JPS64854Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to an electric pressurized dispensing type liquid container used to dispense liquid to the required amount as needed and store it for use. Applicable.

BACKGROUND ART Pressurized dispensing type liquid containers are widely used because the structure for dispensing the contents is simple and causes little trouble. Most pressure pumps that apply pressure to push out and pour out the liquid have a structure in which air is supplied into the container through a stopper attached to the mouth of the container, and the liquid is forced out through the nozzle. However, in this case, there are problems in that moisture such as steam generated from the liquid content tends to have an adverse effect on the electric pressure pump and the like, and the upper lid becomes complicated and large. In order to solve this problem, Japanese Utility Model Application Publication No. 57-27228 places an electric pressure pump at the bottom of the container body, and uses an air supply path rising from this point to remove the air from the pressure pump. We have proposed an electric pressurized pour-out type liquid container in which compressed air is fed under pressure to a pressurized air supply port at the top of the container body. In this conventional example, a check valve is placed in the middle of the air supply path,
This prevents liquid from flowing backwards from the pressurized air supply port to the electric pressurized pump.

Problems to be Solved The check valve of the conventional example is disposed at a location connected to the pressurized air supply port, that is, at a horizontal connection portion of the air supply path. This check valve is composed of a rubber reed valve. For this reason, the check valve is seriously affected by the heat of the liquid content, especially its steam, and is susceptible to rubber deterioration due to heat. When the rubber of the reed valve deteriorates, permanent deformation occurs and the elastic restoring force is lost. This will be significantly impaired by the influence of gravity, and the backflow prevention function will deteriorate.

Means for Solving the Problems In order to solve the above-mentioned problems, this invention aims to solve the above-mentioned problems by providing an electric motor which is located below the pressurized air supply opening opening at the upper part of the inner circumference of the container and has an air supply path connected to the pressurized air supply opening. An electric pressurized pouring type liquid container including a pressurizing pump, and a check valve for preventing at least backflow of liquid from the pressurizing air supply port to the electric pressurizing pump is provided in the middle of the air supply path. A diaphragm type check valve is disposed at a proper position in the vertical part of the air passage, and a portion around the diaphragm valve provided with a communication hole is in close contact with a valve seat located below.

Function The check valve of this invention is installed at an appropriate position in the vertical part of the air supply path, so it can be placed at a distance from the pressurized air supply port. Despite being a valve, the thermal effects of the liquid content and its vapor can be reduced compared to conventional examples, and the degree of rubber deterioration can be kept low.

In addition, this diaphragm check valve is constructed so that the area around the valve body with the communication hole is in close contact with the valve seat located below, so even if the valve body rubber deteriorates, Even if the elastic restoring force is reduced, the backflow of fluid can be reliably prevented due to the nature of the diaphragm and the property that gravity acts in the direction of closing the communication hole.

Embodiment To explain the embodiment shown in FIGS. 1 and 2, a liquid container 3 is formed by housing a wide-mouth inner container 2 made of aluminum in an exterior case 1 made of steel plate. The outer case 1 has a synthetic resin bottom ring 4 at the lower end.
A shoulder ring 5 made of synthetic resin is attached to the upper end, the mouth flange of the inner container 2 is received on the inner peripheral edge of the shoulder ring 5, and a bottom ring 6 made of a steel plate is applied to the bottom of the inner container 2 and the bottom ring 4. Each member is integrally assembled by connecting with screws 8 via a connecting frame fitting 7 attached to the lower surface of the bottom of the vessel 2 by spot welding. Water boiling and heat-retaining heaters 9 are wound around the outer periphery of the lower part of the inner container 2, and an electric control section 10 is provided on the bottom surface of the inner container 2 to control energization of the heaters 9 in accordance with the temperature of the content liquid. A power connection port 11 for connecting to an external power source is provided on the outer periphery of the lower end of the exterior case 1 .

