CN110592886A - Washing machine inner barrel locking and dismounting method - Google Patents

Abstract

The invention relates to a locking and disassembling method of an inner barrel of a washing machine, which comprises the following steps: when locking is needed, the locking part passes through the entering part forwards firstly and enables the body part to be located in the entering part, the body part moves from one end of the passing part to the other end and enables the locking part to move in the same direction, and the locking part moves backwards to be matched with the locked part to achieve locking of the locking piece and the locked piece. When unlocking is required, the locking portion moves forward to be separated from the locked portion, the body portion moves back from the other end of the passing portion to one end and causes the locking portion to move in the same direction, and the locking portion and the body portion move backward so that both leave the entrance portion.

Description

Washing machine inner barrel locking and dismounting method

Technical Field

The invention relates to a washing machine, in particular to a locking and disassembling method for an inner barrel of a washing machine.

Background

After the washing machine is used for a period of time, the appearance looks bright as new, but dirt and filth are hidden in the space between the outer wall of the inner barrel and the inner wall of the outer barrel, the dirt contains harmful bacteria, and if the dirt is not removed in time, the damage to the health of people can be caused.

The prior art mainly comprises the following modes and the following defects for removing dirt between an inner barrel and an outer barrel:

(1) the inner barrel is taken out to be cleaned in the existing physical disassembly mode, so that dirt can be completely and thoroughly removed, but common consumers cannot disassemble or disassemble easily, and the cleaning machine cannot be widely popularized.

(2) In the prior art, the dirt can be cleaned by using a cleaning agent, but the cleaning effect of the cleaning agent is poor in practice, and the cleaning effect cannot be checked by naked eyes or equipment after the cleaning.

(3) The Chinese patent application: a washing machine convenient for cleaning, application No.: 2019101348908, which discloses that the inner barrel can move relative to the outer barrel, but generally requires a person to manually pull out or push in the inner barrel, and cannot automatically extend or retract the inner barrel by control commands.

(4) The Chinese patent application: a washing machine convenient for cleaning, application No.: 2019101348908, which discloses that the inner barrel can move relative to the outer barrel, the locking mechanism between the inner and outer barrels is overly complex and takes up too much space.

(5) The Chinese patent application: a washing machine convenient for cleaning, application No.: 2019101348908, the patent discloses that the inner cylinder can move relative to the outer cylinder, but the stability and smoothness of the two running by the guiding mode of the matching of the sliding piece and the sliding rail need to be improved.

(6) When the inner drum of the washing machine is pulled out of the outer drum, the inner drum and the outer drum need to be freely separated, but when the inner drum returns to the outer drum after washing, the locking relation between the inner drum and the outer drum needs to be ensured, otherwise, when the inner drum rotates at high speed, the inner drum can be displaced relative to the outer drum, and the safe use of the washing machine is influenced.

(7) The inventor of the present application has previously found that the locking mechanism of the related application requires the provision of a bearing to ensure that the components between the power unit and the bearing are not affected by the rotation of the motor drive member, but the outer race or inner race of the bearing is susceptible to wear under high speed rotational movement, which tends to affect the life of itself and the washing machine.

Disclosure of Invention

The invention designs a locking and dismounting method for an inner barrel of a washing machine, which solves the technical problems that in the prior art, a bearing is required to be arranged to ensure that parts between a power device and the bearing are not influenced by the rotation of a motor transmission part, but an outer ring or an inner ring of the bearing is easy to wear under high-speed rotation motion, the service life of the bearing and the service life of the washing machine are easy to influence, and a locking structure with more stable use is required.

In order to solve the technical problems, the invention adopts the following scheme:

a locking method for an inner drum of a washing machine comprises the following steps: when locking is needed, the locking part passes through the entering part forwards firstly and enables the body part to be located in the entering part, the body part moves from one end of the passing part to the other end and enables the locking part to move in the same direction, and the locking part moves backwards to be matched with the locked part to achieve locking of the locking piece and the locked piece.

Preferably, when unlocking is required, the locking portion moves forward to be separated from the locked portion, the body portion moves back from the other end of the passing portion to one end and causes the locking portion to move in the same direction, and the locking portion and the body portion move backward to cause both to leave the entrance portion.

A method for disassembling an inner barrel of a washing machine comprises the following steps: when unlocking is required, the locking portion moves forward to be separated from the locked portion, the body portion moves back from the other end of the passing portion to one end and causes the locking portion to move in the same direction, and the locking portion and the body portion move backward so that both leave the entrance portion.

A locking method for an inner drum of a washing machine comprises the following steps:

step 1, a first motor (11) works to enable a driving device to directly act or indirectly act on a transmission piece (23), so that the transmission piece (23) moves downwards, and a spring (31) is compressed;

step 2, when the transmission piece (23) moves downwards, the locking column body (33) is also driven to move downwards and enter the large hole (37) in the inner cylinder (4), the thick part of the locking column body (33) is ensured to extend out of the large hole (37), and the thin part of the locking column body (33) is positioned in the large hole (37);

step 3, rotating the inner cylinder (4) to enable the thin part of the locking cylinder (33) to enter the small hole (35) through the communication channel (36) through the thin part of the locking cylinder (33) entering the small hole (36);

and 4, starting the first motor (11) to work again, enabling the driving device to leave the transmission piece 23, enabling the transmission piece 23 to reset upwards under the help of the spring 31, enabling the locking cylinder 33 to move upwards and enabling the thick part of the locking cylinder to be clamped in the clamping groove (34), and completing locking and unlocking of the transmission piece 23 and the inner cylinder (4) by the locking and unlocking device.

