Door lock assembly of automatic sliding door of dish washing machine

Abstract

The invention relates to the technical field of opening and closing doors of dish-washing machines, and provides a door lock assembly of an automatic sliding door of a dish-washing machine. The driver drives the lock rod to do axial reciprocating motion in the door opening and closing direction of the dish washing machine so that the lock rod can stretch out and be closed on the door lock assembly. The lock rod is closed on the door lock assembly, and the dish-washing machine door body is buckled with and separated from the lock rod under the action of external force, so that the dish-washing machine door body is opened and closed on the dish-washing machine; the dish-washing machine door body is buckled with the lock rod, and the lock rod drives the dish-washing machine door body to be automatically opened and closed on the dish-washing machine through the driver; the lock rod extends out of the door lock assembly through the driver, and the dish washing machine door body is buckled with and separated from the lock rod under the action of external force. The driver drives the dish-washing machine door body buckled with the lock rod to move to the corresponding position in the door opening direction, the lock rod stretches out of the door lock assembly and keeps buckled with the dish-washing machine door body, a ventilation gap communicated with the outside is formed between the dish-washing machine door body and the dish-washing machine inner container, and the dish-washing machine is in a ventilation state.

Description

Technical Field

[0001] The invention relates to the technical field of dishwasher sliding doors, and in particular to a door lock assembly of an automatic sliding door of a dishwasher. Background Art

[0002] Existing dishwashers have a hot air drying function. When there is too much gas in the dishwasher tank, the dishwasher discharges excess gas through a pressure relief valve or other exhaust mechanisms (such as exhaust holes); and existing dishwashers generally only have the function of pushing open the dishwasher door body alone, and the function is single; for example, a dishwasher with an automatic door opening device disclosed in Chinese Patent No. ZL202010995846.9 includes a dishwasher body and a door body rotatably connected to the dishwasher body. The automatic door opening device includes a door lock installed on the door body, a door hook installed on the dishwasher body and engaged with the door lock, and a pushing device installed on the dishwasher body; the pushing device includes a motor, a reduction mechanism driven by the motor, and a push rod driven by the reduction mechanism to apply thrust to the door body. Summary of the invention

[0003] The present invention provides a door lock assembly for an automatic sliding door of a dishwasher. The door lock assembly has an automatic opening and closing function: that is, the dishwasher door body is automatically opened to allow the dishwasher to ventilate and release excess gas in the inner tank. During the automatic opening and closing process of the dishwasher door body, the lock catch on the dishwasher door body is not separated from the lock rod of the door lock assembly. Therefore, when closing the door, the lock rod of the door lock assembly can pull the lock catch to reset and close the dishwasher door body. The door lock assembly has a manual opening and closing function, that is, the dishwasher door body can be manually opened and manually closed. There are two application scenarios for manual opening and closing: 1) There is a door handle on the dishwasher door. In this state, the lock rod does not need to extend from the door lock assembly. The lock rod is closed on the door lock assembly, and the dishwasher door can be manually closed and opened by the door handle.

[0004] 2) There is no door handle on the dishwasher door, or the door handle is embedded on the inner side of the dishwasher door. Since there is no door handle on the dishwasher door, the locking rod extends out of the door lock assembly along the ventilation state and door opening direction of the dishwasher. A space for the user to hold the dishwasher door can be formed between the inner side of the dishwasher door and the dishwasher. Only then can the user hold the dishwasher door, which makes it easier to open the dishwasher door.

[0005] A door lock assembly for an automatic sliding door of a dishwasher designed for this purpose includes a lock rod arranged on the door lock assembly and used to buckle with the dishwasher door body, and a driver drivingly connected to the lock rod; The lock rod is axially movable on the door lock assembly; the driver drives the lock rod to perform axial reciprocating motion along the direction of opening and closing the dishwasher door, so that the lock rod extends and closes on the door lock assembly; The lock rod is axially movable on the door lock assembly; the driver drives the lock rod to perform axial reciprocating motion along the direction of opening and closing the dishwasher door, so that the lock rod extends and closes on the door lock assembly; The locking rod is closed on the door lock assembly and is buckled with the dishwasher door body. The dishwasher door body is separated from the locking rod under the action of external force, so that the dishwasher door body can be opened and closed on the dishwasher; The dishwasher door is buckled with the locking rod, and the locking rod drives the dishwasher door to make axial reciprocating motion through the driver, so that the dishwasher door is automatically opened and closed on the dishwasher; The locking rod is buckled with the dishwasher door, and the locking rod is extended from the door lock assembly through the driver, and the dishwasher door is separated from the locking rod under the action of external force, so that the dishwasher door can be opened and closed on the dishwasher after the locking rod is extended; The driver drives the dishwasher door body engaged with the locking rod to move to a corresponding position along the door opening direction, the locking rod extends out of the door lock assembly and remains engaged with the dishwasher door body, a ventilation gap connected to the outside is formed between the dishwasher door body and the dishwasher inner tank, and the dishwasher is in a ventilation state.

