Water suction pump with magnetic check valve and dish washing machine

Abstract

The water suction pump is provided with a water suction pump water inlet, a water outlet pump water outlet and a motor driving set, the water outlet end of the water suction pump water outlet is provided with the magnetic suction check valve, and the magnetic suction check valve comprises a magnetic suction check valve body connected with the water suction pump water outlet; the magnetic check valve mounting shell is arranged on the peripheral wall of the water outlet end of the water suction pump water outlet in a sleeving mode and used for being connected with the water inlet end of the magnetic check valve; the magnetic suction ring is embedded in the magnetic suction check valve mounting shell; the sealing cover is movably installed at the water outlet end of the magnetic check valve and used for stopping flowing washing water from returning, a water outlet of the water suction pump is sleeved with a cylindrical check valve installation shell, one side of the cylindrical installation opening is open, the other side of the cylindrical check valve installation shell is a movably closed water outlet, and the middle of the cylindrical check valve installation shell is a hollow cavity; the water outlet is provided with a magnetic attraction ring, and a circular iron block is arranged in the sealing cover and connected with the magnetic attraction ring in an attraction mode so that a better non-return effect can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, in particular to a dishwasher, and in particular to a dishwasher with a magnetic check valve drainage pump. Background Art

[0002] At present, with the improvement of economic level and quality of life, dishwashers, as a device for automatically cleaning tools and pots, have been used more and more widely in households. Existing dishwashers are mainly composed of an outer shell, an inner tank, a rack, a cleaning component and a drainage component, wherein the rack is used to hold tableware, pots, cooking utensils waiting to be washed, the cleaning component is used to spray water on the items to be washed placed on the rack, and the drainage component is used to discharge the cleaned washing water to achieve the effect of automatically cleaning the items to be washed placed on the rack.

[0003] The drainage assembly on the existing dishwasher is generally a drainage pump structure, which is arranged at the lowest horizontal position inside the dishwasher. When the dishwasher is working, the drainage pump discharges the washing water in the dishwasher from the bottom of the dishwasher to the outside, so as to achieve the effect of timely discharge of the washing water in the dishwasher after use.

[0004] However, the check valves used in the market generally rely on gravity or water pressure. Over time, the check valves may deform or their components may age, and their check effects may be significantly reduced. When backflow occurs, the backflow water may cause bacteria to grow.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a water pump and a dishwasher with a magnetic suction valve to achieve the purpose of reliable sealing and backflow prevention of the water pump.

[0007] In order to achieve the above-mentioned invention object, the specific scheme adopted by the present invention is as follows:

[0008] A water pump with a magnetic suction valve, the water pump is provided with a water inlet of the water pump, a water outlet of the water pump and a motor drive group, and a magnetic suction check valve is provided at the water outlet end of the water outlet of the water pump, characterized in that:

[0009] The magnetic check valve comprises a magnetic check valve body connected to the water outlet of the water pump;

[0010] The magnetic check valve installation shell is sleeved on the outer peripheral wall of the water outlet end of the water pump outlet and is used to connect with the water inlet end of the magnetic check valve;

[0011] The magnetic ring is embedded in the installation shell of the magnetic check valve;

[0012] The sealing cover is movably mounted on the water outlet end of the magnetic check valve to prevent the washing water from flowing through.

[0013] Furthermore, the water outlet sleeve of the water pump is provided with a barrel shape, one side of which is an open installation port, the other side of which is a movable and closable water outlet, and the middle part of which is a check valve installation shell with a hollow cavity.

[0014] Furthermore, a magnetic attraction installation groove is provided in the middle of the hollow cavity, extending along the inner circumference of the hollow cavity and recessed toward the installation opening, for installing the magnetic attraction ring.

[0015] Furthermore, a magnetic attraction ring embedded in the magnetic attraction mounting groove is provided in the middle of the hollow cavity, which is used for magnetic attraction of the sealing cover to achieve a better anti-return effect.

[0016] Furthermore, a sealing cover connecting protrusion is provided at the top of the water outlet and extends horizontally along the top of the water outlet toward the water flow direction of the water outlet, and is used for connection with the sealing cover.

[0017] Furthermore, the top end of the sealing cover connecting convex is provided with an upward vertical extension, and the extended end is freely provided with an extended convex flush with the outer periphery of the magnetic check valve for installation and embedding of the sealing cover.

