CN112227022B - Water inlet structure and washing machine - Google Patents
Water inlet structure and washing machine Download PDFInfo
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- CN112227022B CN112227022B CN201910574028.9A CN201910574028A CN112227022B CN 112227022 B CN112227022 B CN 112227022B CN 201910574028 A CN201910574028 A CN 201910574028A CN 112227022 B CN112227022 B CN 112227022B
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- transmission shaft
- cavity
- washing machine
- inner cylinder
- dynamic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/088—Liquid supply arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention relates to a water inlet structure, which comprises a transmission shaft, wherein the inside of the transmission shaft is hollow to form a water inlet flow passage, the water inlet end of the transmission shaft is correspondingly inserted into a cavity defined by a dynamic sealing seat, and a circle of dynamic sealing ring is arranged at the corresponding insertion joint of the transmission shaft and the dynamic sealing seat. The invention also relates to a washing machine which is provided with the water inlet structure, the transmission shaft is coaxially arranged at the bottom of the inner barrel, the water outlet end of the transmission shaft is fixedly connected with the inner barrel, the water outlet end of the hollow flow passage in the transmission shaft is communicated with the inside of the inner barrel, and a cavity surrounded by the dynamic sealing seat is communicated with a water inlet pipe of the washing machine. Through the arrangement, the inflow water flow of the washing machine flows into the cavity surrounded by the dynamic seal seat along the water inlet pipe and then flows into the inner barrel through the water inlet flow channel formed by the hollow transmission shaft, and in the process, the transmission shaft is connected with the dynamic seal seat in an inserting manner so as to achieve the purpose of feeding water into the rotary inner barrel of the washing machine.
Description
Technical Field
The invention belongs to the technical field of washing machines, particularly relates to a water inlet structure, further relates to a washing machine with the water inlet structure, and particularly relates to a washing machine with a rotatable water containing inner cylinder in a washing process.
Background
In the prior art, a drum washing machine generally comprises an inner drum and an outer drum which are mutually sleeved, wherein the outer drum is sealed and used for containing water, and the inner drum is used for containing clothes and beating and washing the clothes by rotating the inner drum; meanwhile, the inner barrel is provided with dehydration holes, so that water in the outer barrel flows into the inner barrel through the dehydration holes to soak the clothes in the inner barrel, the water in the inner barrel flows out of the outer barrel through the dehydration holes, and moisture on the clothes in the inner barrel is discharged to the outer barrel through the dehydration holes when the inner barrel rotates at a high speed, so that the aim of washing the clothes is fulfilled.
However, because the inner cylinder and the outer cylinder are mutually sleeved, dirt is easily accumulated between the inner cylinder and the outer cylinder in the use process of the washing machine; meanwhile, because the inner drum and the outer drum are mutually sleeved, a user cannot clean the outer wall of the inner drum and the inner wall of the outer drum, so that bacteria in the washing machine are increased, and the washing efficiency of the washing machine and the cleanliness of washed clothes are reduced.
Meanwhile, in the existing washing machine, the outer cylinder is sleeved outside the inner cylinder, and clothes are beaten and washed through rotation of the inner cylinder in the washing process of the washing machine, so that the washing capacity of the washing machine is based on the inner cylinder, the utilization rate of the internal space of the washing machine is low, and the washing capacity of the washing machine cannot be expanded on the existing basis.
In view of this, how to provide a washing machine, so as to integrate the inner and outer drums, and make the inner drum be a sealed container, which can not only contain water and clothes, but also rotate to beat the clothes for washing; meanwhile, because the washing machine is not provided with the outer cylinder or the outer cylinder and the washing machine shell are integrally arranged, the inner cylinder of the washing machine can be expanded to expand the washing capacity of the washing machine, and the development of the washing machine becomes a hotspot.
However, since the inner tub is not only used for containing washing water, but also rotated to beat and clean the clothes in the tub, how to arrange a water inlet structure suitable for the washing machine becomes a difficult problem to be solved urgently.
The present application is particularly proposed in view of the above technical drawbacks.
