CN115874416A - Water inlet structure and washing machine - Google Patents
Water inlet structure and washing machine Download PDFInfo
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- CN115874416A CN115874416A CN202111134110.3A CN202111134110A CN115874416A CN 115874416 A CN115874416 A CN 115874416A CN 202111134110 A CN202111134110 A CN 202111134110A CN 115874416 A CN115874416 A CN 115874416A
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- inner cylinder
- water inlet
- dynamic
- periphery
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000005406 washing Methods 0.000 title claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 87
- 230000007704 transition Effects 0.000 claims description 15
- 238000010030 laminating Methods 0.000 claims description 4
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 210000001503 joint Anatomy 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses a water inlet structure and a washing machine, wherein the water inlet structure comprises an inner cylinder shaft and a dynamic seal seat, the inner cylinder shaft is hollow inside to form a water inlet flow channel, the dynamic seal seat is hollow inside to form a cavity, the water inlet end of the inner cylinder shaft is inserted into the cavity, a circle of dynamic seal ring is arranged on the periphery of the inner cylinder shaft, and a support for supporting the dynamic seal ring is arranged in the cavity between the periphery of the dynamic seal ring and the dynamic seal seat; the bracket is arranged in the cavity between the periphery of the dynamic seal ring and the dynamic seal seat and clamped between the periphery of the dynamic seal ring and the dynamic seal seat, so that the radial gap between the dynamic seal ring and the dynamic seal seat can be reduced, and the sealing property of the dynamic seal ring is improved; the washing machine is also provided with a water inlet structure, the inner barrel shaft is coaxially arranged at the bottom of the inner barrel, the water outlet end of the inner barrel shaft is fixedly connected with the inner barrel, the water outlet end of the water inlet flow passage in the inner barrel shaft is communicated with the inside of the inner barrel, and the cavity of the dynamic sealing seat is communicated with the water inlet pipe of the washing machine.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a water inlet structure and a washing machine.
Background
In the prior art, a drum washing machine generally comprises an inner drum for containing clothes, an inner drum supporting piece for supporting the inner drum, and a motor, wherein an inner drum shaft is arranged at the bottom of the inner drum and extends along the left and right directions of the inner drum; the inner cylinder support piece comprises an outer cylinder for containing washing water, the inner cylinder is rotatably assembled in the outer cylinder, and the inner cylinder is provided with dewatering holes, so that water in the outer cylinder flows into the inner cylinder through the dewatering holes to soak clothes in the inner cylinder, the water in the inner cylinder flows out of the dewatering holes to the outer cylinder, and moisture on the clothes in the inner cylinder is discharged to the outer cylinder through the dewatering holes when the inner cylinder rotates at a high speed, so that the aim of washing the clothes is fulfilled.
The inner barrel shaft in the existing roller washing machine is hollow, and water is fed into the inner barrel by communicating a water inlet pipe with the inner barrel shaft; the dynamic seal seat is arranged at the water inlet end of the inner cylinder shaft, a cavity is formed in the dynamic seal seat, the water inlet end of the inner cylinder shaft is inserted into the cavity of the dynamic seal seat, a circle of dynamic seal ring is arranged on the periphery of the inner cylinder shaft, and the dynamic seal ring is arranged in the cavity between the inner cylinder shaft and the dynamic seal ring, so that an axial gap exists between the dynamic seal seat and the dynamic seal ring, and the sealing performance of the dynamic seal ring is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art and provide a water inlet structure and a washing machine.
In order to solve the technical problems, the invention adopts the technical scheme that:
the invention provides a water inlet structure, which comprises an inner cylinder shaft and a dynamic seal seat, wherein the inner cylinder shaft is hollow inside to form a water inlet flow channel, the dynamic seal seat is hollow inside to form a cavity, the water inlet end of the inner cylinder shaft is inserted into the cavity, a circle of dynamic seal ring is arranged on the periphery of the inner cylinder shaft, and a support for supporting the dynamic seal ring is arranged in the cavity between the periphery of the dynamic seal ring and the dynamic seal seat.
