Door lock assembly for dish washing machine and dish washing machine

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to a dish-washing machine and a door lock assembly for the dish-washing machine. The problems that in the prior art, the temperature in the dish-washing machine is high, and a user is prone to being scalded when a door body is opened at will are solved. Therefore, the door lock assembly for the dish-washing machine comprises a movable piece and a fixed piece, the movable piece comprises an extension arm and a buckle, the buckle is arranged at the end of the extension arm, the fixed piece is provided with a clamping groove, the extension arm expands or contracts according to temperature changes, and when the extension arm reaches the preset temperature, the clamping groove is formed in the fixed piece. The extension arm drives the buckle to move to the clamping groove through the deformation effect, so that the buckle and the clamping groove are connected in a clamped mode. Based on the structural arrangement, when the internal temperature of the dish-washing machine rises, the extension arms are heated to expand and extend, so that the buckles reach the clamping grooves, the dish-washing machine is locked through the clamping effect of the buckles and the clamping grooves, and a user is prevented from being scalded due to unintentional door opening.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, and specifically provides a door lock assembly for a dishwasher and the dishwasher. Background Art

[0002] Currently, in the restaurant industry and some households, the use of dishwashers can significantly improve dishwashing efficiency and reduce manual labor. After rinsing the dishes, the dishwasher enters the drying phase, which primarily dries the washed dishes to prevent bacterial growth. Therefore, the dryness of the dishes after drying has become a key indicator of dishwasher performance.

[0003] In the prior art, dishwasher door locks often use a diamond-shaped fastener secured to the door housing by a tension spring and an arc-shaped arm. This type of door lock only secures the door and does not actually lock it. During the dishwasher's wash cycle, the temperature inside the dishwasher is high, and opening the door without permission can easily cause burns.

[0004] Therefore, the art needs a door lock assembly for a dishwasher and a dishwasher to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, that is, in the prior art, the temperature inside the dishwasher is high and opening the door at will can easily cause burns to the user.

[0006] In a first aspect, the present invention provides a door lock assembly for a dishwasher, wherein the door lock assembly comprises a moving part and a fixed part.

[0007] The moving part includes an extension arm and a buckle, wherein the buckle is provided at the end of the extension arm.

[0008] The fixing member is provided with a card slot,

[0009] The extension arm expands or contracts due to temperature changes.

[0010] When the extension arm reaches a preset temperature, the extension arm drives the buckle to move to the position of the slot through deformation, so that the buckle and the slot are engaged.

[0011] In the specific embodiment of the door lock assembly for the dishwasher, the buckle is an elastic member.

[0012] The vertical distance between the buckle and the bottom of the fixing member is greater than the height of the buckle.

[0013] In the specific embodiment of the door lock assembly for a dishwasher, the buckle includes a bottom surface and a hook portion.

[0014] The bottom surface is connected to the extension arm,

[0015] The hook portion has an arc-shaped surface, and the hook portion is arranged toward a side away from the fixing member.

[0016] In the above-mentioned embodiment of the door lock assembly for a dishwasher, when the extension arm expands due to temperature changes, the buckle extends in the horizontal direction.

[0017] In the above embodiment of the door lock assembly for a dishwasher, the buckle expands or contracts due to temperature changes.

[0018] When the buckle reaches a preset temperature, the vertical distance between the extension arm and the slot is smaller than the height of the hook.

[0019] When the buckle has not reached the preset temperature, the vertical distance between the extension arm and the slot is greater than or equal to the height of the hook.

[0020] In a specific embodiment of the door lock assembly for a dishwasher, the extension arm and the buckle are integrally formed.

[0021] In a specific embodiment of the door lock assembly for a dishwasher, the door lock assembly further includes a pressing member.

[0022] The pressing member includes a connecting portion and a button, wherein the button is provided at a first end of the connecting portion, and the fixing member is connected to a second end of the connecting portion.

[0023] The connecting portion is configured such that, when the button is pressed downward, the first end descends and the second end rises.

[0024] In a specific embodiment of the door lock assembly for a dishwasher, the depressible length of the button is greater than the height of the buckle.

[0025] In a specific embodiment of the door lock assembly for a dishwasher, the door lock assembly further includes a cover plate and a spring.

[0026] The cover plate is arranged on the upper side of the fixing member,

[0027] The spring is connected between the fixing member and the cover plate.

