JP6821293B2 - container - Google Patents

Description

The present invention relates to a container in which a liquid stored in the container body is ejected from an injection port by pressing the container body.

As a container of this type, for example, there is a nasal irrigator that cleans the inside of the nasal cavity by pouring a cleaning solution through the nostrils. The nasal irrigator includes a container body in which the cleaning liquid is stored and a tubular nozzle having an injection port capable of injecting the liquid in the container body, and the nozzle is inserted into the nasal cavity to press the container body. Then, the cleaning solution can be poured into the nasal cavity for cleaning.

By the way, in this type of nasal irrigation device, a check valve is provided in the nozzle in order to prevent the cleaning liquid sprayed into the nasal cavity from flowing back into the container body through the injection port of the nozzle (for example, Patent Document 1). reference). The check valve described in Patent Document 1 has a tubular shape in which the upper and lower ends open, and the upper end opening is closed by a single material. This check valve is built into the nozzle so that one piece of material faces the injection port of the nozzle and the cleaning liquid in the container body flows in from the lower end opening. The one-sided material is cantilevered on the cylinder wall of the check valve, and when the cleaning liquid flows into the check valve from the lower end opening, the one-sided material receives upward pressure from the inflowing cleaning liquid and opens the upper end opening. The cleaning liquid flows out toward the injection port of the nozzle. When the cleaning liquid in the check valve flows out, the piece material closes the upper end opening of the check valve again. On the other hand, even if the cleaning liquid flows back into the container body from the injection port of the nozzle, the piece material closes the upper end opening of the check valve to restrict the passage of the cleaning liquid, so that the cleaning liquid flows back into the container body. Is prevented.

Patent No. 32029773

In the check valve described in Patent Document 1, since one material is cantilevered and supported by the cylinder wall of the check valve, in order to completely open the one material, at least one material is placed on the one material in the nozzle. A large space with a height corresponding to the diameter of the is required. Therefore, in the case of the check valve described in Patent Document 1, the amount of the cleaning liquid that flows back from the injection port of the nozzle and accumulates in the above space on the check valve (single material) increases, so that the large amount of cleaning liquid causes the container. There is a problem that one piece of the check valve is difficult to open when the cleaning liquid in the main body is injected from the injection port of the nozzle. Further, the check valve described in Patent Document 1 has a problem that it is unsanitary because a large amount of the cleaning liquid once entered the nose and flows back through the injection port is accumulated in the space due to the large space.

Further, in order to vigorously inject the cleaning liquid in the container body from the injection port of the nozzle, it is necessary to make the hinge portion between the check valve piece material and the cylinder wall thin so that the piece material can be easily opened. However, if the hinge portion of one piece is thinned, the strength of the hinge portion is lowered, so that there is a problem that the hinge portion is easily torn and the piece is easily removed when cleaning the check valve. If the hinge portion of one piece is thickened in order to avoid this problem, it becomes difficult for the piece to open, and there is a problem that the piece hinders the momentum of the cleaning liquid toward the injection port of the nozzle.

The present invention has been made to solve the above problems, and is a container that injects a liquid stored inside the container body from a nozzle injection port when the container body is pressed, and is inside the container body. It is an object of the present invention to provide a container provided with a check valve which is hard to be damaged while allowing the liquid stored in the container to flow vigorously toward the injection port of the nozzle.

An object of the present invention is a container body for storing a liquid inside, a nozzle having an injection port for injecting a liquid stored inside the container body when the container body is pressed, and the container body. The check valve is provided between the container and the injection port to prevent the liquid from flowing back into the container body. The check valve has one end closed by an end wall and the other end of the container. It has a tubular shape with an opening for the liquid to flow in from the main body, the end wall faces the injection port via a space, and the end wall is separated by at least one notch and the notch and is elastic. Achieved by a container containing at least two sections that are deformable.

The end wall preferably has a tapered shape.

It is more preferable that the end wall has a dome shape.

The end wall is assumed to have a dome apex on the axis of the check valve.
It is more preferable that the notch passes through the apex of the end wall.

A plurality of notches are formed in the end wall, and it is preferable that the plurality of notches extend radially around the axis of the check valve.

An air hole for allowing air to flow into the container is formed in the container, and an air valve for preventing air from flowing from the inside of the container to the outside of the container is provided in the air hole. , It is more preferable that the check valve is formed integrally with the check valve.

The air valve has an opening at one end for allowing air to flow in from the air hole, and the other end has a tubular shape closed by an end wall, and the end wall has at least one notch and the above. It is more preferred to include at least two sections that are separated by a notch and are elastically deformable.

