CN115263097A - Door lock actuating mechanism for household appliance - Google Patents
Door lock actuating mechanism for household appliance Download PDFInfo
- Publication number
- CN115263097A CN115263097A CN202210822611.9A CN202210822611A CN115263097A CN 115263097 A CN115263097 A CN 115263097A CN 202210822611 A CN202210822611 A CN 202210822611A CN 115263097 A CN115263097 A CN 115263097A
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- Prior art keywords
- locking
- latch arm
- door lock
- locking block
- block
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- 230000007246 mechanism Effects 0.000 title claims abstract description 31
- 238000004851 dishwashing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- MTCPZNVSDFCBBE-UHFFFAOYSA-N 1,3,5-trichloro-2-(2,6-dichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=C(Cl)C=CC=C1Cl MTCPZNVSDFCBBE-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/0042—For refrigerators or cold rooms
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Washing And Drying Of Tableware (AREA)
Abstract
A door lock actuator for a household appliance includes a bottom case, a latch arm, and a locking mechanism; the latch arm is hinged to the bottom shell, and one end, used for being matched with the door catch, of the latch arm is a latch arm head end; the locking mechanism is characterized in that the other end of the latch arm is a latch arm tail end locking surface, and the locking mechanism comprises a locking block; the locking block limits the movement of the locking surface at the tail end of the latch arm, so that the locking function of the door lock is realized. The door lock actuating mechanism for the household appliance disclosed by the invention has the advantages of simple structure and strong locking force, can allow a certain position deviation to exist between the locking block and the latch arm, reduces the failure rate of the door lock, and prolongs the service life of the door lock. The door lock actuating mechanism for the household appliance can be widely applied to household appliances such as dish washing machines, refrigerators and the like.
Description
Technical Field
The invention belongs to the technical field of household appliance door locks, and particularly relates to a door lock actuating mechanism for a household appliance.
Background
In the working process of household appliances such as dish washing machines, washing machines and the like, door closing and locking are generally realized by adopting a mode of matching a door catch with a door lock. The door catch and the door lock are respectively installed on the door and the main body of the household appliance. The door lock is provided with a door hook, and in the door opening process, the door hook overcomes the elasticity applied to the door hook, so that the door hook is separated from the door buckle, and the door is opened. In the door closing process, the door hook and the door buckle move relatively, and finally the door buckle is pressed tightly under the action of elasticity, so that the door closing effect is achieved. A locking mechanism is also typically employed to achieve the locking effect.
The existing locking mechanism mostly adopts a mode that parts such as a lock pin are inserted into a lock hole to limit the position of a door hook to realize locking. Although the locking function of the door lock can be realized by adopting the lock pin or the limiting pin, the lock pin or the limiting pin occupies a large space, the situation that the lock pin and the lock hole are deviated and cannot be locked can occur in the using process, and the service life is short.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a door lock actuating mechanism for a household appliance, wherein the door lock realizes a locking function by a simple structure, avoids the situation that the locking mechanism cannot be locked due to position deviation, enhances the usability of the door lock, reduces the failure rate and prolongs the service life of the door lock.
In order to realize the purpose, the invention adopts the following technical scheme:
a door lock actuator for a household appliance includes a bottom case, a latch arm, and a locking mechanism. The latch arm is hinged on the bottom shell, one end of the latch arm, which is used for being matched with the door catch, is a head end of the latch arm, the other end of the latch arm is a tail end of the latch arm, and the locking mechanism comprises a locking block. The lock block limits the movement of the tail end of the latch arm, so that the locking function of the door lock is realized.
Furthermore, the tail end of the latch arm is provided with a locking surface, one end of the locking block is provided with a locking surface, and the locking surface is pressed to realize the locking function.
Further, the locking mechanism further comprises a first elastic element for pressing the locking surface against the locking surface.
In another improvement, the locking mechanism further comprises a driving device, and the driving device is used for driving the locking surface to press against or move away from the locking surface.
Furthermore, the locking block is installed on the bottom shell through a shaft, the shaft is parallel to the bottom surface of the bottom shell, and the driving device drives the locking block to rotate around the shaft.
In another improvement, the locking block is mounted on the bottom shell through a shaft, the shaft is perpendicular to the bottom surface of the bottom shell, the shaft is located on one side of the latch arm, and the driving device drives the locking block to rotate around the shaft.
In another improvement, the driving device drives the locking block to move along a straight line, and the moving path of the locking block is parallel to or coincident with the central axis of the latch arm.
