A dishwasher

Abstract

The application discloses a dishwasher, comprising: a washing cavity for containing tableware; a washing pump for conveying washing water in a washing pump cavity into the washing cavity; a heating cavity which is arranged outside the washing pump cavity and is in circumferential communication with the washing pump cavity, and is used for heating washing water flowing therethrough; and a filtering cavity which is arranged outside the heating cavity and is in circumferential communication with the heating cavity. The annularly arranged heating cavity and filtering cavity are beneficial to the backflow of washing water during the washing process, and the backflow of washing water is all through the heating cavity, which is beneficial to increasing the heating efficiency. An annular backflow water channel is formed from the filtering cavity to the washing pump cavity; the washing water entering the washing pump cavity must flow through the heating cavity, so that the washing water reaching the washing pump cavity is heated in a heating state, which is beneficial to improving the heating efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of dishwashers, and particularly relates to a dishwasher. BACKGROUND

[0002] The dishwasher is an equipment for automatically cleaning dishes, chopsticks, plates, bowls, knives and forks, and can be divided into box type and conveying type according to the structure, and is often used in families, restaurants, hotels, and canteens of government offices, etc., so as to reduce the labor intensity, improve the work efficiency, and improve the cleanliness.

[0003] The dishwasher usually mainly comprises a washing device, a washing cavity and a control device, the main function of the washing device is to send water into the washing cavity by pressurizing the washing pump through the motor, and the water is heated in the process of water delivery or is delivered to the heating cavity for heating; in the impeller type dishwasher, the impeller is connected with the rotating shaft of the motor, and in the working process, the motor drives the impeller to rotate at high speed, so that the water in the washing pump cavity is splashed upwards along with the impeller into the washing cavity, so as to clean the dishes; in the working process of the nozzle type dishwasher, the washing device pours water into a heating cavity at the bottom, and the heater heats the water to about 54-60 DEG C in the heating cavity, then the pump pushes the water to the water spray head, and sprays the water to the dishes in the washing cavity, and the pressure nozzle sprays the water to different directions, so as to clean the dishes in the washing cavity.

[0004] At present, the dishwasher produced and sold on the market has a large overall volume of the heater, and is located in the washing cavity or the heating cavity, and the structure of the washing pump and the motor is large in size and occupies a large working space; in order to save space, a technical scheme of integrating the heating function in the washing pump is appeared, but the original flow channel structure is often damaged, thereby causing additional hydraulic loss. Specifically, the washing pump integrated with the heating function in the existing dishwasher usually adopts the heating pipe type heating mode, due to the existence of the heating pipe of the washing pump, the size of the pump cavity is increased, thereby seriously affecting the hydraulic efficiency of the whole pump, and due to the limited heat exchange area of the heating pipe, it is very difficult to increase the heating power in the limited space.

[0005] The above information disclosed in the background of the application is only used to increase the understanding of the background of the application, and therefore, it can include the prior art known by those skilled in the art. SUMMARY

[0006] The present application is directed to the above problems in the prior art, and proposes a dishwasher, which is provided with a heating cavity and a filtering cavity, which is beneficial to the reflux of washing water in the washing process, and the reflux washing water passes through the heating cavity, which is beneficial to increasing the heating efficiency.

[0007] In order to achieve the above application purpose, the present application adopts the following technical scheme:

[0008] A dishwasher characterized in that comprising:

[0009] A washing cavity for accommodating tableware;

[0010] A washing pump for delivering washing water in the washing pump cavity to the washing cavity;

[0011] A heating cavity surrounding the outside of the washing pump cavity and being in circumferential communication with the washing pump cavity for heating the washing water flowing therethrough;

[0012] A filter cavity surrounding the outside of the heating cavity and being in circumferential communication with the heating cavity.

[0013] Further, a planar filter screen for filtering washing water is arranged between the filter cavity and the washing cavity, and a partition plate is arranged between the heating cavity and the washing cavity.

[0014] Further, the partition plate is arranged with a lower outside and a higher inside.

[0015] Further, a plurality of communication flow channels are arranged circumferentially between the filter cavity and the heating cavity.

[0016] Further, the heating disc of the heating cavity is arranged with an annular heating body.

[0017] Further, the heating body is arranged with a higher inside and a lower outside.

