Sliding connection device, door assembly and household appliance device

Abstract

Disclosed in the present application are a sliding connection device, a door assembly and a household appliance device. The sliding connection device is configured to slidably connect a first door to a second door, and comprises a sliding connection assembly and a positioning workpiece, which is used for positioning the relative position between the sliding connection assembly and the second door, wherein a pre-positioning structure is provided between the positioning workpiece and the sliding connection assembly; and the positioning workpiece comprises an alignment part, which is configured to be aligned with a set position on the second door for positioning. The positioning workpiece and the second door are positioned by means of alignment, such that the structure is simple, and the positioning is quick.

Description

Sliding connection device, door body assembly and household appliance device

[0001] The present application is based on Chinese Patent Application No. 202421228502.5, filed on May 31, 2024, and Chinese Patent Application No. 202410697714.6, filed on May 31, 2024, and claims priority to both of the above-mentioned Chinese Patent Applications, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the field of household appliances, and in particular to a sliding connection device, a door body assembly and a household appliance device. BACKGROUND

[0003] The connection between the door body and the cabinet of an embedded household refrigerator can be 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 refrigerator is installed into the cabinet, the refrigerator door body and the cabinet door panel are allowed to rotate relative to each other to open or close the cabinet.

[0004] Generally, a sliding connection assembly and a positioning tool for assisting in the installation of the sliding connection assembly are provided between the refrigerator door body and the cabinet door panel. The positioning tool needs to ensure that the sliding connection assembly is accurately installed to the set position of the refrigerator door body and the cabinet door panel.

[0005] In the related art, the positioning tool is positioned with the cabinet door panel through a buckling mode, thereby realizing the positioning of the sliding connection assembly and the cabinet door panel. When the sliding connection assembly and the positioning tool are assembled with the cabinet door panel at the same time, the above-mentioned buckling mode is also used for positioning, which leads to inconvenient operation.

[0006] In the related art, screws are often used when the sliding connection assembly and the positioning tool are assembled with the refrigerator door body or the cabinet door panel. Generally, after the sliding member is positioned with the cabinet door panel at the set position, the screws are installed and tightened for fixation. In this way, the sliding member and the positioning tool both have installation holes reserved. However, the multiple installation holes need to have high alignment to ensure the smooth assembly of the screws. When the screws are tightened, the screw shanks cannot be quickly positioned to the innermost installation holes. If there is deviation in the multiple interconnected installation holes, the subsequently installed screws will be offset, and the position of the sliding member fixed to the cabinet door panel will be deviated from the set position.

[0007] Any related art mentioned in the specification does not mean that it is recognized or suggested that the related art constitutes part of the common general knowledge of any jurisdiction, or can be reasonably expected to be understood, considered relevant and / or combined with other related art by those skilled in the art. SUMMARY

[0008] One of the purposes of the present application is to provide a sliding connection device to solve the technical problem of inconvenient operation of the positioning mode between the positioning tool and the cabinet door plate in the related art.

[0009] To achieve one of the above purposes, an embodiment of the present application provides a sliding connection device for slidingly connecting a first door body to a second door body, comprising a sliding connection assembly and a positioning tool for positioning the relative position between the sliding connection assembly and the second door body; a pre-positioning structure is arranged between the positioning tool and the sliding connection assembly, and the positioning tool comprises an alignment part for aligning and positioning with a set position on the second door body.

[0010] Compared with the related art, the present application has the beneficial effect that the positioning of the positioning tool and the second door body is achieved by alignment, the structure is simple, and the positioning is fast.

[0011] The terms "comprise" and variations of the term, such as "comprises" and "comprising," "includes" and "including," "contains" and "containing," "involves" and "involving," unless the context requires otherwise, do not exclude other features, ingredients, components, or steps. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a perspective view of a sliding connection device according to an embodiment of the present application.

[0013] Fig. 2 is an exploded view of a sliding connection device according to an embodiment of the present application.

[0014] Fig. 3 is a side view of a sliding connection device according to an embodiment of the present application in an assembled state.

[0015] Fig. 4 is a top view of a sliding connection device according to an embodiment of the present application in an assembled state.

[0016] Fig. 5 is a perspective view of a household appliance device according to an embodiment of the present application.

[0017] Fig. 6 is an enlarged view of the structure within the circle in Fig. 5.

[0018] Fig. 7 is a top view of a household appliance device according to an embodiment of the present application.

[0019] Fig. 8 is an enlarged view of the structure within the circle in Fig. 7.

[0020] Fig. 9 is a partial sectional view in the height direction of a household appliance device according to an embodiment of the present application in a top view state.

[0021] Figure 10 is a schematic diagram of the assembled state of the slide and the positioning tool in cooperation with the base in an embodiment of the present application.

[0022] Figure 11 is a schematic diagram of the state of the slide after being assembled into the second door body and the positioning tool being removed in an embodiment of the present application.

[0023] Figure 12 is a schematic diagram of the assembled state of the slide connection assembly and the first door body and the second door body in an embodiment of the present application.

[0024] Figure 13 is a perspective view of a slide connection device in another embodiment of the present application.

