CN111549495B

CN111549495B - Double-coil automatic door opening lock and washing machine with same

Info

Publication number: CN111549495B
Application number: CN202010436411.0A
Authority: CN
Inventors: 王立孟
Original assignee: Wenzhou Tianjian Electric Co ltd
Current assignee: Wenzhou Tianjian Electric Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2022-06-28
Anticipated expiration: 2040-05-21
Also published as: CN111549495A

Abstract

The invention provides a double-coil automatic door lock and a washing machine with the same, belonging to the technical field of door locks, wherein the double-coil automatic door lock comprises: the protection device comprises a cam, a lock catch, a protection rod and two electromagnetic mechanisms, wherein the first electromagnetic mechanism is used for driving a limiting block to lock the protection rod in a first state, and the second electromagnetic mechanism is used for driving the lock catch to twist towards an unlocking state; the double-coil automatic door lock comprises two electromagnetic mechanisms which are respectively used for controlling the two-time unlocking of the cam, when the first electromagnetic mechanism drives the limiting block to unlock the protection rod, the protection rod can slide backwards, and then the lock catch can unlock the cam through the action of the second electromagnetic mechanism.

Description

Double-coil automatic door opening lock and washing machine with same

Technical Field

The invention relates to the technical field of door locks, in particular to a double-coil automatic door opening lock and a washing machine with the same.

Background

The door lock applied to the door of the washing machine generally adopts an automatic door lock at present, and the working principle of the door lock is that an electromagnetic coil is utilized to drive a lock catch to unlock a cam.

When the existing automatic door-opening lock is unlocked, the cam can be unlocked by one-time action by adopting an electromagnetic coil.

However, in practical use, when washing with hot water, the temperature inside the washing machine is high, and therefore, for safety, it is necessary to wait for a certain period of time before opening the door after the washing machine stops operating. At this time, if the existing door opening mode is adopted, direct door opening may cause danger to the user.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the automatic door-opening lock in the prior art can open the door by one-time action of the coil, so that danger is easily caused, thereby providing the double-coil automatic door-opening lock.

In order to solve the above technical problems, the present invention provides a double-coil automatic door lock, comprising:

the cam is rotationally connected in the lock shell;

the lock catch is connected in the lock shell in a manner of being capable of being twisted left and right relative to the rotating surface of the cam, the lock catch has a locking state of being twisted towards a direction close to the cam and then being connected with the cam, and the lock catch also has an unlocking state of being twisted towards a direction far away from the cam and then being disconnected with the cam;

The protective rod is arranged in the lock shell in a sliding mode and provided with a blocking surface used for being abutted to the cam, the protective rod has a first state that the blocking surface is abutted to the cam after sliding towards the direction close to the cam, and the protective rod also has a second state that the protective rod slides towards the direction far away from the cam;

the first electromagnetic mechanism is provided with a first iron core which is used for driving a limiting block to lock the protection rod in a first state;

and the second electromagnetic mechanism is provided with a second iron core which is used for driving the lock catch to twist towards the unlocking state.

Preferably, the method further comprises the following steps:

one end of the lever unlocking piece is rotatably connected in the lock shell, the other end of the lever unlocking piece is connected with the lock catch, and the lever unlocking piece is connected with the second iron core;

an unlocking member spring connected between the lever unlocking member and the lock case for providing a biasing force for twisting the lever unlocking member toward a locking direction.

Preferably, the method further comprises the following steps:

the dwang is connected lever unlocking piece with between the hasp, the dwang passes through the rotatable connection of pivot and is in on the lever unlocking piece, the top of dwang through from top to bottom twist reverse the structure with the hasp is connected.

Preferably, the lever unlocking piece is provided with a limiting column which extends upwards towards the lock catch;

have on the hasp and be used for holding the rectangular spout of spacing post, the length direction of rectangular spout with the direction of torsion of hasp is perpendicular.

Preferably, the lower end of the latch has a protruding end, and the lever unlocking member has an extending end extending forward of the protruding end of the latch.

Preferably, the method further comprises the following steps:

the kicking block slides and sets up the bottom of lever unblocking spare, the top of kicking block is suitable for the butt and is in the bottom of dwang, be connected with between the tail end of kicking block and the lever unblocking spare and keep the spring, it has the messenger to keep the spring the kicking block orientation the biasing force that the dwang direction was supported.

