Waterway connection device and dishwasher

Abstract

The application relates to a waterway connecting device and a dishwasher, the waterway connecting device comprising an inner water pipe, a one-way valve gasket and a connecting water pipe; the inner water pipe is provided with a water outlet; the one-way valve gasket is connected to the inner water pipe, and the one-way valve gasket comprises a covering tongue plate located at the water outlet; the covering tongue plate is made of a deformable material; the covering tongue plate has an initial state and a deformed state; the covering tongue plate is deformed from the initial state to the direction of the inner water pipe to switch to the deformed state; when the covering tongue plate is in the initial state, the covering tongue plate covers and blocks the water outlet; when the covering tongue plate is in the deformed state, the water outlet is at least partially open; the connecting water pipe is detachably inserted into the water outlet, and the connecting water pipe drives the covering tongue plate to deform to switch to the deformed state during the process of being inserted into the water outlet. In the above scheme, the device is suitable for being used in dismounting a spray arm, and can realize the cleaning of super-large tableware such as large baking trays, thereby meeting the diversified needs of users.

Description

Technical Field

[0001] This application relates to the field of kitchenware technology, and in particular to water connection devices and dishwashers. Background Technology

[0002] Dishwashers clean dishes placed in the dish racks by spraying high-pressure water through rotating spray arms. Typically, the dish racks are divided into upper and lower sections, with some models adding a tray on top for smaller cutlery such as knives, forks, and chopsticks. During operation, water is drawn in by a pump at the bottom, accelerated and pressurized, and then delivered to the spray arms of each dish rack via internal water pipes.

[0003] Since both the bowl basket and the tray are detachable movable parts, and in order to accommodate the placement needs of tableware of different sizes, the upper bowl basket can be set to a height-adjustable structure. The connection between the spray arm located in the upper bowl basket and the inner water pipe needs to be achieved through a connecting device or water distribution structure, and the water distribution structure usually has multiple height positions for the spray arm to select.

[0004] In the existing technology, the water distribution structure designed for adjustable height upper bowl baskets requires that the upper bowl basket must be connected to at least one of the multiple height positions of the water distribution structure; otherwise, the water will spray directly out from the water distribution structure. This design means that although the height of the spray arm is adjustable, the spray arm cannot be disassembled for use, which limits the cleaning of extra-large tableware such as large baking pans and cannot meet the diverse needs of users. Utility Model Content

[0005] Therefore, it is necessary to provide a water circuit connection device and a dishwasher to address the problem that the existing dishwasher's water distribution structure cannot meet the cleaning needs of extra-large tableware when the spray arm is disassembled.

[0006] A water circuit connection device includes an inner water pipe, a one-way valve gasket, and a connecting water pipe. The inner water pipe has an outlet. The one-way valve gasket is connected to the inner water pipe and includes a cover tongue located at the outlet. The cover tongue is made of a deformable material and has an initial state and a deformed state. The cover tongue deforms from the initial state toward the interior of the inner water pipe to switch to the deformed state. When the cover tongue is in the initial state, it covers and blocks the outlet. When the cover tongue is in the deformed state, the outlet is at least partially open. The connecting water pipe is detachably inserted into the outlet, and during the insertion of the connecting water pipe into the outlet, it causes the cover tongue to deform to switch to the deformed state.

[0007] In one embodiment, the inner water pipe has a plurality of water outlets, and each water outlet corresponds to a one-way valve gasket.

[0008] In one embodiment, the one-way valve gasket further includes a main body piece having an opening at the outlet. When the cover tongue is in its initial state, it covers at least part of the opening. A portion of the edge of the cover tongue is fixedly connected to the main body piece, and the edges of other portions of the cover tongue are separated from the main body piece.

[0009] In one embodiment, the water connection device further includes a pressure plate detachably connected to the inner water pipe, the pressure plate having a through hole for the outlet, and the one-way valve gasket sandwiched between the inner water pipe and the pressure plate.

[0010] In one embodiment, the pressure plate includes a main board and a limiting portion located on the cover tongue. The limiting portion protrudes from the end face of the main board away from the inner water pipe, and the through hole is located at the end of the limiting portion away from the inner water pipe. The limiting portion is partially located on the path of the cover tongue deforming toward the side away from the inner water pipe.

