CN215650501U

CN215650501U - Pressure cover body assembly and pressure cooker

Info

Publication number: CN215650501U
Application number: CN202121457617.8U
Authority: CN
Inventors: 吕挺; 陈锡雁; 梁郁庆; 马良
Original assignee: Zhejiang Tianxi Kitchen Appliance Co Ltd
Current assignee: Zhejiang Tianxi Kitchen Appliance Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-28
Anticipated expiration: 2031-06-29

Abstract

The present invention provides a pressure cap assembly comprising: the pressure cover is configured to be closed or separated from a pot body of a pressure cooker matched with the pressure cover; the steel ring is buckled and connected between the pressure cover and the pot body of the pressure cooker, can be rotatably arranged on the periphery of the pressure cover, and can be rotated towards a first rotating direction to enable the pressure cover to be separated from the pot body; a floating mechanism which can be arranged on the pressure cover in a lifting or falling way; the locking hook is rotatably arranged on the pressure cover; the steel ring is provided with a first flange, and when the lock hook is simultaneously contacted with the floating mechanism and the first flange, the steel ring is locked to move in a first rotating direction. The utility model also provides the electric pressure cooker. The cooker cover can be locked with the cooker body by judging the pressure in the cooker body during the heating cooking of the food materials by the pressure cooker or immediately after the cooking, and the potential safety hazard caused by forcibly opening the cooker cover by a user is avoided by judging the pressure in the cooker body and locking the cooker cover with the cooker body when the pressure in the cooker body exceeds an allowable value.

Description

Pressure cover body assembly and pressure cooker

Technical Field

The utility model relates to the field of manufacturing and processing of electric appliances, in particular to a pressure cover body assembly and a pressure cooker.

Background

Pressure cookers are common cooking utensils in daily life, and are popular among consumers due to the characteristics of quick and efficient cooking. In recent years, with the progress of technology, a pressure type electric cooker, namely an electric pressure cooker, which is more energy-saving and safer, has been developed, and has basically replaced the conventional pressure cooker at present.

The principle of cooking food in both the traditional pressure cooker and the current popular electric pressure cooker (hereinafter collectively referred to as "pressure cooker") is based on the physical phenomenon that the boiling point of liquid rises along with the rise of air pressure, and by applying pressure to water, the water can boil after reaching a higher temperature, so that the food stewing efficiency is accelerated. In order to ensure safety, the cover and the cooker body are required to be in a sealing state before the pressure cooker starts heating operation. Wherein the sealing and releasing of the lid and the body are achieved by a rotational movement relative to each other.

In the electric pressure cooker of the prior art, for example, during the cooking of the food material by heating or immediately after the cooking, the pressure in the cooker body is maintained at a high level, which enables the fastening ring fastening rib in the cooker cover and the cooker body fastening rib of the cooker body to be pressed up and down. In this case, when a user tries to rotate to open the lid with a normal or small force, the frictional force between the lid body and the lid body becomes large due to a high up-down pressing force, so that the lid is not easily opened in general. However, if the user tries to open the lid by rotating with a large force due to carelessness or carelessness, the lid may be opened due to a large force applied by the user even though the relative friction between the lid and the lid is large, and the high-pressure gas in the pot may be instantly gushed out or even ejected to injure the user, thereby causing a great safety hazard.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a pressure cover assembly and a pressure cooker, which can prevent potential safety hazards caused by users forcibly opening the cover by determining the pressure inside the cooker body during the cooking process or immediately after the cooking process, and locking the cover with the cooker body when the pressure inside the cooker body exceeds an allowable value.

In one aspect of the present invention, there is provided a pressure cover assembly comprising:

the pressure cover is configured to be closed or separated from a pot body of a pressure cooker matched with the pressure cover;

the steel ring is connected between the pressure cover and the pot body of the pressure cooker in a buckling manner, can be rotatably arranged on the periphery of the pressure cover, and can be rotated towards a first rotating direction to enable the pressure cover to be separated from the pot body;

a floating mechanism provided to be raisable or lowerable at the pressure cover; and

the locking hook is rotatably arranged on the pressure cover;

the steel ring is provided with a first flange, and when the lock hook is simultaneously contacted with the floating mechanism and the first flange, the steel ring is locked to move towards the first rotating direction.

Preferably, the pressure cover assembly further comprises:

the first end of the pin shaft is fixedly arranged between the floating mechanism on the pressure cover and the steel ring and is rotatably connected to the central position of the lock hook;

the first end of the lock hook is fixedly connected with the steel ring, and the second end of the lock hook can be abutted to the floating mechanism in the lifting state.

