CN2766717Y

CN2766717Y - Pressure-limiting valve of pressure cooker

Info

Publication number: CN2766717Y
Application number: CN 200520069152
Authority: CN
Inventors: 王�华; 罗权
Original assignee: SUBOER COOKING UTENSIL CO Ltd ZHEJIANG
Current assignee: Zhejiang Supor Co Ltd
Priority date: 2005-02-05
Filing date: 2005-02-05
Publication date: 2006-03-29
Anticipated expiration: 2015-02-05

Abstract

The utility model provides a pressure-limiting valve of a pressure cooker, which belongs to the technical field of daily articles, wherein the pressure-limiting valve of the pressure cooker is arranged on an exhaust pipe of a pressure cooker cover; the cooker cover is fixedly connected with a valve seat; the exhaust pipe is positioned on the center of the valve seat; the valve seat is provided with a valve handle and a valve core; the valve handle is connected with the valve seat; the valve core is positioned between the valve handle and the cooker cover; the lower end of the valve core is pressed on the exhaust pipe; a spring is arranged between the valve core and the valve handle; the valve seat is provided with a plurality of exhaust holes. The pressure-limiting valve of the pressure cooker uses the elastic force of the spring to lead the valve core to be pressed on the exhaust pipe so that the exhaust pipe keeps being sealed. The inner side face of the valve seat is provided with at least one step. The outer side of the valve handle is provided with a blocking head. Under the action of the spring, the blocking head is blocked on the step. The utility model controls the pressure in the cooker by the elastic force of the spring, and has the advantages of reasonable and simple structure and good reliability. When the gear of the pressure is regulated, the valve handle only be rotated and the operation is very convenient.

Description

Limiting valve of pressure cooker

Technical field

The utility model belongs to the articles for daily use technical field, relates to the pressure limiting valve that uses on a kind of pressure cooker.

Background technology

Pressure cooker is a kind of kitchen articles commonly used.Can reach certain air pressure in order to make in the pot, and outwards exhaust when the pot internal gas pressure surpasses safe range, a pressure limiting valve is set on pot cover.Existing pressure limiting valve is to be pressed on the blast pipe of pressure cooker cover by himself weight, realizes its pressure limiting function.

When the working pressure pot, boiling pressure required in the various food pans can be different.At this moment, common way is weight of stack on pressure limiting valve, gains in weight by weight, makes in the pot to reach higher pressure.

Provide a kind of " pressure cooker adjustable pressure limiting valve " as Chinese patent 02217714.0, it is exactly the weight that increases pressure limiting valve self by the weight principle.In this pressure limiting valve, the weight of controlled pressure pot exhaust has third gear: first grade is the weight when not adding weight and lower heavy punch; Second grade is the lower draw-bar of the spool weight when tangling weight; Third gear has increased the weight of a lower heavy punch again on second grade basis.Though this pressure limiting valve can be realized branch gear controlled pressure, its structure is too complicated, makes the cost of product higher, and cleans also inconvenient in use.On the other hand, because weight separates with the pressure limiting valve valve body,, influence the normal use of pressure cooker so weight is lost easily in long-term use.

Summary of the invention

The purpose of this utility model is at the existing the problems referred to above of existing pressure limiting valve, and a kind of limiting valve of pressure cooker of novel structure is provided, and it adopts spring to come controlled pressure, has characteristics simple and reasonable, easy to adjust, dependable performance.

The purpose of this utility model can realize by following technical proposal: this limiting valve of pressure cooker is arranged at the blast pipe place of pressure cooker lid, it is characterized in that, a valve seat is being connected on the described pot cover, blast pipe is in the center of valve seat, and a valve handle and spool are arranged in valve seat, and valve handle is connected with valve seat, spool is between valve handle and the pot cover, and the lower end of spool is pressed on the blast pipe, is provided with a spring between spool and valve handle, is provided with several steam vents in the valve seat.

This limiting valve of pressure cooker is the elastic force that utilizes spring, and spool is pressed on the blast pipe, and the blast pipe maintenance is sealed.Like this, the air pressure in the pot will rise in the pressure cooker use.When the air pressure in the pot reached the value that sets, the pressure of gas acted on the spool, can make spool overcome the elastic force of spring and rose, and the gas in the pot just outwards discharges from the steam vent of blast pipe through valve seat.

In above-mentioned limiting valve of pressure cooker, the medial surface of described valve seat is provided with at least one step, is provided with the retaining head in the outside of valve handle, is keeping off first speed under the effect of spring on above-mentioned step.

This structure is the distance that is used to regulate between valve handle and the spool.Because spring is arranged between the two, therefore different distances can cause the elastic force of spring action on spool also different.When elastic force increased, the pressure set points of pressure cooker also just improved.

When conversion pressure gear, as long as rotate valve handle, the retaining first speed that changes the valve handle bottom promptly changes the upper-lower position of valve handle in the position of step; Simultaneously, because spool is pressed on the blast pipe, its position is fixed, so finally changed the distance between valve handle and the spool.

In above-mentioned limiting valve of pressure cooker, the center of described spool is a cavity, and a gib block is arranged on valve handle, and gib block inserts in the cavity of spool, and spring is placed on the gib block.Gib block plays the effect of guiding, makes spool position stability when moving up and down, and avoids occurring shift phenomenon.

