Sealing cover of dishwasher and dishwasher

Abstract

The present invention provides a sealing cover for a dishwasher and a dishwasher, which are used to seal the upper opening of an inner container of the dishwasher. The sealing cover includes a cover body, a frame arranged on the outside of the cover body, and a sealing member. The cover body and the frame are flexibly connected, and the sealing member connects the cover body and the frame. By setting the flexible connection between the cover body and the frame, that is, the cover body and the frame are not directly fixed, but connected to the cover body and the frame via the sealing member, that is, the sealing member acts as a flexible connection, and a slight relative displacement can be allowed between the cover body and the frame. During spray washing, washing liquid is sprayed onto the cover body of the sealing cover. Under the impact of the water flow, the cover body can transfer force to the flexible connection, reducing the force transferred to the frame, avoiding the influence of the cover body vibration caused by the water flow on the sealing function of the sealing member, and the flexible connection also acts as a shock absorber.

Description

Technical Field

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

[0002] With the improvement of living standards, consumers have higher and higher requirements for the quality of life, and thus have higher and higher requirements for product quality, performance, user-friendly use, intelligent operation, etc. As an excellent product, dishwashers have gradually entered people's lives.

[0003] A drawer-type dishwasher usually includes a cabinet and a pull-out drawer. The drawer is provided with an inner tank with an open top. In order to prevent washing water from spraying out of the inner tank and flowing into the area between the inner tank and the cabinet during the washing process, a sealing cover is provided to seal the upper opening of the inner tank. When washing dishes, the sealing cover seals the upper opening of the inner tank to prevent washing water from leaking from the inner tank.

[0004] During operation, a drawer-type dishwasher's sealing lid covers and seals the inner container. After the drawer dishwasher's operation is complete, the lid is detached from the inner container to allow dishware to be removed and placed in. The lid is equipped with an annular seal that is assembled to the lid. However, the lid is currently a fixed assembly. During operation, the inner container and the lid vibrate under the impact of the motor and the spraying water. Over extended use, the lid often fails to seal properly, which can easily lead to malfunctions or even failure of the dishwasher.

[0005] Moreover, the existing seal and sealing cover have poor assembly effect. Since the sealing ring has great elasticity, it is difficult to control the length change when the sealing ring is assembled and fixed to the groove on the sealing cover. It is often partially over-compressed or over-stretched, resulting in uneven sealing ring, which not only easily causes sealing failure, but also accelerates the aging of the local part of the sealing ring, and also affects the appearance of the entire barrel cover. In order to ensure the embedding quality of the sealing ring, a lot of man-hours are required, which affects the production efficiency of the barrel cover and greatly increases the production cost. Summary of the Invention

[0006] In view of the above problems existing in the prior art, the present invention provides a sealing cover for a dishwasher, wherein the cover body and the frame are flexibly connected to increase the sealing performance.

[0007] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0008] A sealing cover for a dishwasher is used to seal the upper opening of the inner container of the dishwasher. It comprises a cover body, a frame arranged outside the cover body, and a sealing member. The cover body and the frame are flexibly connected, and the sealing member connects the cover body and the frame.

[0009] Furthermore, the sealing member has a first connecting portion fixedly connected to the cover body, a second connecting portion fixedly connected to the frame, and a flexible connecting portion connecting the first connecting portion and the second connecting portion.

[0010] Furthermore, the flexible connection portion is arranged to be inclined outward and upward, or to be inclined outward and downward.

[0011] Furthermore, a first folded edge is provided at an angle on the outer side of the cover body, and the first connecting portion includes a first inclined portion matched with the first folded edge, and a first planar portion bent inwardly and extending along the upper end of the first inclined portion.

[0012] Furthermore, the first plane portion is connected and fixed to the lower end surface of the cover body.

[0013] Furthermore, a second folded edge is provided on the inner side of the frame at an angle, and the second connecting portion has a second inclined portion that matches and connects with the second folded edge.

