JPS6025966Y2 - Pump type liquid container - Google Patents

Description

[Detailed description of the invention] The present invention relates to a pump-filling type liquid container in which the liquid in the liquid container can be poured out to the outside through a series of liquid pouring passages using pressurized air from an air pump. .

Some conventional pump-filling liquid containers of this type use a bellows-type air pump 59 as shown in FIG. 1, but the air pump used in the liquid container shown in FIG. 59 is constructed by integrally molding a pump body 69 consisting of a bellows cylinder 70, a pump upper part 71, and a pump bottom part 72 by blow molding.

The suction lower 3 formed on the pump upper part 71 is provided with a hook valve formed by integrally hanging a plurality of engaging pieces 82, 82... each having an outwardly facing latch claw 84 formed at the lower end at the lower part of the base 81. A suction valve 80 of the type shown in FIG.

This suction valve 80 is attached with its engaging pieces 82, 82, . .

Further, a spring 89 for pump extension is provided between the suction valve 80 and the pump bottom 72 to urge the suction valve 80 upward when the pump is at rest.

However, in the air pump 59 of the liquid container shown in FIG. 1, when the pump is compressed, the outward latch claw 84 of the suction valve 80 may get caught on the pump extension spring 89 and cannot be removed. In order to prevent this, special consideration had to be given to the positional relationship between the spring 89 and the suction valve 80.

In addition, when the pump push plate 60 is strongly pressed, the suction valve 80
The latch claw 84 may come into contact with the pump bottom 72,
Therefore, the downward movement of the air pump 59 is restricted by the length of the retaining piece 82, and the amount of air discharged decreases accordingly. It was necessary to set up

In addition, as the air pump 59, the pump body 69 is
Even if the pump has a structure in which a pump top plate and a pump bottom plate, which are separate members, are adhered to the upper and lower hook opening edges of the bellows tube by thermal welding or the like, each of the above-mentioned problems may occur.

As shown in FIG. 1, in the case of the air pump 59 which is integrally formed by molding the pump body 69, as shown in FIG.
A part of the material sag on the lower surface 73a of the mouth rim to form a drooping part X, but this drooping part X needs to be shaved off in a later process to adjust the dimensions when the latch claw 84 of the suction valve 80 is hooked. Additionally, since this hanging portion X is located inside the pump, there is a problem in that it is difficult to cut it.

In addition, in order to avoid such a cutting method, methods such as precisely molding only the 3 parts of the suction lower part of the air pump 59 by injection molding have been used, but in that case, there is a problem that the molding method becomes complicated. However, if only the suction lower 3 portion is made into a separate part to avoid this, the problem arises that the number of parts of the air pump 59 and the number of assembly steps will increase.

In addition, in the conventional pot shown in FIG. 1, the suction valve 80 is guided only by the inner circumferential surface of the suction lower 3, so when the pump is compressed, the suction valve 80 tends to tilt with respect to the suction [173]. There was a risk of air leakage.

Furthermore, in the conventional pot shown in FIG. 1, the pump suction valve 80 is closed by pressing the pump push plate 60. Even in this case, the suction valve 80 is automatically closed and pressurized air is generated in the air pump 59, and as a result, the pressurized air can inadvertently spill the liquid (hot water) in the liquid container. There were problems such as the hot water being poured outside and causing a risk of burns and getting the floor wet.

The present invention was made with the aim of improving the problems of conventional pump-type liquid containers as described above. In a pump injection type liquid container that can be poured out to the outside by air, the upper plate of the air pump is brought into contact with the lower surface of the pump pusher plate provided on the upper part of the air pump, and the suction port provided on the upper plate of the pump is connected. By providing the suction valve that opens and closes facing upward from the top surface of the pump push plate, the suction valve is prevented from closing even if only the pump push plate is pressed by mistake, and the suction valve is biased upward in the valve opening direction and is engaged with the pump push plate to restrict upward movement, so that when the air pump is compressed, the suction valve does not come into contact with the bottom of the pump or the pump expands. It is characterized by being designed so that it does not get caught on the spring.

