Door body connecting device, door body assembly and household equipment device

Abstract

The utility model discloses a door body connecting device, a door body assembly and a household equipment device, the door body connecting device is used for connecting a first door body and a second door body arranged on the outer side of the first door body, and the door body connecting device comprises a positioning assembly, the positioning assembly comprises a first connecting piece used for being fixed to a first door body and a positioning ruler matched with the first connecting piece to position the installation position of a second door body in the height direction. The first connecting piece is provided with a limiting slide way extending in the first direction and a locking structure protruding into the limiting slide way to limit the position of the positioning ruler. The positioning scale is provided with a guide plate limited in the limiting slide way and matched with the limiting slide way and a positioning plate connected to one end of the guide plate, and the positioning plate is provided with a first positioning part and a second positioning part which reversely extend in the direction perpendicular to the guide plate; and the second positioning part is used for supporting and matching with the end part of a second door body. Accurate positioning of the door body is achieved, connection is convenient, and the door body installation efficiency is improved.

Description

Technical Field

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

[0002] In daily life, in pursuit of an integrated style, household appliances are often installed in a built-in manner. This requires connecting the appliance door to the exterior door to achieve simultaneous opening and closing. However, the positioning and installation steps for the interior and exterior doors are relatively complex, requiring the installer to determine the exact horizontal and vertical installation positions of the connecting device on the exterior door. The installation process is time-consuming and requires high installation skills. Currently, most interior and exterior door connections are made using metal hanging plates. The precise positioning of the hanging plates on the exterior door requires determining their vertical and horizontal positions. This ensures that after the exterior door is connected to the interior appliance door, there will be no interference between the interior and exterior doors, preventing the door from being opened.

[0003] There are currently two ways to position hanging panels. One is that the installation master uses measuring tools to determine the precise positioning in the up and down and left and right directions, and the other is that the hanging panel has its own mechanism for determining the up and down or left and right directions, which can determine the precise positioning of the hanging panel on the external door body. Regardless of which positioning method is used, it is necessary to use tooling to measure the hanger on the inner door body first and then remove it, and then take it to the outer door body to measure, position and tighten it, and finally hang it back on the inner door body for fixed connection. There are still problems such as complex positioning methods, the need for professional personnel to operate, and long installation time, which increases the user's installation cost and reduces the user's satisfaction. In view of this, it is necessary to provide a door body connection device, a door body assembly and a household appliance device to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide a door connecting device, a door assembly and a household appliance device, so as to solve the problem of simplifying the positioning connection and improving the door installation efficiency.

[0005] To achieve the above object, the present invention provides a door connecting device for connecting a first door with a second door arranged outside the first door, the door connecting device comprising:

[0006] A positioning assembly, the positioning assembly comprising a first connecting member fixed to the first door body, and a positioning scale cooperating with the first connecting member to locate the installation position of the second door body in the height direction;

[0007] The first connecting member comprises a first connecting portion for fixing to one end of the first door body, a second connecting portion connected to the first connecting portion, the second connecting portion being provided with a limiting slide extending along the first direction, a locking structure protruding into the limiting slide to limit the position of the positioning scale, and a fixing structure provided outside the limiting slide to be fixedly matched with the second door body;

[0008] The positioning scale has a guide plate that is limited in the limiting slide and cooperates with the limiting slide, and a positioning plate connected to one end of the guide plate. The positioning plate has a first positioning portion and a second positioning portion extending in opposite directions along the direction perpendicular to the guide plate; the second positioning portion is used to support and cooperate with the end of the second door body.

[0009] As a further improvement of the present invention, the second connecting part includes a main body part, a sliding piece connected to the main body part and protruding outward from the main body part, and the main body part and the sliding piece are spaced apart along the thickness direction of the main body part so that the limiting slide is formed between the main body part and the sliding piece.

