CN110359235B

CN110359235B - Damping door lock and washing machine

Info

Publication number: CN110359235B
Application number: CN201810250988.5A
Authority: CN
Inventors: 姚加旺; 李丹丹; 吴登军
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2018-03-26
Filing date: 2018-03-26
Publication date: 2022-03-01
Anticipated expiration: 2038-03-26
Also published as: CN110359235A

Abstract

The invention provides a damping door lock and a washing machine, wherein the damping door lock comprises: the lock comprises a shell, a damper and a lock cylinder, wherein the shell is provided with a first connecting part; the damper is at least partially arranged in the shell and used for increasing the resistance of the door cover in the closing process, the damper is provided with a second connecting part which can rotate relative to the shell, one of the second connecting part and the first connecting part can be connected with the machine body, and the other one can be connected with the door cover so as to ensure that the door cover is pivoted with the machine body; the lock cylinder is mounted in the housing and is capable of reciprocating between a locked position and an unlocked position in the housing, and locks the second connecting portion to restrict rotation of the second connecting portion relative to the housing when moved to the locked position, and unlocks the second connecting portion when moved to the unlocked position. The damping door lock indirectly limits the rotation of the door cover through the limitation of the lock cylinder to the damper, so that the door locking function is realized, and holes do not need to be formed in the door cover and the workbench; and the structure of the washing machine is more compact, and the assembly efficiency is higher.

Description

Damping door lock and washing machine

Technical Field

The invention relates to the technical field of household appliances, in particular to a damping door lock and a washing machine comprising the same.

Background

At present, washing machines on the market have a safety lock function for safety consideration. The conventional safety lock is arranged on the outer surface of the door cover, the door lock is arranged on the workbench, and the lock cylinder can extend into the corresponding opening of the door cover through program control so as to achieve the function of locking the door. However, in this door locking mode, holes must be formed in the workbench and the door cover, and in the actual use process, the water leakage at the openings needs to be safely protected, so that the water leakage prevention of the door lock becomes one of the problems that the person in the art needs to solve urgently.

Disclosure of Invention

In order to solve at least one of the above technical problems, an object of the present invention is to provide a damping door lock.

Another object of the present invention is to provide a washing machine including the above damping door lock.

In order to achieve the above object, a first aspect of the present invention provides a damper door lock for a washing machine, comprising: a housing provided with a first connection portion; the damper is at least partially arranged in the shell and used for increasing the resistance of the door cover in the closing process, the damper is provided with a second connecting part which can rotate relative to the shell, one of the second connecting part and the first connecting part can be connected with the machine body, and the other one can be connected with the door cover so as to enable the door cover to be pivoted with the machine body; and the lock cylinder is arranged in the shell and can reciprocate between a locking position and an unlocking position in the shell, and locks the second connecting part to limit the second connecting part to rotate relative to the shell when moving to the locking position, and releases the locking of the second connecting part when moving to the unlocking position.

According to the damping door lock provided by the technical scheme of the first aspect of the invention, the door lock and the damper are integrated, and the rotation of the door cover is indirectly limited by limiting the damper through the lock cylinder, so that the door locking function is realized, holes do not need to be formed in the door cover and the workbench, and the problem that the safety protection of water leakage at the opening is needed in the prior art is solved; and the damper and the door lock are integrated into a damping door lock, and the damping door lock has a damping function and a door locking function, so that the washing machine is more compact in structure and higher in assembly efficiency.

Specifically, the damping door lock comprises a shell, a damper and a lock cylinder, wherein the shell is provided with a first connecting part, the damper is provided with a second connecting part, one of the first connecting part and the second connecting part is fixedly connected with the door cover, and the other one of the first connecting part and the second connecting part is fixedly connected with the machine body; the damper can increase the resistance of the door cover in the closing process of the door cover, thereby playing a role in damping, slowing down the closing speed of the door cover and avoiding the conditions of noise or hand clamping and the like caused by the over-high closing speed of the door body; the lock core can reciprocate in the shell, and the second connecting part is limited to rotate relative to the shell by locking the second connecting part of the damper, so that the shell and the second connecting part can only keep relative static, and the door locking function is realized. The specific working principle is as follows:

when the lock core moves to the locking position, the second connecting part is locked by the lock core, the circumferential rotation of the second connecting part relative to the shell is limited, and because the first connecting part on the shell is fixedly connected with one of the door cover and the machine body, and the second connecting part of the damper is fixedly connected with the other of the door cover and the machine body, when the relative rotation between the second connecting part of the damper and the shell is limited, the relative rotation between the door cover and the machine body is also limited, namely: the door cover can not freely rotate relative to the machine body, so that the door locking function is realized; on the contrary, when the lock core moves reversely to the unlocking position, the locking of the second connecting part is released, so that the relative rotation between the second connecting part and the shell can be generated, and the door cover can be normally opened and closed. Consequently, the realization of lock door function in this application is realized through the cooperation between lock core and the attenuator, the lock core only needs in the shell reciprocating motion can realize lock door function and unblock function, and need not to insert in the opening that the door closure corresponds like prior art through the opening on the workstation, therefore avoided offering the hole that the lock door was used on workstation and door closure, and then avoided carrying out safety protection to leaking of opening department, the problem of lock leak protection water among the prior art has been solved, and avoided inside water entering door closure and the workstation, waterproof safety purpose has been reached, think about very ingenious.

In addition, the damping door lock in the above technical solution provided by the present invention may further have the following additional technical features:

in the above technical solution, the damper includes: the fixing piece is arranged in the shell, is matched with the shell and can limit the fixing piece to rotate relative to the shell; the rotating part is arranged in the shell, can rotate relative to the shell, is arranged opposite to the fixed part, and is mutually abutted and rubbed with the fixed part in the closing process of the door cover; the second connecting part is fixedly connected with the rotating part.

The attenuator includes the mounting and rotates the piece, and the mounting is installed in the shell, and its cooperation with the shell can restrict the relative shell rotation of mounting, promptly: the fixed part is non-rotatably arranged in the shell and keeps synchronous with the movement of the shell in the circumferential direction; the rotating member is mounted in the housing and is capable of rotating relative to the housing, i.e.: the rotating member is rotatably mounted in the housing; the rotating part and the fixing part are arranged oppositely and are in butt friction with the fixing part in the closing process of the door cover to slow down the closing speed of the door cover, so that the friction force between the fixing part and the rotating part can increase the resistance force applied in the closing process of the door cover, and the damping function of the damper is further realized; the second connecting part is fixedly connected with the rotating part, so that the second connecting part and the rotating part keep synchronous rotation and can rotate relative to the shell.

In the above technical solution, the lock cylinder includes: the limiting piece is arranged in the shell in a reciprocating manner and is matched with the shell to limit the lock cylinder to rotate relative to the shell; and the limiting shaft is connected with the limiting part, the cross section of the limiting part is noncircular, a shaft hole matched with the limiting shaft is formed in the rotating part, and the limiting shaft can be inserted into or separated from the shaft hole to lock or unlock the second connecting part.

The lock core comprises a limiting part and a limiting shaft, the limiting part can be arranged in the shell in a reciprocating manner, the lock core can be ensured to reciprocate between a locking position and an unlocking position, meanwhile, the relative rotation between the lock core and the shell is limited by the matching of the limiting part and the shell, and the synchronism of the lock core and the shell in the movement in the circumferential direction is ensured; the cross section of the limiting shaft is non-circular (such as square, D-shaped, triangular, oval and the like), the rotating part is internally provided with a shaft hole matched with the limiting shaft, and the shape of the shaft hole is also non-circular, so that when the limiting shaft is inserted into the shaft hole, the relative rotation between the lock cylinder and the rotating part can be limited. Because the lock core keeps in step with the motion of shell in the direction of circumference, rotates the piece and keeps in step with the motion of second connecting portion in the direction of circumference, therefore when the lock core can not take place relative rotation between the piece, also can not take place relative rotation between shell and the second connecting portion, promptly: the lock cylinder locks the second connecting part and limits the second connecting part to rotate relative to the shell; on the contrary, when spacing axle deviate from the shaft hole, the lock core does not contact with between the piece for the piece that rotates can take place to rotate relative to the shell, therefore relative rotation also can take place to the shell for the second connecting portion, promptly: the lock cylinder unlocks the second connecting portion.

The shape of the limiting member and the matching manner between the limiting member and the housing are not particularly limited, for example: the limiting piece can be a square block, a slide way matched with the limiting piece is arranged in the shell, and the limiting piece can only slide back and forth along the slide way and cannot rotate relative to the shell; or, the limiting piece is a half-surrounding structure, a half-surrounding structure matched with the limiting piece is arranged on the inner wall surface of the shell, the two half-surrounding structures are butted together to form a square structure, and a supporting structure or a limiting structure is correspondingly arranged on two sides of the square structure, so that the reciprocating movement of the limiting piece can be realized, and the relative rotation between the lock cylinder and the shell is limited; … …, not to be enumerated here.

