Waterway structure and dish washing machine

Abstract

The utility model relates to the technical field of household appliances, and discloses a waterway structure and a dish-washing machine, and the waterway structure comprises a water cup and a shunt valve. The water cup is provided with a water dividing port, the water dividing valve comprises a water dividing valve body, the water dividing valve body and the cup wall of the water cup are integrally formed, and a valve cavity of the water dividing valve body is communicated with the water dividing port. The water dividing valve body and the cup wall of the water cup are integrally formed and processed, so that the water dividing valve body and the cup wall of the water cup can share part of materials, the total thickness of the joint of the water dividing valve body and the water cup is reduced, the overall size of the water cup and the water dividing valve body can be reduced, and the installation space needed by the water cup and the water dividing valve is reduced; the use requirement of the dish washing machine with the limited bottom space is met, and the problem that an existing water cup and an existing shunt valve are limited in installation due to the large size after assembly is solved. Meanwhile, the water dividing valve body and the water cup are integrally formed, connection is reliable, the water dividing valve body and the water cup do not need to be assembled in the later period, the assembling procedure is simplified, and the assembling efficiency of the dish washing machine can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a water channel structure and a dishwasher. Background Art

[0002] In order to ensure the washing effect of the dishwasher, a multi-layer spray arm is usually designed. When the dishwasher is working, the washing pump transports high-pressure water to multiple spray arms through pipes. The water sprays out from the spray arms to rinse the dishes and then returns to the water cup at the bottom of the dishwasher. Then, the washing pump transports the water in the water cup to multiple spray arms again, and the dishwashing is completed in this cycle. In order to save water, a water diverter valve is usually installed on the water cup. The water diverter valve controls the on and off of the pipes leading to each spray arm to achieve staged water washing, thereby reducing water consumption.

[0003] In the prior art, the water diverter valve is usually fixed to the water cup by screws. The two are split designs. The assembled water cup and water diverter valve require a large installation space, which cannot meet the use requirements of dishwashers with limited bottom space. In addition, the method of assembling the water diverter valve and the water cup by screws increases the assembly process and has low assembly efficiency.

[0004] Therefore, there is an urgent need for a water channel structure and a dishwasher to solve the above problems. Utility Model Content

[0005] Based on the above problems, the purpose of the utility model is to provide a water channel structure and a dishwasher, which can reduce the space required for installing a water cup and a water diverter valve, while simplifying the installation steps of the water diverter valve and improving the assembly efficiency of the dishwasher.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] On the one hand, a waterway structure is provided, comprising:

[0008] A water cup is installed at the bottom of the inner tank of the dishwasher, and the water cup is provided with a water outlet;

[0009] The water diversion valve comprises a water diversion valve body, wherein the water diversion valve body is integrally formed with the cup wall of the water cup, and the valve cavity of the water diversion valve body is communicated with the water diversion port.

[0010] As a preferred solution of the water channel structure of the utility model, the water diversion valve body is provided with a water inlet pipe, the water inlet pipe is connected to the valve cavity of the water diversion valve body, the tube wall of the water inlet pipe is integrally formed with the cup wall of the water cup, and the thickness of the connection between the water inlet pipe and the water cup is equal to the thickness of the tube wall of the water inlet pipe.

[0011] As a preferred solution of the water channel structure of the utility model, the water cup is provided with a material reduction groove on the side facing away from the water inlet pipe, and the area where the material reduction groove is located is the integrally formed connection area between the water inlet pipe and the water cup.

[0012] As a preferred solution of the water channel structure of the utility model, the water diversion valve further comprises a water diversion valve cover, and the water diversion valve cover is detachably connected to the water diversion valve body via a snap-on structure.

[0013] As a preferred solution of the water channel structure of the utility model, the clamping structure includes a clamping protrusion and a clamping groove, at least two of the clamping protrusions are arranged at intervals in the circumferential direction on one of the water diversion valve body and the water diversion valve cover, and the other of the water diversion valve body and the water diversion valve cover is provided with the clamping grooves corresponding to the at least two clamping protrusions one by one, and the clamping protrusions can be slidably clamped in the clamping grooves.