[0018] Furthermore, fixed shielding strips are provided on both sides of the sealing cover connection protrusion and are distributed in an annular manner along the outer circumference of the water outlet and extend horizontally from the water outlet to the water outlet in the direction of water flow, so as to limit the sealing cover.

[0019] Furthermore, a sealing cover is provided at one side of the water outlet. The sealing cover is detachable and movable and is embedded in the magnetic mounting shell to prevent backflow of water pumped out by the water pump.

[0020] Furthermore, a plurality of circular iron blocks distributed along the magnetic annular magnetic track of the magnetic attraction ring are provided inside the sealing cover for magnetically mounting the sealing cover and the magnetic attraction ring.

[0021] Furthermore, a sealing cover mounting groove with a hollow middle is provided on the top of the sealing cover, which can be sleeved on the sealing cover connecting protrusion. The hollow portion of the sealing cover mounting groove is smaller than the top extension portion of the sealing cover connecting protrusion and larger than the extension portion of the sealing cover connecting protrusion, so that the sealing cover can be connected to the sealing cover connecting protrusion and will not fall off when being embedded in operation.

[0022] Furthermore, the present invention also provides a dishwasher equipped with a water suction pump having a magnetic check valve as described above.

[0023] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0024] 1. By arranging a magnetic check valve at the water outlet of the drainage pump, the closing of the drainage pump outlet is controlled, thereby achieving a significant technical progress of further checking the drainage pump outlet.

[0025] 2. In particular, by utilizing the above structure, a magnetic stop is set up on the basis of the inherent stop using the pressure of the reflux water, thereby achieving better and more rigorous stop, and solving the significant technical progress of the problem that some reflux water still flows back due to poor sealing caused by insufficient pressure.

[0026] 3. The magnetic check valve can solve the problems of poor sealing due to long-term aging of the check valve and the breeding of bacteria caused by the backflow of return water without changing most of the structure, which is a significant technological advancement to improve washing effects and reduce energy consumption.

[0027] At the same time, the invention has a simple structure, significant effects and is suitable for popularization and use.

[0028] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0030] Figure 1 It is a schematic diagram of the combination of the magnetic check valve and the water outlet of the water pump of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure decomposition of the magnetic check valve of the present invention;

[0032] Figure 3 It is a three-dimensional schematic diagram of the magnetic check valve of the present invention;

[0033] Figure 4 The present invention Figure 3 Schematic diagram of AA cross-section;

[0034] Figure 5 The present invention Figure 3 Schematic diagram of BB cross-section;

[0035] Figure 6 It is a schematic diagram of a water pump with a magnetic check valve and a dishwasher connected in series.

[0036] The main components in the figure are:

[0037] 100. Water pump; 101. Water inlet of water pump; 102. Water outlet of water pump; 103. Water inlet of dishwasher; 104. Washing component; 105. Motor drive group; 1. Magnetic check valve; 11. Water inlet of magnetic check valve; 112. Water outlet of magnetic check valve; 12. Hollow cavity; 13. Magnetic mounting groove; 131. Magnetic ring; 14. Sealing cover; 141. Round iron block; 142. Sealing cover mounting groove; 15. Sealing cover connecting cam; 151. Extension cam; 152. Fixed shielding strip.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0040] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

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

[0042] like Figures 1 to 6As shown, an embodiment of the present invention introduces a water pump and a dishwasher with a magnetic check valve, including a water pump 100 installed at the bottom of the dishwasher, a water pump water inlet 101 and a water pump water outlet 102 are provided on the water pump 100, the water pump water inlet 101 is connected to the dishwasher water inlet end 103, and the dishwasher water inlet end 103 is generally a user faucet; the water pump water outlet 102 is connected to the internal washing component 104 of the dishwasher, and is used to supply water to the internal washing component 104 of the dishwasher; the water pump 100 is also provided with a motor drive group 105, which is used to pressurize the washing water flowing through the water pump 100, so that the water pressure of the washing water discharged from the water pump water outlet 102 meets the washing water pressure use requirement of the washing component 104.