[0014] Furthermore, the first inclined portion and the second inclined portion have the same inclination direction.

[0015] Furthermore, the first inclined portion and the flexible connecting portion have inclination directions opposite to each other.

[0016] Furthermore, the angle between the first folded edge and the horizontal plane is 45° to 75°.

[0017] Preferably, the angle between the first folded edge and the horizontal plane is 55° to 65°.

[0018] Furthermore, the sealing member further includes a sealing portion connected to the second connecting portion, the sealing portion having an extending portion bent and extended along a lower end of the second connecting portion, and a sealing lip bent and extended along a lower end of the extending portion.

[0019] Furthermore, downwardly protruding lips are provided at both ends of the lower end surface of the sealing lip. When the sealing cover is buckled on the inner container of the dishwasher, the sealing portion is deformed and the lips are attached to the inner container.

[0020] Furthermore, the cover body, the frame and the seal are fixedly connected by two-color injection molding.

[0021] Furthermore, the cover body is assembled and fixed to the sealing member, and the frame is assembled and fixed to the sealing member.

[0022] Furthermore, at least one first assembly claw is provided on the first connecting portion, and a first through hole matching the first assembly claw is opened on the cover body. The first assembly claw has a first rod portion located in the first through hole, and a first claw portion stopped at the end face of the first through hole.

[0023] Furthermore, at least one second assembly claw is provided on the second connecting portion, and a second through hole matching the second assembly claw is opened on the frame. The second assembly claw has a second rod portion located in the second through hole, and a second claw portion stopped at the end face of the second through hole.

[0024] Furthermore, the frame includes a frame body, a second folding edge obliquely arranged along the inner side of the frame body, and an outer retaining edge extending up and down along the outer side of the frame body.

[0025] Furthermore, the frame further includes a reinforcing rib extending upward along the upper end surface of the frame body, and the upper end of the reinforcing rib is flush with the upper end of the second folded edge.

[0026] Based on the sealing cover of the dishwasher described above, the present invention further provides a dishwasher having the sealing cover described above, wherein the cover body and the frame are flexibly connected to increase the sealing property and improve the sealing performance.

[0027] A dishwasher comprises an inner container and the above-mentioned sealing cover.

[0028] The sealing cover of the dishwasher provided by the present invention is configured such that a flexible connection is provided between the cover body and the frame, that is, the cover body and the frame are not fixedly connected, and the cover body and the frame are not directly fixed, but are connected to the cover body and the frame via the sealing member, that is, the sealing member acts as a flexible connection, and a slight relative displacement can be allowed between the cover body and the frame; during spray washing, washing liquid is sprayed onto the cover body of the sealing cover, and the cover body can transfer force to the flexible connection under the impact of the water flow, thereby reducing the force transferred to the frame, avoiding the influence of the cover body vibration caused by the water flow on the sealing effect of the seal, and at the same time, the flexible connection also acts as a shock absorber.

[0029] Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of an embodiment of a sealing cover for a dishwasher proposed in the present invention;

[0031] Figure 2 for Figure 1 A magnified cross-sectional view of the structure after assembly;

[0032] Figure 3for Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0033] Figure 4 for Figure 3 Schematic diagram of the structure of the middle sealing cover;

[0034] Figure 5 for Figure 4 Schematic diagram of the structure after removing the seal;

[0035] Figure 6 for Figure 3 An enlarged structural diagram of the middle seal;

[0036] Figure 7 for Figure 1 A partially enlarged structural diagram of the middle frame;

[0037] Figure 8 A schematic cross-sectional view of a second method for fixing the seal;

[0038] Figure 9 for Figure 1 A schematic diagram of the enlarged structure of the middle liner;

[0039] Figure 10 for Figure 9 Schematic diagram of the cross-section structure;

[0040] Figure 11 for Figure 10 Schematic diagram of the enlarged structure of the middle C region;