[0014] As a preferred solution of the water channel structure of the utility model, the snap-fit ​​protrusion extends in an arc shape along the circumferential direction of the water diversion valve body, the length of the arc where the snap-fit ​​protrusion is located is L1, the circumference of the valve cavity opening of the water diversion valve body is L2, and L1≥L2 / 3.

[0015] As a preferred solution of the water channel structure of the utility model, a seal is sandwiched between the water diversion valve body and the water diversion valve cover, and a plurality of stop ribs are protruded at intervals along the circumferential direction at the valve cavity opening of the water diversion valve body, and the stop ribs are used to locate the installation position of the seal.

[0016] As a preferred solution of the water channel structure of the utility model, the water channel structure also includes a water pipe, a fixing seat and a connecting pipe. The fixing seat is installed and fixed to the water cup and is opposite to the water diversion port. The connecting pipe is installed and fixed to the inner tank of the dishwasher and is used to be connected to the spray arm of the dishwasher. One end of the water pipe is plugged into the fixing seat, and the other end of the water pipe is plugged into the connecting pipe.

[0017] As a preferred solution of the water channel structure of the utility model, the water pipe includes a first pipe, a second pipe and a third pipe which are bent and connected in sequence, the first pipe is plugged into the fixing seat, the third pipe is plugged into the connecting pipe, and the axis of the first pipe is inclined relative to the plane where the water cup is located in the direction away from the water cup.

[0018] On the other hand, a dishwasher is provided, comprising a housing, an inner tank and the water channel structure as described above, wherein the inner tank is arranged in the housing, and the water channel structure is arranged in the inner tank.

[0019] The beneficial effects of the utility model are:

[0020] The water channel structure and dishwasher provided by the utility model integrate the water diverter valve body of the water diverter valve with the cup wall of the water cup, so that the water diverter valve body and the cup wall of the water cup can share some materials, reduce the total thickness of the connection between the water diverter valve body and the water cup, thereby reducing the overall volume of the water cup and the water diverter valve body, reducing the installation space required for the water cup and the water diverter valve, and meeting the use requirements of dishwashers with limited bottom space. At the same time, the processing method of integrating the water diverter valve body and the water cup is reliable, and there is no need to assemble the water diverter valve body and the water cup in the later stage, avoiding the need to tighten screws, simplifying the assembly process, and improving the assembly efficiency of the dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the waterway structure provided by a specific embodiment of the utility model;

[0023] Figure 2 It is a first cross-sectional view of the waterway structure provided by a specific embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of a water cup and a water diversion valve body provided in a specific embodiment of the utility model;

[0025] Figure 4 It is a cross-sectional view of a water cup and a water diversion valve body provided in a specific embodiment of the utility model;

[0026] Figure 5 It is a second cross-sectional view of the waterway structure provided by the specific implementation mode of the utility model;

[0027] Figure 6 It is a top view of a water cup and a water diversion valve provided in a specific embodiment of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the water diversion valve cover provided by a specific embodiment of the utility model;

[0029] Figure 8 It is a bottom view of a water cup and a water diversion valve body provided in a specific embodiment of the utility model;

[0030] Fig. 9 It is a bottom view of a water cup and a water diversion valve provided in a specific implementation manner of the utility model.

[0031] In the figure:

[0032] 1-water cup; 2-water diversion valve; 3-water pipe; 4-fixed seat; 5-connecting pipe;

[0033] 11-water outlet; 12-reducing tank; 13-washing pump;

[0034] 21-water diversion valve body; 22-water diversion valve cover; 23-driving motor;

[0035] 211-water inlet pipe; 2111-common connecting wall; 212-clamping convex edge; 213-stop rib;

[0036] 221-L-shaped hook; 2211-clip groove;

[0037] 31-first tube; 32-second tube; 33-third tube;

[0038] 51-Snap buckle. DETAILED DESCRIPTION

[0039] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1 and Figure 2 As shown, this embodiment provides a water channel structure, which can reduce the space required for installing the water cup 1 and the water diverter valve 2, simplify the installation steps of the water diverter valve 2, and improve the assembly efficiency of the dishwasher. The water channel structure includes a water cup 1 and a water diverter valve 2.

