CN111110021A

CN111110021A - Pressure cooking appliance

Info

Publication number: CN111110021A
Application number: CN201811291668.0A
Authority: CN
Inventors: 曾俊兵; 刘日贵; 王本新; 许晶羽
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-05-08

Abstract

The present invention provides a pressure cooking appliance, comprising: a pan body; the cooker cover is provided with a locking position locked on the cooker body and an unlocking position which can be opened from the cooker body, and an exhaust passage is arranged on the cooker cover; the cover opening part drives the pot cover to be switched between a locking position and an unlocking position; a pressure limiting valve capable of cooperating with the exhaust passage; the lever structure comprises a lever body and a matching structure, wherein the lever body is arranged in a pivoting mode through a pivot, the matching structure is connected with the side edge of the lever body, the first end of the lever body and the matching structure are located on the same side of the pivot, and the cover opening part can upwards abut against the matching structure to enable the first end of the lever body to abut against the pressure limiting valve to enable the pressure limiting valve to be far away from the exhaust channel under the condition that the cover opening part is switched from a locking position to an unlocking position; the heating device is used for heating food in the pot body. By applying the technical scheme of the invention, the problem of high production cost of the pressure cooking appliance in the prior art can be effectively solved.

Description

Pressure cooking appliance

Technical Field

The invention relates to the field of small household appliances, in particular to a pressure cooking appliance.

Background

Pressure cooking utensil is when the culinary art, and the pressure of its culinary art intracavity is great, and after the culinary art, if the user did not arrange the pressure in the pot and accomplish, and uncap by force, the user is scalded very easily after uncapping owing to there is partial steam pressure in the culinary art intracavity, causes the human injury. In order to avoid the above situation, a manual exhaust button or a solenoid valve combined program is usually arranged in the pressure cooking appliance to push a pressure limiting valve of the pressure cooking appliance to exhaust and release pressure, and then the pressure cooking appliance can be opened, so as to reduce the risk of scalding a user. Although the structure can reduce the scalding risk of a user, the reliability is low and the production cost is high.

Disclosure of Invention

The invention mainly aims to provide a pressure cooking appliance to solve the problem that the pressure cooking appliance in the prior art is high in production cost.

In order to achieve the above object, the present invention provides a pressure cooking appliance, comprising: a pan body; the cooker cover is provided with a locking position locked on the cooker body and an unlocking position which can be opened from the cooker body, and an exhaust passage is arranged on the cooker cover; the cover opening part drives the pot cover to be switched between a locking position and an unlocking position; a pressure limiting valve capable of cooperating with the exhaust passage; the lever structure comprises a lever body and a matching structure, wherein the lever body is arranged in a pivoting mode through a pivot, the matching structure is connected with the side edge of the lever body, the first end of the lever body and the matching structure are located on the same side of the pivot, and the cover opening part can upwards abut against the matching structure to enable the first end of the lever body to abut against the pressure limiting valve to enable the pressure limiting valve to be far away from the exhaust channel under the condition that the cover opening part is switched from a locking position to an unlocking position; the heating device is used for heating food in the pot body.

Further, the matching structure comprises a base body connected with the lever body and a protruding portion arranged on one side, close to the pivot, of the base body, and the lower surface of at least part of the protruding portion is lower than the lower surface of the base body and can be in butt fit with the cover opening piece.

Further, the base body and the protruding portion are integrally formed.

Further, the lower surface of the convex portion includes a circular arc surface protruding downward.

Furthermore, the lever body is a first plate body, the matching structure is a second plate body connected with the side edge of the first plate body, and the side edge of the second plate body close to the pivot is bent and curled to form a protruding part.

Further, the lever body and the matching structure are of an integrally formed structure.

Further, the lever structure is made of a metal material.

Further, the cover opening part comprises a handle seat which can be arranged in a pivoted mode and a handle which is fixed to the handle seat, part of the handle seat is located below the matching structure, and under the condition that the cover opening part is switched from the locking position to the unlocking position, the handle seat can upwards abut against the matching structure.

