JP2000283303A - Liquid current control cock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure and to prevent the leakage of liquid and the intrusion of air into a container by slidably and water-tightly fitting a plunger knob to a cylindrical barrel along its cylindrical wall inner periphery, and forming an outer peripheral skirt on an end opposite to a receiving seal integrally provided with a seal surface. SOLUTION: A plunger knob 38 is inserted into a cylindrical barrel 12 body through an opened end 18 of the cylindrical ballel 12 body. The plunger knob 38 includes an outer peripheral skirt 40 and an end wall 42 projecting in the radial outward direction. The plunger knob 38 is provided with a seal surface 52 conically inclined on an end part facing to an opened end 16 of the cylindrical barrel 12 body. A seal surface 52 of the plunger knob 38 is inclined toward the direction of the radial inside and a receiving seat 36, and a cylindrical outer peripheral surface 58 of the plunger knob and an inner peripheral surface 60 of a cylindrical wall 14 of the cylindrical barrel 12 body are closely joined corresponding to the receiving seat 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid flow control faucet, and more particularly to a liquid flow control faucet including a cylindrical barrel formed by a cylindrical wall having opposed open ends, one of which has an open end. An inlet end is formed, and a receiving seat is formed at an open end of the cylindrical wall. Further, a branch is formed between the opposed open ends to the cylindrical barrel from a streamline connecting these open ends. An improvement in the type of faucet is provided in which the outlet is oriented in the opposite direction through the seat and opposite the open end.

[0002]

BACKGROUND OF THE INVENTION So-called "bag-in-box" type containers are widely used as packaging containers for wine, fruit juice, and other liquids. The liquids are contained in a plastic flexible bag, which is placed in a cardboard box.

[0003] The flexible bag is provided with a faucet which can be opened to control the flow of the liquid therein and the flow rate thereof can be controlled. The entire faucet is secured to the flexible bag. Alternatively, a gasket or flange can be mounted on the flexible bag and the faucet can be loosely mounted on the cardboard bag.

[0004]

The faucet has a structure as simple as possible, is inexpensive, and has no leakage or dripping of liquid so that air does not enter the container. Must be something. Accordingly, an object of the present invention is to provide a faucet capable of solving the above-mentioned problem more effectively than other conventional faucets.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention includes a cylindrical barrel formed by a cylindrical wall having opposed open ends, one of which has an inlet. A receiving seat is formed at an open end which forms an end and an inlet end of the cylindrical wall, and further, the open end is provided on the cylindrical barrel between the opposed open ends. An outlet providing an outlet in a direction branched from a streamline connecting the outlet, the faucet arranged on the opposite side to the opening end forming the inlet end via the receiving seat, further comprising a hollow It includes a cylindrical plunger knob, which is
An outer peripheral skirt that is slidably and watertightly fitted along the inner periphery of the cylindrical wall with respect to the cylindrical barrel, and that is fitted in sliding contact with the outside of the cylindrical barrel, integrally, A sealing surface for seating on the seat is formed at each end facing the seat so that during use it can move along the cylindrical wall of the cylindrical barrel. Wherein the sealing surface is joined to the seat across the outlet, thereby blocking the open end forming the inlet end from the outlet, the first or closed position; A second or open position which retreats from the seat and allows the liquid to flow from the open end forming the inlet end to the outlet by being spaced from the seat. And to be reversibly moved between, providing faucet.

According to the present invention, the plunger knob is slidably fitted into the cylindrical barrel, and the sealing surface at the tip of the plunger knob is sealed to the open end forming the inlet end of the thin barrel. By sliding in the axial direction so as to be attached to and detached from the receiving seat formed opposite to the surface, the outlet formed in the cylindrical barrel and the opening end forming the inlet end are blocked or communicated. By adjusting the degree of advance and retreat of the plunger knob, the flow rate at which the liquid is discharged can be controlled.

