Door lock mechanism with ventilation door opening function

Abstract

The utility model discloses a door lock mechanism with a ventilation door opening function. The door lock mechanism comprises a bottom box, a driving assembly, a toothed plate, a gripper and a pushing sliding block. The bottom box is used for being installed in a machine box of the dish washing machine and provided with a sliding way and an unlocking opening. The unlocking opening is located in the side, facing the door body, of the bottom box, and the sliding way extends towards the unlocking opening along the bottom face of the bottom box. The toothed plate is erected on the sliding way, a pushing sliding block is installed at the end, facing the unlocking opening, of the toothed plate, the pushing sliding block is connected with one end of a gripper, and the other end of the gripper faces the unlocking opening and is used for clamping a spring bolt connected to a door body. A rack is arranged on one side of the toothed plate; the driving assembly is installed on the bottom box, and the output end of the driving assembly is meshed with a rack of the toothed plate. The grabhook is provided with a limiting section, when the grabhook is located at the ventilation station, the limiting section extends out of the unlocking opening and is located outside the bottom box, and the door body and the bottom box are blocked by the limiting section to form a ventilation gap. And hot air and water vapor in the box body can be quickly discharged, so that ventilation operation is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks of electrical appliances, in particular to a door lock mechanism with a ventilation door opening function. Background Art

[0002] With the improvement of living standards, dishwashers have gradually become a common appliance in the kitchen.

[0003] After washing the dishes, the dishwasher will enter the drying stage, turning the humid air in the washing chamber into dry air.

[0004] In the prior art, some use hot air drying technology, which replaces the humid air inside the dishwasher with external dry air through circulation exchange, but has high energy consumption.

[0005] Some dishwashers expel humid air from the inside by opening the door. After opening the door, the user needs to close the door manually. If the user forgets to close the door, foreign objects such as mosquitoes may enter the dishwasher, causing the tableware to be contaminated. Utility Model Content

[0006] In view of the above-mentioned shortcomings, the purpose of the utility model is to provide a door lock mechanism with a ventilation door opening function to solve the problem of humid air discharge inside the dishwasher and tableware contamination.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A door lock mechanism with a ventilation door opening function, comprising a base box, a driving assembly, a tooth plate, a gripper and a push slider;

[0009] The bottom box is used to be installed in the cabinet of the dishwasher, and the bottom box is provided with a slide and an unlocking opening; the unlocking opening is located on the side of the bottom box facing the door body, and the slide extends along the bottom surface of the bottom box toward the unlocking opening;

[0010] The tooth plate is slidably mounted on the slideway, and the push slider is installed at one end of the tooth plate facing the unlocking port, and the push slider is connected to one end of the claw, and the other end of the claw faces the unlocking port, and the other end of the claw is used to clamp a lock tongue connected to the door body;

[0011] A rack is provided on one side of the toothed plate; the driving assembly is installed on the bottom box, and the output end of the driving assembly is meshed with the rack of the toothed plate;

[0012] The gripper is provided with a limiting section, and the gripper includes at least two position states, which are a door closing position and a ventilation position respectively; when the gripper is in the ventilation position, the limiting section extends out through the unlocking port and is located outside the bottom box, and a ventilation gap is formed between the door body and the bottom box by blocking the limiting section; when the gripper is in the door closing position, the limiting section is located inside the bottom box.

[0013] Further, the gripper includes two gripping bars;

[0014] The two grab bars are arranged opposite to each other; one end of the grab bar is connected to the pushing slider, and the other end of the grab bar is provided with the limiting section and the arc-shaped protrusion in sequence, and the protrusions of the two opposite grab bars are used to grasp the locking tongue.

[0015] Furthermore, it also includes a tension slider and a tension spring;

[0016] The grab bar is provided with a slot on the outer side between the limiting section and the pushing slider;

[0017] The tension sliders are provided on both sides of the unlocking opening, and the side surfaces of the tension sliders are against the inner wall surface of the bottom box; one end of the tension spring is against the side wall surface of the bottom box; the other end of the tension spring extends into the tension slider and is against the inner wall of the tension slider close to the unlocking opening;

[0018] The gripper also includes the position status of the door opening station;

[0019] When the gripper is located at the door opening position, one end of the tension slider close to the unlocking opening abuts against the corresponding card slot.

