CN109846437A - A kind of water pump structure and dish-washing machine of dish-washing machine - Google Patents

Abstract

The present invention provides a kind of water pump structure of dish-washing machine and dish-washing machine, the water pump structure has included: the power actuated pump shaft of transmitting；The lower end of the pump shaft is set and the water impeller of drainage power is provided；It is communicated with draining water inlet pipe and drains the water drain cavity of outlet pipe, the water impeller is located in the water drain cavity；With the baffle structure of radially fixed setting, the flow direction of the water flow for guiding the water impeller to push in the water drain cavity.By the baffle structure of radially fixed setting, in the water flow flowing that water impeller pushes, baffle structure block water flow radially drains into water flow in draining water inlet pipe or draining outlet pipe；Forward or reverse by water impeller, the indoor water flow of drainage cavity is pushed forward or reverse, that is, water impact drains face or the second drainage face to the first of baffle structure；Since baffle structure is fixedly installed, the problem of being conducive to the stability of baffle structure, guarantee the effect of drainage, avoid the occurrence of drainage failure.

Description

A kind of water pump structure and dish-washing machine of dish-washing machine

Technical field

The invention belongs to dish-washing machine technical fields, and in particular to a kind of water pump structure and dish-washing machine of dish-washing machine.

Background technique

With the improvement of living standards, requirement of the consumer to quality of the life is higher and higher, thus quality, property to product The requirement of the various aspects such as the intelligence of the hommization, operation that can, use is also higher and higher.Dish-washing machine is as a outstanding product Also it gradually enters into people's lives, dish-washing machine technology generally carries out the normal operation of dish-washing machine with two pumps at present, i.e., One washing pump, a draining pump, two pumps are independent pump body structure, drive washing pump and draining pump respectively by two motors Work.The working principle of dish-washing machine is that washing pump will enter in the water pump to the spray arm of dish-washing machine of internal cavity of bowl washer, spray arm Spray apertures and drive hole are provided with, under the action of reaction force, spray arm rotation, the washing water that spray arm sprays sputters at bowl It on the tableware of dish stand, realizes the washing to tableware and washes away, after a washing process, the draining pump work of dish-washing machine will Dirty water in internal cavity of bowl washer excludes.

Application No. is the Chinese patents of CN201611262939.0 to disclose a kind of use in dishwasher washing draining integrated pump, packet It includes pump and provides the motor of power for pump, pump includes being provided with sealing ring between pump upper casing and pump lower casing, and the inside of pump is equipped with For switch washing and draining two kinds of operating modes reversal valve, the inside of pump be additionally provided with impeller and be mounted on motor shaft and Disintegrating slag blade above impeller, disintegrating slag blade and impeller are fixed by fastening nut；It pumps upper casing and is equipped with water inlet, pump lower casing Equipped with washing water outlet, discharge outlet and commutation valve housing, reversal valve is mounted on pump lower casing by the valve housing that commutates.

Application No. is the Chinese patents of CN201720341938.9 to disclose a kind of washing draining integrated pump, including power dress It sets, washing pump, draining pump, intake chamber, power device includes electric machine casing, motor, stretches out in motor shaft except electric machine casing； Washing pump includes washing pump case, washing pump chamber, washing impeller, washing water outlet；Draining pump include draining pump case, draining pump chamber, Water impeller, draining water outlet；Intake chamber connects respectively between washing pump and draining pump and with washing pump chamber and draining pump chamber Logical, which is provided with water inlet, is equipped with filter device at the first outlet of the intake chamber being connected to washing pump chamber；Electricity Arbor passes through washing impeller and water impeller and them can be driven to rotate；Disintegrating knife is installed, in draining on motor shaft First crashing food residue；At least described draining in the draining water outlet and described washing the two positions of water outlet Water outlet is provided with drain valve.

Although the above-mentioned prior art solves the problems, such as Washing pump of bowl-washing machines to a certain extent, by washing pump and draining pump Setting is structure as a whole, but still remains washing function and drain function separation, and Each performs its own functions, causes waterway structure complicated, Water consumption is big, with water recycle it is not high, in pipeline there is also accumulation residue cause blocking risk, in addition, due also to washing and Draining causes washing pump to occupy short transverse larger in two systems, and then causes the washing capacity of dish-washing machine corresponding The problems such as reducing, influencing detersive efficiency；Meanwhile water pump is equipped with pump case, so that spot and dirty water remain in inside pump case, is not easy clear Reason；It is above-mentioned in the prior art, be equipped in water route can with water flow act drain valve or reversal valve, realize for a water The block on road；Since drain valve or the movement of reversal valve needs can just play the purpose at the mouth of a river in one water route of closing, but due to row The frequent movement of water valve or reversal valve, the case where drain valve or reversal valve damage often occur or botch routines；And in order to Drain valve or reversal valve are set, need to reserve the space of drain valve or reversal valve in accommodating chamber.

