Sliding connection device, door body assembly and household appliance device

Abstract

The utility model discloses a sliding connection device, a door body assembly and a household appliance device, the sliding connection device is used for connecting a first door body to a second door body in a sliding manner, and the sliding connection device comprises a first sliding piece, a second sliding piece used for being in sliding fit with the first sliding piece, and a limiting piece used for limiting the first sliding piece; the first sliding piece comprises a limiting part matched with the limiting piece. And the limiting part of the first sliding piece is matched with the limiting piece, so that the stability of sliding fit between the first sliding piece and the second sliding piece is ensured.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration, in particular to a sliding connection device, a door body assembly and a household electrical appliance device. Background Art

[0002] The connection between the refrigerator door body and the cabinet body of the built-in household electrical appliance can be realized through a folding hinge or a rotating shaft hinge. When the door body is equipped with a rotating shaft hinge, the refrigerator door body and the cabinet door panel need to be set as a sliding connection. In this way, when the household electrical appliance is installed in the cabinet, the door body and the door panel are allowed to rotate relative to each other simultaneously to open or close the cabinet body.

[0003] When the traditional sliding connection device opens the refrigerator door to a certain angle, the sliding component fixed on the cabinet door panel will be exposed, which is not beautiful and the user experience is poor. In addition, at present, most sliding connection devices need to use measuring tools to measure the installation points during installation, which increases the workload of after-sales personnel and results in large errors. Summary of the Utility Model

[0004] One of the purposes of the utility model is to provide a sliding connection device to solve the technical problems that the sliding connection device in the prior art is exposed and not beautiful and inconvenient to install.

[0005] One of the purposes of the utility model is to provide a door body assembly.

[0006] One of the purposes of the utility model is to provide a household electrical appliance device.

[0007] To achieve one of the above purposes of the utility model, an embodiment of the utility model provides a sliding connection device for slidably connecting a first door body to a second door body, including a first sliding member, a second sliding member for slidably cooperating with the first sliding member, and a limiting member for limiting the first sliding member; the first sliding member includes a limiting portion for cooperating with the limiting member.

[0008] As a further improvement of an embodiment of the utility model, the first sliding member includes a fixing portion for cooperating with the first door body and a first sliding portion for cooperating with the second sliding member, and the limiting portion is located at the end of the first sliding portion away from the fixing portion.

[0009] As a further improvement of an embodiment of the utility model, the limiting member includes an embedded body and a limiting main body disposed in the embedded body, the embedded body is used for fixing on the outer surface of the first door body, and the limiting main body is used for cooperating with the limiting portion.

[0010] As a further improvement of an embodiment of the present utility model, the direction of the sliding fit between the first sliding member and the second sliding member is the sliding direction. The limiting member includes a receiving groove for the limiting portion to slide into and first guiding structures on both sides of the receiving groove. The limiting portion includes second guiding structures that cooperate with the first guiding structures along the sliding direction.

[0011] As a further improvement of an embodiment of the present utility model, the limiting member includes first snap structures on both sides of the receiving groove. The limiting portion includes second snap structures that cooperate with the first snap structures. The first snap structures and the second snap structures cooperate in the height direction. The sliding direction is the horizontal direction, and the height direction is the vertical direction.

[0012] As a further improvement of an embodiment of the present utility model, the first sliding member includes a first sliding portion, the first sliding portion is sheet-shaped, and the limiting portion is sheet-shaped. The second guiding structure includes narrow surfaces on both sides of the limiting portion. The second snap structure includes snap grooves provided on the narrow surfaces.

[0013] As a further improvement of an embodiment of the present utility model, the second sliding member includes a second sliding portion that cooperates with the first sliding portion. The second sliding portion is a sliding groove. The second sliding member includes a guiding protrusion that protrudes into the sliding groove. The guiding protrusion has an inclined guiding surface that cooperates with the limiting portion.