[0025] Figure 14 is a perspective view of a slide connection device in yet another embodiment of the present application. DETAILED DESCRIPTION

[0026] The present application will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments do not limit the present application, and any structural, method, or functional changes made by those skilled in the art based on these embodiments are included in the scope of the present application.

[0027] The terms such as "upper", "above", "lower", "below", and the like used herein to indicate spatial relative positions are used to describe the relationship of one unit or feature to another unit or feature as shown in the drawings for the purpose of convenience. The spatial relative position terms can be intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. For example, if the device in the drawings is turned over, the unit described as being "below" or "under" the other unit or feature will be "above" the other unit or feature. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatial-related descriptions used herein are interpreted accordingly.

[0028] Referring to Figure 1, an embodiment of the present application provides a slide connection device 100, and referring to Figure 5, an embodiment of the present application provides a household appliance device 1000. The household appliance device 1000 includes an embedded household appliance 200, such as a refrigerator, and a cabinet 300 for accommodating the embedded household appliance 200, and the household appliance 200 includes a first door body 210 and a cabinet, and the first door body 210 is used to open or close the cabinet.

[0029] The cabinet 300 comprises a second door body 310 covering the first door body 210, and the sliding connecting device 100 is used to slidingly connect the first door body 210 to the second door body 310, and when the second door body 310 is opened, the first door body 210 can be driven to open, thereby opening the box body of the household appliance 200.

[0030] In combination with FIGS. 2-4, the sliding connecting device 100 comprises a sliding connecting assembly and a positioning workpiece 30 used to position the relative position between the sliding connecting assembly and the second door body 310. The positioning workpiece 30 is used to assist in positioning the sliding connecting assembly to be fixed at an optimal position of the second door body 210, and generally, the positioning workpiece 30 needs to be removed relative to the sliding piece 10 after positioning is completed.

[0031] The sliding connecting assembly comprises a sliding piece 10 and a base 20 which are slidingly connected, and the positioning workpiece 30, the sliding piece 10 and the base 20 are arranged between the first door body 210 and the second door body 310 to slidingly connect the first door body 210 and the second door body 310. The sliding piece 10, the base 20, and the positioning workpiece 30 are respectively formed.

[0032] In other embodiments, in combination with FIG. 13, the base 20 and the positioning workpiece 30 can be integrally formed, and are connected through a separable part, and when positioning is completed, the positioning workpiece 30 and the base 20 are separated through the operation of the separable part, so that the positioning workpiece 30 is separated from the base 20 and removed from the sliding piece 10. It can be understood that other structures of the base 20 and the positioning workpiece 30 remain consistent.

[0033] The sliding connecting device 100 further comprises a first fastener 40 used to fix the sliding piece 10 to the second door body 310, and a second fastener 50 used to fix the base 20 to the first door body 210. In this way, the sliding piece 10 is relatively fixed to the second door body 310, and the base 20 is relatively fixed to the first door body 210, and the sliding piece 10 and the base 20 relatively slide, thereby driving the first door body 210 and the second door body 310 to relatively slide.

[0034] Specifically, the first fastener 40 and the second fastener 50 are both screws, and the first fastener 40 and the second fastener 50 both comprise a screw cap and a screw rod. In specific embodiments, the size and detailed structure of the first fastener 40 and the second fastener 50 can be different, as long as the function of fixed connection can be realized through the screw rod.

[0035] The sliding piece 10 is a sheet-shaped body, which comprises a mounting portion 11 and a cover portion 13, the mounting portion 11 is used to be fixedly mounted on the second door body 310, therefore, the mounting portion 11 is provided with a first mounting hole 111 matched with the first fastener 40, after mounting, in order to have better appearance, the cover portion 13 is used to cover the first fastener 40 and the first mounting hole 111.

[0036] The cover portion 13 and the mounting portion 11 have a connecting structure, the connecting structure is configured such that the cover portion 13 can rotate around the connecting structure to cover part of the surface of the mounting portion 11, and the connecting structure will not be broken; in other words, the thickness of the connecting structure has certain connecting rigidity, but also can be elastically deformed to allow the cover portion 13 to cover the mounting portion 11.

[0037] In other embodiments, the cover portion 13 and the mounting portion 11 can be connected by a rotating shaft, in this way, the cover portion 13 can rotate to the surface of the mounting portion 11; or the cover portion 13 and the mounting portion 11 are connected by a separable structure, when the sliding piece 10 is assembled, the separable structure is operated to separate the cover portion 13 from the mounting portion 11, and then the cover portion 13 covers part of the surface of the mounting portion 11. Specifically, the separable structure can be a thin and easy-to-break structure, or a detachable buckle structure.

[0038] The two long sides of the mounting portion 11 are formed into sliding portions 12, which are used to slide in the sliding groove 220 of the base 20. One short side of the mounting portion 11 is connected with the cover portion 13. The surface of the mounting portion 11 is provided with a recessed groove 110 used to accommodate the cover portion 13. It can be understood that the recessed groove 110 does not penetrate the sliding piece 10.

[0039] The first mounting hole 111 is further provided in the recessed groove 110. It can be understood that the first mounting hole 111 is provided through the sliding piece 10 to allow the first fastener 40 to pass through and be mounted, and after the cover portion 13 is matched with the recessed groove 110, the first mounting hole 111 and the first fastener 40 in the recessed groove 110 are covered.

