CN117108147A - Door lock for cleaning machine and cleaning machine - Google Patents

Abstract

The application relates to a door lock for a cleaning machine and the cleaning machine, comprising: the lock column is arranged on the upper surface of the door body; the locking piece is arranged at the top of the cleaner main body and is used for being matched with the lock column in an inserting way to lock the door body; the driving piece is arranged at the rear side of the locking piece in a manner of being capable of moving back and forth; and the limiting mechanism is used for limiting the driving piece in a door locking state and canceling the limitation of the driving piece when the door is automatically opened. In the door-closing state, the locking piece rotates to the locking opening to grasp the lock column, the driving piece enables the locking piece to be kept in the state, in the door-opening state, the locking piece rotates to the state that the locking opening is separated from the lock column and is positioned above the main body of the cleaning machine, the driving piece enables the locking piece to be kept in the state, and stability in the door-opening and door-closing states is improved; the locking piece keeps the trend of opening the door all the time, and when closing the door, the driving piece is spacing, and the locking piece can't remove and ensure the reliability of closing the door, and when automatic door opening, stop gear cancels the spacing to the driving piece, and the locking piece can break away from the lock post and open the door body certain angle voluntarily.

Description

Door lock for cleaning machine and cleaning machine

Technical Field

The application relates to the technical field of dish washers, in particular to a door lock for a cleaning machine and the cleaning machine.

Background

The dishwasher generally includes a body having a hollow washing chamber, an opening enabling the washing chamber to be opened is opened at a front side of the body, and a door body provided at the front side of the body for opening or closing the opening. The door body is usually locked to the body by means of a door lock in the closed state of the door body to ensure that the door body does not open during use of the dishwasher.

The Chinese patent with the publication number of CN214035161U (application number of CN 202021963616.6) discloses a door lock structure for locking a door body, which comprises the door body of the dishwasher and a lock tongue for locking the door body, wherein a buckling seat matched with the position of the lock tongue is arranged outside the door body, and the lock tongue can move to the buckling seat and is buckled with the buckling seat to lock the door body; the door body is provided with a mounting hole, a fixing piece for fixing the buckling seat is arranged in the door body, the buckling seat is provided with a connecting piece which can penetrate through the mounting hole and is inserted into the door body, and the connecting piece is connected with the fixing piece to fix the buckling seat on the door body.

The door body is convenient to lock on the body, but after the lock tongue is buckled into the pit, the lock tongue is accommodated in the pit and has no force on the door body, so that better sealing between the door body and the body is difficult to realize, even the door body can be in a natural eversion state by taking the bottom rotating shaft of the door body as a support, and further, the sealing between the door body and the body is adversely affected.

In order to solve the above-mentioned problem, the inventor's prior application CN202211108310.6 "door lock for cleaning machine and cleaning machine" discloses a structure, which is provided with a locking piece matched with a locking groove at the top of a door body, in a door closing state, a locking hook of the locking piece is turned down to be matched and clamped with the locking groove, a pushing component always pushes the rear end of the locking piece forward to enable the locking hook to be hooked and tightly matched with the inner wall of the locking groove, so that the door body always keeps a force of pressing the cleaning machine body, and the tightness between the door body and the body is improved; the door body can not apply overturning force to the locking piece any more in the moment that the locking hook breaks away from the locking groove in the door opening process, and at the moment, the driving component acts on the locking piece to enable the locking piece to continuously overturn backwards, so that the locking hook continuously moves upwards to be far away from the upper edge of the door body, interference between the locking hook and the upper edge of the door body of the cleaning machine in the door closing state is avoided, and the reliability of the door lock is improved. However, due to structural limitations, the door opening and closing actions can only be completed manually. After the washing machine is used for washing, a lot of high-temperature steam is often remained in the washing cavity, and when the door is opened manually, the common steam is easy to burn a user, so that the user experience is greatly influenced.

Disclosure of Invention

The first technical problem to be solved by the application is to provide a door lock for a cleaning machine, which can be used for manually opening the door and automatically opening the door in advance to release steam at a certain angle.

The second technical problem to be solved by the application is to provide a cleaning machine with the door lock aiming at the current state of the art.

