CN115234087A

CN115234087A - Door lock structure for household appliance and household appliance

Info

Publication number: CN115234087A
Application number: CN202210460189.7A
Authority: CN
Inventors: 王式兴; 何小磊; 朱开杰
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-10-25
Anticipated expiration: 2042-04-24
Also published as: CN115234087B

Abstract

The invention relates to a door lock structure for a household appliance and the household appliance, wherein the door lock structure comprises a shell; a top rod; locking; the locating element can be located in the casing with removing along the third direction, just the locating element can be inconsistent all the time with the second part of hasp in order to restrict the rotation of hasp, the wall that the locating element contradicts with the hasp includes first inclined plane portion, first inclined plane portion inclines towards the direction of keeping away from the hasp along the forward of first direction, is in under the lock-out state at the hasp, the second part of hasp offsets with the first inclined plane portion of locating element. When the door is opened, the force which needs to be overcome by the lock catch is larger, so that the door body cannot be completely opened easily at a time, the door opening process is more stable, and the safety is good; and because the door opening force is large, the door body is not easy to be opened by mistake.

Description

Door lock structure for household appliance and household appliance

Technical Field

The invention relates to the technical field of household appliances, in particular to a door lock structure for a household appliance and the household appliance.

Background

For the box body with the functional inner cavity, due to functional requirements, a door body capable of opening or covering the port is usually arranged at the port of the box body, and the door body needs to be locked relative to the box body in the using process of the box body.

For example, the chinese invention patent application No. CN200410043122.5, door opening and closing mechanism and dish washing machine having the same (application publication No. CN 1550202A), discloses a structure including: a door rotatably disposed to open and close a dish inlet provided in the dish washing machine, and a rotation assisting mechanism for applying a rotation assisting force to the door in accordance with a rotation operation of the door; the rotation assisting mechanism applies a rotation assisting force to the door in a closing direction when the door is in a predetermined angle range from a closed state. Although the door body can be locked on the tableware washing machine, the locking structure is complex, the dependence on electric parts and control modes is high, the action logic of the door lock is complex, faults are easy to occur, and the reliability is low.

In order to solve the problems, the invention discloses a door lock structure for an electric appliance and a cleaning machine applying the door lock structure, which are disclosed in the Chinese patent application with the patent number of CN201910933576.6 (with the publication number of CN 112576111A), and the door lock structure comprises a shell, a lock rod, an ejector piece, a lock catch and a driving mechanism, when a door body is closed, the door body can downwards abut against the ejector piece, the ejector piece drives the lower end of the lock catch to downwards move, so that the upper end of the lock catch of a C-shaped structure deflects towards the upper part of the ejector piece to be buckled with a C-shaped lock hook at the lower end of the lock rod, and the self-locking of the door body is realized; and the door lock structure of the patent is realized by a mechanical structure, has low requirements on electric control logic and high reliability, and can reliably realize door opening and closing.

If the lock catch is easy to rotate when the door is opened, the door body can be easily opened, the door body is suddenly and completely opened, the hot steam in the liner easily blows out from the surface in a large area, a user is easily scalded, and the safety is poor. For household appliances with built-in dangerous objects, such as steam boxes, cleaning machines, ovens and the like with hot steam after work is finished, good door-closing force should be as small as possible so as to facilitate the user to close the door, and good door-opening force should be as large as possible on the premise of not influencing the hand feeling of the user so as to ensure the door-locking function.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a door lock structure for a household appliance with a large door opening force, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a door lock structure for a household appliance, which has a door opening force greater than a door closing force, in view of the current situation of the prior art.