Disclosure of Invention
The invention aims to provide a water inlet structure to realize the purpose of supplying water to a rotating part; another objective of the present invention is to provide a water inlet structure of a washing machine, so as to achieve the purpose of directly guiding the washing water into the inner tub of the washing machine.
In order to solve the technical problems and achieve the technical effects, the basic design idea of the technical scheme adopted by the invention is as follows:
the water inlet structure of washing machine includes one hollow driving shaft with water inlet channel, one cavity surrounded by movable sealing seat and with water inlet end inserted correspondingly, and one circle of movable sealing ring installed in the inserting position between the driving shaft and the movable sealing seat.
Further, the movable sealing ring comprises a sealing lip, the periphery wall of the sealing lip is in contact with the inner wall of the plug socket of the movable sealing seat in a fitting mode, the inner periphery wall of the sealing lip is provided with supporting ribs extending in a radial protruding mode, and the extending ends of the supporting ribs are in movable sealing contact with the outer wall of the insertion end of the transmission shaft.
Furthermore, a plurality of support ribs are arranged at intervals on the inner periphery of the sealing lip of the movable sealing ring, and the extension end of each support rib is in sealing contact with the outer wall of the insertion end of the transmission shaft;
furthermore, the extending ends of the supporting ribs are connected through connecting ribs.
Furthermore, the inside skeleton of inlaying the rigidity material and constituting of seal lip, the skeleton is for following the continuous, or the arc structure of interval extension of dynamic seal circle circumferential direction.
Further, the dynamic seal seat comprises a first cavity and a second cavity which are communicated, the first cavity is a cylindrical cavity which is coaxially arranged with the transmission shaft, the second cavity is closed at one end and communicated with the first cavity at the other end, the radial width of the first cavity is larger than that of the second cavity, and the corresponding ends of the first cavity and the second cavity are arranged on the same vertical surface and are connected through a connecting wall; the transmission shaft is inserted from one end of the cylindrical first cavity far away from the second cavity and props against the connecting wall connecting the first cavity and the second cavity.
Furthermore, one end face, close to the second cavity, of the dynamic sealing ring is provided with at least one circle of dynamic sealing ribs protruding in the radial direction, and protruding ends of the dynamic sealing ribs are in sealing contact with the connecting wall.
Further, the opening of the insertion end of the transmission shaft is at least partially overlapped with the communication part of the first cavity and the second cavity.
Further, a bearing for limiting and supporting the insertion end of the transmission shaft is arranged on the dynamic sealing seat; preferably, the bearing and the dynamic sealing ring are sequentially arranged along the direction that the transmission shaft is inserted into the bearing seat, and the bearing is positioned on the outer side of the cavity surrounded by the dynamic sealing seat.
Furthermore, the bearing is arranged in the dynamic sealing ring, and is an annular sliding bearing with the outer periphery provided with tooth profiles and the inner periphery presenting a smooth cambered surface; the insertion end of the transmission shaft correspondingly penetrates through the bearing and is in limit contact with the bearing, and the periphery of the bearing is in limit connection with the inner peripheral wall of the sealing lip of the movable sealing ring.
Furthermore, the insertion end of the transmission shaft is sequentially provided with a meshing part, a fixing part and a sliding part along the insertion direction, radially convex meshing teeth are distributed on the peripheral wall of the meshing part, external threads are arranged on the peripheral wall of the fixing part, the peripheral wall of the sliding part is a smooth arc surface, and at least part of the sliding part of the transmission shaft correspondingly penetrates through the dynamic seal ring and is inserted into the cavity surrounded by the dynamic seal seat.
Furthermore, the rotor of the driving motor of the washing machine is coaxially inserted on the transmission shaft, and the rotor is correspondingly meshed with the meshing teeth of the meshing part of the transmission shaft to form connection rotating around the shaft.
Further, the rotor is directly meshed with the external thread of the transmission shaft fixing part, or a nut is sleeved outside the transmission shaft and meshed with the external thread of the transmission shaft fixing part so as to fix the rotor and the transmission shaft in the radial direction of the transmission shaft.
