JPS6330365Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sealing and ventilation structure for a spout of a pot that prevents the liquid inside the pot from spilling out even if the pot is accidentally tipped over when not in use.

In general, the sealing and ventilation structure of the spout of this type of pot is such that a sealing member is attached to and separated from the opening of the pot body to prevent liquid such as drinking water sealed in the pot from spilling out inadvertently. There is. However, in the conventional pot spout sealing and venting structure, the sealing member only performs two actions: close contact and separation from the opening of the pot body, so the temperature inside the pot decreases when the pot is in a close contact state. In this case, the air pressure inside the pot decreases and an inward suction pressure acts on the sealing member, and as a result, there is a possibility that the separating operation cannot be performed smoothly.

The present invention has been made based on the above-mentioned circumstances, and its purpose is to smoothly separate the sealing member from the opening of the pot body even when suction pressure is applied to the sealing member from the inside of the pot. To provide a sealing and ventilation structure for a spout of a pot, which allows the liquid in the pot to be easily poured out.

In order to achieve the above object, the present invention is characterized by the following structure. In other words, there is a spout body attached to the opening of the pot body, a screw hole formed in the upper wall of the spout body, a screw body screwed into the screw hole, and a screw body provided at one end of the screw body. a knob attached to the other end of the threaded body and a sealing member that approaches and separates from the open end of the pot body, and the sealing member is attached to the threaded body by forming a The engagement hole formed in the sealing member is connected to the small diameter part formed in the small diameter part, with a predetermined gap formed between the outer periphery of the small diameter part and the inner periphery of the engagement hole, and a stepped part formed at the end of the threaded body. The opening peripheral edge of the engagement hole is engaged with the opening in a state of contact and separation.

Hereinafter, the present invention will be explained in detail with reference to embodiments shown in the drawings.

FIG. 1 is a sectional front view showing the sealing and ventilation structure of the spout of the pot in this embodiment. In the figure, reference numeral 1 is the pot body. A spout attachment portion 2 is formed at the periphery of the opening of the pot body 1. Moreover, 3 in the figure is a spout main body. . This spout main body includes a screw hole 4 partially formed on the inner circumferential surface and a spout portion 5 formed protruding from the peripheral wall.
and a screw hole 6 formed in the upper wall. The threaded portion 4 is screwed into the spout attachment portion 2 of the pot body 1.

Moreover, 7 in the figure is a screw body. This threaded body 7 has a threaded portion 8 formed on a part of its outer peripheral surface, and the threaded portion 8 is screwed into the threaded hole 6 of the spout body 3.
A knob 9 is attached to one end of the screw body 7. At the other end of the screw body 7, a small diameter portion 11 is formed with the stepped portion 10 as a boundary. A circumferential protrusion 12 having a semicircular cross section is formed at the tip of the small diameter portion 11 .

Moreover, 13 in the figure is a sealing member. This sealing member 13 is formed into a mortar shape, and an end peripheral edge 14 approaches and separates from the open end of the pot body 1.
Furthermore, an engagement hole 15 is formed in the center of the sealing member 13. A circumferential protrusion 16 having a semicircular cross section is formed on the inner periphery of the engagement hole 15 . The inner diameter of the engagement hole 15 at the apex of the protrusion 16 is larger than the diameter of the small diameter portion 11 of the screw body 7.
1 is smaller than the diameter of the protrusion 12 formed at the tip of the protrusion 12. The opening periphery 17 of the engagement hole 15 is formed flat.

This sealing member 13 is connected to the small diameter portion 1 of the screw body 7.
It is detachably attached to 1. That is, the protrusion 16 formed on the inner periphery of the engagement hole 15 elastically rides over the protrusion 12 formed at the tip of the small diameter portion 11,
The small diameter portion 11 is reached. In this way, a predetermined gap is formed between the protrusion 16 formed on the inner periphery of the engagement hole 15 and the small diameter portion 11, and the protrusion 16 is formed on the small diameter portion 11.
The small diameter portion 11 and the engagement hole 15 are engaged with each other while being freely movable in the axial direction, and the sealing member 13 is attached to the small diameter portion 11 of the screw body 7. The opening periphery 17 of the sealing member 13 and the stepped portion 10 of the screw body 7 that are attached in this manner are in a relationship of coming into contact with and separating from each other.

