Dishwasher and filter screen therefor

Abstract

This utility model relates to the field of dishwasher technology, specifically providing a dishwasher and its filter plate, aiming to solve the problem of difficult assembly between the lower end of the existing water pipe and the filter plate. To this end, this utility model provides a dishwasher filter plate, which includes a fixing part with a recessed mounting hole. A snap-fit ​​is formed on the side wall of the mounting hole for engaging with the end of the dishwasher's water pipe. The side wall portion of the mounting hole above the snap-fit ​​is configured as a flexible structure. The dishwasher filter plate provided by this utility model, by making the side wall portion of the mounting hole above the snap-fit ​​as a flexible structure, allows the flexible structure above the snap-fit ​​to deform when the end of the water pipe passes through the mounting hole, thus allowing the snap-fit ​​structure at the end of the water pipe to pass smoothly. The flexible structure reduces the difficulty of assembling the water pipe and the filter plate, improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, specifically providing a dishwasher and its filter plate. Background Technology

[0002] With the fast pace of life, dishwashers with efficient cleaning capabilities have become an essential home appliance in modern households. Most large-capacity dishwashers currently available employ a design with at least two spray arms: the lower spray arm primarily cleans the dishes at the bottom of the dishwasher tub, while the upper spray arm cleans the dishes at the top. To achieve a circulating water supply for the spray system, a water pipe connects the bottom water tank to the spray arms. The lower end of the water pipe must pass through the mounting holes in the water tank's filter screen and be secured.

[0003] In existing technologies, an interference fit assembly method is typically used to ensure the stability of the connection between the water inlet pipe and the filter screen. However, this assembly method has significant technical drawbacks: as the interference fit increases, it not only causes irreversible plastic deformation of the filter screen mounting holes, but also causes deformation of the overall structure of the filter screen during assembly, while significantly increasing the difficulty and defect rate of the assembly operation. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem of the difficulty in assembling the lower end of the existing water pipe with the filter screen.

[0005] In a first aspect, the present invention provides a filter plate for a dishwasher, the filter plate including a fixing part having a recessed mounting hole, the mounting hole having a snap-fit ​​opening on its side wall for engaging with the end of the water inlet pipe of the dishwasher, and the side wall portion of the mounting hole above the snap-fit ​​being configured as a flexible structure.

[0006] In some feasible embodiments of the dishwasher filter plate described above, the flexible structure is a hollow structure.

[0007] This invention features a perforated structure on the side wall above the mounting hole, allowing the side wall to have a certain degree of elastic deformation. This design facilitates smoother installation of the water pipe and effectively reduces the risk of plastic deformation of the side wall.

[0008] In some feasible embodiments of the dishwasher filter plate described above, the mounting hole is a stepped hole, and includes at least a first hole segment and a second hole segment along the axis from bottom to top. The diameter of the first hole segment is smaller than the diameter of the second hole segment. The snap is formed on the side wall of the first hole segment, and the side wall portion above the snap is provided with at least two strip-shaped perforated holes.

[0009] In some feasible embodiments of the dishwasher filter plate described above, the first hole segment and the second hole segment are connected by a horizontal segment, and the strip-shaped perforated hole extends from the sidewall of the first hole segment to at least the horizontal segment.

[0010] The above settings enable the first hole segment and the horizontal segment above the bayonet to have a certain elastic deformation capability, that is, to form a flexible structure on the clamping path of the water pipe, thereby facilitating the installation of the water pipe.

[0011] In some feasible embodiments of the dishwasher filter plate described above, the strip-shaped perforation extends to the top of the second perforation segment.

[0012] The above design makes most of the sidewall of the mounting hole flexible, further improving the elastic deformation capacity of the mounting hole, allowing the end of the water pipe to be inserted and fixed more smoothly, and also improving the stability after the connection.

[0013] In some feasible embodiments of the dishwasher filter plate described above, the first perforated section is connected to the horizontal section by a guide section, the guide section is inclined toward the first perforated section, and the strip-shaped perforation extends at least beyond the guide section and into the horizontal section.

[0014] This invention incorporates a guide section, creating a guiding transition structure between the first hole section and the horizontal section. During assembly, the inclined surface structure formed by the guide section effectively guides the end of the water pipe into the mounting hole, significantly reducing assembly resistance.

[0015] In some feasible embodiments of the dishwasher filter plate described above, the strip-shaped perforation includes a first perforation and a second perforation, the first perforation and the second perforation are located directly above the bayonet, and the outer edges of the first perforation and the second perforation are aligned with the two side edges of the bayonet, respectively.

