CN217610950U - Dish washing machine - Google Patents

Abstract

The utility model belongs to the technical field of household electrical appliances, specifically disclose a dish washer, including the organism and the door body, the lower extreme of the door body with the organism rotates to be connected, still includes the switch door gear, the switch door gear including install in the switch door mechanism at organism top with install in the lock subassembly at door body top, the switch door mechanism has the latch portion, the latch portion can be relative the organism stretch out forward with lock subassembly closure and withdrawal backward with the unblock of lock subassembly. The utility model discloses a dish washer can improve dish washer's use automation, improves dish washer's use and experiences.

Description

Dish washing machine

Technical Field

The utility model belongs to the technical field of electrical apparatus, especially, relate to a dish washer.

Background

The dish washer is an electric appliance capable of automatically washing and drying tableware such as bowls and dishes, can effectively liberate the hands of a user, reduces the labor intensity of the user, and improves the life quality of the user.

The dishwasher generally comprises a dishwasher body and a dishwasher door hinged with the dishwasher body, wherein a cleaning cavity is arranged in the dishwasher body, a dishwasher basket, a spraying mechanism, a drainage mechanism and the like are arranged in the cleaning cavity, the lower end of the dishwasher door is hinged with the dishwasher body through a hinge mechanism, and the upper end of the dishwasher door is locked or unlocked with the dishwasher body through a door lock component to realize the opening and closing of the dishwasher door.

However, in the existing dishwasher, the door lock assembly usually only can unlock or lock the door body with the machine body when the door body is closed, and the dishwasher with the automatic door opening and closing function usually realizes the automatic opening or closing of the dishwasher through the hinge mechanism at the lower end of the machine door, so that the hinge mechanism is difficult to effectively control the opening angle of the upper end of the machine door, and when the upper end of the machine door only needs to open a small gap, the hinge mechanism consumes more energy, and is difficult to effectively stabilize the machine door in the state, thereby affecting the use effect of the dishwasher and increasing the use energy consumption of the dishwasher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dish washer to improve dish washer's degree of automation, improve dish washer's use and experience, reduce dish washer's energy consumption.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a dishwasher, includes the organism and the door body, the lower extreme of the door body with the organism rotates to be connected, still includes the switch door gear, the switch door gear including install in the switch door mechanism at organism top with install in the lock subassembly at door body top, the switch door mechanism has the lock tongue portion, the lock tongue portion can be relative the organism stretch out forward with lock subassembly closure and withdrawal backward with the lock subassembly unblock.

As an optional technical scheme of the dishwasher, when the dishwasher is in a state that the door lock assembly is locked with the latch portion, the latch portion can push the door lock assembly by extending forward to open a preset gap at the upper end of the door body, and the latch portion can pull the door lock assembly by retracting backward to close the opened door body.

As an optional technical solution of the dishwasher, the door opening and closing device further has a detection unit, the detection unit has a first state and a second state, and signals triggered by the detection unit in the first state and the second state are different;

when the bolt portion is locked with the door lock assembly, the detection unit is in the first state, and when the bolt portion is unlocked with the door lock assembly, the detection unit is in the second state.

As an optional technical scheme of the dishwasher, the door lock assembly comprises a rotating unit, the rotating unit is rotatably mounted on the door body through a rotating shaft, the rotating unit is provided with a lock catch part matched with the bolt part, the rotating unit is provided with a trigger part, and the trigger part is provided with a trigger position for triggering the detection unit to switch between the first state and the second state;

the door opening and closing device is configured to: in the process of unlocking or locking the lock tongue part and the lock catch part, the lock tongue part can push the rotating unit to rotate, so that the trigger part reaches or is far away from the trigger position.

As an optional technical solution of the dishwasher, the detection unit includes a microswitch, the microswitch has a contact, and the trigger portion can selectively press or release the contact when the rotation unit rotates, so as to switch the microswitch between the first state and the second state.

As an optional technical solution of the dishwasher, when the locking part is locked with the bolt part, the trigger part presses down the contact, and when the locking part is unlocked with the bolt part, the trigger part is separated from the contact.

As an optional technical proposal of the dishwasher, the lock catch part is positioned at the upper side of the rotating shaft, and the trigger part is positioned at the lower side of the rotating shaft;

and/or the rotating shaft can rotate around the axis of the rotating shaft.

As an optional technical scheme of the dishwasher, the rotating unit comprises a first rotating body and a second rotating body which are linked synchronously, the first rotating body and the second rotating body are sleeved on the rotating shaft in a rotating mode, the locking part is arranged on the first rotating body, and the triggering part is arranged on the second rotating body.

As an alternative solution of the dishwasher, the door lock assembly further includes an elastic member for applying a force to the rotation unit to hold the rotation unit to the locking position when the door lock assembly is locked with the locking tongue portion.

As an optional technical scheme of the dishwasher, when the door lock assembly is unlocked with the bolt part, the elastic piece is in a natural state.

As an optional technical scheme of a dish washer, the lock subassembly have be used for with spring bolt portion complex hasp portion, seted up the buckle mouth on the spring bolt portion, when hasp portion card is gone into when the buckle mouth, the lock subassembly with the lock tongue portion locking.

As an optional technical scheme of the dishwasher, the locking part is provided with a locking guide surface, and the front end of the locking tongue part can be abutted against the locking guide surface and can slide relative to the locking guide surface, so that the locking part is extruded into the locking opening;

and/or the latch part is provided with a tripping guide surface, and when the latch part retracts backwards relative to the door body, the latch part can be pressed against the tripping guide surface and slides relative to the tripping guide surface, so that the locking part is separated from the buckling opening.

The beneficial effects of the utility model reside in that:

according to the dish washing machine provided by the embodiment, by arranging the door opening and closing device, the door body can be pushed open by the forward extension of the bolt part, so that the upper end of the door body is opened to form a preset gap, and therefore, in the initial stage of the drying process of the dish washing machine, the hot and humid air can be discharged to the outside of the dish washing machine by opening the door, and the drying efficiency is improved; meanwhile, the door body can be pulled back by retracting the latch part backwards, so that the door body is closed, and the door body is pulled back and closed at the later stage of the drying process or after the drying process of the dish washing machine is finished, so that the door body is prevented from being always in an open state, pollution to bowls and dishes in the dish washing machine caused by an external ash layer and the like is avoided, the use experience of the dish washing machine is improved, the control of automatically opening and closing the door is realized, and the intelligent degree of the dish washing machine is enhanced;

secondly, the top end of the machine door is opened or closed to form a preset gap through a door opening and closing device arranged at the top of the dish washing machine, energy consumption is saved, the door body can be automatically opened and closed, and automation of the dish washing machine can be effectively improved; moreover, when the top end of the machine door is opened with the preset gap, the door lock assembly and the bolt part are in a locked state, so that the machine door can be kept in the opened state, the machine door cannot be easily restored to a door closing position or opened to a position with a larger angle due to gravity or external force collision, and the stability is strong; furthermore, when the door is closed, the bolt part is locked with the door lock assembly, so that the dishwasher can keep the state that the door is closed, the door opening and closing device simultaneously plays a role of a door lock, and the functionality is strong.