Hereinafter, the present invention will be explained based on the illustrated embodiments. Figs. 3 to 5 show the first embodiment of the invention, Fig. 6 shows the second embodiment of the invention, and Figs. 7 and 8 show the first embodiment of the invention. A pump-type liquid container according to the third embodiment is shown.

In the pump injection type liquid container of the first embodiment shown in FIGS. 3 to 5, reference numeral 1 indicates a liquid container main body, and 2 indicates a lid unit. It is worn.

The liquid container main body 1 houses a liquid container 5 made of a vacuum double bottle in an outer case 4, further has a lower mouth member 6 placed and fixed on the upper part of the outer case 4, and has a series of parts that connect the inside and outside of the liquid container 5. It is configured to include a liquid pouring passage 8.

A liquid supply lower is formed approximately at the center of the lower mouth member 6.

The liquid pouring passage 8 includes a vertical pipe 11 arranged vertically in the liquid container 5 and a horizontal pipe part 12 formed horizontally in the lower mouth member 6.
The upper end of the vertical tube 11 is connected to the proximal end of the horizontal tube section 12 via a joint tube 14, and the spout tube 13 is connected to the proximal end of the horizontal tube section 12. Connected to the distal opening.

The lid unit 2 is constructed by accommodating a bellows-type air pump 9 inside the lid 3 and integrally forming a frame 16 on the lower surface of the lid 3 for opening and closing the liquid supply lower.

When the lid is closed, the gasket 17 provided on the outer periphery of the frame 16 closes the liquid supply lower and also closes the bottom 22 of the air pump 9.
A discharge port 24 formed in the liquid container 5 opens into the liquid container 5.

The main body 19 of the air pump 9 is formed by blow molding in this embodiment, and a bellows cylinder 20, a pump upper part 21, and a pump bottom part 22 are integrally molded.

The center portion of the pump bottom 22 is recessed into the frame 16 by an appropriate depth, and the lower surface of the pump bottom 22 is brought into close contact with the upper surface of the bottom plate 15 of the lid 3.

A suction port 23 is formed in the center of the pump upper part 21.

Further, an annular wall 25 having an appropriate height upward is integrally formed at the mouth edge of the suction port 23.

At the lower end of the outer surface of this annular wall 25 is a pump push plate 10, which will be described later.
A circumferential groove 27 is formed into which the edge of the hole 540 fits.

A pump push plate 10 for compressing the air pump and a suction valve 30 for opening and closing the suction port 23 are provided on the upper part of the pump upper part 21 .

The pump push plate 10 is guided by the inner circumferential surface of a push plate sliding hole 18 formed in the center of the upper part of the lid body 3 so as to be able to move up and down.

. Further, a recess 51 for accommodating the suction valve 30 is formed in the center of the pump push plate 10.

This recessed portion 51 has an annular side wall portion 52 and a bottom wall portion 53.

Further, a hole 54 is formed in the bottom wall portion 53 to fit into a circumferential groove 27 formed on the outer surface of the annular wall 25 of the pump upper part 21, and the mouth edge of the hole 54 is forced into the annular wall circumferential groove 27. By fitting, the pump push plate 10 and the pump upper part 21 are integrally connected.

Therefore, when the pump push plate 10 moves upward, the pump upper part 21 also moves upward at the same time, so that the air pump 9 is extended.

The upper part of the annular wall 25 projects upward from the upper surface of the bottom wall part 53 within the push plate recessed part 51.

The suction valve 30 is a hook valve type in which a plurality of (four in this embodiment) leg-shaped engaging pieces 32, 32, etc. are integrally hung from the outer periphery of a circular base 31. It has been adopted.

The outer shape of this suction valve base 31 is the side wall portion 5 of the push plate recess 51.
The outer surface of each engaging piece 32, 32, . . .
The suction valve 30 is in almost sliding contact with the inner surface of the intake valve 30.
is prevented from tilting within the push plate recessed portion 51.

