CN110094116B - Door lock structure of household appliance - Google Patents

Door lock structure of household appliance Download PDF

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Publication number
CN110094116B
CN110094116B CN201810094281.XA CN201810094281A CN110094116B CN 110094116 B CN110094116 B CN 110094116B CN 201810094281 A CN201810094281 A CN 201810094281A CN 110094116 B CN110094116 B CN 110094116B
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CN
China
Prior art keywords
roller
elastic piece
hook
locking
base
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Active
Application number
CN201810094281.XA
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Chinese (zh)
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CN110094116A (en
Inventor
杨均
王黎喆
曹骥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Application filed by Ningbo Fotile Kitchen Ware Co Ltd filed Critical Ningbo Fotile Kitchen Ware Co Ltd
Priority to CN201810094281.XA priority Critical patent/CN110094116B/en
Publication of CN110094116A publication Critical patent/CN110094116A/en
Application granted granted Critical
Publication of CN110094116B publication Critical patent/CN110094116B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00Accessories in connection with locks
    • E05B17/22Means for operating or controlling lock or fastening device accessories, i.e. other than the fastening members, e.g. switches, indicators
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00Locks or fastenings for special use

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  • Patch Boards (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The invention relates to a door lock structure of a household appliance, which comprises a lock rod, wherein a first end is provided with a mounting part which can be mounted on a door body of the household appliance, and a second end is provided with a lock hook; a base provided with an opening for the lock rod to pass through; the first end of the mounting bracket is hinged to the base; the first elastic piece enables the second end of the mounting bracket to always keep a trend of approaching the base; the roller is rotatably arranged on the mounting bracket, a locking opening for the locking hook to be clamped in is formed in the peripheral wall of the roller, the roller rotates to be locked when the locking hook abuts against the front side wall of the locking opening, and unlocking is realized when the roller rotates to be in a state that the front side part of the locking opening is partially withdrawn from the locking hook; the second elastic piece enables the roller to always keep the trend of the rotation of the locking port towards the direction of the base; the elastic sheet is provided with a clamping hook bent towards the direction of the roller, and the clamping hook is matched with the peripheral wall of the roller through a limiting structure so as to limit the rotating position of the roller. The invention integrates the door lock and the door control, reduces the volume of the door lock and saves the assembly space.

Description

Door lock structure of household appliance
Technical Field
The invention relates to a door lock structure of a household appliance, in particular to a mechanical door lock structure capable of effectively saving assembly space.
Background
The door lock for household appliances is a mechanism for preventing the easy door from being opened easily, so that the tightness of the electric appliance is ensured and the stability of the environment in the working cavity is maintained in a door closing state. The door locks are generally divided into mechanical type and electric type, the mechanical door locks are generally complex in structure and poor in manufacturability, and certain requirements are placed on the installation volume; the electric door lock is generally expensive in cost and poor in stability, and the door lock is easy to be locked or not closed in the using process.
Chinese patent application CN107060532a, filed with the publication number of "cooking appliance and door lock assembly thereof" (application number: CN 201710147115.7), discloses a structure, the door lock assembly of which comprises an interlocking bracket; the lock cylinder is movably arranged on the interlocking bracket between a door locking position and a release position; reset the subassembly, reset the subassembly and include: the oil cylinder is arranged on the interlocking bracket; the piston is movably arranged in the oil cylinder, a first cavity and a second cavity which are mutually communicated are defined in the oil cylinder by the piston, and the piston is connected with a piston rod which extends out of the oil cylinder and is connected with the lock cylinder; the spring is arranged in the oil cylinder and is respectively connected with the oil cylinder and the piston. According to the door lock assembly, the spring is arranged in the oil cylinder, the spring force of the spring is utilized to drive the lock cylinder to reset, and the reset speed of the lock cylinder can be adjusted by adjusting the spring force to adjust the door closing speed.
