CN113633242A

CN113633242A - Ejecting mechanism and dish washing machine

Info

Publication number: CN113633242A
Application number: CN202110900289.2A
Authority: CN
Inventors: 朱文彬; 张军杰; 赵建勋
Original assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-11-12
Anticipated expiration: 2041-08-06
Also published as: CN113633242B

Abstract

The invention discloses a push-out mechanism and a dish washing machine, wherein the push-out mechanism comprises: the motor comprises a limiting part, and the limiting part is provided with a first position and a second position; the first driving piece is used for being in transmission connection or disconnection connection with the motor and is provided with a stopping part which is used for abutting against the limiting part so as to stop the rotation of the first driving piece; a push rod having an extended state and a retracted state; in the first state, the motor is electrified, and the first driving piece is in transmission connection with the push rod so as to switch the push rod from the retraction state to the extension state; in the second state, the first driving piece is disconnected with the push rod so that the push rod is switched from the extending state to the retracting state; in the third state, the limiting part is abutted against the stopping part; in the fourth state, the motor is powered off, and the limiting part is separated from the stopping part, so that the motor is in transmission connection with the first driving part again. The pushing mechanism is high in use safety and good in use experience of users.

Description

Ejecting mechanism and dish washing machine

Technical Field

The invention relates to the technical field of household appliances, in particular to a push-out mechanism and a dish washing machine.

Background

In the correlation technique, use the wax motor as ejecting mechanism, the wax motor needs circular telegram to make inside liquid be heated the inflation when using, promotes the push rod motion and backs down the door body of dish washer, and the wax motor is serious that generates heat, easily leads to the safety risk, and the wax motor is more accurate micromachine, and manufacturing efficiency is lower, can restrict the productivity promotion of dish washer. In addition, the push rod of the wax motor needs to wait for the natural cooling to retract after the power failure, the time is long, the ejection state is always kept in the cooling time, a user cannot close the door body of the dish washing machine, and the user experience is reduced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a push-out mechanism which is highly safe to use and has a good user experience.

Another object of the present invention is to provide a dishwasher having the above-mentioned push-out mechanism.

According to an embodiment of the present invention, an ejection mechanism includes: the motor comprises a limiting part, the limiting part is provided with a first position and a second position, the limiting part is located at the second position when the motor is in a power-on state, and the limiting part is located at the first position when the motor is in a power-off state; the first driving piece is used for being in transmission connection with or disconnection from the motor, the first driving piece is provided with a stopping part, and the stopping part is used for abutting against the limiting part so as to stop the first driving piece from rotating; the push rod is used for being in transmission connection or disconnection connection with the first driving piece and has an extending state and a retracting state; the push-out mechanism has a first state to a fourth state during movement: in a first state, the motor is electrified, the motor is in transmission connection with the first driving piece, and the first driving piece is in transmission connection with the push rod so that the push rod is switched from the retraction state to the extension state; in a second state, the motor is kept electrified, the motor is in transmission connection with the first driving piece, and the first driving piece is disconnected with the push rod so that the push rod can be switched from the extending state to the retracting state; in a third state, the motor is kept electrified, the motor is disconnected with the first driving piece, and the limiting part abuts against the stopping part; in a fourth state, the motor is powered off, and the limiting part is separated from the stopping part, so that the motor is in transmission connection with the first driving part again, and the first driving part is in transmission connection with the push rod again or is in transmission connection with the push rod when the motor is powered on again.

According to the push-out mechanism provided by the embodiment of the invention, the push rod can be pushed out through the transmission connection, and the push rod can retract when the first driving part is disconnected from the push rod, so that the defect that a wax motor used as the push-out mechanism in the related art needs to wait for natural cooling to retract the push rod is avoided, the transmission connection generates less heat, the potential safety hazard caused by heat generation is avoided, the use safety is ensured, and a user has better use experience. The first driving piece can stop rotating under the blocking of the limiting part, the push rod can be ejected out once when the motor is powered on, the power failure of the push rod detected by control systems such as a sensor and the like to control the motor is eliminated, the circuit of the push-out mechanism is simple, the complexity of an internal structure is reduced, and therefore the production cost is reduced.

In addition, the pushing-out mechanism according to the above-described embodiment of the present invention may further have the following additional technical features:

according to the ejector mechanism of some embodiments of the present invention, in the third state, the first driver is disconnected from the push rod.

According to some embodiments of the invention, the motor comprises a stator and a rotor, the rotor is rotatably disposed in the stator, the rotor is configured to be in transmission connection with or disconnected from the first driving member, the stator comprises a first stator, the first stator is provided with the limiting portion, the first stator is located at the second position when the motor is in a power-on state, and the first stator is located at the first position when the motor is in a power-off state.

According to some embodiments of the invention, the stator further comprises a second stator and a coil, the first stator and the second stator being disposed opposite each other, the coil being disposed between the first stator and the second stator; when the coil is electrified, the first stator and the coil are attracted so that the limiting part is located at the second position; the first stator is spaced apart from the coil when the coil is de-energized to place the restraint portion in the first position.

According to some embodiments of the invention, the stopper portion is a projection structure provided on an outer peripheral wall of the first stator, and/or the stopper portion extends toward the second stator.

According to some embodiments of the invention, the stator further comprises a first elastic member provided between the first stator and the second stator to drive the first stator to move in a direction away from the second stator.

According to some embodiments of the invention, the second stator is provided with a limit shaft, the first elastic member is sleeved on the limit shaft, and the first stator is slidable along the limit shaft.

According to some embodiments of the present invention, the plurality of limiting shafts are spaced apart from each other in the circumferential direction of the second stator, the plurality of first elastic members are provided in one-to-one correspondence with the plurality of limiting shafts, and the plurality of first elastic members are provided in one-to-one correspondence with the plurality of limiting shafts.

According to some embodiments of the invention, the first driving member comprises a first rotating part and a second rotating part which are arranged in a linkage manner, the first rotating part is used for being in transmission connection with or disconnection from the motor, the stopping part is arranged on the first rotating part or the second rotating part, and the second rotating part is used for being in transmission connection with or disconnection from the push rod.

According to some embodiments of the invention, the first rotating part and the second rotating part are relatively fixed and coaxially arranged.

According to some embodiments of the invention, the first rotating portion is provided with a first sprocket section and a first smooth section at an outer periphery thereof, the first rotating portion is in meshing transmission with the motor through the first sprocket section, and the first rotating portion is disconnected from the motor through the first smooth section.

According to some embodiments of the invention, the second rotating portion is provided with a second sprocket section and a second smooth section at an outer periphery thereof, the second rotating portion is in meshing transmission with the push rod through the second sprocket section, and the second rotating portion is disconnected from the push rod through the second smooth section.

According to some embodiments of the invention, the push rod is provided with a rack for meshing transmission with the first drive member.

According to some embodiments of the invention, the ejector mechanism further comprises a second drive member, one end of the second drive member being connected to the first drive member, the other end of the second drive member being fixed to generate a force to the first drive member; in a third state, the motor is kept electrified, the motor is disconnected with the first driving piece, and the second driving piece generates force on the first driving piece so that the first driving piece continuously rotates to be abutted against the stopping part; in a fourth state, the motor is powered off, the limiting part is separated from the stopping part, and the second driving part generates force on the first driving part to enable the first driving part to continue rotating, so that the motor is in transmission connection with the first driving part again, and the first driving part is in transmission connection with the push rod again or is in transmission connection with the push rod when the motor is powered on again.

According to some embodiments of the invention, the second driving member comprises a second elastic member, one end of the second elastic member is connected with the first driving member, and the other end of the second elastic member is fixed.

According to some embodiments of the invention, the ejector mechanism further comprises a transmission member, the motor is in transmission connection with the transmission member, and the transmission member is used for being in transmission connection or disconnection with the first driving member; in a first state, the motor is electrified, the motor is in transmission connection with the transmission piece, the transmission piece is in transmission connection with the first driving piece, and the first driving piece is in transmission connection with the push rod so as to enable the push rod to be switched from the retraction state to the extension state; in a second state, the motor is kept electrified, the motor is in transmission connection with the transmission piece, the transmission piece is in transmission connection with the first driving piece, and the first driving piece is disconnected from the push rod so that the push rod can be switched from the extending state to the retracting state; in a third state, the motor is powered on, the motor is in transmission connection with the transmission piece, the transmission piece is disconnected from the first driving piece, and the limiting part abuts against the stopping part; in a fourth state, the motor is powered off, the limiting part is separated from the stopping part, the transmission part is in transmission connection with the first driving part again, and the first driving part is in transmission connection with the push rod again or in transmission connection with the push rod when the motor is powered on again.

According to some embodiments of the invention, the transmission is a transmission gear, or the transmission comprises at least one transmission gear.

According to some embodiments of the invention, the push-out mechanism further comprises a reset member connected to the push rod to drive the push rod to switch from the extended state to the retracted state.

According to some embodiments of the present invention, the restoring member includes a third elastic member, one end of which is fixed, and the other end of which is connected to the push rod to drive the push rod to switch from the extended state to the retracted state.

According to some embodiments of the invention, the ejector mechanism further comprises a housing, the motor, the first drive and the push rod being disposed within the housing.

According to an embodiment of the present invention, an ejection mechanism includes: a housing; the motor is arranged in the shell and comprises a rotor and a limiting part, the limiting part is provided with a first position and a second position, the limiting part is located at the second position when the motor is in a power-on state, and the limiting part is located at the first position when the motor is in a power-off state; the transmission piece is arranged in the shell and is in transmission connection with the rotor; the first driving piece is arranged in the shell and comprises a first rotating part and a second rotating part which are arranged in a linkage manner, the first rotating part is used for being in transmission connection with or disconnection from the transmission piece and has a rotating trend, the first rotating part or the second rotating part is provided with a stopping part, and the stopping part is used for abutting against the limiting part so as to stop the first rotating part and the second rotating part from rotating; the push rod is at least partially arranged in the shell and is used for being in transmission connection with or disconnection from the second rotating part, and the push rod has an extending state of at least partially extending out of the shell and a retracting state of at least partially retracting into the shell; the push-out mechanism has a first state to a fourth state during movement: in a first state, the motor is electrified, the motor is in transmission connection with the transmission piece, the transmission piece is in transmission connection with the first driving piece, and the first driving piece is in transmission connection with the push rod so as to enable the push rod to be switched from the retraction state to the extension state; in a second state, the motor is kept electrified, the motor is in transmission connection with the transmission piece, the transmission piece is in transmission connection with the first driving piece, and the first driving piece is disconnected from the push rod so that the push rod can be switched from the extending state to the retracting state; in a third state, the motor is powered on, the motor is in transmission connection with the transmission piece, the transmission piece is disconnected from the first driving piece, and the limiting part abuts against the stopping part or the first driving piece continues to rotate until the limiting part abuts against the limiting part; in a fourth state, the motor is powered off, the limiting part is separated from the stopping part, and the first driving part continues to rotate, so that the driving part is in transmission connection with the first driving part again, and the first driving part is in transmission connection with the push rod again or is in transmission connection with the push rod when the motor is powered on again.