The sealing and venting structure of the spout of the pot having the above-described structure has the following effects.

First, when the knob 9 is rotated in a predetermined direction to advance the screw body 7 toward the inside of the spout body 3, the second
As shown in the figure, the end peripheral edge 14 of the sealing member 13 is in close contact with the open end of the pot body 1, and the stepped portion 1
0 comes into close contact with the opening periphery 17 of the engagement hole 15 to seal the inside of the pot body 1. In this state, even if the pot is accidentally tipped over, there is no risk of the liquid sealed inside the pot body 1 spilling out.

Assume that in the sealed state shown in FIG. 2, the temperature inside the pot body 1 decreases, and as a result, the air pressure inside the pot body 1 decreases, and an inward suction pressure acts on the sealing member 13. Even in such a state, the present sealing and ventilation structure goes through the operation shown in FIG. 3 and reaches the separation state shown in FIG. 4, so that the separation operation can be performed smoothly. That is, when the knob 9 is rotated in a predetermined direction to advance the screw body 7 toward the outside of the spout body 3, first, only the screw body 7 performs the advancing movement. Therefore, the stepped portion 10 of the screw body 7
is spaced apart from the opening periphery 17 of the engagement hole 15 to form a gap between the screw body 7 and the sealing member 13 that communicates the inside and outside of the pot body 1, as shown in FIG. As a result, the air pressure inside and outside of the pot body 1 becomes equal, and the inward suction pressure acting on the sealing member 13 is removed. That is, the gap acts as a ventilation hole.

When the liquid inside the pot body 1 is poured out in the open state as shown in FIG. 4, the liquid may flow around to the outer surface of the sealing member 13 as indicated by the arrow in the figure. However, in this sealing and ventilation structure, between the open state (FIG. 4) and the sealed state (FIG. 2), the screw body 7 and the sealing member 1 as shown in FIG.
Since there is a state in which a gap is formed between 3 and 3,
In this state, the liquid that has gone around falls into the inside of the pot body 1 through the gap. In this way, the above-mentioned gap also functions as a drainage hole, and therefore, there is a risk that the liquid that has entered the outer surface of the sealing member 13 as described above may remain in this area and may inadvertently spill out from the spout 5. Nor.

In addition, in this sealing and ventilation structure, as described above, the sealing member 13 is detachably attached to the small diameter portion 11 of the screw body 7, so each component can be completely disassembled, and therefore cleaning can be easily and evenly carried out. obtain.

It should be noted that the present invention is not limited to the one embodiment described above, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

As is clear from the above description, according to the present invention, when opening and closing the sealing member, a gap is formed between the screw body and the sealing member to communicate the inside and outside of the pot body, so that the pot can be kept in a sealed state. Even when the temperature inside the pot body drops and a suction pressure is applied to the sealing member 13 in the direction inside the pot body, the sealing member can be smoothly separated from the opening of the pot body, and the liquid inside the pot body can be easily drained. It can be poured out.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, and Fig. 1 is a cross-sectional front view showing the sealing and ventilation structure of the spout of the pot, and Figs. 2, 3, and 4 are cross-sectional front views showing the operating state. It is a diagram. 1... Pot body, 2... Spout mounting part, 3...
... Spout body, 4... Threaded part, 5... Spout part,
6...Threaded hole, 7...Threaded body, 8...Threaded part, 9
...Knob, 10...Stepped part, 11...Small diameter part,
12...Protrusion, 13...Sealing member, 14...End periphery, 15...Engagement hole, 16...Protrusion, 17...
...Aperture periphery.

Claims (1)

[Scope of utility model registration request] A spout body attached to the opening of the pot body, a screw hole formed in the upper wall of this spout body, a screw body screwed into this screw hole, and a screw body provided at one end of this screw body. a knob, and a sealing member that is attached to the other end of the threaded body and moves toward and away from the open end of the pot body; The engagement hole formed in the sealing member is formed in the small diameter part, and a predetermined gap is formed between the outer periphery of the small diameter part and the inner periphery of the engagement hole, and the engagement hole is engaged with the stepped part formed at the end of the screw body. A pot characterized by being formed in such a manner that the peripheral edge of the opening of the hole engages with the opening in a state of coming into contact with and separating from it, and the peripheral edge of the end of the sealing member and the opening end of the pot body are formed in a state of contacting and separating. Sealing and ventilation structure of the spout.