A method for disassembling an inner barrel of a washing machine comprises the following steps: step 5, starting the first motor (11), so that the driving device directly acts or indirectly acts on the transmission piece (23), the transmission piece (23) moves downwards, and the spring (31) is compressed;

step 1, the driving piece (23) moves downwards to drive the thick part of the locking cylinder (33) to leave the clamping groove (34);

step 2, rotating the inner cylinder (4) reversely to enable the thin part of the locking cylinder (33) to enter the large hole (37) from the small hole (35) through the communication channel (36);

step 3, starting the first motor (11) to work again, so that the driving device leaves the transmission piece (23), the transmission piece (23) resets upwards under the help of the spring (31), and the locking cylinder (33) also moves upwards and completely leaves the large hole (37);

and 4, disassembling the inner cylinder (4) from the outer cylinder (5), and cleaning and disinfecting.

A washing machine for locking an inner cylinder and an outer cylinder by means of elastic potential energy comprises an inner cylinder (4) and an outer cylinder (5), wherein the inner cylinder (4) is positioned in the outer cylinder (5); the inner cylinder rotation driving motor (21) is arranged at the bottom of the outer cylinder (5) and drives a motor shaft (22) to rotate; the transmission element (23; 81) can be locked in the motor shaft hole and is directly or indirectly connected with the inner cylinder (4), and the inner cylinder rotation driving motor (21) enables the inner cylinder (4) to rotate by acting on the transmission element (23; 81); the locking and unlocking device is used for locking or unlocking the transmission piece (23; 81); the elastic device is used for resetting the transmission piece (23; 81) after locking or unlocking or is used for enabling the locking and unlocking device to enter a locking state or an unlocking state.

Preferably, the locking device further comprises a driving device, and the driving device enables the locking and unlocking device to enter a locking state or enables the locking and unlocking device to enter an unlocking state.

Preferably, the locking and unlocking device comprises a locking part and a locked part, the locking part is arranged on the transmission part (23) or the inner cylinder (4), and correspondingly, the locked part is arranged on the inner cylinder (4) or the transmission part (23).

Preferably, the locking member includes a locking portion and a body portion, the locking portion having a volume greater than a volume of the body portion; the locked part comprises an entering part, a passing part and a locked part, and the passing part is positioned between the entering part and the locked part; when locking is needed, the locking part passes through the entering part forwards firstly and enables the body part to be located in the entering part, the body part moves from one end of the passing part to the other end and enables the locking part to move in the same direction, and the locking part moves backwards to be matched with the locked part to realize locking of the locking piece and the locked piece; or, when unlocking is required, the locking portion moves forward to be separated from the locked portion, the body portion moves back from the other end of the passing portion to one end and causes the locking portion to move in the same direction, and the locking portion and the body portion move backward to cause both to leave the entrance portion.

Preferably, the elastic device is a spring (31), the spring (31) is in a compressed state or a stretched state when the transmission member (23) is acted on by the driving device, and the spring (31) assists the transmission member (23) to reset when the driving device does not act on the transmission member (23).

Preferably, the driving device comprises a first motor (11), a rotating shaft (12) and an eccentric wheel (13), the first motor (11) drives the rotating shaft (12) to rotate, the rotating shaft (12) is connected with an eccentric wheel (13) or a cam or a lug, and the rotating eccentric wheel (13) or the cam or the lug directly or indirectly acts on the transmission piece (23) to move.

Preferably, the locking and unlocking device comprises a clamping part (82), one or more movable locking parts (84) and a reducing space (85), the clamping part (82) is positioned on the transmission part (81), the radial sectional area of one side of the clamping part (82) facing the outer cylinder (5) is larger than that of the other parts of the clamping part (82), and the one or more movable locking parts (84) are pushed by the reducing space (85) to form a through hole with variable sectional areas; the diameter-variable space (85) is positioned in the motor shaft hole and at least comprises a locking part and a releasing part, and when one or more movable locking pieces (84) are positioned at the locking part, the sectional area of the through hole is smaller than the maximum radial sectional area of the clamping part (82) so as to block the transmission piece (81) from passing and realize locking; when the movable locking piece (84) is located at the releasing position, the cross section area of the through hole is larger than the maximum radial cross section area of the clamping position part (82) so that the transmission piece (81) can be released to realize unlocking. Specifically, the variable diameter space may be a tapered space or a space with a thick end and a thin end.

Preferably, the elastic device is a spring (31), the spring is in a compressed state or an elongated state when the locking and unlocking device is unlocked by the action of the driving device, and when the driving device does not act on the clamping part (82), the spring (31) is elongated or contracted to help the locking and unlocking device to reset and lock the transmission piece (23).

