the tapered surface 7C is structured so as to abut the opening end of the drain port 21, it is possible to easily fit the positioning fitting portion 7 into the drain port 21 and to facilitate the positioning. Can be achieved. Furthermore, the positioning accuracy and the watertightness with respect to the drain port 21 at the time of closing can be improved by abutting the tapered surface 7C of the positioning fitting portion 7 on the open end of the drain port 21. In addition, it is possible to absorb the difference in the size of various drains 21.

Further, the taper surface 7C side expands and contracts due to a pressure change in the closed space 9, that is, a pressure change in the closed space 9 due to a change in the pressing force of the liquid in the container 23 onto the stopper 1. As a result, the taper surface 7C expands and contracts in response to the deformation on the flexible opening end side (the taper surface 7C side shrinks as the amount of deformation on the opening end side increases). The watertightness of the drain port 21 at the time of closing by the contact of the tapered surface 7C of the fitting portion 7 with the opening end of the drain port 21 can be further improved.

8 is a perspective view showing an obturator according to a third embodiment of the present invention, FIG. 9 is a cross-sectional view showing an obturator according to a third embodiment thereof, and FIG. 10 is an obturator according to the third embodiment. FIG. 3 is a cross-sectional view showing a state in which the device is closed.

The plug 1 of the third embodiment is smaller than the opening 2 and is coaxially located with the opening 2, a second opening 10, and a flexible second opening of the second opening 10. A second outer peripheral wall portion 12 that closely covers the end 11 and the outer periphery of the central portion 3 is provided, and the opening end side of the opening portion 2 and the second opening end 11 side are formed on the opening wall surface 22. A second closed space 13 that can communicate with the outside by being in close contact is formed between both the opening end side of the opening 2 and the second opening end 11 side. 2nd opening Since the end 11 is formed flexibly, the second closed space 13 can communicate with the outside. That is, at all times, the outer peripheral end on the inner peripheral surface side of the positioning fitting portion 7 and the second opening end 11 are in close contact with the opening wall surface 22 to form the second closed space 13. Either the outer peripheral end on the inner peripheral surface side of the positioning fitting portion 7 or the second open end 11 or both of them are deformed and between the outer peripheral end or the second open end 11 and the open wall surface. The second closed space 13 is formed as a top that communicates with the outside due to a slight gap.

The second outer peripheral wall portion 12 in the third embodiment is formed of an elastic material of a synthetic resin such as vinyl chloride. Further, it is formed in a hat shape or a bowl shape by a commercially available suction cup, and a positioning fitting portion is formed in the central portion 3 via the second central portion 3 of the second outer peripheral wall portion 12.

In the third embodiment, the engaging male portion 3A projecting from the axis of the inner peripheral surface of the central portion 3 is formed by the second central portion 3 of the second outer peripheral wall portion 12 and the positioning fitting portion 7. By being fitted to the engaging female portions 7B, 7B on the shaft center on the shaft center of the base end surface, the positioning fitting portion 7 through the central portion of the second outer peripheral wall portion 12 is formed. Is formed in the central part 3.

In other configurations, the third embodiment is similar to the first embodiment. According to the closure # 1 of the third embodiment, the second closed space 13 can be blocked by the suction function accompanying the pressure reduction. The pressure reduction during the adsorption of the second closed space 13 may be performed by pressing the blockage 1 against the opening wall surface 22, or may be performed by pressing the liquid pressure injected into the container 23. It may be done.

Further, in the above-mentioned plug 1 described in Utility Model Publication No. 96419 of 1980, the suction cup portion is formed to the outer peripheral side of the plug 1 main body. Therefore, there is a problem that the obturator plug itself becomes large, but in the third embodiment, since the second closed space 13 as a suction cup is formed only inside the obturator plug 1, 1 can be downsized.

FIG. 11 is a perspective view showing an obturator according to a fourth embodiment of the present invention, and FIG. 12 is a sectional view showing the obturator according to the fourth embodiment when the obturator is closed.

The plug 1 of the fourth embodiment has a first suction cup 31 having an opening 2 larger than the upstream drain port 21 to be closed, and an opening larger than the downstream drain port 21 to be closed. As shown in FIG. 12, the first suction cup 31 is adsorbed on the opening wall 22 on the upstream side of the drain port 21, and the second suction cup 32 is The structure is such that the drain port 21 is closed by being adsorbed to the opening wall 22 on the downstream side of the drain port 21. The material of the first suction cup 31 and the second suction cup 32 is made of a synthetic resin elastic material such as vinyl chloride. It is formed in a hat shape or bowl shape by a commercially available suction cup.

