Zero residual water system of dish-washing machine and dish-washing machine

Abstract

The zero-residual-water system comprises a water cup, a drainage pump, a respirator, a first main drainage pipe and a second main drainage pipe, the water cup is located at the bottom of an inner cavity of the dish-washing machine, a drainage bin is integrally formed on the outer side of the water cup, and an impeller of the drainage pump is installed in the drainage bin; an auxiliary drainage port is formed in the lowest position of the outer side of the drainage bin, and a residual water port is formed in the outer side of the flow channel water outlet end of the drainage flow channel; the self-priming pump is provided with an input end and an output end, the first auxiliary drainage pipe is communicated with the auxiliary drainage port of the drainage bin and the input end of the self-priming pump, and the second auxiliary drainage pipe is communicated with the output end of the self-priming pump and the residual water port of the drainage runner. According to the utility model, residual water at the bottom of the water cup can be discharged through the work of the self-priming pump, so that the residual water can be discharged, and the effect of zero residual water is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dish-washing machine, more particularly to a zero residual water system of a dish-washing machine, and to a dish-washing machine with the zero residual water system. BACKGROUND

[0002] At the end of washing, the dish-washing machine needs to discharge the waste water after washing through a drainage pump, and the washing waste water is discharged. After the drainage pump completes the drainage, part of the waste water may flow back into the water cup of the dish-washing machine, thereby causing residual water to remain in the dish-washing machine, which is prone to causing odor and bacteria, affecting the user experience and safety.

[0003] Moreover, at present, the drainage pump of the dish-washing machine usually adopts an impeller pump, which realizes the discharge of the waste water of the dish-washing machine through centrifugal action generated by the rotation of the impeller. When the water level of the waste water at the bottom of the water cup is low, the impeller cannot generate pump pressure in the drainage cavity, causing the water in the water cup to be unable to be effectively discharged, thereby causing adverse effects of residual water.

[0004] Therefore, a new scheme needs to be proposed to solve this problem. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the defects of the prior art, and provides a zero residual water system of a dish-washing machine and the dish-washing machine.

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

[0007] A zero residual water system of a dish-washing machine, comprising a water cup, a drainage pump, a breather, a main drainage pipe one and a main drainage pipe two, wherein the water cup is located at the bottom of the inner cavity of the dish-washing machine, the outer side of the water cup is integrally formed with a drainage bin, and the impeller of the drainage pump is installed in the drainage bin.

[0008] The outer side of the drainage bin is provided with a main drainage port, the breather is provided with a drainage flow channel, the drainage flow channel has a flow channel water inlet end and a flow channel water outlet end, the main drainage pipe one is connected to the main drainage port of the drainage bin and the flow channel water inlet end of the drainage flow channel, and the main drainage pipe two is connected to the flow channel water outlet end of the drainage flow channel.

[0009] The outer side of the lowest part of the drainage bin is provided with an auxiliary drainage port, and the outer side of the flow channel water outlet end of the drainage flow channel is provided with a residual water port; the zero residual water system further comprises a self-priming pump, an auxiliary drainage pipe one and an auxiliary drainage pipe two, the self-priming pump has an input end and an output end, the auxiliary drainage pipe one is connected to the auxiliary drainage port of the drainage bin and the input end of the self-priming pump, and the auxiliary drainage pipe two is connected to the output end of the self-priming pump and the residual water port of the drainage flow channel.

[0010] The non-return valve one is arranged in the water inlet end of the flow channel and is used for unidirectional flow from the water inlet end to the water outlet end of the flow channel.

[0011] The non-return valve two comprises a pipe body and a non-return piece, the inner periphery of the pipe body is fixedly connected with a convex ring part, and the convex ring part is arranged towards the main drain pipe one.

[0012] The pipe body comprises a small-diameter section and a large-diameter section, and the convex ring part is formed between the small-diameter section and the large-diameter section.

[0013] The inner periphery of the main drain port is fixedly connected with a limiting block, and the outer periphery of the small-diameter section is provided with a limiting groove.

[0014] The outer side of the non-return piece is provided with a mounting block, and the outer side of the non-return piece and the mounting block are connected through a connecting piece.

[0015] The outer periphery of the pipe body is provided with a mounting groove one, and the mounting block is embeddedly mounted in the mounting groove one.

[0016] The mounting block is fixedly connected with a positioning block, and the positioning block is embedded in the mounting groove two.