In the above technical solution, optionally, the fixing member is located between the limiting member and the rotating member, an avoiding hole is provided on the fixing member, and the limiting shaft passes through the avoiding hole to be inserted into the shaft hole.

The fixed part is positioned between the limiting part and the rotating part, and the limiting shaft can be inserted into the shaft hole on the rotating part only after penetrating through the fixed part, so that the middle part of the fixed part is provided with a corresponding avoiding hole to avoid the limiting shaft; at this moment, rotate the position of being connected that the piece is close to organism and door closure relatively, the second connecting portion of being convenient for links to each other with organism or door closure, and because the second connecting portion are located the one side of rotating the piece and keeping away from the mounting, therefore can not influence each other between second connecting portion and the mounting, so the structure of second connecting portion also can be simplified, and size and volume can corresponding reduction.

In the above technical solution, optionally, the rotating member is located between the limiting member and the fixing member, the fixing member is sleeved on the second connecting portion and can rotate relative to the second connecting portion, and the second connecting portion passes through the fixing member and is connected to the machine body or the door cover.

Rotate the piece and be located between locating part and the mounting, then the mounting is close to the connecting portion of organism and door closure relatively, therefore the second connecting portion need pass the mounting and just can link to each other with organism or door closure, consequently corresponding hole also needs to be seted up at the middle part of mounting, in order to dodge the second connecting portion, still need to guarantee simultaneously that relative rotation can take place between second connecting portion and the mounting, in order to guarantee to take place relative rotation between second connecting portion and the shell, consequently the hole at mounting middle part is the round hole, and it is cylindrical to have at least one section on the second connecting portion, in order to guarantee that the mounting can overlap and establish on the second connecting portion, and second connecting portion rotate relatively.

In any one of the above technical solutions, one of the inner wall surface of the housing and the outer peripheral edge of the fixing member is provided with a positioning groove, and the other one is provided with a positioning block, wherein the positioning block is embedded in the positioning groove and can limit the rotation of the fixing member relative to the housing.

A positioning groove and a positioning block are arranged between the inner wall surface of the shell and the outer periphery of the fixing piece, and the positioning block is embedded into the positioning groove, so that the relative rotation between the shell and the fixing piece can be limited, and the structure and the principle are simpler; meanwhile, the matching of the positioning groove and the positioning block also plays an effective positioning role in the assembling process between the fixing piece and the shell, so that the assembling efficiency of the damping door lock is improved. The number of the positioning grooves and the positioning blocks is not particularly limited, and the positioning grooves and the positioning blocks can be one or more, and the shapes of the positioning blocks can be the same or not completely the same or completely different; the shapes of the positioning block and the positioning groove are not particularly limited, and the positioning block and the positioning groove can be long strips, cylinders, crosses and the like.

In the technical scheme, a sliding groove matched with the fixed part is further formed in the shell, the fixed part is limited in the sliding groove and can axially slide along the sliding groove, the fixed part and the rotating part are cams, and protrusions are arranged on the opposite sides of the two cams; when the rotating part and the shell rotate relatively, the bulges on the two cams interact with each other to enable the fixing part to be far away from or close to the rotating part.

The fixed part and the rotating part are cams, namely, the fixed part and the rotating part are provided with raised wheels, and the raised parts are arranged on one side opposite to the fixed part and the rotating part, so that the two cams form a jaw structure, in the process of opening or closing the door cover, the shell and the second connecting part rotate relatively to drive the fixed part and the rotating part to rotate relatively, and at the moment, the raised parts on the two cams interact with each other to generate acting force in the axial direction between the fixed part and the rotating part; because be equipped with the spout in the shell, the mounting can be along spout endwise slip, and rotate the piece and link to each other with organism or door closure are fixed through second connecting portion, axial motion can not produce, so at the in-process that the door closure opened and shut, the mounting can be close to along axial direction and rotate the piece or keep away from and rotate the piece, this makes mounting and the area of contact between rotating the piece can change, thereby avoided the mounting and rotated the excessive wearing and tearing of piece and lead to the life-span low excessively.

In the above technical solution, the damper further includes: the elastic piece is limited in the shell, one end of the elastic piece is abutted against one end of the fixed piece, which is far away from the rotating piece, and the elastic deformation of the elastic piece is gradually increased in the process that the fixed piece is far away from the rotating piece; the door cover is provided with a fixing piece, a rotating piece and a door cover, wherein the fixing piece slides in the direction away from the rotating piece in the process of closing the door cover, and the fixing piece slides in the direction close to the rotating piece in the process of opening the door cover.

The damper also comprises an elastic part, the elastic part is abutted against one end, far away from the rotating part, of the fixing part, and the elastic deformation amount of the elastic part is gradually increased in the process that the fixing part is far away from the rotating part, so that in the process that the fixing part is far away from the rotating part, the elastic part stores elastic potential energy and applies resistance to the fixing part to slow down the movement speed of the fixing part, and on the contrary, in the process that the fixing part is close to the rotating part, the elastic potential energy is released by the elastic part to apply power to the fixing part to improve the movement speed of the fixing part.

Furthermore, when the fixed piece slides in the direction away from the rotating piece, the door cover is in the closing process, and the fixed piece is subjected to the resistance exerted by the elastic piece, so that the closing speed of the door cover is further slowed down, and the damping effect of the damper is further improved; on the contrary, when the fixed part slides towards the direction close to the rotating part, the door cover is in the opening process, and the fixed part is subjected to the power exerted by the elastic part, so that the door cover is easier to open, and the use comfort of a user is further improved. In other words, when the door is closed, the jaw structure formed by the fixed piece and the rotating piece is engaged and separated, and the elastic piece provides resistance to reduce the door closing speed; when the door is opened, the jaw structure formed by the fixing piece and the rotating piece is meshed from separation, the elastic piece provides power, and the door opening difficulty is reduced.

Specifically, the moving direction of the fixing member may be made to correspond to the opening and closing process of the door cover by designing the shapes of the protrusions on the two cams, and the shapes and the number of the protrusions are not particularly limited as long as the above-described functions can be achieved. Preferably, a plurality of bulges are arranged on the two cams and are uniformly distributed along the circumferential direction, the shapes of the bulges are mutually matched, and the two cams can be completely butted and separated. As for the elastic member, a compression spring, a torsion spring, or the like may be mentioned.

In the technical scheme, a first installation cavity and a second installation cavity are arranged in the shell, a partition plate is arranged between the first installation cavity and the second installation cavity, and a through hole is formed in the partition plate; the fixing piece, the rotating piece and the elastic piece are installed in the first installation cavity, the other end of the elastic piece is abutted against the cavity wall of the first installation cavity, one part of the lock cylinder is limited in the second installation cavity, and the other part of the lock cylinder penetrates through the through hole and is inserted into the first installation cavity so as to lock or unlock the second connecting portion.

In the above technical solution, the housing includes: the main body comprises an upper cover and a bottom cover, the upper cover and the bottom cover are mutually covered to define the first installation cavity and the second installation cavity, and one end, far away from the second installation cavity, of the first installation cavity is open; and the end cover is covered at the open end of the main body and fixedly connected with the main body, a gap is formed in the middle of the end cover, the second connecting part is connected with the machine body or the door cover through the gap, and the damper is positioned in the shell and partially covers the gap.

A first mounting cavity and a second mounting cavity are arranged in the shell, the fixing part, the rotating part and the elastic part are mounted in the first mounting cavity, a sliding groove matched with the fixing part is formed in the first mounting cavity, one end of the elastic part abuts against the fixing part, and the other end of the elastic part abuts against the cavity wall of the first mounting cavity, so that the elastic deformation of the elastic part can be gradually increased in the process that the fixing part is far away from the rotating part (namely in the process that the door cover is closed); one part of the lock core (namely one section of the limiting piece and the limiting shaft) is limited in the second mounting cavity, and the other part (namely the other section of the limiting shaft) passes through the through hole and is inserted into the first mounting cavity so as to lock or unlock the second connecting part. The arrangement avoids mutual influence between the lock cylinder and each part of the damper as much as possible, and improves the use reliability of the lock cylinder and the damper.

The shell comprises a main body and an end cover, the main body comprises an upper cover and a bottom cover, and the shell is disassembled, so that the lock cylinder, the damper and other structures can be conveniently mounted, dismounted and maintained; the gap on the end cover is convenient for the second connecting part to extend out of the shell to be connected with the machine body or the door cover, and is also convenient for the corresponding structure on the shell or the door body to be inserted into the shell to be connected with the second connecting part, and the part of the damper located in the shell covers the gap on the end cover, so that external sundries can be prevented from entering the damping door lock, and the damping door lock is protected.