[0018] Further, the included angle between the partition plate and the horizontal plane is greater than the included angle between the heating body and the horizontal plane.

[0019] Further, an inner extension extending horizontally inward along the inside of the partition plate is arranged, and the inner extension is fitted to the washing pump.

[0020] Further, an inclined transition extending upward and inward is arranged on the inside of the bottom surface of the filter cavity, a connecting portion extending inward along the inclined transition is arranged, a heating disc is arranged on the bottom surface of the heating cavity, and the outside of the heating disc is sealingly fixed to the connecting portion.

[0021] Further, a plurality of radially arranged interval ribs extending upward are arranged on the inclined transition and the connecting portion, and the interval ribs are used for spacing the communication flow channels.

[0022] Further, the upper end surface of the interval ribs has the same inclined angle as the partition plate, and the interval ribs are used for supporting the partition plate.

[0023] Further, a water outlet is formed on the bottom surface of the washing cavity, the water outlet is communicated with the drain pump cavity, a water flow groove is formed on the bottom surface of the washing cavity and connected with the water outlet, and the depth of the water flow groove gradually increases in the direction close to the water outlet.

[0024] Further, the outer side of the spacing rib extends in the direction of the washing cavity to form an extended flow guide part.

[0025] Further, the planar filter screen and the isolation plate form an integrated isolation filter structure.

[0026] Compared with the prior art, the advantages and positive effects of the present application are as follows: the annular sleeve heating cavity and the filter cavity are arranged, which is beneficial to the reflux of washing water during the washing process, and the reflux washing water all passes through the heating cavity, which is beneficial to increasing the heating efficiency. During the washing process of the dishwasher, the washing impeller rotation causes the washing water in the washing pump cavity to be pumped into the washing cavity by the washing impeller, and then the washing water flows into the filter cavity. Under the action of the washing pump, the washing water in the filter cavity flows through the heating cavity and then reaches the washing pump cavity, forming a washing water path. The annular reflux water path is formed from the filter cavity to the washing pump cavity. The washing water entering the washing pump cavity must flow through the heating cavity, so that the washing water reaching the washing pump cavity is heated in the heating state, which is beneficial to improving the heating efficiency.

[0027] Other features and advantages of the present application will become more apparent after reading the specific embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0029] Figure 1 Structure schematic diagram of an embodiment of the dishwasher proposed in the present application;

[0030] Figure 2 Assembled top view structure schematic diagram; Figure 1

[0031] Assembled top view structure schematic diagram; Figure 3 Sectional view structure schematic diagram in direction A-A; Figure 2

[0032] Sectional view structure schematic diagram in direction A-A; Figure 4 Figure 3 Enlarged schematic diagram of part of the structure;

[0033] Figure 5 Enlarged schematic diagram of part of the structure; Figure 4 ​Enlarged structure schematic diagram of middle heating disc;

[0034] Figure 6 For Figure 1 Schematic diagram of perspective structure of section after assembly;

[0035] Figure 7 For Figure 6 Enlarged schematic diagram of middle part structure;

[0036] Figure 8 For Figure 7 Enlarged structure schematic diagram of middle heating disc;

[0037] Figure 9 For Figure 1 Schematic diagram of part enlarged structure of middle base;

[0038] Figure 10 For Figure 9 Enlarged structure schematic diagram of B area;

[0039] Figure 11 For Figure 1 Enlarged structure schematic diagram of heating disc;

[0040] Figure 12 For Figure 11 Schematic diagram of part enlarged structure of section;

[0041] Figure 13 For Figure 1 Enlarged structure schematic diagram of motor;

[0042] Figure 14 For Figure 13 Schematic diagram of part enlarged structure;

[0043] Figure 15 For Figure 1 Enlarged structure schematic diagram of assembly fixing ring;

[0044] Figure 16 For Figure 15 Enlarged structure schematic diagram of C area;

[0045] Figure 17 For Figure 1 Enlarged structure schematic diagram of assembly bracket;

[0046] Figure 18 For Figure 1 Enlarged structure schematic diagram of isolation filter structure;

[0047] Figure 19 For Figure 18 Front view structure schematic diagram;

[0048] Figure 20 For Figure 1An enlarged structural schematic view of a first sealing gasket;

[0049] Figure 21 For Figure 20 An enlarged structural schematic view of a cross-sectional portion. DETAILED DESCRIPTION

