CN221032004U - Door lock device and household appliance comprising same - Google Patents

Abstract

The utility model discloses a door lock device and a household appliance comprising the same, comprising a shell, a driving part, a switching part and a door cover control part, wherein the driving part, the switching part and the door cover control part are positioned in the shell; the switching part comprises a locking rod, and the switching part converts the rotary motion of the driving part into the linear reciprocating motion of the locking rod so as to switch the locking rod between a locking position and an unlocking position; the door control portion switches movement between a closed door state and an open door state. The lock lever is capable of freely switching between an unlock position and a lock position when the door cover control portion is in a door-closed state; the door control portion is capable of preventing the lock lever from reaching the lock position when the door control portion is in the door-open state; the lock lever prevents the door control portion from reaching the door open state in the lock position. The utility model does not need to arrange a limiting element, and the motor can effectively prevent the locking rod from sliding out under the condition of still moving in the door opening state, and has simple structure and strong durability.

Description

Door lock device and household appliance comprising same

Technical Field

The utility model relates to the technical field of household appliance design, in particular to a door lock device and a household appliance comprising the same.

Background

With the improvement of the scientific and technical level, the intellectualization of household appliances is more and more common, taking a washing machine as an example, in the working process of the washing machine, in order to prevent the door from being opened during the working of the washing machine, a door lock device is arranged in the washing machine, so that the door of the washing machine cannot be opened during the running of the washing machine. The door lock device is usually a door lock motor, and the door lock motor with the existing structure has an electromagnet structure and a synchronous motor structure.

The motor with the electromagnet structure is driven by the electromagnet to lock the door of the washing machine, and the structure is complex, the manufacturing cost is high and the noise is larger; the pin shaft of the output gear in the motor of the synchronous motor structure slides in the crank groove of the sliding part, the pin shaft is easy to wear, the service life of the motor is reduced, and the sliding part of the synchronous motor realizes the forward and backward movements by means of the spring, so that the structure is complex; when the washing machine door is opened, the motor still needs to limit the sliding part under the condition of movement, so that the sliding part is prevented from sliding out to influence the closing of the washing machine door, and therefore, the limiting element needs to be additionally arranged to limit the sliding part, the parts are complex, and the manufacturing cost is high.

In summary, the door lock device in the prior art has a complex structure, high manufacturing cost and short service life, and therefore, a door lock device with a simple structure, safety and reliability is required to be designed.

Disclosure of utility model

In order to solve the technical problems of complex structure, high manufacturing cost and short service life of the door lock device in the prior art, the utility model provides a door lock device and a household appliance comprising the same to solve the problems.

The utility model provides a door lock device, which comprises a shell, a driving part, a switching part and a door cover control part, wherein the driving part, the switching part and the door cover control part are positioned in the shell; the driving part outputs a rotational motion; the switching part comprises a locking rod, and the switching part converts the rotary motion of the driving part into the linear reciprocating motion of the locking rod so as to switch the locking rod between a locking position and an unlocking position; the door control portion switches movement between a closed door state and an open door state.

The lock lever is capable of freely switching between an unlock position and a lock position when the door cover control portion is in a door-closed state; the door control portion is capable of preventing the lock lever from reaching the lock position when the door control portion is in the door-open state; the lock lever prevents the door control portion from reaching the door open state in the lock position.

Further, the movement tracks of the door cover control part and the locking rod are provided with an overlapping area, the overlapping area is occupied when and only when the door cover control part is in a door opening state, the locking rod cannot enter the overlapping area at the moment, and the overlapping area is occupied when and only when the locking rod is in a locking position, and the door cover control part cannot enter the overlapping area at the moment.

Further, the door cover control part comprises a stopper and a return spring, wherein the stopper is in sliding fit with the shell and extends out of the shell, one end of the return spring is abutted with the stopper, and the other end of the return spring is abutted with the shell; when the door cover is closed, the stopper is pressed to a door closing state and drives the return spring to deform.

