WO2025067203A1 - Door body assembly and refrigeration device - Google Patents

Abstract

The present application relates to the technical field of household appliances, and discloses a door body assembly, comprising a main door, an auxiliary door, a handle and a clamping block assembly. The auxiliary door is rotatably arranged on the main door by means of an auxiliary door hinge, and the auxiliary door hinge comprises an auxiliary door hinge shaft arranged on the auxiliary door. The handle is movably arranged on the auxiliary door. The clamping block assembly comprises a first clamping block and a second clamping block, and the first clamping block and the second clamping block are oppositely arranged on two sides of the auxiliary door hinge shaft. Additionally, the present application further discloses a refrigeration device.

Description

Door assemblies and refrigeration equipment

This application is based on Chinese patent application with application number 202311246694.2 and application date September 25, 2023, and Chinese patent application with application number 202311243261.1 and application date September 25, 2023, and claims the priority of the Chinese patent application. The entire contents of the Chinese patent application are hereby introduced into this application as a reference.

Technical Field

The present application relates to the technical field of household appliances, for example, to a door assembly and a refrigeration device.

Background Art

With the improvement of living standards, users' requirements for refrigerator storage, energy saving and freshness preservation are gradually increasing. Most refrigerators on the market are single-door or double-door refrigerators with limited capacity. When the refrigerator door is opened, a large amount of cold air is lost, resulting in low refrigerator efficiency. Therefore, door-in-door refrigerators have emerged.

In the door-in-door refrigerator in the related art, a door lock is provided on the secondary door for locking the secondary door to the main door so that the secondary door can move together with the main door to prevent the secondary door from being opened when the user opens the main door.

In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

Most of the existing door-in-door refrigerators with door locks on the secondary doors have separate door locks on the door body to lock the secondary door, which increases the thickness of the door body and reduces the user experience.

It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field.

Summary of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key/critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

The disclosed embodiments provide a door body assembly and a refrigeration device, which can lock a secondary door to a main door without providing a separate door lock on the door body, thereby reducing the thickness of the door body and improving the user experience.

The disclosed embodiment provides a door body assembly, which includes a main door, a secondary door, a handle and a clamp block assembly. The secondary door is rotatably arranged on the main door through a secondary door hinge, and the secondary door hinge includes a secondary door hinge shaft arranged on the secondary door. The handle is movably arranged on the secondary door. The clamp block assembly includes a first clamp block and a second clamp block, and the first clamp block and the second clamp block are relatively arranged on both sides of the secondary door hinge shaft.

In some embodiments, the door body assembly also includes a handle and a driving guide piston, wherein the handle is movably arranged on the auxiliary door; the driving guide piston is movably arranged at a position corresponding to the auxiliary door and the handle, and the driving guide piston is transmission-connected to the clamping block assembly; the handle is connected to the driving guide piston through a linkage assembly; the handle can drive the driving guide piston to move in the vertical direction through the linkage assembly, thereby driving the first clamping block and the second clamping block to clamp or release the hinge shaft of the auxiliary door.

In some embodiments, the linkage assembly includes a linkage guide piston, which is movably arranged at a position corresponding to the auxiliary door and the handle, and includes a linkage piston part transmission-connected to the driving guide piston and a linkage connecting rod connected to the handle; wherein the handle can drive the driving guide piston to move vertically through the linkage guide piston.

In some embodiments, the door body assembly also includes a locking guide piston and a gear set, wherein the locking guide piston includes a locking piston portion arranged corresponding to the auxiliary door hinge shaft; the gear set rotatably connects the first clamp block and the second clamp block to the auxiliary door; the locking guide piston can move in the vertical direction and drive the first clamp block and the second clamp block to rotate in the direction close to or away from the auxiliary door hinge shaft, so that the first clamp block and the second clamp block clamp or release the auxiliary door hinge shaft.

In some embodiments, the locking piston portion is provided with a locking guide groove, and the first clamp block and the second clamp block are slidably arranged in the locking guide groove; wherein, when the locking guide piston moves, the locking guide groove can drive the first clamp block and the second clamp block to rotate.

In some embodiments, the gear set includes a first gear and a second gear, wherein the first gear includes a first central axis rotationally connected to the auxiliary door and a first eccentric axis rotationally connected to the first clamping block; the second gear includes a second central axis rotationally connected to the auxiliary door and a second eccentric axis rotationally connected to the second clamping block; the first gear and the second gear are meshingly connected.

The embodiment of the present disclosure also provides a refrigeration device, which includes a box body and the above-mentioned door body assembly, wherein the main door is rotatably arranged on the box body.

