WO2018082564A1 - 一种滚筒注水口的防溢装置及滚筒洗衣机 - Google Patents

一种滚筒注水口的防溢装置及滚筒洗衣机 Download PDF

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Publication number
WO2018082564A1
WO2018082564A1 PCT/CN2017/108933 CN2017108933W WO2018082564A1 WO 2018082564 A1 WO2018082564 A1 WO 2018082564A1 CN 2017108933 W CN2017108933 W CN 2017108933W WO 2018082564 A1 WO2018082564 A1 WO 2018082564A1
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Prior art keywords
water injection
injection port
baffle
drum
overflow
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PCT/CN2017/108933
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English (en)
French (fr)
Inventor
黄本财
梁启队
李敬德
Original Assignee
青岛海尔洗衣机有限公司
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Application filed by 青岛海尔洗衣机有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to US16/345,961 priority Critical patent/US11041268B2/en
Priority to EP17866421.5A priority patent/EP3536846A4/en
Publication of WO2018082564A1 publication Critical patent/WO2018082564A1/zh

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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
    • D06F39/081—Safety arrangements for preventing water damage
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • 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

Definitions

  • the invention relates to an anti-overflow device for a drum water injection port and a drum washing machine, in particular to an anti-overflow device and a roller for preventing a water injection of water and foam in a washing cylinder through a water injection port. washing machine.
  • the water in the cylinder will stir with the rotation of the cylinder, or the high-speed water will flow from the inner cylinder to the inner wall of the outer cylinder, and flow along the outer cylinder wall, plus the cylinder Vibration will overflow from the water inlet, and if there is water inflow, water seepage will occur.
  • the water overflows from the water storage tank, which brings pollution to the environment and brings great inconvenience to the user.
  • the Chinese Patent Application No. 201520796673.2 discloses a water inlet pipe assembly and a washing machine of a washing machine, wherein the water inlet pipe assembly of the washing machine comprises an inlet pipe and a valve flap disposed in the inlet pipe; the inlet pipe comprises a pipe body, and the inlet pipe a water joint and a water outlet joint, wherein the water inlet joint and the water outlet joint are respectively disposed at two ends of the pipe body, the valve flap is disposed adjacent to the water outlet joint; the remaining portion of the edge of the valve flap is opposite to the pipe body
  • the inner wall surface is matched with the gap.
  • This technical structure requires the addition of a flap in the original inlet assembly. The increase of the structure reduces the reliability of the whole machine operation, and may cause disadvantages such as poor components, incomplete assembly, aging failure during use, and also increase production assembly costs.
  • Chinese Patent Application No. 201110320633.7 discloses an anti-foam backwash drum washing machine.
  • the washing machine comprises a water inlet device, a drum and a water inlet connecting pipe, wherein the water inlet device is connected to the drum through the water inlet connecting pipe, and the water inlet connecting pipe is provided with a check valve for preventing backflow.
  • a check valve is installed at the water inlet connecting pipe near the drum,
  • the check valve for preventing backflow includes a sealing piece rotatably mounted on a pipe wall of the water inlet connecting pipe, and on the opposite side thereof, the water inlet connecting pipe is mounted with a baffle, and the sealing piece overlaps the Baffle.
  • This technical structure requires the addition of a sealing sheet and a baffle in the original inlet connection pipe.
  • the increase of the structure reduces the reliability of the whole machine operation, and may cause disadvantages such as poor components, incomplete assembly, and aging failure during use.
  • the increase in components increases the cost and assembly difficulty.
  • the vibration frequency of the one-way sealing sheet is also lowered, and the probability of water and foam overflow is also increased.
  • the present invention has been made in view of the above.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide an anti-overflow device and a drum washing machine for preventing the water and foam in the washing tub from overflowing through the water injection port by using the fluid mechanics principle.
  • an anti-overflow device for a drum water injection port includes a baffle plate, and the baffle plate is extended along the outer cylinder to the inner cylinder.
  • the blocked water flow returns to the water injection port with high speed operation of the inner cylinder.
  • a shunt can be generated to bypass the water injection port and flow in the water injection port area to prevent backflow.
  • the ratio L/H of the length L of the baffle extending into the outer cylinder to the distance H between the inner and outer cylinders of the water injection port is greater than 0 and less than 1, preferably between 0.3 and 0.85.
  • the shape of the baffle may be a straight plate, a curved plate or a prismatic plate.
  • the curved plate or the prismatic plate is compared with the straight plate, the shunting action is smoother when the fluid flows, and the anti-overflow effect is better.
  • the shape of the baffle is curved or prismatic.
  • the shape of the baffle is an arc matching the water injection opening.
  • the baffle and the water injection end of the water injection hose are integrally formed.
  • the baffle is an arc that matches the water injection port from the inner wall of the water injection end to the outside of the pipe.
  • the plate more preferably, the inner surface of the baffle smoothly transitions with the inner surface of the water injection end.
  • a pipe clamp is fixed between the water injection end of the water injection hose and the outer cylinder.
  • the baffle and the water injection end of the water injection hose are in a separate structure.
  • the baffle is provided with an integrally formed connecting pipe, and is fixed by a connecting pipe and a water injection end. More preferably, the outer cylinder is sandwiched between the baffle and the water injection end.