A dishwasher according to an embodiment of the present invention includes: a body having a washing chamber therein; the door body is arranged on the body to open or close the washing chamber; the push-out mechanism is arranged on the body or the door body, and the push rod is suitable for being stopped against the door body or the body to push the door body to open the washing chamber.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an ejection mechanism according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the push-out mechanism according to the embodiment of the present invention (in which the upper case is not shown);

fig. 3 is a plan view of the push-out mechanism according to the embodiment of the invention (in which the push rod is in the extreme position of the extended state);

fig. 4 is a front view of the inside of the ejector mechanism (in which the first stator is located at the second position) according to the embodiment of the invention;

FIG. 5 is a front view of the interior of the ejector mechanism (with the first stator in the first position) according to an embodiment of the invention;

fig. 6 is a plan view of the ejection mechanism according to the embodiment of the invention (in which the ejection mechanism is in the first state);

fig. 7 is a bottom view of the ejection mechanism according to the embodiment of the invention (in which the ejection mechanism is in a third state);

fig. 8 is a bottom view of the ejection mechanism according to the embodiment of the present invention (in which the ejection mechanism is in the third state, and the hidden line remains).

Reference numerals:

a push-out mechanism 100;

a housing 10; a connecting portion 11; a limit convex part 12; an upper case 101; a lower case 102;

a motor 20; a stator 21; a rotor 22; the first elastic member 211; a magnetic rotor gear 221;

a transmission member 30; a first transmission gear 31; a second transmission gear 32; a third transmission gear 33; a first drive gearwheel 311; a first drive pinion 312; a second drive gearwheel 321; a second drive pinion 322; a third drive gearwheel 331; a third drive pinion 332;

a first driving member 40; a first rotating section 41; the second rotating portion 42; a stopper portion 411; a first gear segment 412; a first smooth section 413; a mounting portion 414; a second sprocket segment 421; a second smooth section 422;

a push rod 50; a rack 51; a push-out section 52; an avoidance structure 53; an installation space 521; an opening 522; a mounting port 523; a convex rib 531;

a first stator 61; a second stator 62; a coil 63; a stopper portion 611; a motion hole 612; an extension section 613; a restraint section 614; a retaining wall 615; a stopper shaft 621; a motion shaft 622;

a second driver 70; the second elastic member 71; a mounting ring 711;

a restoring member 80; the third elastic member 81.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and "a plurality" means two or more, and the first feature may be "on" or "under" the second feature, and may include the first and second features being in direct contact, or may include the first and second features being not in direct contact but being in contact with another feature therebetween, and the first feature being "on", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is higher in level than the second feature.

The following describes the push-out mechanism 100 according to an embodiment of the present invention with reference to the drawings, and the push-out mechanism 100 may be applied to a dishwasher, a washing machine, and the like, and the following takes the dishwasher as an example.

Referring to fig. 1 to 8, a dishwasher according to an embodiment of the present invention includes a body having a washing chamber therein, a door provided on the body, and a push-out mechanism 100 according to an embodiment of the present invention, the door being capable of opening or closing the washing chamber. When the door body opens the washing chamber, a user can conveniently take and place tableware in the washing chamber; when the door body is closed, the dish washing machine can work to wash the tableware in the washing chamber. The push-out mechanism 100 may be provided in the body or the door body, and the push-out mechanism 100 may include: a motor 20, a first driving member 40 and a push rod 50.

Specifically, the motor 20 may include a position-limiting portion 611, and the position-limiting portion 611 has a first position and a second position. When the motor 20 is in the energized state, the stopper portion 611 may be located at the second position; the stopper portion 611 may be located at the first position when the motor 20 is in the power-off state. The first driving member 40 can be in transmission connection with the motor 20, so that the first driving member 40 can rotate under the driving action of the motor 20; alternatively, the first drive member 40 may be disconnected from the motor 20 such that the first drive member 40 may be free of the driving action of the motor 20. The first driving member 40 may be provided with a stopping portion 411, and the stopping portion 411 may abut against the limiting portion 611, so that the stopping portion 411 abuts against the limiting portion 611, and the first driving member 40 may be controlled to stop rotating.

It can be understood that, when the motor 20 is in the power-on state, the limiting portion 611 can be located at the second position, the stopping portion 411 on the first driving member 40 will follow the rotation of the first driving member 40 during the rotation of the first driving member 40, and when the first driving member 40 rotates to the point that the limiting portion 611 is matched with the stopping portion 411, the first driving member 40 can stop rotating by the stopping of the limiting portion 611, but the first driving member 40 has a tendency to continue to rotate; when the position-limiting portion 611 is not engaged with the stopping portion 411, the first driving member 40 can continue to rotate until the position-limiting portion 611 engages with the stopping portion 411. When the motor 20 is in the power-off state, the limiting portion 611 can be located at the first position, and during the rotation of the first driving element 40, the limiting portion 611 does not cooperate with the stopping portion 411, so that the first driving element 40 can be controlled without the limiting portion 611.

The push rod 50 can be in transmission connection with the first driving element 40, so that the push rod 50 can move under the driving action of the first driving element 40; alternatively, the push rod 50 may be disconnected from the first drive member 40 such that the push rod 50 may be free of the driving action of the first drive member 40. Thus, the push rod 50 can have an extended state and a retracted state by drivingly connecting and disconnecting the push rod 50 to the first drive 40.

When the push rod 50 is in the extended state, the push rod 50 can be stopped against the door body or the body, so that the push rod 50 can be stopped against by pushing the door body or the body, the door body can be opened, and the washing chamber can be opened. The washing chamber is opened in the drying stage of the washing program, so that the damp and hot steam in the washing chamber can be discharged to the outside, the air flow of the washing chamber can be increased, and the steam evaporation process is accelerated, so that the purposes of reducing the power consumption and improving the drying effect of the dish washing machine are achieved, the problem that a door body needs to be pulled by certain external force when being opened manually is avoided, the use is more convenient for a user, and the user experience is improved; when the push rod 50 is in the retracted state, the push rod 50 may not affect the closing of the door body, so as to facilitate the closing of the washing chamber.

As is clear from the above, the transmission connection, i.e., the power transmission, transmits the motion of the transmission body to the other, and may be either a direct transmission or an indirect transmission, so that the connection is disconnected, i.e., the power transmission is disconnected. The term "drive" in the first driving member 40 means that the first driving member 40 can drive the push rod 50 to act through the transmission connection relative to the push rod 50 (hereinafter, the term "drive" in the second driving member 70 is also used).

During the movement of the push-out mechanism 100, the push-out mechanism 100 may have a first state, a second state, a third state, and a fourth state:

when the pushing mechanism 100 is in the first state, as shown in fig. 6, after the motor 20 is powered on, the motor 20 may be in transmission connection with the first driving element 40, and the first driving element 40 may be in transmission connection with the push rod 50. Therefore, the motor 20 can drive the first driving part 40 to rotate, the first driving part 40 rotates to drive the push rod 50 to move, so that the push rod 50 is switched to the extending state from the retracting state, the push rod 50 is stopped against the door body or the body, and the push rod 50 can push the door body to open the washing chamber. Compared with the related art that a wax motor is used as the pushing-out mechanism, the pushing-out mechanism has no heating part, avoids potential safety hazards caused by heating of the parts, and ensures the use safety of the pushing-out mechanism 100.

When the ejector mechanism 100 is in the second state, as shown in fig. 2, the motor 20 is continuously powered, the motor 20 may be in driving connection with the first driving element 40, and the first driving element 40 may be disconnected from the push rod 50. Therefore, the motor 20 can drive the first driving part 40 to rotate, and the push rod 50 can not be driven by the first driving part 40, so that the push rod 50 can be switched from the extending state to the retracting state, and when the push rod 50 is in the retracting state, a user can close the door body conveniently. Can break away from with push rod 50 through first driving piece 40, can realize the retraction of push rod 50, avoid among the correlation technique wax motor as release mechanism need wait for the shortcoming of natural cooling, break away from the connection through making push rod 50, can make the user close the door body when the door body is closed to needs, do not need to wait for a long time, make the user have better use and experience.

When the push-out mechanism 100 is in the third state, as shown in fig. 8, the motor 20 is continuously powered on, the motor 20 can be disconnected from the first driving element 40, and the limiting portion 611 can abut against the stopping portion 411, so that the first driving element 40 can not be driven by the first driving element 40, and meanwhile, the first driving element 40 can stop rotating under the blocking of the limiting portion 611, thereby avoiding that the first driving element 40 continuously rotates to enable the first driving element 40 to be in transmission connection with the push rod 50 again, ensuring that the push rod 50 can only be pushed out once when the motor 20 is powered on, and not affecting the subsequent operation of the dishwasher. Meanwhile, the motor 20 is disconnected from the first driving member 40, so that after the first driving member 40 stops rotating under the blocking of the limiting part 611, the first driving member 40 cannot be damaged due to the dual functions of the motor 20 and the limiting part 611, the normal operation of the motor 20 cannot be influenced, and the use safety of the motor 20 is ensured.

When the pushing mechanism 100 is in the fourth state, the motor 20 is powered off, the limiting portion 611 is located at the first position, so that the limiting portion 611 can be separated from the stopping portion 411, the first driving member 40 can continue to rotate, so that the motor 20 can be in transmission connection with the first driving member 40 again, and the first driving member 40 can be in transmission connection with the push rod 50 again, or when the motor 20 is powered on again, the first driving member 40 can be in transmission connection with the push rod 50, so that the pushing mechanism 100 can be switched from the fourth state to the first state, a next movement cycle can be started, and the movement process is as described above, and will not be described in detail here.

The inventor of the present application has found that in the related art, the push rod needs to be detected by a control system such as a sensor, and the on/off of the motor is controlled by the detected push rod position.

In the invention, the motor 20 can be always kept in the power-on state, when the push-out mechanism 100 is in the third state, the motor 20 can be disconnected from the first driving member 40, the limiting portion 611 can abut against the stopping portion 411, the first driving member 40 can be not controlled by the motor 20 when the motor 20 is in the power-on state, and under the matching action of the limiting portion 611 and the stopping portion 411, the first driving member 40 can stop rotating, so that the first driving member 40 can be further prevented from being in transmission connection with the push rod 50 to push out the push rod 50, the effect that the motor 20 is powered on once and the push rod 50 can be pushed out once is realized, the effect that a control system such as a sensor detects the position of the push rod 50 to control the power-off of the motor 20 is omitted, the circuit of the push-out mechanism 100 is simple, the complexity of the internal structure is reduced, and the production cost is reduced.

In some embodiments, the ejection mechanism 100 can control the power of the motor 20 by timing, and the time can be set based on the existing electric control circuit. When the motor 20 is powered on, the push-out mechanism 100 can complete the first state, the second state, the third state and the fourth state within the control time, so as to ensure that the push rod 50 can be switched from the retracted state to the extended state, push the door body to open the washing chamber, and switch from the extended state to the retracted state again, without affecting the closing of the door body, and meanwhile, preparation is made for the next movement cycle to complete the above actions, and after the time is up, the motor 20 is powered off, so that the control is simple.

According to the pushing-out mechanism 100 provided by the embodiment of the invention, the pushing-out of the push rod 50 can be realized through transmission connection, and the retraction of the push rod 50 is realized when the first driving part 40 is disconnected from the push rod 50, so that the defect that a wax motor used as a pushing-out mechanism in the related art needs to wait for natural cooling to retract the push rod is avoided, the heat generated by the transmission connection is less, the potential safety hazard caused by heat generation is avoided, the use safety is ensured, and a user has better use experience. The first driving member 40 can stop rotating under the blocking of the limiting part 611, so that the push rod 50 can be ejected only once when the motor 20 is powered on, and the situation that the position of the push rod 50 is detected by a control system such as a sensor to control the power failure of the motor 20 is eliminated, so that the circuit of the ejecting mechanism 100 is simple, the complexity of the internal structure is reduced, and the production cost is reduced.