Preferably, the pressure cover assembly further comprises:

the cover body is hinged with the pot body of the pressure cooker, is connected with the pressure cover and can drive the pressure cover to be closed or separated from the pot body of the pressure cooker when rotating relative to the pot body of the pressure cooker;

the cover body is provided with a first fixing hole for inserting the second end of the pin shaft.

Preferably, the pressure cover assembly further comprises:

the pressing plate is fixedly arranged on the pressure cover and provided with a second fixing hole for inserting the first end of the pin shaft;

the pressure plate is provided with a pressure cover, and the pressure cover is provided with a floating mechanism which is arranged on the pressure plate.

Preferably, the floating mechanism includes:

the upper end of the float valve is slidably arranged on the pressure cover, the lower end of the float valve extends into the pot body, and the float valve is configured to control the float valve to rise or fall according to the pressure difference between the gravity of the float valve and the inside of the pot body;

wherein, the float valve still includes the pressure release hole, the pressure release hole runs through to be seted up between the upper end and the lower extreme of float valve, and the aperture of pressure release hole is set up to: so that the float valve can be in a lifting state when the pressure in the pot body is higher than the set pressure.

Preferably, the pressure cover assembly further comprises:

and the air-frying assembly is fixedly arranged in the cover body and is configured to blow hot air into the pot body of the pressure cooker so as to realize air-frying cooking of food in the pot body.

Preferably, a gap is formed between the steel ring and the pressure cover, the first flange is bent from the edge of the steel ring to one side of the pressure cover, the locking hook partially extends into the gap between the steel ring and the pressure cover, and the floating mechanism is located within the rotation range of the locking hook.

Preferably, the steel ring has a second rotation direction for closing the pressure cover and the pot body, the steel ring is provided with a second flange, and when the locking hook is simultaneously contacted with the floating mechanism and the second flange, the movement of the steel ring towards the second rotation direction is locked.

Preferably, the steel ring and the outer edge of the pot body are connected with each other through the notches which are staggered with each other, so that the steel ring and the pot body can be connected with each other when the notches are opposite, and can be separated from each other when the notches are staggered.

In another aspect of the utility model, there is provided a pressure cooker comprising a pressure cover assembly according to any one of the preceding embodiments.

Therefore, the floating mechanism and the locking hook matched with the floating mechanism are arranged, so that the cooker cover and the cooker body can be locked when the pressure cooker judges the pressure in the cooker body and the pressure in the cooker body exceeds an allowable value during heating and cooking food materials or just after cooking, and potential safety hazards caused by forced opening of the cooker cover by a user are avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.

FIG. 1 is a schematic view of a pressure cover assembly of the present invention in a dropped state;

FIG. 2 is an enlarged view of a portion of circle A in FIG. 1;

FIG. 3 is a schematic diagram of the pressure cover assembly of the present invention in a raised configuration;

FIG. 4 is an enlarged view of a portion of circle B of FIG. 3;

FIG. 5 is a schematic structural view of the electric pressure cooker of the present invention in an exploded state;

fig. 6 is a structural schematic diagram of the pressure cover assembly in an exploded state according to the present invention.

Description of reference numerals:

1-a pressure cover; 2-a pot body; 3-steel ring; 31-a first flange; 32-a second flange; 4-a floating mechanism; 41-a float valve; 42-pressure relief holes; 5-a latch hook; 6-a pin shaft; 7-a cover body; 71-a first fixation hole; 8-pressing a plate; 81-second fixation hole; 82-open pore structure.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the utility model, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

According to fig. 1-6:

in one aspect of the utility model, a pressure cap assembly is provided comprising a pressure cap 1 and a steel ring 3. Wherein the pressure cover 1 is configured to be closed or separated with a pot body 2 of a pressure cooker matched with the pressure cover; the steel ring 3 is buckled and connected between the pressure cover 1 and the pot body 2 of the pressure cooker, is rotatably arranged on the periphery of the pressure cover 1, and can rotate towards the first rotating direction to enable the pressure cover 1 to be separated from the pot body 2.