  • the baffle is an arc-shaped plate extending from the inner wall of the connecting pipe to the outside of the pipe and matched with the connecting pipe, and the inner surface of the baffle smoothly transitions with the inner surface of the connecting pipe.
  • the overflow prevention device further includes a retaining rib disposed on the inner side of the water injection opening, adjacent to the outer cylinder, opposite to the baffle.
  • the retaining rib is disposed at an angle to the cross section of the water injection port, and is inclined toward the outer cylinder direction.
  • an angle between the retaining rib and the water injection direction of the water injection port is between 30° and 90°.
  • the ratio h/d of the vertical chord height h of the retaining rib to the water injection port and the diameter d of the water injection port is greater than 0 and less than 1, preferably between 0.25 and 0.75.
  • the invention also provides a drum washing machine, comprising an anti-overflow device for a drum water injection port, the anti-overflow device comprising a baffle plate, the baffle plate extending along the outer tube toward the inner tube and being installed at the water injection port to block the water flow Return to the water injection port with high speed operation of the inner cylinder.
  • the water injection port overflow prevention device of the drum washing machine of the present invention the ratio L/H of the length L of the baffle extending into the outer cylinder and the distance H between the inner and outer cylinders of the water injection port is greater than 0 and less than 1, preferably 0.3 Between 0.85.
  • the baffle may be in the shape of a straight plate, a curved plate or a prismatic plate.
  • the curved plate or the prismatic plate has a smoother shunting action when the fluid flows, and the anti-overflow effect is better.
  • the shape of the baffle is curved or prismatic.
  • the shape of the baffle is an arc matching the water injection port.
  • the baffle is integrally formed with the water injection end of the water injection hose.
  • the baffle is a curved plate extending from the inner wall of the water injection end end to the outside of the pipe and matching with the water injection port.
  • the inner surface of the baffle and the inner surface of the water injection end smoothly transition.
  • a pipe clamp is fixed between the water injection end of the water injection hose and the outer cylinder.
  • the baffle and the water injection end of the water injection hose are in a separate structure.
  • the baffle is provided with an integrally formed connecting pipe, and is fixed by a connecting pipe and a water injection end.
  • the outer cylinder is sandwiched between the baffle and the water injection end.
  • the baffle is an arc-shaped plate extending from the inner wall of the connecting pipe to the outside of the pipe and matched with the connecting pipe, and the inner surface of the baffle smoothly transitions with the inner surface of the connecting pipe.
  • the overflow prevention device further includes a retaining rib disposed inside the water injection opening, adjacent to the outer cylinder, opposite to the baffle.
  • the angle between the retaining rib and the water injection direction of the water injection port is between 30° and 90°.
  • the ratio h/d of the vertical chord height h of the retaining rib to the water injection port and the diameter d of the water injection port is greater than 0 and less than 1, preferably between 0.25 and 0.75.
  • the present invention has the following advantageous effects compared with the prior art.
  • the anti-overflow device of the drum water injection port has a simple structure and high reliability
  • Figure 1 is a schematic view showing the position of the overflow preventing device of the drum water inlet of the present invention
  • Figure 2 is a schematic view of the overflow prevention device of the drum water injection port of the present invention.
  • Figure 3 is a rear elevational view of the overflow prevention device of the drum water inlet of the present invention.
  • Figure 4 is a cross-sectional view of the overflow prevention device A-A of the drum water injection port of the present invention
  • Figure 5 is a schematic exploded view of the overflow prevention device of the drum water injection port of the present invention.
  • Fig. 6 is a schematic view showing the principle of overflow prevention of the overflow prevention device of the present invention.
  • baffle 1, retaining ribs; 3, water injection end; 4, water injection hose; 5, outer cylinder; 6, inner cylinder; 7, connecting tube.
  • an anti-overflow device for a drum water injection port includes a baffle 1, and the baffle 1 extends along the outer cylinder 5 toward the inner cylinder 6 at a water injection port.
  • the blocked water flow returns to the water injection port with the high speed operation of the inner cylinder 6.
  • a shunt can be generated to bypass the water injection port and flow in the region of the water injection port to prevent backflow.
  • the ratio L/H of the length L of the baffle 1 extending into the outer cylinder to the distance H between the inner and outer cylinders at the water injection port is greater than 0 and less than 1, preferably between 0.3 and 0.85.
  • the shape of the baffle 1 may be a straight plate, a curved plate or a prismatic plate. When the curved plate or the prismatic plate is compared with the straight plate, the shunting action is smoother when the fluid flows, and the overflow prevention effect is also better.
  • the shape of the baffle 1 is curved or prismatic. Preferably, the shape of the baffle is an arc matching the water injection port.
  • the baffle 1 and the water injection end 3 of the water injection hose 4 are integrally formed.
  • the baffle 1 is matched from the inner wall of the water injection end 3 to the outside of the pipe and matched with the water injection port. a curved plate, more preferably, the inner surface of the baffle 1 and the inner surface of the water injection end 3 smoothly transition, and the water injection end of the water injection hose and the outer cylinder are fixed by a pipe clamp;
  • the baffle 1 and the water injection end 3 of the water injection hose 4 may also be of a separate structure.
