CN110565329B

CN110565329B - Door lock for electric appliance

Info

Publication number: CN110565329B
Application number: CN201910873434.5A
Authority: CN
Inventors: 王立孟
Original assignee: Wenzhou Tianjian Electric Co ltd
Current assignee: Wenzhou Tianjian Electric Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2021-05-28
Anticipated expiration: 2039-09-16
Also published as: CN110565329A

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, a first locking component and a power supply connection structure, 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 plugging 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 locking block used for locking the rotating piece and a first resetting piece used for restoring the locking block to the original position of the locking block when the locking block moves; the power supply connection structure is in transmission connection with the rotating piece. The electric appliance door lock has the advantages of simple structure, low production cost and capability of automatically popping and opening the door hook.

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 locking engagement structure and a lock catch unlocking structure, wherein when the door is closed, the door hook is inserted into the lock case, the rotating member is driven by the door hook, the locking engagement structure guides the lock catch to move from a lock catch return position to a lock catch locking position, and the lock catch is blocked 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 rotating 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 ejected out of the lock shell, and the washing machine door is unlocked. In this patent document, the structure of the rotating part and the latch of the door lock of the washing machine is relatively complicated, and the processing cost is high, so that the cost of the door lock of the washing machine 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, a first locking component and a power supply connection structure, 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 an inserting 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 after being 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 component comprises a locking block used for locking the rotating piece and a first resetting piece used for restoring the locking block to the initial position of the locking block when the locking block moves; the power supply connection structure is in transmission connection with the rotating piece; when the door is closed, the door hook pushes the rotating piece to rotate from the initial position of the rotating piece to the locking position of the rotating piece, the rotating piece is abutted against the locking block in the rotating process to push the locking block to move, when the rotating piece rotates to the locking position of the rotating piece, the first resetting piece drives the locking block to reset to the initial position of the locking block, and the locking block is clamped with the rotating piece after being reset to the initial position of the locking block to lock the rotating piece; meanwhile, the rotating piece drives the power connection structure to act, so that the power connection structure drives the power in the electric box to be connected.

The one end of rotating the piece of keeping away from grafting portion is equipped with rotates a butt portion, be equipped with on the locking piece with rotate the locking piece sticking portion of a butt portion butt, rotate the piece by rotate an initial position to when rotating a latched position and rotating, rotate a butt portion and promote locking piece sticking portion removes and drives the locking piece overcomes the biasing force of first piece that resets removes, rotate the piece and be located when rotating a locking position, the locking piece receives the biasing force of first piece that resets makes locking piece sticking portion with rotate a butt portion butt, the prevention rotate the piece and resume to rotate an initial position.

The rotating part abutting part is a U-shaped bulge arranged at one end, far away from the inserting part, of the rotating part, a rotating space for the U-shaped bulge to rotate is formed in the locking block, and the side wall, located on one side of the connecting shaft in the axial direction, of the rotating space is the locking part of the locking block.

The upper end of the locking piece locking part is provided with a locking piece locking surface facing the rotating piece.

One end of the locking piece locking part facing the U-shaped protrusion is provided with a V-shaped locking piece locking end with the tip facing the U-shaped protrusion.

First locking component still 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 axis of rotation of locking piece is on a parallel with the axis of connection that rotates 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 sliding block to move, and the first sliding block is driven by the peach-heart sliding block to move so as to overcome the biasing force of the first reset piece.

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 driven by the peach heart slide block to move; the unlocking key is movably arranged in the unlocking sliding block, and a sliding block through hole suitable for the unlocking key to be inserted is formed in the first sliding 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 moves out of the slider through hole from the inclined surface.

The locking mechanism comprises a first locking assembly and a second locking assembly, wherein the first locking assembly comprises a locking rod which is abutted against the insertion part and prevents the insertion part from rotating, and a first reset piece which drives the locking rod to move towards the rotating piece; the rotation piece by rotate an initial position to when rotating a latched position and rotating, promote the locking lever overcomes the biasing force of second piece that resets moves rotate the rotation piece is located when rotating a latched position, the second piece that resets promotes the locking lever orientation rotate the piece and remove, the butt grafting portion, in order to lock the dwang.

