CN218349031U - Main and auxiliary door assembly and refrigerator - Google Patents

Abstract

The application relates to domestic appliance technical field discloses a major-minor door subassembly, includes: the main door is provided with a locking part; the auxiliary door is arranged on the main door in an opening and closing manner; the sliding block comprises a locking matching part and a sliding part which are connected, and the sliding block slides relative to the main door to drive the locking matching part to be matched with or disengaged from the locking part, so that the main door and the auxiliary door are locked or unlocked; the rotating piece is rotatably arranged on the auxiliary door and comprises a sliding matching part, the rotating piece rotates relative to the auxiliary door, and the sliding matching part is matched with the sliding part to drive the sliding block to slide relative to the main door; the knob is connected with the rotating piece so as to drive the rotating piece to rotate relative to the auxiliary door. The utility model provides a major-minor door subassembly passes through the knob and drives the rotation piece and rotate for the auxiliary door, makes sliding fit portion drive sliding part slide for the main door to drive closure cooperation portion and closure portion cooperation or remove the cooperation, in order to realize the closure of major-minor door or remove the closure. The locking of the main door and the auxiliary door is controlled in a rotating mode, so that the main door and the auxiliary door are prevented from being opened easily.

Description

Main and auxiliary door assembly and refrigerator

Technical Field

The application relates to the technical field of household appliances, for example to a main door assembly, an auxiliary door assembly and a refrigerator.

Background

With the increasing living standard of the public, the main and auxiliary door refrigerators gradually enter thousands of households. When the user uses the main and auxiliary door refrigerator, the auxiliary door of the refrigerator can be opened according to actual needs to take and place articles, more detailed use experience is brought to the user, and the convenience of using the refrigerator is greatly improved. The existing refrigerator door locking mode is easy to open, is not suitable for a main door refrigerator and a secondary door refrigerator, and once the refrigerator door is opened by a child, the article can fall off, so that the child is injured by the article.

In order to prevent the danger from easily opening the refrigerator door, the related art discloses a hidden door lock, the main structure includes: the hinge pin, the mount, the brake lever, the pull rod gear, the seal box, the rack guide slot, the hinge pin comprises circular end and hinge pin polygon end two parts, the mount is fixed even as an organic whole with the refrigerator door, the seal box is fixed in on the mount, be provided with the seal box door outside the seal box, the pull rod gear comprises pull rod and gear two parts, the pull rod welds as an organic wholely with the gear, the fixed epaxial of fixing on the mount is located to pull rod gear one end cover, the other end can be followed the seal box and reciprocated, the brake lever comprises brake lever polygon end and rack two parts, the brake lever is fixed in the rack guide slot.

Although it is realized that the refrigerator door lock is not easily opened, in the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the invisible door lock of the refrigerator door is arranged in the sealing box, when a user needs to open the refrigerator door, the sealing box must be opened firstly, then the invisible door lock can be released to open the refrigerator door, the step that the user opens the refrigerator door is complex, and the convenience that the user uses the refrigerator is reduced.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a main and auxiliary door assembly, which solves the technical problems that the opening step of an invisible door lock of a refrigerator door in the prior art is complex, and the convenience of using the refrigerator by a user is reduced.

The utility model discloses technical scheme of first aspect provides a major-minor door subassembly, include: a main door provided with a locking part; a sub-door provided to be openable and closable to the main door; the sliding block comprises a locking matching part and a sliding part which are connected, and the sliding block slides relative to the main door to drive the locking matching part to be matched with or disengaged from the locking part so as to enable the main door and the auxiliary door to be locked or unlocked; the rotating piece can be rotatably arranged on the auxiliary door and comprises a sliding matching part, the rotating piece rotates relative to the auxiliary door, and the sliding matching part is matched with the sliding part to drive the sliding block to slide relative to the main door; and the knob is connected with the rotating piece and used for driving the rotating piece to rotate relative to the auxiliary door.

In some embodiments, the number of the sliding blocks is multiple, the sliding blocks are arranged in a radial manner along the circumferential direction of the rotating member, and the sliding blocks reciprocate along the radial direction of the rotating member to enable the locking matching parts to be matched with or disengaged from the locking parts, wherein the number of the sliding matching parts is equal to the number of the sliding parts and corresponds to one another.

