CN223403813U - Locking parts, lifting mechanisms and household appliances - Google Patents

Abstract

The utility model discloses a locking piece, a lifting mechanism and a household appliance, which relate to the technical field of household appliances, wherein the locking piece comprises a lock body, a first guide rail and a first limiting part, the lock body is used for being installed on a first storage rack, one side of the lock body in the left-right direction is an installation side, the first guide rail is arranged on the installation side, the first guide rail extends in an arc shape and is upwards bent in the front-back direction, two ends of the first guide rail are correspondingly provided with a first front end and a first rear end, the first guide rail is used for being in sliding fit with a first sliding part on a swing arm, the first limiting part is arranged corresponding to the first rear end, the first limiting part is used for limiting the first sliding part when the first storage rack moves to a top locking position, and the whole first guide rail extends in an arc shape.

Description

Locking piece, lifting mechanism and household appliance

The present application claims priority from the chinese patent office, application number 202420943980.8, entitled "lifting mechanism and dishwasher," filed 30 at 2024, 4, the entire contents of which are incorporated herein by reference.

Technical Field

The utility model relates to the technical field of household appliances, in particular to a locking piece, a lifting mechanism and a household appliance.

Background

In a household appliance having an internal space, a movable storage structure such as a shelf and the like which can extend from the interior of the household appliance is generally configured, and some movable storage structures exist in the prior art, and the household appliance has a pull-out function and a lifting function;

In some household appliances, the rack is usually arranged at the bottom of the household appliance, and in the use process, operations such as taking and placing tableware and the like need to bend frequently, in order to avoid bending frequency in the use process of the rack, in the prior art, the rack is lifted by adopting a lifting mechanism for use, so that bending frequency can be reduced.

In some domestic appliance at present, can rise the supporter, after the supporter lifts to suitable position, need lock the supporter to reduce the unstable risk of supporter in user's use.

Disclosure of utility model

The utility model mainly aims to provide a locking piece, a lifting mechanism and a household appliance, and aims to lock the lifting mechanism in a locking block mode so as to reduce the unstable risk of a storage rack in the use process of a user, however, how to arrange a simpler limiting structure on the locking block to simplify the operation of the user is also a problem to be solved urgently.

In order to achieve the above object, the present utility model provides a locking member for use on a lifting mechanism of a household appliance and disposed on a first shelf, for cooperating with a swing arm of the lifting mechanism, so as to limit relative movement between the swing arm and the first shelf when the swing arm swings the first shelf upward to a top lifting limit position and the first shelf moves to a top locking position, wherein the locking member comprises:

A lock body, one side of which in the left-right direction is an installation side;

A first guide rail arranged at the mounting side, extending in arc shape and bending upwards in the direction from front to back, with two ends of the first guide rail corresponding to a first front end and a first rear end, the first guide rail being used for sliding fit with a first sliding part on the swing arm, and

The first limiting part is arranged corresponding to the first rear end, and is used for limiting the first sliding part when the first storage rack moves to the top locking position.

In an embodiment, the first guide rail is provided as a first guide groove, and a first front end of the first guide groove is provided with a first groove opening on the lock body for the first sliding part on the swing arm to slide in;

The first limiting portion includes a slot segment at a first rear end of the first guide slot.

In an embodiment, the inner side wall of the groove section at the first rear end of the first guide groove is provided with a clamping rib.

In one embodiment, the first guide rails are all on the same circular arc curve.

In an embodiment, the locking piece further comprises a second guide rail, the second guide rail is located at the rear side of the first guide rail and is used for being in sliding fit with the second sliding part of the swing arm, the second guide rail comprises a first bending section, the first bending section is downwards bent from the front to the rear, and two ends of the first bending section are respectively a second front end and a second rear end;

The locking piece further comprises a second limiting part, the second limiting part is arranged corresponding to the second rear end of the first bending section, and the second limiting part is used for limiting the second sliding part up and down.

In one embodiment, the first curved section is concave on one side facing downward, and/or,

The first curved section is provided in an arc shape.

In one embodiment, the first bending section is configured as a second guide groove, a second front end of the second guide groove is formed with a second groove opening on a front side surface of the lock body so as to enable a second sliding part on the swing arm to slide in, and a second rear end of the second guide groove is formed with a third groove opening on a lower side surface of the lock body;

And an abutting surface is formed at the rear port edge of the second guide groove and at a position close to the rear end, and the abutting surface forms the second limiting part.

In one embodiment, the lower side of the lock body forms the abutment surface.

The utility model also proposes a lifting mechanism for lifting a first shelf of a household appliance, so that the first shelf can be switched between a bottom position to be lifted and a top lifting limit position, the lifting mechanism comprising a locking piece, the lifting mechanism further comprising:

A fixing arm for being installed in a receiving chamber of the home appliance;

The swing arm assembly comprises at least one swing arm, a first hinge installation part and a second hinge installation part are correspondingly arranged at two ends of the swing arm, the first hinge installation part is installed on the fixed arm, and the second hinge installation part is used for being directly or indirectly installed on the first storage rack;

Wherein, the locking piece includes:

A lock body, one side of which in the left-right direction is an installation side;

A first guide rail arranged at the mounting side, extending in arc shape and bending upwards in the direction from front to back, with two ends of the first guide rail corresponding to a first front end and a first rear end, the first guide rail being used for sliding fit with a first sliding part on the swing arm, and

The first limiting part is arranged corresponding to the first rear end, and is used for limiting the first sliding part when the first storage rack moves to the top locking position.

