Dish-washing machine capable of automatically opening and closing door

Abstract

The invention provides an automatic door opening and closing dishwasher which comprises a cabinet body, a cabinet door and an automatic locking and unlocking device, and the cabinet body is provided with a cleaning chamber capable of entering through an inlet; the cabinet door is mounted on the cabinet body and has a locking state for locking the inlet and an opening state for allowing the inlet to be communicated with the outside; the automatic locking and unlocking device comprises a door bolt, a door lock shell, a telescopic assembly and a locking assembly, the door bolt is fixed to the cabinet door, the door lock shell is fixed to the cabinet body and provided with a notch, the telescopic assembly is arranged in the door lock shell and provided with a telescopic end capable of stretching out or retracting in relative to the notch, and the locking assembly is arranged in the door lock shell and provided with a locking opening. The locking assembly is connected with the telescopic end and movably connected with the door bolt. According to the invention, unlocking and locking actions can be automatically completed, so that better use experience is provided.

Description

Technical Field

[0001] The invention relates to the field of household appliances, in particular to an automatic door opening and closing dishwasher. Background Art

[0002] Some household appliances usually have an appliance body, such as a dishwasher, in which a product treatment chamber is formed. A door is mounted on the appliance body so as to be rotatable about a horizontal axis; the door is used to close the access opening to the product treatment chamber. During operation of the household appliance, the door should be securely locked so that the product being treated in the product treatment chamber does not escape from the machine and possibly endanger people standing nearby. Dishwashers are therefore usually equipped with an automatic door opening and closing mechanism so as to be able to keep the door closed.

[0003] For example, patent CN201310356336.7 provides a dishwasher, comprising a main body, having a washing chamber accessible through an entrance, a door, which is mounted on the main body and used to lock the entrance, wherein the door is defined by a door inner wall on the door side facing the washing chamber, the door inner wall provides a sealing abutment surface for a sealing structure mounted on the main body, a door latch, having a latch head fixedly mounted on the door relative to the door and a locking unit arranged on the main body, the locking unit having two latch arms that can move toward each other, the latch arms holding the latch head on both sides when the door is closed, wherein the latch head collides with the latch arm when the door is closed and the latch arm is squeezed open from a relatively static state against elastic force, wherein the latch head rises from the surface contour of the door inner wall, the latch arm comprises a free arm end, the free arm end collides with the latch head and is squeezed open when the door is closed, the main body comprises an end wall, a main body cover plate is suspended above the end wall and the locking unit is mounted behind the end wall, the free arm end protrudes from the end wall through a recess in the end wall, and the recess is open toward the bottom of the main body.

[0004] The above-mentioned dishwasher has the following problem: when washing dishes, its door can open automatically to dissipate the heat and water vapor generated by washing dishes, but after the heat and water vapor are dissipated, the door can no longer close automatically, causing external dust and foreign matter to easily enter the dishwasher, affecting the cleaning effect. Summary of the invention

[0005] In view of this, it is necessary to provide a dishwasher with automatic door opening and closing, which can realize automatic door opening and closing actions, open the door after washing dishes, dissipate the heat and water vapor generated by washing dishes, and close the door after the heat and water vapor are dissipated.

[0006] The present invention provides a dishwasher with automatic door opening and closing, comprising: a door bolt, a cabinet having a cleaning chamber accessible through the access opening; a cabinet door mounted on the cabinet body, having a locked state for locking the entrance and an open state for allowing the entrance to communicate with the outside; and An automatic switch lock device includes a door bolt, a door lock shell, a telescopic component and a locking component. The door bolt is fixed on the cabinet door, the door lock shell is fixed on the cabinet body and has a notch, the telescopic component is arranged in the door lock shell, and has a telescopic end that can extend or retract relative to the notch, and the locking component is connected to the telescopic end and is movably connected to the door bolt.

[0007] Optionally, the locking assembly includes a locking shell, a limiting member, and two latch arms that can move relative to each other and embrace the door bolt, the locking shell is connected to the telescopic end, one end of the latch arm is hinged to the locking shell, and both ends of the limiting member are respectively connected to the other end of the latch arm to apply a force to the latch arm to limit its opposite movement.

