CN208562892U - A kind of push-pull mechanism and electric appliance - Google Patents

Abstract

The utility model belongs to field of home appliance technology, specifically discloses a kind of push-pull mechanism and the electric appliance with the push-pull mechanism.Wherein, push-pull mechanism includes: push-and-pull executing agency, and the push-and-pull executing agency includes the pull-push piece being provided separately and push-and-pull driving assembly；Push and pull clutch, it is connect with the push-and-pull driving assembly, and the push-and-pull driving assembly can be driven to move between first position and the second position, when the push-and-pull driving assembly is in the first position, the push-and-pull driving assembly can contact with the pull-push piece and the pull-push piece is driven to move, when the push-and-pull driving assembly is in the second position, the push-and-pull driving assembly cannot be contacted with the pull-push piece.Push-pull mechanism disclosed by the utility model can make the compatible automatic switch door operation of the electric appliance with the push-pull mechanism and manual switch door operation, can improve reliability and the service life of electric operation, user experience is good.

Description

A kind of push-pull mechanism and electric appliance

Technical field

The utility model relates to field of home appliance technology more particularly to a kind of push-pull mechanisms and electric appliance.

Background technique

Indispensable life household electrical appliances of the washing machine as most of families, have and carry out to the clothings substance such as clothing, towel, coverlet The effects of washing, drying or deodorization, saves labour for user, improves the quality of the life of user.

Prior art discloses a kind of roller washing machine and its control method, roller washing machine includes shell, is set on shell There is an opening, opening is equipped with door body, and by hinge and housing hinge, the other side is fixed with gate stop for the side of door body, right on shell It answers and is equipped with groove at gate stop, further include the first driving mechanism and the second driving mechanism, the first driving mechanism can drive gate stop to remote Mobile from or close to the direction of groove, the second driving mechanism can drive door body along the direction rotation opened the door or closed the door.Wherein, first Driving mechanism includes the first rotating electric machine, gear and rack gear, and the first rotating electric machine is fixed on shell, and gear is arranged and first On the output shaft of rotating electric machine, rack gear is set on gate stop, and the rotation of the first rotating electric machine can be rotated with moving gear, and gear rotation drives Rack gear is mobile to the direction close to or far from groove, to drive gate stop mobile to the direction close to or far from groove.

The roller washing machine that the prior art provides, though automatic door opening and the shutdown of washing machine can be realized to a certain extent, When door body is in close state, wheel and rack is in meshing state, at this point, if user wants to open door body manually, due to Wheel and rack is in meshing state, can to user open door body cause to hinder, reduce the usage experience of user, and if user it is strong System is opened, then the non-engagement relative motion between gear and rack gear will lead to phenomena such as gear and rack gear are worn, influence gear and The precision and stationarity of rack gear engaged transmission；When door body is in the open state, when being used to want that door body is turned off manually, door body The rotation of around hinge axis, after door body shutdown turns to certain position, gear can be contacted with rack gear, and door body is hindered to continue to close, Influence the operation closed the door manually of user, and if user using forcibly closing equally gear and rack gear can be caused to damage, influence to use The usage experience at family, the reliability of reducing mechanism and service life

Utility model content

One of the utility model is designed to provide a kind of push-pull mechanism, makes the switch door equipment for driving the push-pull mechanism Both automation switch gate movement can be carried out, the movement of manual switch door can also be carried out by user, improve the usage experience of user, And improve push-pull mechanism reliability of operation and service life.

The another object of the utility model is to provide a kind of electric appliance, and the electric appliance is allow to be compatible with automatic opening and closing door and manually The execution of switch gate improves the convenience of electric switch door and reliability and the service life of electric switch door gear.

To achieve the above object, the utility model adopts the following technical solutions:

A kind of push-pull mechanism, comprising:

Executing agency is pushed and pulled, the push-and-pull executing agency includes the pull-push piece being provided separately and push-and-pull driving assembly；

Clutch is pushed and pulled, is connect with the push-and-pull driving assembly, and the push-and-pull driving assembly can be driven at first It sets and is moved between the second position, when the push-and-pull driving assembly is in the first position, the push-and-pull driving assembly can be with The pull-push piece contacts and the pull-push piece is driven to move, when the push-and-pull driving assembly is in the second position, the push-and-pull Driving assembly cannot be contacted with the pull-push piece.

Further, the push-and-pull clutch includes:

Box body is slided, is connect with the push-and-pull driving assembly；

Clutch driving assembly is connect with the sliding box body, and the sliding box body can be driven mobile.

Further, the clutch driving assembly includes:

Clutch exports rack gear；

Clutch driving motor；

Clutch gear group, the output axis connection of one end and the clutch driving motor, the other end and the clutch output gear Item engagement, the clutch gear group are fixedly connected with one in clutch output rack gear with the sliding box body.

Further, the clutch driving motor is fixedly connected with the sliding box body with the clutch gear group, institute Sliding box body is stated to be slidably connected with clutch output rack gear.

Further, the push-and-pull clutch further include:

Fixed bin body, the sliding box body are slidably connected in the fixed bin body, clutch output rack gear with it is described Fixed bin body connection.

Further, the clutch output rack gear is slidably connected with the fixed bin body, and the clutch output rack gear is separate One end of the push-and-pull driving assembly is connected with one end of the first elastic element, the other end of first elastic element with it is described The telescopic direction of fixed bin body connection, first elastic element is identical as the clutch output length direction of rack gear.

Further, the clutch gear group includes:

Clutch worm screw, the output axis connection with the clutch driving motor；

First clutch gear is engaged with the clutch worm screw；

Second clutch gear is engaged with first clutch gear and clutch output rack gear respectively.

Further, the push-and-pull clutch further includes being disengaged component, and the component that is disengaged includes:

Pressing plate is locked, the lock pressing plate includes the first plate and the second plate interconnected, first plate and second plate With default angle, the lower surface of first plate is abutted with first clutch gear upper surface, first plate with it is described The junction of second plate and the sliding box body are rotatablely connected；

Second elastic element, one end are connect with the lower end of first clutch gear, the other end and the sliding box body Bottom plate connection；

Drawstring, one end are connect with second plate, and the other end stretches out the outside of the sliding box body.

