CN214736758U - Pulsator washing machine - Google Patents

Abstract

The utility model provides a rotary drum washing machine, include: a box body; an outer tub; an inner barrel; an impeller; the power system 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 in rotatable abutting connection with the lower end of the driving lever; and the washing tractor is connected to the lower end of the shifting lever through a tension spring and pulls the shifting lever to rotate so as to change the position of the shifting lever through the tension spring. The utility model discloses rotary drum washing machine is favorable to guaranteeing the accurate switching between multiple washing mode.

Description

Pulsator washing machine

Technical Field

The utility model belongs to the technical field of washing device, especially, relate to a rotary drum washing machine.

Background

At present, the household appliance industry is in a situation of intense competition, each big competitive product has unique innovation in the aspects of functions, appearance and the like, and the 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.

In view of this, the present invention is proposed.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. For this purpose,

the utility model provides a rotary drum washing machine is favorable to guaranteeing the accurate switching between multiple washing mode.

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 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 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 in rotatable abutting connection with the lower end of the driving lever; and the washing tractor is connected to the lower end of the shifting lever through a tension spring, and the washing tractor pulls the shifting lever to rotate so as to change the position of the shifting lever through the tension spring.

From this, support through the lower extreme of first pendulum rod and driving lever, the drive driving lever contacts with the casing and realizes the accurate location to the driving lever, pulls through the washing tractor the extension spring rotates for the lower extreme of driving lever rotates to the direction of keeping away from the casing and changes the position of driving lever in order to realize the accurate switching between the washing mode, has improved the accurate nature of switching between impeller washing machine's multiple washing mode.

In addition, according to the utility model discloses the rotary drum washing machine of above-mentioned embodiment can also have following additional technical characterstic:

according to an embodiment of the present invention, when the shift lever is at the first position, the first swing link abuts against the lower end of the shift lever to apply an elastic force that can drive the lower end of the shift lever to rotate in a direction close to the housing, and the power system controls the inner barrel and the pulsator to rotate in the same direction; when the pulling rod is pulled by the tension spring to be at the second position, the pulling rod and the power system control the inner barrel and the impeller to rotate reversely. When the deflector rod is at the third position, the power system controls only the impeller to rotate, and the inner barrel is static. The position of the deflector rod is changed to control the power output of the power system, so that the rotation directions of the inner barrel and the impeller are controlled, and accurate switching among various washing modes is realized.

According to one embodiment of the utility model, the utility model also comprises a gear control tractor; and one end of the brake rod is connected with the gear control tractor, the other end of the brake rod is connected with a brake belt, the gear control tractor controls the brake rod to rotate in a reciprocating mode, and the first swing rod is fixedly connected to the brake rod and rotates synchronously with the brake rod. The position of the shifting lever is changed by pushing the shifting lever to rotate through the first oscillating bar, so that accurate switching between modes is realized.

According to an embodiment of the present invention, when the gear control retractor is operated to the first stroke, the first swing link abuts against the lower end of the shift lever so that the shift lever is located at the first position; when the tractor is controlled to run to a second stroke by the gear, the shifting lever is located at a second position, and the first swing rod is not in contact with the shifting lever. The stroke change of the tractor is controlled through the gears, and the first swing rod fixedly connected with the brake rod is driven to rotate, so that the first swing rod is controlled, and the position of the driving lever is controlled to realize the switching among various washing modes.

According to an embodiment of the utility model, when gear control tractor moved to initial stroke, brake lever control the braking of brake band. Thereby playing the role of preventing the inner barrel from rotating.

According to the utility model discloses an embodiment, gear control tractor is connected with the pull block, gear control tractor pulls through drawing a pulling the pull block reciprocating motion, be provided with spacing mouthful on the pull block, the one end of brake lever is located in spacing mouthful, gear control tractor is through the pulling the pull block drives brake lever reciprocating rotation.

According to the utility model discloses an embodiment still includes the brake housing, brake housing fixed connection interior bucket, the brake area encircles the brake housing sets up, hold tightly when the brake area is closed the brake housing to play and prevent brake housing and rotate, and then prevent interior bucket rotation.