The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

FIG1 is a schematic structural diagram of a refrigeration equipment assembly provided by an embodiment of the present disclosure;

FIG2 is a schematic structural diagram of a door assembly provided by an embodiment of the present disclosure;

FIG3 is a cross-sectional view of a door assembly provided by an embodiment of the present disclosure;

FIG4 is a schematic diagram of a partial structure of a door assembly provided in an embodiment of the present disclosure;

FIG5 is a schematic diagram of a partial structure of another door assembly provided by an embodiment of the present disclosure;

FIG6 is a schematic diagram of a structure in which a clamping block assembly is rotatably connected to a gear set according to an embodiment of the present disclosure;

FIG7 is a schematic structural diagram of a first gear provided in an embodiment of the present disclosure;

FIG8 is a cross-sectional view of another door assembly provided by an embodiment of the present disclosure;

FIG9 is a partial structural schematic diagram of another door assembly provided by an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a first connecting rod slidably connected to a linkage guide groove provided in an embodiment of the present disclosure.

Reference numerals:

01: box body; 02: main door; 03: auxiliary door; 310: handle seat; 04: handle; 410: sliding part;

10: Auxiliary door hinge; 11: Auxiliary door hinge shaft;

20: clamping block assembly; 21: first clamping block; 22: second clamping block;

30: locking guide piston; 31: locking piston portion; 32: locking connecting rod; 33: locking barrel seat; 34: unlocking spring; 35: locking guide groove; 36: locking guide cavity;

40: driving guide piston; 41: driving piston portion; 421: first connecting rod; 422: second connecting rod; 423: sliding protrusion; 43: driving bucket seat; 44: driving spring; 45: driving guide chamber;

50: transmission assembly; 51: first pulley; 52: second pulley; 53: transmission rope;

60: linkage assembly; 600: linkage guide piston; 61: linkage piston portion; 62: linkage connecting rod; 63: linkage barrel seat; 64: linkage guide groove;

70: gear set; 71: first gear; 711: first eccentric shaft; 712: first center shaft; 72: second gear; 721: second eccentric shaft.

DETAILED DESCRIPTION

In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

The reference to any related art in the specification is not and should not be regarded as an admission or any form of implication that the related art forms part of the common general knowledge in the application area or any other jurisdiction, or that the related art can be reasonably understood and regarded as relevant by a person skilled in the art.

The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such use The terms may be interchanged where appropriate to facilitate the description of embodiments of the disclosed embodiments herein.In addition, the terms "includes,""comprises," and "has," and any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances. Unless otherwise specified, the term "plurality" means two or more.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B indicates: A or B.

The term "and/or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and/or B means: A or B, or, A and B.

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in FIGS. 1 to 10 , the embodiments of the present disclosure provide a door body assembly and a refrigeration device, which can lock the auxiliary door 03 to the main door 02 without providing a separate door lock on the door body, thereby reducing the thickness of the door body and improving the user experience.

As shown in FIGS. 1 to 10 , the embodiment of the present disclosure provides a door body assembly, which includes a main door 02, a secondary door 03 and a clamping block assembly 20. The secondary door 03 is rotatably arranged on the main door 02 through a secondary door hinge 10, and the secondary door hinge includes a secondary door hinge shaft 11 arranged on the secondary door 03. The clamping block assembly 20 includes a first clamping block 21 and a second clamping block 22 which are transmission-connected to a driving guide piston 40, and the first clamping block 21 and the second clamping block 22 are arranged on opposite sides of the secondary door hinge shaft 11.

The door assembly provided in the embodiment of the present disclosure is exemplarily applied to a door-in-door refrigerator. The door assembly includes a main door 02 and a sub-door 03. A storage cavity is constructed inside the main door, and the sub-door is openably and closably arranged on the main door through a sub-door hinge. The storage object is taken in and placed in the storage cavity only when the sub-door is opened. The storage object is taken in and placed in the refrigerated space of the refrigerator when the main door is opened.

In order to prevent the auxiliary door from being opened by mistake when the main door is opened, and the main door from being opened by mistake when the auxiliary door is opened, the door body assembly also includes The clamp block assembly 20 is provided. When the clamp block assembly 20 clamps the auxiliary door hinge shaft of the auxiliary door hinge, the auxiliary door cannot rotate relative to the main door, thereby locking the auxiliary door. When the clamp block assembly 20 releases the clamping of the auxiliary door hinge shaft, the auxiliary door is unlocked.

The door body assembly provided in the embodiment of the present disclosure locks the auxiliary door by means of a clamping block assembly in cooperation with the auxiliary door hinge shaft, and no additional door lock is required, thereby reducing the cost of the door body assembly and allowing the auxiliary door to be thinner.

Optionally, the door body assembly further includes a handle and a driving guide piston 40. The handle 04 is movably disposed on the auxiliary door 03. The driving guide piston 40 is movably disposed at a position of the auxiliary door 03 corresponding to the handle 04. The handle 04 is connected to the driving guide piston 40 through a linkage assembly 60. The handle 04 can drive the driving guide piston 40 to move in the vertical direction through the linkage assembly 60, thereby driving the first clamping block 21 and the second clamping block 22 to clamp or release the auxiliary door hinge shaft 11.