Further, the push-and-pull driving assembly includes:

Output is pushed and pulled, can be connect with the pull-push piece and drives the pull-push piece mobile；

Driving motor is pushed and pulled, output shaft is connect with the push-and-pull output, and the push-and-pull output can be driven to rotate.

Further, the push-and-pull output is push-and-pull worm screw, and the pull-push piece is snail master bar；

Or, the push-and-pull output is screw rod, the pull-push piece is deformation nut.

A kind of electric appliance, including door body and shell, the side of the door body are connect with the housing hinge, which is characterized in that Comprising push-pull mechanism as described above, the other side of the door body, the push-and-pull driving assembly and institute is arranged in the pull-push piece Push-and-pull clutch is stated to be respectively provided on the housing.

Further, the inside of the shell is arranged in the push-and-pull driving assembly and the push-and-pull clutch, described The position that shell corresponds to the pull-push piece offers push-and-pull perforation.

The utility model has the beneficial effects that:

Push-pull mechanism and electric appliance provided by the utility model, since the push-and-pull driving assembly in push-pull mechanism has first Set and the second position, at first position, push-and-pull driving assembly can connect with pull-push piece and drive door body edge close to or far from The direction of shell moves, to realize that automatic switch for electric device door acts；At the second position, push-and-pull driving assembly cannot with push away Draw piece contact, thus pull-push piece and push-and-pull driving assembly setting will not to user manual switch door movement hinder, together When will not be acted because of the manual switch door of user and cause collision etc. to influence push-pull mechanism, make with this kind of push-pull mechanism Electric appliance can be compatible with the execution of automatic opening and closing door and the manual switch gate of user, meanwhile, improve push-pull mechanism operational reliability and Service life.

Detailed description of the invention

Fig. 1 is that electric appliance provided by the embodiment of the utility model is in the structural schematic diagram under shutdown state；

Fig. 2 is that electric appliance provided by the embodiment of the utility model is in the structural schematic diagram under door opening state；

Fig. 3 is the structural schematic diagram on the inside of casing for electric appliances provided by the embodiment of the utility model；

Fig. 4 is the fractionation structural representation of push-pull mechanism provided by the embodiment of the utility model；

Fig. 5 is structural schematic diagram when push-pull mechanism provided by the embodiment of the utility model is in first position；

Fig. 6 is the structural schematic diagram provided by the embodiment of the utility model for being disengaged component.

1- shell；11- opening；

2- door body；

3- door lock；

4- pushes and pulls executing agency；41- pull-push piece；42- pushes and pulls driving assembly；421- pushes and pulls driving motor；422- push-and-pull is defeated Part out；423- pushes and pulls worm screw；424- pushes and pulls transmission gear；43- pushes and pulls output gear；44- mounting plate；

5- pushes and pulls clutch；51- slides box body；511- evacuation opening；52- fixed bin body；53- clutch driving assembly； 531- clutch driving motor；532- clutch worm screw；The first clutch gear of 533-；The second clutch gear of 534-；535- clutch output Rack gear；The first elastic element of 536-；54- is disengaged component；541- drawstring；542- locks pressing plate；The second elastic element of 543-；544- Limited post；545- rotation axis；546- connecting bracket；55- master control borad；56- lid；

The first limit assembly of 61-；The first limited block of 611-；The first limit switch of 612-；The second limit assembly of 62-；621- Second limited block；The second limit switch of 622-；63- third limit switch；

7- rotating mechanism.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.

Fig. 1 is that electric appliance provided in this embodiment is in the structural schematic diagram under shutdown state, and Fig. 2 is provided in this embodiment Electric appliance is in the structural schematic diagram under door opening state, as depicted in figs. 1 and 2, present embodiments provides a kind of electric appliance, including shell 1, the side of shell 1 is provided with opening 11；Door body 2, one side are rotatablely connected by door hinge axis 21 and shell 1, and can opposite shell The rotation of body 1 is with opening and closing of fault opening 11；Side of the door body 2 far from door hinge axis 21 is arranged in, for making door body 2 and shell in door lock 3 Body 1 is relatively sealed；Rotating mechanism 7 is connect with the door hinge axis 21, and door body 2 can be driven to turn around the axis of the door hinge axis 21 It is dynamic；Push-pull mechanism acts on door body 2, and door body 2 can be made to overcome enabling or the shutdown resistance of door lock 3, and assisted rotating mechanism 7 carries out The automatic door opening of door body 2 and shutdown movement.

In the present embodiment, the detailed description of push-pull mechanism is carried out so that electric appliance is washing machine as an example, in other embodiments, Electric appliance can also be other equipment with switch gate function, such as dryer, dish-washing machine.

Push-pull mechanism includes push-and-pull executing agency 4 and push-and-pull clutch 5.Pushing and pulling executing agency 4 includes being arranged in door body 2 On pull-push piece 41 and the push-and-pull driving assembly 42 that is arranged on shell 1, push-and-pull driving assembly 42 can drive pull-push piece 41 to It is moved far from shell 1 or close to the direction of shell 1, realizes the automatic opening and closing door movement of washing machine.In the use process of washing machine In, user according to circumstances can voluntarily select washing machine automatic opening and closing door or manual switch door, to avoid pushing away in push-and-pull executing agency 4 Draw piece 41 influences the execution of manual switch door with the contact of push-and-pull driving assembly 42, reduces the usage experience of user, the present embodiment In, push-and-pull clutch 5 is additionally provided on washing machine shell 1, push-and-pull clutch 5 is connect with push-and-pull driving assembly 42, and energy Push-and-pull driving assembly 42 is driven to slide between the first position and the second position of shell 1, when push-and-pull driving assembly 42 is located at first When position, push-and-pull driving assembly 42 can be contacted with pull-push piece 41, and pull-push piece 41 is driven to transport towards or away from the direction of shell 1 It is dynamic；When push-and-pull driving assembly 42 is located at the second position, push-and-pull driving assembly 42 is not contacted with pull-push piece 41, facilitates user manual The switch gate movement for carrying out washing machine, without the interference by push-and-pull executing agency 4.

