CN106283548B - Door cover opening and closing method of washing machine, automatic opening and closing device and washing machine - Google Patents
Door cover opening and closing method of washing machine, automatic opening and closing device and washing machine Download PDFInfo
- Publication number
- CN106283548B CN106283548B CN201510362313.6A CN201510362313A CN106283548B CN 106283548 B CN106283548 B CN 106283548B CN 201510362313 A CN201510362313 A CN 201510362313A CN 106283548 B CN106283548 B CN 106283548B
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- connecting shaft
- door cover
- washing machine
- shaft sleeve
- spring
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- 238000005406 washing Methods 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 238000001514 detection method Methods 0.000 claims description 26
- 230000009471 action Effects 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 19
- 230000005484 gravity Effects 0.000 claims description 19
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 25
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 231100000681 Certain safety factor Toxicity 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
Abstract
The invention discloses a method for opening and closing a door cover of a washing machine, an automatic opening and closing device of the door cover of the washing machine and the washing machine with the device, wherein the device comprises a clutch mechanism assembly, a workbench, a driving mechanism assembly and a door cover assembly which are arranged on the workbench, and the clutch mechanism assembly comprises a connecting shaft, a connecting shaft sleeve and a clutch spring; the connecting shaft comprises a first connecting shaft part and a second connecting shaft part, the connecting shaft sleeve is concentrically sleeved on the second connecting shaft part of the connecting shaft, the clutch spring comprises a first spring part and a second spring part, and the shell is connected with the door cover of the washing machine; when the connecting shaft rotates along the opening direction of the door cover of the washing machine, the first connecting shaft and the connecting shaft sleeve are respectively in interference fit with the first spring part and the second spring part; when the connecting shaft rotates along the closing direction of the door cover of the washing machine, the connecting shaft sleeve and the second spring part are in a loose state, and the connecting shaft sleeve follows the rotation of the connecting shaft. The device has simple structure, stable operation and good overload protection effect.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a door cover opening and closing method of a washing machine, an automatic opening and closing device and the washing machine.
Background
Usually, the door cover of the washing machine is manually opened and closed, so that the degree of automation is low, and inconvenience is brought to users. Those skilled in the art have begun to develop washing machines with automatic opening and closing of the cover.
Patent document CN1062321C discloses a washing machine having an automatic closing/opening device including a motor mounted at a rear portion of an upper cover of the washing machine, a cam member rotated by the motor and having two protrusions, and a driven member mounted at a rear portion of a foldable cover and having three protrusions for opening/closing the cover by the cam member. Patent document CN204138956U discloses an automatic opening and closing cover of a washing machine, which comprises an upper cover for covering an opening of the washing machine, a driven shaft, a connecting arm, a driving shaft, a control panel seat, a bracket and a driving mechanism, and when the automatic opening and closing cover works, a gear motor drives the driving shaft to rotate so as to drive the connecting arm to rotate, thereby driving one end of the upper cover to slide (roll) on a guide rail, and the other end of the upper cover to lift up and down. However, the automatic cover opening and closing mechanisms of the washing machines have more parts, complex structure and high cost, and the door covers of the washing machines can only be driven by a motor, and the opening and/or closing process cannot be matched with manual operation; in addition, the washing machine door lacks protection for the operator, for example if the clamp is not able to automatically stop or reverse in time when closed; the guide rail is easy to wear, and the service life of the cover of the washing machine is reduced. Moreover, the existing automatic closing/opening device has no overload protection, and can fail or even be damaged once overload occurs due to blocking by foreign objects, misoperation and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a door cover opening and closing method of a washing machine, an automatic door cover opening and closing device of the washing machine and the washing machine using the method or provided with the device.
In order to achieve the above object, in one aspect, the present invention provides a method for opening and closing a door cover of a washing machine, the method adopts a controlled motor to drive a connecting shaft, the connecting shaft comprises a first connecting shaft part and a second connecting shaft part, the second connecting shaft part of the connecting shaft is concentrically sleeved with a connecting shaft sleeve, the first connecting shaft part and the connecting shaft sleeve are wrapped with a clutch spring, the clutch spring comprises a first spring part in interference fit with the first connecting shaft part and a second spring part in interference fit with the connecting shaft sleeve, the connecting shaft sleeve is connected with a shell through an internal spline and an external spline, and the shell is connected with the door cover of the washing machine; when the connecting shaft rotates along the opening direction of the door cover of the washing machine, the first connecting shaft part and the connecting shaft sleeve are respectively in interference fit with the first spring part and the second spring part, and the clutch spring is in a clasping state, so that the connecting shaft and the connecting shaft sleeve are connected into a whole and synchronously rotate; when the connecting shaft rotates along the closing direction of the door cover of the washing machine, the first connecting shaft part is in interference fit with the first spring part, the connecting shaft sleeve and the second spring part relatively slide in a loose state, no torque is transmitted, and the connecting shaft sleeve rotates along with the connecting shaft under the action of the gravity of the door cover of the washing machine or the boosting device; the method opens or closes a washing machine door by controlling a controlled motor to drive rotation of the connection shaft.
In the present invention, the method comprises: 1) Door cover opening working condition of washing machine: the controlled motor switch is connected, the controlled motor is controlled to drive the connecting shaft to rotate in the opening direction of the door cover, the first connecting shaft part and the connecting shaft sleeve are respectively in interference fit with the first spring part and the second spring part, the clutch spring is in a clasping state, the connecting shaft and the connecting shaft sleeve are connected into a whole to synchronously rotate, so that the door cover is opened, and the controlled motor is closed;
2) Closing working condition of door cover of washing machine: the controlled motor switch is connected, the controlled motor is controlled to drive the connecting shaft to rotate in the closing direction of the door cover, the first connecting shaft portion is in interference fit with the first spring portion, the connecting shaft sleeve and the second spring portion relatively slide in a loose state, torque is not transmitted, the door cover rotates along with the rotation of the connecting shaft along with the connecting shaft sleeve under the action of gravity of the door cover, and therefore the door cover is closed, and the controlled motor is closed.
According to the opening and closing method of the door cover of the washing machine, the door cover is opened or closed manually and rapidly in the opening or closing process of the door cover of the washing machine.
In a second aspect, the invention provides an automatic door cover opening and closing device of a washing machine, wherein the device comprises a driving mechanism assembly, a door cover assembly and a workbench, wherein the driving mechanism assembly and the door cover assembly are arranged on the workbench, and the device further comprises a clutch mechanism assembly, wherein the clutch mechanism assembly comprises a connecting shaft, a connecting shaft sleeve and a clutch spring which are connected with the driving mechanism assembly; the connecting shaft comprises a first connecting shaft part and a second connecting shaft part, the connecting shaft sleeve is concentrically sleeved on the second connecting shaft part of the connecting shaft, the clutch spring comprises a first spring part in interference fit with the first connecting shaft part and a second spring part in interference fit with the connecting shaft sleeve, the connecting shaft sleeve is connected with the shell through an internal spline and an external spline, and the shell is connected with the door cover of the washing machine; when the connecting shaft rotates along the opening direction of the door cover of the washing machine, the first connecting shaft part and the connecting shaft sleeve are respectively in interference fit with the first spring part and the second spring part, and the clutch spring is in a clasping state, so that the connecting shaft and the connecting shaft sleeve are connected into a whole and synchronously rotate; when the connecting shaft rotates along the closing direction of the door cover of the washing machine, the clutch spring is in a loose state, the connecting shaft and the clutch spring relatively slide, no torque is transmitted, and the connecting shaft sleeve rotates along with the rotation of the connecting shaft.