Furthermore, the detection unit is arranged, so that whether the lock tongue part and the door lock assembly are locked or not can be judged, the problem that the lock rod extends forwards to jack the door body and the door body falls downwards under the action of gravity when the lock tongue part and the door lock assembly are not locked is avoided, and the operation safety of the dish-washing machine is ensured.

Drawings

FIG. 1 is a schematic structural diagram of a dishwasher provided by an embodiment of the present invention;

FIG. 2 is a schematic structural view of a dishwasher according to an embodiment of the present invention with a top plate removed;

FIG. 3 is an enlarged view of a portion of FIG. 2 at I;

FIG. 4 is a partial cross-sectional view of a dishwasher provided by an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at J;

fig. 6 is a schematic view of a part of the structure of the machine body provided by the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a door opening and closing mechanism provided in the embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at K;

fig. 9 is a schematic partially disassembled structure view of a door assembly provided by an embodiment of the present invention;

fig. 10 is a schematic view of the locking bar of the present invention in locking engagement with a door lock assembly;

fig. 11 is a schematic structural view of a door lock assembly according to an embodiment of the present invention in a locked state;

fig. 12 is a schematic view of the lock rod and door lock assembly provided by the present invention when unlocked;

fig. 13 is a schematic view of a disassembled structure of a door lock assembly provided by an embodiment of the present invention;

fig. 14 is a schematic view of a door lock assembly according to an embodiment of the present invention shown from a perspective with the bracket removed;

fig. 15 is a schematic view of a door lock assembly according to an embodiment of the present invention shown from another perspective with the bracket removed;

fig. 16 is a schematic structural diagram of a bracket under a viewing angle according to an embodiment of the present invention;

fig. 17 is a schematic structural view of a bracket provided by an embodiment of the present invention at another viewing angle;

fig. 18 is a schematic structural diagram of a first rotating body according to an embodiment of the present invention;

fig. 19 is a schematic structural view of a second rotating body according to an embodiment of the present invention.

The figures are labeled as follows:

1. a door lock assembly; 11. a first rotating body; 111. a mounting arm portion; 1111. pressing the surface; 1112. a weight reduction groove; 112. a connecting arm portion; 113. a locking part; 1131. buckling the guide surface; 1132. a trip guide surface; 1133. a circular arc transition surface; 114. a connecting shaft portion; 115. a reinforcing rib portion; 116. a first shaft hole; 12. a second rotating body; 121. a rotating arm; 1211. a second shaft hole; 122. a connecting portion; 1221. a pushing surface; 123. an extension arm portion; 124. pressing the arm part; 125. a trigger section; 13. a support; 131. mounting a boss; 1311. a main mounting cavity; 1312. a shaft through hole; 132. positioning the boss; 133. an insertion opening; 134. a guide portion; 1341. inserting the guide surface; 135. a switch mounting portion; 1351. a switch mounting cavity; 1352. inserting and connecting the bulges; 136. a baffle portion; 137. a tension spring mounting part; 1371. a bayonet; 1372. a bottom opening; 138. a limiting part; 139. connecting the threaded hole; 14. an elastic member; 141. hooking; 142. a ring groove; 15. a microswitch; 151. a contact; 152. inserting holes; 16. a rotating shaft;

2. a door opening and closing mechanism; 21. a lock lever; 211. a lock tongue portion; 2111. a buckle opening; 2112. a guide bottom surface; 212. a rod body; 22. mounting a shell; 221. a limiting boss; 222. a bottom positioning surface; 223. a front positioning surface; 224. a fixing through hole;

3. a door body; 31. an outer door; 32. a door lining; 321. an annular peripheral wall; 322. a rim plate portion; 323. positioning holes; 324. avoiding the mouth; 325. a connecting through hole;

4. a body; 41. a housing; 411. a machine top plate; 4111. a convex hull; 4112. edge covering; 412. a machine side plate; 42. an upper cross beam; 421. a lateral plate portion; 4211. fixing the threaded hole; 422. a front plate portion; 4221. a limiting hole; 423. an extension plate portion; 424. a connecting plate portion; 425. a flap portion; 426. a reinforcing plate portion; 43. an inner container; 431. a groove; 4311. a first groove portion; 4312. a second groove portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in FIG. 1, the embodiment provides a dishwasher, which has an automatic door opening and closing function, and can realize that the dishwasher opens the door at a preset angle automatically in the drying stage, and automatically closes the door after the door is opened at the preset angle, thereby improving the drying efficiency of the dishwasher and the automation of the dishwasher.

Specifically, as shown in fig. 1 and 2, the dishwasher includes a door 3, a body 4, a spraying assembly, a drying assembly, a drainage assembly, and the like. The machine body 4 is a box body structure with an open front side, and a cleaning cavity is formed inside the machine body; the lower end of the door body 3 is rotatably connected with the lower end of the machine body 4, so that the door body 3 can selectively open or close the front opening of the machine body 4; the spraying component is arranged in the cleaning cavity and is used for spraying and cleaning the tableware in the cleaning cavity; the drying component is arranged in the cleaning cavity and used for heating the air in the cleaning cavity so as to dry clean tableware; the drainage assembly is arranged at the bottom of the cleaning cavity and used for draining water in the cleaning cavity.

The body 4 includes a housing 41, a front frame, and an inner container 43. The housing 41 includes a bottom plate and a top plate 411 disposed opposite to each other from top to bottom, and two side plates 412 disposed opposite to each other from left to right, both ends of each side plate 412 are connected to the bottom plate and the top plate 411, the housing 41 further includes a back plate connected to the rear ends of the two side plates 412, and the upper and lower ends of the back plate are connected to the top plate 411 and the bottom plate, respectively. The front frame is a rectangular frame structure, and is located at the front side opening of the casing 41, so as to enhance the overall structural strength and rigidity of the machine body 4 and ensure the supporting performance of the machine body 4. The front frame comprises upper and lower opposite cross beams arranged at intervals and longitudinal beams connected between the two cross beams, the cross beams extend along the left and right direction, the longitudinal beams extend along the vertical direction, the upper ends of the two machine side plates 412 and the machine top plate 411 are connected with the upper cross beam 42 positioned at the upper end, and the front end of the inner container 43 is detachably connected with the front frame.