[0006] The locking rod and the dishwasher door body engaged with the locking rod are moved in the door opening direction by the driver. After the locking rod is extended out of the door lock assembly to the corresponding position, a handle-free operating space for operating the dishwasher door body to disengage from the locking rod is formed between the inner side of the dishwasher door body and the dishwasher; alternatively, a door handle for operating the dishwasher door body to disengage from the locking rod is provided on the outer side of the dishwasher door body.

[0007] The lock rod is closed on the door lock assembly, and a door handle for operating the dishwasher door body to engage and disengage the lock rod is provided on the dishwasher door body.

[0008] The door lock assembly is provided with a switch component for detecting the position of the lock rod; The switch assembly includes a reset switch, a maximum travel switch and a gate control switch; The lock rod triggers the reset switch, the maximum travel switch and the door control switch during the axial reciprocating motion along the door opening and closing.

[0009] An elastic block assembly is provided between the corresponding lock rod and the door control switch on the door lock assembly, and the elastic block assembly is elastically and movably arranged on the door lock assembly; The locking rod is provided with a slider matched with the elastic block assembly, and the slider is movably arranged on the locking rod; The lock rod is closed on the door lock assembly and buckled with the dishwasher door body, the slider is limited between the inner side of the dishwasher door body and the elastic block assembly, and the slider triggers the door control switch to detect whether the dishwasher door body is in a closed state by squeezing the elastic block assembly.

[0010] The lock rod is provided with an elastic buckle assembly for buckling with the dishwasher door body; The elastic buckle assembly comprises a lock hook which is elastically rotatably arranged on the lock rod, and a lock buckle which cooperates with the lock hook is arranged on the door body of the dishwasher; The lock buckle is buckled with the lock hook, and the dishwasher door body is buckled and connected with the lock rod; The lock catch is disengaged from the lock hook, and the dishwasher door body is separated from the lock rod.

[0011] The door lock assembly is provided with a transmission assembly, which is arranged between the driver and the lock rod, the drive shaft of the driver is in transmission connection with the input end of the transmission assembly, and the output end of the transmission assembly is in transmission connection with the lock rod; The transmission assembly is a gear transmission group, a pulley transmission group, a screw nut transmission group or a worm gear transmission group.

[0012] The transmission assembly is provided with an anti-collision transmission structure connected to the lock rod, the anti-collision transmission structure includes a first transmission member connected to the gear transmission transmission group, and a second transmission member connected to the lock rod, the first transmission member and the second transmission member are elastically buckled together; the dishwasher door body is buckled on the lock rod under the action of external force, and the external force acting on the dishwasher door body is greater than the elastic buckling force of the first transmission member and the second transmission member, so as to trigger the elastic separation of the first transmission member and the second transmission member, so as to prevent the external force acting on the dishwasher door body from being further transmitted to the lock rod and the transmission assembly connected to the lock rod.

[0013] An axial snap-fitting portion is provided between the first transmission member and the second transmission member, and the first transmission member and the second transmission member are snap-fitted together through the axial snap-fitting portion under the action of elastic force; when the first transmission member and the second transmission member are separated under the action of external force, the first transmission member axially disengages from the second transmission member along the axial snap-fitting portion.

[0014] The door lock assembly includes a first shell and a second shell, an installation space for installing a lock rod is formed between the first shell and the second shell, and a transmission assembly, an elastic block assembly and a switch assembly are arranged on the installation space; The driver is installed on the inside or outside of the installation space.

