Door body assembly and refrigeration equipment

Abstract

The invention relates to the technical field of household appliances, and discloses a door body assembly. The door body assembly comprises a main door, an auxiliary door, a handle, a driving guide piston and a clamping block assembly. The auxiliary door is rotationally arranged on the main door through 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 driving guide piston is movably arranged at the position, corresponding to the handle, of the auxiliary door. The clamping block assembly comprises a first clamping block and a second clamping block which are in transmission connection with the driving guide piston, and the first clamping block and the second clamping block are oppositely arranged on the two sides of the auxiliary door hinge shaft. According to the arrangement, the auxiliary door can be locked to the main door without arranging an independent door lock on the door body, the thickness of the door body is reduced, and the use experience of a user is improved. Meanwhile, the invention further discloses refrigeration equipment.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, for example, to a door assembly and a refrigeration device. Background Art

[0002] 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.

[0003] Current door-in-door refrigerators are equipped with a door lock on the secondary door to lock the secondary door to the main door so that the secondary door can move with the main door to prevent the secondary door from being opened when the user is opening the main door.

[0004] 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:

[0005] 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.

[0006] 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

[0007] 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.

[0008] 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.

[0009] The disclosed embodiment provides a door body assembly including a main door, a secondary door, a handle, a driving guide piston 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 driving guide piston is movably arranged at a position of the secondary door corresponding to the handle. The clamp block assembly includes a first clamp block and a second clamp block which are transmission-connected to the driving guide piston, and the first clamp block and the second clamp block are relatively arranged on both sides of the secondary door hinge shaft. 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, thereby driving the first clamp block and the second clamp block to clamp or release the secondary door hinge shaft.

[0010] In some embodiments, the linkage assembly includes a linkage guide piston. The linkage guide piston is movably arranged at a position corresponding to the auxiliary door and the handle, and includes 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 driving guide piston to move in a vertical manner through the linkage guide piston.

[0011] In some embodiments, the linkage piston portion is obliquely provided with a linkage guide groove, and a first connecting rod is extended from one side of the driving guide piston toward the linkage guide groove, wherein the first connecting rod is slidably connected to the linkage guide groove.

[0012] In some embodiments, the linkage guide groove includes 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.

[0013] In some embodiments, the linkage assembly further comprises a linkage bucket seat, which is provided with a linkage guide cavity, wherein the linkage piston portion is provided in the linkage guide cavity, and the linkage piston portion can move in a horizontal direction along the linkage guide cavity.

[0014] In some embodiments, the driving guide piston includes a driving piston portion. The door assembly also includes a driving bucket seat. The 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 move in a vertical direction along the driving guide cavity.

[0015] In some embodiments, a handle seat is provided at a position corresponding to the sub-door and the handle, and the handle seat is provided with a handle guide cavity. The handle is provided with a sliding portion inserted in the handle guide cavity. The handle can slide along the handle guide cavity toward or away from the door body through the sliding portion.

[0016] In some embodiments, the door body assembly further comprises a transmission assembly, which is used to transmit and connect the clamp block assembly to the driving guide piston, wherein the driving guide piston can move in a vertical direction and drive the clamp block assembly to clamp or release the auxiliary door hinge shaft through the transmission assembly.

[0017] In some embodiments, the transmission assembly includes a first pulley, a second pulley and a transmission rope. 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 to the driving guide piston.

[0018] The embodiment of the present disclosure also provides a refrigeration device including a box body and the above-mentioned door assembly, wherein the main door is rotatably arranged on the box body.

[0019] The door assembly and refrigeration equipment provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The disclosed embodiment provides a door assembly including a main door, a secondary door, a handle, a driving guide piston and a clamping 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 driving guide piston is movably arranged at a position of the secondary door corresponding to the handle. The clamping block assembly includes a first clamping block and a second clamping block that are transmission-connected to the driving guide piston, and the first clamping block and the second clamping block are relatively arranged on both sides of the secondary door hinge shaft. 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 a vertical direction through the linkage assembly, and then drive the first clamping block and the second clamping block to clamp or release the secondary door hinge shaft. In this way, the user can drive the driving guide piston to move vertically upward or vertically downward through the handle and the linkage assembly. The driving guide piston can move vertically upward and drive the first clamping block and the second clamping block to release the secondary door hinge shaft. At this time, the secondary door is in an unlocked state, and the user can pull the secondary door to rotate relative to the main door around the secondary door hinge shaft. The driving guide piston can also move vertically downward and drive the first clamp block and the second clamp block to clamp the auxiliary door hinge shaft. At this time, the auxiliary door is in a locked state to prevent the auxiliary door from rotating relative to the main door around the auxiliary door hinge shaft. In this way, the auxiliary door can be locked to the main door without providing a separate door lock on the door body, which reduces the thickness of the door body and improves the user experience.