[0043] The water cup 1 is fixed to the bottom of the inner tank of the dishwasher. Figure 1 and Figure 6 The water cup 1 is provided with a water outlet 11, see Figure 2 , Figure 3 and Figure 4 The water diversion valve 2 includes a water diversion valve body 21 , which is integrally formed with the cup wall of the water cup 1 , and a valve cavity of the water diversion valve body 21 is connected to the water diversion port 11 .

[0044] The water channel structure provided in this embodiment is processed by forming the water diverter valve body 21 of the water diverter valve 2 into an integral part with the cup wall of the water cup 1, so that the water diverter valve body 21 and the cup wall of the water cup 1 can share some materials, reducing the total thickness of the connection between the water diverter valve body 21 and the water cup 1, thereby reducing the overall volume of the water cup 1 and the water diverter valve body 21, reducing the installation space required for the water cup 1 and the water diverter valve 2, meeting the use requirements of the dishwasher with limited bottom space, and solving the problem that the existing water cup 1 and the water diverter valve 2 are limited in installation due to their large size after assembly. At the same time, the processing method of forming the water diverter valve body 21 into an integral part with the water cup 1 is reliable, and there is no need to assemble the water diverter valve body 21 and the water cup 1 at a later stage, which simplifies the assembly process and can improve the assembly efficiency of the dishwasher.

[0045] Optionally, see Figure 3 and Figure 4 The water diversion valve body 21 is provided with a water inlet pipe 211, which is connected to the valve cavity of the water diversion valve body 21, and the pipe wall of the water inlet pipe 211 is integrally formed with the cup wall of the water cup 1, and the thickness of the connection between the water inlet pipe 211 and the water cup 1 is equal to the pipe wall thickness of the water inlet pipe 211. That is, the water inlet pipe 211 and the water cup 1 share the same wall thickness at the connection between the two. Figure 4 As shown, this position is defined as a common connecting wall 2111 , and the thickness of the common connecting wall 2111 is consistent with the wall thickness of the water inlet pipe 211 .

[0046] In the prior art, since the water diverter valve 2 and the water cup 1 are designed as separate parts, and the water inlet pipe 211 needs to have a certain wall thickness and aperture size, after the water diverter valve 2 is installed on the water cup 1, the overall thickness of the two at the water inlet pipe 211 is relatively large, and the space required for installation is relatively large. In this embodiment, the water inlet pipe 211 and the cup wall of the water cup 1 are designed to be integrally formed, and the thickness of the connection between the water inlet pipe 211 and the cup wall of the water cup 1 (the shared connecting wall 2111) is equal to the thickness of the wall of the water inlet pipe 211, which not only ensures the consistency of the wall thickness of the water inlet pipe 211 and is convenient for processing, but also reduces the overall height size of the water diverter valve body 21 and the water cup 1, and reduces the installation space required for the water diverter valve 2 and the water cup 1.

[0047] Optionally, see Figure 4 , Figure 5 and Figure 6 , the water cup 1 is provided with a material reduction groove 12 on the side facing away from the water inlet pipe 211, and the area where the material reduction groove 12 is located is the connection area where the water inlet pipe 211 and the water cup 1 are integrally formed. That is, by designing the material reduction groove 12 on the side of the water cup 1 facing away from the water inlet pipe 211, the thickness of the common connection wall 2111 is reduced, so that the thickness of the common connection wall 2111 is the same as the thickness of the wall of the water inlet pipe 211. In this embodiment, the water cup 1 and the water diversion valve body 21 are integrally formed plastic parts. The above design method can simplify the molding process, make it easier to manufacture the molding molds of the water cup 1 and the water diversion valve body 21, and at the same time ensure that the wall thickness of the plastic part after molding is uniform, thereby improving the overall structural strength of the water cup 1 and the water diversion valve body 21.

[0048] In this embodiment, refer to Figure 1 and Figure 2 The water cup 1 is connected with a washing pump 13, which is used to pass the water collected in the water cup 1 into the valve cavity of the water distribution valve body 21 through the water inlet pipe 211, and then distribute it to each spray arm through the water distribution port 11.

