Inner water pipe assembly and dish washing machine

Abstract

The utility model discloses an inner water pipe assembly which comprises an inner water pipe body, a cover body and a movable ball, two first guide plates are integrally formed in a water outlet cavity of the inner water pipe body, two second guide plates are integrally formed on the cover body, and during installation, only the movable ball needs to be arranged between the two first guide plates, and the cover body is covered. And the movable ball is embedded into the guide groove between the two second guide plates, so that the installation is very simple and convenient. The cover body is provided with two water outlet channels, the inner ends of the water outlet channels are provided with limiting parts with the diameters gradually reduced from inside to outside, the two ends of the first guide plate are provided with arc-shaped guide faces capable of abutting against the corresponding limiting parts, and therefore the movable balls can move along the guide grooves to be embedded into the limiting parts and block the corresponding water outlet channels. Therefore, the device can adapt to upper spraying arms with different heights and is high in reliability. In addition, the utility model further discloses the dish washing machine with the inner water pipe assembly.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, and in particular to an internal water pipe assembly and a dishwasher. Background Technology

[0002] Existing dishwashers typically have two racks, with corresponding upper and lower spray arms. The lower spray arm is directly connected to the water supply pipe, while the upper spray arm is fixed to the upper rack and connected to the water supply pipe via an internal water pipe. However, to accommodate dishes of different sizes and to allocate internal space according to dish dimensions, the upper rack is usually designed to be adjustable. The height of the upper spray arm changes with the rack's position. To ensure water flows to the upper spray arm from the internal water pipe at different heights, two outlets at different heights are typically installed on the internal water pipe, along with corresponding adjustment mechanisms to open or close these outlets. Existing adjustment mechanisms are complex, cumbersome, and unreliable. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an internal water pipe assembly that is easy to install, has high reliability, and can adapt to upper spray arms of different heights.

[0004] This utility model also proposes a dishwasher having the above-mentioned internal water pipe assembly.

[0005] According to an embodiment of the present utility model, an inner water pipe assembly includes: an inner water pipe body having a water delivery channel and a water outlet cavity, the lower end of the water delivery channel having a water inlet and the upper end of the water delivery channel having a water outlet cavity located at the upper end of the water delivery channel, the water outlet cavity located on the lower inner wall of the water outlet cavity and communicating with the water outlet cavity, and the side wall of the inner water pipe body having an installation port communicating with the water outlet cavity; a cover body covering the inner water pipe body and sealing the installation port, the cover body being integrally formed with two outwardly extending water outlet channels, the two water outlet channels being spaced apart in the vertical direction, the inner end of the water outlet channels having a limiting part with a gradually decreasing diameter from the inside to the outside, the minimum diameter of the limiting part being d1, and the maximum diameter of the limiting part being d2; and a first guide structure including two first guide plates integrally formed on the bottom wall of the water outlet cavity, the first guide plates being arranged in the vertical direction and connected to the upper and lower inner walls of the water outlet cavity, the two first guide plates being spaced apart in the width direction of the water outlet cavity. The first guide plate has a spacing of a1 between the two first guide plates. Each first guide plate has a U-shaped groove with its opening facing the mounting port. The U-shaped groove has two arc-shaped guide surfaces arranged opposite each other in the vertical direction. The two water outlet channels are located between the two arc-shaped guide surfaces. One end of each arc-shaped guide surface facing the mounting port can abut against the corresponding limiting part. The second guide structure includes two second guide plates integrally formed on the inner wall of the cover body. The second guide plates are arranged vertically between the two limiting parts. The two second guide plates are spaced apart along the width direction of the inner water pipe body and form a guide groove arranged vertically. The spacing between the two second guide plates is a2. A movable ball is movably installed in the guide groove and partially located between the two first guide plates. The diameter of the movable ball is D, where a1 < D ≤ a2, d1 < D < d2. The movable ball can move along the guide groove, embed itself into one of the limiting parts, and block the corresponding water outlet channel.

[0006] The internal water pipe assembly according to the embodiments of this utility model has at least the following beneficial effects:

[0007] In the inner water pipe assembly of this utility model embodiment, the inner water pipe assembly is divided into an inner water pipe body and a cover. During installation, it is only necessary to place the movable ball between the two first guide plates in the water outlet chamber and cover it, so that the movable ball is embedded in the guide groove between the two second guide plates on the cover. The installation is very simple and convenient. Moreover, during use, due to the setting of the first guide structure and the second guide structure, and the setting of the limiting part with the diameter gradually decreasing from the inside to the outside at the inner end of the water outlet channel, and the setting of the arc-shaped guide surface at both ends of the first guide plate that can abut against the corresponding limiting part, the movable ball can move along the guide groove, embed itself in the limiting part, and block the corresponding water outlet channel, thereby adapting to the upper spray arm of different heights and having high reliability.