[0021] 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

[0022] 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:

[0023] Figure 1 is a structural schematic diagram of a refrigeration equipment component provided by an embodiment of the present disclosure;

[0024] Figure 2is a structural schematic diagram of a door assembly provided by an embodiment of the present disclosure;

[0025] Figure 3 is a cross-sectional view of a door assembly provided by an embodiment of the present disclosure;

[0026] Figure 4 It is a partial structural schematic diagram of a door assembly provided by an embodiment of the present disclosure;

[0027] Figure 5 is a partial structural schematic diagram of another door assembly provided by an embodiment of the present disclosure;

[0028] Figure 6 It is a schematic diagram of a structure in which a clamping block assembly is rotatably connected to a gear set provided by an embodiment of the present disclosure;

[0029] Figure 7 is a structural schematic diagram of a first gear provided by an embodiment of the present disclosure;

[0030] Figure 8 is a cross-sectional view of another door assembly provided by an embodiment of the present disclosure;

[0031] Fig. 9 is a partial structural schematic diagram of another door assembly provided by an embodiment of the present disclosure;

[0032] Fig.10 It is a structural schematic diagram of a first connecting rod slidably connected to a linkage guide groove provided in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 01: box body; 02: main door; 03: auxiliary door; 031: handle seat; 04: handle; 041: sliding part;

[0035] 10: Auxiliary door hinge; 11: Auxiliary door hinge shaft;

[0036] 21: first clamping block; 22: second clamping block;

[0037] 31: locking piston; 32: locking connecting rod; 33: locking barrel seat; 34: unlocking spring; 35: locking guide groove; 36: locking guide cavity;

[0038] 41: driving piston portion; 421: first connecting rod; 422: second connecting rod; 423: sliding protrusion; 43: driving barrel seat; 44: driving spring; 45: driving guide chamber;

[0039] 51: first pulley; 52: second pulley; 53: transmission rope;

[0040] 61: linkage piston part; 62: linkage connecting rod; 63: linkage bucket seat; 64: linkage guide groove;

[0041] 71: first gear; 711: first eccentric shaft; 712: first central shaft; 72: second gear; 721: second eccentric shaft. DETAILED DESCRIPTION

[0042] 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.

[0043] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0044] 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.

[0045] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" 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 those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0046] Unless otherwise stated, the term "plurality" means two or more.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] like Figures 1 to 10 As shown, the embodiment of the present disclosure provides 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.

[0051] like Figures 1 to 10 As shown, the embodiment of the present disclosure provides a door body assembly including a main door 02, a secondary door 03, a handle 04, a driving guide piston and a clamping block assembly. The secondary door 03 is rotatably arranged on the main door 02 through a secondary door hinge 10, and the secondary door hinge 10 includes a secondary door hinge shaft 11 arranged on the secondary door 03. The handle 04 is movably arranged on the secondary door 03. The driving guide piston is movably arranged at a position corresponding to the secondary door 03 and the handle 04. The clamping block assembly includes a first clamping block 21 and a second clamping block 22 that are transmission-connected to the driving guide piston, and the first clamping block 21 and the second clamping block 22 are relatively arranged on both sides of the secondary door hinge shaft 11. Among them, the handle 04 is connected to the driving guide piston through a linkage assembly. The handle 04 can drive the driving guide piston to move in the vertical direction through the linkage assembly, thereby driving the first clamping block 21 and the second clamping block 22 to clamp or release the secondary door hinge shaft 11.

[0052] Specifically, the door assembly is applied to a refrigeration device, and 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 is movably arranged on the auxiliary door 03, and is arranged at a position corresponding to the auxiliary door 03 and the handle 04. The handle 04 is connected to the drive guide piston through a linkage assembly, and the user can drive the drive guide piston to move vertically upward or vertically downward through the handle 04 and the linkage assembly.

[0053] When the main door 02 closes the storage cavity, the first clamp block 21 and the second clamp block 22 are in a state of releasing the auxiliary door hinge shaft 11, such as Figure 4 As shown. If the user needs to open the main door 02, he can directly pull the handle 04. At this time, the handle 04 drives the driving guide piston to move vertically downward through the linkage assembly, and then the driving guide piston drives the first clamp block 21 and the second clamp block 22 to clamp the auxiliary door hinge shaft 11. In this way, the first clamp block 21 and the second clamp block 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. Figure 5 After the user closes the main door 02, the driving guide piston moves vertically upward and drives the first clamp block 21 and the second clamp block 22 to release the auxiliary door hinge shaft 11. At this time, the first clamp block 21 and the second clamp block 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.

[0054] 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.

[0055] like Figures 8 to 10 As shown, in some embodiments, the linkage assembly includes a linkage guide piston. The linkage guide piston is movably arranged 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 drive guide piston and a linkage connecting rod 62 that is connected to the handle 04. The handle 04 can drive the drive guide piston to move in a vertical manner through the linkage guide piston.