In some embodiments, one of the sliding portion and the sliding engagement portion is a sliding slot, and the other of the sliding portion and the sliding engagement portion is a sliding rod adapted to the sliding slot, the sliding rod being located in the sliding slot and sliding relative to the sliding slot to slide the sliding block relative to the main door.

In some embodiments, the sliding groove is an arc-shaped groove, and the distance between the two ends of the arc-shaped groove and the rotation center of the rotating member is unequal.

In some embodiments, the slider further comprises a guide; the primary and secondary door assemblies further comprise: the base is provided with a guide matching part matched with the guide part, the guide part is matched with the guide matching part, and when the sliding part is matched with the sliding matching part, the sliding block is guided to do linear reciprocating motion.

In some embodiments, one of the guide portion and the guide engagement portion is a guide rail, and the other is a linear guide groove, and the guide rail is located in the linear guide groove and is capable of linearly reciprocating with respect to the linear guide groove.

In some embodiments, one end of the guide portion is connected to the sliding portion, and the other end of the guide portion is connected to the locking fitting portion.

In some embodiments, one of the locking portion and the locking engagement portion is a lock tongue, and the other is a lock groove engaged with the lock tongue; the lock tongue slides into the lock groove or slides out of the lock groove, so that the locking part is matched with or not matched with the locking matching part.

In some embodiments, the rotating member is a driven gear, and the primary and secondary door assemblies further comprise: and the driving gear is connected with the knob and is meshed with the driven gear, and the knob is rotated to drive the driving gear to rotate so as to drive the driven gear to rotate.

The technical scheme of the second aspect of the utility model provides a refrigerator; including the primary and secondary door assemblies as described in the embodiments above.

The main and auxiliary door assemblies provided by the embodiment of the disclosure can realize the following technical effects:

the utility model provides a major-minor door subassembly passes through the knob and drives the rotation piece and rotate for the auxiliary door, makes sliding fit portion drive sliding part slide for the main door, and then drives closure cooperation portion and closure portion cooperation or the cooperation of removing to realize the closure of major-minor door or remove the closure. The locking between the main door and the auxiliary door is controlled in a rotating mode, so that the door lock of the main door and the auxiliary door is prevented from being easily opened.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

FIG. 1 is an exploded view of a primary and secondary door assembly provided by an embodiment of the present disclosure;

FIG. 2 is an enlarged partial schematic view at A of FIG. 1;

FIG. 3 is a schematic view of a portion of a primary and secondary door assembly provided by an embodiment of the present disclosure;

FIG. 4 is an exploded view of a partial structure of a primary and secondary door assembly provided by an embodiment of the present disclosure;

FIG. 5 is an exploded view of a partial structure of yet another primary and secondary door assembly provided by embodiments of the present disclosure;

FIG. 6 is a schematic structural diagram of a main door provided in accordance with an embodiment of the present disclosure;

FIG. 7 isbase:Sub>A schematic sectional view of the main door of FIG. 6 taken along the line A-A;

fig. 8 is a schematic structural diagram of a refrigerator according to an embodiment of the present disclosure.

Reference numerals:

100: a main door; 110: a locking portion; 111: a latch bolt; 200: a sub-door; 300: a slider; 310: a locking engagement portion; 311: locking the groove; 320: a sliding part; 321: a slide bar; 330: a guide portion; 331: a guide rail; 400: a rotating member; 410: a slide-fit portion; 411: a chute; 420: a driven gear; 500: a knob; 600: a base; 610: a guide fitting portion; 611: a linear guide groove; 700: a drive gear.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure may be understood as specific cases by those of ordinary skill in the art.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

With reference to fig. 1 to 7, an embodiment of the present disclosure provides a main and sub door assembly including a main door 100, a sub door 200, a slider 300, a rotation member 400, and a knob 500.

The main door 100 is provided with a latch 110; the sub-door 200 is provided to the main door 100 to be openable and closable; the slider 300 comprises a locking matching part 310 and a sliding part 320 which are connected, and the slider 300 slides relative to the main door 100 to drive the locking matching part 310 to match or release the locking part 110, so that the main door 100 and the auxiliary door 200 are locked or unlocked; the rotating member 400 is rotatably disposed on the sub door 200, the rotating member 400 includes a sliding engagement portion 410, the rotating member 400 rotates relative to the sub door 200, and the sliding engagement portion 410 engages with the sliding portion 320 to drive the sliding block 300 to slide relative to the main door 100; the knob 500 is connected to the rotating member 400 for driving the rotating member 400 to rotate relative to the sub-door 200.