The invention also provides a method for opening and closing the door cover of the washing machine, wherein the method adopts a controlled motor to drive a connecting shaft, the connecting shaft comprises a first connecting shaft part and a second connecting shaft part, the second connecting shaft part of the connecting shaft is concentrically sleeved with a connecting shaft sleeve, the first connecting shaft part and the connecting shaft sleeve are wrapped with clutch springs, the clutch springs comprise a first spring part in interference fit with the first connecting shaft part and a second spring part in clearance fit with the connecting shaft sleeve, the connecting shaft sleeve is connected with a shell through an internal spline and an external spline, a tail hook of the second spring part is connected with the shell through a first fixing hole arranged on the shell, and the shell is connected with the door cover of the washing machine; when the connecting shaft rotates along the opening direction of the door cover of the washing machine, the first connecting shaft part is in interference fit with the first spring part, the first connecting shaft part drives the first spring part to rotate along the opening direction of the door cover, and the clutch spring is in a hugging state, so that the second spring part is in interference fit with the connecting shaft sleeve, and the connecting shaft sleeve are connected into a whole and synchronously rotate; when the connecting shaft rotates along the closing direction of the door cover of the washing machine, the first connecting shaft part is in interference fit with the first spring part, and the first connecting shaft part drives the first spring part to rotate along the closing direction of the door cover of the washing machine, so that the connecting shaft sleeve is in clearance fit with the second spring part, and the connecting shaft sleeve rotates along with the connecting shaft under the action of the gravity of the door cover of the washing machine; the method opens or closes a washing machine door by controlling a controlled motor to drive rotation of the connection shaft.
The method comprises the following steps: 1) Door cover opening working condition of washing machine: the controlled motor switch is connected, the controlled motor is controlled to drive the connecting shaft to rotate in the opening direction of the door cover, the first connecting shaft part is in interference fit with the first spring part, the first connecting shaft part drives the first spring part to rotate in the opening direction of the door cover, the clutch spring is in a clasping state, the second spring part is in interference fit with the connecting shaft sleeve, and the connecting shaft sleeve are connected into a whole and synchronously rotate at the moment, so that the door cover is opened, and the controlled motor is closed; 2) Closing working condition of door cover of washing machine: the controlled motor switch is connected, the controlled motor is controlled to drive the connecting shaft to rotate according to the closing direction of the door cover, the first connecting shaft part and the first spring part are in interference fit, the first connecting shaft part drives the first spring part to rotate according to the closing direction of the door cover of the washing machine, the connecting shaft sleeve and the second spring part are in clearance fit and do not transmit moment, the door cover rotates along with the connecting shaft under the action of self gravity, so that the door cover is closed, and the controlled motor is closed.
According to the opening and closing method of the door cover of the washing machine, the door cover is opened or closed manually and rapidly in the opening or closing process of the door cover of the washing machine.
In a fourth aspect, the invention provides an automatic door cover opening and closing device of a washing machine, wherein the device comprises a driving mechanism assembly, a door cover assembly and a workbench, wherein the driving mechanism assembly and the door cover assembly are arranged on the workbench, and the device further comprises a clutch mechanism assembly, wherein the clutch mechanism assembly comprises a connecting shaft, a connecting shaft sleeve and a clutch spring which are connected with the driving mechanism assembly; the connecting shaft comprises a first connecting shaft part and a second connecting shaft part, the connecting shaft sleeve is concentrically sleeved on the second connecting shaft part of the connecting shaft, the clutch spring comprises a first spring part in interference fit with the first connecting shaft part and a second spring part in clearance fit with the connecting shaft sleeve, the connecting shaft sleeve is connected with the shell through an internal spline and an external spline, the tail hook of the second spring part is connected with the shell through a first fixing hole arranged on the shell, and the shell is connected with the door cover of the washing machine; when the connecting shaft rotates along the opening direction of the door cover of the washing machine, the first connecting shaft part is in interference fit with the first spring part, and the clutch spring is in a clasping state, so that the connecting shaft and the connecting shaft sleeve are connected into a whole and synchronously rotate; when the connecting shaft rotates along the closing direction of the door cover of the washing machine, the first connecting shaft part and the first spring part are in interference fit, and the first connecting shaft part drives the first spring part to rotate along the closing direction of the door cover of the washing machine, so that the connecting shaft sleeve and the second spring part are in clearance fit, and under the action of gravity of the door cover assembly, the connecting shaft sleeve rotates along the connecting shaft along the closing direction of the door cover of the washing machine.
In the invention, the mode of installing the door cover assembly on the workbench is not particularly limited, and preferably, the door cover assembly is provided with a door cover pin hole, the clutch mechanism assembly further comprises a shell, the shell is fixedly connected with the connecting shaft sleeve into a whole, the size of the shell is matched with the door cover pin hole, and the shell is inserted into the door cover pin hole and is fixedly connected with the door cover pin hole.
In the invention, the size of the shell is matched with the door cover pin hole, and when the clutch mechanism component is inserted into the door cover pin hole, the circumferential direction is fixed; preferably, a stop is further provided on the housing and is axially positioned by the stop when the clutch mechanism assembly is inserted into the door cover pin aperture.
In the invention, the parameter of the clutch spring can be determined according to the maximum torque required by opening the door cover of the washing machine multiplied by a certain safety coefficient. For example, the maximum torque may be 10-20Nm and the safety factor may be set to 1.2-1.5. When the load torque exceeds the set torque, the inner hole of the clutch spring slides between the connecting shaft and the outer circle of the connecting shaft sleeve, so that the overload protection function is realized.
The overload condition may be: when the door is opened, the door cover is blocked by foreign objects, and foreign objects are blocked between the door cover and the workbench, so that misoperation is caused, the door is forced to be closed, and the like.
In order to further improve the stability and better protection of the automatic door cover opening and closing device of the washing machine, preferably, the driving mechanism assembly further comprises an electromagnetic clutch assembly, and the electromagnetic clutch assembly is used for connecting the driving motor and the speed reducer.
In the present invention, the electromagnetic clutch assembly may include a first gear, a second gear, a third gear, a clutch sleeve, and an electromagnetic coil; the electromagnetic coil can be fixed on the shell of the speed reducer, and the clutch shaft sleeve and the first gear are concentrically sleeved on the electromagnetic coil and can rotate relatively; the first gear is meshed with an output gear of the driving motor, the second gear is meshed with the third gear, and the third gear is meshed with an input gear of the speed reducer; when the electromagnetic coil is electrified, the first gear and the second gear are combined into a whole in a sucking way, so that power can be transmitted; under the condition of power failure, the electromagnetic coil is not attracted to the first gear and the second gear, and can rotate freely, and the driving motor drives the first gear to idle and cannot transmit power. Thus, when the electromagnetic coil is energized, the power of the driving motor is transmitted to the connecting shaft to thereby cover the door assembly.
Preferably, the first gear includes a first gear wheel portion and a flat shaft portion; the clutch shaft sleeve comprises a flat hole part, a round hole part and a clutch plane end; the second gear includes a second gear wheel portion, a gear plane end, and a circular shaft portion.
Preferably, the flat shaft part of the first gear is sleeved in the flat hole part of the clutch shaft sleeve and can drive the clutch shaft sleeve to synchronously rotate; the round shaft part of the second gear is sleeved in the round hole part of the clutch shaft sleeve, and is coaxial with the clutch shaft sleeve and the first gear and can rotate relatively; when the electromagnetic coil is electrified, the clutch plane end of the clutch shaft sleeve and the gear plane end of the second gear are sucked and combined into a whole.
