CN110552555A

CN110552555A - Door lock for electric appliance

Info

Publication number: CN110552555A
Application number: CN201910873673.0A
Authority: CN
Inventors: 王立孟
Original assignee: WEIZHOU TIANJIAN ELECTRICAL EQUIPMENT CO Ltd
Current assignee: WEIZHOU TIANJIAN ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2019-12-10
Anticipated expiration: 2039-09-16
Also published as: CN110552555B

Abstract

The invention relates to the technical field of door locks, in particular to an electric appliance door lock. The door lock comprises a door hook, a lock shell, a rotating part resetting part and a first locking component, wherein the door hook is suitable for being installed on a door plate of an electric appliance; the lock shell is suitable for being installed on the electric appliance body and is provided with a jack for inserting the door hook; the rotating piece is rotatably arranged in the lock shell through a connecting shaft, is provided with a combining part combined with the door hook and is provided with an initial position of the rotating piece and a locking position of the rotating piece combined with the door hook; the rotating part resetting piece is connected with the rotating part and used for elastically driving the rotating part to reset the rotating part from a rotating part locking position to a rotating part initial position; the first locking component comprises a lock rod for locking the rotating part and a first reset part which provides a biasing force for the lock rod to move towards the rotating part when the lock rod moves, and the lock rod is rotatably arranged on the lock shell through a rotating shaft. The electric appliance door lock has the advantages of simple structure and low production cost.

Description

door lock for electric appliance

Technical Field

The invention relates to the technical field of door locks, in particular to an electric appliance door lock.

Background

A door lock is a device used to lock a door to prevent others from opening the door. Door locks are classified into a large number of categories and are used in various situations. Such as a full automatic washing machine, a door lock is used to lock a door cover of the washing machine, preventing laundry from being thrown out and water from being splashed.

A door lock of a washing machine in the prior art, such as chinese patent document CN107245845B, discloses a door lock of a washing machine, which includes a door hook, a lock case, a rotating member return elastic member, a lock catch, a lock matching structure and a lock catch unlocking structure, when the door is closed, the door hook is inserted into the lock case, the rotating member is driven by the door hook, the lock matching structure guides the lock catch to move from a lock catch return position to a lock catch locking position, and blocks on a path of rotation of the rotating member, so that the washing machine door is locked; after washing, the electromagnetic driving part drives the lock catch to continue moving towards the direction far away from the reset position of the lock catch through the lock catch unlocking structure, so that the lock catch is not blocked on a rotation path of the rotating part any more, the rotating part rotates under the action of the rotating part reset elastic part, the door hook is popped out from the lock shell, and the door of the washing machine is unlocked. In this patent document, the rotating member of the washing machine door lock and the corresponding locking engagement structure are relatively complicated and high in processing cost, so that the cost of the washing machine door lock is high.

Disclosure of Invention

Therefore, the invention provides the electric appliance door lock which is simple in structure, low in production cost and capable of automatically popping the door hook.

In order to solve the problems, the electric appliance door lock comprises a door hook, a lock shell, a rotating piece resetting piece and a first locking component, wherein the door hook is suitable for being installed on a door plate of an electric appliance; the lock shell is suitable for being installed on the electric appliance body and is provided with an insertion hole for inserting the door hook; the rotating piece is rotatably arranged in the lock shell through a connecting shaft, is provided with a combining part combined with the door hook and is provided with an initial position of the rotating piece and a locking position of the rotating piece combined with the door hook; the rotating part resetting piece is connected with the rotating part and used for elastically driving the rotating part to be reset to the initial position of the rotating part from the locking position of the rotating part; the first locking assembly comprises a lock rod used for locking the rotating part and a first reset part which provides a biasing force for the lock rod to move towards the rotating part when the lock rod moves, and the lock rod is rotatably arranged on the lock shell through a rotating shaft; when closing the door, the door colludes the promotion rotate the piece by rotate an initial position to rotate a latched position and rotate, rotate the piece rotate the in-process with the locking lever butt promotes the locking lever removes rotate extremely when rotating a latched position, first reset a drive the locking lever to rotate the piece and remove, until the locking lever with rotate a butt, the locking rotate the piece.

The rotation piece has the cam butt face, the locking lever have during dwang initial position with the first butt face of cam butt face contact, with during dwang latched position with the second butt face of cam butt face butt, the second butt face with during the butt of cam butt face, the locking lever locking the dwang.

the rotating part is provided with a cam part connected with the combining part, the cam part is provided with a cam abutting surface, and when the rotating rod is at the initial position, the cam abutting surface is a slope surface perpendicular to the insertion hole.

Have the orientation on the locking lever the projected right trapezoid shape's of dwang butt end, the butt end is in the planar projection in jack place is right trapezoid, the orientation of butt end the inboard lateral wall of locking lever is first butt face, keeping away from of butt end the side of jack is the orientation rotate the second butt face of piece slope.

the first reset piece is arranged between the side wall of the abutting end, which is far away from the rotating rod, and the lock shell.

still including receiving the stopper that peach heart slider control removed, the one end of keeping away from the butt end of locking lever is provided with the mounting groove, the locking lever with rotate piece latched position during the rotation piece butt, the stopper can stretch into in the mounting groove, in order to prevent the removal of locking lever.

