CN110984703B

CN110984703B - Induction type door lock

Info

Publication number: CN110984703B
Application number: CN201911147229.7A
Authority: CN
Inventors: 王立孟
Original assignee: Wenzhou Tianjian Electric Co ltd
Current assignee: Wenzhou Tianjian Electric Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2021-04-20
Anticipated expiration: 2039-11-20
Also published as: CN110984703A

Abstract

The invention relates to the technical field of door locks, in particular to an induction type door lock. The door lock comprises a door hook, a lock shell, a rotating part, a control assembly, a driving assembly and an action rod; 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, 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 combined with the door hook; the control assembly is provided with a butting part which is positioned on the insertion path of the door hook and is arranged close to the insertion hole, and the door hook is butted with the butting part to push the butting part to act when being inserted into the insertion hole; the driving assembly is in linkage with the control assembly, and the control assembly enables the driving assembly to perform linkage action after the abutting part acts; the action piece receives drive assembly's drive action, and when drive assembly drive action, takes place to interfere with the rotation piece, drives the rotation piece and colludes by rotating an initial position to rotating a piece latched position removal with the door that rotates the piece and be connected.

Description

Induction type door lock

Technical Field

The invention relates to the technical field of door locks, in particular to an induction type 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. The prior art washing machine door lock is disclosed as Chinese patent document CN107245845B, and comprises a door hook, a lock shell, a rotating piece resetting elastic piece, a lock catch, a locking matching structure and a lock catch unlocking structure, wherein when the door is closed, the door hook is inserted into the lock shell, the rotating piece is driven by the door hook, the locking matching structure guides the lock catch to move from a lock catch resetting position to a lock catch locking position, the lock catch is blocked on a rotating path of the rotating piece, and 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, after the door hook is inserted into the lock case, the door hook drives the rotating member to rotate to insert the door hook, and the degree of automation of the door hook insertion process is low.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect of low automation degree in the door hook insertion process in the prior art, and provide an induction type door lock with high automation degree.

In order to solve the problems, the induction type door lock comprises a door hook, a lock shell, a rotating piece, a control assembly, a driving assembly and an action rod; 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, 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 control assembly is provided with a butting part which is positioned on the insertion path of the door hook and is arranged close to the insertion hole, and the door hook is butted with the butting part to push the butting part to act when being inserted into the insertion hole; the driving assembly is in linkage with the control assembly, and the control assembly enables the driving assembly to perform linkage action after the abutting part acts; the action piece receives drive assembly's drive action, and is in drive assembly drive action during, with it interferes to rotate the piece, drives rotate the piece and with rotate the piece and be connected the door collude by rotate the piece initial position to rotate the removal of piece latched position.

The rotating member is separated from the operating member when the rotating member is located at the rotating member locking position.

The inserting part is U-shaped, when the initial position of the rotating part is set, the U-shaped opening of the inserting part faces the jack, when the rotating part is driven by the action part to move, one side wall of the U-shaped inserting part is connected with the door hook to drive the door hook to move.

The control assembly is internally provided with a first piece, the driving assembly is internally provided with a second piece, and when the first piece moves towards the driving assembly and is within a set distance range from the second piece, the first piece enables the second piece to be communicated with a circuit in the driving assembly, so that the driving assembly acts.

The first piece is a magnet block, and the second piece is a normally open reed pipe connected to the circuit of the driving assembly.

The control assembly further comprises a guard bar and a guard bar biasing member connected to the guard bar for providing a biasing force to the guard bar for moving away from the drive assembly, the guard bar having an abutting portion at an end thereof remote from the drive assembly, the first member being fixedly disposed on the guard bar.

The driving assembly comprises a driving device arranged on the circuit and a push rod connected with the driving device and driven by the driving device to act, and the push rod is connected with the acting part.

The drive means comprises a wax motor.

The push rod is provided with a groove, the action piece is rotatably pivoted on the lock shell, one end of the action piece is inserted into the groove, and the push rod moves to drive the action piece to rotate.

The driving assembly further comprises a push rod spring arranged on the push rod and used for providing a reset force for the push rod.

The driving assembly further comprises a microswitch arranged on the circuit, and when the action piece rotates to the maximum position, the microswitch is pressed to turn off a power supply on the circuit.

