Sealing strip and dish washing machine

Abstract

The sealing strip is elastic and comprises a sealing part, the cross section of the sealing part comprises a bottom wall, a first side wall, a second side wall and a top wall, the first side wall and the second side wall are of a V-shaped structure, an opening of the V-shaped structure faces the outer side, the two ends of the first side wall and the two ends of the second side wall are connected to the top wall and the bottom wall respectively, and the top wall is connected with the bottom wall. A closed first cavity is defined by the first cavity and is filled with gas; and the mounting part is used for being connected with an external component. The first side wall and the second side wall of the sealing strip are arranged in a V-shaped structure, an opening of the V-shaped structure faces the outer side, when the top wall is extruded, the top wall is sunken inwards, and the first side wall and the second side wall deform in the direction close to each other by means of elasticity of the first side wall and the second side wall, so that the door frame is clamped, and the purpose of sealing is achieved; the door has a good buffering effect, noise can be reduced when the door is opened and closed, and meanwhile the inflated first cavity further has a good sound insulation effect.

Description

Technical Field

[0001] This utility model relates to a sealing strip and a dishwasher. Background Technology

[0002] To prevent water leakage between the door and the dishwasher door frame, a sealing strip is typically installed between them. This strip is embedded in the door or frame, and when the door is closed, it undergoes irregular elastic deformation to create a seal. However, because dishwashers use a water pump to create a jet of water during the washing process, the water flow inside the cabinet is quite strong to ensure thorough cleaning, resulting in loud operation. Therefore, existing sealing strips often fail to provide a tight seal and have reduced sound insulation, leading to a poor user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a sealing strip and a dishwasher.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A sealing strip, the sealing strip being elastic, the sealing strip comprising:

[0006] The sealing part has a cross-section including a bottom wall, a first side wall, a second side wall and a top wall. The first side wall and the second side wall have a V-shaped structure with the opening of the V-shaped structure facing outward. The two ends of the first side wall and the second side wall are respectively connected to the top wall and the bottom wall to form a sealed first cavity, which is filled with gas.

[0007] The mounting section is used for connecting to external components.

[0008] In this design, the first and second sidewalls of the sealing strip are arranged in a V-shape, with the opening of the V-shape facing outwards. When the top wall is compressed, it indents inwards, while the first and second sidewalls deform towards each other using their elasticity, thus clamping the door frame and achieving a seal. Furthermore, the deformation of the top wall and the first and second sidewalls compresses the gas in the first cavity, increasing the air pressure within the first cavity. This results in a tighter fit between the first, second, and top walls and the door frame, improving the sealing effect. Simultaneously, the inflated first cavity provides excellent cushioning, reducing noise when opening and closing the door, and also offers superior sound insulation.

[0009] Preferably, an extended end of the top wall, an extended end of the bottom wall, and the first side wall form a sealed second cavity, and another extended end of the top wall, another extended end of the bottom wall, and the second side wall form a sealed third cavity. The second cavity and the third cavity are located on opposite sides of the first cavity, and the second cavity is filled with gas, and the third cavity is filled with gas.

[0010] In this design, the second and third cavities are formed on both sides of the first cavity, increasing the sealing surface of the sealing part to accommodate application scenarios with different gaps. When the sealing strip is compressed, the top wall, bottom wall, first side wall, and second side wall all deform, making the top wall fit more tightly against the door frame and improving the sealing effect. At the same time, the first, second, and third cavities are all filled with gas, giving the sealing part a better buffering and sound insulation effect.

[0011] Preferably, the air pressure in the first cavity is less than the air pressure in the second cavity, and the air pressure in the first cavity is less than the air pressure in the third cavity.

[0012] In this design, since the first cavity is directly subjected to compression, to increase the deformation of the top wall and facilitate the sealing strip clamping between the door body and the door frame, the air pressure in the second and third cavities is set to be higher than that in the first cavity. Simultaneously, because the second and third cavities are located on either side of the first cavity, their positions have relatively large gaps, resulting in less direct compression force. Therefore, setting the air pressure in the second and third cavities higher can improve the density effect on both sides of the door frame.