Still including stretching into the outage ejector pin of in order to switch on electrical apparatus lock power in the electrical box, the outage ejector pin with stopper parallel arrangement can stretch into and shift out the mounting groove when rotating a latched position, the outage ejector pin shifts out completely the mounting groove switches on the power of electrical box.

and the side wall of the mounting groove, which faces the power-off ejector rod and moves out, is provided with an ejector rod moving-out slope surface suitable for the power-off ejector rod to move out.

The rotating shaft is arranged between the mounting groove and the abutting end.

Still include the second locking subassembly, the second locking subassembly include with the locking piece of the joint portion butt of rotating the piece, and be used for the drive the second that the locking piece resumes initial condition resets, rotate the piece by rotate an initial position and remove when rotating a locking position, rotate the piece drive the locking piece overcomes the biasing force that the second resets removes, rotate the piece and be located when rotating a locking position, the second resets the drive the locking piece orientation rotate the piece and remove and with rotate the piece butt, lock rotate the piece.

be equipped with on the first side wall of the joint portion of rotating the piece and be on a parallel with the lateral wall butt face of connecting axle, have on the locking piece with the contact of lateral wall butt face, confession the shifting chute that the lateral wall butt face removed, the shifting chute be close to the second resets the groove lateral wall of piece by being close to one side of jack is widened gradually to the opposite side, rotate the piece by rotate an initial position to when rotating a latched position and removing, the lateral wall butt face by being close to of shifting chute one side of jack is moved to the opposite side, and promotes the locking piece to the second resets a direction and removes.

the top of groove lateral wall is equipped with the orientation the cell wall butt face of rotating the piece, rotate the piece and be located when rotating a latched position, the second resets a drive the locking piece orientation rotate the piece and remove, cell wall butt face with lateral wall butt face butt.

first locking Assembly still is including locating be used for installing in the lock shell the first slider of locking piece, the one end of first piece that resets with first slider butt, the other end with lock shell butt.

the lateral wall that is located of locking piece the connecting axle axis direction can with the lateral wall butt of first slider, keeping away from of locking piece the one end of rotating the piece with be provided with locking piece reset piece between the first slider, locking piece reset piece does the locking piece provides the orientation the biasing force of rotating the piece.

The axis of the locking block resetting piece is coincided with the center line of the locking block.

The lower extreme that keeps away from of locking piece rotate with first slider rotates and is connected, the fixed axis of locking piece is on a parallel with the connection axis of rotating the piece, the one end of locking piece that resets with the upper end of locking piece is connected.

The unlocking assembly is driven by the peach-heart slider to move, and the unlocking assembly is connected with the first slider and drives the first slider to overcome the biasing force of the second reset piece to move.

The unlocking assembly comprises an unlocking slide block, a locking mechanism and a locking mechanism, wherein the unlocking slide block is connected with the peach heart slide block and is driven by the peach heart slide block to move; the unlocking key is movably arranged in the unlocking slide block, and a slide block through hole suitable for the unlocking key to be inserted is formed in the first slide block; an unlocking biasing member mounted between the unlocking slider and the unlocking key for providing the unlocking key with a biasing force away from the unlocking slider.

the side wall of the slider through hole, which is far away from the locking block, is provided with an inclined section facing the moving-out direction of the unlocking assembly, one side of the inclined section, which faces the unlocking assembly, is provided with an inclined surface, and the unlocking key is moved out of the slider through hole from the inclined surface.

The technical scheme of the invention has the following advantages:

1. The electric appliance door lock comprises a door hook, a lock shell, a rotating piece resetting piece and a first locking component, wherein the rotating piece and the lock rod are simple in structure and low in production cost, so that the overall production cost of the electric appliance door lock is reduced; and the lock rod is rotatably arranged on the lock shell through the rotating shaft, and the position of the rotating shaft can be adjusted to correspondingly adjust the moving space of the lock rod, which is far away from the other end of the rotating part, so that the lock rod is matched with the using space in the electric appliance door lock.

2. according to the electric appliance door lock, after an electric appliance finishes working, the coil in the electric box is electrified to drive the peach-heart sliding block to move towards the coil, the peach-heart sliding block drives the limiting block to retract, the limiting block does not lock the lock rod any more, and the lock rod releases locking of a rotating piece. The peach-heart slider drives the unblock slider and unlocks the key and removes toward the coil direction simultaneously, and the unblock key drives first slider and locking piece and overcomes the second and resets a removal, the locking piece with rotate the piece and break away from the butt, the locking piece no longer locks and rotates the piece, rotates the piece and receives the biasing force that rotates the piece that resets to rotate an initial position rotates, rotates a piece and promotes the door and collude the removal. The rotating piece rotates to an initial position of the rotating piece under the action of the rotating piece resetting piece, the door hook is completely separated from the door lock, and the automatic unlocking function of the door lock is realized. When the electric appliance door lock is used for a washing machine, the door panel can be automatically opened after the washing machine finishes washing, so that water vapor and heat in a washing machine barrel can be dissipated, and when clothes cannot be taken out in time, peculiar smell of the clothes in the washing machine cannot be generated.

