Lifting type door lock device and household appliance

Abstract

The invention relates to the technical field of household appliance door lock devices, and provides a lifting type door lock device and a household 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; 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] The present invention relates to the technical field of household appliance door lock devices, and in particular to a lifting door lock device and a household appliance. Background Art

[0002] With the popularization of smart home devices, the design of the door locking mechanism of household appliances has increasingly higher requirements for space utilization and user experience. The door of existing household appliances is opened and closed by flipping up and down. When the door of the household appliance is closed, the lock of the door of the household appliance needs to be squeezed into the household appliance. When the door of the household appliance is opened, the user needs to pull the door of the household appliance with a certain force to separate the lock of the door of the household appliance from the lock seat of the household appliance. Since the lock of the door of the household appliance is squeezed into the lock seat when the door of the household appliance is closed, the lock seat needs to be provided with an elastically deformed clamping mechanism to prevent the cooperation between the lock and the lock seat from failing; or, the existing household appliances are opened and closed on the body of the household appliance in a drawer manner. In the process of working, in order to prevent children from pulling the drawer at will, the corresponding household appliances, such as dishwashers, washing machines, disinfection cabinets, or cooking appliances with doors (such as microwave ovens, etc.), are provided with corresponding door locking devices. Summary of the invention

[0003] The present invention proposes a lifting door lock device and a household appliance. By providing a lock catch that moves up and down and a driver for driving the lock catch to move up and down on the lifting door lock device, when the door is closed, the user does not need to squeeze the lock catch of the door into the lock seat, and when the door is open, the user does not need to use a corresponding force to pull the door open, thereby realizing convenient door locking and unlocking operations. In addition, there is no need to design an elastic deformation clamping mechanism with high precision on the lock seat, thereby simplifying the structural design of the lock seat.

[0004] A lifting door lock device designed for this purpose includes a lock catch that cooperates with a lock seat, and a driver that is transmission-connected to the lock catch. The driver includes a drive shaft that moves laterally back and forth. When the driver is started, the drive shaft triggers the lock catch to move to a locked position or an unlocked position. The movement direction of the lock catch is perpendicular to the movement direction of the drive shaft. The lock catch enters or leaves the lock seat by moving up and down.

[0005] A slider is provided between the driver and the lock; the slider is arranged on the end of the driver driving shaft, the lock is movably connected to the slider, the moving direction of the slider is the same as the moving direction of the driving shaft, the driver starts and drives the slider to slide horizontally, and the slider triggers the lock to move up and down.

[0006] The slider is provided with a lifting guide groove, and the lock buckle is movably connected with the lifting guide groove of the slider. When the slider slides horizontally, the lock buckle is triggered to move up and down along the lifting guide groove.

[0007] A trigger member that mates with the lifting guide groove is provided on the latch. During the lateral sliding of the slider, through the cooperation of the lifting guide groove and the trigger member, the latch is triggered to move up and down along the lifting guide groove.

[0008] The lift-type door lock device further includes a fixed seat. The fixed seat is provided with a first guide groove portion for limiting and guiding the up-and-down movement of the latch. One side of the guiding latch is limited to move on the first guide groove portion of the fixed seat during the up-and-down movement of the guiding latch.

[0009] The fixed seat is provided with a second guide groove portion for limiting and guiding the lateral movement of the slider. The bottom of the slider is limited to move on the second guide groove portion of the fixed seat during the lateral movement of the guiding slider.

[0010] A household appliance designed according to this purpose includes a body, and a door body hinged to the body through a hinge, or a door body movably arranged on the body by pulling and pushing. The above-mentioned lift-type door lock device is provided on the door body, and the lock base is arranged on the body.

[0011] The household appliance further includes an elastic pushing device. The elastic movement direction of the elastic pushing device is the same as the opening and closing direction of the door body. When the door body is closed and locked on the body, the door body presses the elastic pushing device; When the latch of the door body is disengaged from the lock base of the body, the elastic pushing device releases its elastic force and pushes the door body outward of the body, realizing automatic opening of the door body in the unlocked state.

[0012] The elastic pushing device includes a push rod for pushing the door body and making a lateral movement, and an elastic member for providing an elastic acting force to the push rod. The push rod makes an elastic telescopic movement through the elastic member under an external force. The elastic member is a spring.

[0013] The household appliance is a dishwasher, a washing machine, a refrigerator, a disinfection cabinet, an oven, a microwave oven, a microwave steam oven, a light wave oven, or an electric steam oven; Alternatively, the elastic pushing device is arranged on a corresponding accessory of the body.