Furthermore, the support is of an annular structure, the dynamic sealing seat is of a cylindrical structure, the support is sleeved on the outer periphery of the dynamic sealing ring, the inner periphery of the support is attached to the outer periphery of the dynamic sealing ring, and the outer periphery of the support is attached to the inner periphery of the dynamic sealing seat.
Furthermore, the axial cross section of the support is in an arc shape, one end of the outer periphery of the driven sealing ring in the axial direction extends to the other end of the outer periphery of the movable sealing ring in the inner periphery of the support, and the middle part of the outer periphery of the support in the axial direction is attached to the middle part of the inner periphery of the movable sealing seat in the axial direction.
Furthermore, a positioning groove matched with the axial middle part of the periphery of the support in shape is formed in the axial middle part of the inner periphery of the dynamic seal seat, and the axial middle part of the periphery of the support is embedded into the positioning groove.
Furthermore, a sealing element is arranged in a cavity between the periphery of the bracket and the dynamic sealing seat;
preferably, the seal is provided between the outer periphery of the holder and the inner periphery of the positioning groove.
Furthermore, the sealing element is an auxiliary dynamic sealing ring which is sleeved in the axial middle part of the periphery of the support, and the periphery of the auxiliary dynamic sealing ring is attached to the inner wall of the positioning groove;
preferably, the periphery of the auxiliary dynamic sealing ring extends from one end of the positioning groove to the other end of the positioning groove along the axial direction;
further preferably, the length of the outer circumference of the auxiliary dynamic seal ring extending in the axial direction is equal to the length of the inner circumference of the auxiliary dynamic seal ring extending in the axial direction.
Further, the cavity of the dynamic seal seat is divided into a first cavity and a second cavity along the inserting direction of the inner cylinder shaft, the first cavity is inserted into the first cavity, the second cavity is inserted into the second cavity, the radial size of the first cavity is larger than that of the second cavity, a transition wall is arranged between the first cavity and the second cavity, at least one circle of dynamic seal rib protruding axially is arranged on one end face of the dynamic seal ring, and one end face of the dynamic seal rib is attached to the transition wall.
Furthermore, a bearing for limiting and supporting the water inlet end of the inner cylinder shaft is arranged on the dynamic seal seat;
preferably, the bearing and the dynamic sealing ring are sequentially arranged along the direction of inserting the inner cylinder shaft into the dynamic sealing seat cavity, and the bearing is positioned on the outer side of the dynamic sealing seat cavity.
Furthermore, a fastener for clamping the dynamic sealing rib on the transition wall is arranged on the dynamic sealing seat;
preferably, the fastener includes bolt and nut, and the bolt is passed through the bearing along the axial and is pressed from both sides tight laminating with an end face of movable seal circle, and the nut and bolt spiro union just are with an end face butt of bearing.
The invention also provides a washing machine, which is provided with the water inlet structure provided by the technical scheme, the inner cylinder shaft is coaxially arranged at the bottom of the inner cylinder, the water outlet end of the inner cylinder shaft is fixedly connected with the inner cylinder, the water outlet end of the water inlet flow passage in the inner cylinder shaft is communicated with the inner part of the inner cylinder, and the cavity of the dynamic seal seat is communicated with the water inlet pipe of the washing machine.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The support is arranged in the cavity between the periphery of the dynamic seal ring and the dynamic seal seat and clamped between the periphery of the dynamic seal ring and the dynamic seal seat, so that the radial gap between the dynamic seal ring and the dynamic seal seat can be reduced, and the sealing property of the dynamic seal ring is improved.
The following describes embodiments of the present invention in further detail 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.
Fig. 1 is a schematic structural diagram of a water inlet structure provided in an embodiment of the present invention;
fig. 2 is a cross-sectional view of a water inlet structure according to an embodiment of the present invention.
