CN109528125A - A kind of dish-washing machine with suspension spray arm - Google Patents

Abstract

The present invention provides a kind of dish-washing machines with suspension spray arm, comprising: for accommodating the liner to washing articles；The water pump of the liner at the bottom is set, and the water pump, which is equipped with, provides the washing impeller of washing power；Spray arm in the liner is set, and the spray arm and the water pump are coaxially disposed, and the spray arm is in suspended state in spray.It is in suspended state in spray by spray arm, so that spray arm is not contacted in spray between other component, friction when spray arm rotation is reduced, avoids abrasion when spray arm rotation, be conducive to the promotion of the speed, efficiency of spray arm rotary spray；The setting for saving the rotatable part for spray arm simultaneously advantageously reduces the height of spray arm, shortens washing water route, reduces the occupancy in liner space, reduces installation, manufacturing cost.And be coaxially disposed by spray arm and water pump, the water flow support spray arm sprayed upwards through water pump is in the state to suspend, and spray arm is rotated.

Description

A kind of dish-washing machine with suspension spray arm

Technical field

The invention belongs to dish-washing machine technical fields, and in particular to a kind of dish-washing machine with suspension spray arm.

Background technique

With the improvement of living standards, people are higher and higher to quality of the life requirement, thus quality, property to daily necessity 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 convenient life Articles are also come into people's lives.On dish-washing machine, spray thrower is one of dish-washing machine key components and parts, it directly influences meal Can tool wash clean.

Currently, the water flow jet component of dish washer interior, mainly based on gushing arm structure, gushing arm is the weight of dish washer interior One of component is wanted, drives its directional-rotation injection water to scrub tableware by water flow.Spray wall be rotatably mounted on bracket or In connecting tube of intaking, that is, spray wall can be pivoted, and spray being rotatably connected between wall and bracket or water inlet connecting tube, often It wears；And often there is tiny swill to enter between rotatable part, it causes rotating friction force larger, seriously affects The rotation speed for spraying wall influences to clean effect.

Such as application No. is the Chinese patents of CN201320297385.3 to disclose a kind of gushing arm device for dish-washing machine And the dish-washing machine with the gushing arm component, the gushing arm device for dish-washing machine, comprising: water inlet pipe；Gushing arm component, it is described Gushing arm component is rotatably connected with the water inlet pipe, wherein the gushing arm component includes gushing arm water pipe and gushing arm, gushing arm water pipe First end protrude into water inlet pipe and the second end of gushing arm water pipe is connected outside water inlet pipe with gushing arm；Namely water inlet pipe is equivalent to axis Set, and gushing arm water pipe is equivalent to shaft, so that the gushing arm component is rotatable relative to water inlet pipe.

Summary of the invention

The present invention is directed to the above-mentioned problems in the prior art, provides a kind of dish-washing machine with suspension spray arm, leads to The spray arm of setting suspension spray is crossed, spray arm is in suspended state in spray, reduces friction when spray arm rotation.

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

A kind of dish-washing machine with suspension spray arm, comprising:

For accommodating the liner to washing articles；

The water pump of the liner at the bottom is set, and the water pump, which is equipped with, provides the washing impeller of washing power；

Spray arm in the liner is set, and the spray arm and the water pump are coaxially disposed, and the spray arm is in spray In suspended state.

Further, there is spray chamber, the washing impeller-driven wash liquid is injected into upwards in the spray arm Enter the spray chamber, wash liquid gives the upward power of the spray arm and is greater than or equal to the downward weight that spray arm is subject to Power.

Further, it is described spray chamber have be located at the spray arm in the middle part of intake antrum and with the intake antrum The spray runner equipped with spray apertures of connection, the roof of the intake antrum are equipped with extending downwardly and revolve for the spray arm The positioning region turned.

Further, the positioning region and washing impeller coaxial arrangement, the positioning region are located at the upper of the washing impeller Side.

Further, the positioning region is basin shape, and the washing impeller has the wheel being fixed on the pump shaft of the water pump The radial dimension of hub and multiple first blades that the wheel hub axial direction is arranged in, the wheel hub is greater than the positioning region bottom Radial dimension.