The invention also aims to provide a washing machine which is provided with any one of the water inlet structures, wherein the transmission shaft is coaxially arranged at the bottom of the inner cylinder, the water outlet end of the transmission shaft is fixedly connected with the inner cylinder, the water outlet end of the hollow flow passage in the transmission shaft is communicated with the inside of the inner cylinder, and the chamber surrounded by the dynamic sealing seat is communicated with the water inlet pipe of the washing machine.
Furthermore, the inner cylinder forms a sealed water container in the washing process of the washing machine, an inner cylinder supporting piece connected with the shell of the washing machine through a hanging spring and/or a damping piece is arranged outside the inner cylinder, and the transmission shaft penetrates through the inner cylinder supporting piece to rotatably install the inner cylinder on the inner cylinder supporting piece; the dynamic seal seat is fixedly arranged on the inner cylinder supporting piece.
Compared with the washing machine in the prior art, the washing machine of the invention has the following beneficial effects:
through the arrangement, a communication channel is formed between the rotating transmission shaft and the fixed dynamic seal seat, so that the effect of introducing the water inflow of the washing machine into the rotating component is realized; meanwhile, the movable sealing ring is arranged at the splicing position so as to achieve the effects of effectively sealing the splicing position of the transmission shaft and preventing water leakage.
The water inlet structure is arranged on the washing machine, so that the inflow water of the washing machine flows into a cavity surrounded by the movable sealing seat along the water inlet pipe and then flows into the inner cylinder through the inflow channel formed by the hollow transmission shaft, in the process, the hollow inflow channel of the rotary transmission shaft is communicated with the cavity surrounded by the immovable movable sealing seat due to the splicing connection between the transmission shaft and the movable sealing seat, and then a channel communicated with the rotating part and the fixed part is formed, so that the aim of guiding the inflow water of the washing machine into the rotary inner cylinder is fulfilled.
Meanwhile, the invention has simple structure and obvious effect and is suitable for popularization and use.
In order to make the design concept of the technical solution of the present invention clearer and facilitate further understanding of the beneficial effects brought by the technical solution, some specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 and 2 are schematic diagrams of water inlet structures of a washing machine in different viewing angles according to an embodiment of the invention;
FIGS. 3 and 4 are schematic views of the cross-sectional structures B-B of FIG. 1 in various embodiments of the present invention;
FIG. 5 and FIG. 6 are schematic views of different perspective explosion structures of the water inlet structure of the washing machine according to the embodiment of the present invention
Fig. 7 is a schematic structural view of a washing machine in the same embodiment of the present invention.
The drawing is marked with: 1. inner tube, 2, shell, 3, inner tube support, 4, door closure, 5, driving motor, 6, washing normal closed hole, 8, lifting rib, 9, centrifugal valve, 21, inner tube shaft, 22, water inlet pipe, 23, dynamic seal seat, 24, water inlet channel, 25, dynamic seal ring, 26, bearing, 27, chamber, 28, seal lip, 29, support rib, 30, connecting part, 31, first chamber, 32, second chamber, 33, framework, 34, seal rib, 211, sliding part, 212, fixing part, 213, meshing part, 101, inner tube opening, 102, inner tube bottom, 103, inner tube side wall.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by those skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, 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 drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixed or detachable or integral; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 7, the embodiment of the present invention describes a washing machine, the washing machine includes a housing 2, an inner cylinder 1 is provided in the housing 2, an axis of the inner cylinder 1 extends horizontally or inclines downwards from front to back, an inner cylinder opening 101 is provided at a front end of the inner cylinder 1 for opening, an inner cylinder bottom 102 is provided at a rear end for sealing, and an inner cylinder sidewall 103 connects the inner cylinder opening 101 and the inner cylinder bottom 102 to form the inner cylinder 1; the wall of the inner cylinder 1 is not provided with a through hole, so that the inner part of the inner cylinder 1 forms a sealed container only with an opening at the front part. Meanwhile, the front end of the washing machine shell 2 is provided with a door cover 4 which can be opened outwards, so