According to some embodiments of the present invention, when the push-out mechanism 100 is in the third state, the first driving element 40 and the push rod 50 can be disconnected, so that after the first driving element 40 is disconnected from the motor 20, the push rod 50 can be prevented from affecting the rotation of the first driving element 40, and the smooth rotation of the first driving element 40 can be ensured.

In some embodiments of the present invention, as shown in fig. 2-8, the motor 20 may include a stator 21 and a rotor 22, the rotor 22 may be rotatably disposed in the stator 21, and the rotor 22 may be in transmission connection with the first driving member 40, such that the first driving member 40 may rotate under the driving action of the rotor 22; alternatively, the rotor 22 may be disconnected from the first drive member 40 such that the first drive member 40 may be free of the driving action of the rotor 22. The stator 21 may include a first stator 61, and the first stator 61 may be provided with a stopper portion 611. When the motor 20 is in the power-on state, the first stator 61 may be located at the second position, and when the motor 20 is in the power-off state, the first stator 61 may be located at the first position, that is, the first stator 61 is a movable stator, and the limiting portion 611 may be controlled by controlling the first stator 61, so that the motor 20 is simple in structure.

When the motor 20 is in the energized state, as shown in fig. 4, the first stator 61 may be located at the second position, and at this time, the limiting portion 611 and the stopping portion 411 may be engaged. When the first rotating part 41 rotates, the stopping part 411 on the first rotating part 41 moves along with the rotation of the first rotating part 41, and when the first rotating part 41 rotates to the matching of the limiting part 611 and the stopping part 411, the first rotating part 41 stops rotating through the stopping of the limiting part 611; when the limiting portion 611 is not engaged with the stopping portion 411, the first rotating portion 41 continues to rotate.

When the motor 20 is in the de-energized state, the first stator 61 may be in the first position, as shown in fig. 5. When the first stator 61 is located at the first position, the limiting portion 611 and the stopping portion 411 do not cooperate with each other during the rotation of the first driving element 40, so that the first driving element 40 is not controlled by the limiting portion 611.

In some embodiments, as shown in fig. 2, 3 and 6, the rotor 22 may include a magnetic rotor gear 221, the magnetic rotor gear 221 being in driving connection with the first drive member 40. After the motor 20 is powered on, the rotor 22 rotates to drive the magnetic rotor gear 221 to rotate, the magnetic rotor gear 221 is in transmission connection with the first driving member 40 to drive the first driving member 40 to rotate, the first driving member 40 can be in transmission connection with the push rod 50 to drive the push rod 50 to move, and the push rod 50 is switched from the retracted state to the extended state.

According to some embodiments of the present invention, as shown in fig. 2, 4 and 5, the stator 21 may further include a second stator 62 and a coil 63, the first stator 61 is disposed opposite to the second stator 62, and the coil 63 may be disposed between the first stator 61 and the second stator 62. When alternating current is supplied to the coil 63, the coil 63 may excite an alternating magnetic field between the first stator 61 and the second stator 62, the first stator 61 is subjected to a magnetic force generated by the coil 63, the first stator 61 may be attracted to the coil 63, and at this time, the first stator 61 is located at a second position (for example, the position shown in fig. 4), so that the position-limiting portion 611 is located at the second position; when the coil 63 is de-energized, the magnetic force generated by the coil 63 disappears, and the first stator 61 may be spaced apart from the coil 63, in which case the first stator 61 is located at the first position (e.g., the position shown in fig. 5), so that the stopper portion 611 is located at the first position. The first stator 61 can move between the first position and the second position by controlling the power on and power off of the coil 63, the structure is simple, and the control effect of the limiting part 611 is good.

In addition, when alternating current is supplied to the coil 63, the magnetic field generated by the coil 63 can make the rotor 22 start to rotate, so that the rotor 22 can drive the first driving member 40 to rotate; when the coil 63 is de-energized, the magnetic force generated by the coil 63 disappears and the rotor 22 stops rotating.

In some embodiments, as shown in fig. 2, the first stator 61, the second stator 62, the coil 63, and the rotor 22 may constitute an ac synchronous motor. The rotating speed of the synchronous motor can be determined by the power supply frequency, and when the power supply frequency is constant, the rotating speed of the motor is also constant and does not change along with the change of the load, so that the rotating speed is convenient to control, the precise speed regulation can be realized, the running stability is good, and the accurate control of the push-out mechanism 100 is ensured. For example, the ac synchronous machine may be an ac claw-pole synchronous machine.

In some embodiments, as shown in fig. 4 and 5, the first driving member 40 may be located on a side of the first stator 61 facing the second stator 62, i.e. the first driving member 40 may be located on a lower side of the first stator 61. Therefore, when the motor 20 is powered on, the first stator 61 is under the magnetic action of the coil 63, the first stator 61 moves downward, so as to drive the limiting part 611 to move downward, so that the limiting part 611 can be matched with the stopping part 411 of the first driving member 40, and the matching control of the limiting part 611 and the stopping part 411 can be realized by moving the first stator 61 between the first position and the second position, so that the control is simpler. For example, the first driving element 40 may be located at the lower side of the first stator 61, and the first driving element 40 may be located at the upper side of the second stator 62, so that the limiting portion 611 abuts against the stopping portion 411, and the space occupied by the height can be reduced.

In the embodiment of the present invention, the specific structure of the position-limiting portion 611 may be set according to actual conditions.

In some embodiments of the present invention, as shown in fig. 2, 4 and 5, the position-limiting portion 611 may be a protruding structure disposed on the outer circumferential wall of the first stator 61, and the position-limiting portion 611 may realize the movement of the position-limiting portion 611 according to the first stator 61 being located at the first position and the second position.

For example, when the first stator 61 is located at the second position, the stopping portion 411 can move to the position where the stopping portion 411 is matched with the limiting portion 611 in the moving process through the rotation of the first driving element 40, the limiting portion 611 stops the stopping portion 411, and the first driving element 40 can be controlled to stop rotating and be fixed in position through the blocking of the limiting portion 611; when the first stator 61 is located at the first position, the limiting portion 611 does not cooperate with the stopping portion 411, so that the first driving member 40 can be controlled without the limiting portion 611.

In some embodiments, as shown in fig. 2, 4 and 5, the position-limiting portion 611 may extend toward the second stator 62, so that the position-limiting portion 611 cooperates with the stopping portion 411 of the first driving member 40, which can effectively reduce the space occupied by the height.

For example, in some embodiments, as shown in fig. 2 to 5, the position-limiting portion 611 may include an extension 613 and a position-limiting segment 614, one end of the extension 613 is connected to the outer circumferential wall of the first stator 61, the extension 613 extends outwards along the outer circumferential wall, the other end of the extension 613 is connected to one end of the position-limiting segment 614, the other end of the position-limiting segment 614 extends towards the second stator 62, and the position-limiting segment 614 may stop the stopping portion 411.

In some embodiments, as shown in fig. 2-6, the stopping portion 411 may be a protruding structure provided on an axial end surface of the first driving member 40, and the stopping portion 411 may realize the movement of the stopping portion 411 according to the rotation of the first driving member 40. For example, when the limiting portion 611 is located at the first position, the stopping portion 411 can move to the position where the stopping portion 411 matches with the limiting portion 611 in the moving process by the rotation of the first driving element 40, and the first driving element 40 can be controlled to stop rotating and be fixed in position by the blocking of the limiting portion 611.

For example, in some embodiments, as shown in fig. 2 and 3, the stopping portion 411 may be a protruding structure protruding from an axial end surface of the first driving member 40, and the cross section of the stopping portion 411 may be triangular as shown in fig. 2, or may be circular, square, or the like.

According to some embodiments of the present invention, as shown in fig. 2, 4 and 5, the stator 21 further includes a first elastic element 211, the first elastic element 211 may be disposed between the first stator 61 and the second stator 62, and the first elastic element 211 may drive the first stator 61 to move toward a direction away from the second stator 62 (e.g., upward in fig. 4), so that the position-limiting portion 611 on the first stator 61 may move upward, the position-limiting portion 611 is separated from the stopping portion 411, and the first rotating portion 41 is not blocked. For example, the first elastic member 211 may be a compression spring or the like.

When the coil 63 is energized, the first stator 61 is attracted under the magnetic force of the coil 63 to compress the first elastic member 211, the first stator 61 is located at the second position, and the first elastic member 211 has a tendency of moving in the opposite direction to the first stator 61; when the coil 63 is powered off, the magnetic force of the coil 63 disappears, and the first stator 61 can apply an acting force to the first stator 61 under the elastic deformation action of the first elastic member 211, so that the first stator 61 moves to the first position. The first stator 61 is driven to move to the first position through the first elastic piece 211, the structure is simple, the use of a control assembly is avoided, and the production cost is reduced. For example, the first elastic member 211 may be a spring or the like.

For convenience of description, the orientations of the "up-down direction" and the "left-right direction" in the present invention are based on the orientation relationship shown in the drawings, and are not limited to the orientation in the practical application.

In some embodiments, as shown in fig. 2 and fig. 3, the second stator 62 is provided with a limiting shaft 621, the first elastic member 211 can be sleeved on the limiting shaft 621, and the first stator 61 can slide along the limiting shaft 621, and the limiting shaft 621 can position the first elastic member 211, so as to ensure that the first elastic member 211 is not easy to shift in the compression or elastic deformation process. Simultaneously, first elastic component 211 is at compression or elastic deformation in-process, and spacing axle 621 can play better guide effect to first elastic component 211, ensures that first elastic component 211 is difficult for causing first elastic component 211 to damage towards the axial flexure at compression and elastic deformation's in-process, and guarantees that the effort of applying to first stator 61 is stable, ensures that first stator 61 moves to first position.

According to some embodiments of the present invention, as shown in fig. 2 and fig. 3, the plurality of limiting shafts 621 may be provided, the plurality of limiting shafts 621 may be spaced apart along the circumferential direction of the second stator 62, the plurality of first elastic members 211 may be provided, the plurality of first elastic members 211 may be arranged in one-to-one correspondence with the plurality of limiting shafts 621, and the plurality of limiting shafts 621 are matched with the plurality of first elastic members 211, so that the second stator 62 is not easily shifted during movement, the stress is more balanced, and the reliability of the movement is ensured.

In the embodiment of the present invention, the number of the limiting shafts 621 may be flexibly set according to actual situations, for example, three limiting shafts 621 may be shown in fig. 7, and a triangular structure may be formed by the three limiting shafts 621, so that the second stator 62 can be positioned more stably and is not easy to deviate. Of course, the limiting shaft 621 may be two, four, five, six or more, which is within the protection scope of the present invention.

In some embodiments in which the push-out structure 100 includes the housing 10, as shown in fig. 2 and 3, the limiting shaft 621 may be located on the housing 10, and the limiting shaft 621 may be disposed through the second stator 62, the first elastic element 211 and the second stator 62 to further position the second stator 62, so that the second stator 62 is not easily moved by other structures to affect the normal use of the push-out mechanism 100, and the second stator 62 is ensured to move more stably between the first position and the second position.

In some embodiments of the present invention, as shown in fig. 3 to 8, the second stator 62 may be provided with a plurality of moving shafts 622, the plurality of moving shafts 622 may be spaced apart along a circumferential direction of the second stator 62, the first stator 61 may be provided with a plurality of moving holes 612, the plurality of moving holes 612 may be matched with the moving shafts 622, the moving holes 612 are limited by the moving shafts 622, so as to limit the first stator 61, and ensure that the first stator 61 is not prone to rotate when moving between the first position and the second position, and the moving shafts 622 may guide the moving holes 612, so as to avoid problems of shifting and deflecting of the first stator 61 during moving, and further ensure that the first stator 61 moves stably and accurately.

