JPH0673497B2 - Liquid storage container with air pump - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a liquid container in which a mouth part having a diameter smaller than the maximum body diameter part of the container body is continuously provided in an upper part of the container body in a case. The present invention relates to a liquid storage container with an air pump in which an air pump for sending the liquid in the liquid container out of the case is arranged.

[Conventional technology]

Various types of thermos have been known as a thermos bottle, which is an example of this type of liquid container.
The structure disclosed in Japanese Patent No. 6 has the structure described in the following [I] and [II].

[I] The air pump is arranged at a position higher than the height of the mouth opening of the liquid container.

[II] an air supply passage from the air pump into the liquid container,
It is provided in a state of being led out from a position corresponding to the lower part of the pump chamber of the air pump in the container body.

In such a conventional thermos, since the air pump is positioned so as to project largely above the mouth of the liquid container, not only the center of gravity is high and the stability is deteriorated, but also the bulkiness becomes high.

Particularly, when the operation tool of the air pump is provided on the upper portion of the air pump, there is an inconvenience that it is difficult to operate the pump. In addition, if external water or foreign matter enters the pump chamber of the air pump, it tends to flow into the liquid container through the air supply passage.

Apart from the above-mentioned prior art, if only considering the provision of the air pump at a low position, the air pump is arranged below the bottom of the liquid container as shown in, for example, Japanese Utility Model Laid-Open No. 9875/1975. However, there is also a means for extending the air passage led out from the upper part of the pump chamber so as to reach the mouth portion between the outer peripheral side of the liquid container and the inner surface of the case.

However, in the above-mentioned conventional type in which the air pump is arranged below the liquid container, the bulk of the liquid container is not lowered only by the vertical positions of the air pump and the liquid container being reversed, but becomes heavy in the liquid filled state. Is located higher, the center of gravity becomes higher, and the stability becomes worse.

[Problems to be Solved by the Invention]

That is, any of the above-mentioned conventional structures has a common problem that it is bulky and lacks stability.

Moreover, in these conventional ones, even when the upper lid is not completely closed or the stopper for the mouth of the container is not securely closed, it can be used as usual using the air pump, When the container falls, there is a problem that the stopper may come off and the hot water in the container may be scattered.

The present invention improves the above-mentioned conventional drawbacks by improving the rational arrangement of the constituent members, and can be compact and low in volume relative to the total volume, and the top lid is not completely closed and the mouth of the container is closed. The purpose is to make it possible to easily find out that the stopper for the portion is surely closed.

[Means for Solving the Problems]

The technical means of the present invention taken to achieve the above object,
A liquid container in which an upper lid is attached to the case body so as to be rotatable, and a mouth portion having a diameter smaller than the maximum body diameter portion of the container body is continuously provided in the case body in the upper portion of the container body.
In a liquid storage container with an air pump in which an air pump for sending the liquid in the liquid container to the outside of the case is provided, the inside of the case forming the container outer peripheral surface near the mouth and the outer peripheral wall of the case body In the space formed between the peripheral surface and the shoulder member forming the shoulder portion of the main body, the air pump is positioned to enter, and an air supply passage from the air pump to the liquid container is formed through the shoulder member. A pump passage for sending air from the air pump, a passage in the upper lid that passes between an outer cover and an inner cover that form the upper lid, and a passage in the stopper formed through a stopper for the mouth of the liquid container. A predetermined closed posture of the upper lid, and a predetermined closed posture position of the stopper body, the air pump and the inside of the liquid container communicate with each other through the air supply passage, and the opening of the upper lid, Also As the air supply passage unplugging operation of the plug body is open, it is that the intermittent freely configure the pump passage and the upper cover passage and plug body passageway constituting the supply passage.

