JPH11344141A - Expandable drink feeding valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an expandable drink feeding valve which can manually and easily operated for opening a drink feeding valve and a bubble releasing valve which are closed under high pressure by inflow of carbondioxide gas. SOLUTION: A feeding valve seat 16 arranged on a bottom surface of a float chamber 15 housing a float 21 is connected to a feed outlet 4. A charging port 3 is connected to the bottom of the float chamber 15. An upper chamber 26 above the float chamber 15 is connected to an exhaust valve seat 28 arranged on the top of the float chamber 15. An opening/closing valve esat 31 arranged on the bottom surface of the upper chamber 26 is connected to an exhaust port 6. A feeding valve element 23 is arranged on the lower side of the float 21, while an exhaust valve element 30 is arranged on the upper side. An elevating body 50 penetrating a partition wall 27 between the float chamber and the upper chamber is provided with an opening/closing valve element 60 energized downward by means of a compression spring 61, and a hanging piece 52 engaged with the float 21. A hanging piece 68 engaged with the elevating body 50 is arranged on a lower portion of a pull-up bar 63 fixed to a cap 11 screwed with an upper cylindrical part 9a of an upper casing 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a delivery valve for delivering a sparkling beverage such as draft beer from a storage container.

[0002]

2. Description of the Related Art In general, a beer barrel storing draft beer (hereinafter simply referred to as a barrel) is filled with carbon dioxide gas at the upper part of the liquid level of the beer. When connecting a beer hose to pour beer, carbon dioxide gas is injected into the barrel from another carbon dioxide gas cylinder, and the ascending flow which rises in the pour pipe vertically attached to the pouring tool and reaches near the bottom of the barrel. And the beer is pumped out and flows out of the barrel via the pouring tool. However, when the cask becomes empty, the carbon dioxide gas in the cask flows out through the pouring pipe and becomes a foam and is sent to the dispenser. A configuration has been adopted in which a delivery valve that automatically closes when carbon dioxide gas flows out is attached, and the beer hose is connected to the delivery port of the delivery valve. The delivery valve is of a float valve type in which the float housed in the casing is opened by raising the float by the buoyancy of the beer, and is closed by the lowering of the float having a reduced buoyancy when carbon dioxide gas flows in. The carbon dioxide gas and bubbles in the casing are released to the outside by a manually operated relief valve provided in the above. However, foam flows out of the barrel not only when the above barrel is almost empty, but also when the temperature of the beer in the barrel rises due to the ambient temperature of the barrel, the carbon dioxide gas in the beer becomes bubbles. In order to prevent the shut-off valve from being frequently operated and interrupting the injection of beer into the mug in the dispenser section in summer or the like, the relief valve must be manually operated occasionally in order to prevent the beer from being injected into the mug. There was a problem that did not become.

Accordingly, the present applicant has filed a Japanese Patent Application No. 9-25752.
An application for solving this problem is filed in Patent Application No. 6. According to the patent application, while the beverage is being supplied to the float chamber, the valve for exhausting bubbles is closed by raising the float, and when bubbles flow into the float chamber due to temperature rise, the float loses buoyancy and descends. When the bubble exhaust valve is opened to discharge the bubbles to the outside and the beverage runs out and only the carbon dioxide gas flows into the float chamber, the beverage delivery valve and the bubble opening / closing valve are closed by closing the float and the carbon dioxide gas is closed. After the beverage is filled, the lifting rod is manually pulled up to open the beverage delivery valve and the bubble opening / closing valve that engage with the lifting rod to reduce the float chamber pressure. It is configured to allow the beverage to be released.

