CN113201898B

CN113201898B - Pulsator washing machine

Info

Publication number: CN113201898B
Application number: CN202110466711.8A
Authority: CN
Inventors: 刘彦峰; 吴晓飞; 曹明磊; 李萌朝; 邴艾云
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2023-01-10
Anticipated expiration: 2041-04-28
Also published as: CN113201898A

Abstract

The invention provides a pulsator washing machine, comprising: a box body; an outer tub; an inner barrel; an impeller; a power system; a housing; the middle part of the shifting lever is connected with a first torsion spring rotating shaft which is used for applying elastic force which can drive the shifting lever to rotate towards a first direction to the shifting lever; the first swing rod is connected with a second torsion spring rotating shaft, and the second torsion spring rotating shaft is used for applying elastic force to the first swing rod to enable one end of the first swing rod to be abutted against the shell; when the deflector rod is at the first position, the lower end of the deflector rod is abutted against the shell, and the power system controls the inner barrel and the impeller to rotate in the same direction; when the deflector rod is at the second position, one end of the first swing rod is abutted with the shell, the other end of the first swing rod is abutted with the lower end of the deflector rod, and the power system controls the inner barrel and the impeller to rotate reversely; when the lower end of the deflector rod rotates to a third position in the direction far away from the shell, the power system controls only the impeller to rotate, and the inner barrel is static. The pulsator washing machine is beneficial to ensuring accurate switching among various washing modes.

Description

Pulsator washing machine

Technical Field

The invention belongs to the technical field of washing devices, and particularly relates to a pulsator washing machine.

Background

At present, the household appliance industry is in a situation of fierce competition at present, each big competitive product has unique innovation in the aspects of functions, appearance and the like, and however, product details are also important factors influencing the purchasing power of consumers.

The washing machine enters thousands of households at present and becomes a necessity in life, the existing washing machine exists in a single mode, such as pulsator washing, hand rubbing washing, pulsator washing and hand rubbing washing modes, and the material of clothes owned by a user is not one, and the single mode washing cannot meet the requirement that the user selects different washing modes according to different clothes; meanwhile, in the same washing machine with three washing modes, the problem of inaccurate washing mode switching caused by dislocation of a switching component in the washing switching process is easily caused by pure adoption of a single washing tractor and tension spring control, so that the technical problem of ensuring accurate switching among the washing modes needs to be solved.

The invention is provided in view of the above.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. For this purpose, the first and second air-conditioning systems,

the invention provides a pulsator washing machine which is beneficial to ensuring accurate switching among various washing modes.

In order to achieve the above object, an embodiment of the present invention provides a pulsator washing machine, including: a box body; an outer tub disposed in the cabinet; an inner tub rotatably disposed inside the outer tub; the impeller is rotatably arranged in the inner barrel; the power system is connected with the inner barrel and the impeller and is used for driving the inner barrel and the impeller to rotate; the shell is sleeved outside part of the power system; the middle of the shifting lever is connected with a first torsion spring rotating shaft, the first torsion spring rotating shaft is used for applying elastic force which can drive the shifting lever to rotate towards a first direction to the shifting lever, and the first direction is a rotating direction which enables the lower end of the shifting lever to be close to the shell; the first swing rod is connected with a second torsion spring rotating shaft, and the second torsion spring rotating shaft is used for applying elastic force to the first swing rod to enable one end of the first swing rod to be abutted against the shell; when the deflector rod is positioned at the first position, the lower end of the deflector rod is abutted against the shell, and the deflector rod controls the inner barrel and the impeller to rotate in the same direction through the power system; when the shifting lever is at the second position, one end of the first swing rod is abutted against the shell, the other end of the first swing rod is abutted against the lower end of the shifting lever, and the shifting lever controls the inner barrel and the impeller to rotate reversely through the power system. When the lower end of the deflector rod rotates to a third position in the direction far away from the shell, the power system controls only the impeller to rotate, and the inner barrel is static.

From this, the lower extreme through the driving lever contacts with last casing and realizes the accurate location to driving lever primary importance, through the one end and the casing butt of first pendulum rod, the other end realizes the accurate location to the driving lever second place with the lower extreme butt of driving lever to the problem of position dislocation when having prevented the mode switch, and then has guaranteed the accurate switching between multiple washing mode.

In addition, the pulsator washing machine according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the invention, a range control retractor is also included; one end of the brake rod is connected with the gear control tractor, and the other end of the brake rod is connected with a brake belt; and the second swing rod is fixedly connected to the brake rod and synchronously rotates with the brake rod, and the tractor is controlled by gears to drive the brake rod to rotate in a reciprocating manner so as to open or close the brake band. The second swing rod pushes the first swing rod to rotate so as to change the position of the shifting rod, and therefore accurate switching between modes is achieved.

According to one embodiment of the invention, the gear control tractor is connected with a pulling block, the gear control tractor pulls the pulling block to reciprocate through a pulling piece, a limiting opening is formed in the pulling block, one end of the brake band control rod is located in the limiting opening, and the gear control tractor drives the brake band control rod to rotate in a reciprocating mode through pulling the pulling block, so that reciprocating rotation of the brake band control rod is better controlled.