In the embodiment of the present invention, the number of the moving shafts 622 can be flexibly set according to actual situations, for example, the moving shafts 622 can be three as shown in fig. 2, the three moving shafts 622 can be formed into a triangular structure, which can better limit the position of the second stator 62, and the triangular structure can make the stress on the second stator 62 more balanced when the second stator 62 moves between the first position and the second position. Of course, it is within the scope of the present invention that the motion axis 622 may be two, four, five, six, or more.

In some embodiments, as shown in fig. 2 to 8, the hole edge of the moving hole 612 may be provided with a limiting wall 615, the limiting wall 615 extends along the hole edge of the moving hole 612 in a direction away from the first stator 61 (e.g., upward as shown in fig. 4), and the limiting wall 615 is matched with the moving shaft 622, so that the moving hole 612 and the moving shaft 622 are better matched in strength, the contact area is large, the movement of the first stator 61 can be better guided, the movement of the first stator 61 between the first position and the second position is smoother, and the structural strength at the moving hole 612 can be enhanced.

For example, as shown in fig. 2-8, when the moving hole 612 is a square hole, the limiting wall 615 may be disposed at the opposite edge of the square hole, or when the moving hole 612 is a circular hole, the limiting wall 615 may form an arc or ring structure around the circular hole, both of which can cooperate with the moving shaft 622 to ensure the smooth movement of the first stator 61.

In the embodiment of the present invention, the specific structure of the first driving member 40 can be set according to actual conditions. For example, the first drive member 40 may include two cylindrical gear structures arranged coaxially, or the first drive member 40 may include a bevel gear structure arranged non-coaxially.

For example, in some embodiments, as shown in fig. 2, 3, 6-8, the first driving member 40 may include a first rotating portion 41 and a second rotating portion 42, which are linked, that is, the first rotating portion 41 rotates to drive the second rotating portion 42 to rotate or vice versa; or the first rotating part 41 rotates and the second rotating part 42 also rotates or vice versa, the first rotating part 41 can be in transmission connection with the motor 20, so that the first rotating part 41 can rotate under the driving action of the motor 20, and the first rotating part 41 can rotate the second rotating part 42 which is arranged in a linkage manner; alternatively, the first rotating part 41 may be disconnected from the motor 20 so that the first rotating part 41 may not be driven by the motor 20 and the second rotating part 42 may not be driven by the motor 20. The first rotating part 41 or the second rotating part 42 is provided with a stopping part 411, and the second rotating part 42 can be in transmission connection with the push rod 50, so that the push rod 50 can rotate under the driving action of the second rotating part 42; alternatively, the second rotating portion 42 may be disconnected from the push rod 50, so that the push rod 50 may not be driven by the second rotating portion 42. The first rotating part 41 and the second rotating part 42 which are arranged in a linkage manner can realize the transmission and the separation with the motor 20 and the push rod 50, realize the extending state and the retracting state of the push rod 50, and have simple structure and convenient control.

When the push-out mechanism 100 is in the first state, as shown in fig. 6, after the motor 20 is powered on, the motor 20 may be in transmission connection with the first rotating portion 41 to drive the first rotating portion 41 to rotate, the first rotating portion 41 may enable the second rotating portion 42 in linkage arrangement to rotate, the second rotating portion 42 may be in transmission connection with the push rod 50 to drive the push rod 50 to move, so that the push rod 50 may be switched from the retracted state to the extended state, and the push rod 50 may be stopped against the door body or the body, so that the push rod 50 pushes the door body to open the washing chamber.

When the pushing-out mechanism 100 is in the second state, as shown in fig. 2, the motor 20 is continuously powered on, the motor 20 can be in transmission connection with the first rotating portion 41 to drive the first rotating portion 41 to rotate, the second rotating portion 42 can be disconnected from the push rod 50, so that the push rod 50 can not be driven by the second rotating portion 42, and the push rod 50 can be switched from the extended state to the retracted state, and when the push rod 50 is in the retracted state, a user can close the door body (or the user pushes the push rod 50 back to the retracted state when closing the door body, so that the closing of the door body is not affected).

When the push-out mechanism 100 is in the third state, as shown in fig. 8, the motor 20 is continuously powered on, the motor 20 can be disconnected from the first rotating portion 41, so that the first rotating portion 41 can not be driven by the motor 20, and the limiting portion 611 can abut against the stopping portion 411, so that the first rotating portion 41 can stop rotating under the blocking of the limiting portion 611, the first rotating portion 41 is prevented from continuously rotating, so that the second rotating portion 42 provided in linkage with the second rotating portion is in transmission connection with the push rod 50 again, and the push rod 50 is ensured to be pushed out only once when the motor 20 is powered on, and the subsequent operation of the dishwasher is not affected.

When the pushing-out mechanism 100 is in the fourth state, the motor 20 is powered off, the limiting part 611 is located at the first position, so that the limiting part 611 can be separated from the stopping part 411, the first rotating part 41 can continue to rotate, so that the motor 20 can be in transmission connection with the first rotating part 41 again, and the continuous rotation of the first rotating part 41 can continue to rotate the second rotating part 42 which is in linkage arrangement, so that the second rotating part 42 is in transmission connection with the push rod 50 again, or when the motor 20 is powered on again, the second rotating part 42 can be in transmission connection with the push rod 50, so that the pushing-out mechanism 100 can be switched from the fourth state to the first state, and a next movement cycle is started, and the movement process is as described above, and will not be described in detail here.

In some embodiments, as shown in fig. 2, 3, and 6 to 8, the first rotating portion 41 and the second rotating portion 42 may be relatively fixed, so as to avoid the influence on the normal use of the pushing mechanism 100 caused by relative movement during the transmission process, and the first rotating portion 41 and the second rotating portion 42 may be coaxially disposed, so that the control is more convenient, the occupied space of the pushing mechanism 100 can be effectively reduced, and the miniaturization of the pushing mechanism 100 is achieved. For example, the first rotating portion 41 and the second rotating portion 42 are integrally formed.

According to some embodiments of the present invention, as shown in fig. 2, 6 and 8, the outer periphery of the first rotating portion 41 may be provided with a first gear section 412 and a first smooth section 413, the first rotating portion 41 may be in meshing transmission with the motor 20 through the first gear section 412, so that the first rotating portion 41 may rotate under the driving action of the motor 20, the first rotating portion 41 may be disconnected from the motor 20 through the first smooth section 413, so that the first rotating portion 41 may not be driven by the motor 20, and the first rotating portion 41 has a simple structure, so as to facilitate the transmission connection and disconnection between the first rotating portion 41 and the motor 20.

In the first state and the second state, the motor 20 may be in meshing transmission with the first gear segment 412, so that the first rotating portion 41 may be driven to rotate by the meshing transmission between the motor 20 and the first gear segment 412, thereby rotating the second rotating portion 42, which is provided by the first rotating portion 41 in a linkage manner; in the third state and the fourth state, the first rotating portion 41 may be disconnected from the motor 20 by the first smooth section 413, and the motor 20 is spaced apart from the first smooth section 413, so that the first rotating portion 41 may not be rotationally controlled by the motor 20, the first rotating portion 41 may be in a free rotation state, and the engagement and separation of the transmission member 30 and the first rotating portion 41 are realized by changing the outer peripheral edge structure of the first rotating portion 41, which is simple in structure, convenient to machine and manufacture, high in assembly efficiency, and low in production cost, and the complexity of the internal structure of the push-out mechanism 100 is reduced.

According to some embodiments of the present invention, as shown in fig. 2, 3, 6 and 8, the outer periphery of the second rotating portion 42 may include a second sprocket section 421 and a second smooth section 422, the second rotating portion 42 may be in meshing transmission with the push rod 50 through the second sprocket section 421, so that the push rod 50 may move under the driving action of the second rotating portion 42, the second rotating portion 42 may be disconnected from the push rod 50 through the second smooth section 422, so that the push rod 50 may not be driven by the second rotating portion 42, and the second rotating portion 42 has a simple structure, so as to facilitate the transmission connection and disconnection between the second rotating portion 42 and the push rod 50.

In the first state, the push rod 50 can be in meshing transmission with the second gear segment 421, so that the push rod 50 can be driven to move through the meshing transmission of the second gear segment 421 and the push rod 50, and the push rod 50 can be switched from the retracted state to the extended state; in the second state, the third state and the fourth state, the second rotating portion 42 may be disconnected from the push rod 50 through the second smooth section 422, and the push rod 50 is spaced apart from the second smooth section 422, so that the push rod 50 may not be controlled or blocked by the rotation of the second rotating portion 42, the push rod 50 may be switched from the extended state to the retracted state, and the engagement and separation of the push rod 50 and the second rotating portion 42 are achieved by changing the outer peripheral structure of the second rotating portion 42, which is simple in structure, convenient to process and manufacture, reduces the complexity of the internal structure of the push-out mechanism 100, high in assembly efficiency and low in production cost.

It should be noted that the push rod 50 is disengaged from the second rotating portion 42, the motor 20 is disengaged from the first rotating portion 41, and the two structures may be separated from each other or staggered from each other to achieve the disengagement.

For example, disengagement of the push rod 50 from the second rotating portion 42 may be achieved by moving the push rod 50 and the second rotating portion 42 away from each other. Specifically, the push rod 50 and the second rotating portion 42 may be away from each other in a horizontal direction (e.g., a left-right direction shown in fig. 3), or the push rod 50 and the second rotating portion 42 may be away from each other in a vertical direction (e.g., an up-down direction shown in fig. 4), and the push rod 50 and the second rotating portion 42 may be disengaged from each other.

For example, disengagement of the motor 20 from the first rotating portion 41 may be achieved by moving the motor 20 and the first rotating portion 41 away from each other. Specifically, the motor 20 and the first rotating portion 41 may be horizontally away from each other, or the motor 20 and the first rotating portion 41 may be vertically away from each other, so that the motor 20 and the first rotating portion 41 are disengaged from each other.

According to some embodiments of the present invention, as shown in fig. 2, 3, 6-8, the push rod 50 may be provided with a rack 51, and the rack 51 may be in meshing transmission with the first driving member 40 to realize the movement of the rack 51, so as to move the push rod 50 between the extended state and the retracted state.

When the pushing-out mechanism 100 is in the first state, as shown in fig. 6, after the motor 20 is powered on, the motor 20 may be in transmission connection with the first driving part 40, so that the motor 20 may drive the first driving part 40 to rotate, the first driving part 40 may be engaged with the rack 51 to drive the rack 51 to move, so that the rack 51 may drive the push rod 50 to switch from the retracted state to the extended state, and the push rod 50 is stopped against the door body or the main body, so that the push rod 50 pushes the door body to open the washing chamber.

When the pushing mechanism 100 is in the second state, as shown in fig. 2, the motor 20 is continuously powered on, the motor 20 may be in transmission connection with the first driving member 40, so that the motor 20 may drive the first driving member 40 to rotate, the first driving member 40 may be disconnected from the rack 51, so that the rack 51 may not be subjected to an acting force or a blocking force of the first driving member 40, and the push rod 50 may be switched from the extended state to the retracted state, thereby facilitating the user to close the door body.