[0008] Optionally, the telescopic assembly includes a motor, a pushing rack and a gear set, the motor is fixed in the door lock housing, the motor is meshed with the gear set, the pushing rack is movably arranged in the door lock housing and one end is connected to the locking assembly, and the pushing rack is meshed with the gear set.

[0009] Optionally, one end of the rack is hinged to the locking shell, and a rotation gap is provided between the locking shell and the rack so that the locking shell can be rotated to be inclined relative to a horizontal plane.

[0010] Optionally, it also includes a pair of latch arm pressing assemblies, which are arranged in the door lock shell, and pressing through holes are respectively opened on both sides of the lock shell. When the lock shell is located in the door lock shell, the latch arm pressing assembly partially extends into the pressing through hole to press the latch arm.

[0011] Optionally, the latch arm pressing assembly includes a pressing rod, a pressing roller and a pressing spring, one end of the pressing rod is hinged to the inner wall of the door lock shell, the other end of the pressing rod corresponds to the pressing through hole, the pressing roller is fixed to the free end of the pressing rod, one end of the pressing spring is fixed to the inner wall of the door lock shell, and the other end is fixed to the pressing rod, when the locking shell is located in the door lock shell, the pressing spring applies a force to the pressing rod to squeeze the latch arm, so that the latch arm moves relatively to embrace the bolt body.

[0012] Optionally, the door bolt includes a carrier plate and a bolt body, the bolt body is fixed on the carrier plate, and the latch arm can embrace the bolt body from two sides to limit the movement of the bolt body relative to the door lock housing.

[0013] Optionally, the door bolt further includes an upper cover, which is disposed on the top of the bolt body and an edge of the upper cover protrudes relative to an edge of the bolt body.

[0014] Optionally, the locking portion further includes a trigger component and an electric switch, wherein the electric switch is used to detect the status of the bolt assembly and the latch arm, and the trigger component is movably disposed in the shell, and the trigger component can trigger the electric switch when the latch body is in a locked position.

[0015] Optionally, a control unit is further included, wherein the control unit is electrically connected to the motor and can control the motor.

[0016] The beneficial effects of the present invention are: In the present invention, a cabinet is provided, which has a cleaning chamber accessible through an entrance, a cabinet door, which is installed on the cabinet and has a locked state for locking the entrance and an open state for allowing the entrance to communicate with the outside, and an automatic switch lock device, the automatic switch lock device includes a door bolt, a door lock shell, a telescopic component and a locking component, the door bolt is fixed to the cabinet door, the door lock shell is fixed to the cabinet and has a notch, the telescopic component is arranged in the door lock shell, and has a telescopic end that can extend or retract relative to the notch, and the locking component is connected to the telescopic end and is movably connected to the door bolt. When the door needs to be opened, the telescopic component pushes the locking component out of the door lock housing, and the door bolt moves under the drive of the locking component, thereby driving the cabinet door to move in a direction away from the cabinet body to open the door. When the door needs to be closed, the door bolt is pushed by manpower to be inserted into the locking component located outside the door lock housing at this time, and the telescopic component pulls the locking component and the door bolt back into the door lock housing, thereby driving the cabinet door to move in a direction close to the cabinet body until the cabinet door fits with the cabinet body, thereby completing the door closing action. The solution of the present invention can automatically complete the door opening and closing actions to provide a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the automatic door opening and closing dishwasher in the present invention; Figure 2 for Figure 1 An enlarged structural diagram of the automatic switch lock device in the middle; Figure 3 for Figure 1 A schematic diagram of the structure of the automatic switch lock device; Figure 4 for Figure 1 Schematic diagram of the internal structure of the automatic switch lock device; Figure 5 for Figure 1 A schematic structural diagram of an automatic switch lock device in another embodiment; Figure 6 for Figure 1 A schematic structural diagram of another state of the automatic switch lock device in another embodiment; Figure 7 for Figure 1 A schematic diagram of the internal structure of an automatic switch lock device in another embodiment; Figure 8 for Figure 1 A schematic diagram of the internal structure of the automatic switch lock device in another state in another embodiment; Fig. 9 for Figure 5 Schematic diagram of the structure of the middle door bolt; Fig.10 It is a schematic diagram of the assembly structure of the trigger component and the electric switch in another embodiment; Wherein: 100-automatic switch lock device, 1-door bolt, 11-carrier plate, 12-bolt body, 13-upper cover, 2-door lock housing, 21-notch, 3-telescopic component, 31-motor, 31a-reduction motor, 32-pushing rack, 32a-rack, 321-hinge end, 322-abutment end, 33-gear set, 33a-gear, 4-locking component, 41-locking housing, 411-locking notch, 412-pressing through hole, 42-limiting member, 43-latch arm, 5-latch arm pressing component, 51-pressing rod, 52-pressing roller, 53-pressing spring, 6-trigger component, 61-trigger rod, 62-trigger member, 7-electric switch; 200-cabinet body, 300-cabinet door. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0020] like Figure 1-10As shown, an embodiment of the present invention provides an automatic door opening and closing dishwasher, which includes: an automatic opening and closing lock device 100, a cabinet 200 and a cabinet door 300, the cabinet 200 has a cleaning chamber that can be entered through an entrance, the cabinet door 300 is installed on the cabinet 200, and has a locked state for locking the entrance and an open state for allowing the entrance to communicate with the outside, the automatic opening and closing lock device 100 includes a bolt 1, a door lock shell 2, a telescopic component 3 and a locking component 4, the bolt 1 is fixed on the cabinet door 300, the door lock shell 2 is fixed on the cabinet 200 and is provided with a notch 21, the telescopic component 3 is arranged in the door lock shell 2, and has a telescopic end that can extend or retract relative to the notch, and the locking component 4 is connected to the telescopic end and is movably connected to the bolt 1.