[0008] According to some embodiments of the present invention, the inner wall of the cover is further provided with a third guide structure, the third guide structure including two third guide plates arranged in the vertical direction between the two limiting portions, the two third guide plates being located between the two second guide plates and arranged in a one-to-one correspondence with the two first guide plates.

[0009] According to some embodiments of this utility model, the upper end of the inner water pipe body has an outwardly protruding protrusion, the water outlet cavity is opened in the inner water pipe body and extends through the protrusion, and the installation port is opened in the protrusion; the width of the water outlet cavity is smaller than the width of the water delivery channel, the water outlet is opened on the lower inner wall of the water outlet cavity, the upper end of the water delivery channel is provided with two first guide surfaces, the two first guide surfaces are correspondingly arranged on both sides of the water outlet along the width direction of the water delivery channel, the first guide surfaces are connected to the inner wall of the water delivery channel and extend upward toward the edge of the water outlet.

[0010] According to some embodiments of the present invention, the upper end of the water outlet cavity is provided with a second guide surface, the second guide surface extends from bottom to top and is arranged toward the mounting port, and the lower end of the second guide surface is connected to the inner bottom wall of the water outlet cavity, and the upper end of the second guide surface is connected to the upper inner wall of the water outlet cavity.

[0011] According to some embodiments of the present invention, in the first guide structure, the lower end of the first guide plate is connected to the lower inner wall of the water outlet cavity and is located on the side of the water outlet near the mounting port. The lower end of the first guide plate is provided with a clearance groove communicating with the water outlet. The inner wall of the clearance groove has a third guide surface. The third guide surface extends upward from the edge of the water outlet near the mounting port to connect with the inner bottom wall of the water outlet cavity.

[0012] According to some embodiments of this utility model, the cover body has a cover groove adapted to the protrusion, a sealing gasket is provided in the cover groove, the sealing gasket has a clearance hole adapted to the mounting opening, and at least one positioning hole is also provided on the sealing gasket. The inner bottom wall of the cover groove is provided with a positioning post adapted to the positioning hole. The cover body is sleeved on the outer periphery of the protrusion, such that the inner peripheral wall of the cover groove fits against the outer peripheral wall of the protrusion. The sealing gasket is sandwiched between the cover body and the protrusion. The peripheral wall of the cover groove has at least one latch, and the outer peripheral wall of the protrusion has a latching block corresponding to the latch. The latching block has a fourth guide surface that is inclined outward in a direction away from the cover body.

[0013] According to some embodiments of the present invention, the water delivery channel includes a first channel and a second channel that are independent of each other. The first channel and the second channel are arranged at intervals along the width direction of the water outlet cavity. The water inlet includes a first water inlet and a second water inlet. The first water inlet is connected to the first channel, and the second water inlet is connected to the second channel. The water outlet includes a first water outlet and a second water outlet on the lower inner wall of the water outlet cavity. The first water outlet is connected to the first channel, and the second water outlet is connected to the second water inlet. Both the first water outlet and the second water outlet are connected to the water outlet cavity. One of the first guide surfaces is located on the side of the first water outlet away from the second water outlet, and the other first guide surface is located on the side of the second water outlet away from the first water outlet.

[0014] According to some embodiments of this utility model, the inner water pipe body is arranged in an L-shape. A filter structure is provided on the side of the inner water pipe body away from the water outlet cavity. The filter structure includes a connecting part and a filtering part. The lower ends of the first channel and the second channel are both horizontally inserted through the connecting part. The first water inlet is located inside the lower side of the first channel and extends downward through the connecting part. The second water inlet is located inside the lower side of the second channel and extends downward through the connecting part. The connecting part is also provided with a third water inlet for connecting the lower spray arm. The third water inlet extends through the connecting part in a vertical direction. The filtering part is located on the outer periphery of the connecting part and has multiple filter holes. The filtering part is also provided with an installation structure for connecting to the bottom wall of the inner tank.

[0015] According to some embodiments of this utility model, the upper and / or lower surfaces of the filter section are provided with multiple ribs; the first water inlet, the second water inlet, and the third water inlet are all arranged downward relative to the connecting part, and the first water inlet and the second water inlet are both located on the side of the third water inlet closer to the inner water pipe body. The mounting structure includes a first insertion hole and a second insertion hole provided on the lower surface of the filter section. The first insertion hole and the second insertion hole are correspondingly provided on both sides of the connecting part along the width direction of the connecting part. The outer walls of the first water inlet, the first insertion hole, the third water inlet, the second insertion hole, and the second water inlet are connected in series by connecting ribs. The connecting ribs are provided on the lower surface of the filter section and / or the connecting part and are arranged to protrude downward.

