Lifting type door lock device and household appliance

Abstract

The utility model relates to the technical field of household electrical appliance door lock devices, and provides a lifting type door lock device and a household electrical appliance, the lifting type door lock device comprises a lock catch matched with a lock seat and a driver in transmission connection with the lock catch, and the driver comprises a driving shaft moving transversely in a reciprocating mode. The driving shaft triggers the lock catch to move to the locking position or the unlocking position when the driver is in the starting state, the moving direction of the lock catch is vertical to the moving direction of the driving shaft, and the lock catch enters or breaks away from the lock seat through vertical movement. A lock catch moving up and down and a driver used for driving the lock catch to move up and down are arranged on the lifting type door lock device, when the door body is in a closed state, a user does not need to plug the lock catch of the door body into a lock seat in an extrusion mode, and when the door body is in an open state, the user does not need to pull the door body open with corresponding force. The door body is locked, unlocking operation is convenient, an elastic deformation clamping mechanism with high precision does not need to be designed on the lock seat, and the structural design of the lock seat is simplified.

Description

Technical Field

[0001] This utility model relates to the technical field of door lock devices for household appliances, specifically to a lift-type door lock device and a household appliance. Background Technology

[0002] With the increasing popularity of smart home devices, the design of door locking mechanisms for home appliances is facing ever-increasing demands for space utilization and user experience. Currently, home appliance doors open and close by flipping up and down. When closing, the door latch needs to be squeezed into the appliance. When opening, the user needs to pull the door with a certain amount of force to disengage the latch from the lock seat. Furthermore, because the latch is squeezed into the lock seat when the door closes, the lock seat needs a spring-loaded locking mechanism to prevent the latch and lock seat from failing to engage. Alternatively, existing home appliances use a drawer-like mechanism. To prevent children from pulling on the drawers during operation, these appliances, such as dishwashers, washing machines, sterilizers, or cooking appliances with doors (such as microwave ovens), are equipped with corresponding door locks. Utility Model Content

[0003] This utility model proposes a lifting door lock device and a household appliance. By providing a latch that moves up and down and a driver for driving the latch to move up and down, when the door is closed, the user does not need to squeeze the latch into the lock seat. When the door is open, the user does not need to use corresponding force to pull the door open, thus realizing the convenience of locking and unlocking the door. Moreover, the lock seat does not need to be designed with a high-precision elastic deformation clamping mechanism, simplifying the structural design of the lock seat.

[0004] A lifting door lock device designed for this purpose includes a latch that cooperates with a lock seat and a driver that is connected to the latch. The driver includes a drive shaft that reciprocates laterally. When the driver is activated, the drive shaft triggers the latch to move to a locked or unlocked position. The direction of movement of the latch is perpendicular to the direction of movement of the drive shaft. The latch moves into or out of the lock seat by moving up and down.

[0005] A slider is provided between the driver and the latch; the slider is located on the end of the driver's drive shaft, the latch is movably connected to the slider, the slider moves in the same direction as the drive shaft, the driver starts and drives the slider to slide laterally, and the slider triggers the latch to move up and down.

[0006] The slider is provided with a lifting guide groove, and the latch is movably connected to the lifting guide groove of the slider. During the horizontal sliding process of the slider, the latch is triggered to move up and down along the lifting guide groove.

[0007] The latch is equipped with a trigger element that cooperates with the lifting guide groove. During the lateral sliding process, the slider is triggered to move up and down along the lifting guide groove by cooperating with the trigger element through the lifting guide groove.

[0008] The lifting door lock device also includes a fixed base, which has a first guide groove for limiting the up and down movement of the guide latch. One side of the guide latch is limited to move on the first guide groove of the fixed base during the up and down movement of the guide latch.

[0009] The fixed base is provided with a second guide groove for limiting the lateral movement of the guide slider. The bottom of the slider is limited to the second guide groove of the fixed base during the lateral movement of the guide slider.

[0010] A household appliance designed for this purpose includes a body and a door hinged to the body, or a door that is movably mounted on the body by pulling, wherein the door is provided with the aforementioned lifting door lock device and the lock seat is mounted on the body.

[0011] Household appliances also include a flexible ejection device, the elastic movement direction of which is the same as the opening and closing direction of the door. When the door is closed and locked onto the machine body, the door squeezes the flexible ejection device.

[0012] When the door latch is disengaged from the locking seat of the machine, the elastic ejection device releases elastic force and pushes the door outward, thus enabling the door to open automatically when unlocked.

[0013] The elastic push-out device includes a push rod for pushing the door and making lateral movement, and an elastic element that provides elastic force to the push rod. Under the action of external force, the push rod makes elastic extension and retraction movement through the elastic element.