Preferably, the driving device comprises a second motor (71), a moving block (72), a sliding column (73), an inclined sliding groove (74) and a driving portion (77), the second motor (71) drives a screw to rotate, the screw is connected with the moving block (72) through threads, the moving block (72) can move axially along the screw, the sliding column (73) is arranged on the moving block (72), the driving portion (77) is provided with the inclined sliding groove (74), the inclined sliding groove (74) comprises a low position (75) and a high position (76), and the sliding column (73) can move back and forth at the low position (75) and the high position (76), so that the driving portion (77) or the moving block (72) is driven to move linearly and act on the locking and unlocking device.

Preferably, the transmission member comprises an outer transmission member (66) and an inner transmission member (67), the inner transmission member (67) being located in the outer transmission member (66); the outer transmission piece (66) is arranged in a shaft hole of the motor and drives the inner cylinder (4) to rotate, a locking and unlocking device is connected between the inner transmission piece (67) and the outer transmission piece (66), and the locking and unlocking device and the inner cylinder (4) can be locked or unlocked under the action of the inner transmission piece (67); the locking and unlocking device comprises a clamping arm (61), a connecting shaft (62), a fulcrum shaft (63), a clamping jaw (64) and a support (65); one end of the clamping arm (61) is hinged with the inner transmission piece (67) through a connecting shaft (62), the other end of the clamping arm (61) is provided with a clamping jaw (64), the clamping jaw (64) is hinged with a support (65) through a fulcrum shaft (63), and the support (65) is fixed on the outer transmission piece (66); when the inner transmission piece (67) is acted by the driving device, the clamping jaws (64) are opened to unlock the inner cylinder (4), and when the inner transmission piece (67) is not acted by the driving device, the clamping jaws (64) are reset under the action of the elastic device and lock the inner cylinder (4) again.

Preferably, the locking and unlocking device comprises a locking part (9) and a locked part, the locked part is a transmission piece (81), one end of the locking part (9) is a stressed part (91) acted by the driving device, the other end of the locking part (9) is a conical structure formed by combining a plurality of elastic pieces (92), a gap (93) is formed between every two adjacent elastic pieces (92) by taking the circumference as the direction, the elastic pieces (92) jointly form a locking hole (94), and the transmission piece (81) is positioned in the locking hole (94); when the locking part (9) moves along the axial direction of the motor shaft hole, the elastic pieces (92) are extruded by the extrusion piece to ensure that the space of the locking hole (94) becomes smaller so as to lock the transmission piece (81); when the elastic means restores the locking portion (9), the plurality of elastic pieces (92) are not pressed by the pressing member so that the locking hole (94) becomes large in space and the transmission member (81) can be released.

The method for locking and disassembling the inner barrel of the washing machine has the following beneficial effects:

(1) the invention is convenient for separating or combining the inner cylinder and the outer cylinder of the washing machine without using tools and is simple and easy to operate.

(2) The locking mechanism of the washing machine overcomes the defect that a power device and a transmission structure of the existing locking structure need to be converted by a bearing, can realize locking or unlocking of the locking mechanism through the elastic potential energy of the elastic device, ensures the stability of long-time operation of the washing machine, and does not need to worry about the influence of the damage of the bearing on the service life of the washing machine.

Drawings

FIG. 1: the invention realizes the structure schematic diagram of the embodiment 1 of the washing machine with the locking of the inner drum and the outer drum by means of elastic potential energy;

FIG. 2: FIG. 1 is a schematic view of the locking mechanism after the inner barrel is separated;

FIG. 3: a schematic structural diagram of a front lock hole in the first locking and unlocking device;

FIG. 4: a schematic structural diagram of a back lock hole in the first locking and unlocking device;

FIG. 5: a lock rod structure schematic diagram in a second locking and unlocking device;

FIG. 6: a schematic structural diagram of a front lock hole in a second locking and unlocking device;

FIG. 7: a structural schematic diagram of a back lock hole in a second locking and unlocking device;

FIG. 8: the lock rod structure of the third locking and unlocking device is shown schematically;

FIG. 9: a schematic structural diagram of a front lock hole in a third locking and unlocking device;

FIG. 10: a structural schematic diagram of a back lock hole in a third locking and unlocking device;

FIG. 11: the lock rod structure in the fourth locking and unlocking device is shown schematically;

FIG. 12: the structure schematic diagram of a locked part in the fourth locking and unlocking device;

FIG. 13: a structural schematic diagram of a locked part in a fifth locking and unlocking device;

FIG. 14: the invention realizes the locking of the inner and outer cylinders by means of elastic potential energy, and the structure of the locking mechanism in the embodiment 2 of the washing machine is shown schematically;

FIG. 15: the invention realizes the structure schematic diagram of the embodiment 3 of the washing machine with the locking of the inner drum and the outer drum by means of elastic potential energy;

FIG. 16: FIG. 15 is a schematic view of the locking mechanism shown after the inner barrel has been separated;

FIG. 17: the invention realizes the structure schematic diagram of the embodiment 4 of the washing machine with the locking of the inner drum and the outer drum by means of elastic potential energy;

FIG. 18: FIG. 17 is a schematic view of the locking and unlocking device;

FIG. 19: the invention discloses a schematic connection diagram of a motor shaft and a transmission part.

