JPH0443110Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a pot equipped with a manual pump.

(Prior Art) A conventional pot of this type has a sealing lid attached to the upper opening of the pot body, and a manual pump is disposed inside the lid. The pressure in the storage chamber of the pot body is increased by the discharge air pressure of the pump, and the contents are discharged from the discharge pipe communicating with the storage chamber.

(Problem to be solved by the invention) In the above pot, the handle of the manual pump exposed on the lid body is pushed in, thereby contracting the expansion/contraction chamber formed by the bellows body, and sending the air from the chamber into the storage chamber. I'm here.

When the pressure on the handle is released, the expansion/contraction chamber expands due to the spring force and returns to its original shape, preparing for the next pressing operation.

Therefore, among the steps in which the expansion/contraction chamber expands and contracts, the work of discharging the contents in the pot is performed only in the contraction step, and the expansion step involves play, resulting in poor discharge efficiency.

The present invention discloses a pot equipped with a manual pump that can perform dispensing operations during both expansion and contraction processes of the expansion and contraction chamber.

(Means for Solving the Problems) The pot of the present invention is characterized by a manual discharge pump 4 provided in the lid 3, and the pump 4 has an expansion/contraction chamber 5 in the pump case 41 that can be expanded and contracted up and down,
The expansion/contraction chamber 5 and the accommodation chamber 13 of the pot main body 1 are
A first valve body 71 is provided in the passage 7 to allow communication only from the expansion/contraction chamber 5 into the accommodation chamber 13 due to an increase in the pressure in the expansion/contraction chamber 5 .

The pump auxiliary chamber 6 formed between the expansion/contraction chamber 5 and the pump case 41 and the storage chamber 13 are communicated with each other through a second passage 8, and the passage 8 is filled with water due to the increase in pressure in the pump auxiliary chamber 6. From the auxiliary room 6 to the storage room 13
A second valve body 81 is provided that allows flow only to the air.

The expansion/contraction chamber 5 has a spring 4 that biases the chamber in the expansion direction.
3 and a handle 44 for pushing the expansion/contraction chamber 5 in the compression direction against the spring 43, and the expansion/contraction chamber 5 is further provided with a check valve 50 that allows external air to flow only into the expansion/contraction chamber 5. A first hole 51 is provided.

The pump auxiliary chamber 6 is provided with a second hole 61 equipped with a check valve 60 that allows external air to flow only into the auxiliary chamber 6.

(effect) Push the pump handle against the spring 43.

The expansion/contraction chamber 5 contracts, and the air in the chamber flows into the storage chamber 13 through the first passage 7. The pressure in the storage chamber 13 increases and the stored material is discharged from the discharge pipe 2.

Due to the contraction of the expansion/contraction chamber 5, the pump auxiliary chamber 6 becomes under negative pressure, and outside air flows into the auxiliary chamber 6 via the second check valve 60.

When the pressure on the handle 44 is released, the expansion/contraction chamber 5 expands due to the force of the spring 43 and returns to its original shape.

When the expansion/contraction chamber 5 is expanded, outside air flows into the expansion/contraction chamber 5 through the first check valve 50, and the air in the auxiliary chamber 6 is forcibly discharged into the accommodation chamber 13 through the second passage 8. The pressure inside increases. As a result, even when the pressure on the handle 44 that has been pushed once is released, the pressure inside the storage chamber 13 increases and the stored material can be discharged.

(Effect of the invention) The contents can be discharged in both the process of shrinking the expansion chamber 5 by pressing the handle 44 and the process of expanding the expansion chamber 5 by releasing the pressure of the handle 44, and by repeatedly pressing the handle 44. Contents can be efficiently discharged by reducing the number of times.

(Example) The pot body 1 with an opening on the top has an outer wall 11 and an inner wall 1.
It is formed in a double structure of 2, and the part surrounded by the inner wall 12 serves as a storage chamber 13.

A heater (not shown) and a discharge pipe 2 are arranged between the outer wall 11 and the inner wall 12, one end of which opens at the bottom of the storage chamber 13, and the other end extends to the top of the main body 1, with the tip end diagonally. Bend downward to open the discharge port 21
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The lid 3 is formed into a hollow body by an upper plate 31 and a lower plate 32, and is pivoted to the main body 1 at a symmetrical position with respect to the discharge port 21 of the main body 1 so as to be openable and closable in the vertical direction. A locking means (not shown) is connected to the lid 3 to prevent the lid 3 from opening when the internal pressure of the storage chamber 13 of the main body 1 increases.