In another improvement, the driving device drives the locking block to move along a straight line, the moving route of the locking block is perpendicular to the bottom shell or forms a certain angle with the bottom shell, and the locking block is arranged between the first latch arm and the second latch arm to limit the first latch arm and the second latch arm to move so as to realize the locking function.
Further, the latch arm comprises a first latch arm, a second latch arm and a second elastic element, the first latch arm and the second latch arm are symmetrically hinged on the bottom shell, and the head end of the first latch arm and the head end of the second latch arm are connected through the second elastic element.
Further, the locking mechanism further comprises a position switch for detecting whether the locking mechanism is in a locked state.
The door lock actuating mechanism for the household appliance disclosed by the invention has the advantages of simple structure and strong locking force, can allow a certain position deviation to exist between the locking block and the latch arm, reduces the failure rate of the door lock, and prolongs the service life of the door lock. The door lock actuating mechanism for the household appliance can be widely applied to household appliances such as dish washing machines, refrigerators and the like.
Drawings
Fig. 1 is a schematic structural diagram of a door lock actuator for a home appliance according to a first embodiment of the present invention;
FIG. 2 is a schematic illustration of a latch arm according to a first embodiment of the present invention;
FIG. 3 is a perspective view of a latch arm construction in accordance with a first embodiment of the present invention;
FIG. 4 is a front view of a locking block according to a first embodiment of the present invention;
FIG. 5 is a side view of a locking block according to a first embodiment of the present invention;
FIG. 6 is a perspective view of a locking block according to one embodiment of the present invention;
fig. 7 is a schematic structural view of a door lock actuator for a home appliance according to a second embodiment of the present invention;
FIG. 8 is a state diagram of a door lock actuator for a household appliance when the door lock is unlocked according to a first embodiment of the present invention;
FIG. 9 is a diagram illustrating a door lock actuator for a household appliance in a locked state according to an embodiment of the present invention;
fig. 10 is a state diagram of a door lock actuator for a home appliance in a state where a door lock is unlocked according to a third embodiment of the present invention;
FIG. 11 is a state diagram of a door lock actuator for a household appliance in a state where a door lock is locked according to a third embodiment of the present invention;
fig. 12 is a schematic structural view of a door lock actuator for a home appliance in the fourth embodiment of the present invention;
FIG. 13 is a schematic illustration of a latch arm construction according to a fourth embodiment of the present invention;
fig. 14 is a state diagram of a door lock actuator for a home appliance in a state where a door lock is unlocked according to the fourth embodiment of the present invention;
fig. 15 is a state diagram of a door lock actuator for a home appliance in a state where a door lock is locked according to the fourth embodiment of the present invention;
fig. 16 is a schematic structural view of a door lock actuator for a home appliance in a fifth embodiment of the present invention;
fig. 17 is a state diagram of a door lock actuator for a home appliance in a state where a door lock is unlocked according to a fifth embodiment of the present invention;
fig. 18 is a state diagram of a door lock actuator for a home appliance in a state where a door lock is locked according to a fifth embodiment of the present invention.
Detailed Description
The present invention provides a door lock actuator for a household appliance, which is described in detail below with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper", "lower", "bottom", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions and values used in the present embodiment are only for illustrating the technical solutions, and do not limit the protection scope of the present invention. The following embodiments are all exemplified by using the safety door lock of the present invention in a dishwasher, but it should be noted that the safety door lock of the present invention is not limited to be applied to a dishwasher.
Referring to fig. 1, the present invention discloses a door lock actuator for a home appliance, which includes a bottom case 101, a latch arm, and a locking mechanism. Generally, as shown in fig. 2 and 3, the latch arms include a first latch arm 105 and a second latch arm 107. The first latch arm 105 and the second latch arm 107 are symmetrically hinged on the bottom case 101, one end of the first latch arm 105 and the second latch arm 107 for cooperating with the door latch 106 is a first latch arm head end 109 and a second latch arm head end 110 respectively, the other end is a first latch arm tail end 112 and a second latch arm tail end 111 respectively, and the first latch arm head end 109 and the second latch arm head end 110 are connected through a first elastic element 108. The first elastic element 108 is typically a tension spring or a snap spring for pulling the first latch arm head 109 and the second latch arm head 110 closer or closer. Simply, by placing the locking block 102 between the first latch arm tail end 112 and the second latch arm tail end 111, the first latch arm 105 and the second latch arm 107 are limited from moving, and the first latch arm head end 109 and the second latch arm head end 110 lock the door latch 106, thereby realizing the locking function.
