Cock Cap

Abstract

To provide a novel cap with a cock that can be attached to the discharge port of an existing liquid container to easily and reliably switch between discharging and not discharging the liquid contained in the liquid container and stabilize the discharge of the liquid. [Solution] The cap includes a cap body 13 attached to the discharge port 12, and a switching cock 14 provided on the top surface of the cap body 13. The switching cock comprises (a) a rotating body 18 having a liquid flow path 16 that discharges liquid from an opening 15 on one longitudinal side and an outside air flow path 17 that circulates outside air independently of the liquid flow path 16, and (b) a cylindrical portion 20 that holds the rotating body 18 rotatably between a first position and a second position, and a housing 24 having a liquid outlet 22 that penetrates a peripheral wall 21 of the cylindrical portion 20 and is connected to the interior of the liquid container 11 on one side and is connectable to the liquid flow path 16 on the other side, and an air intake 23 that penetrates the peripheral wall 21 of the cylindrical portion 20 and is connectable to the interior of the liquid container 11 on one side and is connectable to the outside air flow path 17 on the other side.

Description

[Technical Field]

[0001] This invention relates to a cap with a cock that is attached to the outlet of a liquid container made mainly of synthetic resin. [Background technology]

[0002] Conventionally, liquid containers made of synthetic resin, such as polyethylene tanks called "poly tanks" (abbreviated as "poly cans"), have been widely used for storing and transporting liquids such as water. These liquid containers have one or two openings on the top side, and a user can dispense liquid by tilting the liquid container at an angle, using one opening as the liquid outlet. In this case, the user must adjust the angle of the liquid container while checking the amount of liquid dispensed, and must continue to support the liquid container with their hand while dispensing. This makes it difficult to stabilize the amount of liquid dispensed, and can result in unexpectedly dispensing a large amount of liquid. Therefore, an open / close valve (a cap with a cock) that can be attached to the discharge outlet of a liquid container has been proposed (see Patent Document 1). If the valve of Patent Document 1 is attached to the discharge outlet of a liquid container, the liquid container can be rotated 90 degrees so that the discharge outlet is positioned to the side, and the user can switch between the discharge state and the stopper state simply by operating the valve's opening / closing knob and rotating the rotating valve. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3538197 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in Patent Document 1, depending on the angle at which the rotary stopper is rotated, there are discharge states without air suction and discharge states with air suction, and in the discharge state without air suction, there is a problem that the liquid discharge becomes unstable.Furthermore, in Patent Document 1, because an air intake is provided in communication with the liquid flow path formed inside the rotary stopper, depending on the positional relationship between the height of the liquid surface as the liquid passes through the liquid flow path and the air intake, there is a problem that the air taken in from the air intake simply collects at the top of the liquid flow path without entering the inside of the liquid container, and air suction is not performed, resulting in unstable liquid discharge.

[0005] The object of this invention is to provide a new cap with a cock that can be attached to the outlet of an existing liquid container to easily and reliably switch on or off the discharge of the liquid contained in the liquid container, thereby stabilizing the discharge of the liquid. [Means for solving the problem]

[0006] As a result of intensive research into solving the above problems, the inventor discovered that by configuring a switching cock provided on a cap body attached to the discharge outlet of a liquid container to rotatably hold a rotating body in which an outside air flow passage is formed for circulating outside air independently of the liquid flow passage through which the liquid is discharged, and when the rotating body is in a first position, the liquid contained in the liquid container is discharged through the liquid flow passage and outside air flowing through the outside air flow passage is taken into the interior of the liquid container, and when the rotating body is in a second position, the liquid flow passage and the outside air flow passage are closed, it is possible to easily and reliably switch between discharging and not discharging liquid, and thus completed the present invention.