When the push-out mechanism 100 is in the third state, as shown in fig. 8, the motor 20 is continuously powered on, the motor 20 can be disconnected from the first driving element 40, and the limiting portion 611 can abut against the stopping portion 411, so that the first driving element 40 can not be driven by the first driving element 40, and meanwhile, the first driving element 40 can stop rotating under the blocking of the limiting portion 611, thereby avoiding that the first driving element 40 continuously rotates to enable the first driving element 40 to be in transmission connection with the push rod 50 again, ensuring that the push rod 50 can only be pushed out once when the motor 20 is powered on, and not affecting the subsequent operation of the dishwasher.

When the push-out mechanism 100 is in the fourth state, the motor 20 is powered off, the limiting portion 611 is located at the first position, so that the limiting portion 611 can be separated from the stopping portion 411, the first rotating portion 41 can continue to rotate, so that the motor 20 can be in transmission connection with the first driving member 40 again, and the first driving member 40 continues to rotate, so that the first driving member 40 can be in transmission connection with the rack 51 again, or when the motor 20 is powered on again, the first driving member 40 can be in transmission connection with the rack 51, so that the push-out mechanism 100 can be switched from the fourth state to the first state, and a next motion cycle is started.

In some embodiments of the present invention, as shown in fig. 2, 6, 7 and 8, the pushing mechanism 100 further includes a second driving element 70, one end of the second driving element 70 may be connected to the first driving element 40, and the other end of the second driving element 70 is fixed, so that the second driving element 70 may generate a force on the first driving element 40 to drive the first driving element 40 to rotate.

When the push-out mechanism 100 is in the third state, the motor 20 is kept powered on, the motor 20 can be disconnected from the first driving element 40, and the second driving element 70 can generate a force on the first driving element 40, so that the first driving element 40 can continue to rotate until the limiting portion 611 can abut against the stopping portion 411, so that the first driving element 40 can stop rotating under the blocking of the limiting portion 611. I.e. the first driving member 40, during rotation, the second driving member 70 exerts a force thereon, i.e. the first driving member 40 has a tendency to rotate.

When the push-out mechanism 100 is in the fourth state, the motor 20 is powered off, the limiting portion 611 may be separated from the stopping portion 411, so that the first driving member 40 is not resisted by the resisting action, the first driving member 40 may generate a force on the first driving member 40 through the second driving member 70, so that the first driving member 40 continues to rotate, and thus the motor 20 may be in transmission connection with the first driving member 40 again, and the first driving member 40 may be in transmission connection with the push rod 50 again, or the first driving member 40 may be in transmission connection with the push rod 50 when the motor 20 is powered on again.

The second driving element 70 generates a force to the first driving element 40, so that the first driving element 40 can continue to rotate by the action force of the second driving element 70 after being disconnected from the motor 20, and can continue to rotate after the limiting portion 611 is separated from the stopping portion 411, so that the first driving element 40 can be in transmission connection with the motor 20 again, and the first driving element 40 can be in transmission connection with the push rod 50 again, which is convenient for the next work of the pushing mechanism 100, the second driving element 70 is used efficiently, and the control of the first driving element 40 is better.

In some embodiments, as shown in fig. 7 and 8, one end of the second driving element 70 may be connected to the lower portion of the first rotating portion 41, and the other end of the second driving element 70 is fixed, so as to reduce the overall occupied volume, avoid the second driving element 70 from affecting the movement of other connecting structures, and ensure the normal operation of the pushing mechanism 100.

In some embodiments in which the pushing-out mechanism 100 includes the housing 10, the other end of the second driving element 70 may be directly fixed on the housing 10, the housing 10 is not easily moved, it is ensured that the other end of the second driving element 70 is fixed reliably, and it is avoided that other structures are added to fix the other end of the second driving element 70, which reduces the complexity of the pushing-out mechanism 100 and the overall occupied space.

In some embodiments, as shown in fig. 2, 3, 6-8, after the motor 20 is powered on, the first stator 61 is in the second position, the rotor 22 can drive the first rotating portion 41 to rotate by engaging with the first gear section 412, so as to rotate the second rotating portion 42 coaxially disposed with the first rotating portion 41, and the second rotating portion 42 rotates to engage the second gear section 421 with the rack 51, so as to drive the rack 51 to move, so that the push rod 50 can be switched from the retracted state to the extended state. When the rack 51 is separated from the second sprocket segment 421 and spaced apart from the second smooth segment 422, the rack 51 is not blocked by the second rotating portion 42, and the push rod 50 can be switched from the extended state to the retracted state. When the rotor 22 is disengaged from the first gear tooth section 412 and the rotor 22 is spaced from the first smooth section 413, so that the first rotating portion 41 may not be controlled by the rotation of the rotor 22, the first rotating portion 41 may continue to rotate by the driving of the second driving element 70, so that the limiting portion 611 is engaged with the stopping portion 411, and the first rotating portion 41 stops rotating. After the motor 20 is powered off, the first stator 61 is in the first position, the limiting portion 611 is separated from the stopping portion 411, and the first rotating portion 41 continues to rotate through the second driving member 70, so that the first gear segment 412 can be engaged with the rotor 22 to prepare for the next operation of the pushing mechanism 100.

According to some embodiments of the present invention, as shown in fig. 2, 6, 7 and 8, the second driving element 70 may include a second elastic element 71, one end of the second elastic element 71 may be connected to the first driving element 40, the other end of the second elastic element 71 is fixed, the second elastic element 71 is stretched by the rotation of the first driving element 40, so that the second elastic element 71 has a tendency to move to the retracted position, after the first driving element 40 is disengaged from the motor 20, the second elastic element 71 may drive the first driving element 40 to continue to rotate after the first driving element 40 is disengaged from the motor 20, and may continue to rotate after the limiting portion 611 is disengaged from the stopping portion 411, so that the first driving element 40 may be re-transmission-connected to the motor 20. The rotation of the first driving member 40 is controlled by the elastic deformation of the second elastic member 71, so that the structure is simple, the cost is low, and the complex structure of the push-out mechanism 100 is avoided. For example, the second elastic member 71 may be a tension spring or the like.

In some embodiments, as shown in fig. 7 and 8, the first driving element 40 may include a mounting portion 414, the mounting portion 414 protrudes out of an axial end surface of the first driving element 40, the second elastic element 71 may include a mounting ring 711, and the mounting portion 414 is rotatably engaged with the mounting ring 711, when the first driving element 40 drives the second elastic element 71 to move, the second elastic element 71 may be prevented from being damaged due to the influence of a torsional force, so that the service life of the second elastic element 71 is prolonged, and the structure is simple and the assembly is convenient. For example, the mounting portion 414 may be circular in cross-section.

In some embodiments of the present invention, as shown in fig. 2-8, the pushing mechanism 100 further includes a transmission member 30, the motor 20 may be in transmission connection with the transmission member 30 to drive the transmission member 30 to move, the transmission member 30 may be in transmission connection with the first driving member 40 to drive the first driving member 40 to move, or the transmission member 30 may be disconnected from the first driving member 40, so that the first driving member 40 may not be driven by the transmission member 30.

When the pushing mechanism 100 is in the first state, as shown in fig. 6, the motor 20 is powered, the motor 20 may be in transmission connection with the transmission member 30, the transmission member 30 may be in transmission connection with the first driving member 40, and the first driving member 40 may be in transmission connection with the push rod 50. Thereby, motor 20 can drive driving medium 30 and rotate, driving medium 30 can be connected with the transmission of first driving part 40 and drive first driving part 40 and rotate, first driving part 40 can be connected with the transmission of push rod 50 and drive the motion of push rod 50, thereby make push rod 50 switch to the state of stretching out by the withdrawal state, push rod 50 ends with the door body or body, can promote the door body and open the washing chamber, the air that can increase the washing chamber flows, steam evaporation process with higher speed, thereby realize that dish washer reduces the consumption, promote the purpose of drying effect.

When the pushing mechanism 100 is in the second state, as shown in fig. 2, the motor 20 is continuously powered, the motor 20 may be in transmission connection with the transmission member 30, the transmission member 30 may be in transmission connection with the first driving member 40, and the first driving member 40 may be disconnected from the push rod 50. Therefore, the motor 20 can drive the transmission member 30 to rotate, the transmission member 30 can be in transmission connection with the first driving member 40 to drive the first driving member 40 to rotate, the push rod 50 can be disconnected from the first driving member 40, so that the push rod 50 can not be subjected to the acting force or the blocking force of the first driving member 40, and the push rod 50 can be switched to the retraction state from the extension state, thereby facilitating the user to close the door body.

When the pushing mechanism 100 is in the third state, as shown in fig. 8, the motor 20 is continuously powered, the motor 20 can be in transmission connection with the transmission member 30, the transmission member 30 can be disconnected from the first driving member 40, and the limiting portion 611 can abut against the stopping portion 411. Therefore, the motor 20 can drive the transmission member 30 to rotate, the first driving member 40 can not be driven by the transmission member 30, and the limiting portion 611 is matched with the stopping portion 411, so that the first driving member 40 can stop rotating under the blocking of the limiting portion 611, the first driving member 40 is prevented from continuously rotating and being in transmission connection with the push rod 50 again to cause the push rod 50 to be pushed out again, and the push rod 50 is ensured to be pushed out only once when the motor 20 is electrified, and the subsequent operation of the dishwasher is not influenced.

When the pushing mechanism 100 is in the fourth state, the motor 20 is powered off, the transmission member 30 does not rotate, the limiting portion 611 is located at the first position, and the limiting portion 611 is separated from the stopping portion 411, so that the transmission member 30 can be in transmission connection with the first driving member 40 again, and the first driving member 40 can be in transmission connection with the push rod 50 again, or when the motor 20 is powered on again, the first driving member 40 can be in transmission connection with the push rod 50, so that the pushing mechanism 100 can be switched from the fourth state to the first state, and a next movement cycle is started.

Through increasing driving medium 30, driving medium 30 can be connected in order to drive first driving piece 40 motion with first driving piece 40 transmission, and driving medium 30 can reduce the rotational speed that transmits first driving piece 40, improves moment, has increased push rod 50's thrust, makes push rod 50's thrust bigger, can ensure to push the door body open in order to open the washing chamber.

According to some embodiments of the present invention, as shown in fig. 2 to 8, the transmission member 30 may be a transmission gear, or the transmission member 30 may include at least one transmission gear, so that the transmission of the transmission member 30 with the push rod 50 and the motor 20 is more efficient, the assembly of the transmission gear is simple, the processing and the manufacturing are convenient, the manufacturing efficiency of the push-out mechanism 100 is improved, and the production cost and the production efficiency of the dishwasher can be reduced.

In some embodiments, as shown in fig. 2-8, the transmission gear may comprise a plurality of transmission gears, the plurality of transmission gears may be engaged with each other two by two, and one of the transmission gears may be in transmission connection with the motor 20, and the other transmission gear may be in transmission connection with the first driving member 40. The power of the motor 20 can be transmitted to the first driving member 40 through the engagement of a plurality of transmission gears, so that the rotating speed transmitted to the first driving member 40 can be reduced, the moment is increased, the thrust of the push rod 50 is larger, and the door body can be pushed open to open the washing chamber.

In the embodiment of the present invention, the number of the transmission gears can be flexibly set according to actual situations, for example, the transmission gears can be three as shown in fig. 2, and also can be two, four, five, six or more, which is within the protection scope of the present invention.

In the embodiment of the present invention, the specific structure of the transmission member 30 can be set according to actual conditions.