[0014] The elastic element is a spring.

[0015] The household appliances mentioned are dishwashers, washing machines, refrigerators, disinfection cabinets, ovens, microwave ovens, microwave steam ovens, light wave ovens, or electric steam ovens.

[0016] Alternatively, the elastic ejection device can be mounted on a corresponding accessory on the machine body.

[0017] When the household appliance is a dishwasher or a sterilizer, the machine body is equipped with a dish rack for loading tableware, and an elastic push-out device is installed on the dish rack.

[0018] The beneficial technical effects of this utility model are as follows:

[0019] By incorporating a latch that moves up and down and a driver that drives the latch to move up and down on the lifting door lock device, when the door is closed, the user does not need to squeeze the latch into the lock seat, and when the door is open, the user does not need to use corresponding force to pull the door open, thus achieving convenient door locking and unlocking operations. Moreover, the lock seat does not need to be designed with a high-precision elastic deformation clamping mechanism, simplifying the structural design of the lock seat. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the assembly and disassembly structure of a household appliance door according to an embodiment of the present invention.

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 This is an exploded view of the assembly structure of a lifting door lock device according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the driver, slider, and latch according to an embodiment of the present invention.

[0024] Figure 5 This is a three-dimensional structural diagram of a fixing base according to an embodiment of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of a slider according to an embodiment of the present invention.

[0026] Figure 7 This is a three-dimensional structural diagram of a latch according to an embodiment of the present invention.

[0027] Figure 8 This is a schematic diagram of the structure of the latch in the lowered position according to an embodiment of the present invention.

[0028] Figure 9 This is a schematic diagram of the structure of the latch in another descending position according to an embodiment of the present invention.

[0029] Figure 10 This is a schematic diagram of the structure of a household appliance according to an embodiment of the present invention.

[0030] Figure 11 for Figure 10 Enlarged view of section B in the middle.

[0031] Figure 12 This is a three-dimensional cross-sectional structural diagram of an elastic ejection device according to an embodiment of the present invention. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0033] See Figures 1-12 A lifting door lock device includes a latch 2 that cooperates with a lock seat 1, and a driver 3 that is driven by the latch 2. The driver 3 includes a drive shaft 14 that moves laterally reciprocating. When the driver 3 is activated, the drive shaft 14 triggers the latch 2 to move to the locked position or the unlocked position. The direction of movement of the latch 2 is perpendicular to the direction of movement of the drive shaft 14. The latch 2 moves into or out of the lock seat 1 by moving up and down.

[0034] The movement direction of the latch 2 is perpendicular to the movement direction of the drive shaft 14. The transmission path between the horizontally moving drive shaft 14 and the vertically moving latch 2 is shortened, which improves the response speed and effectively reduces the length space design requirements of the door lock device.

[0035] A slider 4 is provided between the driver 3 and the latch 2; the slider 4 is located on the end of the drive shaft 14 of the driver 3, the drive shaft 14 of the driver 3 is connected to the slider 4, the latch 2 is movably connected to the slider 4, the movement direction of the slider 4 is the same as the movement direction of the drive shaft 14, the driver 3 starts and drives the slider 4 to slide laterally, and the slider 4 triggers the latch 2 to move up and down.

[0036] The lateral linear motion of the drive shaft 14 provides force for the vertical motion of the latch 2, further optimizing transmission efficiency. The lateral sliding path of the slider 4 is in the same direction as the drive shaft 14, reducing energy loss during motion direction conversion; the separate movable connection design of the latch 2 and the slider 4 allows them to move relatively independently, avoiding motion interference. This structure simplifies the assembly process, and the slider can be made of a low-friction coefficient material, extending its service life.

[0037] The driver 3 triggers the movement of the latch 2 through the slider 4, avoiding energy loss in the multi-stage transmission structure and significantly improving locking reliability.

[0038] In this embodiment, the slider 4 is provided with a slot 4.1, and the end of the drive shaft 14 is locked in the slot 4.1 of the slider 4. During the lateral extension and retraction movement of the drive shaft 14, the slider 4 is driven to reciprocate laterally.

[0039] The slider 4 is provided with a lifting guide groove 5, and the latch 2 is movably connected to the lifting guide groove 5 of the slider 4. During the horizontal sliding process of the slider 4, the latch 2 is triggered to move up and down along the lifting guide groove 5.

[0040] A lifting guide groove 5 is provided on the slider 4, and the lifting trajectory of the latch 2 is precisely controlled by the tilt or curved contour of the lifting guide groove 5.

