Door lock device for dish washing machine

Abstract

A door lock device for a dish washing machine comprises a lock catch and a lock hook elastically and movably arranged on a push rod, a lock separation part is arranged between the lock catch and the lock hook, and the lock catch is buckled with or released from the lock hook through the lock separation part under the action of external force and triggers the lock hook to elastically move; the lock separation part comprises a buckle hole formed in the lock catch and a hook part arranged on the lock hook, and the hook part and the buckle hole are mutually buckled or released under the action of external force; and the lock hook is elastically connected with the push rod through the elastic piece. According to the door lock device for the dish washing machine, the lock catch and the lock hook elastically and movably arranged on the push rod are arranged, the lock catch and the lock hook are mutually buckled or released through the lock separation part under the action of external force, the lock hook is triggered to elastically move, and due to the fact that the lock hook can elastically move, the lock catch cannot be clamped when the door body is forcibly pulled to be opened; the lock catch and the lock hook can be smoothly released, so that the door is opened more smoothly, the phenomenon that the door body cannot be opened is avoided, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, and in particular to a door lock device for a dishwasher. Background Technology

[0002] Currently, dishwasher door lock devices on the market generally use a latch structure to lock the dishwasher when it is closed, and then release the latch by pulling the door when it is opened. However, this latch structure is prone to jamming when opening the door, resulting in difficulty in opening the door or even the door not being able to be opened, which reduces the user experience.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a door lock device for dishwashers that is simple in structure, opens smoothly, is safe and reliable, provides a good user experience, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A door lock device for a dishwasher designed for this purpose is characterized by comprising a latch and a hook that is elastically and movably disposed on a push rod, wherein a locking-off part is provided between the latch and the hook, and the latch engages or disengages with the hook through the locking-off part under the action of external force, thereby triggering the elastic movement of the hook.

[0006] The locking part includes a buckle hole on the buckle and a hook on the lock hook. Under the action of external force, the hook and buckle hole can be engaged or disengaged.

[0007] It also includes an elastic element, through which the locking hook and the push rod are elastically connected.

[0008] The lock hook is provided with a hook hole, the push rod is provided with a hook post, one end of the elastic element is provided with a first hook connection part, and the other end is provided with a second hook connection part. The first hook connection part is hooked to the hook hole, and the second hook connection part is hooked to the hook post.

[0009] The locking hook is equipped with a rotating shaft, and the push rod is equipped with a rotating hole. Under the elastic force of the elastic element, the locking hook rotates elastically on the push rod through the cooperation of the rotating shaft and the rotating hole.

[0010] The locking hook is provided with a first movable shaft, and the push rod is provided with a first slot. The first movable shaft is movably mounted on the first slot. Under the elastic force of the elastic element, the locking hook elastically swings on the push rod through the cooperation of the first movable shaft and the first slot.

[0011] The locking hook is provided with a second slot, and the push rod is provided with a second movable shaft. The second movable shaft is movably mounted on the second slot. Under the elastic force of the elastic element, the locking hook swings elastically on the push rod through the cooperation of the second movable shaft and the second slot.

[0012] The push rod is provided with a receiving groove, and the locking hook is elastically and movable on the receiving groove. Under the action of external force, the locking buckle partially extends into the receiving groove or moves out of the receiving groove.

[0013] The latch connects to the dishwasher door; when the door is closed, the latch engages with the hook via the locking part, triggering the hook to move elastically; when the door is opened, the latch disengages from the hook via the locking part, triggering the hook to move elastically.

[0014] The push rod is designed to move forward and backward. When the push rod moves forward and backward, it sequentially pushes out or closes the door through the locking hook and latch.

[0015] The dishwasher door lock device of this utility model is equipped with a latch and a hook that is elastically mounted on the push rod. Under the action of external force, the latch engages or disengages with the hook through the locking part, and triggers the elastic movement of the hook. Because the hook can move elastically, the latch will not jam when the door is pulled open. The latch and the hook can disengage smoothly, making the door opening smoother and preventing the door from being unable to be opened, thus improving the user experience. Attached Figure Description

[0016] Figure 1 These are cross-sectional views of the door lock device in the first and second embodiments of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the door lock device in the first and second embodiments of this utility model.

[0018] Figure 3 This is a partial structural diagram of the door lock device in the first embodiment of the present invention.

[0019] Figure 4 This is a partial structural diagram of the door lock device in the second embodiment of the present invention.

[0020] Figure 5 This is an exploded view of the door lock device in the first embodiment of the present invention.

[0021] Figure 6 This is an exploded view of the door lock device in the second embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the overall structure of the door lock device in the third embodiment of this utility model.

[0023] Figure 8 This is an exploded view of the door lock device in the third embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram illustrating the cooperation between the latch and the hook in the first, second, and third embodiments of this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First embodiment:

[0027] See Figures 1-3 , Figure 5 , Figure 9 The door lock device used in this dishwasher includes a latch 1 and a hook 2 that is elastically and movably mounted on a push rod 17. A locking-off part is provided between the latch 1 and the hook 2. Under the action of external force, the latch 1 engages or disengages with the hook 2 through the locking-off part, and triggers the elastic movement of the hook 2.