Icon: 1-an inner cylinder shaft; 11-a water inlet channel; 12-a sliding part; 13-a fixed part; 14-an engagement portion; 2-moving a sealing seat; 21-a chamber; 211-a first chamber; 212-a second chamber; 213-positioning the groove; 214-a transition wall; 3-moving a sealing ring; 31-sealing lip; 4-a scaffold; 5-a seal; 51-auxiliary dynamic sealing ring; 6-a bearing; 7-dynamic sealing ribs; 8-a fastener; 81-bolt; 9-water inlet pipe.
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 rather to illustrate it for those skilled in the art by 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 the orientations or positional relationships 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, 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 and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 and fig. 2, the present invention provides a water inlet structure, which includes an inner cylinder shaft 1 with a hollow interior forming a water inlet channel 11 and a dynamic seal seat 2 with a hollow interior forming a chamber, wherein a water inlet end of the inner cylinder shaft 1 is inserted into the chamber 21, a circle of dynamic seal ring 3 is arranged on the outer periphery of the inner cylinder shaft 1, and a support 4 supporting the dynamic seal ring 3 is installed in the chamber 21 between the outer periphery of the dynamic seal ring 3 and the dynamic seal seat 2.
In the embodiment of the invention, the bracket 4 is arranged in the cavity 21 between the periphery of the dynamic seal ring 3 and the dynamic seal seat 2, and the bracket 4 is clamped between the periphery of the dynamic seal ring 3 and the dynamic seal seat 2, so that the radial gap between the dynamic seal ring 3 and the dynamic seal seat 2 can be reduced, and the sealing performance of the dynamic seal ring 3 is improved.
The support 4 is made of a rigid material, and specifically, the material of the support 4 may be alloy steel, carbon steel, or the like.
The water inlet structure is used for washing equipment, and particularly, the water inlet structure is applied to a washing machine, an inner cylinder shaft 1 is coaxially arranged at the bottom of the inner cylinder, the water outlet end of the inner cylinder shaft 1 is fixedly connected with the inner cylinder, the water outlet end of a water inlet flow channel 11 in the inner cylinder shaft 1 is communicated with the inner cylinder, a cavity 21 of a dynamic seal seat 2 is communicated with a water inlet pipe 9 of the washing machine, when water enters, the water flows into the water inlet flow channel 11 of the inner cylinder shaft 1 from the water inlet end of the washing machine water inlet pipe 9 through the inner cylinder shaft 1 and then flows into the inner cylinder through the water outlet end of the inner cylinder shaft 1, and in the process, as the inner cylinder shaft 1 is connected with the dynamic seal seat 2 in an inserting manner, the hollow water inlet flow channel 11 of the rotating inner cylinder shaft 1 is communicated with the cavity 21 surrounded by the immovable dynamic seal seat 2, so as to form a flow channel communicated with a rotating part and a fixed part 13, and the purpose of guiding the water inlet flow of the washing machine into the rotating inner cylinder is achieved.
The washing machine comprises a shell, wherein an inner barrel is arranged in the shell, an inner barrel shaft 1 line extends horizontally or is arranged in a manner of gradually inclining downwards from front to back, the front end of the inner barrel is an inner barrel opening with an opening, the rear end of the inner barrel is an inner barrel bottom with a sealing arrangement, and the inner barrel opening is connected with the inner barrel bottom by the side wall of the inner barrel to form the inner barrel;
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.