The application solves at least one of the technical problems by adopting the following technical proposal:

a door lock for a washer, comprising:

the lock column is vertically arranged on the upper surface of the door body;

the locking piece is arranged at the top of the cleaning machine main body and is used for being in plug-in fit with the lock column to lock the door body, the locking piece can be arranged at the top of the cleaning machine main body in an up-down overturning manner, and a locking opening capable of grasping the lock column is formed in the front end of the locking piece;

the first torsion spring is connected with the locking piece and is used for enabling the locking piece to always keep the trend of overturning the locking port from bottom to top;

the driving piece is arranged on the rear side of the locking piece in a back-and-forth moving way, always keeps the trend of forward movement, and is used for providing auxiliary overturning force for the locking piece in the overturning process and providing position maintaining force for the locking piece in the overturning in-place state; and

and the limiting mechanism is arranged at the side of the driving piece and used for limiting the driving piece in a door locking state and canceling the limitation of the driving piece when the door is automatically opened.

Preferably, the limiting mechanism comprises a push rod and a push rod driving assembly, the push rod is arranged at the rear side of the driving piece in the moving direction of the vertical driving piece, the push rod driving assembly is used for driving the push rod to reciprocate in the moving direction of the vertical driving piece, and the front side of the push rod is provided with a limiting step which can be propped against the rear edge of the driving piece along with pushing out of the push rod and is separated from the rear edge of the driving piece along with resetting of the push rod. Through the structure, the position of the driving piece is convenient to limit.

Preferably, the push rod driving assembly is an electromagnetic driving assembly and comprises a first elastic piece which enables the push rod to keep pushing trend in the power-off state and an electromagnetic coil which can drive the push rod to overcome the elastic force of the first elastic piece to reset in the power-on state.

Preferably, the door closing device further comprises a first signal switch capable of transmitting a door closing signal to the controller in a door closing state, the first signal switch is linked with the push rod, and in the door closing state, the push rod is kept in a pushing-out state, and the first signal switch is limited and driven to be closed by the driving piece. The first signal switch is linked with the push rod, so that the door closing signal is indirectly detected, the whole structure is more compact, and the detection is accurate.

Preferably, the first signal switch comprises a first micro switch, a push plate and a second elastic piece, the trigger point of the first micro switch is arranged forward, the push plate can be arranged beside the first micro switch in a front-back moving way and is provided with a first part corresponding to the trigger point and a second part used for being linked with the push rod, and the second elastic piece is arranged at the rear side of the push plate and keeps the push plate moving forward all the time.

Preferably, the push plate is in an L-shaped structure, a transverse part of the L-shaped structure forms the first part and is positioned at the front side of the first micro switch, a vertical part of the L-shaped structure extends back and forth close to the side wall of the first micro switch, and a chute matched with the end part of the push rod in a guiding way is formed in the outer side wall of the vertical part of the L-shaped structure.

Preferably, the rear wall of the chute is formed as a first inclined surface inclined from inside to outside and from front to back, and correspondingly, at least the rear part of the end surface of the first end of the push rod is formed as a second inclined surface matched with the first inclined surface. The structure can enable the push plate to slide in a matched manner with the push rod, and the matching precision is improved.

Preferably, the door further comprises an arc-shaped hook piece and a second torsion spring, wherein the upper end of the arc-shaped hook piece can be rotationally restrained beside the locking piece, and the second torsion spring enables the lower end of the arc-shaped hook piece to always keep the trend of pressing the lower end of the arc-shaped hook piece against the inner wall surface of the door body. In the automatic door opening process, the locking piece cancels the limit with the lock column under the action of the first torsion spring and further changes the action relation with the driving piece, namely the force of the driving piece for the locking piece is converted from driving the locking piece to upward turning from downward turning, and in the process, the arc-shaped hook piece provides assistance for the action of the locking piece under the action of the second torsion spring so as to improve the reliability of automatic door opening.

Preferably, in the door-closed state, the lower back of the arc-shaped hook member abuts against the front end surface of the push plate to drive the first signal switch to be closed, and in the door-open state, the arc-shaped hook member is separated from the push plate to extend out of the opening of the cleaner body.

