Portable washing apparatus

Abstract

A portable washing apparatus is provided. It includes a washing tub having an open end and a pulsator rotatably disposed on a bottom wall of the washing tub, a dewatering tub removably inserted into the washing tub and having dewatering holes distributed open, and a tub cover configured to openably cover the open end, an inner side surface of the tub cover toward an inside of the washing tub being fitted with a plurality of rollable units spaced apart from each other, an open edge of the dewatering tub abutting against the plurality of rollable units during a dewatering process, and a bottom wall of the dewatering tub being fitted with the pulsator and forming an axial space therebetween, such that rotation of the pulsator drives the dewatering tub to rotate relative to the washing tub to perform dewatering. The portable washing apparatus is capable of high-speed rotation for the purpose of dewatering while significantly reducing its volume by the dewatering tub abutting against the rollable units on the tub cover and forming the axial space between the bottom wall of the dewatering tub and the pulsator during dewatering, thereby facilitating portability and handling.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of washing equipment, and particularly provides a portable washing equipment. BACKGROUND

[0002] Washing equipment is one of the common household appliances, such as a drum washing machine or a pulsator washing machine. The size of the household washing equipment is often large, and can wash multiple clothes at a time, meeting the needs of people's home life. However, for small items of underwear, underpants or socks, it is necessary to wash them separately and wash them frequently. If such a large washing equipment is used every time, it will cause waste of resources. At the same time, for users who need to go on business trips or rent houses, the living environment often changes, and the traditional washing equipment is too large in size, which will bring a lot of inconvenience during the moving process. Although hotels or rental areas are provided with public washing equipment, there is a safety problem of cross-infection of bacteria when using such washing equipment. Therefore, a small washing equipment which is convenient to carry and move is needed to solve the above problems.

[0003] For this reason, a portable washing equipment has been developed in the prior art. For example, Chinese patent application CN112442823A discloses a small portable intelligent variable frequency washing machine. The small portable intelligent variable frequency washing machine includes a shell, a bottom plate is arranged at the bottom of the shell, and the bottom plate is fixedly connected with the shell; a shell cover is arranged at the top of the shell, and the shell cover is movably connected with the shell; the shell includes a washing area and a control area, a pulsator is arranged at the lower part of the washing area, and the pulsator is connected with a variable frequency motor; a shell-separated dehydration basket is arranged in the washing area. In order to perform dehydration, the dehydration basket is inserted into the insertion hole on the convex strip of the pulsator through the insertion block on the bottom of the dehydration basket to form a fixed connection with the pulsator, and a large axial gap is reserved between the top of the dehydration basket and the shell cover. The pulsator generates a large noise during high-speed rotation due to unbalanced distribution of the mass of the clothes and other reasons, and thus generates a large noise. In addition, a large axial gap is reserved between the top of the dehydration basket and the shell cover, resulting in low utilization rate of the dehydration space of the washing machine. Therefore, the technical solution needs to be improved.

[0004] Correspondingly, there is a need in the art for a new technical solution to solve the above technical problems. SUMMARY

[0005] To solve the technical problems of large vibration, loud noise and low utilization rate of dehydration space of the existing portable washing equipment, the present application provides a portable washing equipment. The portable washing equipment comprises a washing drum having an open end and a pulsator rotatably arranged on a bottom wall of the washing drum; a dehydration drum capable of being removably inserted into the washing drum and having distributed dehydration holes; and a drum cover configured to be capable of openably covering the open end, an inner side of the drum cover toward an inside of the washing drum being fitted with a plurality of rollable units spaced from each other, an open edge of the dehydration drum abutting against the plurality of rollable units during a dehydration process, and a bottom wall of the dehydration drum being fitted with the pulsator and forming an axial space therebetween, such that rotation of the pulsator drives the dehydration drum to rotate relative to the washing drum for dehydration.

[0006] The inner side of the drum cover of the portable washing equipment of the present application toward the inside of the washing drum is fitted with a plurality of rollable units spaced from each other, which are capable of freely rotating around their own axes. During the dehydration of the portable washing equipment, the open edge of the dehydration drum directly abuts against the rollable units, and the rotation of the dehydration drum can drive the rollable units to rotate around their own axes, so that the dehydration drum is more easily rotated relative to the drum cover by means of the rollable units, while the drum cover can limit the dehydration drum from jumping or shaking together with the pulsator, thereby reducing the noise of the portable washing equipment. In addition, the dehydration drum abuts against the drum cover through the rollable units to increase the internal dehydration space, i.e., the washing space between the pulsator and the inner side of the drum cover can be used for dehydration. Therefore, compared with the existing portable washing equipment, the volume of the portable washing equipment of the present application is significantly reduced under the condition of having the same dehydration space, thereby being more convenient to carry and transport. The axial space formed between the bottom wall of the dehydration drum and the pulsator can be used to store washing water flung out from the clothes during the dehydration process.

[0007] In the preferred technical solution of the above portable washing equipment, each of the rollable units comprises a fixed shaft mounted on the inner side of the drum cover and a roller or bearing capable of rotating around the fixed shaft. Through the above configuration, the drum cover is covered on the open end when dehydration is needed, at which time the outer ring surface of the roller or bearing is in contact with the open edge of the dehydration drum and limits the upper end of the dehydration drum. During the dehydration process, the dehydration drum is driven by the pulsator to rotate at high speed, the open upper edge of the dehydration drum abuts against the roller or bearing, and then the roller or bearing rotates with the rotation of the dehydration drum. The roller or bearing and the open edge of the dehydration drum maintain rolling friction during the process. This structure can effectively reduce the friction between the dehydration drum and the drum cover while ensuring stable limitation of the dehydration drum, so as to realize long-time and stable high-speed rotation of the dehydration drum.