[0056] Specifically, the linkage guide piston is horizontally arranged at a position corresponding to the handle 04 of the auxiliary door 03, and the linkage guide piston includes a linkage piston portion 61 which is transmission-connected to the driving guide piston and a linkage connecting rod 62 which is extended toward the handle 04. Figure 8 and Fig. 9 As shown. 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 part 61 to move horizontally through the linkage connecting rod 62. At this time, the linkage piston part 61 can drive the driving guide piston to rotate in the vertical direction.

[0057] like Fig. 9 and Fig.10 As shown, 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 toward the linkage guide groove 64. The first connecting rod 421 is slidably connected to the linkage guide groove 64.

[0058] Specifically, the linkage guide groove 64 is obliquely arranged on the linkage piston portion 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 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 to move downward or upward.

[0059] like Fig. 9 As shown, optionally, the driving guide piston is arranged above the linkage guide piston, and one end of the first connecting rod 421 is fixedly arranged on the lower end surface of the driving piston part 41, and the second end of the first connecting rod 421 extends downward to the linkage guide groove 64.

[0060] like Fig. 9 and Fig.10 As shown, 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.

[0061] Specifically, when the user pulls the handle 04, the handle 04 can drive the linkage guide piston to move toward the handle 04. At this time, the wall of the linkage guide groove 64 can push the driving guide piston downward through the sliding protrusion 423 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 to move away from the handle 04. At this time, the wall of the linkage guide groove 64 can push the driving guide piston upward through the sliding protrusion 423 to drive the first clamping block 21 and the second clamping block 22 to release the auxiliary door hinge shaft 11.

[0062] like Figure 8 and Fig. 9 As shown, in some embodiments, the linkage assembly 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.

[0063] Specifically, the linkage barrel seat 63 is fixedly arranged at a position corresponding to the auxiliary door 03 and the linkage guide piston, 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.

[0064] Optionally, an opening is provided on the wall of the linkage barrel seat 63 facing the handle 04 , and the linkage connecting rod 62 can extend out of the linkage barrel seat 63 through the opening and be fixedly connected to the handle 04 .

[0065] Optionally, the linkage assembly 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 to move in a direction away from the handle 04.

[0066] like Figure 8 As shown, in some embodiments, the driving guide piston includes a driving piston portion. The door body assembly also includes a driving bucket seat 43. The driving bucket seat 43 is provided with a driving guide cavity 45. Among them, the driving piston portion 41 is arranged in the driving guide cavity 45, and the driving piston portion 41 can move in the vertical direction along the driving guide cavity 45.

[0067] Specifically, the driving barrel seat 43 is fixedly arranged at a position corresponding to the auxiliary door 03 and the driving guide piston, 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.

[0068] like Figure 8 As shown, 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.

[0069] like Figure 8 As shown, in some embodiments, a handle seat 031 is provided at a position corresponding to the sub-door 03 and the handle 04, and a handle guide cavity is provided in the handle seat 031. The handle 04 is provided with a sliding portion 041 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 041.

[0070] Specifically, the handle seat 031 is disposed on the side of the secondary door 03 away from the main door 02 , and the sliding portion 041 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 .

[0071] like Figure 8 As shown, optionally, the two ends of the handle 04 are respectively provided with sliding parts 041, and the positions of the auxiliary door 03 corresponding to the two sliding parts 041 are respectively provided with two handle seats 031. Such an arrangement can improve the stability of the handle 04 when sliding.

[0072] like Figure 8 and Fig. 9 As shown, optionally, the driving guide piston 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. The transmission assembly is in driving connection with the driving connecting rod.

[0073] like Figure 8 and Fig. 9 As shown, optionally, the driving guide piston is arranged below the transmission assembly, and one end of the second connecting rod 422 is fixedly arranged on the upper end surface of the driving piston part 41, and the second end of the second connecting rod 422 is extended upward. The transmission assembly is connected to the second end of the second connecting rod 422.

[0074] like Figure 2 As shown, in some embodiments, the door body assembly further includes a transmission assembly. The transmission assembly is used to transmit and connect the clamp block assembly to the driving guide piston. The driving guide piston can move in the vertical direction and drive the clamp block assembly to clamp or release the auxiliary door hinge shaft 11 through the transmission assembly.

[0075] Specifically, the clamping block assembly is connected to the driving guide piston through the transmission assembly, so that the driving guide piston 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.

[0076] like Figures 3 to 6 As shown, optionally, the door body assembly also includes a locking guide piston and a gear set. The locking guide piston includes a locking piston portion 31 arranged corresponding to the auxiliary door hinge shaft 11. The gear set rotatably connects the first clamp block 21 and the second clamp block 22 to the auxiliary door 03. Among them, the locking guide piston 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.

