CN1552982A

CN1552982A - Lever anti-release structure of automatic washer clutch

Info

Publication number: CN1552982A
Application number: CNA03143004XA
Authority: CN
Inventors: 尹圣鲁
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2003-06-07
Filing date: 2003-06-07
Publication date: 2004-12-08

Abstract

A structure for preventing clutch lever of automatic washing machine from disengage includes a washing and dewatering tank, an agitator, a dewatering shaft, a washing shaft, a BLDC motor, a clutch motor below the external barrel, a cam engaged with driving shaft of the clutch motor, a guide lever fixed on the bearing casing, a lever driven by the said guide lever to move linearly, a linkage lever and a movable part and shaft coupler between the cam and the lever. The said lever has a groove with declined plane and a concave to limit range of its movement, and a stopping piece formed at front of the movable part. The structure of the lever and movable part can make switching quickly between washing status and dewatering status, and prevent from disengage and deformation of springs.

Description

Automatic washing machine prevents to break away from structure with the lever of clutch

Technical field

The present invention relates to a kind of automatic washing machine that washs the field, particularly relate to a kind of at washing and rinsing time operation low-speed agitator, when dehydration operation at a high speed the automatic washing machine of the new type power conduction mechanical device of the drench pit of rotation prevent to break away from structure (structure forpreventing fall off of lever in cluth for full automation type washingmachine) with the lever of clutch.

Background technology

In general, washing machine is the emulsification of utilizing washing agent, is produced the product that the rubbing action of current and percussion that agitator is added in washings are removed the dirt that adheres on the clothes by the rotation of washing oar.Washing machine is amount and a kind of utilizing the sensor washings, the automatic setting washing methods, according to the amount of washings and kind washings are provided to appropriate water level in addition after, under the control of microprocessor, wash.

The type of drive of existing automatic washing machine, be that the rotary power of CD-ROM drive motor is transmitted to wash shaft or dehydrating shaft and the mode of rotating spoon or drench pit by driving belt and pulley, and the speed by control BLDC (Brush less DC Motor) motor when washing and dehydration with sink and drench pit separately by the mode of different rotary speeies.

Recently, existing automatic washing machine is controlled the power conducting path in addition when utilizing the BLDC motor, and the low speed rotation agitator washs when washing, during dehydration agitator and drench pit high speed rotation is simultaneously dewatered.

See also shown in Fig. 1 to Fig. 4 a and Fig. 4 b, Fig. 1 controls the power conducting path in addition when utilizing the BLDC motor, when washing the low speed rotation agitator wash, during dehydration with agitator and the drench pit schematic diagram of the automatic washing machine that dewaters of rotation at a high speed simultaneously; Fig. 2 a and Fig. 2 b are the major part structure charts of the used clutch apparatus of Fig. 1 automatic washing machine; Fig. 3 is the major part assembled state schematic diagram of Fig. 2; Fig. 4 a and Fig. 4 b are the profile of Fig. 3.The above-mentioned accompanying drawing of the following reference pair automatic washing machine relevant with the present invention describes.

At first, please referring to Fig. 1, the automatic washing machine relevant with the present invention, it comprises: the sink that rotatably is arranged at outer bucket 1 inside of the body drench pit 2 of holding concurrently; Be arranged in the above-mentioned drench pit 2, can be above-mentioned relatively the agitators 3 of drench pit 2 independent rotations; (a) go up rotatable support with reference to Fig. 2, to the dehydrating shaft 5 of drench pit 2 conduction rotary powers at cartridge housing 20; Wash shaft 4 to agitator 3 conduction rotary powers; The BLDC motor 7 that after the stator 7a energising its rotor 7b is rotated; And corresponding washing flow or dewatering process flow, the clutch apparatus that can between wash shaft 4 or dehydrating shaft 5, the conduction of BLDC motor 7 power be switched.

