CN217439730U - Door lock mechanism for household appliance and household appliance - Google Patents

Abstract

A door lock mechanism for a household appliance, comprising: the electric appliance comprises a shell (1), a lock rod (2) and an ejector (3), wherein the shell (1) is used for being connected with an electric appliance main body (100), and the top wall of the shell is provided with a vertically-through lock opening (10); the upper end of the lock rod (2) is used for being connected with an electric appliance door body (200), the lower end of the lock rod can penetrate through a lock opening (10) on the shell (1) in a vertically moving mode, penetrates through the lock opening (10) to be located in the shell (1) in a door locking state, and penetrates out of the lock opening (10) to be located on the shell (1) in an unlocking state; the ejection piece (3) is arranged in the shell (1) in a vertically movable manner and is positioned below the lock opening (10), and the top of the ejection piece (3) is opposite to the lower end of the lock rod (2); the device also comprises a telescopic piece (4), a transmission piece (5) and a limiting piece (6). The application also discloses a household appliance with the door lock mechanism. Compared with the prior art, this application can reduce the impact force to the door body when unblanking.

Description

Door lock mechanism for household appliance and household appliance

Technical Field

The utility model belongs to the technical field of domestic appliance, concretely relates to a lock mechanism and domestic appliance for domestic appliance.

Background

At present, a door lock mechanism for a household appliance is disclosed in patent application CN201910933576.6, which is a structure disclosed in "a door lock structure for an appliance and a cleaning machine using the same" (application publication No. CN112576111A), and includes a housing, a lock rod, an ejector, a lock catch and a driving mechanism.

Also as disclosed in patent No. ZL202010854936.6, a door lock mechanism for an electric appliance and a dishwasher having the door lock mechanism (publication No. CN112112500B), the structure includes a housing having a locking notch on a top wall; a locking bar having a C-shaped hook portion; the pressing block can be arranged below the locking notch in a vertically moving manner; a first elastic member acting on the press block; the locking hook can be rotatably connected in the shell, the opening direction of the locking hook is opposite to that of the hook part, the lower end of the locking hook is restrained below the top of the pressing block, the upper end of the locking hook is positioned beside the pressing block in an unlocking state, and a limiting structure is arranged on the peripheral wall of the locking hook; the locking mechanism further comprises a second elastic piece acting on the locking hook and an elastic piece matched with the limiting structure.

Among the prior art, the below of ejecting piece is equipped with more and is used for driving ejecting piece rebound and realizes the extensible member of unblanking, when needs unblank, extensible member direct action is on ejecting piece, and realizes opening of the door body, and this in-process, the effort of extensible member can realize opening the door, nevertheless has certain impact force to the door body simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem is to prior art's current situation, provides a lock mechanism for domestic appliance to can reduce the impact force to the door body when unblanking.

The second technical problem to be solved by the present invention is to provide a household appliance with the above-mentioned door lock mechanism.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a door lock mechanism for a household appliance, comprising:

the shell is used for being connected with the electric appliance main body, and a lock notch which is communicated up and down is formed in the top wall of the shell;

the upper end of the lock rod is used for being connected with the electric appliance door body, the lower end of the lock rod can penetrate through the lock opening on the shell in a vertically moving mode, penetrates through the lock opening in a door locking state and is positioned in the shell, and penetrates through the lock opening in an unlocking state and is positioned on the shell;

the ejection piece is arranged in the shell in a vertically moving mode and is positioned below the lock opening, and the top of the ejection piece is opposite to the lower end of the lock rod;

it is characterized by also comprising:

the telescopic piece is arranged in the shell in a vertically telescopic manner, is positioned obliquely below the ejection piece and is staggered with the ejection piece;

the transmission piece is arranged in the shell and is of a C-shaped structure with an upward opening, the middle part of the transmission piece can rotate and is constrained on the shell in a vertically moving manner, and the transmission piece is positioned above the telescopic piece; the first end part of the transmission part can rotate and is constrained at the bottom of the ejection part in a horizontally moving manner, the transmission part moves downwards to a door locking position under the action of the downward-moving ejection part in a door locking state, and the second end part of the transmission part deflects to the side of the ejection part towards the ejection part under the action of the telescopic part and is adjacent to or attached to the side wall of the ejection part, so that the opening of the transmission part is opposite to the transmission part in the door locking state; in the unlocking state, the transmission member drives the ejection member to move upwards to the unlocking position under the action of the telescopic member, and the second end part of the transmission member deflects towards the ejection member to expose the opening upwards;

the limiting part is arranged in the shell in a vertically movable mode and located beside the ejecting part, the limiting part is limited above the transmission part in a door locking state, and the bottom surface of the limiting part abuts against the second end part of the transmission part, so that the transmission part is maintained at a door locking position; under the state of unlocking, the restraint of the limiting piece is removed and the limiting piece moves upwards under the action of the transmission piece, and the bottom of the limiting piece extends into the opening of the transmission piece.