[0016] The dishwasher according to an embodiment of the present invention is provided with an inner water pipe assembly according to any of the above embodiments.

[0017] The dishwasher according to the embodiments of the present invention has at least the following beneficial effects:

[0018] By configuring the inner water pipe assembly according to any of the above embodiments, the inner water pipe assembly consists of an inner water pipe body and a cover. During installation, simply place the movable ball into the water outlet cavity of the inner water pipe body and then cover it with the cover; installation is very convenient. Furthermore, since the inner water pipe assembly also includes a first guide structure and a second guide structure, the movement of the movable ball can be guided and limited, allowing the movable ball to move along the guide groove, embed itself into one of the limiting parts, and block the corresponding water outlet channel. This allows it to adapt to upper spray arms of different heights and provides high reliability, thereby making the dishwasher more convenient to use and improving the user experience.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the inner water pipe assembly according to an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of the inner water pipe assembly according to an embodiment of the present utility model;

[0023] Figure 3 This is a partial cross-sectional schematic diagram of the inner water pipe assembly according to an embodiment of the present utility model;

[0024] Figure 4 This is a cross-sectional schematic diagram of the inner water pipe assembly according to an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the cover body according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the upper end structure of the inner water pipe in an embodiment of the present utility model;

[0027] Figure 7 This is a cross-sectional schematic diagram of the inner water pipe according to an embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram of the lower cross-section of the inner water pipe in an embodiment of this utility model;

[0029] Figure 9 This is a schematic diagram of the filter structure according to an embodiment of the present invention.

[0030] Figure label:

[0031] The system includes: inner water pipe body 100, water delivery channel 110, first channel 111, second channel 112, water outlet chamber 120, water inlet 130, first water inlet 131, second water inlet 132, third water inlet 133, water outlet 140, first water outlet 141, second water outlet 142, first guide plate 150, arc-shaped guide surface 151, protrusion 160, locking block 161, first guide surface 170, second guide surface 180, and third guide surface 190.

[0032] Cover 200, water outlet channel 210, limiting part 211, second guide plate 220, third guide plate 230, cover groove 240, positioning post 241, annular boss 242, sealing gasket 250, positioning hole 251, clearance hole 252, bayonet 260;

[0033] 300 activity balls;

[0034] The filter structure 400 includes a connecting part 410, a filtering part 420, a filtering hole 421, a rib 422, a first insertion hole 430, a second insertion hole 440, and a connecting rib 450. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are 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.

[0037] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0038] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0039] Reference Figures 1 to 7An embodiment of this utility model provides an inner water pipe assembly, which includes an inner water pipe body 100, a cover 200, and a movable ball 300. The inner water pipe body 100 has a water delivery channel 110 and a water outlet cavity 120. The lower end of the water delivery channel 110 has a water inlet 130, and the upper end of the water delivery channel 110 has a water outlet 140. The water outlet cavity 120 is located at the upper end of the water delivery channel 110, and the water outlet 140 is located on the lower inner wall of the water outlet cavity 120 and communicates with the water outlet cavity 120. The side wall of the inner water pipe body 100 has an installation port that communicates with the water outlet cavity 120. A cover 200 is fitted over the inner water pipe body 100 and seals the installation port. The cover 200 is integrally formed with two outwardly extending water outlet channels 210, which are arranged at intervals in the vertical direction. The inner end of each water outlet channel 210 is provided with a limiting part 211 whose diameter gradually decreases from the inside to the outside. The minimum diameter of the limiting part 211 is d1, and the maximum diameter of the limiting part 211 is d2. Specifically, the inner end of the water outlet channel 210 refers to the end of the water outlet channel 210 that is close to the water outlet cavity 120. A first guide structure is provided inside the water outlet cavity 120. The first guide structure includes two first guide plates 150 integrally formed on the inner bottom wall of the water outlet cavity 120. Specifically, the inner bottom wall of the water outlet cavity 120 refers to the inner wall of the water outlet cavity 120 on the side opposite to the installation port. The first guide plate 150 is arranged vertically and connected to the upper and lower inner walls of the water outlet cavity 120. Two first guide plates 150 are spaced apart along the width of the water outlet cavity 120, with a spacing of a1 between them. Each first guide plate 150 has a U-shaped groove with its opening facing the installation port. The U-shaped groove has two arc-shaped guide surfaces 151 arranged opposite each other vertically. Two water outlet channels 210 are located between the two arc-shaped guide surfaces 151. The ends of the two arc-shaped guide surfaces 151 facing the installation port can abut against the corresponding limiting part 211. The cover 200 is provided with a second guide structure, which includes two... A second guide plate 220 is formed on the inner wall of the cover 200. The second guide plate 220 is arranged between two limiting parts 211 in the vertical direction. The two second guide plates 220 are arranged at intervals along the width direction of the inner water pipe body 100 and form a guide groove arranged in the vertical direction. The distance between the two second guide plates 220 is a2. A movable ball 300 is movably installed in the guide groove and is partially located between two first guide plates 150. The diameter of the movable ball 300 is D, where a1 < D ≤ a2, d1 < D < d2. The movable ball 300 can move along the guide groove and embed into one of the limiting parts 211 and block the corresponding water outlet channel 210.