In the present invention, torque is transmitted between the gear plane end and the clutch plane end by friction force, so that the transmission of torque can be adjusted by controlling the intensity of electromagnetic force. For example, the torque that the electromagnetic clutch assembly can transmit can be set according to the actual load and/or the reduction ratio of the speed reducer, when the load torque exceeds the set torque, the attraction force of the electromagnetic coil can not ensure the torque transmission, and the gear plane end and the clutch plane end slip, so that the overload protection function is realized. The overload condition may be the same as described above, and will not be described again here.
In the present invention, the automatic door opening and closing device for a washing machine further includes at least one boosting device when the self weight of the door assembly is insufficient or insufficient to provide sufficient power for closing the door assembly, for example, when the center of gravity of the door assembly is located closer to the rear end of the washing machine in a vertical direction with respect to the connecting shaft, that is, when the door assembly is opened to an open position perpendicular to a horizontal plane even in an open direction is greater. In the invention, when the weight of the door cover assembly is too light, a boosting device can be added according to the requirement.
The boosting device is not particularly limited. The boosting device can push/pull the door cover to move towards the direction of the door cover. For example, the boosting device may be a return spring. Preferably, one end of the return spring is mounted on the door cover assembly, and the other end of the return spring is fixed on the workbench through a fixing hole formed in the workbench. For example, the number of the return springs may be one.
In the invention, the driving mechanism assembly is used for driving the connecting shaft and then driving the door cover assembly to open or close, and the driving mechanism assembly can comprise a driving motor and a speed reducer, and the driving motor transmits power to the release mechanism assembly through the speed reducer.
In the invention, a detection switch for detecting the state of the door cover assembly can be arranged on the workbench. Such as a door opening detection switch and a door closing detection switch, which when the door cover assembly is opened or closed to a set position triggers the corresponding detection switch, causing the driving mechanism to perform an action such as stopping operation. The mounting position of the detection switch is not particularly limited.
In the present invention, the detection switch may be a micro switch, a touch switch, a photoelectric switch, or a magnetron.
In the automatic door cover opening and closing device for the washing machine, the door cover opening switch and the door cover assembly closing switch can be arranged to control the rotation direction of the driving motor of the driving mechanism assembly so as to complete the opening and closing of the door cover assembly. The door assembly opening switch and the door assembly closing switch may be of a type conventionally used in the art.
The driving mechanism, the detection switch, the door cover assembly opening switch and the door cover assembly closing switch can be controlled by a program controller. The programmer may be a programmer conventionally used in the art.
The automatic opening and closing device for the door cover of the washing machine is particularly suitable for the washing machine with the integral type upturned door cover, the type of the washing machine is not particularly limited, and the washing machine can be drum type or pulsator type.
In a fifth aspect, the present invention further provides a washing machine, where the washing machine uses the method for opening and closing a door of the washing machine or is provided with the automatic opening and closing device of the door of the washing machine.
Compared with the prior art, the invention has the advantages and beneficial effects that: 1. the automatic opening and closing device of the door cover of the washing machine has fewer transmission parts and simple structure; 2. the switch can be driven by a motor during the opening process, and can also be manually operated at the same time; 3. when the door is closed, the door is driven by the gravity of the reset spring and the door cover, the force is light, the operation can be stopped in time or the door can be reversely loosened when the door is clamped to hands or foreign matters, damage is avoided, and the door can be closed manually and rapidly; 4. the abrasion of each part is small, and the service life is long; 5. has multiple overload protection effects.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings: fig. 1 is a schematic view illustrating an overall structure of an automatic door cover opening and closing device for a washing machine according to an embodiment of the present invention;
FIG. 2 is a schematic view of a discrete structure of an automatic door opening and closing device of a washing machine according to an embodiment of the present invention;
FIG. 3 is a schematic view showing the structure of a clutch mechanism assembly of an automatic door opening and closing device for a washing machine according to an embodiment of the present invention;
FIG. 4 is a right side view of the schematic of the clutch mechanism assembly of FIG. 3;
fig. 5 is a schematic view illustrating an installation structure of an automatic door cover opening and closing device for a washing machine according to an embodiment of the present invention;
fig. 6 is a schematic view illustrating an installation structure of an automatic door cover opening and closing device for a washing machine according to another embodiment of the present invention;
FIG. 7 is a schematic structural view of the connecting shaft of the clutch mechanism assembly of the present invention and a left side view (right side view) thereof;
FIG. 8 is a schematic structural view of a connecting sleeve of the clutch mechanism assembly of the present invention and a left side view (right side view) thereof;
FIG. 9 is a schematic structural view of the housing of the clutch mechanism assembly of the present invention and a left side view (right side view) thereof;
FIG. 10 is a schematic view of the clutch spring of the clutch mechanism assembly of the present invention;
FIG. 11 is a schematic structural view of an electromagnetic clutch assembly according to the present invention;
FIG. 12 is a schematic view of a portion of the electromagnetic clutch assembly of the present invention;
fig. 13 is a schematic structural view of a first gear of the electromagnetic clutch assembly of the present invention and a left side view (right side view) thereof;
Fig. 14 is a schematic structural view of a clutch sleeve of an electromagnetic clutch assembly of the present invention and a left view (right view) thereof;
fig. 15 is a schematic structural view of a second gear of the electromagnetic clutch assembly of the present invention and a left side view (right side view) thereof;
fig. 16 is a partial schematic view of the return spring mounting structure of fig. 1.
Reference numerals describe 1 drive mechanism components; 11 a driving motor;
12. a speed reducer; 13 an electromagnetic clutch assembly;
131. a first gear; 132a second gear;
133. a third gear; 134 clutch sleeve;
135. an electromagnetic coil; 131a first gear wheel portion;
131b flat shaft portion; 132a second gear wheel portion;
132b gear plane end; 132c a circular shaft portion;
134a flat hole portion; 134b circular hole portions;
134c clutch plane end; 2, a door cover assembly;
21. door cover pin holes; a return spring;
4. a work table; 41 a door opening detection switch;
42. a door closing detection switch; 43 a second fixing hole;
5. a clutch mechanism assembly;
51. a connecting shaft; 52 connecting the shaft sleeve;
521. an external spline; 541 internal splines;
53. a clutch spring; 54 a housing;
55. a nut; a 56 spacer;
57. a stop block; 58 a first securing aperture;
51a first connecting shaft portion; 51b a second connecting shaft portion;
53a first spring portion; 53b second spring portion.
Detailed Description
The following describes specific embodiments of the present invention in detail. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, the controlled motor means a motor capable of controlling start, acceleration, operation, deceleration, stop, rotation direction, and the like according to instructions. The term "interference fit" means that the first spring portion and the second spring portion of the clutch spring are respectively wrapped on the first connecting shaft portion and the connecting shaft sleeve, when the connecting shaft rotates in the opening direction of the door cover, the clutch spring rotates more tightly, the connecting shaft and the connecting shaft sleeve are connected into a whole by friction force to rotate synchronously, when the connecting shaft rotates in the closing direction of the door cover, the first connecting shaft portion and the first spring portion do not slide, the connecting shaft sleeve and the second spring portion relatively slide in a loose state, and the rotation moment cannot be transmitted to the connecting shaft sleeve; or the first spring part of clutch spring is divided into a first connecting shaft part, a second spring part is fixed on the shell of clutch structure assembly, the second spring part is in clearance fit with the connecting shaft sleeve, when the connecting shaft rotates along the opening direction of the door cover, the first connecting shaft part drives the first spring part to rotate, the clutch spring is in a hugging state, the second spring part is in interference fit with the connecting shaft sleeve, at the moment, the connecting shaft and the connecting shaft sleeve are connected into an integral synchronous rotation, and when the connecting shaft rotates along the closing direction of the door cover, the first connecting shaft part drives the first spring part to rotate, so that the connecting shaft sleeve and the second spring part are in clearance fit, and the rotation moment cannot be transmitted to the connecting shaft sleeve.