Summary of the invention

The present invention is directed to the above-mentioned problems in the prior art, provides a kind of water pump structure of dish-washing machine, passes through radial direction The baffle structure of fixed setting, the flow direction of the water flow for guiding the water impeller to push, the fixed setting of baffle structure, favorably In the stability of baffle structure, the effect of drainage is advantageously ensured that.

To reach above-mentioned technical purpose, the present invention is implemented with the following technical solutions:

A kind of water pump structure of dish-washing machine, comprising:

Play the power actuated pump shaft of transmitting；

The lower end of the pump shaft is set and the water impeller of drainage power is provided；

It is communicated with draining water inlet pipe and drains the water drain cavity of outlet pipe, the water impeller is located in the water drain cavity；

Water flow with the baffle structure of radially fixed setting in the water drain cavity, for guiding the water impeller to push Flow direction.

Further, the water impeller rotates forward, the flow direction that the baffle structure guides the water impeller to push Drain water inlet pipe；

The water impeller reversion, the flow direction draining outlet pipe that the baffle structure guides the water impeller to push.

Further, offered on the water drain cavity with the water inlet that is connected to of draining water inlet pipe and with it is described The water outlet of outlet pipe connection is drained, the baffle structure is between the inlet and outlet.

Further, the inlet and outlet are provided adjacent to.

Further, the baffle structure is fixed in the water drain cavity.

Further, suit is provided with barrier portion on the pump shaft, and the baffle structure includes along the barrier portion Extending radially downward block reinforcement.

Further, the barrier portion is located at the top of the water impeller.

Further, the retaining ring extended downwardly, the retaining ring and the block reinforcement are additionally provided in the lower end surface of the barrier portion Inner end connection, the shield ring sleeve be mounted in the pump shaft outside.

Further, the water drain cavity is located at the lower part of the accommodating chamber of upper opening, and the barrier portion is circumferentially fixed In the accommodating chamber.

Further, it is equipped with the locating slot being axially arranged on the inner wall of the accommodating chamber, is set in the barrier portion There is the positioning bar to match with the locating slot；The locating slot and positioning bar match, so that the baffle Standard arrives Position.

Further, the upper end edge to extend radially outwardly is equipped on the top of the barrier portion, the positioning bar is located at institute State the outside of upper end edge.

Further, multiple limit ribs upwardly extended are equipped in the circumferentially-spaced of the barrier portion, in the accommodating chamber The inner wall of room is equipped with the limiting slot being axially arranged to match with the limit rib, and the limit rib and limiting slot matching share In the fixation barrier portion.

Further, the support to match with the upper end edge of the barrier portion is equipped on the inner wall of the water drain cavity Platform.

Further, the water impeller has the second wheel hub being fixedly connected with the pump shaft and along described second Circumferentially-spaced outwardly extending multiple second blades of wheel hub；Second blade guides diameter of the wash liquid to the water impeller To flowing.

Further, the second blade extending radially outwardly along second wheel hub, second blade have flat Whole upper blade face and lower blade face and on the outside of the upper leaf face downwards and the arcwall face that extends internally, under the arcwall face Side is connect with the lower blade face.

Based on the water pump structure of above-mentioned dish-washing machine, the present invention also provides a kind of dish-washing machine with above-mentioned water pump structure, By the baffle structure of radially fixed setting, the flow direction of the water flow for guiding the water impeller to push, baffle structure is fixed Setting, is conducive to the stability of baffle structure, advantageously ensures that the effect of drainage.

A kind of dish-washing machine, including being equipped with above-mentioned water pump in the liner at the bottom for accommodating the liner to washing articles Structure.

The water pump structure of dish-washing machine provided by the invention is pushed away by the baffle structure of radially fixed setting in water impeller When dynamic water flow flowing, baffle structure block water flow radially drains into water flow in draining water inlet pipe or draining outlet pipe； Forward or reverse by water impeller, the indoor water flow of drainage cavity is pushed forward or reverse, that is, water impact is to gear First drainage face of flow structure or the second drainage face, and water flow is further led into draining water inlet pipe or draining outlet pipe It is interior；Since baffle structure is fixedly installed, is conducive to the stability of baffle structure, advantageously ensures that the effect of drainage, avoid the occurrence of The problem of drainage failure.