According to the container of the present invention, the end wall that closes one end of the check valve contains at least one notch and at least two sections that are separated by the notch and are elastically deformable, and the check is stopped by these sections. In addition to closing one end of the valve, each section elastically deforms and opens when the container body is pressed, so that the liquid in the container body can pass through. Therefore, this section has a size capable of closing only a part of the cross section of the check valve, and does not have a large size for closing the entire cross section of the check valve. Therefore, a large space is not required on the end wall in the nozzle for the section to open. Therefore, the amount of liquid that flows back from the injection port of the nozzle and accumulates in the space on the check valve (end wall) can be reduced. Therefore, even if the liquid accumulates in the space, the liquid in the container body is injected by the nozzle. It is possible to prevent the section from becoming difficult to open when sprayed from the mouth. Further, since the space can be made small, the amount of cleaning liquid that flows back from the nose and accumulates in the space can be suppressed to a small amount. Therefore, the container of the present invention is also excellent in hygiene.

In addition, since the intercept is easier to open and has higher strength than the conventional check valve opening / closing lid, it is possible to prevent the intercept from obstructing the momentum of the liquid toward the injection port of the nozzle, and also during cleaning. Also, the section is not easily removed from the check valve.

It is a front view of the container which concerns on embodiment of this invention. It is a right side view of the container of FIG. It is a top view of the container of FIG. FIG. 1 is a sectional view taken along the line AA of FIG. It is a partially enlarged view of FIG. It is a front view of a container body. It is a right side view of the container body of FIG. It is a front view of the container body of FIG. It is a partially enlarged view of FIG. It is a right side view of a lid. It is a front view of the lid of FIG. It is a top view of the lid of FIG. It is a bottom view of the lid of FIG. FIG. 10 is a cross-sectional view taken along the line BB of FIG. FIG. 11 is a sectional view taken along the line CC of FIG. It is a front view of a valve member. It is a top view of the valve member of FIG. It is a bottom view of the valve member of FIG. FIG. 17 is a cross-sectional view taken along the line DD of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The container according to the present invention is provided between a container body for storing a liquid inside, a nozzle having an injection port, and the container body and the injection port, and is a check valve for preventing the liquid from flowing back into the container body. And, by pressing the container body, the liquid stored inside the container body is ejected from the injection port of the nozzle. Examples of this type of container include a nasal irrigator that cleans the inside of the nasal cavity by pouring a cleaning solution through the nostrils. In the following description, an embodiment in which the container is used as a nasal washer will be described.

1 to 3 show the external configuration of the container 1 according to the embodiment of the present invention, and FIG. 4 shows the internal configuration. In the following description, the XY directions of FIGS. 1 and 2 are referred to as the vertical direction, the UV directions of FIGS. 1 and 3 are referred to as the horizontal direction, and the ST directions of FIGS. 2 and 3 are referred to as the front-back direction, respectively. There is. The same applies to FIGS. 6 to 8.

The container 1 according to the present embodiment is integrated with a container body 2 capable of storing a cleaning liquid as a liquid, a lid 3 detachably attached to the container body 2, and a lid 3 so as to protrude upward from the lid 3. The nozzle 4 formed in the container 3, the valve member 6 (FIG. 4) attached to the surface of the lid 3 opposite to the nozzle 4, and the hose 5 extending vertically in the container body 2 and connected to the valve member 6. (Fig. 4).

As the cleaning liquid stored in the container body 2, a saline solution or the like known in this type of nasal irrigation device can be used, but it is preferable to include a fragrance in order to give a refreshing feeling.

Examples of the components of the fragrance include peppermint oil, citrus essential oil, peppermint oil and l-menthol, and at least one selected from the group consisting of peppermint oil and citrus essential oil, peppermint oil and l-menthol. Those prepared in combination can be preferably exemplified. The citrus essential oil can be selected from conventionally known ones, and is not particularly limited, and examples thereof include lemon oil, lime oil, grapefruit oil, orange oil, mandarin oil, and bergamot oil. These citrus essential oils may be used alone or in combination of two or more. The citrus essential oil can be prepared from various citrus fruits by a conventionally known method such as a steam distillation method or a solvent extraction method, or a commercially available one can be used.

As the mint oil, those obtained by the above-mentioned essential oil preparation method can be used, or commercially available ones can be used. As the peppermint oil, those obtained by the above-mentioned essential oil preparation method can be used, or commercially available ones can also be used. As for l-menthol, commercially available ones can also be used.

As shown in FIGS. 6 to 9, the container body 2 is provided with a cylindrical neck portion 21 having an opening 20 at the upper end and a hollow and bottomed body portion 22 which is continuously provided on the neck portion 21 and can store a cleaning liquid. And have. The material of the container body 2 is not particularly limited, but it is preferably formed of a flexible or elastic synthetic resin or the like, and is blow-molded using, for example, polyethylene, polypropylene, polyethylene terephthalate or the like. It can be formed by injection molding or the like. The thickness of the container body 2 is preferably 0.7 mm to 1.3 mm, more preferably 0.8 mm to 1.0 mm. It is preferable that a part or the whole of the container body 2 is transparent or translucent, so that the remaining amount of the cleaning liquid inside the container body 2 can be confirmed from the outside. As shown in FIG. 4, the bottom surface 22E of the container body 2 (body 22) has a central portion recessed upward, which enables the container body 2 to be stably placed on a horizontal table. There is.