The side wall of the insertion part facing the locking rod is provided with an insertion part locking surface, and when the rotating part is positioned at the rotating part locking position, the insertion part locking surface faces the insertion hole; the upper end of the locking rod is provided with a locking surface of the locking rod which is matched with the locking surface of the insertion part and is arranged obliquely upwards.

Still include the quilt of being connected with the peach heart slider the stopper that the peach heart slider control removed, the locking lever with when rotating the piece butt of rotating a locked position, the locking lever takes away the route that the stopper stretched into, the stopper stretches out the back and prevents the removal of locking lever.

The power supply connection structure comprises a power-off ejector rod capable of extending out of the electrical box, a locking rod through hole for the power-off ejector rod to insert is formed in the locking rod, and an ejector rod shifting-out slope suitable for the power-off ejector rod to shift out is arranged on the side wall, facing the power-off ejector rod, of the locking rod through hole.

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, a first locking component and a power supply connection structure, wherein the rotating piece and the locking piece are simple in structure and low in production cost, so that the overall production cost of the electric appliance door lock is reduced; simultaneously, collude at the door and insert when in the lock shell, the power switch-on structure switches on the power in the electric box for the lock power switch-on, that is to say, when the door colludes and does not insert when targetting in place, the power in the electric box can not be put through to the power switch-on structure, makes the lock power be the off-state, and at this moment, the electricity ware can not normally work, can effectively prevent the harm that the electrical apparatus work caused when the door plant does not close, makes the safe and reliable more of electricity ware 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 slide block to move towards the coil, the peach-heart slide block drives the limiting block to retract, the limiting block does not lock the locking rod any more, and the locking 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 first piece that resets and removes, the locking piece with rotate the piece and take off the butt, and the piece is no longer locked and is rotated to the locking piece initial position rotates, rotates the piece and promotes the locking lever removal to the biasing force that rotates the piece that resets. The rotating piece is turned to the 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.

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 structural view of a first embodiment of a first locking structure of the present invention;

FIG. 4 is a schematic structural view in cross-section of a second embodiment of the first locking structure of the present invention;

FIG. 5 is a structural schematic diagram in cross-section of a second embodiment of the first locking structure of the present invention with the locking block in a displaced state;

FIG. 6 is a schematic structural view of a cross-sectional view of the unlocking assembly of the present invention;

FIG. 7 is a schematic structural view of a perspective view of the unlocking assembly of the present invention after being connected to the heart block;

FIG. 8 is a first schematic structural view illustrating a movement state between the unlocking assembly and the first locking structure according to the present invention;

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

FIG. 10 is a third schematic structural view of the state of motion between the unlocking assembly and the first locking structure of the present invention;

FIG. 11 is a first perspective view of portion A of FIG. 9;

FIG. 12 is a second perspective view of portion A of FIG. 9;

FIG. 13 is a third schematic structural view of the portion A in FIG. 9;

FIG. 14 is a schematic top view of the electrical apparatus door lock of the present invention with the gas box and the seat cover removed in the open position;

FIG. 15 is a schematic perspective view of portion B of FIG. 14;

FIG. 16 is a schematic perspective view of portion C of FIG. 14;

FIG. 17 is a schematic top view of the de-energizing gas box and seat cover of the electrical apparatus door of the present invention in a closed position;

FIG. 18 is a schematic perspective view of portion D of FIG. 17;

FIG. 19 is a first schematic structural diagram of a top view of the electrical box and the seat cover removed in the unlocked state of the sliding door when the electrical door of the electrical appliance is unlocked;

fig. 20 is a second schematic structural diagram of a top view of the electrical box and the seat cover removed in the unlocked state of the sliding door unlocked when the door of the electrical appliance is not closed;

fig. 21 is a third schematic structural diagram of a top view of the electrical box and the seat cover removed in the unlocked state of the sliding door unlocked when the door of the electrical appliance is not closed;

FIG. 22 is a schematic perspective view of section E of FIG. 19;