[0028] The locking part includes a buckle hole 3 provided on the buckle 1 and a hook part 4 provided on the hook 2. Under the action of external force, the hook part 4 and the buckle hole 3 are engaged or disengaged.

[0029] It also includes an elastic element 5, and the locking hook 2 and the push rod 17 are elastically connected through the elastic element 5, which is a tension spring.

[0030] The locking hook 2 is provided with a hook hole 6, the push rod 1 is provided with a hook post 7, the elastic element 5 is provided with a first hook connection part 8 at one end and a second hook connection part 9 at the other end. The first hook connection part 8 hooks with the hook hole 6, and the second hook connection part 9 hooks with the hook post 7.

[0031] The locking hook 2 is provided with a rotating shaft 10, and the push rod 17 is provided with a rotating hole 11. Under the elastic force of the elastic element 5, the locking hook 2 rotates elastically on the push rod 17 through the cooperation of the rotating shaft 10 and the rotating hole 11. When the hook part 4 of the locking hook 2 is engaged with the buckle hole 3 of the lock buckle 1, the lock buckle 1 pushes the locking hook 2 to make the locking hook 2 rotate elastically. When the buckle hole 3 reaches the position of the hook part 4, the locking hook 2 rotates elastically to reset, so that the hook part 4 and the buckle hole 3 are engaged. When the hook part 4 of the locking hook 2 is disengaged from the buckle hole 3 of the lock buckle 1, the lock buckle 1 pushes the locking hook 2 to make the locking hook 2 rotate elastically, thereby causing the hook part 4 to disengage from the buckle hole 3, realizing disengagement. After the lock buckle 1 leaves the locking hook 2, the locking hook 2 rotates elastically to reset.

[0032] The push rod 17 is provided with a receiving groove 16, and the locking hook 2 is elastically and movably disposed on the receiving groove 16. Under the action of external force, the locking buckle 1 partially extends into the receiving groove 16 or moves out of the receiving groove 16.

[0033] The latch 1 is connected to the door of the dishwasher; when the door is closed, the latch 1 is engaged with the hook 2 through the locking part, and the hook 2 is triggered to move elastically; when the door is pulled open, the latch 1 is disengaged from the hook 2 through the locking part, and the hook 2 is triggered to move elastically.

[0034] The push rod 17 is set to move back and forth. When the push rod 17 moves back and forth, it pushes out or closes the door in sequence through the locking hook 3 and the locking buckle 2. When the push rod 17 pushes out of the door, the dishwasher can automatically ventilate.

[0035] The door lock device also includes a housing 18, a first connecting rod 19, a second connecting rod 20, a micro switch 21, and a spring 22. The first connecting rod 19 is movably mounted on the push rod 17, and the push rod 17 and the second connecting rod 20 are movably mounted on the housing 18. The micro switch 21 is fixed on the housing 18, and the spring 22 is located between the second connecting rod 20 and the housing 18. When the door is closed, the latch 2 and the latch 1 engage with each other. The latch 1 pushes the first connecting rod 19 and the second connecting rod 20 in sequence, so that the second connecting rod 20 presses the micro switch 21, thereby connecting the dishwasher's circuit and allowing the dishwasher to work normally. When the door is opened, the latch 2 and the latch 1 disengage, and the latch 1 disengages from the first connecting rod 19. Under the elastic force of the spring 22, the second connecting rod 20 drives the first connecting rod 19 to reset, thereby resetting the micro switch 5. The dishwasher's circuit is disconnected, and the dishwasher cannot start working.

[0036] The door lock device also includes a motor 23 and a gear assembly 24. A rack portion 25 is provided on the push rod 17. The motor 23 drives the gear assembly 24, and the gear assembly 24 meshes with the rack portion 25. The motor 23 drives the push rod 17 to move back and forth in sequence through the gear assembly 24 and the rack portion 25. The gear assembly 24 consists of multiple meshing gears. The motor 23 is fixed on the housing 18, and the gear assembly 24 is rotatably mounted on the housing 18.

[0037] Second embodiment:

[0038] See Figures 1-2 , Figure 4 , Figure 6 , Figure 9 The door lock device used in this dishwasher differs from that in the first embodiment in that:

[0039] The locking hook 2 is provided with a first movable shaft 12, and the push rod 17 is provided with a first slot 13. The first movable shaft 12 is movably disposed on the first slot 13. Under the elastic force of the elastic element 5, the locking hook 2 elastically swings on the push rod 17 through the cooperation of the first movable shaft 12 and the first slot 13.

