CN106539491B - Lid assembly and pressure cooker - Google Patents

Abstract

The invention discloses a pot cover assembly and a pressure cooker, belongs to the technical field of pressure cookers, and is designed for solving the problems of complex structure and the like of the conventional device. The cooker cover assembly comprises a pressure limiting valve and a valve body unbalance mechanism, wherein the valve body unbalance mechanism can continuously jack up the pressure limiting valve after being triggered, the pressure limiting valve is continuously in an exhaust state until the valve body unbalance mechanism is reset, and the electric pressure cooker recovers a high-pressure mode. The cooker cover assembly and the valve body unbalance mechanism of the pressure cooker can continuously jack up the pressure limiting valve after being triggered, so that the pressure limiting valve is continuously in the exhaust state until the valve body unbalance mechanism is reset, the cooker cover of the electric pressure cooker is opened or the cooker cover is rotated, and the high-pressure mode is recovered; the assembly is easy, the assembly efficiency is high, and the cost is low.

Description

Lid assembly and pressure cooker

technical field

The invention relates to the technical field of pressure cookers, in particular to a pot cover assembly and a pressure cooker including the pot cover assembly.

Background technique

A pressure cooker (including but not limited to an electric pressure cooker) is a cooking device that can provide pressure in the pot during operation. The high-pressure mode can shorten the cooking time of food, but some food is easy to be cooked too badly. Compared with the cooking effect of rice cooker, it is easy to have problems such as dull color, poor taste, and unsatisfactory comprehensive effect.

Some pressure cookers are equipped with electromagnetic valves, which are used to exhaust and release pressure to achieve the effect of pressure-free cooking. But this electric pressure cooker has complex structure, high cost and inconvenient use.

Contents of the invention

One object of the present invention is to provide a pot lid assembly with a high pressure mode and a pressureless cooking mode.

Another object of the present invention is to propose a pressure cooker with full functions and easy to use.

For reaching this purpose, on the one hand, the present invention adopts following technical scheme:

A pot cover assembly, comprising a pressure limiting valve and a valve body unbalance mechanism. After the valve body unbalance mechanism is triggered, it can continuously lift up the pressure limiting valve, so that the pressure limiting valve is continuously in the exhaust state until the valve The body imbalance mechanism is reset, and the electric pressure cooker returns to high pressure mode.

In particular, the valve body unbalance mechanism includes a lever, a button and a positioning member; the first end of the lever is connected to the button, and the button can make the lever be in a jacked-up state or a reset state; the lever's A push rod is arranged on the second end, and when the lever is in a jacked-up state, the second end rides on the positioning member so that the push rod continues to jack up the pressure limiting valve.

Further, a return spring is provided on the lever, and the return spring provides pulling force or pushing force for the lever so as to release the state of jacking up the pressure limiting valve.

In particular, a limiting spring is arranged on the positioning member, and when the positioning member moves backward, the limiting spring provides a pushing force for the forward movement of the positioning member.

Preferably, the force causing the positioning member to move backward is the thrust applied to the positioning member when the second end of the lever is lifted upwards or the thrust exerted by the teeth of the pot on the positioning member when the pot cover is rotated.

In particular, at least part of the second end of the lever has a slope-like structure, and the lower surface of the positioning member close to the end of the lever has an outwardly convex arc shape.

In particular, the pot cover assembly includes a pot cover, a fixing hole is arranged in the pot cover; a fixing boss is arranged on the lever, and the fixing boss is installed in the fixing hole.

Further, the fixing boss can rotate around its own axis in the fixing hole, and the fixing boss can reciprocate along the extending direction of the fixing hole.

Preferably, at least one end of the extending direction of the fixing hole is an opening structure, and the opening structure is located outside the reciprocating movement line of the fixing boss.

In particular, the lever is provided with a chute, and the button is provided with a slanted post, and when the slanted post is pressed down, the lever moves along the inclined direction of the chute.

Preferably, an auxiliary cylinder is also provided on the key, and the auxiliary cylinder and the inclined column are pressed down or lifted at the same time; the auxiliary cylinder and the inclined column are in a split structure or an integral structure.

Preferably, a column is further arranged on the button, and the pressing or lifting action of the column is independent of the pressing or lifting action of the inclined column.

Further, there is a gap between the second end of the lever and the end of the positioning member close to the lever when the inclined column is pressed down by a set distance.

In particular, the positioning member is a float push rod connecting plate.

