CN220487310U - Door lock device of household appliance - Google Patents

Abstract

The utility model relates to the technical field of door locks, in particular to a door lock device of a household appliance, which comprises a shell, a locking piece, a limiting strip and a driver, wherein the shell is internally divided into a movable cavity and a limiting cavity, the locking piece is arranged in the movable cavity, one end of the locking piece is in swing connection with the shell, the other end of the locking piece is a locking end, the locking end is used for locking a door locking strip, the limiting strip and the driver are arranged in the limiting cavity, one end of the limiting strip is a limiting end, the driver is connected with the other end of the limiting strip, the driver is used for driving the limiting strip to move, the limiting end is moved to one side of the locking piece, the limiting locking piece swings, the locking end is abutted against the locking end, the locking end swings to lock the door locking strip, then the limiting end stretches out to one side of the locking piece, the limiting end is used for limiting the locking piece swings to reset, and the door locking strip is prevented from pulling the locking piece to swing so as to be separated from the limiting end, the door locking strip can be fixedly limited at the locking end, and the door body can be prevented from being pulled by a user to be pulled by mistake.

Description

Door lock device of household appliance

Technical Field

The utility model relates to the technical field of door locks, in particular to a door lock device of a household appliance.

Background

A dishwasher is a device for automatically washing dishes such as bowls, chopsticks, plates, dishes, knives, forks, etc. The dish washer mainly comprises a box body, a door body, a spray pipe, a cleaning bin, an upper bowl rack (bowl basket), a lower bowl rack (bowl basket), a filter screen, a water pump, a water tank, an electric heating pipe, a water supply system, a sewage disposal system, a control and display system and the like.

The door body is an important part for opening or closing the inside of the box body, and the door body is used for a user to put the bowl, the chopsticks, the dish, the knife and the fork into the inside of the box body for cleaning, or take out the bowl, the chopsticks, the dish, the knife and the fork which are placed in the inside of the box body.

In the prior art, a door lock is generally arranged at the door body, so that the door body is prevented from being opened by mistake in the working process of the dishwasher, and the dishwasher is prevented from being influenced by working. However, the door lock of the dish washer in the prior art generally has no locking function, for example, the publication number is CN216090372U, and the Chinese patent utility model is entitled "a push-pull device for a door body of a dish washer and a dish washer with the device", which is lack of locking function, and a user can pull the door body slightly hard, if the dish washer is in a working operation process, the door body is pulled away by the user by mistake, hot water in the dish washer is easily thrown out of the door body by a rotating part of the dish washer, and the user is injured by mistake.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present utility model is to provide a door lock device for a household appliance, in which a limiting bar is mounted on one side of a latch, a latch end swings to latch a door latch, and then the limiting bar extends to a side of the latch swinging toward the door latch, and the limiting end limits the latch to swing and reset, so as to prevent a door body from being pulled open by a user.

To achieve the purpose, the utility model adopts the following technical scheme:

a door lock device of a household appliance comprises a shell, a locking piece, a limit bar and a driver; the inner part of the shell is divided into a movable cavity and a limiting cavity; the locking piece is arranged in the movable cavity, one end of the locking piece is connected with the shell in a swinging mode, the other end of the locking piece is a locking end, and the locking end is used for locking a door locking strip; the limiting strip and the driver are installed in the limiting cavity, one end of the limiting strip is a limiting end, the driver is connected to the other end of the limiting strip, the driver is used for driving the limiting strip to move, the limiting end is enabled to move to one side, facing the door locking strip, of the locking piece to swing, and the locking piece is limited to swing.

Preferably, when the limiting end moves to one side of the locking piece, the limiting end corresponds to the middle of the locking piece.

Preferably, a sliding hole is arranged between the movable cavity and the limiting cavity, the position of the sliding hole is aligned with the limiting end, and the sliding hole is used for the limiting end to extend into the movable cavity.

Preferably, the other end of the limit strip is a sliding end; the inside of the shell is provided with a sliding groove, the sliding end is arranged in the sliding groove, the front side of the sliding end is provided with a bayonet, and the driving end of the driver can be detachably buckled with the bayonet; the rear side protrusion of sliding end has first dog, the spout protrusion has the second dog, the position of second dog with the position of first dog corresponds the setting, first dog to the distance of second dog is for spacing the limit bar withdraws from spacing the scope that the latch moved.