[0013] Preferably, the mounting portion includes a U-shaped groove that extends along the length of the sealing strip and is used to fit over the edge of the external component.

[0014] In this solution, because the sealing strip is elastic, when installing the sealing strip, the sealing strip can be fitted onto the edge of the external component through the U-shaped groove, and the two side walls of the U-shaped groove clamp the external component, making it convenient to install and remove the sealing strip.

[0015] Preferably, the inner wall of the U-shaped groove has a first protrusion that protrudes into the U-shaped groove. The cross-section of the first protrusion is rectangular. The first protrusion is used to be embedded in the rectangular groove of the external component.

[0016] In this design, the first rectangular protrusion can be embedded in the rectangular groove of the external component, improving the connection between the sealing strip and the external component. The first rectangular protrusion embedded in the rectangular groove ensures a tighter fit, preventing impurities from entering the gap between the sealing strip and the external component.

[0017] Preferably, there are two first protrusions, and the two first protrusions are symmetrically arranged on both sides of the U-shaped groove with respect to the center line of the sealing strip.

[0018] In this design, the two symmetrically arranged first protrusions ensure that the mounting part is subjected to uniform force, thereby improving the sealing effect on both sides of the mounting part.

[0019] Preferably, the inner wall of the U-shaped groove has a second protrusion that protrudes into the U-shaped groove. The cross-section of the second protrusion is rectangular. The second protrusion is used to be embedded in the rectangular groove of the external component. The cross-sectional dimension of the second protrusion is smaller than that of the first protrusion. The second protrusion is located outside the first protrusion.

[0020] In this design, both the first and second protrusions connect to the external components, improving the connection between the mounting part and the external components. Making the size of the second protrusion on the outer side smaller improves the sealing effect on the outer side of the mounting part. Simultaneously, the edges of the mounting part can be made thinner, saving material while improving the fit between the mounting part and the external components.

[0021] Preferably, there are two second protrusions, which are symmetrically arranged on both sides of the U-shaped groove with respect to the centerline of the sealing strip.

[0022] In this design, the two symmetrically arranged second protrusions ensure that the mounting part is subjected to uniform force, thereby improving the sealing effect on both sides of the mounting part.

[0023] Preferably, the sealing part has an outwardly convex arc-shaped structure;

[0024] And / or, both sides of the U-shaped groove have arc-shaped corner structures, which are used to cover the arc-shaped chamfer of the external component, and the arc-shaped corner structures are disposed adjacent to the second protrusion.

[0025] In this design, the arc-shaped sealing part provides a better sealing effect and has a smooth surface that prevents residue from sticking.

[0026] The rounded corner structure improves the sealing effect between the edge of the mounting part and the external component, preventing impurities from entering between the sealing strip and the external component. The rounded corner structure is located adjacent to the second protrusion, which can achieve a smooth transition between the two, improve the sealing effect, and also facilitate the injection molding of the sealing strip.

[0027] A dishwasher, the dishwasher including the sealing strip as described above.

[0028] In this design, the sealing strip has an inflatable cavity, which achieves better sealing and sound insulation. The V-shaped structure formed by the first and second sidewalls provides support and helps the sealing strip to seal and return to its original position.

[0029] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0030] The positive and progressive effects of this utility model are as follows: the first and second sidewalls of the sealing strip are arranged in a V-shape, with the opening of the V-shape facing outwards. When the top wall is compressed, it indents inwards, and the first and second sidewalls deform towards each other using their own elasticity, thereby clamping the door frame and achieving the purpose of sealing. Furthermore, when the top wall and the first and second sidewalls deform, they compress the gas in the first cavity, increasing the air pressure in the first cavity, thus making the first, second, and top walls fit more tightly against the door frame and improving the sealing effect. At the same time, the inflated first cavity has a better buffering effect, reducing noise when opening and closing the door, and the inflated first cavity also has a better sound insulation effect. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the sealing strip according to a preferred embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of the structure of the sealing strip installed on the external component according to a preferred embodiment of the present invention. Figure 1 .