  • the baffle 1 is provided with an integrally formed connecting pipe 7 through the connecting pipe 7 and the water injection end.
  • the head 3 is screwed in, and more preferably, the outer tube 5 is clamped.
  • the baffle 1 is a curved plate that protrudes from the inner wall of the connecting pipe 7 to the outside of the pipe, and the inner surface of the baffle 1 smoothly transitions with the inner surface of the connecting pipe 7.
  • the maximum straight line width W of the baffle 1 is greater than or equal to the water injection port diameter d.
  • the overflow prevention device further includes a retaining rib 2 disposed inside the water injection opening, adjacent to the outer cylinder 5, opposite to the baffle 1.
  • the retaining rib 2 is disposed at an angle to the cross section of the water injection port, and is inclined toward the outer cylinder 5.
  • the angle between the retaining rib 2 and the water injection direction of the water inlet is between 30° and 90°.
  • the ratio h/d of the vertical chord height h of the retaining rib 2 to the water injection port and the diameter d of the water injection port is greater than 0 and less than 1, preferably between 0.25 and 0.75.
  • the invention also provides a drum washing machine comprising the above-mentioned anti-overflow device for the drum water inlet.
  • the baffle 1 of the overflow prevention device of the drum water injection port and the water injection end 3 of the water injection hose 4 are integrally formed, and need not be assembled and used. Simple, reliable and economical.
  • the baffle 1 is a curved plate that protrudes from the inner wall of the water injection end 3 to the outside of the pipe and is matched with the water injection port.
  • the inner surface of the baffle 1 and the inner surface of the water injection end 3 are smooth. transition. It can also be a curved plate or a chamfered prism plate that does not match the water injection port.
  • the curved plate or the angled prism plate can also serve as a flow blocking effect even when the baffle boundary exceeds the diameter of the water injection port.
  • the flow blocking effect is better, but such a baffle is not easily formed integrally with the water injection end 3 of the water injection hose 4, and the assembly with the outer cylinder 5 is also inconvenient, and thus, the curved shape matching the water injection port is preferable.
  • the plate, and generally the outer diameter of the baffle 1 is less than or equal to the nominal diameter of the thread at the water injection port.
  • the overflow prevention device includes a baffle 1 , and the baffle 1 extends along the outer cylinder 5 toward the inner cylinder 6 at the water injection port, and the water flow is blocked from flowing back to the water injection port with the high speed operation of the inner cylinder 6 .
  • the ratio L/H of the length L of the baffle 1 extending into the outer cylinder to the distance H between the inner and outer cylinders at the water injection port is greater than 0 and less than 1, preferably between 0.3 and 0.85.
  • the maximum straight line width W of the baffle 1 is greater than or equal to the water injection port diameter d.
  • the shape of the baffle 1 is a half arc shape matching the water injection end, and when the fluid flow in the washing tub encounters the baffle 1, as shown in FIG.
  • the fluid will be shunted after passing through the baffle 1, and a stable region with reduced flow is formed on the back surface of the baffle 1, so that the fluid flow in the water injection port region is reduced. . Thereby preventing the occurrence of drowning or foam overflow.
  • the retaining rib 2 is disposed inside the water injection opening, adjacent to the outer cylinder, opposite to the baffle 1.
  • the retaining rib 2 is disposed at an angle to the cross section of the water injection port, and is inclined toward the outer cylinder 5.
  • the angle between the retaining rib 2 and the water injection direction of the water inlet is between 30° and 90°.
  • the vertical chord height h of the retaining rib 2 to the water injection port and the diameter of the water injection port d The ratio h/d is greater than 0 and less than 1, preferably between 0.25 and 0.75.
  • the baffle 2 cooperates with the baffle 1 to effectively block the overflow of the water flow and slow down the water flow to prevent drowning or foam overflow.
  • the overflow prevention device of the drum water injection port and the water injection end 3 of the water injection hose 4 are in a separate structure, and the two are connected by screws.
  • the baffle is provided with an integrally formed connecting pipe 7 which is screwed into the water injection end 3 via a connecting pipe 7, and more preferably, the outer cylinder 5 is interposed between the baffle 1 and the water injection end 3.
  • the baffle 1 is an arc-shaped plate extending from the inner wall of the connecting pipe 7 to the outside of the pipe and matching with the connecting pipe 7, and the inner surface of the baffle 1 and the inner surface of the connecting pipe 7 are smoothly transitioned.
  • the connecting tube 7 is provided in the following two cases: one end of the connecting tube 7 is screwed with the water injection end 3 of the water injection hose 4, and the other end of the connecting tube 7 is screwed with the outer tube water injection hole, preferably the blocking flow.
  • the outer diameter of the plate 1 is less than or equal to the nominal diameter of the external thread of the connecting pipe, because in this case, the nominal diameter larger than the external thread of the connecting pipe cannot be installed; in addition, one end of the connecting pipe 7 passes through the water injection hole of the outer cylinder 5 and is softly filled with water.
  • the water injection end of the tube 4 is screwed in place, in which case the outer diameter of the baffle 1 is not less than or equal to the nominal diameter of the external thread of the connecting tube, preferably slightly larger than the diameter of the baffle.