[0041] Figure 12 for Figure 11 Schematic diagram of the enlarged structure of the D region in the middle;

[0042] Figure 13 for Figure 11 Schematic diagram of the enlarged cross-section structure of the middle top frame. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0044] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside", "upper", "lower", "left", "right", etc. are based on the positional relationships shown in the accompanying drawings, with the side closer to the user in the normal use state of the product being the "front" and the side away from the user being the "rear". The terms 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] See Figures 1-13 , is an embodiment of the sealing cover of the dishwasher proposed in the present invention, the dishwasher includes a box body 1, a retractable inner pot 2 accommodated in the box body 1, and a sealing cover 3 for sealing the upper opening of the inner pot 2; the sealing cover 3 includes a cover body 31, a frame 32 arranged on the outside of the cover body 31, and a sealing member 33, wherein the cover body 31 and the frame 32 are flexibly connected, and the sealing member 33 connects the cover body 31 and the frame 32. By setting a flexible connection between the cover 31 and the frame 32, that is, the cover 31 and the frame 32 are not fixed, the cover 31 and the frame 33 are not directly fixed, but connected by the seal 33. In other words, the seal 33 acts as a flexible connection, and there can be a slight relative displacement between the cover 31 and the frame 32. During spray washing, the washing liquid is sprayed onto the cover 31 of the sealing cover 3. The cover 31 can transfer force to the flexible connection under the impact of the water flow, reducing the force transferred to the frame 33, avoiding the impact of the vibration of the cover 31 caused by the water flow on the sealing effect of the seal 33. At the same time, the flexible connection also plays a shock-absorbing role. A sealing portion 334 is provided on the outside of the seal 33 to seal the sealing cover 3 and the inner liner 2. The sealing portion 334 is located on one side of the frame 33.

[0047] In this embodiment, see Figure 3 and Figure 6As shown, the sealing member 33 includes a first connecting portion 331 fixedly connected to the cover 31, a second connecting portion 332 fixedly connected to the frame 32, and a flexible connecting portion 333 connecting the first connecting portion 331 and the second connecting portion 332. The sealing member 33 is provided with the first connecting portion 331 to achieve a fixed connection between the sealing member 33 and the cover 31; the second connecting portion 332 is provided to achieve a fixed connection between the sealing member 33 and the frame 32; the first connecting portion 331 and the second connecting portion 332 are spaced apart and connected by the flexible connecting portion 333; one end of the flexible connecting portion 333 is connected to the first connecting portion 331 and the other end is connected to the second connecting portion 332, thereby achieving a flexible connection between the cover 31 and the frame 32; the sealing portion 334 is connected to the second connecting portion 332; an angle is formed between the flexible connecting portion 333 and the first connecting portion 331, and an angle is formed between the flexible connecting portion 333 and the second connecting portion 332, which helps to improve the structural strength of the flexible connecting portion 333.

[0048] The flexible connection portion 333 can be configured in a variety of ways. FIG6 illustrates a first configuration in which the connection portion 333 is tilted outward and upward, meaning that the vertical cross-section of the flexible connection portion 333 is an inclined plane. During the dishwasher's spray-washing operation, the cover plate 3 tends to move slightly upward, causing the flexible connection portion 333 to be compressed and its tilt angle to decrease. This tilted configuration enhances the structural strength of the flexible connection portion 333 and increases the range of motion of the cover body 31. Furthermore, the tendency for the flexible connection portion 333 to be compressed is more beneficial than its tendency to be stretched, extending its service life. A second configuration in which the connection portion 333 is tilted outward and downward also enhances its structural strength and increases the range of motion of the cover body 31. A third configuration in which the connection portion 333 is horizontally positioned allows the cover plate 3 to move slightly upward during the dishwasher's spray-washing operation, causing the flexible connection portion 333 to be stretched, ensuring a flexible connection between the cover plate 31 and the frame 32.