The third technical problem to be solved by the present invention is to provide a household appliance applying the door lock structure in view of the current situation of the prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a door lock structure for a home appliance includes

A first side wall of the shell is provided with a lockhole which runs through the wall thickness;

the ejector rod is arranged on one side of the first side wall of the shell and can move towards the direction close to the lock hole or away from the lock hole, the ejector rod extends along the moving direction of the ejector rod, the first end of the ejector rod can penetrate through the lock hole so that the part of the ejector rod is positioned in the shell, a lock notch is formed in the position, close to the first end, of the ejector rod, the end part of the first end, located beside the lock notch, of the ejector rod is of a columnar structure, the moving direction of the ejector rod is defined as the first direction, and the moving direction of the ejector rod towards the direction away from the lock hole is defined as the forward direction of the first direction;

the lock catch is rotatably arranged in the shell around an axis extending along the second direction, the lock catch is sequentially divided into a first part and a second part along the forward direction of the third direction, the first direction, the second direction and the third direction are mutually perpendicular in pairs, the first part is close to the lock hole, a locking groove with a C-shaped opening is formed in the first part, and the lock catch can rotate to a locking state that the locking groove limits the columnar structure of the ejector rod in the locking state and locks the ejector rod and an unlocking state that the opening of the locking groove faces the lock hole to allow the columnar structure of the ejector rod to be separated from the locking groove;

it is characterized by also comprising

The setting element can be followed the third direction and is located in the casing with removing, just the setting element can be inconsistent all the time with the second part of hasp in order to restrict the rotation of hasp, the wall that offsets with the hasp of setting element includes first inclined plane portion, first inclined plane portion inclines towards the direction of keeping away from the hasp along the forward of first direction, is in under the lock locked state at the hasp, the second part of hasp offsets with the first inclined plane portion of setting element.

The technical solution adopted by the present invention to solve the second technical problem is as follows: the wall that offsets with the hasp of setting element includes continuous plane portion and first inclined plane portion, plane portion extends along first direction, is in under the unblock state at the hasp, the second part of hasp offsets with the plane portion of setting element.

In order to make the positioning piece and the lock catch always touch each other, the door lock structure further comprises a first elastic piece acting on the positioning piece to make the positioning piece always keep the trend of touching the lock catch.

In order to facilitate the hasp to offset with first inclined plane portion, the periphery profile of the second part of hasp is including setting gradually and continuous first arcwall face, connecting face and second arcwall face, the rotation center of hasp is close to the inward flange setting in the middle part of locking groove. When the lock catch is locked, the ejector rod pushes the lock catch to rotate anticlockwise, the first arc-shaped surface of the lock catch abuts against the plane part on the positioning piece, the positioning piece moves towards the positive direction of the third direction along with the rotation of the lock catch, and the first elastic piece is compressed; when the hasp rotates to connect the face and the department of linking of first inclined plane portion and planar portion to offset, is in the turning point of hasp this moment, after having crossed the turning point, along with the continuation of ejector pin to the reverse movement of first direction, because the radius of second arcwall face reduces gradually, the setting element can be towards the reverse movement of third direction under the effect of first elastic component, and frictional force between first inclined plane portion and the second arcwall face diminishes, and the hasp overturns to the lock-out condition rapidly.

Under the state that second arcwall face and first inclined plane portion offset, the power that the setting element was applyed to the hasp decomposes into along the power of first direction forward and along the power of third direction forward, and the hasp need overturn along the first direction forward when locking state is rotatory towards the unblock state, because the power that the drive plate was applyed on the hasp is opposite with the direction of rotation of hasp like this, the power that needs to overcome during the event unblock is great, and the setting element has produced moment of torsion F2L 2 between the pressure F2 of hasp and the distance L2 of the centre of rotation of hasp, leads to unblock power grow.

In order to improve the use safety of the door lock, a first microswitch and a first trigger piece are arranged in the shell, and the first microswitch is provided with a first contact; the first trigger piece comprises a first reed and a second contact, one end of the first reed is fixedly arranged relative to the shell, the second contact is arranged on the first reed and close to the free end of the first reed, and the second contact always keeps the trend of being abutted against or separated from the first contact under the action of the first reed;

the shell is also movably provided with a first linkage piece connected with the positioning piece, and the first reed is positioned on the moving path of the first linkage piece, so that the first contact is contacted with or separated from the second contact when the lock catch is in a locking state. Through setting up micro-gap switch, make only when the hasp is in the locking state, can start the equipment of using the lock structure, avoided equipment mistake to start and lead to the incident.