In order to be convenient for install, the rear side of driving piece is provided with the mounting bracket, the front portion of this mounting bracket is located to the driving piece can back and forth movement, be provided with the baffle that is located the driving piece rear side in the mounting bracket, be provided with the third elastic component that is used for making the driving piece remain the trend of moving forward all the time between driving piece rear portion and this baffle.

Preferably, a gap for the push rod to pass through is formed between the lower part of the baffle plate and the rear lower part of the driving piece.

Preferably, the mounting frame is movably arranged at the rear side of the locking piece in a back-and-forth manner, the push rod is movably connected to the output end of the push rod driving assembly in a back-and-forth manner, and the rear side of the baffle is provided with a fourth elastic piece which enables the mounting frame to always keep a forward movement trend. The structure is used for eliminating interference between the manual switch and the automatic door opening, when the door is opened manually, the push rod is in a state of limiting the driving piece, at the moment, the mounting frame integrally moves backwards, and the push rod is matched with the backward movement so as to complete manual door opening action without affecting the matching relation of all the components.

In order to improve the assembly reliability, the lateral part of mounting bracket is provided with the installation storehouse that is close to push rod drive assembly and arranges, the second end of push rod wears to locate in this installation storehouse and is provided with the slide that extends from beginning to end, push rod drive assembly's output and push rod's slide sliding fit. Preferably, the outer port of the chute is surrounded by a side wall of the mounting bin.

Preferably, the locking piece is in a C-shaped structure, a trigger arm extending backwards is arranged at the back of the locking piece, correspondingly, the front end face of the driving piece is shaped into a V-shaped structure with a tip extending forwards, and the trigger arm is in guide fit with two inclined planes corresponding to the V-shaped structure. The structure is convenient for realizing the conversion of the force matching relation between the locking piece and the driving piece in the door opening and closing state, so that the locking piece is limited in an upturning state in the door opening state, and the locking piece is prevented from being turned downwards to influence the next door closing action; in the door closing state, the locking piece is limited in a downward turning state, so that the locking piece is prevented from being turned upwards to influence locking, and the locking tightness between the door body and the cleaning machine main body is maintained.

Preferably, a second signal switch capable of transmitting a door closing signal to the controller in a door closing state is arranged beside the trigger arm, and the second signal switch is linked with the trigger arm.

Preferably, the second signal switch comprises a second micro switch and a trigger rod, the trigger point of the second micro switch is arranged towards the side wall of the trigger arm, the trigger rod can be arranged on the outer side of the trigger point of the second micro switch in a back-and-forth moving mode and extends towards the trigger arm, an inclined surface bulge is arranged on the side portion of the trigger arm, and correspondingly, a guide inclined surface matched with the inclined surface bulge in a door closing state is arranged at the end portion of the trigger rod.

The utility model provides a cleaning machine, includes cleaning machine main part and a body, the cleaning machine main part has washing chamber, lateral part open have with washing chamber be linked together uncovered, the lower limb of a body rotates to be connected in the uncovered lower limb department of cleaning machine main part, still includes the lock, the lock is located the top of cleaning machine for lock or unblock to cleaning machine main part top and door body top.

Compared with the prior art, the application has the advantages that: in the door-closing state, the locking piece rotates to the locking opening to grasp the lock column, the driving piece enables the locking piece to be kept in the state, and in the door-opening state, the locking piece rotates to the state that the locking opening is separated from the lock column and is positioned above the main body of the cleaning machine, and the driving piece enables the locking piece to be kept in the state, so that the stability of the door-opening and door-closing states is improved; the locking piece always keeps the trend of opening the door, when the door is closed, the driving piece is limited, the locking piece cannot move to ensure the reliability of closing the door, and when the door is automatically opened, the limiting mechanism cancels the limitation of the driving piece, and the locking piece can be automatically separated from the locking column to open the door body by a certain angle, so that steam is conveniently released, and high-temperature steam is prevented from burning users.