In the main and sub door assembly of the present embodiment, the knob 500 drives the rotating member 400 to rotate relative to the sub door 200, so that the sliding engagement portion 410 drives the sliding portion 320 to slide relative to the main door 100, and further drives the locking engagement portion 310 to engage with or disengage from the locking portion 110, thereby realizing locking or unlocking of the main and sub doors. The locking or unlocking between the main door and the auxiliary door of the refrigerator is controlled in a rotating mode, so that the danger caused by the fact that the door locks of the main door and the auxiliary door of the refrigerator are easily opened is prevented, and the convenience for opening or closing the main door and the auxiliary door locks of the refrigerator is improved.

Optionally, the knob 500 rotates clockwise to drive the rotating member 400 to rotate clockwise relative to the auxiliary door 200, the sliding engagement portion 410 of the rotating member 400 engages with the sliding portion 320 of the slider 300 to drive the sliding portion 320 to slide relative to the main door 100, so that the locking engagement portion 310 of the slider 300 engages with the locking portion 110 of the main door 100 to achieve locking between the main door and the auxiliary door. With the arrangement, the user can lock the main door and the auxiliary door of the refrigerator only by rotating the knob 500, so that the main door and the auxiliary door of the refrigerator are prevented from being opened easily by children, and the convenience of locking the main door and the auxiliary door of the refrigerator is improved.

Optionally, the knob 500 rotates in the counterclockwise direction to drive the rotating member 400 to rotate counterclockwise relative to the auxiliary door 200, the sliding engagement portion 410 of the rotating member 400 engages with the sliding portion 320 of the slider 300 to drive the sliding portion 320 to slide relative to the main door 100, so that the locking engagement portion 310 of the slider 300 disengages from the locking portion 110 of the main door 100, thereby unlocking between the main door and the auxiliary door. With the arrangement, the user can unlock the main door and the auxiliary door of the refrigerator only by rotating the knob 500, so that the main door and the auxiliary door of the refrigerator are prevented from being opened easily by children, and the convenience for unlocking the main door and the auxiliary door of the refrigerator is improved.

Optionally, the main door 100 and the sub-door 200 of the refrigerator are transparent doors, so that on one hand, a user can see the condition of articles stored in the refrigerator through the transparent main and sub-doors without opening the main and sub-doors of the refrigerator, and the user can conveniently process mildewed foods or supplement required food materials in time; on the other hand, in the process that the user opens or closes the main door and the auxiliary door, the user can see the process that locking or unlocking is realized by mutual matching of all parts in the main door assembly and the auxiliary door assembly through the transparent main door and the auxiliary door, and the experience and the ornamental value of the user in the process of using the refrigerator are improved.

Alternatively, referring to fig. 1 to 5, the number of the sliding blocks 300 is plural, the plurality of sliding blocks 300 are radially arranged along the circumferential direction of the rotating member 400, and the sliding blocks 300 reciprocate along the radial direction of the rotating member 400 to engage or disengage the locking engagement portion 310 with or from the locking portion 110. The number of the sliding fit portions 410 is equal to the number of the sliding portions 320, and the sliding fit portions correspond to the sliding portions 320 one by one.

The number of the sliding blocks 300 is plural, and the sliding blocks 300 are radially arranged along the circumferential direction of the rotating member 400, and since the sliding blocks 300 are connected with the locking matching parts 310, the locking matching parts 310 of the sliding blocks 300 lock the main door and the auxiliary door from multiple directions, thereby increasing the locking effect between the main door and the auxiliary door. By the arrangement, the main door and the auxiliary door of the embodiment can be locked through rotation, and the convenience of locking or unlocking the main door and the auxiliary door of the refrigerator is greatly improved.