[0008] In the preferred technical scheme of the portable washing device, a plurality of water blocking protrusions are arranged on the inner circumferential surface of the cylinder wall of the washing cylinder and are spaced from each other in the circumferential direction, and a predetermined gap is left between each water blocking protrusion and the outer circumferential surface of the cylinder wall of the dewatering cylinder when the dewatering cylinder is inserted into the washing cylinder. Through the above configuration, the water blocking protrusions can limit the cylinder wall of the dewatering cylinder during the dewatering process, avoiding lateral tilting or deflection of the dewatering cylinder during high-speed rotation, so that the dewatering cylinder can always rotate stably around its own center line.

[0009] In the preferred technical scheme of the portable washing device, each water blocking protrusion extends along the height of the washing cylinder and includes first and second water blocking surfaces opposite to each other. Through the above configuration, during the washing process, the impeller agitates the washing water to form a washing vortex, and the water blocking protrusions can change the flow direction of the washing water, so that part of the washing water impacts from the edge of the washing vortex to the center of the washing vortex, and then impacts and cleans the clothes, thereby improving the cleaning effect.

[0010] In the preferred technical scheme of the portable washing device, each water blocking protrusion has a substantially triangular cross section along the radial direction of the washing cylinder. Through the above configuration, the first and second water blocking surfaces are substantially obtusely intersected with the inner circumferential surface of the washing cylinder wall, which can change the flow direction of the washing water and will not excessively hinder the washing force of the washing water, thereby realizing powerful cleaning in multiple directions.

[0011] In the preferred technical scheme of the portable washing device, the impeller includes a bottom disc and a plurality of blades arranged in the radial direction and spaced from each other formed on the bottom disc, and a plurality of clamping grooves respectively clamped with one of the plurality of blades are arranged on the outer surface of the bottom wall of the dewatering cylinder. Through the above configuration, the clamping grooves and the blades are matched and clamped, the bottom wall of the dewatering cylinder is matched and connected with the impeller, and the clamping grooves are firmly clamped on the blades through the rollable unit on the inner side of the cylinder cover pressing the dewatering cylinder, so that stable limiting is formed in the axial direction of the dewatering cylinder. During the dewatering process, the impeller is driven by the clamping of the blades and the clamping grooves to rotate synchronously with the dewatering cylinder.

[0012] In the preferred technical scheme of the portable washing device, each clamping groove is surrounded by two clamping legs extending outward from the outer surface of the bottom plate of the dewatering cylinder. Through the above configuration, the two clamping legs are respectively limited to be arranged on both sides of the blade, so that no matter which direction the impeller rotates, the clamping legs can effectively transmit the rotating power. At the same time, since the clamping legs extend outward from the outer surface of the bottom plate of the dewatering cylinder, an axial space with a certain height is formed between the bottom plate of the dewatering cylinder and the bottom disc of the impeller, and the washing water discharged during dewatering can be conveniently collected in the space, avoiding the washing water from wetting the clothes again.

[0013] In the preferred technical scheme of the portable washing device, a limiting column extending towards the opening end of the washing drum is arranged at the radial center of the pulsator, and a limiting hole matched with the limiting column is arranged on the bottom plate of the dehydration drum. Through the above configuration, the dehydration drum can be further limited, so that the dehydration drum rotates on the axis of the pulsator.

[0014] In the preferred technical scheme of the portable washing device, the portable washing device further comprises a heating chamber, the heating chamber comprises a bottom-sealed heating tray, the heating tray is fixed to the outer surface of the bottom wall of the washing drum and covered by the bottom wall of the washing drum, and the washing drum and the bottom plate of the pulsator are respectively provided with distributed flow guide holes, so that the heating chamber can be in fluid communication with the inside of the washing drum; and a heating device arranged in the heating tray. Through the above configuration, the washing water can circulate in the washing drum and the heating chamber, and the heating device can continuously heat the washing water, so that the washing water is maintained at a high temperature, thereby realizing the high-temperature washing function.

[0015] In the preferred technical scheme of the portable washing device, the portable washing device further comprises a housing, the washing drum is arranged in the housing, and a motor chamber for accommodating a driving motor is arranged between the heating chamber and the housing, and a driving shaft of the driving motor is rotatably fixedly connected with the pulsator through the heating chamber. Through the above configuration, the housing and the washing drum are designed separately, which can facilitate the assembly of the washing device, and can quickly change the style of the housing according to the user's preference, meeting the individual needs. BRIEF DESCRIPTION OF DRAWINGS

[0016] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0017] Figure 1 is a front view of an embodiment of the portable washing device of the present application;

[0018] Figure 2 is a top view of an embodiment of the portable washing device of the present application;

[0019] Figure 3 is a sectional view of an embodiment of the portable washing device of the present application taken along the A-A sectional line of Figure 2 ;

[0020] Figure 4 is a sectional view of an embodiment of the portable washing device of the present application shown in Figure 3 ;

[0021] Figure 5is a top view structural schematic diagram of the cooperation between the washing drum and the dehydration drum in the embodiment of the portable washing equipment of the present application;

[0022] Figure 6 is a cooperation schematic diagram of the drum cover, the dehydration drum and the pulsator in the embodiment of the portable washing equipment of the present application;

[0023] Figure 7 is a structural schematic diagram of the drum cover in the embodiment of the portable washing equipment of the present application.