Description of reference numerals:

11 — a first motor; 12-a rotating shaft; 13-an eccentric wheel; 21-inner cylinder rotation driving motor; 22-motor shaft; 221-card slot; 23-a transmission member; 231-a fixture block; 24-a force-receiving portion; 25-a bearing; 26, mounting a sleeve; 31-a spring; 32-a locking bracket; 33-locking cylinder; 331-thick portion; 332-details; 34, a card slot; 35-small holes; 36-a communication channel; 37-macropore; 371-passing hole; 38-a baffle plate; 39-locking the bracket; 391-an entry section; 392-locked portion; 4, an inner cylinder; 5, an outer cylinder;

61-a clamping arm; 62, connecting shaft; 63-fulcrum shaft; 64-a clamping jaw; 65-a support; 66-an outer transmission member; 67 — inner drive member;

71-a second motor; 72-moving block; 73-a sliding column; 74-inclined chute; 75-low position; 76-high position; 77 — a driving part;

81-a transmission member; 82-a clamping part; 83-a first spring limit part; 84 — moving the locking element; 85-reducing space; 86-a tapered hole; 87-a second spring limiting part;

9-a locking portion; 91-a force-receiving part; 92-an elastic sheet; 93-gap.

Detailed Description

The invention is further described below with reference to fig. 1 to 19:

example 1:

as shown in fig. 1 and 2, a washing machine for locking an inner drum and an outer drum by means of elastic potential energy comprises an inner drum 4 and an outer drum 5, wherein the inner drum 4 is positioned in the outer drum 5; and an inner cylinder rotation driving motor 21 provided at the bottom of the outer cylinder 5. The transmission member 23 is disposed in a motor shaft hole of the inner cylinder rotation driving motor 21, and the transmission member 23 is connected to the inner cylinder 4. The locking and unlocking device is used for locking or unlocking the transmission piece 23 and the inner cylinder 4; the elastic means are intended to assist the return of the transmission member 23 after locking or after unlocking. The driving device is used for enabling the locking and unlocking device to enter a locking state or an unlocking state.

The locking and unlocking device is positioned between the transmission piece 23 and the inner barrel 4 and comprises a locking cylinder 33 and a locking hole, the transmission piece 23 is connected with the locking cylinder 33, and the bottom of the inner barrel 4 is correspondingly provided with the locking hole.

The elastic device is a spring 31, the spring 31 is arranged in the shaft hole of the motor, the transmission piece 23 is positioned in the spring 31, the spring is in a compression state or a stretching state when the transmission piece 23 is acted by the driving device, and the spring releases elastic force to help the transmission piece 23 to reset when the driving device does not act on the transmission piece 23. Further, a bearing 25 and a seal ring are provided between the motor shaft 22 and the mounting sleeve 26.

The lower part of the driving member 23 is connected with a locking bracket 32, and a locking cylinder 33 is arranged on the locking bracket 32. The upper end of the spring 31 is limited by the force-receiving portion 24, and the lower end of the spring 31 can be limited by the opening portion at the lower portion of the motor shaft 22.

The driving device comprises a first motor 11, a rotating shaft 12 and an eccentric wheel 13, wherein the rotating shaft 12 is driven by the first motor 11 to rotate, the rotating shaft 12 is connected with an eccentric wheel 13 or a cam, and the rotating eccentric wheel 13 or the cam directly acts or indirectly acts on the driving piece 23 to move.

The locking and unlocking device comprises a locking piece and a locked piece, wherein the locking piece is a locking cylinder 33, the locking cylinder 33 comprises a thick part and a thin part, the thick part is a locking part, and the thin part is a body part; the locked part is a lock hole, the lock hole comprises a large hole 37, a communication channel 36 and a clamping groove 34, the large hole 37 is an entrance part, the communication channel 36 is a passing part, and the clamping groove 34 is the locked part; the small hole 35 is communicated with the large hole 37 through a communication channel 36, the large hole 37 can allow both thick parts and thin parts of the locking column body 33 to pass through, the bottom of the clamping groove 34 is provided with the small hole 35, the cross section area of the clamping groove 34 is larger than that of the small hole 35 and can allow the thick parts to enter, and the gap of the communication channel 36 only allows the thin parts to pass through but not the thick parts.

The locking and unlocking device in embodiment 1 operates on the following principle:

locking:

1. the first electric motor 11 is operated so that the eccentric 13 or cam acts directly or indirectly on the force-receiving part 24 above the transmission member 23, transmitting the member 23, so that the transmission member 23 moves downwards and the spring 31 is compressed.

2. The downward movement of the actuator 23 also causes the locking cylinder 33 to move downwardly into the large bore 37 in the inner barrel 4 and ensures that the thicker part of the locking cylinder 33 extends out of the large bore 37 and the thinner part of the cylinder 33 is located in the large bore 37.

3. The inner barrel 4 is rotated so that the thin portion of the locking cylinder 33 enters through the communication passage 36 to the thin portion of the locking cylinder 33 enters through the communication passage 36 into the small hole 35.