[0043] like Figure 1 As shown, the water outlet end of the water pump outlet 102 is sleeved with a magnetic check valve body 1, and the water inlet end 11 of the magnetic check valve is sleeved on the outer peripheral wall of the water pump outlet 102, and the inner wall of the water inlet end 11 of the magnetic check valve is tightly connected with the outer peripheral wall of the water pump outlet 102, so as to achieve that the flowing water will not leak from the connection between the water inlet end 11 of the magnetic check valve and the water pump outlet 102.

[0044] like Figures 2 to 5 As shown, in front of the water outlet 102 of the water pump, in the middle of the hollow cavity 12 of the magnetic check valve 1, there is a circle of magnetic mounting grooves 13 extending along the inside of the hollow cavity 12 and extending toward the central axis of the hollow cavity 12, and concave and convex toward the water outlet 102 of the water pump. A magnetic ring 131 is installed in the magnetic mounting groove 13, which is used to magnetically attract the circular iron block 141 in the sealing cover 14 so that the sealing cover 14 can be magnetically fixed by the magnetic ring 131; in front of the water outlet 102 of the water pump, at the top of one side of the water outlet 112 of the magnetic check valve, there is a circular sealing cover 14 corresponding to the water outlet 112 of the magnetic check valve, and the outer diameter of the sealing cover 14 is larger than the inner diameter of the water outlet 112 of the magnetic check valve, so as to achieve the purpose of making the water outlet 112 of the magnetic check valve completely in a closed state when in a closed state.

[0045] like Figures 2 to 5 As shown, in the embodiment of the present invention, a magnetic check valve 1 is sleeved at the water outlet 102 of the water pump. The magnetic check valve 1 is configured as a magnetic check valve water inlet end 11 with an open side, and a magnetic check valve water outlet 112 with a movable closure and detachable installation on the other side, and a hollow cylindrical hollow cavity 12 in the middle. The magnetic check valve water inlet end 11 is sleeved on the water outlet 102 of the water pump, so that the magnetic check valve water inlet end 11 and the water outlet 102 of the water pump are tightly fitted together, and the magnetic check valve 1 is tightly connected to the water pump 100.

[0046] like Figures 2 to 5As shown, in the embodiment of the present invention, a magnetic mounting groove 13 extending from the same vertical plane along the inner circumference of the inner wall of the hollow cavity 12 is provided in the middle of the hollow cavity 12 of the magnetic check valve, and the magnetic mounting groove 13 is configured to be an annular groove protruding toward the water outlet 102 of the water pump and concave from the water flow direction of the water outlet 102 of the water pump toward the water outlet 102 of the water pump;

[0047] like Figures 2 to 5 As shown, in the embodiment of the present invention, an annular groove of the magnetic mounting groove 13 is provided with an annular magnetic ring 131 corresponding to the magnetic mounting groove 13. The magnetic ring 131 can be embedded in the annular groove of the magnetic mounting groove 13, or can be bonded in the annular groove of the magnetic mounting groove 13 with adhesive glue or other adhesives.

[0048] like Figures 2 to 5 As shown, in the embodiment of the present invention, a sealing cover connecting clamping protrusion 15 is provided at the outer top end of the magnetic check valve water outlet 112, which extends horizontally along the outer side of the magnetic check valve water outlet 112 toward the water outlet direction of the magnetic check valve water outlet 112. An extension protrusion 151 is vertically extended upward from the top end of the extended end of the sealing cover connecting clamping protrusion 15. The top of the extended protrusion 151 at the top end of the extended end of the sealing cover connecting clamping protrusion 15 is flush with the same horizontal plane of the outer periphery of the magnetic check valve 1, forming a sealing cover connecting clamping protrusion 15 with a groove in the middle, one end of which is connected to the magnetic check valve water outlet 112 and clamped by the magnetic check valve water outlet 112, and the other end extends vertically upward. The extended end is freely provided with a sealing cover connecting clamping protrusion 15 clamped by an extension protrusion 151 flush with the outer periphery of the magnetic check valve 1, so as to achieve a clamping connection with the sealing cover 14, so that the sealing cover 14 is connected and fixed to the magnetic check valve 1, and the extension protrusion 151 clamps the sealing cover 14 to prevent it from falling off during use.