In order to make first linkage and setting element link mutually, be equipped with on the wall of setting element along the second inclined plane that extends and towards the forward or the reverse slope of second direction of third direction, first linkage is shaft-like, the one end of first linkage is equipped with along the gliding slider of second inclined plane, the middle part of first linkage is installed in the casing through the installation axle rotation of vertical extension, first reed is located the removal route of the other end of first linkage. When the positioning piece moves back and forth, the first linkage piece is driven to rotate, so that the other end of the first linkage piece pushes the first reed, and the first contact and the second contact are contacted or separated.

If first linkage is rectangular form, if the distance between second contact and the second inclined plane is far away, then need be great with the length design of first linkage, the volume of casing also can grow along with it then, is unfavorable for installing on submitting less domestic appliance, so first linkage includes integrative first extension arm and the second extension arm that links to each other, and the junction of first extension arm and second extension arm passes through the installation axle rotates and locates in the casing, the slider is located on the first extension arm, first reed is located the removal route of second extension arm. Therefore, the first linkage part is small in size, so that the whole door lock structure is small in size and convenient to mount on the household appliance.

If chopsticks or spoons and the like extend into the lock hole of the shell to push the lock catch to turn over, the micro switch can still be triggered mistakenly, and a signal is sent to the controller, so that a second micro switch and a second trigger piece are arranged in the shell, and the second micro switch is provided with a third contact point; the second trigger piece comprises a second reed and a fourth contact, one end of the second reed is fixedly arranged relative to the shell, the fourth contact is arranged on the second reed and close to the free end of the second reed, and the fourth contact always keeps the trend of being abutted against or separated from the third contact under the action of the second reed;

and a second linkage member connected with the ejector rod is movably arranged in the shell, and the second reed is positioned on a moving path of the second linkage member, so that the third contact is in contact with or separated from the fourth contact when the lock catch is in a locking state. Therefore, only when the top of the ejector rod is locked in the locking groove, the third contact and the fourth contact can be separated or contacted, and the micro switch can be triggered.

The second linkage member may have a variety of configurations, and preferably the second linkage member comprises

The first moving block is arranged in the shell in a movable mode along a first direction, at least part of the first moving block can abut against the first end of the ejector rod, and a third inclined surface which inclines from the positive direction to the direction far away from the first moving block along the reverse direction of the first direction is arranged on the first moving block;

the second elastic piece acts on the first moving block to enable the first moving block to always keep the trend of moving in the positive direction of the first direction;

one end of the connecting rod is positioned on the third inclined surface and can slide along the third inclined surface;

the second moving block is positioned on the moving path of the other end of the connecting rod;

the second reed is positioned on the moving path of the second moving block.

The second linkage member of the embodiment has a compact structure and occupies a small space.

In order to enable the second reed to be located on the moving path of the second moving block, a groove is formed in the second moving block, and the free end of the second reed extends into the groove.

The technical scheme adopted by the invention for solving the third technical problem is as follows: an electrical apparatus of using above-mentioned lock structure, its characterized in that: the box body is internally provided with a chamber with an opening at one side, the door body can be movably arranged at the opening of the box body so as to open and close the chamber, the ejector rod can be movably arranged on the side wall of the box body along the first direction, and the shell is arranged on the door body.

The household appliance can be a steam box, an oven and the like, in the scheme, the household appliance is a cleaning machine, the top of the box body is open, the first direction is the vertical direction, the second direction is the left-right direction, and the third direction is the front-back direction; or the household appliance is a cleaning machine, the front side of the box body is open, the first direction is the front-back direction, the second direction is the left-right direction, and the third direction is the up-down direction. When a user opens the door, the force required to be applied is large, so that the door body cannot be completely opened at a time easily, large-area steam pavement is caused, the door opening process is stable, and the safety is good.