Embodiment 1 as shown in fig. 1 and 2, the invention provides an automatic door cover opening and closing device of a washing machine, which comprises a driving mechanism assembly 1, a door cover assembly 2 and a workbench 4, wherein the driving mechanism assembly 1 and the door cover assembly 2 are installed on the workbench 4, the driving mechanism assembly 1 comprises a driving motor 11, and a door cover pin hole 21 is formed in the door cover assembly 2.
As shown in fig. 3-5 and 7-9, the device further comprises a clutch mechanism assembly 5, wherein the clutch mechanism assembly 5 comprises a connecting shaft 51, a connecting shaft sleeve 52 and a clutch spring 53 which are connected with the driving mechanism assembly 1; the connecting shaft 51 comprises a first connecting shaft part 51a and a second connecting shaft part 51b, the connecting shaft sleeve 52 is concentrically sleeved on the second connecting shaft part 51b of the connecting shaft 51, the clutch spring 53 comprises a first spring part 53a in interference fit with the first connecting shaft part 51a and a second spring part 53b in interference fit with the connecting shaft sleeve 52, and the connecting shaft 51 and the connecting shaft sleeve 52 can relatively rotate without installing the clutch spring, are axially connected by a nut 55 and a gasket 56, and keep a certain gap so that the axial direction is not dead. The connecting shaft sleeve 52 is connected with the shell through an inner spline 541 and an outer spline 521, and the shell 54 is connected with a door cover of the washing machine; the workbench 4 is provided with a door opening detection switch 41 and a door closing detection switch 42 for detecting the state of the door cover assembly 2. The door opening detection switch 41 and the door closing detection switch are micro switches, touch switches, photoelectric switches or magnetrons. The clutch spring 53 is a helical torsion spring. The housing 54 is also provided with a stop 57 sized to match the door closure pin aperture 21, and is secured circumferentially and axially positioned by the stop 57 provided on the housing 54 when the clutch mechanism assembly 5 is inserted into the door closure pin aperture 21.
The driving mechanism assembly 1 further comprises a speed reducer 12, and the driving motor 11 and the connecting shaft 51 are connected through the speed reducer 12.
As shown in fig. 16, a return spring 3 is disposed between the door cover assembly 2 and the table 4, one end of the return spring 3 is mounted on the door cover assembly 2, and the other end is fixed on the table 4 through a second fixing hole 43 provided on the table 4.
As shown in fig. 10, when the connection shaft 51 rotates in the B direction (the opening direction of the door of the washing machine), the first connection shaft portion 51a and the connection sleeve 52 are respectively interference-fitted with the first spring portion 53a and the second spring portion 53B, the clutch spring 53 is in a clasped state, the connection shaft 51 and the connection sleeve 52 are connected into an integral body by friction force to rotate synchronously, and the rotation moment is transmitted to the connection sleeve 52, thereby completing the opening of the door. When the connection shaft 51 rotates in the a direction (closing direction of the door of the washing machine), the first connection shaft portion 51a is interference fit with the first spring portion 53a, the connection shaft sleeve 52 slides relatively with the second spring portion 53b, no moment is transmitted, and the connection shaft sleeve 52 rotates along with the connection shaft 51 under the action of the own weight of the door and/or the boosting device, thereby closing the door of the washing machine.
In the present invention, the maximum torque that can be transmitted by the clutch spring 53 is determined by parameters such as the spring material stiffness, the number of turns, the amount of elastic deformation, and the like. The parameters of the clutch spring 53 are determined according to the maximum torque required for opening the door of the washing machine multiplied by a certain safety factor. When the load torque exceeds the set torque, the inner hole of the clutch spring 53 slips between the connecting shaft 51 and the connecting shaft sleeve 52, thereby playing a role of overload protection.
Door cover assembly opening process: the door cover assembly is started to open the switch, the driving motor 11 is switched on, the driving motor 11 drives the connecting shaft 51 to rotate in the direction B (the opening direction of the door cover of the washing machine) through the speed reducer 12, the first connecting shaft portion 51a and the connecting shaft sleeve 52 are respectively in interference fit with the first spring portion 53a and the second spring portion 53B, the clutch spring 53 is in a clasping state, and the connecting shaft 51 and the connecting shaft sleeve 52 are connected into a whole by friction force to synchronously rotate. The external spline 521 of the connecting sleeve 52 is fixedly connected with the internal spline 541 of the housing 54, the housing 54 is inserted into the door latch hole 21, and finally the door 2 is rotated in the direction B, thereby realizing the door opening operation. When the door opening detection switch 41 detects that the door cover assembly 2 is in the opening completion state, the driving motor 11 stops operating, and the return spring 3 is tightened.
In the opening process of the door cover assembly, the connecting shaft sleeve 52 is relatively free along the direction B relative to the connecting shaft 51, because the clutch spring 53 is loosened under the condition, manual quick opening can be realized at the moment, and after the door cover assembly is opened, the driving mechanism assembly drives the connecting shaft 51 to rotate along the direction B, the first connecting shaft part 51a and the connecting shaft sleeve 52 are respectively in interference fit with the first spring part 53a and the second spring part 53B, the clutch spring 53 is in a clasping trend, and the door cover assembly 2 cannot rotate towards the closing direction.
In the opening process of the door cover assembly, once the door cover assembly 2 is blocked by foreign objects, foreign objects are blocked between the door cover assembly and the workbench 4, misoperation is performed, forced door closing is performed, and the like, so that the load torque exceeds the torque set by the clutch spring 53 or the electromagnetic clutch assembly 13, the inner hole of the clutch spring 53 slides between the connecting shaft 51 and the outer circle of the connecting shaft sleeve 52, and the overload protection function is realized.
Door cover assembly closing process: the door cover assembly is started to close the switch, the driving motor 11 is switched on, the driving motor 11 drives the connecting shaft 51 to rotate in the direction A (the closing direction of the door cover of the washing machine) through the speed reducer 12, the first connecting shaft portion 51a is in interference fit with the first spring portion 53a, the connecting shaft sleeve 52 and the second spring portion 53b are in a loose state and relatively slide, no torque is transmitted, the connecting shaft sleeve 52 rotates along with the connecting shaft 51 under the action of the reset spring 13 and/or self gravity of the door cover assembly 2, the door cover is closed, and when the door closing detection switch 42 detects that the door cover assembly 2 is in a closing completion state, the driving motor 11 stops running.
In the closing process of the door cover assembly 2, once an object blocks the door cover assembly 2 (such as a hand or clothes), the door cover assembly 2 stops rotating, at this time, the connecting shaft 51 rotates in the direction a, and the connecting shaft sleeve 52 and the second spring portion 53b slide relatively in a loose state, so that no moment is transmitted, and the door cover assembly 2 can be opened manually. In the closing process of the door cover assembly 2, along with the rotation of the connecting shaft 51 in the direction a, the first connecting shaft part 51a is in interference fit with the first spring part 53a, the connecting shaft 51a drives the second spring part 53b to rotate in the direction a, a space is reserved for the connecting shaft sleeve 52 to rotate in the direction a, the door cover assembly 2 is closed along with the connecting shaft sleeve 52 in the direction a, and the connecting shaft sleeve 52 can slowly rotate along with the connecting shaft 51 in the direction a due to the action of the clutch spring 53, so that the speed of the connecting shaft sleeve 52 does not exceed the rotating speed of the connecting shaft 51, the door cover closing process is very stable and not abrupt, and in addition, the acting force and self gravity of the return spring 3 are only applied to the door cover assembly 2, so that the acting force of the driving mechanism assembly 1 is not generated, and no harm is caused to human bodies or clothes.