Further, the switching part comprises a transmission part, a driven part and a sliding part, the sliding part is in sliding fit with the shell, the driven part is meshed with the driving part, and the driven part is connected with the transmission part and the sliding part; the driving part is provided with an eccentric structure, the driven part is in surface contact fit with the eccentric structure, and the eccentric structure forms pushing force on the driven part along the moving direction of the sliding part, so that the driven part drives the sliding part to reciprocate.

Further, an eccentric shaft is arranged on the transmission part, the sliding part is in sliding fit with the shell, the locking rod is positioned on the sliding part, the driven part is a connecting rod, one end of the connecting rod is hinged with the eccentric shaft, and the other end of the connecting rod is hinged with the sliding part.

Further, the sliding piece is provided with symmetrically arranged sliding grooves, the eccentric shaft penetrates through the sliding grooves, and the hinge shaft of the connecting rod and the sliding piece is positioned on the symmetrical shaft of the sliding grooves.

Further, a cam is arranged on the transmission part, the sliding part is a transmission shaft fixed on the locking rod, and the driven part is provided with a curved contact surface in contact fit with the outer peripheral surface of the cam and a moving groove matched with the transmission shaft; the driven piece is hinged with the shell and is connected with the fixed shaft.

Further, the movement direction of the locking rod is perpendicular to the movement direction of the stopper; and the stopper is located at one side of the housing in the direction in which the lock lever protrudes.

Further, a stopping part is arranged on the side face of the locking rod, and a stopping part is arranged at the rear end of the stopping device; when the door cover control part is in a door opening state, the front end of the stop part is abutted with the stop part.

Further, the driving part comprises a driving motor, an output gear and an electrode inserting sheet, wherein the driving motor, the output gear and the electrode inserting sheet are positioned in the shell, the electrode inserting sheet is electrically connected with the driving motor, and the output gear is meshed with the output end of the driving motor.

Further, a movable reed, a static reed and a signal processing element are arranged in the shell, the movable reed is positioned between the static reed and the switching part, when the locking rod is in a locking state, the switching part pushes the movable reed to be in contact with the static reed, and the signal processing element outputs a door locking signal.

Further, a deflector rod extending out of the shell is further arranged on the side face of the locking rod.

Further, a guide rail is arranged in the shell, and the switching part is provided with a guide groove in sliding fit with the guide rail.

The utility model also provides a household appliance comprising the door lock device.

The beneficial effects of the utility model are as follows:

(1) According to the door lock device and the household appliance comprising the same, the door cover control part is additionally arranged between the door cover and the locking rod, when the door cover is opened, the door cover control part is utilized to react the opening and closing states, and meanwhile, the locking rod is restrained from reaching the locking state through the door cover control part, so that a limiting element is not required to be arranged, and the locking rod is effectively prevented from sliding out under the condition that the motor is still moving in the opening state, so that the door lock device is simple in structure and strong in durability.

(2) The door lock device and the household appliance comprising the same realize the linear reciprocating motion of the sliding part in a mode of matching the gear transmission and the sliding part, so that the door lock device is completely locked and unlocked, and compared with the door lock device which relies on spring expansion, the door lock device has the advantages of more reliable rigid matching structure and longer service life.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a perspective view of a door lock device according to the present utility model;

Fig. 2 is a schematic view showing an internal structure of the door lock device according to the present utility model;

fig. 3 is an exploded view of the door lock apparatus according to the present utility model;

FIG. 4 is a schematic diagram of the connection between the driving part and the driving member according to the present utility model;

FIG. 5 is a schematic view of a transfer portion according to an embodiment of the present utility model;

FIG. 6 is an exploded view of a transition section according to one embodiment of the present utility model;

FIG. 7 is a schematic view of an embodiment in which the transition portion is in an initial position;

FIG. 8 is a schematic view of the transfer portion from the initial position to the intermediate position by clockwise rotation of the transmission member;

FIG. 9 is a schematic view of the transfer portion from the initial position to the intermediate position upon counterclockwise rotation of the transmission member;

