WO2015100702A1 - 一种开放式水泵及其应用 - Google Patents
一种开放式水泵及其应用 Download PDFInfo
- Publication number
- WO2015100702A1 WO2015100702A1 PCT/CN2014/001159 CN2014001159W WO2015100702A1 WO 2015100702 A1 WO2015100702 A1 WO 2015100702A1 CN 2014001159 W CN2014001159 W CN 2014001159W WO 2015100702 A1 WO2015100702 A1 WO 2015100702A1
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- WIPO (PCT)
- Prior art keywords
- water
- flow guiding
- water pump
- flow
- impeller
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0086—In-sink dishwashers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
Definitions
- the invention relates to a water pump, in particular an open water pump, and an application for a water pump.
- the water pump and the inlet pipe must be filled with water, and then the high-speed rotating impeller is used to obtain the energy of the liquid under the action of the inertial centrifugal force, thereby increasing the internal pressure.
- the impeller rotates rapidly, the blade causes the water to rotate quickly.
- the centrifugal force flies out of the impeller, the water in the pump is thrown, the central part of the impeller forms a vacuum area, and then the water of the water source enters the inlet pipe under the action of atmospheric pressure (or water pressure). Continuous circulation can be achieved by circulating.
- the pump has the advantages of simple structure, easy operation, easy adjustment of flow rate and suitable for transportation of various special materials, it is widely used in various fields, ranging from various industrial places to various household appliances such as washing machines and dishwashers. , air conditioning, etc.
- an open type water pump such as a dishwasher disclosed in European Patent Publication No. EP 0 807 396 A2, which comprises a washing chamber for accommodating dishes, supported in a washing chamber.
- the bottom spray arm pumps a pump that pressurizes the spray arm, the pump includes an impeller, and the inner surface of the spray arm defines a housing for the impeller, allowing the washing liquid to pass from the housing to the nozzle of the spray arm, the impeller
- the blade includes a blade that is bent forward at a lower edge, and the bottom of the blade has an axial flow blade portion that engages with a spline shaft of the drive motor, and the axial flow blade portion lifts the fluid after the motor is started under no load. So that the pump is working properly.
- the first technical problem to be solved by the present invention is to provide an open type water pump for the problems of the above prior art, which is convenient for the water pump to drown and has less noise when drowning.
- a second technical problem to be solved by the present invention is to provide a sink type washing machine to which the above-described open type water pump is applied.
- an open type water pump comprising an upper casing, a lower casing and an impeller, the impeller including a shaft at the center and a circumference on a circumferential surface of the shaft Multiple evenly distributed An axially extending blade, the blade being axially divided into an upper portion and a lower portion that are connected to each other, wherein the upper housing is formed with an upper receiving cavity for receiving an upper portion of the blade, and the lower housing is formed with The lower receiving cavity of the lower section of the blade is characterized in that: under the lower casing, a flow guiding ring is disposed, and a water flow passage between the guiding ring and the lower casing gradually decreases from the periphery toward the center.
- the gradually decreasing water flow passage may be formed in such a manner that, in one embodiment of the invention, the upper surface of the flow guide ring is a slope which is gradually inclined upward from the periphery toward the center. In another embodiment of the invention, the upper surface of the flow guiding ring is an arcuate surface that is gradually inclined upward from the periphery toward the center, and the curved surface is convex or concave.
- the above shapes can guide the water flow entering at the water inlet to make it enter the lower receiving cavity in an orderly manner, thereby greatly reducing the noise when the impeller rotates in the water, and the water flow channel due to the water inlet is The outward inward is gradually reduced, so that the water flow has an accelerating process before entering the lower receiving cavity, which helps to form a negative pressure and obtain a better hydrophobic effect.
- the lower surface of the lower casing is disposed at a position corresponding to the flow guiding ring with a corresponding annular flow guiding surface, and the flow guiding surface can cooperate with the flow guiding ring.
