A self-foaming dishwashing sink

By installing a foaming device at the bottom of the sink and using a motor to drive an internal rotating component to move the hydraulic jets up and down inside the liquid storage tank, the problem of poor foaming effect in existing sinks has been solved, thus improving cleaning performance and saving water resources.

CN116671837BActive Publication Date: 2026-05-01KUNMING UNIV OF SCI & TECH
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Filing Date
2023-06-18
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing dishwasher sinks are not effective at producing foam, leading to water waste.

Method used

A foaming device is installed at the bottom of the sink, including a spray cover, a liquid storage tank, a motor, an inner swirl assembly, and a hydraulic spray component. The motor drives the inner swirl assembly to make the hydraulic spray component move up and down inside the liquid storage tank. With the help of the return spring, the detergent and water are mixed and dispersed to form foam.

Benefits of technology

It improves cleaning effectiveness, reduces water consumption, and avoids water waste caused by poor foaming effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116671837B_ABST
    Figure CN116671837B_ABST
Patent Text Reader

Abstract

The application relates to the kitchen household technical field and discloses a self-foaming dish washing tank, which comprises a dish washing tank and a drainage pipeline arranged at the bottom of the dish washing tank, the inner side of the dish washing tank is provided with a convex part, a dish washing rack is arranged on the convex part, and a foaming device is arranged at the bottom of the dish washing rack; the inner rotating assembly is driven to rotate by a motor, the hydraulic jetting member reciprocates up and down in the liquid storage cylinder under the extrusion of the inner rotating assembly and the elastic pulling of the elastic force of the reset spring, when the hydraulic jetting member goes up, the detergent stored in the liquid storage cylinder is extruded through the jetting cover member, the detergent is easy to contact and mix with water in the dish washing tank to generate foam, bowls, dishes and plates placed on the dish washing rack are easy to fully contact with the cleaning foam, and therefore the cleaning effect is improved; compared with the prior art, the application can better generate foam of the cleaning agent under the use of a small amount of water, and solves the problem of poor foaming effect and water waste in the prior art.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of kitchen and home technology, specifically to a self-foaming dishwasher. Background Technology

[0002] A dishwasher sink is an essential appliance in any kitchen. Normally, a dishwasher sink only needs to hold water when washing dishes, and it should drain smoothly. However, people often habitually place basins, plates, bowls, and dishcloths into the sink, frequently clogging the drain and causing inconvenience.

[0003] A search revealed that announcement number 210043963U discloses an intelligent purifying dishwasher, comprising a square tank and a housing outside the tank. The tank has a water outlet at its center bottom, equipped with a filter and a piston. A support plate matching the bottom of the tank is also present, with legs under the support plate. A base is located on the right side of the tank bottom, with the legs on the right side of the support plate hinged to the base. A magnet is located on the upper part of the right side wall of the tank. The support plate rotates along the base to approach the right side wall of the tank and attracts the magnet. An overflow outlet is located on the upper left side of the tank. An alarm device is located on the inner side of the bottom of the housing. This dishwasher prevents bowls, plates, and other items from getting greasy and clogging the water outlet, and features a high water level alarm, saving water.

[0004] However, the above-mentioned sink still has the following problems: The sink is supported by a support plate at a certain height by the support legs, and then the washing operation is carried out on the support plate. Due to the space limitation of the support plate, the detergent is not easy to mix with water, resulting in poor foaming effect and affecting the cleaning effect. Therefore, a large amount of water needs to be added to mix with the detergent, which will result in water waste. Summary of the Invention

[0005] This invention proposes a self-foaming dishwasher, which solves the problem of poor foaming effect and water waste caused by existing technologies.

[0006] The technical solution of the present invention is as follows: A self-foaming dishwasher includes a dishwasher and a drain pipe disposed at the bottom of the dishwasher. A protrusion is provided on the inner side of the dishwasher, and a dish rack is placed on the protrusion. A foaming device is installed at the bottom of the dish rack. The foaming device includes:

[0007] The spray cover is fixedly installed at the bottom of the dish rack;

[0008] The liquid storage tank is fixedly installed at the bottom of the spray cover;

[0009] The motor is fixed inside the jet cover.