In some embodiments, the transmission member 30 may be a single gear structure, and the transmission is realized by a plurality of single gears engaged with each other. Or the transmission member 30 may be two coaxial rotating gear structures, transmission may be achieved by meshing a plurality of coaxial rotating gears with each other, and a space in the height direction may be utilized, and the plurality of gears may overlap each other in the height space, effectively reducing the overall occupied area of the push-out mechanism 100. Still alternatively, the transmission member 30 may be a single gear and a coaxial gear, and the transmission is realized by engaging a plurality of single gears with a plurality of coaxial gears. The push-out mechanism 100 can select different gears for meshing transmission according to actual application conditions, and different use requirements are met.

In some embodiments, as shown in fig. 2, 3, 6-8, the transmission member 30 may include a first transmission gear 31, a second transmission gear 32 and a third transmission gear 33, the first transmission gear 31 includes a first transmission gearwheel 311 and a first transmission pinion 312 that rotate coaxially, the second transmission gear 32 includes a second transmission gearwheel 321 and a second transmission pinion 322 that rotate coaxially, and the third transmission gear 33 includes a third transmission gearwheel 331 and a third transmission pinion 332 that rotate coaxially. The first driving gearwheel 311 is engaged with the magnetic rotor gearwheel 221, the first driving pinion 312 is engaged with the second driving gearwheel 321, the second driving pinion 322 is engaged with the third driving gearwheel 331, the third driving pinion 332 is engaged with the first rotating part 41, and the second rotating part 42 is engaged with the rack 51.

After the motor 20 is powered on, the rotor 22 rotates, the rotor 22 can rotate to drive the magnetic rotor gear 221 to rotate, the magnetic rotor gear 221 drives the first transmission gearwheel 311 to rotate by being meshed with the first transmission gearwheel 311, the first transmission gearwheel 311 drives the second transmission gearwheel 321 to rotate by being meshed with the first transmission gearwheel 312, the second transmission gearwheel 321 drives the third transmission gearwheel 331 to rotate by being meshed with the second transmission gearwheel 322, the third transmission gearwheel 331 drives the first rotating part 41 to rotate by being meshed with the rack 51, so that the rack 51 moves by being meshed with the second rotating part 42 and the push rod 50 is pushed out. The rotating speed of the first rotating part 41 can be reduced through meshing transmission of a plurality of gears, so that the rotating speed of the second rotating part 42 is reduced, the torque is improved, the thrust of the push rod 50 is increased, the push rod 50 has large acting force, the door body can be pushed open, and the washing chamber can be opened. Meanwhile, the occupied area can be reduced by meshing a plurality of gears which are coaxially driven, and the requirement of miniaturization of the push-out mechanism 100 is met.

In some embodiments of the present invention, as shown in fig. 2, 3, and 6-8, the push-out mechanism 100 may further include a reset element 80, the reset element 80 may be connected to the push rod 50, and after the push rod 50 is disengaged from the first driving element 40, the push rod 50 may drive the push rod 50 to switch from the extended state to the retracted state through the reset element 80, so that the push rod 50 may not affect the closing of the door body, and the washing chamber may be closed conveniently.

In some embodiments, as shown in fig. 2, 3, 6-8, the restoring member 80 may include a third elastic member 81, one end of the third elastic member 81 may be fixed, and the other end of the third elastic member 81 may be connected to the push rod 50. Because one end of the third elastic element 81 is fixed, when the push rod 50 is in the extending state, the third elastic element 81 can be compressed, so that the third elastic element 81 has an acting force which enables the push rod 50 to move in the opposite direction, after the push rod 50 is separated from the first driving element 40, the push rod 50 can not be controlled by the first driving element 40, the third elastic element 81 can drive the push rod 50 to be switched to the retracting state from the extending state under the action of elastic deformation, the third elastic element 81 is simple in structure, stable in control and low in cost, and the complex structure of the push-out mechanism 100 is avoided. For example, the third elastic member 81 may be a compression spring or the like.

According to some embodiments of the present invention, as shown in fig. 1 to 3, the push-out mechanism 100 may further include a housing 10, and the motor 20, the first driving member 40 and the push rod 50 may be disposed in the housing 10, so as to prevent the motor 20 and the first driving member 40 from being exposed, so that the appearance of the push-out mechanism 100 is simple and beautiful, and the protection of the motor 20 and the first driving member 40 is facilitated, so as to prevent the motor 20 and the first driving member 40 from directly contacting hot and humid air of the dishwasher or impurities from entering to affect the normal operation of the push-out mechanism 100, and to improve the service life of the push-out mechanism 100.

In some embodiments, as shown in fig. 1, the housing 10 may include an upper housing 101 and a lower housing 102, the upper housing 101 and the lower housing 102 are detachably engaged to facilitate mounting the motor 20, the first driving member 40 and the push rod 50 to the housing 10, and maintenance or replacement of the internal components may be facilitated by the detachment of the upper housing 101 and the lower housing 102.

In some embodiments of the push-out mechanism 100 including the transmission member 30, as shown in fig. 1 to 3, the transmission member 30 may be disposed in the housing 10, so as to prevent the transmission member 30 from being exposed, so that the push-out mechanism 100 has a simple and beautiful appearance, and is beneficial to protecting the transmission member 30, so as to prevent the transmission member 30 from being directly contacted with hot and humid air of the dishwasher or impurities from entering to affect the normal operation of the push-out mechanism 100, and to improve the service life of the push-out mechanism 100.

In some embodiments, as shown in fig. 1 to 3, when the push rod 50 is in the extended state, the push rod 50 may partially extend out of the housing 10, so that the push rod 50 may abut against the door body or the body, so that the push rod 50 may push the door body, thereby opening the washing chamber; when the push rod 50 is in the retraction state, the push rod 50 may be located in the housing 10, the closing of the door body is not affected, the washing chamber is convenient to close, and the push rod 50 is located in the housing 10, which is beneficial to protecting the push rod 50.

In some embodiments, as shown in fig. 2, 3, 6-8, the housing 10 may include a connecting portion 11, the connecting portion 11 is located at an outlet of the push rod 50 at the housing 10, the push rod 50 includes a push-out portion 52, the push-out portion 52 is connected with the rack 51, and the push-out part 52 has a protruding state of partially protruding out of the housing 10 and a retracted state of being located inside the housing 10, the push-out part 52 has a mounting space 521 extending along the length, the mounting space 521 has an opening 522 extending along the length, the opening 522 communicates with the mounting space 521, and the connecting part 11 can extend into the installation space 521 through the opening 522, the connecting part 11 can move along the opening 522, one end of the third elastic part 81 can be connected with the connecting part 11, the other end of the third elastic part 81 can be connected with the inner wall of the installation space 521, the positioning of the third elastic part 81 is realized, the positioning of the third elastic part 81 is reliable, and the structure is simple. And the push rod 50 can be prevented from being influenced by the connecting part 11 during the moving process through the opening 522 extending along the length, thereby ensuring the convenient moving.

In some embodiments, as shown in fig. 2 and 3, the installation space 521 has an installation opening 523, the third elastic element 81 can be installed in the installation space 521 through the installation opening 523, and the third elastic element 81 can be conveniently fixed through the installation opening 523, so that the third elastic element 81 can be installed more conveniently and quickly, the connection is stable, and the assembly efficiency is improved. For example, the mounting opening 523 may be two spaced apart from each other, so that the third elastic member 81 can be conveniently mounted and the third elastic member 81 is prevented from being removed from the mounting opening 523.

In some embodiments, as shown in fig. 2, 3, 6-8, the push rod 50 further includes an avoiding structure 53, the avoiding structure 53 is connected to the rack 51, the avoiding structure 53 can extend along the length of the rack 51, and the avoiding structure 53 avoids to one side (for example, the left side shown in fig. 3) of the transmission member 30, so as to avoid the push rod 50 or the transmission member 30 from being damaged due to the contact with the transmission member 30 during the movement of the push rod 50, and ensure the normal operation of the push-out mechanism 100.

In some embodiments, as shown in fig. 2 and 3, the housing 10 may include a limiting protrusion 12, the limiting protrusion 12 is disposed to protrude from an inner surface of the housing 10, the avoiding structure 53 further has a protruding rib 531, and the protruding rib 531 can be matched with the limiting protrusion 12 to position the push rod 50 when retracting, so as to prevent the push rod 50 from being damaged or affecting normal use when touching an internal structure due to transitional retraction.

In some embodiments, as shown in fig. 1-8, the ejector mechanism 100 may include a housing 10, a motor 20, a transmission 30, a first driving member 40, and a push rod 50. The motor 20, the transmission member 30 and the first driving member 40 may be disposed in the housing 10, and the push rod 50 may be at least partially disposed in the housing 10.

As shown in fig. 2 to 8, the motor 20 may include a limiting portion 611 and a rotor 22, the rotor 22 may be in transmission connection with the transmission member 30, the transmission member 30 may be driven to rotate when the rotor 22 rotates, and the limiting portion 611 may have a first position and a second position. When the motor 20 is in the power-on state, the limiting portion 611 may be located at the second position, and at this time, the limiting portion 611 and the blocking portion 411 may be engaged; when the motor 20 is in the power-off state, the limiting portion 611 may be located at the first position, and during the rotation of the first driving member 40, the limiting portion 611 does not engage with the stopping portion 411.

As shown in fig. 2, 3, and 6-8, the first driving member 40 may include a first rotating portion 41 and a second rotating portion 42, and the first rotating portion 41 and the second rotating portion 42 may be linked. The first rotating portion 41 can be in transmission connection with the transmission member 30, so that the first rotating portion 41 can rotate under the driving action of the transmission member 30, and the second rotating portion 42 can be driven to rotate by the rotation of the first rotating portion 41; alternatively, the first rotating portion 41 may be disconnected from the transmission member 30, so that the first rotating portion 41 may not be driven by the transmission member 30, and the first rotating portion 41 may have a tendency to rotate. The first rotating portion 41 or the second rotating portion 42 may be provided with a stopping portion 411, and the stopping portion 411 can abut against the limiting portion 611, so that the first rotating portion 41 and the second rotating portion 42 stop rotating under the abutting action of the limiting portion 611.

As shown in fig. 2 and fig. 3, the push rod 50 may be in transmission connection with the second rotating portion 42, so that the push rod 50 may move under the driving action of the second rotating portion 42; alternatively, the push rod 50 may be disconnected from the second rotating portion 42, so that the push rod 50 may not be driven by the second rotating portion 42. Thereby, the push rod 50 is caused to have an extended state and a retracted state. When the push rod 50 is in the extended state, the push rod 50 may partially extend out of the housing 10, and the push rod 50 stops against the door body or the body, so that the door body is opened, thereby opening the washing chamber; when the push rod 50 is in the retracted state, the push rod 50 may be located in the housing 10, which does not affect the closing of the door body, and facilitates the closing of the washing chamber.

During the movement of the pushing mechanism 100, the pushing mechanism 100 has a first state, a second state, a third state and a fourth state.

When the pushing mechanism 100 is in the first state, as shown in fig. 6, after the motor 20 is powered on, the motor 20 may be in transmission connection with the transmission member 30, the transmission member 30 may be in transmission connection with the first driving member 40, and the first driving member 40 may be in transmission connection with the push rod 50. Therefore, the rotation of the rotor 22 can drive the transmission member 30 to rotate, the transmission member 30 can be in transmission connection with the first driving member 40 to drive the first driving member 40 to rotate, the first driving member 40 can be in transmission connection with the push rod 50 to drive the push rod 50 to be switched from a retraction state to an extension state, and the push rod 50 is stopped against the door body or the body, so that the push rod 50 can push the door body to open the washing chamber.