Further, the lower end surface of the positioning region has bottom surface and the arcuate flanks with bottom surface smooth transition.

Further, the top of the wheel hub has the flared section extended upwardly and outwardly.

Further, the upper surface of first blade is the arc extended upward and radially outward, first blade Upper surface on the inside of connect with the upper surface of the wheel hub.

Further, there is spray chamber, the top of the washing impeller is located at the spray chamber in the spray arm It is interior.

Further, the top of the wheel hub has the flared section extended upwardly and outwardly.

Further, first blade has wash liquid to washing impeller axis direction and along washing impeller shaft The first Drainage Section that line direction boots up, the second accelerating sections for accelerating wash liquid upwards along washing impeller axis direction, Second accelerating sections is vertically arranged.

Further, the arc-shaped helicoidal structure of the first diversion section.

Further, first blade, which also has, draws wash liquid to the third that the radial direction of washing impeller guides Section is flowed, the third Drainage Section is located in the spray chamber room.

Further, it is equipped between the intake antrum and spray runner to wash liquid in the indoor flowing of spray chamber, Play the flow-guiding structure of drainage and buffer function.

Further, be provided with opening between the flow-guiding structure and spray arm inner wall, wash liquid from opening from into Water cavity is transported to spray runner.

Further, the flow-guiding structure includes after so that wash liquid is entered spray chamber, along at least one section of circular path First diversion section of movement.

Further, the flow-guiding structure includes the second water conservancy diversion for entering spray runner from opening guidance wash liquid Section.

Dish-washing machine provided by the invention is in suspended state in spray by the spray arm, so that spray arm is spraying It is not contacted between other component when leaching, reduces friction when spray arm rotation, avoided abrasion when spray arm rotation, have Conducive to the promotion of the speed, efficiency of spray arm rotary spray；The setting for saving the rotatable part for spray arm simultaneously, has Conducive to the height for reducing spray arm, shortens washing water route, reduce the occupancy in liner space, reduce installation, manufacturing cost.And pass through The spray arm and the water pump are coaxially disposed, and the water flow support spray arm sprayed upwards through water pump is in the state to suspend, and So that spray arm rotates.

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 dish-washing machine with suspension spray arm proposed by the invention；

Fig. 2 is the schematic cross-sectional view of Fig. 1；

Fig. 3 is the part enlarged structure schematic diagram in Fig. 2；

Fig. 4 is the part enlarged structure schematic diagram in Fig. 3；

Fig. 5 is the part enlarged structure schematic diagram in Fig. 4；

Fig. 6 is the enlarged structure schematic diagram for washing impeller；

Fig. 7 is the structural schematic diagram of spray arm；

Fig. 8 is the configuration schematic diagram of Fig. 7；

Fig. 9 is the structural schematic diagram of the lower case in Fig. 8；

Figure 10 is the enlarged structure schematic diagram of water pump；

Figure 11 is to look up in Figure 10 and the bottom for removing water drain cavity and the structural schematic diagram after water impeller；

Figure 12 be in Figure 11 A-A to schematic cross-sectional view；

Figure 13 is partial structure diagram in Figure 12.

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 13 refering to fig. 1 is one embodiment of the dish-washing machine with suspension spray arm proposed by the invention, a kind of Dish-washing machine with suspension spray arm, comprising: using includes for accommodating the liner 10 to washing articles, being arranged in 10 bottom of liner Water pump 1 and the spray arm 2 that is arranged in liner 10, water pump 1, which is equipped with, provides the washing impeller 11 of washing power, spray Arm 2 and water pump 1 are coaxially disposed, and spray arm 2 is in suspended state in spray.Suspension is in spray by spray arm 2 State reduces friction when spray arm 2 rotates, avoids spray so that spray arm 2 is not contacted in spray between other component Abrasion when arm 2 rotates is drenched, the promotion of the speed, efficiency of 2 rotary spray of spray arm is conducive to；It saves simultaneously for spray arm The setting of 2 rotatable part advantageously reduces the height of spray arm 2, shortens washing water route, reduces the occupancy in liner space, Reduce installation, manufacturing cost.And it is coaxially disposed by spray arm 2 and water pump 1, the water flow support spray sprayed upwards through water pump 1 Arm 2 is 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.