Compared with the prior art, the invention has the advantages that: 1. in the locking state of the lock catch, the second part of the lock catch is abutted against the first inclined surface part on the positioning piece, so that the force applied to the lock catch by the positioning piece is decomposed into a force along the forward direction of the first direction and a force along the forward direction of the third direction, and when the lock catch rotates from the locking state to the unlocking state, the lock catch needs to be turned over along the forward direction against the first direction, so that the direction of the force applied to the lock catch by the positioning piece is opposite to the rotating direction of the lock catch, and when the door is opened, the force required to be overcome by the lock catch is larger, so that the door body cannot be completely opened easily at once, the door opening process is more stable, and the safety is good; the door body is not easy to be opened by mistake because of large door opening force; 2. the hasp of this application is under the unblock state, and the second part of hasp offsets with the plane portion on the setting element, and the power that the setting element was exerted on the hasp like this is along third direction forward, can not produce too big resistance to the upset of hasp, and the power that the hasp need be overcome when opening the door promptly is greater than the power that the hasp need overcome when closing the door, and the user can be relatively easy closing the door, but needs certain power just can open the door, and the use when opening the door feels good like this.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the present invention (with the latch in a locked state);

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of the door lock structure of FIG. 1;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a schematic structural view of FIG. 5 with the stem and the first housing removed;

FIG. 7 is a schematic view of the structure of FIG. 6 with the second housing removed;

FIG. 8 is a schematic view of the structure of FIG. 7 in another direction;

FIG. 9 is a schematic structural view of the positioning member shown in FIG. 8;

FIG. 10 is a schematic view of the latch of FIG. 8;

FIG. 11 is a schematic structural view of the positioning member and the first linkage member of FIG. 8;

FIG. 12 is a schematic view of the states of the first and second microswitches of FIG. 1;

FIG. 13 is a cross-sectional view of an embodiment of the present invention (with the latch unlocked);

FIG. 14 is a schematic view of the states of the first and second microswitches of FIG. 13;

fig. 15 is a cross-sectional view of an embodiment of the invention (with the shackle past the upset point but not in the locked condition).

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 15, the household appliance of the preferred embodiment is a washing machine, especially an embedded washing machine, which can wash vegetables, fruits or tableware, but the household appliance of the present application is not limited to a washing machine, and may also be a steam box, an oven, etc.

As shown in fig. 1 to 3, the household appliance includes a box body 1, a door 2 and a door lock structure a, wherein the box body 1 has a chamber 11 with an open front, the door 2 is movably disposed at the open of the box body 1, for example, one end of the door 2 is rotatably connected to the side of the box body 1, and the other end is detachably connected to the box body 1 through the door lock structure a, so that the door 2 can open and close the chamber 11; or the door body 2 can be arranged at the opening of the box body 1 in a drawing way.

As shown in fig. 1 to 5, the door lock structure a includes a housing 3, a plunger 4, a latch 5, a positioning member 6, a first micro switch 71, a first trigger 72, a second micro switch 81, a second trigger 82, and the like, the housing 3 is disposed on the door body 2, the housing 3 is formed by a first housing 301 and a second housing 302 in a closed manner, a lock hole 31 penetrating through a wall thickness is formed in a side wall of the second housing 302, and the side wall provided with the lock hole 31 is defined as a first side wall 30 of the housing 3.

The push rod 4 is arranged on the side wall of the box body 1 in a manner of being capable of moving back and forth under the action of a driving mechanism (such as a motor), namely, the push rod 4 is arranged on the rear side of the shell 3 in a manner of being capable of moving back and forth, the push rod 4 can move forward and can penetrate through the lock hole 31 and be partially positioned in the shell 3, a lock notch 41 is formed in the position, adjacent to the first end, of the push rod 4, and the end portion, located at the side of the lock notch 41, of the first end of the push rod 4 is of a columnar structure 42, namely, the end portion, located in front of the lock notch 41, of the push rod 4 is of a columnar structure 42.

The latch 5 is sequentially divided into a first portion 5a and a second portion 5b from top to bottom, in this embodiment, the first portion of the latch 5 is an upper portion of the latch 5, the upper portion of the latch 5 has a locking groove 51 with a C-shaped opening, the latch 5 is disposed in the housing 3 and located in front of the locking hole 31, the latch 5 can rotate around an axis of the pin 50 extending in the left-right direction, the latch 5 can rotate to a locking state (shown in fig. 3) in which the locking groove 51 limits the columnar structure 42 of the top rod 4 to lock the top rod 4, and an unlocking state (shown in fig. 13) in which the opening of the locking groove 51 faces backward to allow the columnar structure 42 of the top rod 4 to be disengaged from the locking groove 51.