The door lock and the door control are adopted as two independent structures, so that the cost is increased, the assembly space is larger, and the whole volume and the manufacturing cost of the household motor are further affected.
Disclosure of Invention
The invention aims to solve the technical problem of providing a door lock structure of a household appliance, which integrates a door lock and a door control into a whole so as to save assembly space.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a door lock structure of domestic appliance, domestic appliance has main part and can locate the door body on this main part that opens and shuts, its characterized in that: comprising
The first end of the lock rod is provided with a mounting part which can be mounted on a door body of the household appliance, and the second end of the lock rod is provided with a lock hook;
a base provided with an opening for the lock rod to pass through;
the mounting bracket is arranged at the rear side of the base and forms a mounting space with the base, and the first end of the mounting bracket is hinged to the base;
the first elastic piece is arranged between the base and the second end of the mounting bracket and keeps the second end of the mounting bracket always towards the base;
the roller is rotatably arranged on the mounting bracket, a locking opening for the locking hook to be clamped in is formed in the peripheral wall of the roller, the roller rotates to lock when the locking hook abuts against the front side wall of the locking opening, and unlocking is realized when the roller rotates to the front side part of the locking opening to exit the locking hook;
the second elastic piece enables the roller to always keep the trend of the rotation of the locking port towards the direction of the base; and
the elastic piece is arranged at the rear side of the mounting bracket and is movably connected with the mounting bracket at the first end, the second end of the elastic piece is provided with a clamping hook bent towards the direction of the roller, and the clamping hook is mutually matched with the peripheral wall of the roller through a limiting structure so as to limit the rotating position of the roller.
In the above scheme, limit structure includes third elastic component and locates the lug on the gyro wheel peripheral wall, the lug is close to the lateral wall first end of fore shaft and is formed with the spacing draw-in groove of trip cooperation, the lug is close to the lateral wall second end of fore shaft and is formed the guide surface, the lateral wall that the fore shaft was kept away from to the lug is formed into the inclined plane that extends along gyro wheel circumference gradually from above-mentioned first end to second end, the third elastic component makes the trip of shell fragment remain all the time from above-mentioned first end to the trend that the second end removed. The structure is matched with the elastic sheet under the matching of the lock rod and the second elastic piece to realize the locking and unlocking states, and the structure is ingenious and the operation is convenient.
Preferably, a concave area extending along the circumferential direction of the roller is formed on the peripheral wall of the roller, which is close to the second end of the mounting bracket, and the concave area is communicated with the clamping groove. By adopting the structure, the clamping hook of the spring plate is easy to clamp into the clamping groove in the locking operation process.
Preferably, the clamping groove is shaped into a V shape, and the non-concave area part on the peripheral wall of the roller extends into the clamping groove and is connected with the inner side surface of the V-shaped clamping groove; the included angles between the guide surface and the outer peripheral surface of the lug and the outer peripheral wall of the roller connected with the guide surface are obtuse angles. The V-shaped clamping groove structure can improve stability of a locking state, so that the clamping hooks are prevented from sliding out of the clamping grooves, and the stability of the locking state is improved; the non-concave area part on the peripheral wall of the roller extending into the clamping groove provides conditions for the clamping hook to slide from the clamping groove to the guide surface, and when the clamping hook slides to the guide surface, the clamping hook can further slide to the surface of the convex block to abut against the second end of the inclined plane in the roller rotating state, and at the moment, the clamping hook is in an unlocking state, so that the roller is prevented from rotating excessively.
As an improvement, the rear side wall of the roller fore shaft extends outwards along the fore shaft length direction and forms an extension part with the correspondingly extending roller annular wall, wherein the length of the extension part is greater than that of the fore shaft front side wall. The structure can reduce the rotation angle of the roller when unlocking, is easy to separate the lock hook of the lock rod from the lock opening, and can unlock quickly; and the roller can be pushed upwards and backwards when the lock rod is pushed into the locking notch, so that the locking can be realized easily and quickly.