Furthermore, when the fixed part is positioned between the limiting part and the rotating part, the other end of the elastic part abuts against the partition plate, and the outer periphery of the rotating part can be provided with a step structure, so that a sealing ring can be sleeved at the step to further improve the sealing property of the shell; when the rotating part is located between the limiting part and the fixing part, the damper can further comprise a gasket, the gasket is also sleeved on the second connecting part and covers the gap of the end cover, and the other end of the elastic part abuts against the gasket.

In any of the above technical solutions, the damping door lock further includes: and the electric drive assembly is partially positioned in the shell, is fixedly connected with the lock cylinder, is electrically connected with an electric control board of the washing machine and is used for driving the lock cylinder to reciprocate.

The damping door lock further comprises an electric drive assembly, the electric drive assembly is electrically connected with an electric control board of the washing machine, therefore, the reciprocating motion of the lock cylinder can be realized according to the program control of the electric control board, the automatic door locking and automatic unlocking are further realized, the automation degree of the washing machine is improved, and the use comfort level of a user is further improved.

In the above technical solution, the electric drive assembly includes: the electromagnetic coil is electrically connected with the electric control board; the electromagnetic core rod is in magnetic force fit with the electromagnetic coil and can reciprocate along the axial direction of the electromagnetic coil under the action of the magnetic force of the electromagnetic coil; the electromagnetic core rod is fixedly connected with the lock cylinder so as to drive the lock cylinder to reciprocate between the locking position and the unlocking position.

The electric drive assembly comprises an electromagnetic coil and an electromagnetic core rod, the electromagnetic coil is electrically connected with the electric control board, a magnetic field can be generated after the electromagnetic coil is electrified, the electromagnetic core rod is applied with magnetic force, and then the electromagnetic core rod is driven to reciprocate.

In the above technical solution, the electric drive assembly further includes: and two ends of the elastic driving piece are respectively abutted against the electromagnetic coil and the lock cylinder and are compressed when the lock cylinder moves to the unlocking position.

The electric drive assembly further comprises an elastic drive member (such as a compression spring), two ends of the elastic drive member respectively abut against the electromagnetic coil and the lock cylinder and are compressed when the lock cylinder moves to the unlocking position, so that when the door is locked, the lock cylinder can move to the locking position under the combined action of the electromagnetic core rod and the elastic drive member, the locking speed is increased, the reverse movement of the lock cylinder in the locking state can be limited, and the reliability of locking the second connecting part by the lock cylinder is improved.

Of course, some mechanical limiting structures can be further provided to improve the reliability of the lock cylinder locking the second connecting part, such as: when the lock core moves to the locking position, the hook just hooks the lock core, so that the lock core can be effectively prevented from moving in the opposite direction, and the reliability of locking the door is improved.

In the technical scheme, the electromagnetic coil drives the electromagnetic core rod to reciprocate by receiving forward pulse current and reverse pulse current.

The electromagnetic coil drives the electromagnetic core rod to reciprocate by receiving the forward pulse current and the reverse pulse current, namely: when the door is locked, the electromagnetic coil receives pulse current, is electrified instantly to generate magnetism, pops up the electromagnetic core rod, pushes the lock cylinder to move to a locking position, and enables the lock cylinder to lock the second connecting part to realize door locking; when the door cover is unlocked, the electromagnetic coil also receives pulse current, the electromagnetic coil is electrified instantly to generate magnetism, the electromagnetic core rod is attracted back, the lock cylinder is driven to move reversely to an unlocking position, the locking of the second connecting part is released, the door cover recovers the rotating function, and the door cover can be opened freely. Of course, the electromagnetic coil can drive the electromagnetic core rod to reciprocate according to the power on and power off, and the invention also belongs to the protection scope of the invention.

Furthermore, a switch device (such as a microswitch) can be arranged in the shell, the switch device is electrically connected with the electromagnetic coil and is also mechanically matched with the lock cylinder, and the switch device can be triggered or disconnected when the lock cylinder reciprocates, so that the electromagnetic coil is automatically controlled, and the state of the electromagnetic coil is kept corresponding to the motion process of the lock cylinder.

In any of the above technical solutions, the damping door lock further includes: and one end of the manual driving component is inserted into the shell and connected with the lock cylinder, and the other end of the manual driving component extends out of the shell and is used for manually driving the lock cylinder to move.

The damping door lock also comprises a manual driving assembly, and the manual driving assembly is mechanically connected with the lock cylinder, so that a user can conveniently lock and unlock the door manually at any time according to the requirement; and to above-mentioned technical scheme who drives the reciprocating motion of lock core through electric drive subassembly, manual drive subassembly can effectively avoid electric drive subassembly can not drive the condition that the lock core motion leads to the door closure to open when failing.

Specifically, the manual driving assembly comprises a pull rod mechanically connected with the lock cylinder, a hand piece connected with the pull rod and a pressure spring sleeved on the pull rod and limited in the shell, the lock cylinder can be driven to move by manually driving the hand piece, the pressure spring can realize automatic reset of the manual driving assembly, and the structure and the principle are simple. Preferably, the hand-held piece is flexible stay cord, and the manual drive subassembly can only pull the lock core and realize the unblock function this moment, is used for mainly that the electric drive subassembly is used for can manually unblock when failing and open the door closure. Of course, the hand-held piece can also be a rigid piece, and at the moment, the manual driving assembly can pull the lock cylinder to realize the unlocking function and can push the lock cylinder to realize the door locking function.

In any of the above technical solutions, the first connecting portion includes a connecting hole and/or a connecting column; and/or the second connecting part at least partially protrudes out of the shell, the part of the second connecting part protruding out of the shell is formed into a connecting shaft, and the cross section of the connecting shaft is non-circular.

First connecting portion include connecting hole and/or spliced pole, and then can realize the fixed connection of shell and door closure or organism through fasteners such as screws, and is simple and convenient, and fixed firm. Of course, since the fixed connection between the housing and the door cover or the body is various, the first connection portion is not limited to the connection hole and/or the connection column, which is not illustrated, but is within the protection scope of the present invention.

The second connecting part at least partially protrudes out of the shell, so that the damping door lock is integrally installed on one of the door cover or the machine body when the damping door lock is installed, and then the second connecting part is directly connected with the other one of the door cover or the machine body, so that the damping door lock is very convenient and fast; the part of second connecting portion protrusion in the shell forms the connecting axle, and the cross section of connecting axle is non-circular (like square, D shape, triangle-shaped, oval etc.), then only need set up in door closure or organism rather than the matched with groove class structure of looks adaptation, can realize the fixed connection of second connecting portion and door closure or organism, guarantees the synchronism of second connecting portion and door closure or organism motion in the circumferential direction, simple structure, easily processing, and loading and unloading are convenient, the mass production of being convenient for. Of course, the second connecting portion may be located completely inside the housing, so that the corresponding structure in the machine body or the door cover is inserted into the housing to connect with the second connecting portion.

An aspect of the second aspect of the present invention provides a washing machine, including: the device comprises a machine body, a first clamping piece and a second clamping piece, wherein an accommodating cavity with an opening at one end is defined in the machine body; the door cover is arranged at the opening end of the accommodating cavity in a covering mode so as to open or close the accommodating cavity; and at least one damping door lock according to any one of the first technical solution, wherein a first connecting part of the damping door lock is connected with one of the machine body and the door cover, and a second connecting part of the damping door lock is connected with the other of the machine body and the door cover, so that the machine body and the door cover are pivoted.

In the washing machine provided by the second aspect of the present invention, the machine body and the door cover are pivotally connected through the damping door lock according to any one of the first aspect of the present invention, so that all the beneficial effects of any one of the above-mentioned technical solutions are achieved, and no further description is provided herein.

Optionally, the damping door lock is installed in the door cover rotating shaft, and is fixedly connected with the door cover through the first connecting portion and the second connecting portion are fixedly connected with the machine body workbench. When the lock cylinder locks the second connecting part, the shell and the second connecting part cannot rotate relatively, and the shell cannot rotate normally due to the fact that the second connecting part cannot rotate because of the limitation of the workbench, so that the door cover cannot rotate normally, and a door locking function is achieved; when the lock cylinder unlocks the second connecting part, the shell and the second connecting part can rotate relatively, so that the shell can rotate freely, the door cover can rotate freely, and the unlocking function is realized.