The positioning element 6 can be arranged in the housing 3 in a vertically movable manner, and the positioning element 6 always keeps the trend of moving upwards under the action of the first elastic element 60, so that the upper part of the positioning element 6 can always abut against the lock catch 5 to limit the rotation of the lock catch 5. In this embodiment, the first elastic element 60 is a spring, one end of which abuts against the lower portion of the positioning element 6, and the other end of which abuts against a fixed block 601 fixedly disposed in the housing 3.

The upper portion of the positioning member 6 includes a planar portion 61 and a first inclined portion 62 which are connected, the planar portion 61 extends along the front-rear direction, the first inclined portion 62 is inclined from top to bottom backward, the outer peripheral profile of the rear portion of the lock catch 5 includes a first arc-shaped surface 52, a connecting surface 53 and a second arc-shaped surface 54 which are sequentially arranged and connected, and the rotation center (the axis of the pin shaft 50) of the lock catch 5 is arranged adjacent to the inner edge of the middle portion of the locking groove 51. When the lock catch 5 is in the locked state, the second arc-shaped surface 54 of the lock catch 5 abuts against the first inclined surface part 62 of the positioning member 6 (as shown in fig. 3); when the lock catch 5 is in the unlocked state, the first arc-shaped surface 52 of the lock catch 5 abuts against the flat surface 61 of the positioning member 6 (as shown in fig. 13).

When the lock catch 5 is locked, the push rod 4 pushes the lock catch 5 to rotate anticlockwise, the first arc-shaped surface 52 of the lock catch 5 is abutted against the plane part 61 on the positioning part 6 in an initial state, and the positioning part 6 moves downwards and the first elastic part 60 is compressed along with the rotation of the lock catch 5; when the lock catch 5 rotates to the joint of the connecting surface 53 and the first inclined surface part 62 and the plane part 61, the connecting surface is at the turning point of the lock catch 5, after the turning point is passed (as shown in fig. 15), along with the continuous forward movement of the top rod 4, because the radius of the second arc-shaped surface 54 is gradually reduced, the positioning part 6 moves upwards under the action of the first elastic part 60, the friction force between the first inclined surface part 62 and the second arc-shaped surface 54 is reduced, and the lock catch 5 is rapidly turned to the locking state (as shown in fig. 3).

In a state where the second arc-shaped surface 54 abuts against the first inclined surface portion 62, the force F1 applied by the positioning member 6 to the lock catch 5 can be decomposed into a backward force and an upward force (the decomposition of the force is shown in fig. 3), and the lock catch 5 needs to be turned forward (clockwise) when unlocking, so that the backward force applied by the positioning member 6 to the lock catch 5 is opposite to the rotation direction of the lock catch 5, so that the force required to be overcome when unlocking is performed is large, and a torque F1L 1 is generated between the force F1 of the positioning member 6 to the lock catch 5 and a distance L1 (not shown in the figure) of the rotation center of the lock catch 5, which results in that the unlocking force becomes large.

As shown in fig. 6 to 8, 11 and 14, a first microswitch 71 and a first trigger 72 are arranged in the housing 3, the first microswitch 71 has a first contact 711, the first trigger 72 includes a first reed 721 and a second contact 722, one end of the first reed 721 is fixedly installed in the housing 3 through an installation plate 723, the second contact 722 is arranged on the first reed 721 adjacent to the free end thereof, and the second contact 722 always tends to be separated from the first contact 711 under the action of the first reed 721.

The housing 3 further has a first linkage member 73 movably connected to the positioning member 6, and a first spring 721 is located on a moving path of the first linkage member 73, so that the first contact 711 contacts with the second contact 722 when the latch 5 is in the locked state.

