JPH0726996Y2 - Pump injection type liquid container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a pump liquid injection type liquid container capable of discharging the liquid in the container body to the outside by pressurized air from an air pump. .

(Prior Art) In a conventionally known pump injection type liquid container, an annular air pump is installed in a space above the shoulder portion of the inner container in the container body, and the above-mentioned space that is relatively unused. It is known to make effective use of (for example,
62-47330).

In the pump injection type liquid container of the above-mentioned known example (Japanese Utility Model Laid-Open No. 62-47330), the air blowing passage from the air pump is from the pump discharge port to the inner container through the lid that closes the liquid supply port. It is in communication. Further, the air blowing passage serves as a passage for the steam generated from the hot water in the inner container to discharge the steam generated in the inner container to the outside through the lid.

(Problems to be Solved by the Invention) However, in the pump injection type liquid container in which the air blowing passage from the air pump is made to communicate with the inner container through the lid body as in the above-mentioned known example, the air blowing passage ( The structure of the steam escape passage (combined) also becomes complicated, and since the lid is opened and closed, a structure for maintaining the airtightness of the air blowing passage is required, and the air blowing that communicates with the inside of the inner container is introduced into the lid. Since the passage is formed, there has been a problem that the heat retaining effect of the lid on the liquid in the inner container is reduced. Further, in the air pump of this known example, the air blowing passage (steam escape passage) is always communicated with the outside of the liquid container through the lid body, and when the liquid container falls, the liquid in the inner container passes through the steam escape passage. There was a problem that it could be leaked to the outside.

In view of the problems of the above-mentioned known pump injection type liquid container, the present invention can simplify the structure of the air passage for air injection or vapor escape and improve the heat retention of the liquid in the inner container. It is also possible to prevent the liquid in the inner container from flowing out through the vapor escape passage when the liquid container falls.
It is another object of the present invention to provide a pump injection type liquid container in which dust in the outside air does not enter the vapor escape passage.

(Means for Solving the Problem) As a means for solving the above problems, the present invention provides an inner container in a container body, and an annular air pump in a shoulder member of the container body, and further, the container body. In a pump injection type liquid container equipped with a lid for closing the liquid supply port of, an air blowing passage for connecting the air pump and the inside of the inner container to a space between the air pump and the shoulder member, and an inner container Steam escape passages that communicate the inside and the outside air are formed, and the outlets of the steam escape passages are opened to the positions of the shoulder members that are closed by the lid body, and the air blow passage and the steam escape passage are selectively opened and closed. In addition to providing a valve, a valve operating means for operating the valve in conjunction with the operation of the air pump is provided, and a water shutoff valve for blocking the vapor escape passage when the liquid container falls is provided in the vapor escape passage. There is.

(Operation) The pump injection type liquid container of the present invention has the following operations.

Since the air pump is provided on the container body side, and the air blowing passage from the air pump and the escape passage for the steam generated in the inner container are formed in the space between the air pump and the shoulder member, respectively, the lid side It is not necessary to form an air passage for injecting air or releasing steam.

Further, a valve for selectively opening and closing the air blowing passage and the steam releasing passage is provided, and the valve can be opened and closed in conjunction with the operation of the air pump by the valve operating means. Therefore, when the pump is stopped, the valve can open the steam release passage and close the air blowing passage to release the steam (pressure) generated in the inner container to the outside air, and at that time, the air blowing Since the passage is closed by a valve, steam generated in the inner container does not enter the air pump. Further, when the air pump is operated, the valve opens the air blowing passage and closes the steam releasing passage so that the pressurized air from the air pump is blown into the inner container.

Further, as described above, between the air pump and the shoulder member, an air injection passage and a steam escape passage are formed respectively, and those passages are selectively opened and closed by a single valve, Since the water shutoff valve is provided in the vapor escape passage, the water shutoff valve closes the vapor escape passage when the liquid container falls, preventing the liquid in the inner container from flowing out through the vapor escape passage. Come to block. Since the air blowing passage is closed by the alternative open / close valve when the pump is stopped, the liquid in the inner container does not flow into the air pump when the liquid container falls.