[0050] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0051] In the description of the present application, it should be noted that the terms “upper”, “lower”, “left”, “right” and the like indicate the positional or locational relationship shown in the drawings, and the direction close to the axis of the inner cylinder is “inner”, and vice versa. The terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the features with “first”, “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0052] In the present application, unless otherwise specifically defined and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0053] Referring to Figures 1-21 is an embodiment of the dishwasher proposed by the present application, referring to Figures 3-4As shown in the drawings, a dishwasher comprises a washing cavity 100, a filtering cavity 300, a heating cavity 200, a washing pump cavity 23, a washing water path formed by the washing cavity 100, the filtering cavity 300, the heating cavity 200 and the washing pump cavity 23, and a washing pump 20 arranged on the washing water path. The washing pump 20 has a washing impeller 21 fixed to an upper end of a rotating shaft 12, a washing pump support 22 fixed to a motor housing 11, and the washing pump cavity 23, and a lower end of the washing impeller 21 is located in the washing pump cavity 23. The washing pump 20 is used to deliver washing water in the washing pump cavity 23 to the washing cavity 100. The heating cavity 200 is arranged outside the washing pump cavity 23, and the heating cavity 200 is circumferentially communicated with the washing pump cavity 23, and is used to heat the washing water flowing therethrough. The filtering cavity 300 is arranged outside the heating cavity 200, and the filtering cavity 300 is circumferentially communicated with the heating cavity 200. The filtering cavity 300 and the heating cavity 200 are both annular cavities.

[0054] By arranging the heating cavity 200 and the filtering cavity 300 in a sleeving manner and circumferentially communicating with each other, the backflow of the washing water from the washing pump cavity 23 to the washing cavity 100 during the washing process is facilitated, and the backflow washing water reaches the washing pump cavity 23 after passing through the heating cavity, which is conducive to increasing the heating efficiency. During the washing process of the dishwasher, the rotation of the washing impeller 21 causes the washing water in the washing pump cavity 23 to be pumped by the washing impeller 21 to the washing cavity 100, and then the washing water flows into the filtering cavity 300. Under the action of the washing pump 20, the washing water in the filtering cavity 300 flows from the inner diameter side of the filtering cavity 300 to the outer diameter side of the heating cavity 200 in the circumferential direction at the same time, and then flows from the inner diameter side of the heating cavity 200 to the washing pump cavity 23 in the circumferential direction at the same time, forming a washing water path. The annular backflow water path is formed from the filtering cavity 300 to the washing pump cavity 23. The washing water entering the washing pump cavity 23 must flow through the heating cavity 200, so that the washing water reaching the washing pump cavity 23 is heated in the heating state, which is conducive to improving the heating efficiency.

[0055] As shown in the drawings, Figure 3 , Figure 4 and Figure 18 A planar filter screen 41 for filtering the washing water is arranged between the filtering cavity 300 and the washing cavity 100. The filtering cavity 300 is located below the washing cavity 100, which is conducive to the washing water in the washing cavity 100 flowing into the filtering cavity 300 under the action of gravity. A partition plate 42 is arranged between the heating cavity 200 and the washing cavity 100. The partition plate 42 is used to separate the heating cavity 200 and the washing cavity 100 in the up-down direction. The heating cavity is located below the washing cavity 100. The washing water in the washing cavity 100 cannot directly flow into the heating cavity 200. The washing water in the washing cavity 100 flows into the filtering cavity 300, and the washing water in the filtering cavity 300 flows into the heating cavity 200 in the circumferential direction. It is ensured that the backflow washing water from the washing cavity 100 reaches the filtering cavity 300 after being filtered, and it is ensured that the backflow washing water passes through the heating cavity 200.

[0056] The plane filter screen 41 is horizontally arranged, and the isolation plate 42 is arranged with an outer low and inner high structure. Since the water flow path from the filter cavity 300 to the heating cavity 200 to the washing pump cavity 23 is annular and flows from the outer circumferential side to the inner side, the circumferential size in the flow direction becomes smaller and smaller. The isolation plate 42 is arranged with an outer low and inner high structure, and the height of the isolation plate 42 increases in the direction close to the center, that is, the height of the isolation plate 42 increases in the radial inward direction, which is beneficial to ensure that the volume of the heating cavity 200 does not change greatly in the radial direction, and is beneficial to the smooth flow of the water flow. At the same time, since the isolation plate 42 is arranged with an outer low and inner high structure, the washing water sprayed into the washing cavity 100 and then falling onto the isolation plate 42 can quickly flow to the plane filter screen 41 along the inclined surface, which is beneficial to the backflow of the washing water in the washing cavity 100 to the filter cavity 300. Moreover, the isolation plate 42 is arranged with an outer low and inner high structure, which is beneficial to increasing the structural strength of the isolation plate 42.