Preferably, the first latch arm trailing end 112 and the second latch arm trailing end 111 have a locking surface 113. As shown in fig. 1, 4, 5 and 6, the locking mechanism includes a lock block 102, the lock block 102 is mounted on the bottom case 101 through a shaft 103, and one end of the lock block 102 has a locking surface 114. The lock surface 114 is pressed against the lock surface 113, whereby the lock function of the door lock is realized. The locking surfaces 113, 114 are generally convex, although flat surfaces are also possible. When at least one of the locking surface 113 and the locking surface 114 is a convex surface, the contact position of the locking surface 113 and the locking surface 114 is flexible, even if the latch arm or the locking block is damaged or moves in the use process of the door lock, the contact mode of the locking surface and the locking surface can compensate the position deviation, and the stable locking effect is ensured.
A simpler way is to provide a mounting groove 115 in the side of the locking piece, and to mount a torsion spring in the mounting groove 115, which can press the locking surface 114 against the locking surface 113. The torsional spring can be in the automatic work of lock closed condition, need not to open the switch of locking. And in a strong state, the locked door lock can also be opened without damaging the locking mechanism.
A position switch, such as a micro switch, may be additionally provided on the PCB 104 for detecting whether the locking mechanism is in the locking state.
The position switch is arranged at the position close to the motion track of the locking block, and when the position of the locking block is changed, the position switch can be triggered/released, so that different positions of the locking block, namely the locking position and the unlocking position, can be represented through different signal states of the position switch.
Example two
As shown in fig. 7, the door lock actuator for home appliances according to the first embodiment does not use a pressing spring. The locking block 202 is mounted on the bottom case 201 through a shaft 203, and the shaft 203 is parallel to the bottom surface of the bottom case 201. The output shaft of the driving device 216 is connected to the locking block 202, and the driving device 216 drives the locking block 202 to rotate around the shaft 203.
As shown in fig. 8 and 9, after the door lock is closed, a locking signal is sent to the driving device through the locking switch, the driving device drives the locking block to rotate in the counterclockwise direction to approach the locking surface until the locking surface presses the locking surface, at this time, the first latch arm and the second latch arm are limited to move, and the door lock is locked.
In the present invention, the driving device generally employs a motor or the like, and a linear motor or a rotary motor can be selected according to the application. The locking switch may be manually operated or may be determined by the state of the appliance, for example, when a dishwashing function is initiated, the locking switch sends a locking signal to the drive device.
EXAMPLE III
Similar to the embodiment, but the direction of rotation of the locking block is changed. As shown in fig. 10 and 11, the lock block 302 is mounted on the bottom case 301 via a shaft 303, the shaft 303 being perpendicular to the bottom surface of the bottom case 301, the shaft 303 being located on the first latch arm 305 side. The latch block 302 has a length of connecting arm. The output shaft of the driving device 316 drives the locking block 302 to rotate around the shaft 303.
After the door lock is closed, a locking signal is sent to the driving device through the locking switch, the driving device drives one end, far away from the shaft, of the locking block to rotate along the anticlockwise direction, the sector which is swept through in the rotation is parallel to the bottom shell, the locking surface of the locking block is close to the locking surface until the locking surface presses the locking surface, at the moment, the first latch arm and the second latch arm are limited to move, and the door lock is locked.
Example four
Similar to the embodiment, however, the movement pattern of the lock block is changed. As shown in fig. 12 and 13, the first latch arm 405 and the second latch arm 407 are hinged to the bottom case 401 by the same mounting shaft. The actuator 416 can move the lock block 402 along a straight line, and the moving path of the lock block 402 is parallel to or coincident with the central axis of the latch arm.
As shown in fig. 14 and 15, after the door lock is closed, a locking signal is sent to the driving device through the locking switch, the driving device drives the locking block to move linearly, a plane swept by the locking block is parallel to the bottom shell, the locking block is close to the locking surface to the left until the locking surface presses the locking surface, at this time, the first latch arm and the second latch arm are limited to move, and the door lock is locked.
EXAMPLE five
Similar to the fourth embodiment, however, the moving direction of the lock block is changed. As shown in fig. 16, the locking block 502 is L-shaped when viewed from the side, the output shaft of the driving device 516 drives the locking block 502 to move up and down along a straight line, and the moving path of the locking block 502 is perpendicular to or at a certain angle with the bottom case 501.
As shown in fig. 17 and 18, when the door lock is closed, a locking signal is sent to the driving device through the locking switch, the driving device 516 drives the locking block 502 to move upwards in a straight line, the locking block 502 approaches the locking surface until the locking surface presses the locking surface, at this time, the first latch arm 505 and the second latch arm 507 are limited to move, and the door lock is locked.