[0024] List of reference signs:

[0025] 1, washing equipment; 11, drum cover; 111, cover body; 111a, outer side surface; 111b, inner side surface; 1111, sealing edge; 112, boss; 113, rolling unit seat; 114, rollable unit; 114a, rolling shaft; 114b, rolling wheel; 115, seat chamber; 116, fixing hole; 116a, first fixing hole part; 116b, second fixing hole part; 21, outer shell; 211, outer shell peripheral wall; 212, inner peripheral surface of the outer shell peripheral wall; 213, outer peripheral surface of the outer shell peripheral wall; 214, control button; 215, bottom wall of the outer shell; 31, washing drum; 311, washing drum peripheral wall; 312, inner peripheral surface of the washing drum peripheral wall; 313, outer peripheral surface of the washing drum peripheral wall; 314, water blocking boss; 3141, first water blocking surface; 3142, second water blocking surface; 3143, limiting surface; 315, first limiting ring; 316, second limiting ring; 317, assembly cavity; 318, bottom wall of the washing drum; 3181, rotating shaft through hole; 3182, flow guide hole on the bottom wall of the washing drum; 319, open end of the washing drum; 320, drain pipe; 41, dehydration drum; 411, dehydration drum peripheral wall; 412, dehydration hole on the dehydration drum; 413, bottom wall of the dehydration drum; 4131, limiting hole; 414, clamping groove; 4141, first clamping leg; 4142, second clamping leg; 415, open edge of the dehydration drum; 51, pulsator; 511, bottom disc of the pulsator; 512, flow guide hole on the bottom disc of the pulsator; 513, blade of the pulsator; 514, center column; 515, rotating shaft fixing hole; 516, limiting column; 61, heating chamber; 611, heating tray; 6111, ring wall of the heating tray; 6112, bottom wall of the heating tray; 6113, rotating shaft sealing hole; 612, heating device; 71, driving motor; 711, driving rotating shaft; 712, motor base. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0027] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship of "upper", "lower", "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, it should be further pointed out that in the description of the present application, unless otherwise explicitly specified and limited, the terms "assembly", "arrangement", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In order to solve the technical problems of large vibration, large noise and low utilization rate of dehydration space of the existing portable washing equipment, the present application provides a portable washing equipment 1. The portable washing equipment 1 comprises a washing drum 31, the washing drum 31 has an open end 319 and an impeller 51 rotatably arranged on the bottom wall 318 of the washing drum 31; a dehydration drum 41, the dehydration drum 41 can be removably inserted into the washing drum 31 and has distributed dehydration holes 412; and a drum cover 11, the drum cover 11 is configured to be able to openably cover the open end 319, a plurality of rollable units 114 are assembled on the inner side 111b of the drum cover 11 facing the inside of the washing drum 31, the open edge 415 of the dehydration drum 41 abuts against the plurality of rollable units 114 during the dehydration process, and the bottom wall 413 of the dehydration drum 41 is matched with the impeller 51 and an axial space is formed therebetween, so that the rotation of the impeller 51 drives the dehydration drum 41 to rotate relative to the washing drum 31 to perform dehydration.

[0030] The above-mentioned "the tub cover 11 is configured to be able to openably cover the open end 319" includes that the tub cover 11 is rotatably fixed on the housing 21 or the washing tub 31 to open or close the open end 319, or the tub cover 11 is separated from the housing 21 or the washing tub 31, and is put on the open end 319 when the open end 319 needs to be closed, and is directly taken off from the open end 319 when the open end 319 needs to be opened. Specifically, in the case that the tub cover 11 is rotatably fixed on the housing 21 or the washing tub 31, the tub cover 11 can be formed in a flip cover structure, for example, in a hinge connection manner, so that the tub cover 11 can be covered on or moved away from the open end 319 by rotating around the shaft. The above-mentioned "the rollable unit 114" has various specific forms, including but not limited to a form of a shaft cooperating with a roller, or a form of a rotating groove cooperating with a ball, or a form of a rotating groove cooperating with a rolling column, or other suitable rolling forms, as long as the open edge 415 of the dehydration tub 41 can keep rolling contact with the rollable unit 114 when the dehydration tub 41 rotates.