In order to be convenient for connect, first elastic component be the spring, be provided with the reference column that extends backward on the back lateral wall of base, first elastic component cover is arranged in the periphery of this reference column, first end and the base back lateral wall of first elastic component are connected, the second end of first elastic component is connected with the second end of installing support.
For ease of assembly, the first end of the base is provided with a rearwardly extending connecting arm to which the first end of the mounting bracket is hinged.
In order to facilitate assembly, a rotating shaft parallel to the rear side wall of the base is arranged in the middle of the mounting bracket, and the rotating shaft penetrates through the center of the roller to rotatably locate the roller on the mounting bracket. The second elastic piece is a torsion spring, a limiting block which is arranged close to the edge of the opening is arranged on the rear side wall of the base, a limiting groove which extends along the radial direction is arranged on the outer side face of the roller, the middle part of the torsion spring is sleeved on the periphery of the rotating shaft, the first end of the torsion spring is clamped with the limiting block, and the second end of the torsion spring is arranged in the limiting groove, so that the roller always keeps the trend of locking opening rotating towards the base.
Preferably, the third elastic element is a spring, a first hook is arranged on the side wall, close to the guide surface, of the mounting bracket, a second hook is arranged on the elastic sheet, the first end of the third elastic element is connected with the first hook, and the second end of the third elastic element is connected with the second hook.
Preferably, the first end of the mounting bracket is provided with a mounting plate extending backwards, and the first end of the elastic piece is movably connected to the mounting plate. The top of mounting panel has the inserted sheet, corresponds, have the socket that supplies the inserted sheet to pass on the shell fragment, and this socket enlarges respectively to both ends from the middle part and forms the space of stepping down that enables the trip of shell fragment and make a round trip to twist along the gyro wheel is radial. By adopting the structure, the clamping hook at the second end of the elastic sheet is easy to clamp into the clamping groove or slide onto the guide surface from the clamping groove.
Compared with the prior art, the invention has the advantages that: the lock rod of the door lock can be arranged on the back of the door body, other parts of the door lock can be embedded into the main body part of the household appliance as a whole, and in a locking state, the clamping hook of the elastic sheet is clamped in the clamping groove to prevent the roller from rotating, and the lock hook of the lock rod passes through the opening of the base and is positioned in the locking opening of the roller and is propped against the front side wall of the locking opening; when the door is unlocked, the end part of the lock rod abuts against the rear side wall of the locking opening of the roller and pushes the roller backwards, so that the elasticity of the first elastic piece is overcome, the mounting bracket and the roller rotate backwards around the first end of the mounting bracket, in the process, the roller can rotate backwards by a certain angle under the pushing of the lock rod, the elastic piece clamping hook is matched with the limiting structure to temporarily cancel the limiting of the roller, the roller rotates forwards under the action of the second elastic piece until the lock hook of the lock rod is separated from the locking opening of the roller, at the moment, the door lock is in an open state, the first elastic piece drives the roller and the mounting bracket to reset, the clamping hook on the elastic piece is matched with the limiting structure again to limit the position of the roller, and the roller is prevented from rotating excessively; when the door is locked, the door body is pushed, the lock hook enters the locking opening and further pushes the roller backwards, the roller overcomes the elasticity of the second elastic piece to rotate backwards, and when the lock hook rotating to the elastic piece is matched with the limiting structure again to limit the position of the roller, the lock hook on the lock rod abuts against the front side wall of the locking opening of the roller, so that locking is achieved. The door lock is integrated with the door control, so that the volume of the door lock is greatly reduced, the assembly space is saved, and the door lock can be locked and unlocked by pushing the door body tightly during operation, so that the door lock is convenient to use.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention (locked state);
