CN220917181U - Upper cover and cooking utensil with same - Google Patents

Abstract

The utility model provides an upper cover and a cooking utensil with the same, wherein the upper cover comprises: the cover body comprises a top plate and an annular side plate, the upper end of the annular side plate is connected with the outer edge of the top plate, the top plate is provided with a transmission port which is arranged in a penetrating way, and the lower surface of the top plate is a first pressure-bearing surface; the transmission plate is arranged at the transmission opening, and the part of the lower surface of the transmission plate, which is projected to the transmission opening and coincides with the transmission opening, is a second pressure-bearing surface; wherein the ratio of the projected area of the first bearing surface on the horizontal plane to the area of the second bearing surface is between 3:1 and 4:1. According to the technical scheme provided by the utility model, the problem that the infrared transmission glass is easy to crack and damage due to the fact that the pressure born by the infrared transmission glass in the related technology is large can be solved.

Description

Upper cover and cooking utensil with same

Technical Field

The utility model relates to the technical field of small household appliances, in particular to an upper cover and a cooking appliance with the same.

Background

In order to better heat the food in the cooking cavity, an infrared heating element is arranged in the upper cover of the cooking utensil. The upper cover of cooking utensil is provided with the installing port, and infrared transmission glass sets up in the installing port department, and infrared transmitting element sets up in infrared transmission glass's top, and infrared ray that infrared heating element sent is transmitted infrared transmission glass and is got into the culinary art intracavity to heat the food in the culinary art chamber.

In the related art, the upper cover is provided with a fixing member, and the infrared transmitting glass is sandwiched between the upper cover and the fixing member to fix the infrared transmitting glass.

However, the pressure in the cooking cavity of the cooking appliance is larger in the cooking process, and the pressure born by the infrared transmitting glass is correspondingly larger, so that the infrared transmitting glass is easy to crack and damage.

Disclosure of utility model

The utility model provides an upper cover and a cooking utensil with the upper cover, which are used for solving the problem that infrared transmission glass is easy to break and damage due to high pressure born by the infrared transmission glass in the related technology.

According to an aspect of the present utility model, there is provided an upper cover comprising: the cover body comprises a top plate and an annular side plate, the upper end of the annular side plate is connected with the outer edge of the top plate, the top plate is provided with a transmission port which is arranged in a penetrating way, and the lower surface of the top plate is a first pressure-bearing surface; the transmission plate is arranged at the transmission opening, and the part of the lower surface of the transmission plate, which is projected to the transmission opening and coincides with the transmission opening, is a second pressure-bearing surface; wherein the ratio of the projected area of the first bearing surface on the horizontal plane to the area of the second bearing surface is between 3:1 and 4:1.

By applying the technical scheme of the utility model, the upper cover comprises the cover body and the transmission plate, the transmission plate is arranged at the transmission opening of the cover body, and infrared rays emitted by the infrared emission element enter the cooking cavity through the transmission plate so as to heat food in the cooking cavity. And, because the lower surface of roof is first pressure-bearing face, the lower surface projection of transmission board reaches the transmission mouth and the part that coincides with the transmission mouth is the second pressure-bearing face, and the ratio of the projected area of first pressure-bearing face on the horizontal plane to the area of second pressure-bearing face is between 3:1 and 4:1, so under the prerequisite of guaranteeing the transmission area, can utilize the lid to carry out pressure-bearing as far as, reduce the pressure that the transmission board bore in the culinary art in-process, reduce or eliminate the risk that the transmission board breaks and damages.

Further, the top plate is provided with an opening which is penetrated, the inner side wall of the opening is provided with a flanging which extends inwards, an inner hole of the flanging forms a transmission opening, and the transmission plate is abutted with the flanging; wherein, the lower surface of the transmission plate which is not shielded by the flanging is a second pressure-bearing surface. Through setting up the turn-ups, can utilize the turn-ups to provide the assembly space for the transmission board, be convenient for accomplish the assembly of transmission board.

