CN2248512Y

CN2248512Y - Float obstructing type safety device for opening or closing cover of pressure cooker

Info

Publication number: CN2248512Y
Application number: CN 96205978
Authority: CN
Inventors: 卢祖良
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-06
Filing date: 1996-03-06
Publication date: 1997-03-05
Anticipated expiration: 2006-03-06

Abstract

The utility model relates to a float obstructing type safety device for opening or closing cover of a pressure cooker, which comprises a blocking plate and floating valve components composed of a valve rod, a valve cap and a seal ring, wherein the blocking plate is fixed on the cooker body, the floating valve is arranged in a hole of a cooker cover, and the valve rod is provided with a gas hole or a gas groove; the valve rod is connected with the cooker cover via the valve cap. The utility model utilizes that the cooker cover of the pressure cooker is safely opened and closed by changing the relative positions of the floating valve and the blocking plate. The utility model has the advantages of simple and reasonable structure, high skill contents, reliable safety performance, easy assembly, low cost and easy use, and is an ideal safety device for pressure cookers.

Description

Pressure cooker float obstructing type cover closing and opening safety device

The utility model relates to a kind of cover closing and opening safety device for pressure cooker, belongs to the pressure cooker air-pressure automatic control device.

Present existing pressure cooker has uncaps and closes the device that covers security performance, and it installs complicated; Poor stability; Assembling, debugging difficulty is big, spare and accessory parts processing request height, and the cost height, the user uses inconvenience.

Can the utility model be the deficiency at existing cover closing and opening safety device, a kind of device of design: when pressure cooker is uncapped, utilize the variation of air pressure control float trap in the pot and baffle plate relative position to realize the security purpose that uncap; When pressure cooker closes when covering, utilize the variation of float trap and baffle plate relative position to realize the security purpose that can pot internal gas pressure rise.It is easy to use, and is simple in structure, rationally safe and reliable, is easy to promote.

Scheme of the present utility model: characteristics are to have to be fixed on a pot baffle plate on one's body, the upper end of baffle plate is positioned at the top of pot cover and substantially parallel with pot body bottom, one float trap is housed on pot cover, the installation site of float trap should meet following condition: when the pot cover age of a draught animal not exclusively fastened with the pot body age of a draught animal, float trap be positioned at baffle plate below, when the pot cover age of a draught animal fastened fully with the pot body age of a draught animal, float trap was positioned at the baffle edge outside.

Characteristics are float trap bonnets by valve rod, valve rod upper end, and the sealing ring of the valve seat of valve rod lower end and valve seat upper edge is formed; In the valve rod is cavity, and the stem lower portion side has blowhole and communicates with cavity, venthole is arranged on the bonnet, and communicate with cavity; Slip in nest hole on valve rod and the pot cover.The length of valve rod is: when valve rod rises to the extreme higher position, when promptly sealing ring on the valve rod base and pot cover joined, the upper edge of bonnet was concordant with the upper edge of baffle plate or be higher than the upper edge of baffle plate.

Characteristics be float trap by valve rod, the bonnet of the lower end of valve rod, the valve seat of valve rod upper end and the sealing ring of bonnet upper edge are formed, and several air drains are arranged on valve rod and valve seat.

Advantage of the present utility model and effect: utilize the variation of baffle plate and float trap relative position to reach the effect that can the controlled pressure pot uncap or close lid, to realize the security purpose of pressure cooker open and close cover.Security performance is stable, and is easy to use, simple and reasonable for structure, is easy to device, is easy to promote, and reduces cost.

Structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is the structural representation of the utility model embodiment 1.

Fig. 2 is the structural representation of the utility model embodiment 2.

Fig. 3 is the vertical view of the utility model embodiment 1, embodiment 2.

Be further described below in conjunction with accompanying drawing:

Embodiment 1, sees Fig. 1 and Fig. 3.Have a baffle plate (2) to be riveted on pot body (1) one side. with the long handle of pot body (1) over against; Float trap (9) is by valve rod (5), bonnet (6), and the sealing ring (11) on valve seat (12) and the valve seat (12) is formed, and is cavity (4) in the valve rod (5), and lower side has blowhole (10) and communicates with cavity (4); Venthole (3) is arranged on the bonnet (6), and the one end communicates with cavity (4), and the other end communicates with atmosphere; Float trap (9) is installed on the nest hole (8), and it is one side that its center of circle, median fovea hole (8) is positioned at pot cover (7) handle axis, and central angle is 15 ° position, is in simultaneously in the scope that baffle plate (2) puts in.

