Door seal and steam cooking device thereof

Abstract

The utility model discloses a door seal and a steam cooking device thereof, the door seal is used for sealing a gap between a door body and a cavity opening of the steam cooking device in a closed state, and the door seal comprises a first sealing part embedded in a sealing groove in the cavity opening of the steam cooking device; the second sealing part extends from the first sealing part and wraps the edge, facing one side of the door body, of the sealing groove; the third sealing part comprises a first end and a second end, and the first end is connected with the first sealing part; the second end is formed by extending from the first end to the door body, and the thickness of the third sealing part is gradually increased from the first end to the second end. According to the door seal, the third sealing part of the door seal is attached to the door body, the weight of the second end is increased by increasing the thickness of the second end, deformation vibration under the action of airflow is reduced, whistling sound is avoided, meanwhile, the appearance change of the third sealing part is continuous and smooth through the increasing thickness change mode, and the service life of the door seal is prolonged. The binding face attached to the door body has good integrity, and the sealing effect is guaranteed.

Description

Technical Field

[0001] This application relates to the field of cooking apparatus technology, specifically a door seal and its steam cooking apparatus. Background Technology

[0002] Steam cooking devices such as electric steamers primarily use the generated steam to heat food placed inside the cavity. Sealing performance is a crucial indicator of steam cooking effectiveness; it ensures that steam does not leak from gaps between the door and the cavity, guaranteeing even steam distribution within the cavity and preventing overcooking or undercooking of the food.

[0003] The sealing structure of a steam cooking appliance typically includes an annular door seal made of flexible material, positioned at the closed annular gap between the cavity and the door. When the door is closed, the contact surface of the door seal is pressed tightly against the inner surface of the door, forming a sealed negative pressure area that effectively prevents steam leakage from the cooking appliance. For ease of cleaning and maintenance, the door seal is designed to be removable.

[0004] The thin-walled contact surface of the door seal vibrates due to airflow changes during door opening and closing, producing a whistling sound. In existing technology, to avoid this whistling sound, a protrusion is added to the second end of the contact surface to increase its weight and reduce vibration caused by airflow. However, this protrusion disrupts the flatness of the contact surface, creating gaps between it and the door after it is applied, compromising the integrity of the bonding surface and affecting the sealing effect. Utility Model Content

[0005] This application provides a door seal designed to at least improve upon the technical problems existing in the prior art.

[0006] In accordance with the above objectives, this application provides a door seal for sealing the gap between the door and cavity opening of a steam cooking device in a closed state, comprising:

[0007] The first sealing part is fitted into the sealing groove at the opening of the cavity of the steam cooking device;

[0008] The second sealing part extends from the first sealing part and covers the edge of the sealing groove facing the door body;

[0009] The third sealing part includes:

[0010] The first end is connected to the first sealing part;

[0011] The second end extends from the first end toward the door body, and the thickness of the third sealing part increases from the first end to the second end.

[0012] The present application has the following beneficial effects: the third sealing part of the door seal fits into the door body, and the weight of the second end is increased by increasing the thickness of the second end, which reduces the deformation and vibration under the action of airflow and avoids the generation of whistling sound. At the same time, the incremental thickness change makes the shape change of the third sealing part continuous and smooth, and the fitting surface after fitting into the door body has good integrity, thus ensuring the sealing effect.

[0013] Furthermore, the thickness of the third sealing portion increases symmetrically from the first end to the second end.

[0014] Furthermore, the thickness of the third sealing portion increases asymmetrically from the first end to the second end.

[0015] Furthermore, a first deformation groove is provided between the third sealing part and the second sealing part, and a first reinforcing rib is provided in the first deformation groove.

[0016] Furthermore, the first reinforcing rib is multiple and spaced apart.

[0017] Furthermore, the first reinforcing rib has a first spacing and a second spacing. The first spacing is located in the first deformation groove at the corner of the cavity opening, and the second spacing is located in the first deformation groove at the straight wall of the cavity opening. The first spacing is less than the second spacing.