The technical scheme of the invention has the following advantages:

1. the invention discloses an induction type door lock, which comprises a door hook, a lock shell, a rotating part, a control assembly, a driving assembly and an action rod, wherein the door hook is arranged on the lock shell; 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, 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 control assembly is provided with a butting part which is positioned on the insertion path of the door hook and is arranged close to the insertion hole, and the door hook is butted with the butting part to push the butting part to act when being inserted into the insertion hole; the driving assembly is in linkage with the control assembly, and the control assembly enables the driving assembly to perform linkage action after the abutting part acts; the action piece receives drive assembly's drive action, and is in drive assembly drive action during, with it interferes to rotate the piece, drives rotate the piece and with rotate the piece and be connected the door collude by rotate the piece initial position to rotate the removal of piece latched position. When the door hook is inserted into the jack and touches the abutting part, the abutting part is driven by the door hook to enable the control component to enable the driving component to perform linkage action, the driving component acts to drive the acting part to drive the rotating part to act, the door hook can be pulled to move from the initial position of the rotating part to the locking position of the rotating part when the rotating rod acts, and then the door hook is automatically inserted, so that the degree of automation is high, and the door hook is more labor-saving when being inserted.

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 view of an exploded structure of an induction door lock;

FIG. 2 is a schematic bottom view of the induction door lock;

FIG. 3 is a schematic view of the connection between the button and the pull rod;

FIG. 4 is a schematic structural view of the connection of the pull rod and the heart slide block;

FIG. 5 is a schematic view showing a structure in which a protection bar and a magnet block are coupled;

FIG. 6 is a schematic view of the slider and latch connection;

FIG. 7 is a schematic view of the connection between the slider, the pull rod and the key in an unlocked state;

FIG. 8 is a schematic view of the connection between the slider, the pull rod and the key in a locked state;

FIG. 9 is a first schematic view of the structure inside the mounting base when the door hook is not inserted;

FIG. 10 is a second schematic structural view of the interior of the mounting base when the door hook is not in the door;

FIG. 11 is a third schematic view of the structure inside the mounting base when the door hook is not inserted;

FIG. 12 is a schematic perspective view of portion A of FIG. 10;

FIG. 13 is a schematic view of the structure of a door hook pressed into a jack;

FIG. 14 is a first schematic structural view of the induction structure after the door hook is lightly pressed into the jack and the induction structure is powered on;

FIG. 15 is a second schematic structural view of the induction structure after the door hook is lightly pressed into the jack and the induction structure is powered on;

FIG. 16 is a third schematic structural view of the induction structure after the door hook is lightly pressed into the jack and the induction structure is powered on;

FIG. 17 is a first schematic view of the structure of the door opening in the door;

FIG. 18 is a second schematic view of the structure of the door opening in the door;

FIG. 19 is a third schematic view of the structure of the door in the open position;

FIG. 20 is a fourth schematic view of the structure of the door in the open position;

FIG. 21 is a schematic structural view of an emergency unlocking operation;

FIG. 22 is a first view of the enlarged view of portion A of FIG. 21;

FIG. 23 is a second enlarged view of portion A of FIG. 21;

FIG. 24 is a third schematic view of the enlarged view of portion A in FIG. 21;

FIG. 25 is a fourth schematic view of the enlarged view of portion A of FIG. 21;

description of reference numerals:

1-a seat cover; 2, locking and buckling; 3-a locking spring; 4-a slide block; 5-a slider spring; 6-key press; 7-a key spring; 8-a pull rod; 9-emergency release lever; 10-emergency release lever spring; 11-a rotating member; 12-a locking lever; 13-cam torsion spring; 14-cam studs; 15-a guard bar; 16-a locking lever spring; 17-a protection rod spring; 18-a magnet block; 19-mounting a base; 20-heart slide block; 21-a limiting block; 22-power off mandril; 23-an electrical box; 24-a housing; 25-a push rod; 26-a thermistor; 27-a wax motor; 28-reed pipe; 29-a microswitch; 30-an action stud; 31-a pusher spring; 32-door hook; 33-an action; 34-a jack; 35-switch key.

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, 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 induction type door lock in the embodiment mainly comprises a door hook 32, a shell, a mechanical structure, an electric box 23, an emergency unlocking structure and an induction structure.

The door hook 32 is adapted to be mounted on a door panel of an appliance.

