JPH09252955A - Liquid leakage prevention unit of pot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent liquid from leaking when a pot is tilted toward its mouth by more than a certain angle and thereby causing trouble at the time of discharge. SOLUTION: A valve case 22 storing a spherical valve 26 inside is provided at an angle that makes a storing part 27 side lower in the halfway point of a channel 14, the spherical valve 26 closes an outlet 25 at the time of tilt, by fronting an outlet pipe 21' having a mouth 25 facing the storage 27 to the top of an inlet 23, pressure is applied to the spherical valve 22 toward the deep part of the storing part 27 by turning a part of a flow hitting the outlet pipe 21' toward the storing part 27 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pot liquid leakage prevention device.

[0002]

2. Description of the Related Art In order to prevent liquid from leaking from a discharge port when a pot falls, a safety valve device is conventionally provided in a part of a liquid passage near the discharge port. In this safety valve device, the safety valve operates to prevent liquid leakage when the pot falls, but the safety valve does not operate if tilted to such an extent that the pot does not fall.

For this reason, even if the pot is slightly inclined to the ejection port side when the inner container contains a full amount or a close amount of the liquid, the liquid may leak from the ejection port.

In order to prevent such liquid leakage, FIG.
The applicant has previously proposed that the discharge pipe 3 is connected to the upper end outlet of the safety valve device 2 provided in the upper part of the liquid passage 1 as shown in, and the liquid leakage prevention device 4 is provided inside the discharge pipe 3. (Japanese Patent Application No. 7-275758).

The liquid leakage prevention device 4 is connected to the safety valve device 2 by providing a liquid inlet 5 in the middle of the inclined portion of the discharge pipe 3, and at the end of the discharge pipe 3 at a position lower than the liquid inlet 5. A storage portion 7 for the spherical valve 6 is provided, and a valve hole 8 is provided inside the discharge pipe 3 at a position higher than the liquid inlet 5.

The spherical valve 6 of the liquid leakage prevention device 4 does not impede the flow of liquid when it is discharged by the action of a pump (not shown), but when the pot is tilted toward the discharge port 9 side by a certain amount or more, It moves as shown by the dashed line to close the valve hole 8 and prevent leakage of liquid.

[0007]

However, in the liquid leakage prevention device 4 described above, when the discharge pipe 3 has a small inclination, the spherical valve 6 moves to close the valve hole 8 during normal liquid discharge. is there. This is because the front portion of the spherical valve 6 becomes a negative pressure due to the flow flowing in from the liquid inlet 5 toward the discharge port 9 side,
It is thought that the cause is that is attracted in the direction of flow.

Therefore, an object of the present invention is to prevent the above-mentioned spherical valve from obstructing the discharge of liquid during normal liquid discharge.

[0009]

In order to achieve the above object, the invention according to claim 1 provides a valve in the middle of a liquid passage provided between a lower part of an inner container and a discharge port of an upper part of an outer casing. A case is provided, a liquid outlet is provided at one end of the valve case, and a spherical valve storage portion is provided at the other end, and a liquid inlet is provided between the liquid outlet and the storage portion, and the storage portion is provided on the bottom surface of the valve case. In the liquid leakage prevention device for a pot, which is configured such that the side is lowered, and when the pot is inclined toward the discharge port side by a certain amount or more, the spherical valve stored in the storage unit moves to close the liquid outlet. A flow restricting portion faces the liquid inlet, and a part of the flow is bent by the restricting portion toward the storage portion.

According to the above invention, at the time of discharging the liquid, a part of the flow of the liquid flowing from the liquid inlet into the valve case is regulated by the regulating portion and bent toward the accommodating portion of the spherical valve. Due to the bent flow, the spherical valve is pushed into the inner part of the storage part and becomes stable, and does not move to the liquid outlet side.

