JP2563673Y2 - Hand pot lid - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid for a hand pot, and more particularly to a valve structure thereof.

[0002]

2. Description of the Related Art As shown in FIG. 3, a lid A of a hand pot is generally detachably attached to an inner surface of a shoulder 32 provided at an upper end of a body 31 of the pot. A valve chamber 36 having an open lower surface is formed in a central portion of the lid main body 33, and a liquid passage 34 communicating with the valve chamber 36 is provided in a radial direction, and a tip of the liquid passage 34 is provided on the shoulder 32. Outlet 35
Is facing.

A valve seat 37 is provided on the lower surface of the valve chamber 36, and a valve rod 39 of a valve body 38 penetrates the upper wall of the valve chamber 36 so as to be vertically movable. A packing 41 is mounted on the outer peripheral edge of the valve body 38.

A spring receiving member 42 is provided at the upper end of the valve stem 39, and a coil spring 44 is interposed between the spring receiving member 42 and the lid main body 33, thereby urging the valve body 38 upward. The packing 41 is always pressed against the valve seat 37. A valve opening / closing device 45 having a built-in push / push function is provided at the upper end of the handle 40 and the shoulder 32, and the front end of the mechanism shaft 46 faces the rear end of the cam shaft 47. Is slid horizontally by the mechanism shaft 46. The inclined cam surface 4 in the middle of the cam shaft 47
The upper end of the valve rod 39 faces the inclined cam surface 43. A coil spring 48 for urging the cam shaft 47 in the backward direction is attached to the tip of the cam shaft 47. Others
In the figure, reference numeral 49 denotes a lid cover, and 50 denotes a push button.

In the above pot, the push button 5
0, the mechanism shaft 46 of the valve opening / closing device 45 pushes the cam shaft 47 to move forward, so that the inclined cam surface 43
9, the valve body 38 is lowered against the spring force of the coil spring 44, and the packing 41 is moved to the valve seat 37.
, And the liquid passage 34 is opened. Push button 5
When 0 is pressed again, the mechanism shaft 46 retreats next, so that the cam shaft 47 retreats by the spring force of the coil spring 48, and at the same time, the valve body 38 also rises by the spring force of the coil spring 44, and the packing 41 The liquid passage 34 is closed by pressing against the seat 37.

[0006]

In the above-described hand pot lid, the inclined cam surface 43 of the cam shaft 47 is provided with the valve stem 39.
Since the cam shaft 47 faces the upper end of the camshaft 47, a rising portion 51 from the mechanism shaft 46 to the upper end of the valve stem 39 is required, so that the camshaft 47 becomes larger and the height of the lid is reduced by a certain amount or more. There was also a problem that it was not possible. Then, this invention makes it a subject to solve the said problem.

[0007]

In order to solve the above-mentioned problems, the present invention provides a liquid passage communicating with a discharge port of a hand pot in a lid body, and a valve body for opening and closing the liquid passage is vertically movable. And a valve opening / closing device, and an elastic member for closing the liquid passage by urging the valve body upward, and attaching an inner lid to a lower surface of the lid body. And the elastic member is interposed between the valve body and the inner lid.

[0008]

In the above-mentioned hand pot lid, the valve body is always urged upward by the elastic member to close the liquid passage. However, when the valve opening / closing device is operated to push down the valve body to open the liquid passage,
The elastic member is compressed. When the valve opening / closing device is operated again to release the force for pushing down the valve body, the valve body is urged by the elastic member and again closes the liquid passage.

[0009]

1 and 2 show an embodiment applied to an electric pot. The lid A is detachably screwed to an inner diameter surface of a shoulder 2 provided at the upper end of the pot body 1.
A valve chamber 6 whose lower surface is open is formed in the lid body 3, and a liquid passage 4 communicating with the inside of the valve chamber 6 is formed. The liquid passage 4 is open to the outer peripheral surface of the lid body 3, and the open end faces the discharge port 5 provided in the shoulder 2.

A valve seat 7 is provided on the lower surface of the valve chamber 6, a boss 8 ′ of the valve body 8 is inserted into a guide 6 ′ provided in the valve chamber 6, and a valve rod 9 is mounted on the valve chamber 6. It penetrates the wall up and down freely. A packing 11 is attached to the outer peripheral edge of the valve body 8, and the packing 11 is in close contact with the valve seat 7.

