Dish-washing machine spraying waterway system and dish-washing machine

Abstract

The invention discloses a dish-washing machine spraying waterway system and a dish-washing machine, and the dish-washing machine spraying waterway system comprises an inner container provided with a washing cavity; the water cup is mounted at the bottom of the inner container and is communicated with the washing cavity; the cup lifting filter screen assembly is rotatably mounted in the water cup; the lower spraying arm comprises a spraying arm body and a water conveying pipe, the spraying arm body is located in the washing cavity, one end of the water conveying pipe is connected and communicated with the spraying arm body, the other end of the water conveying pipe penetrates through the cup lifting filter screen assembly and is rigidly connected with the cup lifting filter screen assembly, and the water conveying pipe is used for being connected into a water supply pipeline so as to supply water to the lower spraying arm. According to the technical scheme, the spraying and residue collecting effects of the lower spraying arm of the dish washing machine can be improved, and meanwhile the lifting cup filter screen assembly achieves the self-cleaning effect.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a dishwasher spray water channel system and a dishwasher. Background Art

[0002] In the related art, a water cup is arranged at the bottom of the inner tank of the dishwasher, a cup-lifting filter assembly is fixed in the water cup, a spray arm is arranged in the washing chamber of the inner tank, spraying and flushing is carried out into the washing chamber through the spray arm, and food residues are filtered through the cup-lifting filter assembly. The lower spray arm of the existing dishwasher is usually arranged on the side of the water cup, which may cause a dead angle in the spray area during the washing process, and cannot achieve a better spraying and residue collection effect; and the cup-lifting filter assembly cannot achieve a self-cleaning effect. Summary of the invention

[0003] The main purpose of the present invention is to provide a dishwasher spray water system, which aims to improve the spraying and residue collection effects of the lower spray arm of the dishwasher, and at the same time enable the cup filter assembly to achieve a self-cleaning effect.

[0004] To achieve the above-mentioned purpose, the dishwasher spray water system proposed in the present invention comprises:

[0005] The inner tank is provided with a washing chamber;

[0006] A water cup, mounted on the bottom of the inner tank and connected to the washing chamber;

[0007] A cup filter assembly is rotatably mounted in the water cup; and

[0008] The lower spray arm includes a spray arm body and a water pipe. The spray arm body is located in the washing chamber. One end of the water pipe is connected to and communicates with the spray arm body, and the other end passes through the cup lifting filter assembly and is rigidly connected to the cup lifting filter assembly. The water pipe is used to access a water supply pipeline to supply water to the lower spray arm.

[0009] In one embodiment, the cup-lifting filter assembly is centrally disposed in the water cup, and the water delivery pipe passes through the cup-lifting filter assembly centrally.

[0010] In one embodiment, a connecting pipe is provided at the bottom of the water cup, and the connecting pipe has a first port connected to the water cup and a second port connected to the water supply pipeline. An end of the water supply pipe away from the spray arm body is connected to the connecting pipe via the first port.

[0011] In one of the embodiments, an oil seal is provided at the first port, and the oil seal is used to seal and connect the matching parts of the water cup, the water pipe and the connecting pipe.

[0012] In one of the embodiments, the dishwasher spray water system further includes a driving mechanism, and the driving mechanism is used to drive one of the lower spray arm and the cup lifting filter assembly to rotate, so as to drive the other to rotate together.

[0013] In one embodiment, the driving mechanism includes a driving motor, a transmission member, a first magnetic member and a second magnetic member. The driving motor is drivingly connected to the transmission member to drive the transmission member to rotate. The transmission member is located outside the water cup. The first magnetic member is arranged on the transmission member. The second magnetic member is arranged on the cup lifting filter assembly. The relative positions of the first magnetic member and the second magnetic member have opposite magnetic poles.

[0014] In one embodiment, a connecting tube is provided at the bottom of the water cup, and the transmission member is rotatably sleeved on the periphery of the connecting tube. The transmission member is opposite to the bottom of the water cup and is arranged at an interval. The first magnetic member is arranged at the top of the transmission member, and the second magnetic member is arranged at the bottom of the cup lifting filter assembly.

