CN115263097B - Door lock actuating mechanism for household appliances - Google Patents
Door lock actuating mechanism for household appliances Download PDFInfo
- Publication number
- CN115263097B CN115263097B CN202210822611.9A CN202210822611A CN115263097B CN 115263097 B CN115263097 B CN 115263097B CN 202210822611 A CN202210822611 A CN 202210822611A CN 115263097 B CN115263097 B CN 115263097B
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- China
- Prior art keywords
- locking
- latch arm
- door lock
- locking block
- latch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007246 mechanism Effects 0.000 title claims abstract description 31
- 238000005406 washing Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000013459 approach Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004851 dishwashing 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (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 arms are hinged on the bottom shell, and one end of each latch arm, which is used for being matched with the corresponding door catch, 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; and the locking block limits the movement of the locking surface at the tail end of the latch arm to realize the locking function of the door lock. The door lock actuating mechanism for the household appliance has the advantages of simple structure and strong locking force, can allow certain position deviation 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 appliances can be widely applied to household appliances such as dish washers, 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 executing mechanism for a household appliance.
Background
In the working process of household appliances such as dish washing machines, washing machines and the like, door locking and locking are generally realized by adopting a mode of matching door buckles and door locks. The door catch and the door lock are respectively arranged on the door and the main body of the household appliance. The door lock is provided with a door hook, the elasticity born by the door hook is overcome in the door opening process, the door hook is separated from the door buckle, and the door is opened. In the closing process, the door hook and the door catch relatively move, and finally the door catch is pressed under the action of elasticity, so that the closing effect is achieved. Locking mechanisms are also commonly employed to achieve a locking effect.
The existing locking mechanism is usually inserted into a lock hole by adopting parts such as a lock pin and the like, so that locking is realized in a mode of limiting the position of a door hook. The locking function of the door lock can be realized by adopting the lock pin or the limiting pin, but the occupied space is larger, the situation that the lock pin and the lock hole cannot be locked due to position deviation possibly occurs in the use process, and the service life is shorter.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the door lock actuating mechanism for the household appliance, and the door lock realizes the locking function by a simple structure, so that the situation that the door lock cannot be locked due to the position deviation of the locking mechanism is avoided, the usability of the door lock is enhanced, the failure rate is reduced, and the service life of the door lock is prolonged.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a door lock actuator for a household appliance includes a bottom housing, 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 latch arm head end, the other end of the latch arm is a latch arm tail end, and the locking mechanism comprises a locking block. And the locking block limits the tail end of the latch arm to move, 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 by the locking surface to realize a locking function.
Further, the locking mechanism further comprises a first elastic element, wherein the elastic element is used for pressing the locking surface to the locking surface.
In another improvement, the locking mechanism further comprises a driving device, wherein the driving device is used for driving the locking surface to press or be away from the locking surface.
Further, 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.
The locking block is arranged on the bottom shell through a shaft, the shaft is perpendicular to the bottom surface of the bottom shell, the shaft is positioned 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 route of the locking block is parallel to or coincides 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 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 movement of the first latch arm and the second latch arm so as to realize the locking function.
Further, the latch arms comprise 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 first latch arm head end and the second latch arm head end are connected through the second elastic element.
Further, the locking mechanism further comprises a position switch, and the position switch is used for detecting whether the locking mechanism is in a locking state.
The door lock actuating mechanism for the household appliance has the advantages of simple structure and strong locking force, can allow certain position deviation 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 appliances can be widely applied to household appliances such as dish washers, washing machines, refrigerators and the like.