[0049] See also Figure 5As shown, in order to better achieve the connection and fixation between the cover body 31 and the first connecting portion 331, an inclined first folding edge 311 is provided on the outer side of the cover body 31. The first connecting portion 331 has a first inclined portion 3311 that matches and connects to the first folding edge 311, and a first flat portion 3312 that bends inward and extends along the upper end of the first inclined portion 3311. The first flat portion 3312 is connected and fixed to the lower end surface of the cover body 31. The provision of the inclined first folding edge 311 is conducive to increasing the contact area between the first inclined portion 3311 and the cover body 31, thereby improving the firmness of the fixation. The provision of the first inclined portion 3311 at an angle and the first flat portion 3312 at a horizontal position is conducive to increasing the structural strength. In this embodiment, the first folding edge 311 is inclined outward and downward. In other embodiments, the first folding edge 311 can also be inclined outward and upward.

[0050] A second, angled folded edge 321 is provided on the inner side of the frame 32. The second connecting portion 332 has a second inclined portion 3321 that matches and connects to the second folded edge 321. The angled second folded edge 321 increases the contact area between the second inclined portion 3211 and the cover 31, improving the securement of the seal. Preferably, the first folded edge 311 and the second folded edge 321 have the same inclination direction, that is, the first inclined portion 3311 and the second inclined portion 3321 have the same inclination direction. However, when the flexible connecting portion 333 is angled, it is tilted in the opposite direction to the first inclined portion 3311 and the second inclined portion 3321, which helps to improve the structural strength and reset ability of the seal 33. The angle between the first folded edge 321 and the horizontal plane is 45° to 75°; preferably, the angle between the first folded edge 321 and the horizontal plane is 55° to 65°. Preferably, the first folded edge 311 and the second folded edge 321 are parallel.

[0051] See also Figure 6 As shown, the sealing portion 334 of the sealing member 33, connected to the second connecting portion 332, provides a seal between the inner liner 2 and the sealing cover 3. The sealing portion 334 includes an extension portion 3341 that extends along the lower end of the second connecting portion 332 and a sealing lip 3342 that extends along the lower end of the extension portion 3341. The extension portion 3341 and the sealing lip 3342 are inclined in opposite directions, while the extension portion 3341 and the second inclined portion 3321 are inclined in the same direction. The angle between the extension portion 3341 and the horizontal plane is smaller than the angle between the second inclined portion 3321 and the horizontal plane. By providing both the extension portion and the sealing lip with an inclined extension, the sealing performance and deformation recovery capability are enhanced. After the sealing cover 3 is fastened to the upper opening of the inner liner 2, the sealing portion 334 is squeezed and deformed, and the extension portion 3341 and the second inclined portion 3321 are pressed together, forcing the sealing lip 3342 into contact with the open end of the inner liner 2, ensuring a tight seal.

[0052] See also Figure 7 As shown, downwardly projecting lip protrusions 33421 are provided at both ends of the lower end surface of the sealing lip 3342. These protrusions 33421 have an arcuate surface, with the central angle of the arc corresponding to the cross-section greater than 180°. In other words, the protrusion height of the protrusion 33421 is greater than its radius. The larger protrusion height of the protrusion 33421 increases the height of the squeeze after the sealing cover 3 is engaged, improving the sealing performance. When the sealing cover 3 is engaged with the dishwasher inner container 2, the sealing portion 334 deforms, and the protrusion 33421 abuts against the inner container 2, ensuring a tight seal.