FIG. 2 is a schematic diagram of an embodiment of the present invention (unlocked state);
FIG. 3 is a schematic view of the structure of FIG. 1 at another angle;
FIG. 4 is a schematic view of the structure of FIG. 2 at another angle;
FIG. 5 is a schematic view of the structure of FIG. 1 at another angle;
FIG. 6 is a cross-sectional view of FIG. 1;
FIG. 7 is a cross-sectional view of FIG. 2;
FIG. 8 is a schematic view of a roller structure according to an embodiment of the present invention;
FIG. 9 is a schematic view of the structure of FIG. 8 at another angle;
fig. 10 is a schematic structural view of a spring sheet according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 10, the household appliance of the present embodiment has a main body portion and a door body, the main body portion may have an inner cavity, and an edge of the door body is hinged to an opening edge of the inner cavity of the main body portion. The door lock structure of the household appliance integrates a door lock and a door control into a whole, and comprises a lock rod 1, a base 2, a mounting bracket 3, a first elastic piece 10, a roller 4, a second elastic piece 20 and a spring piece 5, wherein the lock rod 1 can be mounted on the back of a door body, the first end of the lock rod 1 is provided with a mounting part 11 which can be mounted on the door body of the household appliance, the second end of the lock rod 1 extends to the main body part of the household appliance and is provided with a lock hook 12, the base 2 and other structures form a whole, the lock rod is embedded in the main body part of the household appliance, and an opening 21 for the lock rod 1 to pass through is formed in the base 2.
The mounting bracket 3 is provided at the rear side of the base 2 and forms a mounting space 100 with the base 2, a first end of the base 2 is provided with a connecting arm 22 extending rearward, and a first end of the mounting bracket 3 is hinged to the connecting arm 22. The back side wall of the second end of the base 2 is provided with a positioning column 23 extending backwards, the first elastic piece 10 is a spring, the first elastic piece 10 is sleeved on the periphery of the positioning column 23, the first end of the first elastic piece 10 is connected with the back side wall of the base 2, and the second end of the first elastic piece 10 is connected with the second end of the mounting bracket 3, so that the second end of the mounting bracket 3 always keeps a trend of approaching to the base 2.
The roller 4 is rotatably arranged on the mounting bracket 3. Specifically, a rotating shaft 200 parallel to the rear side wall of the base 2 is arranged in the middle of the mounting bracket 3, and the rotating shaft 200 passes through the center of the roller 4 to locate the roller 4 on the mounting bracket 3. The peripheral wall of the roller 4 is provided with a locking opening 41 into which the locking hook 12 can be clamped, the roller 4 rotates until the locking hook 12 abuts against the front side wall of the locking opening 41 to realize locking, and the roller 4 rotates until the front side part of the locking opening 41 exits from the locking hook 12 to realize unlocking. The second elastic piece 20 is a torsion spring, a limiting block 24 arranged close to the edge of the opening 21 is arranged on the rear side wall of the base 2, a limiting groove 42 extending along the radial direction is arranged on the outer side face of the roller 4, the middle part of the torsion spring is sleeved on the periphery of the rotating shaft 200, the first end of the torsion spring is clamped with the limiting block 24, and the second end of the torsion spring is arranged in the limiting groove 42, so that the roller 4 always keeps the trend of rotating the locking notch 41 towards the base 2.
The elastic sheet 5 is arranged at the rear side of the mounting bracket 3, the first end of the elastic sheet 5 is movably connected to the mounting bracket 3, the second end of the elastic sheet 5 is provided with a clamping hook 51 bent towards the direction of the roller 4, and the clamping hook 51 is matched with the peripheral wall of the roller 4 through a limiting structure a so as to limit the rotating position of the roller 4. Specifically, a first end of the mounting bracket 3 is provided with a mounting plate 31 extending backward, and a first end of the elastic piece 5 is movably connected to the mounting plate 31. The top of the mounting plate 31 is provided with an inserting sheet 311, the corresponding elastic sheet 5 is provided with a socket 52 for the inserting sheet 311 to pass through, and the socket 52 is respectively expanded from the middle to two ends to form a abdication space capable of enabling the clamping hook 51 of the elastic sheet 5 to twist back and forth along the radial direction of the roller 4.