A male screw 23 having a spirally rotating screw thread is formed on the outer peripheral surface of the neck portion 21. By fastening the male screw 23 with the female screw 32 formed on the lid 3 described later, the neck portion 21 and the lid 3 are connected to each other.

The body portion 22 is formed in a substantially rectangular shape in a plan view having a larger plan view shape than the neck portion 21, and has a front surface 22A, a back surface 22B, a left side surface 22C, and a right side surface 22D connected in a tubular shape. In the present embodiment, the body portion 22 is formed in a rounded shape with rounded corners in a plan view. Further, in the present embodiment, the body portion 22 has a flat shape in which the lateral widths of the left and right side surfaces 22C and 22D (the length of ST in the front-rear direction) are shorter than the lateral widths of the front surface 22A and the back surface 22B (the length of UV in the left-right direction). Is formed in. This makes it easier to grip the container body 2 with the fingers of the hand. Further, during use, by pressing the front surface 22A and the back surface 22B of the container body 2, it is possible to push out a large amount of cleaning liquid.

The front surface 22A and the back surface 22B of the body portion 22 have the following shapes when viewed from the top, bottom, front and back. That is, the front surface 22A and the back surface 22B are flat along the vertical direction XY as shown in FIG. 7, while the front surface 22A and the back surface 22B are between the corners 22F and 22F along the horizontal UV as shown in FIG. It is formed in a shape that gently protrudes outward. The term "flat" refers to extending in a straight line, but it does not necessarily have to be strictly flat, and slight dents and bulges are allowed. In this embodiment, FIG. 7 shows. As shown, the front surface 22A and the back surface 22B have a slightly outwardly convex shape along the vertical direction XY.

On the other hand, the left and right side surfaces 22C and 22D of the body portion 22 have the following shapes when viewed from the top, bottom, front and back. That is, the left and right side surfaces 22C and 22D have a large outward convex shape along the vertical direction XY as shown in FIG. 6, while the angle 22F is formed along the front-rear direction ST as shown in FIG. It is formed in a flat shape between the corners 22F.

In this way, the left and right side surfaces 22C and 22D of the body portion 22 form a large convex shape outward along the vertical direction XY, so that the front surface 22A and the back surface 22B of the container body 2 are pressed during use. As the pushing force generated at the time of the movement is transmitted to the apex of the convex portion, the container body 2 is deformed, and the container body 2 can be effectively pressed. In addition, the design of the container body 2 can be improved. Further, since the front surface 22A and the back surface 22B of the body portion 22 are flat along the vertical direction XY, it is easy to grasp the container body 2 when the container body 2 is gripped by a plurality of fingers of the hand, and when in use. It is easy to press the front surface 22A and the back surface 22B with a plurality of fingers.

The front surface 22A and the back surface 22B do not necessarily have to be formed in the above-mentioned shape, and have a shape that is greatly convex outward along the left-right direction UV or a flat shape even along the left-right direction UV. It may be formed in an eggplant shape. Further, the left and right side surfaces 22C and 22D do not necessarily have to be formed in the above-mentioned shape, and may be formed in a shape that is convex outward even along the front-rear direction ST.

The heights of the front surface 22A and the back surface 22B are not particularly limited, but when three fingers (for example, index finger, middle finger, and ring finger) of the hand are arranged in the vertical direction XY, the three fingers fit. It is preferable to have a certain height. Further, the width of the front surface 22A and the back surface 22B is not particularly limited, but it is preferable that the width width is such that the fingertips of the three fingers to the second joint can be accommodated. As a result, it is easy to grasp the container body 2 when it is gripped by a plurality of fingers of the hand, and it is easy to press the front surface 22A and the back surface 22B with a plurality of fingers during use.

Further, the front surface 22A and the back surface 22B are provided with marks 25 extending in the left-right direction UV. The mark 25 serves as a guideline for the height of the liquid level when the cleaning liquid is added into the container body 2. In the present embodiment, two marks 25 are formed on the front surface 22A and the back surface 22B at intervals in the vertical direction XY, but one mark 25 may be formed on the front surface 22A and the back surface 22B. Alternatively, three or more marks 25 may be formed at intervals in the vertical direction XY. Further, the surface on which the mark 25 is formed is not limited to the front surface 22A and the back surface 22B, and the mark 25 may be formed on any one or more of the front surface 22A, the back surface 22B, the side surface 22C, and the side surface 22D.

As shown in FIGS. 1 to 5 and 10 to 15, the lid 3 has a top surface portion 30 formed in a circular shape in a plan view and a tubular side surface portion 31 hanging from the outer peripheral edge of the top surface portion 30. I have.

A female screw 32 having a screw thread that goes around in a spiral shape is provided on the inner peripheral surface of the side surface portion 31. The lid 3 is attached to the neck 21 by fastening the female screw 32 to the male screw 23 provided on the outer peripheral surface of the neck 21 while rotating the lid 3 in one direction with respect to the neck 21 of the container body 2. , The opening 20 of the neck portion 21 is covered with the lid 3, and the cleaning liquid in the container body 2 is sealed.