FIG. 10 is a schematic view of the transition section in the final position;

FIG. 11 is a schematic view of the transfer portion of the first embodiment when the brake is manually released;

FIG. 12 is a perspective view of the stopper of the present utility model;

fig. 13 is a schematic view of the door lock device according to the present utility model when the stopping portion abuts against the stopper portion;

fig. 14 is a schematic view showing a surface assembly of a cover in the door lock device according to the present utility model;

FIG. 15 is a schematic view of the stop being displaced from the stop height position;

FIG. 16 is an exploded view of a transition section according to a second embodiment of the present utility model;

FIG. 17 is a schematic view of the adapter portion of the second embodiment in an initial position;

FIG. 18 is a schematic view of the transfer portion from the initial position to the intermediate position upon clockwise rotation of the transmission member;

FIG. 19 is a schematic view of the transfer portion from the initial position to the intermediate position upon counterclockwise rotation of the transmission member;

Fig. 20 is a schematic view of the transition portion in the end position.

In the figure, 1, a driving part, 101, a driving motor, 102, an output gear, 103, an electrode insertion piece, 2, a switching part, 201, a transmission piece, 202, a driven piece, 203, a sliding piece, 2031, a guide groove, 204, an eccentric shaft, 205, a hinge shaft, 206, a locking lever, 2061, a stopper, 2062, a slide rail groove, 207, a curved contact surface, 208, a moving groove, 209, a fixed shaft, 210, a deflector rod, 211, a cam, 3, a door cover control part, 301, a stopper, 3011, a guide post, 3012, a limit post, 3013, a stopper, 302, a return spring, 4, a housing, 401, a housing, 4011, a sliding groove, 4012, a mounting position, 4013, a slide rail, 402, a housing cover, 1, a guide groove, 403, a cover, 4031, a guide rail, 5, a movable reed, 6, a fixed reed, 7, a chute, 8, a driven connecting hole, 9, and a transmission connecting hole.

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.

As shown in fig. 1 to 4, a door lock device is mainly used for locking a door cover when the door cover is closed in a household appliance, and the door cover is opened in the working process of the appliance. The door lock device comprises a shell 4 which plays roles in protection and fixation, other working parts are all positioned in the shell 4, the working parts comprise a driving part 1, a switching part 2 and a door cover control part 3, the driving part 1 is used for providing power for door lock movement, and the driving part 1 can output rotary movement; the door cover control portion 3 is in direct contact with the door cover, and corresponds to a state of the door cover, the door cover control portion 3 switches movement between a door-closed state, which means that the door cover has been closed, and a door-open state, which means that the door cover has been opened, which means that the door cover 3 is in the door-closed state. The lock lever 206 prevents the door control portion 3 from reaching the door opening state in the lock position.

The switching part 2 is a bridge between the driving part 1 and the door cover control part 3, and on the one hand, plays a role of motion form conversion (namely, converting rotary motion into linear motion so as to switch the locking rod 206 between a locking position and an unlocking position), and the locking rod 206 prevents the door cover control part 3 from reaching a door opening state in the locking position, namely, the door cover is locked and cannot be opened in the locking position. On the other hand, the movement of the door control portion 3 and thus the door movement is controlled by the lock lever 206. The specific control method comprises the following steps: the lock lever 206 is capable of freely switching between the unlock position and the lock position when the door cover control section 3 is in the door-closed state, i.e., the drive section 1 can drive the lock lever 206 to lock the door cover when the door cover is closed; when the door cover control part 3 is in the door opening state, the door cover control part 3 can prevent the locking rod 206 from reaching the locking position, namely, when the door cover is opened, the locking rod 206 can only be positioned at the unlocking position, even if the driving part 1 is still working, the locking rod 206 can not lock the door cover under the obstruction of the door cover control part 3, so that the movement of the locking rod 206 can be controlled by utilizing the movement state of the door cover control part 3, the locking rod 206 is not required to be controlled by additionally arranging a limiting element, the structure is simple, and the working accuracy is high.