In this invention, at least the plunger knob in the vicinity of the outlet needs to have a hollow cylindrical shape so that the diameter can be expanded when the hydraulic pressure is applied radially outward from the inside. This, at the same time, also contributes to savings in manufacturing materials. In this invention, the receiving seat is inclined so as to face radially outward with respect to the sealing surface of the plunger knob, and the sealing surface of the plunger knob is inclined so as to face radially inward with the receiving seat. Since the receiving seat is configured to be joined in a form to be fitted, when the plunger knob is moved in the closing direction to press the receiving seat against the sealing surface, the hollow cylindrical portion of the plunger knob is
It is urged radially outward by the inclination of the receiving seat and the sealing surface, and the pressure contact of the cylindrical barrel to the inner periphery of the cylinder wall becomes tighter.

According to the present invention, if a guide means for rotatably guiding the plunger knob along the spiral path is included, control can be performed smoothly and finely in accordance with the spiral pitch. . Specifically, the guide means includes at least one helical groove in the cylindrical wall, and the plunger knob includes one or more protrusions individually slidingly engaging the helical groove. Configure to include.

In these arrangements, it is preferable that the outlet is provided with a liquid inlet.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of a faucet of the present invention, showing a state in which the faucet is closed. FIG. 2 is also a vertical sectional view showing a state in which the faucet is opened. FIG. 3 is a longitudinal sectional view of a cylindrical plunger knob which is detachably attached to the faucet shown in FIG.

First, as shown in FIG. 1, the faucet of the present invention is designated by reference numeral 10. The faucet 10 includes a hollow cylindrical barrel 12 having open ends 16 and 18 at opposite ends opposite to each other. Has a disk-shaped flange 2 that extends outward in the radial direction
0 is integrally formed, and a sleeve 22 is formed to extend further in the axial direction of the flange 20. The sleeve 22 has a diameter greater than the diameter of the cylindrical barrel 12 and is
Extends to the opposite side in the axial direction via the flange 20. The sleeve 22 has a bag 24, as described below.
Is pressed and pressed. An annular collar 26 protrudes and develops radially outward from an axially middle portion of the cylindrical barrel 12 main body.

Between the collar 26 of the barrel 12 and the open end 18 furthest away therefrom, the outer periphery of the barrel 12 has a double start spiral groove.
cool) 30 and 32 are formed. Each helical groove is formed to extend approximately 180 °, ie, a half turn, over its entire length. The spiral grooves 30 and 32 are
Starting near 6 and ending close to the open end 28 of the cylindrical barrel 12 body.

An outlet 34 is provided in the body of the cylindrical barrel 12 between the collar 26 and the flange 20. The outlet 34 is provided with a cylindrical injection port 35. The liquid injection port 35 can be provided as desired and is not always essential. In short, only the outlet 34 needs to be present. The body of the cylindrical barrel 12 further includes a valve seat in the vicinity of the flange 20, as a receiving seat 36, which is inclined so as to face outward in the radial direction and toward the open end 18. The receiving seat 36 will be described in detail below.

The open end 18 of the body of the cylindrical barrel 12
, The plunger knob 38 is fitted into the cylindrical barrel 12 main body. This plunger knob 38
Include an outer peripheral skirt 40 and an end wall 42 that protrudes radially outward. The outer peripheral skirt 40 has two radially inwardly directed projections 44 on its inner peripheral surface.
46 is provided. The projections 44 and 46 are arranged so as to be slidably engaged with the spiral grooves 30 and 32.

The plunger knob 38 has the shape of a generally round hollow cylinder, and its middle part in the longitudinal direction is closed and blocked by an internal transverse wall 48. The internal transverse wall 48 has a conical recess 50 on the side facing the open end 16 of the body of the cylindrical barrel 12. The plunger knob 38 has a conical inclined sealing surface 52 at the end facing the open end 16 of the body of the cylindrical barrel 12. The sealing surface 52 of the plunger knob 38 is inclined at an angle indicated by “α” in FIG. 3 and faces the radially inner side and the direction of the receiving seat 36, and corresponds to the receiving seat 36.