Preferably, a trigger block protrudes from the lower side of the sliding end; the micro switch is arranged below the sliding end, the switch of the micro switch is arranged corresponding to the position of the trigger block, and the micro switch is used for detecting the position of the sliding end.

Preferably, the locking piece comprises a locking tongue part and a swinging bracket; the lower end of the swing bracket is connected with the shell in a swing way, the lock tongue part is connected with the upper end of the swing bracket in a swing way, and the limit end can move to one side of the swing bracket; the upper end of the lock tongue part is protruded with a lock catch block, and the lock catch block is used for buckling the door lock bar; the front end of the lock tongue part is protruded with a jacking block, one end surface of the jacking block, which is close to the lock catch block, is a first jacking end, and one end of the jacking block, which is far away from the lock catch block, is protruded with a second jacking end; the front side of the lock tongue portion is provided with a limiting rod, two ends of the limiting rod are connected to the shell, the first jacking end or the second jacking end can be jacked to the limiting rod, and the limiting rod is used for limiting the swing angle of the lock tongue portion.

Preferably, the locking block comprises a first locking strip and a second locking strip; one side of the first buckle strip is close to one side of the door lock strip, and the second buckle strip is positioned on the other side of the first buckle strip; when the second jacking end is jacked on the limiting rod, the top of the second buckling strip is higher than the bottom of the door locking strip so that the door locking strip can push the lock tongue to swing; when the door lock bar is locked, the door lock bar pushes the lock tongue portion to swing, and in the swing process of the lock tongue portion, the first buckle bar swings and inserts into the limit hole of the door lock bar.

Preferably, the two sides of the top of the first buckle strip are in smooth transition connection.

Preferably, the lock tongue part is mounted at the upper end of the swing bracket through a connecting rod, and the connecting rod passes through the lock tongue part and the swing bracket; the spring bolt portion cover is equipped with first elastic component, the one end of first elastic component support in spring bolt portion, the other end of first elastic component support in the swing support makes spring bolt portion keeps towards door lock strip wobbling trend.

Preferably, a second elastic piece is arranged on one side, away from the limiting rod, of the swing support, two ends of the second elastic piece respectively support the swing support and the shell, and the second elastic piece is used for enabling the swing support to keep towards the trend of swing of the limiting rod.

The technical scheme provided by the utility model can comprise the following beneficial effects: the buckle end is used for buckling the door locking strip, the one end of spacing is spacing, the driver is connected in the other end of spacing, the driver is used for driving spacing removal, make spacing end remove to hasp spare towards door locking strip wobbling one side, spacing hasp spare swing, buckle end swing and then buckle the door locking strip, afterwards spacing end stretches out to hasp spare towards door locking strip wobbling one side, spacing hasp spare swing resets, thereby prevent that door locking strip pulling hasp spare swing from breaking away from in spacing end, can fix spacing in buckle end department with the door locking strip, can prevent that the door body from being pulled open by the user by mistake.

Drawings

Fig. 1 is a schematic structural view of a door locking device of a home appliance according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the internal structure of the movable chamber according to the embodiment of the present utility model;

FIG. 3 is a schematic view of a door latch bar fastened to a latch block;

FIG. 4 is a schematic view of the structure of the door latch bar disengaged from the snap lock block;

fig. 5 is a schematic view showing the structure of the front surface of a door lock device for a home appliance according to an embodiment of the present utility model;

fig. 6 is a schematic view illustrating an exploded structure of a door locking device of a home appliance according to an embodiment of the present utility model;

FIG. 7 is a schematic view of the structure of the door locking strip;

wherein: the door lock comprises a 1-shell, a 2-locking piece, a 3-limit bar, a 4-driver, a 5-door lock bar, a 6-slide hole, a 7-limit bar, an 8-connecting rod, a 9-first elastic piece, a 10-second elastic piece, an 11-chute, a 12-second stop block and a 13-micro switch;

the locking device comprises a locking tongue part 21, a swinging bracket 22, a locking block 23, a supporting block 24, a first 231-fastening strip, a second 232-fastening strip, a first 241-supporting end, a second 242-supporting end, a limiting end 31, a sliding end 32, a bayonet 321, a first block 322, a triggering block 323 and a limiting hole 51.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A door lock device for a home appliance according to an embodiment of the present utility model will be described with reference to fig. 1 to 7.