Taking the application of the door assembly to a refrigeration device as an example, the refrigeration device includes a box body 01 provided with a storage cavity. The main door 02 is rotatably arranged on the box body 01 to open or close the storage cavity of the box body 01. The auxiliary door hinge 10 also includes an auxiliary door hinge plate, and the auxiliary door hinge shaft 11 is arranged at a position where the auxiliary door hinge plate corresponds to the auxiliary door 03. The auxiliary door hinge plate is fixedly arranged on the main door 02, and the auxiliary door hinge shaft 11 is rotatably arranged on the auxiliary door 03 to rotatably install the auxiliary door 03 on the main door 02. The handle 04 is movably arranged on the auxiliary door 03, and the user can drive the main door 02 to rotate through the handle 04. The drive guide piston 40 is movably arranged on the auxiliary door 03, and is arranged at a position where the auxiliary door 03 corresponds to the handle 04. The handle 04 is connected to the drive guide piston 40 through the linkage assembly 60, and the user can drive the drive guide piston 40 to move vertically upward or vertically downward through the handle 04 and the linkage assembly 60.

When the main door 02 closes the storage chamber, the first clamp 21 and the second clamp 22 are in a state of releasing the auxiliary door hinge shaft 11, as shown in FIG4. If the user needs to open the main door 02, the handle 04 can be directly pulled. At this time, the handle 04 drives the driving guide piston 40 to move vertically downward through the linkage assembly 60, and then the driving guide piston 40 drives the first clamp 21 and the second clamp 22 to clamp the auxiliary door hinge shaft 11. In this way, the first clamp 21 and the second clamp 22 can lock the auxiliary door 03 and the auxiliary door hinge shaft 11 with each other, that is, the user cannot rotate the auxiliary door 03 relative to the main door 02, as shown in FIG5. After the user closes the main door 02, the driving guide piston 40 moves vertically upward and drives the first clamp 21 and the second clamp 22 to release the auxiliary door hinge shaft 11. At this time, the first clamp 21 and the second clamp 22 unlock the auxiliary door hinge shaft 11, that is, the user can rotate the auxiliary door 03 relative to the main door 02 alone.

In practical applications, the secondary door 03 is also provided with a handle. When the first clamping block 21 and the second clamping block 22 release the secondary door hinge shaft 11, the user can directly pull the secondary door 03 to rotate relative to the main door 02 through the handle.

As shown in FIGS. 8 to 10 , in some embodiments, the linkage assembly 60 includes a linkage guide piston 600. The linkage guide piston 600 is movably disposed at a position corresponding to the auxiliary door 03 and the handle 04, and includes a linkage piston portion 61 that is transmission-connected to the driving guide piston 40 and a linkage connecting rod 62 that is connected to the handle 04. The handle 04 can drive the driving guide piston 40 to move in a vertical manner through the linkage guide piston 600.

Specifically, the linkage guide piston 600 is horizontally arranged at the position corresponding to the auxiliary door 03 and the handle 04. The piston 600 includes a linkage piston portion 61 that is transmission-connected to the driving guide piston 40 and a linkage connecting rod 62 that extends toward the handle 04, as shown in FIGS. 8 and 9. The handle 04 is fixedly connected to the linkage connecting rod 62. When the user pulls the handle 04, the handle 04 can drive the linkage piston portion 61 to move horizontally through the linkage connecting rod 62. At this time, the linkage piston portion 61 can drive the driving guide piston 40 to rotate in the vertical direction.

As shown in Fig. 9 and Fig. 10, in some embodiments, the linkage piston portion 61 is obliquely provided with a linkage guide groove 64. A first connecting rod 421 is extended from one side of the driving guide piston 40 toward the linkage guide groove 64. The first connecting rod 421 is slidably connected to the linkage guide groove 64.

Specifically, the linkage guide groove 64 is obliquely arranged on the linkage piston part 61. The end of the first connecting rod 421 corresponding to the linkage guide groove 64 is provided with a sliding protrusion 423. The sliding protrusion 423 is inserted into the linkage guide groove 64, and the sliding protrusion 423 slides in the linkage guide groove 64. In this way, when the linkage guide piston 600 moves horizontally, the sliding protrusion 423 can slide in the linkage guide groove 64. At this time, the wall surface of the linkage guide groove 64 can push the sliding protrusion 423 to move downward or upward, so as to drive the driving guide piston 40 to move downward or upward.

As shown in FIG. 9 , optionally, the driving guide piston 40 is disposed above the linkage guide piston 600 , and one end of the first connecting rod 421 is fixedly disposed on the lower end surface of the driving piston portion 41 , and the second end of the first connecting rod 421 extends downward to the linkage guide groove 64 .

As shown in FIGS. 9 and 10 , in some embodiments, the linkage guide groove 64 includes a first end close to the handle 04 and a second end away from the handle 04 , and the height of the first end of the linkage guide groove 64 is higher than the height of the second end.