A stopper lid 13 is attached to the mouth of the inner container 2 and has a spouting path 12 for leading out the content liquid to be forced out by pressurization to the outside. The lid 13 is made of a stainless steel plate with a seal packing 14 attached to the outer periphery and is seated on the mouth of the inner container 2, and a knob head 13a made of synthetic resin having the spout passage 12 is attached to the upper center surface. The part of the spouting passage 12 that hangs down from the head 13a into the inner container 2 is a stainless steel pipe, and the part that projects from the head 13a to one side of the upper end of the container body 3 is a synthetic resin pipe. They are communicated by a passageway, and a known water stop valve in case of overturning is provided in the passageway inside the bed 13a.

A pipe cover 14 is provided on the upper front surface of the container body 3 with its seat plate 15 sandwiched between the shoulder ring 5 and the exterior case 1. In the pipe cover 14, a downward guide path 16 that receives the liquid to be poured out from the spout path 12 and guides it downward is formed vertically by a combination structure of a fixed tube 16a and a vertical movement tube 16a, and the vertical direction of the vertical movement tube 16a is vertically formed. The height of the lower end spout 16c can be adjusted by guiding the movement. 16c is the vertical movement pipe 16
The external operation part a projects from the pipe cover 14.

A lid 17 covering a portion of the pipe cover 14 including the protruding portion is placed on the upper end of the container body 3, and is pivotally supported by a shaft 18 to the rear of the shoulder ring 5 so as to be openable and closable. The lid body 17 has a steam vent passage 1 formed through the knob head 13a separately from the spout passage 12.
A steam release path 20 is provided which is connected to the lid body 9 and guides steam to the outside of the lid body 17. The steam release path 20 is a connecting tube 20a provided at the center of the inner bottom 17a of the lid body 17.
and a conduit 20b extending laterally from the connecting tube 20a and opening to the outside of the lid 17. The connecting tube 20a has a seal packing 2 attached to the lower end.
1, the knob head 13a is connected to the passage 19 by pressure contact around the opening of the steam vent passage 19 on the top surface of the knob head 13a so as to be able to come into and out of the passage 19 without causing steam leakage. A valve seat 20c is formed in the middle of the connecting cylinder 20a, and the pipe line 20b is formed above the valve seat 20c.
is provided.

A flexible cap valve body 20d facing the valve seat 20c is attached to the upper end opening of the connecting cylinder 20a, and is always kept away from the valve seat 20c by the upward bias of a spring 22.

A pressurized air supply port 23 is located at the front near the top of the inner container 2.
is opened, and an air supply path 25 from an electric pressurizing pump unit 24 arranged under the bottom of the inner container 2 is connected thereto. The pump unit 24 is screwed 26 to the inner surface of the lower end of the seat plate 15 of the pipe cover 14, and the air supply path 25 is made of a flexible tube that penetrates a part of the insulation wall 39 around the outside of the inner container 2 to supply the pressurized air. Air supply port 2
Connected to 3. Pressurized air supply port 2 of air supply path 25
Near the connection to 3 is a screw 40 on the underside of the shoulder ring 5.
The pump unit 2 is lifted above the pressurized air supply port 23 by the synthetic resin suspension 27.
An upward passage 25a toward the fourth side is formed. In addition, at appropriate locations in the vertical part of the air supply path 25, the marks shown in Figs.
A check valve 61 shown in the figure is disposed, and the details will be described later.

An operating switch 28 of the pump unit 24 is attached to the lower surface of the front protrusion 51 covered by the pipe cover 14 of the shoulder ring 5, and the operating switch 28 of the switch 28 is inserted into the operating hole 2 of the pump unit 24.
9 is provided on the shoulder ring 5 with a seal cover 30 provided thereon. A switch operation member 31 is provided in a portion of the lid body 17 facing the operation hole 29 so as to be movable up and down, and is always kept at the upward return position by the upward bias of a spring 32. Top plate 1 of lid body 17
A safety stopper 34 is provided next to the protruding portion of the operating member 31 at 7b and moves in and out of the rearward engagement recess of the operating member 31 by moving forward and backward, thereby enabling or disabling the operating member 31 to be pushed down. Operation member 31
It has an operating rod 31a for pushing and operating the switch 28 through the operating hole 29. A decorative bottom plate 35 is fixed with screws 33 under the inner bottom 17a of the lid body 17,
Only the lower ends of the operating rod 31a and the connecting tube 20a are made to protrude downward. Between the top plate 17b of the lid body 17 and the middle bottom 17a, one end is connected to the middle bottom 17a with a shaft 36.
A dispensing auxiliary lever 38 is provided, the other end of which contacts a part of the switch operating member 31 from below under the bias of a spring 37 and is linked to the vertical movement of the switch operating member 31. It is arranged to face the cap valve body 20d at the upper end of the connecting tube 20a.