[0033] Figure 3 This is a schematic diagram of the structure of the sealing strip installed on the external component according to a preferred embodiment of the present invention. Figure 2 .

[0034] Explanation of reference numerals in the attached figures:

[0035] Sealing part 1

[0036] Bottom wall 11

[0037] First sidewall 12

[0038] Second sidewall 13

[0039] Top Wall 14

[0040] First cavity 101

[0041] Second cavity 102

[0042] Third cavity 103

[0043] Installation Section 2

[0044] U-shaped groove 21

[0045] First protrusion 211

[0046] Second protrusion 212

[0047] Rounded corner structure 213

[0048] External component 3 Detailed Implementation

[0049] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment as an example.

[0050] like Figures 1-3 As shown, this embodiment discloses a sealing strip that is elastic. The sealing strip includes a sealing part 1 and a mounting part 2. The cross-section of the sealing part 1 includes a bottom wall 11, a first side wall 12, a second side wall 13, and a top wall 14. The first side wall 12 and the second side wall 13 have a V-shaped structure with the opening of the V-shaped structure facing outward. The two ends of the first side wall 12 and the second side wall 13 are respectively connected to the top wall 14 and the bottom wall 11 to form a sealed first cavity 101. The first cavity 101 is filled with gas. The mounting part 2 is used to connect with an external component 3.

[0051] like Figures 1-3 As shown, in this embodiment, the first sidewall 12 and the second sidewall 13 of the sealing strip are arranged in a V-shape, with the opening of the V-shape facing outward. When the top wall 14 is compressed, the top wall 14 is concave inward, and the first sidewall 12 and the second sidewall 13 deform towards each other using their own elasticity, thereby clamping the door frame and achieving the purpose of sealing. Furthermore, when the top wall 14 and the first sidewall 12 and the second sidewall 13 deform, they compress the gas in the first cavity 101, increasing the air pressure in the first cavity 101. This makes the first sidewall 12, the second sidewall 13, and the top wall 14 fit more tightly against the door frame, improving the sealing effect. At the same time, the inflated first cavity 101 has a better buffering effect, reducing noise when opening and closing the door. The inflated first cavity 101 also has a better sound insulation effect.

[0052] like Figure 1 As shown, in order to improve the clamping effect, the cross-sectional dimensions of the first sidewall 12 and the second sidewall 13 gradually increase along the direction from the top wall 14 to the bottom wall 11. This facilitates increasing the flexibility of the upper end of the first sidewall 12 and the upper end of the second sidewall 13, increasing the amount of deformation, while ensuring that the lower end of the first sidewall 12 and the lower end of the second sidewall 13 have a certain degree of hardness, so as to ensure a better clamping and sealing effect, and also facilitate the quick reset of the sealing strip.

[0053] The V-shaped structure formed by the first sidewall 12 and the second sidewall 13 can be a standard V-shape, or it can be like... Figure 1 The approximate V-shape shown is obtained by removing the sharp corner at the bottom of the V-shape.

[0054] like Figure 1 As shown, an extended end of the top wall 14, an extended end of the bottom wall 11, and the first side wall 12 form a sealed second cavity 102. The other extended end of the top wall 14, the other extended end of the bottom wall 11, and the second side wall 13 form a sealed third cavity 103. The second cavity 102 and the third cavity 103 are located on opposite sides of the first cavity 101. The second cavity 102 is filled with gas, and the third cavity 103 is also filled with gas. The second cavity 102 and the third cavity 103, formed on opposite sides of the first cavity 101, increase the sealing surface of the sealing part 1 to adapt to different gap application scenarios. When the sealing strip is compressed, the top wall 14, bottom wall 11, first side wall 12, and second side wall 13 all deform, making the top wall 14 fit more tightly against the door frame and improving the sealing effect. Simultaneously, the first cavity 101, the second cavity 102, and the third cavity 103 are all filled with gas, giving the sealing part 1 a better buffering and sound insulation effect.