The above-mentioned regulating portion can be constituted by an outlet pipe having a liquid outlet. Further, when the accommodating portion of the spherical valve is formed by the recess on the end surface of the valve case, the flow that goes around to the rear side of the spherical valve is reduced, so that the spherical valve becomes more stable.

Further, according to a fourth aspect of the present invention, a valve case is provided in the middle of a liquid passage provided between the lower portion of the inner container and the discharge port of the upper portion of the outer casing, and the liquid outlet is provided at one end of the valve case. While providing a storage portion for the spherical valve at the other end, a liquid inlet is provided on the bottom surface of the valve case between the liquid outlet and the storage portion, and the bottom surface of the valve case is provided with an inclination that the storage portion side becomes low,
When the pot is tilted toward the discharge port side by a certain amount or more, the spherical valve stored in the storage unit moves to close the liquid outlet, and in the liquid leakage prevention device for the pot, a floating body is provided at the liquid inlet portion. The floating body is provided in front of the storage portion by the flow of the liquid.

According to the above invention, at the time of discharging the liquid, the levitation body floats in front of the accommodating portion of the spherical valve due to the flow of the liquid, and prevents the spherical valve from moving toward the liquid outlet.

The levitation body is accommodated in a guide portion below the liquid inlet so as to be vertically movable, a liquid passage gap is provided in the levitation body or the guide portion, and a protrusion is provided on the levitation body to float the levitation body. It is possible to adopt a configuration in which the projection sometimes projects to the front of the storage portion.

Further, the levitation body is rotatably attached to the bottom surface of the container entrance by a hinge, and the levitation body rises from the starting point of rotation of the levitation body to the front of the container entrance in a state of being tilted above the liquid entrance. It is also possible to adopt a configuration in which the state has a turning end point.

According to a seventh aspect of the invention, a valve case is provided in the middle of the liquid passage provided between the lower part of the inner container and the discharge port of the upper part of the exterior body, and the liquid inlet is provided at the bottom of the valve case and one end is provided. Liquid outlets are provided respectively, and on the bottom surface of the case between the liquid inlet and the liquid outlet, a storage portion of a spherical valve opened to the liquid outlet side is provided to face the liquid outlet, and When the pot is tilted toward the discharge port side more than a certain amount, the spherical valve stored in the storage unit moves to close the liquid outlet, and the valve around the liquid outlet is provided. A part of the flow is bent toward the storage portion side by the end surface of the case.

In any of the above cases, a liquid recirculation hole can be provided at the bottom of the accommodating portion of the spherical valve.

In any of the above cases, when the pot is not discharging, when the pot tilts toward the discharging side, the spherical valve moves to the liquid outlet side and closes the liquid outlet to prevent liquid leakage. To do.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the accompanying drawings will be described below. In the first embodiment shown in FIGS. 1A and 1B, the liquid passage 14 is provided between the lower portion of the inner container 11 of the pot and the discharge port 13 of the upper portion of the outer casing 12, and the outer casing 12 is provided. The liquid in the inner container 11 is discharged from the discharge port 13 through the liquid passage 14 by the air pump or the electric pump installed in the above.

A safety valve device 15 is provided in the portion of the liquid passage 14 near the discharge port 13. This safety valve device 15
Makes a safety valve 17 housed in the valve chamber 16 face a valve hole 18 provided on the upper surface of the valve chamber 16, and when the pot falls, the safety valve 17 closes the valve hole 18 to prevent liquid leakage.

The liquid leakage prevention device 19 according to the present invention is provided between the safety valve device 15 and the discharge pipe 21 forming the end portion of the liquid passage 14.

That is, the valve case 22 constituting the liquid leak prevention device 19 constitutes the upper surface of the safety valve device 15, and the liquid inlet 23 of the valve case 22 and the valve hole 18 are integrally provided. The discharge pipe 21 is inserted into the outer end open portion of the valve case 22. A flange 24 is provided at the insertion portion of the discharge pipe 21, and the flange 24 is fitted to the outer peripheral surface of the valve case 22,
An outlet pipe 21 ′ protruding rearward from the collar 24 is inserted into the valve case 22 with a required gap, and the tip of the inserted outlet pipe 21 ′ serves as a liquid outlet 25.
The tip of the outlet pipe 21 ′, that is, the liquid outlet 25 faces above the center of the liquid inlet 23.

