CN2669749Y

CN2669749Y - Safey pressure cooker

Info

Publication number: CN2669749Y
Application number: CNU2003201178598U
Authority: CN
Inventors: 刘建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-10
Filing date: 2003-11-10
Publication date: 2005-01-12
Anticipated expiration: 2013-11-10

Abstract

The utility model relates to the technical field of the pressure cooker, in particular to a pressure cooker without taking down a pressure limited valve when pressure releasing, comprising a pressure cooker body, a cooker cover, a handle, an exhaust pipe arranged on the cooker cover and a pressure limited valve matched with the exhaust pipe; a hollow circular outer cover is provided out of the exhaust pipe, and the pressure limited valve is matched with the outer cover; a shifting block is fixed to the upper end of the pressure limited valve. When pushing the shifting block to turn the pressure limited valve, the exhaust pipe can be open or closed. The beneficial effects of the utility model lie in that when the exhaust air releasing pressure, and the pressure limited valve is only to turn without taking down from the exhaust pipe; thus the existing pressure cooker is prevented from splashing of high temperature high-pressure gas in the cooker and hurting people because of taking out the pressure limited valve. The utility model has high safety and simpler structure.

Description

A kind of safe pressure cooker

Technical field

The utility model belongs to the pressure cooker field, relates to a kind of follow-on safe pressure cooker specifically.

Background technology

Existing pressure cooker is equipped with the pressure limiting valve that is used with blast pipe on pot cover, its function one is can the discharge section gases at high pressure when pressure cooker surpasses limit value, to reduce an excessive pressure in the pot, prevents that pressure cooker from occurring breaking or explosion phenomenon; The 2nd, be used for quick exhaust release, to open pot cover.But generally want user oneself to take off pressure limiting valve during fast pressure relief from blast pipe, because the pressure cooker internal pressure is huge, compares danger like this, and is careless slightly, high temperature and high pressure gas in the pressure cooker is straight suddenly easily to be sprayed or laterally sprays from blast pipe, thereby the user is hindered in spray.And pressure limiting valve takes off the back and places conveniently, loses easily, thereby causes various inconvenience.

Summary of the invention

The purpose of this utility model is to provide a kind of follow-on safe pressure cooker, and this pressure cooker is safe in utilization, does not need to take away pressure limiting valve during the release exhaust, thereby is not easy to hurt sb.'s feelings.

For achieving the above object, the technical solution adopted in the utility model is: pressure cooker main body, pot cover, handle, the pressure limiting valve that is located at the blast pipe on the pot cover and cooperates with blast pipe; Described blast pipe has the circular outer cover of a hollow outward, and described pressure limiting valve then covers on blast pipe and is enclosed within the circular outer cover.

Above-mentioned outer cover is for directly being opened in the hole on the handle.

Be provided with some gag lever posts below the inner headed face of outer cover, pressure limiting valve then tightly is with the shell that one deck cooperates with outer cover, and the face of cylinder of described shell lower end is provided with the helix that also cooperates with it with the gag lever post similar number.

The upper end of pressure limiting valve is fixed with a pulling block, when pressure limiting valve is rotated, can close or open blast pipe.

Except that the above-mentioned mode of mentioning, pressure limiting valve and outer cover can also be with threaded engagement.

The beneficial effects of the utility model are: during the exhaust release, it does not need pressure limiting valve is taken off from blast pipe, get final product and only need rotate pressure limiting valve, thereby avoided the phenomenon that high temperature and high pressure gas ejection is hurted sb.'s feelings in the pot that original pressure cooker often occurs when taking off pressure limiting valve, its structure is comparatively simple, and is easy to use, safe.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is the perspective exploded view of a preferred embodiment of pressure limiting valve in the utility model;

Fig. 2 is one of the cutaway view of a preferred embodiment of pressure limiting valve (the pressure limiting spool is blocked blast pipe);

Fig. 3 is one of the cutaway view of a preferred embodiment of pressure limiting valve (the pressure limiting spool unclamps blast pipe).

The specific embodiment

The following stated is a preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.