[0055] The air pressure in the first cavity 101 is lower than that in the second cavity 102, and the air pressure in the third cavity 103 is lower than that in the second cavity 103. Since the first cavity 101 is directly compressed, in order to increase the deformation of the top wall 14 and facilitate the sealing strip clamping between the door body and the door frame, the air pressure in the second cavity 102 and the third cavity 103 is set to be higher than that in the first cavity 101. At the same time, since the second cavity 102 and the third cavity 103 are located on both sides of the first cavity 101, the gap between them is relatively large, and the direct compression force is small. Therefore, setting the air pressure in the second cavity 102 and the third cavity 103 to be higher can improve the density effect on both sides of the door frame.

[0056] In this embodiment, the air pressure of the second cavity 102 and the air pressure of the third cavity 103 are not limited here; they can be the same or different.

[0057] like Figure 1 As shown, the mounting part 2 includes a U-shaped groove 21, which extends along the length of the sealing strip and is used to fit over the edge of the outer component 3. Because the sealing strip is elastic, it can fit over the edge of the outer component 3 through the U-shaped groove 21 during installation. The two side walls of the U-shaped groove 21 clamp the outer component 3, facilitating the installation and removal of the sealing strip.

[0058] like Figure 1As shown, the inner wall of the U-shaped groove 21 has a first protrusion 211 protruding into the U-shaped groove 21. The cross-section of the first protrusion 211 is rectangular, and the first protrusion 211 is used to embed into the rectangular groove of the external component 3. The rectangular first protrusion 211 can be embedded in the rectangular groove of the external component 3, improving the connection effect between the sealing strip and the external component 3. The rectangular first protrusion 211 embedded in the rectangular groove makes the two fit more tightly, which can prevent impurities from entering the gap between the sealing strip and the external component 3.

[0059] like Figure 1 As shown, there are two first protrusions 211, which are symmetrically arranged on both sides of the U-shaped groove 21 with respect to the center line of the sealing strip. The two symmetrically arranged first protrusions 211 ensure that the mounting part 2 is subjected to uniform force, thereby improving the sealing effect on both sides of the mounting part 2.

[0060] like Figure 1 As shown, the inner wall of the U-shaped groove 21 has a second protrusion 212 protruding into the U-shaped groove 21. The cross-section of the second protrusion 212 is rectangular. The second protrusion 212 is used to embed into the rectangular groove of the external component 3. The cross-sectional dimension of the second protrusion 212 is smaller than that of the first protrusion 211, and the second protrusion 212 is located outside the first protrusion 211. The first protrusion 211 and the second protrusion 212 are connected to the external component 3 at the same time, improving the connection effect between the mounting part 2 and the external component 3. By making the size of the outer second protrusion 212 smaller, the sealing effect on the outside of the mounting part 2 is improved. At the same time, the edge of the mounting part 2 can be made thinner, which saves material and improves the fit between the mounting part 2 and the external component 3.

[0061] like Figure 1 As shown, there are two second protrusions 212, which are symmetrically arranged on both sides of the U-shaped groove 21 with respect to the center line of the sealing strip. The two symmetrically arranged second protrusions 212 ensure that the mounting part 2 is subjected to uniform force, thereby improving the sealing effect on both sides of the mounting part 2.

[0062] like Figures 1-3 As shown, the sealing part 1 has an outwardly convex arc-shaped structure. The arc-shaped structure of the sealing part 1 improves the sealing effect and the smooth surface prevents residue from adhering.