[0040] The sliding piece 10 further comprises a positioning structure 112 provided in the first mounting hole 111, which is used to pre-position the first fastener 40 in the first mounting hole 111. In this way, the first fastener 40 can be pre-installed on the sliding piece 10, without the need to wait until the sliding piece 10 and the second door body 310 are assembled, and then install the first fastener 40. Moreover, the first fastener 40 is pre-positioned on the sliding piece 10, which is not easy to lose, and will not be confused with other fasteners of similar size and similar structure.

[0041] The positioning structure 112 includes a positioning rib 113 which is positioned in cooperation with the screw rod of the first fastener 40, the minimum inner diameter of the positioning rib 113 is not greater than the outer diameter of the screw rod of the first fastener 40, and the positioning rib 113 is connected to the inner side edge of the mounting hole 112. In this way, the positioning rib 113 can clasp the screw rod of the first fastener 40, thereby achieving pre-positioning. The shape of the positioning rib 113 can be adapted to the screw rod to be circular, so that the inner side edge of the positioning rib 113 is completely matched with the outer periphery of the screw rod, thereby enhancing the friction and increasing the bonding force of the two.

[0042] The positioning rib 113 and the inner side edge of the mounting hole 112 form an avoiding space therebetween, so as to provide a space for elastic deformation of the positioning rib 113, facilitate installation of the first fastener 40, and the positioning structure 112 includes a connecting rib 114 which connects the positioning rib 113 and the inner side edge of the mounting hole.

[0043] The positioning rib 113 is used for pre-positioning the first fastener 40, when the first fastener 40 starts to be tightened and performs a screwing motion, if the positioning rib 113 is too hard, the operator is more laborious, and the positioning rib 113 is prone to be broken; after the avoiding space is provided, the cooperation between the positioning rib 113 and the first fastener 40 is relatively easy, which facilitates the operator to install, and the positioning rib 113 is not prone to be broken, thereby prolonging the service life of the sliding member 10.

[0044] The base 20 includes a vertical third mounting plate 21 and a fourth mounting plate 22, the third mounting plate 21 cooperates with the first mounting plate 31 of the positioning workpiece 30, the fourth mounting plate 22 is parallel to the sliding member 10, and the fourth mounting plate 22 is provided with a sliding groove 220 for sliding of the sliding member 10.

[0045] The base 20 includes a second mounting hole 211 for installation of the second fastener 50, and a limiting structure which cooperates with the second fastener 50, so as to prevent the second fastener 50 from moving and falling off. The second mounting hole 211 and the limiting structure are arranged on the third mounting plate 21. The second fastener 50 is usually pre-installed on the first door body 210, and the base 20 is installed on the first door body 210 by cooperation of the second mounting hole 211 and the second fastener 50.

[0046] The limiting structure includes a locking hole 212 which communicates with the second mounting hole 211, the inner diameter of the second mounting hole 211 is greater than the nut of the second fastener 50, and the inner diameter of the locking hole 212 is adapted to the outer diameter of the screw rod of the second fastener 50.

[0047] When fixed, the base 20 is first engaged with the gap between the second fastener 50 and the second door body 310 through the second mounting hole 211, so that the base 20 can be clamped between the second fastener 50 and the first door body 210, and then the base 20 is moved so that the screw rod of the second fastener 50 is engaged with the locking hole 212, the inner diameter of the locking hole 212 can be less than or equal to the outer diameter of the screw rod of the second fastener 50, forming an interference fit to limit the movement of the second fastener 50.

[0048] The positioning workpiece 30 is used to position the sliding piece 10 on the second door body 310. After the positioning workpiece 30 is assembled with the sliding piece 10, the positioning workpiece 30 is aligned with the second door body 310, so that the sliding piece 10 is aligned with the second door body 310, and then the sliding piece 10 is fixed on the second door body 310.

[0049] The positioning workpiece 30 and the sliding connection assembly are provided with a predetermined positioning structure. The positioning workpiece 30 includes an alignment part 36 used to align and position a predetermined position on the second door body 310. In this way, after the positioning workpiece 30 and the sliding connection assembly are pre-positioned and assembled, the positioning workpiece 30 is positioned with the second door body 310 by alignment, which is accurate, simple in structure and convenient to operate. Specifically, the positioning workpiece 30 and the sliding piece 10 are pre-positioned and assembled, and then assembled with the base 20.

[0050] As described above, the main function of the positioning workpiece 30 is to assist the sliding piece 10 in positioning on the second door body 310. The alignment part 36 is used to realize the alignment and positioning between the positioning workpiece 30 and the second door body 310, and then indirectly realize the alignment and positioning between the sliding piece 10 and the second door body 310.

[0051] In one embodiment, the alignment part 36 has an alignment surface 361 used to align and position the side surface of the second door body 310. Specifically, as shown in FIGS. 6-8, the alignment surface 361 is planar. When the alignment surface 361 is aligned with the side surface of the second door body 310 and located in the same plane, the alignment can be directly observed, or measured by hand, or measured by using a ruler or other tools, proving that the positioning workpiece 30 has been installed in place, and the first fastener 40 can be further operated.