[Action]

The effect of taking the above technical means is as follows.

i. In order to insulate the inside and outside of the container, the mouth of the container is made as small as possible to reduce heat transfer through the plug attached to this mouth, and to lengthen the mouth of the container in the vertical direction. This is because of the unique shape of the container, which is adopted to satisfy the required function of improving the sealing performance by enlarging the contact surface between the stopper and the container. Space, that is, by utilizing a relatively large shoulder space existing between the container outer peripheral surface near the mouth and the case inner peripheral surface,
An air pump is installed in such a way that it does not increase the size of the entire container.

ii. An air supply passage from the air pump to the liquid container has a pump passage that penetrates the shoulder member, a passage in the upper lid that passes through the thick inside of the upper lid, and a stopper body that is formed through the stopper for the mouth of the liquid container. If the closed state of the upper lid or the closed state of the stopper is insufficient, the air supply passage is partially blocked. Since it is opened to the outside, the air supply action by the air pump becomes impossible or insufficient, which makes it possible to judge whether the closed state of the upper lid or the plug is good or bad.

iii. Of the air supply passage from the air pump to the liquid container, the passage other than the passage of the portion projecting upward from the shoulder member and the passage of the portion penetrating the plug body are the outer cover and the inner side that constitute the upper lid. Since it is provided so as to pass through between the cover and the cover, most of the air supply passage is located within the wall thickness of the upper lid, and its presence does not hinder the opening / closing operation of the plug body. The dead space in the upper lid can be effectively used without providing a dedicated installation space for the.

〔The invention's effect〕

(A) Due to the effect of the above i, the liquid container with the air pump which is compact as a whole and has a low center of gravity and good stability while avoiding an increase in the bulk due to the installation space of the air pump despite the large capacity of the container Was obtained.

(B) By the action of ii above, it is possible to easily judge the quality of the closed state of the upper lid and the plug body, and accordingly, when the liquid container is accidentally tumbled by closing the upper lid or the plug body again. An important effect for safety measures is that it is easy to prevent accidents such as splashing of hot water due to the disengagement of the plug due to such reasons.

(C) Due to the action of iii above, even if the wall thickness of the upper lid is increased to improve the heat insulation on the mouth side of the liquid container, the thickness width of the upper lid is used as a space for forming the air supply passage. It can be constructed without increasing the bulk, and moreover, the inner cover of the upper lid can also be used as a protection means for the internal air supply passage.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIGS. 1 to 3, in an internal space formed by a case main body (A) having a downwardly inclined liquid injection pipe (1) and a swingable openable / closable upper lid (B), Container body (2a)
A liquid container made of vacuum glass (hereinafter referred to as a medium bottle) (2) in which a mouth portion (2b) having a diameter smaller than the maximum body diameter portion of is connected to the upper part of the container body (2a), A first water conduit (4) for guiding the liquid in the bottle (2) to the stopper (3) and a second water conduit (5) for guiding the liquid from the stopper (3) to the liquid injection pipe (1). ), And the liquid in the inner bottle (2) through the inner stopper unit (C) and the liquid injection pipe (1) by pumping air into the inner bottle (2). A manual bellows pump (an example of an air pump) for sending out to the outside of the case body (A) (P)
And a main part thereof are provided to form a thermos bottle which is an example of a liquid container with an air pump.

The case body (A) includes a shoulder member (6) having a through hole (6a) for inserting and holding the liquid injection pipe (1) only upward so as to be held therein and an annular recess (6b) opening downward. )
And a cylindrical case (7) which is elastically fitted and fixed to the shoulder member (6), in other words, which is forcibly fitted and fixed, and the outer peripheral surface of the case (7). A cover (8) having a substantially triangular shape in side view, which covers the outer peripheral portion of the liquid injection pipe (1), is attached by means of screws (9). The triangular cover (8) is slid laterally so as to project to the movement path of the operation member (25) and contact the movement of the operation member (25) to the liquid pouring operation position. A lock operation tool (29) is provided that can be switched between a locked state for blocking and an unlocked state in which the operation member (25) is retracted from the movement path.

The upper lid (B) is fitted to the shoulder member (6) with an outer cover (11) which is vertically swingable around a lateral pin (10), and a state in which a space is appropriately formed in the outer cover (11). An inner cover (13) that is held together, and between the covers (11) and (13) is engaged with the locked piece (6c) of the shoulder member (6) from above. And a coil spring (15) for urging the lock member (14), which is freely movable in the horizontal or substantially horizontal direction and can be engaged and disengaged in the horizontal direction, in the engaging direction.