The valve case 22 facing the above liquid outlet 25
The end surface portion of the is a storage portion 27 of the spherical valve 26, the storage portion 27 is recessed inward of the pot from the liquid inlet 23, and a plurality of guide ribs 28 are provided on the bottom surface thereof. The guide ribs 28 reach the liquid outlet 25, and the surface (guide surface) including the upper end of each guide rib 28 matches the inner peripheral surface of the discharge port 25.

Further, each guide rib 28 has an inclined surface which becomes lower on the accommodating portion 27 side, and in a normal state, the spherical valve 26 is at the rear end of the accommodating portion 27, and the pot is discharged at an angle larger than the inclination angle of the guide rib 28. When tilted to the outlet 13 side, it rolls on the guide rib 28 to close the liquid outlet 25 (see the chain double-dashed line in FIG. 1A).

The liquid recirculation hole 2 is provided on the bottom surface of the storage section 27.
9 is provided to prevent the liquid from accumulating in the storage portion 27.

The first embodiment is as described above,
When the pump is operated in a normal use state where the pot is placed horizontally, the liquid in the inner container 11 is discharged from the discharge port 13 through the liquid passage 14. At this time, the liquid flowing in from the liquid inlet 23 of the valve case 22 via the safety valve device 15 flows out from the liquid outlet 25 via the valve case 22, but a part of the liquid flowing in from the liquid inlet 23 is part of the outlet pipe 21 '. It is regulated by the lower surface and bent toward the storage section 27.

The flow bent to the storage portion 27 side is the spherical valve 2
A force is applied in the direction of pushing 6 into the interior of the storage portion 27. Therefore, the negative pressure in the front part of the spherical valve 26 caused by the flow of the liquid flowing out from the liquid outlet 25 is relieved, and the spherical valve 26 is prevented from moving to the liquid outlet 25 side.

When the pot tilts toward the discharge port 13 and the guide rib 28 tilts in the opposite direction, the spherical valve 26 rolls on the guide rib 28 to close the liquid outlet 25 (see FIG. 1 (a)). Refer to the two-dot chain line in)), and prevent the leakage of liquid.

When the pot falls, the safety valve device 15 prevents the liquid from leaking as in the conventional case.

FIG. 2 shows the above modification, in which the accommodating portion 27 of the spherical valve 26 is formed by the recess 31 provided in the rear end surface of the valve case 22. The spherical valve 26 in this case is housed in the recess 31 with a slight gap. Therefore, during normal liquid discharge, the amount of liquid that wraps around the back side of the spherical valve 1 is smaller than in the case described above, and the liquid is more stable. Other configurations are the same as those in the above case.

In the above-described embodiment and its modified example, the inflowing liquid is regulated by the outlet pipe 21 'to bend the flow toward the storage portion 27 side, but instead of the outlet pipe 21', the valve case. The flow can be bent toward the storage portion 27 side only by allowing the plate-shaped or other regulating portion provided inside 22 to face the liquid inlet 23. The liquid outlet in that case is provided in the front end surface of the valve case 22.

The liquid leakage prevention device 19 of the third embodiment shown in FIG. 3 is also provided between the safety valve device 15 and the discharge pipe 21. That is, the valve case 22 that constitutes the liquid leakage waterproof device 19
Constitutes the upper surface of the safety valve device 15, and the liquid inlet 23 of the valve case 22 and the valve hole 18 of the safety valve device 15 are integrally provided. The liquid inlet 23 and the valve hole 18 form a cylindrical vertical guide portion 32.