Optionally, the damping door lock is installed in the machine body workbench and fixedly connected with the workbench through a second connecting portion, and the second connecting portion is fixedly connected with the door cover. When the lock cylinder locks the second connecting part, the shell and the second connecting part cannot rotate relatively, and the shell cannot rotate due to the limitation of the workbench, so that the second connecting part cannot rotate normally, the door cover cannot rotate normally, and a door locking function is realized; when the lock cylinder unlocks the second connecting part, the shell and the second connecting part can rotate relatively, so that the second connecting part can rotate freely, the door cover can also rotate freely, and the unlocking function is realized.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a damper door lock according to some embodiments of the present invention;

FIG. 2 is a schematic front view of the damper door lock of FIG. 1 shown assembled;

FIG. 3 is a schematic left side elevational view of the damper door lock of FIG. 1 shown assembled;

FIG. 4 is a cross-sectional structural view of the damper door lock of FIG. 1 in a first assembled state;

FIG. 5 is a cross-sectional structural view of the damper door lock of FIG. 1 in a second state after assembly;

FIG. 6 is a schematic cross-sectional view of the damper door lock of FIG. 1 in a third state after assembly;

FIG. 7 is a schematic view of the assembly of the damper door lock with the door cover and the workbench according to one embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of the assembled structure of FIG. 7;

fig. 9 is an enlarged schematic view of a portion a in fig. 8.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:

the damping door lock comprises a damping door lock body 1, a shell 10, an upper cover 11, a bottom cover 12, an end cover 13, a damper 20, a fixing piece 21, a positioning block 211, a rotating piece 22, a shaft hole 221, an elastic piece 23, a connecting shaft 24, a lock cylinder 30, a limiting piece 31, a limiting shaft 32, an electric driving assembly 40, an electromagnetic coil 41, an electromagnetic core rod 42, an elastic driving piece 43, a manual driving assembly 50, a door cover 2, a rotating shaft 202, a workbench 3, a mounting groove 302 and a support 304.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The damper door lock and the washing machine according to some embodiments of the present invention will be described with reference to fig. 1 to 9.

As shown in fig. 1 to 6, an embodiment of the first aspect of the present invention provides a damper door lock 1 for a washing machine, including: housing 10, damper 20, and lock cylinder 30.

Specifically, the housing 10 is provided with a first connecting portion; the damper 20 is at least partially arranged in the shell 10 and used for increasing the resistance of the door cover 2 in the closing process, the damper 20 is provided with a second connecting part which can rotate relative to the shell 10, one of the second connecting part and the first connecting part can be connected with the machine body, and the other one can be connected with the door cover 2 so as to enable the door cover 2 to be pivoted with the machine body; the key cylinder 30 is installed in the housing 10 and is capable of reciprocating between a locking position and an unlocking position in the housing 10, and locks the second connecting portion to restrict the second connecting portion from rotating with respect to the housing 10 when moved to the locking position, as shown in fig. 6, and unlocks the second connecting portion when moved to the unlocking position, as shown in fig. 4 and 5.

According to the damping door lock 1 provided by the embodiment of the first aspect of the invention, the door lock and the damper 20 are integrated, and the rotation of the door cover 2 is indirectly limited by limiting the damper 20 through the lock cylinder 30, so that the door locking function is realized, holes do not need to be formed in the door cover 2 and the workbench 3, and the problem that the safety protection of water leakage at the holes needs to be carried out in the prior art is solved; and the damper 20 and the door lock are integrated into the damping door lock 1, and the damping door lock has the damping function and the door locking function, so that the washing machine is more compact in structure and higher in assembly efficiency.

Specifically, the damping door lock 1 comprises a shell 10, a damper 20 and a lock cylinder 30, wherein the shell 10 is provided with a first connecting part, the damper 20 is provided with a second connecting part, one of the first connecting part and the second connecting part is fixedly connected with the door cover 2, and the other one of the first connecting part and the second connecting part is fixedly connected with the machine body, and the second connecting part can rotate relative to the shell 10, so that the rotatable connection between the door cover 2 and the machine body is realized; the damper 20 can increase the resistance of the door cover 2 in the closing process of the door cover 2, thereby playing a damping role, slowing down the closing speed of the door cover 2, and avoiding the conditions of noise or hand clamping and the like caused by the excessively high closing speed of the door body; the key cylinder 30 can reciprocate in the housing 10, and the rotation of the second connecting portion with respect to the housing 10 is restricted by locking the second connecting portion of the damper 20, so that the housing 10 and the second connecting portion can only remain relatively stationary, thereby performing a door locking function. The specific working principle is as follows:

when the key cylinder 30 is moved to the locking position, as shown in fig. 6, the second connecting portion is locked by the key cylinder 30, which restricts circumferential rotation relative to the housing 10, and since the first connecting portion on the housing 10 is fixedly connected to one of the door cover 2 and the machine body and the second connecting portion of the damper 20 is fixedly connected to the other of the door cover 2 and the machine body, when relative rotation between the second connecting portion of the damper 20 and the housing 10 is restricted, relative rotation between the door cover 2 and the machine body is also restricted, that is: the door cover 2 can not freely rotate relative to the machine body, so that the door locking function is realized; on the contrary, when the key cylinder 30 is reversely moved to the unlock position, as shown in fig. 4 and 5, the locking of the second connecting portion is released, so that the relative rotation between the second connecting portion and the housing 10 can be performed, and thus the door cover 2 can be normally opened and closed. Therefore, the realization of lock door function in this application is realized through the cooperation between lock core 30 and the attenuator 20, lock core 30 only needs reciprocating motion can realize lock door function and unblock function in shell 10, and need not to insert in the opening that the door closure 2 corresponds through the opening on the workstation 3 like prior art, therefore avoided offering the hole that the lock door used on workstation 3 and door closure 2, and then avoided carrying out safety protection to the leaking of opening department, the problem of lock leak protection water among the prior art has been solved, and avoided inside water gets into door closure 2 and workstation 3, waterproof safety purpose has been reached, think about very ingeniously.

Further, the damper 20 includes: the fixed part 21 and the rotating part 22, the fixed part 21 is installed in the outer casing 10 and is matched with the outer casing 10, and the fixed part 21 can be limited to rotate relative to the outer casing 10; the rotating member 22 is installed in the housing 10, can rotate relative to the housing 10, is arranged opposite to the fixing member 21, and is in friction contact with the fixing member 21 during the closing process of the door 2, as shown in fig. 4 to 6; wherein the second connecting portion is fixedly connected to the rotating member 22.

The damper 20 comprises a fixed member 21 and a rotating member 22, the fixed member 21 is installed in the housing 10, and the fixed member 21 can limit the rotation of the fixed member 21 relative to the housing 10 by matching with the housing 10, namely: the fixed member 21 is non-rotatably installed in the housing 10 in synchronization with the movement of the housing 10 in the circumferential direction; the rotary member 22 is mounted in the housing 10 and is capable of rotating relative to the housing 10, namely: the rotary member 22 is rotatably installed in the housing 10; the rotating part 22 is arranged opposite to the fixed part 21 and is in friction with the fixed part 21 in a stopping way in the closing process of the door cover 2 to slow down the closing speed of the door cover 2, so that the friction force between the fixed part 21 and the rotating part 22 can increase the resistance force applied in the closing process of the door cover 2, and further the damping function of the damper 20 is realized; the second connecting portion is fixedly connected to the rotating member 22, so that the second connecting portion and the rotating member 22 rotate synchronously and can rotate relative to the housing 10.

Further, the key cylinder 30 includes: a limiting member 31 and a limiting shaft 32, as shown in fig. 4 to 6, the limiting member 31 is reciprocally installed in the housing 10 and cooperates with the housing 10 to limit the rotation of the lock cylinder 30 relative to the housing 10; the limiting shaft 32 is connected to the limiting member 31, and the cross section of the limiting shaft is non-circular, as shown in fig. 1, a shaft hole 221 adapted to the limiting shaft 32 is provided in the rotating member 22, and the limiting shaft 32 can be inserted into or pulled out of the shaft hole 221, as shown in fig. 4 to 6, to lock or unlock the second connecting portion.

The lock cylinder 30 comprises a limiting piece 31 and a limiting shaft 32, the limiting piece 31 can be installed in the shell 10 in a reciprocating manner, the lock cylinder 30 can be ensured to reciprocate between a locking position and an unlocking position, meanwhile, the limiting piece 31 is matched with the shell 10 to limit the relative rotation between the lock cylinder 30 and the shell 10, and the synchronism of the lock cylinder 30 and the shell 10 in the circumferential direction is ensured; the cross section of the limiting shaft 32 is non-circular (such as square, D-shaped, triangular, oval, etc.), the rotating member 22 is provided with a shaft hole 221 matching with the limiting shaft 32, and the shaft hole 221 is also non-circular, so that when the limiting shaft 32 is inserted into the shaft hole 221, the relative rotation between the lock cylinder 30 and the rotating member 22 can be limited.