The limiting part can be restrained by means of magnetic attraction and the like, and preferably, the door lock further comprises a driving part for restraining the limiting part, wherein the output end of the driving part can be movably located in the shell, and can be movably moved to the position above the limiting part and abut against the top surface of the limiting part in the door locking state; under the unlocking state, the output end of the driving piece moves to the side of the limiting piece to remove the constraint of the limiting piece.

Preferably, the output end of the driving member is disposed on the limiting member in a manner of reciprocating in the horizontal direction.

The above-mentioned extensible member can be the integrative piece that can stretch out and draw back the removal, like the spring of vertical setting, preferably, the extensible member is including kicking block and first elastic component, the kicking block can be located the casing with reciprocating to be located the below of above-mentioned driving medium, first elastic component is used in the bottom surface of above-mentioned kicking block, so that the kicking block has the trend of rebound all the time. The first elastic member may be a conventional elastic member such as a spring.

In the above scheme, for realizing that the first end of driving medium can rotate and retrain the bottom of liftout piece with horizontal migration, preferably, the bottom of liftout piece is equipped with along the bar hole of liftout piece, locating part's arrangement direction horizontal extension, be equipped with the first round pin axle that can insert in above-mentioned bar hole on the first end of driving medium. Of course, the strip-shaped hole can also be arranged on the transmission part, and the first pin shaft is arranged at the bottom of the ejector.

In order to realize that the middle part of the transmission member can rotate and is constrained on the shell in a vertically moving mode, preferably, the middle part of the transmission member is provided with a second pin shaft horizontally extending along a direction perpendicular to the arrangement direction of the ejection member and the limiting member, and the inner wall of the shell is provided with a first limiting groove extending vertically and allowing the end part of the second pin shaft to be inserted into the first limiting groove.

In order to further limit the moving path of the transmission member, preferably, a third pin shaft parallel to the second pin shaft is arranged on the second end of the transmission member, a second limit groove into which the end of the third pin shaft of the transmission member is inserted in the door-locking state is arranged on the side wall of the first limit groove, and the second limit groove has a limit top surface which is inclined upward and is engaged with the side wall of the first limit groove, so that the third pin shaft moves to the first limit groove along the second limit groove, and the second end of the transmission member deflects to the unlocking state back to the ejection member in the door-locking state.

Further, the limiting part is a rod-shaped body which is vertically arranged, and the bottom surface of the rod-shaped body inclines downwards.

In the above solutions, in order to achieve the locking of the door lock mechanism, it is preferable that a lock catch is further included, which is movably located in the housing, and the lock catch is driven by the downward moving ejector to move to a door locking state in which the lock catch is locked with the lower end of the lock rod.

Preferably, the lower end of the lock rod is provided with a C-shaped hook part, the lock catch is of an open C-shaped structure, the open direction of the lock catch is opposite to the C-shaped opening direction of the hook part of the lock rod, the middle part of the lock catch is rotatably connected to the shell, the lower end of the lock catch is restrained on the side wall of the ejector, the upper end of the lock catch is located beside the ejector in an unlocking state, and the upper end of the lock catch deflects to be buckled with the hook part towards the direction of the lock rod under the action of the ejector in a door locking state; the door lock mechanism also comprises a second elastic piece which is positioned in the shell and acts on the lock catch, so that the upper end of the lock catch always has the tendency of deflecting back to the lock rod.

In each of the above aspects, in order to improve the safety of the household appliance, it is preferable that the household appliance further includes a first switch member and a second switch member, both of which are disposed in the housing and located one above the other on the moving path of the ejector, and the first switch member is triggered when the ejector moves to the unlocking position, and the second switch member is triggered when the ejector moves to the door locking position. Thus, it is possible to determine whether the door lock mechanism is in the locked state or the unlocked state.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the utility model provides a domestic appliance with as above door lock mechanism, its characterized in that is including the electrical apparatus main part and the electrical apparatus door body, the electrical apparatus main part has the open working chamber in top, the edge rotation of electrical apparatus door body one side is connected in the edge at electrical apparatus main part top, on the lateral wall of electrical apparatus main part was located to the casing, and the fore shaft arranged up, the locking lever just corresponds the fore shaft setting on locating the electrical apparatus door body.