[0004] However, when the pulling rod is lifted to open the beverage delivery valve and the bubble opening / closing valve which are closed by the inflow of carbon dioxide gas, the two valve seats are closed and closed by a strong force due to the float chamber pressure. In order to release it, it is necessary to apply a large force to the pulling rod, and it is difficult to manually pull up the pulling rod, thereby deteriorating workability. In addition, the on-off valve provided in the exhaust passage includes a check ball, a spring, and an O-ring,
Since the number of parts is relatively large, the cost is high, and the parts are small, the assemblability is poor.In addition, it is necessary to hit the seat surface to secure the sealability of the check ball, and it takes time to maintain the function. I needed it.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and easily opens a beverage delivery valve and a bubble opening / closing valve which are closed at a high pressure by the inflow of carbon dioxide gas even by manual operation. It is an object of the present invention to provide an effervescent beverage delivery valve having a structure capable of performing the above operations.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is a float-type casing having a filling port and a discharge port at a lower portion and an exhaust port at an upper portion. A float chamber for accommodating the float in a vertically movable manner, connecting an upwardly opening delivery valve seat provided on the bottom surface of the float chamber to the delivery port by an outflow path, and providing the float provided at the bottom of the float chamber. An inlet opening toward the chamber and the inlet are connected by an inflow path, and an upper chamber provided above the float chamber and a downwardly-opening exhaust valve seat provided on the top surface of the float chamber are provided. A first exhaust path, an upwardly-opening opening / closing valve seat provided on a bottom portion of the upper chamber, and the exhaust port connected by a second exhaust path, and a lower part of the float; Delivery valve seated on delivery valve seat Provided on the upper part of the float, an exhaust valve body which is seated on the exhaust valve seat when the float is raised, and is supported so as to be able to move up and down through a partition wall between the float chamber and the upper chamber. An opening / closing valve body which is urged downward by a spring and is seated on the opening / closing valve seat when the elevating body descends is provided on an upper part of the elevating body, and a lower surface of a locking part provided on the float below the elevating body. A hooking piece portion is provided, which is supported up and down freely through the top wall portion of the upper chamber, and an upper portion is provided at a lower portion of a pulling rod fixed to a cap screwed into an upper cylindrical portion of the upper casing. A hooking piece is provided which engages with the lower surface of the locking portion provided on the elevating body.

[0007] The vertical direction in the present invention refers to the vertical direction when the sparkling beverage delivery valve is in use.

[0008] In the sparkling beverage delivery valve of the present invention,
In order to discharge gas such as air or gas accumulated in the upper part of the float chamber when the float is at the lower end position when replacing the storage container, the lifting rod is manually operated to raise the elevating body, and the opening / closing valve seat is opened. Is opened, and the gas is discharged from the exhaust port through the first exhaust path, the upper chamber, and the second exhaust path. As the gas is discharged, the beverage flows into the float chamber from the inflow port, and the float is also pulled up through the elevating body, so that the delivery valve seat is opened, and the beverage pressure-fed from the storage container is filled with the inflow port. Flows into the float chamber through the channel and inlet,
The float is sent to the outside from the outlet through the outflow passage, and the float rises by the buoyancy of the beverage to reach the rising end position, and the exhaust valve body is seated on the exhaust valve seat to close the first exhaust passage.

During the above-mentioned beverage delivery, bubbles flow into the float chamber due to a rise in the temperature of the beverage container, and when the bubbles accumulate in the upper part of the float chamber, the float descends due to insufficient buoyancy, and the exhaust valve body is moved to the exhaust valve seat. , The bubbles are discharged from the exhaust port via the first exhaust path, the upper chamber, and the second exhaust path, and the float reaches the rising end position again by buoyancy due to the discharge of the bubbles and the exhaust. The valve body closes the exhaust valve seat, ending one cycle of automatic foam discharge. The above cycle is repeated according to the inflow of the foam into the float chamber, and the automatic discharge of the foam is performed.

When a large amount of gas flows into the float chamber as the storage container approaches empty, the float descends due to lack of buoyancy and the exhaust valve seat opens, but the float reaches the descending end position due to the continuous inflow of gas. When the delivery valve seat is closed, the lifting / lowering body is also driven downward by the lowering of the float, and the opening / closing valve body is seated on the opening / closing valve seat, so that the gas is prevented from continuously flowing out from the exhaust port, and By closing the delivery valve seat, gas and bubbles do not fill the pipes connected to the outflow passage and the delivery port.