Further, the transmission plate is arranged below the flanging, and the upper surface of the transmission plate is abutted with the lower surface of the flanging. By adopting the structure, in the cooking process, along with the pressure rise of the cooking cavity, the transmission plate has a trend of upward movement under the action of the pressure, so that the transmission plate is tightly attached to the flanging, the transmission plate has good assembly firmness, the transmission plate cannot leave the assembly position during bearing pressure, and the upper cover cannot be damaged. And moreover, the flange can be used for providing rigid support for the transmission plate, and the transmission plate has the advantage of strong bearing capacity.

Further, the upper cover further comprises a sealing ring, the inner side wall of the sealing ring is provided with an annular mounting groove, the outer edge of the transmission plate is inserted into the annular mounting groove, and the upper surface of the sealing ring is abutted against the lower surface of the flanging. Through setting up the sealing washer, utilize the sealing washer to seal the gap between transmission board and the lid, can promote transmission board's sealing performance.

Further, the ratio of the projection area of the first bearing surface on the horizontal plane to the area of the second bearing surface is between 3.3:1 and 3.5:1, so that the ratio of the projection area of the first bearing surface on the horizontal plane to the area of the second bearing surface can be further optimized, and the risk of fracture and damage of the transmission plate can be further reduced or eliminated.

Further, the thickness dimension of the transmission plate is between 3mm and 5mm, so that the structural strength of the transmission plate can be ensured, and the pressure bearing capacity of the transmission plate is improved.

Further, the transmission plate is a circular plate, and the pressure distribution born by the transmission plate is more balanced; and/or the transmission plate comprises a high borosilicate glass plate, and the high borosilicate glass plate has the advantages of good transmission effect and high structural strength.

Further, the projection of the first pressure bearing surface on the horizontal plane is of a circular ring structure, and the pressure distribution born by the top plate is more balanced.

Further, the lower end of the annular side plate is provided with a cover tooth, or the upper cover further comprises a caliper which is movably arranged. The upper cover is buckled with the pot body by using the cover teeth or the calipers so as to perform pressure cooking by using the cooking utensil.

According to another aspect of the present utility model, there is provided a cooking appliance including: a pot body; the upper cover is arranged on the pot body and is the upper cover provided by the above. Therefore, the cooking utensil can also utilize the cover body to bear pressure as much as possible on the premise of ensuring the transmission area, reduce the pressure born by the transmission plate in the cooking process, and reduce or eliminate the risk of breakage and damage of the transmission plate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a cross-sectional view of an upper cover provided by an embodiment of the present utility model;

FIG. 2 shows a schematic dimensional view of an upper cover provided by an embodiment of the present utility model;

fig. 3 is a schematic view showing a first pressure-bearing surface and a second pressure-bearing surface of an upper cover according to an embodiment of the present utility model;

fig. 4 shows a schematic structural view of the transmissive plate of fig. 1;

FIG. 5 shows an exploded view of the upper cover provided by the embodiment of the utility model;

FIG. 6 shows a cross-sectional view of an upper cover provided with a gasket and a transmissive plate pressed against a top plate using a retainer ring in accordance with an embodiment of the present utility model;

FIG. 7 shows another cross-sectional view of the upper cover provided by the embodiment of the utility model with the gasket and the transmissive plate pressed against the top plate with the retainer ring;

Fig. 8 is a cross-sectional view showing an upper cover for bonding a transmissive plate to a top plate using an adhesive layer according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. A cover body; 11. a top plate; 111. a transmission port; 112. a top plate body; 1121. an opening; 113. a mounting ring; 1131. flanging; 114. vertical ribs; 12. an annular side plate; 121. covering teeth; 13. a first pressure-bearing surface;