A door lock device of a household appliance comprises a shell 1, a locking piece 2, a limit strip 3 and a driver 4; the interior of the shell 1 is divided into a movable cavity and a limiting cavity; the locking piece 2 is arranged in the movable cavity, one end of the locking piece 2 is connected with the shell 1 in a swinging way, the other end of the locking piece 2 is a locking end, and the locking end is used for locking the door locking strip 5; the spacing 3 and the driver 4 are installed in spacing intracavity, and the one end of spacing 3 is spacing end 31, and driver 4 is connected in the other end of spacing 3, and driver 4 is used for driving spacing 3 removal, makes spacing end 31 remove to hasp 2 towards door locking strip 5 wobbling one side, spacing hasp piece 2 swing.

The door lock device of the household appliance is used for locking a door body of the household appliance. The casing 1 of this embodiment is installed at the door body of electrical apparatus, door lock strip 5 installs the box at electrical apparatus, when the box of box was closed to the door body, door lock strip 5 contradicted the buckle end, make buckle end swing and then buckle door lock strip 5, afterwards spacing end 31 stretches out to hasp 2 towards door lock strip 5 wobbling one side, spacing hasp piece 2 swing of spacing end 31 resets, thereby prevent door lock strip 5 pulling hasp piece 2 swing and disconnect in spacing end 31, can fix the spacing in buckle end department with door lock strip 5, can prevent that the door body from being pulled open by the user by mistake.

The driver 4 is used for driving the position of the limit bar 3 to move, so that the limit end 31 of the limit bar 3 moves to one side of the locking piece 2 and withdraws from between the locking piece 2 and the shell when unlocking. The actuator 4 may be an electromagnet actuator, a motor actuator or a manual actuator, preferably the actuator 4 is an electromagnet actuator.

When the door of the box body needs to be opened, the limiting end 31 firstly exits one side of the locking piece 2, and the locking piece 2 can swing when the door body is pulled open, so that the opening of the locking end swings to be opposite to the door locking strip 5 so as to be separated from the door locking strip 5, and the door body is opened.

Specifically, when the limiting end 31 moves to one side of the locker 2, the limiting end 31 corresponds to the middle of the locker 2. The limiting end 31 is located at the middle position of the locking piece 2, and the limiting end 31 can better limit the swing of the locking piece 2.

Further stated, a sliding hole 6 is arranged between the movable cavity and the limiting cavity, the position of the sliding hole 6 is aligned with the limiting end 31, and the sliding hole 6 is used for the limiting end 31 to extend into the movable cavity. The limiting end 31 can move to one side of the locking piece 2 through the sliding hole 6. The slide hole 6 also plays a limiting role, when the limiting end 31 swings at the limiting lock catch piece 2, if the limiting end 31 receives the swinging thrust of the lock catch piece 2, the limiting end 31 can be limited to swing by the slide hole 6, the side surface of the slide hole 6 plays a limiting role on the limiting end 31, the limiting end 31 can be prevented from shifting, and the limiting end 31 better limits the swing of the lock catch piece 2.

Specifically, the other end of the limit bar 3 is a sliding end 32; the inside of the shell 1 is provided with a chute 11, a sliding end 32 is arranged in the chute 11, a bayonet 321 is arranged at the front side of the sliding end 32, and the driving end of the driver 4 is detachably buckled in the bayonet 321; the rear side of the sliding end 32 is protruded with a first stop block 322, the sliding groove 11 is protruded with a second stop block 12, the position of the second stop block 12 is correspondingly set with the position of the first stop block 322, the distance from the first stop block 322 to the second stop block 12 is the range that the limit bar 3 retreats from the limit locking piece 2.