Since the lock cylinder 30 is kept in synchronism with the movement of the housing 10 in the circumferential direction and the turn piece 22 is kept in synchronism with the movement of the second connecting portion in the circumferential direction, when relative rotation cannot occur between the lock cylinder 30 and the turn piece 22, relative rotation cannot occur between the housing 10 and the second connecting portion, that is: the lock cylinder 30 locks the second connecting portion, restricting the second connecting portion from rotating relative to the housing 10; on the contrary, when the limiting shaft 32 is disengaged from the shaft hole 221, there is no contact between the lock cylinder 30 and the rotor 22, so that the rotor 22 can rotate relative to the housing 10, and thus the second connecting portion can also rotate relative to the housing 10, that is: the lock cylinder 30 unlocks the second connecting portion.

The shape of the limiting member 31 and the matching manner with the housing 10 are not particularly limited, for example: the limiting piece 31 can be a square block, a slide way matched with the limiting piece 31 is arranged in the shell 10, and the limiting piece 31 can only slide along the slide way in a reciprocating manner and cannot rotate relative to the shell 10; or, the limiting member 31 is a half-enclosure structure, as shown in fig. 1, a half-enclosure structure adapted to the limiting member 31 is disposed on an inner wall surface of the housing 10, the two half-enclosure structures are butted together to form a square structure, and a supporting structure or a limiting structure is correspondingly disposed on two sides of the square structure, so that the limiting member 31 can reciprocate and the relative rotation between the lock cylinder 30 and the housing 10 is limited; … …, not to be enumerated here.

Embodiment one (as shown in FIGS. 1 to 6)

The fixing member 21 is located between the limiting member 31 and the rotating member 22, an avoiding hole is formed on the fixing member 21, and the limiting shaft 32 passes through the avoiding hole and is inserted into the shaft hole 221, as shown in fig. 1 to 6.

Further, damping door lock 1 is installed in door closure 2 pivot 202, through first connecting portion and door closure 2 fixed connection, second connecting portion and organism workstation 3 fixed connection.

The fixed part 21 is located between the limiting part 31 and the rotating part 22, and the limiting shaft 32 can be inserted into the shaft hole 221 of the rotating part 22 only after passing through the fixed part 21, so that a corresponding avoiding hole is formed in the middle of the fixed part 21 to avoid the limiting shaft 32; at this time, the rotating part 22 is relatively close to the connection part of the machine body and the door cover 2, so that the second connection part is conveniently connected with the machine body or the door cover 2, and the second connection part is located on one side of the rotating part 22 away from the fixing part 21, so that the second connection part and the fixing part 21 cannot be influenced with each other, the structure of the second connection part can be simplified, and the size and the volume can be correspondingly reduced.

When the lock core 30 locks the second connecting part, the housing 10 and the second connecting part cannot rotate relatively, and the housing 10 cannot rotate normally due to the limitation of the workbench 3, so that the door cover 2 cannot rotate normally, and a door locking function is realized; when the lock core 30 unlocks the second connecting part, the housing 10 and the second connecting part can rotate relatively, so that the housing 10 can rotate freely, the door cover 2 can rotate freely, and the unlocking function is realized.

EXAMPLE two (not shown)

The difference from the first embodiment is that: the rotating member 22 is located between the limiting member 31 and the fixing member 21, the fixing member 21 is sleeved on the second connecting portion and can rotate relative to the second connecting portion, and the second connecting portion passes through the fixing member 21 and is fixedly connected with the machine body workbench.

Rotating member 22 is located between locating part 31 and the mounting 21, then mounting 21 is close to the connection position of organism and door closure 2 relatively, therefore the second connecting portion need pass mounting 21 and just can be fixed continuous with the organism workstation, consequently also need set up corresponding hole at the middle part of mounting 21, in order to dodge the second connecting portion, still need to guarantee simultaneously that relative rotation can take place between second connecting portion and the mounting 21, in order to guarantee to take place relative rotation between second connecting portion and the shell 10, consequently the hole at mounting 21 middle part is the round hole, and at least one section is cylindrical on the second connecting portion, in order to guarantee that mounting 21 can overlap and establish on the second connecting portion, and can rotate second connecting portion relatively.

EXAMPLE three (not shown)

The difference from the first embodiment is that: damping lock 1 is installed in organism workstation 3, through first connecting portion and workstation 3 fixed connection, second connecting portion and door closure 2 fixed connection.

EXAMPLE four (not shown)

The difference from the second embodiment is that: damping lock 1 is installed in organism workstation 3, through first connecting portion and workstation 3 fixed connection, second connecting portion and door closure 2 fixed connection.

In the third and fourth embodiments, when the lock cylinder 30 locks the second connecting portion, the housing 10 and the second connecting portion cannot rotate relatively, and the housing 10 is restricted by the workbench 3 and cannot rotate, so that the second connecting portion cannot rotate normally, the door cover 2 cannot rotate normally, and a door locking function is realized; when the lock core 30 releases the lock of the second connecting part, the housing 10 and the second connecting part can rotate relatively, so that the second connecting part can rotate freely, the door cover 2 can also rotate freely, and the unlocking function is realized.

In any of the above embodiments, one of the inner wall surface of the housing 10 and the outer peripheral edge of the fixing member 21 is provided with a positioning groove, and the other is provided with a positioning block 211, as shown in fig. 1, the positioning block 211 is embedded in the positioning groove, so that the fixing member 21 can be limited from rotating relative to the housing 10.

A positioning groove and a positioning block 211 are arranged between the inner wall surface of the shell 10 and the outer periphery of the fixing piece 21, the positioning block 211 is embedded into the positioning groove, relative rotation between the shell 10 and the fixing piece 21 can be limited, and the structure and the principle are simple; meanwhile, the cooperation of the positioning groove and the positioning block 211 also plays an effective positioning role in the assembly process between the fixing element 21 and the shell 10, so that the assembly efficiency of the damping door lock 1 is improved.

The number of the positioning grooves and the positioning blocks 211 is not particularly limited, and may be one or more, and the shapes of the positioning blocks may be the same, may not be completely the same, or may be completely different; the shapes of the positioning block and the positioning groove are not particularly limited, and the positioning block and the positioning groove can be long strips, cylinders, crosses and the like.

Furthermore, a sliding groove adapted to the fixed part 21 is further provided in the housing 10, the fixed part 21 is limited in the sliding groove and can slide axially along the sliding groove, the fixed part 21 and the rotating part 22 are both cams, and a protrusion is provided on one side opposite to each of the two cams, as shown in fig. 1, 4, 5 and 6; when the rotating element 22 and the housing 10 rotate relatively, the two cams interact with each other to move the fixed element 21 away from or close to the rotating element 22, as shown in fig. 4 to 6.

The fixed part 21 and the rotating part 22 are both cams, namely, the fixed part 21 and the rotating part 22 are provided with raised wheels, and the raised parts are arranged on the opposite sides of the fixed part 21 and the rotating part 22, so that the two cams form a jaw structure, in the process of opening or closing the door cover 2, the shell 10 and the second connecting part rotate relatively to drive the fixed part 21 and the rotating part 22 to rotate relatively, and at the moment, the raised parts on the two cams interact with each other to generate acting force in the axial direction between the two parts; because the spout is equipped with in the shell 10, the fixed part 21 can be along spout axial slip, and rotate piece 22 and organism or door closure 2 fixed linking to each other through the second connecting portion, axial motion can not produce, so at the in-process that door closure 2 opened and shut, fixed part 21 can be close to along the axial direction and rotate piece 22 or keep away from rotating piece 22, this makes the area of contact between fixed part 21 and the rotation piece 22 can change, thereby avoided the excessive wearing and tearing of fixed part 21 and rotation piece 22 to lead to the life-span to hang down excessively.

Further, the damper 20 further includes: the elastic element 23 is limited in the housing 10, one end of the elastic element 23 abuts against one end of the fixed element 21 away from the rotating element 22, and the elastic deformation of the elastic element 23 is gradually increased in the process that the fixed element 21 is away from the rotating element 22, as shown in fig. 4 to 6; the fixed member 21 slides in a direction away from the rotating member 22 when the door 2 is closed, and the fixed member 21 slides in a direction toward the rotating member 22 when the door 2 is opened.

The damper 20 further includes an elastic element 23, the elastic element 23 abuts against one end of the fixed element 21 away from the rotating element 22, and an elastic deformation amount of the elastic element 23 gradually increases in a process that the fixed element 21 is away from the rotating element 22, so that in a process that the fixed element 21 is away from the rotating element 22, the elastic element 23 stores elastic potential energy and applies resistance to the fixed element 21 to slow down a movement speed thereof, whereas in a process that the fixed element 21 is close to the rotating element 22, the elastic element 23 releases the elastic potential energy and applies power to the fixed element 21 to increase the movement speed thereof.