The side wall of the positioning member 6 is provided with an accommodating groove 601, a partial wall surface of the accommodating groove 601 extends up and down and inclines forwards or backwards to form a second inclined surface 63, the first linkage member 73 is rod-shaped, the first linkage member 73 comprises a first extension arm 731 and a second extension arm 732 which are integrally connected, the connection part of the first extension arm 731 and the second extension arm 732 is rotatably arranged in the housing 3 through a mounting shaft 733, the tail end of the first extension arm 731 is provided with a sliding block 7311 which can slide along the second inclined surface 63, and the first reed 721 is located on the moving path of the second extension arm 732. When the positioning element 6 moves up and down, the second inclined surface 63 drives the first link 73 to rotate, so that the second extension arm 732 pushes the first spring 721, and the first contact 711 and the second contact 722 abut against each other.

The cleaning machine of this embodiment is further provided with a signal receiver, and the signal receiver is in signal connection with the first microswitch 71. When the door body 2 is locked (namely the lock catch 5 is in a locked state), the first microswitch 71 is triggered, the signal receiver sends out a working signal when receiving an on signal of the first microswitch 71, the cleaning program of the cleaning machine is allowed to be started, when the door body 2 is unlocked (namely the lock catch 5 is in an unlocked state), the first microswitch 71 is not triggered, the signal receiver sends out a power-off signal when receiving an off signal of the first microswitch 71, and the cleaning program of the cleaning machine is not allowed to be started. In other words, by arranging the first microswitch 71, the equipment applying the door lock structure can be started only when the lock catch 5 is in the locking state, so that the safety accident caused by the false starting of the equipment is avoided.

Of course, the second contact 722 may always be kept against the first contact 711 by the first spring 721, and the first contact 711 and the second contact 722 may be separated from each other when the lock 5 is in the locked state.

If chopsticks or spoons are inserted into the lock hole 31 of the housing 3 to push the lock catch 5 to turn over, the first microswitch 71 may be triggered by mistake and send a signal to the controller, so that the second microswitch 81 and the second trigger 82 are arranged in the housing 3, and the second microswitch 81 has a third contact 811; the second trigger 82 includes a second spring 821 and a fourth contact 822, one end of the second spring 821 is fixed to the housing 3, the fourth contact 822 is disposed on the second spring 821 near the free end thereof, and the fourth contact 822 always tends to abut against the third contact 811 under the action of the second spring 821.

The housing 3 is further movably provided with a second linkage 83 connected to the plunger 4, and the second reed 821 is located on a moving path of the second linkage 83 so as to separate the third contact 811 from the fourth contact 822 when the latch 5 is in the locked state. Thus, only when the cylindrical structure 42 of the plunger 4 is locked in the locking groove 51, the third contact 811 and the fourth contact 822 are disengaged or contacted, and the second microswitch 81 is triggered.

In this embodiment, the second linkage 83 includes a first moving block 831, a second elastic member 832, a connecting rod 833 and a second moving block 834.

The first moving block 831 is disposed in the housing 3 in a manner of moving back and forth, the first moving block 831 is at least partially located in front of the top rod 4, the first moving block 831 is provided with a third inclined surface 8311 inclined from front to back in a direction away from the first moving block 831, and the second elastic member 832 acts on the first moving block 831 to enable the first moving block 831 to keep a tendency of moving back all the time.

One end of the connecting rod 833 is located on the third inclined surface 8311 and can slide along the third inclined surface 8311, the stopper 8340 on the second moving block 834 is located on the moving path of the other end of the connecting rod 833, a groove 8341 is formed in the second moving block 834, and the free end of the second reed 821 extends into the groove 8341, so that the second reed 821 is located on the moving path of the second moving block 834.

When the top rod 4 moves forward, the first moving block 831 moves forward along with the first moving block 831, and because the third inclined surface 8311 forces the connecting rod 833 to move in a direction away from the first moving block 831, the connecting rod 833 pushes the second moving block 834 to move in the moving process, so as to drive the free end of the second reed 821 to move, and therefore the third contact 811 contacts with the fourth contact 822. Of course, the fourth contact 822 may always be kept in contact with the third contact 811 by the second spring 821, and the third contact 811 may be separated from the fourth contact 822 when the latch 5 is in the locked state.

