Sealing gasket and dishwasher base assembly having the same

Abstract

The present invention discloses a sealing gasket and a dishwasher base assembly having the same. The sealing gasket comprises a first sealing portion, a second sealing portion, and a supporting portion. The first sealing portion is used to form a seal between the sealing gasket and the power board box, and the second sealing portion cooperates with the supporting portion to form a seal between the sealing gasket and the bottom steel plate. The present invention seals the gap between the power board box and the bottom steel plate through the sealing gasket, preventing water from entering the power board box through the gap and damaging electrical components, thereby affecting the use of the dishwasher. The present invention has the characteristics of diverse shapes, simple structure, easy operation, good durability, high sealing performance, high safety, and an improved user experience.

Description

Technical Field

[0001] The present invention belongs to the technical field of dishwashers, and in particular relates to a sealing gasket and a dishwasher base assembly having the sealing gasket. Background Art

[0002] Dishwashers are specialized appliances designed to automatically clean tableware, including bowls, chopsticks, plates, dishes, knives, forks, cups, spoons, and chopsticks. They offer the advantages of time-saving, labor-saving, and hygienic cleaning. They reduce workload, improve efficiency, and enhance cleanliness for cooks in restaurants, hotels, and government canteens. A variety of small dishwashers are now available. With the accelerated pace of modern life and the continuous improvement of family living standards, dishwashers are gradually becoming commonplace in ordinary households.

[0003] Dishwashers can be divided into the following types:

[0004] 1. Floor-standing dishwasher: It should be installed and used in a fixed manner and can be placed independently in an empty space in the kitchen.

[0005] 2. Portable dishwasher: No fixed installation is required. When using, just connect the water inlet pipe to the faucet and plug the power cord into the power socket to work. It has the characteristic of flexible placement.

[0006] 3. Convertible dishwasher: It is a front-loading lightweight dishwasher that can be placed in different positions at will. The casters can also be removed and installed in a cabinet for use.

[0007] 4. Top-loading dishwashers: Bowls and dishes are loaded and unloaded from the top. When using the dishwasher, the upper rack should be fully or partially removed. The upper rack of modern dishwashers is connected to the lid and can be folded back or to the sides, making it easier to load and unload dishes.

[0008] 5. Front-loading dishwasher: The door is on the front of the dishwasher and opens downward. When the door is opened, the dish rack is pulled out along with it. Be careful to maintain balance when using it to prevent the rack from tipping over.

[0009] 6. Jet-type dishwashers: A pump pumps water up the dish and sprays it out through the many holes on the spray arms. The spray arms rotate under the reaction force of the water, constantly changing the direction of the water spray, thus achieving the goal of jet cleaning all dishes and cutlery.

[0010] 7. Impeller dishwasher: It uses an impeller installed at the bottom of the machine and driven by an electric motor to splash water in all directions, producing a washing effect on the dishes.

[0011] 8. Sink-type dishwasher: A sink is installed on the top of the machine for preliminary rinsing of dishes. It must be connected to a fixed water supply, drainage and power supply.

[0012] 9. Built-in dishwasher: installed in a cabinet to save space, requires permanent connection to the cold water pipe, hot water pipe, drain pipe and power supply; once installed, it will not be moved.

[0013] In existing dishwashers, the dishwasher has water pipes for water inlet and outlet. The power board box is generally installed at the bottom of the dishwasher and is set near the water pipes. After the power board box and the dishwasher bottom steel plate are installed together with screws and clips, a gap will be left between them. Once the user uses the dishwasher or the dishwasher water system has an abnormality, it may cause the water pipe to leak. Water will enter the power board box through the gap between the power board box and the bottom steel plate, contact the electrical components, and cause the electrical components to be damaged due to moisture, and the dishwasher will not work properly.

[0014] In existing technologies, dishwasher power supply boxes and bottom steel plates are either directly in contact or sealed with O-rings, resulting in a lack of sealing or suboptimal sealing. Others incorporate waterproofing directly onto the power supply box, but this lacks optimal waterproofing and complicates the manufacturing process, increasing costs.