[0049] In the embodiment of the present invention, long strip-shaped fixed shielding strips 152 bent in the same direction as the outer periphery of the magnetic check valve 1 are arranged on both sides of the sealing cover connecting protrusion 15, and are used to further limit and fix the sealing cover 14. The fixed shielding strips 152 extend parallel to the water flow direction of the magnetic check valve outlet 112, and the extended ends are freely arranged, forming two symmetrically distributed eaves-like curved long strip-shaped fixed shielding strips 152 on the upper side of the sealing cover 14 for limiting and shielding the sealing cover 14.

[0050] like Figures 2 to 5As shown, in the embodiment of the present invention, a circular sealing cover 14 is provided at the water outlet 112 of the magnetic check valve. The sealing cover 14 is made of a flexible material that can produce deformation restoration, such as a flexible deformable restoration material such as rubber material. The sealing cover 14 is connected to the sealing cover connecting protrusion 15 via a sealing cover mounting groove 142, so that the sealing cover 14 is connected to the water outlet 112 of the magnetic check valve. A plurality of circular iron blocks 141 are distributed and arranged along the magnetic position range of the magnetic attraction ring 131 inside the sealing cover 14, so that the circular iron blocks 141 in the sealing cover 14 can be magnetically attracted by the magnetic attraction ring 131 installed in the hollow cavity 12, thereby making the sealing cover 14 and the water outlet 112 of the magnetic check valve fit more closely together, further improving the sealing of the magnetic check valve outlet 112 by the sealing cover 14, and enhancing the significant technical progress of the check effect.

[0051] like Figures 2 to 5 As shown, in the embodiment of the present invention, a plurality of circular iron blocks 141 are provided at positions inside the sealing cover 14 corresponding to the magnetic attraction track range of the magnetic attraction ring 131 in the hollow cavity 12, the sealing cover 14 is coaxially arranged with the magnetic attraction ring 131, and the circular iron blocks 141 are evenly arranged and distributed around the center line of the axis along the magnetic attraction track of the magnetic attraction ring 131, and the number of the circular iron blocks 141 inside the sealing cover 14 is at least three or more to ensure that the sealing cover 14 can be tightly fitted with the water outlet 112 of the magnetic check valve under the influence of magnetic attraction, so as to avoid uneven fit between the sealing cover 14 and the water outlet 112 of the magnetic check valve due to uneven force, thereby resulting in poor sealing and affecting the check effect.

[0052] like Figures 2 to 5 As shown, in the embodiment of the present invention, the top of the sealing cover 14 is provided with a long sealing cover mounting groove 142 that runs through the front and back of the sealing cover. The sealing cover mounting groove 142 is arranged corresponding to the sealing cover connecting protrusion 15. The sealing cover 14 is connected to the water outlet 112 of the magnetic check valve via the sealing cover mounting groove 142 and the sealing cover connecting protrusion 15, so that the sealing cover 14 can be movably connected to the water outlet 112 of the magnetic check valve. The inner diameter of the sealing cover mounting groove 142 is smaller than the vertical cross-sectional size of the extension protrusion 151, so that the extension protrusion 151 can be fully tightened to embed the sealing cover 14.

[0053] like Figure 6As shown, in the embodiment of the present invention, the user starts the working program of the dishwasher, and the dishwasher is supplied with water by the dishwasher water supply system. The washing water is pressurized and pumped by the motor drive group 105 of the water pump through the dishwasher water inlet end 103 and the water inlet 101 of the water pump, and flows out from the water outlet 102 of the water pump. When flowing through the magnetic suction check valve 1, the sealing cover 14 is impacted. The sealing cover 14 is deformed by the water pressure force of the washing water flowing through it. The sealing cover 14 is separated from the water outlet 112 of the magnetic suction check valve, so that the washing water flowing through it can pass smoothly until the washing program ends. When the washing program of the dishwasher ends, the dishwasher water supply system stops supplying water, the water pressure of the water flowing through the magnetic suction check valve 1 is reduced, the sealing cover 14 is affected by the water pressure force of the flow path water, and the sealing cover 1 Affected by its own downward gravity and the magnetic attraction of the magnetic ring 131, it fits toward the water outlet 112 of the magnetic check valve, thereby sealing the water outlet 112 of the magnetic check valve and preventing the water flowing through it from flowing back, preventing the water flowing through it from flowing back due to the force of gravity and gravity after losing the subsequent water supply and the power support of the motor drive group 105 of the water pump 100, thereby effectively preventing the washing water from flowing back. The magnetic attraction of the magnetic ring 131 to the circular iron block 141 inside the sealing cover 14 makes the sealing cover 14 fit and seal more closely with the water outlet 112 of the magnetic check valve, preventing the sealing cover 14 from being deformed and unable to return to its natural position due to long-term use and aging, resulting in a significant technical progress of leaking and backflowing of backflow water caused by loose sealing.

