Dish-washing machine capable of automatically opening door and preventing hands from being pinched

Abstract

A dish-washing machine capable of automatically opening a door and preventing hands from being pinched comprises a machine body of the dish-washing machine, a controller installed in the machine body, a door plate installed on the front side of the machine body, a telescopic mechanism installed on the top of the machine body, a lock catch arranged at the front end of the telescopic mechanism, and a lock body arranged on the door plate. After receiving a door opening instruction, the controller firstly controls the telescopic mechanism to drive the lock catch to retract, so that the lock cylinder in the lock body unlocks the lock catch, and the lock catch leaves the lock body; the damping force at the hinged position of the door plate is small, the door plate is pushed to be opened after the lock catch makes contact with the lock cylinder, and finally the controller controls the telescopic mechanism to retract, and the lock catch is reset to the initial position. According to the utility model, the door can be automatically opened by knocking the door plate or the control button, the lock catch is separated from the lock cylinder when the door is opened, the door plate is pulled in a more labor-saving manner by hand, and meanwhile, the hand injury caused by the fact that the door plate is pulled back by the lock catch accidentally and the door plate is suddenly closed when a user pulls the door by hand is avoided.

Description

Technical Field

[0001] The utility model relates to a dishwasher for automatic dishwashing, in particular to a dishwasher with a door that can automatically open to prevent hands from being pinched. Background Art

[0002] Current dishwashers use a telescopic mechanism to automatically open the door. When the telescopic mechanism is extended, the door panel is automatically pushed open. However, in order to ensure the dishwasher's tightness and safety during washing, it is usually necessary to install a lock on the telescopic mechanism and a lock body on the door panel. The lock body and the lock body cooperate to lock the door panel, so that the door panel can remain locked during operation. Due to the installation of the lock body and the lock body, when the door panel is opened to a half-open state, the door panel must be pulled hard by hand to disengage the lock body and the lock, and the door panel can be truly opened. When manually pulling the door panel, if a system bug or other accident occurs, the telescopic mechanism may retract and cause the door panel to close, which can easily injure the hand and pose a safety hazard.

[0003] The Chinese Patent Office published patent number 202321941890.7 on March 29, 2024, for a dishwasher that automatically opens its door by tapping. The device includes a housing, a door opening mechanism, and a door. The door is located at the front of the housing. The door opening mechanism is used to open the door. The door opening mechanism includes an ejector module and a knocking module. The ejector module is mounted at the top of the housing and has a push rod facing the door. The knocking module is mounted at the front of the door. When the knocking module is triggered, the ejector module pushes the door open. The dishwasher is equipped with a knocking module that can sense the vibration generated by knocking, thereby determining that the user needs to open the door. At this time, the ejector module pushes the door open, thereby realizing the door opening function. Using this method to open the door, the user can tap the door using the shaft, palm, back of the hand, or other parts of the body to open the door. A dishwasher with this structure requires a relatively large force to pull the door panel, and there is a risk of the door panel accidentally closing and injuring the hand, posing a safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to address the defects and shortcomings of the above-mentioned prior art and to provide people with a door lock mechanism for a dishwasher that is simple in structure, easy to operate, stable and reliable.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the dishwasher with automatic door opening and anti-pinch protection comprises a dishwasher body, a controller installed in the body, a door panel installed on the front side of the body, the lower edge of the door panel is hinged to the body, a telescopic mechanism is installed on the top of the body, and a lock catch is arranged at the front end of the telescopic mechanism, a lock body is provided on the door panel, and a lock core with a reset function is arranged in the lock body, when the lock catch and the lock body are relative or oppositely applied with force, a component force can be generated to move the lock core, when the component force overcomes the reset force of the lock core, the lock core retracts, and the lock catch can be inserted into or removed from the lock body; after receiving the door opening command, the controller first controls the telescopic mechanism to drive the lock catch to retract, so that the lock core in the lock body releases the lock of the lock catch, and the lock catch leaves the lock body; then controls the telescopic mechanism to extend forward, the damping force at the hinge of the door panel is small, and after the lock catch contacts the lock core, the door panel is pushed to open, and finally the controller controls the telescopic mechanism to retract, and the lock catch is restored to the initial position.