[0014] As a further improvement of an embodiment of the present utility model, the first sliding member includes a first sliding portion, the first sliding portion is a sliding groove. The limiting portion includes a guiding insert bar at the end of the sliding groove. The second guiding structure includes a first guiding tongue at the end of the guiding insert bar. The second snap structure includes hooks or protrusions provided on the narrow surface of the guiding insert bar.

[0015] As a further improvement of an embodiment of the present utility model, the second sliding member includes a second sliding portion that cooperates with the first sliding portion. The second sliding portion is sheet-shaped, and one end of the second sliding portion is provided with a second guiding tongue for guiding into the sliding groove.

[0016] To achieve one of the above-mentioned utility model purposes, an embodiment of the present utility model provides a door body assembly, including a first door body, a second door body covering the first door body, and the sliding connection device according to any one of the above technical solutions. The first sliding member and the second sliding member are arranged between the first door body and the second door body.

[0017] To achieve one of the above-mentioned utility model purposes, an embodiment of the present utility model provides a household electrical appliance device, including a household electrical appliance, a cabinet for accommodating the household electrical appliance, and the sliding connection device according to any one of the above technical solutions. The household electrical appliance includes a first door body, the cabinet includes a second door body, the second door body covers the first door body, and the first sliding member and the second sliding member are arranged between the first door body and the second door body.

[0018] Compared with the prior art, the present utility model provides a sliding connection device, and the limiting member is used to limit the first sliding member. In this way, when the first sliding member and the second sliding member slide relative to each other, the first sliding member is prevented from shifting, ensuring the stability of the cooperation between the first sliding member and the second sliding member in the sliding direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the household electrical appliance device in an embodiment of the present utility model.

[0020] Figure 2 is a side view of the household electrical appliance device in the first embodiment of the present utility model with the second door body hidden.

[0021] Figure 3 is a schematic diagram of the embedded part in the first embodiment of the present utility model.

[0022] Figure 4 is a schematic diagram of the first sliding member and the second sliding member in the first embodiment of the present utility model.

[0023] Figure 5 is a schematic diagram of the first sliding member and the second sliding member from another angle in the first embodiment of the present utility model.

[0024] Figure 6 is a side view of the household electrical appliance device in the second embodiment of the present utility model with the second door body hidden.

[0025] Figure 7 is a schematic diagram of the embedded part in the second embodiment of the present utility model.

[0026] Figure 8 is a schematic diagram of the first sliding member and the second sliding member in the second embodiment of the present utility model.

[0027] Figure 9 is a schematic diagram of the first sliding member and the second sliding member from another angle in the second embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will describe the present utility model in detail in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present utility model.

[0029] Spatial relative position terms used herein, such as "upper", "above", "lower", "below", etc., are for the purpose of facilitating description to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The spatial relative position terms are intended to include different orientations of the device in use or operation other than the orientation shown in the figures. For example, if the device in the figure is flipped, the unit described as being "below" or "beneath" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the upper and lower orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein can be interpreted accordingly.

[0030] Referring to Figure 1 , the present utility model provides a household electrical appliance device 1000. The household electrical appliance device 1000 includes an embedded household electrical appliance 200, such as a refrigerator, and a cabinet 300 for accommodating the embedded household electrical appliance 200. The household electrical appliance 200 includes a first door body 210 and a cabinet body. The first door body 210 is used to open or close the cabinet body. The cabinet 300 includes a second door body 310, and the second door body 310 covers the first door body 210.

[0031] The household electrical appliance device 1000 includes a sliding connection device 100 for slidably connecting the first door body 210 to the second door body 310.

[0032] The present utility model provides a door body assembly, including the first door body 210, the second door body 310, and the sliding connection device 100.

[0033] The sliding connection device 100 includes slidably connected first sliding members 10, 10' and second sliding members 20, 20'. The first sliding members 10, 10' and the second sliding members 10, 10' are disposed between the first door body 210 and the second door body 310. When the second door body 310 is opened, the sliding connection device 100 can drive the first door body 210 to open, thereby opening the cabinet body of the household electrical appliance 200.