[0017] The outer periphery end part of the pipe body towards the main drain pipe one is formed with a tapered surface, and one side of the positioning block towards the main drain pipe one is formed with an inclined surface.

[0018] The self-priming pump is a volumetric pump.

[0019] The utility model discloses further provide a kind of dish washer, including the zero residual water system as described above, when draining, the residual water of the water cup bottom of dish washer can be drained, through the common action of main drainage and auxiliary drainage pipeline, the residual water of the water cup bottom can be drained, realize the effect of zero residual water.

[0020] In summary, the utility model has the following beneficial effects:

[0021] The water cup is integrally formed with a drainage bin on the outer side, a drainage pump is installed on the outer side of the drainage bin, and the impeller of the drainage pump is installed in the drainage bin, so that the drainage can be realized by the working of the drainage pump. A main drainage port is arranged on the outer side of the drainage bin, so that the water in the water cup and the drainage bin can be drained to realize the drainage of washing water. When the dishwasher is draining, the drainage pump is driven to rotate, so that the drainage effect can be formed in the drainage bin, the sewage can be drained from the main drainage port, and then sequentially flows through the first main drainage pipe, the drainage flow channel and the second main drainage pipe. The second main drainage pipe can drain the sewage into the sewer, thereby realizing the drainage of the sewage and forming the main drainage of the dishwasher.

[0022] By arranging the residual water drainage structure, the residual water at the bottom of the water cup can be drained. By working of the self-priming pump, the residual water at the bottom of the water cup can be drained, the water in the water cup can be drained into the drainage flow channel of the breather, and then the water can be guided to the water outlet end of the flow channel, and then drained from the second main drainage pipe, thereby realizing the drainage of residual water.

[0023] By arranging the check valve one and the check valve two in the drainage flow channel, the one-way guiding effect can be realized in the drainage flow channel, thereby effectively avoiding backflow and ensuring effective drainage of the sewage. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of a zero residual water system of a dishwasher in the embodiment;

[0025] Figure 2 It is a bottom view of a zero residual water system of a dishwasher in the embodiment;

[0026] Figure 3 It is a side view of a zero residual water system of a dishwasher in the embodiment;

[0027] Figure 4 It is a structural view of the drainage bin in the embodiment;

[0028] Figure 5 It is a sectional view of the check valve two in the embodiment;

[0029] Figure 6 It is an exploded view of the check valve two in the embodiment;

[0030] Figure 7 It is a structural view of the check valve in the embodiment.

[0031] Reference numerals: 1. Water cup; 11. Drainage chamber; 12. Main drain outlet; 121. Limiting block; 13. Auxiliary drain outlet; 2. Drainage pump; 3. Breather; 30. Drainage channel; 31. Channel inlet; 31. Check valve 1; 311. Channel outlet; 32. Residual water port; 33. Self-priming pump; 4. Input end; 41. Output end; 42. Main drain pipe 1; 6. Main drain pipe 2; 7. Auxiliary drain pipe 1; 8. Auxiliary drain pipe 2; 9. Check valve 2; 910. Pipe body; 911. Small diameter section; 912. Large diameter section; 913. Convex ring; 914. Limiting groove; 915. Mounting groove 1; 916. Mounting groove 2; 917. Conical surface; 920. Check plate; 921. Mounting block; 922. Connecting piece; 923. Positioning block; 924. Inclined surface. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] This embodiment discloses a zero-residual-water system for a dishwasher, referring to... Figures 1-7 As shown, it includes a water cup 1, a drain pump 2, a breather 3, a main drain pipe 5 and a main drain pipe 6. The water cup 1 is located at the bottom of the dishwasher's inner cavity and can collect the water used for washing.

[0034] A drain chamber 11 is integrally formed on the outside of the water cup 1. A drain pump 2 is installed on the outside of the drain chamber 11, and the impeller of the drain pump 2 is installed inside the drain chamber 11. Drainage is achieved by the operation of the drain pump 2. A main drain outlet 12 is provided on the outside of the drain chamber 11, which can discharge the water in the water cup 1 and the drain chamber 11 to realize the discharge of washing water.

[0035] Reference Figure 3 As shown, the respirator 3 has a drainage channel 30 inside, which has an inverted U-shaped structure. The drainage channel 30 has a water inlet end 31 and a water outlet end 32, which are located on the lower two sides of the inverted U-shaped structure, respectively. The main drainage pipe 1 5 connects the main drainage port 12 of the drainage chamber 11 and the water inlet end 31 of the drainage channel 30, and the main drainage pipe 2 6 connects to the water outlet end 32 of the drainage channel 30.