A knurl 34 is provided on the outer peripheral surface of the side surface portion 31 so as to facilitate the rotation operation of the lid 3.

On the lower surface of the upper surface portion 30, a tubular inner ring 35 is provided concentrically with the side surface portion 31 so as to protrude from the lower surface. Further, around the inner ring 35, an annular contact ring 36 having a height lower than that of the inner ring 35 is provided concentrically so as to protrude from the lower surface of the upper surface portion 30.

The inner ring 35 has an outer diameter substantially the same as the inner diameter of the neck portion 21 of the container body 2, and when the lid 3 is attached to the neck portion 21, the outer peripheral surface thereof becomes the inner peripheral surface of the neck portion 21. Contact. As a result, the space between the neck portion 21 of the container body 2 and the inner ring 35 can be hermetically sealed, and the cleaning liquid in the container body 2 is prevented from leaking from between the neck portion 21 and the lid 3.

The contact ring 36 is provided on the lower surface of the upper surface portion 30 at a position facing the upper surface of the neck portion 21 when the lid 3 is attached to the neck portion 21 of the container body 2. When the lid 3 is attached to the neck portion 21, the contact ring 36 comes into contact with the upper surface of the neck portion 21, so that the upper surface portion 30 of the lid 3 and the neck portion 21 of the container body 2 can be sealed in a liquid-tight manner. it can. Therefore, the inside of the container body 2 can be more effectively and liquid-tightly sealed. In the present embodiment, the shape of the contact ring 36 is formed in a mountain shape having a sharp top in a cross-sectional view, but the top may be a round mountain shape in a cross-sectional view, and the upper surface such as a rectangular shape in a cross-sectional view. It may be formed in various shapes as long as it protrudes from the lower surface of the portion 30.

Further, an air hole 50 is formed in the upper surface portion 30 of the lid 3. The air hole 50 penetrates the upper surface portion 30 up and down. A cylindrical tubular body 51 projects from the lower surface of the upper surface portion 30 of the lid 3 so as to surround the air hole 50. The tubular body 51 is located inside the inner ring 35.

The nozzle 4 is integrally provided on the upper surface portion 30 of the lid 3 so as to protrude upward. In the present embodiment, since the nozzle 4 is integrally formed with the lid 3, the lid 3 and the nozzle 4 are not composed of a large number of parts.

The nozzle 4 is formed in a substantially cylindrical shape, and has a space 46 extending in the vertical direction inside the nozzle 4. The lower end opening of the nozzle 4 (space 46) is located inside the inner ring 35 of the lid 3.

An injection port 43 is formed on the upper end surface of the nozzle 4, and the cleaning liquid flowing upward in the space 46 is injected from the injection port 43. In this embodiment, three injection ports 43 are provided, but at least one may be provided. However, it is preferable that a plurality of injection ports 43 are provided because the cleaning liquid can be sprayed over a wide range into the nasal cavity and can be evenly distributed in the nasal cavity. Further, when a plurality of injection ports 43 are provided on the upper end surface of the nozzle 4, it is preferable to provide them point-symmetrically with respect to the center position of the upper end surface. As a result, the cleaning solution can be more evenly distributed in the nasal cavity.

The shape of the injection port 43 is not particularly limited, but in the present embodiment, the shape is such that the diameter increases toward the upper end of the nozzle 4 (reverse taper shape). As a result, the spraying area of the cleaning liquid can be expanded, so that the cleaning liquid can be more effectively and widely sprayed into the nasal cavity. The diameter of the injection port 43 (the diameter of the lowermost portion in the vertical direction XY among the inverted tapered portions) is not particularly limited, but is preferably 1.0 mm to 3.0 mm, preferably 1.0 mm to 3.0 mm. 2.0 mm is more preferable, 1.0 mm to 1.8 mm is more preferable, and 1.5 mm in this embodiment. As a result, when the cleaning liquid is sprayed, an appropriate amount of the cleaning liquid can be sprayed, and the inside of the nasal cavity can be cleaned more effectively. The inclination angle α of the injection port 43 is not particularly limited, but is preferably 3 ° to 10 °, and is 5 ° in the present embodiment. In the present embodiment, the injection port 43 has a diameter-expanded portion 45 formed so as to rapidly expand the diameter at an inclination angle larger than the inclination angle α in the vicinity of the upper end of the nozzle 4. The radius of curvature R of the enlarged diameter portion 45 is not particularly limited, but is preferably 0.1 mm to 1.0 mm, more preferably 0.1 mm to 0.7 mm, and even more preferably 0.1 mm to 0.5 mm. , 0.2 mm to 0.4 mm is even more preferable, and in this embodiment, it is 0.3 mm. By forming the enlarged diameter portion 45 in this way, when the cleaning liquid is injected from the injection port 43, the cleaning liquid is diffused and discharged instead of being linear, and the inside of the nasal cavity can be cleaned more effectively. ..

