CN107904866B - Washing machine door lock - Google Patents

Washing machine door lock Download PDF

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Publication number
CN107904866B
CN107904866B CN201711261084.4A CN201711261084A CN107904866B CN 107904866 B CN107904866 B CN 107904866B CN 201711261084 A CN201711261084 A CN 201711261084A CN 107904866 B CN107904866 B CN 107904866B
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China
Prior art keywords
locking
block
washing machine
piece
lock
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CN201711261084.4A
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Chinese (zh)
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CN107904866A (en
Inventor
王立孟
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WEIZHOU TIANJIAN ELECTRICAL EQUIPMENT CO Ltd
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WEIZHOU TIANJIAN ELECTRICAL EQUIPMENT CO Ltd
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Priority to CN201711261084.4A priority Critical patent/CN107904866B/en
Publication of CN107904866A publication Critical patent/CN107904866A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/28—Doors; Security means therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor

Abstract

A washing machine door lock comprises a door hook, a lock shell, a rotating piece and a lock catch, wherein the lock catch locks the rotating piece at a rotating piece locking position when the washing machine works, and releases the locking of the rotating piece when the washing machine does not work; the lock catch comprises a locking rod which can be rotationally arranged in the lock shell around a rotating shaft between a locking rod locking position and a locking rod resetting position, wherein when the locking rod is positioned at the locking rod locking position, the rotating piece is prevented from rotating towards the direction of the rotating piece resetting position by abutting against the rotating piece positioned at the rotating piece locking position, and when the locking rod is positioned at the locking rod resetting position, the abutting against the rotating piece positioned at the rotating piece locking position is removed. The problem of current washing machine lock need through the locking force of a plurality of different part transmissions, lead to the washing machine lock not enough to the locking force of washing machine door, can't firmly reliable fixed washing machine door is solved.

Description

Washing machine door lock
Technical Field
The invention relates to the technical field of washing machine door locks, in particular to a washing machine door lock.
Background
The door lock of the washing machine plays an important role in the washing machine, and when the washing machine works normally, the door cover of the washing machine is required to be connected with the washing machine main body through the door lock of the washing machine so as to prevent the door cover from being opened randomly when the washing machine works, so that not only can external sundries possibly fall into the washing machine to damage the washing machine, but also can bring danger to people who touch the main body part in the washing machine carelessly; for the drum washing machine which is widely used day by day, the door lock of the washing machine is more important, if the door of the washing machine can not be locked when the washing machine works for washing the clothes normally, the washing water can splash and the clothes can fly out of the washing space, so that the product quality of the washing machine is seriously influenced, and great inconvenience is brought to normal use.
At present, as shown in fig. 16, chinese patent document CN107245845A discloses a door lock of a washing machine in the prior art, which comprises a door hook; a lock case; a rotation member 101 rotatably installed in the lock case through a connection shaft, having a coupling portion adapted to be coupled with the door hook, having a rotation member reset position and a rotation member locking position; a shackle 104 having a locking bar reset position and a locking bar locking position; the locking matching structure is arranged on the rotating part 101 and rotates synchronously with the rotating part 101; the lock catch unlocking structure is connected with the electromagnetic driving piece at one end and the lock catch 104 at the other end, and comprises an unlocking slide block 105, a first connecting structure and a second connecting structure, wherein the unlocking slide block 105 is connected with the lock catch 104; and one end of the unlocking slide block driving structure is connected with the electromagnetic driving part, and the other end of the unlocking slide block driving structure is connected with the unlocking slide block 105 and used for driving the unlocking slide block 105 to further drive the lock catch 104 to move and unlock. The first connecting structure comprises a U-shaped through hole arranged on the lock catch 104; and the driving column is arranged on the unlocking sliding block 105, is inserted into the U-shaped through hole, and drives the lock catch 104 to act by pushing and pulling the side wall of the U-shaped through hole. The unlocking slide block driving structure comprises an unlocking piece 106, a first slide block and a second slide block, wherein one end of the unlocking piece 106 is rotatably connected with the electromagnetic driving piece, and the other end of the unlocking piece is provided with a first inclined plane; a second inclined surface provided on the unlocking slider 105 and opposite to the first inclined surface; unlocking piece elastic component that resets, one end with unlocking piece 106 is connected, the other end with the electromagnetic drive spare is connected, is used for elastic drive unlocking piece 106 makes first inclined plane with the second inclined plane is relative.
The washing machine door lock of the patent literature is used for guaranteeing the lock catch that the washing machine door can not be punched when the washing machine works normally for washing clothes, the locking and unlocking transmission structure is complex, the action of the electromagnetic driving part needs to pass through the unlocking key, the unlocking slide block and the U-shaped through hole and the driving column which are matched with each other for transmission can be connected with the lock catch in a transmission way, the production, the use and the maintenance cost is high, the fault is easy to occur, the transmission force arm between the electromagnetic driving part and the lock catch is short, the transmission distance is long, the locking force needs to be transmitted through a plurality of different parts, the locking force of the washing machine door lock on the washing machine door is insufficient, and the washing machine.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the problems that the locking force of the washing machine door lock on the washing machine door is insufficient and the washing machine door cannot be firmly and reliably fixed because the locking force needs to be transmitted by a plurality of different components in the existing washing machine door lock, thereby providing the washing machine door lock, which comprises
A door hook adapted to be mounted on a door of the washing machine;
the lock shell is arranged on the washing machine body, corresponds to the door hook and is provided with a lock hole for inserting the door hook;
the rotating piece is rotatably arranged in the lock shell through a connecting shaft and is provided with a combining part matched and connected with the door hook, and the rotating piece is provided with a rotating piece reset position where the door hook is not inserted into the lock hole and a rotating piece locking position where the door hook is inserted into the lock hole;
the lock catch locks the rotating part at the locking position of the rotating part when the washing machine works, and releases the locking of the rotating part when the washing machine does not work;
the lock catch comprises
A locking lever rotatably provided in the housing around a rotation axis between a locking lever locking position where the rotation member is prevented from rotating in a direction of a rotation member reset position by abutting against the rotation member in the rotation member locking position and a locking lever reset position where the abutment against the rotation member in the rotation member locking position is released;
a first biasing member that applies a biasing force to the lock lever to rotate in a direction toward the turning member to rotate the lock lever from the lock lever reset position to the lock lever lock position, and a reset mechanism for holding the turning member in the turning member reset position against a pushing force of the lock lever is further provided to the washing machine door lock;
the lock catch limiting structure comprises a limiting block movably arranged in the lock shell and a limiting block driving structure used for driving the limiting block to move between a limiting block locking position and a limiting block resetting position, when the limiting block is positioned at the limiting block locking position, the limiting block pushes against the locking rod positioned at the locking rod locking position to prevent the locking rod from rotating towards the locking rod resetting position direction, and when the limiting block is positioned at the limiting block resetting position, the pushing against of the locking rod is released;
when the door is closed, the rotating piece is driven by the door hook and rotates from the rotating piece resetting position to the rotating piece locking position, the combining part rotates along with the rotating piece to be combined with the door hook, meanwhile, the first biasing piece drives the locking rod to move to the locking rod locking position, the locking rod locks the rotating piece under the action of the limiting block when moving to the limiting block locking position, when the door is opened, the limiting block moves to the limiting block resetting position to release the locking of the locking rod, and further release the locking of the rotating piece, after the door hook is pulled out under the action of external force, the rotating piece rotates to the rotating piece resetting position under the action of the door hook, and the resetting mechanism is used for enabling the rotating piece to overcome the biasing force of the first biasing piece and keep at the rotating piece resetting position, while maintaining the locking lever in the locking lever reset position.