This device is work like this:

Closing when covering, when the age of a draught animal of age of a draught animal of pot cover (7) and pot body (1) did not fasten fully, float trap (9) was positioned at the below of baffle plate (2).If this moment is to filling the pressure cooker heating of food, though the pot internal gas pressure is with float trap (9) jack-up up, but owing to stopping of baffle plate (2), make float trap (9) can not continue to rise, sealing ring (11) can not be sealed nest hole (8), and the gas in the pot will be by blowhole (10), via valve rod air cavity (5), discharge along bonnet venthole (3), the air pressure of pressure cooker can not be risen, avoided because pot cover (7) age of a draught animal when body (a 1) age of a draught animal not fastening fully with pot, and the pressure cooker blasting phenomena that the pot internal gas pressure constantly rises and caused.Thereby realize that pressure cooker closes the requirement of covering security performance.

When the age of a draught animal of pot cover (7) fastened fully with pot age of a draught animal of body (1), float trap (9) is positioned at the outside, baffle plate (2) edge, if this moment is to filling the pressure cooker heating of food, the pot internal gas pressure can be with the complete jack-up of float trap (9), sealing ring (11) will be sealed the nest hole, the pot internal gas pressure will continue to rise, and make the pressure cooker operate as normal.

When uncapping, when still having air pressure in the pot if go to uncap, because float trap (9) is subjected to the effect of pot internal gas pressure to be in complete jack-up state, again because the upper edge of float trap (9) is not less than the upper edge of baffle plate (2), so rotation of float trap (9), be hampered by baffle plate (2), make pot cover (7) not open, avoided owing to still have the institute that uncaps by force than hyperbar to cause the consequence of the damage thing of hurting sb.'s feelings in the pot.Realized the pressure cooker security of uncapping.

When pot internal gas pressure indicating value approached zero, float trap (9) deadweight fell behind down, and baffle plate (2) can not stop the rotation of float trap (9), and pot cover (7) can be opened.

Embodiment 2, see Fig. 2 and Fig. 3.Have a baffle plate (2) to be riveted on pot body (1) one side, with the long handle of pot body (1) over against, float trap (9) by valve rod (5), the bonnet (6) of valve rod (5) lower end, the valve seat (12) of valve rod (5) upper end and the sealing ring (11) of bonnet (6) upper edge are formed; Valve rod (5) and valve seat (12) have some air drains (13), make in the pot to communicate with the external world; Float trap (9) is installed on the nest hole (8), and it is one side that its center of circle, median fovea hole (8) is positioned at the pot cover handle axis, and central angle is 15 ° position, is in simultaneously in the scope that baffle plate (2) puts in.

The work of this device is identical with embodiment 1 basically, and different is: this device is to discharge the interior gas of pot by air drain (13), and embodiment 1 is the blowhole (10) by Fig. 1, and air cavity (4) and venthole (3) are discharged the gas in the pot.

Claims

1, a kind of pressure cooker float obstructing type cover closing and opening safety device, it is characterized in that the baffle plate (2) that has one to be fixed on pot body (1), the upper end of baffle plate (2) is positioned at the top of pot cover (7) and substantially parallel with pot body (1) bottom, and a float trap (9) is housed on pot cover (7); The installation site of float trap (9) meets following condition: when the pot cover age of a draught animal not exclusively fastened with the pot body age of a draught animal, float trap (9) be positioned at baffle plate (2) below, when the pot cover age of a draught animal fastened with the pot body age of a draught animal fully with the pot body, float trap (9) was positioned at the outside, baffle plate (2) edge.

2, pressure cooker float-type according to claim 1 stops and closes lid and install fully, it is characterized in that described float trap (9) is made up of bonnet (6), the valve seat (12) of valve rod (5) lower end and the sealing ring (11) of valve seat (12) upper edge of valve rod (5), valve rod (5) upper end; In the valve rod (5) is cavity (4), and valve rod (5) lower side has blowhole (10), and communicates with cavity (4); Venthole (3) is arranged on the bonnet (6), and communicate with cavity (4); Valve rod (5) slips with the nest hole (8) on the pot cover (7).The length of valve rod (5) is: when valve rod (5) rises to the extreme higher position, i.e. and sealing ring (11) on the valve seat (12) and pot cover (7) when joining, the upper edge of bonnet (6) is concordant with the upper edge of baffle plate (2) or be higher than baffle plate (2) upper edge.

3, pressure cooker float obstructing type cover closing and opening safety device according to claim 1 and 2, it is characterized in that described float trap (9) is by valve rod (5), the bonnet (6) of valve rod (5) lower end, the valve seat (12) of valve rod (5) upper end and the sealing ring (11) of bonnet (6) upper edge are formed; On valve rod (5) and valve seat (12), have several outgassing grooves.