[0015] The beneficial technical effects of the present invention are as follows: The door lock assembly has an automatic opening and closing function: that is, it automatically opens the dishwasher door to allow ventilation and release excess gas in the inner tank. During the automatic opening and closing process of the dishwasher door, the lock on the dishwasher door is not separated from the lock rod of the door lock assembly, so when closing the door, the lock rod of the door lock assembly can pull the lock to reset and close the dishwasher door; the door lock assembly has a manual opening and closing function, that is, the dishwasher door can be manually opened and closed; There are two application scenarios for manual opening and closing: 1) There is a door handle on the dishwasher door. In this state, the lock rod does not need to extend from the door lock assembly. The lock rod is closed on the door lock assembly, and the dishwasher door can be manually closed and opened by the door handle.

[0016] 2) There is no door handle on the dishwasher door, or the door handle is embedded on the inner side of the dishwasher door. Since there is no door handle on the dishwasher door, the locking rod extends out of the door lock assembly along the ventilation state and door opening direction of the dishwasher. A space for the user to hold the dishwasher door can be formed between the inner side of the dishwasher door and the dishwasher. Only then can the user hold the dishwasher door, which makes it easier to open the dishwasher door.

[0017] In addition, the transmission assembly is provided with an anti-collision transmission structure which is transmission-connected to the lock rod. The anti-collision transmission structure is used to prevent accidental door closing and avoid damage to the lock rod and the transmission assembly which is transmission-connected to the lock rod caused by the impact of accidental door closing.

[0018] In summary, the door lock assembly of the present invention is applicable to various scenarios and usage conditions, and can be equipped with dishwashers with handles or without handles. It has a wide range of applications and rich functions, which improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the door lock assembly according to the first embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the assembly and decomposition structure of the door lock assembly according to the first embodiment of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the dishwasher door body being separated from the locking rod when the locking rod moves to the door opening position according to the first embodiment of the present invention.

[0023] Figure 4 This is an enlarged view of point A in the figure.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the locking rod according to the first embodiment of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the lock rod in another orientation according to the first embodiment of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the dishwasher door being forcibly opened in accordance with the first embodiment of the present invention.

[0027] Figure 8 It is a schematic diagram of the assembly and decomposition structure of the door lock assembly according to the second embodiment of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the hidden shell of the door lock assembly according to the second embodiment of the present invention.

[0029] Fig.10 This is a schematic three-dimensional structural diagram of the dishwasher door being separated from the locking rod when the locking rod moves to the door opening position according to the second embodiment of the present invention.

[0030] Fig.11 It is a schematic diagram of a three-dimensional cross-sectional structure of an anti-collision gear structure provided on a gear transmission group according to a third embodiment of the present invention.

[0031] Fig.12 It is a structural schematic diagram of the anti-collision gear structure and the gear transmission group being disengaged from each other in the third embodiment of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] First embodiment: See also Figure 1-Figure 7 , a door lock assembly for an automatic sliding door of a dishwasher, comprising a lock rod 2 arranged on the door lock assembly 1 and used to buckle with the dishwasher door body, and a driver 7 drivingly connected to the lock rod 2; The locking rod 2 is axially movable on the door lock assembly 1; the driver 7 drives the locking rod 2 to perform axial reciprocating motion along the direction of opening and closing the dishwasher door, so that the locking rod 2 extends and closes on the door lock assembly 1; The locking rod 2 is closed on the door lock assembly 1 and is buckled with the dishwasher door body. The dishwasher door body is separated from the locking rod 2 under the action of external force, so that the dishwasher door body can be opened and closed on the dishwasher; The dishwasher door is buckled with the locking rod 2, and the locking rod 2 drives the dishwasher door to make axial reciprocating motion through the driver 7, so that the dishwasher door is automatically opened and closed on the dishwasher; The locking rod 2 is buckled with the dishwasher door, and the locking rod 2 is extended from the door lock assembly 1 through the driver 7. The dishwasher door is separated from the locking rod 2 under the action of external force, so that the dishwasher door can be opened and closed on the dishwasher after the locking rod 2 is extended. The driver 7 drives the dishwasher door body engaged with the locking rod 2 to move to a corresponding position along the door opening direction, the locking rod 2 extends out of the door lock assembly 1 and remains engaged with the dishwasher door body, and a ventilation gap connected to the outside is formed between the dishwasher door body and the dishwasher inner tank, and the dishwasher is in a ventilation state.