Simultaneously, collude when breaking away from the lock completely at the door, rotate the piece and be located and rotate an initial position, at this moment, the outage ejector pin stretches into in the mounting groove, electric box outage, electric box inner part stop work can reduce the loss of electric box inner part, prolongs electric box's life.

3. According to the electric appliance door lock, the locking structures between the rotating piece and the locking block and between the rotating piece and the locking rod are arranged on the outer walls among the rotating piece, the locking block and the locking rod and are slopes which are convenient to machine, so that the rotating piece, the locking block and the locking rod are simpler to machine, the surface-to-surface contact is more stable during locking, and the structure of the electric appliance door lock is more stable.

4. According to the electric appliance door lock, the locking block resetting piece is arranged, so that the door hook can be pulled when the rotating piece is not locked, the rotating piece is pulled by the door hook to rotate, the rotating piece can push the locking block to overcome the movement of the locking block resetting piece, the locking block is further separated from the locking of the rotating piece, and the door hook can be pulled out of the door lock; and secondly, when the rotating piece is positioned at the locking position of the rotating piece, the biasing force of the locking block resetting piece can compress the rotating piece to provide locking force for the rotating piece, so that attraction force is generated when the door hook is inserted into the electric appliance door lock.

Drawings

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

FIG. 1 is a schematic structural view of a bottom view of an appliance door lock of the present invention;

FIG. 2 is a schematic structural view of an exploded view of the appliance door lock of the present invention;

FIG. 3 is a schematic top view of the door of the present invention with the seat cover removed;

FIG. 4 is a schematic structural diagram of a perspective view of portion A of FIG. 3;

FIG. 5 is a schematic top view of the electrical box with the cover removed and the door open in accordance with the present invention;

FIG. 6 is a schematic perspective view of portion B of FIG. 5;

FIG. 7 is a first schematic structural view illustrating a state of motion between the unlocking assembly and the second locking structure of the present invention;

FIG. 8 is a second structural schematic view of the state of motion between the unlocking assembly and the second locking structure of the present invention;

FIG. 9 is a third schematic structural view illustrating the state of motion between the unlocking assembly and the second locking structure of the present invention;

FIG. 10 is a schematic perspective view of portion C of FIG. 5;

fig. 11 is a schematic structural view illustrating a state where the rotating member is coupled to the first locking member and the second locking member in the door opened state according to the present invention;

FIG. 12 is a schematic top view of the present invention with the seat cover removed in a closed position;

FIG. 13 is a second schematic structural view of a portion D of FIG. 12;

FIG. 14 is a first schematic view of the rotating member in a closed door state and the second locking structure in a moving state;

FIG. 15 is a second schematic structural view illustrating the movement between the rotating member and the second locking structure in the closed door state;

FIG. 16 is a third schematic view illustrating the movement between the rotating member and the second locking structure in the closed door state;

FIG. 17 is a fourth schematic structural view illustrating the movement between the rotating member and the second locking structure in the closed door state;

FIG. 18 is a fifth schematic structural view illustrating the movement between the rotating member and the second locking structure in the closed door state;

FIG. 19 is a schematic top view of the electrical box with the seat cover and the electrical box removed in a closed door condition in accordance with the present invention; (ii) a

FIG. 20 is a schematic perspective view of section E of FIG. 19;

FIG. 21 is a schematic perspective view of portion F of FIG. 19;

FIG. 22 is a schematic structural view illustrating a state where the rotating member is coupled to the first locking member and the second locking member in a door-closed state according to the present invention;

FIG. 23 is a schematic top view of the door locked with the seat cover and the electrical box cover removed in accordance with the present invention;

FIG. 24 is a schematic top view of the door locked with the cover and electrical box removed in accordance with the present invention;

FIG. 25 is a schematic perspective view of portion G of FIG. 24;

FIG. 26 is a first view of the first state of movement between the tumblers and the second locking configuration in an unlocked state of the appliance door lock of the present invention;

FIG. 27 is a second view of the second state of the movement between the tumbler and the second locking structure in the unlocked state of the appliance door lock in accordance with the present invention;

FIG. 28 is a view showing the state of the movement between the rotating member and the second locking structure in the unlocking state of the door lock of the electric appliance in accordance with the third embodiment of the present invention

FIG. 29 is a fourth state view of the movement between the tumblers and the second locking structure in the unlocked state of the appliance door lock in accordance with the present invention;

FIG. 30 is a first schematic view of a moving state of a rotating member and a locking piece of the electric appliance door lock according to an embodiment of the present invention;