The pressure cover assembly has a higher working pressure during cooking than a cover assembly of a general cooking appliance, which puts high demands on the connection strength and sealing performance of the pressure cover assembly. Therefore, the pressure cover body assembly realizes the closing or disconnecting connection between the pressure cover 1 and the pot body 2 by arranging the steel ring 3 as an intermediate connecting structure, so as to ensure the connecting strength between the pressure cover 1 and the pot body 2. And the pressure cover 1 can be separated from the pot body 2 by controlling the steel ring 3 to rotate towards the first rotating direction, and the relative movement direction of the closing or separating of the pressure cover 1 and the pot body 2 is basically vertical to the pressure direction in the pot body 2 by the rotating opening mode, so that the influence of high pressure on the closing or separating of the pressure cover 1 and the pot body 2 is reduced.

When a user tries to rotate the pressure cover assembly to open with normal or small force, the friction between the pressure cover 1 and the pot body 2 becomes large due to the high up-down pressing force, so that the pressure cover assembly is not easily opened in general. However, if the user tries to rotate the pressure cover assembly with a large force due to carelessness or carelessness, the relative friction between the pressure cover 1 and the pot body 2 is large, but the pressure cover assembly may still be opened due to the large force applied by the user, and the high-pressure gas in the pot may be instantly gushed out or even sprayed out to hurt the user, thereby causing great safety hazard.

In view of the above, as shown in fig. 2 and 4, on the basis of the structure of the pressure cover body assembly, the pressure cover body assembly further includes a floating mechanism 4 and a locking hook 5, wherein the floating mechanism 4 is disposed on the pressure cover 1 in a manner of being capable of rising or falling; the latch hook 5 is rotatably provided to the pressure cover 1. The steel ring 3 is provided with a first flange 31, and when the locking hook 5 is simultaneously contacted with the floating mechanism 4 and the first flange 31, the steel ring 3 is locked to move towards the first rotating direction.

From this, detect the pressure in the pot body 2 with relocation mechanism 4, and as the switch that pressure triggered, can carry out the locking to the motion of first direction of rotation through latch hook 5 to steel ring 3, thereby can heat during cooking or when the culinary art just ends to eating material at the pressure cooker, through judging the pressure size in the pot body 2, and when the pressure size in the pot body 2 exceeded the admissible value, lock the pot cover with the pot body 2 mutually, avoid opening the potential safety hazard that the pot cover produced because of the user forces. And, with the pressure in the pot body 2 as the judgement foundation, and with the rising or falling of floating mechanism 4 as the locking action, have higher reliability and lower realization cost than the automatically controlled mode.

In the present invention, the floating mechanism 4 is used for effectively locking the steel ring 3 by relying on the smooth rotation of the locking hook 5, and for this, as shown in fig. 2 and 4, preferably, the pressure cover assembly further includes a pin 6, and a first end of the pin 6 is fixedly disposed between the floating mechanism 4 on the pressure cover 1 and the steel ring 3 and rotatably connected to a central position of the locking hook 5. The first end of the locking hook 5 is fixedly connected with the steel ring 3, and the second end of the locking hook 5 can be abutted against the floating mechanism 4 in a lifting state.

The latch hook 5 uses the pin shaft 6 at the central position as a rotating shaft, the two ends of the latch hook are respectively connected with the steel ring 3 and the floating mechanism 4, the lever principle can be utilized, the floating mechanism 4 farther away from the pin shaft 6 can lock the steel ring 3 closer to the pin shaft 6 by using smaller butt acting force, the stability of locking action is improved, the transverse force borne by the floating mechanism 4 when locking is carried out can be reduced, the deformation of the floating mechanism 4 is reduced, and the rising or falling of the floating mechanism 4 can be ensured to smoothly act.

In order to fix the pin shaft 6, preferably, as shown in fig. 5 and 6, the pressure cover assembly further includes a cover body 7, the cover body 7 is hinged to the pot body 2 of the pressure cooker, and is connected to the pressure cover 1, so that when the cover body 7 rotates relative to the pot body 2 of the pressure cooker, the pressure cover 1 is driven to close or separate from the pot body 2 of the pressure cooker; wherein, the cover body 7 is provided with a first fixing hole 71 for inserting the second end of the pin shaft 6. As shown in fig. 1 and 3, preferably, the pressure cover assembly further includes a pressure plate 8, the pressure plate 8 is fixedly disposed on the pressure cover 1, and a second fixing hole 81 is formed for inserting the first end of the pin 6.