[0016] In some feasible embodiments of the dishwasher filter plate described above, a reinforcing rib is also provided on the outer side of the side wall portion located between the first perforation and the second perforation.

[0017] In some feasible embodiments of the dishwasher filter plate described above, the flexible structure is a thin-walled structure; or

[0018] The material corresponding to the flexible structure is a flexible material.

[0019] It should be noted that the thin-walled structure allows the sidewall portion to possess a certain degree of elastic deformation capability. This structural design effectively reduces the risk of plastic deformation of the sidewall portion during assembly or use, improving product reliability and service life. Specifically, a thin-walled structure can be formed through a thinning process.

[0020] In addition, the flexible material can be silicone, silicone rubber, etc., and can be connected to other parts of the sidewall of the mounting hole to form an integrated structure through bonding or other methods.

[0021] The dishwasher filter plate provided by this utility model features a flexible structure on the side wall above the mounting hole, allowing the flexible structure above the bayonet to deform when the end of the water pipe passes through the mounting hole, thus enabling the snap-fit ​​structure at the end of the water pipe to pass smoothly. This structural design effectively avoids irreversible plastic deformation of the mounting hole due to excessive interference fit of the snap-fit ​​structure, significantly reducing the probability of product damage and preventing water circulation from being affected by component deformation. Simultaneously, the flexible structure reduces the difficulty of assembling the water pipe and the filter plate, improving assembly efficiency. The structural design of this utility model ensures both product reliability and improved assembly efficiency.

[0022] In a second aspect, the present invention provides a dishwasher, the dishwasher including the filter plate of the dishwasher described in any of the above technical solutions.

[0023] Since the dishwasher described above is equipped with the aforementioned dishwasher filter plate, it possesses all the technical effects that the aforementioned dishwasher filter plate can achieve, which will not be repeated here. Attached Figure Description

[0024] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0025] Figure 1 This is one of the assembly diagrams of the filter screen and the water pipe in this utility model, wherein the up and down directions are indicated in the diagram;

[0026] Figure 2 This is an exploded view of the filter screen and water inlet pipe in this utility model; however, some structures of the water inlet pipe are omitted, and the up and down directions are indicated in the figure.

[0027] Figure 3 This is the second assembly diagram of the filter screen and water inlet pipe in this utility model; in this diagram, part of the structure of the water inlet pipe is omitted, and the up and down directions are indicated.

[0028] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle;

[0029] Figure 5 This is a top view of the filter screen of this utility model;

[0030] Figure 6 yes Figure 5 A cross-sectional view along the BB direction, where the up and down directions are indicated.

[0031] Figure 7 yes Figure 6 A magnified view of a portion of point C.

[0032] List of reference numerals in the attached diagram:

[0033] 1-Filter screen; 11-Fixing part; 111-Mounting hole; 1111-First hole section; 1112-Second hole section; 1113-Guide section; 1114-Horizontal section; 1115-First hollow hole; 1116-Second hollow hole; 112-Barrel clip; 113-Flexible structure; 114-Reinforcing rib; 2-Water inlet pipe; 21-Snap-on structure. Detailed Implementation

[0034] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that in the description of this utility model, terms such as "upper", "lower", "inner", and "outer" that indicate direction or positional relationship are based on the direction or positional relationship shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0036] Furthermore, it should be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal connection of two components, and so on. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. In addition, numerical terms such as "first," "second," etc., used herein are primarily (only) used to distinguish multiple similar objects, quantities, or processes; that is, they do not necessarily indicate any dependency and / or order between these objects, quantities, or processes. If a dependency and / or order is required, it will be explicitly stated in the context, or it will be obvious to those skilled in the art when understanding the specific embodiments.

[0037] like Figure 1 and Figure 2 As shown, this embodiment of the present invention provides a dishwasher, which includes an inner tub (not shown), a water tank (not shown), a filter plate 1, and a water inlet pipe 2. The filter plate 1 is disposed at the bottom of the inner tub and above the water tank. The filter plate 1 intercepts residue from the rinsed dishes, preventing large pieces of residue from entering the drain pipe and causing blockage. The filter plate 1 has a plurality of filter holes (not shown) arranged on it, which connect the inner tub above the filter plate 1 and the water tank below. The filter plate 1 includes a fixing part 11, on which a recessed mounting hole 111 is constructed. The mounting hole 111 extends into the water tank. The lower end of the water inlet pipe 2 is fixedly disposed on the filter plate 1 through the mounting hole 111, and the other end is connected to each spray arm in the inner tub to deliver water from the water tank to each spray arm, thereby cleaning the dishes in the inner tub. Driven by the dishwasher's water pump, water in the sink is transported from bottom to top through the water pipe 2 to each spray arm in the inner tub, causing each spray arm to spray high-pressure water to rinse the dishes in the inner tub; the rinsed water will pass through the filter plate 1 and flow back into the sink, completing one cycle.