After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear Chu.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of one embodiment of the water pump structure of dish-washing machine proposed by the invention；

Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view；

The bottom looked up and remove water drain cavity and the structural schematic diagram after water impeller that Fig. 3 is Fig. 1；

Fig. 4 is B-B direction section view enlarged structure schematic diagram in Fig. 3；

Fig. 5 is rotor part in Fig. 1 and the structural schematic diagram after stator component disassembly；

Fig. 6 is the enlarged structure schematic diagram of rotor part in Fig. 5；

Fig. 7 is the enlarged structure schematic diagram of Fig. 6；

Fig. 8 is the structural schematic diagram of another angle of Fig. 6；

Fig. 9 is the enlarged structure schematic diagram of water impeller；

Figure 10 is the enlarged structure schematic diagram of another angle of the stator component of Fig. 6；

Figure 11 is that the water pump structure in Fig. 1 is installed to the schematic cross-sectional view after dish-washing machine；

Figure 12 is the enlarged structure schematic diagram in Figure 11 at water pump structure；

Figure 13 is the enlarged structure schematic diagram of part-structure in Figure 12；

Figure 14 is the enlarged structure schematic diagram of spray arm in Figure 11；

Figure 15 is the configuration schematic diagram of spray arm.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.

In the description of the present invention, it should be noted that the side of the instructions such as term "inner", "upper", "lower", "left", "right" Position or positional relationship are positional relationship based on the figure, are with the side under product normal operating condition close to user " preceding ", the side far from user are " rear ".Term is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair Limitation of the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and it should not be understood as instruction or dark Show relative importance；Define " first ", the feature of " second " can explicitly or implicitly include one or more be somebody's turn to do Feature.In the description of the present invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

- Figure 15 refering to fig. 1 is one embodiment of the water pump structure of dish-washing machine proposed by the invention, a kind of dish-washing machine Water pump structure 1 bottom of internal cavity of bowl washer 10 is set, water pump structure 1 has included: the power actuated pump shaft 12 of transmitting, is being pumped The lower end suit of axis 12 is fixed with water impeller 13, and water impeller 13 is for providing drainage power；It further include water drain cavity 161, Water drain cavity 161 is connected to draining water inlet pipe 162 and draining outlet pipe 163, and water impeller 13 is located in water drain cavity 161； With the baffle structure 171 of radially fixed setting in water drain cavity 161, baffle structure 171 is for guiding water impeller 13 to push away The flow direction of dynamic water flow.Pass through the baffle structure 171 of radially fixed setting, in the water flow flowing that water impeller 13 pushes, gear The block water flow radially of flow structure 171 drains into water flow in draining water inlet pipe 162 or draining outlet pipe 163；Pass through draining Forward or reverse, to push the water flow in water drain cavity 161 forward or reverse, that is, water impact is to baffle knot for impeller 13 First drainage face of structure 171 or the second drainage face, and water flow is further led into draining water inlet pipe 162 or draining outlet pipe In 163；Since baffle structure 171 is fixedly installed, is conducive to the stability of baffle structure 171, advantageously ensures that the effect of drainage, The problem of avoiding the occurrence of drainage failure.

Be arranged water impeller 13 rotate forward when (rotating forward of the invention is not limited to rotate clockwise or counterclockwise, Jin Jinzuo Relatively rotated for one of reversion to record), water impeller 13 pushes the water flow in water drain cavity 161 to rotate forward, the water flow of rotating forward Part reaches draining water inlet pipe 162, partially impacts on the first drainage face of baffle structure 171, partially from baffle structure 171 It flows through lower end；The part water flow for impacting baffle structure 171 enters draining water inlet pipe 162 under the guidance of baffle structure 171, Also it allows for the wash liquid in water drain cavity 161 and is partially advanced draining water inlet pipe 162, cause wash liquid that cannot continue Entered in water drain cavity 161 by draining water inlet pipe 162；It does not play a role in the drainage when water impeller 13 rotates forward.

When water impeller 13 inverts, (present invention reversion is not limited to rotate clockwise or counterclockwise, as just rotating forward One relatively rotate to record), water impeller 13 push water drain cavity 161 in flow of water reverses, the water flow part of reversion is arrived Up to draining outlet pipe 163, partially it is flowed on the first drainage face for impacting baffle structure 171, partially from the lower end of baffle structure 171 It crosses；The part water flow for impacting baffle structure 171 enters draining outlet pipe 163 under the guidance of baffle structure 171, also just makes It obtains the wash liquid in water drain cavity 161 and is partially advanced draining outlet pipe 163, drain water inlet pipe 162 at this time and continue to wash Liquid is washed to be transported into water drain cavity 161；It does not play a role in the drainage when water impeller 13 inverts.