According to one embodiment of the invention, when the gear control tractor runs to a first stroke, the second swing link is abutted with the first swing link so that the shifting lever is in a first position; when the tractor is controlled to run to a second stroke by the gears, the second swing rod is not in contact with the first swing rod, so that the shifting lever is located at a second position. The travel change of the tractor is controlled through the gears, and the second swing rod fixedly connected with the brake rod is driven to rotate, so that the first swing rod is controlled, and the position change of the driving lever is controlled to realize the switching among multiple modes.

According to one embodiment of the present invention, the brake band control lever controls the brake band to brake when the shift control retractor is operated to an initial stroke, thereby preventing the inner tub from rotating.

According to an embodiment of the invention, the inner barrel is fixedly connected with the brake casing, the brake band is arranged around the brake casing, and the brake band tightly holds the brake casing when being closed, so that the brake casing is prevented from rotating, and further the inner barrel is prevented from rotating.

According to one embodiment of the invention, the power system comprises: the gear switching mechanism is connected with the shifting lever; an input shaft mechanism connected to the shift position switching mechanism; a speed reduction mechanism connected to the input shaft mechanism; and the output shaft mechanism is connected with the speed reducing mechanism. The accuracy of mode switching is improved through close fit among the mechanisms.

According to an embodiment of the present invention, the washing machine further comprises a washing tractor, the washing tractor is connected to the lower end of the shift lever through a tension spring, the shift lever is pulled to rotate through the tension spring, and the rotation direction of the inner tub and the pulsator is controlled through the position change of the shift lever.

According to one embodiment of the invention, when the deflector rod is at the first position or the second position, the washing tractor runs to the first limit position so that the tension spring is in a compressed state or an original long state. The acting forces of the tension spring, the first torsion spring rotating shaft and the second torsion spring rotating shaft are mutually offset, so that the shifting lever is located at the second position. When the second torsion spring rotating shaft does not apply elastic force to the shifting lever, the shifting lever is driven by the tension spring and the first torsion spring rotating shaft to rotate to the first position, so that the position of the shifting lever is accurately positioned, and the accuracy of switching among multiple modes is improved.

According to an embodiment of the invention, when the deflector rod is in the third position, the washing tractor operates to the second limit position, so that the tension spring is in a tension state, the tension spring applies an elastic force to the lower end of the deflector rod, the elastic force can drive the lower end of the deflector rod to rotate in a direction away from the shell, the deflector rod controls the impeller to rotate through the power system, and the inner barrel is static. The tension spring in the stretching state overcomes the elastic force generated by the rotation of the first torsion spring to drive the shifting lever to rotate to the third position, so that the position of the shifting lever can be switched accurately, and the accuracy of switching among various modes is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a sectional view of a power system of the pulsator washing machine according to the present invention;

FIG. 2 is an assembly view of the power system of the pulsator washing machine according to the present invention;

FIG. 3 is a side view of the interior of the pulsator washing machine of the present invention;

FIG. 4 is a side view of the inside of the pulsator washing machine of the present invention;

FIG. 5 is a first schematic diagram of the position of the shift fork in the pulsator washing mode of the pulsator washing machine according to the present invention;

FIG. 6 is a second schematic diagram of the position of the shift fork in the pulsator washing mode of the pulsator washing machine according to the present invention;

FIG. 7 is a first schematic diagram of a shift fork position in a hand-rubbing washing mode of the pulsator washing machine according to the present invention;

FIG. 8 is a second schematic diagram illustrating a position of a shifting fork in a rubbing mode of the pulsator washing machine according to the present invention;

FIG. 9 is a first schematic diagram of a shift fork position in a drum washing mode of the pulsator washing machine according to the present invention;

FIG. 10 is a second schematic diagram of the position of the shift fork in the drum washing mode of the pulsator washing machine according to the present invention;

FIG. 11 is an assembly view of a brake band of the pulsator washing machine according to the present invention.

In the above figures: 1. a box body; 2. an outer tub; 3. an inner barrel; 4. an impeller; 5. a power system; 51. a motor; 52. a shift switching mechanism; 521. an upper gear sleeve; 522. a connecting member; 523. a lower tooth holder; 524. a compression spring; 53. an input shaft mechanism; 531. washing the input shaft; 532. a dewatering input shaft; 54. a speed reduction mechanism; 541. a brake housing; 542. a planet wheel; 543. a planet carrier; 544. a sun gear; 55. an output shaft mechanism; 551. washing the output shaft; 552. a dewatering output shaft; 6. a housing; 7. a deflector rod; 71. side limiting ribs; 8. a first swing link; 9. a gear control tractor; 10. a brake lever; 11. a second swing link; 12. pulling the block; 121. a limiting port; 13. a brake band; 14. washing the tractor; 15. a tension spring; 16. a first torsion spring shaft; 17. a second torsion spring rotating shaft; 18. and (7) mounting a seat.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 11, an embodiment of the present invention provides a pulsator washing machine having a cabinet 1 for forming an external appearance, and an outer tub 2 disposed inside the cabinet 1, an inner tub 3 rotatably disposed inside the outer tub 2, a pulsator 4 rotatably disposed at a center of the inner tub 3, the pulsator 4 having the same central axis as that of rotation of the inner tub 3 and the outer tub 2. The shell 6 is sleeved outside part of the power system 5, and the pulsator washing machine has three washing modes, namely a rotary drum washing mode in which the inner drum 3 and the pulsator 4 can rotate in the same direction under the driving of the power system 5; a hand rubbing washing mode in which the inner tub 3 and the pulsator 4 rotate in opposite directions to each other; and a pulsator washing mode in which only the pulsator 4 rotates and the inner tub 3 stops rotating.