[0028] When adopting the above-mentioned technical solution, the door lock assembly for a dishwasher provided by the present invention includes a movable member and a fixed member. The movable member includes an extension arm and a buckle. The buckle is disposed at the end of the extension arm, and the fixed member is provided with a slot. The extension arm expands or contracts in response to temperature changes. When the extension arm reaches a preset temperature, the extension arm deforms to drive the buckle to move to the slot, causing the buckle and the slot to engage. Based on the above-mentioned structural arrangement, when the temperature inside the dishwasher rises, the extension arm expands and extends due to the heat, causing the buckle to reach the slot. The engagement between the buckle and the slot locks the dishwasher, preventing burns caused by the user accidentally opening the door.

[0029] Furthermore, the door lock assembly for the dishwasher provided by the present invention defines the buckle as an elastic member, so that the buckle can be engaged with and separated from the slot by elasticity.

[0030] Furthermore, the door lock assembly for a dishwasher provided by the present invention defines a buckle including a bottom surface and a hook portion, wherein the bottom surface is used to connect with the extension arm, and the hook portion is used to engage with the card slot.

[0031] Furthermore, the door lock assembly for a dishwasher provided by the present invention defines that when the extension arm expands due to temperature changes, the buckle extends horizontally, and when the extension arm reaches the target position, the buckle and the slot can be engaged.

[0032] Furthermore, the door lock assembly for the dishwasher provided by the present invention limits the expansion or contraction of the buckle due to temperature changes, so as to ensure that the buckle can be engaged with the buckle when the target temperature is reached and separated from the buckle when the target temperature is not reached, thereby achieving accurate locking or unlocking through the internal temperature of the dishwasher.

[0033] Furthermore, the door lock assembly for the dishwasher provided by the present invention defines an extension arm and a buckle as being integrally formed, thereby reducing the manufacturing process and lowering the difficulty of assembly.

[0034] Furthermore, the door lock assembly for the dishwasher provided by the present invention defines a pressing piece, and when the user presses the pressing button, the second end of the connecting part is lifted, at which time the slot and the buckle are separated, thereby realizing emergency unlocking of the door lock.

[0035] Furthermore, the door lock assembly for a dishwasher provided by the present invention limits the depressible length of the button to be greater than the height of the buckle, so as to ensure that the buckle can pop out of the slot.

[0036] Furthermore, the door lock assembly for the dishwasher provided by the present invention defines a cover plate and a spring. When the buckle pops out, the user stops pressing the button, and the elastic action of the spring can drive the second end of the connecting part to rebound to its original position.

[0037] On the other hand, the present invention further provides a dishwasher, wherein the dishwasher door body and the door lock assembly for the dishwasher according to the above embodiment are provided.

[0038] The door lock assembly for the dishwasher is disposed on the door body and is configured to control the locking or opening of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0040] Figure 1 It is a schematic diagram of the overall structure of a door lock assembly for a dishwasher provided by the present invention.

[0041] Reference numerals:

[0042] 1. Moving part; 11. Extension arm; 12. Buckle; 121. Bottom surface; 122. Hook; 2. Fixing part; 21. Slot; 3. Pressing part; 31. Connecting part; 311. First end; 312. Second end; 32. Button; 4. Cover; 5. Spring. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific applications. For example, although this specific embodiment is described in conjunction with the situation where the door lock assembly is applied to a dishwasher, the door lock assembly of the present invention can obviously also be used in other scenarios. Such changes in the application scenario do not deviate from the basic principles of the present invention and fall within the scope of protection of the present invention.

[0044] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] Currently, in the catering industry and some households, the use of dishwashers can greatly improve the efficiency of dishwashing and reduce manual labor. After rinsing the dishes, the dishwasher will enter the drying stage, which mainly dries the washed dishes to prevent bacterial growth. Therefore, the dryness of the dishes after the dishwasher dries has become one of the important indicators for measuring dishwasher performance. In the existing technology, dishwasher door locks mostly use a tension spring and an arc-shaped arm to fix the diamond-shaped fixing on the door shell. This type of door lock only has a fixing function and cannot actually lock the door body. During the washing process of the dishwasher, the temperature inside the dishwasher is high, and opening the door body at will can easily cause burns to the user.

[0046] First, see Figure 1 , Figure 1 This is a schematic diagram of the overall structure of the door lock assembly for the dishwasher provided by the present invention. Figure 1 As shown, the present invention provides a door lock assembly for a dishwasher, comprising a movable member 1 and a fixed member 2. The movable member 1 comprises an extension arm 11 and a buckle 12. The buckle 12 is disposed at the end of the extension arm 11. The fixed member 2 is provided with a slot 21. The extension arm 11 expands or contracts due to temperature changes. When the extension arm 11 reaches a preset temperature, the extension arm 11 deforms to drive the buckle 12 to move to the position of the slot 21, causing the buckle 12 and the slot 21 to engage. Based on the above structural arrangement, when the temperature inside the dishwasher rises, the extension arm 11 expands and extends due to the heat, causing the buckle 12 to reach the position of the slot 21. The engagement between the buckle 12 and the slot 21 locks the dishwasher, preventing burns caused by the user accidentally opening the door. It should be noted that the present invention does not impose any restrictions on the specific structure and location of the extension arm 11, buckle 12, and fixed member 2. Technicians can freely set them according to actual usage requirements.