- the shaft of the impeller is connected to the output shaft of the motor through the diversion ring, and the motor rotates to drive the blade to rotate.
- a sink type washing machine comprising a tank body for forming a washing space, the tank body comprising a water tank body, wherein: the bottom of the water tank body is at least The central portion is formed with a draining region covered with a drain plate having a drain hole, the drain water region being provided with an open water pump as described above, the flow guiding ring being fixed at the bottom of the water tank body .
- the upper casing is a rotating spray arm covering the impeller
- the rotary spray arm includes a pair of upper and lower covers
- the middle of the lower cover forms the The cavity is accommodated thereon, whereby the rotary spray arm is used as a water outlet component of the open water pump, and the water flow flows out from the side of the upper accommodation cavity and enters the flow passage.
- a water outlet hole is defined in the upper cover body of the rotary spray arm, and a flow passage communicating with the upper receiving cavity is formed between the upper cover body and the lower cover body.
- the water outlet hole corresponds to the position of the flow channel, and the water pumped by the impeller flows out from the side surface of the upper accommodation cavity, and is sprayed from the water outlet hole through the flow channel.
- the lower casing is a baffle
- the center of the baffle forms the lower receiving cavity
- the guiding bracket is provided with a plurality of longitudinally extending mounting legs in a circumferential direction.
- the guide bracket is suspended at the bottom of the water tank body, so that the water inlet of the water pump is located below and on the side of the flow guide bracket, so that timely water supply can be performed.
- the top outer periphery of the flow guiding bracket has an upper stepped surface, and the upper casing rests on the upper step surface, and the upper casing only needs to be taken off the guiding bracket when cleaning the water pump. Take out the impeller.
- the invention has the advantages that a flow guiding ring is arranged at the water inlet of the open water pump, and the water flow entering at the water inlet is guided to make it enter the lower receiving cavity in an orderly manner. Therefore, the noise of the impeller rotating water is greatly reduced, and since the water flow passage of the water inlet is gradually reduced from the outside to the inside, the water flow has an accelerating process before entering the lower receiving cavity, which contributes to the formation.
- FIG. 1 is a schematic view of a sink type washing machine according to an embodiment of the present invention.
- Figure 2 is a partial cross-sectional view showing a sink type washing machine in accordance with an embodiment of the present invention
- FIG. 3 is a schematic exploded view of an open type water pump according to an embodiment of the present invention.
- 4-1 is a schematic structural diagram of a flow guiding ring according to an embodiment of the present invention.
- 4-2 is a schematic structural view of another embodiment of a guide ring in an open type water pump according to the present invention.
- FIG. 4-3 is a schematic structural view of still another embodiment of a flow guiding ring in an open type water pump according to the present invention.
- the sink type washing machine can be used for washing dishes, vegetables, fruits, etc., including a sink body 1, and a rotary connection.
- the water tank body 1 may be a common water tank for household use, and the water tank body 1 and the cover plate 2 form a washing space for accommodating the above-mentioned dishes, vegetables, fruits, and the like, and cleaning them.
- the bottom plate 11 of the water tank body 1 is recessed at least at a central portion, and above the concave portion of the bottom plate 11, is spaced apart from the drain plate 3 having the same shape as the concave portion, and the drain plate 3 is provided with a plurality of drain water for draining
- the space between the hole 31, the drain plate 3 and the recessed portion of the bottom plate 11 forms a drain area 32 which is flush with the other portions of the bottom plate 11.
- a motor 4 is mounted below the bottom plate 11, and the output shaft 41 of the motor 4 extends into the water tank body 1 and is located in the drain area 32 above the bottom plate 11.
- the water pump 5 includes an impeller 51 including a hollow shaft 511 at the center and a plurality of blades 512 disposed on the circumferential surface of the shaft 511.
- the blades 512 are on the circumference of the shaft 511.