A power system 5 of the pulsator washing machine is provided at one end of the cabinet 1, and the power system 5 is used for transmitting a driving force generated by the motor 51 to the inner tub 3 and the pulsator 4 through commutation, and for driving and controlling the rotation of the inner tub 3 and the pulsator 4.

The power system 5 includes: the motor 51, the shift switching mechanism 52, the input shaft mechanism 53 connected to the shift switching mechanism 52, the speed reduction mechanism 54 connected to the input shaft mechanism 53, and the output shaft mechanism 55 connected to the speed reduction mechanism 54 improve the accuracy of mode switching by the close fit between the respective mechanisms. The motor 51 is disposed on the outer tub 2 for driving the inner tub 3 and the pulsator 4 to rotate. The output shaft of the motor 51 is the same as the rotation central axis of the inner tub 3.

The shift position changing mechanism 52 includes a coupling member 522, an upper sleeve 521, a lower holder 523, and a compression spring 524. The connecting piece 522 is provided with a tooth socket structure which can be respectively matched with the upper tooth socket 521 or the lower tooth holder 523, and when the connecting piece 522 is positioned at the middle position, the connecting piece 522 is not matched with the upper tooth socket 521 and the lower tooth holder 523. By the up-and-down sliding of the coupling member 522 to change the connection relationship between the input shaft mechanism 53 and the reduction mechanism 54, the driving force reversed through the reduction mechanism 54 is input to the inner tub 3 and the pulsator 4 from the output shaft mechanism 55.

The upper gear sleeve 521 is fixedly connected with the power output shaft of the motor 51, and can also be integrally connected with the power output shaft of the motor 51 and synchronously rotate along with the power output shaft of the motor 51. The upper gear sleeve 521 is provided with teeth and slots matched with the tooth socket structure of the connecting piece 522 so as to be tightly matched with the connecting piece 522 and prevent tooth stripping.

The lower toothholder 523 is fixedly connected to the casing 6, the casing 6 is fixedly connected to the mounting seat 18, and the mounting seat 18 is fixedly connected to the outer tub 2, so as to ensure the fixation of the lower toothholder 523. The mounting block 18 is also used to mount other washing machine components. The lower toothholder 523 is also provided with teeth and slots matched with the tooth groove structure of the connecting piece 522 so as to be tightly matched with the connecting piece 522 and prevent tooth stripping. A compression spring 524 is provided between the lower socket 523 and the link 522 for applying an elastic force to the link 522 moving in a direction to approach the upper shell 521.

The input shaft mechanism 53 includes a dehydration input shaft 532 and a washing input shaft 531, the dehydration input shaft 532 is a hollow shaft, the connecting member 522 is sleeved outside the dehydration input shaft 532, and the washing input shaft 531 is disposed in the hollow inside the dehydration input shaft 532. The washing input shaft 531 and the dehydrating input shaft 532 may rotate independently of each other. Wherein, the middle of the connecting piece 522 is provided with a key slot which is connected with the dehydration input shaft 532 through a spline, so that the connecting piece 522 can slide up and down along the dehydration input shaft 532, and the connecting piece 522 rotates synchronously with the dehydration input shaft 532.

The casing 6 is disposed outside the reduction mechanism 54, and the reduction mechanism 54 located inside the casing 6 is a planetary gear 542 train. The planet wheel 542 system comprises a brake housing 541, a gear ring is fixedly connected in the brake housing 541, a planet wheel 542 is meshed with an inner ring of the gear ring, the center of the planet wheel 542 is rotatably connected to a planet carrier 543, and the planet carrier 543 is driven by the planet wheel 542 to rotate. The center of the carrier 543 is connected to a washing output shaft 551, and the end of the washing input shaft 531 is a sun gear 544. The planet gear 542 meshes with the ring gear on one side and with the sun gear 544 on the other side. The washing input shaft 531 transmits the driving force of the motor 51 into the speed reduction mechanism 54.

The output shaft mechanism 55 includes: one end of the washing output shaft 551 is in transmission connection with the planet carrier 543 through a spline, and the other end of the washing output shaft 551 is fixedly connected with the impeller 4. One end of the dehydration output shaft 552 is fixedly connected with the brake housing 541, and the other end of the dehydration output shaft 552 is fixedly connected with the inner tub 3 through a screw. The washing output shaft 551 transmits the driving force through the speed reducing mechanism 54 to the pulsator 4, and the spinning output shaft 552 transmits the driving force through the speed reducing mechanism 54 to the inner tub 3.