In an embodiment, the lifting mechanism further comprises a first guide rail, the first guide rail comprises a plurality of sections of sliding rails which are in telescopic sliding connection with each other, the plurality of sections of sliding rails at least comprise a first section of sliding rail and a second section of sliding rail, the first section of sliding rail is directly or indirectly connected with the second hinged installation part, and the second section of sliding rail is connected with the first storage rack;

The swing arm can be with first supporter is from the bottom wait that the lifting position is preceding and upwards swing to top lifting extreme position, first supporter is in when top lifting extreme position, multisection slide rail extends the setting around, and can slide relatively, so that first supporter can slide forward to top locking position.

In an embodiment, the two swing arms are provided, the lifting mechanism further comprises a connecting piece connected to the first section of sliding rail, and the second hinge installation parts of the two swing arms are both hinged to the connecting piece.

In an embodiment, the first guide rail is provided as a first guide groove, and the locking member further comprises a second guide rail, which is located at the rear side of the first guide rail and is provided as a second guide groove;

The swing arm comprises a swing arm body, a protruding portion laterally extends out of one end of the swing arm body, which is provided with a second hinge installation portion, a first sliding portion is arranged on the protruding portion, a second sliding portion is arranged on the swing arm body, the first sliding portion can slide in the first guide groove, and the second sliding portion can slide in the second guide groove.

The utility model also proposes a household appliance comprising a housing forming a housing cavity, a lifting mechanism, a fixed arm of the lifting mechanism being provided on a side wall of the housing cavity, and a first rack hinged to a swing arm of the lifting mechanism, the lifting mechanism causing the first rack to be switched in lifting between a bottom to-be-lifted position and a top lifting limit position, wherein the lifting mechanism comprises a locking member, the lifting mechanism further comprising:

A fixing arm for being installed in a receiving chamber of the home appliance;

The swing arm assembly comprises at least one swing arm, a first hinge installation part and a second hinge installation part are correspondingly arranged at two ends of the swing arm, the first hinge installation part is installed on the fixed arm, and the second hinge installation part is used for being directly or indirectly installed on the first storage rack;

Wherein, the locking piece includes:

A lock body, one side of which in the left-right direction is an installation side;

A first guide rail arranged at the mounting side, extending in arc shape and bending upwards in the direction from front to back, with two ends of the first guide rail corresponding to a first front end and a first rear end, the first guide rail being used for sliding fit with a first sliding part on the swing arm, and

The first limiting part is arranged corresponding to the first rear end, and is used for limiting the first sliding part when the first storage rack moves to the top locking position.

In an embodiment, a second rack is further disposed in the accommodating cavity, and the lower end of the first rack is higher than the lower end of the second rack correspondingly at the top lifting limit position.

In one embodiment, the household appliance comprises a dishwasher, the first rack is configured as a lower bowl basket, and the second rack comprises an upper bowl basket.

According to the technical scheme, the locking piece comprises a lock body, a first guide rail and a first limiting part, wherein the lock body is arranged on the first storage rack, one side of the lock body in the left-right direction is the installation side, the first guide rail is arranged on the installation side, the first guide rail extends in an arc shape and is upwards bent in the front-back direction, two ends of the first guide rail are correspondingly provided with a first front end and a first rear end, the first guide rail is used for being in sliding fit with a first sliding part on the swing arm, the first limiting part is arranged corresponding to the first rear end, the first limiting part is used for limiting the first sliding part when the first storage rack moves to the top locking position, and the first guide rail is integrally arranged in an arc-shaped extension mode.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a locking member according to the present utility model;

FIG. 2 is a schematic front view of the locking member of FIG. 1;

FIG. 3 is a schematic perspective view of an embodiment of a swing arm according to the present utility model;

Fig. 4 is a schematic perspective view of an embodiment of a household appliance (a first rack is in a bottom storage position, a swing arm of a lifting mechanism is in a lower swing limit position, and the swing arm of fig. 3 and a locking member of fig. 1 are included) provided by the present utility model;

Fig. 5 is a schematic view of a front view of the home appliance of fig. 4;

FIG. 6 is a schematic perspective view of the first rack and lifting mechanism shown in FIG. 4;

FIG. 7 is a schematic diagram of the front view of the first rack and lifting mechanism shown in FIG. 4;

Fig. 8 is a schematic perspective view of the household appliance of fig. 4 (the first shelf is in the bottom to-be-lifted position and the swing arm of the lifting mechanism is in the lower swing limit position);

Fig. 9 is a schematic front view of the home appliance of fig. 8;

FIG. 10 is a schematic perspective view of the first rack and lifting mechanism shown in FIG. 8;

FIG. 11 is a schematic front view of the first rack and lifting mechanism shown in FIG. 8;

FIG. 12 is a schematic view of the first rack and lifting mechanism of FIG. 8 in partial cross-section;

Fig. 13 is a schematic perspective view of the household appliance of fig. 4 (the first shelf is in a top raised position and the swing arm of the lifting mechanism is in an up-swing limit position);

fig. 14 is a schematic view of a front view of the home appliance of fig. 13;

FIG. 15 is a schematic perspective view of the first rack and lifting mechanism shown in FIG. 13;

FIG. 16 is a schematic front view of the first rack and lifting mechanism shown in FIG. 13;

FIG. 17 is a schematic view of the first rack and lifting mechanism of FIG. 13;

FIG. 18 is a schematic diagram of a front view of the first rack and the second rack in FIG. 13 including a lifting mechanism;

Fig. 19 is a schematic perspective view of the home appliance of fig. 4 (the first shelf is in the top locking position and the swing arm of the lifting mechanism is in the swing-up limit position);

fig. 20 is a schematic view of a front view of the home appliance of fig. 19;

FIG. 21 is a schematic perspective view of the first rack and lifting mechanism shown in FIG. 19;

FIG. 22 is a schematic front view of the first rack and lifting mechanism shown in FIG. 19;

Fig. 23 is a schematic view of the first rack and lifting mechanism of fig. 19.