- the upper portion is evenly distributed and extends in the axial direction, and the vane 512 is axially divided into an upper portion 5121 and a lower portion 5122 which are connected to each other.
- the lower end of the shaft 511 is connected to the output shaft 41 of the motor 4, whereby the impeller 51 can be driven when the motor 4 rotates. Turn.
- a guide bracket 52 is disposed outside the impeller 51.
- the guide bracket 52 is provided with a plurality of mounting legs 521 in the circumferential direction.
- the mounting legs 521 can be fixed to the bottom plate 11 or the motor 4 by screws or the like, and the mounting legs 521 are longitudinally extended to make the guiding bracket
- a gap is formed between the bottom surface of the bottom surface 52 and the bottom surface of the drain portion 32 to form a suspended state at the bottom of the water tank body 1 for the passage of water in the drain water region 32.
- the lower section 5122 of the vane 512 is located in the lower receiving cavity 522 formed in the center of the baffle bracket 52, and the upper section 5121 is exposed to the baffle bracket 52, whereby the baffle bracket 52 forms the lower casing of the open type water pump 5.
- the outer circumference of the lower central receiving cavity 522 of the flow guiding bracket 52 has a lower step surface 524, and the lower portion of the drain plate 3 The surface abuts and the drain plate 3 rests on the lower step surface
- the top of the flow guiding bracket 52 is covered with a rotating spray arm 53 which is located above the drain plate 3, and the middle bottom thereof is formed with an upper receiving cavity 531 for accommodating the upper section 5121 of the blade 512, whereby the rotating spray arm 53 is rotated.
- the upper casing of the open type water pump 5 is formed, and the water pump 5 is used to pump out the water in the drain area 32, and the object to be cleaned (the dishes, vegetables, fruits, and the like described above) is washed by the rotary spray arm 53.
- the lower side of the flow guiding bracket 52 is open, and the water flow can enter the impeller 51 from below and from the side of the guiding bracket 52. That is, the water inlet of the open water pump 5 is located below and on the side of the guiding bracket 52, and the opposite side of the rotating spray arm 53 The top surface of the cavity 531 is closed, and the water flows out from the side of the upper receiving cavity 531. That is, the water outlet of the open water pump 5 is located on the side of the rotating spray arm 53 that accommodates the cavity 531.
- the rotating spray arm 53 includes a pair of upper cover 532 and a lower cover 533, and a flow passage communicating with the upper receiving cavity 531 is formed therebetween, and the upper receiving cavity 531 is located in the middle of the rotary spray arm 53.
- the flow passages are located on both sides of the upper receiving cavity 531.
- An upper stepped surface 525 is further provided at a position on the top outer periphery of the flow guiding bracket 52 at a position above the lower stepped surface 524, and abuts against the lower surface of the rotating spray arm 53, and the rotary spray arm 53 rests on the upper stepped surface 525.
- a plurality of water outlet holes 5321 are defined in the upper surface of the upper cover body 532. The water outlet holes 5321 are located above the flow channel. Corresponding to the flow channel, the water pumped by the impeller 51 enters the flow channel through the upper receiving cavity 531, thereby The water outlet hole 5321 is ejected, and the object to be cleaned is washed.
- the bottom plate 11 is located below the flow guiding bracket 52, that is, the water inlet of the open water pump 5 is provided with a flow guiding ring 54, the position of the guiding ring 54 corresponds to the guiding bracket 52, and the output shaft 41 of the motor 4 is from the guiding ring
- the center of 54 is connected to the shaft 511 of the impeller 51, and the upper surface of the guide ring 54 is gradually inclined upward from the periphery toward the center, whereby the distance from the lower surface of the flow guiding bracket 52 is gradually decreased from the periphery toward the center, even if The water flow passage there is gradually reduced from the periphery to the center, and the flow guiding ring 54 can guide the water flow entering at the water inlet to make it enter the lower receiving cavity 522 in an orderly manner, thereby greatly reducing The noise when the impeller 51 rotates in the water, and the water flow passage of the water inlet gradually decreases from the periphery to the center, so that the water flow has an acceleration process before entering the lower
- the upper surface of the guide ring 54 is a slope 541 which is gradually inclined upward from the periphery toward the center.