Offered on water drain cavity 161 with the water inlet that be connected to of draining water inlet pipe 162 and with drain outlet pipe 163 The water outlet of connection；Preferably, for setting baffle structure 171 between inlet and outlet, inlet and outlet are adjacent Setting, and in the fixed setting of baffle structure 171 and water drain cavity 161.In water drain cavity 161, pushed by water impeller 13 Water flow rotated with water impeller 13, setting baffle structure 171 be arranged radially, can be by the water flow block of rotation.

Referring to fig. 4 and shown in Figure 12, water pump structure 1 has vertically arranged pump shaft 12, is fixed on washing for 12 top of pump shaft It washs impeller 11, be fixed on the water impeller 13 of 12 lower part of pump shaft and the driving device 14 for driving pump shaft 12 to rotate, water pump Structure 1 drives washing impeller 11 and water impeller 13 to realize to washing water route and draining water route and provides washing respectively by pump shaft 12 Power and drainage power, washing pump and draining pump are integrated, while being again combined into one washing function and drain function, are made It obtains Dishwasher water passage system and has obtained high optimization, reduce water consumption, prevent accumulation washing water excessive in pipeline, improve The service efficiency of washing water.

When water pump structure 1 rotates forward, (rotating forward of the invention is not limited to rotate clockwise or counterclockwise, as just reversion One relatively rotate to record), driving device 14 drive washing impeller 11 rotate forward, water circuit system have water inlet water route, washing Water route and draining water route, water flow through water inlet water route and reach in liner, wash water route later and carry out through water pump structure 1 and spray arm 2 Circulated sprinkling after the completion of finally washing, will drain the wash liquid in water route discharge liner 10.In washing water route, in liner 10 bottoms are equipped with water pump structure 1, and water pump setting low surrounding among 10 bottom middle position of liner, 10 bottom of liner is high, liner In wash liquid to gathering at water pump structure 1, wash liquid is ejected into the spray chamber 21 of spray arm 2 by washing impeller 11, Later ejecting liquid by the spray apertures 22 opened up on spray arm 2 upwards spray and rotate, for wash in liner 10 wait wash Article.

Wash liquid is sent into spray arm 2, spray arm 2 by wash liquid spray to liner 10 on washing articles, Realize the cleaning to tableware；When water pump structure 1 inverts, (present invention reversion is not limited to rotate clockwise or counterclockwise, only Relatively rotated as one of rotating forward to record), driving device 14 drives water impeller 13 to invert, by liner 10 to tableware Dirty water after cleaning is discharged by draining outlet pipe 163, washing pump and draining pump is integrated, while again will washing Function and drain function are combined into one, so that Dishwasher water passage system has obtained high optimization, are reduced water consumption, are prevented pipe Excessive accumulation wash liquid, improves the service efficiency of wash liquid in road；Since washing pump and draining pump are combined into one, make Water pump structure 1 of the present invention is obtained in dish-washing machine, shared space is minimum, so that the feelings that dish-washing machine is constant in structure size Under condition, washing capacity is expanded, improves detersive efficiency.

Referring to the setting shown in Fig. 3, Fig. 4 and Fig. 6, for baffle structure 171, it is preferred that be set with setting on pump shaft 12 There is barrier portion 17, baffle structure 171 includes the block reinforcement 1711 extending radially downward along the lower end surface of barrier portion 17, in order to increase gear The block and drainage effect of muscle are additionally provided with the retaining ring 1712 extended downwardly, retaining ring 1712 and block reinforcement in the lower end surface of barrier portion 17 1711 inner end connection, retaining ring 1712 are sleeved on the outside of pump shaft 12, are preferably provided with height phase of the retaining ring 1712 with block reinforcement 1711 Together.Barrier portion 17 is located at the top of water impeller 13;Barrier portion 17 is to be rotatably arranged on cylindric on pump shaft 12, gear Flow structure 171 also is located at the top of water impeller 13, and due to the setting of barrier portion 17, water impeller 13 is pushed away in water drain cavity 161 Dynamic water flow height is no more than barrier portion 17, thus baffle structure 171 is for ending on 171 height and position of baffle structure Water flow.By be arranged barrier portion 17, first is that be conducive to the fixing-stable of baffle structure 171, securely, second is that advantageously forming draining Chamber 161, and be conducive to that the water flow that water impeller 13 pushes is limited to 17 lower end surface of barrier portion hereinafter, having in water drain cavity 16 Conducive to the energy for the water flow for guaranteeing driving for discharging；Third is that being conducive to water impeller 13 and being fixed on pump shaft 12 The rotor part 141 of driving device 14 is isolated, and water impeller 13 is avoided to drive influence of the water flow for rotor 141.