Preferably, the lever unlocking piece is provided with a slot for connecting with the second iron core, the slot is provided with a through opening, and the inner width of the through opening is greater than the width of the opening;

the end part of the second iron core is provided with an annular flange, the annular flange is accommodated in the slot, and the rod part of the second iron core is suitable for sliding in the horizontal direction in the through hole after passing through the through hole.

Preferably, the method further comprises the following steps:

the heart-shaped sliding block is connected in the electric appliance box in a sliding manner and is connected with the first iron core; the lateral wall of the peach-heart sliding block is provided with a groove, an inclined plane used for driving the limiting block is arranged in the groove, and the limiting block is provided with a cylinder suitable for extending into the groove.

As a preferred scheme, the lower end of the peach heart sliding block is also provided with a square column extending out of the electric appliance box;

the protection rod is provided with a blocking end used for blocking the square column, and when the protection rod moves to the second state, the blocking end is abutted to the square column.

Preferably, the method further comprises the following steps:

the ejector rod is connected in the electric appliance box in a sliding manner, one end of the ejector rod is suitable for connecting or disconnecting a circuit, and the other end of the ejector rod is provided with a round head extending out of the electric appliance box;

the protection rod is provided with a driving groove used for containing the round head of the ejector rod, and the driving groove is provided with an inclined surface used for driving the ejector rod to retract into the electric box.

The invention also provides a washing machine, which is provided with the double-coil automatic door-opening lock in any scheme.

The technical scheme of the invention has the following advantages:

1. the double-coil automatic door-opening lock provided by the invention is provided with two electromagnetic mechanisms which are respectively used for controlling two times of unlocking of the cam, after the first electromagnetic mechanism drives the limiting block to unlock the protection rod, the protection rod can slide backwards, and then the lock catch can unlock the cam through the action of the second electromagnetic mechanism.

In addition, with the development of intellectualization, the requirement of controlling the door opening by sound is provided, however, when the door lock in the prior art controls the door opening by one electromagnetic mechanism, if a sound control unit is arranged, the electromagnetic mechanism may receive an error sound signal to cause the mistaken door opening action because the sound signal is received to have certain interference. In order to avoid the situation, the double-coil automatic door-opening door lock has the advantages that the sound control unit is only connected with the second electromagnetic mechanism, the door lock can be opened only through the action of the second electromagnetic mechanism after the first electromagnetic mechanism acts, and therefore the problem of mistaken unlocking in the washing process is solved.

2. According to the double-coil automatic door-opening lock, the lock catch is connected to the lever unlocking piece through the rotating rod, so that the lock catch can be connected into the lock shell in a left-right twisting mode relative to the rotating surface of the cam; and, the setting of dwang makes the hasp can also revolute the top of dwang and twist back from top to bottom to make the hasp remove the locking from the top with the cam, when unblanking by force, pulling or promote the door plant and make the cam overturn by force, can make the hasp remove from the top with being connected of cam, thereby guarantee the function of unblanking of child's lock.

3. The invention provides a double-coil automatic door-opening lock, wherein a limiting post extending upwards towards a lock catch is arranged on a lever unlocking piece, and the limiting post is inserted into a long sliding groove of the lock catch, so that the lock catch keeps the torsion consistency in the left-right direction relative to the lever unlocking piece, and the torsion of the lock catch in the front-back direction and the up-down direction is not influenced.

4. The invention provides a double-coil automatic door lock, wherein the lower end of a lock catch is provided with a protruding end, a lever unlocking piece is provided with an extending end extending towards the front of the protruding end of the lock catch, and when the lock catch is pulled to move towards the front, the protruding end below the lock catch is matched with the extending end of the lever unlocking piece, so that the lock catch can be twisted upwards, the lock catch is connected with a cam in a more rapid contact manner, and the unlocking function of a child lock is realized.

5. The double-coil automatic door-opening lock provided by the invention is characterized in that the bottom of the lever unlocking piece is also provided with a top block which is matched with the rotating rod, and the rotating rod can have vertical biasing force through the top block, so that the top end of the double-coil automatic door-opening lock can be better kept connected with the lock catch.

6. The invention provides a double-coil automatic door lock, wherein a first iron core of a first electromagnetic mechanism drives a limiting block through a peach heart slide block, a groove is arranged on the peach heart slide block, an inclined plane for driving the limiting block is arranged in the groove, a cylinder suitable for extending into the groove is arranged on the limiting block, when the peach heart slide block is driven by the first driving mechanism to slide, the peach heart slide block can drive the cylinder of the limiting block to move up and down through the inclined plane in the groove, so that the limiting block can move up and down, when the limiting block moves down, the limiting block can be inserted into a protection rod for locking a cam, so that the protection rod keeps a first state for locking the cam, and at the moment, the cam cannot be unlocked whether a second electromagnetic mechanism acts or not.

7. According to the double-coil automatic door-opening door lock, the square column extending out of the electric appliance box downwards is further arranged on the peach-heart sliding block, the blocking end matched with the square column is arranged on the protective rod, and when the protective rod is driven by the cam to be in the second state, the blocking end of the protective rod is abutted to the square column, so that the peach-heart sliding block cannot be driven by the first electromagnetic mechanism to slide, the limiting block cannot be driven to move downwards, and the fact that parts cannot interfere with each other due to misoperation is guaranteed.

8. The double-coil automatic door-opening door lock provided by the invention is characterized in that the push rod is arranged in the electric box, the push rod can move up and down, when the push rod moves to the upper end, a circuit of the electric box can be conducted, and when the push rod moves to the lower end, the circuit of the electric box can be disconnected. The lower end of the ejector rod is a round head extending out of the electrical box, a driving groove used for containing the round head of the ejector rod is formed in the protective rod, an inclined plane used for driving the ejector rod to retract into the electrical box is formed in the driving groove, when the door hook is inserted into the door lock, the cam is turned upwards, the protective rod moves towards the cam under the action of a reset spring to enter a first state, in the process of entering the first state, the inclined plane of the driving groove in the protective rod drives the ejector rod to move upwards to retract into the electrical box, and after the ejector rod moves to the upper end, a circuit in the electrical box is conducted; after the door hook is pulled out of the cam, the cam is turned downwards, the protection rod overcomes the action of the reset spring under the action of the cam and moves towards the direction far away from the cam to enter a second state, in the process of entering the second state, the inclined surface of the driving groove on the protection rod is in contact with the driving of the ejector rod, the ejector rod can move downwards, and when the ejector rod moves to the lower end, a circuit in the electric appliance box can be disconnected.

9. The washing machine provided by the invention has any one of the advantages because of having any one of the double-coil automatic door-opening locks.

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 embodiments or the prior art descriptions 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 perspective view illustrating an embodiment of a dual coil automatic door lock according to the present invention.

Fig. 2 is a schematic perspective view of the lever unlocking member and the second electromagnetic mechanism in fig. 1.

Fig. 3 is a schematic perspective view of fig. 2 at another angle.

Fig. 4 is a front sectional view of fig. 3.

Fig. 5 is a state change diagram of the latch of fig. 4.

Fig. 6 is a schematic perspective view of the protection rod and the electrical box in fig. 1.

Fig. 7 is a perspective view of the protective rod of fig. 6.

Fig. 8 is a schematic diagram of the first electromagnetic mechanism inside the electric box in cooperation with the limiting member and the protection lever.

Fig. 9 is a schematic perspective view of the first electromagnetic mechanism and the position-limiting element in fig. 8.

Fig. 10 is a schematic bottom perspective view of fig. 6.

Fig. 11 is a schematic perspective view of the protection rod hidden in fig. 10.

Description of reference numerals:

1. a lock case; 2. a first electromagnetic mechanism; 3. a second electromagnetic mechanism; 4. a cam; 5. locking; 6. a guard bar; 7. a second iron core; 8. a lever unlocking member; 9. rotating the rod; 10. an unlocking member spring; 11. a limiting column; 12. a strip chute; 13. a slot; 14. an overhang; 15. an extension end; 16. a rotating shaft; 17. a top block; 18. a retention spring; 19. an electrical box; 20. a blocking surface; 21. a blocking end; 22. a drive slot; 23. a peach heart slider; 24. a square column; 25. a top rod; 26. a limiting block; 27. and (4) a cylinder.

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 and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.

Furthermore, 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.

Example 1

The present embodiment provides a specific implementation of a dual-coil automatic door lock, as shown in fig. 1, including: the lock comprises a lock shell 1, wherein a first electromagnetic mechanism 2, a second electromagnetic mechanism 3, a cam 4, a lock catch 5 and a protection rod 6 are arranged in the lock shell 1. The cam 4 is rotatably connected in the lock shell 1, the lock catch 5 is connected in the lock shell 1 in a manner of being capable of performing left-right torsion relative to a rotating surface of the cam 4, and the left-right torsion is in the direction of an arrow shown on the lock catch 5 in fig. 1; the lock catch 5 has a locking state that the lock catch is connected with the cam 4 after being twisted towards a direction close to the cam 4, the lock catch 5 also has an unlocking state that the lock catch is disconnected with the cam 4 after being twisted towards a direction far away from the cam 4, and when the second iron core 7 in the second electromagnetic mechanism 3 acts, the lock catch 5 can be driven to be twisted towards the unlocking state.

As shown in fig. 2, the lock case 1 further includes: lever unlocking

piece

8, 8 one ends of lever unlocking piece rotate to be connected in lock shell 1, the other end with hasp 5 is connected, and is concrete, lever unlocking piece 8 with hasp 5 is for connecting through dwang 9, lever unlocking piece 8 with be connected with unlocking piece spring 10 between the lock shell 1, unlocking piece spring 10 is used for providing the messenger lever unlocking piece 8 is towards the torsional biasing force of locking direction.

As shown in fig. 2, the lever unlocking member 8 has a limiting post 11 extending upward toward the lock catch 5, the lock catch 5 has a long sliding groove 12 for accommodating the limiting post 11, and the length direction of the long sliding groove 12 is perpendicular to the twisting direction of the lock catch 5.

As shown in fig. 2, the lever unlocking piece 8 is connected to the second iron core 7, specifically, the lever unlocking piece 8 has a slot 13 for connecting to the second iron core 7, the slot 13 has a through opening, and an inner width of the through opening is greater than a width of the opening; the end of the second iron core 7 has an annular flange, the annular flange is accommodated in the slot 13, and the rod part of the second iron core 7 is suitable for sliding in the horizontal direction in the through hole after passing through the through hole.

As shown in fig. 3, the lower end of the latch 5 has a protruding end 14, and the lever unlocking member 8 has an extending end 15 extending forward of the protruding end 14 of the latch 5.

As shown in fig. 4, the dwang 9 is connected the lever unblock piece 8 with between the hasp 5, the dwang 9 is in through the rotatable connection of pivot 16 on the lever unblock piece 8, the top of dwang 9 through turn round from top to bottom the structure with hasp 5 is connected.

As shown in fig. 4, the bottom of the lever unlocking piece 8 is slidably provided with a top block 17, the top end of the top block 17 is adapted to abut against the bottom end of the rotating rod 9, a retaining spring 18 is connected between the tail end of the top block 17 and the lever unlocking piece 8, and the retaining spring 18 has a biasing force that the top block 17 abuts against the rotating rod 9.

As shown in fig. 5, when the child lock is forcibly unlocked, the door panel is pulled or pushed to forcibly turn over the cam 4, so that the latch 5 is pulled to move forward, the latch 5 is released from the cam 4 from above, and at this time, the protruding end 14 of the latch 5 is matched with the extending end 15 of the lever unlocking piece 8, so that the latch 5 can be twisted upward, and the latch 5 can be more quickly connected with the cam 4, thereby realizing the unlocking function of the child lock.

As shown in fig. 6, the protection rod 6 is slidably disposed in the lock case 1, an electrical box 19 is further disposed in the lock case 1, and a part extending from a lower end of the electrical box 19 is engaged with the protection rod 6. Specifically, the protection lever 6 has a first state in which the blocking surface 20 abuts against the cam 4 after sliding in a direction approaching the cam 4, and the protection lever 6 has a second state in which the blocking surface 20 slides in a direction away from the cam 4, wherein when the first iron core of the first electromagnetic mechanism 2 is operated, the stopper 26 can be driven to lock the protection lever 6 in the first state.

As shown in fig. 7, the protection bar 6 includes: a blocking surface 20, a blocking end 21 and a driving groove 22, wherein the driving groove 22 is internally provided with a bevel; wherein said blocking surface 20 faces the cam 4 for abutting against the cam 4, and when the shielding bar 6 is locked in the first state, the cam 4 is abutted by said blocking surface 20 and cannot be turned downwards, thereby locking the door lock.

As shown in fig. 7, in the protection rod 6, the blocking end 21 is used for matching with the peach-heart slide block 23 in the electric appliance box 19, when the protection rod 6 is unlocked and the protection rod 6 is driven by the cam 4 to slide backwards to the second state, the blocking end 21 is abutted on the square column 24 of the peach-heart slide block 23 extending out of the electric appliance box 19, so that the peach-heart slide block 23 cannot be driven to move, and the peach-heart slide block 23 is protected from misoperation.

As shown in fig. 7, in the protection rod 6, the driving groove 22 is used for matching with the ejector rod 25 in the electric box 19, when the protection rod 6 is driven by the cam 4 to slide backwards to the second state after the protection rod 6 is unlocked, the ejector rod 25 in the electric box 19 is opposite to the driving groove 22, and the end part of the ejector rod can move downwards to enter the driving groove 22; during the movement of the shielding bar 6 against the cam 4 toward the first state, the slope in the driving groove 22 drives the plunger 25 to move upward, so that the plunger 25 drives the circuit in the electrical box 19 to be completed.

As shown in fig. 8, a first electromagnetic mechanism 2, a heart slider 23 and a limiting block 26 are provided in the electrical box 19, and a first iron core of the first electromagnetic mechanism 2 is connected to the heart slider 23 and is used for driving the heart slider 23 to slide; stopper 26 is under the drive of peach heart slider 23 for reciprocate and carry on spacingly to fender rod 6, and is specific when stopper 26 moves down and stretches into the holding tank of fender rod 6, can make fender rod 6 keep the first state to the cam 4 butt, thereby avoids cam 4 upset downwards.

As shown in fig. 9, the heart slider 23 is slidably connected in the electrical box 19, one end of the heart slider 23 is connected to the first iron core of the first electromagnetic mechanism 2, a groove is formed on a side wall of the heart slider 23, an inclined plane for driving the stopper 26 is formed in the groove, and a cylinder 27 adapted to extend into the groove is formed on the stopper 26.

As shown in fig. 10, a square column 24 extending outside the electric appliance box 19 is provided at a lower end of the heart slider 23 in the electric appliance box 19, a blocking end 21 for blocking the square column 24 is provided on the protection lever 6, and when the protection lever 6 is moved backward to the second state, the blocking end 21 abuts against the square column 24.

As shown in fig. 11, the plunger 25 in the electric box 19 is slidably connected in the electric box 19, one end of the plunger 25 is suitable for making or breaking the circuit of the electric box 19, and the other end of the plunger 25 has a round head extending out of the electric box 19, the round head is suitable for extending into the driving groove 22 of the protection rod 6 and being suitable for being driven by the inclined surface on the driving groove 22 to retract into the electric box 19.

Principle of operation

Before unlocking takes place, the door hook projects into the cam 4, as shown in fig. 8, so that the cam 4 is turned upwards. The protection rod 6 moves towards the cam 4 under the action of the tail end return spring to enter a first state, the blocking face 20 at the top end of the protection rod 6 abuts against the bottom end of the cam 4, at the moment, the protection rod 6 is locked through the limiting block 26, the cam 4 can be indirectly locked, and the cam 4 cannot turn downwards. In addition, while the cam 4 is turned upward, as shown in fig. 2, the latch 5 located above the cam 4 catches the cam 4, so that the cam 4 remains locked to the door hook.

When unlocking is performed, firstly, the first electromagnetic mechanism 2 needs to drive the limiting block 26 to unlock the protection rod 6, so that the protection rod 6 can slide backwards, and then the second electromagnetic mechanism acts to unlock the cam 4, so that the cam 4 can be turned downwards under the action of the spring, and the lock catch 5 can unlock the cam 4.

In addition, when the limiting block 26 does not lock the protection rod 6, the door hook is inserted into the cam 4, and after the cam 4 is clamped by the lock catch 5, the door can be unlocked forcibly in a mode of pulling from the outside or pushing the door panel from the inside so as to prevent a child from entering the door by mistake, and the child locking function is realized. Specifically, as shown in fig. 4 and 5, when the lock is forcibly unlocked, the cam 4 is forcibly turned downward to drive the lock catch 5 to move forward, and when the lock catch 5 is pulled to move forward, the protruding end 14 below the lock catch 5 is matched with the extending end 15 of the lever unlocking piece 8, so that the lock catch 5 can be turned upward, and the lock catch 5 is disconnected from the cam 4 from above, thereby realizing the child lock function.

Example 2

This embodiment provides a washing machine, in which the door lock is the double-coil automatic door lock described in embodiment 1.

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 intended to be within the scope of the invention.