that the aim of closing the inner cylinder opening 101 after the door cover 4 is closed and throwing clothes into the inner cylinder 1 from the inner cylinder opening 101 after the door cover 4 is opened is fulfilled. The rear end of the inner cylinder 1 is arranged in the washing machine shell 2 through the inner cylinder supporting piece 3, the inner cylinder supporting piece 3 and the rear end of the inner cylinder 1 are coaxially arranged, the upper end and the lower end of the inner cylinder supporting piece 3 are respectively bent towards the direction of a cylinder opening at the front end of the inner cylinder 1, the bent part at least extends to the middle part of the inner cylinder 1, and the upper bent part and the lower bent part are respectively connected with the washing machine shell 2 through the damping hanging spring and the damping supporting rod so as to achieve the purpose that the inner cylinder supporting piece 3 can be arranged in the washing machine shell 2 in a vibrating manner; meanwhile, the center of the inner drum bottom 102 is coaxially arranged with the motor shaft of the driving motor 5 of the washing machine to drive the inner drum 1 to rotate, and both the inner drum 1 and the driving motor 5 are fixedly arranged on the inner drum support 3. Preferably, the inner cylinder bottom 102 and the driving motor 5 are respectively disposed at two sides of the inner cylinder support 3, the driving motor 5 is fixedly connected to the inner cylinder support 3, a motor shaft of the driving motor 5 passes through the inner cylinder support 3 via a bearing and is coaxially and fixedly connected to the inner cylinder bottom 102, and the motor shaft of the driving motor 5 can rotate relative to the inner cylinder support 3, so as to achieve the purpose that the inner cylinder 1 and the driving motor 5 are mounted on the inner cylinder support 3, and the inner cylinder 1 can independently rotate under the action of the driving motor 5 to wash the internal clothes. Preferably, the motor shaft of the drive motor 5 directly forms the inner cylinder shaft 21, and the inner cylinder shaft 21 is coaxially and fixedly connected with the inner cylinder bottom 102 of the inner cylinder 1.
In addition, the washing machine in the embodiment of the invention can be any washing machine in the prior art, which is provided with a door cover to close the opening of the inner cylinder and then the inner cylinder forms a sealed container, so that when the washing machine executes a dehydration program, the inner cylinder is controlled to rotate at a high speed, water flow separated from clothes in the inner cylinder is smoothly discharged out of the inner cylinder, and the aim of normally executing the dehydration program on the washing machine with the non-porous inner cylinder is further achieved. Therefore, the washing machine in the embodiment of the present invention is not limited to the structure shown in the drawings, for example: moreover, the existing common washing machine can be adopted, and only the washing machine inner barrel 1 is required to be set to be a washing machine which does not have a dehydration hole and forms a sealed container after the door cover 4 closes the inner barrel opening 101.
Meanwhile, the inner barrel is arranged to be a sealed container after the door cover is buckled, and the washing machine is used for washing, so that clothes only contact with washing water in the sealed inner barrel in the washing process, the phenomenon that the washing water between the inner barrel and the outer barrel flows into the inner barrel to pollute the clothes is avoided, the washing cleanliness of the washing machine is greatly improved, and the phenomenon that the clothes are not thoroughly washed by the washing machine due to the pollution of the washing water between the inner barrel and the outer barrel is avoided.
In the embodiment of the invention, in order to feed water into the inner barrel 1 of the washing machine, the following settings are carried out:
as shown in fig. 1 to 6, a water inlet structure of a washing machine includes a driving shaft 21 having a hollow interior to form a water inlet passage 25; the water inlet end of the transmission shaft 21 is correspondingly inserted into a cavity 27 defined by the dynamic seal seat 23, a circle of dynamic seal ring 25 is installed at the corresponding insertion position of the transmission shaft 21 and the dynamic seal seat 23, and a bearing 26 for limiting and supporting the insertion end of the transmission shaft 21 is installed on the dynamic seal seat 23. Through the arrangement, a communication channel is formed between the rotating transmission shaft and the fixed dynamic seal seat, so that the effect of introducing the water inflow of the washing machine into the rotating part is realized; meanwhile, the dynamic sealing ring is arranged at the inserting position so as to achieve the effects of effectively sealing the inserting position of the transmission shaft and preventing water leakage.