In the present embodiment, when user needs washing machine to execute automatic opening and closing door movement, the push-and-pull drive of clutch 5 is pushed away It draws driving assembly 42 to first position, contacts push-and-pull driving assembly 42 with pull-push piece 41 and pull-push piece 41 is driven to move；When certainly After dynamic switch gate movement is finished, push-and-pull clutch 5 drives push-and-pull driving assembly 42 to return back to the second position, push-and-pull driving Component 42 is not generated with pull-push piece 41 and is contacted, so that the setting for pushing and pulling driving assembly 42 and pull-push piece 41 will not be to the manual of user Switch gate causes to interfere.Therefore, washing machine provided by the embodiment can be compatible with washing machine automatic opening and closing door and user's manual switch The execution of door, user experience are good；And the manual switch gate of user is avoided in the process to collision caused by push-and-pull executing agency 4 or mill Damage improves the service life and operation stability, accuracy of push-and-pull executing agency 4.Meanwhile push-and-pull provided in this embodiment is held Row mechanism 4 is separated with door lock 3, will not be caused to interfere to the original structure of door lock 3, be ensure that the safety of 3 structure of door lock.

In the present embodiment, drive clutch driving assembly 53 in the first position of shell 1 by setting push-and-pull clutch 5 It is slided between the second position, in other embodiments, can make to push and pull driving assembly 42 and pull-push piece 41 using other modes Separation can such as make to push and pull driving assembly 42 relative to the rotation of shell 1, so that push-and-pull driving assembly 42 is located at or separate and pull-push piece The position of 41 contacts；Or, it is fixed with respect to shell 1 to make to push and pull driving assembly 42, pull-push piece 41 is made to slide or turn with respect to door body 2 It is dynamic, so that pull-push piece 41 is located at the third place that pull-push piece 41 can be made to contact with push-and-pull driving assembly 42 and pull-push piece 41 can be made and driven It is moved between dynamic discontiguous 4th position of component.In other embodiments, pull-push piece 41 can also be arranged on shell 1, it will It pushes and pulls driving assembly 42 to be arranged in door body 2, makes one of them door body 2 connected to it or shell 1 that there is first position or the Two positions.

Fig. 3 is the structural schematic diagram of 1 inside of washing machine shell provided in this embodiment, as shown in Figures 2 and 3, this implementation Side of the shell 1 far from door body 2 is arranged in the push-pull mechanism that example provides, and is conducive to provide enough skies for the arrangement of push-pull mechanism Between, it avoids that the problems such as 1 thickness of shell caused by push-pull mechanism increases is arranged on the outside of shell 1, while improving washing machine entirety Performance attractive in appearance.The position that shell 1 corresponds to pull-push piece 41 offers push-and-pull perforation, and push-and-pull perforation runs through 1 surfaces externally and internally of shell, pushes away Draw piece 41 can pass through push-and-pull perforation and contact with push-and-pull driving assembly 42.

In the present embodiment, the inner surface of shell 1 refers to one side of the shell 1 towards washing machine internal, and the outer surface of shell 1 is One side of the shell 1 towards door body 2.Similarly, the inside of door body 2 refers to side of the door body 2 towards washing machine internal, the outside of door body 2 Refer to door body 2 far from the side outside washing machine.

Specifically, Fig. 4 is the fractionation structural representation of push-pull mechanism provided in this embodiment, as shown in figure 4, push-and-pull clutch Mechanism 5 includes fixed bin body 52, sliding box body 51 and clutch driving assembly 53, and fixed bin body 52 and 1 inner surface of shell, which are fixed, to be connected It connects, connection type can be the detachable connection methods such as threaded connection, facilitate the maintenance and replacement of push-pull mechanism.Slide box body 51 It is arranged inside fixed bin body 52, and the sliding of box body 52 can be fixed relatively, it such as can be in 52 upper surface of fixed bin body along sliding box body Sliding rail is arranged in 51 glide direction, and sliding slot is arranged on slider case 1；Or sliding slot is set on fixed bin body 52, in Slide Box Sliding rail etc. is set on body 51, can also no longer be repeated using other slip connection modes, the present embodiment.Slide box body 51 Upper setting is slided box body 51 and lid 56 is surrounded and is formed with accommodation space by lid 56, push and pull driving assembly 42 and push and pull from At least partly structure for closing mechanism 5 is located in accommodation space, protects conducive to the part in push-pull mechanism, slides box body 51 The detachable connection methods such as screw, clamping are used with lid 56, facilitate the installation, maintenance and replacement of components in push-pull mechanism. The mounting plate for installing connection push-and-pull driving assembly 42 is provided between sliding box body 51 and lid 56, and for control to be arranged The master control borad 55 of circuit processed.

Clutch driving assembly 53 is connect with sliding box body 51, and the setting of push-and-pull driving assembly 42 is being slided inside box body 51, from Driving assembly 53 is closed by driving sliding box body 51 to slide, the movement of push-and-pull driving assembly 42 being located inside sliding box body 51 is made to exist It is moved between first position and the second position.

Fig. 5 is structural schematic diagram when push-pull mechanism provided in this embodiment is in first position, in conjunction with Fig. 4 and Fig. 5 institute Show, clutch driving assembly 53 includes clutch output rack gear 535, clutch driving motor 531 and clutch gear group.Clutch driving motor 531 and clutch gear group be fixed in slider case 1, clutch export rack gear 535 along push-and-pull driving assembly 42 the direction of motion set It sets, and can opposite sliding box body 51 sliding.