[0053] Regarding the connection and fixing method of the sealing member 3, the cover 31 and the frame 32, the first method is as follows: Figure 4 As shown, the cover 31 and the frame 32 are fixedly connected to the seal 33 by double-color injection molding, that is, the cover 31 and the frame 32 are directly connected to the seal 33 during injection molding; ensuring that the first connecting portion 331 and the cover 31, and the second connecting portion 332 and the frame 32 are tightly connected, ensuring a firm fixation. Figure 8 As shown, the cover 31 and the seal 33 are assembled and fixed together, and the frame 32 and the seal 33 are assembled and fixed together. A first assembly claw 3313 is provided on the first connecting portion 331. A first through-hole is provided on the cover 31 to match the first assembly claw 3313. The first assembly claw 3313 has a first rod 33131 located in the first through-hole and a first claw 33132 that stops at the end face of the first through-hole. The first claw 33132 stops at the upper end of the first through-hole, ensuring stability after the transfer. Two second assembly claws 3323 are provided on the second connecting portion 332. A second through-hole is provided on the frame 32 to match the second assembly claws 3323. The second assembly claw 3323 has a second rod 33231 located in the second through-hole and a second claw 33232 that stops at the end face of the second through-hole.

[0054] For the structural setting of the frame 32, see Figure 9As shown, the frame 32 includes a frame body 320, a second folded edge 321 arranged obliquely along the inner side of the frame body 320, and an outer rib 322 extending vertically along the outer side of the frame body 320. The outer rib 322 is stopped on the outer side of the inner liner 2 to enhance the positioning of the sealing cover 3 and improve the sealing effect. The frame 32 also includes a reinforcing rib 323 extending upward along the upper end surface of the frame body 320. The upper end of the reinforcing rib 323 is flush with the upper end of the second folded edge 321, and the ratio of the height of the reinforcing rib 323 to the thickness of the frame body 320 is 1.5 to 2.5. The reinforcing rib 323 is preferably configured to include a first reinforcing rib arranged parallel to the outer rib 322 and a second reinforcing rib arranged perpendicular to the outer rib 322. The inner side of the second reinforcing rib is connected to the second folded edge 321 and the outer side is connected to the outer rib 322. The provision of the reinforcing rib 323 helps to increase the structural strength and stability of the frame 32.

[0055] The structure of the dishwasher tank 2 is shown in FIG. Figure 9 As shown, the inner liner 2 includes a liner body 21 and a top frame 22 arranged at the open end of the liner body 21, the top frame 22 includes a horizontally arranged top frame 221, an assembly portion 222 arranged at the lower side of the top frame 221, and a water retaining edge 223 extending upward along the outer side of the top frame 221, the assembly portion 222 is assembled with the liner body 21 of the inner liner 2, and the height of the water retaining edge 223 is greater than the thickness of the top frame 221, that is, the size of the top frame 221 in the up and down direction. By setting the water retaining edge 223, when there are water droplets on the upper surface of the top frame 22, the water retaining edge 223 is set on the outside to prevent the water droplets from flowing outward, thereby preventing the water droplets from flowing to the outside of the inner liner 2 and ensuring safety; and the height of the water retaining edge 223 is set to be greater than the thickness of the top frame 221, thereby ensuring the setting of the height of the water retaining edge 223, ensuring the water retaining effect of the water retaining edge 223, and preventing the height of the water retaining edge 223 from being too low and failing to play a good role in blocking the water flow. The arc-shaped transition between the water retaining edge 223 and the upper end surface of the top frame 221 is conducive to the backflow of water droplets on the upper end surface of the top frame 221, avoiding water accumulation at the connection portion between the water retaining edge 223 and the top frame 221.

[0056] See also Figure 11 As shown, the top frame 22 also includes a lower extension 224 extending downwardly from the inner side of the top frame body 221. The lower extension 224 has a curved surface, which increases the smoothness of the inner side, improves the aesthetics, prevents injuries when removing and placing tableware, and facilitates the flow of water droplets. The lower extension 224 transitions to the upper end surface of the top frame body 221 in an arc-shaped manner, and the lower extension 224 transitions to the lower end surface of the top frame body 221 in an arc-shaped manner.