[0031] Figure 1 is a front view of an embodiment of the portable washing apparatus of the present application; Figure 2 is a top view of an embodiment of the portable washing apparatus of the present application; Figure 3 is a sectional view of an embodiment of the portable washing apparatus of the present application taken along the A-A sectional line of Figure 2 ; Figure 4 is a sectional view of an embodiment of the portable washing apparatus of the present application taken along the B-B sectional line of Figure 3 ; Figures 1-4 is a sectional view of an embodiment of the portable washing apparatus of the present application taken along the C-C sectional line of Figure 3 ; Figure 4As shown, the washing drum 31 is arranged in the housing 21; the drum cover 11 is openably covered on the open end 319 of the washing drum 31; the pulsator 51 is arranged in the washing drum 31 and located on the bottom wall 318 of the washing drum 31; the heating chamber 61 is arranged at the bottom of the washing drum 31 and located on the outer side of the bottom wall 318 of the washing drum 31; a motor chamber is provided between the heating chamber 61 and the bottom wall 215 of the housing 21, the driving motor 71 is arranged in the motor chamber and located below the heating chamber 61, the driving shaft 711 of the driving motor 71 extends upward along the central axis of the washing drum 31 and sequentially passes through the bottom wall 318 of the washing drum 31 and forms a fixed connection with the pulsator 51. The washing drum 31, the pulsator 51, the heating chamber 61, and the driving motor 71 are all arranged in the housing 21. The dehydration drum 41 is removably inserted into the washing drum 31. By driving the pulsator 51 to rotate by the driving motor 71, the present washing device 1 can realize the washing function. When the dehydration drum 41 is inserted into the washing drum 31, the washing device 1 can have a dehydration function. By heating the washing water by the heating chamber 61, the present portable washing device 1 has a high-temperature cooking washing function. In order to facilitate the user to carry, a handle (not shown in the figure) can be added on the housing 21. In addition, an anti-skid pad can also be provided at the bottom of the portable washing device 1 to improve the stability of the machine body. Alternatively, the housing 21 and the washing drum 31 of the present portable washing device 1 are integrated. Alternatively, the present portable washing device 1 cancels the heating chamber configuration.

[0032] The present portable washing device can be powered by a lithium battery. Alternatively, a charging socket can be provided on the housing 21, and an AC power supply can be used to power it. The present portable washing device is small in size and light in weight, and can be designed to be comparable in size to a 1L bottled water volume. The diameter of the drum cover 11 can be the size that can be controlled by the palm, such as about 10 cm, so that it can be lifted by one hand, and therefore can be called a "palm washing device". Therefore, the present portable washing device is convenient to carry and use when traveling, boarding, or renting a house. The portable washing device has washing, high-temperature cooking washing, and dehydration functions, and can not only be used for washing, disinfecting underpants, underwear, or socks and other small items of clothing that need to be cleaned frequently, but also can be used for cleaning baby's bibs, gauze, and small items of clothing. The portable washing device can also be placed in the kitchen for washing small kitchen items such as rags and gloves to avoid the user's hands from being injured by the kitchen cleaner for a long time. In addition, the portable washing device can also be used to wash other small items that need to be cleaned frequently in addition to clothes and kitchen items.

[0033] As shown in Figures 1-3 In one or more embodiments, the housing 21 is generally cylindrical, has an open top end (not labeled in the figure) and an opposite closed bottom end (not labeled in the figure), and the closed bottom end is formed by the bottom wall 215 of the housing 21. As shown in Figure 1As shown, a control button 214 of the washing device 1 is arranged on the shell peripheral wall 211 of the shell 21. In one or more embodiments, the control button 214 includes switch / start, heating, and dehydration buttons. In one or more embodiments, the control button 214 is arranged on a lower portion of the shell peripheral wall 211. Alternatively, the control button 214 is arranged on an upper portion of the shell peripheral wall 211 for the convenience of user's visual observation. In one or more embodiments, the shell 21 is detachable and replaceable according to user's preference. Further, the shell 21 can be in the shape of a teapot. Alternatively, the shell 21 can be in the shape of an animal, a cartoon, a polygonal cylinder, or other shapes according to user's preference. Further, the pattern or color of the surface of the shell 21 can be customized according to user's preference, so as to better meet the individual needs of the user.

[0034] As shown in FIG. 1, the washing device 1 includes a shell 21, a washing cylinder 31, a driving shaft 711, a heating element 712, a water tank 713, and a control system 714. Figure 3 and Figure 4 As shown, the washing cylinder 31 is arranged in the shell 21; the washing cylinder 31 includes an open end 319 at a top end thereof, a bottom wall 318 at a bottom end thereof, and a washing cylinder peripheral wall 311 extending circumferentially between the open end 319 and the bottom wall 318. In one or more embodiments, the washing cylinder 31 is in the shape of a cylinder. Alternatively, the washing cylinder 31 is in the shape of a hexagonal prism or other suitable shape. As shown, Figure 3 In one or more embodiments, a circular arc transition is formed between the bottom wall 318 and the washing cylinder peripheral wall 311 of the washing cylinder 31. As shown, Figure 3 As shown, a plurality of flow guide holes 3182 are formed in the bottom wall 318 of the washing cylinder 31, and a shaft through hole 3181 is arranged at the radial center of the bottom wall 318 for the driving shaft 711 to pass through rotatably. In one or more embodiments, a first limiting ring 315 is arranged on the outer peripheral surface 313 of the washing cylinder peripheral wall 311. The first limiting ring 315 is located at the upper end of the outer peripheral surface 313. In one or more embodiments, the upper side of the first limiting ring 315 is flush with the upper end surface of the washing cylinder 31 and forms part of the open end 319 of the washing cylinder 31. The outer ring surface of the first limiting ring 315 is in contact with the shell 21 and forms a fixed connection therewith. In one or more embodiments, a second limiting ring 316 is also arranged on the outer peripheral surface 313 of the washing cylinder peripheral wall 311. The second limiting ring 316 is arranged at the lower portion or middle portion of the washing cylinder 31. In one or more embodiments, the outer ring surface of the second limiting ring 316 is in contact with the shell 21 and forms a fixed connection therewith. As shown, Figure 3 The washing cylinder peripheral wall 311, the shell 21, the first limiting ring 315, and the second limiting ring 316 together define an assembly cavity 317 for facilitating the wiring of the washing device 1. Further, reinforcing ribs (not shown in the figure) are arranged in the assembly cavity 317 to enhance the structural strength between the washing cylinder peripheral wall 311 and the shell 21. As shown, Figure 3As shown, in one or more embodiments, a drain pipe 320 is further assembled on the peripheral wall 311 of the washing drum 31 and communicates with the interior of the washing drum 31, to drain the washing water in the washing drum 31 during the dehydration. The drain pipe 320 is arranged on the peripheral wall 311 of the washing drum 31 and is close to the bottom wall 318 of the washing drum 31.