Furthermore, the rotating shaft is arranged in the middle of the locking rod or on one side close to the rotating part and is rotatably arranged in a groove in the lock shell.
Further, the first biasing member is a spring having one end connected to the locking lever and the other end connected to the housing.
Furthermore, a first limiting groove used for limiting the reset position or the locking position of the locking rod is arranged in the inner cavity of the lock shell.
Further, the reset mechanism is a second biasing member, and drives the rotating member to rotate to the rotating member reset position and push the washing machine door provided with the door hook to pop open against the biasing force of the first biasing member.
Furthermore, the second biasing member is a torsion spring, and is sleeved on the connecting shaft, one end of the second biasing member is fixedly connected with the rotating member, and the other end of the second biasing member is fixedly connected with the lock shell.
Furthermore, the limiting block driving structure comprises a driving slider provided with a slider guide groove, and the driving slider moves back and forth under the driving of the driving assembly, so that the limiting block is driven by the slider guide groove to move to the limiting block locking position to block the locking rod, or retracts to the limiting block resetting position to cancel the blocking of the locking rod.
Furthermore, the slide block guide groove comprises a first inclined surface and a second inclined surface which are oppositely arranged, and the distribution direction of the first inclined surface and the second inclined surface is parallel to the moving direction of the limiting block;
the limiting block cylinder is arranged on the limiting block, inserted into the sliding block guide groove and positioned between the first inclined plane and the second inclined plane;
when the drive slider moves towards the direction far away from one side of the drive assembly, the second inclined plane pushes the limiting block cylinder to enable the limiting block to move towards the limiting block locking position:
when the driving slider moves towards the direction close to one side of the driving assembly, the first inclined plane pushes the limiting block cylinder to push the limiting block to move towards the resetting position of the limiting block.
Furthermore, the washing machine door lock device also comprises a washing machine control device for controlling the starting or stopping of the washing machine, the washing machine control device comprises a movable insertion piece and a static insertion piece for controlling the connection or disconnection of a power supply circuit, and a circuit linkage component arranged on the driving slider, the driving slider moves towards the direction close to one side of the driving component, the movable insertion piece and the static insertion piece are driven to be separated through the circuit linkage component, and the power supply circuit is controlled to be disconnected; the drive slider orientation is kept away from the direction motion of drive assembly one side, circuit linkage part is kept away from move the inserted sheet, move the inserted sheet receive self elastic action with quiet inserted sheet is laminated mutually, controls power supply line intercommunication.
Furthermore, the washing machine door lock device also comprises an electrified protection component which is linked with the door hook and used for ensuring that the washing machine cannot be started when the door hook is not inserted into the lock hole or is not inserted in place.
Furthermore, the power-on protection component comprises a poke rod arranged corresponding to the movable insertion piece and a transmission rod arranged in linkage with the door hook and the poke rod respectively;
the poking rod is rotatably arranged in the lock shell, one end of the poking rod, which is close to the movable insertion sheet, is provided with a first protruding end used for poking the movable insertion sheet to separate the movable insertion sheet from the static insertion sheet, the other end of the poking rod is in transmission connection with a linkage clamping hook at the end part of the transmission rod through a second protruding end, the transmission rod is provided with a third biasing part, the third biasing part applies a biasing force towards the door hook direction to the transmission rod to enable the transmission rod and the door hook to be matched and connected, the transmission rod moves towards the direction far away from the door hook under the driving of the door hook inserted into the lock hole, so that the poking rod is driven to rotate to block the movable insertion sheet and the static insertion sheet, the circuit linkage part is still positioned between the movable insertion sheet and the static insertion sheet at the moment to control the power line to be cut off, and when the, the transfer line is in under the effect of third biasing part, drive thereby the poker rod rotates and promotes move the inserted sheet and keep away from quiet inserted sheet blocks move the inserted sheet reset with quiet inserted sheet laminating.
Further, the third biasing member is a spring having one end connected to the transmission rod and the other end connected to the lock case.
Further, still include and rotate a limit structure, rotate a limit structure with rotate the piece linkage, be used for with it keeps to rotate the piece and keep rotating a latched position to make the hasp locking rotate the piece.
Furthermore, the rotating part limiting structure comprises a locking block and an unlocking sliding block which is arranged corresponding to the locking block; the locking block is provided with a clamping structure which is matched and connected with the rotating piece, the locking block is provided with a locking block resetting position corresponding to the rotating piece resetting position and a locking block limiting position corresponding to the rotating piece locking position so as to keep the rotating piece at the rotating piece locking position, and the unlocking sliding block is used for triggering the locking block to slide to the locking block resetting position and cancelling the limiting of the rotating piece;
the locking piece is provided with a fourth biasing member, and the fourth biasing member applies a biasing force to the locking piece to slide towards the locking piece reset position;
when the door hook is inserted into the rotating piece to be matched and connected, the rotating piece drives the locking block to slide to the limiting position of the locking block, and the locking block are connected in a clamping mode through the clamping structure; when the door plate of the washing machine is pressed or the inner drum of the washing machine is beaten from the inside to drive the door plate of the washing machine to be pushed outwards, the rotating piece is separated from the locking piece under force, and the locking piece enters the locking piece reset position under the driving of the biasing force of the fourth biasing piece.
Furthermore, a guide structure for guiding the lock block to slide between the lock block limiting position and the lock block resetting position is arranged between the lock shell and the lock block.
Further, the fourth biasing member is a spring having one end connected to the lock block and the other end connected to the lock housing.
Furthermore, the unlocking slide block is in transmission connection with the driving slide block, when the driving slide block drives the locking block to move to the position of the limiting block reset, the unlocking slide block pushes the locking block to move, the locking block is separated from the rotating piece under the stress, and the locking block enters the position of the locking block reset under the driving of the biasing force of the fourth biasing piece.
Furthermore, a telescopic push rod arranged towards the surface of the unlocking slide block is arranged on the driving slide block, a step arranged corresponding to the telescopic push rod is arranged on the unlocking slide block, and the step comprises a step upper section, a step lower section and an inclined plane for transiting the step upper section and the step lower section;
when the driving slide block drives the limiting block to move to the limiting block locking position, the driving slide block drives the telescopic push rod to move from the upper step section to the lower step section, and the telescopic push rod extends out to be attached to the inclined surface; when the driving slide block drives the limiting block to move to the limiting block reset position, the telescopic push rod pushes the unlocking slide block to move towards the locking block along the inclined surface, so that the locking block is pushed to be separated from the rotating piece, and the locking block enters the locking block reset position under the driving of the biasing force of the fourth biasing member.
Further, the telescopic push rod comprises a cap body with a hollow inner cavity, and a fifth biasing member arranged in the cap body, wherein the cap body and the driving slider are connected through the fifth biasing member, and the fifth biasing member applies a biasing force to the cap body towards the unlocking slider.
Further, the driving assembly is an electromagnetic driving member, which includes:
an electromagnetic coil;
an iron core disposed inside the electromagnetic coil;
the driving sliding block is connected with the iron core and can be driven by the iron core to reciprocate along the direction perpendicular to the movement direction of the unlocking sliding block, so that the unlocking sliding block is driven to move.