FIG. 31 is a second schematic structural view illustrating a moving state of a rotating member and a locking piece of the electric appliance door lock according to an embodiment of the present invention;

FIG. 32 is a third schematic view of the structure of the rotating member and the locking piece of the electric appliance door lock in a moving state according to one embodiment of the present invention;

FIG. 33 is a fourth schematic structural view illustrating a moving state of a rotating member and a locking piece of the electric appliance door lock according to an embodiment of the present invention;

FIG. 34 is a first schematic view of a moving state structure of a rotating member and a locking piece of an electric appliance door lock according to another embodiment of the present invention;

FIG. 35 is a second schematic structural view illustrating a moving state of a rotor and a lock piece of the electric appliance door lock according to another embodiment of the present invention;

FIG. 36 is a third schematic view of the structure of the rotating member and the locking piece of the door lock for an electric appliance according to another embodiment of the present invention in a moving state;

FIG. 37 is a fourth schematic view of the structure of the rotating member and the locking piece of the door lock for electric appliances according to another embodiment of the present invention in a moving state;

FIG. 38 is a schematic structural view of an unlocking structure of the electric appliance door lock of the present invention;

Description of reference numerals:

1-door hook; 2-a jack; 3-a rotating member; 4-a rotating member return member; 5-an electrical box; 6-a base; 7-seat cover; 8-a binding moiety; 9-a cam portion; 10-a first side wall; 11-a second side wall; 12-a locking piece; 13-a first slider; 14-a first restoring member; 15-a lock block reset piece; 16-a cam abutment surface; 17-a first abutment surface; 18-a second abutment surface; 19-an abutting end; 20-heart slide block; 21-unlocking the slide block; 22-an unlocking key; 23-unlocking the biasing member; 24-a slider through hole; 25-an inclined section; 26-inclined plane; 27-a locking bar; 28-a second restoring member; 29-mounting grooves; 30-a sidewall abutment face; 31-a limiting block; 32-power off mandril; 34-a fixed shaft; 35-a handle; 36-a connecting shaft; 38-a moving slot; 39-cell sidewalls; 40-groove wall abutting surface.

Detailed Description

the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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 addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The electric appliance door lock of the present embodiment, as shown in fig. 1 to 38, includes a door hook 1, a lock housing, a rotating member 3, a rotating member reset member 4, a first locking component, a second locking component, an electric box 5, an electric component located in the electric box 5, and a power connection structure.

The door hook 1 is suitable for being installed on a door panel of an electric appliance.

the lock case is adapted to be mounted on the body of the electrical appliance and has a receptacle 2 into which the door hook 1 is inserted. The rotating part 3, the rotating part resetting part 4, the first locking component, the second locking component, the electrical box 5 and the power supply connection structure are all arranged in the lock shell. In this embodiment, the lock case includes a base 6 and a seat cover 7, the electrical box 5 is located at one end of the base 6, the seat cover 7 is installed above the other end of the base 6, and the rotary member 3, the rotary member resetting member 4, a part of the first locking assembly and a part of the second locking assembly are located in an installation space surrounded by the seat cover 7 and the lock case.

The rotating piece 3 is rotatably mounted on the seat cover 7 through a connecting shaft 36, the rotating piece 3 comprises a combining part 8 combined with the door hook 1 and a cam-shaped cam part 9 connected with the combining part 8, the combining part 8 is of a U-shaped structure, the side wall far away from the jack 2 is a first side wall 10, and the side wall close to the jack 2 is a second side wall 11. The rotating piece 3 is provided with an initial position of the rotating piece and a locking position of the rotating piece combined with the door hook 1.

The rotating part resetting part 4 is connected with the rotating part 3 and used for elastically driving the rotating part 3 to enable the rotating part to be reset to the initial position of the rotating part from the locking position of the rotating part. In this embodiment, the rotating member returning member 4 is a rotating member torsion spring.

First locking subassembly is including being used for locking rotate the locking lever 27 of piece 3, and be when locking lever 27 removes for locking lever 27 provides to rotate the first piece 14 that resets that piece 3 removed, locking lever 27 passes through the rotatable locating of axis of rotation on the lock shell, wherein the axis of rotation is located between the both ends of locking lever 27, locate promptly mounting groove 29 with between the butt end 19.

In this embodiment, the locking structure between the lock lever 27 and the rotating member 3 is: the rotating piece 3 is provided with a cam part 9 connected with the combining part 8, the cam part 9 is provided with the cam abutting surface 16, and when the rotating piece 3 is at the initial position of the rotating rod, the cam abutting surface 16 is a slope surface vertical to the jack 2.

have on the locking lever 27 towards the projected right trapezoid shape's of dwang butt end 19, butt end 19 is in the planar projection in jack 2 place is right trapezoid, butt end 19's orientation the inboard lateral wall of locking lever 27 is first butt face 17, the keeping away from of butt end 19 the side of jack 2 is for the orientation rotate the second butt face 18 of 3 slopes. When dwang initial position, first butt face 17 with cam butt face 16 contact when dwang latched position, second butt face 18 with cam butt face 16 butt, second butt face 18 with when cam butt face 16 butt, locking lever 27 locking the dwang.

