CN217841179U - Door lock assembly, door assembly and household appliance - Google Patents

Abstract

The utility model belongs to the technical field of household electrical appliances, a lock subassembly, door subassembly and domestic appliance are specifically disclosed. The door lock assembly is used for being matched with the bolt part to unlock or lock and comprises a bracket; the detection unit is arranged on the bracket and has a first state and a second state which mark different detection signals; the rotating unit is rotatably installed on the support through a rotating shaft and is provided with a lock catch portion and a trigger portion, the lock catch portion is used for being matched with the lock tongue portion, the lock catch portion can be pushed by the lock tongue portion to rotate, and therefore the trigger portion triggers the detection unit to switch between the first state and the second state. The door assembly comprises the door lock assembly, and the household appliance comprises the door assembly. The utility model discloses a lock subassembly, door subassembly and domestic appliance can improve domestic appliance safety in utilization and reliability.

Description

Door lock assembly, door assembly and household appliance

Technical Field

The utility model belongs to the technical field of electrical apparatus, especially, relate to a lock subassembly, door subassembly and domestic appliance.

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 usually comprises a dishwasher body and a dishwasher door hinged with the dishwasher body, 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 common 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.

The existing dishwasher is generally provided with a detection unit for detecting whether a door lock is locked, however, a door lock assembly and the detection unit are generally arranged separately, so that the detection result is inaccurate due to external action or error when the detection assembly detects; moreover, the detection unit on the existing dishwasher can only detect the locking state of the door lock when the door body is in a closed state, and cannot effectively judge the relationship between the door body and the dishwasher body after the top end of the door body is opened by a preset angle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lock subassembly, door subassembly and domestic appliance to improve domestic appliance's degree of automation, and improve domestic appliance's safety in utilization and reliability.

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

a door lock assembly for unlocking or locking in cooperation with a bolt portion, the door lock assembly comprising:

a support;

the detection unit is arranged on the bracket and has a first state and a second state for marking different detection signals;

the rotating unit is rotatably arranged on the support through a rotating shaft and is provided with a lock catch portion and a triggering portion, the lock catch portion is used for being matched with the lock tongue portion, and the lock catch portion can be pushed by the lock tongue portion to rotate, so that the triggering portion triggers the detection unit to be switched between the first state and the second state.

As an optional technical scheme of a door lock assembly, the rotating unit comprises a first rotating body and a second rotating body which are separately arranged and synchronously linked, the first rotating body and the second rotating body are sleeved on the rotating shaft, one of the first rotating body and the second rotating body is provided with the locking part, and the other of the first rotating body and the second rotating body is provided with the triggering part.

As an optional technical scheme of the door lock assembly, the lock catch part is arranged on the first rotating body, and the trigger part is arranged on the second rotating body.

As an optional technical scheme of the door lock assembly, the second rotating body is provided with a pushing surface, the first rotating body is provided with a pressing surface, and the pressing surface is attached to the pushing surface, so that the rotation of the first rotating body synchronously pushes the second rotating body to rotate.

As an optional technical scheme of a door lock assembly, the second rotating body includes two rotating arms arranged oppositely and at an interval and a connecting portion connected between the two rotating arms, the first rotating body is located between the two rotating arms, the rotating shaft is rotatably arranged through the first rotating body and the two rotating arms, and the triggering portion is located on one side of one rotating arm away from the other rotating arm.

As an optional technical solution of a door lock assembly, at least one of the rotation arms has an extension arm portion extending along an axial direction of the rotation shaft, a pressing arm portion extending along a radial direction of the rotation shaft is provided at a tip of the extension arm portion, and the pressing arm portion is provided with the trigger portion.

As an optional technical scheme of the door lock assembly, the first rotating body is provided with a first shaft hole for the rotating shaft to penetrate through, the second rotating body is provided with a second shaft hole for the rotating shaft to penetrate through, the first shaft hole and the second shaft hole are both strip holes, and the rotating shaft can penetrate through the strip holes in a sliding manner along the length direction of the strip holes.