Above-mentioned clutch apparatus, shown in Fig. 2 a and Fig. 2 b, it comprises: the clutch motor 6 that outer bucket 1 bottom is provided with; Be combined in the cam 600 of the driving shaft of above-mentioned clutch motor 6; Be fixed on the guiding lever 30 on the above-mentioned cartridge housing 20; When above-mentioned clutch motor 6 drives, guided lever 30 guiding moving linearlies, and had the lever 8 of

groove

800 and 801 lower ends, the above-mentioned inclined plane tabular surface 802 connected horizontally on inclined plane 801; Be arranged between the cam 600 and lever 8 of above-mentioned clutch motor 6, when clutch motor 6 startings, have the connecting rod 17 of above-mentioned lever 8 to clutch motor 6 one laybacks; One end is fixed on above-mentioned guiding lever 30 leading sections, and the other end is fixed in the back-moving spring 14 of giving restoring force on the hook projection 803 of above-mentioned lever 8 one sides to lever; Be against during dehydration on the groove with inclined plane 801 800 of lever 8, but when switching to washing mode along the inclined plane 801 movers 9 that drop to the hollow cylinder type of tabular surface 802 bottoms; But be arranged to along the guiding groove 900 liftable pistons 10 of the inside of above-mentioned mover 9; But the buffer spring 11 between above-mentioned mover 9 and piston 10; The bottom of being fixed in above-mentioned cartridge housing 20 possesses the shaft joint blocking-up 22 of the gear 221 that along the circumferential direction forms; Combine with hinge with a side front end of the bottom of above-mentioned piston 10, block at shaft joint support rack 220 bottoms that 22 bottoms form the middle part some use the hinge combination, when the piston lifting, be fork (fork) the shape movable rod 12 that two-handed sawing movement is made at the center with any of the middle part of above-mentioned hinge combination; With the direction of rotation of above-mentioned movable rod 12, along dehydrating shaft 5 direction liftings, the rotary power of changeable BLDC motor conduction by way of shaft coupling 15; And with the rotary power of rotor 7b assembling connector assembly 16 to wash shaft 4 conduction.

Above-mentioned clutch motor 6 is the reduction gearing that possesses by inside band gear motors (geared motor) to the driving shaft conduction power that is attached at cam 600.

Above-mentioned assembling connector assembly 16 comprises outconnector assembly 16a and female connector assembly 16b.Above-mentioned outconnector assembly 16a is attached on the resin object of rotor 7b by bolt; Above-mentioned female connector assembly 16b with at the inside of above-mentioned outconnector assembly 16a one injection molded, be formed with on the inner circumferential surface can with the sawtooth 160b of wash shaft 4 lower end teeth groove portions engagements, its upper end outer peripheral face that exposes to above-mentioned outconnector assembly 16a outside is formed with the sawtooth 161b with above-mentioned shaft coupling 15 engagements, and is to be made by metal material.

Above-mentioned female connector assembly 16b makes with the aluminium alloy sintering for improving its intensity.

The top central part of above-mentioned outconnector assembly 16a possesses the groove of annular, and above-mentioned groove is embedded in the rubber ring 18 that elastomeric material is made.

See also Fig. 3, Fig. 4 a and Fig. 4 b, but the inclined plane 801 of the corresponding lever in the upper end of above-mentioned mover form, but above-mentioned mover 9 can be done the elevating movement of vertical direction when above-mentioned lever 8 moves horizontally.

But prevent sheet 100 but have the mover disengaging of protruding on the upper end outer peripheral face of the inboard insertable piston 10 of above-mentioned mover 9 to radial direction, but outer peripheral face one side at above-mentioned mover 9, on the outer peripheral face of above-mentioned piston 10, but but be formed with the mover that can hold above-mentioned piston 10 when inner and break away from the guiding slotted hole 901 axially that prevents sheet 100 packing into as the compression spring of buffer spring 11 and above-mentioned piston 10 is pressed into mover 9.

Like this, even if because but the restoring force of above-mentioned buffer spring 11 makes mover 9 be pushed to top, but the disengaging of above-mentioned mover prevents that but the lower end of sheet 100 from also can hang over guiding slotted hole 901 bottoms of above-mentioned mover 9, but prevent the phenomenon that above-mentioned mover is broken away from by piston 10.

See also Fig. 3 and Fig. 5, but axially be formed with guiding rib 902 on the outer peripheral face of above-mentioned mover 9 with certain-length, but the medial surface of the guide portion 30a of the guiding lever 30 that above-mentioned mover 9 inserts matches with above-mentioned guiding rib 902, but above-mentioned guide portion 30a is provided with the guiding groove 30a-1 of help mover 9 moving linearlies.

Above-mentioned connecting rod 17 1 ends are connected on the cam, the other end and lever 8 combine with hinge, limit the stop projection of above-mentioned lever 8 to guiding lever 30 insertion positions when being formed with in the restoring force effect that is subjected to back-moving spring 14 with an end downside of the lever that combines 8 of above-mentioned connecting rod.