[0052] The alignment part 36 has an abutting surface 362 used to abut the inner surface of the second door body 310, and the alignment surface 361 is perpendicular to the abutting surface 362. The alignment part 36 is a square plate, and the alignment surface 361 and the abutting surface 362 are adjacent outer side surfaces. In this way, the abutting surface 362 abuts the inner surface of the second door body 310, and the alignment surface 361 is aligned with the side surface of the second door body 310, which is more conducive to accurate positioning between the positioning workpiece 30 and the second door body 310.

[0053] The positioning workpiece 30 comprises two alignment parts 36 arranged at intervals on the same side of the positioning workpiece 30, and a through hole 363 is formed between the two alignment parts 36 for the sliding piece 10 to pass through.

[0054] As shown in FIGS. 2 and 6, the sliding piece 10 comprises a cover part 13 connected to one short side of the mounting part 11. When the sliding piece 10 is in the initial state, the cover part 13 is longer, and when the sliding piece 10 is matched with the positioning workpiece 30, the through hole 363 can also avoid the cover part 13, and the two alignment parts 36 are located on both sides of the cover part 13 along the width direction of the cover part 13, so as to facilitate the abutting surface 362 to abut against the inner surface of the second door body 310.

[0055] As shown in FIG. 14, the abutting surfaces 362 of the two alignment parts 36 can also be extended to be connected together to form a plane to abut against the inner surface of the second door body 310.

[0056] The positioning workpiece 30 comprises a first mounting plate 31 matched with the base 20 and a second mounting plate 32 matched with the sliding piece 10. The first mounting plate 31 and the second mounting plate 32 are perpendicular to each other. The first mounting plate 31 is perpendicular to the second mounting plate 32. The alignment part 36 is arranged on the second mounting plate 32 and extends vertically from the second mounting plate 32. The alignment part 36 is located on the opposite sides of the second mounting plate 32 with the first mounting plate 31.

[0057] Specifically, the "opposite sides" refer to one side facing the first door body 210 and the other side facing the second door body 310. The alignment part 36 is arranged vertically from the edge of the second mounting plate 32 towards the second door body 310 to realize alignment with the second door body 310. The first mounting plate 31 is arranged vertically from the edge of the second mounting plate 32 towards the first door body 210 to realize fixed connection with the first door body 210.

[0058] The pre-positioning structure comprises a first pre-positioning part 34 arranged on the second mounting plate 32 and a second pre-positioning part 14 arranged on the sliding piece 10. The first pre-positioning part 34 is arranged towards the sliding piece 10, and the second pre-positioning part 14 is matched with the first pre-positioning part 34. When the positioning workpiece 30 and the sliding piece 10 are pre-positioned and assembled, the first fastener 40 should be accommodated into the accommodation groove 331.

[0059] Specifically, the first predetermined positioning part 34 is a positioning column arranged towards the sliding piece 10, and the second predetermined positioning part 14 is a positioning hole; or the first predetermined positioning part 34 is a positioning hole, and the second predetermined positioning part 14 is a positioning column arranged towards the positioning workpiece. The predetermined positioning structure is a positioning column and a positioning hole matched with each other, and alignment is simple and convenient to install, and the positioning workpiece 30 is also convenient to pull out from the sliding piece 10 when disassembled later.

[0060] Specifically, after the positioning workpiece 30 and the sliding piece 10 are pre-positioned and assembled, the fixed connection between them can be further strengthened by a buckle structure. The positioning workpiece 30 is provided with an elastic buckle 35 near the first predetermined positioning part 34, and the sliding piece 10 is provided with a buckle hole 15 matched with the elastic buckle 35. The elastic buckle 35 and the buckle hole 15 are combined to strengthen the stability of the connection between them.

[0061] The positioning workpiece 30 comprises a limiting column 33 arranged on the second mounting plate 32 and opposite to the first mounting hole 111. The limiting column 33 comprises a receiving groove 331 for receiving a first fastener 40. The first fastener 40 is limited in the receiving groove 331 and matched with the first mounting hole 111.

[0062] The limiting column 33 comprises a step part 332 arranged at one end of the receiving groove 331 away from the first mounting hole 111. The step part 332 protrudes inwardly relative to the inner wall of the receiving groove 331. The step part 332 has a step surface 333 facing the mounting hole. The distance between the step surface 333 and the first mounting hole 111 is not greater than the length of the first fastener 40. The first fastener 40 has a pre-installation state. In the pre-installation state, the nut of the first fastener 40 is limited on the step surface 333 in the axial direction, and the end of the screw rod is limited on the positioning rib 113.

[0063] Continuing to combine FIGS. 6 and 9, when the positioning workpiece 30 and the sliding piece 10 are assembled, the first fastener 40 is pre-installed in the receiving groove 331 and the first mounting hole 111. When the positioning workpiece 30 and the sliding piece 10 are further assembled with the second door body 310, they may shake. In order to prevent the first fastener 40 from being affected and deviating, the step surface 333 is arranged in the axial direction of the first fastener 40. In this way, the nut of the first fastener 40 is limited in the axial direction by the step surface 333, and the end of the screw rod of the first fastener 40 is also limited in the axial direction by the positioning rib 113, so that the first fastener 40 as a whole cannot deviate in the axial direction. It should be noted that the axial direction of the first fastener 40 is also the axial direction of the nut and the screw rod.

