CN201263614Y

CN201263614Y - Pressure control valve for pressure cooker

Info

Publication number: CN201263614Y
Application number: CNU2008202015459U
Authority: CN
Inventors: 蔡振耀
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-07
Filing date: 2008-10-07
Publication date: 2009-07-01
Anticipated expiration: 2018-10-07

Abstract

The utility model discloses a pressure limiting valve of a pressure cooker, comprising a pressure limiting valve bonnet, a pressure limiting valve body and a pressure limiting valve core which are nested and connected together, wherein the pressure limiting valve body is provided with an inner hole with a downward opening, and the upper part of the inner hole is provided with a radial exhaust hole communicated with the outside; the pressure limiting valve body also comprises an exhaust pipe, the upper part of the exhaust pipe is mounted in the inner hole of the valve body, the outer wall of the exhaust pipe is in clearance fit with the wall of the inner hole of the valve body, the lower part of the exhaust pipe is fixedly connected to an upper handle and a cooker cover by a fastening piece, the exhaust pipe has an axial through hole communicated with the inside of the cooker; and the pressure limiting valve core is tightly pressed on an opening at the upper end of the axial through hole. When overpressure occurs during the use of the pressure limiting valve, air in the cooker jacks up the valve core upwards through the through hole of the exhaust pipe and then is rapidly exhausted. After the air is exhausted, the valve core can smoothly and vertically fall off and tightly presses the opening at the upper end of the exhaust pipe, thereby the problem that the original exhaust valve is inclined after being jacked up to result in being difficult to seal a valve port. The utility model is simple for assembly and convenient to operate and is smooth and safe.

Description

Limiting valve of pressure cooker

Technical field

The utility model relates to kitchen utensils, especially the technical field of safety devices of pressure cooker.

Background technology

Existing pressure cooker has the saving energy, saves time, and therefore the soft well-done food that can boil at short notice extensively be subjected to consumer's welcome, especially is subjected to working clan's welcome.But there is safety problem easily in pressure cooker, such as blast appears under high pressure conditions or when boiling the pot inner high voltage allow the various accidents of food ejection many consumers hang back.Therefore, the safety problem of solution pressure cooker is primary problem.In addition, in design, also to consider the convenience of operation.

The utility model content

The utility model aims to provide a kind of limiting valve of pressure cooker, and easy to operate practicality is reliable, can be automatically that pot inner pressure is constant in safe pressure, and can satisfy the boil setting of required heat energy of food.

In order to reach the foregoing invention purpose, the utility model has adopted following technical scheme: a kind of limiting valve of pressure cooker, the pressure limiting bonnet, pressure limiting valve body, the pressure limiting spool that comprise nested connection, described pressure limiting valve body offers an endoporus that Open Side Down, endoporus top offers the rod radial air vent that is in communication with the outside, also comprise a blast pipe, install in valve body inner bore on its top, and pipe outer wall and valve body inner bore wall matched in clearance, its underpart is fixedly connected on upper handle and pot cover by securing member, blast pipe has an axial through bore, and is communicated with in the pot; Described pressure limiting spool is pressed in the axial through bore upper end open.

Described pressure limiting bonnet has an outwardly directed handle, grips to make things convenient for the user.

Described blast pipe top is tapered cylinder, is beneficial to gas uniform and stable ground and discharges.

Described pressure limiting spool bottom be a back taper, when being beneficial to discharge of gas ground and spool and landing to the sealing of blast pipe air flue.

Described valve body inner bore wall bottom offers an annular groove, is installed on a jump ring in the groove, to block blast pipe top, makes pressure limiting valve be difficult for deviating from when work.

Consider the landing of steam condensate (SC) and avoid the obstruction of the food of eruption in the pot to valve, described valve also is provided with a ponding circle, and an Anti-stop cover, fixedlys connected with described blast pipe by spiro connecting piece.