In order to make the connecting member 522 precisely fit with the upper gear sleeve 521 and the lower gear seat 523 respectively through sliding, the embodiment of the present invention is provided with a shift lever 7 and a first swing lever 8.

The middle part of the shift lever 7 is connected with a first torsion spring rotating shaft 16, and the shift lever 7 is rotatably connected to the shell 6 through the first torsion spring rotating shaft 16. The first torsion spring rotary shaft 16 serves to apply an elastic force to the shift lever 7, which can drive the shift lever 7 to rotate in a first direction, which is a rotational direction in which the lower end of the shift lever 7 approaches the housing 6.

The upper end of the lever 7 contacts the link 522, and the link 522 slides up and down along the dehydration input shaft 532 by the rotation of the lever 7. The lower end of the deflector rod 7 is provided with a side limiting rib 71, and when the deflector rod 7 is located at the second position, the first swing rod 8 is abutted to the side limiting rib 71.

The first swing link 8 is connected with a second torsion spring rotating shaft 17, the second torsion spring rotating shaft 17 is installed on the installation seat 18, and the first swing link 8 is rotatably connected on the installation seat 18 through the second torsion spring rotating shaft 17. The second torsion spring rotating shaft 17 is used for applying an elastic force to the first swing link 8, so that one end of the first swing link 8 is abutted against the shell 6, and the other end of the first swing link is abutted against the lower end of the shift lever 7. That is, the second torsion spring rotary shaft 17 applies an elastic force to the shift lever 7 through the first swing link 8, which suppresses the lower end of the shift lever 7 from approaching the housing 6, and the elastic force is greater than a resultant force of the elastic forces applied to the shift lever 7 by the first torsion spring rotary shaft 16 and the compression spring 524.

When the deflector rod 7 is in the first position, the lower end of the deflector rod 7 abuts against the shell 6, the upper end of the deflector rod 7 drives the connecting piece 522 to slide to be matched with the upper gear sleeve 521, at this time, the pulsator washing machine is in a rotary drum washing mode, and the deflector rod 7 controls the inner drum 33 and the pulsator 4 to rotate in the same direction through the power system 5.

When the shift lever 7 is located at the second position and one end of the first swing link 8 abuts against the shell 6, the other end of the first swing link 8 abuts against a side limiting rib 71 at the lower end of the shift lever 7. That is, the second torsion spring rotary shaft 17 applies an elastic force to the shift lever 7 through the first swing link 8, which suppresses the lower end of the shift lever 7 from approaching the housing 6, and the elastic force is greater than a resultant force of the elastic forces applied to the shift lever 7 by the first torsion spring rotary shaft 16 and the compression spring 524. The upper end of the shift lever 7 drives the connecting member 522 to slide to a second position where it is not engaged with the upper gear sleeve 521 and the lower gear seat 523. At this time, the pulsator washing machine is in a hand-rubbing washing mode, and the shift lever 7 controls the inner tub 33 and the pulsator 4 to rotate reversely through the power system 5.

When the lower end of the shift lever 7 rotates to the third position in the direction away from the housing 6, the shift lever 7 drives the connecting member 522 to slide close to the lower rack 523 until the connecting member 522 is completely engaged with the lower rack 523. After engagement, the motor 51 rotates to rotate the washing input shaft 531 to output power to the pulsator 4 through the reduction mechanism 54. Since the connecting member 522 is engaged with the lower rack 523, the dewatering output shaft 552 splined with the connecting member 522 is locked, that is, the inner tub 33 is locked, the power system 5 controls only the pulsator 4 to rotate during washing, and the inner tub 3 is stationary.

The lower end of the shifting rod 7 is in contact with the upper shell 6 to realize accurate positioning of the first position of the shifting rod 7. One end of the first swing rod 8 is abutted against the shell 6, and the other end of the first swing rod is abutted against the lower end of the shifting lever 7 to achieve accurate positioning of the second position of the shifting lever 7. The lower end of the shifting rod 7 rotates towards the direction far away from the shell 6 until reaching the third position so as to realize accurate positioning. Through the accurate location to driving lever 7, realized control connection piece 522 respectively with last tooth cover 521 and the accurate cooperation of lower toothholder 523 to the problem of position dislocation when having prevented the mode switch, and then guaranteed the accurate switching between multiple washing mode.

Specifically, the present embodiment further includes a gear control retractor 9, a brake lever 10 and a second swing link 11. One end of the brake rod 10 is connected with a gear control retractor 9, the other end is connected with a brake belt 13, and the gear control retractor 9 controls the brake rod 10 to rotate in a reciprocating mode. The second swing link 11 is fixedly connected to the brake lever 10, rotates synchronously with the brake lever 10, and drives the brake lever 10 to rotate back and forth through the gear control retractor 9 so as to open or close the brake band 13. The position of the shift lever 7 can be changed by pushing the first swing rod 8 to rotate through the second swing rod 11, so that the modes can be switched accurately.