[0040] In the inner water pipe assembly of this utility model embodiment, the inner water pipe assembly is divided into an inner water pipe body 100 and a cover 200. A water outlet cavity 120 is opened on the inner water pipe body 100, and a first guide structure is integrally formed in the water outlet cavity 120. The cover 200 is integrally formed with a second guide structure. During installation, it is only necessary to place the movable ball 300 between the two first guide plates 150 in the water outlet cavity 120 and cover the cover 200, so that the movable ball 300 is embedded in the guide groove between the two second guide plates 220 on the cover 200. The installation is very simple and convenient. Furthermore, during use, due to the setting of the first guide structure and the second guide structure, the distance between the two first guide plates 150 is a1, the distance between the two second guide plates 220 is a2, and the diameter of the movable ball 300 is D, where a1 < D ≤ a2. This allows the movable ball 300 to be confined between the two second guide plates 220 and enables the movable ball 300 to move up and down along the guide groove. The setting of the two first guide plates 150 can further guide and limit the movable ball 300, thereby making the up and down movement of the movable ball 300 more stable and reliable. Furthermore, by providing a limiting part 211 with a gradually decreasing diameter from the inside to the outside at the inner end of the water outlet channel 210, the minimum diameter of the limiting part 211 is d1, the maximum diameter of the limiting part 211 is d2, d1 < D < d2, and by providing arc-shaped guide surfaces 151 at both ends of the first guide plate 150 that can abut against the corresponding limiting part 211, when the upper spray arm is connected to the lower water outlet channel 210, the movable ball 300 can move upward along the guide groove to the upper arc-shaped guide surface 151 under the impact of the water flow from bottom to top in the water delivery channel 110, and move along the upper arc-shaped guide surface 151 to embed into the corresponding limiting part 211 and block the upper water outlet channel 210. When the upper spray arm is connected to the upper water outlet channel 210, the movable ball 300 can move downward along the guide groove to the lower arc-shaped guide surface 151 under the action of gravity, and then move along the lower arc-shaped guide surface 151 to embed into the corresponding limiting part 211 and block the lower water outlet channel 210. This allows the movable ball 300 to move along the guide groove, embed into the limiting part 211, and block the corresponding water outlet channel 210, thus adapting to upper spray arms of different heights and exhibiting high reliability.

[0041] Reference Figures 1 to 7 In some embodiments, the inner wall of the cover 200 is also provided with a third guide structure, which includes two third guide plates 230 arranged in the vertical direction between the two limiting parts 211. The two third guide plates 230 are located between the two second guide plates 220 and are arranged in a one-to-one correspondence with the two first guide plates 150.

[0042] In the above structure, by setting a third guide structure on the inner wall of the cover 200, in which two third guide plates 230 and two first guide plates 150 are arranged in a one-to-one correspondence, the movable ball 300 can be further guided and limited from opposite sides, which is beneficial to improving the reliability of the movable ball 300 during movement and adjustment.

[0043] Reference Figures 1 to 7 In some embodiments, the upper end of the inner water pipe body 100 has an outwardly protruding protrusion 160, the water outlet cavity 120 is opened in the inner water pipe body 100 and extends through the protrusion 160, and the installation port is opened in the protrusion 160. The width of the water outlet cavity 120 is smaller than the width of the water delivery channel 110, and the water outlet 140 is opened on the lower inner wall of the water outlet cavity 120. The upper end of the water delivery channel 110 is provided with two first guide surfaces 170, which are correspondingly arranged on both sides of the water outlet 140 along the width direction of the water delivery channel 110. The first guide surfaces 170 are connected to the inner wall of the water delivery channel 110 and extend upward toward the edge of the water outlet 140.

[0044] In the above structure, the protrusion 160 facilitates the opening of the water outlet cavity 120 and the installation port, increases the depth of the water outlet cavity 120, and allows the movable ball 300 to move smoothly within the water outlet cavity 120. By providing two first guide surfaces 170 extending upward to the edge of the water outlet 140 at the upper end of the water delivery channel 110, the water in the water outlet channel 210 can be guided to flow smoothly upward into the water outlet cavity 120.