According to an embodiment of the present invention, 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 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, when the shift lever is in the first position or the second position, the washing tractor is operated to the first limit position. The rotation direction of the inner barrel and the impeller is controlled by changing the position of a driving lever driven by a washing tractor.

According to the utility model discloses an embodiment, when the driving lever is in the third position, the washing tractor moves to the second spacing so that the extension spring is in tensile state, the extension spring to the lower extreme of driving lever is applyed and is driven the lower extreme of driving lever is to keeping away from the direction pivoted elastic force of casing, simultaneously driving system control the impeller rotates, interior bucket 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 accurate switching of the position of the shifting lever is realized, 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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

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

FIG. 3 is a side view of an outer tub of the pulsator washing machine of the present invention;

FIG. 4 is a second side view of the outer tub of the pulsator washing machine of the present invention;

FIG. 5 is a third side view of the outer tub of the pulsator washing machine of the present invention;

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

FIG. 7 is a schematic diagram of a second position of the shifting fork in the rotary tub washing mode of the pulsator washing machine of the present invention;

FIG. 8 is a first schematic diagram of a shift fork position in the hand rubbing washing mode of the pulsator washing machine of the present invention;

FIG. 9 is a schematic diagram of a second position of the shifting fork in the manual rubbing washing mode of the pulsator washing machine of the present invention;

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

FIG. 11 is a schematic diagram of a second shift fork position in the pulsator washing mode of the pulsator washing machine of the present invention;

fig. 12 is an assembly schematic view of the brake band of the pulsator washing machine of 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 dehydration 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 mounting seat; 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.

Detailed Description

The present invention is specifically described 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 merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, 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 is to 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 meaning 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 12, an embodiment of the present invention provides a pulsator washing machine having a case 1 for forming an external appearance, and an outer tub 2 disposed inside the case 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 the 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 under the driving of the power system 5, namely a rotary drum washing mode in which the inner drum 3 and the pulsator 4 can rotate in the same direction; 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 center 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 a slot which are 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.

The lower toothholder 523 is fixedly connected to the casing 6, the casing 6 is fixedly connected to the mounting seat 11, and the mounting seat 11 is fixedly connected to the outer tub 2 to ensure the fixation of the lower toothholder 523. The mounting 11 is also used for mounting other washing machine components. The lower tooth holder 523 is also provided with teeth and slots matched with the tooth socket structure of the connecting member 522 so as to be tightly matched with the connecting member 522 to 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 along 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 planetary 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. It is advantageous for the washing output shaft 551 to transmit the driving force passing through the speed reducing mechanism 54 to the pulsator 4, and the spinning output shaft 552 to transmit the driving force passing 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 holder 523 respectively through sliding, the embodiment of the present invention is provided with a shift lever 7, a first swing lever 8, a washing retractor 14 and a tension spring 15.

The middle part of the shift lever 7 is connected with a first torsion spring rotating shaft 16, the shift lever 7 is rotatably connected on the lower tooth holder 523 through the first torsion spring rotating shaft 16, and the lower tooth holder 523 is fixedly connected with the shell 6. The first torsion spring rotary shaft 16 is used to apply an elastic force to the shift lever 7 that 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 is in contact with the link 522, and the link 522 slides up and down along the dehydration input shaft 532 by the compression spring 524 through the rotation of the lever 7. The lower end of the shift lever 7 is provided with a side limiting rib 71, and when the shift lever 7 is located at the first position, the first swing rod 8 is abutted to the side limiting rib 71 and pushes the shift lever 7 to enable the lower end of the shift lever 7 to be in contact with the shell 6. When the shift lever 7 is located at the second position, the first swing link 8 is not in contact with the side limiting rib 71 of the shift lever 7.