[0057] The top frame 22 also includes a decorative panel 225 extending downwardly from the outer side of the top frame body 221. The height of the decorative panel 225 is 2 to 4 times the thickness of the top frame body 221, and preferably 3 times the thickness of the top frame body 221. The decorative panel 225 serves to conceal the assembly gap between the body 21 and the top frame 22, thereby enhancing the aesthetics.

[0058] See also Figure 13 As shown, the assembly portion 222 comprises two parallel and equal-height assembly plates 2221 extending downward from the lower side of the top frame 221, and a receiving groove 2222 located between the two assembly plates 2221. The upper end of the gallbladder body 21 is located within the receiving groove 2222. The height of the assembly plates 2221 is greater than the thickness of the top frame 221, or in other words, the vertical dimension of the assembly plates 2221 is greater than the vertical dimension of the top frame 221. The thickness of the top frame 221 is 2 to 3 times the thickness of the assembly plates 2221, or in other words, the vertical dimension of the top frame 221 is 2 to 3 times the inner and outer dimension of the assembly plates 2221. The thicker top frame 221 helps ensure the structural strength of the top frame 22 and supports the pressing force after the sealing cover is fastened. Furthermore, the thinner assembly plates 2221 help to slightly deform when assembled and fixed to the gallbladder body 21, thereby improving assembly efficiency.

[0059] In this embodiment, see Figure 12 As shown, the height of the assembly plate 2221 is greater than or equal to the height of the decorative plate 225, and the bladder body 21 is assembled and fixed on the assembly portion 222; specifically, a bayonet 22211 is provided on the assembly plate 2221 located on the outside, and a downward folded edge 211 is provided at the upper end of the bladder body 21, and the end of the folded edge 211 is engaged in the bayonet 22211.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A sealing cover for a dishwasher, used to seal the upper opening of the inner container of the dishwasher, characterized in that: The cover comprises a cover body, a frame arranged on the outside of the cover body, and a sealing member, wherein the cover body and the frame are flexibly connected, and the sealing member connects the cover body and the frame; There may be relative displacement between the cover body and the frame, and the sealing member has a first connection portion fixedly connected to the cover body, a second connection portion fixedly connected to the frame, and a flexible connection portion connecting the first connection portion and the second connection portion; there is an angle between the flexible connection portion and the first connection portion, and the flexible connection portion is arranged at an angle.

2. The sealing cover according to claim 1, wherein: The flexible connection portion is tilted outward and upward. Or it can be set tilted outward and downward.

3. The sealing cover according to claim 1, wherein: A first folding edge is provided on the outer side of the cover body. The first connecting portion includes a first inclined portion matched with the first folding edge and a first plane portion bent inwardly and extending along the upper end of the first inclined portion.

4. The sealing cover according to claim 3, wherein: A second folded edge is provided at an angle on the inner side of the frame, and the second connecting portion has a second inclined portion matched with the second folded edge.

5. The sealing cover according to claim 4, wherein: The first inclined portion and the second inclined portion have the same inclination direction.

6. The sealing cover according to claim 1, wherein: The sealing member further includes a sealing portion connected to the second connecting portion, wherein the sealing portion includes an extending portion bent and extended along a lower end of the second connecting portion, and a sealing lip bent and extended along a lower end of the extending portion.

7. The sealing cover according to claim 6, wherein: Both ends of the lower end surface of the sealing lip are provided with downwardly protruding lip protrusions. When the sealing cover is buckled on the inner container of the dishwasher, the sealing portion is deformed and the lip protrusions are attached to the inner container.

8. The sealing cover according to claim 1, wherein: The cover body is assembled and fixed to the seal, and at least one first assembly claw is provided on the first connecting portion. A first through hole matching the first assembly claw is opened on the cover body, and the first assembly claw has a first rod portion located in the first through hole, and a first claw portion stopped at the end face of the first through hole.

9. A dishwasher, characterized in that: It comprises an inner liner and a sealing cover according to any one of claims 1 to 8.

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