Reference numerals illustrate:

100. Lifting mechanism 1, fixed arm 2, swing arm 21, first hinge installation part 22, second hinge installation part 23, first sliding part 24, second sliding part 25, convex part 3, connecting piece 4, first guide rail 41, first section slide rail 42, tail section slide rail 5a, locking piece 51, first guide rail 51a, first guide groove 511, first front end 512, first rear end 513, clamping bar 514, first groove opening 52, first limit part 53, second guide rail 53a, second guide groove 53, 531, second front end 532, second rear end 533, second groove opening 534, third groove opening 54, second limit part 54a, stop surface;

1000. the household appliance comprises a household appliance body, a shell, a containing cavity, 300 parts of a first commodity shelf, 400 parts of a second commodity shelf.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present utility model), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In some household appliances, the shelf is usually arranged at the bottom of the household appliance, operations such as taking and placing tableware need to be frequently bent in the use process, in order to avoid bending frequency in the use process of the shelf, the shelf is lifted by adopting a lifting mechanism in the prior art, the shelf can be lifted in the prior art, and after the shelf is lifted to a proper position, the shelf needs to be locked so as to reduce the unstable risk of the shelf in the use process of a user, however, how to provide a simpler limiting structure on the locking block so as to simplify the operation of the user is also a problem to be solved.

In an embodiment of the present utility model, referring to fig. 1 to 2, the locking member 5a is used on a lifting mechanism 100 of a household appliance 1000 and is disposed on a first rack 300, so as to cooperate with a swing arm 2, so as to limit relative movement between the swing arm 2 and the first rack 300 when the swing arm 2 swings the first rack 300 upward to a top lifting limit position and the first rack 300 moves forward to a top locking position, the locking member 5a includes a lock body, a first guide rail 51 and a first limiting portion 52, the lock body is disposed on the first rack 300, one side of the lock body in a left-right direction is a mounting side, the first guide rail 51 is disposed on the mounting side, the first guide rail 51 extends in an arc shape, and is disposed in an upward bending manner in a front-back direction, two ends of the first guide rail 51 are respectively a first front end 511 and a first rear end 512, the first guide rail 51 is disposed on the first rack 2 and the first limiting portion 23 is disposed in a sliding manner, and the first guide rail 51 is disposed on the first rack 2 and is in a sliding position corresponding to the first limiting portion 52 when the first rack 2 slides to the first limiting portion 23.

In the technical solution of the present utility model, the locking member 5a includes a lock body, a first guide rail 51 and a first limiting portion 52, the lock body is configured to be mounted on the first rack 300, one side of the lock body in the left-right direction is a mounting side, the first guide rail 51 is disposed on the mounting side, the first guide rail 51 extends in an arc shape, and is configured to be bent upwards in a direction from front to back, two ends of the first guide rail 51 are respectively a first front end 511 and a first rear end 512, the first guide rail 51 is configured to be in sliding fit with the first sliding portion 23 on the swing arm 2, the first limiting portion 52 is configured to be corresponding to the first rear end 512, the first limiting portion 52 is configured to limit the first sliding portion 23 when the first rack 300 moves to the top locking position, and the first guide rail 51 is configured to be a plurality of guide segments, for example, the first guide rail 51 is configured to be a plurality of guide segments, and the arc-shaped locking member is configured to be a combined with the guide segments.

In the present utility model, the user is used as a direction reference, and the forward direction is a direction toward the user, or a direction from the back side of the household appliance 1000 toward the side where the door body is provided of the household appliance 1000, the backward direction is a direction opposite to the forward direction, specifically, a direction away from the user, or a direction from the side where the door body is provided of the household appliance 1000 toward the back side of the household appliance 1000, and the up-down direction is a direction with gravity as a reference.

One side of the lock body in the left-right direction is an installation side, and one side of the lock body opposite to the installation side is fixedly installed on the first storage rack 300, so that the lock body can move along with the first storage rack 300. Further, since the first rack 300 is supported by the swing arm 2 through the lock body, the locking member 5a needs to have a certain hardness and strength, and various materials are used.

Specifically, the lock body may be made of metal alloy materials such as steel and aluminum alloy, inorganic nonmetallic materials such as ceramics, or polymer materials such as plastics. The present utility model is not limited to this, as long as the first shelf 300 can support the load. In some embodiments, the lock body is made of plastic.

The first guide rail 51 extends in an arc shape, and it can be understood that the first guide rail 51 may be formed by combining a plurality of arc segments, and the bending radii of the plurality of arc segments may be different, or may be partially set identically, or partially set differently.

In some embodiments, the first guide rails 51 are all on the same arc curve, so that the bending radius of the whole first guide rails 51 is consistent, which is beneficial to the forming of the first guide rails 51. In addition, the stability is better in the process of installing the first sliding part 23 on the first guide rail 51 in a sliding fit manner, and the first limiting part 52 is better in the limiting state of the first sliding part 23, so that the effect is better.