[0007] That is, the present invention is as follows. [1] A cap with a cock that is attached to a discharge port of a liquid container and can switch on and off the discharge of liquid contained in the liquid container, a cap body attached to the discharge port and a switching cock provided on an upper surface of the cap body, the switching cock comprises: (a) a rotating body having a liquid flow path that discharges the liquid from an opening on one side in the longitudinal direction and an outside air flow path that circulates outside air independently of the liquid flow path; (b) a cylindrical part that holds the rotating body rotatably between a first position and a second position; and a housing having a liquid outlet that penetrates a peripheral wall of the cylindrical part, one side of which is in communication with the interior of the liquid container and the other side of which is in communication with the liquid flow path; and an air intake that penetrates a peripheral wall of the cylindrical part, one side of which is in communication with the interior of the liquid container and the other side of which is in communication with the outside air flow path; when the rotating body is in the first position, the liquid flow path and the liquid outlet communicate with each other, and the outside air flow path and the air intake communicate with each other, so that the liquid contained in the liquid container is discharged from the liquid outlet through the liquid flow path and the opening, and the outside air flowing through the outside air flow path is taken into the liquid container through the air intake, A cock cap, characterized in that when the rotating body is in the second position, the liquid outlet and the air intake are blocked by the outer peripheral wall of the rotating body. [2] The cap with a cock described in [1] above, characterized in that the rotating body has a liquid passage part that is connected to the other longitudinal side of the liquid flow path and penetrates the outer wall, and when the rotating body is in the first position, the liquid flow path and the liquid outlet are connected via the liquid passage part. [3] The cap with a cock described in [1] above, characterized in that the rotating body has a ventilation part that is connected to the outside air flow passage and penetrates the outer wall, and when the rotating body is in the first position, the liquid flow path and the liquid outlet are connected via the ventilation part. [4] The cock-equipped cap according to any one of [1] to [3] above, wherein the outside air flow passage is formed on the outer periphery of the liquid flow passage. [5] The cock cap according to any one of [1] to [4] above, characterized in that the inner circumferential surface of the liquid flow path has a recessed groove and / or a raised ridge formed along the longitudinal direction of the liquid flow path. [Effects of the Invention]

[0008] The cap with a cock of this invention can be attached to the outlet of an existing liquid container and simply operated to easily switch on or off the liquid discharge. During the liquid discharge, air can be reliably taken into the inside of the liquid container, allowing the liquid to be discharged stably. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a side view showing a state in which a cock-equipped cap according to an embodiment of the present invention is attached to a discharge outlet of a liquid container. [Figure 2] 1 is a side view of a cock cap according to an embodiment of the present invention; [Figure 3] 1 is a front view of a cock cap according to an embodiment of the present invention; [Figure 4] 1 is a plan view of a cock cap according to an embodiment of the present invention; [Figure 5] FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 6] FIG. 3 is a cross-sectional view taken along the line BB in FIG. 2. [Figure 7] FIG. 4 is a cross-sectional view taken along the line CC in FIG. 3. [Figure 8] 1 is a horizontal cross-sectional view showing a state in which the liquid outlet of the cap with a cock according to an embodiment of the present invention is closed; FIG. [Figure 9] 1 is a horizontal cross-sectional view showing a state in which the air intake of a cock cap according to an embodiment of the present invention is closed; FIG. [Figure 10] 1 is a vertical cross-sectional view of a cap with a cock according to an embodiment of the present invention, showing the liquid outlet and air intake closed; FIG. [Figure 11] 1A is a horizontal cross-sectional view showing a first modified example of a rotor in a cap with a cock according to an embodiment of the present invention, and FIG. 1B is a horizontal cross-sectional view showing a second modified example of a rotor in a cap with a cock according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] The cap with a cock of the present invention is a cap with a cock that is attached to the discharge outlet of a liquid container and can switch whether or not the liquid contained in the liquid container is discharged. It comprises a cap body that is attached to the discharge outlet and a switching cock that is provided on the upper surface of the cap body. The switching cock comprises: (a) a rotating body having a liquid flow path that discharges the liquid from an opening on one side in the longitudinal direction and an outside air flow path that circulates outside air independently of the liquid flow path; (b) a cylindrical part that holds the rotating body rotatably between a first position and a second position; and (c) a cylindrical part that penetrates the peripheral wall of the cylindrical part so that one side is connected to the inside of the liquid container and the other side is connected to the liquid flow path. and an air intake port that penetrates the peripheral wall of the cylindrical part and has one side communicating with the interior of the liquid container and the other side communicating with an outside air flow passage, wherein when the rotor is in a first position, the liquid flow passage and the liquid outflow port are connected, and the outside air flow passage and the air intake port are connected, so that the liquid contained in the liquid container passes through the liquid outflow port and is discharged from the opening, and outside air flowing through the outside air flow passage is taken into the inside of the liquid container through the air intake port, and when the rotor is in a second position, the liquid outflow port and the air intake port are closed by the outer peripheral wall of the rotor.