Water pump 1, which is equipped with, provides the washing impeller 11 of washing power, and the top of washing impeller 11 is located in spray chamber room 21. It is located in spray chamber room 21 by the top of setting washing impeller 11, is conducive to shorten and shortens water pump 1 between spray arm 2 Water route length advantageously reduces height of the spray arm 2 in liner, is conducive to the space layout of dish-washing machine；And it avoids and sets It sets from water pump 1 to the connecting tube spray arm 2, while saving space, also saves the behaviour such as connection, sealing of connecting tube Make, is conducive to improve manufacture efficiency.

When spray arm 2 does not work, support force that spray arm 2 is given by gravity and Supporting cover 15, specially spray arm 2 Gravity is on the first sagittal plane 1521 of the first auxiliary section 152.When spray arm 2 works, the cleaning solution that is raised by water pump 1 Body is ejected into spray chamber 21, gives the power that spray arm 2 moves up, realizes suspension, and spray arm 2 itself has gravity, spray The wash liquid flowed in leaching arm 2 also has gravity；In order to realize the suspension of spray arm 2, wash liquid gives the spray arm 2 Upward power is greater than or equal to the downward gravity that spray arm 2 is subject to.When spray arm 2 is begun to move up, affirmative cleaning solution Body gives the upward power of the spray arm 2 and is greater than the downward gravity that spray arm 2 is subject to；Certain spray arm 2 is begun to move up Displacement it is smaller, when relying primarily on water pump 1 and starting to work, power that the water flow raised is sprayed upwards can be upward by spray arm 2 It jacks up；Preferably, during spray later, the wash liquid that water pump 1 raises gives the upward power of spray arm 2 and is equal to spray The downward gravity that arm 2 is subject to ensure that spray arm 2 is suspended in metastable position.

Shown in Figure 8, spray arm 2 has upper housing 28 and lower case 29；And it is detained by upper housing 28 and lower case 29 Close the spray chamber 21 formed, upper housing 28 and lower case 29 smoothly transit connection, described upper and lower to can be understood as spray arm 1 When horizontal positioned, above and below vertical direction

Referring to shown in Fig. 7-9, offering the spray apertures 22 being obliquely installed on the upper surface of spray arm 2, spray apertures 22 and pass through The plane of the axis of spray arm 2 has certain angle, and the spray apertures 22 being obliquely installed give spray arm 2 in injection water Reversed power pushes spray arm 2 to rotate.In order to realize that spray arm 2 can rotate about the axis thereof, spray chamber 21, which has, is located at spray The intake antrum 211 at 2 middle part of arm, the axis of intake antrum 211 are overlapped with the axis of spray arm 2；Intake antrum 211 roof be equipped with to The positioning region 213 of lower extension, positioning region 213 are used for the positioning that spray arm 2 rotates, rotate about the axis thereof for realizing spray arm 2. Positioning region 213 and washing impeller 11 are coaxially disposed, and positioning region 213 is located at the top of washing impeller 11.

Multiple first blades 112 shown in Figure 6, that washing impeller 11 has wheel hub 111 and is arranged on wheel hub 111, Wheel hub 111 is fixed on pump shaft 12, and when washing the rotation of impeller 11, the first blade 112 plays the role of raising water flow, that is, The water flow raised is all located at the outside of wheel hub 111 certainly, that is, the water flow that washing impeller 11 raises is hollow circular ring shape, and And the top of wheel hub 111 has the flared section that extends upwardly and outwardly, the top of the first blade 112 have by wash liquid to The third Drainage Section 1123 of the radial direction guidance of impeller 11 is washed, thus washs the water for the hollow circular ring shape that impeller 11 raises Flow when leaving washing impeller 11 with upwards and the trend that is displaced outwardly, that is, wheel hub 111 surface almost without water Stream, but upwards and be displaced outwardly water flow after the roof for striking intake antrum 211, be certain to so that water flow disperse；Thus it is arranged Positioning region 213 guides for leaving the water flow after washing impeller 11, water flow is entered and flows to spray apertures 22, has avoided water Stream is in the pushing of positioning region 213, formation flow-disturbing；And make the uniform force in the circumferential of positioning region 213, positioning region can be surrounded now 213 rotation.