On the other hand, the present invention adopts the following technical solutions:

A pressure cooker includes the above-mentioned pot cover assembly.

After the valve body unbalance mechanism of the pot cover assembly of the present invention is triggered, the pressure limiting valve can be continuously pushed up, so that the pressure limiting valve is continuously in the exhaust state until the valve body unbalance mechanism is reset, the pot cover of the electric pressure cooker is opened or the pot cover is rotated The electric pressure cooker returns to the high-pressure mode. The pressure-limiting valve is used to continuously exhaust to realize the non-pressure cooking mode. It can also be manually exhausted. The structure is simple and reliable, and it is convenient to use; it is easy to assemble, high in assembly efficiency, and low in cost.

The pressure cooker of the present invention includes the above-mentioned pot cover assembly, which can be manually exhausted temporarily or continuously to realize the pressureless cooking mode, has complete functions and is convenient to use.

Description of drawings

Fig. 1 is a schematic structural view of a dual-mode electric pressure cooker provided by preferred embodiment 1 of the present invention;

Fig. 2 is a schematic structural view of the valve body imbalance mechanism provided by the preferred embodiment 1 of the present invention when it is in a jacked-up state;

Fig. 3 is a partial enlarged view of place A in Fig. 2;

Fig. 4 is a schematic structural diagram of the lever provided by the first preferred embodiment of the present invention;

Fig. 5 is a schematic structural view of the lever and button combination provided by the first preferred embodiment of the present invention;

Fig. 6 is a schematic structural view of the valve body unbalance mechanism provided in preferred embodiment 1 of the present invention when it is in a reset state;

Fig. 7 is a schematic structural view of the valve body imbalance mechanism provided by the preferred embodiment 1 of the present invention when it is in the manual exhaust state;

Fig. 8 is a schematic structural view of the pot body provided by the first preferred embodiment of the present invention;

Fig. 9 is a schematic diagram of the structure of the pot body when the pot cover is rotated according to the preferred embodiment 1 of the present invention.

In the picture:

1. Pressure limiting valve; 2. Lever; 3. Button; 4. Positioning piece; 5. Pot cover; 6. Pot tooth; 21. Ejector; 22. Fixed boss; 23. Return spring; 24. Slope-like structure ; 25, chute; 26, return spring installation column; 31, inclined column; 32, cylinder; 33, auxiliary cylinder; 41, limit spring; 42, lower surface; 43, float hole.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

Preferred embodiment one:

The preferred embodiment discloses a pot cover assembly. As shown in Figure 1, the pot cover assembly includes a pressure limiting valve 1 and a valve body imbalance mechanism. After the valve body imbalance mechanism is triggered, it can continuously lift the pressure limiting valve 1, so that the pressure limiting valve 1 continues to be in the exhaust state until the valve body The unbalance mechanism is reset and the electric pressure cooker returns to high pressure mode. Among them, the method for the valve body unbalance mechanism to be reset includes but is not limited to pressing the reset button, opening the pot cover of the electric pressure cooker or rotating the pot cover; The gas state does not include the working state where the pressure limiting valve 1 is slightly unbalanced but not exhausted due to the action of the sealing device.

This electric pressure cooker includes high pressure mode and pressureless cooking mode, the default is high pressure mode. Among them, the pressure-free cooking mode is realized by using the unbalanced mechanism of the valve body to continue to lift the pressure limiting valve 1 and keep the pressure limiting valve 1 in the exhaust state, which can avoid water spray or overflow, improve product safety, and ensure Foodstuffs that are not suitable for high-pressure mode can also be cooked with the electric pressure cooker, which expands the scope of application of the electric pressure cooker, and the cooking effect is good; the structure of the existing electric pressure cooker has little change, and it can be produced with a slight modification on the existing production line. Low manufacturing cost.

The specific structure of the valve body unbalance mechanism is not limited. It may use a mechanical structure to ensure that the valve body unbalance mechanism can continue to lift the pressure limiting valve 1 after being triggered, or use electromagnetic principles to ensure that the valve body unbalance mechanism can be maintained at the top position after being triggered. The posture of the pressure limiting valve 1 can also be realized by other means.

As shown in Figures 1 to 9, the preferred structure of the valve body imbalance mechanism includes a lever 2, a button 3 and a positioning member 4; the first end of the lever 2 is connected to the button 3, and the button 3 can make the lever 2 be in a jacked-up state or reset state; the second end of the lever 2 is provided with a push rod 21, and when the lever 2 is in the jacked-up state, its second end rides on the positioning member 4 so that the push rod 21 continues to lift the pressure limiting valve 1; the lever 2 is set There are fixed bosses 22 .