It should be understood that, in the above and in the following description, the left and right directions, the front and back directions, the vertical direction and the like are all based on the orientation of the dishwasher relative to the user when the dishwasher is in a normal use state, that is, the front side of the dishwasher refers to the side close to the user, and the back side refers to the side far away from the user.

The dishwasher further comprises a door opening and closing device, the door opening and closing device comprises a door opening and closing mechanism 2 installed at the top of the machine body 4 and a door lock assembly 1 installed at the top of the door body 3, the door opening and closing mechanism 2 is provided with a bolt portion 211, and the bolt portion 211 can extend forwards relative to the machine body 4 to be locked with the door lock assembly 1 and retract backwards to be unlocked with the door lock assembly 1.

The door opening and closing device is configured to: when the door lock assembly 1 is locked with the latch tongue portion 211, the latch tongue portion 211 can push the door lock assembly 1 by extending forward to open a predetermined gap at the upper end of the door body 3, and the latch tongue portion 211 can pull back the opened door body 3 by retracting backward to close the door body 3.

According to the dishwasher provided by the embodiment, by arranging the door opening and closing device, the door body 3 can be pushed open by the forward extension of the bolt part 211, so that the upper end of the door body 3 is opened with a preset gap, and therefore, in the initial stage of the drying process of the dishwasher, the wet and hot air can be discharged to the outside of the dishwasher by opening the door 3, and the drying efficiency is improved; meanwhile, the door body 3 can be pulled back by retracting the latch part 211 backwards, so that the door body 3 is closed, the door body 3 is pulled back to be closed at the later stage of the drying process or after the drying process of the dish washing machine is finished, the door body 3 is prevented from being always in an open state, pollution of an external ash layer and the like to bowls and dishes in the dish washing machine is avoided, and the use experience of the dish washing machine is improved; secondly, the top end of the machine door 3 is opened or closed to form a preset gap through a door opening and closing device arranged at the top of the dish washing machine, energy consumption is saved, the door body 3 can be automatically opened and closed, and automation of the dish washing machine can be effectively improved; moreover, when the top end of the machine door 3 is opened to the preset gap, the door lock assembly 1 and the bolt part 211 are in a locked state, so that the machine door 3 can be kept at the opening position, and can not be easily returned to the door closing position or opened to a position with a larger angle due to gravity or external force collision, and the stability is strong; further, when the door 3 is closed, the locking tongue portion 211 is locked with the door lock assembly 1, so that the dishwasher can maintain the closed state of the door 3, and the door opening and closing device can play a role of a door lock at the same time, and has strong functionality.

In order to improve the installation convenience of the door opening and closing mechanism 2 on the machine body 4, the door opening and closing mechanism 2 comprises a lock rod 21, an installation shell 22 and a telescopic driving unit, the installation shell 22 is installed between the inner container 43 and the top plate 411, the front end of the lock rod 21 is provided with the lock tongue portion 211, the front end of the lock rod 21 can extend out of the installation shell 22 and the front side of the machine body 4, and the rear end of the lock rod 21 and the telescopic driving unit are both located in the installation shell 22. This kind of setting for the whole that the switch door mechanism 2 formed and to dismantle alone, the modularization degree is high, and effectively improves its installation convenience on organism 4.

As shown in fig. 4-8, in the present embodiment, an installation space is formed by surrounding the top of the top plate 411, the upper beam 42 and the top of the inner container 43, the door opening and closing mechanism 2 is installed in the installation space, a limit hole 4221 penetrating the front side of the upper beam 42 and the front side of the inner container 43 is opened on the front side of the body 4, and the front end of the lock lever 21 can pass through the limit hole 4221 to extend out of the body 4.

To better ensure that the lock lever 21 is kept horizontally stretched during operation, the body 4 preferably has a limiting structure for limiting the position of the mounting case 22 relative to the body 4 in the left-right direction, the front-rear direction, and/or the vertical direction. The position of the installation shell 22 relative to the machine body 4 is limited by the limiting structure, the installation shell 22 is prevented from shaking relative to the machine body 4 in the telescopic process of the lock rod 21, the lock rod 21 is prevented from shaking, the stability and the direction accuracy of the lock rod 21 in the telescopic process are guaranteed, and the reliability of butt joint of the lock tongue portion 211 and the door lock assembly 1 is improved.

Further, the limiting structure comprises the limiting hole 4221, a limiting boss 221 is convexly arranged on the front side of the mounting shell 22, the limiting boss 221 is inserted into the limiting hole 4221 and attached to the hole wall of the limiting hole 4221, and the lock rod 21 penetrates through the limiting boss 221 in a sliding manner. Through the cooperation of spacing boss 221 and spacing hole 4221, can restrict the relative door body 3 of installation shell 22 and rock about and rock from top to bottom, guarantee the installation stability of switching door mechanism 2 on the door body 3 promptly, avoid installation shell 22 to produce in the installation space and remove to guarantee the levelness of locking lever 21 seesaw, improve the operational reliability of switching door device.

Further, the limiting hole 4221 is rectangular, the upper side and the lower side of the rectangle are horizontally arranged, and the shape of the limiting boss 221 is matched with the limiting hole 4221. Through the limiting hole 4221 with the rectangular shape, the edges of the upper side and the lower side of the limiting hole 4221 are used for achieving upper limiting and lower limiting of the installation shell 22 respectively, the edges of the left side and the right side are used for achieving left limiting and right limiting of the installation shell 22 respectively, limiting reliability is high, and machining is more convenient. In other embodiments, the position-limiting hole 4221 may also be circular, triangular, trapezoidal or other shapes as long as the shape of the position-limiting hole 4221 is matched with that of the position-limiting boss 221.

Further, limit structure includes the upper surface and the entablature 42 of inner bag 43, the front end bottom of installation shell 22 supports in entablature 42, the rear end of installation shell 22 supports on inner bag 43, guarantee from this that the front and back both ends of installation shell 22 can all be effectively supported, avoid the rear end of installation shell 22 to rock from top to bottom because of lacking the support, further guarantee the stability that sets up of switch door mechanism 2 on body 4, thereby guaranteed locking lever 21 the levelness at installation and removal in-process.

Preferably, the upper cross beam 42 has a horizontally disposed horizontal installation surface, the limiting structure includes a horizontal installation surface, the bottom of the front end of the installation shell 22 has a bottom positioning surface 222, the bottom positioning surface 222 is attached to the horizontal installation surface, and the installation shell 22 is installed on the horizontal installation surface. The cooperation of the horizontal mounting surface and the bottom positioning surface 222 makes the mounting shell 22 keep horizontal when being mounted, and the surface contact mode of the horizontal mounting surface and the mounting shell 22 also ensures the lower limit of the mounting position of the mounting shell 22.

