JPS6234501Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a pot used for boiling water and keeping the water warm.

[Technical background of the invention and its problems] This type of pot is equipped with a cylindrical tank with a bottom. The tank boils water and keeps the water warm, and if necessary, the hot water can be pumped through an air pump mechanism, etc. It is now possible to pour it out. A tank lid is attached to the top opening of the tank so that it can be opened and closed, and the tank lid is opened when refilling the tank with water or hot water.The conventional mounting structure is shown in Figure 1A. , a is the tank, b is the tank lid body,
A packing c is provided on the outer periphery of the tank lid b, and the packing c maintains the airtightness within the tank a.

However, since the packing c is constantly exposed to the high-temperature steam filling the tank a, it often deteriorates within a relatively short period of time, reducing the airtightness within the tank. Furthermore, since this packing c is simply fitted onto the outer periphery of the tank lid b, when the tank lid b is opened from the upper end opening of the tank a, as shown in FIG.
If the tank lid body b is accidentally separated from the outer periphery of the tank lid b, or as shown in FIG.
There was a problem in that the lower end edge of the packing c caught on the opening edge of the tank a and rolled up, making it difficult to close the tank lid b in its normal state.

[Purpose of the invention] This invention was made with attention to these points, and its purpose is to protect the packing from steam in the tank, and to
To provide a pot whose packing is prevented from being inadvertently detached from a tank lid body or rolled up.

[Summary of the invention] The invention consists of a body that is inserted into the tank, a collar that extends outward from the top of the body and faces the top end of the tank, and a flange that protrudes from the bottom of the body and is attached to the tank. A tank lid body having a protrusion facing the inner surface is characterized in that packing is arranged in a portion extending from the outer circumferential surface of the body above the protrusion to the lower surface of the flange.

[Embodiment of the present invention] An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. 1 in the figure is a cylindrical exterior case, and a leg ring 2 is attached to the lower end opening of this case 1.
However, a support ring 3 is attached to each of the upper end openings. A cylindrical tank 4 with a bottom is housed inside the exterior case 1, and this tank 4 has a flange 5 at the upper opening edge, and this flange 5 connects to a support step 6 formed on the inner peripheral edge of the support ring 3. Collision occurs via packing 7. There is a mounting piece 8 on the outer bottom of the tank 4.
is fixed by welding or the like, and a bottom cover 9 is provided at the inner peripheral opening of the leg ring 2, and a screw 10 is screwed from the bottom cover 9 to the mounting piece 8.
The tank 4 is fixed by tightening.

A tank lid 12 formed in a dish shape is attached to the upper opening of the tank 4 so as to be openable and closable. This tank lid body 12 includes a cylindrical body 13 that is inserted inside the opening of the tank 4, a flange 14 that extends outward from the upper edge of the body 13, and faces the flange 5 of the tank 4. It integrally has a protrusion 15 that protrudes from the lower end peripheral edge of the body part 13 toward its outer circumferential side and faces the inner circumferential surface of the tank 4 . An annular packing 16 made of an elastic material is attached to the outer periphery of the tank lid 12. This packing 16 has an L-shaped cross section and is arranged in a portion extending from the outer peripheral surface of the body 13 above the protrusion 15 to the lower surface of the flange 14,
A portion disposed on the lower surface of the collar portion 14 elastically abuts against the flange 5 of the tank 4, and this abutment maintains the airtightness within the tank 4.

A knob 17 is attached to the center of the inner bottom of the tank lid body 12 with a screw 17a, and a valve chamber 18 is formed in this knob 17, and a non-return check is installed in the valve chamber 18 to prevent hot water from leaking when the pot falls over. A valve 19 is housed. An air inlet 20a is formed on the upper surface of the valve chamber 18, and a plurality of air outlet holes 20b are formed on the lower surface of the valve chamber 18, and a flat ring-shaped packing 27 is attached to the air inlet 20a.

An inverted bowl-shaped upper lid 21 is rotatably provided on the upper surface of the support ring 3 via a pin 21a.
1 has a recess 22 formed at its top, and a substrate 23 attached to its lower opening. And this top lid 2
Bellows 24 that constitutes an air pump mechanism within 1.
is stored. This bellows 24 has a support plate 25 at its lower end, and an outflow pipe 26 is integrally formed in the center of this support plate 25 and slightly protrudes toward the lower surface side. 27 and is airtightly crimped around the upper surface of the holder 27. An opening 30 is formed in the center of the upper surface of the bellows 24, and a bellows valve 31 is slidably inserted into this opening 30. A spring 32 is provided between this bellows valve 31 and the support plate 25, and this spring 32 elastically urges the bellows valve 31 upward. A locking claw 33 is integrally formed at the lower end of the bellows valve 31.
is engaged with the lower edge of the opening 30, and this engagement prevents the bellows valve 31 from coming off, and the entire bellows 24 is elastically pushed upward by the spring 32, integrally with the bellows valve 31. is energized by A tapered valve seat 34 is formed at the inner peripheral edge of the upper end of the opening 30, and a packing 35 is provided on the bellows valve 31 to face the valve seat 34. Bellows 2
4 is normally communicated with the atmosphere through a cutout window 37 on the circumferential surface of the bellows valve 31, and when the bellows valve 31 is lowered, the packing 35 is connected to the valve seat 34.
When the opening 30 collides with the opening 30, the opening 30 is sealed and communication with the atmosphere is cut off. A reinforcing plate 36 is provided on the upper surface of the bellows 24, and the reinforcing plate 36 is formed to have approximately the same external dimensions as the bellows 24 or larger, and is fitted into the outer peripheral portion of the opening 30. and is integrally attached to the bellows 24.