A discharge pipe 21 is integrally provided on the front end surface of the valve case 22, and a boundary portion between the discharge pipe 21 and the valve case 22 serves as a liquid outlet 25 of the valve case 22. Also,
A storage portion 27 of a spherical valve 26 is provided on the inner side of the pot from the liquid inlet 23 so as to face the liquid outlet 25. The bottom surface of the valve case 22 is an inclined surface that becomes lower on the side of the storage portion 27, and in a normal state, the spherical valve 26 is located deep inside the storage portion 27.

The floating body 33 is housed in the guide portion 32 so as to be vertically movable. As shown in FIG. 3 (b), the floating body 33 is provided with a radial rib 35 integrally inside a ring body 36, and a protrusion 3 standing upright at the intersection of the ribs 35.
4 is provided, and a liquid passage gap 37 is formed between the ribs 35.

The floating body 33 described above is shown in FIG.
As shown in (a), it rests on the safety valve 17, and the protrusion 34 is at the same height as the bottom surface of the valve case 22 or at a height lower than this. The levitation body 33 is formed to be relatively lightweight, and floats by the flow of the liquid passing through the guide portion 32 (see the chain double-dashed line in FIG. 3A), and when the flow stops, it descends by its own weight.

As another floating body 33, as shown in FIG.
As shown in (c), the ring member 36 is omitted and the protrusion 34
A radial blade 38 may be provided at the lower end of the blade 38. In this case, a liquid passage gap 37 is formed between the blades 38. Further, as shown in FIG. 3D, the protrusion 34 may be integrally provided on the upper surface of the disc 39. In this case, by providing a plurality of guide ribs 41 on the inner peripheral surface of the guide portion 32 in the vertical direction, the liquid passage gap 3 is provided between the guide ribs 41.
7 'is formed.

In any of the above cases, when the floating body 33 floats during normal liquid discharge, its protrusion 34 stands in front of the storage portion 27 (see the chain double-dashed line in FIG. 3A) and the spherical valve 26 moves. Prevent. At this time, the liquid is floating body 33.
Alternatively, it flows out through the liquid passage gaps 37, 37 ′ formed in the guide portion 32.

When the pot tilts toward the discharge port in the non-discharge state, the spherical valve 26 rolls to close the liquid outlet 25 and prevent the liquid from leaking.

The liquid leakage prevention device 19 of the fourth embodiment shown in FIG. 4 is also provided between the safety valve device 15 and the discharge pipe 21. That is, the valve case 22 that constitutes the liquid leakage prevention device 19
Constitutes the upper surface of the safety valve device 15, and the liquid inlet 23 of the valve case 22 and the valve hole 18 of the safety valve device 15 are integrally provided.

A discharge pipe 21 is integrally provided on the outer end surface of the valve case 22, and a boundary portion between the discharge pipe 21 and the valve case 22 serves as a liquid outlet 25 of the valve case 22. Also,
A storage portion 27 for the spherical valve 26 is provided at the inner end of the valve case 22 facing the liquid outlet 25. The bottom surface of the valve case 22 is an inclined surface that becomes lower on the side of the storage portion 27, and in a normal state, the spherical valve 26 is located deep inside the storage portion 27.

A plate-like levitation body 43 is rotatably attached to the inner end of the liquid inlet 23 by a hinge 42, and the first receiving member of the levitation body 43 is attached to the periphery of the liquid inlet 23 on the opposite side of the hinge 42. The valve case 22 is provided under normal conditions
The tip end of the floating body 43 is received by the first receiving portion 44 along the inclination of the bottom surface.

The storage portion 27 above the hinge 42 is also provided.
A second receiving portion 44 is provided at the entrance of the above, whereby the rotation of the levitation body 43 is prevented. The state where the levitation body 43 is received by the first receiving portion 44 is the rotation start point, and the state where the levitation body 43 is received by the second receiving portion 44 is the rotation end point.