The first swing link 8 is mounted on the housing 6 through a pin shaft. The first swing link 8 is rotatably abutted against the lower end of the shift lever 7, and is used for applying a force to the shift lever 7 to drive the shift lever 7 to rotate towards a first direction, wherein the first direction is a rotating direction for enabling the lower end of the shift lever 7 to be close to the shell 6.

The washing puller 14 is connected to the lower end of the shift lever 7 by a tension spring 15, and the washing puller 14 pulls the shift lever 7 to rotate by the tension spring 15 to change the position of the shift lever 7.

When the shift lever 7 is at the first position, the first swing link 8 abuts against the side limiting rib 71 of the shift lever 7, the lower end of the shift lever 7 is driven to rotate towards the direction close to the shell 6 by the rotation of the first swing link 8, and the washing tractor 14 is at the first limiting position at the moment. The first swing link 8 rotates to overcome the tension of the tension spring 15 to drive the upper end of the shift lever 7 to rotate towards the direction close to the upper gear sleeve 521, so that the shift lever 7 does not apply pressure to the connecting piece 522 any more, the connecting piece 522 slides towards the direction close to the upper gear sleeve 521 along the dehydration input shaft 532 under the action of the compression spring 524 until the connecting piece 522 is matched with the upper gear sleeve 521, at this time, the pulsator washing machine is in a tub washing mode, and the power system 5 controls the inner tub 3 and the pulsator 4 to rotate in the same direction.

When the washing retractor 14 pulls the tension spring 15 so that the tension spring 15 holds the shift lever 7 in the second position, the washing retractor 4 is at the first limit, and the washing retractor 14 applies a force to the lower end of the shift lever 7 by the tension spring 15 to drive the lower end of the shift lever 7 to rotate away from the housing 6, wherein the force is greater than the resultant force of the elastic forces applied to the shift lever 7 by the first torsion spring rotating shaft 16 and the compression spring 524.

The link 522 slides with the upper end of the shift lever 7 to a second position in which it neither engages the upper sleeve 521 nor the lower seat 523 of the shift lever 7. At the moment, the pulsator washing machine is in a hand-rubbing washing mode, the power system 5 controls the inner barrel 3 and the pulsator 4 to rotate reversely, and the position of the deflector rod 7 is changed to realize accurate switching between the washing modes.

When the washing puller 14 pulls the tension spring 15 to make the tension spring 15 hold the shift lever 7 to rotate to the third position away from the housing 6, the shift lever 7 drives the connecting member 522 to slide close to the lower tooth holder 523 until the connecting member 522 is completely meshed 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 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.

In this embodiment, the first swing link 8 abuts against the side limiting rib 71 at the lower end of the shift lever 7, and the rotation of the first swing link 8 drives the lower end of the shift lever 7 to rotate in a direction close to the housing 6, so as to accurately position the first position of the shift lever 7. The first swing rod 8 is abutted against the lower end of the driving lever 7, so that the driving lever 7 can be effectively prevented from being separated from the position of the driving lever 7 due to vibration during washing or dehydration, and accurate positioning and maintaining of the first position of the driving lever 7 by the first swing rod 8 are facilitated. The deflector rod 7 is driven to rotate by the washing tractor 14 driving the tension spring 15, so as to realize accurate positioning of the second position of the deflector rod 7, and the deflector rod 7 is driven to rotate in the direction away from the shell 6 by the washing tractor 14 driving the tension spring 15 until the third position is reached, so as to realize accurate positioning. Thereby realized control connection piece 522 respectively with last tooth cover 521 and the accurate cooperation of lower toothholder 523 through the accurate location of driving lever 7 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 shift control retractor 9 and a brake lever 10. 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 first swing link 8 is fixedly connected to the brake lever 10 and rotates synchronously with the brake lever 10 through the same pin. At the same time, the brake lever 10 is driven by the shift control retractor 9 to rotate reciprocally to open or close the brake band 13. The driving lever 7 is pushed by the rotation of the first swing rod 8 to change the position of the driving lever 7, and the washing mode is accurately switched.