Has the compression spring 40 that shaft coupling 15 is pushed away to the bottom direction when dehydration mode is switched between the top and lower shaft spring bearing 24 of above-mentioned shaft coupling 15.

Please refer to Fig. 2 a and Fig. 4 b, shaft joint is blocked 22 lateral surfaces and is had projection 222 between the support rack 220 of above-mentioned lever 10 and shaft joint blocking-up 22, have on the movable rod 12 of the fork-shaped of above-mentioned projection 222 vertical lower and cross the connecting portion 12a that two side levers connect, when being provided with between above-mentioned projection 222 and the connecting portion 12a in dehydration in order to allow the movable rod 12 be the prolongation spring 13 that rotary power must the hour hands rotation be given at the center with locking pin 12b.

The leading section of above-mentioned movable rod 12 is just pasting the leading section of the flange part bottom surfaces of shaft coupling 15, for the power of reducing friction is processed into circle (round).

Above-mentioned piston 15 is provided with in its cylinder body upper end along the flange 152 of radial direction expansion; Above-mentioned flange 152 upper edge along the circumferential direction form be provided with can with gear 221 meshed gears 151 of above-mentioned shaft joint blocking-up 22, inner circumferential surface is provided with sawtooth 150a and the 150b that cooperates and cooperate with sawtooth 161b on the female connector assembly 16b upper end outer peripheral face of assembling connector for the sawtooth with dehydrating shaft 5.

At this moment, sawtooth 150a that forms on the body inner peripheral surface of above-mentioned shaft coupling 15 and the pitch of 150b are, with descend the fully upper end position of the female connector assembly 16b when cooperating with female connector assembly 16b tooth of above-mentioned shaft coupling 15 is benchmark, and upper side sawtooth 150a and lower side sawtooth 150b have different moduluses mutually.

That is to say that the pitch of the sawtooth that forms on the body inner peripheral surface of above-mentioned shaft coupling 15 is, the female connector assembly 16b upper end position when tooth cooperates is a benchmark, and the sawtooth 150b of its underpart has bigger modulus.

Particularly, handle the clutch that conglobate lower side sawtooth 150b makes the sawtooth of its bottom and female connector assembly 16b and be more prone to form involute contour face (involute profile surface).

The circle that can increase antitorque stress is made for the section variation that reduces extremely in the contacted place of each tooth of following and lower side sawtooth 150b that is formed at the body inner peripheral surface upper side sawtooth 150b of above-mentioned shaft coupling 15.

Dehydrating shaft 5 is different from existing dehydrating shaft, and upper axis is to be pressed into combination to the big inboard, lower shaft portion upper end of internal diameter, and the upper end of above-mentioned bottom axial region is provided with the upper axis spring bearing 23 of the upper axis that supports dehydrating shaft 5.

Below, the effect of clutch apparatus of the automatic washing machine of said structure is described.

At first, clutch motor 6 is in before the washing beginning does not have the logical closed condition that goes up power supply, and shaft coupling 15 keeps the decline state shown in Fig. 2 b and Fig. 4 b.

At this moment, but mover 9 is positioned at the groove that inclined plane 801 is arranged 800 of lever 8, and shaft coupling 15 is positioned on the declivity point.

This moment is as clutch motor 6 energisings, power supply clutch motor 6 is opened, the driving force of above-mentioned clutch motor 6 is transmitted on the cam 600 by driving shaft, because the connecting rod 17 of the bar connecting axle 601 that the rotatablely moving of above-mentioned cam 600 is connected cam just can move to clutch motor 6, is guided the guiding lever 8 of lever 30 to pull to clutch motor 6 thereupon.

At this moment, the back-moving spring 14 of above-mentioned guiding lever 30 rearward end setting prolongs.

On the one hand, but the mover 9 that contacts the inclined plane 801 of above-mentioned lever 8 during cam 600 rotation is tilted face 801 drops, and shown in Fig. 2 a and Fig. 4 a, but mover 9 is positioned at tabular surface 802 bottoms of lever 8 when cam 600 is positioned at support level.

