A hole-free single-barrel washing machine

Abstract

The present invention relates to a non-hole single-barrel washing machine, comprising a housing, a driving system, a pulsator and a non-hole washing barrel; a bottom plate is arranged at the bottom of the non-hole washing barrel; a driving system is arranged below the bottom plate, the driving system comprises a pulsator shaft and a motor, the pulsator shaft passes through the non-hole washing barrel and the bottom plate, and is connected to the motor shaft of the motor; the pulsator is fixedly connected to the pulsator shaft, and the non-hole washing barrel is hollowly sleeved on the pulsator shaft; the non-hole washing barrel also comprises a flange, a pulsator stop pin and a flange stop pin, the flange is fixedly arranged at the bottom of the non-hole washing barrel, the pulsator stop pin is arranged at the bottom of the pulsator, and the flange stop pin is arranged on the flange; a drain port is arranged on the bottom plate; and a limiting device is arranged at the lower end of the non-hole washing barrel. The non-hole single-barrel washing machine provided by the present invention can not only prevent secondary pollution, protect the skin, but also save water resources, and at the same time, due to the reduction of the use of the outer drum, the overall size of the washing machine can be reduced, and the production cost can be reduced.

Description

Technical Field

[0001] The invention belongs to the field of washing machines, and specifically provides a hole-free single-tub washing machine. Background Art

[0002] Most of the pulsator washing machines on the market currently include an inner barrel and an outer barrel. The inner barrel has holes. Washing water flows between the inner barrel and the outer barrel through these holes, which will cause the following problems: (1) Waste of water resources: The water between the inner and outer barrels does not participate in washing; (2) Secondary pollution: Dirt and bacteria will remain inside the gap between the inner and outer barrels, causing secondary pollution of the washing water and may also harm skin health. In response to the above problems, the inner barrel of the washing machine is designed to be non-porous, which not only saves water resources, but also ensures that the sewage in the outer barrel does not enter the inner barrel. This is one of the current research directions of water-saving and environmental protection technology for pulsator washing machines.

[0003] In addition, since both the inner and outer barrels are used at the same time, the overall size of the washing machine is relatively large, which is not conducive to reducing production costs.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a hole-free single-barrel washing machine, which only has a hole-free inner barrel, which not only saves water resources and prevents secondary pollution, but also helps to reduce the overall size of the washing machine and reduce production costs because no outer barrel is used.

[0006] The present invention is achieved through the following technical solutions:

[0007] A holeless single-tub washing machine comprises a casing, a driving system, a impeller and a holeless washing tub; a top cover and a base are provided on the top and bottom of the casing respectively; the holeless washing tub is arranged inside the casing, and a bottom plate is provided at the lower part of the holeless washing tub; a driving system is provided below the bottom plate, and the driving system comprises an impeller shaft and a motor, the impeller shaft passes through the holeless washing tub and the bottom plate, and is connected to the motor shaft of the motor; the impeller is fixedly connected to the impeller shaft, the holeless washing tub is hollowly sleeved on the impeller shaft, and a limiting device is provided at the lower part of the holeless washing tub; it also comprises a flange, an impeller stop pin and a flange stop pin, the flange is fixedly arranged at the bottom of the holeless washing tub, the impeller stop pin is arranged at the bottom of the impeller, and the flange stop pin is arranged on the flange; a drain outlet is provided on the bottom plate.

[0008] Furthermore, it also includes a bearing and a water seal, and the non-porous washing bucket is hollowly sleeved on the impeller shaft through the bearing and the water seal.

[0009] Furthermore, during washing, when the rotation angle of the impeller is less than 360 degrees, the hole-free washing bucket does not move under its own weight, or is driven by the water flow to rotate at a low speed; during dehydration, the impeller rotates in one direction, so that the flange stop pin engages with the impeller stop pin.

[0010] Furthermore, a balancing ring is arranged on the upper part of the non-porous washing bucket, and water guide grooves are evenly arranged at the part where the balancing ring and the non-porous washing bucket are connected.

[0011] Furthermore, the water guide groove is in an inverted U shape.

[0012] Furthermore, a water-repellent rib is provided on the inner wall of the non-porous washing bucket.

[0013] Furthermore, a water seal is provided between the bottom plate and the impeller shaft.