The gear control retractor 9 is connected with a pulling block 12, the gear control retractor 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 the brake rod 10 is located in the limiting opening 121, and the gear control retractor 9 drives the brake rod 10 to rotate in a reciprocating mode through pulling the pulling block 12, so that the brake rod 10 is controlled to rotate in a reciprocating mode better.

The brake band 13 is disposed around the brake housing 541, the brake housing 541 is fixedly connected with the dewatering output shaft 552, the dewatering output shaft 552 is fixedly connected to the inner tub 3 through screws, that is, the brake housing 541 is fixedly connected to the inner tub 3, the brake band 13 is closed when being closed, and the brake band 13 tightly holds the brake housing 541, so as to prevent the brake housing 541 from rotating, and further prevent the inner tub 3 from rotating.

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 control rod rotates to drive the first swing rod 8 to rotate, so that the first swing rod 8 is abutted against the lower end of the shift lever 7, namely the first swing rod 8 is abutted against the side limiting rib 71 at the lower end of the shift lever 7. At this time, the gear control retractor 9 drives the brake lever 10 to continue to rotate, the first swing link 8 overcomes the elastic force applied by the tension spring 15 to the lower end of the shift lever 7, and pushes the lower end of the shift lever 7 to rotate towards the direction close to the housing 6 until the gear control retractor 9 moves to the first stroke, and the shift lever 7 reaches the first position. During the rotation of the shift lever 7, the washing retractor 14 is always in the first limit position, and the tension spring 15 is gradually stretched along with the rotation of the shift lever 7. When the shift lever 7 rotates, the shift lever 7 does not press down the connecting member 522, so that the connecting member 522 slides in a direction approaching the upper gear sleeve 521 under the action of the compression spring 524 until the shift lever 7 rotates to the first position. When the deflector rod 7 rotates to the first position, the connecting piece 522 is matched with the upper gear sleeve 521, the pulsator washing machine is in a rotary barrel washing mode, and the inner barrel 3 and the pulsator 4 are controlled to rotate in the same direction through the power system 5. 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 first swing rod 8 is not in contact with the driving lever 7, and the first swing rod 8 does not exert force on the driving lever 7 any more. The resultant force exerted by the compression spring 524 and the first torsion spring spindle 16 on the shift lever 7 is opposite in direction to the elastic force exerted by the tension spring 15 on the shift lever 7, and is of the same magnitude so that the shift lever 7 is in the second position in which it neither engages with the upper gear sleeve 521 nor with the lower gear seat 523. The washing retractor 14 rotates to a first limit during rotation of the shift lever 7 to the second position. The washing tractor 14 controls the tension state of the tension spring 15 to control the force applied by the tension spring 15 to the shift lever 7, thereby precisely controlling the position switching of the shift lever 7. When the shift lever 7 is 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 washing output shaft 551 by the speed reducing mechanism 54, because the connecting member 522 is not engaged with the upper gear sleeve 521 and the lower gear holder 523, the dewatering input shaft 532 engaged with the connecting member 522 through the spline is in a free state, that is, the dewatering input shaft 532 is not locked by the brake belt 13. When 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 and the tension spring 15, the position change of the shift lever 7 is further controlled so as to realize the accurate switching among multiple modes. 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 controller runs to the initial stroke, the brake rod 10 controls the brake belt 13 to brake, and at the moment, the brake belt 13 is in a closed state, thereby playing a role in preventing the inner barrel 3 from rotating.