[0034] In this embodiment, the driver 7 is a motor, and when the motor shaft runs, it drives the lock rod to telescopically move on the door lock assembly.

[0035] When the dishwasher is in the high-temperature drying working mode and there is too much gas in the dishwasher tank, the driver 7 drives the locking rod 2 to move in the direction of the door opening position, and the excess gas in the dishwasher tank can be discharged into the outside air. The dishwasher is in a ventilated state. In the high-temperature drying mode of the dishwasher, do not set any exhaust structure, such as an exhaust valve, to simplify the internal structure of the dishwasher.

[0036] The locking rod 2 extends to drive the dishwasher door to open. When the dishwasher door opens to form an operating space for accommodating the user's hands, the user can manually open the dishwasher door. In this way, there is no need to design a door handle on the dishwasher door. At this time, the opening position of the dishwasher door can be set to a ventilation position or a door opening position.

[0037] The locking rod 2 and the dishwasher door body engaged with the locking rod 2 are moved in the door opening direction by the driver 7, and after the locking rod 2 extends out of the door lock assembly 1 to a corresponding position, a handle-free operation space for operating the dishwasher door body to be separated from the locking rod 2 is formed between the inner side of the dishwasher door body and the dishwasher. Alternatively, a door handle for operating the dishwasher door body to be separated from the locking rod 2 is provided on the outer side of the dishwasher door body.

[0038] The locking rod 2 is closed on the door lock assembly 1 , and a door handle for operating the dishwasher door to engage or disengage the locking rod 2 is provided on the dishwasher door.

[0039] The door lock assembly 1 is provided with a switch component for detecting the position of the lock rod 2; The switch assembly includes a reset switch 3, a maximum travel switch 4 and a gate control switch 5; The locking rod 2 triggers the reset switch 3, the maximum travel switch 4 and the door control switch 5 during the axial reciprocating motion along the door opening and closing.

[0040] In this embodiment, when the locking rod 2 is closed, in the manual door closing state: the reset switch 3 is closed, the maximum travel switch 4 is disconnected, and the door control switch 5 is closed; in the manual door opening state: the reset switch 3 is closed, the maximum travel switch 4 is disconnected, and the door control switch 5 is disconnected; in the locking rod 2 ejected state (the action block 11 of the locking rod 2 is between the reset switch 3 and the maximum travel switch 4): the reset switch 3 is disconnected, the maximum travel switch 4 is disconnected, and the door control switch 5 is disconnected; when the locking rod 2 is ejected to the maximum travel, the reset switch 3 is disconnected, the door control switch 5 is disconnected, and the maximum travel switch 4 is closed.

[0041] An elastic block assembly 9 is provided between the corresponding lock rod 2 and the door control switch 5 on the door lock assembly 1, and the elastic block assembly 9 is elastically and movably arranged on the door lock assembly 1; The lock rod 2 is provided with a slider 10 that matches the elastic block assembly 9, and the slider 10 is movably arranged on the lock rod 2; The lock rod 2 is closed on the door lock assembly 1 and is buckled with the dishwasher door body. The slider 10 is limited between the inner side of the dishwasher door body and the elastic block assembly 9. The slider 10 triggers the door control switch 5 by squeezing the elastic block assembly 9 to detect whether the dishwasher door body is in a closed state.

[0042] Through the above arrangement, the door control switch 5 can be used to detect whether the dishwasher door is in a closed state. In case of user misoperation, accidents can be further prevented. For example, when the dishwasher is working, the user accidentally pulls the dishwasher door, which triggers the door control switch 5 to disconnect, and the dishwasher can stop working to prevent accidents. Figure 7 shown.

[0043] The lock rod 2 is provided with an elastic buckle assembly 8 for buckling with the dishwasher door; The elastic buckle assembly 8 includes a lock hook 12 elastically rotatably arranged on the lock rod 2, and a lock buckle 13 cooperating with the lock hook 12 is arranged on the dishwasher door body; The lock buckle 13 is buckled with the lock hook 12, and the dishwasher door is buckled and connected with the lock rod 2; The lock catch 13 is disengaged from the lock hook 12 , and the dishwasher door body is separated from the lock rod 2 .