In order to increase the force application effect of the first reset element 14, the first reset element 14 is arranged between the side wall of the abutment end 19 remote from the swivelling lever and the lock housing.

The electric appliance door lock in this embodiment has electrical control, and an electrical component for electrical control is provided in the electrical box 5, and the electrical box 5 is the prior art, and is not described again in this embodiment, wherein the electrical component includes the heart slider 20.

in this embodiment, in order to realize the locking to rotating piece 3, prevent that the electrical apparatus lock is automatic to be opened when electrical apparatus work, the electrical apparatus lock is still including receiving the stopper 31 that peach heart slider 20 control removed, the one end of keeping away from butt end 19 of locking lever 27 is provided with mounting groove 29, locking lever 27 with rotate piece locking position during the butt of rotating piece 3, stopper 31 can stretch into in the mounting groove 29, in order to stop locking lever 27's removal.

in this embodiment, the electric appliance door lock further comprises a power-off ejector rod 32 extending into the electric box 5 to connect a power supply of the electric appliance door lock, the power-off ejector rod 32 and the limiting block 31 are arranged in parallel and can extend into and move out of the mounting groove 29, and when the rotating member is in the locking position, the power-off ejector rod 32 is completely moved out of the mounting groove 29 and is connected with the power supply of the electric box 5; when the lock rod 27 abuts against the rotating member 3 which is not in the rotating member locking position, the power-off mandril 32 is not completely moved out of the mounting groove 29, and the electrical box 5 is not electrified. The side wall of the mounting groove 29, which moves out towards the power-off push rod 32, is provided with a push rod moving-out slope surface suitable for the power-off push rod 32 to move out, so that the power-off push rod 32 can move into and out of the mounting groove 29 conveniently. In this embodiment, only when the door hook 1 is completely combined with the rotating part 3, and the rotating part 3 is located at the rotating part locking position, the electric box 5 can be powered on, so that the damage caused by the fact that the door hook 1 is separated from the door lock in the working process of the electric appliance because the door hook 1 is not completely combined with the rotating part 3 can be prevented, and the door lock of the electric appliance is safer and more reliable.

The second locking assembly comprises a locking block 12 used for locking the rotating piece 3, a first sliding block 13 arranged in the base 6 and used for installing the locking block 12, and a first reset piece 14 which is used for restoring the first sliding block 13 to the initial position of the locking block 12 when the first sliding block 13 moves, wherein one end of the first reset piece 14 is abutted to the first sliding block 13, and the other end of the first reset piece is abutted to the base 6. The side wall of the lock block 12 located in the axial direction of the connecting shaft 36 can abut against the side wall of the first sliding block 13, a lock block reset piece 15 is arranged between one end of the lock block 12 far away from the rotating piece 3 and the first sliding block 13, the lock block reset piece 15 provides a biasing force towards the rotating piece 3 for the lock block 12, and in this embodiment, the axis of the lock block reset piece 15 coincides with the center line of the lock block 12. Rotate piece 3 by rotate an initial position and remove when rotating a latched position, rotate 3 drive the locking piece 12 drives first slider 13 overcomes the second resets 28's biasing force and removes rotate piece 3 and be located when rotating a latched position, the second resets 28 drive first slider 13 drives locking piece 12 orientation rotate piece 3 remove and with rotate 3 butt, lock rotate piece 3.

As an alternative embodiment, the lower end of the locking piece 12 far from the rotating piece 3 is rotatably connected to the first sliding block 13 through a fixed shaft 34, the fixed axis of the locking piece 12 is parallel to the connecting axis of the rotating piece 3, and one end of the locking piece resetting piece 15 is connected to the upper end of the locking piece 12.

the locking structure between the locking block 12 and the rotating piece 3 is as follows: be equipped with on the first lateral wall 10 of the joint portion 8 of rotating piece 3 and be on a parallel with the lateral wall butt face 30 of connecting axle 36, have on the locking piece 12 with the contact of lateral wall butt face 30, supply the shifting chute 38 that lateral wall butt face 30 removed, the shifting chute 38 be close to the second resets the groove lateral wall 39 of 28 by being close to one side of jack 2 widens gradually to the opposite side, rotate piece 3 by rotate the initial position to when rotating piece latched position and remove, lateral wall butt face 30 by the shifting chute 38 is close to one side of jack 2 moves to the opposite side, and promotes the locking piece 12 to the second resets 28 direction and removes. The top of groove lateral wall 39 is equipped with towards the cell wall butt face 40 of rotating piece 3, it is located to rotate piece 3 when rotating a latched position, the second piece 28 that resets drives locking piece 12 towards rotate piece 3 and remove, cell wall butt face 40 with lateral wall butt face 30 butt.