In the embodiment of the invention, the washing machine is provided with the water inlet structure, the transmission shaft 21 is coaxially arranged at the bottom 101 of the inner cylinder, the water outlet end of the transmission shaft 21 is fixedly connected with the inner cylinder 1, the water outlet end of the hollow flow passage 25 in the transmission shaft 21 is communicated with the inner part of the inner cylinder 1, the cavity 27 enclosed by the movable sealing seat 23 is communicated with the water inlet pipe 22 of the washing machine, so that the inflow water of the washing machine flows into the cavity enclosed by the movable sealing seat along the water inlet pipe and then flows into the inner cylinder through the inflow flow passage formed by the hollow of the transmission shaft, and in the process, the hollow inflow flow passage of the rotating transmission shaft is communicated with the cavity enclosed by the stationary movable sealing seat due to the splicing connection between the transmission shaft and the movable sealing seat, so that the flow passage communicated with the rotating part and the stationary part is formed, and the aim of guiding the inflow water of the washing machine into the rotating inner cylinder is fulfilled.
In the embodiment of the invention, a sealed water container is formed in the inner cylinder 1 in the washing process of the washing machine, an inner cylinder supporting piece 3 connected with the shell of the washing machine through a hanging spring and/or a damping piece is arranged outside the inner cylinder 1, a transmission shaft 21 penetrates through the inner cylinder supporting piece 3, and the inner cylinder 1 is rotatably arranged on the inner cylinder supporting piece 3; the dynamic seal holder 23 is fixedly mounted on the inner cylinder support 3. The inner cylinder support in the embodiment of the present invention may be an outer cylinder in which an inner cylinder is sleeved and installed, or may be a structural member having only a support and installation function in another form, for example: a support frame which is arranged at the rear side of the bottom of the inner cylinder and extends vertically.
In the embodiment of the present invention, the dynamic seal ring 25 includes a circle of seal lip 28 whose outer peripheral wall is in contact with the inner wall of the socket of the dynamic seal seat 23, the inner peripheral wall of the seal lip 28 is provided with a radially protruding support rib 29, and the extending end of the support rib 29 is in sealing contact with the outer wall of the inserting end of the transmission shaft 21. In the embodiment of the present invention, the dynamic seal ring 25 is made of a material such as rubber that is elastically deformable, and the dynamic seal ring 25 is elastically deformed to seal the joint. In the embodiment of the present invention, the sealing lip 28 of the dynamic sealing ring 25 is made of a material that can generate elastic deformation by itself, for example: rubber, and the like. Preferably, in order to ensure the sealing effect, the outer diameter of the sealing lip 28 is larger than the inner diameter of the insertion opening of the dynamic sealing seat 23, so that the sealing lip is deformed after being pressed by the elasticity of the sealing lip and is further inserted and fixed on the dynamic sealing seat.
As shown in fig. 3, in the embodiment of the present invention, a plurality of support ribs 29 are arranged at intervals on the inner circumference of the sealing lip 28 of the dynamic sealing ring 25, and the extending end of each support rib 29 is in sealing contact with the outer wall of the insertion end of the transmission shaft 21. At least one support rib 29 is located at one end of the dynamic seal ring 25 facing the chamber 27 enclosed by the dynamic seal seat 23. In the embodiment of the present invention, the support rib 29 of the dynamic seal ring 25 is still made of a material that can generate elastic deformation by itself, such as: rubber, and the like. Through set up multichannel brace rod on the seal lip to make and form multichannel seal structure between movable seal circle and the transmission shaft, with the leakproofness that promotes movable seal seat, reduce the interior rivers of cavity and produce the probability of leaking.