For ginseng by shown in Fig. 2, Fig. 7 and Figure 10, water drain cavity 161 is located at the lower part of the accommodating chamber 16 of upper opening, barrier portion 17 circumferentially fixed are located in accommodating chamber 16.Specifically, being equipped with multiple limits upwardly extended in the circumferentially-spaced of barrier portion 17 Position muscle 172, is equipped with the limiting slot 168 being axially arranged to match with limit rib 172, limit rib on the inner wall of accommodating chamber 16 172 and limiting slot 168 match the moving in rotation for block barrier portion 17 so that barrier portion 17 is fixed on accommodating chamber 16 It is interior.

After guaranteeing that barrier portion 17 is assembled to accommodating chamber 16, baffle structure 171 is located at the water inlet of draining water inlet pipe 162 Between mouth and the water outlet of draining outlet pipe 163；The inner wall of accommodating chamber 16 is equipped with the locating slot 169 that is axially arranged, every Stopper 17 is equipped with the positioning bar 173 to match with locating slot 169；Locating slot 169 and positioning bar 173 match, and guarantee baffle Structure 171 is assembled in place.

The upper end edge 174 to extend radially outwardly is equipped on the top of barrier portion 17, positioning bar 173 is located at upper end edge 174 Outside；The supporting table to match with upper end edge 174 is equipped on the inner wall of water drain cavity 16, supporting table supports in the up-down direction Barrier portion 17.

Shown in Figure 9, water impeller 13 has the second wheel hub 131 being fixedly connected with pump shaft 12 and along the second wheel Circumferentially-spaced outwardly extending multiple second blades 132 of hub 131；Second blade 132 guides wash liquid to water impeller 13 Radial Flow, due to the drainage of 16 inner wall of accommodating chamber, so that being pushed the water flow of rotation in accommodating chamber 16 by the second blade 132 With the trend moved up along 16 inner wall of accommodating chamber.Be preferably provided with, the second blade 132 along the second wheel hub 131 it is radial to Outer extension, the second blade 132 are downward simultaneously with smooth upper blade face 1321 and lower blade face 1322 and along upper 1321 outside of blade face The arcwall face 1323 to extend internally, the downside of arcwall face 1323 are connect with lower blade face 1322.The diameter and baffle of second wheel hub 131 The diameter of the retaining ring 1712 of structure 171 matches, and guarantees block and guidance for water flow.

Ginseng such as remains shown in Fig. 4 and Fig. 6 residue in accommodating chamber 16, is cleared up, be preferably provided with water pump knot Structure 1 includes the rotor part 50 and stator component 60 detachably assembled, and rotor part 50 has had the power actuated pump shaft of transmitting 12 and suit be fixed on 12 top of pump shaft and wash the washing impeller 11 of power for providing, be fixed on 12 lower part of pump shaft and be used for The water impeller 13 of drainage power is provided, specifically, on pump shaft 12 from the top down successively are as follows: washing impeller 11, Supporting cover 15 Inside support ring 157, rotor 141, barrier portion 17, water impeller 13.The stator that there is stator component driving rotor 141 to rotate 142 and the upper opening for accommodating rotor part accommodating chamber 16, stator 142 is located at the outside of accommodating chamber 16.Rotor Component is removably located in accommodating chamber 16, and setting rotor part can be dismantled, and is conducive to clear up accommodating chamber 16 or turn Spot residue on subassembly, and be conducive to the maintenance etc. for rotor part.And pump case component is omitted, avoids washing Water has the problems such as residue in pump case, is conducive to water pump structure 1 on dish-washing machine more preferably space layout, advantageously reduces and account for Space, and be conducive to the shortening in water route and succinct.

Pump shaft 12 and rotor 141 on rotor part 50 are in rotation status at work；Also have in rotor part 50 The Supporting cover 15 being sleeved on pump shaft 12, Supporting cover 15 is rotatable to be located on pump shaft 12, that is, when the fixation of Supporting cover 15, pump Axis 12 is rotated relative to Supporting cover 15.It is equipped with dismountable fixing assembling structure between Supporting cover 15 and accommodating chamber 16, comes real The detachable assembly of existing rotor part.