The outer shape of the nozzle 4 is formed in a shape that tapers toward the upper end so that it can be easily inserted into the nasal cavity from the outer nostril. In the present embodiment, the upper portion 40 of the nozzle 4 has a large degree of tapering and the taper is steep, whereas the intermediate portion 41 and the lower portion 42 have a degree of tapering. Is small and tapers gently. The upper portion 40 refers to a predetermined portion on the lower side from the upper end of the nozzle 4.

The nozzle 4 is provided on the upper surface portion 30 of the lid 3 at a position deviated from the center position C (eccentric position), that is, at a position closer to the outer peripheral edge portion than the center position C. The outer peripheral edge portion refers to a corner portion between the upper surface portion 30 and the side surface portion 31. Here, if the nozzle 4 is provided at the center position C of the upper surface portion 30 of the lid 3, when the nozzle 4 is inserted into the nasal cavity through the outer nostril, the outer peripheral edge portion of the lid 3 is the face (nose and mouth). There is a problem that it is difficult to use in the meantime. On the other hand, when the nozzle 4 is provided at a position deviated from the center position C of the upper surface portion 30 of the lid 3, the container body 2 is gripped so that the nozzle 4 is in front, and the nozzle 4 is inserted into the outer nostril. By inserting the lid 3 into the nasal cavity, the outer peripheral edge of the lid 3 does not hit the face (between the nose and mouth), and the usability can be improved. The nozzle 4 is located on the front surface 22A side or the back surface 22B side of the container body 2 (body 22) when the lid 3 is attached to the neck portion 21 of the container body 2. It is preferable to be provided in.

The materials of the lid 3 and the nozzle 4 described above are not particularly limited, but are preferably formed of a flexible or elastic synthetic resin, for example, polyethylene, a thermosetting elastomer, or a thermoplastic elastomer. It can be formed by injection molding or the like using the above.

As shown in FIGS. 4, 5, 16 to 19, the valve member 6 is formed of an elastic material such as a silicone resin, a thermoplastic elastomer, or a thermosetting elastomer, and has a size that fits inside the inner ring 35. It is composed of a disk-shaped base 60, and two tubular check valves 70 and an air valve 80 having different lengths integrally provided on the base 60 so as to penetrate the base 60.

The check valve 70 has a tubular shape with an upper end closed by a tapered end wall 71 and an opening 74 at the lower end. The end wall 71 protrudes above the base 60. The lower end of the check valve 70 protrudes below the base 60.

The end wall 71 has a dome shape, and the top portion 71a of the dome is located on the axis J of the check valve 70. The end wall 71 is formed with four notches 72a, 72b, 72c, 72d that pass through the top 71a. The notches 72a, 72b, 72c, 72d extend radially around the top 71a (axis J) of the check valve 70. The cuts 72a, 72b, 72c, and 72d are formed in 90 ° increments around the axis J of the check valve 70, and each of the cuts 72 extends from the top 71a of the end wall 71 to the upper end of the base 71b of the end wall 71. Extend. By inserting the above-mentioned cuts 72a, 72b, 72c, 72d into the end wall 71, the end wall 71 is separated by the cuts 72a, 72b, 72c, 72d and four elastically deformable sections 73a, 73b, 73c and 73d are formed. Each of the sections 73a, 73b, 73c, and 73d has a line along the base 71b of the end wall 71 as a base, and the apex on the opposite side to the base is on the axis J of the check valve 70. When the cleaning liquid flows into the check valve 70 from the lower end opening 74, the sections 73a, 73b, 73c, 73d are elastically deformed by receiving upward pressure from the cleaning liquid and flexing outward, so that the cuts 72a, 72b, 72c , 72d opens. As a result, the cleaning liquid can pass through the end wall 71, and the cleaning liquid flows out toward the injection port 43 of the nozzle 4. When the cleaning liquid in the check valve 70 flows out, the sections 73a, 73b, 73c, 73d undergo elastic deformation that bends inward due to the restoring force. As a result, the cuts 72a, 72b, 72c, 72d are closed, and the upper end of the check valve is closed again by the end wall 71. The elastic deformation of these sections 73 has the base along the base 71b as a fulcrum and the apex on the axis J of the check valve 70 as the tip of the deflection.

The air valve 80 has an opening 84 at the upper end and has a tubular shape whose lower end is closed by a tapered end wall 81. The end wall 81 protrudes below the base 60.

The end wall 81 has a shape called a duck building. A notch 83 extending in the width direction is formed at the lower end of the end wall 81. By inserting the notch 83 into the lower end of the end wall 81, the end wall 81 is separated by the notch 83 and elastically deformable sections 82a and 82b are formed. The sections 82a and 82b are closer to each other as they go downward, and are bent inward (approaching direction) or outward (separating direction) by the pressure of air. Then, when the inward bending occurs, the notch 83 closes, and when the outward bending occurs, the notch 83 opens.