[0015] Chinese patent application number 201821141790.5 discloses an electric control box and a dishwasher. The dishwasher has a water pipe for water inlet and outlet. The electric control box is fixedly mounted on the dishwasher and disposed adjacent to the water pipe. The electric control box comprises: a bottom shell, the bottom shell comprising a bottom plate and a plurality of side walls protruding upward from the side walls of the bottom plate, the plurality of side walls enclosing an opening facing the bottom plate; an electric control assembly mounted on the bottom plate; a cover plate covering the opening of the bottom shell; and a waterproof structure extending toward the bottom plate on the side of the cover plate adjacent to the water pipe. This patent provides a waterproof structure extending toward the bottom plate on the side of the cover plate adjacent to the water pipe. Due to the waterproof structure, water does not come into contact with the electric control assembly. However, in order for the waterproof structure to function, it is also necessary to provide a slot, a protrusion, a notch, a water-retaining rib, and several reinforcing ribs. This makes the electric control box complicated in actual production and increases costs.

[0016] In view of this, the present invention is proposed. Summary of the Invention

[0017] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a sealing gasket with diversified shapes that can achieve sealing of various structures.

[0018] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a sealing gasket, comprising a sealing gasket body with an extended length, and the sealing gasket body is provided with a first sealing part and a second sealing part that at least partially protrude from the upper surface of the sealing gasket body along the extension direction of the sealing gasket body.

[0019] The first sealing portion is disposed on one side in the width direction of the gasket body.

[0020] The second sealing portion is disposed on the other side of the sealing gasket body in the width direction and forms an angle θ with the upper surface of the sealing gasket body, satisfying 90°<θ≤180°.

[0021] Furthermore, a support portion is provided on the sealing gasket body. The support portion is provided at the junction of the sealing gasket body and the second sealing portion and protrudes from the upper surface of the sealing gasket body along the extension direction of the sealing gasket body.

[0022] Preferably, the first sealing portion, the second sealing portion and the supporting portion are all elastic.

[0023] The first sealing portion, the second sealing portion and the supporting portion are all elastic, so that they can be deformed to increase the sealing performance while not being easily damaged.

[0024] Furthermore, a side surface of the supporting portion corresponding to the second sealing portion has an angle with the second sealing portion that is less than or equal to 90°.

[0025] Furthermore, at least one second protrusion is protruding from the upper surface of the second sealing portion, and the second protrusion is inclined toward the first sealing portion.

[0026] Furthermore, the first sealing portion is provided with a plurality of first protrusions protruding toward the outer periphery of the first sealing portion, which have the function of improving sealing performance and preventing falling off.

[0027] A dishwasher base assembly comprises a bottom steel plate on the base and a power board box installed above the bottom steel plate, wherein the sealing gasket as described above is arranged between the bottom steel plate and the power board box.

[0028] Furthermore, the bottom of the power board box is provided with a first concave groove and a second concave groove.

[0029] The bottom steel plate has a plane and an upward inclined surface, the end of the inclined surface contacts the upper concave surface of the second groove, and the inclined surface and the plane have an angle greater than 90°.

[0030] The first groove is assembled correspondingly to the first sealing portion to form a seal between the sealing gasket and the power board box.

[0031] The first groove is assembled correspondingly to the first sealing portion, and plays a certain positioning role in the installation of the sealing gasket.

[0032] The convex portion formed between the first groove and the second groove is assembled correspondingly to the groove formed between the first sealing portion and the second sealing portion. The inclined surface of the bottom steel plate squeezes the second sealing portion to cause deformation. The second sealing portion contacts and presses the convex portion, providing a support force for the second sealing portion to reverse deformation, thereby forming a seal between the sealing gasket and the bottom steel plate.

[0033] The second sealing portion and the upper surface of the sealing gasket body have an included angle of 90°<θ≤180°, which can better cooperate with the inclined surface of the bottom steel plate to improve the sealing performance.

[0034] Preferably, the second sealing portion is at a certain distance from the lower surface of the sealing gasket body, which facilitates the deformation of the second sealing portion when assembled with the inclined surface of the bottom steel plate, thereby further improving the sealing performance.