The liquid in the inner container 2 is boiled by a heater 9 and kept warm. A large amount of steam generated by boiling water is released to the outside through a steam release passage 19 provided in the knob head 13a of the faucet lid 13 and a steam release passage 20 of the lid body 17. This prevents the pressure inside the inner container 2 from increasing due to a large amount of steam generated even when the lid body 17, which is kept closed by a locking means (not shown), presses and holds the stopper lid 13 in the closed state. do.

The switch operation member 31 is moved to the safety stopper 34.
When the switch 28 is released from the lock and pressed down, the switch 28 is pushed and the dispensing auxiliary lever 38 is also moved down. The lever 38 moves downward to push down the cap valve body 20d and press it against the valve seat 20c, so that the connecting tube 20a is closed. Since the switch 28 activates the pump unit 24 by pushing the switch 28, air is supplied from the pump unit 24 into the inner container 2 through the air supply path 25 and the air supply port 23.

When air is supplied into the inner container 2, the pressure inside the inner container 2 increases because the connecting tube 20a is closed, and the inner liquid is pressurized from its liquid level. The pressurized content liquid is pushed out through the pouring path 12. The liquid content to be poured from the pouring path 12 is guided downward through a downward guide path 16, and the liquid is guided downward through a height-adjusted spout 16.
The liquid is poured into a desired container etc. from c.

Condensation water may adhere to the air supply port 23 or near the air supply port 23 of the air supply path 25, the liquid level may shake due to carrying the container body 3, or the liquid may be supplied beyond the opening of the air supply port 23. Even if the content liquid gets into the air supply port 23 or the cleaning liquid comes into contact with it during cleaning, it will not go beyond the upstream passage 25a in the middle of the air supply path 25 and will not reach the pump unit 24. .

In the second embodiment shown in Fig. 3 and Fig. 4, the lower part of the air supply passage 25 is bent in a U-shape to form the upward passage 25a. The electric pressure pump unit 24 is mounted on the inner protruding part 4a of the bottom ring 4.
The corner piece 4b is positioned and fixed with a screw 41, and a hook 42 integrally formed with a part of the bottom ring 4 pulls a part of the air supply passage 25 downward from the connection position with the pump unit 24, and the upward passage 25
In this case, no special air supply duct hook or attachment is required.

In the third embodiment shown in FIGS. 5 and 6, a part of the air supply path 25 is connected to a lower level than the connection part to the unit 24 by means of a hook 52 formed by cutting out a part of the casing 51 of the electric pressurizing pump unit 24. 25a, and has the same characteristics as the second embodiment. Even if liquid accumulates in the U-shaped part, it will be pushed out the next time air is supplied, and the amount will not increase sequentially.

If the structure of the check valve 61 shown in FIGS. 7 and 8 is implemented in all the embodiments, the check valve 61 is provided in the middle of the air supply path 25, and 23 to the electric pressure pump unit 24,
Prevents backflow of fluids, including steam. The intake port 62 of the pump unit 24 is opened under the bottom of the outer case 1, and sucks in glass wool dust, etc. that forms the heat insulating wall 39 between the outer case 1 and the inner container 2, and prevents it from being contained in the supplied air. I try not to let anything happen.

