A cooking appliance with a voltage regulating mechanism installed on the inner cover

Abstract

The present invention belongs to the technical field of kitchen appliances, and particularly relates to a cooking appliance with a pressure regulating mechanism installed on an inner lid, which includes a heat preservation cover plate. An air outlet hole is provided on the heat preservation cover plate, and an air outlet cavity is provided between the heat preservation cover plate and the inner lid; the air outlet hole is communicated with the air outlet cavity; the pressure regulating mechanism includes a pressure regulating valve and a seal. The pressure regulating valve is installed on the inner lid and is located directly above the air outlet hole. The seal is arranged between the air outlet hole and the pressure regulating valve, and the seal is used to isolate the pressure regulating valve from the air outlet cavity, so that the steam generated by heating the cooking appliance bypasses the pressure regulating valve and is discharged from the air outlet cavity to the outside of the cooking appliance. By installing the pressure regulating valve on the inner lid, the steam generated by heating in the inner pot of the cooking appliance is directly discharged through the air outlet cavity between the inner lid and the heat preservation cover plate, without passing through the pressure regulating valve. No dirt remains on the pressure regulating valve, and there is no need to clean the pressure regulating valve. At the same time, there is no pressure regulating valve on the heat preservation cover plate, making the heat preservation cover plate easier to clean.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, in particular to a cooking utensil in which a pressure regulating mechanism is installed on an inner cover. Background Art

[0002] like Figure 1 As shown, in the prior art, the pressure regulating valve 1 of a cooking appliance such as an electric rice cooker or pressure cooker is mounted on a heat-insulating cover plate 2 and located in the space between the heat-insulating cover plate and the inner container of the cooking appliance. Steam generated by heating in the inner container of the cooking appliance needs to be discharged to the outside of the cooking appliance through the pressure regulating valve, which causes dirt to accumulate on the pressure regulating valve. Furthermore, components such as the spring and small sealing ring installed inside the pressure regulating valve are not removable, making it difficult to clean the dirt on the pressure regulating valve. Although the heat-insulating cover plate assembly can be disassembled for cleaning, the complex internal structure of the pressure regulating valve makes it easy for steam to leave dirt inside the valve when passing through it. This creates a blind spot when cleaning the pressure regulating valve, which can breed bacteria over time and pose a health hazard. Summary of the Invention

[0003] The present invention aims to provide a cooking utensil in which a pressure regulating mechanism is installed on an inner cover, and the technical problems to be solved are how to prevent steam from entering the pressure regulating valve and how to facilitate cleaning of the heat-insulating cover.

[0004] In order to achieve the above-mentioned objectives, the present invention provides a cooking utensil with a pressure-regulating mechanism installed on an inner cover, comprising a heat-insulating cover plate and an inner cover, an air outlet cavity being formed between the heat-insulating cover plate and the inner cover; an air outlet hole is provided on the heat-insulating cover plate, and the pressure-regulating mechanism comprises a pressure-regulating valve and a sealing member, the pressure-regulating valve is installed on the inner cover and is located above the air outlet hole, the sealing member is provided between the air outlet hole and the pressure-regulating valve, and the sealing member is used to isolate the pressure-regulating valve from the air outlet cavity; the air outlet hole is connected to the air outlet cavity when the steam generated by the heating of the cooking utensil pushes up the pressure-regulating valve and the sealing member, so that the steam generated by the heating of the cooking utensil bypasses the pressure-regulating valve and is discharged from the air outlet cavity to the outside of the cooking utensil.

[0005] The pressure regulating valve is provided with a spring, the upper part of the spring is mounted on the valve body of the pressure regulating valve, and the lower part of the spring is supported on the sealing member.

[0006] The weight of the pressure regulating valve is pressed on the spring and is transferred to the seal through the spring, so that the bottom of the seal blocks the air outlet; when the pressure of the steam pushes the seal upward, the spring is in a compressed state and drives the pressure regulating valve to move upward as a whole, the bottom of the seal is separated from the air outlet, and the steam enters the air outlet cavity through the air outlet and is discharged from the air outlet cavity to the outside of the cooking appliance.

[0007] The top of the cooking utensil is provided with an exhaust port, which is communicated with the air outlet cavity. The steam entering the air outlet cavity is discharged to the outside of the cooking utensil through the exhaust port.

[0008] The central axis of the exhaust port and the central axis of the air outlet hole are parallel to each other and are located on different straight lines.

[0009] The seal includes an annular step portion and a convex portion, and a smooth transition connection is provided between the annular step portion and the convex portion.

[0010] The lower part of the spring is supported on the annular step portion, and the bottom of the convex portion is adapted to the size and shape of the air outlet hole.

[0011] An inwardly horizontally extending annular lip is provided on the annular step portion.

[0012] An air storage chamber is formed between the upper part of the convex portion and the annular lip.

