A washing apparatus

Abstract

The application discloses a kind of washing equipment, comprising, shell;Washing barrel is arranged in the center of the inside of the shell;Water inlet structure is communicated with the washing barrel, for water into washing barrel;Further comprising, sealing rotary structure, hollow structure is arranged on the bottom wall of the washing barrel, located the outer periphery of washing barrel rotation axis, with the water outlet end of water inlet structure sealing rotation connection, respectively with the washing barrel and water inlet structure communication, with water inlet structure cooperation from outside to water into washing barrel.The washing equipment of the application washing barrel can be from outside to water into washing barrel in the process of rotation, realize the water of washing while washing, both reduce the time length of machine body work, and can improve the cleaning effect to the washing object;Sealing rotary structure can play the role of sealing adapter, ensure the sealing connection between washing barrel and water inlet structure in the process of washing barrel relative to water inlet structure rotation.

Description

Technical Field

[0001] This invention belongs to the field of household appliances, and specifically relates to a washing device. Background Technology

[0002] Existing washing machines often cause clothes to float and not tumble when washing large items or light down jackets, resulting in poor washing of top garments. Current solutions address this by increasing the spin speed and duration for these types of garments. However, this method causes significant wear and tear on the clothes and can lead to load imbalance or tangling during washing and rinsing, resulting in excessive machine vibration. Furthermore, the washing tub may shake violently or impact the machine body during spin-drying, causing instability and a poor user experience.

[0003] Chinese Patent Application No. CN201910706956.6 discloses a pulsator washing machine and its control method. The pulsator washing machine includes: a washing tub; a water tank coaxially disposed outside the washing tub; a deceleration clutch connected to the washing tub, the deceleration clutch having a hollow channel inside; and a water circulation system, the water inlet of which is connected to the water tank, and the water outlet connected to the inside of the washing tub through the hollow channel of the deceleration clutch. In the pulsator washing machine provided by this invention, during washing or rinsing, the water circulation system circulates water into the washing tub through the hollow channel of the deceleration clutch, continuously rinsing the inside of the clothes and improving the washing or rinsing efficiency of the washing machine.

[0004] Although the pulsator washing machine in the above solution has a hollow channel with a circulating water spray function, which can suppress the floating of clothes to a certain extent, the hollow channel is set on the deceleration clutch device and formed by the output shaft of the deceleration clutch device. It needs to realize water flow and drive the pulsator to rotate at the same time. Therefore, the length and inner diameter of the hollow channel are limited, and it cannot realize large-area water spray, resulting in limited cleaning effect on clothes.

[0005] In view of the above-mentioned technical deficiencies, this invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a washing device that can reduce working time and improve the washing effect of clothes.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0008] A washing device includes a housing;

[0009] A washing tub is located at the center inside the housing;

[0010] A water inlet structure, connected to the washing tub, is used to introduce water into the washing tub;

[0011] It also includes,

[0012] The sealed rotary structure is a hollow structure, located on the bottom wall of the washing tub, on the outer periphery of the washing tub's rotating shaft. It is sealed and rotatably connected to the water outlet of the water inlet structure, and communicates with both the washing tub and the water inlet structure. It cooperates with the water inlet structure to allow water to enter the washing tub from the outside.

[0013] By adopting the above solution, washing water can be introduced from the outside into the washing tub during rotation, realizing simultaneous washing and water intake. This reduces the machine's working time and improves the cleaning effect on the items to be washed. The sealed rotating structure can play a sealing role, ensuring a sealed connection between the washing tub and the water inlet structure during the rotation of the washing tub relative to the water inlet structure.

[0014] Furthermore, the sealing rotary structure includes,

[0015] The first section is a tubular structure, fixedly installed on the inner side of the bottom wall of the washing tub, and configured as a sealed rotating water outlet for water to enter the washing tub.

[0016] The second section is a tubular structure, fixedly installed on the outside of the bottom wall of the washing tub, coaxially arranged with the washing tub, and used for a sealed rotatable connection with the water inlet structure; the second section is configured as the water inlet end of a sealed rotary structure;

[0017] Preferably, both the first and second sections are integrally formed with the bottom wall of the washing tub.