In the liquid leakage prevention device 19 having the above-described structure, when normal discharge is performed, the levitation body 43 hung over the liquid inlet 23 floats while being rotated upward by the flow of the liquid,
Its tip is received by the upper second receiving portion 44 '(see the chain double-dashed line in FIG. 4A). This allows the spherical valve 2
The levitation body 43 stands in front of 6 and blocks its movement.

When the pot is tilted toward the discharge port side during non-discharge, the spherical valve 26 rolls on the upper surface of the levitation body 43 to close the liquid outlet 25 (two-dot chain line in FIG. 4A). reference).

If the range of rotation of the levitation body 43 at the hinge 42 is limited so as to have a rotation end point in a state where it rises in front of the inlet of the storage section 27 from a rotation start point in a state where it is tilted above the liquid inlet 23, It is possible to omit the first and second receiving portions 44 and 44 'as described above.

In the third and fourth embodiments described above, the liquid inlet 2
Floating bodies 33, 43 are provided at the portion 3 and the floating bodies 33, 3
4 is floated in front of the storage section 27 according to the flow of the liquid,
There is commonality in the configuration in which the movement of the spherical valve 26 is prevented.

Next, the liquid leakage prevention device 19 of the fifth embodiment shown in FIGS.
Forms the upper surface of the safety valve device 14, and the valve hole 18 and the liquid inlet 23 are integrated.

The liquid inlet 23 is provided on the bottom surface along the inner end surface of the valve case 22, and the storage portion 27 of the spherical valve 26 is provided on the bottom surface of the valve case 22 in front of the liquid inlet 23. As shown in FIG. 5 (b), the storage portion 27 has a U-shape in which a portion facing the liquid outlet 25 is opened, and a top plate 45 is provided on the upper surface of the U-shaped portion to form a spherical valve. 26 is surrounded.

A guide rib 28 of the spherical valve 26 is provided across the bottoms of the storage portion 27 and the liquid outlet 25, and the portion of the valve case 22 provided with the guide rib 28 is inclined so that the storage portion 27 side becomes lower. There is. The liquid outlet 25 is the valve case 2
It is provided at a substantially central portion of the front end face 46 of No. 2.

In the liquid leakage prevention device 19 having the above-mentioned structure, the liquid flowing from the liquid inlet 23 into the valve case 22 at the time of discharging the liquid from the pot flows along the periphery of the storage portion 27 toward the liquid outlet 25, and the flow of the liquid is prevented. A part of the front end surface 46 around the liquid outlet 25
It hits the opening side of the storage part 27 and hits the spherical valve 26.
Exert a pushing force against. This prevents the spherical valve 26 from moving to the liquid outlet 25 side.

When the pot is tilted toward the discharge port side when it is not discharged, the spherical valve 26 moves to close the liquid outlet 25 and prevent the liquid from flowing out.

[0052]

As described above, in each of the inventions of the claims, when the pot is tilted to the discharge port side to some extent, the spherical valve closes the liquid outlet of the valve case to prevent liquid leakage, and the normal liquid discharge is performed. At times, there is an effect that the movement of the spherical valve is prevented and the discharge of the liquid is not hindered.

[Brief description of drawings]

FIG. 1A is a sectional view of a first embodiment. FIG. 1B is a sectional view taken along line bb of FIG. 1A.

FIG. 2 is a sectional view of a modification example of the above.

FIG. 3A is a cross-sectional view of the second embodiment. FIG. 3B is a perspective view of the levitation body above. FIG. 3C is a perspective view of a modified example of the levitation body above. Figure

FIG. 4A is a sectional view of the third embodiment. FIG. 4B is a perspective view of the stopper piece.

5A is a sectional view of a fourth embodiment. FIG. 5B is a sectional view taken along line bb of FIG. 5A.

FIG. 6 is a sectional view of a conventional example.