[0045] It is understood that the first guide surface 170 mentioned above can be an arc-shaped curved surface or an inclined plane, and this utility model does not specifically limit it in this regard.

[0046] Reference Figures 1 to 7 In some embodiments, the upper end of the water outlet cavity 120 is provided with a second guide surface 180. The second guide surface 180 extends from bottom to top and is arranged toward the mounting port. The lower end of the second guide surface 180 is connected to the inner bottom wall of the water outlet cavity 120, and the upper end of the second guide surface 180 is connected to the upper inner wall of the water outlet cavity 120.

[0047] In the above structure, by setting a second guide surface 180, when the water flows upward along the water delivery channel 110 to the water outlet cavity 120, it is easy to continue to flow upward due to inertia. The second guide surface 180 extends from bottom to top and is arranged towards the installation port, which can reduce the resistance to the water flow and prevent the water flow from impacting the upper inner wall of the water outlet cavity 120 and flowing directly downward.

[0048] It is understood that the second guide surface 180 can be set as an arc-shaped curved surface or an inclined plane, and this utility model does not specifically limit it in this regard.

[0049] Reference Figures 1 to 7 In some embodiments, in the first guide structure, the lower end of the first guide plate 150 is connected to the lower inner wall of the water outlet cavity 120 and is located on the side of the water outlet 140 near the installation port. The lower end of the first guide plate 150 is provided with a relief groove that communicates with the water outlet 140. The inner wall of the relief groove has a third guide surface 190. The third guide surface 190 extends upward from the edge of the water outlet 140 near the installation port to connect with the inner bottom wall of the water outlet cavity 120.

[0050] In the above structure, by opening a relief groove at the lower end of the first guide plate 150 and setting the inner wall of the relief groove as the third guide surface 190, the obstruction effect of the first guide plate 150 on the water flow in the water delivery channel 110 can be reduced, and the water flow in the water delivery channel 110 can be guided to move upward to the water outlet cavity 120.

[0051] It is understood that the third guide surface 190 can be specifically set as an arc-shaped curved surface or an inclined plane, and this utility model does not specifically limit it in this regard.

[0052] Reference Figures 1 to 7 In some embodiments, the cover 200 has a cover groove 240 adapted to the protrusion 160, a sealing gasket 250 is provided in the cover groove 240, the sealing gasket 250 has a relief hole 252 adapted to the installation opening, and at least one positioning hole 251 is also provided on the sealing gasket 250. The inner bottom wall of the cover groove 240 is provided with a positioning post 241 adapted to the positioning hole 251. The cover 200 is sleeved on the outer periphery of the protrusion 160 such that the inner peripheral wall of the cover groove 240 fits against the outer peripheral wall of the protrusion 160, and the sealing gasket 250 is sandwiched between the cover 200 and the protrusion 160. The peripheral wall of the cover groove 240 has at least one latch 260, and the outer peripheral wall of the protrusion 160 has a latch block 161 corresponding to the latch 260. The latch block 161 has a fourth guide surface that is inclined outward in a direction away from the cover 200.

[0053] In the above structure, by providing a cover groove 240 on the cover 200 that matches the protrusion 160, a sealing gasket 250 can be easily placed inside the cover groove 240, thereby improving the sealing performance between the cover 200 and the inner water pipe body 100. Simultaneously, a snap-fit ​​260 can be provided on the peripheral wall of the cover groove 240, allowing the protrusion 160 to be embedded into the cover groove 240 and engaged with the snap-fit ​​260 by the snap-fit ​​block 161, thus improving the connection stability between the cover 200 and the inner water pipe body 100. By providing a positioning hole 251 on the sealing gasket 250 and a positioning post 241 on the inner wall of the cover groove 240, the installation of the sealing gasket 250 can be facilitated. The clearance hole 252 on the sealing gasket 250 allows for the movement of the movable ball 300, enabling the movable ball 300 to move along the guide groove between the two water outlet channels 210.

[0054] Understandably, referring to Figures 1 to 7 To further facilitate the positioning and installation of the sealing gasket 250, an annular boss 242 can be provided on the inner wall of the cover groove 240 facing the water outlet cavity 120. The annular boss 242 can be embedded in the installation opening, and the clearance hole 252 of the sealing gasket 250 can be fitted around the outer periphery of the annular boss 242, thereby making the installation of the sealing gasket 250 more convenient.