[0018] Furthermore, a water inlet is provided on the bottom wall of the washing tub, located inside the sealed rotary structure, connecting the first section and the second section, and cooperating with the sealed rotary structure to allow water to flow from the outside into the washing tub.

[0019] Furthermore, the water inlet is located on the outer periphery of the rotating shaft;

[0020] At least the outlet end of the water inlet structure is an annular structure, and the inner ring of the annular structure is hollow, so that the inner and outer rings of the annular structure can form an annular water passage that communicates with the water inlet through the rotating shaft.

[0021] By adopting the above solution, the water inlet structure does not hinder the rotating shaft from driving the washing tub to rotate during the process of water entering the washing tub, thereby enabling water to enter the washing tub during the washing or rinsing process, achieving the effect of water intake and rinsing of clothes.

[0022] Furthermore, it also includes a pulsator, which is disposed at the bottom inside the washing tub;

[0023] The first section of the sealing rotary structure is rotatably connected to the impeller seal;

[0024] Preferably, the first segment is coaxially arranged with the washing tub, and the first segment is rotatably and sealed to the central shaft of the impeller.

[0025] Furthermore, the impeller includes,

[0026] The impeller is configured as the main body of the impeller;

[0027] The stirring rod has a hollow structure and is fixedly installed at the central axis of the impeller.

[0028] The first section is rotatably and sealed to the stirring rod, and the sealed rotary structure is connected to the stirring rod through the first section;

[0029] Preferably, one end of the stirring rod connected to the impeller extends towards the bottom side of the impeller, penetrates the bottom wall of the impeller, and connects to the first section of the sealed rotary structure.

[0030] By adopting the above scheme, the stirring rod can agitate the items to be washed and prevent load eccentricity caused by uneven distribution of the items to be washed, thereby further improving the cleaning effect of the items to be washed and simplifying the connection between the sealed rotary structure and the impeller.

[0031] Furthermore, the end of the stirring rod away from the impeller is configured as the upper end of the stirring rod, extending axially toward the inlet side of the washing tub, extending at least to the upper middle part of the washing tub;

[0032] The upper end of the stirring rod is provided with multiple water spray nozzles along the axial direction of the stirring rod, configured such that the range of the water jets sprayed from the nozzles gradually increases from bottom to top.

[0033] Preferably, the peripheral wall below the water spray nozzle of the stirring rod is provided with multiple perforations for spraying water outward from the cavity of the stirring rod.

[0034] By adopting the above scheme, the water jet sprayed from the top of the stirring rod can form a waterfall shape, which has the effect of rinsing and pressing the floating items to be washed, thus improving the cleaning effect on items that are easy to float.

[0035] Furthermore, it also includes a water tank, coaxially disposed between the housing and the washing tub; the washing tub wall is provided with a through hole, which communicates with the water tank;

[0036] The water inlet end of the water inlet structure is connected to the water holding tank. The water inlet structure and the sealing rotary structure work together to circulate washing water from the water holding tank into the washing tank. The water inlet structure is configured as a circulating water pipe.

[0037] By adopting the above solution, the washing water in the water tank can be recycled to rinse the items to be washed, thereby improving the cleaning effect.

[0038] Furthermore, the sealing rotary structure also includes,

[0039] The first sealing part has a deformable structure and is disposed on the first segment, with at least a portion of the structure located on the outer wall of the first segment;

[0040] The second sealing part has a deformable structure and is disposed on the second section, with at least a portion of the structure located on the inner wall of the second section, for sealing connection with the water inlet structure;

[0041] Preferably, the sealing rotary structure is a variable diameter tubular structure, wherein the diameter of the first section is smaller than the diameter of the second section.