In the present invention, the first exhaust path and the second exhaust path may have various flow path configurations such as providing a throttle. If each exhaust path is configured so that the pressure loss of the exhaust path (the pressure loss when gas or gas containing bubbles flows) is greater than the pressure loss of the first exhaust path, the internal pressure of the upper chamber will be reduced to a float. Since the pressure becomes equal to or higher than the intermediate value between the internal pressure of the chamber and the atmospheric pressure at the outlet of the exhaust port, the lifting force due to the differential pressure between these two internal pressures applied to the elevating body can be reduced, and this lifting force hinders the lowering operation of the float. This is preferable because a smooth operation of the float can be obtained without any problem.

In the present invention, if the second exhaust passage is provided with an on-off valve for opening and closing the exhaust passage, the upper chamber is closed by closing the on-off valve. This is preferable because it is possible to shut off air from the outside air and prevent invasion of various bacteria from the outside air into the upper chamber. Furthermore, if this on-off valve is a rubber check valve, the number of parts is small, the configuration can be made inexpensively, the assembling is easy, and no trouble is required to maintain the sealing function such as hitting the check ball.
Even if the valve portion sticks due to the gelatinization of the effervescent beverage component, the structure is easily opened by the pressure of bubbles or carbon dioxide gas in the exhaust path, so that the sticking can be prevented, which is preferable.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 1 denotes a beer delivery valve, and each part except for a spring, an O-ring, an oil seal, and the like described later is made of a plastic material. A casing 2 forming the outer shape of the beer delivery valve 1 is a short cylindrical lower casing 5 having an inlet 3 and an outlet 4.
A middle casing 7 having a short cylindrical shape with an upper part closed and a cylindrical part with a middle part to a lower part opening downward and having an exhaust port 6 at the upper part is screwed and connected by a screw part 8. A short cylindrical upper casing 9 is screwed into the upper cylindrical portion 7a of the casing 7 with a screw portion 10, and further, the upper cylindrical portion 9a of the upper casing 9 is screwed.
And a cap 11 is screwed into the cap. O-rings 13 and 14 are attached to portions of the above-mentioned screw connection portions where internal pressure is applied.

The float chamber 15 formed between the middle casing 7 and the lower casing 5 is surrounded by a cylindrical peripheral wall 7b of the middle casing 7, and the upper surface of the lower casing 5 forms a bottom 15a of the float chamber 15. doing.
A delivery valve seat 16 that opens upward is provided at the center of the bottom portion 15a, and the delivery valve seat 16 and the delivery port 4 are connected by an outflow passage 17. At least the peripheral wall 7b of the middle casing 7 is preferably made of a transparent plastic material so that the situation inside the float chamber 15 can be seen from the outside. An inlet 18 provided at the bottom of the float chamber 15 is connected to the inlet 3 by an inlet 19.

A float 21 in the form of a short cylinder is accommodated in the float chamber 15, and the tip of a vertically extending ridge (not shown) protruding from the outer periphery of the float 21 is provided with a small amount of clearance. A vertically extending guide rib 7c, which comes into sliding contact with the inner surface of the peripheral wall 7b and protrudes from the peripheral wall 7b of the float chamber, fits into a groove 21b provided on the outer periphery of the float 21 with a small amount of clearance.
Is guided by the peripheral wall 7b so as to be able to move up and down while the center axis 22 is maintained substantially vertical and rotation around the center axis 22 is prevented. At the lower part of the float 21, a downward conical delivery valve body 23 which is seated on the delivery valve seat 16 when the float is lowered is protruded. An O-ring 24 for sealing between the delivery valve body 23 and the valve seat surface is fitted. Float 21
, A metal weight 21c for adjusting buoyancy is incorporated in a state sandwiched between a plurality of ribs 21d provided in the float and a lower portion of the float 21, and the float 21 is divided for this assembly. It has an assembled structure.

The upper part of the middle casing 7 and the upper casing 9 are provided above the float chamber 15 of the middle casing 7.
To form an upper chamber 26, which is separated from the float chamber 15 by a partition wall 27. A downwardly-opening exhaust valve seat 28 provided on the top surface 15 b of the float chamber 15.
Are connected to the upper chamber 26 by a first exhaust path 29. The upper surface of the float 21 is provided with a rubber exhaust valve 3 that is seated on the exhaust valve seat 28 when the float is raised.
0 is attached. The opening / closing valve seat 31 provided on the bottom surface 26a of the upper chamber 26 and opening upward is formed by a second exhaust passage 32 provided in the partition 27 and second exhaust passages 33 and 34 provided in a rod 36 described later. It is connected to the exhaust port 6.