  • the arrangement of the connecting pipe 7 is preferably the latter one described above.
  • the overflow prevention device includes a baffle 1 , and the baffle 1 extends along the outer cylinder 5 toward the inner cylinder 6 at the water injection port, and the water flow is blocked from flowing back to the water injection port with the high speed operation of the inner cylinder 6 .
  • the ratio L/H of the length L of the baffle 1 extending into the outer cylinder to the distance H between the inner and outer cylinders at the water injection port is greater than 0 and less than 1, preferably between 0.3 and 0.85.
  • the maximum straight line width W of the baffle 1 is greater than or equal to the water injection port diameter d.
  • the shape of the baffle 1 is a half arc shape matching the water injection port, and when the fluid flow in the washing tub encounters the baffle 1, as shown in FIG. 6, according to The principle of the fluid mechanics Karman vortex phenomenon, the fluid will be shunted after passing through the baffle 1, and a stable region of reduced flow is formed on the back of the baffle 1, so that the fluid flow in the water injection port region is reduced. Thereby preventing the occurrence of drowning or foam overflow.
  • the retaining rib 2 is disposed inside the water injection opening, adjacent to the outer cylinder, opposite to the baffle 1.
  • the retaining rib 2 is disposed at an angle to the cross section of the water injection port, and is inclined toward the outer cylinder 5.
  • the angle between the retaining rib 2 and the water injection direction of the water inlet is between 30° and 90°.
  • the ratio h/d of the vertical chord height h of the retaining rib 2 to the water injection port and the diameter d of the water injection port is greater than 0 and less than 1, preferably between 0.25 and 0.75.
  • the baffle 2 cooperates with the baffle 1 to effectively block the overflow of the water flow and slow down the water flow to prevent drowning or foam overflow.
  • an overflow prevention device for a drum water injection port includes a baffle 1, and the baffle 1 extends along the outer cylinder 5 toward the inner cylinder 6 Installed at the water injection port, the blocked water flow returns to the water injection port with the high speed operation of the inner cylinder 6.
  • a shunt can be generated to bypass the water injection port and flow in the region of the water injection port to prevent backflow.
  • the ratio L/H of the length L of the baffle 1 extending into the outer cylinder to the distance H between the inner and outer cylinders at the water injection port is greater than 0 and less than 1, preferably between 0.3 and 0.85.
  • the maximum straight line width W of the baffle 1 is greater than or equal to the water injection port diameter d.
  • the shape of the baffle 1 may be a straight plate or a curved plate or a prismatic plate. When the curved plate or the prismatic plate is compared with the straight plate, the flow is relatively smooth when the fluid flows, and the overflow prevention effect is also better.
  • the baffle 1 has an arc shape or a prism shape, and is preferably an arc matching the water injection port.
  • the baffle 1 and the water injection end 3 of the water injection hose 4 are integrally formed.
  • the baffle 1 is matched from the inner wall of the water injection end 3 to the outside of the pipe and matched with the water injection port. a curved plate, more preferably, the inner surface of the baffle 1 and the inner surface of the water injection end 3 smoothly transition, and the water injection end of the water injection hose and the outer cylinder are fixed by a pipe clamp;
  • the baffle 1 and the water injection end 3 of the water injection hose 4 may also be of a separate structure.
  • the baffle 1 is provided with an integrally formed connecting pipe 7 through the connecting pipe 7 and the water injection end.
  • the head 3 is screwed in place, and more preferably, the outer cylinder 5 is interposed between the baffle 1 and the water injection end 3.
  • the baffle 1 is an arc-shaped plate extending from the inner wall of the connecting pipe 7 to the outside of the pipe and matching with the connecting pipe 7, and the inner surface of the baffle 1 and the inner surface of the connecting pipe 7 are smoothly transitioned. .
  • the overflow prevention device further includes a retaining rib 2 disposed inside the water injection opening, adjacent to the outer cylinder 5 opposite to the baffle 1.
  • the retaining rib 2 is disposed at an angle to the cross section of the water injection port, and is inclined toward the outer cylinder 5.
  • the angle between the retaining rib 2 and the water injection direction of the water inlet is between 30° and 90°.
  • the ratio h/d of the vertical chord height h of the retaining rib 2 to the water injection port and the diameter d of the water injection port is greater than 0 and less than 1, preferably between 0.25 and 0.75.
  • the corrugated portion of the water injection hose 4 also has a certain anti-overflow function, and the anti-overflow effect is related to the size and the number of wrinkles of the water injection hose 4.
  • the wrinkles of the corrugated portion of the water injection hose 4 serve as a buffer to prevent the cylinder from pulling the water storage tank while violently vibrating, so that the more wrinkles of the corrugated portion of the water injection hose 4 are wrinkled, the more the cushioning stroke is. Large, otherwise, the more the buffer stroke Small, but subject to the limitations and influences of space and molding technology, the wrinkle change of the corrugated portion of the water injection hose 4 is not very obvious, and the corresponding buffering effect is not very obvious.