[0042] By adopting the above scheme, the inner circumference of the stirring rod is sealed to the first sealing part, and the outer circumference of the water inlet structure is sealed to the second sealing part. While achieving the sealing connection effect of the sealing rotary structure, the water flow efficiency can be guaranteed. In addition, the variable diameter pipe structure facilitates the connection between the stirring rod and the sealing rotary structure, and has a limiting effect on the downward movement of the stirring rod, thus improving the connection effect.

[0043] Furthermore, the first sealing portion includes,

[0044] The first annular sealing lip is disposed on the outer peripheral wall of the first section and is inclined along the axial direction of the first section toward the side away from the bottom wall of the washing tub.

[0045] The first mounting groove is disposed on the inner peripheral wall of the first section and is used to install the elastic element so as to cooperate with the elastic element to apply a radially outward force to the peripheral wall at that location.

[0046] And / or, the second sealing portion includes,

[0047] The second annular sealing lip is disposed on the inner peripheral wall of the second section and is inclined along the axial direction of the second section toward the side away from the bottom wall of the washing tub.

[0048] The second mounting groove is disposed on the outer peripheral wall of the second section and is used to install the elastic element so as to cooperate with the elastic element to apply a radially inward force to the peripheral wall at that location.

[0049] By adopting the above scheme, the deformation of the two sealing parts can ensure the sealing effect of the sealing rotary structure with the stirring rod and the water inlet structure respectively.

[0050] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0051] 1. During the rotation of the washing tub, washing water can be introduced from the outside into the washing tub, realizing simultaneous washing and water intake, which reduces the working time of the machine and improves the cleaning effect of the clothes to be washed; the sealed rotating structure can play a role in sealing the connection, ensuring the sealed connection between the washing tub and the water inlet structure during the rotation of the washing tub relative to the water inlet structure.

[0052] 2. The annular water inlet structure does not hinder the rotating shaft from driving the washing tub to rotate during the process of water being introduced into the washing tub.

[0053] 3. The stirring rod agitates and stirs the clothes to be washed, achieving a cleaning effect through friction. It also helps to tumble the clothes and prevents uneven distribution of the clothes, thus improving the cleaning effect. The water jet from the nozzle at the top of the stirring rod forms a waterfall-like spray, which washes and presses down floating clothes, improving the cleaning effect on easily floating clothes. The water sprayed from the perforations washes the clothes below and above the water surface, further improving the cleaning effect.

[0054] 3. The inner circumference of one end of the sealed rotary structure is sealed to the inner wall of the stirring rod, and the outer circumference of the other end is sealed to the inner circumference of the water inlet structure, which can improve the connection effect and water flow efficiency.

[0055] 4. The sealing rotary structure is a variable diameter tubular shape, which facilitates the connection between the stirring rod and the sealing rotary structure, and also limits the downward movement of the stirring rod, improving the connection effect; the annular sealing lip structure of the two sealing parts can achieve a sealing connection with the stirring rod and the water inlet structure through deformation, ensuring the sealing effect.

[0056] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0057] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0058] Figure 1 This is a schematic diagram of the washing equipment of the present invention;

[0059] Figure 2 This is a schematic diagram of the installation structure of the sealing rotary structure of the present invention;

[0060] Figure 3 yes Figure 2 Another perspective structural diagram;

[0061] Figure 4 yes Figure 2 A schematic diagram of a partial cross-sectional structure.

[0062] In the diagram: 1. Washing tub; 10. Bottom wall of washing tub; 112. Water inlet; 113. Connecting part; 114. Shaft hole; 2. Water tank; 3. Sealing rotary structure; 31. First section; 311. First sealing part; 3111. First annular sealing lip; 3112. First mounting groove; 32. Second section; 321. Second sealing part; 3211. Second annular sealing lip; 3212. Second mounting groove; 4. Water inlet structure; 5. Rotating shaft; 61. Impeller; 62. Impeller shaft; 63. Stirring rod; 631. Spray nozzle; 632. Perforation; 7. Water pump; 8. Housing.