Clutch gear group, including clutch worm screw 532, the first clutch gear 533 and the second clutch gear 534.Clutch worm screw 532 fixations are set on the output shaft of clutch driving motor 531, and the first clutch gear 533 includes the clutch being coaxially disposed up and down Worm gear and clutch gear, clutch worm gear are engaged with clutch worm screw 532, and clutch gear is engaged with the second clutch gear 534.Second from Conjunction gear 534 is duplicate gear, and one in duplicate gear is engaged with clutch gear, another is nibbled with clutch output rack gear 535 It closes.The position of the corresponding clutch output rack gear 535 of sliding box body 51 offers evacuation opening 511, and clutch output rack gear 535 is by keeping away Opening 511 is allowed to connect with the cassette bottom of fixed bin body 52.

When clutch driving motor 531 is opened, the output shaft of clutch driving motor 531 drives clutch worm screw 532 to rotate, and makes First clutch gear 533 and the rotation of the second clutch gear 534.Due to clutch driving motor 531 and clutch gear component and sliding Box body 51 connects, and clutch output rack gear 535 is connect with fixed bin body 52, the second clutch gear 534 and clutch output rack gear 535 Engagement moves the second clutch gear 534 along the length direction of clutch output rack gear 535, so that sliding box body 51 is driven to move, Make sliding box body 51 that push-and-pull driving assembly 42 be driven to move between first position and the second position.

In the present embodiment, when clutch driving motor 531 rotates in the forward direction, push-and-pull clutch 5 drives push-and-pull driving group Part 42 is moved from the second position to the mobile direction in first position；When clutch driving motor 531 reversely rotates, clutch is pushed and pulled Structure 5 drives push-and-pull driving assembly 42 to move from first position to the direction of the second position, so that push-and-pull driving assembly 42 be driven to transport It is dynamic.In other embodiments, when clutch driving motor 531 rotates and reverse, the direction of motion of sliding box body 51 can be with this reality The setting for applying example is opposite.

In the present embodiment, by clutch driving motor 531 and the setting of clutch gear group on sliding box body 51, clutch is defeated Rack gear 535 is arranged on fixed bin body 52 out, in other embodiments, can also be by clutch driving motor 531 and clutch gear Group is arranged on fixed bin body 52, by clutch output rack gear 535 setting on sliding box body 51.

In the present embodiment, the band in such a way that clutch driving motor 531, clutch gear group and clutch export rack gear 535 Dynamic sliding box body 51 rotate relative to fixed box body 52, make the structure of push-and-pull clutch 5 simply, small volume, it is easy to control and Cost is relatively low.In other embodiments, the side that the relatively fixed box body 52 of sliding box body 51 can also can be driven to slide using other Formula, such as electromagnetic drive, motor drive feed screw nut driving.

In the present embodiment, sliding box body 51 is arranged inside fixed bin body 52, and pushes and pulls driving assembly 42 and push-and-pull Clutch 5 is arranged inside fixed bin body 52, is conducive to the integral installation, maintenance and replacement of push-pull mechanism, reduces push-and-pull Connecting interface of the mechanism on shell 1.In other embodiments, the fixed part for pushing and pulling clutch 5 can also be directly arranged On shell 1, moving portion setting is on sliding box body 51 or sliding panel.

As shown in figure 5, push-and-pull driving assembly 42 includes push-and-pull output 422, push-and-pull driving motor 421 and push-and-pull gear Group.Pushing and pulling gear set includes push-and-pull worm screw 423 and push-and-pull transmission gear 424, and push-and-pull transmission gear 424 includes pushing away for coaxial arrangement Draw worm gear and push-and-pull gear.Push-and-pull worm screw 423 is set on push-and-pull driving motor 421, and push-and-pull worm gear is nibbled with push-and-pull worm screw 423 It closes.It pushes and pulls fixing sleeve in the rotation axis 545 of output 422 and is equipped with push-and-pull output gear 43, push-and-pull output gear 43 and push-and-pull tooth Wheel engagement.

In the present embodiment, push-and-pull output 422 is worm screw, and pull-push piece 41 is snail master bar, when snail master bar is contacted with worm screw When, worm screw engages with snail master bar, and push-and-pull driving motor 421 is by push-and-pull gear set drive worm screw rotation, to drive snail master bar It is moved to the direction close to or far from shell 1.

In the present embodiment, when push-and-pull driving motor 421 rotates forward, worm screw drives snail master bar to transport to the direction close to shell 1 It is dynamic；When pushing and pulling the reversion of driving motor 421, worm screw drives snail master bar to move to the direction far from shell 1.In other embodiments In, when push-and-pull driving motor 421 rotates and reverse, the movement of snail master bar can be arranged contrary with the present embodiment.

In the present embodiment, push-and-pull output 422 is worm screw, and pull-push piece 41 is snail master bar, and snail master bar is preferably rectangular teeth, Can reduce the radial force in snail master bar transmission process, increase the axial thrust of worm screw snail master bar transmission, improve transmission efficiency and Stationarity.In other embodiments, push-and-pull output 422 can be screw rod, and pull-push piece 41 is deformation nut, and deformation nut is The nut of 1/2-1/5 is circumferentially taken along long nut and nut strip that expansion obtains.When push-and-pull driving motor 421 drives screw rod rotation When, the screw-driven of screw rod and deformation nut is moved with dynamic deformation nut to the direction close to or far from shell 1.

It can make pull-push piece 41 that there is enough drive lengths using snail master bar or deformation nut, and can easily protrude into and push away It pulls through hole to engage with worm screw or be spirally connected with screw rod, is conducive to push-pull mechanism is arranged in 1 inside of shell, reduces 1 outside zero of shell The number of component simplifies the structure design at door body 2 and corresponding housing 1, closes door body 2 and easy to open, and outside washing machine Shape is beautiful.In other embodiments, pushing and pulling output 422 and pull-push piece 41 can also be other mutual cooperations, and rotation is transported Turn turns to the kinematic pair of linear motion.

