CN115628233A - Guide vane structure and open type water pump and cleaning machine - Google Patents
Guide vane structure and open type water pump and cleaning machine Download PDFInfo
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- CN115628233A CN115628233A CN202211216010.XA CN202211216010A CN115628233A CN 115628233 A CN115628233 A CN 115628233A CN 202211216010 A CN202211216010 A CN 202211216010A CN 115628233 A CN115628233 A CN 115628233A
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- water
- guide vane
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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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
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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
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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
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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
The invention relates to a guide vane structure and an open water pump and cleaning machine, wherein the guide vane structure comprises a cover plate and guide vanes, the cover plate is disc-shaped, at least two guide vanes are vertically arranged on the lower surface of the cover plate, each guide vane spirally extends along the circumferential direction on the edge of the cover plate and forms a semi-surrounding structure, a first water distributing opening is formed at the opening of the semi-surrounding structure, a second water distributing opening is partially and alternately surrounded between every two adjacent guide vanes, and a functional area capable of bidirectionally distributing and pressurizing water flow is formed in the area inside the semi-surrounding structure. Rivers are at the circumference in-process that flows, are divided into two strands through first branch mouth of a river, second branch mouth of a river respectively, and the half surrounding structure that guide vane formed is for apron central offset, and this biasing structure cooperates with guide vane's helical structure, pressurizes rivers jointly, is favorable to further improving the pressurization effect to reduce energy loss, on the basis of simplifying water pump structure, make rivers pressure satisfy the pumping demand.
Description
Technical Field
The invention relates to the technical field of dish washing machines, in particular to a guide vane structure, an open type water pump and a cleaning machine.
Background
For dishwashers with large volumes, at least two groups of spray arms arranged one above the other are generally provided in order to achieve a better washing result. When the dishwasher works, the washing pump respectively conveys water to the spraying arms for spraying up and down, the water falling back after washing the tableware is gathered in the water cup at the bottom of the dishwasher, and the washing pump conveys the falling back water to the spraying arms again to complete a water flow cycle.
For example, chinese patent application publication No. CN106859563A, energy saving dishwasher (application No. CN 201611232345.5), discloses a structure comprising a cavity for receiving dishes and providing a washing space, a spray system for spraying water to wash the dishes, and a pump body for pumping water and supplying water to the spray system; the spraying system is arranged in the cavity; the water pumping end of the pump body is communicated with the cavity, and the water supply end is communicated with the spraying system; the spraying system comprises an inner water pipe and more than two sets of spraying devices, and the more than two sets of spraying devices are respectively arranged on the inner water pipe; the water supply end of the pump body is connected with a water distribution device, the water distribution device is provided with more than two water outlets corresponding to more than two sets of spraying devices, and the spraying devices are communicated with the corresponding water outlets; when the spraying device works, the water distribution device conducts more than one water outlet according to the instruction, so that more than one set of spraying device can perform cleaning work.
In the above-mentioned current dish washer that can carry out bottom and spray, top sprays, a pump for supplying water for the spraying system generally adopts closed structure, is about to locate the spiral case of washing pump in the box below, is provided with ability pivoted impeller in the spiral case, and the water inlet of washing pump spiral case is linked together bottom the washing chamber, and the delivery port of spiral case is connected with the water diversion device, and this water diversion device divides into the first branch road of supplying water to bottom spray arm and the second branch road of supplying water to top spray arm with rivers. Because the water pressure of the top spraying water and the bottom spraying water is independently supplied by the washing pump, the lift, the flow and the impact force of the water flow on each branch are greatly reduced after the water flow is divided, and the cleaning effect is influenced.