[0063] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0064] To make the objectives, 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 with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0065] In the description of this invention, it should be noted that the terms "upper," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0066] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0067] like Figures 1 to 4As shown, the present invention provides a washing device, comprising: a housing 8; a washing tub 1 disposed at the center inside the housing 8; a water inlet structure 4 communicating with the washing tub 1 for introducing water into the washing tub 1; and a sealed rotating structure 3, which is a hollow structure disposed on the bottom wall of the washing tub 1, located on the outer periphery of the rotating shaft 5 of the washing tub 1, and sealed and rotatably connected to the water outlet end of the water inlet structure 4, communicating with both the washing tub 1 and the water inlet structure 4, and cooperating with the water inlet structure 4 to introduce water into the washing tub 1 from the outside.

[0068] In the washing device of the present invention, washing water can be introduced into the washing tub 1 from the outside during the rotation process, realizing washing while water is introduced, which not only reduces the overall working time of the machine, but also rinses the clothes to be washed during the water introduction process and improves the cleaning effect of the clothes to be washed; the sealing rotary structure 3 can play the role of sealing and connecting, ensuring the sealed connection between the washing tub 1 and the water inlet structure 4 during the rotation of the washing tub 1 relative to the water inlet structure 4.

[0069] The washing equipment is a washing machine or a shoe washing machine, and the items to be washed include clothing, shoes, socks, etc.

[0070] As one implementation scheme, the water inlet structure 4 is a water inlet pipe.

[0071] like Figure 2 and Figure 4 As shown, the sealed rotary structure 3 includes a first section 31, which is a tubular structure, fixedly disposed on the inner side of the bottom wall of the washing tub 1, and configured as the water outlet of the sealed rotary structure 3 for water to enter the washing tub 1; and a second section 32, which is a tubular structure, fixedly disposed on the outer side of the bottom wall of the washing tub 1, coaxially disposed with the washing tub 1, and configured for sealed rotatable connection with the water inlet structure 4; the second section 32 is configured as the water inlet of the sealed rotary structure 3.

[0072] The sealing rotary structure 3 is an integral structure with the bottom wall of the washing tub 1, and the first section 31 and the second section 32 are both integrally formed with the bottom wall of the washing tub 1.

[0073] The bottom wall of the washing tub 1 is provided with a water inlet 112, which is located inside the sealing rotary structure 3. The sealing rotary structure 3 covers the outer periphery of the water inlet 112. The water inlet 112 connects the first section 31 and the second section 32, and cooperates with the sealing rotary structure 3 to allow water to flow from the outside into the washing tub 1.

[0074] The water inlet 112 is located on the outer periphery of the rotating shaft 5; at least the outlet end of the water inlet structure 4 is an annular structure, with the inner ring of the annular structure being hollow, allowing water to pass through the rotating shaft 5, and forming an annular water passage communicating with the water inlet 112 between the inner and outer rings of the annular structure. During the process of water entering the washing tub 1, the water inlet structure 4 does not obstruct the rotating shaft 5 from driving the washing tub 1 to rotate, thereby enabling water to enter the washing tub 1 during washing or rinsing, achieving the effect of water intake and rinsing of clothes.

[0075] Multiple water inlets 112 are provided and are evenly distributed on the outer periphery of the rotating shaft 5.

[0076] The bottom wall of the washing tub 1 is provided with a connecting part 113, and the rotating shaft 5 is connected to the washing tub 1 through the connecting part 113. The water inlet 112 is provided on the outer periphery of the connecting part 113.

[0077] In one embodiment, the connecting part 113 is a connecting hole structure, and the rotating shaft 5 is inserted into the connecting hole and screwed into the washing tub 1.

[0078] The outlet end of the water inlet structure 4 is connected to the outer side of the bottom wall 10 of the washing tub. Specifically, the outer peripheral wall of the outlet end is sealed to the inner peripheral wall of the sealing rotary structure 3, which can rotate relative to the water inlet structure 4. The inner ring end face of the outlet end of the water inlet structure 4 is sealed to the bottom wall 10 of the washing tub, which can rotate relative to the outlet end of the water inlet structure 4. The annular water channel at least completely covers each water inlet 112 in the circumferential direction, and the inner ring of the water inlet structure 4 is located outside the connecting part 113, ensuring that the washing water completely enters the washing tub 1 through the water inlet 112 and does not flow to the connecting part 113.