Further, the door lock device of the washing machine further comprises an emergency unlocking device for opening the door of the washing machine in an emergency.
The technical scheme of the invention has the following advantages:
1. according to the washing machine door lock, the rotating piece is locked through the lock catch and the lock catch limiting structure which are matched with each other, so that the door cover cannot be opened when the washing machine works; the lock catch only comprises a locking rod and a first biasing part, the first biasing part drives the locking rod to rotate to block the rotating part, then the rotating part is locked through the lock catch limiting structure, the locking rod directly locks the rotating part through a lever principle, complex transmission parts in the prior art are not needed, the locking force can be effectively improved through the lever principle, the transmission efficiency is improved, and the loss of the locking force in the transmission process is avoided.
2. According to the washing machine door lock provided by the invention, the rotating shaft is arranged on one side of the locking rod close to the rotating part, so that the force arm of the locking rod on one side close to the lock catch limiting structure is larger than that on one side close to the rotating part, the lock catch limiting structure can transmit larger locking force with smaller driving force, the locking force on the rotating part is improved, the locking capacity of the washing machine door lock is improved, and the washing machine door is prevented from being opened beyond a washing machine door.
3. According to the washing machine door lock provided by the invention, the first limiting groove is arranged in the inner cavity of the lock shell and is used for limiting the reset position or the locking position of the locking rod, so that the excessive rotation of the locking rod is avoided, the use reliability of the washing machine door lock is effectively improved, and the locking rod is ensured to effectively transmit locking force.
4. The washing machine door lock provided by the invention has the advantages that the limit block driving structure drives the limit block to move between the limit block locking position and the limit block resetting position, so that the locking rod is released or blocked, and the transmission structure is simple and reliable.
5. According to the washing machine door lock provided by the invention, the second biasing part is arranged to drive the rotating part to return to the rotating part reset position, so that after the washing machine finishes washing work, the rotating part can turn towards the door hook direction to enable the door hook to pop out of the lock body, and the washing machine door can be automatically opened.
6. According to the washing machine door lock provided by the invention, the driving assembly drives the sliding block to move back and forth, and then the sliding block guide groove on the driving sliding block drives the limiting block to extend out to block the lock catch or retract to cancel the blocking of the lock catch, so that the locking rod is released or blocked, and the washing machine door lock has the advantages of simple and reliable transmission structure.
7. According to the washing machine door lock provided by the invention, the circuit linkage part is arranged on the driving sliding block, and the circuit linkage part controls the washing machine to start or stop by controlling the connection or disconnection of the movable inserting piece and the static inserting piece, so that the safety of the washing machine is effectively improved, the washing machine cannot be started when the locking key of the washing machine is not pressed and the limiting block driving structure does not extend out to limit the locking rod, and the use safety of the washing machine is improved.
8. According to the washing machine door lock provided by the invention, the electric protection component comprises the poke rod arranged corresponding to the movable inserting piece and the transmission rod respectively linked with the door hook and the poke rod, and the transmission rod is driven by inserting or pulling out the door hook, so that the movable inserting piece and the static inserting piece are controlled to be connected or disconnected, the washing machine cannot be started when the washing machine door is not closed, and the use safety of the washing machine is improved.
9. The invention provides a washing machine door lock.A rotating part limiting structure comprises a locking block and an unlocking slide block which is arranged corresponding to the locking block; be provided with on the locking piece and rotate the joint structure that the cooperation links to each other, the locking piece passes through the joint structure and rotates the piece block, will rotate the piece and keep rotating a latched position to make the hasp locking rotate the piece, the unblock slider passes through the drive slider drive, triggers the locking piece and slides to the reset position, and the cancellation is spacing rotating the piece, and its simple structure is reliable, can keep rotating the piece at a rotating latched position effectively, thereby makes the hasp locking rotate the piece.
10. According to the washing machine door lock, the guide structure is arranged in the lock shell, and the lock block is guided to slide towards the limiting position or the reset position, so that the use reliability of the washing machine door lock is effectively improved, and the limit of the lock block on a rotating part is guaranteed or the limit is relieved.
11. According to the washing machine door lock provided by the invention, the telescopic push rod arranged on the driving slide block is mutually clamped or separated with or from the step on the unlocking slide block, so that the unlocking slide block is driven by the driving slide block to push the locking block to limit or release the limit of the rotating piece, the unlocking slide block is pushed when the telescopic push rod extends out, the association with the unlocking slide block is cancelled when the telescopic push rod retracts, the transmission structure is simple and reliable, the unlocking function of driving the unlocking slide block can be realized, the unlocking slide block cannot be driven when the driving slide block extends out, and the unlocking slide block is prevented from being unlocked by the unlocking slide block.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is an exploded view of a washing machine door lock according to the present invention;
FIG. 2 is a schematic perspective view of the internal structure of the door lock of the washing machine when the door lock is inserted into the door hook according to the present invention;
FIG. 3 is a schematic perspective view of the door hook of the present invention inserted into a door lock activation power source to activate the locking key, the locking lever maintaining a locked position with respect to the rotating member;
FIG. 4 is a schematic perspective view of the internal structure of a washing machine door lock when the door hook provided by the present invention is inserted into the door lock and the power supply is activated to activate the upper lock key, and the locking rod keeps locking the rotating piece;
FIG. 5 is a schematic view of the connecting structure of the locking lever and the rotary member for keeping the locking lever locked to the rotary member according to the present invention;
FIG. 6 is a schematic perspective view of a driving slider having a slider guide groove according to the present invention;
FIG. 7 is a schematic perspective view of the power protection assembly when the door hook is inserted into the rotating member, the power protection assembly releases the protection of the control device of the washing machine, and the washing machine can be started;
FIG. 8 is a schematic perspective view of the power protection assembly when the door hook is not inserted with the rotating member, the power protection assembly protects the control device of the washing machine, and the washing machine cannot be started according to the present invention;
FIG. 9 is a schematic perspective view of the door hook of the present invention inserted into the rotating member and activated by the power source to activate the locking key, the locking piece being retained to the rotating member;
fig. 10 is a schematic action diagram illustrating that when the lock key is pressed again to cancel unlocking after the power supply is started to activate the lock key, the unlocking slider pushes the lock block to release the limiting effect of the lock block on the rotating member;
FIG. 11 is a schematic perspective view of a lock case with a guide slot and a first position-limiting slot according to the present invention;
FIG. 12 is a first schematic view of the internal structure of the door lock of the washing machine when the door hook is inserted into the rotating member and the power supply is not activated to activate the locking key;
FIG. 13 is a second schematic view of the internal structure of the door lock of the washing machine when the door hook is inserted into the rotating member and the power supply is not activated to activate the locking key;
FIG. 14 is a first schematic view of the internal structure of the door lock of the washing machine when the door hook provided by the present invention is inserted into the rotating member and the power supply is activated to activate the locking key;