A push body 40 is housed in the recess 22 of the upper lid 21 so as to be movable up and down, and a press cylinder 41 is slidably inserted upward from the center of the bottom of the recess 22, and the upper end of this press cylinder 41 is screwed. Push body 40 via 42
is connected to. The pressing cylinder 41 integrally has a flange 43 at its lower end, and this flange 43 abuts against the upper surface of the bellows valve 31, and a guide cylinder 44 integrally protrudes from the center of the upper surface of the bellows valve 31. 44 is slidably fitted into the inner periphery of the press cylinder 41.

An outflow pipe 50 is attached to one side of the bottom of the tank 4 by crimping or the like, and the upper end of this outflow pipe 50 projects slightly above the internal surface of the tank 4. The support ring 3 has a guide path 5 that is approximately in the shape of an inverted U.
1 is formed, and a check valve 5 is provided at one end of this guide path 51.
A conduction pipe 53 is connected via 2. Joints 54 and 55 made of rubber, for example, are attached to the lower end of the conduit pipe 53 and the lower end of the outflow pipe 50, respectively. Both the joints 54 and 55 are connected to each other via a connecting tube 56, and a protrusion 57 that continues along the circumferential direction is integrally formed at the intermediate portion of the outer periphery of the connecting tube 56. An outflow pipe 58 is formed at the other end of the guide path 51, and a lead-out pipe 59 is fitted on the outer periphery of the outflow pipe 58. It serves as an outlet 60. A spouting pipe 64 overlaps the outer periphery of the outlet pipe 59, and this spouting pipe 64 is supported via a decorative plate 65 attached to the front surface of the exterior case 1 so as to be able to move up and down. The outer periphery of the spouting tube 64 is covered with a cover 67 that is integrally connected to the spouting tube 64 via a screw 66, and a spout 68 at the tip of the spouting tube 64 protrudes from the lower end surface of the cover 67. .

A heater 69 is wound around the outer peripheral surface of the lower end of the tank 4, and the heater 69 boils water in the tank 4, and the temperature of the water is controlled by a thermostat 70.
It is designed to be held constant through . Also, 71 is a plug receiver, 72 is a handle, and 73 is an upper lid 2.
This is the first lock mechanism.

Next, the effect will be explained. When the pushing body 40 is pressed, the pressing cylinder 4 is integrally moved with this pushing body 40.
1 and bellows valve 31 are lowered. As the bellows valve 31 descends, the packing 35 abuts against the seat 34, and the opening 30 of the bellows 24 is sealed.
The compressed air flows into the tank 24 through the air inlet 20a, the valve chamber 18, the air outlet holes 20b, and so on. This inflow pressurizes the hot water in tank 4,
This pressurization causes the hot water to flow from the outflow pipe 50 to the lead-out pipe 5.
3 and is pushed up through the outlet pipe 59.
The liquid is drawn out from the outlet 60 through the extraction pipe 64, and is then poured out from the outlet 68 through the extraction pipe 64.

When the pressure of the push body 40 is released, the spring 3
2, the bellows valve 31 rises and the packing 35 separates from the seat 34. In response, air flows into the bellows 24 from the outside through the opening 30, and with this inflow, the bellows 24 becomes compressed. At the same time, the pushing body 4 is restored to the extended state from
0, the pressing cylinder 41 and the bellows valve 31 return to their original positions. By repeating such operations, the hot water in the tank 4 is sequentially poured out.

By the way, the tank 4 is filled with steam,
A protrusion 15 is formed on the lower edge of the tank lid 12, and this protrusion 15 faces the inner circumferential surface of the tank 4. Therefore, the packing 16 disposed above the protrusion 15 is attached to the protrusion. 15 from the interior of the tank 4, so that the steam from the tank 4 hardly ever comes into contact with the packing 16. Therefore, deterioration of the packing 16 due to steam is prevented, and the airtightness within the tank 4 is reliably maintained for a long period of time. In addition, since the movement of the packing 16 is restricted by the protrusion 15 and the collar 14, it cannot be accidentally detached from the tank cover 12 when the tank cover 12 is opened, as in the conventional case. Never. Furthermore, a protrusion 1 is provided on the lower end side of the packing 16.
5, when closing the upper end opening of the tank 4 with the tank lid body 12, packing 1 is required as in the conventional case.
The lower edge of the tank lid 1 does not get caught on the opening edge of the tank 4 and rolls up.
2, the opening of the tank 4 can always be smoothly closed in a normal state.

[Effects of the invention] As explained above, according to the invention, the packing on the outer periphery of the tank lid can be protected from steam in the tank and its deterioration can be prevented over a long period of time, and the packing can be removed from the tank lid. This has the effect of reliably preventing problems such as unintentional detachment or rolling up.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the prior art, FIG. 2 is a sectional view showing an embodiment of the present invention, and FIG. 3 is an enlarged sectional view of the main part thereof. 4...tank, 12...tank lid body, 13...
Body part, 14...Brim part, 15...Protrusion part, 16...Packing.

Claims (1)

[Scope of utility model registration request] The tank includes a cylindrical tank with a bottom, a tank lid attached to the upper opening of the tank so as to be openable and closable, and packing provided on the outer periphery of the tank lid. It has a body to be inserted, a collar extending outward from the upper part of the body and facing the upper end surface of the tank, and a protrusion protruding from the lower part of the body and facing the inner surface of the tank, and the above-mentioned A pot characterized in that a packing is arranged in a portion extending from the outer peripheral surface of the body above the protrusion to the lower surface of the collar.