The shell is suitable for being installed on an electric appliance body, is provided with a jack 34 for the insertion of the door hook 32, and comprises an installation base 19 and a seat cover 1, wherein the mechanical structure, the electric box 23, the emergency unlocking structure and the induction structure are arranged on the installation base 19, and the induction structure is close to one side of the jack 34 and arranged in parallel with the electric box 23.

The electrical box 23 includes a heart slider 20 therein, and the electrical box 23 is prior art and will not be described herein.

The emergency unlocking structure includes an emergency unlocking lever 9 and an emergency unlocking lever spring 10 provided on the mounting base 19, and the connection relationship and the movement relationship between the emergency unlocking lever 9 and the emergency unlocking lever spring 10 and the peach-heart slider 20 in the electric box 23 are also the same as those in the prior art, and therefore, the detailed description thereof is omitted.

The mechanical structure comprises the rotating part 11, a rotating part resetting part, a first locking component and a second locking component.

The rotating part 11 is rotatably installed in the installation base 19 through the cam stud 14, the rotating part 11 comprises an insertion part combined with the door hook 32 and a cam-shaped cam part connected with the insertion part, the insertion part is of a U-shaped structure, when the action part 33 is in a locking position, the length of a first side wall far away from the insertion hole 34 is larger than that of a second side wall close to the insertion hole 34, the second side wall is combined and connected with the door hook 32, and when the rotating part is in an initial position, a U-shaped opening of the insertion part faces the insertion hole 34. The rotating member 11 has an initial position of the rotating member and a locking position of the rotating member after being coupled to the door hook 32.

The rotating part resetting piece is connected with the rotating part 11 and used for elastically driving the rotating part 11 to rotate so that the rotating part is 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 is a cam torsion spring 13.

First locking Assembly is including being used for locking the hasp 2 that rotates piece 11, locate being used for in the mounting base 19 the slider 4 of hasp 2, and be in when slider 4 removes for slider 4 provides the slider spring 5 that resumes to slider initial position, slider spring 5's one end with slider 4 butt, the other end with mounting base 19 butt. The side wall of the lock catch 2 located in the axial direction of the cam stud 14 can abut against the side wall of the slide block 4, a lock catch spring 3 is arranged between one end of the lock catch 2 far away from the rotating part 11 and the slide block 4, and the lock catch spring 3 provides a biasing force towards the rotating part 11 for the lock catch 2, so that the lock catch 2 locks the rotating part 11.

The second locking assembly includes a locking lever 12 abutting against the socket portion to prevent the socket portion from rotating, and a locking lever spring 16 driving the locking lever 12 to move toward the rotating member 11. When the rotating member 11 rotates from the initial position of the rotating member to the locking position of the rotating member, the locking lever 12 is pushed to move against the biasing force of the locking lever spring 16, and when the rotating member 11 is located at the locking position of the rotating member, the locking lever spring 16 pushes the locking lever 12 to move toward the rotating member 11 and abut against the insertion portion, so that the rotating member 11 is locked.

In the present embodiment, the first locking member and the second locking member are disposed on the same side of the rotary member 11, and the slider spring 5 and the lock lever spring 16 are disposed in a direction parallel to the axial direction of the cam bolt 14. The arrangement can enable the structure of the induction type door lock to be more compact, and the volume of the induction type door lock is correspondingly reduced.

In order to prevent the induction automatic door lock from being automatically unlocked when the electric appliance is used, the mechanical structure further comprises a limiting block 21 which is connected with the peach-heart slide block 20 and is controlled by the peach-heart slide block 20 to move, when the locking rod 12 is abutted to the rotating piece 11 at the locking position of the rotating piece, the locking rod 12 is moved away from a path where the limiting block 21 extends, and the limiting block 21 extends out to prevent the locking rod 12 from moving so as to lock the rotating piece 11.

The electric box 23 is provided with a power supply structure therein, and the power supply structure is in transmission connection with the rotating member 11. In this embodiment, the power connection structure includes a power-off ejector rod 22 capable of extending out of the electrical box, a locking rod through hole for inserting the power-off ejector rod 22 is provided on the locking rod 12, and an ejector rod moving-out slope surface suitable for moving out of the power-off ejector rod 22 is provided on a side wall of the locking rod through hole moving towards the power-off ejector rod 22.