The first limiting part 52 is arranged corresponding to the first rear end 512, when the first storage rack 300 is lifted to the top lifting limit position, the first storage rack 300 is only required to be pulled forwards continuously, the first sliding part 23 on the swing arm 2 slides to the first limiting part 52 and is limited by the first limiting part 52, in the whole lifting locking process, a user pulls the first storage rack 300 forwards, the first storage rack 300 is enabled to move forwards and lift upwards, the first storage rack 300 is pulled forwards again, the first storage rack 300 is locked, and in the whole process, the user only needs to pull the first storage rack 300 forwards, lifting and locking can be completed, so that the operation simplicity is high.

It should be emphasized that the number of the guide rail and the sliding portion is not limited, and may be one or a plurality, and the like, and the specific implementation forms of the guide rail and the sliding portion are not limited, the guide rail may be configured as a guide groove, the sliding portion may be configured as a strut, a pulley, and the like, the guide rail may be configured as a guide rib, and the sliding portion may be configured as a slide groove, for example, the sliding portion may include two struts arranged at intervals, the interval between the two struts forms the slide groove, the sliding portion may be directly configured as a sliding protrusion, and the slide groove may be opened thereon, and the like, and the present invention is not limited thereto.

The specific implementation form of the first limiting portion 52 is not limited, and may take the form of a limiting groove, a limiting rib, a limiting surface, or the like, which is not limited herein.

In some embodiments, referring to fig. 1 to 2, the first guide rail 51 is configured as a first guide groove 51a, a first front end 511 of the first guide groove 51a is formed with a first groove opening 514 on the lock body for the first sliding portion 23 on the swing arm 2 to slide in, and the first limiting portion 52 includes a groove segment at the first rear end 512 of the first guide groove 51a, that is, the first limiting portion 52 is configured as a part of the first guide groove 51a, which simplifies the arrangement manner of the locking member 5a, and has a better effect.

It will be appreciated that when the first slider 23 is provided as a spool at the channel section at the first rear end 512 of the first guide channel 51a, the spool abuts against the upper and/or lower side walls of the first guide channel 51a to limit the position.

In some embodiments, referring to fig. 1 to 2, the inner side wall of the first rear end 512 of the first guiding groove 51a is provided with a blocking rib 513, and the blocking rib 513 is provided to form a damping structure so as to block the first sliding portion 23 in place, so as to remind the user that the first rack 300 is moved in place, thereby helping to improve the user experience.

The number of the locking ribs 513 may be one or more, and the utility model is not limited thereto, and in some embodiments, two locking ribs 513 are provided, and two locking ribs 513 are provided on two opposite sides of the first guiding groove 51a, so that by providing two locking ribs 513, the passing width of the first guiding groove 51a can be further reduced, the interference of the first sliding portion 23 can be increased, and the feedback force of damping can be improved.

It should be appreciated that the locking rib 513 may be formed in various manners with the lock body, for example, the locking rib 513 may be integrally formed with the lock body, or may be formed by assembling, which is not limited in the present utility model.

The locking member 5a is applied to the locking lifting mechanism 100, the lifting mechanism 100 is applied to the household appliance 1000, and some specific structures of the household appliance 1000 are described below, so that how the locking member 5a is applied to the lifting mechanism 100 can be well described, and the locking of the first rack 300 after lifting is described in detail.

The home appliance 1000 may be a dishwasher, an oven, a refrigerator, or the like. The household appliance 1000 comprises a housing 200, wherein a containing cavity 201 is formed in the housing 200, a first storage rack 300 is connected in the containing cavity 201 through a lifting mechanism 100, and the first storage rack 300 is provided with utensils to be placed, such as tableware including bowls, dishes, plates, chopsticks, cutlery and the like, baked food or articles to be refrigerated and the like.

In some home appliances 1000, there is only one shelf, such as the first shelf 300. In the embodiment of providing a plurality of racks in the household appliance 1000, two racks may be provided, for example, when two racks have a positional relationship in an up-down direction, the first rack 300 corresponds to the lower rack and the second rack 400 corresponds to the upper rack.

For the first rack 300, the first rack 300 needs to be moved out of the accommodating cavity 201 of the household appliance 1000, then lifted to a proper position, and finally locked to a proper position, specifically, after the door of the household appliance 1000 is opened, a user needs to put or take out an article to be placed from the first rack 300, the user always pulls the first rack 300 forward, and during the moving process of the first rack 300, a composite moving process occurs, that is, the lifting mechanism 100 moves forward and upward simultaneously, and then moves along and supports the first rack 300.

The first rack 300 has several important positions during its movement, such as a bottom storage position (as shown in fig. 4 to 7), a bottom to-be-lifted position (as shown in fig. 8 to 12), a top lifting limit position (as shown in fig. 13 to 18), and a top locking position (as shown in fig. 19 to 23).

The first rack 300 has a bottom storage position, a bottom to-be-lifted position, a top lifting limit position, and a top locking position, when the swing arm 2 is at the lower swing limit position, the corresponding first rack 300 is at the bottom storage position and the bottom to-be-lifted position, and when the swing arm 2 is at the upper swing limit position, the corresponding first rack 300 is at the top lifting limit position and the top locking position.

Referring to fig. 19 to 23 in detail, the first rack 300 moves forward at the top locking position by a distance relative to the top lifting limit position, the first sliding portion 23 of the swing arm 2 slides from the tail end of the first guide rail 51 to the first limiting portion 52, the first sliding portion 23 of the swing arm 2 is limited by the first limiting portion 52, and the swing arm 2 is at the upper swing limit position.