[0047] It can be understood that in order to achieve the technical effect of the extension arm 11 expanding or contracting due to temperature changes, the material of the extension arm 11 should be heat-deformable material, and the relative position between the buckle 12 and the slot 21 should be determined according to the length of the extension arm 11 when it reaches the preset temperature, thereby ensuring that when the extension arm 11 reaches the preset temperature, the extension arm 11 drives the buckle 12 to move to the slot 21 position through deformation.

[0048] In this preferred embodiment, the buckle 12 is an elastic member so that the buckle 12 can be engaged and disengaged with the slot 21 through elasticity. Furthermore, the vertical distance between the buckle 12 and the bottom of the fixing member 2 is greater than the height of the buckle 12. Specifically, when the temperature inside the dishwasher rises, the extension arm 11 drives the buckle 12 to move horizontally. During the driving process of the extension arm 11, the buckle 12 is squeezed by the elastic force because the vertical distance between the buckle 12 and the bottom of the fixing member 2 is greater than the height of the buckle 12. When the extension arm 11 drives the buckle 12 to the position of the slot 21, the concave space within the slot 21 causes the buckle 12 to rebound, thereby achieving the engagement between the buckle 12 and the slot 21.

[0049] In this preferred embodiment, the buckle 12 includes a bottom surface 121 and a hook portion 122. The bottom surface 121 is connected to the extension arm 11 and is configured to follow the extension or retraction of the extension arm 11. The hook portion 122 has an arcuate surface and is positioned toward the side away from the fixing member 2. It is understood that when the buckle 12 moves toward the fixing member 2, the arcuate surface of the hook portion 122 first contacts the fixing member 2. The provision of the arcuate surface facilitates the entire buckle 12 to enter the slot 21, reducing friction. At the same time, when the hook portion 122 fully enters the slot 21, it engages with the slot 21, thereby locking the door body.

[0050] In this preferred embodiment, when the extension arm 11 expands due to temperature changes, the buckle 12 extends horizontally. When the extension arm 11 reaches the target position, the buckle 12 and the slot 21 are able to engage. It will be understood that if the extension direction of the buckle 12 is at a certain angle to the horizontal, then when the extension arm 11 reaches the target position, the distance between the buckle 12 and the slot 21 will vary due to the length of the extension arm 11, and the engagement between the buckle 12 and the slot may not be guaranteed.

[0051] In this preferred embodiment, the buckle 12 expands or contracts due to temperature changes. When the buckle 12 reaches a preset temperature, the vertical distance between the extension arm 11 and the slot 21 is less than the height of the hook 122. When the buckle 12 does not reach the preset temperature, the vertical distance between the extension arm 11 and the slot 21 is greater than or equal to the height of the hook 122. This arrangement can further ensure the engagement and disengagement of the buckle 12 and the slot 21. Specifically, when the dishwasher reaches a preset temperature, the buckle 12 enters the slot 21. At this time, since the vertical distance between the extension arm 11 and the slot 21 is less than the height of the hook 122, the hook 122 is squeezed downward to prevent the buckle 12 and the slot 21 from slipping, thereby locking the dishwasher. When the dishwasher is lower than the preset temperature, since the vertical distance between the extension arm 11 and the slot 21 is greater than or equal to the height of the hook 122, the hook 122 rebounds and the buckle 12 is no longer in contact with the slot 21. At this time, as the extension arm 11 retracts, the dishwasher can be unlocked.

[0052] It is understood that in order to achieve the technical effect of the buckle 12 expanding or contracting in response to temperature changes, the buckle 12 should be made of a heat-deformable material, and the vertical distance between the extension arm 11 and the slot 21 should be determined based on the size of the buckle 12 during temperature changes. Optionally, the extension arm 11 and the buckle 12 can be integrally formed to simplify the manufacturing process and reduce assembly difficulty.

[0053] In this preferred embodiment, see Figure 1 The door lock assembly provided by the present invention also includes a pressing member 3, which includes a connecting portion 31 and a button 32. The button 32 is provided at the first end 311 of the connecting portion 31. The fixing member 2 is connected to the second end 312 of the connecting portion 31. The connecting portion 31 is configured so that when the button 32 is pressed downward, the first end 311 descends and the second end 312 rises. When the user presses the button 32, the second end 312 of the connecting portion 31 is lifted. At this time, the vertical distance between the extension arm 11 and the card slot 21 is greater than the height of the hook portion 122, thereby causing the card slot 21 and the buckle to separate, thereby achieving emergency unlocking of the door lock. It should be noted that the present invention does not impose any restrictions on the specific structure of the connecting portion 31 and the specific setting position of the button 32. Technicians can set them according to actual usage requirements. For example, the button 32 can be set at the top or rear end of the dishwasher to prevent children from accidentally touching the button 32 and opening the door body, causing burns.