[0006] The telescopic mechanism includes a housing, in which a motor and a rack are installed. The motor and the rack are linked via a transmission gear set, and the lock is installed at the front end of the rack.

[0007] The lock body is provided with a slide groove, a lock core is installed in the slide groove, the top and the rear sides of the lock core are both inclined surfaces, and a compression spring is installed at the bottom of the lock core.

[0008] A knocking sensor module is installed on the door panel. When the knocking sensor module senses knocking vibration, it will send a door opening instruction to the controller.

[0009] A control button is provided on the front side of the door panel, and a door opening instruction can be issued to the controller through the control button.

[0010] This utility model allows the controller to automatically open the door by tapping the door panel or a control button. The controller receives the door opening command and controls the retractable mechanism to automatically open the door. To open the door, the lock catch is first disengaged from the lock cylinder, the door panel is then pushed out, and the lock catch is finally retracted. This allows the lock catch to be disengaged from the lock cylinder when the door panel is half-open, making manual pulling of the door panel much easier. This also prevents the user from accidentally pulling the door panel back, causing it to suddenly close and injure their hands. This device offers the advantages of a simple structure, easy operation, and reliable stability, promising good market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model in the closed state.

[0012] Figure 2 This is a cross-sectional view of the structure of the utility model in the closed state.

[0013] Figure 3 This is a schematic diagram of the structure of the utility model in the open door state.

[0014] Figure 4 This is a cross-sectional view of the structure of the utility model in the open door state.

[0015] Figure 5 This is a diagram of the door opening process controlled by the controller of the utility model.

[0016] Figure 6 This is a schematic diagram of the telescopic mechanism structure of the utility model.

[0017] Figure 7 This is a cross-sectional view of the lock body structure of the utility model. DETAILED DESCRIPTION

[0018] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the present invention is a dishwasher with automatic door opening and anti-pinch features. It includes a dishwasher body 30, a controller mounted within the body 30, and a door panel 20 mounted on the front of the body 30, hinged to the body 30 at its lower edge. A telescopic mechanism 10 is mounted on the top of the body 30, with a lock catch 40 disposed at the front end of the telescopic mechanism 10. A lock body 50 is disposed on the door panel 20, and a lock cylinder 51 with a reset function is disposed within the lock body 50. When the lock catch 40 and the lock body 50 are applied relative to or toward each other, a force component is generated that moves the lock cylinder 51. When this force component overcomes the reset force of the lock cylinder 51, the lock cylinder 51 retracts, allowing the lock catch 40 to be inserted into or removed from the lock body 50. When the lock catch 40 is inserted into the lock body 50, if a force component is generated that moves the lock cylinder 51, it pushes the lock cylinder 51 to move until the lock catch 40 slides over the lock cylinder 51, at which point the lock cylinder 51 resets and the lock catch 40 engages. If the force component that moves the lock cylinder 51 cannot be generated, the lock catch 40 and the lock cylinder 51 cannot be engaged. When the lock catch 40 leaves the lock body 50, if the force component that moves the lock cylinder 51 can be generated, the lock cylinder 51 will be pushed to move until the lock catch 40 slides out of the lock cylinder 51, and the lock cylinder 51 returns to its original position and releases the lock catch 40. If the force component that moves the lock cylinder 51 cannot be generated, the lock catch 40 and the lock cylinder 51 cannot be unlocked.

[0019] like Figure 5As shown, the door panel 20 is equipped with a knock sensor module 60. When the knock sensor module 60 senses knocking vibrations, it issues a door opening command to the controller. A control button is provided on the front side of the door panel 20, which can be used to issue the door opening command to the controller. Upon receiving the door opening command, the controller first controls the telescopic mechanism 10 to retract the lock catch 40, causing the lock cylinder 51 within the lock body 50 to release the lock catch 40, and the lock catch 40 to move away from the lock body 50. The telescopic mechanism 10 is then controlled to extend forward. Due to the low damping force at the hinge of the door panel 20, no force component is generated to move the lock cylinder 51 when the door is opened. After the lock catch 40 contacts the lock cylinder 51, it pushes the door panel 20 open. At this point, the door panel 20 is half-open, and the door panel 20 can be manually adjusted to adjust its opening angle. Finally, the controller controls the telescopic mechanism 10 to retract, returning the lock catch 40 to its initial position, preventing the lock catch 40 from obstructing the user's use.