[0038] It should be noted that the number of mounting holes 111 is not limited to the two shown in the figure. It can be one, three, four, five, etc. The specific number can be designed and adjusted based on the structure of the water pipe 2 and the number of spray arms.

[0039] like Figure 3 and Figure 4 As shown, a bayonet 112 is provided on the side wall of the mounting hole 111. The bayonet 112 is used to engage with the lower end of the water pipe 2. In this utility model, the side wall portion of the mounting hole 111 located above the bayonet 112 is set as a flexible structure 113.

[0040] Specifically, in this embodiment, the flexible structure 113 is a hollow structure. For example... Figures 5 to 7 As shown, the mounting hole 111 is a stepped hole, and along the axis from bottom to top includes at least a first hole segment 1111 and a second hole segment 1112. The diameter of the first hole segment 1111 is smaller than the diameter of the second hole segment 1112. The first hole segment 1111 and the second hole segment 1112 are connected by a horizontal segment 1114. A bayonet 112 is formed on the side wall of the first hole segment 1111. The side wall portion above the bayonet 112 is provided with at least two strip-shaped perforated holes, so that the two strip-shaped perforated holes and the portion between them constitute a flexible structure 113. This structural design makes the installation process of the water pipe 2 smoother and can effectively reduce the risk of plastic deformation of the side wall portion.

[0041] Specifically, in this embodiment, the strip-shaped perforation includes a first perforation 1115 and a second perforation 1116. The first perforation 1115 and the second perforation 1116 are located directly above the bayonet 112, and the outer edges of the first perforation 1115 and the second perforation 1116 are aligned with the two side edges of the bayonet 112, respectively.

[0042] Furthermore, such as Figure 3 and Figure 4 As shown, a reinforcing rib 114 is also provided on the outer side of the sidewall portion located between the first hollow hole 1115 and the second hollow hole 1116. By providing the reinforcing rib 114, the sidewall portion between the first hollow hole 1115 and the second hollow hole 1116 can effectively improve the strength of this part of the structure while possessing flexible deformation capability.

[0043] Further reference Figures 5 to 7 The first hole segment 1111 and the horizontal segment 1114 are connected by a guide segment 1113. The guide segment 1113 is inclined toward the first hole segment 1111. The first hollow hole 1115 and the second hollow hole 1116 extend beyond the guide segment 1113 and reach the horizontal segment 1114. In this embodiment, the first hollow hole 1115 and the second hollow hole 1116 extend to the top of the second hole segment 1112. By setting the guide segment 1113, a guiding transition structure is provided between the first hole segment 1111 and the horizontal segment 1114. During assembly, the inclined surface structure formed by the guide segment 1113 can effectively guide the lower end of the water pipe 2 into the mounting hole 111, significantly reducing assembly resistance.

[0044] Furthermore, by extending the first hollow hole 1115 and the second hollow hole 1116 to the top of the second hole segment 1112, the portion of the second hole segment 1112 above the bayonet 112 can also have a certain elastic deformation capability, increasing the overall deformation capability of the upper side wall portion of the bayonet 112, thereby making it easier for the buckle structure 21 of the water pipe 2 to be inserted into the bayonet 112.

[0045] It should be noted that the number of strip-shaped perforations is not limited to the two shown in the figure; it can also be three, four, etc.

[0046] Alternatively, in some specific embodiments, the flexible structure 113 is a thin-walled structure. The thin-walled structure can be formed by removing material, such as thinning the sidewall of the mounting hole 111. This thinning can be achieved directly by modifying the mold, or it can be performed separately after the filter screen 1 is formed. By setting the sidewall portion of the mounting hole 111 above the bayonet 112 as a thin-walled structure, this sidewall portion can possess a certain degree of elastic deformation capability.