[0021] In the present invention, a cabinet 200 is provided, which has a cleaning chamber that can be approached through an entrance, a cabinet door 300 is installed on the main body, and has a locked state for locking the entrance and an open state for allowing the entrance to communicate with the outside, and an automatic switch lock device 100, the automatic switch lock device 100 includes a door bolt 1, a door lock shell 2, a telescopic component 3 and a locking component 4, the door bolt 1 is fixed on the cabinet door 300, the door lock shell 2 is fixed on the cabinet 200 and is provided with a notch 21, the telescopic component 3 is arranged in the locking shell 2, and has a telescopic end that can extend or retract relative to the notch, and the locking component 4 is connected to the telescopic end and is movably connected to the door bolt 1. When the door needs to be opened, the telescopic component 3 pushes the locking component 4 out of the door lock housing 2, and the bolt 1 moves under the drive of the locking component 4, thereby driving the cabinet door 300 to move in a direction away from the cabinet 200 to open the door. When the door needs to be closed, the bolt 1 is manually pushed to snap into the locking component 4 located outside the door lock housing 2, and the telescopic component 3 pulls the locking component 4 and the bolt 1 back into the door lock housing 2, thereby driving the cabinet door 300 to move in a direction close to the cabinet 200 until the cabinet door 300 fits with the cabinet 200, thereby completing the door closing action. The solution of the present invention can automatically complete the door opening and closing actions to provide a better user experience.

[0022] like Figure 7As shown, specifically, the bolt 1 includes a carrier plate 11 and a bolt body 12, the bolt body 12 is fixed to the carrier plate 11, and the latch arm 43 can embrace the bolt body 12 from both sides to limit the bolt body 12 from moving relative to the door lock housing 2. When in use, the carrier plate 11 is fixed to one component, the door lock housing 2 is fixed to another component, and the latch arm 43 embraces the bolt body 12 to lock the two components. When the external pulling force on the bolt body 12 is greater than the locking pulling force between the latch arms 43, the two components can be relatively separated.

[0023] The plug body 12 may be in various shapes. In some feasible embodiments, the plug body 12 is in a rectangular parallelepiped shape. In some feasible embodiments, the plug body 12 is in a triangular column shape. In this embodiment, the plug body 12 is in a spindle column shape.

[0024] Furthermore, the door bolt 1 further comprises an upper cover 13, which is disposed on the top of the bolt body 12 and the edge of the upper cover 13 protrudes relative to the edge of the bolt body 12. The purpose of such a configuration is that the portion of the upper cover 13 protruding relative to the bolt body 12 can press the latch arm 43 when the latch arm 43 embraces the bolt body 12, thereby preventing the latch arm 43 from being separated from the bolt body 12.