[0013] The cooking appliance is an appliance such as an electric rice cooker, a pressure cooker or an electric hot pot.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By installing the pressure regulating valve on the inner lid of the cooking appliance of the present invention, the steam generated by heating in the inner pot of the cooking appliance does not need to pass through the pressure regulating valve, but directly discharges through the air outlet cavity between the inner lid and the heat preservation cover plate. Therefore, no dirt remains on the pressure regulating valve and the pressure regulating valve does not need to be cleaned. At the same time, no pressure regulating valve is provided on the heat preservation cover plate, making the heat preservation cover plate easier to clean. Brief Description of the Drawings

[0015] The drawings are used to provide a further understanding of the technical solution of the present invention, and constitute a part of the specification, and are used to explain the technical solution of the present invention together with the specific embodiments of the present application, and do not constitute a limitation to the technical solution of the present invention.

[0016] Figure 1 is a schematic diagram of the installation structure of the pressure regulating valve of the cooking appliance in the prior art.

[0017] Figure 2 is a schematic diagram of the installation structure of the pressure regulating valve of the cooking appliance of the present invention.

[0018] Figure 3 is a schematic perspective view of the heat preservation cover plate of the present invention.

[0019] Figure 4 is a schematic bottom view of the heat preservation cover plate of the present invention. Detailed Description of the Embodiments

[0020] The present invention is described in more detail below to facilitate understanding of the present invention.

[0021] As Figures 2 to 4As shown, the cooking utensil with a pressure regulating mechanism installed on the inner cover of the present invention includes a heat-insulating cover plate 2 and an inner cover 3, and an air outlet cavity 4 is provided between the heat-insulating cover plate 2 and the inner cover 3; the heat-insulating cover plate 2 is provided with an air outlet hole 6, and the pressure-regulating mechanism includes a pressure-regulating valve 1 and a sealing member 5, the pressure-regulating valve 1 is installed on the inner cover 3 and is located above the air outlet hole 6, and a spring 7 is provided in the pressure-regulating valve 1, the upper part of the spring 7 is installed on the valve body of the pressure-regulating valve 1, and the lower part of the spring 7 is supported on the sealing member 5. The sealing member 5 is provided between the air outlet 6 and the pressure regulating valve 1, and is used to isolate the pressure regulating valve from the air outlet cavity; the weight of the pressure regulating valve is pressed on the spring 7 and is transmitted to the sealing member 5 through the spring, so that the bottom of the sealing member 5 blocks the air outlet 6; when the pressure of the steam pushes the sealing member 5 upward, the spring 7 is in a compressed state and drives the pressure regulating valve to move upward as a whole, the bottom of the sealing member 5 is separated from the air outlet 6, and the steam enters the air outlet cavity 4 through the air outlet 6; an exhaust port 8 is provided on the top of the cooking appliance, and the exhaust port 8 is connected to the air outlet cavity 4, and the steam entering the air outlet cavity 4 is finally discharged to the outside of the cooking appliance through the exhaust port 8 (see Figure 2 direction of the arrow).

[0022] The central axis of the exhaust port 8 and the central axis of the air outlet 6 are parallel to each other and located on different straight lines. This arrangement can make the exhaust port 8 avoid the position of the pressure regulating valve 1 and keep the steam away from the pressure regulating valve 1.

[0023] like Figure 2 As shown, the seal 5 includes an annular step 51 and a raised portion 52, with a smooth transition between the annular step 51 and the raised portion 52. The lower portion of the spring 7 is supported on the annular step 51, and the bottom of the raised portion 52 is adapted to the size and shape of the air outlet 6.

[0024] The annular step portion 51 is provided with an annular lip 54 extending horizontally inward.

[0025] An air chamber 53 is formed between the upper portion of the raised portion 52 and the annular lip 54. Since the raised portion 52 is made of a flexible material and air is contained in the air chamber 53, when the spring 7 applies downward force, the air chamber 53 and the raised portion 52 undergo elastic deformation, thereby making the bottom of the raised portion 52 fit more tightly against the air outlet 6, thereby achieving a better sealing effect.

[0026] When the cooking appliance does not generate steam or generates very little steam, and the pressure of the steam is not sufficient to lift the seal 5, the spring 7 and the pressure regulating valve 1 (for example, at the beginning of heating), the weight of the pressure regulating valve presses on the spring 7 and is transmitted to the seal 5 through the spring, so that the convex portion 52 at the bottom of the seal 5 blocks the air outlet 6, thereby forming a sealed micro-pressure environment in the inner pot of the cooking appliance, making the heating of the inner pot more sufficient and rapid (the principle is similar to that of a pressure cooker). When the pressure of the steam is large enough to lift the seal 5, the spring 7 and the pressure regulating valve 1, the seal 5, the spring 7 and the pressure regulating valve 1 move upward as a whole, and the convex portion 52 at the bottom of the seal 5 is separated from the air outlet 6, and the steam enters the air outlet cavity 4 through the air outlet 6. Since the seal 5 isolates the pressure regulating valve from the air outlet cavity 4, the steam cannot enter the interior of the pressure regulating valve and can only enter the exhaust port 8 along the air outlet cavity 4 (see Figure 2 the direction of the arrow in