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Abstract

一种滚筒注水口的防溢装置及滚筒洗衣机，其中，所述防溢装置包括挡流板（1），所述挡流板（1）沿外筒（5）伸向内筒（6）安装在注水口处，阻挡水流随内筒（6）高速运转回流至注水口内。所述防溢装置还包括挡筋（2），所述挡筋（2）设在所述注水口内侧，靠近外筒（5）。所述滚筒洗衣机包括所述滚筒注水口的防溢装置。该滚筒注水口的防溢装置结构简单，可靠性高；部件简单，经济性好；采用流体力学原理，实现筒内液体流动的变化，防溢出效果好。

Description

一种滚筒注水口的防溢装置及滚筒洗衣机 技术领域
本发明涉及一种滚筒注水口的防溢装置及滚筒洗衣机，具体地说，涉及一种利用流体力学原理防止洗涤筒内的水和泡沫通过注水口回溢的滚筒注水口的防溢装置及滚筒洗衣机。
背景技术
现有的滚筒洗衣机在洗涤过程中，若使用了大量的洗涤剂或衣物不太脏的情况下会产生过量泡沫，泡沫填充在筒内会增大筒内的压力，在后续洗涤过程中由于洗涤筒的转动，泡沫越来越多，洗涤筒内空间不足会导致流体(主要是泡沫和含有洗涤剂及污物的水)溢出，滚筒洗衣机多会从贮水槽溢出，给环境带来了污染，给用户也带来了极大的不便。
同时，滚筒洗衣机在洗涤或脱水过程中，筒内的水会随着筒的转动而产生激荡，或者高转速水从内筒甩到外筒内壁上，沿着外筒壁流动，加上筒的振动，会从注水口外溢，此时若存在进水，则会出现呛水现象。水从贮水槽溢出，给环境带来了污染，同时给用户带来了极大的不便。
目前遇到这种情况主要有两种解决方案，分别为电脑程序上的调整以及结构上改变增加防溢结构。
电脑程序上的调整通过改变转速，调整进水排水时间以及调整转停比来实现减少泡沫或呛水的发生，但是程序的改变受到能效和耗水的性能限制，并不能根治泡沫溢出或呛水的发生。因此往往需要从结构上的改变来实现目的。
申请号为201520796673.2的中国专利公开了一种洗衣机的进水管组件及洗衣机，其中，洗衣机的进水管组件包括进水管及设于所述进水管内的阀瓣；所述进水管包括管体、进水接头及出水接头，且所述进水接头与出水接头分别设于所述管体两端、所述阀瓣邻近所述出水接头设置；所述阀瓣的边缘其余部分与所述管体的内壁面间隙配合。该技术结构需要在原有进水管组件中增加阀瓣。结构的增加减少了整机运行的可靠性，可能会产生部件不良，装配不到位，使用过程中的老化失效等缺点，同时还增加了生产装配成本。
申请号为201110320633.7的中国专利公开了一种防泡沫回溢滚筒洗衣机。该洗衣机包括进水装置、滚筒和进水连接管，所述进水装置通过所述进水连接管与所述滚筒相连接，所述进水连接管处装有防回流的单向阀，所述单向阀安装在所述进水连接管靠近所述滚筒处，所 述防回流的单向阀包括密封片，所述密封片转动安装于进水连接管的管壁，在其对侧，所述进水连接管安装有挡板，所述密封片搭接所述挡板。该技术结构需要在原有进水连接管中增加密封片和挡板。结构的增加减少了整机运行的可靠性，可能会产生部件不良，装配不到位，使用过程中的老化失效等缺点。此外，部件的增加会增加成本和装配的难度，况且在筒内转动低频的振动情况下，单向密封片的振动频率也会降低，水和泡沫溢出的几率也会增加。
有鉴于此特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种利用流体力学原理防止洗涤筒内的水和泡沫通过注水口回溢的一种滚筒注水口的防溢装置及滚筒洗衣机。
为解决上述技术问题，本发明采用技术方案的基本构思是：一种滚筒注水口的防溢装置，所述防溢装置包括挡流板，所述挡流板沿外筒伸向内筒安装在注水口处，阻挡水流随内筒高速运转回流至注水口内。根据流体力学原理，流体通过所述挡流板时，会产生分流绕过所述注水口并在所述注水口区域流动变缓，防止回溢。
进一步的，所述挡流板伸进外筒内的长度L与所述注水口处内外筒间距H的比值L/H大于0小于1，优选的，在0.3～0.85之间。
进一步的，所述挡流板的形状可以为直板、弧形板或棱形板，弧形板或棱形板与直板相比，流体流过时分流动作较平缓，防溢的效果也更好，为此，所述挡流板的形状为弧形或棱形，优选的，挡流板的形状为与注水口匹配的弧形。
进一步的，所述挡流板与所述注水软管的注水端头为一体成型结构，优选的，所述挡流板为从注水端头内壁向管外伸出的与注水口匹配的弧形板，更优选的，所述挡流板内表面与所述注水端头的内表面平滑过渡。所述注水软管的注水端头与所述外筒之间为管夹固定。