[0025] Specifically, the telescopic assembly 3 only needs to be able to push the locking assembly 4 to move relative to the door lock housing 2. In some other feasible embodiments, the telescopic assembly 3 includes a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to the locking assembly 4, and the telescopic end of the telescopic cylinder can drive the locking assembly 4 to extend or retract relative to the notch 21.

[0026] In this embodiment, if Figure 4 As shown, the telescopic assembly 3 includes a motor 31, a push rack 32 and a gear set 33. The motor 31 is fixed in the door lock housing 2, and the motor 31 is meshed with the gear set 33. The push rack 32 is movably arranged in the door lock housing 2, and one end is connected to the locking assembly 4, and the push rack 32 is meshed with the gear set 33. The motor 31 drives the gear set 33 to rotate, and then drives the push rack 32 to move relative to the door lock housing 2, so as to achieve the technical effect that the push rack 32 extends or retracts relative to the notch 21.

[0027] In some other possible embodiments, such as Figure 7-8As shown, the telescopic assembly 3 includes a reduction motor 31a, a rack 32a, and a gear 33a. The reduction motor 31a is fixed in the door lock housing 2, and the gear 33a is fixed on the rotating end of the reduction motor 31a. The rack 32a is movably embedded in the door lock housing 2, and one end of the rack 32a is connected to the locking assembly 4, and the rack 32a is meshed with the gear 33a. When the reduction motor 31a rotates forward, the gear 33a rotates, pushing the rack 32a to move relative to the door lock housing 2, and pushing the locking assembly 4 out of the notch 21; when the reduction motor 31a rotates reversely, the gear 33a rotates, pushing the rack 32a to move relative to the door lock housing 2, and pulling the locking assembly 4 into the notch 21.

[0028] Furthermore, one end of the rack 32a is hinged to the locking assembly 4, and there is a rotation gap between the locking assembly 4 and the rack 32a, so that the locking assembly 4 can be rotated to be inclined relative to the horizontal plane. The purpose of this design is that the movement trajectory of the bolt body 12 is arc-shaped, and the locking assembly 4 is inclined at an angle under the action of gravity after extending out of the notch 21, which can match the movement trajectory of the bolt body 12, so that the locking assembly 4 is easy to combine with the bolt body 12.

[0029] Furthermore, a hinged end 321 is formed on one end of the rack 32a close to the locking assembly 4, and is hinged to the locking assembly 4. The end of the rack 32a extends to form an abutting end 322 that can abut against the bottom of the locking assembly 4. The thickness between the hinged end 321 and the abutting end 322 is greater than the thickness of the locking assembly 4. When the locking assembly 4 extends out of the notch 21, under the action of gravity, the locking assembly 4 rotates relative to the hinged end 321 until it abuts against the abutting end 322. At this time, the locking assembly 4 is inclined relative to the horizontal plane, which can match the movement trajectory of the bolt body 12, so that the locking assembly 4 is easy to be combined with the bolt body 12.

[0030] Furthermore, a hinged end 321 is formed on one end of the rack 32a close to the locking assembly 4, and is hinged to the locking assembly 4. The end of the rack 32a extends to form an abutting end 322 that can abut against the bottom of the locking assembly 4. The thickness between the hinged end 321 and the abutting end 322 is greater than the thickness of the locking assembly 4. When the locking assembly 4 extends out of the notch 21, under the action of gravity, the locking assembly 4 rotates relative to the hinged end 321 until it abuts against the abutting end 322. At this time, the locking assembly 4 is inclined relative to the horizontal plane, which can match the movement trajectory of the bolt body 12, so that the locking assembly 4 is easy to be combined with the bolt body 12.

[0031] Specifically, the locking assembly 4 includes a locking shell 41, a limiting member 42, and two latch arms 43 that can move relative to each other and embrace the door bolt 1. The locking shell 41 is connected to the telescopic end, one end of the latch arm 43 is hinged to the locking shell 41, and both ends of the limiting member 42 are respectively connected to the other end of the latch arm 43 to apply a force to the latch arm 43 to limit its opposite movement.