[0015] In one embodiment, the transmission member is a transmission gear, and the output end of the drive motor is provided with a drive gear meshing with the transmission gear.

[0016] In one embodiment, the water cup is provided with a water inlet and a water outlet, the water supply pipeline includes a washing pump, a water diversion valve and a first water distribution pipe, the water diversion valve is provided with a water inlet and a first water diversion port, the water inlet end of the washing pump is connected with the water outlet through a first water pipe, the water outlet end of the washing pump is connected with the water inlet through a second water pipe, and the first water distribution pipe connects the first water diversion port with the water supply pipe.

[0017] In one embodiment, the dishwasher spray water system also includes a middle spray arm and an upper spray arm, and the upper spray arm, the middle spray arm and the lower spray arm are arranged in the washing chamber from top to bottom, and the water diversion valve is also provided with a second water diversion port and a third water diversion port, the second water diversion port is connected to the middle spray arm through a second water distribution pipe, and the third water diversion port is connected to the upper spray arm through a third water distribution pipe.

[0018] In one of the embodiments, a branch is provided in the valve cavity of the water diversion valve, and the branch connects the water inlet with the first water diversion port.

[0019] In one embodiment, a switching mechanism is provided in the valve cavity of the water diverter valve, and the switching mechanism is used to switch the water path state of the water diverter valve so that the water diverter valve can arbitrarily select to supply water to at least one of the lower spray arm, the middle spray arm and the upper spray arm.

[0020] The present invention also provides a dishwasher, comprising the dishwasher spray water system as described above.

[0021] The technical solution of the present invention supplies water to the lower spray arm through the water supply pipe during the washing process, and the tableware in the washing chamber can be sprayed and rinsed through the lower spray arm. Since the lower spray arm is arranged in the water cup, compared with the traditional technology in which the lower spray arm is arranged outside the water cup, the arrangement position of the lower spray arm of this solution is more central, so that the spraying area of ​​the lower spray arm is more reasonable, and there is no dead angle in the spraying area, which can achieve better spraying effect and residue collection effect. In addition, the cup-lifting filter assembly is rotatably connected to the water cup, and the lower spray arm is rigidly connected to the cup-lifting filter assembly through a water pipe. During the washing process, as long as one of the cup-lifting filter assembly and the lower spray arm rotates under the action of an external force (such as water flow drive or electric drive), the other can be driven to rotate. Compared with the traditional technology in which the cup-lifting filter assembly and the water cup are fixedly connected by a buckle and cannot be moved or rotated during the washing process, the cup-lifting filter assembly of this scheme can rotate relative to the water cup during the washing process, so that the water flow can rinse different circumferential positions of the cup-lifting filter assembly, so that the circumferential surface of the cup-lifting filter assembly can be cleaned in all directions, thereby achieving a self-cleaning effect of the cup-lifting filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a spray water system for a dishwasher of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the dishwasher spray water system in working state;

[0025] Figure 3 It is a structural schematic diagram of another embodiment of the dishwasher spray water system of the present invention.

[0026] Description of Figure Numbers:

[0027]

[0028]

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The invention provides a spray water channel system for a dishwasher.

[0034] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, the spray water system of the dishwasher includes an inner tank 10, a water cup 20, a cup filter assembly 30 and a lower spray arm 40. The inner tank 10 is provided with a washing chamber 101; the water cup 20 is installed at the bottom of the inner tank 10 and communicates with the washing chamber 101; the cup filter assembly 30 is rotatably installed in the water cup 20; the lower spray arm 40 includes a spray arm body 41 and a water pipe 42, the spray arm body 41 is located in the washing chamber 101, one end of the water pipe 42 is connected and communicated with the spray arm body 41, and the other end passes through the cup filter assembly 30 and is rigidly connected to the cup filter assembly 30, and the water pipe 42 is used to access the water supply pipeline to supply water to the lower spray arm 40.