[0064] The accommodation groove 331 gradually increases in inner diameter in the direction close to the first mounting hole 111, and the first fastener 40 has a pre-installation state in which the nut of the first fastener 40 is limited in the radial direction at the inner wall surface of the accommodation groove 331 close to the step surface 333.

[0065] Specifically, the step portion 332 protrudes inwardly relative to the inner wall surface of the accommodation groove 331, the nut of the first fastener 40 is limited in the axial direction at the step surface 333 and below the step surface 333. If the inner diameter of the inner wall surface of the accommodation groove 331 below the step surface 333 is too large, the nut of the first fastener 40 can be tilted in the radial direction under the condition of shaking or vibration. Therefore, the inner diameter of the accommodation groove 331 close to the step surface 333 is less than or equal to the outer diameter of the nut of the first fastener 40, so as to hold the first fastener 40. Alternatively, the inner diameter of the accommodation groove 331 close to the step surface 333 is slightly larger than the outer diameter of the nut of the first fastener 40 within 3 mm, and within the deviation range, the radial deviation of the first fastener 40 does not affect the normal installation of the first fastener 40.

[0066] The limiting column 33 includes a peripheral wall 334 surrounding the accommodation groove 331, and a through groove 335 provided on the peripheral wall 334, the through groove 335 penetrating the inner surface and the outer surface of the peripheral wall 334 in the radial direction of the limiting column 33, so that the peripheral wall 334 includes a plurality of arc-shaped walls arranged at intervals in the circumferential direction, and the peripheral wall 334 has a certain elastic deformation space to facilitate the installation of the first fastener 40.

[0067] In combination with FIGS. 10-12, the application further provides an installation method of the sliding connection device 100, including the following installation steps:

[0068] The base 20 is provided; the base 20 can be fixed to the first door body 210 in advance.

[0069] Specifically, the second fastener 50 is first loosened by 5-8 mm, and in other embodiments, other values can also be used according to different sizes of the second fastener 50 or the base 20, as long as the base 20 can be clamped between the second fastener 50 and the first door body 210.

[0070] After the second fastener 50 is lifted by a distance relative to the first door body 210, the base 20 is clamped between the second fastener 50 and the first door body 210 through the second mounting hole 211, then the base 20 is moved to cooperate the locking hole 212 with the second fastener 50, and then the second fastener 50 is tightened to pre-fix the base 20 to the first door body 210.

[0071] The sliding member 10 is provided with a first mounting hole 111 and a positioning structure 112 arranged in the first mounting hole 111.

[0072] The first fastener 40 is provided and positioned in the positioning structure 112, so that the first fastener 40 is combined with the sliding member 10 in advance.

[0073] The positioning workpiece 30 is provided and assembled with the sliding member 10 pre-assembled with the first fastener 40, so that the receiving groove 331 limits the first fastener 40, and the first fastener 40 is limited between the sliding member 10 and the positioning workpiece 30, facilitating subsequent fixation.

[0074] It can be understood that the providing sequence of the base 20, the sliding member 10, the positioning workpiece 30 and the first fastener 40 is not limited. It can be understood that the base 20 is independently fixed to the first door body 210. The base 20 can be pre-fixed to the first door body 210, and then the sliding member 10 and the positioning workpiece 30 are assembled. Alternatively, the sliding member 10 and the positioning workpiece 30 are assembled, and then the base 20 is fixed to the first door body 210. In summary, the base is fixed to the first door body 210, and the assembly of the sliding member 10 and the positioning workpiece 30 is independent.

[0075] The key point is that the first fastener 40 should be positioned in the positioning structure 112 of the sliding member 10 in advance, and then assembled with the positioning workpiece 30. The first positioning portion 34 and the second positioning portion 14 are positioned and matched, the elastic buckle 35 and the buckle hole 15 are buckled and matched, and the cover portion 13 passes through the through hole 363. After the positioning workpiece 30 and the sliding member 10 are assembled, the nut of the first fastener 40 is limited in the receiving groove 331, and the screw end of the first fastener 40 is limited in the positioning structure 112.

[0076] Then, the sliding member 10 and the positioning workpiece 30 are assembled with the base 20 on the first door body 210. Specifically, referring to FIGS. 10-12, the first door body 210 and the second door body 310 should be opened to the same angle. The assembled sliding member 10 and the positioning workpiece 30 are assembled with the base 20 along the length direction of the first door body 210, wherein the sliding portion 12 of the sliding member 10 slides into the sliding groove 220 of the base 20, and when the sliding distance reaches a certain distance, the first mounting plate 31 of the positioning workpiece 30 gradually abuts against the third mounting plate 21 of the base 20. At this time, referring to the alignment portion 36, when the alignment surface 361 is aligned with the side surface of the second door body 310 and located in the same plane, it indicates that the positioning workpiece 30 has been installed in place, and the first mounting plate 31 and the third mounting plate 21 can be buckled and fixed to further position the positioning workpiece 30.