[0032] Furthermore, a cavity is formed in the locking shell 41 , the limiting member 42 and the latch arm 43 are arranged in the cavity, a locking notch 411 communicating with the cavity is opened at the end of the locking shell 41 , and the end of the latch arm 43 is located at the locking notch 411 .

[0033] Furthermore, the limiting member 42 is a spring, both ends of which are respectively fixed to the latch arms 43 , and the spring provides a force to prevent the latch arms 43 from moving away from each other.

[0034] Furthermore, one end of the latch arm 43 is hinged inside the locking housing 41 , and the other end of the latch arm 43 is a free end bent into a shape matching one side of the bolt body 12 , and the middle of the latch arm 43 is connected to the limiting member 42 .

[0035] Specifically, it also includes a pair of latch arm pressing assemblies 5, which are arranged in the door lock shell 2, and pressing through holes 412 are respectively opened on both sides of the locking shell 41. When the locking shell 41 is located in the door lock shell 2, the latch arm pressing assembly 5 partially extends into the pressing through hole 412 to press the latch arm 43.

[0036] Furthermore, the latch arm pressing assembly 5 includes a pressing rod 51, a pressing roller 52 and a pressing spring 53, one end of the pressing rod 51 is hinged to the inner wall of the door lock shell 2, and the other end of the pressing rod 51 corresponds to the pressing through hole 412, the pressing roller 52 is fixed to the free end of the pressing rod 51, one end of the pressing spring 53 is fixed to the inner wall of the door lock shell 2, and the other end is fixed to the pressing rod 51, when the locking shell 41 is located in the door lock shell 2, the pressing spring 53 applies a force to the pressing rod 51 to squeeze the latch arm 43, so that the latch arm 43 moves relatively and embraces the bolt body 12.

[0037] The advantage of the latch arm pressing assembly 5 is that, in the prior art, a thicker spring is often used to connect the latch arm, and the tension on the latch arm is single and linear, while in the present application, three springs (a limiting member 42 and two pressing springs 53) are used. When the locking shell 41 is located outside the door lock shell 2, only the limiting member 42 acts on the latch arm 43, and the force is small, which is convenient for the user to apply force to pull the bolt body 12 out of the latch arm 43 (unlocking action) or push the bolt body 12 between the latch arms 43 (locking action). When the locking shell 41 retracts into the door lock shell 2, the pressing spring 53 applies force to the latch arm 43 through the pressing rod 51, and the latch arm 43 holds the bolt body 12 tightly to prevent it from falling out.

[0038] Specifically, Figure 8 As shown, it also includes a trigger component 6 and an electric switch 7. The electric switch 7 is used to detect the status of the door bolt 1 and the locking assembly 4. The trigger component 6 is movably arranged in the door lock housing 2. The trigger component 6 can trigger the electric switch 7 when the bolt body 12 is in the door lock housing 2.

[0039] Furthermore, a button is provided on the surface of the electric switch 7 , the bolt body 12 is located in the door lock housing 2 , and the trigger component 6 can press the button to trigger the electric switch 7 .

[0040] Furthermore, the trigger component 6 includes a trigger rod 61, a trigger spring, and a trigger member 62. The trigger rod 61 is movably arranged in the door lock housing 2. One end of the trigger spring is fixed to the inner wall of the housing 24, and the other end is fixed to the trigger rod 61. The trigger spring allows the trigger rod 61 to be elastically connected to the door lock housing 2. One end of the trigger rod 61 has an abutting end that abuts against the bolt body 12. The trigger member 62 is pivotally connected to the door lock housing 2. One end of the trigger member 62 is hinged to the trigger rod 61, and the other end is a free end. When the bolt body 11 abuts against the trigger rod 61, the trigger rod 61 is pushed to move, thereby causing the trigger member 62 to rotate relative to the door lock housing 2, so that the trigger member 62 is out of contact with the button on the surface of the electric switch 7 to trigger the electric switch 7.

[0041] Specifically, it also includes a control unit, which is electrically connected to the motor 31 , and can control the motor 31 to rotate forward, reverse, and stop, thereby realizing automatic opening and closing operations on the cabinet door 300 .

[0042] Specifically, a reed switch is also included, which is electrically connected to the motor 31 and the control unit, and is disposed in the bolt 1. A magnetic object is disposed at the end of the latch arm 43. When the cabinet door 300 is manually opened, the bolt 1 is disengaged from the latch arm 43, the reed switch signal in the bolt 1 is disconnected, and the control unit sends a signal to start the motor 31 to reverse, pushing the rack 32 back to the electric suction door standby position.

