CN208973738U

CN208973738U - Gushing arm component and washing electric appliance with it

Info

Publication number: CN208973738U
Application number: CN201821410955.4U
Authority: CN
Inventors: 赵利铭; 蔡思琦; 费望春
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2019-06-14
Anticipated expiration: 2028-08-28

Abstract

The utility model discloses a kind of gushing arm component and with its washing electric appliance.The gushing arm component includes: gushing arm, and gushing arm includes: lower spraying arm, upper gushing arm, and upper gushing arm is connected and is located at the top of lower spraying arm with lower spraying arm, and upper gushing arm can be rotated relative to lower spraying arm, is provided with the first ball assembly at the connection cooperation of upper gushing arm and lower spraying arm；Gushing arm seat, gushing arm are connected with gushing arm seat, and gushing arm can be rotated relative to gushing arm seat；Second ball assembly, the second ball assembly are arranged at the connection cooperation of gushing arm and gushing arm seat.It is preferable to clean effect for gushing arm component according to the present utility model, and the friction between upper gushing arm and lower spraying arm, gushing arm and gushing arm seat is smaller, to improve the stability of rotation of gushing arm.

Description

Gushing arm component and washing electric appliance with it

Technical field

The utility model relates to household appliance technical fields, in particular to a kind of gushing arm component and with its washing electricity Device.

Background technique

Current washing electric appliance gushing arm is easy to produce cleaning dead angle, by taking dish-washing machine as an example, dish-washing machine in the process of cleaning The Position Design of bowl basket and gushing arm is worked good, and the design of existing bowl basket is mostly the standard tableware according to the domestic market of China Design, when consumer in own home in actual use, if the size of tableware, placement position, the tableware of direction and standard are big It is small and put difference, then it is easy to cause dish-washing machine not wash clean clearly at work, generates user's pain spot.Some dish-washing machines are in order to mention Clean ability is risen, using satellite gushing arm or WaterWall (waterwall), but structure is complicated by satellite gushing arm or WaterWall, cost It is high, it is unfavorable for promoting and applying.

In addition, the major way that gushing arm is connect with gushing arm seat flange and is snapped fit attachment by clamping, but it is this The gap that connection type will lead between gushing arm and gushing arm seat is larger, and when dishwasher into operation, the water in gushing arm is easy by being somebody's turn to do Gap leakage influences cleaning effect.In addition, friction mode between the two is when gushing arm and gushing arm seat generate relative motion Sliding friction, therefore the hydrodynamic force lost is bigger.On the other hand, it snaps connection mode and directly results in the upper of gushing arm seat and gushing arm Lower height dimension is larger, wastes the liner space of washing electric appliance in this way, reduces putting for washing electric appliance inside part to be cleaned Space.

Utility model content

The utility model is intended to solve one of above-mentioned technical problem in the prior art at least to a certain extent.For this purpose, The utility model proposes a kind of gushing arm component, the frictional force inside gushing arm and the friction between gushing arm and gushing arm seat can reduce Power.

The utility model also proposed a kind of washing electric appliance with above-mentioned gushing arm component.

It include: gushing arm according to the gushing arm component of the utility model embodiment, the gushing arm includes: lower spraying arm, upper gushing arm, institute The top that gushing arm is connected and is located at the lower spraying arm with the lower spraying arm is stated, the upper gushing arm can turn relative to the lower spraying arm It is dynamic, the first ball assembly is provided at the connection cooperation of the upper gushing arm and the lower spraying arm；Gushing arm seat, the gushing arm with it is described Gushing arm seat is connected, and the gushing arm can be rotated relative to the gushing arm seat；Second ball assembly, the second ball assembly setting At the connection cooperation of the gushing arm and the gushing arm seat.

Gushing arm number is increased by setting lower spraying arm and upper gushing arm according to the gushing arm component of the utility model embodiment Amount is conducive to enhance gushing arm to the cleaning effect of tableware, in addition, by the way that the first ball set is arranged between upper gushing arm and lower spraying arm Part makes to be in rolling contact between gushing arm and lower spraying arm, it is possible thereby to reduce the frictional force between upper gushing arm and lower spraying arm, thus Be conducive to reduce hydrodynamic force loss, improve hydrodynamic utilization rate, is conducive to promote the cleaning effect that washing electric appliance treats cleaning part Fruit.Meanwhile being connected between upper gushing arm and lower spraying arm by the first ball assembly, it can effectively reduce the height dimension of gushing arm.In addition, By the way that the second ball assembly is arranged between gushing arm and gushing arm seat, make to be in rolling contact between gushing arm and gushing arm seat, it is possible thereby to Reduce the frictional force between gushing arm and gushing arm seat, to be conducive to further decrease hydrodynamic force loss, promotes washing electric appliance and treat The cleaning effect of cleaning part, while can effectively reduce the height dimension of gushing arm component, so that washing electric appliance inner space is saved, More spaces are left for putting for part to be cleaned, improve the capacity of washing electric appliance.

Some embodiments according to the present utility model, the lower spraying arm include: lower spraying arm upper joint sleeve, lower spraying arm ontology, The upside of the lower spraying arm ontology is arranged in the lower spraying arm upper joint sleeve, and the upper gushing arm includes: upper gushing arm ontology and upper spray Arm connector sleeve, the upper gushing arm connection are set on the downside of the upper gushing arm ontology, and first ball assembly is arranged in institute At the connection cooperation for stating gushing arm connector sleeve and the lower spraying arm upper joint sleeve.

Some embodiments according to the present utility model, first ball assembly and second ball assembly are at least wrapped Include: multiple balls of multiple balls, first ball assembly are arranged in the upper gushing arm connector sleeve and the lower spraying arm At the connection cooperation of upper joint sleeve, multiple balls of second ball assembly are arranged in the lower spraying arm and the gushing arm At the connection cooperation of seat.

Further, first ball assembly and second ball assembly are equal further include: intermediate sleeve, the centre Multiple ball holes are provided on sleeve, the ball is mounted in the ball hole, and the ball is in the intermediate sleeve Radially protrude the inner peripheral surface and outer peripheral surface of the intermediate sleeve.

Optionally, first ball assembly and second ball assembly are equal further include:

The inside of the ball is arranged in inner sleeve, the inner sleeve, and is provided on the outer peripheral surface of the inner sleeve suitable In the inner sleeve ball grooves with the ball engagement.

Further, first ball assembly and second ball assembly are equal further include: outer sleeve, the outer sleeve The outside of the ball is set, and is provided on the inner peripheral surface of the outer sleeve and is suitable for rolling with the outer sleeve of the ball engagement Pearl slot.

Some embodiments according to the present utility model, first ball assembly and second ball assembly are also wrapped Include: the outside of the ball is arranged in outer sleeve, the outer sleeve, and is provided with and is suitable for and institute on the inner peripheral surface of the outer sleeve State the outer sleeve ball grooves of ball engagement.

Some embodiments according to the present utility model are detachably connected between the lower spraying arm and the upper gushing arm.

Optionally, the top of the lower spraying arm upper joint sleeve is buckled with lower spraying arm, and the lower spraying arm buckle is suitable for being stuck in The upper surface of the inner sleeve of first ball assembly.

Optionally, the inner sleeve of first ball assembly has inner sleeve screw thread, the lower spraying arm upper joint sleeve With screw thread on lower spraying arm, screw thread is spirally connected with the inner sleeve screw thread on the lower spraying arm.

Some embodiments according to the present utility model, the lower spraying arm upper joint sleeve are described with first ball assembly It is interference fit between inner sleeve.

Some embodiments according to the present utility model, the upper gushing arm connector sleeve are described outer with first ball assembly It is interference fit between sleeve；Or

The outer sleeve of first ball assembly has outer sleeve screw thread, and the upper gushing arm connector sleeve has upper gushing arm Screw thread, the upper gushing arm screw thread are spirally connected with the outer sleeve screw thread.

Some embodiments according to the present utility model are detachably connected between the lower spraying arm and the gushing arm seat.

Optionally, the gushing arm seat includes: gushing arm seat ontology, and the top of the gushing arm seat ontology is buckled with gushing arm seat, The gushing arm seat buckle is suitable for being stuck in the top of the inner sleeve of second ball assembly.

Optionally, the inner sleeve of second ball assembly has inner sleeve screw thread, and the gushing arm seat tool has gushing arm Seat screw thread, the gushing arm seat screw thread are spirally connected with the inner sleeve screw thread.

Some embodiments according to the present utility model, the inner sleeve of the gushing arm seat and second ball assembly it Between for interference fit.

Some embodiments according to the present utility model, the lower spraying arm lower joint sleeve are described with second ball assembly It is interference fit between outer sleeve；Or

The outer sleeve of second ball assembly has outer sleeve screw thread, and the lower spraying arm lower joint sleeve has lower spray Screw thread under arm, screw thread is spirally connected with the outer sleeve screw thread under the lower spraying arm.

The length of some embodiments according to the present utility model, the upper gushing arm ontology is the length of the lower spraying arm ontology 0.5-2 times.

According to the washing electric appliance of the utility model another aspect embodiment, including above-mentioned gushing arm component.

Detailed description of the invention

Fig. 1 is stereoscopic schematic diagram (upper gushing arm and the lower spraying arm angle of the gushing arm component of the utility model one embodiment 0°)；

Fig. 2 is stereoscopic schematic diagram (upper gushing arm and the lower spraying arm angle of the gushing arm component of the utility model one embodiment 90°)；

Fig. 3 is the top view (0 ° of upper gushing arm and lower spraying arm angle) of the gushing arm component of the utility model one embodiment；

Fig. 4 is the cross-sectional view of the gushing arm component of the utility model one embodiment；

Fig. 5 is partial enlargement diagram at A in Fig. 4；Fig. 6 is the exploded view of gushing arm component；

Fig. 7 is partial enlargement diagram at B in Fig. 6；Fig. 8 is partial enlargement diagram at C in Fig. 6；

Fig. 9 is the schematic diagram of the gushing arm component of second embodiment of the utility model；

Figure 10 is the schematic diagram of the gushing arm component of the utility model third embodiment；

Figure 11 is the schematic diagram of the second driving protrusion；Figure 12 is the schematic diagram of the first driving protrusion；

Figure 13 is the schematic diagram of the first intermediate sleeve；Figure 14 is the variation example schematic diagram of the first ball assembly；

Figure 15 is the variation example schematic diagram of the second ball assembly.

Appended drawing reference:

Gushing arm component 1000；Upper gushing arm 100, second drive raised 110, second drive hole 111, upper gushing arm ontology 120, on Gushing arm connector sleeve 130, upper gushing arm ball grooves 131, upper chamber 140, upper hole for water spraying 160；The driving protrusion of lower spraying arm 200, first 210, the first drive hole 211, lower spraying arm upper joint sleeve 220, lower spraying arm ontology 230, lower spraying arm lower joint sleeve 240, connector sleeve week Wall 241, connector sleeve bottom wall 242, lower spraying arm ball grooves 243, lower chambers 250, lower hole for water spraying 260, lower spraying arm buckle 270, lower spray Arm screw thread 280；First ball assembly 300, the first outer sleeve 310, the first outer sleeve ball grooves 313, the first inner sleeve 320, One inner sleeve ball grooves 321, the first ball 330, the first ball hole 350, the first ball pick and place mouth 351, first weaken slot 360, First reduction slot column 361, the first intermediate sleeve 370；Second ball assembly 400, the second outer sleeve 410, the second outer sleeve week Wall 411, the second outer sleeve bottom wall 412, the second outer sleeve ball grooves 413, the second outer sleeve internal screw thread 414, outside the second outer sleeve Screw thread 415, the second inner sleeve 420, the second inner sleeve ball grooves 421, the second inner sleeve external screw thread 422, the second ball 430, Two ball holes 450, the second ball pick and place mouth 451, second and weaken slot 460, second reduction slot column 461, the second intermediate sleeve 470；Gushing arm seat 500, gushing arm seat ontology 510, gushing arm seat buckle 511, gushing arm seat flange 520, gushing arm seat internal screw thread 530, gushing arm Seat water inlet axis 540, gushing arm seat ball grooves 570, gushing arm seat chamber 580.