[0035] Furthermore, a support portion is provided on the sealing gasket body. The support portion is provided at the junction of the sealing gasket body and the second sealing portion and protrudes from the upper surface of the sealing gasket body along the extension direction of the sealing gasket body.

[0036] The side surface of the supporting portion corresponding to the second sealing portion has an angle less than or equal to 90° with the second sealing portion.

[0037] The convex portion formed between the first groove and the second groove is assembled correspondingly to the groove between the first sealing portion and the support portion, and the second groove is assembled correspondingly to the support portion. The inclined surface of the bottom steel plate squeezes the second sealing portion to deform, and the second sealing portion contacts and presses the support portion, providing a support force for the second sealing portion to reverse the deformation, thereby forming a seal between the sealing gasket and the bottom steel plate.

[0038] The support portion and the second sealing portion have an included angle less than or equal to 90°, so that when the second sealing portion is squeezed and deformed, it contacts the support portion and provides a force to counter-deform the second sealing portion.

[0039] The convex portion formed between the first groove and the second groove is assembled correspondingly to the groove formed between the first sealing portion and the second sealing portion or the groove between the first sealing portion and the supporting portion, so as to accurately position the sealing gasket and facilitate installation.

[0040] Furthermore, at least one second protrusion is protruding from the upper surface of the second sealing portion, and the second protrusion is inclined toward the first sealing portion.

[0041] The convex portion formed between the first groove and the second groove is assembled correspondingly to the groove formed between the first sealing portion and the second sealing portion. The inclined surface of the bottom steel plate squeezes the second sealing portion to cause deformation. The second protrusion contacts and presses the convex portion, providing support force for the second sealing portion to reverse deformation, thereby forming a seal between the sealing gasket and the bottom steel plate.

[0042] Alternatively, the convex portion formed between the first groove and the second groove is assembled correspondingly to the groove between the first sealing portion and the support portion, the second groove is assembled correspondingly to the support portion, the inclined surface of the bottom steel plate squeezes the second sealing portion to deform, the second convex portion contacts and presses the support portion, providing a support force for the second sealing portion to reverse the deformation, thereby forming a seal between the sealing gasket and the bottom steel plate.

[0043] The second protrusion is tilted toward the first sealing portion so that when the second sealing portion is squeezed and deformed, the second protrusion can contact and press against the convex portion or the supporting portion to provide a supporting force for the second sealing portion to resist deformation.

[0044] Furthermore, the first sealing portion is provided with a plurality of first protrusions protruding toward the outer periphery of the first sealing portion.

[0045] The first groove is assembled correspondingly to the first sealing portion, and the inner wall of the first groove squeezes the first protrusion to deform, thereby forming a seal between the sealing gasket and the power board box.

[0046] The first protrusion is squeezed and deformed, so that the seal between the sealing gasket and the power board box is tightened, thereby improving the sealing performance.

[0047] By installing the sealing gasket in the gap between the power board box and the bottom steel plate of the dishwasher, using the first sealing part to form a seal between the sealing gasket and the power board box, and using the second sealing part or the second sealing part and the supporting part to form a seal between the sealing gasket and the bottom steel plate, the sealing gasket can seal the gap between the power board box and the bottom steel plate, preventing water from entering the power board box through the gap, damaging electrical components, and affecting the use of the dishwasher.

[0048] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0049] The present invention provides a sealing gasket with diversified shapes, which can realize sealing of various structures.

[0050] By installing the sealing gasket in the gap between the power board box and the bottom steel plate of the dishwasher, using the first sealing part to form a seal between the sealing gasket and the power board box, and using the second sealing part or the second sealing part and the supporting part to form a seal between the sealing gasket and the bottom steel plate, the sealing gasket can seal the gap between the power board box and the bottom steel plate, preventing water from entering the power board box through the gap, damaging electrical components, and affecting the use of the dishwasher.

[0051] The first sealing portion, the second sealing portion and the supporting portion are all elastic, so that they can be deformed to increase the sealing performance while not being easily damaged.

[0052] The first groove is assembled correspondingly to the first sealing portion, and plays a certain positioning role in the installation of the sealing gasket.

[0053] The convex portion formed between the first groove and the second groove is assembled correspondingly to the groove formed between the first sealing portion and the second sealing portion or the groove between the first sealing portion and the supporting portion, so as to accurately position the sealing gasket and facilitate installation.