[0035] Figure 5 is a schematic top view of the cooperation between the washing drum and the dehydration drum in the embodiment of the portable washing device of the present application. As shown, Figure 5 As shown, in one or more embodiments, a plurality of water blocking protrusions 314 are evenly distributed on the inner circumferential surface 312 of the peripheral wall 311 of the washing drum 31 and are spaced from each other, to change the flow direction of the washing water and promote the washing water to better impact and wash the articles to be washed. In one or more embodiments, four water blocking protrusions 314 are evenly distributed on the inner circumferential surface 312. Each water blocking protrusion 314 extends along the central axis direction of the washing drum 31 (the height direction of the washing drum 31). As shown, Figure 3 and Figure 4 As shown, in one or more embodiments, the lower end of the water blocking protrusion 314 and the bottom wall 318 of the washing drum 31 have a predetermined distance, to form a space for containing the washing water, so as to avoid the washing water from again wetting the clothes being spun dry during the dehydration process. As shown, Figure 5 As shown, in one or more embodiments, the water blocking protrusion 314 has a first water blocking surface 3141 and a second water blocking surface 3142. The cross section of the water blocking protrusion 314 taken along the radial direction of the washing drum 31 has a substantially triangular shape, so that the first water blocking surface 3141 and the second water blocking surface 3142 form obtuse angles with the inner circumferential surface 312 of the peripheral wall 311 of the washing drum 31, respectively. When the washing water flows through the inner circumferential surface 312 and the water blocking surfaces, the water blocking surfaces can effectively change the flow direction of the washing water and can also ensure the flow rate and washing strength of the washing water. As shown, Figure 5 As shown, in one or more embodiments, a limiting surface 3143 is formed at the intersection of the first water blocking surface 3141 and the second water blocking surface 3142. The limiting surface 3143 has a substantially arc-shaped outer surface, to limit the radial deviation of the dehydration drum 41.

[0036] With reference to Figure 3 and Figure 4A pulsator 51 is disposed within the washing tub 31 and rotatable relative to the bottom wall 318 of the washing tub 31. A predetermined gap is left between the pulsator 51 and the bottom wall 318. In one or more embodiments, the predetermined gap is 2-3 mm. Alternatively, the predetermined gap can be other suitable dimensions. The pulsator 51 has a base plate 511 and a plurality of blades 513 distributed on the base plate 511 in a circumferential direction. In one or more embodiments, six blades 513 are distributed on the base plate 511 in a rotational symmetry. A plurality of flow guide holes 512 are distributed on the base plate 511. In one or more embodiments, a center post 514 is provided on the central axis of the pulsator 51. A shaft fixing hole 515 is provided on the center post 514 and capable of locking and matching with the driving shaft 711. The shaft fixing hole 515 extends downward on the central axis of the center post 514 and forms an opening on the lower surface of the base plate 511 to facilitate the driving shaft 711 to be inserted into the shaft fixing hole 515 from below. In one or more embodiments, a limiting post 516 is further provided on the center post 514.

[0037] With continued reference to Figure 3 and Figure 4 In one or more embodiments, a heating chamber 61 is disposed outside the washing tub 31 and on the bottom wall 318 of the washing tub 31. As shown in Figure 3 and Figure 4 The heating chamber 61 includes a heating tray 611 and a heating device 612 arranged in the heating tray 611. The heating tray 611 has a bottom wall 6112 and a ring wall 6111 extending upward in a circumferential direction around the bottom wall 6112, thereby forming an upward opening. The bottom wall 318 of the washing tub 31 covers the opening and forms fluid communication between the heating chamber 61 and the washing tub 31 through the flow guide holes 3182 on the bottom wall 318. In one or more embodiments, the ring wall 6111 and the bottom wall 6112 of the heating tray 611 are integrally formed. A shaft sealing hole 6113 is formed on the bottom wall 6112 to facilitate the driving shaft 711 to be rotatably passed through. As shown in Figure 3 and Figure 4 The heating device 62 is disposed in the heating chamber 60. In one or more embodiments, the heating device 612 is a spiral coiled heating strip. Alternatively, the heating device 612 is a heating disc, a heating wire or other suitable heating structure. In one or more embodiments, an electrode is disposed on the ring wall 6111 and is waterproof insulated to provide power to the heating device 612. In one or more embodiments, the electrode is a waterproof electrode.