Like this, cam 600 to holding point rotation and the lever 8 followed thereupon to the moving of clutch motor one side, but mover 9 descends thereupon, but mover 9 compression buffer springs 11, thereupon, but because the moving of above-mentioned mover 9, the piston 10 of liftable setting begins to descend in the guiding groove.

Because the decline of above-mentioned piston 10, the movable rod 12 that is connected above-mentioned piston 10 with hinge is that anticlockwise rotation on the drawing is done at the center with any locking pin 12b of the middle part of the perforation support rack 220 of the shaft joint blocking-up 22 that is fixed on cartridge housing 20 bottoms.

And movable rod 12 is when rotating in a counter-clockwise direction on the drawing of center with locking pin 12b, and the front end of above-mentioned movable rod 12 contacts with the bottom surfaces of shaft coupling 152 above-mentioned shaft coupling 15 is promoted along dehydration axial axis top.

Thereupon, finish powershift to washing mode.The gear 151 that forms on above-mentioned shaft coupling 15 upper ends shown in Fig. 2 a and Fig. 4 a, and is fixedly coupled device blocking-up 22 gears that have and matches on the bottom surfaces of above-mentioned cartridge housing 20.

Above-mentioned shaft coupling 15 be in dehydrating shaft 5 outer peripheral faces on the sawtooth mated condition time, break away from the sawtooth 161b of the female connector assembly 16b upper end that coincide on the wash shaft, so the rotary power of rotor 7b only is transmitted to agitator 3 by wash shaft 4.

When the gear 151 of above-mentioned shaft coupling 15 was in the state that cooperates with the gear of connector blocking-up 22, the rotation of shaft coupling 15 was not connected the gear institute overslaugh of device blocking-up 22.

Like this, switch to the clutch motor 6 maintenance closing state that washing mode washs.

The course of action of the clutch apparatus during below to dehydration describes.

Shown in Fig. 2 a and Fig. 4 a, after washing machine carries out washing process, require power pathway in order to dewater to dehydration mode, carry power supply power to clutch motor, above-mentioned clutch motor is driven, and cam begins rotation.

Like this, 600 rotations of the cam of clutch motor 6 are moved to dehydration location, lever 8 because of the restoring force of back-moving spring 14 away from clutch motor 6.

At this moment, but under washing mode contact at the mover 9 of the tabular surface 802 of lever 8 shown in Fig. 2 b and Fig. 4 b, reply at lever 8 and to be positioned on the time point that is on the groove 800 that lever 8 possesses inclined plane 801.

But when rising with the mover 9 that lever 8 moves, the compression stress that is added on the buffer spring 11 is alleviated, and thereupon, but the above-mentioned piston 10 that can rise along with the guiding groove 900 of mover 9 begins to rise.

With the rising of above-mentioned piston 10, the locking pin 12b that the movable rod 12 that is connected above-mentioned piston 10 with hinge supports hand frame 220 to be provided with the perforation of the shaft joint blocking-up 22 that is fixed on cartridge housing 20 bottoms is that the center is done on drawing and turned clockwise.

Like this, movable rod 12 is when rotating in a clockwise direction on the drawing of center with locking pin 12b, has then removed the front end of above-mentioned movable rod 12 and has supported the power that shaft coupling 15 pushes away along dehydration axial axis top.

Along with to the removing of the holding power of the movable rod 12 of shaft coupling 15, the gear 151 of above-mentioned shaft coupling 15 is spun off by the gear 221 of connector blocking-up 22.

And, descend fully as shaft coupling 15, shown in Fig. 2 b and Fig. 4 b, sawtooth 150a, the 150b of above-mentioned shaft coupling 15 inner peripheral surfaces respectively be combined in wash shaft on female connector assembly 16b upper end outer peripheral face on sawtooth 161b and the sawtooth of dehydrating shaft 5 bottoms cooperate separately, thereby wash shaft 4 and dewater and 5 can rotate at a high speed and dewater when rotor 7b rotates at a high speed thereupon.

At this moment, sawtooth 150b with the meshing part of female connector assembly 16b among sawtooth 150a, the 150b that forms on the inner peripheral surface of above-mentioned shaft coupling 15 has bigger modulus, and the end portion that is positioned at the sawtooth 150b of lower side is processed into circle and makes with the engagement of the sawtooth 161b of above-mentioned female connector assembly 16b and separate and be more prone to.