Preferably, the household appliance is a washing machine capable of washing tableware or/and fruits and vegetables.

Compared with the prior art, the utility model has the advantages of: by designing the door lock mechanism into a structure with a shell, a lock rod, an ejection piece, a telescopic piece, a transmission piece and a limiting piece, when the lock rod is inserted into a lock opening of the shell, the ejection piece moves downwards to a door locking position under the action of the lock rod and is restrained at the door locking position through the transmission piece, the limiting piece and the telescopic piece; when the restraint on the locating part is removed, the transmission part moves upwards and deflects under the upward acting force of the telescopic part, so that the ejection part is driven to move upwards to the unlocking position. Above the in-process of unblanking, because the ascending effort of extensible member passes through the driving medium and transmits to the liftout piece, and then the drive liftout piece rebound and unblank, so can reduce the impact force to the door body when unblanking. And this application can realize the spacing to the ejector under the lock door state, improves the stability of lock mechanism structure.

Drawings

Fig. 1 is a sectional view of a door lock mechanism in a door locking state according to an embodiment of the present invention;

fig. 2 is a sectional view of the door lock mechanism in an unlocked state according to the embodiment of the present invention;

fig. 3 is an exploded perspective view of the door lock mechanism in the door locking state according to the embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a transmission member according to an embodiment of the present invention;

fig. 5 is a schematic view of a local structure of a household appliance in an embodiment of the present invention.

Detailed Description

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

As shown in fig. 1-5, for the preferred embodiment of a door lock mechanism for a household electrical appliance and a household electrical appliance of the present invention, the household electrical appliance is a cleaning machine capable of cleaning tableware or/and fruits and vegetables, the cleaning machine comprises a box-shaped electrical appliance main body 100 and an electrical appliance door body 200, the electrical appliance main body 100 has a working chamber with an open top, and the edge of one side of the electrical appliance door body 200 is rotatably connected to the edge of the top of the electrical appliance main body 100.

The door lock mechanism comprises a shell 1, a lock rod 2, an ejector 3, a telescopic part 4, a transmission part 5, a limiting part 6, a driving part 7, a lock catch 8, a first switch part 91 and a second switch part 92.

The casing 1 is disposed on a side wall of the electric appliance main body 100, and a lock 10 penetrating up and down is opened on a top wall of the casing 1.

The lock rod 2 is vertically arranged on the electric appliance door body 200 and is arranged corresponding to the lock notch 10. The upper end of the lock rod 2 is connected to the electric appliance door 200, and the lower end thereof can vertically move through the lock opening 10 of the casing 1, and penetrate into the lock opening 10 to be located in the casing 1 in the door locking state, and penetrate out of the lock opening 10 to be located on the casing 1 in the door unlocking state.

The ejector 3 is disposed in the housing 1 so as to be movable up and down, and is located right below the locking notch 10, and the top of the ejector 3 is opposite to the lower end of the lock lever 2. The bottom of the ejector 3 is provided with a strip-shaped hole 31 extending horizontally in the left-right direction.

The retractable member 4 is provided in the housing 1 so as to be vertically retractable, and is located below the right side of the ejector member 3 so as to be displaced from each other. In this embodiment, the extensible member 4 includes a top block 41 and a first elastic member 42, the top block 41 is disposed in the housing 1 in a vertically movable manner, the first elastic member 42 is a spring vertically disposed below the top block 41, and a top end of the first elastic member 42 acts on a bottom surface of the top block 41, so that the top block 41 always tends to move upward.