[0010] As a further improvement of the present invention, the second connecting part is connected to one end of the first connecting part and extends in a direction perpendicular to the first connecting part; the second connecting part is provided with a first limiting groove at the connection with the first connecting part, and the guide plate passes through the first limiting groove and is affixed to the main body of the second connecting part.

[0011] As a further improvement of the present invention, the locking structure includes a non-return claw protruding into the limiting slide; the side of the guide plate facing the second connecting part is provided with a plurality of locking grooves arranged at intervals along the first direction, and the non-return claw can be engaged with any one of the plurality of locking grooves to limit the movement of the guide plate relative to the limiting slide in the first direction.

[0012] As a further improvement of the present invention, the fixing structure includes first fixing holes arranged on both sides of the limiting slide, and second fixing members for passing through the first fixing holes to fasten the second connecting part to the second door body.

[0013] As a further improvement of the present invention, the positioning plate also includes a baffle plate connected to an end of the second positioning portion away from the guide plate and extending parallel to the guide plate. The baffle plate cooperates with the guide plate to form an accommodating groove for accommodating the second door body.

[0014] As a further improvement of the present invention, the door body connecting device also includes a fixing component, which includes a second connecting member for fixedly connecting the first door body and the second door body, the second connecting member having a third connecting portion for fixing to an end of the first door body away from the first connecting portion, and a fourth connecting portion connected to the third connecting portion, the fourth connecting portion is provided with an adhesive block for cooperating with the second door body, and the adhesive block is used to position the fixed position of the second connecting member on the second door body.

[0015] As a further improvement of the present invention, the fourth connecting portion is connected to one end of the third connecting portion and extends vertically upward. The fourth connecting portion also has a plurality of second fixing holes and a second fixing member for passing through the plurality of second fixing holes to fasten the fourth connecting portion to the second door body.

[0016] As a further improvement of the present invention, the door body connecting device also includes a cover, which is provided with a plurality of card blocks, and a plurality of card slots are opened in the middle of the third connecting part. The plurality of card blocks cooperate with the plurality of card slots to cover the third connecting part.

[0017] To achieve the above objectives, the present invention also provides a door body assembly, including a first door body, a second door body arranged outside the first door body, and a door body connecting device as described above, wherein the door body connecting device is fixedly connected between the first door body and the second door body.

[0018] To achieve the above-mentioned purpose, the present invention also provides a household appliance device, including a household appliance, a cabinet for accommodating the household appliance, and a door connecting device as described above, wherein the household appliance has a first door body, the cabinet has a second door body, the second door body is covered and arranged on the outside of the first door body, and the door connecting device is fixedly connected between the first door body and the second door body.

[0019] The beneficial effects of the present invention are as follows: according to the door body connecting device proposed by the present invention, the first connecting piece fixed to the first door body cooperates with the positioning scale, and is limited in the limiting slide by the guide plate, and the position of the positioning scale is adjusted along the vertical direction, and the position of the positioning scale is limited by a locking structure protruding into the limiting slide, so that when the second positioning part cooperates with the end support of the second door body, the installation position of the door body connecting device on the second door body can be accurately positioned and directly fixedly connected, thereby eliminating the tedious steps of measuring, positioning and tightening on the second door body, facilitating operation and improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a household appliance installed in a cabinet in one embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A schematic diagram of the structure in which the first door body is connected to the door body connecting device after the second door body is removed;

[0022] Figure 3 yes Figure 2 A schematic diagram of the structure in which the first door body is connected to the positioning assembly;

[0023] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the positioning component in FIG.

[0024] Figure 5 yes Figure 3 A schematic diagram of the three-dimensional structure of the positioning component from another angle;

[0025] Figure 6 yes Figure 3 A schematic diagram of the three-dimensional structure of the first connecting member;

[0026] Figure 7 yes Figure 2 A front view of the fixed component in FIG.