When the washing machine works, the service life of the door lock is over or the washing machine is suddenly powered off and other abnormal conditions occur, the washing machine door cannot be opened, the emergency unlocking rod 9 can be pulled to carry out emergency unlocking, the emergency unlocking rod 9 is connected with the peach-heart slide block 20 in the electric box 23, and the action of the peach-heart slide block 20 can be driven to unlock.

The sensing structure includes a control assembly, a drive assembly and an actuator 33.

The control component is provided with a butting part which is positioned on the insertion path of the door hook 32 and is arranged close to the insertion hole 34, and when the door hook 32 is inserted into the insertion hole 34, the butting part is butted with the butting part to push the butting part to act. The driving assembly and the control assembly are arranged in a linkage mode, and the control assembly enables the driving assembly to act after the abutting portion acts.

Specifically, a first piece is arranged in the control assembly, a second piece is arranged in the driving assembly, and when the first piece moves towards the driving assembly and is within a set distance range from the second piece, the first piece enables the second piece to be communicated with a circuit in the driving assembly, so that the driving assembly acts. In this embodiment, the first piece is a magnet block 18 and the second piece is a normally open reed switch 28 connected to the circuit of the drive assembly.

The control assembly further comprises a protection rod 15 and a protection rod biasing member which is connected with the protection rod 15 and provides a biasing force for the protection rod 15 to move away from the driving assembly, one end of the protection rod 15 away from the driving assembly is an abutting part, and the magnet block 18 is fixedly arranged on the protection rod 15. In this embodiment, the guardbar biasing member is a guardbar spring 12.

The driving assembly further comprises a driving device arranged on the circuit, a push rod 25 connected with the driving device and driven by the driving device to act, and a microswitch 29 arranged on the circuit, wherein when the acting piece 33 rotates to the maximum position, the microswitch 29 is pressed to turn off the power supply on the circuit. The push rod 25 is connected to the actuator 33. In this embodiment, the drive means includes a wax motor 27 and a thermistor 26. The microswitch 29 has a switch button 35, and when the switch button 35 is pressed, the power supply in the drive assembly is turned off.

Action 33 receives drive assembly's drive action, and is in during drive assembly drive action, with it interferes the drive to rotate piece 11 and with rotate the combination of piece 11 the door collude 32 by rotate a initial position to rotate a piece latched position and remove, and be in rotate piece 11 is located when rotating a piece latched position with action 33 separates. In order to make the structure of the induction type door lock simple and facilitate assembly and disassembly, a groove is arranged on the push rod 25, the action piece 33 is rotatably pivoted on the shell 24 of the driving assembly through the action piece bolt 30, one end of the action piece 33 is inserted into the groove, and the push rod 25 moves to drive the action piece 33 to rotate. A push rod spring 31 provided on the push rod 25 to provide a return force to the push rod 25 is also required.

When the rotating member 11 is driven by the operating member 33 to move, the second side wall of the U-shaped inserting portion is inserted into the door hook hole of the door hook 32 to drive the door hook 32 to move.

The working principle and the working process of the induction type door lock are as follows:

1. the door is not closed.

When the door hook 32 does not induct to enter the door lock, the power-off mandril 22 in the electric box 23 falls into the through hole of the locking rod 12, the coil column and the contact in the electric box 23 are disconnected, and the interior of the door lock is in a power-off state. The protection rod 15 is in an initial position under the action of the protection rod spring 17, the magnet block 18 in the protection rod 15 is far away from the reed pipe 28 in the induction structure, at the moment, the magnet block 18 cannot induce the reed pipe 28, and the induction structure is in a power-off state.

2. The door hook 32 is lightly pressed.

When the door hook 32 is lightly pressed, the door hook 32 is inserted into the insertion hole 34 and then pushes the abutting part of the protection rod 15, so that the protection rod 15 moves towards the induction structure, when the protection rod 15 runs to a set distance range, the magnet block 18 on the protection rod 15 triggers the reed switch 28 to be switched on, a circuit in the induction structure is switched on, the wax motor 27 arranged on the circuit works, the wax motor 27 works to push the push rod 25 to act, and the push rod 25 drives the acting piece 33 to rotate. The rotating part 11 is lifted in the rotating process of the acting part 33, when the acting part 33 turns to a certain angle, the convex surface on the acting part 33 extrudes the switch key 35 on the microswitch 29, the switch key 35 is pressed to disconnect the power supply in the induction structure, the wax motor 27 does not work after the circuit is powered off, the wax motor 27 resets, the push rod 25 resets under the action of the push rod spring 31, the push rod 25 resets to drive the acting part 33 to reset, and the automatic door closing is realized at the moment. That is, when the door hook 32 is lightly pressed into the insertion hole 34, the door can be automatically closed, so that the door can be closed more conveniently and more labor-saving.