FIG. 15 is a second schematic view of the internal structure of the door lock of the washing machine when the door hook provided by the present invention is inserted into the rotating member and the power supply is started to activate the locking key;
FIG. 16 is a schematic perspective view of a door lock of a washing machine with a self-locking function in the prior art;
description of reference numerals:
1-door hook; 2-a rotating member; 3-connecting the shaft; 4-a binding moiety; 5-a locking lever; 6-a first biasing member; 7-a limiting block; 8-a second biasing member; 9-a slide block guide groove; 901-a first bevel; 902-a second bevel; 10-driving the slide block; 11-a drive assembly; 12-moving the inserting sheet; 13-static inserting sheet; 14-a circuit linkage member; 15-a poke rod; 16-a transmission rod; 17-a third biasing member; 18-a locking piece; 19-unlocking the slider; 20-a clamping structure; 21-a fourth biasing member; 22-a guide groove; 23-a first limit groove; 24-a telescopic push rod; 25-step; 26-inclined plane; 101-a rotating member; 104-locking; 105-an unlocking slide; 106-unlocking.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A washing machine door lock is described, the exploded view of the washing machine door lock shown in figure 1, comprising a door hook 1 adapted to be mounted on a washing machine door;
the lock shell is arranged on the washing machine body, corresponds to the door hook 1 and is provided with a lock hole for inserting the door hook 1;
the rotating piece 2 is rotatably arranged in the lock shell through a connecting shaft 3, a combining part 4 matched and connected with the door hook 1 is arranged on the rotating piece 2, and the rotating piece 2 is provided with a rotating piece resetting position where the door hook 1 is not inserted into the lock hole and a rotating piece locking position where the door hook 1 is inserted into the lock hole;
the lock catch locks the rotating part 2 at the rotating part locking position when the washing machine works, and releases the locking of the rotating part 2 when the washing machine does not work;
as shown in fig. 2, the latch includes:
a lock lever 5 rotatably provided in the lock case around a rotation axis between a lock lever locking position where the rotation member is prevented from rotating in a direction of a rotation member returning position by abutting against the rotation member at the rotation member locking position and a lock lever returning position where the abutment of the rotation member 2 at the rotation member locking position is released when the lock lever 5 is at the lock lever returning position;
the first biasing member 6 is a spring having one end connected to the locking lever 5 and the other end connected to the lock case; the first biasing member 6 applies a biasing force to the locking lever 5, which rotates towards the direction of the rotating member 2, so that the locking lever 5 rotates from the locking lever reset position to the locking lever locking position, and the washing machine door lock is further provided with a reset mechanism, which is used for enabling the rotating member 2 to overcome the thrust of the locking lever 5 and keep at the rotating member reset position, wherein the reset mechanism is a torsion spring, is sleeved on the connecting shaft 3, one end of the reset mechanism is fixedly connected with the rotating member 2, the other end of the reset mechanism is fixedly connected with the lock shell, and drives the rotating member 2 to overcome the biasing force of the first biasing member 6, rotate to the rotating member reset position and push the washing machine door provided with the door hook 1 to bounce open. The torsional spring has realized keeping rotating 2 and being in the effect that rotates the reset position to realized simultaneously that washing machine accomplishes the laundry work after, rotating the piece and can making the door hook pop out the lock body towards the upset of door hook direction, realized the automatic function of opening of washing machine door.
The lock catch limiting structure comprises a limiting block 7 movably arranged in the lock shell and a limiting block driving structure used for driving the limiting block 7 to move between a limiting block locking position and a limiting block resetting position, a door hook shown in fig. 3 and 4 is inserted into a door lock starting power supply to activate a locking key, and a three-dimensional schematic diagram of a locking rod for locking a rotating piece is kept, when the limiting block 7 is in the limiting block locking position, the limiting block abuts against the locking rod 5 in the locking rod locking position, the locking rod 5 is prevented from rotating towards the locking rod resetting position, and when the limiting block 7 is in the limiting block resetting position, the abutting against the locking rod 5 is removed;
when the door is closed, the rotating piece 2 is driven by the door hook 1, the rotating piece reset position is rotated to the rotating piece locking position, the combining part 4 follows the rotating piece 2 to be combined with the door hook 1, meanwhile, the first biasing piece 6 drives the locking rod 5 to move to the locking rod locking position, the locking rod 5 locks the rotating piece 2 under the action of the limiting block 7 when moving to the limiting block locking position, as shown in fig. 12 and 13, when the door is opened, the limiting block 7 moves to the limiting block reset position, the locking of the locking rod 5 is released, the locking of the rotating piece 2 is released, after the door hook 1 is pulled out under the action of external force, the rotating piece 2 rotates to the rotating piece reset position under the action of the door hook 1, and the reset mechanism is used for enabling the rotating piece 2 to be kept at the rotating piece reset position under the action of the first biasing piece 6 While keeping the locking lever 5 in the locking lever reset position. The rotating piece is locked by the lock catch and the lock catch limiting structure which are matched with each other, so that the door cover cannot be opened when the washing machine works; the lock catch only comprises a locking rod and a first biasing part, the first biasing part drives the locking rod to rotate to block the rotating part, then the rotating part is locked through the lock catch limiting structure, the locking rod directly locks the rotating part through a lever principle, complex transmission parts in the prior art are not needed, the locking force can be effectively improved through the lever principle, the transmission efficiency is improved, and the loss of the locking force in the transmission process is avoided.
As shown in fig. 5, in this embodiment, in order to enable the lock catch limiting structure to transmit a larger locking force with a smaller driving force, the locking force to the rotating member is increased, the locking capability of the washing machine door lock is increased, and the opening of the washing machine door is avoided. The rotating shaft is arranged on one side of the locking rod 5 close to the rotating part 2 and is rotatably arranged in a groove in the lock shell. Through setting up the axis of rotation in the locking lever one side that is close to the rotation piece to make the locking lever be greater than the arm of force that is close to rotation piece one side near the arm of force of hasp limit structure one side, make hasp limit structure can use the bigger locking power of less drive power transmission, improve the locking power to the rotation piece, improve the locking ability of washing machine lock, avoid opening beyond the washing machine door.
It will be appreciated that the turning shaft is arranged in the middle of the locking lever 5 on the side of the turning element 2, which is rotatably arranged in a recess in the lock housing. The lock catch limiting structure can transmit larger locking force by using smaller driving force, so that the locking force of a rotating part is improved, the locking capacity of the washing machine door lock is improved, and the washing machine door is prevented from being opened beyond a door.
As shown in fig. 11, in the present embodiment, in order to avoid the locking lever from rotating excessively, the use reliability of the washing machine door lock is effectively improved, and the locking lever is ensured to effectively transmit the locking force. A first limiting groove 23 for limiting the reset position or the locking position of the locking rod 5 is arranged in the inner cavity of the lock shell.
As shown in fig. 11, in the present embodiment, the stopper driving structure includes a driving slider 10 having a slider guide groove 9, and the driving slider 10 is driven by a driving assembly 11 to move back and forth, so that the stopper 7 is driven by the slider guide groove 9 to move to the stopper locking position to block the locking lever 5, or to retract to the stopper returning position to cancel the blocking of the locking lever 5. The driving assembly drives the sliding block to move back and forth, and then the sliding block guide groove on the driving sliding block drives the limiting block to extend out to block the lock catch or retract to cancel the blocking of the lock catch, so that the locking rod is released or blocked, and the driving mechanism has the advantage of simple and reliable driving structure.