The door control portion 3 and the locking lever 206 may restrict movement of each other by their own structures, and in the embodiment of the present utility model, the movement trajectories of the door control portion 3 and the locking lever 206 have overlapping areas that are occupied when and only when the door control portion 3 is in the door-open state, and the locking lever 206 cannot enter when and only when the locking lever 206 is in the locking position, and the door control portion 3 cannot enter when and only when the door control portion 3 is in the locking position. In the unfolded state, when the door cover control part 3 is in the door opening state, the door cover control part 3 occupies the overlapping area, the locking rod 206 cannot reach the overlapping area, and the locking rod 206 can be in the locking position only when reaching the overlapping area, so when the door cover control part 3 is in the door opening state, the locking rod 206 can be in the unlocking position, and even if the driving part 1 is started, the door cover cannot be locked; similarly, when the lock lever 206 is in the lock position, the lock lever 206 occupies the overlapping area, the door control portion 3 cannot reach the overlapping area, and since the door control portion 3 can be in the door-open state only when reaching the overlapping area, the door control portion 3 is in the door-closed state when the lock lever 206 is in the lock position, that is, only when the door is closed, the door needs to be locked.

The structure of the door lock device is described in detail below with respect to a specific embodiment:

Example 1

The outer shell 4:

as shown in fig. 1 to 3, the housing 4 includes a case 401 and a case cover 402 which are covered with each other, and a lining cover 403 located inside the housing 4, the lining cover 403 divides the housing 4 into two layers, the driving portion 1 is located in a cavity between the lining cover 403 and the case 401, the switching portion 2 is mounted on the lining cover 403, located in a cavity between the lining cover 403 and the case cover 402, the door cover control portion 3 is located at an edge of the case 4, and is mounted between the case 401 and the case cover 402.

Driving section 1:

As shown in fig. 4, the driving section 1 includes a driving motor 101, an output gear 102, and an electrode tab 103 inside the housing 4, the electrode tab 103 being electrically connected to the driving motor 101, the output gear 102 being engaged with an output end of the driving motor 101. The driving motor 101 inputs an electric signal through the electrode inserting sheet 103, a magnetic field is generated after the stator assembly in the driving motor 101 is electrified, the rotor assembly rotates under the action of the magnetic field, and the rotor assembly rotates clockwise or anticlockwise and is transmitted to the switching part 2 through the output gear 102.

As shown in fig. 5, the casing 4 is generally further provided therein with a movable spring 5, a static spring 6, and a signal processing element, the movable spring 5 is located between the static spring 6 and the slider 203, when the locking lever 206 is in a locked state, the switching portion 2 pushes the movable spring 5 to be in contact with the static spring 6, the signal processing element outputs a door locking signal, the controller sends a power-off signal to the driving motor 101, and the locking lever 206 stops moving.

Door cover control section 3:

the door cover control portion 3 includes a stopper 301 and a return spring 302, the stopper 301 being slidably engaged with the housing 4 and extending out of the housing 4, one end of the return spring 302 being in abutment with the stopper 301, the other end being in abutment with the housing 4; when the door is closed, the stopper 301 is pressed to a closed state and deforms the return spring 302. As shown in fig. 3 and 12-14, a mounting position 4012 matched with the stopper 301 is provided in the front of the extending direction of the locking rod 206 in the housing 401, two side surfaces of the stopper 301 are planes attached to the mounting position 4012, the return spring 302 is located above the stopper 301, the stopper 301 is provided with a limit post 3012 extending in the up-down direction, the bottom of the limit post 3012 is provided with a guide post 3011 with a larger diameter, the inner bottom surface of the housing 401 is provided with a sliding groove 4011, and the guide post 3011 is located in the sliding groove 4011. The edge of the shell cover 402 is provided with a protruding part, a guide groove 4021 is arranged in the protruding part, one end of the reset spring 302 is placed on the limiting post 3012 and abuts against the guide post 3011, and the other end of the reset spring is positioned in the guide groove 4021 and abuts against the inner bottom surface of the guide groove 4021. The return spring 302 is in a compressed state when mounted, and the stopper 301 abuts against the surface of the housing 401 under the action of the return spring 302.