[0038] With continued reference to Figure 3 and Figure 4In one or more embodiments, the driving motor 71 is disposed between the heating chamber 61 and the bottom wall 215 of the housing 21. A driving shaft 711 of the driving motor 71 extends along the central axis of the washing drum 31 and is inserted into the shaft fixing hole 515 after sequentially passing through the shaft sealing hole 6113 and the shaft through hole 3181. In one or more embodiments, an oil seal is installed between the shaft sealing hole 6113 and the driving shaft 711. Alternatively, a sealing bearing is installed between the shaft sealing hole 6113 and the driving shaft 711, or both an oil seal and a sealing bearing are installed to ensure the sealing between the driving shaft 711 and the bottom wall 6112 of the heating tray 611. In one or more embodiments, a motor base 712 is disposed between the driving motor 71 and the bottom wall 215 of the housing to facilitate the fixation of the driving motor 71 and provide a damping effect.

[0039] With continued reference to Figure 3 , Figure 4 and Figure 5 , the dewatering drum 41 has a bottom wall 413 and a dewatering drum peripheral wall 411 extending upward along the circumference of the bottom wall 413. In one or more embodiments, the dewatering drum 41 is in the shape of a cylindrical drum. Alternatively, the dewatering drum 41 can be in the shape of a hollow circular truncated cone. The dewatering drum peripheral wall 411 has dewatering holes 412 distributed thereon, and the bottom wall 413 of the dewatering drum 41 also has dewatering holes 412 distributed thereon. The upper end of the dewatering drum peripheral wall 411 forms an open edge 415, and the lower end thereof forms a circular arc transition connection with the bottom wall 413. In one or more embodiments, a limiting hole 4131 matching the limiting post 516 is formed in the radial center of the bottom wall 413 of the dewatering drum 41. The relative position between the dewatering drum 41 and the impeller 51 is defined by the cooperation of the limiting hole 4131 and the limiting post 516 to avoid the relative movement of the impeller 51 and the dewatering drum 41 in the radial direction. With continued reference to Figure 3 , Figure 4 and Figure 5 , the dewatering drum 41 is removably inserted into the washing drum 31. As shown in Figure 5 , when the dewatering drum 41 is inserted into the washing drum 31, the limiting surface 3143 of the water blocking protrusion 314 on the washing drum 31 is opposite to the dewatering drum peripheral wall 411 with a predetermined gap. The water blocking protrusion 313 limits the dewatering drum peripheral wall 411 to avoid the dewatering drum 41 from being skewed in the radial direction, so as to ensure that the dewatering drum 41 can always rotate around the central axis thereof.

[0040] With continued reference to Figure 4 and Figure 6In one or more embodiments, a plurality of clamping grooves 414 are provided outside the dehydration cylinder 41 and on the bottom wall 413 of the dehydration cylinder 41, which are matched with the blades 513. The width of each clamping groove 414 matches the width of the corresponding blade 513, and the depth of the clamping groove 414 is not less than the height of the blade 513. In one or more embodiments, the depth of the clamping groove 414 is 2-3 cm. Alternatively, the depth of the clamping groove 414 can adopt other suitable sizes. The number of clamping grooves 414 is the same as the number of blades 513, such as 6, so that the clamping grooves 414 and the blades 513 can be matched one by one. Alternatively, the number of clamping grooves 414 is less than the number of blades 513. In one or more embodiments, the clamping groove 414 is surrounded by a first clamping leg 4141 and a second clamping leg 4142 extending downward from the bottom wall 413 of the dehydration cylinder 41, so that the clamping groove 414 formed thereby protrudes from the bottom wall 413. The clamping groove 414 of this configuration can effectively support the dehydration cylinder 41 while ensuring that it can be clamped with the blade 513, so that an axial space is formed between the bottom wall 413 and the impeller 51 to facilitate the storage of the washing water discharged from the laundry, thereby avoiding the washing water discharged from the laundry from being re-wetted. In one or more embodiments, the first clamping leg 4141 and the second clamping leg 4142 extend in the radial direction of the blade 513 and form a long strip-shaped clamping leg (not shown in the figure) matched with the blade 513. The long strip-shaped clamping groove formed by the long strip-shaped clamping leg can completely cover the blade 513, thereby increasing the contact area with the blade 513, so that the rotating force of the impeller 51 can be more stably and efficiently transmitted to the dehydration cylinder 41.

[0041] Figure 6 is a schematic view of the cooperation of the cylinder cover, the dehydration cylinder and the impeller in the embodiment of the portable washing device of the present application. As shown in Figure 3 、 Figure 4 and Figure 6 , the cylinder cover 11 can be opened to cover the open end 319 of the washing cylinder 31. In one or more embodiments, a matching threaded locking structure is provided between the cylinder cover 11 and the outer shell 21, and the cylinder cover 11 can be completely removed from the outer shell 20 or fixed by screwing, so that the cylinder cover 11 completely covers the open end 319 of the washing cylinder 31 and is in airtight contact therewith. Alternatively, a matching clamping locking structure is provided between the cylinder cover 11 and the outer shell 21, and the cylinder cover 11 can be completely removed from the outer shell 21 or fixed by clamping, which also achieves that the cylinder cover 11 completely covers the open end 319 of the washing cylinder 31 and is in airtight contact therewith. Alternatively, a hinge and a clasp are provided between the cylinder cover 11 and the outer shell 21, and the cylinder cover 11 and the outer shell 21 are rotatably connected by the hinge and form a flip cover structure, so that the cylinder cover 11 can be opened by flipping from one side of the outer shell 21 or fixed by clamping with the outer shell 21. When the cylinder cover 11 and the outer shell 21 adopt the flip cover structure, the control button 214 can also be provided on the cylinder cover 11 to facilitate user operation.