[0049] Optionally, see Figure 2 , Figure 5 and Figure 7 The water diverter valve 2 further includes a water diverter valve cover 22, which is detachably connected to the water diverter valve body 21 through a snap-fit ​​structure. The water diverter valve cover 22 and the water diverter valve body 21 are assembled by snap-fitting, without the need for additional fastening operations, and the disassembly and assembly efficiency is higher, and the connection is reliable.

[0050] Optionally, a sealing member is disposed between the water diversion valve body 21 and the water diversion valve cover 22. Figure 8The valve cavity opening of the water diverter valve body 21 is provided with a plurality of stop ribs 213 at intervals along the circumferential direction, and the stop ribs 213 are used to locate the installation position of the seal. The setting of the stop ribs 213 can, on the one hand, play a blocking and supporting role for the seal, preventing the seal from falling into the valve cavity of the water diverter valve body 21 during the assembly process of the water diverter valve cover 22 and the water diverter valve body 21, thereby ensuring the sealing effect of the seal. On the other hand, the plurality of stop ribs 213 can increase the structural strength of the water diverter valve body 21, and prevent the valve cavity opening position of the water diverter valve body 21 from being deformed.

[0051] Optionally, the snap-fitting structure includes a snap-fitting protrusion 212 and a snap-fitting groove 2211, and at least two snap-fitting protrusions 212 are arranged at intervals in the circumferential direction on one of the water diversion valve body 21 and the water diversion valve cover 22, and a snap-fitting groove 2211 corresponding to the at least two snap-fitting protrusions 212 is arranged on the other of the water diversion valve body 21 and the water diversion valve cover 22, and the snap-fitting protrusion 212 can be slidably clamped in the snap-fitting groove 2211.

[0052] In this embodiment, Figure 4 and Figure 8 As shown, the water diversion valve body 21 is provided with two above-mentioned clamping protrusions 212 at intervals. Figure 7 As shown, two L-shaped hooks 221 are arranged at intervals on the water diverter valve cover 22, and the above-mentioned snap-in groove 2211 is formed between the L-shaped hooks 221 and the water diverter valve cover 22. One end of the snap-in groove 2211 is in an open state, and the other end is in a closed state, and the snap-in groove 2211 and the snap-in convex edge 212 both extend in an arc shape along the circumferential direction. When installing the water diverter valve cover 22, align the notch of the snap-in groove 2211 with the snap-in convex edge 212 and then rotate the water diverter valve cover 22, so that the snap-in convex edge 212 slides along the circumferential direction and snaps into the snap-in groove 2211. When the snap-in convex edge 212 slides to abut against the closed end of the snap-in groove 2211, it indicates that the snap-in convex edge 212 and the snap-in groove 2211 are snapped into place, and the snap-in convex edge 212 and the snap-in groove 2211 are interference fit, and the water diverter valve cover 22 is securely installed with the water diverter valve body 21, as shown in FIG. Fig. 9 shown.

[0053] For example, Figure 7 As shown, the two L-shaped hooks 221 (i.e., the two engaging grooves 2211) on the water diversion valve cover 22 are symmetrically arranged along the circumferential direction. Figure 8 As shown, the two snap-fitting protrusions 212 on the water diverter valve body 21 are symmetrically arranged along the circumferential direction, so as to ensure that the water diverter valve cover 22 and the water diverter valve body 21 are evenly stressed after being assembled, prevent the seal from being displaced, and ensure the sealing of the connection between the water diverter valve cover 22 and the water diverter valve body 21.

[0054] Further, see Figure 8 One end of the snap-in protrusion 212 that snaps into the snap-in groove 2211 is provided with a guiding inclined surface, which is more conducive to the snap-in protrusion 212 being smoothly snapped into the snap-in groove 2211.

[0055] In other embodiments, the aforementioned clamping groove 2211 may also be provided on the water diversion valve body 21 , and the aforementioned clamping protrusion 212 may be provided on the water diversion valve cover 22 .

[0056] In this embodiment, the length of the clamping protrusion 212 in the circumferential direction of the water diversion valve body 21 is defined as L1, the circumference of the valve cavity opening of the water diversion valve body 21 is defined as L2, and L1 ≥ L2 / 3. This size design can ensure that there is enough connection area between the water diversion valve cover 22 and the water diversion valve body 21 to ensure a stable connection between the two.