When rotating piece 11 upset, the kicking block top of the cam portion of rotating piece 11 moves hasp 2, and hasp 2 removes and drives slider 4 and overcome slider spring 5 and remove rotating piece 11 rotates when rotating a latched position, and slider 4 resets under slider spring 5's effect, withstands rotating piece 11. Meanwhile, the insertion part of the rotating member 11 abuts against the locking lever 12 to push the locking lever 12 to move against the locking lever spring 16, when the rotating member 11 rotates to the rotating member locking position, the locking lever 12 moves towards the rotating member 11 under the action of the locking lever spring 16 to lock the insertion part of the rotating member 11, the inclined surface on the locking lever 12 jacks up the power-off push rod 22, the power-off push rod 22 enables the wiring terminal and the contact in the electric box 23 to be connected, so that the circuit in the electric box 23 is connected, and at this time, the rotating member 11 locks the door hook 32 but is not locked.

3. The power supply is started.

After the power supply is started, the coil in the electric box 23 works, the peach-heart slide block 20 moves upwards under the action of the peach-heart slide block spring 5, the peach-heart slide block 20 moves upwards to drive the limiting block 21 to protrude out of the surface of the electric box 23 and enter the through hole of the locking rod 12, the locking rod 12 is prevented from moving, and the forced locking effect is achieved. When the peach-heart slide block 20 moves upwards, the peach-heart slide block 20 drives the pull rod 8 to move upwards, and in the process that the pull rod 8 moves upwards, the key 6 in the pull rod 8 is popped in the square hole of the slide block 4 under the action of the key spring 7, so that the slide block 4 is locked. After the contacts in the electric box 23 are closed, the electric appliance starts to operate.

4. The door is automatically opened after the power supply is turned off.

After the power supply is turned off, the coil in the electric box resets, the peach-heart slide block 20 moves downwards under the action of the snap spring to reset, the peach-heart slide block 20 drives the limiting block 21 to reset, the limiting block 21 retracts into the electric box 23, the locking rod 12 is not blocked, and the locking rod 12 is unlocked; and in the process of resetting the peach-heart slide block 20, the pull rod 8 is driven to move downwards, the pull rod 8 moves downwards to drive the key 6 to move downwards, the key 6 moves downwards to drive the slide block 4 to move downwards, and the key 6 moves upwards on the inclined plane in the mounting base 19 to reset. The sliding block 4 moves downwards to drive the lock catch 2 on the sliding block 4 to move downwards, the lock catch 2 does not support the rotating part 11, the rotating part 11 is turned over and reset under the action of the cam torsion spring 13, and the door hook 32 is ejected out, so that automatic door opening is realized.

After the door hook 32 is ejected, the door hook 32 does not press the protection rod 15, the protection rod 15 is reset under the action of the protection rod spring 17, the distance between the magnet block 18 and the reed pipe 28 in the protection rod 15 is larger than a set distance range, and the reed pipe 28 disconnects the circuit in the shell 24. When the rotating piece 11 rotates, the convex inclined surface on the rotating piece 11 pushes against the inclined surface on the locking rod 12, so that the locking rod 12 resets, the locking rod 12 resets and pushes up the power-off mandril 22, and at this time, the circuit in the electric box 23 is disconnected.

5. And (6) opening the door inwards.

When the induction type door lock is in a state that the door hook 32 enters, but does not lock, the electric box 23 does not work, the door hook 32 is pulled, the rotating part 11 can turn, the top block at the rear end of the rotating part 11 in the turning process of the rotating part 11 pushes the lock catch 2, the lock catch 2 overcomes the lock catch spring 3 to move, the lock catch 2 does not push the rotating part 11, at this time, the rotating part 11 can be turned to reset, and the door hook 32 is pulled out.