Specific embodiment

The embodiments of the present invention are described below, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the utility model, and should not be understood as the limit to the utility model System.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or integrally.For ability For the those of ordinary skill in domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

Below with reference to Fig. 1-Figure 15 detailed description according to the gushing arm component 1000 of the utility model embodiment.Gushing arm component 1000 can be used for washing in electric appliance, be applied to gushing arm component 1000 to illustrate the knot of gushing arm component 1000 for dish-washing machine below Structure.

Shown in referring to Fig.1, the gushing arm component 1000 according to the utility model embodiment may include: gushing arm, the first ball Component 300, gushing arm seat 500 and the second ball assembly 400.Specifically, gushing arm may include: lower spraying arm 200 and upper gushing arm 100, upper gushing arm 100 is connected with lower spraying arm 200, and upper gushing arm 100 is located at the top of lower spraying arm 200, and upper gushing arm 100 is relative under Gushing arm 200 can be rotated, and the upper hole for water spraying 160 for spraying water into dish-washing machine is provided on upper gushing arm 100, is set on lower spraying arm 200 It is equipped with the lower hole for water spraying 260 for spraying water into dish-washing machine, the water sprayed from upper hole for water spraying 160 and lower hole for water spraying 260 falls on meal When on tool, cleaning action can be played to tableware.By the way that upper gushing arm 100 is arranged in the top of lower spraying arm 200, the number of gushing arm is increased Amount is conducive to enhance gushing arm to the cleaning effect of tableware to increase the amount of water sprayed of gushing arm.

It is provided with the first drive hole 211 for driving lower spraying arm 200 to rotate around first direction on lower spraying arm 200, works as spray When water column inside arm is sprayed from the first drive hole 211, lower spraying arm 200 be will receive when water column is sprayed from the first drive hole 211 Reaction force (i.e. reverse actuating force), at this point, lower spraying arm 200 can rotate under the action of reaction force around first direction, first Direction is opposite with the opening direction of the first drive hole 211.As water column is constantly sprayed from the first drive hole 211, lower spraying arm 200 sustainably rotate, and the water column sprayed from the first drive hole 211 can be spilt around with the rotation of lower spraying arm 200, from lower spray The water flow that the lower hole for water spraying 260 of arm 200 sprays also enters the working region of dish-washing machine, and then the two cooperates the meal in dish-washing machine The spot of tool or dish-washing machine inner wall is cleaned.

It is provided with the second drive hole 111 for driving upper gushing arm 100 to rotate around second direction on upper gushing arm 100, works as water When column is sprayed from the second drive hole 111, upper gushing arm 100 will receive reaction force when water column is sprayed from the second drive hole 111, this When, upper gushing arm 100 can rotate under the action of reaction force around second direction, the aperture of second direction and the second drive hole 111 It is contrary.As water column is constantly sprayed from the second drive hole 111, upper gushing arm 100 is sustainably rotated, and works as upper spray When arm 100 rotates, the water column sprayed from the second drive hole 111 is spilt around, is sprayed from the upper hole for water spraying 160 of upper gushing arm 100 Water flow also enter the working region of dish-washing machine, cooperation by the tableware in dish-washing machine or is washed jointly for upper gushing arm 100 and lower spraying arm 200 The spot of bowl machine inner wall is cleaned.

It should be noted that the second direction of first direction and the rotation of upper gushing arm 100 that lower spraying arm 200 rotates is on the contrary, water When column is sprayed from the second drive hole 111 of the first drive hole 211 of lower spraying arm 200 and upper gushing arm 100 simultaneously, lower spraying arm 200 Rotated simultaneously with upper gushing arm 100, and the two rotation contrary (such as with reference to shown in Fig. 1-Fig. 3, lower spraying arm 200 can be along inverse Hour hands rotation, upper gushing arm 100 can be along rotating clockwise, certainly, and lower spraying arm 200 can also be along rotating clockwise, and upper gushing arm 100 can Rotate counterclockwise), at this point, being sprayed from the first drive hole 211 of lower spraying arm 200 and the second drive hole 111 of upper gushing arm 100 Water column spray in opposite direction, when the water column sprayed from the first drive hole 211 and the second drive hole 111 fall in simultaneously tableware or When on dish-washing machine inner wall, the direction cleaned after putting forth effort by the water column sprayed onto tableware or dish-washing machine inner wall is inconsistent, from And the water column sprayed from the first drive hole 211 and the second drive hole 111 is made to generate kneading force on tableware or dish-washing machine inner wall, And then enhance the clean effect of gushing arm, it is ensured that tableware or dish-washing machine inner wall washing are clean.In addition, upper gushing arm 100 is under Gushing arm 200 rotates backward, and can also make the water sprayed from the upper hole for water spraying 160 of upper gushing arm 100 and from the lower hole for water spraying of lower spraying arm 200 260 water sprayed generate kneading force on tableware, and then promote the clean effect of gushing arm.

The water column direction and position that upper gushing arm 100 and lower spraying arm 200 are ejected on tableware be it is multidirectional, reduce dead angle more It is easy to clean, since the coverage rate of water flow is larger, scavenging period also can be reduced accordingly, that is, be conducive to shorten scavenging period.

First ball assembly 300 is arranged at the connection cooperation of upper gushing arm 100 and lower spraying arm 200, upper gushing arm 100 and lower spray It is indirectly connected between arm 200 by the realization of the first ball assembly 300, when upper gushing arm 100 is rotated relative to lower spraying arm 200, on Friction type between gushing arm 100 and lower spraying arm 200 is rolling friction, the sliding friction before being no longer, this ensure that on Friction is small when gushing arm 100 is rotated relative to lower spraying arm 200, i.e., resistance very little when force of rolling friction rotates gushing arm, Therefore the hydrodynamic force as caused by friction can be reduced to lose, improve hydrodynamic utilization rate.Meanwhile upper gushing arm 100 relative to Fast speed when lower spraying arm 200 rotates is conducive to improve gushing arm 100 and lower spraying arm by the way that the first ball assembly 300 is arranged Ride comfort when 200 relative rotation, to advantageously reduce the noise of dish-washing machine.

In addition, the first ball assembly 300 is arranged between upper gushing arm 100 and lower spraying arm 200, by upper gushing arm 100 under Gushing arm 200 is connected as one, can be effective compared to original upper gushing arm 100 with lower spraying arm 200 separately through the form snapped connection The height of gushing arm 100 and 200 junction of lower spraying arm saves in dish-washing machine to reduce the height dimension of gushing arm in reduction Portion space leaves more spaces for putting for tableware, and then improves the tableware capacity of dish-washing machine, such as can increase and wash Useful load 10mm-40mm inside bowl machine.

Gushing arm is connected with gushing arm seat 500, and gushing arm seat 500 is located at the lower section of gushing arm, and gushing arm can turn relative to gushing arm seat 500 It is dynamic, by the way that gushing arm seat 500 is arranged, interface is provided for the connection of gushing arm and internal cavity of bowl washer, meanwhile, gushing arm seat 500 can be with The inlet pipeline for serving as gushing arm, after the water source of dish-washing machine is connected, water flow is flowed into gushing arm from gushing arm seat 500.Specifically, it sprays Arm seat 500 is connected with lower spraying arm 200.

After the hydraulic pressure in lower spraying arm 200 reaches certain value, lower spraying arm 200 begins through lower hole for water spraying 260 and first and drives Dynamic hole 211 sprays water column, reaction force when lower spraying arm 200 is sprayed by water column and rotated around first direction, when upper gushing arm 100 After interior hydraulic pressure reaches certain value, upper gushing arm 100 begins through hole for water spraying 160 and the second drive hole 111 sprays water column, upper spray Arm 100 by water column spray when reaction force and around second direction rotate, as water column is constantly from hole for water spraying and drive hole Middle ejection, lower spraying arm 200 and upper gushing arm 100 sustainably rotate, and the water column sprayed from hole for water spraying and drive hole is with gushing arm Rotation can be spilt to tableware surface or dish-washing machine inner wall, and then the spot of tableware or dish-washing machine inner wall is cleaned, to complete to wash the dishes Cleaning of the machine to tableware.

Second ball assembly 400 is arranged at the connection cooperation of gushing arm and gushing arm seat 500, as shown in figure 4, lower spraying arm 200 It is indirectly connected between gushing arm seat 500 by the realization of the second ball assembly 400, when gushing arm is rotated relative to gushing arm seat 500, spray Friction type between arm and gushing arm seat 500 is rolling friction, the sliding friction before being no longer, in this way, force of rolling friction pair Resistance very little when gushing arm rotates, therefore the hydrodynamic force as caused by friction can be reduced and lost, improve hydrodynamic utilization rate. Meanwhile gushing arm relative to gushing arm seat 500 rotate when fast speed, by be arranged the second ball assembly 400, be conducive to improve spray Ride comfort when arm rotates, to advantageously reduce the noise of dish-washing machine.

In addition, the second ball assembly 400 is arranged between gushing arm and gushing arm seat 500, gushing arm and gushing arm seat 500 are connected as One can effectively reduce gushing arm and gushing arm seat compared to original gushing arm and gushing arm seat 500 separately through the form snapped connection The height of 500 junctions saves dish washer interior space to reduce the height dimension of gushing arm component 1000, is tableware Put and leave more spaces, and then improve the tableware capacity of dish-washing machine, such as dish washer interior loading can be increased Measure 10mm-40mm.

Increased according to the gushing arm component 1000 of the utility model embodiment by setting lower spraying arm 200 and upper gushing arm 100 Add gushing arm quantity, be conducive to enhance gushing arm to the cleaning effect of tableware, and be provided with the first drive hole 211 on lower spraying arm 200, The second drive hole 111 is provided on upper gushing arm 100, it is ensured that upper gushing arm 100 is rotated backward relative to lower spraying arm 200, thus So that the water column sprayed from lower spraying arm 200 and upper gushing arm 100 is generated kneading force on tableware, and then enhances the clean effect of gushing arm Fruit, it is ensured that wash dishes are clean.In addition, by the way that the first ball assembly is arranged between upper gushing arm 100 and lower spraying arm 200 300, make to be in rolling contact between gushing arm 100 and lower spraying arm 200, it is possible thereby to reduce between upper gushing arm 100 and lower spraying arm 200 Frictional force improve hydrodynamic utilization rate to be conducive to reduce hydrodynamic force loss, guarantee water from upper hole for water spraying 160 and under Pressure when hole for water spraying 260 sprays is larger, is conducive to be promoted dish-washing machine to the cleaning effect of tableware.In addition, passing through setting gushing arm Seat 500, provides connecting interface for gushing arm, while gushing arm seat 500 acts also as the inlet pipeline of gushing arm, by gushing arm and gushing arm Second ball assembly 400 is set between seat 500, is made to be in rolling contact between gushing arm and gushing arm seat 500, it is possible thereby to reduce gushing arm Improve hydrodynamic utilization rate to be conducive to reduce hydrodynamic force loss with the frictional force between gushing arm seat 500, guarantee water from Pressure when gushing arm hole for water spraying sprays is larger, is conducive to be promoted dish-washing machine to the cleaning effect of tableware.Meanwhile upper gushing arm 100 with It is connected between lower spraying arm 200 by the first ball assembly 300, is connected between gushing arm and gushing arm seat 500 by the second ball assembly 400 It connects, can effectively reduce the height dimension of gushing arm component 1000, to save dish washer interior space, reserved for putting for tableware More spaces, improve the tableware capacity of dish-washing machine.

In some embodiments of the utility model, lower spraying arm 200 may include: lower spraying arm upper joint sleeve 220, lower spraying arm Ontology 230 and lower spraying arm lower joint sleeve 240, lower spraying arm upper joint sleeve 220 are arranged in the upside of lower spraying arm ontology 230, facilitate Upper gushing arm 100 is connect with lower spraying arm 200, ensure that gushing arm 100 can be reliably connected as one with lower spraying arm 200.Lower spray The downside of lower spraying arm ontology 230 is arranged in arm lower joint sleeve 240, facilitates lower spraying arm 200 and gushing arm seat 500 is fixed.