[0010] The inner rotating component is rotatably installed inside the liquid storage cylinder and rotates under the drive of a motor;

[0011] The hydraulic jet component is slidably installed inside the liquid storage tank and slides up and down inside the liquid storage tank in coordination with the rotation of the inner swivel assembly;

[0012] A return spring is installed inside the liquid storage tank, and the hydraulic jet component is elastically connected to the liquid storage tank.

[0013] Preferably, the spray cover includes a mounting cylinder, a threaded connector is fixed to the top of the mounting cylinder, a mounting head is fixed to the bottom of the dish rack, the threaded connector is threaded into the mounting head, a cover plate is fixed to the bottom of the mounting cylinder, and windows are provided on the cover plate in a ring around the mounting cylinder.

[0014] Preferably, a seepage net is fixed inside the window.

[0015] Preferably, the top inner side of the liquid storage cylinder is provided with an internal thread that is threaded to the cover plate, and a water inlet pipe communicating with the inner cavity of the liquid storage cylinder is fixed on one side of the top of the liquid storage cylinder. The inner middle of the liquid storage cylinder is provided with symmetrically distributed guide blocks.

[0016] Preferably, the inlet pipe is equipped with a one-way valve, and the flow direction of the one-way valve is from the outside of the liquid storage tank to the inside of the liquid storage tank.

[0017] Preferably, the hydraulic jet component includes a sliding sleeve, a rubber plug that is slidably disposed inside a liquid storage cylinder is fixed on the top of the sliding sleeve, and slots that engage with guide blocks are provided on both sides of the rubber plug. Rollers are symmetrically arranged on both sides of the sliding sleeve, one end of the roller is rotatably connected to the sliding sleeve, and the other end of the roller extends into the sliding sleeve and is fixed with a guide wheel.

[0018] Preferably, the inner rotating assembly includes a column, the output shaft of the motor passes through the mounting cylinder and the rubber plug and is fixedly connected to the column, and the column surface is provided with two spirally arranged protrusions.

[0019] Preferably, the return spring is sleeved on the outside of the sliding sleeve, and the two ends of the return spring are fixed to the bottom surface of the rubber stopper and the bottom inner wall of the liquid storage cylinder, respectively. The guide wheel abuts against the raised upper surface under the elastic force of the return spring.

[0020] Preferably, the dishwashing basin includes an outer basin and an inner basin fixed within the outer basin. A gap is left between the outer basin and the inner basin to form a drainage cavity. An overflow hole communicating with the drainage cavity is provided on one side of the top of the inner basin.

[0021] Preferably, the drainage pipe includes a main pipe and a branch pipe fixed to the bottom of the sink. The main pipe is connected to the bottom cavity of the inner tank. The top inner side of the main pipe is filled with a pressure plug. One end of the branch pipe is connected to the bottom cavity of the drainage chamber, and the other end of the branch pipe is connected to the main pipe.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. In this invention, the inner rotating component is driven by a motor to rotate. Under the pressure of the inner rotating component on the hydraulic jet component and the elastic pull of the return spring, the hydraulic jet component moves up and down in the liquid storage tank. When the hydraulic jet component moves upward, the detergent stored in the liquid storage tank can be squeezed out through the spray cover, so that the detergent can easily come into contact with and mix with the water in the sink, thereby creating foam on the water surface. This allows the bowls, plates, and dishes placed on the dish rack to fully contact the cleaning foam, thereby improving the cleaning effect. Compared with the prior art, this invention can better create foam with less water, solving the problem of poor foaming effect and water waste in the prior art.

[0024] 2. In this invention, the cover plate has windows arranged in a ring around the mounting cylinder. When the pressure inside the liquid storage cylinder increases, the detergent inside the liquid storage cylinder can be squeezed out through the windows. A permeation mesh is fixed inside the windows, which can make the detergent more evenly dispersed. At the same time, it is easy to mix with water through the mesh of the permeation mesh to generate foam, thereby increasing the amount of foam.