FIG. 23 is a first schematic structural diagram illustrating a top view of the electrical box and the seat cover removed in an unlocked position of the sliding door without locking the door according to another embodiment of the door lock of the electrical appliance of the present invention;

fig. 24 is a second schematic structural diagram of a top view of the electrical box and the seat cover removed in an unlocked state of the sliding door without locking the door according to another embodiment of the electrical door lock of the present invention;

fig. 25 is a third schematic structural diagram of a top view of the electrical box and the seat cover removed in an unlocked state of the sliding door without locking the door according to another embodiment of the electrical 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 plug-in part; 9-a cam portion; 10-a first side wall; 11-a second side wall; 12-a locking piece; 13-a first slide; 14-a first restoring member; 15-a lock block reset piece; 16-a rotor abutment; 17-a lock block locking portion; 18-locking block locking surface; 19-locking end of lock block; 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 reduction; 29-mating part locking surface; 30-locking bar locking face; 31-a limiting block; 32-power off mandril; 33-locking lever through hole; 35-a handle; 36-a connecting shaft; 37-axis of rotation.

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 only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments of the present invention without any creative effort, belong to 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", and the like 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 specific orientation, be constructed and operated in a specific 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 stated 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 related to 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 25, includes a door hook 1, a lock housing, a rotating member 3, a rotating member reset member 4, a first locking assembly, a second locking assembly, 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 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 rotating member 3, the rotating member returning 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.

As shown in fig. 6 and 16, the rotating member 3 is rotatably mounted in the base 6 through a connecting shaft 36, the rotating member 3 includes an insertion part 8 combined with the door hook 1, and a cam-shaped cam part 9 connected to the insertion part 8, the insertion part 8 is of a U-shaped structure, and the length of the first side wall 10 far away from the insertion hole 2 in the direction parallel to the connecting shaft 36 is greater than the length of the second side wall 11 near the insertion hole 2. The rotating piece 3 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 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.

As shown in fig. 3, the first locking component includes a lock block 12 for locking the rotating member 3, a first slider 13 disposed in the base 6 for mounting the lock block 12, and a first resetting member 14 for providing a return to an original position of the lock block for the first slider 13 when the first slider 13 moves, wherein one end of the first resetting member 14 abuts against the first slider 13, and the other end abuts against the base 6. The side wall of the lock block 12 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, which is far away from the rotating piece 3, and the first sliding block 13, and the lock block reset piece 15 provides a biasing force towards the rotating piece 3 for the lock block 12. The axis of the locking piece resetting piece 15 is coincident with the central line of the locking piece 12.

As an alternative embodiment, as shown in fig. 4 and 5, the lower end of the locking piece 12 far from the rotating member 3 is rotatably connected to the first slider 13 through a rotating shaft 37, the rotating shaft line of the locking piece 12 is parallel to the connecting shaft line of the rotating member 3, and one end of the locking piece resetting member 15 is connected to the upper end of the locking piece 12.

In this embodiment, as shown in fig. 15, 16, 20 to 23, the locking engagement structure between the first locking component and the rotating member 3 is: the end of the rotating part 3 far away from the inserting part 8 is provided with a rotating part abutting part 16, the rotating part abutting part 16 is a U-shaped bulge arranged at the end of the rotating part 3 far away from the inserting part 8, the locking part 12 is provided with a rotating space for the U-shaped bulge to rotate, the side wall of the rotating space positioned at one side of the connecting shaft 36 in the axial direction is the locking part 17, the locking part 17 abuts against the rotating part abutting part 16, and the upper end of the locking part 17 is provided with a locking part locking surface 18 facing the rotating part 3. Of course, the rotating member 3 abutting portion 16 functions to abut against the locking member locking portion 17 to push the movement of the locking member 12 and abut against the locking member locking surface 18 to lock the position of the rotating member 3, and therefore, the shape of the abutting portion 16 can be set according to the use requirement, for example, the abutting portion 16 is a protrusion which protrudes from the cam portion 9 and has a triangular, trapezoidal, four-sided row cross section perpendicular to the connecting shaft, and the like. One end of the lock piece locking part 17 facing the U-shaped protrusion is provided with a V-shaped lock piece locking end 19 with the tip facing the U-shaped protrusion. When the rotating piece 3 rotates from the initial position of the rotating piece to the locking position of the rotating piece, the rotating piece abutting part 16 pushes the locking piece locking part 17 to move so as to drive the first sliding block 13 to move against the biasing force of the first resetting piece 14, and when the rotating piece 3 is located at the locking position of the rotating piece, the first sliding block 13 is subjected to the biasing force of the first resetting piece 14 so as to enable the locking piece locking part 17 to abut against the rotating piece abutting part 16, so that the rotating piece 3 is prevented from returning to the initial position of the rotating piece. Rotate piece 3 by rotate a latched position to when rotating an initial position and rotating, rotate piece butt portion 16 and upwards rotate, promote lock piece locking end 19 moves backward, and then drives lock piece 12 overcomes lock piece reset 15 and moves backward, until, rotate piece butt portion 16 with lock piece 12 breaks away from the butt, rotate 3 unblocks.