A manual pump 4 is disposed inside the lid 3, and the pump 4 has a sealed pump case 4 approximately in the center of the lid 3.
1, and a closed bellows body 42 that can be expanded and contracted in the vertical direction is provided inside the case 41.

The upper plate 31 of the lid body 3 has a circular opening corresponding to the upper surface of the case 41.

The inside of the bellows body 42 is an expansion/contraction chamber 5, and a spring 4 is applied to the chamber to bias the bellows body 42 in the direction of expansion.
3 are deployed.

A pump auxiliary chamber 6 is formed between the pump case 41 and the bellows body 42.

A presser plate 48 is joined to the upper surface of the bellows body 42, and a push handle 44 is connected to the plate.

The handle 44 is formed by a peripheral wall 46 on the circumferential surface of a circular plate, and a mounting shaft 47 protruding downward from the center thereof. It is connected to plate 48.

The peripheral wall 46 of the handle 44 is slidably fitted between the opening edge of the lid 3 and the pump case 41,
A retaining collar 49 is provided on the lower edge of the peripheral wall 46 and projects outward, and the collar 49 comes into contact with the lower surface of the opening edge of the lid 3 to prevent the handle 44 from coming off.

A first valve body 71 that communicates the expansion/contraction chamber 5 and the accommodation chamber 13 through a first passage 7 and allows flow through the passage only from the expansion/contraction chamber 5 to the accommodation chamber 13 as the pressure in the expansion/contraction chamber 5 increases. Deploy.

In addition, the pump auxiliary chamber 6 and the storage chamber 13 are communicated through a second passage 8, and the passage allows flow only from the pump auxiliary chamber 6 to the storage chamber 13 as the pressure in the pump auxiliary chamber 6 increases. A second valve body 81 is provided.

In the embodiment, the downstream sides of the first passage 7 and the second passage 8 are connected to the storage chamber 13 through a common passage 70, and the first valve body 71 and the second valve body 81 are connected to the storage chamber 13 through a common passage 70. and the common valve body 9 is connected to the common passage 70.
A hole 72 communicating with the accommodation chamber 13 is provided in the wall surface of the common passage 70, and the valve body 9
The hole 72 is opened and closed by the slide.

The expansion/contraction chamber 5 is provided with a first hole 51 provided with a check valve 50 that allows external air to flow only into the expansion/contraction chamber 5 .

As shown in FIG. 3, the check valve 50 closes the hole 51 with a flexible valve plate 52 screwed into the expansion chamber 5, and when the internal pressure and external pressure of the expansion chamber 5 are the same or the internal pressure is high. In this case, the valve plate 52 closes the hole 51, and when the external pressure is high, the valve plate 52 bends inward to open the hole 51.

In addition, the pump auxiliary chamber 6 is supplied with external air.
A second hole 6 equipped with a check valve 60 that allows flow only inward.
1 has been established. The structure of the check valve 60 is similar to that of the check valve 50 of the expansion/contraction chamber 5, in which the hole 61 is opened and closed by a flexible valve plate 62 based on the pressure difference between the inside and outside of the auxiliary chamber 6.

An auxiliary pipe 63 extending outside the lid body 3 is connected to the pump auxiliary chamber 6, and an airtight lid 64 that can be opened and closed manually is provided at the tip of the pipe.

As shown in FIG. 4, the airtight lid 64 has a lid plate 65 pivotally supported at the tip of the auxiliary tube 63 so as to be able to open and close in the vertical direction, and a downwardly directed stopper 66 protruding from the center of the lid plate 65. A rubber body 67 is annularly attached to the inner surface of the tip of the auxiliary space, and the plug body 66 is hermetically fitted into the hole 68 of the rubber body 67.

A finger hook piece 69 is provided protruding from the cover plate 65, and by operating the finger hook piece 69 with a finger, the cover plate 65 can be opened and closed, and the auxiliary chamber 6 can be isolated from or communicated with the outside air.

Therefore, the pump handle 44 is pushed against the spring 43.