6. And (4) emergency unlocking.

When the machine is suddenly powered off or the service life of the door lock is overdue and other abnormal conditions occur, the induction type door lock does not work, and the door plate of the electric appliance cannot be opened when the door lock is still in a working state, and the emergency unlocking rod 9 can be pulled at the moment. The contact on the emergency unlocking rod 9 pushes the v-shaped part on the peach-heart sliding block 20 to move downwards, the peach-heart sliding block 20 resets under the action of the snap spring, the downward movement of the peach-heart sliding block 20 drives the limiting block 21 to reset and the pull rod 8 to pull the sliding block 4 to move, the sliding block 4 moves to drive the lock catch 2 to move downwards so that the lock catch 2 does not push the rotating part 11, and the rotating part 11 is turned to the initial position of the rotating part under the action of the cam torsion spring 13 and is ejected out of the door hook 32.

The induction type door lock of this embodiment has that the induction door colludes automatic closing door, automatic opening door, in-opening door, urgent unblock function, can realize adding clothing etc. midway in the laundry, and degree of automation is high, uses laborsaving and convenience more.

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 induction door lock comprising:

a door hook (32) adapted to be mounted on a door panel of an appliance;

a lock case adapted to be mounted on the appliance body and having an insertion hole (34) into which the door hook (32) is inserted;

the rotating piece (11) is rotatably arranged in the lock shell, is provided with an inserting part combined with the door hook (32), 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 (32);

it is characterized by also comprising the following steps of,

the control assembly comprises a protection rod (15) and a protection rod biasing member connected with the protection rod (15), wherein one end of the protection rod (15) is provided with a butting part which is positioned on the insertion path of the door hook (32) and is arranged close to the insertion hole (34), and when the door hook (32) is inserted into the insertion hole (34), the side wall of the door hook (32) is butted with the butting part to push the protection rod (15) to act;

the driving assembly is in linkage with the control assembly, and the driving assembly is in linkage action after a protection rod (15) of the control assembly acts; the guard bar biasing part provides a biasing force for the guard bar (15) to move away from the driving assembly, a first piece is fixedly arranged on the guard bar (15), a second piece is arranged in the driving assembly, and when the first piece moves towards the driving assembly and is within a set distance range of the second piece, the first piece enables the second piece to be communicated with a circuit in the driving assembly to enable the driving assembly to act;

action piece (33), receives drive assembly's drive action, and is in drive assembly drive action during, with rotate piece (11) and take place to interfere, drive rotate piece (11) and with rotate that piece (11) are connected door collude (32) by rotate piece initial position to rotate the removal of piece latched position.

2. The inductive door lock according to claim 1, characterized in that the rotor (11) is separated from the actuator (33) when the rotor is in the rotor locking position.

3. The induction type door lock according to claim 2, wherein the insertion portion is U-shaped, when the rotating member is at the initial position, the U-shaped opening of the insertion portion faces the insertion hole (34), and when the rotating member (11) is driven by the operating member (33) to move, a side wall of the U-shaped insertion portion is connected with the door hook (32) to drive the door hook (32) to move.

4. An induction door lock according to claim 1, characterized in that the first piece is a magnet block (18) and the second piece is a normally open reed switch (28) connected to the electric circuit of the drive assembly.

5. The inductive door lock according to any of claims 1 to 4, characterized in that the drive assembly comprises a drive means arranged on the electric circuit and a push rod (25) connected to the drive means and driven by the drive means, the push rod (25) being connected to the actuator (33).

6. The inductive door lock according to claim 5, characterized in that the drive means comprise a wax motor (27).

7. The induction door lock according to claim 5, characterized in that the push rod (25) is provided with a groove, the operating member (33) is rotatably pivoted on the lock housing, one end of the operating member (33) is inserted into the groove, and the push rod (25) moves to drive the operating member (33) to rotate.

8. The inductive door lock according to claim 5, characterized in that the drive assembly further comprises a push rod spring (31) arranged on the push rod (25) providing a return force for the push rod (25).

9. The inductive door lock according to claim 5, characterized in that the drive assembly further comprises a microswitch (29) arranged on the electric circuit, the operating member (33) pressing the microswitch (29) when it is rotated to the maximum position to switch off the power supply on the electric circuit.