[0027] Figure 8 yes Figure 7 A schematic structural diagram of the connection between the top of the first door body and the fixed component;

[0028] Figure 9 yes Figure 7 Schematic diagram of the three-dimensional structure of the cover and the second connecting member. DETAILED DESCRIPTION

[0029] The following is a detailed description of the present invention with reference to the accompanying drawings and embodiments. Figures 1 to 9 Shown is a preferred embodiment of the present invention.

[0030] It should be understood that, unless otherwise expressly specified and limited, in this application, the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", etc. are determined based on the side of the door body of the refrigeration equipment facing the user as the front, and are only for the convenience of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operate in a specific direction.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means two or more, or at least two.

[0032] In the present invention, unless otherwise clearly specified and limited, terms such as "set", "communicated", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection.

[0033] The utility model provides a door connecting device, a door assembly and a household appliance device. Figures 1 to 9 Shown is a preferred embodiment of the present invention.

[0034] like Figure 1 The household appliance 100 shown in FIG. 2 includes a household appliance 10, a cabinet 20 for accommodating the household appliance 10, and a door connection device 30. In this embodiment, the household appliance 10 is described using a built-in refrigerator as an example, with the refrigerator built into the cabinet 20. It should be noted that the household appliance 10 may also be other refrigeration equipment, disinfection equipment, or other equipment that requires a built-in installation.

[0035] The cabinet 20 is used to accommodate household appliances 10. It should be understood that the cabinet 20 mentioned in the present invention should be understood in a broad sense, that is, it can be a separate cabinet, or it can include an opening inside the wall to form an internal accommodation space, but it is not limited to this.

[0036] The household appliance 10 has a first door body 1 , and the cabinet has a second door body 2 , which is arranged to cover the outside of the first door body 1 , and the door body connecting device 30 is fixedly connected between the first door body 1 and the second door body 2 .

[0037] In the built-in refrigerator of this embodiment, the first door body 1 is the refrigerator door body, and the second door body 2 is the cabinet door body. The door body connecting device 30 is connected between the refrigerator door body and the cabinet door body, and is configured to be tightly connected to the cabinet door body and the refrigerator door body respectively. When the cabinet door body is operated to open and close outside the cabinet, the refrigerator door body will be driven to open and close synchronously through the door body connecting device 30.

[0038] like Figure 3 As shown, the door body connecting device 30 includes a positioning assembly 3, which includes a first connecting member 4 for fixing to the first door body 1 and a positioning scale 5 that cooperates with the first connecting member 4 to locate the installation position of the second door body 2 in the height direction.

[0039] The positioning assembly 3 may be a first connecting member 4 matched with a positioning scale 5 , or may be a combination of multiple first connecting members 4 and positioning scales 5 arranged in parallel on the first door body 1 .

[0040] In this embodiment, the positioning assembly 3 includes a first connecting member 4, preferably a sheet metal connecting frame, which is used to be pre-fixed to the refrigerator door body and can cooperate with the positioning ruler 5 so that the positioning ruler 5 can locate the installation position of the door body connecting device 30 in the height direction of the cabinet door body. The positioning method will be described in detail below.

[0041] Reference Figure 3 -6, the first connecting member 4 has a first connecting portion 6 for fixing to one end of the first door body 1, and a second connecting portion 7 connected to the first connecting portion 6; the second connecting portion 7 is provided with a limiting slide 71 extending along the first direction d1, a locking structure 72 protruding into the limiting slide 71 to limit the position of the positioning scale 5, and a fixing structure 73 provided on the outside of the limiting slide 71 for fixed cooperation with the second door body 2.

[0042] In this embodiment, the first connecting member 4 is divided into two parts, a first connecting part 6 and a second connecting part 7. The first connecting part 6 is used to connect to the refrigerator door body, and the second connecting part 7 is used to connect to the cabinet door body. The first connecting part 6 is provided with a screw hole 61 that cooperates with the refrigerator door body, and the first connecting part 6 is fastened to a preset position at one end of the refrigerator door body by passing a fixing screw 62 through the screw hole 61.