Drawings

FIG. 1 is a schematic view of a part of a cleaning machine (during the door closing process) according to an embodiment of the present application;

FIG. 2 is a schematic view of a part of a cleaning machine according to an embodiment of the present application (in a closed state);

FIG. 3 is a schematic view of a part of a cleaning machine according to an embodiment of the present application (in a door-opened state);

FIG. 4 is a cross-sectional view of a cleaning machine according to an embodiment of the present application;

FIG. 5 is a schematic view of a door lock according to an embodiment of the present application;

FIG. 6 is a schematic view of the bottom structure of FIG. 5;

FIG. 7 is a schematic view of the upper part of the hidden housing of the door lock according to the embodiment of the present application;

FIG. 8 is a cross-sectional view of a door lock according to an embodiment of the present application;

FIG. 9 is a schematic view of a locking member according to an embodiment of the present application;

fig. 10 is a schematic structural view of a driving member according to an embodiment of the present application.

Detailed Description

The application is described in further detail below with reference to the embodiments of the drawings.

The door lock for a washer of the present embodiment may be used in a dishwasher, and may be used in other containers having the same door locking requirements as the present embodiment, which is described with respect to a washer.

As shown in fig. 1 to 10, the cleaning machine of the present embodiment includes a cleaning machine main body 1 and a door body 2, the cleaning machine main body 1 has a washing chamber 11, an opening 12 communicating with the washing chamber 11 is opened at a side portion, a lower edge of the door body 2 is rotatably connected to a lower edge of the opening 12 of the cleaning machine main body 1, and at least an inner side portion of the door body 2 is embedded into the opening 12 of the cleaning machine main body 1 when the door is closed. The top of the cleaning machine is provided with a door lock 3 for locking or unlocking the top of the cleaning machine body 1 and the top of the door body 2.

In this embodiment, as shown in fig. 5 to 10, the door lock 3 includes a lock cylinder 31, a locking member 32, a first torsion spring 10, a driving member 33, and a limiting mechanism 34, each component of the door lock 3 is mounted in a flat housing 35, and the locking member 32 that is required to be engaged with the door body 2 is partially exposed under the housing 35 during the door opening process. The lock column 31 is vertically arranged on the upper surface of the door body 2, and the locking piece 32 is arranged at the top of the cleaning machine main body 1 and is used for being in plug-in fit with the lock column 31 to lock the door body 2. The locking member 32 is provided on the top of the cleaner body 1 so as to be vertically turnable, the locking member 32 is rotatably connected to the housing 35 via shafts on both sides thereof, an opening 351 is provided in the bottom wall of the housing 35 for the locking member 32 to be partially turned over below the housing 35, and a locking opening 321 is provided at the front end of the locking member 32 so as to be able to grasp the locking post 31 therein. The first torsion spring 10 is connected with the shaft at one side of the locking member 32, so that the locking member 32 always maintains the tendency of the locking notch 321 to turn over from bottom to top. The driving member 33 is provided on the rear side of the locking member 32 to be movable back and forth, and always maintains a forward movement tendency, for providing an auxiliary turning force to the locking member 32 during turning thereof, and a position maintaining force to the locking member 32 in a turned-in-place state. The limiting mechanism 34 is disposed beside the driving member 33, and is used for limiting the driving member 33 in a door locking state, and canceling the limitation of the driving member 33 when the door is automatically opened.

In the door-closed state, the locking piece 32 is rotated to the locking notch 321 to grasp the lock cylinder 31 therein, and the driving piece 33 keeps the locking piece 32 in this state; in the door-open state, the locking piece 32 is rotated until the locking notch 321 is separated from the locking post 31 and is located above the main body 1 of the cleaning machine, and the driving piece 33 maintains the locking piece 32 in this state, thereby improving the stability in the door-open and door-closed states. The locking piece 32 keeps the trend of opening the door all the time, and when closing the door, the driving piece 33 is spacing, and locking piece 32 can't remove and ensure the reliability of closing the door, and when automatic door opening, stop gear 34 cancels the spacing to driving piece 33, and locking piece 32 can break away from lock post 31 voluntarily and open certain angle with door body 2, conveniently releases steam, avoids high temperature steam to burn the user.

In the present embodiment, the limiting mechanism 34 includes a push rod 341 and a push rod driving assembly 342, the push rod 341 is disposed at the rear side of the driving member 33 in the moving direction of the driving member 33, the push rod driving assembly 342 is used for driving the push rod 341 to reciprocate in the moving direction of the driving member 33, and the front side of the push rod 341 is provided with a limiting step 3411 which can be abutted against the rear edge of the driving member 33 along with the push of the push rod 341 and separated from the rear edge of the driving member 33 along with the reset of the push rod 341. With the above structure, the position of the driving piece 33 is convenient to be limited.