In the powershift process of washing mode, when entering by the position of the driving of clutch motor 6 washing shaft coupling 15 the time to washing, under the not right situation in the gear 151 meshing positions of the shaft coupling 15 of the gear 221 of corresponding connector blocking-up 22, shaft coupling affined state of 15 moments can take place.

The position of gear 151 that is to say that because shaft coupling blocking-up 22 is fixed on the cartridge housing 20, so the position of gear 221 is fixed, still, shaft coupling 15 be because can rotate with wash shaft, so can change when static.Thereupon, when the oriented washing state of meeting switched, the nose part of the gear of the nose part of the gear 151 of shaft coupling 15 and shaft coupling blocking-up 22 can occur the situation to a place, and such situation is called the moment restrained condition to shaft coupling 15.

At this moment, sawtooth on shaft coupling 15 and the female connector assembly 16b upper end outer peripheral face is in the slight state that coincide, so, 16b rotates with the female connector assembly, the tooth root of blocking 22 gear along with crown and the shaft coupling of the gear of rotation shaft coupling 15 meets, but thereby make the gear 151 of shaft coupling 15 and gear 221 engagement naturally under the impetus of the buffer spring 11 that is provided with between mover 9 and the piston 10 of shaft coupling blocking-up 22, thereby solve moment restrained condition to shaft coupling 15.

But there is following problem in the existing clutch apparatus of this said structure.

When the driving with clutch motor 6 makes cam 600 rotations, guided that lever 8 is pulled to clutch motor 6 sides under the guiding of lever 30, but the mover 9 that contacts the inclined plane 801 of above-mentioned lever 8 is tilted face institute drops, continuation rotation along with cam 600, but can be positioned at the bottom of the tabular surface 802 of lever 8 by the mover 9 that is positioned at holding point, be pulled to clutch motor 6 sides at above-mentioned lever 8 and reach under the situation more than the specified stroke, the phenomenon that back-moving spring 14 deforms or above-mentioned lever 8 is deviate from of lever 8 may occur being connected.

Fig. 5 is the schematic diagram of existing movable minor structure, and Fig. 6 is the structural representation of existing lever.When clutch motor 6 drive link 17 interlock levers 8 when pulled, be pulled to more than the specified stroke as lever 8, then can surpass the elastic limit of back-moving spring 14, occurs little distortion or above-mentioned lever 8 and deviates from, thereby make washing and the stroke that dewaters can not be finished.

In addition, assembling and during after-sale service people lever 8 is pulled out under the situation more than the specified stroke, the phenomenon that aforesaid back-moving spring distortion or lever 8 are deviate from also can take place.

This shows that above-mentioned existing automatic washing machine prevents to break away from structure with the lever of clutch and still has many defectives, and demands urgently further being improved.

In order to solve above-mentioned automatic washing machine prevents to break away from the structure existence with the lever of clutch problem, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.

Because above-mentioned existing automatic washing machine prevents to break away from the defective of structure existence with the lever of clutch, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, prevent to break away from structure in the hope of the automatic washing machine of founding a kind of new structure with the lever of clutch, can improve general existing on the market conventional automatic washing machine and prevent to break away from the structure structure, make it have more practicality with the lever of clutch.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.

Summary of the invention

Main purpose of the present invention is, overcome existing automatic washing machine prevents to break away from the structure existence with the lever of clutch defective, and the automatic washing machine that a kind of new structure is provided prevents to break away from structure with the lever of clutch, technical problem underlying to be solved is to make it in agitator or drench pit conduction rotary power, can make the switching at short notice of rotary power safety and precise, but reach the structure of mover by the lever that improves above-mentioned formation clutch, lever is not drawn out surpasses specified stroke, thereby prevent to be connected the distortion of the spring on the lever and the disengaging of above-mentioned lever.