The transmission piece 5 is arranged in the shell 1 and has a C-shaped structure with an upward opening 50, the middle part of the transmission piece 5 can rotate and is constrained on the shell 1 in a vertically moving manner and is positioned above the top block 41; the first end 51 of the driving member 5 is provided with a first pin 53 capable of being inserted into the strip-shaped hole 31 of the ejector 3, so that the first end 51 of the driving member 5 can be constrained at the bottom of the ejector 3 in a rotating and horizontally moving manner. As shown in fig. 1, in the door locking state, the transmission member 5 moves downward to the door locking position under the action of the downward moving ejector 3, and the second end 52 of the transmission member 5 deflects to the side of the ejector 3 toward the ejector 3 under the action of the telescopic member 4 and is adjacent to or attached to the side wall of the ejector 3, so that the opening 50 of the transmission member 5 is opposite to the transmission member 5 in the door locking state. As shown in fig. 2, in the unlocked state, the driving member 5 drives the ejector 3 to move upward to the unlocked position under the action of the telescopic member 4, and the second end 52 of the driving member 5 deflects away from the ejector 3 and exposes the opening 50 upward. In this embodiment, the middle of the transmission member 5 is provided with a second pin 54 horizontally extending along a direction (i.e., the front-back direction in fig. 1) perpendicular to the arrangement direction of the ejecting member 3 and the limiting member 6, and the inner wall of the casing 1 is provided with a first limiting groove 11 extending up and down and allowing the end of the second pin 54 to be inserted therein. Meanwhile, a third pin shaft 55 parallel to the second pin shaft 54 is arranged on the second end portion 52 of the transmission member 5, a second limit groove 12 into which the end portion of the third pin shaft 55 of the transmission member 5 is inserted in the door-locking state is arranged on the side wall on the left side of the first limit groove 11, and the second limit groove 12 is provided with a limit top surface 121 which inclines upwards from left to right and is jointed with the side wall of the first limit groove 11, so that the third pin shaft 55 moves to the first limit groove 11 along the limit top surface, and the second end portion 52 of the transmission member 5 deflects to the unlocking state back to the ejector 3 in the door-locking state is realized.

The limiting member 6 is disposed in the housing 1 to be capable of moving up and down and located at the right side of the ejecting member 3, the limiting member 6 is constrained above the driving member 5 in the door locking state, and the bottom surface of the limiting member 6 abuts against the second end 52 of the driving member 5, so that the driving member 5 is maintained at the door locking position; in the unlocked state, the restriction of the limiting member 6 is released and moves upward under the action of the transmission member 5, and the bottom of the limiting member 6 extends into the opening 50 of the transmission member 5. In this embodiment, the position-limiting member 6 is a rod-shaped body vertically arranged, and the bottom surface of the rod-shaped body is inclined downward.

The driving member 7 is used for restraining the limiting member 6, and the output end 71 of the driving member 7 can be movably located in the housing 1, and can move above the limiting member 6 and abut against the top surface of the limiting member 6 in the door locking state; in the unlocked state, the output end 71 of the driving member 7 moves to the side of the limiting member 6 to release the constraint of the limiting member 6. In this embodiment, the output end 71 of the driving member 7 is disposed on the stopper 6 so as to be capable of reciprocating in the horizontal direction. And driving piece 7 is the present electromagnetic assembly, and this electromagnetic assembly has coil and can be at the iron core that the coil circular telegram state retracted, and the concrete structure and the theory of operation of electromagnetic assembly are prior art, do not describe herein again.

The latch 8 is movably located in the housing 1, and the latch 8 is driven by the downward-moving ejector 3 to move to a door-locking state locked with the lower end of the lock rod 2. In this embodiment, the lower end of the lock rod 2 has a C-shaped hook 21, the latch 8 is a C-shaped structure with an opening 80, the opening direction of the latch 8 is opposite to the C-shaped opening direction of the hook 21 of the lock rod 2, the middle part of the latch 8 is rotatably connected to the housing 1, the lower end of the latch 8 is constrained on the side wall of the ejector 3, the upper end of the latch 8 is located beside the ejector 3 in an unlocking state, and under the action of the ejector 3, the upper end of the latch 8 deflects to be buckled with the hook 21 in the direction of the lock rod 2 in a door locking state; the door lock mechanism further comprises a second resilient member 81, the second resilient member 81 being located within the housing 1 and acting on the catch 8 such that the upper end of the catch 8 always has a tendency to deflect away from the locking bar 2.

The first switch 91 and the second switch 92 are disposed in the housing 1 and located on the moving path of the ejector 3 one above the other, and the first switch 91 is triggered when the ejector 3 moves to the unlocking position, and the second switch 92 is triggered when the ejector 3 moves to the door locking position. The structure of each switch element can refer to the prior art, and is not described herein.