Further, the upper cross beam 42 has a vertically arranged front side installation surface, the front side installation surface is perpendicular to the front-back direction, the limiting structure comprises a front side installation surface, the front side of the installation shell 22 is provided with a front positioning surface 223, and the front positioning surface 223 is attached to the front side installation surface. The front side mounting surface is matched with the front positioning surface 223, so that the front and back positioning of the mounting shell 22 during mounting is ensured, and the left and right shaking of the mounting shell 22 during mounting is avoided.

In the present embodiment, the positioning hole 4221 is opened on the front mounting surface, and the limit boss 221 is protruded on the front positioning surface 223.

To simplify the structure of the upper cross member 42, the upper cross member 42 has a horizontally disposed lateral plate portion 421 and a vertically disposed front plate portion 422, the front plate portion 422 is connected to a front side edge of the lateral plate portion 421 and projects upward from the lateral plate portion 421, an upper surface of the lateral plate portion 421 forms a horizontal mounting surface, and a rear surface of the front plate portion 422 forms a front side mounting surface. The front end of the liner top plate of the liner 43 is attached to and detachably connected with the lower surface of the transverse plate portion 421, a front baffle extends upwards and vertically from the front end of the liner top plate, the front baffle is attached to and detachably connected with the front side face of the front plate portion 422, and the positioning hole 4221 penetrates through the front baffle and the front plate portion 422.

The rear end of the lateral plate 421 is bent vertically upward to form a connecting plate 424, the upper end of the connecting plate 424 is bent vertically backward to form a flap 425, and the flap 425 is attached to and detachably connected with the inner surface of the top plate 411. Further, the horizontal plate portion 421 extends rearward horizontally with the extension plate portion 423, the extension plate portion 423 is positioned between two adjacent connecting plate portions 424, and the bottom of the front end of the mounting case 22 is supported by the horizontal plate portion 421 and the extension plate portion 423. The arrangement of the extension plate portion 423 can increase the contact area between the upper beam 42 and the mounting case 22, increase the support stability of the mounting case 22, and further ensure the mounting stability of the mounting case 22.

In order to further limit the installation position of the installation shell 22, the limiting structure further comprises an inner surface of the top plate 411, and the minimum distance between the installation shell 22 and the inner surface of the top plate 411 is greater than or equal to 0 and less than 1mm, so that the top plate 411 can further limit the upward movement of the installation shell 22.

In order to provide a sufficient installation space for the door opening and closing mechanism 2 while achieving the limit of the door opening and closing mechanism 2, it is preferable that a groove 431 is formed in a part of the bladder top plate, and the rear end of the installation case 22 abuts against the groove bottom of the groove 431. With the arrangement, the rear part of the installation space is relatively thick, and the layout of the telescopic driving unit in the installation shell 22 is convenient.

The groove 431 preferably includes a first groove portion 4311 and a second groove portion 4312 which are connected in a front-rear direction, the first groove portion 4311 is located at a front side of the second groove portion 4312, a groove bottom of the first groove portion 4311 is lower than a groove bottom of the second groove portion 4312, and a bottom of a rear end of the mounting case 22 abuts against the groove bottom of the second groove portion 4312. This kind of setting is favorable to when providing enough installation space for opening and closing door mechanism 2, reduces the tank bottom surface area that is used for with installation shell 22 complex recess 431 to when guaranteeing the horizontal machining precision of tank bottom surface, reduce the processing cost.

The rear end of the extension plate portion 423 is vertically extended downward with a reinforcement plate portion 426, and the lower end of the reinforcement plate portion 426 is inserted into the first groove portion 4311 to enhance the overall structural strength of the upper cross member 42.

Further, the inner surface of the top plate 411 is formed with a convex hull 4111 protruding outwards, and the mounting shell 22 is at least partially located below the convex hull 4111. The setting of convex hull 4111 can increase the size of installation space in the direction of height when strengthening the structural strength of roof 411 to for the installation of switching door mechanism 2 provides bigger facility, reduce the overall arrangement influence to switching door mechanism 2 inner structure.

The mounting housing 22 is preferably screwed to the upper cross member 42 to improve the stability of the arrangement of the opening and closing mechanism 2 on the body 4. In order to improve the connection convenience, the mounting shell 22 is provided with fixing through holes 224, the transverse plate portion 421 is provided with fixing threaded holes 4211, the fixing threaded holes 4211 correspond to the fixing through holes 224 one to one, and the mounting shell 22 is in locking connection with the upper cross beam 42 through screws penetrating through the fixing threaded holes 4211 and the fixing through holes 22. In this embodiment, two fixing threaded holes 4211 are provided, and the two fixing threaded holes 4211 are respectively located at the left and right sides of the limiting hole 4221, so as to improve the stress stability of the mounting shell 22 and further ensure the reliability of the local positions of the mounting shell 22 at the left and right sides of the lock rod 21.

In this embodiment, flexible drive unit includes driving motor, intermediate transmission subassembly and rack and pinion rack subassembly, and the rack and pinion rack subassembly includes engaged output gear and rack, and the rack is arranged and is connected on locking lever 21 along the fore-and-aft direction, and driving motor's rotation drives output gear through intermediate transmission subassembly and rotates to drive the rack along the fore-and-aft direction motion, and through the direction of rotation that changes the driving motor drive shaft, then steerable rack rearward movement or forward movement. It is understood that the specific structure of the telescopic driving unit can be set by referring to the prior art, and the embodiment is not limited thereto.

As shown in fig. 8, a through hole for the lock rod 21 to pass through is formed in the front side of the mounting shell 22, the lock rod 21 includes a rod body 212 and a latch portion 211 connected to the front end of the rod body 212, the rack is disposed on the side of the rod body 212, and the cross section of the rod body 212 is adapted to the through hole, so as to further prevent the lock rod 21 from warping during the moving process. Preferably, the thickness of the latch part 211 is smaller than that of the rod body 212, the upper surface of the latch part 211 is lower than that of the rod body 212, and the upper surface of the rod body 212 and the upper surface of the latch part 211 are transitionally connected by a curved surface which is obliquely arranged from front to back, so that the height of the latch part 211 is reduced while the overall structural rigidity and strength of the lock rod 21 are ensured, and the convenience of matching the latch part 211 with the door lock assembly 1 is improved.

As shown in fig. 2, 3 and 9, the door lock assembly 1 is mounted on the door body 3, and the door lock assembly 1 and the door body 3 together form a door assembly. Specifically, the door body 3 includes an outer door 31 and a door lining 32 arranged on the inner side of the outer door 31, the outer door 31 is detachably connected to the door lining 32, the outer door 31 and the door lining 32 surround to form an accommodating cavity, the main structure of the door lock assembly 1 is located in the accommodating cavity, and the door lock assembly 1 has a locking part 113 matched with the bolt part 211.