Be preferably provided with, positioning region 213 is basin shape, the lower end surface of positioning region 213 have bottom surface 2131 and with bottom surface 2131 The arcuate flanks 2132 of smooth transition.The radial dimension of wheel hub 111 is greater than the radial dimension of 213 bottom 2131 of positioning region, also It is that the water flow that ensure that washing impeller 11 raises will not reach at 213 bottom 2131 of positioning region, arcuate flanks 2132 were played to week Effect to guidance water flow.

Shown in Figure 9, spray chamber 21 further includes the spray runner 212 being connected to intake antrum 211, and spray apertures 22 are arranged Spray runner 212 on.It is equipped between intake antrum 211 and spray runner 212 to wash liquid in spray chamber 21 Flowing plays the flow-guiding structure 214 of drainage and buffer function, the drawing in flow-guiding structure 214 after wash liquid enters intake antrum 211 Lead lower enter on spray runner 212.Wherein, the flow-guiding structure 6 is configured with wash liquid with along at least one section of circular path, It is delivered to spray runner 212 from the intake antrum 211 of spray chamber 21, circular motion reduces wash liquid and enters spray chamber 21 After interior, impact to 2 inner wall of spray arm also avoids the pressure abruptly increase phenomenon in spray chamber 21.Flow-guiding structure 214 and spray 1 inner wall of arm is integrally formed, and is extended into spray chamber 21, and basin face of the wash liquid in spray chamber 21 is reduced Product is avoided too fast inflow bring and collided, produced centainly to the flow direction of wash liquid by the guidance of flow-guiding structure 214 Guiding function.

Be provided with opening 2143 between 2 inner wall of flow-guiding structure 214 and spray arm, wash liquid from opening 2143 from into Water cavity 211 is transported to spray runner 212.After wash liquid enters intake antrum 211 of spray chamber 21, by flow-guiding structure 214 guide, and are transported to spray runner 212 from intake antrum 211 from opening 2143.

Flow-guiding structure 214 further includes making wash liquid from after entering intake antrum 211, is moved along at least one section of circular path First diversion section 2141；Wash liquid is guided from opening 2143 to the second diversion section 2142 of spray runner 212.It is preferred that setting It sets, the first diversion section 2141 is the arcuate structure being extended from 2 inner wall of spray arm into intake antrum 211, and arcuate structure is set The flowing for having cooperated wash liquid in spray chamber 21 is set to play very while reducing the resistance to wash liquid flowing Good guiding function.First diversion section 2,141 at least two is relatively arranged on the inner wall of spray arm 1, wash liquid can be made along water conservancy diversion The arcuate structure of structure 214 forms at least one section of circular path.Second diversion section 2142 is connect with the first diversion section 2141, is opened certainly Extend at mouth 2143 to the distal end of spray runner 212.

Specifically, intake antrum 211 of first diversion section 2141 in spray arm 2, in not closed round or arc-shaped set Set, at least two sections be set to spray chamber 2 in, wash liquid from water inlet 23 enter spray chamber 2 after, due to its impulse force compared with Greatly, the splash everywhere in spray chamber 2, the first diversion section 2141 play the joint face for reducing intake antrum 211 and spraying runner 212 Product, therefore, most of wash liquid are intercepted in intake antrum 211 by the first diversion section 2141, and edge at least one section of circular path, It is moved at the first diversion section 2141, can clockwise or counterclockwise, the present embodiment is not further to this to be limited, due to first Diversion section 2141 is arranged in arc-shaped, can not be by being open 2143, when wash liquid is the when wash liquid be in high flow velocities Under the action of one diversion section 2141, when flowing velocity reduces, it can be flowed at the second diversion section 2142 from opening 2143.