In order to solve the above problems, the applicant's prior patent ZL 202023348766.9 "a dual pump system and a cleaning machine using the dual pump system" discloses a structure, wherein the dual pump system comprises an upper impeller, a lower impeller, an upper housing, a lower housing and a driving member, the upper housing has a first accommodating cavity for mounting the upper part of a first blade, the upper part of the lower housing has a second accommodating cavity for mounting the lower part of the first blade, a first water inlet for supplying water into the second accommodating cavity is formed on the side wall of the lower housing, a third accommodating cavity for mounting the lower impeller is formed on the lower part of the lower housing, and a second water inlet and a water outlet are formed on the side wall and/or the bottom wall of the lower housing. The double-pump system is an open system, the second accommodating cavity, the first accommodating cavity and the upper impeller are used for spraying water at the bottom, the third accommodating cavity and the lower impeller are used for spraying water at the top and/or the middle, and the power of the two paths of water flow is independently supplied by the corresponding pumps, so that the lift and the water flow of each path of water flow are improved, and the cleaning effect is favorably improved.
However, because the independent upper impeller is adopted for bottom layer water supply and the independent lower impeller is adopted for upper layer water supply, the whole structure is relatively complex, the production cost is high, and the water pumping effect cannot be considered on the basis of saving the cost.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a guide vane structure having water diversion and pressurization functions so as to simplify the water pump structure and improve the water pumping efficiency, in view of the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide an open water pump using the above-mentioned guide vane structure, aiming at the current situation of the prior art.
The third technical problem to be solved by the present invention is to provide a cleaning machine using the above open water pump, aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving at least one technical problem is as follows:
the utility model provides a stator structure, includes apron and guide vane, the apron is discoid, guide vane is at least two and vertical arrangement at the lower surface of apron, each guide vane extends and forms half surrounding structure along circumference spiral at the apron edge, and the opening part of this half surrounding structure forms first branch mouth of a river, adjacent two partly crisscross the closure second divides the mouth of a river between the guide vane, regional formation within the half surrounding structure can carry out two-way reposition of redundant personnel and the pressurized functional area to rivers.
Preferably, along the flow direction of the water flow in the circumferential direction, the starting end of the guide vane is located inside the edge of the cover plate, and a flow dividing structure for dividing the water flow into a functional area or a first water dividing opening is formed; the tail ends of the guide vanes are positioned on the outer circumference of the cover plate. And in the assembled state, the edge of the cover plate is tightly attached to the inner wall surface of the water pump volute to form sealing, and only the second water distributing opening is partially opened to allow water to flow through the second water distributing opening and be conveyed upwards. The flow dividing structure is favorable for improving the water dividing effect and reducing energy loss, and the tail end of the guide vane is positioned on the outer circumference of the cover plate, so that the assembly sealing property between the guide vane structure and the water pump volute can be improved, water is prevented from being drained, and the water flow is guaranteed to have higher water pressure and lift.
Preferably, a projection of the outer side wall of the guide vane on a horizontal plane is located on the outer circumference of the cover plate, and a distance from the inner side wall of the guide vane to the center of the cover plate gradually increases along a water flow direction to form a pressurizing curved surface for pressurizing water to be drawn through the second water diversion port. The pressurizing curved surface can pressurize water flow so as to improve the pressure and the lift of output water flow and improve the cleaning effect.
Preferably, the guide vane includes a first guide vane and a second guide vane, and along the flow direction of the water flow in the circumferential direction, the starting end of the first guide vane forms the diversion structure, the tail end of the first guide vane is located at the outer edge of the cover plate and is used for constraining the corresponding second water diversion port, the starting end of the second guide vane is used for constraining the corresponding second water diversion port, and the tail end of the second guide vane is located on the outer circumference of the cover plate. Further preferably, the guide vane further includes a third guide vane, the third guide vane is located between the first guide vane and the second guide vane, and a second water diversion opening is respectively constrained between a starting end of the third guide vane and a tail end of the first guide vane and between a tail end of the third guide vane and a starting end of the second guide vane. The guide vane has the following functions: (1) The first flow deflector, the second flow deflector and the third flow deflector are matched to pressurize water flow in all the water pump volutes in the circumferential direction; (2) The starting end of the first flow deflector is used for circumferentially dividing water, so that one part of water is output through the first water dividing port, the other part of water continuously flows circumferentially in the functional area, and most of the part of water is output through the second water dividing port; (3) The inner peripheral wall of the second flow deflector pressurizes the water to be output through the first water dividing port due to the spiral extension of each flow deflector; (4) The first flow deflector, the second flow deflector and the third flow deflector jointly enclose two flow guide ports, and the two flow guide ports are arranged at intervals along the water flow direction in the circumferential direction, so that the water flow interference and the energy loss are reduced, and the water pressure of water flow output through the second water diversion port is improved.