[0041] In this embodiment, the lifting guide groove 5 includes a horizontal groove 5.1 and an inclined groove 5.2. The horizontal groove 5.1 and the inclined groove 5.2 are connected, and the slider 4 triggers the latch 2 to move up and down through the inclined groove 5.2.

[0042] The latch 2 is provided with a trigger 12 that cooperates with the lifting guide groove 5. During the lateral sliding process, the slider 4 is triggered to move up and down along the lifting guide groove 5 by cooperating with the trigger 12 through the lifting guide groove 5.

[0043] By cooperating with the trigger 12 and the lifting guide groove 5, the lateral driving force of the slider 4 is decomposed into the vertical component of the latch 2, achieving efficient force transmission. The trigger 12 can adopt an arc-shaped surface design to reduce sliding friction.

[0044] In this embodiment, the latch 2 is provided with an opening groove 2.1 for inserting the slider 4, and the trigger 12 is provided on the inner side of the opening groove 2.1. Both sides of the opening groove 2.1 are provided with trigger 12, and both outer sides of the slider 4 are provided with lifting guide grooves 5, so that the latch 2 forms a movable connection structure for clamping the slider 4.

[0045] The lifting door lock device also includes a fixed base 6, which is provided with a first guide groove 7 for limiting the up and down movement of the guide latch 2. One side of the guide latch 2 is limited to move on the first guide groove 7 of the fixed base 6 during the up and down movement of the guide latch 2.

[0046] In this embodiment, the side of the guide lock 2 is provided with a limiting guide rib 2.2 that cooperates with the first guide groove 7. The limiting guide rib 2.2 is inserted into the first guide groove 7 to prevent the lock 2 from shifting off the fixed seat 6 during the up and down movement.

[0047] The fixed base 6 is provided with a second guide groove 8 for limiting the lateral movement of the guide slider 4. The bottom of the slider 4 is limited to the second guide groove 8 of the fixed base 6 during the lateral movement of the guide slider 4.

[0048] In this embodiment, the bottom of the slider 4 is provided with a transverse rib 4.2 that cooperates with the second guide groove 8. The transverse rib 4.2 is inserted into the second guide groove 8, and the slider 4 deviates from the fixed seat 6 during the transverse movement.

[0049] In this embodiment, the fixed base 6 is provided with a mounting cavity for mounting the driver 3, the slider 4 and the latch 2. The top of the fixed base 6 is provided with a top cover 18, which covers the mounting cavity. The driver 3, the slider 4 and the latch 2 are encapsulated in the mounting cavity of the fixed base 6 by the top cover 18. The top cover 18 is provided with a clearance space corresponding to the latch 2 and the locking base 1. When the latch 2 moves up and down, it extends and retracts in the clearance space.

[0050] In this embodiment, the top cover 18 and the fixing base 6 can be fixedly connected by a snap or screw.

[0051] A household appliance includes a body 9 and a door 11 hinged to the body 9 via a hinge 10, or the door 11 is movably mounted on the body 9 via a drawer structure. The door 11 is provided with the aforementioned lifting door lock device, and the lock base 1 is mounted on the body 9.

[0052] The household appliance also includes an elastic ejection device 13, the elastic movement direction of which is the same as the opening and closing direction of the door 11. The door 11 is closed and locked on the body 9, and the door 11 squeezes the elastic ejection device 13.

[0053] When the latch 2 of the door 11 is disengaged from the lock seat 1 of the body 9, the elastic push-out device 13 releases elastic force and pushes the door 11 to the outside of the body 9, so that the door 11 can be opened automatically in the unlocked state. The user does not need to manually pull the door 11, which simplifies the user's operation of opening the door 11.

[0054] The elastic push-out device 13 includes a push rod 15 for pushing the door 11 and making lateral movements, and an elastic element 16 for providing elastic force to the push rod 15. Under the action of external force, the push rod 15 makes elastic extension and retraction movements through the elastic element 16.

[0055] The elastic element 16 is a spring.

[0056] The elastic ejection device 13 is located at the closure between the body 9 and the door 11, or the elastic ejection device 13 is located on a corresponding accessory of the body 9.

[0057] The household appliance is a dishwasher, washing machine, refrigerator, disinfection cabinet, or cooking appliance with a door.

[0058] The cooking appliances with doors are ovens, microwave ovens, microwave-steam-grill combos, lightwave ovens, electric steamers, etc.

[0059] When the household appliance is a dishwasher or a sterilizer, the body 9 is provided with a dish basket 17 for loading tableware, and an elastic push-out device 13 is provided on the dish basket 17.