The bellows pump (P) is configured as follows.

In the annular recess (6b) of the shoulder member (6), the pump chamber (1
A donut-shaped elastic bellows (16) forming 2), and
A bellows cover (19) having a substantially U-shaped cross section, which houses annular support members (17) and (18), whose upper and lower sides are attached in an airtight state by ultrasonic welding means, is screwed and fixed. A cylindrical body (17) which is inserted and fixed from below into an elastic cylindrical body (20) fitted to the shoulder member (6) and also serving as a packing, at one location in the circumferential direction of the upper support member (17).
a) are continuously provided, and the lower support member (18) is
The two through-holes that are displaced 180 degrees from each other in the circumferential direction can open and close the through-holes formed at these points respectively, and the coil spring (2
Hook valve (22) biased to the open position via 1)
Is inserted and locked.

Further, the bellows (16) is contracted to the bracket (23) connected to the bellows cover (19) via the pair of hook valves (22), (22) and the lower support member (18). The operating rod (24) having a V-shape is pivotally attached so as to be vertically swingable, and the other end of the operating rod (24) is pushed down between the liquid injection pipe (1) and the triangular cover (8). Possible protrusions (25a) and notches (8) in the triangular cover (8)
An operating member (25) having a lever (25b) protruding outward through a) is attached so as to be vertically movable.

Outer cover (11) and inner cover (13) of the upper lid (B)
When the upper lid (B) is closed, the upper lid (B) is elastically attached to the upper surface of the plug body (3) while being connected to the upper part of the air circulation hole (26) formed in the plug body (3). When the L-shaped first supply pipe (27) made of an elastic material that also serves as a packing and is press-fitted to the other end of the first supply pipe (27) is communicatively connected and the upper lid (B) is closed. An L-shaped second supply pipe (28) is provided which is in communication with the elastic tubular body (20) and is in pressure contact with the upper end of the elastic tubular body (20). That is, the tubular body (17a) of the upper support member (17) and the elastic tubular body (2
The internal flow passage of (0) constitutes a pump passage (d1) that passes through the shoulder member (6) and sends out air from the air pump (P), and includes a first supply pipe (27) and a second supply pipe (27). 28) and an internal flow path forming an upper lid internal passage (d2) passing through the thick inside of the upper lid (B), and an air circulation hole (26) formed in the stopper (3) is formed in the stopper internal passage (26). d3), and each of these passages (d1), (d2), (d3) constitutes an air supply passage (D) from the air pump (P) to the liquid container (2). And
A part of the air supply passage (D) is formed in a state in which the inner bottle (2) is not penetrated and the space in the upper lid (B) located above the bellows pump (P) is used. .

The bellows (16), the bellows cover (19), the lower support member (18), the hook valve (22), and the operating rod (24), which form the main part of the bellows pump (P),
It is arranged so as to largely enter the space (30) formed between the outer peripheral surface from the mouth portion (2b) of the middle bottle (2) to the shoulder portion and the inner peripheral surface of the case (7).

In this way, by using the relatively large annular shoulder space (30) existing outside the mouth of the middle bottle (2), the main part of the bellows pump (P) is greatly inserted and arranged,
The overall structure can be made as low as possible while improving the stability, which is an important element as a thermos.

With this structure, the air supply passage (D) has the case (7).
Damage due to contact with other things that occurs when it is formed through the outside, or manufacturing defects such as when the air supply passage (D) is formed through the mouth portion (2b) of the inner bottle (2). The profit can be avoided and the pump room (12)
Even if external water or foreign matter enters the inside, it can be favorably suppressed from flowing into the inside bottle (2) through the air supply passage (D).

When the stored liquid is poured out from the thermos configured as described above, when the lever (25b) is pushed down with the fingertip, the operating rod (24) swings up and down in conjunction with this, and the hook valve (22 ) Is closed, the bellows (16) is compressed. The air pressurized by the bellows (16) is discharged into the inner bottle (2) through the air supply passage (D),
Pressurize the surface of the stored liquid. As a result, the stored liquid passes through the inside plug unit (C) and the liquid injection pipe (1) to the case (7)
It is poured out.