Lower spraying arm upper joint sleeve 220, lower spraying arm ontology 230 and lower spraying arm lower joint sleeve 240 are connected as one, and lower spraying arm Upper joint sleeve 220 and lower spraying arm lower joint sleeve 240 are respectively positioned on the middle part of lower spraying arm ontology 230, thus advantageously ensure that gushing arm Balance.In conjunction with shown in Fig. 4-Fig. 5, tool in lower spraying arm upper joint sleeve 220, lower spraying arm ontology 230 and lower spraying arm lower joint sleeve 240 There are the lower chambers 250 of connection, the first drive hole 211 is connected to lower chambers 250, and the first drive hole 211 is connected to lower chambers 250. Lower spraying arm upper joint sleeve 220, lower spraying arm ontology 230 and lower spraying arm lower joint sleeve 240 can be hollow part, three components Lower chambers 250 are collectively formed in hollow position, and the first drive hole 211 is connected with the hollow position of lower spraying arm ontology 230, therefore the One drive hole 211 is connected to lower chambers 250.

Gushing arm seat 500 has gushing arm seat chamber 580, and gushing arm seat chamber 580 is connected to lower chambers 250, guarantees gushing arm seat 500 In water can enter lower spraying arm 200 in.Further, upper gushing arm 100 may include: that upper gushing arm ontology 120 is connected with upper gushing arm Set 130, the downside of upper gushing arm ontology 120 is arranged in upper gushing arm connector sleeve 130, thereby facilitates gushing arm 100 and lower spraying arm 200 Connection, ensure that gushing arm 100 can be reliably connected as one with lower spraying arm 200.

There is the upper chamber 140 being connected in upper gushing arm ontology 120 and upper gushing arm connector sleeve 130, the second drive hole 111 with it is upper Chamber 140 is connected to, and upper chamber 140 is also connected to lower chambers 250, it is possible thereby to guarantee the water at dish-washing machine water source through gushing arm seat chamber Room 580, lower chambers 250 can smoothly enter in upper chamber 140, so water through on gushing arm hole for water spraying and drive hole be ejected into Tableware surface, to complete the operation of cleaning tableware.Upper chamber 140 and lower chambers 250, upper chamber are continued into dampening 140 and lower chambers 250 in hydraulic pressure it is higher and higher, the water column institute sprayed at this time from the first drive hole 211 and the second drive hole 111 The reaction force of generation is also bigger, and upper gushing arm 100 and the speed that lower spraying arm 200 rotates are also faster, meanwhile, the water column of ejection is clapped The power beaten on tableware is also bigger, is conducive to the spot cleaned on tableware, therefore by the way that upper chamber 140 and lower chambers 250 are arranged, It can guarantee that water abundance, the washing effect of dish-washing machine are preferable.

First ball assembly 300 is arranged at the connection cooperation of upper gushing arm connector sleeve 130 and lower spraying arm upper joint sleeve 220, As a result, when upper gushing arm connector sleeve 130 relatively rotates with lower spraying arm upper joint sleeve 220, the first ball assembly 300 can be rolled It is dynamic, to play the role of reducing frictional force between upper gushing arm connector sleeve 130 and lower spraying arm upper joint sleeve 220.Meanwhile upper gushing arm After connecting between connector sleeve 130 and lower spraying arm upper joint sleeve 220 using the first ball assembly 300, gushing arm company can reduce The height dimension of female connector 130 and lower spraying arm upper joint sleeve 220 is the pendulum of tableware to reduce the overall height dimension of gushing arm It puts and leaves more spaces.

In some embodiments of the utility model, the first ball assembly 300 and the second ball assembly 400 are at least wrapped Include: multiple ball settings of multiple balls, the first ball assembly 300 connect on upper gushing arm connector sleeve 130 and lower spraying arm At the connection cooperation of set 220, the company of lower spraying arm 200 Yu gushing arm seat 500 is arranged in multiple balls of the second ball assembly 400 It connects at cooperation.

Further, the first ball assembly 300 and the second ball assembly 400 be further include: intermediate sleeve, on intermediate sleeve Multiple ball holes are provided with, ball is mounted in ball hole, and ball radially protruding in intermediate sleeve in intermediate sleeve Circumferential surface and outer peripheral surface.

Optionally, the first ball assembly 300 and the second ball assembly 400 are equal further include: inner sleeve, inner sleeve setting are being rolled The inside of pearl, and the inner sleeve ball grooves being suitable for ball engagement are provided on the outer peripheral surface of inner sleeve.

Further, the first ball assembly 300 and the second ball assembly 400 are equal further include: outer sleeve, outer sleeve setting exist The outside of ball, and the outer sleeve ball grooves being suitable for ball engagement are provided on the inner peripheral surface of outer sleeve.

In Fig. 4-embodiment shown in Fig. 8, any of the first ball assembly 300 and the second ball assembly 400 are equal Include: intermediate sleeve, ball and inner sleeve, multiple ball holes are provided on intermediate sleeve, ball is mounted in ball hole, and is rolled For pearl in the inner peripheral surface and outer peripheral surface for radially protruding intermediate sleeve of intermediate sleeve, the inside of intermediate sleeve is arranged in inner sleeve, And the inner sleeve ball grooves being suitable for ball engagement are provided on the outer peripheral surface of inner sleeve.

Optionally, the diameter of ball is 3mm-8mm, and the ball quantity in each ball assembly is 4-12, and excellent Selection of land, the ball quantity in each ball assembly is even number, it is possible thereby to guarantee each ball assembly stress equalization, alleviates stress Concentration phenomenon.

The structure of the first ball assembly 300 and the second ball assembly 400 is discussed in detail below with reference to Fig. 4-Fig. 8, and more than Gushing arm connector sleeve 130 is set in the outside of lower spraying arm upper joint sleeve 220, lower spraying arm lower joint sleeve 240 is set in gushing arm seat 500 It is illustrated for outside.

Specifically, as shown in Figure 5-Figure 7, the first ball assembly 300 includes: the first intermediate sleeve 370, the first ball 330 With the first inner sleeve 320, the first inner sleeve 320 is arranged in the inside of the first intermediate sleeve 370, sets on the first intermediate sleeve 370 Multiple first ball holes 350 are equipped with, the first ball 330 is mounted in the first ball hole 350, and the first ball hole 350 is the first rolling The fixation of pearl 330 provides support, guarantees that the relative position of multiple first balls 330 is constant, prevent multiple first balls 330 it Between collide, squeeze, it is possible thereby to improve the job stability of the first ball assembly 300.

The inner surface of first ball 330 and upper gushing arm connector sleeve 130 is in rolling contact, and the first ball 330 and the first inner sleeve The outer surface of cylinder 320 is in rolling contact, and the inside of the first inner sleeve 320 is arranged at least part of lower spraying arm upper joint sleeve 220, And first inner sleeve 320 be fixedly connected with lower spraying arm upper joint sleeve 220, therefore, pass through between upper gushing arm 100 and lower spraying arm 200 The realization of first ball assembly 300 is indirectly connected with, the knot that upper gushing arm 100, lower spraying arm 200 are connect with 300 three of the first ball assembly Structure is simple, stablizes.

First ball 330 is in inner peripheral surface and the periphery for radially protruding the first intermediate sleeve 370 of the first intermediate sleeve 370 Face, that is to say, that the diameter of the first ball 330 is greater than the wall thickness of the first intermediate sleeve 370, and the outside of the first ball 330 is outside The inside of the outer peripheral surface of prominent first intermediate sleeve 370, the first ball 330 protrudes inwardly from 370 inner peripheral surface of the first intermediate sleeve.

The the first inner sleeve ball grooves for being suitable for cooperating with the first ball 330 are provided on the outer peripheral surface of first inner sleeve 320 321, the upper gushing arm ball grooves 131 for being suitable for cooperating with the first ball 330 are provided on the inner peripheral surface of upper gushing arm connector sleeve 130, the It is to be in rolling contact between one ball 330 and the first inner sleeve ball grooves 321, upper gushing arm ball grooves 131, and due to the first inner sleeve Cylinder 320 is fixedly connected with lower spraying arm upper joint sleeve 220, therefore when lower spraying arm 200 and upper gushing arm 100 relatively rotate, upper gushing arm It is equivalent to and is in rolling contact between connector sleeve 130 and lower spraying arm upper joint sleeve 220, friction is small.

Upper gushing arm ball grooves 131, the first inner sleeve ball grooves 321 are circumferential annular groove, it is possible thereby to guarantee upper gushing arm The smoothness of 100 whole circle rotations.In a particular embodiment, the diameter of upper gushing arm ball grooves 131, the first inner sleeve ball grooves 321 Can be equal with the diameter of the first ball 330, or the diameter of the first ball 330 can also be slightly larger than, it thus can guarantee first Ball 330 and upper gushing arm ball grooves 131,321 no-float of the first inner sleeve ball grooves.

In the central axial direction of upper gushing arm connector sleeve 130, upper gushing arm ball grooves 131, the first inner sleeve ball grooves 321, the position of the first ball hole 350 is corresponding, when can prevent gushing arm 100 from rotating, track that the first ball 330 is slided It is different from the track of upper gushing arm ball grooves 131 and the first inner sleeve ball grooves 321, to be squeezed, lead to gushing arm 100 It can not rotate.

Optionally, the top of the first intermediate sleeve 370, referring to Fig.1 shown in 3, the first ball is arranged in the first ball hole 350 Hole 350 is major arc hole, and forms the first ball at the top notch of the first ball hole 350 and pick and place mouth 351.First ball 330 warp First ball picks and places mouth 351 and enters the first ball hole 350 or come out from the first ball hole 350, thereby facilitates the first ball 330 Installation and removal in the first ball hole 350.

Major arc hole is that central angle is greater than 180 ° and the hole less than 360 °, it is possible thereby to make the big portion of each first ball 330 Quartile prevents after being installed in the first ball hole 350, and the first ball 330 falls off out of first ball hole 350.It is installing When the first ball 330, the first ball pick-and-place mouth 351 can be strutted by external force, then by the first ball 330 through the first ball It picking and placing mouth 351 to be mounted in the first ball hole 350, then removes external force, the flexible deformation of the first ball hole 350 disappears therewith, First ball hole 350 restores to the original state, and the first ball hole 350 tightly wraps up the first ball 330 at this time, so that the first ball 330 exists Being more firmly mounted, reliably in the first ball hole 350.

Optionally, it is provided with the first reduction slot 360 between two adjacent the first ball holes 350, it is weak by setting first Change slot 360, the rigidity between two adjacent the first ball holes 350 can be made smaller, thus when installing the first ball 330, the One ball hole 350 is easily deformed, to reduce the installation or removal difficulty of the first ball 330.Setting in first reduction slot 360 There is the first reduction slot column 361, the first reduction slot column 361 can play certain invigoration effect, to prevent the first reduction The rigidity of 360 the first intermediate sleeve of undue weakening 370 of slot, and then be conducive to improve the functional reliability of the first ball assembly 300.

In some unshowned embodiments, the bottom of the first intermediate sleeve 370, reference is arranged in the first ball hole 350 Shown in Figure 13, the first ball hole 350 is major arc hole, and forms the first ball at the bottom notch of the first ball hole 350 and pick and place mouth 351。

Certainly, in other unshowned embodiments, the first intermediate sleeve can also be arranged in the first ball hole 350 370 middle position, at this point, the first ball hole 350 is the circular hole through 370 wall thickness of the first intermediate sleeve.

It in some embodiments, is to be detachably connected between lower spraying arm 200 and upper gushing arm 100.

Referring to shown in Fig. 4-Fig. 6, the top of lower spraying arm upper joint sleeve 220 has lower spraying arm buckle 270, lower spraying arm buckle 270 are suitable for being stuck in the upper surface of the inner sleeve of the first ball assembly 300, i.e. lower spraying arm buckle 270 is suitable for being stuck in the first inner sleeve 320 upper surface.It is possible thereby to guarantee that lower spraying arm 200 is reliably connected as one with the first inner sleeve 320, and convenient lower spray Arm 200 is attached and is detached from upper gushing arm 100, convenient for the disassembly of gushing arm 1000.

The top of lower spraying arm upper joint sleeve 220 has multiple lower spraying arm grooves, the opening direction of lower spraying arm groove and lower spray The axis direction of arm upper joint sleeve 220 is parallel, and lower spraying arm buckle 270 is upwardly extended from the bottom wall of lower spraying arm groove, and lower spraying arm The two sides of buckle 270 and the two side walls of lower spraying arm groove separate, and thereby guarantee that lower spraying arm buckle 270 can be recessed in lower spraying arm Flexible deformation occurs in slot.The top of lower spraying arm buckle 270 is provided with the hook towards the first inner sleeve 320, and hook is suitable for hooking On the top of the first inner sleeve 320, to limit the position to axial of lower spraying arm 200 and the first inner sleeve 320.