Specifically, the button 3 includes two (a steam exhaust key and a rice cooker key). After the steam exhaust key is pressed, the cylinder 32 presses down the first end of the lever 2, the second end of the lever 2 is lifted, and the ejector rod 21 continues Jack up the pressure limiting valve 1, at this time the lever 2 is in the jacking up state; after pressing the rice cooker button, the second end of the lever 2 falls, the ejector rod 21 is separated from the pressure limiting valve 1, and the pressure limiting valve 1 returns to the normal working state, at this time Lever 2 is in reset state.

In the reset state, there is no limit to the specific way in which the second end of the lever 2 falls. A return spring 23 may be provided on the lever 2, and the return spring 23 provides a pulling force or a thrust force for the lever 2 to remove the state of lifting the pressure limiting valve 1; The principle that the second end of the lever 2 is heavier than the first end may be utilized, or the principle that the pressure limiting valve 1 exerts a downward force on the second end of the lever 2 . Whether the return spring 23 provides the pulling force or the pushing force depends on the position of the return spring mounting post 26 relative to the fixed boss 22 .

In order to make the positioning member 4 clamp the second end of the lever 2 in the non-pressure cooking mode, a limit spring 41 is arranged on the positioning member 4, and when the positioning member 4 moves backward, the limiting spring 41 provides the positioning member 4 with the ability to move forward. thrust. Wherein, the force causing the positioning member 4 to move backward may be, but not limited to, the thrust applied to the positioning member 4 when the second end of the lever 2 is lifted up or the thrust applied to the positioning member 4 by the pot teeth 6 when the pot cover is rotated.

That is, the second end of the lever 2 is flush with the end of the locating member 4 or below the end of the locating member 4 at ordinary times, and will move forward and upward when the second end of the lever 2 is lifted. The second end of the locating member 4 will be pushed back (the left direction in Fig. 2), and the lever 2 will not retreat (the right direction in Fig. 2) under the action of the return spring 23; After the part 4 goes up, the thrust disappears, and the limit spring 41 pushes the locating part 4 to move forward (the right direction in Fig. 2), and the end of the locating part 4 is located below the second end of the lever 2, thereby blocking the second end of the lever 2 , make it continue to be in the space posture.

The pot tooth is a structure formed by the side of the pressure cooker shell protruding outward. When the pot cover is rotated, the positioning part 4 will move with the pot cover. When the pot cover rotates at a certain angle, the positioning part 4 will push against the outer edge of the pot tooth. superior. The positioning piece 4 continues to move outward along with the convex shape of the pot tooth, until it crosses the section where the pot tooth is located, and the positioning piece 4 returns to its original position under the action of the limit spring 41 .

The positioning member 4 can be a float push rod connecting plate, which realizes the positioning function of the lever 2 on the basis of the existing structure, which saves space and reduces costs. A float hole 43 is arranged on the connecting plate of the float push rod, and a float valve is arranged in the float hole 43. When the float is lifted, the sealing ring of the float is pressed against the float valve to play a sealing effect.

There are three relative positional relationships between the positioning member 4 and the lever 2: 1. Under normal use, as shown in Figure 6, the second end of the lever 2 is located below the end of the positioning member 4, and the projections of the two overlap on the horizontal plane 1. There is a small distance in the vertical direction; 2. In the pressureless cooking mode, as shown in Figure 2, the second end of the lever 2 rides above the end of the positioning member 4, and the projection of the two on the horizontal plane overlaps. Closely attached in the vertical direction; three, when the pot cover is rotated, the positioning part 4 is pushed out by the pot teeth 6, as shown in Figure 8 and Figure 9 (the arrow shows the direction of rotation of the pot cover in Figure 9), and the lever 2 is the second end is not in contact with the positioning piece 4 and there is no overlap between the projections of the two on the horizontal plane, or the lever 2 is pulled back as a whole during manual exhaust, as shown in Figure 7, at this time the second end of the lever 2 and the positioning piece 4 are also No contact and no overlap between the two projections on the horizontal plane.