Specifically, referring to shown in Fig. 7 and Figure 10, fixing assembling structure be the limited block 156 being provided in Supporting cover 15, with And the limit sliding chutes 166 in accommodating chamber 16 are provided with, limit sliding chutes 166 match with limited block 156；Limited block 156 is placed To the starting point of limit sliding chutes 166, and through revotating card in limit sliding chutes 166, realize that the assembly for Supporting cover 15 is solid It is fixed.When needing to dismantle rotor part, it is only necessary to rotate Supporting cover 15, so that limited block 156 is slided into limit sliding chutes 166 Rotor part is picked up in starting point upwards later, is achieved that the disassembly of rotor part.The disassembling operations of rotor part are simply square Just, be conducive to improve the convenience of operation.

In other embodiments, also can be set fixing assembling structure be the limited block being provided in accommodating chamber 16, with And it is provided with the limit sliding chutes in Supporting cover 15.

Shown in Figure 7, Supporting cover 15 has the inside support ring 157 for being sleeved on 141 top of rotor and is located at inner support The outer support ring 158 of the outer upper side of ring 157, is equipped at intervals with multiple support frames between outer support ring 158 and inside support ring 157 159.It turns edge, is turned edge as the outside of rotor 141 what the outer edge setting of the inside support ring 157 extended downwardly.

The above-mentioned limited block 156 of multiple radially outwardly projectings is equipped on inside support ring 157, in the upper spacious of accommodating chamber 16 The notch 167 to match with inside support ring 157 is offered at mouthful, inside support ring 157 is located in accommodating chamber 16；Above-mentioned limit Sliding slot 166 is arranged in the vertical face of notch 167.Inside support ring 157 is located in accommodating chamber 16 in this way, and makes inside support ring 157 upper surface is concordant with the upper surface of accommodating chamber 16, be conducive to rotor part assembly after stable structure, securely.Outside The circumferentially-spaced of support ring 158 is equipped with multiple convexes 1581 to extend radially outwardly, for outer support ring 158 at 10 bottom of liner The limit in portion is fixed.

Also there is rotor part 50 suit to be fixed on 12 top of pump shaft for providing the washing impeller 11 of washing power, fixing In 12 lower part of pump shaft for providing the water impeller 13 of drainage power, on pump shaft 12 from the top down successively are as follows: washing impeller 11, Inside support ring 157, rotor 141, barrier portion 17, the water impeller 13 of Supporting cover 15, outer support ring 158 are sleeved on washing impeller 11 Outside.Water pump structure 1 drives washing impeller 11 and water impeller 13 to realize to washing water route and draining water route by pump shaft 12 Washing power and drainage power are provided respectively, washing pump and draining pump are integrated, while again by washing function and draining function It can be combined into one, so that Dishwasher water passage system has obtained high optimization, reduce water consumption, prevent product excessive in pipeline Tired washing water, improves the service efficiency of washing water.

Shown in Figure 8, outer support ring 158 has the outer support ring ontology 1580 connecting with support frame 159 and setting Cooperation support ring 1582 in 1580 inside of outer support ring ontology, cooperation support ring 1582 are located at washing impeller 11 and outer support ring Between 158.The through-hole 151 for washing the stretching of impeller 11 is offered in Supporting cover 15, through-hole 151 is provided with cooperation support ring On 1582；Cooperation support ring 1582 can be used for supporting spray arm 2.

Referring to the dish-washing machine for shown in Figure 11-Figure 15, illustrating to be provided with above-mentioned water pump structure 1, opened up in the bottom surface of liner 10 Have for upward convex holding tank, stator component is fixed in holding tank；Rotor part is packed into stator component from liner 10 In accommodating chamber 16.Spray arm 2 in liner 10, spray arm 2 is interior to have spray chamber 21, at least partly washs 11, impeller In in spray chamber 21；The top for being preferably provided with washing impeller 11 is located in spray chamber room 21.Pass through setting washing impeller 11 Top is located in spray chamber room 21, is conducive to shorten and shortens water pump 1 to the water route length between spray arm 2, advantageously reduces Height of the spray arm 2 in liner, is conducive to the space layout of dish-washing machine；And it avoids and it is set from water pump 1 to spray arm 2 Between connecting tube, save space while, also save connection, sealing of connecting tube etc. operation, be conducive to raising manufacture efficiency.