As shown in FIGS. 4 and 5, the valve member 6 is attached to the lid 3 by fitting the base 60 into the inner ring 35 of the lid 3. At this time, the check valve 70 is fitted into the space 46 of the nozzle 4 from below, so that the end wall 71 faces the injection port 43 via the space 46. Further, by fitting the tubular body 51 into the air valve 80 through the upper end opening 84 of the air valve 80, air from the air hole 50 can flow into the air valve 80.

The hose 5 is formed in a tubular shape by a flexible material such as a thermosetting elastomer, a thermoplastic elastomer, or a polyolefin resin. As shown in FIGS. 4 and 5, the upper end of the hose 5 is inserted and connected into the check valve 70 from the lower end opening 74 of the check valve 70. The length of the hose 5 is set so that the lower end of the hose 5 reaches the vicinity of the bottom surface 22E of the container body 2. As a result, even if the amount of cleaning liquid in the container body 2 becomes small, the cleaning liquid can be supplied to the check valve 70 by the hose 5.

Although the hose 5 is shaped so as to extend straight as a whole in FIG. 4, it may be shaped so as to be bent at a predetermined position to form a dogleg shape as a whole. In this case, the length of the hose 5 is such that the upper end of the hose 5 is inserted and connected into the check valve 70 and the lower end of the hose 5 reaches the corners of the front surface 22A and the bottom surface 22E of the container 2. Set. When the lower end of the hose 5 reaches the above-mentioned corner of the container 2, the container 2 is tilted toward the front (front 22A side) when the amount of the cleaning liquid in the container body 2 becomes small due to use. By storing the remaining cleaning liquid in the corner of the container 2, the remaining cleaning liquid can be reliably supplied to the check valve 70 by the hose 5.

When using the container 1 configured as described above, the cleaning liquid is injected into the container body 2, the lid 3 is attached to the container body 2, and then the nozzle 4 is inserted into one nasal cavity of the nose. Then, the body 22 of the container body 2 is gradually pressed to compress the container body 2. As a result, the air pressure in the container 1 is increased, and the cleaning liquid in the container body 2 flows into the check valve 70 through the hose 5. Then, the sections 73a, 73b, 73c, and 73d flex outward due to elastic deformation due to the flow (pressure) of the cleaning liquid flowing into the check valve 70. As a result, the cuts 72a, 72b, 72c, and 72d are opened, and the cleaning liquid in the check valve 70 flows upward through the space 46 in the nozzle 4 and is injected from the injection port 43. The sprayed irrigation solution flows into the nasal cavity and is exhaled from the other nasal cavity of the nose to clean the nasal cavity.

Further, when the container body 2 is pressed, the air pressure in the container 1 is increased, so that the sections 82a and 82b of the air valve 80 are elastically deformed inward, and the notch 83 is closed. This prevents the air inside the container 1 from flowing to the outside of the container 1 through the air holes 50. In this way, when the air pressure in the container 1 is increased, it is prevented that the air escapes from the air valve 80 to the outside of the container 1. Therefore, this air pressure allows the cleaning liquid to flow into the check valve 70. it can.

On the other hand, when the pressing of the container body 2 is released, the sections 73a, 73b, 73c, 73d are elastically deformed inward due to the restoring force, and the cuts 72a, 72b, 72c, 72d are closed. As a result, the cleaning liquid existing in the space 46 and the cleaning liquid flowing back from the injection port 43 do not flow into the check valve 70, so that the cleaning liquid is prevented from flowing back into the container body 2.

Further, when the pressure of the container body 2 is released, the pressure of the air flowing into the air valve 80 from the air hole 50 causes outward elastic deformation of the sections 82a and 82b of the air valve 80. As a result, the notch 83 is opened, the air flowing in from the air hole 50 flows into the container body 2, and the compressed container body 2 expands and returns to the original shape. As a result, the container body 2 can be repeatedly pressed to inject the cleaning liquid from the injection port 43 of the nozzle 4 again to clean the nasal cavity.

According to the present embodiment, the end wall 71 that closes the upper end of the check valve 70 is separated by notches 72a, 72b, 72c, 72d and notches 72a, 72b, 72c, 72d, and elastically deformable sections 73a, 73b, 73c, 73d and the like are included. Then, these sections 73a, 73b, 73c, 73d close the upper end of the check valve 70, and when the container body 2 is pressed, each section 73 elastically deforms and opens to release the cleaning liquid in the container body 2. It is possible to pass through. Therefore, the sections 73a, 73b, 73c, 73d have a size capable of closing only a part of the cross section of the check valve 70, and a large size such as closing the entire cross section of the check valve 70. I don't have it. Therefore, it is not necessary to increase the space 46 above the end wall 71 in the nozzle 4 in order for the sections 73a, 73b, 73c, 73d to open. Therefore, the amount of the cleaning liquid that flows back from the injection port 43 of the nozzle 4 and accumulates in the space 46 on the check valve 70 (end wall 71) can be reduced, so that even if the cleaning liquid is accumulated in the space 46, the inside of the container body 2 It is possible to prevent the sections 73a, 73b, 73c, and 73d from becoming difficult to open when the cleaning liquid of Nozzle 4 is injected from the injection port 43 of the nozzle 4. Further, by making the space 46 smaller, it is possible to reduce the amount of the cleaning liquid that flows back from the nose and accumulates in the space 46. Therefore, the container 1 of the present embodiment is excellent in hygiene.