As an optional technical solution of a door lock assembly, the door lock assembly has a locked state locked with the lock tongue portion and an unlocked state unlocked with the lock tongue portion, and the door lock assembly further includes an elastic member for applying a force to the rotating unit to hold the door lock assembly in the locked state when the door lock assembly is in the locked state.

As an optional technical solution of a door lock assembly, the detection unit includes a microswitch, the microswitch has a contact, and the trigger portion can selectively press or release the contact, so that the microswitch is switched between the first state and the second state.

As an optional technical scheme of a door lock subassembly, the support has the switch installation department, the switch installation department has the switch installation chamber, micro-gap switch at least part is inserted and is located in the switch installation chamber, just the confession has been seted up to the switch installation department the exposed breach of contact.

As an optional technical scheme of the door lock assembly, a casing of the microswitch is provided with an insertion hole, the insertion hole is exposed out of the switch installation cavity, the switch installation part is also provided with an insertion protrusion, and the insertion protrusion is inserted into the insertion hole;

and/or, the support still includes the baffle, the switch installation department is located the front side of baffle.

As an optional technical scheme of a door lock subassembly, the protruding installation boss that is equipped with in top of support, the installation boss has front side open-ended main installation cavity, the rear side of installation boss is opened and is equipped with the confession the spring bolt portion inserts the inserted hole of main installation cavity, the hasp portion can set up with rotating in main installation cavity, detecting element is located outside the main installation cavity.

As an optional technical scheme of the door lock assembly, a positioning boss is convexly arranged on the rear side surface of the mounting boss, and the insertion hole penetrates through the positioning boss;

and/or the rear side of the mounting boss is provided with an insertion guide surface, the insertion guide surface extends downwards from front to back in an inclined manner, and the upper end of the insertion guide surface is connected with the lower side edge of the insertion opening.

The door assembly comprises a door body and the door lock assembly, wherein the door lock assembly is arranged inside the upper end of the door body, and the inner surface of the door body is provided with a positioning hole for the bolt part to pass through.

As an optional technical scheme of the door assembly, a positioning boss is convexly arranged on one side of the support facing the inner surface of the door body, the positioning boss is inserted into the positioning hole and attached to the side wall of the positioning hole, the positioning boss is provided with an insertion hole for the lock tongue to pass through, and the lock catch part is positioned on the front side of the insertion hole.

As an optional technical scheme of the door assembly, the door body comprises an outer door and a door liner arranged on the inner side of the outer door, and the rotating unit and the detecting unit are positioned between the door liner and the outer door;

and/or the door body comprises an outer door and a door lining arranged on the inner side of the outer door, the door lining comprises an annular peripheral wall, the annular peripheral wall is perpendicular to the outer door, one side of the annular peripheral wall, facing the outer door, is outwards and vertically connected with an edge plate part, the edge plate part is detachably connected with the outer door, the edge plate part is provided with the positioning hole, and the support is detachably connected with the annular peripheral wall.

As an optional technical scheme of the door assembly, the bracket comprises an upper mounting surface which is horizontally arranged, and the upper mounting surface is attached to the inner surface of the annular peripheral wall and detachably connected with the inner surface of the annular peripheral wall;

and/or the bracket comprises a vertically arranged front mounting surface, and the front mounting surface is attached to the inner surface of the edge plate part.

The utility model provides a household appliance, includes the organism, still includes as above door subassembly, the lower extreme and the organism of door subassembly rotate to be connected, the upper end of organism is provided with the lock tongue portion, the lock tongue portion can insert in the locating hole relatively with the cooperation of hasp portion, the lock tongue portion can withdraw from the locating hole in order with the unblock of hasp portion, and when lock tongue portion and hasp portion lock, detecting element is in the first state, when lock tongue portion and hasp portion unblock, detecting element is in the second state.

The beneficial effects of the utility model reside in that:

the utility model provides a door lock assembly, through set up hasp portion and trigger part on the rotation unit, make trigger part trigger detecting element carry out the action that the state switches and the action of hasp portion unblock or closure unanimous mutually, can effectively guarantee when hasp portion accomplishes the lock with hasp portion, trigger part can trigger detecting element and switch to first state, when hasp portion unblock, trigger part can trigger detecting element and switch to the second state, improve detecting element testing result's reliability, reduce detecting element misjudgement's probability.