When the pushing mechanism 100 is in the second state, as shown in fig. 2, the motor 20 is continuously powered, the motor 20 may be in transmission connection with the transmission member 30, the transmission member 30 may be in transmission connection with the first driving member 40, and the first driving member 40 may be disconnected from the push rod 50. Therefore, the rotor 22 rotates to drive the transmission member 30 to rotate, the transmission member 30 is connected with the first driving member 40 in a transmission manner to drive the first rotating portion 41 to rotate, the push rod 50 is disengaged from the first driving member 40, so that the push rod 50 is not subjected to the acting force or blocking force of the first driving member 40, the push rod 50 can be switched to the retraction state from the extension state, the push rod 50 is located in the casing 10, and a user can close the door body conveniently.

When the push-out mechanism 100 is in the third state, as shown in fig. 8, the motor 20 is continuously powered, the motor 20 may be in transmission connection with the transmission member 30, the transmission member 30 may be disconnected from the first driving member 40, the limiting portion 611 may abut against the stopping portion 411, or the first driving member 40 may continue to rotate until the first driving member 40 abuts against the limiting portion 611 to stop rotating. Therefore, the rotor 22 can drive the transmission member 30 to rotate, the first driving member 40 is not affected by the acting force of the transmission member 30, and the limiting portion 611 is matched and abutted against the stopping portion 411, so that the first driving member 40 can stop rotating under the blocking of the limiting portion 611, the first driving member 40 is prevented from continuously rotating and being in transmission connection with the push rod 50 to cause the push rod 50 to be pushed out again, and the push rod 50 is ensured to be pushed out only once when the motor 20 is powered on without affecting the subsequent operation of the dishwasher.

When the push-out mechanism 100 is in the fourth state, the motor 20 is powered off, the rotor 22 does not rotate, so that the transmission member 30 does not rotate, the limiting portion 611 can be located at the first position, the limiting portion 611 can be separated from the stopping portion 411, so that the first driving member 40 is not blocked by the limiting portion 611, the first driving member 40 can continue to rotate, the transmission member 30 can be in transmission connection with the first driving member 40 again, and the first driving member 40 can be in transmission connection with the push rod 50 again, or when the motor 20 is powered on again, the first driving member 40 can be in transmission connection with the push rod 50, so that the push-out mechanism 100 can be switched from the fourth state to the first state, and a next motion cycle starts.

The following detailed description of the ejector mechanism 100 according to one embodiment of the present invention is made with reference to the accompanying drawings, and it is to be understood that the following description is illustrative only and is not to be construed as limiting the invention.

Referring to fig. 1 to 8, the push-out mechanism 100 may include a housing 10, a motor 20, a transmission member 30, a first driving member 40, a second driving member 70, a restoring member 80, and a push rod 50.

As shown in fig. 1 to 3, the housing 10 may include an upper housing 101 and a lower housing 102, the motor 20, the transmission member 30 and the first driving member 40 may be disposed in the upper housing 101 and the lower housing 102, and the push rod 50 may be at least partially disposed in the upper housing 101 and the lower housing 102. The lower case 102 may include a connecting portion 11 and a limit protrusion 12, the connecting portion 11 is located at an outlet of the push rod 50 in the lower case 102, and the limit protrusion 12 is disposed to protrude from an inner surface of the case 10.

As shown in fig. 2 to 8, the motor 20 may include a stator 21 and a rotor 22, the rotor 22 may include a magnetic rotor gear 221, the stator 21 includes a first stator 61, a second stator 62, a coil 63 and a first elastic member 211, the first stator 61 and the second stator 62 are disposed opposite to each other, the coil 63 and the first elastic member 211 are disposed between the first stator 61 and the second stator 62, the first stator 61 is provided with a position-limiting portion 611, and the position-limiting portion 611 has a first position and a second position. The position-limiting portion 611 may include an extension 613 and a position-limiting section 614, one end of the extension 613 is connected to the outer circumferential wall of the first stator 61, the extension 613 extends outwards along the outer circumferential wall, the other end of the extension 613 is connected to one end of the position-limiting section 614, and the other end of the position-limiting section 614 extends towards the second stator 62. The second stator 62 is provided with three limiting shafts 621, the three limiting shafts 621 are spaced apart along the circumferential direction of the second stator 62, the first elastic member 211 is sleeved on the limiting shafts 621, and the first stator 61 is slidable along the limiting shafts 621. The second stator 62 is provided with three moving shafts 622, the three moving shafts 622 are spaced apart along the circumferential direction of the second stator 62, the first stator 61 is provided with three moving holes 612, and the three moving holes 612 are respectively matched with the three moving shafts 622.

As shown in fig. 2, 3, 6-8, the first driving member 40 may include a first rotating portion 41 and a second rotating portion 42, the first rotating portion 41 and the second rotating portion 42 are relatively fixed, and the first rotating portion 41 and the second rotating portion 42 are coaxially disposed. The outer circumference of the first rotating portion 41 may be provided with a first sprocket section 412 and a first smooth section 413, and the outer circumference of the second rotating portion 42 may include a second sprocket section 421 and a second smooth section 422. The stopping portion 411 is a protruding structure protruding from an axial end surface of the first rotating portion 41, and the cross section of the stopping portion 411 is triangular.

As shown in fig. 2, 3, 6-8, the push rod 50 may include a rack 51, a pushing portion 52, and an avoiding structure 53. The push-out part 52 is connected with the rack 51, the push-out part 52 has a protruding state partially protruding out of the housing 10 and a retracted state located in the housing 10, the push-out part 52 has an installation space 521 extending along the length, the installation space 521 has an opening 522 and an installation opening 523, the opening 522 extends along the length of the installation space 521, the opening 522 is communicated with the installation space 521, the connecting part 11 protrudes into the installation space 521 through the opening 522, and the connecting part 11 is movable along the opening 522. The avoiding structure 53 is connected with the rack 51, the avoiding structure 53 can extend along the length of the rack 51, the avoiding structure 53 avoids the left side of the transmission member 30, and the avoiding structure 53 is provided with a convex rib 531.

As shown in fig. 6 to 8, the transmission member 30 may include a first transmission gear 31, a second transmission gear 32 and a third transmission gear 33, the first transmission gear 31 includes a first transmission gear wheel 311 and a first transmission pinion 312 that rotate coaxially, the second transmission gear 32 includes a second transmission gear wheel 321 and a second transmission pinion 322 that rotate coaxially, and the third transmission gear 33 includes a third transmission gear wheel 331 and a third transmission pinion 332 that rotate coaxially. The first driving gearwheel 311 is engaged with the magnetic rotor gearwheel 221, the first driving pinion 312 is engaged with the second driving gearwheel 321, the second driving pinion 322 is engaged with the third driving gearwheel 331, the third driving pinion 332 is engaged with the first gear segment 412, and the second rotating part 42 is engaged with the rack 51.

As shown in fig. 7 and 8, the second driving member 70 may include a second elastic member 71, one end of the second elastic member 71 may be connected to the first rotating portion 41, and the other end of the second elastic member 71 is fixed to the housing 10.

As shown in fig. 2 and 3, the restoring member 80 may include a third elastic member 81, the third elastic member 81 is installed in the installation space 521 through an installation opening 523, one end of the third elastic member 81 is connected to the connection portion 11, and the other end of the third elastic member 81 is connected to the inner wall of the installation space 521.

Referring to fig. 2 to 8, during the movement of the push-out mechanism 100, the push-out mechanism 100 has a first state, a second state, a third state and a fourth state.

When the push-out mechanism 100 is in the first state, as shown in fig. 6, after the motor 20 is powered on, the first stator 61 is attracted to the coil 63, and the first stator 61 can be located at the second position, so that the stopper 611 is located at the second position. Meanwhile, the magnetic rotor gear 221 starts to rotate, the magnetic rotor gear 221 drives the first transmission gearwheel 311 to rotate by meshing with the first transmission gearwheel 311, the first transmission gearwheel 311 drives the second transmission gearwheel 321 to rotate by meshing with the first transmission pinion 312, the second transmission gearwheel 321 drives the third transmission gearwheel 331 to rotate by meshing with the second transmission pinion 322, the third transmission gearwheel 331 drives the first rotating part 41 to rotate by meshing with the first gear section 412 through the third transmission pinion 332, the first rotating part 41 can drive the coaxially arranged second rotating part 42 to rotate, the second gear section 421 of the second rotating part 42 is meshed with the rack 51 to move the rack 51, thereby, part of the pushing part 52 extends out of the casing 10, the push rod 50 is switched from the retracted state to the extended state, the push rod 50 is stopped against the door body or the body, and the push rod 50 can push the door body to open the washing chamber.

When the pushing mechanism 100 is in the second state, as shown in fig. 2, the motor 20 is continuously powered on, the magnetic rotor gear 221 starts to rotate, the magnetic rotor gear 221 drives the first transmission gearwheel 311 to rotate by engaging with the first transmission gearwheel 311, the first transmission gearwheel 311 drives the second transmission gearwheel 321 to rotate by engaging with the first transmission pinion 312, the second transmission gearwheel 321 drives the third transmission gearwheel 331 to rotate by engaging with the second transmission pinion 322, the third transmission gearwheel 331 drives the first rotating part 41 to rotate by engaging with the first gear section 412 by engaging with the third transmission pinion 332, the second rotating part 42 is disconnected from the rack 51 by the second smooth section 422, and the second smooth section 422 is spaced apart from the rack 51, so that the rack 51 is not subjected to the acting force or blocking force of the second rotating part 42, the push rod 50 can be switched from the extended state to the retracted state, the rib 531 can be matched with the limit convex part 12 to position the retraction state of the push rod 50, so that the push rod 50 is ensured to be positioned in the shell 10, and a user can close the door body conveniently.

When the pushing mechanism 100 is in the third state, as shown in fig. 8, the motor 20 is continuously powered on, the magnetic rotor gear 221 starts to rotate, the magnetic rotor gear 221 drives the first transmission gearwheel 311 to rotate by engaging with the first transmission gearwheel 311, the first transmission gearwheel 311 drives the second transmission gearwheel 321 to rotate by engaging with the first transmission pinion 312, the second transmission gearwheel 321 drives the third transmission gearwheel 331 to rotate by engaging with the second transmission pinion 322, the third transmission gearwheel 331 drives the third transmission pinion 332 to rotate coaxially, the first rotating part 41 is disconnected from the third transmission pinion 332 by the first smooth section 413, the third transmission pinion 332 is spaced from the first smooth section 413, the second rotating part 42 is disconnected from the rack 51 by the second smooth section 422, and the second smooth section 422 is spaced from the rack 51. So that the rack 51 may not be acted upon or blocked by the second rotating part 42 and the first rotating part 41 may not be acted upon or blocked by the third driving pinion 332. At this time, the second elastic element 71 generates a force on the first rotating portion 41, and the first rotating portion 41 can continue to rotate until the limiting portion 611 abuts against the stopping portion 411, so that the first rotating portion 41 stops rotating.