[0020] Furthermore, it also includes a return spring;

[0021] Both sides of the push slider are provided with spring storage boxes;

[0022] The spring storage box extends in a length direction parallel to the tooth plate, and the two spring storage boxes are respectively located on two sides of the tooth plate;

[0023] A stopper is provided in the bottom box;

[0024] The stopper is close to the opening of the corresponding spring storage box facing the unlocking port; the return spring is located in the corresponding spring storage box, one end of the return spring abuts against the closed end of the spring storage box away from the unlocking port, and the other end of the return spring abuts against the corresponding stopper.

[0025] Specifically, the driving assembly includes a pushing gear, a driver and at least one transmission gear;

[0026] The output end of the driver is in transmission cooperation with the transmission gear, the transmission gear is in transmission cooperation with the push gear, and the push gear is meshed with the rack of the toothed plate.

[0027] Further, the outer peripheral surface of the pushing gear includes a first tooth surface and a second tooth surface;

[0028] The first tooth surface is meshed with the adjacent transmission gear, and the second tooth surface is meshed with the rack of the toothed plate;

[0029] The diameter of the circle where the first tooth surface is located is greater than the diameter of the circle where the second tooth surface is located.

[0030] Further, it also includes a trigger slider and a detection switch;

[0031] The trigger slider is installed on a side of the slideway away from the tooth plate, and the trigger slider extends along the length direction of the slideway;

[0032] The detection switch is installed on a side of the slideway away from the driving assembly;

[0033] The trigger end of the detection switch abuts against an end of the trigger slider away from the unlocking port; the other end of the trigger slider is close to the unlocking port and is used to abut against the lock tongue in the door closing state.

[0034] Furthermore, it also includes a cover body;

[0035] The cover body is used to close with the bottom box and cover the driving assembly, the tooth plate, the gripper and the pushing slide block.

[0036] The beneficial effects of the technical solution of the utility model are as follows: the door lock mechanism with the ventilation door opening function can, through the cooperation of the driving component with the tooth plate and the claw, expose the lock tongue at the unlocking port while keeping the claw clamping the lock tongue, and form a door gap between the door body and the cabinet of the dishwasher through the limiting of the limiting section to complete the ventilation operation; when the ventilation operation is completed, the driving component can be further driven to push the tooth plate to move in the opposite direction and make the limiting section located in the unlocking port, so that the lock tongue is reset to the door closing state, and the door gap between the door body and the cabinet of the dishwasher is closed to prevent foreign matter from entering the cabinet of the dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the door lock mechanism with ventilation door opening function of the utility model;

[0038] Figure 2 It is a schematic diagram of the installation structure of the tooth plate and the gripper in a ventilated state;

[0039] Figure 3It is a schematic diagram of the installation structure of the tooth plate and the gripper in the door opening state;

[0040] Figure 4 It is a schematic diagram of the installation structure of the tooth plate and the gripper in the closed state;

[0041] Among them: base box 1; driving assembly 2; tooth plate 3; gripper 4; pushing slider 5; tension slider 6; reset spring 7; tension spring 8; trigger slider 9; lock tongue 10; slideway 11; unlocking port 12; block 13; pushing gear 21; transmission gear 22; driver 23; grab rod 41; spring storage box 51; limiting section 410; protrusion 411; slot 412; first tooth surface 211; second tooth surface 212. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-4 The technical solution of the utility model is further illustrated by specific implementation methods.

[0043] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, which can be said to be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] A door lock mechanism with a ventilation door opening function, comprising a bottom box 1, a driving assembly 2, a tooth plate 3, a gripper 4 and a push slider 5;

[0046] The bottom box 1 is used to be installed in the cabinet of the dishwasher, and the bottom box 1 is provided with a slide 11 and an unlocking opening 12; the unlocking opening 12 is located on the side of the bottom box 1 facing the door body, and the slide 11 extends along the bottom surface of the bottom box 1 toward the unlocking opening 12;

[0047] The tooth plate 3 is slidably mounted on the slideway 11, and the push slider 5 is installed at one end of the tooth plate 3 facing the unlocking opening 12, and the push slider 5 is connected to one end of the gripper 4, and the other end of the gripper 4 faces the unlocking opening 12, and the other end of the gripper 4 is used to clamp the lock tongue 10 connected to the door body;

[0048] A rack is provided on one side of the tooth plate 3; the driving assembly 2 is installed on the bottom box 1, and the output end of the driving assembly 2 is meshed with the rack of the tooth plate 3;

[0049] The gripper 4 is provided with a limiting section 410, and the gripper 4 includes at least two position states, which are a door closing position and a ventilation position respectively; when the gripper 4 is in the ventilation position, the limiting section 410 extends out through the unlocking port 12 and is located outside the bottom box 1, and a ventilation gap is formed between the door body and the bottom box 1 by blocking the limiting section 410; when the gripper 4 is in the door closing position, the limiting section 410 is located inside the bottom box 1.