[0014] Furthermore, the water seal is a bowl-shaped water seal, which consists of an outer ring with a fixed size, an inner ring with a fixed size and an elastic section between the two. The outer ring is embedded with an outer ring frame, and the inner ring is embedded with an inner ring frame. The inner ring fixing surface of the inner ring is fixedly mounted on the impeller shaft, and the outer ring fixing surface of the outer ring passes through the mounting hole in the middle of the bottom plate and is fixed in the mounting hole.

[0015] Furthermore, the middle part of the bottom plate is higher than the peripheral part, and the bottom of the non-porous washing bucket is also fixedly installed with one or more circles of annular ribs, the outer diameter of the middle raised part of the bottom plate is larger than the inner diameter of the annular ribs, and the upper part of the middle raised part of the bottom plate is located inside the annular ribs.

[0016] The advantages of this technical solution are: (1) the use of a non-porous washing tub avoids the retention of washing water between the inner tub and the outer tub, thereby avoiding secondary contamination of the laundry and saving water resources; (2) not using an outer tub is conducive to reducing the overall size of the washing machine and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the drawings of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a cross-sectional view of a first structure of a hole-free single-tub washing machine of the present invention;

[0019] Figure 2 It is a cross-sectional view of a second structure of a hole-free single-tub washing machine of the present invention;

[0020] Figure 3 It is a cross-sectional view of the driving system of the first structure of the hole-free single-tub washing machine of the present invention;

[0021] Figure 4 It is a cross-sectional view of the driving system of the second structure of the hole-free single-tub washing machine of the present invention;

[0022] Figure 5 It is a cross-sectional view of a bowl-shaped water seal of a hole-free single-tub washing machine of the present invention.

[0023] In order to further clearly illustrate the structure of the present invention and the connection relationship between the various components, the following figure numbers are given and explained:

[0024] 1-top cover, 2-balance ring, 3-water guide groove, 4-box, 5-holeless washing bucket, 6-pulsator, 7-flange, 8-mounting hole, 9-drive system, 10-drain outlet, 11-base, 12-support spring, 13-tension spring, 14-bottom plate, 15-ring rib, 16-bearing, 17-water seal, 18-flange stop pin, 19-pulsator stop pin.

[0025] 1001-pulsator shaft, 1002-bowl-shaped water seal, 1003-motor shaft, 1004-mounting plate, 1005-motor, 1006-tension spring mounting hole.

[0026] 1101 - outer ring fixing surface, 1102 - outer ring skeleton, 1103 - elastic section, 1104 - inner ring skeleton, 1105 - inner ring fixing surface.

[0027] Through the above-mentioned description of the accompanying drawings, combined with the embodiments of the present invention, the technical solution of the present invention can be more clearly understood and explained. DETAILED DESCRIPTION

[0028] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0029] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0030] It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0031] The present invention will be described in detail below through examples.

[0032] Embodiment 1:

[0033] like Figure 1 A non-hole single-barrel washing machine comprises a housing 4, a driving system 9, a pulsator 6 and a non-hole washing barrel 5. The top and bottom of the housing 4 are respectively provided with a top cover 1 and a base 11. The non-hole washing barrel 5 is concentrically mounted inside the housing 4. A bottom plate 14 is provided at the bottom of the non-hole washing barrel 5, which also functions as an outer barrel of the washing machine. The non-hole washing barrel 5 is concentric with the mounting hole 8 on the bottom plate 14. A driving system 9 is provided below the bottom plate 14. The middle part of the bottom plate 14 is higher than the peripheral part. A drainage port 10 is provided at a low position around the bottom plate 14 to facilitate the discharge of washing water.

[0034] A bowl-shaped water seal 1002 is fixedly installed between the bottom plate 14 and the impeller shaft 1001 to prevent water on the bottom plate 14 from flowing into the driving system 9 at the bottom of the bottom plate 14 .

[0035] The bottom of the non-porous washing bucket 5 is also fixedly installed with one or more circles of annular ribs 15. The outer diameter of the middle raised portion of the bottom plate 14 is larger than the inner diameter of the annular ribs 15. The upper part of the middle raised portion of the bottom plate 14 is located inside the annular ribs 15. The annular ribs 15 and the bottom of the bottom plate 14 form a sealing structure, which prevents water thrown onto the bottom plate 14 from flowing to the bowl-shaped water seal 1002 in the middle of the bottom plate 14 during dehydration, thereby providing double protection for the drive system 9.