[0035] Specifically, a washing chamber 101 is formed inside the inner tank 10. The washing chamber 101 can be designed as a square chamber, a cylindrical chamber or a chamber of other shapes as required. A bowl basket or a shelf for carrying tableware can be placed in the washing chamber 101. The water cup 20 is installed at the bottom of the inner tank 10 through the assembly surface 21. The mouth of the water cup 20 is connected to the washing chamber 101. The cup filter assembly 30 can be rotatably installed in the water cup 20 through a bracket. The cup filter assembly 30 can specifically include a hollow cup and a cylindrical filter arranged on the periphery of the cup. The lower spray arm 40 includes a spray arm body 41 and a water pipe 42. The spray arm body 41 can be arranged in a long strip extending in the horizontal direction. The spray arm body 41 is provided with a plurality of spray holes. The water pipe 42 extends vertically downward from the middle position of the spray arm body 41. The water pipe 42 passes through the cup filter assembly 30 and extends into the water cup 20, so that the lower spray arm 40 is generally arranged in the middle position of the water cup 20. The lower spray arm 40 is rigidly connected to the cup filter assembly 30 through the water pipe 42, so that torque can be transmitted between the lower spray arm 40 and the cup filter assembly 30. When one of the lower spray arm 40 and the cup filter assembly 30 rotates under the action of an external force (for example, it can be driven by water flow or electric drive), the other can be driven to rotate together. For example, the lower spray arm 40 can be driven to rotate by water flow drive or electric drive, and then the cup filter assembly 30 is driven to rotate by the lower spray arm 40. For another example, the cup filter assembly 30 can be driven to rotate by water flow or electric drive, and then the cup filter assembly 30 drives the lower spray arm 40 to rotate. There are many ways to rigidly connect the water pipe 42 and the cup filter assembly 30, such as welding, fastener connection, snap connection or keyway connection, as long as the torque transmission between the two can be achieved, and no specific limitation is made here. The water pipe 42 is used to connect to the water supply pipeline. During the washing process, the water flow in the water supply pipeline is transported to the spray arm body 41 through the water pipe 42, and then sprayed through the spray hole on the spray arm body 41 to spray and rinse the tableware in the washing chamber 101. After spraying and rinsing, the spray liquid with food residues is collected at the bottom of the inner tank 10 and flows into the cup filter assembly 30. The food residues can be filtered through the cup filter assembly 30, and then flow into the water cup 20. After washing, it can be discharged through the drainage pump 90 on the water cup 20.

[0036] The technical solution of the present invention supplies water to the lower spray arm 40 through the water supply pipeline during the washing process, and the tableware in the washing chamber 101 can be sprayed and rinsed through the lower spray arm 40. Since the lower spray arm 40 is arranged in the water cup 20, compared with the conventional technology in which the lower spray arm 40 is arranged outside the water cup 20, the arrangement position of the lower spray arm 40 of the present solution is more centered, so that the spraying area of ​​the lower spray arm 40 is more reasonable, and there is no dead angle in the spraying area, which can achieve better spraying effect and residue collection effect. In addition, the cup-lifting filter assembly 30 is rotatably connected to the water cup 20, and the lower spray arm 40 is rigidly connected to the cup-lifting filter assembly 30 through the water pipe 42. During the washing process, as long as one of the cup-lifting filter assembly 30 and the lower spray arm 40 rotates under the action of an external force (such as water flow drive or electric drive), the other can be driven to rotate. Compared with the traditional technology in which the cup-lifting filter assembly 30 and the water cup 20 are fixedly connected by buckles and cannot be moved or rotated during the washing process, the cup-lifting filter assembly 30 of this solution can rotate relative to the water cup 20 during the washing process, so that the water flow can rinse different positions of the cup-lifting filter assembly 30 in the circumferential direction, so that the circumferential surface of the cup-lifting filter assembly 30 can be cleaned in all directions, thereby achieving a self-cleaning effect of the cup-lifting filter assembly 30.

[0037] In one embodiment, the cup filter assembly 30 is centrally arranged in the water cup 20, and the water pipe 42 centrally passes through the cup filter assembly 30. Specifically, in this embodiment, the axes of the water cup 20, the cup filter assembly 30, and the water pipe 42 coincide or substantially coincide, so that the lower spray arm 40 is centrally arranged relative to the water cup 20 and the cup filter assembly 30, so that the lower spray arm 40 is more centrally arranged, which is conducive to further eliminating spray dead angles, thereby achieving better spraying effect and slag collection effect.