[0050] like Figure 1 and Figure 2 The gripper 4 in the door lock mechanism of the utility model is in the ventilation position. Figure 4 The gripper 4 in the door lock mechanism of the utility model is in the door closing position. The gripper 4 in the door closing position clamps the lock tongue 10 and makes the lock tongue 10 partially accommodated in the unlocking opening 12, so that the gap between the door body and the cabinet of the dishwasher is closed.

[0051] When the dishwasher finishes cleaning the dishes with detergent and rinses the dishes with water from the spray arm, the tooth plate 3 can be pushed by the drive assembly 2 to move along the slide 11 toward the unlocking opening 12. While keeping the gripper 4 and the lock tongue 10 in the clamping state, the lock tongue 10 is exposed at the unlocking opening 12, and a gap is left between the lock tongue 10 and the unlocking opening 12 by the limiting segment 410, so that a door gap is formed between the door body and the cabinet of the dishwasher, so that the hot air and water vapor in the cabinet can be quickly discharged to complete the ventilation operation; when the set ventilation time is reached, the drive assembly 2 is started again, and the tooth plate 3 is pushed to reverse, so that the tooth plate 3 moves inward along the slide 11, and the limiting segment 410 is located in the unlocking opening 12 so that the lock tongue 10 is reset to the closed state, the gap between the lock tongue 10 and the unlocking opening 12 is closed, and the door gap between the door body and the cabinet of the dishwasher is closed to prevent foreign matter from entering the cabinet of the dishwasher.

[0052] Further, the gripper 4 includes two gripping rods 41;

[0053] The two grab bars 41 are arranged opposite to each other; one end of the grab bar 41 is connected to the push slider 5, and the other end of the grab bar 41 is provided with the limiting section 410 and the arc-shaped protrusion 411 in sequence, and the protrusions 411 of the two opposite grab bars 41 are used to grasp the lock tongue 10.

[0054] like Figure 1 , Figure 2 and Figure 4As shown, the two grab bars 41 are arranged opposite to each other. When in the door closing position or the ventilation position, the lock tongue 10 is clamped by the rod bodies of the two grab bars 41, and the lock tongue 10 is prevented from sliding out from between the rod bodies of the two grab bars 41 by the approach of the two relative protrusions 411, so that the lock tongue 10 is in a gripping state.

[0055] Furthermore, it also includes a tension slider 6 and a tension spring 8;

[0056] The grab bar 41 is provided with a slot 412 on the outer side between the limiting section 410 and the pushing slider 5;

[0057] The tension sliders 6 are provided on both sides of the unlocking opening 12, and the side surfaces of the tension sliders 6 are against the inner wall surface of the bottom box 1; one end of the tension spring 8 is against the side wall surface of the bottom box 1; the other end of the tension spring 8 extends into the tension slider 6 and is against the inner wall of the tension slider 6 close to the unlocking opening 12;

[0058] The gripper 4 also includes the position state of the door opening position;

[0059] When the gripper 4 is located at the door opening position, one end of the tension slider 6 close to the unlocking opening 12 abuts against the corresponding slot 412 .

[0060] like Figure 3 As shown, when the door is opened, one end of the tension slider 6 is set to slide into and abut against the corresponding slot 412, so that the protrusions 411 of the two grab bars 41 can be relatively separated, so that the claw 4 is separated from the lock tongue 10, so that the door body can rotate through the shaft connected to the other side of the box body under the action of its own gravity, thereby opening the door gap, so that the user can open the door body and take out the dishes in the dishwasher.

[0061] Furthermore, it also includes a return spring 7;

[0062] Both sides of the push slider 5 are provided with a spring storage box 51;

[0063] The spring storage box 51 extends in a length direction parallel to the tooth plate 3, and the two spring storage boxes 51 are respectively located on both sides of the tooth plate 3;

[0064] A stopper 13 is provided in the bottom box 1;

[0065] The stopper 13 is close to the opening of the corresponding spring storage box 51 facing the unlocking port 12; the return spring 7 is located in the corresponding spring storage box 51, one end of the return spring 7 abuts against the closed end of the spring storage box 51 away from the unlocking port 12, and the other end of the return spring 7 abuts against the corresponding stopper 13.