In order to reduce the reaction force of the end of the positioning member 4 on the second end of the lever 2 as much as possible, to ensure that the use is more labor-saving, and to prolong the service life of the device, at least part of the second end of the lever 2 is a slope-shaped structure 24, and the positioning member 4 is close to the lever. The lower surface 42 of the end of 2 is in a convex arc shape. When the second end of the lever 2 is lifted up, the slope-shaped structure 24 contacts the lower surface 42 and exerts a force smoothly, only a relatively small force is required to push the positioning member 4 back. The slope-shaped structure 24 may be, but not limited to, slope downward from the lever 2 to the positioning member 4 .

On the basis of the above structure, the pot cover assembly includes a pot cover 5, a fixing hole is arranged in the pot cover 5, and the fixing boss 22 is installed in the fixing hole. The specific setting position of the fixing hole is not limited, it can be at the inner cover, the face cover or other positions, as long as the fixing boss 22 can be firmly installed. The fixed post 22 can rotate around its own axis in the fixed hole (at this time, one end of the lever 2 is lifted up and the other end is dropped), and the fixed post 22 can move back and forth along the extension direction of the fixed hole (at this time, the lever 2 moves forward as a whole or back). The fixing hole can be, but not limited to, a waist-shaped hole or a strip-shaped hole, which can allow the reciprocating movement of the fixed boss 22 from the lever 2 to the pressure limiting valve 1, and the specific moving distance is not limited.

In order to facilitate installation, an opening (U-shaped hole or C-shaped hole) is formed at one end of the extending direction of the fixing hole or openings are formed at both ends (similar to the way that the fixing boss 22 moves back and forth between two rods). channel), the opening structure is located outside the reciprocating line of the fixing boss 22 to ensure that the fixing boss 22 will not slip out from the end of the fixing hole during normal use.

There is no limit to the specific way for the valve body unbalance mechanism to be reset, as long as the second end of the lever 2 is separated from the positioning member 4 and the ejector rod 21 cannot support the pressure limiting valve 1 . Preferably, as shown in Figure 3 and Figure 4, the lever 2 is provided with a chute 25, and the button 3 is provided with a slanted column 31, when the slanted column 31 is pressed down, the lever 2 is inclined along the inclined direction of the chute 25 (in FIG. right) to move.

Specifically, after pressing the rice cooker key, the inclined column 31 is pressed down along the chute 25, and the lever 2 retreats as a whole (the right side in Fig. 3 ), at this moment, the second end of the lever 2 is separated from the positioning member 4, and the return spring 23 is stretched. , impel the second end of the lever 2 to fall (at this time, the pressure limiting valve 1 will also exert a certain downward pressure on the ejector rod 21), the ejector rod 21 continues to fall until it is separated from the pressure limiting valve 1, and the pressure limiting valve 1 returns to normal working state, Lever 2 is in reset state.

In order to ensure that the second end of the lever 2 can be disengaged from the positioning member 4 smoothly, the overlapping part between the second end of the lever 2 and the positioning member 4 should not be too long. That is, a gap is generated between the second end of the lever 2 and the end of the locator 4 near the lever 2 after the lever 2 retreats a set distance, leaving a space for the second end of the lever 2 to fall.

In addition to the above-mentioned two main working modes of high pressure mode and pressureless cooking mode, the pot cover assembly can also press the button 3 after the high pressure cooking work (exhaust steam button or rice cooker button can be used, preferably rice cooker button) , the second end of the lever 2 can be moved up and down, and the push rod 21 can lift the pressure limiting valve 1 to realize manual exhaust.

A preferred structure for realizing manual exhaust is to set an auxiliary cylinder 33 beside the slanted column 31 , and the auxiliary cylinder 33 and the slanted column 31 are pressed down or lifted simultaneously. As shown in Figure 5, when the pot lid assembly is in the high-pressure mode, the rice cooker key is pressed, and the inclined column 31 and the auxiliary column 33 are pressed down simultaneously, the inclined column 31 pulls the lever 2 backward, and the auxiliary column 33 pulls the first end of the lever 2 Press down to make the second end of the lever 2 lift up, and the pressure limiting valve 1 exhausts; when the user lets go, the auxiliary column 33 and the inclined column 31 are lifted simultaneously, the second end of the lever 2 falls, and the pressure limiting valve 1 recovers High voltage state mode. The auxiliary column 33 and the slanting column 31 are a split structure or an integral structure, and it is sufficient that they can move simultaneously.