Drawings
Fig. 1 is a schematic structural view of a door lock actuator for a home appliance in accordance with a first embodiment of the present invention;
FIG. 2 is a schematic illustration of a latch arm construction according to a first embodiment of the invention;
FIG. 3 is a perspective view of a latch arm structure according to a first embodiment of the invention;
FIG. 4 is a front view of a lock block in accordance with a first embodiment of the present invention;
FIG. 5 is a side view of a lock block in accordance with a first embodiment of the present invention;
FIG. 6 is a perspective view of a lock block in accordance with a first embodiment of the present invention;
fig. 7 is a schematic structural view of a door lock actuator for a home appliance in a second embodiment of the present invention;
fig. 8 is a state diagram of a door lock actuator for a home appliance in an unlocked state of a door lock according to an embodiment of the present invention;
fig. 9 is a state diagram of a door lock actuator for a home appliance when a door lock is in a locked state in accordance with the first embodiment of the present invention;
fig. 10 is a state diagram of a door lock actuator for a home appliance in a door lock unlocked state in the third embodiment of the present invention;
fig. 11 is a state diagram of a door lock actuator for a home appliance when a door lock is in a locked state in the third embodiment of the present invention;
fig. 12 is a schematic structural view of a door lock actuator for a home appliance in a fourth embodiment of the present invention;
FIG. 13 is a schematic illustration of a latch arm construction in accordance with a fourth embodiment of the invention;
fig. 14 is a state diagram of a door lock actuator for a home appliance in a door lock unlocked state in accordance with the fourth embodiment of the present invention;
fig. 15 is a state diagram of a door lock actuator for a home appliance when the door lock is in a locked state in 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 non-locked state of a door lock according to a fifth embodiment of the present invention;
fig. 18 is a state diagram of a door lock actuator for a home appliance when the door lock is in a locked state in the fifth embodiment of the present invention.
Detailed Description
The door lock actuator for a home appliance according to the present invention will be described in detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "left", "right", "upper", "lower", "bottom", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and "first", "second", etc. do not represent the importance of the parts and thus are not to be construed as limiting the present invention. The specific dimensions and numerical values adopted in the embodiment are only for illustrating the technical scheme, and do not limit the protection scope of the invention. The following embodiments take the safety door lock of the present invention as an example for 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.
As shown in fig. 1, a door lock actuator for a home appliance according to the present invention 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 shell 101, one end of the first latch arm 105 and one end of the second latch arm 107, which are used for being matched with the door buckle 106, are respectively a first latch arm head end 109 and a second latch arm head end 110, the other end of the first latch arm 107 is respectively a first latch arm tail end 112 and a second latch arm tail end 111, 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 or pressing the first latch arm end 109 and the second latch arm end 110 closer together. More simply, the locking function is achieved by positioning the locking block 102 between the first latch arm tail end 112 and the second latch arm tail end 111, restricting movement of the first latch arm 105 and the second latch arm 107, and the first latch arm head end 109 and the second latch arm head end 110 capture the keeper 106.
Preferably, the first and second latch arm tails 112, 111 have locking surfaces 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 by a shaft 103, and one end of the lock block 102 has a lock surface 114. The door lock locking function is achieved by pressing the locking surface 114 against the locking surface 113. The locking surface 113 and the locking surface 114 are generally convex, although a planar surface is also possible. When at least one of the locking surface 113 and the locking surface 114 is convex, the contact position between the locking surface 113 and the locking surface 114 is flexible, and even if the latch arm or the locking block is lost or moved in the use process of the door lock, the contact mode of the locking surface and the locking surface can compensate the position deviation, so that the locking effect is ensured to be stable.
In a simpler manner, a mounting groove 115 is provided on the side of the locking piece, and a torsion spring is arranged in the mounting groove 115, which can press the locking surface 114 against the locking surface 113. The torsion spring can automatically work in the door lock closing state without opening the locking switch. And in a strong state, the locked door lock can be unlocked without damaging the locking mechanism.
A position switch may be provided, for example, a micro switch is provided on the PCB 104, for detecting whether the locking mechanism is in a locked state.
The position switch is arranged at the position close to the movement track of the locking block, and when the position of the locking block changes, the position switch is triggered/released, so that different positions of the locking block, namely a locking position and an unlocking position, are indicated through different signal states of the position switch.
