CN107912971B

CN107912971B - Pressure cooker and outer cooker thereof

Info

Publication number: CN107912971B
Application number: CN201610884823.4A
Authority: CN
Inventors: 龚俭龙; 何柏锋; 喻源
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2016-10-09
Filing date: 2016-10-09
Publication date: 2023-04-11
Anticipated expiration: 2036-10-09
Also published as: CN107912971A

Abstract

The invention discloses a pressure cooker and an outer cooker thereof, wherein the outer cooker comprises an outer cooker body and a plurality of cooker teeth, the upper end of the outer cooker body is open, the cooker teeth are arranged at the upper end of the outer cooker body, the cooker teeth comprise at least one pair of cooker teeth, the pair of cooker teeth comprise two cooker teeth which are oppositely arranged relative to the center of an upper end opening of the outer cooker body, and the free ends of the two cooker teeth in the pair of cooker teeth are provided with notches. The outer pot of the pressure cooker reduces the probability of separation of the pot cover and the pot body by enhancing the strength of the pot teeth.

Description

Pressure cooker and outer cooker thereof

Technical Field

The invention relates to the technical field of domestic electric appliances, in particular to a pressure cooker and an outer cooker thereof.

Background

The pressure cooker comprises a cooker body and a cooker cover for covering the cooker body, wherein the cooker body comprises a cooker shell, an outer cooker arranged in the cooker shell and an inner cooker arranged in the outer cooker. Usually, a plurality of pot teeth are convexly arranged at the upper end of the outer pot, the pot cover is provided with a buckle, and after the pot cover covers the pot body, the pot teeth are meshed with the buckle, so that the pot cover is not separated from the pot body in a heating and high-pressure state of the pressure cooker.

As shown in fig. 1, fig. 1 discloses a structural schematic view of an outer pot 100 'of a conventional pressure cooker, in order to facilitate a user to find an aligned opening of a pot cover and a pot body 1', a notch 21 'is added on one of pot teeth 2' to serve as a fool-proof mark. However, during use it was found that: the pressure cooker lid will be separated from the cooker body under the high pressure state, and the separation firstly occurs on the cooker teeth 2' opposite to the cooker teeth 2' provided with the notches 21' under the high pressure state.

Disclosure of Invention

The invention mainly aims to provide an outer pot of a pressure cooker, aiming at enhancing the strength of pot teeth so as to reduce the probability of separation of a pot cover and a pot body.

In order to achieve the above object, the present invention provides an outer pot of a pressure cooker, comprising:

the upper end of the outer pot body is arranged in an opening shape; and the number of the first and second groups,

a plurality of pot teeth, locate the upper end of the outer pot body, a plurality of pot teeth include an at least pot tooth pair, the pot tooth pair includes two relatively the last port center of the outer pot body is the pot tooth of relative setting, all be equipped with the breach on two pot teeth of pot tooth pair, this breach is by corresponding the outside edge middle part of pot tooth is towards extending near the center department of the pot body.

Preferably, the upper end of the outer pot body is outwards convexly provided with an annular flange all around, and the plurality of pot teeth are formed by outwards extending the annular flange.

Preferably, the annular flange, the pot teeth and the lower edge of the notch are all bent downwards to form vertical ribs, and the annular flange, the pot teeth and the vertical ribs of the lower edge of the notch are connected into a whole.

Preferably, the outward dimension of the annular flange is 5 to 12mm.

Preferably, the convex size of the pot teeth is 10-20 mm, and the depth of the notch is 4-8 mm.

Preferably, the central angle corresponding to the pot teeth is 30-45 degrees, the central angle corresponding to the gap between the adjacent pot teeth is 15-30 degrees, and the central angle corresponding to the notch is 10-15 degrees.

Preferably, the notch is gradually narrowed in the direction close to the center of the upper port.

Preferably, the plurality of pot teeth comprises a plurality of said pairs of pot teeth.

Preferably, the number of the pot teeth is 2N, the logarithm of the pair of pot teeth is N, and N is a natural number greater than 1.

Preferably, the corners of the notch are both in arc transition arrangement.