Further, the handle seat includes the seat body and sets up the rotatory piece on the seat body lateral wall, and the terminal surface of rotatory piece is the direction inclined plane, is the obtuse angle between the upper surface of direction inclined plane and rotatory piece, and the cooperation structure can be in the direction of direction inclined plane down with the upper surface cooperation of rotatory piece.

Further, a concave structure is provided on the upper surface of the rotating block at a position close to the seat body.

Further, the cooking appliance further includes: and the exhaust button is opposite to the second end of the lever body and is positioned above the second end of the lever body.

Further, the pot cover comprises a face cover, an inner lining and an inner cover which are sequentially arranged from outside to inside, cover teeth are arranged on the inner cover, pot teeth matched with the cover teeth are arranged on the pot body, the pot cover is located at a locking position under the condition that the pot teeth are buckled with the cover teeth, the pot cover is located at an unlocking position under the condition that the pot teeth are separated from the cover teeth, and the cover opening part and the lever structure are pivotally arranged on the inner lining.

Furthermore, the face cover is provided with an accommodating concave part for accommodating the pressure limiting valve, the side wall of the accommodating concave part is provided with an avoiding opening, a sealing element is arranged at the avoiding opening, a mounting hole is formed in the sealing element, the first end of the lever body can extend into the accommodating concave part from the mounting hole and is abutted against the pressure limiting valve, and the hole wall of the mounting hole is in interference fit with the lever body.

By applying the technical scheme of the invention, the cover opening piece can upwards abut against the matching structure to enable the first end of the lever body to abut against the pressure limiting valve to enable the pressure limiting valve to be far away from the exhaust channel under the condition that the cover opening piece is switched from the locking position to the unlocking position. By the structure, a user can push against the pressure limiting valve to exhaust and release pressure in the cover opening process, and the user is prevented from being scalded by steam in the cooker body. In addition, because the pressure limiting valve does not need to be pushed by a solenoid valve or a hand, but is matched with the cover opening piece, the structure increases the reliability on one hand and reduces the production cost on the other hand.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded view of a lid of an embodiment of a pressure cooking appliance according to the present invention;

figure 2 shows a schematic top view of the inner liner of the pot lid of figure 1 with the projections cooperating with the guide ramps;

FIG. 3 shows a schematic perspective view of the liner of FIG. 2;

FIG. 4 shows an enlarged schematic view at A of the liner of FIG. 3;

figure 5 shows a schematic top view of the inner liner of the pot lid of figure 1 with the lugs engaging the upper surface of the rotary block;

FIG. 6 shows a schematic perspective view of the liner of FIG. 5;

FIG. 7 shows an enlarged schematic view at B of the liner of FIG. 6;

fig. 8 shows a perspective view of a lever structure of the pressure cooking appliance of fig. 1;

FIG. 9 illustrates a perspective view of a handle base of the pressure cooking appliance of FIG. 1;

figure 10 shows a schematic cross-sectional view of the lid of figure 1; and

fig. 11 shows an enlarged structural view at C of the pot lid of fig. 10.

Wherein the figures include the following reference numerals:

1. an exhaust passage; 10. a pot cover; 11. a face cover; 111. an accommodation recess; 12. a liner; 13. an inner cover; 131. covering teeth; 20. opening the cover piece; 21. a handle base; 211. a seat body; 212. rotating the block; 213. a guide slope; 214. a recessed structure; 22. a handle; 30. a pressure limiting valve; 40. a lever structure; 41. a lever body; 411. a first end; 412. a second end; 42. a mating structure; 421. a substrate; 422. a projection; 423. a circular arc surface; 50. a pivot; 60. an exhaust button; 70. and a seal.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 11, the pressure cooking appliance of the present embodiment includes: a pot body, a pot cover 10, a cover opening member 20, a pressure limiting valve 30, a lever structure 40 and a heating device. Wherein, the pot cover 10 has a locking position locked on the pot body and an unlocking position capable of being opened from the pot body, and the pot cover 10 is provided with an exhaust passage 1. The lid opening member 20 drives the lid 10 to switch between the locked position and the unlocked position. The pressure-limiting valve 30 can cooperate with the exhaust channel 1. The lever structure 40 includes a lever body 41 pivotably provided through a pivot 50 and a fitting structure 42 connected to a side edge of the lever body 41, a first end 411 of the lever body 41 and the fitting structure 42 are located on the same side of the pivot 50, and in a case where the lid opening member 20 is switched from the locking position to the unlocking position, the lid opening member 20 can be pressed upward against the fitting structure 42 so that the first end 411 of the lever body 41 is pressed against the pressure limiting valve 30 to keep the pressure limiting valve 30 away from the exhaust passage 1. The heating device is used for heating food in the pot body.