In the present embodiment, for convenience of the engagement of pull-push piece 41 and push-and-pull output 422, on shell 1 on be provided with push-and-pull Perforation, pull-push piece 41 can be protruded into push-and-pull perforation and be engaged with push-and-pull output 422, meanwhile, push-and-pull output 422, which partially protrudes into, to be pushed away It pulls through in hole, to reduce the length of the needs of pull-push piece 41.Since push-and-pull output 422 shell 1 can move relatively, push-and-pull perforation Width should be greater than the operation stroke of push-and-pull output 422, be pushed away to will lead to size of the push-and-pull perforation on shell 1 and be greater than The size of draw piece 41.The position of the corresponding push-and-pull perforation in 1 outer surface of shell is provided with cover board, and for covering push-and-pull perforation, raising is washed The performance attractive in appearance and waterproof and dustproof performance of clothing machine, cover board correspond to the position that pull-push piece 41 protrudes into and offer push-and-pull hole.

In the present embodiment, push-and-pull driving motor 421 passes through worm screw, push-and-pull transmission gear 424 and push-and-pull output gear 43 It transmits to push-and-pull output 422 and transmits revolving speed and torque, in other embodiments, push-and-pull driving motor 421 can also be by other Driving form carry out revolving speed and torque transmitting, Multi-stage transmission gear such as can be set, can also using push-and-pull driving motor 421 are directly connected to the shaft of push-and-pull output 422.Specific transmission gear series and connection type should turn according to required transmitting The model of speed, torque and push-and-pull driving motor 421 is specifically determined.

In the present embodiment, rotated using motor driven push-and-pull output 422, structure is simple, easy to control, cost compared with It is low, it in other embodiments, can also be using the form of other push-and-pull driving assemblies 42.

When clutch drives push-and-pull output 422 and pull-push piece 41 to contact, initial contact location is not necessarily engaged Position, supplemented by boosting draw output 422 engaged with going on smoothly for pull-push piece 41, clutch export rack gear 535 be mounted slidably On fixed bin body 52, and 535 ground length direction of rack gear can be exported along clutch and moved.And clutch output rack gear 535 is far from push-and-pull One end of driving assembly 42 is connected with one end of the first elastic element 536, the other end and fixed bin body of the first elastic element 536 The telescopic direction of 52 connections, the first elastic element 536 is identical as the clutch output setting direction of rack gear 535.

Due to being provided with the first elastic element 536, and it is slidably arranged in clutch output rack gear 535 on fixed bin body 52, When push-and-pull output 422 and pull-push piece 41 are under tooth top and peak contact state, the rotation of clutch driving motor 531 can not band Dynamic sliding box body 51 continues to slide, and the engaged transmission of the second clutch gear 534 and clutch output rack gear 535 makes clutch export rack gear 535 move to the direction far from push-and-pull driving assembly 42, the compression of the first elastic element 536.Meanwhile pushing and pulling driving motor 421 Rotation drive push-and-pull output 422 rotate, when push and pull output 422 turn to certain position when, push-and-pull output 422 be located at The position that pull-push piece 41 engages.Box body 51 is slided in the resilient force and clutch driving motor 531 of first elastic element 536 It drives lower slider and push-and-pull output 422 is driven to engage in place with pull-push piece 41.Clutch driving motor 531 continues to rotate, sliding Box body 51 does not slide, and clutch exports rack gear 535 and moves along the direction far from push-and-pull driving assembly 42, and the first elastic original part continues to press Contracting, when the relatively fixed shell 1 of clutch output rack gear 535 is located at setting position, clutch driving motor 531 stops operating.

It is controlled for the operation to push-and-pull driving assembly 42 and push-and-pull clutch 5, push-and-pull machine provided in this embodiment Structure further includes the first limit assembly 61 and the second limit assembly 62.First limit assembly 61 includes the first limited block 611 and first One end that clutch output rack gear 535 connects the first elastic element 536, sliding is arranged in limit switch 612, the first limited block 611 Master control borad 55 is provided between box body 51 and lid 56, master control borad 55 is fixedly connected with sliding box body 51, the first limit switch 612 It is arranged on master control borad 55.When the relatively fixed box body 52 of clutch output rack gear 535 is transported along the direction far from push-and-pull driving assembly 42 When dynamic, the first limit switch 612 can be triggered by the first limited block 611.

Second limit assembly 62 includes the second limited block 621 and the second limit switch 622, and the setting of the second limited block 621 exists On fixed bin body 52, and it is located at clutch and exports the one end of rack gear 535 far from the first elastic element 536, the second limit switch 622 is set It sets on master control borad 55, when the relatively fixed box body 52 of sliding box body 51 is moved from first position to the second position, the second limit Switch 622 can be triggered by the second limited block 621.

Meanwhile second limited block 621 the clutch output one end of rack gear 535 far from the first elastic element 536 is set, when the When one elastic element 536 is in nature elongation, the end face of clutch output rack gear 535 is abutted with the second limited block 621, that is, second Limited block 621 limits clutch output rack gear 535 and can only move with respect to its initial position along the direction far from push-and-pull driving assembly 42, Improve the precise control to clutch output 535 motion state of rack gear.

In the present embodiment, the second limited block 621 plays limitation clutch output rack gear 535 simultaneously and is only capable of along the first bullet of compression Property element 536 direction movement or reply, in other embodiments, the second limited block 621 can only with the second limit switch 622 Cooperation limit, while separately setting limit element limits the traffic direction of clutch output rack gear 535.

In the present embodiment, to realize that the cooperation of rotating mechanism 7 and push-pull mechanism is run, push-and-pull machine provided in this embodiment Structure further includes third limit assembly, and third limit assembly includes that master control borad 55 is arranged in close to the of push-and-pull 422 one end of output Three limit switches 63 and third limited block, third limited block are arranged on shell 1 or fixed bin body 52, and door body 2 is with respect to shell When body 1 is in the position of closing in place, third limit switch 63 is triggered by third limited block, so as to be opened according to third limit Close the closing of 63 state control push-and-pull driving motor 421 and the starting opportunity of clutch driving mechanism.