The push rod driving assembly 342 is an electromagnetic driving assembly, and includes a first elastic member 3421 (which is a spring) that keeps the push rod 341 pushing out in the power-off state, and an electromagnetic coil 3422 that can drive the push rod 341 to overcome the elastic force of the first elastic member 3421 to reset in the power-on state, and the specific matching structure is the prior art and will not be described herein.

The present embodiment is provided with a first signal switch 100 capable of transmitting a door closing signal to the controller in a door closing state, the first signal switch 100 is associated with a push rod 341, and in the door closing state, the push rod 341 maintains a push-out state, limits the driving member 33, and drives the first signal switch 100 to be closed. The first signal switch 100 is linked with the push rod 341, so that the door closing signal is indirectly detected, the whole structure is more compact, and the detection is accurate.

The first signal switch 100 includes a first micro switch 101, a push plate 102, and a second elastic member 103 (which is a spring), where a trigger point 1011 of the first micro switch 101 is disposed forward, the push plate 102 is movably disposed beside the first micro switch 101 and has a first portion corresponding to the trigger point and a second portion for linking with the push rod 341, and the second elastic member 103 is disposed at a rear side of the push plate 102 and keeps the push plate 102 moving forward all the time.

The push plate 102 has an L-shaped structure, a transverse portion of the L-shaped structure forms a first portion and is located at the front side of the first micro switch 101, a vertical portion of the L-shaped structure extends back and forth close to the side wall of the first micro switch 101, and a chute 104 that is in guiding fit with the end of the push rod 341 is opened on the outer side wall of the vertical portion of the L-shaped structure. The rear wall of the chute 104 is formed as a first inclined surface 105 inclined from the inside to the outside and from the front to the back, and correspondingly, the end surface of the first end of the push rod 341 is formed at least at the rear as a second inclined surface 3412 matching the first inclined surface 105. This structure enables the push plate 102 to slide in cooperation with the push rod 341, improving the precision of the cooperation.

In this embodiment, an arc-shaped hook 36 and a second torsion spring 20 for providing an auxiliary force for automatically opening the door are provided, the upper end of the arc-shaped hook 36 is rotatably restrained in the housing 35 by a rotating shaft, and the second torsion spring 20 is connected to a shaft on one side of the arc-shaped hook 36 beside the locking member 32, so that the lower end of the arc-shaped hook 36 always keeps a tendency of pressing against the inner wall surface of the door body 2. In the automatic door opening process, the locking piece 32 and the lock column 31 cancel limit under the action of the first torsion spring 10, and further cooperate with the driving piece 33 to change the action relation between the locking piece 32 and the driving piece 33, namely the force given by the driving piece 33 to the locking piece 32 is converted from driving the locking piece to downwards overturning to upwards overturning, and in the process, the arc-shaped hook piece 36 provides assistance for the action of the locking piece 32 under the action of the second torsion spring 20, so that the reliability of automatic door opening is improved.

In the closed state, the lower back of the arc-shaped hook 36 abuts against the front end surface of the push plate 102 to drive the first signal switch 100 to close. In the open state, the arc-shaped hook 36 is separated from the push plate 102 to extend out of the opening 12 of the cleaner body 1, and an opening for exposing the arc-shaped hook 36 under the housing 35 is opened at the bottom of the housing 35.

In this embodiment, a mounting frame 37 is disposed at the rear side of the driving member 33, the driving member 33 is movably disposed at the front of the mounting frame 37, a baffle 371 disposed at the rear side of the driving member 33 is disposed in the mounting frame 37, and a third elastic member 330 (a spring) for keeping the driving member 33 always moving forward is disposed between the rear side of the driving member 33 and the baffle 371. A gap through which the push rod 341 passes is formed between the lower portion of the shutter 371 and the rear lower portion of the driving member 33.