When the shift lever 7 is located at the third position, the connecting piece 522 is connected with the lower tooth holder 523 in a matching manner, so that the pulsator washing mode that the power system 5 controls only the pulsator 4 to rotate and the inner tub 3 stops rotating is realized. Specifically, during the rotation of the shift lever 7 to the third position, the washing retractor 14 rotates to the second limit position, and the tension spring 15 is in a stretched state by the rotation of the washing retractor 14. The gear control retractor 9 is operated to a second stroke or initial stroke, and in this embodiment, the gear control retractor 9 is operated to the second stroke to rotate the first swing link 8 fixedly connected to the brake lever 10. In the rotating process of the first swing link 8, the first swing link 8 is not in contact with the shift lever 7, so that the first swing link 8 has no force effect on the shift lever 7, the shift lever 7 overcomes the elastic force of the first torsion spring rotating shaft 16 to drive the lower end of the shift lever 7 to rotate towards the direction far away from the shell 6 only under the tensile force action of the tension spring 15 in a stretching state at the moment until the shift lever 7 runs to the third position, the connecting piece 522 is tightly matched with the lower tooth holder 523 under the driving of the shift lever 7, and the motor 51 rotates to drive the washing input shaft 531 to rotate and output power to the impeller 4 through the speed reducing 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 3 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 shift lever 7 is accurately switched, and the accuracy of switching among multiple modes is improved.

In the barrel washing mode, the washing tractor 14 is at the first limit, the tension spring 15 is in the stretching state, and the gear controls the tractor 9 to move to the first stroke. Specifically, in the process that the gear control retractor 9 moves 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 first swing rod 8 rotates for a certain angle along with the brake lever 10 until the first swing rod 8 is in contact with the shift lever 7. After the first swing link 8 contacts with the shift lever 7, the first swing link continues to rotate under the driving of the gear control tractor 9. The first swing link 8 drives the shift lever 7 to rotate against the elastic force of the tension spring 15 until the gear control tractor 9 runs to the first stroke, at this time, the shift lever 7 is at the first position, and the tension spring 15 is gradually stretched from the initial original length state in the process that the shift lever 7 rotates towards the shell 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 piece 522 meshed with the upper gear sleeve 521 to rotate, at this time, the dewatering input shaft 532 in splined connection with the connecting piece 522 correspondingly rotates, and after passing through the speed reducing mechanism 54, the motor 51 rotates to drive the impeller 4 and the inner barrel 3 to synchronously rotate.

In the hand scrubbing mode, the scrubbing tractor 14 is at the first limit position, and the tension spring 15 is at the original length state. The shift lever 7 is located at the second position under the action of the tension spring 15 and the first torsion spring rotating shaft 16, 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 shift lever 7, namely, the connecting piece 522 is not matched with the upper gear sleeve 521 and the lower gear holder 523, and at the moment, the gear control retractor 9 runs to the second stroke. When the inner barrel 3 runs to the second stroke, the brake lever 10 is driven to rotate, the brake belt 13 is in an open state, and the inner barrel 3 is in a free state. The first swing link 8 rotates a certain angle with the brake lever 10. The first swing link 8 is not in contact with the shift lever 7 in the process of the gear control retractor 9 moving to the second stroke, that is, the first swing link 8 is kept unchanged in position under the action of the first torsion spring rotating shaft 16 and the tension spring 15, that is, the shift lever 7 is still in the second position. The motor 51 rotates to drive the washing input shaft 531 to rotate and output power to the pulsator 4 through the speed reducing mechanism 54, and since the coupling 522 is not engaged with the upper rack gear 521 and the lower rack gear 523, the dewatering input shaft 532 splined with the coupling 522 is in a free state, that is, the inner tub 3 is not locked. When washing, the rotation direction of the impeller 4 and the inner tub 3 can be opposite to each other through 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 toothholder 523, the dewatering output shaft 552 engaged with the spline of the connecting member 522 is locked, that is, the inner tub 3 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. In the barrel washing mode, the gear control retractor 9 is powered off, so that the gear control retractor 9 is reset to the initial stroke, the first swing rod 8 has no force on the shift lever 7, the shift lever 7 is at the second position under the action of the tension spring 15 and the first torsion spring rotating shaft 16, and the brake belt 13 is in a closed state and tightly holds the brake housing 541 to prevent the inner barrel 3 from rotating. 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 3 can be rotated. The first swing link 8 is not abutted to the shift lever 7 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 runs from the first limit to the second limit. 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 first swing rod 8 does not apply force to the shift lever 7, 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 stretching state is changed into the original length state. The shift control retractor 9 is in the second stroke so that the brake band 13 is in the open state so that the inner barrel 3 can rotate. The deflector rod 7 is located at the second position when stopping, the first swing rod 8 is not abutted to the deflector rod 7 at the moment, the connecting piece 522 is not matched with the upper gear sleeve 521 and the lower gear seat 523 at the moment, and the driving motor 51 rotates to realize accurate switching of the pulsator washing mode into the hand rubbing 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. The gear control tractor 9 runs from the second stroke to the first stroke, the first swing rod 8 exerts force on the shift lever 7, and then the pressure of the shift lever 7 on the connecting piece 522 is gradually reduced until the shift lever 7 is separated from the connecting piece 522, the connecting piece 522 slides towards the direction close to the upper gear sleeve 521, when the connecting piece 522 is accurately matched with the upper gear sleeve 521, the shift lever 7 is in the first position, and the motor 51 rotates to realize the accurate switching of the pulsator washing mode into the rotary barrel 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 changes from the original length state to the stretching state. The shift lever 7 rotates to drive the connecting member 522 to slide to be matched with the lower toothholder 523, and at this time, the dewatering input shaft 532 is locked, that is, the inner barrel 3 is locked. The gear position controls the tractor 9 to be in the second stroke so as to ensure that the first swing rod 8 does not exert force on the deflector rod 7, 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 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 first swing rod 8 exerts force on the shift lever 7, so that the pressure of the shift lever 7 on the connecting piece 522 is gradually reduced until the shift lever 7 is separated from the connecting piece 522, the connecting piece 522 slides towards the direction close to the upper gear sleeve 521, when the connecting piece 522 is accurately matched with the upper gear sleeve 521, the shift lever 7 is in the first position, and the motor 51 rotates to realize the accurate switching of the hand washing mode to the rotary barrel washing mode.