On the upper side surface of the middle casing 7,
As shown in FIG. 2, a bent rod-shaped rod 36 is press-fitted, and second exhaust passages 33 and 34 are formed in the rod 36. A check valve 40 made of rubber is press-fitted into the enlarged diameter portion 33a of the second exhaust passage 33 so as to open the passage toward the exhaust port 6 (FIG. 1) and close the passage in the opposite direction. . The check valve 40 has a tapered cone at the downstream end of the flow, and a cut 40b is made in parallel with the conical surface 40a. In the case of reverse flow, the cut 40b is closed to block the fluid. An annular projection 40 is provided on the outer periphery of the check valve 40.
The protrusion 40c is press-fitted into the enlarged-diameter portion 33a to maintain the airtightness between the passages.
Even if the adhesive substance adheres to the cuts 40b due to the gelatinization of the effervescent beverage component, the adhesive is easily opened by the internal pressure, and thus the adhesion is prevented.

Then, a second valve from the check valve 40 to the exhaust port 6
Pressure loss of the second exhaust path when carbon dioxide gas or bubbled carbon dioxide gas flows through the exhaust path, that is, the second exhaust path 3
The pressure loss due to the flow path resistance of 2, 33, 34 is larger than the pressure loss when the carbon dioxide gas or the bubbled carbon dioxide gas flows through the first exhaust path 29, so that the flow path inner diameter of each part and the flow path The length is selected.

On the other hand, from the float chamber 15 to the upper chamber 26, an elevating body 50 vertically extending through the partition wall 27 is provided, and its shaft portion 51 slides vertically in a hole 54 provided in the partition wall 27. It is guided freely and is slidably sealed by an oil seal 80. A column-shaped hooking piece 52 fixed to the lower portion of the shaft portion 51 fits into a hole 56 provided at the center of the float 21 and closed at the top and bottom, with a clearance. The hook piece 52 (upper surface) engages with the lower surface of the stopper 57. The hole 56 is formed in the float chamber 15 by the communication hole 56a.
Is in communication with Further, as shown in FIG. 3, the block body 53 formed on the upper part of the elevating body 50 is
Both sides are guided by guide plates 58, 58 fixed to the upper cylindrical portion 7a, whereby the elevating body 50 is guided so as to be able to move up and down while being prevented from rotating around a vertical axis. A large diameter portion of an opening / closing valve body 60 (FIG. 1) having a rubber valve body 60a at the lower end is accommodated in a hole 59 provided in the block body portion 53 so as to be vertically movable. Is urged downward by a compression spring 61, and the opening / closing valve element 60 (specifically, the valve element 60a) is
At the time of the descent of 0, it is seated on the opening / closing valve seat 31.

A vertically extending pull-up bar 63 is provided through the top wall 9b of the upper casing 9 forming the top wall of the upper chamber 26, and a shaft 64 is attached to the top wall 9b. It is slidably guided by the oil seal 81 while being slidably guided in the up and down direction in the hole 65 provided,
The upper end of the pulling bar 63 is fixed to the cap 11. A pair of protrusions 11a provided on the inner surface of the cap 11
Are screwed into a pair of cam grooves 9c engraved on the outer periphery of the upper cylindrical portion 9a of the upper casing 9, and when the cap 11 is rotated, the cap 11 is displaced upward to pull up the pulling rod 63 upward. It is configured. The cap 11 has a cylindrical torsion coil spring 7 disposed in the upper cylindrical portion 9a and having both ends engaged with the cap 11 and the upper cylindrical portion 9a, respectively.
2 is configured to return to the original position naturally.
The disk-shaped hooking piece 68 fixed to the lower part of the shaft 64 fits into a hole 69 (see FIG. 3) provided in the block body 53 of the elevating body 50 with a clearance. The hooking piece 68 (upper surface) is engaged with the lower surface of the locking portion 70 composed of the closing lid.