[0038] In order to facilitate the connection of the water delivery pipe 42 of the lower spray arm 40 with the water supply pipeline, as shown in FIG. Figure 2 As shown, in one embodiment, a connecting pipe 23 is provided at the bottom of the water cup 20, and the connecting pipe 23 has a first port connected to the water cup 20 and a second port connected to the water supply pipeline. The end of the water supply pipe 42 away from the spray arm body 41 is connected to the connecting pipe 23 via the first port.

[0039] In this embodiment, the connecting pipe 23 can be fixed to the bottom of the water cup 20 by assembly or integral molding. In order to simplify the manufacturing process and ensure the sealing reliability, the connecting pipe 23 is optionally integrally molded at the bottom of the water cup 20. The water pipe 42 of the lower spray arm 40 extends downward to the bottom of the water cup 20 and then is inserted into the connecting pipe 23 through the first port, and the water outlet of the water supply pipeline is connected and communicated with the second port of the connecting pipe 23. In this way, the connection between the water pipe 42 and the water supply pipeline can be achieved through the connecting pipe 23. In addition, the water pipe 42 of the lower spray arm 40 and the water supply pipeline are indirectly connected through the connecting pipe 23, so that the water supply pipeline does not interfere with the rotation of the lower spray arm 40.

[0040] In order to ensure the sealing reliability between the water pipe 42 of the lower spray arm 40 and the water cup 20 and the connecting pipe 23, in one embodiment, an oil seal 24 is provided at the first port, and the oil seal 24 is used to seal and connect the matching parts of the water cup 20, the water pipe 42 and the connecting pipe 23. Specifically, the oil seal 24 can be made of rubber or silicone material with good sealing performance. The oil seal 24 can be sleeved on the periphery of the water pipe 42, the inner peripheral surface of the oil seal 24 is sealed and connected to the outer peripheral surface of the water pipe 42, and the outer peripheral surface of the oil seal 24 is sealed and connected to the matching parts of the water cup 20 and the connecting pipe 23. In this way, the sealing reliability of the matching parts of the water cup 20, the water pipe 42 and the connecting pipe 23 can be effectively improved, the leakage problem can be completely eliminated, and the spray arm pressure of the lower spray arm 40 can also be increased, so as to achieve a better spraying and flushing effect.

[0041] In conventional technology, the lower spray arm 40 of the dishwasher is usually driven by water flow to rotate, and the rotation speed of the spray arm is determined by the water pressure of the washing pump 51. It is impossible to adjust the rotation speed of the spray arm arbitrarily, and it is impossible to achieve forward and reverse rotation of the spray arm and fixed-point washing, and it is impossible to achieve targeted cleaning and reduce washing time. In order to improve the controllability of the rotation of the lower spray arm 40 and improve the washing efficiency, in one embodiment, the dishwasher spray water system also includes a driving mechanism, which is used to drive one of the lower spray arm 40 and the cup lifting filter assembly 30 to rotate, so as to drive the other to rotate together.

[0042] In this embodiment, by driving one of the lower spray arm 40 and the cup lifting filter assembly 30 to rotate through the driving mechanism, the other can be driven to rotate. For example, the lower spray arm 40 can be driven to rotate by the driving mechanism, and the cup lifting filter assembly 30 can be driven to rotate by the lower spray arm 40; for another example, the cup lifting filter assembly 30 can be driven to rotate by the driving mechanism, and the lower spray arm 40 can be driven to rotate by the cup lifting filter assembly 30. Compared with the water flow drive method, the drive mechanism is used to drive the lower spray arm 40 or the cup lifting filter assembly 30 by electric drive, which has higher controllability and can adjust the rotation speed, forward and reverse rotation and fixed-point washing of the lower spray arm 40 at will, so as to achieve targeted cleaning and reduce washing time. For example, the driving mechanism may include a driving motor 61. Taking the driving motor 61 driving the lower spray arm 40 to rotate as an example, when it is necessary to adjust the rotation speed of the lower spray arm 40, it is only necessary to adjust the torque output by the driving motor 61; when it is necessary to adjust the direction of the lower spray arm 40, it is only necessary to control the driving motor 61 to rotate forward or reverse to adjust the direction of the output torque of the driving motor 61; when it is necessary to achieve fixed-point washing, it is only necessary to drive the lower spray arm 40 to rotate to a preset position and keep it fixed by the driving motor 61.