In the present embodiment, the first limit switch 612, the second limit switch 622 and third limit switch 63 can be machine Tool formula limit switch, or photo-electric inductive switch, such as close switch.First limited block 611, the second limited block 621 And the structure design of third limited block should specifically be designed based on the type of the first limit switch 612 and the second limit switch 622.

In the present embodiment, to improve the control action to washing machine automatic opening and closing door, washing machine includes control assembly, control Component processed includes master control borad 55 and information communication module, the first limit switch 612, the second limit switch 622 and third limit Switch 63 and information communication module are connect with master control borad 55, the first limit switch 612, the second limit switch 622 and third limit The signal that bit switch 63 triggers is transferred in master control borad 55, carries out reception processing by master control borad 55, to control clutch driving electricity The operating status of machine 531 and push-and-pull driving motor 421；Information communication module can receive the action command of user and be transferred to master Plate 55 is controlled, master control borad 55 controls the corresponding enabling of washing machine execution according to action command or shutdown acts.

In the present embodiment, information communication module can be voice announcer, receive the phonetic order of user；Or Control button, can also connect the mobile terminal of user through wireless communication, and user is sent by mobile terminal remote It instructs to information communication module.The action command how the present embodiment receives user to information communication module does not make specific limit System, it is existing may be implemented user to controller transmission instruction mode be ok.

It in the present embodiment, is the switch gate movement for preferably controlling washing machine, washing machine further includes position detection component, For detecting the relative position state of door body 2 Yu shell 1.Specifically, position detection component can be set in rotating mechanism 7, It can also include third limit assembly, position detection component is connect with controller, and the relative position of door body 2 and shell 1 is fed back To controller.

In the present embodiment, when washing machine is in original state, push-and-pull driving assembly 42 is located at the second position, at this point, No matter washing machine door body 2 is in close state or open state, and push-and-pull driving assembly 42 does not contact with door body 2, user Ke Tong The form for crossing manual switch gate or washing machine automatic opening and closing door runs door body 2 to opposite state, realize manual switch door and The compatibility of automatic opening and closing door.

Under default door-opening condition, the relative position of position detection component detection door body 2 and shell 1, when door body 2 and shell When angle between 1 is greater than predetermined angle and when being less than maximum open angle, master control borad 55 controls the starting of rotating mechanism 7 and drives door Body 2 executes door opening action；When the angle between door body 2 and shell 1 is equal to maximum open angle, master control borad 55 sends to open the door and arrive The information of position prompts door body 2 to have already turned on；When the angle between door body 2 and shell 1 is less than predetermined angle, controller control Pushing mechanism operation, at this point, the operational process of pushing mechanism is as follows:

(1) clutch driving motor 531 rotates forward starting and the push-and-pull reversion starting of driving motor 421；

The engaged transmission of (2) second clutch gears 534 and clutch output rack gear 535 moves the second clutch gear 534, from And push-and-pull driving assembly 42 is driven to be moved to first position from the second position；

(3) pull-push piece 41 push and pull driving motor 421 and under the action of the first elastic element 536 with push-and-pull output 422 Engagement；

(4) clutch output motor continues to rotate, and sliding box body 51 is static, and clutch exports rack gear 535 to far from push-and-pull driving The direction of component 42 moves, the compression of the first elastic element 536；

(5) clutch output rack gear 535 drives the movement of the first limited block 611, the first limited block 611 and the first limit switch 612 contacts, the first limit switch 612 are closed, and master control borad 55 receives the signal of the first limit switch 612, control clutch driving Motor 531 is closed；

(6) push-and-pull driving motor 421 continues to rotate, and pull-push piece 41 is driven to move to the direction far from shell 1, and 2 grams of door body It takes 3 resistance of door lock and executes door opening action；

(7) when door body 2 turns to predetermined angle with respect to shell 1, pull-push piece 41 and push-and-pull output 422 are disengaged from position It sets, push-and-pull driving motor 421 is closed；

(8) rotating mechanism 7 starts, and door body 2 is driven to execute the movement that turns to open, when door body 2 is opened to maximum opening angle When, rotating mechanism 7 is out of service；

(9) clutch driving motor 531 inverts, and clutch exports rack gear 535 in the first elastic element 536 and clutch driving motor It is moved under the action of 531 along close to the direction of push-and-pull output precision, until being limited by the second limited block 621；

(10) clutch driving motor 531 continues to invert, and sliding box body 51 is driven to move, and pushes and pulls driving assembly 42 by second It sets to first position and moves, when the second limited block 621 and the second limit switch 622 contact when the closing of the second limited block 621, from It closes driving motor 531 to close, pushes and pulls driving assembly 42 and clutch resets.

In the present embodiment, default door-opening condition includes: that controller receives the door open command of user, door body 2 receives edge Active force, the washing machine in enabling direction are not removed washing clothing in preset time after the completion of clothes washing.

In the present embodiment, the starting of rotating mechanism 7, clutch driving motor 531 invert and push and pull driving motor 421 Stalling can carry out simultaneously, and different sequencings can also be divided successively to start, with clutch driving motor 531, push-and-pull driving electricity The operation of machine 421 and rotating mechanism 7 is mutually non-interference.