The above-mentioned limit structure a includes the third elastic member 30 and the protruding block 43 disposed on the peripheral wall of the roller 4, the first end of the protruding block 43 near the sidewall of the locking opening 41 is formed with a locking groove 431 capable of being engaged with the locking hook 51 to limit, the second end of the protruding block 43 near the sidewall of the locking opening 41 is formed with a guiding surface 432, and the sidewall of the protruding block 43 far from the locking opening 41 is formed with an inclined surface 433 extending gradually along the circumferential direction of the roller 4 from the first end to the second end. The third elastic member 30 is a spring, the side wall of the mounting bracket 3, which is close to the guide surface 432, is provided with a first hook 32, the elastic sheet 5 is provided with a second hook 53, the first end of the third elastic member 30 is connected with the first hook 32, and the second end of the third elastic member 30 is connected with the second hook 53, so that the hook 51 of the elastic sheet 5 always keeps the moving trend from the first end to the second end. The roller 4 is formed with a recessed area 44 extending along the circumferential direction of the roller 3 on the outer peripheral wall near the second end of the mounting bracket 3, and the recessed area 44 communicates with the locking groove 431. The clamping groove 431 is shaped into a V shape, and a non-concave area part on the peripheral wall of the roller 4 extends into the clamping groove 431 and is connected with the inner side surface of the V-shaped clamping groove 431; the included angles between the guide surface 432 and the outer peripheral surface of the lug 4 and the outer peripheral wall of the roller 4 connected with the guide surface are obtuse angles. The V-shaped clamping groove 431 structure can improve the stability of the locking state, prevent the clamping hook 51 from sliding out of the clamping groove 431, and improve the stability of the locking state; the non-concave portion of the outer peripheral wall of the roller 4 extending into the locking groove 431 provides a condition for the locking hook 51 to slide from the locking groove 431 to the guiding surface 432, when the locking hook 51 slides onto the guiding surface 432, the locking hook can further slide over the surface of the bump 4 to abut against the second end of the inclined surface 433 in the rotating state of the roller 4, and at this time, the locking hook is in an unlocking state to prevent the roller 4 from rotating excessively. The rear side wall of the mouth 41 of the roller 4 extends outwardly along the length of the mouth 41 and together with the correspondingly extending peripheral wall 45 of the roller 4 forms an extension 46 of greater length than the front side wall of the mouth 41. And the distance between the edge of the locking notch 41 and the edge of the lug 43 in the circumferential direction of the roller 4 is less than or equal to half of the circumference. When unlocking, the rotation angle of the roller 4 can be reduced, so that the lock hook 12 of the lock rod 1 is easily separated from the lock notch 41, and the lock is quickly unlocked; it is also possible to form upward and backward thrust to the roller 4 when the lock lever 1 is pushed into the locking notch 41, and locking is easily and quickly achieved.