That is, the steam exhaust key drives the cylinder 32 to press down to make the pressure limiting valve 1 continue to be in the exhaust state, while the auxiliary cylinder 33 that moves simultaneously with the inclined column 31 can only temporarily make the pressure limiting valve 1 in the exhaust state after being pressed down. Therefore, the pressing or lifting action of the column 32 is independent of the pressing or lifting action of the slanted column 31 , while the slanted column 31 is linked with the auxiliary column 33 . Specifically, when the cylinder 32 or the auxiliary cylinder 33 is pressed down, they respectively press on the planes on both sides of the chute 25 .

Preferred embodiment two:

This preferred embodiment discloses a pressure cooker, which includes the pot cover assembly as described in the first preferred embodiment. It can be manually exhausted for a short time or continuously to achieve pressure-free cooking mode. It has full functions and is easy to use.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (13)

1. A pot cover assembly, characterized in that it comprises a pressure limiting valve (1) and a valve body imbalance mechanism, and the valve body imbalance mechanism can continue to jack up the pressure limiting valve (1) after being triggered, so that the The pressure limiting valve (1) continues to be in the exhaust state until the valve body imbalance mechanism is reset, and the electric pressure cooker returns to the high pressure mode; The valve body unbalance mechanism includes a lever (2), a button (3) and a positioning member (4); the first end of the lever (2) is connected to the button (3), and the button (3) can make The lever (2) is in a jacked-up state or a reset state; a push rod (21) is arranged on the second end of the lever (2), and when the lever (2) is in a jacked-up state, its second The end rests on the positioning member (4) so that the ejector rod (21) continues to lift the pressure limiting valve (1); the button (3) includes a steam exhaust button and a rice cooker button; At least part of the second end of the lever (2) is a slope-shaped structure (24), and the lower surface (42) of the positioning member (4) near the end of the lever (2) is an outwardly convex arc shape. 2. The pot lid assembly according to claim 1, characterized in that, the lever (2) is provided with a return spring (23), and the return spring (23) provides pulling or pushing force for the lever (2) To make it remove the state of jacking up the pressure limiting valve (1). 3. The pot lid assembly according to claim 1, characterized in that, a limiting spring (41) is arranged on the positioning member (4), and when the positioning member (4) moves backward, the limiting spring ( 41) Provide forward thrust for the positioning member (4). 4. The pot lid assembly according to claim 3, characterized in that, the force causing the positioning member (4) to move backward is that the second end of the lever (2) lifts up against the positioning member ( 4) The thrust applied or the thrust exerted by the pot tooth (6) on the positioning member (4) when the pot cover is rotated. 5. The pot cover assembly according to any one of claims 1 to 4, characterized in that, the pot cover assembly comprises a pot cover (5), and a fixing hole is arranged in the pot cover (5); A fixing boss (22) is arranged on the lever (2), and the fixing boss (22) is installed in the fixing hole. 6. The pot lid assembly according to claim 5, characterized in that, the fixing boss (22) can rotate around its own axis in the fixing hole, and the fixing boss (22) can rotate along the The extending direction of the fixing hole reciprocates. 7. The pot lid assembly according to claim 6, characterized in that, at least one end in the extending direction of the fixing hole is an opening structure, and the opening structure is positioned at the position where the fixing boss (22) moves back and forth. outside of the line. 8. The pot lid assembly according to any one of claims 1 to 4, characterized in that, the lever (2) is provided with a chute (25), and the button (3) is provided with a slanted column ( 31), when the inclined column (31) is pressed down, the lever (2) moves along the inclined direction of the chute (25). 9. The pot lid assembly according to claim 8, characterized in that an auxiliary cylinder (33) is arranged on the button (3), and the auxiliary cylinder (33) is lowered simultaneously with the inclined column (31) Press or lift; the auxiliary column (33) and the inclined column (31) are a split structure or an integral structure. 10. The pot lid assembly according to claim 8, characterized in that, a column (32) is further arranged on the button (3), and the pressing down or lifting action of the column (32) is independent of the The depressing action of inclined column (31) or lifting action. 11. The pot lid assembly according to claim 8, characterized in that, when the inclined column (31) is pressed down for a set distance, the second end of the lever (2) is close to the positioning member (4) There is a gap between the ends of the lever (2). 12. The pot lid assembly according to any one of claims 1 to 4, characterized in that the positioning member (4) is a float push rod connecting plate. 13. A pressure cooker, characterized by comprising the pot cover assembly according to any one of claims 1-12.