进一步的，所述挡流板与所述注水软管的注水端头为分体结构，优选的，所述挡流板设置有一体成型的连接管，通过连接管与注水端头插接螺纹固定，更优选的，外筒夹设在挡流板与注水端头之间。所述挡流板为从所述连接管的内壁向管外伸出的与连接管匹配的弧形板，所述挡流板内表面与所述连接管的内表面平滑过渡。
进一步的，所述防溢装置还包括挡筋，所述挡筋设在所述注水口内侧，靠近外筒，与所述挡流板相对。
进一步的，所述挡筋与所述注水口横截面成角度设置，向外筒方向倾斜。
进一步的，所述挡筋与所述注水口注水方向之间的角度在30°～90°之间。
进一步的，所述挡筋到所述注水口的垂直弦高h与注水口直径d的比值h/d大于0小于1，优选的，在0.25～0.75之间。
本发明还提出一种滚筒洗衣机，包括一种滚筒注水口的防溢装置，所述防溢装置包括挡流板，所述挡流板沿外筒伸向内筒安装在注水口处，阻挡水流随内筒高速运转回流至注水口内。
本发明滚筒洗衣机的注水口防溢装置，所述挡流板伸进外筒内的长度L与所述注水口处内外筒间距H的比值L/H大于0小于1，优选的，在0.3～0.85之间。所述挡流板的形状可以为直板、弧形板或棱形板，弧形板或棱形板与直板相比，流体流过时分流动作较平缓，防溢的效果也更好，为此，所述挡流板的形状为弧形或棱形，优选的，挡流板的形状为与注水口匹配的弧形。所述挡流板与所述注水软管的注水端头为一体成型结构，优选的，所述挡流板为从注水端头内壁向管外伸出的与注水口匹配的弧形板，更优选的，所述挡流板内表面与所述注水端头的内表面平滑过渡。所述注水软管的注水端头与所述外筒之间为管夹固定。所述挡流板与所述注水软管的注水端头为分体结构，优选的，所述挡流板设置有一体成型的连接管，通过连接管与注水端头插接螺纹固定，更优选的，外筒夹设在挡流板与注水端头之间。所述挡流板为从所述连接管的内壁向管外伸出的与连接管匹配的弧形板，所述挡流板内表面与所述连接管的内表面平滑过渡。所述防溢装置还包括挡筋，所述挡筋设在所述注水口内侧，靠近外筒，与所述挡流板相对。所述挡筋与所述注水口注水方向之间的角度在30°～90°之间。所述挡筋到所述注水口的垂直弦高h与注水口直径d的比值h/d大于0小于1，优选的，在0.25～0.75之间。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果。
1、采用流体力学原理，实现筒内液体流动的变化，防溢出效果好；
2、所述滚筒注水口的防溢装置结构简单，可靠性高；
3、部件简单，经济性好。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是 一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1是本发明滚筒注水口的防溢装置位置示意图；
图2是本发明滚筒注水口的防溢装置示意图；
图3是本发明滚筒注水口的防溢装置后视图；
图4是本发明滚筒注水口的防溢装置A-A剖视图；
图5是本发明滚筒注水口的防溢装置分体示意图；
图6是本发明防溢装置的防溢原理示意图。
图中：1、挡流板；2、挡筋；3、注水端头；4、注水软管；5、外筒；6、内筒；7、连接管。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步的介绍。
如图1至图5所示，一种滚筒注水口的防溢装置，所述防溢装置包括挡流板1，所述挡流板1沿外筒5伸向内筒6安装在注水口处，阻挡水流随内筒6高速运转回流至注水口内。根据流体力学原理，流体通过所述挡流板1时，会产生分流绕过所述注水口并在所述注水口的区域流动变缓，防止回溢。
所述挡流板1伸进外筒内的长度L与所述注水口处内外筒间距H的比值L/H大于0小于1，优选的，在0.3～0.85之间。所述挡流板1的形状可以为直板、弧形板或棱形板，弧形板或棱形板与直板相比，流体流过时分流动作较平缓，防溢的效果也更好，为此，所述挡流板1的形状为弧形或棱形，优选的，挡流板的形状为与注水口匹配的弧形。
所述挡流板1与所述注水软管4的注水端头3为一体成型结构，优选的，所述挡流板1为从注水端头3内壁向管外伸出的与注水口匹配的弧形板，更优选的，所述挡流板1内表面与所述注水端头3的内表面平滑过渡，所述注水软管的注水端头与所述外筒之间为管夹固定；所述挡流板1与所述注水软管4的注水端头3也可以为分体结构，优选的，所述挡流板1设置有一体成型的连接管7，通过连接管7与注水端头3插接螺纹固定，更优选的，外筒5夹 设在挡流板1与注水端头3之间。所述挡流板1为从所述连接管7的内壁向管外伸出的与注水口匹配的弧形板，所述挡流板1内表面与所述连接管7的内表面平滑过渡。所述挡流板1的最大直线宽度W大于或等于所述注水口直径d。所述防溢装置还包括挡筋2，所述挡筋2设在所述注水口内侧，靠近外筒5，与所述挡流板1相对。所述挡筋2与所述注水口横截面成角度设置，向外筒5方向倾斜。所述挡筋2与所述注水口注水方向之间的角度在30°～90°之间。所述挡筋2到所述注水口的垂直弦高h与注水口直径d的比值h/d大于0小于1，优选的，在0.25～0.75之间。
