JP6957814B2 - Valve set, cup - Google Patents

Description

The present invention relates to a valve set including a plurality of parts. The valve set is attached to a through hole formed in a bottomed cylindrical cup body, and a pipe can be inserted into the valve set to allow liquid to enter the cup body. Further, the present invention relates not only to a valve set but also to a cup including the valve set and a cup body.

As an example of a cup, there is one in which a valve is attached to a through hole formed in the lower outer peripheral surface of a cylindrical body portion. The valve can be opened and closed so that a pipe can be inserted. And the liquid can be injected into the inside of the body from the pipe.

Japanese Unexamined Patent Publication No. 2016-119935

By the way, since the body and the valve are separate parts, it is necessary to bring the boundary between the concave groove formed on the outer peripheral surface of the valve and the through hole of the body into close contact with each other to prevent liquid leakage. The difficulty of preventing liquid leakage varies depending on the conditions of the body portion on which the through hole is formed, for example, the thickness of the body portion, the shape of the body portion, the position of the through hole in the body portion, and the like.

Specifically, for example, if the body is thick, in other words, if the body is thick enough not to be deformed, the contact area between the valve and the through hole is wide, and it is easy to prevent liquid leakage.
However, if the body portion is thin, in other words, the body portion is thin enough to be elastically deformed, the contact area between the valve and the through hole is narrow, and it is difficult to prevent liquid leakage.

To give another example, if the through hole and its peripheral portion exist on a flat surface of the body, more specifically, on a flat surface or a curved surface having a large curvature, the concave groove of the valve fits on a flat surface or the like. Because it is made, it is hardly affected by the shape of the body, and it is easy to prevent liquid leakage.
Further, when preventing liquid leakage, it is common sense that the groove width of the concave groove of the valve matches the thickness of the through hole. However, if the through hole and its peripheral portion are present on the uneven surface of the body, and the concave groove of the valve is made to match the thickness of the through hole, the concave groove of the valve will be adjusted to the uneven surface of the body. Since it is deformed, it is difficult to prevent liquid leakage. By the way, as an example of the shape of the uneven surface of the body, there is a step part that bends in the caliber direction at the bottom of the cylindrical body, and the caliber of the body is on the upper and lower sides of the step. It has a different shape. Then, for example, when a through hole and a peripheral portion thereof are present on the upper side and the lower side of the step portion, it is difficult to prevent liquid leakage.

The present invention has been created in consideration of the above circumstances, and an object of the present invention is to prevent liquid leakage from the boundary between the through hole of the body and the valve as much as possible.

The valve set of the present invention includes a valve that fits into a through hole formed in the cup body and is elastically deformable, and a retaining ring that spreads the valve from the inside and stops it in the cup body. Further, the valve is provided with a cylindrical plug portion that fits inside the through hole and has one end as an open end, and a valve portion that opens and closes the other end side of the plug portion so as to be openable and closable. The valve portion includes a deformed portion of the plug portion that extends from the valve portion side in the penetrating direction and a valve body portion that closes the tip of the deformed portion, and the deformed portion has a thickness in the caliber direction. It is thinner than the thickness of the end portion of the plug portion and the thickness of the valve body portion on the deformed portion side. On top of that, the retaining ring has a cylindrical shape that fits inside the stopper, and is harder than the valve.

An example of a specific configuration of the retaining ring is as follows.
Retaining rings are inserted at the end of the tubular insertion part that is inserted from the opening end side into the inside of the plug part, and at both ends of the insertion part in the penetrating direction on the opening end side when attached to the plug part. It is provided with a flange portion that projects outward. On top of that, the outer diameter of the insertion portion is larger than the inner diameter of the plug portion.

Further, the cup of the present invention using the valve set described above includes a cup body having a through hole formed therein and a valve set fitted in the through hole. Further, the cup body is provided with a cup body including a cylindrical and uneven surface, and a cup bottom that closes the lower end of the cup body, and has a thickness of 0.2 mm to 0.5 mm that can be elastically deformed. Moreover, the valve is present on the uneven surface of the cup body.

The following are examples of cups.
That is, the cup body is the upper part of the body forming the upper side thereof, the lower part of the body forming the lower side of the cup body, and the lower part of the body whose upper end is smaller than the diameter of the lower end of the upper part of the body. It is provided with a stepped portion that joins the lower part and the upper part of the body in a stepped manner. On top of that, part of the valve is in the step.