Preferably, the pot teeth in the pot teeth pair are divided into two sub pot teeth by the notch, and the sub pot teeth are arranged in a gradually reducing manner in the direction away from the outer pot body, so that the sub pot teeth and the break angles between the outer pot body and the notch are arranged in an obtuse angle manner.

The invention also proposes a pressure cooker comprising an outer cooker, said outer cooker comprising:

the pot teeth are arranged at the upper end of the outer pot body and comprise at least one pair of pot teeth, the pair of pot teeth comprises two opposite pot teeth, the centers of the upper ports of the outer pot body are oppositely arranged, notches are arranged on the two pot teeth in the pair of pot teeth, and the notches extend from the middle parts of the outer side edges of the corresponding pot teeth to the centers close to the pot body.

In the technical scheme provided by the invention, at least two of the pot teeth with the notches are arranged in pairs, and the two pot teeth with the notches have the same strength, so that the two pot teeth with the notches arranged in pairs have balanced strength, when the pot cover covers the pot body, the buckles arranged on the pot cover are meshed with the pot teeth, the pressure in the pressure pot is continuously increased along with the heating and cooking process of the pressure pot, the upward acting force of the buckles on the pot teeth is continuously increased, however, the two pot teeth with the notches arranged in pairs have balanced strength, and the problem that one of the two pot teeth is seriously deformed and the other one of the two pot teeth is slightly deformed to cause tripping cannot occur, namely, the probability that the pot cover is separated from the pot body is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an outer pot of a conventional pressure cooker;

FIG. 2 is a schematic structural view of an embodiment of an outer pot of a pressure cooker according to the present invention;

FIG. 3 is a schematic structural view of another embodiment of an outer pot of a pressure cooker according to the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

fig. 5 is a schematic top view of fig. 3.

Description of the prior art reference numbers:

reference numerals	Name (R)	Reference numerals	Name (R)
				100′	Outer pot of pressure cooker	2′	Pot tooth
1′	Pot body	21′	Gap

The invention is illustrated by the reference numerals:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Outer pot of pressure cooker	2a	Son pot tooth
1	Pot body	21	Gap
				2	Pot tooth	3	Annular flange

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The pressure cooker comprises a cooker body and a cooker cover covering the cooker body, wherein the cooker body comprises a cooker shell, an outer cooker arranged in the cooker shell and an inner cooker arranged in the outer cooker. Fig. 2 to 5 show an embodiment of an outer pot of a pressure cooker according to the present invention.

Referring to fig. 2 to 3, the pressure cooker outer pan 100 (the pressure cooker outer pan 100 is usually made of metal, but not limited to metal), provided by the present invention, includes an outer pan body 1 with an open upper end, and a plurality of pan teeth 2 protruding from the upper end of the outer pan body 1, wherein the plurality of pan teeth 2 includes at least one pan tooth pair, the pan tooth pair includes two pan teeth 2 oppositely disposed with respect to the center of the upper end of the outer pan body 1, two pan teeth 2 of the pan tooth pair are both provided with a notch 21, and the notch 21 extends from the outer edge of the middle portion of the pan teeth 2 to the center of the pan body 1.

As can be known from the "notch effect" in material mechanics, the strength of the pot teeth 2 provided with the notches 21 is enhanced, as shown in fig. 1, in the prior art, only one pot tooth 2 'is provided with the notch 21', so that the strength of the other pot tooth 2 'opposite to the pot tooth 2' provided with the notch 21 'is inconsistent, that is, the strength of the pot tooth 2' provided with the notch 21 'is stronger and the strength of the other pot tooth 2' is weaker, so that the strength of the two pot teeth 2 'arranged in pair is unbalanced, when the pot cover covers the pot body, the buckle arranged on the pot cover is engaged with the pot teeth 2', and along with the progress of heating and cooking of the pressure pot, the pressure in the pressure pot is continuously increased, the upward acting force exerted by the buckle of the pot teeth 2 'is continuously increased, however, because the strength of the two pot teeth 2' arranged in pair is unbalanced, that is, the other pot tooth 2 'opposite to the notch 21' is more easily warped upwards and then disengaged from the buckle due to the weaker strength.