[0011] In one embodiment, the limiting part includes a connecting pipe and a stop block. The connecting pipe is connected to the main board, and the stop block is located at the end of the connecting pipe away from the main board. The stop block extends from the connecting pipe toward the through hole, and the stop block includes an abutment surface perpendicular to the axis of the through hole and facing the inner water pipe. The abutment surface at least covers the edge of the cover tongue that is separated from the main body piece when the cover tongue is in the initial position and the gap between the main body piece and the main body piece.

[0012] In one embodiment, the projection of the through hole is located inside the projection of the covering tongue along the axis of the through hole.

[0013] In one embodiment, the stop block includes a stop segment disposed along the axial direction of the through hole, and the stop segment is used to construct the through hole, wherein the end face of the stop segment facing the inner water pipe is the abutment surface.

[0014] In one embodiment, the stop block further includes a connecting section, the two ends of which are respectively connected to the outer periphery of the limiting portion and the stop section. The connecting section includes a guide surface that is inclined in a direction close to the inner water pipe from the outer periphery of the limiting portion toward the through hole.

[0015] In one embodiment, the water connection device further includes a spray arm connected to the end of the connecting water pipe away from the outlet.

[0016] A dishwasher includes a water connection device as described in any of the above embodiments.

[0017] The water connection device provided in the above solution uses a cover tongue that is aligned with and covers the water outlet. The water pressure inside the inner pipe keeps the cover tongue in its initial state of sealing the outlet when no other external force is applied. When the connecting water pipe is inserted into the outlet, the connecting water pipe causes the cover tongue to deform, thus opening the outlet and allowing water in the inner pipe to flow through the outlet to the connecting water pipe. This achieves the goal of keeping the cover tongue sealing the outlet when no connecting water pipe is inserted, while... When the water pipe is inserted into the water outlet, the outlet is normally open. The water pressure inside the inner water pipe seals the outlet with the covering tongue. There is no risk of leakage due to the water pressure inside the inner water pipe. Each outlet is controlled independently, and its sealing effect is not affected by the status of other outlets or the water pressure inside the inner water pipe. It can keep all outlets sealed even when no connecting water pipe is inserted. It is suitable for use with the spray arm disassembled, enabling the cleaning of extra-large tableware such as large baking pans, thus meeting the diverse needs of users. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a waterway connection device in one embodiment of this application.

[0019] Figure 2 for Figure 1 Cross-sectional schematic diagram of the water supply connection device.

[0020] Figure 3 for Figure 2 A schematic diagram of the structure of the one-way valve gasket.

[0021] Figure 4 for Figure 3 A cross-sectional schematic diagram of the gasket of the one-way valve.

[0022] Figure 5 for Figure 2 Schematic diagram of the intermediate pressure plate.

[0023] Figure 6 for Figure 5 Cross-sectional view of the intermediate pressure plate.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100. Water circuit connection device; 110. Inner water pipe; 111. Water outlet; 120. One-way valve gasket; 121. Cover tongue; 122. Main body piece; 1221. Opening; 130. Connecting water pipe; 140. Spray arm; 150. Pressure plate; 151. Main board; 152. Limiting part; 1521. Stop block; 15211. Connecting section; 15212. Stop section; 1522. Connecting pipe; 1523. Abutment surface; 1524. Guide surface; 153. Through hole; 154. Buckle. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0028] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0032] One embodiment of this application provides a dishwasher for washing tableware. The dishwasher includes a water connection device 100 as described in any of the embodiments below, and also includes a dish basket for holding tableware, the dish basket being typically located above or below the spray arm 140 described below, so that the water sprayed by the spray arm 140 can rinse and wash the tableware in the dish basket.

[0033] See Figure 1 , Figure 1 A schematic diagram of the structure of a water connection device 100 according to an embodiment of this application is shown. This embodiment of the application provides a water connection device 100, which can be applied to the above-mentioned dishwasher or to other fields without limitation.

[0034] Combination Figure 2 As shown, Figure 2A cross-sectional schematic diagram of a water connection device 100 according to an embodiment of this application is shown. The water connection device 100 includes an inner water pipe 110, a one-way valve gasket 120, and a connecting water pipe 130. The inner water pipe 110 has an outlet 111, through which water flows out. Figure 2 As shown, the one-way valve gasket 120 is connected to the inner water pipe 110, and the one-way valve gasket 120 includes a cover tongue 121 located at the water outlet 111. The cover tongue 121 is made of a deformable material. For example, the cover tongue 121 can be made of deformable metal material, resin material, etc., without limitation.