The driving mechanism assembly, the detection switch, the door cover assembly opening switch (not shown) and the door cover assembly closing switch (not shown) are controlled by a program controller (not shown).
In addition, the washing process is interrupted, and at this time, the connecting shaft sleeve 52 is relatively free in the direction B relative to the connecting shaft 51, so that the door cover assembly 2 can be opened manually, and the odor generated by the fact that the clothes cannot be taken out can be avoided.
Embodiment 2 is the automatic door opening and closing device of a washing machine as in embodiment 1, except that, as shown in fig. 6, the tail hook of the second spring portion 53b of the clutch spring 53 is connected to the housing 54 through a first fixing hole 58 provided on the housing 54, and the second spring portion 53b is in clearance fit with the connecting sleeve 52.
Door cover assembly opening process: the door cover assembly is started to open the switch, the driving motor 11 is switched on, the driving motor 11 drives the connecting shaft 51 to rotate in the direction B (door cover opening direction) through the speed reducer 12, the first connecting shaft portion 51a and the first spring portion 53a are in interference fit, as the tail hook of the second spring portion 53B is fixed on the first fixing hole 58 of the shell 54, the second spring portion 53B gradually shrinks to finally clamp the connecting shaft sleeve 52 along with the rotation of the first spring portion 53a, and after the second spring portion 53B is completely clamped with the connecting shaft sleeve 52, the connecting shaft sleeve 52 and the connecting shaft 51 are connected into an integral synchronous rotation. The external spline 521 of the connecting sleeve 52 is fixedly connected with the internal spline 541 of the housing 54, the housing 54 is inserted into the door latch hole 21, and finally the door 2 is rotated in the direction B, thereby realizing the door opening operation. When the door opening detection switch 41 detects that the door cover assembly 2 is in the opening completion state, the driving motor 11 stops operating.
In the opening process of the door cover assembly, the connecting shaft sleeve 52 is relatively free along the direction B relative to the connecting shaft 51, because the clutch spring 53 is loosened under the condition, manual quick opening can be realized at the moment, and after the door cover assembly is opened, because the driving mechanism assembly drives the connecting shaft 51 to rotate along the direction B, the clutch spring 53 is in a clasping trend, and the door cover assembly 2 cannot rotate towards the closing direction.
In the opening process of the door cover assembly, once the door cover assembly 2 is blocked by foreign objects, foreign objects are blocked between the door cover assembly and the workbench 4, misoperation is performed, forced door closing is performed, and the like, the load torque exceeds the torque set by the clutch spring 53 or the electromagnetic clutch assembly 13, and the clutch spring 53 and the connecting shaft 51 slip, so that the overload protection function is achieved.
Door cover assembly closing process: the door cover assembly is started to close the switch, the driving motor 11 is switched on, the driving motor 11 drives the connecting shaft 51 to rotate in the direction A (door cover closing direction) through the speed reducer 12, the first connecting shaft portion 51a and the first spring portion 53a are in interference fit, the first connecting shaft portion 51a drives the first spring portion 53a to rotate in the direction A, as the tail hook of the second spring portion 53b is fixed on the first fixing hole 58 of the shell 54, the gap between the second spring portion 53b and the connecting shaft sleeve 52 gradually increases along with the rotation of the second spring portion 53b and finally is in clearance fit with the connecting shaft sleeve 52, the connecting shaft sleeve 52 rotates in the direction A along with the connecting shaft 51 under the action of self gravity of the door cover assembly 2 and the reset spring 3, the door cover is closed, when the door cover closing detection switch 42 detects that the door cover assembly 2 is in a closing completion state, and the driving motor 9 stops running.
In the closing process of the door cover assembly 2, once an object blocks the door cover assembly 2 (such as a hand or clothes), the door cover assembly 2 stops rotating, at this time, because the connecting shaft 51 rotates in the direction a, at this time, the outer circle of the connecting shaft 51 and the inner hole of the clutch spring 53 slide relatively, no moment is transmitted, and the door cover assembly 2 can be opened manually. In the closing process of the door cover assembly 2, along with the rotation of the connecting shaft 51 in the direction a, the clutch spring 53 is loosened, a space is reserved for the rotation of the connecting shaft sleeve 52 in the direction a, the door cover assembly 2 is closed along with the connection shaft sleeve 52 in the direction a, and due to the effect of the clutch spring 53, the connecting shaft sleeve 52 can slowly rotate along with the connecting shaft 51 in the direction a at the moment, the speed of the connecting shaft sleeve 52 cannot exceed the speed of the connecting shaft 51, so that the door cover closing process is very stable and not abrupt, and in addition, no damage is caused to human bodies or clothes due to the action force of the driving mechanism assembly 1.
The driving mechanism assembly, the detection switch, the door cover assembly opening switch (not shown) and the door cover assembly closing switch (not shown) are controlled by a program controller (not shown).
In addition, the washing process is interrupted, and at this time, the connecting shaft sleeve 52 is relatively free in the direction B relative to the connecting shaft 51, so that the door cover assembly 2 can be opened manually, and the odor generated by the fact that the clothes cannot be taken out can be avoided.
Embodiment 3 the automatic door cover opening and closing device of a washing machine as in embodiment 1 is different in that the driving mechanism assembly 1 further comprises an electromagnetic clutch assembly 13, and the electromagnetic clutch assembly 13 is connected with the driving motor 11 and the decelerator 12.
As shown in fig. 11-14, the electromagnetic clutch assembly 13 includes a first gear 131, a second gear 132, a third gear 133, a clutch sleeve 134, and an electromagnetic coil 135. The electromagnetic coil 135 is fixed on the casing of the speed reducer 12, and the clutch sleeve 134 and the first gear 131 are concentrically sleeved on the electromagnetic coil 135 and can rotate relatively. The first gear 131 is meshed with an output gear of the driving motor 11, the second gear 132 is meshed with the third gear 133, and the third gear
133 are meshed with the input gears of the speed reducer 12. When the electromagnetic coil 135 is energized, the first gear 131 and the second gear 132 are combined together, so that power can be transmitted; in the case of power failure, the electromagnetic coil 135 is not engaged with the first gear 131 and the second gear 132, and can rotate freely, and the driving motor 11 drives the first gear 131 to idle, so that power cannot be transmitted.
As shown in fig. 13, the first gear 131 includes a first gear wheel portion 131a and a flat shaft portion 131b.
As shown in fig. 14, the clutch hub 134 includes a flat hole portion 134a, a circular hole portion 134b, and a clutch flat end 134c.
As shown in fig. 15, the second gear 132 includes a second gear wheel portion 132a, a gear plane end 132b, and a circular shaft portion 132c.
The flat shaft portion 131b of the first gear 131 is sleeved in the flat hole portion 134a of the clutch shaft sleeve 134, and can drive the clutch shaft sleeve 134 to rotate synchronously. The circular shaft portion 132c of the second gear 132 is fitted into the circular hole portion 134b of the clutch sleeve 134, and is held coaxially and rotatable with respect to the clutch sleeve 134 and the first gear 131. When the electromagnetic coil 135 is energized, the clutch collar 134 and the gear plane end 132b of the second gear 132 are attracted and integrated, and thus integrated with the first gear 131.