When assembling the first inner sleeve 320 with lower spraying arm 200, the inner peripheral surface of the first inner sleeve 320 squeezes lower spraying arm card The hook of button 270 makes lower spraying arm buckle 270 internal modifications to lower spraying arm upper joint sleeve 220, guarantees that lower spraying arm buckle 270 can The top (i.e. from below to up) that the first inner sleeve 320 is reached from the bottom end of the first inner sleeve 320, when lower spraying arm buckle 270 is crossed When the top of the first inner sleeve 320, extruding force suffered by lower spraying arm buckle 270 disappears, and buckles 270 own resilients in lower spraying arm Under effect, lower spraying arm buckle 270 is close to the first inner sleeve 320, so that hook catches on the top of the first inner sleeve 320.

When needing to separate the first inner sleeve 320 with lower spraying arm 200, firmly gushing arm 100 only need to be lifted up, first 320 top of inner sleeve squeezes hook and continues to lift gushing arm 100 so that hook is retracted in inside the first inner sleeve 320, First inner sleeve 320 is separated with lower spraying arm 200.

The quantity of lower spraying arm buckle 270 can be multiple (such as four), and lower spraying arm groove and lower spraying arm buckle 270 are one by one It is corresponding, and multiple lower spraying arms buckle 270 being arranged circumferentially along lower spraying arm upper joint sleeve 220, it is possible thereby to improve lower spraying arm The clamping stability of buckle 270 and the first inner sleeve 320.

Detachable connection method between lower spraying arm upper joint sleeve 220 and the first inner sleeve 320 is in addition to above-mentioned clamping shape Except formula, it can also be connected through a screw thread.Such as in some unshowned embodiments, the first ball assembly 300 first in Sleeve 320 has inner sleeve screw thread, and lower spraying arm upper joint sleeve 220 has screw thread on lower spraying arm, screw thread and inner sleeve on lower spraying arm Screw thread is spirally connected, and realizes being detachably connected for lower spraying arm upper joint sleeve 220 and the first inner sleeve 320 with this, when unscrewing inner sleeve spiral shell , it can be achieved that the disassembly of lower spraying arm upper joint sleeve 220 and the first inner sleeve 320 when screw thread on line and lower spraying arm.It is connected on lower spraying arm It is connected through a screw thread, is convenient to mount and dismount and connects between set 220 and the first inner sleeve 320 and is reliable.

In some embodiments, as shown in figure 14, in the first of lower spraying arm upper joint sleeve 220 and the first ball assembly 300 It is interference fit between sleeve 320.

In some embodiments, as shown in figure 14, the first housing of upper gushing arm connector sleeve 130 and the first ball assembly 300 It is interference fit between cylinder 310, the connection of upper gushing arm 100 and the first ball assembly 300 is realized with this；Or

In some unshowned embodiments, the first outer sleeve 310 of the first ball assembly 300 has outer sleeve screw thread, Upper gushing arm connector sleeve 130 has upper gushing arm screw thread, and upper gushing arm screw thread is spirally connected with outer sleeve screw thread, with this realize upper gushing arm 100 and The connection of first ball assembly 300.

Second ball assembly 400 is similar with the structure of the first ball assembly 300, as shown in Fig. 5-Fig. 6, Fig. 8, the second ball Component 400 includes: the second intermediate sleeve 470, the second ball 430 and the second inner sleeve 420, is arranged on the second intermediate sleeve 470 There are multiple second ball holes 450, the second ball 430 is mounted in the second ball hole 450, and the second ball hole 450 is the second ball 430 fixation provides support, guarantees that the relative position of multiple second balls 430 is constant, prevents between multiple second balls 430 It collides, squeeze, it is possible thereby to improve the job stability of the first ball assembly 300.And second ball 430 among second The inner peripheral surface and outer peripheral surface for radially protruding the second intermediate sleeve 470 of sleeve 470, the second inner sleeve 420 are arranged in second Between sleeve 470 inside, and be provided on the outer peripheral surface of the second inner sleeve 420 be suitable for cooperate with the second ball 430 second in Sleeve ball grooves 421 are provided with the lower spraying arm for being suitable for cooperating with the second ball 430 on the inner peripheral surface of lower spraying arm lower joint sleeve 240 Ball grooves 243, when lower spraying arm 200 is rotated relative to gushing arm seat 500, the second ball 430 and the second inner sleeve ball grooves 421, It is in rolling contact between lower spraying arm ball grooves 243, friction is small, is conducive to the stationarity for improving gushing arm rotation, and have Conducive to the noise for reducing gushing arm component 1000.

Lower spraying arm ball grooves 243, the second inner sleeve ball grooves 421 are circumferential annular groove, it is possible thereby to guarantee lower spraying arm The smoothness of 200 whole circle rotations.Lower spraying arm ball grooves 243, the second inner sleeve ball grooves 421 diameter can be with the second ball 430 diameter is equal, or can also be slightly larger than the diameter of the second ball 430, thus can guarantee the second ball 430 and lower spraying arm Ball grooves 243,421 no-float of the second inner sleeve ball grooves.

It is to be detachably connected between lower spraying arm 200 and gushing arm seat 500.

Referring to shown in Fig. 4-Fig. 6, gushing arm seat 500 includes: gushing arm seat ontology 510, and the top of gushing arm seat ontology 510 has spray Arm seat buckle 511, gushing arm seat buckle 511 are suitable for being stuck in the top of the inner sleeve of the second ball assembly 400, i.e. gushing arm seat buckles 511 are suitable for being stuck in the top of the second inner sleeve 420, are achieved in gushing arm seat buckle 511 and the fixed of the second inner sleeve 420 connects It connects.It is indirectly connected between gushing arm seat 500 and lower spraying arm 200 by the realization of the second ball assembly 400, gushing arm seat 500, lower spraying arm 200 structures that connect with 400 three of the second ball assembly are simple, stablize.

The top of gushing arm seat ontology 510 has multiple gushing arm seat grooves, the opening direction and gushing arm seat sheet of gushing arm seat groove The axis direction of body 510 is parallel, and gushing arm seat buckle 511 is upwardly extended from the bottom wall of gushing arm seat groove, and gushing arm seat buckle 511 Two sides and the two side walls of gushing arm seat groove separate, and thereby guarantee that gushing arm seat buckle 511 can occur in gushing arm seat groove Flexible deformation.The top of gushing arm seat buckle 511 is provided with the hook towards the second inner sleeve 420, and hook is suitable for hooking in second The top of sleeve 420, to limit the position to axial of gushing arm seat 500 and the second inner sleeve 420.

When assembling the second inner sleeve 420 with gushing arm seat 500, the inner peripheral surface of the second inner sleeve 420 squeezes gushing arm seat card The hook of button 511 makes gushing arm seat buckle 511 internal modifications to gushing arm seat ontology 510, guarantees that gushing arm seat buckle 511 can be from the The bottom end of two inner sleeves 420 reaches the top (i.e. from below to up) of the second inner sleeve 420, when gushing arm seat buckle 511 crosses second When the top of inner sleeve 420, extruding force suffered by gushing arm seat buckle 511 disappears, and buckles the effect of 511 own resilients in gushing arm seat Under, gushing arm seat buckle 511 is close to the second inner sleeve 420, so that hook catches on the top of the second inner sleeve 420.

When needing to separate the second inner sleeve 420 with gushing arm seat 500, firmly lower spraying arm 200 only need to be lifted up, second 420 top of inner sleeve squeezes hook and continues to lift lower spraying arm 200 so that hook is retracted in inside the second inner sleeve 420, Second inner sleeve 420 is separated with gushing arm seat 500.

The quantity of gushing arm seat buckle 511 can be multiple (such as four), and gushing arm seat groove and gushing arm seat buckle 511 are one by one It is corresponding, and multiple gushing arm seats buckle 511 being arranged circumferentially along gushing arm seat ontology 510, it is possible thereby to improve gushing arm seat buckle 511 and second inner sleeve 420 clamping stability.

Further, gushing arm seat 500 further include: gushing arm seat flange 520, gushing arm seat flange 520 is along gushing arm seat ontology 510 It extends radially outwardly, is thus conducive to the connective stability for promoting gushing arm component 1000 and internal cavity of bowl washer.Second ball assembly 400 are arranged in the top of gushing arm seat flange 520, lower spraying arm lower joint sleeve 240, the lower surface of the second ball assembly 400 and gushing arm Gap between the upper surface of seat flange 520 is L1, and L1 meets relational expression: 0mm < L1≤1mm.That is lower spraying arm lower joint sleeve 240, the gap between the second intermediate sleeve 470, the lower surface of the second inner sleeve 420 and the upper surface of gushing arm seat flange 520 is L1, L1 can be 0.3mm, 0.5mm or 0.8mm.It, can be with as a result, when lower spraying arm 200 and gushing arm seat 500 relatively rotate Avoid lower spraying arm lower joint sleeve 240, the second intermediate sleeve 470, the lower surface of the second inner sleeve 420 and gushing arm seat flange 520 It is contacted between upper surface and sliding friction occurs, and can prevent leftovers or other pollutants from entering in gap and increasing Add the frictional force even stuck lower spraying arm 200 between lower spraying arm 200 and gushing arm seat 500, when lower spraying arm 200 tilts, lower spraying arm Lower joint sleeve 240 can be contacted quickly with gushing arm seat 500, so that lower spraying arm 200 be avoided further to tilt.

Detachable connection method between gushing arm seat ontology 510 and the second inner sleeve 420 in addition to above-mentioned clamping form it Outside, it can also be connected through a screw thread.Such as in some unshowned embodiments, the second inner sleeve of the second ball assembly 400 420 have inner sleeve screw thread, and gushing arm seat 500 has gushing arm seat screw thread, and gushing arm seat screw thread is spirally connected with inner sleeve screw thread, is realized with this Gushing arm seat ontology 510 is detachably connected with the second inner sleeve 420.It, can be real when unscrewing gushing arm seat screw thread and inner sleeve screw thread The disassembly of existing gushing arm seat ontology 510 and the second inner sleeve 420.Pass through screw thread between gushing arm seat ontology 510 and the second inner sleeve 420 Connection is convenient to mount and dismount and connects reliable.

In some embodiments, as shown in figure 15, gushing arm seat 500 and the second inner sleeve 420 of the second ball assembly 400 it Between for interference fit.

In some embodiments, as shown in Figure 14 or Figure 15, lower spraying arm lower joint sleeve 240 and the second ball assembly 400 It is interference fit between second outer sleeve 410；Or

In some embodiments, as shown in fig. 9 or 10, the second outer sleeve 410 of the second ball assembly 400 has housing Cylinder screw thread, lower spraying arm lower joint sleeve 240 have screw thread under lower spraying arm, and screw thread is spirally connected with outer sleeve screw thread under lower spraying arm.Optionally, Second ball hole 450 is arranged in the top of the second intermediate sleeve 470, and the second ball hole 450 is major arc hole, and the second ball hole The second ball is formed at 450 top notch picks and places mouth 451.Second ball 430 picks and places mouth 451 through the second ball and enters the second rolling The hole of bead 450 comes out from the second ball hole 450, thereby facilitates installation of second ball 430 in the second ball hole 450 and tears open It unloads.Being predominantly located in the second ball hole 450 for each second ball 430, prevents after being installed, and the second ball 430 is from It falls off in two ball holes 450.

Optionally, the second reduction slot 460 is provided between two adjacent the second ball holes 450, second weakens in slot 460 It is provided with the second reduction slot column 461.The structure of second intermediate sleeve 470 and the first intermediate sleeve 370 can be the same.

In some unshowned embodiments, the bottom of the second intermediate sleeve 470 can also be arranged in the second ball hole 450 Portion,

Certainly, in other unshowned embodiments, the second intermediate sleeve can also be arranged in the second ball hole 450 470 middle position, at this point, the second ball hole 450 is the circular hole through 470 wall thickness of the second intermediate sleeve.In Figure 14-Figure 15 institute In the embodiment shown, the first ball assembly 300 and the second ball assembly 400 can also be using such as flowering structures:

Any of first ball assembly 300 and the second ball assembly 400 include:

The inside of outer sleeve is arranged in outer sleeve, inner sleeve, intermediate sleeve and ball, inner sleeve, and intermediate sleeve setting exists Multiple ball holes are provided between outer sleeve and inner sleeve, on intermediate sleeve, ball is mounted in ball hole, and ball is in centre The inner peripheral surface and outer peripheral surface for radially protruding intermediate sleeve of sleeve.