When the pushing force of the lever (25b) is released,
The bellows (1
6), hook valve (22), operating rod (24), operating member (2
5) are automatically returned to their original positions.

The hook valve (22) is in a normally open state, and vapor in the middle bottle (2) is released to the outside through the air supply passage (D) to increase the vapor pressure in the middle bottle (2). It is possible to prevent the stored liquid from unexpectedly pouring out from the liquid pouring pipe (1).

Further, the bellows cover (19) can prevent the bellows (16) from being damaged by fragments when the inner bottle (2) is damaged. Further, by screwing and fixing the bellows cover (19) to the shoulder member (6), the upper support member (17) can be simultaneously tightened and fixed between them.

The bellows (16) is composed of a pair of bellows-shaped film bodies (16a), (16b) positioned inside and outside at appropriate intervals.

Further, since a part of the air supply passage (D) is configured by utilizing the internal space of the upper lid (B), a part of the air supply passage (D) is opened to the outside when the upper lid (B) is opened. Is possible,
Maintenance such as cleaning and inspection can be easily performed.

In the above embodiment, the tubular members (17a) of the shoulder member (6) and the upper support member (17) are connected to the hook valves (22), (2).
It was installed at a location that was displaced 90 degrees in the circumferential direction from each other with respect to 2) and a location that was displaced 180 degrees with respect to the liquid injection pipe (1), but as shown in FIG. It may be provided above the valve (22) at a corresponding position, or may be provided at a position other than this.

Further, in the above-described embodiment, the support member (1) fixed to the lower side of the bellows (16) is used as the bellows pump (P).
I used the type of 8) to move up and down.
As shown in the figure, a support member (17) fixed to the upper part of the bellows (16) may be vertically moved. The operation system of the upper actuated bellows pump (P) is such that the upper lid (B) is movable up and down within a certain range and is urged upward through a coil spring (31). 32) and a lock operation tool (33) that can be switched between a locked state that prevents the operation tool (32) from being pushed into the liquid pouring operation position and a lock release state that allows the operation tool (32) to be pushed. ) Is provided, and interlocking pieces (34) and (35) that contact each other in the vertical direction are continuously provided between the operation tool (32) and the upper support member (17).

In the case of this embodiment, the bellows tube (37) is connected for communication between the air supply port of the upper support member (17) and the packing (36) fitted in the through hole of the shoulder member (6). To do.

As a method of providing the air supply passage (D), the following various configurations can be adopted.

(A) As shown in FIG. 6, the upper support member (17) and an annular holding member (61) for holding the lower support member (18) so as to be movable up and down, via a screw (62). Tighten the shoulder member (6) together. The structure relating to the air supply passage (D) is the same as that of the embodiment shown in FIGS.

In the case of this embodiment, not only the upper support member (17) and the annular holding member (61) can be easily attached to the shoulder member (6), but also due to the fragments when the inner bottle (2) is damaged. There is an advantage that damage to the bellows (16) can be prevented.

(B) As shown in FIG. 7, a cylindrical check valve (64) that can open and close the cylinder portion (63) of the upper support member (17) and a cylindrical portion of the lower support member (18). Cylindrical hook valve (6) with flanges (66a) and (66b) that can open and close both openings of (18a).
6) is screw-connected to the check valve (64) and the shoulder member (6).
And a coil spring (67) for urging the check valve (64) and the hook valve (66) in the closing direction, and the lower support of the hook valve (66) when the hook valve (66) is closed. At a location corresponding to the tubular portion (18a) of the member (18), the inside of the hook valve (66) is passed through a gap between the outer peripheral surface of the hook valve (66) and the inner circumferential surface of the tubular portion (18a). A hole (68) for communicating the air with the outside is formed.

In the case of this embodiment, even if the steam in the inner bottle (2) is smoothly discharged to the outside air via the check valve (64) and the hook valve (66), it is discharged into the pump chamber (12). Since it is possible to prevent the invasion of steam, there are advantages that it is possible to prevent the generation of various bacteria and improve the durability.