In above-mentioned limiting valve of pressure cooker, the medial surface of described valve seat vertically has and the retaining equal number of valve handle and position groove one to one, and the size of groove is slightly larger than the size of retaining head.Embed a groove by retaining head, the valve seat or from valve seat, take out of just valve handle can being packed into.

In above-mentioned limiting valve of pressure cooker, it is conical that the lower end of described spool is.

Compared with prior art, the utlity model has following advantage:

1, this pressure limiting valve is controlled pot inner pressure by the elastic force of spring, its simple and reasonable, good reliability.

2, when regulating the pressure gear,, can fully satisfy user's actual needs as long as the rotation valve handle is easy to operate.

3, because this limiting valve of pressure cooker simple in structure, and valve seat and valve handle all can adopt plastics to make, and makes the production technology of product simple, cost is low.

Description of drawings

Fig. 1 is the cutaway view of the limiting valve of pressure cooker that provides of the utility model.

Fig. 2 is the cutaway view of valve seat in this limiting valve of pressure cooker.

Fig. 3 is the cutaway view of valve handle in this limiting valve of pressure cooker.

Among the figure, 1, valve seat; 11, step; 12, steam vent; 13, groove; 2, valve handle; 21, gib block; 22, retaining head; 3, spool; 31, cavity; 4, spring; 5, blast pipe; 6, pot cover.

The specific embodiment

As shown in Figure 1, this limiting valve of pressure cooker is installed on the pot cover 6 of pressure cooker, and it comprises parts such as valve seat 1, valve handle 2, spool 3 and spring 4.Valve seat 1 is connected with the pot cover 6 of pressure cooker, and its middle part is a cavity.The blast pipe 5 of pressure cooker is positioned at the cavity of valve seat 1.

As shown in Figure 1, be provided with valve handle 2 and spool 3 in the valve seat 1.The center of spool 3 is a cavity 31.A gib block 21 is arranged at valve handle 2 bottoms, and gib block 21 inserts in the cavity 31.Spring 4 is located between valve handle 2 and the spool 3.In the present embodiment, spring 4 is placed on the gib block 21.Under the effect of spring 4, press in the mouth of pipe of blast pipe 5 lower end of spool 3.It is conical that the lower end of spool 3 is, and helps the sealing of 3 pairs of blast pipes 5 of spool.

As shown in Figure 2, the medial surface of valve seat 1 has the step 11 of protrusion, step 11 be distributed in valve seat 1 medial surface around, and the height of each step 11 differs.As shown in Figure 3, be provided with two retainings 22 in the following side of valve handle 2.In the time of in valve handle 2 is loaded on valve seat 1, its retaining 22 at roof pressure under the effect of spring 4 on step 11.

When need regulating the pressure gear,, change the retaining position of 22 roof pressures on step 11, distance between valve handle 2 and the spool 3 is changed get final product as long as rotate valve handle 2.Obviously, easy to operate during use.

As shown in Figure 2, several steam vents 12 are arranged in valve seat 1.When the air pressure in the pot surpassed setting value, the gas in the pot will make spool 3 rise, and outwards discharges by blast pipe 5 and steam vent 12.

Take out from valve seat 1 for valve handle 2 being installed in the valve seat 1 or, in the present embodiment, vertically have two grooves 13 at the medial surface of valve seat 1 it.The position of groove 13 is corresponding with retaining 22, and its size is slightly larger than the size of retaining 22.Valve handle 2 can snap in the valve seat 1 along groove 13.

Claims

1, a kind of limiting valve of pressure cooker, the blast pipe (5) that is arranged at pressure cooker lid (6) is located, it is characterized in that, a valve seat (1) is being connected on the described pot cover (6), blast pipe (5) is in the center of valve seat (1), a valve handle (2) and spool (3) are arranged in valve seat (1), valve handle (2) is connected with valve seat (1), spool (3) is between valve handle (2) and the pot cover (6), and the lower end of spool (3) is pressed on the blast pipe (5), between spool (3) and valve handle (2), be provided with a spring (4), be provided with several steam vents (12) in the valve seat (1).

2, limiting valve of pressure cooker according to claim 1, it is characterized in that, the medial surface of described valve seat (1) is provided with at least one step (11), is provided with retaining head (22) in the outside of valve handle (2), is blocked on the above-mentioned step (11) at retaining head (22) under the effect of spring (4).

3, limiting valve of pressure cooker according to claim 1 and 2, it is characterized in that the center of described spool (3) is a cavity (31), a gib block (21) is arranged on valve handle (2), gib block (21) inserts in the cavity (31) of spool (3), and spring (4) is placed on the gib block (21).

4, limiting valve of pressure cooker according to claim 2, it is characterized in that, the medial surface of described valve seat (1) vertically has and retaining head (22) equal number of valve handle (2) and position groove (13) one to one, and the size of groove (13) is slightly larger than the size of retaining head (22).

5, limiting valve of pressure cooker according to claim 1 and 2 is characterized in that, it is conical that the lower end of described spool (3) is.

6, limiting valve of pressure cooker according to claim 4 is characterized in that, the following side of described valve handle (2) is provided with two retaining heads (22).