[0036] When the dishwasher is draining, the drain pump 2 rotates and drives the dishwasher to drain inside the drain chamber 11. The sewage can be discharged from the main drain outlet 12 and flows through the main drain pipe 1, the drain channel 30 and the main drain pipe 2 6 in sequence. The main drain pipe 2 6 can discharge the sewage to the drain outlet, thereby realizing the sewage discharge and forming the main drainage of the dishwasher.

[0037] The residual water system of the dishwasher in the embodiment also has a residual water drainage structure, which can drain the residual water at the bottom of the water cup 1. As shown in Figure 1 The auxiliary drainage port 13 is arranged at the lowest position outside the drainage bin 11, and the residual water port 33 is arranged outside the flow channel outlet end 32 of the drainage flow channel 30. Since the residual water port 33 is located at the lowest position of the water cup 1 and the drainage bin 11, the residual water at the bottom of the water cup 1 can be drained. After the residual water in the water cup 1 is drained, the effect of zero residual water in the dishwasher can be achieved.

[0038] The residual water system of the dishwasher in the embodiment also includes a self-priming pump 4, an auxiliary drainage pipe one 7, and an auxiliary drainage pipe two 8. The self-priming pump 4 has an input end 41 and an output end 42. The auxiliary drainage pipe one 7 connects the auxiliary drainage port 13 of the drainage bin 11 and the input end 41 of the self-priming pump 4. The auxiliary drainage pipe two 8 connects the output end 42 of the self-priming pump 4 and the residual water port 3 of the drainage flow channel 30.

[0039] In the embodiment, the self-priming pump 4 is a displacement pump, for example, a diaphragm pump or a peristaltic pump, which can drain the water in the water cup 1 and forcibly drain the accumulated water at the bottom of the water cup, thereby achieving residual water drainage and zero residual water.

[0040] After the drainage of the dishwasher is completed, part of the residual water at the bottom of the water cup 1 is still accumulated. The residual water at the bottom of the water cup 1 can be drained by the operation of the self-priming pump 4. The water in the water cup 1 can be drained into the drainage flow channel 30 of the breather 3, and then be guided to the flow channel outlet end 32, and then be drained from the main drainage pipe two 6, thereby achieving residual water drainage.

[0041] As shown in Figure 3 Figure 4 In the embodiment, a check valve one 311 and a check valve two 9 are also included. The check valve one 311 is installed in the flow channel inlet end 31 and allows one-way flow from the flow channel inlet end 31 to the flow channel outlet end 32. The check valve two 9 is installed in the main drainage port 12 and allows one-way flow from the drainage bin 11 to the main drainage pipe one 5, thereby forming a one-way flow structure in the main drainage pipe and avoiding backflow of sewage.

[0042] Moreover, the self-priming pump 4 is a displacement pump and can also cut off the flow in the middle of the auxiliary drainage pipe, thereby avoiding residual water backflow in the self-priming pump and the auxiliary drainage pipe.

[0043] As shown in Figures 5-7 In the embodiment, the check valve two 9 includes a pipe body 910 and a check piece 920. The inner periphery of the pipe body 910 is fixedly connected with a convex ring part 913, which is arranged towards the main drainage pipe one 5. The check piece 920 is located on the side of the convex ring part 913 towards the main drainage pipe one 5.​

[0044] The check piece 920 is located in the pipe body 910, the outer side of the check piece 920 is connected to the pipe body 910, the check piece 920 can close the pipe body 910 relative to the convex ring part 913, and the check piece 920 can open the pipe body 910 elastically deformed towards the main drain pipe 15 direction. When draining, the check piece 920 can be elastically deformed in the direction away from the convex ring part 913, so that the check piece 920 can open the inner circumferential opening of the convex ring part 913, and then the sewage can be smoothly discharged.

[0045] When the sewage backflows, the backflowing sewage can push the check piece 920, the check piece 920 will be pressed against the convex ring part 913, thereby closing the opening in the inner circumferential direction of the convex ring part 913, and achieving sewage backflow. In the static state, the check piece 920 can be approximately close to the convex ring part 913 under the elastic action of itself, thereby effectively stopping the backflow.