[0034] In the first embodiment, in combination with Figures 2 - 5As shown, the sliding connection device 100 includes a first sliding member 10, a second sliding member 20 that slidably cooperates with the first sliding member 10, and a limiting member 30 for limiting the first sliding member 10; the first sliding member 10 includes a limiting portion 11 that cooperates with the limiting member 30.

[0035] After the first door body 210 and the second door body 310 are slidably combined, the first door body 210 and the second door body 310 are relatively parallel. At this time, the length direction of the first door body 210 is parallel to the length direction of the second door body 310, and is parallel to the relative sliding direction between the first sliding member 10 and the second sliding member 20.

[0036] The first door body 210 and the second door body 310 generate relative sliding under the drive of the sliding connection device 100. The first door body 210 and the second door body 310 have weights, which may cause the first sliding member 10 to deform, or a height difference is formed at both ends of the first sliding member 10 along the sliding direction, which will cause the sliding direction of the first door body 210 and the second door body 310 to deviate, affecting the smooth opening of the first door body 210.

[0037] In the first embodiment, the length direction of the first sliding member 10 is parallel to the sliding direction. The limiting portion 11 is provided at the tail end of the first sliding member 10 along the length direction. The limiting portion 11 and the limiting member 30 are in limiting cooperation to ensure that the first sliding member 10 can slide stably along the sliding direction without deviation in the sliding direction.

[0038] In the first embodiment, the first sliding member 10 includes a fixing portion 12 for cooperating with the first door body 210 and a first sliding portion 13 for cooperating with the second sliding member 20. The limiting portion 11 is located at the end of the first sliding portion 13 away from the fixing portion 12.

[0039] The first sliding member 10 is a sheet-like body. The fixing portion 12 is perpendicular to the first sliding portion 13. The fixing portion 12 can cooperate with the top surface of the first door body 210 or the outer side surface of the first door body 210. The first sliding portion 13 is parallel to the outer surface of the first door body 210.

[0040] The limiting portion 11 and the fixing portion 12 are located at both ends of the first sliding portion 13 along the sliding direction. The fixing portion 12 is perpendicular to the first sliding portion 13 and is fixed to the first door body 210. The limiting portion 11 extends parallel from the first sliding portion 13 and is limited by the limiting member 30; thus, both ends of the first sliding member 10 are restricted, and there will be no sliding deviation between the first sliding portion 13 and the second sliding member 20 along the sliding direction.

[0041] In the first embodiment, the limiting member 30 includes an embedded body 31 and a limiting main body 32 disposed within the embedded body 31. The embedded body 31 is used to be fixed on the outer surface of the first door body 210, and the limiting main body 32 is used to cooperate with the limiting portion 11.

[0042] During the installation process, a groove may be reserved on the outer surface of the first door body 210. Before the first door body 210 is foamed, the embedded body 31 is placed in the reserved groove. After the first door body 210 is foamed, the embedded body 31 is also fixed on the outer surface of the first door body 210 through foaming. The limiting main body 32 is then fixed within the embedded body 31.

[0043] Specifically, the embedded body 31 includes a receiving space 311 for receiving the limiting main body and a first limiting structure 312 disposed within the receiving space 311. The limiting main body 32 is provided with a second limiting structure, and the second limiting structure cooperates with the limiting structure 312 to fix the limiting main body 32 within the embedded body 31.

[0044] In one embodiment, the first limiting structure 312 may be a first limiting wall. A limiting space is formed between the first limiting wall and the bottom surface of the receiving space. The second limiting structure is a second limiting wall, and the second limiting wall is limited within the limiting space.

[0045] In one embodiment, the first limiting structure 312 may be a limiting post, and the second limiting structure is a limiting groove.

[0046] In one embodiment, the first limiting structure 312 may be a hook, and the second limiting structure is a slot.