[0025] 3. In this invention, when the column rotates continuously until the protrusion and the guide wheel are misaligned, the rubber stopper slides downward under the weight of the rubber stopper and the sliding sleeve and the elastic force of the return spring. Then, under the negative pressure in the liquid storage cylinder, part of the external water flows back to the liquid storage cylinder through the window, and the other part flows back to the liquid storage cylinder through the water inlet pipe. Under the countercurrent of water and detergent in two directions, the detergent and water in the liquid storage cylinder can be premixed to facilitate subsequent foaming.

[0026] 4. In this invention, a protrusion is provided on the inner side of the sink, on which a dish rack can be placed. The dish rack can be used for washing operations, which can support the operating area and the drain at a certain height, thus preventing the drain from being blocked by dishcloths or other items during the washing process. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of a self-foaming dishwasher structure proposed in this invention;

[0029] Figure 2 This is a schematic diagram of the foaming device proposed in this invention;

[0030] Figure 3 This is a front view schematic diagram of the foaming device proposed in this invention;

[0031] Figure 4 For this Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0032] Figure 5 This is a three-dimensional cross-sectional structural diagram of the foaming device proposed in this invention;

[0033] Figure 6 This is a three-dimensional sectional exploded view of the foaming device proposed in this invention;

[0034] Figure 7 This is a schematic diagram of the jet cover structure proposed in this invention;

[0035] In the diagram: 1. Dishwashing basin; 11. Outer basin; 12. Inner basin; 121. Overflow hole; 13. Drainage chamber; 14. Protrusion; 2. Dish rack; 21. Mounting head; 3. Foaming device; 31. Spray cover; 311. Mounting cylinder; 312. Threaded connector; 313. Cover plate; 3131. Window; 3132. Drainage mesh; 32. Liquid storage tank; 321. Water inlet pipe; 3211. Check valve; 322. Guide block; 33. Motor; 34. Internal rotation assembly; 341. Column; 342. Protrusion; 35. Hydraulic spray component; 351. Sliding sleeve; 352. Rubber stopper; 353. Bayonet; 354. Roller; 355. Guide wheel; 36. Return spring; 4. Drainage pipe; 41. Main pipe; 42. Pressure plug; 43. Branch pipe. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 and Figure 4This invention provides a technical solution: a self-foaming dishwasher, including a dishwasher 1 and a drain pipe 4 disposed at the bottom of the dishwasher 1. The inner side of the dishwasher 1 has a protrusion 14, on which a dishwasher rack 2 is placed. A foaming device 3 is installed at the bottom of the dishwasher rack 2. The foaming device 3 includes a spray cover 31, a liquid storage cylinder 32, a motor 33, an inner rotating assembly 34, a hydraulic spray component 35, and a return spring 36. Detergent can be placed in the liquid storage cylinder 32. After the water level in the dishwasher 1 overflows the liquid storage cylinder 32, detergent can be released through... The motor 33 drives the inner rotating component 34 to rotate. Under the pressure of the inner rotating component 34 on the hydraulic jet component 35 and the elastic pull of the return spring 36, the hydraulic jet component 35 moves up and down in the liquid storage cylinder 32. When the hydraulic jet component 35 moves upward, it can squeeze out the detergent stored in the liquid storage cylinder 32 through the spray cover component 31, so that the detergent can easily come into contact with and mix with the water in the sink 1, thereby creating foam on the water surface. This allows the bowls, plates, dishes, etc. placed on the dish rack 2 to fully contact the cleaning foam, thereby improving the cleaning effect.