When the door is closed, the door pushes the stopper 301 from the lower side to the upper side, the return spring 302 is further compressed, and when the door is opened, the return spring 302 pushes the stopper 301 to return, so that the state of the stopper 301 can show the opened or closed state of the door.

The switching part 2:

The transfer part 2 comprises a transmission part 201, a driven part 202 and a sliding part 203, wherein the transmission part 201 is a transmission gear meshed with the output gear 102 for transmission, the sliding part 203 is in sliding fit with the shell 4, the driven part 202 is connected with the transmission part 201 and the sliding part 203 and converts the rotation motion of the output gear 102 into the linear reciprocating motion of the sliding part 203, the transmission part 201 is provided with an eccentric structure, the driven part 202 is in surface contact fit with the eccentric structure, and the eccentric structure forms a pushing force on the driven part 202 along the motion direction of the sliding part 203, so that the driven part 202 drives the sliding part 203 to reciprocate. When the eccentric structure moves to the forefront in the direction in which the lock lever 206 protrudes, the slider 203 is pulled to the forefront by the follower 202; when the eccentric structure moves to the rearmost of the extending direction of the locking rod 206, the sliding member 203 is pushed backward by the follower 202, and when the eccentric structure is located in other areas on the circumference, the sliding member 203 is located in the sliding stroke, so that the driving member 201 can rotate circumferentially in any direction in the present utility model. The conventional door lock motor is provided with the directional part on the transmission member 201, and the setting of the directional part can be canceled by controlling the rotation direction of the transmission member 201 to achieve the telescopic effect of the sliding member 203.

The specific structure of the adapting portion 2 of this embodiment is: the eccentric structure is an eccentric shaft 204 fixed on a transmission member 201, the driven member 202 is a connecting rod, one end of the connecting rod is hinged with the eccentric shaft 204, the other end of the connecting rod is hinged with a sliding member 203 on a hinge shaft 205, the sliding member 203 is in sliding fit with a shell 401, as shown in fig. 6, a guide rail 4031 is arranged on the upper end surface of a lining cover 403, the sliding member 203 is provided with a guide groove 2031 in sliding fit with the guide rail 4031, a transmission connecting hole 9 and a driven connecting hole 8 are arranged on the connecting rod, the eccentric shaft 204 is positioned in the transmission connecting hole 9, and the hinge shaft 205 is positioned in the driven connecting hole 8. The locking lever 206 is located on the right side of the slider 203, and is integrally formed with the slider 203, and as shown in fig. 16, a slide rail 4013 is provided on the inner bottom surface of the housing 401, and a slide rail groove 2062 slidably engaged with the slide rail 4013 is provided on the bottom of the locking lever 206.

The transmission piece 201 rotates to drive the eccentric shaft 204 to rotate, the front end of the connecting rod is driven by the eccentric shaft 204 to swing left and right, and the rear end of the connecting rod is limited by the hinge shaft 205 to move only in sequence, so that the sliding piece 203 is driven to move, and the sliding piece 203 moves in a straight reciprocating mode along the guide rail 4031.

Since the driving motor 101 is powered off by the contact signal of the movable reed 5 and the static reed 6, when the door cover is ready to be opened, the sliding member 203 is retracted to the unlocking position, and at this time, the movable reed 5 is separated from the static reed 6, the driving motor 101 is always in the starting state, and the sliding member 203 continuously reciprocates if not limited.

The eccentric shaft 204 may be located outside the sliding member 203, or may be connected to a connecting rod after passing through the sliding member 203, in this embodiment, symmetrically arranged sliding grooves 7 are provided on the sliding member 203, the eccentric shaft 204 passes through the sliding grooves 7, and the hinge axis 205 of the connecting rod and the sliding member 203 is located on the symmetry axis of the sliding grooves 7. After one revolution of the drive motor 101, the slider 203 can complete two complete strokes of movement.