When the driver 4 drives the limit bar 3 to move, the sliding end 32 can slide in the sliding groove 11, so that the limit bar 3 can be ensured to move horizontally in the moving process, and the limit end 31 can be ensured to be accurately inserted into the sliding hole 6. The drive end of driver 4 can be dismantled and buckle in bayonet 321, and the top cross-section of drive end is T to the drive end buckle in bayonet 321, when driver 4 or spacing 3 damage, be convenient for change driver 4 or spacing 3, need not driver 4 and spacing 3 to change together, can reduce cost of maintenance.

The spacing end 31 is L shape, and when one section of spacing end 31 inserts in the slide hole 6, another section of spacing end 31 can support in the inner wall of casing 1, can play spacing effect to spacing end 31, can ensure that spacing 3 remain certain length in spacing chamber, and spacing 3 is when spacing swing support 22, and driver 4, spout 11 and slide hole 6 three can carry out spacing fixed to spacing 3, prevent spacing 3 swing. In the process that the limit bar 3 exits from one side of the swing bracket 22, the second stop block 12 can limit the exiting distance of the limit bar 3, and the second stop block 12 in the chute 11 can block the moving range of the first stop block 322, so that the moving range of the limit bar 3 can be controlled better.

Because the chute 11 protrudes out of the second stop block 12, the sliding end 32 is provided with a yielding groove at one side attached to the second stop block 12, and the sliding end 32 avoids the second stop block 12 through the yielding groove, so that the sliding end 32 is not affected by the second stop block 12 in the sliding process. The specific position of the first stop 322 may be in the relief groove, so that the positions of the first stop 322 and the second stop 12 correspond to each other.

Further, the lower side of the sliding end 32 is protruded with a trigger block 323; a micro switch 13 is installed below the sliding end 32, the switch of the micro switch 13 is corresponding to the position of the trigger block 323, and the micro switch 13 is used for detecting the position of the sliding end 32. In the process that the limit bar 3 moves to one side of the swing bracket 22, the trigger block 323 touches the switch of the micro switch 13 and keeps pressing, so that the micro switch 13 feeds back the position of the limit bar 3 to the control panel of the electrical appliance, and a user can know the position of the limit bar 3. In the process that the limit bar 3 exits from the swing bracket 22, the trigger block 323 is separated from the switch of the pressing micro switch 13.

Specifically, the locker 2 includes a locker portion 21 and a swing bracket 22; the lower end of the swing bracket 22 is connected with the shell 1 in a swing way, the lock tongue part 21 is connected with the upper end of the swing bracket 22 in a swing way, and the limit end 31 can move to one side of the swing bracket 22; the upper end of the locking tongue part 21 is protruded with a locking block 23, and the locking block 23 is used for locking the door locking strip 5; the front end of the locking tongue part 21 is protruded with a jacking block 24, one end surface of the jacking block 24, which is close to the locking block 23, is a first jacking end 241, and one end of the jacking block 24, which is far away from the locking block 23, is protruded with a second jacking end 242; the front side of the lock tongue portion 21 is provided with a limiting rod 7, two ends of the limiting rod 7 are connected to the shell 1, the first propping end 241 or the second propping end 242 can prop against the limiting rod 7, and the limiting rod 7 is used for limiting the swinging angle of the lock tongue portion 21.

When the first propping end 241 is propped against the limiting rod 7, the locking block 23 is in a buckling state, and when the second propping end 242 is propped against the limiting rod 7, the locking block 23 is in a waiting state.

When the locking block 23 is in the state to be locked, the locking block 23 faces the door locking strip 5 for locking the door locking strip 5. The door locking bar 5 moves towards the locking block 23 and pushes the locking block 23 to swing, the locking block 23 drives the locking tongue 21 to swing forwards, the second pushing end 242 is separated from the pushing of the limiting rod 7 until the locking tongue 21 swings to the first pushing end 241 to push the limiting rod 7, and the limiting rod 7 can be attached to an included angle between the pushing block 24 and the locking tongue 21 due to the fact that the pushing block 24 protrudes out of the locking tongue 21, so that the first pushing end 241 is limited at the limiting rod 7, at this time, the locking block 23 is in a buckling state, and the door locking bar 5 is buckled on the locking block 23.