Based upon the foregoing description of the preferred embodiment of the invention, it should be apparent that the invention defined by the appended claims is not limited solely to the specific details set forth in the foregoing description, as many apparent variations thereof are possible without departing from the spirit or scope thereof.
Claims (10)
1. A door lock actuator for a household appliance includes a bottom case, a latch arm, and a locking mechanism; the latch arm is hinged to the bottom shell, and one end, used for being matched with the door catch, of the latch arm is a latch arm head end; the locking mechanism is characterized in that the other end of the latch arm is a tail end of the latch arm, and the locking mechanism comprises a locking block; the lock block limits the movement of the tail end of the latch arm to realize the locking function of the door lock.
2. The door lock actuator for electric home appliances according to claim 1, wherein the latch arm has a locking surface at a rear end thereof, and the locking block has a locking surface at one end thereof, and the locking function is achieved by the locking surface pressing the locking surface.
3. The door lock actuator for electric home appliances according to claim 1, wherein the locking mechanism further comprises a first elastic member for pressing the locking surface against the locking surface.
4. The door lock actuator for electric home appliances according to claim 1, wherein the locking mechanism further comprises a driving means for driving the locking surface to press or move away from the locking surface.
5. The door lock actuator for electric home appliances according to claim 4, wherein the locking block is mounted on the bottom case through a shaft, the shaft is parallel to the bottom surface of the bottom case, and the driving means drives the locking block to rotate around the shaft.
6. The door lock actuator for electric home appliances according to claim 4, wherein the locking block is mounted on the bottom case through a shaft perpendicular to the bottom surface of the bottom case, the shaft is located at one side of the latch arm, and the driving means drives the locking block to rotate around the shaft.
7. The door lock actuator for electric home appliances according to claim 4, wherein the driving means drives the locking block to move linearly, and a moving path of the locking block is parallel to or coincident with a central axis of the latch arm.
8. The door lock actuator for electric home appliances according to claim 4, wherein the driving means drives the locking block to move in a straight line, and a moving path of the locking block is perpendicular to or at an angle with respect to the bottom case.
9. The door lock actuator for electric household appliances according to any one of claims 1 to 7, characterized in that the latch arm comprises a first latch arm, a second latch arm and a second elastic element, the first and second latch arms are symmetrically hinged on the bottom shell, the first and second latch arm head ends are connected by the second elastic element; the locking block is arranged between the first latch arm and the second latch arm to limit the first latch arm and the second latch arm to move, so that the locking function is realized.
10. The door lock actuator for electric home appliances according to any one of claims 1 to 7, wherein the locking mechanism further comprises a position switch for detecting whether the locking mechanism is in a locked state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210822611.9A CN115263097B (en) | 2022-07-13 | 2022-07-13 | Door lock actuating mechanism for household appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210822611.9A CN115263097B (en) | 2022-07-13 | 2022-07-13 | Door lock actuating mechanism for household appliances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115263097A true CN115263097A (en) | 2022-11-01 |
| CN115263097B CN115263097B (en) | 2023-11-21 |
Family
ID=83765887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210822611.9A Active CN115263097B (en) | 2022-07-13 | 2022-07-13 | Door lock actuating mechanism for household appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115263097B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19841544A1 (en) * | 1998-09-11 | 2000-03-23 | Fuhr Carl Gmbh & Co | Additional lock on an espagnolette lock |
| AU5189101A (en) * | 2000-06-13 | 2001-12-20 | Allegion (Australia) Pty Ltd | Improvements in locks |
| JP4674922B1 (en) * | 2009-12-11 | 2011-04-20 | 杭州神林電子有限公司 | Door lock device |
| CN105220966A (en) * | 2015-09-25 | 2016-01-06 | 广东格兰仕集团有限公司 | A kind of automatic door lock of dish-washing machine |
-
2022
- 2022-07-13 CN CN202210822611.9A patent/CN115263097B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19841544A1 (en) * | 1998-09-11 | 2000-03-23 | Fuhr Carl Gmbh & Co | Additional lock on an espagnolette lock |
| AU5189101A (en) * | 2000-06-13 | 2001-12-20 | Allegion (Australia) Pty Ltd | Improvements in locks |
| JP4674922B1 (en) * | 2009-12-11 | 2011-04-20 | 杭州神林電子有限公司 | Door lock device |
| CN105220966A (en) * | 2015-09-25 | 2016-01-06 | 广东格兰仕集团有限公司 | A kind of automatic door lock of dish-washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115263097B (en) | 2023-11-21 |
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