[0079] like Figure 1 As shown, the washing equipment also includes a pulsator, which is located at the bottom of the washing tub 1; the first section 31 of the sealed rotary structure 3 is rotatably connected to the pulsator.

[0080] like Figure 1 As shown, the first segment 31 is coaxially arranged with the washing tub 1, and the first segment 31 is rotatably connected to the central shaft of the impeller in a sealed manner.

[0081] The impeller includes an impeller disk 61, which is configured as the main body of the impeller; a stirring rod 63, which is a hollow structure and is fixedly installed at the central axis of the impeller disk 61; the first section 31 is rotatably connected to the stirring rod 63 in a sealed manner, and the sealed rotary structure 3 is connected to the stirring rod 63 through the first section 31.

[0082] The impeller 61 has an impeller shaft 62 at its central axis, and the stirring rod 63 covers the outer periphery of the impeller shaft 62. The bottom wall of the washing tub 1 has a shaft hole 114 at its central axis for the impeller shaft 62 to pass through, and the connecting part 113 is distributed on the outer periphery of the shaft hole 114.

[0083] like Figure 1 As shown, one end of the stirring rod 63 connected to the impeller 61 extends towards the bottom of the impeller 61, penetrating the bottom wall of the impeller 61, and connects to the first section 31 of the sealed rotary structure 3. The arrangement of the stirring rod 63 in this design facilitates the connection between the sealed rotary structure 3 and the stirring rod 63; furthermore, since the sealed rotary structure 3 does not contact the impeller 61, friction is reduced, and it also facilitates the relative rotation of the stirring rod 63 and the sealed rotary structure 3.

[0084] The stirring rod 63 of the present invention has the effect of stirring the items to be washed. Since the position of the stirring rod 63 matches the position of the sealing rotary structure 3 and is also located in the center of the impeller, it can prevent the load eccentricity caused by uneven distribution of the items to be washed, and further improve the cleaning effect of the items to be washed.

[0085] As one implementation, the washing equipment also includes an eccentricity detection device for detecting the eccentricity of the load during washing and / or rinsing. If the eccentricity exceeds a set eccentricity value, the device adjusts the rotation direction and / or speed of the impeller and / or washing tub 1 to adjust the load distribution and reduce the eccentricity. Additionally, to address the issue of tangled laundry, a detangling procedure is included during the washing process to untangle the laundry.

[0086] like Figure 1 As shown, the end of the stirring rod 63 away from the impeller 61 is configured as the upper end of the stirring rod 63, extending axially toward the inlet side of the washing tub 1, extending at least to the upper middle part of the washing tub 1; the upper end of the stirring rod 63 is provided with a plurality of water spray nozzles 631 along the axial direction of the stirring rod 63, configured such that the range of the water jet sprayed from the water spray nozzles 631 gradually increases from bottom to top.

[0087] The arrangement of the water nozzles 631 includes, but is not limited to, the following: the diameter of the multiple water nozzles 631 gradually decreases from bottom to top; the angle between the multiple water nozzles 631 and the stirring rod 63 gradually increases from bottom to top along the vertical downward direction; the stirring rod 63 has multiple water-blocking structures spaced at intervals on the upper end of the axial direction, which are used to limit the path of the water flow sprayed from each water nozzle 631, etc.

[0088] The arrangement and position of the spray nozzle 631 ensure that, regardless of the amount of water in the washing tub 1, there is always a water jet that can reach the inner wall of the washing tub 1.

[0089] As one implementation, the outer periphery of the upper end of the stirring rod 63 is provided with multiple baffles spaced axially. The outer edge of the baffles is inclined downwards, and the downward inclination angle of the outer edge of each baffle gradually decreases from bottom to top, so that the range of the water jet from the water nozzle 631 gradually increases from bottom to top, forming a multi-layered waterfall.