When the beer delivery valve 1 is attached to the upper part of a new barrel and the supply of beer into the valve is started,
The float chamber 15 is filled with air and carbon dioxide from the barrel before replacement, and as shown in FIG. 4, the float 21 is lowered by its own weight and the delivery valve 23 is seated on the delivery valve seat 16. The elevating body 50 is lowered by the engagement between the hook piece 52 and the locking portion 57 of the float 21, and the opening / closing valve body 60 is opened.
The compression spring 61 is seated on the opening / closing valve seat 31 with a small amount of deflection, and the pulling bar 63 is also at the lowered position together with the cap 11 urged by the cylindrical torsion coil spring 72. The beer pumped from a pouring tool (not shown) flows into the float chamber 15 through the inflow path 19 and the inlet 18, and the float chamber 15 has a pressure of 2 kg / cm 2 close to the carbon dioxide gas pressure.
The pressure rises to about
Is pressed by a strong downward force and is maintained at the lower end position.

Then, as shown in FIG. 5, when the cap 11 to which the lifting body 63 and the lifting rod 63 as the lifting drive means of the float 21 are fixed is rotated counterclockwise, the lifting rod 63 first rises. Then, the lifting member 50 is driven upward by the engagement of the hook piece 68 with the locking portion 70, and the float 21 is driven upward via the lifting member 50, and the delivery valve element 23 is driven.
Is separated from the delivery valve seat 16 and subsequently the opening / closing valve body 60
Is separated from the opening / closing valve seat 31, so that the air and carbon dioxide in the float chamber 15 pass from the exhaust valve seat 28 in the open state to the first exhaust path 29, the upper chamber 26 and the opening / closing valve seat 31 in the open state. 2 exhaust path 32, check valve 40, second exhaust path 3
The beer is discharged from the exhaust port 6 via 3 and 34, and the beer flows into the float chamber 15 from the inflow port 18. At this time, in the check valve 40, the valve portion (cut 4
0a) (FIG. 2) is automatically opened and opened.

As a result, the pressure in the float chamber 15 decreases, and the pressure in the outflow passage 17 which is almost full of beer before the barrel replacement is increased by closing the dispenser portion, so that the difference between the two pressures is reduced. , The float 21 is driven by the buoyancy of the beer and rises, and the delivery valve 23
Goes far away from the delivery valve seat 16, the exhaust valve body 30 is seated on the exhaust valve seat 28 by the float 21 which has reached the rising end position as shown in FIG. 1, and the first exhaust path 29 is closed. Becomes By opening the above-mentioned delivery valve seat 16, beer can be delivered from the delivery port 4 via the outflow channel 17, and beer from the barrel is delivered via the delivery valve 1 in accordance with the injection of beer into the mug in the dispenser section. Is done. In addition, the lifting body 50 released from the restraint by the float 21 by the lifting of the float 21 is pushed up by a lifting force due to a differential pressure between the internal pressure of the float chamber 15 and the internal pressure of the upper chamber 26 and is held at the rising end position. . The self-weight of the elevating body 50 (including the opening / closing valve body 60) is selected so as to be smaller than the above-mentioned lifting force.

During the above-mentioned use, when the temperature in the barrel rises due to the ambient temperature of the barrel and the generated foam flows into the float chamber 15, the foam accumulates in the upper part of the float chamber 15, and this foam is accumulated. Reaches a predetermined amount (about 50 to 90% of the total height of the float chamber 15 depending on the specific gravity of the float 21 and the weight of the weight 21c), the buoyancy acting on the float 21 becomes less than the float's own weight. Float room 1
5 is pressurized with carbon dioxide gas, the exhaust valve 30 seated on the exhaust valve seat 28 is provided with the float chamber 1.
The float 21 is hung by the suction force acting according to the pressure difference between the internal pressure (carbon dioxide gas pressure) of the upper chamber 5 and the internal pressure of the upper chamber 26 which is close to the atmospheric pressure. Since it is set larger, the float 21 descends from the rising end position. As a result, the exhaust valve body 30 is separated from the exhaust valve seat 28, so that carbon dioxide gas is automatically discharged from the exhaust port 6 through the upper chamber 26 and the open / close valve seat 31 in the open state.