When using the obstruction 拴 1, the first suction cup 31 and the second suction cup 32 are simultaneously adsorbed on the opening wall 22 on both the upstream and downstream drain ports 21 so that the upstream and the downstream Cover and close the drain port 21.

Also in the plug 1 of the fourth embodiment, a long structure such as a plug that is tightly fitted to the drain port 21 and closed is unnecessary, and the outer peripheral surface of the plug 1 and the inside of the drain port 21 are unnecessary. The surrounding surface is hard to get dirty and sanitary. Further, it is possible to improve the watertightness of the drain port 21 at the time of blockage by the adsorption function.

FIG. 13 is a perspective view showing a blockage ある which is a fifth embodiment of the present invention, FIG. 14 is a sectional view showing a blockage 拴 which is a fifth embodiment, and FIG. 15 is a blockage which is a fifth embodiment. FIG. 4 is a cross-sectional view showing a state where the stopper is closed.

The plug 1 of the fifth embodiment is the same as the plug 1 of the second embodiment described above. The second positioning fitting portion 7 is formed. The second positioning insertion portion 7 may be a cylindrical member as shown by a solid line in FIG. 13 or a plurality of rods or strips arranged along the cylindrical shape as shown by a broken line in FIG. It is formed by a obi member.

According to the closure plug 1 of the fifth embodiment, since such a second positioning fitting portion 7 is formed, the positioning of the closure plug 1 at the time of closing can be performed more reliably.

Although the invention made by the inventor has been specifically described based on the embodiment, the invention is not limited to the embodiment, and it can be said that various modifications can be made without departing from the gist of the invention. Not even.

For example, although the plug 1 of the above embodiment is made of a synthetic resin, the plug of the present invention is not limited to such a synthetic resin.

Further, the shape of the plug 1 of the present invention is not limited to the shape of the above embodiment.

Furthermore, although the connecting tool 6 in the obstruction plug 1 of the above embodiment is formed by a ball chain or the like, the connecting tool of the present invention is not limited to such a connecting tool such as a ball chain. Industrial applicability (Effect of the invention)

The effects obtained by typical aspects of the invention disclosed in the present application will be briefly described as follows.

(1) According to the above-described plug of the present invention, an opening that is larger than the drainage port on the upstream side that is to be closed is located opposite to the opening at a predetermined distance from the opening, and the center of the opening is A central portion formed at an opening end of the opening and an outer periphery of the central portion An outer peripheral wall portion that covers the surrounding space closely, wherein the central portion is opposed to the drain port at a predetermined distance, and the opening end side is in close contact with the opening wall surface of the drain port. And a positioning fitting portion protruding from the center portion side toward the opening portion and coaxially positioned with respect to both of the drainage holes. Since the positioning portion is inserted into the drainage port so as to perform positioning at the time of closing, the central portion is opposed to the drainage port at a predetermined distance, and the opening end side is located at the center. The drain port can be closed by being in close contact with the opening wall surface of the drain port, and a positioning fitting portion protruding toward the opening side and positioned coaxially with both the central portion and the opening portion. Because it has The positioning of the closing plug at the time of closing can be accurately performed by fitting the positioning fitting portion into the drain port. As a result, a long structure such as an obturator plug that is tightly fitted to the drain port and closed is not required, and the outer peripheral surface of the obturator plug and the inner peripheral surface of the drain port are less likely to become dirty and sanitary. In addition, since the position of the plug is accurately determined, the hydraulic pressure applied to the outer peripheral surface of the plug when the drain port is closed can be made uniform, which can ensure and stabilize the plug. . The plug according to the present invention has a structure in which the positioning insertion portion is inserted into the drain port. However, since the positioning insertion portion is for positioning the plug, the positioning plug is in close contact with the drain port. Fitting and unnecessary length are not required.

(2) The obstruction (2) of the present invention can solve the problem that it is difficult to remove from the drain port due to close fitting to the drain port.

(3) Since the closure (2) of the present invention can accurately perform positioning at the time of closure by the positioning fitting portion, the closure plug described in the above-mentioned Utility Model Publication No. It is not necessary to form the opening end side large as described above to achieve convenience when closing, and to reduce the size of the opening end side and thereby the size of the plug itself. be able to.