Further, although the specific configuration of the plug portion is not limited, it is desirable to perform the following in order to suppress the elastic deformation of the concave groove portion as much as possible.
That is, the plug portion is provided with an annular recessed groove portion on the outer peripheral surface thereof, which accommodates the through hole over the entire circumference. Moreover, the groove width of the concave groove portion is made wider than the thickness of the through hole of the cup body.

In the valve set of the present invention, the retaining ring is made harder than the valve, and the valve is expanded from the inside by the retaining ring. Therefore, the stopper can be brought into close contact with the through hole of the cup body, and the through hole and the valve can be connected. It becomes difficult for liquid to leak from the boundary.

Further, in the cup of the present invention, not only the cup body has a thickness that allows elastic deformation, but also the valve exists on the uneven surface of the cup body, so that liquid leakage is likely to be induced. Nevertheless, in the cup of the present invention, the elastic deformation of the plug portion (concave groove portion) due to the uneven surface can be suppressed as much as possible by the retaining ring, and the plug portion can be brought into close contact with the through hole. It becomes difficult for liquid to leak from the boundary with the valve.

Further, in the cup of the present invention, if the valve is provided with an annular concave groove portion in the plug portion and the groove width of the concave groove portion is wider than the thickness of the through hole of the cup body, for example, the groove width of the concave groove portion is used as a cup. Compared to the one with the thickness of the through hole of the main body or less, the elastic deformation of the plug part (concave groove part) due to the relationship between the groove width of the concave groove part and the thickness of the through hole can be suppressed by the groove width, so that the through hole It becomes difficult for liquid to leak from the boundary with the valve.

It is a partial cross-sectional view which shows by disassembling the cup of the 1st Embodiment of this invention. FIGS. (A) and (B) are an enlarged cross-sectional view of a main part of the cup of the first embodiment and an explanatory view showing a state in which a pipe is inserted into a valve set. (A), (B), and (C) are a front view, a side view, and an enlarged sectional view taken along line AA of the valve of the valve set. (A), (B), and (C) are a front view, a side view, and an enlarged cross-sectional view taken along the line AA of the retaining ring of the valve set.

As shown in FIG. 1, the cup 1 of the first embodiment of the present invention includes a cup main body 2 in which a through hole 2a is formed, and a valve set 3 fixed to the through hole 2a.

The valve set 3 includes a valve 4 that fits into the through hole 2a of the cup body 2, and a retaining ring 7 that pushes the valve 4 from the inside and stops it at the cup body 2. The valve 4 and the retaining ring 7 have a cylindrical shape, and in the present embodiment, the valve 4 and the retaining ring 7 have a cylindrical shape as an example of the tubular shape. Therefore, in the description of the valve 4 and the retaining ring 7, when the term "cylindrical" is used, it means "cylindrical".

The valve 4 is elastically deformable and is made of, for example, silicon. Further, as shown in FIGS. 6 is provided.

The plug portion 5 includes a cylindrical plug main body 51, one end side of the plug main body 51 in the penetrating direction is the opening end side, and the other end side (valve side) of the penetrating direction is closed by the valve portion 6. Closed end. In addition to the plug main body 51, the plug 5 includes a first outer flange 52, a second outer collar 53, and a plug that project outward from the outer peripheral surface of the plug main 51 in the radial direction over the entire circumference thereof. The inner flange portion 54 is provided so as to project from the inner peripheral surface of the main body portion 51 inward in the radial direction over the entire circumference thereof.

The first outer collar portion 52 and the second outer collar portion 53 are annular, more specifically, annular. The first outer collar portion 52 is located on the opening end side with respect to the second outer collar portion 53, and the second outer collar portion 53 is on the closed end side (valve portion side) with respect to the first outer collar portion 52. It shall be located. Further, the outer diameter of the first outer collar portion 52 is larger than the outer diameter of the second outer collar portion 53.
Further, a concave groove portion 5a surrounded by a first outer flange portion 52, a second outer flange portion 53, and a plug main body portion 51 is formed on the outer peripheral surface of the plug portion 5 in the radial direction. The concave groove portion 5a is an annular shape, more particularly an annular shape, which opens outward in the radial direction and accommodates the periphery of the through hole 2a over the entire circumference thereof. Further, the groove width 5W of the concave groove portion 5a is wider than the thickness 2t of the through hole 2a of the cup body 2.