By applying the technical solution of the embodiment, when the lid opening member 20 is switched from the locking position to the unlocking position, the lid opening member 20 can prop up the engaging structure 42 so that the first end 411 of the lever body 41 props against the pressure limiting valve 30 to make the pressure limiting valve 30 far away from the exhaust passage 1. The structure enables a user to prop against the pressure limiting valve 30 to exhaust and release pressure in the uncovering process, and prevents steam in the cooker body from scalding the user. In addition, because the pressure limiting valve does not need to be pushed by a solenoid valve or a hand, but is matched with the cover opening piece, the structure increases the reliability on one hand and reduces the production cost on the other hand.

It should be noted that, in this embodiment, the heating device is a heating plate or an IH heating plate, the pot body includes a shell, a heat preservation cover and an inner pot which are sequentially arranged from outside to inside, the inner pot has a cooking cavity, and the heating device is arranged between the inner pot and the shell for heating food in the cooking cavity.

The inventor finds in long-term research that even if the pressure limiting valve is abutted in the uncovering process, a certain pressure still exists in the pot body when the pot cover is in the unlocking position. In order to solve the above problems, the inventor found that the pressure in the cooker body can be discharged as much as possible by pushing against the pressure limiting valve in advance to increase the pressure relief time. In order to achieve the purpose of abutting against the pressure limiting valve as early as possible, as shown in fig. 4, 7 and 8, in the present embodiment, the engaging structure 42 includes a base 421 connected to the lever body 41 and a protruding portion 422 disposed on a side of the base 421 close to the pivot 50, and a lower surface of at least a part of the protruding portion 422 is lower than a lower surface of the base 421 and can be abutted and engaged with the lid opening member 20. The above structure makes the protrusion 422 closer to the opening cover member matched with the base 421 relative to the base 421 in the rotating direction of the opening cover member 20, so that the opening cover member can upwards abut against the protrusion 422 only by rotating a small angle, and finally the first end 411 of the lever body 41 upwards abuts against the pressure limiting valve 30 to realize air exhaust.

As shown in fig. 4, 7 and 8, in the present embodiment, the base 421 and the protruding portion 422 are integrally formed. The structure is simple, the processing is easy, the production efficiency is high, and the production cost is low.

As shown in fig. 8, in the present embodiment, the lower surface of the convex portion 422 includes a circular arc surface 423 protruding downward. The structure enables the lower surface of the protruding part 422 to be in smooth contact with the cover opening part 20, and the problems of interference and unsmooth opening and closing caused by burrs cannot occur. In addition, the above structure can minimize the abrasion of the opening and closing member 20 and improve the service life of the opening and closing member 20.

As shown in fig. 4, 7 and 8, in the present embodiment, the lever body 41 is a first plate, the matching structure 42 is a second plate connected to a side edge of the first plate, and a side edge of the second plate close to the pivot 50 is bent and curled to form the protruding portion 422. The structure is simple, the processing is easy, and the production cost is low.

As shown in fig. 8, in the present embodiment, the lever body 41 and the engaging structure 42 are integrally formed. The structure is simple, the processing is easy, and the production cost is low.

In the present embodiment, the lever structure 40 is made of a metal material. The above structure makes the lever structure 40 less likely to be deformed even in a high-temperature, high-humidity environment, and improves reliability. Preferably, in the present embodiment, a reinforcing structure is provided on the lever structure 40 to further prevent the lever structure 40 from being deformed.