Further, when the fixed part 21 slides away from the rotating part 22, and the door cover 2 is in the closing process, the fixed part 21 receives the resistance force exerted by the elastic part 23, so that the closing speed of the door cover 2 is further slowed down, and the damping effect of the damper 20 is further improved; on the contrary, when the fixed part 21 slides towards the direction close to the rotating part 22, the door 2 is in the process of opening, and the fixed part 21 is subjected to the power exerted by the elastic part 23, so that the door 2 is opened more easily, and the use comfort of the user is further improved. In other words, when the door is closed, the jaw structure formed by the fixed member 21 and the rotating member 22 is moved from engagement (as shown in fig. 4) to disengagement (as shown in fig. 5), and the elastic member 23 provides resistance to reduce the door closing speed; when the door is opened, the jaw structure formed by the fixed part 21 and the rotating part 22 is separated (as shown in fig. 5) to be engaged (as shown in fig. 4), and the elastic part 23 provides power, so that the difficulty of opening the door is reduced.

Specifically, the moving direction of the fixing member 21 may be made to correspond to the opening and closing process of the door cover 2 by designing the shape of the protrusions on the two cams, and the shape and number of the protrusions are not particularly limited as long as the above-described function can be achieved. Preferably, a plurality of protrusions are arranged on each of the two cams, and the protrusions are uniformly distributed along the circumferential direction, as shown in fig. 1, and are matched in shape, so that the two cams can be completely butted (as shown in fig. 4) and completely separated (as shown in fig. 5 and 6). As for the elastic member 23, a compression spring (as shown in fig. 1, 4, 5, and 6), a torsion spring, or the like may be used.

Further, a first mounting cavity and a second mounting cavity are arranged in the housing 10, as shown in fig. 4 to 6, a partition plate is arranged between the first mounting cavity and the second mounting cavity, and a through hole is formed in the partition plate, as shown in fig. 1; the fixed member 21, the rotating member 22 and the elastic member 23 are installed in the first installation cavity, as shown in fig. 4 to 6, the other end of the elastic member 23 abuts against the cavity wall of the first installation cavity, a part of the lock cylinder 30 is limited in the second installation cavity, and another part of the lock cylinder 30 passes through the through hole and is inserted into the first installation cavity, as shown in fig. 4 to 6, to lock or unlock the second connection portion.

Specifically, as shown in fig. 1, the housing 10 includes: the main body comprises an upper cover 11 and a bottom cover 12, the upper cover 11 and the bottom cover 12 are mutually covered to define a first mounting cavity and a second mounting cavity, and one end of the first mounting cavity, which is far away from the second mounting cavity, is opened; the end cover 13 covers the open end of the main body and is fixedly connected with the main body, a gap is formed in the middle of the end cover 13, as shown in fig. 1, the second connecting part is connected with the machine body or the door cover 2 through the gap, and the damper 20 is located in the shell 10 and partially covers the gap.

A first mounting cavity and a second mounting cavity are arranged in the shell 10, the fixing part 21, the rotating part 22 and the elastic part 23 are mounted in the first mounting cavity, a sliding groove matched with the fixing part 21 is arranged in the first mounting cavity, one end of the elastic part 23 abuts against the fixing part 21, and the other end of the elastic part 23 abuts against the cavity wall of the first mounting cavity, so that the elastic deformation of the elastic part 23 can be gradually increased in the process that the fixing part 21 is far away from the rotating part 22 (namely, in the process that the door cover 2 is closed); one part of the lock cylinder 30 (i.e., one section of the stopper 31 and the stopper shaft 32) is stopped in the second mounting cavity, and the other part (i.e., the other section of the stopper shaft 32) is inserted into the first mounting cavity through the through-hole to lock or unlock the second connecting portion. By the arrangement, the mutual influence between the parts of the lock cylinder 30 and the damper 20 is avoided as much as possible, and the use reliability of the lock cylinder 30 and the damper 20 is improved.

Specifically, the shell 10 comprises a main body and an end cover 13, the main body comprises an upper cover 11 and a bottom cover 12, and the shell 10 is disassembled to facilitate the installation, the disassembly and the maintenance of the lock cylinder 30, the damper 20 and other structures; the gap on the end cover 13 is convenient for the second connecting part to extend out of the shell 10 to be connected with the machine body or the door cover 2, and is also convenient for the corresponding structure on the shell 10 or the door body to be inserted into the shell 10 to be connected with the second connecting part, and the part of the damper 20 positioned in the shell 10 covers the gap on the end cover 13, so that external sundries can be prevented from entering the damping door lock 1, and the damping door lock 1 is protected.

Further, when the fixed member 21 is located between the limiting member 31 and the rotating member 22, the other end of the elastic member 23 abuts against the partition, as shown in fig. 4 to 6, and the outer periphery of the rotating member 22 may be formed with a step structure, as shown in fig. 1, so that a sealing ring may be sleeved at the step to further improve the sealing performance of the housing 10; when the rotating member 22 is located between the limiting member 31 and the fixing member 21, the damper 20 may further include a gasket, the gasket is also sleeved on the second connecting portion and covers the gap of the end cover 13, and the other end of the elastic member 23 abuts against the gasket.

In any of the above embodiments, the damper door lock 1 further includes: an electric driving assembly 40, as shown in fig. 1 to 3, is partially disposed in the housing 10, is fixedly connected to the key cylinder 30, and is electrically connected to an electric control board of the washing machine for driving the key cylinder 30 to reciprocate.

The damping door lock 1 further comprises an electric drive assembly 40, the electric drive assembly 40 is electrically connected with an electric control board of the washing machine, so that reciprocating motion of the lock cylinder 30 can be realized according to program control of the electric control board, automatic door locking and automatic unlocking are further realized, the automation degree of the washing machine is improved, and the use comfort level of a user is further improved.

Wherein the electric drive assembly 40 comprises: an electromagnetic coil 41 and an electromagnetic core rod 42, as shown in fig. 4 to 6, the electromagnetic coil 41 is electrically connected with the electric control board; the electromagnetic core rod 42 is magnetically engaged with the electromagnetic coil 41 and can reciprocate along the axial direction of the electromagnetic coil 41 under the magnetic force of the electromagnetic coil 41; wherein, the electromagnetic core rod 42 is fixedly connected with the lock cylinder 30 to drive the lock cylinder 30 to reciprocate between a locking position and an unlocking position.

The electric drive assembly 40 comprises an electromagnetic coil 41 and an electromagnetic core rod 42, the electromagnetic coil 41 is electrically connected with the electric control board, and can generate a magnetic field after being electrified to apply magnetic force to the electromagnetic core rod 42 so as to drive the electromagnetic core rod 42 to reciprocate, and the electromagnetic core rod 42 is fixedly connected with the lock cylinder 30, so that the lock cylinder 30 can be driven to reciprocate between a locking position and an unlocking position, the electromagnetic drive sensitivity is high, and the use is reliable.

Further, the electric drive assembly 40 further includes: the elastic actuator 43, as shown in fig. 6, has both ends respectively abutting against the electromagnetic coil 41 and the key cylinder 30, and is compressed when the key cylinder 30 moves to the unlock position.

The electric driving assembly 40 further includes an elastic driving member 43 (e.g., a compression spring), both ends of the elastic driving member 43 respectively abut against the electromagnetic coil 41 and the key cylinder 30 and are compressed when the key cylinder 30 moves to the unlocking position, so that when the door is locked, the key cylinder 30 moves to the locking position under the combined action of the electromagnetic core rod 42 and the elastic driving member 43, thereby increasing the locking speed, and the reverse movement of the key cylinder 30 in the locking state can be limited, thereby increasing the reliability of the key cylinder 30 in locking the second connecting portion.

Of course, some mechanical limiting structures may be provided to improve the reliability of the locking of the second connecting portion by the key cylinder 30, such as: when the key cylinder 30 moves to the locking position, a hook just hooks the key cylinder 30, so that the reverse movement of the key cylinder 30 can be effectively prevented, thereby improving the reliability of locking the door.

The electromagnetic coil 41 receives a forward pulse current and a reverse pulse current, and drives the electromagnetic core rod 42 to reciprocate.

The electromagnetic coil 41 drives the electromagnetic core rod 42 to reciprocate by receiving the forward pulse current and the reverse pulse current, namely: when the door is locked, the electromagnetic coil 41 receives pulse current, is instantly electrified to generate magnetism, ejects the electromagnetic core rod 42, pushes the lock cylinder 30 to move to the locking position, and locks the second connecting part by the lock cylinder 30 to realize door locking as shown in fig. 6; when unlocking, the electromagnetic coil 41 also receives pulse current, and the instant energization generates magnetism, so that the electromagnetic core rod 42 is attracted back, the lock cylinder 30 is driven to move reversely to the unlocking position, as shown in fig. 5, the locking of the second connecting part is released, the door cover 2 recovers the rotating function, and the door cover can be freely opened. Of course, the electromagnetic coil 41 may drive the electromagnetic core rod 42 to reciprocate according to the power on and off, and shall be within the protection scope of the present invention.