For example, the number of the sliding blocks is 8, 8 sliding blocks are radially arranged along the circumferential direction of the rotating member 400, and 8 sliding blocks reciprocate along the radial direction of the rotating member 400, so that 8 sliding portions are correspondingly arranged on the sliding engagement portions of the 8 sliding blocks, so that 8 locking engagement portions corresponding to the 8 sliding blocks are engaged with or disengaged from the 8 engagement portions. Since the 8 locking engagement portions are engaged with the 8 locking engagement portions, and the 8 sliding blocks are radially arranged along the circumferential direction of the rotating member 400. The arrangement is such that the main and sub door assemblies of the refrigerator are locked in 8 directions along the circumferential direction of the rotation member 400 under the condition that the locking engagement portion is engaged with the locking portion, thereby increasing the locking effect of the main and sub doors of the refrigerator.

For another example, the number of the sliding blocks is 8, 8 sliding blocks are uniformly radially arranged along the circumferential direction of the rotating member 400 at intervals, and 8 sliding blocks reciprocate along the radial direction of the rotating member 400, so that the sliding engagement portions of 8 sliding blocks are correspondingly provided with 8 sliding portions, so that 8 locking engagement portions corresponding to 8 sliding blocks are engaged with or disengaged from 8 engagement portions. Since the 8 locking engagement portions are engaged with the 8 locking engagement portions, and the 8 sliding blocks are radially and uniformly spaced along the circumferential direction of the rotating member 400. The arrangement is such that the main and sub door assemblies of the refrigerator are locked in 8 directions along the circumferential direction of the rotation member 400 under the condition that the locking engagement portion is engaged with the locking portion, thereby increasing the locking effect of the main and sub doors of the refrigerator. And because 8 sliders are radially and uniformly arranged at intervals along the circumferential direction of the rotating member 400, the locking positions are uniformly distributed along the circumferential direction of the rotating member 400, so that the stress of the 8 locking matching parts and the 8 matching parts is uniform when the locking matching parts and the 8 matching parts are matched, the risk that the single locking matching part or the matching part is damaged due to overlarge stress is reduced, and the service life of the main door assembly and the auxiliary door assembly is prolonged.

Alternatively, in conjunction with fig. 2 to 5, one of the sliding portion 320 and the sliding fitting portion 410 is a sliding slot 411, and the other is a sliding rod 321 matched with the sliding slot 411, and the sliding rod 321 is located in the sliding slot 411 and slides relative to the sliding slot 411 to slide the sliding block 300 relative to the main door 100.

The slider 300 includes a sliding portion 320, the rotating member 400 includes a sliding engagement portion 410, one of the sliding portion 320 and the sliding engagement portion 410 is a sliding slot 411, and the other is a sliding rod 321 adapted to the sliding slot 411. The arrangement is that one of the sliding block 300 and the rotating block 400 includes a sliding slot 411, and the other one includes a sliding rod 321 matching with the sliding slot 411, when the sliding rod 321 is located in the sliding slot 411 and slides relative to the sliding slot 411, the rotating block 400 drives the sliding block 300 to move, so that the sliding block 300 slides relative to the main door 100.

For example, the sliding portion 320 is a sliding slot 411, and the sliding engagement portion 410 is a sliding rod 321 fitted to the sliding slot 411. Thus, the sliding block 300 includes the sliding slot 411, and the rotating member 400 includes the sliding rod 321 matching with the sliding slot 411, when the sliding rod 321 is located in the sliding slot 411 and slides relative to the sliding slot 411, the rotating member 400 drives the sliding block 300 to move, so that the sliding block 300 slides relative to the main door 100.

For another example, the sliding portion 410 is a sliding slot 411, and the sliding portion 320 is a sliding rod 321 fitted to the sliding slot 411. Thus, the rotating member 400 includes the sliding slot 411, and the sliding block 300 includes a sliding rod 321 matching with the sliding slot 411, when the sliding rod 321 is located in the sliding slot 411 and slides relative to the sliding slot 411, the rotating member 400 drives the sliding block 300 to move, so that the sliding block 300 slides relative to the main door 100.

Alternatively, referring to fig. 3, 4 and 5, the sliding slot 411 is an arc-shaped slot, and the distance between the two ends of the arc-shaped slot and the rotation center of the rotating member 400 is not equal.