Door cover assembly opening process: the door cover assembly is started to open the switch, the driving motor 11 and the electromagnetic coil 134 are simultaneously switched on, the first gear 131 and the second gear 132 are combined into a whole in a sucking mode, the driving motor 11 drives the connecting shaft 51 to rotate in the direction B through the electromagnetic clutch assembly 13 and the speed reducer 12, the first connecting shaft portion 51a and the connecting shaft sleeve 52 are in interference fit with the first spring portion 53a and the second spring portion 53B respectively, the clutch spring 53 is in a holding mode, and the connecting shaft 51 and the connecting shaft sleeve 52 are connected into a whole to synchronously rotate due to friction force. The external spline 521 of the connecting sleeve 52 is fixedly connected with the internal spline 541 of the housing 54, the housing 54 is inserted into the door latch hole 21, and finally the door 2 is rotated in the direction B, thereby realizing the door opening operation. When the detection switch 41 detects that the door cover assembly 2 is in the opening completion state, the driving motor 11 and the electromagnetic clutch assembly 13 stop running, and at this time, the return spring 3 is tightened.
In the opening process of the door cover assembly, the connecting shaft sleeve 52 is relatively free along the direction B relative to the connecting shaft 51, because the clutch spring 53 is loosened under the condition, manual quick opening can be realized at the moment, and after the door cover assembly is opened, the driving mechanism assembly drives the connecting shaft 51 to rotate along the direction B, the first connecting shaft part 51a and the connecting shaft sleeve 52 are respectively in interference fit with the first spring part 53a and the second spring part 53B, the clutch spring 53 is in a clasping trend, and the door cover assembly 2 cannot rotate towards the closing direction.
In the opening process of the door cover assembly, once the door cover assembly 2 is blocked by foreign objects, foreign objects are blocked between the door cover assembly and the workbench 4, misoperation is performed, the door is forced to be closed, and the like, so that the load torque exceeds the torque set by the clutch spring 53, the inner hole of the clutch spring 53 slides between the connecting shaft 51 and the outer circle of the connecting shaft sleeve 52, and the overload protection function is realized; once the door cover assembly 2 is blocked by foreign objects, foreign objects are blocked between the door cover assembly and the workbench 4, misoperation is performed, forced door closing is performed, and the like, so that the load torque exceeds the torque set by the electromagnetic clutch assembly 13, the attraction force of the electromagnetic coil 134 cannot ensure torque transmission, and the gear plane end 132b of the second gear 132 and the clutch plane end 134c of the clutch sleeve 134 slip, so that the overload protection function is realized. The set torque of the clutch spring 53 and the set torque of the electromagnetic clutch assembly 13 may be the same or different.
Door cover assembly closing process: the door cover assembly is started to close the switch, the driving motor 11 and the electromagnetic coil 134 are simultaneously connected, the first gear 131 and the second gear 132 are combined into a whole in a sucking mode, the driving motor 11 drives the connecting shaft 51 to rotate in the A direction through the electromagnetic clutch assembly 13 and the speed reducer 12, the first connecting shaft portion 51a is in interference fit with the first spring portion 53a, the connecting shaft sleeve 52 and the second spring portion 53b are in a loose state and relatively slide, torque is not transmitted, the door cover assembly 2 rotates along with the rotation of the connecting shaft 51 under the action of the reset spring 13 and self gravity, the door cover is closed, and when the detection switch 42 detects that the door cover assembly 2 is in a closing completion state, and the driving motor 11 and the electromagnetic clutch assembly 13 stop running.
In the closing process of the door cover assembly 2, once an object blocks the door cover assembly 2 (such as a hand or clothes), the door cover assembly 2 stops rotating, at this time, the connecting shaft 51 rotates in the direction a, and the connecting shaft sleeve 52 and the second spring portion 53b slide relatively in a loose state, so that no moment is transmitted, and the door cover assembly 2 can be opened manually. In the closing process of the door cover assembly 2, along with the rotation of the connecting shaft 51 in the direction a, the first connecting shaft part 51a is in interference fit with the first spring part 53a, the connecting shaft 51a drives the second spring part 53b to rotate in the direction a, a space is reserved for the connecting shaft sleeve 52 to rotate in the direction a, the door cover assembly 2 is closed along with the connecting shaft sleeve 52 in the direction a, and the connecting shaft sleeve 52 can slowly rotate along with the connecting shaft 51 in the direction a due to the action of the clutch spring 53, so that the speed of the connecting shaft sleeve 52 does not exceed the rotating speed of the connecting shaft 51, the door cover closing process is very stable and not abrupt, and in addition, the acting force and self gravity of the return spring 3 are only applied to the door cover assembly 2, so that the acting force of the driving mechanism assembly 1 is not generated, and no harm is caused to human bodies or clothes.
The driving mechanism assembly, the detection switch, the door cover assembly opening switch (not shown) and the door cover assembly closing switch (not shown) are controlled by a program controller (not shown).
In addition, the washing process is interrupted, and at this time, the connecting shaft sleeve 52 is relatively free in the direction B relative to the connecting shaft 51, so that the door cover assembly 2 can be opened manually, and the odor generated by the fact that the clothes cannot be taken out can be avoided. The automatic opening and closing device for the door cover of the washing machine provided by the invention is described in detail, and specific preferred examples are applied to the description to explain the principle and implementation mode of the invention, and these examples are only used for helping to understand the principle and core idea of the invention, and it should be pointed out that, for those skilled in the art, the implementation modes of the examples can be further combined or replaced without departing from the design idea of the invention, and the invention can be further modified and modified within the scope of protection of the claims of the invention.
Claims (18)
1. The method is characterized in that a controlled motor is adopted to drive a connecting shaft, the connecting shaft comprises a first connecting shaft part and a second connecting shaft part, the second connecting shaft part of the connecting shaft is concentrically sleeved with a connecting shaft sleeve, the first connecting shaft part and the connecting shaft sleeve are wrapped with clutch springs, the clutch springs comprise a first spring part in interference fit with the first connecting shaft part and a second spring part in interference fit with the connecting shaft sleeve, the connecting shaft sleeve is connected with a shell through an internal spline and an external spline, and the shell is connected with the washing machine door; when the connecting shaft rotates along the opening direction of the door cover of the washing machine, the first connecting shaft part and the connecting shaft sleeve are respectively in interference fit with the first spring part and the second spring part, and the clutch spring is in a clasping state, so that the connecting shaft and the connecting shaft sleeve are connected into a whole and synchronously rotate; when the connecting shaft rotates along the closing direction of the door cover of the washing machine, the first connecting shaft part is in interference fit with the first spring part, the connecting shaft sleeve and the second spring part relatively slide in a loose state along with the rotation of the first connecting shaft part, no torque is transmitted, and the connecting shaft sleeve rotates along with the connecting shaft under the action of self gravity of the door cover of the washing machine or a boosting device; the method opens or closes a washing machine door by controlling a controlled motor to drive rotation of the connection shaft.
2. The method according to claim 1, characterized in that the method comprises:
1) Door cover opening working condition of washing machine: the controlled motor switch is connected, the controlled motor is controlled to drive the connecting shaft to rotate in the opening direction of the door cover, the first connecting shaft part and the connecting shaft sleeve are respectively in interference fit with the first spring part and the second spring part, the clutch spring is in a clasping state, the connecting shaft and the connecting shaft sleeve are connected into a whole to synchronously rotate, so that the door cover is opened, and the controlled motor is closed;
2) Closing working condition of door cover of washing machine: the controlled motor switch is connected, the controlled motor is controlled to drive the connecting shaft to rotate in the closing direction of the door cover, the first connecting shaft portion is in interference fit with the first spring portion, the connecting shaft sleeve and the second spring portion relatively slide in a loose state, torque is not transmitted, the door cover rotates along with the rotation of the connecting shaft along with the connecting shaft sleeve under the action of gravity of the door cover, and therefore the door cover is closed, and the controlled motor is closed.
3. A method according to claim 1 or 2, wherein during the opening or closing of the door of the washing machine, a manual quick opening of the door is used.