[0044] See also Figure 7 In this embodiment, the elastic block assembly 9 includes a movable block 22 and an elastic member 23. The elastic member 23 is a compression spring. A guide groove 24 is provided on the inner shell of the door lock assembly 1 corresponding to the movable block 22. The movable block 22 is partially embedded in the guide groove 24. One end of the elastic member 23 abuts against the movable block 22, and the other end of the elastic member 23 abuts against the inner side of the inner shell of the door lock assembly 1, so that the movable block 22 is elastically limited and movable in the door lock assembly 1.

[0045] In this embodiment, a slide groove 25 for installing the slider 10 is provided at the bottom of the lock rod 2. The slider 10 is inserted into the slide groove 25 and is provided with an extension arm 26 that cooperates with the elastic block assembly 9. The movable block 22 is provided with an action arm 27 that extends from the bottom of the locking rod 2. When the dishwasher door is forcibly pulled open without the lock rod 2 extending out, after the dishwasher door is opened, the movable block 22 releases the elastic action of the elastic member 23, and after the action arm 27 contacts the extension arm 26, the movable block 22 pushes open the slider 10, and the door-controlled switch 5 is disconnected. When the dishwasher door is closed again, the lock buckle 13 of the dishwasher door contacts the slider 10, and the lock buckle 13 pushes open the slider 10 along the inner side of the slide groove 25. The slider 10 drives the movable block 22 to move and compress the elastic member 23. After the lock buckle 13 is buckled with the lock rod 2, the slider 10 and the movable block 22 are positioned in the door lock assembly 1, and the movable block 22 triggers the door-controlled switch 5 to close.

[0046] In the above situation, when the dishwasher door is in the closed state and is engaged with the locking rod 2, the driver 7 drives the locking rod 2 to move in the door opening direction, and the movable block 22 pushes the slider 10 open under the elastic action of the elastic member 23, and the door-controlled switch 5 is disengaged. Of course, when the dishwasher door is manually forced to be opened, the movable block 22 pushes the slider 10 open under the elastic action of the elastic member 23, and the door-controlled switch 5 is also disengaged, ensuring safe use.

[0047] The locking rod 2 is provided with an action block 11; the driver 7 drives the locking rod 2 to move to the door closing position, the action block 11 acts on the reset switch 3, and the reset switch 3 is closed; the driver 7 drives the locking rod 2 to move to the maximum stroke position, the action block 11 acts on the maximum stroke switch 4, the maximum stroke switch 4 is closed, and the reset switch 3 is opened.

[0048] In this embodiment, the reset switch 3, the maximum travel switch 4 and the door control switch 5 are all micro switches, and the reset switch 3, the maximum travel switch 4 and the door control switch 5 are arranged on one side of the axial reciprocating motion track of the lock rod 2, and the maximum travel switch 4 is arranged between the reset switch 3 and the door control switch 5. During the reciprocating motion of the lock rod 2, the action block 11 of the lock rod 2 can indirectly or directly trigger the reset switch 3 and the maximum travel switch 4. When the lock rod 2 is extended, the action block 11 moves with the lock rod 2 to the maximum extended stroke position of the lock rod 2, triggering the maximum travel switch 4 to close. When the door is closed, the action block 11 moves with the lock rod 2 to the door closing position, triggering the reset switch 3 to close.

[0049] In this embodiment, a first rotating trigger block is provided on the side of the lock rod assembly 1 corresponding to the maximum travel switch 4, and a second rotating trigger block is provided on the side of the lock rod assembly 1 corresponding to the reset switch 3. When the action block 11 moves with the lock rod 2 to the maximum extended travel position, it rotates through the first trigger block to contact the maximum travel switch 4, the action block 11 does not act on the second trigger block, and the reset switch 3 is disconnected; when the action block 11 moves with the lock rod 2 to the door closing position, it rotates through the second trigger block to contact the reset switch 3, the action block 11 does not act on the first trigger block, and the maximum travel switch 4 is disconnected.

[0050] In this embodiment, the lock rod 2 is provided with a receiving cavity for installing the lock hook 12, and the lock hook 12 is rotatably set on the receiving cavity through a rotating shaft. The lock rod 2 is provided with two elastically rotatable lock hooks 12, and the two elastically rotatable lock hooks 12 are spaced apart on the lock rod 2.

[0051] The elastic buckle assembly 8 also includes a spring 14 , which is detachably connected to the lock hook 12 so that different springs 14 can be replaced on the elastic buckle assembly 8 to adjust the elastic force of the spring 14 .