In order to realize the automatic unlocking of the electric appliance door lock, the electric appliance door lock further comprises an unlocking assembly driven by the heart sliding block 20 to act, the unlocking assembly is connected with the first sliding block 13, and the heart sliding block 20 drives the unlocking assembly to move so as to drive the first sliding block 13 to move by overcoming the biasing force of the second reset piece 28. The unlocking assembly comprises an unlocking slide block 21, an unlocking key 22 and an unlocking biasing member 23, wherein the unlocking slide block 21 is connected with the peach-heart slide block 20 and driven by the peach-heart slide block 20 to move; the unlocking key 22 is movably arranged in the unlocking slide block 21, and a slide block through hole 24 suitable for inserting the unlocking key 22 is formed in the first slide block 13; an unlocking biasing member 23 is installed between the unlocking slider 21 and the unlocking key 22, and provides the unlocking key 22 with a biasing force away from the unlocking slider 21. In order to facilitate the unlocking key 22 to move out of the slider through hole 24, a side wall of the slider through hole 24, which is far away from the locking block 12, is provided with an inclined section 25 facing the unlocking assembly moving-out direction, a side of the inclined section 25 facing the unlocking assembly is provided with an inclined surface 26, and the unlocking key 22 moves out of the slider through hole 24 from the inclined surface 26.

The working principle and the working process of the electric appliance door lock are as follows:

when closing the door, promote the door plant, collude 1 when getting into the electrical apparatus lock when the door on the door plant, the door colludes 1 top and moves a 3 upsets that rotate, rotates a 3 and is with the kinematic relationship of first locking Assembly: the cam abutting surface 16 of the cam part 9 contacts with the first abutting surface 17 of the abutting end 19 of the lock lever 27, and when the rotating member 3 rotates from the initial structure of the rotating member 3 to the rotating member locking position, the cam abutting surface 16 abuts against the first abutting surface 17 and pushes the lock lever 27 to rotate against the biasing force of the first resetting member 14; when the rotation piece 3 rotates to the rotation piece locking position, the cam abutting surface 16 is separated from the first abutting surface 17, the first reset piece 14 pushes the abutting end 19 of the lock rod 27 to move towards the rotation piece 3, the cam abutting surface 16 abuts against the second abutting surface 18, and the lock rod 27 locks the rotation piece 3. The motion relationship between the rotating part 3 and the second locking component is as follows: when the rotating piece 3 is at the initial position of the rotating piece, the side wall abutting surface 30 of the first side wall 10 on the rotating piece 3 is positioned at one end of the moving groove 38 of the locking block 12 close to the insertion hole 2; when the rotating member 3 rotates from the rotating member initial position to the rotating member locking position, the side wall abutment surface 30 moves upward along the moving groove 38, abuts against the groove side wall 39 and pushes the locking piece 12 to drive the first slide block 13 to move in the direction of the second resetting member 28 against the biasing force of the second resetting member 28; when the rotating part 3 moves to the rotating part locking position, the side wall abutting surface 30 moves out of the moving groove 38, the second resetting part 28 drives the first sliding block 13 to drive the locking block 12 to move towards the rotating part 3 until the groove side wall 39 moves to the position below the side wall abutting surface 30, the groove wall abutting surface 40 abuts against the side wall abutting surface 30, and the locking block 12 locks the rotating part 3. At the moment, the door plate of the washing machine is locked, but is not locked, and the door plate can still be pulled open.

The motion relationship between the door plate, the rotating part 3 and the first locking component is as follows: when the door on the door plate is hooked 1 pulling and rotated 3 upsets, it pushes locking lever 27 to overcome first piece 14 that resets and removes to rotate 3, and until door colludes 1 and breaks away from the lock completely, then first piece 14 that resets promotes locking lever 27 resumes to first butt surface 17 with the contact of cam butt surface 16 can lock the action next time. The motion relationship between the rotating part 3 and the second locking component is as follows: rotate the last lateral wall butt face 30 of piece 3 with lateral wall butt face 30, it rotates the promotion to rotate piece 3 the locking piece 12 overcomes the biasing force that the locking piece resets 15 moves or rotates to locking piece resets 15 direction, when lateral wall butt face 30 with lateral wall butt face 30 breaks away from, lateral wall butt face 30 is in the groove lateral wall 39 to jack 2 direction removes, until lateral wall butt face 30 moves to in the shifting chute 38, at this moment, locking piece resets 15 promotes the tank bottom of shifting chute 38 of locking piece 12 with lateral wall butt face 30 contacts, and door hook 1 breaks away from the lock completely, and the door plant is opened. At this time, the lock block 12 returns to the original position of the lock block 12 again under the biasing force of the lock block returning member 15, and the next locking operation can be performed.

the function of locking starts, rotates the piece 3 this moment and is located and rotates a latched position, and electric box 5 works, and peach heart slider 20 removes and drives stopper 31 protrusion electric box 5, and the locating part stretches into mounting groove 29 in, prevents the removal of locking lever 27 to the position of locking lever 27 rotates the unable upset of piece 3, and the washing machine door is locked this moment, can't open.