The embodiment of the utility model provides a door subassembly through adopting foretell lock subassembly, can improve the accuracy and the reliability of judging whether the door body is the locking.

The embodiment of the utility model provides a household appliance, through adopting foretell door subassembly, can improve household appliance's operational safety and reliability.

Drawings

FIG. 1 is a schematic structural diagram of a dishwasher according to 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 in accordance with 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 view of the first rotating body according to the 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. shaft perforation; 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 tongue locking 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 to be construed as limiting 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 expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to 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 automatically opens the door at a preset angle in a drying stage, and automatically closes the door after the door is opened at the preset angle, so that the drying efficiency of the dishwasher is improved, and the automation of the dishwasher is improved.

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 assembly 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 the 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 cross beams which are opposite up and down and are arranged at intervals and longitudinal beams connected between the two cross beams, the cross beams extend along the left-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 also comprises a door opening and closing device, the door opening and closing device comprises a door opening and closing mechanism 2 arranged on the top of the machine body 4 and a door lock assembly 1 arranged on the top of the door body 3, the door opening and closing mechanism 2 is provided with a bolt part 211, and the bolt part 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 but the whole of switch door mechanism 2 formation independent disassembly, 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 around 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 penetrate 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 horizontal mounting surface is matched with the bottom positioning surface 222, so that the mounting shell 22 is kept horizontal during mounting, and the lower limit of the mounting position of the mounting shell 22 is also ensured by the surface contact mode of the horizontal mounting surface and 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 horizontal plate 421 is bent vertically upward to form a connecting plate 424, the upper end of the connecting plate 424 is bent vertically rearward 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 43 and the mounting case 22, increase the support stability of the mounting case 22, and contribute to further ensuring 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 limitation of the door opening and closing mechanism 2, it is preferable that a groove 431 is formed inward in a part of the bladder top plate, and the rear end of the mounting case 22 abuts against the groove bottom of the groove 431. With the arrangement, the rear part of the installation space is larger in thickness, 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 43.

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 224. 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, middle transmission assembly and gear rack subassembly, and the gear 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 middle transmission assembly 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 to be 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 through which the lock rod 21 passes 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 at 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 movement process. Preferably, the thickness of the locking tongue portion 211 is smaller than that of the rod body 212, the upper surface of the locking tongue portion 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 locking tongue portion 211 are transitionally connected by a curved surface which is obliquely arranged from front to back, so that the height of the locking tongue portion 211 is reduced while the overall structural rigidity and strength of the locking rod 21 are ensured, and the convenience of matching the locking tongue portion 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.

To detect the engagement state of the latch portion 211 with the door lock assembly 1 to precisely control the operation of the dishwasher, the opening and closing door device has a detection unit having a first state and a second state identifying different detection signals, and the detection unit is configured to: the lock tongue portion 211 has a first state when being locked with the door lock assembly 1, has a second state when being unlocked with the door lock assembly 1, 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 closure of spring bolt portion 211 and lock subassembly 1 to avoid when spring bolt portion 211 and lock subassembly 1 are not locked, make locking lever 22 stretch out forward and push open the problem that the door body 3 that leads to topples down under the action of gravity with 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.

By the arrangement, the action of the trigger part 125 for triggering the detection unit to switch the states 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, thereby improving the reliability of the detection result of the detection unit and reducing the probability of misjudgment of the detection unit.

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 timing of the state switching of the detection unit can be better grasped, the accuracy of grasping the timing of the switching 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, the bracket 13 is provided with a positioning boss 132, and 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 lining 32 includes a door lining main body of a rectangular box-packed structure, the opening of the door lining main body faces the outer door 31, the door lining 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, a side of the annular peripheral wall 321 facing the outer door 31 is perpendicularly connected with an edge plate portion 322 outwards, the edge plate portion 322 is detachably connected with the outer door 31, a positioning hole 323 is formed on the edge plate portion 322, and the bracket 13 is detachably connected with 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 tongue-locking 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 obliquely from the lower side edge of the insertion opening 133 to the rear lower side.