[0035] like Figure 2 As shown, the covering tongue 121 has an initial state and a deformed state. The covering tongue 121 deforms from the initial state toward the interior of the inner water pipe 110 to switch to the deformed state. Since the water flow direction inside the inner water pipe 110 is from the inside of the inner water pipe 110 toward the outside of the outlet 111, the water pressure inside the inner water pipe 110 exerts a force on the covering tongue 121, causing it to deform toward the initial state and keeping it in the initial state. This allows the covering tongue 121 to remain in the initial state when no other external force is applied. When the covering tongue 121 is in the initial state, it covers and blocks the outlet 111, preventing water in the inner water pipe 110 from flowing out through the outlet 111. When the covering tongue 121 is in the deformed state, the outlet 111 is at least partially open, allowing water in the inner water pipe 110 to flow out through the outlet 111.

[0036] like Figure 2 As shown, the connecting water pipe 130 is detachably inserted into the water outlet 111, and during the process of inserting the connecting water pipe 130 into the water outlet 111, it causes the covering tongue 121 to deform to switch to the deformed state. At this time, the water outlet 111 is at least partially open so that the water in the inner water pipe 110 flows through the water outlet 111 into the connecting water pipe 130.

[0037] The water connection device 100 provided in the above solution, by setting a covering tongue 121 that is aligned with and covers the water outlet 111, utilizes the water pressure inside the inner water pipe 110 to keep the covering tongue 121 in its initial state of blocking the water outlet 111 when no other external force is applied. When the connecting water pipe 130 is inserted into the water outlet 111, the connecting water pipe 130 causes the covering tongue 121 to deform to a deformed state, thereby opening the water outlet 111 and allowing water in the inner water pipe 110 to flow through the water outlet 111 to the connecting water pipe 130. This achieves the goal of keeping the covering tongue 121 aligned with the water outlet 111 when the connecting water pipe 130 is not inserted into the water outlet 111. The outlet 111 is blocked by the connecting water pipe 130. When the connecting water pipe 130 is inserted into the outlet 111, the outlet 111 is normally open. The water pressure inside the inner water pipe 110 achieves the sealing of the outlet 111 by the covering tongue 121. There is no risk of leakage due to the water pressure inside the inner water pipe 110. Each outlet 111 is controlled independently. Its sealing effect is not affected by the status of other outlets 111 or the water pressure inside the inner water pipe 110. It can keep each outlet 111 blocked when the connecting water pipe is not inserted. It is suitable for use with the spray arm 140 disassembled, so as to clean extra-large tableware such as large baking pans, thereby meeting the diverse needs of users.

[0038] like Figure 1 As shown, in one embodiment, the water connection device 100 further includes a spray arm 140, which is connected to the end of the connecting water pipe 130 away from the outlet 111. Water in the inner water pipe 110 flows through the outlet 111 into the connecting water pipe 130, and then into the spray arm 140. The spray arm 140 has multiple spray nozzles to spray the water flowing into the spray arm 140 towards the tableware in the dish rack.

[0039] like Figure 1 As shown, in one embodiment, the inner water pipe 110 has multiple water outlets 111, and as... Figure 2 As shown, each outlet 111 corresponds to a one-way valve gasket 120, so that each outlet 111 can be independently controlled to open and close.

[0040] Combination Figure 3 and Figure 4 As shown, in one embodiment, the one-way valve gasket 120 further includes a main body 122. The main body 122 has an opening 1221 for the outlet 111. A portion of the edge of the cover tongue 121 is fixedly connected to the main body 122, and the edges of other portions of the cover tongue 121 are separated from the main body 122. When the cover tongue 121 is in its initial state, it covers at least part of the opening 1221. Figure 3 and Figure 4As shown, in this embodiment, when the covering tongue 121 is in its initial state, it covers most of the opening 1221, leaving only the edge of the covering tongue 121 separated from the main body 122 and the gap between the main body 122. In other embodiments, the covering tongue 121 in its initial state may completely cover the opening 1221, in which case the area of ​​the covering tongue 121 may be greater than or equal to the area of ​​the opening 1221.