[0018] Furthermore, the first sealing part is also provided with a groove, the groove having an opening, the direction of which is the same as the direction in which the first sealing part is inserted into the sealing groove.

[0019] Furthermore, a second reinforcing rib is provided between the corresponding inner surfaces within the groove, and there are multiple second reinforcing ribs spaced apart.

[0020] Furthermore, the surface of the first sealing portion on at least one side adjacent to the groove is provided with an anti-slip structure, wherein the anti-slip structure is at least one of ribs and a frosted layer.

[0021] This application also provides a steam cooking device, which includes a cavity, a door, and a door seal as described above. The door closes at the opening of the cavity, and a sealing groove is provided at the opening of the cavity. The door seal is embedded in the sealing groove to seal the gap between the door and the opening of the cavity when the steam cooking device is in the closed state.

[0022] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of a steam cooking apparatus provided in an exemplary embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of a door seal facing the door body, provided in an exemplary embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of a door seal inserted into a sealing groove, provided in an exemplary embodiment of this application;

[0026] Figure 4 This is a cross-sectional schematic diagram of a door seal provided in Exemplary Embodiment 1 of this application;

[0027] Figure 5 This is a cross-sectional schematic diagram of a door seal provided in Exemplary Embodiment 2 of this application.

[0028] in, Figures 1 to 5 The annotations in the accompanying drawings are explained as follows:

[0029] 1 Door seal, 11 First sealing part, 12 Second sealing part, 13 Third sealing part, 14 First deformation groove, 111 Groove, 112 Slot, 113 Second reinforcing rib, 114 Raised rib, 115 Frosted layer, 131 First end, 132 Second end, 141 First reinforcing rib;

[0030] 2. Steam cooking device, 21. Door, 22. Cavity, 23. Sealing groove. Detailed Implementation

[0031] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0032] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0033] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0034] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0036] Example 1

[0037] As attached Figure 1-4 As shown, this application provides a door seal 1 through the following technical solution, used to seal the gap between the door 21 and the opening of the cavity 22 of the steam cooking device 2 in the closed state, comprising:

[0038] The first sealing part 11 is fitted into the sealing groove 23 at the opening of the cavity 22 of the steam cooking device 2;

[0039] The second sealing part 12 extends from the first sealing part 11 and covers the edge of the sealing groove 23 facing the door body 21;

[0040] The third sealing part 13 includes: a first end 131, which is connected to the first sealing part 11; and a second end 132, which extends from the first end 131 toward the door body, and the thickness of the third sealing part 12 increases from the first end 131 to the second end 132.

[0041] The first sealing part 11 of the door seal 1 is embedded in the sealing groove 23, which allows the door seal 1 to be installed and removed within the sealing groove 23, and also facilitates the disassembly and cleaning of the door seal 1. The first sealing part 11 embedded in the sealing groove 23 can also seal the gaps within the sealing groove 23, preventing steam leakage and airflow vibration caused by these gaps.

[0042] The second sealing part 12 extends from the first sealing part 11 and covers the edge of the sealing groove 23 facing the door body 21. This can increase the contact area between the first sealing part 11 and the sealing groove 23 after the first sealing part 11 is installed in the sealing groove 23, thereby improving the stability of the installation. At the same time, covering the edge of the sealing groove 23 facing the door body 21 can prevent airflow from entering the gap between the first sealing part 11 and the sealing groove 23 through the edge of the sealing groove 23, thus preventing steam leakage and airflow vibration.

[0043] The third sealing part 13 is fitted to the door body 21. Increasing the thickness of the second end 132 of the third sealing part 13 increases its weight. When encountering airflow, the deformation and vibration of the second end 132 are reduced, preventing whistling sounds. Simultaneously, the progressively increasing thickness from the first end 131 to the second end 132 results in a continuous and smooth shape change for the third sealing part 13, forming a more complete fitting surface after being fitted to the door body, ensuring a good seal. (See attached image) Figure 4 As shown, the thickness of the third sealing part 13 increases symmetrically from the first end 131 to the second end 132. That is, the second end 132 increases in thickness symmetrically to both sides with the first end 131 as the center, and the final shape of the second end 132 is also centrally symmetrical.