As an alternative embodiment, as shown in fig. 24-25, when the rotor 3 rotates from the rotor locking position to the rotor initial position, the rotor abutting portion 16 rotates upward, pushing the lock piece locking end 19 to rotate upward, and further driving the lock piece 12 to rotate backward against the lock piece resetting member 15, until the rotor abutting portion 16 is disengaged from the lock piece 12, and the rotor 3 is unlocked.

The electric appliance door lock in this embodiment has electrical control, and the electric component for electrical control is located in electric box 5, and electric box 5 is prior art, and no longer repeated in this embodiment, wherein, the electric component includes peach heart slider 20.

In this embodiment, as shown in fig. 7 and 8, the unlocking device further includes an unlocking assembly driven by the heart slider 20, 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 first resetting member 14. 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 removal of the unlocking key 22 from the slider through hole 24, as shown in fig. 12-14, the side wall of the slider through hole 24 away from the locking piece 12 has an inclined section 25 facing the direction of the removal of the unlocking assembly, and the side of the inclined section 25 facing the unlocking assembly has an inclined surface 26, and the unlocking key 22 is removed from the slider through hole 24 at the inclined surface 26.

As shown in fig. 17 to 19, the second locking assembly includes a locking lever 27 abutting against the insertion part 8 and preventing the insertion part 8 from rotating, and a second reset member 28 driving the locking lever 27 to move toward the rotating member 3; the rotating part 3 is rotated to the rotating part locking position from the rotating part initial position, the locking rod 27 is pushed to overcome the biasing force of the second reset part 28 to move, when the rotating part 3 is located to the rotating part locking position, the second reset part 28 pushes the locking rod 27 to move towards the rotating part 3 to abut against the inserting part 8, so that the rotating part is locked.

In this embodiment, the first locking component and the second locking component are both disposed on one side of the rotating member 3, wherein the direction of disposing the first restoring member 14 and the second restoring member 28 is parallel to the axial direction of the connecting shaft 36, and the first restoring member 14 and the second restoring member 28 are both springs. The structure of the electric appliance door lock can be more compact by the arrangement structure, so that the volume of the electric appliance door lock is correspondingly reduced.

The first side wall 10 of the insertion part 8 is provided with an insertion part locking surface 29 facing the locking rod 27, when the rotating part 3 is located at the rotating part locking position, the insertion part locking surface 29 faces the insertion hole 2, and the upper end of the locking rod 27 is provided with a locking rod locking surface 30 which is obliquely arranged upwards and matched with the insertion part locking surface 29.

In order to prevent the automatic unlocking of the electric appliance door lock when the electric appliance is used, the electric appliance door lock further comprises a limiting block 31 connected with the peach-heart slide block 20 and controlled by the peach-heart slide block 20 to move, when the locking rod 27 abuts against the rotating piece 3 at the locking position of the rotating piece, the locking rod 27 is moved away from a path where the limiting block 31 extends, and the limiting block 31 prevents the locking rod 27 from moving after extending out.

The power switch-on structure is in transmission connection with the rotating piece 3. The power supply connection structure comprises a power-off ejector rod 32 capable of extending out of the electrical box 5, a locking rod through hole 33 for inserting the power-off ejector rod 32 is arranged on the locking rod 27, and an ejector rod shifting-out slope suitable for shifting out of the power-off ejector rod 32 is arranged on the side wall, facing the power-off ejector rod 32, of the locking rod through hole 33.

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 heart sliding block 20 in the electric box 5 and can drive the heart sliding block 20 to act.