Purpose of the present invention and solve its technical problem underlying and realize by the following technical solutions.The automatic washing machine that proposes according to the present invention prevents to break away from structure with the lever of clutch, and it comprises: a sink that the is arranged on outer bucket inside drench pit of holding concurrently; Be arranged in the above-mentioned drench pit agitator that can above-mentioned relatively drench pit independence rotary setting; Rotatable support and on bearing box to the dehydrating shaft of drench pit conduction rotary power; Wash shaft to agitator conduction rotary power; The rotating BLDC motor of stator energising its rotor of back; Be arranged on the clutch motor of outer bucket bottom; Be combined in the cam of the driving shaft of above-mentioned clutch motor; Be fixed on the guiding lever on the above-mentioned bearing box; When above-mentioned clutch motor drives, guided the lever guide moving linearly, and had the lever of groove and lower end, the above-mentioned inclined plane tabular surface connected horizontally on inclined plane; Be arranged between the cam and lever of above-mentioned clutch motor, when clutch motor is started, have the connecting rod of above-mentioned lever to clutch motor one layback; Be against during dehydration on the groove with inclined plane of lever, but when switching to washing mode, drop to smooth basifacial hollow cylinder type mover along the inclined plane; But interlock dehydrating shaft lifting during the lifting of above-mentioned mover, thus the rotary power of changeable BLDC motor to wash shaft or dehydrating shaft switch conduction by way of shaft coupling; Wherein, form the groove be provided with the displacement that limits lever on the groove on described lever band inclined plane and the tabular surface, but the front end of described mover forms in the inboard of above-mentioned groove and is provided with the sheet that stops that preventing that lever from deviating from.

The object of the invention to solve the technical problems can also adopt following technical measures further to realize.

Aforesaid automatic washing machine prevents to break away from structure with the lever of clutch, but the wherein said sheet that stops is that in the guiding rib that is cooperated by guiding groove on the medial surface of mover lateral surface guiding lever guide that form and its insertion portion 3 one prolongs and forms.

The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the present invention includes the sink drench pit of holding concurrently, agitator, dehydrating shaft to drench pit conduction rotary power, wash shaft to agitator conduction rotary power, the rotating BLDC motor of stator energising its rotor of back, be arranged on the clutch motor of outer bucket bottom, be combined in the cam of the driving shaft of above-mentioned clutch motor, be fixed on the guiding lever on the above-mentioned bearing box, guided the lever of lever guide moving linearly, be arranged at the cam of above-mentioned clutch motor and the connecting rod between the lever, but and mover and shaft coupling, form the groove be provided with the displacement that limits lever on the groove on above-mentioned lever band inclined plane and the tabular surface, but the front end of above-mentioned mover forms in the inboard of above-mentioned groove and is provided with the sheet that stops that preventing that lever from deviating from.As mentioned above, the clutch apparatus of automatic washing machine of the present invention is in agitator or drench pit conduction rotary power, can make the switching at short notice of rotary power safety and precise, but the lever by improving above-mentioned formation clutch and the structure of mover prevent the break-off of lever and the metaboly that is connected the spring on the lever.

According to the present invention, even the above power that moves of additional specified stroke on the lever, also because the groove that the displacement of above-mentioned lever is formed on the lever limits, so can effectively solve the metaboly of the back-moving spring that is connected above-mentioned lever or the phenomenon that lever is deviate from.

In sum, the automatic washing machine of special construction of the present invention prevents to break away from structure with the lever of clutch, have above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use, no matter and its structurally or bigger improvement is all arranged on the function, have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.

The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.

Description of drawings

Fig. 1 is the existing automatic washing machine generalized section relevant with the present invention.

Fig. 2 a and Fig. 2 b are the major part structure charts of the used clutch apparatus of Fig. 1.

State diagram when Fig. 2 a is washing.

State diagram when Fig. 2 b is dehydration.

Fig. 3 is the enlarged drawing of the major part of Fig. 2.

Fig. 4 a and Fig. 4 b are the profiles of Fig. 3.

State diagram when Fig. 4 a is washing.

State diagram when Fig. 4 b is dehydration.

But Fig. 5 is the mover schematic diagram of existing structure.

Fig. 6 is the lever schematic diagram of existing structure.

But Fig. 7 is the mover schematic diagram of structure of the present invention.

Fig. 8 is the lever schematic diagram of structure of the present invention.

Fig. 9 a and Fig. 9 b are the profiles of said structure user mode of the present invention.

Schematic diagram when Fig. 9 a is washing.