The action of the link and the locking lever 206 is:

Starting position: eccentric shaft 204 of transmission member 201 is positioned at the lower side as shown in fig. 7, sliding member 203 is positioned at the lower side as shown in fig. 7, and lock lever 206 moves upward when transmission member 201 rotates clockwise or counterclockwise as shown in fig. 7.

Midway position: when the transmission member 201 rotates clockwise or anticlockwise, the connecting rod correspondingly swings clockwise or anticlockwise, and the locking rod 206 can be driven to move upwards, as shown in fig. 8, when the transmission member 201 rotates clockwise, the connecting rod swings schematically; fig. 9 shows a diagram of the swinging of the link when the transmission member 201 rotates counterclockwise.

The end position is shown in fig. 10: the slider 203 moves upward in fig. 9, the movable reed 5 contacts the fixed reed 6, a signal is transmitted to the outside of the motor through the movable reed 5 and the fixed reed 6, the driving motor 101 is powered off, and the movement of the lock lever 206 is stopped.

The lock lever 206 is reset: when the door needs to be opened, the driving motor 101 is electrified to operate, the transmission piece 201 rotates clockwise or anticlockwise, the connecting rod is pushed to swing, and the connecting rod pushes the locking rod 206 to return to the inside of the shell 4.

The positional restriction between the lock lever 206 and the stopper 301 can be achieved by the following structure: the movement direction of the lock lever 206 is perpendicular to the movement direction of the stopper 301; and the stopper 301 is located on one side of the housing 4 in the direction in which the lock lever 206 protrudes. As shown in fig. 16, the movement track of the locking lever 206 and the mounting position 4012 are in the same line, the locking lever 206 moves in the front-back direction, the stopper 301 moves in the vertical direction, when the door cover is closed, the stopper 301 is pushed upwards, the locking lever 206 can extend out of the housing 4 from below the stopper 301, the stopper 301 cannot be reset downwards, and the locking effect is achieved; when the stopper 301 is reset, the stopper 301 is in the movement path of the lock lever 206, and the lock lever 206 cannot protrude from the housing 4.

Specifically, the side surface of the lock lever 206 is provided with a stopper 2061, and the rear end of the stopper 301 is provided with a stopper 3013; when the door cover control portion 3 is in the door open state, the front end of the stopper 2061 abuts against the stopper 3013.

When the door is not closed, the drive motor 101 is energized to operate, the lock lever 206 moves upward in fig. 13, and the stopper 2061 contacts the stopper 3013, preventing the lock lever 206 from continuing to move upward.

When the door is closed, the stopper 301 is pushed by the door along the slide groove 4011, the stopper 3013 is away from the front of the stopper 2061, the stopper 3013 and the stopper 2061 are offset from each other as shown in fig. 15, and the lock lever 206 moves upward in fig. 15 as the drive motor 101 continues to operate, and protrudes from the housing 401.

Example two

The structure of the transfer portion 2 in this embodiment is different from that in the second embodiment, and the specific structure is: as shown in fig. 16, the adapting part 2 comprises a transmission member 201, a driven member 202 and a sliding member 203, wherein the transmission member 201 is in transmission fit with the driving part 1, specifically a transmission gear meshed with the output gear 102, a cam 211 is fixed on the transmission member 201, the sliding member 203 is a transmission shaft fixed with a locking rod 206, and the driven member 202 is provided with a curved contact surface 207 in contact fit with the peripheral surface of the cam 211 and a moving groove 208 in fit with the transmission shaft; the follower 202 is hinged to the fixed shaft 209 with the housing 4, and the cam 211 can form a forward or backward thrust against the curved contact surface 207 during rotation of the transmission 201.