Preferably, the distance from the starting end of the first guide vane to the center of the cover plate is less than the distance from the starting end of the second guide vane to the center of the cover plate. The structure is favorable for improving the water distribution effect and reducing the energy loss.
Preferably, a diversion port for enabling water at the second water diversion port to enter the cover plate upwards is formed at the joint of two adjacent diversion blades, so that the water flow can be conveyed upwards according to requirements.
Preferably, the upper surface of the cover plate is provided with an upwardly extending baffle plate, the baffle plate encloses a confluence flow channel for gathering the water guided upwards through the flow guide opening, and the confluence flow channel has an opening arranged upwards. The structure can rectify and gather the flow of the water conveyed upwards so as to reduce energy loss and improve water pressure.
Preferably, the baffle comprises an arc section located at the central part of the cover plate, a first curved section smoothly extending from a first end of the arc section to a first edge of the flow guide port, and a second curved section smoothly extending from a second end of the arc section to a second edge of the flow guide port.
An open water pump comprising:
the water inlet is formed in the bottom of the volute, the first water outlet is formed in the top of the volute, and the second water outlet is formed in the side of the volute;
the guide vane structure is arranged in the volute, the cover plate divides an inner cavity of the volute into an upper cavity and a lower cavity, the lower cavity is communicated with the first water distributing opening and the second water outlet, and the upper cavity is communicated with the second water distributing opening and the first water outlet; and
the centrifugal impeller is rotatably arranged in the functional area in the lower cavity and is used for sucking water below the volute into the lower cavity through the water suction port and discharging the water in the lower cavity through the first water outlet and the second water outlet after the water is divided and pressurized through the functional area.
Preferably, the outer diameter of the centrifugal impeller is D2, the base circle diameter of the guide vane is D3, and D3= (1.01 to 1.05) D2. Preferably, the bottom of the centrifugal impeller is provided with a liquid suction port arranged corresponding to the water suction port, the side part of the centrifugal impeller is provided with a liquid outlet port corresponding to the functional area, and the included angle between the absolute speed of liquid flow at the liquid outlet port and the circumferential direction is alpha 2 The inlet angle of the second water dividing port corresponding to the guide vane is alpha 3d ，tgα 3d ＝(1.1～1.3)α 2 . The structure is favorable for reducing energy loss and improving the efficiency of the water pump.
The utility model provides a cleaning machine, includes box, bottom spray arm and top spray arm, still includes above-mentioned open water pump, the bottom half is provided with recessed return water region, and the top in this return water region covers there is the filter, the return water region is located to the spiral case, the clearance that absorbs water has between the water sucking mouth of spiral case bottom and the return water region bottom, the first delivery port at spiral case top is located on the filter and is linked together with the water inlet of bottom spray arm, the top spray arm is located upper portion in the box and is linked together through the second delivery port of water supply line with the spiral case.
Compared with the prior art, the invention has the advantages that: the invention provides a guide vane structure for an open water pump, wherein a guide vane which is positioned at the edge of the guide vane structure and extends spirally encloses a functional area with water dividing and pressurizing functions, water flow is divided into two parts through a first water dividing opening and a second water dividing opening respectively in the circumferential flowing process, a semi-enclosed structure formed by the guide vane is offset relative to the center of a cover plate, and the offset structure is matched with the spiral structure of the guide vane to pressurize the water flow together, so that the pressurizing effect is improved, the energy loss is reduced, and the water flow pressure meets the water pumping requirement on the basis of simplifying the water pump structure.