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-receiving 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 an inner surface of the edge plate portion 322 at the upper end, thereby enabling to better define the front and rear mounting positions of the bracket 13 and the door lining 32. That is, by providing the front positioning surface, the upper mounting surface, and the positioning bosses 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 disposed in the left-right direction, and both ends of the rotation shaft 16 are connected to left and right side walls of the main installation chamber 1311.

Further, trigger portion 125 and the tongue portion are located the opposite both sides of axis of rotation 16 respectively, and specifically, lock catch portion 113 sets up the upside at axis of rotation 16, and trigger portion 125 sets up the downside at axis of rotation 16, reduces the occupation to door body 3 in the space of axis of rotation 16 upside from this, when guaranteeing that the high position of lock catch portion 113 can with the high position phase-match of tongue portion 211, improves the installation convenience of lock subassembly 1 on door body 3.

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 latch tongue portion 211 is inserted into the main mounting cavity 1311, the front end of the latch tongue portion 211 first abuts against the fastening guide surface 1131, and as the latch tongue portion 211 continues to extend forward, the front end of the latch 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 tongue 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 rod 21 is pulled back, the locking portion 113 further includes a tripping guide surface 1132, the tripping guide surface 1132 is connected to the fastening guide surface 1131 at an included angle, and when the door lock assembly 1 is in an unlocked state, the tripping guide surface 1132 is located on the front side of the locking guide surface, and the upper end of the tripping 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 lever 21 is pulled back, the latch portion 211 abuts against the trip guiding surface 1132 and slides along the trip guiding surface 1132, so that the latch portion 113 is turned over backward, and the trigger portion 125 at the lower end of the rotating unit is driven to turn over forward, 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 switch mechanism 2 are unlocked, the trigger part 125 is completely separated from the contact 151, and the micro switch 15 is switched to a disconnected state.

In order to prevent the locking portion 113 from being scratched when being inserted into or withdrawn from the locking opening 2111, the locking portion 113 further has an arc transition surface 1133, the arc transition surface 1133 is connected to the lower end of the trip 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 linked, the first rotating body 11 and the second rotating body 12 are both sleeved on the rotating shaft 16, one of the first rotating body 11 and the second rotating body 11 is provided with a locking part 113, and the other of the first rotating body 11 and the second rotating body 12 is provided with a triggering part 125. By providing the first rotor 11 and the second rotor 12 as separate bodies and linking the rotor, the structural arrangement of the first rotor 11 and the second rotor 12 can be simplified, the flexibility of the shape design of the rotor can be improved, and the difficulty in processing the rotor can be reduced. In other embodiments, the rotary unit may also be designed in one piece.

In this embodiment, the upper end of the first rotating body 11 is provided with a locking portion 113, and the second rotating body 12 is provided with the above-mentioned triggering portion 125, i.e. the rotation of the first rotating body 11 drives the second rotating body 12 to rotate.

Preferably, the connecting portion 122 has a pressing surface 1221 on a side facing the first rotating body 11, 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 by a clamping structure or a screwing 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 length 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 section 211 rotates against the push latch section 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 a spring 14, the spring 14 being adapted to apply a force to the turning unit to hold 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, the lock rod 21 cannot drive the door body 3 to move continuously, and only can apply a force to the rotating unit to rotate 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, a first end of which is connected to the first rotating body 11 and a 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, when the door lock assembly 1 is unlocked from the latch tongue 211, the elastic member 14 is in a natural state.

In order to facilitate the installation of the elastic member 14, the first rotating body 11 includes two installation arm portions 111 arranged opposite to each other at intervals in the left-right direction, 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 portions 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 connecting shaft portion 114 connected to the lower ends of the two mounting arm portions 111, and a hook 141 is provided at a first end of the elastic member 14, and the hook 141 is hooked on the connecting 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 installation of the elastic element 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 clamped 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 installation department 137 has the chamber that holds with main installation cavity 1311 intercommunication, holds the below that the chamber is located main installation cavity 1311, and the rear side of extension spring installation department 137 opens 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. Due to the arrangement of the baffle portion 136, the micro switch 15 can be shielded, the door lock assembly 1 is prevented from colliding with the micro switch 15 in the installation process, and the protection of the micro switch 15 is improved.