Thus, the pin shaft 6 can be fastened and connected from the second end and the first end of the pin shaft 6 through the first fixing hole 71 of the cover 7 and the second fixing hole 81 of the pressure plate 8, and the pin shaft 6 and the latch hook 5 can be secured in rotational connection. And the pressing plate 8 is provided with an opening structure 82, so that the floating mechanism 4 extends out of the opening structure to the side of the pressing plate 8 far away from the pressure cover 1.

In order to realize the lifting or falling of the floating mechanism 4, it is preferable that the floating mechanism 4 includes a float valve 41, and the float valve 41 is slidably disposed at an upper end of the pressure cover 1 and has a lower end extending into the inside of the pot body 2, and is configured to control the lifting or falling of itself according to a pressure difference between its own weight and the inside of the pot body 2.

In order to prevent the float valve 41 from being damaged by the excessive pressure in the pot body 2, the float valve 41 further includes a pressure relief hole 42, the pressure relief hole 42 is penetratingly opened between the upper end and the lower end of the float valve 41, and the hole diameter of the pressure relief hole 42 is set as: so that the float valve 41 can be in a raised state when the inside of the pot 2 is greater than a set pressure.

The principle of setting the size of the pressure release hole 42 is explained as follows: when the diameter of the pressure release hole 42 is too large, the surface area of the lower end of the float valve 41 is small, and thus the pressure applied to the float valve 41 in the pot 2 is small (pressure is a pressure surface area), and the float valve 41 can rise only when the pressure in the pot 2 is large, so that the locking action of the float mechanism 4 to the steel ring 3 is delayed. Correspondingly, when the diameter of the pressure relief hole 42 is too small, the surface area of the lower end of the float valve 41 is larger, so that the pressure applied to the float valve 41 in the pot body 2 is larger, the float valve 41 is lifted up when the pressure in the pot body 2 is smaller, and the pressure cover body assembly is difficult to open after cooking is completed, thereby affecting the normal use of a user.

In order to improve the functionality of the pressure cover assembly, it is preferable that the pressure cover assembly further includes a blank frying assembly, the blank frying assembly is fixedly disposed inside the cover 7 and configured to blow hot air into the pot body 2 of the pressure cooker, so as to achieve blank frying cooking of food in the pot body 2. The typical air-frying assembly is composed of a motor, a hot air fan, a cooling fan and a heating pipe, wherein the motor drives the hot air fan and the cooling fan to rotate, the hot air fan blows hot air near the heating pipe into the pot body 2 to air-fry and cook food, and the cooling fan cools electrical elements such as the motor.

In order to make the structure of the pressure cover assembly more compact, as shown in fig. 2 and 4, preferably, there is a gap between the steel ring 3 and the pressure cover 1, the first flange 31 is bent from the edge of the steel ring 3 to the side of the pressure cover 1, the locking hook 5 partially extends between the steel ring 3 and the pressure cover 1, and the floating mechanism 4 is located within the rotation range of the locking hook 5. The locking hook 5 thereby comes into contact with the first flange 31 in the gap between the steel ring 3 and the pressure cover 1, and the float 4 is located in the rotational range of the locking hook 5, so that the locking hook 5 can be brought into simultaneous contact with the first flange 31 and the float 4 with a small overall size.

Preferably, the steel ring 3 has a second rotation direction for closing the pressure cover 1 with the pot body 2, the steel ring 3 is provided with a second flange 32, and when the locking hook 5 is simultaneously contacted with the floating mechanism 4 and the second flange 32, the steel ring 3 is locked to move in the second rotation direction. Through setting up second flange 32, can make pressure lid 1 not continue to rotate after reaching in place for pot body 2 is rotatory, make pressure lid 1 and pot body 2 reach good sealed effect under the rotation angle of predetermineeing.

In order to make the connection between the steel ring 3 and the pot body 2 more secure, preferably, the steel ring 3 and the outer edge of the pot body 2 are connected with each other through the notches which are staggered with each other, so that the steel ring 3 and the pot body 2 can be connected with each other when the notches are opposite and separated from each other when the notches are staggered with each other. The crisscross notch of each other between the outer edge of steel ring 3 and the pot body 2 can be followed circumference and evenly distributed and be the annular, can make the effort between steel ring 3 and the pot body 2 evenly act on whole steel ring 3 and whole pot body 2 outer edge from this, guarantees that steel ring 3 and pot body 2 outer edge structural integrity non-deformable.