Thus, only when the first microswitch 81 and the second microswitch 81 are both triggered and send signals to the controller, the cleaning program of the cleaning machine is allowed to be started, and the reliability is high.

The moving direction of the top rod 4 is defined as a first direction, the direction in which the top rod 4 moves away from the lock hole 31 is defined as a forward direction of the first direction, the direction of the axis of the rotating shaft of the lock catch 5 is defined as a second direction, and the moving direction of the positioning piece 6 is defined as a third direction, in this embodiment, a cleaning machine with an open front is taken as an example, so that the first direction is a front-back direction, the second direction is a left-right direction, and the third direction is an up-down direction; of course, the door lock structure of the present embodiment is also applicable to a washing machine with an open top, in which case the first direction is an up-down direction, the second direction is a left-right direction, and the third direction is a front-back direction.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and simplicity in description, but do not indicate or imply that the devices or elements so referred to must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are illustrative only and are not to be construed as limiting since the disclosed embodiments of the invention can be positioned in different orientations, e.g., "upper" and "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity.

Claims

1. A door lock structure for a home appliance includes

A housing (3) having a first side wall (30) formed with a lock hole (31) penetrating the wall thickness;

the push rod (4) is arranged on one side of a first side wall (30) of the shell (3), the push rod (4) can move towards a direction close to the lock hole (31) or away from the lock hole (31), the push rod (4) extends along the moving direction of the push rod, the first end of the push rod (4) can penetrate through the lock hole (31) so that the push rod (4) is locally positioned in the shell (3), a lock opening (41) is formed in the position, close to the first end, of the push rod (4), the end portion, located on the side of the lock opening (41), of the first end of the push rod (4) is of a columnar structure (42), the moving direction of the push rod (4) is defined as the first direction, and the moving direction, away from the lock hole (31), of the push rod (4) is defined as the forward direction of the first direction;

the lock catch (5) is arranged in the shell (3) in a rotating mode around an axis extending along the second direction, the lock catch (5) is sequentially divided into a first part (5 a) and a second part (5 b) along the forward direction of the third direction, the first direction, the second direction and the third direction are perpendicular to each other in pairs, the first part (5 a) is close to the lock hole (31), a locking groove (51) with a C-shaped opening is formed in the first part (5 a), and the lock catch (5) can rotate to a locking state that the locking groove (51) limits the columnar structure (42) of the ejector rod (4) in the locking state to lock the ejector rod (4) and an unlocking state that the opening of the locking groove (51) faces the lock hole (31) to allow the columnar structure (42) of the ejector rod (4) to be separated from the locking groove (51);

it is characterized by also comprising

Setting element (6), can follow third direction and locate casing (3) with removing, just setting element (6) can be inconsistent all the time with second part (5 b) of hasp (5) and restrict the rotation of hasp (5), the wall that offsets with hasp (5) of setting element (6) includes first inclined plane portion (62), first inclined plane portion (62) are followed the forward of first direction and are leaned towards the direction of keeping away from hasp (5), are in under the lock state at hasp (5), second part (5 b) and first inclined plane portion (62) of setting element (6) of hasp (5) offset.

2. The door lock structure according to claim 1, wherein: the wall that offsets with hasp (5) of setting element (6) is including continuous plane portion (61) and first inclined plane portion (62), plane portion (61) extend along first direction, are in under the unblock state at hasp (5), second part (5 b) of hasp (5) offset with plane portion (61) of setting element (6).

3. The door lock structure according to claim 2, wherein: the positioning device also comprises a first elastic piece (60) which acts on the positioning piece (6) to ensure that the positioning piece (6) always keeps the trend of being against the lock catch (5).

4. The door lock structure according to claim 3, wherein: the outer peripheral profile of the second part (5 b) of the lock catch (5) comprises a first arc-shaped surface (52), a connecting surface (53) and a second arc-shaped surface (54) which are sequentially arranged and connected, and the rotating center of the lock catch (5) is arranged adjacent to the inner edge of the middle part of the locking groove (51).