[0057] For the arrangement of the heating component of the heating cavity 200, it is preferable to arrange the bottom surface of the heating cavity 200 with a heating disc 30, and the heating disc 30 has an annular heating body 31 arranged with an inner high and outer low structure. The washing water flows over the heating body 31. The heating disc 30 is arranged outside the motor shell 11, so that the heating disc 30 serves as a part of the washing water path, which is beneficial to the simplification of the structure and avoids the arrangement of the water path causing the obstruction of the water flow. Moreover, the heating body 31 is arranged with an inner high and outer low structure, so that when the washing water flows radially inward from the outer side of the heating body 31, it needs to climb upward, which increases the difficulty of the backflow of the washing water and slows down the speed of the water flow flowing through the heating body 31, thereby increasing the time of the water flow flowing through the heating body 31, which is beneficial to improving the heating efficiency of the heating disc 30 on the washing water. Moreover, the washing water will not be left at the heating body 31.

[0058] Since the isolation plate 42 and the heating body 31 are both arranged with an inner high and outer low structure, it is preferable that the angle between the isolation plate 42 and the horizontal plane is greater than the angle between the heating body 31 and the horizontal plane, so that the distance between the heating body 31 and the isolation plate 42 increases in the radial inward direction, that is, the height of the heating cavity 200 increases in the radial inward direction, which is beneficial to the smooth flow of the water flow. If the inclination of the heating body 31 is too large, the climbing speed of the water flow flowing through the heating disc 30 will be too slow, which will reduce the washing efficiency. However, if the inclination angle of the heating body 31 is too small, it will not be able to improve the heating efficiency. It is preferable to arrange the angle between the heating body 31 and the horizontal plane to be 3°-10°, and more preferably, the angle between the heating body 31 and the horizontal plane is 5°-6°. It is preferable to arrange the angle between the isolation plate 4 and the horizontal plane to be 10°-25°, and more preferably, the angle between the isolation plate 4 and the horizontal plane is 15°-20°.

[0059] An inner extension 43 extending horizontally inward along the inner side of the partition plate 42 is assembled to the washing pump support 22 of the washing pump 20. A motor 10 rotating the washing pump 20 is provided, and the motor 10 has a motor shell 11, a stator fixed to the motor shell 11, a rotatable rotor, and a rotating shaft 12 fixed to the rotor. The motor shell 11 and the rotating shaft 12 are coaxially arranged, and the rotating shaft 12 is vertically arranged. A washing impeller 21 is fixed to the upper end of the rotating shaft 12, and a drainage impeller is fixed to the lower end of the rotating shaft 12. The washing pump support 22 is fixed to the motor shell 11.

[0060] Referring to Figure 5 , Figure 9 and Figure 10 , the inner side of the bottom surface of the filtering cavity 300 is provided with an upward and inward extending inclined transition part 93 and a connecting part 94 extending inwardly and bending along the inclined transition part 93, and the outer side of the heating disc 30 is sealingly fixed to the connecting part 94. By providing the inclined transition part 93, the heating cavity 200 is higher than the filtering cavity 300, that is, the water flow from the inner diameter side of the filtering cavity 300 needs to flow upward through the inclined transition part 93 before reaching the filtering cavity 300, that is, only when the washing pump 20 is started, the washing water in the filtering cavity 300 flows inward into the heating cavity 200. In order to facilitate the washing water in the filtering cavity 300 to flow into the heating cavity 200 in the circumferential direction and in the radial direction, a plurality of communication flow channels are provided between the filtering cavity 300 and the heating cavity 200, and the washing water in the filtering cavity 300 flows into the heating cavity 200 through the plurality of communication flow channels, which is beneficial to the radial flow of the water flow. Specifically, a plurality of spacing ribs 95 extending upward are provided on the inclined transition part 93 and the connecting part 94, the spacing ribs 95 are arranged in the radial direction, and the plurality of spacing ribs 95 are arranged in the circumferential direction, the spacing ribs 95 are used to form the communication flow channels, and the communication flow channels are formed by the adjacent two spacing ribs 95, the partition plate, and the inclined transition part 93 and the connecting part 94 at the lower part; the outer side of the spacing rib 95 extends to the washing cavity 300 to form an extended flow guide part 951 for guiding the water flow in the filtering cavity 300 to flow into the communication flow channel. The upper end surface of the spacing rib 95 has the same inclination angle as the partition plate 42, and the spacing rib 95 is used to support the partition plate 42.