- the guide ring 54 can also be designed in other configurations.
- the upper surface of the guide ring 54 is an arcuate surface 542 that is gradually inclined upward from the periphery toward the center, and the curved surface is curved.
- the curved surface is concave.
- the lower surface of the flow guiding bracket 52 may also be provided with an annular flow guiding surface 523 corresponding to the air guiding ring 54.
- the shape of the flow guiding surface 523 may be symmetrical with the upper surface of the flow guiding ring 54.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
一种开放式水泵,包括上壳体、下壳体和叶轮(51),叶轮(51)包括中心轴(511)和叶片(512),叶片(512)在轴向上分为上段(5121)和下段(5122),下壳体的下方设置有导流环(54),导流环(54)与下壳体之间的水流通道由周边向中心逐渐减小。还公开了一种应用有上述开放式水泵的水槽式清洗机。在开放式水泵的入水口位置设置导流环,对在入水口处进入的水流进行导向,使其有序地进入到下容置空腔(522)内,由此降低了叶轮旋转汲水时的噪音,并且水流在进入到下容置空腔(522)前有一个加速的过程,有助于形成负压,获得较好的汲水效果。
Description
本发明涉及一种水泵,尤其是一种开放式水泵,以及开水泵的应用。
水泵在工作前,水泵和进水管必须灌满水,之后依靠高速旋转的叶轮,使液体在惯性离心力的作用下获得能量从而能提高其内压强,当叶轮快速旋转,叶片促使水很快旋转,随着离心力的作用从叶轮中飞出,水泵内的水被抛出后,叶轮的中心部分形成真空区域,之后水源的水在大气压力(或水压)的作用下进入到进水管内,这样循环不已,就可以实现连续抽水。因为水泵具有结构简单、操作容易、流量易于调节且适用于各种特殊性质物料的输送等优点,广泛应用于各个领域,大至各个工业场所,小至各种家用电器,如洗衣机、洗碗机、空调等。
为了使得水泵加工制造以及安装的便利,目前已出现了一种开放式的水泵,如公开号为EP0807396A2的欧洲专利公开的一种洗碗机,包括用于容纳盘子的洗涤室,支撑在洗涤室底部的喷射臂,泵出洗涤液对喷射臂加压的泵,泵包括叶轮,喷射臂的内表面限定了用于叶轮的壳体,允许洗涤液从壳体到喷射臂的喷嘴进行传递,叶轮包括在较低的边缘处向前弯曲的叶片,叶片的底部具有轴流式叶片部分,叶轮与驱动电机的花键轴接合,在电机无负载下启动后,轴流式叶片部分将流体抬起,从而泵进行正常工作。
然而上述这种开放式水泵,由于水泵的入水口在壳体的下方,来自壳体下方任一方向的水流进入到壳体内被叶轮的叶片抬起后从喷射臂喷淋而出,而由于水流无序的进入到水泵内,叶轮旋转汲水时,容易产生较大的噪音:并且水流刚进入壳体内时,其速度较缓,不利于形成负压,从而影响叶轮的汲水效果。
发明内容