20. A transmissive plate; 21. a second pressure-bearing surface;

30. A seal ring; 31. a clamping hook;

40. A fixing ring;

h. the thickness of the transmissive plate; D. the outer diameter of the top plate; d. the inner diameter of the transmission port.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, an embodiment of the present utility model provides an upper cover including a cover body 10 and a transmissive plate 20. The cover body 10 comprises a top plate 11 and an annular side plate 12, wherein the upper end of the annular side plate 12 is connected with the outer edge of the top plate 11, the top plate 11 is provided with a transmission opening 111 which penetrates through the top plate, and the lower surface of the top plate 11 is provided with a first pressure bearing surface 13. The transmission plate 20 is provided at the transmission port 111, and a portion of the lower surface of the transmission plate 20 projected to the transmission port 111 and overlapping the transmission port 111 is the second pressure-bearing surface 21. Wherein the ratio of the projected area of the first bearing surface 13 on the horizontal plane to the area of the second bearing surface 21 is between 3:1 and 4:1.

With the upper cover provided in this embodiment, the transmission plate 20 is disposed at the transmission opening 111 of the cover body 10, and the infrared rays emitted by the infrared emitting element penetrate through the transmission plate 20 and enter the cooking cavity to heat the food in the cooking cavity. Moreover, since the lower surface of the top plate 11 is the first bearing surface 13, the portion of the lower surface of the transmission plate 20 projected to the transmission opening 111 and overlapped with the transmission opening 111 is the second bearing surface 21, and the ratio of the projected area of the first bearing surface 13 on the horizontal plane to the area of the second bearing surface 21 is between 3:1 and 4:1, so that the cover body 10 can be used for bearing pressure as much as possible on the premise of ensuring the transmission area, the pressure born by the transmission plate 20 in the cooking process is reduced, and the risk of breakage and damage of the transmission plate 20 is reduced or eliminated.

The ratio of the projected area of the first bearing surface 13 to the area of the second bearing surface 21 on the horizontal plane may be any of the other ratios between 3:1, 3.2:1, 3.4:1, 3.6:1, 3.8:1, 4:1, and 3:1 to 4:1.

As shown in fig. 1, the top plate 11 has an opening 1121 penetrating therethrough, a flange 1131 extending inward is provided on the inner side wall of the opening 1121, the inner hole of the flange 1131 forms the transmission port 111, and the transmission plate 20 abuts against the flange 1131. Wherein, the lower surface of the transmitting plate 20, which is not shielded by the flange 1131, is the second pressure-bearing surface 21. By providing the flange 1131, the flange 1131 can be utilized to provide an assembly space for the transmissive plate 20, so that the assembly of the transmissive plate 20 can be completed conveniently.

It should be noted that, the transmissive plate 20 is abutted against the flange 1131, and includes the following two structures: the first is that the transmission plate 20 is directly abutted with the flange 1131; the second is that the transmissive plate 20 indirectly abuts against the flange 1131 through another member (e.g., a seal ring).

Specifically, the top plate 11 includes a top plate body 112 and a mounting ring 113, the top plate body 112 has an opening 1121 provided therethrough, an upper end of the mounting ring 113 is enclosed at the opening 1121 and connected to the top plate body 112, and a lower end of the mounting ring 113 is provided with an inwardly extending flange 1131.

In the present embodiment, the transmissive plate 20 is disposed below the flange 1131, and an upper surface of the transmissive plate 20 abuts against a lower surface of the flange 1131. With the adoption of the structure, in the cooking process, along with the pressure rise of the cooking cavity, the transmission plate 20 has a trend of upward movement under the action of the pressure, so that the transmission plate 20 is tightly attached to the flange 1131, the transmission plate 20 has good assembly firmness, the transmission plate 20 cannot leave the assembly position in the pressure bearing process, and the upper cover cannot be damaged. Moreover, the flange 1131 can provide rigid support for the transmissive plate 20, and has the advantage of strong bearing capacity.

As shown in fig. 1, the upper cover further includes a sealing ring 30, an annular mounting groove is provided on an inner side wall of the sealing ring 30, and an outer edge of the transmitting plate 20 is inserted into the annular mounting groove, and an upper surface of the sealing ring 30 abuts against a lower surface of the flange 1131. By providing the seal ring 30, the seal ring 30 seals the gap between the transmission plate 20 and the cover 10, and thus the sealing performance of the transmission plate 20 can be improved.