[0054] The first protrusion is squeezed and deformed, so that the seal between the sealing gasket and the power board box is tightened, thereby improving the sealing performance.

[0055] The sealing gasket provided by the present invention has various shapes, can realize sealing of various structures, has elasticity, improves sealing performance, will not be easily damaged, and has good durability.

[0056] The present invention also provides a dishwasher bottom assembly with the above-mentioned sealing gasket, which can seal the gap between the power board box and the bottom steel plate through the sealing gasket. It has the characteristics of simple structure, easy operation, high sealing, high safety, and improved user experience.

[0057] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0059] Figure 1 Schematic diagram of the overall structure of the sealing gasket of the present invention;

[0060] Figure 2 This invention Figure 1 An enlarged schematic diagram of the cross-sectional structure along line AA;

[0061] Figure 3 This is a schematic structural diagram of the bottom assembly of the dishwasher of the present invention when no sealing gasket is installed;

[0062] Figure 4 This invention Figure 3 The enlarged cross-sectional view of the structure of part B in the middle;

[0063] Figure 5 1 is a schematic structural diagram of the bottom assembly of the dishwasher of the present invention when a sealing gasket is installed;

[0064] Figure 6 This invention Figure 5 Enlarged cross-sectional view of the structure of part C in the middle.

[0065] In the figure: 1. first sealing part; 2. second sealing part; 3. supporting part; 4. first protrusion; 5. second protrusion; 6. first groove; 7. second groove; 8. power board box; 9. electrical components; 10. bottom steel plate; 11. sealing gasket body.

[0066] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0068] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0069] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to detachable, mechanical, or electrical connections; they may be direct or indirect via an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0070] like Figures 1 to 6 As shown, the present invention provides a sealing gasket, comprising a sealing gasket body 11, a first sealing portion 1, a second sealing portion 2 and a supporting portion 3; a first protrusion 4 is provided on the first sealing portion 1; and a second protrusion 5 is provided on the second sealing portion 2.

[0071] The present invention also provides a dishwasher bottom assembly with the above-mentioned sealing gasket, including a bottom steel plate 10 and a power board box 8 on the base; the power board box 8 is provided with a first groove 6 and a second groove 7, and an electrical component 9 is installed in the power board box 8; the bottom steel plate 10 has a flat surface and an upward inclined surface.

[0072] As an embodiment, the present invention provides a sealing gasket and a dishwasher base assembly having the sealing gasket.

[0073] like Figure 1 and Figure 2As shown, the sealing gasket is an annular closed structure with a certain extension length and curvature.

[0074] The sealing gasket comprises a sealing gasket body 11 with an extended length. The sealing gasket body 11 is provided with a first sealing portion 1 and a second sealing portion 2 which at least partially protrude from the upper surface of the sealing gasket body 11 along the extending direction of the sealing gasket body 11 .

[0075] The first sealing portion 1 is provided on one side of the gasket body 11 in the width direction.

[0076] The first sealing portion 1 is provided with a plurality of first protrusions 4 protruding toward the outer periphery of the first sealing portion 1 .

[0077] Preferably, the first protrusion 4 is a convex strip, similar to a barb structure, or may be other structures as long as it can improve the sealing and prevent falling off.

[0078] The second sealing portion 2 is provided on the other side of the sealing gasket body 11 in the width direction and forms an angle θ with the upper surface of the sealing gasket body 11 , satisfying 90°<θ≤180°.

[0079] At least one second protrusion 5 is protruded from the upper surface of the second sealing portion 2 , and the second protrusion 5 is inclined toward the first sealing portion 1 ; the second sealing portion 2 is at a certain distance from the lower surface of the sealing gasket body 11 .

[0080] The sealing gasket body 11 is further provided with a support portion 3 , which is provided at the junction of the sealing gasket body 11 and the second sealing portion 2 and protrudes from the upper surface of the sealing gasket body 11 along the extending direction of the sealing gasket body 11 .

[0081] Preferably, the first sealing portion 1 , the second sealing portion 2 and the supporting portion 3 are all elastic.