Further, since the outlet of the steam escape passage is opened to the position of the shoulder member closed by the lid, the outlet of the steam escape passage is covered with the lid in the closed state, and the steam is discharged from the outlet of the passage. Dust in the outside air will not enter the escape passage. Further, when the liquid container falls, the liquid in the inner container may suddenly flow out from the outlet through the vapor escape passage until the water shut-off valve completes the water shut-off operation. When the outlet of the vapor escape passage is covered with the lid, even if the liquid flows out from the outlet of the passage, the lid can prevent the sudden outflow to the outside of the liquid container.

(Effect of the Invention) The pump injection type liquid container of the present invention has the following effects.

(1) Since the air passages for air injection and vapor escape are formed in the voids in the shoulder member, the structure of the air passages is simplified (as in the case of passing the air passages through the lid side). Airtight holding structure for the air passage inside the lid is unnecessary).

(2) Since there is no air passage in the lid, the liquid supply port can be sealed by the lid, and the heat retaining action of the liquid in the inner container by the lid is improved.

(3) The escape passage for the steam generated in the inner container and the air blowing passage from the air pump can be switched by a valve that is operated in conjunction with the pump operation. Can be automatically switched with a simple structure.

(4) Since the water shutoff valve is provided in the vapor escape passage when the liquid container falls, the water shutoff valve closes the vapor escape passage when the liquid container is accidentally overturned, and the liquid in the inner container is closed. Can be prevented from flowing out through the steam escape passage.

(5) As in (1) above, in the case where the vapor escape passage is formed in the shoulder member, the outlet of the vapor escape passage is opened to the position of the shoulder member covered by the lid, so the lid is closed. In this state, dust in the outside air does not enter the steam escape passage from the passage outlet, which is good in hygiene.

(6) Even if a water shutoff valve is provided in the vapor escape passage when the liquid container falls, as in (4) above, until the water shutoff valve completes the water shutting operation when the liquid container falls. , The liquid in the inner container may suddenly flow out from the outlet through the vapor escape passage, but if the outlet of the vapor escape passage is covered with a lid, the liquid may flow out from the passage outlet. The lid can prevent a sudden outflow to the outside of the liquid container, improving safety.

(Embodiment) A preferred embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG. 1 to FIG. 3 show the first embodiment of the present invention, and FIGS. Shows the respective second to fourth embodiments.

The pump injection type liquid container of the first embodiment shown in FIGS. 1 to 3 includes a container body 1 and a lid body 2 which is located above the container body 1 and seals a liquid supply port of the container body 1. It is configured with.

The container body 1 accommodates an inner container 5 made of a vacuum double bottle in an outer case 4 made of sheet metal, further mounts and fixes an annular shoulder member 6 on the upper part of the outer case 4, and An air pump 8 for pressurizing, a pump drive means 9 for driving the air pump 8, a series of liquid pouring passages 10,
It has a handle 20.

The inner container 5 has a considerably narrow upper opening 5a as compared with its body diameter, and a reverse funnel-shaped shoulder portion is formed on the upper outer peripheral portion of the inner container 5.
51 is formed.

A liquid supply port 11 is formed substantially in the center of the shoulder member 6.

An annular peripheral wall 7 is provided between the lower surface of the edge portion 11 a of the liquid supply port 11 and the upper opening edge 52 of the inner container 5. In this embodiment, the peripheral wall 7 is formed separately from the shoulder member 6. The inside of the peripheral wall 7 communicates with the inside of the inner container 5.