When the pushing mechanism 100 is in the fourth state, the motor 20 is powered off, the magnetic rotor gear 221 does not rotate, and the first driving gearwheel 311, the first driving pinion 312, the second driving gearwheel 321, the second driving pinion 322, the third driving gearwheel 331 and the third driving pinion 332 stop rotating. Meanwhile, the first stator 61 is spaced from the coil 63, the first stator 61 can be located at the first position, the limiting portion 611 is located at the first position, the limiting portion 611 can be separated from the stopping portion 411, so that the first rotating portion 41 is not blocked by the limiting portion 611, the first rotating portion 41 can continue to rotate by the action force of the second elastic member 71, the third transmission pinion 332 can be meshed with the first pinion section 412 again, and the second pinion section 421 can be meshed with the push rod 50 again, so that the pushing mechanism 100 can be switched from the fourth state to the first state, the next movement cycle can be started, the movement process is as described above, and detailed description is omitted here.

Through the motion process of the first state to the fourth state of the push-out mechanism 100, the whole process that the push rod 50 is switched to the extending state from the retracting state and then switched to the retracting state from the extending state is completed, so that the push rod 50 can push the door body open, the washing chamber is opened, the damp and hot steam in the washing chamber can be discharged to the outside, the air flow of the washing chamber can be increased, the steam evaporation process is accelerated, and the purposes of reducing power consumption and improving the drying effect of the dish washing machine are achieved. Thereafter, the push rod 50 can be located in the casing 10, the closing of the door body is not affected, the washing chamber is convenient to close, a user can close the door body when needing to close the door body, long-time waiting is not needed, and the user has better use experience.

The dishwasher according to the embodiment of the invention comprises a body, a door body and the above-mentioned push-out mechanism 100, wherein the body is internally provided with a washing chamber, the door body can be arranged on the body, and the opening or closing of the washing chamber can be realized through the opening or closing of the door body. When the door body opens the washing chamber, a user can take and place tableware into the washing chamber; when the door body closes the washing chamber, the dish-washing machine can work to wash the tableware in the washing chamber. Push-off mechanism 100 can establish at the body or the door body, push rod 50 can end with the door body or body, make push rod 50 can promote the door body, thereby open the washing cavity, open the washing cavity through the dry stage at the washing procedure, can make the interior damp and hot steam of washing cavity arrange the outside, can increase the air flow of washing cavity, steam evaporation process accelerates, thereby realize that dishwasher reduces the consumption, promote drying effect's purpose, and avoided the manual problem that opens the door body and need stimulate with certain external force, it is more convenient to make the user when using, user experience has been improved.

Because the push-out mechanism 100 according to the embodiment of the present invention has the above-mentioned beneficial technical effects, the dishwasher according to the embodiment of the present invention can push out the push rod 50 through the transmission connection, and retract the push rod 50 when the first driving member 40 is disconnected from the push rod 50, thereby avoiding the disadvantage that the wax motor as the push-out mechanism in the related art needs to wait for natural cooling to retract the push rod, generating less heat in the transmission connection, avoiding the potential safety hazard caused by heat generation, ensuring the use safety, and enabling the user to have better use experience. The first driving member 40 can stop rotating under the blocking of the limiting part 611, so that the push rod 50 can be ejected only once when the motor 20 is powered on, and the situation that the position of the push rod 50 is detected by a control system such as a sensor to control the power failure of the motor 20 is eliminated, so that the circuit of the ejecting mechanism 100 is simple, the complexity of the internal structure is reduced, and the production cost is reduced.

Other constructions and operations of the dishwasher and the push-out mechanism 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "embodiment," "particular embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An ejector mechanism, comprising:

the motor comprises a limiting part, the limiting part is provided with a first position and a second position, the limiting part is located at the second position when the motor is in a power-on state, and the limiting part is located at the first position when the motor is in a power-off state;

the first driving piece is used for being in transmission connection with or disconnection from the motor, the first driving piece is provided with a stopping part, and the stopping part is used for abutting against the limiting part so as to stop the first driving piece from rotating;

the push rod is used for being in transmission connection or disconnection connection with the first driving piece and has an extending state and a retracting state;

the push-out mechanism has a first state to a fourth state during movement:

in a first state, the motor is electrified, the motor is in transmission connection with the first driving piece, and the first driving piece is in transmission connection with the push rod so that the push rod is switched from the retraction state to the extension state;

in a second state, the motor is kept electrified, the motor is in transmission connection with the first driving piece, and the first driving piece is disconnected with the push rod so that the push rod can be switched from the extending state to the retracting state;

in a third state, the motor is kept electrified, the motor is disconnected with the first driving piece, and the limiting part abuts against the stopping part;

in a fourth state, the motor is powered off, and the limiting part is separated from the stopping part, so that the motor is in transmission connection with the first driving part again, and the first driving part is in transmission connection with the push rod again or is in transmission connection with the push rod when the motor is powered on again.

2. The ejector mechanism of claim 1, wherein in the third state, the first drive member is disconnected from the push rod.

3. A push-out mechanism according to claim 1, wherein the motor comprises a stator and a rotor, the rotor is rotatably disposed in the stator, the rotor is configured to be drivingly connected or disconnected with the first driving member, the stator comprises a first stator, the first stator is provided with the position-limiting portion, the first stator is located at the second position when the motor is in an energized state, and the first stator is located at the first position when the motor is in a de-energized state.

4. A push-out mechanism according to claim 3, wherein the stator further comprises a second stator and a coil, the first stator and the second stator being disposed opposite each other, the coil being disposed between the first stator and the second stator;

when the coil is electrified, the first stator and the coil are attracted so that the limiting part is located at the second position;

the first stator is spaced apart from the coil when the coil is de-energized to place the restraint portion in the first position.

5. An ejector mechanism according to claim 4, wherein the retainer portion is a raised formation provided on the peripheral wall of the first stator and/or the retainer portion extends towards the second stator.

6. A push-out mechanism as claimed in claim 4, wherein the stator further comprises a first resilient member disposed between the first stator and the second stator to drive the first stator towards a direction away from the second stator.

7. An ejector mechanism according to claim 6, wherein the second stator is provided with a limit shaft, the first elastic member is sleeved on the limit shaft, and the first stator is slidable along the limit shaft.

8. The ejector mechanism according to claim 7, wherein the stopper shaft is plural, the plural stopper shafts are spaced apart in a circumferential direction of the second stator, the plural first elastic members are plural, and the plural first elastic members correspond to the plural stopper shafts one to one.

9. The ejector mechanism as claimed in claim 1, wherein the first driving member includes a first rotating portion and a second rotating portion, the first rotating portion is configured to be coupled with or decoupled from the motor, the first rotating portion or the second rotating portion is configured with the stopping portion, and the second rotating portion is configured to be coupled with or decoupled from the push rod.

10. A push-out mechanism according to claim 9, wherein the first and second rotary portions are relatively fixed and coaxially arranged.

11. The ejector mechanism of claim 9, wherein the first rotating portion has a first sprocket section and a first smooth section on an outer periphery thereof, the first rotating portion is in meshing transmission with the motor through the first sprocket section, and the first rotating portion is disconnected from the motor through the first smooth section.

12. The ejector mechanism of claim 9, wherein the second rotating portion has a second sprocket section and a second smooth section on an outer periphery thereof, the second rotating portion is in meshing transmission with the push rod through the second sprocket section, and the second rotating portion is disconnected from the push rod through the second smooth section.

13. The ejector mechanism of claim 1, wherein the push rod is provided with a rack for meshing transmission with the first drive member.

14. A push-out mechanism as claimed in claim 1, further comprising a second drive member, one end of the second drive member being connected to the first drive member, the other end of the second drive member being fixed to generate a force on the first drive member;

in a third state, the motor is kept electrified, the motor is disconnected with the first driving piece, and the second driving piece generates force on the first driving piece so that the first driving piece continuously rotates to be abutted against the stopping part;

in a fourth state, the motor is powered off, the limiting part is separated from the stopping part, and the second driving part generates force on the first driving part to enable the first driving part to continue rotating, so that the motor is in transmission connection with the first driving part again, and the first driving part is in transmission connection with the push rod again or is in transmission connection with the push rod when the motor is powered on again.

15. A push-out mechanism as claimed in claim 14, wherein the second drive member comprises a second resilient member, one end of the second resilient member being connected to the first drive member, the other end of the second resilient member being fixed.

16. A push-out mechanism as claimed in claim 1, further comprising a transmission member, said motor being in driving connection with said transmission member, said transmission member being adapted to be in driving connection with or disconnected from said first driving member;

in a first state, the motor is electrified, the motor is in transmission connection with the transmission piece, the transmission piece is in transmission connection with the first driving piece, and the first driving piece is in transmission connection with the push rod so as to enable the push rod to be switched from the retraction state to the extension state;

in a second state, the motor is kept electrified, the motor is in transmission connection with the transmission piece, the transmission piece is in transmission connection with the first driving piece, and the first driving piece is disconnected from the push rod so that the push rod can be switched from the extending state to the retracting state;

in a third state, the motor is powered on, the motor is in transmission connection with the transmission piece, the transmission piece is disconnected from the first driving piece, and the limiting part abuts against the stopping part;

in a fourth state, the motor is powered off, the limiting part is separated from the stopping part, the transmission part is in transmission connection with the first driving part again, and the first driving part is in transmission connection with the push rod again or in transmission connection with the push rod when the motor is powered on again.

17. A push-out mechanism according to claim 16, wherein the transmission member is a transmission gear or the transmission member comprises at least one transmission gear.

18. The ejector mechanism of claim 1, further comprising a reset member coupled to the push rod to drive the push rod from the extended state to the retracted state.

19. A push-out mechanism as claimed in claim 18, wherein the return member comprises a third resilient member, one end of which is fixed and the other end of which is connected to the push rod to drive the push rod to switch from the extended state to the retracted state.

20. The ejector mechanism of claim 1, further comprising a housing, said motor, said first drive member and said push rod being disposed within said housing.

21. An ejector mechanism, comprising:

a housing;

the motor is arranged in the shell and comprises a rotor and a limiting part, the limiting part is provided with a first position and a second position, the limiting part is located at the second position when the motor is in a power-on state, and the limiting part is located at the first position when the motor is in a power-off state;

the transmission piece is arranged in the shell and is in transmission connection with the rotor;

the first driving piece is arranged in the shell and comprises a first rotating part and a second rotating part which are arranged in a linkage manner, the first rotating part is used for being in transmission connection with or disconnection from the transmission piece and has a rotating trend, the first rotating part or the second rotating part is provided with a stopping part, and the stopping part is used for abutting against the limiting part so as to stop the first rotating part and the second rotating part from rotating;

the push rod is at least partially arranged in the shell and is used for being in transmission connection with or disconnection from the second rotating part, and the push rod has an extending state of at least partially extending out of the shell and a retracting state of at least partially retracting into the shell;

the push-out mechanism has a first state to a fourth state during movement:

in a third state, the motor is powered on, the motor is in transmission connection with the transmission piece, the transmission piece is disconnected from the first driving piece, and the limiting part abuts against the stopping part or the first driving piece continues to rotate until the limiting part abuts against the limiting part;

in a fourth state, the motor is powered off, the limiting part is separated from the stopping part, and the first driving part continues to rotate, so that the driving part is in transmission connection with the first driving part again, and the first driving part is in transmission connection with the push rod again or is in transmission connection with the push rod when the motor is powered on again.

22. A dishwasher, comprising:

a body having a washing chamber therein;

the door body is arranged on the body to open or close the washing chamber; and

the push-out mechanism according to any one of claims 1 to 21, wherein the push-out mechanism is provided at the body or the door body, and the push rod is adapted to stop against the door body or the body to push the door body to open the washing chamber.