The working principle of the door lock mechanism in the embodiment is as follows:

and (3) opening the door: the electric appliance door body 200 is in an open state, at this time, the lock rod 2 is not inserted into the lock opening 10 of the casing 1, the top block 41 is located at the uppermost end under the action of the first elastic element 42 and props against the transmission element 5, at this time, the third pin shaft 55 on the second end 52 of the transmission element 5 and the second pin shaft 54 on the middle part are constrained in the first limiting groove 11 one on top of the other, the first end of the transmission element 5 is constrained on the ejector 3, so that the transmission element 5 is constrained at the left, the right, the upper and the lower sides, and the ejector 5 is constrained at an unlocking position and cannot move. First switch 91, second switch 92 make the lock mechanism of this application have two sets of signals, and under the state of opening the door, two sets of signals all break off, and domestic appliance can not start work.

A door closing state: when the electric appliance door body 200 is in a closed state, the lower end of the lock rod 2 is inserted into the lock opening 10 of the shell 1, the ejector 3 moves downwards under the pushing of the lock rod 2, and the lock catch 8 rotates under the driving of the ejector 3 and is buckled with the lower end of the lock rod 2, so that the lock of the door lock is realized. The driving member 5 overcomes the elastic force of the first elastic member 42 to move downward under the action of the downward-moving ejector 3, and the second end of the driving member 5 is biased to rotate toward the ejector 3 and is limited by the limiting member 6, so that the ejector 5 is constrained at the door locking position and cannot move upward. When the door is closed and the door lock mechanism is locked, the two groups of signals are closed, and the household appliance can be started to work.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present application to describe various example structural portions and elements of the present application, but are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the embodiments disclosed herein may be arranged in different orientations, these directional terms are used for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to directions opposite or consistent with the direction of gravity.

Claims (13)

1. A door lock mechanism for a household appliance, comprising:

the shell (1) is used for being connected with the electric appliance main body (100), and the top wall of the shell is provided with a vertically through locking notch (10);

the upper end of the lock rod (2) is connected with the electric appliance door body (200), the lower end of the lock rod can vertically move to penetrate through the lock opening (10) on the shell (1), penetrate into the lock opening (10) to be positioned in the shell (1) in a door locking state, and penetrate out of the lock opening (10) to be positioned on the shell (1) in an unlocking state;

the ejection piece (3) is arranged in the shell (1) in a vertically movable mode and is positioned below the lock opening (10), and the top of the ejection piece (3) is opposite to the lower end of the lock rod (2);

it is characterized by also comprising:

telescopic pieces (4) which are arranged in the shell (1) in a vertically telescopic manner, are positioned at the oblique lower part of the ejection piece (3) and are staggered with each other;

the transmission piece (5) is arranged in the shell (1) and is of a C-shaped structure with an upward opening (50), the middle part of the transmission piece (5) can rotate and is constrained on the shell (1) in a vertically moving mode and is positioned above the telescopic piece (4); the first end part (51) of the transmission piece (5) can rotate and is constrained at the bottom of the ejection piece (3) in a horizontally moving mode, the transmission piece (5) moves downwards to a door locking position under the action of the downward-moving ejection piece (3) in a door locking state, and the second end part (52) of the transmission piece (5) deflects to the side of the ejection piece (3) towards the ejection piece (3) under the action of the telescopic piece (4) and is adjacent to or attached to the side wall of the ejection piece (3), so that the opening (50) of the transmission piece (5) is opposite to the transmission piece (5) in the door locking state; under the unlocking state, the transmission piece (5) drives the ejection piece (3) to move upwards to the unlocking position under the action of the telescopic piece (4), and the second end part (52) of the transmission piece (5) deflects back to the ejection piece (3) to expose the opening (50) upwards;

the limiting piece (6) is arranged in the shell (1) in a vertically movable mode and located beside the ejecting piece (3), the limiting piece (6) is constrained above the transmission piece (5) in a door locking state, and the bottom surface of the limiting piece (6) abuts against the second end portion (52) of the transmission piece (5), so that the transmission piece (5) is maintained at a door locking position; under the unlocking state, the restraint of the limiting piece (6) is released and moves upwards under the action of the transmission piece (5), and the bottom of the limiting piece (6) extends into the opening (50) of the transmission piece (5).

2. The door lock mechanism according to claim 1, wherein: the door lock further comprises a driving part (7) used for restraining the limiting part (6), wherein an output end (71) of the driving part (7) can be movably positioned in the shell (1), and can be movably moved to the position above the limiting part (6) and abut against the top surface of the limiting part (6) in a door locking state; in the unlocking state, the output end (71) of the driving piece (7) moves to the side of the limiting piece (6) to release the constraint of the limiting piece (6).