[0046] Referring to Figure 5 , Figure 6 , the pipe body 910 includes a small diameter section 911 and a large diameter section 912, and the convex ring part 913 is formed between the small diameter section 911 and the large diameter section 912. The small diameter section 911 is inserted into the main drain port 12, and the stepped structure of the outer circumferences of the small diameter section 911 and the large diameter section 912 realizes the pressing positioning.

[0047] The limit block 121 is fixedly connected to the inner circumference of the main drain port 12, and the limit groove 914 is opened on the outer circumference of the small diameter section 911. The limit block 121 and the limit groove 914 are inserted and limited to each other, thereby realizing the plug-in positioning of the pipe body 910 and ensuring the structural stability of the installation. The large diameter section 912 is exposed outside the main drain port 12, and the outer diameter of the large diameter section 912 is adapted to the outer diameter of the main drain port 12. The main drain pipe 15 is sleeved in the main drain port 12 and the large diameter section 912 of the pipe body 910, thereby realizing the connection of the main drain pipe 15 and the main drain port 12. When the main drain pipe 15 is pressed and fitted with the main drain port 12 and the large diameter section 912 of the pipe body 910, the pipe body 910 can be stably fixed and limited, thereby realizing the installation of the check valve 9.

[0048] Referring to Figure 7 , the installation block 921 is arranged on the outer side of the check piece 920, and the outer side of the check piece 920 and the installation block 921 are connected through the connecting piece 922. The installation block 921 is installed on the pipe body 910, and the connecting piece 922 can be elastically bent and deformed. The width of the connecting piece 922 is relatively thin, which can be elastically bent and deformed, thereby enabling the check piece 920 to be elastically deformed and opened and closed, and thereby realizing the one-way conduction and reverse cutting-off of the pipe body 910.

[0049] The installation groove one 915 is arranged on the outer periphery of the pipe body 910 and has an arc structure.

[0050] The width of the connecting piece 922 is matched with the width of the installation groove two 916, the connecting piece 922 can pass through the installation groove two 916, and then the reverse prevention piece 920 can be installed into the installation groove one 915 along the installation groove two 916. The installation block 921 can be embedded into the installation groove one 915 along the radial direction, the shape of the installation block 921 is matched with the installation groove one 915, and then the installation block 921 can be installed and positioned with the pipe body 910.

[0051] In addition, the installation block 921 is embedded into the installation groove one 915, the outer periphery of the installation block 921 protrudes outward from the installation groove one 915 and protrudes outward from the outer periphery of the large-diameter section 912. After the sleeve installation of the main drain pipe one 5, the inner periphery of the main drain pipe one 5 can press and fix the installation block 921 and the bottom of the installation groove one 915, and then the installation block 921 can be connected and fixed with the pipe body 910.

[0052] The positioning block 923 is fixedly connected to the side of the installation block 921 away from the small-diameter section 911. The width of the positioning block 923 is matched with the width of the installation groove two 916. During installation of the pipe body 910, the positioning block 923 is embedded into the installation groove two 916, and then the installation block 921 and the positioning block 923 can be positioned with the pipe wall of the pipe body 910 together, the area of the pressing contact is increased, the overall installation stability of the installation block 921, the positioning block 923 and the reverse prevention piece 920 is ensured, and the one-way conduction and reverse cut-off of the reverse prevention piece 920 in the pipe body 910 is ensured, and the backflow of sewage is prevented.

[0053] Further, in order to facilitate the sleeve installation of the main drain pipe one 5 and improve the smoothness of the sleeve installation, the tapered surface 917 is formed on the outer periphery end of the pipe body 910 towards the main drain pipe one 5, and the inclined surface 924 is formed on the side of the positioning block towards the main drain pipe one 5. The tapered surface 917 and the inclined surface 924 can form a matched tapered structure, and the mutual plug-in guidance can be realized during the plug-in process of the main drain pipe one 5.

[0054] The embodiment also discloses a dishwasher including the zero residual water system, during drainage, the residual water at the bottom of the water cup of the dishwasher can be drained, the residual water at the bottom of the water cup 1 can be drained through the joint action of the main drain pipe and the auxiliary drain pipe, and the zero residual water effect is realized.