[0066] like Figure 1 and Figure 3 As shown, when the driving assembly 2 pushes the claw 4 to the door opening position through the tooth plate 3 and the pushing slider 5, the claw 4 is separated from the lock tongue 10. Under the elastic force of the reset spring 7, the reset spring 7 pushes the spring storage box 51 and drives the pushing slider 5 and the tooth plate 3 to move away from the lock port 12, so that the limit section 410 is located in the unlocking port 12, and the pushing slider 5 and the tooth plate 3 are reset.

[0067] Specifically, the driving assembly 2 includes a pushing gear 21, a driver 23 and at least one transmission gear 22;

[0068] The output end of the driver 23 is in transmission cooperation with the transmission gear 22 , the transmission gear 22 is in transmission cooperation with the push gear 21 , and the push gear 21 is meshed with the rack of the toothed plate 3 .

[0069] like Figure 2 As shown, the number of transmission gears 22 and the corresponding transmission ratio can be configured according to the distance between the driver 23 and the toothed plate 3 and the torque for pushing the toothed plate 3, so that the driver 23 can push the toothed plate 3 through the transmission gear 22 and the pushing gear 21.

[0070] Furthermore, the outer peripheral surface of the pushing gear 21 includes a first tooth surface 211 and a second tooth surface 212;

[0071] The first tooth surface 211 meshes with the adjacent transmission gear 22, and the second tooth surface 212 meshes with the rack of the toothed plate 3;

[0072] The diameter of the circle where the first tooth surface 211 is located is greater than the diameter of the circle where the second tooth surface 212 is located.

[0073] like Figure 2 In the embodiment shown, the outer peripheral surface of the driving gear 21 is set to two tooth surfaces with different diameters. By replacing the driving gear 21 with different diameter ratios, the thrust torque of the driving component 2 on the tooth plate 3 can also be adjusted.

[0074] Furthermore, it also includes a trigger slider 9 and a detection switch;

[0075] The trigger slider 9 is installed on a side of the slideway 11 away from the tooth plate 3, and the trigger slider 9 extends along the length direction of the slideway 11;

[0076] The detection switch is installed on a side of the slideway 11 away from the driving assembly 2;

[0077] The trigger end of the detection switch abuts against the end of the trigger slider 9 away from the unlocking port 12; the other end of the trigger slider 9 is close to the unlocking port 12 and is used to abut against the lock tongue 10 in the closed state.

[0078] like Figure 4 In the embodiment shown, when the set ventilation time is reached, the drive assembly 2 is started again and pushes the tooth plate 3 to move in the opposite direction, so that the tooth plate 3 moves inward along the slide 11 and the lock tongue 10 is reset to the closed state, and the lock tongue 10 extends into the unlocking port 12 and abuts against the other end of the trigger slider 9, so that the trigger slider 9 triggers the detection switch, and the detection switch sends a signal, so that the dishwasher displays the information that the ventilation operation has been completed on the display screen through the control module, or the dishwasher sends a reminder message to the user through the control module, so as to inform the user that the dishes in the dishwasher can be opened for use.

[0079] Furthermore, it also includes a cover body;

[0080] The cover body is used to close with the bottom box 1 and cover the driving assembly 2, the tooth plate 3, the gripper 4 and the pushing slider 5.

[0081] By covering the cover body with the bottom box 1, the drive component 2, the tooth plate 3, the gripper 4 and the push slider 5 can be protected to prevent the drive component 2, the tooth plate 3, the gripper 4 and the push slider 5 from being touched during operation and becoming loose or malfunctioning.

[0082] In summary, if Figure 1-4 In the embodiment of the utility model shown, the door lock mechanism with the ventilation door opening function can make the lock tongue 10 exposed at the unlocking opening 12 by the cooperation of the driving component 2 with the tooth plate 3 and the claw 4, while keeping the claw 4 in the clamping state of the lock tongue 10, and form a door gap between the door body and the cabinet of the dishwasher through the limiting of the limiting section 410 to complete the ventilation operation; when the ventilation operation is completed, the driving component 2 can also be used to push the tooth plate 3 to reverse and make the limiting section 410 located in the unlocking opening 12, so that the lock tongue 10 is reset to the door closing state, and the door gap between the door body and the cabinet of the dishwasher is closed to prevent foreign matter from entering the cabinet of the dishwasher.