Under the conditions of default shutdown, judge whether third limit switch 63 is triggered, when third limit switch 63 is triggered, Master control borad 55 issues door-closing in-place information, and user's door body 2 is reminded to have been switched off；When third limit switch 63 is not triggered, control Device control push-pull mechanism operation processed, at this point, the operational process of push-pull mechanism is as follows:

(1) clutch driving motor 531 rotates forward starting and push-and-pull driving motor 421 rotates forward starting；

The engaged transmission of (2) second clutch gears 534 and clutch output rack gear 535 moves the second clutch gear 534, from And push-and-pull driving assembly 42 is driven to be moved to first position from the second position, the first limited block 611 connects with the first limit switch 612 Touching, the first limit switch 612 are triggered, and clutch driving motor 531 is closed；

(3) starting of rotating mechanism 7 drives door body 2 to move to shutdown direction；

(4) after rotating mechanism 7 rotates to predetermined angle, pull-push piece 41 is engaged with push-and-pull output 422, and rotating mechanism 7 stops Rotation stop is dynamic；

(5) push-and-pull driving motor 421 continues to rotate forward, and pull-push piece 41 is driven to move to the direction close to shell 1, and 2 grams of door body It takes 3 resistance of door lock and executes shutdown movement；

(6) when third limit switch 63 is triggered, push-and-pull driving motor 421 is closed；

(7) clutch driving motor 531 inverts, and clutch exports rack gear 535 in the first elastic element 536 and clutch driving motor It is moved under the action of 531 along close to the direction of push-and-pull output precision, until being limited by the second limited block 621；

(8) clutch driving motor 531 continues to invert, and sliding box body 51 is driven to move, and pushes and pulls driving assembly 42 by first It sets to the second position and moves, second limit switch 622 is triggered when the second limited block 621 is contacted with the second limit switch 622 When, clutch driving motor 531 is closed, and pushes and pulls driving assembly 42 and clutch resets.

In the present embodiment, presetting shutdown condition includes: that controller receives the shutdown instruction of user, door body 2 by edge Active force, the user preset lockup in shutdown direction etc..

In the present embodiment, when executing shutdown movement, the starting shutdown of rotating mechanism 7 can be with the starting of push-pull mechanism It is synchronous to carry out, it so that rotating mechanism 7 is run, after driving door body 2 to predetermined angle, push-pull mechanism restarts operation.? In the present embodiment, the reversion starting of push-and-pull driving motor 421 is run simultaneously with the rotating forward starting of clutch driving motor 531, can also To be first to start clutch driving motor 531, after so that sliding box body 51 is run to predeterminated position, push-and-pull driving motor 421 is restarted Operation.In the present embodiment, the operation opportunity of rotating mechanism 7, push-and-pull driving mechanism and clutch driving mechanism can according to circumstances certainly Row design, be subject to each mechanism operation it is mutually non-interference, and the seamless interfacing for being able to achieve the operation of each mechanism is excellent, raising The operational efficiency of Washing machine switch door.

During washing machine executes automatic opening and closing door, some component in push-pull mechanism breaks down or because power failure is led When the push-pull mechanism of cause is out of service, due to the latching characteristics of the worm and gear in push-and-pull clutch component, it can make at push-pull mechanism In locking state, the manual switch gate failure of user is caused, influences the maintenance of push-pull mechanism and the execution of the manual switch gate of user.For Avoid this problem, push-pull mechanism provided in this embodiment further includes being disengaged component 54, for manually release pull-push piece 41 with The meshing state for pushing and pulling output 422 facilitates the manually opened of door body 2 or closes, and facilitates the maintenance of push-pull mechanism.

Fig. 6 is the structural schematic diagram provided in this embodiment for being disengaged component 54, as shown in fig. 6, provided in this embodiment Being disengaged component 54 includes drawstring 541, lock pressing plate 542, limited post 544 and the second elastic element 543.Locking pressing plate 542 includes First plate and the second plate interconnected, wherein the setting of the first plate is in the first clutch gear 533 and slides between 51 upper cover of box body, And it is connect with the upper surface of the first clutch gear 533.First plate is vertical with the second plate, and the second plate to sliding box body 51 inside Direction extends, and the link position of the first plate and the second plate is rotatablely connected with sliding box body 51 or lid 56 by rotation axis 545.The The lower end of two plates is connected with one end of drawstring 541, and the other end of drawstring 541 stretches out the outer of sliding box body 51 and fixed bin body 52 Side.

The lower end of first clutch gear 533 is connect by the second elastic element 543 with the cassette bottom for sliding box body 51, the second bullet Property element 543 be set on limited post 544, the lower end of limited post 544 is fixedly connected with sliding box body 51, when being disengaged component 54 When in original state, the lower end of the upper end of limited post 544 and the first clutch gear 533 has pre-determined distance；When limited post 544 Upper end and the first clutch gear 533 lower end in contact when, the first clutch gear 533 is disengaged from state with clutch worm screw 532.

When pulling drawstring 541 manually, drawstring 541 drives the second plate with rotation axis 545 for center axis, along far from Slide Box The direction of the cassette bottom of body 51 rotates, so that the first plate be driven to move to close to the direction of sliding 51 cassette bottom of box body；First strip is dynamic First clutch gear 533 compresses the second elastic element 543, until the lower end of the upper end of limited post 544 and the first clutch gear 533 Contact, at this point, the first clutch gear 533 and 532 disengaged position of clutch worm screw.Pull on drawstring 541, the first clutch tooth Wheel 533 can not continue to compress the second elastic element 543 under the restriction of limited post 544, and lock pressing plate 542 can not be continued to rotate, be drawn Extend through lock pressing plate 542 drive sliding box body 51 along from first position towards the second position direction run, make pull-push piece 41 with 422 disengaged position of output is pushed and pulled, meanwhile, so that push-and-pull driving assembly 42 is returned back to the second position.

To improve the stationarity that connect with the first clutch gear 533 of the second elastic element 543, the second elastic element 543 and First clutch gear 533 is additionally provided with connecting bracket 546, and connecting bracket 546 includes supporting plate and supporting leg, supporting plate one end and first 533 lower end of clutch gear abuts, and the other end is abutted with the second elastic element 543, and multiple supporting legs are spaced apart and arranged in the week of supporting plate To position.The slot of the second elastic element of accommodating 543 with limited post 544, the second elastic element are offered on sliding 51 bottom plate of box body 543 are accommodated in slot with the lower end of limited post 544, reduce the whole height of push-pull mechanism in height.Slide 51 bottom plate of box body The position of corresponding bracket offers the stabilizer blade slot protruded into for supporting leg, and the lower end of stabilizer blade slot is provided with grab, and grab may be stuck in stabilizer blade In slot, supporting leg is prevented to be detached from stabilizer blade slot.