[0043] When closing the door manually, the cabinet door 300 is manually closed lightly, the latch arm 43 is engaged with the door bolt 1, the reed switch signal built into the door bolt 1 is connected, and the control unit sends a signal to start the motor 31 to reverse, push the rack 32 back to the electric suction door standby position, and the cabinet door 300 of the dishwasher is closed and locked.

[0044] During use, when the door needs to be opened automatically, when the motor 31 rotates forward, the gear set 33 rotates, pushing the pushing rack 32 to move relative to the door lock housing 2, pushing the locking housing 41 out of the notch 21, and the latch arm pressing assembly 5 gradually disengages from the latch arm 43, and the force of the latch arm 43 surrounding the bolt body 12 gradually decreases. The bolt body 12 also moves relative to the door lock housing 2 under the drive of the locking housing 41. When the locking housing 41 reaches its maximum extended distance, the latch arm pressing assembly 5 completely disengages from the latch arm 43, and the latch arm 43 only surrounds the bolt body 12 under the action of the limiting member 42. At this time, a gap is formed between the bolt body 12 and the door lock housing 2, and the door bolt 1 moves under the drive of the locking assembly 4, thereby driving the cabinet door 300 to move in a direction away from the cabinet body 200 to complete the door opening action.

[0045] When in the open state, when the user needs to further open the cabinet door 300, a pulling force can be applied to the cabinet door 300. At this time, the latch arm 43 only embraces the bolt body 12 under the action of the limiting member 42, and only a small pulling force is required to disengage the bolt body 12 from the latch arm 43, so that the cabinet door 300 is further opened, and the user can take and put dishes through the fully open entrance; when the user finishes taking and putting dishes, the cabinet door 300 can be pushed toward the cabinet body 200, so that the latch arm 43 embraces the bolt body 12 again, and the latter stage of the door closing process can be completed by the automatic opening and closing lock device 100.

[0046] When the door needs to be closed automatically, when the motor 31 reverses, the gear set 33 rotates, pushing the pushing rack 32 to move relative to the door lock housing 2, pulling the locking housing 41 into the notch 21, and the latch arm pressing assembly 5 gradually contacts the latch arm 43, and the force of the latch arm 43 surrounding the bolt body 12 gradually increases. The bolt body 12 also moves relative to the door lock housing 2 under the drive of the locking housing 41. When the locking housing 41 is completely retracted into the door lock housing 2, the latch arm pressing assembly 5 contacts the latch arm 43, and the latch arm 43 surrounds the bolt body 12 under the action of the limiting member 42 and the pressing spring 53. At this time, the bolt body 12 is located in the door lock housing 2, driving the cabinet door 300 to move in the direction close to the cabinet body 200 until the cabinet door 300 is in contact with the cabinet body 200, thereby completing the door closing action.

[0047] When a foreign object is inserted between the cabinet door 300 and the cabinet body 200 when closing the door, the cabinet door 300 will be blocked from moving toward the cabinet body 200. The cabinet door 300 and the door bolt 1 are blocked from moving by the foreign object, but the motor 31 drives the locking assembly 4 to still move into the cabinet body 200. Since the latch arms 43 are connected by springs, the latch arms 43 will be separated from the door bolt 1 under the action of tension, and no tension will be applied to the door bolt 1 and the cabinet door 300. On the one hand, it protects the motor 31, and on the other hand, it protects objects that accidentally intervene, such as human hands, and can prevent hand pinching.

