CN201312733Y - Pressure limiting valve for electric pressure cooker - Google Patents

Abstract

The utility model discloses an electric pressure cooker's pressure limiting valve cooperatees with the case that sets up on the pot cover, and it includes the valve body, sets up thimble in the valve body and establishes the valve body shell in the valve body outside, the valve body shell is including the inner chamber and the exocoel of coaxial setting, and the valve body tight fit assembly is in the inner chamber of valve body shell, and the top of valve body shell exocoel is equipped with the air discharge duct, is equipped with the handle of outside extension on the lateral wall of exocoel. The beneficial effects of the utility model reside in that, through set up exocoel and inner chamber with one heart on the valve body shell of connecting the valve body, the valve body clamps at the inner chamber part, and the air discharge duct then sets up at the exocoel part, and the highly compressed steam of high temperature needs to follow the inside exocoel that gets into of valve body of inner chamber earlier, then just can discharge from the air discharge duct at exocoel top, avoids it from the direct discharge valve body outside the valve core blowout, scalds the user.

Description

Pressure limiting valve for electric pressure cooker

technical field

The utility model relates to an accessory of an electric pressure cooker, in particular to an improvement technology of a pressure limiting valve of the electric pressure cooker.

technical background

Electric pressure cookers sold on the domestic and foreign markets are all provided with pressure limiting valves for pressure limiting at present. The pressure limiting valve includes an ordinary pressure limiting valve and a new type of pressure limiting valve with two working states of pressure limiting and exhaust. This new type of pressure limiting valve is the improved structure of the pressure cooker pressure limiting valve disclosed in the application number 03247947.6. It is provided with a handle, and the lower end of the part inserted into the pressure limiting valve of the handle is provided with high gaps arranged in steps. and the low gap, the pressure limiting valve seat is provided with protrusions matching the high gap and the low gap to achieve the purpose of the invention in two working states of pressure limiting and exhaust. However, the exhaust hole of the former pressure limiting valve is arranged on the side of the valve body. When exhaust is required, the pressure limiting valve is manually lifted upwards. The exhaust port of the latter pressure limiting valve is arranged on the valve body and the handle. On the end face, when exhaust is required, just move the handle, when the distance between the handle and the exhaust port is very close. Therefore, when the user needs the pressure-limiting valve to be in the exhaust state, lift or toggle the exhaust valve, the high-temperature and high-pressure gas will directly rush out from the exhaust port. Because it has not been cooled and buffered, it is easy to burn the user.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a new type of pressure limiting valve of the electric pressure cooker, and solve the hidden danger of high temperature and high pressure steam rushing out directly from the exhaust port.

The technical scheme of the pressure limiting valve of the electric pressure cooker of the utility model is: a pressure limiting valve of the electric pressure cooker, which cooperates with the valve core arranged on the pot cover, and it includes a valve body, a thimble arranged in the valve body, and a The valve body shell outside the valve body is characterized in that: the valve body shell includes an inner cavity and an outer cavity arranged coaxially, the valve body is tightly fitted in the inner cavity of the valve body shell, and the top of the outer cavity of the valve body shell is set Exhaust grooves are arranged, and an outwardly extending handle is arranged on the outer wall of the outer chamber.

The exhaust groove is arranged on the top of the valve body shell, outside the area corresponding to the position of the handle.

The periphery of the handle is provided with a convex edge extending downward.

As a further improvement of the utility model, the top of the outer chamber of the valve body shell is provided with a plurality of partitions extending downward, at least some of the sides of the partitions are connected with the inner side walls of the outer chamber, and some of the sides of the partitions It is connected with the outer side wall of the outer chamber, and the two inner partitions are interlaced with each other.

The heights of the partitions are the same or different from those of adjacent partitions.

As a further improvement of the utility model, the pot cover is evenly distributed with a plurality of raised points around the circumference of the valve core, and the bottom of the outer wall of the outer cavity of the valve body shell is provided with gaps that avoid each other with the raised points.