Preferably, the extending ends of the supporting ribs 29 are connected via connecting ribs, so that the extending ends of the supporting ribs 29 are connected with each other to form a cylindrical sleeve in sealing contact with the outer wall of the transmission shaft 21, so that the movable sealing ring 25 and the transmission shaft 21 are in surface contact, and further the sealing performance is improved (not shown in the drawings).
As shown in fig. 4, in the embodiment of the present invention, a skeleton 33 made of a rigid material is embedded inside the sealing lip 28, and the skeleton 33 is an arc-shaped structure extending continuously or at intervals along the circumferential direction of the dynamic sealing ring 25. The framework is embedded in the sealing lip to improve the self rigidity of the sealing lip, so that the sealing lip cannot generate structural deformation after being stressed and extruded, and the self strength of the movable sealing ring can be ensured and the sealing performance of the movable sealing ring can be improved.
In the embodiment of the present invention, the dynamic seal seat 23 includes a first chamber 31 and a second chamber 32 which are communicated with each other, the first chamber 31 is a cylindrical chamber which is coaxially arranged with the transmission shaft 21, the second chamber 32 has one closed end and the other end communicated with the first chamber 31, the radial width of the first chamber 31 is greater than that of the second chamber 32, and the corresponding ends of the first chamber 31 and the second chamber 32 are arranged on the same vertical surface and connected with each other through a connecting wall 30; the transmission shaft 21 is inserted from one end of the cylindrical first chamber 31 remote from the second chamber 32 and abuts against a connecting wall connecting the first chamber 31 and the second chamber 32.
Preferably, as shown in fig. 6, an end surface of the dynamic seal ring 25 close to the second chamber 32 is provided with at least one circle of radially protruding seal ribs 34, and the protruding end of the seal rib 34 is in sealing contact with the connecting wall 30 to improve the sealing performance of the dynamic seal ring.
In the embodiment of the present invention, at least a portion of the opening of the insertion end of the transmission shaft 21 overlaps with the communication position between the first chamber 31 and the second chamber 32, so that the inlet water flowing through the chamber 27 surrounded by the automatic sealing seat 23 can directly flow into the hollow inlet channel 24 of the transmission shaft 21, and the inlet water flow is smoother.
In the embodiment of the invention, the bearing 26 and the dynamic seal ring 25 are sequentially arranged along the direction that the transmission shaft 21 is inserted into the dynamic seal seat 23, and the bearing 26 is positioned at the outer side of the cavity 27 surrounded by the dynamic seal seat 25, so that the contact between the bearing and water flow in the cavity is avoided, and the service life of the bearing is prolonged.
In the embodiment of the invention, the bearing 26 is arranged in the dynamic seal ring 25, and the bearing 26 is an annular sliding bearing with the outer periphery provided with tooth profiles and the inner periphery presenting a smooth cambered surface; the insertion end of the transmission shaft 21 correspondingly penetrates through the bearing 26 and is in limit contact with the inner wall of the dynamic sealing seat 23, and the outer periphery of the bearing 26 is in limit connection with the inner wall of the sealing lip 28 of the dynamic sealing ring 25; preferably, the inner peripheral wall of the sealing lip 28 is provided with inner peripheral teeth which are engaged with the teeth formed on the outer periphery of the bearing correspondingly. Preferably, the bearing 26 and the support rib 29 arranged on the dynamic seal ring 25 are arranged in a staggered manner, so that the bearing 26 is directly wrapped in the dynamic seal ring 25, and the assembly is simplified.