The air pump 8 is formed in a ring shape. The air pump 8 includes a shoulder portion 51 of the inner container 5, an outer case 4, and a shoulder member 6.
It is installed in an annular space S surrounded by and.
The air pumps 8 are annular pump upper plates.
An annular erofram 43 is also interposed between the pump lower plate 41 and the pump lower plate 42, and the pump lower plate 42 and the bellows 43 are covered with a ring-shaped case 40 having a substantially U-shaped cross section.
In the first embodiment, the pump upper plate 41 is formed integrally with the peripheral wall 7. The bellows drum 43 is formed by molding a flexible thin film material such as rubber into a ring shape in cross section. The bellows 43 is attached by sandwiching the upper ends of the inner and outer walls between the upper surfaces of the inner and outer walls of the case 40 and the lower surface of the pump upper plate 41. As shown in FIG. 1, the case 40 is fixed to the pump upper plate 41 with screws 50 (a plurality of positions in the circumferential direction). Further, as shown in FIGS. 2 and 3, a suction port 44 is formed in the pump lower plate 42, and a discharge port 45 is formed in the pump upper plate 41. The suction port 44 and the discharge port 45 are provided at positions corresponding to each other vertically. A suction valve 46 is provided at the suction port 44, and a discharge valve 47 is provided at the discharge port 45. The suction valve 46 is normally provided in a valve-opened state at a position on one side in a direction perpendicular to the front-rear direction of the container body 1, and is closed by the tip of the pressing lever when the pump drive means 9 described later is operated. It is supposed to be done.

The air blowing passage 14 from the air pump 8 and the escape passage 14A for the steam generated in the inner container 5 are formed in a space S between the air pump 8 and the shoulder member 6, respectively.

The air blowing passage 14 from the air pump 8 is a pump discharge port.
It is composed of a base side passage member 15 connected to 45 and a cylindrical hole 16 formed integrally with the peripheral wall 7. The base-side passage member 15 has a connection port 15b formed in a side wall portion of an annular valve accommodating portion 15a that surrounds the outside of the discharge valve 47 that opens and closes the pump discharge port 45. The cylindrical hole 16 formed in the peripheral wall 7 is formed so as to penetrate the peripheral wall 7 inward and outward at a position lower than the edge of the liquid supply port 11. Then, the connection pipe 15b of the base side passage member 15 and the cylindrical hole 16 are connected to each other to form a series of air blowing passages 14 that communicate the inside of the inner container 5 with the air pump 8.

A part of the air blowing passage 14 also serves as a steam escape passage 14A for discharging the steam generated from the hot water in the inner container 5 to the outside. That is, the steam escape passage 14A has a hole (which serves as an outlet of the steam escape passage) 19 formed so as to laterally penetrate through the dish-shaped portion 6a of the shoulder member 6, and the base side passage member 15 on the lower surface side of the hole 19. The valve accommodating portion 15a includes a communication port 18 formed in the upper wall thereof, the inside of the valve accommodating portion 15a, a connecting pipe 15b, and a cylindrical hole 16.

In the valve accommodating portion 15a of the base side passage member 15, the steam escape passage 1
A valve 92 for opening and closing the lower surface of the communication port 18 of 4A is provided. In the first embodiment, the valve 92 is formed in a disc shape which is separate from the discharge valve 47, and has a communication port 18 on its upper surface side.
Has a packing 92a that contacts the lower surface of the. The valve 92 for opening and closing the communication port is mounted on the upper surface of the discharge valve 47 and can be moved up and down together with the vertical opening / closing operation of the discharge valve 47. That is, when the discharge valve 47 is closed by downward movement (Fig. 2), the valve 92 is in the downward opening state, and conversely, when the discharge valve 47 is opened by upward movement (Fig. 3). Is in the upper valve closing state. In the first embodiment, the valve 92 and the discharge valve 47 constitute a valve (47, 92) for selectively opening and closing the air blowing passage 14 and the steam escape passage 14A in the scope of the utility model registration claim. is doing. The discharge port 45 and the communication port 18 are selectively opened and closed by the discharge valve 47 and the valve 92 above it.
The operation of 7,92 will be described later.

In the communication port 18 of the vapor escape passage 14A, a water shutoff valve 93 when the liquid container falls down is housed. In the first embodiment, a ball valve is adopted as the water shutoff valve 93. This stop valve 93
In the upright state, the liquid container is in the downward valve opening state due to its own weight, but when the liquid container falls, it contacts the valve seat 18a above the communication port 18 as shown by the chain line 93 'in FIG. It is designed to block the communication port 18).

The outlet 19 of the vapor escape passage 14A is opened on the dish-shaped portion 6a of the shoulder member 6, and when the lid body 2 is covered, the passage outlet is formed.
19 is covered with the lower surface of the lid 2.