[0040] When the hook 4 of the hook 2 engages with the buckle hole 3 of the latch 1, the latch 1 pushes the hook 2 to make the hook 2 swing elastically. When the buckle hole 3 reaches the position of the hook 4, the hook 2 swings elastically back to its original position so that the hook 4 engages with the buckle hole 3. When the hook 4 of the hook 2 disengages from the buckle hole 3 of the latch 1, the latch 1 pushes the hook 2 to make the hook 2 swing elastically, thereby causing the hook 4 to disengage from the buckle hole 3, thus achieving disengagement. After the latch 1 disengages from the hook 2, the hook 2 swings elastically back to its original position.

[0041] The other parts not described are the same as in the first embodiment, and will not be analyzed or explained here.

[0042] Third embodiment:

[0043] See Figures 7-9 The door lock device used in this dishwasher differs from that in the first embodiment in that:

[0044] The locking hook 2 is provided with a second slot 14, and the push rod 17 is provided with a second movable shaft 15. The second movable shaft 15 is relatively movably disposed on the second slot 14. Under the elastic force of the elastic element 5, the locking hook 2 elastically swings on the push rod 17 through the cooperation of the second movable shaft 15 and the second slot 14.

[0045] When the hook 4 of the hook 2 engages with the buckle hole 3 of the latch 1, the latch 1 pushes the hook 2 to make the hook 2 swing elastically. When the buckle hole 3 reaches the position of the hook 4, the hook 2 swings elastically back to its original position so that the hook 4 engages with the buckle hole 3. When the hook 4 of the hook 2 disengages from the buckle hole 3 of the latch 1, the latch 1 pushes the hook 2 to make the hook 2 swing elastically, thereby causing the hook 4 to disengage from the buckle hole 3, thus achieving disengagement. After the latch 1 disengages from the hook 2, the hook 2 swings elastically back to its original position.

[0046] The other parts not described are the same as in the first embodiment, and will not be analyzed or explained here.

[0047] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A door lock device for a dishwasher, characterized in that: It includes a latch (1) and a hook (2) that is elastically and movably set on a push rod (17). A locking-off part is provided between the latch (1) and the hook (2). Under the action of external force, the latch (1) engages or disengages with the hook (2) through the locking-off part and triggers the elastic movement of the hook (2).

2. The door lock device for a dishwasher according to claim 1, characterized in that: The locking part includes a buckle hole (3) provided on the buckle (1) and a hook part (4) provided on the hook (2). Under the action of external force, the hook part (4) and the buckle hole (3) are engaged or disengaged.

3. The door lock device for a dishwasher according to claim 2, characterized in that: It also includes an elastic element (5), and the locking hook (2) and the push rod (17) are elastically connected through the elastic element (5).

4. The door lock device for a dishwasher according to claim 3, characterized in that: The lock hook (2) is provided with a hook hole (6), the push rod is provided with a hook post (7), the elastic element (5) is provided with a first hook connection part (8) at one end and a second hook connection part (9) at the other end. The first hook connection part (8) is hooked to the hook hole (6), and the second hook connection part (9) is hooked to the hook post (7).

5. The door lock device for a dishwasher according to claim 4, characterized in that: The locking hook (2) is provided with a rotating shaft (10), and the push rod (17) is provided with a rotating hole (11). Under the elastic force of the elastic element (5), the locking hook (2) rotates elastically on the push rod (17) through the cooperation of the rotating shaft (10) and the rotating hole (11).

6. The door lock device for a dishwasher according to claim 4, characterized in that: The locking hook (2) is provided with a first movable shaft (12), and the push rod (17) is provided with a first slot (13). The first movable shaft (12) is movably disposed on the first slot (13). Under the elastic force of the elastic element (5), the locking hook (2) swings elastically on the push rod (17) through the cooperation of the first movable shaft (12) and the first slot (13).

7. The door lock device for a dishwasher according to claim 4, characterized in that: The locking hook (2) is provided with a second slot (14), and the push rod (17) is provided with a second movable shaft (15). The second movable shaft (15) is relatively movable on the second slot (14). Under the elastic force of the elastic element (5), the locking hook (2) swings elastically on the push rod (17) through the cooperation of the second movable shaft (15) and the second slot (14).

8. The door lock device for a dishwasher according to claim 1, characterized in that: The push rod (17) is provided with a receiving groove (16), and the locking hook (2) is elastically and movable on the receiving groove (16). Under the action of external force, the locking buckle (1) partially extends into the receiving groove (16) or moves out of the receiving groove (16).

9. The door lock device for a dishwasher according to claim 1, characterized in that: The latch (1) is connected to the door of the dishwasher; when the door is closed, the latch (1) is engaged with the hook (2) through the locking part and the hook (2) is triggered to move elastically; when the door is opened, the latch (1) is disengaged from the hook (2) through the locking part and the hook (2) is triggered to move elastically.

10. The door lock device for a dishwasher according to claim 9, characterized in that: The push rod (17) is set to move back and forth. When the push rod (17) moves back and forth, it pushes out or closes the door in sequence through the lock hook and the lock buckle.

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