本发明还提出一种滚筒洗衣机，包括以上所述的一种滚筒注水口的防溢装置。
实施例一
如图2-4所示，本实施例中，所述滚筒注水口的防溢装置的挡流板1与所述注水软管4的注水端头3为一体成型结构，无需装配后使用，部件简单、可靠性高且经济性好。
所述挡流板1为从注水端头3内壁向管外伸出的与注水口匹配的弧形板，优选的，所述挡流板1内表面与所述注水端头3的内表面平滑过渡。也可为不与注水口匹配的弧形板或者折角的棱形板，此种弧形板或者折角的棱形板也可起到挡流的效果，甚至当挡流板边界超出注水口直径时挡流效果更好，但此种挡流板不易与注水软管4的注水端头3一体成型，且与外筒5的装配组合亦很不方便，由此，优选与注水口匹配的弧形板，且一般所述挡流板1的外直径小于等于注水口处螺纹的公称直径。
如图1所示，所述防溢装置包括挡流板1，所述挡流板1沿外筒5伸向内筒6安装在注水口处，阻挡水流随内筒6高速运转回流至注水口内。所述挡流板1伸进外筒内的长度L与所述注水口处内外筒间距H的比值L/H大于0小于1，优选的，在0.3～0.85之间。所述挡流板1的最大直线宽度W大于或等于所述注水口直径d。
如图2所示，所述挡流板1的形状为与注水端头匹配的半个圆弧形，当洗涤筒内的流体流动遇到所述挡流板1时，如图6所示，根据流体力学卡门涡街现象的原理，流体在经过所述挡流板1后会产生分流，并在所述挡流板1的背面形成一个流动减少的稳定区域，使注水口区域的流体流动减少。从而防止呛水或泡沫外溢的发生。
如图4所示，所述挡筋2设在所述注水口内侧，靠近外筒，与所述挡流板1相对。所述挡筋2与所述注水口横截面成角度设置，向外筒5方向倾斜。所述挡筋2与所述注水口注水方向之间的角度在30°～90°之间。所述挡筋2到所述注水口的垂直弦高h与注水口直径d 的比值h/d大于0小于1，优选的，在0.25～0.75之间。所述的挡筋2配合所述的挡流板1有效的阻挡水流外溢同时会减缓水流速度，防止呛水或泡沫外溢。
实施例二
如图5所示，本实施例中，所述滚筒注水口的防溢装置与注水软管4的注水端头3为分体结构，两者之间通过螺纹连接。
所述挡流板设置有一体成型的连接管7，通过连接管7与注水端头3插接螺纹固定，更优选的，外筒5夹设在挡流板1与注水端头3之间。所述挡流板1为从所述连接管7的内壁向管外伸出的与连接管7匹配的弧形板，所述挡流板1内表面与所述连接管7的内表面平滑过渡。连接管7的设置有以下两种情况：连接管7一端与注水软管4的注水端头3插接螺纹固定，连接管7另一端与外筒注水孔插接螺纹固定，优选所述挡流板1的外直径小于等于连接管外螺纹的公称直径，因为此种情况下若大于连接管外螺纹的公称直径将无法安装；此外，连接管7一端穿过外筒5的注水孔与注水软管4的注水端头插接螺纹固定，此种情况对所述挡流板1的外直径没有小于等于连接管外螺纹公称直径的限制，优选稍大于直径的挡流板。连接管7的设置优选以上所述的后一种。
如图1所示，所述防溢装置包括挡流板1，所述挡流板1沿外筒5伸向内筒6安装在注水口处，阻挡水流随内筒6高速运转回流至注水口内。所述挡流板1伸进外筒内的长度L与所述注水口处内外筒间距H的比值L/H大于0小于1，优选的，在0.3～0.85之间。所述挡流板1的最大直线宽度W大于或等于所述注水口直径d。
如图2所示，所述挡流板1的形状为与注水口匹配的半个圆弧形，当洗涤筒内的流体流动遇到所述挡流板1时，如图6所示，根据流体力学卡门涡街现象的原理，流体在经过所述挡流板1后会产生分流，并在所述挡流板1的背面形成一个流动减少的稳定区域，使注水口区域的流体流动减少。从而防止呛水或泡沫外溢的发生。
如图4所示，所述挡筋2设在所述注水口内侧，靠近外筒，与所述挡流板1相对。所述挡筋2与所述注水口横截面成角度设置，向外筒5方向倾斜。所述挡筋2与所述注水口注水方向之间的角度在30°～90°之间。所述挡筋2到所述注水口的垂直弦高h与注水口直径d的比值h/d大于0小于1，优选的，在0.25～0.75之间。所述的挡筋2配合所述的挡流板1有效的阻挡水流外溢同时会减缓水流速度，防止呛水或泡沫外溢。
实施例三
如图1至图5所示，本实施例中，一种滚筒注水口的防溢装置，所述防溢装置包括挡流板1，所述挡流板1沿外筒5伸向内筒6安装在注水口处，阻挡水流随内筒6高速运转回流至注水口内。根据流体力学原理，流体通过所述挡流板1时，会产生分流绕过所述注水口并在所述注水口的区域流动变缓，防止回溢。