[0061] A water outlet is formed on the bottom surface of the washing cavity 300, a cup-shaped filter screen 80 is arranged at the water outlet, the water outlet is communicated with the drainage pump cavity 19, and a water flow groove 301 connected with the water outlet is formed on the bottom surface of the washing cavity 300, and the depth of the water flow groove 301 gradually increases in the direction close to the water outlet; which is beneficial to the washing water in the water flow groove 301 to flow to the water outlet during drainage, and avoids the washing water remaining in the washing cavity 300.

[0062] Preferably, the planar filter screen 41 and the isolation plate 42 are integrated to form the isolation filter structure 40, which covers the middle part of the bottom wall 90 of the inner container, and the isolation filter structure 40 is located in the middle part of the bottom wall 90 of the inner container. Figure 1 Only the base part of the inner container is shown, and the space above the isolation filter structure 40 in the inner container is the washing cavity 100, the space between the isolation filter structure 40 and the heating disc 30 is the heating cavity 200, and the space between the isolation filter structure 40 and the bottom wall 90 is the filter cavity 300.

[0063] Referring to Figures 11-12 For the structure of the heating disc 30, the heating disc 30 has the heating body 31 arranged obliquely, the inner bending part 32 extending downward and inward along the inner side of the heating body 31, and the outer bending part 33 extending downward and outward along the outer side of the heating body 31, wherein the inner bending part 32, the heating body 31, and the outer bending part 33 surround the concave cavity 400, and the heating component 34 is located in the concave cavity 400. By forming the concave cavity 400, a space for arranging the heating component 34 is formed. For example, when water seeps at the joint of the inner side or the outer side of the heating disc 30, the seeped water droplets cannot flow upward along the inner bending part 32 or the outer bending part 33 into the concave cavity 400, which is beneficial to the safety of the heating component 34. Preferably, the heating disc 30 is made of metal, and the heating component 34 is a heating film attached to the lower end surface of the heating body 31, which is beneficial to heat transfer.

[0064] Referring to Figure 5 and Figure 8 As shown, the assembly of the heating body 31 is illustrated. The inner side of the heating disc 30 is sealingly fixed to the motor shell 11, and the outer side of the heating disc 30 is sealingly fixed to the bottom wall 90 of the inner container. The assembly hole 91 matching the outer side of the heating disc 30 is formed in the bottom wall 90, the inner side of the connecting part 94 is the assembly hole 91, and the outer bending part 33 is sealingly fixed to the assembly hole 91. The motor shell 11 has the annular upper end part 111, and the outer side of the upper end part 111 is flush with the inner side of the heating body 31, which is beneficial to the smooth flow of water along the radial inward direction from the heating body 31 to the upper end part 111. Preferably, the upper end part 111 is arranged with the outer side being lower than the inner side or horizontally, so as to keep the water flow continue to flow upward in the radial return direction or horizontally inward. Preferably, the included angle between the upper end part 111 and the horizontal plane is smaller than the included angle between the heating body 31 and the horizontal plane, which is beneficial to the water flow to return along the radial inward direction after reaching the upper end part 111. The heating disc 30 and the upper end part 111 of the motor shell 11 are components of the bottom wall 90.

[0065] Referring to Figure 12As shown, in order to fix the inner bend portion 32 and the motor shell 11, the outer side of the upper end portion 111 is flush with the inner side of the heating body 31, the inner bend portion 32 is provided with an inner extension portion 321 extending downward along the inner side of the heating body 31, and an inner extension edge 322 extending inwardly and downwardly from the lower end of the inner extension portion 321, wherein the inner extension edge 322 is located below the upper end portion 111; the heating disc 30 is installed from bottom to top, and the inner extension edge 322 is pressed against the lower side of the upper end portion 111. Preferably, the inner extension edge 322 is horizontally arranged, which is beneficial to the stamping forming of the inner bend portion 32, and is beneficial to the vertical pressing force of the inner extension edge 322 after assembly and fixation, and is beneficial to the firmness after fixation.