Wash liquid is in the basin that the second diversion section 2142 is formed, from the second diversion section 2142 close to 211 side of intake antrum It to far from 211 side of intake antrum, is gradually increased, wash liquid can be made to accelerate to become the structure of linear motion from circular motion, Allow wash liquid to reach spray operating position faster, ensure that the normal use of spray arm 2.

Specifically, when wash liquid is flow at the second diversion section 2142, second diversion section 2142, which passes through, to be gradually increased Basin channel obtains higher flowing velocity, flow to spray so that wash liquid is accelerated when flowing through the second diversion section 2142 At the spray apertures 22 being arranged on arm 2, spray operation is realized；Second diversion section 2142 is flowed with wash liquid, close to intake antrum 211 One be laterally away from 211 side of intake antrum gradual change setting, can by by the second diversion section 2142 be arranged camber or inclination come It realizes.

Water circuit system has water inlet water route, washing water route and draining water route, and water flows through water inlet water route and reaches in liner, later It washs water route and carries out circulated sprinkling through water pump 1 and spray arm 2, it, will be in draining water route discharge liner 10 after the completion of finally washing Wash liquid.In washing water route, it is equipped with water pump 1 in 10 bottom of liner, water pump is arranged in 10 bottom middle position of liner, liner Low surrounding is high among 10 bottoms, and to gathering at water pump 1, wash liquid is ejected into the wash liquid in liner by washing impeller 11 The spray chamber 21 of arm 2 is drenched, the spray apertures 22 opened up on spray arm 2 are sprayed upwards and rotated by ejecting liquid later, for washing Wash in liner 10 to washing articles.

Shown in Figure 4, water pump 1 has vertically arranged pump shaft 12, the washing impeller 11 that is fixed on 12 top of pump shaft, solid It is scheduled 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 1 passes through pump shaft 12 It drives washing impeller 11 and water impeller 13 to realize to washing water route and draining water route and washing power and drainage power is provided respectively, Washing pump and draining pump are integrated, while being again combined into one washing function and drain function, so that Dishwasher water passage system System has obtained high optimization, reduces water consumption, prevents accumulation washing water excessive in pipeline, improve the use of washing water Efficiency.

Driving device 14 rotates forward, and washing impeller 11 provides washing power to washing water route；Driving device 14 inverts, and drains leaf Wheel 13 provides drainage power to draining water route.When water pump 1 rotates forward, (rotating forward of the invention is not limited to turn clockwise or counter-clockwise It is dynamic, recorded as just a relative rotation of reversion), driving device 14 drives washing impeller 11 to rotate forward, by wash liquid Be 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 1 inverts, (present invention reversion is not limited to rotate clockwise or counterclockwise, as just a relative rotation of rotating forward To record), driving device 14 drives water impeller 13 to invert, and, to the dirty water after wash dishes, will pass through in liner 10 Drainpipe discharge, washing pump and draining pump is integrated, while being again combined into one washing function and drain function, so that washing Bowl machine water circuit system has obtained high optimization, reduces water consumption, prevents accumulation wash liquid excessive in pipeline, improve The service efficiency of wash liquid；Since washing pump and draining pump are combined into one, so that water pump of the present invention 1 is in dish-washing machine In, shared space is minimum, so that dish-washing machine expands washing capacity in the case where structure size is constant, improves washing Efficiency.

Shown in Figure 6, there is washing impeller 11 wheel hub 111 being fixed on the pump shaft 12 of water pump 1 and setting to take turns Spaced multiple first blades 112 on 111 outer peripheral surface of hub.First blade 112 enhances wash liquid flowing, and to washing water Road provides washing power.First blade 112 includes to washing 11 axis direction of impeller, by wash liquid by wash liquid along washing 11 axis direction of impeller upwards and guide the first Drainage Section 1121；Wash liquid is added upwards along washing 11 axis direction of impeller Second accelerating sections 1122 of speed, the second accelerating sections 1122 are vertically arranged；It further include the radial direction by wash liquid to washing impeller 11 The third Drainage Section 1123 of direction guidance, third Drainage Section 1123 are located in spray chamber 21.First blade 112 include from it is lower to On the first Drainage Section 1121, the second accelerating sections 1122 and the third Drainage Section 1123 that set gradually；By the way that the first blade 112 is arranged Structure, enhance the flow tendency of wash liquid, further improve the detersive efficiency of dish-washing machine, so that wash liquid is being washed Washing 11 outlet end of impeller can be flowed into inside spray chamber 21 with the state of a high speed, reduced the consuming cost of electric energy, mentioned The efficiency of spray system is risen.