The side wall of the inner cylinder is not provided with a through hole, so that the inner part of the inner cylinder forms a sealed container only with an opening at the front part. Meanwhile, a door body capable of closing or opening the inner cylinder opening is installed at the front end of the shell of the washing machine, the door body opens the inner cylinder opening, and clothes are thrown into the inner cylinder through the inner cylinder opening; the rear end of the inner barrel is arranged in the shell of the washing machine through an inner barrel supporting piece, the inner barrel supporting piece and the rear end of the inner barrel are coaxially arranged, the upper end and the lower end of the inner barrel supporting piece are respectively bent towards the barrel mouth direction of the front end of the inner barrel, the bent part at least extends to the middle part of the inner barrel, and the upper bent part and the lower bent part are respectively connected with the shell of the washing machine through a damping hanging spring and a damping supporting rod so as to realize the aim that the inner barrel supporting piece can be arranged in the shell of the washing machine in a vibrating way; meanwhile, the center of the bottom of the inner cylinder is coaxially arranged with a motor shaft of a driving motor of the washing machine so as to drive the inner cylinder to rotate, and the inner cylinder and the driving motor are fixedly arranged on the inner cylinder supporting piece. Preferably, the inner cylinder bottom and the driving motor are respectively arranged at two sides of the inner cylinder support part, the driving motor is fixedly connected with the inner cylinder support part, a motor shaft of the driving motor penetrates through the inner cylinder support part through a bearing 6 and is coaxially and fixedly connected with the inner cylinder bottom, and a motor shaft of the driving motor can rotate relative to the inner cylinder support part, so that the purposes that the inner cylinder and the driving motor are arranged on the inner cylinder support part and the inner cylinder can independently rotate under the action of the driving motor to wash the internal clothes are achieved. Preferably, a motor shaft of the driving motor directly forms the inner cylinder shaft 1, and the inner cylinder shaft 1 is coaxially and fixedly connected with the inner cylinder bottom of the inner cylinder.
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 for closing the opening of the inner barrel and then the inner barrel forms a sealed container, so that when the washing machine executes a dehydration program, the inner barrel is controlled to rotate at a high speed, water flow separated from clothes in the inner barrel is smoothly discharged out of the inner barrel, and the aim of normally executing the dehydration program on the washing machine with the inner barrel without holes is further fulfilled. Therefore, the washing machine in the embodiment of the present invention is not limited to the structure shown in the drawings, for example: the existing common washing machine can be adopted, and the washing machine with the sealed container formed by closing the opening of the inner barrel without the dewatering hole and the door cover is only required to be arranged on the inner barrel of the washing machine.
A communication channel is formed between the rotating inner cylinder shaft 1 and the fixed dynamic seal seat 2, so that the effect of introducing the water inlet flow of the washing machine into the rotating part is realized; meanwhile, the movable sealing ring 3 is arranged at the inserting position so as to achieve the effects of effectively sealing the inserting position of the inner cylinder shaft 1 and preventing water leakage.
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 an inner cylinder shaft 1 penetrates through the inner cylinder supporting piece to rotatably install the inner cylinder on the inner cylinder supporting piece; the dynamic seal seat 2 is fixedly arranged on the inner cylinder supporting piece. The inner cylinder support in the embodiment of the present invention may be an outer cylinder that encases and installs an inner cylinder, or may be other structural members that only have a supporting and mounting function, for example: the supporting frame is arranged at the rear side of the bottom of the inner cylinder and extends vertically.
As shown in fig. 2, in the embodiment of the present invention, the support 4 is an annular structure, the dynamic seal seat 2 is a cylindrical structure, the support 4 is sleeved on the outer periphery of the dynamic seal ring 3, the inner periphery of the support 4 is attached to the outer periphery of the dynamic seal ring 3, and the outer periphery of the support 4 is attached to the inner periphery of the dynamic seal seat 2.