(4) The plug according to the present invention can reliably prevent movement of the plug during closing due to its own weight of the positioning fitting portion and fitting of the positioning fitting portion into the drain port, thereby ensuring closure. And stabilization.

(5) In the case described above, at least the opening end side is formed to be flexible, and the opening end side is deformed by hydraulic pressure that blocks discharge from the drain port, whereby the opening on the opening end side is deformed. If the structure is designed to increase the degree of closeness to the wall, it is possible to increase the degree of closeness to ensure and stabilize the obstruction.

(6) In the case described above, if the positioning fitting portion is formed so as to be detachably engaged with the center portion side, the blocking plug can be cleaned by separating the positioning fitting portion, thereby improving sanitation. It is a target. '

(7) In the case described above, the positioning fitting portion is formed in a tapered shape that gradually narrows from the central portion side to the opening portion side, and when closed, the taper surface of the positioning fitting portion is formed. When the structure is in contact with the opening end of the drainage port, the positioning fitting portion can be easily fitted into the drainage port, and the convenience in positioning can be improved. Further, by abutting the tapered surface of the positioning fitting portion to the open end of the drain port, it is possible to improve the positioning accuracy and the watertightness of the drain port when closed. In addition, it is possible to absorb differences in the size of various drains.

(8) In the above case, if a structure is adopted in which a sealed space capable of communicating with the outside is formed inside the positioning fitting portion and the taper surface side expands and contracts due to a pressure change in the sealed space, a flexible opening is provided. The taper side expands and contracts in response to the deformation on the end side.

(As the amount of deformation on the opening end side increases, the taper side decreases.) As a result, It is possible to further improve the watertightness of the drainage port at the time of closing by the contact of the tapered surface of the positioning fitting portion with the opening end of the drainage port.

(9) In the above case, a second opening smaller than the opening and coaxial with the opening, a flexible second opening end of the second opening, and an outer periphery of the central portion. A second outer peripheral wall portion that covers the space closely, and a second sealed space that can communicate with the outside when the opening end side and the second opening end side are in close contact with the opening wall surface is provided therebetween. With this structure, the second closed space can be closed by the suction function due to the reduced pressure. In the plug described in Utility Model Publication No. 964 419 published in 1980, the suction cup is formed up to the outer peripheral side of the plug body, which causes a problem of increasing the size of the plug itself. However, in the present invention, the second closed space, which is the suction cup, is formed only on the inner side of the plug, so that the plug can be miniaturized.

(10) According to the above-described plug of the present invention, the first suction cup having an opening larger than the upstream drain port to be closed, and the second suction port having an opening larger than the downstream drain port to be closed. A structure in which the first suction cup is adsorbed on the opening wall surface on the upstream side of the drain port, and the second suction cup is adsorbed on the opening wall surface on the downstream side of the drain port, whereby the drain port is closed. This eliminates the need for a long structure such as an obturator plug that fits tightly into the drain port and closes it, and the outer peripheral surface of the obturator plug and the inner peripheral surface of the drain port are less likely to become dirty and sanitary. . In addition, it is possible to improve the watertightness of the drainage port at the time of blockage due to the adsorption function.

(11) According to the container of the present invention described above, a container having any one of the above-described plugs, and having a structure in which the drain port is closed by the plug, has the effect of the plug. On the other hand, when replacing the liquid stored inside, the liquid can be removed by removing the plug from the drain port. Can be drained from the drain port, eliminating the need for tilting the container by hand to discharge the liquid inside, or tilting the container while lifting to tilt and discharging the liquid. It is possible to reduce the amount of labor and labor, and to reliably prevent the liquid from scattering at the time of discharge and overflow from the sink of the sink. Furthermore, in the case where a predetermined object in the container is washed while simultaneously injecting and discharging water into the container, there is no need to overflow the liquid from the upper opening end of the container, and the liquid is discharged from the bottom of the container. As a result, the time and the amount of liquid during washing can be reduced.

(12) According to the container of the present invention described above, since it has a drain port with an obstruction plug, it can be installed and used in a sink of a sink, etc., as appropriate, so that a double sink structure can be achieved without using a double sink structure. Since the function can be performed, the size of the sink can be reduced. Also, in a double-sink structure, when using both sinks to wash a predetermined object, the predetermined object must be moved between the sinks, which complicates the work. Problems can be solved.