[0011] The cap with a cock of this invention allows the on / off of liquid dispensing to be easily and reliably switched on and off simply by rotating the rotor. Also, by providing an outside air passage around the outer periphery of the liquid flow path that dispenses the liquid independently of the liquid flow path, outside air (air) can be reliably taken into the liquid container, stabilizing the dispensing of the liquid.

[0012] The structure of the cock cap of the present invention will be specifically described below. The cap with a cock of the present invention is, as described above, a cap with a cock that is attached to the discharge outlet of a liquid container and can switch whether or not the liquid contained in the liquid container is discharged. It comprises a cap body that is attached to the discharge outlet and a switching cock that is provided on the upper surface of the cap body. The switching cock comprises: (a) a rotating body having a liquid flow path that discharges liquid from an opening on one side in the longitudinal direction and an outside air flow path that circulates outside air independently of the liquid flow path; (b) a cylindrical portion that holds the rotating body rotatably between a first position and a second position; and (c) a rotating body that penetrates the peripheral wall of the cylindrical portion and has one side that communicates with the inside of the liquid container. The housing has a liquid outlet on one side which is connectable to the liquid flow path, and an air intake which penetrates the peripheral wall of the cylindrical part and is connectable to the interior of the liquid container on one side and to an outside air flow path on the other side, and when the rotor is in a first position, the liquid flow path is connected to the liquid outlet and the outside air flow path is connected to the air intake, so that the liquid contained in the liquid container passes through the liquid flow path from the liquid outlet and is discharged from the opening, and outside air circulating through the outside air flow path is taken into the interior of the liquid container through the air intake, and when the rotor is in a second position, the liquid outlet and air intake are blocked by the outer peripheral wall of the rotor.

[0013] It is preferable that the rotating body has a liquid passage part that is connected to the other longitudinal side of the liquid flow path and penetrates the outer wall, and when the rotating body is in the first position, the liquid flow path and the liquid outlet are connected via the liquid passage part.

[0014] It is preferable that the rotating body has a ventilation part that is connected to the outside air flow passage and penetrates the outer wall, and when the rotating body is in the first position, the liquid flow path and the liquid outlet are connected via the ventilation part.

[0015] The outside air flow passage is preferably formed on the outer periphery of the liquid flow passage.

[0016] The inner peripheral surface of the liquid flow path may have grooves and / or ridges formed along the longitudinal direction of the liquid flow path.

[0017] Hereinafter, a cock cap according to one embodiment of the present invention will be described with reference to the drawings, but the technical scope of the present invention is not limited to this embodiment.

[0018] Here, Fig. 1 is a side view showing a state in which a cock cap according to one embodiment of the present invention is attached to a discharge port of a liquid container, Fig. 2 is a side view of the cock cap according to one embodiment of the present invention, Fig. 3 is a front view of the cock cap according to one embodiment of the present invention, Fig. 4 is a plan view of the cock cap according to one embodiment of the present invention, Fig. 5 is a cross-sectional view taken along line AA in Fig. 2, Fig. 6 is a cross-sectional view taken along line BB in Fig. 2, and Fig. 7 is a cross-sectional view taken along line CC in Fig. 3.