Specifically, when the user pulls the handle 04, the handle 04 can drive the linkage guide piston 600 to move toward the direction close to the handle 04. At this time, the wall surface of the linkage guide groove 64 can push the driving guide piston 40 to move downward through the sliding protrusion 423, so as to drive the first clamping block 21 and the second clamping block 22 to clamp the auxiliary door hinge shaft 11. When the user pushes the handle 04, the handle 04 can drive the linkage guide piston 600 to move away from the handle 04. At this time, the wall surface of the linkage guide groove 64 can push the driving guide piston 40 to move upward through the sliding protrusion 423, so as to drive the first clamping block 21 and the second clamping block 22 to release the auxiliary door hinge shaft 11.

As shown in Fig. 8 and Fig. 9, in some embodiments, the linkage assembly 60 further includes a linkage barrel seat 63. The linkage barrel seat 63 is provided with a linkage guide cavity. The linkage piston portion 61 is disposed in the linkage guide cavity, and the linkage piston portion 61 can move in the horizontal direction along the linkage guide cavity.

Specifically, the linkage barrel seat 63 is fixedly arranged at a position corresponding to the auxiliary door 03 and the linkage guide piston 600, and a hollow cavity is arranged in the linkage barrel seat 63 to form a linkage guide cavity. Among them, the guiding direction of the linkage guide cavity is limited to approaching the handle 04 or away from the handle 04. The linkage piston part 61 is movably arranged in the linkage guide cavity, and the linkage piston part 61 can slide along the linkage guide cavity in a direction close to or away from the handle 04.

Optionally, the wall surface of the linkage barrel seat 63 facing the handle 04 is provided with an opening, and the linkage connecting rod 62 can pass through the opening. The linkage bucket seat 63 is extended and fixedly connected to the handle 04 .

Optionally, the linkage assembly 60 further includes a linkage spring. The linkage spring is arranged on the side of the linkage piston portion 61 facing the handle 04, and the two ends of the linkage spring are respectively in contact with the linkage piston portion 61 and the auxiliary door 03. In this arrangement, the linkage spring can push the linkage guide piston 600 to move in a direction away from the handle 04.

As shown in FIG8 , in some embodiments, the driving guide piston 40 includes a driving piston portion. The door assembly further includes a driving bucket seat 43. The driving bucket seat 43 is provided with a driving guide cavity 45. The driving piston portion 41 is disposed in the driving guide cavity 45, and the driving piston portion 41 can move in a vertical direction along the driving guide cavity 45.

Specifically, the driving barrel seat 43 is fixedly arranged at a position corresponding to the auxiliary door 03 and the driving guide piston 40, and a hollow cavity is arranged in the driving barrel seat 43 to form a driving guide cavity 45. The driving piston part 41 is movably arranged in the driving guide cavity 45, and the driving piston part 41 can slide in the vertical direction along the driving guide cavity 45.

As shown in Fig. 8, optionally, the door assembly further includes a driving spring 44. The first end of the driving spring 44 is connected to the lower end surface of the driving piston portion 41, and the second end of the driving spring 44 is connected to the bottom wall surface of the driving guide cavity 45. When the driving spring 44 is in a natural state, the driving spring 44 can push the driving piston portion 41 to move upward.

As shown in FIG8 , in some embodiments, a handle seat 310 is provided at a position corresponding to the sub-door 03 and the handle 04, and the handle seat 310 is provided with a handle guide cavity. The handle 04 is provided with a sliding portion 410 inserted in the handle guide cavity. The handle 04 can slide along the handle guide cavity toward or away from the door body through the sliding portion 410.

Specifically, the handle seat 310 is disposed on the side of the secondary door 03 away from the main door 02 , and the sliding portion 410 of the handle 04 is inserted into the handle guide cavity. The guide direction of the handle guide cavity is defined as approaching or moving away from the secondary door 03 .

As shown in Fig. 8, optionally, the two ends of the handle 04 are respectively provided with sliding parts 410, and the positions of the auxiliary door 03 corresponding to the two sliding parts 410 are respectively provided with two handle seats 310. Such a configuration can improve the stability of the handle 04 when sliding.

As shown in Figures 8 and 9, optionally, the driving guide piston 40 is further provided with a second connecting rod 422, and the second connecting rod 422 is provided on the side of the driving piston portion 41 facing the transmission assembly 50. The transmission assembly 50 is drivingly connected to the driving connecting rod.

As shown in Fig. 8 and Fig. 9, optionally, the driving guide piston 40 is disposed below the transmission assembly 50, and one end of the second connecting rod 422 is fixedly disposed on the upper end surface of the driving piston portion 41, and the second end of the second connecting rod 422 is extended upward. The transmission assembly 50 is connected to the second end of the second connecting rod 422.

As shown in FIG. 2 , in some embodiments, the door body assembly further includes a transmission assembly 50. The transmission assembly 50 is used to transmission-connect the clamp block assembly 20 to the driving guide piston 40. The driving guide piston 40 can move in the vertical direction and drive the clamp block assembly 20 to clamp or release the auxiliary door hinge shaft 11 through the transmission assembly 50.