[0057] Further, see Figure 2 and Figure 5 The water diversion valve 2 also includes a driving motor 23, which is used to drive the water diversion valve plate in the water diversion valve body 21 to rotate to achieve the water diversion function.

[0058] Optionally, see Figure 1 and Figure 2 The waterway structure also includes a water pipe 3, a fixing seat 4 and a connecting pipe 5. The fixing seat 4 is installed and fixed on the water cup 1 and is opposite to the water outlet 11. The connecting pipe 5 is installed and fixed on the inner tank of the dishwasher and is used to connect with the spray arm of the dishwasher. One end of the water pipe 3 is plugged into the fixing seat 4, and the other end of the water pipe 3 is plugged into the connecting pipe 5. The fixing seat 4 is used to realize the connection and fixation between the water pipe 3 and the water cup 1, so that the water pipe 3 is connected with the water outlet 11. Under the action of the washing pump 13, the washing water in the water cup 1 is transported to the spray arm again through the water outlet valve 2, the water pipe 3 and the connecting pipe 5 in sequence to realize water circulation. The water pipe 3 is connected with the fixing seat 4 and the connecting pipe 5 by plugging, which is more convenient for disassembly and assembly, and convenient for later inspection and maintenance.

[0059] For example, Figure 1 and Figure 2 As shown, a first plug-in elbow is provided on the fixing seat 4, a second plug-in elbow is provided on the connecting pipe 5, one end of the water pipe 3 is inserted into the first plug-in elbow, and the other end is inserted into the second plug-in elbow.

[0060] Furthermore, if Figure 1 As shown, a buckle 51 is provided at the connection between the connecting pipe 5 and the water pipe 3 , and the connecting pipe 5 is fixed to the inner tank of the dishwasher through the buckle 51 .

[0061] In the prior art, when the water diverter valve 2 is switched, part of the entrance of the water pipe 3 leading to the spray arm will be blocked, and only the water pipe 3 that currently needs to be connected to the spray arm will remain conductive. However, when switching, the water in the water pipe 3 may be blocked before it has completely flowed out. This will result in water remaining in at least one water pipe 3 at the end of the washing program, and the remaining water will flow out of the spray arm. If the spray arm is touched during the process of taking tableware, the water in the spray arm will drip onto the clean tableware, causing secondary contamination of the tableware.

[0062] To solve the above problems, in this embodiment, Figure 1 and Figure 2 As shown, the water pipe 3 includes a first pipe 31, a second pipe 32 and a third pipe 33 which are bent and connected in sequence, the first pipe 31 is plugged into the fixing seat 4, the third pipe 33 is plugged into the connecting pipe 5, and the axis of the first pipe 31 is tilted relative to the plane where the water cup 1 is located in the direction away from the water cup 1. In this way, the water remaining in the water pipe 3 can flow out quickly, preventing the residual water from dripping onto the washed tableware and avoiding secondary contamination of the tableware.

[0063] See also Figure 2 Assuming that the inclination angle of the first pipe 31 is α, the value range of α is 3° to 10°. This angle range can make the water in the water pipe 3 automatically flow back, avoid residual water in the water pipe 3, and prevent the spray arm from dripping after the washing program ends.

[0064] Furthermore, before the washing program of the dishwasher ends, the water diverter valve plate of the water diverter valve 2 is controlled by the driving motor 23 to continue rotating for one cycle, and the water diverter valve plate stays at the opening leading to each water pipe 3 for a preset time (such as 30 seconds). This ensures that the water in the water pipes 3 leading to each spray arm is drained clean, avoiding residual water in the water pipes 3.

[0065] This embodiment also provides a dishwasher, including a box body, an inner tank and a water channel structure as described above, wherein the inner tank is arranged in the box body, and the water channel structure is arranged in the inner tank. In a dishwasher adopting this water channel structure, since the water diversion valve body 21 of the water diversion valve 2 is integrally formed with the cup wall of the water cup 1, the water diversion valve body 21 and the cup wall of the water cup 1 can share some materials, reducing the total thickness of the connection between the water diversion valve body 21 and the water cup 1, thereby reducing the overall volume of the water cup 1 and the water diversion valve body 21, reducing the installation space required for the water cup 1 and the water diversion valve 2, meeting the use requirements of a dishwasher with limited bottom space, and solving the problem that the existing water cup 1 and the water diversion valve 2 are limited in installation due to their large size after assembly. At the same time, the processing method of integrally forming the water diversion valve body 21 and the water cup 1 is reliable in connection, and there is no need to assemble the water diversion valve body 21 and the water cup 1 in the later stage, which simplifies the assembly process and can improve the assembly efficiency of the dishwasher.