[Explanation of symbols]

 11 Inner Container 12 Outer Body 13 Discharge Port 14 Liquid Passage 15 Safety Valve Device 16 Valve Chamber 17 Safety Valve 18 Valve Hole 19 Liquid Leak Prevention Device 21 Discharge Pipe 21 'Outlet Pipe 22 Valve Case 23 Liquid Inlet 24 Flange 25 Liquid Outlet 26 Spherical Valve 27 Storage part 28 Guide rib 29 Recirculation hole 31 Recess 32 Guide part 33 Floating body 34 Projection 35 Rib 36 Ring body 37, 37 'Liquid passage gap 38 Wing piece 39 Disc 41 Guide rib 42 Hinge 43 Floating body 44, 44' Receiver Part 45 Top plate 46 Front end face

Claims (8)

[Claims] 1. A valve case is provided in the middle of a liquid passage provided between a lower part of an inner container and a discharge port of an upper part of an exterior body, a liquid outlet is provided at one end of the valve case, and a spherical valve storage portion is provided at the other end. In addition to providing each, a liquid inlet is provided between the liquid outlet and the storage portion, the bottom of the valve case is provided with an inclination that lowers the storage portion side, and when the pot is inclined toward the discharge opening side by a certain amount or more, In a liquid leakage prevention device for a pot, wherein a spherical valve housed in a housing moves to close the liquid outlet, in a liquid leakage prevention device of the pot, a flow restricting portion is made to face the liquid inlet, and a part of the flow is caused by the restricting portion. A device for preventing liquid leakage from a pot, characterized in that it is bent toward the storage section. 2. The pot liquid leakage prevention device according to claim 1, wherein the regulating portion is formed by an outlet pipe having the liquid outlet. 3. The pot liquid leakage prevention device according to claim 1, wherein the spherical valve storage portion is formed by a recess in the end surface of the valve case. 4. A valve case is provided in the middle of a liquid passage provided between the lower part of the inner container and the discharge port of the upper part of the exterior body, a liquid outlet is provided at one end of the valve case, and a spherical valve storage portion is provided at the other end. In addition to providing each, a liquid inlet is provided on the bottom surface of the valve case between the liquid outlet and the storage portion, the bottom surface of the valve case is provided with an inclination that lowers the storage portion side, and the pot is inclined toward the discharge port side by a certain amount or more. At this time, in the liquid leakage prevention device for the pot, in which the spherical valve housed in the housing moves to close the liquid outlet, a floating body is provided at the liquid inlet portion, and the floating body is moved by the flow of liquid. A device for preventing leakage of liquid in a pot, wherein the device is adapted to float in front of the storage section. 5. The levitation body is accommodated in a guide portion below a liquid inlet so as to be vertically movable, a liquid passage gap is provided in the levitation body or the guide portion, and a protrusion is provided on an upper portion of the levitation body. The liquid leakage prevention device for a pot according to claim 4, wherein the protrusion is configured to protrude toward the front of the storage portion when the container floats. 6. The levitation body is rotatably attached to the bottom surface of the storage section entrance by a hinge, and the levitation body rises from the rotation start point in a state of falling on the liquid inlet to the front of the storage section entrance. 5. The pot liquid leakage prevention device according to claim 4, wherein the device is set so as to have a turning end point in the open state. 7. A valve case is provided in the middle of a liquid passage provided between the lower part of the inner container and the discharge port at the upper part of the exterior body, a liquid inlet is provided at the bottom of the valve case, and a liquid outlet is provided at one end. On the bottom surface of the case between the liquid inlet and the liquid outlet, a storage portion of the spherical valve opened to the liquid outlet side is provided so as to face the liquid outlet, and the bottom surface of the valve case is inclined so that the storage portion side becomes low. When the pot is tilted toward the discharge port side by a certain amount or more, the spherical valve accommodated in the accommodating portion is moved to close the liquid outlet, and the end face of the valve case around the liquid outlet causes a flow A device for preventing leakage of liquid in a pot, in which the portion is bent toward the storage portion side. 8. The pot liquid leakage prevention device according to claim 1, wherein a liquid recirculation hole is provided in the bottom of the storage portion.