[0063] like Figure 1As shown, both sides of the U-shaped groove 21 have arc-shaped corner structures 213. These arc-shaped corner structures 213 cover the arc-shaped chamfer of the outer component 3 and are positioned adjacent to the second protrusion 212. The arc-shaped corner structures 213 improve the sealing effect between the edge of the mounting part 2 and the outer component 3, preventing impurities from entering between the sealing strip and the outer component 3. The arc-shaped corner structures 213, positioned adjacent to the second protrusion 212, allow for a smooth transition between the two, improving the sealing effect and facilitating the injection molding of the sealing strip. The second protrusion 212 fixes the edge of the mounting part 2 to the outer component 3, improving the sealing effect of the edge of the mounting part 2.

[0064] In other alternative embodiments, the number of first protrusions and second protrusions can be multiple, and the multiple first protrusions and second protrusions can be spaced apart along the thickness direction of the outer component to improve the connection effect between the sealing strip and the outer component.

[0065] like Figure 2 and Figure 3 As shown, in this embodiment, the sealing strip is installed on the edge of the door. Of course, in other alternative embodiments, the external component can also be installed on the edge of the door frame, as well as on the edges of other components where the sealing strip needs to be installed.

[0066] This embodiment also discloses a dishwasher, which includes a sealing strip as described above. The sealing strip has an inflatable first cavity 101, thereby achieving better sealing and sound insulation effects. The V-shaped structure formed by the first sidewall 12 and the second sidewall 13 provides support and helps the sealing strip to seal and return to its original position.

[0067] In the description herein, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0068] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A weather strip having elasticity, characterized by The sealing strip includes: The sealing part has a cross-section including a bottom wall, a first side wall, a second side wall, and a top wall. The first side wall and the second side wall have a V-shaped structure with the opening of the V-shaped structure facing outward. The two ends of the first side wall and the second side wall are respectively connected to the top wall and the bottom wall to form a sealed first cavity, which is filled with gas. The mounting section is used for connecting to external components.

2. The weather strip of claim 1, wherein An extended end of the top wall, an extended end of the bottom wall, and the first side wall form a sealed second cavity. Another extended end of the top wall, another extended end of the bottom wall, and the second side wall form a sealed third cavity. The second cavity and the third cavity are located on opposite sides of the first cavity. The second cavity is filled with gas, and the third cavity is filled with gas.

3. The weather strip of claim 2, wherein The air pressure in the first cavity is less than the air pressure in the second cavity, and the air pressure in the first cavity is less than the air pressure in the third cavity.

4. The weather strip of claim 1 wherein, The mounting part includes a U-shaped groove that extends along the length of the sealing strip and is used to fit onto the edge of the external component.

5. The weather strip of claim 4, wherein The inner wall of the U-shaped groove has a first protrusion that protrudes into the U-shaped groove. The cross-section of the first protrusion is rectangular. The first protrusion is used to be embedded in the rectangular groove of the external component.

6. The weather strip of claim 5, wherein There are two first protrusions, which are symmetrically arranged on both sides of the U-shaped groove with respect to the center line of the sealing strip.

7. The weather strip of claim 5 wherein, The inner wall of the U-shaped groove has a second protrusion that protrudes into the U-shaped groove. The cross-section of the second protrusion is rectangular. The second protrusion is used to be embedded in the rectangular groove of the external component. The cross-sectional dimension of the second protrusion is smaller than that of the first protrusion. The second protrusion is located outside the first protrusion.

8. The weather strip of claim 7, wherein There are two second protrusions, which are symmetrically arranged on both sides of the U-shaped groove with respect to the center line of the sealing strip.

9. The weather strip of claim 7 wherein, The sealing part has an outwardly convex arc-shaped structure; And / or, both sides of the U-shaped groove have arc-shaped corner structures, which are used to cover the arc-shaped chamfer of the external component, and the arc-shaped corner structures are disposed adjacent to the second protrusion.

10. A dishwasher, characterized in that The dishwasher includes a sealing strip as described in any one of claims 1-9.

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