A barrel-shaped protective ring with an inner diameter larger than the outer diameter of the valve shell is provided outside the valve core on the pot cover. The pressure limiting valve is inserted into the protective ring from above the protective ring, and the thimble of the pressure limiting valve corresponds to the valve core.

The upper end surface of the protective ring is provided with a chute for accommodating the extension of the handle of the valve body shell, and the chute has a margin in the width direction for accommodating the angle at which the valve body shell rotates around the valve core.

The beneficial effect of the utility model is that, by concentrically setting the outer cavity and the inner cavity on the valve body shell connected to the valve body, the valve body is clamped in the inner cavity part, and the exhaust groove is arranged in the outer cavity part, and the high-temperature and high-pressure steam needs to be ventilated first. It enters the outer cavity from the inside of the valve body in the inner cavity, and then it can be discharged from the exhaust groove on the top of the outer cavity, so as to prevent it from being ejected from the valve core and directly discharged out of the valve body, which may burn the user. In particular, the utility model is also equipped with staggered partitions in the outer cavity to form a serpentine exhaust channel, so that the high-temperature and high-pressure steam has been fully cooled when passing through the outer cavity of the valve body shell, reducing its temperature. . In addition, by arranging a protective ring outside the valve body shell, it can also reduce the direct escape of high-temperature steam from the outside of the valve body shell, causing harm to users.

Description of drawings

The pressure limiting valve of the practical electric pressure cooker will be further described below in conjunction with the accompanying drawings and specific embodiments.

Accompanying drawing 1 is the sectional view that pressure limiting valve of the present utility model cooperates with valve core;

Accompanying drawing 2 is the bottom view of Fig. 1 valve housing;

Accompanying drawing 3 is the perspective view of the valve housing in Fig. 2;

Accompanying drawing 4 is the bottom view of another embodiment of the valve housing.

Detailed ways

As shown in accompanying drawing 1 to 4, in Fig. 1 of present embodiment, spool 4 is fixed on the pot cover 5 by a pallet 6 and spool 4 by the fastener of its own shoulder and pot cover bottom. A pressure limiting valve is provided above the valve core 4 , and the pressure limiting valve includes a valve body 1 , a thimble 2 and a valve body shell 3 . The thimble 2 is opposite to the valve core 4. The valve body shell 3 includes an inner chamber 31 and an outer chamber 32. The inner chamber 31 and the outer chamber 32 are arranged concentrically and coaxially. The valve body 2 is inserted into the inner chamber 31 and tightly matched with it. An exhaust groove 33 is arranged on the top of the outer chamber 32, and a handle 34 extending outward is arranged on the outer wall of the outer chamber 32, and a convex edge 34a extending downward is arranged on the periphery of the handle 34 to facilitate gripping.

Wherein, the location of the exhaust groove 33 is preferably arranged outside the area corresponding to the handle 34 on the top of the valve body shell 3, that is, away from the handle 34, so as to prevent the steam from scalding the user.

Simultaneously, the top of the outer chamber 32 of the valve body shell 3 is provided with a plurality of partitions 35, 36 extending downwards, the side of a part of the partition 36 is connected with the inner side wall of the outer chamber 32, and the side of a part of the partition 35 It is connected with the outer side wall of the outer chamber 32, and the two types of partitions 35, 36 are interlaced with each other (as shown in FIG. 4 ). Certainly also can only be provided with dividing plate 35 or dividing plate 36 (as shown in accompanying drawing 2), perhaps can also be provided with the dividing plate that both sides are not connected to each other with the inner and outer side walls of outer chamber 32, perhaps can also be provided with The inner and outer walls are concentric partitions, and various partitions can be combined in any way to form a serpentine cooling channel. Also, in order to further improve the cooling effect, the heights of adjacent partitions 35, 36 may be the same or different.

On the upper end surface of the tray 6, there are three protruding points 61 evenly distributed around the circumference of the valve core. At the bottom of the outer wall of the outer cavity 32 of the valve body shell, there is a gap 37 that avoids the above-mentioned protruding points 61. The pressure limiting valve passes through the thimble. 2 is supported on the spool 4 to play the role of pressure limiting.