[0019] A cock-equipped cap 10 according to one embodiment of the present invention is attached to a discharge port (opening) 12 of a liquid container 11, and allows the liquid contained in the liquid container 11 to be discharged or not to be switched on or off.

[0020] As shown in FIGS. 1 to 7, a cock-equipped cap 10 according to one embodiment of the present invention includes a cap body 13 attached to a discharge port 12 and a switching cock 14 provided on the top surface of the cap body 13. 5 to 7, the selector cock 14 is equipped with a liquid flow path 16 that discharges liquid from an opening 15 on one longitudinal side (the lower side in FIG. 7), and a rotor 18 that has an outside air flow path 17 that circulates outside air independently of the liquid flow path 16. As shown in FIGS. 5 to 7, the selector cock 14 is also equipped with a cylindrical portion 20 that rotatably holds the rotor 18 between a first position and a second position, and a housing 24 that has a liquid outlet 22 that penetrates a peripheral wall 21 of the cylindrical portion 20 and is connected to the interior of the liquid container 11 on one side and is connectable to the liquid flow path 16 on the other side, and an air intake 23 that penetrates the peripheral wall 21 of the cylindrical portion 20 and is connectable to the interior of the liquid container 11 on one side and is connectable to the outside air flow path 17 on the other side.

[0021] 2 to 4, an operating part 18a for rotating the rotor 18 is provided on the other longitudinal side (the upper side in Figs. 2 and 3) of the rotor 18. In addition, as shown in Figs. 5 to 10, a packing 25 is attached to the outer periphery of the housing 24, and by attaching (screwing) the cap body 13 to the discharge port 12, the packing 25 seals off water between the cap body 13 and the housing 24.

[0022] As shown in Figures 2 to 4, when the rotating body 18 is in the first position, as shown in Figures 5 and 7, the liquid flow path 16 and the liquid outlet 22 are connected, and as shown in Figures 6 and 7, the outside air flow path 17 and the air intake 23 are connected, so that the liquid contained in the liquid container 11 is discharged from the liquid outlet 22 through the liquid flow path 16 and from the opening 15 (solid arrow), and outside air circulating through the outside air flow path 17 is taken into the interior of the liquid container 11 through the air intake 23 (dashed arrow).

[0023] At this time, the rotor 18 has a liquid passage part 27 that is in communication with the other longitudinal side of the liquid flow path 16 and that passes through the outer peripheral wall 26. As a result, when the rotor 18 is in the first position, the liquid flow path 16 and the liquid outlet 22 are connected via the liquid passage part 27. The rotor 18 also has an air vent part 28 that is in communication with the outside air flow path 17 and that passes through the outer peripheral wall 26. As a result, when the rotor 18 is in the first position, the liquid flow path 16 and the liquid outlet 22 are connected via the air vent part 28.

[0024] As shown by the imaginary lines in Fig. 4, when operating unit 18a is rotated (flipped) 180 degrees, rotating body 18 rotates from a first position to a second position. When rotating body 18 is in the second position, liquid outlet 22 and air intake 23 are closed by outer peripheral wall 26 of rotating body 18, as shown in Figs. 8 to 10.

[0025] As described above, with cock cap 10, liquid can be easily and reliably discharged or not simply by rotating rotor 18 between the first and second positions. In particular, when liquid is discharged from opening 15 of liquid flow path 16, outside air can be taken into liquid container 11 through outside air passage 17 provided on the outer periphery of liquid flow path 16, eliminating the need to separately open other openings 29 of liquid container 11, resulting in excellent operability.