本发明所要解决的第一个技术问题是针对上述现有技术存在的问题,提供一种开放式水泵,便于水泵汲水,并且汲水时噪音较小。
本发明所要解决的第二个技术问题是提供一种应用有上述开放式水泵的水槽式清洗机。
本发明解决上述第一个技术问题所采用的技术方案为:一种开放式水泵,包括上壳体、下壳体和叶轮,所述叶轮包括位于中心的轴和在轴的周面上沿周向均匀分布的多个
沿轴向延伸的叶片,所述叶片在轴向上分为相互连接的上段和下段,所述上壳体中形成有容置叶片上段的上容置空腔,所述下壳体中形成有叶片下段的下容置空腔,其特征在于:所述下壳体的下方,设置有导流环,所述导流环与下壳体之间的水流通道由周边向中心逐渐减小。
该逐渐减小的水流通道的形成方式可以有,在本发明的一个实施例中,所述导流环的上表面呈由周边向中心逐渐向上倾斜的斜面。在本发明的另一个实施例中,所述导流环的上表面呈由周边向中心逐渐向上倾斜的弧形面,所述弧形面呈上凸状或下凹状。上述形状均可以对在入水口处进入的水流进行导向,使其有序的进入到下容置空腔内,由此大大降低了叶轮旋转汲水时的噪音,并且由于入水口的水流通道由外向内逐渐减小,使得水流在进入到下容置空腔前有一个加速的过程,有助于形成负压,获得较好的汲水效果。
为了对水流进行更好的导向和加速,所述下壳体下表面与所述导流环对应的位置设置有相应的环形的导流面,导流面可以和导流环配合。
为便于驱动叶轮转动,所述叶轮的轴穿过所述导流环与电机的输出轴连接,电机转动时带动叶片转动进行汲水。
本发明解决上述第二个技术问题所采用的技术方案为:一种水槽式清洗机,包括形成洗涤空间的箱体,所述箱体包括水槽本体,其特征在于:所述水槽本体的底部至少中央部位形成有沥水区域,所述沥水区域上覆盖有带有沥水孔的沥水板,所述沥水区域内设置有如上所述的开放式水泵,所述导流环固定在所述水槽本体的底部。
在本发明的实施例中,所述上壳体为覆盖在叶轮上的旋转喷臂,所述旋转喷臂包括对合的上盖体和下盖体,所述下盖体的中间形成所述上容置空腔,由此将旋转喷臂作为开放式水泵的出水部件,水流从上容置空腔的侧面流出后进入流道。
为了便于水流从旋转喷臂喷出,所述旋转喷臂的上盖体上开设有出水孔,所述上盖体和下盖体之间形成有与所述上容置空腔连通的流道,所述出水孔与流道的位置对应,由叶轮泵出的水从上容置空腔的侧面流出,通过流道从出水孔喷淋而出。
在本发明的实施例中,所述下壳体为导流支架,导流支架的中心形成所述下容置空腔,所述导流支架的周向上设有多个纵向延伸的安装支脚,使得导流支架悬空设置在水槽本体的底部,由此水泵的入水口位于导流支架的下方和侧面,可以进行及时的补水。
为了便于对水泵进行清洗,所述导流支架顶部中心外周具有上台阶面,所述上壳体搁置于所述上台阶面上,清洗水泵时只需将上壳体从导流支架上拿下取出叶轮即可。
与现有技术相比,本发明的优点在于:在开放式水泵的入水口位置设置导流环,对在该入水口处进入的水流进行导向,使其有序的进入到下容置空腔内,由此大大降低了叶轮旋转汲水时的噪音,并且由于入水口的水流通道由外向内逐渐减小,使得水流在进入到下容置空腔前有一个加速的过程,有助于形成负压,获得较好的汲水效果;在水泵
的下壳体的下表面设置与导流环对应的导流面,可进一步加强水流进行导向和加速;采用了本发明的开放式水泵的水槽式清洗机,具有较好的汲水效果,使得旋转喷臂对水槽本体内的碗碟、蔬果等洗涤时喷淋效果好,清洗的较为干净。
图1为本发明实施例的水槽式清洗机的示意图;
图2为本发明实施例的水槽式清洗机的局部剖视图;
图3为本发明实施例的开放式水泵的分解结构示意图;
图4-1为本发明实施例中导流环的结构示意图;