Water flows through water inlet water route and reaches in liner, washs water route later through water pump 1 and spray arm 2 and carries out circulated sprinkling, most After the completion of washing afterwards, the wash liquid in water route discharge liner 10 will be drained.In washing water route, water is equipped in 10 bottom of liner The wash liquid in 10 bottom middle position of liner, the low surrounding height in 10 bottom of liner centre, liner is arranged to water in pump 1, water pump It pumps and gathers at 1, wash liquid is ejected into the spray chamber 21 of spray arm 2 by washing impeller 11, and ejecting liquid is by spray arm 2 later On the spray apertures 22 that open up spray and rotate upwards, for wash in liner 10 to washing articles.

Water inlet 23 is offered on the lower end surface of spray arm 2, washing impeller 11 protrudes into spray chamber by water inlet 23 In 21.Spray arm 2 is fastened and is formed by upper housing 28 and the sealing of lower case 29, the lower end surface of lower case i.e. spray arm 2 Lower end surface, that is, spray arm 2 lower end surface lower than washing impeller 11 upper surface；It is directly opened in the lower end surface of spray arm 2 If water inlet 23, the water entering section that setting extends downwardly is saved, advantageously reduces the height of spray arm 2, and advantageously reduce system Cause this；Wash liquid has just come into spray chamber 21, has advantageously reduced when not leaving washing impeller 11 simultaneously The energy loss of injection water, and the washing impeller 11 being located in spray chamber 21, for water flow in spray chamber 21 Flowing has biggish impetus, advantageously ensures that the flow intensity sprayed from spray apertures 22, improves washing cleannes.

Spray arm 2 and water pump 1 are coaxially disposed, and spray arm 2 is in suspended state in spray.It is being sprayed by spray arm 2 When be in suspended state so that spray arm 2 is not contacted in spray between other component, reduce when spray arm 2 rotates Friction avoids abrasion when spray arm 2 rotates, is conducive to the promotion of the speed, efficiency of 2 rotary spray of spray arm；The same time The setting for having saved the rotatable part for spray arm 2 advantageously reduces the height of spray arm 2, shortens and washs water route, in reduction The occupancy in gallbladder space reduces installation, manufacturing cost.And be coaxially disposed by spray arm 2 and water pump 1, it is sprayed upwards through water pump 1 Water flow supports spray arm 2 to be in the state to suspend, and spray arm is rotated.

Spray arm 2 and water pump 1 do not have fixing assembling relationship, and spray arm 2 and other component do not have fixing assembling relationship yet, spray To exempt from assembling structure between leaching arm 2 and water pump 1, or perhaps spray arm 2 is to exempt from assembling structure；Spray arm 2 can reach suspension rotation Turn spray, the matching relationship between spray arm 2 and water pump 1 is related, while also related with the structure of spray arm 2 itself.

Referring to fig. 4 and shown in Figure 13, the through-hole that impeller 11 opens up in the cooperation support ring 1582 in Supporting cover 15 is washed It 151 and stretches out upwards, is equipped with the first auxiliary section 152 for matching with water inlet 23 in cooperation support ring 1582.Specifically, First auxiliary section 152 has the first sagittal plane 1521 matched with 2 lower end surface of spray arm in the outside of water inlet 23 and along the The first axis face 1522 that the inside of one sagittal plane 1521 upwardly extends.Spray arm 2 is placed directly into Supporting cover 15, so that washing It washs impeller 11 to be located in spray chamber 21, while being contacted at water inlet 23 with the first auxiliary section 152, so that Supporting cover 15 supports The gravity of spray arm 2；Without assembly fixed relationship between spray arm 2 and other component.When washing water route work, spray arm 2 Rotary spray state in suspension, so that spray arm 2 is not contacted in spray between other component, that is, spray arm 2 The water flow support sprayed upwards through water pump, spray arm 2 move slightly upwards, are in suspended state away from Supporting cover 15；Spray The rotary spray state that leaching arm 2 suspends reduces friction when spray arm 2 rotates, and avoids abrasion when spray arm 2 rotates, has Conducive to the promotion of the speed, efficiency of 2 rotary spray of spray arm；The setting of the rotatable part for spray arm 2 is saved simultaneously, Advantageously reduce the height of spray arm 2, shorten washing water route, reduce the occupancy to 10 space of liner, reduce installation, manufacture at This.