[0052] In this embodiment, the spring 14 is a tension spring. One end of the spring 14 is connected to one of the lock hooks 12, and the other end of the spring 14 is connected to the other lock hook 12. When the dishwasher door is buckled and connected with the lock rod 2, the two elastic lock hooks 12 clamp the lock buckle 13. When the lock buckle 13 is separated from or enters between the two lock hooks 12, the two lock hooks 12 will be triggered to rotate elastically. The lock buckle 13 is provided with a guide inclined surface that cooperates with the lock hook 12.

[0053] The door lock assembly 1 is provided with a transmission assembly 6, which is arranged between the driver 7 and the lock rod 2, the driving shaft of the driver 7 is in transmission connection with the input end of the transmission assembly 6, and the output end of the transmission assembly 6 is in transmission connection with the lock rod 2; The transmission assembly 6 is a gear transmission group, a pulley transmission group, a screw nut transmission group or a worm gear transmission group.

[0054] The transmission assembly 6 is provided with an anti-collision transmission structure which is transmission-connected to the lock rod 2, and the anti-collision transmission structure includes a first transmission member 15 which is transmission-connected to the gear transmission transmission group, and a second transmission member 16 which is transmission-connected to the lock rod 2, and the first transmission member 15 and the second transmission member 16 are elastically buckled and connected; the dishwasher door body is buckled on the lock rod 2 under the action of external force, and the external force acting on the dishwasher door body is greater than the elastic buckling force of the first transmission member 15 and the second transmission member 16, so as to trigger the elastic separation of the first transmission member 15 and the second transmission member 16, so as to prevent the external force acting on the dishwasher door body from being further transmitted to the lock rod 2 and the transmission assembly 6 which is transmission-connected to the lock rod 2.

[0055] An axial snap-fitting portion 18 is provided between the first transmission member 15 and the second transmission member 16, and the first transmission member 15 and the second transmission member 16 are snap-fitted together through the axial snap-fitting portion 18 under the action of elastic force; when the first transmission member 15 and the second transmission member 16 are separated from each other under the action of external force, the first transmission member 15 axially disengages from the second transmission member 16 along the axial snap-fitting portion 18.

[0056] The door lock assembly 1 includes a first housing 19 and a second housing 20, and an installation space 21 for installing the lock rod 2 is formed between the first housing 19 and the second housing 20, and a transmission assembly 6, an elastic block assembly 9 and a switch assembly are arranged on the installation space 21; The driver 7 is installed on the inside or outside of the installation space 21 .

[0057] The gear transmission group includes a plurality of small gears and large gears which are stacked up and down and mesh with each other. The gear ratio of the gear transmission group can be adjusted by adjusting the size of the gears and / or the number of gears.

[0058] In this embodiment, the large gear is driven to rotate by the small gear, the small gear is meshed with the large gear, the large gear is meshed with another small gear, and the other small gear is meshed with another large gear. The overall height of the gear transmission group is equivalent to the height (thickness) of the lock rod 2 through the meshing transmission of the small gears and the large gears stacked up and down, which reduces the thickness of the door lock assembly 2, and the multi-stage transmission can increase the output torque and reduce the motor power, which is suitable for the use of small motors.

[0059] Second embodiment: See also Figure 8-Figure 10 In this embodiment, the lock rod 2 is provided with a receiving cavity for installing the lock hook 12, and the lock hook 12 is rotatably arranged on the receiving cavity through a rotating shaft. The lock rod 2 is provided with an elastically rotatable lock hook 12, and the lock hook 12 is provided with a strip hole corresponding to the rotating shaft. The spring 14 is a tension spring, one end of the tension spring is connected to the lock hook 12, and the other end of the tension spring is connected to the positioning column of the lock rod 2. An open lock groove is provided on the lock buckle 13, and a guide inclined surface for introducing and exporting the lock hook 12 to the lock groove is provided on the lock buckle 13. When the lock hook 12 rotates, the rotating shaft is limited on the strip hole.