As shown in fig. 1 to 7, 9 and 10, in the present embodiment, the lid opening member 20 includes a pivotally disposed handle base 21 and a handle 22 fixed to the handle base 21, a part of the handle base 21 is located below the fitting structure 42, and the handle base 21 can abut up against the fitting structure 42 in a case where the lid opening member 20 is switched from the locking position to the unlocking position.

As shown in fig. 4, 7 and 8, in the present embodiment, the handle holder 21 includes a holder body 211 and a rotation block 212 disposed on a side wall of the holder body 211, an end surface of the rotation block 212 is a guide inclined surface 213, an obtuse angle is formed between the guide inclined surface 213 and an upper surface of the rotation block 212, and the engagement structure 42 can be engaged with the upper surface of the rotation block 212 under the guidance of the guide inclined surface 213. Specifically, when the user opens the lid and the rotating block 212 rotates to the predetermined position, the guiding inclined plane 213 moves to contact with the protrusion 422, and since the guiding inclined plane 213 inclines upward, when the rotating block 212 rotates forward again, the protrusion 422 tilts upward along the guiding inclined plane 213 (shown in fig. 3 and 4), and the pressure limiting valve 30 is lifted up to release the air and release the pressure simultaneously. When the protrusion 422 abuts on the upper surface of the rotating block 212, the lever structure 40 reaches the maximum distance position of tilting, and the pressure limiting valve 30 (shown in fig. 6 and 7) can be tilted completely, so that the pressure in the cooker can be discharged quickly.

As shown in fig. 9, in the present embodiment, a concave structure 214 is provided on an upper surface of the rotation block 212 at a position close to the holder body 211. The structure can reduce the contact area between the rotating block 212 and the protruding part 422, reduce the friction force and improve the smoothness of opening the cover.

As shown in fig. 1, 10 and 11, in the present embodiment, the cooking appliance further includes an exhaust button 60, and the exhaust button 60 is opposite to the second end 412 of the lever body 41 and is located above the second end 412 of the lever body 41. When manual venting is required, the venting button can be pressed, the venting button 60 applies downward pressure to the second end 412 of the lever body 41, and the first end 411 of the lever body 41 can be tilted upward to abut against the pressure limiting valve 30.

It should be noted that, with the structure of the present embodiment, the position between the exhaust button 60 and the handle 22 is flexible, and the arrangement can be performed according to actual situations.

As shown in fig. 10, in the present embodiment, the pot cover 10 includes a surface cover 11, an inner liner 12 and an inner cover 13, which are sequentially arranged from outside to inside, the inner cover 13 is provided with cover teeth 131, the pot body is provided with pot teeth matched with the cover teeth 131, the pot cover 10 is in a locked position when the pot teeth are buckled with the cover teeth 131, the pot cover 10 is in an unlocked position when the pot teeth are separated from the cover teeth 131, and the cover opening member 20 and the lever structure 40 are pivotally arranged on the inner liner 12.

As shown in fig. 10 and 11, in the present embodiment, the face cover 11 is provided with an accommodating recess 111 for accommodating the pressure limiting valve 30, a side wall of the accommodating recess 111 is provided with an avoiding opening, a sealing member 70 is provided at the avoiding opening, a mounting hole is provided on the sealing member 70, a first end 411 of the lever body 41 can extend into the accommodating recess 111 from the mounting hole and abut against the pressure limiting valve 30, and a hole wall of the mounting hole is in interference fit with the lever body 41. Above-mentioned structure can increase the leakproofness, and mode steam gets into between face lid and the inside lining to influence the life of inside lining. In addition, when the lid is closed, the rotating block 212 is restored to the initial position, the protrusion 422 is separated from the rotating block 212, and the protrusion 422 can be restored to the initial position under the elastic restoring force of the sealing member 70 without jacking up the pressure limiting valve 30. In the structure, the sealing element 70 plays a role of sealing and a role of a resetting device, one part has multiple purposes, and the production cost is reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure cooking appliance, comprising:

a pan body;

the pot cover (10) is provided with a locking position locked on the pot body and an unlocking position which can be opened from the pot body, and an exhaust channel (1) is arranged on the pot cover (10);