The mounting frame 37 is movably disposed at the rear side of the locking member 32 and is restrained in the housing 35, the push rod 341 is movably connected to the output end of the push rod driving assembly 342, and a fourth elastic member 372 (a spring) for keeping the mounting frame 37 always moving forward is disposed at the rear side of the shutter 371. This structure is in order to eliminate the interference between manual switch and automatic door opening, and when the door is opened manually, the push rod 341 is in a state of limiting the driving member 33, and at this time, the mounting frame 37 is moved backward as a whole, and the push rod 341 is moved backward in cooperation to complete the manual door opening action without affecting the cooperation relationship of the respective members.

In order to improve the assembly reliability, the side of the mounting frame 37 is provided with a mounting compartment 373 arranged close to the push rod driving assembly 342, and the second end of the push rod 341 is arranged in the mounting compartment 373 in a penetrating manner and is provided with a slide 343 extending back and forth, and the output end of the push rod driving assembly 342 is in sliding fit with the slide 343 of the push rod 341. The outer port of the slide 343 is surrounded by the side wall of the mounting chamber 373.

In this embodiment, the locking member 32 has a C-shaped structure, the back of the locking member 43 is provided with a trigger arm 322 extending backward, and correspondingly, the front end surface of the driving member 33 is formed into a V-shaped structure 331 with a tip extending forward, and the trigger arm 322 is in guiding engagement with two inclined surfaces corresponding to the V-shaped structure. The structure is convenient for realizing the conversion of the force matching relationship between the locking piece 32 and the driving piece 33 in the door opening and closing state, so that the locking piece 32 is limited in the upturning state in the door opening state, and the locking piece is prevented from being turned downwards to influence the next door closing action; in the door-closed state, the locking piece 32 is limited in the turned-down state, prevents the turning-up thereof from affecting locking, and maintains locking tightness between the door body 2 and the cleaner body 1.

A second signal switch 200 capable of transmitting a door closing signal to the controller in a door closing state is provided at a side of the trigger arm 322, and the second signal switch 200 is coupled with the trigger arm 322. The second signal switch 200 comprises a second micro switch 201 and a trigger lever 202, wherein a trigger point of the second micro switch 201 is arranged towards a side wall of the trigger arm 322, the trigger lever 202 is movably arranged on the outer side of the trigger point of the second micro switch 201 back and forth and extends towards the trigger arm 322, an inclined plane protrusion 323 is arranged on the side portion of the trigger arm 322, and a guide inclined plane 203 which can be matched with the inclined plane protrusion 323 in a door closing state is correspondingly arranged on the end portion of the trigger lever 202.

The door opening and closing process of the embodiment is as follows:

the door closing process is to manually close the door: the door body 2 is pushed inwards, the lock cylinder 31 contacts with the locking opening 321 of the locking piece 32, the lock cylinder 31 is pressed against the rear edge wall of the locking opening 321, the locking piece 32 is driven to overturn downwards against the elasticity of the back of the driving piece 33 under the action of pushing the door until the matching surface of the trigger arm 322 and the front end of the driving piece 33 is switched from an upper inclined surface to a lower inclined surface, the door body 2 is pushed continuously until the locking opening 321 of the locking piece 32 completely grabs the lock cylinder 31; at this time, the lower end of the arc-shaped hook 36 abuts against the upper surface of the door body 2, and does not push the door body 2 outwards, and does not affect the tightness of the door body 2;

after the door is closed, the first signal switch 100 and the second signal switch 200 are closed, signals are transmitted to the controller, and the cleaning machine can perform cleaning work;

the door opening process can be manual door opening or automatic door opening, and when the door is opened manually:

the door body 2 is pulled outwards, the trigger arm 322 at the rear end of the locking piece 32 overturns upwards against the elasticity behind the driving piece 33 until the matching surface of the trigger arm 322 and the front end of the driving piece 33 is switched from a lower inclined surface to an upper inclined surface, at this time, under the action of the first torsion spring 10, the locking piece 32 has a trend of overturning upwards, and under the action of the second torsion spring 20, the lower end of the arc-shaped hook 36 abuts against the inner side wall of the door body 2 to keep a trend of pushing the door body 2 outwards, so that the door body 2 can be opened in a labor-saving manner; in the above process, when the driving member 33 moves backward under the action of the door opening force, the whole mounting frame 37, the push rod 341 and the driving member 33 move backward;