[0027] ), and is discharged to the outside of the cooking appliance through the exhaust port 8. No steam enters the interior of the pressure regulating valve 1 during the whole process, so the pressure regulating valve does not need to be cleaned. Figure 1 and Figure 4 It can be clearly seen that the present invention also has the advantage of being convenient to clean the heat preservation cover.

[0028] Figure 1 As shown in the prior art, the pressure regulating valve 1 is arranged on the heat preservation cover 2 and is located in the space between the heat preservation cover and the inner pot of the cooking appliance, and the steam is discharged through the pressure regulating valve. Not only is it difficult to clean the pressure regulating valve 1 itself, but it also makes it inconvenient to clean the whole heat preservation cover 2.

[0029] Figure 4 As shown in the present invention, the pressure regulating valve is not arranged on the heat preservation cover 2 of the present invention (because the pressure regulating valve is installed on the inner cover), so the surface of the heat preservation cover 2 facing the inner pot of the cooking appliance is basically a flat structure, which is very convenient to clean and has no sanitary dead corners.

[0030] As a preferred embodiment, the cooking appliance may be an electric rice cooker, a pressure cooker, an electric hot pot or other appliances.

[0031] The preferred embodiments of the present invention have been described above, but they are not intended to limit the present invention. Those skilled in the art can make improvements and changes to the embodiments disclosed herein without departing from the scope and spirit of the present invention.

Claims

1. A cooking appliance with a pressure regulating mechanism installed on an inner cover, the cooking appliance comprising a heat-insulating cover plate and an inner cover, characterized in that: An air outlet cavity is formed between the heat-insulating cover plate and the inner cover; an air outlet hole is provided on the heat-insulating cover plate; the pressure-regulating mechanism includes a pressure-regulating valve and a sealing member; the pressure-regulating valve is mounted on the inner cover and located above the air outlet hole; the sealing member is disposed between the air outlet hole and the pressure-regulating valve, and the sealing member is used to isolate the pressure-regulating valve from the air outlet cavity; the air outlet cavity is communicated with the air outlet cavity when the pressure-regulating valve and the sealing member are lifted by steam generated by heating of the cooking appliance, so that the steam generated by heating of the cooking appliance bypasses the pressure-regulating valve and is discharged from the air outlet cavity to the outside of the cooking appliance; The pressure regulating valve is provided with a spring, the upper part of the spring is installed on the valve body of the pressure regulating valve, and the lower part of the spring is supported on the sealing member. The weight of the pressure regulating valve is pressed on the spring and transmitted to the sealing member through the spring, so that the bottom of the sealing member blocks the air outlet. When the pressure of the steam pushes the sealing member upward, the spring is in a compressed state and drives the pressure regulating valve to move upward as a whole. The bottom of the sealing member is separated from the air outlet, and the steam enters the air outlet cavity through the air outlet and is discharged from the air outlet cavity to the outside of the cooking appliance.

2. The cooking appliance with a pressure regulating mechanism mounted on an inner cover according to claim 1, characterized in that: The top of the cooking utensil is provided with an exhaust port, which is communicated with the air outlet cavity. The steam entering the air outlet cavity is discharged to the outside of the cooking utensil through the exhaust port.

3. The cooking appliance with a pressure regulating mechanism mounted on an inner cover according to claim 2, characterized in that: The central axis of the exhaust port and the central axis of the air outlet are parallel to each other and located on different straight lines.

4. The cooking appliance with a pressure regulating mechanism mounted on an inner cover according to claim 1, characterized in that: The sealing element comprises an annular step portion and a convex portion, and the annular step portion and the convex portion are connected in a smooth transition.

5. The cooking appliance with a pressure regulating mechanism mounted on an inner cover according to claim 4, characterized in that: The lower part of the spring is supported on the annular step portion, and the bottom of the protrusion is adapted to the size and shape of the air outlet.

6. The cooking appliance with a pressure regulating mechanism mounted on an inner cover according to claim 4, characterized in that: The annular step portion is provided with an annular lip extending horizontally inwards.

7. The cooking appliance with a pressure regulating mechanism mounted on an inner cover according to claim 6, characterized in that: An air chamber is formed between the upper portion of the protrusion and the annular lip.

8. The cooking appliance according to any one of claims 1 to 7, wherein the pressure regulating mechanism is mounted on the inner cover. The cooking utensil is an electric rice cooker, a pressure cooker or an electric hot pot.

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