[0036] A balancing ring 2 is installed on the top of the non-porous washing bucket 5, and water guide grooves 3 are evenly opened around it. The shape of the water guide groove 3 is an inverted U shape, so that when dehydrating, the water in the non-porous washing bucket 5 moves up along the bucket wall, and when it turns over the top of the non-porous washing bucket 5, it moves along the inner side of the inverted U-shaped water guide groove 3. Finally, when it leaves the water guide groove 3, the water flow direction tends to be downward, so as to prevent the water from directly hitting the side wall of the box body and generating noise.

[0037] The flange 7 is arranged at the bottom of the non-porous washing bucket 5, and the non-porous washing bucket 5, the flange 7 and the impeller shaft 1001 are fixedly connected and sealed. The impeller 6 is loosely sleeved on the impeller shaft 1001, and there is a clearance fit between the two, and they can rotate freely and move axially. The top of the impeller shaft 1001 is axially limited by the impeller screw and the large gasket to prevent the impeller from moving upward.

[0038] During washing, the impeller 6 moves upward under the action of buoyancy and leaves the bottom of the non-porous washing bucket 5. The non-porous washing bucket 5 rotates back and forth clockwise and counterclockwise driven by the impeller shaft 1001, and the impeller 6 lags behind the rotation of the non-porous washing bucket 5 due to its own resistance and the water flow. When the non-porous washing bucket 5 rotates back and forth quickly, the impeller 6 rotates passively to form a dislocated water flow to wash the clothes in the non-porous washing bucket 5. Water-repelling ribs can also be fixed on the side wall of the non-porous washing bucket 5 to increase the effect of the non-porous washing bucket 5 on the clothes.

[0039] During dehydration, the non-porous washing tub 5 rotates in one direction, the water flows upward along the tub wall, is discharged from the non-porous washing tub 5 from the water guide groove 3 at the top of the non-porous washing tub 5, is incorporated into the box body, and is discharged from the drain port 10 and the drain pipe at the bottom of the bottom plate 14. When the water in the non-porous washing tub 5 is small enough, the pulsator 6 is pressed on the bottom of the non-porous washing tub 5 under its own weight and the weight of the clothes, and rotates at high speed together with the non-porous washing tub 5.

[0040] Embodiment 2:

[0041] like Figure 2 A non-hole single-barrel washing machine comprises a housing 4, a driving system 9, a pulsator 6 and a non-hole washing barrel 5. The top and bottom of the housing 4 are respectively provided with a top cover 1 and a base 11. The non-hole washing barrel 5 is concentrically mounted inside the housing 4. A bottom plate 14 is provided at the bottom of the non-hole washing barrel 5, which also functions as an outer barrel of the washing machine. The non-hole washing barrel 5 is concentric with the mounting hole 8 on the bottom plate 14. A driving system 9 is provided below the bottom plate 14. The middle part of the bottom plate 14 is higher than the peripheral part. A drainage port 10 is provided at a low position around the bottom plate 14 to facilitate the discharge of washing water.

[0042] A bowl-shaped water seal 1002 is fixedly installed between the bottom plate 14 and the impeller shaft 1001 to prevent water on the bottom plate 14 from flowing into the driving system 9 at the bottom of the bottom plate 14 .

[0043] The bottom of the non-porous washing bucket 5 is also fixedly installed with one or more circles of annular ribs 15. The outer diameter of the middle raised portion of the bottom plate 14 is larger than the inner diameter of the annular ribs 15. The upper part of the middle raised portion of the bottom plate 14 is located inside the annular ribs 15. The annular ribs 15 and the bottom of the bottom plate 14 form a sealing structure, which prevents water thrown onto the bottom plate 14 from flowing to the bowl-shaped water seal 1002 in the middle of the bottom plate 14 during dehydration, thereby providing double protection for the drive system 9.

[0044] A balancing ring 2 is installed on the top of the non-porous washing bucket 5, and water guide grooves 3 are evenly opened around it. The shape of the water guide groove 3 is an inverted U shape, so that when dehydrating, the water in the non-porous washing bucket 5 moves up along the bucket wall, and when it turns over the top of the non-porous washing bucket 5, it moves along the inner side of the inverted U-shaped water guide groove 3. Finally, when it leaves the water guide groove 3, the water flow direction tends to be downward, so as to prevent the water from directly hitting the side wall of the box body and generating noise.