In the invention, at least two of the pot teeth 2 with the notches 21 in the plurality of pot teeth 2 are arranged in pairs, and the two pot teeth 2 with the notches 21 have the same strength, so that the two pot teeth 2 with the notches 21 arranged in pairs have the balanced strength, when the pot cover covers the pot body, the buckles arranged on the pot cover are meshed with the pot teeth 2, the pressure in the pressure cooker is continuously increased along with the progress of heating and cooking of the pressure cooker, the upward acting force of the buckles on the pot teeth 2 is continuously increased, however, because the two pot teeth 2 with the notches 21 arranged in pairs have the balanced strength, the problem that one of the two pot teeth is seriously deformed and the other one of the two pot teeth is slightly deformed to cause tripping does not exist. Even if the deformation is also the balanced deformation of the two pot teeth 2 in the pot tooth pair, the relative deformation can be smaller, and the buckling connection between the buckle and the pot teeth 2 cannot be influenced.

The pot teeth 2 with the notches 21 in the plurality of pot teeth 2 are preferably pairwise arranged to form the pair of pot teeth, so that the pot teeth 2 opposite to the pot teeth 2 with the notches 21 are all the pot teeth 2 with the notches 21, obviously, the design is not limited to this, and some pot teeth 2 with the notches 21 may be pairwise arranged. The number of pairs of the pot teeth is not particularly limited, and may be different according to actual needs, as shown in fig. 2, in an embodiment of the present invention, the number of pairs of the pot teeth is one, it is obvious that the present design is not limited thereto, the number of pairs of the pot teeth is multiple, as shown in fig. 3, in another embodiment of the present invention, the plurality of pot teeth 2 are all provided with notches 21 and are arranged in pairs, that is, the number of the plurality of pot teeth 2 is 2N, the number of pairs of the pot teeth is N, N is a natural number greater than 1, and N is 3 in fig. 3, at this time, the strength of the plurality of pot teeth 2 is optimal, and deformation does not easily occur.

Generally speaking, in order to reinforce the strength of the upper end of the outer pot body 1, an annular flange 3 arranged around the upper port is convexly arranged on the upper end of the outer pot body 1, and then, the plurality of pot teeth 2 extend from the annular flange 3, and generally, the plurality of pot teeth 2 are uniformly distributed. The outer pot 100 of pressure cooker can adopt the casting shaping to form, of course the outer pot 100 of pressure cooker also can adopt stamping forming to make, then this moment, annular flange 3 with pot tooth 2 be by turning over turn over form in the flange structure of the upper end of the outer pot body 1.

In addition, in order to further enhance the strength of the pot teeth 2, in other embodiments, the lower edges of the annular flange 3, the plurality of pot teeth 2 and the notch 21 are all bent downwards to form vertical ribs, and the annular flange 3, the plurality of pot teeth 2 and the vertical ribs on the notch 21 are connected into a whole to form a continuous convex structure.

In the embodiment of the present invention, referring to fig. 4, the pot teeth 2 in the pair of pot teeth are divided into two sub pot teeth 2a by the notch 21, and the sub pot teeth 2a are arranged in a tapered manner in a direction away from the outer pot body 1, so that the folding angles R1 and R2 between the sub pot teeth 2a and the outer pot body 1 and the notch 21 are both arranged in an obtuse angle manner. Compared with the prior art, the bending angle of the buckling teeth is increased, and the bending strength of the vertical ribs of the buckling teeth is further increased.

In the embodiment of the present invention, referring to fig. 5, the existence of the annular flange 3 increases the strength of the upper end of the outer pressure cooker 100, and theoretically, the larger the outward protruding dimension of the annular flange 3 is, the higher the strength of the upper end of the outer pressure cooker 100 is, but since the plurality of cooker teeth 2 are provided on the annular flange 3, if the outward protruding dimension of the annular flange 3 is too large, the plurality of cooker teeth 2 are too large with respect to the outward protruding dimension of the outer wall of the outer pressure cooker 100, and accordingly the strength is weakened, and for this reason, in the embodiment of the present invention, the outward protruding dimension L1, L1= 5-12 mm of the annular flange 3 is.