4. The first motor 11 is started again to work, so that the eccentric wheel 13 or the cam leaves the transmission piece 23, the transmission piece 23 is reset upwards under the help of the spring 31, at the moment, the locking cylinder 33 also moves upwards and enables the thick part of the locking cylinder to be clamped in the clamping groove 34, and the locking and unlocking device is completed to lock the transmission piece 23 and the inner cylinder 4. Then, the drum rotation driving motor 21 is started to perform washing or spin-drying.

The unlocking steps are as follows:

5. the first electric motor 11 is activated so that the eccentric 13 or cam acts directly or indirectly on the transmission member 23, so that the transmission member 23 moves downwards and the spring 31 is compressed.

6. Downward movement of the driving member 23 also moves the thicker portion of the locking cylinder 33 away from the engaging slot 34;

7. the inner barrel 4 is rotated in the opposite direction so that the narrow section of the locking cylinder 33 passes from the small hole 35 through the communication passage 36 into the large hole 37.

8. Starting the first motor 11 again, the eccentric 13 or cam is moved away from the transmission member 23, and the transmission member 23 is returned upwards with the aid of the spring 31, at which point the locking cylinder 33 is also moved upwards and completely out of the large hole 37.

9. The inner cylinder 4 is removed from the outer cylinder 5 and cleaned and sterilized. This step may be performed after completion of section 7.

As shown in fig. 5 to 7, the locking and unlocking device includes a locking member and a locked member, the locking member is a locking cylinder 33, the locking cylinder 33 includes a thick portion 331 and a thin portion 332, the thick portion 331 is a locking portion, and the thin portion 332 is a body portion; the locked portion is a lock hole, the lock hole includes a large hole 37, a communicating passage 36 and a card slot 34, the large hole 37 is an entrance portion, the communicating passage 36 is a passage portion, and the card slot 34 is the locked portion.

The thick portion 331 is a cross bar, the thin portion 332 is a vertical bar, and the cross bar and the vertical bar are vertically connected to form a T shape. Correspondingly, the large hole 37 has a rectangular structure, and the clamping groove 34 also has a rectangular structure.

As shown in fig. 8 to 10, the locking and unlocking device includes a locking member and a locked member, the locking member is a locking cylinder 33, the locking cylinder 33 includes a thick portion 331 and a thin portion 332, the thick portion 331 is "L" shaped, the locked portion is a locking hole, a stopper 38 is disposed in the locking hole, the stopper 38 is located between the slot 34 and the passing hole 371, the thin portion 332 can move in the passing hole 371, and the thick portion 331 and the slot 34 cooperate to achieve locking.

As shown in fig. 11 to 13, the locking and unlocking means includes a locking member and a locked member, the locking member is a locking cylinder 33, the locking cylinder 33 includes a thick portion 331 and a thin portion 332, and the thick portion 331 is in an "L" shape. The locked portion is a lock bracket 39, one side of the lock bracket 39 is an entering portion 391, the other side of the lock bracket 39 is a locked portion 392, and a passing portion is formed between the entering portion 391 and the locked portion 392.

The locking bracket 39 is T-shaped in fig. 12, the locking bracket 39 is L-shaped in fig. 13, and the locking portion 392 is of a groove structure.

Example 2:

as shown in fig. 14, a washing machine for locking an inner tub and an outer tub by elastic potential energy includes an inner tub 4 and an outer tub 5, the inner tub 4 being located in the outer tub 5; and an inner cylinder rotation driving motor arranged at the bottom of the outer cylinder 5. The transmission member 66 is disposed in a motor shaft hole of the inner cylinder rotation driving motor 21, and the transmission member 23 is connected to the inner cylinder 4. The locking and unlocking device is used for locking or unlocking the transmission piece and the inner cylinder 4; the elastic device is used for helping the driving part to reset after unlocking. The driving device enables the locking and unlocking device to enter an unlocking state.

The transmission members include an outer transmission member 66 and an inner transmission member 67, the inner transmission member 67 being located within the outer transmission member 66. The outer transmission piece 66 is arranged in the shaft hole of the motor and drives the inner cylinder 4 to rotate, the locking and unlocking device is connected between the inner transmission piece 67 and the outer transmission piece 66, and the locking and unlocking device and the inner cylinder 4 can be locked or unlocked by the inner transmission piece 67.

The locking and unlocking device comprises clamping arms 61, a connecting shaft 62, a fulcrum shaft 63, clamping jaws 64 and a support 65. One end of the clamping arm 61 is hinged with the inner transmission piece 67 through a connecting shaft 62, the other end of the clamping arm 61 is provided with a clamping jaw 64, the clamping jaw 64 is hinged with a support 65 through a fulcrum shaft 63, and the support 65 is fixed on the outer transmission piece 66; when the inner transmission element 67 is acted on by the drive device, the clamping jaws 64 are opened so that the inner cylinder 4 is unlocked, and when the inner transmission element 67 is not acted on by the drive device, the clamping jaws 64 are reset under the action of the elastic device and lock the inner cylinder 4 again.

The elastic device is a spring 31, a mounting hole for mounting the inner transmission piece 67 is formed in the outer transmission piece 66, the spring 31 is sleeved in the inner transmission piece 67 and is located between the outer transmission piece 66 and the inner transmission piece 67, the upper end of the spring 31 is limited by the stress part 24, and the lower end of the spring 31 can be limited by the outer transmission piece 66. The outer transmission member 66 in the figure comprises mounting holes for mounting the inner transmission member 67 and the spring 31 and extensions for connection with the support 65.