The gear control tractor 9 is connected with a pulling block 12, the gear control tractor 9 pulls the pulling block 12 to reciprocate through a pulling piece, a limiting opening 121 is formed in the pulling block 12, one end of a control rod of a brake band 13 is located in the limiting opening 121, and the gear control tractor 9 drives the control rod of the brake band 13 to rotate in a reciprocating mode through pulling the pulling block 12, so that reciprocating rotation of the control rod of the brake band 13 is controlled better.

The shift control retractor 9 has a first stroke, a second stroke, and an initial stroke. When the gear control tractor 9 runs to the first stroke, the brake belt 13 controls the rod to rotate to drive the second swing link 11 to rotate, so that the second swing link 11 is abutted against the first swing link 8. At this time, the gear control tractor 9 drives the brake band 13 to control the rod to continue rotating, and the second swing link 11 overcomes the elastic force of the second torsion spring rotating shaft 17 to drive the first swing link 8 to separate from the lower end of the shift lever 7. When the gear control tractor 9 runs to the second stroke, the first swing link 8 and the second swing link 11 are not contacted any more. At this time, the shift lever 7 rotates under the combined force of the compression spring 524 and the elastic force of the first torsion spring rotating shaft 16, so that the shift lever 7 drives the connecting member 522 to slide in a direction approaching the upper gear sleeve 521 until the shift lever 7 rotates to the first position. When the shift lever 7 rotates to the first position, the connecting member 522 is engaged with the upper gear sleeve 521, the pulsator washing machine is in a rotary tub washing mode, and the power system 5 controls the inner tub 33 and the pulsator 4 to rotate in the same direction. When the shift control retractor 9 is operated to the first stroke, the brake tape 13 is in the open state, and the brake tape 13 does not apply a brake to the brake housing 541.

When the gear control tractor 9 runs to the second stroke, the second swing link 11 is not in contact with the first swing link 8, so that the shift lever 7 is in the second position under the action of the elastic force of the second torsion spring. The stroke change of the tractor 9 is controlled through a gear, the second swing rod 11 fixedly connected with the brake lever 10 is driven to rotate, at the moment, the second swing rod 11 is not contacted with the first swing rod 8, therefore, the second swing rod 11 has no effect on the first swing rod 8, the deflector rod 7 is at the second position at the moment, the motor 51 rotates to drive the washing input shaft 531 to rotate, the power is output to the impeller 4 through the washing output shaft 551 through the speed reducing mechanism 54, because the connecting piece 522 is not meshed with the upper gear sleeve 521 and the lower gear seat 523, the dewatering input shaft 532 meshed with the connecting piece 522 through the spline is in a free state at the moment, and the dewatering input shaft 532 is locked by the brake belt 13. During washing, the rotation directions of the impeller 4 and the inner barrel 3 can be opposite to each other through the action of the speed reducing mechanism 54. Through the control of the first swing rod 8, the position change of the shift lever 7 is further controlled so as to realize the accurate switching among various modes. When the shift control retractor 9 is operated to the second stroke, the brake band 13 is in the open state, and the brake band 13 has no braking effect on the brake housing 541.

When the gear controller runs to the initial stroke, the control rod of the brake band 13 controls the brake band 13 to brake, and at the moment, the brake band 13 is in a closed state, so that the function of preventing the inner barrel 33 from rotating is realized.

The brake band 13 is disposed around the brake housing 541, the brake housing 541 is fixedly connected to the dehydration output shaft 552, the dehydration output shaft 552 is fixedly connected to the inner tub 3 by screws, that is, the brake housing 541 is fixedly connected to the inner tub 33, the brake band 13 is closed when closed, and the brake band 13 tightly holds the brake housing 541, thereby preventing the brake housing 541 from rotating and further preventing the inner tub 33 from rotating.

In order to better realize accurate switching among various modes, the embodiment of the invention further comprises a washing tractor 14, the washing tractor 14 is connected to the lower end of the shift lever 7 through a tension spring 15, the washing tractor 14 pulls the shift lever 7 to rotate through the tension spring 15, so as to control the position change of the shift lever 7, and further control the rotation direction of the inner barrel 33 and the impeller 4 through the power system 5.

When the shift lever 7 is at the second position, the washing retractor 14 is operated to the first limit. The forces acting on the shift lever 7 by the tension spring 15 and the first and second

torsion spring shafts

16, 17 cancel each other out, so that the shift lever 7 is in the second position.

When the lever 7 is initially in the second position, the washing retractor 14 is operated to the first limit so that the tension spring 15 is in a compressed state. When the second swing link 11 drives the first swing link 8 to rotate, so that the second torsion spring rotating shaft 17 does not apply an elastic force to the shift lever 7, the tension spring 15 and the first torsion spring rotating shaft 16 in a compressed state drive the shift lever 7 to rotate to the first position, at this time, the shift lever 7 does not apply pressure to the connecting piece 522 any more, the connecting piece 522 moves towards the direction close to the upper gear sleeve 521 under the action of the compression spring 524 until being meshed with the upper gear sleeve 521, and therefore switching among various washing modes is achieved through accurate positioning of the position of the shift lever 7.