The driving motor 101 inputs an electric signal through the electrode inserting sheet 103, the stator assembly generates a magnetic field after being electrified, the rotor assembly rotates under the action of the magnetic field, the rotor assembly drives the output end of the driving motor 101 to rotate clockwise or anticlockwise, and the motion is transmitted to the transmission piece 201 through the output gear 102.

The follower 202 and the slider 203 are operated as follows:

Starting position: as shown in fig. 17, a cam 211 is provided on the surface of the transmission member 201, the side surface of the cam 211 contacts the curved contact surface 207 and pushes the follower 202 to move, the fixed shaft 209 is provided on the cover 403, and the follower 202 swings around the fixed shaft 209.

Midway position: when the transmission member 201 rotates clockwise or counterclockwise, the cam 211 pushes the follower 202, so that the follower 202 swings counterclockwise, the slider 203 slides in the movement groove 208 of the follower 202, and the follower 202 pushes the lock lever 206 to move upward in fig. 18 along the slide rail 4013 via the slider 203. Fig. 18 shows a schematic diagram of the swing of the follower 202 when the transmission member 201 is clockwise; fig. 19 shows a schematic diagram of the swing motion of the follower 202 when the driving member 201 rotates counterclockwise.

End position: the locking lever 206 moves upward in the drawing, the transmission member 201 is swung leftward to contact the movable reed 5, and the movable reed 5 contacts the stationary reed 6, and as shown in fig. 20, a signal is transmitted from the outside of the motor to control the drive motor 101 to be powered off, and the movement of the locking lever 206 is stopped.

The lock lever 206 is reset: when the door needs to be opened, the driving motor 101 is electrified to operate, the transmission piece 201 rotates clockwise or anticlockwise, the driven piece 202 is pushed to swing clockwise, and the driven piece 202 pushes the sliding piece 203 to return to the inside of the shell 4.

Example III

On the basis of the first embodiment, the side of the locking lever 206 is also provided with a lever 210 which protrudes out of the housing 4.

In order to prevent the situation that the motor is not electrified and cannot be reset when the equipment fails, a structure for manually releasing the brake is arranged. When the door is closed and cannot be opened, the driving motor 101 is at the end position, and the shift lever 210 is manually adjusted at the side surface of the driving motor 101 to reset the locking lever 206.

In the first embodiment, in the end position, the connecting rod is parallel to the movement direction of the shift lever 210, when the shift lever 210 is pushed downward, the connecting rod is blocked by the pushing force, so that the driving member 201 cannot be driven to rotate, therefore, in the embodiment, the diameter of the driving connecting hole 9 is larger than that of the eccentric shaft 204, or the driven connecting hole 8 is an elliptical hole, as shown in fig. 11, when the shift lever 210 is pushed downward, the sliding member 203 moves downward, the inner surface of the sliding chute 7 contacts with the eccentric shaft 204 first and pushes the eccentric shaft 204 to move to two sides, then the sliding member 203 drives the eccentric shaft 204 through the connecting rod, so that the driving member 201 rotates, and when the driving member 201 rotates to the start position, the locking rod 206 completes resetting.

Example IV

A household appliance comprising the door lock device described above. The household appliance can be a washing machine, a dish washer and the like

In summary, the present utility model eliminates the rotation orientation part of the transmission member 201, and simultaneously, the transmission member 201 can realize the linear reciprocating motion of the locking rod 206 clockwise or anticlockwise, so as to reduce the material cost and the manufacturing cost.

The stopper 2061 is added to the side of the locking lever 206, and the stopper 301 is added, so that the locking lever 206 can be braked under the condition that the door cover is opened and the motor still operates, a limiting device driven by a torsion spring is omitted, the cost is reduced, and the structure is simplified.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In this specification, a schematic representation of the terms does not necessarily refer to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (14)

1. A door lock apparatus, comprising:

a housing, a driving part, a switching part and a door cover control part which are positioned in the housing;

The driving part outputs a rotational motion;

The switching part comprises a locking rod, and the switching part converts the rotary motion of the driving part into the linear reciprocating motion of the locking rod so as to switch the locking rod between a locking position and an unlocking position;

the door cover control part switches between a door closing state and a door opening state;

The lock lever is capable of freely switching between an unlock position and a lock position when the door cover control portion is in a door-closed state; the door control portion is capable of preventing the lock lever from reaching the lock position when the door control portion is in the door-open state; the lock lever prevents the door control portion from reaching the door open state in the lock position.