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: rotate the upset of 3 and rotate a butt portion 16 and the lock piece locking part 17 butt of the lock piece 12 of rotating on the piece 3 simultaneously, it continues the upset to rotate the piece 3, it promotes to rotate the piece 3 the lock piece 12 removes towards first 14 directions that reset, the butt of lock piece 12 first slider 13, and then drive first slider 13 and overcome the partial pressure removal that first reset 14. When the rotor 3 rotates to the rotor locking position, the rotor abutting part 16 is not abutted with the rotor locking part 17 of the lock block 12, the first slide block 13 receives the biasing force of the first resetting piece 14 to drive the lock block 12 to move towards the rotor 3, the lock block 12 receives the biasing force of the lock block resetting piece 15, and the lock block locking surface 18 on the lock block 12 is abutted with the rotor abutting part 16 on the rotor 3; the motion relationship between the rotating part 3 and the second locking component is as follows: the turning piece 3 is turned over and the first side wall 10 of the turning piece 3 pushes the locking lever 27 to move against the biasing force of the second reset piece 28, when the turning lever moves to the turning lever locking position, the second reset piece 28 drives the locking lever 27 to move towards the turning piece 3, and then the locking lever locking surface 30 on the locking lever 27 abuts against the insertion part locking surface 29 on the turning piece 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 hook 1 on the door panel pulls the rotating piece 3 to turn, the rotating piece abutting part 16 on the rotating piece 3 pushes the locking block 12 to move or rotate against the biasing force of the locking block resetting piece 15, and when the rotating piece abutting part 16 on the rotating piece 3 is separated from the locking block locking surface 18 on the locking block 12, the door hook 1 is completely separated from the door lock, and the door panel is opened. At this time, the lock block 12 returns to the original position again by the biasing force of the lock block returning member 15, and the next locking operation can be performed. The motion relationship between the rotating part 3 and the second locking component is as follows: the door hook 1 on the door panel pulls the rotating piece 3 to turn over, the rotating piece 3 pushes the locking rod 27 to move against the second resetting piece 28 until the door hook 1 is completely separated from the door lock, the door panel is opened, and at the moment, the locking rod 27 is restored to be in contact with the rotating piece 3 located at the initial position of the rotating piece under the action of the biasing force of the second resetting piece 28.

The function of locking starts, and the piece 3 that rotates is located the rotation and locks the position this moment, and electric box 5 works, and peach heart slider 20 removes and drives stopper 31 protrusion electric box 5, and stopper 31 stretches into the one side of locking lever 27, prevents the removal of locking lever 27, in order to lock the position of locking lever 27, the piece 3 that rotates can't overturn, 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 lock piece locking surface 18 of the lock piece 12 is disengaged from the turn piece abutment portion 16, the turn piece 3 receives the biasing force of the turn piece torsion spring, and the turn piece 3 pushes the lock lever 27 to move. At this moment, the rotating part 3 is turned to the initial position of the rotating part, the door hook 1 is completely separated from the door lock, the automatic unlocking function of the door lock is realized, when the peach-heart slide block 20 drives the unlocking key 22 to move out of the slide block through hole 24, the first slide block 13 is restored to be positioned under the action of the first resetting part 14, and the locking rod 27 is restored to be positioned under the action of the second resetting part 28, the rotating part 3 is contacted with the initial position of the rotating part, and the next locking action can be carried out.

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 locking rod through hole 33 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 ejector rod 32 is inserted into the locking rod through hole 33, and a power supply in the electrical box 5 is disconnected, so that the electrical appliance can be prevented from working when the door hook is not inserted, and the safety is improved.

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 can be made without departing from 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 an inserting 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 after being 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;

a first locking assembly comprising a locking piece (12) for locking the rotary piece (3), and a first reset piece (14) for providing the locking piece (12) with a reset to a locking piece initial position when the locking piece (12) moves;

the power supply connection structure is in transmission connection with the rotating piece (3);

when the door is closed, the door hook (1) pushes the rotating piece (3) to rotate from the initial position of the rotating piece to the locking position of the rotating piece, the rotating piece (3) abuts against the locking block (12) in the rotating process to push the locking block (12) to move, when the rotating piece (3) rotates to the locking position of the rotating piece, the first resetting piece (14) drives the locking block (12) to reset to the initial position of the locking block, and the locking block (12) is clamped with the rotating piece (3) after being reset to the initial position of the locking block to lock the rotating piece (3); meanwhile, the rotating piece (3) drives the power connection structure to act, so that the power connection structure drives the power in the electrical box (5) to be connected;