[0090] The upper end of the stirring rod 63 is positioned such that even if there is a large amount of washing water in the washing tub 1, the upper end of the stirring rod 63 is still above the water surface, and at least part of the spray nozzles 631 are above the water surface.

[0091] As a preferred option, such as Figure 1 As shown, the multiple water nozzles 631 are distributed along the circumference of the stirring rod 63 and form an intermittent annular structure along the axial direction of the stirring rod 63, so that the sprayed water flow forms a multi-layer annular waterfall.

[0092] The stirring rod 63 has multiple perforations 632 on the peripheral wall below the water nozzle 631, which are distributed along the axial and circumferential directions of the stirring rod 63 for spraying water outward from the cavity of the stirring rod 63.

[0093] The shapes of the water nozzle 631 and the perforation 632 can be set according to the implementation situation and needs.

[0094] As one implementation, the orientation of each perforation 632 is along the radial direction of the stirring rod 63.

[0095] The spray nozzle 631 and perforation 632 of the present invention spray water outward from the cavity of the stirring rod 63, which respectively has the effect of rinsing and pressing the floating objects to be washed and the effect of rinsing the objects to be washed, thereby improving the cleaning effect of the objects to be washed.

[0096] The washing device of the present invention also includes a water tank 2, which is coaxially arranged between the housing 8 and the washing tub 1; the washing tub 1 has a through hole on its wall, which communicates with the water tank 2; the water inlet end of the water inlet structure 4 is connected to the water tank 2, and the water inlet structure 4 cooperates with the sealing rotary structure 3 to circulate washing water from the water tank 2 into the washing tub 1, and the water inlet structure 4 is configured as a circulating water pipe.

[0097] The circulating water pipe of the present invention can recycle the washing water in the water tank 2 to rinse the items to be washed, thereby improving the cleaning effect.

[0098] like Figure 1 As shown, the inlet end of the circulating water pipe is fixedly connected to the bottom wall of the water tank 2, that is, the circulating water pipe as a whole is fixed relative to the water tank 2.

[0099] The circulating water pipe is equipped with a water pump 7, which provides power to the washing water flowing from the water tank 2 into the washing tub 1. Preferably, the water pump 7 is a high-pressure water pump 7.

[0100] Furthermore, the circulating water pipe is equipped with a valve to control the connection and disconnection of the water path in the circulating water pipe.

[0101] The sealing rotary structure 3 further includes a first sealing part 311, which has a deformable structure and is disposed on the first segment 31, with at least a portion of the structure located on the outer wall of the first segment 31; and a second sealing part 321, which has a deformable structure and is disposed on the second segment 32, with at least a portion of the structure located on the inner wall of the second segment 32, for sealing connection with the water inlet structure 4.

[0102] like Figure 4 As shown, the inner circumference of the stirring rod 63 is sealed to the outer circumference of the first section 31 through the first sealing part 311, and the outer circumference of the water inlet structure 4 is sealed to the inner circumference of the second section 32 through the second sealing part 321. While achieving the sealing connection effect of the sealing rotary structure 3, the water flow efficiency can be guaranteed.

[0103] The sealing rotary structure 3 is a variable-diameter tubular structure, with the diameter of the first section 31 being smaller than that of the second section 32. The end of the stirring rod 63 connected to the first sealing part 311 is sleeved around the outer periphery of the first section 31, with the end face of this end of the stirring rod 63 close to the variable-diameter section of the sealing rotary structure 3. This design facilitates the connection between the stirring rod 63 and the sealing rotary structure 3 and also limits the downward movement of the stirring rod 63, improving the connection effect.

[0104] The inner circumference of the stirring rod 63 of the present invention is sealed to the first sealing part 311, and the outer circumference of the water inlet structure 4 is sealed to the second sealing part 321. While achieving the sealing connection effect of the sealing rotary structure 3, it can ensure the water flow efficiency. In addition, the variable diameter pipe structure facilitates the connection between the stirring rod 63 and the sealing rotary structure 3, and has a limiting effect on the downward movement of the stirring rod 63, thereby improving the connection effect.