[0060] Third embodiment: See also Figure 11-Figure 12 The gear transmission group includes a first transmission member 15 and a second transmission member 16 which are stacked up and down, an axial buckling portion 18 is provided between the first transmission member 15 and the second transmission member 16, a pressing spring 17 for elastically pressing the first transmission member 15 on the second transmission member 16 is provided between the first transmission member 15 and the door lock assembly 1, and the first transmission member 15 and the second transmission member 16 are buckled through the axial buckling portion 18; The first transmission member 15 is a first gear and meshes with one of the gears in the gear transmission group, and the second transmission member 16 is a second gear and meshes with the lock rod 2; when the door is closed manually, the dishwasher door body is buckled with the lock rod 2, and the door closing force is greater than the elastic force of the compression spring 17 on the first transmission member 15, the first transmission member 15 is disengaged from the second transmission member 16, the first transmission member 15 and / or the second transmission member 16 are disengaged from the gear transmission group and are in a free state, preventing the door closing impact force from being further transmitted to the lock rod 2 and the transmission gear group meshing with the lock rod 2, avoiding damage to the rack of the lock rod 2 and the gear on the transmission gear group, and effectively extending the service life of the door lock assembly 1.

[0061] In this embodiment, the axial engagement portion 18 includes a notch provided on the first transmission member 15 and a protrusion provided on the second transmission member 16. When the first transmission member 15 and the second transmission member 16 are engaged, the protrusion is inserted into the notch, and the pressing spring 17 is sleeved on the gear shaft of the first transmission member 15. The first transmission member 15 is provided with a groove, and one end of the pressing spring 17 is limited on the groove. In this way, when the gear transmission group is operating normally, the first transmission member 15 and the second transmission member 16 are driven to rotate together, thereby moving the lock rod 2. However, the first transmission member 15 is separated from the second transmission member 16, the protrusion is separated from the notch, and the pressing spring 17 is elastically deformed. The first transmission member 15 cannot drive the second transmission member 16 to rotate, and the gear transmission group is also disconnected from the first transmission member 15. The first transmission member 15 and the second transmission member 16 effectively form an anti-collision gear group.

[0062] In this embodiment, the first transmission member 15 and the second transmission member 16 can be elastically restored to the engaged state after being separated.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0064] In the above description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0065] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the above description of the present application, unless otherwise clearly specified and limited, if the terms "install", "connect", "connect", "fix" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection using screws, rivets or welding, or a detachable connection, or integrated through metal processing (die casting, deep drawing, stamping, lathe and other mechanical processing methods) or through injection molding; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0067] In the above description of the present application, unless otherwise clearly stipulated and limited, if there is a description that a first feature is "on" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

Claims

1. A door lock assembly for an automatic sliding door of a dishwasher, characterized by: It comprises a lock rod (2) arranged on a door lock assembly (1) and used to engage with a door body of the dishwasher, and a driver (7) drivingly connected to the lock rod (2); The locking rod (2) is axially movable on the door lock assembly (1); the driver (7) drives the locking rod (2) to perform axial reciprocating motion along the direction of opening and closing the dishwasher door, so that the locking rod (2) extends out and closes on the door lock assembly (1); The locking rod (2) is closed on the door lock assembly (1) and is engaged with the dishwasher door body. The dishwasher door body is separated from the locking rod (2) under the action of an external force, so that the dishwasher door body can be opened and closed on the dishwasher; The dishwasher door body is buckled with the locking rod (2), and the locking rod (2) drives the dishwasher door body to perform axial reciprocating motion through the driver (7), so that the dishwasher door body automatically opens and closes on the dishwasher.

2. The door lock assembly for the automatic sliding door of a dishwasher according to claim 1, characterized in that: The driver (7) drives the dishwasher door body that is engaged with the lock rod (2) to move to a corresponding position in the door opening direction, the lock rod (2) extends out of the door lock assembly (1) and remains engaged with the dishwasher door body, a ventilation gap that communicates with the outside is formed between the dishwasher door body and the dishwasher inner tank, and the dishwasher is in a ventilation state.

3. The door lock assembly for the automatic sliding door of the dishwasher according to claim 1 is characterized in that: The locking rod (2) is engaged with the dishwasher door, and the locking rod (2) is extended from the door lock assembly (1) by the driver (7). The dishwasher door is separated from the locking rod (2) under the action of an external force, so that the dishwasher door can be opened and closed on the dishwasher after the locking rod (2) is extended. The locking rod (2) and the dishwasher door body engaged with the locking rod (2) are moved in the door opening direction by the driver (7), and after the locking rod (2) extends out of the door lock assembly (1) to a corresponding position, a handle-free operation space for operating the dishwasher door body to disengage from the locking rod (2) is formed between the inner side of the dishwasher door body and the dishwasher; or a door handle for operating the dishwasher door body to disengage from the locking rod (2) is provided on the outer side of the dishwasher door body.