Further, a switch device (such as a microswitch) can be arranged in the housing 10, the switch device is electrically connected with the electromagnetic coil 41 and is also mechanically matched with the lock cylinder 30, and the switch device can be triggered or disconnected when the lock cylinder 30 reciprocates, so that the electromagnetic coil 41 is automatically controlled, and the state of the electromagnetic coil 41 is corresponding to the motion process of the lock cylinder 30.

In any of the above embodiments, the damper door lock 1 further includes: manual drive assembly 50, as shown in FIGS. 1, 4, 5 and 6, has one end inserted into housing 10 to connect with lock cylinder 30 and the other end extending out of housing 10 for manually driving movement of lock cylinder 30.

The damping door lock 1 further comprises a manual driving assembly 50, wherein the manual driving assembly 50 is mechanically connected with the lock cylinder 30, so that a user can conveniently lock and unlock the door manually at any time according to needs; and for the above-mentioned embodiment that the electric driving assembly 40 drives the lock cylinder 30 to reciprocate, the manual driving assembly 50 can effectively avoid the situation that the door cover 2 cannot be opened due to the fact that the electric driving assembly 40 cannot drive the lock cylinder 30 to move when the electric driving assembly 40 fails.

Specifically, the manual driving assembly 50 comprises a pull rod mechanically connected with the lock cylinder 30, a hand piece connected with the pull rod, and a pressure spring sleeved on the pull rod and limited in the housing 10, as shown in fig. 1, the lock cylinder 30 can be driven to move by manually driving the hand piece, the pressure spring can realize automatic reset of the manual driving assembly 50, and the structure and the principle are simple. Preferably, the hand piece is a flexible pull rope, and the manual driving assembly 50 can only pull the lock cylinder 30 to realize the unlocking function, and is mainly used for manually unlocking and opening the door cover 2 when the electric driving assembly 40 fails. Of course, the hand-held piece can also be a rigid piece, and at this time, the manual driving assembly 50 can not only pull the lock cylinder 30 to realize the unlocking function, but also push the lock cylinder 30 to realize the door locking function.

In any of the above embodiments, the first connection portion includes a connection hole and/or a connection post.

The first connecting portion comprises a connecting hole and/or a connecting column, so that the shell 10 can be fixedly connected with the door cover 2 or the machine body through fasteners such as screws, and the fixing is simple, convenient and firm. Of course, since the fixing connection manner of the housing 10 and the door 2 or the body is various, the first connection portion is not limited to the connection hole and/or the connection column, which is not illustrated, but is within the protection scope of the present invention.

In any of the above embodiments, the second connecting portion at least partially protrudes from the housing 10, as shown in fig. 1 to 6, and the portion of the second connecting portion protruding from the housing 10 is formed as the connecting shaft 24, and the cross section of the connecting shaft 24 is non-circular, as shown in fig. 1.

The second connecting part at least partially protrudes out of the shell 10, so that the damping door lock 1 is integrally installed on one of the door cover 2 or the machine body when the damping door lock is installed, and then the second connecting part is directly connected with the other one of the door cover 2 or the machine body, so that the installation is very convenient and fast; the part of second connecting portion protrusion in shell 10 forms into connecting axle 24, the cross section of connecting axle 24 is non-circular (like square, D shape, triangle-shaped, ellipse etc.), then only need set up rather than the groove class structure of looks adaptation in door closure 2 or the organism rather than matched with, can realize the fixed connection of second connecting portion and door closure 2 or organism, guarantee the synchronism of second connecting portion and door closure 2 or organism motion in the circumferential direction, moreover, the steam generator is simple in structure, easy processing, the loading and unloading is convenient, and the mass production of being convenient for. Of course, the second connecting portion may be located entirely within the housing 10, such that the corresponding structure in the body or door 2 is inserted into the housing 10 to connect with the second connecting portion.

As shown in fig. 7 to 9, an embodiment of a second aspect of the present invention provides a washing machine including: the device comprises a machine body, a first clamping piece and a second clamping piece, wherein an accommodating cavity with an opening at one end is defined in the machine body; the door cover 2 is covered at the opening end of the accommodating cavity to open or close the accommodating cavity; and at least one damper door lock 1 as in any one of the embodiments of the first aspect, wherein the first connecting part of the damper door lock 1 is connected with one of the machine body and the door cover 2, and the second connecting part of the damper door lock 1 is connected with the other of the machine body and the door cover 2, so that the machine body and the door cover 2 are pivoted, as shown in fig. 8 and 9.

In the washing machine provided by the embodiment of the second aspect of the present invention, the machine body and the door cover 2 are pivotally connected through the damping door lock 1 in any one of the embodiments of the first aspect, so that all the beneficial effects of any one of the embodiments described above are achieved, and no further description is provided herein.

In one embodiment of the present invention, the damping door lock 1 has a first connecting portion connected to the door cover and a second connecting portion connected to the body so that the body is pivotally connected to the door cover 2.

When the key cylinder of the damper door lock moves to the locking position when the key cylinder 30 moves to the locking position, as shown in fig. 6, the second connecting portion is locked by the key cylinder 30, and the circumferential rotation thereof relative to the housing 10 is restricted, and since the first connecting portion on the housing 10 is fixedly connected to the door cover 2 and the second connecting portion of the damper 20 is fixedly connected to the body, when the relative rotation between the second connecting portion of the damper 20 and the housing 10 is restricted, the relative rotation between the door cover 2 and the body is also restricted, that is: the door cover 2 can not freely rotate relative to the machine body, so that the door locking function is realized; on the contrary, when the key cylinder 30 is reversely moved to the unlock position, as shown in fig. 4 and 5, the locking of the second connecting portion is released, so that the relative rotation between the second connecting portion and the housing 10 can be performed, and thus the door cover 2 can be normally opened and closed.

In another embodiment of the present invention, the damping door lock 1 has a first connecting portion connected to the body and a second connecting portion connected to the door cover, so that the body and the door cover 2 are pivotally connected.

When the key cylinder of the damper door lock moves to the locking position when the key cylinder 30 moves to the locking position, as shown in fig. 6, the second connecting portion is locked by the key cylinder 30, and the circumferential rotation thereof relative to the housing 10 is restricted, since the first connecting portion on the housing 10 is fixedly connected with the machine body and the second connecting portion of the damper 20 is fixedly connected with the door cover 2, when the relative rotation between the second connecting portion of the damper 20 and the housing 10 is restricted, the relative rotation between the door cover 2 and the machine body is also restricted, that is: the door cover 2 can not freely rotate relative to the machine body, so that the door locking function is realized; on the contrary, when the key cylinder 30 is reversely moved to the unlock position, as shown in fig. 4 and 5, the locking of the second connecting portion is released, so that the relative rotation between the second connecting portion and the housing 10 can be performed, and thus the door cover 2 can be normally opened and closed.

The operation of the washing machine provided by the present application will be described with reference to a specific embodiment.

One side that door closure 2 held the chamber is equipped with the connection lid, and the connection lid is the arc and forms door closure pivot 202 to inject installation space between the door closure, damping door lock installation 1 is in the door closure pivot, as shown in fig. 7, through screw and door closure 2 fixed connection, and the connecting axle 24 protrusion in shell 10 of damping door lock 1.

The organism is including the workstation 3 that is located the top, as shown in fig. 7, workstation 3 is equipped with the mounting groove 302 with pivot 202 matched with towards one side of door closure 2, and mounting groove 302 internal fixation has support 304, as shown in fig. 7, is equipped with the slot with connecting axle 24 looks adaptation on the support 304, and connecting axle 24 inserts in the slot, realizes the fixed connection with the organism.

When the door is opened, the jaw (i.e. the jaw structure formed by the fixed part and the rotating part) is separated to be meshed, namely the state of figure 5 is changed into the state of figure 4, the lock core of the door lock is positioned outside the jaw rotating part, and the door cover can be freely opened.

When the door is closed, the jaw is engaged to a separated state, namely, the state in fig. 4 is changed to the state in fig. 5, and the pressure spring 1 (namely, the elastic element) is pressed to generate resistance, so that the damping effect of the door cover closing is achieved. After current pulse is received to the lock, solenoid circular telegram in the twinkling of an eye, produce magnetism, the electromagnetism plug is popped out by magnetic force, under pressure spring 2 (elastic drive spare promptly) combined action, promote the lock core, make the lock core pass tooth inlay translation piece (the mounting promptly), stretch in tooth inlays the rotation piece of structure, as shown in figure 6, lock core and tooth inlay rotation piece fitting surface are the plane (the spacing axle of lock core promptly and the fitting surface non-cylinder face in rotation piece shaft hole), make to rotate the piece and can not rotate, thereby the door closure is unable to be rotatory, realizes the lock door function.