[0105] like Figure 4 As shown, the first sealing part 311 includes a first annular sealing lip 3111, which is disposed on the outer peripheral wall of the first segment 31 and inclined along the axial direction of the first segment 31 away from the bottom wall 10 of the washing tub; and a first mounting groove 3112, which is disposed on the inner peripheral wall of the first segment 31, has an annular structure, is recessed from the inner wall outward, and is protruding on the outer wall at the corresponding position, for mounting an elastic element, so as to cooperate with the elastic element to apply a radially outward force to the peripheral wall at that position.

[0106] At least the first annular sealing lip 3111 and the portion having the first mounting groove 3112 of the first sealing portion 311 are made of elastic material.

[0107] The inner peripheral wall of the stirring rod 63 is elastically connected to the first annular sealing lip 3111 and the portion with the first mounting groove 3112, so as to achieve a sealed connection between the stirring rod 63 and the first sealing part 311. Furthermore, both the first annular sealing lip 3111 and the portion with the first mounting groove 3112 can be interference-fitted with the inner peripheral wall of the stirring rod 63.

[0108] The second sealing part 321 includes a second annular sealing lip 3211, which is disposed on the inner peripheral wall of the second section 32 and inclined along the axial direction of the second section 32 away from the bottom wall 10 of the washing tub; and a second mounting groove 3212, which is disposed on the outer peripheral wall of the second section 32, has an annular structure, is recessed from the outer wall inward, and is raised on the inner wall at the corresponding position, for mounting an elastic element, so as to cooperate with the elastic element to apply a radially inward force to the peripheral wall at that position.

[0109] The second sealing portion 321, including at least the second annular sealing lip 3211 and the portion having the second mounting groove 3212, is made of an elastic material.

[0110] Preferably, the sealing rotary structure 3 is made of an elastic material.

[0111] like Figure 4 As shown, at least two first annular sealing lips 3111 are provided, which are distributed at intervals along the axial direction of the first segment 31; the first mounting groove 3112 is provided on the side of the first annular sealing lip 3111 facing the second segment 32.

[0112] The second annular sealing lip 3211 is provided in at least two parts, which are distributed along the axial direction of the second segment 32 on the second segment 32; the second mounting groove 3212 is provided on the side of the second annular sealing lip 3211 away from the first segment 31.

[0113] Sealing principle: During washing and rinsing, the impeller rotates relative to the washing tub 1, and the stirring rod 63 applies an axial downward force to the first annular sealing lip 3111, causing the first annular sealing lip 3111 to unfold downward, ensuring a sealing effect with the stirring rod 63; during spin-drying, the impeller and the washing tub 1 rotate together, both relative to the water inlet structure 4, and the impeller and the washing tub 1 as a whole apply an axial downward force to the sealing rotating structure 3, causing the second annular sealing lip 3211 to unfold, ensuring a sealing effect between the second annular sealing lip 3211 and the water inlet structure 4.

[0114] Regarding the control of the circulating water circuit, during washing and rinsing, the water pump 7 is turned on and the inlet valve on the circulating water pipe is opened, controlling the water tank 2 to circulate water into the washing tub 1; during the spin-drying process, the water pump 7 is turned off and the inlet valve on the circulating water pipe is closed, so the water tank 2 cannot circulate water into the washing tub 1.

[0115] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A washing device, comprising, case; A washing tub is located at the center inside the housing; The impeller is located at the bottom of the washing tub; A water inlet structure, connected to the washing tub, is used to introduce water into the washing tub; Its characteristic is that it also includes, The sealed rotary structure is a hollow structure, located on the bottom wall of the washing tub, on the outer periphery of the washing tub's rotating shaft. It is rotatably and sealed to the water outlet of the water inlet structure, and communicates with both the washing tub and the water inlet structure. It cooperates with the water inlet structure to allow water to enter the washing tub from the outside. The sealed rotary structure includes a first section of a tubular structure, which is fixedly located on the inner side of the bottom wall of the washing tub and configured as the water outlet of the sealed rotary structure for allowing water to enter the washing tub. The impeller includes, The impeller is configured as the main body of the impeller; The stirring rod has a hollow structure and is fixedly installed at the central axis of the impeller. One end of the stirring rod, which is connected to the impeller, extends towards the bottom of the impeller, penetrates the bottom wall of the impeller, and is rotatably connected to the first section of the sealed rotary structure. The sealed rotary structure is connected to the stirring rod through the first section.