[0077] Further, the positioning workpiece 30 is pre-installed with the first fastener 40 in the sliding piece 10, the first fastener 40 is tightened by a screwdriver, the first fastener 40 is fixed to the second door body 310 along the axial direction of the receiving groove 331, the mounting rib 113 of the receiving groove 331 can play a limiting role, when the head of the first fastener 40 abuts against the bottom surface of the recessed groove 110, the first fastener 40 is installed in place, thus, the sliding piece 10 is fixed to the second door body 310 by means of the positioning workpiece 30.

[0078] Finally, the positioning workpiece 30 is detached from the base 20 and the sliding piece 10. The buckle connection between the first mounting plate 31 and the third mounting plate 21 is released, the buckle connection between the second mounting plate 32 and the sliding piece 10 is released, the first predetermined positioning part 34 and the second predetermined positioning part 14 are pulled out and separated, thus, the positioning workpiece 30 can be detached from the base 20 and the sliding piece 10.

[0079] In view of the aesthetic effect, the cover part 13 of the sliding piece 10 is rotated and covered to the recessed groove 110, so as to cover the first fastener 40 and the first mounting hole 111 in the recessed groove 110; the sliding connection device 100 also includes a base cover 23, the base cover 23 and the base 20 can be formed integrally, the base cover 23 and the base 20 are further separated during assembly, which can prevent the base cover 23 from being lost, then the base cover 23 is assembled to the outer periphery of the base 20 to cover the entire base 20, which plays an aesthetic and decorative role; the base cover 33 and the base 20 can also be formed independently of each other.

[0080] Among them, the cover part 13 and the base cover 23 are both provided with notches for facilitating the operation of workers to meet the subsequent needs of opening the cover part 13 or the base cover 23.

[0081] An embodiment of the present application further provides a door body assembly, the door body assembly comprising the first door body 210, the second door body 310 and the sliding connection device 100, the sliding connection assembly is arranged between the first door body 210 and the second door body 310, in other words, the sliding piece 10 and the base 20 are arranged between the first door body 210 and the second door body 310.

[0082] The beneficial effects of the present application are that the alignment part 36 is used to realize positioning with the second door body 310 in an aligned manner, the structure is simple, and the operation is convenient; the pre-positioning structure and the buckle structure are arranged between the sliding piece 10 and the positioning workpiece 30, after the pre-positioning assembly of the two, the positioning workpiece 30 is further aligned and positioned with the second door body 310, and the positioning accuracy is improved; the positioning structure 112 of the sliding piece 10 is used to pre-position the first fastener 40, and the subsequent installation of the first fastener 40 is convenient; the receiving groove 331 of the positioning workpiece 30 limits the nut of the first fastener 40, and the positioning structure 112 limits the screw rod of the first fastener 40, and the first fastener 40 is limited in the axial direction and the radial direction and is not easy to displace.

[0083] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

[0084] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and are not used to limit the protection scope of the present application, and equivalent embodiments or changes made without departing from the spirit of the technical art of the present application should be included in the protection scope of the present application.

Claims

1. A sliding connection device for slidingly connecting a first door body to a second door body, characterized in that, The sliding connection assembly and the positioning workpiece for positioning the relative position between the sliding connection assembly and the second door body are provided with a pre-positioning structure, and the positioning workpiece comprises an alignment part for aligning and positioning with a set position on the second door body.

2. The sliding connection device according to claim 1, wherein The sliding connection assembly comprises a slidingly connected base and a sliding part, the positioning workpiece comprises a first mounting plate matched with the base and a second mounting plate matched with the sliding part, the first mounting plate is perpendicular to the second mounting plate, the alignment part is arranged on the second mounting plate and extends perpendicularly from the second mounting plate, and the alignment part and the first mounting plate are located on opposite sides of the second mounting plate.

3. The sliding connection device according to claim 2, wherein The pre-positioning structure comprises a first pre-positioning part arranged on the second mounting plate and a second pre-positioning part arranged on the sliding part, the first pre-positioning part is pre-positioned and matched with the second pre-positioning part, and the positioning workpiece and the sliding part are pre-positioned and assembled.

4. The slip joint device of claim 2, wherein, The sliding connection device comprises a first fastener for fixing the sliding part to the second door body, the sliding part comprises a first mounting hole for mounting the first fastener, and a positioning structure arranged on the first mounting hole is used for pre-positioning the first fastener.

5. The slip joint device of claim 4, wherein, The first fastener is a screw, the first fastener comprises a screw cap and a screw rod, the positioning structure comprises a positioning rib matched with the screw rod, the minimum inner diameter of the positioning rib is not greater than the outer diameter of the screw rod, and the positioning rib is connected to the inner side edge of the mounting hole.

6. A sliding connection device according to claim 5, characterised in that An avoiding space is formed between the positioning rib and the inner side edge of the mounting hole, and the positioning structure comprises a connecting rib connecting the positioning rib and the inner side edge of the mounting hole.

7. The slip joint device of claim 2, wherein, The sliding connection device comprises a second fastener for fixing the base to the first door body, the base comprises a second mounting hole for mounting the second fastener, and a limiting structure matched with the second fastener.