Example two
As shown in fig. 7, the door lock actuator for a home appliance in the present embodiment does not use a compression spring on the basis of the first embodiment. The lock block 202 is mounted on the bottom case 201 by a shaft 203, and the shaft 203 is parallel to the bottom surface of the bottom case 201. An 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, when 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 anticlockwise direction, and the locking block approaches to 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 adopts a motor or the like, and a linear motor or a rotary motor can be selected according to the application situation. The locking switch may be manually operated or may be determined by the state of the household appliance, for example, when the dish washing function is started, the locking switch sends a locking signal to the driving device.
Example III
Similar to the embodiment, but the direction of rotation of the lock block is changed. As shown in fig. 10 and 11, the lock block 302 is mounted on the bottom case 301 by a shaft 303, the shaft 303 is perpendicular to the bottom surface of the bottom case 301, and the shaft 303 is located on the first latch arm 305 side. The lock block 302 has a section of connecting arm. The output shaft of the drive means 316 drives the locking block 302 to rotate about the shaft 303.
When the door lock is closed, a locking signal is sent to the driving device through the locking switch, the driving device drives one end of the locking block, which is far away from the shaft, to rotate in the anticlockwise direction, the sweeped sector is parallel to the bottom shell, the locking surface of the locking block is close to the locking surface until the locking surface is pressed, and at the moment, the first latch arm and the second latch arm are limited to move, and the door lock is locked.
Example IV
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 chassis 401 by the same mounting shaft. The driving device 416 may drive the locking block 402 to move along a straight line, where the moving path of the locking block 402 is parallel to or coincides with the central axis of the latch arm.
As shown in fig. 14 and 15, when 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 along a straight line, a plane swept by the movement of the locking block is parallel to the bottom shell, the locking block approaches to the left until the locking surface presses the locking surface, and at the moment, 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 movement direction of the lock block is changed. As shown in fig. 16, the locking block 502 is L-shaped when viewed from the side, and the output shaft of the driving device 516 drives the locking block 502 to move up and down along a straight line, where the moving path of the locking block 502 is perpendicular to or forms a certain angle with the bottom shell 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 along 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 on the description of the preferred embodiments of the present invention, it should be clear that the invention defined by the appended claims is not limited to the specific details set forth in the above description, but that many apparent variations of the invention are possible without departing from the spirit or scope thereof.
Claims (9)
1. A door lock actuator for a household appliance includes a bottom case, a latch arm, and a locking mechanism; the latch arms are hinged on the bottom shell, and one end of each latch arm, which is used for being matched with the corresponding door catch, is a latch arm head end; the locking mechanism is characterized in that the other end of the latch arm is the tail end of the latch arm, and the locking mechanism comprises a locking block; the locking function of the door lock is realized through the tail end movement; the latch arms comprise first latch arms, second latch arms and second elastic elements, the first latch arms and the second latch arms are symmetrically hinged on the bottom shell, and the first latch arm head ends and the second latch arm head ends are connected through the second elastic elements; the locking block is arranged between the first latch arm and the second latch arm to limit the movement of the first latch arm and the second latch arm, so that a locking function is realized.
2. The door lock actuator for a home appliance 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 surface is pressed by the locking surface to realize a locking function.
3. The door lock actuator for a home appliance according to claim 2, 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 a home appliance according to claim 2, wherein the locking mechanism further comprises a driving means for driving the locking surface to press against or away from the locking surface.
5. The door lock actuator for a home appliance as claimed in claim 4, wherein the locking block is mounted on the bottom case by a shaft, the shaft being parallel to the bottom surface of the bottom case, and the driving means rotates the locking block around the shaft.
6. The door lock actuator for a home appliance as claimed in claim 4, wherein the locking block is mounted on the bottom case by a shaft perpendicular to a bottom surface of the bottom case, the shaft being 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 a home appliance as claimed in 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 parallel to or coincides with a central axis of the latch arm.
8. The door lock actuator for a home appliance as claimed in claim 4, wherein the driving means moves the locking block in a straight line, and a moving path of the locking block is perpendicular to or at an angle to the bottom case.
9. The door lock actuator for a home appliance as claimed in 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 CN115263097A (en) | 2022-11-01 |
| CN115263097B true 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 |
|---|---|
| CN115263097A (en) | 2022-11-01 |
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