There are also downwardly convex gears for 2 lower end surface of spray arm along 24, and gear is coaxially disposed along 24 with water inlet 23, and gear is located at along 24 The outside of water inlet 23 is equipped with the second auxiliary section 153 for matching with gear along 24 in cooperation support ring 1582, exists in this way Wash water route work when, when spray arm 2 is moved up in suspended state, spray arm 2 move up it is highly preferred be lower than or Equal to the height in first axis face 1522, avoids Supporting cover 15 from being in water inlet 23 and be radially superimposed with certain, avoided Supporting cover 15 and water inlet 23, which are in, radially gap, guarantees the water flow that washed impeller 11 raises, fully enters spray chamber In room 21.

When spray arm 2 does not work, support that spray arm 2 is given by the cooperation support ring 1582 of gravity and Supporting cover 15 Power, the specially gravity of spray arm 2 are on the first sagittal plane 1521 of the first auxiliary section 152.When spray arm 2 works, It is ejected into spray chamber 21 by the wash liquid that water pump 1 raises, gives spray arm 2 and move up, realize the power to suspend, spray There is arm 2 itself the interior wash liquid flowed of gravity, spray arm 2 also to have gravity；In order to realize the suspension of spray arm 2, wash Liquid gives the upward power of the spray arm 2 and is greater than or equal to the downward gravity that spray arm 2 is subject to.Spray arm 2 start to When upper mobile, wash liquid gives the upward power of the spray arm 2 greater than the downward gravity that spray arm 2 is subject to certainly；Certainly The displacement that spray arm 2 is begun to move up is smaller, when relying primarily on water pump 1 and starting to work, power that the water flow raised is sprayed upwards Spray arm 2 can be jacked up upwards；Preferably, during spray later, the wash liquid that water pump 1 raises, which is given, to be sprayed The upward power of arm 2 is equal to the downward gravity that spray arm 2 is subject to, and ensure that spray arm 2 is suspended in metastable position.

The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.

Claims (10)

1. a kind of water pump structure of dish-washing machine characterized by comprising

Play the power actuated pump shaft of transmitting；

The lower end of the pump shaft is set and the water impeller of drainage power is provided；

It is communicated with draining water inlet pipe and drains the water drain cavity of outlet pipe, the water impeller is located in the water drain cavity；

Water flow with the baffle structure of radially fixed setting in the water drain cavity, for guiding the water impeller to push Flow direction.

2. water pump structure according to claim 1, which is characterized in that the water impeller rotates forward, and the baffle structure is drawn Lead the flow direction draining water inlet pipe that the water impeller pushes；

The water impeller reversion, the flow direction draining outlet pipe that the baffle structure guides the water impeller to push.

3. water pump structure according to claim 1, which is characterized in that offered on the water drain cavity with it is described drain into The water inlet of water pipe connection and the water outlet being connected to the draining outlet pipe, the baffle structure are located at the water inlet Between water outlet.

4. water pump structure according to any one of claims 1 to 3, which is characterized in that be set with and be provided on the pump shaft Barrier portion, the baffle structure include the block reinforcement extending radially downward along the lower end surface of the barrier portion；The barrier portion is located at The top of the water impeller.

5. water pump structure according to claim 4, which is characterized in that be additionally provided in the lower end surface of the barrier portion to downward The retaining ring stretched, the retaining ring are connect with the inner end of the block reinforcement, and the shield ring sleeve is mounted in the outside of the pump shaft.

6. water pump structure according to claim 4, which is characterized in that the water drain cavity is located at the accommodating chamber of upper opening Lower part, the barrier portion it is circumferentially fixed be located at the accommodating chamber in.

7. water pump structure according to claim 4, which is characterized in that be equipped with axial set on the inner wall of the accommodating chamber The locating slot set is equipped with the positioning bar to match with the locating slot in the barrier portion；The locating slot and positioning bar phase Cooperation, so that the baffle Standard is in place.

8. water pump structure according to claim 4, which is characterized in that the barrier portion it is circumferentially-spaced be equipped with it is multiple to The limit rib of upper extension is equipped with the limit being axially arranged to match with the limit rib on the inner wall of the accommodating chamber Slot, the limit rib and limiting slot are matched for fixing the barrier portion.

9. water pump structure according to any one of claims 1 to 3, which is characterized in that the water impeller have with it is described The second wheel hub that pump shaft is fixedly connected and along circumferentially-spaced outwardly extending multiple second blades of second wheel hub；It is described Second blade guides Radial Flow of the wash liquid to the water impeller.

10. a kind of dish-washing machine, including for accommodating the liner to washing articles, which is characterized in that be equipped in the liner at the bottom The described in any item water pump structures of claim 1 to 9.