At the lower end of each of the engaging pieces 32, 32, . . . of the suction valve 30, outward latching claws 33, 33, .

On the other hand, the side wall portion 52 of the push plate recessed portion 51 has window hole-shaped locking receiving portions 55, 55 and 55 for respectively locking the locking claws 33 formed on the suction valve engaging piece 32 at the lower end thereof. ... is formed.

The suction valve 30 has its respective engaging claws 33, 33 and 33.
. . . are mounted in the pump push plate recessed portion 51 by being latched from the inside to each of the latching receiving portions 55, 55, .

Moreover, this suction valve 3° has its respective engaging pieces 32, 32...
The respective engaging pieces 32, 32, . installed by.

It should be noted that each of the engaging pieces 32, 32, etc. of the suction valve 30 can be bent inward to a large extent, making it easier to install the suction valve 30 in the push plate recess 51, and the engaging pieces 32, 32... There is an effect that a large margin for engagement of the latching pawl 33 with the latching receiving portion 55 can be provided, and the engagement of the latching pawl 33 is ensured.

The latch claw 33 on the suction valve 30 side is movable in the vertical direction within the range of the latch receiver 55 on the push plate recess 51 side, and the suction valve 30 is also latch on the pump push plate 10. The valve can be opened and closed by moving up and down within the range of vertical movement of the pawl 33.

A pump suction port 23 (annular wall 2
A gasket 36 is attached to seal the upper end opening of the suction valve base 31, and dual inner and outer guide cylinders 35 and 34 are integrally formed on the lower surface of the suction valve base 31.

The inner guide tube 35 guides the upper part of a pump extension spring 39 (described later), and the outer guide tube 3
4 is inserted into the annular wall 25 of the pump upper part 21 to prevent the suction valve 30 and the pump upper part 21 from shifting from each other in the horizontal direction.

A pump extension spring 39 is provided between the lower surface of the suction valve base 31 and the upper surface of the pump bottom 22, and when the pump is not in operation, the suction valve 30 is pushed upward by the spring 39, so that the latch claw 33 of the suction valve 30 is pushed upward. The pump push plate 10, which is held by the pump, is moved upward, and the pump upper part 21 is further moved upward.

When dispensing liquid from the pump injection type liquid container of this first embodiment, as shown in FIG. When the plates 10 are pressed at the same time, the air pump 9 contracts and pressurized air from the air pump 9 is blown into the liquid container 5, and the pressurized air causes the liquid W in the liquid container 5 to be poured out in a series of liquids. It can be poured outside through a passage 8.

Furthermore, in the pump-filled liquid container of the first embodiment, even if an infant or the like accidentally presses the pump push plate 10, the suction valve 30 remains open unless the suction valve 30 is simultaneously pressed. Therefore, pressurized air is not generated within the air pump 9.

Therefore, the liquid will not be inadvertently poured out due to erroneous operation of the pump push plate 10, thereby increasing safety.

In the pump injection type liquid container of the second embodiment shown in FIG.
The engaging piece 32 of the suction valve 30 is attached to the bottom wall portion 53 of the push plate recessed portion 51.
Window-shaped latching receivers 55, 55, .
The suction valve 30 is attached by engaging the respective latching claws 33, 33, . . . of the suction valve engaging pieces 32, 32, .

In the pump-injection type liquid container of the third embodiment shown in FIGS. 7 and 8, an annular retaining piece 62 is formed on the outer periphery of the suction valve 30, and the engaging piece 62 is provided with appropriate circumferential direction. A plurality of (four in this embodiment) window hole-shaped hook receivers 65 are arranged at intervals.
65..., and a hooking receiving part 65 on the side of the suction valve 30 is formed on the side wall part 52 of the recessed part 51 of the pump push plate 10.
, 65 . . .
... is formed, and the suction valve 30 is attached by engaging the latch receiving portion 65 with the latch claw 63.