As shown in fig. 6, the slider guide groove 9 includes a first inclined surface 901 and a second inclined surface 902 which are oppositely disposed, and the distribution directions of the first inclined surface 901 and the second inclined surface 902 are parallel to the moving direction of the stopper 7;
a stopper cylinder, which is arranged on the stopper 7, inserted into the slider guide groove 9, and located between the first inclined surface 901 and the second inclined surface 902;
when the driving slider 10 moves towards the direction far away from the driving assembly 11, the second inclined plane 902 pushes the stopper cylinder, so that the stopper 7 moves towards the stopper locking position:
when the driving slider 10 moves towards a direction close to one side of the driving assembly 11, the first inclined surface 901 pushes the stopper cylinder to push the stopper 7 to move towards the stopper reset position. The structure has the advantage of simple and reliable transmission structure.
As shown in fig. 12 and 14, in the present embodiment, the door lock device of the washing machine further includes a washing machine control device for controlling the start or stop of the washing machine, the washing machine control device includes a movable insertion piece 12 and a stationary insertion piece 13 for controlling the connection or disconnection of a power line, and a circuit linkage component 14 disposed on the driving slider 10, the driving slider 10 moves toward a direction close to one side of the driving component 11, and the movable insertion piece 12 is driven to be separated from the stationary insertion piece 13 by the circuit linkage component 14 to control the disconnection of the power line; the drive slider 10 moves towards the direction of keeping away from drive assembly 11 one side, circuit linkage part 14 keeps away from move inserted sheet 12, move inserted sheet 12 receive self elastic action with quiet inserted sheet 13 is laminated mutually, controls power supply line intercommunication. The circuit linkage component is arranged on the driving sliding block and controls the washing machine to start or stop by controlling the connection or disconnection of the movable insertion piece and the static insertion piece, so that the safety of the washing machine is effectively improved, the locking key of the washing machine is guaranteed not to be pressed, the washing machine cannot be started when the limiting block driving structure does not extend out to limit the locking rod, and the washing machine cannot be started when the door lock device of the washing machine is not in a locking state, so that the washing machine cannot open the door in a working state.
As shown in fig. 7 and 8, the door lock device of the washing machine in this embodiment further includes an energization protection component linked with the door hook 1 for ensuring that the washing machine cannot be started when the door hook 1 is not inserted into the lock hole or inserted in place.
The power-on protection component comprises a poke rod 15 arranged corresponding to the movable insertion sheet 12 and a transmission rod 16 arranged in linkage with the door hook 1 and the poke rod 15 respectively;
the poking rod 15 rotates to be arranged in the lock shell, and one end of the poking rod close to the movable inserting piece 12 is provided with a first protruding end used for poking the movable inserting piece 12 and the static inserting piece 13, the other end of the movable inserting piece is connected with a linkage clamping hook at the end part of the transmission rod 16 through a second protruding end, a third biasing part 17 is arranged on the transmission rod 16, the third biasing part 17 is a spring, one end of the third biasing part is connected with the transmission rod 16, and the other end of the third biasing part is connected with the lock shell. Third biasing member 17 to the transfer line 16 exerts the orientation the biasing force of door hook 1 direction makes the transfer line 16 with door hook 1 cooperation links to each other, transfer line 16 is inserting the lockhole keep away from under the drive of door hook 1 the direction of door hook removes, thereby the drive the poke rod 15 rotates to move apart and moves away from to move inserted sheet 12 with the stopping of quiet inserted sheet 13, circuit linkage part 14 still is in this moment move between inserted sheet 12 and quiet inserted sheet 13, control the power supply circuit cuts off, door hook 1 is deviate from during the lockhole, transfer line 16 is in under the effect of third biasing member 17, drive poke rod 15 rotates thereby to promote move inserted sheet 12 and keep away from quiet inserted sheet 13, stop move inserted sheet 12 reset with quiet inserted sheet 13 laminating. The transmission rod is driven by the insertion or extraction of the door hook, so that the connection or disconnection of the movable insertion piece and the static insertion piece is controlled, the washing machine cannot be started when the door of the washing machine is not closed, and the use safety of the washing machine is improved.
As shown in fig. 9 and 10, in order to maintain the rotor at the rotor locking position so that the locker locks the rotor in the present embodiment, the door lock device for the washing machine further includes a rotor position limiting structure which is linked with the rotor 2 and maintains the rotor 2 at the rotor locking position so that the locker locks the rotor 2;
the rotating part limiting structure comprises a locking block 18 and an unlocking slide block 19 which is arranged corresponding to the locking block 18; the locking block 18 is provided with a clamping structure 20 which is matched and connected with the rotating piece 2, the locking block 18 is provided with a locking block resetting position corresponding to the rotating piece resetting position and a locking block limiting position corresponding to the rotating piece locking position so as to keep the rotating piece 2 at the rotating piece locking position, and the unlocking slide block 19 is used for triggering the locking block 18 to slide to the locking block resetting position and cancelling the limiting of the rotating piece 2;
the lock block 18 is provided with a fourth biasing member 21, and the fourth biasing member 21 is a spring having one end connected to the lock block 18 and the other end connected to the lock case. The fourth biasing member 21 applies thereto a biasing force sliding toward the lock piece returning position;
when the door hook 1 is inserted into the rotating piece 2 to be matched and connected, the rotating piece 2 drives the locking block 18 to slide to the limiting position of the locking block, and the locking block are connected in a clamping mode through the clamping structure 20; when the washing machine door panel is pressed or the washing machine inner drum is beaten from the inside to drive the washing machine door panel to be pushed outwards, the rotating piece 2 and the locking piece 18 are forced to be separated, and the locking piece 18 is driven to enter a locking piece reset position under the biasing force of the fourth biasing piece 21. The rotating part limiting structure is simple and reliable in structure, and can effectively keep the rotating part at the rotating part locking position, so that the lock catch locks the rotating part.
As shown in fig. 11, in the present embodiment, a guiding structure 22 for guiding the lock block 18 to slide between the lock block limiting position and the lock block resetting position is disposed between the lock housing and the lock block 18, and the guiding structure 22 is a guiding groove. Through set up the guide way in the lock shell, the guide locking piece slides towards limit position or reset position to the use reliability of effectual improvement washing machine lock guarantees that the locking piece is spacing or removes spacingly to the rotation piece.
In the embodiment, in order to simply and reliably drive the unlocking slider 19 to unlock the locking piece 18, the unlocking slider 19 is in transmission connection with the driving slider 10, when the driving slider 10 drives the locking piece 18 to move to the limiting piece reset position, the unlocking slider 19 pushes the locking piece 18 to move, the locking piece 18 is separated from the rotating piece 2 under the force, and the locking piece 18 enters the locking piece reset position under the driving of the biasing force of the fourth biasing member 21.
As shown in fig. 13 and 15, in order to achieve the unlocking function, the unlocking slider can be driven, and the unlocking slider cannot be driven when the driving slider extends out, so that the problem that the unlocking slider unlocks the locking block is solved. A telescopic push rod 24 arranged towards the surface of the unlocking slide block 19 is arranged on the driving slide block 10, a step 25 arranged corresponding to the telescopic push rod 24 is arranged on the unlocking slide block 19, and the step 25 comprises a step upper section, a step lower section and an inclined surface 26 for transiting the step upper section and the step lower section;
when the driving slider 10 drives the limiting block 7 to move to the limiting block locking position, the driving slider 10 drives the telescopic push rod 24 to move from the upper step section to the lower step section, and the telescopic push rod 24 extends out to be attached to the inclined surface 26; when the driving slider 10 drives the stopper 7 to move to the stopper return position, the telescopic push rod 24 pushes the unlocking slider 19 to move toward the locking piece 18 along the inclined surface 26, so as to push the locking piece 18 to separate from the rotating member 2, and the locking piece 18 enters the locking piece return position under the driving of the biasing force of the fourth biasing member 21.