In the embodiment of the invention, the support 4 is of an annular structure, the dynamic seal seat 2 is of a cylindrical structure, and preferably, the support 4, the dynamic seal seat 2 and the inner cylinder shaft 1 are coaxially arranged;
specifically, the support 4 is sleeved on the outer periphery of the dynamic seal ring 3 through an opening on the support 4, the inner periphery of the support 4 is attached to the outer periphery of the dynamic seal ring 3, the inner periphery of the support 4 is attached to the inner periphery of the dynamic seal seat 2, so that the support 4 is clamped between the dynamic seal ring 3 and the dynamic seal seat 2, the support 4 enables the dynamic seal ring 3 to be tightly arranged in a cavity 21 between the dynamic seal seat 2 and an inner shaft, and a radial gap between the dynamic seal ring 3 and the dynamic seal seat 2 is reduced;
as shown in fig. 2, specifically, the axial cross section of the support 4 is arcuate, and the inner periphery of the support 4 extends from one end of the outer periphery of the dynamic seal ring 3 to the other end of the outer periphery of the dynamic seal ring 3 along the axial direction, so that the support area of the support 4 for the dynamic seal ring 3 can be increased, and the stability of the dynamic seal ring 3 in the cavity of the dynamic seal seat 2 is improved; the axial middle part in support 4 periphery and the axial middle part laminating setting in the interior week of moving seal receptacle 2 improve the laminating intensity between support 4 and the moving seal receptacle 2.
As shown in fig. 2, furthermore, the middle part of the axial direction of the inner periphery of the dynamic seal seat 2 is provided with a positioning groove 213 which is matched with the shape of the middle part of the axial direction of the outer periphery of the support 4, the middle part of the axial direction of the outer periphery of the support 4 is embedded into the positioning groove 213, the positioning groove 213 on the dynamic seal seat 2 can position the support 4, the dislocation of the dynamic seal ring 3 when the inner cylinder shaft 1 rotates is avoided, the stability of the dynamic seal ring 3 in the dynamic seal seat 2 is improved, and the sealing performance of the dynamic seal ring 3 is improved.
In the embodiment of the invention, a sealing element 5 is arranged in a cavity between the periphery of the bracket 4 and the dynamic sealing seat 2.
In the embodiment of the invention, a sealing element 5 is arranged in a cavity 21 between the periphery of the bracket 4 and the dynamic seal seat 2, and the sealing element 5 is made of flexible material, for example, the material of the sealing element 5 is rubber or the like;
specifically, the sealing element 5 is arranged between the outer periphery of the support 4 and the inner periphery of the positioning groove 213, and the sealing element 5 arranged in an interference manner is arranged between the outer periphery of the support 4 and the inner periphery of the positioning groove 213, so that the support 4 has certain automatic adjustment coaxiality on the dynamic seal seat 2, and the abrasion among the support 4, the dynamic seal seat 2 and the dynamic seal ring 3 is reduced.
As shown in fig. 2, further, the sealing element 5 is an auxiliary dynamic sealing ring 51, the auxiliary dynamic sealing ring 51 is sleeved in the middle of the outer periphery of the bracket 4 in the axial direction, the outer periphery of the auxiliary dynamic sealing ring 51 is attached to the inner wall of the positioning groove 213, the outer periphery of the auxiliary dynamic sealing ring 51 extends from one end of the positioning groove 213 to the other end of the positioning groove 213 in the axial direction, and the length of the outer periphery of the auxiliary dynamic sealing ring 51 extending in the axial direction is equal to the length of the inner periphery of the auxiliary dynamic sealing ring 51 extending in the axial direction.
As shown in fig. 2, in the embodiment of the present invention, the chamber 21 of the dynamic seal holder 2 is divided into a first chamber 211 into which the inner cylinder shaft 1 is inserted and a second chamber 212 into which the inner cylinder shaft 1 is inserted, a radial dimension of the first chamber 211 is larger than a radial dimension of the second chamber 212, a transition wall 214 is disposed between the first chamber 211 and the second chamber 212, at least one circle of dynamic seal rib 7 protruding axially is disposed on one end surface of the dynamic seal ring 3, and one end surface of the dynamic seal rib 7 is attached to the transition wall 214.