[0045] A steel sleeve is provided between the impeller shaft 1001 and the bowl-shaped water seal 1002. The impeller shaft 1001 is movably installed in the steel sleeve 1005 through a small water seal and a bearing. The impeller 6 is fixedly connected to the impeller shaft 1001 through a spline, and the non-porous washing bucket 5 is movably sleeved with the impeller shaft 1001 through a bearing 16 and a water seal 17. The axial movement of the non-porous washing bucket 5 is limited by the impeller screws, the large gasket and the steel sleeve, so that it has space for axial rotation. A flange 7 is fixedly provided at the bottom of the non-porous washing bucket 5, a impeller stop pin 19 is provided at the bottom of the impeller 6, and a flange stop pin 18 is provided on the flange 7. When the non-porous washing bucket 5 and the impeller 6 rotate one circle relative to each other, the impeller stop pin 19 and the flange stop pin 18 meet once.

[0046] During washing, when the rotation angle of the pulsator 6 is less than 360 degrees, the non-porous washing tub 5 does not move under its own weight, or is driven by the water flow to rotate at a low speed, forming a stirring washing mode.

[0047] During dehydration, the impeller 6 rotates in one direction, so that the impeller stop pin 19 engages with the flange stop pin 18, thereby driving the non-porous washing tub 5 to rotate together for dehydration.

[0048] Embodiment 3

[0049] like Figure 1-4As shown, the drive system 9 includes a pulsator shaft 1001, a motor shaft 1003, a mounting plate 1004 and a motor 1005, wherein the pulsator shaft 1001 is connected to the motor shaft 1003 through a gear reduction device; the mounting plate 1004 is fixedly connected to the outer shell of the motor 1005 concentrically, and a hole for the motor shaft 1003 to pass through is provided on the mounting plate 1004. A central gear is installed on the motor shaft 1003, and the inner gear ring is fixed together with the mounting plate 1004. The planetary gear set, the central gear and the inner gear ring constitute a planetary gear system, which has a deceleration effect. The lower end of the pulsator shaft 1001 is inserted into the spline slot hole in the planetary gear set and rotates with the planetary gear set. A bowl-shaped water seal 1002 is fixedly installed on the outer side of the pulsator shaft 1001 of the drive system 9 to prevent washing water from flowing into the drive system 9.

[0050] The drive system 9 is mounted on the base 11 at the bottom of the box body through an elastic support structure. The elastic support structure includes a longitudinal support structure arranged between the mounting plate 1004 and the base 14 and a transverse support structure arranged between the mounting plate 1004 and the bottom plate 14.

[0051] The longitudinal support structure includes a support spring 12, the axial direction of the support spring 12 is longitudinally arranged, and the support spring 12 is fixed through a screw hole arranged on the mounting plate 1004 and a spring seat arranged on the base 11. The longitudinal support structure can buffer the longitudinal vibration amplitude of the washing machine.

[0052] The transverse support structure includes a tension spring 13, the axial direction of the tension spring 13 is arranged transversely or obliquely, one end of the tension spring 13 is fixed to the tension spring mounting hole 1006 on the mounting plate 1004, and the other end is fixed to the bottom plate 14 or the box body 4, the position of the tension spring 13 at one end of the tension spring mounting hole 1006 is lower than the position of the other end, or the position of the tension spring 13 at one end of the tension spring mounting hole (1006) is at the same height as the position of the other end. The transverse support structure can buffer the transverse vibration amplitude of the washing machine.

[0053] The elastic support structure realizes the stabilization and noise reduction of the washing machine during dehydration operation, and the vibration reduction during the start and stop process of the dehydration motor. It has a simple structure, low manufacturing cost, simple assembly process, high reliability, and is conducive to promotion in the field of washing machine devices.