Drawings
FIG. 1 is a schematic structural view of a guide vane structure according to an embodiment of the present invention;
FIG. 2 is a schematic bottom view of FIG. 1;
FIG. 3 is a bottom view of FIG. 1;
FIG. 4 is a schematic diagram of an open water pump according to an embodiment of the present invention;
FIG. 5 is a schematic bottom view of FIG. 4;
FIG. 6 is a cross-sectional view in the longitudinal direction of FIG. 4;
FIG. 7 is a cross-sectional view in the transverse direction of FIG. 4;
FIG. 8 is a schematic view of a part of the structure of a cleaning machine according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a cleaning machine according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
As shown in fig. 1 to 9, the guide vane structure 2 of the present embodiment includes a cover plate 21 and guide vanes 22, the cover plate 21 is disc-shaped, the guide vanes 22 are at least two and are vertically arranged on the lower surface of the cover plate 21, each guide vane 22 extends spirally along the circumferential direction at the edge of the cover plate 21 and forms a semi-surrounding structure a, a first water dividing opening 201 is formed at an opening of the semi-surrounding structure a, a second water dividing opening 202 is partially enclosed in a staggered manner between two adjacent guide vanes 22, and a functional region B capable of performing bidirectional water flow dividing and pressurizing is formed in a region inside the semi-surrounding structure a.
Along the flow direction of the water flow in the circumferential direction, the starting end of the guide vane 22 is located within the edge of the cover plate 21, and a flow dividing structure 2211 for dividing the water flow into a functional area B or into the first water dividing port 201 is formed; the ends of the guide vanes 22 are located on the outer circumference of the cover plate 21. In the assembled state, the edge of the cover plate 21 is tightly attached to the inner wall surface of the water pump volute to form a seal, and only the second water diversion opening 202 is partially opened to allow water to flow through the second water diversion opening 202 and be conveyed upwards. The flow dividing structure is favorable for improving the water dividing effect and reducing energy loss, and the tail end of the guide vane 22 is positioned on the outer circumference of the cover plate 21, so that the assembly sealing property between the guide vane structure 2 and the water pump volute can be improved, water is prevented from being drained, and the water flow is ensured to have higher water pressure and lift.
Specifically, the projection of the outer side wall of the guide vane 22 on the horizontal plane is located on the outer circumference of the cover plate 21, and the distance from the inner side wall of the guide vane 22 to the center of the cover plate 21 gradually increases along the water flow direction to form a pressurization curved surface 220 for pressurizing the water to be pumped through the second water diversion port 202. The pressurized curved surface 220 can pressurize the water flow to increase the pressure and lift of the output water flow and improve the cleaning effect.
The guide vane of this embodiment includes a first guide vane 221, a second guide vane 222, and a third guide vane 223, along the flow direction of the water flow in the circumferential direction, the start end of the first guide vane 221 forms a diversion structure 2211, the end is located at the outer edge of the cover plate 21 and is used for constraining the corresponding second water distribution opening 202, the start end of the second guide vane 222 is used for constraining the corresponding second water distribution opening 202, and the end is located on the outer circumference of the cover plate 21. The third guide vane 223 is located between the first guide vane 221 and the second guide vane 222, and the second water diversion opening 202 is respectively constrained between the starting end of the third guide vane 223 and the end of the first guide vane 221, and between the end of the third guide vane 223 and the starting end of the second guide vane 222. The distance from the starting end of the first baffle 221 to the center of the cover plate 21 is less than the distance from the starting end of the second baffle 222 to the center of the cover plate 21, which is favorable for improving the water diversion effect and reducing the energy loss. The joint of two adjacent guide vanes 22 is formed with a guide opening 203 for the water of the second water diversion opening 202 to enter the cover plate 21 upwards, so as to convey the water upwards according to the requirement. The guide vane has the following functions: (1) The first guide vane 221, the second guide vane 222 and the third guide vane 223 cooperate to pressurize water flow in all the water pump volutes in the circumferential direction; (2) The starting end of the first flow deflector 221 is used for circumferentially shunting water, so that part of water is output through the first water dividing port 201, the other part of water continuously flows circumferentially in the functional area, and most of the part of water is output through the second water dividing port 202; (3) Since each guide vane 22 extends spirally, the inner circumferential wall of the second guide vane 202 pressurizes the water to be output through the first water diversion opening 201; (4) The first guide vane 221, the second guide vane 222 and the third guide vane 223 enclose the two guide openings 203 together, and the two guide openings 203 are circumferentially arranged at intervals along the water flow direction, so that the water flow interference and the energy loss are reduced, and the water pressure of the water flow output through the second water diversion opening 202 is improved.