In the embodiment of the present invention, the insertion end of the transmission shaft 21 is sequentially provided with the engaging portion 213, the fixing portion 212, and the sliding portion 211 along the insertion direction, radially protruding engaging teeth are arranged on the outer peripheral wall of the engaging portion 213, an external thread is arranged on the outer peripheral wall of the fixing portion 212, the outer peripheral wall of the sliding portion 211 is a smooth arc surface, and at least a part of the sliding portion 211 of the transmission shaft 21 correspondingly passes through the dynamic seal ring 25 and is inserted into the chamber 27 surrounded by the dynamic seal seat 23. The rotor of the washing machine motor is coaxially inserted on the transmission shaft 21, and the rotor is correspondingly meshed with the meshing teeth of the meshing part 213 of the transmission shaft 21 to form connection rotating around the shaft. The rotor is directly engaged with the external thread of the fixing portion 212 of the driving shaft 21 or a nut is externally fitted to the driving shaft 21 and engaged with the external thread of the fixing portion 212 of the driving shaft 21 to fix the rotor to the driving shaft 21 in the radial direction of the driving shaft 21.
In the embodiment of the invention, the inner cylinder 1 of the washing machine is provided with a washing normally closed hole 6, and the washing normally closed hole comprises: the hole is arranged on the inner cylinder and is arranged in a penetrating way so as to allow water flow to pass through; the centrifugal valve is arranged on the inner cylinder and correspondingly arranged at the hole, the valve core of the centrifugal valve is used for plugging the hole, and the valve core of the centrifugal valve is opened under the action of centrifugal force after the rotating speed of the inner cylinder reaches a set value. Preferably, the centrifugal valve further comprises an elastic member, and the elastic member is clamped between the valve core and the inner cylinder to provide a reset acting force for the valve core so as to push the valve core to block the hole. The centrifugal valve can be any valve body structure which can open the hole under the action of centrifugal force in the prior art.
In this embodiment, as shown in fig. 7, the washing normally closed hole 6 may be provided by providing a hole in the inner cylinder sidewall 103 and installing the centrifugal valve 9 inside the inner cylinder sidewall 103. Centrifugal valve 9 is including installing in the inboard support of inner tube 1, installs articulated balancing weight mutually on the support, and hole department is equipped with the plug post that can reciprocate, and the plug post is articulated mutually with the balancing weight, adds between plug post and the inner tube lateral wall 103 and holds reset spring to drive the balancing weight and remove to keeping away from 1 axis direction of inner tube 1 under the rotatory centrifugal force of inner tube 1, and then remove and open the hole to 1 axis direction of inner tube through articulated department pulling plug post.
Preferably, a lifting rib 8 protruding towards the center of the inner cylinder is installed on the inner side of the side wall 103 of the inner cylinder, the lifting rib 8 is hollow, and a water permeable hole communicating the inner cylinder 1 with the hollow is formed in the lifting rib 8. The holes of the washing normally closed hole 6 are arranged on the inner barrel side wall 103 corresponding to the lifting rib 8, and the inner hollow part of the lifting rib 8 is communicated with the outer part of the inner barrel 1. The centrifugal valve is provided in the hollow portion inside the lifting rib 8.
Of course, the washing machine in the embodiment of the invention can also be the existing common washing machine, and the water inlet structure can also be directly applied to form the effect of feeding water into the outer cylinder of the water container and directly spraying and contacting the clothes contained in the inner cylinder.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A washing machine characterized in that: the water inlet structure is installed and comprises a transmission shaft which is hollow inside and forms a water inlet flow passage, the water inlet end of the transmission shaft is correspondingly inserted into a cavity defined by the dynamic sealing seat, and a circle of dynamic sealing ring is installed at the corresponding insertion position of the transmission shaft and the dynamic sealing seat; the transmission shaft is coaxially arranged at the bottom of the inner barrel, the water outlet end of the transmission shaft is fixedly connected with the inner barrel, the water outlet end of a hollow flow passage in the transmission shaft is communicated with the interior of the inner barrel, and a cavity surrounded by the dynamic sealing seat is communicated with a water inlet pipe of the washing machine;
the dynamic seal seat comprises a first cavity and a second cavity which are communicated, the first cavity is a cylindrical cavity which is coaxially arranged with the transmission shaft, the second cavity has one closed end, the other end is communicated with the first cavity, the radial width of the first cavity is larger than that of the second cavity, and the corresponding ends of the first cavity and the second cavity are arranged on the same vertical surface and are connected through a connecting wall; the transmission shaft is inserted from one end of the cylindrical first cavity far away from the second cavity and props against a connecting wall connecting the first cavity and the second cavity;
an opening of the insertion end of the transmission shaft is at least partially overlapped with a communication part of the first cavity and the second cavity;
the dynamic seal seat is provided with a bearing for limiting and supporting the insertion end of the transmission shaft; a bearing and a dynamic sealing ring are sequentially arranged along the direction that the transmission shaft is inserted into the dynamic sealing seat, and the bearing is positioned on the outer side of a cavity surrounded by the dynamic sealing seat;
the inner cylinder forms a sealed water container in the washing process of the washing machine, an inner cylinder supporting piece connected with the shell of the washing machine through a hanging spring and/or a damping piece is arranged outside the inner cylinder, and a transmission shaft penetrates through the inner cylinder supporting piece to rotatably install the inner cylinder on the inner cylinder supporting piece; the dynamic seal seat is fixedly arranged on the inner cylinder supporting piece.