The pot teeth 2 need to be buckled with buckles arranged on the pot cover, in order to ensure that the pot teeth 2 and the buckles have enough buckling amount, the outward protruding size L of the pot teeth 2 needs to be large enough, meanwhile, the outward protruding size of the pot teeth 2 is overlarge, and accordingly, the strength of the pot teeth 2 is not enough, in the embodiment of the invention, the outward protruding size L2 and L2 of the pot teeth 2 are 10-20 mm.

The strengthening degree of the pot teeth 2 provided with the notches 21 is also related to the depth of the notches 21, and theoretically, the strengthening degree is stronger as the depth of the notches 21 is deeper, however, the pot teeth 2 corresponding to the deeper depth of the notches 21 become brittle and easily break, and in the embodiment of the invention, the depth L3, L3= 4-8 mm of the notches 21 is ensured in a proper range.

In order to ensure that the fastening area between the pot teeth 2 and the buckle of the pot cover is sufficiently large, the central angles D1, D1= 30-45 corresponding to the pot teeth 2, the central angles D2, D2= 15-30 corresponding to the gaps between the adjacent pot teeth 2, and the central angles D3, D3= 10-15 corresponding to the gaps 21, in the embodiment of the present invention, in order to ensure that the fastening area between the pot teeth 2 and the buckle of the pot cover is sufficiently large, the central angles D1, D1= 30-45 corresponding to the pot teeth 2 are provided, and the central angles D3, D3= 10-15 corresponding to the gaps 21.

The strengthening degree of the pot teeth 2 with the notches 21 is also related to the shape of the notches 21. In the embodiment of the present invention, referring to fig. 4 and 5, in order to further strengthen the strengthening effect, the notches 21 are gradually narrowed in the direction close to the center of the upper port. Moreover, the corners of the notch 21 are all in arc transition arrangement.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An outer pot of a pressure cooker, comprising:

the upper end of the outer pot body is arranged in an opening shape; and (c) a second step of,

the pot teeth are arranged at the upper end of the outer pot body and comprise at least one pair of pot teeth, the pair of pot teeth comprises two opposite pot teeth, the center of the upper port of the outer pot body is oppositely arranged, one of the two pot teeth in the pair of pot teeth is provided with a notch, and the notch extends from the middle part of the outer edge of the corresponding pot tooth to the center close to the pot body.

2. The outer pot of claim 1, wherein an annular flange is convexly formed on the upper end of the outer pot body outward from the periphery, and the plurality of pot teeth are formed by extending outward from the annular flange.

3. The outer pot of claim 2, wherein the annular flange, the plurality of pot teeth, and the lower edge of the gap are all bent downward to form vertical ribs, and the annular flange, the plurality of pot teeth, and the vertical ribs of the lower edge of the gap are connected into a whole.

4. The outer pressure cooker cover of claim 2, wherein said annular flange has an outward projection dimension of 5 to 12mm.

5. The outer pot of claim 1, wherein the protruded size of the pot teeth is 10-20 mm, and the depth of the notch is 4-8 mm.

6. The outer pot of claim 1, wherein the central angle corresponding to the pot teeth is 30-45 °, the central angle corresponding to the gap between the adjacent pot teeth is 15-30 °, and the central angle corresponding to the notch is 10-15 °.

7. The outer pressure cooker as defined in claim 1, wherein said notch is tapered in a direction toward a center of said upper port.

8. The pressure cooker outer pan of claim 1, wherein the plurality of pan teeth comprises a plurality of said pan tooth pairs.

9. The outer pressure cooker as defined in claim 8, wherein the number of said plurality of cooking teeth is 2N, the number of pairs of said cooking teeth is N, and N is a natural number greater than 1.

10. The outer cooker of claim 1, wherein the corners of the notch are rounded.

11. The outer pot of claim 1, wherein the pair of pot teeth is divided into two sub-pot teeth by the gap, and the sub-pot teeth are arranged in a gradually reducing manner in a direction away from the outer pot body, so that the break angles between the sub-pot teeth and the outer pot body and the gap are all arranged in an obtuse angle.

12. A pressure cooker comprising an outer cooker, wherein the outer cooker is the pressure cooker outer cooker of any one of claims 1 to 11.