2. The washing device according to claim 1, characterized in that, The sealing rotary structure also includes a second section, which is a tubular structure, fixedly installed on the outside of the bottom wall of the washing tub and coaxially arranged with the washing tub, for sealing and rotating connection with the water inlet structure; the second section is configured as the water inlet end of the sealing rotary structure.

3. A washing device according to claim 2, characterized in that, Both the first and second sections are integrally formed with the bottom wall of the washing tub.

4. A washing device according to claim 2, characterized in that, The bottom wall of the washing tub is provided with a water inlet, located inside the sealed rotary structure, connecting the first section and the second section, and cooperating with the sealed rotary structure to allow water to flow from the outside into the washing tub.

5. A washing device according to claim 4, characterized in that, The water inlet is located on the outer periphery of the rotating shaft; At least the outlet end of the water inlet structure is an annular structure, and the inner ring of the annular structure is hollow, so that the inner and outer rings of the annular structure can form an annular water passage that communicates with the water inlet through the rotating shaft.

6. A washing device according to claim 1, characterized in that, The first section of the sealing rotary structure is rotatably connected to the impeller seal.

7. A washing device according to claim 6, characterized in that, The first segment is coaxially arranged with the washing tub and is rotatably and sealed to the central shaft of the impeller.

8. A washing device according to claim 1, characterized in that, The end of the stirring rod away from the impeller is configured as the upper end of the stirring rod, extending axially toward the inlet side of the washing tub, extending at least to the upper middle part of the washing tub. The upper end of the stirring rod is provided with multiple water spray nozzles along the axial direction of the stirring rod, configured such that the range of the water jets sprayed from the nozzles gradually increases from bottom to top.

9. A washing device according to claim 8, characterized in that, The stirring rod has multiple perforations on its peripheral wall below the water nozzle for spraying water outward from the cavity of the stirring rod.

10. A washing device according to any one of claims 1-9, characterized in that, It also includes a water tank, which is coaxially disposed between the housing and the washing tub; the washing tub has a through hole in its wall, which communicates with the water tank. The water inlet end of the water inlet structure is connected to the water holding tank. The water inlet structure and the sealing rotary structure work together to circulate washing water from the water holding tank into the washing tank. The water inlet structure is configured as a circulating water pipe.

11. A washing device according to claim 2, characterized in that, The sealed rotary structure also includes, The first sealing part has a deformable structure and is disposed on the first segment, with at least a portion of the structure located on the outer wall of the first segment; The second sealing part has a deformable structure and is disposed on the second section, with at least a portion of the structure located on the inner wall of the second section, for sealing connection with the water inlet structure.

12. A washing device according to claim 11, characterized in that, The sealing rotary structure is a variable diameter tubular structure, with the diameter of the first section being smaller than that of the second section.

13. A washing device according to claim 11 or 12, characterized in that, The first sealing portion includes, The first annular sealing lip is disposed on the outer peripheral wall of the first section and is inclined along the axial direction of the first section toward the side away from the bottom wall of the washing tub. The first mounting groove is disposed on the inner peripheral wall of the first section and is used to install the elastic element so as to cooperate with the elastic element to apply a radially outward force to the peripheral wall at that location. And / or, the second sealing portion includes, The second annular sealing lip is disposed on the inner peripheral wall of the second section and is inclined along the axial direction of the second section toward the side away from the bottom wall of the washing tub. The second mounting groove is disposed on the outer peripheral wall of the second section and is used to install the elastic element so as to cooperate with the elastic element to apply a radially inward force to the peripheral wall at that location.

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