The first guide rail 51 and the first sliding portion 23 form a sliding fit structure group, and the sliding fit structure group may be provided only by one or may be provided by a plurality of sliding fit structure groups, and in the embodiment in which the sliding fit structure group is provided by one, the stability is poor in the process of locking between the first shelf 300 and the swing arm 2 by the locking member 5 a.

In the embodiment in which the two sliding fit structure sets are provided, the locking piece 5a further includes a second guide rail 53, the second guide rail 53 is located at a rear side of the first guide rail 51, the second guide rail 53 is configured to slidingly fit with the second sliding portion 24 of the swing arm 2, the second guide rail 53 includes a first curved section, the first curved section is disposed in a downward curved manner from a front to a rear direction, two ends of the first curved section are correspondingly provided with a second front end 531 and a second rear end 532, the locking piece 5a further includes a second limiting portion 54, the second limiting portion 54 is disposed corresponding to the second rear end 532 of the first curved section, and the second limiting portion 54 is configured to limit the second sliding portion 24 up and down.

In the technical solution of this embodiment, by the cooperation of the first guide rail 51 and the first sliding portion 23, the cooperation of the second guide rail 53 and the second sliding portion 24 forms two sliding fit structure groups, so as to improve the stability of the first rack 300 during lifting and locking.

It should be noted that, the first guide rail 51 is bent upward from the front to the back, the second guide rail is bent downward from the front to the back, and when the first sliding portion 23 and the second sliding portion 24 cut into the corresponding guide rails, the movement direction and the timing may be inconsistent, so that the stability of the first rack 300 in lifting and locking is improved.

The first guide rail 51 may be upwardly curved from the front to the rear, may extend from the first front end 511 to the first rear end 512, may extend upwardly and then downwardly, and so on, but is not limited thereto, and in an embodiment, the swing arm 2 is vertically downwardly (see fig. 11) in the lower swing limit position, and the swing arm 2 is inclined upwardly (see fig. 16 and 22) in the upper swing limit position, so that the rotation angle of the swing arm 2 is obtuse when the swing arm 2 rotates from the lower swing limit position to the upper swing limit position, and the track of the first sliding portion 23 should be upwardly moved and then downwardly moved.

In the technical solution of this embodiment, the first guide rail 51 extends upward and then downward in the front-to-back direction, and the first rear end 512 of the first guide rail 51 is lower than the highest point of the first guide rail 51, so that the first guide rail 51 matches with the track of the first sliding portion 23, and the rotation angle of the swing arm 2 may be an obtuse angle, so that the first shelf 300 can be higher than the existing one when in the top lifting position.

The second guide rail 53 is bent downwards from the front to the back, in the lifting process, the second sliding portion 24 moves downwards, the first sliding portion 23 moves upwards, and the two moving directions are different, so that the guide effect on the moving track of the first rack 300 in the lifting process can be achieved, and the stability of the first rack in the moving process can be improved. The first guide rail 51 and the second guide rail 53 are provided, one of the first guide rail 51 and the second guide rail 53 may guide the swing arm 2 in the up-down direction, and the other may guide the swing arm 2 in the front-back direction, so that stability of the first rack 300 in the moving process is further improved.

The specific implementation forms of the second guide rail 53 and the first guide rail 51 are not limited, and they may be all configured as guide grooves, all configured as guide ribs, one configured as guide rib, the other configured as guide grooves, etc., which are not limited herein.

The concave side of the first bending section faces downwards, so that the movement track of the first bending section can be matched with the sliding path of the second sliding part 24, and the second guiding rail 53 can guide the second sliding part 24 to move to the second limiting part 54, so as to limit the second limiting part 54 up and down.

In some embodiments, the first curved section is configured in an arc shape, and the arc shape is configured to enable the second sliding portion 24 to smoothly slide along the second guide rail 53, so that the second guide rail 53 guides the movement of the second sliding portion 24. Of course, in other embodiments, the first bending section may be disposed in a compound curve, which is not limited in the present utility model.

The specific implementation form of the second limiting portion 54 is not limited, and may take the form of a limiting groove, a limiting rib, a limiting surface, or the like, which is not limited herein.

The specific implementation form of the second guide rail 53 is not limited, and may take the form of a guide groove, a guide rib, etc., which is not limited herein.

In some embodiments, the first bending section is configured as a second guide groove 53a, a second front end 531 of the second guide groove 53a is formed with a second groove opening 533 on a front side surface of the lock body for sliding in the second sliding portion 24 on the swing arm 2, a second rear end 532 of the second guide groove 53a is formed with a third groove opening 534 on a lower side surface of the lock body, a stop surface 54a is formed at a rear port edge of the second guide groove 53a and at a rear position, the stop surface 54a forms the second limiting portion 54, and when the lifting mechanism 100 lifts the first shelf 300 up to an upper limit position, the second sliding portion 24 slides along the second guide groove 53a to the stop surface 54a to limit the swing arm 2 from rotating upward.

In the technical solution of the present utility model, the specific forming manner of the abutment surface 54a is not limited, for example, a limiting rib may be protruded on the side surface of the installation side of the lock body, the abutment surface 54a may be formed by the lower surface of the limiting rib, a notch may be formed on the side surface of the installation side of the lock body, the notch is communicated with the second guide groove 53a, and the abutment surface 54a is formed on the upper wall surface of the notch, which is within the protection scope of the present utility model.