when the door is automatically opened:

the push rod driving assembly 342 is electrified to pull the push rod 341 back, the limit of the limit step 3411 to the driving piece 33 is cancelled, the driving piece 33 moves backwards on the mounting frame 37 under the action of the first torsion spring 10 through the upward turning of the locking piece 32, the matching surface between the trigger arm 322 and the front end of the driving piece 33 is switched from a lower inclined surface to an upper inclined surface, at the moment, the lower end of the arc-shaped hook piece 36 abuts against the inner side wall of the door body 2 to keep the trend of pushing the door body 2 outwards, the door body 2 is further opened by an angle, and high-temperature steam is released.

In the description and claims of the present application, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present application, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the application may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims (18)

1. A door lock for a washer, characterized by: comprising

The lock column (31) is vertically arranged on the upper surface of the door body (2);

the locking piece (32) is arranged at the top of the cleaning machine main body (1) and is used for being in plug-in fit with the lock column (31) to lock the door body (2), the locking piece (32) can be arranged at the top of the cleaning machine main body (1) in an up-down overturning manner, and a locking opening (321) capable of holding the lock column (31) therein is formed in the front end of the locking piece (32);

the first torsion spring (10) is connected with the locking piece (32) and is used for enabling the locking piece (32) to always keep the trend of the locking opening (321) turning from bottom to top;

the driving piece (33) is arranged on the rear side of the locking piece (32) in a back-and-forth moving way and always keeps the forward moving trend, and is used for providing auxiliary overturning force for the locking piece (32) in the overturning process and providing position maintaining force for the locking piece (32) in the overturning in-place state; and

and the limiting mechanism (34) is arranged at the side of the driving piece (33) and is used for limiting the driving piece (33) in a door locking state and canceling the limitation of the driving piece (33) when the door is automatically opened.

2. The door lock for a washer according to claim 1, wherein: the limiting mechanism (34) comprises a push rod (341) and a push rod driving assembly (342), the moving direction of the push rod (341) vertical driving piece (33) is arranged at the rear side of the driving piece (33), the push rod driving assembly (342) is used for driving the push rod (341) to reciprocate along the moving direction of the push rod (33), and a limiting step (3411) which can be propped against the rear edge of the driving piece (33) along with pushing of the push rod (341) and is separated from the rear edge of the driving piece (33) along with resetting of the push rod (341) is arranged at the front side of the push rod (341).

3. The door lock for a washer according to claim 2, wherein: the push rod driving assembly (342) is an electromagnetic driving assembly and comprises a first elastic piece (3421) which enables the push rod (341) to keep pushing trend in the power-off state and an electromagnetic coil (3422) which can drive the push rod (341) to overcome the elastic force of the first elastic piece (3421) to reset in the power-on state.

4. The door lock for a washer according to claim 2, wherein: the door closing device further comprises a first signal switch (100) which can transmit a door closing signal to the controller in a door closing state, wherein the first signal switch (100) is linked with the push rod (341), and in the door closing state, the push rod (341) keeps in a push-out state, limits the driving piece (33) and drives the first signal switch (100) to be closed.

5. The door lock for a washer according to claim 4, wherein: the first signal switch (100) comprises a first micro switch (101), a push plate (102) and a second elastic piece (103), wherein a trigger point of the first micro switch (101) is arranged forward, the push plate (102) can be arranged at the side of the first micro switch (101) in a front-back moving mode and is provided with a first part corresponding to the trigger point and a second part used for being linked with the push rod (341), and the second elastic piece (103) is arranged at the rear side of the push plate (102) and enables the push plate (102) to always keep a forward moving trend.

6. The door lock for a washer according to claim 5, wherein: the push plate (102) is of an L-shaped structure, the transverse part of the L-shaped structure forms the first part and is positioned at the front side of the first micro switch (101), the vertical part of the L-shaped structure is close to the side wall of the first micro switch (101) and extends forwards and backwards, and a chute (104) which is in guide fit with the end part of the push rod (341) is formed in the outer side wall of the vertical part of the L-shaped structure.