In the present embodiment, the upper surface of the cover plate 21 is provided with a baffle plate 23 extending upward, the baffle plate 23 enclosing a confluence flow channel 230 for gathering the water guided upward through the diversion opening 203, and the confluence flow channel 230 having an opening disposed upward. The baffle 23 includes an arc 231 located at the center of the cover plate 21, a first curved section 232 extending smoothly from the first end of the arc 231 to the first edge of the flow guide opening 203, and a second curved section 233 extending smoothly from the second end of the arc 231 to the second edge of the flow guide opening 203. The structure can rectify and gather the upward water to reduce energy loss and improve water pressure. Because the water conservancy diversion mouth 203 of this embodiment is two sets of and at apron 21 interval arrangement in circumference, baffle 23 still includes the third curved surface section 234 of locating between first curved surface section 232 and second curved surface section 233, this third curved surface section 234 is used for separating the runner 230 that converges into and becomes the subchannel that corresponds different water conservancy diversion mouths 203 respectively, the outer end of third curved surface section 234 links up with the guide vane 22 top between two water conservancy diversion mouths 203 mutually, the inner is close to the opening department of circular arc section 231, two branch's runners assemble before getting into the opening of circular arc section 231, in order to further guide, the rectification, reduce rivers and interfere and energy loss.
The open type water pump comprises a volute 1, a guide vane structure 2 and a centrifugal impeller 3, wherein the bottom of the volute 1 is provided with a water suction port 13, the top of the volute 1 is provided with a first water outlet 11, and the side part of the volute is provided with a second water outlet 12; the guide vane structure 2 is arranged in the volute 1, the cover plate 21 divides an inner cavity of the volute 1 into an upper cavity 101 and a lower cavity 102, the lower cavity 102 is communicated with the first water dividing opening 201 and the second water outlet 12 to form a flow channel of a water flow, and the upper cavity 101 is communicated with the second water dividing opening 202 and the first water outlet 11 to form a flow channel of a water flow. The centrifugal impeller 3 is rotatably disposed in the functional area B within the lower chamber 102, and is used for sucking water below the volute 1 into the lower chamber 102 through the water suction port 11, and discharging the water in the lower chamber 102 through the first water outlet 11 and the second water outlet 12 after being divided and pressurized by the functional area B.
The outer diameter of the centrifugal impeller 3 is D2, the diameter of the base circle of the guide vane 22 is D3, the base circle is the starting point circle of the spiral line of the guide vane structure, and D3= (1.01 to 1.05) D2. The bottom of the centrifugal impeller 3 is provided with a liquid suction port 31 arranged corresponding to the water suction port 13, the side part is provided with a liquid outlet 32 corresponding to the functional area B, and the included angle between the absolute speed of liquid flow at the liquid outlet 32 and the circumferential direction is alpha 2 The inlet angle of the guide vane 33 corresponding to the second water dividing opening 202 is alpha 3d ，tgα 3d ＝(1.1～1.3)α 2 . The structure is favorable for reducing energy loss and improving the efficiency of the water pump.
The cleaning machine of this embodiment includes box 4, bottom spray arm 5 and top spray arm 6, still include above-mentioned open water pump, box 4 bottom is provided with recessed return water region 41, the top of this return water region 41 covers there is filter 42, during the return water region 41 was located to spiral case 1, the clearance that absorbs water has between the water sucking mouth 13 of spiral case 1 bottom and the return water region 41 bottom, first delivery port 11 at spiral case 1 top is located on filter 42 and is linked together with the water inlet of bottom spray arm 5, top spray arm 6 locates upper portion and is linked together through the second delivery port 12 of water supply pipe 7 with spiral case 1 in the box 4. The bottom of the box 4 is provided with a motor 8, and an output shaft 81 of the motor 8 penetrates upwards through the bottom wall of the box 4 to be connected with the centrifugal impeller 3 so as to drive the impeller 3 to rotate.