If the door lock bar 5 wants to be separated from the lock catch block 23, the door lock bar 5 can move backwards, the door lock bar 5 drives the swinging bracket 22 to swing through the lock catch block 23, so that the lock catch block 23 moves away from the limit rod 7 along with the door lock bar 5, when the lock catch block 23 swings to a certain angle, the door lock bar 5 is separated from the lock catch block 23 when the position of the lock catch block 23 is lower than that of the door lock bar 5, meanwhile, the first propping end 241 is separated from and propped against the limit rod 7, the second propping end 242 is propped against the limit rod 7, and at the moment, the lock catch block 23 is in a state to be buckled, so that the door lock bar 5 is buckled on the lock catch block 23 again.

Further illustratively, the latch block 23 includes a first latch bar 231 and a second latch bar 232; one side of the first locking bar 231 is close to one side of the door locking bar 5, and the second locking bar 232 is positioned on the other side of the first locking bar 231; when the second supporting end 242 supports against the limiting rod 7, the top of the second buckling strip 232 is higher than the bottom of the door locking strip 5, so that the door locking strip 5 pushes the locking tongue 21 to swing; when the door lock bar 5 is locked, the door lock bar 5 pushes the lock tongue portion 21 to swing, and in the process of swinging the lock tongue portion 21, the first fastening bar 231 swings and is inserted into the limit hole 51 of the door lock bar 5.

The first fastening strip 231 is used for fastening the door lock strip 5, and the second fastening strip 232 is used for assisting the door lock strip 5 to fasten on the first fastening strip 231. When the door lock bar 5 moves towards the locking block 23 to be locked, as the top of the second locking bar 232 is higher than the bottom of the door lock bar 5, the door lock bar 5 pushes the second locking bar 232 to swing, so that the locking tongue 21 drives the first locking bar 231 to swing, meanwhile, the second supporting end 242 is separated from the supporting of the limiting rod 7, until the first locking bar 231 swings and is inserted into the limiting hole 51, the first supporting end 241 swings to the limiting rod 7, the first supporting end 241 is limited at the limiting rod 7, the door lock bar 5 is limited at the first locking bar 231 through the limiting hole 51, and the door lock bar 5 and the locking block 23 realize locking.

Further describing, the two sides of the top of the first snap bar 231 are smoothly connected. The smooth transition connection facilitates the limiting hole 51 to be clamped into the first clamping strip 231, or the first clamping strip 231 is conveniently withdrawn from the limiting hole 51, and the limiting hole 51 and the first clamping strip 231 are matched more smoothly.

Specifically, the lock tongue portion 21 is mounted to the upper end of the swing bracket 22 through the connecting rod 8, and the connecting rod 8 passes through the lock tongue portion 21 and the swing bracket 22; the latch portion 21 is sleeved with a first elastic member 9, one end of the first elastic member 9 is propped against the latch portion 21, and the other end of the first elastic member 9 is propped against the swing bracket 22, so that the latch portion 21 keeps a tendency of swinging towards the door latch 5.

The locking tongue part 21 can be arranged on the swinging bracket 22 in a swinging way through the connecting rod 8, so that the locking tongue part 21 can swing conveniently. The first elastic piece 9 can enable the latch portion 21 to keep the trend of swinging towards the door locking strip 5, the spring bolt portion 21 is not pulled by the door locking strip 5, the first propping end 241 can be limited on the limiting rod 7, the latch portion 21 is pulled by the door locking strip 5, when the first propping end 241 is separated from the limiting rod 7, the first elastic piece 9 can push the latch portion 21 to swing, the second propping end 242 swings to the limiting rod 7 and is limited at the limiting rod 7, and the latch block 23 is kept in a state to be buckled.

Specifically, a second elastic member 10 is disposed on a side of the swing bracket 22 facing away from the stop lever 7, two ends of the second elastic member 10 respectively support the swing bracket 22 and the housing 1, and the second elastic member 10 is used for keeping the swing bracket 22 in a swinging trend toward the stop lever 7. In the process of separating the door lock bar 5 from the lock catch block 23, the door lock bar 5 pulls the swing bracket 22 to swing backward through the lock catch block 23, the swing bracket 22 presses the second elastic piece 10 in the swing process, and when the door lock bar 5 is separated from the lock catch block 23, the second elastic piece 10 pushes the swing bracket 22 to swing forward, so that the second pushing end 242 pushes against the limiting rod 7, and the lock catch block 23 keeps the state to be buckled.