Specifically, the clamp block assembly 20 is connected to the driving guide piston 40 through the transmission assembly 50 so that the driving guide The piston 40 drives the first clamping block 21 and the second clamping block 22 to move synchronously and clamp or release the auxiliary door hinge shaft 11.

As shown in Figures 3 to 6, optionally, the door body assembly also includes a locking guide piston 30 and a gear set 70. The locking guide piston 30 includes a locking piston portion 31 arranged corresponding to the auxiliary door hinge shaft 11. The gear set 70 rotatably connects the first clamp block 21 and the second clamp block 22 to the auxiliary door 03. Among them, the locking guide piston 30 can move in the vertical direction and drive the first clamp block 21 and the second clamp block 22 to rotate in the direction close to or away from the auxiliary door hinge shaft 11, so that the first clamp block 21 and the second clamp block 22 clamp or release the auxiliary door hinge shaft 11.

Specifically, the locking guide piston 30 is movably arranged on the auxiliary door 03, and the locking piston part 31 is arranged corresponding to the auxiliary door hinge shaft 11. The first clamp block 21 and the second clamp block 22 are respectively rotatably arranged on the auxiliary door 03 through the gear set 70, and the first clamp block 21 and the second clamp block 22 are relatively arranged on both sides of the auxiliary door hinge shaft 11. The locking piston part 31 is transmission-connected with the first clamp block 21 and the second clamp block 22 to simultaneously drive the first clamp block 21 and the second clamp block 22 to rotate in a direction close to or away from the auxiliary door hinge shaft 11. The driving guide piston 40 is transmission-connected with the locking guide piston 30. The driving guide piston 40 can drive the locking guide piston 30 to move in the vertical direction.

As shown in FIG. 4 and FIG. 5 , optionally, the locking guide piston 30 and the gear set 70 are arranged below the auxiliary door hinge shaft 11 .

As shown in Fig. 4 and Fig. 5, in some embodiments, the locking piston portion 31 is provided with a locking guide groove 35, and the first clamping block 21 and the second clamping block 22 are slidably disposed in the locking guide groove 35. When the locking guide piston 30 moves, the locking guide groove 35 can drive the first clamping block 21 and the second clamping block 22 to rotate.

Specifically, the middle of the locking guide groove 35 is arranged corresponding to the auxiliary door hinge shaft 11, and the left and right halves of the locking guide groove 35 are bent and extended downward. The first clamp 21 is slidably arranged in the left half of the locking guide groove 35, and the second clamp 22 is slidably arranged in the right half of the locking guide groove 35. Among them, the curvature of the left half of the locking guide groove 35 is arranged corresponding to the rotation track of the first clamp 21, and the curvature of the right half of the locking guide groove 35 is arranged corresponding to the rotation track of the second clamp 22, so as to avoid the locking guide groove 35 interfering with the rotation of the first clamp 21 and the second clamp 22.

When the locking guide piston 30 moves upward, the locking guide groove 35 can simultaneously push the first clamp block 21 and the second clamp block 22 to rotate toward the middle of the locking guide groove 35 until the first clamp block 21 and the second clamp block 22 clamp the auxiliary door hinge shaft 11, as shown in Figure 5. When the locking guide piston 30 moves downward, the locking guide groove 35 can simultaneously push the first clamp block 21 and the second clamp block 22 to rotate away from the middle, so that the first clamp block 21 and the second clamp block 22 release the auxiliary door hinge shaft 11, as shown in Figure 4.

As shown in FIG6 , in some embodiments, the gear set 70 includes a first gear 71 and a second gear 72. The first gear 71 includes a first central shaft 712 rotatably connected to the auxiliary door 03 and a first eccentric shaft 711 rotatably connected to the first clamping block 21. The second gear 72 includes a second central shaft 712 rotatably connected to the auxiliary door 03 and a first eccentric shaft 711 rotatably connected to the second clamping block 22. The first gear 71 and the second gear 72 are meshed and connected.

Specifically, the first gear 71 is rotatably arranged at a position corresponding to the auxiliary door 03 and the first clamping block 21, and the second gear 72 is rotatably arranged at a position corresponding to the auxiliary door 03 and the second clamping block 22. The first central axis 712 and the first eccentric axis 711 are relatively arranged on both sides of the first gear 71, and the first gear 71 is rotatably arranged on the auxiliary door 03 through the first central axis 712, and is rotatably connected to the first clamping block 21 through the first eccentric axis 711. In this way, when the locking guide drives the first clamping block 21 to move, the first clamping block 21 can rotate around the first eccentric axis 711 and the first central axis 712 at the same time. The second central axis and the second eccentric axis 721 are relatively arranged on both sides of the second gear 72, and the second gear 72 is rotatably arranged on the auxiliary door 03 through the second central axis, and is rotatably connected to the second clamping block 22 through the second eccentric axis 721. In this way, when the locking guide drives the second clamping block 22 to move, the second clamping block 22 can rotate around the second eccentric axis 721 and the second central axis at the same time. With such arrangement, the locking guide groove 35 can drive the first clamping block 21 and the second clamping block 22 to rotate toward or away from the auxiliary door hinge shaft 11 .