[0055] Reference Figures 1 to 9 In some embodiments, the water delivery channel 110 includes a first channel 111 and a second channel 112 that are independent of each other. The first channel 111 and the second channel 112 are arranged at intervals along the width direction of the water outlet cavity 120. The water inlet 130 includes a first water inlet 131 and a second water inlet 132. The first water inlet 131 is connected to the first channel 111, and the second water inlet 132 is connected to the second channel 112. The water outlet 140 includes a first channel 131 on the lower inner wall of the water outlet cavity 120. The system includes a water outlet 141 and a water outlet 142. The first water outlet 141 is connected to the first channel 111, and the second water outlet 142 is connected to the second water inlet 132. Both the first water outlet 141 and the second water outlet 142 are connected to the water outlet cavity 120. One of the first guide surfaces 170 is located on the side of the first water outlet 141 away from the second water outlet 142, and the other first guide surface 170 is located on the side of the second water outlet 142 away from the first water outlet 141.

[0056] In the above structure, by dividing the water delivery channel 110 into an independent first channel 111 and a second channel 112, the amount of water delivered to the water outlet chamber 120 can be easily adjusted, which is convenient for users and helps to improve the applicability of the inner water pipe assembly.

[0057] Reference Figures 1 to 9In some embodiments, the inner water pipe body 100 is arranged in an L-shape. A filter structure 400 is provided on the side of the inner water pipe body 100 away from the water outlet cavity 120. The filter structure 400 includes a connecting part 410 and a filtering part 420. The lower ends of the first channel 111 and the second channel 112 are both horizontally inserted into the connecting part 410. The first water inlet 131 is located inside the lower side of the first channel 111 and extends downward into the connecting part 410. The second water inlet 132 is located inside the lower side of the second channel 112 and extends downward into the connecting part 410. The connecting part 410 is also provided with a third water inlet 133 for connecting the lower spray arm. The third water inlet 133 extends through the connecting part 410 in a vertical direction. The filtering part 420 is located on the outer periphery of the connecting part 410 and is provided with a plurality of filter holes 421. The filtering part 420 is also provided with an installation structure for connecting to the bottom wall of the inner tank.

[0058] In the above structure, by setting the inner water pipe body 100 into an L-shaped structure and setting a filter structure 400 at the bottom end of the inner water pipe body 100, the filter structure 400 includes a connecting part 410 and a filtering part 420. The mounting structure on the filtering part 420 can be connected to the bottom wall of the inner tub of the dishwasher, thereby facilitating the installation of the inner water pipe assembly and allowing for a reasonable layout of the internal space of the inner tub. By extending the first channel 111 and the second channel 112 horizontally to the connecting part 410, and by extending the first water inlet 131 and the second water inlet 132 downward through the connecting part 410, it is possible to connect to the external water inlet pipe from below the connecting part 410. By opening a third water inlet 133 independent of the first water inlet 131 and the second water inlet 132 in the connecting part 410, it is possible to easily connect to the external water inlet pipe and install the lower spray arm. Thus, the installation of the lower spray arm and the supply of water to the lower spray arm can be achieved through the inner water pipe assembly, which helps to improve the compactness of the internal structure of the dishwasher. In addition, the filter section 420 can filter the residue at the bottom of the inner tank. In this embodiment of the invention, the inner water pipe body 100 is combined with the filter structure, so that the inner water pipe assembly also has the function of filtering residue, and can facilitate the installation and assembly of the internal structure of the dishwasher.

[0059] Reference Figures 1 to 9 In some embodiments, the upper surface of the filter section 420 is provided with multiple raised ribs 422, which can greatly improve the structural strength of the filter section 420. It is understood that, for a more balanced and stable structure, the multiple raised ribs 422 can be distributed on opposite sides of the connecting section 410. Furthermore, to enhance the structure of the filter section 420, in addition to providing raised ribs 422 on the upper surface of the filter section 420, raised ribs 422 can also be provided on the lower surface of the filter section 420, or raised ribs 422 can be provided on both the upper and lower surfaces of the filter section 420. This invention does not specifically limit the application of these methods.

[0060] Reference Figures 1 to 9 In some embodiments, the first inlet 131, the second inlet 132, and the third inlet 133 are all arranged to extend downward relative to the connecting portion 410. The first inlet 131 and the second inlet 132 are both located on the side of the third inlet 133 closer to the inner water pipe body 100. The installation structure includes a first insertion hole 430 and a second insertion hole 440 provided on the lower surface of the filter portion 420. The first insertion hole 430 and the second insertion hole 440 are correspondingly provided on both sides of the connecting portion 410 along the width direction of the connecting portion 410. The outer walls of the first inlet 131, the first insertion hole 430, the third inlet 133, the second insertion hole 440, and the second inlet 132 are connected in series by connecting ribs 450. The connecting ribs 450 are provided on the lower surface of the filter portion 420 and / or the connecting portion 410 and are arranged to protrude downward. The connecting rib 450 can further improve the strength of the filter structure and reduce the risk of the filter part 420 being deformed or damaged under pressure.