Receiving seat 36 facing this sealing surface 52
The barrel seat again has a conical surface,
The angle with respect to the inner peripheral surface of the cylindrical barrel 12 main body facing the outer side in the radial direction and the direction of the receiving seat 36 is also “α” similarly to the sealing surface 52, and corresponds to the sealing surface 52. The faucet 10 described above is basically used for a so-called "bag-in-box" type liquid packaging container. In such a packaging container, the liquid poured out of it is stored in a flexible bag made of a plastic material (the bag is indicated by reference numeral 24 in the drawing). One of the walls of the bag 24 has a circular hole stamped and formed therein, and a collar 54 having a sleeve portion is welded to match the circular hole. Such collar 54 and bag 2
According to the connection with the fourth member 4, any liquid leakage between them can be prevented. A closing cap 56 having a cylinder portion 58 and an end wall 60 is fixed by inserting the cylinder portion into an open end of the plunger knob 38.

When the faucet 10 is closed as shown in FIG. 1, the sleeve 22 and the portion of the main body of the cylindrical barrel 12 from the internal transverse wall 48 toward the bag 24 are filled with liquid, and the cylindrical barrel 12 is closed. Open end 16 and bag 24
Communicates with the interior of the When the plunger knob 38 is rotated counterclockwise from the position shown in FIG. 1 to the position shown in FIG. 2, the cooperative sliding of the spiral grooves 30, 32 and the projections 44, 46 adds to the rotational movement. The axial movement is caused. The plunger knob 38 moves rightward from the valve seat serving as the receiving seat 36. Thus, the sealing surface 52 of the plunger knob 38 moves away from the receiving seat 36 until the plunger knob 38 no longer blocks the outlet 34, and the outlet 34 and the bag 2
4 leads to communication with the inside. This plunger knob 38
Is then in the open position (FIG. 2), and the liquid in the bag 24 flows into the outlet 34 through the open end 16 and flows out of the faucet 10 through the liquid inlet 35.

When the plunger knob 38 is turned clockwise, it moves in the direction of the flange 20 to the position shown in FIG. As the sealing surface 52 of the plunger knob 38 moves past the outlet 34, the outlet 34 is shut off and reduces the likelihood of droplets dropping after the wiping operation is performed and the faucet is closed. Thereafter, the sealing surface 52 eventually rejoins the receiving seat 36 to completely block the liquid from flowing out of the outlet 34 and the liquid inlet 35.

The faucet 1 is provided between the sealing surface 52 and the receiving seat 36.
When the plunger knob 38 is urged to join by rotating the plunger knob 38 toward the position for closing the
However, since the plunger knob 38 and, therefore, its cylindrical outer peripheral surface 58 are deviated radially outward, the cylindrical outer peripheral surface 58 is firmly connected to the inner peripheral surface 60 of the cylindrical barrel 12 main body. Join. This is due to the elasticity of the plastic material used in manufacturing the cylindrical barrel 12 and the plunger knob 38, but also due to the inclination of the receiving seat 36 and the sealing surface 52. Further, since at least a portion near the outlet of the plunger knob is hollow, the pressure of the liquid entering the hollow portion urges the plunger knob to expand its diameter outward in the radial direction. This also contributes to tight joining between the cylindrical outer peripheral surface 58 of the plunger knob and the inner peripheral surface 60 of the cylindrical wall 14 of the cylindrical barrel 12 main body. Thus, in the movement between the bag 24 and the outlet 34, two seals will be made. That is, the first seal is where the seal surface 52 and the receiving seat 36 are joined, and the second seal is that the cylindrical outer peripheral surface 58 of the plunger knob 38 is the cylindrical cylindrical wall of the cylindrical barrel 12 main body. It is being pressed against the inner peripheral surface 60.

Spiral grooves 30, 32 closest to collar 26
May be smaller than the pitch of the other portions of the grooves 30, 32, or may extend a short distance in the week direction. Thus, the tendency of the plunger knob 38 to rotate from the position of the faucet 10 in the fully closed left position as shown in FIG. 1 is reduced or completely eliminated.

If desired, seal surface 52 and seat 36
The barrel seat may be joined before the plunger knob 38 is rotated clockwise to the furthest position. The two starting spiral grooves 30 and 32 can be replaced with a single starting spiral groove or a spiral groove having two or more starting points.