Therefore, the floating mechanism 4 and the locking hook 5 matched with the floating mechanism 4 are arranged, so that the cooker cover and the cooker body 2 can be locked by judging the pressure in the cooker body 2 during the heating cooking of the pressure cooker or immediately after the cooking, and the potential safety hazard caused by the forced opening of the cooker cover by a user is avoided by judging the pressure in the cooker body 2 and locking the cooker cover and the cooker body 2 when the pressure in the cooker body 2 exceeds an allowable value.

So far, some specific embodiments of the present invention have been described in detail by way of examples, but it should be understood by those skilled in the art that the above examples are only for illustrative purposes and are not intended to limit the scope of the present invention. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A pressure cap assembly, comprising:

the pressure cover (1) is configured to be closed or separated with a pot body (2) of a pressure cooker matched with the pressure cover;

the steel ring (3) is connected between the pressure cover (1) and the pot body (2) of the pressure cooker in a buckling mode, can be rotatably arranged on the periphery of the pressure cover (1), and can be rotated towards a first rotating direction to enable the pressure cover (1) and the pot body (2) to be separated;

a floating mechanism (4) provided to be raisable or lowerable in the pressure cover (1); and

the locking hook (5) is rotatably arranged on the pressure cover (1);

wherein the steel ring (3) is provided with a first flange (31), and when the locking hook (5) is simultaneously contacted with the floating mechanism (4) and the first flange (31), the steel ring (3) is locked to move towards the first rotating direction.

2. The pressure cover assembly of claim 1, further comprising:

the first end of the pin shaft (6) is fixedly arranged between the floating mechanism (4) on the pressure cover (1) and the steel ring (3) and is rotatably connected to the central position of the lock hook (5);

the first end of the lock hook (5) is fixedly connected with the steel ring (3), and the second end of the lock hook (5) can be abutted to the floating mechanism (4) in a lifting state.

3. The pressure cover assembly of claim 2, further comprising:

the cover body (7) is hinged with the pot body (2) of the pressure cooker, is connected with the pressure cover (1), and can drive the pressure cover (1) to be closed or separated from the pot body (2) of the pressure cooker when rotating relative to the pot body (2) of the pressure cooker;

the cover body (7) is provided with a first fixing hole (71) for inserting the second end of the pin shaft (6).

4. The pressure cover assembly of claim 2, further comprising:

the pressing plate (8) is fixedly arranged on the pressure cover (1), is provided with a second fixing hole (81) and is used for being inserted into the first end of the pin shaft (6);

the pressure plate (8) is further provided with an opening structure (82) so that the floating mechanism (4) extends out of the opening structure to the side, away from the pressure cover (1), of the pressure plate (8).

5. Pressure cover assembly according to claim 4, wherein the floating mechanism (4) comprises:

the upper end of the float valve (41) is slidably arranged on the pressure cover (1), the lower end of the float valve extends into the pot body (2), and the float valve is configured to control the self-lifting or the self-falling according to the pressure difference between the self-gravity and the inside of the pot body (2);

wherein the float valve (41) further comprises a pressure relief hole (42), the pressure relief hole (42) is penetratingly opened between the upper end and the lower end of the float valve (41), and the aperture of the pressure relief hole (42) is set as: so that the float valve (41) can be in a lifting state when the pressure in the pot body (2) is higher than the set pressure.

6. The pressure cover assembly of claim 3, further comprising:

the air-frying assembly is fixedly arranged inside the cover body (7) and is configured to blow hot air into the pot body (2) of the pressure cooker so as to realize air-frying cooking of food in the pot body (2).

7. The pressure cover assembly according to claim 4, wherein a gap is formed between the steel ring (3) and the pressure cover (1), the first flange (31) is bent from the edge of the steel ring (3) to one side of the pressure cover (1), the latch hook (5) partially extends between the steel ring (3) and the pressure cover (1), and the floating mechanism (4) is located within the rotation range of the latch hook (5).

8. Pressure cover assembly according to claim 7, characterized in that the steel ring (3) has a second direction of rotation closing the pressure cover (1) with the pot (2), the steel ring (3) being provided with a second flange (32), the movement of the steel ring (3) to the second direction of rotation being locked when the locking hook (5) is simultaneously in contact with the floating mechanism (4) and the second flange (32).

9. Pressure cover assembly according to claim 1, characterized in that the steel ring (3) and the outer rim of the pan body (2) are interconnected by means of mutually staggered notches, so that the steel ring (3) and the pan body (2) can be interconnected when opposite notches and disconnected when staggered.

10. A pressure cooker including a pressure cover assembly according to any one of claims 1 to 9.