The utility model has adopted above technical scheme, can be when superpressure, and gas upwards backs down spool through the perforation of blast pipe in the pot, makes gas discharging rapidly in the steam vent of valve body perisporium.And after exhaust, spool again can be steadily, vertical drop and compress the blast pipe upper end open, the problem of having avoided air bleeding valve in the past to be sealed valve port by jack-up rear-inclined difficulty.Also very simple and convenient at fit on, bonnet more is provided with the handle of an outwardly directed shape such as beak, is convenient to the operator and grips.The utility model is easy to operate, steadily, has overcome the shortcoming of old money pressure limiting valve, has improved the security that product uses, and is a kind of novel pressure limiting valve.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is a vertical view of the present utility model.

The specific embodiment

Valve mechanism of the present utility model as shown in Figure 1 and Figure 2 is made up of pressure limiting bonnet 1, pressure limiting valve body 2, pressure limiting spool 3, blast pipe 4, jump ring 5, ponding circle 6, leak-proof gasket 7, nut 8, fastening sheet 9 and Anti-stop cover 10.Pressure limiting bonnet 1 is fixedlyed connected by the pressure limiting spool is chimeric with pressure limiting valve body 2, valve body offers an endoporus that Open Side Down 22, is provided with four rod radial air vents 21 around the valve body, and endoporus 22 is in communication with the outside, exhaust is steady during work, improved the security that product uses.

Offer annular groove under pressure limiting valve body 2 inner hole walls, be installed on jump ring 5 in the annular groove.The top 41 of blast pipe 4 is the taper cylinder, passes jump ring 5, is arranged in the endoporus 22.41 outer tube wall and endoporus 22 are matched in clearance, can guarantee not tilt after pressure limiting valve body 2 is by steam jack-up, guarantee that pressure limiting spool 3 resets easily, make the pressure limiting valve can all the time can operate as normal.Blast pipe 4 offers an axial through bore 42.Pressure limiting spool 3 bottoms are inverted cone shape, are pressed in axial through bore 42 upper end open, with the sealed valve gas channel.Steam vent 21 is close to the conjugation position of spool 3 and axial through bore 42, gas purging when making things convenient for spool by jack-up.

Blast pipe 4 lower step and Anti-stop cover 10 are fixed on pot cover 12 and the upper handle 11 with Anti-stop cover 10 jointly by nut 8 and leak-proof gasket 7, fastening sheet 9.

When work, behind the steam jack-up pressure limiting spool 3 in the blast pipe 4, carry out exhaust, reach the pressure limiting effect.

Pressure limiting bonnet 1 has an outwards flat shape of stretching such as the handle of beak, is convenient to user's operation.

Claims

1, a kind of limiting valve of pressure cooker, the pressure limiting bonnet, pressure limiting valve body, the pressure limiting spool that comprise nested connection, described pressure limiting valve body offers an endoporus that Open Side Down, endoporus top offers the rod radial air vent that is in communication with the outside, and it is characterized in that: also comprise a blast pipe, install in valve body inner bore on its top, and pipe outer wall and valve body inner bore wall matched in clearance, its underpart is fixedly connected on upper handle and pot cover by securing member, and blast pipe has an axial through bore, and is communicated with in the pot; Described pressure limiting spool is pressed in the axial through bore upper end open, is being communicated with, is being blocked between the two states and switch by the air-flow in the self problem control pot.

2, limiting valve of pressure cooker according to claim 1 is characterized in that: described pressure limiting bonnet has an outwardly directed handle.

3, limiting valve of pressure cooker according to claim 1 is characterized in that: described blast pipe top is tapered cylinder.

4, limiting valve of pressure cooker according to claim 1 is characterized in that: described pressure limiting spool bottom is back taper.

5, limiting valve of pressure cooker according to claim 1 is characterized in that: described valve body inner bore wall bottom offers an annular groove, is installed on a jump ring in the groove.

6, limiting valve of pressure cooker according to claim 1 is characterized in that: also comprise a ponding circle, and an Anti-stop cover, fixedly connected with described blast pipe.