[0038] Please see Figure 2 , Figure 3 and Figure 7 The spray cover 31 is fixedly installed at the bottom of the dish rack 2. The spray cover 31 includes an installation cylinder 311. A threaded connector 312 is fixed at the top of the installation cylinder 311. An installation head 21 is fixed at the bottom of the dish rack 2. The threaded connector 312 is threaded into the installation head 21, so that the spray cover 31 can be removed from the bottom of the dish rack 2 for easy cleaning. A cover plate 313 is fixed at the bottom of the installation cylinder 311. The cover plate 313 has windows 3131 distributed in a ring around the installation cylinder 311. When the pressure in the liquid storage cylinder 32 increases, the detergent in the liquid storage cylinder 32 can be squeezed out through the windows 3131. A seepage net 3132 is fixed in the window 3131, which can make the detergent more evenly dispersed. At the same time, it is easy to mix with water through the mesh of the seepage net 3132 to generate foam, increasing the amount of foam.

[0039] Please see Figure 4 , Figure 5 and Figure 6The liquid storage cylinder 32 is fixedly installed at the bottom of the spray cover 31. The top inner side of the liquid storage cylinder 32 is provided with an internal thread that is threaded to the cover plate 313. The liquid storage cylinder 32 and the cover plate 313 can be disassembled to facilitate cleaning of the cover plate 313 and the inside of the liquid storage cylinder 32, as well as adding detergent into the liquid storage cylinder 32. A water inlet pipe 321 communicating with the inner cavity of the liquid storage cylinder 32 is fixed to one side of the top of the liquid storage cylinder 32. A one-way valve 3211 is provided on the water inlet pipe 321. The flow direction of the one-way valve 3211 is towards the liquid storage cylinder 32. When the hydraulic jet 35 slides upward and compresses the detergent in the reservoir 32, the detergent can only be squeezed outward through the window 3131 on the cover plate 313 due to the action of the one-way valve 3211. When the hydraulic jet 35 slides downward, under the action of negative pressure, part of the external water flows back to the reservoir 32 through the window 3131, and the other part flows back to the reservoir 32 through the water inlet pipe 321, so that the detergent and water in the reservoir 32 are premixed to facilitate subsequent foaming.

[0040] Please see Figure 4 and Figure 5 The motor 33 is fixed inside the spray cover 31, and the inner rotating component 34 is rotatably disposed inside the liquid storage cylinder 32 and rotates under the drive of the motor 33. The inner rotating component 34 includes a column 341. The output shaft of the motor 33 passes through the mounting cylinder 311 and the rubber plug 352 and is fixedly connected to the column 341. Two spirally arranged protrusions 342 are provided on the cylindrical surface of the column 341. When the motor 33 is working, it can drive the column 341 to rotate inside the liquid storage cylinder 32.

[0041] Please see Figure 4 and Figure 6 The hydraulic jetting component 35 is slidably disposed within the liquid storage cylinder 32 and slides up and down within the liquid storage cylinder 32 in coordination with the rotation of the inner rotating component 34. The hydraulic jetting component 35 includes a sliding sleeve 351, with a rubber stopper 352 slidably disposed within the liquid storage cylinder 32 fixed to the top of the sliding sleeve 351. Symmetrically distributed guide blocks 322 are provided in the middle of the inner side of the liquid storage cylinder 32. The rubber stopper 352 has locking slots 353 on both sides that engage with the guide blocks 322. Rollers 354 are symmetrically arranged on both sides of the sliding sleeve 351. One end of roller 354 is rotatably connected to the sliding sleeve 351, and the other end of roller 354 extends into the sliding sleeve 351 and is fixed with a guide wheel 355. A return spring 36 is disposed inside the liquid storage cylinder 32 and elastically connects the hydraulic jet component 35 to the liquid storage cylinder 32. The return spring 36 is sleeved on the outside of the sliding sleeve 351, and both ends of the return spring 36 are fixed to the bottom surface of the rubber stopper 352 and the bottom inner wall of the liquid storage cylinder 32, respectively. Under the elastic force of the return spring 36, the guide wheel 355 abuts against the upper surface of the protrusion 342. Figure 5As shown, during the clockwise rotation of the column 341, the protrusion 342 presses against the guide wheel 355, causing the sliding sleeve 351 to drive the rubber plug 352 to slide upward against the elastic force of the return spring 36. When the column 341 continues to rotate until the protrusion 342 and the guide wheel 355 are misaligned, the rubber plug 352 slides downward under the weight of the rubber plug 352 and the sliding sleeve 351 and the elastic force of the return spring 36.