Because the sliding rod 321 is matched with the sliding slot 411, when the sliding slot 411 is an arc-shaped slot and the rotating member 400 rotates, the sliding rod 321 slides from one end of the arc-shaped slot to the other end of the arc-shaped slot relative to the arc-shaped slot, so that the sliding rod 321 is located at two positions, namely one end and the other end of the arc-shaped slot. Because the distance between the two ends of the arc-shaped groove and the rotation center of the rotating member 400 is unequal, the positions of the sliding rod 321 at the two ends of the arc-shaped groove relative to the rotation center of the rotating member 400 are different, that is, the sliding rod 321 is displaced relative to the rotating member 400 in the inner and outer directions. This is provided to facilitate the engagement and disengagement of the locking part 110 with and from the locking engagement part 310, wherein the direction close to the rotation center of the rotation member 400 is inward and the direction away from the rotation center of the rotation member 400 is outward.

For example, if the sliding portion 320 included in the slider 300 is a sliding rod 321 and the sliding engagement portion 410 included in the rotating member 400 is a sliding slot 411, when the rotating member 400 rotates, the sliding slot 411 rotates, and the sliding rod 321 is located in the sliding slot 411 and slides from one end of the sliding slot 411 to the other end. Because the distance between the two ends of the arc-shaped groove and the rotation center of the rotating member 400 is unequal, the positions of the sliding rod 321 at the two ends of the arc-shaped groove relative to the rotation center of the rotating member 400 are different, that is, the sliding rod 321 is displaced relative to the rotating member 400 in the inner and outer directions. The arrangement is such that the sliding slot 411 drives the sliding rod 321 to move, i.e. the rotating member 400 drives the sliding block 300 to move, so that the sliding block 300 is displaced relative to the rotating member 400, and the sliding block 300 slides relative to the main door 100, thereby facilitating the engagement or disengagement between the locking portion 110 and the locking engagement portion 310.

Optionally, in conjunction with fig. 2 to 5, the slider 300 further includes a guide portion 330; the assembly of the main and sub doors 200 further includes a base 600, the base 600 is provided with a guide engagement portion 610 engaged with the guide portion 330, and the guide portion 330 is engaged with the guide engagement portion 610 to guide the slider 300 to perform a linear reciprocating motion when the sliding portion 320 is engaged with the sliding engagement portion 410.

The slider 300 includes a guide portion 330, and the base 600 is provided with a guide engagement portion 610 engaged with the guide portion 330, i.e., the slider 300 is engaged with the base 600. When the sliding portion 320 is engaged with the sliding engagement portion 410, that is, when the rotating portion drives the slider 300 to move, since the guide engagement portion 610 of the base 600 is engaged with the guide portion 330 of the slider 300, the guide engagement portion 610 of the base 600 guides the movement direction of the guide portion 330 of the slider 300, that is, the slider 300 is guided to make a linear reciprocating motion.

Alternatively, in conjunction with fig. 2 to 5, one of the guide part 330 and the guide fitting part 610 is a guide rail 331, and the other is a linear guide groove 611, and the guide rail 331 is located in the linear guide groove 611 and can linearly reciprocate with respect to the linear guide groove 611.

The slider 300 includes a guide portion 330, and the base 600 includes a guide engagement portion 610, when the guide portion 330 engages with the guide engagement portion 610, i.e., the guide rail 331 and the linear guide groove 611 engage. Since the guide rail 331 is located in the linear guide groove 611, the linear guide groove 611 guides the moving direction of the guide rail 331, so that the guide rail 331 makes a linear reciprocating motion with respect to the linear guide groove 611 or the linear guide groove 611 makes a linear reciprocating motion with respect to the guide rail 331, so that the slider 300 is engaged with the base 600 and the slider 300 makes a linear reciprocating motion with respect to the base 600.

Specifically, when the guide part 330 of the slider 300 is the guide rail 331, the guide mating part 610 of the base 600 is the linear guide groove 611, the guide rail 331 is located in the linear guide groove 611, and the guide rail 331 makes a linear reciprocating motion relative to the linear guide groove 611, that is, the guide part 330 makes a linear reciprocating motion relative to the guide mating part 610, so that the slider 300 makes a linear reciprocating motion relative to the base 600.

Specifically, when the guide part 330 of the slider 300 is the linear guide groove 611, the guide mating part 610 of the base 600 is the guide rail 331, the guide rail 331 is located in the linear guide groove 611, and the linear guide groove 611 makes a linear reciprocating motion relative to the guide rail 331, that is, the guide part 330 makes a linear reciprocating motion relative to the guide mating part 610, so that the slider 300 makes a linear reciprocating motion relative to the base 600.