[0043] The positioning scale 5 is movably mounted on a limiting slide 71 of the second connecting portion 7. The extending direction of the limiting slide 71, i.e., the first direction d1, coincides with the height or vertical direction of the refrigerator. Thus, the limiting slide 71 guides the positioning scale 5 in vertical movement relative to the second connecting portion 7, thereby adjusting the vertical position of the positioning scale 5. Furthermore, a locking structure 72 protruding from the limiting slide 71 locks the adjusted position.

[0044] The positioning scale 5 has a guide plate 51 that is limited in the limiting slide 71 and cooperates with the limiting slide 71, and a positioning plate 52 connected to one end of the guide plate 51. The positioning plate 52 has a first positioning portion 521 and a second positioning portion 522 that extend in the opposite direction of the vertical guide plate 51; the second positioning portion 522 is used to support and cooperate with the end of the second door body 2.

[0045] In the built-in refrigerator of this embodiment, the positioning plate 52 is vertically connected to the end of the guide plate 51 and extends along the front and rear directions of the refrigerator door body; the first positioning portion 521 extends toward one side of the refrigerator door body, and its upper edge abuts against the lower edge of the cabinet bottom plate 21, and the second positioning portion 522 extends toward one side of the cabinet door body and is configured to support the placement of the cabinet door body.

[0046] The specific positioning method is: the guide plate 51 slides up and down in the limiting slide 71 to adjust the position of the positioning scale 5 in the vertical direction. When the upper edge of the first positioning part 521 is aligned with the lower edge of the cabinet bottom plate 21, this position can be locked by the locking structure 72 protruding into the limiting slide 71. The cabinet door body is placed on the second positioning part 522 to align the cabinet door body 2 and the cabinet bottom plate 21 to determine the installation position of the first connecting member 4 in the vertical direction of the second door body. At the same time, horizontal adjustment is performed visually to make the cabinet door body 2 completely close the cabinet 20, which can further determine the installation position of the first connecting member 4 in the horizontal direction of the second door body.

[0047] The positioning assembly 3 has a simple structure. The first connecting member 4 cooperates with the positioning scale 5 to achieve vertical and horizontal positioning of the first connecting member 4 on the second door body 2. It is highly reliable and easy to operate, and can achieve a modular design. The positioning solution implemented by the door connecting device 30 of the present application can save time and effort in installing the cabinet door.

[0048] Furthermore, the second connecting part 7 includes a main body 711 and a slide 712 connected to the main body 711 and protruding outward from the main body 711. The main body 711 and the slide 712 are spaced apart along the thickness direction of the main body 711 so that the limiting slide 71 is formed between the main body 711 and the slide 712.

[0049] In this embodiment, a guide groove 74 is provided at the end of the second connecting portion 7 away from the first connecting portion 6, and the slide 712 is connected and arranged on two opposite sides of the guide groove 74 perpendicular to the direction of the guide plate 51, and the slide 712 extends toward the middle of the guide groove 74 and is inclined toward the side of the guide plate 51, so that the slide 712 and the main body 711 are spaced apart in the thickness direction, jointly defining a limiting slide 71 that cooperates with the guide plate 51, and can prevent the guide plate 51 from detaching from the limiting slide 71 during movement.

[0050] The guide plate 51 is further provided with a slide groove 511 extending along the first direction d1 on the side facing the first connecting part 6. The slide 712 cooperates and abuts against the slide groove 511 to facilitate guiding the movement of the guide plate 51 in the vertical direction and limiting the movement of the guide plate 51 in the horizontal direction relative to the second connecting part 7.

[0051] In some other embodiments, the slide 712 can also be set to be integrally arranged around the outside of the main body 711, so that the slide 712 and the main body 711 are spaced apart in the thickness direction to form the limiting slide 71; the width of the slide 712 can be set to match the width of the guide plate 51, or slightly larger than the width of the guide plate 51, so as to limit the horizontal movement of the guide plate 51 relative to the second connecting part 7.