When the foam in the float chamber 15 is almost completely discharged, the float 21 reaches the rising end position again due to the filling of the beer, the exhaust valve seat 28 is closed again, and one of the foam discharges is performed.
When the cycle is over and the bubbles continue to flow from the barrel into the float chamber 15, the same automatic discharging operation of the bubbles as described above is repeated.

As described above, before the float 21 descends to the lower end position, the foam is moved from the exhaust valve seat 28 to the upper chamber 26,
Since the beer is automatically discharged through the open / close valve seat 31, the beer delivery from the outlet 4 is not interrupted.

When the barrel approaches the sky, a large amount of carbon dioxide gas in the barrel flows into the float chamber 15, so that the float 21 descends due to lack of buoyancy and the exhaust valve seat 28 opens, but the carbon dioxide gas continuously flows in. When the float 21 reaches the vicinity of the lower end position, the lifting body 50 driven down by the float 21
Is lowered and the opening / closing valve body 60 is seated on the opening / closing valve seat 31, so that the carbon dioxide gas does not flow continuously from the carbon dioxide gas cylinder through the inside of the barrel and through the beer delivery valve 1 to the exhaust port 6 to be wasted. Next, when the float 21 reaches the lower end position, the delivery valve seat 16 is closed by the delivery valve body 23, so that the outflow passage 17 and the beer hose disposed downstream thereof are filled with carbon dioxide gas and bubbles. There is no need to defoam the beer hose even after exchanging the barrels, which saves labor and no waste of beer.

As described above, the pressure loss in the second exhaust passage from the opening / closing valve seat 31 to the exhaust port 6 is determined by the exhaust valve seat 2.
Since the pressure loss in the first exhaust passage 29 from the eighth section to the upper chamber 26 is larger than the pressure loss, the internal pressure of the upper chamber 26 is equal to or higher than the intermediate value between the internal pressure of the float chamber 15 and the atmospheric pressure. Lifting / lowering body 5 obtained by multiplying the differential pressure between the two internal pressures by the cross-sectional area of shaft portion 51
The lifting force acting on zero is small, and the float 21 is not hindered by the lifting force during the lowering operation (particularly during the lowering operation near the lower end), so that the float 21 can operate quickly and smoothly.

If the pressure loss in the second exhaust path is selected to be smaller than the pressure loss in the first exhaust path, it is conceivable to increase the own weight of the elevating body 50 in order to reduce the effect of the pushing-up force. The inertia of the elevating body 50 increases, and the operation of the entire valve becomes slow.

In each operation step of the beer delivery valve 1 described above, except when carbon dioxide or foamed carbon dioxide mixed with bubbles is exhausted from the exhaust port 6, the check valve provided in the second exhaust path 32 to 34 is provided. Since the valve 40 is closed and shuts off between the exhaust port 6 communicating with the outside air and the upper chamber 26, it is possible to prevent bacteria in the outside air from entering the upper chamber 26 and propagating.
It is hygienic. Further, the check valve 40 of this example is
The valve opens automatically when the internal pressure rises, so there is no need for manual opening and closing operation, so there is no need for labor.In addition, the valve opens only when the foam is discharged, and closes other times to infiltrate the above bacteria for a long time. It is particularly preferable since an effect of preventing it can be obtained.

The present invention is also applicable to a delivery valve for sparkling beverages other than beer, such as sparkling wine and non-alcoholic sparkling sweet drinking water.

[0032]

As described above, according to the first to third aspects of the present invention, the bubbles accumulated in the casing during the delivery of the sparkling beverage in the float-up state are reduced by the exhaust valve body which descends with the float. As the air is discharged from the exhaust port through the upper chamber and the open / close valve seat portion in the open state when separated from the exhaust valve seat, the foam flowing out of the storage container is automatically discharged to the outside and the foaming beverage is delivered. Can be prevented, the beverage can be smoothly delivered, and the manual bubble removal during the delivery is unnecessary and troublesome.