In this embodiment, the latch portion 211 is provided with a latching opening 2111, when the locking portion 113 is latched into the latching opening 2111, the door lock assembly 1 is locked with the latch portion 211, and when the latch portion 211 is disengaged from the latching opening 2111, the door lock assembly 1 is unlocked from the latch portion 211. In other embodiments, the locking tongue portion 211 and the locking portion 113 may also adopt other matching structures, as long as it is ensured that the locking tongue portion 211 can be locked with the locking tongue portion 211 by being protruded forward and unlocked with the locking portion 113 by being retracted backward.

In order to detect the engagement state of the latch section 211 with the door lock assembly 1 to precisely control the operation of the dishwasher, the door opening and closing device has a detection unit configured to: when the bolt portion 211 is locked with the door lock assembly 1, the first state is provided, and when the bolt portion 211 is unlocked with the door lock assembly 1, the second state is provided, and the signals triggered by the detection unit in the first state and the second state are different. Through setting up the detecting element, can judge whether lock tongue 211 and lock subassembly 1 lock to avoid when lock tongue 211 and lock subassembly 1 do not lock, make locking lever 22 stretch out forward and push open the problem that the door body 3 topples over downwards under the action of gravity that leads to the door body 3, guarantee the operation security of dish washer.

In order to improve the detection accuracy of the detection unit, as shown in fig. 10-13, the door lock assembly 1 includes a rotation unit rotatably mounted on the door body 3 through a rotation shaft 16, the rotation unit has a locking portion 113 engaged with the locking tongue portion 211, and the rotation unit has a trigger portion 125, the trigger portion 125 has a trigger position for triggering the detection unit to switch between the first state and the second state; the door opening and closing device is configured to: during the process of unlocking or locking the latch portion 211 with the locking portion 113, the latch portion 211 can push the rotating unit to rotate, so that the triggering portion 125 reaches or moves away from the triggering position.

According to the arrangement, the action of the trigger part 125 for triggering the detection unit to switch the state is consistent with the action of unlocking or locking the lock tongue part 211 and the lock catch part 113, so that the trigger part 125 can trigger the detection unit to switch to the first state when the lock tongue part 211 and the lock catch part 113 complete locking, and the trigger part 125 can trigger the detection unit to switch to the second state when the lock tongue part 211 and the lock catch part 113 are unlocked, so that the reliability of the detection result of the detection unit is improved, and the probability of misjudgment of the detection unit is reduced.

To further improve the detection reliability, in the present embodiment, the detection unit includes the micro switch 15, the micro switch 15 has a contact 151, and the trigger 125 can selectively press or release the contact 151 when the rotation unit rotates to switch the micro switch 15 between the first state and the second state. By setting the detection unit to be a contact-type microswitch, the trigger part 125 presses the contact 151 to realize the state switching of the microswitch 15, so that the state switching time of the detection unit can be better grasped, the grasping accuracy of the switching time can be better ensured, and the interference of external influence on the detection of the detection unit can be avoided. In other embodiments, the detection unit may also be a non-contact switch, such as a proximity switch, and in this case, the trigger 125 may be close to or far from the proximity switch to switch the proximity switch between the first state and the second state.

In the present embodiment, in the unlocked state, the trigger 125 is in a state of being out of contact with the contact 151, and the micro sensor is in an off state, that is, the off state is the second state; in the locked state, the trigger 125 presses the contact 151, and the micro switch 15 is in the closed state, i.e., the closed state is the first state. By the arrangement, whether the door lock assembly 1 and the door opening and closing mechanism 2 are in a locking state can be judged by judging whether the microswitch 15 is closed, misjudgment caused by damage of the microswitch 15 is avoided, and detection precision and reliability are improved. In other embodiments, the trigger 125 presses against the contact 151 in the unlocked state, and the micro switch 15 is in the closed state, while the trigger 125 is separated from the contact 151 in the locked state, and the micro switch 15 is in the open state.

As shown in fig. 9 to 19, to facilitate the installation of the door lock assembly 1 on the door body 3, the door lock assembly 1 includes a bracket 13, the bracket 13 is detachably installed on the door body 3, a rotating unit is rotatably installed on the bracket 13 through a rotating shaft 16, and a micro switch 15 is detachably installed on the bracket 13. The support 13 is favorable for improving the integration and the modularization degree of the door lock assembly 1 and improving the installation convenience of the door lock assembly 1 on the door body 3.

In order to position the mounting position of the bracket 13 on the door body 3, the door liner 32 is provided with a positioning hole 323, and the bracket 13 is provided with a positioning boss 132, wherein the positioning boss 132 is inserted into the positioning hole 323 and attached to the hole wall of the positioning hole 323. The positioning bosses 132 and the positioning holes 323 can limit the left and right positions and the up and down positions of the bracket 13 corresponding to the door body 3, and ensure the accuracy of the mounting position of the bracket 13. Preferably, the positioning hole 323 is a rectangular hole, and has the advantages of simple structure, easy processing and reliable limiting. In other embodiments, the positioning boss 132 and the positioning hole 323 may have other shapes.

In this embodiment, the door liner 32 includes a door liner main body of a rectangular box-packed structure, an opening of the door liner main body faces the outer door 31, the door liner main body has an annular peripheral wall 321 of a rectangular ring-shaped structure, the annular peripheral wall 321 is perpendicular to the outer door 31, an edge plate portion 322 is perpendicularly connected to one side of the annular peripheral wall 321 facing the outer door 31, the edge plate portion 322 is detachably connected to the outer door 31, a positioning hole 323 is formed in the edge plate portion 322, and the support 13 is detachably connected to the annular peripheral wall 321.

The locking part 113 is disposed inside the door body 3, in order to make the locking tongue 211 and the locking part 113 cooperate, an insertion hole 133 penetrating the positioning boss 132 is opened on the bracket 13, the locking part 113 is located at the front side of the insertion hole 133, and the locking tongue 211 can pass through the insertion hole 133, so that the locking part 113 is clamped into the buckle opening 2111.

In order to ensure that the latch portion 211 is smoothly inserted into the insertion hole 133, the front end of the latch portion 211 is a circular arc surface to avoid an edge, and to provide guidance for inserting the latch portion 211 into the insertion hole. Furthermore, the left side and the right side of the locking tongue portion 211 are provided with guide surfaces, and the guide surfaces are inclined from back to front to the other guide surface, so that the front end of the locking tongue portion 211 is of a tapered structure, which is more beneficial to guiding the locking tongue portion 211 inserted into the insertion hole 133, and the locking tongue portion 211 is prevented from being stuck in the process of inserting into the insertion hole 133.