The spring 31 is in a compressed or extended state when the inner drive 67 is acted on by the drive means, and when the inner drive 67 is not acted on by the drive means, the spring releases its spring force to assist in resetting the inner drive 67 so that the inner drum 4 is locked again by the jaws 64.

The driving device comprises a third motor, a rotating shaft and an eccentric wheel, wherein the first motor drives the rotating shaft to rotate, the rotating shaft is connected with an eccentric wheel or a cam, and the rotating eccentric wheel or cam directly acts or indirectly acts on the driving piece 23.

The locking and unlocking device in embodiment 2 operates on the following principle:

1. the third motor is activated so that the eccentric or cam acts directly or indirectly on the inner transmission member 67, so that the inner transmission member 67 moves downwards, while the spring 31 is also compressed.

2. The inner drive 67 is moved downwardly so that the jaws 64 rotate about the fulcrum shafts 63 so that the jaws 64 open to release the inner cartridge 4 so that the inner cartridge 4 can be easily removed, cleaned and sterilized.

3. The cleaned inner cylinder 4 is placed at the original position, the third motor is started again, the eccentric wheel or the cam leaves the inner transmission piece 67, the spring 31 is reset, the inner transmission piece 67 moves upwards, the clamping jaws 64 rotate reversely around the fulcrum shafts 63 and clamp the inner cylinder 4 again to complete the locking of the transmission piece 23 and the inner cylinder 4.

4. Then, the drum rotation driving motor 21 is started to perform washing or spin-drying.

Example 3:

as shown in fig. 15 and 16, a washing machine for locking an inner tub and an outer tub by means of elastic potential energy includes an inner tub 4 and an outer tub 5, the inner tub 4 being located in the outer tub 5; an inner cylinder rotation driving motor 21 provided at the bottom of the outer cylinder 5; a transmission member 81 disposed in a motor shaft hole of the inner cylinder rotation driving motor 21, the transmission member 81 being connected to the inner cylinder 4; the locking and unlocking device is used for locking or unlocking the transmission piece 81; the elastic means is used to help the driving member 81 to help the locking and unlocking means to enter the locking state.

The locking and unlocking device comprises a clamping part 82, a movable locking part 84 and a reducing space 85, wherein the clamping part 82 is positioned on the transmission part 81, the transmission part 23 is connected with the inner cylinder 4, and the radial sectional area of the clamping part 82 is larger than that of the transmission part 81 of the adjacent part so as to ensure that the clamping part 82 can be blocked by the movable locking part 84 in a locking state. The radial cross-sectional area of the detent portion 82 toward the outer cylinder 5 is larger than the radial cross-sectional area of the other portions of the detent portion 82.

A plurality of movable locking pieces 84 are pushed by the diameter-variable space 85 to form through holes with variable sectional areas; the diameter-variable space 85 is located in the motor shaft hole and at least comprises a locking part and a releasing part, when the plurality of movable locking parts 84 are located at the locking part, the sectional area of the through hole is smaller than the maximum radial sectional area of the clamping part 82, so that the transmission member 81 can be prevented from passing through to realize locking; when the movable locking member 84 is located at the releasing position, the sectional area of the through hole is larger than the maximum radial sectional area of the retaining portion 82, so that the transmission member 81 can be released to unlock.

The working principle is as follows: the diameter-variable space 85 is a tapered structure, the tapered structure will act on the movable locking piece 84 to make the movable locking piece 84 move horizontally, when the movable locking piece 84 is located at the detailed part (top) of the tapered structure, the area of the circular cross section at the position becomes smaller, the movable locking piece 84 or the movable locking pieces 84 are pushed by the tapered structure, so that the cross section of the through hole between the movable locking pieces 84 will also become smaller, and the clamping part 82 cannot pass through. Conversely, when the movable lock 84 is located at the thick portion (bottom portion) of the tapered structure where the circular sectional area becomes large, the movable lock 84 or the plurality of movable locks 84 is released by the tapered structure, and thus the sectional area of the through hole between the movable locks 84 becomes large, so that the passage of the trap portion 82 is possible.

Specifically, the moving lock 84 may be an annular structure formed by a plurality of balls, and when the plurality of balls are located at the locking portion, the plurality of balls form through holes that become small so that the click portion 82 cannot pass therethrough to achieve locking, and when the plurality of balls are located at the releasing portion, the plurality of balls form through holes that become large so that the click portion 82 can pass therethrough to achieve unlocking.

The elastic device is a spring 31, the spring 31 is arranged in the shaft hole of the motor, the transmission piece 81 is positioned in the spring 31, the spring is in a compressed state or an elongated state when the locking and unlocking device is unlocked by the action of the driving device, and when the driving device does not act on the clamping part 82, the spring 31 is elongated or contracted to help the locking and unlocking device to reset and lock the transmission piece 23.

The movable lock 84 is provided with a first spring stopper 83, a second spring stopper 87 is provided in an opening of a lower portion of the motor shaft 22, and the spring 31 is held between the first spring stopper 83 and the second spring stopper 87.