The upper half of the valve stem 9 is bifurcated (FIG. 2).
), And the portion is inserted between a pair of guide pieces 10 provided on the upper part of the valve chamber 6. Further, a cam shaft 12 is slidably inserted in the groove 9 'of the valve stem 9 in a horizontal direction so that the inclined cam surface 13 provided on the cam shaft 12 faces a projection 13' at the lower end of the groove 9 '. Contact. Further, a valve opening / closing device 15 having a built-in push / push mechanism is provided at the upper end of the handle 14 and the shoulder 2, and the front end of the mechanism shaft 16 faces the rear end of the cam shaft 12. The protrusion 13 ′ protrudes from the upper wall of the valve chamber 6 substantially by the operation amount of the valve element 8.

A coil spring 17 for biasing the camshaft 12 in the backward direction (valve closing direction) is mounted on the tip of the camshaft 12. A coil spring 19 is also interposed between the recess 23 at the lower end of the valve stem 9 and the inner lid 20.

The recess 23 on the lower surface of the valve stem 9 utilizes a so-called flesh-thickness provided for preventing sinking during molding. By selecting the coil spring 19 so as to match the inner diameter of the recess 23, the recess 23 can be effectively used as a spring receiver. The coil spring 19 presses the packing 11 of the valve body 8 against the valve seat 7 to close the liquid passage 4. In addition, reference numeral 24 in the figure denotes a band heater.

When hot water is supplied, when the push button 22 is pushed in, the camshaft 12 advances through the mechanism shaft 16, the valve body 8 is pushed down by the cam surface 13, and the liquid passage 4 is compressed while the coil spring 19 is compressed. Release.

When the push button 22 is depressed again, the mechanism shaft 16 and the cam shaft 12 retreat, so that the valve body 8 is pushed up by the spring force of the coil spring 19, and the packing 11 is pressed again by the valve seat 7, The liquid passage 4 is closed.

In the above embodiment, the push-button 22 of the valve opening / closing device 15 is pushed horizontally to open and close the valve body 8.
And the valve body 8 may be opened and closed by pushing a push button provided on the lid cover 21 downward. Further, the valve opening / closing device 15 is not limited to a push mechanism, and may be a simple push button type.

In the above-described embodiment, the valve stem 9 has a shape in which the upper half is split into two forks. However, the valve stem 9 only needs to be as high as the projection 13 '. And the guide piece 10 for guiding that part can be omitted. By doing so, the height of the lid cover 21 can be further reduced.

[0018]

As described above, in the lid of the hand pot according to the present invention, the coil spring for urging the valve body upward is interposed between the valve body and the inner lid. There is no coil spring in the part. For this reason, the height of the inclined cam surface portion of the camshaft does not greatly differ from the height of the mechanism shaft of the valve opening / closing device, so that the camshaft can be downsized.

Further, since a portion protruding upward by the camshaft is reduced, the height of the lid cover, that is, the height of the entire pot can be reduced. Further, since the inner lid is conventionally provided on the lid of the hand pot and is used as a spring receiver, the number of parts is not increased, and the spring receiving member conventionally provided on the valve stem can be omitted. There are advantages too.

[Brief description of the drawings]

FIG. 1 is a partially omitted cross-sectional view of an embodiment.

FIG. 2 is a partially cutaway exploded perspective view of the same.

FIG. 3 is a partially omitted sectional view of a conventional example.

[Explanation of symbols]

 A Lid 1 Body 2 Shoulder 3 Lid Body 4 Liquid Passage 5 Discharge Port 6 Valve Chamber 6 ′ Guide 7 Valve Seat 8 Valve 8 ′ Boss 9 Valve Rod 9 ′ Crack Groove 10 Guide Piece 11 Packing 12 Camshaft 13 Incline Cam surface 13 'Projection 14 Handle 15 Valve opening / closing device 16 Mechanical shaft 17 Coil spring 19 Coil spring 20 Inner lid 21 Lid cover 22 Push button 23 Recess 24 Band heater

Claims (1)

(57) [Scope of request for utility model registration] 1. A liquid passage communicating with a discharge port of a hand pot is provided in a lid body, a valve body for opening and closing the liquid passage is vertically movably mounted, and a valve opening / closing device is provided. An elastic member for energizing the liquid passage is provided, and the elastic member is interposed between the valve body and the inner lid in the lid of the hand pot in which the inner lid is attached to the lower surface of the lid main body. A lid for a hand pot, characterized in that: