CN218092500U - Door lock structure for electric appliance and electric appliance applying same - Google Patents

Abstract

The utility model relates to a door lock structure for electrical apparatus, including shell, locking lever, ejecting piece, hasp, stopper, actuating mechanism, first switch, still include the second switch, the second switch setting with the control circuit electric signal connection of electrical apparatus in the casing to when hasp and locking lever unblock or locking, trigger its switch by ejecting. Through setting up the second switch, this lock structure can come feedback locking lever and hasp locking or not through first switch and second switch jointly, and whole lock structure's security is higher. The utility model discloses still relate to an use and have foretell an electric appliance that is used for the lock structure of electric appliance, have the higher advantage of security equally.

Description

Door lock structure for electric appliance and electric appliance applying same

Technical Field

The utility model relates to an electrical apparatus technical field, concretely relates to a lock structure and applied electrical apparatus that has this lock structure for electrical apparatus.

Background

For a box body with a functional cavity (such as a cleaning machine, a microwave oven, etc.), due to functional requirements, a door body capable of opening and closing the opening is usually disposed at the opening of a main body of an electric appliance, and the door body needs to be locked relative to the main body during use of the electric appliance.

For example, chinese patent application No. CN201910933585.5 (publication No. CN 112576112A) discloses "a door lock structure for an electrical appliance and a cleaning machine using the same", the invention has low requirements for an electric control logic, when locking is required, a lock lever moves down to press a liftout member to move down, the liftout member drives a lock catch to rotate in the downward moving process of the liftout member, so that the upper end of the lock catch gradually cooperates with a lock hook and presses the lock hook downward, a driving mechanism drives a limiting block to move towards the liftout member and limit the position of the liftout member, thereby realizing locking; when the unlocking is needed, the driving mechanism drives the limiting block to move to cancel the position restriction on the ejection piece, and at the moment, the lock rod can move upwards under the driving of the door body to realize the unlocking; the whole process is simple and reliable and is convenient to realize.

However, the above patent uses a micro switch to feed back whether the lock rod and the lock catch are locked or not, when the driving mechanism malfunctions, the problem of mistakenly unlocking the lock rod and the lock hook may occur, or when the micro switch fails, the use of the whole door lock structure will be affected. Therefore, the door lock structure for the electric appliance and the electric appliance applying the door lock structure have lower safety and can be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to prior art's current situation, provides the higher lock structure that is used for electrical apparatus of security.

The utility model discloses the second technical problem that will solve is the current situation to prior art, provides an use to have above-mentioned lock structure's that is used for electrical apparatus, and the security is higher equally.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a door lock structure for electric appliance is composed of a main body with a functional cavity and a door body with an opening for opening or closing said functional cavity

The shell is arranged on the main body of the electric appliance and is provided with a shell wall opposite to the door body, and the shell wall is provided with a locking notch;

the first end of the lock rod is connected with the door body, the second end of the lock rod protrudes out of the door body, penetrates into the lock opening in the shell in a door locking state, and exits from the lock opening in an unlocking state;

the direction of the lock rod penetrating into the lock opening is taken as a first direction, and the direction of the lock rod retreating from the lock opening is taken as a second direction;

the shell also comprises:

the ejection piece can move back and forth along the first direction or the second direction;

the lock catch is connected with the ejection piece and unlocks or locks the lock rod along with the movement of the ejection piece;

the limiting block is arranged beside the ejection piece in a reciprocating manner and used for limiting or relieving the limitation of the ejection piece;

the driving mechanism is used for driving the limiting block to move back and forth; and

the first switch is in electric signal connection with a control circuit of the electric appliance, and when the lock catch and the lock rod are locked or unlocked, the switch of the first switch is directly or indirectly triggered by the limit block;

it is characterized by also comprising

The second switch is arranged in the shell, is connected with a control circuit of an electric appliance through an electric signal, and is triggered by the ejecting piece when the lock catch and the lock rod are unlocked or locked.

The matching structure of the limiting block and the first switch can be various, and preferably, the matching structure further comprises an acting element arranged between the limiting block and the first switch, the middle part of the acting element is rotatably arranged in the shell, the first end part of the acting element is matched with the limiting block to act, and the second end part of the acting element is matched with the first switch to act;

when the lock catch and the lock rod are locked or unlocked, correspondingly, the first end part of the acting piece is far away from or abutted against the limiting block, and the second end part of the acting piece is far away from or triggered by the first switch.

Through setting up the effect piece, the stopper acts on the effect piece earlier, acts on first switch through the effect piece, is favorable to the space in the make full use of casing, and is rationally distributed. Or the limit block can directly act on the first switch.

The acting element can be in various structures, preferably, the extending direction of the acting element when the acting element is not acted by the limiting block is basically parallel to the back and forth moving direction of the limiting block, and the middle part of the acting element is provided with a rotating shaft which extends along the first direction or the second direction and is rotatably arranged in the shell. Therefore, the acting piece is integrally in a long strip shape, so that the space in the shell is fully utilized, and the size of the door lock structure is reduced.

In order to reduce the volume of the door lock structure, the limiting block is provided with an acting part extending along the first direction or the second direction, the acting part is provided with a first inclined surface, and the first end part of the acting element is provided with a second inclined surface opposite to the first inclined surface;

or/and the second end part of the acting piece is provided with an acting arc surface which is arranged opposite to the trigger part of the first switch.

Through setting up first inclined plane, second inclined plane, can lean on more closely between the first end of effect portion and effect like this to be favorable to reducing the volume of lock structure, or/and through setting up the effect cambered surface, can lean on more closely between the second end of first switch and effect like this, thereby be favorable to reducing the volume of lock.

In order to automatically reset the acting element, a first elastic element is arranged between the acting element and the shell, and the first elastic element has the tendency that the second end part of the acting element is far away from the first switch. When the limiting block is far away from the acting piece, the acting piece automatically resets under the action of the first elastic piece and returns to the state that the second end part of the acting piece is far away from the second switch.

The first switch and the second switch may have various structures, and preferably, each of the first switch and the second switch includes

A housing;

a fixed contact;

the trigger part is movably arranged on the shell and is matched with the corresponding ejector piece or the acting piece to act; and

one end of the metal elastic sheet is connected with the trigger part, the other end of the metal elastic sheet is restrained on the inner wall of the shell, and the middle part of the metal elastic sheet is provided with a movable contact which is in contact with or disconnected from the fixed contact.

The first switch and the second switch may be micro switches.

The driving mechanism may have various structures, and preferably, the driving mechanism includes an electromagnet having an armature that is switched between a power-off state and a power-on state to reciprocate, and the armature is connected to the stopper. The driving mechanism can also be driven by a cylinder, hydraulic pressure and the like.

In order to enable the limiting block to be close to the ejection piece, a second elastic piece which enables the limiting block to always keep moving towards the direction close to the ejection piece is arranged on the shell. Under the effect of second elastic component, be favorable to the stopper to be close to ejecting piece.

In order to unlock the lock rod and the lock catch when the limit function of the limit block on the ejection piece is removed, the lock device further comprises a third elastic piece arranged in the shell, wherein the third elastic piece acts on the ejection piece and enables the ejection piece to always keep the trend of moving along the second direction. Through setting up the third elastic component, when the limiting effect to the liftout piece was got rid of to the stopper, under the effect of third elastic component, liftout piece rebound, thereby the hasp clockwise rotation with the C shape latch hook phase separation of locking lever, locking lever rebound, the door body is opened.

The locking structure of the locking rod and the lock catch can be various, and preferably, the second end of the locking rod is provided with a C-shaped locking hook;

the lock catch is of a C-shaped structure, and the opening direction of the lock catch is opposite to the opening direction of the C-shaped lock hook of the lock rod; the middle part of the lock catch can be rotatably arranged on the shell, and one end of the lock catch, which is far away from the lock opening, is restrained on the side wall of the ejecting piece; the other end of the lock catch adjacent to the lock opening is located beside the ejecting piece in the unlocking state, and in the door locking state, under the action that the lock rod abuts against the ejecting piece along the first direction, the other end of the lock catch adjacent to the lock opening gradually deflects towards the lock rod along with the movement of the ejecting piece along the first direction until entering the opening of the C-shaped lock hook and being mutually buckled to be locked. When the ejection piece moves downwards, the lock catch deflects to be connected with the lock rod, and at the moment, the door body of the electric appliance cannot be opened. The lock rod and the lock hook can also adopt other structures, for example, the lock rod and the lock hook can also be locked by magnetic attraction, the lock hole is inserted into the lock tongue and the like.

The locking and unlocking structures of the ejector piece and the limiting block can be various, preferably, the middle of the ejector piece is provided with an open slot which is opened towards the limiting block, the limiting block stretches into or is far away from the open slot, correspondingly, and the ejector piece is limited or is relieved from being limited. The limiting block is directly locked or unlocked with the ejection piece, so that the number of parts is reduced. The locking or unlocking of the limiting block and the ejector piece can be realized indirectly through other parts.

Preferably, the limiting block is provided with a positioning groove capable of limiting the limiting block at the end position of the moving stroke, one side of the ejecting piece is provided with a positioning needle capable of being matched with the positioning groove to limit the position of the limiting block, and one end of the positioning needle can be inserted into the positioning groove in a sliding manner. By adopting the structure, after the ejector moves along the first direction, the limiting block moves towards the ejector, at the moment, the positioning needle is matched with the positioning groove, the limiting state of the limiting block on the ejector is kept, and the locking state of the door lock structure is maintained; when the electric appliance needs to open the door, namely the ejector moves along the second direction, the limiting block is far away from the ejector, at the moment, the positioning needle is matched with the positioning groove, the limiting state of the limiting block on the ejector is cancelled, the ejector is allowed to move along the second direction, and therefore unlocking is achieved.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: an electric appliance applied with the door lock structure for the electric appliance is characterized in that: the electric appliance is one of a steam box, an oven, a microwave oven, a disinfection cabinet and a cleaning machine or an integrated combination of at least two of the steam box, the oven, the microwave oven, the disinfection cabinet and the cleaning machine.

The cleaning machine can be a water tank type cleaning machine, the function cavity is a cleaning cavity of the water tank type cleaning machine, the opening of the cleaning cavity faces upwards, and one edge of the door body is rotatably connected to the edge of the opening of the main body;

the shell wall is the top wall of the shell, the locking opening of the shell faces upwards, and the locking rod is arranged on the door body of the water tank type cleaning machine and is vertically opposite to the locking opening.

The washer may also be a side-opening euro-dish washer, or a drawer-type dish washer.

Compared with the prior art, the utility model has the advantages of: through setting up the second switch, this lock structure can come feedback locking lever and hasp through first switch and second switch jointly and lock whether to two switches respectively with ejecting piece and stopper cooperation action, also be exactly two switches correspond to the different parts of lock structure respectively, be difficult to make hasp and locking lever mistake unblock because of the malfunction of certain part wherein, when one of them switch became invalid, another switch was reserve in addition, and whole lock structure's security is higher.

The electric appliance with the door lock structure for the electric appliance has the advantage of high safety.

Drawings

Fig. 1 is a schematic perspective view of a door lock structure for an electrical appliance according to the present invention;

FIG. 2 is a schematic view of the door latch structure of FIG. 1 with a portion of the housing removed;

FIG. 3 is another schematic view of the door latch structure of FIG. 1 with a portion of the housing removed;

FIG. 4 is a schematic view from another angle of FIG. 3;

FIG. 5 is an assembly view of the limiting block, the driving mechanism, the acting element and the first switch according to the embodiment of the present invention;

fig. 6 is a schematic view of fig. 5 from another angle.

Fig. 7 is a schematic perspective view of a water tank type cleaning machine to which a door lock structure for an electric appliance according to an embodiment of the present invention is applied;

fig. 8 is an enlarged schematic view of a portion a of fig. 7.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, a preferred embodiment of the door lock structure for an electric appliance according to the present invention is shown.

The electric appliance comprises a main body 8 with a function cavity 81 and a door body 9 capable of opening and closing an opening of the function cavity 81.

The door lock structure for the electric appliance comprises a shell 1, a lock rod 2 entering and exiting the shell 1, an ejection piece 3, a lock catch 4, a limiting block 5, a driving mechanism, a first switch 100, a second switch 200, an acting piece 300, a first elastic piece 400, a second elastic piece 500, a third elastic piece 600 and the like, wherein the ejection piece 3, the lock catch 4, the limiting block 5, the driving mechanism, the first switch 400, the second switch 200, the acting piece 300, the first elastic piece 400, the second elastic piece 500 and the third elastic piece 600 are arranged in the shell 1.

The housing 1 is provided on a main body 8 of an electric appliance, and has a housing wall opposite to a door body 9, and the housing wall has a locking notch 11.

The first end of the lock rod 2 is connected with a door body 9 of the electric appliance, the second end of the lock rod protrudes out of the door body 9, penetrates into a lock opening 11 on the shell 1 in a door locking state, and exits from the lock opening 11 in an unlocking state; the direction of the lock rod 2 penetrating into the lock opening 11 is taken as a first direction, and the direction of the lock rod 2 retreating from the lock opening 11 is taken as a second direction; the second end of the locking lever 2 has a C-shaped locking hook 21.

The ejector 3 can move back and forth in the first direction or the second direction; the middle part of the ejecting part 3 is provided with an open slot 31 which is opened towards the limiting block 5, and the limiting block 5 extends into or is far away from the open slot 31, correspondingly, the ejecting part 3 is limited or the limitation of the ejecting part 3 is released.

The locker 4 is connected to the ejector 3 and is unlocked or locked from the locking bar 2 as the ejector 3 moves. In this embodiment, the latch 4 is in a C-shaped structure and the opening direction is opposite to the opening direction of the C-shaped latch hook 21 of the lock rod 2; the middle part of the lock catch 4 is rotatably arranged on the shell 1, and one end 42 of the lock catch 4 far away from the lock notch 11 is restrained on the side wall of the ejecting piece 3; the other end 43 of the latch 4 adjacent to the locking notch 11 is located beside the ejector 3 in the unlocking state, and in the door locking state, under the action that the lock rod 2 presses against the ejector 3 along the first direction, the other end 43 of the latch 4 adjacent to the locking notch gradually deflects towards the lock rod 2 along with the movement of the ejector 3 along the first direction until entering the opening of the C-shaped lock hook 21 and being mutually buckled to be locked. The matching structure of the lock catch 4 and the shell 1 is the same as that in the application number CN201910933585.5, namely, a door lock structure for an electric appliance and a cleaning machine applying the door lock structure.

The limiting block 5 can be arranged at the side of the ejecting piece 3 in a reciprocating manner and is used for limiting or relieving the limiting of the ejecting piece 3; the stopper 5 has an acting part 51 extending in the first direction or the second direction, the acting part 51 has a first inclined surface 511, and the first end 301 of the acting member 300 has a second inclined surface 301a opposite to the first inclined surface 511; the limiting block 5 is provided with a positioning groove 52 which can limit the limiting block at the end position of the moving stroke, one side of the ejector 3 is provided with a positioning needle 7 which can be matched with the positioning groove 52 to limit the position of the limiting block 5, and one end of the positioning needle 7 can be inserted into the positioning groove 52 in a sliding manner. The matching structure of the limiting block 5 and the positioning pin 7 is the matching structure of the slider and the positioning pin of the door lock structure for electric appliances and the cleaning machine with the door lock structure in CN201910933585.5, the door lock structure further comprises a fourth elastic part 700 for positioning and passing, the fourth elastic part 700 is preferably an elastic sheet, the matching structure of the fourth elastic part 700 and the positioning pin 7 is the matching structure of the fourth elastic part and the positioning pin of the door lock structure for electric appliances and the cleaning machine with the door lock structure in CN201910933585.5, and the matching structure is not specifically unfolded.

The driving mechanism is used for driving the limiting block 5 to move back and forth. Specifically, the drive mechanism includes an electromagnet having an armature 6 that is switched between a power-off state and a power-on state to reciprocate, and the armature 6 is connected to the stopper 5.

The first switch 100 is electrically connected with a control circuit of the electric appliance, and when the lock catch 4 is locked or unlocked with the lock rod 2, the switch is directly or indirectly triggered by the limit block 5.

The second switch 200 is disposed in the housing 1, electrically connected to a control circuit of the electric appliance, and triggered by the ejector 3 when the latch 4 is unlocked or locked with the lock lever 2.

The acting member 300 is disposed between the stopper 5 and the first switch 100, the middle portion of the acting member 300 is rotatably disposed in the housing 1, the first end 301 of the acting member 300 cooperates with the stopper 5, and the second end 302 of the acting member 300 cooperates with the first switch 100 to release or trigger the first switch 100. The extending direction of the acting element 300 when not being affected by the limiting block 5 is substantially parallel to the moving direction of the limiting block 5, and the middle part of the acting element 300 has a rotating shaft 303 extending along the second direction and rotatably disposed in the housing 1. The second end 302 of the acting member 300 has an acting arc surface 302a disposed opposite to the trigger part 30 of the first switch 100. In other embodiments, the pivot 303 of the acting element may also extend in the first direction.

A first resilient member 400 is provided between the acting element 300 and the housing 1, which first resilient member 400 has a tendency to move the second end 302 of the acting element 300 away from the first switch 100. The first elastic member 400 is a coil spring, and may be an elastic strip.

Each of the first switch 100 and the second switch 200 includes a housing 10, a fixed contact 20, a trigger 30, and a metal dome 40. The trigger 30 is movably provided in the housing 10 and operates in cooperation with the corresponding ejector 3 or the acting element 300. The metal elastic sheet 40 has one end connected to the trigger part 30 and the other end constrained on the inner wall of the casing 10, and has a movable contact 40a in the middle for contacting or disconnecting with the fixed contact 20. That is, in the present embodiment, the first switch 100 and the second switch 200 are dielectric switches.

The second elastic member 500 is disposed on the housing 1, and can keep the stopper 5 moving toward the ejector 3. The second elastic member 500 is a coil spring, and may be an elastic strip.

A third elastic element 600 is provided in the housing 1, which third elastic element 600 acts on the ejector 3 and keeps the ejector 3 always moving in the second direction. The third elastic member 600 may be a coil spring or an elastic strip.

As shown in fig. 7 and 8, the present embodiment further provides an electric appliance to which the door lock structure for an electric appliance is applied, wherein the electric appliance is one of a steam box, an oven, a microwave oven, a disinfection cabinet and a cleaning machine, or an integrated combination of at least two of the steam box, the oven, the microwave oven, the disinfection cabinet and the cleaning machine. In this embodiment, the cleaning machine is a water tank type cleaning machine, which may be a water tank type dish washer or a water tank type fruit and vegetable cleaning machine, the function chamber 81 is a cleaning chamber of the water tank type cleaning machine, an opening of the cleaning chamber faces upward, and one edge of the door body 9 is rotatably connected to an edge of the opening of the main body 8; the shell wall is the roof of casing, and the fore shaft 11 of casing 1 is up, and locking lever 2 sets up on the door body 9 of basin formula cleaning machine and relative in vertical with the fore shaft 11. In other embodiments, the washer may be a side-opening euro-washer or a drawer-type washer.

The operation principle and the using process of the door lock structure for electric appliances of the present embodiment are as follows.

The following description will be made by taking a water tank type cleaning machine as an example.

When the water tank type cleaning machine needs to open the door body 9, for example, when the water tank type cleaning machine enters a drying state after finishing a cleaning program, the electromagnet is controlled to be electrified by the program, the armature 6 of the electromagnet drives the limiting block 5 to move rightwards (seen from figures 2, 3, 5 and 6), and the positioning pin 7 moves clockwise to the middle from the left lower position of the limiting block 5 to limit the position of the limiting block 5. At this time, the ejecting member 3 moves upward under the elastic force of the third elastic member 600 to drive the latch 4 to rotate clockwise, the latch 4 is separated from the lock rod 2, and the door 9 (as shown in fig. 7) is opened upward for a certain distance, so that the water tank type cleaning machine can dry the cleaning product conveniently. Meanwhile, in the process that the limiting block 5 moves rightwards, the acting part 51 of the limiting block 5 acts on the acting element 300 rightwards, the acting element 300 rotates anticlockwise, the triggering part 30 of the first switch 100 moves rightwards, the movable contact 40a and the fixed contact 20 of the first switch 100 are far away from each other to break the electric connection, the water tank type cleaning machine transmits signals, and the water pump and the motor in the water tank type cleaning machine are powered off. When the ejector 3 moves upward, the trigger 30 of the second switch 200 moves rightward, and the movable contact 40a of the second switch 200 comes into contact with the fixed contact 20 to be electrically connected. The locking condition of the locking rod and the lock catch is fed back through the first switch 100 and the second switch 200 together, and the safety is high.

When the water tank type cleaning machine needs to close the door body 9, a user presses the door body 9 downwards, the lock rod 2 drives the ejection piece 3 to move downwards, the ejection piece 3 drives the lock catch 4 to rotate anticlockwise and lock with the lock rod 2, (at this time, the positioning needle 7 is in the middle of the limiting block 5, and therefore the limiting block 5 and the ejection piece 3 do not have interference). The ejector 3 contacts the trigger part 30 of the second switch 200 and drives the trigger part 30 to move leftwards, the movable contact 40a of the second switch 200 is far away from the fixed contact 20 and is disconnected from the electric connection, a signal that the lock catch 4 and the lock rod 2 are locked is provided for the water tank type cleaning machine, at the moment, the electromagnet is electrified to move backwards for a certain distance after receiving the locking signal of the lock catch 4 and the lock rod 2, the electromagnet is powered off, the positioning pin 7 moves to the upper right corner of the limiting block 5, the limiting block 5 moves leftwards under the action of the second elastic part 500 and is inserted into the open slot 31 of the ejector 3, and the positioning pin 7 moves to the leftmost position of the limiting block 5. The action member 300 rotates clockwise to make the second end 302 far away from the trigger part 30 of the first switch 100, the trigger part 30 moves leftwards, the movable contact 40a of the first switch 100 is close to the fixed contact 20 and is electrically connected with the fixed contact, so that the water tank type cleaning machine transmits a signal that the limiting block 5 is inserted into the opening groove 31 of the ejection member 3, at the moment, the circuit of the water pump and the motor inside the water tank type cleaning machine is closed, and the cleaning program of the water tank type cleaning machine can be started.

Claims (14)

1. A door lock structure for an electric appliance, the electric appliance comprises a main body (8) with a functional cavity (81) and a door body (9) capable of opening and closing an opening of the functional cavity (81), the door lock structure comprises

A housing (1) provided on a main body (8) of the electric appliance and having a housing wall opposite to the door body (9), the housing wall having a locking notch (11) formed thereon;

the first end of the lock rod (2) is connected with the door body (9), the second end of the lock rod protrudes out of the door body (9), and penetrates into a lock opening (11) on the shell (1) in a door locking state and exits from the lock opening (11) in an unlocking state;

the direction of the lock rod (2) penetrating into the lock opening (11) is taken as a first direction, and the direction of the lock rod (2) retreating from the lock opening (11) is taken as a second direction;

the shell (1) also comprises:

an ejector (3) movable back and forth in the first or second direction;

the lock catch (4) is connected with the ejection piece (3) and is unlocked or locked with the lock rod (2) along with the movement of the ejection piece (3);

the limiting block (5) is arranged beside the ejecting piece (3) in a reciprocating manner and is used for limiting or releasing the limiting of the ejecting piece (3);

the driving mechanism is used for driving the limiting block (5) to move back and forth; and

the first switch (100) is in electric signal connection with a control circuit of an electric appliance, and when the lock catch (4) and the lock rod (2) are locked or unlocked, the switch of the first switch is directly or indirectly triggered by the limit block (5);

the method is characterized in that: also comprises

The second switch (200) is arranged in the shell (1), is connected with a control circuit of an electric appliance through an electric signal, and is triggered to be switched by the ejection piece (3) when the lock catch (4) and the lock rod (2) are unlocked or locked.

2. The door lock structure for electric appliances according to claim 1, wherein: the device is characterized by further comprising an acting piece (300) arranged between the limiting block (5) and the first switch (100), wherein the middle part of the acting piece (300) is rotatably arranged in the shell (1), the first end part (301) of the acting piece (300) is matched with the limiting block (5) to act, and the second end part (302) of the acting piece (300) is matched with the first switch (100) to act so that the first switch (100) is released or triggered.

3. The door lock structure for electric appliances according to claim 2, wherein: the extending direction of the acting piece (300) when the acting piece is not limited by the limiting block (5) is basically parallel to the back-and-forth moving direction of the limiting block (5), and the middle part of the acting piece (300) is provided with a rotating shaft (303) which extends along the first direction or the second direction and is rotationally arranged in the shell (1).

4. The door lock structure for electric appliances according to claim 2, wherein: the limiting block (5) is provided with an acting part (51) extending along the first direction or the second direction, the acting part (51) is provided with a first inclined surface (511), and the first end part (301) of the acting piece (300) is provided with a second inclined surface (301 a) opposite to the first inclined surface (511);

or/and the second end (302) of the acting piece (300) is provided with an acting cambered surface (302 a) which is arranged opposite to the trigger part (30) of the first switch (100).

5. The door lock structure for electric appliances according to claim 2, wherein: further comprising a first resilient member (400) arranged between the acting member (300) and the housing (1), the first resilient member (400) having a tendency to move the second end (302) of the acting member (300) away from the first switch (100).

6. The door lock structure for electric appliances according to any one of claims 2 to 5, wherein: the first switch (100) and the second switch (200) each comprise

A housing (10);

a fixed contact (20);

a trigger part (30) which is movably arranged on the shell (10) and is matched with the corresponding ejector (3) or the acting piece (300) for action; and

one end of the metal elastic sheet (40) is connected with the trigger part (30), the other end of the metal elastic sheet is restrained on the inner wall of the shell (10), and the middle part of the metal elastic sheet is provided with a movable contact (40 a) which is in contact with or disconnected from the fixed contact (20).

7. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: the driving mechanism comprises an electromagnet, the electromagnet is provided with an armature (6) which is switched between a power-off state and a power-on state and moves in a reciprocating mode, and the armature (6) is connected with a limiting block (5).

8. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: and the shell (1) is provided with a second elastic part (500) which can enable the limiting block (5) to always keep moving trend towards the direction close to the ejection part (3).

9. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: the ejection mechanism also comprises a third elastic piece (600) arranged in the shell (1), wherein the third elastic piece (600) acts on the ejection piece (3) and enables the ejection piece (3) to always keep the trend of moving along the second direction.

10. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: the second end of the lock rod (2) is provided with a C-shaped lock hook (21);

the lock catch (4) is of a C-shaped structure, and the opening direction of the lock catch is opposite to the opening direction of the C-shaped lock hook (21) of the lock rod (2); the middle part of the lock catch (4) can be rotatably arranged on the shell (1), and one end (42) of the lock catch (4) far away from the lock opening (11) is restrained on the side wall of the ejection piece (3); the other end (43) of the lock catch (4) adjacent to the lock opening (11) is located beside the ejection piece (3) in the unlocking state, and in the door locking state, under the action that the lock rod (2) presses the ejection piece (3) along the first direction, the other end (43) of the lock catch (4) adjacent to the lock opening gradually deflects towards the lock rod (2) along with the movement of the ejection piece (3) along the first direction until entering the opening of the C-shaped lock hook (21) and being mutually buckled to be locked.

11. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: the middle part of the ejection part (3) is provided with an open slot (31) which is opened towards the limiting block (5), the limiting block (5) extends into or is far away from the open slot (31), and correspondingly, the ejection part (3) is limited or the limitation on the ejection part (3) is released.

12. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: the limiting block (5) is provided with a positioning groove (52) capable of limiting the limiting block at the end position of a moving stroke, one side of the ejector (3) is provided with a positioning needle (7) capable of being matched with the positioning groove (52) to limit the position of the limiting block (5), and one end of the positioning needle (7) can be inserted into the positioning groove (52) in a sliding mode.

13. An electric appliance to which the door lock structure for electric appliances according to any one of claims 1 to 12 is applied, characterized in that: the electric appliance is one of a steam box, an oven, a microwave oven, a disinfection cabinet and a cleaning machine or an integrated combination of at least two of the steam box, the oven, the microwave oven, the disinfection cabinet and the cleaning machine.

14. The electric appliance according to claim 13, characterized in that: the cleaning machine is a water tank type cleaning machine, the functional cavity (81) is a cleaning cavity of the water tank type cleaning machine, the opening of the cleaning cavity faces upwards, and one edge of the door body (9) is rotatably connected to the edge of the opening of the main body (8);

the conch wall is the roof of casing (1), fore shaft (11) up of casing (1), locking lever (2) set up on basin formula cleaning machine's door body (9) and with fore shaft (11) are relative in vertical.

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