[0042] Figure 7 This is a schematic diagram of the cylinder cover structure in an embodiment of the portable washing device of the present invention. Figure 7 As shown, the drum lid 11 includes a lid body 111 and a plurality of rollable units 114 that can roll freely relative to the lid body 111. The lid body 111 has an outer side 111a facing away from the washing drum 31 and an inner side 111b facing the washing drum 31. Figure 3 , Figure 4 ,and Figure 7 As shown, in one or more embodiments, a boss 112 is formed on the inner side 111b of the cover 111 facing the washing tub 31. When the cover 11 is installed in the opening end 319 of the washing tub 31, the boss 112 can extend into the washing tub 31 from the opening end 319. Figure 3 and Figure 4 As shown, a sealing edge 1111 surrounding the boss 112 is also provided on the inner side of the cover 111 facing the washing drum 31. When the cover 11 covers the washing drum 31, the sealing edge 1111 can seal against the opening end 319, ensuring that washing water does not leak from the joint, thereby preventing washing water from entering between the washing drum 31 and the outer casing 21, and thus preventing short circuits or motor burnout. In one or more embodiments, an inwardly recessed chamber 115 is provided in the boss 112. The chamber 115 is circular and its opening faces the washing drum 31. Alternatively, the chamber 115 can be square, hexagonal, or other suitable shapes.

[0043] Continue to refer to Figure 3 , Figure 4 ,and Figure 7In one or more embodiments, a plurality of rollable units 114 are fixed to the cover 111 by a rollable unit seat 113. In one or more embodiments, the rollable unit seat 113 has a generally circular and plate-like structure and is arranged and fixed in a chamber 115 located on the cover 111. The thickness of the rollable unit seat 113 is the same as the depth of the chamber 115. A predetermined radial clearance is provided between the rollable unit seat 113 and the chamber 115 in the radial direction to accommodate each rollable unit 114 and allow it to rotate freely. In one or more embodiments, the cover 11 is provided with a plurality of fixing holes 116. Each fixing hole 116 includes a first fixing hole portion 116a extending in the cover 111 and a corresponding second fixing hole portion 116b extending in the rollable unit seat 113. The rollable unit seat 113 can be fixed in the chamber 115 by a screw engaging with the threaded connection between the fixing holes 116. Alternatively, a center screw post is provided at the radial center position of the housing 115, and a center screw hole matching the center screw post is provided at the radial center position of the rolling unit seat 113. The rolling unit seat 113 is then fixedly installed in the housing 115 by the cooperation of the center screw post and the center screw hole. Alternatively, the rolling unit seat 113 can also be fixedly installed in the housing 115 using a claw, a slot structure, or other suitable connection structure.

[0044] Continue to refer to Figure 3 , Figure 4 ,and Figure 7 In one or more embodiments, each rollable unit 114 includes a rolling shaft 114a and a roller 114b. The rolling shafts 114a are arranged on the radial outer periphery of the rolling unit seat 113, and the plurality of rolling shafts 114a are evenly spaced apart. Each rolling shaft 114a extends radially outward from the radial outer periphery of the rolling unit seat 113. Figure 3 and Figure 7As shown, after the rolling unit seat 113 is assembled into the seat chamber 115, a predetermined gap is left between the end of each rolling shaft 114a and the inner circumferential wall of the seat chamber 115, which is smaller than the axial thickness of the roller 114b. In one or more embodiments, the width of the predetermined gap is zero, i.e., the end of each rolling shaft 114a abuts against the inner circumferential wall of the seat chamber 115. The roller 114b is freely rotatably assembled on the corresponding rolling shaft 114a. In one or more embodiments, a stopper is arranged between the roller 114b and the rolling shaft 114a to prevent the roller 114b from falling off the rolling shaft 114a during rotation. When the rolling unit seat 113 is assembled into the seat chamber 115, a portion of the roller 114b protrudes from the boss 112 towards the washing drum 31 so as to abut against the opening edge 415 of the dehydration drum 41. When the rolling unit seat 113 is assembled into the seat chamber 115, the outer circumferential surface of the roller 114b and the bottom surface of the seat chamber 115 do not contact each other, so as to allow the roller 114b to freely rotate relative to the cover 111. Alternatively, the roller 114b on each rolling shaft 114a is replaced by a bearing, wherein the inner ring of the bearing is fixedly connected with the rolling shaft 114a, and the outer ring of the bearing can abut against the opening edge 415 of the dehydration drum 41 and freely rotate relative to the inner ring.

[0045] To perform washing, the dehydration drum 41 is removed from the washing drum 31; washing water and laundry are put into the washing drum 31 from the open end 319 of the washing drum 31; the drum cover 11 is closed so that the sealing edge 1111 abuts against the upper edge of the open end 319. Then, the washing program is started by activating the control button 214. In the washing state, the driving shaft 711 drives the pulsator 51 to rotate at a high speed, so as to cause the washing water to generate vortex. In one or more embodiments, the rotation speed of the pulsator is in the range of 500 r / min-1000 r / min. Alternatively, the rotation speed of the pulsator is 800 r / min. The water-blocking protrusion 314 disturbs the vortex to change the flow direction of the washing water, so as to cause the washing water to impact the laundry from multiple directions, thereby improving the cleaning effect. When high-temperature scouring is performed, the washing water in the washing drum 31 enters the heating chamber 61 through the flow guide hole 512 on the bottom disc 511 of the pulsator 51 and the flow guide hole 3182 on the bottom wall 318 of the washing drum 31 in turn, is heated in the heating chamber 61, and then flows back to the washing drum 31. The washing water is continuously circulated between the washing drum 31 and the heating chamber 61, so as to ensure that the water temperature is always in the temperature range of high-temperature scouring, thereby achieving sterilization and disinfection of the laundry.