after the electric appliance finishes working, the coil in the electric box 5 is electrified to drive the peach-heart slide block 20 to move towards the coil direction, the peach-heart slide block 20 drives the limiting block 31 to be separated and extend into the electric box 5, the locking of the locking rod 27 is released, and then the locking of the rotating piece 3 is released. The heart slider 20 simultaneously drives the unlocking slider 21 and the unlocking key 22 to move towards the coil direction, and the unlocking key 22 drives the first slider 13 and the locking block 12 to move towards the coil direction. The groove wall abutment surface 40 of the lock block 12 is disengaged from the side wall abutment surface 30 of the rotation member 3, the rotation member 3 receives the biasing force of the torsion spring of the rotation member, and the rotation member 3 pushes the lock lever 27 to move. At this moment, rotate piece 3 and overturn to rotating an initial position, the door colludes 1 and breaks away from the lock completely, realizes the automatic unblock function of lock, simultaneously, the locking piece 12 resets 28 the second the biasing force with locking lever 27 is in the biasing force effect of first piece 14 that resets restore to with during the dwang initial position the relative position of dwang can carry out the action of locking next time.

In this embodiment, when the rotating member 3 is located at the rotating member locking position, that is, after the door hook 1 is completely combined with the rotating member 3, the power-off mandril 32 completely moves out of the through hole of the locking rod 27 and enters the electrical box 5 to drive the power supply in the electrical box 5 to be switched on, so that the electrical appliance door lock is powered on. When the rotating piece 3 is located at the initial position of the rotating piece, the power-off mandril 32 is located in the mounting groove 29, the power supply in the electrical box 5 is disconnected, and the power-off state in the electrical appliance door lock is realized.

When the washing machine works, the service life of the door lock is over or the washing machine is powered off suddenly, the door of the washing machine cannot be opened, the door lock handle 35 can be pulled to carry out emergency unlocking, and the handle 35 is connected with the peach-heart slide block 20 in the electric box 5 and can drive the peach-heart slide block 20 to act.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. An electrical appliance door lock, comprising:

The door hook (1) is suitable for being installed on a door plate of an electric appliance;

The lock shell is suitable for being installed on the electric appliance body and is provided with an insertion hole (2) for inserting the door hook (1);

The rotating piece (3) is rotatably arranged in the lock shell through a connecting shaft (36), is provided with a combining part (8) combined with the door hook (1) and has an initial position of the rotating piece and a locking position of the rotating piece combined with the door hook (1);

The rotating part resetting piece (4) is connected with the rotating part (3) and is used for elastically driving the rotating part (3) to be reset to the initial position of the rotating part from the locking position of the rotating part;

The first locking assembly comprises a locking rod (27) used for locking the rotating piece (3) and a first resetting piece (14) used for providing a biasing force for the locking rod (27) to move towards the rotating piece (3) when the locking rod (27) moves, and the locking rod (27) is rotatably arranged on the lock shell through a rotating shaft;

When closing the door, the door colludes (1) and promotes rotate piece (3) by rotate piece initial position to rotate piece latched position and rotate, rotate piece (3) rotation in-process with locking lever (27) butt promotes locking lever (27) remove rotate piece (3) rotate extremely when rotating piece latched position, first reset piece (14) drive locking lever (27) to rotate piece (3) and remove, until locking lever (27) with rotate piece (3) butt, lock rotate piece (3).

2. the electric appliance door lock according to claim 1, wherein the rotating member (3) has a cam abutting surface (16), the lock lever (27) has a first abutting surface (17) which contacts with the cam abutting surface (16) when the rotating lever is at the initial position, and a second abutting surface (18) which abuts with the cam abutting surface (16) when the rotating lever is at the locking position, and when the second abutting surface (18) abuts with the cam abutting surface (16), the lock lever (27) locks the rotating lever.

3. The appliance door lock according to claim 2, characterized in that the turning piece (3) has a cam portion (9) connected to the engaging portion (8), the cam portion (9) being provided with the cam abutment surface (16), the cam abutment surface (16) being a sloping surface perpendicular to the receptacle (2) in the initial position of the turning lever.

4. The electric appliance door lock according to claim 2 or 3, wherein the lock rod (27) is provided with a right trapezoid-shaped abutting end (19) protruding towards the rotating rod, the projection of the abutting end (19) on the plane where the jack (2) is located is a right trapezoid, the side wall of the abutting end (19) facing the inner side of the lock rod (27) is a first abutting surface (17), and the side surface of the abutting end (19) far away from the jack (2) is a second abutting surface (18) facing the rotating part (3) and inclined.

5. Electrical appliance door lock according to claim 4, characterized in that the first reset piece (14) is arranged between a side wall of the abutment end (19) remote from the swivelling lever and the lock housing.