The liquid pouring passage 10 includes a vertically long liquid pumping pipe 71 that is pushed into the inner container 5, a liquid pouring pipe 72 that extends substantially laterally outward outside the inner container 5, the liquid pumping pipe 71, and the liquid. Outlet pipe
It is composed of a connecting portion 73 connecting the 72 and a discharge pipe 74 connected to the lower end of the liquid pouring pipe 72. This liquid pouring passage 10
The connection portion 73 has a water stop valve 75 accommodated therein when the liquid container falls.

The shoulder member 6 is integrally formed with a cover portion 76 that covers the tip of the liquid discharge pipe 72 and the outside of the discharge pipe 74.

The pump drive means 9 for operating the air pump 8 is
An operating lever 81 pivotally supported on both side walls of the cover portion 76 so as to be rotatable in an arc, and a pushing lever for pushing and driving the air pump 8.
82 and a link lever 83 for transmitting the rotational movement of the operating lever 81 to the pressing lever 82. The operation lever 81 and the linkage lever 83 are connected by a shaft 84. The pressing lever 82 has a bifurcated pressing portion 82a configured to push up the suction valve 46 of the air pump 8 and a bifurcated linking portion 82b configured to sandwich both sides of the liquid pouring pipe 72. There is. The pressing lever 82 is pivotally attached to two brackets 85 provided on the lower surface of the pump case 40 by shafts 86. Notches 87 are formed on the bottom plate of the pump case 40 so that the pressing portions 82a do not interfere with the case bottom plate when the pump drive means 9 is operated. Then, when the operation lever 81 is rotated, the pump drive means 9 causes each pressing portion of the pressing lever 82 via the linkage lever 83.
It is designed to move 82a up.

The suction valve 46 of the air pump 8 is a pump extension spring.
The valve is urged in the downward valve opening direction by 55. Also, intake valve
A discharge valve opening spring 56 is provided between the discharge valve 47 and the discharge valve 47 and is compressed when the suction valve 46 is moved upward to urge the discharge valve 47 in the upward valve opening direction. Further, between the upper surface of the valve 92 for opening and closing the communication port provided on the upper portion of the discharge valve 47 and the lower surface of the upper wall of the base side passage member 15, the valve 92 is opened downward when the pump is extended. With discharge valve 47
A valve lowering spring 57 for urging the valve lowering valve closing direction is provided. In the first embodiment, the discharge valve opening spring 56 and the valve downward movement spring 57 constitute the valve operating means within the scope of the utility model registration claim. In the pump extension state, as shown in FIG. 2, the suction valve 46 is pressed by the pump extension spring 55 to be in the lower valve opening state, and the discharge valve 47 is in the lower valve closing state by the valve lowering spring 57. Is maintained (the discharge valve opening spring 56 is almost fully extended and has no valve opening action). In this state (Fig. 2),
The discharge valve 47 closes the discharge port 45, the valve 92 for opening and closing the communication port opens the communication port 18, the air blowing passage 14 is blocked, and the vapor escape passage 14A communicates with the outside air. . Further, when the operating lever 81 of the pump driving means 9 is operated, each pressing portion 82a of the pressing lever 82 moves upward, and the air pump 8 is closed with the intake valve 46 closed as shown in FIG.
The discharge valve opening spring 56 moves the discharge valve 47 upward to open the discharge port 45, and the valve 92 above the discharge valve 47 closes the communication port 18. In this state (FIG. 3), the steam escape passage 14A is blocked and the air blowing passage 14 communicates with the inside of the air pump 8.

In FIG. 1, reference numeral 12 is a liquid quantity display tube. The lower end side of the liquid quantity display tube 12 is connected to an opening (not shown) formed in the bottom of the inner container 5, and the upper end side of the liquid quantity display tube 12 communicates with the inner wall 5 from the peripheral wall 7 part. I am letting you.

A handle 20 for suspending and holding the liquid container is attached to the outer member near the upper end of the outer surface of the shoulder member 6. The handle 20 is formed in a semicircular shape having an outer diameter that is substantially the same as or slightly smaller than the outer diameter of the outer surface of the shoulder member 6.