[0047] In one embodiment, the first limiting structure 312 may be a fastener such as a screw, and the second limiting structure is a fastening groove that cooperates with the screw-like fastener.

[0048] The number of the first limiting structure 312 and the second limiting structure is not limited either, and it may be a variety of combinations of any of the above first limiting structures 312 and second limiting structures.

[0049] The above method of installing and fixing the embedded body 31 and the limiting main body 32 is convenient for subsequent disassembly operations by the staff. In other embodiments, the embedded body 31 and the limiting main body 32 may also be integrally formed and fixed on the outer surface of the first door body 210 through foaming of the first door body 210 to enhance the fixing strength.

[0050] The direction of the sliding fit between the first sliding member 10 and the second sliding member 20 is the sliding direction. The limiting member 30 includes a receiving groove 321 for the limiting portion 11 to slide into, and first guiding structures 322 on both sides of the receiving groove 321. The limiting portion 11 includes a second guiding structure 111 that cooperates with the first guiding structures 322 along the sliding direction.

[0051] The receiving groove 321 and the first guiding structures 322 are provided on the limiting main body 32. The receiving groove 321 is open at one end facing outward along the sliding direction for the limiting portion 11 to enter. The second guiding structure 111 enters the receiving groove 321 and gradually cooperates with the first guiding structures 322. The first guiding structures 322 and the second guiding structure 111 cooperate along the sliding direction, so that the limiting portion 11 of the first sliding member 10 can cooperate with the limiting member 30 more accurately along the sliding direction.

[0052] The limiting member 30 includes first snap structures 323 on both sides of the receiving groove 321. The limiting portion 11 includes second snap structures 112 that cooperate with the first snap structures 323. The first snap structures 323 and the second snap structures 112 cooperate along the height direction. The sliding direction is the horizontal direction, and the height direction is the vertical direction.

[0053] The first snap structures 323 and the second snap structures 112 are snap - combined along the height direction. In this way, the limiting portion 11 and the limiting member 30 are fixed along the sliding direction and cannot generate relative displacement.

[0054] In the first embodiment, the first sliding portion 13 is sheet - shaped, the limiting portion 11 is sheet - shaped, and the first sliding portion 13 and the limiting portion 11 are an integral sheet - shaped body. The second guiding structure 111 includes narrow surfaces on both sides of the limiting portion 11. The second snap structure 112 includes snap grooves provided on the narrow surfaces.

[0055] In the installed state of the sliding connection device 100, the narrow surfaces are horizontal planes, the first guiding structures 322 are horizontal walls, and the horizontal planes are installed along the horizontal walls along the sliding direction.

[0056] In the installed state of the sliding connection device 100, the first snap structure 323 includes hooks provided along the height direction and facing into the receiving groove 321. The second snap structure 112 is a snap groove provided on the narrow surface of the limiting portion 11, and the hooks are clamped in the snap grooves.

[0057] The first fixing part 12 includes a first fastening groove 121 for installing and fixing a first fastener. The second sliding member 20 includes a second sliding part 21 for slidingly mating with the first sliding part 13 and a fixing structure 22 for installing on the second door body 310.

[0058] The second sliding part 21 is a sliding groove structure, and the fixing structure 22 includes a second fastening groove for installing a second fastener.

[0059] In this way, the fixing part 12 of the first sliding member 10 is fixed to the first door body 210, the limiting part 11 is limited by the limiting member 30, the fixing structure 22 of the second sliding member 20 is fixed to the second door body 310, and the first sliding part 13 and the second sliding part 21 are slidingly mated to drive the first door body 210 and the second door body 310 to stably slide in cooperation along the sliding direction.

[0060] The first sliding part 13 and the second sliding part 21 are hidden between the first door body 210 and the second door body 310, and only the fixing part 12 is exposed outside the first door body 210, which has better aesthetics when used by users.

[0061] The second sliding member 20 includes a guiding protrusion 23 protruding into the sliding groove. The guiding protrusion 23 has an inclined guiding surface for cooperating with the limiting part 11, so that when the first sliding member 10 is installed, the limiting part 11 can accurately enter the receiving space 311 of the limiting member 30.