At the same time, meshing the first gear 71 and the second gear 72 can make the first clamp 21 and the second clamp 22 move synchronously to avoid the first clamp 21 and the second clamp 22 being unable to clamp or release the auxiliary door hinge shaft 11 at the same time.

As shown in Figures 4 and 5, in some embodiments, the door assembly further includes a locking barrel seat 33. The locking barrel seat 33 is provided with a locking guide cavity 36. The locking piston portion 31 is disposed in the locking guide cavity 36, and the locking piston portion 31 can move in the vertical direction along the locking guide cavity 36.

Specifically, the locking barrel seat 33 is fixedly arranged at a position corresponding to the auxiliary door 03 and the auxiliary door hinge shaft 11, and a hollow cavity is arranged in the locking barrel seat 33 to form a locking guide cavity 36. The locking piston part 31 is movably arranged in the locking guide cavity 36, and the locking piston part 31 can slide in the vertical direction along the locking guide cavity 36.

Optionally, an opening is provided at a position of the locking guide cavity 36 corresponding to the auxiliary door hinge shaft 11 , and the auxiliary door hinge shaft 11 can be inserted into the locking guide cavity 36 through the opening.

In some embodiments, a hinge shaft opening communicating with the locking guide groove 35 is provided at a position corresponding to the locking piston portion 31 and the auxiliary door hinge shaft 11. The auxiliary door hinge shaft 11 can be inserted into the locking guide groove 35 through the hinge shaft opening.

Specifically, the upper wall surface of the locking piston portion 31 is provided with a hinge shaft opening, through which the auxiliary door hinge shaft 11 can be inserted into the locking guide groove 35. The size of the hinge shaft opening is greater than or equal to the size of the auxiliary door hinge shaft 11 to prevent the auxiliary door hinge shaft 11 from interfering with the movement of the locking guide piston 30 in the vertical direction.

In practical applications, the size of the hinge shaft opening is larger than the size of the auxiliary door hinge shaft 11 to ensure the smoothness of the movement of the locking guide piston 30 .

As shown in FIG. 4 and FIG. 5 , in some embodiments, the door assembly further includes an unlocking spring. The unlocking spring is disposed in the locking guide cavity 36 and is located below the locking piston portion 31. The two ends of the unlocking spring are elastically connected to the bottom wall of the locking guide cavity 36 and the locking piston portion 31, respectively, so as to push the locking piston portion 31 along the locking guide cavity 36. Upward movement.

Specifically, the first end of the unlocking spring 34 is connected to the lower end surface of the locking piston portion 31, and the second end of the unlocking spring 34 is connected to the bottom wall surface of the locking guide cavity 36. When the unlocking spring 34 is in a natural state, the unlocking spring 34 can push the locking piston portion 31 to move upward, thereby driving the first clamping block 21 and the second clamping block 22 to rotate away from the auxiliary door hinge shaft 11 to release the auxiliary door hinge shaft 11.

In some embodiments, the positions of the locking barrel seat 33 corresponding to the first eccentric shaft 711 and the second eccentric shaft 721 are respectively provided with gear shaft openings, and the first eccentric shaft 711 and the second eccentric shaft 721 can respectively pass through the gear shaft openings and be rotatably connected to the first clamp block 21 and the second clamp block 22. The shape of the gear shaft opening is set corresponding to the rotation trajectory of the first eccentric shaft 711 and the second eccentric shaft 721.

Specifically, a first gear shaft opening is provided at a position of the locking barrel seat 33 corresponding to the first eccentric shaft 711, and the first eccentric shaft 711 can extend through the first gear shaft opening into the locking guide groove 35 and be rotatably connected to the first clamping block 21. Similarly, a second gear shaft opening is provided at a position of the locking barrel seat 33 corresponding to the second eccentric shaft 721, and the second eccentric shaft 721 can extend through the second gear shaft opening into the locking guide groove 35 and be rotatably connected to the second clamping block 22. The shape of the first gear shaft opening is set corresponding to the rotation trajectory of the first eccentric shaft 711 to avoid the first gear shaft opening interfering with the rotation of the first eccentric shaft 711; the shape of the second gear shaft opening is set corresponding to the rotation trajectory of the second eccentric shaft 721 to avoid the second gear shaft opening interfering with the rotation of the second eccentric shaft 721.

Optionally, the locking guide piston 30 further includes a locking connecting rod 32, and an opening is provided on the lower end surface of the locking barrel seat 33. The first end of the locking connecting rod 32 is fixedly provided on the lower end surface of the locking piston portion 31, and the second end of the locking connecting rod 32 extends downward and extends out of the locking barrel seat 33 through the opening. The transmission assembly 50 is connected to the second end of the locking connecting rod 32, so that the driving assembly is transmission-connected to the locking guide piston 30.