[0047] Alternatively, in some specific embodiments, the flexible structure 113 is made of a flexible material. For example, the above effect can be achieved by splicing and combining materials. Specifically, the material of the corresponding sidewall portion can be replaced with a flexible material, such as silicone or silicone rubber, and then connected to the filter screen 1 as an integral structure by means of bonding. By replacing the material of the sidewall portion of the mounting hole 111 located above the bayonet 112 with a flexible material, the sidewall portion can have a certain elastic deformation capability, thereby avoiding the buckle structure 21 during the installation of the water pipe 2, allowing the buckle structure 21 to be smoothly inserted into the bayonet 112.

[0048] The specific installation process of the water inlet pipe 2 on the filter screen plate 1 is as follows: First, align the lower end of the water inlet pipe 2 with the mounting hole 111 on the filter screen plate 1, while ensuring that the snap-fit ​​structure 21 corresponds to the bayonet 112. Then, insert the lower end of the water inlet pipe 2 into the mounting hole 111 from top to bottom. Under the action of the elastic deformation capability of the flexible structure 113, the snap-fit ​​structure 21 can smoothly pass through the side wall portion above the bayonet 112 and finally engage with the bayonet 112.

[0049] The dishwasher filter plate 1 provided by this utility model features a flexible structure 113 on the side wall portion of the mounting hole 111 above the bayonet 112. This allows the flexible structure 113 above the bayonet 112 to deform when the lower end of the water pipe 2 passes through the mounting hole 111, thus allowing the snap-fit ​​structure 21 at the lower end of the water pipe 2 to pass smoothly. This structural design effectively avoids irreversible plastic deformation of the mounting hole 111 due to excessive interference fit of the snap-fit ​​structure 21, significantly reducing the probability of product damage and preventing water circulation from being affected by component deformation. Simultaneously, the flexible structure 113 reduces the difficulty of assembling the water pipe 2 and the filter plate 1, improving assembly efficiency. The structural design of this utility model ensures both product reliability and improved assembly efficiency.

[0050] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A filter screen for a dishwasher, characterized in that, The filter plate (1) includes a fixing part (11), on which a recessed mounting hole (111) is constructed. A snap-fit ​​(112) is opened on the side wall of the mounting hole (111), and the snap-fit ​​(112) is used to engage with the end of the water pipe (2) of the dishwasher. The side wall portion of the mounting hole (111) located above the snap-fit ​​(112) is configured as a flexible structure (113).

2. The filter plate of the dishwasher according to claim 1, characterized in that, The flexible structure (113) is a hollow structure.

3. The filter plate of the dishwasher according to claim 2, characterized in that, The mounting hole (111) is a stepped hole, and includes at least a first hole segment (1111) and a second hole segment (1112) along the axis from bottom to top. The diameter of the first hole segment (1111) is smaller than the diameter of the second hole segment (1112). The bayonet (112) is formed on the side wall of the first hole segment (1111), and the side wall portion above the bayonet (112) is provided with at least two strip-shaped perforated holes.

4. The filter plate of the dishwasher according to claim 3, characterized in that, The first hole segment (1111) and the second hole segment (1112) are connected by a horizontal segment (1114), and the strip-shaped perforated hole extends from the side wall of the first hole segment (1111) to at least the horizontal segment (1114).

5. The filter plate of the dishwasher according to claim 4, characterized in that, The strip-shaped perforation extends to the top of the second hole segment (1112).

6. The filter plate of the dishwasher according to claim 4, characterized in that, The first hole segment (1111) and the horizontal segment (1114) are connected by a guide segment (1113). The guide segment (1113) is inclined toward the first hole segment (1111), and the strip-shaped perforated hole extends at least beyond the guide segment (1113) and extends to the horizontal segment (1114).

7. The filter plate of the dishwasher according to claim 3, characterized in that, The strip-shaped perforation includes a first perforation (1115) and a second perforation (1116). The first perforation (1115) and the second perforation (1116) are located directly above the bayonet (112), and the outer edges of the first perforation (1115) and the second perforation (1116) are aligned with the two side edges of the bayonet (112).

8. The filter plate of the dishwasher according to claim 7, characterized in that, A reinforcing rib (114) is also provided on the outer side of the side wall portion located between the first hollow hole (1115) and the second hollow hole (1116).

9. The filter plate of the dishwasher according to claim 1, characterized in that, The flexible structure (113) is a thin-walled structure; or The flexible structure (113) is made of a flexible material.

10. A dishwasher, characterized in that, The dishwasher includes the filter plate of any one of claims 1 to 9.

Images