(C) As shown in FIG. 8, a check valve (70) capable of opening and closing the cylinder body (17a) of the upper support member (17) is screwed and fixed to the lower support member (18).

In the case of this embodiment, since the check valve (70) is also used as the lowering stopper of the lower support member (18), the number of members is reduced due to the common use of the check valve (70), so that the structure can be simplified and assembled. There is an advantage that facilitation can be promoted.

(D) As shown in FIGS. 9 and 10 (a) and (b),
The shoulder member (6) is provided with a packing (72) which, when the upper lid (B) is closed, is fitted into the tubular body (71) connected to the inner cover (13) thereof in a pressure contact state. A valve membrane (72a) having a radial cut in a plan view is integrally connected to the upper part of the packing (72) while being fitted, so that the valve membrane in a free state when the upper lid (B) is opened. When the air supply passage (D) is closed at (72a) and the upper lid (B) is closed, the valve body (72a) is expanded by the tubular body (71) to expand the air supply passage (D). Is configured to open.

According to this embodiment, when the upper lid (B) is opened,
There is an advantage that it is possible to prevent liquid or other substances from entering the pump chamber (12) through the packing (72).

(E) As shown in FIG. 11, an elastic tubular body (20) fitted to the shoulder member (6) is attached to the inner cover (13) of the upper lid (B).
Communication hole (73) and the air passage hole (2) of the plug body (3)
With the packing (74) for connection to 6),
A dish-shaped member (76) forming a passage (75) for communicating and connecting the communication hole (73) and the packing (74) is fixed to the upper surface of the inner cover (13) by ultrasonic welding means or the like.

According to this embodiment, there is an advantage that the passage (75) can be easily manufactured by using the inner cover (13).

(F) As shown in FIG. 12, on the inner cover (13) of the upper lid (B), the packing (74) for connection to the air circulation hole (26) of the plug (3) and the shoulder member (6) are provided. A packing (79) for connection to the intake cylinder (78) and an L-shaped pipe (80) to be connected are provided across both packings (74), (79), and the L-shaped pipe (80) is connected. An intake valve (81) having an opening (80a) formed at a corner portion and capable of opening and closing the opening (80a) and being biased in the opening direction is provided with an L-shaped pipe through a cap nut (82). Install on (80).

In the figure, (83) is a check valve.

According to this embodiment, the intake valve (81) and the check valve (83)
The provision of and has an advantage that steam in the inner bottle (2) can be prevented from entering the pump chamber (12).

Next, an example relating to the water amount display will be described.

(A) As shown in FIG. 13, the bottom of the middle bottle (2) and the horizontal water conduit (84), the water conduit (84) and the vertical water glass display pipe (85), and this water amount. The display tube (85) and the shoulder member (6) are connected to each other through tubular packings (86).

In the figure, (87) is a water amount display window.

In the case of this embodiment, since the pipes (84), (85) and the packing (86) are combined, there is an advantage that the assembling can be facilitated.

(B) As shown in FIG. 14, the upper lid (B) is provided with a T-shaped connecting packing (88) which is one of the constituent members of the air supply passage (D), and the T-shaped connecting packing (88) is provided. ) Inserts and holds an L-shaped tube (89) which is communicated with the upper connection packing (86) of the water amount display tube (85) in a pressure contact state when the upper lid (B) is closed.

In the case of this embodiment, one packing (86) can hold the water quantity display pipe (85) and seal the L-shaped pipe (89). Therefore, the structure can be reduced by reducing the number of parts. Has the advantage that it can be simplified.

(C) As shown in FIG. 15, a connecting packing (86) for fitting and holding the upper portion of the water quantity display tube (85) to the elastic tubular body (20) fitted to the lower opening member (6). Are integrated in a tilted posture.

In the case of this embodiment, the elastic tubular body (20) for forming the air supply passage (D) and the packing (86) for holding the water amount display tube (85) may be treated as one. Therefore, there is an advantage that the assembling can be facilitated.