In the embodiment of the invention, the first chamber 211 is communicated with the second chamber 212, the water inlet end of the inner cylinder shaft 1 is inserted into the first chamber 211, the second chamber 212 is communicated with the water inlet pipe 9, both the first chamber 211 and the second chamber 212 are cylindrical chambers, the first chamber 211 and the inner cylinder shaft 1 are coaxially arranged, one axial end of the first chamber 211 is an open end and is used for inserting the water inlet end of the inner cylinder shaft 1, the other axial end of the first chamber 211 is provided with an opening communicated with the second chamber 212, the first chamber 211 and the second chamber 212 share the opening, the corresponding ends of the first chamber 211 and the second chamber 212 are arranged on the same vertical surface and are connected through the transition wall 214, and the inner cylinder shaft 1 is inserted from one end of the cylindrical first chamber 211 far away from the second chamber 212 and is abutted against the transition wall 214 connected with the first chamber 211 and the second chamber 212.
At least part of the opening of the insertion end of the inner cylinder shaft 1 is overlapped with the opening of the communication part of the first cavity 211 and the second cavity 212, so that the water inflow flowing through the cavity surrounded by the automatic sealing seat 2 can directly flow into the hollow water inflow channel 11 of the inner cylinder shaft 1, and the water inflow is smoother.
The arrangement of the dynamic sealing rib 7 can seal the axial gap between the dynamic sealing ring 3 and the dynamic sealing seat 2, and the sealing performance of the dynamic sealing ring 3 is improved.
As shown in fig. 2, in the embodiment of the present invention, a bearing 6 for limiting and supporting the water inlet end of the inner cylinder shaft 1 is installed on the dynamic seal seat 2.
In the embodiment of the invention, the bearing 6 and the dynamic seal ring 3 are sequentially arranged along the direction that the inner cylinder shaft 1 is inserted into the cavity of the dynamic seal seat 2, the bearing 6 is positioned at the outer side of the cavity of the dynamic seal seat 2, the bearing 6 is used for limiting and supporting the water inlet end of the inner cylinder shaft 1, and the axial end face of the bearing 6 can be matched with the dynamic seal seat 2 to clamp the dynamic seal ring 3, so that the dynamic seal ring 3 can be clamped between the bearing 6 and the dynamic seal seat 2, and the sealing performance of the dynamic seal ring 3 is provided;
the bearing 6 is arranged in the dynamic seal ring 3, and the bearing 6 is an annular sliding bearing 6 with the outer periphery provided with tooth profiles and the inner periphery presenting a smooth cambered surface; the insertion end of the inner cylinder shaft 1 correspondingly penetrates through the bearing 6 and is in limit contact with the inner wall of the dynamic sealing seat 2, and the periphery of the bearing 6 is in limit connection with the inner wall of the sealing lip 31 of the dynamic sealing ring 3; preferably, the inner peripheral wall of the sealing lip 31 is provided with inner peripheral teeth which are engaged with the teeth on the outer periphery of the bearing 6 correspondingly.
As shown in fig. 2, the insertion end of the inner cylinder shaft 1 is sequentially provided with a meshing part 14, a fixing part 13 and a sliding part 12 along the insertion direction, meshing teeth protruding in the radial direction are arranged on the outer peripheral wall of the meshing part 14, external threads are arranged on the outer peripheral wall of the fixing part 13, the outer peripheral wall of the sliding part 12 is a smooth arc surface, and at least part of the sliding part 12 of the inner cylinder shaft 1 correspondingly penetrates through the movable seal ring 3 and is inserted into a cavity surrounded by the movable seal seat 2. The rotor of the washing machine motor is coaxially inserted on the inner drum shaft 1, and the rotor is correspondingly meshed with the meshing teeth of the meshing part 14 of the inner drum shaft 1 to form connection rotating around the shaft. The rotor is directly meshed with the external thread of the fixing part 13 of the inner cylinder shaft 1, or a nut is sleeved outside the inner cylinder shaft 1 and meshed with the external thread of the fixing part 13 of the inner cylinder shaft 1, so that the rotor and the inner cylinder shaft 1 are fixed in the radial direction of the inner cylinder shaft 1.