图4-2为本发明的开放式水泵中导流环的另一实施例的结构示意图;
图4-3为本发明的开放式水泵中导流环的又一实施例的结构示意图。
以下结合附图实施例对本发明作进一步详细描述。
如图1-图3所示,为本发明的水槽式清洗机的一个优选实施例,该水槽式清洗机可以用于清洗碗碟、蔬菜、水果等,其包括水槽本体1,以及转动连接在水槽本体1顶部的盖板2,水槽本体1可以为家用的普通水槽,水槽本体1和盖板2形成洗涤空间,以容纳上述的碗碟、蔬菜、水果等,对其进行清洗。
水槽本体1的底板11至少在中央部位下凹,在底板11下凹部分的上方,间隔地覆盖有与下凹部分形状相同的沥水板3,沥水板3上开设有多个用于沥水的沥水孔31,沥水板3和底板11下凹部分之问间隔的空间形成沥水区域32,沥水板3与底板11的其他部分齐平。水槽本体1外侧,底板11的下方安装有电机4,电机4的输出轴41伸入到水槽本体1内后,位于底板11上方的沥水区域32内。
沥水区域32内设置有开放式的水泵5,水泵5包括叶轮51,叶轮51包括位于中心的中空的轴511以及多个设置在轴511周面上的叶片512,叶片512在轴511的周面上均匀分布并且沿轴向延伸,并且叶片512在轴向上分为相互连接的上段5121和下段5122,轴511的下端与电机4的输出轴41连接,由此电机4转动时可带动叶轮51转动。
叶轮51外设置有导流支架52,导流支架52周向上设有多个安装支脚521,可通过螺钉等将安装支脚521与底板11或电机4固定,安装支脚521纵向延伸,使得导流支架52的底面与沥水区域32的底面之间具有间隔形成悬空设置在水槽本体1底部的状态,以供沥水区域32内的水流通过。叶片512的下段5122位于导流支架52中心形成的下容置空腔522内,上段5121露出于导流支架52,由此,导流支架52形成开放式水泵5的下壳体。导流支架52中心下容置空腔522的外周具有下台阶面524,与沥水板3的下
表面抵接,沥水板3搁置于下台阶面524上。
导流支架52的顶部覆盖有旋转喷臂53,旋转喷臂53位于沥水板3上方,其中间底部形成有上容置空腔531,以容纳叶片512的上段5121,由此,旋转喷臂53形成开放式水泵5的上壳体,水泵5用于将沥水区域32内的水泵出,通过旋转喷臂53对待清洗对象(上文所述的碗碟、蔬菜、水果等)进行冲洗。
导流支架52的下方敞开,水流可以从导流支架52的下方和侧面进入到叶轮51,即开放式水泵5的入水口位于导流支架52的下方和侧面,旋转喷臂53的相对上容置空腔531的顶面封闭,水流从上容置空腔531的侧面流出,即开放式水泵5的出水口位于旋转喷臂53内上容置空腔531的侧面。
旋转喷臂53包括对合的上盖体532和下盖体533,两者之间形成与上容置空腔531连通的流道,上容置空腔531位于旋转喷臂53的中间,而流道位于上容置空腔531的两侧。导流支架52顶部中心外周、位于下台阶面524上方的位置处还设有上台阶面525,与旋转喷臂53的下表面抵接,旋转喷臂53搁置在上台阶面525上。上盖体532上表面开设有多个出水孔5321,出水孔5321位于流道的上方,与流道相对应,由叶轮51泵出的水通过上容置空腔531进入到流道,进而从出水孔5321喷出,对待清洗对象进行冲洗。
底板11上位于导流支架52的下方,即开放式水泵5的入水口设有导流环54,导流环54的位置与导流支架52对应,并且电机4的输出轴41从导流环54中心穿过与叶轮51的轴511连接,导流环54的上表面由周边向中心逐渐向上倾斜,由此使得和导流支架52下表面之间的距离由周边向中心逐渐减小,即使得该处的水流通道由周边向中心逐渐减小,导流环54可对在该入水口处进入的水流进行导向,使其有序的进入到下容置空腔522内,由此大大降低了叶轮51旋转汲水时的噪音,并且由于入水口的水流通道由周边向中心逐渐减小,使得水流在进入到下容置空腔522前有一个加速的过程,有助于形成负压,获得较好的汲水效果。