[0052] In addition, the second connection portion 7 is connected to one end of the first connection portion 6 and extends in a direction perpendicular to the first connection portion 6 .

[0053] In this embodiment, the first connector 4 is L-shaped, with the short side being configured as the first connecting portion 6 and the long side being configured as the second connecting portion 7, so as to facilitate matching connection with the end of the refrigerator door and the cabinet door panel, respectively. Specifically, the first connecting portion 6 and the second connecting portion 7 are perpendicular to each other. The first connecting portion 6 is used to connect to the bottom of the refrigerator door, and the second connecting portion 7 is located at one end of the first connecting portion 6 near the cabinet door and extends vertically downward.

[0054] The second connecting portion 7 is provided with a first limiting groove 75 at the connection with the first connecting portion 6 . The guide plate 51 passes through the first limiting groove 75 and rests on the main body 711 of the second connecting portion 7 .

[0055] In this embodiment, the guide plate 51 is passed through the first limiting groove 75 provided at the connection between the second connecting part 7 and the first connecting part 6, so that one side of the guide plate 51 is abutted against the second connecting part 7 and the other side is vertically clamped by the first connecting part 6, which can further limit the guide plate 51 and ensure that the guide plate 51 does not separate from the limiting slide 71 during movement.

[0056] The locking structure 72 includes a non-return claw 721 protruding into the limiting slide 71; the guide plate 51 is provided with a plurality of locking grooves 512 arranged at intervals along the first direction d1 on the side facing the second connecting part 7, and the non-return claw 721 can be engaged with any one of the plurality of locking grooves 512 to lock the position of the guide plate 51 relative to the limiting slide 71 in the first direction d1.

[0057] In this embodiment, the multiple locking grooves 512 of the guide plate 51 are evenly distributed along the height direction, wherein the width of the locking groove 512 is greater than the width of the anti-return claw 721 .

[0058] The positioning plate 52 also includes a baffle 523 connected to the end of the second positioning portion 522 away from the guide plate 51 and extending parallel to the guide plate 51. The baffle 523 cooperates with the guide plate 51 to form a receiving groove 53 for accommodating the second door body 2, which can clamp the bottom of the second door body 2 when the second door body 2 is placed on the second positioning portion 522 to prevent the second door body 2 from sliding back and forth.

[0059] The fixing structure 73 includes first fixing holes 731 provided on both sides of the limiting slide 71 and first fixing members 732 for passing through the first fixing holes 731 to fasten the second connecting portion 7 to the second door body 2 .

[0060] like Figure 6As shown, in this embodiment, the first fixing hole 731 and the screw hole 61 of the first connecting part 6 are both set as oblong holes. When the second connecting part 7 is fastened to the second door body 2 by passing the fixing screw through the first fixing hole 731, fine-tuning of the front-back and up-down directions can be achieved.

[0061] like Figure 7 -9, the door body connecting device 30 also includes a fixing component 8, and the fixing component 8 includes a second connecting member 9 for fixedly connecting the first door body 1 and the second door body 2, and the second connecting member 9 has a third connecting portion 11 for fixing to an end of the first door body 1 away from the first connecting portion 6, and a fourth connecting portion 12 connected to the third connecting portion 11, and the fourth connecting portion 12 is provided with an adhesive block 13 for cooperating with the second door body 2, and the adhesive block 13 is used to position the second connecting member 9 at a fixed position on the second door body 2.

[0062] In this embodiment, the second connecting member 9 is used to be fixed to the top of the first door body 1 , and is arranged at both ends of the first door body 1 opposite to the first connecting member 4 to enhance the connection strength with the second door body 2 .