8. The sliding connection device according to claim 7, wherein The second fastener is a screw, the limiting structure comprises a locking hole communicated with the second mounting hole, the inner diameter of the second mounting hole is greater than the screw cap of the second fastener, and the inner diameter of the locking hole is matched with the outer diameter of the screw rod of the second fastener.

9. A sliding connection device for slidingly connecting a first door body to a second door body, characterized by, The sliding connection assembly and the positioning workpiece for positioning the relative position between the sliding connection assembly and the second door body are provided with a pre-positioning structure, and the positioning workpiece comprises an alignment part for aligning and positioning with a set position on the second door body.

10. The sliding connection device according to claim 9, wherein The sliding connection assembly comprises a slidingly connected base and a sliding part, the positioning workpiece comprises a first mounting plate matched with the base and a second mounting plate matched with the sliding part, the first mounting plate is perpendicular to the second mounting plate, the alignment part is arranged on the second mounting plate and extends perpendicularly from the second mounting plate, and the alignment part and the first mounting plate are located on opposite sides of the second mounting plate.

11. The slip joint device of claim 10, wherein, The pre-positioning structure comprises a first pre-positioning part arranged on the second mounting plate and a second pre-positioning part arranged on the sliding part, the first pre-positioning part is pre-positioned and matched with the second pre-positioning part, and the positioning workpiece and the sliding part are pre-positioned and assembled. The sliding connection device comprises a first fastener for fixing the sliding part to the second door body, the sliding part comprises a first mounting hole for mounting the first fastener, and a positioning structure arranged on the first mounting hole is used for pre-positioning the first fastener. The first fastener is a screw, the first fastener comprises a screw cap and a screw rod, the positioning structure comprises a positioning rib matched with the screw rod, the minimum inner diameter of the positioning rib is not greater than the outer diameter of the screw rod, and the positioning rib is connected to the inner side edge of the mounting hole. An avoiding space is formed between the positioning rib and the inner side edge of the mounting hole, and the positioning structure comprises a connecting rib connecting the positioning rib and the inner side edge of the mounting hole. The sliding connection device comprises a second fastener for fixing the base to the first door body, the base comprises a second mounting hole for mounting the second fastener, and a limiting structure matched with the second fastener. The second fastener is a screw, the limiting structure comprises a locking hole communicated with the second mounting hole, the inner diameter of the second mounting hole is greater than the screw cap of the second fastener, and the inner diameter of the locking hole is matched with the outer diameter of the screw rod of the second fastener. The sliding connection assembly and the positioning workpiece for positioning the relative position between the sliding connection assembly and the second door body are provided with a pre-positioning structure, and the positioning workpiece comprises an alignment part for aligning and positioning with a set position on the second door body. The sliding connection assembly comprises a slidingly connected base and a sliding part, the positioning workpiece comprises a first mounting plate matched with the base and a second mounting plate matched with the sliding part, the first mounting plate is perpendicular to the second mounting plate, the alignment part is arranged on the second mounting plate and extends perpendicularly from the second mounting plate, and the alignment part and the first mounting plate are located on opposite sides of the second mounting plate. The pre-positioning structure comprises a first pre-positioning part arranged on the second mounting plate and a second pre-positioning part arranged on the sliding part, the first pre-positioning part is pre-positioned and matched with the second pre-positioning part, and the positioning workpiece and the sliding part are pre-positioned and assembled. The sliding connection device comprises a first fastener for fixing the sliding part to the second door body, the sliding part comprises a first mounting hole for mounting the first fastener, and a positioning structure arranged on the first mounting hole is used for pre-positioning the first fastener. The first fastener is a screw, the first fastener comprises a screw cap and a screw rod, the positioning structure comprises a positioning rib matched with the screw rod, the minimum inner diameter of the positioning rib is not greater than the outer diameter of the screw rod, and the positioning rib is connected to the inner side edge of the mounting hole. An avoiding space is formed between the positioning rib and the inner side edge of the mounting hole, and the positioning structure comprises a connecting rib connecting the positioning rib and the inner side edge of the mounting hole. The sliding connection device comprises a second fastener for fixing the base to the first door body, the base comprises a second mounting hole for mounting the second fastener, and a limiting structure matched with the second fastener. The second fastener is a screw, the limiting structure comprises a locking hole communicated with the second mounting hole, the inner diameter of the second mounting hole is greater than the screw cap of the second fastener, and the inner diameter of the locking hole is matched with the outer diameter of the screw rod of the second fastener. The sliding connection assembly and the positioning workpiece for positioning the relative position between the sliding connection assembly and the second door body are provided with a pre-positioning structure, and the positioning workpiece comprises an alignment part for aligning and positioning with a set position on the second door body. The sliding connection assembly comprises a slidingly connected base and a sliding part, the positioning workpiece comprises a first mounting plate matched with the base and a second mounting plate matched with the sliding part, the first mounting plate is perpendicular to the second mounting plate, the alignment part is arranged on the second mounting plate and extends perpendicularly from the second mounting plate, and the alignment part and the first mounting plate are located on opposite sides of the second mounting plate. The pre-positioning structure comprises a first pre-positioning part arranged on the second mounting plate and a second pre-positioning part arranged on the sliding part, the first pre-positioning part is pre-positioned and matched with the second pre-positioning part, and the positioning workpiece and the sliding part are pre-positioned and assembled. The sliding connection device comprises a first fastener for fixing the sliding part to the second door body, the sliding part comprises a first mounting hole for mounting the first fastener, and a positioning structure arranged on the first mounting hole is used for pre-positioning the first fastener. The first fastener is a screw, the first fastener comprises a screw cap and a screw rod, the positioning structure comprises a positioning rib matched with the screw rod, the minimum inner diameter of the positioning rib is not greater than the outer diameter of the screw rod, and the positioning rib is connected to the inner side edge of the mounting hole. An avoiding space is formed between the positioning rib and the inner side edge of the mounting hole, and the positioning structure comprises a connecting rib connecting the positioning rib and the inner side edge of the mounting hole. The sliding connection device comprises a second fastener for fixing the base to the first door body, the base comprises a second mounting hole for mounting the second fastener, and a limiting structure matched with the second fastener. The second fastener is a screw, the limiting structure comprises a locking hole communicated with the second mounting hole, the inner diameter of the second mounting hole is greater than the screw cap of the second fastener, and the inner diameter of the locking hole is matched with the outer diameter of the screw rod of the second fastener. The sliding connection assembly and the positioning workpiece for positioning the relative position between the sliding connection assembly and the second door body are provided with a pre-positioning structure, and the positioning workpiece comprises an alignment part for aligning and positioning with a set position on the second door body. The sliding connection assembly comprises a slidingly connected base and a sliding part, the positioning workpiece 12. The slip joint device of claim 10, wherein, The sliding connection device comprises a positioning workpiece for positioning the sliding member on the second door body, the positioning workpiece comprises a limiting column oppositely arranged with the mounting hole, the limiting column comprises a receiving groove for receiving the first fastener, the first fastener is limited in the receiving groove and cooperates with the mounting hole.