As shown in FIG3 , in some embodiments, the transmission assembly 50 includes a first pulley 51, a second pulley 52 and a transmission rope 53. The first pulley is rotatably disposed on the auxiliary door. The second pulley is rotatably disposed at a position of the auxiliary door corresponding to the driving assembly. The transmission rope is wound around the first pulley and the second pulley and is used to transmit and connect the clamping block assembly 20 to the driving guide piston 40.

Specifically, the first pulley 51 is rotatably disposed below the locking guide piston 30, the second pulley 52 is rotatably disposed above the driving guide piston 40, and the first pulley 51 is disposed on the left side of the first pulley 51. The transmission rope 53 is wound around the first pulley 51 and the second pulley 52, and the two ends of the transmission rope 53 are respectively connected to the locking connecting rod 32 of the locking guide piston 30 and the second connecting rod 422 of the driving guide piston 40. In this way, when the driving guide piston 40 moves upward, the locking guide piston 30 can be driven to move upward synchronously through the transmission rope 53; when the driving guide piston 40 moves downward, the locking guide piston 30 can be driven to move downward synchronously through the transmission rope 53.

In actual application, the user can pull the handle 04 to move the handle 04 along the handle guide cavity away from the auxiliary door 03. The linkage guide piston 600 then drives the driving guide piston 40 to move downward, so that the driving guide piston 40 drives the locking guide piston 30 to move downward synchronously through the transmission rope 53. At this time, the locking guide piston 30 can drive the first clamping block 21 and the second clamping block 22 to rotate in the direction close to the auxiliary door hinge shaft 11 and clamp the auxiliary door hinge shaft 11, so that the auxiliary door 03 and the auxiliary door hinge shaft 11 are locked with each other. If the user releases the handle 04, the linkage spring, the driving spring 44 and the unlocking spring 34 can respectively push the linkage guide piston 600, the driving guide piston 40 and the locking guide piston 30 to move in the opposite direction, so that the locking guide piston 30 drives the first clamping block 21 and the second clamping block 22 to rotate in the direction away from the auxiliary door hinge shaft 11 and release the auxiliary door hinge shaft 11, so that the auxiliary door 03 and the auxiliary door hinge shaft 11 are unlocked with each other.

Optionally, the stroke of the driving guide piston 40 is the driving stroke H1, and the stroke of the locking guide piston 30 is the locking stroke H2, wherein H1=H2.

Optionally, the stroke of the handle 04 is a pulling stroke L, and the angle between the linkage guide groove 64 and the horizontal plane is a linkage angle α, wherein L=H1/tanα.

Optionally, the auxiliary door hinge shaft 11 is provided with a stop surface at a position corresponding to the clamp block assembly 20. When the first clamp block 21 and the second clamp block 22 clamp the auxiliary door hinge shaft 11, the first clamp block 21 and the second clamp block 22 are clamped at the stop surface. Among them, the auxiliary door hinge shaft 11 and the positions corresponding to the first clamp block 21 and the second clamp block 22 are provided with a plane to form a stop surface. In this way, the stability of the first clamp block 21 and the second clamp block 22 clamping the auxiliary door hinge shaft 11 can be improved.

As shown in Fig. 1 , the embodiment of the present disclosure further provides a refrigeration device including a box body 01 and the above-mentioned door assembly, wherein a main door 02 is rotatably arranged on the box body 01 .

Specifically, a refrigeration device using the door body assembly provided in the present application can lock the auxiliary door 03 to the main door 02 without providing a separate door lock on the door body, thereby reducing the thickness of the door body and improving the user experience.

Optionally, the refrigeration device is a refrigerator.

The reference to any related art in the specification is not and should not be regarded as an admission or any form of implication that the related art forms part of the common general knowledge in the application area or any other jurisdiction, or that the related art can be reasonably understood and regarded as relevant by a person skilled in the art.

The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (20)