The embodiment provides a stator structure for open water pump, be located 2 edges of this stator structure and the guide vane 22 of spiral extension and enclosed and closed the functional region B who has concurrently divided water and pressurization effect, rivers are at the circumference flow in-process, respectively through first branch mouth of a river 201, second branch mouth of a river 202 is shunted into two strands, and half encirclement structure A that guide vane 22 formed is for apron 21 central bias, this biasing structure cooperates with guide vane 22's helical structure, pressurize rivers jointly, be favorable to further improving the pressurization effect, thereby reduce energy loss, on the basis of simplifying water pump structure, make rivers pressure satisfy the pumping demand.
Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.
Claims (14)
1. A stator structure, its characterized in that: including apron (21) and guide vane (22), guide vane (22) are at least two and vertical arrangement at the lower surface of apron (21), each guide vane (22) form half surrounding structure (A) jointly at apron (21) edge, and the opening part of this half surrounding structure (A) forms first branch mouth of a river (201), and adjacent two partly crisscross the enclosing of portion between guide vane (22) closes second branch mouth of a river (22), regional formation in half surrounding structure (A) can carry out two-way reposition of redundant personnel and pressor functional area (B) to rivers.
2. The guide vane structure of claim 1, wherein: the cover plate (21) is disc-shaped, each guide vane (22) extends spirally along the circumferential direction at the edge of the cover plate (21), the starting end of each guide vane (22) is positioned in the edge of the cover plate (21) along the flow direction of water flow in the circumferential direction, and a flow dividing structure (2211) for dividing the water flow into a functional area (B) or a first water dividing opening (201) is formed; the tail end of the guide vane (22) is positioned on the outer circumference of the cover plate (21).
3. The guide vane structure of claim 2, wherein: the projection of the outer side wall of the guide vane (22) on the horizontal plane is positioned on the outer circumference of the cover plate (21), and the distance from the inner side wall of the guide vane (22) to the center of the cover plate (21) is gradually increased along the water flow direction so as to form a pressurizing curved surface (220) for pressurizing water to be pumped out through the second water diversion port (22).
4. The guide vane structure of claim 3, wherein: the guide vane (22) comprises a first guide vane (221) and a second guide vane (222); along the flow direction of the water flow in the circumferential direction, the starting end of the first guide vane (221) forms the flow dividing structure (2211), the tail end of the first guide vane is located at the outer edge of the cover plate (21) and used for constraining the corresponding second water dividing port (22), the starting end of the second guide vane (222) is used for constraining the corresponding second water dividing port (202), and the tail end of the second guide vane is located on the outer circumference of the cover plate (21).
5. The guide vane structure of claim 4, wherein: the distance from the starting end of the first guide vane (221) to the center of the cover plate (21) is smaller than the distance from the starting end of the second guide vane (222) to the center of the cover plate (21).
6. The guide vane structure of claim 4, wherein: the guide vane (22) further comprises a third guide vane (223), the third guide vane (223) is located between the first guide vane (221) and the second guide vane (222), and a second water diversion port (22) is respectively constrained between the starting end of the third guide vane (223) and the tail end of the first guide vane (221), and between the tail end of the third guide vane (223) and the starting end of the second guide vane (222).
7. The guide vane structure according to any one of claims 1 to 6, characterized in that: a diversion port (203) for the water of the second water diversion port (22) to enter the cover plate (21) upwards is formed at the joint of the two adjacent diversion blades (22).
8. The guide vane structure of claim 7, wherein: the upper surface of the cover plate (21) is provided with a baffle plate (23) extending upwards, the baffle plate (23) encloses a confluence flow channel (230) for gathering the water guided upwards through the flow guide opening (203), and the confluence flow channel (230) is provided with an opening arranged upwards.