With the door lock structure of the embodiment, when the door lock is in a locked state, the hook 51 of the spring 5 is clamped in the clamping groove 431 to prevent the roller 4 from rotating, and the lock hook 12 of the lock rod 1 passes through the opening 11 of the base 1 and is positioned in the locking opening 41 of the roller 4 and abuts against the front side wall of the locking opening 41; when the door body is unlocked, the end part of the lock rod 1 abuts against the rear side wall of the locking notch 41 of the roller 4 and then pushes the roller 4, so that the elasticity of the first elastic piece 10 is overcome, the mounting bracket 3 and the roller 4 rotate backwards around the first end of the mounting bracket 3, in the process, the roller 4 can rotate backwards by a certain angle under the pushing of the lock rod 1, the elastic piece 5 and the clamping hook 51 are separated from the clamping groove 431 and slide into the guide surface 432 under the action of the third elastic piece 30, the roller 4 rotates towards the direction of the base 2 under the action of the second elastic piece 20, the clamping hook 51 slides to one end of the inclined surface 433 corresponding to the guide surface 432 through the convex block 43, at this time, the locking notch 41 can be used for disengaging the locking hook 12 of the lock rod 1, the first elastic piece 10 drives the roller 4 and the mounting bracket 3 to reset, the clamping hook 51 and the inclined surface 433 are mutually limited to prevent the roller 4 from rotating excessively, and the door lock is in an open state; when the door is locked, the door body is pushed, the lock hook 12 enters the locking notch 41 and further pushes the roller 4 backwards, so that the roller 4 overcomes the elasticity of the second elastic piece 20 to rotate backwards, in the process, the clamping hook 51 on the elastic piece 5 approaches to the clamping groove 431 along the inclined surface 433 until being clamped into the clamping groove 431, the position of the roller 4 is limited, and at the moment, the angle rotated by the roller 4 enables the lock hook 12 of the lock rod 1 to be limited in the locking notch 41 of the roller 4, and locking of the door lock is realized.
It should be noted that, in this embodiment, the indication rod 6 may be further disposed in association with the roller 4, where the indication rod 6 may change in position during rotation of the roller 4, and an end of the indication rod 6 may be connected with a control system having an indication function such as sound, so as to remind a user in a door lock locking or unlocking state, so as to avoid excessive operation and influence on user experience.

Claims (9)

1. The utility model provides a door lock structure of domestic appliance, domestic appliance has main part and can locate the door body on this main part that opens and shuts, its characterized in that: comprising
A lock lever (1), wherein a first end of the lock lever (1) is provided with a mounting part (11) capable of being mounted on a door body of the household appliance, and a second end of the lock lever (1) is provided with a lock hook (12);
the base (2) is provided with an opening (21) for the lock rod (1) to pass through;
the mounting bracket (3) is arranged at the rear side of the base (2) and forms a mounting space (100) with the base (2), and a first end of the mounting bracket (3) is hinged on the base (2);
the first elastic piece (10) is arranged between the base (2) and the second end of the mounting bracket (3) and keeps the second end of the mounting bracket (3) to be close to the base (2) all the time;
the roller (4) is rotatably arranged on the mounting bracket (3), a locking opening (41) into which the locking hook (12) can be clamped is formed in the peripheral wall of the roller (4), the roller (4) rotates to lock when the locking hook (12) abuts against the front side wall of the locking opening (41), and unlocking is realized when the front side part of the locking opening (41) exits from the locking hook (12);
the second elastic piece (20) enables the roller (4) to always keep the trend of rotating the locking opening (41) towards the base (2); and
the elastic piece (5) is arranged at the rear side of the mounting bracket (3) and the first end of the elastic piece (5) is movably connected to the mounting bracket (3), the second end of the elastic piece (5) is provided with a clamping hook (51) bent towards the direction of the roller (4), and the clamping hook (51) is matched with the peripheral wall of the roller (4) through a limiting structure (a) so as to limit the rotation position of the roller (4);
the limiting structure (a) comprises a third elastic piece (30) and a protruding block (43) arranged on the peripheral wall of the roller (4), a clamping groove (431) capable of being matched with the clamping hook (51) to limit is formed at the first end of the protruding block (43) close to the side wall of the locking notch (41), a guide surface (432) is formed at the second end of the protruding block (43) close to the side wall of the locking notch (41), the side wall of the protruding block (43) far away from the locking notch (41) is formed into an inclined surface (433) gradually extending along the circumferential direction of the roller (4) from the first end to the second end, and the clamping hook (51) of the elastic piece (5) always keeps moving trend from the first end to the second end by the third elastic piece (30);
the rear side wall of the locking notch (41) of the roller (4) extends outwards along the length direction of the locking notch (41) and forms an extension part (46) with the corresponding extending roller (4) annular wall (45) and with the length longer than the front side wall of the locking notch (41); the first end of the base (2) is provided with a connecting arm (22) extending backwards, and the first end of the mounting bracket (3) is hinged on the connecting arm (22).