3. The door lock mechanism according to claim 2, wherein: the output end (71) of the driving piece (7) is arranged on the limiting piece (6) in a manner of reciprocating along the horizontal direction.

4. The door lock mechanism according to claim 1, wherein: the telescopic piece (4) comprises a top block (41) and a first elastic piece (42), the top block (41) can be arranged in the shell (1) in a vertically moving mode and is located below the transmission piece (5), and the first elastic piece (42) acts on the bottom face of the top block (41) so that the top block (41) always has the upward moving trend.

5. The door lock mechanism according to claim 1, wherein: the bottom of liftout (3) is equipped with along the arrangement direction horizontally extending's of liftout (3), locating part (6) bar hole (31), be equipped with on the first end (51) of driving medium (5) and insert first round pin axle (53) in above-mentioned bar hole (31).

6. The door lock mechanism according to claim 1, wherein: the middle part of driving medium (5) is equipped with along with liftout piece (3), locating part (6) arrange the second round pin axle (54) that the direction looks vertically direction level extends, be equipped with on the inner wall of casing (1) extend from top to bottom, supply the tip of second round pin axle (54) to insert first spacing groove (11) wherein.

7. The door lock mechanism according to claim 6, wherein: the second end part (52) of the transmission part (5) is provided with a third pin shaft (55) parallel to the second pin shaft (54), the side wall of the first limiting groove (11) is provided with a second limiting groove (12) for inserting the end part of the third pin shaft (55) of the transmission part (5) into the second limiting groove, the second limiting groove (12) is provided with a limiting top surface (121) which is inclined upwards and is jointed with the side wall of the first limiting groove (11) so that the third pin shaft (55) can move to the first limiting groove (11) along the limiting top surface, and therefore the second end part (52) of the transmission part (5) deflects back to the ejector part (3) to the unlocking state in the door locking state.

8. The door lock mechanism according to claim 7, wherein: the limiting piece (6) is a rod-shaped body which is vertically arranged, and the bottom surface of the rod-shaped body inclines downwards.

9. The door lock mechanism according to any one of claims 1 to 8, wherein: the door lock also comprises a lock catch (8) which can be movably positioned in the shell (1), and the lock catch (8) is driven by the downwards moving ejection piece (3) to move to a door locking state locked with the lower end of the lock rod (2).

10. The door lock mechanism according to claim 9, wherein: the lower end part of the lock rod (2) is provided with a C-shaped hook part (21), the lock catch (8) is of a C-shaped structure with an opening (80), the opening direction of the lock catch (8) is opposite to the C-shaped opening direction of the hook part (21) of the lock rod (2), the middle part of the lock catch (8) can be rotatably connected to the shell (1), the lower end of the lock catch (8) is restrained on the side wall of the ejection part (3), the upper end of the lock catch (8) is positioned beside the ejection part (3) in an unlocking state, and under the door locking state, under the action of the ejection part (3), the upper end of the lock catch (8) deflects towards the direction of the lock rod (2) to be buckled with the hook part (21); the door lock mechanism further comprises a second elastic piece (81), wherein the second elastic piece (81) is positioned in the shell (1) and acts on the lock catch (8), so that the upper end of the lock catch (8) always has the tendency of deflecting back to the lock rod (2).

11. The door lock mechanism according to any one of claims 1 to 8, wherein: the door unlocking device further comprises a first switch piece (91) and a second switch piece (92), wherein the first switch piece (91) and the second switch piece (92) are arranged in the shell (1) and are located on the moving path of the ejection piece (3) one above the other, the first switch piece (91) is triggered when the ejection piece (3) moves to the unlocking position, and the second switch piece (92) is triggered when the ejection piece (3) moves to the door locking position.

12. The household appliance with the door lock mechanism according to any one of claims 1 to 11 is characterized by comprising an appliance body (100) and an appliance door body (200), wherein the appliance body (100) is provided with a working cavity with an open top, the edge of one side of the appliance door body (200) is rotatably connected to the edge of the top of the appliance body (100), the shell (1) is arranged on the side wall of the appliance body (100), the lock notch (10) is arranged upwards, and the lock rod (2) is arranged on the appliance door body (200) and corresponds to the lock notch (10).

13. The household appliance according to claim 12, wherein: the household appliance is a cleaning machine capable of cleaning tableware or/and fruits and vegetables.

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