Plunger knob 38 and cylindrical barrel 1
Due to the tight seal between the two main bodies, a good joint state is always ensured between the plunger knob 38 and the main body of the cylindrical barrel 12. As described above, the cylindrical barrel 12
A seal is formed by the sliding fit of the plunger knobs 38 in the body over the length to which they are joined, creating a seal between the plunger knob 38 and the body of the cylindrical barrel 12. The possibilities have become smaller. The seal can also reduce leakage when the faucet is opened.

[0023]

According to the present invention, the faucet has a simple structure, and the plunger knob and the cylindrical barrel are always in a good joint state by the tight seal between the plunger knob and the cylindrical barrel body. Is secured. As described above, the plunger knob is slidably fitted over the length to which the plunger knob is joined in the cylindrical barrel body to form a seal, and the plunger knob and the cylindrical barrel body are connected to each other. The potential for intervening liquid leakage has been reduced. The seal can also reduce leakage when the faucet is opened.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a faucet according to the present invention, showing a faucet closed state.

FIG. 2 is a longitudinal sectional view of the faucet of the present invention, showing a state where the faucet is opened.

FIG. 3 is a vertical sectional view of a cylindrical plunger knob which is detachably attached to the faucet shown in FIG.

[Explanation of symbols]

 10: faucet 12: cylindrical barrel 14: cylindrical wall of cylindrical barrel 16, 18: open end of cylindrical barrel 24 ... . Bags for storing liquids 30, 32... Spiral grooves (guide means) 34... Outlets 35... Valve seat) 38 Plunger knob 40 Outer skirt 44, 46 Projection (guide means) 52 Seal surface on plunger knob side 58 ..Cylinder outer peripheral surface of plunger knob 60 ... Cylinder inner peripheral surface of cylindrical barrel

Continuation of the front page (71) Applicant 599040034 Stonehill Farm, Denon Valley Farm, STELL ENBOSCH 7600, Republic of South Africa F-term (reference)

Claims (5)

[Claims] A cylindrical barrel (12) formed by a cylindrical wall (14) having opposed open ends (16, 18), one of the open ends forming an inlet end. A receiving seat (36) is formed at an opening end (16) that forms an inlet end of the cylindrical wall (14), and the receiving seat (36) is formed between the opposed opening ends (16, 18). These open ends (1) are attached to the cylindrical barrel (12).
An outlet (34) for providing an outlet in a direction branched from a streamline connecting 6, 6) to the opposite side to the open end (16) forming the inlet end via the receiving seat (36). In the located faucet, this further comprises a hollow cylindrical plunger knob (38).
The plunger knob (38) is slidably and watertightly fitted along the inner periphery of the cylindrical wall (14) of the cylindrical barrel (12), and the cylindrical barrel (12) An outer peripheral skirt (40) fitted in sliding contact with the outside of (12) is integrally formed, and a sealing surface (52) for seating on the receiving seat (36) is provided on the receiving seat (36). Opposite ends are respectively formed so that, during use, they can move along the cylindrical wall (14) of the cylindrical barrel (12), whereby the cylindrical barrel (12) can move along the cylindrical wall (14). A sealing surface (52) is joined to the seat (36) across the outlet (34), thereby isolating the open end (16), which defines the inlet end, from the outlet (34). Or closed Location and, set back from the seat (36), with the liquid by taking a distance from said seat (36) and said open end forming the inlet end portion (16)
A liquid flow control faucet which is reversibly movable between a second or open position allowing flow from the outlet to the outlet (34). 2. The liquid flow control faucet according to claim 1, wherein the receiving seat (36) is inclined so as to face radially outward with respect to the sealing surface (52) of the plunger knob, A liquid flow control, wherein a sealing surface (52) of the knob (38) is inclined so as to face radially inward with the receiving seat (36) and is joined to the receiving seat (36) in a form of fitting. faucet. 3. A liquid flow control faucet according to claim 1, wherein said plunger knob is rotatably guided along a spiral path.
32, 44, 46). 4. The liquid flow control faucet according to claim 1, wherein said guide means includes at least one spiral groove (30, 32) in said cylindrical wall. A flow control faucet, wherein said plunger knob (38) includes one or more protrusions (44, 46) individually slidingly engaging said spiral grooves (30, 32). 5. The liquid flow control faucet according to claim 1, wherein a liquid injection port (35) is provided in the outlet (34).