在本实施例中,参见图4-1,导流环54的上表面呈由周边向中心逐渐向上倾斜的斜面541。
导流环54还可以设计成其他结构,如图4-2所示的另一个实施例中,导流环54的上表面呈由周边向中心逐渐向上倾斜的弧形面542,该弧形面呈上凸状;如图4-3所示的又一个实施例中,该弧形面呈下凹状。
相应的,导流支架52的下表面也可以设置与导流环54对应的环形的导流面523。导流面523的形状可以与导流环54的上表面对称。
Claims (10)
- 一种开放式水泵,包括上壳体、下壳体和叶轮(51),所述叶轮(51)包括位于中心的轴(511)和在轴(511)的周面上沿周向均匀分布的多个沿轴向延伸的叶片(512),所述叶片(512)在轴向上分为相互连接的上段(5121)和下段(5122),所述上壳体中形成有容置叶片(512)上段(5121)的上容置空腔(531),所述下壳体中形成有容置叶片(512)下段(5122)的下容置空腔(522),其特征在于:所述下壳体的下方设置有导流环(54),所述导流环(54)与下壳体之间的水流通道由周边向中心逐渐减小。
- 如权利要求1所述的开放式水泵,其特征在于:所述导流环(54)的上表面呈由周边向中心逐渐向上倾斜的斜面(541)。
- 如权利要求1所述的开放式水泵,其特征在于:所述导流环(54)的上表面呈由周边向中心逐渐向上倾斜的弧形面(542),所述弧形面(542)呈上凸状或下凹状。
- 如权利要求1-3中任一项所述的开放式水泵,其特征在于:所述下壳体下表面与所述导流环(54)对应的位置设置有相应的环形的导流面(523)。
- 如权利要求1-3中任一项所述的开放式水泵,其特征在于:所述叶轮(51)的轴(511)穿过所述导流环(54)与电机的输出轴(41)连接。
- 一种水槽式清洗机,包括形成洗涤空间的箱体,所述箱体包括水槽本体(1),其特征在于:所述水槽本体(1)的底部至少中央部位形成有沥水区域(32),所述沥水区域(32)上覆盖有带有沥水孔(31)的沥水板(3),所述沥水区域(32)内设置有如权利要求1-5中任一项所述的开放式水泵,所述导流环(54)固定在所述水槽本体(1)的底部。
- 如权利要求6所述的水槽式清洗机,其特征在于:所述上壳体为覆盖在叶轮(51)上的旋转喷臂(53),所述旋转喷臂(53)包括对合的上盖体(532)和下盖体(533),所述下盖体(533)的中间形成所述上容置空腔(531)。
- 如权利要求7所述的水槽式清洗机,其特征在于:所述旋转喷臂(53)的上盖体(532)上开设有出水孔(5321),所述上盖体(532)和下盖体(533)之间形成有与所述上容置空腔(531)连通的流道,所述出水孔(5321)与流道的位置对应。
- 如权利要求6所述的水槽式清洗机,其特征在于:所述下壳体为导流支架(52),导流支架(52)的中心形成所述下容置空腔(522),所述导流支架(522)的周向上设有多个纵向延伸的安装支脚(521),使得导流支架(52)悬空设置在水槽本体(1)的底部。
- 如权利要求9所述的水槽式清洗机,其特征在于:所述导流支架(52)顶部中心外周具有上台阶面(525),所述上壳体搁置于所述上台阶面(525)上。
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