Other constitution, etc. and operation of a door lock device of a home appliance according to an embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. A door lock device for a household appliance, characterized in that: comprises a shell, a locking piece, a limit strip and a driver;

the inner part of the shell is divided into a movable cavity and a limiting cavity;

the locking piece is arranged in the movable cavity, one end of the locking piece is connected with the shell in a swinging mode, the other end of the locking piece is a locking end, and the locking end is used for locking a door locking strip;

the limiting strip and the driver are installed in the limiting cavity, one end of the limiting strip is a limiting end, the driver is connected to the other end of the limiting strip, the driver is used for driving the limiting strip to move, the limiting end is enabled to move to one side, facing the door locking strip, of the locking piece to swing, and the locking piece is limited to swing.

2. A door lock device for a home appliance according to claim 1, wherein: and a sliding hole is arranged between the movable cavity and the limiting cavity, the position of the sliding hole is aligned with the limiting end, and the sliding hole is used for the limiting end to extend into the movable cavity.

3. A door lock device for a home appliance according to claim 1, wherein: the other end of the limiting strip is a sliding end;

the inside of the shell is provided with a sliding groove, the sliding end is arranged in the sliding groove, the front side of the sliding end is provided with a bayonet, and the driving end of the driver can be detachably buckled with the bayonet;

the rear side protrusion of sliding end has first dog, the spout protrusion has the second dog, the position of second dog with the position of first dog corresponds the setting, first dog to the distance of second dog is for spacing the limit bar withdraws from spacing the scope that the latch moved.

4. A door lock device for a home appliance according to claim 3, wherein: a trigger block protrudes from the lower side of the sliding end;

the micro switch is arranged below the sliding end, the switch of the micro switch is arranged corresponding to the position of the trigger block, and the micro switch is used for detecting the position of the sliding end.

5. A door lock device for a home appliance according to claim 1, wherein: the lock catch piece comprises a lock tongue part and a swinging bracket;

the lower end of the swing bracket is connected with the shell in a swing way, the lock tongue part is connected with the upper end of the swing bracket in a swing way, and the limit end can move to one side of the swing bracket;

the upper end of the lock tongue part is protruded with a lock catch block, and the lock catch block is used for buckling the door lock bar;

the front end of the lock tongue part is protruded with a jacking block, one end surface of the jacking block, which is close to the lock catch block, is a first jacking end, and one end of the jacking block, which is far away from the lock catch block, is protruded with a second jacking end;

the front side of the lock tongue portion is provided with a limiting rod, two ends of the limiting rod are connected to the shell, the first jacking end or the second jacking end can be jacked to the limiting rod, and the limiting rod is used for limiting the swing angle of the lock tongue portion.

6. A door lock device for a home appliance as claimed in claim 5, wherein: the locking block comprises a first locking strip and a second locking strip;

one side of the first buckle strip is close to one side of the door lock strip, and the second buckle strip is positioned on the other side of the first buckle strip;

when the second jacking end is jacked on the limiting rod, the top of the second buckling strip is higher than the bottom of the door locking strip so that the door locking strip can push the lock tongue to swing;

when the door lock bar is locked, the door lock bar pushes the lock tongue portion to swing, and in the swing process of the lock tongue portion, the first buckle bar swings and inserts into the limit hole of the door lock bar.

7. The door lock device for a home appliance according to claim 6, wherein: and the two sides of the top of the first buckle strip are in smooth transition connection.

8. The door lock device for a home appliance according to claim 7, wherein: the spring bolt part is arranged at the upper end of the swing bracket through a connecting rod, and the connecting rod penetrates through the spring bolt part and the swing bracket;

the spring bolt portion cover is equipped with first elastic component, the one end of first elastic component support in spring bolt portion, the other end of first elastic component support in the swing support makes spring bolt portion keeps towards door lock strip wobbling trend.

9. The door lock device for a home appliance according to claim 7, wherein: the swing support deviates from one side of gag lever post is provided with the second elastic component, the both ends of second elastic component are held respectively the swing support with the casing, the second elastic component is used for making the swing support keeps towards the trend of gag lever post swing.