As shown in fig. 1, the sealing ring 30 is provided with a hook 31 extending upward, and the hook 31 is engaged with the upper surface of the top plate 11. With the above structure, since the seal ring 30 is connected with the transmission plate 20, the transmission plate 20 can be assembled and fixed on the cover body 10 after the hook 31 is clamped with the upper surface of the top plate 11. After the cooking is finished, the transmitting plate 20 can be detached from the cover body 10 by the clamping hooks 31, so that the washing is convenient. After the cleaning, the transmission plate 20 is assembled back to the cover body 10 by the hook 31, so that the assembly is convenient.

As shown in fig. 8, in other embodiments, an adhesive layer may be further provided between the transmissive plate 20 and the top plate 11, and the transmissive plate 20 may be adhered to the top plate 11 by the adhesive layer. Specifically, an adhesive layer may be provided between the upper surface of the transmissive plate 20 and the lower surface of the flange 1131 and between the vertical ribs 114 extending downward from the lower surface of the top plate 11 and the outer side wall of the transmissive plate 20.

Or in other embodiments, the sealing ring is pressed on the top plate by using the fixing ring 40, so as to fix the transmission plate. For example, as shown in fig. 7, the seal ring may be provided below the top plate, the retainer ring 40 may be provided below the seal ring, the retainer ring 40 may be fixedly connected to the top plate, and the seal ring may be pressed against the top plate by the retainer ring 40. For another example, as shown in fig. 6, the seal ring may be provided above the top plate, the fixing ring 40 may be provided above the seal ring, the fixing ring 40 may be fixedly connected to the top plate, and the seal ring may be pressed against the top plate by the fixing ring 40. Wherein the fixed connection comprises screw connection, welding or riveting.

Specifically, the ratio of the projected area of the first bearing surface 13 to the area of the second bearing surface 21 on the horizontal plane is between 3.3:1 and 3.5:1, so that the ratio of the projected area of the first bearing surface 13 to the area of the second bearing surface 21 on the horizontal plane can be further optimized, and the risk of fracture damage of the transmission plate 20 can be further reduced or eliminated.

The ratio of the projected area of the first bearing surface 13 to the area of the second bearing surface 21 on the horizontal plane may be any of the other ratios between 3.3:1, 3.4:1, 3.5:1, and 3.3:1 to 3.5:1.

In this embodiment, the ratio of the projected area of the first bearing surface 13 to the area of the second bearing surface 21 is 3.4:1, so that the transmissive plate 20 does not rupture under the extreme breaking pressure.

The thickness h of the transmissive plate 20 is between 3mm and 5mm, so that the structural strength of the transmissive plate 20 can be ensured, and the pressure bearing capacity of the transmissive plate 20 can be improved.

Specifically, the thickness dimension of the transmissive plate 20 may be 3mm, 4mm, 5mm, and any other value between 3mm and 5mm. In the present embodiment, the thickness dimension of the transmissive plate 20 is 5mm.

In the present embodiment, the diameter of the transmissive plate 20 is 120mm.

As shown in fig. 2, the top plate 11 has an outer diameter D of 242mm, the transmission port 111 has an inner diameter D of 115mm, the first pressure-bearing surface 13 has a projected area of 3.56 square decimeters on the horizontal plane, and the second pressure-bearing surface 21 has an area of 1.04 square decimeters.

In this embodiment, the transmissive plate 20 is a circular plate, and the pressure distribution borne by the transmissive plate 20 is more uniform.

The projection of the first bearing surface 13 on the horizontal plane is in a ring structure, so that the pressure distribution born by the top plate 11 is more balanced.

In this embodiment, in the case where the transmissive plate 20 has a diameter of 120mm and a thickness of 5.0mm, the transmissive plate 20 is not broken at a limit pressure of 729.5 kPa. With a diameter of 120mm and a thickness of 4.0mm of the transmissive plate 20, the limiting pressure that can be sustained was 455kPa.

Specifically, the transmissive plate 20 comprises a high borosilicate glass plate. The high borosilicate glass plate has good transmission effect and high structural strength.