In order to better guide the latch portion 211 into the insertion opening 133, the front end of the bracket 13 further has a guide portion 134, the guide portion 134 is located below the positioning boss 132, the door liner 32 is provided with an escape opening 324 through which the guide portion 134 extends out of the inner surface of the door liner 32, the escape opening 324 is communicated with the positioning hole 323, the guide portion 134 has an insertion guide surface 1341, and the insertion guide surface 1341 extends downward and rearward from the lower side edge of the insertion opening 133.

Further, the bracket 13 is detachably connected with the door liner 32 through screws, so as to ensure the reliability and stability of the connection of the door lock on the door body 3. The bracket 13 is provided with an upper mounting surface which is attached to the inner upper surface of the door liner 32, the upper end of the annular peripheral wall 321 is provided with a connecting through hole 325, the bracket 13 is provided with a connecting threaded hole 139 on the upper mounting surface, and the door liner 32 is connected with the bracket 13 through a screw penetrating through the connecting threaded hole 139 and the connecting through hole 325. The connection through-holes 325 are provided one on each of the left and right sides of the positioning hole 323 to increase connection stability and force stability. The attachment through-hole 325 is preferably a counter-sunk hole to avoid scratching the user by protruding the screw head.

Further, the bracket 13 further has a front positioning surface which is vertically disposed, the positioning boss 132 is protrudingly disposed on the front positioning surface, and the front positioning surface abuts against the inner surface of the upper end edge plate portion 322, whereby the front and rear mounting positions of the bracket 13 and the door liner 32 can be better defined. That is, by providing the front positioning surface, the upper mounting surface, and the positioning boss 132, the front-rear position, the left-right position, and the up-down position of the bracket 13 with respect to the door liner 32 can be defined, and the assembling accuracy of the bracket 13 and the door liner 32 can be ensured.

In order to facilitate the installation of the rotating unit on the bracket 13, the upper end of the bracket 13 is convexly provided with an installation boss 131, the top of the bracket 13 is convexly provided with the installation boss 131, the installation boss 131 is provided with a main installation cavity 1311 with an open front side, the rear side of the installation boss 131 is provided with an insertion hole 133 for inserting the locking tongue portion 211 into the main installation cavity 1311, the rotating unit is at least partially positioned in the main installation cavity 1311, and the locking buckle portion 113 can be rotatably arranged in the main installation cavity 1311. The rotation shaft 16 is provided in the left-right direction, and both ends of the rotation shaft 16 are connected to left and right side walls of the main mounting chamber 1311.

Further, the trigger part 125 and the latch part are respectively located on two opposite sides of the rotating shaft 16, specifically, the latch part 113 is disposed on the upper side of the rotating shaft 16, and the trigger part 125 is disposed on the lower side of the rotating shaft 16, so that the occupation of the space on the upper side of the rotating shaft 16 on the door body 3 is reduced, and the installation convenience of the door lock assembly 1 on the door body 3 is improved while the height position of the latch part 113 is matched with the height position of the latch part 211.

In order to improve the smoothness of the locking portion 113 being inserted into the locking notch 2111, the locking portion 113 is provided with a locking guide surface 1131, and when the door body 3 is closed and the door lock assembly 1 is in the unlocking state, the locking guide surface 1131 extends upward from back to front in an inclined manner. When the locking tongue portion 211 is inserted into the main mounting cavity 1311, the front end of the locking tongue portion 211 first abuts against the fastening guide surface 1131, and as the locking tongue portion 211 continues to extend forward, the front end of the locking tongue portion 211 pushes the locking part 113 to turn forward, that is, the lower end of the rotating unit is driven to turn backward; meanwhile, under the action of the engagement guide surface 1131 and the guide surface on the lower side of the front end of the locking portion 113, the latch portion 211 slides along the engagement guide surface 1131 until the locking portion 113 is pushed into the locking opening 2111, at this time, the trigger portion 125 abuts against the contact 151, and the micro switch 15 is in a conducting state.

In order to ensure that the locking portion 113 can exit the fastening opening 2111 when the lock bar 21 is pulled back, the locking portion 113 further includes a release guide surface 1132, the release guide surface 1132 is connected to the fastening guide surface 1131 at an included angle, and when the door lock assembly 1 is in the unlocking state, the release guide surface 1132 is located in front of the fastening guide surface, and the upper end of the release guide surface 1132 is connected to the fastening guide surface 1131; when the door lock assembly 1 is in the locked state, the trip guide surface 1132 abuts against the front side wall of the snap opening 2111, and the trip guide surface 1132 is substantially vertically disposed. When the door body 3 is closed and the lock rod 21 is pulled back, the lock tongue portion 211 abuts against the tripping guide surface 1132 and slides along the tripping guide surface 1132, so that the lock catch portion 113 turns backwards, and the trigger portion 125 at the lower end of the rotating unit is driven to turn forwards, so that the trigger portion 125 gradually releases the contact 151; meanwhile, the trip guide surface 1132 is changed from a substantially vertical state to a state of being inclined downward from front to back in the rotation process, so that the front side wall of the buckle opening 2111 slides along the trip guide surface 1132, the locking part 113 is extruded out of the buckle opening 2111, the door lock assembly 1 and the door opening and closing mechanism 2 are unlocked, the trigger part 125 is completely separated from the contact 151, and the micro switch 15 is switched to an off state.

In order to prevent the locking portion 113 from scratching the locking portion 211 when the locking portion 113 is inserted into or withdrawn from the locking notch 2111, the locking portion 113 further has an arc transition surface 1133, the arc transition surface 1133 is connected to a lower end of the release guide surface 1132, and the lower end is tangent to other structural surfaces of the rotating unit.

The rotating unit preferably includes a first rotating body 11 and a second rotating body 12 which are separated and synchronously coupled, the first rotating body 11 and the second rotating body 12 are both sleeved on the rotating shaft 16, the upper end of the first rotating body 11 is provided with a locking part 113, and the second rotating body 12 is provided with the above-mentioned triggering part 125. By providing the first rotating body 11 and the second rotating body 12 in which the rotating units are separated and linked, the structural arrangement of the first rotating body 11 and the second rotating body 12 can be simplified, the flexibility of the shape design of the rotating units can be improved, and the difficulty in processing the rotating units can be reduced. In other embodiments, the rotary unit may also be designed in one piece.