Specifically, when the shift lever 7 rotates to the first position, the tension spring 15 may be in a compressed state or in an original long state or in a stretched state at this time, and the specific analysis is as follows:

when the tension spring 15 is in a compressed state at the first position of the shift lever 7, the resultant force of the first torsion spring rotating shaft 16 and the tension spring 15 drives the bottom end of the shift lever 7 to abut against the housing 6, thereby positioning the first position of the shift lever 7.

When the tension spring 15 is in the original length state at the first position of the shift lever 7, the first torsion spring rotating shaft 16 drives the bottom end of the shift lever 7 to abut against the housing 6, and the tension spring 15 is in the original length state at this time and is not stressed, so that the first position of the shift lever 7 is positioned.

When the tension spring 15 is in a stretched state at the first position of the shift lever 7, and the force of the first torsion spring rotating shaft 16 is greater than the force of the tension spring 15, the bottom end of the shift lever 7 abuts against the housing 6, so that the first position of the shift lever 7 is positioned. When the force of the first torsion spring rotating shaft 16 is less than or equal to the force of the tension spring 15, the bottom end of the shift lever 7 is not abutted against the housing 6, the shift lever 7 is at the first position, and the upper gear sleeve 521 is engaged with the connecting member 522.

In other embodiments, the deflector rod 7 is in the second position, and when the washing tractor 14 operates to the first limit position, so that the tension spring 15 is in the original length state, when the second swing link 11 drives the first swing link 8 to rotate, so that the second torsion spring rotating shaft 17 does not apply an elastic force to the deflector rod 7, the first torsion spring rotating shaft 16 drives the deflector rod 7 to rotate to the first position, at this time, the tension spring 15 is elongated to be in the stretching state, the deflector rod 7 is in the first position and does not apply a pressure to the connecting member 522, the connecting member 522 moves in a direction close to the upper gear sleeve 521 under the action of the compression spring 524, so that the switching between the washing modes is realized through the accurate positioning of the position of the deflector rod 7, and the accuracy of switching between the multiple modes is improved.

In the embodiment, the technical scheme that when the shift lever 7 is in the first position and the second position, the tension spring 15 is in a compressed state is adopted, and the following scheme is explained on the basis of the embodiment.

The principle of controlling and changing the position of the shift lever 7 to switch among the multiple washing modes in other embodiments is the same as that in the embodiment, and is not repeated herein.

When the shift lever 7 is at the third position, the washing puller 14 operates to the second limit position, so that the tension spring 15 is in a stretching state, the tension spring 15 applies an elastic force to the lower end of the shift lever 7, which can drive the lower end of the shift lever 7 to rotate in a direction away from the housing 6, and the shift lever 7 rotates under the action of the tension spring 15 against the resultant force of the compression spring 524 and the first torsion spring rotating shaft 16, so as to drive the connecting piece 522 to slide close to the lower tooth holder 523 until the connecting piece 522 is completely engaged with the lower tooth holder 523. After engagement, the motor 51 rotates to rotate the washing input shaft 531 to output power to the pulsator 4 through the reduction mechanism 54. Since the connecting member 522 is engaged with the lower rack 523, the dewatering output shaft 552 engaged with the spline of the connecting member 522 is locked, that is, the inner tub 33 is locked, only the pulsator 4 rotates during washing, and the inner tub 3 is stationary. The tension spring 15 in a stretching state overcomes the elastic force generated by the rotation of the first torsion spring to drive the shift lever 7 to rotate to the third position, so that the position of the shift lever 7 can be switched accurately, and the accuracy of switching among various modes is improved.

In the tub washing mode, the washing retractor 14 is at the first limit, and the tension spring 15 is at the compressed state. In the process that the gear control retractor 9 runs to the first stroke, the brake lever 10 is driven to rotate to enable the brake belt 13 to be in an open state, and the second swing link 11 rotates for a certain angle along with the brake lever 10 until the second swing link 11 is in contact with the first swing link 8. After the second swing link 11 contacts with the first swing link 8, the second swing link continues to rotate under the driving of the gear shift control tractor 9. The second swing link 11 drives the first swing link 8 to rotate to the gear position against the elastic force of the second torsion spring rotating shaft 17 to control the tractor 9 to move to the first stroke. While the first swing link 8 rotates, the lower end of the shift lever 7 rotates towards the direction close to the housing 6 under the action of the first torsion spring rotating shaft 16 and the tension spring 15 in a compressed state until the lower end of the shift lever 7 is abutted against the housing 6. When the shift lever 7 rotates, the shift lever 7 no longer applies pressure to the connecting member 522, and the connecting member 522 moves in a direction approaching the upper gear sleeve 521 under the action of the compression spring 524 until the connecting member 522 is engaged with the upper gear sleeve 521. The motor 51 rotates to drive the upper teeth and the washing input shaft 531 to rotate, and simultaneously drives the connecting member 522 meshed with the upper gear sleeve 521 to rotate, at this time, the dewatering input shaft 532 splined with the connecting member 522 correspondingly rotates, and after passing through the speed reducing mechanism 54, the motor 51 rotates to drive the pulsator 4 and the inner tub 33 to synchronously rotate.