Further, since the sections 73a, 73b, 73c, 73d are easier to open and have higher strength than the conventional check valve opening / closing lid (single material), the injection port of the nozzle 4 is provided by the sections 73a, 73b, 73c, 73d. It is possible to prevent the momentum of the cleaning liquid toward 43 from being hindered, and it is not easy to remove the sections 73a, 73b, 73c, 73d from the check valve 70 at the time of cleaning or the like.

Further, since the end wall 71 of the check valve 70 has a tapered shape, the cleaning liquid in the space 46 flows downward along the outer surface of the end wall 71. Therefore, the amount of the cleaning liquid that applies downward pressure (pressure that pushes down the sections 73a, 73b, 73c, 73d) to the sections 73a, 73b, 73c, 73d can be reduced. Therefore, it is possible to prevent the sections 73a, 73b, 73c, 73d from bending inward due to elastic deformation and causing the cleaning liquid in the space 46 to flow back into the check valve 70. Further, the cleaning liquid flowing downward along the outer surface of the end wall 71 applies pressure to the end wall 71 from the side of the end wall 71, so that the sections 73a, 73b, 73c, 73d are closed. This also makes it possible to prevent the cleaning liquid in the space 46 from flowing back into the check valve 70.

Further, since the end wall 71 of the check valve 70 has a dome shape, the shape retention of the end wall 71 is enhanced. Therefore, even if a downward pressure is applied to the sections 73a, 73b, 73c, 73d by the cleaning liquid in the space 46, the end wall 71 retains its shape without being deformed by the pressure. By combining the shape retention of the end wall 71 and the blockage of the sections 73a, 73b, 73c, 73d due to the pressure from the side described above, the cleaning liquid in the space 46 is reversed from the cuts 72a, 72b, 72c, 72d. It is possible to reliably prevent backflow into the stop valve 70.

Further, there is a dome top 71a of the end wall 71 on the axis J of the check valve 70, and the check valve is pressed when the container body 2 is pressed by the cut 72 passing through the top 71a of the end wall 71. An opening through which the cleaning liquid can pass can be formed on the axis J of 70. As a result, the cleaning liquid can flow to the injection port 43 through the opening without changing the direction of the flow of the cleaning liquid in the check valve 70.

Further, since the cuts 72a, 72b, 72c, 72d extend radially around the axis J of the check valve 70, the sections 73a, 73b, 73c, 73d are easily elastically deformed and easily bent outward. .. Therefore, the cleaning liquid can be vigorously supplied to the injection port 43 without reducing the momentum of the cleaning liquid by the sections 73a, 73b, 73c, 73d.

Further, the cuts 72a, 72b, 72c, 72d extend from the top 71a of the end wall 71 on the axis J of the check valve 70 to the base 71b of the end wall 71, so that the sections 73a, 73b, 73c, 73d are formed. The check valve 70 is greatly elastically deformed to form the large opening on the axis of the check valve 70. Therefore, the flow rate of the cleaning liquid toward the injection port 43 can be increased.

Further, since the air valve 80 and the check valve 70 are integrally formed, the number of parts of the container 1 is reduced and the structure is simplified as compared with the case where the air valve 80 and the check valve 70 are formed separately. can do. Further, since the time and effort for attaching and detaching the air valve 80 and the check valve 70 to and from the lid 3 can be reduced, the air valve 80 and the check valve 70 can be easily replaced and cleaned.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above embodiment, an example in which four notches 72a, 72b, 72c, and 72d are formed in the end wall 71 of the check valve 70 is shown, but the number of notches 72 formed in the end wall 71 is four. The number is not limited, and any number of 1 or more can be used. Further, in the above embodiment, the notch 72 passes through the top 71a of the end wall 71, but the notch 72 may not pass through the top 71a of the end wall 71. Further, in the above embodiment, an example in which the end wall 71 has a dome shape is shown, but the shape of the end wall 71 is not limited to this. For example, the shape of the end wall 71 may be a tapered shape such as a hollow cone, a triangular pyramid, a quadrangular pyramid, or a duck bill. Further, the end wall 71 may have a tapered shape with a flat upper end, such as a hollow truncated cone shape, a triangular truncated cone shape, or a quadrangular truncated cone shape. Further, the end wall 71 does not necessarily have to be tapered, and the end wall 71 may have a constant outer diameter (for example, a tubular shape). As described above, even when the shape of the check valve 70 is deformed, at least two sections 73 that are elastically deformed by the pressure of the cleaning liquid or the like can be formed by making one or more notches 72 in the end wall 71. Therefore, the same effect as that of the above embodiment can be obtained. Further, by appropriately adjusting the length of the notch 72 and the hardness of the check valve 70, the size of the opening generated by the movement of the section 73 can be adjusted. Therefore, the flow rate of the cleaning liquid passing through the check valve 70 and toward the injection port 43 can be adjusted.