Specifically, the first ball assembly 300 includes: the first outer sleeve 310, the first intermediate sleeve 370, the first ball 330 and first inner sleeve 320, the first inner sleeve 320 inside of first outer sleeve 310, the setting of the first intermediate sleeve 370 are set Between the first outer sleeve 310 and the first inner sleeve 320, multiple first ball holes 350 are provided on the first intermediate sleeve 370, First ball 330 is mounted in the first ball hole 350, and the first ball 330 radially protrudes the in the first intermediate sleeve 370 The inner peripheral surface and outer peripheral surface of one intermediate sleeve 370.It is provided with and is suitable for and the first ball 330 on the outer peripheral surface of first inner sleeve 320 First inner sleeve ball grooves 321 of cooperation, the inner peripheral surface of upper gushing arm connector sleeve 130 are bonded with the outer peripheral surface of the first outer sleeve 310, It preferably, is interference fit between upper gushing arm connector sleeve 130 and the first outer sleeve 310, it is possible thereby to improve the first ball assembly 300 with the degree that is connected firmly of upper gushing arm 100.It is provided on the inner peripheral surface of first outer sleeve 310 and is suitable for matching with the first ball 330 The the first outer sleeve ball grooves 313 closed, are directly matched with the first inner sleeve 320 and the first outer sleeve 310 using the first ball 330 It closes, gushing arm connector sleeve 130 equally may be implemented and be connected with the rolling of lower spraying arm upper joint sleeve 220.First outer sleeve ball grooves 313, the first inner sleeve ball grooves 321 are circumferential annular groove, it is possible thereby to realize the whole circle of gushing arm 100 Yu lower spraying arm 200 It relatively rotates.

When upper gushing arm connector sleeve 130 relatively rotates with lower spraying arm upper joint sleeve 220, the first outer sleeve 310 and the One inner sleeve 320 realizes by the first ball 330 and relatively rotates that the frictional force between upper gushing arm 100 and lower spraying arm 200 is equivalent to Force of rolling friction is conducive to reduce hydrodynamic force loss.

At this point, the first ball assembly 300 is a whole parts, can individually supply, without to upper gushing arm connector sleeve 130 Change is made with lower spraying arm upper joint sleeve 220, the first ball assembly 300 and upper gushing arm connector sleeve 130, lower spraying arm can be completed The assembly of upper joint sleeve 220 advantageously reduces the manufacturing procedure of gushing arm component 1000.First ball assembly 300 is one independent Modular member, it is easy for assemble or unload, decrease the processing technology cost of lower spraying arm 200 or upper gushing arm 100.

Second ball assembly 400 includes: the second outer sleeve 410, the second intermediate sleeve 470, in the second ball 430 and second The inside of the second outer sleeve 410 is arranged in sleeve 420, the second inner sleeve 420, and the second intermediate sleeve 470 is arranged in the second housing Between cylinder 410 and the second inner sleeve 420, multiple second ball holes 450, the second ball 430 are provided on the second intermediate sleeve 470 It is mounted in the second ball hole 450, and the second ball 430 radially protrudes the second intermediate sleeve in the second intermediate sleeve 470 470 inner peripheral surface and outer peripheral surface.Be suitable for cooperating with the second ball 430 second is provided on the outer peripheral surface of second inner sleeve 420 Inner sleeve ball grooves 421, the inner peripheral surface of lower spraying arm lower joint sleeve 240 are bonded with the outer peripheral surface of the second outer sleeve 410, it is preferable that Be interference fit between lower spraying arm lower joint sleeve 240 and the second outer sleeve 410, it is possible thereby to improve the second ball assembly 400 with The degree that is connected firmly of lower spraying arm 200.It is provided on the inner peripheral surface of second outer sleeve 410 and is suitable for cooperating with the second ball 430 Second outer sleeve ball grooves 413 are directly cooperated with the second inner sleeve 420 and the second outer sleeve 410, together using the second ball 430 Sample may be implemented lower spraying arm lower joint sleeve 240 and be connected with the rolling of gushing arm seat ontology 510.Second outer sleeve ball grooves 413, second Inner sleeve ball grooves 421 are circumferential annular groove, it is possible thereby to realize that the whole circle of lower spraying arm 200 and gushing arm seat 500 relatively rotates.

When lower spraying arm lower joint sleeve 240 and gushing arm seat ontology 510 relatively rotate, the second outer sleeve 410 and second Inner sleeve 420 realizes by the second ball 430 and relatively rotates that the frictional force between lower spraying arm 200 and gushing arm seat 500 is equivalent to rolling Kinetic force of friction is conducive to reduce hydrodynamic force loss.

At this point, the second ball assembly 400 is a whole parts, can individually supply, without to lower spraying arm lower joint sleeve 240 and gushing arm seat ontology 510 make change, the second ball assembly 400 and lower spraying arm lower joint sleeve 240, gushing arm can be completed The assembly of seat ontology 510, advantageously reduces the manufacturing procedure of gushing arm component 1000.

The effect of first intermediate sleeve 370 and the second intermediate sleeve 470 mainly has at 3 points: (1) by each intermediate sleeve On open up ball hole, and ball is mounted in ball hole, can fix, limit the position of ball, prevent ball from accumulating；(2) Play the role of that swill is isolated, prevent the small residue of food from entering ball grooves, and causes to rub；(3) invigoration effect is played, again It can be isolated between upper gushing arm 100 and lower spraying arm 200, the vibration between lower spraying arm 200 and gushing arm seat 500, prevent gushing arm from shaking tight Weight.

Referring to shown in Fig. 9-Figure 10, in some embodiments of the utility model, lower spraying arm 200 has lower spraying arm screw thread 280, and the second ball assembly 400 includes: bearing substrate and the second ball 430, the second ball 430 is rotatably arranged in carrying The matrix screw thread cooperated with lower spraying arm screw thread 280 is provided on matrix, on bearing substrate.

According to the utility model one embodiment shown in Fig. 9, bearing substrate may include: the second outer sleeve 410, second Intermediate sleeve 470 and the second inner sleeve 420.

The the second outer sleeve ball grooves for being suitable for cooperating with the second ball 430 are provided on the inner peripheral surface of second outer sleeve 410 413, the inside of the second outer sleeve 410 is arranged in the second intermediate sleeve 470, and the second ball 430 is arranged in the second intermediate sleeve 470 On, the inside of the second intermediate sleeve 470 is arranged in the second inner sleeve 420, and is provided on the outer peripheral surface of the second inner sleeve 420 suitable In the second inner sleeve ball grooves 421 cooperated with the second ball 430, the i.e. inner surface of the second ball 430 and the second outer sleeve 410 It is in rolling contact, and is in rolling contact with the outer surface of the second inner sleeve 420.Second inner sleeve ball grooves 421, the second outer sleeve ball Slot 413 is circumferential annular groove, it is possible thereby to guarantee the smoothness of the whole circle rotation of lower spraying arm 200.In second ball 430 and second To be in rolling contact between sleeve ball grooves 421, the second outer sleeve ball grooves 413, friction is small.In a particular embodiment, Two inner sleeve ball grooves 421, the second outer sleeve ball grooves 413 diameter can be equal with the diameter of the second ball 430, Huo Zheye The diameter of the second ball 430 can be slightly larger than, thus can guarantee outside the second ball 430 and the second inner sleeve ball grooves 421, second 413 no-float of sleeve ball grooves.

Further, referring to shown in Fig. 9, in the central axial direction of lower spraying arm lower joint sleeve 240, the rolling of the second outer sleeve Pearl slot 413, the second inner sleeve ball grooves 421, the position of the second ball hole 450 are corresponding, and the second ball 430 is partially disposed at In second ball hole 450, the outside of the second ball 430 is contacted with the second outer sleeve ball grooves 413, the inside of the second ball 430 It is contacted with the second inner sleeve ball grooves 421, to complete the connection of the second outer sleeve 410 and the second inner sleeve 420.Second housing Cylinder ball grooves 413, the second inner sleeve ball grooves 421, the position of the second ball hole 450 are corresponding, can prevent 200 turns of lower spraying arm When dynamic, the rail of track and the second outer sleeve ball grooves 413 and the second inner sleeve ball grooves 421 that the second ball 430 is slided Mark is different, to be squeezed, causes lower spraying arm 200 that can not rotate.

Further, it is provided with the second inner sleeve external screw thread 422 on the outer peripheral surface of the second inner sleeve 420, gushing arm seat 500 The gushing arm seat internal screw thread 530 for being suitable for cooperating with the second inner sleeve external screw thread 422 is provided on inner peripheral surface.That is, gushing arm seat 500 are achieved a fixed connection with the second inner sleeve 420 by screw connection manner, are convenient to mount and dismount and are connected reliable.

Specifically, matrix screw thread is the second outer sleeve internal screw thread 414 being arranged on the inner peripheral surface of the second outer sleeve 410, Lower spraying arm screw thread 280 is the lower spraying arm external screw thread being arranged on the outer peripheral surface of lower spraying arm lower joint sleeve 240, and lower spraying arm external screw thread is suitable Cooperate in the second outer sleeve internal screw thread 414.That is, lower spraying arm 200 and the second outer sleeve 410 are realized by screw connection manner It is fixedly connected, is convenient to mount and dismount and connects and is reliable.

It is indirectly connected between lower spraying arm 200 and gushing arm seat 500 by the realization of the second ball assembly 400, lower spraying arm 200, spray The structure that arm seat 500 is connect with 400 three of the second ball assembly is simple, stablizes.

When lower spraying arm 200 is rotated relative to gushing arm seat 500, the second ball 430 is rolled, to make the second outer sleeve 410 relatively rotate with the second inner sleeve 420, and because lower spraying arm 200 and the second outer sleeve 410 be fixed, gushing arm seat 500 and Second inner sleeve 420 is fixed, therefore realizes the relative rotation of lower spraying arm 200 and gushing arm seat 500.

Preferably, the second inner sleeve external screw thread 422 is located at the lower section of the second inner sleeve ball grooves 421, in other words, in second Sleeve 420 and the cooperation position of lower spraying arm 200 are located above, and the fixed bit of the second inner sleeve 420 and gushing arm seat 500 is setting under Side avoids lower spraying arm 200 and 500 junction of gushing arm seat it is possible thereby to make full use of the height space of the second ball assembly 400 Axial dimension is excessive.

Multiple second ball holes 450 are provided on second intermediate sleeve 470, the second ball 430 is mounted on the second ball hole In 450, the second ball hole 450 provides support for the fixation of the second ball 430, guarantees the opposite position of multiple second balls 430 It sets constant, prevents from colliding between multiple second balls 430, squeeze, it is possible thereby to improve the work of the second ball assembly 400 Stability, so as to further increase ride comfort when gushing arm rotation.Optionally, the quantity of the second ball 430 and the second rolling The quantity in the hole of bead 450 is identical.

The quantity of second ball 430 is multiple, and multiple second balls 430 can be along the circumferential equal of the second intermediate sleeve 470 Thus even distribution can make lower spraying arm 200 and the relative rotation of gushing arm seat 500 more steady.

Second ball 430 is in inner peripheral surface and the periphery for radially protruding the second intermediate sleeve 470 of the second intermediate sleeve 470 Face is to be in rolling contact between the second ball 430 and the second outer sleeve 410, the second inner sleeve 420, and due to the second outer sleeve 410 fix with lower spraying arm lower joint sleeve 240, the second inner sleeve 420 and gushing arm seat 500 are fixed, therefore, lower spraying arm 200 and gushing arm It is indirectly connected with, is equivalent between lower spraying arm 200 and gushing arm seat 500 also as rolling by the realization of the second ball assembly 400 between seat 500 Dynamic contact, the second ball 430 provide support for the connection of lower spraying arm 200 and gushing arm seat 500.

When lower spraying arm 200 and gushing arm seat 500 relatively rotate, between the second outer sleeve 410 and the second inner sleeve 420 It is contacted by the second ball 430, therefore is rolling friction between the second outer sleeve 410 and the second inner sleeve 420.