In this embodiment, the cover body 10 may be an inner cover of an electric pressure cooker, the lower end of the annular side plate 12 is provided with a cover tooth 121, and the cover tooth 121 cooperates with a pot tooth of the cooker body to realize the locking with the cooker body. An infrared heating element is arranged above the transmission plate 20, and the transmission plate 20 can seal the cooking cavity and transfer heat energy.

In other embodiments, the upper cover further comprises a caliper which is movably arranged, and the upper cover is matched with the pot body through the caliper to realize the buckling with the pot body.

In the embodiment, the infrared heating element is a heating tube, and has the advantage of low cost. In other embodiments, the infrared heating element may also be a carbon-containing element, such as a halogen tube.

The utility model further provides a cooking appliance, which comprises a pot body and an upper cover, wherein the upper cover is arranged on the pot body, and the upper cover is the upper cover provided by the utility model. Therefore, the cooking appliance can also utilize the cover body 10 to bear pressure as much as possible on the premise of ensuring the transmission area, reduce the pressure born by the transmission plate 20 in the cooking process, and reduce or eliminate the risk of breakage and damage of the transmission plate 20.

The cooking utensil of the application is a pressure cooker, and can be a utensil with other functions such as an electric cooker, an electric stewpan, a cooking machine and the like.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An upper cover, characterized in that the upper cover comprises:

The cover body (10) comprises a top plate (11) and an annular side plate (12), wherein the upper end of the annular side plate (12) is connected with the outer edge of the top plate (11), the top plate (11) is provided with a transmission port (111) which is arranged in a penetrating manner, and the lower surface of the top plate (11) is a first pressure-bearing surface (13);

A transmission plate (20) arranged at the transmission port (111), wherein the part of the lower surface of the transmission plate (20) projected to the transmission port (111) and overlapped with the transmission port (111) is a second pressure-bearing surface (21);

Wherein the ratio of the projected area of the first bearing surface (13) on the horizontal plane to the area of the second bearing surface (21) is between 3:1 and 4:1.

2. The upper cover according to claim 1, wherein the top plate (11) has an opening (1121) provided therethrough, an inner side wall of the opening (1121) is provided with a flange (1131) extending inward, an inner hole of the flange (1131) forms the transmission port (111), and the transmission plate (20) abuts against the flange (1131);

Wherein the lower surface of the transmission plate (20) which is not shielded by the flange (1131) is the second pressure-bearing surface (21).

3. The upper cover according to claim 2, wherein the transmissive plate (20) is disposed below the flange (1131), and an upper surface of the transmissive plate (20) abuts against a lower surface of the flange (1131).

4. A cover according to claim 3, further comprising a sealing ring (30), wherein an annular mounting groove is provided on an inner side wall of the sealing ring (30), an outer edge of the transmitting plate (20) is inserted into the annular mounting groove, and an upper surface of the sealing ring (30) abuts against a lower surface of the flange (1131).

5. A cover according to any one of claims 1 to 4, wherein the ratio of the projected area of the first bearing surface (13) on the horizontal plane to the area of the second bearing surface (21) is between 3.3:1 and 3.5:1.

6. Upper cover according to any one of claims 1 to 4, characterized in that the thickness dimension of the transmissive plate (20) is between 3mm and 5mm.

7. The upper cover according to any one of claims 1 to 4, wherein,

The transmission plate (20) is a circular plate; and/or the number of the groups of groups,

The transmissive plate (20) comprises a high borosilicate glass plate.

8. A cover according to any one of claims 1 to 4, wherein the projection of the first pressure-bearing surface (13) on a horizontal plane is of annular configuration.

9. Upper cover according to any one of claims 1 to 4, characterized in that the lower end of the annular side plate (12) is provided with a cover tooth (121), or in that the upper cover further comprises a movably arranged caliper.

10. A cooking appliance, the cooking appliance comprising:

a pot body;

An upper cover, which is provided on the pan body, and is the upper cover according to any one of claims 1 to 9.