[0061] An embodiment of this utility model also proposes a dishwasher, which is provided with the inner water pipe assembly of any of the above embodiments.

[0062] In the dishwasher of this utility model embodiment, by providing an inner water pipe assembly according to any of the above embodiments, the inner water pipe assembly is divided into an inner water pipe body 100 and a cover 200. During installation, it is only necessary to place the movable ball 300 in the water outlet cavity 120 of the inner water pipe body 100, and then cover it with the cover 200, which is very convenient. In addition, since the inner water pipe assembly is also provided with a first guide structure and a second guide structure, the movement of the movable ball 300 can be guided and limited, so that the movable ball 300 can move along the guide groove and embed into one of the limiting parts 211 and block the corresponding water outlet channel 210. This can adapt to upper spray arms of different heights and has high reliability, thereby making the dishwasher more convenient to use and improving the user experience.

[0063] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An internal water pipe assembly, characterized in that, include: The inner water pipe body (100) has a water delivery channel (110) and a water outlet cavity (120). The lower end of the water delivery channel (110) has a water inlet (130), and the upper end of the water delivery channel (110) has a water outlet (140). The water outlet cavity (120) is located at the upper end of the water delivery channel (110), and the water outlet (140) is located on the lower inner wall of the water outlet cavity (120) and communicates with the water outlet cavity (120). The side wall of the inner water pipe body (100) has an installation port that communicates with the water outlet cavity (120). A cover (200) is installed on the inner water pipe body (100) and seals the installation port. The cover (200) is integrally formed with two outwardly extending water outlet channels (210). The two water outlet channels (210) are arranged at intervals in the vertical direction. The inner end of the water outlet channel (210) is provided with a limiting part (211) whose diameter gradually decreases from the inside to the outside. The minimum diameter of the limiting part (211) is d1, and the maximum diameter of the limiting part (211) is d2. The first guide structure includes two first guide plates (150) integrally formed on the bottom wall of the water outlet cavity (120). The first guide plates (150) are arranged in the vertical direction and connected to the upper and lower inner walls of the water outlet cavity (120). The two first guide plates (150) are arranged at intervals along the width direction of the water outlet cavity (120), and the distance between the two first guide plates (150) is a1. The first guide plate (150) is provided with a U-shaped groove with its opening facing the installation port. The U-shaped groove has two arc-shaped guide surfaces (151) arranged opposite to each other in the vertical direction. The two water outlet channels (210) are located between the two arc-shaped guide surfaces (151). One end of the two arc-shaped guide surfaces (151) facing the installation port can abut against the corresponding limiting part (211). The second guide structure includes two second guide plates (220) integrally formed on the inner wall of the cover (200). The second guide plates (220) are arranged in the vertical direction between the two limiting parts (211). The two second guide plates (220) are arranged at intervals along the width direction of the inner water pipe body (100) and form a guide groove arranged in the vertical direction. The distance between the two second guide plates (220) is a2. A movable ball (300) is movably mounted in the guide groove and partially located between the two first guide plates (150), the diameter of the movable ball (300) being D, wherein a1 < D ≤ a2, d1 < D < d2; The movable ball (300) can move along the guide groove to embed into one of the limiting parts (211) and block the corresponding water outlet channel (210).

2. The internal water pipe assembly according to claim 1, characterized in that, The inner wall of the cover (200) is also provided with a third guide structure, which includes two third guide plates (230) arranged in the vertical direction between the two limiting parts (211). The two third guide plates (230) are located between the two second guide plates (220) and are arranged in a one-to-one correspondence with the two first guide plates (150).

3. The internal water pipe assembly according to claim 1, characterized in that, The upper end of the inner water pipe body (100) has an outwardly protruding protrusion (160), the water outlet cavity (120) is opened in the inner water pipe body (100) and extends through the protrusion (160), and the installation port is opened in the protrusion (160). The width of the water outlet cavity (120) is smaller than the width of the water delivery channel (110). The water outlet (140) is located on the lower inner wall of the water outlet cavity (120). The upper end of the water delivery channel (110) is provided with two first guide surfaces (170). The two first guide surfaces (170) are arranged on both sides of the water outlet (140) along the width direction of the water delivery channel (110). The first guide surfaces (170) are connected to the inner wall of the water delivery channel (110) and extend upward toward the edge of the water outlet (140).