[0014] When the household appliance is a dishwasher or a disinfection cabinet, a bowl basket for loading tableware is provided inside the body, and the elastic pushing device is arranged on the bowl basket.

[0015] The beneficial technical effects of the present invention are as follows: By providing a latch that moves up and down and a driver for driving the latch to move up and down on the lifting door lock device, when the door is in the closed state, the user does not need to squeeze the latch of the door into the lock seat, and when the door is in the open state, the user does not need to use a corresponding force to open the door, realizing the convenience of locking and unlocking the door, and there is no need to design a highly precise elastic deformation clamping mechanism on the lock seat, simplifying the structural design of the lock seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic exploded assembly structure diagram of a household appliance door body according to an embodiment of the present invention.

[0017] Figure 2 is Figure 1 an enlarged view of part A in

[0018] Figure 3 FIG. is a schematic exploded assembly structure diagram of a lifting door lock device according to an embodiment of the present invention.

[0019] Figure 4 FIG. is a schematic three-dimensional cross-sectional structure diagram of a driver, a slider and a latch according to an embodiment of the present invention.

[0020] Figure 5 FIG. is a schematic three-dimensional structure diagram of a fixed seat according to an embodiment of the present invention.

[0021] Figure 6 FIG. is a schematic three-dimensional structure diagram of a slider according to an embodiment of the present invention.

[0022] Figure 7 FIG. is a schematic three-dimensional structure diagram of a latch according to an embodiment of the present invention.

[0023] Figure 8 FIG. is a schematic structure diagram of a latch in a lowered position state according to an embodiment of the present invention.

[0024] Figure 9 FIG. is a schematic structure diagram of a latch in another lowered position state according to an embodiment of the present invention.

[0025] Figure 10 FIG. is a schematic structure diagram of a household appliance according to an embodiment of the present invention.

[0026] Figure 11 is Figure 10 an enlarged view of part B in

[0027] Figure 12 FIG. is a schematic three-dimensional cross-sectional structure diagram of an elastic ejection device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, many specific details are set forth in the following description to facilitate 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 violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] See also Figures 1-12 A lifting door lock device includes a lock catch 2 matched with a lock seat 1, and a driver 3 connected to the lock catch 2. The driver 3 includes a drive shaft 14 that reciprocates laterally. When the driver 3 is started, the drive shaft 14 triggers the lock catch 2 to move to a locked position or an unlocked position. The movement direction of the lock catch 2 is perpendicular to the movement direction of the drive shaft 14. The lock catch 2 enters or leaves the lock seat 1 by moving up and down.

[0030] The moving direction of the lock 2 is perpendicular to the moving direction of the drive shaft 14. The transmission path between the transversely movable drive shaft 14 and the vertically movable lock 2 is shortened, which improves the response speed and effectively reduces the length and space design requirements of the door lock device.

[0031] A slider 4 is provided between the driver 3 and the lock 2; the slider 4 is arranged on the end of the driving shaft 14 of the driver 3, the driving shaft 14 of the driver 3 is connected to the slider 4, the lock 2 is movably connected to the slider 4, the moving direction of the slider 4 is the same as the moving direction of the driving shaft 14, the driver 3 starts and drives the slider 4 to slide horizontally, and the slider 4 triggers the lock 2 to move up and down.

[0032] The lateral linear motion of the drive shaft 14 provides a force for the vertical motion of the lock 2, further optimizing the transmission efficiency. The lateral sliding path of the slider 4 is in the same direction as the drive shaft 14, reducing the energy loss of the motion direction conversion; the separate movable connection design of the lock 2 and the slider 4 allows the two to move relatively independently to avoid motion interference. This structure simplifies the assembly process, and the slider can be made of a low friction coefficient material to extend its service life.

[0033] The driver 3 triggers the movement of the lock 2 through the slider 4, avoiding energy loss of the multi-stage transmission structure and significantly improving the locking reliability.

[0034] In this embodiment, a slot 4.1 is provided on the slider 4, and the end of the drive shaft 14 is locked in the slot 4.1 of the slider 4. The drive shaft 14 drives the slider 4 to reciprocate horizontally during the horizontal telescopic movement.

[0035] 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 lateral sliding of the slider 4, the latch 2 is triggered to move up and down along the lifting guide groove 5.

[0036] A lifting guide groove 5 is arranged on the slider 4, and the lifting and lowering trajectory of the latch 2 is precisely controlled through the inclined or curved profile of the lifting guide groove 5.

[0037] In this embodiment, the lifting guide groove 5 includes a transverse groove 5.1 and an inclined groove 5.2. The transverse groove 5.1 is communicated with the inclined groove 5.2, and the slider 4 triggers the latch 2 to move up and down through the inclined groove 5.2.