The stopper main body 51 has an end on the opening end side of the inner peripheral surface as an inlet portion 51a when the retaining ring 7 is inserted. The inlet portion 51a of the plug body portion 51 has an inclination that decreases in diameter from the open end toward the closed end side (valve portion side). More specifically, in the present embodiment, the diameter decreases in a conical shape. What is, so-called tapered shape.
Further, the plug main body 51 is a guide portion 51b when the valve 4 is inserted into the through hole 2a at the end portion of the outer peripheral surface on the valve portion side. The guide portion 51b has a tapered shape that decreases in diameter from the second outer flange portion 53 toward the valve portion side.

The valve portion 6 includes a deformed portion 61 extending from the closed end side of the plug portion 5 in the penetrating direction of the plug portion 5, and a valve main body portion 62 that closes the tip of the deformed portion 61.

The deformed portion 61 has a cylindrical shape. Regarding the thickness in the radial direction, the thickness 61t of the deformed portion 61 is the thickness of the end portion of the plug portion 5 (the portion where the inner flange portion 54 projects inward from the plug main body portion 51) on the deformed portion side (closed end side). Of the 51t and the valve body 62, the thickness is thinner than the thickness 62t on the deformed portion side (outer peripheral portion side), whereby the deformed portion 61 is easily elastically deformed. Incidentally, regarding the thickness in the caliber direction, the boundary between the valve body 62 and the deformed portion 61 has the same thickness as the deformed portion 61, but the portion of the valve body 62 on the deformed portion side is deformed as it is separated from the deformed portion 61. It is gradually thicker than the thickness of the portion 61.

The valve body 62 has a plate shape that closes the tip of the deformed portion 61, and more specifically, a disk shape. Further, the valve body portion 62 includes an inner surface 62a facing the internal space side of the plug portion 5. The inner surface 62a has a cross-sectional shape that bulges toward the outer surface of the valve body 62. In other words, the inner surface shape of the valve body 62 is a spherical shape smaller than the spherical surface of the hemisphere. Further, the valve main body 62 is provided with a cut 63 penetrating in the penetrating direction of the plug 5. The cut 63 extends radially with respect to the center of the disc-shaped valve body 62. Normally, the cut 63 is closed by the elasticity of the valve itself.
The retaining ring 7 fits inside the plug portion 5 of the valve 4 in the radial direction.

The retaining ring 7 is harder than the valve 4, and is made of polypropylene, for example.
Further, as shown in FIGS. A flange portion 72 that projects outward in the radial direction of the insertion portion 71 is provided at the end portion on the opening end side when attached to the portion 5.

The insertion portion 71 has a cylindrical shape whose outer peripheral surface has the same shape as the inner peripheral surface of the stopper main body portion 51 of the stopper portion 5. Further, the insertion portion 71 has an end portion on the flange portion side in the penetrating direction as an inlet portion 71a when the pipe P for liquid injection is inserted. The inlet portion 71a of the insertion portion 71 has a tapered shape that increases in diameter toward the flange portion 72. Further, the outer diameter 71D of the portion of the insertion portion 71 other than the inlet portion is slightly larger than the inner diameter 51D of the portion of the plug main body 51 other than the inlet 51a, whereby the inner diameter of the stopper main body 51 in the diameter direction is increased. When the insertion portion 71 is fitted into the plug body portion 51, the stopper main body portion 51 is pushed outward in the radial direction.
The flange portion 72 is annular, more specifically annular.
It is the cup body 2 that fixes the valve set 3 including the retaining ring 7 and the valve 4.

The cup body 2 has a cylindrical shape, more specifically a cylindrical cup body 21, and a cup bottom 25 that closes the lower end of the cup body 21, that is, a so-called bottomed tubular shape.
The cup body 2 is made of plastic and is deformable while having rigidity. That is, when the cup body 21 is held with a little force, it is dented and deformed, and when the force is released, it is restored to its original shape. It is thick enough to be used. The thickness is 0.5 mm or less, preferably 0.3 mm or less. The lower limit of the thickness of the cup body 2 is preferably 0.2 mm.

The bottom 25 of the cup is plate-shaped.