7. The door lock for a washer according to claim 6, wherein: the rear wall of the chute (104) is formed into a first inclined surface (105) inclined from inside to outside and from front to back, and correspondingly, at least the rear part of the end surface of the first end of the push rod (341) is formed into a second inclined surface (3412) matched with the first inclined surface (105).

8. The door lock for a washer according to claim 5, wherein: the door further comprises an arc-shaped hook piece (36) and a second torsion spring (20), wherein the upper end of the arc-shaped hook piece (36) can be rotationally restrained beside the locking piece (32), and the second torsion spring (20) enables the lower end of the arc-shaped hook piece (36) to always keep the trend of pressing the lower end to the inner wall surface of the door body.

9. The door lock for a washer according to claim 8, wherein: in the door-closing state, the lower back of the arc-shaped hook piece (36) abuts against the front end face of the push plate (102) to drive the first signal switch (100) to be closed, and in the door-opening state, the arc-shaped hook piece (36) is separated from the push plate (102) to extend out of the opening of the cleaner body.

10. The door lock for a washer according to claim 2, wherein: the rear side of driving piece (33) is provided with mounting bracket (37), the front portion of this mounting bracket (37) is located in driving piece (33) can back and forth movement ground, be provided with baffle (371) that are located driving piece (33) rear side in mounting bracket (37), be provided with between driving piece (33) rear portion and this baffle (371) and be used for making driving piece (33) remain all the time forward movement trend's third elastic component (370).

11. The door lock for a washer according to claim 10, wherein: a gap for the push rod (341) to pass through is formed between the lower part of the baffle plate (371) and the rear lower part of the driving piece (33).

12. The door lock for a washer according to claim 11, wherein: the mounting frame (37) can be arranged on the rear side of the locking piece (32) in a back-and-forth moving mode, the push rod (341) can be connected to the output end of the push rod driving assembly (342) in a back-and-forth moving mode, and the rear side of the baffle plate (371) is provided with a fourth elastic piece (372) enabling the mounting frame (37) to always keep the forward moving trend.

13. The door lock for a washer according to claim 12, wherein: the side of mounting bracket (37) is provided with installation storehouse (373) that are close to push rod drive assembly (342) and arrange, the second end of push rod (341) wears to locate in this installation storehouse (373) and is provided with slide (343) that extend around, the output of push rod drive assembly (342) and slide (343) sliding fit of push rod (341).

14. The door lock for a washer according to claim 13, wherein: the outer port of the slide (343) is surrounded by the side wall of the mounting bin (373).

15. The door lock for a cleaning machine according to any one of claims 1 to 14, wherein: the locking piece (32) is of a C-shaped structure, a trigger arm (322) extending backwards is arranged on the back of the locking piece (32), correspondingly, the front end face of the driving piece (33) is shaped into a V-shaped structure with a tip extending forwards, and the trigger arm (322) is in guide fit with two inclined planes corresponding to the V-shaped structure.

16. The door lock for a washer of claim 15, wherein: a second signal switch (200) capable of transmitting a door closing signal to the controller in a door closing state is arranged beside the trigger arm (322), and the second signal switch (200) is linked with the trigger arm (322).

17. The door lock for a washer of claim 16, wherein: the second signal switch (200) comprises a second micro switch (201) and a trigger rod (202), a trigger point of the second micro switch (201) is arranged towards the side wall of the trigger arm (322), the trigger rod (202) can be arranged on the outer side of the trigger point of the second micro switch (201) in a back-and-forth moving mode and extends towards the trigger arm (322), an inclined plane protrusion (323) is arranged on the side portion of the trigger arm (322), and correspondingly, a guide inclined plane (203) which can be matched with the inclined plane protrusion (323) in a door closing state is arranged on the end portion of the trigger rod (202).

18. The utility model provides a cleaning machine, includes cleaning machine main part (1) and door body (2), cleaning machine main part (1) have washing chamber (11), the lateral part open have with washing chamber (11) be linked together open (12), the lower limb of door body (2) rotates and connects in opening (12) lower limb department of cleaning machine main part (1), its characterized in that: the door lock is arranged at the top of the cleaning machine and is used for locking or unlocking the top of the cleaning machine main body (1) and the top of the door body (2).