a rotating part abutting part (16) is arranged at one end, far away from the inserting part (8), of the rotating part (3), a locking part (17) abutted to the rotating part abutting part (16) is arranged on the locking block (12), when the rotating part (3) rotates from the initial position of the rotating part to the locking position of the rotating part, the rotating part abutting part (16) pushes the locking part (17) to move so as to drive the locking block (12) to move by overcoming the biasing force of the first resetting part (14), when the rotating part (3) is located at the locking position of the rotating part, the locking block (12) is abutted to the rotating part abutting part (16) by the biasing force of the first resetting part (14), and the rotating part (3) is prevented from returning to the initial position of the rotating part;

the rotating part abutting part (16) is a U-shaped bulge arranged at one end of the rotating part (3) far away from the inserting part (8), a rotating space for the U-shaped bulge to rotate is formed in the locking block (12), and the side wall of the rotating space, which is positioned on one side of the connecting shaft (36) in the axial direction, is the locking part (17) of the locking block;

one end of the locking piece locking part (17) facing the U-shaped protrusion is provided with a V-shaped locking piece locking end (19) with the tip facing the U-shaped protrusion.

2. The appliance door lock according to claim 1, characterized in that the upper end of the lock piece locking part (17) has a lock piece locking surface (18) facing the turning piece (3).

3. The appliance door lock according to claim 1 or 2, wherein the first locking assembly further comprises a first slider (13) arranged in 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.

4. The appliance door lock according to claim 3, 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).

5. The appliance door lock according to claim 4, characterized in that the axis of the lock block reset (15) coincides with the center line of the lock block (12).

6. The electric appliance door lock according to claim 4, characterized in that the lower end of the lock block (12) far away from the rotating piece (3) is rotatably connected with the first slider (13), the rotation axis of the lock block (12) is parallel to the connection axis of the rotating piece (3), and one end of the lock block reset piece (15) is connected with the upper end of the lock block (12).

7. The electric appliance door lock according to claim 3, characterized by further comprising an unlocking assembly driven by a heart slider (20), wherein the unlocking assembly is connected with 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 first reset member (14).

8. The appliance door lock of claim 7, 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).

9. The appliance door lock according to claim 8, 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).

10. The appliance door lock according to claim 1 or 2, characterized in that it further comprises a second locking assembly comprising a locking lever (27) abutting against the plug-in part (8) preventing the plug-in part (8) from rotating, and a second reset element (28) driving the locking lever (27) towards the rotating element (3); the rotation piece (3) is by rotate an initial position to when rotating a latched position and rotating, promote locking lever (27) overcome the biasing force that the second resets piece (28) removes, rotate piece (3) and be located when rotating a latched position, the second resets piece (28) and promotes locking lever (27) orientation rotate piece (3) and remove, the butt grafting portion (8), in order to lock rotate the piece.

11. The appliance door lock according to claim 10, characterized in that the side wall of the plug-in part (8) facing the locking lever (27) is provided with a plug-in part locking surface (29), the plug-in part locking surface (29) facing the plug hole (2) when the turn piece (3) is in the turn piece locking position; the upper end of the locking rod (27) is provided with a locking rod locking surface (30) which is matched with the plug part locking surface (29) and is arranged obliquely upwards.

12. The electric appliance door lock according to claim 11, further comprising a stop block (31) connected with the heart slider (20) and controlled by the heart slider (20) to move, when the locking rod (27) abuts against the rotating piece (3) at the rotating piece locking position, the locking rod (27) moves away from a path into which the stop block (31) extends, and the stop block (31) prevents the locking rod (27) from moving after extending.

13. The electric appliance door lock according to claim 10, wherein the power connection structure comprises a power-off push rod (32) capable of extending out of the electric box (5), the locking rod (27) is provided with a locking rod through hole (33) for inserting the power-off push rod (32), and a push rod moving-out slope suitable for moving out of the power-off push rod (32) is arranged on a side wall of the locking rod through hole (33) moving towards the power-off push rod (32).