4. The internal water pipe assembly according to claim 3, characterized in that, The upper end of the water outlet cavity (120) is provided with a second guide surface (180). The second guide surface (180) extends from bottom to top and is arranged toward the mounting port. The lower end of the second guide surface (180) is connected to the inner bottom wall of the water outlet cavity (120), and the upper end of the second guide surface (180) is connected to the upper inner wall of the water outlet cavity (120).

5. The internal water pipe assembly according to claim 3, characterized in that, In the first guide structure, the lower end of the first guide plate (150) is connected to the lower inner wall of the water outlet cavity (120) and is located on the side of the water outlet (140) near the mounting port. The lower end of the first guide plate (150) is provided with a relief groove that communicates with the water outlet (140). The inner wall of the relief groove has a third guide surface (190). The third guide surface (190) extends upward from the edge of the water outlet (140) near the mounting port to connect with the inner bottom wall of the water outlet cavity (120).

6. The internal water pipe assembly according to claim 3, characterized in that, The cover (200) has a cover groove (240) adapted to the protrusion (160), a sealing gasket (250) is provided in the cover groove (240), the sealing gasket (250) has a relief hole (252) adapted to the mounting opening, the sealing gasket (250) also has at least one positioning hole (251), and the inner bottom wall of the cover groove (240) is provided with a positioning post (241) adapted to the positioning hole (251). The cover (200) is fitted around the outer periphery of the protrusion (160) and the inner peripheral wall of the cover groove (240) is in contact with the outer peripheral wall of the protrusion (160). The sealing gasket (250) is sandwiched between the cover (200) and the protrusion (160). The peripheral wall of the cover groove (240) is provided with at least one slot (260), and the outer peripheral wall of the protrusion (160) is provided with a locking block (161) corresponding to the slot (260). The locking block (161) has a fourth guide surface that is arranged outwardly in a direction away from the cover body (200).

7. The internal water pipe assembly according to claim 3, characterized in that, The water delivery channel (110) includes a first channel (111) and a second channel (112) that are independent of each other. The first channel (111) and the second channel (112) are arranged at intervals along the width direction of the water outlet cavity (120). The water inlet (130) includes a first water inlet (131) and a second water inlet (132). The first water inlet (131) is connected to the first channel (111), and the second water inlet (132) is connected to the second channel (112). The water outlet (140) includes a first water outlet (111) on the lower inner wall of the water outlet cavity (120). 41) and the second outlet (142), the first outlet (141) and the first channel (111) are connected, the second outlet (142) is connected to the second inlet (132), and the first outlet (141) and the second outlet (142) are both connected to the outlet cavity (120). One of the first guide surfaces (170) is located on the side of the first outlet (141) away from the second outlet (142), and the other first guide surface (170) is located on the side of the second outlet (142) away from the first outlet (141).

8. The internal water pipe assembly according to claim 7, characterized in that, The inner water pipe body (100) is arranged in an L-shape. A filter structure (400) is provided on the side of the inner water pipe body (100) away from the water outlet cavity (120). The filter structure (400) includes a connecting part (410) and a filtering part (420). The lower ends of the first channel (111) and the second channel (112) are both horizontally inserted into the connecting part (410). The first water inlet (131) is located inside the lower side of the first channel (111) and is inserted downward into the connecting part (410). The second water inlet (132) is located inside the lower side of the second channel (112) and is inserted downward into the connecting part (410). The connecting part (410) is also provided with a third water inlet (133) for connecting the lower spray arm. The third water inlet (133) penetrates the connecting part (410) in the vertical direction. The filter section (420) is located on the outer periphery of the connecting section (410) and has a plurality of filter holes (421). The filter section (420) is also provided with an installation structure for connecting to the bottom wall of the inner liner.

9. The internal water pipe assembly according to claim 8, characterized in that, The filter section (420) has multiple raised ribs (422) on its upper and / or lower surfaces. The first water inlet (131), the second water inlet (132), and the third water inlet (133) are all arranged to extend downward relative to the connecting part (410). The first water inlet (131) and the second water inlet (132) are both located on the side of the third water inlet (133) closer to the inner water pipe body (100). The mounting structure includes a first insertion hole (430) and a second insertion hole (440) disposed on the lower surface of the filter section (420). The first insertion hole (430) and the second insertion hole (440) are respectively disposed on both sides of the connecting section (410) along the width direction of the connecting section (410). The outer walls of the first water inlet (131), the first insertion hole (430), the third water inlet (133), the second insertion hole (440), and the second water inlet (132) are connected in series by connecting ribs (450). The connecting ribs (450) are provided on the lower surface of the filter part (420) and / or the connecting part (410) and are arranged to protrude downward.

10. A dishwasher, characterized in that, The system is equipped with an internal water pipe assembly as described in any one of claims 1 to 9.

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