Further, in the above embodiment, an example in which one notch 83 is formed in the end wall 81 of the air valve 80 is shown, but the number of notches 83 formed in the end wall 81 is not limited to one and is not limited to one. It may be. Further, the shape of the end wall 81 is not limited to the above-mentioned duck building shape. For example, the shape of the end wall 81 may be a hollow conical shape, a triangular pyramid shape, a quadrangular pyramid shape, or a tapered shape such as a dome shape. Further, the shape of the end wall 81 may be a hollow truncated cone shape, a triangular truncated cone shape, a quadrangular truncated cone shape, or the like with a flat lower end, and has a constant outer diameter (cylindrical shape). Good. As described above, even when the shape of the air valve 80 is deformed, at least two sections 82 that are elastically deformed by the pressure of air can be formed by making one or more notches 83 in the end wall 81. Therefore, the same effect as that of the above embodiment can be obtained.

Further, in the above embodiment, only one nozzle 4 is integrally provided on the lid 3, but two nozzles 4 may be integrally provided on the lid 3. In this case, the two nozzles 4 are provided at positions deviated from the center position C of the lid 3, that is, at positions where both of the two nozzles 4 are closer to the outer peripheral edge portion than the center position C. Further, in this case, the valve member 6 is provided with two check valves 70, and the end walls 71 of the check valves 70 are fitted into the lower ends of the internal space of each nozzle 4.

Further, in the above embodiment, the container body 2 is configured to have flexibility or elasticity, but it is formed of hard glass or the like, and the container body 2 does not have flexibility or elasticity. It may be configured as follows.

Further, in the above embodiment, the lid 3 is detachably attached to the container body 2 by fastening the male screw 23 and the female screw 32, but both are attached by other means such as fitting the rib and the groove. It may be a detachable configuration.

Further, in the above embodiment, the container body 2 is formed in a flat shape, but it does not necessarily have to be formed in a flat shape.

Further, in the above embodiment, the container body 2 and the lid 3 are separate members, but the lid 3 may be integrally provided on the container body 2.

Further, in the above embodiment, an example in which the container of the present invention is used as a nasal washer is shown, but the present invention includes a washer for ears, mouth, urinary tract, vagina, anus, etc. By pressing the container body, it can be applied to various containers in which the liquid stored in the container body is ejected from the injection port.

1 Container 2 Container body 4 Nozzle 43 Injection port 46 Space 50 Air hole 70 Check valve 71 Check valve end wall 72a, 72b, 72c, 72d Check valve notch 73a, 73b, 73c, 73d Check valve section 74 Check valve opening 80 Air valve 81 Air valve end walls 82a, 82a, 82a, 82a Air valve section,
83 Air valve notch 84 Air valve opening J Check valve axis

Claims (8)

The container body that stores the liquid inside and
A nozzle having an injection port for injecting a liquid stored inside the container body when the container body is pressed,
A check valve provided between the container body and the injection port to prevent liquid from flowing back into the container body is provided.
The check valve has a tubular shape with one end closed by an end wall and the other end having an opening for allowing liquid from the container body to flow in.
The end wall faces the injection port via a space,
The end wall comprises at least one notch and at least two sections separated by the notch and elastically deformable, exhibiting a tapered shape.
The container body has a hollow, bottomed body capable of storing liquids.
The barrel, have a structure in which the cylindrical surface from the outer periphery of the bottom surface extends,
The other end of the check valve is a container that is not in contact with the inner peripheral surface of the nozzle . The tubular surface is composed of a front surface, a back surface, a left side surface, and a right side surface connected in a tubular shape.
The container according to claim 1, wherein the left side surface and the right side surface are formed in a shape that is convex outward in the vertical direction and flat in the front-rear direction. The tubular surface is composed of a front surface, a back surface, a left side surface, and a right side surface connected in a tubular shape.
The container according to claim 1, wherein the front surface and the back surface are flat in the vertical direction. The container according to any one of claims 1 to 3, wherein the end wall has a dome shape. The end wall has a dome apex on the axis of the check valve.
The container according to claim 4, wherein the notch passes through the apex of the end wall. A plurality of notches are formed in the end wall.
The container according to any one of claims 1 to 5, wherein the plurality of notches extend radially around the axis of the check valve. An air hole for allowing air to flow into the container is formed in the container.
The air hole is provided with an air valve that prevents air from flowing from the inside of the container to the outside of the container.
The container according to any one of claims 1 to 6, wherein the air valve is formed integrally with the check valve. The air valve has an opening at one end for allowing air to flow in from the air hole, and the other end has a tubular shape closed by an end wall.
The container of claim 7, wherein the end wall comprises at least one notch and at least two sections separated by the notch and elastically deformable.

Images