Schematic diagram when Fig. 9 b is dehydration

1 ... outer bucket 2 ... drench pit

3 ... agitator 4 ... wash shaft

5 ... dehydrating shaft 6 ... clutch motor

7 ... BLDC motor 7a ... stator

7b ... rotor 8 ... lever

9 ... but mover 10 ... piston

11 ... buffer spring 12 ... movable rod

12a ... linking part 12b ... steady pin

13 ... prolong spring 14 ... back-moving spring

15 ... shaft coupling 16 ... connector assembly

16a ... outconnector 16b ... female connector

17 ... connecting rod 18 ... rubber ring

20 ... cartridge housing 22 ... the shaft joint blocking-up

23 ... upper axis spring bearing 24 ... the lower shaft spring bearing

30 ... guiding lever 30a ... guide portion

40 ... compression spring 100 ... break away from and prevent sheet

150a ... sawtooth 150b ... sawtooth

151 ... gear 152 ... flange

160b ... female connector inner peripheral surface sawtooth 161b ... female connector outer peripheral face sawtooth

220 ... support rack 221 ... gear

222 ... projection 600 ... cam

601 ... bar connecting axle 800 ... groove

801 ... inclined plane 802 ... tabular surface

803 ... hook projection 805 ... stop projection

807 ... groove 900 ... guiding groove

901 ... guiding slotted hole 902 ... the guiding rib

902a ... stop sheet

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment, the automatic washing machine that foundation the present invention is proposed prevents to break away from its specific embodiment of structure, structure, feature and effect thereof with the lever of clutch, describe in detail as after.

See also shown in Fig. 7 to Fig. 9 b, but Fig. 7 is the schematic diagram of mover of the present invention, and Fig. 8 is a lever schematic diagram of the present invention, the profile of major part when Fig. 9 a and Fig. 9 b are arrangement works of the present invention, state diagram when Fig. 9 a is washing, the state diagram when Fig. 9 b is dehydration.

Automatic washing machine of the present invention prevents to break away from structure with the lever of clutch, and it mainly comprises: the rotatable sink that outer bucket 1 inside of body the is set drench pit 2 of holding concurrently; Be arranged in the above-mentioned drench pit 2, can be above-mentioned relatively the agitator 3 of settings of drench pit 2 independent rotations; Rotatable support on cartridge housing 20 is to the dehydrating shaft 5 of drench pit 2 conduction rotary powers; Wash shaft 4 to agitator 3 conduction rotary powers; To the rotating BLDC motor 7 of stator 7a energising back rotor 7b; The clutch motor 6 that outer bucket 1 bottom is provided with; Be combined in the cam 600 of the driving shaft of above-mentioned clutch motor 6; Be fixed on the guiding lever 30 on the above-mentioned cartridge housing 20; When above-mentioned clutch motor 6 drives, guided lever 30 guiding moving linearlies, and had the lever 8 of groove 800 and 801 lower ends, the above-mentioned inclined plane tabular surface 802 connected horizontally on inclined plane 801; Be arranged between the cam 600 and lever 8 of above-mentioned clutch motor 6, when clutch motor 6 startings, have the connecting rod 17 of above-mentioned lever 8 to clutch motor 6 one laybacks; Be against during dehydration on the groove with inclined plane 801 800 of lever 8, but when switching to washing mode along the inclined plane 801 movers 9 that drop to the hollow cylinder type of tabular surface 802 bottoms; But interlock is along the dehydrating shaft lifting during along the lifting of above-mentioned mover 9, thereby the rotary power of changeable BLDC motor 7 to wash shaft 4 or dehydrating shaft 5 switch conduction by way of shaft coupling 15, form the groove 807 be provided with the displacement that limits lever 8 on the groove with inclined plane 801 800 of wherein above-mentioned lever 8 and the tabular surface 802, but the front end of above-mentioned mover 9 form in the inboard of above-mentioned groove 807 be provided with prevent that lever 8 from deviating from stop sheet 902a.

The above-mentioned sheet 902a that stops is but that a prolongation in the guiding rib that is cooperated by guiding groove 30a-1 on the medial surface of mover 9 lateral surfaces guiding lever 30 guide portion 30a that form and its insertion forms.

The effect of the present invention of said structure is as follows:

When the driving with clutch motor 6 makes cam 600 rotations, guided that lever 8 is pulled to clutch motor 6 one sides under the guiding of lever 30, but the mover 9 that contacts the inclined plane 801 of above-mentioned lever 8 is tilted face institute drops, along with the continuation of cam 600 is rotated, but can be positioned at the bottom of the tabular surface 802 of lever 8 by the mover 9 that is positioned at holding point.

At this moment, according to the present invention, but above-mentioned mover 9 front ends are given prominence to the tabular surface side end that sheet 902a is positioned at the groove 807 that forms on the above-mentioned lever 8 that stops that forming.