The arc-shaped spiral helicine structure in first Drainage Section 1121, sets the spiral helicine knot of arc for the first Drainage Section 1121 Structure makes wash liquid under the drive of washing impeller 11, with the rotation of washing impeller 11, preferably by 112 institute of the first blade Guidance preferably enters next structural sections of the first blade 112, upward along its axial direction with the rotation of washing impeller 11 It preferably concentrates, reaches biggish lift.

It is shown in Figure 9, water inlet 23 is offered on the lower end surface of spray arm 2, washing impeller 11 passes through water inlet 23 It protrudes into spray chamber 21.Spray arm 2 is fastened and is formed by upper housing and lower case sealing, and the lower end surface of lower case is namely The lower end surface of spray arm 2, that is, the lower end surface of spray arm 2 are lower than the upper surface for washing impeller 11；In the lower end surface of spray arm 2 Water inlet 23 directly is opened up, the water entering section that setting extends downwardly is saved, advantageously reduces the height of spray arm 2, and be conducive to Reduce manufacturing cost；Wash liquid has just come into spray chamber 21, favorably when not leaving washing impeller 11 simultaneously In the energy loss for reducing injection water, and the washing impeller 11 being located in spray chamber 21, for water flow in spray chamber Flowing in 21 has biggish impetus, advantageously ensures that the flow intensity sprayed from spray apertures 22, improves washing cleaning Degree.

It is shown in Figure 5, the Supporting cover 15 cooperated with spray arm 2 is equipped on water pump 1, washing impeller 11 passes through Supporting cover Through-hole 151 and stretching upwards on 15, are equipped with the first auxiliary section 152 to match with water inlet 23 in Supporting cover 15.Specifically , the first auxiliary section 152 have the first sagittal plane 1521 matched with 2 lower end surface of spray arm in the outside of water inlet 23 and The first axis face 1522 upwardly extended along the inside of the first sagittal plane 1521.Spray arm 2 is placed directly into Supporting cover 15, is made Impeller 11 must be washed 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 Support 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 is in the rotary spray state to suspend, so that spray arm 2 is not contacted in spray between other component, that is, sprays The water flow support that arm 2 sprays upwards through water pump, spray arm 2 move slightly upwards, are in suspended state away from Supporting cover 15； The rotary spray state that spray arm 2 suspends reduces friction when spray arm 2 rotates, and avoids abrasion when spray arm 2 rotates, Be conducive to the promotion of the speed, efficiency of 2 rotary spray of spray arm；It saves simultaneously and the rotatable part of spray arm 2 is set It sets, advantageously reduces the height of spray arm 2, shorten washing water route, reduce the occupancy to 10 space of liner, reduce installation, manufacture Cost.

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 this way in washing water in Supporting cover 15 When road works, when spray arm 2 is moved up in suspended state, what spray arm 2 moved up highly preferred is less than or equal to the The height of one axial face 1522 avoids Supporting cover 15 from being in water inlet 23 and is radially superimposed with certain, avoids Supporting cover 15 are in water inlet 23 and radially have gap, guarantee the water flow that washed impeller 11 raises, fully enter in spray chamber 21.

The top of wheel hub 111 has the flared section extended upwardly and outwardly, and the upper surface of the first blade 112 is upward and diameter To outwardly extending arc, it is connect on the inside of the upper surface of the first blade 112 with the upper surface of wheel hub 111.It is logical in Supporting cover 15 The inside in hole 15 is equipped with to be extended and inwardly protruded arc-shaped conduction part 154 in above-below direction, in the arc of conduction part 154 The outer end of side and the first blade 112 is towards matching, so that rotation of the water flow that raises of washed impeller 11 with the first blade 112 It flows up, the arc shaped inside face of conduction part 154 is flowed through on the outside of the water flow raised, can more smoothly reach spray chamber In 21.