In some embodiments, the lower side surface of the lock body directly forms the abutment surface 54a, and the lower side surface of the lock body forms the second limiting portion 54, so that the second limiting portion 54 does not need to be additionally arranged, the production and the processing are convenient, and the cost is saved.

In order to achieve the above objective, the present application further provides a lifting mechanism 100 for lifting a first rack 300 of a household appliance 1000, such that the first rack 300 can be lifted and switched between a bottom to-be-lifted position and a top-to-be-lifted limit position, and the first rack 300 has a locked position and an unlocked position corresponding to the top-to-be-lifted limit position, the lifting mechanism 100 includes a fixed arm 1, a swing arm 2 assembly and a locking piece 5a, the fixed arm 1 is configured to be mounted in a receiving cavity 201 of the household appliance 1000, the swing arm 2 assembly includes at least one swing arm 2, a first hinge mounting portion 21 and a second hinge mounting portion 22 are formed on the swing arm 2, the first hinge mounting portion 21 is mounted on the fixed arm 1, the second hinge mounting portion 22 is configured to be directly or indirectly mounted on the first rack 300, and the specific structure of the locking piece 5a refers to the above embodiment, so that the lifting mechanism 100 at least has all technical schemes of the above embodiments.

In the technical solution of this embodiment, when the first rack 300 is lifted to the top lifting limit position, only the first rack 300 needs to be pulled forward continuously, the first rack 300 continues to move forward, the first sliding portion 23 on the first guide rail 51 slides onto the first limiting portion 52 and is limited by the first limiting portion 52, in the whole lifting locking process, the user pulls the first rack 300 forward, so that the first rack 300 moves forward, lifts upward, pulls the first rack 300 forward again, locks the first rack 300, and in the whole process, the user only needs to pull the first rack 300 forward, so that lifting and locking can be completed, and the operation simplicity is high.

In the process of completing the above-mentioned actions, the first rack 300 and the swing arm 2 need to move relatively in the front-rear direction, specifically, in some embodiments, the lifting mechanism 100 further includes a first rail 4, where the first rail 4 includes a plurality of sections of sliding rails that are telescopically and slidably connected to each other, the plurality of sections of sliding rails include at least a first section of sliding rail 41 and a second section of sliding rail 42, the first section of sliding rail 41 is directly or indirectly connected to the second hinge mounting portion 22, and the second section of sliding rail 42 is connected to the first rack 300.

The swing arm 2 can be with first supporter 300 wait to rise the position forward and upwards swing to top lifting extreme position from the bottom, first supporter 300 is in when top lifting extreme position, multisection slide rail extends the setting back and forth, and can slide relatively, so that first supporter 300 can slide forward to top locking position, through setting up first guide rail 4, make first supporter 300 can be relative swing arm 2 is in the fore-and-aft direction is upwards movable, and then realizes the front-pulling locking.

The number of the sections of the first rail 4 may be not limited, and may be, for example, 2 sections, 3 sections, or more.

In some embodiments, the lifting mechanism 100 further includes a connecting member 3 connected to the first-section sliding rail 41, and the connecting member 3 is connected between the swing arm 2 and the first-section sliding rail 41, so that the arrangement manner between the two is more flexible.

The connecting piece 3 is connected to the first section of sliding rail 41, and can be connected by adopting a bonding or welding mode, namely, the connecting piece 3 can be adhered to the first section of sliding rail 41 by adopting a viscose mode, and of course, a welding mode can also be adopted, for example, the connecting piece 3 and the first section of sliding rail 41 are both made of metal materials, for example, iron or steel materials, and the connecting piece 3 is welded on the first section of sliding rail 41.

In some embodiments, the connecting piece 3 and the first-section sliding rail 41 are integrally formed, that is, the connecting piece 3 and the first-section sliding rail 41 are one component, so that the number of parts is reduced, and the assembly time and the cost are saved.

In the technical solution of this embodiment, by setting the relative movement between the first section slide rail 41 and the tail section slide rail 42 of the slide rail structure, the first rack 300 may move linearly along the front-back direction with respect to the connecting piece 3, and may also enable the first rack 300 to slide forward to the top locking position.

In some embodiments, two swing arms 2 are provided, and the second hinge mounting portions 22 of the two swing arms 2 are both hinged to the connecting member 3. The two swing arms 2, the fixed arms 1 and the connecting piece 3 can form a four-bar structure and are parallelogram four-bar mechanisms, so that the stability of the first storage rack 300 in the lifting process is improved.

In some embodiments, referring to fig. 3, 11 and 22 in detail, the first guide rail 51 is provided as a first guide groove 51a, and the locking member 5a further includes a second guide rail 53, the second guide rail 53 is located at a rear side of the first guide rail 51, and the second guide rail 53 is provided as a second guide groove 53a. The swing arm 2 comprises a swing arm 2 main body, a protruding portion 25 laterally extends from one end provided with the second hinge mounting portion 22 of the swing arm 2 main body, a first sliding portion 23 is arranged on the protruding portion 25, a second sliding portion 24 is arranged on the swing arm 2 main body, the first sliding portion 23 can slide in the first guide groove 51a, and the second sliding portion 24 can slide in the second guide groove 53a.

The first sliding portion 23 and the second sliding portion 24 are provided on one swing arm 2, so that stability of the lifting mechanism 100 during lifting movement is improved.

In addition, only the first sliding portion 23 is provided on the protruding portion 25, and the second sliding portion 24 is provided on the swing arm 2 main body, so that the structure is simple, and the installation of the swing arm 2 is simplified.