[0054] In this preferred embodiment, the pressable length of the button 32 is greater than the height of the buckle 12, so as to ensure that when the button 32 is pressed to the bottom, the vertical distance between the extension arm 11 and the slot 21 must be greater than the height of the hook 122, thereby ensuring that the buckle 12 can pop out of the slot 21, thereby unlocking the door body.

[0055] In this preferred embodiment, the door lock assembly provided by the present invention also includes a cover plate 4 and a spring 5. The cover plate 4 is arranged on the upper side of the fixing member 2, and the spring 5 is connected between the fixing member 2 and the cover plate 4, wherein the spring 5 is used to realize the reset of the connecting part 31. When the buckle 12 pops out, the user stops pressing the button 32. At this time, the elastic action of the spring 5 can drive the second end 312 of the connecting part 31 to rebound to its original position; the cover plate 4 is used to fix the spring 5 to prevent the spring 5 from rebounding and being lost after being compressed.

[0056] The present invention also provides a dishwasher comprising a door and the dishwasher door lock assembly described in the above embodiment. The dishwasher door lock assembly is disposed on the door and is configured to control the locking or unlocking of the door. Based on the above structural arrangement, when the temperature inside the dishwasher rises, the extension arm 11 expands and extends due to the heat, causing the buckle 12 to reach the position of the locking slot 21. The engagement between the buckle 12 and the locking slot 21 locks the dishwasher, preventing burns caused by the user accidentally opening the door.

[0057] It should be noted that the above-mentioned embodiment is only used to illustrate the principle of the present invention and is not intended to limit the scope of protection of the present invention. Without departing from the principle of the present invention, those skilled in the art can adjust the above-mentioned structure so that the present invention can be applied to more specific application scenarios.

[0058] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A door lock assembly for a dishwasher, characterized in that: The door lock assembly includes a moving part and a fixed part. The moving part includes an extension arm and a buckle, wherein the buckle is provided at the end of the extension arm. The fixing member is provided with a card slot, The extension arm expands or contracts due to temperature changes. When the extension arm reaches a preset temperature, the extension arm drives the buckle to move to the position of the slot through deformation, so that the buckle and the slot are engaged.

2. The door lock assembly for a dishwasher according to claim 1, characterized in that: The buckle is an elastic member, The vertical distance between the buckle and the bottom of the fixing member is greater than the height of the buckle.

3. The door lock assembly for a dishwasher according to claim 2, characterized in that: The buckle includes a bottom surface and a hook portion, The bottom surface is connected to the extension arm, The hook portion has an arc-shaped surface, and the hook portion is arranged toward a side away from the fixing member.

4. The door lock assembly for a dishwasher according to claim 3, characterized in that: When the extension arm expands due to temperature changes, the buckle extends in the horizontal direction.

5. The door lock assembly for a dishwasher according to claim 4, characterized in that: The buckle expands or contracts due to temperature changes. When the buckle reaches a preset temperature, the vertical distance between the extension arm and the slot is smaller than the height of the hook. When the buckle does not reach a preset temperature, the vertical distance between the extension arm and the locking slot is greater than or equal to the height of the hook portion.

6. The door lock assembly for a dishwasher according to any one of claims 1 to 5, characterized in that: The extension arm and the buckle are integrally formed.

7. The door lock assembly for a dishwasher according to claim 1, characterized in that: The door lock assembly further includes a pressing member, The pressing member includes a connecting portion and a button, wherein the button is provided at a first end of the connecting portion, and the fixing member is connected to a second end of the connecting portion. The connecting portion is configured such that, when the button is pressed downward, the first end descends and the second end rises.

8. The door lock assembly for a dishwasher according to claim 7, characterized in that: The pressable length of the button is greater than the height of the buckle.

9. The door lock assembly for a dishwasher according to claim 7, characterized in that: The door lock assembly also includes a cover plate and a spring, The cover plate is arranged on the upper side of the fixing member, The spring is connected between the fixing member and the cover plate.

10. A dishwasher, characterized in that: The dishwasher comprises a door body and a door lock assembly for a dishwasher according to any one of claims 1 to 9. The door lock assembly for the dishwasher is disposed on the door body and is configured to control the locking or opening of the door body.

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