The driving device of the present invention can have the following two structures:

the structure 1 and the driving device include a second motor 71, a screw, a moving block 72, a strut 73, an inclined slide groove 74, and a driving portion 77. The second motor 71 drives the screw to rotate, the screw is connected with the moving block 72 through threads and enables the moving block 72 to move axially along the screw, a sliding column 73 is arranged on the moving block 72, the driving portion 77 is provided with an inclined sliding groove 74, the inclined sliding groove 74 comprises a low position 75 and a high position 76, and the sliding column 73 can move back and forth at the low position 75 and the high position 76, so that the driving portion 77 is driven to move vertically and acts as a locking and unlocking device.

In the above configuration, the second motor 71 does not move, and the driving portion 77 can move in the vertical direction. When the spool 73 is in the low position 75, the drive portion 77 of the drive device is disengaged from the transmission member 81. When the spool 73 is in the high position 76, the drive part 77 of the drive device acts on the transmission element 81.

The structure 2 and the driving device include a second motor 71, a screw, a moving block 72, a strut 73, an inclined slide groove 74, and a driving portion 77. The second motor 71 drives the screw to rotate, the screw is connected with the moving block 72 through threads and enables the moving block 72 to move axially along the screw, a sliding column 73 is arranged on the moving block 72, the driving portion 77 is provided with an inclined sliding groove 74, the inclined sliding groove 74 comprises a low position 75 and a high position 76, and the sliding column 73 can move back and forth at the low position 75 and the high position 76, so that the moving block 72 is driven to move linearly and acts as a locking and unlocking device.

In the above configuration, the driving unit 77 does not move, and the second motor, the screw, and the moving block 72 can move in the vertical direction. When the strut 73 is in the low position 75, the moving block 72 of the drive acts on the transmission member 81. When the strut 73 is in the raised position 76, the moving block 72 of the drive is disengaged from the transmission member 81.

The motor shaft hole is a tapered hole 86, and correspondingly, the transmission member 81 is also tapered so that the transmission member 81 is matched with the tapered hole 86.

The locking and unlocking device in embodiment 3 operates on the following principle:

1. the second motor 71 acts on the moving block 72 through the screw, enables the moving block 72 or the driving portion 77 to move in the vertical direction by the relative movement of the strut 73 in the inclined slide groove 74, and when the strut 73 is located at the low position 75 or the high position 76, the moving block 72 or the driving portion 77 moves downward and acts as a locking and unlocking means.

2. The locking/unlocking device in the locked state is acted by the moving block 72 or the driving portion 77, so that the moving lock 84 moves from the locking portion to the releasing portion, and when the moving lock 84 is located at the releasing portion, the transmission member 81 can be released by the sectional area of the through hole being larger than the maximum radial sectional area of the catch portion 82. At this time, the spring 31 is compressed.

3. The transmission piece 81 and the inner cylinder 4 are pulled out for disassembly, cleaning and disinfection.

4. And installing the cleaned transmission piece 81 and the inner cylinder 4 in situ.

5. The second motor 71 acts on the moving block 72 through the screw, moves the moving block 72 or the driving portion 77 upward by the spool 73 moving in the inclined slide groove 74, and when the spool 73 is located at the high position 76 or the low position 75, the moving block 72 or the driving portion 77 moves upward and is separated from the locking and unlocking device.

6. The spring 31 returns the movable lock 84 upward without the moving block 72 or the driving portion 77, and moves the movable lock 84 from the release position to the locking position, and when the movable lock 84 is located at the locking position, the cross-sectional area of the through hole is smaller than the maximum radial cross-sectional area of the detent portion 82, so that the transmission member 81 can be locked.

7. Then, the inner drum 4 is started to rotate the driving motor 21 to wash or spin the clothes.

What needs to be supplemented is: the driving device in embodiment 1 is the same as that in embodiment 2, and the driving device in embodiment 3 is different from that in embodiment 1 and embodiment 2. Both of the above-described different driving devices can be applied to embodiment 1, embodiment 2, and embodiment 3. And the driving means is not limited to the above two forms but may be other types of driving means such as a cylinder driving means, and the like.

Example 4:

as shown in fig. 17, a washing machine for locking an inner tub and an outer tub by elastic potential energy includes an inner tub 4 and an outer tub 5, the inner tub 4 being located in the outer tub 5; an inner cylinder rotation driving motor 21 provided at the bottom of the outer cylinder 5; a transmission member 81 disposed in a motor shaft hole of the inner cylinder rotation driving motor 21, the transmission member 81 being connected to the inner cylinder 4; the locking and unlocking device is used for locking or unlocking the transmission piece 81; the elastic means is used to help the driving member 81 to help the locking and unlocking means to enter the locking state.

The locking and unlocking device comprises a locking part 9 and a locked part, wherein the locked part is a transmission piece 81, one end of the locking part 9 is a stressed part 91 acted by a driven device, and the other end of the locking part 9 is a conical structure formed by combining a plurality of elastic sheets 92; a gap 93 is arranged between two adjacent elastic sheets 92 along the circumferential direction, a locking hole 94 is formed by the elastic sheets 92 together, and the transmission piece 81 is positioned in the locking hole 94; when the locking portion 9 moves axially along the motor shaft hole, the plurality of elastic pieces 92 are pressed by the pressing member so that the locking hole 94 becomes small in space to lock the transmission member 81; when the moving block 72 does not act on the spring 31, the plurality of elastic pieces 92 are not pressed by the pressing member so that the locking hole 94 becomes large in space and the transmission member 81 can be released.