[0046] When dehydration is needed, the dehydration drum 41 is inserted into the washing drum 31. Specifically, as shown in FIG. 6, the dehydration drum 41 is inserted into the washing drum 31 through the open end 319 of the washing drum 31, and the rolling unit seat 113 is assembled into the seat chamber 115 of the dehydration drum 41. The rolling unit seat 113 is assembled into the seat chamber 115 of the dehydration drum 41 through the open end 319 of the washing drum 31, and the rolling unit seat 113 is assembled into the seat chamber 115 of the dehydration drum 41. Figure 4As shown, the limiting hole 4131 on the bottom wall 413 of the dehydration cylinder 41 is matched and aligned with the limiting column 516 on the pulsator 51, and the clamping slot 414 is clamped with the corresponding blade 513, so that the dehydration cylinder 41 is stably connected with the pulsator 51. Then, the items to be dehydrated are put into the dehydration cylinder 41, and the cylinder cover 11 is covered. As shown Figure 3 As shown, when the cylinder cover 11 is sealed and matched with the washing cylinder 31, the roller 114b of the rollable unit 114 is abutted against the opening edge 415 of the dehydration cylinder 41, so that the cylinder cover 11 is pressed and abutted against the dehydration cylinder 41. The dehydration program is started by controlling the button 214, and dehydration is started. In the dehydration state, the pulsator 51 drives the dehydration cylinder 41 to rotate at high speed. Under the action of centrifugal force, the washing water on the items to be dehydrated is thrown out. In one or more embodiments, in the dehydration state, the rotation speed of the pulsator is in the range of 800r / min-1200r / min. Alternatively, the rotation speed of the pulsator is 1000r / min. The discharged washing water can be discharged from the drain pipe 320. Alternatively, the drain pipe is not arranged on the washing cylinder 31, so as to further simplify the structure and reduce the volume of the washing device. In this case, the discharged washing water can be directly poured out from the opening end 319 of the washing cylinder 31. It should be noted that if there is more washing water remaining in the clothes to be dehydrated, the clothes can be dehydrated for multiple times, and the washing water is poured out from the opening end 319 after each dehydration, and the clothes can reach a suitable drying degree after multiple dehydrations.

[0047] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A portable washing apparatus, characterized by comprising: The portable washing apparatus comprises: a washing tub having an open end and a pulsator rotatably arranged on a bottom wall of the washing tub; a dewatering tub removably inserted into the washing tub and having distributed dewatering holes; and a tub cover configured to openably cover the open end, the tub cover being fitted with a plurality of rollable units spaced apart from each other on an inner side surface thereof facing an interior of the washing tub, in a dewatering process, an open edge of the dewatering tub abuts against the plurality of rollable units, and a bottom wall of the dewatering tub is fitted with the pulsator and forms an axial space therebetween, such that rotation of the pulsator drives rotation of the dewatering tub relative to the washing tub for dewatering; wherein a plurality of water blocking protrusions are arranged along a circumferential direction of a tub wall of the washing tub and spaced apart from each other, and when the dewatering tub is inserted into the washing tub, a predetermined gap is left between each of the water blocking protrusions and an outer circumferential surface of a tub wall of the dewatering tub; wherein each of the water blocking protrusions extends along a height of the washing tub and includes first and second water blocking surfaces opposite to each other; wherein each of the water blocking protrusions has a substantially triangular cross section along a radial direction of the washing tub.

2. The portable washing apparatus according to claim 1, wherein Each of the rollable units includes a fixed shaft mounted on the inner side surface of the tub cover and a roller or bearing rotatable about the fixed shaft.

3. The portable washing apparatus according to claim 1 or 2, characterized by, The pulsator includes a base plate and a plurality of blades arranged in a radial direction and spaced apart from each other formed on the base plate, and a plurality of clamping grooves are provided on an outer surface of the bottom wall of the dewatering tub and can be respectively clamped with one of the plurality of blades.

4. The portable washing apparatus according to claim 3, wherein Each clamping groove is surrounded by two clamping legs extending outwardly from the outer surface of the bottom wall of the dewatering tub.

5. The portable washing apparatus according to claim 3, wherein A limiting column extending toward the open end of the washing tub is provided at a radial center of the pulsator, and a limiting hole matching the limiting column is provided on the bottom wall of the dewatering tub.

6. The portable washing apparatus according to claim 3, wherein The portable washing apparatus further comprises: a heating chamber including a bottom-sealed heating tray fixed to an outer surface of the bottom wall of the washing tub and covered by the bottom wall of the washing tub, and a plurality of flow guide holes are respectively provided on the bottom wall of the washing tub and the base plate of the pulsator, such that the heating chamber can be in fluid communication with the interior of the washing tub; and a heating device arranged in the heating tray.

7. The portable washing apparatus according to claim 6, wherein The portable washing apparatus further comprises an outer shell, the washing tub is arranged in the outer shell, and a motor chamber for accommodating a driving motor is provided between the heating chamber and the outer shell, a driving shaft of the driving motor is rotatably fixedly connected with the pulsator through the heating chamber.

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