The present invention is owing to be formed with the groove 800 on band inclined plane 801 on lever 8, and extend to above-mentioned tabular surface 802 and have the groove 807 of certain-length, and but the sheet 902a that stops of mover 9 is positioned at above-mentioned groove 807, even so more than additional specified stroke on the above-mentioned lever 8 to the pulling force of clutch motor 6 one sides, but the displacement of above-mentioned lever 8 also can be limited by the sheet 902a that stops of groove 807 and mover 9.

And then even even add the above pulling force to clutch motor 6 one sides of specified stroke on the above-mentioned lever 8, above-mentioned lever 8 can or not move to groove 807 scopes with exterior domain because of the interference effect that stops sheet 902a yet.

See also shown in Fig. 9 a and Fig. 9 b, but when dehydration mover 9 stop sheet 902a, shown in Fig. 9 b, be positioned at the groove 800 bottom surface ends of groove 807.

Afterwards, when the powershift of washing mode, shown in Fig. 9 a, because the rotation of the cam 600 and lever 8 of interlock is pulled to clutch motor 6 one sides, and on the time point that pulling is over, but mover 9 stop the end that sheet 902a is positioned at tabular surface 802 sides of groove 807.

When lever 8 is drawn, even the above power that moves of above-mentioned lever 8 additional specified strokes because the length of groove 807 fixes, but and the sheet 902a that stops of mover 9 be inserted in the above-mentioned groove 807, so lever 8 can not more move, make it be hooked on the above-mentioned sheet 902a that stops and upward keeping static.

According to the present invention, when being drawn with the drive link 17 interlock levers 8 of clutch motor 6, lever 8 be because groove 807 can only move in stroke range, and then efficiently solves the problem that can not finish because of the washing of deviating to cause of lever 8 or the stroke that dewaters.

In addition, according to the present invention, the stroke of lever 8 can not break away from the length of groove 807, so effectively alleviated the problem that back-moving spring 14 deforms.

Thereupon, under people moved lever 8 to situation more than the specified stroke, the stroke of lever 8 can not break away from the length of groove 807 as mentioned above during in assembling and to the serving from now on of product, and then prevented the phenomenon of deviating from of the distortion of above-mentioned back-moving spring 14 or lever 8.

The automatic washing machine of the present invention that above-mentioned structure like this constitutes prevents to break away from the technological innovation of structure with the lever of clutch, all has many saving graces for the technical staff of the same industry now, and the progressive that possesses skills really.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.

Claims

1, a kind of automatic washing machine prevents to break away from structure with the lever of clutch, and it comprises: be arranged on the inner sink of the outer bucket drench pit of holding concurrently; Be arranged in the above-mentioned drench pit agitator that can above-mentioned relatively drench pit independence rotary setting; Rotatable support and on bearing box to the rotating BLDC motor of wash shaft stator energising its rotor of back of the dehydration axial agitator conduction rotary power of drench pit conduction rotary power; Be arranged on the clutch motor of outer bucket bottom; Be combined in the cam of the driving shaft of above-mentioned clutch motor; Be fixed on the guiding lever on the above-mentioned bearing box; When above-mentioned clutch motor drives, guided the lever guide moving linearly, and had the lever of groove and lower end, the above-mentioned inclined plane tabular surface connected horizontally on inclined plane; Be arranged between the cam and lever of above-mentioned clutch motor, when clutch motor is started, have the connecting rod of above-mentioned lever to clutch motor one layback; Be against during dehydration on the groove with inclined plane of lever, but when switching to washing mode, drop to smooth basifacial hollow cylinder type mover along the inclined plane; But interlock dehydrating shaft lifting during the lifting of above-mentioned mover, thus the rotary power of changeable BLDC motor to wash shaft or dehydrating shaft switch conduction by way of shaft coupling; It is characterized in that: form the groove be provided with the displacement that limits lever on the groove on described lever band inclined plane and the tabular surface, but the front end of described mover forms in the inboard of above-mentioned groove and is provided with the sheet that stops that preventing that lever from deviating from.

2, automatic washing machine according to claim 1 prevents to break away from structure with the lever of clutch, but it is characterized in that the wherein said sheet that stops is that in the guiding rib that is cooperated by guiding groove on the medial surface of mover lateral surface guiding lever guide that form and its insertion portion one prolongs and forms.