It can be understood that the above-mentioned structure of the door lock assembly 1 and the latch part 211 can also be applied to other household appliances, such as a steam oven and other devices having a door body 3 and a machine body 4, at this time, the structure of the door lock assembly 1 can refer to the above-mentioned structure, the installation on the door body 3 can also refer to the application on a dishwasher, and meanwhile, the latch part 211 may not have a telescopic function, that is, the latch part 211 may be fixed relative to the machine body, and there is no need to configure a telescopic driving unit, so that the latch part 211 is only matched with the door lock assembly 1 to unlock or lock the machine body 4 and the machine door 3. The household appliance adopting the door lock assembly 1 and the bolt part 211 to be matched can also effectively detect the locking state of the machine body 4 and the door body 3, so that the detection precision is improved, and the use reliability of the household appliance is improved.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. 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 modifications, 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 (18)

1. A door lock assembly for unlocking or locking in cooperation with a bolt portion (211), said door lock assembly comprising:

a bracket (13);

a detection unit mounted on the support (13), the detection unit having a first state and a second state identifying different detection signals;

the rotating unit is rotatably installed on the support (13) through a rotating shaft (16), the rotating unit is provided with a locking part (113) and a triggering part (125), the locking part (113) is used for being matched with the lock tongue part (211), and the locking part (113) can be pushed by the lock tongue part (211) to rotate, so that the triggering part (125) triggers the detection unit to be switched between the first state and the second state.

2. The door lock assembly according to claim 1, wherein the rotation unit includes a first rotation body (11) and a second rotation body (12) which are separately provided and are synchronously linked, the first rotation body (11) and the second rotation body (12) are both fitted over the rotation shaft (16), one of the first rotation body (11) and the second rotation body (12) is provided with the locking portion (113), and the other of the first rotation body (11) and the second rotation body (12) is provided with the triggering portion (125).

3. The door lock assembly according to claim 2, wherein the first rotating body (11) is provided with the locking portion (113), and the second rotating body (12) is provided with the triggering portion (125).

4. A door lock assembly according to claim 3, characterized in that said second rotor (12) has an abutment surface (1221), said first rotor (11) has an abutment surface (1111), said abutment surface (1111) is in abutment with said abutment surface (1221) so that the rotation of said first rotor (11) simultaneously abuts against the rotation of said second rotor (12).

5. The door lock assembly according to claim 3, wherein the second rotating body (12) comprises two rotating arms (121) which are oppositely arranged at intervals and a connecting portion (122) connected between the two rotating arms (121), the first rotating body (11) is positioned between the two rotating arms (121), the rotating shaft (16) is rotatably arranged through the first rotating body (11) and the two rotating arms (121), and the triggering portion (125) is positioned on one side of one rotating arm (121) away from the other rotating arm (121).

6. The door lock assembly according to claim 5, wherein at least one of the rotary arms (121) has an extension arm portion (123) extending in an axial direction of the rotary shaft (16), a tip end of the extension arm portion (123) has a pressing arm portion (124) extending in a radial direction of the rotary shaft (16), and the pressing arm portion (124) is provided with the trigger portion (125).

7. The door lock assembly according to claim 3, wherein the first rotating body (11) has a first shaft hole (116) through which the rotating shaft (16) passes, the second rotating body (12) has a second shaft hole (1211) 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 disposed through the elongated holes along a length direction of the elongated holes.

8. The door lock assembly according to any one of claims 1 to 7, wherein said door lock assembly has a locked state with said latch portion (211) and an unlocked state with said latch portion (211) unlocked, said door lock assembly further comprising a resilient member (14), said resilient member (14) being adapted to apply a force to said turning unit to maintain said door lock assembly in said locked state when said door lock assembly is in said locked state.

9. The door lock assembly according to any one of claims 1 to 7, wherein the detection unit comprises a microswitch (15), the microswitch (15) having a contact (151), the trigger (125) being capable of selectively pressing against or releasing the contact (151) to switch the microswitch (15) between the first state and the second state.