[0055] The above merely is preferred implementation manner of the present application, the protection scope of the present application is not only limited to the above examples, and belongs to the technical scheme under the idea of the present application all belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled person in the art, under the premise of not departing from the principle of the present application, some improvements and decorations, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A zero residual system for a dishwasher, characterized in that, The utility model provides a dish washing machine's drainage system, including water cup (1), drainage pump (2), respirator (3), main drain pipe one (5) and main drain pipe two (6), water cup (1) is located dish washing machine's inner chamber bottom, the outside of water cup (1) is integrally formed with drainage storehouse (11), the impeller of drainage pump (2) is installed in drainage storehouse (11) inside, The outside of drainage storehouse (11) is equipped with main drain port (12), the inside of respirator (3) is equipped with drainage flow channel (30), drainage flow channel (30) has flow channel water inlet end (31) and flow channel water outlet end (32), main drain pipe one (5) is connected with the main drain port (12) of drainage storehouse (11) and the flow channel water inlet end (31) of drainage flow channel (30), main drain pipe two (6) is connected to the flow channel water outlet end (32) of drainage flow channel (30), The outside of the lowest place of drainage storehouse (11) is equipped with auxiliary drain port (13), the outside of flow channel water outlet end (32) of drainage flow channel (30) is equipped with residual water port (33), further including self-priming pump (4), auxiliary drain pipe one (7) and auxiliary drain pipe two (8), the self-priming pump (4) has input end (41) and output end (42), the auxiliary drain pipe one (7) is connected with the auxiliary drain port (13) of drainage storehouse (11) and the input end (41) of self-priming pump (4), the auxiliary drain pipe two (8) is connected with the output end (42) of self-priming pump (4) and the residual water port (33) of drainage flow channel (30), Further including check valve one (311) and check valve two (9), check valve one (311) is installed in flow channel water inlet end (31), for from flow channel water inlet end (31) to flow channel water outlet end (32) one-way flow communication, check valve two (9) is installed in main drain port (12), for from drainage storehouse (11) to main drain pipe one (5) one-way flow communication.

2. The zero residual system of a dishwasher according to claim 1, wherein, Check valve two (9) includes pipe body (910) and check piece (920), the inner periphery of pipe body (910) is fixedly connected with convex ring part (913), the convex ring part (913) is arranged towards main drain pipe one (5) direction, check piece (920) is located on the side of convex ring part (913) towards main drain pipe one (5), check piece (920) is located in pipe body (910), the outside of check piece (920) is connected to pipe body (910), check piece (920) can close pipe body (910) with the opposite convex ring part (913), check piece (920) can elastically deform towards main drain pipe one (5) direction and open pipe body (910). 3.The zero residual system of the dish washer according to claim 2, wherein, Pipe body (910) includes small diameter section (911) and large diameter section (912), and the convex ring part (913) is formed between the small diameter section (911) and the large diameter section (912); the small diameter section (911) is inserted into the main drain port (12), the large diameter section (912) is exposed outside the main drain port (12), and the main drain pipe one (5) is arranged in the main drain port (12) and the large diameter section (912) of the pipe body (910). 4.The zero residual system of the dish washer according to claim 3, wherein, The inner periphery of the main drain port (12) is fixedly connected with a limiting block (121), and the outer periphery of the small-diameter section (911) is provided with a limiting groove (914), and the limiting block (121) and the limiting groove (914) are inserted and limited to each other. 5.The zero residual system of the dish washer according to claim 3, wherein, The outer side of the reverse stop sheet (920) is provided with a mounting block (921), and the outer side of the reverse stop sheet (920) and the mounting block (921) are connected through a connecting sheet (922); the mounting block (921) is mounted on the pipe body (910), and the connecting sheet (922) can be elastically bent and deformed. 6.The zero residual system of the dish washer according to claim 5, wherein, The outer periphery of the pipe body (910) is provided with a mounting groove I (915), and the mounting block (921) is embeddedly mounted in the mounting groove I (915); the end of the pipe body (910) is provided with a mounting groove II (916), and the mounting groove II (916) is used for the connecting sheet (922) to pass through. 7.The zero residual system of the dish washer according to claim 6, wherein, The mounting block (921) is fixedly connected with a positioning block (923), and the positioning block (923) is embedded in the mounting groove II (916). 8.The zero residual system of the dish washer according to claim 7, wherein, The outer end of the pipe body (910) towards the main drain pipe I (5) is formed with a tapered surface (917), and one side of the positioning block towards the main drain pipe I (5) is formed with an inclined surface (924). 9.The zero residual system of the dish washer according to claim 1, wherein, The self-priming pump (4) is a volumetric pump.

10. A dishwasher, characterized in that A zero residual water system comprising any one of claims 1-9. A zero residual water system comprising any one of claims 1-9.

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