The lid body 2 is formed by housing a heat insulating material 23 between an upper plate 21 and a lower plate 22. At the center of the lid lower plate 22, the liquid supply port is
A lower bulging portion 24 is formed to be inserted into the inside of the housing 11 by a predetermined depth, and the heat insulating material 23 is filled inside the lower bulging portion 24. An inner lid 25 is provided on the upper end portion of the downward bulging portion 24 in the lid body 2 so as to cover the upper portion of the heat insulating material 23. Further, an inverted container-shaped partition lid 26 having a considerable diameter is provided on the upper surface side of the lower plate 22 in the lid body 2, and a vacant chamber 27 having a considerable size is provided in the partition wall 26. Has become. Further, a cylindrical hole 28 is formed in the central portion of the downward bulging portion 24 so that the lower surface of the lid and the inside of the empty chamber 27 communicate with each other. The empty chamber 27 in the lid body 2 serves as a tank for temporarily storing a part of the liquid in the inner container 5 (that is, preventing leakage to the outside) when the liquid container falls. Therefore, when the liquid container falls, a part of the liquid in the inner container 5 flows into the vacant chamber 27 through the cylindrical hole 28. When the liquid container falls, the liquid that has flowed into the empty chamber 27 automatically flows back into the inner container 5 through the cylindrical hole 28 when the liquid container is erected.

The lower surface of the lid body 2 (lower surface of the lower plate 22) has a liquid supply port 11 when the lid is closed.
A packing 29 is provided to close the rim 11a.

The lid body 2 is mounted by pivoting a rear portion of the lid body 2 on the upper rear side of the container body 1 by a hinge device 3 and locking a front portion of the lid body by a lid locking device 60. Further, when the lid 2 is closed, the upper surface of the lid is substantially flush with the upper surface of the shoulder member 6.

In the pump injection type liquid container of the first embodiment, in the closed state shown in FIG. 1 and FIG.
The lid 2 is closed by the packing 29, and the lid 2 is not provided with a steam escape passage or an air blowing passage, so that the lid 2 has a good heat retaining effect. In this closed state, the discharge valve 47 closes the pump discharge port 45 and opens the communication port 18, so that the air blowing passage 14 is blocked and the vapor escape passage 14A is open to the outside air. The steam generated from the hot water in the inner container 5 is discharged to the outside through the air escape passage 14A (the steam does not enter the air pump 8). or,
The outlet 19 of the steam escape passage 14A is opened on the shoulder member dish 6a, and in the closed state, the passage outlet 19 is covered with the lid body 2. From the passage outlet 19 inside the steam escape passage 14A. Dust in the outside air will not enter. Further, when the operating lever 81 of the pump driving means 9 is operated in this closed state, the air pump 8 is compressed and at the same time the discharge valve 47 is moved upward as shown in FIG. At the same time as opening, the vapor escape passage 14A is cut off, and the pressurized air from the air pump 8 is blown into the inner container 5 (the liquid in the inner container 5 becomes a series of liquid discharge passages 10). Through the outside). Further, when the liquid container is accidentally tumbled, the water stop valve 93 in the vapor escape passage 14A abuts the valve seat 18a of the communication port 18 to close the vapor escape passage 14A, and the liquid discharge passage 10 The water stop valve 75 is also closed to prevent the liquid in the inner container 5 from flowing out from any of the passages (the vapor escape passage 14A, the air blowing passage 14, the liquid pouring passage 10). Become. Furthermore, when the liquid container falls,
Until the water stop valve 93 completes the water stop operation, the liquid in the inner container may suddenly flow out from the outlet 19 through the steam escape passage 14A, but as described above, the outlet of the steam escape passage. By covering 19 with the lid 2, the passage outlet
Even if the liquid flows out from 19, the lid 2 can prevent a sudden outflow to the outside of the liquid container.