[0041] In this embodiment, such as Figure 2 As shown, the portion of the inner water pipe 110 with the outlet 111 protrudes from the circumference of the inner water pipe 110. For ease of description, since the portion protruding from the circumference of the inner water pipe 110 is used to construct the outlet 111, this portion is referred to as the side wall of the outlet 111. Furthermore, the one-way valve gasket 120 has a corresponding protruding portion that is fitted onto the side wall of the outlet 111. Both of these portions serve to position the connection between the one-way valve gasket 120 and the inner water pipe 110.

[0042] like Figure 1 and Figure 2 As shown, in one embodiment, the water connection device 100 further includes a pressure plate 150 detachably connected to the inner water pipe 110. In this embodiment, the pressure plate 150 is provided with a buckle 154 adapted to the inner water pipe 110. The buckle 154 of the pressure plate 150 is fastened to the inner water pipe 110. In other embodiments, the pressure plate 150 may also be connected to the inner water pipe 110 by means of connecting bolts or the like.

[0043] like Figure 2 , Figure 5 and Figure 6 As shown, the pressure plate 150 has a through hole 153 located at the water outlet 111, and as... Figure 2 As shown, the one-way valve gasket 120 is sandwiched between the inner water pipe 110 and the pressure plate 150 to connect the one-way valve to the inner water pipe 110 and prevent the inner water pipe 110 from shifting.

[0044] like Figure 2 , Figure 5 and Figure 6 As shown, in one embodiment, the pressure plate 150 includes a main plate 151 and a limiting portion 152 located on the cover tongue 121. The limiting portion 152 protrudes from the end face of the main plate 151 away from the inner water pipe 110, and a through hole 153 is provided at the end of the limiting portion 152 away from the inner water pipe 110. The limiting portion 152 is partially located on the deformation path of the cover tongue 121 toward the side away from the inner water pipe 110, so as to limit the deformation path of the cover tongue 121 by limiting the limiting portion 152, so that the cover tongue 121 cannot deform toward the side away from the inner water pipe 110, thereby preventing the cover tongue 121 from continuing to deform after being in the initial position, causing the outlet 111 to partially open.

[0045] like Figure 2 , Figure 5 and Figure 6 As shown, in one embodiment, the limiting part 152 includes a connecting pipe 1522 and a stop block 1521. The connecting pipe 1522 is connected to the main board 151, and the stop block 1521 is located at the end of the connecting pipe 1522 away from the main board 151. The stop block 1521 extends from the connecting pipe 1522 toward the through hole 153, and the stop block 1521 includes an abutment surface 1523 perpendicular to the axis of the through hole 153 and facing the inner water pipe 110. The abutment surface 1523 is located on the path of the covering tongue 121 deforming toward the side away from the inner water pipe 110, so that the covering tongue 121 cannot deform toward the side away from the inner water pipe 110, thereby preventing the covering tongue 121 from continuing to deform after being in the initial position, causing the outlet 111 to partially open.

[0046] like Figure 2 As shown, the abutment surface 1523 at least covers the gap between the edge of the cover tongue 121 and the main body 122 when the cover tongue 121 is in the initial position, so that when the cover tongue 121 is in the initial state, the gap between the edge of the cover tongue 121 and the main body 122 is retained, and the abutment surface 1523 can seal the gap between the edge of the cover tongue 121 and the main body 122, thereby ensuring the sealing effect of the cover tongue 121 on the outlet 111 when the cover tongue 121 is in the initial state.

[0047] In one embodiment, the projection of the through hole 153 is located inside the projection of the covering tongue 121 along the axial direction of the through hole 153, so that the portion constituting the peripheral wall of the through hole 153 can form an abutment surface 1523 that seals the gap between the covering tongue 121 and the main body piece 122. In this embodiment, both the through hole 153 and the covering tongue 121 are circular, and the diameter of the through hole 153 is smaller than the diameter of the covering tongue 121. In other embodiments, the through hole 153 and the covering tongue 121 can also be other shapes, such as square, rectangular, rhomboid, or other polygonal structures, in which case the area of ​​the through hole 153 is smaller than the area of ​​the covering tongue 121.