[0042] Please see Figure 1 The sink 1 includes an outer basin 11 and an inner basin 12 fixed inside the outer basin 11. A gap is left between the outer basin 11 and the inner basin 12 to form a drain cavity 13. An overflow hole 12 communicating with the drain cavity 13 is opened on one side of the top of the inner basin 12. When the water inside the inner basin 12 reaches the height of the overflow hole 12, the water can enter the drain cavity 13 through the overflow hole 12 to prevent leakage. The drain pipe 4 includes a main pipe 41 and a branch pipe 43 fixed to the bottom of the sink 1. The main pipe 41 is connected to the bottom cavity of the inner tank 12. The top inner side of the main pipe 41 is filled with a pressure plug 42. The top opening of the main pipe 41 can be opened by manually pulling out the pressure plug 42, so that the water in the inner tank 12 can be discharged through the main pipe 41. One end of the branch pipe 43 is connected to the bottom cavity of the drainage chamber 13, and the other end of the branch pipe 43 is connected to the main pipe 41. The water in the drainage chamber 13 can flow into the main pipe 41 through the branch pipe 43, and then into the household's sewer pipe through the main pipe 41.

[0043] The working principle and usage process of this invention are as follows: Before use, the detergent can be filled into the liquid storage cylinder 32 above the rubber stopper 352, and the assembled foaming device 3 can be installed on the mounting head 21 at the bottom of the dish rack 2. Water can be poured into the inner tank 12 through the faucet, so that the water flows over the foaming device 3 (compared to the prior art, the water consumption is smaller, achieving the effect of water conservation). Figure 5 As shown, when the motor 33 is turned on, the column 341 rotates clockwise inside the liquid storage cylinder 32. During the rotation of the column 341, the protrusion 342 squeezes the guide wheel 355, which causes the sliding sleeve 351 to drive the rubber stopper 352 to slide upward against the elastic force of the return spring 36. The rubber stopper 352 then compresses the detergent stored in the liquid storage cylinder 32. Due to the action of the one-way valve 3211, the detergent can only be squeezed outward through the window 3131 on the cover plate 313. The detergent is more evenly dispersed through the permeation net 3132 in the window 3131, making it easier for the detergent to mix with water through the mesh of the permeation net 3132 and foam, thus increasing the amount of foam.

[0044] When the column 341 continues to rotate until the protrusion 342 and the guide wheel 355 are misaligned, under the weight of the rubber stopper 352 and the sliding sleeve 351 and the elastic force of the return spring 36, the rubber stopper 352 slides downward. Then, under the negative pressure in the liquid storage cylinder 32, part of the external water flows back to the liquid storage cylinder 32 through the window 3131, and the other part flows back to the liquid storage cylinder 32 through the water inlet pipe 321. Under the countercurrent of water and detergent in two directions, the detergent and water in the liquid storage cylinder 32 can be premixed to facilitate subsequent foaming.