The expansion/contraction chamber 5 contracts, and the air in the chamber passes through the first passage 7 and presses the valve body 9 toward the second passage 8, and the common passage 7
0 hole 72 is opened to flow into the storage chamber 13. The pressure in the storage chamber 13 increases and the contents in the pot are discharged from the discharge pipe 2.

Due to the contraction of the expansion/contraction chamber 5, the pump auxiliary chamber 6 becomes under negative pressure, and outside air flows into the auxiliary chamber 6 via the second check valve 60.

When the pressure on the handle 44 is released, the expansion/contraction chamber 5 expands due to the force of the spring 43 and returns to its original shape.

When the expansion/contraction chamber 5 expands, outside air flows into the expansion/contraction chamber 5 via the first check valve 50, and the air in the auxiliary chamber 6 is forcibly discharged from the second passage 8, causing the valve body 9 to move toward the first passage 7. Press to release hole 72.

The exhaust air flows into the containment chamber 13 and increases the pressure in the chamber 13. As a result, even when the pressure on the handle 44 that has been pushed once is released, the pressure inside the storage chamber 13 increases and the stored material can be discharged.

When the airtight lid 64 is opened while the expansion/contraction chamber 5 is expanding,
The auxiliary chamber 6 communicates with the outside air, the pressure in the storage chamber 13 becomes atmospheric pressure, and the discharge of the stored material can be stopped.

The present invention is not limited to the above embodiments,
Various modifications are possible within the scope of the claims for utility model registration.

[Brief explanation of drawings]

Figure 1 is a sectional view of the pot, Figure 2 is a sectional view of the upper part of the pot with the pump handle pressed down, and Figure 3 is a sectional view of the upper part of the pot with the pump handle pressed.
The figure is an enlarged sectional view of the check valve, and FIG. 4 is a sectional view of the airtight lid. DESCRIPTION OF SYMBOLS 1... Pot body, 2... Discharge pipe, 3... Lid body, 4... Pump, 5... Expansion chamber, 6... Auxiliary chamber, 7... First passage, 71... First valve body, 8...
Second passage, 81...second valve body.

Claims (1)

[Claims for Utility Model Registration] A sealing lid 3 is attached to the top opening of the pot body 1 so that it can be opened and closed, and a manual pump 4 is disposed inside the lid 3. In the pot for increasing the pressure in the storage chamber 13 and discharging the contained material from the discharge pipe 2 communicating with the storage chamber 13, the pump 4 is configured by providing an expansion/contraction chamber 5 in a pump case 41 that can be expanded and contracted up and down. , the expansion/contraction chamber 5 and the storage chamber 13 are communicated with each other through a first passage 7, and the first passage 7 allows flow only from the expansion/contraction chamber 5 to the storage chamber 13 due to the increase in pressure in the expansion/contraction chamber 5. The valve body 71 is provided, and the expansion chamber 5
The pump auxiliary chamber 6 formed between the pump auxiliary chamber 6 and the housing chamber 13 are communicated with each other through a second passage 8, and the pump auxiliary chamber 6 is connected to the pump auxiliary chamber 6 by increasing the pressure in the pump auxiliary chamber 6. 6 to containment room 1
A second valve body 81 that allows flow only to the expansion chamber 5 is provided, and a spring 43 is installed in the expansion chamber 5 to bias the chamber in the expansion direction.
and a handle 44 for pushing the expansion/contraction chamber 5 in the compression direction against the spring 43, and the expansion/contraction chamber 5 is provided with a reverse valve 50 that allows external air to flow only into the expansion/contraction chamber 5. A pot characterized in that a hole 51 is provided, and the pump auxiliary chamber 6 is provided with a second hole 61 equipped with a check valve 60 that allows external air to flow only into the auxiliary chamber 6. The downstream sides of each of the first passage 7 and the second passage 8 communicate with the storage chamber 13 through a common passage 70,
The first valve body 71 and the second valve body 81 are common, and the common valve body is disposed in the common passage 70 downstream of the first passage 7 and the second passage 8. Claim for Utility Model Registration The pots described in item 1 of the scope. An auxiliary pipe 63 extending outside the lid body 3 is connected to the pump auxiliary chamber 6, and a manually opened/closed airtight lid 64 is provided at the tip of the pipe. The pot described in Section 2.