The telescopic push rod 24 includes a cap body having a hollow inner cavity, and a fifth biasing member provided in the cap body, by which the cap body and the driving slider 10 are connected, the fifth biasing member applying a biasing force to the cap body in a direction toward the unlocking slider 19. Through the telescopic push rod arranged on the driving slide block, the unlocking slide block and the step on the unlocking slide block are mutually clamped or separated, so that the driving slide block drives the unlocking slide block to push the locking block, the rotating part is limited or limited in releasing, the unlocking slide block is pushed when the telescopic push rod extends out, the association with the unlocking slide block is cancelled during contraction, the transmission structure is simple and reliable, the unlocking function of driving the unlocking slide block can be achieved, the unlocking slide block cannot be driven when the driving slide block extends out, and the unlocking slide block is prevented from unlocking the locking block.
Wherein, the driving assembly 11 is an electromagnetic driving member, which includes:
an electromagnetic coil;
an iron core disposed inside the electromagnetic coil;
the driving slider 10 is connected with the iron core and can be driven by the iron core to reciprocate along the direction perpendicular to the movement direction of the unlocking slider 19, so as to drive the unlocking slider 19 to move.
The door lock device of the washing machine further includes an emergency unlocking device for opening the door of the washing machine in an emergency.
The linkage process of the washing machine door lock of the embodiment when in specific use is as follows:
as shown in fig. 12, fig. 13 and fig. 7, when the washing machine is required to be used for washing clothes, firstly, the washing machine door is closed, at this time, the door hook 1 installed on the washing machine door is inserted into the lock hole of the lock body, the door hook 1 pushes the rotating member 2 to rotate to the rotating member locking position, and the rotating member 2 rotates, so that the second biasing member 8 is in a power accumulation state; the locking piece 18 moves towards the rotating piece 2 under the pushing of the fourth biasing piece 21 and is mutually clamped with the rotating piece 2 through the clamping structure 20, so that the limiting effect on the rotating piece 2 is achieved; at the same time, the lock lever 5 moves downward of the turning piece 2 by the first biasing member 6, blocks the turning piece 2 from turning toward the door hook 1, and prevents it from moving toward the turning piece returning position by the second biasing member 8. While the door hook 1 is inserted into the lock hole, the door hook 1 pushes the transmission lever 16 to move in a direction away from the side of the door hook 1, and the third biasing member 17 stores energy during the process of moving the transmission lever 16 away. And the driving rod 16 drives the poke rod 15 to rotate, so that the poke rod 15 does not block the movable insertion piece 12 and the static insertion piece 13 from being attached to each other, and at the moment, a circuit linkage part 14 is arranged between the movable insertion piece 12 and the static insertion piece 13, and the circuit linkage part 14 blocks the movable insertion piece 12 and the static insertion piece 13 from being attached to each other, so that the washing machine is still in an un-started state.
As shown in fig. 2 to 5, and fig. 14 and 15, when the washing machine is started by turning on the power supply, the driving assembly 11 is powered on to push the driving slider 10 to move towards the side away from the driving assembly 11, the circuit linkage member 14 disposed on the driving slider 10 is driven by the driving slider 10 to also move towards the side away from the driving assembly 11, so that the circuit linkage member 14 is no longer blocked between the movable insertion piece 12 and the static insertion piece 13, and the movable insertion piece 12 can move towards the static insertion piece 13 under the action of its own elastic force and is attached to the static insertion piece 13, thereby starting the washing machine. At the same time, the stopper 7 provided on the driving slider 10 moves from the high groove section to the low groove section via the inclined groove section, thereby blocking the locking lever 5 and restricting the rotation thereof, so that the locking lever 5 maintains the locking action on the rotating member 2. Meanwhile, the telescopic push rod 24 arranged on the driving slider 10 is driven by the driving slider 10 to move from the upper step section to the lower step section of the step 25 of the unlocking slider 19, and is attached to the lower part of the inclined surface 26 at the edge of the step 25.
As shown in fig. 10, when the power supply is turned off after the washing operation is finished, the driving assembly 11 loses power to pull the driving slider 10 to move towards the side close to the driving assembly 11, the circuit linkage component 14 arranged on the driving slider 10 is driven by the driving slider 10 to also move towards the side close to the driving assembly 11, so that the circuit linkage component 14 is blocked between the movable insertion piece 12 and the static insertion piece 13 to block the movable insertion piece 12 and the static insertion piece 13 from being attached to each other, at this time, the working circuit of the washing machine is turned off, and the washing machine stops working. Meanwhile, the telescopic push rod 24 arranged on the driving slide block 10 pushes the unlocking slide block 19 to move towards the locking block 18 along the inclined surface 26 on the unlocking slide block 19 under the driving of the driving slide block 10, the locking block 18 is pushed to separate the clamping structure 20 connecting the locking block 18 and the rotating piece 2, the locking block 18 is far away from the rotating piece 2 under the action of the biasing force of the fourth biasing element 21, and the limiting effect of the locking block 18 on the rotating piece 2 is cancelled. Meanwhile, the limiting block 7 arranged on the driving slider 10 moves the high groove section from the low groove section through the chute section, so that the locking rod 5 is not blocked any more to cancel the limiting effect on the high groove section, the rotating part 2 rotates towards the door hook 1 under the action of the second biasing part 8, the locking rod 5 is pushed to rotate against the biasing force of the first biasing part 6 to cancel the limiting effect on the rotating part 2, and the door hook 1 is pushed to pop out of the lock body.
After the door plate of the washing machine is closed and is not started, when the door of the washing machine needs to be opened, the door hook 1 slightly presses the door of the washing machine, the rotating piece 2 can be pushed by the door hook 1 again, the rotating piece 2 is enabled to turn upwards again and rotate towards the door hook 1, at the moment, the rotating piece 2 pushes the locking piece 18 to enable the clamping structure 20 connecting the locking piece 18 and the rotating piece 2 to be separated, the locking piece 18 is far away from the rotating piece 2 under the action of the biasing force of the fourth biasing piece 21, and the limiting effect of the locking piece 18 on the rotating. The turn piece 2 is rotated towards the door hook 1 by the second biasing member 8, and pushes the locking lever 5 to rotate away from the locking position of the locking lever 5 against the biasing force of the first biasing member 6, so that the limit action on the turn piece 2 is cancelled, and the door hook 1 is pushed to pop out of the lock body. The door hook 1 is automatically ejected under the action of the second biasing part 8, and then the door panel of the washing machine is automatically ejected, and the door of the washing machine is opened.