所述挡流板1伸进外筒内的长度L与所述注水口处内外筒间距H的比值L/H大于0小于1，优选的，在0.3～0.85之间。所述挡流板1的最大直线宽度W大于或等于所述注水口直径d。所述挡流板1的形状可以为直板或弧形板或棱形板，弧形板或棱形板与直板相比，流体流过时分流动作较平缓，防溢的效果也更好，为此，所述挡流板1的形状为弧形或棱形，优选的，为与注水口匹配的弧形。
所述挡流板1与所述注水软管4的注水端头3为一体成型结构，优选的，所述挡流板1为从注水端头3内壁向管外伸出的与注水口匹配的弧形板，更优选的，所述挡流板1内表面与所述注水端头3的内表面平滑过渡，所述注水软管的注水端头与所述外筒之间为管夹固定；所述挡流板1与所述注水软管4的注水端头3也可以为分体结构，优选的，所述挡流板1设置有一体成型的连接管7，通过连接管7与注水端头3插接螺纹固定，更优选的，外筒5夹设在挡流板1与注水端头3之间。所述挡流板1为从所述连接管7的内壁向管外伸出的与连接管7匹配的弧形板，所述挡流板1内表面与所述连接管7的内表面平滑过渡。
所述防溢装置还包括挡筋2，所述挡筋2设在所述注水口内侧，靠近外筒5与所述挡流板1相对。所述挡筋2与所述注水口横截面成角度设置，向外筒5方向倾斜。所述挡筋2与所述注水口注水方向之间的角度在30°～90°之间。所述挡筋2到所述注水口的垂直弦高h与注水口直径d的比值h/d大于0小于1，优选的，在0.25～0.75之间。如图3所示，本实施例中，所述注水软管4的波纹部分也具有一定的防溢作用，防溢效果与所述注水软管4的尺寸和皱褶数量均有关系。
所述注水软管4的直径越小，所述注水软管4的波纹部分所起到的防溢效果越好，与此同时，所述注水软管4的直径越小，正常进水流量越小，进水时间越长，进而洗衣时间越长；反之，所述注水软管4的直径越大，所述注水软管4的波纹部分所起到的防溢效果越差，与此同时，所述注水软管4的直径越大，正常进水流量越大，进水时间越短，进而洗衣时间越短。受到各方面因素的影响，注水软管的直径可改变的范围有限，其起到的溢出效果也有限。
所述注水软管4波纹部分的皱褶起到缓冲的作用，防止筒体在剧烈震动的同时拉扯贮水槽，所以皱褶所述注水软管4的波纹部分的皱褶越多，缓冲行程越大，反之，则缓冲行程越 小，但受到空间和成型技术等的限制和影响，所述注水软管4波纹部分的皱褶变化并不十分明显，相应缓冲作用变化也不十分明显。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 一种滚筒注水口的防溢装置，其特征在于：所述防溢装置包括挡流板，所述挡流板沿外筒伸向内筒安装在注水口处，阻挡水流随内筒高速运转回流至注水口内。
  2. 根据权利要求1所述的一种滚筒注水口的防溢装置，其特征在于：所述挡流板伸进外筒内的长度L与所述注水口处内外筒间距H的比值L/H大于0小于1，优选的，在0.3～0.85之间。
  3. 根据权利要求1所述的一种滚筒注水口的防溢装置，其特征在于：所述挡流板的形状为弧形或棱形，优选的，挡流板的形状为与注水口匹配的弧形。
  4. 根据权利要求1所述的一种滚筒注水口的防溢装置，其特征在于：所述挡流板与所述注水软管的注水端头为一体成型结构，优选的，所述挡流板为从注水端头内壁向管外伸出的与注水口匹配的弧形板，更优选的，所述挡流板内表面与所述注水端头的内表面平滑过渡。
  5. 根据权利要求1所述的一种滚筒注水口的防溢装置，其特征在于：所述挡流板与所述注水软管的注水端头为分体结构，优选的，所述挡流板设置有一体成型的连接管，通过连接管与注水端头插接螺纹固定，更优选的，外筒夹设在挡流板与注水端头之间。
  6. 根据权利要求1-5任一项所述的滚筒注水口的防溢装置，其特征在于：所述防溢装置还包括挡筋，所述挡筋设在所述注水口内侧，靠近外筒。
  7. 根据权利要求6所述的一种滚筒注水口的防溢装置，其特征在于：所述挡筋与所述注水口横截面成角度设置，向外筒方向倾斜。
  8. 根据权利要求7所述的一种滚筒注水口的防溢装置，其特征在于：所述挡筋与所述注水口注水方向之间的角度在30°～90°之间。
  9. 根据权利要求6所述的一种滚筒注水口的防溢装置，其特征在于：所述挡筋到注水口的垂直弦高h与注水口直径d的比值h/d大于0小于1，优选的，在0.25～0.75之间。
  10. 一种滚筒洗衣机，其特征在于：包括如权利要求1-9任一项所述的防溢装置。
PCT/CN2017/108933 2016-11-01 2017-11-01 一种滚筒注水口的防溢装置及滚筒洗衣机 WO2018082564A1 (zh)

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