[0062] In the second embodiment, as shown in Figures 6 - 9 The sliding connection device 100 includes a first sliding member 10', a second sliding member 20' for slidingly mating with the first sliding member 10', and a limiting member 30' for limiting the first sliding member 10'; the first sliding member 10' includes a limiting part 11' for cooperating with the limiting member 30'.

[0063] After the first door body 210 and the second door body 310 are slidably combined, the first door body 210 and the second door body 310 are relatively parallel. At this time, the length direction of the first door body 210 is parallel to the length direction of the second door body 310 and parallel to the relative sliding direction between the first sliding member 10' and the second sliding member 20'.

[0064] The first door body 210 and the second door body 310 slide relatively under the drive of the sliding connection device 100. The first door body 210 and the second door body 310 have weights, which may cause deformation of the first sliding member 10' or a height difference is formed at both ends of the first sliding member 10' in the sliding direction, which will cause a deviation in the sliding direction of the first door body 210 and the second door body 310, affecting the smooth opening of the first door body 210.

[0065] In the second embodiment, the length direction of the first sliding member 10' is parallel to the sliding direction. A limiting portion 11' is provided at the end of the first sliding member 10' along the length direction. The limiting portion 11' is in limiting cooperation with the limiting member 30' to ensure that the first sliding member 10' can slide stably along the sliding direction without deviation in the sliding direction.

[0066] In the second embodiment, the first sliding member 10' includes a fixing portion 12' for cooperating with the first door body 210 and a first sliding portion 13' for cooperating with the second sliding member 20'. The limiting portion 11' is located at the end of the first sliding portion 13' away from the fixing portion 12'.

[0067] The fixing portion 12' is perpendicular to the first sliding portion 13'. The fixing portion 12' can cooperate with the top surface of the first door body 210 or the outer side surface of the first door body 210. The first sliding portion 13' is parallel to the outer surface of the first door body 210.

[0068] The limiting portion 11' and the fixing portion 12' are located at both ends of the first sliding portion 13' along the sliding direction. The fixing portion 12' is perpendicular to the first sliding portion 13' and fixed to the first door body 210. The limiting portion 11' extends parallel from the first sliding portion 13' and is limited by the limiting member 30'. In this way, both ends of the first sliding member 10' are restricted, and the first sliding portion 13' and the second sliding member 20' will not have sliding deviation along the sliding direction.

[0069] In the second embodiment, the limiting member 30' includes an embedded body 31' and a limiting main body 32' disposed in the embedded body 31'. The embedded body 31' is used for fixing to the outer surface of the first door body 210, and the limiting main body 32' is used for cooperating with the limiting portion 11'.

[0070] During the installation process, a groove can be reserved on the outer surface of the first door body 210. Before the first door body 210 is foamed, the embedded body 31' is placed in the reserved groove. After the first door body 210 is foamed, the embedded body 31' is also fixed to the outer surface of the first door body 210 by foaming. The limiting main body 32' is then fixed in the embedded body 31'.

[0071] Specifically, the embedded body 31' includes a receiving space 311' for receiving the limiting main body and a first limiting structure 312' disposed in the receiving space 311'. The limiting main body 32' is provided with a second limiting structure'. The second limiting structure' cooperates with the limiting structure 312' to fix the limiting main body 32' in the embedded body 31'.

[0072] In one embodiment, the first limiting structure 312' can be a first limiting wall. A limiting space is formed between the first limiting wall and the bottom surface of the accommodating space. The second limiting structure is a second limiting wall, and the second limiting wall is limited within the limiting space.

[0073] The number of the first limiting structure 312' and the second limiting structure' is not limited either, and other limiting structures can also be used.