[0043] The driving mechanism and the cup lifting filter assembly 30 or the lower spray arm 40 may be driven by contact or non-contact. Considering the complex environment of the dishwasher spray water system, the driving mechanism and the cup lifting filter assembly 30 or the lower spray arm 40 may be driven by non-contact to eliminate the risk of water leakage.

[0044] Please refer to Figure 1 and Figure 2 In one embodiment, the driving mechanism includes a driving motor 61, a transmission member 62 and a magnetic coupling assembly 63. The driving motor 61 is drivingly connected to the transmission member 62 to drive the transmission member 62 to rotate. The transmission member 62 is located outside the water cup 20. The magnetic coupling assembly 63 includes a first magnetic member 631 and a second magnetic member 632. The first magnetic member 631 is arranged on the transmission member 62, and the second magnetic member 632 is arranged on the cup lifting filter assembly 30. The first magnetic member 631 and the second magnetic member 632 have opposite magnetic poles at opposite positions.

[0045] Specifically, the driving motor 61 and the transmission member 62 can be directly driven or indirectly driven by a transmission assembly (such as a gear assembly or a synchronous pulley assembly, etc.), as long as the driving motor 61 can drive the transmission member 62 to rotate. For example, in this embodiment, the transmission member 62 is a transmission gear, and the output end of the driving motor 61 is provided with a driving gear meshing with the transmission gear. The driving motor 61 drives the driving gear to rotate, and then drives the transmission gear (that is, the transmission member 62) to rotate. Of course, in some embodiments, the transmission member 62 can be a synchronous wheel, and the output end of the driving motor 61 is also provided with a synchronous wheel. The outer ring of the two synchronous wheels is provided with a synchronous belt, and the synchronous wheel is driven by the driving motor 61 to rotate, and then the other synchronous wheel (that is, the transmission member 62) is driven to rotate through the synchronous belt. The transmission member 62 is arranged on the outside of the water cup 20, wherein the transmission member 62 can be specifically arranged on the outside of the bottom surface or the outside of the peripheral surface of the water cup 20. For example, in this embodiment, the transmission member 62 is arranged at the bottom of the water cup 20 and is arranged opposite to the bottom of the cup lifting filter assembly 30. The magnetic coupling assembly 63 includes a first magnetic member 631 and a second magnetic member 632. The first magnetic member 631 is arranged at the top of the transmission member 62, and the second magnetic member 632 is arranged at the bottom of the cup filter assembly 30. The magnetic poles of the first magnetic member 631 and the second magnetic member 632 are opposite to each other. For example, the N pole of the first magnetic member 631 is opposite to the S pole of the second magnetic member 632, and the S pole of the first magnetic member 631 is opposite to the N pole of the second magnetic member 632. The specific number of the magnetic coupling assembly 63 can be set according to actual needs, and can be one group, two groups or more. The first magnetic member 631 and the second magnetic member 632 can be specifically magnets.

[0046] In this embodiment, the driving motor 61 and the transmission member 62 are both arranged on the outside of the water cup 20, the cup lifting filter assembly 30 is arranged in the water cup 20, the transmission member 62 is arranged on the first magnetic member 631, and the cup lifting filter assembly 30 is provided with a second magnetic member 632. The first magnetic member 631 and the second magnetic member 632 have opposite magnetic poles at the opposite parts, so that there is an attraction force between the first magnetic member 631 and the second magnetic member 632. When the driving motor 61 drives the transmission member 62 to rotate, the magnetic resistance between the first magnetic member 631 and the second magnetic member 632 will change. At this time, in order to keep the magnetic resistance unchanged, the second magnetic member 632 will also change, so that the cup lifting filter assembly 30 rotates together with the transmission member 62. Since the cup lifting filter assembly 30 and the lower spray arm 40 are rigidly connected, the lower spray arm 40 also rotates together with the cup lifting filter assembly 30. In this way, during the washing process, the cup lifting filter assembly 30 and the lower spray arm 40 can be driven to rotate together through the driving mechanism, so that the cup lifting filter assembly 30 can achieve a self-cleaning effect, and at the same time, the lower spray arm 40 can achieve functions such as adjustable speed and steering and fixed-point washing, so as to achieve targeted cleaning and reduce washing time. In addition, in this embodiment, the drive motor 61 and the cup lifting filter assembly 30 and the lower spray arm 40 are non-contact drive-coordinated through the magnetic coupling assembly 63, which can completely eliminate the risk of water leakage. In addition, the drive motor 61 and the lower spray arm 40 are non-contact drive-coordinated, and even if the lower spray arm 40 is blocked, it will not cause damage to the drive motor 61, so it will not affect the life of the drive motor 61, which can improve safety, and can be manually intervened and adjusted at any time.