[0063] The fourth connecting portion 12 is provided with an adhesive block 13 that cooperates with the second door body 2. When the second door body 2 is placed on the positioning plate 52, the second door body 2 is bonded together with the adhesive block 13. On the one hand, the second connecting member 9 can be directly and accurately positioned on the second door body 2 without any further measurement and positioning operations. On the other hand, the adhesive connection can provide a preliminary connection to the second door body 2 to maintain the positioning assembly 3 in the vertical and horizontal directions on the second door body 2, preventing positional shifting during the fastening connection via the first fixing member 732.

[0064] The fourth connecting portion 12 is connected to one end of the third connecting portion 11 and extends vertically upward. The fourth connecting portion 12 also has a plurality of second fixing holes 121 and a second fixing member for passing through the plurality of second fixing holes 121 to fasten the fourth connecting portion 12 to the second door body 2.

[0065] The door body connection device 30 also includes a cover 14, which is provided with a plurality of card blocks 141. A plurality of card slots 111 are opened in the middle of the third connection part 11. The plurality of card blocks 141 cooperate with the plurality of card slots 111 to cover the third connection part 11. The user will not see the second connection part 9 on the top, thereby enhancing the aesthetics.

[0066] The following describes the installation method for achieving door positioning and connection through the door connection device 30 provided by the present invention: Figure 1-9. The household appliance 10 has been positioned and installed in the cabinet 20. Next, the second door 2 needs to be positioned on the first door 1.

[0067] First, pre-fix the first connecting portion 6 of the first connecting member 4 to the preset position at the bottom of the first door body 1 using the fixing screws 62 to determine the installation position of the first connecting member 4 in the vertical direction; fix the third connecting portion 11 of the second connecting member 9 to the preset position at the top of the first door body 1 using the fixing screws to determine the installation position of the second connecting member 9 in the vertical direction;

[0068] Next, the guide plate 51 of the positioning scale 5 is passed through the first limiting groove 75 provided at the connection between the second connecting part 7 and the first connecting part 6, so that one side of the guide plate 51 is abutted against the main body 711 of the second connecting part 7, and the sliding groove 511 on the guide plate 51 is matched with the sliding plate 712 to abut against each other;

[0069] The operating guide plate 51 slides up and down in the limiting slide 71 to adjust the vertical position of the positioning scale 5. When the upper edge of the first positioning portion 521 is aligned with the cabinet bottom plate 21, this position is locked by the locking structure 72 protruding into the limiting slide 71.

[0070] Then, place the second door body 2 in the receiving groove 53 on the second positioning portion 522 so that the second door body 2 and the cabinet bottom plate 21 are aligned to determine the installation position of the first connecting member 4 in the vertical direction of the second door body 2. At the same time, visually adjust the second door body 2 laterally so that the second door body 2 completely closes the cabinet 20 to determine the installation position of the first connecting member 4 in the lateral direction of the second door body 2.

[0071] Press the second door body 2 so that the rear side of the second door body 2 contacts the adhesive block 13 of the fourth connecting portion 12 to perform a preliminary connection. When the second door body 2 is opened, the second connecting portion 7 is fastened to the rear side of the second door body 2 by the first fixing member 732, and the fourth connecting portion 12 is fastened to the rear side of the second door body 2 by the second fixing member 122.

[0072] Finally, remove the positioning ruler 5 , and engage the multiple clamping blocks 141 on the cover 14 with the multiple clamping slots 111 on the third connecting portion 11 , and then cover the cover 14 on the third connecting portion 11 .

[0073] To sum up, the door connecting device of the present invention can be used to install the cabinet door in a more time-saving and labor-saving manner. By cooperating with the first connecting member of the door connecting device and the positioning scale, the horizontal and vertical installation positions of the door connecting device on the second door can be accurately positioned. It has a simple structure, high reliability, easy operation, improved installation efficiency, and lower installation costs.