[0038] The latch 2 is provided with a trigger member 12 that cooperates with the lifting guide groove 5. During the lateral sliding of the slider 4, through the cooperation of the lifting guide groove 5 and the trigger member 12, the latch 2 is triggered to move up and down along the lifting guide groove 5.

[0039] Through the cooperation of the trigger member 12 and the lifting guide groove 5, the lateral driving force of the slider 4 is decomposed into the vertical component force of the latch 2 to achieve efficient force transmission. The trigger member 12 can adopt an arc-shaped surface design structure to reduce sliding friction.

[0040] In this embodiment, the latch 2 is provided with an opening groove 2.1 for inserting the slider 4. The trigger member 12 is arranged on the inner side of the opening groove 2.1. The trigger member 12 is provided on both sides of the opening groove 2.1, and the lifting guide groove 5 is provided on both outer sides of the slider 4, so that the latch 2 forms a movable connection structure for clamping the slider 4.

[0041] The lifting door lock device further includes a fixed seat 6. The fixed seat 6 is provided with a first guide groove portion 7 for limiting and guiding the up and down movement of the latch 2. One side of the guiding latch 2 is limited and moves on the first guide groove portion 7 of the fixed seat 6 during the up and down movement of the guiding latch 2.

[0042] In this embodiment, a limiting and guiding rib 2.2 that cooperates with the first guide groove portion 7 is provided on the side of the guiding latch 2. The limiting and guiding rib 2.2 is inserted into the first guide groove portion 7 to prevent the latch 2 from shifting on the fixed seat 6 during the up and down movement.

[0043] The fixed seat 6 is provided with a second guide groove portion 8 for limiting and guiding the lateral movement of the slider 4. The bottom of the slider 4 is limited and moves on the second guide groove portion 8 of the fixed seat 6 during the lateral movement of the guiding slider 4.

[0044] In this embodiment, a transverse rib 4.2 that cooperates with the second guide groove portion 8 is provided at the bottom of the slider 4. The transverse rib 4.2 is inserted into the second guide groove portion 8, and the slider 4 shifts on the fixed seat 6 during the lateral movement.

[0045] In this embodiment, the fixed seat 6 is provided with an installation cavity for installing the driver 3, the slider 4 and the latch 2. A top cover 18 is provided on the top of the fixed seat 6, and the top cover 18 covers the installation cavity. The driver 3, the slider 4 and the latch 2 are encapsulated in the installation cavity of the fixed seat 6 through the top cover 18. The top cover 18 is provided with a clearance position corresponding to the latching position of the latch 2 and the lock seat 1, and the telescopic movement of the latch 2 during its up and down movement is on the clearance position.

[0046] In this embodiment, the top cover 18 and the fixed seat 6 can be fixedly connected by snap fasteners or screws.

[0047] An appliance, including a body 9 and a door body 11 hinged to the body 9 through a hinge 10, or the door body 11 is slidably arranged on the body 9 through a drawer structure. The above-mentioned lift-type door lock device is provided on the door body 11, and the lock seat 1 is arranged on the body 9.

[0048] The appliance further includes an elastic pushing device 13. The elastic movement direction of the elastic pushing device 13 is the same as the opening and closing direction of the door body 11. The door body 11 is closed and locked on the body 9, and the door body 11 presses the elastic pushing device 13; When the latch 2 of the door body 11 is disengaged from the lock seat 1 of the body 9, the elastic pushing device 13 releases its elastic force and pushes the door body 11 outward of the body 9, realizing automatic opening of the door body 11 in the unlocked state. The user does not need to manually open the door body 11, simplifying the operation of the user to open the door body 11.

[0049] The elastic pushing device 13 includes a push rod 15 for pushing the door body 11 and making a lateral movement, and an elastic member 16 for providing an elastic acting force to the push rod 15. The push rod 15 makes an elastic telescopic movement through the elastic member 16 under an external force. The elastic member 16 is a spring.

[0050] The elastic pushing device 13 is arranged at the closing position between the body 9 and the door body 11, or the elastic pushing device 13 is arranged on the corresponding fittings of the body 9.

[0051] The appliance is a dishwasher or a washing machine or a refrigerator or a disinfection cabinet or a cooking appliance with a door body; The cooking appliance with a door body is an oven or a microwave oven or a microwave steam oven or a light wave oven or an electric steam oven, etc.

[0052] When the appliance is a dishwasher or a disinfection cabinet, a bowl basket 17 for loading tableware is arranged in the body 9, and the elastic pushing device 13 is arranged on the bowl basket 17.