After the door plate of the washing machine is closed and is not started, the child lock function can be realized, namely, the door is opened inwards, and after the door plate of the washing machine is closed, the door plate of the washing machine can be pushed inwards by applying a certain force towards the inner cylinder of the washing machine to open the door of the washing machine. After the washing machine door is closed, a certain force is pushed inwards from the inside to the washing machine inner barrel, the generated thrust forces the door hook 1 to be pulled outwards, the door hook 1 drives the rotating piece 2 to turn downwards, at the moment, the rotating piece 2 pushes the locking piece 18 to separate the clamping structure 20 connecting the locking piece 18 and the rotating piece 2, the locking piece 18 is far away from the rotating piece 2 under the action of the biasing force of the fourth biasing piece 21, and the limiting effect of the locking piece 18 on the rotating piece 2 is cancelled. The turn piece 2 is rotated in the direction towards the door hook 1 by the second biasing member 8 and pushes the locking lever 5 to rotate out of its locking position against the biasing force of the first biasing member 6, canceling the restraining effect on the turn piece 2 and pushing the door hook 1 to pop out of the lock body. The door hook 1 is automatically ejected under the action of the second biasing part 8, and then the door panel of the washing machine is automatically ejected, and the door of the washing machine is opened.
When the washing machine works normally and the door of the washing machine needs to be opened forcibly, the handle on the door lock mounting base can be pulled, the contact on the handle pushes the peach core sliding block 10, so that the peach core sliding block 10 moves downwards to a specified position, meanwhile, the limiting surface on the handle is contacted with the mounting seat surface, so that the handle cannot be pulled downwards, the limiting block 7 resets, the door plate is opened by lightly pressing, and the door plate automatically pops open. After the handle of the mounting base is pulled to unlock, the handle is pulled again, the handle contact can run along the inclined plane in the mounting base and does not touch the peach-heart sliding block 10 any more, and the door lock can not be locked by pulling the handle again.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (21)

1. A washing machine door lock comprises
A door hook (1) adapted to be mounted on a washing machine door;
the lock shell is arranged on the washing machine body, corresponds to the door hook (1), and is provided with a lock hole for inserting the door hook (1);
the rotating piece (2) is rotatably arranged in the lock shell through a connecting shaft (3), a combining part (4) which is matched and connected with the door hook (1) is arranged on the rotating piece (2), and the rotating piece (2) is provided with a rotating piece resetting position at which the door hook (1) is not inserted into the lock hole and a rotating piece locking position at which the door hook (1) is inserted into the lock hole;
the lock catch locks the rotating piece (2) at the rotating piece locking position when the washing machine works, and releases the locking of the rotating piece (2) when the washing machine does not work;
the method is characterized in that: the lock catch comprises
A locking lever (5) rotatably provided in the housing around a rotation axis between a locking lever locking position and a locking lever returning position, wherein the rotation member is prevented from rotating in a direction of the rotation member returning position by abutting against the rotation member in the rotation member locking position when the locking lever (5) is in the locking lever locking position, and the abutment against the rotation member (2) in the rotation member locking position is released when the locking lever (5) is in the locking lever returning position;
a first biasing member (6) which applies a biasing force to the locking lever (5) to rotate toward the rotor (2) to rotate the locking lever (5) from the locking lever reset position to the locking lever locking position, and a reset mechanism for holding the rotor (2) in the rotor reset position against the urging force of the locking lever (5) is further provided to the washing machine door lock;
the lock catch limiting structure comprises a limiting block (7) movably arranged in the lock shell and a limiting block driving structure for driving the limiting block (7) to move between a limiting block locking position and a limiting block resetting position, when the limiting block (7) is located at the limiting block locking position, the limiting block abuts against the locking rod (5) located at the locking rod locking position, the locking rod (5) is prevented from rotating towards the locking rod resetting position, and when the limiting block (7) is located at the limiting block resetting position, the abutting against the locking rod (5) is removed;
when the door is closed, the rotating part (2) is driven by the door hook (1) and rotates to the rotating part locking position from the rotating part resetting position, the combining part (4) rotates to be combined with the door hook (1) along with the rotating part (2), meanwhile, the first biasing part (6) drives the locking rod (5) to move to the locking rod locking position, when the locking rod (5) moves to the limiting block locking position, the rotating part (2) is locked under the action of the limiting block (7), when the door is opened, the limiting block (7) moves to the limiting block resetting position, the locking rod (5) is unlocked, the rotating part (2) is unlocked, after the door hook (1) is pulled out under the action of external force, the rotating part (2) rotates to the rotating part resetting position under the action of the door hook (1), the return mechanism is for holding the turning piece (2) in the turning piece return position against the biasing force of the first biasing member (6) while holding the lock lever (5) in the lock lever return position.
2. A washing machine door lock device according to claim 1, wherein: the rotating shaft is arranged in the middle of the locking rod (5) or on one side close to the rotating part (2) and is rotatably arranged in a groove in the lock shell.
3. A washing machine door lock device according to claim 1 or 2, wherein: the first biasing member (6) is a spring having one end connected to the locking lever (5) and the other end connected to the housing.
4. A washing machine door lock device according to claim 1, wherein: and a first limiting groove (23) used for limiting the reset position or the locking position of the locking rod (5) is arranged in the inner cavity of the lock shell.
5. A washing machine door lock device according to claim 1, wherein: the reset mechanism is a second biasing member (8) which drives the rotating member (2) to overcome the biasing force of the first biasing member (6), rotate to the rotating member reset position and push the washing machine door provided with the door hook (1) to bounce open.
6. The washing machine door lock device according to claim 5, wherein: the second biasing part (8) is a torsion spring, is sleeved on the connecting shaft (3), and has one end fixedly connected with the rotating part (2) and the other end fixedly connected with the lock shell.
7. A washing machine door lock device according to claim 1, wherein: the limiting block driving structure comprises a driving sliding block (10) provided with a sliding block guide groove (9), the driving sliding block (10) moves back and forth under the driving of a driving assembly (11), so that the limiting block (7) is driven to move to a limiting block locking position to block the locking rod (5) through the sliding block guide groove (9), or the limiting block is retracted to a limiting block resetting position to cancel the blocking of the locking rod (5).
8. The washing machine door lock device according to claim 7, wherein: the sliding block guide groove (9) comprises a first inclined surface (901) and a second inclined surface (902) which are oppositely arranged, and the distribution directions of the first inclined surface (901) and the second inclined surface (902) are parallel to the moving direction of the limiting block (7);
the limiting block cylinder is arranged on the limiting block (7), inserted into the sliding block guide groove (9) and positioned between the first inclined surface (901) and the second inclined surface (902);
when the driving slider (10) moves towards the direction far away from one side of the driving assembly (11), the second inclined plane (902) pushes the limiting block cylinder to enable the limiting block (7) to move towards the limiting block locking position:
when the driving sliding block (10) moves towards the direction close to one side of the driving assembly (11), the first inclined surface (901) pushes the limiting block cylinder to push the limiting block (7) to move towards the limiting block reset position.
9. The washing machine door lock device according to claim 8, wherein: the washing machine control device comprises a movable insertion piece (12) and a static insertion piece (13) which are used for controlling the connection or disconnection of a power supply line, and a circuit linkage component (14) arranged on the driving slider (10), wherein the driving slider (10) moves towards the direction close to one side of the driving component (11), the movable insertion piece (12) and the static insertion piece (13) are driven to be separated through the circuit linkage component (14), and the power supply line is controlled to be disconnected; drive slider (10) orientation is kept away from the direction motion of drive assembly (11) one side, circuit linkage part (14) are kept away from move inserted sheet (12), move inserted sheet (12) receive self elastic action with quiet inserted sheet (13) are laminated mutually, control power supply line intercommunication.
10. A washing machine door lock device according to claim 9, wherein: the washing machine is characterized by further comprising a power-on protection component which is linked with the door hook (1) and used for ensuring that the washing machine cannot be started when the door hook (1) is not inserted into a lock hole or is not inserted in place.