Preferably, one side of the connecting portion 122 facing the first rotating body 11 has a pressing surface 1221, the first rotating body 11 has a pressing surface 1111, and the pressing surface 1111 is attached to the pressing surface 1221, so that the rotation of the first rotating body 11 synchronously presses the second rotating body 12 to rotate. In this arrangement, the first rotating body 11 and the second rotating body 12 are always kept in contact with each other, so that the first rotating body 11 and the second rotating body 12 are interlocked with each other, and a fastening structure is not required to be provided therebetween. In other embodiments, the first rotating body 11 and the second rotating body 12 can be fastened together by a snap-fit structure or a screw-on structure, so as to ensure the linkage of the first rotating body 11 and the second rotating body 12.

In order to reduce the overall size of the rotating unit, the second rotating body 12 includes two rotating arms 121 disposed opposite to each other in the left-right direction at intervals and a connecting portion 122 connected between first ends of the two rotating arms 121, the connecting portion 122 and the two rotating arms 121 surround to form a U-shaped structure with an opening facing away from the inner surface of the door body 3, second shaft holes 1211 are formed along second ends of the two rotating arms 121, the rotating shaft 16 is inserted into the second shaft holes 1211 of the two rotating arms 121, the first rotating body 11 is located between the two rotating arms 121, and the connecting portion 122 is located at the rear side of the rotating shaft 16. This arrangement allows the first rotating body 11 to be located inside the second rotating body 12, and can reduce the overall size of the rotating unit and improve the flexibility of the location of the trigger 125 while improving the force balance of the rotating unit.

Further, the rotating arms 121 and the first rotating body 11 are located inside the mounting cavity, the micro switch 15 is mounted outside the main mounting cavity 1311, in order to enable the trigger portion 125 to act on the contact 151 on the micro switch 15, at least one rotating arm 121 is connected with an extending arm portion 123, the extending arm portion 123 extends in the left-right direction and extends out of the main mounting cavity 1311, the pressing arm portion 124 extends towards the rear lower direction from the tail end of the extending arm portion 123, and the trigger portion 125 is arranged at the tail end of the pressing arm portion 124. The provision of the extension arm portion 123 and the pressing arm portion 124 can increase the distance between the trigger portion 125 and the first rotation body 11, and reduce the need for the mounting position of the microswitch 15.

Preferably, each rotating arm 121 is connected to an extending arm portion 123, each extending arm portion 123 is connected to a pressing arm portion 124, and the other pressing arm portion 124 is provided with a pressing protrusion, when the trigger portion 125 presses the contact 151, the pressing protrusion presses against the bracket 13, so as to improve the force balance of the second rotating body 12.

Further, for limiting the rotation angle of the rotation unit, the door lock assembly 1 further has a rotation limiting structure, in this embodiment, the limiting structure includes a limiting portion 138 disposed on the bracket 13, the ends of the two extension arm portions 123 form a limiting end, the limiting portion 138 and the limiting end are disposed in a one-to-one correspondence, the limiting portion 138 is located at the front side of the limiting end and can abut against the limiting end to limit the second rotating body to turn backwards, so as to limit the rotation of the rotation unit.

The first rotating body 11 is provided with a first shaft hole 116 through which the rotating shaft 16 passes, the first shaft hole 116 and the second shaft hole 1211 are both elongated holes, and the rotating shaft 16 is slidably inserted through the elongated holes along the longitudinal direction of the elongated holes. The pivot axis 16 is located at the upper end of the elongated hole when the door lock assembly 1 is in the unlocked condition and the pivot axis 16 is located at the lower end of the elongated hole when the door lock assembly 1 is in the locked condition. This arrangement enables the upper end of the first rotating body 11 to slide forward relative to the rotating shaft 16 when the latch portion 211 is rotated against the latch portion 113, thereby reducing friction and impact of the latch lever 21 on the first rotating body 11 and improving the service life of the rotating unit.

Further, the door lock assembly further comprises an elastic member 14, the elastic member 14 being configured to apply a force to the rotation unit to maintain the door lock assembly in the locked state when the door lock assembly is in the locked state. The arrangement of the elastic piece 14 enables the elastic piece 14 to apply a pretightening force for keeping the locked state to the rotating unit when the door lock assembly is in the locked state, so that when the door body 3 is opened and the lock rod 21 drives the door body 3 to pull back, the lock tongue portion 211 and the lock catch portion 113 cannot be separated, thereby better ensuring that the lock rod 21 can drive the door body 3 to be closed under the condition of keeping the locked state with the lock catch portion 113, and further improving the operation reliability of the door lock assembly 1 and the door opening and closing device. When the door body 3 is closed and the lock rod 21 is retracted continuously, the lock rod 21 cannot drive the door body 3 to move continuously, and only the force for rotating the rotating unit can be applied to the rotating unit, so that the lock rod 21 moves backwards relative to the locking part 113 under the action of a large pulling force to unlock the locking part 113.

In this embodiment, the elastic member 14 is a tension spring, one end of which is connected to the first rotating body 11, and the second end of which is connected to the bracket 13. In this embodiment, the locking portion 113 is disposed at the top end of the first rotating body 11, the rear side of the lower end of the first rotating body 11 abuts against the second rotating body 12, and thus, the front end of the tension spring is preferably connected with the lower end of the first rotating body 11, the rear end of the tension spring is connected with the bracket 13, and in the locking state, the tension spring is in the elongated state to apply a force to the first rotating body 11 to force the lower end of the first rotating body 11 to turn backwards, so that the rear side of the lower end of the first rotating body 11 abuts against the front side of the upper end of the second rotating body 12 tightly, and the triggering portion 125 on the second rotating body 12 abuts against the contact 151. More preferably, the elastic member 14 is in a natural state when the door lock assembly 1 is unlocked from the latch tongue portion 211.

In order to facilitate the installation of the elastic element 14, the first rotating body 11 includes two installation arm portions 111 facing each other in the left-right direction and spaced apart from each other, a connection arm portion 112 is connected between upper ends of the two installation arm portions 111, and a first shaft hole 116 penetrating in the left-right direction is formed by the installation arm portion 111 and the connection arm portion 112 in a surrounding manner. The upper end of the connecting arm 112 is provided with the above-mentioned latch portion, and when the door lock assembly 1 is in the unlocked state, the engaging guide surface 1131 is higher than the rest of the structure on the first rotating body 11. The first rotor 11 further includes a coupling shaft portion 114 coupled to lower ends of the two mounting arm portions 111, and a first end of the elastic member 14 is provided with a hook 141, and the hook 141 is hooked on the coupling shaft portion 114.

Further, in order to reduce the weight of the first rotating body 11, a lightening groove 1112 is preferably provided on each mounting arm portion 111. In order to enhance the overall structural strength of first rotor 11, first rotor 11 further includes reinforcing rib portion 115, and reinforcing rib portion 115 is U-shaped, and both sides of reinforcing rib portion 115 are connected to opposite sides of two mounting arm portions 111, respectively, and the bottom of reinforcing rib portion 115 is connected to connecting arm portion 112.