The cup body 21 has an uneven surface shape. More specifically, the cup body 21 has a cylindrical upper body 22 and an annular step 23 extending inward in the radial direction from the entire circumference of the lower end of the upper body 22 in order from the top, and the upper body. A cylindrical lower body portion 24 having a small diameter with respect to 22 is provided.

The body upper portion 22 forms an upper portion of the cup body portion 21, and has a tapered shape in which the diameter becomes smaller toward the lower side. More specifically, the upper body 22 includes a tapered body upper body 22a and an annular flange 22b protruding outward in the radial direction from the upper end of the body upper body 22a.

The step portion 23 is an annular plate that extends in the radial direction, and more specifically, an annular plate in the present embodiment. When the cup body 2 is viewed from the side, the step portion 23 joins the lower body portion 24 and the upper body portion 22 in a stepped manner and bends with respect to the lower body portion 24 and the upper body portion 22.

The lower body portion 24 forms a lower portion of the cup body portion 21, and has a cylindrical shape having a substantially constant diameter.

A through hole 2a is formed in the above-mentioned cup body 21. The position of the through hole 2a is a position where the plug portion 5 of the valve 4 is elastically deformed by the step portion 23, and in the present embodiment, a position extending over both the step portion 23 and the lower body 24 (starting from the lower end of the upper body 22). (Lower position). By the way, other than the example of the present embodiment, the positions of elastic deformation are the positions extending vertically around the step portion 23, that is, the positions extending over the upper body 22, the step portion 23, and the lower body 24, and the body. The position of the upper part 22 near the step 23, the position of the lower body 24 near the step 23, and the position extending over both the step 23 and the upper part 22 (upper position starting from the upper end of the lower part 24). Is.

The through hole 2a is circular when the cup body 2 is viewed from the side. Further, the inner diameter 2D of the through hole 2a is slightly larger than the diameter 5D of the concave groove portion 5a. The diameter 5D of the concave groove portion 5a is the diameter of the inner surface of the concave groove portion 5a that forms the inner side in the radial direction.

The cup 1 of the first embodiment described above is assembled as follows. First, the valve 4 is inserted into the through hole 2a. Then, the guide portion 51b of the valve 4 passes through the through hole 2a, and then the through hole 2a gets over the second outer collar portion 53, and the peripheral portion of the through hole 2a collides with the first outer collar portion 52. The through hole 2a fits into the concave groove portion 5a. Then, since the position of the through hole 2a extends over the step portion 23 and the lower body portion 24, the upper body side of the through hole 2a is located on the first outer flange portion 52 side of the concave groove portion 5a, and the through hole is formed. Of 2a, the lower body side is located on the second outer flange portion 53 side of the concave groove portion 5a. At this time, since the inner diameter 2D of the through hole 2a is slightly larger than the diameter 5D of the concave groove portion 5a, the through hole 2a and the concave groove portion 5a are in a state where there is a slight gap in the radial direction.
2) Next, the retaining ring 7 is inserted inside the valve 4. Then, since the outer diameter 71D of the insertion portion 71 of the retaining ring 7 is slightly larger than the inner diameter 51D of the plug main body 51 of the valve 4, the plug main body 51 is elastically deformed and expanded outward in the radial direction and penetrates. The hole 2a and the concave groove portion 5a are in close contact with each other in the radial direction.

The valve set 3 has the following effects with respect to the cup 1 of the first embodiment described above.
Since the inner diameter 2D of the through hole 2a is slightly larger than the diameter 5D of the concave groove portion 5a of the plug portion 5, simply fitting the valve 4 into the through hole 2a is sufficient to fit the through hole 2a and the plug portion 5 into the recess. There is a gap with the groove 5a in the radial direction. However, when the retaining ring 7 is fitted inside the valve, the retaining ring 7 is harder than the valve 4 and pushes the valve 4 outward in the radial direction from the inside thereof. It can be brought into close contact with each other, and liquid leakage is less likely to occur from the boundary between the through hole 2a and the valve 4.

Further, in the cup 1 of the first embodiment, not only the cup body 2 has a thickness of 2 tons that can be elastically deformed, but also the valve 4 exists on the uneven surface of the cup body 21, in other words, a part of the valve 4. Is present in the step portion 23 (the valve 4 is present in the upper part 22 of the body, the step part 23, and the lower part 24 of the body), so that the valve 4 (recessed groove portion 5a) is elastically deformed by the unevenness (step portion 23). It can be said that it is easy to induce liquid leakage. Nevertheless, the elastic deformation of the plug portion 5 (recessed groove portion 5a) due to the uneven surface can be suppressed as much as possible by the retaining ring 7, and the plug portion 5 can be brought into close contact with the through hole 2a of the cup body 2. , It becomes difficult for liquid to leak from the boundary between the through hole 2a and the valve 4.