6. The electric appliance door lock according to any one of claims 1 to 5, further comprising a limiting block (31) controlled by the peach-heart slider (20) to move, wherein one end of the lock rod (27) far away from the abutting end (19) is provided with a mounting groove (29), and when the lock rod (27) abuts against the rotating piece (3) of the rotating piece locking position, the limiting block (31) can extend into the mounting groove (29) to prevent the lock rod (27) from moving.

7. the electric appliance door lock according to claim 6, characterized by further comprising a power-off push rod (32) extending into the electric box (5) to connect the electric appliance door lock, wherein the power-off push rod (32) and the limiting block (31) are arranged in parallel and can extend into and move out of the mounting groove (29), and when the rotating member is in the locking position, the power-off push rod (32) is completely moved out of the mounting groove (29) and connects the electric box (5) with the power.

8. the appliance door lock according to claim 7, characterized in that the side wall of the mounting groove (29) moving out towards the power-off ejector pin (32) is provided with an ejector pin moving-out slope suitable for the power-off ejector pin (32) to move out.

9. the appliance door lock according to any of claims 6 to 8, wherein the rotation shaft is provided between the mounting slot (29) and the abutment end (19).

10. the electric appliance door lock according to any one of claims 1 to 9, further comprising a second locking assembly including a locking piece (12) abutting against the engaging portion (8) of the rotation piece (3), and a second reset piece (28) for driving the locking piece (12) to return to an initial state, wherein the rotation piece (3) drives the locking piece (12) to move against a biasing force of the second reset piece (28) when the rotation piece (3) moves from the rotation piece initial position to the rotation piece locking position, and the second reset piece (28) drives the locking piece (12) to move toward the rotation piece (3) and abut against the rotation piece (3) when the rotation piece (3) is in the rotation piece locking position, to lock the rotation piece (3).

11. electrical appliance door lock according to claim 10, characterized in that the first side wall (10) of the coupling part (8) of the turning piece (3) is provided with a side wall abutment surface (30) parallel to the connecting shaft (36), the lock block (12) is provided with a moving groove (38) which is in contact with the side wall abutting surface (30) and is used for moving the side wall abutting surface (30), the side wall (39) of the moving slot (38) close to the second reset piece (28) is gradually widened from one side close to the jack (2) to the other side, when the rotating piece (3) moves from the initial position of the rotating piece to the locking position of the rotating piece, the side wall abutting surface (30) moves from one side of the moving groove (38) close to the insertion hole (2) to the other side, and pushes the locking block (12) to move towards the direction of the second resetting piece (28).

12. The appliance door lock according to claim 11, wherein the top end of the slot side wall (39) is provided with a slot wall abutment surface (40) facing the rotation member (3), the second reset member (28) drives the lock block (12) to move towards the rotation member (3) when the rotation member (3) is located at the rotation member locking position, and the slot wall abutment surface (40) abuts against the side wall abutment surface (30).

13. the appliance door lock according to claims 10-12, wherein the first locking assembly further comprises a first slider (13) disposed inside the lock housing for mounting the lock block (12), and the first reset member (14) has one end abutting against the first slider (13) and the other end abutting against the lock housing.

14. The electric appliance door lock according to claim 13, wherein a side wall of the lock block (12) in the axial direction of the connecting shaft (36) can abut against a side wall of the first slider (13), a lock block reset member (15) is arranged between one end of the lock block (12) far away from the rotating member (3) and the first slider (13), and the lock block reset member (15) provides the lock block (12) with a biasing force towards the rotating member (3).

15. the appliance door lock according to claim 14, characterized in that the axis of the lock block reset (15) coincides with the center line of the lock block (12).

16. The electric appliance door lock according to claim 14, characterized in that the lower end of the lock block (12) remote from the turning piece (3) is rotatably connected with the first slider (13), the fixed axis of the lock block (12) is parallel to the connection axis of the turning piece (3), and one end of the lock block reset piece (15) is connected with the upper end of the lock block (12).

17. the electric appliance door lock according to any one of claims 13 to 16, further comprising an unlocking assembly driven by a heart slider (20), wherein the unlocking assembly is connected to the first slider (13), and the heart slider (20) drives the unlocking assembly to move so as to drive the first slider (13) to move against the biasing force of the second reset member (28).

18. the appliance door lock of claim 17, wherein the unlocking assembly includes,

The unlocking slide block (21) is connected with the peach-heart slide block (20) and is driven by the peach-heart slide block (20) to move;

the unlocking key (22) is movably arranged in the unlocking slide block (21), and a slide block through hole (24) suitable for the unlocking key (22) to be inserted is formed in the first slide block (13);

An unlocking biasing member (23) mounted between the unlocking slider (21) and the unlocking key (22) for providing the unlocking key (22) with a biasing force away from the unlocking slider (21).

19. the appliance door lock according to claim 18, characterized in that the side wall of the slider through hole (24) facing away from the locking piece (12) has an inclined section (25) facing in the direction of removal of the unlocking assembly, the side of the inclined section (25) facing the unlocking assembly has an inclined surface (26), and the unlocking key (22) is moved out of the slider through hole (24) from the inclined surface (26).