A door assembly, comprising: Main gate; The auxiliary door is rotatably arranged on the main door through an auxiliary door hinge, wherein the auxiliary door hinge comprises an auxiliary door hinge shaft arranged on the auxiliary door; The clamp block assembly comprises a first clamp block and a second clamp block, and the first clamp block and the second clamp block are arranged on two sides of the auxiliary door hinge shaft opposite to each other. The door assembly according to claim 1, wherein the door assembly further comprises: Handle, movably arranged on the auxiliary door; A driving guide piston is movably arranged at a position corresponding to the auxiliary door and the handle, and the driving guide piston is drivingly connected to the clamping block assembly; Among them, the handle is connected to the driving guide piston through a linkage assembly; the handle can drive the driving guide piston to move in the vertical direction through the linkage assembly, and then drive the first clamping block and the second clamping block to clamp or release the auxiliary door hinge shaft. The door assembly according to claim 2, wherein the linkage assembly comprises: A linkage guide piston is movably arranged at a position corresponding to the auxiliary door and the handle, and comprises a linkage piston portion transmission-connected to the driving guide piston and a linkage connecting rod connected to the handle; The handle can drive the guide piston to move vertically through the linkage guide piston. The door assembly according to claim 3, wherein: The linkage piston part is tilted and provided with a linkage guide groove; and, A first connecting rod is provided on one side of the driving guide piston extending toward the linkage guide groove; Wherein, the first connecting rod is slidably connected to the linkage guide groove. The door assembly according to claim 4, wherein: The linkage guide groove comprises a first end close to the handle and a second end away from the handle, and the height of the first end of the linkage guide groove is higher than the height of the second end. The door assembly according to claim 3, wherein the linkage assembly further comprises: A linkage bucket seat is provided with a linkage guide cavity; The linkage piston part is arranged in the linkage guide cavity, and the linkage piston part can move in a horizontal direction along the linkage guide cavity. The door assembly according to any one of claims 2 to 6, wherein the drive guide piston comprises a drive piston portion; and the door assembly further comprises: A driving bucket seat is provided with a driving guide cavity; The driving piston portion is arranged in the driving guide cavity, and the driving piston portion can be moved vertically along the driving guide cavity. Movement in direction. The door assembly according to any one of claims 2 to 7, wherein: A handle seat is provided at a position of the auxiliary door corresponding to the handle, and the handle seat is provided with a handle guide cavity; and, The handle is provided with a sliding portion inserted into the handle guide cavity; The handle can slide along the handle guide cavity toward or away from the door body through the sliding portion. The door assembly according to any one of claims 2 to 6, wherein the door assembly further comprises: A transmission assembly, used for transmission connecting the clamping block assembly to the driving guide piston; The driving guide piston can move in the vertical direction and drive the clamping block assembly to clamp or release the auxiliary door hinge shaft through the transmission assembly. The door assembly according to claim 9, wherein the transmission assembly comprises: A first pulley is rotatably disposed on the auxiliary door; A second pulley is rotatably disposed at a position corresponding to the auxiliary door and the driving assembly; and, The transmission rope is wound around the first pulley and the second pulley and is used to transmit and connect the clamping block assembly to the driving guide piston. The door assembly according to any one of claims 1 to 8, wherein the door assembly further comprises: A locking guide piston, comprising a locking piston portion arranged corresponding to the auxiliary door hinge shaft; A gear set, rotatably connecting the first clamping block and the second clamping block to the auxiliary door; Among them, the locking guide piston can move in the vertical direction and drive the first clamp block and the second clamp block to rotate towards or away from the auxiliary door hinge shaft, so that the first clamp block and the second clamp block clamp or release the auxiliary door hinge shaft. The door assembly according to claim 11, wherein: The locking piston part is provided with a locking guide groove, and the first clamping block and the second clamping block are slidably arranged in the locking guide groove; Wherein, when the locking guide piston moves, the locking guide groove can drive the first clamping block and the second clamping block to rotate. The door assembly of claim 11, wherein the gear set comprises: A first gear includes a first central shaft rotatably connected to the auxiliary door and a first eccentric shaft rotatably connected to the first clamping block; and, The second gear includes a second central shaft rotatably connected to the auxiliary door and a second eccentric shaft rotatably connected to the second clamping block; The first gear and the second gear are meshingly connected. The door assembly according to claim 13, further comprising: A locking bucket seat is provided with a locking guide cavity; The locking piston part is arranged in the locking guide cavity, and the locking piston part can move in the vertical direction along the locking guide cavity. The door assembly according to claim 14, wherein: A hinge shaft opening communicating with the locking guide groove is provided at a position of the locking piston portion corresponding to the auxiliary door hinge shaft; Among them, the auxiliary door hinge shaft can be inserted into the locking guide groove through the hinge shaft opening. The door assembly according to claim 14, further comprising: An unlocking spring is disposed in the locking guide cavity and is located below the locking piston portion; Wherein, two ends of the unlocking spring are elastically connected to the bottom wall surface of the locking guide cavity and the locking piston part respectively, so as to push the locking piston part to move upward along the locking guide cavity. The door assembly according to claim 14, wherein: The locking barrel seat is provided with gear shaft openings at positions corresponding to the first eccentric shaft and the second eccentric shaft, respectively. The first eccentric shaft and the second eccentric shaft can pass through the gear shaft openings and be rotatably connected to the first clamp block and the second clamp block respectively. The shape of the gear shaft opening is set corresponding to the rotation tracks of the first eccentric shaft and the second eccentric shaft. The door assembly according to any one of claims 11 to 17, further comprising: The transmission assembly is used to transmit and connect the locking guide piston to the driving assembly. The door assembly according to claim 18, wherein the transmission assembly comprises: A first pulley is rotatably arranged at a position corresponding to the auxiliary door and the locking guide piston; A second pulley is rotatably disposed at a position corresponding to the auxiliary door and the driving assembly; and, The transmission rope is wound around the first pulley and the second pulley, and two ends of the transmission rope are respectively connected to the driving component and the locking guide piston. A refrigeration device, comprising: cabinet; and, The door assembly according to any one of claims 1 to 19; Wherein, the main door is rotatably arranged on the box body.