2. A washing machine as claimed in claim 1 wherein the dynamic seal comprises a ring of sealing lips having an outer peripheral wall in abutting contact with an inner wall of the socket of the dynamic seal holder, the inner peripheral wall of the sealing lips being provided with radially projecting support ribs having extended ends in dynamic sealing contact with the outer wall of the insertion end of the drive shaft.
3. A washing machine as claimed in claim 2 wherein the sealing lip is internally fitted with a framework of rigid material, the framework being of arcuate configuration extending continuously or at intervals in the circumferential direction of the dynamic seal.
4. A washing machine as claimed in any one of claims 1 to 3 wherein the dynamic seal is provided with at least one radially projecting dynamic sealing rib on an end face adjacent the second chamber, the projecting end of the dynamic sealing rib being in sealing contact with the connecting wall.
5. A washing machine as claimed in any one of claims 1 to 3 wherein the bearing is mounted in a dynamic seal ring, the bearing being an annular plain bearing having an outer periphery in which teeth are arranged and an inner periphery in which a smooth arc surface is formed; the insertion end of the transmission shaft correspondingly penetrates through the bearing and is in limit contact with the bearing, and the periphery of the bearing is in limit connection with the inner peripheral wall of the sealing lip of the movable sealing ring.
6. A washing machine as claimed in any one of claims 1 to 3 wherein the insertion end of the drive shaft is provided with a meshing portion, a fixed portion and a sliding portion in the order of insertion, the peripheral wall of the meshing portion is provided with radially projecting meshing teeth, the peripheral wall of the fixed portion is provided with external threads, the peripheral wall of the sliding portion is a smooth circular arc, and at least part of the sliding portion of the drive shaft is inserted into the chamber defined by the dynamic seal seat through the dynamic seal ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574028.9A CN112227022B (en) | 2019-06-28 | 2019-06-28 | Water inlet structure and washing machine |
| PCT/CN2020/095748 WO2020259317A1 (en) | 2019-06-28 | 2020-06-12 | Water inlet structure and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574028.9A CN112227022B (en) | 2019-06-28 | 2019-06-28 | Water inlet structure and washing machine |
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| Publication Number | Publication Date |
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| CN112227022A CN112227022A (en) | 2021-01-15 |
| CN112227022B true CN112227022B (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910574028.9A Active CN112227022B (en) | 2019-06-28 | 2019-06-28 | Water inlet structure and washing machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112227022B (en) |
| WO (1) | WO2020259317A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095831A1 (en) * | 2020-11-03 | 2022-05-12 | 青岛海尔滚筒洗衣机有限公司 | Water inlet structure for inner drum and drum washing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112227022A (en) | 2021-01-15 |
| WO2020259317A1 (en) | 2020-12-30 |
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Effective date of registration: 20220825 Address after: 400026 No.303, Block E, No.1 Gangcheng South Road, Jiangbei District, Chongqing Applicant after: Chongqing Haier Front-loading Washing Machine Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. Applicant before: Haier Zhijia Co.,Ltd. |
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