[0066] As shown in Figure 8 As shown, in order to facilitate the operation of fixing the inner bend portion 32 and the motor shell 11, the washing device further comprises an assembly fixing ring 60 for fixing the heating disc 30 and the motor shell 11, the assembly fixing ring 60 is fixed on the motor shell 10 by rotating clamping, and the inner extension edge 322 is located between the upper end portion 111 and the assembly fixing ring 60. By detachable assembly and fixation of the assembly fixing ring 60 and the motor shell 11, the inner extension edge 322 is pressed between the assembly fixing ring 60 and the upper end portion 111, so that the heating disc 30 is fixed on the heating disc 30. Preferably, the assembly fixing ring 60 is rotatably mounted to or detached from the motor shell 11, which is beneficial to the convenient and quick disassembly and assembly of the assembly fixing ring 60, and realizes the quick assembly or disassembly of the inner bend portion 32 and the motor shell 11.

[0067] As shown in Figure 1 , Figure 5 and Figure 8 As shown, the assembly and fixation structure between the assembly fixing ring 60 and the motor shell 11 is shown, the upper end portion 111 is provided with an outer cylinder body 112 extending downward, and the assembly fixing ring 60 is sleeved on the outer side of the outer cylinder body 112; a plurality of first outer blocking ribs 113 are arranged on the outer cylinder body 112 in a spaced manner, and a plurality of first inner blocking ribs 61 are arranged on the assembly fixing ring 60 in a spaced manner; after the assembly fixing ring 60 is clamped and fixed, the first inner blocking rib 61 is located above the first outer blocking rib 113; so that the assembly fixing ring 60 is fixed on the motor shell 11, and the inner extension edge 322 is pressed between the assembly fixing ring 60 and the upper end portion 111. Preferably, the number of first outer blocking ribs 113 provided on the outer cylinder body 112 is the same as the number of first inner blocking ribs 61 provided on the assembly fixing ring 60.

[0068] In order to realize the engagement of the first outer ribs 113 and the first inner ribs 61, the assembly fixing ring 60 needs to be sleeved on the outer cylinder 112, and the first inner ribs 61 are located on the upper side of the first outer ribs 113; the distance between the two adjacent first outer ribs 113 is greater than the circumferential size of the first inner ribs 61, and the distance between the two adjacent first inner ribs 61 is greater than the circumferential size of the first outer ribs 113, that is, after the assembly fixing ring 60 is sleeved on the outer cylinder 112, the first inner ribs 61 can pass between the two adjacent first outer ribs 113; the gap between the two adjacent first inner ribs 61 can also avoid the first outer ribs 113, or in other words, the first outer ribs 113 can move downward relatively between the two adjacent first inner ribs 61; then rotate the assembly fixing ring 60, so that the first inner ribs 61 are located on the upper side of the first outer ribs 113, and the fixing between the inner bending part 32 and the motor shell 11 is completed.

[0069] Due to the sealing and fixing between the inner mounting rib 322 and the upper end part 111, the compression force between the inner mounting rib 322 and the upper end part 111 is mainly relied on; the assembly fixing ring 60 is fixed on the outer cylinder 112 by rotation, and the axial size of the first inner rib 61 gradually increases in the direction of the rotation of the assembly fixing ring 60; specifically, the upper end surface of the first inner rib 61 is flush with the upper end surface of the assembly fixing ring 60, and the lower end surface of the first inner rib 61 is inclined downward in the direction of the rotation of the assembly fixing ring 60. In the rotation process of the assembly fixing ring 60, the assembly fixing ring 60 gradually extrudes the inner mounting rib 322 upward, increases the pressure between the inner mounting rib 322 and the upper end part 111, and is beneficial to increase the sealing performance.