The above embodiments are only 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 think of changes or substitutions within the technical scope of the present invention, and all 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 (10)

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;

the first swing rod is in rotatable abutting connection with the lower end of the driving lever; and

the washing tractor is connected at the lower end of the shifting lever through a tension spring, and the washing tractor pulls the shifting lever to rotate so as to change the position of the shifting lever through the tension spring.

2. The pulsator washing machine according to claim 1,

when the shifting lever is at the first position, the first swing rod is abutted against the lower end of the shifting lever to apply elastic force capable of driving the lower end of the shifting lever to rotate towards the direction close to the shell, and the power system controls the inner barrel and the impeller to rotate in the same direction;

when the pulling rod is pulled by the tension spring to be at the second position, the power system controls the inner barrel and the impeller to rotate reversely;

when the deflector rod is at the third position, the power system controls only the impeller to rotate, and the inner barrel is static.

3. The pulsator washing machine according to claim 2,

also comprises

A gear control tractor; and

one end of the brake rod is connected with the gear control tractor, the other end of the brake rod is connected with a brake belt, the gear control tractor controls the brake rod to rotate in a reciprocating mode, and the first swing rod is fixedly connected to the brake rod and rotates synchronously with the brake rod.

4. The pulsator washing machine according to claim 3,

when the gear control tractor runs to a first stroke, the first swing rod is abutted against the lower end of the shifting rod so that the shifting rod is located at a first position;

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

5. The pulsator washing machine according to claim 3,

when the gear control tractor runs to the initial stroke, the brake lever controls the brake belt to brake.

6. The pulsator washing machine according to claim 3,

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 rod is located in the limiting opening, and the gear control tractor drives the brake rod to rotate in a reciprocating mode through pulling the pulling block.

7. The pulsator washing machine according to claim 3,

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.

8. The pulsator washing machine according to 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 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.

9. The pulsator washing machine according to claim 1,

when the deflector rod is located at the first position or the second position, the washing tractor runs to the first limit position.

10. The pulsator washing machine according to claim 1,

when the driving lever is in the third position, the washing tractor moves to the second limit position so that the tension spring is in a stretching state, and the tension spring applies elastic force which can drive the lower end of the driving lever to rotate in the direction away from the shell to the lower end of the driving lever.

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