[0054] In an embodiment of the present invention, a dishwasher is further provided. The dishwasher is provided with any of the water pumps 100 with the magnetic check valve 1 described above.

[0055] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A water pump with a magnetic check valve, the water pump (100) being provided with a water pump water inlet (101), a water pump water outlet (102) and a motor drive group (105); Features: A magnetic check valve (1) is provided at the water outlet (102) of the water pump; The water inlet end (11) of the magnetic check valve is sleeved on the outer peripheral wall of the water outlet end of the water pump outlet (102) and is used to connect the magnetic check valve (1) and the water pump (100); A magnetic ring (131) is embedded in the hollow cavity (111) of the magnetic check valve (1); The sealing cover (14) is movably mounted on the magnetic check valve water outlet (112) of the magnetic check valve (1) and is used to prevent the washing water from flowing through.

2. A water pump with a magnetic check valve according to claim 1, characterized in that: The water outlet (102) of the water pump is sleeved in a cylindrical shape, one side of which is an open magnetic check valve water inlet end (11), the other side of which is a movably closable magnetic check valve water outlet (112), and the middle part of which is a hollow cavity (111).

3. A water pump with a magnetic check valve according to claim 2, characterized in that: A magnetic attraction installation groove (13) extending along the inner circumference of the hollow cavity and recessed toward the installation opening is provided in the middle of the hollow cavity (111) for installing the magnetic attraction ring (131).

4. A water pump with a magnetic check valve according to claim 2, characterized in that: A magnetic attraction ring (131) embedded in a magnetic attraction installation groove (13) is provided in the middle of the hollow cavity, and is used for magnetically attracting a circular iron block (141) in the sealing cover (14).

5. A water pump with a magnetic check valve according to claim 2, characterized in that: A sealing cover connecting protrusion (15) is provided at the top of the magnetic check valve water outlet (112) and extends horizontally along the top of the magnetic check valve water outlet (112) toward the water flow direction of the magnetic check valve water outlet (112); The top end of the sealing cover connecting clamping protrusion (15) is provided with an extending protrusion (151) extending vertically upwards, and the extending end is freely provided with an extending protrusion (151) flush with the outer periphery of the magnetic suction check valve, which is used for mounting and clamping the sealing cover (14).

6. A water pump with a magnetic check valve according to claim 5, characterized in that: Fixed shielding strips (152) are provided on both sides of the sealing cover connection protrusion (15) and are distributed annularly along the outer circumference of the water outlet and extend horizontally from the water outlet to the water outlet in the direction of water flow, and are used to limit the sealing cover (14).

7. A water pump with a magnetic check valve according to any one of claims 2 to 6, characterized in that: A sealing cover (14) is provided on one side of the water outlet (112) of the magnetic check valve, and the sealing cover (14) is detachably mounted and embedded with the water outlet (112) of the magnetic check valve.

8. A water pump with a magnetic check valve according to claim 7, characterized in that: A plurality of circular iron blocks (141) are arranged inside the sealing cover (14) and are distributed along the magnetic annular magnetic attraction track of the magnetic attraction ring (131) for magnetically assembling the sealing cover (14) and the magnetic attraction ring (131).

9. A water pump with a magnetic check valve according to claim 7, characterized in that: A sealing cover installation groove (142) with a hollow center is provided on the top of the sealing cover (14), which can be sleeved on the sealing cover connecting protrusion (15); the hollow portion of the sealing cover installation groove (142) is smaller than the top extension portion of the sealing cover connecting protrusion (15), and larger than the extension protrusion (151) of the sealing cover connecting protrusion (15).

10. A dishwasher, characterized in that: A water suction pump (100) having a magnetic check valve (1) as claimed in any one of claims 1 to 9 is installed.

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