[0070] Referring to Figures 13-16As shown, in order to assemble the assembling fixed ring 60 in place and avoid loosening, a positioning protrusion 114 is arranged on the first outer barrier rib 113, and a positioning groove 62 matched with the positioning protrusion 114 is arranged on the first inner barrier rib 61. After the assembling fixed ring 60 is rotated in place, the positioning protrusion 114 is located in the positioning groove 62, avoiding loosening of the assembling fixed ring 60 after being assembled in place, and preventing the assembling fixed ring 60 from continuing to rotate after being rotated and installed in place, thereby causing damage to the first outer barrier rib 113 and the first inner barrier rib 61. A stop rib 115 extending upward along one end of the first outer barrier rib 113 is arranged on the outer cylinder body 112. After the assembling fixed ring 60 is rotated in place, the stop rib 115 is stopped at the front side of the rotating installation direction of the first inner barrier rib 61, and is used to stop the first inner barrier rib 61 from continuing to move in the installation direction, thereby ensuring the stop of the assembling fixed ring 60 being rotated in place. Preferably, the positioning protrusion 114 is arranged at the rear part of the rotating installation direction of the first inner barrier rib 61. When the first inner barrier rib 61 starts to cooperate with the first outer barrier rib 113, the front part of the rotating installation direction of the first inner barrier rib 61 cooperates with the first outer barrier rib 113, and then the assembling fixed ring 60 is rotated, the part of the first inner barrier rib 61 cooperating with the first outer barrier rib 113 is increased, and finally when it is about to be installed in place, the positioning protrusion 114 is rotated to contact the first outer barrier rib 113; which is conducive to the rotating and clamping assembly of the assembling fixed ring 60, and reduces the influence of the positioning protrusion 114 on the rotating installation.

[0071] Referring to Figure 5 and Figure 21As shown, in order to ensure the sealing between the inner bend part 32 and the motor shell 11, a first sealing gasket 50 is arranged between the inner bend part 32 and the upper end part 111 of the motor shell 11. The first sealing gasket 50 has a ring groove-shaped sealing body 51 with a radial opening, and the inner installation edge 322 is located in the sealing body 51, or the sealing body 51 covers the outer side of the inner installation edge 322. By arranging the inner installation edge 322 in the sealing body 51, the upper and lower parts of the inner installation edge 322 are provided with sealing parts, which is beneficial to increase the sealing effect. Specifically, the sealing body 51 has a sealing upper side part 511 located above the inner installation edge 322, a sealing lower side part 512 located below the inner installation edge 322, and a connecting part 513 connecting the sealing upper side part 511 and the sealing lower side part 512. The sealing lower side part 512 is located between the inner installation edge 322 and the upper end part 111 of the motor shell 11, and the sealing lower side part 512 is located between the inner installation edge 322 and the assembly fixing ring 60. The sealing upper side part 511 and the sealing lower side part 512 are arranged in parallel, and the sealing body 51 has two layers of parallel sealing parts located above and below the inner installation edge 322, which is beneficial to increase the sealing effect. At least one first annular sealing rib 513 protruding upward is arranged on the sealing upper side part 511, and preferably two first annular sealing ribs 513 are arranged on the sealing upper side part 511 in a sleeved manner, which increases the sealing effect. At least one second annular sealing rib 514 protruding downward is arranged on the sealing lower side part 512, which increases the sealing effect. The first sealing gasket 50 further has a sealing extension part 52 extending outward and upward along the outer side of the sealing upper side part 511. The sealing extension part 52 is located between the inner extension part 321 and the motor shell 11, fills the gap between the inner extension part 321 and the motor shell 11, avoids the accumulation of residual water in the gap, and plays a sealing role.

[0072] As shown in Figure 5 , Figure 10 and Figure 12 , for the fixation of the outer bend part 33 and the assembly hole 91, the outer bend part 33 has an outer extension part 331 extending downward along the outer side of the heating body 31, and an outer installation edge 332 extending outward from the lower end of the outer extension part 331. The outer installation edge 332 is located below the connecting part 94, and the heating body 31 extends into the assembly hole 91. The washing device further comprises an assembly bracket 70 for fixing the heating disc 30 and the assembly hole 91. The assembly bracket 70 is fixed at the assembly hole 91. By arranging the assembly bracket 70, the outer side of the heating disc 30 is fixed. By rotating the assembly bracket 70, the assembly bracket 70 is clamped and fixed on the assembly hole 91, which is beneficial to the assembly operation.