[0083] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A door lock mechanism with ventilation door opening function, characterized in that: It includes a bottom box, a driving assembly, a tooth plate, a gripper and a push slider; The bottom box is used to be installed in the cabinet of the dishwasher, and the bottom box is provided with a slide and an unlocking opening; the unlocking opening is located on the side of the bottom box facing the door body, and the slide extends along the bottom surface of the bottom box toward the unlocking opening; The tooth plate is slidably mounted on the slideway, and the push slider is installed at one end of the tooth plate facing the unlocking port, and the push slider is connected to one end of the claw, and the other end of the claw faces the unlocking port, and the other end of the claw is used to clamp a lock tongue connected to the door body; A rack is provided on one side of the toothed plate; the driving assembly is installed on the bottom box, and the output end of the driving assembly is meshed with the rack of the toothed plate; The gripper is provided with a limiting section, and the gripper includes at least two position states, which are a door closing position and a ventilation position respectively; when the gripper is in the ventilation position, the limiting section extends out through the unlocking port and is located outside the bottom box, and a ventilation gap is formed between the door body and the bottom box by blocking the limiting section; when the gripper is in the door closing position, the limiting section is located inside the bottom box.

2. The door lock mechanism with ventilation door opening function according to claim 1, characterized in that: The gripper includes two gripping bars; The two grab bars are arranged opposite to each other; one end of the grab bar is connected to the pushing slider, and the other end of the grab bar is provided with the limiting section and the arc-shaped protrusion in sequence, and the protrusions of the two opposite grab bars are used to grasp the locking tongue.

3. The door lock mechanism with ventilation door opening function according to claim 2, characterized in that: Also included is a tension slider and a tension spring; The grab bar is provided with a slot on the outer side between the limit section and the push slider; The tension sliders are provided on both sides of the unlocking opening, and the side surfaces of the tension sliders are against the inner wall surface of the bottom box; one end of the tension spring is against the side wall surface of the bottom box; the other end of the tension spring extends into the tension slider and is against the inner wall of the tension slider close to the unlocking opening; The gripper also includes the position status of the door opening station; When the gripper is located at the door opening position, one end of the tension slider close to the unlocking opening abuts against the corresponding card slot.

4. The door lock mechanism with ventilation door opening function according to claim 3, characterized in that: Also included is a return spring; Both sides of the push slider are provided with spring storage boxes; The spring storage box extends in a length direction parallel to the tooth plate, and the two spring storage boxes are respectively located on both sides of the tooth plate; A stopper is provided in the bottom box; The stopper is close to the opening of the corresponding spring storage box facing the unlocking port; the return spring is located in the corresponding spring storage box, one end of the return spring abuts against the closed end of the spring storage box away from the unlocking port, and the other end of the return spring abuts against the corresponding stopper.

5. The door lock mechanism with ventilation door opening function according to claim 1, characterized in that: The drive assembly includes a push gear, a driver and at least one transmission gear; The output end of the driver is in transmission cooperation with the transmission gear, the transmission gear is in transmission cooperation with the push gear, and the push gear is meshed with the rack of the toothed plate.

6. The door lock mechanism with ventilation door opening function according to claim 5, characterized in that: The outer peripheral surface of the pushing gear includes a first tooth surface and a second tooth surface; The first tooth surface is meshed with the adjacent transmission gear, and the second tooth surface is meshed with the rack of the toothed plate; The diameter of the circle where the first tooth surface is located is greater than the diameter of the circle where the second tooth surface is located.

7. The door lock mechanism with ventilation door opening function according to claim 1, characterized in that: Also included are a trigger slide and a detection switch; The trigger slider is installed on a side of the slideway away from the tooth plate, and the trigger slider extends along the length direction of the slideway; The detection switch is installed on a side of the slideway away from the driving assembly; The trigger end of the detection switch abuts against an end of the trigger slider away from the unlocking port; the other end of the trigger slider is close to the unlocking port and is used to abut against the lock tongue in the door closing state.

8. The door lock mechanism with ventilation door opening function according to claim 1, characterized in that: Also includes a cover body; The cover body is used to close with the bottom box and cover the driving assembly, the tooth plate, the gripper and the pushing slide block.

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