Referring to shown in Fig. 9, the top of gushing arm seat 500 has gushing arm seat flange 520, and gushing arm seat flange 520 is along gushing arm seat 500 Extend radially outwardly, the lower section of the second outer sleeve 410, and the upper surface of gushing arm seat flange 520 is arranged in gushing arm seat flange 520 Gap between the lower surface of the second outer sleeve 410 is L2, and L2 meets relational expression: 0mm < L2≤1mm.As a result, in lower spraying arm 200 with gushing arm seat 500 when relatively rotating, can be to avoid the upper of lower surface and the gushing arm seat flange 520 of the second outer sleeve 410 It is contacted between surface and sliding friction occurs, can prevent leftovers or other pollutants from entering in gap and increasing lower spray Frictional force even stuck lower spraying arm 200 between arm 200 and gushing arm seat 500.Optionally, L2 can be 0.3mm, 0.5mm or 0.8mm。

Specifically, lower spraying arm lower joint sleeve 240 includes: connector sleeve peripheral wall 241 and connector sleeve bottom wall 242, connector sleeve bottom wall The separate lower spraying arm of connector sleeve peripheral wall 241 is arranged in 242 extending radially inwardly along connector sleeve peripheral wall 241, connector sleeve bottom wall 242 One end of ontology 230, as shown in figure 9, the lower end of connector sleeve peripheral wall 241 is arranged in connector sleeve bottom wall 242.Second inner sleeve 420 The lower section of connector sleeve bottom wall 242, the internal diameter of connector sleeve bottom wall 242 and the second inner sleeve 420 are set with the second intermediate sleeve 470 Internal diameter it is equal, when dish-washing machine water source open when, water flow flows through the second inner sleeve 420 through gushing arm seat 500 first, then flows again Enter into lower chambers 250, therefore, the internal diameter of connector sleeve bottom wall 242 is equal with the internal diameter of the second inner sleeve 420, it is ensured that under Gushing arm 200 is equal with the water velocity in the second inner sleeve 420, and the flow rate of water flow that water flow enters lower chambers 250 is stablized, to protect The stable water pressure demonstrate,proved in lower chambers 250 rises, and prevents sudden change of flow speed occur in the junction of lower spraying arm 200 and gushing arm seat 500, protects Card lower spraying arm 200 can be rotated steadily, and then guarantee that the functional reliability of gushing arm component 1000 is high.

Gap between the upper surface of second inner sleeve 420 and the lower surface of connector sleeve bottom wall 242 is L3, and L3 meets relationship Formula: 0mm < L3≤0.5mm, such as L3 can be 0.1mm, 0.2mm or 0.3mm.As a result, in lower spraying arm 200 and gushing arm seat 500 When relatively rotating, can to avoid being contacted between the upper surface and the lower surface of connector sleeve bottom wall 242 of the second inner sleeve 420 and Sliding friction occurs, that is to say, that without friction between the second inner sleeve 420 and lower spraying arm 200, in addition, the second inner sleeve 420 Gap between upper surface and the lower surface of connector sleeve bottom wall 242 is smaller, can avoid leak, be also possible to prevent leftovers or Other pollutants enter in gap and increase the even stuck lower spraying arm 200 of the frictional force between lower spraying arm 200 and gushing arm seat 500, And when lower spraying arm 200 tilt when, lower spraying arm 200 can be contacted quickly with the second inner sleeve 420, thus avoid lower spraying arm 200 into The inclination of one step.

Referring to shown in Fig. 9, the bottom of gushing arm seat 500 has the gushing arm seat water inlet extended radially inwardly along gushing arm seat 500 The internal diameter of axis 540, gushing arm seat water inlet axis 540 is equal with the internal diameter of the second inner sleeve 420.Similarly, when the water source of dish-washing machine is beaten When opening, water flow flows through the second inner sleeve 420 through gushing arm seat 500 first, therefore, in the internal diameter and second of gushing arm seat water inlet axis 540 The internal diameter of sleeve 420 is equal, it is ensured that gushing arm seat 500 is equal with the water velocity in the second inner sleeve 420, and water flow enters the The flow rate of water flow of two inner sleeves 420 is stablized, to guarantee that water enters lower chambers through the second inner sleeve 420, connector sleeve bottom wall 242 When 250, flow rate of water flow is stablized, and prevents sudden change of flow speed occur in the junction of lower spraying arm 200 and gushing arm seat 500, guarantees lower spraying arm 200 can steadily rotate.

According to the utility model another embodiment shown in Fig. 10, bearing substrate may include: the second outer sleeve 410 with And second intermediate sleeve 470.

The the second outer sleeve ball grooves for being suitable for cooperating with the second ball 430 are provided on the inner peripheral surface of second outer sleeve 410 413, the inside of the second outer sleeve 410 is arranged in the second intermediate sleeve 470, and the second intermediate sleeve 470 is arranged in gushing arm seat 500 Inside, and the gushing arm seat ball grooves 570 for being suitable for cooperating with the second ball 430 are provided on the outer peripheral surface of gushing arm seat 500.

The quantity of second ball 430 is multiple, and multiple second balls 430 can be along the circumferential equal of the second intermediate sleeve 470 Thus even distribution can make lower spraying arm 200 and the relative rotation of gushing arm seat 500 more steady.Preferably, the number of the second ball 430 Amount is even number, it is possible thereby to guarantee 400 stress equalization of the second ball assembly, alleviates stress concentration phenomenon.

Second ball 430 is in inner peripheral surface and the periphery for radially protruding the second intermediate sleeve 470 of the second intermediate sleeve 470 Face passes through second when lower spraying arm 200 relatively rotates with gushing arm seat 500 between second outer sleeve 410 and gushing arm seat 500 Ball 430 contacts, therefore is rolling friction between the second outer sleeve 410 and gushing arm seat 500.

Gushing arm seat ball grooves 570, the second outer sleeve ball grooves 413 are circumferential annular groove, it is possible thereby to guarantee lower spraying arm The smoothness of 200 whole circle rotations.It is rolling between second ball 430 and gushing arm seat ball grooves 570, the second outer sleeve ball grooves 413 Dynamic contact, friction is small.In a particular embodiment, gushing arm seat ball grooves 570, the second outer sleeve ball grooves 413 diameter can With diameter equal with the diameter of the second ball 430, or that the second ball 430 can also be slightly larger than, the second rolling thus can guarantee Pearl 430 and gushing arm seat ball grooves 570,413 no-float of the second outer sleeve ball grooves.

Further, matrix screw thread is the second outer sleeve external screw thread being arranged on the outer peripheral surface of the second outer sleeve 410 415, lower spraying arm screw thread 280 is the lower spraying arm internal screw thread being arranged on the inner peripheral surface of lower spraying arm lower joint sleeve 240, spiral shell in lower spraying arm Line is suitable for cooperating with the second outer sleeve external screw thread 415.That is, lower spraying arm 200 and the second outer sleeve 410 pass through screw connection manner It achieves a fixed connection, be convenient to mount and dismount and connect and is reliable.

Second outer sleeve 410 may include: the second outer sleeve peripheral wall 411 and the second outer sleeve bottom wall 412, the second outer sleeve The bottom of the second outer sleeve peripheral wall 411 is arranged in bottom wall 412, and the second outer sleeve bottom wall 412 is along the second outer sleeve peripheral wall 411 It extends radially inwardly, the top of the second outer sleeve bottom wall 412 is arranged in the second ball 430, as a result, the second outer sleeve bottom wall 412 Second ball 430 can be played a certain protective role, the second ball 430 is prevented to be exposed to outer and influence the second ball 430 Service life.

Second ball hole 450 is major arc hole, and forms the second ball at the bottom notch of the second ball hole 450 and pick and place mouth 451.Second ball 430 enters the second ball hole 450 through the second ball pick-and-place mouth 451 or comes out from the second ball hole 450, thus Facilitate installation and removal of second ball 430 in the second ball hole 450.

Optionally, it is provided with the second reduction slot 460 between two adjacent the second ball holes 450, it is weak by setting second Change slot 460, the rigidity between two adjacent the second ball holes 450 can be made smaller, thus when installing the second ball 430, the Two ball holes 450 are easily deformed, to reduce the installation or removal difficulty of the second ball 430.

It is provided with the second reduction slot column 461 in second reduction slot 460, optionally, the center of the second reduction slot column 461 Thus the centerline axis parallel of axis and the second intermediate sleeve 470 is conducive to the processing technology for simplifying the second intermediate sleeve 470. By setting the second reduction slot column 461, certain invigoration effect can be played, to prevent the second reduction slot 460 from excessively cutting The rigidity of weak second intermediate sleeve 470, and then be conducive to improve the functional reliability of the second ball assembly 400.

Second outer sleeve external screw thread 415 is arranged on the outer peripheral surface of the second outer sleeve peripheral wall 411, the second outer sleeve ball grooves 413 are arranged on the inner peripheral surface of the second outer sleeve peripheral wall 411, and the second outer sleeve ball grooves 413 are arranged outside the second outer sleeve The lower section of screw thread 415, the fixed bit of the second outer sleeve 410 and lower spraying arm 200 is setting in top as a result, the second outer sleeve 410 with The cooperation position of gushing arm seat 500 is located below, and thus takes full advantage of height space, prevents lower spraying arm 200 and gushing arm seat 500 from connecting The axial dimension connect at cooperation is too big.

In a particular embodiment, ball can be Plastic ball or stainless steel ball, because of the work of gushing arm component 1000 Environment is filled with water, and gushing arm component 1000 is chronically at hygrothermal environment, easily leads to ball and gets rusty clamping stagnation, Plastic ball or stainless steel The anti-corrosion capability of ball is stronger, can effectively slow down or even ball is avoided to get rusty.

Optionally, the length of upper gushing arm ontology 120 is 0.5-2 times of the length of lower spraying arm ontology 230.

Specifically, in some embodiments, the length of upper gushing arm ontology 120 is the length of lower spraying arm ontology 230 0.5-1 times, the length of upper gushing arm ontology 120 is shorter, it is possible thereby to mitigate the weight of upper gushing arm 100, to guarantee upper gushing arm 100 Can be with smooth rotation, and the structure of entire gushing arm is more stable, is not susceptible to tumble.In addition, the length of upper gushing arm ontology 120 Less than the length of lower spraying arm ontology 230, the volume in upper chamber 140 may make to be less than the volume of lower chambers 250, in cleaning rank Section, most of water flow preferentially enter in lower chambers 250, and the hydraulic pressure in lower chambers 250 is higher, it is ensured that from the first drive hole The water column pressure of 211 ejections is larger, and lower spraying arm 200 can be successfully rotated in a first direction.By by upper gushing arm ontology 120 Length is arranged shorter, can reduce the volume of upper chamber 140, thus guarantee also there is sufficiently high hydraulic pressure in upper chamber 140, into And can guarantee that the water column pressure sprayed from the second drive hole 111 is larger, biggish reverse actuating force is generated with this, is sprayed in driving Arm 100 is successfully rotated in a second direction,.

Or in some embodiments, the length of upper gushing arm ontology 120 be greater than lower spraying arm ontology 230 length, such as on The length of gushing arm ontology 120 is 1 times -2 times of the length of lower spraying arm ontology 230, it is possible thereby to increase the power of upper gushing arm ontology 120 Arm lengths, it is only necessary to which lesser driving force can drive gushing arm ontology 120 to rotate.In addition, upper gushing arm ontology 120 is longer, It is bigger to wash area, it is preferable that the length of upper gushing arm ontology 120 is equal to the length of lower spraying arm ontology 230, and upper gushing arm sheet at this time The length of body 120 and lower spraying arm ontology 230 is that dish washer interior can accommodate longest dimension, is thus conducive to improve clean ability.

The length ratio of most short gushing arm and longest gushing arm not preferably less than 0.5, because bigger drive will be needed when gushing arm is too short Power, therefore drive hole aperture is bigger or drive hole is more, and for hole for water spraying, tableware is ejected into from drive hole On water it is less, be unfavorable for cleaning, so gushing arm is unsuitable too short, therefore by the length minimum ratio of most short gushing arm and longest gushing arm It is relatively reasonable that value is set as 0.5.