[0060] In this embodiment, the household appliance is a dishwasher. The machine body is provided with a mounting base 19, and a push rod 15 is inserted into the mounting base 19. The push rod 15 is provided with a receiving cavity for installing an elastic member 16. One end of the elastic member 16 elastically acts on the receiving cavity of the push rod 15, and the other end of the elastic member 16 elastically acts on the inner side of the mounting base 19. A first opening hole is provided on the outer side of the top plate of the machine body corresponding to the telescopic end of the push rod 15.

[0061] Alternatively, the mounting base 19 is fixed on the bowl basket 17, and the bowl basket 17 is provided with a piston cover that cooperates with the mounting base 19 to prevent the push rod 15 from coming out of the mounting base 19. The piston cover is provided with a second opening hole corresponding to the telescopic end of the push rod 15.

[0062] In this embodiment, the door body 11 includes a door frame 20 and a rear frame 21. A lifting door lock device is disposed between the door frame 20 and the rear frame 21. The rear frame 21 is provided with an opening 22 for clearance corresponding to the latch 2.

[0063] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An overhead door lock apparatus, characterized by: The device comprises a lock catch (2) matched with a lock seat (1), and a driver (3) in transmission connection with the lock catch (2), the driver (3) comprising a transversely reciprocating driving shaft (14), the driving shaft (14) triggering the lock catch (2) to move to a locking position or an unlocking position in a state of starting the driver (3), the moving direction of the lock catch (2) being vertical to the moving direction of the driving shaft (14), and the lock catch (2) moving into or out of the lock seat (1) by moving up and down.

2. A lockset assembly according to claim 1, wherein: A sliding block (4) is arranged between the driver (3) and the lock catch (2), the sliding block (4) being arranged on the end of the driving shaft (14) of the driver (3), the lock catch (2) being in movable connection with the sliding block (4), the moving direction of the sliding block (4) being the same as the moving direction of the driving shaft (14), the driver (3) being started and driving the sliding block (4) to slide transversely, and the sliding block (4) triggering the lock catch (2) to move up and down.

3. A lockset assembly according to claim 2, wherein: The sliding block (4) is provided with a lifting guide groove (5), the lock catch (2) being in movable connection with the lifting guide groove (5) of the sliding block (4), the sliding block (4) triggering the lock catch (2) to move up and down along the lifting guide groove (5) in the process of transversely sliding.

4. The lift bolt lockset device of claim 2, wherein: The lock catch (2) is provided with a trigger (12) matched with the lifting guide groove (5), the sliding block (4) triggering the lock catch (2) to move up and down along the lifting guide groove (5) by matching the lifting guide groove (5) with the trigger (12) in the process of transversely sliding.

5. The lift bolt lockset device of claim 2, wherein: The device further comprises a fixing seat (6), the fixing seat (6) being provided with a first guide groove part (7) for limiting and guiding the lock catch (2) to move up and down, one side of the lock catch (2) being limited and guided to move on the first guide groove part (7) of the fixing seat (6) in the process of moving up and down.

6. A lockset assembly according to claim 5 wherein: The fixing seat (6) is provided with a second guide groove part (8) for limiting and guiding the sliding block (4) to move transversely, the bottom of the sliding block (4) being limited and guided to move on the second guide groove part (8) of the fixing seat (6) in the process of moving transversely.

7. A household appliance comprising a body (9) and a door body (11) which is opened and closed on the body (9), characterized by: The door body (11) is provided with the lifting door lock device according to any one of claims 1-6, and the lock seat (1) is arranged on the machine body (9).

8. The domestic appliance according to claim 7, characterized in that: The device further comprises an elastic pushing device (13), the elastic moving direction of the elastic pushing device (13) being the same as the opening and closing direction of the door body (11), the door body (11) being closed and locked on the machine body (9), and the door body (11) pressing the elastic pushing device (13). In a state that the lock catch (2) of the door body (11) is separated from the lock seat (1) of the machine body (9), the elastic pushing device (13) releases the elastic force and pushes the door body (11) to the outside of the machine body (9), so that the door body (11) is automatically opened in the unlocking state.

9. The domestic appliance according to claim 8, characterized in that: The elastic pushing device (13) comprises a push rod (15) for pushing the door body (11) and moving transversely, and an elastic member (16) for providing the elastic force to the push rod (15), the push rod (15) being elastically stretched and contracted by the elastic member (16) under the external force.

10. The domestic appliance according to claim 8, characterized in that: The elastic push-out device (13) is arranged on the closure between the machine body (9) and the door body (11), or the elastic push-out device (13) is arranged on the corresponding accessory of the machine body (9). The household appliance is a dishwasher or a washing machine or a refrigerator or a sterilizer or an oven or a microwave oven or a microwave steaming and baking integrated machine or a light wave oven or an electric steaming oven.

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