The application also proposes a household appliance 1000 comprising a housing 200, a lifting mechanism 100 and a first shelf 300, the housing 200 forming a receiving cavity 201, the lifting mechanism 100 comprising a lifting mechanism 100 as defined in any one of the preceding claims, a fixed arm 1 of the lifting mechanism 100 being provided on a side wall of the receiving cavity 201, the first shelf 300 being hingedly connected to a swing arm 2 of the lifting mechanism 100, the lifting mechanism 100 being such that the first shelf 300 is switched in elevation between a bottom to-be-lifted position and a top lifting limit position.

In some household appliances 1000, some of the racks are provided with two racks and some of the racks are provided with more racks, in the technical scheme of the utility model, the accommodating cavity 201 is also internally provided with a second rack 400, the lower end of the first rack 300 protrudes upwards from the lower end of the second rack 400 correspondingly to the upper lifting limit position, namely, the lifting height of the first rack 300 is higher than that of the second rack 400 at the lifting limit position of the first rack 300, at this time, the lifting height is larger, the frequency of bending down by a user is reduced, and the user experience is improved.

In the embodiment of the household appliance 1000 having two shelves, the first shelf 300 is a lower shelf, the second shelf 400 is an upper shelf, and when the first shelf 300 is in the top storage position and the second shelf 400 is in the accommodating cavity 201, the first shelf 300 is located below the second shelf 400 and is opposite to the second shelf 400.

In view of some of the above embodiments, the user needs to use the first shelf 300 and the second shelf 400 alternately, that is, to keep the second shelf 400 as far as possible in the accommodating chamber 201 when using the first shelf 300 to be lifted, to keep the first shelf 300 as far as possible in the accommodating chamber 201 when using the second shelf 400, or to not lift the second shelf 400 as far as possible.

Of course, for the upper end of the first shelf 300 and the upper end of the second shelf 400, in some embodiments, the upper end of the first shelf 300 protrudes upward from the upper end of the second shelf 400 at the top lifting limit position and the top lifting locking position of the first shelf 300, that is, the first shelf 300 can be located at a higher position on the premise that the depths of the first shelf 300 and the second shelf 400 are identical.

Corresponding to the household appliance 1000 being a product of a dishwasher, the first rack 300 is corresponding to a lower basket of the dishwasher, the second rack 400 is corresponding to an upper basket of the dishwasher, when the lower basket of the dishwasher is used, the lifting mechanism 100 lifts the lower basket of the dishwasher to a position higher than the upper basket, and the state and the user have the same operation height or a higher height when using the upper basket of the dishwasher, so that the operation experience of the user can be better.

The following describes a process of using the home appliance 1000 by a user with reference to the first shelf 300, with reference to the related structure of the home appliance 1000:

1. The first shelf 300 is in a bottom storage position as shown in fig. 4-8:

This state is a state in which the user is not using, or just starts using, or the user finishes using, and in which the first shelf 300 is located in the housing cavity 201 of the home appliance 1000, and it can be seen from fig. 4 to 8 that the first shelf 300 is received in the housing cavity 201, and at this time, the distance between the head rail 41 and the tail rail 42 of the first rail 4 is the smallest or the overlapping distance is the largest, and the swing arm 2 is located at the lower swing limit position.

2. The first rack 300 is in a bottom to-be-lifted position, as shown in fig. 9-12:

This state is a state in which the user pulls out the first shelf 300 from the accommodating chamber 201, or the user descends the first shelf 300 after using the first shelf 300, in which the first shelf 300 is located at the opening of the accommodating chamber 201, as can be seen from fig. 9 to 12, the distance between the head rail 41 and the tail rail 42 of the first rail 4 is relatively large or the overlapping distance is relatively small, the first shelf 300 is moved forward relative to the accommodating chamber 201, and the swing arm 2 is still located at the lower swing limit position.

3. The first shelf 300 is in a top lift limit position as shown in fig. 13-18:

This state is a state in which the user lifts the first shelf 300 or the user withdraws from the lock after using the first shelf 300, in which the first shelf 300 is at the maximum height of the lift, as can be seen from fig. 13 to 18, the distance between the head rail 41 and the tail rail 42 of the first rail 4 is relatively large or the overlapping distance is relatively small, and the swing arm 2 is at the upper swing limit position with respect to the distance or overlapping distance of the first shelf 300 at the bottom to be lifted.

4. The first shelf 300 is in a top locking position as shown in fig. 19-23:

This state is a locking state after the user lifts the first rack 300, in which the user can take and place the article to be placed, and in these states, the first rack 300 is at the maximum height of the lifting, as can be seen from fig. 19 to 23, the distance between the head rail 41 and the tail rail 42 of the first rail 4 is the maximum or the overlapping distance is the minimum, the first rack 300 is moved forward at the top locking position by a distance relative to the top lifting limit position, and the swing arm 2 is still at the upper swing limit position.

The following is presented in a complete usage flow for the user:

When a user needs to use the household appliance 1000, firstly opening a door body of the household appliance 1000, and pulling the first storage rack 300 out of the accommodating cavity 201 to the bottom to-be-lifted position forwards by the user from the bottom accommodating position, under the swinging action of the swing arm 2 combined with the lifting mechanism 100, continuing to pull the first storage rack 300 forwards and simultaneously upwards, so that the first storage rack 300 moves from the bottom to-be-lifted position to the top lifting limit position;

When the user finishes taking and placing the articles to be placed, the user pushes back the first storage rack 300 to unlock the first storage rack 300 and move the first storage rack 300 from the top unlocking position to the top lifting limit position, the user lowers the first storage rack 300 to enable the first storage rack 300 to move from the top lifting limit position to the bottom to-be-lifted position, and the user continues pushing back the first storage rack 300 to enable the first storage rack 300 to move from the bottom to-be-lifted position to the bottom storage position, when the first storage rack 300 is in the bottom storage position, the user can close the door body to finish using the household appliance 1000.