[0048] The beneficial effects of the present invention are: In the present invention, a cabinet is provided, which has a cleaning chamber that can be approached through an entrance, a cabinet door that is installed on the main body and has a locked state for locking the entrance and an open state for allowing the entrance to communicate with the outside, and an automatic switch lock device, the automatic switch lock device includes a door bolt, a door lock shell, a telescopic component and a locking component, the door bolt is fixed to the cabinet door, the door lock shell is fixed to the cabinet and has a notch, the telescopic component is arranged in the locking shell, and has a telescopic end that can extend or retract relative to the notch, and the locking component is connected to the telescopic end and is movably connected to the door bolt. When the door needs to be opened, the telescopic component pushes the locking component out of the door lock housing, and the door bolt moves under the drive of the locking component, thereby driving the cabinet door to move in a direction away from the cabinet body to open the door. When the door needs to be closed, the door bolt is pushed by manpower to be inserted into the locking component located outside the door lock housing at this time, and the telescopic component pulls the locking component and the door bolt back into the door lock housing, thereby driving the cabinet door to move in a direction close to the cabinet body until the cabinet door fits with the cabinet body, thereby completing the door closing action. The solution of the present invention can automatically complete the door opening and closing actions to provide a better user experience.

[0049] The above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A dishwasher with automatic door opening and closing, characterized in that: include: a cabinet having a cleaning chamber accessible through the access opening; A cabinet door, which is mounted on the cabinet body and has a locked state for locking the entrance and an open state for allowing the entrance to communicate with the outside; as well as An automatic switch lock device includes a door bolt, a door lock shell, a telescopic component and a locking component. The door bolt is fixed on the cabinet door, the door lock shell is fixed on the cabinet body and has a notch, the telescopic component is arranged in the door lock shell, and has a telescopic end that can extend or retract relative to the notch, and the locking component is connected to the telescopic end and is movably connected to the door bolt.

2. The automatic door opening and closing dishwasher according to claim 1, characterized in that: The locking assembly includes a locking shell, a limiting member, and two latch arms that can move relative to each other and embrace the door bolt. The locking shell is connected to the telescopic end, one end of the latch arm is hinged to the locking shell, and both ends of the limiting member are respectively connected to the other end of the latch arm to apply a force to the latch arm to limit its opposite movement.

3. The automatic door opening and closing dishwasher according to claim 2, characterized in that: The telescopic assembly includes a motor, a pushing rack and a gear set. The motor is fixed in the door lock housing, the motor is meshed with the gear set, the pushing rack is movably arranged in the door lock housing, and one end is connected to the locking assembly, and the pushing rack is meshed with the gear set.

4. The automatic door opening and closing dishwasher according to claim 3, characterized in that: One end of the rack is hinged to the locking housing, and a rotation gap is provided between the locking housing and the rack so that the locking housing can be rotated to be inclined relative to a horizontal plane.

5. The automatic door opening and closing dishwasher according to claim 4, characterized in that: It also includes a pair of latch arm pressing assemblies, which are arranged in the door lock shell, and pressing through holes are respectively opened on both sides of the lock shell. When the lock shell is located in the door lock shell, the latch arm pressing assembly partially extends into the pressing through holes to press the latch arm.

6. The automatic door opening and closing dishwasher according to claim 5, characterized in that: The latch arm pressing assembly includes a pressing rod, a pressing roller and a pressing spring, one end of the pressing rod is hinged to the inner wall of the door lock shell, the other end of the pressing rod corresponds to the pressing through hole, the pressing roller is fixed to the free end of the pressing rod, one end of the pressing spring is fixed to the inner wall of the door lock shell, and the other end is fixed to the pressing rod. When the locking shell is located in the door lock shell, the pressing spring applies a force to the pressing rod to squeeze the latch arm, so that the latch arm moves relatively and embraces the bolt body.

7. The automatic door opening and closing dishwasher according to claim 2, characterized in that: The door bolt comprises a carrier plate and a bolt body, wherein the bolt body is fixed on the carrier plate, and the latch arm can embrace the bolt body from two sides to limit the bolt body from moving relative to the door lock housing.

8. The automatic door opening and closing dishwasher according to claim 7, characterized in that: The door bolt further comprises an upper cover, which is arranged on the top of the bolt body and the edge of the upper cover protrudes relative to the edge of the bolt body.

9. The automatic door opening and closing dishwasher according to claim 7, characterized in that: The locking portion also includes a trigger component and an electric switch, wherein the electric switch is used to detect the status of the bolt assembly and the latch arm, and the trigger component is movably arranged in the housing, and the trigger component can trigger the electric switch when the latch body is in the locked position.

10. The automatic door opening and closing dishwasher according to claim 8, characterized in that: The device further comprises a control unit, which is electrically connected to the motor and can control the motor.

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