JPS5849703Y2 - stop ring for pressure valve - Google Patents

Description

[Detailed description of the invention] This invention is particularly related to a stop ring for a pressure valve attached to a pressure cooker such as a pressure cooker, and its purpose is to concentrically control the behavior of a weight in the pressure valve. It is to provide a stop ring for a pressure valve.

Next, an embodiment of the present invention will be explained according to the drawings. In the drawing, 1 is a nozzle which is vertically fastened to the lid plate H of the pressure cooker body through a nut 2, and has a roughly cylindrical shape. A throat portion 1a is recessed circumferentially over a predetermined length near the center of the exposed portion formed in the nozzle 1, and a stepped portion 1 is formed at the upper end of the nozzle 1.
b is formed in a protruding manner, and a nozzle hole 1C for communicating the inside and outside of the pressure cooker main body is provided through its axial center, and a valve seat surface 1d is formed in a concave shape on its upper end surface. ing.

Reference numeral 3 denotes a hollow weight with a lid that is removably fitted onto the nozzle 1 in order to open and close the nozzle hole 1C of the nozzle 1 to automatically adjust the pressure inside the pressure cooker body. A locking groove 3a is circumferentially recessed near the lower end of the surface, and a conical shape is formed at the center of gravity so as to close the nozzle hole 1C when it comes into contact with the valve seat surface 1d. pointed end 4a
A needle 4 with a needle 4 is fitted downward, and a knob 5 is attached to the upper end surface of the needle 4. 1 and is supported in a floating manner.

Reference numeral 6 denotes a stop ring that surrounds the throat portion 1a of the nozzle 1 and is suspended horizontally inside the weight 3 in order to prevent the weight 3 from falling off. In this example, in order to allow elastic deformation of the stop ring 6, the stop ring 6 is separated near one apex corner 6a in the minor axis direction to form a cut-off part 7, and It is fitted into the locking groove 3a of the weight 3 via both apex corner portions 6b, 6b in a pivot shape capable of swinging.

When the weight 3 is fitted into the nozzle 1, when the stepped portion 1b of the nozzle 1 is press-fitted into the stop ring 6, the stop ring 6 inscribes the stepped portion 1b and expands elastically.
The throat portion 1a can be loosely fitted by inserting the stepped portion 1b, and when the throat portion 1a is loosely fitted into the stop ring 6, tilting and upward movement of the weight 3 can be prevented within the opening of the stop ring 6. Floating is allowed, and the stop ring 6 comes into contact with the lower edge of the stepped portion 1b, preventing the weight 3 from falling off.

Next, the operation and effects of the embodiment having the above configuration will be explained.

Now, in this example, the stop ring 6 suspended horizontally within the weight 3
is formed into an envy frame shape with a major axis and a minor axis, and
The stop ring 6 is fitted in a locking groove 3a in the weight 3 in a swingable pivot shape via both apex corners 6b in the long diameter direction, and a part of the frame shape can be detached. Because there is
The apex corner 6b in the long diameter direction of the stop ring 6 is engaged with and disengaged from the locking groove 3a of the weight 3, so that the stop ring 6 can be easily attached to and removed from the weight 3, and the elastic behavior of the stop ring 6 allows the weight to be 3 can be easily engaged and disengaged from the nozzle 1 via the stop ring 6.
When the weight 3 is loosely fitted into the throat portion 1a of the nozzle 1 and the weight 3 is engaged with the nozzle 1, it is possible to prevent the weight 3 from falling off.

In particular, in this example, when engaging the weight 3 with the nozzle 1,
Since the stop ring 6 is formed in a frame shape, the periphery of the stepped portion 1b of the nozzle 1 is inscribed in the four sides of the stop ring 6 during press insertion, and the stop ring 6 is guided concentrically with respect to the nozzle 1. The nozzle 1 can be press-fitted into the stop ring 6 smoothly, and when the weight 3 floats, the stop ring 6 circumscribes the throat portion 1a of the nozzle 1 to restrict the floating range of the weight 3 from all sides. , the tip 4a of the needle 4 is directed toward the nozzle hole 1C, and the weight 3
The needle 4 can reliably operate the valve against the valve seat surface 1d in response to the floating or falling of the valve.

In addition, since the stop ring 6 is fitted into the weight 3 in a swingable pivot shape, the stop ring 6 swings when the weight 3 is hopping, thereby promoting the self-aligning effect and the buffering effect on the weight 3. can.

That is, the present invention includes a nozzle protruding from the main body of a pressure cooker, etc., and a covered hollow weight supported in a floating manner on the upper end of the nozzle for opening and closing the nozzle hole of the nozzle. In the pressure valve, a stop ring suspended horizontally within the weight in order to prevent the weight from falling off is formed in the shape of a frame having a long diameter and a short diameter, and a stop ring in a locking groove in the weight. The stop ring is fitted into the stop ring in a pivot shape that can swing through the apex corner in the long diameter direction, and by separating a part of the frame shape, the floating of the weight with respect to the nozzle is made concentric. This is an extremely practical idea as a stop ring for a pressure valve, as it can control the pressure and also allow the weight to be smoothly engaged and disengaged from the nozzle.

In the above embodiment, as shown in FIG. 5, the stop ring 6 is provided with a cut-off portion 7A near the apex corner 6b in the longitudinal direction of the envy frame shape, or as shown in FIG. A separation portion 7B may be provided near the middle portion of the.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along the line X-X in FIG. 1, and FIG. 3 is a sectional view taken along the Y-Y line in FIG. 2. , Figure 4 is a plan view of the stop ring,
FIGS. 5 and 6 are plan views showing other examples of the stop ring. 1... Nozzle, 1C... Nozzle hole, 3
... Weight, 3a ... Locking groove, 6 ...
...stop ring, 6a, 6b...apex corner part.

Claims (1)

[Scope of utility model registration request] A pressure valve comprising a nozzle protruding from a main body of a pressure cooker or the like, and a covered hollow weight supported in a floating manner relative to an upper end of the nozzle for opening and closing a nozzle hole of the nozzle. A stop ring suspended horizontally within the weight to prevent the weight from falling off is formed into a diamond-shaped frame shape with a major axis and a minor axis, and the stop ring is placed in a locking groove within the weight. What is claimed is: 1. A stop ring for a pressure valve, characterized in that the stop ring is fitted in a pivot shape capable of swinging through an apex corner in the long diameter direction of the ring, and further, a part of the diamond-shaped frame is released.