When a large amount of gas for beverage pumping flows into the float chamber as the storage container approaches the empty state, the exhaust valve seat opens but the opening / closing valve body of the elevating body is opened and closed by the lowering of the float. Therefore, the gas is prevented from being continuously discharged from the exhaust port and wasted. In addition, the air and gas discharge in the float chamber when the storage container is replaced, the opening of the delivery valve seat by opening the float (starting of beverage delivery), the lifting operation of the lifting rod fixed to the cap, and the operation of lifting the cap It can be performed by rotation, does not require a particularly large operation force, is easy to operate, and does not cause an operation error.

In addition to the above effects, according to the second aspect of the present invention, it is possible to suppress the lifting force generated in the elevating body due to the internal pressure of the casing, and the lifting operation does not hinder the lowering operation of the float. Thus, an effervescent beverage delivery valve that performs quick and reliable operation is obtained.

In addition to the above effects, according to the third aspect of the present invention, the upper chamber can be shut off from the atmosphere by closing the check valve, and bacteria in the outside air can enter the upper chamber. A sanitary effervescent beverage delivery valve that can prevent propagation is obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a sparkling beverage delivery valve according to an embodiment of the present invention.

FIG. 2 is an enlarged partial cross-sectional view of a check valve according to one embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a longitudinal sectional view showing an operation state of the sparkling beverage delivery valve of FIG. 1;

FIG. 5 is a longitudinal sectional view showing an operation state of the sparkling beverage delivery valve of FIG. 1;

[Explanation of symbols]

1 ... beer delivery valve, 2 ... casing, 3 ... inlet, 4 ...
Outlet, 6 ... exhaust port, 9 ... upper casing, 9a ... upper cylindrical part, 11 ... cap, 15 ... float chamber, 15a ...
Bottom portion, 15b top surface portion, 16 valve seat for delivery, 17 outlet channel, 18 inlet port, 19 inlet channel, 21 float,
23: delivery valve element, 26: upper chamber, 26a: bottom part, 2
7 ... Partition wall, 28 ... Exhaust valve seat, 29 ... First exhaust path, 30
... Exhaust valve element, 31 ... Open / close valve seat, 32 ... Second exhaust path,
33: second exhaust path, 34: second exhaust path, 36: rod, 4
0: check valve, 50: elevating body, 52: hook piece, 53: block body, 60: valve for opening and closing, 60a: valve, 61 ...
Compression spring, 63: pulling bar, 68: hooking piece, 70: locking part

Claims (3)

[Claims] 1. A float chamber for storing a float in a vertically movable manner is provided at an intermediate portion in a vertical direction of a casing having an inlet and an outlet at a lower portion and an exhaust port at an upper portion, and provided at a bottom portion of the float chamber. An upwardly opening delivery valve seat and the delivery port are connected by an outflow path, and an inflow port opened toward the float chamber provided at the bottom of the float chamber and the injection port are connected by an inflow path, An upper chamber provided above the float chamber and a downwardly-opening exhaust valve seat provided on a top surface of the float chamber are connected by a first exhaust path, and an upwardly-opened opening provided on a bottom surface of the upper chamber is provided. The opening and closing valve seat and the exhaust port are connected by a second exhaust path, and at a lower portion of the float,
A delivery valve body that sits on the delivery valve seat when the float is lowered is provided, and an exhaust valve body that sits on the exhaust valve seat when the float is raised is provided above the float, and the float chamber and the upper part are provided. An opening / closing valve body that is urged downward by a spring and seats on the opening / closing valve seat when the elevating body descends is provided on the upper part of the elevating body that is supported so as to be able to move up and down through a partition between the chamber and At the lower part of the elevating body, there is provided a hooking piece that engages with the lower surface of the locking part provided on the float, and is supported so as to be able to ascend and descend through the top wall of the upper chamber, and the upper part is the upper cylinder of the upper casing. An effervescent beverage delivery valve, characterized in that a hooking piece portion is provided below a pulling rod fixed to a cap screwed into a portion, the hooking piece portion engaging with a lower surface of a locking portion provided on the elevating body. 2. The sparkling beverage delivery valve according to claim 1, wherein a pressure loss in the second exhaust passage is larger than a pressure loss in the first exhaust passage. 3. The sparkling beverage delivery valve according to claim 1, wherein a rubber check valve for opening and closing the second exhaust path is provided in the second exhaust path.