Claims

1. Automatic door lock that opens door of twin coil, its characterized in that includes:

the cam (4) is rotationally connected in the lock shell (1);

the lock catch (5) is connected into the lock shell (1) in a manner of being capable of being twisted left and right relative to the rotation surface of the cam (4), the lock catch (5) has a locking state of being twisted towards a direction close to the cam (4) and then being connected with the cam (4), and the lock catch (5) also has an unlocking state of being twisted towards a direction far away from the cam (4) and then being disconnected with the cam (4);

the protective rod (6) is arranged in the lock shell (1) in a sliding mode and provided with a blocking surface (20) used for being abutted to the cam (4), the protective rod (6) has a first state that the blocking surface (20) is abutted to the cam (4) after sliding towards the direction close to the cam (4), and the protective rod (6) also has a second state that the blocking surface (20) is slid towards the direction far away from the cam (4);

a first electromagnetic mechanism (2) having a first iron core for driving a stopper (26) to lock the protection lever (6) in a first state;

a second electromagnetic mechanism (3) having a second iron core (7) for driving the latch (5) to twist towards the unlocked state.

2. The dual coil automatic door lock as claimed in claim 1, further comprising:

One end of the lever unlocking piece (8) is rotatably connected in the lock shell (1), the other end of the lever unlocking piece is connected with the lock catch (5), and the lever unlocking piece (8) is connected with the second iron core (7);

an unlocking spring (10) connected between the lever unlocking member (8) and the lock case (1) for providing a biasing force for twisting the lever unlocking member (8) toward a locking direction.

3. The dual coil automatic door lock according to claim 2, further comprising:

dwang (9), connect lever unlocking piece (8) with between hasp (5), dwang (9) are in through the rotatable connection of pivot (16) on lever unlocking piece (8), the top of dwang (9) through from top to bottom twist reverse the structure with hasp (5) are connected.

4. The double-coil automatic door lock according to claim 3, wherein the lever unlocking member (8) has a stopper post (11) projecting upward toward the lock catch (5);

have on hasp (5) and be used for holding rectangular spout (12) of spacing post (11), the length direction of rectangular spout (12) with the direction of torsion of hasp (5) is perpendicular.

5. The double coil automatic door lock according to claim 4, wherein the latch (5) has a protruding end (14) at a lower end thereof, and the lever unlocking member (8) has an extension end (15) extending forward of the protruding end (14) of the latch (5).

6. The dual coil automatic door lock as claimed in claim 3, further comprising:

the kicking block (17), the slip sets up the bottom of lever unblock piece (8), the top of kicking block (17) is suitable for the butt and is in the bottom of dwang (9), be connected with between the tail end of kicking block (17) and lever unblock piece (8) and keep spring (18), keep spring (18) have the messenger kicking block (17) orientation the biasing force that dwang (9) direction was supported.

7. The double-coil automatic door lock according to claim 2, wherein the lever unlocking member (8) has a slot (13) for connecting with the second iron core (7), the slot (13) has a through opening, and the inside width of the through opening is larger than the width of the opening;

the end part of the second iron core (7) is provided with an annular flange, the annular flange is accommodated in the insertion groove (13), and the rod part of the second iron core (7) is suitable for sliding in the horizontal direction in the through hole after passing through the through hole.

8. The dual coil automatic door opening lock according to any one of claims 1 to 7, further comprising:

the heart-shaped sliding block (23) is connected in the electric appliance box (19) in a sliding manner and is connected with the first iron core; the side wall of the peach-heart sliding block (23) is provided with a groove, an inclined plane for driving the limiting block (26) is arranged in the groove, and a cylinder (27) which is suitable for extending into the groove is arranged on the limiting block (26).

9. The double-coil automatic door lock as claimed in claim 8, wherein the lower end of the peach-heart slider (23) is further provided with a square column (24) extending outside the appliance box (19);

the protection rod (6) is provided with a blocking end (21) used for blocking the square column (24), and when the protection rod (6) moves to the second state, the blocking end (21) is abutted to the square column (24).

10. The dual coil automatic door opening lock according to any one of claims 1 to 7, further comprising:

a push rod (25) which is connected in the electric appliance box (19) in a sliding way, one end of the push rod is suitable for connecting or disconnecting the circuit, and the other end of the push rod is provided with a round head extending out of the electric appliance box (19);

the guard bar (6) is provided with a driving groove (22) for accommodating the round head of the ejector rod (25), and the driving groove (22) is provided with a slope for driving the ejector rod (25) to retract into the electric box (19).

11. Washing machine, characterized in that it has a double-coil automatic door-opening lock according to any of claims 1 to 10.