The check valve 61 has a valve seat 6 on the pump unit 24 side.
The diaphragm valve 65 has a communication hole 64 formed in a part of the part that comes into close contact with the valve seat 63, and when the valve is closed, the surrounding part of the diaphragm valve 65 comes into close contact with the valve seat 63 located on the lower side to ensure that the valve seat 63 is closed. Backflow can be prevented.

The fourth embodiment shown in FIGS. 9 and 10 is
An upward passage 25a similar to the first embodiment and a check valve 61 shown in FIG. 8 are provided in the middle of the air supply passage 25 to prevent liquid from flowing into the air supply passage 25 from the air supply port 23 as much as possible. However, even if the liquid flows into the air supply path 25 and exceeds the upward passage 25a, the check valve 61 can reliably prevent the liquid from reaching the pump unit side. A check valve 61 is held in a bifurcated holder 71 integrally formed with a part of the hanging tool 27.

The fifth embodiment shown in FIG.
The check valve 61 is held by a heat insulating material stopper 81 protrudingly provided on the outer circumference by spot welding or the like.

The sixth embodiment shown in FIG.
A portion 13a is located near the opening of the air supply port 23 of the inner container 2, and prevents the content liquid from reaching the air supply port 23, thereby preventing backflow to the air supply path 25. Although the structure is the simplest, it is better to use it together with the upward passage 25a and the check valve 61 in order to prevent backflow.

In the seventh embodiment shown in FIG. 13, the actuation switch 28 of the pump unit is attached to the rear back side of the shoulder ring 5, and the passive part is made to protrude from the upper surface of the shoulder ring 5. For this reason, the steam release path 20 is extended toward the front side of the shoulder ring 5, and is configured to release steam to the upper surface of the lid body 17, etc. The pouring auxiliary lever 38 is connected to the lid body 1.
7 is arranged between the middle bottom 17a and the top plate 17b,
The operating portion 38b protruding onto the top plate 17b is directly pressed, and the switch 28 is operated by the tip operating portion 38c.
, the cap valve body 20 is moved by the intermediate operating protrusion 38a.
d can be pushed and moved at the same time.
A steam release path 20 consisting of a connecting tube 20a having a cap valve body 20d and a conduit 20b extending from the connecting tube 20a is arranged on the bottom plate 35 of the lid 17 as a single molded product.

Effects According to this invention, it is possible to provide an electric pressurized pouring type liquid container that can reliably prevent backflow in the air supply path.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional side view of the main part of the first embodiment, Fig. 2 is a perspective view of some parts, Fig. 3 is a sectional view of the main part of the second embodiment, and Fig. 4 is a side view of the main part of the first embodiment. Slope view of the section, No. 5
The figure is a sectional view of the main part of the third embodiment, Fig. 6 is a perspective view of the electric pressure pump unit, Fig. 7 is a sectional view of the main part of the backflow prevention structure implemented in each embodiment, and Fig. 8 is a reverse view. A sectional view of the stop valve, FIG. 9 is a sectional view of the main part of the fourth embodiment, FIG. 10 is a perspective view of some parts, FIG. 11 is a sectional view of the main part of the fifth embodiment, and FIG. FIG. 13 is a partial sectional view of the seventh embodiment. {1... External case, 2... Inner container} 3... Container body, 9... Water heaters, 12... Dispensing channel, 13... Cap lid, 17... Lid body, 23... Pressurization Air supply port, 24...Electric pressure pump unit, 2
5... Air supply path, {25a... Up passage, 61...
Check valve, 13a...Part of the stopper lid} Backflow prevention means, 2
8...Activation switch.

Claims (1)

[Scope of utility model registration request] An electric pressurizing pump is provided, the electric pressurizing pump is located below the pressurizing air supply opening opening at the upper part of the inner periphery of the container, and has an air supply path connected to the pressurizing air supply opening, In an electric pressurized pouring liquid container equipped with a check valve that prevents at least the backflow of liquid from the air supply port to the electric pressure pump, a diaphragm check valve is arranged at an appropriate position in the vertical part of the air supply path. , an electric pressurized pouring type liquid container characterized in that a portion around the diaphragm valve provided with a communication hole is in close contact with a valve seat located on the lower side.