In the hand scrubbing washing mode, the washing tractor 14 is at the first limit position, and the tension spring 15 is in a compressed state. The deflector rod 7 is located at the second position under the action of the first swing rod 8, and the connecting piece 522 is located at the middle position of the upper gear sleeve 521 and the lower gear holder 523 under the action of the deflector rod 7, namely the connecting piece 522 is not matched with the upper gear sleeve 521 and the lower gear holder 523. At this point the shift control retractor 9 is operating to the second stroke. When the brake is operated to the second stroke, the brake lever 10 is driven to rotate, and the brake belt 13 is in an open state. The second swing link 11 rotates a certain angle with the brake lever 10. The second swing link 11 is not in contact with the first swing link 8 in the process that the gear control retractor 9 runs to the first stroke, that is, the first swing link 8 keeps the position unchanged under the action of the second torsion spring rotating shaft 17, that is, the shift lever 7 is still at the second position. The motor 51 rotates to drive the washing input shaft 531 to rotate, and the power is output to the pulsator 4 through the speed reducing mechanism 54, and since the connection member 522 is not engaged with the upper gear sleeve 521 and the lower gear seat 523, the dewatering input shaft 532 in spline engagement with the connection member 522 is in a free state, that is, the inner tub 33 is not locked. During washing, the impeller 4 and the inner barrel 3 can be rotated oppositely to wash under the action of the speed reducing mechanism 54.

In the pulsator washing mode, the washing retractor 14 is operated to the second limit position so that the tension spring 15 is in a tension state, the tension spring 15 applies an elastic force to the lower end of the shift lever 7 to drive the lower end of the shift lever 7 to rotate in a direction away from the housing 6, and the shift lever 7 rotates under the action of the tension spring 15 against the resultant force of the compression spring 524 and the first torsion spring rotating shaft 16, so as to drive the connecting member 522 to slide close to the lower rack 523 until the connecting member 522 is completely engaged with the lower rack 523. After engagement, the motor 51 rotates to rotate the washing input shaft 531 to output power to the pulsator 4 through the reduction mechanism 54. At this point the shift control retractor 9 is operating to a second or initial stroke. Since the connecting member 522 is engaged with the lower rack 523, the dewatering output shaft 552 engaged with the spline of the connecting member 522 is locked, that is, the inner tub 33 is locked, only the pulsator 4 rotates during washing, and the inner tub 3 is stationary, thereby realizing pulsator washing.

When the rotary tub washing mode is switched to the hand washing mode, the washing tractor 14 always keeps the first limit. The gear control tractor 9 is powered off, so that the gear control tractor 9 is reset to the initial stroke, the second swing rod 11 has no force on the first swing rod 8, and the driving lever 7 is located at the second position under the action of the first swing rod 8. The shift control retractor 9 is then operated to a second stroke so that the brake band 13 is in an open position so that the inner barrel 33 can be rotated. The second swing link 11 is not abutted to the first swing link 8 at this time, and the driving motor 51 rotates to realize the accurate switching of the rotary drum washing mode into the hand rubbing washing mode.

When the rotary barrel washing mode is switched to the impeller washing mode, the washing tractor 14 moves from the first limit position to the second limit position, and the tension spring 15 is changed from a compression state to a tension state. The shift lever 7 rotates to drive the connecting member 522 to slide to be matched with the lower toothholder 523, and the dewatering input shaft 532 is locked, that is, the inner barrel 3 is locked. The gear control tractor 9 runs from a first stroke to a second stroke, so that the second swing rod 11 does not apply force on the first swing rod 8, and the driving motor 51 rotates to realize the accurate switching of the rotary drum washing mode to the impeller washing mode.

When the pulsator washing mode is switched to the hand washing mode, the washing tractor 14 moves from the second limit position to the first limit position, so that the tension spring 15 in the tension state is changed into the compression state. The gear control tractor 9 is in the second stroke, the first swing rod 8 exerts force on the shift lever 7 to enable the shift lever 7 to rotate to stop moving when contacting with the first swing rod 8, the shift lever 7 is in the second position when stopping, the connecting piece 522 is not matched with the upper gear sleeve 521 and the lower gear seat 523 at the moment, and the motor 51 rotates to realize accurate switching of the pulsator washing mode into the hand washing mode.

When the pulsator washing mode is switched to the tub washing mode, the washing tractor 14 moves from the second limit position to the first limit position, so that the tension spring 15 in the tension state is changed into the compression state. Gear control tractor 9 moves to first stroke by the second stroke, and the effect is exerted to first pendulum rod 8 to second pendulum rod 11, and first pendulum rod 8 breaks away from the contact with the lower extreme of driving lever 7, and then makes driving lever 7 cancel the pressure to connecting piece 522, and connecting piece 522 slides to the direction that is close to last facing 521, and when the lower extreme butt of driving lever 7 to casing 6, connecting piece 522 and the accurate cooperation of last facing 521, motor 51 rotate and realize that the accurate switching of impeller washing mode is rotary drum washing mode.