[0077] Specifically, the locking guide piston 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 a gear set, 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 is transmission-connected with the locking guide piston. The driving guide piston can drive the locking guide piston to move in the vertical direction.

[0078] like Figure 4 and Figure 5 As shown, optionally, the locking guide piston and the gear set are arranged below the auxiliary door hinge shaft 11.

[0079] like Figure 4 and Figure 5 As shown, 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. Wherein, when the locking guide piston moves, the locking guide groove 35 can drive the first clamping block 21 and the second clamping block 22 to rotate.

[0080] 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.

[0081] When the locking guide piston 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. Figure 5 When the locking guide piston 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 FIG. Figure 4 shown.

[0082] like Figure 6 As shown, in some embodiments, the gear set 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 rotatably connected to the auxiliary door 03 and a second eccentric shaft 721 rotatably connected to the second clamping block 22. The first gear 71 and the second gear 72 are meshed and connected.

[0083] 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 .

[0084] 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.

[0085] like Figure 4 and Figure 5 As shown, in some embodiments, the door assembly further includes a locking bucket seat 33. The locking bucket 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.

[0086] 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.

[0087] Optionally, an opening is provided in the locking guide cavity 36 at a position 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.

[0088] 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.

[0089] 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 in the vertical direction.

[0090] 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.

[0091] like Figure 4 and Figure 5 As shown, 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 surface of the locking guide cavity 36 and the locking piston portion 31, respectively, so as to push the locking piston portion 31 to move upward along the locking guide cavity 36.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] Optionally, the locking guide piston 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 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.

[0096] like Figure 3 As shown, in some embodiments, the transmission assembly includes a first pulley 51, a second pulley 52 and a transmission rope 53. The first pulley is rotatably arranged on the auxiliary door. The second pulley is rotatably arranged 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 to the driving guide piston.

[0097] Specifically, the first pulley 51 is rotatably arranged below the locking guide piston, the second pulley 52 is rotatably arranged above the driving guide piston, and the first pulley 51 is arranged 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 and the second connecting rod 422 of the driving guide piston. In this way, when the driving guide piston moves upward, the locking guide piston can be driven to move upward synchronously through the transmission rope 53; when the driving guide piston moves downward, the locking guide piston can be driven to move downward synchronously through the transmission rope 53.

[0098] In actual application, the user can pull the handle 04 to make the handle 04 slide along the handle guide cavity in the direction away from the auxiliary door 03, and drive the linkage guide piston to move synchronously. The linkage guide piston then drives the driving guide piston to move downward, so that the driving guide piston drives the locking guide piston to move downward synchronously through the transmission rope 53. At this time, the locking guide piston 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, the driving guide piston and the locking guide piston to move in the opposite direction, so that the locking guide piston 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.

[0099] Optionally, the stroke of the driving guide piston is the driving stroke H1, and the stroke of the locking guide piston is the locking stroke H2, wherein H1 = H2.

[0100] 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.

[0101] Optionally, the auxiliary door hinge shaft 11 is provided with a stop surface at a position corresponding to the clamp block assembly. 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.

[0102] like Figure 1 As shown, the embodiment of the present disclosure further provides a refrigeration device including a box body 01 and the above-mentioned door assembly. Among them, the main door 02 is rotatably arranged on the box body 01.

[0103] 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.

[0104] Optionally, the refrigeration device is a refrigerator.

[0105] 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

1. A door assembly, characterized in that: include: 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; 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, A clamp block assembly comprises a first clamp block and a second clamp block which are transmission-connected to the driving guide piston, and the first clamp block and the second clamp block are arranged oppositely on two sides of the auxiliary door hinge shaft; Wherein, 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 auxiliary door hinge shaft.

2. The door assembly according to claim 1, characterized in that: The linkage components include: 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.

3. The door assembly according to claim 2, characterized in that: 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.

4. The door assembly according to claim 3, characterized in that: 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.

5. The door assembly according to claim 2, characterized in that: The linkage components also include: 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.

6. The door assembly according to any one of claims 1 to 5, characterized in that: The driving guide piston includes a driving piston portion; the door body assembly also includes: A driving bucket seat is provided with a driving guide cavity; The driving piston part is arranged in the driving guide cavity, and the driving piston part can move in a vertical direction along the driving guide cavity.

7. The door assembly according to any one of claims 1 to 5, characterized in that: 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.

8. The door assembly according to any one of claims 1 to 5, characterized in that: Also includes: 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.

9. The door assembly according to claim 8, characterized in that: The transmission components include: 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.

10. A refrigeration device, characterized in that: include: Box; and, The door assembly according to any one of claims 1 to 9; Wherein, the main door is rotatably arranged on the box body.

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