The foregoing description is only exemplary embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (15)

1. A locking piece for use on a lifting mechanism of a household appliance and disposed on a first shelf for cooperating with a swing arm of the lifting mechanism to limit relative movement between the swing arm and the first shelf when the swing arm swings the first shelf upwardly to a top lift limit position and the first shelf moves to a top locking position, the locking piece comprising:

A lock body, one side of which in the left-right direction is an installation side;

A first guide rail arranged at the mounting side, extending in arc shape and bending upwards in the direction from front to back, with two ends of the first guide rail corresponding to a first front end and a first rear end, the first guide rail being used for sliding fit with a first sliding part on the swing arm, and

The first limiting part is arranged corresponding to the first rear end, and is used for limiting the first sliding part when the first storage rack moves to the top locking position.

2. The locking piece according to claim 1, wherein the first guide rail is provided as a first guide groove, and a first front end of the first guide groove is formed with a first groove opening on the lock body for sliding in a first sliding part on the swing arm;

The first limiting portion includes a slot segment at a first rear end of the first guide slot.

3. The locking element of claim 2, wherein the inner side wall of the first rear end of the first guide slot is provided with a catch.

4. The locking element of claim 1 wherein said first guide tracks are all on the same circular arc curve.

5. The latch according to claim 1, further comprising a second guide rail at a rear side of said first guide rail, said second guide rail being adapted to slidably engage with a second sliding portion of said swing arm, said second guide rail including a first curved section provided in a downward curved manner from a front to a rear direction, both ends of said first curved section being a second front end and a second rear end, respectively;

The locking piece further comprises a second limiting part, the second limiting part is arranged corresponding to the second rear end of the first bending section, and the second limiting part is used for limiting the second sliding part up and down.

6. The locking element of claim 5, wherein said first curved section is concave on one side facing downward and/or,

The first curved section is provided in an arc shape.

7. The latch according to claim 5, wherein said first curved section is provided as a second guide slot, a second front end of said second guide slot being formed with a second slot opening on a front side of said lock body for sliding in of a second sliding portion on a swing arm, and a second rear end of said second guide slot being formed with a third slot opening on a lower side of said lock body;

And an abutting surface is formed at the rear port edge of the second guide groove and at a position close to the rear end, and the abutting surface forms the second limiting part.

8. The locking element of claim 7, wherein the underside of the lock body forms the abutment surface.

9. A lifting mechanism for lifting a first shelf of a household appliance such that the first shelf can be switched between a bottom to-be-lifted position and a top lifting limit position, the lifting mechanism comprising:

A fixing arm for being installed in a receiving chamber of the home appliance;

The swing arm assembly comprises at least one swing arm, a first hinge installation part and a second hinge installation part are correspondingly arranged at two ends of the swing arm, the first hinge installation part is installed on the fixed arm, and the second hinge installation part is used for being directly or indirectly installed on the first commodity shelf, and

A locking member according to any one of claims 1 to 8.

10. The lifting mechanism of claim 9, further comprising a first rail, wherein the first rail comprises a plurality of sections of rails telescopically slidably coupled to each other, wherein the plurality of sections of rails comprises at least a first section of rails and a second section of rails, wherein the first section of rails is directly or indirectly coupled to the second hinge mounting portion, and wherein the second section of rails is coupled to the first rack;

The swing arm can be with first supporter is from the bottom wait that the lifting position is preceding and upwards swing to top lifting extreme position, first supporter is in when top lifting extreme position, multisection slide rail extends the setting around, and can slide relatively, so that first supporter can slide forward to top locking position.

11. The lift mechanism of claim 10, wherein two swing arms are provided, the lift mechanism further comprising a connector coupled to the head rail, the second hinge mounts of both swing arms being hinged to the connector.

12. The lift mechanism of claim 9, wherein the first guide rail is configured as a first guide slot, and the locking member further comprises a second guide rail positioned on a rear side of the first guide rail, the second guide rail configured as a second guide slot;

The swing arm comprises a swing arm body, a protruding portion laterally extends out of one end of the swing arm body, which is provided with a second hinge installation portion, a first sliding portion is arranged on the protruding portion, a second sliding portion is arranged on the swing arm body, the first sliding portion can slide in the first guide groove, and the second sliding portion can slide in the second guide groove.

13. A household appliance, comprising:

a housing formed with a receiving chamber;

A lifting mechanism comprising a lifting mechanism as claimed in any one of claims 9 to 12, a fixed arm of the lifting mechanism being provided on a side wall of the receiving chamber, and

A first rack hinged to a swing arm of the lifting mechanism;

The lifting mechanism enables the first storage rack to be lifted and switched between a bottom to-be-lifted position and a top lifting limit position.

14. The household appliance according to claim 13, wherein a second shelf is further provided in the receiving chamber, the lower end of the first shelf being higher than the lower end of the second shelf, corresponding to the top lifting limit position.

15. The household appliance of claim 14, wherein the household appliance comprises a dishwasher, the first shelf is configured as a lower bowl basket, and the second shelf comprises an upper bowl basket.