5. The door lock structure according to any one of claims 1 to 4, characterized in that: a first microswitch (71) and a first trigger piece (72) are arranged in the shell (3), and the first microswitch (71) is provided with a first contact (711); the first trigger piece (72) comprises a first reed (721) and a second contact (722), one end of the first reed (721) is fixedly arranged relative to the shell (3), the second contact (722) is arranged on the first reed (721) adjacent to the free end of the first reed, and the second contact (722) always keeps the tendency of abutting against or separating from the first contact (711) under the action of the first reed (721);

the shell (3) is also movably provided with a first linkage piece (73) connected with the positioning piece (6), and the first reed (721) is positioned on the moving path of the first linkage piece (73), so that the first contact (711) is in contact with or separated from the second contact (722) when the lock catch (5) is in a locking state.

6. The door lock structure according to claim 5, wherein: be equipped with on the wall of setting element (6) along third direction extension and towards second direction's forward or the second inclined plane (63) of negative slope, first linkage (73) are shaft-like, the one end of first linkage (73) is equipped with along second inclined plane (63) gliding slider (7311), the middle part of first linkage (73) is installed in casing (3) through installation hub rotation, first reed (721) are located the removal route of the other end of first linkage (73).

7. The door lock structure according to claim 6, wherein: the first linkage piece (73) comprises a first extension arm (731) and a second extension arm (732) which are integrally connected, the joint of the first extension arm (731) and the second extension arm (732) is rotatably arranged in the shell (3) through the mounting shaft, the sliding block (7311) is arranged on the first extension arm (731), and the first reed (721) is positioned on the moving path of the second extension arm (732)

8. The door lock structure according to claim 5, wherein: a second microswitch (81) and a second trigger piece (82) are arranged in the shell (3), and the second microswitch (81) is provided with a third contact (811); the second trigger piece (82) comprises a second reed (821) and a fourth contact (822), one end of the second reed (821) is fixedly arranged relative to the shell (3), the fourth contact (822) is arranged on the second reed (821) adjacent to the free end of the second reed, and the fourth contact (822) always keeps the trend of abutting against or separating from the third contact (811) under the action of the second reed (821);

and a second linkage member (83) connected with the ejector rod (4) is movably arranged in the shell (3), and the second reed (821) is positioned on the moving path of the second linkage member (83), so that the third contact (811) is contacted with or separated from the fourth contact (822) when the lock catch (5) is in a locking state.

9. The door lock structure according to claim 8, wherein: the second linkage member (83) comprises

The first moving block (831) is movably arranged in the shell (3) along a first direction, at least part of the first moving block (831) can abut against the first end of the ejector rod (4), and a third inclined surface (8311) which inclines towards the direction far away from the first moving block (831) from the reverse direction to the positive direction of the first direction is arranged on the first moving block (831);

the second elastic piece (832) acts on the first moving block (831) to enable the first moving block (831) to always keep the trend of moving towards the positive direction of the first direction;

one end of the connecting rod (833) is positioned on the third inclined surface (8311) and can slide along the third inclined surface (8311);

a second moving block (834) located on a moving path of the other end of the connecting rod (833);

the second reed (821) is located on a moving path of a second moving block (834).

10. The door lock structure according to claim 9, wherein: the second moving block (834) is provided with a groove (8341), and the free end of the second reed (821) extends into the groove (8341).

11. A home appliance to which the door lock structure of any one of claims 1 to 10 is applied, characterized in that: still include box (1) and the door body (2), box (1) inside has one side open-ended cavity (11), and the uncovered department of box (1) can be located to the door body (2) activity to open and close above-mentioned cavity (11), ejector pin (4) can be followed first direction and moved and locate on the lateral wall of box (1), casing (3) are located on the door body (2).

12. A household appliance as claimed in claim 11, characterized in that: the household appliance is a cleaning machine, the top of the box body (1) is open, the first direction is the up-down direction, the second direction is the left-right direction, and the third direction is the front-back direction; or the household appliance is a cleaning machine, the front side of the box body (1) is open, the first direction is the front-back direction, the second direction is the left-right direction, and the third direction is the up-down direction.