In the embodiment of the present invention, as shown in fig. 2, the dynamic seal seat 2 is provided with a fastener 8 for clamping the dynamic seal rib 7 to the transition wall 214.
In the embodiment of the invention, the dynamic seal seat 2 is provided with the fastener 8, the fastener 8 can clamp the dynamic seal rib 7 on the transition wall 214, and the sealing performance of the dynamic seal rib 7 is improved, so that the axial gap between the dynamic seal seat 2 and the dynamic seal ring 3 is further reduced, and the sealing performance of the dynamic seal ring 3 is improved;
the fastener 8 is arranged on the outer side of the dynamic seal seat 2 and is on the same side as the bearing 6, the fastener 8 is matched with the bearing 6 to clamp the dynamic seal ring 3 on the transition wall 214, the fastener 8 and the bearing 6 are combined to be capable of closing the open end of the dynamic seal seat 2 in the radial direction, the fastener 8 enables the radial size of the bearing 6 to be reduced, and the cost is saved; the bearing 6 is coaxially arranged with the inner cylinder shaft 1, the dynamic seal seat 2 and the dynamic seal ring 3,
specifically, in order to increase the sealing performance of the dynamic seal ring 3, the bearing 6 radially covers the open end of the dynamic seal seat 2, the fastener 8 is arranged on the bearing 6 of the dynamic seal seat 2, the fastener 8 comprises a bolt 81 and a nut, the bolt 81 axially penetrates through the bearing 6 and is tightly attached to one end face of the dynamic seal ring 3, the nut is in threaded connection with the bolt 81 and abuts against one end face of the bearing 6, the fastener 8 is matched with the bearing 6 to clamp the dynamic seal ring 3 on the transition wall 214, the dynamic seal rib 7 is elastically deformed, and the sealing performance of the dynamic seal rib 7 is improved.
As shown in fig. 2, in the embodiment of the present invention, the dynamic seal ring 3 includes a ring of seal lips 31 whose outer peripheral wall is in contact with the inner wall of the socket of the dynamic seal seat 2, the seal lips 31 radially protrude relative to the inner periphery of the dynamic seal ring 3, and the extending end of the seal lips 31 is in sealing contact with the outer wall of the inner peripheral insertion end.
In the embodiment of the present invention, the dynamic seal ring 3 is made of a material such as rubber that is elastically deformable, and the dynamic seal ring 3 is elastically deformed to seal the contact portion. In the embodiment of the present invention, the sealing lip 31 of the dynamic sealing ring 3 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 31 is larger than the inner diameter of the insertion opening of the dynamic sealing seat 2, so that the sealing lip 31 deforms after being pressed by the elasticity of the sealing lip and is further inserted and fixed on the dynamic sealing seat 2;
the inner periphery of the dynamic sealing ring 3 is provided with a plurality of sealing lips 31 so as to form a plurality of sealing structures between the dynamic sealing ring 3 and the inner cylinder shaft 1, thereby improving the sealing property of the dynamic sealing seat 2 and reducing the probability of water flow in the cavity to leak.
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 (10)
1. The utility model provides a water inlet structure, includes that inside cavity forms the interior bobbin shaft of runner of intaking and the dynamic seal seat of inside cavity formation cavity, and the end of intaking of interior bobbin shaft inserts in the cavity, and the periphery of interior bobbin shaft is equipped with round dynamic seal circle, its characterized in that, installs the support that supports to the dynamic seal circle in the cavity between the periphery of dynamic seal circle and the dynamic seal seat.
2. The water inlet structure of claim 1, wherein the bracket is of an annular structure, the dynamic seal seat is of a cylindrical structure, the bracket is sleeved on the outer periphery of the dynamic seal ring, the inner periphery of the bracket is attached to the outer periphery of the dynamic seal ring, and the outer periphery of the bracket is attached to the inner periphery of the dynamic seal seat.