4. The door lock assembly for the automatic sliding door of a dishwasher according to claim 1, characterized in that: The locking rod (2) is closed on the door lock assembly (1), and a door handle for operating the dishwasher door to engage or disengage the locking rod (2) is provided on the dishwasher door.

5. The door lock assembly for the automatic sliding door of a dishwasher according to claim 1, characterized in that: The door lock assembly (1) is provided with a switch component for detecting the position of the lock rod (2); The switch assembly comprises a reset switch (3), a maximum travel switch (4) and a door control switch (5); The lock rod (2) triggers the reset switch (3), the maximum travel switch (4) and the door control switch (5) during the axial reciprocating motion along the door opening and closing.

6. The door lock assembly for the automatic sliding door of a dishwasher according to claim 5, characterized in that: An elastic block assembly (9) is provided between the corresponding lock rod (2) and the door control switch (5) on the door lock assembly (1), and the elastic block assembly (9) is elastically and movably arranged on the door lock assembly (1); The locking rod (2) is provided with a sliding block (10) that cooperates with the elastic block assembly (9), and the sliding block (10) is movably arranged on the locking rod (2); The lock rod (2) is closed on the door lock assembly (1) and is engaged with the dishwasher door body, the slider (10) is limited between the inner side of the dishwasher door body and the elastic block assembly (9), and the slider (10) triggers the door control switch (5) by squeezing the elastic block assembly (9) to detect whether the dishwasher door body is in a closed state.

7. The door lock assembly for the automatic sliding door of a dishwasher according to claim 1, characterized in that: The lock rod (2) is provided with an elastic buckle assembly (8) for buckling with the dishwasher door; The elastic buckle assembly (8) comprises a lock hook (12) elastically rotatably arranged on the lock rod (2), and a lock buckle (13) cooperating with the lock hook (12) is provided on the door body of the dishwasher; The lock buckle (13) is buckled with the lock hook (12), and the dishwasher door is buckled and connected with the lock rod (2); The lock catch (13) is disengaged from the lock hook (12), and the dishwasher door body is separated from the lock rod (2).

8. The door lock assembly for the automatic sliding door of a dishwasher according to claim 1, characterized in that: The door lock assembly (1) is provided with a transmission assembly (6), which is arranged between the driver (7) and the lock rod (2), the drive shaft of the driver (7) is in transmission connection with the input end of the transmission assembly (6), and the output end of the transmission assembly (6) is in transmission connection with the lock rod (2); The transmission assembly (6) is a gear transmission group, a pulley transmission group, a screw nut transmission group or a worm gear transmission group.

9. The door lock assembly for the automatic sliding door of a dishwasher according to claim 8, characterized in that: The transmission assembly (6) is provided with an anti-collision transmission structure which is transmission-connected to the lock rod (2), the anti-collision transmission structure comprising a first transmission member (15) which is transmission-connected to the gear transmission group, and a second transmission member (16) which is transmission-connected to the lock rod (2), the first transmission member (15) and the second transmission member (16) being elastically buckled and connected; the dishwasher door body is buckled on the lock rod (2) under the action of an external force, and the external force acting on the dishwasher door body is greater than the elastic buckling force of the first transmission member (15) and the second transmission member (16), so as to trigger the elastic separation of the first transmission member (15) and the second transmission member (16), so as to prevent the external force acting on the dishwasher door body from being further transmitted to the lock rod (2) and the transmission assembly (6) which is transmission-connected to the lock rod (2).

10. The door lock assembly for the automatic sliding door of a dishwasher according to claim 8, characterized in that: An axial locking portion (18) is provided between the first transmission member (15) and the second transmission member (16); the first transmission member (15) and the second transmission member (16) are locked together via the axial locking portion (18) under the action of elastic force; when the first transmission member (15) and the second transmission member (16) are separated under the action of an external force, the first transmission member (15) axially disengages from the second transmission member (16) along the axial locking portion (18).

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