As shown in fig. 18, the lock portion 9 includes a force receiving portion 91, which is a disk structure, which is acted on by the drive portion 77.

As shown in fig. 19, the motor shaft 22 needs to drive the transmission member 23 to rotate together, and the transmission member 23 needs not only to be disposed in the motor shaft hole of the motor shaft 22, but also to be locked. The motor shaft 22 is provided with a locking groove 221, and the transmission member 23 is correspondingly provided with a locking block 231, so that the locking block 231 and the locking groove 221 can rotate together.

The invention is described above with reference to the accompanying drawings, it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims (8)

1. A locking and disassembling method for an inner barrel of a washing machine comprises the following steps: when locking is needed, the locking part passes through the entering part forwards firstly and enables the body part to be located in the entering part, the body part moves from one end of the passing part to the other end and enables the locking part to move in the same direction, and the locking part moves backwards to be matched with the locked part to achieve locking of the locking piece and the locked piece.

2. A method of removing a drum from a washing machine as claimed in claim 1, wherein: when unlocking is required, the locking portion moves forward to be separated from the locked portion, the body portion moves back from the other end of the passing portion to one end and causes the locking portion to move in the same direction, and the locking portion and the body portion move backward so that both leave the entrance portion.

3. A method for disassembling an inner barrel of a washing machine comprises the following steps: when unlocking is required, the locking portion moves forward to be separated from the locked portion, the body portion moves back from the other end of the passing portion to one end and causes the locking portion to move in the same direction, and the locking portion and the body portion move backward so that both leave the entrance portion.

4. A locking method for an inner drum of a washing machine comprises the following steps:

step 1, a first motor (11) works to enable a driving device to directly act or indirectly act on a transmission piece (23), so that the transmission piece (23) moves downwards, and a spring (31) is compressed;

step 2, when the transmission piece (23) moves downwards, the locking column body (33) is also driven to move downwards and enter the large hole (37) in the inner cylinder (4), the thick part of the locking column body (33) is ensured to extend out of the large hole (37), and the thin part of the locking column body (33) is positioned in the large hole (37);

step 3, rotating the inner cylinder (4) to enable the thin part of the locking cylinder (33) to enter the small hole (35) through the communication channel (36) through the thin part of the locking cylinder (33) entering the small hole (36);

and 4, starting the first motor (11) to work again, enabling the driving device to leave the transmission piece 23, enabling the transmission piece 23 to reset upwards under the help of the spring 31, enabling the locking cylinder 33 to move upwards and enabling the thick part of the locking cylinder to be clamped in the clamping groove (34), and completing locking and unlocking of the transmission piece 23 and the inner cylinder (4) by the locking and unlocking device.

5. A method for disassembling an inner barrel of a washing machine comprises the following steps:

step 1, starting a first motor (11), enabling a driving device to directly act or indirectly act on a transmission piece (23), enabling the transmission piece (23) to move downwards, and compressing a spring (31);

step 2, the driving piece (23) moves downwards to drive the thick part of the locking cylinder (33) to leave the clamping groove (34);

step 3, reversely rotating the inner cylinder (4) to enable the thin part of the locking cylinder (33) to enter the large hole (37) from the small hole (35) through the communication channel (36);

and 4, disassembling the inner cylinder (4) from the outer cylinder (5), and cleaning and disinfecting.

6. A method of removing a drum from a washing machine as claimed in claim 7, wherein: between step 3 and step 4 there are the following steps: the first motor (11) is activated again, so that the drive means is moved away from the transmission element (23), the transmission element (23) is reset upwards with the aid of the spring (31), whereupon the locking cylinder (33) is also moved upwards and completely out of the large opening (37).

7. A locking and disassembling method for an inner barrel of a washing machine comprises the following steps:

step 1, a driving device acts on a locking and unlocking device;

step 2, the locking and unlocking device in the locking state is under the action of the driving device, so that the movable locking piece (84) moves from the locking position to the releasing position, and when the movable locking piece (84) is positioned at the releasing position, the sectional area of the through hole is larger than the radial maximum sectional area of the clamping position part (82) to release the transmission piece (81); at this time, the spring (31) is compressed;

and 3, pulling out the transmission piece (81) and the inner barrel (4) for disassembly, cleaning and disinfection.

8. The washing machine inner drum locking and disassembling method according to claim 6, characterized in that:

step 4, carrying out in-situ installation on the cleaned transmission piece (81) and the inner cylinder (4);

step 5, separating the driving device from the locking and unlocking device;

and 6, the spring (31) drives the movable locking piece (84) to reset upwards, the movable locking piece (84) moves from the release position to the locking position, and when the movable locking piece (84) is located at the locking position, the cross section area of the through hole is smaller than the maximum radial cross section area of the clamping position part (82) so that the transmission piece (81) can be locked.