[0073] As shown in Figure 5 and Figure 17As shown, the assembling bracket 70 gives the outer bending part 33 an upward pressing force, and a plurality of downward extending fixing claws 92 are arranged on the bottom wall at the assembling hole 91, and a plurality of second outer blocking ribs 71 are arranged on the assembling bracket 70 and extend outward, and the second outer blocking ribs 71 are matched and engaged with the fixing claws 92. The fixing claws 92 have a downward extending supporting part 921 and a blocking claw part 922 which is inwardly bent and extends along the lower end of the supporting part 921, and the second outer blocking ribs 71 are above the blocking claw part 922. The heating disc 30 is held by the assembling bracket 70, moves upward, and the assembling bracket 70 is rotated so that the second outer blocking ribs 71 are engaged above the fixing claws 92. The plurality of fixing claws 92 and the plurality of second outer blocking ribs 71 are circumferentially arranged, and preferably, the number of the fixing claws 92 is the same as the number of the second outer blocking ribs 71. The assembling bracket 70 is fixed by rotation at the assembling hole 91, the distance between two adjacent second outer blocking ribs 71 is greater than the circumferential dimension of the fixing claws 91, and the distance between two adjacent fixing claws 92 is greater than the circumferential dimension of the second outer blocking ribs 71; that is, the assembling bracket 70 moves upward, and the second outer blocking ribs 71 can pass between two adjacent fixing claws 92; the gap between two adjacent second outer blocking ribs 71 can also avoid the fixing claws 92, or in other words, the fixing claws 92 can relatively move downward between two adjacent second outer blocking ribs 71; then the assembling bracket 70 is rotated so that the second outer blocking ribs 71 are above the blocking claw part 922 of the fixing claws 92, and the fixing between the outer bending part 33 and the assembling hole 91 is completed.

[0074] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified by those of ordinary skill in the art, or some technical features can be replaced by equivalent; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the present application.

Claims

1. A dishwasher, characterized in that The utility model relates to a washing machine, comprising: a washing cavity for containing tableware; a washing pump for delivering washing water in a washing pump cavity to the washing cavity; a heating cavity surrounding the outside of the washing pump cavity and being in circumferential communication with the washing pump cavity for heating washing water flowing therethrough; a filter cavity surrounding the outside of the heating cavity and being in circumferential communication with the heating cavity; an isolation plate is provided between the heating cavity and the washing cavity, the isolation plate is arranged with a low outer part and a high inner part; water flows from the filter cavity to the washing pump cavity through the heating cavity, forming an annular backflow waterway; the bottom surface of the heating cavity is provided with a heating disc, the heating disc has an annular heating body, the heating body is arranged with a low outer part and a high inner part; in the direction of radially inward, the distance between the heating body and the isolation plate gradually increases; an upward and inward extending inclined transition part is provided on the inner side of the bottom surface of the filter cavity, a connecting part extends inward along the inclined transition part, the outer side of the heating disc is sealingly fixed with the connecting part; a plurality of radially arranged spacing ribs extending upward are provided on the inclined transition part and the connecting part, two adjacent spacing ribs, the top isolation plate, and the inclined transition part and the connecting part at the lower part surround to form a communication flow channel, the spacing ribs are used for supporting the isolation plate.

2. The dishwasher according to claim 1, characterized in that a planar filter screen for filtering washing water is provided between the filter cavity and the washing cavity.

3. The warewash machine of claim 2, wherein, a plurality of communication flow channels are provided between the filter cavity and the heating cavity, the communication flow channels are arranged circumferentially and are spaced apart.

4. The warewashing machine of claim 1, wherein, The angle between the isolation plate and the horizontal plane is greater than the angle between the heating body and the horizontal plane.

5. The warewashing machine of claim 1, wherein, an inner extension part extending horizontally inward along the inner side of the isolation plate is provided, the inner extension part is fitted to the washing pump.

6. The dishwasher according to any one of claims 1 to 5, characterized in that the upper end surface of the spacing rib has the same inclination angle as the isolation plate.

7. The dishwasher according to any one of claims 1 to 5, characterized in that a water passing port is provided on the bottom surface of the washing cavity, the water passing port is in communication with a drainage pump cavity, a water flow groove connected with the water passing port is provided on the bottom surface of the washing cavity, the depth of the water flow groove gradually increases in the direction close to the water passing port.

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