As Figure 1-Figure 2, the first driving protrusion 210 is provided on lower spraying arm ontology 230, the first driving protrusion 210 is convex The surface of lower spraying arm ontology 230 out, the first drive hole 211 are formed in the first driving protrusion 210.Specifically, the first driving Protrusion 210 is arranged on the upper surface of lower spraying arm ontology 230, by the first driving of setting protrusion 210, conveniently opens up specific direction The first drive hole 211, the first drive hole 211 setting first driving protrusion 210 on, in some embodiments, first driving The direction (i.e. normal direction) in hole 211 can be parallel to the bilateral symmetry face of lower spraying arm 200, it is possible thereby to guarantee when water column is from the When spraying in one drive hole 211, generated reaction force is rotated in a first direction lower spraying arm 200.

The second driving protrusion 110 is provided on upper gushing arm ontology 120, the second driving protrusion 110 protrudes upper gushing arm ontology 120 Surface, the second drive hole 111 is formed in the second driving protrusion 110.Specifically, the second driving protrusion 110 is arranged upper On the upper surface of gushing arm ontology 120, the effect of the second driving protrusion 110 is identical as the effect of the first driving protrusion 210, and second The direction (i.e. normal direction) of drive hole 111 can be parallel to the bilateral symmetry face of gushing arm 100, effect and the first drive hole 211 is identical, and which is not described herein again, the difference is that the second drive hole 111 direction with the first drive hole 211 direction on the contrary, It is possible thereby to guarantee that generated reaction force makes gushing arm 100 along second party when water column is sprayed from the second drive hole 111 To rotation, to guarantee that upper gushing arm 100 is opposite with the rotation direction of lower spraying arm 200.

Further, the angle between the normal of the first drive hole 211 and the axis of lower spraying arm upper joint sleeve 220 be 0 °- 90 °, the angle between the normal of the second drive hole 111 and the axis of upper gushing arm connector sleeve 130 is 0 ° -90 °.

Optionally, in the same end of lower spraying arm ontology 230 and upper gushing arm ontology 120, the first drive hole 211 and the second driving Thus the direction in hole 111 is on the contrary, can guarantee that upper gushing arm 100 is opposite with the rotation direction of lower spraying arm 200.First drive hole, 211 He To be conducive to increase amount of water sprayed, while driving force can be improved to be multiple in second drive hole 111.

Optionally, the first drive hole 211 is two, and two the first drive holes 211 set up separately the two of lower spraying arm ontology 230 End, the first drive hole 211 being arranged in 230 one end of lower spraying arm ontology (such as right end) should be with setting in lower spraying arm ontology 230 The direction of first drive hole 211 of the other end (such as left end) is on the contrary, it is possible thereby to guarantee to generate from each first drive hole 211 The moment of reaction direction it is identical, thus be conducive to improve lower spraying arm 200 rotate driving power, guarantee lower spraying arm 200 turn Dynamic fast speed.

Second drive hole 111 is two, and two the second drive holes 111 set up separately in the both ends of upper gushing arm ontology 120, setting Upper 120 one end of gushing arm ontology (such as right end) the second drive hole 111 should be arranged in upper 120 other end of gushing arm ontology The direction of second drive hole 111 of (such as left end) is on the contrary, it is possible thereby to guarantee the anti-work generated from each second drive hole 111 It is identical with the direction of torque, thus be conducive to improve the rotate driving power of gushing arm 100, the velocity of rotation of gushing arm 100 in guarantee Comparatively fast.

By increasing the quantity of drive hole, the water yield in the unit time can be increased, to increase driving force.Passing through will The end of lower spraying arm ontology 230 is arranged in first drive hole 211, the end of upper gushing arm ontology 120 is arranged in the second drive hole 111 Portion, be conducive to increase the first drive hole 211, at the second drive hole 111 driving force torque arm length, in this way, it is only necessary to consumption compared with The energy of few water can drive lower spraying arm 200 and upper gushing arm 100 to rotate, therefore in a particular embodiment, the first drive hole 211 center of center, the second drive hole 111 apart from upper gushing arm ontology 120 apart from lower spraying arm ontology 230 is as far as possible Far, the end of lower spraying arm ontology 230 preferably is arranged in the first drive hole 211, the second drive hole 111 is arranged in upper gushing arm ontology 120 end, when water column is sprayed from the first drive hole 211 and the second drive hole 111, turn of lower spraying arm 200 and upper gushing arm 100 The torque that axis is subject to is larger, to guarantee the reaction force generated when spraying as much as possible using water column, improves 200 He of lower spraying arm Thus the speed that upper gushing arm 100 rotates is conducive to the cleaning effect for promoting gushing arm component 1000.

Optionally, the first driving protrusion 210 and the second driving protrusion 110 are configured to cuboid, cube, rectangular pyramid, ladder Body or cylindrical body, but it is not limited to the above structure.Fig. 1-Fig. 2, Figure 11-Figure 12 example in, first drives raised 210 Hes Second driving protrusion 110 is configured to rectangular pyramid.

First ball assembly 300 of the embodiment based on Fig. 5, Figure 14, the utility model can have various deformation mode, These modes of texturing are both fallen in the protection scope of the utility model.Implement below with reference to Fig. 5, Figure 14 to according to the utility model Multiple variation examples of first ball assembly 300 of example are summarized.

For example, the first ball assembly 300 can only include: the first ball in wherein first unshowned embodiment 330, i.e., for the embodiment compared to above-mentioned Figure 14, reduce the first intermediate sleeve 370, the first inner sleeve 320 and the first housing Cylinder 310 is directly cooperated with upper gushing arm connector sleeve 130 and lower spraying arm upper joint sleeve 220 using the first ball 330, equally can be real Now upper gushing arm connector sleeve 130 is connected with the rolling of lower spraying arm upper joint sleeve 220.At this point, on the inner peripheral surface of upper gushing arm connector sleeve 130 The upper gushing arm ball grooves for being suitable for cooperating with the first ball 330 are provided with, are provided on the outer peripheral surface of lower spraying arm upper joint sleeve 220 suitable In the lower spraying arm ball grooves cooperated with the first ball 330.

For example, the first ball assembly 300 can only include: the first ball in wherein second unshowned embodiment 330 and first inner sleeve 320 reduce the first intermediate sleeve 370 and the first housing that is, for the embodiment compared to above-mentioned Figure 14 Cylinder 310 is directly cooperated with the first inner sleeve 320 and upper gushing arm connector sleeve 130 using the first ball 330, equally be may be implemented Gushing arm connector sleeve 130 is connected with the rolling of lower spraying arm upper joint sleeve 220.At this point, being arranged on the inner peripheral surface of upper gushing arm connector sleeve 130 There are the upper gushing arm ball grooves for being suitable for cooperating with the first ball 330, is provided with and is suitable for and first on the outer peripheral surface of the first inner sleeve 320 The first inner sleeve ball grooves 321 that ball 330 cooperates.

For example, the first ball assembly 300 can only include: the first ball in the unshowned embodiment of wherein third 330 and first outer sleeve 310 reduce the first intermediate sleeve 370 and the first inner sleeve that is, for the embodiment compared to above-mentioned Figure 14 Cylinder 320 is directly cooperated with lower spraying arm upper joint sleeve 220 and the first outer sleeve 310 using the first ball 330, equally be may be implemented Upper gushing arm connector sleeve 130 is connected with the rolling of lower spraying arm upper joint sleeve 220.At this point, on the outer peripheral surface of lower spraying arm upper joint sleeve 220 Be provided with and be suitable for the lower spraying arm ball grooves that cooperates with the first ball 330, be provided on the inner peripheral surface of the first outer sleeve 310 suitable for First outer sleeve ball grooves 313 of the first ball 330 cooperation.

For example, the first ball assembly 300 can only include: the first ball in wherein the 4th unshowned embodiment 330, the first inner sleeve 320 and the first outer sleeve 310 reduce the first intermediate sleeve that is, for the embodiment compared to above-mentioned Figure 14 Cylinder 370 is directly cooperated with the first inner sleeve 320 and the first outer sleeve 310 using the first ball 330, spray equally may be implemented Arm connector sleeve 130 is connected with the rolling of lower spraying arm upper joint sleeve 220.At this point, the first outer sleeve 310 can be with upper gushing arm connector sleeve 130 interference fits, the first inner sleeve 320 can be interference fitted with lower spraying arm upper joint sleeve 220.The inner peripheral surface of first outer sleeve 310 On be provided with and be suitable for the first outer sleeve ball grooves 313 for cooperating with the first ball 330, set on the outer peripheral surface of the first inner sleeve 320 It is equipped with the first inner sleeve ball grooves 321 for being suitable for cooperating with the first ball 330.

For example, the first ball assembly 300 can only include: the first ball in wherein the 5th unshowned embodiment 330 and first intermediate sleeve 370 reduce the first inner sleeve 320 and the first housing that is, for the embodiment compared to above-mentioned Figure 14 Cylinder 310 is directly cooperated with upper gushing arm connector sleeve 130 and lower spraying arm upper joint sleeve 220 using the first ball 330, equally can be real Now upper gushing arm connector sleeve 130 is connected with the rolling of lower spraying arm upper joint sleeve 220.At this point, on the inner peripheral surface of upper gushing arm connector sleeve 130 The upper gushing arm ball grooves for being suitable for cooperating with the first ball 330 are provided with, are provided on the outer peripheral surface of lower spraying arm upper joint sleeve 220 suitable In the lower spraying arm ball grooves cooperated with the first ball 330.

For example, the first ball assembly 300 can only include: the first ball in wherein the 6th unshowned embodiment 330, the first inner sleeve 320 and the first intermediate sleeve 370 reduce the first housing that is, for the embodiment compared to above-mentioned Figure 14 Cylinder 310 is directly cooperated with the first inner sleeve 320 and upper gushing arm connector sleeve 130 using the first ball 330, equally be may be implemented Gushing arm connector sleeve 130 is connected with the rolling of lower spraying arm upper joint sleeve 220.At this point, being arranged on the inner peripheral surface of upper gushing arm connector sleeve 130 There are the upper gushing arm ball grooves for being suitable for cooperating with the first ball 330, is provided with and is suitable for and first on the outer peripheral surface of the first inner sleeve 320 The first inner sleeve ball grooves 321 that ball 330 cooperates.

For example, the first ball assembly 300 can only include: the first ball in wherein the 7th unshowned embodiment 330, the first outer sleeve 310 and the first intermediate sleeve 370 reduce the first inner sleeve that is, for the embodiment compared to above-mentioned Figure 14 Cylinder 320 is directly cooperated with lower spraying arm upper joint sleeve 220 and the first outer sleeve 310 using the first ball 330, equally be may be implemented Upper gushing arm connector sleeve 130 is connected with the rolling of lower spraying arm upper joint sleeve 220.At this point, on the outer peripheral surface of lower spraying arm upper joint sleeve 220 Be provided with and be suitable for the lower spraying arm ball grooves that cooperates with the first ball 330, be provided on the inner peripheral surface of the first outer sleeve 310 suitable for First outer sleeve ball grooves 313 of the first ball 330 cooperation.

Certainly, in some unshowned embodiments, lower spraying arm upper joint sleeve 220 can also be set in gushing arm connector sleeve 130 outside, at this point, the inside of the first ball assembly 300 and upper gushing arm connector sleeve 130 cooperate, outside the first ball assembly 300 Side and lower spraying arm upper joint sleeve 220 cooperate, and the feelings of upper 130 inside of gushing arm connector sleeve are set in for lower spraying arm upper joint sleeve 220 Condition is similar to above-mentioned seven kinds of embodiments, and which is not described herein again.

Second ball assembly 400 of the embodiment based on Fig. 5, Figure 15, the utility model can have various deformation mode, These modes of texturing are both fallen in the protection scope of the utility model.Implement below with reference to Fig. 5, Figure 15 to according to the utility model Multiple variation examples of second ball assembly 400 of example are summarized.

For example, the second ball assembly 400 can only include: the second ball in wherein first unshowned embodiment 430, i.e., for the embodiment compared to above-mentioned Figure 15, reduce the second intermediate sleeve 470, the second inner sleeve 420 and the second housing Cylinder 410 is directly cooperated with lower spraying arm lower joint sleeve 240 and gushing arm seat ontology 510 using the second ball 430, equally be may be implemented Lower spraying arm lower joint sleeve 240 is connected with the rolling of gushing arm seat ontology 510.At this point, being set on the inner peripheral surface of lower spraying arm lower joint sleeve 240 It is equipped with and is suitable for the upper gushing arm ball grooves that cooperates with the second ball 430, be provided on the outer peripheral surface of gushing arm seat ontology 510 suitable for the The lower spraying arm ball grooves of two balls 430 cooperation.