In the pump injection type liquid containers of each of the illustrated embodiments, the main body 19 of the air pump 9 is integrally molded by blow molding. The material may sag on the lower surface 23a of the mouth rim (symbol X'), but the suction valve 3
0 is engaged with the pump push plate 10 side, so the suction port 2
Even if sagging X' occurs on the lower surface 23a of the mouth edge of No. 3, it can be used as is without cutting it.

In addition, in each of the illustrated embodiments, the pump suction valve 30 is guided by its outer periphery, so the posture of the suction valve 30 is stable and difficult to tilt when the pump is compressed).
This has the effect of preventing air leakage, which tends to occur when the suction valve 30 is tilted.

In each of the illustrated embodiments, the pump main body 19 is integrally molded by blow molding, but in other embodiments, the main body 19 of the air pump 9 is formed by forming the upper and lower opening edges of the bellows tube. It is also possible to use a pump top plate and a pump bottom plate that are bonded and integrated by heat welding or the like.

Next, to explain the effects of the present invention, the pump injection type liquid container of the present invention has the following effects.

(1) Since the pump suction valve 30 is locked to the pump push plate 10, it is possible to eliminate the trouble of the suction valve 30 getting caught on the pump extension spring 39 when the air pump 9 is compressed, and also to avoid such problems. It is possible to omit the special pump structure conventionally used to prevent troubles.

(2) Even when the air pump 9 is over-contracted, the engagement piece of the suction valve does not collide with the bottom of the pump unlike in the conventional case (FIG. 1), and the suction valve 30 can be protected.

(3) Since the suction valve 30 is not inside the air pump 9, the air pump 9 can be contracted to the maximum extent,
Even if the air pump has the same capacity, it is possible to increase the amount of air discharged.

Since the air pump upper plate 21 is placed in contact with the lower surface of the pump pusher plate 10 and the suction valve 30 is provided so as to face upward from the upper surface of the pump pusher plate 10, if a child or the like accidentally accidentally touches the pump pusher plate 30, Even when the suction valve 30 is pressed, the suction valve 30 will not be closed unless the suction valve 30 is pressed at the same time, so the liquid in the liquid container 5 will not be inadvertently poured out, improving safety. do.

In each of the illustrated embodiments, the main body 1 is used as an air pump.
9 is integrally molded by blow molding, but in the present invention, the suction valve 30 is hooked on the outside of the air pump. Even if the material sag X' occurs in the material 23a, there is no need to cut it, which has the advantage of reducing the processing cost of the air pump.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the upper part of a conventional pump injection type liquid container.
FIG. 2 is a partial sectional view of the air pump used in the liquid container of FIG. FIG. 3 is a partially exploded perspective view of the liquid container, FIG. 5 is an explanatory diagram of how to use the liquid container of FIG. 3, and FIGS. 6 and 7 are pumps according to the second and third embodiments of the present invention, respectively. FIG. 8 is a partial longitudinal cross-sectional view of the injection type liquid container, and FIG. 8 is a perspective view of a partial group of the liquid container shown in FIG. DESCRIPTION OF SYMBOLS 1... Liquid container main body, 2... Lid unit, 3... Lid body, 5... Liquid container, 8...
...Liquid pouring passage, 9...Air pump, 10...Pump push plate, 21...Pump top, 22...Pump bottom , 23...
・Suction port, 30... Suction valve, 32, 62...
...Descent piece, 39...Pump extension spring.

Claims (1)

[Scope of utility model registration request] This is a pump-filling type liquid container in which the liquid stored in the liquid container 5 of the liquid container main body 1 can be poured out to the outside by pressurized air from a bellows-type air pump 9. While bringing the plate 21 into contact with the lower surface of the pump push plate 10 provided on the upper part of the air pump 9,
A suction valve 30 for opening and closing the suction port 23 provided on the pump upper plate 21 is provided so that the suction valve is biased upward in the valve opening direction and engaged with the pump push plate 10 to restrict upward movement. A pump injection type liquid container, characterized in that it is provided facing upward from the upper surface of a pump push plate 10.