[0074] In the embodiments provided by the present invention, it should be understood that the embodiments of the structure described above are merely illustrative. For example, the division of the modules is merely a logical function division, and there may be other division methods in actual implementation. For example, multiple modules or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0075] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A door connecting device for connecting a first door to a second door arranged outside the first door, characterized in that: The door body connecting device includes: a positioning assembly, the positioning assembly including a first connecting member fixed to the first door body, and a positioning scale cooperating with the first connecting member to locate the installation position of the second door body in the height direction; The first connecting member comprises a first connecting portion for fixing to one end of the first door body, a second connecting portion connected to the first connecting portion, the second connecting portion being provided with a limiting slide extending along the first direction, a locking structure protruding into the limiting slide to limit the position of the positioning scale, and a fixing structure provided outside the limiting slide to be fixedly matched with the second door body; The positioning scale has a guide plate that is limited in the limiting slide and cooperates with the limiting slide, and a positioning plate connected to one end of the guide plate. The positioning plate has a first positioning portion and a second positioning portion extending in opposite directions along the direction perpendicular to the guide plate; the second positioning portion is used to support and cooperate with the end of the second door body.

2. The door connection device according to claim 1, characterized in that: The second connecting portion includes a main body, a sliding piece connected to the main body and protruding outward from the main body, and the main body and the sliding piece are spaced apart along the thickness direction of the main body to form the limiting slideway between the main body and the sliding piece.

3. The door connection device according to claim 2, characterized in that: The second connecting part is connected to one end of the first connecting part and extends in a direction perpendicular to the first connecting part; the second connecting part is provided with a first limiting groove at the connection with the first connecting part, and the guide plate passes through the first limiting groove and is abutted against the main body of the second connecting part.

4. The door connecting device according to claim 1, characterized in that: The locking structure includes a non-return claw protruding into the limiting slide; the side of the guide plate facing the second connecting part is provided with a plurality of locking grooves arranged at intervals along the first direction, and the non-return claw can be engaged with any one of the plurality of locking grooves to limit the movement of the guide plate relative to the limiting slide in the first direction.

5. The door connecting device according to claim 1, characterized in that: The fixing structure includes first fixing holes provided on both sides of the limiting slideway and second fixing members for passing through the first fixing holes to fasten the second connecting portion to the second door body.

6. The door connection device according to claim 1, characterized in that: The positioning plate further comprises a baffle plate connected to an end of the second positioning portion away from the guide plate and extending parallel to the guide plate. The baffle plate cooperates with the guide plate to form an accommodating groove for accommodating the second door body.

7. The door connection device according to claim 1, characterized in that: The door body connecting device also includes a fixing component, which includes a second connecting member for fixedly connecting the first door body and the second door body, the second connecting member has a third connecting portion for fixing to an end of the first door body away from the first connecting portion, and a fourth connecting portion connected to the third connecting portion, the fourth connecting portion is provided with an adhesive block for cooperating with the second door body, and the adhesive block is used to position the second connecting member at a fixed position on the second door body.

8. The door connecting device according to claim 7, characterized in that: The fourth connection portion is connected to one end of the third connection portion and extends vertically upward. The fourth connection portion also has a plurality of second fixing holes and a second fixing member for passing through the plurality of second fixing holes to fasten the fourth connection portion to the second door body.

9. The door connecting device according to claim 7, characterized in that: The door body connecting device also includes a cover, which is provided with a plurality of card blocks. A plurality of card slots are opened in the middle of the third connecting part. The plurality of card blocks cooperate with the plurality of card slots to cover the third connecting part.

10. A door assembly, characterized in that: It comprises a first door body, a second door body arranged outside the first door body, and a door body connecting device as described in any one of claims 1 to 9, wherein the door body connecting device is fixedly connected between the first door body and the second door body.

11. A household appliance device, characterized in that: It includes a household appliance, a cabinet for accommodating the household appliance, and a door connecting device as described in any one of claims 1 to 9, wherein the household appliance has a first door body, the cabinet has a second door body, the second door body is covered and arranged on the outside of the first door body, and the door connecting device is fixedly connected between the first door body and the second door body.

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