[0048] like Figure 2 and Figure 6 As shown, in one embodiment, the stop block 1521 includes a stop segment 15212, which is arranged axially along the through hole 153 and is used to construct the through hole 153. The end face of the stop segment 15212 facing the inner water pipe 110 is the abutment surface 1523. The stop segment 15212 not only limits the position of the cover tongue 121, but also supports and fixes the water pipe 130.

[0049] like Figure 2 and Figure 6 As shown, in one embodiment, the stop block 1521 further includes a connecting section 15211. The two ends of the connecting section 15211 are respectively connected to the outer periphery of the limiting portion 152 and the stop section 15212. The connecting section 15211 includes a guide surface 1524 inclined towards the inner water pipe 110 in the direction from the outer periphery of the limiting portion 152 toward the through hole 153. The guide surface 1524 can guide the insertion of the connecting water pipe 130 into the through hole 153, facilitating the alignment of the connecting water pipe 130 for insertion into the through hole 153. In this embodiment, the connecting section 15211 is inclined towards the inner water pipe 110 in the direction from the outer periphery of the limiting portion 152 toward the through hole 153.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A waterway connection device, characterized in that, The waterway connection device includes: The internal water pipe has an outlet. A one-way valve gasket, connected to the inner water pipe, includes a cover tongue located at the outlet. The cover tongue is made of a deformable material and has an initial state and a deformed state. The cover tongue deforms from the initial state toward the interior of the inner water pipe to switch to the deformed state. When the cover tongue is in the initial state, it covers and blocks the outlet. When the cover tongue is in the deformed state, the outlet is at least partially open. A water pipe is detachably inserted into the water outlet, and during the insertion of the water pipe into the water outlet, the covering tongue deforms to switch to a deformed state.

2. The waterway connection device according to claim 1, characterized in that, The inner water pipe has multiple water outlets, and each water outlet corresponds to a one-way valve gasket.

3. The waterway connection device according to claim 1, characterized in that, The one-way valve gasket also includes a main body piece, which has an opening at the outlet. When the cover tongue is in its initial state, it covers at least part of the opening. Part of the edge of the cover tongue is fixedly connected to the main body piece, and the edges of other parts of the cover tongue are separated from the main body piece.

4. The waterway connection device according to claim 3, characterized in that, The water circuit connection device also includes a pressure plate detachably connected to the inner water pipe, the pressure plate having a through hole for the outlet, and the one-way valve gasket sandwiched between the inner water pipe and the pressure plate.

5. The waterway connection device according to claim 4, characterized in that, The pressure plate includes a main board and a limiting part located on the cover tongue. The limiting part protrudes from the end face of the main board away from the inner water pipe, and the through hole is located at the end of the limiting part away from the inner water pipe. The limiting part is partially located on the path of the deformation of the cover tongue toward the side away from the inner water pipe.

6. The waterway connection device according to claim 5, characterized in that, The limiting part includes a connecting pipe and a stop block. The connecting pipe is connected to the main board, and the stop block is located at the end of the connecting pipe away from the main board. The stop block extends from the connecting pipe toward the through hole, and the stop block includes an abutment surface perpendicular to the axis of the through hole and facing the inner water pipe. The abutment surface at least covers the edge of the cover tongue that is separated from the main body piece when the cover tongue piece is in the initial position and the gap between the main body piece and the main body piece.

7. The waterway connection device according to claim 6, characterized in that, Along the axis of the through hole, the projection of the through hole is located inside the projection of the covering tongue.

8. The waterway connection device according to claim 7, characterized in that, The stop block includes a stop section, which is arranged along the axial direction of the through hole and is used to construct the through hole. The end face of the stop section facing the inner water pipe is the abutment surface.

9. The waterway connection device according to claim 8, characterized in that, The stop block further includes a connecting section, the two ends of which are respectively connected to the outer periphery of the limiting part and the stop section. The connecting section includes a guide surface that is inclined in a direction close to the inner water pipe from the outer periphery of the limiting part toward the through hole.

10. The waterway connection device according to claim 1, characterized in that, The water connection device also includes a spray arm, which is connected to the end of the connecting water pipe away from the outlet.

11. A dishwasher, characterized in that, Includes the waterway connection device as described in any one of claims 1-10.

Images