(13) In the case described above, any one of the above-mentioned plugs is provided, and the drain port is closed by the plug, and the bottom with the drain port opened is inclined downward toward the drain port side. With the structure formed on the surface, in addition to having the above-described effects of the container of the present invention, it is possible to reliably prevent unnecessary residual liquid from being discharged into the container.

(14) In the case described above, any one of the above-described plugs is provided, and the drain plug is closed by the plug, and at least the downstream end of the drain port is separated from the installation surface at the time of installation. Assuming a structure in which the legs are formed, in addition to having the above-described effects of the container of the present invention, the opening end on the downstream side of the drainage port is installed. As a result, the liquid discharged from the liquid discharge port can be reliably prevented from staying between the opening end on the downstream side of the discharge port and the installation surface. And speeding up.

(15) In the above case, if any one of the above-described plugs is provided, and the drainage port is closed by the plugging plug, and a connecting member is connected to the plugging plug, when the drainage port is opened, Since the plug can be removed from the drain port by pulling the connecting tool, the opening of the drain port can be facilitated and the labor can be reduced.

In addition, by connecting the free end side of the connector to a predetermined location, it is not necessary to search for an obstruction plug that may be confused, and it is possible to prevent the obstruction plug from being lost.

Claims

The scope of the claims

1. An opening that is larger than the drainage port on the upstream side to be closed, a central portion that is located opposite to the opening at a predetermined distance from the opening, and is formed at the center of the opening, An open end and an outer peripheral wall portion that closely covers the outer periphery of the central portion, wherein the central portion is located opposite to the drain port at a predetermined interval, and the open end side is An obturator plug capable of closing the drain port by closely contacting the opening wall surface of the drain port, protruding from the central portion toward the opening portion, and coaxially positioned with respect to both. An obstruction plug comprising a positioning insertion portion, wherein the positioning insertion portion is inserted into the drain port to determine the position at the time of closing.

2. At least the opening end side is formed to be flexible, and the opening end side is deformed by the liquid pressure that blocks the discharge from the drain port, so that the degree of close contact of the opening end side with the opening wall surface is increased. The obturator according to claim 1, wherein the obturator is characterized in that:

3. The closure plug according to claim 1, wherein the positioning fitting portion is detachably engaged with the center portion side.

4. The positioning fitting portion is formed in a tapered shape that gradually becomes narrower from the central portion side toward the opening portion. When the positioning fitting portion is closed, the tapered surface of the positioning fitting portion becomes the opening end of the drain port. 4. The plug according to claim 2, wherein the plug is in contact with the plug.

5. The claim according to claim 4, wherein a sealed space capable of communicating with the outside is formed inside the positioning fitting portion, and the taper surface side expands / contracts due to a pressure change in the sealed space. Obstruction plug.

6. A second opening smaller than the opening and coaxial with the opening; A flexible second opening end of the second opening and a second outer peripheral wall that closely covers an outer periphery of the central portion, wherein the opening end side and the second opening end side have the opening. 4. The closure plug according to claim 2, wherein a second sealed space that can communicate with the outside by being in close contact with a wall surface is formed therebetween.

7. A first suction cup having an opening larger than the upstream drain port to be closed, and a second suction cup having an opening larger than the downstream drain port to be closed, wherein the first suction cup is provided with a drain port. A plug according to claim 1, wherein said drain port is closed by adsorbing on an upstream opening wall surface and simultaneously adsorbing said second suction cup on a downstream opening wall surface of said drain port.

8. A plug according to any one of claims 1, 2, 3, 5, 6, and 7 is provided, and the drain plug is closed by the plug. A container characterized by this.

9. A plug according to any one of claims 1, 2, 3, 5, 6, and 7 is provided, and the drain plug is closed by the plug. In addition, a container characterized in that a bottom portion where the drain port is opened is formed on a slope descending toward the drain port side.

10. The plug according to claim 1, 2, 3, 5, 6, or 7, wherein a drain port is closed by the plug. And a leg formed at least at the time of installation to separate an opening end on the downstream side of the drain port from the installation surface.

11. A plug according to claim 1, 2, 3, 5, 6, or 7, wherein the drain plug is closed by the plug. In addition, a container characterized in that a connector is connected to the obturator plug.