[0054] Embodiment 4

[0055] like Figure 5The bowl-shaped water seal 1002 is composed of an outer ring of fixed size and an inner ring of fixed size and an elastic section between the two. The outer ring is inlaid with an outer ring frame 1102, and the inner ring is inlaid with an inner ring frame 1104. The inner ring fixed surface 1105 of the inner ring is fixedly mounted on the steel sleeve outside the impeller shaft 1001, and the outer ring fixed surface 1101 of the outer ring passes through the mounting hole 8 in the middle of the bottom plate (14) and is fixed in the mounting hole 8. While the inner ring and the outer ring are sealed, the drive system can have sufficient axial and radial activity space. The bowl-shaped water seal has good sealing performance under the condition of high speed of the impeller washing machine, effectively preventing washing water from entering the drive system 9, thereby avoiding damage to the washing machine.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-hole single-tub washing machine, characterized in that: The invention comprises a housing (4), a driving system (9), a pulsator (6) and a non-porous washing bucket (5); the top and bottom of the housing (4) are respectively provided with a top cover (1) and a base; the non-porous washing bucket (5) is arranged inside the housing (4), and a bottom plate (14) is arranged at the bottom of the non-porous washing bucket (5); a driving system (9) is arranged below the bottom plate (14), and the driving system (9) comprises a pulsator shaft (1001) and a motor (1005); the pulsator shaft (1001) passes through the non-porous washing bucket (5) and the bottom plate (14), and is connected to a motor shaft (1003) of the motor (1005); the pulsator (6) is fixed to the pulsator shaft (1001). The non-porous washing bucket (5) is hollowly sleeved on the impeller shaft (1001), the non-porous washing bucket (5) can rotate axially but cannot slide axially, and a limiting device is arranged at the lower part of the non-porous washing bucket (5); it also includes a flange (7), an impeller stop pin (19) and a flange stop pin (18), the flange (7) is fixedly arranged at the bottom of the non-porous washing bucket (5), the impeller stop pin (19) is arranged at the bottom of the impeller (6), and the flange stop pin (18) is arranged on the flange (7), when the non-porous washing bucket (5) and the impeller (6) rotate relative to each other for one circle, the impeller stop pin (19) and the flange stop pin (18) meet once; and a drainage port (10) is arranged on the bottom plate (14); It also includes a bearing (16) and a water seal (17), and the non-porous washing bucket (5) is hollowly sleeved on the impeller shaft (1001) through the bearing (16) and the water seal (17); A water seal is provided between the bottom plate (14) and the impeller shaft (1001), and the water seal is a bowl-shaped water seal (1002); A steel sleeve is provided between the impeller shaft (1001) and the bowl-shaped water seal (1002); the impeller shaft (1001) is movably mounted in the steel sleeve via a small water seal and a bearing; the impeller (6) is fixedly connected to the impeller shaft (1001) via a spline; and the non-porous washing bucket (5) is movably mounted on the impeller shaft (1001) via a bearing (16) and a water seal (17); the axial movement of the non-porous washing bucket (5) is restricted by the impeller screw, the large gasket and the steel sleeve, so that the non-porous washing bucket (5) has space for axial rotation; During washing, when the rotation angle of the impeller (6) is less than 360 degrees, the non-porous washing bucket (5) does not move under its own weight, or is driven by the water flow to rotate at a low speed; during dehydration, the impeller (6) rotates in one direction, so that the flange stop pin engages with the impeller stop pin.

2. The hole-free single-tub washing machine according to claim 1, characterized in that: A balancing ring (2) is arranged on the upper part of the non-porous washing bucket (5), and water guide grooves (3) are evenly arranged at the part where the balancing ring (2) and the non-porous washing bucket (5) are connected.

3. The hole-free single-tub washing machine according to claim 2, characterized in that: The water guide groove (3) is in the shape of an inverted U.

4. The hole-free single-tub washing machine according to any one of claims 1 to 3, characterized in that: The inner wall of the non-porous washing bucket (5) is provided with water-repelling ribs.

5. The hole-free single-tub washing machine according to claim 1, characterized in that: The bowl-shaped water seal (1002) is composed of an outer ring with a fixed size, an inner ring with a fixed size, and an elastic section (1103) therebetween; an outer ring frame (1102) is embedded in the outer ring; an inner ring frame (1104) is embedded in the inner ring; an inner ring fixed surface (1105) of the inner ring is fixedly mounted on the impeller shaft (1001); and an outer ring fixed surface (1101) of the outer ring passes through a mounting hole (8) in the middle of the bottom plate (14) and is fixed in the mounting hole (8).

6. The hole-free single-tub washing machine according to claim 1, characterized in that: The middle part of the bottom plate (14) is higher than the peripheral part, and one or more circles of annular ribs (15) are fixedly installed on the bottom of the non-porous washing bucket (5). The outer diameter of the middle raised part of the bottom plate (14) is larger than the inner diameter of the annular rib (15), and the upper part of the middle raised part of the bottom plate (14) is located inside the annular rib (15).

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