In the present embodiment, the first elastic element 536 and the second elastic element 543 are spring, in other embodiments, First elastic element 536 and the second elastic element 543 can also be that other being capable of the flexible element of stress.

Push-pull mechanism provided in this embodiment can make to push and pull by setting push-and-pull executing agency 4 and push-and-pull clutch 5 Clutch 5 drives push-and-pull driving assembly 42 to move between first position and the second position, makes the setting of push-and-pull executing agency 4 not The operation for influencing the manual switch gate of user makes the do washing compatible automatic switch door operation of function and the manual switch gate operation of user, mentions User experience is risen, and improves safety, reliability and the stability of push-pull mechanism operation；By the way that the first elastic element is arranged 536, pull-push piece 41 and push-and-pull output 422 can be promoted to be in the position of engagement, improve the operational reliability of push-pull mechanism, and energy Prevent to pull-push piece 41 or push and pull the damage of output 422；By setting the first limit assembly 61, the second limit assembly 62 and The controllability that controller runs push-pull mechanism can be improved in third limit assembly, and improving push-pull mechanism reliability of operation can Control property；It is disengaged component 54 by setting, when push-pull mechanism structure failure or power-off fault may be implemented, pull-push piece 41 and push-and-pull Engagement between output 422 is detached from and the reset of push-and-pull driving assembly 42 and push-and-pull clutch 5, makes the appearance of failure not The manual switch door movement of user is influenced, while being conducive to the maintenance and replacement of push-pull mechanism.

Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended Scope of the claims determine.

Claims (11)

1. a kind of push-pull mechanism characterized by comprising

It pushes and pulls executing agency (4), push-and-pull executing agency (4) includes the pull-push piece (41) being provided separately and push-and-pull driving assembly (42)；

It pushes and pulls clutch (5), is connect with the push-and-pull driving assembly (42), and the push-and-pull driving assembly (42) can be driven to exist It is moved between first position and the second position, when the push-and-pull driving assembly (42) is in the first position, the push-and-pull is driven Dynamic component (42) can contact with the pull-push piece (41) and the pull-push piece (41) is driven to move, when the push-and-pull driving assembly (42) when being in the second position, the push-and-pull driving assembly (42) cannot contact with the pull-push piece (41).

2. push-pull mechanism according to claim 1, which is characterized in that the push-and-pull clutch (5) includes:

It slides box body (51), is connect with the push-and-pull driving assembly (42)；

Clutch driving assembly (53) is connect with the sliding box body (51), and the sliding box body (51) can be driven mobile.

3. push-pull mechanism according to claim 2, which is characterized in that the clutch driving assembly (53) includes:

Clutch exports rack gear (535)；

Clutch driving motor (531)；

Clutch gear group, the output axis connection of one end and the clutch driving motor (531), the other end and the clutch output gear Item (535) engagement, the clutch gear group are solid with the sliding box body (51) with one in clutch output rack gear (535) Fixed connection.

4. push-pull mechanism according to claim 3, which is characterized in that the clutch driving motor (531) and the clutch Gear set is fixedly connected with the sliding box body (51), and the sliding box body (51) and clutch output rack gear (535) are sliding Dynamic connection.

5. push-pull mechanism according to claim 4, which is characterized in that the push-and-pull clutch (5) further include:

Fixed bin body (52), the sliding box body (51) are slidably connected in the fixed bin body (52), the clutch output gear Item (535) is connect with the fixed bin body (52).

6. push-pull mechanism according to claim 5, which is characterized in that clutch output rack gear (535) and the fixation Box body (52) is slidably connected, and clutch output rack gear (535) is connected with the far from one end of push-and-pull driving assembly (42) The other end of one end of one elastic element (536), first elastic element (536) is connect with the fixed bin body (52), institute The telescopic direction for stating the first elastic element (536) is identical as the clutch output length direction of rack gear (535).

7. push-pull mechanism according to claim 3, which is characterized in that the clutch gear group includes:

Clutch worm screw (532), the output axis connection with the clutch driving motor (531)；

First clutch gear (533) is engaged with the clutch worm screw (532)；

Second clutch gear (544) is engaged with first clutch gear (533) and clutch output rack gear (535) respectively.

8. push-pull mechanism according to claim 7, which is characterized in that the push-and-pull clutch (5) further includes being disengaged Component (54), the component (54) that is disengaged include:

It locks pressing plate (542), the lock pressing plate (542) includes the first plate and the second plate interconnected, first plate and described Second plate has default angle, and the lower surface of first plate is abutted with the first clutch gear (533) upper surface, and described the The junction and the sliding box body (51) of one plate and second plate are rotatablely connected；

Second elastic element (543), one end are connect with the lower end of first clutch gear (533), the other end and the sliding The bottom plate of box body (51) connects；

Drawstring (541), one end are connect with second plate, and the other end stretches out the outside of sliding box body (51).

9. push-pull mechanism according to claim 1, which is characterized in that the push-and-pull driving assembly (42) includes:

It pushes and pulls output (422), can be connect with the pull-push piece (41) and drives the pull-push piece (41) mobile；

It pushes and pulls driving motor (421), output shaft is connect with the push-and-pull output (422), and the push-and-pull can be driven to export Part (422) rotation.

10. push-pull mechanism according to claim 9, which is characterized in that the push-and-pull output (422) is worm screw, described Pull-push piece (41) is snail master bar；

Or, the push-and-pull output (422) is screw rod, the pull-push piece (41) is deformation nut.

11. a kind of electric appliance, including door body (2) and shell (1), the side and the shell (1) of the door body (2) are articulated and connected, It is characterized in that, the pull-push piece (41) is arranged in the door comprising such as claim 1-10 described in any item push-pull mechanisms The other side of body (2), the push-and-pull driving assembly (42) and the push-and-pull clutch (5) are arranged on the shell (1).