Alternatively, referring to fig. 1 to 5, one end of the guide portion 330 is connected to the sliding portion 320, and the other end of the guide portion 330 is connected to the locking fitting portion 310.

One end of the guide portion 330 is connected to the sliding portion 320, and the other end of the guide portion 330 is connected to the locking mating portion 310, such that one end of the slider 300 is the sliding portion 320 and the other end of the slider 300 is the locking mating portion 310. The arrangement is such that when the slider 300 linearly reciprocates relative to the base 600, one end of the slider 300 is the sliding portion 320 and the sliding engagement portion 410 of the rotating member 400, which provides power for the linear reciprocation of the slider 300. The other end of the slider 300 is a locking engagement portion 310 which is engaged with the locking portion 110 of the main door 100 to provide a locking condition for the locking between the main door 100 and the sub door 200, so that the locking between the main door 100 and the sub door 200 can be realized by the engagement of the locking portion 110 and the locking engagement portion 310.

Alternatively, with reference to fig. 1 to 7, one of the locking part 110 and the locking mating part 310 is the locking tongue 111, and the other is the locking groove 311 that mates with the locking tongue 111; the latch tongue 111 slides into the latch groove 311 or slides out of the latch groove 311 to engage or disengage the latch 110 with the latch engaging part 310.

The main door 100 is provided with the latch 110, the slider 300 is provided with the latch fitting portion 310, one of the latch 110 and the latch fitting portion 310 is the latch 111, and the other is the locking groove 311 fitted with the latch 111, i.e. one of the main door 100 and the slider 300 is provided with the latch 111, and the other is provided with the locking groove 311, and the latch 111 slides into the locking groove 311 or slides out of the locking groove 311, so that the latch 110 is fitted with or disengaged from the latch fitting portion 310, and the main door 100 and the auxiliary door 200 are latched or unlatched.

Specifically, the latch 110 of the main door 100 is a latch 111, the latch fitting 310 of the slider 300 is a lock slot 311, and the latch 111 slides into the lock slot 311 or slides out of the lock slot 311, so that the latch 110 is fitted with or disengaged from the latch fitting 310, and the main door 100 and the auxiliary door 200 are locked or unlocked.

Specifically, the locking portion 110 of the main door 100 is a locking slot 311, the locking mating portion 310 of the slider 300 is a locking tongue 111, and the locking tongue 111 slides into the locking slot 311 or slides out of the locking slot 311, so that the locking portion 110 is matched with or separated from the locking mating portion 310, and the locking or unlocking of the main door 100 and the auxiliary door 200 is realized.

Optionally, with reference to fig. 1 to 8, the rotating member 400 is a driven gear 420, and the main and sub door assemblies further include: the driving gear 700 is connected to the knob 500 and engaged with the driven gear 420, and rotating the knob 500 drives the driving gear 700 to rotate so as to drive the driven gear 420 to rotate.

When the user rotates the knob 500, the knob 500 drives the driving gear 700, and the driving gear 700 is engaged with the driven gear 420, so that the driven gear 420 rotates to provide a driving force for the rotating member 400.

For example, when a user rotates the knob 500 clockwise, the knob 500 drives the driving gear 700 to rotate clockwise, the driving gear 700 drives the driven gear 420 to rotate counterclockwise, the sliding slot 411 of the driven gear 420 drives the sliding rod 321 of the slider 300 to slide, the guide rail 331 of the slider 300 moves linearly along the linear guide slot 611 of the base 600, so that the latch tongue 111 of the slider 300 slides into the latch slot 311 of the main door 100, and the locking between the main door and the auxiliary door is achieved. With the arrangement, the main door and the auxiliary door of the refrigerator can be locked only by rotating the knob 500, so that the main door and the auxiliary door of the refrigerator are prevented from being opened easily by children, and the convenience for locking the main door and the auxiliary door of the refrigerator is improved.

For another example, when the user rotates the knob 500 in the counterclockwise direction, the knob 500 drives the driving gear 700 to rotate counterclockwise, the driving gear 700 drives the driven gear 420 to rotate clockwise, the sliding slot 411 of the driven gear 420 drives the sliding rod 321 of the slider 300 to slide, the guide rail 331 of the slider 300 moves linearly along the linear guide slot 611 of the base 600, so that the latch tongue 111 of the slider 300 slides out of the locking slot 311 of the main door 100, and the unlocking between the main door and the auxiliary door is realized. With the arrangement, a user can unlock the main door and the auxiliary door of the refrigerator only by rotating the knob 500, so that the main door and the auxiliary door of the refrigerator are prevented from being easily opened by children, and the convenience for unlocking the main door and the auxiliary door of the refrigerator is improved.