In addition, a barrel-shaped protective ring 7 with an inner diameter greater than the outer diameter of the valve body shell 3 is arranged outside the valve core 4 on the pot cover 5, and the pressure limiting valve is inserted into the protective ring 7 from above the protective ring 7, so that the thimble 2 of the pressure limiting valve Corresponding to spool 4. The protective ring can be an independent part arranged on the pot cover 5, or can be combined with other parts (such as handles), or directly made on the pot cover 5. Simultaneously, the upper end surface of the protective ring 7 is provided with a chute 71 that accommodates the handle 34 of the valve body shell 3 and stretches out. The set angle is generally related to the angle between the centers of the adjacent protrusions 61 on the tray 6 . Because when the pressure limiting valve rotates, when the gap 37 on the lower end surface of the valve body shell 3 no longer corresponds to the raised point 61, the lower end surface of the valve body shell 3 will be supported on the raised point 61, so that the pressure limiting valve is lifted as a whole, and the thimble 2 After leaving the outlet on the valve core 4, the high-temperature and high-pressure steam is discharged from the outlet of the valve core 4, then descends from the through hole in the middle of the valve body and then enters the outer cavity 32 of the valve body shell 3, and after being cooled by the partitions 35 and 36 , and then discharged from the exhaust groove 33 at the top of the outer cavity 32 . Another part of steam escapes from the gap between the valve body shell 3 and the protective ring 7 .

Of course, the exhaust path in the prior art can also be reserved in the inner cavity of the valve body shell. That is, the valve body 1 communicates with the hole 38 at the top of the inner cavity 31 of the valve body shell 3 , so a small part of steam can also be discharged into the atmosphere from the cover hole 38 . However, the temperature of the steam discharged here will be higher than that of the steam discharged from the exhaust slot 33 .

Claims (7)

1. A pressure-limiting valve of an electric pressure cooker, which cooperates with a valve core arranged on a pot cover, includes a valve body, a thimble arranged in the valve body, and a valve body shell arranged on the outside of the valve body, and is characterized in that: The valve body shell includes an inner cavity and an outer cavity coaxially arranged, the valve body is tightly fitted in the inner cavity of the valve body shell, an exhaust groove is arranged on the top of the outer cavity of the valve body shell, and an exhaust groove is arranged on the outer wall of the outer cavity. There are handles that extend outward. 2 . The pressure limiting valve of the electric pressure cooker according to claim 1 , wherein a convex edge extending downward is provided around the handle. 3 . 3. The pressure limiting valve of electric pressure cooker according to claim 1, characterized in that: the top of the outer chamber of the valve body shell is provided with a plurality of partitions extending downwards, at least a part of the partitions' sides are in contact with the outer The inner side walls of the cavity are connected, and the sides of a part of the partitions are connected with the outer side walls of the outer cavity, and the two inner partitions are interlaced with each other. 4. The pressure limiting valve of the electric pressure cooker according to claim 3, characterized in that: the height of the partition is the same as or different from that of the adjacent partition. 5. The pressure limiting valve of an electric pressure cooker according to any one of claims 1 to 4, characterized in that: the pot cover is evenly distributed with a plurality of bumps around the circumference of the valve core, and the outer cavity of the valve body shell The bottom of the outer wall is provided with a notch that avoids the protrusions from each other. 6. The pressure limiting valve of the electric pressure cooker according to claim 5, characterized in that: a barrel-shaped protective ring with an inner diameter larger than the outer diameter of the valve shell is provided on the outside of the valve core on the cover, and the pressure limiting valve is The upper part of the protective ring is inserted into the protective ring, and the thimble of the pressure limiting valve corresponds to the valve core. 7. The pressure limiting valve of electric pressure cooker according to claim 6, characterized in that: the upper end surface of the protective ring is provided with a chute for accommodating the extension of the handle of the valve body shell, and the chute has a receiving slot in the width direction The valve body shell rotates around the spool to set the margin of the angle.

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