[0020] like Figure 6 As shown, the telescopic mechanism 10 includes a housing, in which a motor 13 and a rack 11 are mounted. The motor 13 and the rack 11 are linked via a transmission gear set 12. The lock catch 40 is mounted on the front end of the rack 11. When the motor 13 rotates in the reverse direction, the rack 11 of the telescopic mechanism 10 retracts. When the motor 13 rotates in the forward direction, the rack 11 of the telescopic mechanism 10 extends.

[0021] like Figure 7 As shown, the lock body 50 is provided with a slide groove, in which a lock core 51 is installed. The top and the rear sides of the lock core 51 are both inclined surfaces, and a compression spring 52 is installed at the bottom of the lock core 51. Therefore, when the lock catch 40 is inserted into or removed from the lock body 50, a downward component of force is generated on the lock core 51, pushing the lock core 51 downward.

[0022] This utility model allows the controller to automatically open the door by tapping the door panel 20 or a control button. The controller receives the door opening command and controls the retractable mechanism 10 to automatically open the door. To open the door, the lock catch 40 is first disengaged from the lock cylinder 51, then the door panel 20 is pushed out, and finally the lock catch 40 is retracted and reset. This allows the lock catch 40 to be disengaged from the lock cylinder 51 when the door panel 20 is half-open, making manual pulling of the door panel 20 much easier. This also prevents the user from accidentally pulling the door panel 20 back by the lock catch 40, causing it to suddenly close and injure their hands. This device offers the advantages of simple structure, easy operation, stability, and reliability, and has promising market prospects.

Claims

1. A dishwasher with automatic door opening and anti-pinch function, comprising a dishwasher body, a controller installed in the body, a door panel installed on the front side of the body, the lower edge of the door panel being hinged to the body, a telescopic mechanism installed on the top of the body, a lock catch provided at the front end of the telescopic mechanism, a lock body provided on the door panel, a lock cylinder with a reset function provided in the lock body, a component force that moves the lock cylinder when the lock catch and the lock body apply force relative to or towards each other, and when the component force overcomes the reset force of the lock cylinder, the lock cylinder retracts, and the lock catch can be inserted into or removed from the lock body; characterized in that After receiving the door opening command, the controller first controls the telescopic mechanism to drive the lock catch to retract, so that the lock core in the lock body releases the lock catch and the lock catch leaves the lock body; then the telescopic mechanism is controlled to extend forward, the damping force at the door panel hinge is small, and after the lock catch contacts the lock core, it pushes the door panel to open. Finally, the controller controls the telescopic mechanism to retract, and the lock catch returns to its initial position.

2. The dishwasher with automatic door opening and anti-pinch function according to claim 1, characterized in that The telescopic mechanism includes a housing, in which a motor and a rack are installed. The motor and the rack are linked via a transmission gear set, and the lock is installed at the front end of the rack.

3. The dishwasher with automatic door opening and anti-pinch function according to claim 1, characterized in that The lock body is provided with a slide groove, a lock core is installed in the slide groove, the top and the rear sides of the lock core are both inclined surfaces, and a compression spring is installed at the bottom of the lock core.

4. The dishwasher with automatic door opening and anti-pinch function according to claim 1, 2 or 3, characterized in that A knocking sensor module is installed on the door panel. When the knocking sensor module senses knocking vibration, it will send a door opening instruction to the controller.

5. The dishwasher with automatic door opening and anti-pinch function according to claim 1, 2 or 3, characterized in that A control button is provided on the front side of the door panel, and a door opening instruction can be issued to the controller through the control button.

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