When the hand washing mode is switched to the pulsator washing mode, the washing tractor 14 moves from the first limit position to the second limit position, and the tension spring 15 is changed from the compression state to the tension state. The shift lever 7 rotates to drive the connecting member 522 to slide to be matched with the lower toothholder 523, and the dewatering input shaft 532 is locked, that is, the inner barrel 3 is locked. The tractor 9 is controlled to be in the second stroke by the gear to ensure that the second swing rod 11 does not apply force to the first swing rod 8, and the driving motor 51 rotates to realize the accurate switching of the rotary drum washing mode into the impeller washing mode.

When the hand rubbing washing mode is switched to the rotary barrel washing mode, the washing tractor 14 is always in the first limit position, the gear control tractor 9 runs to the first stroke from the second stroke, the second swing rod 11 exerts force on the first swing rod 8, the first swing rod 8 is separated from contact with the lower end of the deflector rod 7, the pressure of the deflector rod 7 on the connecting piece 522 is further eliminated, the connecting piece 522 slides towards the direction close to the upper gear sleeve 521, when the lower end of the deflector rod 7 is abutted to the shell 6, the connecting piece 522 is accurately matched with the upper gear sleeve 521, and the motor 51 rotates to realize accurate switching of the hand rubbing washing mode into the rotary barrel washing mode.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A pulsator washing machine, comprising:

a box body;

an outer tub disposed in the case;

the inner barrel is rotatably arranged inside the outer barrel;

the impeller is rotatably arranged in the inner barrel;

the power system is connected with the inner barrel and the impeller and is used for providing power for the impeller and/or the inner barrel;

the shell is sleeved outside part of the power system;

the middle of the shifting lever is connected with a first torsion spring rotating shaft, the first torsion spring rotating shaft is used for applying elastic force which can drive the shifting lever to rotate towards a first direction to the shifting lever, and the first direction is a rotating direction which enables the lower end of the shifting lever to be close to the shell; and

the first swing rod is connected with a second torsion spring rotating shaft, the second torsion spring rotating shaft is used for applying elastic force to the first swing rod to enable one end of the first swing rod to be abutted against the shell, and the other end of the first swing rod is arranged between the shell and the deflector rod;

the washing tractor is connected to the lower end of the deflector rod through a tension spring and pulls the deflector rod to rotate through the tension spring so as to control the rotation directions of the inner barrel and the impeller;

when the deflector rod is positioned at a first position, the washing tractor operates to a first limit position, the second swing rod is abutted with the first swing rod so that the first swing rod is separated from the lower end of the deflector rod, the lower end of the deflector rod is abutted with the shell, and the deflector rod controls the inner barrel and the impeller to rotate in the same direction through the power system;

when the deflector rod is positioned at a second position, the washing tractor operates to a first limit position, the second swing rod is not in contact with the first swing rod, so that one end of the first swing rod is abutted with the shell, the other end of the first swing rod is abutted with the lower end of the deflector rod, and the deflector rod controls the inner barrel and the impeller to rotate reversely through the power system;

the washing tractor runs to the second limit position, the tension spring is in a tension state, when the tension spring applies elastic force which can drive the lower end of the shifting lever to rotate in the direction far away from the shell to the lower end of the shifting lever, the lower end of the shifting lever rotates to the third position in the direction far away from the shell, the power system controls only the impeller to rotate, and the inner barrel is static.

2. The pulsator washing machine according to claim 1,

also comprises

A gear control tractor;

one end of the brake rod is connected with the gear control tractor, and the other end of the brake rod is connected with a brake belt; and

and the second swing rod is fixedly connected to the brake rod and synchronously rotates with the brake rod.

3. The pulsator washing machine according to claim 2,

the gear control tractor is connected with and draws the piece, gear control tractor pulls through pulling a pulling piece reciprocating motion, draw and be provided with spacing mouthful on the piece, the one end of brake area control lever is located in spacing mouthful, gear control tractor is through the pulling the piece drives brake area control lever reciprocating rotation.

4. The pulsator washing machine as claimed in claim 2,

when the gear control tractor runs to a first stroke, the second swing rod is abutted with the first swing rod so that the driving lever is located at a first position;

when the tractor is controlled to run to a second stroke by the gear, the second swing rod is not in contact with the first swing rod, so that the shifting lever is located at a second position.

5. The pulsator washing machine as claimed in claim 2,

when the gear control tractor runs to the initial stroke, the brake band control rod controls the brake band to brake.

6. The pulsator washing machine according to claim 2,

the inner barrel is fixedly connected with the inner barrel, the brake band is arranged around the brake shell, and the brake band tightly holds the brake shell when closed.

7. The pulsator washing machine as claimed in claim 1,

the power system comprises:

the motor is arranged on the outer barrel and used for driving the inner barrel and the impeller to rotate;

the gear switching mechanism is connected with the shifting rod;

an input shaft mechanism connected to the shift position switching mechanism;

a speed reduction mechanism connected to the input shaft mechanism;

and the output shaft mechanism is connected with the speed reducing mechanism.