[0074] The installation and fixation method of the above-mentioned embedded body 31' and the limiting main body 32' is convenient for subsequent disassembly operations by the staff. In other embodiments, the embedded body 31' and the limiting main body 32' can also be integrally formed and fixed to the outer surface of the first door body 210 by foaming the first door body 210 to enhance the fixing strength.

[0075] The sliding direction between the first sliding member 10' and the second sliding member 20' is the sliding direction. The limiting member 30' includes a receiving groove 321' for the limiting portion 11' to slide into and a first guiding structure located in the receiving groove 321'. The limiting portion 11' includes a second guiding structure 111' that cooperates with the first guiding structure along the sliding direction.

[0076] The receiving groove 321' and the first guiding structure are arranged on the limiting main body 32. The two ends of the receiving groove 321' along the sliding direction are open for the limiting portion 11' to enter. The second guiding structure 111' gradually cooperates with the first guiding structure along the sliding direction, so that the limiting portion 11 of the first sliding member 10' can more accurately cooperate with the limiting member 30' along the sliding direction.

[0077] The limiting member 30' includes first buckle structures 323' on both sides of the receiving groove 321'. The limiting portion 11' includes second buckle structures 112' that cooperate with the first buckle structures 323'. The first buckle structures 323' and the second buckle structures 112' cooperate along the height direction. The sliding direction is the horizontal direction, and the height direction is the vertical direction.

[0078] The first buckle structures 323' and the second buckle structures 112' are buckled together along the height direction. In this way, the limiting portion 11' and the limiting member 30' are fixed along the sliding direction and cannot produce relative displacement.

[0079] In the second embodiment, the first sliding portion 13' is a sliding groove. The limiting portion 11' includes a guiding insert bar at the end of the sliding groove. The second guiding structure 111' includes a first guiding tongue at the end of the guiding insert bar. The second buckle structure 112' includes a groove provided on the narrow surface of the guiding insert bar.

[0080] The second sliding member 20 includes a second sliding portion 21' that cooperates with the first sliding portion 13'. The second sliding portion is in a sheet shape 22'. One end of the second sliding portion 13' is provided with a second guiding tongue 23' for guiding entry into the sliding groove.

[0081] Compared with the first embodiment, in this second embodiment, the cooperation mode between the first sliding portion 13' and the second sliding portion 21' has changed, and the limiting portion 11' and the limiting member 30 have been adjusted.

[0082] In the second embodiment, the limiting portion 11' is a guiding insert bar. The middle receiving area 324' of the limiting member 30' is used to receive the second sliding member 20'. The receiving grooves 320' are located on both sides of the receiving area 324' in the height direction. The second guiding structure 111' is a first guiding tongue, and the first guiding structure is the inner wall surface of the receiving groove 320'.

[0083] The first latching structure 323' still includes a hook disposed along the height direction and facing into the receiving groove 320. The second latching structure 112' is a latching groove provided on the horizontal narrow surface of the limiting portion 11'. The hook is latched in the latching groove.

[0084] During installation, the second guiding tongue 23' is used to guide the second sliding portion 21' into the first sliding portion 13', and the first guiding tongue is used to guide the limiting portion 11' into the limiting member 30'. Among them, the guiding directions of the first guiding tongue and the second guiding tongue 23' are opposite.

[0085] In the second embodiment, the first fixing portion 12' includes a first fastening groove 121' for installing and fixing a first fastener. The second sliding member 20' includes a fixing structure 22' for installing on the second door body 310. The fixing structure 22' includes a second fastening groove for installing a second fastener.

[0086] The fixing portion 12' of the first sliding member 10' is fixed to the first door body 210. The limiting portion 11' is limited in the limiting member 30'. The fixing structure 22' of the second sliding member 20' is fixed to the second door body 310. And the first sliding portion 13' and the second sliding portion 21' are in sliding cooperation, driving the first door body 210 and the second door body 310 to stably slide in cooperation along the sliding direction.

[0087] The first sliding portion 13' and the second sliding portion 21' are hidden between the first door body 210 and the second door body 310. Only the fixing portion 12' will be exposed outside the first door body 210, providing better aesthetics for users during use.