[0045] The continuous rotation of the column 341 allows the detergent in the liquid storage cylinder 32 to easily come into contact with and mix with the water in the sink 1, thus creating foam on the surface of the water. This facilitates full contact between the bowls, plates, dishes, etc., placed on the dish rack 2 and the cleaning foam, thereby improving the cleaning effect on the tableware by utilizing sufficient cleaning foam.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-foaming dishwasher, comprising a dishwasher (1) and a drain pipe (4) disposed at the bottom of the dishwasher (1), characterized in that, The inner side of the sink (1) is provided with a protrusion (14), on which a dish rack (2) is placed. The bottom of the dish rack (2) is equipped with a foaming device (3), which includes: A spray cover (31) is fixedly installed at the bottom of the dish rack (2); the spray cover (31) includes a mounting cylinder (311), a threaded connector (312) is fixed at the top of the mounting cylinder (311), a mounting head (21) is fixed at the bottom of the dish rack (2), the threaded connector (312) is threadedly installed in the mounting head (21), a cover plate (313) is fixed at the bottom of the mounting cylinder (311), and the cover plate (313) has windows (3131) arranged in a ring around the mounting cylinder (311). A liquid storage cylinder (32) is fixedly installed at the bottom of the spray cover (31); the top inner side of the liquid storage cylinder (32) is provided with an internal thread that is threadedly connected to the cover plate (313); a water inlet pipe (321) communicating with the inner cavity of the liquid storage cylinder (32) is fixed on one side of the top of the liquid storage cylinder (32); and symmetrically distributed guide blocks (322) are provided in the middle of the inner side of the liquid storage cylinder (32). The motor (33) is fixed inside the jet cover (31); The inner rotating assembly (34) is rotatably disposed inside the liquid storage cylinder (32) and rotates under the drive of the motor (33); the inner rotating assembly (34) includes a column (341) with two spirally arranged protrusions (342) on the cylindrical surface of the column (341). A hydraulic jetting component (35) is slidably disposed inside a liquid storage cylinder (32) and slides up and down inside the liquid storage cylinder (32) in coordination with the rotation of the inner rotating component (34). The hydraulic jetting component (35) includes a sliding sleeve (351). A rubber plug (352) is fixedly disposed on the top of the sliding sleeve (351) and slidably disposed inside the liquid storage cylinder (32). The output shaft of the motor (33) passes through the mounting cylinder (311) and the rubber plug (352) and is fixedly connected to the column (341). The rubber plug (352) has slots (353) on both sides that engage with the guide block (322). Rollers (354) are symmetrically disposed on both sides of the sliding sleeve (351). One end of the roller (354) is rotatably connected to the sliding sleeve (351), and the other end of the roller (354) extends into the sliding sleeve (351) and is fixed with a guide wheel (355). A reset spring (36) is installed inside the liquid storage cylinder (32) and elastically connects the hydraulic jet component (35) to the liquid storage cylinder (32). The reset spring (36) is sleeved on the outside of the sliding sleeve (351). The two ends of the reset spring (36) are fixed to the bottom surface of the rubber stopper (352) and the bottom inner wall of the liquid storage cylinder (32), respectively. The guide wheel (355) abuts against the upper surface of the protrusion (342) under the elastic force of the reset spring (36).

2. The self-foaming dishwasher sink according to claim 1, characterized in that, A seepage net (3132) is fixed inside the window (3131).

3. A self-foaming dishwasher according to claim 1, characterized in that, A one-way valve (3211) is provided on the water inlet pipe (321), and the flow direction of the one-way valve (3211) is from the outside of the liquid storage cylinder (32) to the inside of the liquid storage cylinder (32).

4. The self-foaming dishwasher sink according to claim 1, characterized in that, The sink (1) includes an outer tank (11) and an inner tank (12) fixed inside the outer tank (11). A gap is left between the outer tank (11) and the inner tank (12) to form a drain cavity (13). An overflow hole (121) communicating with the drain cavity (13) is opened on one side of the top of the inner tank (12).

5. A self-foaming dishwasher according to claim 4, characterized in that, The drain pipe (4) includes a main pipe (41) and a branch pipe (43) fixed to the bottom of the sink (1). The main pipe (41) is connected to the bottom cavity of the inner tank (12). The top inner side of the main pipe (41) is filled with a pressure plug (42). One end of the branch pipe (43) is connected to the bottom cavity of the drain cavity (13), and the other end of the branch pipe (43) is connected to the main pipe (41).

Citation Information

Patent Citations

  • Dishwasher and dishwasher control method

    CN107960970A

  • Automatic ship washing equipment based on ultrahigh pressure water technology

    CN113830248A