In the pump injection type liquid container of the second embodiment shown in FIG.
A discharge valve 47 that opens and closes the pump discharge port 45 allows the steam escape passage 14
It also serves as a valve that opens and closes at the communication port 18 on the A side. Further, in the second embodiment, the packing 18b is provided on the lower surface of the communication port 18 so as to improve the closing action of the communication valve 18 by the discharge valve 47 at the time of operating the pump, and further to the lower surface side of the discharge valve 47.
A packing 47a for closing 45 is provided so that the closing action of the discharge port 45 can be improved when the pump is stopped.

In the pump injection type liquid container of the third embodiment shown in FIG.
Similar to the second embodiment shown in FIG. 4, one discharge valve 47 is used both for opening and closing the pump discharge port 45 and for opening and closing the communication port 18, and at the same time, a spring for closing the discharge valve 47 (see FIG. 4). The reference numeral 57 in) is omitted. In this case, in the pump extended state, the discharge valve opening spring 56 is fully extended and does not act on the discharge valve 47.
The valve is closed by the weight of the water shutoff valve (steel ball valve) 93 mounted on the upper part thereof.

In the pump injection type liquid container of the fourth embodiment shown in FIG.
Similar to the embodiments of FIGS. 4 and 5, one discharge valve 47 is used.
It is also used for opening and closing the communication port. The discharge valve 47 of the fourth embodiment employs a hook valve type in which the discharge valves of the first to third embodiments are fitted to the edge of the discharge port. A type that is simply placed on the upper surface side of the discharge port 45 is adopted. Further, in the fourth embodiment, the water shutoff valve 93 for opening and closing the valve seat 18a of the communication port 18 is
The ball-shaped valve is replaced by a cannonball-shaped one. further,
In the fourth embodiment, the peripheral wall 7 below the liquid supply port 11 is divided into an upper peripheral wall 7A and a lower peripheral wall 7B, and the upper peripheral wall 7A side has a passage for air injection and vapor escape. A cylindrical hole 16 which becomes a part is formed, and a case 40 of the air pump 8 is integrally formed on the lower peripheral wall 7B. The pump upper plate 41 is formed as an independent member.

In the first to third embodiments, a ball valve is used as the water shutoff valve 93 for the steam escape passage, and in the fourth embodiment, a shell type is used as the water shutoff valve 93. ,
Besides, as the water shutoff valve, for example, a suitable one such as a film can be adopted.

Further, the other structures in the second to fourth embodiments are constructed in substantially the same manner as in the first embodiment, and the explanation of the first embodiment is cited.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a pump injection type liquid container according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG.
FIG. 1 is a state change diagram of the air pump portion of FIG. 1, and FIGS. 4 to 6 are partial vertical cross-sectional views of a pump injection type liquid container according to second to fourth embodiments of the present invention. 1 ... Container main body 2 ... Lid body 3 ... Hinge device 5 ... Inner container 6 ... Shoulder member 7 ... Peripheral wall 8 ... Air pump 9 ... Pump driving means 10 ... Liquid pouring passage 11 ... Liquid supply port 14 …… Air injection passage 14A …… Steam escape passage 18 …… Communication port 19 …… Outlet 45 …… Pump discharge port 47,92 …… Valve 56,57 …… Valve operating means 93 …… Water stop valve

Claims (1)

[Scope of utility model registration request] 1. An inner container (5) is provided in a container body (1),
Further, an annular air pump (8) is provided in the shoulder member (6) of the container body (1), and the liquid supply port (1) of the container body (1) is further provided.
A pump injection type liquid container provided with a lid (2) for closing the air pump (1), wherein the air pump (8) is provided in a space between the air pump (8) and the shoulder member (6). An air blowing passage (14) for communicating the inside of the inner container (5) with each other, and a steam escape passage (14A) for communicating the inside of the inner container (5) with the outside air, respectively, and the steam escape passage (14A). The outlet (19) of (1) is opened to the position of the shoulder member (6) covered with the lid (2), and the air blowing passage (14) and the vapor escape passage (14A) are selectively opened. A valve (47,92) for opening and closing is provided on the valve, and the valve (47,9) is linked to the operation of the air pump (8).
2) is provided with a valve operating means (56, 57), and a water shutoff valve (93) is provided in the vapor escape passage (14A) to close the vapor escape passage (14A) when the liquid container falls. A pump injection type liquid container characterized by the above.