[0053] In this embodiment, the household appliance is a dishwasher. An installation seat 19 is provided on the body. The push rod 15 is inserted into the installation seat 19. The push rod 15 is provided with a receiving cavity for installing the 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 installation seat 19. A first opening hole is provided on the outer side of the top plate of the body corresponding to the telescopic end of the push rod 15.

[0054] Alternatively, the installation seat 19 is fixed on the bowl basket 17. The bowl basket 17 is provided with a piston cover that cooperates with the installation seat 19 to prevent the push rod 15 from protruding out of the installation seat 19. The piston cover is provided with a second opening hole corresponding to the telescopic end of the push rod 15.

[0055] In this embodiment, the door body 11 includes a door frame 20 and a rear frame 21. The lift-type door lock device is arranged between the door frame 20 and the rear frame 21. The rear frame 21 is provided with a clearance opening 22 corresponding to the lock catch 2.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A lifting door lock device, characterized in that: The invention comprises a lock catch (2) matched with a lock seat (1), and a driver (3) drivingly connected to the lock catch (2), wherein the driver (3) comprises a drive shaft (14) which moves in a transverse reciprocating manner, wherein the drive shaft (14) triggers the lock catch (2) to move to a locked position or an unlocked position when the driver (3) is in an activated state, wherein the movement direction of the lock catch (2) is perpendicular to the movement direction of the drive shaft (14), and the lock catch (2) moves into or out of the lock seat (1) by moving up and down.

2. The lifting door lock device according to claim 1, characterized in that: A slider (4) is provided between the driver (3) and the lock buckle (2); the slider (4) is arranged on the end of a drive shaft (14) of the driver (3); the lock buckle (2) and the slider (4) are movably connected; the movement direction of the slider (4) is the same as the movement direction of the drive shaft (14); the driver (3) is started and drives the slider (4) to slide horizontally, and the slider (4) triggers the lock buckle (2) to move up and down.

3. The lifting door lock device according to claim 2, characterized in that: The slider (4) is provided with a lifting guide groove (5), and the lock buckle (2) is movably connected to the lifting guide groove (5) of the slider (4). When the slider (4) slides laterally, it triggers the lock buckle (2) to move up and down along the lifting guide groove (5).

4. The lifting door lock device according to claim 2, characterized in that: The lock buckle (2) is provided with a trigger member (12) that cooperates with the lifting guide groove (5). During the lateral sliding process, the slider (4) cooperates with the lifting guide groove (5) and the trigger member (12), thereby triggering the lock buckle (2) to move up and down along the lifting guide groove (5).

5. The lifting door lock device according to claim 2, characterized in that: The invention also comprises a fixing seat (6), wherein the fixing seat (6) is provided with a first guide groove portion (7) for limiting the upward and downward movement of the guide lock buckle (2), and one side of the guide lock buckle (2) is limitedly moved on the first guide groove portion (7) of the fixing seat (6) during the upward and downward movement of the guide lock buckle (2).

6. The lifting door lock device according to claim 5, characterized in that: The fixed seat (6) is provided with a second guide groove portion (8) for limiting the lateral movement of the guide slider (4), and the bottom of the slider (4) is limitedly moved on the second guide groove portion (8) of the fixed seat (6) during the lateral movement of the guide slider (4).

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

8. The household appliance according to claim 7, characterized in that: It also includes an elastic ejection device (13), the elastic movement direction of the elastic ejection device (13) is the same as the opening and closing direction of the door body (11), the door body (11) is closed and locked on the machine body (9), and the door body (11) squeezes the elastic ejection device (13); When the lock catch (2) of the door body (11) is separated from the lock seat (1) of the machine body (9), the elastic ejection device (13) releases elastic force and pushes the door body (11) toward the outside of the machine body (9), thereby achieving automatic opening of the door body (11) in the unlocked state.

9. The household appliance according to claim 8, characterized in that: The elastic push-out device (13) comprises a push rod (15) for pushing the door body (11) and performing lateral movement, and an elastic member (16) for providing an elastic force to the push rod (15); the push rod (15) performs elastic telescopic movement through the elastic member (16) under the action of an external force.

10. The household appliance according to claim 8, characterized in that: The elastic ejection device (13) is arranged at a closed position between the machine body (9) and the door body (11), or the elastic ejection device (13) is arranged on a corresponding accessory of the machine body (9); The household appliance is a dishwasher, a washing machine, a refrigerator, a disinfection cabinet, an oven, a microwave oven, a microwave-steaming and baking machine, a light wave oven, or an electric steaming oven.

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