[0088] The beneficial effects of the present utility model are as follows: At one end of the first sliding members 10, 10' away from the fixed parts 12, 12', limiting parts 11, 11' are provided to cooperate with the limiting members 30, 30', making the sliding cooperation between the first sliding members 10, 10' and the second sliding members 20, 20' more stable; the first sliding parts 13, 13' and the second sliding members 21, 21' are hidden between the first door body 210 and the second door body 310, having better aesthetics.

[0089] It should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0090] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present utility model, and they are not used to limit the protection scope of the present utility model. Any equivalent embodiments or changes made without departing from the technical spirit of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A sliding connection device for slidingly connecting a first door body to a second door body, characterized in that: The sliding connection device includes a first sliding member, a second sliding member for slidingly cooperating with the first sliding member, and a limiting member for limiting the first sliding member; the first sliding member includes a limiting portion cooperating with the limiting member.

2. The sliding connection device according to claim 1, characterized in that: The first sliding member includes a fixing portion for cooperating with the first door body and a first sliding portion cooperating with the second sliding member, and the limiting portion is located at the end of the first sliding portion away from the fixing portion.

3. The sliding connection device according to claim 1, characterized in that: The position-limiting member comprises an embedded body and a position-limiting main body arranged in the embedded body, the embedded body is used to be fixed on the outer surface of the first door body, and the position-limiting main body is used to cooperate with the position-limiting portion.

4. The sliding connection device according to claim 1, characterized in that: The direction of sliding cooperation between the first sliding member and the second sliding member is the sliding direction, the limiting member includes a receiving groove for the limiting part to slide into, and a first guide structure located on both sides of the receiving groove, and the limiting part includes a second guide structure that cooperates with the first guide structure along the sliding direction.

5. The sliding connection device according to claim 4, characterized in that: The limiting member includes a first snap-in structure located on both sides of the receiving groove, and the limiting portion includes a second snap-in structure that cooperates with the first snap-in structure. The first snap-in structure cooperates with the second snap-in structure along the height direction. The sliding direction is the horizontal direction, and the height direction is the vertical direction.

6. The sliding connection device according to claim 5, characterized in that: The first sliding member includes a first sliding portion, the first sliding portion is in sheet shape, and the limiting portion is in sheet shape; the second guiding structure includes narrow surfaces located on both sides of the limiting portion, and the second buckle structure includes buckle grooves arranged on the narrow surfaces.

7. The sliding connection device according to claim 6, characterized in that: The second sliding member includes a second sliding portion that cooperates with the first sliding portion, the second sliding portion is a sliding groove, and the second sliding member includes a guide protrusion that protrudes into the sliding groove, and the guide protrusion has an inclined guide surface that cooperates with the limiting portion.

8. The sliding connection device according to claim 5, characterized in that: The first sliding member includes a first sliding portion, which is a sliding groove. The limiting portion includes a guide strip located at the end of the sliding groove. The second guide structure includes a first guide tongue located at the end of the guide strip. The second buckle structure includes a buckle groove arranged on the narrow surface of the guide strip.

9. The sliding connection device according to claim 8, characterized in that: The second sliding member comprises a second sliding part matched with the first sliding part, the second sliding part is in a sheet shape, and one end of the second sliding part is provided with a second guide tongue for guiding into the sliding groove.

10. A door assembly, characterized in that: It comprises a first door body, a second door body covering the first door body, and a sliding connection device as described in any one of claims 1 to 9, wherein the first sliding member and the second sliding member are arranged between the first door body and the second door body.

11. A household electrical appliance device, characterized in that: It includes a household appliance, a cabinet for accommodating the household appliance, and a sliding connection device as described in any one of claims 1 to 9, wherein the household appliance includes a first door body, the cabinet includes a second door body, the second door body covers the first door body, and the first sliding member and the second sliding member are arranged between the first door body and the second door body.

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