a lid opening member (20) that drives the pot lid (10) to switch between the locked position and the unlocked position;

a pressure limiting valve (30) which can be associated with the exhaust duct (1);

the lever structure (40) comprises a lever body (41) and a matching structure (42), wherein the lever body (41) is arranged through a pivot (50) in a pivoted mode, the matching structure (42) is connected with the side edge of the lever body (41), the first end (411) of the lever body (41) is located on the same side of the pivot (50) as the matching structure (42), and under the condition that the opening cover part (20) is switched from the locking position to the unlocking position, the opening cover part (20) can upwards abut against the matching structure (42) to enable the first end (411) of the lever body (41) to abut against the pressure limiting valve (30) to enable the pressure limiting valve (30) to be far away from the exhaust channel (1);

the heating device is used for heating food in the pot body.

2. Pressure cooking appliance according to claim 1, characterised in that said engagement structure (42) comprises a base body (421) connected to said lever body (41) and a projection (422) provided on the side of said base body (421) close to said pivot (50), the lower surface of at least part of said projection (422) being lower than the lower surface of said base body (421) and being able to engage in abutment with said opening cover (20).

3. Pressure cooking appliance according to claim 2, characterized in that the base body (421) is integrally formed with the protrusion (422).

4. Pressure cooking appliance according to claim 2, characterized in that the lower surface of the bulge (422) comprises a downwardly protruding circular arc surface (423).

5. Pressure cooking appliance according to claim 2, characterised in that said lever body (41) is a first plate and said cooperating structure (42) is a second plate connected to a side edge of said first plate, said second plate having a side edge close to said pivot (50) bent and curled to form said projection (422).

6. Pressure cooking appliance according to claim 1, characterised in that said lever body (41) and said cooperating structure (42) are of a one-piece construction.

7. Pressure cooking appliance according to claim 1, characterised in that the lever structure (40) is made of a metallic material.

8. Pressure cooking appliance according to claim 1, characterised in that the opening member (20) comprises a pivotably arranged handle seat (21) and a handle (22) fixed to the handle seat (21), part of the handle seat (21) being located below the mating structure (42), the handle seat (21) being able to bear upwards against the mating structure (42) in the event of switching of the opening member (20) from the locked position to the unlocked position.

9. The pressure cooking appliance according to claim 8, wherein the handle holder (21) comprises a holder body (211) and a rotating block (212) disposed on a side wall of the holder body (211), an end surface of the rotating block (212) is a guide slope (213), an obtuse angle is formed between the guide slope (213) and an upper surface of the rotating block (212), and the engaging structure (42) can be engaged with the upper surface of the rotating block (212) under the guidance of the guide slope (213).

10. Pressure cooking appliance according to claim 9, characterized in that the upper surface of the rotating block (212) is provided with a recessed structure (214) in a position close to the seat body (211).

11. The pressure cooking appliance of claim 1, further comprising:

a venting button (60) opposite the second end (412) of the lever body (41) and located above the second end (412) of the lever body (41).

12. The pressure cooking appliance of claim 1, wherein the pot cover (10) comprises a surface cover (11), an inner liner (12) and an inner cover (13) which are sequentially arranged from outside to inside, a cover tooth (131) is arranged on the inner cover (13), a pot tooth matched with the cover tooth (131) is arranged on the pot body, the pot cover (10) is in the locking position under the condition that the pot tooth is buckled with the cover tooth (131), the pot cover (10) is in the unlocking position under the condition that the pot tooth is separated from the cover tooth (131), and the cover opening component (20) and the lever structure (40) are pivotally arranged on the inner liner (12).

13. The pressure cooking appliance according to claim 12, wherein the face cover (11) is provided with a receiving recess (111) for receiving the pressure limiting valve (30), a side wall of the receiving recess (111) is provided with an avoiding opening, a sealing member (70) is arranged at the avoiding opening, a mounting hole is arranged on the sealing member (70), the first end (411) of the lever body (41) can extend into the receiving recess (111) from the mounting hole and is abutted against the pressure limiting valve (30), and a hole wall of the mounting hole is in interference fit with the lever body (41).