[0026] Next, a modified example of the rotor in the cock cap according to the embodiment of the present invention will be described. Note that the same reference numerals will be used to designate the same parts as in the embodiment, and the description thereof will be omitted. Rotating body 18A of a first modified example shown in Figure 11(A) differs from rotating body 18 in that it has recessed grooves 30 formed on the inner circumferential surface of liquid flow path 16 along the longitudinal direction of liquid flow path 16. Rotating body 18A of a second modified example shown in Figure 11(B) differs from rotating body 18 in that it has protruding ridges 31 formed on the inner circumferential surface of liquid flow path 16 along the longitudinal direction of liquid flow path 16.

[0027] In this way, by forming the recessed grooves 30 or the protruding ridges 31 on the inner peripheral surface of the liquid flow path 16, the flow of liquid passing through the inside of the liquid flow path 16 can be made smoother, and splashing and dripping of the liquid to the surrounding area can be reduced. The other configurations, actions, and effects are the same as those of the cock-equipped cap 10 according to the above-described embodiment, and therefore description thereof will be omitted. The recessed grooves 30 and the protruding ridges 31 may be formed on the inner circumferential surface of the liquid flow path 16. The shape, number and arrangement of the recessed grooves 30 and the protruding ridges 31 may be selected as appropriate. [Industrial Applicability]

[0028] The cock cap of the present invention is industrially useful because it can be attached to the discharge outlet of an existing liquid container. [Explanation of symbols]

[0029] 10. Cap with cock 11 Liquid containers 12 Outlet 13 Cap body 14 Switch cock 15 Aperture 16 Liquid flow path 17. Outside air passage 18 Rotating Body 18a Control section 18A Rotating body 18B Rotating body 20 Cylindrical part 21 Peripheral wall 22 Liquid outlet 23 Air intake 24 Housing 25 Gasket 26 Outer wall 27 Liquid passage part 28 Ventilation section 29 Opening 30 Groove 31 Convex strip

Claims

1. A cap with a cock that is attached to a discharge port of a liquid container and can switch between discharging and not discharging liquid contained in the liquid container, a cap body attached to the discharge port and a switching cock provided on an upper surface of the cap body, the switching cock comprises: (a) a rotating body having a liquid flow path that discharges the liquid from an opening on one side in the longitudinal direction and an outside air flow path that circulates outside air independently of the liquid flow path; (b) a cylindrical portion that holds the rotating body rotatably between a first position and a second position; and a housing having a liquid outlet that penetrates a peripheral wall of the cylindrical portion, one side of which is in communication with the interior of the liquid container and the other side of which is in communication with the liquid flow path; and an air intake that penetrates a peripheral wall of the cylindrical portion, one side of which is in communication with the interior of the liquid container and the other side of which is in communication with the outside air flow path, when the rotating body is in the first position, the liquid flow path and the liquid outlet communicate with each other, and the outside air flow path and the air intake communicate with each other, so that the liquid contained in the liquid container is discharged from the liquid outlet through the liquid flow path and the opening, and the outside air flowing through the outside air flow path is taken into the liquid container through the air intake, A cock cap, characterized in that when the rotating body is in the second position, the liquid outlet and the air intake are closed by an outer peripheral wall of the rotating body.

2. A cock cap as described in claim 1, characterized in that the rotating body has a liquid passage portion that is connected to the other longitudinal side of the liquid flow path and penetrates the outer wall, and when the rotating body is in the first position, the liquid flow path and the liquid outlet are connected via the liquid passage portion.

3. 2. The cap with a cock according to claim 1, characterized in that the rotating body has a ventilation portion that is connected to the outside air flow passage and penetrates the outer wall, and when the rotating body is in the first position, the liquid flow path and the liquid outlet are connected via the ventilation portion.

4. 2. The cock cap according to claim 1, wherein the outside air passage is formed on the outer periphery of the liquid passage.

5. 2. The cock cap according to claim 1, wherein the inner peripheral surface of the liquid flow path has a recessed groove and / or a protruding ridge formed along the longitudinal direction of the liquid flow path.

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