The accommodating chamber 16 for accommodating wash liquid is formed in the lower section of Supporting cover 15, the wash liquid in accommodating chamber 16 is washing It is sprayed under the drive of impeller 11 to spray chamber 21.Accommodating chamber 16 is located at position relatively low in liner 10 so that spray Washing water afterwards is flowed back into again in accommodating chamber 16.

Referring to shown in Figure 10-Figure 13, draining is realized when in order to realize that water impeller 13 inverts, when rotating forward does not drain；Water pump 1 It further include water drain cavity 161, water drain cavity 161 is connected to draining water inlet pipe 162 and draining outlet pipe 163, water impeller 13 In water drain cavity 161；With the baffle structure 171 of radially fixed setting, the use of baffle structure 171 in water drain cavity 161 In the flow direction for the water flow that guidance water impeller 13 pushes.By the baffle structure 171 of radially fixed setting, pushed away in water impeller 13 When dynamic water flow flowing, water flow is drained into draining water inlet pipe 162 or drained out by the block water flow radially of baffle structure 171 In water pipe 163；Forward or reverse by water impeller 13, the water flow in water drain cavity 161 is pushed forward or reverse, also Water impact to the first drainage face or the second drainage face of baffle structure 171, and further water flow led into drain into In water pipe 162 or draining outlet pipe 163；Since baffle structure 171 is fixedly installed, is conducive to the stability of baffle structure 171, has Conducive to the effect for guaranteeing drainage, the problem of drainage is failed is avoided the occurrence of.

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.

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 dish-washing machine with suspension spray arm characterized by comprising

For accommodating the liner to washing articles；

The water pump of the liner at the bottom is set, and the water pump, which is equipped with, provides the washing impeller of washing power；

Spray arm in the liner is set, and the spray arm and the water pump are coaxially disposed, and the spray arm is in spray In suspended state.

2. dish-washing machine according to claim 1, which is characterized in that have spray chamber, the washing in the spray arm Impeller-driven wash liquid is injected into the spray chamber upwards, wash liquid give the upward power of the spray arm be greater than or The downward gravity being subject to equal to spray arm.

3. dish-washing machine according to claim 1, which is characterized in that have spray chamber, the spray in the spray arm Chamber has the intake antrum being located in the middle part of the spray arm and the spray stream equipped with spray apertures being connected to the intake antrum Road, the roof of the intake antrum are equipped with positioning region extending downwardly and for spray arm rotation.

4. dish-washing machine according to claim 3, which is characterized in that the positioning region and washing impeller coaxial arrangement, it is described Positioning region is located at the top of the washing impeller.

5. dish-washing machine according to claim 4, which is characterized in that the positioning region is basin shape, and the washing impeller has The wheel hub that is fixed on the pump shaft of the water pump and multiple first blades that the wheel hub axial direction is set, the wheel hub Radial dimension is greater than the radial dimension of the positioning region bottom.

6. dish-washing machine according to claim 5, which is characterized in that the lower end surface of the positioning region have bottom surface and with institute State the arcuate flanks of bottom surface smooth transition.

7. dish-washing machine according to claim 6, which is characterized in that the upper surface of first blade be upwards and it is radial to The arc of outer extension, the upper surface of first blade and the arcuate flanks of the positioning region match.

8. according to the described in any item dish-washing machines of claim 3 to 7, which is characterized in that the intake antrum and spray runner it Between be equipped with to wash liquid in the indoor flowing of spray chamber, play the flow-guiding structure of drainage and buffer function.

9. dish-washing machine according to claim 8, which is characterized in that be provided between the flow-guiding structure and spray arm inner wall Opening, wash liquid are transported to spray runner from opening from intake antrum.

10. dish-washing machine according to claim 9, which is characterized in that the flow-guiding structure includes that wash liquid is made to enter spray After drenching chamber, the first diversion section moved along at least one section of circular path enters spray runner from opening guidance wash liquid The second diversion section.