[0047] In one embodiment, a connecting tube 23 is provided at the bottom of the water cup 20, and a transmission member 62 is rotatably sleeved on the outer periphery of the connecting tube 23. The transmission member 62 is opposite to the bottom of the water cup 20 and is arranged at an interval. The first magnetic member 631 is provided at the top of the transmission member 62, and the second magnetic member 632 is provided at the bottom of the cup filter assembly 30.

[0048] In this embodiment, a connecting pipe 23 is provided at the bottom of the water cup 20, and the connecting pipe 23 can be used to install a transmission member 62. The connecting pipe 23 can also be used to connect the water pipe 42 of the lower spray arm 40 with the water supply pipeline, making the overall structure more compact. The transmission member 62 can be specifically arranged in an annular shape. For example, the transmission member 62 can be an annular gear. The transmission member 62 is sleeved on the periphery of the connecting pipe 23. The top surface of the transmission member 62 is opposite to the bottom surface of the water cup 20 and is arranged at intervals. The bottom surface of the cup lifting filter assembly 30 is opposite to the bottom surface of the water cup 20 and is arranged at intervals. The top surface of the transmission member 62 can be provided with one, two or more first magnetic members 631, and the bottom surface of the cup lifting filter assembly 30 can be provided with second magnetic members 632 that match the number of first magnetic members 631.

[0049] Based on the above examples, please refer to Figure 2In one embodiment, the water cup 20 is provided with a water inlet 22 and a water outlet, the water supply pipeline includes a washing pump 51, a water diverter valve 52 and a first water distribution pipe 53, the water diverter valve 52 is provided with a water inlet and a first water diverter, the water inlet end of the washing pump 51 is connected with the water outlet through a first water pipe 54, the water outlet end of the washing pump 51 is connected with the water inlet through a second water pipe 55, and the first water distribution pipe 53 connects the first water diverter with the water supply pipe 42.

[0050] In this embodiment, the water inlet of the first water distribution pipe 53 is connected to the first water outlet of the water distribution valve 52, and the water outlet of the first water distribution pipe 53 can be connected to the water delivery pipe 42 via the connecting pipe 23. The first water distribution pipe 53 can be a rubber hose, which has better flexibility and is convenient for bending and connecting. When the dishwasher is working, water can be poured into the water cup 20 through the water inlet 22, and the water in the water cup 20 is delivered to the washing pump 51 through the first water pipe 54, and then pressurized by the washing pump 51 and delivered to the water distribution valve 52 through the second water pipe 55, and then delivered to the first water distribution pipe 53 through the first water outlet of the water distribution valve 52, and then delivered to the water delivery pipe 42 of the lower spray arm 40 through the first water distribution pipe 53, and finally delivered to the spray arm body 41 through the water delivery pipe 42, and the water is sprayed into the washing chamber 101 of the inner tank 10 through the spray arm to spray and wash the tableware in the washing chamber 101. The water in the washing chamber 101 is filtered by the cup filter assembly 30 and then flows back into the water cup 20, and then is transported to the lower spray arm 40 through the water supply pipeline, so as to achieve cyclic cleaning. In addition, the water cup 20 is also connected to a drain pump 90, and when the washing is completed, the waste water can be discharged through the drain pump 90. It should be noted that the water diverter valve 52 can be integrated and installed on the water cup 20, or the water diverter valve 52 can also be set independently of the water cup 20, so as to serve as a separate functional component to supply water to the pipes of the dishwasher. For example, Figure 1 and Figure 2 As shown, in one embodiment, the water diverter valve 52 is integrated and installed on the side of the water cup 20, and the water diverter valve 52 can be supported and fixed by the water cup 20. Figure 3 As shown, in another embodiment, the water diversion valve 52 is provided on the water cup 20 .