[0082] The side surface of the supporting portion 3 corresponding to the second sealing portion 2 has an angle less than or equal to 90° with the second sealing portion 2 .

[0083] like Figure 3 and Figure 4 As shown, the dishwasher base assembly includes a bottom steel plate 10 on the base and a power board box 8 installed above the bottom steel plate 10. Electrical components 9 are installed in the power board box 8, and there is a gap between the bottom steel plate 10 and the power board box 8.

[0084] The bottom of the power board box 8 is provided with a first concave groove 6 and a second concave groove 7 .

[0085] The bottom steel plate 10 has a flat surface and an upward inclined surface. The end of the inclined surface contacts the upper concave surface of the second groove 7. The inclined surface and the flat surface have an angle greater than 90°.

[0086] like Figure 5 and Figure 6 As shown, a sealing gasket as described above is installed in the gap between the bottom steel plate 10 and the power board box 8.

[0087] The first groove 6 is assembled correspondingly to the first sealing portion 1 , and the inner wall of the first groove 6 squeezes the first protrusion 4 to deform, thereby forming a seal between the sealing gasket and the power board box 8 .

[0088] The first protrusion 4 is squeezed and deformed, so that the seal between the sealing gasket and the power board box 8 is tightened, thereby improving the sealing performance.

[0089] The convex portion formed between the first groove 6 and the second groove 7 is assembled correspondingly to the groove between the first sealing part 1 and the support part 3, and the second groove 7 is assembled correspondingly to the support part 3. The inclined surface of the bottom steel plate 10 squeezes the second sealing part 2 to deform, and the second protrusion 5 contacts and presses the support part 3, providing a support force for the second sealing part 2 to reverse the deformation, thereby forming a seal between the sealing gasket and the bottom steel plate 10.

[0090] The corners of the gasket are set to be arc-shaped in order to minimize friction during installation or extrusion deformation and abutment, thereby increasing the service life of the gasket without affecting the sealing performance of the gasket.

[0091] By installing the sealing gasket in the gap between the dishwasher power board box 8 and the bottom steel plate 10, using the first sealing part 1 to form a seal between the sealing gasket and the power board box 8, and using the second sealing part 2 and the supporting part 3 to form a seal between the sealing gasket and the bottom steel plate 10, the sealing gasket can seal the gap between the power board box 8 and the bottom steel plate 10, preventing water from entering the power board box 8 through the gap, damaging the electrical components 9, and affecting the use of the dishwasher.

[0092] As an embodiment, the present invention provides a sealing gasket and a dishwasher base assembly having the sealing gasket.

[0093] The sealing gasket comprises a sealing gasket body 11 , on which a first sealing portion 1 and a second sealing portion 2 are provided.

[0094] The first sealing portion 1 has / does not have the first protrusion 4 , and the second sealing portion 2 has / does not have the second protrusion 5 .

[0095] The first groove 6 is assembled correspondingly to the first sealing portion 1 to form a seal between the sealing gasket and the power board box 8 .

[0096] The convex portion formed between the first groove 6 and the second groove 7 is assembled correspondingly to the groove formed between the first sealing portion 1 and the second sealing portion 2. The inclined surface of the bottom steel plate 10 squeezes the second sealing portion 2 to cause deformation. The second sealing portion 2 or the second protrusion 5 contacts and presses the convex portion, providing a support force for the second sealing portion 2 to reverse the deformation, thereby forming a seal between the sealing gasket and the bottom steel plate 10.

[0097] As an embodiment, the present invention provides a sealing gasket and a dishwasher base assembly having the sealing gasket.

[0098] The sealing gasket comprises a sealing gasket body 11 , on which a first sealing portion 1 , a second sealing portion 2 and a supporting portion 3 are provided.

[0099] The first sealing portion 1 has / does not have the first protrusion 4 , and the second sealing portion 2 has / does not have the second protrusion 5 .

[0100] The first groove 6 is assembled correspondingly to the first sealing portion 1 to form a seal between the sealing gasket and the power board box 8 .