2. The door lock apparatus according to claim 1, wherein: the movement tracks of the door cover control part and the locking rod are provided with an overlapping area, the overlapping area is occupied when and only when the door cover control part is in a door opening state, the locking rod cannot enter the overlapping area at the moment, and the overlapping area is occupied when and only when the locking rod is in a locking position, and the door cover control part cannot enter the overlapping area at the moment.

3. The door lock apparatus according to claim 1, wherein: the door cover control part comprises a stopper and a return spring, the stopper is in sliding fit with the shell and extends out of the shell, one end of the return spring is abutted with the stopper, and the other end of the return spring is abutted with the shell; when the door cover is closed, the stopper is pressed to a door closing state and drives the return spring to deform.

4. A door lock apparatus according to claim 3, wherein: the switching part comprises a transmission part, a driven part and a sliding part, the sliding part is in sliding fit with the shell, the driven part is meshed with the driving part, and the driven part is connected with the transmission part and the sliding part;

The driving part is provided with an eccentric structure, the driven part is in surface contact fit with the eccentric structure, and the eccentric structure forms pushing force on the driven part along the moving direction of the sliding part, so that the driven part drives the sliding part to reciprocate.

5. The door lock apparatus according to claim 4, wherein: the transmission part is provided with an eccentric shaft, the sliding part is in sliding fit with the shell, the locking rod is positioned on the sliding part, the driven part is a connecting rod, one end of the connecting rod is hinged with the eccentric shaft, and the other end of the connecting rod is hinged with the sliding part.

6. The door lock apparatus according to claim 5, wherein: the sliding piece is provided with symmetrically arranged sliding grooves, the eccentric shaft penetrates through the sliding grooves, and the hinge shaft of the connecting rod and the sliding piece is positioned on the symmetrical shaft of the sliding grooves.

7. The door lock apparatus according to claim 4, wherein: the driving part is provided with a cam, the sliding part is a transmission shaft fixed on the locking rod, and the driven part is provided with a curved contact surface in contact fit with the peripheral surface of the cam and a moving groove matched with the transmission shaft; the driven piece is hinged with the shell and is connected with the fixed shaft.

8. The door lock apparatus according to any one of claims 4 to 7, wherein: the movement direction of the locking rod is perpendicular to the movement direction of the stopper; and the stopper is located at one side of the housing in the direction in which the lock lever protrudes.

9. The door lock apparatus according to claim 8, wherein: the side surface of the locking rod is provided with a stop part, and the rear end of the stop is provided with a stop part; when the door cover control part is in a door opening state, the front end of the stop part is abutted with the stop part.

10. The door lock apparatus according to claim 1, wherein: the driving part comprises a driving motor, an output gear and an electrode inserting sheet, wherein the driving motor, the output gear and the electrode inserting sheet are positioned in the shell, the electrode inserting sheet is electrically connected with the driving motor, and the output gear is meshed with the output end of the driving motor.

11. The door lock apparatus according to claim 1, wherein: the shell is internally provided with a movable reed, a static reed and a signal processing element, wherein the movable reed is positioned between the static reed and the switching part, when the locking rod is in a locking state, the switching part pushes the movable reed to be in contact with the static reed, and the signal processing element outputs a door locking signal.

12. The door lock apparatus according to claim 1, wherein: the side of the locking rod is also provided with a deflector rod extending out of the shell.

13. The door lock apparatus according to claim 1, wherein: the shell is internally provided with a guide rail, and the switching part is provided with a guide groove which is in sliding fit with the guide rail.

14. A household appliance, characterized in that: comprising a door lock device according to any one of claims 1-13.