[0051] To further expand the spray area and improve the washing effect, please refer to Figure 3In one embodiment, the spray water system of the dishwasher further includes a middle spray arm 70 and an upper spray arm 80. The upper spray arm 80, the middle spray arm 70 and the lower spray arm 40 are sequentially arranged from top to bottom in the washing chamber 101. The water diversion valve 52 is further provided with a second water diversion port and a third water diversion port. The second water diversion port is connected to the middle spray arm 70 through a second water distribution pipe 56, and the third water diversion port is connected to the upper spray arm 80 through a third water distribution pipe 57. In this way, during the washing process, after the washing pump 51 pumps the water from the water cup 20 to the water diversion valve 52, the water flow can be distributed to the lower spray arm 40, the middle spray arm 70 and the upper spray arm 80 through the water diversion valve 52, so that the lower spray arm 40, the middle spray arm 70 and the upper spray arm 80 can spray and rinse the lower, middle and upper areas in the washing chamber 101 in an all-round and dead-angle manner, thereby achieving a better washing effect.

[0052] In one embodiment, a branch is provided in the valve cavity of the water diverter valve 52, and the branch connects the water inlet with the first water diverter. In this embodiment, the water in the water cup 20 is pressurized by the washing pump 51 and then delivered to the valve cavity of the water diverter valve 52, and is supplied to the lower spray arm 40 through a separate branch for spraying, so that the spray arm pressure of the lower spray arm 40 is greater, thereby achieving a better spraying effect.

[0053] In order to enable the dishwasher to achieve different spray modes, in one embodiment, a switching mechanism is provided in the valve cavity of the water diverter valve 52, and the switching mechanism is used to switch the water path state of the water diverter valve 52 so that the water diverter valve 52 can arbitrarily select to supply water to at least one of the lower spray arm 40, the middle spray arm 70 and the upper spray arm 80.

[0054] Specifically, the switching mechanism may include a paddle disposed in the valve cavity and a driving member for driving the paddle to rotate. For example, when the driving member drives the paddle to rotate to the first position, the water diverter valve 52 may supply water to the lower spray arm 40 alone, thereby realizing a separate spraying mode for the lower spray arm 40; when the driving member drives the paddle to rotate to the second position, the water diverter valve 52 may supply water to the middle spray arm 70 alone, thereby realizing a separate spraying mode for the middle spray arm 70; when the driving member drives the paddle to rotate to the third position, the water diverter valve 52 may supply water to the upper spray arm 80 alone, thereby realizing a separate spraying mode for the upper spray arm 80. In this way, one of the lower spray arm 40, the middle spray arm 70, and the upper spray arm 80 may be controlled to work alone in a targeted manner according to actual needs, thereby realizing a greater spray arm pressure and a better spraying effect. Of course, the switching mechanism can also be used to switch the water path state of the water diverter valve 52, so that the water diverter valve can supply water to any two of the lower spray arm 40, the middle spray arm 70 and the upper spray arm 80 at the same time, so as to realize three different spray modes, namely, the lower spray arm 40 and the middle spray arm 70 spraying mode at the same time, or the lower spray arm 40 and the upper spray arm 80 spraying mode at the same time, or the middle spray arm 70 and the upper spray arm 80 spraying mode at the same time. Of course, the switching mechanism can also be used to switch the water path state of the water diverter valve 52, so that the water diverter valve can supply water to any two of the lower spray arm 40, the middle spray arm 70 and the upper spray arm 80 at the same time, so as to realize the lower spray arm 40, the middle spray arm 70 and the upper spray arm 80 spraying mode at the same time.