4. The automatic door cover opening and closing device for the washing machine is characterized by comprising a driving mechanism assembly (1), a door cover assembly (2) and a workbench (4), wherein the driving mechanism assembly (1) and the door cover assembly (2) are arranged on the workbench (4), the device further comprises a clutch mechanism assembly (5), and the clutch mechanism assembly (5) comprises a connecting shaft (51), a connecting shaft sleeve (52) and a clutch spring (53) which are connected with the driving mechanism assembly (1); the connecting shaft (51) comprises a first connecting shaft part (51 a) and a second connecting shaft part (51 b), the connecting shaft sleeve (52) is concentrically sleeved on the second connecting shaft part (51 b) of the connecting shaft (51), the clutch spring comprises a first spring part (53 a) in interference fit with the first connecting shaft part (51 a) and a second spring part (53 b) in interference fit with the connecting shaft sleeve (52), the connecting shaft sleeve (52) is connected with the shell through an inner spline (541) and an outer spline (521), and the shell (54) is connected with the door cover of the washing machine; when the connecting shaft rotates along the opening direction of the door cover of the washing machine, the first connecting shaft part (51 a) and the connecting shaft sleeve (52) are respectively in interference fit with the first spring part (53 a) and the second spring part (53 b), and the clutch spring (53) is in a clasping state, so that the connecting shaft (51) and the connecting shaft sleeve (52) are connected into a whole and synchronously rotate; when the connecting shaft (51) rotates along the closing direction of the door cover of the washing machine, the first connecting shaft part (51 a) is in interference fit with the first spring part (53 a), the connecting shaft sleeve (52) and the second spring part (53 b) relatively slide in a loose state, no moment is transmitted, and the connecting shaft sleeve (52) rotates along with the connecting shaft (51) under the action of the gravity of the door cover of the washing machine.
5. The method is characterized in that a controlled motor is adopted to drive a connecting shaft, the connecting shaft comprises a first connecting shaft part and a second connecting shaft part, the second connecting shaft part of the connecting shaft is concentrically sleeved with a connecting shaft sleeve, the first connecting shaft part and the connecting shaft sleeve are wrapped with clutch springs, the clutch springs comprise a first spring part in interference fit with the first connecting shaft part and a second spring part in clearance fit with the connecting shaft sleeve, the connecting shaft sleeve is connected with a shell through an internal spline and an external spline, a tail hook of the second spring part is connected with the shell through a first fixing hole arranged on the shell, and the shell is connected with the door cover of the washing machine; when the connecting shaft rotates along the opening direction of the door cover of the washing machine, the first connecting shaft part is in interference fit with the first spring part, and as the tail hook of the second spring part is fixed on the first fixing hole of the shell, the second spring part gradually shrinks to finally hug the connecting shaft sleeve along with the rotation of the first spring part, and after the second spring part and the connecting shaft sleeve are completely hugged, the connecting shaft and the connecting shaft sleeve are connected into a whole and synchronously rotate; when the connecting shaft rotates along the closing direction of the door cover of the washing machine, the first connecting shaft part is in interference fit with the first spring part, and as the tail hook of the second spring part is fixed on the first fixing hole of the shell, the gap between the second spring part and the connecting shaft sleeve gradually becomes larger along with the rotation of the second spring part and finally is in clearance fit with the connecting shaft sleeve, and under the action of the gravity of the door cover of the washing machine, the connecting shaft sleeve rotates along with the connecting shaft; the method opens or closes a washing machine door by controlling a controlled motor to drive rotation of the connection shaft.
6. The method according to claim 5, characterized in that the method comprises:
1) Door cover opening working condition of washing machine: the controlled motor switch is switched on, the controlled motor is controlled to drive the connecting shaft to rotate in the opening direction of the door cover, as the tail hook of the second spring part is fixed on the first fixing hole of the shell, the second spring part gradually shrinks to finally hug the connecting shaft sleeve along with the rotation of the first spring part, and after the second spring part and the connecting shaft sleeve are completely hugged, the connecting shaft and the connecting shaft sleeve are connected into an integral and synchronous rotation, so that the door cover is opened, and the controlled motor is closed;
2) Closing working condition of door cover of washing machine: the controlled motor switch is connected, the controlled motor is controlled to drive the connecting shaft to rotate in the closing direction of the door cover, as the tail hook of the second spring part is fixed on the first fixing hole of the shell, the gap between the second spring part and the connecting shaft sleeve gradually becomes larger along with the rotation of the second spring part and finally is in clearance fit with the connecting shaft sleeve, no torque is transmitted, and the door cover rotates along with the connecting shaft under the action of self gravity, so that the door cover is closed, and the controlled motor is closed.
7. The method according to claim 5 or 6, wherein the door is opened or closed manually and rapidly during the opening or closing of the door of the washing machine.
8. The automatic door cover opening and closing device for the washing machine is characterized by comprising a driving mechanism assembly (1), a door cover assembly (2) and a workbench (4), wherein the driving mechanism assembly (1) and the door cover assembly (2) are arranged on the workbench (4), the device further comprises a clutch mechanism assembly (5), and the clutch mechanism assembly (5) comprises a connecting shaft (51), a connecting shaft sleeve (52) and a clutch spring (53) which are connected with the driving mechanism assembly (1); the connecting shaft (51) comprises a first connecting shaft part (51 a) and a second connecting shaft part (51 b), the connecting shaft sleeve (52) is concentrically sleeved on the second connecting shaft part (51 b) of the connecting shaft (51), the clutch spring (53) comprises a first spring part (53 a) in interference fit with the first connecting shaft part (51 a) and a second spring part (53 b) in clearance fit with the connecting shaft sleeve (52), the connecting shaft sleeve (52) is connected with the shell (54) through an inner spline (541) and an outer spline (521), a tail hook of the second spring part (53 b) is connected with the shell (54) through a first fixing hole (58) arranged on the shell (54), and the shell (54) is connected with the door cover of the washing machine; when the connecting shaft (51) rotates along the opening direction of the door cover of the washing machine, the first connecting shaft part (51 a) is in interference fit with the first spring part (53 a), and the clutch spring (53) is in a clasping state, so that the connecting shaft (51) and the connecting shaft sleeve (52) are connected into a whole and synchronously rotate; when the connecting shaft (51) rotates along the closing direction of the door cover of the washing machine, the first connecting shaft part (51 a) and the first spring part (53 a) are in interference fit, the first connecting shaft part (51 a) drives the first spring part (53 a) to rotate along the closing direction of the door cover of the washing machine, the connecting shaft sleeve (52) and the second spring part (53 b) are in clearance fit, and under the action of the gravity of the door cover assembly (2), the connecting shaft sleeve (52) rotates along the connecting shaft (51) along the closing direction of the door cover of the washing machine.
9. The automatic door cover opening and closing device for washing machines according to claim 4 or 8, wherein the door cover assembly (2) is provided with a door cover pin hole (21), and the housing (54) is inserted into the door cover pin hole (21) and fastened.
10. The automatic door opening and closing device for washing machines according to claim 9, characterized in that the housing (54) is further provided with a stopper (57), and when the clutch mechanism assembly (5) is inserted into the door pin hole (21), the circumferential direction is fixed and the axial direction is positioned by the stopper (57).
11. The automatic door cover opening and closing device according to any one of claims 4, 8 and 10, wherein the driving mechanism assembly (1) further comprises an electromagnetic clutch assembly (13), and the electromagnetic clutch assembly (13) is used for connecting the driving motor (11) and the decelerator (12).