Further, in the cup 1 of the first embodiment, the valve 4 is provided with an annular concave groove portion 5a in the plug portion 5, and the groove width 5W of the concave groove portion 5a is made wider than the thickness 2t of the through hole 2a of the cup main body 2. Therefore, for example, as compared with the case where the groove width 5W of the concave groove portion 5a is made equal to or less than the thickness of the through hole 2a of the cup body 2, the plug portion 5 due to the relationship between the groove width 5W of the concave groove portion 5a and the thickness 2t of the through hole 2a Since the elastic deformation of the (recessed groove portion 5a) is suppressed by the groove width of 5W, it becomes difficult for liquid to leak from the boundary between the through hole 2a and the valve 4.

In the cup 1 of the first embodiment, when the pipe P is inserted from the inside of the valve set 3 in the radial direction, the cut 63 is opened, the pipe P is inserted inside the cup body 2, and the liquid is injected from the pipe P. .. Then, when the pipe P is pulled out, the cut 63 is closed and the liquid is contained in the cup body 2.

The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit of the present invention.

For example, the cup body 2 has a cylindrical shape in the present embodiment, but is not limited to this in the present invention and may have a square tubular shape. Further, the valve 4 and the retaining ring 7 of the valve set 3 have a cylindrical shape in the present embodiment, but the present invention is not limited to this and may have a square tubular shape.

1 cup 2 cup body 2a through hole 2D inner diameter 2t thickness 21 cup body 22 upper body 22a body upper body 22b flange 23 steps 24 body lower 25 cup bottom 3 valve set 4 valve 5 plug 5a concave groove 5D diameter 5W groove width 51 Plug body 51a Inlet 51b Guide 51D Inner diameter 51t Thickness 52 First outer flange 53 Second outer flange 54 Inner flange 6 Valve 61 Deformation 61t Thickness 62 Valve body 62a Inner surface 62t Thickness 63 7 Retaining ring 71 Insertion part 71a Inlet part 71D Outer diameter 72 Flange part P pipe

Claims (5)

Equipped with a valve that fits into the through hole formed in the cup body and is elastically deformable, and a retaining ring that spreads the valve from the inside and stops it in the cup body.
The valve is provided with a cylindrical plug that fits inside the through hole and has one end as an open end, and a valve that opens and closes the other end of the plug so that it can be opened and closed.
The valve portion includes a deformed portion of the plug portion that extends from the valve portion side in the penetrating direction and a valve body portion that closes the tip of the deformed portion, and the deformed portion has a thickness in the caliber direction. The thickness of the end portion of the plug portion and the thickness of the valve body portion on the deformed portion side are thinner.
The retaining ring is a valve set that has a cylindrical shape that fits inside the stopper and is harder than the valve. Retaining rings are inserted at the end of the tubular insertion part that is inserted from the opening end side into the inside of the plug part, and at both ends of the insertion part in the penetrating direction on the opening end side when attached to the plug part. Equipped with a flange that projects outward
The valve set according to claim 1, wherein the outer diameter of the insertion portion is larger than the inner diameter of the plug portion. A cup body having a through hole formed therein, and a valve set according to claim 1 or 2 fitted in the through hole.
The cup body is provided with a cup body that is cylindrical and includes an uneven surface, and a cup bottom that closes the lower end of the cup body, and has a thickness of 0.2 mm to 0.5 mm that can be elastically deformed.
The cup is characterized in that the valve is present on the uneven surface of the cup body. The cup body is the upper part of the body that forms the upper side of the cup, the lower part of the body that forms the lower part of the cup body, and the diameter of the upper end is smaller than the diameter of the lower end of the upper part of the body. It has a stepped part that joins the upper part of the body in a stepped manner.
The cup according to claim 3, wherein a part of the valve is present in a step portion. The plug portion is provided with an annular recessed groove portion on the outer peripheral surface thereof, which accommodates a through hole over the entire circumference.
The cup according to claim 3 or 4, wherein the groove width of the concave groove portion is wider than the thickness of the through hole of the cup body.

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