[0055] The present invention also proposes a dishwasher, which includes a dishwasher spray water system. The specific structure of the dishwasher spray water system refers to the above-mentioned embodiment. Since this dishwasher adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0056] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dishwasher spray water system, characterized in that: include: The inner tank is provided with a washing chamber; A water cup, mounted on the bottom of the inner tank and connected to the washing chamber; A cup filter assembly is rotatably installed in the water cup; as well as The lower spray arm includes a spray arm body and a water pipe. The spray arm body is located in the washing chamber. One end of the water pipe is connected to and communicates with the spray arm body, and the other end passes through the cup lifting filter assembly and is rigidly connected to the cup lifting filter assembly. The water pipe is used to access a water supply pipeline to supply water to the lower spray arm.

2. The dishwasher spray water system according to claim 1, characterized in that: The cup-lifting filter assembly is centrally arranged in the water cup, and the water delivery pipe passes through the cup-lifting filter assembly centrally.

3. The dishwasher spray water system according to claim 1, characterized in that: A connecting pipe is provided at the bottom of the water cup. The connecting pipe has a first port connected to the water cup and a second port connected to the water supply pipeline. An end of the water pipe away from the spray arm body is connected to the connecting pipe via the first port.

4. The dishwasher spray water system according to claim 3, characterized in that: An oil seal is provided at the first port, and the oil seal is used to seal and connect the matching parts of the water cup, the water pipe and the connecting pipe.

5. The dishwasher spray water system according to claim 1, characterized in that: It also includes a driving mechanism, which is used to drive one of the lower spray arm and the cup lifting filter assembly to rotate, so as to drive the other to rotate together.

6. The dishwasher spray water system according to claim 5, characterized in that: The driving mechanism includes a driving motor, a transmission member, a first magnetic member and a second magnetic member. The driving motor is drivingly connected to the transmission member to drive the transmission member to rotate. The transmission member is located outside the water cup. The first magnetic member is arranged on the transmission member. The second magnetic member is arranged on the cup lifting filter assembly. The first magnetic member and the second magnetic member have opposite magnetic poles at opposite locations.

7. The dishwasher spray water system according to claim 6, characterized in that: A connecting tube is provided at the bottom of the water cup, and the transmission member is rotatably sleeved on the periphery of the connecting tube. The transmission member is opposite to the bottom of the water cup and is arranged at an interval. The first magnetic member is arranged on the top of the transmission member, and the second magnetic member is arranged on the bottom of the cup lifting filter assembly.

8. The dishwasher spray water system according to claim 6, characterized in that: The transmission member is a transmission gear, and the output end of the drive motor is provided with a drive gear meshing with the transmission gear.

9. The dishwasher spray water system according to any one of claims 1 to 8, characterized in that: The water cup is provided with a water inlet and a water outlet, the water supply pipeline includes a washing pump, a water diversion valve and a first water distribution pipe, the water diversion valve is provided with a water inlet and a first water diversion port, the water inlet end of the washing pump is connected with the water outlet through a first water pipe, the water outlet end of the washing pump is connected with the water inlet through a second water pipe, and the first water distribution pipe connects the first water diversion port with the water supply pipe.

10. The dishwasher spray water system according to claim 9, characterized in that: It also includes a middle spray arm and an upper spray arm, and the upper spray arm, the middle spray arm and the lower spray arm are arranged in the washing chamber from top to bottom in sequence. The water diversion valve is also provided with a second water diversion port and a third water diversion port. The second water diversion port is connected to the middle spray arm through a second water distribution pipe, and the third water diversion port is connected to the upper spray arm through a third water distribution pipe.

11. The dishwasher spray water system according to claim 10, characterized in that: A branch is provided in the valve cavity of the water diversion valve, and the branch connects the water inlet with the first water diversion port.

12. The dishwasher spray water system according to claim 10, characterized in that: A switching mechanism is provided in the valve cavity of the water diverter valve, and the switching mechanism is used to switch the water path state of the water diverter valve so that the water diverter valve can arbitrarily select to supply water to at least one of the lower spray arm, the middle spray arm and the upper spray arm.

13. A dishwasher, characterized in that: It comprises the dishwasher spray water circuit system as described in any one of claims 1 to 12.

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