9. The guide vane structure of claim 8, wherein: the baffle (23) comprises an arc section (231) positioned at the central part of the cover plate (21), a first curved section (232) which smoothly extends from the first end of the arc section (231) to the first edge of the flow guide opening (203), and a second curved section (233) which smoothly extends from the second end of the arc section (231) to the second edge of the flow guide opening (203).
10. The guide vane structure of claim 9, wherein: flow guide opening (203) be two sets of and at apron (21) circumference upward interval arrangement, baffle (23) are still including third curved surface section (234) of locating between first curved surface section (232) and second curved surface section (233), this third curved surface section (234) are used for separating confluence flow channel (230) into the subchannel who corresponds different flow guide opening (23) respectively, the guide vane top between the outer end of third curved surface section (234) and two guide openings links up mutually, the inner is close to the uncovered department of circular arc section (231), two branch runners assemble before the uncovered of entering circular arc section (231).
11. An open water pump, comprising:
the water-saving device comprises a volute (1), wherein the bottom of the volute (1) is provided with a water suction port (13), the top of the volute (1) is provided with a first water outlet (11), and the side part of the volute is provided with a second water outlet (12);
the guide vane structure of any one of claims 1 to 10, which is arranged in the volute (1), the cover plate (21) divides an inner cavity of the volute (1) into an upper cavity (101) and a lower cavity (102), the lower cavity (102) is communicated with the first water dividing port (201) and the second water outlet (12), and the upper cavity (101) is communicated with the second water dividing port (22) and the first water outlet (11); and
the centrifugal impeller (3) is rotatably arranged in a functional area (B) in the lower cavity (102) and is used for sucking water below the volute (1) into the lower cavity (102) through the water suction port (13) and discharging the water in the lower cavity (102) through the first water outlet (11) and the second water outlet (12) after the water is divided and pressurized through the functional area (B).
12. The open water pump of claim 11, wherein: the outer diameter of the centrifugal impeller (3) is D2, the base circle diameter of the guide vane (22) is D3, and D3= (1.01-1.05) D2.
13. The open water pump of claim 11, wherein: the bottom of the centrifugal impeller (3) is provided with a liquid suction port (31) arranged corresponding to the water suction port (13), the side part of the centrifugal impeller is provided with a liquid outlet (32) corresponding to the functional area (B), and the included angle between the absolute speed of liquid flow at the liquid outlet (32) and the circumferential direction is alpha 2 The inlet angle of the second water diversion opening (22) corresponding to the guide vane (22) is alpha 3d ，tgα 3d =(1.1 ~ 1.3)α 2 。
14. The utility model provides a cleaning machine, includes box (4), bottom spray arm (5) and top spray arm (6), its characterized in that: the open type water pump further comprises the open type water pump according to any one of claims 10 to 13, a concave water return area (41) is arranged at the bottom of the box body (4), a filter plate (42) covers the top of the water return area (41), the volute (1) is arranged in the water return area (41), a water suction gap is formed between a water suction port (13) at the bottom of the volute (1) and the bottom of the water return area (41), a first water outlet (11) at the top of the volute (1) is located above the filter plate (42) and communicated with a water inlet of the bottom spray arm (5), and the top spray arm (6) is arranged at the middle upper part of the box body (4) and communicated with a second water outlet (12) of the volute (1) through a water feeding pipeline (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211216010.XA CN115628233A (en) | 2022-09-30 | 2022-09-30 | Guide vane structure and open type water pump and cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211216010.XA CN115628233A (en) | 2022-09-30 | 2022-09-30 | Guide vane structure and open type water pump and cleaning machine |
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| Publication Number | Publication Date |
|---|---|
| CN115628233A true CN115628233A (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211216010.XA Pending CN115628233A (en) | 2022-09-30 | 2022-09-30 | Guide vane structure and open type water pump and cleaning machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067814A1 (en) * | 2022-09-30 | 2024-04-04 | 宁波方太厨具有限公司 | Water flow system for washer, and washer |
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2022
- 2022-09-30 CN CN202211216010.XA patent/CN115628233A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067814A1 (en) * | 2022-09-30 | 2024-04-04 | 宁波方太厨具有限公司 | Water flow system for washer, and washer |
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