For example, the second ball assembly 400 can only include: the second ball in wherein second unshowned embodiment 430 and second inner sleeve 420 reduce the second intermediate sleeve 470 and the second housing that is, for the embodiment compared to above-mentioned Figure 15 Cylinder 410 is directly cooperated with the second inner sleeve 420 and lower spraying arm lower joint sleeve 240 using the second ball 430, equally be may be implemented Lower spraying arm lower joint sleeve 240 is connected with the rolling of gushing arm seat ontology 510.At this point, being set on the inner peripheral surface of lower spraying arm lower joint sleeve 240 It is equipped with and is suitable for the upper gushing arm ball grooves that cooperates with the second ball 430, be provided on the outer peripheral surface of the second inner sleeve 420 suitable for the Second inner sleeve ball grooves 421 of two balls 430 cooperation.

For example, the second ball assembly 400 can only include: the second ball in the unshowned embodiment of wherein third 430 and second outer sleeve 410 reduce the second intermediate sleeve 470 and the second inner sleeve that is, for the embodiment compared to above-mentioned Figure 15 Cylinder 420 is directly cooperated with gushing arm seat ontology 510 and the second outer sleeve 410 using the second ball 430, lower spray equally may be implemented Arm lower joint sleeve 240 is connected with the rolling of gushing arm seat ontology 510.It is suitable at this point, being provided on the outer peripheral surface of gushing arm seat ontology 510 With the lower spraying arm ball grooves of the second ball 430 cooperation, it is provided on the inner peripheral surface of the second outer sleeve 410 and is suitable for and the second ball Second outer sleeve ball grooves 413 of 430 cooperations.

For example, the second ball assembly 400 can only include: the second ball in wherein the 4th unshowned embodiment 430, the second inner sleeve 420 and the second outer sleeve 410 reduce the second intermediate sleeve that is, for the embodiment compared to above-mentioned Figure 15 Cylinder 470 is directly cooperated with the second inner sleeve 420 and the second outer sleeve 410 using the second ball 430, lower spray equally may be implemented Arm lower joint sleeve 240 is connected with the rolling of gushing arm seat ontology 510.At this point, the second outer sleeve 410 can be with lower spraying arm lower joint sleeve 240 interference fits, the second inner sleeve 420 can be interference fitted with gushing arm seat ontology 510.It is set on the inner peripheral surface of second outer sleeve 410 The the second outer sleeve ball grooves 413 for being suitable for cooperating with the second ball 430 are equipped with, are provided on the outer peripheral surface of the second inner sleeve 420 Suitable for the second inner sleeve ball grooves 421 cooperated with the second ball 430.

For example, the second ball assembly 400 can only include: the second ball in wherein the 5th unshowned embodiment 430 and second intermediate sleeve 470 reduce the second inner sleeve 420 and the second housing that is, for the embodiment compared to above-mentioned Figure 15 Cylinder 410 is directly cooperated with lower spraying arm lower joint sleeve 240 and gushing arm seat ontology 510 using the second ball 430, equally be may be implemented Lower spraying arm lower joint sleeve 240 is connected with the rolling of gushing arm seat ontology 510.At this point, being set on the inner peripheral surface of lower spraying arm lower joint sleeve 240 It is equipped with and is suitable for the upper gushing arm ball grooves that cooperates with the second ball 430, be provided on the outer peripheral surface of gushing arm seat ontology 510 suitable for the The lower spraying arm ball grooves of two balls 430 cooperation.

For example, the second ball assembly 400 can only include: the second ball in wherein the 6th unshowned embodiment 430, the second inner sleeve 420 and the second intermediate sleeve 470 reduce the second housing that is, for the embodiment compared to above-mentioned Figure 15 Cylinder 410 is directly cooperated with the second inner sleeve 420 and lower spraying arm lower joint sleeve 240 using the second ball 430, equally be may be implemented Lower spraying arm lower joint sleeve 240 is connected with the rolling of gushing arm seat ontology 510.At this point, being set on the inner peripheral surface of lower spraying arm lower joint sleeve 240 It is equipped with and is suitable for the upper gushing arm ball grooves that cooperates with the second ball 430, be provided on the outer peripheral surface of the second inner sleeve 420 suitable for the Second inner sleeve ball grooves 421 of two balls 430 cooperation.

For example, the second ball assembly 400 can only include: the second ball in wherein the 7th unshowned embodiment 430, the second outer sleeve 410 and the second intermediate sleeve 470 reduce the second inner sleeve that is, for the embodiment compared to above-mentioned Figure 15 Cylinder 420 is directly cooperated with gushing arm seat ontology 510 and the second outer sleeve 410 using the second ball 430, lower spray equally may be implemented Arm lower joint sleeve 240 is connected with the rolling of gushing arm seat ontology 510.It is suitable at this point, being provided on the outer peripheral surface of gushing arm seat ontology 510 With the lower spraying arm ball grooves of the second ball 430 cooperation, it is provided on the inner peripheral surface of the second outer sleeve 410 and is suitable for and the second ball Second outer sleeve ball grooves 413 of 430 cooperations.

Certainly, in some unshowned embodiments, gushing arm seat ontology 510 can also be set in lower spraying arm lower joint sleeve 240 outside, at this point, the inside of the second ball assembly 400 and lower spraying arm lower joint sleeve 240 cooperate, the second ball assembly 400 The case where outside and gushing arm seat ontology 510 cooperate, and are set in lower spraying arm 240 inside of lower joint sleeve for gushing arm seat ontology 510 with Above-mentioned seven kinds of embodiments are similar, and which is not described herein again.

It should be noted that in the present invention, the overlying relation of upper gushing arm 100 and lower spraying arm 200 is to be based on Gushing arm, which is mounted on for dish-washing machine bottom wall, to be illustrated, and certainly in some unshowned embodiments, gushing arm can also pacify On dish-washing machine roof or side wall, when gushing arm is mounted on dish-washing machine roof, upper gushing arm 100 is located under lower spraying arm 200 Side, when gushing arm is mounted on dish-washing machine side wall, upper gushing arm 100 is located at the side away from dish-washing machine side wall of lower spraying arm 200, That is no matter gushing arm is mounted on which position of dish-washing machine, upper gushing arm 100 be always located in lower spraying arm 200 towards dish-washing machine The side of internal cavities.

According to the washing electric appliance of the utility model another aspect embodiment, the gushing arm component 1000 including above-described embodiment. Washing electric appliance can be dish-washing machine, be also possible to the washing electric appliances with washing function such as fruit-vegetable cleaner, medical cleaning machine, Effect is similar with gushing arm component 1000 is arranged in the effect in dish-washing machine, no longer repeats one by one here.

Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model Inside it can make changes, modifications, alterations, and variations to the above described embodiments.

Claims

1. a kind of gushing arm component characterized by comprising

Gushing arm, the gushing arm include: lower spraying arm, upper gushing arm, and the upper gushing arm is connected with the lower spraying arm and is located at the lower spray The top of arm, the upper gushing arm can be rotated relative to the lower spraying arm, at the connection cooperation of the upper gushing arm and the lower spraying arm It is provided with the first ball assembly；

Gushing arm seat, the gushing arm are connected with the gushing arm seat, and the gushing arm can be rotated relative to the gushing arm seat；

Second ball assembly, second ball assembly are arranged at the connection cooperation of the gushing arm and the gushing arm seat.

2. gushing arm component according to claim 1, which is characterized in that the lower spraying arm include: lower spraying arm upper joint sleeve, under The upside of the lower spraying arm ontology is arranged in gushing arm ontology, the lower spraying arm upper joint sleeve, and the upper gushing arm includes: upper gushing arm sheet Body and upper gushing arm connector sleeve, the upper gushing arm connection are set on the downside of the upper gushing arm ontology, first ball assembly It is arranged at the connection cooperation of the upper gushing arm connector sleeve and the lower spraying arm upper joint sleeve.

3. gushing arm component according to claim 2, which is characterized in that first ball assembly and second ball set Part includes at least: multiple balls, multiple balls settings of first ball assembly the upper gushing arm connector sleeve with At the connection cooperation of the lower spraying arm upper joint sleeve, multiple balls of second ball assembly are arranged in the lower spraying arm At connection cooperation with the gushing arm seat.

4. gushing arm component according to claim 3, which is characterized in that first ball assembly and second ball set Part is equal further include: intermediate sleeve is provided with multiple ball holes on the intermediate sleeve, and the ball is mounted on the ball hole In, and the ball is in the inner peripheral surface and outer peripheral surface for radially protruding the intermediate sleeve of the intermediate sleeve.

5. gushing arm component according to claim 3 or 4, which is characterized in that first ball assembly and second rolling Pearl component is equal further include: inner sleeve, the inside of the ball is arranged in the inner sleeve, and sets on the outer peripheral surface of the inner sleeve It is equipped with the inner sleeve ball grooves being suitable for the ball engagement.

6. gushing arm component according to claim 5, which is characterized in that first ball assembly and second ball set Part is equal further include: outer sleeve, the outside of the ball is arranged in the outer sleeve, and is provided on the inner peripheral surface of the outer sleeve Suitable for the outer sleeve ball grooves with the ball engagement.

7. gushing arm component according to claim 3 or 4, which is characterized in that first ball assembly and second rolling Pearl component is equal further include: outer sleeve, the outside of the ball is arranged in the outer sleeve, and sets on the inner peripheral surface of the outer sleeve It is equipped with the outer sleeve ball grooves being suitable for the ball engagement.

8. gushing arm component according to claim 5, which is characterized in that be removable between the lower spraying arm and the upper gushing arm Unload connection.

9. gushing arm component according to claim 8, which is characterized in that the top of the lower spraying arm upper joint sleeve has lower spray Arm buckle, the lower spraying arm buckle are suitable for being stuck in the upper surface of the inner sleeve of first ball assembly.

10. gushing arm component according to claim 8, which is characterized in that the inner sleeve of first ball assembly has There is inner sleeve screw thread, the lower spraying arm upper joint sleeve has screw thread on lower spraying arm, screw thread and the inner sleeve on the lower spraying arm Screw thread is spirally connected.

11. gushing arm component according to claim 5, which is characterized in that the lower spraying arm upper joint sleeve and first rolling It is interference fit between the inner sleeve of pearl component.

12. gushing arm component according to claim 6, which is characterized in that the upper gushing arm connector sleeve and first ball It is interference fit between the outer sleeve of component；Or

The outer sleeve of first ball assembly has outer sleeve screw thread, and the upper gushing arm connector sleeve has upper gushing arm spiral shell Line, the upper gushing arm screw thread are spirally connected with the outer sleeve screw thread.

13. gushing arm component according to claim 5, which is characterized in that being between the lower spraying arm and the gushing arm seat can Dismantling connection.

14. gushing arm component according to claim 13, which is characterized in that the gushing arm seat includes: gushing arm seat ontology, described The top of gushing arm seat ontology is buckled with gushing arm seat, and the gushing arm seat buckle is suitable for being stuck in the described interior of second ball assembly The top of sleeve.

15. gushing arm component according to claim 13, which is characterized in that the inner sleeve of second ball assembly has There is inner sleeve screw thread, the gushing arm seat tool has gushing arm seat screw thread, and the gushing arm seat screw thread is spirally connected with the inner sleeve screw thread.

16. gushing arm component according to claim 5, which is characterized in that the gushing arm seat and second ball assembly It is interference fit between the inner sleeve.

17. gushing arm component according to claim 6, which is characterized in that the lower spraying arm lower joint sleeve and second rolling It is interference fit between the outer sleeve of pearl component；Or

The outer sleeve of second ball assembly has outer sleeve screw thread, and the lower spraying arm lower joint sleeve has under lower spraying arm Screw thread, screw thread is spirally connected with the outer sleeve screw thread under the lower spraying arm.

18. gushing arm component according to claim 2, which is characterized in that the length of the upper gushing arm ontology is the lower spray 0.5-2 times of the length of arm body.

19. a kind of washing electric appliance, which is characterized in that including gushing arm component described according to claim 1 any one of -18.