See that the utility model includes shown in the accompanying drawing 1～3:

One pressure cooker main body (internal structure of pressure cooker main body is familiar with by the public, does not repeat them here);

One pot cover 20 with handles, offer a circular port 40 on the handle of pot cover 20, the blast pipe 21 of pressure cooker is arranged in the circular port 40 (outer cover), its lower end is a thread segment 211, and insert on the lower surface of pot cover, blast pipe 21 is fixed in the circular port 40 by thread segment 211 nut engaged 212 with its lower end; The inner headed face of circular port 40 is provided with some cannelures 42, and a side of each cannelure 42 below is provided with a gag lever post 41;

One is the pressure limiting valve 30 of hollow cylindrical, tightly be with the shell 60 that one deck cooperates with outer cover 40 outside the pressure limiting valve 30, shell 60 upper ends are a boss 601, one side of this boss 601 is provided with a shifting block 602, offer several air-vents 603 on the boss 601, the center position in boss 601 lower surfaces is fixed with a cone shape spool 50; The external cylindrical surface of shell 60 lower ends is provided with some helixes 61 that cooperate with push rod 41, and the height of helix 61 is identical with gag lever post 41, and when rotating pressure limiting valve 30, under the effect of gag lever post 41, spool 50 can rise or descend with pressure limiting valve 30.Also be provided with the limited post 63 that cannelure 42 some and in the outer cover 40 cooperates on the periphery of shell (60), with the rotational angle of restriction pressure limiting valve 30.

During use, at first pressure limiting valve 30 is put in the outer cover 40, and rotated pressure limiting valve 30 by shifting block 602, make pressure limiting valve 30 be inserted in fully in the outer cover 40, at this moment, the upper end of the gag lever post 41 in the outer cover 40 withstands on the highest position of helix 61 on the shell 60; Spool 50 is then blocked the outlet of blast pipe 21 fully; When needs exhaust release, only need counter-rotation pressure limiting valve 30, then the gag lever post 41 in the outer cover 40 does relative motion with the helix 61 of shell 60 lower ends, with pressure limiting valve 30 jack-up, the shutoff that spool 50 is removed the outlet of blast pipe 21, gas in the pot can be overflowed in blast pipe 21, and outside the 603 discharge pressure limiting valves 30 of the air-vent on being opened in boss 601, thereby reach the purpose of pressure cooker being carried out release.Very easy to use, in addition, the utility model has only increased several parts, very simple of structure.

Certainly, adopt between the pressure limiting valve of in the foregoing description, mentioning 30 and the outer cover 40 gag lever post 41 and the mode that helix 61 cooperates, pressure limiting valve 30 and outer cover 40 also can adopt the mode of threaded engagement, can reach equally when rotating pressure limiting valve 30, spool 50 can rise or descend with pressure limiting valve 30, thus the purpose of blocking or unclamping blast pipe 21.

Claims

1, a kind of safe pressure cooker includes: pressure cooker main body, pot cover (20), handle, the pressure limiting valve (30) that is located at the blast pipe (21) on the pot cover (20) and cooperates with blast pipe (21); It is characterized in that: the outer circular outer cover (40) that a hollow is arranged of described blast pipe (21), described pressure limiting valve (30) then cover at blast pipe (21) to be gone up and is enclosed within the outer cover (40).

2, safe pressure cooker according to claim 1 is characterized in that: described outer cover (40) is for directly being opened in the hole on the handle.

3, safe pressure cooker according to claim 2, it is characterized in that: the inner headed face below at outer cover (40) forms some gag lever posts (41), pressure limiting valve (30) then tightly is with the shell (60) that one deck cooperates with outer cover (40), forms the helix (61) that also cooperates with it with gag lever post (41) similar number on the face of cylinder of described shell (60) lower end.

4, safe pressure cooker according to claim 3, it is characterized in that: the upper end of pressure limiting valve is fixed with a pulling block, and offer air-vent (603), when pressure limiting valve (30) is rotated, can close or open blast pipe (31), gases at high pressure overflow outside the pot from air-vent (603) by blast pipe (31) in the pot.