The technical scheme of the second aspect of the utility model provides a refrigerator; including the primary and secondary door assemblies as described in the embodiments above. The main and auxiliary door assemblies in any of the above embodiments have all the advantages of the main and auxiliary door assemblies in any of the above embodiments, and are not described herein again.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and illustrated in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A primary and secondary door assembly, comprising:

a main door (100) provided with a locking portion (110);

a sub-door (200) which is provided to the main door (100) so as to be capable of opening and closing;

the sliding block (300) comprises a locking matching part (310) and a sliding part (320) which are connected, and the sliding block (300) slides relative to the main door (100) to drive the locking matching part (310) to be matched with or disengaged from the locking part (110) so as to enable the main door (100) and the auxiliary door (200) to be locked or unlocked;

the rotating piece (400) is rotatably arranged on the auxiliary door (200), the rotating piece (400) comprises a sliding matching part (410), the rotating piece (400) rotates relative to the auxiliary door (200), and the sliding matching part (410) is matched with the sliding part (320) to drive the sliding block (300) to slide relative to the main door (100);

and the knob (500) is connected with the rotating piece (400) and is used for driving the rotating piece (400) to rotate relative to the auxiliary door (200).

2. The main-auxiliary door assembly as claimed in claim 1,

the number of the sliding blocks (300) is multiple, the sliding blocks (300) are arranged in a radial mode along the circumferential direction of the rotating piece (400), the sliding blocks (300) reciprocate along the radial direction of the rotating piece (400) to enable the locking matching portions (310) to be matched with or disengaged from the locking portions (110), and the number of the sliding matching portions (410) is equal to that of the sliding portions (320) and corresponds to that of the sliding portions (320).

3. The main-auxiliary door assembly as claimed in claim 1,

one of the sliding part (320) and the sliding matching part (410) is a sliding groove (411), the other one is a sliding rod (321) matched with the sliding groove (411), and the sliding rod (321) is located in the sliding groove (411) and slides relative to the sliding groove (411) so that the sliding block (300) slides relative to the main door (100).

4. The main-auxiliary door assembly as claimed in claim 3,

the sliding groove (411) is an arc-shaped groove, and the distance between the two ends of the arc-shaped groove in the length direction and the rotating center of the rotating piece (400) is unequal.

5. The main-auxiliary door assembly as claimed in claim 1,

the slider (300) further comprises a guide portion (330); the primary and secondary door assemblies further comprise:

the base (600) is provided with a guide matching part (610) matched with the guide part (330), the guide part (330) is matched with the guide matching part (610), and when the sliding part (320) is matched with the sliding matching part (410), the sliding block (300) is guided to do linear reciprocating motion.

6. The main-auxiliary door assembly as claimed in claim 5,

one of the guide part (330) and the guide fitting part (610) is a guide rail (331), and the other is a linear guide groove (611), and the guide rail (331) is located in the linear guide groove (611) and can reciprocate linearly relative to the linear guide groove (611).

7. The main-auxiliary door assembly as claimed in claim 5,

one end of the guide part (330) is connected with the sliding part (320), and the other end of the guide part (330) is connected with the locking matching part (310).

8. The main-auxiliary door assembly as claimed in claim 1,

one of the locking part (110) and the locking matching part (310) is a bolt (111), and the other one is a lock groove (311) matched with the bolt (111); the locking tongue (111) slides into the locking groove (311) or slides out of the locking groove (311) so that the locking part (110) is matched with or disengaged from the locking matching part (310).

9. Main and auxiliary door assembly according to any of claims 1 to 8,

the rotating member (400) is a driven gear (420), and the main and sub door assemblies further comprise:

the driving gear (700) is connected with the knob (500) and meshed with the driven gear (420), and the knob (500) is rotated to drive the driving gear (700) to rotate so as to drive the driven gear (420) to rotate.

10. A refrigerator, characterized by comprising:

a primary and secondary door assembly as claimed in any one of claims 1 to 9.

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