2. The door lock structure of a home appliance according to claim 1, wherein: the roller (4) is provided with a concave area (44) extending along the circumferential direction of the roller (4) on the peripheral wall close to the second end of the mounting bracket (3), and the concave area (44) is communicated with the clamping groove (431).
3. The door lock structure of a home appliance according to claim 2, wherein: the clamping groove (431) is shaped into a V shape, and a non-concave area part on the peripheral wall of the roller (4) extends into the clamping groove (431) and is connected with the inner side surface of the V-shaped clamping groove (431); the included angles between the guide surface (432) and the outer peripheral surface of the lug (43) and the outer peripheral wall of the roller (4) connected with the lug are obtuse angles.
4. A door lock structure for a home appliance according to any one of claims 1 to 3, wherein: the novel elastic support is characterized in that the first elastic piece (10) is a spring, a positioning column (23) extending backwards is arranged on the rear side wall of the base (2), the first elastic piece (10) is sleeved on the periphery of the positioning column (23), the first end of the first elastic piece (10) is connected with the rear side wall of the base (2), and the second end of the first elastic piece (10) is connected with the second end of the mounting support (3).
5. A door lock structure for a home appliance according to any one of claims 1 to 3, wherein: the middle part of the installing support (3) is provided with a rotating shaft (200) which is parallel to the rear side wall of the base (2), and the rotating shaft (200) penetrates through the center of the roller (4) to rotatably locate the roller (4) on the installing support (3).
6. The door lock structure of a home appliance according to claim 5, wherein: the second elastic piece (20) is a torsion spring, a limiting block (24) which is arranged close to the edge of the opening (21) is arranged on the rear side wall of the base (2), a limiting groove (42) which extends along the radial direction is arranged on the outer side face of the roller (4), the middle part of the torsion spring is sleeved on the periphery of the rotating shaft (200), the first end of the torsion spring is clamped with the limiting block (24), and the second end of the torsion spring is arranged in the limiting groove (42) so that the roller (4) always keeps the trend of locking opening (41) rotating towards the base (2).
7. A door lock structure for a home appliance according to any one of claims 1 to 3, wherein: the third elastic piece (30) is a spring, a first hook (32) is arranged on the side wall, close to the guide surface (432), of the mounting bracket (3), a second hook (53) is arranged on the elastic piece (5), the first end of the third elastic piece (30) is connected with the first hook (32), and the second end of the third elastic piece (30) is connected with the second hook (53).
8. A door lock structure for a home appliance according to any one of claims 1 to 3, wherein: the first end of the mounting bracket (3) is provided with a mounting plate (31) extending backwards, and the first end of the elastic sheet (5) is movably connected to the mounting plate (31).
9. The door lock structure of a home appliance according to claim 8, wherein: the top of mounting panel (31) has inserted sheet (311), and is corresponding, have on shell fragment (5) and supply inserting mouth (52) that inserted sheet (311) passed, and this inserting mouth (52) are expanded respectively from the middle part to both ends and are formed the space of stepping down that can make trip (51) of shell fragment (5) follow gyro wheel (4) radial round trip.
CN201810094281.XA 2018-01-31 2018-01-31 Door lock structure of household appliance Active CN110094116B (en)

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CN110094116B true CN110094116B (en) 2024-02-20

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112806937B (en) * 2019-11-15 2022-01-25 宁波方太厨具有限公司 Door lock structure and cleaning machine with same
CN112049528B (en) * 2020-09-16 2021-11-26 宁波方太厨具有限公司 Door lock, slot door body structure and cleaning machine thereof

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