12. The automatic door cover opening and closing device of the washing machine according to claim 11, wherein the electromagnetic clutch assembly (13) comprises a first gear (131), a second gear (132), a third gear (133), a clutch sleeve (134) and an electromagnetic coil (135); the electromagnetic coil (135) is fixed on the shell of the speed reducer (12), and the clutch shaft sleeve (134) and the first gear (131) are concentrically sleeved on the electromagnetic coil (135) and can rotate relatively; the first gear (131) is meshed with an output gear of the driving motor (11), the second gear (132) is meshed with the third gear (133), and the third gear (133) is meshed with an input gear of the speed reducer (12); when the electromagnetic coil (135) is electrified, the first gear (131) and the second gear (132) are combined into a whole in a suction way, so that power can be transmitted; under the condition of power failure, the electromagnetic coil (135) is not attracted to the first gear (131) and the second gear (132) and can rotate freely, and the driving motor (11) drives the first gear (131) to idle and cannot transmit power.
13. The automatic door cover opening and closing device of a washing machine according to claim 12, wherein the first gear (131) includes a first gear wheel part (131 a) and a flat shaft part (131 b); the clutch shaft sleeve (134) comprises a flat hole part (134 a), a round hole part (134 b) and a clutch plane end (134 c); the second gear (132) includes a second gear wheel portion (132 a), a gear plane end (132 b), and a circular shaft portion (132 c).
14. The automatic door cover opening and closing device of the washing machine according to claim 13, wherein the flat shaft portion (131 b) of the first gear (131) is sleeved in the flat hole portion (134 a) of the clutch sleeve (134) and can drive the clutch sleeve (134) to rotate synchronously; the round shaft part (132 c) of the second gear (132) is sleeved in the round hole part (134 b) of the clutch shaft sleeve (134), and is coaxial with the clutch shaft sleeve (134) and the first gear (131) and can rotate relatively; when the electromagnetic coil (135) is energized, the clutch sleeve (134) and the gear plane end (132 b) of the second gear (132) are attracted and integrated, so that torque is transmitted by virtue of friction force.
15. The automatic door opening and closing device for washing machines according to claim 4 or 8, characterized in that when the center of gravity of the door assembly (2) is closer to the rear end of the washing machine in the vertical direction with respect to the connecting shaft (51), the automatic door opening and closing device for washing machines further comprises at least one boosting device, the boosting device is a return spring (3), one end of the return spring (3) is mounted on the door assembly (2), and the other end is fixed on the workbench (4) through a second fixing hole (43) provided on the workbench (4).
16. The automatic door opening and closing device of a washing machine according to claim 4 or 8, characterized in that the driving mechanism assembly (1) comprises a driving motor (11) and a decelerator (12), the driving motor (11) transmitting power to the clutch mechanism assembly (5) through the decelerator (12).
17. The automatic door opening and closing device for washing machines according to claim 4 or 8, characterized in that a door opening detection switch (41) and a door closing detection switch (42) for detecting the state of the door cover assembly (2) are arranged on the workbench (4), and the door opening detection switch (41) and the door closing detection switch (42) are independently micro switches, touch switches, photoelectric switches or magnetrons.
18. A washing machine characterized in that the washing machine uses the opening and closing method of a washing machine door as claimed in any one of claims 1 to 3 and 5 to 7 or is provided with the automatic opening and closing device of a washing machine door as claimed in any one of claims 4 and 8 to 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362313.6A CN106283548B (en) | 2015-06-26 | 2015-06-26 | Door cover opening and closing method of washing machine, automatic opening and closing device and washing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362313.6A CN106283548B (en) | 2015-06-26 | 2015-06-26 | Door cover opening and closing method of washing machine, automatic opening and closing device and washing machine |
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| Publication Number | Publication Date |
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| CN106283548A CN106283548A (en) | 2017-01-04 |
| CN106283548B true CN106283548B (en) | 2023-11-21 |
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| CN201510362313.6A Active CN106283548B (en) | 2015-06-26 | 2015-06-26 | Door cover opening and closing method of washing machine, automatic opening and closing device and washing machine |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436168B (en) * | 2015-08-04 | 2018-12-04 | 无锡小天鹅股份有限公司 | Washing machine |
| CN106436204B (en) * | 2015-08-04 | 2019-02-22 | 无锡小天鹅股份有限公司 | Washing machine |
| CN106436202B (en) * | 2015-08-04 | 2019-08-23 | 无锡小天鹅电器有限公司 | Washing machine |
| CN107130405B (en) * | 2017-06-22 | 2020-10-23 | 无锡小天鹅电器有限公司 | Pulsator washing machine |
| CN107523970B (en) * | 2017-09-18 | 2022-07-08 | 佛山市顺德海尔电器有限公司 | Washing machine cover body opening and closing structure and washing machine |
| CN109581536A (en) * | 2018-12-06 | 2019-04-05 | 成都城市空间共享房地产经纪有限公司 | Power-supply management system and method for managing power supply |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012493A (en) * | 1999-07-01 | 2001-01-16 | Tok Bearing Co Ltd | Opening/closing mechanism |
| CN1690296A (en) * | 2004-04-20 | 2005-11-02 | 日立家用电器公司 | Washing machine switch gate |
| JP2006000550A (en) * | 2004-06-21 | 2006-01-05 | Hitachi Home & Life Solutions Inc | Door opening and closing device of washing machine |
| KR20070105782A (en) * | 2006-04-27 | 2007-10-31 | 엘지전자 주식회사 | Top loading drum washing machine and control method |
| CN101984180A (en) * | 2010-10-29 | 2011-03-09 | 海尔集团公司 | Top cover device of washing machine and pulsator washing machine |
| CN203890725U (en) * | 2014-04-01 | 2014-10-22 | 德昌电机(深圳)有限公司 | Flip cover type washing device and driving component thereof |
| JP2014200458A (en) * | 2013-04-04 | 2014-10-27 | 日本電産サンキョー株式会社 | Lid body opening/closing device |
| CN203977152U (en) * | 2014-07-29 | 2014-12-03 | 安徽聚隆传动科技股份有限公司 | A kind of full-automatic primary and secondary washing machine |
| CN204849395U (en) * | 2015-06-26 | 2015-12-09 | 安徽聚隆传动科技股份有限公司 | Washing machine door closure automatic open and shut device and washing machine |
-
2015
- 2015-06-26 CN CN201510362313.6A patent/CN106283548B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012493A (en) * | 1999-07-01 | 2001-01-16 | Tok Bearing Co Ltd | Opening/closing mechanism |
| CN1690296A (en) * | 2004-04-20 | 2005-11-02 | 日立家用电器公司 | Washing machine switch gate |
| JP2006000550A (en) * | 2004-06-21 | 2006-01-05 | Hitachi Home & Life Solutions Inc | Door opening and closing device of washing machine |
| KR20070105782A (en) * | 2006-04-27 | 2007-10-31 | 엘지전자 주식회사 | Top loading drum washing machine and control method |
| CN101984180A (en) * | 2010-10-29 | 2011-03-09 | 海尔集团公司 | Top cover device of washing machine and pulsator washing machine |
| JP2014200458A (en) * | 2013-04-04 | 2014-10-27 | 日本電産サンキョー株式会社 | Lid body opening/closing device |
| CN203890725U (en) * | 2014-04-01 | 2014-10-22 | 德昌电机(深圳)有限公司 | Flip cover type washing device and driving component thereof |
| CN203977152U (en) * | 2014-07-29 | 2014-12-03 | 安徽聚隆传动科技股份有限公司 | A kind of full-automatic primary and secondary washing machine |
| CN204849395U (en) * | 2015-06-26 | 2015-12-09 | 安徽聚隆传动科技股份有限公司 | Washing machine door closure automatic open and shut device and washing machine |
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