<Other Examples> [I] The bellows (16) has a bellows shape or a bellows shape, and the bellows (16) has a horseshoe shape instead of a series of donut shapes in plan view. For example, it may be divided into a plurality in plan view, and a plurality of small tubular bellows may be used. In short, there are various shapes of the bellows (16), and it is advisable to select the shape appropriately according to the usage conditions.

[II] The hook valve and the check valve other than those in the above-mentioned embodiments are used.

[III] Apply this plan to liquid containers with air pumps other than thermos bottles.

[IV] An electric pump using an actuator such as an electric motor may be used as the air pump (P). Further, this type of air pump (P) includes a reciprocating pump, a rotary pump, and the like. Further, as the reciprocating pump, there are a piston pump, a plunger pump, and the like in addition to the bellows pump described above.

[Brief description of drawings]

1 to 3 show an embodiment of a liquid container with an air pump according to the present invention. FIG. 1 is a partially cutaway side view, FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along the line III-III in FIG. Figures 4 to 12, and Figures 14 and
FIG. 15 is a cross-sectional view showing another embodiment, FIGS. 10 (a) and (b) are enlarged cross-sectional views of an essential part of FIG. 9, and FIG. 13 is a schematic explanatory view showing a water amount display structure. . FIG. 16 is a vertical cross-sectional view of a main part showing a conventional structure. (2) …… Liquid container, (2a) …… Container body, (2b) ……
Mouth, (3) …… Stopper, (6) …… Shoulder member, (7) ……
Case, (12) …… Space, (11) …… Outer cover, (1
3) …… Inner cover, (16) …… Bellows, (17), (1
8) ... Member, (30) ... Space, (A) ... Case body, (B) ... Top lid, (P) ... Air pump, (D) ...
… Air supply passage, (d1) …… pump passage, (d2) …… upper lid passage, (d3) …… stopper passage.

Claims (7)

[Claims] 1. An upper lid (B) is attached to a case body (A) so as to be rotatable, and a mouth portion having a diameter smaller than a maximum body diameter portion of a container body (2a) is provided in the case body (A). Liquid container (2) in which (2b) is connected to the upper part of the container body (2a)
And an air pump (P) for delivering the liquid in the liquid container (2) to the outside of the case (7), wherein a container near the mouth (2b) ( 2) Inside the space (30) formed between the outer peripheral surface and the inner peripheral surface of the case (7) forming the outer peripheral wall of the case body (A) and the shoulder member (6) forming the shoulder portion of the main body. , The air pump (P) is placed in the inlet position, and the air supply passage (D) from the air pump (P) to the liquid container (2) penetrates the shoulder member (6) and the air pump (P). A pump passage (d1) for sending air from the outer cover (11) and the inner cover (1) which constitute the upper lid (B).
3) comprises a passage (d2) in the upper lid and a passage (d3) in the lid, which is formed by penetrating the stopper (3) for the mouth (2b) of the liquid container (2), A predetermined closing posture of the upper lid (B) and a stopper (3)
At a predetermined closed position, the air pump (P) communicates with the inside of the liquid container (2) through the air supply passage (D), and the upper lid (B) is opened or the plug body is closed. (3)
So that the air supply passage (D) is opened by the opening operation of
A liquid storage container with an air pump, in which a pump passage (d1), an upper lid passage (d2), and a plug passage (d3) that form an air supply passage (D) are configured to be intermittently connectable. 2. A liquid container with an air pump according to claim 1, wherein the liquid container (2) is a vacuum glass medium bottle of a thermos bottle. 3. A liquid container with an air pump according to claim 1, wherein the air pump (P) is of a manual type. 4. The liquid storage container with an air pump according to claim 1, wherein the air pump (P) is of an electric type. 5. The liquid storage container with an air pump according to claim 1, wherein the air pump (P) is a reciprocating pump. 6. A liquid storage container with an air pump according to claim 1, wherein the air pump (P) is a rotary pump. 7. A liquid container with an air pump according to claim 5, wherein the reciprocating pump (P) is a bellows pump.