[0101] The convex portion formed between the first groove 6 and the second groove 7 is assembled correspondingly to the groove between the first sealing part 1 and the support part 3, and the second groove 7 is assembled correspondingly to the support part 3. The inclined surface of the bottom steel plate 10 squeezes the second sealing part 2 to deform it, and the second sealing part 2 or the second protrusion 5 contacts and presses the support part 3, providing a support force for the second sealing part 2 to reverse the deformation, thereby forming a seal between the sealing gasket and the bottom steel plate 10.

[0102] As an embodiment, the present invention provides a sealing gasket and a dishwasher base assembly having the sealing gasket. The sealing gasket can also be a non-closed structure with a certain extension length and / or curvature, which can be changed according to actual assembly needs to match the structure of the dishwasher base assembly.

[0103] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A dishwasher base assembly, characterized by: It comprises a bottom steel plate (10) on the base and a power board box (8) installed above the bottom steel plate (10), wherein a sealing gasket is provided between the bottom steel plate (10) and the power board box (8); The sealing gasket comprises a sealing gasket body (11) having an extended length, wherein the sealing gasket body (11) is provided with a first sealing portion (1), a second sealing portion (2) and a supporting portion (3) which at least partially protrude from the upper surface of the sealing gasket body (11) along an extending direction of the sealing gasket body (11); The bottom of the power board box (8) is provided with a first concave groove (6) and a second concave groove (7); The bottom steel plate (10) has a plane and an upwardly inclined surface, the end of the inclined surface contacts the upper concave surface of the second groove (7), and the inclined surface and the plane have an angle greater than 90°; The first groove (6) is assembled correspondingly to the first sealing portion (1) to form a seal between the sealing gasket and the power board box (8); The support portion (3) is provided at the junction of the sealing gasket body (11) and the second sealing portion (2), and protrudes from the upper surface of the sealing gasket body (11) along the extension direction of the sealing gasket body (11); the side surface of the support portion (3) corresponding to the second sealing portion (2) has an angle less than or equal to 90° with the second sealing portion (2); The second sealing portion (2) is arranged on one side of the sealing gasket body (11) in the width direction and forms an angle θ with the upper surface of the sealing gasket body (11); The convex portion formed between the first groove (6) and the second groove (7) is assembled correspondingly to the groove formed between the first sealing portion (1) and the supporting portion (3), the inclined surface of the bottom steel plate (10) squeezes the second sealing portion (2) to deform, and the second sealing portion (2) contacts and presses against the supporting portion (3), providing a supporting force for the second sealing portion (2) to resist deformation, thereby forming a seal between the sealing gasket and the bottom steel plate (10).

2. The dishwasher base assembly according to claim 1, characterized in that: The first sealing portion (1) is provided with a plurality of first protrusions (4) protruding toward the outer periphery of the first sealing portion (1); The first groove (6) is assembled correspondingly to the first sealing portion (1), and the inner wall of the first groove (6) squeezes the first protrusion (4) to deform, thereby forming a seal between the sealing gasket and the power board box (8).

3. The dishwasher base assembly according to claim 2, characterized in that: The first sealing portion (1) is arranged on the other side of the sealing gasket body (11) in the width direction.

4. A dishwasher base assembly according to any one of claims 1-3, characterized in that: The included angle θ between the second sealing portion (2) and the upper surface of the sealing gasket body (11) satisfies 90°<θ≤180°.

5. A dishwasher base assembly according to any one of claims 1 to 3, characterized in that: The first sealing portion (1), the second sealing portion (2) and the supporting portion (3) are all elastic.

6. A dishwasher base assembly according to any one of claims 1-3, characterized in that: At least one second protrusion (5) is protruding from the upper surface of the second sealing portion (2), and the second protrusion (5) is arranged obliquely toward the first sealing portion (1).

7. The dishwasher base assembly according to claim 6, characterized in that: The convex portion formed between the first groove (6) and the second groove (7) is assembled correspondingly to the groove formed between the first sealing portion (1) and the supporting portion (3); the inclined surface of the bottom steel plate (10) squeezes the second sealing portion (2) to deform; the second convex portion (5) contacts and presses the supporting portion (3), providing a supporting force for the second sealing portion (2) to resist deformation, thereby forming a seal between the sealing gasket and the bottom steel plate (10).

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