[0044] A first deformation groove 14 is provided between the third sealing part 13 and the second sealing part 12, and a first reinforcing rib 141 is provided in the first deformation groove 14. The first reinforcing rib 141 has a two-fold strengthening effect on the third sealing part 13. When the door 21 is closed, the third sealing part 13 is pressed by the door 21, and the first reinforcing rib 141 can enhance the support for the third sealing part 13, pushing the third sealing part 13 to fit more tightly against the door 21; when the door 21 is opened, due to inertia and the adsorption force of water vapor on the contact surface between the door 21 and the third sealing part 13, the third sealing part 13 will be subjected to a certain pulling force as the door 21 is opened; at this time, the first reinforcing rib 141 can enhance the repositioning and shaping of the third sealing part 13, so as to overcome the pulling force of the door 21 and avoid deformation and damage after the door 21 is opened repeatedly.

[0045] Specifically, the first reinforcing rib 141 has a first spacing and a second spacing. The first spacing is the spacing of the first reinforcing ribs 141 in the first deformation groove 14 corresponding to the corner of the cavity 22 opening, and the second spacing is the spacing of the first reinforcing ribs 141 in the first deformation groove 14 corresponding to the straight wall of the cavity 22 opening. The first spacing is less than the second spacing. The door seal 1 needs to be bent at the corner of the sealing groove 23 for matching installation. Bending will compress and cause the third sealing part 13 to deform to a certain extent, affecting the fit with the door body 21. Therefore, reducing the spacing of the first reinforcing ribs 141 in the first deformation groove 14 at the corner, that is, increasing the number of first reinforcing ribs 141 in the first deformation groove 14 at the corner, can improve the shaping and supporting effect of the first reinforcing ribs 14 at the corner on the third sealing part 13, so as to ensure the fit between the third sealing part 13 at the corner and the door body 21.

[0046] In addition, the first sealing part 11 is provided with a groove 111, the groove 111 having a slot 112, the direction of the slot 112 being the same as the direction in which the first sealing part 11 is inserted into the sealing groove 23. The corresponding inner surfaces within the groove 111 are also provided with a second reinforcing rib 113, and there are multiple second reinforcing ribs 113 arranged at intervals.

[0047] To facilitate the insertion of the first sealing part 11 into the sealing groove 23, a groove 111 is provided within the first sealing part 11. When inserting it into the sealing groove 23, pressing the first sealing part 11 causes it to retract appropriately into the groove 111, thus making it easier to insert into the sealing groove 23. The second reinforcing rib 113 between the inner surfaces of the groove 111 enhances the shaping and support of the groove 111. After the first sealing part 11 is inserted into the sealing groove 23, by supporting the inner surface of the groove 111, the adjacent side surfaces of the first sealing part 11 are tightly pressed against the inner wall of the sealing groove 23, reducing the formation of gaps and improving the sealing effect of the first sealing part 11.

[0048] Specifically, an anti-slip structure is provided on the surface of the first sealing part 11 on at least one side adjacent to the groove 112, and the anti-slip structure extends in the same direction as the first sealing part 11. After the first sealing part 11 is inserted into the sealing groove 23, the anti-slip structure can enhance the seal between the outer surface of the first sealing part 11 and the sealing groove 23, and at the same time increase the frictional resistance between the first sealing part 11 and the sealing groove 23, preventing the first sealing part 11 from easily falling out of the sealing groove 23, and improving the firmness of the door seal 1 after installation.

[0049] It should be noted that the anti-slip structure can be provided on one or both sides of the surface of the first sealing part 11 adjacent to the groove 112. The anti-slip structure can be at least one of the raised ribs 114 and the frosted layer 115; there can be one or more raised ribs 114, all of which can achieve the above-mentioned effect. In the embodiment of this application, a raised rib 114 is provided on one side surface of the first sealing part 11 adjacent to the groove 112, and a frosted layer 115 is provided on the other side surface.