After the door lock receives the electric pulse again, the electromagnetic coil is electrified instantly to generate magnetism, the electromagnetic core rod is attracted by the magnetic force, the lock core connected with the electromagnetic core rod is taken out of the jaw rotating piece at the same time, as shown in figure 5, the door lock is opened, and the door cover recovers the rotating function. The whole damping door lock of door lock is installed inside the door closure, avoids inside water entering door closure and workstation, reaches waterproof safe purpose.

In conclusion, the damping door lock provided by the invention integrates the door lock and the damper together, and indirectly limits the rotation of the door cover through the limitation of the lock cylinder on the damper, so that the door locking function is realized, holes do not need to be formed in the door cover and the workbench, and the problem that the safety protection of water leakage at the opening is needed in the prior art is avoided; and the damper and the door lock are integrated into a damping door lock, and the damping door lock has a damping function and a door locking function, so that the washing machine is more compact in structure and higher in assembly efficiency.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

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

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A damped door lock (1) for a washing machine comprising a machine body and a door cover (2), characterized in that said damped door lock (1) comprises:

a housing (10) provided with a first connection portion;

the damper (20) is at least partially arranged in the shell (10) and is used for increasing the resistance force applied to the door cover (2) in the closing process, the damper (20) is provided with a second connecting part which can rotate relative to the shell (10), one of the second connecting part and the first connecting part can be connected with the machine body, and the other one can be connected with the door cover (2) so as to enable the door cover (2) to be pivoted with the machine body;

a lock cylinder (30) mounted in the housing (10) and capable of reciprocating between a lock position and an unlock position in the housing (10), and locking the second connecting portion to restrict the second connecting portion from rotating relative to the housing (10) when moved to the lock position and releasing the locking of the second connecting portion when moved to the unlock position;

the damper (20) includes:

the fixing piece (21) is arranged in the shell (10), is matched with the shell (10) and can limit the rotation of the fixing piece (21) relative to the shell (10); and

the rotating piece is arranged in the shell (10), can rotate relative to the shell (10), is arranged opposite to the fixing piece (21), and is mutually abutted and rubbed with the fixing piece (21) in the closing process of the door cover (2);

the second connecting part is fixedly connected with the rotating part.

2. The damped door lock (1) according to claim 1, characterized in that the lock cylinder (30) comprises:

a limiting piece (31) which is mounted in the shell (10) in a reciprocating manner and is matched with the shell (10) to limit the lock cylinder (30) to rotate relative to the shell (10); and

spacing axle (32), with locating part (31) link to each other, and its cross section is non-circular, be equipped with in the rotation piece with shaft hole (221) of spacing axle (32) looks adaptation, spacing axle (32) can insert or deviate from shaft hole (221) to locking or unblock second connecting portion.

3. The damped door lock (1) according to claim 2,

the fixing piece (21) is located between the limiting piece (31) and the rotating piece, an avoiding hole is formed in the fixing piece (21), and the limiting shaft (32) penetrates through the avoiding hole to be inserted into the shaft hole (221).

4. The damped door lock (1) according to claim 2,

the rotating part is located between the limiting part (31) and the fixing part (21), the fixing part (21) is sleeved on the second connecting part and can rotate relative to the second connecting part, and the second connecting part penetrates through the fixing part (21) and the machine body or the door cover (2) is connected.

5. A damped door lock (1) according to any one of claims 1 to 4,

one of the inner wall surface of the shell (10) and the outer periphery of the fixing piece (21) is provided with a positioning groove, the other one of the inner wall surface of the shell and the outer periphery of the fixing piece (21) is provided with a positioning block (211), and the positioning block (211) is embedded into the positioning groove and can limit the rotation of the fixing piece (21) relative to the shell (10).

6. A damped door lock (1) according to claim 5,

the fixed part (21) and the rotating part are cams, one sides of the two cams opposite to each other are provided with protrusions, a sliding groove matched with the fixed part (21) is further formed in the shell (10), and the fixed part (21) is limited in the sliding groove and can axially slide along the sliding groove;

when the rotating piece and the shell (10) rotate relatively, the bulges on the two cams interact with each other, so that the fixing piece (21) is far away from or close to the rotating piece.

7. The damped door lock (1) according to claim 6 wherein the damper (20) further comprises:

the elastic piece (23) is limited in the shell (10), one end of the elastic piece is abutted against one end, away from the rotating piece, of the fixed piece (21), and the elastic deformation of the elastic piece (23) is gradually increased in the process that the fixed piece (21) is away from the rotating piece;

the door comprises a door cover (2), a fixing piece (21) and a rotating piece, wherein in the process that the door cover (2) is closed, the fixing piece (21) slides in the direction far away from the rotating piece, and in the process that the door cover (2) is opened, the fixing piece (21) slides in the direction close to the rotating piece.

8. A damped door lock (1) according to claim 7,

a first installation cavity and a second installation cavity are arranged in the shell (10), a partition plate is arranged between the first installation cavity and the second installation cavity, and a through hole is formed in the partition plate;

the fixing piece (21), the rotating piece and the elastic piece (23) are installed in the first installation cavity, the other end of the elastic piece (23) is abutted against the cavity wall of the first installation cavity, one part of the lock cylinder (30) is limited in the second installation cavity, and the other part of the lock cylinder (30) penetrates through the through hole and is inserted into the first installation cavity to lock or unlock the second connecting portion.

9. The damped door lock (1) according to claim 8, characterized in that the housing (10) comprises:

the main body comprises an upper cover (11) and a bottom cover (12), the upper cover (11) and the bottom cover (12) are mutually covered to define a first installation cavity and a second installation cavity, and one end, far away from the second installation cavity, of the first installation cavity is open; and

and the end cover (13) is covered at the open end of the main body and is fixedly connected with the main body, a gap is formed in the middle of the end cover (13), the second connecting part is connected with the machine body or the door cover (2) through the gap, and the part of the damper (20) positioned in the shell (10) covers the gap.

10. The damped door lock (1) according to any one of claims 1 to 4, further comprising:

and the electric drive assembly (40) is partially positioned in the shell (10), is fixedly connected with the lock cylinder (30), is electrically connected with an electric control board of the washing machine and is used for driving the lock cylinder (30) to reciprocate.

11. The damped door lock (1) according to claim 10, characterized in that said electric drive assembly (40) comprises:

an electromagnetic coil (41) electrically connected to the electric control board; and

an electromagnetic core rod (42) magnetically engaged with the electromagnetic coil (41) and capable of reciprocating in the axial direction of the electromagnetic coil (41) by the magnetic force of the electromagnetic coil (41);

the electromagnetic core rod (42) is fixedly connected with the lock cylinder (30) so as to drive the lock cylinder (30) to reciprocate between the locking position and the unlocking position.

12. The damped door lock (1) according to claim 11, wherein the electric drive assembly (40) further comprises:

and the two ends of the elastic driving piece (43) are respectively abutted against the electromagnetic coil (41) and the lock cylinder (30) and are compressed when the lock cylinder (30) moves to the unlocking position.

13. The damped door lock (1) according to claim 11,

the electromagnetic coil (41) drives the electromagnetic core rod (42) to reciprocate by receiving forward pulse current and reverse pulse current.

14. The damped door lock (1) according to any one of claims 1 to 4, further comprising:

and one end of the manual driving assembly (50) is inserted into the shell (10) and connected with the lock cylinder (30), and the other end of the manual driving assembly extends out of the shell (10) and is used for manually driving the lock cylinder (30) to move.

15. A damped door lock (1) according to any one of claims 1 to 4,

the first connecting part comprises a connecting hole and/or a connecting column; and/or

The second connecting portion at least partially protrudes out of the shell (10), a connecting shaft (24) is formed by the portion of the second connecting portion protruding out of the shell (10), and the cross section of the connecting shaft (24) is non-circular.

16. A washing machine, characterized by comprising:

the device comprises a machine body, a first clamping piece and a second clamping piece, wherein an accommodating cavity with an opening at one end is defined in the machine body;

the door cover (2) is covered at the opening end of the accommodating cavity so as to open or close the accommodating cavity; and

at least one damped door lock (1) according to any one of claims 1 to 15, the first connecting part of the damped door lock (1) being connected to one of the body and the door cover (2), the second connecting part of the damped door lock (1) being connected to the other of the body and the door cover (2) so as to pivot the body and the door cover (2).