11. A door lock device for a washing machine according to claim 10, wherein: the power-on protection component comprises a poke rod (15) arranged corresponding to the movable insertion piece (12) and a transmission rod (16) respectively linked with the door hook (1) and the poke rod (15);
the poking rod (15) is rotatably arranged in the lock shell, one end of the poking rod close to the poking insertion piece (12) is provided with a first protruding end used for poking the poking insertion piece (12) to enable the poking insertion piece to be separated from the static insertion piece (13), the other end of the poking rod is connected with a linkage hook at the end part of the transmission rod (16) through a second protruding end, a third biasing part (17) is arranged on the transmission rod (16), the third biasing part (17) applies a biasing force towards the direction of the door hook (1) to the transmission rod (16) to enable the transmission rod (16) to be connected with the door hook (1) in a matching way, the transmission rod (16) is inserted into the lock hole, the driving direction of the door hook (1) is far away from, so that the poking rod (15) is rotatably moved away from the blocking of the poking insertion piece (12) and the static insertion piece (13), circuit linkage part (14) still are in this moment move inserted sheet (12) with between quiet inserted sheet (13), control power supply line cuts off, door hook (1) is deviate from during the lockhole, transfer line (16) are in under the effect of third biasing part (17), drive pole (15) rotate thereby promote move inserted sheet (12) and keep away from quiet inserted sheet (13), block move inserted sheet (12) reset with quiet inserted sheet (13) laminating.
12. A door lock device for a washing machine according to claim 11, wherein: the third biasing member (17) is a spring having one end connected to the actuator rod (16) and the other end connected to the housing.
13. The washing machine door lock device according to claim 7, wherein: still including rotating a limit structure, rotate a limit structure with rotate a (2) linkage, be used for with rotate a (2) and keep rotating a latched position, thereby make the hasp locking rotate a (2).
14. A washing machine door lock device according to claim 13, wherein: the rotating part limiting structure comprises a locking block (18) and an unlocking sliding block (19) which is arranged corresponding to the locking block (18); the locking block (18) is provided with a clamping structure (20) which is connected with the rotating part (2) in a matched mode, the locking block (18) is provided with a locking block reset position corresponding to the rotating part reset position and a locking block limiting position corresponding to the rotating part locking position so that the rotating part (2) is kept at the rotating part locking position, and the unlocking sliding block (19) is used for triggering the locking block (18) to slide to the locking block reset position to cancel limiting of the rotating part (2);
the locking piece (18) is provided with a fourth biasing member (21), and the fourth biasing member (21) applies a biasing force sliding towards the locking piece reset position;
when the door hook (1) is inserted into the rotating piece (2) to be matched and connected, the rotating piece (2) drives the locking block (18) to slide to the limiting position of the locking block, and the locking block (18) is connected with the rotating piece (2) in a clamping mode through the clamping structure (20); when the door panel of the washing machine is pressed or the inner drum of the washing machine is beaten from the inside so as to drive the door panel of the washing machine to be pushed outwards, the rotating piece (2) and the locking piece (18) are forced to be separated, and the locking piece (18) is driven to enter a locking piece reset position under the biasing force of the fourth biasing piece (21).
15. The washing machine door lock device according to claim 14, wherein: a guide structure (22) used for guiding the lock block (18) to slide between the lock block limiting position and the lock block resetting position is arranged between the lock shell and the lock block (18).
16. The door lock device for a washing machine according to claim 14 or 15, wherein: the fourth biasing member (21) is a spring having one end connected to the lock block (18) and the other end connected to the housing.
17. The washing machine door lock device according to claim 14, wherein: the unlocking slide block (19) is in transmission connection with the driving slide block (10), when the driving slide block (10) drives the locking block (18) to move to the limiting block reset position, the unlocking slide block (19) pushes the locking block (18) to move, the locking block (18) is separated from the rotating piece (2) under the force of the force, and the locking block (18) enters the locking block reset position under the driving of the biasing force of the fourth biasing piece (21).
18. A washing machine door lock device according to claim 17, wherein: a telescopic push rod (24) arranged towards the surface of the unlocking slide block (19) is arranged on the driving slide block (10), a step (25) arranged corresponding to the telescopic push rod (24) is arranged on the unlocking slide block (19), and the step (25) comprises an upper step section, a lower step section and an inclined surface (26) for transiting the telescopic push rod (24) and the step (25);
when the driving slide block (10) drives the limiting block (7) to move to the limiting block locking position, the driving slide block (10) drives the telescopic push rod (24) to move from the upper step section to the lower step section, and the telescopic push rod (24) extends out to be attached to the inclined surface (26); when the driving slider (10) drives the limit block (7) to move to the limit block reset position, the telescopic push rod (24) pushes the unlocking slider (19) to move towards the lock block (18) along the inclined surface (26), so that the lock block (18) is pushed to be separated from the rotating piece (2), and the lock block (18) enters the lock block reset position under the driving of the biasing force of the fourth biasing member (21).
19. A washing machine door lock device according to claim 18, wherein: the telescopic push rod (24) comprises a cap body with a hollow inner cavity, and a fifth biasing member arranged in the cap body, wherein the cap body and the driving slide block (10) are connected through the fifth biasing member, and the fifth biasing member applies a biasing force to the cap body towards the unlocking slide block (19).
20. The washing machine door lock device according to claim 14, wherein: the drive assembly (11) is an electromagnetic drive comprising:
an electromagnetic coil;
an iron core disposed inside the electromagnetic coil;
the driving sliding block (10) is connected with the iron core and can be driven by the iron core to reciprocate along the direction perpendicular to the movement direction of the unlocking sliding block (19), so that the unlocking sliding block (19) is driven to move.
21. A washing machine door lock device according to claim 1, wherein: an emergency unlocking device for opening the door of the washing machine in case of emergency is also included.
CN201711261084.4A 2017-12-04 2017-12-04 Washing machine door lock Active CN107904866B (en)

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Publication number Priority date Publication date Assignee Title
CN109162068B (en) * 2018-09-21 2020-11-17 温州天健电器有限公司 Door lock for washing machine
CN109236063B (en) * 2018-10-29 2020-06-12 温州天健电器有限公司 Door lock structure and electrical equipment
CN110079978B (en) * 2019-06-11 2021-03-26 温州天健电器有限公司 Cam assembly of pressing type door lock, pressing type door lock and washing machine
CN115247349B (en) * 2021-04-27 2024-01-26 青岛海尔洗衣机有限公司 Door lock module of washing machine
CN114182494B (en) * 2022-01-05 2024-01-26 温州天健电器有限公司 Double-coil automatic door lock and washing machine with same

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KR101104644B1 (en) * 2009-03-19 2012-02-08 풍원공업 주식회사 Door safety locking apparatus
CN203271294U (en) * 2013-06-07 2013-11-06 廖衡生 High-strength mechanical door lock
CN104805644B (en) * 2014-01-26 2018-04-24 温州天健电器有限公司 A kind of door lock of washing machine
CN203782428U (en) * 2014-01-26 2014-08-20 温州天健电器有限公司 Door lock for washing machine
CN104032541B (en) * 2014-06-23 2016-01-20 温州天健电器有限公司 A kind of door lock of washing machine
CN107245845B (en) * 2017-08-10 2019-02-12 温州天健电器有限公司 A kind of door lock of washing machine

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