3. The water inlet structure of claim 2, wherein the axial section of the bracket is arch-shaped, the inner circumference of the bracket extends from one end of the outer circumference of the dynamic seal ring to the other end of the outer circumference of the dynamic seal ring along the axial direction, and the axial middle part of the outer circumference of the bracket is attached to the axial middle part of the inner circumference of the dynamic seal seat.
4. The water inlet structure of claim 3, wherein the middle part of the dynamic seal seat in the axial direction of the inner periphery is provided with a positioning groove matched with the shape of the middle part of the bracket in the axial direction of the outer periphery, and the middle part of the bracket in the axial direction of the outer periphery is embedded into the positioning groove.
5. A water inlet structure as claimed in any one of claims 1 to 4, wherein a sealing member is mounted in the chamber between the periphery of the bracket and the dynamic sealing seat;
preferably, the seal is provided between the outer periphery of the holder and the inner periphery of the positioning groove.
6. The water inlet structure of claim 5, wherein the sealing element is an auxiliary dynamic sealing ring, the auxiliary dynamic sealing ring is sleeved in the axial middle part of the periphery of the support, and the periphery of the auxiliary dynamic sealing ring is attached to the inner wall of the positioning groove;
preferably, the periphery of the auxiliary dynamic sealing ring extends from one end of the positioning groove to the other end of the positioning groove along the axial direction;
further preferably, the length of the outer circumference of the auxiliary dynamic seal ring extending in the axial direction is equal to the length of the inner circumference of the auxiliary dynamic seal ring extending in the axial direction.
7. The water inlet structure of any one of claims 1 to 6, wherein the chamber of the dynamic seal seat is divided into a first chamber and a second chamber along the direction of inserting the inner cylinder shaft, the radial dimension of the first chamber is larger than that of the second chamber, a transition wall is arranged between the first chamber and the second chamber, at least one circle of dynamic seal rib protruding axially is arranged on one end face of the dynamic seal ring, and one end face of the dynamic seal rib is attached to the transition wall.
8. The water inlet structure of claim 7, wherein the dynamic seal seat is provided with a bearing for limiting and supporting the water inlet end of the inner cylinder shaft;
preferably, the bearing and the dynamic sealing ring are sequentially arranged along the direction of inserting the inner cylinder shaft into the dynamic sealing seat cavity, and the bearing is positioned on the outer side of the dynamic sealing seat cavity.
9. The water intake structure of claim 8, wherein the dynamic seal seat is provided with a fastener for clamping the dynamic seal rib on the transition wall;
preferably, the fastener includes bolt and nut, and the bolt passes through the bearing along the axial and presss from both sides tight laminating with an end face of moving seal circle, and the nut and bolt spiro union just are in butt joint with an end face of bearing.
10. A washing machine, characterized in that, the water inlet structure of any one of the above claims 1-9 is installed, the inner cylinder shaft is coaxially installed at the bottom of the inner cylinder, the water outlet end of the inner cylinder shaft is fixedly connected with the inner cylinder, the water outlet end of the water inlet flow passage inside the inner cylinder shaft is communicated with the inside of the inner cylinder, and the chamber of the dynamic sealing seat is communicated with the water inlet pipe of the washing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134110.3A CN115874416A (en) | 2021-09-27 | 2021-09-27 | Water inlet structure and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134110.3A CN115874416A (en) | 2021-09-27 | 2021-09-27 | Water inlet structure and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115874416A true CN115874416A (en) | 2023-03-31 |
Family
ID=85762817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111134110.3A Pending CN115874416A (en) | 2021-09-27 | 2021-09-27 | Water inlet structure and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115874416A (en) |
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2021
- 2021-09-27 CN CN202111134110.3A patent/CN115874416A/en active Pending
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