To facilitate the mounting of the elastic member 14 on the bracket 13, the rear end of the bracket 13 is provided with a bayonet 1371, and the rear end of the tension spring is snapped in the bayonet 1371. Specifically, the bracket 13 has a tension spring mounting portion 137 thereon, the tension spring mounting portion 137 is located at the bottom of the bracket 13, and the tension spring mounting portion 137 extends rearward to the rear side of the protruding mounting boss 131. Extension spring mounting portion 137 has the chamber that holds that communicates with main installation cavity 1311, holds the below that the chamber is located main installation cavity 1311, and extension spring mounting portion 137's rear side is opened and is equipped with bayonet 1371. Annular groove 142 is seted up to the rear end of extension spring, and the circumference cell wall of annular groove 142 is worn to establish in bayonet 1371, and the cell wall at the relative both ends of annular groove 142 is crossed from bayonet 1371 by spacing, makes the rear end of extension spring by spacing installation in bayonet 1371 from this.

Further, bottom opening 1372 has been seted up to the bottom of extension spring installation department 137, and bottom opening 1372 communicates with bayonet 1371, and the setting of bottom opening 1372 can allow the extension spring part to pass through bottom opening 1372 on the one hand, and on the other hand can alleviate the whole weight of support 13.

To facilitate the installation of the microswitch 15 on the bracket 13, the bracket 13 includes the bracket 13 with a switch mounting portion 135, the switch mounting portion 135 has a switch mounting cavity 1351, the microswitch 15 is at least partially inserted in the switch mounting cavity 1351, and the switch mounting portion 135 is provided with a notch for exposing the contact 151. Switch installation chamber 1351's setting can protect micro-gap switch 15 better, avoids all the other structures to cause the collision to micro-gap switch 15, and the breach preferred is located the upside of installation department.

In order to improve the installation stability of the micro switch 15, further, the housing of the micro switch 15 has an insertion hole 152, the insertion hole 152 is exposed out of the switch installation cavity 1351, the switch installation portion 135 further has an insertion protrusion 1352, and the insertion protrusion 1352 is inserted into the insertion hole 152. The matching of the plug-in protrusion 1352 and the plug-in hole 152 can prevent the micro switch 15 from sliding in the switch mounting cavity 1351, and ensure the mounting stability of the micro switch 15.

Further, the bracket 13 further includes a baffle portion 136, and the switch mounting portion 135 is located on the front side of the baffle portion 136. The setting of baffle portion 136 can shelter from micro-gap switch 15, avoids lock subassembly 1 in the installation, and door lining 32 bumps with micro-gap switch 15, improves the protection to micro-gap switch 15.

It should be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (12)

1. The utility model provides a dishwasher, includes organism (4) and the door body (3), the lower extreme of the door body (3) with organism (4) rotate to be connected, its characterized in that still includes the switch door gear, the switch door gear including install in the switch door mechanism (2) at organism (4) top with install in lock subassembly (1) at the door body (3) top, switch door mechanism (2) have latch portion (211), latch portion (211) can be relative organism (4) stretch out forward with lock subassembly (1) closure and retract backward with lock subassembly (1) unblock.

2. The dishwasher of claim 1, wherein when the dishwasher is in a state that the door lock assembly (1) is locked with the latch portion (211), the latch portion (211) can push the door lock assembly (1) by being extended forward to open the upper end of the door body (3) by a predetermined gap, and the latch portion (211) can hook the door lock assembly by being retracted backward to close the opened door body (3).

3. The dishwasher of claim 1 or 2, characterized in that the door opening and closing device further has a detection unit having a first state and a second state, the detection unit triggering different signals in the first state and the second state;

when the bolt portion (211) is locked with the door lock assembly (1), the detection unit is in the first state, and when the bolt portion (211) is unlocked with the door lock assembly (1), the detection unit is in the second state.

4. The dishwasher of claim 3, wherein the door lock assembly (1) comprises a rotation unit rotatably mounted to the door body (3) by a rotation shaft (16), the rotation unit having a latch portion (113) engaged with the latch portion (211), and the rotation unit having a trigger portion (125), the trigger portion (125) having a trigger position triggering the detection unit to switch between the first state and the second state.

5. The dishwasher of claim 4, characterized in that the detection unit comprises a microswitch (15), the microswitch (15) having a contact (151), the trigger (125) being able to selectively press or release the contact (151) upon rotation of the rotation unit to switch the microswitch (15) between the first state and the second state.

6. The dishwasher according to claim 5, characterized in that the trigger portion (125) presses down the contact (151) when the latch portion (113) is latched with the latch portion (211), and the trigger portion (125) comes out of contact with the contact (151) when the latch portion (113) is unlatched from the latch portion (211).

7. The dishwasher according to claim 4, characterized in that the locking portion (113) is located at an upper side of the rotation shaft (16) and the triggering portion (125) is located at a lower side of the rotation shaft (16);

and/or the rotating shaft (16) can rotate around the axis thereof.

8. The dishwasher of claim 4, characterized in that the rotating unit comprises a first rotating body (11) and a second rotating body (12) which are synchronously coupled, the first rotating body (11) and the second rotating body (12) are both rotatably sleeved on the rotating shaft (16), the latch part (113) is arranged on the first rotating body (11), and the trigger part (125) is arranged on the second rotating body (12).

9. The dishwasher of claim 4, characterized in that the door lock assembly (1) further comprises a spring (14), the spring (14) being adapted to apply a force to the rotary unit that keeps the rotary unit in the locked position when the door lock assembly (1) is locked with the latch tongue (211).

10. The dishwasher of claim 9, characterized in that the resilient member (14) is in a natural state when the door lock assembly (1) is unlocked from the latch tongue (211).

11. The dishwasher of any one of claims 1 or 2, wherein the door lock assembly (1) has a locking portion (113) for cooperating with the latch portion (211), the latch portion (211) has a locking notch (2111) opened thereon, and when the locking portion (113) is locked into the locking notch (2111), the door lock assembly (1) is locked with the latch portion (211).

12. The dishwasher of claim 11, wherein the locking portion (113) has a locking guide surface (1131), and a front end of the locking portion (211) can push against the locking guide surface (1131) and slide relative to the locking guide surface (1131) to press the locking portion (113) into the locking opening (2111);

and/or, the latch part (211) has a tripping guide surface (1132), and when the latch part (211) retracts backwards relative to the door body (3), the latch part (211) can press against the tripping guide surface (1132) and slide relative to the tripping guide surface (1132), so that the locking part (113) is disengaged from the buckling opening (2111).

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