[0066] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. Waterway structure, characterized in that: include: A water cup (1) is installed at the bottom of the inner tank of the dishwasher, and the water cup (1) is provided with a water outlet (11); The water diversion valve (2) comprises a water diversion valve body (21), wherein the water diversion valve body (21) is integrally formed with the cup wall of the water cup (1), and the valve cavity of the water diversion valve body (21) is connected to the water diversion port (11).

2. The waterway structure according to claim 1, characterized in that: The water diversion valve body (21) is provided with a water inlet pipe (211), the water inlet pipe (211) is communicated with the valve cavity of the water diversion valve body (21), the pipe wall of the water inlet pipe (211) is integrally formed with the cup wall of the water cup (1), and the thickness of the integrally formed connection between the water inlet pipe (211) and the water cup (1) is equal to the thickness of the pipe wall of the water inlet pipe (211).

3. The waterway structure according to claim 2, characterized in that: The water cup (1) is provided with a material reduction groove (12) on a side facing away from the water inlet pipe (211), and the area where the material reduction groove (12) is located is the integrally formed connection area between the water inlet pipe (211) and the water cup (1).

4. The waterway structure according to claim 1, characterized in that: The water diversion valve (2) further comprises a water diversion valve cover (22), and the water diversion valve cover (22) is detachably connected to the water diversion valve body (21) via a clamping structure.

5. The waterway structure according to claim 4, characterized in that: The clamping structure comprises a clamping protrusion (212) and a clamping groove (2211); at least two clamping protrusions (212) are arranged at intervals along the circumferential direction on one of the water diversion valve body (21) and the water diversion valve cover (22); the clamping groove (2211) corresponding to the at least two clamping protrusions (212) is arranged on the other of the water diversion valve body (21) and the water diversion valve cover (22); and the clamping protrusion (212) can be slidably clamped in the clamping groove (2211).

6. The waterway structure according to claim 5, characterized in that: The clamping protrusion (212) extends in an arc shape along the circumferential direction of the water diversion valve body (21), the length of the arc where the clamping protrusion (212) is located is L1, the circumference of the valve cavity opening of the water diversion valve body (21) is L2, and L1≥L2 / 3.

7. The waterway structure according to claim 4, characterized in that: A sealing member is sandwiched between the water diversion valve body (21) and the water diversion valve cover (22); a plurality of stop ribs (213) are protruded at intervals along the circumferential direction at the valve cavity opening of the water diversion valve body (21); the stop ribs (213) are used to locate the installation position of the sealing member.

8. The waterway structure according to claim 1, characterized in that: The water channel structure further comprises a water pipe (3), a fixing seat (4) and a connecting pipe (5); the fixing seat (4) is mounted and fixed on the water cup (1) and is opposite to the water outlet (11); the connecting pipe (5) is mounted and fixed on the inner tank of the dishwasher and is used to be connected to the spray arm of the dishwasher; one end of the water pipe (3) is plugged into the fixing seat (4), and the other end of the water pipe (3) is plugged into the connecting pipe (5).

9. The waterway structure according to claim 8, characterized in that: The water pipe (3) comprises a first pipe (31), a second pipe (32) and a third pipe (33) which are bent and connected in sequence, the first pipe (31) is plugged into the fixing seat (4), the third pipe (33) is plugged into the connecting pipe (5), and the axis of the first pipe (31) is arranged to be inclined in a direction away from the water cup (1) relative to the plane where the water cup (1) is located.

10. A dishwasher, characterized in that It comprises a box body, an inner liner and a water channel structure as described in any one of claims 1 to 9, wherein the inner liner is arranged in the box body, and the water channel structure is arranged in the inner liner.

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