13. The sliding connection device of claim 12, wherein, The limiting column comprises a step portion arranged at an end of the receiving groove away from the mounting hole, the step portion protrudes inwardly relative to the inner wall of the receiving groove, the step portion has a step face facing the mounting hole, the distance between the step face and the mounting hole is not greater than the length of the first fastener; the first fastener has a pre-installation state, in the pre-installation state, the nut of the first fastener is limited on the step face along the axial direction, and the end of the screw rod is limited on the positioning rib.

14. The sliding connection device of claim 13, wherein The inner diameter of the receiving groove gradually increases in the direction close to the mounting hole, the first fastener has a pre-installation state, in the pre-installation state, the nut is limited on the inner wall of the receiving groove close to the step face along the radial direction.

15. The slip joint device of claim 10, wherein, The limiting column comprises a peripheral wall surrounding the receiving groove, and a through groove arranged on the peripheral wall, the through groove penetrates the inner surface and the outer surface of the peripheral wall along the radial direction of the limiting column, so that the peripheral wall comprises a plurality of arc-shaped walls arranged at intervals in the circumferential direction.

16. The slip joint device of claim 12, wherein, The positioning workpiece comprises a first mounting plate cooperating with the base and a second mounting plate cooperating with the sliding member, the first mounting plate and the second mounting plate are perpendicular to each other, the limiting column is arranged on the second mounting plate, and the second mounting plate comprises an alignment portion for aligning the positioning with the position of the second door body.

17. A sliding connection arrangement according to claim 1 or 16, characterised in that The alignment portion has an alignment face for aligning the positioning with the side surface of the second door body.

18. A sliding connection device according to claim 17, characterised in that The alignment portion has an abutting face for abutting the inner surface of the second door body, and the alignment face is perpendicular to the abutting face.

19. The sliding connection device according to claim 1 or 16, wherein The positioning workpiece comprises two alignment portions arranged at intervals on the same side of the positioning workpiece, and a through opening is formed between the two alignment portions for the sliding connection assembly to pass through.

20. A method of installing a sliding connection device, applied to a sliding connection device according to any one of claims 12-19, characterized in that, The installation steps comprise: providing a base; providing a sliding member slidable cooperating with the base, the sliding member comprising a mounting hole and a positioning structure arranged on the mounting hole; providing a first fastener to be positioned on the positioning structure; providing a positioning workpiece and assembling it with the sliding member pre-assembled with the first fastener, so that the receiving groove limits the first fastener.

21. A method of installing a sliding connection device according to claim 20, wherein, After the positioning workpiece and the sliding member are assembled, the nut is limited in the receiving groove, and the end of the screw rod is limited in the positioning structure; after the positioning workpiece and the sliding member are assembled, they are assembled together with the base.

22. A door assembly, characterized by: The sliding connection device according to any one of claims 1-19 is arranged between the first door body and the second door body.

23. A domestic appliance device, characterized by: The sliding connecting device as claimed in any one of claims 1-19, the sliding connecting device being arranged between a first door body of a household appliance and a second door body of a cabinet for accommodating the household appliance, the second door body covering the first door body.

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