[0050] It should be noted that the door seal 1 is an elastic sealing ring, and its elastic properties can better achieve the sealing effect of the door seal 1. The door seal 1 can be made of silicone, rubber or polyurethane elastomer, etc.

[0051] Example 2

[0052] As attached Figure 5 The difference between this embodiment and Embodiment 1 is that the thickness of the third sealing part 13 increases asymmetrically from the first end 131 to the second end 132.

[0053] Specifically, the thickness of the third sealing part 13 increases asymmetrically from the first end 131 to the second end 132. That is, the second end 132 increases in thickness towards both sides with the first end 131 as the center, but the increase in thickness on one side is greater than that on the other side. In this embodiment, the thickness increase of the second end 132 is towards the door body 21, while the thickness on the other side remains unchanged. Due to the asymmetrical increase in thickness, the different thickness increase trends on both sides of the second end 132 allow the shape of the second end 132 to form various styles such as flat, inclined, and curved surfaces, thereby more specifically meeting the requirements of different door bodies and different fitting effects, increasing the applicability of the door seal 1.

[0054] In addition, this application also provides a steam cooking device 2, which includes a cavity 22, a door 21 and a door seal 1 as described above. The door 21 is closed at the opening of the cavity 22, and a sealing groove 23 is provided at the opening of the cavity 22. The door seal 1 is embedded in the sealing groove 23 to seal the gap between the door 21 and the opening of the cavity 22 of the steam cooking device 2 in the closed state.

[0055] Obviously, the steam cooking device 2 in this exemplary embodiment has all the technical effects brought about by the door seal 1 described above, so it will not be repeated here.

[0056] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A door seal for sealing a gap between a door body and a cavity opening of a steam cooking apparatus in a closed state, characterized in that, The application relates to a door seal for a steam cooking device. The door seal comprises: a first sealing part embedded in a sealing groove at an opening of a cavity of the steam cooking device; a second sealing part extended from the first sealing part and covering an edge of the sealing groove on a side facing a door body; a third sealing part comprising: a first end connected with the first sealing part; 2. A door seal according to claim 1, characterised in that a second end extended from the first end in a direction of the door body, wherein a thickness of the third sealing part increases from the first end to the second end.

3. A door seal according to claim 1, wherein, The thickness of the third sealing part increases symmetrically from the first end to the second end.

4. A door seal according to claim 1, wherein The thickness of the third sealing part increases asymmetrically from the first end to the second end.

5. A door seal according to claim 4, wherein, A first deformation groove is further arranged between the third sealing part and the second sealing part, and a first reinforcing rib is arranged in the first deformation groove.

6. A door seal according to claim 5, wherein, The first reinforcing rib is multiple and arranged at intervals.

7. A door seal according to claim 1, wherein The first reinforcing rib has a first interval and a second interval, the first interval is arranged in the first deformation groove at a corner of the opening of the cavity, and the second interval is arranged in the first deformation groove at a straight wall of the opening of the cavity, wherein the first interval is less than the second interval.

8. A door seal according to claim 7, characterised in that A recess is further arranged in the first sealing part, and the recess has a slot, and a direction of the slot is the same as a direction in which the first sealing part is embedded in the sealing groove.

9. A door seal according to claim 7, wherein, Second reinforcing ribs are further arranged between inner side surfaces corresponding to each other in the recess, and the second reinforcing ribs are multiple and arranged at intervals.

10. A steam cooking apparatus, characterized by A surface of the first sealing part on at least one side adjacent to the slot is provided with an anti-skid structure, and the anti-skid structure is at least one of a convex rib and a frosted layer. The steam cooking device comprises a cavity, a door body and the door seal according to any one of claims 1-9, the door body is closed at the opening of the cavity, a sealing groove is arranged at the opening of the cavity, and the door seal is embedded in the sealing groove to seal a gap between the door body and the opening of the cavity in a closed state.

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