10. The door lock assembly according to claim 9, wherein the bracket (13) has a switch mounting portion (135), the switch mounting portion (135) has a switch mounting cavity (1351), the micro switch (15) is at least partially inserted in the switch mounting cavity (1351), and the switch mounting portion (135) is notched to expose the contact (151).

11. The door lock assembly as claimed in claim 10, wherein the housing of the micro switch (15) has an insertion hole (152), the insertion hole (152) is exposed out of the switch mounting cavity (1351), the switch mounting portion (135) further has an insertion protrusion (1352), and the insertion protrusion (1352) is inserted into the insertion hole (152);

and/or, the support (13) further comprises a baffle part (136), and the switch mounting part (135) is positioned on the front side of the baffle part (136).

12. The door lock assembly according to any one of claims 1 to 7, wherein the top of the bracket (13) is provided with a convex mounting boss (131), the mounting boss (131) has a main mounting cavity (1311) with an open front side, the rear side of the mounting boss (131) is provided with an insertion port (133) for inserting the lock tongue portion (211) into the main mounting cavity (1311), the locking portion (113) is rotatably provided in the main mounting cavity (1311), and the detection unit is located outside the main mounting cavity (1311).

13. The door lock assembly according to claim 12, wherein a positioning boss (132) is protruded from a rear side surface of the mounting boss (131), and the insertion opening (133) penetrates through the positioning boss (132);

and/or the rear side of the mounting boss (131) is provided with an insertion guide surface (1341), the insertion guide surface (1341) extends downwards from front to back, and the upper end of the insertion guide surface (1341) is connected with the lower side edge of the insertion opening (133).

14. A door assembly, characterized by comprising a door body (3) and the door lock assembly according to any one of claims 1 to 13, wherein the door lock assembly is arranged inside the upper end of the door body (3), and the inner surface of the door body (3) is provided with a positioning hole (323) for the lock tongue portion (211) to pass through.

15. The door assembly as claimed in claim 14, wherein a positioning boss (132) is protruded from a side of the bracket (13) facing the inner surface of the door body (3), the positioning boss (132) is inserted into the positioning hole (323) and attached to a side wall of the positioning hole (323), the positioning boss (132) has an insertion hole (133) for the latch portion (211) to pass through, and the locking portion (113) is located at a front side of the insertion hole (133).

16. The door assembly according to claim 14, wherein the door body (3) includes an outer door (31) and a door liner (32) provided inside the outer door (31), and the rotation unit and the detection unit are located between the door liner (32) and the outer door (31);

and/or the door body (3) comprises an outer door (31) and a door lining (32) arranged on the inner side of the outer door (31), the door lining (32) comprises an annular peripheral wall (321), the annular peripheral wall (321) is perpendicular to the outer door (31), one side of the annular peripheral wall (321) facing the outer door (31) is outwards and vertically connected with an edge plate part (322), the edge plate part (322) is detachably connected with the outer door (31), the edge plate part (322) is provided with the positioning hole (323), and the bracket (13) is detachably connected with the annular peripheral wall (321).

17. A door assembly as claimed in claim 16, wherein the bracket (13) includes a horizontally disposed upper mounting surface which is in abutting and removable connection with an inner surface of the annular peripheral wall (321);

and/or the bracket (13) comprises a vertically arranged front mounting surface, and the front mounting surface is attached to the inner surface of the edge plate part (322).

18. A household appliance comprising a machine body (4), characterized by further comprising a door assembly as claimed in any one of claims 14 to 17, wherein the lower end of the door assembly is pivotally connected to the machine body (4), the upper end of the machine body (4) is provided with the latch portion (211), the latch portion (211) can be relatively inserted into the positioning hole (323) to be matched with the latch portion (113), the latch portion (211) can be withdrawn from the positioning hole (323) to be unlocked with the latch portion (113), and when the latch portion (211) is locked with the latch portion (113), the detection unit is in the first state, and when the latch portion (211) is unlocked with the latch portion (113), the detection unit is in the second state.

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